My Daughter and My Son-in-law

My daughter and my son-in-law had stayed at home for several months, but my daughter did not conceive yet during that period of time. They were too idle and did not want to stay at home every day. They could not bear the leisure and did nothing all day long anymore, so they told my relatives by marriage the fact one night when they went back from the electric brushless motors factory. They said that they did not want to stay at home anymore and wanted to work with them in the factory. They were very disappointed when they heard what they said. They only wanted to hug a grandson like another old man, whose daughter-in-law was the boss of the industrial dc motors in the village and they did not want him looking down upon them. My male relative rode his new electric powered bicycle and went my house that night. Why my daughter did not conceive for so long period of time? Was there something wrong with my daughter? He asked me a serious of questions.

After Signing the Divorce Agreement

My ex-husband sent me the divorce agreement several days later; I signed my name on the agreement and I was single from then on. I had no job and no husband within several months. Things had changed so rapidly and I felt very sad. The first time I thought of was to go to the bar and drink beer to drown all my sorrows. I went on my motorized bicycle and went the nearest bar. I drank one bottle of beer after another and after a long time, I heard a voice saying that they were going to close the door I paid for the beer and went out of the bar. I had been drunk, but I could still remember my mamba brushless motor electric car and wanted to ride it home. I felt a little dizzy and could not see things very clearly in front of me. The guard saw me being unable to stand steadily and asked me to take a taxi home instead of riding the electric power bike and he would help me looking after the electric car. I followed his advises and stood by the roadside waiting for a taxi.

My Father and My Son

Since I gave birth to my little baby, my father was too obsessed to go to look at and play with him in my house every day. He asked my brother to give a birth to a baby, but he would say that he and his wife had been busying with their careers in the brushless electric motors and the garden and did not want to have a baby yet every time when my parents prompted him and his wife to give birth to a baby. They got very angry, especially my father, who was an old antique, even wanted to break off with my brother. So he would ride his power e bike and went to my house to coax him every day. He always stayed at my home till very late at night no matter how I asked him to go back home. My husband got angry one night and asked me to call my mother to ask her to take my father home. My mother rode her motorized bike and arrived at my home twenty minutes later and scolded my father and then asked his go home with her. it was the first time that I saw a person liked a baby so much.

The energy efficiency of air condition

Although when the compressor and heat exchanger is confirmed, the general level of energy-saving air-conditioning has been confirmed, but there are air conditioning manufacturers, said air duct motor like we usually call "the last straw breaks the camel." If you tried every means, the air conditioning system efficiency value reached 3.59; in this case, if wind motor single induction motor replaced by brushless DC motor, the value of energy efficiency could reach 3.61, thus, air condition will reach a new level of energy efficiency standards. Therefore, in the current technology to fight to a certain extent, wind tunnel technology to change the motor direction to be the most crucial part. So use brushless motor to manufacturing the fan is the trends of era.

The limited factors to affect the progress of brushless motor

Although the brushless motor will improve the efficiency of air condition, but there still has some difficulties for domestic manufacturers to the research and develop brushless motor. Especially after the development of the enterprise, it will add more difficult for air-conditioning producers, thus, while the air conditioning manufacturers have been put into research and development in this area, but also have to end with a period of time. The second limited factor is the cost, Although the price difference between different specifications brushless DC motor and traditional AC motor is different, but general speaking, The cost of brushless DC motor is twice as traditional AC motor, some even more than doubled.

The meaning of Brushless motor to improve fan efficiency

As to the traditional fixed-frequency air-conditioning, there are several key aspects to improving energy efficiency, the first is the efficiency of the compressor, Currently, the traditional fixed-frequency air-conditioning in the domestic market still has some vitality. The second one is the energy efficiency of heat exchangers. A heat exchanger is in indoor side (also known as the evaporator), another one in the room outside (also known as the condenser.) Two heat exchanger and compressor matching, both of them will affect the energy efficiency of air conditioning.

  In addition to the above two areas, in recent years, to improve the efficiency of air duct of the fan brush motor has become a key component of companies concerned. In fact, the air conditioning compressor also has motor inside. However, the traditional performance improvement of the compressor motor has not much meaning to improve energy efficiency improvements. But the air duct of the motor situation is different. Traditional wind tunnel motor is single phase induction motor; this motor efficiency was in about 40%, but if you use brushless DC motors, motor efficiency can reach above 75%. Therefore, the air duct portion of the motor to improve power consumption can be saved.

The performance comparison of ac motor and dc motor

because of its solid structure, operation stable and reliable, low cost and high efficiency， AC induction motor have been widely used. AC motor controls not as good as DC motor, and in many applications there are precise positioning, torque control, speed control requirements. To achieve this functionality and improve the control precision, we need a more complex closed loop control system and effective control algorithm, the complex control algorithm contains a large amount of data and systems, and there are demanding computing power and speed of the microprocessor.

Formerly, AC motor control they use single chip 8031, 8051 and so on, the circuit components is more, the hardware is complex, system operation reliability is bad and the flexibility is small. the emergence of Digital signal processor (DSP) makes the implementation of modular motor control system become possible.

In the Park

When I was in the park, I found a clear chair and then sat down. I had always been thinking that life was so changeable; I stayed with my husband yesterday and then today he vanished into the thin air. It was really incredible. I felt I was dreaming, but it was not. I pinched myself and could still pain. I heard a noise of a Novak brushless motor when I was sitting on the chair thinking the question, because there were very few people in the park and it was so quiet at that moment, so I could hear every small noise. I raised my head and I could not believe my eyes. The man riding the electric bike should have had been my husband! It was unbelievable. But behind his back, I saw a woman, who was more beautiful and younger than me, and in his eyes, he could completely abandon me according to those two points. I knew it very clearly. He stopped the motorized bicycle and greeted me. He was pale on his face and there was a little shiver in his voice.

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The features of frequency ac motor

Compared with the frequency conversion AC motor, DC frequency motor is adopting permanent magnet which reducing the rotor induced currents and magnetic losses, so it has higher energy saving potential. As more energy-efficient products, DC inverter appliance is expected to become the future new bright spot of home appliance industry; DC inverter technology will become the most promising technology, and brushless inverter DC motor will certainly become the most popular frequency devices to achieve this technology.

As to the advantages of home appliances, the State Quality Inspection Center for household appliances Minister Lu Jianguo take Frequency washing machine for example, On the one hand, when fixed-frequency washing machine in the dehydration starts, the speed increase from zero directly to a high-speed, it is easily lead to vibration and produce noise. On the other hand, frequency water washing are water-saving and energy-saving.

The growth experience of brushless dc motor

Back to the 30s century, people have began to develop brushless DC motorto replace the mechanical brush commutation. After decades of effort, until the early 60s of last century this dream finally comes true, Since the 70s of last century, with the rapid development of power electronics industry, many high-performance power semiconductor devices, such as GTR, MOSFET, IGBT, IPM appeared in succession, and the advent of high-performance permanent magnet, brushless DC motors’ widely used is in laying a solid foundation.

Brushless DC permanent magnet motor main body composes of the motor, motor controller and electronic switching circuit three parts. The stator windings general made of multi-phase (three-phase, four-phase, five-phase range).

E-bikes, Small But With Big Power

What are electric bikes? E-bikes, as they’re called, are not scooters. They don’t travel at those speeds (most going at a max of 20 mph), and they have pedals just as regular bicycles do, which riders can use to travel at their own steam. When the terrain gets rough, cyclists either turn a key or push a button to engage the motor. E-bike doesn’t replace their effort, but it does allow them to cycle farther and faster with less exertion. These vehicles do not run on fossil fuels, so they’re a relatively “green” mode of transportation; a removable battery is the power source. “There’s no learning curve to using these bikes,” assures Dan Lehman, owner of the e bike tour company Austin Lehman, the first North American outfit to use these bikes widely on its tours. They’re very intuitive, with brakes that are the same as on a normal bike.

A Famous Electric Motor Company

An electric motor company in Flagstaff, Ariz., is going global to build motors for electric bikes and other applications. Electric-powered bicycles, or e-bikes, are the first commercial application for the 5-inch high motor from Motor Excellence. Contracts to build up to 1,000 high-efficiency electric motors by the end of the year for customers in Europe and Asia are expected to add 30 jobs by the end of the year to the 40 the company already employs. The company has won a nearly $1 million grant from the Arizona Commerce Authority for clean energy technology, just like electric bikes. The company is more than two years ahead of the schedule it set in 2009 when it received the $962,000 grant from the 21st Century Grant Program coordinated by the ACA. The grant used federal stimulus funds specifically designed for investing in energy-efficient and renewable-energy products manufactured in Arizona.

E-bike’s Advantage and disadvantage

Electric bikes have the unique advantage that not requiring a license. While, unfortunately gas powered ones do and you have to follow all the standard motor vehicle laws before. So you can still get a DUI on gas powered bike but probably not on electric one though that varies state to state and I'm sure they'll change that if they haven't already. Personally I could not justify the cost of an electric bike. The kit is worth the money and over time you'd save money. Instead of paying 50-80 dollars a month in gas you've be spending about 13 dollars a month to go 400 miles. I question though how long an electric motor would hold up going 400 miles a month though even if it only lasts a year it still easily pays for itself. Personally though I think I'd only use it for recreation or kind of a middle ground in exercise.

Insurance Company’s Warning

The Insurance Brokers Association of Ontario (IBAO) now is warning consumers using vehicles such as scooters and electric bicycles (e-bikes) that these vehicles offer limited or no liability coverage on a consumer's insurance policy. In a statement, IBAO CEO said the association's warning was prompted by an increasing number of advertisements at the dealer level stating that these bikes require no insurance. "While this statement is in fact true, these vehicles still pose a real danger," Carroll said. "Ontario citizens need to know that they may have no liability coverage if they get into an accident with one of these vehicles and they could find themselves without coverage if they cause property damage or worse, injure another person." Habitational policies exclude "gas powered bicycles except for lawnmowers, other gardening equipment, snow blowers, wheelchairs and motorized golf carts on the golf premises." However, a good number of policies exclude electric bikes and other such vehicles.

Bike Expo

This year, for the first time, Bike Expo actively covers all the segments of the cycling industry. The young trade show thus positions itself as a segment-overlapping presentation platform for road, MTB, urban and also electric bikes. The segments are presented according to themes, ensuring optimal orientation and an efficient trade show visit for retailers. One of the focus topics at Bike Expo is a professional training program for retailers. Consumers increasingly demand competent service. Dealers and retailers need to distinguish themselves from the competition; continuing education is the key. In Munich retailers can expect events such as the 5th ISPO Innovation Forum, the 2nd International Bicycle Developers’ Congress, manufacturer workshops by SR Suntour and Hostettler and the training program by Extra Energy E.V. This is a successful event, especially for electric powered bicycles. Lots of electric bike kits are shown on this Expo. They are wheels, brakes, and electric motors. And also you can use these kits to own yourself a diy electric motorcycle or bicycle.

Electric Bikes, So Convenient

Many people are a little confused as to what an electric bike is. Is it really a scooter, or a bike? Can you pedal on it? Will the motor take you a long way? Is it really worth buying one? Actually an electric bike is a pretty interesting product. It can help you get the exercise you need, and go more distances at the same time. Let’s go over the electric bike in itself. The electric bicycle comes in two different styles. The first looks like a bike but the second like a motor scooter. An electric bike has certain specifications and is not allowed to run at speeds higher than 15 mph. Motors cannot be made to go faster than that. In most countries you don’t have to register an e bike. This means you don’t have to pay insurance, or pay taxes on it. In most cases you aren’t even required to wear a helmet, although it’s much suggested.

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Echo and A Boy in Our University

Echo was born in a rich family. She was the school flower of our university and every student discussed her every day. She turned a blind eye on any other outstanding boy’s pursuit and fell in love with a poor boy on the contrary. No one of us could understand why she should have had fallen in love him. She would ride her gas powered bicycle or take a taxi to school before she fell in love with him, but she went by the bus when she decided to ran after him, because she wanted to take the opportunity to meet him in a short distance. He rode his electric trike to avoid her, because he thought that he did not match her and he did not want to become other students’ jokes. But she still insisted to pursue him. He told her one day that he did not want her like that and that she could find a better man than him. She went on her homemade brushless motor electric car and ran after him with the quickest speed. She told me that she would never give up pursuing him before he promised her.

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The Result of Being Pressed by the Door

All villagers knew that I was pressed by the gate of my colleague’s house the next day and I became the joke of our village suddenly. I was criticized by my aunt and uncle. I explained to them that I only wanted to scare him and had never thought the result. More importantly, I was innocent, but they did not believe no matter how I explained. My girlfriend rode her latest electric bicycle and went to my aunt’s house that morning. She asked me that whether I had really pressed by the door and I nodded. She said that she had known and left the house disappointedly. I was really too impulsive and childish that time. I went on my ac brushless motor electric car and ran after my girlfriend, but in vain; she was unwilling to talk with me at all. I knew that I had finished. She did not speak to me afterwards. I went to her bicycle electric motors factory for several times in the hope of begging for her forgiveness, but she did not look at me at all. I knew it was my fault, but she did not give me the chance.

My Aunt

After I came back from the vegetable market, my aunt had stood at the door of the house waiting for me and asked me why I had gone for so long. I was hesitant and could not how to tell her. She perceived that I had something to tell, but I attempted to conceal. She did not stop asking me and so I had to tell her the truth. I stopped the dc brushless motor electric car and pulled her entering the house. I told her that I had seen my uncle staying with a girl in his car. She was not only young, but also beautiful. Her expression changed suddenly when she heard the message. She called my uncle at once. My uncle said that he was having a meeting in the hub motors bikes factory with his general manager and hung the phone right away. My aunt could not be happy and asked me to cook. She was restless and maybe was thinking what my uncle was actually doing. She rushed out of the house and rode the motorized bicycle hurriedly. I shouted behind her, but she had gone farther and farther.

A Misunderstanding

I heard one of my colleagues cursed me, saying that I was a scoundrel and many other harsh words that injured me deeply when I was at the door of our company one day. I had not done anything wrong and why she cursed me like that. I could not understand. I stopped my sensored brushless motor electric car and entered the company. I asked her why she abused me. Her face became red and she was speechless suddenly. She told me that she only cracked a joke with her husband in the telephone and had no hostility on me. I did not believe what she said. I rode my electric e bike and went to ask his husband. Her husband told me that he did not trust me and was afraid that I had affection towards his wife. He did not trust me and asked her wife to curse and so that he would believe there was nothing between us. I left his electric hub motors factory angrily. I had never had anything thought on his wife and more importantly I had my own girlfriend. I thought he had thought too much.

