The Furukawa Electric Co., Ltd.

Furukawa Automotive Systems Inc.

Yuuichi Watanabe

Shinya Saito

Kazumasa Sakata

Kazuyuki Tanaka

Kengo Aburaya

Kenichi Yoshioka

Yuji Matsui

A board connection terminal () is connected to a circuit board that detects a current having flowed through a resistor element (). The board connection terminal () includes an intermediate part () and two connecting parts () integrated with one another. The intermediate part () has a substantially linear shape, and is connected to a shunt resistor (). The two connecting parts () have proximal ends thereof located at opposite ends of the intermediate part (), and protrude in a direction substantially perpendicular to the intermediate part (), to be connected to the circuit board. The two connecting parts () are arranged substantially in parallel to each other. The board connection terminal () comprises two board connection terminals () that are arranged with the resistor element () sandwiched therebetween. Contact resistance between the intermediate part () and the shunt resistor () is lower than conductor resistance of the intermediate part ().

Battery state detection apparatus

It is an object to provide a configuration with an enhanced sensing accuracy, in which a shunt resistance main body and a terminal member are formed as separate pieces. A shunt resistor includes a resistance main body and a terminal member () that is electrically connected to the resistance main body. The terminal member () includes a resistance connection portion () to be in contact with the resistance main body, and a circuit connection portion () provided so as to extend from the resistance connection portion (). The circuit connection portion () is divided into two parts by a slit () being formed therein. The slit () is formed up to a part of the resistance connection portion ().

Connection terminal of shunt resistor, and battery state detection device

Growing community of inventors

Shiga, Japan

Yuuichi Watanabe