Power module and method for producing the same
First Claim
1. A power module wherein a power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member, comprising:
- an external connection terminal formed by folding up an end of each of said bus bars from said circuit arrangement surface;
an enclosure wall member disposed on said heat radiation member to surround said power circuit section including said external connection terminal;
a connector housing constituting an external connection connector that includes a bottom portion and a hood, said bottom portion being provided with a terminal through-hole into which said external connection terminal is inserted, said hood surrounding said external connection terminal that projects through said terminal through-hole toward the opposite side from said circuit arrangement surface, said external connection connector being adapted to be coupled to another connector together with said external connection terminal; and
a waterproof layer formed within said enclosure wall member so that at least a part of said power circuit section is sealed and said terminal through-hole is sealed.
1 Assignment
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Accused Products
Abstract
A power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member. An end of each of the bus bars is folded up from the circuit arrangement surface to form an external connection terminal. An enclosure wall member that surrounds the power circuit section including the external connection terminal is disposed on the heat radiation member. A connector housing contains an external connection connector that comprises a bottom portion provided with terminal, a through-hole into which the external connection terminal is inserted, and a hood that surrounds the external connection terminal. The external connection connector can be coupled to another connector together with the external connection terminal. A waterproof layer is formed within the enclosure wall member so that at least a part of the power circuit section is sealed and the terminal through-hole is sealed.
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Citations
18 Claims
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1. A power module wherein a power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member, comprising:
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an external connection terminal formed by folding up an end of each of said bus bars from said circuit arrangement surface; an enclosure wall member disposed on said heat radiation member to surround said power circuit section including said external connection terminal; a connector housing constituting an external connection connector that includes a bottom portion and a hood, said bottom portion being provided with a terminal through-hole into which said external connection terminal is inserted, said hood surrounding said external connection terminal that projects through said terminal through-hole toward the opposite side from said circuit arrangement surface, said external connection connector being adapted to be coupled to another connector together with said external connection terminal; and a waterproof layer formed within said enclosure wall member so that at least a part of said power circuit section is sealed and said terminal through-hole is sealed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for producing a power module, comprising:
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arranging on a circuit arrangement surface of a heat radiation member a power circuit section including a plurality of bus bars and an external connection terminal formed by folding up an end of at least one of said bus bars; attaching closely to said circuit arrangement surface an enclosure wall member that surrounds said power circuit section including said external connection terminal; forming an external connection connector adapted to be coupled to another connector through said external connection terminal that is inserted into said terminal through-hole in a connector housing, said connector housing including a bottom portion and a hood, said bottom portion being provided with said terminal through-hole into which said external connection terminal is inserted, and said hood surrounding said external connection terminal that projects through said terminal through-hole toward the opposite side from said circuit arrangement surface; and forming a waterproof layer for sealing at least a part of said power circuit section and for sealing said terminal through-hole by filling a space enclosed by said enclosure wall member with a liquid waterproof resin, flowing said waterproof resin into said connector housing to a given level, and solidifying said waterproof resin. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification