Ventilation cooling structure of permanent magnet motor
A technology of ventilation cooling, permanent magnet motor, applied in the direction of magnetic circuit shape/style/structure, cooling/ventilation device, electrical components, etc., can solve problems such as poor motor cooling effect
Inactive Publication Date: 2021-06-25
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0005] The embodiment of the present invention provides a permanent magnet motor ventilation cooling structure to solve the technical problem in the prior art that the air only flows in the cooling channel and the cooling effect of the motor is not good
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[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0046] In the present invention, unless otherwise specified, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection or...
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The invention provides a ventilation cooling structure of a permanent magnet motor. The ventilation cooling structure comprises a shell, a first end cover, a second end cover, a stator and an air driving device. An installation channel is defined by the shell, and the first end cover and the second end cover are installed at the two ends of the installation channel respectively. The stator is arranged on the inner wall of the shell, a first air channel parallel to the center line of the installation channel is arranged on the stator, a second air channel parallel to the center line of the installation channel is arranged between the inner wall and the outer wall of the shell, a first opening is formed in the outer wall of the shell, and a second opening is formed in the first end cover. The two ends of the first air channel and the second air channel are communicated with the first opening and the second opening correspondingly, and the air driving device drives air to flow in the first air channel and the second air channel. Compared with the mode that air only flows in a single cooling channel, the ventilation cooling structure enables air to flow in the first air channel and the second air channel at the same time, and therefore the cooling effect of the motor is improved.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a ventilation and cooling structure of a permanent magnet motor. Background technique [0002] The permanent magnet motor includes a housing, a stator, a rotor and a main shaft. The stator is arranged on the inner wall of the housing, and the rotor is connected to the main shaft, and the rotor is arranged in the housing; when electrified, the rotor rotates, thereby driving the main shaft to rotate. [0003] In the related art, in order to avoid the accumulation of heat generated when the motor is working, resulting in excessive temperature, a cooling air passage is often provided between the inner wall and the outer wall of the casing, and the first opening of the cooling air passage is arranged on the outer wall of the casing. The second opening of the cooling channel is set at the front end of the housing along the direction parallel to the axis of the main shaft; a ventilation ...
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IPC IPC(8): H02K5/20H02K1/20H02K9/04H02K9/06H02K5/10H02K5/02
CPCH02K1/20H02K5/02H02K5/10H02K5/20H02K9/04H02K9/06H02K9/18
Inventor 贾喜勤许勇李广刘永强霍向飞姬春霞张婷
Owner CRRC YONGJI ELECTRIC CO LTD