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Method and device for judging refrigerant recovery completion condition and air conditioner

A refrigerant recovery and judging device technology, which is applied to control input related to air characteristics, refrigerators, heating methods, etc., can solve problems such as easy misjudgment of pressure detection, and achieve accurate and reliable judgment results

Active Publication Date: 2021-09-24
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem solved by the invention is that the existing pressure detection method is easy to misjudgment

Method used

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  • Method and device for judging refrigerant recovery completion condition and air conditioner
  • Method and device for judging refrigerant recovery completion condition and air conditioner
  • Method and device for judging refrigerant recovery completion condition and air conditioner

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Embodiment Construction

[0051]In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0052] see figure 1 , figure 1 Shown is a flowchart of a method for judging the completion of refrigerant recovery provided by this embodiment. The method for judging the completion of refrigerant recovery judges the completion of refrigerant recovery through multi-condition judgment of multiple parameters before and after refrigerant recovery under different working conditions. The result is more accurate and reliable. The method for judging the completion of refrigerant recovery provided in this embodiment includes the following steps:

[0053] In step S101, the indoor environment temperature is acquired, and a first determination condition and a second determination condition are determined according to the indoor environment temperat...

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Abstract

The invention provides a method and a device for judging the refrigerant recovery completion condition and an air conditioner, and relates to the technical field of air conditioners. The judgment method comprises the steps of obtaining an indoor environment temperature, and determining a first judgment condition and a second judgment condition according to the indoor environment temperature; obtaining an initial weight of an outdoor unit before refrigerant recovery starts, and determining a third judgment condition according to the initial weight; obtaining an initial air outlet temperature of an indoor unit when refrigerant recovery starts, and obtaining a real-time air outlet temperature in the refrigerant recovery process; under the condition that the indoor environment temperature, the initial air outlet temperature and the real-time air outlet temperature meet the first judgment condition, controlling the indoor unit to reduce the air gear rotating speed; under the condition that the real-time air outlet temperature before and after the air gear rotating speed is reduced meets a second judgment condition, obtaining a real-time weight of the outdoor unit; and under the condition that the real-time weight and the initial weight meet a third judgment condition, judging that refrigerant recovery is completed. The judgment method provided by the invention can accurately judge whether the refrigerant is completely recovered or not.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method and device for judging completion of refrigerant recovery and an air conditioner. Background technique [0002] When producing air conditioners, the manufacturer will conduct a trial run test on the air conditioner on the production line. After the trial run test is completed, the refrigerant needs to be recycled into the outdoor unit of the air conditioner. At present, the production line mainly uses pressure testing to judge the air conditioner. Whether all the refrigerant in the unit has been recycled to the outdoor unit. [0003] Since there are many kinds of refrigerants on the market, such as R410A, R32, R290, R22, etc., the recovery pressures corresponding to different refrigerants are different, and the pressure detection method is easy to misjudge. Contents of the invention [0004] The problem solved by the invention is that the existing pressure de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/30F24F11/64F24F11/77F24F11/88F25B45/00F25B49/02F24F110/10
CPCF24F11/30F24F11/64F24F11/77F24F11/88F25B45/00F25B49/02F24F2110/10Y02B30/70
Inventor 赖东锋
Owner NINGBO AUX ELECTRIC
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