Motor stator structure based on liquid metal encapsulation

Abstract

The invention belongs to the technical field of motor heat dissipation, aims to solve the problem of low heat dissipation efficiency of a motor casing caused by an air gap with a low heat conductivity coefficient between a motor stator core and the casing, and particularly relates to a motor stator structure based on liquid metal encapsulation. Comprising a motor shell, a stator iron core, a first sealing end ring, a second sealing end ring and liquid metal, a plurality of positioning pins are arranged on the inner wall of the motor shell, and a plurality of positioning grooves clamped with the positioning pins in a clearance mode are formed in the outer wall of the stator iron core; the first sealing end ring and the second sealing end ring are arranged at the top and the bottom of the stator core respectively, and the outer walls of the first sealing end ring and the second sealing end ring abut against the inner wall of the motor shell; the bottom of the first sealing end ring, the top of the second sealing end ring, the inner wall of the motor shell and the outer wall of the stator iron core form a closed cavity; the closed cavity is filled with the liquid metal; the heat conduction performance of the motor shell can be effectively improved, the heat dissipation efficiency of the motor shell is enhanced, and meanwhile normal, safe and stable operation of a motor is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of motor heat dissipation, and in particular relates to a motor stator structure based on liquid metal potting. Background technique [0002] As one of the most important power equipment in the field of industrial production, motors are widely used in industrial production, transportation, aerospace, precision machining and all aspects of production and life. The heat generated by the loss during the operation of the motor needs to be dissipated by the motor casing. The motor stator core and the casing realize heat transfer through contact heat transfer. Therefore, the tightness of the contact between the motor stator core and the casing will directly affect The cooling effect of the motor. [0003] In the stator manufacturing process of small and medium-sized motors, shrink fit or hydraulic pressure are usually used to achieve interference fit between the stator core and the casing, so as to ensure a high ...

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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of low heat dissipation efficiency of the motor casing due to the existence of an air gap with a low thermal conductivity between the motor stator core and the casing, the present invention provides a liquid metal based The potted motor stator structure includes a motor casing, a stator core, a first sealing end ring, a second sealing end ring and liquid metal, the inner wall of the motor casing is provided with a plurality of positioning pins, and the outer wall of the stator core A plurality of positioning grooves are provided, and the plurality of positioning grooves are clearance-engaged with the plurality of positioning pins;

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