CN220220360U - Brace rod reinforcing plate, back door and automobile - Google Patents

Abstract

The utility model relates to a stay bar reinforcing plate, a back door and an automobile, wherein the stay bar reinforcing plate comprises a plate body, and the plate body is provided with stay bar mounting holes; the plate body extends from the upper part of the back door to the lower part of the back door, a bending section is formed in a bending area in the middle of the back door, and the plate body is attached to the inner plate. According to the utility model, the stay bar reinforcing plate is arranged along the extending direction of the back door from top to bottom, and the bending section is formed in the bending area in the middle of the back door, so that the rigid body and the bending mode in the middle of the back door are improved, and the low-frequency road noise of an automobile in the running process is reduced. And secondly, the stay bar reinforcing plate is attached to the inner plate, so that a large cavity structure is formed between the stay bar reinforcing plate and the outer plate, and the middle rigidity of the back door is enhanced. In addition, the stay bar reinforcing plate is provided with stay bar mounting holes corresponding to stay bars, so that the rigidity and strength of the local mounting positions of the stay bars are enhanced, and the fatigue resistance of the mounting positions of the stay bars is improved.

Description

Brace rod reinforcing plate, back door and automobile

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to a stay bar reinforcing plate, a back door and an automobile.

Background

With the improvement of living standard, the driving experience requirements of common users on automobiles are also higher and higher. The automobile running NVH performance (Noise, vibration, harshness, noise, vibration and harshness) has become one of the most interesting driving experiences for users, and the problem of low-frequency noise becomes more prominent after the new energy automobile lacks the masking effect of engine sound, so that the user experience is more sensitive.

The back door is a very important ring in the automobile opening and closing part structure, when articles are loaded and unloaded in the trunk, the articles are required to be realized through the opening and closing of the back door, the use frequency of the back door is very high in the daily automobile use process, and the automobile back door is used as one of the main contribution systems of low-frequency road noise, so that the structural design is extremely important. The size span between the back door stay bar position and the lock catch position is larger, so that the bending mode of the back door is generally lower, and the low-frequency road noise performance of the automobile is poor.

Disclosure of Invention

The utility model aims to provide a stay bar reinforcing plate to solve the problem that in the prior art, the low-frequency noise performance of an automobile is poor due to lower bending mode and lower rigidity of a back door; second, to provide a back door; and a third object is to provide an automobile.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the stay bar reinforcing plate is arranged between the inner plate and the outer plate of the back door and comprises a plate body, wherein the plate body is provided with stay bar mounting holes; the plate body extends from the upper part of the back door to the lower part of the back door, a bending section is formed in a bending area in the middle of the back door, and the plate body is attached to the inner plate.

According to the technical means, the stay bar reinforcing plate is arranged along the extending direction of the back door from top to bottom, and the bending section is formed in the bending area of the middle part of the back door, so that the rigid body and the bending mode of the middle part of the back door are improved, and the low-frequency road noise of an automobile in the driving process is reduced. Because the stay bar reinforcing plate is attached to the inner plate, a large supporting cavity is formed between the stay bar reinforcing plate and the outer plate, and the middle rigidity of the back door is further improved. Meanwhile, the stay bar reinforcing plate is provided with stay bar mounting holes corresponding to stay bars, so that the rigidity and strength of the local mounting positions of the stay bars are enhanced, and the fatigue resistance of the mounting positions of the stay bars is improved.

Further, the lower end of the plate body is provided with a supporting piece extending from one side of the inner plate to one side of the outer plate, the supporting piece is provided with a supporting table far away from one end of the plate body, and the supporting table is connected with the outer plate.

According to the technical means, the supporting piece can play a supporting role on the outer plate, namely the supporting rod reinforcing plate supports the outer plate to increase the deformation resistance of the bending area of the outer plate, so that the structural strength of the bending area of the back door is improved; the supporting table enables a certain contact area to be formed between the supporting piece and the outer plate, a force transmission path can be increased, the supporting piece is enabled to be dispersed in stress, and then the structural strength between the supporting piece and the outer plate is improved.

