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Defrosting detection method, device and equipment and air conditioning unit

An air-conditioning unit and detection method technology, applied to devices, equipment and air-conditioning units, entering the field of defrosting detection methods, can solve the problems of low reliability, affecting the defrosting effect, etc., achieve high reliability, avoid misjudgment, improve The effect of reliability

Pending Publication Date: 2022-03-04
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a detection method, device, equipment and air-conditioning unit for defrosting, to overcome the problem of low reliability of the detection method for defrosting in the prior art and affecting the defrosting effect

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  • Defrosting detection method, device and equipment and air conditioning unit
  • Defrosting detection method, device and equipment and air conditioning unit
  • Defrosting detection method, device and equipment and air conditioning unit

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0047] For air conditioning units with outdoor heat exchangers, there is always a problem of frosting when the outdoor heat exchangers function as evaporators during heating in winter. At present, the method of inverse refrigerant circulation is generally used to achieve defrosting, that is, through the on-off of the contacts of the defrosting controller switch, the electromagnetic reversing valve is switched into the defrosting mode to achieve the effect of def...

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Abstract

The invention relates to the technical field of defrosting, in particular to a defrosting entering detection method, device and equipment and an air conditioning unit, corresponding compressor operation time, namely defrosting interval time, is set according to different environment temperatures, the situation that defrosting is not thorough possibly due to the fact that defrosting is conducted after the fixed defrosting time is spaced is avoided, and the defrosting efficiency is improved. In addition, the detected fan operation parameters are added to serve as defrosting trigger information, a redundancy control mode is achieved, and the reliability of unit defrosting detection is higher. In addition, defrosting can be started after it is detected that the whole air conditioning unit meets the defrosting condition, misjudgment of the defrosting condition is avoided, and the reliability of the defrosting detection mode is further improved.

Description

technical field [0001] The invention relates to the technical field of defrosting, in particular to a detection method, device, equipment and air-conditioning unit for defrosting. Background technique [0002] For air conditioning units with outdoor heat exchangers, there is always a problem of frosting when the outdoor heat exchangers function as evaporators during heating in winter. At present, the method of inverse refrigerant circulation is generally used to achieve defrosting, that is, through the on-off of the contacts of the defrosting controller switch, the electromagnetic reversing valve is switched into the defrosting mode to achieve the effect of defrosting. [0003] In the prior art, defrosting is generally performed after a fixed time interval, or a low pressure sensor is used to detect the system low pressure of the air conditioning unit, and defrosting is performed when the system low pressure reaches a preset set value. However, due to the different air humi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/61F24F11/38F24F11/52
CPCF24F11/42F24F11/64F24F11/61F24F11/38F24F11/52
Inventor 钟海玲程琦
Owner GREE ELECTRIC APPLIANCES INC
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