A composite long fiber cover for lightweight vehicle bodies

Abstract

This utility model provides a composite long fiber cover plate for lightweight vehicle bodies, belonging to the field of automotive parts, including a protective plate assembly and a heat dissipation assembly. The protective plate assembly includes a long fiber board, which is formed by steam molding continuous long fibers in the surface and core layers using a hot mold. This process ensures the integrity of the fibers and maintains the structural strength of the board. The steam-molded long fiber board has good sound absorption and good toughness, resisting impacts from mud and gravel during driving. Compared to metal protective plates, it significantly reduces structural weight, which is beneficial for lightweight vehicle design requirements. The long fiber board has recessed lugs around its edges, allowing fixing bolts with internal hexagonal grooves to be inserted for easy installation and fixing. Anti-loosening washers on the surface of the fixing bolts prevent loosening and improve the stability of the protective plate installation.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, specifically a composite long fiber cover plate for lightweight car bodies. Background Technology

[0002] Automotive skid plates are protective devices installed on critical parts of a vehicle, such as the chassis and engine compartment. Their core functions are protection, noise reduction, weight reduction, and functional integration. Existing automotive skid plates adopt the following structural types: steel structure, aluminum alloy structure, or aluminum-magnesium alloy structure. Due to the use of metal materials, the vehicle weight increases accordingly, which makes it impossible to meet market demands for overall vehicle weight reduction. Currently, skid plates have been successfully applied in the field of skid plate products, but due to the special properties of the materials, they have not been widely used. Therefore, designing a composite long fiber covering material for automotive lightweighting has broad application prospects. Utility Model Content

[0003] The purpose of this invention is to provide a composite long fiber cover plate for lightweight vehicle bodies to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a composite long fiber cover plate for lightweight vehicle body, including a protective plate assembly and a heat dissipation assembly;

[0005] The protective plate assembly includes a surface layer and a core layer made of continuous long fibers formed by steam molding. The long fiber board has multiple recessed ear holes around its edges. Fixing bolts are inserted into the recessed ear holes. Anti-loosening washers are fitted on the surface of the fixing bolts. The surface of the fixing bolts has an internal hexagonal groove.

[0006] The heat dissipation assembly includes an air inlet hole that penetrates one end of the surface of a long fiberboard, an air outlet hole that is opened at the other end of the surface of the long fiberboard, and a concave heat dissipation cavity that is opened on the back of the long fiberboard. The air inlet hole and the air outlet hole are located inside the heat dissipation cavity. The air inlet hole is designed with a zero angle of attack in the direction of the car's forward movement.

[0007] As a preferred embodiment of this utility model: the surface of the long fiberboard is provided with a through hole, a protective cover is embedded inside the through hole, and a sealing sleeve is connected to the edge of the protective cover.

[0008] As a preferred embodiment of this utility model, the surface of the long fiberboard is also provided with a drainage channel.

[0009] As a preferred embodiment of this utility model: a protective foam ring is attached to the back of the long fiberboard on the outer ring of the heat dissipation cavity.

[0010] As a preferred embodiment of this utility model, the surface edge of the long fiberboard is surrounded by integrally formed reinforcing ribs.

[0011] As a preferred embodiment of this utility model, the surface of the long fiberboard is provided with an indicator arrow to indicate the installation direction.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The protective plate assembly includes a long fiberboard. The long fiberboard is formed by steam molding of continuous long fibers through a hot mold through the surface and core layers, so that the long fiberboard is formed as a whole and the fibers are intact, thereby ensuring the structural strength of the plate. The steam-molded long fiberboard has good sound absorption effect and good toughness to resist the impact of mud and gravel during driving. Compared with the use of metal protective plates, it can greatly reduce the structural weight, which is conducive to the lightweight design requirements of the whole vehicle. The long fiberboard has recessed ear holes around its edges. The fixing bolts with internal hexagonal grooves on the surface are inserted into the recessed ear holes for easy installation and fixing. The anti-loosening gaskets on the surface of the fixing bolts prevent the fixing bolts from loosening and improve the installation stability of the protective plate.

