Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Other

Shigeki Yamane

Takehito Kobayashi

Yukinori Kita

Yoshikazu Sasaki

Tomohiro Ooi

Takahiro Onizuka

Toshiyuki Tsuchida

Junya Aichi

Isao Isshiki

Shinji Kawakita

Hirotoshi Maeda

Takuya Ota

Tadashi Tomikawa

Kyungwoo Kim

Tou Chin

Ryuji Nakanishi

Shun Takamizawa

Yoshihiro Tozawa

Koji Kasai

Arinobu Nakamura

Yoshito Oka

Manabu Hashikura

Tsuguo Nishimura

Tomoki Kanou

Fumiaki Mizuno

Futoshi Nishida

Masao Shibata

Kouichi Takagi

Toru Takahashi

Xiaoguang Zheng

Hidemasa Yoshida

Keizo Ikeda

Kazuhide Kitagawa

Tsuyoshi Hosokawa

Kouzou Kimura

Kouji Yamashita

Takayuki Tomita

Youzou Nishiura

Tomoki Kano

Hayato Fukushima

A board unit includes: a board stack including a first circuit board and a second circuit board that are supported while being spaced apart from each other; an electronic component mounted on the first circuit board; a first heat dissipation member that covers the board stack from outside of the first circuit board; a second heat dissipation member that covers the board stack from outside of the second circuit board; a first heat transfer portion that thermally connects the electronic component and the first heat transfer portion; and a second heat transfer portion that thermally connects the electronic component and the second circuit board. The electronic component has a body located between the first circuit board and the second circuit board, and the second heat transfer portion is partially provided at a position that corresponds to the body of the electronic component.

Board unit

An electrical junction box includes: a bus bar; a frame that holds the bus bar; and a temperature detection member that detects the temperature of the bus bar, wherein the temperature detection member includes a detection main body part capable of detecting temperature, and a wiring part extending from the detection main body part, and is held by one or more holding parts, the frame is integrally molded in a shape including a frame part surrounding a periphery of at least a part of the bus bar that includes a detection target portion to be subjected to detection by the temperature detection member, and at least one holding part of the one or more holding parts, and the at least one holding part of the one or more holding parts is provided so as to be located inward of the frame part.

Electrical junction box

An inductor includes: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and support portions that support, when placed on a circuit board, electronic components at a height at which the electronic components can be accommodated on the circuit board side with respect to the core holding portion; and a shield portion that is provided on the circuit board side with respect to the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path.

Inductor, inductor with circuit board, and electrical junction box

A circuit assembly that includes an inductor including a core; a fixation member to which the inductor is fixed; a base that is attached to the core, wherein: the fixation member is made of a first material having a coefficient of thermal expansion larger than a coefficient of thermal expansion of the core, and the base is made of a second material having a coefficient of thermal expansion larger than the coefficient of thermal expansion of the core and smaller than the coefficient of thermal expansion of the fixation member; and an adhesive layer that is disposed between the base and the fixation member, and that bonds the base and the fixation member together.

Circuit assembly

A circuit assembly where the circuit board includes a first surface and a second surface that is opposite to the first surface and on which a plurality of bus bars are routed, the inductor includes a main body and a terminal that is led out from the main body and has a shape that is bent toward the circuit board, and a leading end of the terminal is connected through a screwing member to a bus bar of the plurality of bus bars exposed from an opening provided on the circuit board, the screwing member is held in an insulating holder housed in a housing recess provided in the heat dissipation plate, and the heat dissipation plate is overlaid so as to transfer heat on the circuit board on the second surface of the circuit board.

An electrical junction box includes: a circuit board to which an electronic component is connected; and a frame positioned with respect to the circuit board. The frame integrally includes a sub frame that surrounds at least part of a periphery of the electronic component. The sub frame is provided with a holding portion that holds the electronic component in the holding portion.

A circuit assembly includes: a substrate with an electrically conducting path; plate-shaped busbars that have connection portions connected to the electrically conducting path of the substrate, and are arranged in an orientation in which plate surfaces thereof intersects with a surface of the substrate; a heat discharge member that is laid on a side of the substrate opposite to the busbars, and is configured to discharge heat of the substrate; and a resin frame that extends along the busbars, and holds the busbars while being in intimate contact with the busbars, wherein the frame includes mounting portions mounted on at least either the substrate or the heat discharge member.

