| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor whereby, even when a bus bar of a vehicle such as an electric vehicle temporarily becomes a high temperature according to change of power transferred therethrough, a magnetoelectric transducer of a current sensor measuring current of the bus bar is prevented from becoming an excessive high temperature.SOLUTION: A current sensor 1 includes an insulation body 40 which supports a magnetic core 10 penetrated by a bus bar 30 and a hall element 20 in a fixed positional relationship. The insulation body 40 includes an outer frame part 411 or an inner frame part 421 having a double-wall structure forming cavities 4110, 4210 thereinside, and constituting a cylindrical double-partition penetrating a hollow part 11 of the magnetic core 10 for partitioning between an inner periphery part of the magnetic core 10 and the bus bar 30. |
