Method and device for judging blockage of return air port, and air conditioner
A technology for judging device and air return port, which is applied to the control input, heating method, space heating and ventilation related to air characteristics, etc., which can solve the problems of blockage and difficult identification of the air return port of the compressor.
Active Publication Date: 2022-03-29
NINGBO AUX ELECTRIC +1
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Problems solved by technology
[0003] The problem solved by the invention is that the blockage fault of the air return port of the compressor of the multi-connected air conditioner is difficult to be identified by maintenance personnel
Method used
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[0037] 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.
[0038] see figure 1 , figure 1 Shown is a flow chart of the method for judging the air return port opening and blocking provided by this embodiment. The method for judging the blockage of the air return port is applied to the air conditioner, and automatically judges through the operating parameters of the air conditioner to accurately identify the blockage of the air return port of the air conditioner compressor, so as to provide maintenance personnel with accurate maintenance directions in time and save maintenance costs. The method for judging the blockage of the return air port provided in this embodiment includes the following steps:
[0039] In step S101, the air conditioner is controlled to operate in a heating mode.
[0040] In ...
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The invention provides a method and device for judging the blockage of a return air port, and an air conditioner, and relates to the technical field of air conditioners. The method for judging the blockage of the air return port includes: controlling the air conditioner to operate in the heating mode; obtaining the opening data of the heating electronic expansion valve, the suction temperature of the compressor, the outlet temperature of the heat exchanger of the external unit, and the environment of the external unit in real time Temperature: According to the opening data, suction temperature, outlet temperature and ambient temperature, it is judged whether there is refrigerant accumulation in the external unit; when it is determined that the refrigerant accumulation occurs in the external unit, the discharge temperature and working current of the compressor are obtained; according to the discharge temperature Judging whether the air return port of the compressor is blocked according to the working current. The method for judging the blockage of the air return port provided by the present invention can accurately judge whether the air return port of the compressor is blocked according to the operating parameters of the air conditioner, thereby providing maintenance personnel with accurate maintenance directions in time and saving maintenance costs.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method and device for judging the blockage of an air return port and an air conditioner. Background technique [0002] At present, for multi-connected air conditioners, when the air return port of the compressor is blocked, it is difficult for maintenance personnel to judge without dismantling the machine, resulting in excessive maintenance costs. Contents of the invention [0003] The problem solved by the invention is that the blockage fault of the air return port of the compressor of the multi-connected air conditioner is difficult to be identified by maintenance personnel. [0004] In order to solve the above problems, the present invention provides a method for judging whether the air return port of a compressor is blocked automatically and accurately. [0005] The method for judging the blockage of the return air port provided by the embodiment of the present ...
Claims
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IPC IPC(8): F24F11/38F24F11/526F24F11/61F24F11/64F24F11/65F24F11/70F24F11/88F24F110/10F24F110/12F24F140/20
CPCF24F11/38F24F11/526F24F11/61F24F11/64F24F11/65F24F11/70F24F11/88
Inventor 张坤坤任小辉黄春
Owner NINGBO AUX ELECTRIC