The Result of A Bluster

I wanted to frighten my colleague’s husband when he did not trust me and suspected that I had ambiguous mind towards her wife. I scared him that I was on the way to her wife’s house on my brushed dc motor electric car when I called him one night. I told him that I was innocent and had never had any evil intention on her wife. But he did not believe; I repeated, he still did not believe, so I got angry and decided to scare him. He worked in another place. When I said I was on the way to their house and let him heard the noise of the dc brushless motor, he was really nervous and hurry. He begged me not to go and not to do stupid thing; I did not listen to her words at all and continued going on. The steel door was close when I arrived at their house. I tried to go in through the gap and my head was pressed; I could not neither enter nor come out. A person riding an electric e bike came several minutes later. it was my colleague’s father, who just got off work and saved me in the end.

One Sunday

I was pleasant to spend my Sundays on staying with him, even though he was unpleasant to speak to me or meet me or really had no time. It was my pleasure to spend time on him, as long as I could meet him. It rained heavily one Sunday, in order to have a look at him; I rode my small brushless motor electric car to find him everywhere. He was not in his snack bar, so I went to his office. He was indeed down there. He was playing cards. I sent him s short message, saying that I was at the door of his office and wanting him to come out. I waited for him for the whole day, but he did not reply my short message, nor came out. I left there on the 12 volt dc motor electric car when it was dark. Since he did not want to meet me, nor spoke to me, I would not force him and disturb him, so long as he did not go angry with me anymore and I would be very content. I swore that I would no longer press him to meet him. I went to the electric bikes shop the next day as usual, because life had to continue.

Being Transferred to Work in the Government

I was transferred to work in our local government after one year of working in the health center. I was very happy when I heard the good news and there was no exception to my parents, who were extremely proud of me. The happiest person was my girlfriend, who jumped when I told her the news. He bought me a new electric e bike before I went to work in the government. My parents held a celebration for me and there were many people coming to the party to congratulate me. I was the first university student in our village and they were happy for me. My parents worked in an electric brushless motors factory and their workshop director also came to the celebration. I did not know how to express my feeling that day. I was happy on the one hand, and felt a heavy stress at the bottom of my heart on the other hand. I went to the government ten days later when another people arrived at the center and replaced me. She rode a motorized bicycle wearing a sweet smile that day. I thought she could do the job well.

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A Stranger’s Short Messages

A stranger called me one day, saying that he was my friend; I did not recognize the number, saying that he had made a mistake and hung the telephone immediately. I received some strange short messages several days later. The message sender said that it was his friend who gave him my phone number. I was puzzled when I was riding my electric bicycle to work the next day. I had never given my telephone number to a stranger and I could not understand. He kept on sending me short messages and said some ambiguous words to me, as if I was her acquaintance, but he just did not tell me who he was when I asked him. When I took the brushless dc motor to repair one day, he sent me a short message; he called me darling and asked me what I was doing. I thought something had gone wrong with his mind. I really wanted to curse him at that time. When my 24v dc motor was fixed, he sent me another short message, saying that I was his angel and he was with me at all times.

Changes after an Appointment

After I returned home from an appointment with the stranger, who had cheated me and did not come to the appointment at all, I had a lot of ideas. I had never thought the results of meeting a stranger before I was deceived. If he was in fact a villain and bullied me, how should I do? I was thinking the problem when I was riding my power e bike on the way to my house. I should thank him not coming to meet me. I could not be so pure in the future and should look before I leaped. I had been grown up and should learn to consider problems thoroughly. I went to my uncle’s geared hub motors factory before I went home. I told my uncle that I did not want to live that kind of boring life anymore and wanted to work in his factory; he promised me. I bought a new dc brushless servo motor electric car and rode it to my uncle’s factory several days later. It was high time that I should take a decent job and so that I would not do some stupid things, such as meeting a stranger impulsively or missing him all day long.

My Friend Echo

Echo was one of my friends. She was a quiet girl and did not talk too much. She was unpleasant to speak to others except me. I often enlighten and asked her to communicate with other people. It was difficult to get along with an unsociable girl and I had spent too much time on looking after her. I felt tired sometimes. We worked in the same motor speed controllers factory and she had made not a few troubles in it and it was me who helped her to settle them every time. In other people’s eyes, she was a silly girl and easy to bully. People always fabricated something against her and she felt she was extremely wronged. She often rode her gas powered bicycle and escaped from the factory in tears. I ran after her and comforted her every time, because I was her only friend and I could not turn a blind on her. I had no way and had to help her. She was knocked down by a motorized bicycle one time because of her carelessness and the fast speed. I sent her to the hospital and looked after her.

Wanting to Back to the Past

I felt I was shameless when I kept on calling and disturbing him, because he was a busy person and had a lot of things to deal with every day. I was a relative idle person and I would call him or send him short messages as long as I had nothing to do. I knew he was busy, but I could not control myself sometimes and bothered him when I was not busy. He got angry one day when he was in the brushless motor controllers factory and I knew I was wrong. I regretted and hated myself very much. I once closed myself from the outside world for a period of time since he got angry with me. I put blame on myself and lived a guilty life after that. I always rode my diy electric motorcycle and went to the place where we met for the first time afterwards. I did not know how he thought about the matter, for he did not speak to me after that day. I stood beside the motorized bike and was lost in thought of the matter for a long time. I could not help missing him and wanted to retrieve our feelings and return back to before.

A Person’s Sudden Change

I had been accustomed with his encourages and greetings since we knew each other. I thought those days were my happiest times in my life and I would never forget them. His encourages and greetings had given me hopes of living and I could not do without them. I could make money in the electric brushless motors factory when I was lack of it; I could borrow money from my colleagues when I encountered emergent situation. What I needed the most was his encourages and greetings. So I was heartbroken when he stopped keeping on touch with me. I was absent from the electric bikes shop for three days in the hope of making peace with him. I could not accept the fact and could not understand it at all. But he had been keeping silent and calm all times. I went to find him everywhere on my motorized bike and went home disappointedly every day. I wanted to make clear the reason of his sudden change, but he did not give me the chance at all.

On Mother’s Day

I had been very busy with the snack bar in the downtown area and seldom had time to accompany my son at weekends. As his mother, I always felt rather sorry to him. In order to accompany him, I called my aunt and asked her to look after the store for me on last Mother’s Day. She arrived at the shop one hour later on her electric e bike and I left there. My son was waiting for me at the door of the largest shopping mall when we met each other. He was a good child and often got the first place in his grade. My husband and I were very proud of him. I rode the motorized bicycle my husband bought for me one year ago to the public park of the city that day. He sat behind me. I asked him to play to his heart’s content in the park. Although the park was not far from our house, it was not easy for me to accompany him playing in it. We left there and went home on my brushless motor electric car two hours later. He fished many goldfishes and the two of us had a good time that day.

