Hitachi Automotive Systems, Ltd.

Kentaro Yamanaka

Yoshio Kawai

Yusaku Katsube

Hironori Ohhashi

Takayuki Fukuzawa

Hitoshi Furudate

Shoho Ishikawa

Yoshiyasu Negishi

Masayuki Kawabata

The electronic control unit ECU includes: a basethat has a bottom surface portionon which a printed circuit boardis mounted and an opening opposed to the bottom surface portion; and a coverthat covers at least a part of the bottom surface portionand is engaged with the base. Here, the coverincludes an overlap portionthat is spaced apart from and opposed to a side surfaceof the base, and the overlap portionincludes a slit

Electronic control unit

An electronic control device () includes a housing having a plurality of housing members () joined together, a housing vent hole () formed through the housing member () so as to extend in a thickness direction of the housing member, a protection wall () covering an outer opening () of the housing vent hole (), with a gap () left between the protection wall () and the outer opening (), a protection-wall vent hole () formed in the protection wall () at a position apart from the housing vent hole () so as to extend from the gap () in a radial direction of the housing vent hole (), and an air-permeable waterproof membrane () fixed to an inner opening () of the housing vent hole (). A vent passage () with a bent part () is formed between the air-permeable waterproof membrane () and the protection-wall vent hole ().

Electronic control device

An electronic control device including a circuit board, a connector with connector pins having a board connecting portion at which the connector pins are electrically connected with the circuit board, a pair of housing members accommodating the circuit board and the connector therebetween, a waterproof seal portion through which connection between the connector and the pair of housing members and connection between the pair of housing members are provided in a fluid-tight manner, the waterproof seal portion including a connector-side waterproof seal portion disposed between the connector and one of the pair of housing members which is opposed to the board connecting portion of the connector pins, and a barrier portion disposed between the board connecting portion of the connector pins and the connector-side waterproof seal portion.

Growing community of inventors

Ota, Japan

Kentaro Yamanaka