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Method for controlling defrosting of refrigerator

A control method and refrigerator technology, applied in defrosting, electrical program control, program control in sequence/logic controllers, etc., can solve the problem of ineffective defrosting, high energy consumption, and no consideration of the outside temperature and humidity of the refrigerator. And other issues

Active Publication Date: 2014-03-26
HAIER GRP CORP +1
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  • Application Information

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Problems solved by technology

[0005] However, this method only controls the length of the defrosting time through one condition, that is, the cumulative number of door openings, without considering other external factors such as the temperature and humidity outside the refrigerator, and cannot effectively defrost.
In addition, regardless of whether the shortened defrosting operation period is performed or the natural defrosting is performed, the defrosting is performed according to a fixed cycle, so there is also a problem of large energy consumption

Method used

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  • Method for controlling defrosting of refrigerator
  • Method for controlling defrosting of refrigerator
  • Method for controlling defrosting of refrigerator

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Embodiment 1

[0039] In this embodiment, under the environmental conditions that the temperature T is T1≤T≤T2 and the humidity is a%, the operating time of the refrigerator is divided into five time periods: 0≤T<7 (hours), 7≤T<14 (hours), 14≤T<49 (hours), 49≤T<73 (hours), 73≤T<90 (hours), from the second time period, set the accumulated times of door opening and The cumulative time of opening the door is: (90 times, 15 minutes), (50 times, 8 minutes), (30 times, 5 minutes), (15 times, 3 minutes). These data and correspondences are stored in the memory 16 respectively. The refrigerator running time timer 13 sends a corresponding timing instruction to the controller 10 every hour after counting to 6 hours. According to the timing instruction, the controller 10 judges the degree of frosting according to the external environment (temperature, humidity) of the refrigerator and the frequency and time of door opening of the refrigerator at every hour after the refrigerator has been running for 6 ...

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Abstract

The invention provides a method for controlling the defrosting of a refrigerator. The method comprises the following steps of: (A) detecting the environmental moisture and the environmental temperature of a refrigerator; (B) counting the opening frequency and the opening time of the refrigerator to obtain a cumulative opening frequency and a cumulative opening time; and (C) detecting the cumulative opening frequency and the cumulative opening time according to a specified time interval and defrosting the refrigerator when either the cumulative opening frequency or the cumulative opening time is larger than a preset specified value and the environmental moisture and the environmental temperature which are detected are under the specified conditions. Accordingly, a start defrosting point can be accurately confirmed according to practical environmental conditions, the operation conditions to the refrigerator, and the like so as to defrost in time to a certain degree and effectively reduce the power consumption.

Description

technical field [0001] The invention relates to the field of defrosting, in particular to a defrosting control method for a refrigerator. Background technique [0002] As far as traditional air-cooled devices are concerned, such as air-cooled refrigerators, defrosting is generally carried out according to a fixed time period. In order to ensure that the frosting thickness of the refrigerator does not affect the refrigeration under harsh conditions, usually the The defrosting cycle is set relatively short, so that the number of defrosting is too frequent for normal use conditions. Since the power of the defrosting heating wire is relatively large, and it will cause the temperature inside the refrigerator to rise, it will cause the power consumption of the refrigerator to increase under normal use conditions. [0003] Therefore, there is an urgent need for a method that can properly perform defrosting according to specific environmental conditions. [0004] In the prior art,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D21/00G05B19/04
Inventor 马廷徐楠王铭吴海滨张奎
Owner HAIER GRP CORP
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