Control method of fixed-frequency compressor and control method of refrigeration equipment

By controlling the output current of the main control board, adjusting the start and operation current of the fixed frequency compressor, the secondary coil and other components are cancelled, the structural simplicity and cost reduction of the fixed frequency compressor are achieved, and the complexity of the existing fixed frequency compressor is solved. Sex and high cost issues.

CN119178263APending Publication Date: 2024-12-24QINDAO HAIER REFRIGERATOR CO LTD +2
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Patent Information

Application Number
CN202310751067.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-06-21
Publication Date
2024-12-24

AI Technical Summary

Technical Problem

The internal structure of the existing fixed frequency compressor is complex and costly, with components such as sub-coils, PTC starters and thermal protectors, which affects the simplicity and economicality of the equipment.

Method used

By controlling the output current of the main control board electrically connected to the fixed frequency compressor, adjusting the start current and operating current, canceling the secondary coil, PTC starter and thermal protector, a single coil fixed speed operation is achieved.

Benefits of technology

The structure of the fixed frequency compressor is simplified, the cost is reduced, and the smooth operation is achieved by controlling the current, avoiding unnecessary power consumption.

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Abstract

The invention provides a control method of a fixed-frequency compressor and a control method of refrigeration equipment. The control method of the fixed-frequency compressor comprises the steps that the working current of the fixed-frequency compressor is controlled by controlling the output current of a main control board electrically connected with the fixed-frequency compressor; compared with an existing fixed-frequency compressor, the fixed-frequency compressor has the advantages that the current of the fixed-frequency compressor does not need to be adjusted through two coils, so that an auxiliary coil, a PTC starter, a thermal protector and a capacitor in the existing fixed-frequency compressor are omitted, only a set of coils electrically connected with the main control board need to be arranged, the fixed-frequency compressor runs at a fixed speed through a single coil, and the fixed-frequency compressor can run at a fixed speed. The structure is simple and the cost is low.
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