Automatic identifying method for frequency-conversion and constant-speed compressor and refrigerator

Abstract

The invention discloses an automatic identifying method for a frequency-conversion and constant-speed compressor and a refrigerator. A detection circuit is arranged on a main control board and is divided. A circuit on a frequency conversion board is used for conducting switch-on control on the detection circuit. Consequently, whether the frequency conversion board is plugged on the main control board can be judged through judging whether a signal circuit of the detection circuit is switched on or not, so that whether a selected compressor is a frequency-conversion compressor can be further judged, and the purpose that the main control board automatically identifies the frequency-conversion and constant-speed compressor is achieved. According to the identified type of the compressor, the main control board can selectively start a drive circuit used for driving compressors of different types to operate, so that whole machine power consumption is remarkably reduced, and the design purposes of saving energy and reducing consumption are further achieved. Meanwhile, the main control board can properly configure refrigerating reference in a compressor control procedure according to the automatically-identified compressor types, so that the optimization of compressor refrigerating efficiency can be achieved.

Description

technical field [0001] The invention belongs to the technical field of refrigerating equipment, and in particular relates to a method for automatically identifying the type of a compressor used in refrigerating equipment and a refrigerator designed by adopting the method for automatically identifying the compressor. Background technique [0002] With the rapid development of refrigerator technology and the deepening of energy-saving and emission reduction goals, refrigerator products have rapidly developed from fixed-frequency refrigerators in the past to today's inverter refrigerators. Inverter refrigerators not only improve the cooling efficiency, but also achieve a significant reduction in the power consumption of the whole machine and a significant improvement in the temperature control effect. The refrigeration principle of the fixed-frequency refrigerator and the inverter refrigerator are the same, the only difference is that the type of compressor used is different: t...

AI Technical Summary

Problems solved by technology

This design method leads to an increase in the variety of materials, and the main control board cannot be universalized

The second design method is that the fixed-speed compressor and the variable-frequency compressor share a main control board. Although the types of materials are reduced and the versatility of the main control board is improved, the existing general-purpose main control board cannot automatically identify the required drive. What type of compressor is it? After the refrigerator is started, the drive circuit on the main control board for driving the fixed-speed compressor and the drive circuit for driving the variable-frequency compressor run at the same time, resulting in additional power loss, resulting in unnecessary waste of energy

In addition, this general-purpose main control board design method controls the refrigeration parameters of the refrigerator's start and stop points to be consistent, and cannot be automatically adjusted according to the type of compressor to be driven, thus seriously affecting the refrigeration efficiency of refrigerator products

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