US 11,988,726 B2
Current sensor
Cheng Zheng, Jiangsu (CN); and Xunyu Zhang, Jiangsu (CN)
Assigned to ALPS ALPINE CO., LTD., Tokyo (JP)
Filed by Alps Alpine Co., Ltd., Tokyo (JP)
Filed on Jun. 22, 2022, as Appl. No. 17/846,464.
Application 17/846,464 is a continuation of application No. PCT/CN2020/132626, filed on Nov. 30, 2020.
Claims priority of application No. 201911354406.9 (CN), filed on Dec. 25, 2019.
Prior Publication US 2022/0326318 A1, Oct. 13, 2022
Int. Cl. G01R 19/00 (2006.01); G01R 33/02 (2006.01)
CPC G01R 33/0206 (2013.01) [G01R 19/0092 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A current sensor, comprising: a plurality of plate-shaped bus bars; a magnetic detection portion arranged corresponding to each of the bus bars that detects a magnetic field formed when current is flowing in each of the bus bars; and a shell that holds the plurality of bus bars integrally with the plurality of bus bars, wherein:
the plurality of bus bars are arranged in a first direction,
at least some of the plurality of bus bars comprise: a first conductor portion extending in the first direction; a second conductor portion connected to one end of the first conductor portion and extending in a second direction crossing the first direction; and a third conductor portion connected to the other end of the first conductor portion and extending in a third direction crossing both the first direction and the second direction,
a dimension of the first conductor portion extending in the first direction is a length of the first conductor portion, a dimension of the first conductor portion in the second direction is a width of the first conductor portion, and a dimension of the first conductor portion in the third direction is a thickness of the first conductor portion,
the at least some of the bus bars comprise a first bus bar and a second bus bar in which the width of the first conductor portion is greater than the thickness of the first conductor portion and which are adjacent in the first direction, when viewed from the third direction, the first conductor portion of the first bus bar and the first conductor portion of the second bus bar are spaced apart from each other by a certain distance in the second direction, and when viewed from the second direction, the first conductor portion of the first bus bar and the first conductor portion of the second bus bar are spaced apart from each other by a certain distance in the third direction.