Carbon fiber automobile engine hood

By setting up a projection and annular recess in the carbon fiber base plate and strengthening the plate in the annular cavity, the problem of insufficient structural strength of the carbon fiber automobile hood is solved, and higher structural strength and connection strength are achieved.

CN223174192UActive Publication Date: 2025-08-01DONGGUAN ACTION COMPOSITES CO LTD
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Patent Information

Application Number
CN202422456726.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-08-01
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

The structural strength of the existing carbon fiber car hood is insufficient, especially when it is easily damaged at the connection between the carbon fiber inner panel and the body.

Method used

A projection is provided in the middle of the carbon fiber base plate, and an annular recess is provided on its outer periphery to form an annular cavity. Front, left, right and rear reinforcement plates are provided in the annular cavity to enhance structural strength, and the connection strength between the mounting surface and the car body is increased through the air outlet assembly.

Benefits of technology

It improves the overall structural strength of the hood, enhances the connection strength between the mounting surface and the car body, and avoids damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carbon fiber automobile engine hood which comprises a carbon fiber bottom plate and a carbon fiber top plate glued to the carbon fiber bottom plate. The middle of the carbon fiber bottom plate is convexly provided with a convex part towards the carbon fiber top plate, the carbon fiber bottom plate is concavely provided with an annular concave part at the periphery of the convex part, the bottom of the annular concave part is provided with a front mounting surface, a left mounting surface, a right mounting surface and a rear mounting surface, and an annular cavity is formed between the top of the annular concave part and the bottom of the carbon fiber top plate; a front reinforcing plate, a left reinforcing plate, a right reinforcing plate and a rear reinforcing plate are glued to the top of the carbon fiber bottom plate, are all located in the annular cavity and correspond to the front mounting face, the left mounting face, the right mounting face and the rear mounting face respectively. The space between the top of the carbon fiber bottom plate and the carbon fiber top plate is reduced through the arrangement of the protruding part, the structural strength of the engine hood is improved through the reinforcing plate, the structural strength of connection between the installation face and the automobile body is further enhanced, and damage is not prone to occurring.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile hoods, in particular to a carbon fiber automobile hood. Background Art

[0002] As an important component for protecting an automobile engine, the automobile hood plays many important roles: 1. During the driving of the vehicle, it can adjust the flow direction of air relative to the movement of the automobile and the resistance force generated on the vehicle, effectively reducing wind resistance and improving the driving stability of the automobile; 2. Protect the components in the engine compartment, prevent adverse effects such as impact, corrosion, rain, and electrical interference, and fully protect the normal operation of the vehicle; 3. The vehicle appearance design is an intuitive manifestation of the vehicle value. As an important part of the overall appearance, the hood plays a crucial role, being pleasing to the eye and reflecting the concept of the overall automobile.

[0003] In the prior art, in order to reduce the weight of the hood, there is a hood made of carbon fiber material, which includes a carbon fiber inner plate for installation at the front of the vehicle and a carbon fiber outer plate glued to the outside of the carbon fiber inner plate. The carbon fiber inner plate is provided with an installation part for cooperating with the vehicle body, so that a large-area cavity will be formed between the top of the carbon fiber inner plate and the carbon fiber outer plate. The cavity will affect the overall structural strength of the hood, and further cause the connection between the carbon fiber inner plate and the vehicle body to be easily damaged.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Content of the Utility Model

[0005] In view of this, in view of the deficiencies existing in the prior art, the main purpose of the present utility model is to provide a carbon fiber automobile hood, in which a convex part protrudes from the middle of the carbon fiber bottom plate towards the carbon fiber top plate, and an annular concave part is recessed on the outer periphery of the convex part of the carbon fiber bottom plate. The setting of the convex part reduces the space between the top of the carbon fiber bottom plate and the carbon fiber top plate, forms an annular cavity, and front strengthening plates, left strengthening plates, right strengthening plates, and rear strengthening plates corresponding to the front installation surface, left installation surface, right installation surface, and rear installation surface are arranged in the annular cavity, improving the structural strength of the hood, and at the same time further enhancing the structural strength of the connection between the installation surface and the automobile body, and being not easily damaged.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A carbon fiber automobile hood includes a carbon fiber bottom plate and a carbon fiber top plate glued to the top of the carbon fiber bottom plate;

[0008] The middle part of the carbon fiber bottom plate protrudes towards the carbon fiber top plate to form a protruding part. An annular concave part is recessed on the outer periphery of the protruding part of the carbon fiber bottom plate. The bottom of the annular concave part is provided with a front mounting surface, a left mounting surface, a right mounting surface and a rear mounting surface. An annular cavity is formed between the top of the annular concave part and the bottom of the carbon fiber top plate. A front reinforcing plate, a left reinforcing plate, a right reinforcing plate and a rear reinforcing plate are glued to the top of the carbon fiber bottom plate. The front reinforcing plate, the left reinforcing plate, the right reinforcing plate and the rear reinforcing plate are all located in the annular cavity and are respectively arranged corresponding to the front mounting surface, the left mounting surface, the right mounting surface and the rear mounting surface.

