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Control method and device of electronic expansion valve and air conditioner

An electronic expansion valve and control method technology, applied in refrigeration and liquefaction, refrigerators, refrigeration components, etc., can solve the problems of slow speed and low control accuracy of electronic expansion valve, and achieve the effect of improving control accuracy

Active Publication Date: 2015-09-23
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a control method and device for an electronic expansion valve and an air conditioner to solve the problem of the compressor in the air conditioning system reaching a stable operating state after starting due to the low control accuracy of the electronic expansion valve in the related art The slow problem

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  • Control method and device of electronic expansion valve and air conditioner
  • Control method and device of electronic expansion valve and air conditioner
  • Control method and device of electronic expansion valve and air conditioner

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0027] It should be noted that the terms "first" and "second" in ...

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Abstract

The invention discloses a control method and device of an electronic expansion valve and an air conditioner. The method includes the steps of starting a compressor of the air conditioner; controlling the opening degree of the electromagnetic valve of the air conditioner to the first opening degree value, and starting timekeeping; detecting the first running parameter and the first running condition of the compressor, wherein the first running parameter is the running parameter of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time, and the first running condition is the running condition of the compressor when the time obtained through timekeeping is between the first preset time and the second preset time; calculating the second opening degree value according to the first running parameter and the first running condition; controlling the opening degree of the electronic control valve to the second opening degree value. By means of the control method and device of the electronic expansion valve and the air conditioner, the problem that in the prior art, due to the fact that the control accuracy of the electronic expansion valve is low, the speed at which the compressor in an air conditioner system arrives at the stable running state after being started is low is solved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a method and device for controlling an electronic expansion valve and an air conditioner. Background technique [0002] At present, with the deepening of energy saving and emission reduction, the energy efficiency assessment of the small frequency conversion one-to-one air-conditioning system has transitioned from the past fixed-point energy efficiency and seasonal energy efficiency to the annual energy efficiency assessment. The capillary throttling parts used have been unable to meet the adjustment requirements of a wide range of operating conditions and a large range of refrigerant flow changes, thus promoting the wide application of electronic expansion valves in small frequency conversion one-to-one air-conditioning systems. [0003] For the control of the electronic expansion valve on the air conditioning system, most of the related technologies adopt the PID closed-loop fee...

Claims

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Application Information

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IPC IPC(8): F25B49/02F25B41/06F25B41/34
CPCF25B49/022F25B41/31Y02B30/70
Inventor 郑波梁祥飞庄嵘
Owner GREE ELECTRIC APPLIANCES INC
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