Electronic expansion valve control method and device, 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: 2017-06-06
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Electronic expansion valve control method and device, and air conditioner
  • Electronic expansion valve control method and device, and air conditioner
  • Electronic expansion valve control method and device, 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: starting the compressor of the air conditioner; controlling the opening of the electronic expansion valve of the air conditioner to a first opening value, and starting timing; detecting the first operating parameter and the first operating condition of the compressor, wherein the first The operating parameter is the operating parameter of the compressor when the timing time is between the first preset time and the second preset time, and the first operating condition is when the timing time is between the first preset time and the second preset time. the operating condition; calculate the second opening value according to the first operating parameter and the first operating condition; and control the opening of the electronic expansion valve to the second opening value. The present invention solves the problem in the related art that the compressor in the air-conditioning system reaches a stable running state after startup due to low control precision of the electronic expansion valve.

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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Patent Type & Authority Patents(China)
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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