| 摘要 |
PROBLEM TO BE SOLVED: To provide a low cost battery unit mainly used for various electronic equipment and for conducting electric connection and disconnection absolutely.SOLUTION: When providing a through-hole 13 to a land 12A and 12B to which an electrode 6 is soldered, a flow-in of a molten solder 7 into the through-hole 13 and an occurrence of a solder ball or the like are prevented in connecting a terminal 15 of the equipment side to the electrode 6, so that no additional step is required to remove this and the battery unit is simply manufactured. In addition, a short circuit or the like between terminals of a switching element 3 and a control element 4 is prevented to obtain a battery unit for conducting electric connection and disconnection absolutely. |
