CN218805149U - Back door and vehicle - Google Patents

Abstract

The utility model discloses a back door and a vehicle with the back door, wherein the back door comprises an outer plate, an inner plate and a reinforcing plate component, and the inner plate is laminated on the inner side of the outer plate; the reinforcing plate component is stacked between the inner plate and the outer plate and is fixedly connected with the outer plate and the inner plate respectively. According to the embodiment of the utility model provides a back door, through the reinforcing plate subassembly in the back door, can improve the structural strength of back door to can improve the shock resistance of back door.

Description

Back door and vehicle

Technical Field

The utility model relates to a vehicle manufacturing technical field especially relates to a back door and vehicle that has this back door.

Background

In the related art, the structural strength of the back door of the vehicle is low, resulting in low impact resistance of the vehicle, and thus people or objects in the vehicle cannot be well protected at the time of collision, and thus, it is required to improve the impact resistance of the back door of the vehicle.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, an object of the present invention is to provide a back door, which can improve the structural strength of the back door through the reinforcing plate assembly in the back door, thereby improving the impact resistance of the back door.

Another object of the present invention is to provide a vehicle, which includes the above-mentioned back door.

According to the back door in the embodiment of the present invention, the back door includes an outer plate, an inner plate, and a reinforcing plate assembly, wherein the inner plate is laminated on the inner side of the outer plate; the reinforcing plate component is stacked between the inner plate and the outer plate and is fixedly connected with the outer plate and the inner plate respectively.

According to the embodiment of the utility model provides a back door, through the reinforcing plate subassembly in the back door, can improve the structural strength of back door to can improve the shock resistance of back door.

In addition, according to the above embodiment of the present invention, the back door may further have the following additional technical features:

optionally, the reinforcing plate assembly includes a bottom support plate and a hinge reinforcing plate, and the bottom support plate extends in the left-right direction and is connected to the outer plate in a stacked manner; the hinge reinforcing plate is connected with the bottom supporting plate, the hinge reinforcing plate is connected with the left side and the right side of the bottom supporting plate, and the hinge reinforcing plate is arranged between the inner plate and the outer plate and is respectively connected with the inner plate and the outer plate.

Optionally, a first mounting opening is formed in the outer plate, the first mounting opening extends in the left-right direction, a part of the bottom support plate is embedded into the first mounting opening, the upper edge of the bottom support plate is connected to the side, deviating from the inner plate, of the upper edge of the first mounting opening in an insulating stacked manner, and the lower edge of the bottom support plate is connected to the side, deviating from the inner plate, of the lower edge of the first mounting opening in an insulating stacked manner.

Optionally, the reinforcing plate assembly further comprises an upper supporting plate, wherein the upper supporting plate is stacked between the outer plate and the inner plate and connected with the upper edges of the outer plate and the bottom supporting plate.

Optionally, go up the backup pad and be the rectangular form that extends along left right direction, just go up to be equipped with on the backup pad and control a plurality of convex parts of interval arrangement, the convex part sets to the court and deviates from the direction of bottom plate is protruding, just the convex part is in go up the bellied difference in height in the width direction of backup pad, it is equipped with range upon range of connection to go up both ends about the backup pad the flanging structure of inner panel.

Optionally, the inner plate has a first step portion, a first connecting portion, a second step portion, a second connecting portion and a third step portion which are arranged in a direction from the periphery to the center of the inner plate and are sequentially connected, and distances between the first step portion, the second step portion and the third step portion and the outer plate are gradually increased; the hinge reinforcing plate comprises a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, the first connecting plate is connected with the first connecting portion in a stacked mode, the second connecting plate is connected with the second step portion in a stacked mode, the third connecting plate is connected with the second connecting portion in a stacked mode, and the fourth connecting plate is connected with the third step portion in a stacked mode.

Optionally, the hinge reinforcing plate further includes a fifth connecting plate, the fifth connecting plate is connected to the fourth connecting plate, extends in a direction away from the inner plate, and has a flanged end portion connected to the outer plate in a stacked manner.

Optionally, the hinge reinforcing plate further comprises a sixth connecting plate, the sixth connecting plate is connected with the fourth connecting plate, extends in the direction away from the inner plate, and is flanged at the end part and is connected with the end part of the bottom supporting plate in a stacking manner.

Optionally, the hinge reinforcing plate further includes a seventh reinforcing plate, the seventh reinforcing plate is connected to the fourth connecting plate and extends in a direction away from the third connecting plate, and the seventh reinforcing plate is connected to the inner plate in a stacked manner.

