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AssigneeTE Connectivity Germany GmbH
InventorsTitus Ziegler, Thomas Haehnel
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The present invention relates to a switching device for opening and closing a load circuit, in particular in an electric vehicle, having at least one switch contact which can be moved from an open position into a closed position and which is held at a distance from a counter-contact in the open position and is in electrically conductive abutment with the counter-contact in the closed position. The invention further relates to a method for switching a load circuit, in particular in an electric vehicle, at least one switch contact being moved from an open position into a closed position and thereby being brought into electrically conductive contact with a counter-contact. In order to provide the most compact, light, cost-effective and reliable switching and separation unit for load currents, it is provided according to the invention that, in a safety position, the at least one switch contact is held separated from the counter-contact in order to protect the load circuit.
A switching device for opening and closing a load circuit, in particular in an electric vehicle, having at least one switch contact which can be moved from an open position (A) into a closed position (B) and which is held at a distance from a counter-contact in the open position (A) and is in electrically conductive abutment with the counter-contact in the closed position (B), wherein, in a safety position (C), the at least one switch contact is held separated from the counter-contact in order to protect the load circuit from overload, and wherein the switching device is retained by a retention force in a normal operating state (N) in which the switching device can be moved from the open position into the closed position, and when under electrical voltage in the closed position, at least in the event of an overload, an actuating magnetic field produced by a load current path has a weakening effect on a retaining magnetic field which acts on the retention force.
A method for switching a load circuit, in particular in an electric vehicle, at least one switch contact being moved from an open position (A) into a closed position (B) and thereby being brought into electrically conductive contact with a counter-contact, wherein, in the event of an overload of the load circuit, the switch contact is automatically separated from the counter-contact and moved into a safety position (C), and wherein the switching device is retained by a retention force in a normal operation state (N) in which the switching device can be moved from the open position into the closed position, and, when under electrical voltage in the closed position, at least in the event of an overload, an actuating magnetic field produced by a load current path has a weakening effect on a retaining magnetic field which acts on the retention force.
Dependencies are inferred from the claim text.