Battery pack including cell restraint

US11196123B2 · kind B2 · utility

Assignees

• Robert Bosch Battery Systems GmbH · US
• Robert Bosch GmbH · DE

Inventors

• Kecheng Xu · Suzhou, CN
• Alexander Foitzik · Stuttgart, DE
• David Nietling · Metamora, US
• Henrik Wolfgang Behm · Stuttgart, DE
• Klaus Spieske · Stuttgart, DE
• Kyle Schultz · Grafton, US
• Mehul Botadra · Sterling Heights, US
• Rainer Menig · Stuttgart, DE
• Robert Kohler · Stuttgart, DE
• Ruben Jung · Stuttgart, DE
• Sinasi Temiz · Großenhain, DE
• Walter Jasch · Stuttgart, DE
• Martin Kassner · Weil der Stadt, DE

Key dates

• Filing date: Sep 29, 2017
• Grant date: Dec 7, 2021
• Expiry date: Dec 30, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A battery pack (1) includes a housing (2) and an array (40) of electrochemical cells (80) disposed in the housing (2). The housing (2) includes a container (3) and a lid (30) that closes an open end of the container (3). The container (3) has a base (4), a sidewall (8) that surrounds the base (4), and a spring plate (110) disposed inside the side wall (8) between the cells (80) and the sidewall (8). The spring plate (110) is free standing within the container (3) and applies a spring force to the cell array (40) that restrains the cells (80) along an axis normal to the surface of the spring plates (110). The lid (30) includes inwardly-protruding pins (50, 60) that further restrain the cells (80) within the housing (2).