Engine hood and vehicle

Abstract

The utility model provides an engine hood and a vehicle, and belongs to the technical field of vehicles, the engine hood comprises an engine hood inner plate and an engine hood outer plate covering the engine hood inner plate, the middle area of the engine hood inner plate is provided with a through crossed rib structure which is connected in a crossed mode, and the through crossed rib structure comprises at least two first through ribs which are connected in a crossed mode. Two ends of the first through rib respectively extend to two opposite edges of the hood inner plate; the first through ribs abut against the hood outer plate. And the through crossed rib structure forms a crossed torsion-resistant line. According to the engine cover, the rigidity of the inner plate of the engine cover can be improved, the requirement for protecting pedestrians is met, the requirements for torsion resistance and concave resistance of the engine cover are also met, and the safety performance of the engine cover is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and particularly relates to an engine hood and a vehicle provided with the engine hood. Background Art

[0002] The hood is the front body component of the vehicle. It not only serves as the cover of the engine compartment, but also constitutes the front shape of the vehicle together with the front appearance of the vehicle. It is one of the external parts that users and customers can clearly feel and touch. In addition to meeting the requirements of pedestrian protection and vehicle aesthetics, the hood also needs to have a certain degree of rigidity to meet the requirements of dent resistance, sound insulation, heat insulation and light weight in the hood area. The hood is generally composed of three parts: the outer panel, the inner panel and the reinforcement panel. The inner panel and the outer panel are buckled and welded together, and the inner panel and the reinforcement panel are connected by welding points.

[0003] The existing engine hood structure has major problems:

[0004] (1) The outer panel is generally made of aluminum or steel. Due to cost reasons and the requirement to protect pedestrians, the thickness is generally thin. In order to improve the rigidity performance of the hood, a reinforcement structure needs to be set on the inner panel. However, the layout of the reinforcement structure is unreasonable, which not only increases the weight of the hood, but also fails to meet the requirements of the hood rigidity, dent resistance and torsion resistance, resulting in poor driving collision safety performance. Utility Model Content

[0005] The embodiments of the utility model provide an engine hood and a vehicle, aiming to solve the problems of unreasonable layout of the existing engine hood reinforcement structure, poor torsional resistance and collision safety performance.

[0006] In the first aspect, to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a hood inner panel, comprising: a hood inner panel and a hood outer panel covering the hood inner panel, the middle area of ​​the hood inner panel is provided with a cross-connected through cross rib structure, the through cross rib structure comprises at least two cross-connected first through ribs, the two ends of the first through ribs respectively extend to the opposite edges of the hood inner panel; the first through ribs abut against the hood outer panel; the through cross rib structure constitutes a cross anti-torsion circuit.

[0007] In combination with the first aspect, in a feasible manner, the front area of ​​the hood inner panel is also provided with a front reinforcement rib structure, the left and right ends of the front reinforcement rib structure extend to the left and right edges of the hood inner panel, and the front end of the first through rib is connected to the front reinforcement rib structure; the rear area of ​​the hood inner panel is provided with a rear reinforcement rib structure; the front reinforcement rib structure, the rear reinforcement rib structure and the through cross rib structure constitute a closed-loop anti-torsion circuit.

[0008] In combination with the first aspect, in one achievable manner, the front reinforcing rib structure includes front main ribs extending in the left-right direction and grid ribs arranged in a staggered grid shape, wherein the grid ribs are connected to the middle of the front main ribs and to the first through ribs.

[0009] In combination with the first aspect, in one achievable manner, the first through ribs include two first through reinforcement ribs arranged in parallel, and a first connecting rib is provided between the two first through reinforcement ribs.

[0010] In combination with the first aspect, in one feasible manner, first branch reinforcement ribs are provided at both ends of the first through rib, the first branch reinforcement ribs and the first through ribs extend in different directions, and the first branch reinforcement ribs and the first through ribs both extend to the edge of the hood inner panel.

[0011] In combination with the first aspect, in an achievable manner, the through cross rib structure also includes a second through rib cross-connected to the first through rib; wherein the first through rib is arranged along two diagonals of the hood inner panel, and the second through rib extends along the left and right directions of the hood inner panel to two opposite edges of the hood inner panel.

[0012] In combination with the first aspect, in one achievable manner, second branch reinforcement ribs are respectively provided at both ends of the second through rib, and a second connecting rib is provided between the second branch reinforcement rib and an adjacent one of the first branch reinforcement ribs.

[0013] In combination with the first aspect, in a feasible manner, the middle area of ​​the hood inner panel is hollowed out to form a weight-reducing collapse structure, and the weight-reducing collapse structure includes a weight-reducing hole and a reinforcing beam. The reinforcing beam is arranged in the weight-reducing hole and connected to the boundary of the weight-reducing hole. The reinforcing beam includes at least two cross-connected main beams, and the first through ribs are arranged along the main beams; the boundary of the weight-reducing hole is connected to the hood outer panel.

[0014] In combination with the first aspect, in an achievable manner, the reinforcing beam also includes two front oblique beams and two rear oblique beams, the two front oblique beams are located in the front of the weight-reducing hole and are symmetrically distributed along the center axis of the vehicle body, the rear ends of the two front oblique beams are respectively connected to the two main beams, and the front ends are respectively connected to the boundaries of the weight-reducing hole; the two rear oblique beams are located in the rear of the weight-reducing hole and are symmetrically distributed along the center axis of the vehicle body, the front ends of the two rear oblique beams are respectively connected to the two main beams, and the rear ends are respectively connected to the boundaries of the weight-reducing hole.

[0015] Compared with the prior art, the engine hood provided by the utility model has the following beneficial effects: (1) a through cross rib structure which is through and cross-arranged is provided on the hood inner panel, and the formed through ribs have strong integrity and can take into account the different directions of the hood inner panel. From the perspective of force transmission, the through ribs which penetrate the two opposite sides of the hood inner panel can transmit the force in different directions along the through ribs when any part is subjected to external force, especially at the intersection, the external force can be transmitted to another through rib, thereby dispersing the risk of external force concentration, which not only meets the requirements of protecting pedestrians, but also meets the requirements of the hood's anti-dent performance, and greatly improves the safety performance of the hood; (2) the through cross rib structure constitutes a cross anti-torsion circuit, thereby improving the torsional stiffness of the engine hood, and further improving the torsional performance of the hood.

[0016] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising the engine hood described above.

[0017] The vehicle provided by the embodiment of the utility model adopts such an engine hood, so it can take into account pedestrian safety protection, dent resistance and torsion resistance, thereby improving the safety performance of the front part of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the hood inner plate provided by the embodiment of the utility model is schematically shown Figure 1 ;

[0019] Figure 2 The structure of the hood inner plate provided by the embodiment of the utility model is schematically shown Figure 2 ;

[0020] Figure 3 A schematic diagram of the structure of the engine hood anti-torsion circuit provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of a force transmission structure when the front part of an engine hood is hit by a collision provided by an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of a force transmission structure when a side portion of an engine hood is hit by a collision provided by an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the exploded structure of an engine hood provided in an embodiment of the utility model;

[0024] Figure 7 A schematic diagram of the three-dimensional structure of an engine hood provided in an embodiment of the utility model (viewed from above);

[0025] Description of reference numerals:

[0026] 1. Hood inner panel; 11. Front reinforcement rib structure; 111. Front main rib; 112. Grid rib; 12. First through rib; 121. First through reinforcement rib; 122. First connecting rib; 123. First branch reinforcement rib; 13. Second connecting rib; 14. Second through rib; 141. Second branch reinforcement rib; 15. Rear reinforcement rib structure; 151. Third reinforcement rib; 152. Rear main rib; 16. Small collapse hole; 17. Fourth reinforcement rib; 18. Reinforcement beam; 181. Main beam; 182. Front oblique beam; 183. Rear oblique beam; 19. Ring beam; 191. Weakened hole; 2. Hood lock reinforcement plate; 3. Hinge reinforcement plate; 4. Hood outer panel; 5. Cross torsion line; 6. Closed-loop torsion line; 7. Front buffer block; 8. Side buffer block. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the terms "first", "second", etc. are used to distinguish different objects rather than to describe a specific order.

[0029] In the claims, specification and the above drawings of the present utility model, the terms "up" and "down" are the same as the up-down direction of the vehicle body, the terms "front" and "rear" are the same as the front-rear direction of the vehicle body, and the terms "left" and "right" are the same as the left-right direction of the vehicle body. The remaining directional words, unless otherwise clearly defined, such as the use of terms such as "length", "width", "center" and the like to indicate the direction or position relationship are based on the direction and position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so they cannot be understood as limiting the specific protection scope of the present invention.

[0030] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0031] Please also read Figure 1 and Figure 2The hood inner panel provided by the utility model is now described. The hood inner panel comprises: a hood inner panel 1 and a hood outer panel 4 covering the hood inner panel 1. A through cross rib structure is arranged in the middle area of ​​the hood inner panel 1. The through cross rib structure comprises at least two first through ribs 12 that are cross connected. The two ends of the first through rib 12 extend to the two opposite edges of the hood inner panel 1 respectively. The first through rib 12 abuts against the hood outer panel 4. The through cross rib structure constitutes a cross torsion-resistant circuit 5, such as Figure 3 shown.

[0032] The hood inner panel 1 provided by the utility model is provided with a through cross rib structure which is through and cross-arranged on the hood inner panel 1. The through cross ribs formed have strong integrity and can take into account different directions of the hood inner panel 1. From the perspective of force transmission, the through cross rib structure forms a cross anti-torsion circuit 5 which penetrates to the two opposite sides of the hood inner panel 1. When any part of the hood edge is subjected to external force, the force can be transmitted to different directions along the through cross ribs, especially at the intersection, the external force will also be transmitted to another through rib, thereby dispersing the risk of external force concentration, which not only meets the requirements of protecting pedestrians, but also meets the requirements of the hood's anti-dent performance, improves the overall anti-torsion performance, and greatly improves the safety performance of the hood.

[0033] The two ends of the first through ribs 12 extend to the two opposite edges of the hood inner panel 1, respectively. The examples are as follows: Example 1, the two ends of the two first through ribs 12 extend to the front and rear edges of the hood inner panel 1; Example 2, the two ends of the two first through ribs 12 extend to the left and right edges of the hood inner panel 1; Example 3, that is, the present application Figure 1 As mentioned above, the two ends of the two first through ribs 12 extend along the two diagonal lines of the hood inner panel 1 respectively.

[0034] Since the hood inner panel 1 is provided with continuous and upwardly bent flanges around its periphery, the two first through ribs 12 extend to the flanges of the hood inner panel 1, and also support and strengthen the flanges. At the same time, the area of ​​the hood inner panel 1 located inside the flange is concave downward, forming a separation cavity between the hood outer panel 4, which has the effect of sound insulation and noise reduction. At the same time, through the support of the through cross rib structure, the overall torsional resistance of the engine hood can also be improved.

[0035] In some embodiments, see Figures 1 to 3As shown, the front area of ​​the hood inner panel 1 is also provided with a front reinforcement rib structure 11, the left and right ends of the front reinforcement rib structure 11 extend to the left and right edges of the hood inner panel 1, and the front ends of the first through ribs 12 are connected to the front reinforcement rib structure 11; the rear area of ​​the hood inner panel 1 is provided with a rear reinforcement rib structure 15; the front reinforcement rib structure 11, the rear reinforcement rib structure 15 and the through cross rib structure constitute a closed-loop anti-torsion circuit 6. The torsional resistance of this closed-loop torsion-resistant circuit 6 is improved in that the front reinforcement rib structure 11, the rear reinforcement rib structure 15 and the through cross rib structure surround the edges of the hood inner panel 1 and form a connection, so that the force at any position of the edge of the hood inner panel 1 can be limited by other structures, and the force can also be quickly transmitted to other parts along the closed-loop torsion-resistant circuit 6, without causing stress concentration at the stress point and stress concentration in other parts; at the same time, there is also a cross torsion-resistant circuit 5 inside the closed-loop torsion-resistant circuit 6, and the cross torsion-resistant circuit 5 is connected to the closed-loop torsion-resistant circuit 6, which restrain and transmit force to each other, thereby not only taking into account pedestrian safety, but also improving the overall torsion resistance and dent resistance of the hood.

[0036] When the front of the vehicle is hit, Figure 4 As shown, the collision force will be transmitted backward along the front reinforcement rib structure 11 to the through cross rib structure, and transmitted along the cross torsion line 5 and the closed loop torsion line 6; when the vehicle collides with the side, as shown in FIG. Figure 5 As shown, the collision force will be transmitted backward along the front reinforcing rib structure 11 to the through cross rib structure, and transmitted along the cross anti-torsion line 5 and the closed-loop anti-torsion line 6.

[0037] Specifically, the front reinforcing rib structure 11 and the through cross rib structure are connected together on the left and right sides of the hood inner panel 1, forming an interconnected reinforcing rib network structure on the hood inner panel 1, which greatly improves the torsional resistance and dent resistance of the hood inner panel 1.

