| 摘要 |
PROBLEM TO BE SOLVED: To provide a transformer constituted so as to secure insulation between a primary coil and a secondary coil without using a special electric wire.SOLUTION: A bobbin 15 is formed by being provided with partition plate parts 7, 8 which project in the direction crossing an axis O1 of a core insertion hole 19 to section a primary coil storage space 9 for storing a primary coil 16 and a secondary coil storage space 10 for storing a secondary wiring 3. In addition, engaging grooves 23 which recess on the base end side of the projection direction from the tips are formed on the outer peripheral edges 7a, 8a at the tips of the projection directions of the partition plate parts 7, 8. In addition, the bobbin 15 is constituted by being provided with an insulation member 17 which has a block plate part 25 and an engaging projection 26 projected from one surface of the block plate part 25, engages the engaging projection 26 into the engaging groove 23 to be attached to the bobbin 15, and blocks openings on the tip sides of the partition plate parts 7, 8 of the primary coil storage space 9 and/or a secondary coil storage space 10 by the block plate part 25. |
