Portable engine generator having a fan cover with a control unit mounting portion
First Claim
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1. An engine-driven generator unit having an engine and an electric power generator driven by said engine, said engine-driven generator unit comprising:
- a cooling fan mounted on a rotational shaft of said electric power generator;
a fan cover for covering said cooling fan, the fan cover being made of die-cast aluminum alloy; and
a power control unit comprising an aluminum base sheet and a power control circuit provided thereon for controlling an output from said electric power generator, the power control unit being attached to said fan cover with a surface of said aluminum base sheet intimately contacting an outer surface of said fan cover.
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Abstract
An engine generator comprises a fan cover made of die-cast aluminum alloy, and a power control unit including an aluminum base sheet. The base sheet has a power control circuit formed thereon. The fan cover includes a mounting portion to be attached to the power control unit. When the power control unit is attached to the fan cover, a surface of the aluminum base sheet comes into intimate contact with an outer surface of the mounting portion. Heat generated at the unit is transmitted to the fan cover, and then released from the fan cover serving as a heat releasing member.
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Citations
18 Claims
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1. An engine-driven generator unit having an engine and an electric power generator driven by said engine, said engine-driven generator unit comprising:
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a cooling fan mounted on a rotational shaft of said electric power generator;
a fan cover for covering said cooling fan, the fan cover being made of die-cast aluminum alloy; and
a power control unit comprising an aluminum base sheet and a power control circuit provided thereon for controlling an output from said electric power generator, the power control unit being attached to said fan cover with a surface of said aluminum base sheet intimately contacting an outer surface of said fan cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An engine-driven generator unit comprising:
- an engine;
an electric power generator driven by the engine;
a cooling fan mounted to a rotary output shaft of the engine;
a thermally conductive fan cover covering the cooling fan and the electric power generator; and
a power control unit comprising a thermally conductive metallic base sheet and a power control circuit provided on the base sheet for controlling an output of the electric power generator, the power control unit being attached to the fan cover so that a surface of the base sheet is in direct contact with an outer surface of the fan cover. - View Dependent Claims (14, 15, 16, 17, 18)
- an engine;
Specification