A self-radiating rare earth permanent magnet synchronous motor

Abstract

The invention discloses a self-radiating rare-earth permanent magnet synchronous motor, which comprises a machine compartment. A front machine cover and a rear machine cover are arranged at two ends of the machine compartment respectively, and a filter is provided at the end of the front machine cover far away from the machine compartment. Assemblies, the front machine cover is provided with a bearing B at the center of the end far away from the machine compartment, the end of the inner wall of the machine compartment far away from the front machine cover is evenly provided with connecting rods, and the ends of the connecting rods that are close to each other are jointly provided with bearings A . In the present invention, through the cooperation of the front machine cover, machine compartment, auxiliary components, fixing components and rear machine cover, when the motor is disassembled for maintenance, it is not necessary to remove too many fixing screws, and when installing the front machine cover and the rear machine cover , no need to manually support the front cover and the rear cover to keep the screws aligned with the screw holes, just insert the insert rod into the slot, which greatly improves the convenience of dismounting or installing the motor, and the auxiliary components can further improve The stability of the connection between the front cover and the rear cover and the cabin.

Description

Technical field [0001] The present invention relates to the field of AC motor, in particular a self-refined rare earth permanent magnet synchronous motor. Background technique [0002] The AC permanent magnet synchronous motor is increasingly attracted to people's attention due to its small size, light weight and efficient energy saving, and the starting moment and overload capabilities of rare earth permanent magnet synchronous motors are strong than ordinary synchronous motors. Used in industrial production. [0003] During the use of the rare earth permanent magnet synchronous motor, most of the air in the outside is to cool the motor inside the motor through the gap connected to the front and rear cover, but the gap size between the chair and the front and rear cover is limited. And now there is only one set of fans on the motor shaft inside the synchronous motor, which cannot improve the self-refining effect of the rare earth permanent magnet synchronous motor; and the curre...

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Problems solved by technology

[0003] During the use of the current rare earth permanent magnet synchronous motor, most of the outside air enters the motor through the gap between the machine compartment and the front and rear covers to cool down the inside of the motor, but the gap between the machine compartment and the front and rear covers is limited. , and currently only a set of fans are installed on the motor shaft inside the synchronous motor, it is impossible to improve the self-heating effect of the rare earth permanent magnet synchronous motor; However, most of the traditional heat sinks are directly welded on the outside of the machine compartment. At this time, the effect of the heat sink will be greatly reduced, so that the heat dissipation effect of the synchronous motor cannot be further improved; while the current rare earth permanent magnet synchronous motor is for It is convenient for air to flow inside the motor, and there are gaps and through holes on purpose. Although it is convenient for air flow, when the motor is not in use, the dust in the external environment will slowly enter the interior of the machine compartment with the air flow and cover it. On the internal components of the motor, it affects the actual effect of the subsequent use of the motor; at the same time, the front cover and the rear cover of the current rare earth permanent magnet synchronous motor are fixedly connected to the machine compartment through multiple sets of fixing screws, which is very difficult to disassemble and install. It is inconvenient, and it is impossible to further improve the stability of the connection between the front and rear machine covers and the machine compartment

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