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Diffusion end cover and motor

A technology of end caps and motor stators, used in electromechanical devices, electrical components, electric components, etc., can solve the problems of increased total flow, waste of total flow, excessive flow, etc., to reduce flow pressure loss, reduce medium flow speed, improve The effect of uniformity

Pending Publication Date: 2022-04-22
湖南中车尚驱电气有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the high-temperature point meet the cooling medium flow rate and flow rate required by the temperature rise limit, the total flow rate at the inlet needs to be increased, resulting in excessive flow at other locations and a waste of the total flow rate

Method used

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  • Diffusion end cover and motor
  • Diffusion end cover and motor
  • Diffusion end cover and motor

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Effect test

Embodiment Construction

[0032] The core of the present invention is to provide a diffuser end cover. The disc-shaped airflow channel increases the internal airflow space, effectively reduces the flow velocity of the medium in the circumferential direction, distributes the airflow evenly, and makes the cooling effect in all places in the circumferential direction more uniform.

[0033] In order for those skilled in the art to better understand the technical solution of the present invention, the diffuser end cover and the motor of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] The diffuser end cover involved in the present invention is used for fixed docking with the motor stator shell, the diffuser end cover is fixed on one end of the motor stator shell, and the other end of the motor stator shell is fixed by the other end cover to form the entire motor shell structure.

[0035] Such as Figure 2A Sho...

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Abstract

The invention discloses a diffusion end cover which is used for being in fixed butt joint with a motor stator shell, a disc-shaped airflow channel is formed between the end face of an inner cover body and the end face of an outer cover body, the disc-shaped airflow channel is of a disc-shaped cavity structure, and the disc-shaped airflow channel provides diffusion space for inflow airflow. Airflow flowing in from the air inlet can enter the disc-shaped airflow channel, move in the circumferential direction and uniformly flow to all the ventilation holes, the internal airflow space is increased through the disc-shaped airflow channel, the static pressure of the airflow flowing into the disc-shaped airflow channel from the air inlet is increased, the flowing speed of a medium in the circumferential direction is effectively reduced, and the efficiency is improved. Meanwhile, the flow pressure loss is reduced, the flow resistance is reduced, and the cooling effect of each position in the circumferential direction of the motor is uniform and consistent. The motor provided by the invention can realize the same technical effect.

Description

technical field [0001] The invention relates to the technical field of motors, and further relates to a diffuser end cover. Furthermore, the invention also relates to an electric machine. Background technique [0002] In the motor design work, the temperature rise of the motor is a problem that needs special attention. The temperature rise directly affects the selection of motor insulation materials, rotor permanent magnet materials, bearings, grease (or oil), etc. The temperature rise will lead to higher materials. Cost; Excessive local temperature rise will also lead to shortened service life or even failure of insulating materials. Once the temperature rise of the permanent magnet motor is too high, the permanent magnet will appear irreversible demagnetization phenomenon, resulting in the scrapping of the motor; the temperature rise of the motor stator and rotor will also cause It will cause the bearing temperature to be too high, and even the bearing failure will occur,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/20H02K5/04H02K1/20H02K9/02
CPCH02K5/207H02K5/04H02K1/20H02K9/02
Inventor 晏才松丰帆郑国丽张道禄曾纯李会兰
Owner 湖南中车尚驱电气有限公司
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