[0014] (2) An air inlet is provided at one end of the surface of the long fiberboard and an air outlet is provided at the other end of the surface. A concave heat dissipation cavity is provided on the back of the long fiberboard, so that the chassis protection part is located in the heat dissipation cavity. When the vehicle is moving, the airflow quickly enters the heat dissipation cavity through the air inlet, which facilitates the heat generated by the protected part to be discharged to the outside through the air outlet. The air inlet is designed with zero angle of attack corresponding to the direction of the car's forward movement. The structure is simple and easy to manufacture, so that the airflow direction is consistent with the incoming flow direction, reducing the risk of separation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing bolt installation structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the composition structure of the long fiberboard of this utility model.

[0019] In the diagram: 1. Protective panel assembly; 101. Surface layer; 102. Core layer; 103. Long fiberboard; 104. Recessed lugs; 105. Fixing bolts; 106. Anti-loosening washers; 107. Socket hexagonal grooves;

[0020] 2. Heat dissipation components; 21. Air inlet; 22. Air outlet; 23. Heat dissipation cavity;

[0021] 3. Through hole; 4. Protective cover; 5. Sealing sleeve; 6. Drainage channel; 7. Protective foam ring; 8. Reinforcing rib; 9. Indicating arrow. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figure 1 , Figure 4 A composite long fiber cover for lightweight vehicle body, comprising: a cover assembly 1 and a heat dissipation assembly 2;

[0024] Please see Figure 1 , Figure 2 , Figure 4 The protective plate assembly 1 includes a surface layer 101 and a core layer 102. The long fiberboard 103 is formed by continuous long fibers through a hot mold steam forming process. Multiple recessed ear holes 104 are opened around the edges of the long fiberboard 103. Fixing bolts 105 are inserted inside the recessed ear holes 104. Anti-loosening washers 106 are sleeved on the surface of the fixing bolts 105. Hexagonal grooves 107 are opened on the surface of the fixing bolts 105.

[0025] In practical use: The protective plate assembly 1 includes a long fiberboard 103. The long fiberboard 103 is formed by continuous long fibers through a hot mold steam forming process using a surface layer 101 and a core layer 102. This process ensures that the long fiberboard 103 is formed as a whole and retains the integrity of the fibers, thereby guaranteeing the structural strength of the plate. The steam-formed long fiberboard 103 has good sound absorption and good toughness, which can resist the impact of mud and gravel during driving. Compared with the use of metal protective plates, it can greatly reduce the structural weight, which is conducive to the lightweight design requirements of the whole vehicle. The long fiberboard 103 has recessed ear holes 104 around its edges. The fixing bolts 105 with internal hexagonal grooves 107 on their surfaces are inserted into the recessed ear holes 104 for easy installation and fixing. The anti-loosening washers 106 on the surface of the fixing bolts 105 prevent the fixing bolts 105 from loosening and improve the installation stability of the protective plate.

[0026] Please see Figure 1 , Figure 3The heat dissipation component 2 includes an air inlet 21 that penetrates one end of the surface of the long fiberboard 103, an air outlet 22 that is opened at the other end of the surface of the long fiberboard 103, and a concave heat dissipation cavity 23 that is opened on the back of the long fiberboard 103. The air inlet 21 and the air outlet 22 are located inside the heat dissipation cavity 23. The air inlet 21 is designed with a zero angle of attack corresponding to the forward direction of the vehicle.

[0027] In practical use: an air inlet 21 is provided at one end of the surface of the long fiberboard 103, and an air outlet 22 is provided at the other end of the surface. A concave heat dissipation cavity 23 is provided on the back of the long fiberboard 103, so that the chassis protection part is located in the heat dissipation cavity 23. When the vehicle is moving, the airflow quickly enters the heat dissipation cavity 23 through the air inlet 21, which facilitates the heat generated by the protected part to be discharged to the outside through the air outlet 22. The air inlet 21 is designed with zero angle of attack corresponding to the direction of the car's forward movement. The structure is simple and easy to manufacture, so that the airflow direction is consistent with the incoming flow direction, reducing the risk of separation.

[0028] Please see Figure 3 The surface of the long fiberboard 103 has through holes 3, and a protective cover 4 is embedded inside the through holes 3. A sealing sleeve 5 is connected to the edge of the protective cover 4.