[0009] As a preferred solution, the protruding part is provided with a main mounting opening and two side mounting openings symmetrically arranged on both sides of the main mounting opening. The carbon fiber top plate is provided with avoidance openings corresponding to the main mounting opening and the side mounting openings. A main air outlet assembly is fixed from bottom to top in the main mounting opening, and a side air outlet assembly is fixed from bottom to top in the side mounting openings. The main air outlet assembly and the side air outlet assembly both protrude into the corresponding avoidance openings.

[0010] As a preferred solution, both the main air outlet assembly and the side air outlet assembly include an air outlet plate and a fixing plate for fixing the air outlet plate. Mounting parts are provided beside the main mounting opening, beside the side mounting opening, on the air outlet plate and on the fixing plate. The fixing plate fixes the air outlet plate on the carbon fiber bottom plate by screws passing through the mounting parts.

[0011] As a preferred solution, the length dimension of the front reinforcing plate in the left-right direction is greater than the length dimension of the protruding part in the left-right direction.

[0012] As a preferred solution, there are two rear reinforcing plates that are symmetric left and right. The two rear reinforcing plates are arranged at intervals and the ends away from each other respectively extend beyond the two ends of the protruding part in the left-right direction.

[0013] As a preferred solution, both the front reinforcing plate and the rear reinforcing plate are provided with convex parts protruding towards the carbon fiber top plate.

[0014] As a preferred solution, an auxiliary reinforcing plate is arranged below the convex part of the front reinforcing plate. The auxiliary reinforcing plate is glued in the annular concave part.

[0015] As a preferred solution, both the carbon fiber top plate and the carbon fiber bottom plate are in an arc shape that bends backward and upward.

[0016] As a preferred solution, the front reinforcing plate, the left reinforcing plate, the right reinforcing plate and the rear reinforcing plate are all made of carbon fiber.

[0017] As a preferred solution, the carbon fiber bottom plate, the carbon fiber top plate and the front reinforcing plate are all formed by vacuum molding, and the left reinforcing plate, the right reinforcing plate and the rear reinforcing plate are all formed by compression molding.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0019] Mainly, a raised portion is provided in the middle of the carbon fiber bottom plate toward the carbon fiber top plate, and an annular recess is provided on the outer periphery of the raised portion. The setting of the raised portion reduces the space between the top of the carbon fiber bottom plate and the carbon fiber top plate, forming an annular cavity, and a front reinforcing plate, a left reinforcing plate, a right reinforcing plate and a rear reinforcing plate corresponding to the front mounting surface, the left mounting surface, the right mounting surface and the rear mounting surface are provided in the annular cavity, thereby improving the structural strength of the hood and further enhancing the structural strength of the connection between the mounting surface and the car body, making it less susceptible to damage.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram from another perspective of a preferred embodiment of the present utility model;

[0023] Figure 3 This is an exploded schematic diagram of a preferred embodiment of the present utility model;

[0024] Figure 4 This is an exploded schematic diagram of another preferred embodiment of the present invention;

[0025] Figure 5 This is another exploded schematic diagram of a preferred embodiment of the present utility model;

[0026] Figure 6 It is a cross-sectional view of a preferred embodiment of the present utility model;

[0027] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle;

[0028] Figure 8 This is a schematic diagram of the assembly of a carbon fiber base plate according to a preferred embodiment of the present invention.

[0029] Description of the accompanying drawings:

[0030] 10. Carbon fiber bottom plate 11. Front reinforcement plate

[0031] 12. Left reinforcement plate 13. Right reinforcement plate

[0032] 14. Rear reinforcement plate 15. Main air inlet assembly

[0033] 16. Side air outlet assembly 17. Air outlet plate

[0034] 18. Fixed plate 19. Installation part

[0035] 101. Protruding part 102. Annular concave part

[0036] 103. Front installation surface 104. Left installation surface

[0037] 105. Right installation surface 106. Rear installation surface

[0038] 107. Main installation port 108. Side installation port

[0039] 109. Convex part 20. Carbon fiber top plate

[0040] 201. Avoidance port 30. Annular cavity

[0041] 40. Auxiliary reinforcement plate 50. Inclined plate

[0042] 60. Extension plate. Detailed implementation mode

[0043] First of all, it should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] Please refer to Figures 1 to 8 As shown, it shows the specific structure of the preferred embodiment of the present utility model, including a carbon fiber bottom plate 10 and a carbon fiber top plate 20 glued to the top of the carbon fiber bottom plate 10.

