Sumitomo Electric Industries, Limited

Sumitomo Electric Printed Circuits, Inc.

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Toyota Jidosha Kabushiki Kaisha

Sumitomo Electric Fine Polymer, Inc.

Yoshifumi Uchita

Shinichi Takase

Yoshio Oka

Yoshiro Adachi

Takayuki Tsumagari

Hirohisa Saito

Hiroki Hirai

Yusuke Suzuki

Makoto Nakabayashi

Hideo Takahashi

Jun Sugawara

Atsushi Yamanaka

Takanobu Shimada

Shingo Kaimori

Isamu Hamamoto

Satoshi Kiya

Yasuhiko Kotera

Yuichiro Yamanaka

Manabu Sudou

Jyunichi Ono

Takayuki Yonezawa

Shogo Asai

Masaya Kakimoto

Kouichi Nagamine

Masayuki Ueda

Shuji Hahakura

A flexible printed wiring board according to an aspect includes a base film, a conductive pattern disposed on one surface of the base film, and an extra length absorbing portion protruding from the base film and disposed in a direction of a plane, the extra length absorbing portion including a pattern connected portion connected to the conductive pattern, a coupling portion having a first linear wiring portion, a first arcuate wiring portion, and a second linear wiring portion coupled in this order continuously from the pattern connected portion, and a connecting terminal connected to the coupling portion, the pattern connected portion and the connecting terminal being opposite to each other in a direction in which the extra length absorbing portion protrudes.

Flexible printed wiring board and battery wiring module

A connection module includes a FPC and bus bars connected to the FPC and connecting the electrode terminals of power storage elements that are adjacent to each other. The FPC includes a first wiring portion, a second bus bar mount portion, and a third bus bar mount portion to which the bus bars are connected. The FPC further includes a second expandable/contractable portion and a third expandable/contractable portion. The second expandable/contractable portion is continuous from the second bus bar mount portion and allowed to be expanded and contracted in a direction to be closer to and farther away from the first wiring portion and the third bus bar mount portion. The third expandable/contractable portion is continuous from the third bus bar mount portion and allowed to be expanded and contracted in a direction to be closer to and farther away from the second bus bar mount portion.

Connection module

A flexible printed circuit board includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on an opposite surface of the base film and situated at least at a position opposite the terminal connecting area, wherein the reinforcement member has one or more lines of hollow holes aligning with a width direction thereof.

Flexible printed circuit board

A sensor unit disclosed herein is a temperature sensor unit to be attached to an energy storage device. The temperature sensor unit includes an FPC to be positioned on an energy storage device body, a temperature sensor connected to a detection line of the FPC, a housing disposed on the FPC and covering the temperature sensor, and a biasing member elastically and deformably held in the housing and configured to bias the lower housing of the housing toward the energy storage device body by elastic restoring force to bring the temperature sensor into contact with the energy storage device body with the FPC therebetween.

Sensor unit and energy storage module

A sensor unit disclosed herein is a sensor unit that is to be mounted in a housing section included in a device, and the sensor unit includes a FPC including a detection line and having flexibility, a temperature sensor connected to a connection portion of the detection line on a surface of the FPC, and an elastic member disposed on the surface of the FPC so as to be elastically deformable. The elastic member is to be elastically compressed within the housing section to press a first plate member mounted on a back surface of the FPC toward the device by a resilient force.

Sensor unit

A substrate for a printed circuit board according to an embodiment of the present invention includes a base film and a metal layer disposed on at least one of surfaces of the base film. In the substrate for a printed circuit board, an amount of nitrogen present per unit area, the amount being determined on the basis of a peak area of a N1s spectrum in XPS analysis of a surface of the base film exposed after removal of the metal layer by etching with an acidic solution, is 1 atomic % or more and 10 atomic % or less.

Substrate for printed circuit board, printed circuit board, and method for producing substrate for printed circuit board

According to one aspect of the present invention, a method of manufacturing a flexible printed interconnect board, including an insulating base film; a conductive pattern that is layered on one surface side of the base film; and a plurality of connection terminals that are fixed to a terminal connection area on one edge side of the conductive pattern, includes: fixing the plurality of connection terminals in parallel to a component fixing jig; and mounting the plurality of fixed connection terminals together with the component fixing jig.

Method of manufacturing flexible printed interconnect board

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated opposite at least the terminal connecting area, wherein a thickness of the reinforcement member increases toward the one end edge in a stepwise or gradual manner.

A terminalincludes a terminal connection portionconnected to a counterpart terminal and a board connection portionconnected to a conductive pathof a board. The board connection portionhas a plate shape portionthat is a plate shape. The plate shape portion is disposed behind the terminal connection portionand is soldered to the conductive pathof the board. The board connection portion has a plate-shape first projection wallsA toD that are bent from edge portions of a lateral direction side of the plate shape portionand that project to an opposite side to the boardside. The plate shape portionand the first projection wallsA toD have a plating layerthat is formed on a plate surface of the plate shape portion and the first projection walls.

Board with terminal

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated at least at a position opposite the terminal connecting area, wherein a shape of an end edge of the reinforcement member on the same side as an opposite end edge of the conductive pattern includes a periodic form constituted by curved lines.

A flexible printed circuit board according to an aspect of the present invention includes a base film having insulating properties and a conductive pattern laminated to one surface side of the base film. The conductive pattern forms part of a circuit and includes at least one fuse portion having a cross section smaller than the other part. The flexible printed circuit board includes at least one opening passing through front and rear surfaces on at least one of the right and left sides of the fuse portion in a two-dimensional view.

A battery wiring module includes bus bars and a flexible wiring board having wires connected to the respective bus bars. The flexible wiring board has a body portion and extensions extending from the body portion toward the respective bus bars. Each of the extensions supports one of the wires and has an end section where a pad is arranged, that is part of each of the wires. Each of the bus bars has at least one cutout portion, and the pad is arranged on each of the bus bars such that the pad overlaps at least part of at least one cutout portion. The pad and the at least part of the at least one cutout portion are connected to each other with solder.

Battery wiring module and power supply device provided with battery wiring module

An object of the present invention is to provide an adhesive composition for a printed wiring board, the adhesive composition having a good heat resistance. Another object of the present invention is to provide a coverlay for a printed wiring board, a copper-clad laminate, and a printed wiring board, all of which use the adhesive composition for a printed wiring board. The present invention provides an adhesive composition for a printed wiring board, the adhesive composition containing a siloxane-modified polyimide that includes structural units represented by formulae (1) and (2) below, an epoxy resin, and an inorganic filler. The siloxane-modified polyimide has a weight-average molecular weight (Mw) of 25,000 or more and 150,000 or less. A content of the inorganic filler is 10 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the siloxane-modified polyimide. In formulae (1) and (2), Ar represents a tetravalent aromatic tetracarboxylic acid residue, m is 0.35 or more and 0.75 or less, and n is 0.25 or more and 0.65 or less. Rin formula (1) represents a divalent diamine siloxane residue, and Rin formula (2) represents a divalent aromatic diamine residue. 

Growing community of inventors

Shiga, Japan

Yoshifumi Uchita