An Appointment with Stranger

I had never chat with a stranger on the Internet before. One day, a person added me as his friend suddenly and did not stop sending me messages. He was not a scoundrel judging from his words, so I did not refuse and kept on chatting with him for several months. I had taken him as my friend and had not thought too much. He proposed to meet each one day when I was in the store buying a dc brushless servo motor electric car. I thought that it did not matter if only to meet each other or have a dinner together. It would be rather normal for friends to have an appointment. I promised him and rode my new electric bicycle to meet him the next day after work. Unfortunately, he vanished into the thin air when I arrived at the place he asked me to go. Maybe I was too pure and easy to believe a stranger’s words. I got on my dc geared motor electric car and went home in a bad mood. I learned from the matter that I would no longer chat with a stranger, let alone meet a stranger.

Changing Myself

I worked very hard from Monday to Saturday and dared not to take along with my mobile phone during the day, because I was afraid that I could not control myself to call him and I would be rather sad and could not settle down myself to work if he did not answer my telephones. In order not to affect my mood, I tried my best not to call him. I rode my electric bike bicycle after work every day and I would pass by his office. I would be rather happy if he was in the office at that moment, because I knew he was in the city and lived a happy life. That would be enough. I left there on the motorized bicycle after staring at him in case he did not know for nearly half and an hour. Because I knew clearly that he did not want to be bothered when he was working and so I did not enter the office. He had been very busy with his ac motors factory and had a lot of matters to deal with during the day. I should not like a child and bother him everyday. I must change myself and learn to be sensible.

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A Stranger’s Short Messages

A stranger called me one day, saying that he was my friend; I did not recognize the number, saying that he had made a mistake and hung the telephone immediately. I received some strange short messages several days later. The message sender said that it was his friend who gave him my phone number. I was puzzled when I was riding my electric bicycle to work the next day. I had never given my telephone number to a stranger and I could not understand. He kept on sending me short messages and said some ambiguous words to me, as if I was her acquaintance, but he just did not tell me who he was when I asked him. When I took the brushless dc motor to repair one day, he sent me a short message; he called me darling and asked me what I was doing. I thought something had gone wrong with his mind. I really wanted to curse him at that time. When my 24v dc motor was fixed, he sent me another short message, saying that I was his angel and he was with me at all times.

Changes after an Appointment

After I returned home from an appointment with the stranger, who had cheated me and did not come to the appointment at all, I had a lot of ideas. I had never thought the results of meeting a stranger before I was deceived. If he was in fact a villain and bullied me, how should I do? I was thinking the problem when I was riding my power e bike on the way to my house. I should thank him not coming to meet me. I could not be so pure in the future and should look before I leaped. I had been grown up and should learn to consider problems thoroughly. I went to my uncle’s geared hub motors factory before I went home. I told my uncle that I did not want to live that kind of boring life anymore and wanted to work in his factory; he promised me. I bought a new dc brushless servo motor electric car and rode it to my uncle’s factory several days later. It was high time that I should take a decent job and so that I would not do some stupid things, such as meeting a stranger impulsively or missing him all day long.

My Friend Echo

Echo was one of my friends. She was a quiet girl and did not talk too much. She was unpleasant to speak to others except me. I often enlighten and asked her to communicate with other people. It was difficult to get along with an unsociable girl and I had spent too much time on looking after her. I felt tired sometimes. We worked in the same motor speed controllers factory and she had made not a few troubles in it and it was me who helped her to settle them every time. In other people’s eyes, she was a silly girl and easy to bully. People always fabricated something against her and she felt she was extremely wronged. She often rode her gas powered bicycle and escaped from the factory in tears. I ran after her and comforted her every time, because I was her only friend and I could not turn a blind on her. I had no way and had to help her. She was knocked down by a motorized bicycle one time because of her carelessness and the fast speed. I sent her to the hospital and looked after her.

Wanting to Back to the Past

I felt I was shameless when I kept on calling and disturbing him, because he was a busy person and had a lot of things to deal with every day. I was a relative idle person and I would call him or send him short messages as long as I had nothing to do. I knew he was busy, but I could not control myself sometimes and bothered him when I was not busy. He got angry one day when he was in the brushless motor controllers factory and I knew I was wrong. I regretted and hated myself very much. I once closed myself from the outside world for a period of time since he got angry with me. I put blame on myself and lived a guilty life after that. I always rode my diy electric motorcycle and went to the place where we met for the first time afterwards. I did not know how he thought about the matter, for he did not speak to me after that day. I stood beside the motorized bike and was lost in thought of the matter for a long time. I could not help missing him and wanted to retrieve our feelings and return back to before.

A Person’s Sudden Change

I had been accustomed with his encourages and greetings since we knew each other. I thought those days were my happiest times in my life and I would never forget them. His encourages and greetings had given me hopes of living and I could not do without them. I could make money in the electric brushless motors factory when I was lack of it; I could borrow money from my colleagues when I encountered emergent situation. What I needed the most was his encourages and greetings. So I was heartbroken when he stopped keeping on touch with me. I was absent from the electric bikes shop for three days in the hope of making peace with him. I could not accept the fact and could not understand it at all. But he had been keeping silent and calm all times. I went to find him everywhere on my motorized bike and went home disappointedly every day. I wanted to make clear the reason of his sudden change, but he did not give me the chance at all.

On Mother’s Day

I had been very busy with the snack bar in the downtown area and seldom had time to accompany my son at weekends. As his mother, I always felt rather sorry to him. In order to accompany him, I called my aunt and asked her to look after the store for me on last Mother’s Day. She arrived at the shop one hour later on her electric e bike and I left there. My son was waiting for me at the door of the largest shopping mall when we met each other. He was a good child and often got the first place in his grade. My husband and I were very proud of him. I rode the motorized bicycle my husband bought for me one year ago to the public park of the city that day. He sat behind me. I asked him to play to his heart’s content in the park. Although the park was not far from our house, it was not easy for me to accompany him playing in it. We left there and went home on my brushless motor electric car two hours later. He fished many goldfishes and the two of us had a good time that day.

An Appointment with Stranger

I had never chat with a stranger on the Internet before. One day, a person added me as his friend suddenly and did not stop sending me messages. He was not a scoundrel judging from his words, so I did not refuse and kept on chatting with him for several months. I had taken him as my friend and had not thought too much. He proposed to meet each one day when I was in the store buying a dc brushless servo motor electric car. I thought that it did not matter if only to meet each other or have a dinner together. It would be rather normal for friends to have an appointment. I promised him and rode my new electric bicycle to meet him the next day after work. Unfortunately, he vanished into the thin air when I arrived at the place he asked me to go. Maybe I was too pure and easy to believe a stranger’s words. I got on my dc geared motor electric car and went home in a bad mood. I learned from the matter that I would no longer chat with a stranger, let alone meet a stranger.

Changing Myself

I worked very hard from Monday to Saturday and dared not to take along with my mobile phone during the day, because I was afraid that I could not control myself to call him and I would be rather sad and could not settle down myself to work if he did not answer my telephones. In order not to affect my mood, I tried my best not to call him. I rode my electric bike bicycle after work every day and I would pass by his office. I would be rather happy if he was in the office at that moment, because I knew he was in the city and lived a happy life. That would be enough. I left there on the motorized bicycle after staring at him in case he did not know for nearly half and an hour. Because I knew clearly that he did not want to be bothered when he was working and so I did not enter the office. He had been very busy with his ac motors factory and had a lot of matters to deal with during the day. I should not like a child and bother him everyday. I must change myself and learn to be sensible.

