Abstract: An air discharge structure for a packaged air conditioner includes a front air outlet (7) disposed on the mid-upper part of a body (1), and an upper panel (9) mounted on the front air outlet (7) and slidable up and down along the body (1). An upper decorative panel (10), height of which is matched with the stroke of the upper panel (9), is mounted above the front air outlet (7) and slidable back and forth along the body (1). An upper and lower limit mechanism for the upper decorative panel is disposed between the upper decorative panel (10) and the body (1). The application can facilitate increasing the range of air supply in the air conditioner and maintain stable air supply.

Abstract: Disclosed is an automatic dust-removing and cleaning device for a filter net of an air-conditioner which has a filter net (2) with an end to end sealing ring structure. The filter net (2) comprises a net frame (21) provided with gear sockets (211), and a mesh (22). A driving gear (5) is installed at one corner of an air inlet frame (1) of the air conditioner and meshed with the gear sockets (211) of the net frame (21). Driven gears (6) are installed at the other three corners of the air inlet frame (1) of the air conditioner and meshed with the gear sockets (211) of the net frame (21). A drive mechanism (12) drives the driving gear (5) to rotate. A dust-collecting box (3) is installed at the bottom of the air inlet frame (1) of the air conditioner and provided with a water inlet and a water outlet. The water inlet is connected to a water inlet pipe (8) and the water outlet is connected to a water outlet pipe (9).

Abstract: Disclosed is a multi-split air conditioner capable of refrigerating and heating simultaneously. A heating circuit consists of a compressor (1), an oil-gas separator (2), a four-way valve (3), indoor heat exchanging systems (12,16,21,22), an outdoor heat exchanger (7), a four-way valve (3), and a gas-liquid separator (26) connected in series along the refrigerant flow direction. A refrigerating circuit consist of a compressor (1), an oil-gas separator (2), a four-way valve (3), an outdoor heat exchanger (7), indoor heat exchanging systems (12,16,21,22), and a gas-liquid separator (26) connected in series along the refrigerant flow direction. A parallel pipeline is arranged at a pipeline between the outdoor heat exchanger (7) and the indoor heat exchanging systems (12,16,21,22), and is utilized for connecting an second electronic expansion valve (8) with a second one-way valve (9) in parallel. A series pipeline is arranged with a third control valve (5) and a third one-way valve (6).

Abstract: An air discharge structure for a packaged air conditioner includes a front air outlet (7) disposed on the mid-upper part of a body (1), and an upper panel (9) mounted on the front air outlet (7) and slidable up and down along the body (1). An upper decorative panel (10), height of which is matched with the stroke of the upper panel (9), is mounted above the front air outlet (7) and slidable back and forth along the body (1). An upper and lower limit mechanism for the upper decorative panel is disposed between the upper decorative panel (10) and the body (1). The application can facilitate increasing the range of air supply in the air conditioner and maintain stable air supply.