| 摘要 |
PROBLEM TO BE SOLVED: To provide a new movable plug head for a battery charger for use in travel. SOLUTION: In the battery charger, a N-shaped fixing metal cramp is replaced with a conventional plastic cramp and a conductive metal spring plate in order to reduce the number of components and thickness of a N-shaped fixing cramp. Ultimately, the materials, assembling cost, and aggregate thickness of the battery charger are all reduced.
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