Motor stator structure with auxiliary cooling teeth, and motor

Abstract

The invention discloses a motor stator structure with auxiliary cooling teeth, and a motor. The motor stator structure comprises a stator yoke part, stator main teeth, cooling auxiliary teeth, a stator winding and a stator groove inner cavity; each stator main tooth comprise a left main tooth and a right main tooth; the stator groove inner cavity comprises a left cavity and a right cavity; the cooling auxiliary teeth are connected with the stator yoke part through the groove bottom; the stator main teeth and the cooling auxiliary teeth are connected through the stator yoke part and are approximately in an m shape; the height of the main teeth is higher than that of the auxiliary teeth; the auxiliary teeth adopt a proper height so as to achieve an ideal heat dissipation effect, and meanwhile, the electromagnetic performance of the motor cannot be weakened; the left and right main teeth and the auxiliary teeth are connected with the formed left inner cavity and right inner cavity of thestator through the stator yoke part respectively; an insulating layer wraps the outside of the stator winding, and the stator winding is arranged in the stator groove inner cavity. By virtue of the auxiliary teeth, the cooling area of the stator winding is enlarged and the temperature gradient of a conductor in the groove is reduced; and meanwhile, the structure is simple, and the heat dissipationeffect is high.

Description

technical field [0001] The invention belongs to the field of motor structure design, and more specifically relates to a motor stator structure with auxiliary cooling teeth and a motor. Background technique [0002] Motors are used more and more widely in various fields. In order to meet the development requirements of high efficiency, energy saving and emission reduction, the research on the problems of high energy consumption and low efficiency of motors has been deepened, which makes the motor show a trend of developing towards high torque density. All motors are limited by materials (including copper, insulating materials, and magnetic materials), mainly electromagnetic and thermal, which quantify the maximum torque that can be achieved. Therefore, in order to increase the torque density of the motor in the design, the current density is usually increased. However, the resulting increase in the copper loss of the coil will easily lead to excessive temperature of the motor...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a motor stator structure and motor with auxiliary heat dissipation teeth, thereby solving the problem of improving the insulation level of the motor, increasing the external cooling air volume, and increasing the internal cooling channel. There are technical problems such as high cost, complex structure and limited heat dissipation effect

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