CN217260311U

CN217260311U - Automobile front cover and vehicle

Info

Publication number: CN217260311U
Application number: CN202221296392.7U
Authority: CN
Inventors: 黄晓华; 袁桂玲; 高聪
Original assignee: Chongqing Changan New Energy Automobile Technology Co Ltd
Current assignee: Deep Blue Automotive Technology Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-08-23
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses an automobile front cover and vehicle, including planking and inner panel, the planking lid fits on the inner panel and links firmly with the inner panel, planking and inner panel are made by continuous fibers reinforcing combined material, be provided with the foam buffer block between planking and the inner panel. The automobile front cover provided by the invention has the advantages that the light weight is realized, the pedestrian protection performance is enhanced, and the requirement of protecting vehicles and pedestrians is met.

Description

Automobile front cover and vehicle

Technical Field

The utility model relates to a vehicle parts technical field especially relates to an automobile front cover and vehicle.

Background

The automobile front cover is one of important parts of an automobile body, and the traditional automobile front cover is mostly made of steel materials. The steel front cover has the defects of heavy weight, poor corrosion resistance and the like. In order to achieve light weight, an aluminum alloy material is used to replace a steel material. The aluminum alloy front cover can reduce weight by 30% compared with the steel front cover, but has the defects of large difficulty of die technology, long debugging period, high cost and the like.

The carbon fiber composite material has a series of advantages of light weight, high strength, high fracture toughness, corrosion resistance, strong designability, easy molding, good vibration damping performance and the like, and can realize integrated design and reduce the number of parts. The carbon fiber front cover can reduce weight by more than 45% relative to the steel front cover, has better lightweight effect than aluminum alloy materials, and is concerned by new energy automobile fields with higher lightweight requirements. But the carbon fiber composite material has high strength, so that the design of pedestrian protection performance of the carbon fiber front cover is particularly important.

Disclosure of Invention

The utility model aims at providing an automobile front cover and vehicle when realizing the lightweight, strengthen promoting pedestrian's protective properties, satisfy the requirement of vehicle pedestrian protection.

In order to achieve the above object, the utility model provides an automobile front cover, including planking and inner panel, the planking lid fits on the inner panel and links firmly with the inner panel, planking and inner panel are made by continuous fibers reinforced composite, be provided with the foam buffer block between planking and the inner panel.

Further, the middle part of the inner plate is provided with a hollow area, and the foam buffer block is arranged around the hollow area.

Further, the foam buffer block includes first foam buffer block, second foam buffer block and third foam buffer block, first foam buffer block and second foam buffer block set up the left and right sides in the cavity region respectively, the setting of third foam buffer block is in the front side in cavity region.

Furthermore, the edge of the hollow area is provided with a second flanging which protrudes upwards and is used for being bonded with the outer plate, and the second flanging is coated with damping glue.

Furthermore, a plurality of energy absorption gaps communicated with the hollow area are arranged at intervals on the edge of the hollow area.

Further, the foam buffer block is bonded on the inner plate and arranged with the gap of the outer plate.

Further, the outer edge circumference of inner panel is provided with the rubber coating district, the outer edge circumference of planking is equipped with the first turn-ups that is used for with the rubber coating district bonding.

Furthermore, an energy absorption bracket is arranged between the outer plate and the inner plate, a right hinge reinforcement and a left hinge reinforcement are respectively bonded at the left rear end and the right rear end of the inner plate, and the energy absorption bracket is respectively welded on the right hinge reinforcement and the left hinge reinforcement; and the front end of the inner plate is bonded with a lock pin reinforcing piece.

Further, the continuous fiber reinforced composite material comprises matrix resin and continuous fibers, wherein the matrix resin is one or a mixture of more than two of epoxy resin, modified epoxy resin and bismaleimide resin, and the continuous fibers are one or a mixture of more than two of carbon fibers, glass fibers and basalt fibers.

The invention further provides a vehicle comprising the automobile front cover.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses a car front shroud and vehicle, carried out the design of multiple pedestrian protection, can better play the energy-absorbing cushioning effect when colliding to the pedestrian, reduce the injury value to the pedestrian collision, greatly promoted the pedestrian's protective properties of car front shroud; the inner plate and the outer plate of the front cover are made of carbon fiber composite materials, and the weight is reduced by more than 45% compared with that of a steel front cover, so that the maximum weight reduction is realized; when realizing the lightweight, strengthen the structural design who promotes pedestrian's protective properties, satisfy vehicle pedestrian's requirement of protecting.

