Yazaki Corporation

Hiroki Shiraiwa

Kazuomi Kiyosue

Tomohiro Sugiura

Akinori Nakashima

Minoru Umezaki

Noriyoshi Yamazaki

Pharima Akanitsuk

Yasuhiro Tokumasu

Masanobu Suzuki

Shigeharu Tsukui

Masaki Yamamoto

Hiroaki Yamada

Akemi Maebashi

Hirotaka Kurita

Yasuhiro Hara

Katsuyoshi Kobayashi

An insert bus bar plate includes a plate-shaped resin material and a plurality of metal bus bars that are embedded within the resin material by insert molding and have a terminal part exposed to a mounting surface that is one of principal faces of the resin material. The bus bars are formed, before the insert molding, as a bus bar assembly before molding the one ends different from the terminal part of which are coupled to each other by a carrier to be cut after the insert molding. The insert bus bar plate (a substrate main body) is formed by the insert molding performed by oppositely arranging two bus bar assemblies before molding of the same shape so that two terminal parts are positioned in between two carriers.

Insert bus bar plate and method for manufacturing the same

An electronic component unit includes a housing. The housing includes a housing space that houses an electronic component. The housing space is divided into a plurality of divided spaces by a central wall-shaped part protruding from a bottom of the housing space. The bottom defines a lower side of the housing space in the vertical direction. The central wall-shaped part has a connecting portion-fitting part to which a connecting part of an electric wire is fitted. For each of the divided spaces, the bottom has a short side direction tilted surface that is tilted from the central wall-shaped part toward the lower side in the vertical direction in a state where the housing is installed at an installation position, and a drain hole formed at a lower end of the short side direction tilted surface in the vertical direction.

Electronic component unit

A locking structure between a member to be supported and a supporting body includes an electronic component unit as a member to be supported, an electronic component unit housing part of an electrical connection box as a supporting body, a lock mechanism for upper insertion fitting (an engagement claw and a lock arm) that, when the electronic component unit is fitted to the electronic component unit housing part from an upper-side opening, locks the electronic component unit to the electronic component unit housing part to prevent the electronic component unit from escaping toward the upper-side opening, and a lock mechanism for lower insertion fitting (an engagement claw and a lock arm) that, when the electronic component unit is fitted to the electronic component unit housing part from a lower-side opening, locks the electronic component unit to the electronic component unit housing part to prevent from escaping toward the lower-side opening.

Locking structure between member to be supported and supporting body

An electronic component unit includes a plate made of a resin material configured to embed metallic bus bars in the resin material and mount electronic components thereon, and a supporting member to which the plate is assembled. The plate has a plurality of exposed ends at which the bus bars are partially exposed on edge surfaces of the plate. The supporting member includes protrusions that are formed on opposed surfaces facing the edge surfaces of the plate such that the protrusions face the edge surfaces of the plate, protrude from the opposed surfaces toward the edge surface sides of the plate, and are each located between the adjacent exposed ends in an arrangement direction of the multiple exposed ends.

Electronic component unit and wire harness

A temporary fixation boss includes: a shaft portion; a flared portion; and claw portions. The shaft portion has a diameter smaller than a diameter of an insertion hole. The flared portion is provided at one end of the shaft portion in a manner to be flared in multi steps from an outer periphery of the shaft portion throughout the whole circumference of the shaft portion. The claw portions are so formed that a distance from the shaft center of the shaft portion to a tip end of the claw portions in a radial direction of the shaft portion is larger than a distance from the shaft center to a tip end of the flared portion, and smaller than a distance from the shaft center to the inner edges of the insertion hole when the shaft center is aligned with the center axis of the insertion hole.

