High voltage accumulator

US11165108B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Florian EINOEGG · Munich, DE
• Michael HUBER · Helmissenstraat, US
• Jan Feddersen · Munich, DE
• Andreas Ring · Glückstadt, DE
• Marc Ulbrich · Munich, DE

Key dates

• Filing date: Sep 23, 2019
• Grant date: Nov 2, 2021
• Expiry date: Jan 29, 2040

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 high voltage accumulator has a first and second accumulator module, each having at least two electrical accumulator cells and a cooling module through which a coolant or refrigerant flows. The cooling modules of the two accumulator modules are designed identically, completely or at least in the region of the fluid connection points. A supply channel is fluidically connected to a first fluid connection point of the cooling module of the first accumulator module and to a second fluid connection point of the cooling module of the second accumulator module, and a discharge channel is fluidically connected to a second fluid connection point of the cooling module of the first accumulator module and to a first fluid connection point of the cooling module of the second accumulator module, such that coolant or refrigerant flows through the first cooling module in the opposite direction as the second cooling module.