| 摘要 |
The description relates to a device for protecting an electronic circuit of an electrical instrument against excessively high voltages. In order to prevent the circuit from damage and cut off the power supply in the event of excessively high electrical energy from the power supply or charging voltage, there is a component which limits an overvoltage applied from outside to a given value for a certain period and, through its consequent heating, permanently cuts off the circuit. To this end, the current path on a printed circuit board is taken at at least one point via pairs of soldered areas, one of which is connected to the current source and the other to the consumer and both soldered areas of a pair are bridged by the component which is held in place by a spring under mechanical tension and is reliably released from the pair of soldered areas in the event of their unsoldering.
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| 申请人 |
FRIWO GERAETEBAU GMBH, 48346 OSTBEVERN, DE;VARTA BATTERIE AG, 30419 HANNOVER, DE;SIEMENS AG, 80333 MUENCHEN, DE |
发明人 |
BOTHE, MICHAEL, DIPL.-ING., 49549 LADBERGEN, DE;WEGENER, ARMIN, DIPL.-ING., 48291 TELGTE, DE;HEYDECKE, JUERGEN, DR., 58553 HALVER, DE;KNOP, INGMAR, 73433 AALEN, DE;GOEBEL, KLAUS, DIPL.-ING., 80804 MUENCHEN, DE;SKWIRBLIES, KLAUS-DIETER, 85661 FORSTINNING, DE;PETERS, RAINER, DIPL.-ING., 82008 UNTERHACHING, DE |
