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Control method for air conditioner, control device for air conditioner and air conditioner

A control method and control device technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve the problem of reducing the air volume of heat exchange in outdoor heat exchangers, long cycle time, and heat exchange of outdoor heat exchangers. Improve the utilization rate of heat, slow down the cycle speed, and slow down the frosting speed

Active Publication Date: 2017-11-28
WUHAN REFRIGERATION EQUIP OF MIDEA GROUP +1
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Problems solved by technology

[0002] At present, when the air conditioner is in heating mode, especially when it is used in an environment with low outdoor temperature in winter, the temperature of its outdoor heat exchanger is lower than the temperature of the external environment, so the water vapor in the external environment will condense in the outdoor heat exchange Especially when the humidity of the outdoor air is relatively high, the frosting problem of the outdoor heat exchanger will be more serious, and the frosting will reduce the air volume of the outdoor heat exchanger for heat exchange, resulting in outdoor heat exchange The heat exchange effect of the air conditioner becomes worse, which affects the heat exchange performance of the entire air conditioner
In order to ensure the heating effect, on the one hand, it is necessary to minimize frosting, on the other hand, it is necessary to defrost the outdoor heat exchanger, and at the same time speed up the defrosting speed, so as to drain the ice water on the chassis of the outdoor unit of the air conditioner. At present, the more common method is to use the four-way valve of the air conditioner to switch the direction of the air conditioner from the heating mode to the cooling mode, so that the high-temperature and high-pressure refrigerant discharged from the compressor enters the outdoor heat exchanger and melts the outdoor heat exchanger. The frost on the air conditioner, the cycle of this traditional defrosting method is relatively long, which seriously affects the heating effect and stability of the air conditioner

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[0071] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0072] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0073] Refer below figure 1 A method for controlling an air conditioner provided according to some embodiments of the present invention will be described.

[0074] Specifically, such as figure 1 As shown, ...

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Abstract

The invention provides a control method for an air conditioner, a control device for the air conditioner and the air conditioner. The control method for the air conditioner comprises the steps that the temperature T1 of a coil pipe when the air conditioner is frosted for the first time is recorded; the temperature of the outdoor environment is detected, and a preset strategy and a first preset temperature corresponding to the temperature range of the temperature of the outdoor environment is found out according to the temperature of the outdoor environment; and after the air conditioner finishes frosting for the first time and is switched into a heating mode, the temperature T of the coil pipe is detected, and when T-T1 is less than or equal to the found first preset temperature, the opening degree of an expansion valve and the on-off states of a first heating element are controlled according to the found preset strategy. According to the scheme of the control method for the air conditioner, the control device for the air conditioner and the air conditioner, different treatment strategies can be adopted when the air conditioner is about to be frosted according to the temperature of the outdoor environment so as to control the operation of a heating element in the coil pipe and / or a heating element in an indoor unit and the operation of the expansion valve so that the defrosting period can be shortened, the temperature fluctuation in a room can be reduced, and therefore continuous heating can be achieved.

Description

technical field [0001] The present invention relates to the field of household appliances, and more specifically, to an air conditioner control method, an air conditioner control device, and the air conditioner. Background technique [0002] At present, when the air conditioner is in heating mode, especially when it is used in an environment with low outdoor temperature in winter, the temperature of its outdoor heat exchanger is lower than the temperature of the external environment, so the water vapor in the external environment will condense in the outdoor heat exchange Especially when the humidity of the outdoor air is relatively high, the frosting problem of the outdoor heat exchanger will be more serious, and the frosting will reduce the air volume of the outdoor heat exchanger for heat exchange, resulting in outdoor heat exchange The heat exchange effect of the air conditioner becomes worse, which affects the heat exchange performance of the entire air conditioner. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 蔡国健
Owner WUHAN REFRIGERATION EQUIP OF MIDEA GROUP
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