[0038] In some embodiments, see Figure 1 and Figure 2 As shown, the front reinforcing rib structure 11 includes a front main rib 111 extending in the left-right direction and grid ribs 112 arranged in a staggered grid shape. The grid rib 112 is connected to the middle of the front main rib 111 and is connected to the first through rib 12 .

[0039] The grid rib 112 structure can not only improve the rigidity and torsional resistance of the hood, but also form a force transmission network. When force is applied to any position of the hood inner panel 1, the force can be transmitted along the reinforcing ribs arranged in different directions, thereby improving the pedestrian protection, torsional resistance and dent resistance of the hood.

[0040] Furthermore, the rear reinforcing rib structure 15 includes a rear main rib 152 extending in the left-right direction and a third reinforcing rib 151 connected between the rear main rib 152 and the rear flange of the hood inner panel 1 .

[0041] In some embodiments, Figure 1 and Figure 2 As shown, the first through rib 12 includes two first through reinforcing ribs 121 arranged in parallel, and a first connecting rib 122 is provided between the two first through reinforcing ribs 121. By providing two parallel first through reinforcing ribs 121, the rigidity and dent resistance of the hood inner panel 1 can be further improved, and the number of force transmission channels can be increased. At the same time, the first connecting rib 122 is used to connect the two parallel first through reinforcing ribs 121 together, which can not only improve the rigidity of the hood inner panel 1, but also further improve the diversity of the force transmission channels, thereby greatly improving the safety performance of the hood.

[0042] Furthermore, two first through reinforcing ribs 121 are vertically or obliquely connected at the first connecting rib 122, and a plurality of first connecting ribs 122 are evenly spaced along the length direction of the first through reinforcing rib 121; preferably, the height of the first connecting rib 122 in the up and down direction is flush with the first through reinforcing rib 121.

[0043] Furthermore, vertical connection portions which can be vertically connected to the flange of the hood inner panel 1 are provided at both ends of the first through reinforcing rib 121. Such a structural design provides good support for the flange and improves the anti-dent performance of the flange.

[0044] In some embodiments, Figure 1 As shown, first branch reinforcement ribs 123 are provided at both ends of the first through rib 12. The first branch reinforcement ribs 123 and the first through rib 12 extend in different directions, and the first branch reinforcement ribs 123 and the first through rib 12 both extend to the flanges around the hood inner panel 1. The first branch reinforcement ribs 123 at both ends of the first through rib 12 form a structure similar to a tree branch, which has a reinforcing effect. Because the two crossed first through ribs 12 are far away from each other at the two ends, a blank area is formed at the edge of the hood inner panel 1. Through such a branch structure, the lack of reinforcement structure at the edge is compensated, and the rigidity of the edge of the hood inner panel 1 is improved. At the same time, the force on the hood edge can be transferred to other directions along the first through rib 12 to meet the needs of pedestrian protection, anti-dent performance, etc.

[0045] In some embodiments, Figure 1 As shown, the through cross rib structure also includes a second through rib 14 cross-connected to the first through rib 12; wherein the first through rib 12 is arranged along the two diagonals of the hood inner panel 1, and the second through rib 14 extends along the left and right directions of the hood inner panel 1 to the two opposite edges of the hood inner panel 1.

[0046] The diagonal line of the hood inner panel 1 is explained as follows: Since the outer shape of the hood inner panel 1 is a quadrilateral, specifically, the quadrilateral formed by the four corners of the hood inner panel 1 being connected in sequence is an isosceles trapezoid structure, that is, the front part of the hood inner panel 1 is the upper base of the isosceles trapezoid, and the rear part is the lower base of the isosceles trapezoid, and they are symmetrical along the central axis of the front and rear directions of the vehicle body. Therefore, the diagonal line of the hood inner panel 1 is the line connecting its two non-adjacent vertex corners.

[0047] By setting the second through rib 14, the problem of large blank areas at both ends of the first through rib 12 is further compensated, thereby forming a reinforcement effect on all directions of the hood inner panel 1; and in terms of force transmission effect, more force transmission channels are also formed, further dispersing and reducing the risk of local stress concentration on the hood inner panel 1.

[0048] Optionally, the second through rib 14 extends along the front-rear direction of the hood inner panel 1 to two opposite sides of the hood inner panel 1 .

