| 摘要 |
PROBLEM TO BE SOLVED: To reduce a total cost by efficiently and inexpensively producing a holder case in quantities and making its assembly easy, to reliably hold power supply modules by mounting them to the holder case without having a gap between, and to change the number of power supply modules stored by a holder case having a single structure. SOLUTION: This power supply unit holds plural power supply modules 1 in parallel by a holder case. The holder case is equipped with lid cases 2A disposed on both surfaces and an intermediate case 2B disposed between the lid cases 2A. The holder case is also protrusively provided with a holder rib 15 to hold the power supply modules 1 at their home positions by arranging them in plural rows on both surfaces of the intermediate case 2B and the inner surface of lid case 2A. In the order case 2, the lid cases 2A on the both surfaces are linked to the intermediate case 2B, the power supply modules 1 are placed in plural rows and sandwiched from both sides by the holder rib 15, in order to hold them at their home positions. |
