Power supply unit for electronic devices
0 Assignments
0 Petitions
Accused Products
Abstract
A power supply unit for electronic devices has an insulating battery pack holder with a hollow portion to accommodate a battery pack detachably; a plurality of connector contacts and a switch contact formed of conductive metal and disposed inside the battery pack holder, part of each connector contact protruding toward the hollow portion, the switch contact capable of detaching from or attaching to a predetermined one of the connector contacts with a moving contact portion. When the battery pack is accommodated in the hollow portion, its electrode terminals elastically touch corresponding connector contacts to be conductively connected to a driver circuit. In removal of the battery pack from the hollow portion, when the predetermined connector contact protrudes into the hollow portion by a predetermined distance according to a reduction in urging force of the electrode terminal, the predetermined connector contact touches the switch contact to output a detection signal.
62 Citations
21 Claims
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1-6. -6. (Cancelled)
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7. A power supply unit comprising:
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a holder with a hollow portion;
a plurality of resilient connector contacts disposed inside the holder, part of each connector contact protruding toward the hollow portion, at least one of the connector contacts being a switch connector contact; and
a resilient switch contact disposed inside the holder, the resilient switch contact moving in coordination with the switch connector contact such that the switch connector contact and the switch contact are in contact when the switch connector contact protrudes into the hollow portion by at least a predetermined distance and are otherwise disengaged from each other. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A power supply unit comprising:
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a holder with a hollow portion; and
resilient means for detecting that a battery pack in the hollow portion is almost removed from the hollow portion and for switching to a backup power source before the battery pack is completely removed. - View Dependent Claims (18, 19, 20, 21)
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Specification