Hood inner panel, hood, and vehicle

Abstract

The application provides a machine cover inner plate, a machine cover and a vehicle, and relates to the technical field of automobile parts. The machine cover inner plate comprises an inner plate body, the inner plate body comprises a top plate part and side plate parts located on both sides of the top plate part, and the side plate parts are formed with wing panel functional areas. The side plate parts of the machine cover inner plate are integrated with the wing panel functional areas, so that the front compartment of the vehicle is integrated, the integration degree is high, a wing panel does not need to be additionally arranged outside the machine cover inner plate, the number of parts can be reduced, the development cycle can be shortened, the assembly process of the wing panel is reduced, and the cost can be reduced to a certain extent. Moreover, the wing panel functional areas are integrated on the side plate parts, the machine cover inner plate can be designed in an overall structure on the basis of comprehensively considering the requirements of the wing panel functional areas and other parts in terms of dent resistance and pedestrian protection, the overall structure of the machine cover inner plate is beneficial to the overall structural layout, and the comprehensive performance of the machine cover is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts, in particular to a hood inner panel, a hood and a vehicle. BACKGROUND

[0002] With the continuous development of automobile technology, people have higher and higher requirements for the performance of vehicles. For example, the support performance and pedestrian protection performance of the hood, which is one of the important components affecting the styling of the automobile, are gradually improved. However, the inner panel of the traditional hood is designed separately from the fender, and then assembled. This setting method has many formed parts, long development cycle, high cost, and the stress condition of the connection between the two is complex, the reliability is poor, and it is difficult to balance the lightweight, support performance and pedestrian protection performance and other requirements. SUMMARY

[0003] The present application aims to solve at least one aspect of the above problem to some extent.

[0004] In a first aspect, the present application provides a hood inner panel, comprising an inner panel body, the inner panel body comprising a top plate portion and side plate portions located on both sides of the top plate portion, the side plate portions forming a fender functional area.

[0005] Optionally, the top plate portion comprises a centrally protruding structure protruding upward, a plurality of support portions are formed on the centrally protruding structure, the support portions are used for connecting with a hood outer panel; portions of the inner panel body on both sides of the centrally protruding structure are used for connecting a first reinforcing plate extending in the front-rear direction, and a hinge mounting area is provided on the first reinforcing plate.

[0006] Optionally, a first recess is provided at a front end position of the portion of the inner panel body on both sides of the centrally protruding structure, the first recess is used for mounting a lock catch or a lock catch reinforcing plate, and a front end of the first reinforcing plate extends forward to be close to the first recess.

[0007] Optionally, a plurality of energy-absorbing deformation guide structures are provided on the inner panel body in the front-rear direction, the energy-absorbing deformation guide structures are used for causing the inner panel body to bend and absorb energy in a predetermined direction at corresponding calibration lines, the corresponding calibration lines of the energy-absorbing deformation guide structures are located in front of the hinge mounting area; the energy-absorbing deformation guide structures comprise guide grooves and / or weakening holes.

[0008] Optionally, a protruding portion is formed at an interval from front to back at a top end portion of the centrally protruding structure, at least one weight-reducing hole is formed in each of the protruding portions, and the edges of the weight-reducing holes form the support portions.

[0009] The guide grooves comprise concave guide grooves and / or convex rib guide grooves;

[0010] The concave guide groove is formed by the boundary region of the protruding portions and the protruding portions, and the weakened hole is arranged at the end of the concave guide groove.

[0011] The protruding rib guide groove is arranged on the left and right sides of the central raised structure on the inner plate body, and the protruding rib guide groove is arranged corresponding to the lightening hole. The weakened hole is arranged between the lightening hole and the protruding rib guide groove on the central raised structure.

[0012] Optionally, the top end portion of the central raised structure is in a “convex” shape when viewed from above, wherein the small end region and the large end region of the “convex” shape are respectively provided with the protruding portions, and the small end region is arranged close to the front end relative to the large end region.

[0013] The “convex” shape is formed with the concave guide groove at the boundary between the small end region and the large end region.

[0014] In the front-rear direction, a plurality of protruding rib guide grooves are arranged on the left and right sides of the large end region of the inner plate body along the front-rear direction, and the protruding rib guide grooves are arranged corresponding to the lightening hole of the large end region.

[0015] Optionally, a plurality of sub-regions are formed in the left-right direction in the large end region, and each sub-region is provided with one or more protruding portions.

[0016] The protruding portions of at least one sub-region extend to the edge close to the large end region along the front-rear direction.

[0017] And / or, the protruding contour lines on the left and right sides of at least one protruding portion are arranged obliquely relative to the front-rear direction and the left-right direction when viewed from above.

[0018] And / or, a plurality of spaced protruding regions are formed in at least one protruding portion, and each protruding region is arranged with the lightening hole.

