Air conditioner and heat source unit
A technology for air conditioning devices and outdoor units, which is applied in air conditioning systems, lighting and heating equipment, space heating and ventilation, etc., can solve problems such as violation of the compact requirements of outdoor units, and achieve the effect of reducing the number of times
Active Publication Date: 2011-03-09
DAIKIN IND LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to solve this problem, a method of increasing the capacity of the accumulator in advance to store a large amount of surplus refrigerant has been considered, but this is against the compactness of the outdoor unit
Method used
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Embodiment Construction
[0059] [Structure of air conditioner]
[0060] figure 1 An air conditioner 1 according to an embodiment of the present invention is shown. The air conditioner 1 is a device that performs a vapor compression refrigeration cycle operation and is used for indoor cooling and heating of a building or the like. The air conditioner 1 mainly includes: a plurality of (here two) outdoor units 2, 102 as heat source units; a plurality of indoor units 4 connected in parallel thereto as utilization units; and connecting the outdoor units 2, 102 and the indoor units 4 The liquid refrigerant communication pipe 6 and the gas refrigerant communication pipe 7 are the refrigerant communication pipes. That is, the vapor compression refrigerant circuit 10 of the air conditioner 1 of the present embodiment is formed by connecting the outdoor units 2, 102, the indoor unit 4, and the liquid refrigerant communication pipe 6 and the gas refrigerant communication pipe 7.
[0061] (indoor unit)
[00...
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An air conditioner device can suppress that excessive refrigerant resorts to outdoor unit and obstructs smooth operation even if energy accumulator has small capacity. An air conditioner is provided with a plurality of outdoor units (2, 102), an indoor unit (4), a liquid refrigerant communication pipe and gas refrigerant communication pipe, and a controller. The outdoor unit has a compressor, an outdoor heat exchanger, and an accumulator. The indoor unit has an indoor expansion valve and an indoor heat exchanger. The controller starts another of the heat source units in a stopped state when it is determined that the amount of refrigerant is excessive in a heat source unit in an operating state, or performs refrigerant accumulation control for accumulating refrigerant in an accumulator in a heat source unit other than a first heat source unit in an operating state.
Description
technical field [0001] The present invention relates to an air conditioner and a heat source unit, in particular to an air conditioner with multiple heat source units in one refrigerant circuit. Background technique [0002] Conventionally, there is a multi-type air conditioner that includes a plurality of outdoor units (heat source units) and a plurality of indoor units (utilization units) in one refrigerant circuit. For example, Patent Document 1 discloses a multi-type air conditioner capable of equalizing the operating hours of a plurality of compressors while equalizing the operating hours of a plurality of outdoor units. In addition, Patent Document 2 discloses a multi-connected air conditioner including: a plurality of outdoor units having compressors, outdoor heat exchangers, and accumulators; a plurality of indoor units; a gas refrigerant communication pipe and a liquid refrigerant communication pipe; and a bypass circuit for supplying the liquid refrigerant in the ...
Claims
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IPC IPC(8): F25B13/00F25B1/00F25B49/02F24F11/02
CPCF25B2400/13F25B2313/0253F25B2313/006F25B2313/0233F25B13/00Y02E60/147F25B2600/05F24F5/0017F25B2400/19F25B2500/26F25B2313/02742F25B45/00Y02E60/14F24F11/54
Inventor 小谷拓也堀喜久次
Owner DAIKIN IND LTD