Battery arrangement comprising a positioning element and adaptor plate

Patent metadata

Field	Value
Publication number	US-12444805-B2
Application number	US-202017598724-A
Country	US
Kind code	B2
Filing date	Mar 30, 2020
Priority date	Mar 28, 2019
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

The present invention relates to a battery arrangement, comprising a first battery unit and a second battery unit that is stacked in a stacking direction above the first battery unit, wherein a positioning element that extends in the stacking direction from the first battery unit to the second battery unit is provided for positioning the second battery unit relative to the first battery unit.

First claim

The invention claimed is:

1. A battery arrangement, comprising a first battery unit and a second battery unit that is stacked in a stacking direction above the first battery unit, wherein a positioning element that extends in the stacking direction from the first battery unit to the second battery unit is provided for positioning the second battery unit relative to the first battery unit, wherein the positioning element is configured to be displaced in a plane that extends in the perpendicular direction with respect to the stacking direction, wherein the positioning element is fastened to an adaptor plate that extends in the perpendicular direction with respect to the stacking direction, wherein the adaptor plate is arranged moveable in the plane perpendicular to the stacking direction, and wherein the positioning element extends from the first battery unit through a positioning opening in a base element of the second battery unit in the direction of the second battery unit.

2. The battery arrangement as claimed in claim 1 , wherein the adaptor plate is embodied in order to be able to absorb forces in the stacking direction.

3. The battery arrangement as claimed in claim 1 , wherein the adaptor plate is connected to the first battery unit by way of at least one connecting rail, wherein the at least one connecting rail is embodied in a bend-resistant manner in the stacking direction and is embodied in a flexible manner in the perpendicular direction with respect to the stacking direction.

4. The battery arrangement as claimed in claim 3 , wherein the at least one connecting rail has in the stacking direction a greater area moment of inertia than in the perpendicular direction with respect to the stacking direction, wherein the at least one connecting rail has a cross-section, the length of which is greater in the stacking direction than its width in the perpendicular direction with respect to the stacking direction, and the connecting rail has along its longitudinal extent at least one curvature about a curvature axis essentially parallel to the stacking direction.

5. The battery arrangement as claimed in claim 4 , wherein the connecting rail is embodied as a busbar so as to electrically contact the first battery unit and the adaptor plate.

6. The battery arrangement as claimed in claim 5 , wherein the positioning element comprises a contacting element that has at a first end a first contact area so as to electrically contact the first battery unit and at a second end said positioning element has a second contact area so as to electrically contact the second battery unit, wherein the contacting element is encompassed by an electrically insulating material between the first contact area and the second contact area.

7. The battery arrangement as claimed in claim 6 , wherein the positioning element has an outer cross-sectional profile in the perpendicular direction with respect to the stacking direction, the shape of said profile being configured in such a manner that in addition to guiding the second battery unit in the stacking direction positioning the second battery unit relative to the first battery unit, an angle positioning with regard to an angle that is enclosed by the projections of a longitudinal extent of the first battery unit and a longitudinal extent of the second battery unit onto the plane that extends in the perpendicular direction with respect to the stacking direction, is provided.

8. The battery arrangement as claimed in claim 7 , wherein the positioning element has a shoulder for providing a predetermined distance between the first battery unit and the second battery unit, which is embodied in such a manner that the second battery unit sits on the shoulder.

9. The battery arrangement as claimed in claim 8 , wherein the positioning element has at an end that is facing the second battery unit an insertion section that extends from the second end in a direction towards the first battery unit, wherein the insertion section tapers in a direction towards the end that is facing the second battery unit, wherein the insertion section is embodied at least in part in the shape of at least one of: a frustum of a cone, a frustum of a pyramid, and has at least one chamfer.

10. The battery arrangement as claimed in claim 9 , wherein the adaptor plate is supported in the stacking direction with a side that is facing the first battery unit against the first battery unit.

11. The battery arrangement as claimed in claim 10 , wherein the positioning element is arranged in a displaceable manner in the plane that extends in the perpendicular direction with respect to the stacking direction at least in a first direction at least in a predetermined region and a second direction that extends in an orthogonal manner with respect to the first direction at least in a predetermined region.

12. The battery arrangement as claimed in claim 11 , wherein a plurality of positioning elements is provided, wherein at least two positioning elements are arranged on a common adaptor plate.

13. The battery arrangement as claimed in claim 12 , wherein at least one of: the first battery unit and the second battery unit are accommodated in a common battery housing and the first battery unit and the second battery unit are accommodated in respectively separate battery housings, wherein the battery housings are stacked one above the other.

14. The battery arrangement as claimed in claim 10 , wherein the positioning element is arranged so as to be able to pivot about the stacking direction at least in a predetermined angle range.

15. The battery arrangement as claimed in claim 9 , wherein the adaptor plate is supported in the stacking direction with a side that is facing the first battery unit, against an electrically insulating section of the first battery unit.

16. The battery arrangement as claimed in claim 8 , wherein the base element of the second battery unit sits on the shoulder.

17. The battery arrangement as claimed in claim 4 , wherein the connecting rail is embodied as a busbar so as to electrically contact the first battery unit and a contacting element of the adaptor plate.

18. A battery arrangement, comprising a first battery unit and a second battery unit that is stacked in a stacking direction above the first battery unit, wherein a positioning element that extends in the stacking direction from the first battery unit to the second battery unit is provided for positioning the second battery unit relative to the first battery unit, wherein the positioning element is configured to be displaced in a plane that extends in the perpendicular direction with respect to the stacking direction, wherein the positioning element is fastened to an adaptor plate that extends in the perpendicular direction with respect to the stacking direction, wherein the adaptor plate is arranged moveable in the plane perpendicular to the stacking direction, wherein the adaptor plate is connected to the first battery unit by way of at least one connecting rail, wherein the at least one connecting rail is embodied in a bend-resistant manner in the stacking direction and is embodied in a flexible manner in the perpendicular direction with respect to the stacking direction.

Assignees

• Webasto SE

Inventors

• Schink Michael
• Tofaute Tobias
• Haussmann Jochen

Classifications

• H01M50/503

  characterised by the shape of the interconnectors · CPC title

• H01M50/289

  characterised by spacing elements or positioning means within frames, racks or packs (spacing elements inside cells other than separators, membranes or diaphragms H01M50/471) · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/258 Primary

  Modular batteries; Casings provided with means for assembling · CPC title

• H01M50/242

  adapted for protecting batteries against vibrations, collision impact or swelling · CPC title