| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor capable of further certainly fixing a bus bar, and suppressing a measurement error.SOLUTION: A current sensor is equipped with a housing 11A storing at least magnetic sensor 15; and a bus bar 13A. The housing has a through-hole 12A in which the bus bar is inserted. The through-hole penetrates the housing in a non-magnetosensitive direction of the magnetic sensor, and has opening portions 12a and 12b at both ends in a penetrating direction. The bus bar is provided so as to expose both end portions 13a and 13b in a longitudinal direction to the outside of the through-hole, and can be removed from the housing. In a plane view to the bus bar, the magnetic sensor is disposed within a range of the width of the bus bar. In the through-hole, the width of the two opening portions are different from each other. The bus bar has a part with width larger than the width of the smaller one of the two opening portions, at a part inserted in the through-hole. At least the width at both opening portions of the through-hole and the width of the bus bar corresponding to both opening portions are same as each other.SELECTED DRAWING: Figure 4 |
