The control method of air-conditioning heating fluorine deficiency protection and compressor frequent overload protection

A technology of overload protection and control method, which is applied in the direction of refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of after-sales maintenance personnel misjudging maintenance, non-recoverable, and reporting fluorine-deficiency protection faults, etc., and achieves a reasonable and practical control method. Timely The effect of protection and avoiding damage

A technology of overload protection and control method, which is applied in the direction of refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of after-sales maintenance personnel misjudging maintenance, non-recoverable, and reporting fluorine-deficiency protection faults, etc., and achieves a reasonable and practical control method. Timely The effect of protection and avoiding damage

CN107477778BActive Publication Date: 2019-10-18NINGBO AUX ELECTRIC
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  • The control method of air-conditioning heating fluorine deficiency protection and compressor frequent overload protection

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Embodiment Construction

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

[0031] Such as figure 1 As shown, it is a preferred embodiment of the control method of the air-conditioning, heating, fluorine deficiency protection and frequent compressor overload protection protection of the present invention. The air conditioner includes a compressor, an indoor fan, an outdoor fan, an indoor heat exchanger, and an outdoor heat exchanger. The control method of the air conditioner for heating, fluorine deficiency protection and compressor frequent overload protection includes the following steps:

[0032] S1: The air conditioner is heated and turned on. Before the compressor is started, the indoor air inlet temperature T at the inlet of the indoor heat exchanger is detected and recorded. a0 , indoor coil temperature T e0 and the outdoor coil temperature T w0 , and execute the next step;

[0033] S2: The air conditioner ...

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Abstract

The invention relates to a control method for air conditioner heating fluoride shortage protection and compressor frequent overload preventing protection. By means of the control method, compressor overload and fluoride shortage protection can be effectively differentiated; one time of overload protection happens to a compressor after a period of time; an air conditioner can continue to run; it is avoided that an air conditioner set immediately reports fault shutdown, and experience of a user is affected; only when the overload time number exceeds a certain number, can the air conditioner report the fault shutdown, and the fault shutdown cannot be restored; and besides, continuous overload happens to the air conditioner set within a short period of time, protection can be performed in time, and it is avoided that because of frequent overload protection of the compressor, the compressor is damaged.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a control method for protection against fluorine deficiency in heating and heating of an air conditioner and protection against frequent overloading of compressors. Background technique [0002] Air conditioner is more and more subject to liking of people as a kind of household appliance of indoor temperature regulation. Measures to protect the compressor of the air conditioner: when the refrigerant is insufficient, a fluorine-deficiency protection control logic is set to prevent the compressor from running at high temperature for a long time; Long-term operation at high temperature or abnormal voltage. [0003] At present, the control method of fluorine deficiency protection: in the heating mode, after the compressor continues to run for a period of time, the temperature difference between the internal disk temperature and the indoor temperature is detected within n seconds. If ...

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Application Information

Patent Timeline
18 Oct 2019
Publication
CN107477778B
IPC
F24F11/64; F25B49/02
Inventors
ζ˜“εΏ θ‘; 蒋建军