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a motor

A technology of motor shaft and motor casing, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of disassembly of the closed space of the bearing hole, difficulty, poor heat dissipation of the blind hole motor end cover, etc., and achieves favorable heat dissipation and air pressure balance. Effect

Active Publication Date: 2022-07-26
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention discloses a motor, which is used to solve the problem that the existing motor uses a blind hole motor end cover to dissipate heat, and a closed space is formed inside the bearing hole, which makes it difficult to disassemble.

Method used

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Embodiment 1

[0034] In this embodiment, a motor such as image 3 and Figure 4 shown, including the motor housing 10 ( image 3 and Figure 4 not shown, refer to figure 1 ), a rear end cover 20 and a motor shaft 30, the rear end of the motor housing 10 is provided with an opening, the rear end cover 20 is fixedly mounted on the rear end of the motor housing 10 and blocks the rear opening of the motor housing 10 , the rear end cover 20 is provided with a bearing hole 21 on the side facing the motor housing 10, the bottom of the bearing hole 21 is provided with a groove 22 extending axially along the motor housing 10, and the side wall of the groove 22 There is a ventilation hole 23 communicating with the inner space of the motor housing 10; one end of the motor shaft 30 passes through the motor housing 10 and is installed in the bearing hole 21 through a bearing 40, and the motor shaft 30 is located in the bearing The inside of one side of the hole 21 is provided with a guide cavity a. ...

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Abstract

The invention discloses a motor, which belongs to the technical field of the motor, and solves the problem that the existing motor adopts a blind hole motor end cover, which is not good for heat dissipation, and a closed space is formed inside the bearing hole, which makes disassembly difficult. The present invention includes a motor casing, the rear end of which is provided with an opening; a rear end cover is fixedly mounted on the rear end of the motor casing and blocks the rear end opening of the motor casing, and the rear end cover faces one side of the motor casing A bearing hole is provided, the bottom of the bearing hole is provided with a groove extending along the axial direction of the motor casing, and the side wall of the groove is provided with a ventilation hole communicating with the inner space of the motor casing; one end of the motor shaft passes through The motor shaft is installed in the bearing hole through the motor housing and through the bearing, and a guide cavity is provided inside the motor shaft on one side of the bearing hole. In the invention, the ventilation holes are arranged in the groove, which can solve the problem of unbalanced air pressure inside and outside the bearing chamber when the bearing is installed, and at the same time, the guide vane can solve the problem of heat dissipation of the bearing.

Description

technical field [0001] The present invention relates to the field of motors, and in particular, to a motor. Background technique [0002] like figure 1 As shown, the motor end cover is a device that supports the rotation of the motor rotor, the rotor bearing is installed in the bearing hole of the end cover, the front end cover 24 is fixedly connected with the front end of the motor casing 10, and the rear end cover 20 is fixedly connected with the rear end of the motor casing 10. The bearing hole of the front end cover 24 and the bearing hole of the rear end cover 20 of the conventional motor are both non-sealed structures. However, in some special applications, in order to improve the waterproof and dustproof level of the motor, the bearing hole of the rear end cover is a blind hole structure, and the cooling fan blade is no longer installed on the side of the rear end cover of the motor. Common blind hole rear cover such as figure 2 As shown in the figure, when the be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/20H02K9/04H02K9/06H02K5/04H02K5/18H02K5/16
CPCH02K5/207H02K9/04H02K9/06H02K5/04H02K5/18H02K5/163H02K2213/03
Inventor 张健钟镇业童童廖克亮
Owner GREE ELECTRIC APPLIANCES INC