Disclosed are a heat exchanger fin, a heat exchanger, an indoor unit and an air conditioner. The heat exchanger fin includes a fin body, and the fin body includes an air outlet contour line arranged on one side and an air inlet contour line arranged on the other side; refrigerant pipe mounting holes are provided in the fin body; and on a straight line where the curvature radius of the air outlet contour line of the fin body is located, or on a straight line where the curvature radius of the air inlet contour line of the fin body is located, the distance between the air inlet contour line and the air outlet contour line of the fin body is gradually reduced from the middle to two ends of the heat exchanger fin.

The present disclosure discloses an indoor unit of an air conditioner and an air conditioner. The indoor unit of the air conditioner includes an indoor unit housing, a heat exchanger, a conduit and one or more storage parts provided outside the indoor unit housing and/or inside the indoor unit housing, wherein one end of the conduit is connected to a liquid separator of the heat exchanger, the other end of the conduit is connected to a gas collecting pipe of the heat exchanger, and the conduit is used for heat exchange with the one or more storage parts.

The present disclosure discloses an indoor unit of an air conditioner and an air conditioner. The indoor unit of the air conditioner includes an indoor unit housing, a heat exchanger, a conduit and one or more storage parts provided outside the indoor unit housing and/or inside the indoor unit housing, wherein one end of the conduit is connected to a liquid separator of the heat exchanger, the other end of the conduit is connected to a gas collecting pipe of the heat exchanger, and the conduit is used for heat exchange with the one or more storage parts.

A packaged air turnover unit is described herein. The packaged air turnover comprises a compressor and condenser within a housing of the packaged air turnover unit. The packaged air turnover unit further includes one or more heat exchanges to cool air and one or more heaters to heat air, providing either cooling or heating to a space depending on the configuration of the unit.

A packaged air turnover unit is described herein. The packaged air turnover comprises a compressor and condenser within a housing of the packaged air turnover unit. The packaged air turnover unit further includes one or more heat exchanges to cool air and one or more heaters to heat air, providing either cooling or heating to a space depending on the configuration of the unit.

An air conditioner with an air purifying function includes a housing having an air inlet and an air outlet thereon. An air conditioning assembly and an air purifying assembly are disposed in the housing. The air conditioning assembly includes an air conditioning flue. A first fan and a heat exchanger are disposed in the air conditioning flue. The air conditioning flue connects with the air inlet and the air outlet respectively. The air purifying assembly includes an air purifying flue. A second fan and an air filter screen are disposed in the air purifying flue. The air purifying flue connects with the air inlet and the air outlet respectively.

An outdoor unit of an air-conditioner. The outdoor unit has a casing having a front air outlet and at least one air inlet. At least one fan is located in the casing. The outdoor unit is configured such that the at least one air inlet is provided in a top section and or in a bottom section of the outdoor unit when the outdoor unit is installed in an operational position. The outdoor unit is further configured such that the at least one fan is configured to move air from the at least one air-inlet to the front air outlet or move air from front air outlet to the at least one air-inlet.

An outdoor unit of an air-conditioner. The outdoor unit has a casing having a front air outlet and at least one air inlet. At least one fan is located in the casing. The outdoor unit is configured such that the at least one air inlet is provided in a top section and or in a bottom section of the outdoor unit when the outdoor unit is installed in an operational position. The outdoor unit is further configured such that the at least one fan is configured to move air from the at least one air-inlet to the front air outlet or move air from front air outlet to the at least one air-inlet.

An air conditioner switches between a normal refrigeration cycle and a defrosting refrigeration cycle, and includes: a refrigerant circuit that connects a first heat exchanger, a second heat exchanger, a radiation panel, and an expansion valve that regulates a flow rate of a refrigerant flowing through the radiation panel; and a controller that causes the air conditioner to switch between the normal refrigeration cycle and the defrosting cycle. During the normal refrigeration cycle, the radiation panel performs cooling or heating. During the defrosting cycle, the first heat exchanger serves as a radiator and the second heat exchanger serves as an evaporator. During the defrosting cycle, the controller causes the expansion valve to be in a fully closed state.

An air conditioner switches between a normal refrigeration cycle and a defrosting refrigeration cycle, and includes: a refrigerant circuit that connects a first heat exchanger, a second heat exchanger, a radiation panel, and an expansion valve that regulates a flow rate of a refrigerant flowing through the radiation panel; and a controller that causes the air conditioner to switch between the normal refrigeration cycle and the defrosting cycle. During the normal refrigeration cycle, the radiation panel performs cooling or heating. During the defrosting cycle, the first heat exchanger serves as a radiator and the second heat exchanger serves as an evaporator. During the defrosting cycle, the controller causes the expansion valve to be in a fully closed state.