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Heat pump system, air conditioner, outdoor unit and control method of outdoor unit

A control method and technology for outdoor units, which are applied in the fields of outdoor units and control of outdoor units, air conditioners, and heat pump systems, can solve problems such as uneven defrosting of outdoor units, reduce energy consumption, improve reliability, and reduce defrosting the effect of time

Pending Publication Date: 2019-05-24
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology

[0003] In order to solve the technical problem of uneven defrosting of outdoor units, a heat pump system, air conditioner, outdoor unit and control method for outdoor units are provided to defrost according to frosting conditions

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  • Heat pump system, air conditioner, outdoor unit and control method of outdoor unit
  • Heat pump system, air conditioner, outdoor unit and control method of outdoor unit
  • Heat pump system, air conditioner, outdoor unit and control method of outdoor unit

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] like figure 1 The outdoor unit shown includes an outdoor heat exchanger, and the outdoor heat exchanger includes at least two heat exchange parts 1 arranged in parallel, and a flow regulating mechanism is arranged between each heat exchange part 1 and the compressor 2, and the opening degree of the flow regulating mechanism 2 is proportional to the degree of frosting on the heat exchange part, and the degree of frosting is used to adjust the opening degree of the flow regulating mechanism 2, so that the high-temperature and high-pressure refrigerant entering the corresponding heat exchange p...

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Abstract

The invention provides a heat pump system, an air conditioner, an outdoor unit and a control method of the outdoor unit. The outdoor unit comprises an outdoor heat exchanger, the outdoor heat exchanger comprises two or more heat exchange parts arranged in parallel, a flow regulating mechanism is arranged between each heat exchange part and a compressor, and the open degrees of the flow regulatingmechanisms are proportional to the frosting degrees on the heat exchange parts. According to the heat pump system, the air conditioner, the outdoor unit and the control method of the outdoor unit, theoutdoor heat exchanger of the outdoor unit is divided into an upper part and a lower part, the frosting degree of the corresponding heat exchange part is detected through the pressure drop of airflow, the open degree of the corresponding flow regulating mechanism is regulated according to the frosting degree, thus targeted defrosting is achieved, defrosting reliability is improved, the defrostingtime is shortened, and energy consumption of the heat pump system during defrosting is effectively lowered.

Description

technical field [0001] The invention relates to the technical field of defrosting structures, in particular to a heat pump system, an air conditioner, an outdoor unit and a control method for the outdoor unit. Background technique [0002] As an efficient winter heating method, air source heat pumps are being widely promoted due to their high heating efficiency and environmental protection. However, during the operation of the air source heat pump, when the ambient temperature is lower than 0°C, the moisture in the air will condense and form frost on the surface of the fins of the outdoor heat exchanger. As the heat pump continues to work, the frost layer will gradually thicken The increase of the frost layer not only affects the heat transfer, but also reduces the cross-sectional area of ​​the air flowing between the fins, which significantly reduces the heating effect of the heat pump. Therefore, when the heat pump air conditioner is used in winter, how to defrost is an i...

Claims

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Application Information

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IPC IPC(8): F24F1/16F24F11/42F24F11/64F24F11/89F24F13/30F24F11/61F24F140/10F24F110/12
Inventor 宋文龙曹勋焦华超周冰张仕强
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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