Stator core, stator, motor, fixed-speed variable-speed compressor and refrigeration device
By optimizing the stator core and stator winding structure, increasing the cross-sectional area for magnetic flux flow, and combining this with constant-frequency variable-speed compressor technology, the problem of low efficiency in constant-frequency compressor motors has been solved, resulting in reduced power consumption and noise, and improved operating efficiency of refrigeration equipment.
CN122456789APending Publication Date: 2026-07-24QINDAO HAIER REFRIGERATOR CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINDAO HAIER REFRIGERATOR CO LTD
- Filing Date
- 2025-01-24
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
In existing refrigeration equipment, the motor efficiency of fixed-frequency compressors is relatively low, making it difficult to match different operating conditions, resulting in high power consumption and high noise.
Method used
By optimizing the structure of the stator core and stator windings, increasing the cross-sectional area of magnetic flux, reducing the degree of magnetic field saturation, and adopting constant frequency variable speed compressor technology, multiple speeds can be achieved under constant input voltage and frequency, adapting to high load and low load conditions.
Benefits of technology
It improves motor efficiency, reduces power consumption and noise, and enhances the operating efficiency and comfort of refrigeration equipment.
✦ Generated by Eureka AI based on patent content.
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Figure CN122456789A_ABST
Abstract
The application discloses a stator core, a stator, a motor, a constant-frequency variable-speed compressor and a refrigeration device, and belongs to the refrigeration field. A plurality of stator tooth portions of the stator core are arranged in a circumferential interval along an inner circumferential wall of a stator yoke portion of the stator core, a stator slot is formed between adjacent stator tooth portions, sizes of the plurality of stator slots are same, and the sizes satisfy 0.3<=W / (R-r)<=0.9, wherein W is a slot depth of the stator slot, R is a radius of an inscribed circle of an outer wall of the stator core, and r is a stator inner diameter. The stator core of the application can increase a cross-sectional area of a magnetic flux circulation of the stator core, reduce a magnetic field saturation degree, and thus improve motor efficiency by setting a proportional relationship between the stator slot and the stator yoke portion.
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