| 摘要 |
When a plurality of bus bars are arranged in parallel with each other, with a simple structure, the current flowing through a bus bar to be detected can be detected at a high accuracy by suppressing the magnetic field effect from an adjacent bus bar. A plane is set as a magnetic flux detection plane, the plane being parallel with a detection region extending direction that is an extending direction in a detection region (3s) of a bus bar (3) to be detected and including a magnetic flux detection direction (S) of a sensor portion (6). An adjacent bus bar (4) comprises: a first extending portion (41) extending in a first extending direction in parallel with the magnetic flux detection plane; and a second extending portion (42) bent at one end of the first extending portion (41) in the first extending direction and extending in a second extending direction intersecting with the magnetic flux detection plane. The detection region (3s) of the bus bar (3) to be detected is set to an overlap location (OL) overlapping the first extending portion (41) in the first extending direction. |