Paragraph. 单击此处进行编辑.

About the brushless motor

In the first part of my PPT demonstration, I referred the structure of the brushless motors. I would give an example here.

As we all know, the Electric bicycle servo motor is specifically subdivided into the following four types: No tooth brush, brush there teeth, no tooth brush and brushless toothed. Next, I will give a brushless motor introduction of electric bicycle as a key point. The Brushless motor has no brush and commutator, according to the position of the rotor, it could provide the electric current in different directions for the inside coils. In addition, the brushless motor also can be divided into position sensor brushless motor and sensor brushless motor without position. The current electric brushless motor which is applied in the electric bicycle is position sensor brushless motor.

My mom would go to the ceremony

Tomorrow is the honoring ceremony, but I haven’t told my parents about it. My dad has been on a business trip to another city, if he was at home, I could invite him to attend this ceremony to share my honor. If he knew I got the first prize, he must be proud of me. By the way, my dad is a micro brushless motors manufacturer, I should thank for his guiding on the way of electric motor learning. I could tell the difference between different brushless motors when I was a little child.

I don’t want my mom to know about it, but she heard of the news from my teacher. Unfortunately, mom said she would go. This would be the first time that my classmates and teacher met my mother and I was embarrassed by her appearance. Although she was a beautiful woman, there was a severe scar that covers nearly the entire right side of her face. I never want to talk about why or how she got the scar.

At the beginning of the ceremony

At the ceremony, the people were impressed by the kindness and natural beauty of my mother despite the scar, but I was still embarrassed. 

“The first prize belongs to Edward; he invented an apple cutter which can cut apple or banana into pieces at the same time. He is a student of art, may be he never learns the professional knowledge of brushless dc motor design, but he invented a machine which the science students can not make.” The host said. “Let’s invite him to say something about his invention. Give him a big hand!” I stepped to the platform slowly; I hadn’t prepared well to speak in front of hundred people. “First of all, I want to thank my dad, it’s him who makes me have interest on brushless motor design, and then I can come up with the idea of application of micro brushless motors.” I said intermittently.

I thanked Mr. Green on the ceremony

“Besides, I want to thank my college and my dear teacher Mr. Green. I have a great time at your class. You not only teach me how to study well but you told me how to do things in the special brushless servo motor team. You have the responsibility for every student. You told everybody to try best in life. You know, brushless electric motor is an important part of my life, because I have a dream to become an electric engineer as excellent as you. Though electric engineering is not my major, it means a lot to me, especially the part of sensorless brushless motor research.   Thank you so much from the bottom of my heart”, finally, I ended the speech.

When I back to my seat, mom was not on her seat. I didn’t know where he went to, and I didn’t care about it, maybe she had something to do. I felt comfortable without her besides me.

Mr. Green encouraged me

After the ceremony, Mr. Green came to me, and he congratulated me on the first prize. “It’s really an interesting invention; it contributed to your hard working on the course of small brushless motor and the practice in your father’s brushless dc servo motorworkshop, I look forward to your success on the field of brushless motors.” he encouraged me. 

“Where did your mother?” he asked me. “I don’t know, I didn’t see her when I get back from the platform. Maybe she had something to do.” I replied. “Don’t you know that you are the only very important ‘thing’ to her? How can you treat her like that?” he said seriously, he was kind to me; it is the first time he said to me in this way. I was silent there. “Do you know how she got the scar on her face?” he added.

Mr. Green told me a story

“You were in a room that caught on fire when you were a baby, everyone was too afraid to go into it because the fire was out of control, but your mom ran toward your crib, at that moment, a beam came down and she placed herself over you trying to protect you. She was knocked unconscious but fortunately, a fireman came in and saved both of you.” Mr. Green told me the story which my mom never told me. I was moved into tears. “Doctor told her that the scar would be permanent, but to this day, she has never regretted doing what she did. Just now, when you referred the invention of micro brushless motorsappliance, why did you ignore her?”

Then I understood why mom went away after listening to my speech on the brushless motor. I thanked everyone except her, how can I treat her like that? I blamed myself badly.

The story I never heard

“Why didn’t she tell me about it? If I knew the truth, I would not feel embarrassed with her at all.” I cried out. My dad has never told me the story. “She could do everything for you, so she thought it was unnecessary to tell you.” Mr. Green said to me.

On my way home, the memory recalled. Mom spent all her time on the family these years. Both dad and I have never cared about her thoughtfully. Dad paid all his attention on his brushless motor business and usually works late at office. What he cared is how many himax brushless motors have been sold every day and how to get a higher sales volume. Sometimes, I even refuse to speak to her.

I pushed the door of my room, she was folding my clothes. I ran toward her with tears in my eyes. I hugged her and felt an overwhelming sense of the sacrifice that she had made for me

Susan was sightless

The passengers on the bus watched sympathetically as Susan made her way carefully up the steps. She paid the driver and then, using her hands to feel the location of the seats, settled in to one. She placed her briefcase on her lap and rested her cane against her leg.

It had been a year since Susan, thirty-four, became blind. As the result of an accident she was sightless, suddenly thrown into a world of darkness, anger, frustration and self-pity. All she had to cling to was her husband Mark.

Mark owned a company which specialized in outrunner brushless motors and many other different brushless motors; he is one of the largest brushless motor manufacturers in our local city. Mark loved Susan with all his heart. When she first lost her sight, he watched her sink into despair and he became determined to use every means possible to help his wife.

Paragraph. 单击此处进行编辑.

About the brushless motor

In the first part of my PPT demonstration, I referred the structure of the brushless motors. I would give an example here.

As we all know, the Electric bicycle servo motor is specifically subdivided into the following four types: No tooth brush, brush there teeth, no tooth brush and brushless toothed. Next, I will give a brushless motor introduction of electric bicycle as a key point. The Brushless motor has no brush and commutator, according to the position of the rotor, it could provide the electric current in different directions for the inside coils. In addition, the brushless motor also can be divided into position sensor brushless motor and sensor brushless motor without position. The current electric brushless motor which is applied in the electric bicycle is position sensor brushless motor.

My mom would go to the ceremony

Tomorrow is the honoring ceremony, but I haven’t told my parents about it. My dad has been on a business trip to another city, if he was at home, I could invite him to attend this ceremony to share my honor. If he knew I got the first prize, he must be proud of me. By the way, my dad is a micro brushless motors manufacturer, I should thank for his guiding on the way of electric motor learning. I could tell the difference between different brushless motors when I was a little child.

I don’t want my mom to know about it, but she heard of the news from my teacher. Unfortunately, mom said she would go. This would be the first time that my classmates and teacher met my mother and I was embarrassed by her appearance. Although she was a beautiful woman, there was a severe scar that covers nearly the entire right side of her face. I never want to talk about why or how she got the scar.

At the beginning of the ceremony

At the ceremony, the people were impressed by the kindness and natural beauty of my mother despite the scar, but I was still embarrassed. 

