Koa Corporation

Ngk Insulators, Inc.

Soya Miyajima

Yasuhito Yajima

Takayuki Ogasawara

Yoji Kobayashi

Ryo Osawa

Motoi Kitabayashi

Provided is a current measuring device for measuring current, including a conductor adapted to pass current therethrough, at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction, and a substrate to which the voltage sensing terminals are connected. The substrate is long in the current flowing direction, and connection portion of the substrate that are connected to the voltage sensing terminals are arranged closer to one end side of the substrate in the lengthwise direction.

Current measuring device

A resistor element including a cylindrical ceramic support having two openings open on longitudinally opposite end faces thereof, an electrically resistive layer formed on an outer circumferential surface, a pair of electrical conductors for connecting the electrically resistive layer to an external circuit, each of which has an end portion inserted into a corresponding one of the openings of the ceramic support, and an electrically conductive adhesive filling each opening of the ceramic support, for securing the end portion of the corresponding conductor to the ceramic support. The electrically resistive layer has two integrally formed extensions for covering the opposite end faces of the ceramic support, respectively, and respective inner wall surfaces of the openings of the ceramic support. The conductors are electrically connected to the extensions of the resistive layer by the electrically conductive adhesive filling each opening of the ceramic support.

Resistor element whose electrically resistive layer has extension into

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Ina, Japan

Soya Miyajima