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Air conditioner defrost control method, device and air conditioner

An air conditioner and frosting technology, applied in heating and ventilation control systems, mechanical equipment, heating and ventilation safety systems, etc., can solve problems such as inaccurate defrosting judgment, and achieve the effect of solving inaccurate judgment and ensuring user experience.

Inactive Publication Date: 2018-09-04
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an air conditioner defrosting control method, device and air conditioner, which solves the problem of inaccurate judgment of the air conditioner on defrosting in the prior art

Method used

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  • Air conditioner defrost control method, device and air conditioner
  • Air conditioner defrost control method, device and air conditioner
  • Air conditioner defrost control method, device and air conditioner

Examples

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Embodiment 1

[0032] Embodiment 1. The embodiment of the present invention provides a defrosting control method for an air conditioner, such as figure 1 Shown include:

[0033] S101. When the air conditioner turns on the heating function, acquire an outdoor environment parameter and an outdoor coil temperature; wherein, the outdoor environment parameter includes: an outdoor environment temperature and an outdoor environment humidity.

[0034] It should be noted that in the prior art, only the temperature of the outdoor coil is considered as the basis for judging whether the air conditioner starts the defrosting function, so the same judging condition may or may not be applicable in different environments and geographical locations, resulting in The air conditioner cannot accurately determine whether to enable the defrosting function, and false defrosting occurs; therefore, in order to more accurately determine whether the defrosting function needs to be activated, the air conditioner defros...

Embodiment 2

[0044] Embodiment 2. The embodiment of the present invention provides an air conditioner defrosting control device 10, such as Figure 7 Shown include:

[0045] The data acquiring unit 101 is configured to acquire outdoor environment parameters and outdoor coil temperature when the air conditioner turns on the heating function; wherein, the outdoor environment parameters include: outdoor environment temperature and outdoor environment humidity.

[0046] The data processing unit 102 is configured to determine the dew point temperature according to the outdoor environment parameters acquired by the data acquisition unit 101, and determine whether the heat exchanger of the outdoor unit of the air conditioner is frosted according to the dew point temperature and the temperature of the outdoor coil.

[0047] The data processing unit 102 is further configured to control the air conditioner to start the defrosting function when it is determined that the heat exchanger of the outdoor ...

Embodiment 3

[0054] Embodiment 3. The embodiment of the present invention provides an air conditioner, including: any air conditioner defrosting control device 10 as provided in Embodiment 2. For the specific air conditioner defrosting control device, reference may be made to the relevant description in the second embodiment of the device, and details are not repeated here.

[0055] It should be noted that, in actual application, the air conditioner includes: an indoor unit and an outdoor unit, wherein the indoor unit includes: an indoor heat exchanger, an indoor heat exchanger fan; the outdoor unit includes: a compressor, an outdoor heat exchanger, an outdoor heat exchanger fan; Figure 8 As shown, among them, the four-way valve 1 is connected to the valve 5, the compressor 1 and the outdoor heat exchanger 3, the valve 5 is connected to the indoor heat exchanger 2, the indoor heat exchanger 2 is connected to the expansion valve 6, and the indoor heat exchanger 2 is connected in series Th...

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Abstract

The embodiment of the invention provides an air conditioner defrost control method, an air conditioner defrost control device and an air conditioner, relates to the technical field of air conditioners, and solves the problem that the air conditioner in the prior art is inaccurate in defrost judgment. The method comprises the steps of when the air conditioner starts a heating function, acquiring outdoor environment parameters and an outdoor coil temperature, wherein the outdoor environment parameters comprise an outdoor environment temperature and outdoor environment humidity; determining a dewpoint temperature according to the outdoor environment parameters, and determining whether a heat exchanger of an outdoor unit of the air conditioner is frosted or not according to the dew point temperature and the outdoor coil temperature; and when determining that the heat exchanger of the outdoor unit is frosted, controlling the air conditioner to start a defrosting function. The embodiment ofthe invention is applied to the manufacturing the outdoor unit.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method and device and an air conditioner. Background technique [0002] In the prior art, when the air conditioner is running in heating mode, if the outdoor ambient temperature is low, frost will form on the heat exchanger of the outdoor unit after a period of operation, and the frost will become thicker and thicker, resulting in reduced heating effect . In order to achieve better heating and minimize the problem of poor heating effect caused by frost, the frost on the outdoor heat exchanger needs to be removed after it reaches a certain thickness. For the judgment of whether the outdoor unit should enter the defrosting program, at present, it is basically judged whether the outdoor unit needs to be defrosted according to the temperature of the outdoor coil of the air conditioner and the accumulated running time of the air conditio...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/70F24F11/64F24F110/12F24F110/22
CPCF24F11/42F24F11/64F24F11/70F24F2110/12F24F2110/22
Inventor 陈胜华李本卫
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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