[0045] A protruding part 101 protrudes from the middle of the carbon fiber bottom plate 10 towards the carbon fiber top plate 20. An annular concave part 102 is recessed on the outer periphery of the protruding part 101 of the carbon fiber bottom plate 10. The bottom of the annular concave part 102 is provided with a front installation surface 103, a left installation surface 104, a right installation surface 105 and a rear installation surface 106. An annular cavity 30 is formed between the top of the annular concave part 102 and the bottom of the carbon fiber top plate 20. A front reinforcement plate 11, a left reinforcement plate 12, a right reinforcement plate 13 and a rear reinforcement plate 14 are glued to the top of the carbon fiber bottom plate 10. The front reinforcement plate 11, the left reinforcement plate 12, the right reinforcement plate 13 and the rear reinforcement plate 14 are all located in the annular cavity 30 and are respectively arranged corresponding to the front installation surface 103, the left installation surface 104, the right installation surface 105 and the rear installation surface 106.

[0046] Refer toFigures 3 to 5 As shown, the convex portion 101 is provided with a main installation opening 107 and two side installation openings 108 symmetrically arranged on both sides of the main installation opening 107. The carbon fiber top plate 20 is provided with avoidance openings 201 corresponding to the main installation opening 107 and the side installation openings 108. A main air outlet assembly 15 is fixed upward from the bottom in the main installation opening 107, and a side air outlet assembly 16 is fixed upward from the bottom in the side installation opening 108. Both the main air outlet assembly 15 and the side air outlet assembly 16 protrude into the corresponding avoidance openings 201;

[0047] Specifically, both the main air outlet assembly 15 and the side air outlet assembly 16 include an air outlet plate 17 and a fixing plate 18 for fixing the air outlet plate 17. Installation portions 19 are provided beside the main installation opening 107, beside the side installation opening 108, on the air outlet plate 17, and on the fixing plate 18. The fixing plate 18 fixes the air outlet plate 17 on the carbon fiber bottom plate 10 by screws passing through the installation portions 19. The air outlet plate 17 is provided with a plurality of partitions arranged at intervals. The partitions are arranged obliquely upward and backward, and air outlets are formed between adjacent partitions.

[0048] Refer to Figure 3 and Figure 8 As shown, the length dimension of the front reinforcing plate 11 in the left - right direction is greater than the length dimension of the convex portion 101 in the left - right direction. There are two rear reinforcing plates 14 that are symmetric in the left - right direction. The two rear reinforcing plates 14 are arranged at intervals, and the ends away from each other respectively extend beyond the two ends of the convex portion 101 in the left - right direction. The length dimensions of the left reinforcing plate 12 and the right reinforcing plate 13 in the front - rear direction are both smaller than the length dimension of the convex portion 101 in the front - rear direction.

[0049] Specifically, refer to Figure 3 and Figure 7 As shown, both the front reinforcing plate 11 and the rear reinforcing plate 14 are provided with convex portions 109 protruding towards the carbon fiber top plate 20. An auxiliary reinforcing plate 40 is arranged below the convex portion 109 of the front reinforcing plate 11, and the auxiliary reinforcing plate 40 is glued in the annular concave portion 102;

[0050] The edges of the main installation opening 107, the side installation opening 108, and the avoidance opening 201 are all provided with inclined plates 50 extending downward. The end of the inclined plate 50 of the avoidance opening 201 extends towards the carbon fiber bottom plate 10 with an extension plate 60. The inclined plates 50 of the main installation opening 107 and the side installation opening 108 are both located on the outer periphery of the extension plate 60.

[0051] Refer to Figure 6As shown, in the front-back direction, both the carbon fiber top plate 20 and the carbon fiber bottom plate 10 are in an arc shape that bends backward and upward. In the left-right direction, the carbon fiber top plate 20 and the carbon fiber bottom plate 10 are arranged symmetrically left and right. Moreover, the carbon fiber bottom plate 10 is in an upward-arching arc shape. The front reinforcement plate 11 is arranged symmetrically left and right, and the left reinforcement plate 12 and the right reinforcement plate 13 are arranged symmetrically left and right.

