Engine cover inner plate structure, engine cover assembly and vehicle

Abstract

The invention relates to an engine cover inner plate structure, an engine cover assembly and a vehicle, the engine cover inner plate structure comprises an inner plate body, the inner plate body comprises a first weakening area and a second weakening area which are arranged in a spaced mode in the front-back direction, and a first supporting area and a second supporting area which are located in the left-right direction of the first weakening area and the second weakening area. The first weakening area and the second weakening area enable the engine cover assembly to deform more easily after the engine cover assembly collides with pedestrians, so that energy generated during collision is absorbed, and damage of the engine cover assembly to the pedestrians is reduced; besides, the first weakening area and the second weakening area are arranged in the front-back direction of the inner plate body, the proportion of the weakening areas on the inner plate body is increased, and therefore the probability that the collision portion of a pedestrian is located in the weakening areas of the inner plate body when the pedestrian collides with the engine cover assembly is increased; therefore, the engine cover inner plate structure can still have a good pedestrian protection effect in different collision scenes.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle hood technology, specifically to a hood inner panel structure, a hood assembly, and a vehicle. Background Technology

[0002] The hood, or engine hood, is located at the front of the vehicle. In addition to meeting its own strength and modal requirements, the hood also needs to provide protection for pedestrians. Currently, vehicle hoods are strong enough that they are not easily deformed after a collision with a pedestrian, thus failing to guarantee the protection of pedestrians. Summary of the Invention

[0003] The purpose of this disclosure is to provide a hood inner panel structure, a hood assembly, and a vehicle to facilitate hood deformation for energy absorption, thereby at least partially solving the aforementioned technical problems.

[0004] To achieve the above objectives, a first aspect of this disclosure provides a cover inner panel structure, including an inner panel body, the inner panel body including a first weakening region and a second weakening region arranged at intervals in the front-back direction, and a first support region and a second support region located in the left-right direction of the first weakening region and the second weakening region.

[0005] Optionally, the first weakened region includes a first support portion and a first protrusion portion, at least a portion of the first protrusion portion is used to abut against the outer plate of the cover, and a first weakening structure is formed on the first protrusion portion.

[0006] Optionally, multiple first protrusions are provided, and the multiple first protrusions are spaced apart on the first support.

[0007] Optionally, the first weakened region further includes a second weakened structure that extends from the first protrusion to an adjacent first protrusion.

[0008] Optionally, the first weakened region further includes a first annular step portion, the first support portion and the first protrusion portion are located within the first annular step portion, at least a portion of the first annular step portion is used to abut against the outer plate, and a third weakening structure is formed on the first annular step portion.

[0009] Optionally, the first annular step portion extends obliquely downward in the direction toward the center of the first weakened region.

[0010] Optionally, both the first weakening structure and the third weakening structure are constructed as through holes.

[0011] Optionally, the second weakened region includes a second support portion and a second protrusion portion, at least a portion of the second protrusion portion is used to abut against the outer plate of the cover, and a fourth weakening structure is formed on the second protrusion portion.

[0012] Optionally, the number of the second protrusions is configured to be multiple, and a first rib is provided between two adjacent second protrusions.

[0013] Optionally, the inner panel body includes a second stepped portion extending from the rear end of the inner panel body to the front end of the inner panel body, the second stepped portion being used to separate the first support area and / or the second support area from the first weakened area and the second weakened area.

[0014] Optionally, the cross-section of the second stepped portion gradually decreases from the side near the rear end of the inner plate body to the side near the front end of the inner plate body.

[0015] Optionally, a second rib extending toward the side edge of the inner panel body is provided on the side of the second step portion near the side edge of the inner panel body.

[0016] Optionally, the second stepped portion and the areas of the inner plate body on the left and right sides of the second stepped portion together form a multi-step structure.

[0017] Optionally, a groove is formed between the first weakened region and the second weakened region, and / or between the first weakened region and the outer edge of the inner plate body, and / or between the second weakened region and the outer edge of the inner plate body, to form a cavity with the outer plate of the cap.

[0018] A second aspect of this disclosure provides a hairnet assembly including an outer panel and the aforementioned inner panel structure, the inner panel body being connected below the outer panel.

[0019] Optionally, the cover assembly includes an outer plate reinforcing plate with a fifth weakening structure, a first mounting portion is formed at the front end of the inner plate body, the outer plate reinforcing plate is connected to the inner plate body through the first mounting portion, the outer plate reinforcing plate extends to both sides along the extension direction of the inner plate body, and at least a portion of the outer plate reinforcing plate is used to abut against the outer plate to support the outer plate.

[0020] Optionally, the outer plate reinforcing plate is connected to the first mounting part via a first leg, the first leg being inclined and the cross-section of the first leg gradually increasing from the end near the inner plate body to the end away from the inner plate body.

[0021] Optionally, the first support leg includes a first reinforcing protrusion disposed on the side opposite to the inner plate body and / or a second reinforcing protrusion disposed on the side close to the inner plate body.

[0022] Optionally, the cover assembly further includes a stiffness support plate, on which a second mounting portion is formed, the stiffness support plate being connected to the inner plate body via the second mounting portion; at least a portion of the stiffness support plate is used to abut against the outer plate to support the outer plate; the stiffness support plate includes a sixth weakening structure.

[0023] Optionally, a bend is formed on the stiffness support plate; the bend is formed between a plurality of the sixth weakening structures, and / or the bend is formed between the edge of the sixth weakening structure and the edge of the stiffness support plate.

[0024] Optionally, the rigidity support plate is connected to the second mounting part by a second leg, the second leg being inclined so that the rigidity support plate forms a "U"-shaped structure.

[0025] Optionally, there are two second legs, which are spaced apart and extend in a direction away from or towards each other.

[0026] Optionally, the cover assembly further includes a locking reinforcement plate, and a third mounting portion is formed at the junction of the first weakened area and the first support area, and / or at the junction of the first weakened area and the second support area, and the locking reinforcement plate is connected to the inner plate body through the third mounting portion.

[0027] Optionally, the cover assembly further includes a hinge reinforcement plate, and a fourth mounting portion is formed at the junction of the second weakened region and the first support region, and / or at the junction of the second weakened region and the second support region, and the hinge reinforcement plate is connected to the inner plate body through the fourth mounting portion.

[0028] Optionally, ventilation holes are formed on the outer panel and the inner panel body.

[0029] A third aspect of this disclosure provides a vehicle including the aforementioned hood assembly.

[0030] Through the above technical solution, the hood inner plate structure of this disclosure, by setting a first weakening region and a second weakening region on the inner plate body, makes the hood assembly more likely to deform after colliding with a pedestrian, thereby absorbing the energy generated during the collision and reducing the injury caused to the pedestrian by the hood assembly. The first support region and the second support region can ensure the overall strength of the hood assembly, so as to achieve effective protection for the pedestrian while ensuring the strength of the hood assembly. In addition, the first weakening region and the second weakening region are arranged in the front and rear directions of the inner plate body, respectively, increasing the proportion of the weakening region on the inner plate body, thereby increasing the probability that the pedestrian's collision point is located in the weakening region of the inner plate body when colliding with the hood assembly, so as to ensure that the hood inner plate structure can still have a good pedestrian protection effect under different collision scenarios.

[0031] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0032] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the inner panel structure of the cover provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the cover assembly provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram showing the connection between the inner plate body, outer plate reinforcing plate, rigidity support plate, locking reinforcing plate and hinge reinforcing plate provided in the embodiments of this disclosure; Figure 4 This is a schematic diagram of the outer panel reinforcement plate provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the connection between the outer reinforcing plate and the inner plate body provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of the stiffness support plate provided in an embodiment of this disclosure; Figure 7 This is a schematic diagram of the connection between the rigidity support plate and the inner plate body provided in the embodiments of this disclosure; Figure 8 This is a schematic diagram of the locking reinforcement plate provided in an embodiment of this disclosure; Figure 9 This is a schematic diagram of the connection between the locking reinforcement plate and the inner plate body provided in the embodiments of this disclosure; Figure 10 This is a schematic diagram of the hinge reinforcement plate provided in an embodiment of this disclosure; Figure 11 This is a schematic diagram of the connection between the hinge reinforcement plate and the inner plate body provided in the embodiments of this disclosure.

[0033] Explanation of reference numerals in the attached figures 1-Inner panel body; 101-First mounting part; 102-Second mounting part; 103-Third mounting part; 104-Fourth mounting part; 2-First weakened area; 21-First support part; 22-First protrusion; 23-First weakened structure; 24-Second weakened structure; 25-First annular step part; 26-Third weakened structure; 3-Second weakened area; 31-Second support part; 32-Second protrusion; 33-Fourth weakened structure; 34-First rib; 4 5-First support area; 6-Second support area; 7-Second step; 8-Second rib; 9-Groove; 10-Outer plate; 11-Outer plate reinforcement plate; 12-Fifth weakening structure; 13-First support leg; 14-Second reinforcement protrusion; 15-Rigidity support plate; 16-Sixth weakening structure; 17-Bending part; 18-Second support leg; 19-Lock reinforcement plate; 10-Hinge reinforcement plate; 10-Ventilation hole. Detailed Implementation

[0034] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0035] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use; "inner" and "outer" refer to the positions relative to the contours of the corresponding components themselves; and "front" and "rear" refer to the positions of the vehicle when it is in normal driving. Furthermore, the terms "first," "second," and "third," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.

[0036] The inner panel structure of the cover and the cover assembly in the exemplary embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0037] refer to Figures 1 to 11As shown, in a first aspect, this disclosure provides a hood inner panel structure, including an inner panel body 1. The inner panel body 1 includes a first weakening region 2 and a second weakening region 3 arranged at intervals in the front-to-back direction, and a first supporting region 4 and a second supporting region 5 located in the left-to-right direction of the first weakening region 2 and the second weakening region 3. After the inner panel body 1 is connected to the outer panel 9, the first supporting region 4 and the second supporting region 5 provide support between the inner panel body 1 and the outer panel 9 to ensure the overall strength of the hood assembly. When the hood assembly collides with a pedestrian, the first weakening region 2 and / or the second weakening region 3 will be subjected to the external force exerted on the hood assembly by the pedestrian due to the impact. Under this external force, the first weakening region 2 and / or the second weakening region 3 will make the inner panel body 1 more prone to deformation, thereby causing the outer panel 9 to deform as well, thus absorbing the energy generated during the collision and reducing the impact of the hood assembly on the outer panel 9. Injuries to pedestrians; furthermore, due to the complexity and uncertainty of the situation when a pedestrian collides with a vehicle, it is impossible to determine which area of ​​the hood assembly the pedestrian will collide with. Based on this, the first weakening region 2 and the second weakening region 3 of this disclosure are arranged in the front and rear directions of the inner panel body 1, respectively, increasing the proportion of the weakening region on the inner panel body 1, thereby increasing the probability that the pedestrian's collision point is located within the weakening region of the inner panel body 1 when colliding with the hood assembly, so as to ensure that the hood inner panel structure can still have a good pedestrian protection effect under different collision scenarios.

[0038] like Figure 1 and Figure 3 As shown, in some embodiments of this disclosure, the first weakened region 2 includes a first support portion 21 and a first protrusion 22. At least a portion of the first protrusion 22 is used to abut against the outer plate 9 of the head cover, and a first weakening structure 23 is formed on the first protrusion 22. The first protrusion 22 can support the outer plate 9 to a certain extent to ensure the overall strength of the head cover assembly, while the first weakening structure 23 can make the first protrusion 22 more easily recessed towards the first support portion 21 when the first protrusion 22 is subjected to external force, thereby absorbing the external force and forming protection for pedestrians.

[0039] like Figure 1 and Figure 3 As shown, since an excessively large first weakening structure 23 may affect the strength of the head cover assembly, while a small first weakening structure 23 may not effectively protect pedestrians, multiple first protrusions 22 can be configured, with these multiple protrusions 22 spaced apart on the first support 21. That is, by configuring multiple first protrusions 22 and multiple first weakening structures 23, the first weakening structures 23 can be relatively evenly distributed in the first weakened area 2. This ensures both the strength of the head cover assembly and its flexibility to deform, thus improving the protection for pedestrians.

[0040] In addition, such as Figure 1 and Figure 3 As shown, the first weakening region 2 may further include a second weakening structure 24, which extends from the first protrusion 22 to another adjacent first protrusion 22. This further increases the size of the weakening structure disposed on the first protrusion 22, and the second weakening structure 24 passes through the first support portion 21 between the two adjacent first protrusions 22 during its extension, thereby reducing the stability of the connection between the first protrusion 22 and the first support portion 21 to a certain extent, making the first protrusion 22 more prone to deformation and energy absorption.

[0041] In some implementations, such as Figure 1 and Figure 3 As shown, the first weakening region 2 also includes a first annular step portion 25, with the first support portion 21 and the first protrusion 22 located within the first annular step portion 25. At least a portion of the first annular step portion 25 is used to abut against the outer plate 9, and a third weakening structure 26 is formed on the first annular step portion 25. The arrangement of the first annular step portion 25 can provide support for the outer plate 9 around the first support portion 21 and the first protrusion 22, while the arrangement of the third weakening structure 26 allows the hood assembly to easily deform under external force while maintaining strength, so as to absorb the energy generated when a pedestrian collides with the hood assembly, thereby protecting the pedestrian.

[0042] Specifically, the third weakening structure 26 can be spaced along the outer periphery of the first annular step portion 25, and the third weakening structure 26 can extend from the first annular step portion 25 to the outer periphery of the first annular step portion 25. This can maximize the proportion of the third weakening structure 26 on the first annular step portion 25, thereby facilitating the deformation of the first annular step portion 25 under stress.

[0043] Among them, such as Figure 1 and Figure 3 As shown, the first annular step portion 25 extends obliquely downward in the direction towards the center of the first weakened region 2. That is, the first annular step portion 25 can form a certain angle with the surrounding inner plate body 1, thereby further facilitating the deformation of the first annular step portion 25 when subjected to external force. Specifically, the angle between the first annular step portion 25 and the surrounding inner plate body 1 can be 30°-50°, with the best effect obtained when the angle between the two is 45°.

[0044] In some embodiments of this disclosure, such as Figure 1 and Figure 3As shown, the first weakening structure 23, the second weakening structure 24, and the third weakening structure 26 are all constructed as through holes. Through holes can reduce weight and decrease the connection area between structures, as well as the strength of each structure itself. This makes each structure more susceptible to deformation under external forces, thus absorbing collision energy. Furthermore, the through-hole structure is simple and can be installed on the inner plate body 1 without complex connections, improving the production efficiency of the inner plate body 1 and reducing production costs.

[0045] Alternatively, in some embodiments not shown, the first weakening structure 23, the second weakening structure 24, and the third weakening structure 26 may also be constructed as solid structures that are easily deformable, such as a mesh structure; or, the first weakening structure 23, the second weakening structure 24, and the third weakening structure 26 may be made of easily deformable materials, which is not limited herein.

[0046] In some embodiments of this disclosure, such as Figure 1 and Figure 3 As shown, the second weakening region 3 may include a second support portion 31 and a second protrusion 32. At least a portion of the second protrusion 32 is used to abut against the outer plate 9 of the cover, and a fourth weakening structure 33 is formed on the second protrusion 32. The second protrusion 32 can ensure the support of the rear end of the inner plate body 1 for the outer plate 9. The fourth weakening structure 33 can make the second protrusion 32 easily deformed when subjected to external force, thereby protecting pedestrians. In addition, the second weakening region 3 is located close to the rear end of the inner plate body 1, which increases the area of ​​the weakening region on the inner plate body 1. This allows pedestrians to reduce the damage they suffer when they collide with the cover assembly, even if they come into contact with the rear end of the cover assembly.

[0047] Specifically, such as Figure 1 and Figure 3 As shown, the number of second protrusions 32 can be configured to be multiple, and a first rib 34 is provided between two adjacent second protrusions 32. The first rib 34 can ensure the strength of the second weakened region 3 itself.

[0048] It should be noted that the fourth weakening structure 33 can be constructed as a through-hole structure, or as a solid structure that is easily deformable, or as a material that is easily deformable, etc., and this disclosure is not limited to these.

[0049] In some implementations, such as Figure 1 and Figure 3As shown, the inner plate body 1 includes a second stepped portion 6 extending from the rear end of the inner plate body 1 to the front end of the inner plate body 1. The second stepped portion 6 is used to separate the first support region 4 and / or the second support region 5 from the first weakened region 2 and the second weakened region 3. In addition, the provision of the second stepped portion 6 can also reduce the occurrence of large-area flat surfaces on the inner plate body, thereby reducing the vibration generated by the inner plate body 1 and forming a vibration isolation region. Specifically, the cross-section of the second stepped portion 6 gradually decreases from the side near the rear end of the inner plate body 1 to the side near the front end of the inner plate body 1, ensuring that the inner plate body 1 has better modal characteristics.

[0050] In addition, such as Figure 1 and Figure 3 As shown, a second rib 7 extending towards the side edge of the inner panel body 1 is provided on the side of the second step portion 6 near the side edge of the inner panel body 1. That is, the second rib 7 extends from the outer edge of the second step portion 6 towards the outer edge of the first support area 4 and / or the second support area 5. One or more second ribs 7 can be provided according to the actual situation. When a small amount of water leaks onto the inner panel body 1, the second rib 7 can block the leaked water from flowing towards the front end of the inner panel body 1 and guide the leaked water to drain from the left and right sides of the inner panel body 1.

[0051] In some implementations, such as Figure 1 and Figure 3 As shown, the second step portion 6 and the areas of the inner plate body 1 on the left and right sides of the second step portion 6 together form a multi-step structure. For example, the second step portion 6 can form a multi-step structure with the second support portion 31, the second protrusion 32 in the second weakened area 3, and some protrusions or grooves around the second step portion 6. The multi-step structure can not only ensure the strength of the inner plate body 1 itself and play a good supporting role, but also ensure the mode of the inner plate of the cover.

[0052] In some embodiments of this disclosure, such as Figure 1 and Figure 3 As shown, a groove 8 is formed between the first weakened region 2 and the second weakened region 3, and / or between the first weakened region 2 and the outer edge of the inner plate body 1, and / or between the second weakened region 3 and the outer edge of the inner plate body 1, to form a cavity with the outer plate 9 of the cover. That is, after the inner plate body 1 is connected to the outer plate 9, there is a certain gap between the two in a certain area. In this way, when a pedestrian collides with the cover assembly, the outer plate 9 will be more likely to deform and absorb energy due to the existence of the gap, so as to reduce the injury to the pedestrian.

[0053] The second aspect of this disclosure, such as Figure 2As shown, a hairnet assembly is provided, including an outer plate 9 and the aforementioned inner plate structure, with the inner plate body 1 connected to the lower part of the outer plate 9. When connected, the two together form a mounting cavity, where the first weakening region 2, the second weakening region 3, the first support region 4, and the second support region 5 are all located within the mounting cavity.

[0054] In some embodiments of this disclosure, such as Figures 3 to 5 As shown, the cover assembly includes an outer plate reinforcing plate 10 with a fifth weakening structure 1001, and a first mounting portion 101 is formed at the front end of the inner plate body 1. The outer plate reinforcing plate 10 is connected to the inner plate body 1 through the first mounting portion 101. The outer plate reinforcing plate 10 extends to both sides along the extension direction of the inner plate body 1. At least a portion of the outer plate reinforcing plate 10 is used to abut against the outer plate 9 to support the outer plate 9. Because the front end of the cover assembly is susceptible to external forces, including but not limited to the forces generated when the cover assembly is opened or closed, or when the cover assembly collides with other objects, an outer reinforcing plate 10 can be used to support the front end of the cover assembly to prevent easy deformation. A first mounting hole can be provided on the first mounting part 101, and the outer reinforcing plate 10 can be connected to the first mounting part 101 using fasteners such as screws or bolts. The fifth weakening structure 1001 can, to a certain extent, reduce its own strength and support effect on the outer plate 9 when a pedestrian collides with the cover assembly, thereby making the outer plate 9 and the outer reinforcing plate 10 more prone to deformation, absorbing the energy generated during the collision, and reducing injury to pedestrians. Furthermore, one or more fifth weakening structures 1001 can be provided depending on the actual situation, and multiple fifth weakening structures 1001 can be spaced apart on the outer reinforcing plate 10.

[0055] Of course, the fifth weakening structure 1001 can be constructed as a through-hole structure, or as a solid structure that is easily deformable, or as a material that is easily deformable, etc., and this disclosure is not limited thereto.

[0056] Among them, such as Figures 3 to 5 As shown, the outer reinforcing plate 10 can be connected to the first mounting part 101 via the first support leg 1002. The first support leg 1002 is inclined and its cross-section gradually increases from the end near the inner plate body 1 to the end away from the inner plate body 1. The first support leg 1002, with this configuration, is prone to deformation under external force, which further makes the outer reinforcing plate 10 prone to deformation.

[0057] In order to control the stamping springback of the first support leg 1002, such as Figure 4As shown, a first reinforcing protrusion 1003 can be provided on the side of the first support 1002 away from the inner plate body 1. In order to ensure the installation size of the first support 1002, a second reinforcing protrusion 1004 can also be provided on the side of the first support 1002 close to the inner plate body 1.

[0058] In some implementations, such as Figure 3 , Figure 6 and Figure 7 As shown, the cover assembly also includes a stiffness support plate 11 with a sixth weakening structure 1101, and a second mounting portion 102 is formed on the first support region 4 and / or the second support region 5. The stiffness support plate 11 is connected to the inner plate body 1 through the second mounting portion 102. At least a portion of the stiffness support plate 11 is used to abut against the outer plate 9 to support the outer plate 9. The second mounting part 102 may be provided with a second mounting hole, which facilitates the connection of the rigidity support plate 11 to the second mounting part 102 by fasteners such as bolts or screws. That is, the rigidity support plate 11 can be installed on the left and right sides of the inner plate body 1. The rigidity support plate 11 can provide a certain support for the cover assembly, and the sixth weakening structure 1101 can make the rigidity support plate 11 easily deformed when subjected to external force. Based on this, the rigidity support plate 11 indirectly forms at least a partial weakening area on at least a part of the first support area 4 and the second support area 5, which increases the proportion of the weakening area on the cover assembly, thereby increasing the probability that the pedestrian's collision part is located in the weakening area of ​​the inner plate body 1 when colliding with the cover assembly, so as to ensure that the inner plate structure of the cover can still have a good pedestrian protection effect under different collision scenarios.

[0059] Of course, the sixth weakening structure 1101 can be constructed as a through-hole structure, or as a solid structure that is easily deformable, or as a material that is easily deformable, etc., and this disclosure is not limited thereto.

[0060] Among them, such as Figure 3 , Figure 6 and Figure 7 As shown, a bending portion 1102 is formed on the stiffness support plate 11; the bending portion 1102 is formed between multiple sixth weakening structures 1101, and / or, the bending portion 1102 is formed between the sixth weakening structure 1101 and the edge of the stiffness support plate 11. When the stiffness support plate 11 is subjected to external force, the bending area of ​​the bending portion 1102 is prone to deformation due to the lack of a corresponding support structure, thereby causing the stiffness support plate 11 to deform as a whole, so as to achieve the effect of deformation energy absorption.

[0061] In addition, such as Figure 3 , Figure 6 and Figure 7As shown, the rigidity support plate 11 can be connected to the second mounting part 102 via the second support leg 1103. The second support leg 1103 is inclined so that the rigidity support plate 11 forms a "U"-shaped structure. The inclined second support leg 1103 reduces the stability of the rigidity support plate 11, and the "U"-shaped structure allows for a certain gap between the rigidity support plate 11 and the inner plate body 1, further ensuring that the rigidity support plate 11 is easy to deform when subjected to external forces.

[0062] In some implementations, such as Figure 3 , Figure 6 and Figure 7 As shown, there can be two second legs 1103. The two second legs 1103 are spaced apart and extend away from or towards each other. In this way, when the rigid support plate 11 is subjected to external force, the second legs 1103 cannot fully support the rigid support plate 11, which makes the rigid support plate 11 prone to deformation.

[0063] In some embodiments of this disclosure, such as Figure 3 , Figure 8 and Figure 9 As shown, the cover assembly also includes a locking reinforcement plate 12. A third mounting portion 103 is formed at the junction of the first weakened region 2 and the first support region 4, and / or at the junction of the first weakened region 2 and the second support region 5. The locking reinforcement plate 12 is connected to the inner plate body 1 through the third mounting portion 103. The third mounting portion 103 may be provided with a third mounting hole. The locking reinforcement plate 12 is connected to the third mounting portion 103 by fasteners such as screws or bolts. Since the structure at the junction of each region is relatively weak, the locking reinforcement plate 12 can enhance the structural strength at the junction and improve the modality of the cover assembly.

[0064] Similarly, as Figure 3 , Figure 10 and Figure 11 As shown, to ensure the structural strength and modality of the left and right sides of the inner plate body 1 at the junction of the second weakened region 3 and the first support region 4 and the second support region 5 on both sides, the cover assembly may further include a hinge reinforcing plate 13. A fourth mounting portion 104 is formed at the junction of the second weakened region 3 and the first support region 4, and / or at the junction of the second weakened region 3 and the second support region 5. The hinge reinforcing plate 13 is connected to the inner plate body 1 through the fourth mounting portion 104. The fourth mounting portion 104 may be provided with a fourth mounting hole, and the hinge reinforcing plate 13 can be connected to the fourth mounting portion 104 by fasteners such as bolts or screws.

[0065] In addition, multiple ribs and grooves can be provided on the locking reinforcement plate 12 and the hinge reinforcement plate 13 to ensure their structural strength.

[0066] In some embodiments, ventilation holes 14 are formed on the outer panel 9 and the inner panel body 1 to improve wind resistance.

[0067] Furthermore, it should be noted that the areas where the inner panel body 1 abuts against the outer panel 9, such as the first protrusion 22 on the first weakened area 2, the second protrusion 32 on the second weakened area 3, and the areas where the reinforcing plates and support plates abut against the outer panel, such as the outer panel reinforcing plate 10 and rigidity support plate 11, can all be bonded to the outer panel by applying adhesive to ensure the stability of the inner panel body 1 and the outer panel 9 after connection. Specifically, an adhesive application groove can be provided in the areas abutting against the outer panel 9, or adhesive can be applied directly to the surface of the aforementioned areas.

[0068] Furthermore, when the aforementioned weakened structure is constructed as a through hole, the shape of the through hole can be arbitrarily set, such as a hexagonal through hole, a quadrilateral through hole, a circular through hole, etc., and this disclosure does not limit it in this regard.

[0069] A third aspect of this disclosure provides a vehicle including the aforementioned hood assembly. This vehicle possesses all the beneficial effects of the aforementioned hood assembly, which will not be elaborated further herein.

[0070] In summary, this disclosure exemplarily illustrates the operating principle of the inner cover structure and the cover assembly.

[0071] After a collision between a vehicle and a pedestrian, the pedestrian's head is highly likely to come into contact with the vehicle's hood assembly due to inertia. If the pedestrian's head collides with the front end of the hood assembly, the first protrusion 22 and the first annular step 25 in the first weakening region 2 will be more prone to deformation under the action of the first weakening structure 23, the second weakening structure 24, and the third weakening structure 26. Similarly, the outer panel reinforcement plate 10 will be more prone to deformation under the action of the fifth weakening structure 1001. Thus, the outer panel 9 and the aforementioned structures will deform and concave downwards, absorbing the energy generated by the collision between the vehicle and the pedestrian, reducing the injury caused by the hood assembly to the pedestrian. If the pedestrian's head collides with the rear end of the hood assembly, the second protrusion 32 on the second weakening region 3 will be more prone to deformation under the action of the fourth weakening structure 33. Therefore, the outer panel 9... The second weakened area 3 is also prone to downward indentation after being impacted by the head, absorbing energy and reducing the impact on the pedestrian's head. If the pedestrian's head collides with the sides of the hood assembly, the stiffness support plates 11 on the first support area 4 and the second support area 5 will be more likely to deform under the action of the sixth weakened structure 1101. As a result, the outer plate 9 and the stiffness support plate 11 will deform and indent downward to absorb the energy generated after the collision between the vehicle and the pedestrian. Based on this, the hood assembly of this disclosure can ensure strength while making the hood assembly easy to deform after colliding with a pedestrian, thereby absorbing the energy generated during the collision and reducing the injury caused to the pedestrian by the hood assembly. In addition, the weakened areas and the weakened structure occupy most of the area of ​​the hood assembly to ensure that the inner hood panel structure can still have a good pedestrian protection effect under different collision scenarios.

[0072] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0074] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A structure of a lid inner plate characterized by comprising: The inner plate body comprises a first weakened area and a second weakened area arranged in a front-rear direction, and a first supporting area and a second supporting area arranged in a left-right direction of the first weakened area and the second weakened area.

2. The inner lid panel structure of claim 1, wherein The first weakened area comprises a first supporting part and a first protruding part, at least part of the first protruding part is used for abutting against the outer plate of the cover, and a first weakening structure is formed on the first protruding part.

3. The inner lid panel structure of claim 2, wherein The first protruding part is configured to have a plurality of first protruding parts arranged in a spaced manner on the first supporting part.

4. The inner lid panel structure of claim 3, wherein The first weakened area further comprises a second weakening structure, the second weakening structure extends from the first protruding part to the adjacent another first protruding part.

5. The inner lid panel structure of claim 2, wherein The first weakened area further comprises a first annular stepped part, the first supporting part and the first protruding part are located in the first annular stepped part, at least part of the first annular stepped part is used for abutting against the outer plate, and a third weakening structure is formed on the first annular stepped part.

6. The inner lid panel structure of claim 5, wherein In the direction towards the center of the first weakened area, the first annular stepped part is arranged in a downwardly inclined manner.

7. The inner lid panel structure of claim 5, wherein The first weakening structure and the third weakening structure are both configured as through holes.

8. The inner lid structure of claim 1, wherein The second weakened area comprises a second supporting part and a second protruding part, at least part of the second protruding part is used for abutting against the outer plate of the cover, and a fourth weakening structure is formed on the second protruding part.

9. The inner lid structure of claim 8, wherein The number of the second protruding part is configured to have a plurality of second protruding parts, and a first protruding rib is arranged between two adjacent second protruding parts.

10. The inner lid structure of claim 1, wherein The inner plate body comprises a second stepped part arranged from the rear end of the inner plate body to the front end of the inner plate body, the second stepped part is used for separating the first supporting area and / or the second supporting area from the first weakened area and the second weakened area.

11. The inner lid panel structure of claim 10, wherein The cross section of the second stepped part gradually decreases from the side close to the rear end of the inner plate body to the side close to the front end of the inner plate body.

12. The inner lid panel structure of claim 11, wherein The second stepped part is arranged on the side close to the side edge of the inner plate body, and a second protruding rib is arranged on the side extending towards the side edge of the inner plate body.

13. The inner lid panel structure of claim 10, wherein The second stepped part and the area of the inner plate body on both sides of the second stepped part jointly form a multi-step structure.

14. The inner lid panel structure according to any one of claims 1-13, wherein, A groove (8) is formed between the first weakened area and the second weakened area, and / or between the first weakened area and the outer edge of the inner plate body, and / or between the second weakened area and the outer edge of the inner plate body, so as to form a cavity between the outer plate of the cover.

15. A cap application assembly characterized by, The outer plate and The inner plate structure of any one of claims 1-14, the inner plate body is connected below the outer plate. The cover assembly comprises a fifth weakened structure outer plate reinforcing plate, the front end of the inner plate body is provided with a first mounting part, the outer plate reinforcing plate is connected with the inner plate body through the first mounting part, the outer plate reinforcing plate extends to both sides along the extension direction of the inner plate body, and at least part of the outer plate reinforcing plate is used for abutting against the outer plate to support the outer plate.

16. The lidding assembly of claim 15, wherein, ​ 17. The lidding assembly of claim 16, wherein, The outer plate reinforcing plate is connected to the first mounting part via a first leg. The first leg is inclined and its cross-section gradually increases from the end closest to the inner plate body to the end away from the inner plate body.

18. The lidding assembly of claim 17, wherein, The first support leg includes a first reinforcing protrusion disposed on the side opposite to the inner plate body and / or a second reinforcing protrusion disposed on the side close to the inner plate body.

19. The lidding assembly of claim 15, wherein, The cover assembly further includes a sixth weakened structural stiffness support plate, on which a second mounting portion is formed, and the stiffness support plate is connected to the inner plate body through the second mounting portion; At least a portion of the stiffness support plate is used to abut against the outer plate to support the outer plate.

20. The lidding assembly of claim 19, wherein, The rigidity support plate has a bent portion formed therein; The bending portion is formed between the plurality of the sixth weakened structures, and / or, The bending portion is formed between the edge of the sixth weakening structure and the stiffness support plate.

21. The lidding assembly of claim 20, wherein, The rigidity support plate is connected to the second mounting part by a second leg, which is inclined so that the rigidity support plate forms a "U" shaped structure.

22. The lidding assembly of claim 21, wherein, The second support has two legs, which are spaced apart and extend in a direction away from or towards each other.

23. The lidding assembly of claim 15, wherein, The cover assembly further includes a locking reinforcement plate, and a third mounting portion is formed at the junction of the first weakened area and the first support area, and / or at the junction of the first weakened area and the second support area, and the locking reinforcement plate is connected to the inner plate body through the third mounting portion.

24. The lidding assembly of claim 15, wherein, The cover assembly further includes a hinge reinforcement plate, and a fourth mounting portion is formed at the junction of the second weakened region and the first support region, and / or at the junction of the second weakened region and the second support region. The hinge reinforcement plate is connected to the inner plate body through the fourth mounting portion.

25. The lidding assembly of claim 15, wherein, The outer panel and the inner panel body have corresponding ventilation holes.

26. A vehicle characterized by Includes the hairnet assembly as described in claims 15-25.

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