Circuit assembly and electrical junction box

A circuit assembly includes: a circuit board; an inductor that is disposed on the circuit board, and that includes a coil including a winding portion made by winding a winding wire, and a core member; and a heat dissipation plate that is disposed on the opposite side of the surface of the circuit board on which the inductor is disposed, wherein a through hole is provided in a region of the circuit board that corresponds to the inductor, and a receiving protrusion that penetrates the through hole and protrudes to a surface side of the circuit board on which the inductor is disposed, and that is in heat transfer contact with the coil and the core member is provided in a region that corresponds to the through hole in the heat dissipation plate.

A circuit assembly includes a circuit board on which a coil is mounted, a heat sink, and a heat spreading plate that is separate from this heat sink. A first insulating adhesive layer is interposed between the circuit board and the heat spreading plate, and the heat spreading plate and the heat sink are fixed by a first fixing hole for a heat sink and a bolt. Accordingly, warping of the circuit board is suppressed.

A coil assembly includes a coil unit in which a coil obtained by winding a winding wire is disposed around a magnetic core, a coil case that accommodates the coil unit, and a potting material with which an inside of the coil case is filled, and the coil case has an elastic fixing portion that is attachable to a resin member to which the coil case is to be fixed. The above-described configuration makes it possible to provide a coil assembly that is unlikely to crack and generate abnormal noises.

Coil assembly, structure for attaching coil assembly, and electrical connection box

An electrical junction box that includes a circuit board on which a coil element is installed; a partition wall that surrounds the coil element and separates an installation region on the circuit board on which the coil element is installed from a region around the installation region; a frame that is formed in one piece with the partition wall and surrounds the circuit board; a heat dissipation plate on which the circuit board and the frame are placed; and a cover that covers the circuit board from the frame side, wherein the coil element is fixed to the partition wall using a synthetic resin material, and wherein the frame and the heat dissipation plate are positioned relative to each other through a recess-projection engagement, and the cover is fixed to the heat dissipation plate using screws.

A circuit structure includes a circuit board mounted with electronic components, a heat release member overlaid by the circuit board and releasing heat of the circuit board, a screw screwing the circuit board to the heat release member, and a spacer on which an insertion hole is formed to insert a shaft portion of the screw and the spacer is arranged between the circuit board and the screw to receive the screw. The spacer includes a board presser pressing the circuit board and a heat release member presser pressing the heat release member when the circuit board is screwed to the heat release member.

Circuit structure, electrical junction box, and spacer

An electrical connection box includes a bus bar, a case to which the bus bar is fixed, a terminal that is connected to the bus bar, a fixing member that fixes a connection portion at which the terminal and the bus bar are connected to each other, and a base member that holds the fixing member. The fixing member and the base member are disposed at a position at which the fixing member and the base member overlap the connection portion of the bus bar, and when the connection portion at which the terminal and the bus bar are connected to each other is fixed, the base member moves in a direction in which the base member comes into contact with the bus bar.

Electrical connection box

Provided is a circuit assembly that includes: a circuit board that has a connection opening; a plurality of busbars that are laid on one surface side of the circuit board; a coil that includes a main portion and a plurality of lead terminals, the lead terminals being connected to the plurality of busbars exposed through the connection opening; and a heatsink that is laid, via an adhesive agent, on surfaces of the plurality of busbars that face away from the circuit board. The circuit board is provided with a substrate through-hole in the vicinity of the connection opening, and the plurality of busbars are provided with a busbar through-hole at the position that corresponds to the substrate through-hole.

A circuit assembly includes a circuit board, a heat dissipation member on which the circuit board is placed and that is configured to release heat of the circuit board, an insulating layer that is formed on a surface on the circuit board side of the heat dissipation member, a bonding portion made of a bonding agent that is arranged in a predetermined region between the circuit board and the heat dissipation member, and an adhesive portion that is arranged in a region other than the predetermined region between the circuit board and the heat dissipation member and that is made of an adhesive with which the circuit board and the heat dissipation member are bonded to each other with lower bonding force than with the bonding agent.

Growing community of inventors

Mie, Japan

Shigeki Yamane