| 摘要 |
<P>PROBLEM TO BE SOLVED: To ease stress generated on a core accompanied with the expansion and contraction of a case, and to simply and certainly prevent the deformation of the core. <P>SOLUTION: In a current sensor structure 1, a non-magnetic metallic plate 14 is disposed along an inner surface 3a of a wall portion 3 of an insulation case 2, and a magnetic core 13 is disposed so as to overlap the metallic plate. The metallic plate 14 is interposed between the wall portion 3 and the core. The wall portion 3 and the metallic plate 14, and the metallic plate and the core 13 are bonded by a mold agent 17 filled in the case. The metallic plate 14 absorbs the expansion and contraction of the wall portion 3 to ease a stress load on the core 13. The width of the metallic plate 14 is formed to be equal to or wider than the width of the core 13. <P>COPYRIGHT: (C)2012,JPO&INPIT |