[0019] Optionally, the area of the inner plate body before the support portion at the front end of the central raised structure is used to form a front cavity with the outer plate of the machine cover. The inner plate body is provided with a first opening at the front cavity and a first support structure is formed at the rear end edge of the first opening. The first support structure is used to extend to the side close to the outer plate of the machine cover and is connected with the outer plate of the machine cover.

[0020] And / or, the inner plate body further comprises a rear side protruding structure located behind the central protruding structure, the central protruding structure and the rear side protruding structure are connected and used to form a rear cavity with the outer plate of the hood, the connection position of the central protruding structure and the rear side protruding structure is a stepped groove structure with a notch facing the outer plate of the hood in the longitudinal section, and the width of the stepped groove structure groove bottom gradually increases from the middle to the edge in the left-right direction.

[0021] In a second aspect, the present application provides a hood comprising the hood inner plate as described in the first aspect above.

[0022] In a third aspect, the present application provides a vehicle comprising the hood as described in the second aspect above.

[0023] Compared with the related prior art, in the hood inner plate, the hood and the vehicle of the present application, the side plate part of the hood inner plate is integrated with the fender functional area, so that the front compartment of the vehicle is integrated, the integration degree is high, no fender needs to be additionally arranged outside the hood inner plate, the number of parts can be reduced, the development cycle can be shortened, the assembly process of the fender is reduced, and the cost can be reduced to a certain extent. Moreover, the fender functional area is integrated on the side plate part, the overall structure of the hood inner plate can be designed on the basis of comprehensively considering the requirements of the fender functional area and the like and the pedestrian protection requirements, which is beneficial to the overall structural layout of the hood inner plate and thus improves the comprehensive performance of the hood. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structure diagram of an inner plate body of a hood inner plate in an embodiment of the present application;

[0025] Figure 2 FIG. 2 is a front view of the inner plate body in the embodiment of the present application;

[0026] Figure 3 FIG. 3 is an end view of the A-A section; Figure 2

[0027] Figure 4 FIG. 4 is a top view of the inner plate body in the embodiment of the present application;

[0028] Figure 5 FIG. 5 is a structure diagram of a part of the protruding part in the embodiment of the present application, in which a plurality of protruding areas are arranged in the protruding part, and a weight-reducing hole is arranged in the protruding area;

[0029] Figure 6 FIG. 6 is a structure diagram of the connection of the first reinforcing plate and the inner plate body in the embodiment of the present application;

[0030] Figure 7 FIG. 7 is a structure diagram of the first reinforcing plate in the embodiment of the present application.

[0031] KEY​

[0032] 1 - roof portion; 11 - non-raised portion; 111 - first groove; 12 - central raised structure; 121 - "n" shaped structure; 122 - intermediate connecting structure; 1221 - "n" shaped surface; 1222 - transition connecting surface; 123 - protruding portion; 1231 - protruding area; 124 - weight-reducing hole; 125 - support portion; 1251 - tab; 126 - first sub-area; 127 - second sub-area; 128 - third sub-area; 2 - side portion; 21 - fender functional area; 3 - rear side raised structure; 4 - energy-absorbing deformation guiding structure; 41 - guiding groove; 411 - concave guiding groove; 412 - convex rib guiding groove; 42 - weakening hole; 421 - second support structure; 5 - first opening; 51 - first support structure; 511 - inclined section; 512 - support section; 6 - first reinforcement plate; 61 - hinge mounting area; 62 - reinforcement plate deformation guiding structure; 7 - lock catch reinforcement plate; 8 - stepped groove structure; 81 - groove bottom. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] In the drawings, the Z-axis represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis, that is, the direction in which the arrow of the Z-axis points, represents up, and the negative direction of the Z-axis, that is, the direction opposite to the positive direction of the Z-axis, represents down; the X-axis represents the horizontal direction, that is, the left-right position, and the positive direction of the X-axis, that is, the direction in which the arrow of the X-axis points, represents the right side, and the negative direction of the X-axis, that is, the direction opposite to the positive direction of the X-axis, represents the left side; the Y-axis represents the front-rear position, and the positive direction of the Y-axis, that is, the direction in which the arrow of the Y-axis points, represents the front side, and the negative direction of the Y-axis, that is, the direction opposite to the positive direction of the Y-axis, represents the rear side; it should be noted that the above-mentioned meanings of the Z-axis, the Y-axis and the X-axis are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] As shown in FIG. 1, the embodiment of the present application provides a hood inner panel, which comprises an inner panel body, the inner panel body comprising a roof portion 1 and side portions 2 located on both sides of the roof portion 1, and the side portions 2 are formed with fender functional areas 21. Figure 1

[0036] ​In the present specification, the content of the present application will be described taking the example that the inner plate body is formed by sheet metal stamping, but it should be understood that the inner plate body can also be formed by other technical means such as 3D printing. On this basis, it should be understood by those skilled in the art that the name of part of the structure in the present specification, for example, the definition related to "bending", does not necessarily limit the forming process thereof, and should not limit the present application.

[0037] The upper end of the side plate part 2 is connected with the edge of the top plate part 1 to form a first transition line, the lower end of the side plate part 2 extends downward and outward in the left-right direction, and the side plate part 2 forms a fender functional area 21 which can replace the traditional fender. The inner plate body further includes side plates arranged on the left and right sides and the front side, and the side plates are used to be connected with the edge of the outer plate of the hood.

[0038] In this way, the fender functional area 21 is integrated on the side plate part 2 of the inner plate body of the hood, so that the front compartment of the vehicle is integrated, the integration degree is high, and the fender does not need to be arranged outside the inner plate body of the hood. The number of parts can be reduced, the development cycle can be shortened, the assembly process of the fender can be reduced, and the cost can be reduced to a certain extent. Moreover, the fender functional area 21 is integrated on the side plate part 2, and the overall structure of the inner plate body of the hood can be designed on the basis of comprehensively considering the requirements of the fender functional area 21 and the like. The anti-dent requirement and the pedestrian protection requirement, which is beneficial to the overall structural layout of the inner plate body of the hood and improves the comprehensive performance of the hood. Subsequent detailed description will be made in combination with specific embodiments.

[0039] As shown in Figure 1 and Figure 2 Optionally, the top plate part 1 includes a central raised structure 12 protruding upward, and a plurality of support parts 125 are formed on the central raised structure 12, and the support parts 125 are used to be connected with the outer plate of the hood.

[0040] As shown in Figure 1 , Figure 6 and Figure 7 The part of the inner plate body on the left and right sides of the central raised structure 12 is used to connect the first reinforcing plate 6 extending in the front-rear direction, and the first reinforcing plate 6 is provided with a hinge mounting area 61.

[0041] Specifically, in the front view of the vehicle (looking from the front of the vehicle to the rear), the central raised structure 12 is arranged to protrude upward relative to the top plate part 1, and the part of the top plate part 1 on the left and right sides of the central raised structure 12 is an unraised part 11. The connection mode of the support part 125 and the outer plate of the hood can adopt related technologies, for example, using glue connection. At this time, in the left-right direction, the first reinforcing plate 6 includes a part above the unraised part 11 and / or a part outside the side plate part 2.

[0042] Thus, the central raised structure 12 is connected with the outer panel of the hood through the support part 125, which can strengthen the support of the outer panel of the hood and improve the dent resistance of the outer panel of the hood. The central raised structure 12 and the un-raised part 11 form a local reinforcement structure in the transition area, and the overall stiffness of the inner panel of the hood is higher. At this time, the side plate of the side plate part 2 integrated with the functional area 21 of the fender is connected with the edge of the outer panel of the hood, and the side cavity surrounded by the left and right sides of the central raised structure 12 and the outer panel of the hood has a large span in the left-right direction. The first reinforcement plate 6 in the side cavity can cover a larger area, thereby locally reinforcing the part of the inner panel of the hood corresponding to the side cavity, for example, enhancing the anti-lean performance of the inner panel of the hood in the left-right direction and the anti-pulling performance in the front-back direction, and the overall stress performance of the hood is better.

[0043] As shown in Figure 1 , Figure 2 and Figure 4 , further, the front end position of the part of the inner panel body on the left and right sides of the central raised structure 12 is provided with a first groove 111, and the first groove 111 is used for mounting a lock catch or a lock catch reinforcement plate 7. The front end of the first reinforcement plate 6 extends forward to near the first groove 111.

[0044] In this specification, the content of the present application will be described below with the hood including the lock catch reinforcement plate 7 as an example. Exemplarily, the lock catch reinforcement plate 7 is located in the first groove 111 and connected with the groove bottom 81 of the first groove 111, and the two are generally connected by welding. The lock catch reinforcement plate 7 can be provided with a first auxiliary support structure for supporting the top panel of the hood.

[0045] As shown in Figure 1 and Figure 4 , specifically, the position near the front end of the un-raised part 11 is recessed downward to form a first groove 111. Generally, the first groove 111 and the first reinforcement plate 6 will have a gap in the left-right direction, and the front end of the first reinforcement plate 6 can extend to the rear end position near the first groove 111 in the front-back direction, for example, the front end of the inner side of the first reinforcement plate 6 is spaced apart from the rear end of the first groove 111 by 0-30 mm, 5-20 mm in the left-right direction. Specifically, it can be adjusted in combination with test data.

[0046] Thus, the two first grooves 111 on the inner panel body are oppositely arranged in the left-right direction, the hood realizes a double lock catch design, which can improve the pedestrian protection performance, the first groove 111 can enhance the local stiffness through the formed side wall surface, and can increase the cavity formed by the inner panel of the hood and the outer panel of the hood to a certain extent, thereby improving the safety performance. The front end of the first reinforcement plate 6 extends forward to near the first groove 111, and the first reinforcement plate 6 can have a large span range in the front-back direction, thereby achieving good anti-pulling performance, and the dent resistance and anti-lean performance of the hood are good.

[0047] As shown in Figure 4 Optionally, a plurality of energy-absorbing deformation guiding structures 4 are arranged on the inner panel body in the front-rear direction, and are used to cause the inner panel body to bend and deform in a predetermined direction at corresponding calibration lines, and the corresponding calibration lines of the energy-absorbing deformation guiding structures 4 are located in front of the hinge mounting area 61.

[0048] It should be noted that, for the sake of convenience and understanding, in the Figure 4 , the calibration lines are shown as straight lines (such as the first line L1, the second line L2, the third line L3, and the fourth line L4) in the top view, which generally extend in the left-right direction, but it should be understood that in actuality, due to the shape of the hood inner panel, the corresponding calibration lines of the energy-absorbing deformation guiding structures 4 can not be straight lines, but can be spatial curves with curvature.

[0049] The energy-absorbing deformation guiding structures 4 mainly weaken the inner panel body on the calibration lines, for example, by using guiding grooves 41 and / or weakening holes 42. When the hood is subjected to a collision, the inner panel body bends and deforms to a certain extent at the energy-absorbing deformation guiding structures 4, for example, in the front-rear direction, thereby absorbing the impact energy by bending and deforming, protecting pedestrians and passengers, and improving the safety performance of the vehicle. By arranging the corresponding calibration lines of the energy-absorbing deformation guiding structures 4 in front of the hinge mounting area 61, the energy-absorbing deformation is avoided in the hinge mounting area 61, and the stress performance of the hood at the hinge mounting area 61 can be ensured.

[0050] As shown in Figure 1 Optionally, the top end portion of the central raised structure 12 is formed with protruding portions 123 at intervals from front to back, and at least one lightening hole 124 is formed in each protruding portion 123, and the edge of the lightening hole 124 forms a supporting portion 125.

[0051] As shown in Figure 4 The guiding groove 41 includes a concave guiding groove 411, which is formed by the boundary area of the protruding portions 123 different in front and back and the protruding portions 123, and the weakening hole 42 is arranged at the end position of the concave guiding groove 411. The boundary area can be understood as the area between the protruding portions 123 at intervals from front to back of the “convex” structure 121, which generally extends in the left-right direction.

[0052] It should be noted that in the front-rear direction, the protruding portions 123 at both ends are higher than the boundary area due to the protrusion, thereby generating a height difference and forming the concave guiding groove 411, which is generally arranged in the left-right direction.

[0053] As shown in Figure 4As shown, the top end portion of the central raised structure 12 is in a "convex" structure 121 in plan view (the edge profile of the "convex" structure 121 is shown as the outermost thickened line), wherein the small end region and the large end region of the "convex" structure 121 are respectively provided with a convex portion 123, and the small end region is arranged close to the front end relative to the large end region. The first recess 111 for mounting the lock catch or the lock catch reinforcing plate 7 is formed on the left and right sides of the small end region of the inner panel body, which will not be described in detail here. Figure 4 As shown, the top end portion of the central raised structure 12 is in a "convex" structure 121 in plan view (the edge profile of the "convex" structure 121 is shown as the outermost thickened line), wherein the small end region and the large end region of the "convex" structure 121 are respectively provided with a convex portion 123, and the small end region is arranged close to the front end relative to the large end region. The first recess 111 for mounting the lock catch or the lock catch reinforcing plate 7 is formed on the left and right sides of the small end region of the inner panel body, which will not be described in detail here.

[0054] As shown, the top end portion of the central raised structure 12 is in a "convex" structure 121 in plan view (the edge profile of the "convex" structure 121 is shown as the outermost thickened line), wherein the small end region and the large end region of the "convex" structure 121 are respectively provided with a convex portion 123, and the small end region is arranged close to the front end relative to the large end region. The first recess 111 for mounting the lock catch or the lock catch reinforcing plate 7 is formed on the left and right sides of the small end region of the inner panel body, which will not be described in detail here. Figure 1 Figure 5 As shown, the central raised structure 12 further includes an intermediate connecting structure 122, one end of the intermediate connecting structure 122 is connected with the edge of the "convex" structure 121, and the other end is connected with the un-raised portion 11, which transitions the "convex" structure 121 to the un-raised portion 11. The intermediate connecting structure 122 can include a bending structure to achieve local reinforcement, which is specifically designed according to the modeling requirements. For example, the intermediate connecting structure 122 includes a portion that is raised upward relative to the un-raised portion 11 and is in a "convex" surface 1221 in plan view, and further includes a transition connecting surface 1222 that is spaced apart from the edge of the "convex" surface 1221 and is connected with the "convex" structure 121. The weakening hole 42 is mainly arranged corresponding to the transition connecting surface 1222, the upper end of the weakening hole 42 can extend into the "convex" structure 121, and the lower end can extend into the "convex" surface 1221, which will not be described in detail here.

