Hitachi Astemo Ltd.

Narutoshi Yamada

Takuro Kanazawa

Hideyuki Hara

Tomohiro Fukuda

Kazuhiko Nakano

Akira Ishii

An electronic control device comprises a circuit board on which electronic components are mounted, a connector block integrated with a connector that is electrically connected to the circuit board, a base to which the circuit board is fixed, and a cover that can be fitted to circumferential grooves that are formed in the base and the connector block respectively so that a connecting portion of the connector protrudes to the outside while accommodating the circuit board that is fixed to the base. Furthermore, a ventilation hole is formed in a section of the connector block excluding a formation position of the connector so as to communicate an inner space with an outer space of the cover, and a sealing material that seals the ventilation hole is further provided.

Electronic control device and method for manufacturing the same

An electric drive device includes: an electronic control section including a first electronic control section and a second electronic control section which constitute a redundant system, the first electronic control section and the second electronic control section being provided with a first control section side connecter and a second control section side connecter which have an identical configuration, and the first non-control section side connecter being engaged with the first control section side connecter, and the second non-control section side connecter being engaged with the second control section side connecter to correspond to the lengths of the first harness and the second harness.

Electrical drive device and electrical power steering device

A first circuit boardand a second circuit board, each of which have mounted thereon circuit components for controlling and driving an electric motor, are stacked with a space left therebetween such that one board surface of the first circuit board and one board surface of the second circuit board are opposed to and face each other in the direction of a rotation shaftof the electric motor. In a state that the first circuit boardand the second circuit boardare attached to the motor housing, a receptacle connectormounted on the first circuit board and a plug connectormounted on the second circuit board form a 'board-to-board connector' by which the circuit components of the first and second circuit boards are electrically connected.

Electric powered drive device, and method for assembling electric powered drive device

A circuit substrate () is provided with first and second rigid parts () having six metal foil layers, and a thin flexible part () having two metal foil layers connecting the two rigid parts. A ground wiring () which is shaped like a wide strip is formed on the surface metal foil layer, and a plurality of inter-rigid-part wirings () are formed on the inner metal foil layer in parallel lines. Outer edges () of the ground wiring () are positioned closer to side edges () of the flexible part () than to the inter-rigid-part wirings (). The ground wiring () protects the inter-rigid-part wirings () from cracks.

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Hitachinaka, Japan

Narutoshi Yamada