Connection assembly for a traction battery in particular for electric vehicles

Patent metadata

Field	Value
Publication number	US-10651452-B2
Application number	US-201815928696-A
Country	US
Kind code	B2
Filing date	Mar 22, 2018
Priority date	Mar 23, 2017
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A connection assembly for a traction battery comprises a busbar extending in an extension direction and a flexible electrical connection element extending along the busbar in the extension direction. The busbar has a compensation section in which the busbar extends perpendicular with respect to the extension direction.

First claim

What is claimed is:

1. A connection assembly for a traction battery, comprising:
a busbar extending in an extension direction and having a first compensation section in which the busbar extends in a first direction perpendicular with respect to the extension direction; and
a flexible electrical connection element that is a piece separate from the busbar is positioned over the busbar and extends along the busbar in the extension direction, the flexible electrical connection element having a second compensation section in which the flexible electrical connection element extends in the first direction perpendicular with respect to the extension direction, the second compensation section being arranged over and spaced apart from the first compensation section in a direction perpendicular to a plane of the busbar such that the first compensation section is positioned within the second compensation section.

2. The connection assembly of claim 1 , wherein the first compensation section and the second compensation section are disposed next to each other.

3. The connection assembly of claim 1 , wherein an overall compensation section of the connection assembly includes the first compensation section and the second compensation section.

4. The connection assembly of claim 1 , wherein the busbar and the flexible electrical connection element are connected to each other outside of the first compensation section and the second compensation section.

5. The connection assembly of claim 1 , further comprising at least three busbars spaced apart from each other by a pair of gap sections.

6. The connection assembly of claim 5 , wherein the first compensation section of one of the at least three busbars is located between the pair of gap sections.

7. The connection assembly of claim 1 , first comprising a pair of busbars spaced apart by a gap.

8. The connection assembly of claim 7 , wherein the flexible electrical connection element bridges the gap between the pair of busbars.

9. The connection assembly of claim 1 , wherein the first compensation section and/or the second compensation section has at least one curve.

10. The connection assembly of claim 9 , wherein the first compensation section and/or the second compensation section has one 180 degree curve and a pair of 90 degree curves.

11. The connection assembly of claim 1 , wherein the busbar and the flexible electrical connection element each have a substantially rectangular cross-section and a flat side of the busbar faces a flat side of the flexible electrical connection element.

12. The connection assembly of claim 11 , wherein the first compensation section extends perpendicular to the flat side of the busbar.

13. The connection assembly of claim 11 , wherein the second compensation section extends perpendicular to the flat side of the flexible electrical connection element.

14. The connection assembly of claim 7 , further comprising a holding member configured to push down and/or fix a straight section of the flexible electrical connection element.

15. The connection assembly of claim 14 , wherein the holding member is disposed at the gap.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Kioschis Kai
• Toth Gerzson

Classifications

• B60L3/0023 Primary

  Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M2010/4271

  Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing · CPC title

• B60L58/10

  for monitoring or controlling batteries · CPC title

• H01R12/59

  for flexible printed circuits, flat or ribbon cables or like structures · CPC title