Patent ID: 9285145
Filing Date: 2016-03-15
CPC Classification: F25B,F25D,F28D,F28F

Claim Text:
1. A refrigeration system comprising: a compressor; a four-way valve defining first to fourth valve ports, the first valve port and the third valve port being connected to the compressor; a condenser defining an inlet connected to the second valve port; a throttle mechanism defining an inlet connected to an outlet of the condenser; an evaporator connected between the fourth valve port and an outlet of the throttle mechanism, the evaporator including: a refrigerant switching unit connected to the evaporator, connected between the fourth valve port and the outlet of the throttle mechanism, allowing a refrigerant to enter into the first header from the four-way valve through the throttle mechanism and flow out of the second header to return to the four-way valve when the refrigeration system is in a “normal operation” mode, and allowing the refrigerant to enter into the one header from the four-way valve through the defrosting tube and flow out of the other of the first and second headers to return to the four-way valve through the throttle mechanism when the refrigeration system is in a “defrosting operation” mode.