| 摘要 |
PURPOSE:To improve a fitting strength by a method wherein, when a power transformer, directly attached to a printed circuit board, is fixed to a casing itself, a casing cover is also tightened together by screwing. CONSTITUTION:An apparatus for fitting a power transformer 3, attached directly to a printed circuit board 4, to a casing itself 2 is fixed by a tapping screw 5 with the positioning hole 1a of a casing cover 1, the positioning hole 3a of the power transformer 3 and the screw hole 2a of the cubicle itself 2. The cover 1 is fixed firmly to the casing itself 2 by additional tapping screw 6. With this constitution, a fitting strength can be improved and a load applied to the circuit board 4 by dropping can be reduced and damage can be avoided.
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