Device and Method for Providing a Quantity of Energy in Said Supply Device for Consumer

• US 20120140371A1
• Filed: 01/26/2012
• Published: 06/07/2012
• Est. Priority Date: 07/27/2009
• Status: Active Grant

• Current Assignee: innogy SE (E.ON SE)
• Original Assignee: RWE AG
• Inventors: Gaul, Armin, Diefenbach, Ingo
• Granted Patent: US 9,783,071 B2
• Time in Patent Office: Days
• US Class Current: 361/93.6
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: G01R 31/007 using microprocessors or computers
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: H02J 7/00309 Overheat or overtemperature protection
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

Supply device for providing electrical energy to a consumer electrical circuit, containing a protection and monitoring device (50) assigned individually to the consumer, to the output of which the consumer electrical circuit can be connected via connecting means (10), wherein the protection and monitoring device (50) has sensor means (31, 32) for detecting at least one electrical quantity, and an analysis device (52) controlled by the sensor means (31, 32), which contains parameterisation means for specifying in a predefinable manner at least one safety relevant triggering criterion, wherein on the at least one safety relevant triggering criterion being reached, a switching device (54) for the consumer electrical circuit can be controlled.

Claims

1. Device for providing electrical energy to a consumer electrical circuit, comprising a protection and monitoring device assigned individually to the consumer, to the output of which the consumer electrical circuit can be connected via connecting means, wherein the protection and monitoring device has sensor means for detecting at least one electrical quantity, and an analysis device controlled by the sensor means, which contains parameterisation means for specifying in a presettable manner at least one safety relevant triggering criterion, wherein on the at least one safety relevant triggering criterion being reached, a switching device for the consumer electrical circuit can be controlled.

2. The device according to claim 1, wherein the protection and monitoring device has an excess current monitoring means, which detects at least one of a size and a temporal course of an electrical current supplied.

3. The device according to claim 2, wherein a maximum permissible current value can be predefined in the consumer electrical circuit by the parameterisation means.

4. The device according to claim 2, wherein a current-time characteristic for a permissible current trajectory can be predefined by the parameterisation means.

5. The device according to claim 4, wherein the current-time characteristic corresponds to a predefinable, in particular previously stored, protection characteristic.

6. The device according to claim 1, wherein the protection and monitoring device has a fault current monitoring means.

7. The device according to claim 6, wherein the fault current monitoring means monitors an occurrence of an AC fault current, in particular an FI switch of Type A.

8. The device according to claim 6, wherein the fault current monitoring means monitors an occurrence of an DC fault current, in particular an FI switch of Type B.

9. The device according to claim 1, wherein the sensor means is a Hall sensor.

10. The device according to claim 1, wherein the sensor means is a current transformer.

11. The device according to claim 1, wherein the switching device is a power current switch, in particular at least one of a relay, a trip switch, a power transistor, a power thyristor or a combination of these components.

12. The device according to claim 1, wherein the protection and monitoring device has a default encoder, on the response of which the switching device can be triggered, regardless of whether the at least one triggering criterion has been reached.

13. The device according to claim 1, wherein an energy quantity meter fed by an energy supply device is provided upstream of the protection and monitoring device.

14. The device according to claim 1, wherein a separate energy quantity meter is assigned to each consumer.

15. The device according to claim 1, wherein the protection and monitoring device has a controllable reboot device.

16. The device according to claim 1, wherein the consumer is the battery of an electric vehicle and that the device for providing electrical energy is a charging station for an electric vehicle.

17. The device according to claim 16, wherein the protection and monitoring device receives a pilot signal of a charging control circuit of the charging station as one of its input signals.

18. The device according to claim 16, wherein the protection and monitoring device receives a “

Plug Present”

signal of a charging control circuit as one of its input signals.

19. The device according to according to claim 1, wherein the protection and monitoring device has a triggering characteristic which can be modified during operation.

22. System comprising a charging station including the Device of claim 1 which is connected to an electric vehicle.

23. Use of the protection and monitoring device of claim 1 incorporated in a charging station during the charging process of the battery of an electric vehicle.

20. Method for providing electrical energy to an electrical circuit of a separate consumer, comprising:

detection of at least one electrical quantity in the electrical circuit and forwarding this to an analysis device,

specification of a parameter for at least one safety-relevant triggering criteria in the analysis device,

controlled switching of the electrical circuit on and off on reaching the at least one safety relevant triggering criterion.

21. Method for providing electrical energy to the charging circuit of an electric vehicle, comprising:

detection of at least one electrical quantity in the charging current circuit and forwarding this to an analysis device,

specification of a parameter for at least one safety-relevant triggering criteria in the analysis device,

controlled switching of the consumer electrical circuit on and off on reaching the at least one safety relevant triggering criterion.