| 摘要 |
PROBLEM TO BE SOLVED: To provide electrical equipment for preventing the slack of a screw by relatively simple configurations only by advising the shape of a land, and for strengthening the connection of a wiring board with a case supporting member and an illuminator using the electronic equipment as a discharge lamp lighting device. SOLUTION: When a wiring board 1 is fixed to a support member 4, the screw section of a screw is put through a through hole 8 of a support member 4 and a screw insertion hole 7 of the wiring board 1 to screw and fasten the screw section and a nut 6 at one side of the wiring board 1. Then, a handler 10 is piled up so that the nut 6 and the top end side of the screw section can be covered, and so as to be connected to a land 9. When the handler 10 is piled up, it is heated, and since any solder does not substantially exist between the nut 6 and the wiring board 1, any gap is prevented from being generated according as the solder is melted. Therefore, it is possible to prevent the nut 6 from being loosened, or its connection with the support member 4 from becoming unstable. COPYRIGHT: (C)2009,JPO&INPIT |
