Compressor and refrigeration apparatus

By fixing the stator and main housing with a clearance fit and an adhesive layer in the glue pot, the performance degradation caused by the high brittleness of amorphous alloy materials in the compressor due to compression is solved, thus optimizing motor efficiency and noise and improving compressor energy efficiency.

CN121216761BActive Publication Date: 2026-03-03GUANGDONG MEIZHI COMPRESSOR
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Patent Information

Application Number
CN202511758275.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-03-03
Estimated Expiration
2045-11-27

AI Technical Summary

Technical Problem

Amorphous alloy stator cores in compressors are brittle and prone to compression during interference fits, leading to performance degradation and making it difficult to improve compressor efficiency.

Method used

The stator and main housing are fixed by a clearance fit and an adhesive layer with a potting groove. The traditional interference fit is replaced by glue filling, which ensures the stator holding force and avoids mechanical stress damage. The motor performance is optimized by combining the amount of glue, the performance of permanent magnets and the size relationship of stator.

Benefits of technology

It improves motor efficiency, reduces noise, and achieves a balance between high efficiency, low noise, and high reliability, thereby enhancing the compressor's energy efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121216761B_ABST
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Abstract

The application discloses a compressor and a refrigeration device, and relates to the technical field of refrigeration devices, wherein the compressor comprises a main shell, a motor and a pump body assembly, the motor and the pump body assembly are arranged in the main shell, a stator is in clearance fit with the main shell, a rotor is internally provided with a permanent magnet, the residual magnetism induction intensity of the permanent magnet is Br, the pole number of the rotor is p, the minimum width of a tooth portion of the stator in the circumferential direction is W, a plurality of glue filling grooves are arranged in the circumferential direction at the outer edge of the stator, the glue filling grooves are arranged in the axial direction of the stator, the glue filling grooves are filled with an adhesive layer, the sum of the cross-sectional areas of all the glue filling grooves in the vertical direction of the stator is S2, and the cross-sectional area of the stator in the vertical direction of the stator is S1. The technical scheme provided by the application sets the glue filling grooves in the stator, connects the stator and the main shell through glue, and constrains the related parameters to meet the relationship, so that the stator core of the amorphous alloy material is prevented from being damaged due to extrusion, and the efficiency of the compressor is improved.
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Citation Information

Patent Citations

  • Motor

    CN223109750U

  • KR1025238720000B1