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Refrigerator air door freezing detection and control method, system, device and refrigerator

A detection and control system, detection and control technology, applied in the direction of household refrigeration equipment, defrosting, household appliances, etc., can solve the problems that cannot be completely solved, the refrigerator damper cannot be opened, etc., and achieve the effect of ensuring successful opening

Active Publication Date: 2017-02-22
HEFEI HUALING CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the air door of the refrigerator cannot be opened due to icing, and the existing solutions cannot completely solve the problem, the present invention provides a method, system, device and refrigerator for detecting and controlling the icing of the air door of the refrigerator

Method used

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  • Refrigerator air door freezing detection and control method, system, device and refrigerator
  • Refrigerator air door freezing detection and control method, system, device and refrigerator
  • Refrigerator air door freezing detection and control method, system, device and refrigerator

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Embodiment 1

[0065] Such as image 3 As shown, this embodiment proposes a method for detecting and controlling freezing of a refrigerator air door, and the method includes the following steps:

[0066] S1. Detect whether the damper is requested to be opened;

[0067] S2. When the damper is requested to be opened, detect the current value of the damper motor, and judge whether the damper needs to be heated according to the change of the current value within a certain period of time.

[0068] By judging whether the damper can be opened normally by judging the change of the motor current of the damper within a certain period of time when the damper is requested to open, and then knowing whether the damper has frozen, it is possible to continuously heat the surroundings of the damper until the The damper can be opened. No matter how much ice is on the damper door, it can effectively solve the problem of detecting whether the damper is icing and effectively clearing the ice when the damper is...

Embodiment 2

[0079] Such as Figure 7 As shown, this embodiment proposes a refrigerator air door icing detection control system, the system includes:

[0080] The request detection module 1 is used to detect whether the damper is requested to be opened;

[0081] The detection control module 2 is used to detect the current value of the damper motor 13 when the damper is requested to be opened, and judge whether the damper needs to be heated according to the change of the current value within a certain period of time.

[0082] By judging whether the damper can be opened normally by judging the change of the motor current of the damper within a certain period of time when the damper is requested to open, and then knowing whether the damper has frozen, it is possible to continuously heat the surroundings of the damper until the The damper can be opened. No matter how much ice is on the damper door, it can effectively solve the problem of detecting whether the damper is icing and effectively ...

Embodiment 3

[0097] Such as Figure 11 and Figure 12 As shown, this embodiment proposes a refrigerator air door icing detection and control device, which includes the above-mentioned refrigerator air door icing detection and control system, the control system is embedded in the main control board of the refrigerator, and the control device also Including a heating wire 9, a metal plate 10 and a current detection device 11, the metal plate 10 is laid around the door of the damper, the metal plate 10 is provided with a heating wire 9, the heating signal input end of the heating wire 9 is connected to the main control board of the refrigerator The heating signal output end of 12 is connected, the control signal input end of current detection device 11 is connected with the control signal output end of refrigerator main control board 12, the current detection signal output end of current detection device 11 is connected with the current detection signal input end of damper motor 13 connected...

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Abstract

The invention relates to a refrigerator air door freezing detection and control method, system, device and a refrigerator and relates to the field of refrigerator air door detection and control. The problems that a refrigerator air door cannot be opened due to freezing, and meanwhile, the problem cannot be solved through existing solutions are solved completely. According to the refrigerator air door freezing detection and control method, system, device and the refrigerator, when an air door requests opening, according to the change of currents of a motor of the air door within a certain period of time, whether the air door can be opened normally is judged, and thus whether the air door freezes can be known, so that continuous heating is conducted around an air door leaf pertinently till the air door can be opened. No matter how much ice is on the air door leaf, the effects that when the air door is opened, whether freezing occurs is detected, and ice is removed effectively can be achieved effectively, and successful opening of the air door is ensured.

Description

technical field [0001] The invention relates to the field of refrigerator air door detection and control. Background technique [0002] Air-cooled refrigerators on the market often have the situation that the air door cannot be opened due to freezing, resulting in the failure of normal cooling of the refrigerator compartment. In response to this situation, many refrigerators have added heating wire defrosting to the damper at present, such as figure 1 As shown, the heating wire adopts a time control method, such as figure 2 As shown, the intermittent heating is performed according to a certain period of time, and the frost is turned into water and slipped away to prevent the damper from being blocked by freezing. [0003] But there are still many defects by the above means: [0004] 1. When the damper is placed horizontally, the heated defrosting water is not easy to be drained in time (it can be discharged after a certain amount is collected). Although it has the effect...

Claims

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Application Information

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IPC IPC(8): F25D21/02F25D21/08F25D29/00
CPCF25D21/02F25D21/08F25D29/003
Inventor 张海斌杨伟严峰凡伟
Owner HEFEI HUALING CO LTD
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