Underbody frame for motor vehicle body

CN119611541APending Publication Date: 2025-03-14BENTELER AUTOMOBILTECHNIK GMBH
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Patent Information

Application Number
CN202411270544.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-14
Filing Date
2024-09-11
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

The existing bottom frame of the motor vehicle is complex and costly in the manufacturing process, and the stiffness and collision performance are insufficient.

Method used

The bottom frame is made of one-piece splicing plates or welded plates, and the cross-sectional shape is formed through press strokes, which increases the wall thickness and tensile strength of the battery carrier connection holes, and reduces the wall thickness and tensile strength in the end area of ​​the cross beam to improve collision performance.

Benefits of technology

The simple and low-cost manufacturing of the bottom frame is realized, while improving the accuracy, stiffness and collision performance of the components, and can reliably support heavy battery carriers and effectively absorb energy in collisions.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN119611541A_ABST
    Figure CN119611541A_ABST
Patent Text Reader

Abstract

The invention relates to an underbody frame (1) for a motor vehicle body, comprising at least one, preferably two, longitudinal members (2) extending in a longitudinal direction (X) of the motor vehicle and at least two transverse members (3) extending in a transverse direction (Y) of the motor vehicle, the transverse members (3) and the longitudinal members (2) being shaped in their cross-sections, according to the invention, the bottom frame (1) is produced from a one-piece splice plate in one press stroke and the bottom frame (1) has connecting holes (5) for the battery carrier, and the crossmember (3) has a lower tensile strength Rm and / or wall thickness in the end region thereof relative to the middle region of the crossmember (3).
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Citation Information

Patent Citations

  • Battery housing

    DE102018211473B3

  • Chassis for a road vehicle with an electrical energy store

    WO2020058037A1