Air return port unblocking and blocking judgment method and device 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: 2021-07-09
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 an air return port unblocking and blocking judgment method and device and an air conditioner, and relates to the technical field of air conditioners. The air return port unblocking and blocking judgment method comprises the steps that the air conditioner is controlled to run in a heating mode; opening degree data of a heating electronic expansion valve, the air suction temperature of a compressor, the outlet temperature of an outdoor unit heat exchanger and the environment temperature of an outdoor unit are obtained in real time; according to the opening degree data, the air suction temperature, the outlet temperature and the environment temperature, whether refrigerant accumulation happens to the outdoor unit or not is judged; under the condition that it is judged that refrigerant accumulation happens to the outdoor unit, the exhaust temperature and working current of the compressor are obtained; and whether an air return port of the compressor is blocked or not is judged according to the exhaust temperature and the working current. According to the air return port unblocking and blocking judgment method, whether the air return port of the compressor is blocked or not can be accurately judged according to running parameters of the air conditioner, and therefore an accurate maintenance direction can be provided for maintenance personnel in time, and the maintenance cost is saved.
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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Login to View More 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