Temporary fixation boss and electrical junction box

To achieve efficient heat spreading and heat releasing by using a metal core of a circuit board, a terminal block includes an insulating block body and terminals. At least one of the terminals is provided with terminal portions for a connection with a circuit board. The terminal portions are inserted into respective through holes of the circuit board, the circuit board having a pattern circuit at a surface layer thereof and a conductive metal core at an intermediate portion in a thickness direction, so that heat of the metal core or of both the metal core and the pattern circuit is absorbed and transferred to the terminals. A bus-bar block includes an insulating block body and several parallel bus-bars with different lengths. Terminal portions at a tip end of the bus-bars are inserted, near heat-generating component on the circuit board, into the through holes of the circuit board.

Circuit board structure having measures against heat

There is provided an electric junction box () which can reduce the usage of the heat-resistant resin for a connector fitting portion. The electrical junction box () includes a case () including a box-like body () and a box-like body () to be assembled together, a substrate () received in the case (), a connector fitting portion () arranged to engage with a connector and having a terminal () soldered to the substrate () with lead-free solder, a holding portion () holding the terminal (), and a tubular outer wall () surrounding the terminal (). The holding portion () and the outer wall () are formed as separate parts. The outer wall () is divided into two segments formed integrally with the box-like bodies (), respectively. The holding portion () is made of heat-resistant resin while the outer wall () is made of non-heat-resistant resin.

Electric junction box

The present invention provides a junction block adapted adaptable for a variety of vehicles without increase of cost. The junction block includes a circuit board, a terminal blockfor low-grade use to be connected to the circuit board, a bus bar blocksuperimposed on the terminal block and connected to the circuit board, a coverfor covering the circuit board from side of the bus bar block, and a plurality of fuses' to be connected to terminalsof the terminal block and the bus bar block, wherein the junction block is adaptable for a variety of vehicles with or without use of the bus bar block.

Junction block

Bus bars each having on one side a terminal portion for connection of an electrical component and on the other side a terminal portion for connection of circuit board are provided in an insulating block body parallel to each other to constitute a busbar block. The bus bars are prevented from uplifting by virtue of a rib integral with the block body. Recessed portions for positioning are provided in an insulating cover corresponding to the ribs, and at the same time as the busbar block is attached to the cover, the ribs are brought into engagement with the recessed portions to provide positioning of the busbar block. Terminal block constructed by terminals each having on one end thereof a terminal portion for connection of an electrical component and on the other side thereof a terminal portion for connection of circuit board, and an insulating block body holding the terminals.

Busbar-block mounting structure

A plate-like terminal mounting structure is configured to attach a plurality of plate-like terminals in multiple tiers to a terminal holder for facilitated and effective positioning of the terminals in the terminal holder and prevention of undesirable impacts of the terminals upon a connection between the terminals and a circuit board. The terminal holder includes a plurality of ribs tapering toward their tips and parallel to each other. The terminal includes a recessed portions or holes for engaging the plate-like terminals with the ribs in a regular mounting position without gap left therebetween. The rib includes sloping surfaces on its four sides (front, rear, right, and left sides). The terminal holder includes a partition wall separating the terminals from each other, the partition wall being in one piece with the ribs. The plate-like terminals are arranged in multiple tiers in a height direction of the ribs. The recessed portion or the hole of the terminal in a lower tier is large, and the recessed portion or the hole of the terminal in the upper tier is small depending on tapering of the ribs.

Plate-like terminals mounting structure

A structure for fixing an electrical junction assembly on a corner portion defined by a first attaching surface and a second attaching surface perpendicular to the first attaching surface, the fixing structure comprises an electrical junction assembly body including a wire harness drawn out from a first side face thereof, the first side face opposing to the first attaching surface, a first bracket including a first fastening portion parallel to the first side face and a through hole formed in the first fastening portion, into which a first bolt vertically provided on the first attaching surface is inserted, a second bracket including a second fastening portion parallel to a second side face opposing to the second attaching surface, and an elongated through hole formed in the second fastening portion and extending toward the first side wall, into which a second bolt vertically provided on the second attaching surface is inserted, and a thin breakable member provided on a face of the second fastening portion which is the other side of a face to be abutted against the second attaching surface for closing a part of the elongated through hole near the first side face.

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Shizuoka, Japan

Hiroki Shiraiwa