| 摘要 |
PROBLEM TO BE SOLVED: To prevent stress from being applied to a solder connecting part or the like with a simple constitution, when fixing a module power supply to a power supply board by screw fastening. SOLUTION: The stress to be applied to other region of the power supply board 11 can be relieved since only a small piece 22 formed between a penetration hole 14 and a slit 21 is elastically deformed even if a screw member 15 is further screwed while the head 15B of the screw member 15 is made to abut against the power supply board 11 when a male screw 15A of the screw member 15 is screwed into an installation tool 6 of the module power supply 1 via the penetration hole 14. By this, the stress is prevented from being applied to the solder connecting part unlike a conventional one, and the long-term reliability of the power supply board as a power supply unit can be secured with a simple constitution where only the slit 21 is formed at the power supply board 11. COPYRIGHT: (C)2009,JPO&INPIT
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