| 摘要 |
An electromagnetic device has a bobbin with collars projecting from a cylindrical body, L-shaped conductive pins partially embedded in the collar so that first end portions and second end portions respectively project from the side surface and the lower surface of the collar, an insulated wire wound on the cylindrical body and connected at both ends thereof to the first end portions, a plunger projectable from and retractable into the cylindrical body, a socket holder attached to the bobbin so as to prevent the first and second end portions from damage and a socket coupled to the socket holder for connecting a cable to the second end portions, thereby allowing a manufacturer to increase the turns of the coil without enlarging the bobbin.
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