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Method for protecting compressor during fluorine lack of inverter air conditioner

A protection technology for frequency conversion air conditioners and compressors, applied in heating methods, space heating and ventilation, household heating, etc., can solve the problems of fluorine-deficiency protection devices that cannot provide timely protection and cost, achieve accurate and effective protection, and avoid errors The effect of stopping

Active Publication Date: 2010-12-29
AUX AIR CONDITIONING LTD BY SHARE LTD
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Problems solved by technology

[0004] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a compressor protection method for the inverter air conditioner when it lacks fluorine, so as to solve the problem that the fluorine deficiency protection device of the inverter air conditioner cannot be protected in time and the cost is high

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  • Method for protecting compressor during fluorine lack of inverter air conditioner
  • Method for protecting compressor during fluorine lack of inverter air conditioner
  • Method for protecting compressor during fluorine lack of inverter air conditioner

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Such as figure 1 , 2 , 3, the existing inverter air conditioner is provided with the following four temperature sensors:

[0032] The first temperature sensor 1 (indoor ambient temperature sensor) is fixedly arranged at the surface air inlet of the indoor unit evaporator of the air conditioner, and is used to detect the indoor ambient temperature;

[0033] The second temperature sensor 2 (indoor coil temperature sensor) is fixedly arranged on the middle coil of the evaporator of the indoor unit of the air conditioner, and is used to detect the temperature of the middle coil of the evaporator; figure 2 Middle 11 is the heat exchanger installation side plate, and 12 is the indoor heat exchanger fin;

[0034] The third temperature sensor 3 (outdoor ambient temperature sensor), is fixedly arranged at the air inlet of the condenser of the outdoor unit o...

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Abstract

The invention relates to a method for protecting a compressor during fluorine lack of an inverter air conditioner. When the air-conditioner refrigerates, the compressor continuously runs for 5 minutes after starting-up, if a temperature difference value between an indoor environment temperature and an indoor coil temperature is less than or equal to 11 DEG C and is kept for 30 seconds, the air-conditioner is judged to meet the condition 1 of entering fluorine lack protection; and if the actual running frequency corresponding to an outdoor environment temperature meets the parameter values in a design, and the detected actual running current value is less than the running current value of the fluorine lack protection design and is kept for 30 seconds, or the actual running frequency corresponding to an outdoor exhaust temperature meets the parameter values of the design, and the detected actual running current value is less than the running current value of the fluorine lack protection design and is kept for 30 seconds, the air-conditioner enters a fluorine lack protection state. The method for protecting the compressor during the fluorine lack of the inverter air conditioner of the invention also can reduce the cost under the condition of precisely realizing fluorine lack protection.

Description

technical field [0001] The invention relates to compressor protection of an inverter air conditioner, in particular to a method for protecting the compressor of an inverter air conditioner when it lacks fluorine. Background technique [0002] Through the analysis of the frequency conversion air conditioners on the market, it is found that the current frequency conversion air conditioners on the market basically use the temperature protector on the top of the compressor shell and the protection method of adding a low-voltage protection switch at the suction pipe of the compressor. Both the protection switch and the temperature protector on the top of the compressor case need to add a control line. In addition, the pressure protection switch and the temperature protector on the top of the compressor case have slow response and high cost. higher. [0003] Due to the particularity of the inverter air conditioner, the above method cannot be protected in time, because when the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F11/02
Inventor 白韡袁润修郑坚江潘建敏
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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