Charging station
First Claim
1. A charging station comprising:
- an electric charging connection configured to connect a charging cable of an electric vehicle;
the charging station configured to read, at the electric charging connection, a load capacity identifier specifying an electrical load capacity of the charging cable;
a polyphase feed line connected to the electric charging connection to carry a charging current to the electric charging connection of the charging station; and
an overload protection device with automatic switchover having a switching device configured to connect to the polyphase feed line and monitor the polyphase feed line to disconnect the charging current flowing through the feed line in response to an overload, the switching device comprising an individually and independently actuable switch for each phase of the polyphase feed line,wherein the overload protection device selects an identifier-specific tripping criterion assigned to the load capacity identifier of the charging cable and stored in the overload protection device, monitors the individual phases of the polyphase feed line, compares each individual phase to the selected tripping criterion, and disconnects the polyphase feed line on the basis of any individual phase of the polyphase feed line exceeding the selected tripping criterion.
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Accused Products
Abstract
A single-phase or multi-phase feed line is connected to a charging connection of the charging station, via which feed line the charge current flows to the charging connection of the charging station regardless of the load capacity identifier of the charge cable. An overload protection device is connected to and monitors the feed line. The overload protection device is an automatically switching overload protection device in which at least one identifier-specific trigger criterion is stored for each of at least two load capacity identifiers of the charging cable. The overload protection device is capable of automatically selecting the identifier-specific trigger criterion assigned to the load capacity identifier depending on the load capacity identifier of the charging cable, and of shutting off a switching device of the overload protection device arranged in the feed line depending on the selected trigger criterion.
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Citations
20 Claims
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1. A charging station comprising:
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an electric charging connection configured to connect a charging cable of an electric vehicle;
the charging station configured to read, at the electric charging connection, a load capacity identifier specifying an electrical load capacity of the charging cable;a polyphase feed line connected to the electric charging connection to carry a charging current to the electric charging connection of the charging station; and an overload protection device with automatic switchover having a switching device configured to connect to the polyphase feed line and monitor the polyphase feed line to disconnect the charging current flowing through the feed line in response to an overload, the switching device comprising an individually and independently actuable switch for each phase of the polyphase feed line, wherein the overload protection device selects an identifier-specific tripping criterion assigned to the load capacity identifier of the charging cable and stored in the overload protection device, monitors the individual phases of the polyphase feed line, compares each individual phase to the selected tripping criterion, and disconnects the polyphase feed line on the basis of any individual phase of the polyphase feed line exceeding the selected tripping criterion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12)
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10. A method for monitoring the charging process of a charging station comprising:
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reading a load capacity identifier of a charging cable connected to an electric charging connection of the charging station; monitoring a charging current in each phase of a polyphase feed line connected to the electric charging connection of the charging station; assigning an identifier-specific tripping criterion on the basis of the load capacity identifier of the charging cable; monitoring each phase of the polyphase feed line; comparing each individual phase of the polyphase feed line to the selected tripping criterion, determining, based on the comparing step, an overload in any individual phase of the polyphase feed line according to the selected tripping criterion; and disconnecting the respective polyphase feed line in response to the overload of the individual phase of the polyphase feed line. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification