| 摘要 |
PURPOSE:To secure grounding and to reduce cost greatly by connecting one terminal of an earth plate of a conductive material to a magnetic core and a shield plate while connecting the other terminal to a shield case, and forming a core support of a nonconductive material. CONSTITUTION:Inward ends of magnetic cores 1 and 1' are fitted in opening parts 8a at ends of an earth plate 8 formed of a conductive metallic plate, etc., and held securely by being pressure-welded to projections 8b. Further, the inward end of a shield plate 2 is engaged with a notch part 8c and also held by being pressure-welded to a projection 8d. The other end of the earth plate 8 is reduced in width to fix a bent part 8e extending to a shield case side 3 to the shield case 3. Thus, earthing is secured by using the earth plate 8, so a core support 4 for holding the core 1 and shield plate 2 may be manufactured by using an inexpensive nonconductive material, so the structure is simplified to reduce the manufacturing cost. |
