| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation sensor which reduces a manufacturing cost and has improved workability.SOLUTION: A rotation sensor 1 has: a bottom face part 2a arranged at an interval from the surface of a rotor; a side face part 2b forming a hollow internal space together with the bottom face part 2a; a case 2 having an opening 2c provided in an opposite side to the bottom face part 2a of the side face part 2b; a plurality of lead frames 3X and 3Y of which the tip portion are inserted into the case 2 through the opening 2c; a magnetic detection section 7 which is provided on the tip portion of the lead frames 3X and 3Y that are arranged in parallel with one another and detects a change in a magnetic field of a magnetic substance provided on the rotor; a spacer 13 which is interposed between the lead frames 3X and 3Y and the side face part 2b while abutting on the inner wall surface of the side face part 2b; and an internal filling resin 8 filling a space portion except the spacer 13, the magnetic detection section 7 and the lead frames 3X and 3Y in the internal space.SELECTED DRAWING: Figure 1 |
