| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor having high reliability by improving a rapid response for detecting a magnetic field generated by an electric current flowing in a current path of a three-phase current.SOLUTION: A current sensor 10 comprises a housing 20, a substrate 30, a magnetic detection element 40, and shields 50. The shields 50 include support parts 51 placed on both sides of the magnetic detection element 40 and a current path 60, flat parts 52, and ends 53. The ends 53 are separated each other. In a U phase, the flat parts 52 are arranged below a substrate 30, and the magnetic detection element 40 is mounted on the substrate 30 so as to be in a position farther away from a V phase. Further, a W phase has a bilaterally symmetric positional relation with the U phase. In the V phase, the flat parts 52 are respectively provided on the shields 50 on both sides and above the substrate 30, and the magnetic detection element 40 is mounted on the substrate 30 so as to be positioned at a center part. |
