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Mounting structure for mounting power elements to heat dissipation member
| Details |
Inventors: Sunaga, Hideki; Ohira, Shigenori; Sano, Narihito; Yamada, Kazunori; Oba, Takeshi;
Assignee: Calsonic Kansei Corporation (Tokyo, JP)
Primary Examiner: Tolin; Gerald
Assistant Examiner:
Attorney, Agent or Firm: Foley & Lardner
A power element mounting structure for use in a brushless motor comprises a circuit board; a spring plate of metal, the spring plate being resiliently mounted, through a first mounting structure, on the circuit board keeping a given space therebetween; a plurality of power elements disposed on the spring plate to form a semi-assembled unit; a heat dissipation member of metal having a plurality of heat dissipation fins on an outer surface thereof, the heat dissipation member being mounted, through a second mounting structure, on the semi-assembled unit in such a manner that an inner surface thereof faces toward the power elements; and a plurality of spring pieces defined by the spring plate, the spring pieces being arranged to press the power elements against the inner surface of the heat dissipation member. |
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DETAILED DESCRIPTION It is therefore an object of the present invention to provide a structure for mounting power elements to a heat dissipation member, which is free of the above-mentioned drawbacks.
According to the present invention, there is provided a structure which comprises a circuit board; a spring plate of metal, the spring plate being resiliently mounted, through a first mounting structure, on the circuit board keeping a given space therebetween; a plurality of power elements disposed on the spring plate to form a semi-assembled unit; a heat dissipation member of metal having a plurality of heat dissipation fins on an outer surface thereof, the heat dissipation member being mounted, through a second mounting structure, on the semi-assembled unit in such a manner that an inner surface thereof faces toward the power elements; and a plurality of spring pieces defined by the spring plate, the spring pieces being arranged to press the power elements against the inner surface of the heat dissipation member.
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