US 12,418,076 B2
Device for making releasable contact with a battery cell
Gerhard Waldschütz, Freistadt (AT); Wolfgang Schmudermaier, Eisgarn (AT); Florian Drexler, Freistadt (AT); and Peter Dobusch, Grünbach (AT)
Appl. No. 17/436,998
Filed by John Deere Electric Powertrain LLC, Moline, IL (US)
PCT Filed Feb. 25, 2020, PCT No. PCT/AT2020/060053
§ 371(c)(1), (2) Date Sep. 7, 2021,
PCT Pub. No. WO2020/181307, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. A 50187/2019 (AT), filed on Mar. 8, 2019.
Prior Publication US 2022/0181753 A1, Jun. 9, 2022
Int. Cl. H01M 50/503 (2021.01); A43B 3/40 (2022.01); H01M 50/213 (2021.01)
CPC H01M 50/503 (2021.01) [A43B 3/40 (2022.01); H01M 50/213 (2021.01)] 13 Claims
OG exemplary drawing
 
1. A device for detachable contact with a battery cell, having said device comprising:
a cell receptacle having an opening facing a joining direction,
said cell receptacle being delimited by a contact spring base from which contact tongues protrude in a direction opposite to the joining direction so as to form a jacket-side enclosure of the battery cell,
wherein the contact tongues have contact bodies providing detachable engagement contact with the battery cell and protruding radially into the cell receptacle;
wherein the surfaces of the contact bodies each have respective surfaces with a contact surface providing electrical contact with the battery cell;
said surfaces of the contact bodies having a shape corresponding to a portion of an ovoid shape that is convex toward the cell receptacle, and wherein the surfaces extend away from the associated contact surfaces, curving away from the battery cell in all directions.