IP Library › Granted Patent US 9,744,860
Granted Patent B2
US 9,744,860 · App. 14/389,820 · Granted Aug 29, 2017

Electric cut-off safety device

Inventors: Ludovic Colchen (Voisins-le-Bretonneux, FR); Robert Lassartesses (Versailles, FR)
Assignee: RENAULT s.a.s.
B60L3/04H01H85/545H01H85/547H01H2085/0233
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Quick Facts
Patent No.
US 9,744,860
App. No.
14/389,820
Granted
Aug 29, 2017
Kind
B2
Abstract

An electric cut-off safety device for the power circuits of an electric bipolar vehicle is capable of cutting off two poles. An electric vehicle can include such an electric cut-off safety device.

Claims (14)

1. An electric vehicle comprising a power circuit, said circuit comprising a power battery including two half-packs, a connector for connecting the power circuit to an electric motor of said vehicle, and a connection relay for switching the power circuit on or off, the vehicle being characterized in that the power circuit further comprises a bipolar electric cut-off safety device arranged so as to be capable of disconnecting both poles of the power battery.

2. The vehicle as claimed in claim 1 , the device comprising a socket and a removable plug.

3. The vehicle as claimed in claim 2 , wherein said plug further comprises at least one main fuse on at least one of the poles.

4. The vehicle as claimed in claim 3 , wherein said at least one main fuse is a fast-acting fuse.

5. The vehicle as claimed in claim 2 , wherein said plug comprises a lever for locking to and unlocking from the socket, the lever being capable of providing effort reduction.

6. The vehicle as claimed in claim 2 , further comprising a means for testing for the presence of the plug in the socket.

7. The vehicle as claimed in claim 3 , wherein the power circuit further comprises a first secondary fuse, placed near the electric cut-off safety device.

8. The vehicle as claimed in claim 7 , wherein said first secondary fuse is a slow-acting fuse.

9. The vehicle as claimed in claim 7 , wherein said first secondary fuse is placed on a pole not protected by a main fuse.

10. The vehicle as claimed in claim 7 , the power circuit further comprising a second secondary fuse, placed between the two half-packs.

11. The vehicle as claimed in claim 10 , wherein said second secondary fuse is a slow-acting fuse.

12. The vehicle as claimed in claim 1 , wherein the electric cut-off safety device is placed between the power battery and the connector.

13. The vehicle as claimed in claim 1 , wherein the connection relay is of the single-pole type.

14. The electric vehicle as claimed in claim 1 , wherein the connection relay is placed between the two half-packs.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2024
From: RENAULT S.A.S.
To: AMPERE S.A.S.
Reel/Frame 067526/0311 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 3, 2014
From: COLCHEN, LUDOVIC; LASSARTESSES, ROBERT
To: RENAULT S.A.S.
Reel/Frame 033883/0409 →
Priority Claims (1)
FR 12 53052 · Apr 3, 2012 · national
Continuity (1)
Related Publication 20150069835A1 · Mar 12, 2015