Multi-connected air conditioning system and its defrosting control method
A multi-connected air conditioner and control valve technology, which is applied in air conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve problems such as low comfort, user misunderstanding, shutdown, etc., to improve comfort, The effect of improving reliability
Active Publication Date: 2018-04-06
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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- 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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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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The invention discloses a multi-connected air-conditioning system and a defrosting control method thereof. The multi-connected air conditioning system includes: an indoor unit module and a plurality of parallel outdoor unit modules, and each outdoor unit module includes: a compressor, a four-way valve, an outdoor heat exchanger, a first throttling element, a first control valve, a second The second control valve, the third control valve, the fourth control valve and the fifth control valve, the first control valve is connected between the first throttling element and the indoor unit module. The second control valve is connected to the first throttling element, and the second control valve is connected to the first common pipeline. The third control valve is connected to the fourth valve port, the third control valve is connected to the second common pipeline, and the second common pipeline is connected to the indoor unit module. The fourth control valve is respectively connected with the second valve port and the first public pipeline. The fifth control valve is connected with the first valve port and the second common pipeline. According to the multi-connected air conditioning system of the embodiment of the present invention, continuous heating is realized during defrosting, and the indoor unit module does not stop, thereby improving comfort.
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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IPC IPC(8): F24F1/06F24F11/42F24F11/65F24F11/67F25B41/04F25B41/06F25B47/02F25B41/20F25B41/24F25B41/37
CPCF24F1/06F24F11/89F25B47/02F25B2313/02522F25B41/20F25B41/30
Inventor 廖海防邓建云
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD