Air conditioning system and air conditioner

Abstract

A novel air conditioning system includes a compressor; an outdoor heat exchanger; an indoor heat exchanger; and a four-way valve arranged among the compressor, the outdoor heat exchanger, and the indoor heat exchanger and configured to switch to a cooling mode and a heating mode; a first separator connected between the outdoor heat exchanger and the indoor heat exchanger; an auxiliary branch connected to the indoor heat exchanger in parallel and arranged between the gas-liquid separator and the four-way valve. With the first separator, the gaseous refrigerant and the liquid refrigerant is separated, and the gaseous refrigerant is directly bypassed to an outlet of the evaporator by means of the auxiliary branch between the first separator 108 and the four-way valve, thereby reducing the resistance to the refrigerant flowing in the evaporator and raising the energy efficiency of the system.

1 . An air conditioning system, comprising:
 a compressor ( 102 );   an outdoor heat exchanger ( 112 );   an indoor heat exchanger ( 120 );   a four-way valve ( 114 ) arranged among the compressor ( 102 ), the outdoor heat exchanger ( 112 ), and the indoor heat exchanger ( 120 ) and configured to switch to a cooling mode and a heating mode;   a first separator ( 108 ) connected between the outdoor heat exchanger ( 112 ) and the indoor heat exchanger ( 120 ) and having a first port connected to a line of the outdoor heat exchanger ( 112 ) and a second port ( 106 ) connected to a line of the indoor heat exchanger ( 120 ); and   an auxiliary branch connected to the indoor heat exchanger in parallel and arranged between a gas-liquid separator and the four-way valve ( 114 ) and having an end connected to a third port ( 122 ) of a gas-liquid separator, the third port ( 122 ) of the gas-liquid separator being configured as an outlet for a gaseous phase.   
     
     
         2 . The air conditioning system according to  claim 1 , wherein the auxiliary branch comprises a capillary ( 116 ) and a the one-way valve ( 118 ) connected to each other in series, when the refrigerant flows from the gas-liquid separator to the four-way valve ( 114 ), the one-way valve ( 118 ) is in communication. 
     
     
         3 . The air conditioning system according to  claim 2 , further comprises a second separator ( 104 ) arranged between the four-way valve ( 114 ) and the compressor ( 102 ), the second separator ( 104 ) implement gas-liquid separation to the refrigerant flowing into the compressor ( 102 ). 
     
     
         4 . The air conditioning system according to  claim 3 , wherein the four-way valve ( 114 ) comprises:
 a first valve port connected to a discharge port line of the compressor ( 102 );   a second valve port connected to the outdoor heat exchanger ( 112 );   a third valve port connected to an inlet of the second separator ( 104 ), wherein the refrigerant is discharged into a return port of the compressor ( 102 ) after passing through an outlet of the second separator ( 104 ) and a line; and   the fourth valve port connected to the indoor heat exchanger ( 120 ).   
     
     
         5 . The air conditioning system according to  claim 4 , further comprising a microcontroller electrically coupled with the four-way valve ( 114 ), wherein when the air conditioning system is in the cooling mode, the microcontroller controls the first valve port and the second valve port of the four-way valve ( 114 ) to be in communication with each other, and controls the third valve port and the fourth valve port of the four-way valve ( 114 ) to be in communication with each other; and when the air conditioning system is in the heating mode, the microcontroller controls the first valve port and the fourth valve port of the four-way valve ( 114 ) to be in communication with each other, and controls the second valve port and the third valve port of the four-way valve ( 114 ) to be in communication with each other, 
     
     
         6 . The air conditioning system according to  claim 1 , wherein the auxiliary branch comprises a one-way throttle valve arranged on the auxiliary branch, the one-way throttle valve makes the refrigerant flow in one direction from the first separator ( 108 ) to the four-way valve ( 114 ). 
     
     
         7 . The air conditioning system according to  claim 1 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member ( 110 ) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchange ( 112 ) to the first separator ( 108 ). 
     
     
         8 . An air conditioner, comprising the air conditioning system according to  claim 1 . 
     
     
         9 . The air conditioner according to  claim 8 , further comprising a signal receiver electrically coupled with a microcontroller in the air conditioning system, the signal receiver receives an external signal and sends a control signal to the microcontroller, and the microcontroller switches an operation mode of the air conditioner in response to the control signal. 
     
     
         10 . The air conditioner according to  claim 9 , wherein the signal receiver comprises an infrared sensor, a Bluetooth receiver, and a WIFI receiver. 
     
     
         11 . The air conditioning system according to  claim 2 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member ( 110 ) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchanger ( 112 ) to the first separator ( 108 ). 
     
     
         12 . An air conditioner, comprising the air conditioning system according to  claim 2 . 
     
     
         13 . The air conditioning system according to  claim 3 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member ( 110 ) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchanger ( 112 ) to the first separator ( 108 ). 
     
     
         14 . An air conditioner, comprising the air conditioning system according to  claim 3 . 
     
     
         15 . The air conditioning system according to  claim 4 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member ( 110 ) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchanger ( 112 ) to the first separator ( 108 ). 
     
     
         16 . An air conditioner, comprising the air conditioning system according to  claim 4 , 
     
     
         17 . The air conditioning system according to  claim 5 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member ( 110 ) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchanger ( 112 ) to the first separator ( 108 ). 
     
     
         18 . An air conditioner, comprising the air conditioning system according to  claim 5 . 
     
     
         19 . The air conditioning system according to  claim 7 , further comprises a throttle member ( 110 ) arranged on a line connecting the outdoor heat exchanger ( 112 ) to the first port of the first separator ( 108 ), the throttle member (lit)) cools and depressurizes the refrigerant flowing in the line connecting the outdoor heat exchanger ( 112 ) to the first separator ( 108 ). 
     
     
         20 . An air conditioner, comprising the air conditioning system according to  claim 7 .