“The first prize belongs to Edward; he invented an apple cutter which can cut apple or banana into pieces at the same time. He is a student of art, may be he never learns the professional knowledge of brushless dc motor design, but he invented a machine which the science students can not make.” The host said. “Let’s invite him to say something about his invention. Give him a big hand!” I stepped to the platform slowly; I hadn’t prepared well to speak in front of hundred people. “First of all, I want to thank my dad, it’s him who makes me have interest on brushless motor design, and then I can come up with the idea of application of micro brushless motors.” I said intermittently.

I thanked Mr. Green on the ceremony

“Besides, I want to thank my college and my dear teacher Mr. Green. I have a great time at your class. You not only teach me how to study well but you told me how to do things in the special brushless servo motor team. You have the responsibility for every student. You told everybody to try best in life. You know, brushless electric motor is an important part of my life, because I have a dream to become an electric engineer as excellent as you. Though electric engineering is not my major, it means a lot to me, especially the part of sensorless brushless motor research.   Thank you so much from the bottom of my heart”, finally, I ended the speech.

When I back to my seat, mom was not on her seat. I didn’t know where he went to, and I didn’t care about it, maybe she had something to do. I felt comfortable without her besides me.

Mr. Green encouraged me

After the ceremony, Mr. Green came to me, and he congratulated me on the first prize. “It’s really an interesting invention; it contributed to your hard working on the course of small brushless motor and the practice in your father’s brushless dc servo motorworkshop, I look forward to your success on the field of brushless motors.” he encouraged me. 

“Where did your mother?” he asked me. “I don’t know, I didn’t see her when I get back from the platform. Maybe she had something to do.” I replied. “Don’t you know that you are the only very important ‘thing’ to her? How can you treat her like that?” he said seriously, he was kind to me; it is the first time he said to me in this way. I was silent there. “Do you know how she got the scar on her face?” he added.

Mr. Green told me a story

“You were in a room that caught on fire when you were a baby, everyone was too afraid to go into it because the fire was out of control, but your mom ran toward your crib, at that moment, a beam came down and she placed herself over you trying to protect you. She was knocked unconscious but fortunately, a fireman came in and saved both of you.” Mr. Green told me the story which my mom never told me. I was moved into tears. “Doctor told her that the scar would be permanent, but to this day, she has never regretted doing what she did. Just now, when you referred the invention of micro brushless motorsappliance, why did you ignore her?”

Then I understood why mom went away after listening to my speech on the brushless motor. I thanked everyone except her, how can I treat her like that? I blamed myself badly.

The story I never heard

“Why didn’t she tell me about it? If I knew the truth, I would not feel embarrassed with her at all.” I cried out. My dad has never told me the story. “She could do everything for you, so she thought it was unnecessary to tell you.” Mr. Green said to me.

On my way home, the memory recalled. Mom spent all her time on the family these years. Both dad and I have never cared about her thoughtfully. Dad paid all his attention on his brushless motor business and usually works late at office. What he cared is how many himax brushless motors have been sold every day and how to get a higher sales volume. Sometimes, I even refuse to speak to her.

I pushed the door of my room, she was folding my clothes. I ran toward her with tears in my eyes. I hugged her and felt an overwhelming sense of the sacrifice that she had made for me

Susan was sightless

The passengers on the bus watched sympathetically as Susan made her way carefully up the steps. She paid the driver and then, using her hands to feel the location of the seats, settled in to one. She placed her briefcase on her lap and rested her cane against her leg.

It had been a year since Susan, thirty-four, became blind. As the result of an accident she was sightless, suddenly thrown into a world of darkness, anger, frustration and self-pity. All she had to cling to was her husband Mark.

Mark owned a company which specialized in outrunner brushless motors and many other different brushless motors; he is one of the largest brushless motor manufacturers in our local city. Mark loved Susan with all his heart. When she first lost her sight, he watched her sink into despair and he became determined to use every means possible to help his wife.

Paragraph. 单击此处进行编辑.

A Good Man

He was so brilliant that I could not help falling in love with him. I thought I could no longer encounter a man who was as outstanding as him in my life. He had become the obstacle of my looking for a boyfriend, because the good man in the world had been running out, and it was very difficult for me to find a man like him. He was the founder of Himax brushless motors and the kindest man I had seen in the world. But unfortunately, he had gotten married and I could not accept the fact. Which woman had been so lucky and got married with him. I was envious of her. I rode my electric bike to work every morning and complained that why my mother had not born me earlier and then I could have encountered him earlier. It was a pity that I could not get married with him. I often rode the motorized bicycle to the river bank after work and shouted loudly there. He should have been mine if I had been born early. I did not want to get marry with anybody except him.

Being out of Control

I had spent too much time on him and it was me who had been injured in the end. I did not know why I was so silly and infatuated. I wanted to hear his voice, wanted to meet him, wanted to stay with him every day. I missed him so much that I nearly went crazy. I thought of him when I took my brushless dc motors to repair; I thought of him when I was working in the company; I thought of him when I was eating. Thinking of him just like being addicted to drug and I was possessed by the devil. I thought him when I saw the electric bike conversion kits in the store. I knew that I should not have missed him so much, but I was out of control. I could not hold anything or anybody except him. I had told to myself many times that I could not keep on missing him, but I could not do it. I should have worked in the hub motors for electric vehicles factory wholeheartedly and saved enough money to repay the debts, but I could not settle down at all. It was high time I should have changed myself.

What Was Wrong with Me

I once missed a person so much that I could not settle down myself to do anything. It had been the first time that I had such kind of strong feeling of missing a person and was out of control. What was wrong with me? I was very uncomfortable and my heart ached so much that I could not breathe sometimes. The noises of electric bicycle motors could drive me into a desperate situation and I could not bear them anymore. I only wanted to find a quiet place and vented by the mean of crying loudly. I walked along the streets and could not help sobbing. I was knocked down by an electric bike bicycle on the road because of my paying no attention to it. He cursed me that I could not walk and he pushed me onto the ground. Why I was so unfortunate when I ran into the saddest moment? The brushless motor electric car owner was so vicious that I had no opportunity to say a word. I thought that moment was the most wronged moment in my life and I would never forget it.

A Sudden Change

I wished I could overcome the difficulty and became a lively and open-minded girl that I was before. But I had no confidence at all. I was a girl of sharp tongue and soft heart. I was very fragile at the bottom of my heart and could no longer bear any hit. I was very afraid being injured and I did not want to love again. We knew each other in bldc motor controllers factory and he attracted me completely one day. I wanted to see his smile and talk with him every day. I knew I had fallen in love with him deeply. He also made me laugh and joked with me. I was very happy and my everyday life was full of sunshine. I rode my electric bicycle very early every morning and could not wait seeing him. It was the first time that I had that kind of strong feeling. I was happy as long as I could see him. But he did not speak to me one day suddenly and I did not know why. I took another job in a bicycle electric motors factory. I had lost my confidence towards life and was in low-spirited every day.

A Bad of My Mum

Yesterday, when I went back home, I found my mum was not at home. So I called her because everyday this time she had already been at home waiting for me. However, her telephone had nobody answered. I cooked for myself. Just when I was eating, my mum came back with her electric bike. I came to her and asked why her electric bike was broken. She told me that she had an accident. After making sure she was all right, I helped her to pull her bike to the repairer. After examine, the repairer said there are a lot of damages on the electric bike kits. So it needed to take a long term to repair the bike. And also he said to my mum that among all the kits, the most valuable kit --- the dc motor had also been damaged. So it should take much money to repair it. What a bad day for my mum.