[0055] The "convex" structure 121 is formed with a concave guide groove 411 at the boundary between the small end region and the large end region, and is used to form the first energy-absorbing deformation guide structure 4. The corresponding reference line of the first energy-absorbing deformation guide structure 4 can refer to the first line L1 in Figure 4 .

[0056] In this way, the convex portion 123 is arranged and the weight-reducing hole 124 is formed in the convex portion 123, the weight-reducing hole 124 can be used for weight reduction, and can also enhance the deformability of the central raised structure 12 to a certain extent, which is beneficial for pedestrian protection through energy absorption. The convex profile of the convex portion 123 is used to reinforce the local area where it is located, avoiding insufficient local stiffness caused by the formation of the weight-reducing hole 124. Through reasonable size design, the lightweight requirement and the reliability requirement can be considered; further, the high-low surface difference at the boundary between the front and rear different convex portions 123 is used to form the concave guide groove 411, and the weakening hole 42 is arranged at both ends of the concave guide groove 411, so that the inner panel body can be bent and deformed in a predetermined direction at the first line L1, thereby achieving the energy-absorbing requirement, which has simple structure and strong practicability.

[0057] As shown, the top end portion of the central raised structure 12 is in a "convex" structure 121 in plan view (the edge profile of the "convex" structure 121 is shown as the outermost thickened line), wherein the small end region and the large end region of the "convex" structure 121 are respectively provided with a convex portion 123, and the small end region is arranged close to the front end relative to the large end region. The first recess 111 for mounting the lock catch or the lock catch reinforcing plate 7 is formed on the left and right sides of the small end region of the inner panel body, which will not be described in detail here. Figure 4 Figure 5 ​​As shown, optionally, a plurality of sub-regions are formed in the large-end region in the left-right direction, and each sub-region is provided with one or more protrusions 123;

[0058] The protrusions 123 of at least one sub-region extend to the edges of the large-end region in the front-rear direction;

[0059] And / or, the protruding contour lines on the left and right sides of at least one protrusion 123 are obliquely arranged relative to the front-rear direction and the left-right direction in plan view;

[0060] And / or, a plurality of spaced protruding regions 1231 are formed in at least one protrusion 123, and each protruding region 1231 is provided with a weight-reducing hole 124.

[0061] As Figure 4 As shown, for example, the first sub-region 126 at the edge in the left-right direction, the second sub-region 127 adjacent to the first sub-region 126, and one or more third sub-regions 128 between the second sub-regions 127 (the third sub-regions 128 are shown by a rough dashed line, and there is no actual boundary) are included in all sub-regions. One protrusion 123 is arranged in each of the first sub-region 126 and the second sub-region 127, and the protrusion 123 extends to the edge of the large-end region in the front-rear direction. The protrusion 123 in the first sub-region 126 is provided with only one weight-reducing hole 124. The protrusion 123 in the second sub-region 127 is provided with at least two, for example, three weight-reducing holes 124, which are arranged in a triangular shape, and at least two of the weight-reducing holes 124 are arranged in the front-rear direction. The protrusions 123 arranged in the third sub-regions 128 are arranged in the front-rear direction, and each protrusion 123 is provided with only one weight-reducing hole 124.

[0062] The weight-reducing holes 124 in the second sub-regions 127 and the third sub-regions 128 are arranged in two groups in the front-rear direction. The protruding contour lines on the left and right sides of the protrusions 123 in the first sub-region 126 and the second sub-region 127 are obliquely arranged relative to the front-rear direction and the left-right direction in plan view.

[0063] The two protrusions 123 in the small-end region are arranged in the left-right direction, and each protrusion 123 is provided with two weight-reducing holes 124 arranged in the left-right direction. At this time, a plurality of protruding regions 1231 corresponding to the number of weight-reducing holes 124 are arranged in the protrusion 123, so as to strengthen the local structure of the protrusion 123.

[0064] Thus, the convex profile of the convex portion 123 strengthens the area, for example, the sub-area, where the convex portion 123 is located. The convex profile lines of the convex portion 123 located on the left and right sides are inclined with respect to the front-rear direction and the left-right direction in a plan view. When the extension direction of the convex profile line is consistent with the front-rear direction in the case where the coverage of the weight-reducing hole 124 is consistent, the bending resistance of the top end portion of the central raised structure 12 in the left-right direction can be improved at least to a certain extent, and the overall reliability is high. When a plurality of spaced-apart convex areas 1231 are formed in the convex portion 123, and each convex area 1231 corresponds to the weight-reducing hole 124, the convex profile of the convex area 1231 can be used to locally strengthen the internal area of the convex portion 123, and improve the stress stability.

[0065] As shown in Figure 5 It should be noted that the edges of the weight-reducing hole 124 form tabs 1251, and the tabs 1251 form gaps therebetween. The tabs 1251 form the support portion 125, which can be used for gluing connection with the outer panel of the hood. Details are not described herein.