[0049] Furthermore, the first through reinforcement rib 121, the second through reinforcement rib 14, the first branch reinforcement rib 123 and the second branch reinforcement rib 141 arranged on the hood inner panel 1 are all perpendicular to the hood inner panel 1, and the thickness of these reinforcement ribs is a gradient pattern. The specific gradient pattern is: from the hood inner panel 1 to the hood outer panel 4, the thickness of each reinforcement rib is in a decreasing pattern. Such a design is beneficial to improving the overall stiffness performance of the hood, such as: torsional stiffness, outer panel anti-sag stiffness, etc.; at the same time, it is also beneficial to the overall lightweight of the hood.

[0050] To explain, the thickness measurement of the reinforcement mentioned here is different from the thickness measurement direction of the hood inner panel 1. The thickness of the hood inner panel 1 is measured along the up and down direction, and the thickness of the reinforcement is measured along the cross section perpendicular to the length direction of the reinforcement. The height is measured between the upper end face of the reinforcement and the hood inner panel 1, and the direction perpendicular to its height is the thickness of the reinforcement.

[0051] In some embodiments, Figure 1As shown, the second through rib 14 is provided with second branch reinforcement ribs 141 at both ends, and a second connecting rib 13 is provided between the second branch reinforcement rib 141 and an adjacent first branch reinforcement rib 123. The second branch reinforcement rib 141, the first branch reinforcement rib 123 and the second connecting rib 13 form an A-shaped reinforcement structure. The reason why the second branch reinforcement rib 141, the first branch reinforcement rib 123 and the second connecting rib 13 form an A-shaped reinforcement structure with a reinforcement effect is that: first, the second branch reinforcement rib 141 makes up for the defects of the blank areas at both ends of the second through rib 14, and has a reinforcement effect on the edge of the hood inner panel 1; secondly, the second connecting rib 13 can also reinforce the edge of the hood inner panel 1; thirdly, after the two are connected by the second connecting rib 13, an integrated reinforcement structure is formed at the edge of the hood inner panel 1. At the same time, the force on different branch reinforcement ribs can be quickly transferred to another branch reinforcement rib through the second connecting rib 13, and then transmitted from the end of the second through rib 14, avoiding the risk of force concentration at the intersection due to the force can only be transmitted from the intersection of each through rib to different directions.

[0052] In some embodiments, Figure 1 and Figure 2 As shown, the middle area of ​​the hood inner panel 1 is hollowed out to form a weight-reducing and collapsible structure, which includes a weight-reducing hole and a reinforcing beam 18. The reinforcing beam 18 is arranged in the weight-reducing hole and connected to the boundary of the weight-reducing hole. The reinforcing beam 18 includes at least two cross-connected main beams 181, and the first through ribs 12 are arranged along the main beams 181; the boundary of the weight-reducing hole is connected to the hood outer panel 4. The weight-reducing and collapsible structure can be used to collapse and deform when a vehicle collides to form pedestrian safety protection, and at the same time, the energy absorption effect of the weight-reducing and collapsible structure is used to reduce the collision energy transmitted to the rear side position, thereby forming collision safety protection for the personnel in the cockpit, thereby taking into account both the pedestrian safety protection performance and the collision safety performance of the personnel in the cockpit; at the same time, the design of the weight-reducing hole is also conducive to the lightweight of the hood inner panel 1.

[0053] In some embodiments, Figure 1 and Figure 2 As shown, the reinforcing beam 18 also includes two front oblique beams 182 and two rear oblique beams 183. The two front oblique beams 182 are located in front of the weight-reducing hole and are symmetrically distributed along the center axis of the vehicle body. The rear ends of the two front oblique beams 182 are respectively connected to the two main beams 181, and the front ends are respectively connected to the boundaries of the weight-reducing hole; the two rear oblique beams 183 are located in the rear of the weight-reducing hole and are symmetrically distributed along the center axis of the vehicle body. The front ends of the two rear oblique beams 183 are respectively connected to the two main beams 181, and the rear ends are respectively connected to the boundaries of the weight-reducing hole. The front oblique beams 182 and the rear oblique beams 183 make up for the empty area between the main beams 181, improve the overall torsional rigidity, and also form force transmission lines in different directions, taking into account the needs of collapse and pedestrian protection.

[0054] Specifically, the two front oblique beams 182 form a V shape, and the front ends of the two front oblique beams 182 are connected to the same point of the weight-reducing hole; the two rear oblique beams 183 form a V shape, and the front ends of the two rear oblique beams 183 are connected to the same point of the weight-reducing hole.

[0055] Therefore, the weight-reducing holes are divided by the main beam 181, the front oblique beam 182 and the rear oblique beam 183 to form 10 small collapse holes 16. These small collapse holes 16 are triangular or quadrilateral in shape, and the hood outer panel 4 is connected to the boundaries of each small collapse hole 16 by gluing.

[0056] Furthermore, a ring beam 19 is provided at the boundary of the weight-reducing hole, and weakening holes 191 are dispersedly provided on the ring beam 19, which not only improves the torsion resistance of the hood, but also meets the requirements of protecting pedestrians from collision and collapse. Among them, the main beam 181, the front oblique beam 182 and the rear oblique beam 183 are all connected to the ring beam 19.

[0057] The hinge mounting area, hood lock mounting area, and buffer block mounting area on the hood inner panel 1 ( Figure 1 e) form local thickened areas. The thickness of these areas is higher than that of other areas of the hood inner panel 1. The increase in thickness of these areas is conducive to improving the stiffness of the hinge installation area, the hood lock installation area and the buffer block installation area, and plays a protective role in these key positions with large forces. For example, the thickness of the hood inner panel 1 is 2.2mm, the thickness of the hinge installation area is 4mm, the thickness of the hood lock installation area is 3.5mm, and the thickness of the buffer block installation area is 2.3mm.

[0058] Specifically, a hood lock reinforcement plate 2 is symmetrically arranged in a hood lock installation area at the front of the hood inner panel 1 ; and a hinge reinforcement plate 3 is symmetrically arranged in a hinge installation area at the rear of the hood inner panel 1 .

[0059] Combination Figure 1 and Figure 7 As shown, two side buffer blocks 8 protruding downward are arranged at the front of the hood inner panel 1, and a side buffer block 8 protruding downward is arranged on the left and right sides of the hood inner panel 1, respectively. Fourth reinforcing ribs 17 are arranged around the side buffer blocks 8 on the left and right sides, and the fourth reinforcing ribs 17 are radially divergent to the surroundings to strengthen the position. The front buffer block 7 is located in the front reinforcing rib structure 11, which directly provides structural support for the front buffer block 7. Moreover, since the front buffer block 7 and the side buffer block 8 are both located on the closed-loop torsion-resistant circuit 6, it is possible to avoid local vibration and abnormal noise affecting the NVH performance of the entire vehicle.

[0060] Therefore, the hood inner panel 1 of the present application adopts a structure of local thickness and through-cross reinforcement ribs, which not only strengthens the key areas, but also improves the torsional performance of the hood.

[0061] Optionally, the hood outer panel 4 and the hood inner panel 1 are both made of SMC, and the two are connected by gluing; the hinge reinforcement plate 3 and the hood lock reinforcement plate 2 are both fixed to the hood inner panel 1 by gluing and riveting.

[0062] This engine hood has the following beneficial effects: (1) The inner and outer panels of the hood are made of SMC material, which has high strength and can withstand greater impact force, has good impact resistance, and can meet the hood's dent resistance and rigidity requirements; (2) Compared with conventional hood materials, SMC materials have lower density and lighter weight, which is conducive to the lightweighting of the hood; (3) SMC materials have excellent corrosion resistance and weather resistance, which can ensure the long-term service life of the hood; (4) The inner and outer panels of the hood are connected by gluing, and the hood inner panel 1 and each reinforcement plate are connected by gluing and riveting, eliminating welding points, avoiding the risk of welding point cracking caused by the hood opening and closing process, and is beneficial to the durability of the hood; (5) The present application uses this SMC material to make the hood inner panel 1 and the hood outer panel 4, which can reduce the number of reinforcement plates used compared to conventional hoods and reduce a certain production cost.

[0063] Among them, SMC material is called sheet molding compound (Sheet molding compound), which is a composite material. The main raw materials include unsaturated polyester resin, glass fiber, filler, pigment and other additives.

[0064] The bonding parts of the hood inner panel 1 and the hood outer panel 4 include the bonding along the edges of the hood inner panel 1 and the hood outer panel 4 (see Figure 1 ), glue along each small collapse hole 16 and glue it to the hood outer panel 4 (see Figure 1 The riveting point between the hinge reinforcement plate 3 and the hood inner panel 1 (see Figure 1 c), the riveting point between the hood lock reinforcement plate 2 and the hood inner plate 1 (see Figure 1 (d in the middle).

[0065] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] Based on the same inventive concept, an embodiment of the utility model further provides a vehicle, comprising the engine hood.

[0067] The vehicle provided by the embodiment of the utility model adopts such an engine hood, so that the torsion resistance, dent resistance and pedestrian protection of the front part of the vehicle can be improved, thereby improving the safety performance of the front part of the vehicle.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine hood, characterized in that: include: A hood inner panel (1) and a hood outer panel (4) covering the hood inner panel (1), wherein a cross-connected through-cross rib structure is provided in the middle area of ​​the hood inner panel (1), wherein the through-cross rib structure comprises at least two cross-connected first through-ribs (12), wherein two ends of the first through-rib (12) respectively extend to two opposite edges of the hood inner panel (1); the first through-rib (12) abuts against the hood outer panel (4); and the through-cross rib structure constitutes a cross-torsion-resistant circuit (5).

2. The engine hood according to claim 1, characterized in that: The front area of ​​the hood inner panel (1) is also provided with a front reinforcing rib structure (11), the left and right ends of the front reinforcing rib structure (11) extend to the left and right edges of the hood inner panel (1), and the front ends of the first through ribs (12) are connected to the front reinforcing rib structure (11); the rear area of ​​the hood inner panel (1) is provided with a rear reinforcing rib structure (15); the front reinforcing rib structure (11), the rear reinforcing rib structure (15) and the through cross rib structure constitute a closed-loop anti-torsion circuit (6).

3. The engine hood according to claim 2, characterized in that: The front reinforcing rib structure (11) comprises a front main rib (111) extending in the left-right direction and grid ribs (112) arranged in a staggered grid pattern, wherein the grid rib (112) is connected to the middle of the front main rib (111) and is connected to the first through rib (12).

4. The engine hood according to claim 1, characterized in that: The first through rib (12) comprises two first through reinforcement ribs (121) arranged in parallel, and a first connecting rib (122) is provided between the two first through reinforcement ribs (121).

5. The engine cover according to claim 1, characterized in that: First branch reinforcement ribs (123) are provided at both ends of the first through rib (12); the first branch reinforcement ribs (123) and the first through rib (12) extend in different directions; and the first branch reinforcement ribs (123) and the first through rib (12) both extend to the edge of the hood inner panel (1).

6. The engine hood according to claim 5, characterized in that The through cross rib structure also includes a second through rib (14) cross-connected with the first through rib (12); wherein the first through rib (12) is arranged along two diagonals of the hood inner panel (1), and the second through rib (14) extends along the left and right directions of the hood inner panel (1) to two opposite edges of the hood inner panel (1).

7. The engine cover according to claim 6, characterized in that: Second branch reinforcement ribs (141) are respectively provided at both ends of the second through rib (14), and a second connecting rib (13) is provided between the second branch reinforcement rib (141) and an adjacent first branch reinforcement rib (123).

8. The engine hood according to claim 1, wherein: The middle area of ​​the hood inner panel (1) is hollowed out to form a weight-reducing and collapsible structure, and the weight-reducing and collapsible structure includes a weight-reducing hole and a reinforcing beam (18). The reinforcing beam (18) is arranged in the weight-reducing hole and connected to the boundary of the weight-reducing hole. The reinforcing beam (18) includes at least two cross-connected main beams (181), and the first through rib (12) is arranged along the main beam (181); the boundary of the weight-reducing hole is connected to the hood outer panel (4).

9. The engine cover according to claim 8, characterized in that: The reinforcing beam (18) further comprises two front oblique beams (182) and two rear oblique beams (183), wherein the two front oblique beams (182) are located in the front part of the weight-reducing hole and are symmetrically distributed along the central axis of the vehicle body, and the rear ends of the two front oblique beams (182) are respectively connected to the two main beams (181), and the front ends are respectively connected to the boundaries of the weight-reducing hole; the two rear oblique beams (183) are located in the rear part of the weight-reducing hole and are symmetrically distributed along the central axis of the vehicle body, and the front ends of the two rear oblique beams (183) are respectively connected to the two main beams (181), and the rear ends are respectively connected to the boundaries of the weight-reducing hole.

10. A vehicle, characterized in that: Comprising the engine hood as described in any one of claims 1-9.

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