CN217170810U

CN217170810U - Automobile tail structure with length easy to adjust

Info

Publication number: CN217170810U
Application number: CN202220366705.5U
Authority: CN
Inventors: 朱娜; 杨茂华; 葛运朋
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-12
Anticipated expiration: 2032-02-23

Abstract

The utility model provides an automobile tail structure of length easy adjustment, including back floor and back panel assembly, back panel assembly includes the cavity structure that extends along the car width direction that comprises back wall planking, back wall inner panel, the bottom salient of back wall planking is in cavity structure and downwardly reach and extend forward, forms the connecting plate that is used for being connected with the back floor, connecting plate and back floor welded fastening. The utility model discloses only utilize the connecting plate that the back wall planking extends out to connect back wall board assembly and back floor, the length of only modifying the connecting plate like this can change car afterbody length, thereby realize the car length change of different motorcycle types, make suitcase X to size and suitcase volume variable, thereby satisfy different markets, different users are to the volumetric special demand of suitcase, and can realize the edge of back floor and back door and use, the application of automobile body structure platformization has been guaranteed, realize the rapid evolution of motorcycle type with less input, derive and the iteration.

Description

Automobile tail structure with length easy to adjust

Technical Field

The utility model belongs to the technical field of the automobile structure, concretely relates to car afterbody structure.

Background

In the whole vehicle development process of a platform project, the length of the whole vehicle of different vehicle types of the same platform is generally different greatly, the tail of the traditional vehicle is formed by connecting a back panel and a floor, when the length of the tail of the vehicle needs to be changed, the floor structure and the back panel structure associated with the floor structure need to be redesigned, the development period is long, and the cost is high. With the increasing competition of the global automobile market, the requirements of automobile enterprises on the cost and expense cycle are higher and higher, and the platform development concept becomes an important measure for complying with the trend. How to reduce the development cost and the development period of the vehicle enterprises is a problem which needs to be solved urgently by engineers.

Disclosure of Invention

The utility model provides a car afterbody structure of length easy adjustment can be applicable to in the different motorcycle types of same platform to change the whole length of car, satisfy the vehicle demand and the product market competitiveness of different customer groups, and reduce car enterprise development cost and cycle.

The utility model discloses an automobile tail structure of length easily adjusting includes back floor and back panel assembly, and the key lies in, back panel assembly includes the cavity structure that extends along the car width direction that comprises back wall planking, back wall inner panel, the bottom salient of back wall planking is in cavity structure and downwardly reach and extend forward, forms the connecting plate that is used for being connected with the back floor, connecting plate and back floor welded fastening.

The hollow cavity structure which is formed by the rear wall outer plate and the rear wall inner plate and extends along the vehicle width direction is a closed section structure during vehicle body design and is used for improving the bending and twisting deformation resistance of a vehicle body, the upper part of the rear wall outer plate is used for being matched with a rear back door, and a curved surface formed by the rear wall outer plate is used for clamping a door opening sealing strip, and the hollow cavity structure belongs to the difficulty of vehicle design. In the automobile tail structure, the requirements of an automobile on different tail lengths can be met only by changing the length and/or the shape of the connecting plate, the most critical automobile rear floor, the upper parts of the hollow cavity structure and the rear wall outer plate are not changed, and the requirements of automobile performance and related matching profiles (such as matching with a rear back door) can be met, so that the development time and the cost can be greatly saved.

Furthermore, the connecting plate is composed of an upper inclined plate and a bottom vertical plate, and the vertical plate is welded and fixed with a vertical flanging at the tail end of the rear floor. Therefore, the hollow cavity structure can be translated (the angle is kept unchanged) only by changing the length of the inclined plate, and the long-term use of the back door is ensured.

Furthermore, the back panel assembly further comprises a back wall left connecting plate and a back wall right connecting plate which are respectively fixed at two ends of the hollow cavity structure, and the back wall left connecting plate and the back wall right connecting plate can be changed only according to different automobile side wall tail structures without changing the hollow cavity structure.

Furthermore, the back panel assembly also comprises a trunk lock catch reinforcing plate arranged on the back panel, and a back upper fixing support and a back security mounting support which are arranged on the back outer panel. Because the length of the tail part of the automobile can be changed only by translating the hollow cavity structure, the angle of the rear wall inner plate can not be changed in the translation process, the angle of the installation surface of the trunk lock can be ensured to be unchanged, and the matching with a back door lock is ensured. Aiming at different rear bumpers, different rear bumper upper fixing brackets and rear bumper mounting brackets can be adopted without modifying the structure of the rear wall outer plate.

The utility model discloses improved the connection structure of back wall assembly and back floor, only utilized the connecting plate that the back wall planking extends out to connect back wall assembly and back floor, only modified the length of connecting plate can change car afterbody length to realize the car length change of different motorcycle types (such as sedan-chair sedan, two-box sedan, CROSS, SUV, MPV, WAGON etc.); the size of the luggage box in the X direction and the volume of the luggage box are variable, so that special requirements of different markets and different users on the volume of the luggage box are met, the follow-up use of a rear floor and a rear back door can be realized, the application of vehicle body structure platformization is guaranteed, and the rapid evolution, derivation and iteration of vehicle types are realized with small investment.

Drawings

Fig. 1 is an overall schematic view of the automobile tail structure of embodiment 1.

Fig. 2 is an exploded view of the automobile tail structure of embodiment 1.

Fig. 3 is a sectional view a-a of fig. 1.

Fig. 4 is a schematic diagram of length adjustment of the automobile tail structure of embodiment 1.

The figures are numbered: 1. a rear floor; 2. a back panel assembly; 21. a rear wall outer plate; 22. a rear wall inner plate; 23. a hollow cavity structure; 24. a rear wall left connecting plate; 25. a rear wall right connecting plate; 26. a trunk latch reinforcing plate; 27. then fixing the bracket; 28. a rear security mounting bracket; 29. a connecting plate; 29A, an inclined plate; 29B, vertical plates.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, and the like.

Example 1:

the embodiment provides an automobile tail structure with easily adjustable length, as shown in fig. 1 to 3, the automobile tail structure includes a rear floor 1 and a rear coaming assembly 2, the rear coaming assembly 2 includes a hollow cavity structure 23 formed by a rear outer plate 21 and a rear inner plate 22 and extending along a vehicle width direction, and further includes a rear left connecting plate 24 and a rear right connecting plate 25 respectively fixed at two ends of the hollow cavity structure 23, a trunk lock catch reinforcing plate 26 mounted on the rear inner plate 22, and a rear upper fixing bracket 27 and a rear security mounting bracket 28 mounted on the rear outer plate 21; the bottom of the rear surrounding outer plate 21 protrudes out of the hollow cavity structure 23 and extends downwards and forwards to form a connecting plate 29 for connecting with the rear floor 1, the connecting plate 29 is composed of an upper inclined plate 29A and a bottom vertical plate 29B, and the vertical plate 29B is welded and fixed with a vertical flanging at the tail end of the rear floor 1.

As shown in fig. 4, in the above automobile tail structure, the tail structure can be lengthened by Δ a1 or shortened by Δ a2 only by lengthening the inclined plate 29A within a certain range, that is, Δ L1 and shortened by Δ L2 (the size of the trunk X and the volume of the trunk are variable), so as to realize the length change of different automobile models (such as three-trunk sedan, two-trunk sedan, CROSS, SUV, MPV, WAGON, etc.), and meet the special requirements of different markets and different users on the volume of the trunk, thereby realizing the rapid evolution, derivation and iteration of automobile models with a small investment. Aiming at different automobile side wall tail structures, only the rear wall left connecting plate 24 and the rear wall right connecting plate 25 can be changed, and the hollow cavity structure 23 does not need to be changed; different rear bumper upper fixing brackets 27 and rear fender brackets 28 may be employed for different rear bumpers without modifying the structure of the rear wall outer panel 21. In the above design modification process, the most critical upper parts of the automobile rear floor 1, the hollow cavity structure 23 and the rear wall outer panel 21 are not changed, and the requirements of automobile performance and related matching profiles (such as matching with a rear back door) can be met, so that the development time and cost can be greatly saved.

The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.

Claims

1. The automobile tail structure with the length easy to adjust comprises a rear floor and a rear coaming assembly and is characterized in that the rear coaming assembly comprises a hollow cavity structure which is formed by a rear coaming outer plate and a rear coaming inner plate and extends along the width direction of a vehicle, the bottom of the rear coaming outer plate protrudes out of the hollow cavity structure and extends downwards and forwards to form a connecting plate used for being connected with the rear floor, and the connecting plate is welded and fixed with the rear floor.

2. The automobile tail structure easy to adjust in length as set forth in claim 1, wherein the connecting plate is composed of an upper inclined plate and a bottom vertical plate, and the vertical plate is welded and fixed to a vertical flange at the rear end of the rear floor.

3. The automobile tail structure easy to adjust in length according to claim 2, wherein the back panel assembly further includes a back left connecting plate and a back right connecting plate fixed to two ends of the hollow cavity structure, respectively.

4. The vehicle tail structure with easy length adjustment according to claim 3, wherein the back panel assembly further comprises a trunk latch reinforcing plate installed on the back panel inner, and a rear upper fixing bracket and a rear mounting bracket installed on the back panel outer.