JPH0397162U

JPH0397162U -

Info

Publication number: JPH0397162U
Application number: JP266390U
Authority: JP
Priority date: 1990-01-18
Filing date: 1990-01-18
Publication date: 1991-10-04

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す空調装置の冷媒
回路図、第２図は従来の空調装置の冷媒回路図、
第３図は蓄熱材の状態の推移を示す図、第４図は
空調装置の制御回路図、第５図は空調装置の動作
を示すフローチヤートである。１……冷媒回路、２……圧縮機、３……四方向
切換え弁、４……室内熱交換器、５……第１の膨
張弁、６……室外熱交換器、７……第１の開閉弁
、８……第２の膨張弁、９……第１の冷媒回路、
１０……第２の冷媒回路、１１……第２の開閉弁
、１２……蓄熱装置、１３……第３の膨張弁、１
４……第３の冷媒回路、１５……第３の開閉弁、
１６……第４の開閉弁、１７……温度センサ、２
４……通電駆動部、３０……制御装置。 FIG. 1 is a refrigerant circuit diagram of an air conditioner showing an embodiment of the present invention, FIG. 2 is a refrigerant circuit diagram of a conventional air conditioner,
FIG. 3 is a diagram showing the transition of the state of the heat storage material, FIG. 4 is a control circuit diagram of the air conditioner, and FIG. 5 is a flow chart showing the operation of the air conditioner. DESCRIPTION OF SYMBOLS 1... Refrigerant circuit, 2... Compressor, 3... Four-way switching valve, 4... Indoor heat exchanger, 5... First expansion valve, 6... Outdoor heat exchanger, 7... First on-off valve, 8... second expansion valve, 9... first refrigerant circuit,
10... Second refrigerant circuit, 11... Second on-off valve, 12... Heat storage device, 13... Third expansion valve, 1
4...Third refrigerant circuit, 15...Third on-off valve,
16... Fourth on-off valve, 17... Temperature sensor, 2
4... Energization drive unit, 30... Control device.

Claims

[Claims for Utility Model Registration] (1) An indoor heat exchanger, a first expansion valve, and an outdoor heat exchanger are sequentially connected to a compressor and a refrigerant circuit extending from a high-pressure side to a low-pressure side of the compressor, and In an air conditioner equipped with a four-way switching valve that mutually switches connections between an indoor heat exchanger and an outdoor heat exchanger for the high-pressure side and low-pressure side of the compressor, the first refrigerant with the indoor heat exchanger interposed A second refrigerant circuit is connected in parallel with the circuit, the second refrigerant circuit is provided with a heat storage device made of a heat storage material capable of supercooling, and a first refrigerant circuit is connected between the indoor heat exchanger and the first expansion valve. a second expansion valve in a refrigerant circuit between the heat storage device and the first expansion valve; a third expansion valve in a second refrigerant circuit between the heat storage device and the first expansion valve; and a refrigerant circuit between the four-way switching valve and the outdoor heat exchanger and a second refrigerant circuit between the heat storage device and the second on-off valve, which are connected by a third refrigerant circuit; It is characterized by comprising a third on-off valve that opens and closes the refrigerant circuit, a fourth on-off valve that opens and closes the refrigerant circuit with an outdoor heat exchanger interposed therebetween, and activation means that activates the heat storage device. air conditioner. (2) An indoor heat exchanger, a first expansion valve, and an outdoor heat exchanger are sequentially connected to a compressor and a refrigerant circuit extending from a high-pressure side to a low-pressure side of the compressor, and the high-pressure side and low-pressure side of the compressor are In an air conditioner equipped with a four-way switching valve that mutually switches connections between an indoor heat exchanger and an outdoor heat exchanger, a second refrigerant circuit is connected in parallel to a first refrigerant circuit with an indoor heat exchanger interposed therebetween. The circuits are connected, the second refrigerant circuit is provided with a heat storage device made of a heat storage material capable of supercooling, and the first refrigerant circuit between the indoor heat exchanger and the first expansion valve is provided with a second expansion valve. a third expansion valve in a second refrigerant circuit between the heat storage device and the first expansion valve; a first on-off valve that opens and closes the first refrigerant circuit; a four-way switching valve; A third refrigerant circuit connects a refrigerant circuit between the heat exchanger and a second refrigerant circuit between the heat storage device and the second on-off valve, and opens and closes the third refrigerant circuit. an on-off valve, a fourth on-off valve that opens and closes a refrigerant circuit with an outdoor heat exchanger interposed therebetween, an activation means that activates the heat storage device, and a temperature control valve that controls the temperature of the first refrigerant circuit in the vicinity of the indoor heat exchanger. A temperature sensor is used to detect the temperature, and a lower limit temperature during heating operation is set relative to the temperature detected by the temperature sensor, and when the detected temperature during heating operation is equal to or higher than the lower limit temperature, a third opening/closing valve is closed and other opening/closing valves are closed. A control device that opens the valve, closes each of the second and fourth on-off valves, opens each of the first and third on-off valves when the temperature is below the lower limit temperature, and activates and starts the heat storage device. An air conditioner comprising: