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Defrosting method and device, air conditioner and storage medium

A technology of frost layer and condensation pressure, which is applied in the direction of heating method, space heating and ventilation, control input related to air characteristics, etc. It can solve the problems of affecting the heat exchange of external units and the deterioration of heating effect

Active Publication Date: 2020-06-02
NINGBO AUX ELECTRIC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, with the above method, it often happens that a thick layer of frost has accumulated on the surface of the condenser, but the temperature of the condenser coil has not yet reached the defrosting condition, which seriously affects the heat exchange of the external unit, resulting in poor heating effect

Method used

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  • Defrosting method and device, air conditioner and storage medium
  • Defrosting method and device, air conditioner and storage medium
  • Defrosting method and device, air conditioner and storage medium

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Embodiment Construction

[0051] In order to make the purpose, features, and advantages of the application more obvious and understandable, the technical solutions in the embodiments of the application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0052] see figure 1 , figure 1 It is a schematic flow chart of a defrosting method provided by an embodiment of the present application. This method can be applied to an air conditioner. The air conditioner includes a heating compressor, an evaporator, and a condenser. During the unsteady heating process, the refrigerant is sequentially After passing through the heating comp...

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Abstract

The invention discloses a defrosting method and belongs to the technical field of air conditioners. The defrosting method comprises the steps that in the unsteady state heating process, the condensingpressure reducing rate index of the current time period is calculated, and whether the condensing pressure reducing rate index is smaller than a preset threshold value or not is judged, wherein the preset threshold value is the condensing pressure reducing rate index of a system achieved when a frost layer is accumulated to preset thickness; and if the condensing pressure reducing rate index is smaller than the preset threshold value, an air conditioner gets into a defrosting mode. The invention further discloses a defrosting device, the air conditioner and a storage medium. Whether the thickness of the frost layer on the surface of a condenser is accumulated to form the frost layer of the preset thickness or not is judged according to the condensing pressure reducing rate index, and thendefrosting is carried out in time.

Description

technical field [0001] The present application relates to the technical field of air conditioners, in particular to a defrosting method and device, an air conditioner and a storage medium. Background technique [0002] When the air conditioner is heating, the refrigerant passes through the compressor, evaporator and condenser in sequence. The condenser is in a low temperature state for a long time, and it is easy to frost. When the frosting reaches a certain thickness, it will affect the heat exchange efficiency of the condenser and cause the overall heating capacity of the air conditioner to decrease. [0003] During the unsteady-state heating operation of the current air conditioner, it is basically judged whether the air conditioner needs to enter defrosting based on one or a combination of the accumulated operating time of the compressor mechanism, the temperature of the condenser coil, and the low pressure of the system. model. However, if the above method is used, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/61F24F11/64F24F11/65F24F11/83F24F11/88F24F110/10F24F140/20
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F11/83F24F11/88F24F2110/10F24F2140/20
Inventor 刘永超章秋平
Owner NINGBO AUX ELECTRIC
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