Receiver dryer, method of manufacturing receiver dryer and air-conditioning system

A receiver dryer, comprising a first body and a second body, one end of the second body facing the first body forming an open structure, and another end of the second body away from the first body defining a first connecting port and a second connecting port, wherein, the receiver dryer further comprises a filter cartridge, the filter cartridge comprises a first mating portion, a second mating portion, and a filter part at a middle portion thereof;

• the first mating portion fits with an inner wall of the second body, one space allowing refrigerant to flow is formed between the filter part and the inner wall of the second body, another space allowing refrigerant to flow is formed between the second mating portion and a portion of the second body where the first connecting port is arranged, the second mating portion fits with an inner wall of the second connecting port, the space between the filter part and the inner wall of the second body is in communication with the first connecting port, an inside of the filter part is in communication with the second connecting port via the second mating portion, and the refrigerant is filtered at least once during a process of flowing between the first connecting port and the second connecting port.

An air-conditioning system, comprising a compressor, a heat exchanger and a receiver dryer connected to the compressor or the heat exchanger, the receiver dryer comprising a first body and a second body, one end of the second body facing the first body having an open structure, and another end of the second body away from the first body having a first connecting port and a second connecting port, wherein, the receiver dryer comprises a filter cartridge, the filter cartridge comprises a first mating portion, a second mating portion, and a filter part at a middle portion thereof;

• the first mating portion fits with an inner wall of the second body, a space allowing refrigerant to flow is provided between the filter part and the inner wall of the second body, the second mating portion fits with an inner wall of the second connecting port, the space between the filter part and the inner wall of the second body is in communication with the first connecting port, an inside of the filter part is in communication with the second connecting port via the second mating portion, and the refrigerant is filtered at least once during a process of flowing between the first connecting port and the second connecting port.