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Continuous heating defrosting control method, device, air conditioning unit and equipment

An air-conditioning unit and control method technology, applied in the direction of mechanical equipment, climate sustainability, high-efficiency regulation technology, etc., can solve problems such as stopping heating, achieve the effect of improving comfort and reducing the impact of fluctuations

Active Publication Date: 2020-12-18
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a defrosting control method and device capable of continuous heating, a multi-system direct expansion air-conditioning unit and equipment, so as to solve the problem in the prior art that the unit defrosting needs to stop heating

Method used

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  • Continuous heating defrosting control method, device, air conditioning unit and equipment
  • Continuous heating defrosting control method, device, air conditioning unit and equipment
  • Continuous heating defrosting control method, device, air conditioning unit and equipment

Examples

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Embodiment 1

[0067] figure 1 It is a flow chart of the defrosting control method capable of continuous heating provided by Embodiment 1 of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0068] S101. Determine the systems that meet the defrosting conditions in the multi-system direct expansion air-conditioning units.

[0069] Among them, the multi-system direct expansion air conditioning unit includes at least two systems, each system has the same function, and each system shares the indoor fan. figure 2 It is the system schematic diagram of the multi-system direct expansion air-conditioning unit provided by Embodiment 1 of the present invention, as shown in figure 2 As shown, the air conditioning unit includes N systems, and the N systems share the indoor fan and use different flow paths in the indoor heat exchanger. Each system includes: compressor 1, four-way reversing valve 2, outdoor heat exchanger 3, outdoor fan 4, throttle valve ...

Embodiment 2

[0097] On the basis of the first embodiment above, this embodiment provides a specific implementation manner of controlling the heating temperature of the unit during the defrosting and heating process of the unit. Explanations of terms that are the same as or corresponding to those in the foregoing embodiments will not be repeated in this embodiment.

[0098] Such as Figure 4 As shown, the method includes the following steps:

[0099] S401. Determine the systems that meet the defrosting conditions in the multi-system direct expansion air-conditioning units.

[0100] S402. Select the target system from the systems satisfying the defrosting condition according to the preset condition.

[0101] S403, controlling the target system to enter the defrosting mode, controlling other systems in the multi-system direct expansion air conditioning unit except the target system to continue to operate in the heating mode, and controlling the indoor fan to keep running.

[0102] S404, du...

Embodiment 3

[0111] Based on the same inventive concept, this embodiment provides a defrosting control device capable of continuous heating, which can be used to implement the defrosting control methods provided by the above-mentioned embodiments, such as Figure 6 As shown, the device includes:

[0112] A system determination module 610, configured to determine the system that satisfies the defrosting condition in the multi-system direct expansion air-conditioning unit;

[0113] A target selection module 620, configured to select a target system from systems satisfying defrosting conditions according to preset conditions;

[0114] The system control module 630 is used to control the target system to enter the defrosting mode, control other systems in the multi-system direct expansion air conditioning unit except the target system to continue to operate in the heating mode, and control the indoor fan to keep running.

[0115] Optionally, the target selection module 620 includes:

[0116]...

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Abstract

The invention discloses a continuously-heating defrosting control method and device, an air conditioner unit and equipment. The method comprises the steps of determining systems, meeting the defrosting condition, in a multi-system direct expansion type air conditioning unit; according to the preset condition, selecting a target system from the systems meeting the defrosting condition according tothe preset condition; and controlling the target system to enter in the defrosting mode, controlling other systems, except for the target system, in the multi-system direct expansion type air conditioning unit to continuously operate in the heating mode, and controlling an indoor fan to kept running. Subsystem defrosting is adopted, according to the defrosting condition and the preset condition, the target system in the air conditioner unit is determined, the target system is controlled to enter in defrosting, the remaining systems still keep heating, the indoor fan is kept running, on the basis of not increasing cost, continuous heating is achieved, the problem that heating needs to be stopped during unit defrosting is solved, the fluctuation influence of defrosting on indoor temperatureis reduced, and the user comfort is improved.

Description

technical field [0001] The invention relates to the technical field of air-conditioning control, in particular to a defrosting control method and device capable of continuous heating, a multi-system direct expansion air-conditioning unit and equipment. Background technique [0002] When the air conditioner is in the heating mode under low temperature conditions, due to the low outdoor temperature and high humidity, frost is easy to form on the surface of the outdoor heat exchanger. If the defrosting cannot be performed in time, the heat exchange effect of the system will be reduced. [0003] For air-cooled direct expansion air-conditioning units, when the unit enters the defrosting mode, the traditional method is to turn off the outdoor fan and the indoor fan, and defrost by the compressor. However, this method will stop the heat supply to the room, causing the indoor temperature The fluctuation is large, and the indoor fan is stopped, and the defrosting is only done by the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/65F24F11/42F24F11/61F24F11/77
CPCF24F11/42F24F11/61F24F11/64F24F11/65F24F11/77Y02B30/70
Inventor 唐育辉王传华石伟田锦坤罗来平
Owner GREE ELECTRIC APPLIANCES INC