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A control method to reduce the risk of icing at the air outlet of the refrigerator

A control method and air outlet technology, which are used in household refrigeration devices, cooling fluid circulation devices, defrosting, etc., can solve the problems affecting the service life and long time of compressors and dampers, and reduce the risk of icing and prolong the service life. , the effect of uniform temperature

Active Publication Date: 2021-10-22
NANJING CHUANGWEI HOUSEHOLD ELECTRONICS APPLIANCES LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the rapid execution and termination of cooling demand leads to frequent actions of the compressor and damper, which will affect the service life of the compressor and damper after a long time

Method used

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  • A control method to reduce the risk of icing at the air outlet of the refrigerator

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] The control method for reducing the risk of icing at the air outlet of the refrigerator in the present invention, the steps are as follows:

[0017] A control method for reducing the risk of icing at the air outlet of a refrigerator, characterized in that the steps are as follows:

[0018] Step 1: Refrigerator running;

[0019] Step 2: The temperature in the room is stable, and there is no action of opening and closing the door within 24 hours;

[0020] Step 3: Collect information within 1 to 3 hours 1: Average time from opening to closing of the refrigerating damper Travg: Record the time Tr from opening to closing the refrigerating damper for multiple times, and calculate the average value;

[0021] Step 4: Collect information within 1 to 3 hours 2: The average time from compressor startup to shutdown Tyavg: Record the time Ty from multiple compressor startu...

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Abstract

The control method of the present invention for reducing the risk of icing at the air outlet of the refrigerating room is as follows: the refrigerator runs; Time Travg: Record the time Tr from opening to closing of the refrigeration damper multiple times, and calculate the average value; collect information within a certain period of time T1 2: The average time from compressor startup to shutdown Tyavg: Record the time Ty from multiple compressor startup to shutdown, Calculate the average value; reduce the opening angle of the refrigerating damper by 5 to 10° within 3 hours; collect Travg and Tyavg within T2, and calculate the difference between Travg and Tyavg, if the difference is within 20%, then Cr executes the current angle , otherwise continue to reduce the opening angle Cr of the refrigerating damper within the next 3 hours, and continue to calculate the difference between Travg and Tyavg after the end of T3 operation, whether it is within B%, and so on, and finally achieve the difference between Travg and Tyavg at 20 % within.

Description

Technical field: [0001] The invention relates to a control method for reducing the risk of icing at an air outlet of a refrigerator, which belongs to the technical field of refrigerators. Background technique: [0002] When using an air-cooled refrigerator, the temperature of some non-evaporator compartments is controlled by dampers and fans. When there is a cooling demand, the compressor, dampers and fans are turned on to reduce the temperature in the compartment. When there is no cooling demand, the air door is closed, and the temperature in the room is gradually increased by using the external temperature. However, under normal circumstances, the opening angle of the damper is about 100°, which is the maximum opening angle. At this time, the volume of the damper is the largest, resulting in a relatively high wind speed and a large air volume at the air outlet of the corresponding compartment. The temperature in the local space can easily reach below freezing point, causi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/04
CPCF25D21/04F25D2600/02
Inventor 闵龙张伟肖祥顺罗金兆种衍习文坚吴启楠
Owner NANJING CHUANGWEI HOUSEHOLD ELECTRONICS APPLIANCES LTD
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