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Air conditioner low-temperature heating starting method and air conditioner

An air conditioner and low-temperature technology, which is applied to the low-temperature heating start-up method of air conditioners and the field of air conditioners, can solve problems such as low system reliability, and achieve the effect of solving low system reliability and improving reliability

Inactive Publication Date: 2018-12-07
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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AI Technical Summary

Problems solved by technology

[0005] This application provides a low-temperature heating start-up method of an air conditioner and an air conditioner, which solve the technical problem of low system reliability caused by the evaporation of liquid refrigerant at the initial stage of the low-temperature heating start-up of the existing air conditioner

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  • Air conditioner low-temperature heating starting method and air conditioner

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Embodiment Construction

[0013] The specific implementation manners of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0014] The low-temperature heating start-up method of the air conditioner proposed by this application, such as figure 1 shown, including the following steps:

[0015] Step S11: The air conditioner starts low-temperature heating.

[0016] Including turning on the air conditioner to perform low-temperature heating, or restarting the low-temperature heating when the air conditioner is running in a low-temperature heating sleep mode.

[0017] Step S12: Acquiring and judging whether the outdoor ambient temperature is lower than the set temperature.

[0018] Read the outdoor temperature sensor to obtain the outdoor ambient temperature, and judge whether it is lower than the set temperature according to the outdoor ambient temperature. If it is lower than the set temperature, it means that the liquid refrigerant has migrat...

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Abstract

The invention discloses an air conditioner low-temperature heating starting method and an air conditioner. The method comprises the following steps that an outdoor environment temperature is obtained,and weather the outdoor environment temperature is lower than a set temperature or not is judged; if the outdoor environment temperature is lower than the set temperature, the air conditioner is controlled to carry out refrigeration; whether a running state meets a setting condition or not is judged by a refrigerating device; and if the running state meets the setting condition, the air conditioner is controlled to start the low-temperature heating. By operating the refrigeration mode in an initial heating starting stage, liquid refrigerants of an outdoor heat exchanger and a compressor are transferred to an indoor unit, and the liquid refrigerants are evaporated and returned to the compressor through an indoor heat exchanger; compared with an existing method of evaporating the liquid refrigerants through more heat generated by the compressor, the high and low voltage of a system can be rapidly established, and the reliability of the system is improved; compared with the mode that theliquid refrigerants are evaporated through electric heating, the liquid refrigerants can be sufficiently evaporated, and the reliability of the system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner low-temperature heating starting method and the air conditioner. Background technique [0002] After the air conditioner enters the low-temperature heating sleep mode, due to the large temperature difference between indoor and outdoor, most of the refrigerant in the air conditioner will migrate to the outdoor unit heat exchanger and compressor with a relatively low temperature within a certain period of time. [0003] In this case, if the air conditioner restarts from the low-temperature heating sleep mode, the liquid refrigerant in the heat exchanger of the outdoor unit and the compressor needs to rely on the heat generated by the compressor to evaporate, which requires the compressor to generate more heat to be able to The liquid refrigerant is completely evaporated; therefore, at the initial stage of low-temperature heating start-up, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/67F24F11/84F24F11/77F24F11/86F24F110/12
CPCF24F11/64F24F11/67F24F11/77F24F11/84F24F11/86F24F2110/12Y02B30/70
Inventor 李达君赵宇开常骞阳婉
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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