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Electric driving motor manufacturer

Suzhou Lego Motors Co.,Ltd
Over 500 employees
Over 80 professionals 
Located in Suzhou, about 100 km distance to Shanghai
Over 80 patents
Three R&D centers: Suzhou, Guangzhou and Beijing.
The sales income in 2018 : RMB 650 million.
Our proudcts specification: rated power 20~250Kw, peak torque 100Nm~4800Nm.
Our sales volume: More than 30,000 sets electric vehicle motors per year.(New plant with 300,000 sets productivity)
Our product superiority: mature experience,  high cost effective.
Main customer: YUTONG, KINGLONG, DONGFENG, FAW, etc.

 yulongzhu@lego-motors.com
www.lego-motors.com

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The general tests of electric motors：2

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Comparison of structure motor with internal rotor and external rotor

In general, the stator of the motor is on the outside and the rotor is on the inside. In a conventional brush dc motor, the stator field is on the outside and the rotor armature is on the inside. Brushless dc motor appeared, so that the rotating armature from the inside to the outside, from the rotor into a stator; And the original stationary stator permanent magnet went inside, and from the stator become the rotor. This kind of structure is called an "internal rotor structure". In practical use, sometimes in order to meet the special technical requirements of some electromechanical, the motor stator armature is made inside, and the rotor with permanent magnet is made outside. We call this structure "external rotor structure", or "internal stator structure". In the design of brushless dc motor, the external rotor structure and the internal rotor structure have their own advantages and disadvantages. The differences in motor characteristics between the
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Traction motor for electric vehicle： induction motor, permanent magnet motor, who is the future direction?

In the era of fuel cars, we often hear the battle between natural inspirations and turbocharged engines. And in the era of electric cars, there is also a clear debate between electric motors. After the test of the market, there are two kinds of mainstream electric motors on the market at present, one is induction motor (also known as asynchronous ac motor), the other is permanent magnet motor. Induction motor is a kind of motor which has the rotor rotation powered by magnetic torque created by the physical interaction of stator winding magentic field and the induction current generated rotor magnetic field. Tesla Model S and Model X are representatives of induction motor applications. The permanent magnet motor mainly refers to the permanent magnet synchronous motor, and the biggest difference with the induction motor in structure is that the rotor is permanent magnet structure, rather than wound by the electric coil. Which is better, the induction motor or the permanent mag
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