Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Akira Haraguchi

Hideaki Tahara

Arinobu Nakamura

Manabu Hashikura

Shungo Hiratani

Shinsuke Okumi

Hideo Morikoka

Atsushi Inoue

Yasushi Fujimura

Jun Ikeda

Takeo Komiya

Yuuichi Hattori

Hideo Morioka

Maki Ikeji

Heng Cao

A circuit structure includes a first busbar, a wiring board located on the first busbar and having an open hole, a conductive raised part protruding into the open hole from the first busbar, and a first electronic component having a first connection terminal located on the wiring board. The first connection terminal is electrically connected to the raised part in the open hole.

Circuit structure

A first heat dissipation member is thermally connected to a first busbar. A second heat dissipation member is thermally connected to a second busbar. The first busbar and the second busbar respectively have a first facing part and a second facing part that face each other. The first facing part has a first surface on which a first electronic component is mounted and a second surface opposite to the first surface. The second facing part has a third surface that faces the second surface and a fourth surface that is positioned opposite to the third surface and on which a second electronic component is mounted. A circuit board has a wiring board that is positioned behind the first facing part and is positioned in front of the second facing part when the second facing part side is seen from the first facing part side.

Circuit device

A circuit structure includes a first busbar, a second busbar, an insulating member including an insulating portion located between the first busbar and the second busbar, a first wiring board provided on one main surface of the first busbar, one main surface of the second busbar and the insulating portion, and a first electronic component provided on the first wiring board. The first electronic component has a first connection terminal electrically connected to the first busbar and bonded to the first wiring board, and a second connection terminal electrically connected to the second busbar and bonded to the first wiring board.

A circuit structure includes a first busbar constituted by a cladding material, a second busbar, an insulating member including an insulating portion located between the first busbar and the second busbar, and an electronic component provided on the first busbar and the second busbar so as to straddle the insulating portion. The electronic component has a connection terminal bonded to the first busbar.

Provided is a circuit board on which an electronic component including a first terminal and a second terminal that are arranged side by side is to be mounted, the circuit board including: an insulating holding member, a conductive plate, and a signal circuit, in which the conductive plate is held by the holding member, the first terminal is joined to the conductive plate, the signal circuit is formed on a surface of the holding member using conductive nanoink containing a flux, and an end portion of the signal circuit and the second terminal are joined to each other using solder.

Circuit board and method for manufacturing electrical connection box including circuit board

A circuit structure includes a plurality of semiconductor elements arranged side by side, and each semiconductor element includes source terminals and at least one gate terminal arranged side by side with the source terminals. The circuit structure includes: a first bus bar connected to the source terminals of the semiconductor elements; connection portions that connect the source terminals and the first bus bar and are arranged side by side along the arrangement direction of the semiconductor elements and whose one ends are connected to the source terminals of the respective semiconductor elements; an insulating portion provided so as to be present between each adjacent pairs of the connection portions; and conductive portions provided in the insulating portion and connected to the gate terminals.

Circuit structure and electrical junction box

Provided is a circuit board on which a circuit component is mounted on one side, and a recess is formed at a position corresponding to the circuit component on the other side, and the circuit board includes a first heat conductive member that is provided inside the recess and conducts heat generated by the circuit component.

Circuit board and method for manufacturing circuit board

A circuit assembly that includes a circuit board, a switching element that is mounted on one side of the circuit board, a folded portion that extends from a peripheral edge portion of the circuit board and is folded towards the one side, and a temperature measuring device that is mounted on the folded portion and is in contact with the switching element.

Circuit assembly

An electrical junction box including: bus bars; a circuit board of which one side opposes the bus bars; a conductive portion that is provided on the one side of the circuit board, and is exposed from the other side of the circuit board; an opening that is provided in parallel with the conductive portion in the circuit board, and from which a portion of the bus bars is exposed; a switching element that is arranged on the other side of the circuit board, and of which an input terminal or an output terminal is connected to the conductive portion; and a conductive piece that is arranged straddling a portion of the bus bars and the conductive portion.

Electrical junction box

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

A temperature fuse is ring-shaped and includes an insulation portion and a conductive portion arranged on an inner side and an outer side in a radial direction, and the conductive portion is formed of a thermal fuse element. An electrical junction box includes: a circuit board on which a switching element is mounted; a housing body for housing the circuit board; a conductive plate connected to the switching element, a first hole passing through the conductive plate; a terminal that is shaped as a plate and faces the conductive plate, a second hole passing through the terminal; the temperature fuse interposed between the conductive plate and the terminal in an axial direction, and a shaft-like insertion body for being inserted into the temperature fuse, the first hole, and the second hole.

Temperature fuse and electrical junction box

An electrical junction box includes a first conductive plate, a second conductive plate adjacent to the first conductive plate without contacting the first conductive plate, a switching element including a first terminal connected to the first conductive plate, a second terminal connected to the second conductive plate, and an element body on which the first terminal and the second terminal. A circuit board opposes and is spaced apart from the second conductive plate. A cover has an open side and covers the switching element and the circuit board. The cover includes a partitioning plate that partitions an inside of the cover so as to form a first chamber. The element body of the switching element is arranged in the first chamber, a second chamber is formed inside the cover by the partitioning plate and the second conductive plate, and the circuit board is arranged in the second chamber. An electrical junction box includes a first conductive plate, a second conductive plate adjacent to the first conductive plate without contacting the first conductive plate, a switching element including a first terminal connected to the first conductive plate, a second terminal connected to the second conductive plate, and an element body on which the first terminal and the second terminal. A circuit board opposes and is spaced apart from the second conductive plate. A cover has an open side and covers the switching element and the circuit board. The cover includes a partitioning plate that partitions an inside of the cover so as to form a first chamber. The element body of the switching element is arranged in the first chamber, a second chamber is formed inside the cover by the partitioning plate and the second conductive plate, and the circuit board is arranged in the second chamber.

An electrical connection device includes a first conductive plate provided with a cutout in a circumferential edge portion of the first conductive plate and a second conductive plate adjacent to the first conductive plate without contacting the first conductive plate. A switching element includes a first terminal connected to the first conductive plate, a second terminal connected to the second conductive plate, and a control terminal, and that is turned on or off according to a voltage of the control terminal, wherein the electrical connection device further includes an insulator embedded in the cutout. A conductive path is provided on the surface of the insulator and that does not contact the first conductive plate, and to which the control terminal is connected.

Electrical connection device

A plate-shaped conductor is placed on an upper surface of a plate-shaped heat dissipation member with an insulation member interposed therebetween. A heat insulation member is placed at a location that is different from a location where the conductor is placed, on the upper surface of the heat dissipation member. An FET is electrically connected to the conductor. When current flows through the FET, the FET generates heat. A microcomputer that outputs a control signal for controlling operation of the FET is connected to an upper surface of the circuit board and is located opposite to the heat insulation member with the circuit board interposed therebetween.

Growing community of inventors

Mie, Japan

Akira Haraguchi