Further, the upper part of the plate body is provided with first welding edges positioned on two side edges, the first welding edges are arranged along the extending direction of the plate body, and the first welding edges are connected with the inner plate; wherein, first welding limit is the turn-ups structure.

According to the technical means, the first welding edge is of the flanging structure, so that the contact area of the stay bar reinforcing plate and the inner plate is increased, stress concentration is dispersed, the number of welding spots between the stay bar reinforcing plate and the inner plate can be increased on the basis, the connection quality and the connection stability between the stay bar reinforcing plate and the inner plate are improved, and the mode and the rigidity of the stay bar reinforcing plate and the back door are further improved.

Further, the middle part of the plate body is provided with a second welding edge positioned on the inner side edge, and the second welding edge is respectively connected with the inner plate and the outer plate.

According to the technical means, the second welding edge is connected with the inner plate and the outer plate, so that the connection strength between the inner plate and the outer plate is enhanced, and the structural strength of the middle bending area of the back door is enhanced.

Further, the side of the plate body is provided with a plurality of first welding bosses, at least two first welding bosses are distributed at intervals along the edge of the outer side of the bending section, and a concave part is formed between every two adjacent first welding bosses.

According to the technical means, the contact area between the stay bar reinforcing plate and the inner plate and the number of welding spots are increased through the first welding boss, so that stress concentration can be dispersed, and the connection quality can be improved; the concave parts which are distributed at intervals can be formed between the first welding bosses which are distributed at intervals, so that the first welding bosses which are combined in a concave-convex mode and the concave parts form a structure similar to that of the reinforcing ribs, the structural strength of the support bar reinforcing plate is improved, and the mode and the rigidity of the support bar reinforcing plate and the back door are improved.

Further, the curved section extends at least partially inward of the strut stiffener, the curved section being provided with a lightening hole.

According to the technical means, the plate surface area of the stay bar reinforcing plate is increased by the extending bending section, so that the coverage area of the stay bar reinforcing plate to the back door inner plate is increased, the structural strength of the back door inner plate is increased, and the rigidity and the mode of the back door bending area are increased; the weight reducing holes reduce the solid structure volume of the bending section, and the overall weight of the stay bar reinforcing plate can be reduced, so that the overall weight of the back door is reduced.

Further, the plate body is provided with a plurality of positioning holes along the extending direction at intervals, and positioning bosses are arranged on the periphery of the positioning holes of the bending section.

According to the technical means, the supporting rod reinforcing plate is positioned at the installation position through the positioning hole, so that the supporting rod reinforcing plate is positioned and installed, the installation position is further positioned through the positioning boss, the positioning hole is aligned with the corresponding installation position on the inner plate, and the supporting rod reinforcing plate is convenient to position and install.

Further, the plate body is provided with a buffer block mounting hole, and the buffer block mounting hole is used for mounting a buffer block; and/or the side edge of the plate body is provided with a wire harness hole, and the wire harness hole is used for installing a wire harness.

According to the above technical means, the stay bar reinforcing plate can realize at least one of facilitating installation of the buffer block and facilitating installation of the wire harness.

The utility model provides a back door, includes inner panel and planking, back door width direction's both sides limit is equipped with above-mentioned vaulting pole reinforcing plate, the vaulting pole reinforcing plate is located the inner panel with between the planking.

According to the technical means, the rigidity and the mode of the back door can be improved.

An automobile comprises the back door.

According to the technical means, low-frequency road noise of the automobile can be reduced.

The utility model has the beneficial effects that:

(1) According to the utility model, the rigid body of the bending area in the middle of the back door is improved through the support rod reinforcing plate, so that the bending mode of the back door is improved, and the low-frequency road noise of the automobile in the running process is reduced;

(2) According to the utility model, the stay bar reinforcing plate is attached to the inner plate, so that a larger supporting cavity is formed between the stay bar reinforcing plate and the outer plate, and the middle rigidity of the back door is enhanced through a larger cavity structure;

(3) According to the utility model, the stay bar mounting holes are formed on the stay bar reinforcing plate corresponding to the stay bars, so that the rigidity and strength of the local mounting positions of the stay bars are enhanced, and the fatigue resistance of the mounting positions of the stay bars is improved.

Drawings

FIG. 1 is a schematic view of a strut reinforcement plate structure according to an embodiment of the present application;

FIG. 2 is a schematic view of a back door explosion in an embodiment of the present application;

FIG. 3 is a second schematic view of a brace bar reinforcement plate structure according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of the strut stiffener from the opposite perspective of FIG. 3;

FIG. 5 is a third schematic view of a brace bar reinforcement plate structure in an embodiment of the present application;

FIG. 6 is a schematic view of the strut stiffener from the opposite perspective of FIG. 5;

fig. 7 is a schematic view of the strut reinforcement panel mounted on the inner panel in the embodiment of the present application.

Reference numerals illustrate:

100-plate body, 101-first welding edge, 102-second welding edge, 103 a-first welding boss, 103 b-second welding boss, 104-stay mounting hole, 105-positioning hole, 106-wire harness hole, 107-buffer block mounting hole, 108-lightening hole, 110-bending section, 120-support piece, 121-supporting table, 200-inner plate, 300-outer plate, 400-buffer block and 500-hinge reinforcing plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," "supported," and "supporting" are to be construed broadly, unless otherwise specifically limited. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; 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 of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In this embodiment, referring to fig. 1 and 2, a brace reinforcing plate is provided between an inner plate 200 and an outer plate 300 of a back door of an automobile, the brace reinforcing plate includes a plate body 100, and the plate body 100 is provided with a brace mounting hole 104; the panel body 100 extends from the upper portion of the back door to the lower portion of the back door, a curved section 110 is formed in a curved region in the middle of the back door, and the panel body 100 is attached to the inner panel 200.

Taking the car back door as an example, when the back door is vertically placed, the upper part, the middle part and the lower part of the back door are sequentially arranged from top to bottom, wherein, because the size span between the back door stay bar and the lock catch position is larger, a bending area is designed in the middle part of the back door and is positioned between the upper part of the back door and the lower part of the back door. As shown in fig. 1, the inner side of the stay bar reinforcing plate is a side of the stay bar reinforcing plate close to the installation area of the back door glass window, and the outer side of the stay bar reinforcing plate is a side of the stay bar reinforcing plate far away from the installation area of the back door glass window. Referring to fig. 1, the brace reinforcing plates of the present embodiment are disposed on two sides of the back door, along the extending direction of the sides of the brace reinforcing plates, and penetrate through the middle of the back door, from the upper portion of the back door to the lower portion of the back door, and the bending sections 110 of the brace reinforcing plates are correspondingly mounted on the bending regions of the inner plate 200, so as to improve the rigidity of the middle region of the back door. It will be appreciated that the shape of the panel surface of the stay reinforcement plate is the same as the shape of the inner wall surface of the inner panel 200 so that the stay reinforcement plate is attached to the inner panel 200 so that a larger cavity structure is provided between the outer panel 300 and the inner panel 200, and the cavity structure provides greater rigidity to both side edges of the back door. In order to ensure the strength of the structure of the stay bar reinforcing plate, the stay bar reinforcing plate can be integrally formed by stamping, so that the consistency of the shape of the stay bar reinforcing plate and the shape of the inner wall of the inner plate 200 can be better ensured, and the installation laminating degree between the stay bar reinforcing plate and the inner plate is improved.

In addition, the stay reinforcement plate in the present embodiment may be connected with reinforcement plates of other back doors as an integral structure. Illustratively, the brace reinforcement plate is welded to the hinge reinforcement plate 500 provided at the upper side of the back panel such that the lap joint between the two reinforcement members is continuous in stiffness, improving the back door stiffness and the mode.

In this embodiment, referring to fig. 1 to 7, a support member 120 extending from one side of the inner plate 200 to one side of the outer plate 300 is disposed at the lower end of the strut reinforcement plate body 100, and the support member 120 has a support stand 121 disposed at a side far from the plate body 100, and the support stand 121 is connected to the outer plate 300. The back door bending region is formed with a bending cavity between the inner panel 200 and the outer panel 300, and supports the outer panel 300 through the support 120 to improve rigidity and deformation resistance of the outer panel 300. Specifically, the supporting member 120 may set a corresponding bending structure along with the bending direction of the back door so as to adapt to the bending forms of the back doors of different vehicle types. The shape of the support 120 itself is not particularly limited in this embodiment, and includes, but is not limited to, a frame shape, a plate shape, a belt shape, a column shape, and the like. In order to ensure the structural strength of the supporting member 120, the supporting member 120 is integrally formed on the supporting rod reinforcing plate, and is obtained through twisting, bending and other processing technologies.

The support table 121 has a support table 121 top capable of supporting the outer panel 300, and the support table 121 top is connected to the outer panel 300. The supporting table 121 has a certain area on the table top, so that the contact surface between the supporting table 121 and the outer plate 300 has a certain area, the stress of the supporting table 121 is dispersed, the stress concentration of the supporting piece 120 is avoided, and the supporting strength of the supporting piece 120 is improved. The shape of the support table 121 is not particularly limited, and includes, but is not limited to, rectangular, circular, triangular, body-shaped, or other irregular shape. Illustratively, the tail end of the supporting member 120 of the supporting table 121 is bent, which is convenient for processing and ensures the structural strength of the supporting member 120. In some embodiments, in order to reduce vibration and noise in driving and to increase comfort of the entire vehicle, the inner panel 200 and the outer panel 300 of the rear backboard are provided with an expansion rubber, and the support stand 121 may be connected with the expansion rubber on the outer panel 300, thereby providing support to the outer panel 300 and improving structural strength of the bending region of the outer panel 300.

In this embodiment, referring to fig. 3 to 7, the upper portion of the plate body 100 has first welding edges 101 located at two sides, the first welding edges 101 extend along the extending direction of the plate body 100, and the first welding edges 101 are connected to the inner plate 200; wherein, the first welding edge 101 is a flanging structure. The first welding edge 101 is welded with the inner plate 200, the first welding edge 101 is in a flanging structure, that is to say, the area of the first welding edge 101 is larger than that of the side edge of the first welding edge, the connection area of the first welding edge 101 and the plate body 100 is increased, the connection and reinforcing effects of the support rod reinforcing plate on the inner plate 200 are improved, and the problem that the inner plate 200 is locally damaged due to the fact that the area of the connection surface is too small is avoided. Specifically, the straight portion of the side edge of the plate body 100 is taken as the first welding edge 101, and a plurality of welding spots are arranged on the first welding edge 101 to be welded with the inner plate 200, so that on one hand, the processing difficulty of the first welding edge 101 can be reduced, and on the other hand, the welding difficulty of the first welding edge 101 and the inner plate 200 can be reduced. The outer side edge and the inner side edge of the plate body 100 are respectively provided with a first welding edge 101 so as to be connected with two sides of the inner plate 200; of course, the first welding edges 101 on both sides have the same flanging direction and are flanged toward the outer plate 300 so that the plate body 100 is attached to the inner plate 200.

In this embodiment, referring to fig. 3 to 7, the middle portion of the panel body 100 has a second welding edge 102 located at the inner side, and the second welding edge 102 is connected to the inner panel 200 and the outer panel 300, respectively. The second welding edge 102 is connected with the inner panel 200 and the outer panel 300, which is advantageous in enhancing the connection strength between the inner panel 200 and the outer panel 300 and increasing the structural strength of the middle bending region of the back door. Specifically, the second welding edge 102 is provided with a welding point, and is welded to the inner plate 200 and the outer plate 300. The second welding edge 102 is disposed corresponding to the lower right or lower left corner of the back door window, and the second welding edge 102 is curved to fit into the lower right or lower left corner region of the back door window. Further, the second welding edge 102 is of a flanging structure, so that the welding connection area is increased, and the connection strength is improved.

In this embodiment, referring to fig. 3 to 7, a plurality of first welding bosses 103a are disposed on the side of the plate body 100, at least two first welding bosses 103a are disposed at intervals along the edge of the outer side of the curved section 110, and a recess is formed between adjacent first welding bosses 103 a. The first welding boss 103a is protruded from a side of the plate body 100 facing the inner plate 200, and is welded to the inner plate 200, and may be provided at the upper, lower and middle portions of the strut reinforcement plate. When at least two first welding bosses 103a are arranged along the side edge of the plate body 100, the middle part of each adjacent first welding boss 103a is a concave part relative to the boss, namely a concave part is formed, and continuous wavy side edges are formed between the adjacent concave parts and the boss. Thus, by the above structural layout, the outer side edge of the bending section 110 has a structure similar to a reinforcing rib along the side extending direction thereof, and the structural strength of the outer side edge of the bending section 110 is improved. Since the first welding boss 103a is connected with the inner panel 200, the structural strength of the inner door is improved, and at the same time, the rigidity and bending mode of the bending region of the back door are further improved. The boss shape includes, but is not limited to, a circle, a square, a triangle, and a trapezoid, and the first welding boss 103a may be formed by punching.

Further, referring to fig. 3 to 7, in order to improve the connection strength between the panel surface of the panel body 100 and the inner panel 200, a second welding boss 103b is disposed at the panel surface of the strut reinforcing panel bending section 110, and the second welding boss 103b is welded to the inner wall surface of the inner panel 200. The connection strength of the stay bar reinforcing plate and the inner panel 200 is further reinforced by the second welding boss 103b, thereby improving the strength and bending mode of the back door.

In this embodiment, referring to fig. 3 to 7, the bending section 110 extends at least partially inward of the strut stiffener, and the bending section 110 is provided with a lightening hole 108. That is, at least a portion of the curved section 110 has a width greater than the width of the other plate body portions; preferably, the curved section 110 extends entirely inward such that the overall width of the curved section 110 is greater than the width of the other plate portions. By increasing the panel width of the curved section 110, the area of the curved section 110 that covers the inner panel 200 is increased, and the reinforcing area of the curved section 110 is increased, thereby increasing the structural strength, rigidity, and bending mode of the back door curved area. The lightening holes 108 reduce the solid structure of the bending section 110, reduce the weight of the bending section 110, and accord with the design concept of light weight of the automobile. In some embodiments, the lightening holes 108 may be designed on the flat portions of the curved sections 110 to avoid interference with other positioning and mounting components, and the design amount is set according to practical situations and requirements. Specifically, the curved section 110 extends in a lower left corner region or a lower right corner region of the back door window, and in the lower left corner region or the lower right corner region of the back door window, the curved section 110 and the plate body 100 above the curved section form a corner structure, which is equivalent to providing a reinforcing structure around the lower left corner region or the lower right corner region of the back door window, so that the structural strength of the mounting position of the back door window is improved, and the rigidity and the mode of the back door are further improved.

In this embodiment, referring to fig. 3 to 7, the plate body 100 is provided with a plurality of positioning holes 105 along the extending direction thereof, and positioning bosses are disposed at the outer peripheries of the positioning holes 105 of the bending section 110. The positioning holes 105 are used for positioning and installing the brace reinforcing plate, and are arranged along the extending direction of the plate body 100. When the plate body 100 is in bolted connection with the inner plate 200 through the positioning holes 105, the function from the positioning boss to positioning installation prevents the support bar reinforcing plate from being deviated. Illustratively, the locating boss is disposed around the locating hole 105 in the shape of an annular boss row. Because the width of the bending section 110 is a little bigger, the bending section 110 has a larger area, which provides multiple design space and processing space for the plate body 100, and the positioning hole 105 at the bending section 110 is provided with the positioning protrusion, which can also ensure that the positioning protrusion has a certain structural strength. Specifically, for convenience of processing, the positioning hole 105 with the positioning boss may be formed by punching and then punching.

In this embodiment, referring to fig. 3 to 7, the board body 100 has a buffer block mounting hole 107 and a harness hole 106, wherein the buffer block mounting hole 107 is used for mounting the buffer block 400, the buffer block 400 supports and buffers the middle part of the back door, and specifically, the buffer block mounting hole 107 is disposed on the outer side of the middle part of the board body 100. The wire harness holes 106 are used for installing wire harnesses, so that the wire harnesses can be conveniently installed and combed, and particularly, the wire harness holes 106 are formed in the inner side edge of the plate body 100, so that the wire harnesses can be conveniently hidden.

The present embodiment also provides a back door, including an inner plate 200 and an outer plate 300, wherein the two side edges of the back door in the width direction are provided with the brace reinforcing plates, and the brace reinforcing plates are arranged between the inner plate 200 and the outer plate 300, wherein the width direction of the back door is perpendicular to the height direction. The back door of the embodiment of the application has the beneficial effects of the stay bar reinforcing plate of any one of the schemes, and is not described herein. From the foregoing analysis, the back door of the embodiment of the present application achieves the enhancement of rigidity and mode by the stay reinforcement plate.

The embodiment also provides an automobile, which is provided with the back door and the stay bar reinforcing plate according to any scheme, so that the low-frequency road noise performance of the automobile is improved.

The above embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and changes made by those skilled in the art on the basis of the present utility model are all within the scope of the present utility model.

Claims (10)

1. The stay bar reinforcing plate is arranged between an inner plate (200) and an outer plate (300) of the automobile back door, and is characterized in that: the stay bar reinforcing plate comprises a plate body (100), wherein the plate body (100) is provided with stay bar mounting holes (104); the plate body (100) extends from the upper part of the back door to the lower part of the back door, a bending section (110) is formed in a bending area in the middle of the back door, and the plate body (100) is attached to the inner plate (200).

2. The brace bar reinforcement plate of claim 1 wherein: the support device is characterized in that a support piece (120) extending from one side of the inner plate (200) to one side of the outer plate (300) is arranged at the lower end of the plate body (100), the support piece (120) is provided with a support table (121) arranged at one end far away from the plate body (100), and the support table (121) is connected with the outer plate (300).

3. The brace bar reinforcement plate of claim 1 wherein: the upper part of the plate body (100) is provided with first welding edges (101) positioned on two side edges, the first welding edges (101) are arranged along the extending direction of the plate body (100), and the first welding edges (101) are connected with the inner plate (200); wherein the first welding edge (101) is of a flanging structure.

4. The brace bar reinforcement plate of claim 1 wherein: the middle part of the plate body (100) is provided with a second welding edge (102) positioned at the inner side edge, and the second welding edge (102) is respectively connected with the inner plate (200) and the outer plate (300).

5. The brace bar reinforcement plate of claim 1 wherein: the side of the plate body (100) is provided with a plurality of first welding bosses (103 a), at least two first welding bosses (103 a) are distributed at intervals along the edge of the outer side of the bending section (110), and a concave part is formed between every two adjacent first welding bosses (103 a).

6. The brace bar reinforcement plate of any of claims 1 to 5 wherein: the curved section (110) extends at least partially inside the strut reinforcement plate, the curved section (110) being provided with a lightening hole (108).

7. The brace bar reinforcement plate of claim 6 wherein: the plate body (100) is provided with a plurality of positioning holes (105) along the extending direction at intervals, and positioning bosses are arranged on the periphery of the positioning holes (105) of the bending section (110).

8. The brace bar reinforcement plate of claim 6 wherein: the plate body (100) is provided with a buffer block mounting hole (107) and a wire harness hole (106), wherein the buffer block mounting hole (107) is used for mounting the buffer block (400), and the wire harness hole (106) is used for mounting the wire harness.

9. The utility model provides a back door, includes inner panel (200) and planking (300), its characterized in that: the stay reinforcement plate according to any one of claims 1 to 8 is provided at both side edges in the width direction of the back door, and is provided between the inner panel (200) and the outer panel (300).

10. The automobile is characterized in that: comprising a back door as claimed in claim 9.