Mechanical type frequency conversion refrigerator and refrigerating circuit for mechanical type refrigerator

Abstract

The invention provides a mechanical type frequency conversion refrigerator and a refrigerating circuit for a mechanical type refrigerator. The refrigerating circuit for the mechanical type refrigerator comprises an evaporator, a condenser, a one-way valve and an electromagnetic valve which are connected together, and also comprises a self-regulating frequency conversion compressor, wherein the self-regulating frequency conversion compressor comprises a compressor main body and a frequency conversion control device, the frequency conversion control device is used for controlling the compressor main body to operate according to a current and pressure of the compressor main body; an inlet of the compressor main body is connected with the evaporator, and an outlet of the compressor main body is connected with the condenser through the one-way valve. Due to the adoption of the self-regulating frequency conversion compressor, when the pressure of the outlet of the compressor main body is larger, the compressor main body is controlled through the self-regulating frequency conversion compressor to be in a large-torque operation state, thus the operation frequency of the compressor is automatically regulated by the compressor main body when the outside environment changes, for example, more hot foods are placed or a door of the refrigerator is opened frequently, thus a frequency conversion compressor of the mechanical type energy-saving frequency is applied.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a refrigeration circuit for a mechanical refrigerator and a mechanical frequency conversion refrigerator. Background technique [0002] At present, the refrigerators commonly used by people are divided into electric-controlled refrigerators and mechanical refrigerators. Electric-controlled refrigerators automatically control the operation of the refrigerator through the electric control board in the refrigerator, while mechanical refrigerators control the compressor in the refrigerator through a mechanical thermostat. start and stop. A mechanical refrigerator in the prior art generally includes a constant speed compressor, an evaporator, a capillary tube, a filter drier and a condenser. The inlet of the fixed-speed compressor is connected to the evaporator, the outlet of the fixed-speed compressor is connected to the condenser, and a capillary tube and a dry filter are arr...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a refrigeration circuit for a mechanical refrigerator and a mechanical frequency conversion refrigerator, which are used to solve the defects of complex structure and high cost of the mechanical refrigerator in the prior art, and realize the simplification of the structure of the mechanical refrigerator through the refrigeration circuit for the mechanical refrigerator , and reduce the cost of mechanical refrigerators

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