ELECTRICAL CONNECTING DEVICE AND CHARGING CABLE FOR AN ELECTRIC VEHICLE

• US 20170001529A1
• Filed: 11/14/2014
• Published: 01/05/2017
• Est. Priority Date: 01/31/2014
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: FUCHS, Thomas, MUNDRY, Alexander, NOERL, Gerald, RIEMBAUER, Christian
• Granted Patent: US 10,576,832 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: H01R 13/6616 with resistor
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H02H 5/042 using temperature dependent resistors
• 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
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

An electrical connecting device for a charging cable is for charging an electric vehicle. The electrical connecting device includes a network-side first connecting element for electrically connecting the connecting device to an electrical supply network and a charging-cable-side second connecting element for connecting the connecting device to a network-side connector of the charging cable. The first connecting element includes at least two contact elements, each connected in an electrically conductive manner to one of at least two contact elements of the second connecting element; and a first temperature sensor, used for temperature monitoring and which is electrically connected to the second connecting element via a communication cable. The second connecting element has a further contact, connectable to a corresponding further contact of the network-side connector of the charging cable to transmit a signal of the temperature sensor to the charging cable.

Claims

1. An electrical connecting device for a charging cable for charging an electric vehicle, the electrical connecting device comprising:

a supply system-end first connecting device to electrically connecting the electrical connecting device to an electrical power supply system; and

a charging cable-end second connecting device to electrically connecting the electrical connecting device to a supply system-end plug of the charging cable,

the supply system-end first connecting device including at least two contact elements, each electrically conductively connected to one of at least two contact elements of the charging cable-end second connecting device,

the supply system-end first connecting device including a first temperature sensor for temperature monitoring purposes,

the first temperature sensor being electrically connected to the charging cable-end second connecting device via a communications line,

the charging cable-end second connecting device including a further contact, electrically conductively connectable to a corresponding further contact of the supply system-end plug of the charging cable, to be configured to transmit a signal from the temperature sensor to the charging cable.

2. The electrical connecting device of claim 1, wherein the at least two contact elements of the supply system-end first connecting device are electrically conductively connected to the at least two contact elements of the charging cable-end second connecting device via a connecting cable.

3. The electrical connecting device of claim 1, wherein the supply system-end first connecting device includes a first connecting plug, and the charging cable-end second connecting device includes a second connecting plug.

4. The electrical connecting device of claim 1, wherein the connecting device further comprising:

a coding medium to determine current-carrying capacity of the electrical connecting device, the coding medium being readable via the charging cable-end second connecting element.

5. The electrical connecting device of claim 4, wherein the coding medium is readable via two contact elements arranged on the charging cable-end second connecting device the two contact elements being electrically conductively connected to corresponding contact elements formed on the supply system-end plug of the charging cable.

6. The electrical connecting device of claim 4, wherein the coding medium is in the form of a coding resistor.

7. The electrical connecting device of claim 1, wherein the supply system-end first connecting device includes a multifunctional plug.

8. A charging cable for charging an electric vehicle, the charging cable being electrically conductively connected connectable to the electrical connecting device claim 1 via a supply system-end plug,

the charging cable comprising:

a communications line, capable of electrically conductively connecting the at least two contact elements of the supply system-end plug to a control device of the charging cable to electrically conductively connect the first temperature sensor to the control device.

9. The charging cable of claim 8, wherein the supply system-end plug includes a second temperature sensor for temperature monitoring purposes, the second temperature sensor being electrically conductively connected to the control device via the communications line.

10. The charging cable of claim 9, wherein the supply system-end plug includes a switch, arranged between the second temperature sensor and the communications line, to bridge the second temperature sensor by opening when a cable extension is connected.

11. The charging cable of claim 8, further comprising:

a housing including, in addition to the control device, the supply system-end plug.

12. The electrical connecting device of claim 2, wherein the supply system-end first connecting device includes a first connecting plug, and the charging cable-end second connecting device includes a second connecting plug.

13. The electrical connecting device of claim 1, wherein the supply system-end first connecting device is a first connecting plug, and the charging cable-end second connecting device is a second connecting plug.

14. The electrical connecting device of claim 2, wherein the supply system-end first connecting device is a first connecting plug, and the charging cable-end second connecting device is a second connecting plug.

15. The electrical connecting device of claim 2, further comprising:

a coding medium to determine current-carrying capacity of the electrical connecting device, the coding medium being readable via the charging cable-end second connecting element.

16. The electrical connecting device of claim 15, wherein the coding medium is readable via two contact elements arranged on the charging cable-end second connecting device, the two contact elements being electrically conductively connected to corresponding contact elements formed on the supply system-end plug of the charging cable.

17. The electrical connecting device of claim 12, further comprising:

a coding medium to determine current-carrying capacity of the electrical connecting device, the coding medium being readable via the charging cable-end second connecting element.

18. The electrical connecting device of claim 17, wherein the coding medium is readable via two contact elements arranged on the charging cable-end second connecting device, the two contact elements being electrically conductively connected to corresponding contact elements formed on the supply system-end plug of the charging cable.

19. The electrical connecting device of claim 5, wherein the coding medium is in the form of a coding resistor.

20. The electrical connecting device of claim 15, wherein the coding medium is in the form of a coding resistor.

21. The electrical connecting device of claim 17, wherein the coding medium is in the form of a coding resistor.

22. The electrical connecting device of claim 1, wherein the supply system-end first connecting device is a multifunctional plug.

23. The electrical connecting device of claim 2, wherein the supply system-end first connecting device includes a multifunctional plug.

24. The electrical connecting device of claim 2, wherein the supply system-end first connecting device is a multifunctional plug.

25. A charging cable for charging an electric vehicle, the charging cable being electrically conductively connectable to the electrical connecting device of claim 2 via a supply system-end plug, the charging cable comprising:

a communications line, capable of electrically conductively connecting the at least two contact elements of the supply system-end plug to a control device of the charging cable, to electrically conductively connect the first temperature sensor to the control device.

26. The charging cable of claim 25, wherein the supply system-end plug includes a second temperature sensor for temperature monitoring purposes, the second temperature sensor being electrically conductively connected to the control device via the communications line.

27. The charging cable of claim 26, wherein the supply system-end plug includes a switch, arranged between the second temperature sensor and the communications line, to bridge the second temperature sensor by opening when a cable extension is connected.

28. The charging cable of claim 25, further comprising:

a housing including, in addition to the control device, the supply system-end plug.