Air conditioner defrosting method and air conditioner

A technology of air conditioning and defrosting time, which is applied to mechanical equipment, heating and ventilation control systems, heating and ventilation safety systems, etc., and can solve problems such as long defrosting time, poor user experience, and long time-consuming

Active Publication Date: 2021-03-12
HISENSE (GUANGDONG) AIR CONDITIONER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Enter the defrosting heating process according to the shutdown defrosting conditions. Although this defrosting mode can better complete the defrosting function, but when the ambient temperature is high, the liquid refrigerant has little impact on the compressor. If this method is still used For defros...

Method used

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  • Air conditioner defrosting method and air conditioner
  • Air conditioner defrosting method and air conditioner
  • Air conditioner defrosting method and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] When the detected outdoor ambient temperature Tout=8°C, it is judged as a high temperature area, and the air conditioner adopts non-stop defrosting.

Embodiment 2

[0063] When the detected outdoor ambient temperature Tout=6°C, it is judged that the air conditioner is working in the middle temperature zone. If the indoor ambient temperature Tin=12°C and the defrosting time of the air conditioner=8 minutes, then the shutdown defrost is adopted.

Embodiment 3

[0065] When the outdoor ambient temperature Tout = 5°C, it is judged that the air conditioner is working in the middle temperature zone. If the indoor ambient temperature Tin = 16°C and the defrosting time of the air conditioner = 4 minutes, it is considered that the frost on the outdoor heat exchanger of the air conditioner is not very thick at this time. , the environment is not very harsh, and the air conditioner is in a relatively good working environment. Therefore, when the air conditioner turns to defrosting, non-stop defrosting can be used. After defrosting, the compressor does not stop working, but directly switches to heating work.

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Abstract

The invention discloses an air conditioner defrosting method and an air conditioner. The air conditioner defrosting method comprises the steps that whether the air conditioner is in a heating mode ornot is judged; if yes, the indoor environment temperature, the outdoor environment temperature, the outdoor coil pipe temperature and the last defrosting time are detected; whether the air conditionermeets defrosting conditions or not is judged; if yes, which the temperature area of the outdoor environment temperature is located in is further judged, specifically, the temperature areas is composed of a low-temperature area, a medium-temperature area and a high-temperature area; if the outdoor environment temperature is in the low-temperature area, a defrosting mode is entered according to a shutdown defrosting mode; if the outdoor environment temperature is in the high-temperature area, a defrosting mode is entered according to a non-shutdown defrosting mode; and if the outdoor environment temperature is in the medium-temperature area, the defrosting mode is further judged according to the indoor environment temperature and the last defrosting time. Therefore, the defrosting control rule is optimized, the defrosting waiting time is shortened, the refrigerating and heating conversion time is shortened, and the comfort of a user using the air conditioner in the heating process is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting method and an air conditioner. Background technique [0002] When the air conditioner is in heating operation, in order to improve the continuous heating effect of the air conditioner, it is necessary to perform timely and effective defrosting work on the outdoor coil of the air conditioner. The existing common defrosting mode is to detect the outdoor coil temperature Tw°C and the outdoor ambient temperature Tout, and use the outdoor ambient temperature Tout, the difference ΔTc between the outdoor ambient temperature Tout and the outdoor coil temperature Tw as the basis for defrosting judgment. When the air conditioner meets the conditions for entering defrosting, it will enter defrosting. Once the parameters for judging entering defrosting are set, the air conditioner will control defrosting according to this mode. [0003] Generally, whe...

Claims

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Application Information

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IPC IPC(8): F24F11/42F24F11/64F24F11/65F24F11/61F24F110/12F24F140/20
CPCF24F11/42F24F11/64F24F11/65F24F11/61F24F2110/12F24F2140/20
Inventor 张罡朱磊
Owner HISENSE (GUANGDONG) AIR CONDITIONER
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