Drawings

FIG. 1 is a schematic structural view of an outer plate of a front cover of an automobile according to the present invention;

FIG. 2 is a schematic structural view of an inner plate of a front cover of an automobile according to the present invention;

fig. 3 is a schematic diagram of the gluing of the present invention.

In the figure:

1-an outer plate, 11-a first flanging and 12-damping glue; 2-inner plate, 21-gluing area, 22-hollow area, 23-energy absorption gap, 24-second flanging and 25-weight-reducing energy absorption hole; 3-right hinge reinforcement; 4-left hinge reinforcement; 5-an energy-absorbing bracket; 7-a latch reinforcement; 8-foam buffer block, 81-first foam buffer block, 82-second foam buffer block, 83-third foam buffer block.

Detailed Description

The structural features of the components of the present invention will be described in detail below, and if directions (up, down, left, right, front, and rear) are described, the structure shown in fig. 2 is used as a reference for description, but the practical use direction of the present invention is not limited thereto. The following description will further explain embodiments of the present invention with reference to the drawings.

Referring to fig. 1 and 2, the embodiment discloses an automobile front cover, which includes an outer plate 1 and an inner plate 2, wherein the outer plate 1 covers the inner plate 2 and is fixedly connected with the inner plate 2, the outer plate 1 and the inner plate 2 are both made of continuous fiber reinforced composite material, and a foam buffer block 8 is arranged between the outer plate 1 and the inner plate 2. The foam foaming rate 45 of the foam buffer block 8 can play a good role in buffering and protecting pedestrian collision.

In this embodiment, the continuous fiber-reinforced composite material includes a matrix resin and continuous fibers, the matrix resin is one or a mixture of two or more of epoxy resin, modified epoxy resin and bismaleimide resin, and the continuous fibers are one or a mixture of two or more of carbon fibers, glass fibers and basalt fibers.

In this embodiment, a glue coating area 21 is circumferentially arranged on an outer edge of the inner plate 2, and a first flanging 11 for bonding with the glue coating area 21 is circumferentially arranged on an outer edge of the outer plate 1. The width of the glue coating area 21 is 20mm, the glue coating area is used for coating epoxy resin structure glue to be fixedly connected with the outer plate 1, and the appearance effect is good. The radius of the first flanging 11 is not less than 3mm, and the length of the first flanging 11 is parallel and level with the inner plate 2, so that the first flanging mainly plays a role in beauty.

In this embodiment, the inner panel 2 is provided at a central portion thereof with a hollow area 22, and the foam cushion 8 is provided around the hollow area 22.

In this embodiment, the foam cushion 8 includes a first foam cushion 81, a second foam cushion 82, and a third foam cushion 83, the first foam cushion 81 and the second foam cushion 82 are respectively disposed at the left and right sides of the hollow area 22, and the third foam cushion 83 is disposed at the front side of the hollow area 22.

In this embodiment, the edge of the hollow region 22 is provided with a second flange 24 protruding upward and used for bonding with the outer plate 1, and the second flange 24 is coated with the damping rubber 12. The second flanging 24 is bonded with the outer plate, so that the connection stability is enhanced, and the energy absorption and shock absorption effects are achieved.

In this embodiment, a plurality of energy absorption notches 23 are provided at intervals along the edge of the hollow region 22, and are communicated with the hollow region 22.

In the present embodiment, a plurality of weight-reduction energy-absorption holes 25 are provided at intervals at the rear end edge of the inner panel 2. The weight is reduced, and the effect of weakening energy absorption is achieved. The size of the weight-reducing and energy-absorbing holes 25 is 65mm 15 mm.

In this embodiment, the foam cushion 8 is bonded to the inner panel 2 and is disposed in a gap with the outer panel 1. The gap between the foam buffer block 8 and the outer plate 1 is kept for 5 mm. In some embodiments, the gap reservation value may be other values, and is not limited herein. The foam cushion block 8 is bonded to the inner panel 2 by an epoxy structural adhesive.

In this embodiment, an energy absorption bracket 5 is further disposed between the outer plate 1 and the inner plate 2, a right hinge reinforcement 3 and a left hinge reinforcement 4 are respectively bonded to the left rear end and the right rear end of the inner plate 2, and the energy absorption bracket 5 is respectively welded to the right hinge reinforcement 3 and the left hinge reinforcement 4; and a lock pin reinforcing piece 7 is adhered to the front end of the inner plate 2.

