Yazaki Corporation

Takafumi Toda

Takeyuki Hamaguchi

Takahiro Iwaki

Hiroki Tashiro

Nobutaka Kaneko

Koji Ikegaya

Tetsuro Saimoto

Hideo Takahashi

Noriaki Akamine

Tetsurou Saimoto

Toshihiro Teranishi

A vehicular power supply system includes a first power supply mounted on a vehicle, a first power supply line connected to the first power supply and disposed on one side in a width direction or a front-rear direction of the vehicle, a second power supply mounted on the vehicle, that is different from the first power supply, a second power supply line connected to the second power supply and disposed on another side in the width direction or the front-rear direction of the vehicle, a third power supply line in which one end is connected to the first power supply line and another end is connected to the second power supply line, and a power semiconductor that switches between short-circuiting and opening of the third power supply line.

Vehicular power supply system

In a vehicular power supply system according to an embodiment, passage current of a power MOSFET of an IPD of a sub power distribution box monitored by a sub controller of the sub power distribution box is transmitted from the sub controller to a main controller of a main power distribution box. When energy storage amount of a load-based path calculated by integrating the passage current received by the main controller exceeds a predetermined value which is a overcurrent state, the main controller determines that the load-based path is in the overcurrent, and notifies the fact from the main controller to the sub controller. The sub controller switches the power MOSFET of the IPD of the load-based path set to the overcurrent by the notification to a non-conduction state to interrupt the energization of the load-based path.

Vehicular power supply system with semiconductor switching device

An electronic component board is produced by die-cutting a metal plate in a lump into the bus bars and a band-shaped connecting portion connected to the bus bars, having a constant width, and positioned at an outer edge of the metal plate, by attaching the bus bars to the insulating plate, and by cutting and removing the connecting portion while leaving a part of the connecting portion uncut which is used as the heat radiating portion. Additional steps of the method include providing the metal plate, the insulation plate, and an electrical component, and electrically connecting the electrical component to the plurality of bus bars.

Production method of electronic component board with uncut portions for heat radiating portions

An electronic part module, comprising: an electronic part substrate having an insulating panel to which a plurality of bus bars is attached, each of the bus bars having an external terminal-connecting portion and being electrically connected to an electronic part, a case for receiving the electronic part substrate therein, and a connector-connecting portion in which a plurality of the external terminal-connecting portions of the plurality of bus bars is collected, and which is disposed between a plurality of the electronic parts.

Electronic part module

A fusible link mounting structure, comprising a three-series fusible link formed by providing three pieces of fuse elements in series within a single common housing, a cavity having a mounting space formed according to a size of the common housing for the three-series fusible link, a plurality of tabs projected from a bottom of the cavity into the mounting space, and a monopole fusible link formed by providing a piece of fuse element in a single monopole housing, wherein a total length of the mounting space is set to be shorter than a sum of lengths of three-pieces of the monopole housings, and the tabs are arranged corresponding to positions of fuse terminals provided in the three-series fusible link, and also arranged at such positions that a plurality of the terminals do not interfere with the monopole housing, when the monopole fusible link is mounted in the cavity.

Fusible link mounting structure and electrical junction box

A connection structure for a screw block, wherein a screw member and a bus bar are disposed in one side of an insulative screw block body, a power supply circuit is screw-connected to the bus bar by the screw member, a terminal portion of the bus bar is housed in an internal space of the screw block body, a wire-equipped terminal for power supply distribution is housed in the internal space from another side of the screw block body, and the wire-equipped terminal and the terminal portion of the bus bar are connected to each other, is provided.

Connection structure for a screw block for fitment with a component attachment block

Disclosed is an electric junction box in which a pair of cassette blocks is arranged at intervals to each other in a component-attaching direction, capable of downsizing without increase of the number of component. The electric junction box comprises a pair of cassette blocks, configured to attach electric components thereto, arranged at intervals mutually in a component-attaching direction; and a cross-sectionally U-shaped bus bar attached to one cassette block, electrically connected to the electric components, a middle of the bus bar being arranged in a direction perpendicular to the component-attaching direction, both ends of the U-shaped bus bar being arranged in the component-attaching direction, wherein the electric components attached to the other cassette block are opposed to the middle of the bus bar.

Growing community of inventors

Kosai, Japan

Takafumi Toda