CN221023878U - Engine cover inner plate, engine cover assembly and automobile - Google Patents

Abstract

The utility model provides an engine cover inner plate, an engine cover assembly and an automobile, and relates to the technical field of automobile parts. The inner plate of the engine cover has both anti-dent performance and pedestrian protection performance.

Description

Engine cover inner plate, engine cover assembly and automobile

Technical Field

The utility model relates to the technical field of automobile parts, in particular to an engine hood inner plate, an engine hood and an automobile.

Background

At present, the bonnet assembly includes bonnet inner panel and bonnet planking, is equipped with bearing structure on the bonnet inner panel, and bearing structure's circumference edge is equipped with the round usually and glues the groove, through gluing in glueing the inslot to be connected bonnet inner panel and bonnet planking, realize utilizing the bonnet inner panel to support the bonnet planking, in order to guarantee that the bonnet planking can not take place great deformation. Therefore, the hood inner panel is generally required to have a certain rigidity.

However, with the development of automobile technology, pedestrian protection is an important index for evaluating the performance of the hood assembly. In order to meet the requirement of pedestrian safety protection, the traditional method mainly comprises the step of shortening the length of a glue groove, for example, a half circle of glue groove or a large half circle of glue groove is formed in the circumferential edge of a supporting structure on an inner plate of the engine cover, but the contact area between the inner plate of the engine cover and an outer plate of the engine cover can be reduced in the mode, and the supporting rigidity of the inner plate of the engine cover to the outer plate of the engine cover is greatly reduced.

Disclosure of utility model

The utility model aims to solve the technical problem that the existing engine cover inner plate cannot simultaneously give consideration to supporting rigidity and pedestrian collision protection.

In a first aspect, the present utility model proposes an inner hood panel, including an inner hood panel body, the inner hood panel body is configured to be disposed on a side of an outer hood panel facing into a vehicle, multiple portions of the inner hood panel body protrude toward a side close to the outer hood panel to form multiple support structures, a cavity is formed between each of the support structures, two support structures disposed adjacently along a calibration direction are a pair of support structures, a boss is formed between two support structures in at least one pair of support structures by protruding toward the outer hood panel side, the cavity is blocked by the boss, a first glue groove is disposed at an end of at least one support structure in the pair of support structures facing toward the outer hood panel, the first glue groove is a curved glue groove, and a second glue groove is disposed on the boss, and the inner hood panel body is configured to be connected with the outer hood panel through the first glue groove and the second glue groove.

Compared with the prior art, the engine cover inner plate has at least the following advantages:

The inner plate body protrudes to one side of the outer plate of the engine cover to form a plurality of supporting structures, a bent first glue groove such as a C shape or a U shape can be arranged on the supporting structures, the supporting structures are adhered and fixed with the outer plate of the engine cover through the first glue groove, the arrangement length of the glue groove of the supporting structures is reduced, the contact area between the inner plate body and the outer plate of the engine cover can be reduced to a certain extent, and the safety performance of pedestrian protection is improved; besides, a concave cavity which is communicated with each other is formed between each supporting structure, the inner plate body part between the two supporting structures in at least one supporting structure pair protrudes towards one side of the outer plate of the engine cover to form a boss, the concave cavity which is communicated with each other is disconnected by the boss, the supporting rigidity of the inner plate body to the outer plate of the engine cover can be reduced to a certain extent, the injury value of pedestrians during collision is reduced, and the pedestrian protection score is improved. The boss is connected with the outer plate of the engine cover through the second glue groove on the boss, so that the connection support of the inner plate body to the outer plate of the engine cover can be ensured, and the anti-concave performance of the inner plate body is improved. The reinforcement and weakening effects in all aspects are mutually overlapped, so that the inner plate body is finally enabled to simultaneously give consideration to the dent resistance and the pedestrian protection performance.

