Bayerische Motoren Werke Aktiengesellschaft

Paul Eitzenberger

Thomas Hoefler

Martin Moser

Lukas Wittchen

Stefan Haase

A method is provided for producing an energy supply unit for a vehicle having a housing and a stack, realized as a fuel-cell stack, battery stack or capacitor stack, arranged in the housing. The method includes providing the housing, including first and second tie-rod plates and first and second pressure-plate arrangements, wherein each pressure-plate arrangement is fastened to each tie-rod plate, arranging the stack between the two tie-rod plates and between the two pressure-plate arrangements, applying a bracing force to the two pressure-plate arrangements for the purpose of bracing the stack, and fastening at least the first pressure-plate arrangement to both tie-rod plates while the bracing force is being maintained upon the two pressure-plate arrangements. At least one pressure-plate arrangement includes a tolerance compensation system including an end plate securely connected to the tie-rod plates, a contact-pressure plate arranged between the end plate and the stack, and a positioning arrangement.

Method for producing an energy supply unit

A housing is provided for accommodating a stack of fuel cells, batteries or capacitors, including a first half-shell and a second half-shell opposite the first half-shell, a first pressure plate arrangement and a second pressure plate arrangement opposite the first pressure plate arrangement, the stack being accommodated between the two half-shells and between the two pressure plate arrangements, each half-shell gripping each pressure plate arrangement on the outer face thereof.

Growing community of inventors

Frankfurt am Main, Germany

Paul Eitzenberger