Mitsubishi Electric Corporation

Mitsubishi Electric Cornoration

Takahisa Kawaguchi

Kentaro Urimoto

Takanori Ichikawa

Akira Kimishima

Junya Suzuki

Satoshi Iohara

Kazuhisa Takashima

Naohiro Motoishi

Kengo Fujimoto

The objective of the present disclosure is to realize downsizing of the bus-bar holder, and then to downsize an electric rotating machine apparatus and an electric power steering apparatus. In a first protruding portion of the bus-bar holder, there are provided a columnar portion, two or more first ribs that are provided on an outer circumferential surface of the columnar portion in such a way as to be parallel with a center axis of the columnar portion and in such a way as to be spaced apart from one another, and two or more second ribs; the first rib makes contact with an inner circumference surface of a first through hole of the control circuit board; the second rib makes contact with an inner circumference surface of a second through hole of the bus bar.

Electric rotating machine apparatus and electric power steering apparatus

An electric rotating machine apparatus includes

There is provided an electric power steering apparatus in which constituent elements of a control unit for controlling one of 2 winding groups of a motor and constituent elements of a control unit for controlling the other one thereof are arranged in point symmetry with respect to a center axis of an output shaft or in line symmetry with respect to a virtual straight line perpendicular to a direction in which the output shaft extends.

Electric power steering apparatus

Each of a power-source bus bar and a grounding bus bar provided in a driving apparatus has a terminal portion to be connected with output terminals of a power module and a bending portion bent in a direction perpendicular to a first surface of a bus bar holder; the bending portion is disposed between a smoothing capacitor and the power module; the power-source bus bar and the grounding bus bar are arranged in such a way as to face each other.

Driving apparatus and electric power steering apparatus

Provided is an electric driving device including a first protruding portion protruding from a holder surface. A plate-like portion has an opposed surface opposed to the holder surface. A first through hole in the plate-like portion is defined by a first through hole forming portion formed in a cylindrical shape so as to project from the plate-like portion to a side opposite to the opposed surface. The first through hole has an inner surface including a first hole inclined inner surface and a first hole cylindrical inner surface extending from the first hole inclined inner surface to the end portion of the first through hole forming portion. The first protruding portion is press-fitted into the first through hole under a state in which a plurality of first ribs are in contact with the first hole cylindrical inner surface.

Electric driving device and electric power steering device

In an electric power steering, a control unit includes a first power module configured to supply current to first motor windings, a first control board configured to output a control signal to the first power module, a second power module configured to supply current to second motor windings, a second control board configured to output a control signal to the second power module, and a heat sink. The heat sink includes a column portion having a plurality of mounting portions defined by flat surfaces parallel to the axial direction of the output shaft. The first control board and the second control board are each mounted along a corresponding one of one pair of opposing mounting portions, and the first power module and the second power module are each mounted along a corresponding one of another pair of opposing mounting portions.

Electric power steering device

An electronic control device includes first extended terminals extended from a multiple of terminals of opposing connectors respectively and second extended terminals extended from opposing control boards respectively. A hole is formed between the opposing connectors in a connector case, each of the first extended terminals and each of the second extended terminals oppose and approach each other toward the hole, in addition to which first extended terminals and second extended terminals are formed heading toward an exterior of the connector case from the hole, and the first extended terminal and the first extended terminal come into contact with differing side faces of the second extended terminal and the second extended terminal.

Electronic control device

An electric power steering device includes a motor and a control unit that are arranged coaxially with each other in an axial direction of an output shaft and integrated with each other. The control unit includes power modules configured to supply current to the motor, a heat sink, a control board configured to output a control signal to the power modules, and a rotation sensor. The power modules, a column portion of the heat sink, and the control board are arranged in parallel to the axial direction of the output shaft. The rotation sensor is provided in a recess formed in a base portion of the heat sink at an opposite position to a sensor rotor mounted to an end portion of the output shaft on the control unit side.

In a control unit having a press-fit structure, a substrate includes: a connected portion to which the press-fit terminal is connected; and a guide portion extending from the substrate around the connected portion. The press-fit terminal includes: a tip end portion; a contact portion adjacent to the tip end portion; and an enlarged portion. The guide portion includes: an opening portion; a guide hole extending from the opening portion to the substrate; a tapered surface formed on an inner side of the opening portion; and a reduced-hole portion formed continuous to the tapered surface. The tip end portion of the press-fit terminal is configured such that the contact portion is positioned with respect to the connected portion while the enlarged portion is guided by the tapered surface and an inner wall of the reduced-hole portion.

Control unit having press-fit structure

The present invention is concerning the control device equipped with a motorand a control unitwhich is coaxial to the motor. An upper frameis arranged at a boundary between the motorand the control unit. A semiconductor module, an intermediate member, and a control boardare provided in the control unit. For assembly of the semiconductor moduleand the intermediate member, a latch portionis provided on one of the semiconductor moduleand the intermediate member, and an engaged portion into which the latch portionlocks is provided on the other of the semiconductor moduleand the intermediate member, whereby positioning of the semiconductor moduleand the intermediate memberis achieved.

Control device with semiconductor module having bent latch, control, power supply and motor control terminals

In a control unit including a press-fit terminal, a substrate includes: a connected portion into which the press-fit terminal is connected; and a guide member, which surrounds a periphery of the connected portion and extends from the substrate. The press-fit terminal includes: a connecting portion formed on a tip end side of the press-fit terminal; and an enlarged portion formed adjacent to the connecting portion. The guide member includes: an opening portion, which opens in a direction in which the press-fit terminal is positioned; a guide hole extending from the opening portion to the substrate; and a reduced-hole portion formed adjacent to the opening portion. The guide hole is configured such that, when the connecting portion of the press-fit terminal is connected to the connected portion of the substrate, the enlarged portion of the press-fit terminal closes the reduced-hole portion of the guide hole.

Growing community of inventors

Tokyo, Japan

Takahisa Kawaguchi