Optionally, the two supporting structures in the pair of supporting structures are a first supporting structure and a second supporting structure respectively, an end face, facing the outer plate of the engine cover, of the first supporting structure is a hexagonal end face, the hexagonal end face is provided with the first glue groove corresponding to five sides of the hexagonal end face, and the boss is arranged between the remaining side of the hexagonal end face and the second supporting structure.

Optionally, the boss extends along the calibration direction, the second glue groove is consistent with the extension direction of the boss, and one end of the second glue groove points to the first support structure between two ends of the first glue groove, and the other end of the second glue groove points to the center of the second support structure.

Optionally, the boss and the second glue groove are all arranged along the front-back direction of the automobile in an extending mode.

Optionally, the both ends of inner panel body towards the automobile front and back direction are equipped with preceding supporting leg and back supporting leg respectively, the inner panel body is used for through preceding supporting leg and back supporting leg with the bonnet planking is connected.

Optionally, a first opening and a second opening are respectively arranged at two ends of the inner plate body, which face the front-back direction of the automobile, the first opening is positioned around the front supporting leg, and the second opening is positioned around the rear supporting leg.

Optionally, two ends of the inner plate body facing the left and right directions of the automobile are provided with curved surface structures, the bending degree of the curved surface structures is larger than that of the two ends of the inner plate body facing the front and rear directions of the automobile, and the curved surface structures are provided with third holes; and/or the supporting structure is provided with a hollowed-out hole penetrating along the up-down direction of the automobile;

and/or the circumferential edge of the inner plate body is provided with a buffer block mounting hole;

And/or one end of the inner plate body facing the rear of the automobile is provided with a hinge mounting hole, and one end of the inner plate body facing the front of the automobile is provided with a lock mounting hole.

Optionally, this bonnet inner panel still includes the support, the one side of support be used for with the bonnet planking is towards the preceding one end connection of car, the peripheral edge of support be equipped with to the landing leg of bending of inner panel body one side, the support passes through the landing leg of bending with the inner panel body coupling, just the support extends to bonnet lock department along the car left and right directions.

In a second aspect, the present utility model provides a hood assembly, including a hood outer panel and the hood inner panel described above. The hood assembly has the same advantages as the hood inner panel described above over the prior art, and the description will not be repeated.

In a third aspect, the present utility model provides an automobile, including the above-mentioned hood assembly. The advantages of the automobile over the prior art are the same as those of the hood assembly described above, and the description thereof will not be repeated.

Drawings

FIG. 1 is a schematic view of a hood assembly according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of a first view of an inner hood panel according to an embodiment of the present utility model;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

FIG. 5 is a schematic view of a second view of an inner hood panel according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another construction of a hood inner panel according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a bracket according to an embodiment of the present utility model;

FIG. 8 is a schematic view showing the distribution of selected points of action on a hood outer panel according to an embodiment of the present utility model;

FIG. 9 is a force-displacement graph of an outer hood panel according to an embodiment of the present utility model;

FIG. 10 is a stress distribution diagram of an inner hood panel when a force is applied at P1 of an outer hood panel according to an embodiment of the present utility model;

FIG. 11 is a stress distribution diagram of an inner hood panel when a force is applied at P2 of an outer hood panel according to an embodiment of the present utility model;

FIG. 12 is a stress distribution diagram of an inner hood panel when a force is applied at P3 of an outer hood panel according to an embodiment of the present utility model;

Fig. 13 is a stress distribution diagram of the hood inner panel when a force is applied at P4 of the hood outer panel according to the embodiment of the present utility model.

Reference numerals illustrate:

1. An inner plate body; 101. a support structure; 1011. a first glue groove; 1012. a hollowed hole; 102. a cavity; 103. a boss; 1031. a second glue groove; 104. front support legs; 105. rear support legs; 106. a first opening; 107. a second opening; 108. a third opening; 109. a buffer block mounting hole; 110. a hinge mounting hole; 111. a lock mounting hole; 2. a hood outer panel; 3. a bracket; 31. bending the supporting legs; 32. holes.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "coupled," and "mated" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In addition, in the description of the present utility model, it should be noted that terms such as "upper", "lower", "front", "rear", etc. in the embodiments indicate terms of orientation, and only for simplifying the positional relationship of the description based on the drawings of the specification, it does not represent that the elements and devices etc. referred to must be operated according to the operations and methods and configurations defined in the specific orientation and limitation of the present utility model, and such orientation terms do not constitute limitations of the present utility model.

