Motor cooling device and motor

Abstract

The invention provides a motor cooling device and a motor. The motor cooling device comprises the following parts of a plurality of stator vent holes formed in a stator core along an axial direction of the stator core; a first mounting member and a second mounting member respectively coupled to the both axial sides of the stator core and respectively formed with a plurality of first vent holes anda plurality of second vent holes along the axial direction; and a bracket comprising a main body and first and second support portions protruding radially outward from both sides of the main body, wherein the main body is formed with a plurality of bracket vent holes, the first mounting member and the second mounting member are respectively supported on the first support portion and the second support portion, the first vent hole and the second vent hole respectively form a first vent passage and a second vent passage that are independent of each other with the corresponding stator vent holes, and the flows of the air flowing through the first vent passage and the second vent passage are reciprocal and flow out to the outside through the bracket vent holes. According to the motor coolingdevice provided by the invention, the axial temperature difference of the motor can be reduced.

Description

technical field [0001] The present invention relates to the technical field of motors, in particular to a motor cooling device and a motor. Background technique [0002] At present, the ventilation and cooling methods of motors are mainly divided into axial ventilation, radial ventilation and axial-radial mixed ventilation in terms of ventilation paths. Comparatively speaking, the advantage of axial ventilation is that under certain conditions such as the outer diameter, speed, and power of the motor, the use of axial ventilation can shorten the axial length of the motor, thereby reducing the weight and cost of the motor, so it has been widely used. Applications. [0003] figure 1 A schematic diagram showing a partial structure of an existing motor cooling device, wherein, for the convenience of showing the ventilation holes 12a, the stator coil 15 on the stator teeth of the stator core 11 is divided into two parts, and only the stator core is shown 11 of the two stator t...

AI Technical Summary

Problems solved by technology

[0010] Therefore, the object of the present invention is to provide a motor cooling device and a motor to overcome the problem of uneven temperature distribution in the axial direction of the motor during cooling and the risk of demagnetization of the magnetic steel in the cooling device in the prior art, which leads to a decrease in the reliability of the motor Defects

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