A refrigeration and freezing device

By using the circulation pipeline and heat storage body of the defrost device in the refrigeration and freezing device, the heat of the compressor cabin is directly used for defrosting, which solves the problems of low defrosting efficiency and high energy consumption and achieves efficient and stable defrosting effect.

CN115597285BActive Publication Date: 2025-09-09QINDAO HAIER REFRIGERATOR CO LTD +1
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Patent Information

Application Number
CN202211230015.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-08
Publication Date
2025-09-09
Estimated Expiration
2042-10-08

AI Technical Summary

Technical Problem

Existing air-cooled frost-free refrigerators have low defrosting efficiency and high energy consumption, large heat loss during heat transfer, and a heat pipe type heat storage defrosting mechanism that is complex and costly.

Method used

The circulation pipeline in the defrost device includes a heat storage section and a heat release section. The heat storage body absorbs heat in the compressor cabin and releases heat in the heat release section to defrost the evaporator, avoiding the need for additional heaters, directly participating in the heat absorption and heat release processes, and reducing heat loss.

Benefits of technology

It improves defrost efficiency, reduces energy loss, enhances the stability and heat utilization rate of the defrost device, ensures that the evaporator surface is fully heated, reduces defrost water mixing, and improves defrost efficiency and stability.

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Abstract

The present invention relates to the field of refrigeration and freezing technology, and in particular to a refrigeration and freezing device. The refrigeration and freezing device comprises: a housing, which defines an evaporator chamber and a compressor chamber; an evaporator, which is arranged in the evaporator chamber; and a defrost device, which comprises a circulation pipeline, wherein the circulation pipeline comprises a heat storage section arranged in the compressor chamber and a heat release section arranged in the evaporator chamber, the circulation pipeline is filled with a heat storage body that can flow in the circulation pipeline, and the defrost device is configured to allow the heat storage body to absorb heat in the compressor chamber in the heat storage section, and allow the heat storage body to release heat in the heat release section to defrost the evaporator. The defrost device of the refrigeration and freezing device of the present invention utilizes the circulation pipeline and the heat storage body that can flow in the circulation pipeline to complete the heat storage and defrost cycle, avoids heat loss in heat transfer due to the additional provision of other heat transfer media, improves the utilization rate of the heat in the compressor chamber, and thus improves the defrost efficiency.
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