[0066] As shown in Figure 4 Optionally, the guide slot 41 includes a convex rib guide slot 412, or the guide slot 41 includes both the concave guide slot 411 and the convex rib guide slot 412. Hereinafter, this case is taken as an example for description.

[0067] The convex rib guide slot 412 is located on the left and right sides of the central raised structure 12 on the inner panel body. The convex rib guide slot 412 corresponds to the weight-reducing hole 124. At this time, preferably, a weakened hole 42 is arranged on the central raised structure 12 corresponding to the area between the weight-reducing hole 124 and the convex rib guide slot 412.

[0068] Specifically, a plurality of convex rib guide slots 412 are arranged on the left and right sides of the large end region of the inner panel body along the front-rear direction. The convex rib guide slots 412 correspond to the weight-reducing holes 124 of the large end region.

[0069] As shown in Figure 1As shown, in the left-right direction, one end of the rib guide groove 412 extends to the transition between the unraised portion 11 and the central raised structure 12, and the other end extends to the edge plate of the side plate portion 2. The rib guide groove 412 protrudes upwards towards the corresponding inner plate body. The weakening hole 42 is provided at the transition connection surface 1222, and its upper end can extend to the "convex" shaped structure 121, and its lower end can extend to the "concave" shaped surface. At this time, the weakening hole 42 mainly plays the role of assisting in weakening and avoiding stress concentration, which would prevent the inner plate body from undergoing energy absorption deformation at the rib guide groove 412. Moreover, the calibration line cannot be understood as a straight line in the conventional sense. In the large end area, the positions of the rib guide groove 412 and the weakening hole 42 of the same energy absorption deformation guide structure 4 in the left-right direction when viewed from above are not necessarily required to be completely located on the same straight line extending in the left-right direction. The position of the weakening hole 42 is adjusted according to the actual energy absorption deformation situation.

[0070] like Figure 4 As shown, exemplarily, in the front-to-back direction, multiple, such as three raised rib guide grooves 412 are spaced apart and corresponding to weight reduction holes 124 in the large end region, which are used to form the second, third, and fourth energy-absorbing deformation guide structures 4. The calibration line corresponding to the second energy-absorbing deformation guide structure 4 can be referenced. Figure 4 The calibration lines corresponding to the second line L2 and the third energy-absorbing deformation guide structure 4 can be referenced. Figure 4 The calibration lines corresponding to the third line L3 and the fourth energy-absorbing deformation guide structure 4 can be referenced. Figure 4 The fourth line L4 is formed in the second sub-region 127 and the third sub-region 128. Two sets of weight-reducing holes 124 are formed in the front-back direction, wherein the third line L3 and the fourth line L4 correspond to the front and rear edge positions of the rear weight-reducing hole 124 (e.g., the position corresponding to the notch), and the second line L2 corresponds to the rear edge position of the front weight-reducing hole 124.

[0071] Thus, the rib guide groove 412 can be used to guide the energy-absorbing deformation of the inner plate body. The weakening hole 42 adapts to this guidance, avoids stress concentration, and improves the controllability and reliability of its energy-absorbing deformation. The multi-stage energy-absorbing deformation guide structure 4 enables the hood to achieve good pedestrian protection over a large range in the front and rear directions, and can enhance the overall energy absorption effect.

[0072] Furthermore, the distance between the first and second energy-absorbing deformation guide structures 4 in the front-to-back direction is greater than the distance between other adjacent energy-absorbing deformation guide structures 4. For example, the distance between adjacent energy-absorbing deformation guide structures 4 gradually decreases from front to back.

[0073] It should be understood that due to the position of the first reinforcing plate 6 and the hinge mounting area 61, the closer to the hinge mounting area 61, the higher the rigidity of the inner panel body from front to back, and the energy-absorbing deformation guiding structure 4 is arranged gradually densely, so that the energy-absorbing deformation effect of the position close to the hinge mounting area 61 in front of the hinge mounting area 61 can be enhanced to a certain extent, and the pedestrian protection score is improved.

[0074] As shown in Figure 3 and Figure 4 , optionally, the area of the inner panel body before the support part 125 at the front end of the central raised structure 12 is used to surround the front cavity with the hood outer panel, and the inner panel body is provided with a first opening 5 at the front cavity and a first support structure 51 is formed at the rear end edge of the first opening 5, the first support structure 51 is used to extend to the side close to the hood outer panel and connect with the hood outer panel.

[0075] Specifically, the side plate of the front part of the inner panel body is connected with the front end of the hood outer panel in a flange connection, and the connection position is spaced apart from the support part 125 at the small end area of the "convex" shaped structure 121 in the front and rear direction, the area corresponding to the spacing forms a front cavity, and the inner panel body is spaced apart in the left and right directions in the area where the front cavity is located. A plurality of, for example, three first openings 5 are distributed, the material removed to form the first opening 5 is bent and extended to the side close to the hood outer panel, and supports the hood outer panel.