DIY

DIY means do it yourself. Recently, diy goods are very popular. More and more people like to buy diy goods or directly make diy goods themselves. So you can see there are many goods such as T-shirts, shoes, and many other things. One of my friend and I want to diy a special kind of thing. In fact, it’s not that special. But the process is complicated. We want to diy an electric bike. Maybe when you hear this, you will think we’re crazy. Only by us, we can’t make it. Yes, of course. But we want to have a try so that can leave a good memory for us. At first, we found our e bike knowledge is very limited. So we searched many resources. Then we spent much time and money to prepare for the electric bike kits. And also we asked for many experienced worker for the equipment of our ebike. At last, we all found that it was very worthwhile.

Designing An E Bike

Now I'm designing an electric bike. It’s quite an interesting job. But there are still some other things I need. Firstly, I want an electric bike kit. I want a 48V 1000w rear hub motor. I also need to have Pedelec and Twist grip, and a controller. So now I'm trying my best to look for a 35-40MPH top speed that from the e bike motor and good hill climbing ability. I also would like the speed controller to be within 110mm*80mm*40mm. The speed controller goes inside our frame, so it needs to be small. I also need all the fixings. I do not require a battery. The e bike I'm designing is extremely exciting and unique. Though it is a diy e bike, I am sure it will become the best electric bike. And I hope it can be sold widely in the future.

Smart New Ebikes

In this season, Smart has launched its new products. Apart from the electric scooters, Smart also presented the Smart electric bikes at the Paris Motor Show. The smart ebikes do not deliver the power like the scooters via the throttle grip, but through the rider pedals. In other words the smart ebikes are powered by a muscle power-electric hybrid drive. The Smart ebikes are powered by an electric drive which is integrated in the rear wheels. The electric bike motors cut off automatically cut off at 25 km/h. This means that you won’t need a driver’s license to use the smart ebike. A Smart ebike weighs only 22 kg, which makes it one of the lightest in its segment. The smart ebikes are all equipped with 26 inch lightweight wheels with six double spokes a full LED headlamp and an LED rear lamps. The power of the Smart ebike comes from a 250 watt brushless direct current wheel hub motor which is juiced by a lithium-ion battery with voltage of 36 volts and capacity of 9.6 Ah.

Paragraph. 单击此处进行编辑.

Electric bike

E bike is the abbreviation of electrical bike; I believe that it is not a strange word for Chinese people, the development history of electrical bike has gone through decades. And now, it has become the most popular tools for people to go out, the total number of e bike has reached millions of units. Many people refer to driving to work rather than take public transportation, because it is environment-friendly, generally, the buses are filled with passengers, it is inconvenient to buses. Secondly, driving electrical bikes can save lot money, currently, the price of gasoline get more and more expensive, but e bike don’t need any gasoline, you just give it enough power, and the cost of power is rather lower the gasoline’s. Therefore, choose electrical bikes are smart choices. 

Hub motor e bike adopts

Most of electrical bikesuse hub motor to drive the front wheel or the back wheel directly, according to the different output speed, these hub motor can separately cooperate with different specification wheel to drive the vehicles go forward, and the speed can reach to 20km/h. although the molding of these electrical vehicles and the installment position of the battery are different, the drive and control principle is the same, currently, these kinds of electrical vehicles are the main stream in electrical vehicles.

A few e bikes using motor to drive the vehicles, the weight of these e bikes are lighter, but the efficiency of them is lower than those bikes use hub motors. Therefore, many e biked manufacturers give up to use these general motors.

Many special motors baldor motor company provides

Most of the products of baldor motor company are exept from customs examination products, and all of products of baldor have own various patents.therefore, they are very popular at home and abroad.

 Baldor can provide a variety of customized professional motor to meet different industry requirements. For example, washing brush motor which is suitable for food processing and other wet environments; corrosion motor that suitable for harsh environments such as factories and petrochemical plants; agricultural motor which is suitable for outdoor work in the harsh agricultural environment. Other products also including brake motors, electrical motor, all kinds of explosion-proof motors, pump motors, fan motors, two-speed motors, gear motors and so on.

New servo motor that Kollmorgen Company developed

AKM™ Washdown is a type of servo products Kollmorgen brushless Company launched recently, AKM servo motors occupy the leading position of many lines in the market, this servo motor solution of process, food package and medical package has provided more complete operation and maintenance benefit compared those same products from other companies. At the same time, this series product also has better performance and three time higher duality. Thinks to adopting creative coating and ingenious designation, it is helpful to keep the most hygiene sanitation standard during cleaning time.

In a word, AKM Washdown make the development of compact, light, high performance machine has more promising. it is also make a great progress for the development of new efficient motor.

  

The most famous products of Kollmorgen

Kollmorgen is the leading provider of sport control system and fitting in the world. Depend on more than sixty years’ sport control designation and professional development experience, the breakthugh solution Kollmorgen provides with optimum performance, reliability and convenience. The company owns the world’s first class control principle, industrial leading product’s quality and the ability to customize the products, it is commit to creat market competition advantages for electrical bike and motor controller manufactures.

It is worth mentioning that the most famous products of Kollmorgen Company are Kollmorgen brushless motors, they have ready marker at home and abroad, and the price of the also are very competitive.

The most important component of e bike

Controller is the component to control the speed of electrical bike, it is also the core of e bike electrify system, controller play an important role in the machine. Smart controllers also have many kinds of driving models and the whole machine electrify components self-check functions. Controller is the core element of e bike energy management and a variety of control signal disposal.

The most import component ofelectrical bikes is motor, the motor of this e bike determine the performance and the level of the machine. Currently, most of motors e bike manufactures used are rare earth efficiency brush motors, because the price of brushless motor is rather high and the requirements for brushless motor also are high, but brush motor is cheaper. Thus, brush motors are more popular in electrical vehicle industry.

The second largest motor provider in the world

The former name of ‘Baldor motor’ is Baldor, it also known as duba motor before; ‘Baldor motor’ company was established in 1920, it is a America go on public company, in 2007. the company consolidated Reliance Electric and Dodge these two brands and become the top one in north America, it is also the second largest industrial motor provider in the world.

  Baldor motor company has fourteen factories in America and has a servo product factory in Britain, baldor Motor Corporation also has distributors, agents and motor maintenance service centers is more than 50 countries all over the world. the world’s most efficient motor category- Super-E also are its products. The total types of baldor products exceed 5000 brands, including brushless motor, brush motor, servo ,motor, stepper motor ,induction motor and more.

The species of motors

Motor is the general term for different types of motor; in fact, Motor can be broken down into many species.

According to the Power supply, motor can be divided into DC motor and AC motor. According to the structure and working principle, DC motor can be subdivided into brushless DC motors and brush DC motors. The brush DC motor can be divided into permanent magnet DC motor and electromagnetic DC motor; ac motor are divided into single phrase motor and three phrase motor.

Motors play an very important role in our daily life, without motor, our study and working efficiency will decline seriously, although maybe motor is a strange word to most of people, it is use in air-condition, hand dryer, washing machine and many more other industries.

Paragraph. 单击此处进行编辑.

