US 12,135,340 B2
Current detection device with voltage detecting portion positioning
Ryou Osawa, Ina (JP)
Assigned to KOA CORPORATION, Ina (JP)
Appl. No. 17/919,944
Filed by KOA CORPORATION, Ina (JP)
PCT Filed Apr. 20, 2021, PCT No. PCT/JP2021/016076
§ 371(c)(1), (2) Date Oct. 19, 2022,
PCT Pub. No. WO2021/220895, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 2020-078262 (JP), filed on Apr. 27, 2020.
Prior Publication US 2023/0152352 A1, May 18, 2023
Int. Cl. G01R 15/14 (2006.01); H01C 1/14 (2006.01); H01C 7/06 (2006.01); H01C 17/00 (2006.01)
CPC G01R 15/146 (2013.01) [H01C 1/14 (2013.01); H01C 7/06 (2013.01); H01C 17/00 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A current detection device used for current detection, comprising:
a resistance element; and
a pair of electrodes connected to both ends of the resistance element in a first direction,
wherein the current detection device has a projecting portion projecting in a second direction,
the projecting portion has a portion of the resistance element and portions of the pair of electrodes,
the first direction is a direction in which the pair of electrodes are arranged, and the second direction is perpendicular to the first direction,
each electrode has a first wall portion along the first direction forming a portion of the projecting portion, and a second wall portion along the second direction forming the portion of the projecting portion,
each electrode has a detection area demarcated by the first wall portion, the second wall portion, a leading end portion, and a contact surface, the leading end portion being a boundary between the projecting portion and a body of the electrode, the contact surface being at least partially in contact with the resistance element,
each electrode has a voltage detecting portion, the voltage detecting portion being arranged in the detection area with a distance of 0.5 mm or more between the leading end portions,
a thickness of the electrode is thicker than that of the resistance element,
the detection area projects more than the resistance element in a thickness direction of the current detection device, and
the electrode and the resistance element are stepped.