Control method and device for air conditioner defrosting, and air conditioner
A control method and technology for air conditioning, which are applied to household refrigeration devices, defrosting, heating and ventilation control systems, etc., can solve problems such as the influence of air conditioning heating performance, and achieve the effects of reducing adverse effects, improving control accuracy, and increasing refrigerant temperature.
Active Publication Date: 2019-11-19
CHONGQING HAIER AIR CONDITIONER CO LTD +2
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Problems solved by technology
[0007] Embodiments of the present disclosure provide a control method and device for defrosting an air conditioner, and an air conditioner to solve the problem in the related art that when the outdoor heat exchanger needs to be defrosted, the air conditioner operates in the reverse cycle defrosting mode, which will affect the normal operation of the air conditioner. Technical issues that have a greater impact on heating performance
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[0025] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.
[0026] figure 1 It is a schematic flowchart of a control method for air conditioner defrosting provided by an embodiment of the present disclosure.
[0027] An embodiment of the present disclosure provides a contr...
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The invention relates to the technical field of air conditioner defrosting, and discloses a control method for air conditioner defrosting. The control method comprises the steps that under the condition that an air conditioner needs to be defrosted, a refrigerant flowing through the air conditioner of a refrigerant inlet pipeline of an outdoor heat exchanger is controlled to be heated; the outdoorcoiler temperature, the number of times of heating and the heating duration of the outdoor heat exchanger are obtained; and under the condition that the outdoor coiler temperature, the number of times of heating and the heating duration meet a first preset condition, the air conditioner is controlled to enter a reverse cycle defrosting mode. Timing of the air conditioner entering the reverse cycle defrosting mode is comprehensively judged by using the several parameters of the outdoor coiler temperature, the number of times of heating and the heating duration, and the control precision that the air conditioner is controlled to enter the reverse cycle defrosting mode is improved; and through heating operation of the refrigerant flowing through the refrigerant inlet pipeline, the temperature of the refrigerant flowing into the outdoor heat exchanger is increased, and frozen frost is melt by using the heat of the refrigerant. The invention further discloses a control device for air conditioner defrosting, and the air conditioner.
Description
technical field [0001] The present application relates to the technical field of air conditioner defrosting, for example, to a control method and device for air conditioner defrosting, and an air conditioner. Background technique [0002] At present, most of the mainstream models of air conditioners have the heat exchange function of cooling and heating. Increase the temperature of the indoor environment; during the heating process of the air conditioner, the outdoor heat exchanger of the outdoor unit acts as an evaporator that absorbs heat from the outdoor environment. Affected by the temperature and humidity of the outdoor environment, the outdoor heat exchanger It is easy to condense more frost on the heater, and when the frost accumulates to a certain thickness, the heating capacity of the air conditioner will become lower and lower. Therefore, in order to ensure the heating effect and avoid excessive frost condensation, it is necessary to The outdoor heat exchanger is ...
Claims
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IPC IPC(8): F24F11/42F24F11/64F25B47/02F25D21/08F24F110/12F24F140/20
CPCF24F11/42F24F11/64F25B47/025F25D21/08F24F2140/20F25B2347/02F25B2500/31
Inventor 许文明罗荣邦
Owner CHONGQING HAIER AIR CONDITIONER CO LTD