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Multi-split air conditioner defrosting control method and air conditioner multi-split air conditioner system

A multi-connected system and control method technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as single heat source, long defrosting time, and affecting user comfort experience

Active Publication Date: 2018-11-13
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when various air conditioner manufacturers use multi-connected air conditioners to heat and defrost, all the fans of the internal unit stop running. At this time, all the defrosting heat comes from the work of the compressor, and the heat source is relatively single.
The defrosting time occupies about 1 / 10 of the heating cycle, and the defrosting time is relatively long, which affects the user's comfort experience

Method used

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  • Multi-split air conditioner defrosting control method and air conditioner multi-split air conditioner system
  • Multi-split air conditioner defrosting control method and air conditioner multi-split air conditioner system
  • Multi-split air conditioner defrosting control method and air conditioner multi-split air conditioner system

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Effect test

no. 1 example

[0035] Please refer to figure 2 , the embodiment of the present invention provides a multi-line defrosting control method. The multi-connection defrosting control method is applied to the above-mentioned air-conditioning multi-connection system 1 . Such as figure 2 As shown, the above multi-line defrosting control method includes the following steps:

[0036] Step S101, when a defrosting instruction is received, the cumulative running time of each indoor unit 3 is obtained.

[0037] In the embodiment of the present invention, the above-mentioned cumulative running time may be the sum of the durations of each heating operation of each indoor unit 3 within a predetermined period of time. Optionally, step S101 may be implemented in the following manner: respectively counting the duration of each period of heating operation of each indoor unit 3 within a predetermined period. The accumulated running time of each indoor unit 3 is then obtained according to the heating operati...

no. 2 example

[0060] Please refer to Figure 4 , another part of the schematic diagram of the multi-connected air conditioner system 1 provided by the embodiment of the present invention. Such as Figure 4 As shown, the multi-connected air conditioner system 1 also includes: a processing unit 5, an acquisition unit 4 and a control unit 6, the acquisition unit 4 and the control unit 6 are respectively electrically connected to each indoor unit 3, and the processing unit 5 is respectively connected to the The acquisition unit 4 and the control unit 6 are electrically connected.

[0061] The acquisition unit 4 is configured to record the heating operation time of each indoor unit 3 within a predetermined period, and feed it back to the processing unit 5 .

[0062] The processing unit 5 is configured to obtain the cumulative running time of each indoor unit 3 when receiving the defrosting instruction.

[0063] The processing unit 5 is configured to divide the plurality of indoor units 3 into...

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Abstract

The invention provides a multi-split air conditioner defrosting control method and an air conditioner multi-split air conditioner system. The multi-split air conditioner defrosting control method is applied to the air conditioner multi-split air conditioner system. The air conditioner multi-split air conditioner system comprises a plurality of indoor units. The multi-split air conditioner defrosting control method comprises the steps that when a defrosting instruction is received, the accumulated running time of each indoor unit is obtained; according to the accumulated running time, the multiple indoor units are divided into the common indoor units and the target indoor units; and when the preset time duration is reached after the defrosting instruction is received, inner draught fans ofthe common indoor units are controlled to be stopped, and inner draught fans of the target indoor units are controlled to run at the high wind gear till defrosting is over. In the defrosting period, except a compressor acts and provides the defrosting heat, in the high-wind-gear running process of the target indoor units, heat can be absorbed from the corresponding installing indoor space, heat energy is provided for defrosting, accordingly, the defrosting speed is increased, and bad experience brought to users due to the too long defrosting time is avoided.

Description

technical field [0001] The invention relates to the technical field of defrosting, in particular to a multi-connection defrosting control method and an air conditioner multi-connection system. Background technique [0002] During the heating process of the air conditioner, frost will form on the evaporator of the outdoor unit due to the temperature difference. If frost occurs in the air conditioner and is not dealt with in time, it will directly affect the use of the air conditioner. [0003] The defrosting function has become one of the necessary functions of every air conditioner. At present, when various air conditioner manufacturers use multi-connected air conditioners for heating and defrosting, all the fans of the internal units stop running. At this time, all the defrosting heat comes from the work of the compressor, and the heat source is relatively single. The defrosting time occupies about 1 / 10 of the heating cycle, and the defrosting time is relatively long, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/42F24F11/61F24F11/77F24F11/38F24F11/64
CPCF24F11/38F24F11/42F24F11/61F24F11/64F24F11/77Y02B30/70
Inventor 刘合心黄春任小辉陈东陈华
Owner NINGBO AUX ELECTRIC
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