[0052] In this embodiment, the front reinforcement plate 11, the left reinforcement plate 12, the right reinforcement plate 13, the rear reinforcement plate 14, and the auxiliary reinforcement plate 40 are all made of carbon fiber. The carbon fiber material has a certain degree of flexibility. Under bumps, the carbon fiber top plate 20 will be restricted by the convex portion 101 and the convex part 109 to avoid excessive collapse. The carbon fiber bottom plate 10, the carbon fiber top plate 20, and the front reinforcement plate 11 are all formed by vacuum molding. The left reinforcement plate 12, the right reinforcement plate 13, the rear reinforcement plate 14, the auxiliary reinforcement plate 40, the main air inlet component 15, and the side air inlet component 16 are all formed by compression molding.

[0053] The design focus of the present utility model lies in:

[0054] Specifically, a convex portion protrudes from the middle of the carbon fiber bottom plate towards the carbon fiber top plate. An annular concave portion is recessed on the outer periphery of the convex portion of the carbon fiber bottom plate. The setting of the convex portion reduces the space between the top of the carbon fiber bottom plate and the carbon fiber top plate, forming an annular cavity. And a front reinforcement plate, a left reinforcement plate, a right reinforcement plate, and a rear reinforcement plate corresponding to the front mounting surface, the left mounting surface, the right mounting surface, and the rear mounting surface are arranged in the annular cavity, which improves the structural strength of the engine hood. At the same time, it can further enhance the structural strength of the connection between the mounting surface and the vehicle body and is not easily damaged.

[0055] The above is only a preferred embodiment of the present utility model, and it does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A carbon fiber automotive engine hood, comprising a carbon fiber bottom plate and a carbon fiber top plate glued to the top of the carbon fiber bottom plate; characterized in that: A convex portion protrudes from the middle of the carbon fiber bottom plate toward the carbon fiber top plate. An annular concave portion is recessed on the outer periphery of the convex portion of the carbon fiber bottom plate. The bottom of the annular concave portion is provided with a front mounting surface, a left mounting surface, a right mounting surface, and a rear mounting surface. An annular cavity is formed between the top of the annular concave portion and the bottom of the carbon fiber top plate. A front reinforcing plate, a left reinforcing plate, a right reinforcing plate, and a rear reinforcing plate are glued to the top of the carbon fiber bottom plate. The front reinforcing plate, the left reinforcing plate, the right reinforcing plate, and the rear reinforcing plate are all located in the annular cavity and are respectively arranged corresponding to the front mounting surface, the left mounting surface, the right mounting surface, and the rear mounting surface.

2. A carbon fiber automotive engine hood according to claim 1, characterized in that: A main mounting opening and two side mounting openings symmetrically arranged on both sides of the main mounting opening are formed in the convex portion. The carbon fiber top plate is provided with avoidance openings corresponding to the main mounting opening and the side mounting openings. A main air outlet assembly is fixed from bottom to top in the main mounting opening, and a side air outlet assembly is fixed from bottom to top in the side mounting openings. The main air outlet assembly and the side air outlet assembly both protrude into the corresponding avoidance openings.

3. The carbon fiber automobile hood according to claim 2, wherein: Both the main air outlet assembly and the side air outlet assembly include an air outlet plate and a fixing plate for fixing the air outlet plate. Mounting portions are provided beside the main mounting opening, beside the side mounting opening, on the air outlet plate, and on the fixing plate. The fixing plate fixes the air outlet plate on the carbon fiber bottom plate by screwing through the mounting portions.

4. A carbon fiber automotive engine hood according to claim 1, characterized in that: The length dimension of the front reinforcing plate in the left-right direction is greater than the length dimension of the convex portion in the left-right direction.

5. A carbon fiber automotive engine hood according to claim 4, characterized in that: There are two rear reinforcing plates that are symmetric in the left-right direction. The two rear reinforcing plates are arranged at intervals and the ends away from each other respectively extend beyond the two ends of the convex portion in the left-right direction.

6. The carbon fiber automotive hood according to claim 1, wherein: Both the front reinforcing plate and the rear reinforcing plate are provided with convex portions protruding toward the carbon fiber top plate.

7. A carbon fiber automotive engine hood according to claim 6, characterized in that: An auxiliary reinforcing plate is provided below the convex portion of the front reinforcing plate. The auxiliary reinforcing plate is glued in the annular concave portion.

8. A carbon fiber automotive hood according to claim 1, wherein: Both the carbon fiber top plate and the carbon fiber bottom plate are in an arc shape that bends backward and upward.

9. A carbon fiber automobile hood according to claim 1, characterized in that: The front reinforcing plate, the left reinforcing plate, the right reinforcing plate, and the rear reinforcing plate are all made of carbon fiber.

10. A carbon fiber automotive hood according to claim 9, characterized in that: The carbon fiber bottom plate, the carbon fiber top plate, and the front reinforcing plate are all formed by vacuum molding, and the left reinforcing plate, the right reinforcing plate, and the rear reinforcing plate are all formed by compression molding.