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Novel frostless direct-cooling refrigerator and control method

A direct-cooling refrigerator, a new type of technology, applied in household refrigerators, defrosting, cooling machines, etc., can solve the problem of low partial pressure, and achieve the effect of strong applicability and enhanced preservation effect.

Inactive Publication Date: 2018-08-10
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) The partial pressure of water vapor in the air in the box is low

Method used

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  • Novel frostless direct-cooling refrigerator and control method
  • Novel frostless direct-cooling refrigerator and control method

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Effect test

Embodiment Construction

[0042] Such as figure 1 As shown, a novel frost-free direct-cooling refrigerator of the present invention is an improvement carried out on conventional direct-cooling refrigerators. The refrigeration system of conventional direct-cooling refrigerators includes a compressor 11, a condenser 12, a drying filter 13, a refrigeration capillary 14. Refrigerating chamber evaporator 15, solenoid valve 16, freezing chamber capillary tube 17, freezing chamber evaporator 18 and refrigerant piping system, the suction port of the compressor 11 is connected to the freezing chamber evaporator 15, and the exhaust port is connected to After the condenser 12, it is connected with the dry filter 13. After the outlet of the dry filter 13 is connected with the solenoid valve 16, it is divided into two branches. The other branch is connected to the freezer capillary 17 and then connected to the freezer evaporator 18 after being connected to the previous branch, and then connected to the suction pipe...

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Abstract

The invention provides a novel frostless direct-cooling refrigerator which comprises a nitrogen making unit, an air energy storage system and a controller. The nitrogen making unit comprises an air port, a nitrogen making machine and a nitrogen pipe outlet. The air energy storage system comprises a freezing chamber air tank, a refrigerating chamber air tank, a fan, a refrigerating chamber air port, a freezing chamber air port, a refrigerating chamber air curtain device, a freezing chamber air curtain device and corresponding air duct systems, wherein pressure sensors are arranged inside the refrigerating chamber air tank and the freezing chamber air tank, and a refrigerating chamber and a freezing chamber are each internally provided with a temperature sensor and a humidity sensor. The nitrogen making unit and the air energy storage system are controlled by the controller. The invention further provides a control method of the novel frostless direct-cooling refrigerator. The system working mode is adjusted through the controller according to monitored temperature, humidity and pressure, an air curtain is formed in a refrigerator door, certain high pressure is formed at a refrigerator body, partial pressure of water vapor is improved, the refrigerator is free of frosting, and the direct-cooling refrigerator can run normally and efficiently.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a novel frost-free direct cooling refrigerator and a control method. Background technique [0002] With the development of the economy, refrigerators are the necessities of family life. [0003] In terms of existing refrigerators, they are mainly divided into two categories, one is air-cooled refrigerators, and the other is direct-cooled refrigerators. From the perspective of fresh-keeping effect, the direct-cooling refrigerator has a good fresh-keeping effect due to the natural convection formed in the cabinet, which reduces the temperature of food and water loss; from the perspective of product quality, the technology of direct-cooling refrigerators is more mature, and the relative failure rate is lower ;From the perspective of frosting, direct cooling refrigerators need to be cleaned regularly, while air-cooling refrigerators have a defrosting cycle, resulting in large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/02F25D17/04F25D21/04
CPCF25D11/02F25D17/045F25D21/04F25D2317/04
Inventor 郭永辉陈晓明戴贵龙邱金友
Owner FUJIAN UNIV OF TECH
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