An XYZ coordinate system is established herein, wherein the X-axis represents the front of the car, the X-axis forward represents the rear of the car, the Y-axis reverse represents the left-right direction of the car, the Y-axis forward represents the right-hand direction of the car, and the Z-axis up-down direction of the car, wherein the Z-axis forward represents the upper direction of the car, and the Z-axis reverse represents the lower direction of the car. It should also be noted that the foregoing X-axis, Y-axis, and Z-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented or configured in a particular orientation and operation and therefore should not be construed as limiting the present utility model.

As shown in fig. 1-5, an embodiment of the present utility model provides a hood inner panel, including an inner panel body 1, where the inner panel body 1 is configured to be disposed on a side of a hood outer panel 2 facing into a vehicle, multiple positions of the inner panel body 1 protrude toward a side close to the hood outer panel 2 to form multiple support structures 101, a cavity 102 is formed between each of the support structures 101, two support structures 101 disposed adjacently along a calibration direction are support structure pairs, a portion of the inner panel body 1 between at least two adjacent support structures 101 protrudes toward the side of the hood outer panel 2 to form a boss 103, the boss 103 blocks the cavity 102, at least one of the support structures 101 in the support structure pairs is provided with a first glue groove 1011 toward one end of the hood outer panel 2, the first glue groove 1011 is a curved glue groove, a second glue groove 1031 is disposed on the boss 103, the second glue groove 1 points between two ends of the first glue groove 1011, and the inner panel body 1 is configured to connect with the hood outer panel 1032 through the first glue groove 1011 and the second glue groove 1031.

Specifically, when the middle area of the inner plate body 1 is subjected to a downward external force, deformation is easy to occur, the concave stiffness is weak, and the support structure 101 can be arranged in the middle area of the inner plate body 1. The middle part of the inner plate body 1 can be protruded upwards to form a supporting structure 101, and the middle part of the inner plate body 1 can be arranged in a hollowed-out mode, and the supporting structure 101 is arranged at the hollowed-out part. The support structures 101 can be arranged at intervals, and the inner plate body 1 is connected with the outer plate 2 of the engine hood through the support structures 101 to ensure stress stability.

It should be noted that, the cavities 102 that are mutually communicated are formed between the supporting structures 101, and only the boss 103 may be provided between two supporting structures 101 in one supporting structure pair, or the boss 103 may be provided between two supporting structures 101 in any supporting structure pair, where the boss 103 breaks the whole communicated cavities 102. In one supporting structure pair, a half circle or three quarters of circles of first glue grooves 1011 may be provided on the upper end surface of one or two supporting structures 101 along the circumferential edge, that is, the first glue grooves 1011 may be similar to a U-shape or a C-shape, two ends of the first glue grooves 1011 are not communicated, the boss 103 is disposed between the two supporting structures 101, the second glue grooves 1031 may be straight, the second glue grooves 1031 are disposed along the extending direction of the boss 103, and the first glue grooves 1011 and the second glue grooves 1031 may be used for gluing.

In this embodiment, the inner plate body 1 protrudes to one side of the hood outer plate 2 to form a plurality of support structures 101, a curved first glue groove 1011 such as a C-shape or a U-shape is provided on the support structures 101, the support structures 101 are adhered and fixed with the hood outer plate 2 through the first glue groove 1011, the set length of the glue groove of the support structures 101 is reduced, the contact area between the inner plate body 1 and the hood outer plate 2 can be reduced to a certain extent, and the safety performance of pedestrian protection is improved; besides, the mutually communicated concave cavities 102 are formed between the supporting structures 101, the inner plate body 1 between the two supporting structures 101 in at least one supporting structure pair is partially protruded to one side of the engine hood outer plate 2 to form the boss 103, the mutually communicated concave cavities 102 are disconnected by the boss 103, the supporting rigidity of the inner plate body 1 to the engine hood outer plate 2 can be reduced to a certain extent, the injury value of pedestrians during collision is reduced, and the pedestrian protection score is improved. The boss 103 is connected with the outer hood panel 2 through the second adhesive groove 1031 thereon, so that the connection support of the inner panel body 1 to the outer hood panel 2 can be ensured, and the anti-dent performance of the inner panel body 1 is improved. The reinforcement and weakening actions in each aspect are overlapped with each other, so that the inner plate body 1 is finally enabled to simultaneously give consideration to both the dent resistance and the pedestrian protection performance.

The hood outer panel 2 is arranged in bilateral symmetry, and four points are selected on the right side of the hood outer panel 2 on the basis of the hood inner panel according to the embodiment: as shown in fig. 8, forces are applied to the points P1, P2, P3, and P4 respectively, and in combination with fig. 9, the force-displacement curve of the hood outer panel, that is, the stress-deformation relation curve of the hood outer panel 2, we can see that the actual stress curves of the points P1, P2, P3, and P4 are all above the ideal standard curve, that is, the actual deformation of the hood inner panel when being stressed is smaller, in other words, the supporting rigidity of the hood inner panel on the hood outer panel is larger, and the hood outer panel 2 can bear larger external force.

When an acting force is applied to the position P1 on the hood outer panel 2, as can be seen from a stress distribution diagram (fig. 10) of the hood inner panel, the stress at the position corresponding to the position P1 on the hood inner panel is the largest, and the shape formed by the stress largest region is basically consistent with the shape of the glue groove at the position, that is, the glue groove arrangement form in the embodiment can well disperse the acting force transmitted by the hood outer panel 2, and the inner panel body 1 can provide enough support for the hood outer panel 2. The application of forces to the hood outer panel 2 at points P2, P3 and P4 is similar to that described above with reference to fig. 11 to 13, and the principle is not repeated.

As shown in fig. 3 to 4, alternatively, two supporting structures 101 in the pair of supporting structures are respectively a first supporting structure and a second supporting structure, an end surface of the first supporting structure facing the outer panel 2 of the engine cover is a hexagonal end surface, the hexagonal end surface is provided with the first glue groove 1011 corresponding to five sides thereof, and the boss 103 is arranged between the remaining sides of the hexagonal end surface and the second supporting structure.

Specifically, an end surface of the first support structure facing the hood outer panel 2, that is, an upper end surface of the first support structure, may be in various shapes such as pentagon, quadrangle, circle, etc., and here, the upper end surface is set to be hexagonal, connection stability is better, and an upper end surface of the second support structure may be hexagonal, or trapezoid formed after the hexagon is cut. The hexagonal end face of the first supporting structure is provided with two transverse edges which are oppositely arranged in parallel in the front and the back, the two transverse edges extend along the direction shown by the Y axis, a boss 103 is arranged between one transverse edge and the adjacent second supporting structure, and a second glue groove 1031 which is approximately arranged along the direction shown by the X axis is arranged on the boss 103. In some other embodiments, no boss 103 may be provided between a portion of the support structure and an adjacent support structure.

Optionally, the boss 103 extends along the calibration direction, the second glue groove 1031 is consistent with the extending direction of the boss 103, one end of the second glue groove 1031 points to a position between two ends of the first glue groove 1011 on the first support structure, and the other end of the second glue groove 1031 points to the center of the second support structure.

In this embodiment, one end of the second glue groove 1031 points between two ends of the first glue groove 1011 on the first support structure 101 in the pair of support structures, and the other end points to the center of the second support structure 101 in the pair of support structures, so that the overall arrangement of the glue grooves is more uniform, and the distribution of the supporting force of the inner plate body 1 to the hood outer plate 2 is more uniform.

As shown in fig. 2 and 5, alternatively, the boss 103 and the second glue groove 1031 may be disposed to extend in the front-rear direction of the automobile.

In this embodiment, a whole circle of the first glue groove 1011 on the existing supporting structure is set to be in a bent form such as a half circle or a larger half circle, the connection line of two ends of the first glue groove can be along the direction shown by the Y axis, then a vertical second glue groove 1031 is set between two ends of the first glue groove, so as to replace the glue groove set transversely, and ensure the connection rigidity between the inner plate body 1 and the outer plate 2 of the engine hood. Meanwhile, the inner plate body 1 and the concave cavity 102 are larger in size along the left and right directions of the automobile, collision force is mainly applied to the left and right sides of the inner plate body 1 when a pedestrian collides, the calibration direction can be the front and rear directions of the automobile, the boss 103 extends along the direction shown by the X axis so as to partition the concave cavity 102 in the left and right directions of the automobile, namely, the boss 103 is arranged along the main stress direction perpendicular to the inner plate body 1 or is inconsistent with the main stress direction of the inner plate body 1, and when the inner plate of the engine cover is subjected to the collision force of the pedestrian, the boss 103 cannot effectively transmit force, so that the rigidity of the inner plate of the engine cover in the left and right directions of the automobile is weakened, and the pedestrian protection performance is improved.

In other embodiments, the calibration direction may be a direction from the front left to the rear right of the automobile, or a direction from the front right to the rear left of the automobile, that is, the second glue groove 1031 and the boss 103 may be disposed obliquely with respect to the X axis.

As shown in fig. 4, optionally, the support structure 101 is provided with a hollowed-out hole 1012 penetrating along the up-down direction of the automobile.

In this embodiment, the hollowed holes 1012 may be hexagonal holes, and by providing the hollowed holes 1012 on the supporting structure, the supporting rigidity of the inner plate body 1 to the outer plate 2 of the engine hood can be reduced, so as to improve the safety requirement of pedestrian protection.

As shown in fig. 3 and 5, alternatively, the front support leg 104 and the rear support leg 105 are provided at both ends of the inner panel body 1 in the front-rear direction, respectively, and the inner panel body 1 is configured to be connected to the hood outer panel 2 through the front support leg 104 and the rear support leg 105.

In this embodiment, two front support legs 104 and two rear support legs 105 may be provided, and the front support legs 104 and the rear support legs 105 may be integrally formed with the inner panel body 1. The inner plate body 1 is smaller in the bending curvature of the two ends of the front and rear direction of the automobile, namely the molding surface is gentle, the pedestrian collision injury value is lower, but the anti-dent performance is poor, the front supporting leg 104 and the rear supporting leg 105 are arranged at the front and rear ends of the inner plate body 1 so as to be connected with the outer plate 2 of the engine hood, when the outer plate 2 of the engine hood is subjected to external pressing force, the force can be well transmitted to the inner plate of the engine hood, the deformation of the inner plate of the engine hood is reduced, and the anti-dent performance of the corresponding position of the inner plate body 1 is improved.

As shown in fig. 3 and 5, alternatively, the two ends of the inner plate body 1 facing the front-rear direction of the vehicle are respectively provided with a first opening 106 and a second opening 107, the first opening 106 is located around the front support leg 104, and the second opening 107 is located around the rear support leg 105.

In this embodiment, each supporting structure 101 may be connected to form a T-shaped structure with a large rear end and a small front end. The first opening 106 and the second opening 107 may be rectangular holes, and according to the rigidity requirements of the inner plate body 1 at the front end and the rear end of the automobile, the number and the positions of the first opening 106 and the second opening 107 may be flexibly set, when a pedestrian collides, the head contacts the outer plate 2 of the engine hood, and the generated impact force can deform the inner plate body 1 at the opening position, so that a certain impact energy is absorbed, and the collision injury to the head of the pedestrian is reduced. Through the structural design, the outer plate 2 of the engine cover can provide certain supporting force when suffering from smaller impact force, can deform and collapse when suffering from larger impact force, absorbs impact energy, and realizes the simultaneous satisfaction of the concave resistance of the inner plate of the engine cover and the pedestrian protection performance.

As shown in fig. 3 and 5, alternatively, two ends of the inner plate body 1 facing the left and right directions of the automobile are provided with curved surface structures, the bending degree of the curved surface structures is greater than that of two ends of the inner plate body 1 facing the front and rear directions of the automobile, and the curved surface structures are provided with third openings 108.

In this embodiment, the inner hood panel and the outer hood panel 2 are mounted in a matched manner, the left and right sides of the outer hood panel 2 are generally curved surfaces, the bending curvature is large, that is, the bending degree of the left and right ends of the inner panel body 1 is large, the bending degree of the front and rear ends is small, the concave stiffness is large, the third openings 108 are formed in the curved surface structures of the left and right sides of the inner panel body 1, impact energy generated during pedestrian collision can be absorbed by using collision deformation of the third openings 108, and pedestrian protection is realized.

As shown in fig. 3 and 5, optionally, a buffer block mounting hole 109 is provided at the circumferential edge of the inner plate body 1;

And/or, the end of the inner plate body 1 facing the rear of the automobile is provided with a hinge mounting hole 110, and the end of the inner plate body 1 facing the front of the automobile is provided with a lock mounting hole 111.

In this embodiment, the buffer block mounting hole 109 may be located at the front end, the left end and/or the right end of the inner panel body 1, and the buffer block mounting hole 109 may be used to mount a buffer block, so that the buffer block is used to prevent the buffer block from being damaged due to collision deformation when the hood assembly is closed.

The hinge mounting hole 110 at the rear end of the inner plate body 1 can be used for mounting a hinge, the inner plate body 1 is hinged with a vehicle body through the hinge, the engine cover assembly can be turned up and down around a Y axis relative to the vehicle body to be opened, the lock mounting hole 111 at the front end of the inner plate body 1 can be used for mounting a cover lock, and the engine cover assembly is locked on the vehicle body through the cover lock after being closed.

As shown in fig. 6 to 7, optionally, the inner hood panel further includes a bracket 3, one surface of the bracket 3 is used for being connected with one end of the outer hood panel 2 facing the front of the automobile, a bending leg 31 bending towards one side of the inner hood panel body 1 is arranged at the circumferential edge of the bracket 3, the bracket 3 is connected with the inner hood panel body 1 through the bending leg 31, and the bracket 3 extends to a hood lock along the left-right direction of the automobile.

In this embodiment, two brackets 3 may be symmetrically disposed left and right, the cross-sectional dimensions of one end of each bracket 3 close to each other are smaller, the cross-sectional dimensions of one end of each bracket 3 far away from each other are larger, and under the condition that space layout allows, the contact area between the brackets 3 and the inner plate body 1 and the hood outer plate 2 is increased as much as possible, and the supporting rigidity of the inner plate body 1 to the hood outer plate 2 is increased.

The support 3 has a larger design size along the Y direction and can extend to the cover lock to ensure the reinforcement effect of the support 3 on the periphery of the cover lock. The support 3 is bent to one side of the inner plate body 1 to form a bending supporting leg 31, so that the strong rigidity of the support 3 body is improved, the support is conveniently connected with the inner plate body 1, and an accommodating space can be formed between the support and the inner plate body 1, so that a cover lock is conveniently installed in the accommodating space.

The bracket 3 is provided with a plurality of holes 32, so that the relevant part of the cover lock can conveniently pass through the bracket 3 to be matched with a lock hole on the vehicle body, and the weight can be reduced under the condition of ensuring the strength. The upper surface of the bracket 3 can be adhered and fixed with the engine cover outer plate 2, and the bending support leg 31 of the bracket 3 is welded and fixed with the inner plate body 1.

In another embodiment, the present utility model provides a hood assembly, which includes a hood outer panel 2 and the hood inner panel described above. The hood assembly has the same advantages as the hood inner panel described above over the prior art, and the description will not be repeated.

Another embodiment of the present utility model provides an automobile including the above-mentioned hood assembly. The advantages of the automobile over the prior art are the same as those of the hood assembly described above, and the description thereof will not be repeated.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The utility model provides a bonnet inner panel, its characterized in that, includes inner panel body (1), inner panel body (1) are used for setting up in one side towards the car of bonnet planking (2), the many departments of inner panel body (1) are close to bonnet planking (2) one side protrusion is in order to form a plurality of bearing structure (101), each form cavity (102) between bearing structure (101), make along two bearing structure (101) that the demarcation direction set up adjacently are bearing structure pair, at least one bearing structure pair two inner panel body (1) part between bearing structure (101) are to protruding to bonnet planking (2) one side forms boss (103), boss (103) will cavity (102) cut off, at least one bearing structure (101) in the bearing structure pair is towards one end of bonnet planking (2) is equipped with first glue groove (1011), be equipped with second glue groove (1031) on boss (103), be used for inner panel (1011) and first glue groove (1031) and connecting.

2. The hood inner panel according to claim 1, characterized in that two of the support structures (101) in the pair of support structures are made to be a first support structure and a second support structure, respectively, an end face of the first support structure facing the hood outer panel (2) is a hexagonal end face, the hexagonal end face is provided with the first glue groove (1011) corresponding to five sides thereof, and the boss (103) is provided between the remaining sides of the hexagonal end face and the second support structure.

3. The hood inner panel according to claim 2, wherein the boss (103) extends in the calibration direction, the second glue groove (1031) coincides with the extending direction of the boss (103), and one end of the second glue groove (1031) is directed between both ends of the first glue groove (1011) on the first support structure, and the other end of the second glue groove (1031) is directed to the center of the second support structure.

4. The hood inner panel according to claim 3, wherein the boss (103) and the second glue groove (1031) are both provided extending in the vehicle front-rear direction.

5. The hood inner panel according to claim 1, wherein both ends of the inner panel body (1) toward the front-rear direction are provided with a front support leg (104) and a rear support leg (105), respectively, the inner panel body (1) being configured to be connected with the hood outer panel (2) through the front support leg (104) and the rear support leg (105).

6. The hood inner panel according to claim 5, wherein both ends of the inner panel body (1) toward the front-rear direction are provided with a first opening (106) and a second opening (107), respectively, the first opening (106) being located around the front support leg (104), and the second opening (107) being located around the rear support leg (105).

7. The hood inner panel according to claim 1, wherein both ends of the inner panel body (1) facing the left-right direction of the automobile are provided with curved surface structures, the degree of curvature of which is greater than the degree of curvature of both ends of the inner panel body (1) facing the front-rear direction of the automobile, and the curved surface structures are provided with third openings (108);

And/or, the supporting structure (101) is provided with a hollowed-out hole (1012) penetrating along the up-down direction of the automobile;

And/or, a buffer block mounting hole (109) is formed in the circumferential edge of the inner plate body (1);

And/or one end of the inner plate body (1) facing the rear of the automobile is provided with a hinge mounting hole (110), and one end of the inner plate body (1) facing the front of the automobile is provided with a lock mounting hole (111).

8. The hood inner panel according to claim 1, further comprising a bracket (3), one face of the bracket (3) being used for being connected with one end of the hood outer panel (2) toward the front of the automobile, a bending leg (31) bending toward one side of the inner panel body (1) being provided at the circumferential edge of the bracket (3), the bracket (3) being connected with the inner panel body (1) through the bending leg (31), and the bracket (3) extending to a hood lock position in the left-right direction of the automobile.

9. A hood assembly comprising a hood outer panel (2) and a hood inner panel according to any one of claims 1 to 8.

10. An automobile comprising the hood assembly of claim 9.