Automobile body reinforcing structure

By designing a high-strength automotive body reinforcement structure, including the front anti-collision beam assembly and the passenger compartment diagonal bracing plate, the problem of insufficient energy absorption and transfer in the front frame structure during small offset collisions in the existing technology has been solved, thereby improving the protection and safety of the passenger compartment.

CN122058992APending Publication Date: 2026-05-19CHERY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHERY AUTOMOBILE CO LTD
Filing Date
2026-02-12
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing automotive front frame structures are unable to effectively absorb and transfer energy during small offset collisions, resulting in large deformation of the passenger compartment and high occupant injury values.

Method used

Design a car body reinforcement structure, including a high-strength cage-like passenger compartment composed of a front anti-collision crossbeam assembly, an energy-absorbing box, wheel arch longitudinal beam connecting beams, and a front longitudinal beam rear section assembly, etc., to absorb and transfer collision energy through orderly deformation, and to set diagonal bracing plates and side reinforcing beams in the passenger compartment to control the amount of deformation.

Benefits of technology

It effectively absorbs and transfers collision energy during small offset collisions, reduces passenger compartment deformation, ensures occupant safety, and improves the vehicle's passive safety performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122058992A_ABST
Patent Text Reader

Abstract

The invention provides an automobile body reinforcing structure which comprises a front anti-collision cross beam assembly, the front anti-collision cross beam assembly comprises a front anti-collision cross beam, the left side and the right side of the front anti-collision cross beam are each fixedly provided with a first energy absorption box and a second energy absorption box, and the first energy absorption boxes and the second energy absorption boxes are both fixedly connected with the front end of a wheel cover longitudinal beam connecting beam. The rear end of the wheel cover longitudinal beam connecting beam is fixedly connected with the wheel cover side beam and the front longitudinal beam; a front longitudinal beam rear section assembly is fixedly connected to the rear part of the front longitudinal beam, is fixedly connected with the front floor lower longitudinal beam, is fixedly connected to the lower part of the dash panel, and comprises a front longitudinal beam rear section; the inner wall of the front longitudinal beam rear section is fixedly connected with a front longitudinal beam rear section reinforcing plate, and the rear portion of the front longitudinal beam rear section is fixedly connected with a doorsill connecting plate. The automobile front frame structure solves the problem that some existing automobile front frame structures are difficult to meet the energy absorption and transmission requirements.
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Claims

1. A vehicle body reinforcement structure, comprising a front anti-collision beam assembly (1), wherein the front anti-collision beam assembly (1) comprises a front anti-collision beam (101), characterized in that, Energy-absorbing boxes 1 (102) and 2 (103) are fixedly installed on both the left and right sides of the front anti-collision crossbeam (101). Energy-absorbing boxes 1 (102) and 2 (103) are fixedly connected to the front end of the wheel cover longitudinal beam connecting beam (2). The rear end of the wheel cover longitudinal beam connecting beam (2) is fixedly connected to the wheel cover side beam (10) and the front longitudinal beam (20). The rear part of the front longitudinal beam (20) is fixedly connected to the rear section assembly (30), the rear section assembly (30) is fixedly connected to the front floor under longitudinal beam (40), the rear section assembly (30) is fixedly connected to the lower part of the front bulkhead (60), the rear section assembly (30) includes the rear section (301) of the front longitudinal beam, the rear section reinforcing plate (302) of the rear section (301) is fixedly connected to the inner wall of the rear section (301), and the rear part of the rear section (301) is fixedly connected to the sill connecting plate (303).

2. The automobile body reinforcement structure according to claim 1, characterized in that, The front part of the rear section (301) of the front longitudinal beam is fixedly connected to the rear part of the front longitudinal beam (20). The rear part of the rear section (301) of the front longitudinal beam is fixedly connected to the sill connecting plate (303). The rear part of the sill connecting plate (303) is fixedly connected to the front part of the front floor under longitudinal beam (40). The side of the sill connecting plate (303) facing outward is fixedly connected to the sill beam (100). The side of the sill connecting plate (303) facing inward is fixedly connected to the center channel connecting plate (304). The center channel connecting plate (304) is fixedly connected to the center channel (90) and the front floor (80).

3. The automobile body reinforcement structure according to claim 1, characterized in that, The wheel cover longitudinal beam connecting beam (2) includes a connecting plate one (201), a connecting plate two (202), and an energy-absorbing box three (203) that are fixedly connected from front to back. The front side of the connecting plate one (201) is fixedly connected to the energy-absorbing box one (102) and the energy-absorbing box two (103), and the rear side of the energy-absorbing box three (203) is fixedly connected to the wheel cover side beam (10) and the front longitudinal beam (20).

4. The automobile body reinforcement structure according to claim 3, characterized in that, A reinforcing inclined plate (204) is fixedly connected to the wheel cover longitudinal beam connecting beam (2). The reinforcing inclined plate (204) forms a triangular reinforcing structure after being fixedly connected to the energy absorption box three (203) and the front longitudinal beam (20).

5. The automobile body reinforcement structure according to claim 1, characterized in that, The wheel arch side beam (10) and the A-pillar assembly (70) are fixedly connected to a front wheel arch reinforcement beam (3). The front part of the front wheel arch reinforcement beam (3) is fixedly connected to the rear part of the wheel arch side beam (10), and the rear part of the front wheel arch reinforcement beam (3) is fixedly connected to the front part of the A-pillar assembly (70).

6. The automobile body reinforcement structure according to claim 1, characterized in that, A wheel cover front end reinforcing plate (4) is provided between the wheel cover side beam (10) and the front longitudinal beam (20). The wheel cover front end reinforcing plate (4) is arranged along the width direction of the vehicle body. The side of the wheel cover front end reinforcing plate (4) facing outward is fixedly connected to the wheel cover side beam (10), and the side of the wheel cover front end reinforcing plate (4) facing inward is fixedly connected to the front longitudinal beam (20). The wheel cover front end reinforcing plate (4) is fixedly connected to the lower part of the wheel cover front end plate (50).

7. The automobile body reinforcement structure according to claim 1, characterized in that, A front panel mounting beam (5) is fixedly connected to the front side of the front panel (60). The left and right sides of the front panel mounting beam (5) are respectively fixedly connected to a set of front longitudinal beams (20). A connecting plate three (6) is also fixedly connected to the front panel mounting beam (5) and the front longitudinal beams (20).

8. The automobile body reinforcement structure according to claim 7, characterized in that, The left and right sides of the front of the passenger compartment are provided with diagonal bracing plates (7). The diagonal bracing plates (7) are fixedly connected to the front bulkhead (60) and the A-pillar assembly (70) and form a triangular reinforcement structure. The front part of the diagonal bracing plate (7) corresponds to the rear part of the front longitudinal beam (20) and the side of the front bulkhead mounting beam (5) facing the vehicle interior.

9. The automobile body reinforcement structure according to claim 1, characterized in that, An upper cover plate (8) is fixedly connected to the upper part of the front bulkhead (60) and the front floor (80). The upper cover plate (8) is arranged along the length direction of the vehicle body and is correspondingly positioned above the rear section assembly of the front longitudinal beam (30) and the lower longitudinal beam of the front floor (40).

10. The automobile body reinforcement structure according to claim 1, characterized in that, Several sets of side reinforcing beams (9) are connected between the sill beam (100) and the front floor under longitudinal beam (40). The side reinforcing beams (9) are arranged along the width direction of the vehicle body. The side of the side reinforcing beam (9) facing outward is fixedly connected to the sill beam (100), and the side of the side reinforcing beam (9) facing inward is fixedly connected to the front floor under longitudinal beam (40). The side reinforcing beams (9) are correspondingly arranged below the seat crossbeam (110).