Company Introduction
Part of products list
| Item |
55kW |
80kW |
160kW |
150kW*2 |
230kW |
250kW |
|
| Type |
PMSM |
PMSM |
PMSM |
PMSM |
PMSM |
PMSM |
|
| Peak power/Peak torque |
55kW/140Nm |
80kW/160Nm |
160kW/310Nm |
150kW*2/230Nm*2 |
230kW/400Nm |
250kW/370Nm |
|
| Rate power/Rated torque |
25kW/64Nm |
30/kW/60Nm |
70kW/136Nm |
50kW*2/77Nm*2 |
75kW/130Nm |
78kW/115Nm |
|
| Peak speed |
12600rpm |
12600rpm |
16000rpm |
18000rpm |
17000rpm |
18500rpm |
|
| Winding Type |
H pin |
H pin |
H pin |
H pin |
X pin |
X pin |
|
| number of poles and slots |
6/54 |
6/54 |
8/48 |
8/72 |
6/54 |
6/54 |
|
| size of stator |
∅160*85 |
∅160*98 |
∅184*121 |
∅220*60 |
∅220*101 |
∅220*104 |
|
| cooling type |
Water |
Water |
Oil |
Oil |
Oil |
Oil |
|
Production Equipment and Process
Test ability
Patent and Qualification
Here is a detailed description of the stator core of a new - energy vehicle motor:
Structure and Composition
The stator core is an important component of the motor in new - energy vehicles, mainly composed of laminated silicon steel sheets. These silicon steel sheets are usually 0.35 - 0.5mm thick and have an insulating layer on the surface6. They are punched and laminated to form the stator core6. The inner circle of the core is punched with evenly distributed slots to embed the stator winding6. This laminated structure is designed to reduce eddy - current losses and enhance magnetic conductivity.
Material Selection
The material of the stator core is usually silicon steel sheet, which is an alloy material mainly composed of silicon, carbon, and iron2. It has excellent magnetic conductivity and corrosion - resistance performance2. High - permeability silicon steel sheets are often used in new - energy vehicle motors to improve the efficiency and power density of the motor2. In addition, with the development of technology, new materials such as amorphous alloys and nanocrystalline alloys are emerging, which have higher magnetic conductivity and better corrosion - resistance performance and are expected to be more widely used in the future2.
Function and Principle
The stator core plays a crucial role in the operation of new - energy vehicle motors. When three - phase alternating current is introduced into the three - phase windings of the stator, according to the law of electromagnetic induction, a changing magnetic flux will be generated in the stator windings. Due to the phase difference of the three - phase current in time and the difference in the spatial arrangement of the windings, these magnetic fluxes interact with each other, thus forming a rotating magnetic field in the space between the stator and the rotor, which rotates at a synchronous speed. This rotating magnetic field drives the rotor to rotate, converting electrical energy into mechanical energy and providing power for the movement of new - energy vehicles.
Manufacturing Process
The manufacturing process of the stator core includes several steps. First, the silicon steel sheets are punched into the required shape and size, and then they are stacked and fixed together. During the stacking process, strict alignment and fixation are required to ensure the accuracy and integrity of the core structure. Next, the stator winding is embedded in the slots of the stator core according to a specific pattern. Finally, the assembled stator core is inspected and tested to ensure that it meets the required performance standards.
Design Considerations
In the design of the stator core for new - energy vehicle motors, factors such as the size, shape, and number of slots need to be carefully considered according to the specific requirements of the motor. These factors affect the performance of the motor, such as its efficiency, power density, and torque output. At the same time, the design also needs to consider issues such as heat dissipation and vibration resistance to ensure the reliable operation of the motor under various working conditions. In addition, with the development of new - energy vehicle technology, the requirements for the miniaturization, lightweight, and high - efficiency of motors are constantly increasing, which also poses higher challenges to the design of stator cores.
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