| 摘要 |
An air conditioner condensing (outdoor) unit 100 comprises a housing 110 to house an air movement means 114 comprising a propeller fan 116 and having a heat exchange area 112 to one side of the air movement means. The condensing unit also has a helical unit 300 mounted to one side of the air movement means and comprises a plurality of fins 312, each being inclined to an axial direction of the air movement means. The fins may be tapered in the radial and axial direction and may be formed from sound insulating foam material, and impart a spiral pattern on the air flow that improves the efficiency of the fan by lowering strain placed on the motor. A second helical unit may be mounted on the other side of the fan. The fan may be driven by a centrally located motor 118 to define a doughnut shaped active area through which the air passes (fig 3). An air movement guide 200 made from sound insulating material may mounted on the motor and may comprise of a tapered body that tapers to a point towards the heat exchange area. |
