CN218577872U

CN218577872U - Back door inner plate assembly and vehicle

Info

Publication number: CN218577872U
Application number: CN202222854475.XU
Authority: CN
Inventors: 赵云成
Original assignee: Shanghai Jusheng Technology Co Ltd
Current assignee: Shanghai Jusheng Technology Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-07
Anticipated expiration: 2032-10-27

Abstract

The utility model provides a back of body door inner panel assembly and vehicle, this back of body door inner panel assembly include the back of body door inner panel and set up first reinforcing plate and second reinforcing plate on the back of body door inner panel, and first reinforcing plate laminating is connected on last back of body door plant and stand, forms between second reinforcing plate and lower back of body door plant and the stand and has side direction open-ended die cavity. This back of body door inner panel assembly strengthens the rigidity of the different positions of back of the body door inner panel through two independent reinforcing plates, forms the die cavity additional strengthening simultaneously between reinforcing plate and the lower back of the body door board and has further improved the structural strength of back of the body door inner panel, has improved the anti-bending ability of back of the body door inner panel from this, effectively promotes the whole modal performance of back of the body door.

Description

Back door inner plate assembly and vehicle

Technical Field

The utility model relates to an automobile parts technical field, concretely relates to back of body door inner panel assembly and vehicle.

Background

At present, a backdoor inner plate assembly structure in the automobile industry is a large-size integral piece and is mainly formed by adopting a stamping processing technology, but the backdoor inner plate assembly structure has the defects of large integral size, complex modeling structure, high manufacturing mould cost, heavy weight, difficult expansion and transformation of a vehicle model, even reopening of a mould and the like, so that the backdoor inner plate assembly structure becomes a part with large development difficulty of an automobile covering part. During the running process of the vehicle, the back door inner plate assembly structure is easy to damage or deform at the position where the stress is concentrated due to resonance.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a back of body door inner panel assembly and vehicle has improved the structural strength of back of body door inner panel and the anti bending ability of back of body door inner panel, effectively promotes the whole modal performance of back of body door.

In a first aspect, an embodiment of the present invention provides a backdoor inner panel assembly, the backdoor inner panel assembly includes:

the back door inner plate comprises an upper back door plate, a lower back door plate and a stand column for connecting the upper back door plate and the lower back door plate;

one end of the first reinforcing plate is arranged on the upper back door plate, and the other end of the first reinforcing plate is arranged on the upright post;

one end of the second reinforcing plate is arranged on the lower back door plate, and the other end of the second reinforcing plate is arranged on the upright post;

and a cavity with a lateral opening is formed among the second reinforcing plate, the lower back door plate and the upright post.

Further, a lateral opening of the cavity is formed between the lower edge of the second reinforcing plate and the lower back door plate.

Further, the second reinforcing plate comprises a first reinforcing section, a second reinforcing section and a third reinforcing section which are connected with each other, the first reinforcing section and the second reinforcing section are arranged oppositely, the third reinforcing section is perpendicular to the first reinforcing section and the second reinforcing section, the first reinforcing section is connected with the upright column in a longitudinal attaching mode, the second reinforcing section is connected with the lower back door plate to form the cavity, and the third reinforcing section is connected with the lower back door plate in a transverse attaching mode.

Further, the first reinforcing section comprises a first groove which is concave downwards, the third reinforcing section comprises a second groove which is concave downwards, the second reinforcing section comprises a protruding part which is convex upwards, the first groove is in transition connection with the protruding part longitudinally, and the second groove is in transition connection with the protruding part transversely.

Further, the second reinforcing plate comprises a first flange, a second flange and a third flange, the first flange is connected to the outer edge of the first groove and the outer edge of the protruding portion, the second flange is connected to the inner edge of the first groove and the upper edge of the second groove, and the third flange is connected to the lower edge of the second groove and the inner edge of the protruding portion.

Further, the second reinforcing plate further comprises a fourth flanging, and the fourth flanging is connected with the third flanging and extends towards one side of the lower back door plate.

Further, a first mounting hole is formed in the second groove.

Further, the first reinforcing plate comprises a transverse reinforcing section and a longitudinal reinforcing section which are connected to form an inverted L-shaped structure.

Further, the first reinforcing plate comprises a third groove which is installed in a matched mode, and a fifth flanging and a sixth flanging which are respectively connected to two side edges of the top of the third groove, and a second installing hole is formed in the third groove located in the transverse reinforcing section.

In a second aspect, embodiments of the present invention provide a vehicle including a tailgate inner panel assembly according to the first aspect.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is an exploded view of a back door inner panel assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first reinforcing plate according to an embodiment of the present invention;

fig. 3 is a top view of a first stiffener according to an embodiment of the present invention;

fig. 4 is a top view of a second stiffener according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second reinforcing plate according to an embodiment of the present invention;

FIG. 6 is a longitudinal partial cross-sectional view of a second reinforcement panel in connection with a back door inner panel in accordance with an embodiment of the present invention;

fig. 7 is a transverse partial cross-sectional view of a second reinforcement panel in connection with a back door inner panel in accordance with an embodiment of the present invention.

Description of the drawings reference numbers:

1-a back door inner panel; 11-upper back door panel; 12-lower back door panel; 13-upright column; 2-a first stiffener; 21-a transverse reinforcement section; 22-a longitudinal reinforcement section; 23-a third groove; 24-a fifth flanging; 25-sixth flanging; 26-a second mounting hole; 3-a second stiffener; 31-a cavity; 311-a lateral opening; 32-a first reinforcement section; 321-a first groove; 33-a second reinforcement section; 331-a projection; 34-a third reinforcement section; 341-second groove; 342-a first mounting hole; 35-a first flange; 36-a second flange; 37-third flanging; 38-fourth cuff.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, being fixedly connected, releasably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Fig. 1 to 7 are schematic structural views of the inner back panel assembly of the present embodiment. The back door inner plate assembly comprises a back door inner plate 1, a first reinforcing plate 2 and a second reinforcing plate 3, as shown in fig. 1. First reinforcing plate 2 and second reinforcing plate 3 are connected respectively and have the different positions that can concentrate in backdoor inner panel 1, improve the problem that can concentrate in the strain of two positions from this, increase backdoor inner panel 1's structural strength, improve backdoor inner panel 1's anti buckling performance.

As shown in fig. 1, the back door inner panel 1 includes an upper back door panel 11, a lower back door panel 12, and pillars 13, and the pillars 13 connect the ends of the upper back door panel 11 and the lower back door panel 12. The upper back door panel 11, the lower back door panel 12 and the pillar 13 are connected to form a light transmission hole for installing a windshield. Wherein, first reinforcing plate 2 sets up on last back of the body door board 11 and stand 13, and second reinforcing plate 3 sets up under on back of the body door board 12 and stand 13 for the position of bending transition has obtained the enhancement between last back of the body door board 11, lower back of the body door board 12 and the stand 13, and the impaired condition appears in the position that can avoid stress concentration. Meanwhile, the first reinforcing plate 2 and the second reinforcing plate 3 are simple in structure and convenient to process, and production of the backdoor inner plate assembly is facilitated.

In this embodiment, one end of the first reinforcing plate 2 is attached to the upper back door plate 11, and the other end is attached to the pillar 13, as shown in fig. 1. The first reinforcing plate 2 adopts a process method of conformal fitting welding assembly, so that the structure of the joint is reinforced.

Referring to fig. 2 and 3, the first reinforcing plate 2 includes a transverse reinforcing segment 21 and a longitudinal reinforcing segment 22 connected to form an inverted "L" shaped structure. The transverse reinforcing section 21 is connected to the upper back door panel 11 in an attaching mode, and the longitudinal reinforcing section 22 is connected to the stand column 13 in an attaching mode, so that the structural strength of the bending transition connecting position of the upper back door panel 11 and the stand column 13 is enhanced through the first reinforcing plate 2, and the stress concentration situation at the position is reduced.

In order to facilitate the first reinforcing plate 2 to be attached to the upper back door panel 11 and the upright 13 better, the first reinforcing plate 2 is provided with a third groove 23 attached to the first reinforcing plate and the upright 13, and a fifth flange 24 and a sixth flange 25 respectively arranged on two sides of the top of the third groove 23, as shown in fig. 2. After the fifth flanging 24 and the sixth flanging 25 are attached to the upper back door plate 11 and the upright post 13, the fifth flanging and the sixth flanging can be fixedly connected in a welding mode, so that the structure of the joint is strengthened.

Preferably, the fifth flange 24 and the sixth flange 25 are configured in a circular arc shape to be in fit connection with the edge structure of the upper back door panel 11 and the pillar 13. Further, a second mounting hole 26 is disposed in the third groove 23, as shown in fig. 2. The second mounting hole 26 is located in the transverse reinforcing section 21. The second mounting hole 26 is used for mounting a back door hinge, and the first reinforcing plate 2 increases the strength and stability of the back door hinge mounting.

In one embodiment, as shown in FIG. 3, the width W1 of the transverse reinforcement segment 21 is 182mm, the length L1 of the transverse reinforcement segment 21 is 271mm, and the length L2 of the longitudinal reinforcement segment 22 is 290mm. The width W2 of the fifth flange 24 at one end of the transverse reinforcing section 21 is 13mm, and the width W3 of the sixth flange 25 at one end of the transverse reinforcing section 21 is 40mm. The length of the third groove 23 at one end of the longitudinal reinforcing section 22 is smaller than the length of the fifth flange 24 and the sixth flange 25. Wherein the vertical distance L3 from the outer edge of the third groove 23 at one end of the longitudinal reinforcing section 22 to the outer edge of the sixth flange 25 is 30mm.

Referring to fig. 1, one end of the second reinforcing plate 3 is provided on the lower back door panel 12, and the other end is provided on the pillar 13. Wherein a cavity 31 with a lateral opening 311 is formed between the second reinforcement plate 3 and the lower back door plate 12 and the pillar 13, as shown in fig. 6 and 7. Compared with the original attaching and reinforcing structure, the cavity 31 structure can increase the structural strength of the position and improve the bending resistance, thereby improving the overall mode of the back door inner plate. The lateral opening 311 of the cavity 31 is located between the lower edge of the second reinforcing plate 3 and the lower back door plate 12, as shown in fig. 6 and 7. The provision of the lateral opening 311 increases the volume of the cavity 31 as much as possible, further improving the bending resistance.

Referring to fig. 6,base:Sub>A-base:Sub>A isbase:Sub>A longitudinal partial sectional view of the second reinforcement panel in connection with the back door inner panel. The height of the cavity 31 at different positions can be seen in thebase:Sub>A-base:Sub>A diagram. Referring to FIG. 7, B-B is a transverse partial sectional view of the second reinforcement panel in connection with the inner back door panel. In this cross-sectional position, the height H1 of the cavity 31 is 28mm.

Further, the lower portion of the second reinforcing plate 3 is extended compared to the original attachment reinforcing structure, which provides a larger supporting area and reduces stress concentration. In addition, 2 welding spots are additionally arranged at the lower part of the second reinforcing plate 3, so that the structural strength can be further improved.

In the present embodiment, the first reinforcement plate 2 and the second reinforcement plate 3 are spaced apart from each other after being connected to the back door inner panel 1. That is, first reinforcing plate 2 and second reinforcing plate 3 do not strengthen stand 13 overall structure, and it is improving back of the body door inner panel on the prerequisite of the intensity and the anti ability of buckling of same two positions under, can also effectively reduce the holistic weight of back of the body door inner panel assembly, make things convenient for follow-up installation.

Referring to fig. 4 and 5, the second reinforcement plate 3 includes a first reinforcement segment 32, a second reinforcement segment 33, and a third reinforcement segment 34 that are connected to each other. The first reinforcing segment 32 and the second reinforcing segment 33 are oppositely arranged, and the third reinforcing segment 34 is perpendicular to the first reinforcing segment 32 and the second reinforcing segment 33. The first reinforcing section 32 is used for being in longitudinal fit connection with the pillar 13, the second reinforcing section 33 is connected with the lower back door panel 12 to form the cavity 31, and the lateral opening 311 is located between the lower edge of the second reinforcing section 33 and the lower back door panel 12. The third reinforcing section 34 is attached to the lower back door panel 12 in a lateral fit.

Referring to fig. 5, the first reinforcing segment 32 is provided as a first groove 321 which is concave downwards, so that the first reinforcing segment 32 can be in fit connection with the structure of the upright 13. The third reinforcing segment 34 is provided as a second groove 341 which is concave downwards, so that the third reinforcing segment 34 can be in fit connection with the structure of the lower back door panel 12. The second reinforcing segment 33 is provided as a protrusion 331 protruding upward such that the cavity 31 is formed between the second reinforcing segment 33 and the lower back door panel 12. The first groove 321 is connected with the protrusion 331 through a longitudinal transition, and the second groove 341 is connected with the protrusion 331 through a transverse transition. The second reinforcing plate 3 has a structure that not only can ensure the stability of connection with the lower back door panel 12 and the upright post 13, but also can improve the strength and the bending resistance of the bending connection part, thereby improving the modal performance of the whole structure.

In this embodiment, the length of the second reinforcing segment 33 is longer than the length of the structure to which the reinforcing plate is originally attached, which can further improve the supporting area and the bending resistance. In one embodiment, the length L4 of the cavity 31 is 273mm, that is, the length of the second reinforcing segment 33 and the length of the protrusion 331 are 273mm, which can meet the requirement of bending resistance. In one embodiment, the length of the second reinforcing section 33 is increased by 80mm compared with the length of the original attached reinforcing plate. The arrangement of the second reinforcing section 33 enables the strain energy concentrated area on the lower back door plate to move downwards and be far away from the bending part of the lower back door plate structure.

In one embodiment, the width W4 of the first reinforcing segment 32 is 105mm, the width W5 of the second reinforcing segment 33 is 149mm, the width W6 of the third reinforcing segment 34 is 121mm, and the sum W7 of the lengths of the first reinforcing segment 32 and the second reinforcing segment 33 is 382mm. The above dimensions are set to satisfy the connection with the lower back door panel 12 and the pillar 13 of the corresponding portion.

Referring to fig. 5, the second reinforcing panel 3 includes a first flange 35, a second flange 36, a third flange 37, and a fourth flange 38. Wherein the first flange 35 is connected to the outer edge of the first groove 321 and the outer edge of the protrusion 331. The second flange 36 is connected to the inner edge of the first groove 321 and the upper edge of the second groove 341. The third flange 37 is connected to the lower edge of the second groove 341 and the inner edge of the protrusion 331. The fourth flange 38 is connected to the third flange 37 and extends toward the lower back door panel 12. The first flange 35, the second flange 36 and the third flange 37 are used for being attached to corresponding positions of the upright column 13 and the lower back door panel 12 and then welded, so that the second reinforcing plate 3 is fixed on the back door inner panel 1. The shape of the second flange 36 is arc-shaped, so as to be in fit connection with the edge structures of the lower back door panel 12 and the upright post 13. The fourth flange 38 is arc-shaped and is adapted to be mounted to the edge of the lightening hole of the lower back door panel 12.

In one embodiment, the width W8 of the first flange 35 is 20mm, the width W9 of the second flange 36 is 25mm, the width W10 of the third flange 37 is 36mm, and the width W11 of the fourth flange 38 is 15mm, as shown in fig. 4.

Referring to fig. 4, a first mounting hole 342 is formed in the second recess 341. The first mounting hole 342 is used for mounting a back door hinge, and the second reinforcing plate 3 increases the strength and stability of the back door hinge mounting. In one embodiment, the distance from the lower edge of the second reinforcing segment 33 to the central axis of the first mounting hole 342 is 226mm.

In the present embodiment, the entire structure of the first reinforcing plate 2 and the second reinforcing plate 3 is integrally formed by a process such as punching.

Further, the back door inner panel 1 includes two pillars 13. Two pillars 13 are connected to both ends of the upper back door panel 11 and the lower back door panel 12, which surround a light transmission hole forming a windshield, as shown in fig. 1. In a preferred embodiment, the first reinforcing plate 2 and the second reinforcing plate 3 are two, and the two first reinforcing plates 2 and the two second reinforcing plates 3 are symmetrically arranged with respect to the light-transmitting hole. Two first reinforcing plates 2 and two second reinforcing plates 3 are arranged symmetrically relative to the light-transmitting holes, so that the position of bending transition between the upper back door plate 11 and the upright post 13 and the position of bending transition between the lower back door plate 12 and the upright post 13 are reinforced, and the required rigidity strength is further ensured.

The reinforcing plate of the back door inner plate assembly of the embodiment deletes the position with small strain energy and promotes the mode through weight reduction. This reinforcing plate has promoted anti bending capability through forming the die cavity additional strengthening with the back of the body door inner panel, has further promoted the whole modal performance of back of the body door.

The embodiment also provides a vehicle, which comprises the back door inner plate assembly in the embodiment, and the safety performance of the vehicle in the running process is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A back door inner panel assembly, comprising:

the back door inner plate (1) comprises an upper back door plate (11), a lower back door plate (12) and a stand column (13) for connecting the upper back door plate (11) and the lower back door plate (12);

one end of the first reinforcing plate (2) is arranged on the upper back door plate (11), and the other end of the first reinforcing plate is arranged on the upright post (13);

one end of the second reinforcing plate (3) is arranged on the lower back door plate (12), and the other end of the second reinforcing plate is arranged on the upright post (13);

wherein a cavity (31) with a lateral opening (311) is formed between the second reinforcing plate (3) and the lower back door panel (12) and the upright (13).

2. The tailgate inner panel assembly according to claim 1, characterized in that a lateral opening (311) of the cavity (31) is formed between a lower edge of the second reinforcement panel (3) and the lower tailgate panel (12).

3. The inner back door panel assembly according to claim 1 or 2, wherein the second reinforcement plate (3) comprises a first reinforcement section (32), a second reinforcement section (33) and a third reinforcement section (34) which are connected with each other, the first reinforcement section (32) and the second reinforcement section (33) are arranged oppositely, the third reinforcement section (34) is perpendicular to the first reinforcement section (32) and the second reinforcement section (33), the first reinforcement section (32) is connected with the pillar (13) in a longitudinal fit manner, the second reinforcement section (33) is connected with the lower back door panel (12) to form the cavity (31), and the third reinforcement section (34) is connected with the lower back door panel (12) in a transverse fit manner.

4. The tailgate inner panel assembly according to claim 3, wherein the first reinforcement section (32) comprises a downwardly recessed first groove (321), the third reinforcement section (34) comprises a downwardly recessed second groove (341), the second reinforcement section (33) comprises an upwardly raised protrusion (331), the first groove (321) is in longitudinal transition with the protrusion (331), and the second groove (341) is in transverse transition with the protrusion (331).

5. The tailgate inner panel assembly according to claim 4, wherein the second reinforcement panel (3) comprises a first flange (35), a second flange (36) and a third flange (37), the first flange (35) is connected to the outer edge of the first groove (321) and the outer edge of the protrusion (331), the second flange (36) is connected to the inner edge of the first groove (321) and the upper edge of the second groove (341), and the third flange (37) is connected to the lower edge of the second groove (341) and the inner edge of the protrusion (331).

6. The tailgate inner panel assembly according to claim 5, characterized in that the second reinforcement panel (3) further comprises a fourth flange (38), the fourth flange (38) being connected to the third flange (37) and extending toward the lower tailgate panel (12) side.

7. The tailgate inner panel assembly according to claim 4, wherein a first mounting hole (342) is disposed within the second recess (341).

8. The tailgate inner panel assembly according to claim 1, wherein the first reinforcement panel (2) comprises a lateral reinforcement section (21) and a longitudinal reinforcement section (22) connected to form an inverted "L" configuration.

9. The tailgate inner panel assembly according to claim 8, wherein the first reinforcement panel (2) comprises a third groove (23) and a fifth flange (24) and a sixth flange (25) respectively connected to two sides of the top of the third groove (23), and a second mounting hole (26) is formed in the third groove (23) of the transverse reinforcement section (21).

10. A vehicle comprising the tailgate inner panel assembly, according to any of claims 1-9.