[0076] As shown in Figure 3 , the first support structure 51 can include an inclined section 511 and a support section 512, the inclined section 511 is integrally connected with the rear end edge of the first opening 5, the support section 512 is connected with the end of the inclined section 511, the support section 512 is attached to and connected with the hood outer panel, and the inclined section 511 can be provided with a reinforcing rib for reinforcement.

[0077] In this way, by forming the front cavity and the first support structure 51, the anti-denting performance of the hood at the front end can be enhanced to a certain extent, that is, even without setting another support, better support for the hood outer panel can be achieved, the height difference (the spacing between the hood inner panel and the hood outer panel) of the front cavity can be set to be larger, there can be a larger collision intrusion amount, the front end of the central raised structure 12 can be set forward, and the coverage area in the front and rear direction can be expanded, and the front part of the row protection score (the weight reduction hole 124 and the energy-absorbing deformation guiding structure 4 improve the energy-absorbing effect of the central raised structure 12, and the first support structure 51 can deform to a certain extent) can be improved.

[0078] As shown in Figure 2 and Figure 3As shown, the inner plate body further comprises a rear protruding structure 3 located behind the central protruding structure 12, the central protruding structure 12 and the rear protruding structure 3 are connected and used to form a rear cavity with the outer plate of the hood, the connection position of the central protruding structure 12 and the rear protruding structure 3 is a stepped groove structure 8 with a notch facing the outer plate of the hood in the longitudinal section, and the groove bottom 81 of the stepped groove structure 8 gradually increases in width from the middle to the edge in the left-right direction.

[0079] Specifically, the rear protruding structure 3 is partially arranged corresponding to the top plate part 1 and partially arranged corresponding to the side plate part 2, which is arranged at the rear end of the entire inner plate body in the left-right direction, and which is partially protruded upward to a position higher than the central protruding structure 12 in the top plate part 1, the groove bottom 81 of the stepped groove structure 8 is located on the "convex" face 1221 described above or a face lower than the "convex" face 1221, and the groove bottom 81 is higher than the non-protruding part 11 of the top plate part 1 (see Figure 3 ). The groove bottom 81 of the stepped groove structure 8 gradually increases in width from the middle to the edge in the left-right direction, for example, the groove bottom 81 is a symmetrical horn structure in the left-right direction. The part of the rear protruding structure 3 located at the rear end of the side plate part 2 can be bent outward to form a local reinforcing structure, which will not be described in detail here.

[0080] In this way, the stepped groove structure 8 can enhance the rigidity of the rear cavity in the left-right direction, and can improve the dent resistance and leaning resistance performance of the entire hood, and the structure is simple and practical.

[0081] The central protruding structure 12 can be provided with a second opening at the rear end close to the "convex" structure 121, which can reduce the weight to a certain extent and improve the deformation degree of the overall energy-absorbing deformation of the "convex" structure 121.

[0082] In the above embodiment, the rear end of the first reinforcing plate 6 can extend to the rear corner point position of the inner plate body. Thus, the rigidity of the rear end of the hood is enhanced. In the left-right direction, the inner end of the first reinforcing plate 6 can be connected to the edge position of the "convex" face 1221, and the outer end can be connected to the edge plate position of the periphery of the side plate part 2. At this time, the first reinforcing plate 6 can be provided with a reinforcing plate deformation guide structure 62, the position of the reinforcing plate deformation guide structure 62 corresponds to the arrangement of the energy-absorbing deformation guide structure 4, and the functions of the two are consistent, which will not be described in detail here. The first reinforcing plate 6 and the inner plate body can form a first cavity therebetween, the first cavity is arranged along the first transition line, and the first cavity is partially located on the outer side of the side plate part 2 and partially located above the non-protruding part 11.

[0083] In the above embodiment, the weakening hole 42 can be provided with a structure similar to the first support structure 51, for example, the weakening hole 42 at both ends of the concave guide groove 411 is shown as forming a second support structure 421, which will not be described in detail here.

[0084] Another embodiment of the present application provides a vehicle comprising the hood according to the above embodiment.

[0085] Further, the hood comprises the first reinforcing plate 6 and the lock catch reinforcing plate 7, both of which are arranged between the hood inner plate and the hood outer plate, which will not be described in detail here.

[0086] Another embodiment of the present application provides a vehicle comprising the hood according to the above embodiment.

[0087] It should be noted that the present application will be described below by taking the hood inner plate for a vehicle as an example, but it should be understood that it can also be used in other occasions such as airplanes and the like which need to use safety belts without violating the design concept of the present application.

[0088] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0089] In the description of the present application, the description of the terms "embodiment", "one embodiment", "some embodiments", "exemplarily" and "one embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or embodiment are contained in at least one embodiment or embodiment of the present application. In the present application, the illustrative description of the above terms does not necessarily mean the same embodiment or embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or embodiments in a suitable manner.

[0090] The terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0091] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various modifications and changes without departing from the spirit and scope of the present disclosure, and these modifications and changes will fall within the protection scope of the present application.

Claims

1. A cowl inner panel characterized by, The inner panel body comprises a top plate part (1) and side plate parts (2) on both sides of the top plate part (1), and the side plate parts (2) are formed with fender functional areas (21); The top plate part (1) comprises a centrally protruding structure (12) protruding upward, and a plurality of support parts (125) are formed on the centrally protruding structure (12) and used for connecting to a hood outer panel; portions of the inner panel body on both sides of the centrally protruding structure (12) are used for connecting a first reinforcing plate (6) extending in the front-rear direction, and the first reinforcing plate (6) is provided with a hinge mounting area (61); A first recess (111) is arranged at a front end position of the portions of the inner panel body on both sides of the centrally protruding structure (12), the first recess (111) is used for mounting a lock catch or a lock catch reinforcing plate (7), and a front end of the first reinforcing plate (6) extends forward to a rear end close to the first recess (111); The inner panel body is used for surrounding a first cavity with the first reinforcing plate (6), the first cavity is arranged extending along a transition area of the side plate part (2) and the top plate part (1), and a portion of the first cavity is located outside the side plate part (2) and a portion is located above the top plate part (1).

2. The inner panel of claim 1, wherein A plurality of energy-absorbing deformation guide structures (4) are arranged on the inner panel body in the front-rear direction, the energy-absorbing deformation guide structures (4) are used for causing the inner panel body to bend and absorb energy in a predetermined direction at corresponding calibration lines, and the calibration lines corresponding to the energy-absorbing deformation guide structures (4) are located in front of the hinge mounting area (61); The energy-absorbing deformation guide structures (4) comprise guide grooves (41) and / or weakened holes (42).

3. The inner panel of claim 2, wherein Top end portions of the centrally protruding structure (12) are formed with protruding parts (123) at intervals from front to back, at least one lightening hole (124) is formed in each of the protruding parts (123), and edges of the lightening holes (124) form the support parts (125); The guide grooves (41) comprise concave guide grooves (411) and / or convex rib guide grooves (412); The concave guide grooves (411) are formed by boundary areas of the protruding parts (123) different from front to back and the protruding parts (123) together, and the weakened holes (42) are arranged at end positions of the concave guide grooves (411) on the centrally protruding structure (12); The convex rib guide grooves (412) are located on both sides of the centrally protruding structure (12) on the inner panel body, the convex rib guide grooves (412) are arranged corresponding to the lightening holes (124), and the weakened holes (42) are arranged corresponding to regions between the lightening holes (124) and the convex rib guide grooves (412) on the centrally protruding structure (12).

4. The inner panel of claim 3, wherein The top end portion of the central raised structure (12) is in a "convex" structure (121) in a plan view, wherein the small end region and the large end region of the "convex" structure (121) are respectively provided with the protrusions (123), and the small end region is arranged close to the front end relative to the large end region; The "convex" structure (121) is formed with the concave guide groove (411) at the boundary between the small end region and the large end region; In the front-rear direction, the left and right sides of the large end region on the inner plate body are arranged in the front-rear direction with a plurality of the protrusion guide grooves (412) arranged therebetween, and the protrusion guide grooves (412) correspond to the weight-reducing holes (124) of the large end region.

5. The inner panel of claim 4, wherein The large end region is formed with a plurality of sub-regions in the left-right direction, and each of the sub-regions is provided with one or more protrusions (123); The protrusions (123) of at least one of the sub-regions extend to the edges close to the large end region in the front-rear direction; And / or, the protruding contour lines on the left and right sides of at least one of the protrusions (123) are arranged obliquely relative to the front-rear direction and the left-right direction in a plan view; And / or, at least one of the protrusions (123) is formed with a plurality of spaced-apart protruding regions (1231), and each of the protruding regions (1231) is correspondingly provided with the weight-reducing hole (124).

6. The inner panel of claim 1, wherein The area of the inner plate body before the support portion (125) of the central raised structure (12) is used to form a front cavity with the outer plate of the machine cover, and the inner plate body is provided with a first opening (5) at the front cavity and a first support structure (51) is formed at the rear end edge of the first opening (5), and the first support structure (51) is used to extend to the side close to the outer plate of the machine cover and is connected with the outer plate of the machine cover; And / or, the inner plate body further comprises a rear side raised structure (3) located behind the central raised structure (12), and the central raised structure (12) and the rear side raised structure (3) are connected and used to form a rear cavity with the outer plate of the machine cover, and the connection position of the central raised structure (12) and the rear side raised structure (3) is in a stepped groove structure (8) in a longitudinal section, and the groove bottom (81) of the stepped groove structure (8) gradually increases in width from the middle to the edge in the left-right direction.

7. A machine cover characterized by, The machine cover inner plate comprises the machine cover inner plate according to any one of claims 1 to 6.

8. A vehicle characterized by comprising: The machine cover comprises the machine cover according to claim 7.

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