CURRENT DETECTION DEVICE

WIPO Patent Application WO/2012/172701

A1

The purpose of the present invention is, in a current detection device for detecting the current flowing through a bus bar, to reduce the size of the device by employing a small magnetic core, to prevent the excessive heat generation of the bus bar, to facilitate installation work, and to save space required for the installation work. In the current detection device (1), a folded bus bar (30) is formed in a shape, the whole of which is folded. The folded bus bar (30) has: a bar-shaped passing-through portion (31) that passes through the hollow portion (11) of a magnetic core (10) along a first direction; two bar-shaped extended portions (32) that extend on both sides of the passing-through portion (31) along a second direction orthogonal to the first direction; and two plate-like passing-through portions (31) connected to the respective two extended portions (32). The width of terminal portions (33) is larger than those of the passing-through portion (31) and the extended portions (32). An insulated chassis (40) holds the magnetic core (10), a hall element, and the folded bus bar (30) in a certain positional relationship while the two terminal portions (33) are exposed to the outside.

NAKAJIMA HIROKATSU (JP)
CHAEN SATORU (JP)
NISHI KOUJI (JP)
MISAKI TAKASHI (JP)

PCT/JP2011/074380

December 20, 2012

October 24, 2011

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AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
NAKAJIMA HIROKATSU (JP)
CHAEN SATORU (JP)
NISHI KOUJI (JP)
MISAKI TAKASHI (JP)

G01R15/20

JPH0993771A	1997-04-04
JPH06130087A	1994-05-13
JP2003045231A	2003-02-14

YOSHITAKE Hidetoshi et al. (JP)
Hidetoshi Yoshitake (JP)

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