| 摘要 |
PURPOSE:To realize a small and high-output brushless-motor fan by a method wherein heat generated from a stator and a power element is diffused effectively, a decrease in a motor torque is suppressed and the damage to the power element is suppressed in the small brushless-motor fan which is used for a hot-water supply appliance for household use. CONSTITUTION:This fan is constituted in such a way that it is provided with a housing cover 13 which is used also at least as a part of a main plate 12 on the side opposite to the intake of a fan casing 7 and which supports a housing 9 mounted on, and attached to, a stator and that the housing mounted on, attached to, the stator 4 provided with a winding 3 and the surface of a power element part 10 which is mounted on, and attached to, a printed-wiring board 11 are arranged and fixed so as to come into contact with the housing cover 13. Thereby, heat generated from the stator and the power element can be diffused effectively to the housing cover 13. |
