Semiconductor module and driver device
AssigneeDenso Corporation
InventorsMikihiro Hiramine, Toshihiro Fujita
Life of this patent
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Abstract
A semiconductor module includes a switching element, a molded body, and a motor terminal. The molded body having the switching element disposed therein. The motor terminal has a base portion and a connection portion having an insertion hole into which a motor wire is inserted and connected with the winding wire. The connection portion has a cutaway region that defines a slot. The winding wire of the motor and the semiconductor module are connected via the motor wire and the motor terminal, thereby reducing the number of components used for such connection compared with a connection that uses a connector, and achieving a volume reduction of the semiconductor module and a driver device using the same.
Claims7
A semiconductor module comprising:
- a switching element switching an electric current supplied to a winding wire of a motor;
- a molded body having the switching element disposed therein;
- and
- a motor terminal having a base portion and a connection portion, the base portion protruding from the molded body, and the connection portion disposed on a tip side of the base portion and having an insertion hole into which a motor wire is inserted to be connected with the winding wire, wherein
- the connection portion has a cutaway region that defines a slot, and the slot is connected to the insertion hole and expands outwardly from the insertion hole, wherein
- the slot has a first sidewall and a second sidewall, the first sidewall is formed on a base portion side of the slot and the second sidewall is formed on a side of the slot that is opposite to the base portion side, and
- a tip on the second sidewall points toward the base portion side of the slot relative to a center of the insertion hole.
A driver device comprising:
- a motor unit;
- and
- a control unit disposed on one axial side of the motor and having a heat sink on which a semiconductor module is fastened, the semiconductor module including
- a switching element switching an electric current supplied to a winding wire of a motor,
- a molded body having the switching element disposed therein, and
- a motor terminal having a base portion and a connection portion, the base portion protruding from the molded body, and the connection portion disposed on a tip side of the base portion and having an insertion hole into which a motor wire is inserted to be connected with the winding wire, wherein
- the connection portion has a cutaway region that defines a slot, the slot is connected to the insertion hole and expands outwardly from the insertion hole,
- the slot has a first sidewall and a second sidewall, the first sidewall is formed on a base portion side of the slot and the second sidewall is formed on a side of the slot that is opposite to the base portion side, and
- a tip on the second sidewall points toward the base portion side of the slot relative to a center of the insertion hole.
Dependencies are inferred from the claim text.