[0029] In practical use: The surface of the long fiberboard 103 has through holes 3, and a protective cover 4 is embedded inside the through holes 3. The protective cover 4 can be removed for easy maintenance. The edge of the protective cover 4 is connected to a sealing sleeve 5 to ensure the sealing of the connection between the protective cover 4 and the through hole 3.

[0030] Please see Figure 1 , Figure 2 The surface of the long fiberboard 103 is also provided with drainage channels 6.

[0031] In practical use: The surface of the long fiberboard 103 is also provided with a drainage channel 6, which facilitates the discharge of splashing water in rainy or snowy weather.

[0032] Please see Figure 3 The back of the long fiberboard 103 is covered with a protective foam ring 7 on the outer ring of the heat dissipation cavity 23.

[0033] In practical use: A protective foam ring 7 is attached to the outer ring of the heat dissipation cavity 23 on the back of the long fiberboard 103. The protective foam ring 7 can improve the shock and impact resistance of the long fiberboard 103.

[0034] Please see Figure 1 The surface edge of the long fiberboard 103 is surrounded by an integrally formed reinforcing rib 8.

[0035] In practical use: The long fiberboard 103 is surrounded by an integrally formed reinforcing rib 8 around its surface edge to improve the structural strength of the long fiberboard 103.

[0036] Please see Figure 2 The surface of the long fiberboard 103 is provided with an indicator arrow 9 to indicate the installation direction.

[0037] In practical use: The surface of the long fiberboard 103 is provided with indicator arrows 9, which facilitates quick and easy installation.

[0038] The protective plate assembly 1 includes a long fiberboard 103. The long fiberboard 103 is formed by steam molding continuous long fibers through a hot mold using a surface layer 101 and a core layer 102. This allows the long fiberboard 103 to be integrally formed while preserving the integrity of the fibers, thereby ensuring the structural strength of the plate. The steam-molded long fiberboard 103 has good sound absorption and good toughness, which can resist the impact of mud and gravel during driving. Compared with the use of metal protective plates, it can greatly reduce the structural weight, which is conducive to the lightweight design requirements of the whole vehicle. The long fiberboard 103 has recessed ear holes 104 around its edges. The fixing bolts 105 with internal hexagonal grooves 107 on their surfaces are inserted into the recessed ear holes 104 for easy installation and fixing. The anti-loosening washers 106 on the surface of the fixing bolts 105 prevent the fixing bolts 105 from loosening and improve the installation stability of the protective plate.

[0039] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite long fiber sheet for a lightweight vehicle body, characterized by, include: The protective plate assembly (1) includes a long fiberboard (103). The long fiberboard (103) is formed by continuous long fibers through a hot mold steam forming process using a surface layer (101) and a core layer (102). Multiple recessed ear holes (104) are provided around the edges of the long fiberboard (103). Fixing bolts (105) are inserted inside the recessed ear holes (104). Anti-loosening washers (106) are fitted on the surface of the fixing bolts (105). Hexagonal grooves (107) are provided on the surface of the fixing bolts (105). The heat dissipation assembly (2) includes an air inlet (21) that penetrates one end of the surface of a long fiberboard (103), an air outlet (22) that is opened at the other end of the surface of the long fiberboard (103), and a concave heat dissipation cavity (23) that is opened on the back of the long fiberboard (103). The air inlet (21) and the air outlet (22) are located inside the heat dissipation cavity (23). The air inlet (21) is designed with a zero angle of attack corresponding to the forward direction of the vehicle.

2. The long fiber overlay panel of claim 1, wherein: The surface of the long fiberboard (103) has a through hole (3), and a protective cover (4) is embedded inside the through hole (3). The edge of the protective cover (4) is connected to a sealing sleeve (5).

3. The long fiber overlay panel of claim 1, wherein: The surface of the long fiberboard (103) is also provided with drainage channels (6).

4. The long fiber overlay panel of claim 1, wherein: The back of the long fiberboard (103) is attached to the outer ring of the heat dissipation cavity (23) with a protective foam ring (7).

5. The long fiber overlay panel of claim 1, wherein: The surface edge of the long fiberboard (103) is surrounded by integrally formed reinforcing ribs (8).

6. The long fiber overlay panel of claim 1, wherein: The surface of the long fiberboard (103) is provided with an indicator arrow (9) to indicate the installation direction.

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