Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Shinsuke Okumi

Arinobu Nakamura

Shungo Hiratani

Akira Haraguchi

Takehito Kobayashi

Manabu Hashikura

Toshiyuki Tsuchida

Takayuki Mishima

Kazuki Sogabe

Hiroyuki Kojima

Aiko Matsuda

Heng Cao

An object of the present disclosure is to be able to further reduce the size of a substrate structure including a plurality of elements. The substrate structure includes: a base substrate that includes a first conductive plate and a second conductive plate; a first element connected to the first conductive plate and the second conductive plate; and a second element connected to the first conductive plate and the second conductive plate. The first conductive plate and the second conductive plate are disposed on the same plane on the base substrate in a state of being electrically insulated from each other, the first element is mounted on a first main surface of the base substrate, and the second element is mounted on a second main surface that is on the opposite side to the first main surface relative to the base substrate.

Substrate structure

A power circuit includes bus bars that are connected to terminals of an FET and are provided flush with each other, and a first insulation region arranged between the bus bars. The power circuit includes a bus bar to which the FET is fixed, a conductive sheet that is connected to another bus bar via a first connection portion and electrically connects source terminals of the FET to the other bus bar, and a second connection portion that is provided in the conductive sheet and electrically connects the source terminals to the other bus bar.

Flexible circuit board on bus bars

Provided is a circuit board structure including a first circuit board having bus bars and a second circuit board arranged spaced apart from the first circuit board, multiple FET being arranged on the bus bars, and terminals of the multiple FETs being connected to the bus bars. The circuit board structure includes a conducting wire group sheet that covers a portion of the bus bar and is provided with multiple conducting wires that allow electricity to flow between gate terminals of the FETs and the second circuit board. The semiconductor element FETs, which are arranged side by side, are provided such that the gates terminals are arranged in the same direction with respect to the direction in which the semiconductor element FETs are arranged side by side.

Circuit board structure

An electrical junction box includes a casing configured to be mounted in a vehicle, a start relay (a start electrical component) A housed in the casing and to which a current is supplied at least at a start of the vehicle, an operational electrical component (an operational relay, a connector, and a fuse connector) housed in the casing and to which a current is supplied at least during an operation of the vehicle, and a surrounding heat shield wall (a heat shield wall) disposed between the start relay and at least one of the operational relay, the connector, and the fuse connector that are the operational electrical components. The start relay includes a relay case (an electrical component case) and a terminal portion. The terminal portion is housed in the relay case and has a fixed contact and a movable contact.

Electrical junction box

A circuit structure includes a circuit board having a conduction path and a through-hole continuing to the conduction path, a wire routing member that has a wire holding convex portion holding a wire configured to form a pre-determined conduction path and that is disposed to face the circuit board, a relaying wire whose one end is inserted into the through-hole in the circuit board to thereby connect the conductor path on the wire routing plate to that on the circuit board, and a positioning portion that is provided on the wire routing plate to thereby position a tip of the relaying wire.

Circuit structure and electric junction box

Plastic-clad optical fiber

Growing community of inventors

Yokkaichi, Japan

Shinsuke Okumi