US 12,135,342 B2
Current detection device
Manabu Tamura, Miyagi-ken (JP); and Minoru Abe, Miyagi-ken (JP)
Assigned to Alps Alpine Co., Ltd., Tokyo (JP)
Filed by Alps Alpine Co., Ltd., Tokyo (JP)
Filed on Dec. 2, 2022, as Appl. No. 18/061,337.
Application 18/061,337 is a continuation of application No. PCT/JP2021/023376, filed on Jun. 21, 2021.
Claims priority of application No. 2020-120611 (JP), filed on Jul. 14, 2020.
Prior Publication US 2023/0092098 A1, Mar. 23, 2023
Int. Cl. G01R 15/20 (2006.01); G01R 15/14 (2006.01); G01R 19/00 (2006.01)
CPC G01R 15/207 (2013.01) [G01R 15/148 (2013.01); G01R 19/0092 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A current detection device comprising:
a plurality of current detection units arranged in the current detection device, each of the current detection units including:
a bus bar extending in a first direction, configured to allow a current to be measured to flow therethrough;
a magnetic sensor facing the bus bar in a second direction; and
a pair of shields disposed at a position corresponding to the magnetic sensor and facing each other in the second direction, such that the bus bar and the magnetic sensor are interposed between the pair of shields,
wherein the plurality of current detection units are arranged in a third direction such that the bus bars of the plurality of current detection units are aligned to one another, and
wherein as viewed from the second direction, the position of the shield along the first direction in one of the plurality of current detection units is different from the position of the shield along the first direction in an adjacent current detection unit adjacent to the one current detection unit,
wherein, as viewed from the first direction, the pair of shields in the one current detection unit and that in the adjacent current detection unit partially overlap each other in the third direction,
and wherein, as viewed from the second direction, the pair of shields in each current detection unit has at least one cutout in an outer edge thereof, such that the cutout of the pair of shields in the one current detection unit fits another cutout of the pair of shields in the adjacent current detection unit in a plan view from the second direction, in a portion where the pair of shields partially overlap each other in the third direction.