Whole-pitch motor stator

Abstract

The invention provides a whole-pitch motor stator, which comprises an iron core and a stator winding wound on the iron core, and is characterized in that winding coils wound in the same stator slot belong to the same phase and are arranged in the same stator slot, a fourth layer and a second layer are wound by a first winding coil, and a first layer and a third layer are wound by a second windingcoil in the same stator slot; the two neutral point connecting lines in the same phase are connected in parallel, the structure is compact, the end height of the winding is reduced, the size of the motor is reduced without changing the power, the power is large, the size is relatively small, in addition, the selection range of voltage and current can be expanded by adopting the six-phase winding,and the stator is suitable for various controllers. Therefore, the performance and the cost of the motor system are optimized, the efficiency and the torque density of the motor can be improved, and the stator has the characteristics of strong fault-tolerant capability and high reliability.

Description

technical field [0001] The invention relates to an internal part of a motor, in particular to a full-pitch motor stator. Background technique [0002] With the rapid development of automotive technology, especially electric vehicle technology, the power requirements for automotive motors are also increasing, and the increase in power will inevitably lead to an increase in the volume of the motor; There are many, and the installation location provided for the motor is becoming narrower and more crowded. In the limited space, the power of the existing motor can no longer meet the demand. Therefore, the contradiction between the volume and power of the motor has become a technology for high-power research and development of the motor. problem. [0003] The Chinese utility model patent with the publication number CN205453323U discloses a motor stator using flat copper wires. By using flat copper wires instead of traditional round copper wires, the slot fill rate of the motor st...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of automotive technology, especially electric vehicle technology, the power requirements for automotive motors are also increasing, and the increase in power will inevitably lead to an increase in the volume of the motor; There are many, and the installation location provided for the motor is becoming narrower and more crowded. In the limited space, the power of the existing motor can no longer meet the demand. Therefore, the contradiction between the volume and power of the motor has become a technology for high-power research and development of the motor. problem

[0003] The Chinese utility model patent with the publication number CN205453323U discloses a motor stator using flat copper wires. By using flat copper wires instead of traditional round copper wires, the slot fill rate of the motor stator is greatly improved, and the structure is compact after winding. And the output power is high, which can solve the contradiction between the volume and power of the motor to a certain extent, but it still needs further improvement to meet more vehicle installation requirements

At the same time, since the stator of the motor uses a three-phase winding, the selection range of voltage and current is relatively narrow, and the fault tolerance rate and reliability are relatively low.

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