Electric vehicle power distribution module

• US 5,504,655 A
• Filed: 06/10/1994
• Issued: 04/02/1996
• Est. Priority Date: 06/10/1994
• Status: Expired due to Term

• Current Assignee: Northrop Grumman Corporation
• Original Assignee: Westinghouse Electric Company LLC (Brookfield Asset Management Incorporated)
• Inventors: Smith, Brian H., Underwood, Thomas C., DeOms, James H., Zaranski, Todd M.
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US08/258,157
• Time in Patent Office: 662 Days
• Field of Search: 165/185, 165/80.3, 439/911, 123/41.31, 123/480, 123/195 E, 361/601, 361/622, 361/626, 361/641, 361/642, 361/657, 361/658, 361/690, 361/704, 361/707, 361/709, 361/710, 361/816, 361/818, 361/690, 200/50 A, 200/50 B, 307/10.1
• US Class Current: 361/707
• 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: B60L 15/007 Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• CPC Class Codes: B60L 3/00 Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y10S 439/911 Safety, e.g. electrical disconnection required before opening housing

Abstract

An electric vehicle power distribution module including a chassis containing electric power distribution components. A battery connector is disposed on the chassis for electrically connecting the power distribution components to a battery. A safety cover is secured to the chassis and includes an aperature in a side wall for receiving an electric cable from the battery to be selectively engaged with the battery connector. The aperture is positioned with respect to the battery connector so as to preclude removal of the safety cover from the chassis without disengagement of the electric cable from the battery connector.

Claims

1. An electrical vehicle power distribution assembly comprising:

a power distribution chassis containing a first electrical component group;

a second electrical component group external to said power distribution chassis and electrically connected to the first electrical component group;

first cover means for preventing access to the second electrical component group;

a battery connector disposed on said power distribution chassis for selectively engaging an electric cable from a battery; and

second cover means for preventing access to the first electrical component group and including means for precluding removal of the first cover means prior to disengaging the electric cable from the battery connector when said electric cable and said battery connector are engaged.

2. The electric vehicle power distribution assembly according to claim 1, wherein said second cover means comprises a safety cover removably secured to the power distribution chassis.

3. The electric vehicle power distribution assembly according to claim 2, wherein the safety cover includes a hole therethrough for receiving the electric cable, the hole being positioned with respect to the battery connector so as to preclude removal of the safety cover from the power distribution chassis without a prior disengagement of the electric cable from the battery connector.

4. The electric vehicle power distribution assembly according to claim 3, further including at least one fuse disposed on the power distribution chassis and electrically connected to the battery connector, and wherein the safety cover covers said at least one fuse.

5. The electric vehicle power distribution assembly according to claim 2, wherein the power distribution chassis and the second electrical component group are mounted on a cold plate and wherein said first cover means is secured to the cold plate.

6. The electric vehicle power distribution assembly according to claim 5, wherein the first cover means comprises a cover including a peripheral flange secured to the cold plate to form an interface between the first cover means and the cold plate.

7. The electric vehicle power distribution assembly according to claim 6, wherein the safety cover includes an an overhanging flange covering a portion of the peripheral flange of said first cover means to preclude removal of said first cover means prior to removal of said safety cover.

8. The electric vehicle power distribution assembly according to claim 1, wherein the second electrical component group includes at least one capacitor electrically connected to the battery connector, and further comprising means in said first electrical component group for discharging said at least one capacitor upon disengagement of the electric cable.

9. The electric vehicle power distribution assembly according to claim 2, wherein the safety cover and the power distribution chassis are formed of electrically non-conductive material.

10. The electric vehicle power distribution assembly according to claim 1, wherein the first electrical component group comprises components for distributing power from a battery to preselected portions of an electric vehicle.

11. The electric vehicle power distribution assembly according to claim 1, wherein the second electrical component group comprises components for controlling a motor of an electric vehicle.

12. An electric vehicle power distribution assembly comprising:

a chassis containing a power distribution component group;

a battery connector mounted on the chassis for electrically connecting the power distribution component group to a battery; and

a safety cover secured to the chassis, the safety cover including an aperture therethrough for receiving an electric cable from the battery and which engages the battery connector, the aperture being located in a wall of the safety cover so as to preclude removal of the safety cover from the chassis without a prior disengagement of the electric cable from the battery connector when said electric cable engages the battery connector;

a motor controller component group, for powering an electric vehicle, external to said chassis and being electrically connected to the power distribution component group; and

a cover for the motor controller component group and wherein the cover for the motor controller component group is precluded from being removed prior to removal of the safety cover.

13. The electric vehicle power distribution assembly according to claim 12, wherein said chassis, the motor controller component group, and the cover for the motor controller component group are mounted on a cold plate.

14. The electric vehicle power distribution assembly according to claim 13, wherein the cover for the motor controller component group includes a peripheral flange and electro-magnetic interface gasket adjacent said flange for forming an EMI interface between the cover and the cold plate, and further including means for securing the cover and the gasket to the cold plate.

15. The electric vehicle power distribution assembly according to claim 14, wherein the safety cover includes an overhanging flange covering a portion of said peripheral flange and said securing means of the cover for the motor controller component group.

16. The electric vehicle power distribution assembly according to claim 13, further including at least one fuse disposed on said chassis and electrically connected to the battery connector, and wherein the safety cover covers said at least one fuse.

17. The electric vehicle power distribution assembly according to claim 13, wherein the safety cover and the chassis are formed of electrically non-conductive material.

18. The electric vehicle power distribution assembly according to claim 12, wherein the motor controller component group includes at least one capacitor electrically connected to the battery connector, and additionally comprising means connected to the battery connector for discharging said at least one capacitor upon disengagement of the electric cable from the battery connector.