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Multi-connected air conditioning system and defrosting control method thereof

A multi-connected air conditioner and control valve technology, applied in air conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problems of low comfort, user misunderstanding, shutdown, etc. The effect of improving reliability

Active Publication Date: 2015-07-08
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the entire cooling and defrosting process, the indoor machine will shut down and last for a few minutes to ten minutes, which is less comfortable to use and is likely to cause misunderstandings by users

Method used

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  • Multi-connected air conditioning system and defrosting control method thereof
  • Multi-connected air conditioning system and defrosting control method thereof
  • Multi-connected air conditioning system and defrosting control method thereof

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Embodiment Construction

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0028] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orient...

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PUM

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Abstract

The invention discloses a multi-connected air conditioning system and a defrosting control method thereof. The multi-connected air conditioning system comprises an indoor unit module and a plurality of outdoor unit modules connected in parallel, wherein each outdoor unit module comprises a compressor, a four-way valve, an outdoor heat exchanger, a first throttling element, a first control valve, a second control valve, a third control valve, a fourth control valve, and a fifth control valve; each first control valve is connected between the corresponding first throttling element and the indoor unit module; each second control valve is connected with the corresponding first throttling element; and each second control valve is connected to a first public pipeline; each third control valve is connected with a corresponding fourth control valve port; each third control valve is connected to a second public pipe; and the second public pipe is connected with the indoor unit module; each fourth control valve is connected with a second valve port and the first public pipe; each fifth control valve is connected with a first valve port and the second public pipe. According to the invention, continuous heating during defrosting is realized, and the indoor unit module does not stop, so that comfortability is improved.

Description

technical field [0001] The invention relates to the technical field of electric appliance manufacturing, in particular to a multi-connected air-conditioning system and a defrosting control method thereof. Background technique [0002] At present, whether it is a parallel module multi-connected air-conditioning system or an independent multi-connected air-conditioning system, during the defrosting period, the entire system must be converted from the heating mode to the cooling mode to remove the frost on the outdoor heat exchanger. During the defrosting process, the indoor unit must turn off the indoor fan to prevent the indoor heat from being taken away during the defrosting process. The indoor heat exchanger will experience frost, and sometimes it will cause abnormal noise due to rapid thermal expansion and contraction, and it will shut down. After defrosting, when the system just switches to normal heating mode, anti-cold wind control is required, and the indoor fan can on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/06F24F11/02F25B41/04F25B41/06F25B47/02F25B41/20F25B41/24F25B41/37
CPCF24F1/06F24F11/89F25B47/02F25B2313/02522F25B41/20F25B41/30
Inventor 廖海防邓建云
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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