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A low-temperature heating machine defrosting control scheme

A control scheme and low-temperature technology, applied in refrigerators, refrigeration components, mechanical equipment, etc., can solve the problem that the unit cannot be effectively defrosted or defrosted in time, and cannot be defrosted or defrosted without frost. The effect of improving the defrosting rate, reducing the frosting rate and improving the stability

Active Publication Date: 2021-04-13
ZHONGSHAN SHENBAO ELECTRIC APPLIANCES MFG
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0006] Neither of the above two methods can solve the problem of defrosting with frost or defrosting without frost, which makes the unit unable to defrost in time and effectively or defrost cleanly.

Method used

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  • A low-temperature heating machine defrosting control scheme

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Embodiment Construction

[0042] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the invention will be further elaborated below in conjunction with specific embodiments.

[0043] refer to figure 1 , the specific embodiment adopts any of the following technical solutions: a low-temperature heating machine defrosting control solution, which is characterized in that it includes detecting and reading the outdoor ambient temperature, outdoor pipe temperature, fin temperature and disc temperature in the case of low ambient temperature According to the temperature value detected above, different defrosting schemes can be selected. There are three defrosting schemes: first defrosting, normal defrosting and special defrosting.

[0044] Wherein, the three schemes of first defrosting, routine defrosting and special defrosting all have an entry state and an exit state.

[0045] Wherein, the first defrosting needs to meet any of the foll...

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Abstract

The invention discloses a defrosting control scheme for a low-temperature heating machine, which cannot solve the problem of not defrosting with frost or defrosting without frost, so that the unit cannot be defrosted in time and effectively or defrosted completely. The present invention is different from the existing traditional defrosting method. By detecting different parameter values ​​at different low ambient temperatures, it can be judged whether the unit needs to enter defrosting, so that it can timely judge the defrosting of the unit in time, and solve the problem of whether there is frost or not. The problem of defrosting or defrosting without frost The implementation of this case can improve the stability and heat transfer of the unit, reduce the frosting rate at low temperature and increase the defrosting rate.

Description

technical field [0001] The invention is a defrosting control scheme for a low-temperature heating machine. Background technique [0002] The defrosting problem in the air-conditioning system under low ambient temperature (7℃~-25℃) is a subject that needs to be overcome by air-conditioning designers. How to solve the problem of wrong defrosting during the operation of the air conditioner, that is, the problem of defrosting when there is frost and defrosting without frost is a way to realize energy saving of the air conditioner. [0003] At present, most of the defrosting control methods in the market are as follows: [0004] 1. Timing defrosting: under a certain ambient temperature, the unit defrosts at regular intervals; [0005] 2. When the temperature of the outdoor coil is lower than a certain set temperature, it will defrost after a period of time; [0006] The above two methods cannot solve the problem of non-defrosting or defrosting without frost, so that the unit c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B47/02F25B49/02F24F11/41
CPCF25B47/02F25B49/02F24F11/41
Inventor 周任清
Owner ZHONGSHAN SHENBAO ELECTRIC APPLIANCES MFG
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