Air conditioner
A technology for air conditioners and compressors, applied to air conditioning systems, compressors, refrigerators, etc., which can solve the problem of limited heat storage of heat storage components 126, and achieve the effect of efficient defrosting operation
Active Publication Date: 2012-04-04
PANASONIC CORP
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Problems solved by technology
[0010] However, not only is the amount of heat stored in the heat storage member 126 inside the heat storage tank 124 limited, but also in the refrigeration cycle described in Patent Document 1, when the temperature of the heat storage member 126 is low, the heating operation cannot be performed at the same time. There is still room for improvement from the viewpoint of efficient defrosting operation while continuing to perform defrosting operation
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Embodiment Construction
[0058] The first invention provides an air conditioner, which includes: the refrigerant is connected in such a way that it sequentially flows through the compressor, the four-way valve, the indoor heat exchanger, the expansion valve, the outdoor heat exchanger, and the four-way valve during heating operation. The refrigeration cycle; and the heat storage tank with built-in heat storage components that store heat generated by the compressor and the heat storage heat exchanger, and also includes: the indoor heat exchanger and the expansion valve and the four-way valve and the compressor The heat storage bypass circuit connected between the suction ports; the defrost bypass circuit connected between the expansion valve and the outdoor heat exchanger and between the compressor outlet and the four-way valve; detects outdoor heat exchange during heating operation The outdoor heat exchanger inlet temperature detecting unit for the refrigerant inlet temperature of the heater; and the he...
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The present invention provides an air conditioner capable of conducting efficient defrosting. The air conditioner has a heat storage tank that accommodates a heat storage material for storing therein heat generated by the compressor and a heat storage heat exchanger. The air conditioner further comprises a heat storage bypass circuit to connect a refrigerant pipe between the indoor heat exchanger and the expansion valve and a refrigerant pipe between the four-way valve and an inlet port in the compressor, and a defrosting bypass circuit is provided to connect a refrigerant pipe between the expansion valve and the outdoor heat exchanger and a refrigerant pipe between an outlet port in the compressor and the four-way valve. If an outdoor heat exchanger inlet temperature sensor detects a defrosting initiation temperature, a defrosting operation is initiated. Also, if the temperature detected by the outdoor heat exchanger inlet temperature sensor is less than a heat storage material temperature rise-initiation temperature higher than the defrosting initiation temperature, and if a temperature detected by a heat storage tank temperature sensor does not reach a predetermined temperature, a control for increasing the temperature of the heat storage tank is performed.
Description
Technical field [0001] The present invention relates to an air conditioner including a heat storage tank that stores a heat storage member that stores heat generated by a compressor, and a heat storage heat exchanger that exchanges heat with the heat stored in the heat storage member. Background technique [0002] At the time of the heating operation of the heat pump air conditioner, when the outdoor heat exchanger is frosted, the four-way valve is switched so as to switch from the heating cycle to the refrigeration cycle for defrosting. In this defrosting method, although the indoor fan is stopped, there is a disadvantage that cold air is gradually released from the indoor unit and the heating feeling is lost. [0003] Therefore, it has been proposed to install a heat storage device in a compressor installed in an outdoor unit, and use waste heat of the compressor stored in the heat storage tank for defrosting during heating operation (for example, refer to Patent Document 1). [0...
Claims
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IPC IPC(8): F24F1/00F25B47/00F24F11/00
CPCY02B30/741F25B2313/02741F25B2600/0253F25B13/00Y02B30/52F25B31/006F25B49/022F25B2313/0315F25B2700/2111F25B2700/2106F25B2400/24F25B2400/04F25B2313/0314F25B2600/2501F25B2400/05F25B47/022Y02B30/70
Inventor 加守田广和十仓聪大门宽幸川添大辅
Owner PANASONIC CORP