Automotive floor arrangement

The floor arrangement with bosses and flanges supports a sealing gasket to address airtight sealing challenges in electrified vehicles, ensuring leak-proof battery module housings without compromising mechanical tolerances.

FR3166874A1Active Publication Date: 2026-04-03STELLANTIS AUTO SAS
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Patent Information

Application Number
FR2024010626
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-10-02
Publication Date
2026-04-03
Estimated Expiration
2044-10-02

AI Technical Summary

Technical Problem

Existing floor arrangements in electrified motor vehicles face challenges in ensuring airtight sealing of battery module housings due to gaps between the floor and bearing surfaces, particularly at the front, which are difficult to eliminate without compromising mechanical tolerances.

Method used

A floor arrangement with lateral longitudinal members, cross members, and an upper floor featuring bosses and flanges that support a sealing gasket, allowing it to fill gaps and ensure airtight closure of the battery module housing.

Benefits of technology

The solution effectively seals the battery module housing airtight by reducing gaps and preventing leaks, while maintaining compatibility with automotive industry tolerances and providing an economical, easy-to-implement design.

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Abstract

The invention relates to a floor arrangement (1) for an electrified motor vehicle, the floor arrangement (1) comprising an upper floor (12) which serves as a cover for a housing containing an electric traction battery module for the electrified motor vehicle. The upper floor (12) is supported by side rails (11) and transverse cross members (14). At a front edge, the upper floor (12) rests on the front cross member (14) via flanges (13) extending between a peripheral rim (121) of the upper floor (12) and an internal rebate of the side rails (11).To allow the placement and retention of a sealing gasket (15) under the peripheral edge (121) of the upper floor (12), the inner rebate of the side stringers (11) has a boss (111) extending forward of the corresponding flange (13), the boss (111) being predominantly oriented along the vertical axis (Z). Figure to be published with the abbreviation: Fig. 2.
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