Method for controlling electric expansion valve of air condition
An electronic expansion and valve control technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of time delay, inconvenience, and reducing the ability of air conditioning to cool and heat rooms, so as to reduce the conflicting intervals, improve the ability of cooling and heating rooms, shorten The effect of a stable starting point
Inactive Publication Date: 2007-05-09
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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[0005] However, in the initial operation step of the air conditioner, since the converted value of the discharge temperature of the compressor is opposite to the converted value of the degree of superheat, if the combined value of the above two values is directly used, the time taken for the stable cycle will be delayed and the overall cooling and heating capacity of the air conditioner will be reduced.
[0006] This shows that above-mentioned existing air-conditioning electronic expansion valve control method obviously still has inconvenience and defect in method and use, and needs to be further improved urgently
In order to solve the problems existing in the electronic expansion valve control method of air conditioners, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable method for the general method to solve the above This is obviously a problem that relevant industry players are eager to solve
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[0027] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation methods, methods and steps of the electronic expansion valve control method for air conditioners proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , features and their effects are described in detail below.
[0028] Next, please refer to Fig. 1 and Fig. 2, Fig. 1 is a diagram showing the cycle structure of the air conditioner according to the present invention; Fig. 2 is a diagram showing the action block of the air conditioner according to the present invention.
[0029] The air conditioner according to the present invention includes a compressor, a condenser, an electronic expansion valve, and an evaporator. Wherein, the above-mentioned compressor is used to compress the condensing agent; the function of the above-ment...
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A method for controlling electronic expansion valve of air conditioner includes separately measuring temperature of freezing mixture at outlet of compressor and temperature of freezing mixture at inlet and outlet of evaporator, calculating out temperature difference between inlet and outlet of evaporator, setting object overheat degree based on calculated overheat degree and using overheat degree to decide opening angle of electronic expansion valve.
Description
technical field [0001] The invention relates to a method for controlling an electronic expansion valve of an air conditioner, in particular to a method for controlling an electronic expansion valve of an air conditioner using the temperature and superheat of a condensate discharged from a compressor to control the electronic expansion valve. Background technique [0002] A general air conditioner includes a compressor, condenser, electronic expansion valve, and evaporator. Wherein, the above-mentioned compressor compresses the condensing agent; the function of the above-mentioned condenser is to liquefy the high-temperature and high-pressure gas condensing agent supplied from the compressor; the function of the above-mentioned electronic expansion valve is to depressurize and expand the high-pressure fluid supplied with the condensing agent; The above-mentioned evaporator functions to vaporize the condensate supplied from the electronic expansion valve, thereby cooling the s...
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IPC IPC(8): F25B41/06
CPCY02B30/72Y02B30/70
Inventor 金玟秀
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD