Refrigeration equipment and control method thereof

Abstract

The embodiment of the invention provides refrigeration equipment and a control method of the refrigeration equipment, relates to the technical field of refrigeration devices, and solves the problems that existing refrigeration equipment are placed in a container or transported in a reversed manner or a lateral manner, and an existing oil return preventing compressor is large in size and high in cost in the prior art. The refrigeration equipment comprises a compressor and an evaporator, wherein an air sucking pipe is arranged in the shell of the compressor in a penetrating manner; the air sucking pipe is positioned at one end outside the shell of the compressor and is connected with the evaporator by an air return pipe. The refrigeration equipment also comprises a check valve, wherein the check valve is connected with the air return pipe in series or connected between the air return pipe and the air sucking pipe in series. The refrigeration equipment can be used in refrigerators or refrigeration cabinets.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration device and a control method thereof. Background technique [0002] Today's refrigeration devices (such as refrigerators or freezers) need to be transported from the factory to the user. When transporting and packing, usually due to the compression refrigeration system inside the device, it is not allowed to be placed upside down or sideways, thereby reducing the packing of the product. rate, leading to higher transportation costs. [0003] The compression refrigeration system is a circulation loop system in which a compressor is connected to pressurize the low-temperature and low-pressure vapor refrigerant into high-temperature and high-pressure vapor. A hermetic compressor is usually used in a refrigeration device. The hermetic compressor assembles a compressor and an electric motor into a housing. It is small in size and compact in structure and...

AI Technical Summary

Problems solved by technology

However, since the stop valve is installed inside the compressor, it occupies the internal space of the compressor, which is not conducive to the miniaturization design of the compressor. In addition, in order to meet the requirements of the refrigeration device to be placed upside down or sideways, it is necessary to customize the internal stop valve. compressor, which increases the production cost of the refrigeration device

At the same time, because the part of the suction pipe inside the compressor is a cantilever beam structure with one end fixed and the other end suspended, and the cantilever beam structure cannot provide a large supporting force, so after installing the stop valve at the inner end of the suction pipe, It will increase the load of the cantilever beam and easily cause the suction pipe to break

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