Electric vehicle battery rapid charging connector

• US 6,905,362 B2
• Filed: 07/27/2001
• Issued: 06/14/2005
• Est. Priority Date: 07/28/2000
• Status: Expired due to Term

• Current Assignee: ITT Manufacturing Enterprises, Inc. (ITT, Inc.)
• Original Assignee: ITT Manufacturing Enterprises, Inc. (ITT, Inc.)
• Inventors: Williams, Roger C.
• Primary Examiner(s): TA, THO DAC
• Application Number:
  US09/916,966
• Publication Number:
  US 20020081486A1
• Time in Patent Office: 1,418 Days
• Field of Search: 439/34, 439/488, 439/490, 439/453, 439/374, 439310-319, 439/913, 439/924.1, 439/911, 439/320, 439/372, 439/352
• US Class Current: 439/490
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• 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: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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: Y10S 439/913 Condition determining device, e.g. oxygen sensor, accelerometer, ionizer chamber, thermocouple

Abstract

An apparatus for connection of a rapid charging system to an electric vehicle includes a connector plug that is attached to an electrical cable at one end that is, in turn, connected to a charging system at the remaining end of the cable. The connector plug is adapted to fit into a mating receptacle that is attached to the electric vehicle. A pair of cavities in the connector plug are adapted to receive any combination of modules that include switches, lights, or blank filler plugs. The connector plug is preferably molded from rubber. Various contacts are described having high current, or signal, or pilot functions and which mate with various length pins in the mating receptacle so as to sequence the order in which electrical conductivity is attained. Temperature sensing of the connector and shutdown subsequent to an over-temperature condition is described and allows for the use of smaller sized electrical connectors.

Claims

1. An electric vehicle rapid charging connector, comprising:

(a) a connector plug having a body, said body having a first end and an opposite second end;

(b) means for attaching an electrical cable at said first end of said body, said electrical cable including a plurality of electrical conductors therein;

(c) means for providing a plurality of sockets at said second end of said body, at least two of said plurality of sockets adapted for recharging a battery of said electric vehicle; and

(d) means for providing at least one cavity in said body and including means for determining a temperature of said connector and wherein said means for determining a temperature is adapted to affect a current that is flowing through at least one of said plurality of electrical conductors subsequent to said temperature exceeding a predetermined threshold amount; and

wherein said cavity is adapted to receive a module and wherein said module includes at least one indicator light, said at least one indicator light attached to at least one of said plurality of electrical conductors.

2. The electric vehicle rapid charging connector of claim 1 wherein said module includes at least one switch, said at least one switch attached to at least one of said plurality of electrical conductors.

3. The electric vehicle rapid charging connector of claim 1 wherein said module includes at least one blank, said at least one blank adapted for covering an opening into said at least one cavity.

4. The electric vehicle rapid charging connector of claim 1 wherein said means for determining a temperature includes at least one device selected from the group consisting of resistance temperature detector, thermocouple, and temperature sensing switches.

5. The electric vehicle rapid charging connector of claim 1 wherein said plurality of sockets is adapted to mate electrically with a plurality of pins that are disposed in a receptacle, said receptacle adapted for attachment to said electric vehicle.

6. The electric vehicle rapid charging connector of claim 5 wherein at least one of said plurality of pins is longer than at least one other of said plurality of pins and whereby said at least one of said plurality of pins that is longer is adapted to mate electrically with at least one of said plurality of sockets before at least one other of said plurality of pins is adapted to mate electrically with at least one other of said plurality of sockets.

7. The electric vehicle rapid charging connector of claim 5 wherein said connector is electrically connected to means for monitoring at least one parameter in said electric vehicle when said connector is electrically connected with said receptacle.

8. The electric vehicle rapid charging connector of claim 1 wherein said means for determining a temperature is attached to a first end of said at least one of said plurality of electrical conductors and including means for monitoring said temperature that is attached to a second end of said at least one of said plurality of electrical conductors.

9. The electric vehicle rapid charging connector of claim 8 wherein said means for monitoring is adapted to affect a current that is flowing through said conductor subsequent to said temperature exceeding a predetermined threshold amount.

10. An electric vehicle rapid charging connector, comprising:

(a) a connector plug having a body, said body having a first end and an opposite second end;

(b) means for attaching an electrical cable at said first end of said body, said electrical cable including a plurality of electrical conductors therein;

(c) means for providing a plurality of sockets at said second end of said body, at least two of said plurality of sockets adapted for recharging a battery of said electric vehicle; and

(d) means for determining a temperature in said body and wherein said means for determining a temperature is adapted to affect a current that is flowing through at least one of said plurality of electrical conductors subsequent to said temperature exceeding a predetermined threshold amount; and

wherein said means for determining a temperature in said body is adapted to supply a signal through said electrical cable, said signal being representative of said temperature in said body.

11. The electric vehicle rapid charging connector of claim 10 including control means that is adapted to receive said signal and wherein the flow of a current that is supplied for charging at least one battery in said electric vehicle through said connector is stopped by said control means subsequent to said temperature in said body exceeding a predetermined threshold amount.

12. The electric vehicle rapid charging connector of claim 10 including control means that is adapted to receive said signal and wherein a current that is supplied for charging at least one battery in said electric vehicle through said connector is lessened by said control means subsequent to said temperature in said body exceeding a predetermined threshold level.

13. The electric vehicle rapid charging connector of claim 12 wherein at least two of said sockets are adapted to carry a maximal flow of current for a predetermined limited amount of time and wherein when said maximal flow of current occurring through at least two of said sockets exceeds said predetermined limited amount of time, said temperature in said body rises and wherein if said maximal flow of current continues for a sufficient amount of time said temperature in said body will exceed said threshold level.

14. The electric vehicle rapid charging connector of claim 13 wherein said at least two of said sockets are smaller than would be required to maintain said maximal flow of current through said at least two of said sockets to continue indefinitely.

15. An electric vehicle rapid charging connector, comprising:

(a) a connector plug having a body, said body having a first end and an opposite second end;

(b) means for attaching an electrical cable at said first end of said body, said electrical cable including a plurality of electrical conductors therein;

(c) means for providing a plurality of sockets at said second end of said body, at least two of said plurality of sockets adapted for recharging a battery of said electric vehicle; and

(d) means for providing at least one cavity in said body and including means for determining a temperature of said connector and wherein said means for determining a temperature is adapted to affect a current that is flowing through at least one of said plurality of electrical conductors subsequent to said temperature exceeding a predetermined threshold amount; and

wherein said cavity is adapted to receive a module and wherein said module includes at least one switch, said at least one switch attached to at least one of said plurality of electrical conductors.