Electric bike

E bike is the abbreviation of electrical bike; I believe that it is not a strange word for Chinese people, the development history of electrical bike has gone through decades. And now, it has become the most popular tools for people to go out, the total number of e bike has reached millions of units. Many people refer to driving to work rather than take public transportation, because it is environment-friendly, generally, the buses are filled with passengers, it is inconvenient to buses. Secondly, driving electrical bikes can save lot money, currently, the price of gasoline get more and more expensive, but e bike don’t need any gasoline, you just give it enough power, and the cost of power is rather lower the gasoline’s. Therefore, choose electrical bikes are smart choices. 

Hub motor e bike adopts

Most of electrical bikesuse hub motor to drive the front wheel or the back wheel directly, according to the different output speed, these hub motor can separately cooperate with different specification wheel to drive the vehicles go forward, and the speed can reach to 20km/h. although the molding of these electrical vehicles and the installment position of the battery are different, the drive and control principle is the same, currently, these kinds of electrical vehicles are the main stream in electrical vehicles.

A few e bikes using motor to drive the vehicles, the weight of these e bikes are lighter, but the efficiency of them is lower than those bikes use hub motors. Therefore, many e biked manufacturers give up to use these general motors.

Many special motors baldor motor company provides

Most of the products of baldor motor company are exept from customs examination products, and all of products of baldor have own various patents.therefore, they are very popular at home and abroad.

 Baldor can provide a variety of customized professional motor to meet different industry requirements. For example, washing brush motor which is suitable for food processing and other wet environments; corrosion motor that suitable for harsh environments such as factories and petrochemical plants; agricultural motor which is suitable for outdoor work in the harsh agricultural environment. Other products also including brake motors, electrical motor, all kinds of explosion-proof motors, pump motors, fan motors, two-speed motors, gear motors and so on.

New servo motor that Kollmorgen Company developed

AKM™ Washdown is a type of servo products Kollmorgen brushless Company launched recently, AKM servo motors occupy the leading position of many lines in the market, this servo motor solution of process, food package and medical package has provided more complete operation and maintenance benefit compared those same products from other companies. At the same time, this series product also has better performance and three time higher duality. Thinks to adopting creative coating and ingenious designation, it is helpful to keep the most hygiene sanitation standard during cleaning time.

In a word, AKM Washdown make the development of compact, light, high performance machine has more promising. it is also make a great progress for the development of new efficient motor.

  

The most famous products of Kollmorgen

Kollmorgen is the leading provider of sport control system and fitting in the world. Depend on more than sixty years’ sport control designation and professional development experience, the breakthugh solution Kollmorgen provides with optimum performance, reliability and convenience. The company owns the world’s first class control principle, industrial leading product’s quality and the ability to customize the products, it is commit to creat market competition advantages for electrical bike and motor controller manufactures.

It is worth mentioning that the most famous products of Kollmorgen Company are Kollmorgen brushless motors, they have ready marker at home and abroad, and the price of the also are very competitive.

The most important component of e bike

Controller is the component to control the speed of electrical bike, it is also the core of e bike electrify system, controller play an important role in the machine. Smart controllers also have many kinds of driving models and the whole machine electrify components self-check functions. Controller is the core element of e bike energy management and a variety of control signal disposal.

The most import component ofelectrical bikes is motor, the motor of this e bike determine the performance and the level of the machine. Currently, most of motors e bike manufactures used are rare earth efficiency brush motors, because the price of brushless motor is rather high and the requirements for brushless motor also are high, but brush motor is cheaper. Thus, brush motors are more popular in electrical vehicle industry.

The second largest motor provider in the world

The former name of ‘Baldor motor’ is Baldor, it also known as duba motor before; ‘Baldor motor’ company was established in 1920, it is a America go on public company, in 2007. the company consolidated Reliance Electric and Dodge these two brands and become the top one in north America, it is also the second largest industrial motor provider in the world.

  Baldor motor company has fourteen factories in America and has a servo product factory in Britain, baldor Motor Corporation also has distributors, agents and motor maintenance service centers is more than 50 countries all over the world. the world’s most efficient motor category- Super-E also are its products. The total types of baldor products exceed 5000 brands, including brushless motor, brush motor, servo ,motor, stepper motor ,induction motor and more.

The species of motors

Motor is the general term for different types of motor; in fact, Motor can be broken down into many species.

According to the Power supply, motor can be divided into DC motor and AC motor. According to the structure and working principle, DC motor can be subdivided into brushless DC motors and brush DC motors. The brush DC motor can be divided into permanent magnet DC motor and electromagnetic DC motor; ac motor are divided into single phrase motor and three phrase motor.

Motors play an very important role in our daily life, without motor, our study and working efficiency will decline seriously, although maybe motor is a strange word to most of people, it is use in air-condition, hand dryer, washing machine and many more other industries.

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                                               EKCW series brushless motor

China Refrigeration Exhibition "best new product" refers to the products that with the principle of independent research and development, with a certain degree of technical innovation and advanced, in line with low-carbon, green, environmentally friendly principles and fully reflects their own technological progress and development. After a rigorous assessment of the TRP layers, EKCW series DC brushless motor fan coil eventual acquire consensus appreciation and was selected as ‘outstanding new products’ for the show.

  EKCW Series DC brushless motor fan coil adopts new patented brushless DC technology which researches by EKCW EUROKLIMAT Group and China Aerospace Science and Engineering Group, realizing the diversification of step less speed control by virtue of leading air treatment technology. In this process, brushless motors play a key role.

                Permanent magnet synchronous AC servo motor technology

With the development of modern industrial right precision, high-speed, high-performance requirements，the traditional motor controller is no longer competent in high requirement occasion , in many demanding real-time, high efficiency occasion, it must use special digital signal processor (DSP) to replace some of the traditional controller function. Especially in the complex control algorithms or optimization algorithms, DSP’s unique ability to quickly calculate the apparent manifestation.

In addition, with the advancement of integrated circuit manufacturing technology and the development of power electronics, AC servo has also been considerable development. A position and velocity measurements was built in AC servo motor encoder, in most cases, the waveform directly out from encoder is irregular.

                                                     Servo motor

It is need system to provide precise position control and speed control in the servo motors system, at the same time, it also asked to fast respond, high speed, turning smooth and stable torque. As for higher requirements System, the control of servo motor is more complex, the system controller, motor drive, position and speed sensing must be  formed into a closed loop control system; as to motor commutation, the current the motor uses a lot of Huo Seoul sensor feedback to achieve commutation, the accuracy of switch Hall sensor is not too high. But new-developed         

AVAGO surpass six-channel commutation optical encoder AEDB-9340 series, it can simply develop the feedback mechanism brushless DC motor (BLDC) servo system closed loop. this machine helps to save significant designation and development of motor manufacturers; and the sensor accuracy of switches is also much higher.

                                      The application of brushless DC motor

With the development of power electronics technology, new permanent magnet materials and the fast computing power of the DSP (digital signal processor), the applications of brushless DC motor is growing popularity. Compared with DC motors, Brushless DC motors has similar high speed performance, it also overcome the commutation spark, low reliability and other defects that DC motors using mechanical reversing device caused.Brushless DC motor with the characteristics of small size, light weight, high efficiency, flexible shape and size, so it is widely used in servo system, CNC machine tools, electric vehicles, household appliances and other various fields, it has become the main direction of modern servo technology.

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