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US 2006/0064998 A1Published application
Inverter-integrated motor for an automotive vehicle
AssigneeDenso Corporation
InventorsKenji Funahashi, Ken Hamada, Hiroyuki Kawata
Life of this patent
Estimating the term…
Abstract
A bus-bar integrated plate and outer frame section, arranged into a double-deck structure and having numerous bus bars molded with a resin molding plate portion, is provided as a wiring for connecting power switching elements and a smoothing capacitor, fixed on an outer surface of a cylindrical wall of a motor housing, to a printed circuit board serving as a control circuit.
Claims12
An inverter-integrated motor for an automotive vehicle, comprising:
- a housing;
- a cylindrical motor section accommodated in said housing;
- and
- an inverter circuit section fixed to said housing for converting direct-current power into three-phase alternating-current power and supplying the converted alternating-current power to said motor section;
- wherein said inverter circuit section comprises:
- power switching elements constituting respective arms of a three-phase inverter circuit;
- a smoothing capacitor connected between a pair of direct-current input terminals of said three-phase inverter circuit;
- a control circuit for controlling said power switching elements;
- and
- a wiring section for connecting said power switching elements, said smoothing capacitor, and said control circuit,
- wherein said wiring section comprises a bus-bar integrated plate including numerous bus bars integrally molded into a resin molding plate portion so as to assure mutual electrical insulation, and said bus-bar integrated plate being fixed to an outer surface of a cylindrical wall of said housing via said resin molding plate portion, and
- distal ends of said bus bars protruding from said resin molding plate portion are connected to respective electrode terminals of said power switching elements, terminals of said smoothing capacitor, and predetermined joint portions of said control circuit,
- wherein said bus-bar integrated plate is positioned at a radial outer side of said power switching elements fixed directly or via a radiator plate on the outer surface of said cylindrical wall of said housing, said bus-bar integrated plate extending in a tangential direction of said motor section with a predetermined radial gap kept therebetween.
10 more elements
An inverter-integrated motor for an automotive vehicle, comprising:
- a housing;
- a cylindrical motor section accommodated in said housing;
- and
- an inverter circuit section fixed to said housing for converting direct-current power into three-phase alternating-current power and supplying the converted alternating-current power to said motor section;
- wherein said inverter circuit section comprises:
- power switching elements constituting respective arms of a three-phase inverter circuit;
- a smoothing capacitor connected between a pair of direct-current input terminals of said three-phase inverter circuit;
- a control circuit for controlling said power switching elements;
- and
- a plurality of bus bars constituting a wiring for connecting said power switching elements, said smoothing capacitor, and said control circuit,
- wherein said power switching elements and said smoothing capacitor are fixed directly or via a radiator plate on an outer surface of a cylindrical wall of said housing,
- circuit components constituting said control circuit are mounted on a printed circuit board disposed at a radial outer side of said power switching elements, with said bus bars intervening between said printed circuit board and said power switching elements, and
- said power switching elements are connected to said printed circuit board via said bus bars.
10 more elements
An inverter-integrated motor for an automotive vehicle, comprising:
- a housing;
- a cylindrical motor section accommodated in said housing;
- and
- an inverter circuit section fixed to said housing for converting direct-current power into three-phase alternating-current power and supplying the converted alternating-current power to said motor section;
- wherein said inverter circuit section comprises:
- power switching elements constituting respective arms of a three-phase inverter circuit;
- a smoothing capacitor connected between a pair of direct-current input terminals of said three-phase inverter circuit;
- a control circuit for controlling said power switching elements;
- and
- a plurality of bus bars constituting a wiring for connecting said power switching elements, said smoothing capacitor, and said control circuit,
- wherein said inverter circuit section is accommodated in a closed space defined by an outer frame portion fixed on an outer surface of a cylindrical wall of said housing, a cover plate fixed on a top surface of said outer frame portion, and said outer surface of said cylindrical wall of said housing, and
- said outer frame portion surrounds terminals of said motor section extending out of said cylindrical wall of said housing.
9 more elements
An inverter-integrated motor for an automotive vehicle, comprising:
- a housing;
- a cylindrical motor section accommodated in said housing;
- and
- an inverter circuit section fixed to said housing for converting direct-current power into three-phase alternating-current power and supplying the converted alternating-current power to said motor section;
- wherein said inverter circuit section comprises:
- power switching elements constituting respective arms of a three-phase inverter circuit;
- a smoothing capacitor connected between a pair of direct-current input terminals of said three-phase inverter circuit;
- a control circuit for controlling said power switching elements;
- and
- a plurality of bus bars constituting a wiring for connecting said power switching elements, said smoothing capacitor, and said control circuit,
- wherein said inverter circuit section is accommodated in a closed space defined by an outer frame portion fixed on an outer surface of a cylindrical wall of said housing, a cover plate fixed on a top surface of said outer frame portion, and said outer surface of said cylindrical wall of said housing, and
- said closed space for accommodating said inverter circuit section is filled with a resin.
9 more elements
Dependencies are inferred from the claim text.