| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery pack excellent in reliability capable of preventing adjacent outer connection terminals of a circuit board from short circuiting by a connecting terminal of an outside equipment, or preventing protrusions for short-circuiting prevention from being peeled off from a circuit board to have outer connection terminals short-circuited due to droplets. SOLUTION: The battery pack includes a flat rectangular unit battery 2, a circuit board 5 arranged on a top face of the unit battery 2, and a resin mold 7 integrating the circuit board 5 with the unit battery 2. A plurality of outer connection terminals 9 are provided on a top face of the circuit board 5. These terminals 9 are exposed to an outside face through an opening 33 of the resin mold 7. Each protrusion 34 inhibiting short circuiting of the adjacent outer connection terminals 9 is integrally formed with the resin mold 7. A face of the circuit board 5 opposed to the protrusion 34 is given a surface roughening treatment, and the protrusion 34 and the circuit board 5 are firmly integrated through a joint part 36 entering into the surface roughened part 35. COPYRIGHT: (C)2009,JPO&INPIT
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