The right hinge reinforcement 3, the left hinge reinforcement 4 and the lock pin reinforcement 7 are all bonded with the inner plate 2 by epoxy resin structural adhesive. The energy absorption bracket 5 is made of DC03 steel, the thickness of the material is 1.5mm, a 5mm gap is kept between the energy absorption bracket and the outer plate 1, and the energy absorption bracket mainly plays a role in improving energy absorption during collision. The front shroud lockpin department is strong because of carbon fiber front shroud planking rigidity, so cancel the planking reinforcement of traditional steel front shroud, only remain lockpin reinforcement 7, lockpin reinforcement 7 changes the bonding into by the welding with inner panel 2, lockpin reinforcement 7 of arranging can be littleer than the lockpin reinforcement of traditional steel front shroud, can reduce the face of weld of lockpin reinforcement, play better heavy effect that subtracts, also can reduce pedestrian collision injury value.

In the present embodiment, the layering manner of the outer panel 1 and the inner panel 2 is 45/0/-45/0/45, and the thickness of the material is 1 mm. In some embodiments, the layering mode may be other modes, and the thickness of the material may also be other values, which is not limited herein.

Referring to fig. 3, the cushion rubber 12 has a thickness of 5 mm. The thickness of structural adhesive for adhering the foam buffer block 8 and the structural adhesive for arranging the edge of the inner plate 2 is 1.5 mm. The thickness of the structural adhesive used for bonding the right hinge reinforcement 3, the left hinge reinforcement 4 and the lock pin reinforcement 7 on the inner plate 2 is 0.5 mm. In some embodiments, the thickness of the cushion rubber 12 and the structural rubber at any position above may be set to different thicknesses according to actual operation, and is not limited thereto.

The invention also discloses a vehicle which comprises the automobile front cover.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an automobile front cover, includes planking (1) and inner panel (2), planking (1) covers and closes on inner panel (2) and links firmly with inner panel (2), its characterized in that, planking (1) and inner panel (2) are made by continuous fibers reinforced composite, be provided with foam buffer block (8) between planking (1) and inner panel (2).

2. The automobile front cover according to claim 1, characterized in that a hollow area (22) is provided in the middle of the inner panel (2), and the foam cushion block (8) is provided around the hollow area (22).

3. The automobile front cover according to claim 2, characterized in that the foam cushion block (8) includes a first foam cushion block (81), a second foam cushion block (82), and a third foam cushion block (83), the first foam cushion block (81) and the second foam cushion block (82) are respectively provided on the left and right sides of the hollow area (22), and the third foam cushion block (83) is provided on the front side of the hollow area (22).

4. The automobile front cover according to claim 2 or 3, characterized in that the edge of the hollow area (22) is provided with a second flanging (24) which protrudes upwards and is used for bonding with the outer plate (1), and the second flanging (24) is coated with the shock absorption glue (12).

5. Automobile front cover according to claim 4, characterized in that the edge of the hollow area (22) is provided with a plurality of energy-absorbing notches (23) at intervals, which are communicated with the hollow area (22).

6. The vehicle front cover according to claim 1, 2, 3 or 5, characterized in that the foam cushion block (8) is bonded to the inner panel (2) and is arranged in a gap with the outer panel (1).

7. The automobile front cover according to claim 6, characterized in that a glue coating area (21) is arranged on the outer edge of the inner plate (2) in the circumferential direction, and a first flanging (11) used for being bonded with the glue coating area (21) is arranged on the outer edge of the outer plate (1) in the circumferential direction.

8. The automobile front cover according to claim 1, 2, 3, 5 or 7, characterized in that an energy-absorbing bracket (5) is further arranged between the outer plate (1) and the inner plate (2), a right hinge reinforcement (3) and a left hinge reinforcement (4) are respectively bonded to the left rear end and the right rear end of the inner plate (2), and the energy-absorbing bracket (5) is respectively welded on the right hinge reinforcement (3) and the left hinge reinforcement (4); and a lock pin reinforcing piece (7) is bonded at the front end of the inner plate (2).

9. The automobile front cover according to claim 1, 2, 3, 5 or 7, characterized in that the continuous fiber-reinforced composite material includes a matrix resin that is one or a mixture of two or more of an epoxy resin, a modified epoxy resin and a bismaleimide resin, and continuous fibers that are one or a mixture of two or more of a carbon fiber, a glass fiber and a basalt fiber.

10. A vehicle comprising the automobile front cover according to any one of claims 1 to 9.