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Defrosting control method and device and refrigeration equipment

A technology of refrigeration equipment and a control method is applied in the fields of refrigeration equipment, defrost control methods and devices to achieve the effect of ensuring rapid decline and avoiding excessive rise.

Pending Publication Date: 2021-08-13
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a defrosting control method, device, and refrigeration equipment to solve the problem of how to keep the storage temperature stable during the defrosting period of the refrigeration equipment in the prior art

Method used

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  • Defrosting control method and device and refrigeration equipment
  • Defrosting control method and device and refrigeration equipment
  • Defrosting control method and device and refrigeration equipment

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0031] figure 1 is a flowchart of a defrosting control method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0032] In step S101, the refrigeration equipment turns on the defrosting mode, enters the heating state, and turns on the heater.

[0033] Step S102, detecting the operating parameters of the refrigeration equipment; wherein, the operating parameters at least include: the compartment temperature of the refrigeration equipment;

[0034] Step S103, after the operating parameters meet the preset switching conditions, control the refrigeration equipment to switch from the heating state to the cooling state; the cooling state refers to the cooling state in the defrosting mode, during which the compressor will continue to run at high speed, not cooling The normal cooling mode of the device;

[0035] Step S104, after the cooling state ends, control the refrigeration equipment to switch back to the h...

Embodiment 2

[0046] The defrosting cycle of the refrigeration equipment will be introduced in combination with the accompanying drawings, taking the refrigerator as an example, figure 2 is a schematic diagram of the power-temperature change of the refrigeration equipment according to the embodiment of the present invention, such as figure 2 As shown, a refers to the powerful cooling state, b refers to the return air defrosting state, c refers to the defrosting state in the defrosting mode, c1 refers to the heating state, c2 refers to the dripping state, and c3 refers to the cooling state (also It can be called the defrosting refrigeration state), d refers to the dripping water state, f refers to the pre-cooling state, and g refers to the normal cooling state under the refrigeration mode.

[0047] A control cycle of a refrigerator includes a refrigeration cycle (refrigeration mode) and a defrost cycle (defrost mode). The preset temperature in the example. Th is the compartment temperatu...

Embodiment 3

[0073] corresponds to figure 1 The defrosting control method introduced, this embodiment provides a defrosting control device, such as Figure 4 The structural block diagram of the defrosting control device shown, the device includes:

[0074] The detection module 10 is used to detect the operating parameters of the refrigeration equipment after the refrigeration equipment is in the defrosting mode and enters the heating state; wherein, the operation parameters include at least: the temperature of the compartment of the refrigeration equipment;

[0075] The control module 20, connected to the detection module 10, is used to control the refrigeration equipment to switch from the heating state to the cooling state after the operating parameters meet the preset switching conditions; after the cooling state ends, control the refrigeration equipment to switch back to the heating state, and re-detect The operating parameters of the refrigeration equipment until the defrost mode is ...

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PUM

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Abstract

The invention discloses a defrosting control method and device and refrigeration equipment. The method comprises the steps that after the refrigeration equipment is in a defrosting mode and gets into a heating state, operation parameters of the refrigeration equipment are detected, wherein the operation parameters at least comprise the chamber temperature of the refrigeration equipment; after the operation parameters meet preset switching conditions, the refrigeration equipment is controlled to be switched from the heating state to a refrigeration state; and after the refrigeration state is finished, the refrigeration equipment is controlled to be switched back to the heating state, and the operation parameters of the refrigeration equipment are detected again till the defrosting mode is quit. In the defrosting process of the refrigeration equipment, the chamber temperature serves as a triggering parameter for quitting the heating state, and the chamber temperature is prevented from rising too high. A refrigerating state is set between any two heating states in one defrosting period, so that it is guaranteed that the chamber temperature is rapidly reduced. Thus, the 3K problem of the refrigeration equipment is solved, and national standard requirements are met.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a defrosting control method, device and refrigeration equipment. Background technique [0002] The 3K problem, that is, during the defrosting and recovery period of the frost-free refrigeration appliance, the storage temperature of the compartment is allowed to rise no more than 3°C. In order to solve the 3K problem, the existing defrosting control scheme usually uses strong cooling before entering the defrosting (that is, the compressor performs high-speed continuous refrigeration), and the storage temperature is lowered first before defrosting, but this defrosting control scheme cannot completely solve the 3K problem, and there will still be storage temperature rises during the defrosting and recovery period of the refrigerator A phenomenon in which the value rises by more than 3°C. [0003] For the problem of how to keep the storage temperature stable during the defrost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D21/08F25D29/00
CPCF25D21/08F25D29/005
Inventor 甄梦想辛海亚李琦
Owner GREE ELECTRIC APPLIANCES INC