Air conditioner and judgment method and device for air conditioner in defrost mode

A technology for judging devices and air conditioners, applied in space heating and ventilation, heating methods, refrigeration and liquefaction, etc., can solve problems such as frost-free defrosting, improve accuracy, avoid frost-free defrosting, and ensure accuracy Effect

Active Publication Date: 2014-07-16
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are some shortcomings in the existing technology of judging entering defrosting, for example, there will be problems such as defrosting without frost

Method used

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  • Air conditioner and judgment method and device for air conditioner in defrost mode
  • Air conditioner and judgment method and device for air conditioner in defrost mode
  • Air conditioner and judgment method and device for air conditioner in defrost mode

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Embodiment Construction

[0031] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0032] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0033] figure 1 A schematic flowchart of a method for judging that an air conditioner enters a defrosting mode according to an embodiment of the present invention is shown.

[0034] Such as figure...

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Abstract

The invention provides a control method of an air conditioner in a defrost mode. The control method includes a judgment step, namely judging whether the rotation speed of an outdoor fan of the air conditioner equals to a target rotation speed or not when the air conditioner is in a heating mode; a detection step, namely starting to detect the current value in the outdoor fan when the rotation speed of the outdoor fan of the air conditioner is equal to the target rotation speed; a processing step, namely starting the defrost mode for defrosting when the variation trend of the detected current value increases. Correspondingly, the invention further provides a control device of the air conditioner in the defrost mode. By the technical scheme, timing that the air conditioner starts to defrost can be simply and accurately judged, the shortcomings like frost-free defrost is avoided, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioner defrosting, in particular to a method for judging that an air conditioner enters a defrosting mode, a device for judging that an air conditioner enters a defrosting mode, and an air conditioner. Background technique [0002] The existing air-conditioning and refrigeration system includes a compressor, an indoor fan, an outdoor fan, an outdoor heat exchanger, a throttling device, an indoor heat exchanger and a control device. When the air conditioner is heating and running, the temperature of the outdoor heat exchanger is relatively low. When the outdoor temperature is low and the humidity is high, frost will form on the outdoor heat exchanger. As the frost increases, the heating capacity of the air conditioner will gradually decrease. Therefore, frost must be judged accurately in time and defrosted. There are some disadvantages in the existing technology of judging entry into defrosting, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B47/02
Inventor 褚永
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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