| 摘要 |
A power source device ( 2 ) includes a plurality of small batteries ( 3 ), a plurality of bus bars ( 4 ), a casing ( 5 ), and a battery cover ( 1 ). The small batteries ( 3 ) are stacked together in such a manner that positive electrodes ( 7 ), as well as negative electrodes ( 8 ), are alternately reversely directed. The bus bars ( 4 ) are embedded in the casing ( 5 ), and when the casing ( 5 ) covers end portions of the small batteries ( 3 ), the electrodes ( 7, 8 ) are connected together. The battery cover ( 1 ) includes a cover body ( 11 ), opening/closing covers ( 12 ), and hinges ( 13 ). The cover body ( 11 ) is attached to the casing ( 5 ). The opening/closing covers ( 12 ) can be displaced between their respective closed positions where the opening/closing covers ( 12 ) respectively cover the electrodes ( 7, 8 ) and their respective open positions where the electrodes ( 7, 8 ) are exposed.
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