Split type cold and warm air conditioner

Abstract

The present invention relates to a split type cold and warm air conditioner for solving problems of insufficient performances and inconvenience in use. The split type cold and warm air conditioner includes an air conditioning system having an outdoor unit and an indoor unit. The outdoor unit includes a first heat exchanger, a second heat exchanger, a first fan, a compressor, an accumulator and a capillary tube. The indoor unit includes a third heat exchanger, a fourth heat exchanger and a second fan. A first refrigerant circulation loop and a second refrigerant circulation loop can be constituted by using pipelines and solenoid valves to connect the above-mentioned components. The invention provides both high performances for cold and warm air functions.

What is claimed is: 
     
         1 . A split type cold and warm air conditioner, comprising:
 an air conditioning system comprising an outdoor unit and an indoor unit, wherein the outdoor unit comprises a first heat exchanger, a second heat exchanger, a first fan. a compressor, an accumulator and a capillary tube, and the indoor unit comprises a third heat exchanger, a fourth heat exchanger and a second fan;   a first pipeline configured with a first three-way joint and utilized for connecting the first heat exchanger and the second heat exchanger;   a second pipeline configured with a second three-way joint and utilized for connecting the third heat exchanger and the fourth heat exchanger;   a third pipeline comprising a first end connected to the compressor and a second end connected to a third three-way joint;   a fourth pipeline configured with a first solenoid valve, the fourth pipeline comprising a first end connected to the third three-way joint and a second end connected to the second heat exchanger;   a fifth pipeline configured with the capillary tube, the fifth pipeline comprising a first end connected to the first heat exchanger and a second end connected to the third heat exchanger;   a sixth pipeline configured with a second solenoid valve, the sixth pipeline comprising a first end connected to the second three-way joint and a second end connected to the accumulator;   a seventh pipeline configured with a third solenoid valve, the seventh pipeline comprising a first end connected to the fourth heat exchanger and a second end connected to the third three-way joint;   an eighth pipeline configured with a fourth solenoid valve, the eighth pipeline comprising a first end connected to the accumulator and a second end connected to the first three-way joint; and   a ninth pipeline comprising a first end connected to the accumulator and a second end connected to the compressor;   wherein a first refrigerant circulation loop is constituted to provide a cold air function when the first solenoid valve and the second solenoid valve are in an open state and when the third solenoid valve and the fourth solenoid valve are in a closed state; and   wherein a second refrigerant circulation loop is constituted to provide a warm air function when the first solenoid valve and the second solenoid valve are in a closed state and when the third solenoid valve and the fourth solenoid valve are in an open state.   
     
     
         2 . The split type cold and warm air conditioner as claimed in  claim 1 , wherein a heat dissipation area of the second heat exchanger is 0.05 to 0.5 times that of the first heat exchanger, a heat dissipation area of the fourth heat exchanger is 0.05 to 0.5 times that of the third heat exchanger, a summation of the heat dissipation area of the first heat exchanger and the heat dissipation area of the second heat exchanger is greater than the heat dissipation area of the third heat exchanger, and a summation of the heat dissipation area of the third heat exchanger and the heat dissipation area of the fourth heat exchanger is greater than the heat dissipation area of the first heat exchanger. 
     
     
         3 . The split type cold and warm air conditioner as claimed in  claim 1  further comprising a control unit, the control unit being electrically connected to the air conditioning system, the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve.