Lightweight automobile cover plate structure

By using a car cover structure made of carbon fiber and glass fiber composite materials, combined with the design of aluminum alloy and foam, the problems of heavy engine cover and poor corrosion resistance have been solved, achieving the effects of lightweighting and pedestrian protection.

CN224045281UActive Publication Date: 2026-03-27GUANGDONG YAXIN NON-METALLIC MATERIALS TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Traditional car engine hoods are heavy and have poor corrosion resistance, which affects the lightweight design and pedestrian protection of new energy vehicles.

Method used

The outer panel is made of carbon fiber composite material and the inner panel is made of glass fiber composite material. Combined with foam and aluminum alloy locking assemblies, hinge mounting reinforcement plates and gas spring mounting plates, they form an integrated sandwich structure to enhance rigidity and corrosion resistance.

Benefits of technology

This technology achieves lightweighting of the car cover, improves corrosion resistance, effectively protects pedestrians in the event of a collision, and enhances the overall structural performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a light-weight automobile cover plate structure which comprises an outer plate and an inner plate fixedly connected to the lower end of the outer plate, the outer plate is made of carbon fiber materials, and the inner plate is made of glass fiber materials. A first boss is arranged on the inner plate, a plurality of groups of second bosses are arranged on the first boss at intervals, and the second bosses are fixedly connected with the outer plate; a connecting edge is arranged on the edge of the inner plate and fixedly connected with the outer plate. The novel automobile engine cover not only solves the problems that a traditional automobile engine cover is large in weight and poor in corrosion resistance, but also provides a referential structural bonding and local enhancing scheme for a new energy automobile top cover plate or other parts.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile body, especially a light-weight automobile cover plate structure. BACKGROUND

[0002] The engine cover assembly is a key part and an opening and closing part of the engine compartment of the automobile, needs strong rigidity and strength, and also needs to have the functions of opening, closing and locking. The parts in the engine cover assembly of a general automobile model are manufactured by stamping cold-rolled steel plates or aluminum alloy plates, then are manufactured by welding or edge covering, and are subjected to surface treatment by electrophoresis to meet the requirement of corrosion resistance. Since the structure of the engine cover assembly is relatively complex and many parts are involved, the overall weight of the engine cover assembly manufactured by using metal materials is large, which is not conducive to the lightweight design of the new energy automobile and affects the cruising range of the automobile. Therefore, an engine cover assembly that can meet the lightweight design of the new energy automobile, meet the pedestrian protection collision safety, and solve the problem of corrosion resistance needs to be invented. SUMMARY

[0003] The utility model discloses a light-weight automobile cover plate structure, solve the problem that traditional automobile engine cover is heavy, and the anticorrosion is not good.

[0004] The utility model discloses a light-weight automobile cover plate structure, solve the problem that traditional automobile engine cover is heavy, and the anticorrosion is not good.

[0005] A light-weight automobile cover plate structure, comprising an outer plate, an inner plate fixedly connected to the lower end of the outer plate, the outer plate is made of carbon fiber composite material, and the inner plate is made of glass fiber composite material, a first boss is arranged on the inner plate, a plurality of groups of second bosses are arranged on the first boss at intervals, and the second bosses are fixedly connected to the outer plate, and a connecting edge is arranged at the edge of the inner plate.

[0006] Preferably, in combination with the above-mentioned scheme, the upper end surface of the connecting edge is fixedly connected to the lower end surface of the edge of the outer plate through first foaming glue.

[0007] Preferably, in combination with the above-mentioned scheme, the upper end surface of the second boss is fixedly connected to the lower end surface of the outer plate through second foaming glue.

[0008] Preferably, in combination with the above-mentioned scheme, a lock catch assembly is fixedly connected to the front part of the inner plate, the lock catch assembly is made of aluminum alloy material, and the lock catch assembly is fixedly connected to the inner plate through gluing and riveting.

[0009] Preferably, in combination with the above-mentioned scheme, hinge mounting reinforcing plates are fixedly connected to the left and right sides of the rear part of the inner plate, and the hinge mounting reinforcing plates are made of aluminum alloy material.

[0010] Preferably, in combination with the above scheme, the hinge mounting reinforcing plate is in a U-shaped structure, the upper end of the hinge mounting reinforcing plate is fixedly connected with the outer plate through adhesion, and the lower end of the hinge mounting reinforcing plate is fixedly connected with the inner plate through adhesion.

[0011] Preferably, in combination with the above scheme, the inner plate is fixedly connected with the air spring mounting plate on the left side and the right side close to the middle part, and the air spring mounting plate is made of aluminum alloy.

[0012] Preferably, in combination with the above scheme, the air spring mounting plate is fixedly connected with the inner plate through adhesion.

[0013] Preferably, in combination with the above scheme, the inner plate is provided with a U-shaped sealing strip clamping mounting surface, and a plurality of sealing strip clamping mounting holes are arranged on the sealing strip clamping mounting surface at intervals.

[0014] Preferably, in combination with the above scheme, two groups of buffer block mounting bosses are arranged on the left side and the right side of the front part of the inner plate.

[0015] The utility model discloses a kind of light-weighted automobile cover plate structures, which solve the problems of heavy overall structure and short power battery endurance of new energy light-weighted automobile cover plate structure, and can solve the problem of easy rust of metal cover.

[0016] The utility model will be described in more detail in combination with drawings and examples. DRAWINGS

[0017] Fig. 1 It is a light-weighted automobile cover plate structure structure diagram.

[0018] Fig. 2 It is another direction structure diagram of a light-weighted automobile cover plate structure.

[0019] Fig. 3 It is a part structure explosion drawing of a light-weighted automobile cover plate structure.

[0020] Fig. 4 It is an explosion drawing of a light-weighted automobile cover plate structure. DETAILED DESCRIPTION

[0021] As Figs. 1 to 4The illustrated lightweight automobile cover plate structure includes an outer plate 1, an inner plate 2 fixedly connected to the lower end of the outer plate 1, the outer plate 1 is made of carbon fiber composite material, and the inner plate 2 is made of glass fiber composite material. On the one hand, based on the consideration of material cost, on the other hand, the mechanical performance of glass fiber material is lower than that of carbon fiber composite material in terms of rigidity, which is beneficial to the local weakening design of the cover. The safety protection of the whole vehicle when colliding with pedestrians requires weakening design at the local position of the cover to meet the crushing requirements of the head of the pedestrian, and the weakening design of the cover is used to absorb the impact force in the collision. The inner plate 2 is provided with a first boss 21, a plurality of groups of second bosses 22 are arranged on the first boss 21 at intervals, and the second bosses 22 are fixedly connected with the outer plate 1; the edge of the inner plate 2 is provided with a connecting edge 23, and the connecting edge 23 is fixedly connected with the outer plate 1.

[0022] In order to increase the performance of the cover assembly and absorb the impact force in the collision, the upper end surface of the connecting edge 23 and the lower end surface of the edge of the outer plate 1 are fixedly connected by a first foaming glue 3, and the first foaming glue 3 can adopt EPDM foaming material.

[0023] In order to increase the performance of the cover assembly and absorb the impact force in the collision, the upper end surface of the second boss 22 is fixedly connected with the lower end surface of the outer plate 1 by a second foaming glue 4. The second foaming glue 4 can adopt EPDM foaming material.

[0024] The front part of the inner plate 2 is fixedly connected with a lock catch assembly 5, and the lock catch assembly 5 is made of aluminum alloy material, which is used to maximize the lightweight design and solve the corrosion problem of the cold-rolled steel structure. The lock catch assembly 5 is fixedly connected with the inner plate 2 by gluing and riveting to meet the connection strength. In order to solve the manufacturing error, positioning hole structures can be designed at the corresponding positions of the cover lock catch reinforcing plate and the inner plate 2.

[0025] The left and right sides of the rear part of the inner plate 2 are fixedly connected with hinge mounting reinforcing plates 6, and the hinge mounting reinforcing plates 6 are made of aluminum alloy material. The aluminum alloy material can realize lightweight design and solve the problem of metal corrosion.

[0026] In order to increase the structural rigidity of the hinge mounting reinforcing plate 6, the cross section of the hinge mounting reinforcing plate 6 is in the shape of a few characters, the upper end of the hinge mounting reinforcing plate 6 is fixedly connected with the outer plate 1 by gluing, and the lower end of the hinge mounting reinforcing plate 6 is fixedly connected with the inner plate 2 by gluing. The hinge mounting reinforcing plate 6 has a bonding relationship with the inner plate 2 and the outer plate 1, thereby meeting the performance requirements of the hinge mounting.

[0027] The inner plate 2 is fixedly connected with air spring mounting plates 7 on the left and right sides near the middle part, the air spring mounting plates 7 are made of aluminum alloy material, the aluminum alloy material can realize lightweight design and solve the metal corrosion problem.

[0028] In order to facilitate the installation and fixation of the air spring mounting plates 7, the air spring mounting plates 7 are fixedly connected with the inner plate 2 through adhesion.

[0029] In order to provide mounting points for the sealing strips of the front engine compartment of the automobile, the inner plate 2 is provided with a U-shaped sealing strip clamping mounting surface 24, and a plurality of sealing strip clamping mounting holes 25 are arranged on the sealing strip clamping mounting surface 24 in a spaced manner.

[0030] In order to facilitate the installation of the buffer blocks, two groups of buffer block mounting bosses 26 are arranged on the left and right sides of the front part of the inner plate 2.

[0031] In order to facilitate the installation of the washing liquid nozzle and the washing liquid pipe, two groups of washing liquid nozzle and washing liquid pipe mounting holes 29 are arranged on the rear side of the inner plate 2.

[0032] The inner plate and the outer plate are connected through the air spring mounting plates 7, and the air spring mounting plates 7 are made of aluminum alloy material.

[0033] In the description of the utility model, it should be understood that the terms such as 'up', 'down', 'front', 'back', 'left', 'right', 'bottom', 'inside', 'outside', 'one end', 'one side', 'two ends', 'two sides' and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model, or direct application in other occasions, which all fall within the protection scope of the utility model.

Claims

1. A light-weighted automobile cover plate structure comprising an outer plate (1), an inner plate (2) fixedly connected to the lower end of the outer plate (1), characterized in that, The outer plate (1) is made of carbon fiber material, the inner plate (2) is made of glass fiber material; The first boss (21) is arranged on the inner plate (2), a plurality of groups of second bosses (22) are arranged on the first boss (21) at intervals, and the second bosses (22) are fixedly connected with the outer plate (1); The edge of the inner plate (2) is provided with a connecting edge (23), and the connecting edge (23) is fixedly connected with the outer plate (1).

2. The light-weighted automobile cover structure according to claim 1, characterized by, The upper end surface of the connecting edge (23) is fixedly connected with the lower end surface of the edge of the outer plate (1) through the first foaming glue (3).

3. The light-weighted automobile cover structure according to claim 1, characterized by, The upper end surface of the second boss (22) is fixedly connected with the lower end surface of the outer plate (1) through the second foaming glue (4).

4. The light-weighted automobile cover panel structure according to claim 1, characterized by, The front of the inner plate (2) is fixedly connected with a lock assembly (5), the lock assembly (5) is made of aluminum alloy, and the lock assembly (5) is fixedly connected with the inner plate (2) through gluing and riveting.

5. The light-weighted automobile cover panel structure according to claim 1, characterized by, The left and right sides of the rear of the inner plate (2) are fixedly connected with hinge mounting reinforcing plates (6), and the hinge mounting reinforcing plates (6) are made of aluminum alloy.

6. The light-weighted automobile cover panel structure according to claim 5, characterized by The cross section of the hinge mounting reinforcing plate (6) is a few Chinese character-shaped structures, the upper end of the hinge mounting reinforcing plate (6) is fixedly connected with the outer plate (1) through gluing, and the lower end of the hinge mounting reinforcing plate (6) is fixedly connected with the inner plate (2) through gluing.

7. The light-weighted automobile cover panel structure according to claim 1, characterized by, The left and right sides of the inner plate (2) close to the middle are fixedly connected with air spring mounting plates (7), and the air spring mounting plates (7) are made of aluminum alloy.

8. The light-weighted automobile cover panel structure according to claim 7, characterized by The air spring mounting plate (7) is fixedly connected with the inner plate (2) through gluing.

9. The light-weighted automobile cover panel structure according to claim 1, characterized by, The inner plate (2) is provided with a U-shaped sealing strip clamping mounting surface (24), and a plurality of sealing strip clamping mounting holes (25) are arranged on the sealing strip clamping mounting surface (24) at intervals.

10. The light-weighted automobile cover panel structure according to claim 1, characterized by, The left and right sides of the front of the inner plate (2) are each provided with two groups of buffer block mounting bosses (29).