Optionally, the reinforcing plate assembly includes a lower support plate, and the lower support plate is stacked between the inner plate and the outer plate, extends in the left-right direction, and is stacked and connected to the outer plate, the inner plate, and the bottom bracket plate, respectively.

Optionally, the lower support plate comprises a first plate part, a second plate part and a third plate part, and the first plate part is connected with the inner plate in a laminated manner; the second plate part is connected with the upper edge of the first plate part and extends towards the direction far away from the inner plate, and the end part of the second plate part is flanged and connected with the bottom supporting plate in a stacked manner; the third plate portion is connected with the lower edge of the first plate portion and extends in the direction away from the inner plate, and the end portion of the third plate portion is flanged and connected with the outer plate in a stacked mode.

According to the embodiment of the utility model provides a vehicle, vehicle includes back door among the above-mentioned.

According to the embodiment of the utility model provides an in the vehicle, the aforementioned back door is used to the vehicle, through the reinforcing plate subassembly in the back door, can improve the structural strength of back door to can improve the intensity of vehicle.

Drawings

Fig. 1 is a schematic view of a back door in some embodiments of the invention.

Fig. 2 is a schematic view of an outer plate in some embodiments of the invention.

Fig. 3 is a schematic view of an inner panel in some embodiments of the invention.

Fig. 4 is a partial block diagram of a back door in accordance with some embodiments of the present invention.

Fig. 5 is a schematic view of a bottom bracket plate in some embodiments of the present invention.

Fig. 6 is a schematic view of a hinge stiffener in some embodiments of the present invention.

Fig. 7 is a schematic view of an upper support plate in some embodiments of the present invention.

Fig. 8 is a schematic view of a lower support plate in some embodiments of the invention.

Reference numerals:

the back door 100, the outer panel 10, the first mounting opening 11, the inner panel 20, the first step portion 21, the first connecting portion 22, the second step portion 23, the second connecting portion 24, the third step portion 25, the reinforcing panel assembly 30, the bottom bracket 31, the hinge reinforcing panel 32, the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, the fourth connecting plate 324, the fifth connecting plate 325, the sixth connecting plate 326, the seventh reinforcing plate 327, the upper supporting plate 33, the convex portion 331, the plate portion 332, the burring structure 333, the lower supporting plate 34, the first plate portion 341, the second plate portion 342, and the third plate portion 343.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The utility model provides a back door 100 and vehicle that has this back door 100 through the reinforcing plate subassembly 30 in back door 100, can improve back door 100's structural strength to can improve back door 100's shock resistance.

As shown in fig. 1 to 8, according to the tailgate 100 of the embodiment of the present invention, the tailgate 100 may include an outer panel 10, an inner panel 20, and a reinforcement panel assembly 30, wherein the inner panel 20 may be stacked on an inner side of the outer panel 10, the reinforcement panel assembly 30 may be stacked between the inner panel 20 and the outer panel 10, and the reinforcement panels may be fixedly connected to the outer panel 10 and the inner panel 20, respectively. Accordingly, the structural strength of the back door 100 may be improved by the reinforcement plate assembly 30, and thus the impact resistance of the back door 100 may be improved.

Specifically, the outer panel 10 and the inner panel 20 are stacked, and an installation cavity is formed between the outer panel 10 and the inner panel 20, and at this time, the reinforcement panel assembly 30 may be disposed in the installation cavity between the outer panel 10 and the inner panel 20, so as to improve the structural strength of the back door 100, wherein the reinforcement panel assembly 30 may be stacked and fixedly connected with the inner panel 20 and the outer panel 10, respectively, so that the reinforcement panel assembly 30 may support the inner panel 20 and the outer panel 10, respectively, so as to improve the structural strength of the back door 100, and improve the impact resistance of the back door 100.

Therefore, according to the back door 100 of the embodiment of the present invention, the structural strength of the back door 100 can be improved through the reinforcement plate assembly 30 in the back door 100, so that the impact resistance of the back door 100 can be improved.

As shown in fig. 1, 4, 5 and 6, in some embodiments of the present invention, the reinforcing plate assembly 30 may include a bottom bracket plate 31 and a hinge reinforcing plate 32, and the bottom bracket plate 31 may extend in the left-right direction and be connected to the outer plate 10 in a stacked manner; the hinge reinforcing plate 32 is connected to the bottom bracket plate 31, and the hinge reinforcing plates 32 are connected to both left and right sides of the bottom bracket plate 31, and the hinge reinforcing plates 32 may be disposed between the inner plate 20 and the outer plate 10 and connected to the inner plate 20 and the outer plate 10, respectively. Therefore, the structural strength of the back door 100 may be improved, and thus the impact resistance of the back door 100 may be improved.

Specifically, a hinge reinforcement plate 32 is provided in the installation cavity of the outer panel 10 and the inner panel 20, and the hinge reinforcement plate 32 may be respectively connected with the inner panel 20 and the outer panel 10 to support the inner panel 20 and the outer panel 10, so that the structural strength of the back door 100 may be improved.

In addition, a bottom support plate 31 is stacked and connected to the inner side of the outer panel 10, and hinge reinforcing plates 32 may be respectively connected to both sides of the bottom support plate 31, so that when the bottom support plate 31 supports the outer panel 10, the outer panel 10 may be uniformly stressed, thereby ensuring the structural stability of the back door 100.

Secondly, a single hinge reinforcement plate 32 may be provided in the installation cavity to connect both left and right sides of the bottom bracket plate 31, so that support of the outer panel 10 can be achieved. Alternatively, two hinge reinforcing plates 32 may be provided in the installation cavity to be coupled to left and right sides of the bottom plate 31, respectively, so that the support of the outer panel 10 can be achieved. Of course, a plurality of hinge reinforcing plates 32, for example, three, four, etc., may be disposed in the mounting cavity, which is not a limitation to the scope of the present invention.

As shown in fig. 1, 2 and 5, in some embodiments of the present invention, the outer plate 10 may be provided with a first mounting opening 11, the first mounting opening 11 extends along a left-right direction, a portion of the bottom plate 31 may be embedded into the first mounting opening 11, an upper edge of the bottom plate 31 is connected to a side of an upper edge of the first mounting opening 11 away from the inner plate 20, and a lower edge of the bottom plate 31 is connected to a side of a lower edge of the first mounting opening 11 away from the inner plate 20. Therefore, the structural strength of the back door 100 may be improved, and thus the impact resistance of the back door 100 may be improved.

Specifically, the bottom bracket 31 may be moved from the outer side of the outer panel 10 to the inner side of the outer panel 10 to fit a portion of the bottom bracket 31 into the first mounting opening 11, and a portion of the bottom bracket 31 fitted into the first mounting opening 11 may be connected to the hinge reinforcement plate 32, and the bottom bracket 31 may be forced toward the inner side of the outer panel 10 by the connection of the bottom bracket 31 to the hinge reinforcement plate 32, and meanwhile, the upper edge and the lower edge of the bottom bracket 31 may be respectively connected to the side of the upper edge and the lower edge of the first mounting opening 11 away from the inner panel 20 in a stacked manner, so that the bottom bracket 31 may apply a force toward the inner side of the outer panel 10 to the outer panel 10 when the hinge reinforcement plate 32 is connected to the bottom bracket 31, so that the inner panel 20 and the outer panel 10 are more closely stacked, and the hinge reinforcement plate 32 may also be respectively connected to the inner panel 20 and the outer panel 10, thereby providing structural strength of the back door 100 to improve the impact resistance of the back door 100.

As shown in fig. 1, 3, 4 and 7, in some embodiments of the present invention, the reinforced plate assembly 30 may further include an upper support plate 33, and the upper support plate 33 may be stacked between the outer plate 10 and the inner plate 20 and connected to upper edges of the outer plate 10 and the bottom bracket plate 31. Therefore, the structural strength of the back door 100 may be improved, and thus the impact resistance of the back door 100 may be improved.

In connection with the foregoing embodiment, the upper support plate 33 may be screw-coupled with the upper edges of the outer panel 10 and the bottom bracket 31.

Specifically, an installation cavity is provided between the outer panel 10 and the inner panel 20, and the upper support plate 33 may be disposed in the installation cavity and stacked with the outer panel 10 and the inner panel 20, respectively, to support the outer panel 10 and the inner panel 20, so that the structural strength of the back door 100 may be improved, and the impact resistance of the back door 100 may be improved.

As shown in fig. 1, 3, 4 and 7, in some embodiments of the present invention, the upper supporting plate 33 is a long strip extending in the left and right directions, and a plurality of convex portions 331 are arranged on the upper supporting plate 33 at left and right intervals, the convex portions 331 are arranged to be convex in the direction away from the bottom plate 31, the convex portions 331 are different in height in the width direction of the upper supporting plate 33, and the left and right ends of the upper supporting plate 33 are provided with the flange structures 333 for connecting the inner plates 20 in a stacked manner. Thereby, the structural strength of the back door 100 can be improved, and the impact resistance of the back door 100 can be improved.

Specifically, the upper support plate 33 may include a plurality of protruding portions 331 and a plurality of plate portions 332, wherein the plurality of plate portions 332 may be laminated on the outer panel 10, and the plurality of protruding portions 331 may be laminated on the inner panel 20, so that the upper support plate 33 may be laminated between the outer panel 10 and the inner panel 20, whereby the structural strength of the back door 100 may be improved. In addition, the height of the projection 331 projecting in the width direction of the upper support plate 33 is different, and the structural strength of the projection 331 can be improved, and the structural strength of the back door 100 can be improved.

Next, the plurality of protrusions 331 and the burring structures 333 are connected to the inner panel 20 in a stacked manner, and the plurality of plate portions 332 are connected to the outer panel 10 in a stacked manner, so that the contact area between the upper support plate 33 and the inner panel 20 and the outer panel 10 can be increased, the upper support plate 33 is uniformly stressed, and the structural stability of the back door 100 is ensured.

As shown in fig. 3, 4 and 6, in some embodiments of the present invention, the inner panel 20 has a first step portion 21, a first connecting portion 22, a second step portion 23, a second connecting portion 24 and a third step portion 25 which are arranged from the periphery to the center of the inner panel 20, and the first step portion 21, the first connecting portion 22, the second step portion 23, the second connecting portion 24 and the third step portion 25 which are connected in sequence can improve the bending resistance of the inner panel 20, and realize the rigidity enhancement of the inner panel 20, and the distances between the first step portion 21, the second step portion 23 and the third step portion 25 and the outer panel 10 are gradually increased, in other words, the inner panel 20 can be protruded away from the outer panel 10 in the direction from the periphery to the center, so as to construct an installation cavity on the inner panel 20, wherein the reinforcement panel assembly 30 can be installed in the installation cavity to support the outer panel 10 and the inner panel 20 respectively, so that the structural strength of the back door 100 can be improved, and the impact resistance of the back door 100 can be improved.

Further, the hinge reinforcing plate 32 may include a first connecting plate 321, a second connecting plate 322, a third connecting plate 323, and a fourth connecting plate 324, where the first connecting plate 321 is connected to the first connecting portion 22 in a stacked manner, the second connecting plate 322 is connected to the second step portion 23 in a stacked manner, the third connecting plate 323 is connected to the second connecting portion 24 in a stacked manner, and the fourth connecting plate 324 is connected to the third step portion 25 in a stacked manner, so as to increase a contact area between the hinge reinforcing plate 32 and the inner plate 20, and improve a supporting effect of the hinge reinforcing plate 32 on the inner plate 20, thereby improving a structural strength of the back door 100.

In addition, the first coupling plates 321 and the first coupling portions 22 may be arc-shaped plate-shaped to improve structural rigidity of the inner panel 20 in various directions, so that impact resistance of the back door 100 may be improved. And/or, the second connection plate 322 and the second connection portion 24 may be arc-shaped plate-shaped to improve structural rigidity of the inner panel 20 in various directions, so that impact resistance of the back door 100 may be improved. And/or, the third connecting plate 323 and the third connecting portion may have an arc-shaped plate shape to improve structural rigidity of the inner panel 20 in various directions, so that impact resistance of the back door 100 may be improved.

Secondly, the first connecting plate 321, the second connecting plate 322, the third connecting plate 323 and the fourth connecting plate 324 may be respectively matched with the first connecting portion 22, the second connecting portion 24, the third connecting portion and the fourth connecting portion in structure, so as to increase the contact area between the hinge reinforcing plate 32 and the inner plate 20, improve the connection stability between the hinge reinforcing plate 32 and the inner plate 20, and enhance the structural strength of the back door 100. And a plurality of lightening holes may be provided on at least one of the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, and the fourth connecting plate 324 to lighten the weight of the hinge reinforcing plate 32 and improve the traveling performance of the vehicle. At least one of the first connecting plate 321, the second connecting plate 322, the third connecting plate 323 and the fourth connecting plate 324 may be provided with a connecting hole, and the hinge reinforcing plate 32 may be fixedly connected to the inner plate 20 through the connecting hole, so as to improve the connection stability between the hinge reinforcing plate 32 and the inner plate 20 and realize the reinforcement of the structural strength of the back door 100.

As shown in fig. 6, in some embodiments of the present invention, the hinge reinforcing plate 32 may further include a fifth connecting plate 325, and the fifth connecting plate 325 may be connected to the fourth connecting plate 324 and extend in a direction away from the inner panel 20, and the end portion is turned over and connected to the outer panel 10 in a stacked manner to be supported between the inner panel 20 and the outer panel 10, so that the structural strength of the back door 100 may be improved.

Specifically, the fifth connecting plate 325 may be supported between the outer plate 10 and the inner plate 20 to improve the structural strength of the back door 100, and in addition, a flange structurally adaptive to the outer plate 10 is provided at an end of the fifth connecting plate 325, and the flange may increase a contact area between the fifth connecting plate 325 and the outer plate 10 to improve connection stability between the fifth connecting plate 325 and the outer plate 10, and may further provide a protruding structure on the fifth connecting plate 325 to improve structural rigidity of the fifth connecting plate 325 itself, thereby preventing the fifth connecting plate 325 from being bent due to insufficient rigidity, or a reinforcing rib may be provided on the flange at the end of the fifth connecting plate 325, thereby improving the structural strength at the end of the fifth connecting plate 325, and finally realizing improvement of the structural strength of the back door 100.

Of course, a plurality of fifth connection plates 325 may be provided to be supported between the inner panel 20 and the outer panel 10, thereby achieving an improvement in the structural strength of the back door 100.

Further, the hinge reinforcing plate 32 may further include a sixth connecting plate 326, and the sixth connecting plate 326 may be connected to the fourth connecting plate 324 and extend in a direction away from the inner panel 20, and the end portion thereof is flanged and connected to the end portion of the bottom bracket 31 in a stacked manner so as to be supported between the inner panel 20 and the outer panel 10, thereby enhancing the structural strength of the back door 100.

Specifically, the sixth connecting plate 326 may be supported between the outer panel 10 and the inner panel 20 to improve the structural strength of the back door 100, and in addition, a flange adapted to the structure of the outer panel 10 is disposed at an end of the sixth connecting plate 326, and the flange may increase a contact area between the sixth connecting plate 326 and the outer panel 10 to improve a connection stability between the sixth connecting plate 326 and the outer panel 10, and a protrusion structure may be disposed on the sixth connecting plate 326 to improve the structural rigidity of the sixth connecting plate 326 itself, thereby preventing the sixth connecting plate 326 from bending due to insufficient rigidity, or a reinforcing rib may be disposed on the flange at the end of the sixth connecting plate 326, thereby improving the structural strength at the end of the sixth connecting plate 326, and finally realizing the improvement of the structural strength of the back door 100.

Further, a coupling hole may be provided in a flange at an end of the sixth coupling plate 326, and the sixth coupling plate 326 may be screw-coupled to the outer panel 10 through the coupling hole to improve coupling strength between the hinge reinforcing plate 32 and the outer panel 10, thereby improving structural strength of the back door 100.

Of course, a plurality of sixth connection plates 326 may be provided to be supported between the inner panel 20 and the outer panel 10, thereby achieving an improvement in the structural strength of the back door 100.

Still further, the hinge reinforcing plate 32 further includes a seventh reinforcing plate 327, the seventh reinforcing plate 327 may be connected to the fourth connecting plate 324 and extend in a direction away from the third connecting plate 323, and the seventh reinforcing plate 327 is connected to the inner plate 20 in a stacked manner, so that a contact area between the hinge reinforcing plate 32 and the inner plate 20 may be increased, and thus, connection stability between the hinge reinforcing plate 32 and the inner plate 20 may be improved.

As shown in fig. 4 and 8, in some embodiments of the present invention, the reinforcing plate assembly 30 includes a lower supporting plate 34, and the lower supporting plate 34 is stacked between the inner plate 20 and the outer plate 10, extends in the left-right direction, and is connected to the outer plate 10, the inner plate 20, and the bottom bracket 31 in a stacked manner, respectively, to improve the structural strength of the back door 100, so that the impact resistance of the back door 100 can be improved.

Further, the lower support plate 34 may include a first plate portion 341, a second plate portion 342, and a third plate portion 343, the second plate portion 342 may be connected to an upper edge of the first plate portion 341, and the third plate portion 343 may be connected to a lower edge of the first plate portion 341, so that the lower support plate 34 forms a "V" -like structure, so as to support the inner plate 20 and the outer plate 10 by the lower support plate 34, and improve the structural strength of the back door 100.

Specifically, the first plate portion 341 is connected to the inner panel 20 in a stacked manner, and the first plate portion 341 may be adapted to the structure of the inner panel 20, so as to improve the connection stability of the first plate portion 341 and the inner panel 20, and to improve the structural strength of the back door 100.

In addition, the second plate portion 342 may be connected to the upper edge of the first plate portion 341 and extend in a direction away from the inner panel 20, and an end portion of the second plate portion 342 is flanged and connected to the bottom bracket 31 in a stacked manner, in other words, the second plate portion 342 may be supported between the inner panel 20 and the bottom bracket 31 to improve the structural strength of the back door 100, and a flange may be provided at an end portion of the second plate portion 342 to increase a contact area between the second plate portion 342 and the bottom bracket 31 to improve connection stability between the second plate portion 342 and the bottom bracket 31, and a lightening hole may be provided on the second plate portion 342 to lighten the weight of the second plate portion 342 to improve the traveling performance of the vehicle. The flange may further have a coupling hole through which the flange of the second plate portion 342 may be screw-coupled to the lower edge of the first mounting hole 11 to improve the coupling stability of the lower support plate 34 and the bottom bracket plate 31, so that the structural strength of the back door 100 may be improved.

Similarly, the third plate portion 343 is connected to the lower edge of the first plate portion 341 and extends in a direction away from the inner panel 20, and the end of the third plate portion 343 is hemmed and connected to the outer panel 10 in a stacked manner. In other words, the third plate portion 343 may be supported between the inner panel 20 and the bottom bracket 31 to improve the structural strength of the back door 100, and a flange may be provided at an end of the third plate portion 343, the flange may increase a contact area between the third plate portion 343 and the outer panel 10 to improve connection stability between the third plate portion 343 and the outer panel 10, a lightening hole may be further provided on the third plate portion 343 to reduce the weight of the third plate portion 343 and improve traveling performance of the vehicle, a reinforcing rib may be further provided on the flange, the structural strength of the flange of the third plate portion 343 may be improved by the reinforcing rib, and bending of the flange is avoided, thereby improving the structural strength of the back door 100.

As shown in fig. 1 to 8, according to the vehicle of the embodiment of the present invention, the vehicle includes the tailgate 100 in the above embodiment, and the vehicle uses the tailgate 100, and the structural strength of the tailgate 100 can be improved by the reinforcing plate assembly 30 in the tailgate 100, so that the strength of the vehicle can be improved.

Specifically, the reinforcing plate assembly 30 includes an upper supporting plate 33, a lower supporting plate 34, a hinge reinforcing plate 32 and a bottom bracket plate 31, wherein an upper edge and a lower edge of the bottom bracket plate 31 may be respectively overlapped with an upper edge and a lower edge of the outer panel 10, and a portion of the bottom bracket plate 31 may be embedded into the first mounting hole 11 of the outer panel 10, and two hinge reinforcing plates 32 are provided in the mounting cavity, and may be supported between the inner panel 20 and the outer panel 10 to improve the structural strength of the back door 100, and the two hinge reinforcing plates 32 may be respectively connected to the left and right sides of the bottom bracket plate 31 to improve the structural stability of the back door 100.

The first step portion 21, the first connecting portion 22, the second step portion 23, the second connecting portion 24 and the third step portion 25 are sequentially arranged on the inner panel 20 from the periphery to the center of the inner panel 20 to improve the structural rigidity of the inner panel 20, and the distances between the first step portion 21, the second step portion 23 and the third step portion 25 and the outer panel 10 are gradually increased to form an installation cavity between the outer panel 10 and the inner panel 20, so that the reinforcing panel assembly 30 is arranged in the installation cavity to support the inner panel 20 and the outer panel 10, and the structural strength of the back door 100 is improved.

The hinge reinforcing plate 32 is further provided with a first connecting plate 321, a second connecting plate 322, a third connecting plate 323 and a fourth connecting plate 324, which can be respectively connected with the first connecting portion 22, the second step portion 23, the second connecting portion 24 and the third step portion 25 in a stacked manner, so as to increase the contact area between the hinge reinforcing plate 32 and the inner plate 20 and improve the structural stability of the back door 100. In addition, at least one of the first connecting plate 321, the second connecting plate 322, the third connecting plate 323, the first connecting portion 22, the second stepped portion 23, and the second connecting portion 24 may be provided in a curved plate shape to improve structural rigidity of the inner panel 20 in various directions, which may improve impact resistance of the back door 100.

In addition, an upper support plate 33 is further provided in the mounting cavity, the upper support plate 33 is supported between the outer plate 10 and the inner plate 20 in a laminated manner, wherein a plurality of plate portions 332 and a plurality of convex portions 331 are provided on the upper support plate 33, and the plurality of plate portions 332 and the plurality of convex portions 331 are alternately provided in the left-right direction, the plurality of convex portions 331 are provided on the inner plate 20 in a laminated manner, and the plurality of convex portions 331 are provided on the outer plate 10 in a laminated manner, in other words, the upper support plate 33 is supported between the outer plate 10 and the inner plate 20 in a laminated manner by the plurality of convex portions 331 and the plurality of plate portions 332, thereby achieving an improvement in structural strength of the back door 100, and in addition, burring structures 333 are provided at both left and right ends of the upper support plate 33, and the burring structures 333 are capable of improving a contact area between the upper support plate 33 and the inner plate 20, thereby improving connection stability between the upper support plate 33 and the inner plate 20.

Secondly, a lower support plate 34 is further provided in the installation cavity to support the inner panel 20 and the outer panel 10, so that the structural strength of the back door 100 can be improved; the lower support plate 34 includes a first plate portion 341, a second plate portion 342, and a third plate portion 343, wherein the first plate portion 341 may be laminated and coupled to the inner panel 20, the second plate portion 342 may be laminated and coupled to the bottom bracket 31, and the third plate portion 343 may be laminated and coupled to the outer panel 10, thereby achieving an improvement in structural strength of the back door 100.

In some embodiments of the present invention, the support system of the tailgate 100 may be divided into a left hinge stiffener 32, a right hinge stiffener 32, a tail upper stiffener (i.e., an upper support plate 33), a tail lower stiffener (i.e., a lower support plate 34), a tailgate outer panel 10 (i.e., an outer panel 10), a tailgate inner panel 20 (i.e., an inner panel 20), a tail bottom plate 31 (i.e., a bottom plate 31), etc. to be integrally connected through the outer panel 10 and the inner panel 20.

The hinge reinforcement plate 32 has six functions: region one (i.e., first link plate 321) is used to increase the angular stiffness of the tailgate assembly, region two (i.e., fourth link plate 324) is used to increase the hinge mounting point stiffness, region three (i.e., fifth link plate 325) is used to increase the dent resistance stiffness of the outer panel 10, region four (i.e., seventh link plate) is used to increase the local stiffness of the inner panel 20, and region five (i.e., sixth link plate 326) is used to increase the tail wing assembly mounting point stiffness; the torsional rigidity and the lateral rigidity of the integral lifting back door 100 assembly of the hinge reinforcing plate 32 are about 8.5 percent;

the lower buttress plate 34 shares two functions: area one (i.e., first link plate 321) provides enhanced outer panel 10 dent resistance, and area two (i.e., fourth link plate 324) provides enhanced tail assembly mount stiffness, with a lift value of about 30% -45%.

The upper support plate 33 functions as: the rigidity of the mounting point of the tail wing assembly is improved, and the torsional rigidity of the back door assembly is enhanced by about 5 percent;

the above structural members are connected in a screwing mode, a welding mode and the like, the rigidity is mutually supported and mutually improved, a plurality of functions and a mutual cooperation mode are realized through the reinforcing plate assembly 30, the purpose of reducing the number and the size of the structural members is achieved, the effects of few members, multiple functions and high strength are finally realized, and the system can obviously improve the rigidity of key hard point mounting points of the back door 100 assembly, the rigidity of the outer plate 10, the torsional rigidity of the back door assembly and the lateral rigidity of the back door assembly. The supporting system is a supporting reinforcing system which is integrated by one multifunctional piece and pieces which are connected with each other and supported, and the purposes of reducing parts, realizing light weight, high precision and high strength are achieved.

In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A back door, comprising:

an outer panel (10);

an inner panel (20), wherein the inner panel (20) is laminated on the inner side of the outer panel (10);

and the reinforcing plate component (30) is laminated between the inner plate (20) and the outer plate (10), and the reinforcing plate component (30) is fixedly connected with the outer plate (10) and the inner plate (20) respectively.

2. A tailgate according to claim 1, characterized in that the stiffening plate assembly (30) comprises:

the bottom supporting plate (31), the said bottom supporting plate (31) extends along the left and right direction, and laminate and connect with said planking (10);

the hinge reinforcing plate (32), the hinge reinforcing plate (32) with the bottom plate (31) links to each other, just the left and right sides of bottom plate (31) all is connected with hinge reinforcing plate (32), hinge reinforcing plate (32) are located inner panel (20) with between planking (10), and respectively with inner panel (20) with planking (10) link to each other.

3. A tailgate according to claim 2, characterized in that the outer panel (10) is provided with a first mounting opening (11), that the first mounting opening (11) extends in a left-right direction, that a part of the bottom bracket (31) is embedded in the first mounting opening (11), that an upper insulating layer of the bottom bracket (31) is connected to a side of an upper edge of the first mounting opening (11) facing away from the inner panel (20), and that a lower insulating layer of the bottom bracket (31) is connected to a side of a lower edge of the first mounting opening (11) facing away from the inner panel (20).

4. A tailgate according to claim 2, characterized in that the stiffening plate assembly (30) further comprises:

an upper supporting plate (33), wherein the upper supporting plate (33) is stacked between the outer plate (10) and the inner plate (20) and is connected with the upper edges of the outer plate (10) and the bottom supporting plate (31).

5. The back door according to claim 4, wherein the upper support plate (33) is formed in an elongated shape extending in the left-right direction, and a plurality of protrusions (331) are arranged on the upper support plate (33) at left-right intervals, the protrusions (331) are provided to protrude in a direction away from the bottom bracket plate (31), and the protrusions (331) have different heights protruding in the width direction of the upper support plate (33), and the left and right ends of the upper support plate (33) are provided with burring structures (333) for laminating and connecting the inner panel (20).

6. A back door according to claim 2, characterized in that the inner panel (20) has a first step (21), a first connection (22), a second step (23), a second connection (24) and a third step (25) arranged in the direction from the periphery to the center of the inner panel (20) and connected in sequence, and the distances between the first step (21), the second step (23) and the third step (25) and the outer panel (10) are gradually increased;

the hinge reinforcing plate (32) comprises a first connecting plate (321), a second connecting plate (322), a third connecting plate (323) and a fourth connecting plate (324), the first connecting plate (321) is connected with the first connecting portion (22) in a stacked mode, the second connecting plate (322) is connected with the second step portion (23) in a stacked mode, the third connecting plate (323) is connected with the second connecting portion (24) in a stacked mode, and the fourth connecting plate (324) is connected with the third step portion (25) in a stacked mode.

7. A back door according to claim 6, wherein the hinge reinforcement plate (32) further comprises a fifth web (325), the fifth web (325) being connected to the fourth web (324) and extending away from the inner panel (20) and being end-turned and being in laminated connection with the outer panel (10);

and/or the hinge reinforcing plate (32) further comprises a sixth connecting plate (326), the sixth connecting plate (326) is connected with the fourth connecting plate (324), extends towards the direction away from the inner plate (20), and is flanged at the end part and is connected with the end part of the bottom supporting plate (31) in a stacking way;

and/or the hinge reinforcing plate (32) further comprises a seventh reinforcing plate (327), the seventh reinforcing plate (327) is connected with the fourth connecting plate (324) and extends in a direction away from the third connecting plate (323), and the seventh reinforcing plate (327) is connected with the inner plate (20) in a stacking mode.

8. A tailgate according to claim 2, characterized in that the stiffening plate assembly (30) comprises:

and a lower support plate (34), wherein the lower support plate (34) is laminated between the inner plate (20) and the outer plate (10), extends in the left-right direction, and is respectively connected with the outer plate (10), the inner plate (20) and the bottom bracket plate (31) in a laminated manner.

9. The back door according to claim 8, wherein the lower support panel (34) comprises:

a first plate portion (341), wherein the first plate portion (341) is connected to the inner panel (20) in a stacked manner;

the second plate part (342), the second plate part (342) is connected with the upper edge of the first plate part (341) and extends towards the direction far away from the inner plate (20), and the end part of the second plate part (342) is flanged and connected with the bottom supporting plate (31) in a laminated manner;

and the third plate part (343), the third plate part (343) is connected with the lower edge of the first plate part (341), extends towards the direction far away from the inner plate (20), and the end part of the third plate part (343) is flanged and connected with the outer plate (10) in a laminated manner.

10. A vehicle comprising a back door according to any of claims 1-9.

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