Power storage device

• US 8,205,700 B2
• Filed: 05/01/2007
• Issued: 06/26/2012
• Est. Priority Date: 05/10/2006
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation), Yazaki Corporation
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation), Yazaki Corporation
• Inventors: Nagata, Shuichi, Oyanagi, Hajime, Adachi, Hideomi
• Primary Examiner(s): Shriver, II, J. Allen
• Assistant Examiner(s): AVERY, BRIDGET D
• Application Number:
  US12/300,285
• Publication Number:
  US 20090178867A1
• Time in Patent Office: 1,883 Days
• Field of Search: 180/68.1, 180/68.5, 180/65.21, 180/65.24, 180/65.1, 180/65.29, 180/65.31
• US Class Current: 180/68.5
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 58/20 having different nominal voltages
• CPC Class Codes: H01M 50/244 Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• 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 90/14 Plug-in electric vehicles
• CPC Class Codes: Y10S 903/907 Electricity storage, e.g. battery, capacitor

Abstract

A power storage device is mounted on a rear portion of a vehicle. The power storage device includes a high-voltage terminal and a low-voltage connector having a lower voltage than the high-voltage terminal. The high-voltage terminal is arranged on a front side in the vehicle. The low-voltage connector is arranged on a rear side in the vehicle.

Claims

1. A power storage device mounted on a rear portion of a vehicle, and comprising:

a power storage device;

a connection unit arranged on a side portion with respect to a longitudinal direction of said power storage device;

a high-voltage connection unit; and

a low-voltage connection unit of a lower voltage than said high-voltage connection unit, wherein

said high-voltage connection unit is arranged on a side surface of said connection unit located on a front side in said vehicle, and

said low-voltage connection unit is arranged on a side surface of said connection unit located on a rear side in said vehicle.

2. The power storage device according to claim 1, wherein

said power storage device is arranged behind a rear seat.

3. The power storage device according to claim 1, wherein

at least a part of the power storage device is arranged in a region between rear wheels.

4. The power storage device according to claim 1, wherein

said high-voltage connection unit is configured to handle the voltage of 60 V or more, and

said low-voltage connection unit is configured to handle the voltage lower than 60 V.

5. The power storage device according to claim 1, wherein

a control unit controlling driving of a hybrid system having a combination of an electric motor and a drive source is connected to said low-voltage connection unit, and a signal line controlling the hybrid system is connected to said low-voltage connection unit.

6. The power storage device according to claim 1, wherein the side surface of said connection unit located on the front side in said vehicle is a side surface of said connection unit that faces the front of the vehicle.

7. The power storage device according to claim 1, wherein the side surface of said connection unit located on the rear side in said vehicle is a side surface of said connection unit that faces the rear of the vehicle.

8. The power storage device according to claim 1, wherein the high-voltage connection unit and the low-voltage connection unit are arranged on opposite sides of the connection unit.

9. The power storage device according to claim 1, wherein the connection unit is arranged on the power storage device.

10. The power storage device according to claim 1, wherein the connection unit is arranged on a casing of the power storage device.

11. A power storage device mounted on a front portion or a middle portion of a vehicle, and comprising:

a power storage device;

a connection unit, located adjacent to and behind said power storage device in said vehicle in a front-rear direction of said vehicle, for outputting to an external destination electric power supplied from said power storage device;

a high-voltage connection unit; and

a low-voltage connection unit of a lower voltage than said high-voltage connection unit, wherein

said high-voltage connection unit is arranged on a side surface of said connection unit located on an inner side in said vehicle, and

said low-voltage connection unit is arranged on a side surface of said connection unit located on an outer side in said vehicle.

12. The power storage device according to claim 11, wherein

said high-voltage connection unit is configured to handle the voltage of 60 V or more, and

said low-voltage connection unit is configured to handle the voltage lower than 60 V.

13. The power storage device according to claim 11, wherein

said power storage device is arranged under a front seat.

14. The power storage device according to claim 11, wherein the side surface of said connection unit located on the inner side in said vehicle is a side surface of said connection unit that faces the inside of the vehicle.

15. The power storage device according to claim 11, wherein the side surface of said connection unit located on the outer side in said vehicle is a side surface of said connection unit that faces the outside of the vehicle.

16. The power storage device according to claim 11, wherein the high-voltage connection unit and the low-voltage connection unit are arranged on opposite sides of the connection unit.

17. The power storage device according to claim 11, wherein the connection unit is arranged on the power storage device.

18. The power storage device according to claim 11, wherein the connection unit is arranged on a casing of the power storage device.