Air conditioner anti-freezing control method and air conditioner
A control method and technology for an air conditioner, which are applied in the directions of control input involving air characteristics, space heating and ventilation control input, heating and ventilation control systems, etc., can solve problems affecting the normal use of air conditioners by users, etc. Effects of ice problems
Active Publication Date: 2018-06-01
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology
However, this protective measure will affect the normal use of the air conditioner by the user
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[0031] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] The solution of the embodiment of the present invention is mainly based on the temperature detected by the coil sensor of the evaporator, and by adjusting the opening degree of the electronic expansion valve, the exhaust gas temperature is introduced into the evaporator of the indoor unit, so that the temperature of the evaporator is properly raised and the air conditioner is kept running. In the case of the air conditioner, it can effectively realize the low-temperature anti-freezing control of the air conditioner and solve the problem of icing of the evaporator.
[0033] Specifically, refer to figure 1 and figure 2 , figure 1 It is a schematic diagram of the pipeline structure of the air conditioner according to the embodiment of the present invention; figure 2 It is a schematic flowchart of a preferred ...
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The invention discloses an air conditioner anti-freezing control method and an air conditioner. The air conditioner comprises a loop composed of an outdoor condenser, an indoor evaporator, a compressor, a four-way valve and a throttling device, wherein an electronic expansion valve is connected between the condenser and the evaporator. The method comprises the steps of detecting the temperature of a coil sensor of the evaporator after starting the air conditioner and operating refrigeration; and controlling the opening of the electronic valve according to the temperature of the coil sensor of the evaporator and a preset threshold value to prevent the evaporator from icing. By using the air conditioner anti-freezing control method and the air conditioner, the low-temperature and low-pressure anti-freezing control of the air conditioner is effectively realized under the condition that the operation of the air conditioner is kept, so that the icing problem of the air conditioner is solved.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner anti-freezing control method and an air conditioner. Background technique [0002] At present, when the air conditioner is still running for refrigeration when the ambient temperature is low, or the low pressure is too low due to system problems, and the evaporator is frozen, it usually stops running for protection. [0003] The existing protection measures are generally to stop the compressor and wait for the evaporator to heat up and then start it automatically. But this protective measure can affect the user's normal use of the air conditioner. Contents of the invention [0004] The main purpose of the present invention is to provide an air conditioner anti-freezing control method and the air conditioner, aiming at effectively realizing the low-temperature and low-pressure anti-freezing control of the air conditioner without affecting the user's ...
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IPC IPC(8): F24F11/84F24F11/64F24F11/61F24F140/20
CPCF24F11/30F24F11/62F24F11/64F24F11/83F24F11/84F24F2110/00
Inventor 杨晓东
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD