CN219904013U - Door inner panel assembly, door and vehicle - Google Patents

Abstract

The embodiment of the utility model discloses a vehicle door inner plate assembly, a vehicle door and a vehicle. The setting of lock body reinforcing plate and hinge reinforcing plate can promote door inner panel overall rigidity, shock resistance and the switching durability of door, has reduced the door abnormal sound risk, has promoted door closing sound quality.

Description

Door inner panel assembly, door and vehicle

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a vehicle door inner plate assembly, a vehicle door and a vehicle.

Background

Doors are an important component of the body of an automobile. The inner plate of the existing car door is simple in structure, and when the car door is impacted, excessive deformation can be caused due to insufficient rigidity, so that the car door is blocked and the like. In order to provide an effective living space for the occupant, it is necessary to secure a certain rigidity and strength of the door.

Disclosure of Invention

In view of the above, the embodiment of the utility model provides a vehicle door inner plate assembly, a vehicle door and a vehicle, which can improve the overall rigidity, the impact resistance and the opening and closing durability of the vehicle door inner plate.

In a first aspect, an embodiment of the present utility model provides a door inner panel assembly including:

the vehicle door inner plate comprises a hinge installation area and a lock body installation area which are oppositely arranged;

the lock body reinforcing plate is fixedly connected to the lock body installation area, and a first cavity is formed between the lock body reinforcing plate and the vehicle door inner plate;

the hinge reinforcing plate is fixedly connected to the hinge installation area, and a second cavity is formed between the hinge reinforcing plate and the inner plate of the vehicle door.

Further, the door inner panel includes a window frame for mounting glass, a first lightening hole, a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is arranged below the window frame and longitudinally penetrates through the middle position of the door inner panel, the first lightening hole is formed in two sides of the first reinforcing rib, the second reinforcing rib is arranged between the first reinforcing rib and the first lightening hole, and the first lightening hole is provided with a flanging.

Further, the hinge reinforcing plate comprises a first connecting surface, a second connecting surface and a third connecting surface, wherein the second connecting surface is connected to the right side of the first connecting surface in an extending mode, the third connecting surface is connected to the left side of the first connecting surface and is bent and extends downwards in a preset angle, the first connecting surface is lapped to the left side of the window frame, the second connecting surface is connected to the lower side of the window frame in an extending mode, and the third connecting surface is lapped to the left side turning edge of the inner plate of the vehicle door.

Further, the hinge reinforcing plate further comprises a first hinge flanging, a second hinge flanging, a third hinge flanging and a fourth hinge flanging, wherein the first hinge flanging is connected to the left side of the first connecting surface, the second hinge flanging is connected to the lower side of the third connecting surface, the third hinge flanging is connected to the right side of the first connecting surface and the top side of the second connecting surface, and the fourth hinge flanging is connected to the right side of the first connecting surface and the bottom side of the second connecting surface.

Further, the first connecting surface is provided with a plurality of buckle mounting holes, the third connecting surface is provided with a hinge mounting hole, the first hinge flanging is provided with a plurality of first welding spot bosses, and the first connecting surface is provided with a third reinforcing rib.

Further, the lock body reinforcing plate comprises a first welding surface, a second welding surface and a third welding surface, wherein the second welding surface is connected to the left side of the first welding surface in an extending mode, the third welding surface is connected to the right side of the first welding surface and is bent and extends downwards in a preset angle, the first welding surface is lapped on the right side of the window frame, the second welding surface is connected to the lower side of the window frame in an extending mode, and the third welding surface is lapped on the right side turning edge of the inner plate of the vehicle door.

Further, the lock body reinforcing plate further comprises a first lock body flanging, a second lock body flanging and a third lock body flanging, wherein the first lock body flanging is connected to the left side of the first welding surface and the top side of the second welding surface, the second lock body flanging is connected to the bottom side of the second welding surface and the left side of the first welding surface, and the third lock body flanging is connected to the right side of the third welding surface.

Further, the first welding surface and the second lock body flanging are respectively provided with a plurality of second welding bosses, the first welding surface is provided with a second lightening hole, the first welding surface and the third welding surface are provided with lock body mounting holes, and the second lock body flanging and the third lock body flanging are provided with fourth reinforcing ribs.

In a second aspect, an embodiment of the present utility model provides a vehicle door, including:

the door inner panel assembly according to the first aspect;

glass installed in a window frame of the door inner panel;

an interior trim panel connected to an inner side of the door inner panel;

and a door outer panel connected to an outer side of the door inner panel.

In a third aspect, embodiments of the present utility model provide a vehicle comprising a door as described in the second aspect.

The embodiment of the utility model provides a vehicle door inner plate assembly, a vehicle door and a vehicle. The setting of lock body reinforcing plate and hinge reinforcing plate can promote door inner panel overall rigidity, shock resistance and the switching durability of door, has reduced the door abnormal sound risk, has promoted door closing sound quality.

Drawings

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

FIG. 1 is a schematic structural view of a door inner panel assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic side view of a door inner panel according to an embodiment of the utility model;

FIG. 3 is another side schematic view of a door inner panel according to an embodiment of the utility model;

FIG. 4 is a front view of a hinge reinforcement plate according to an embodiment of the present utility model;

FIG. 5 is a rear view of a hinge reinforcement plate of an embodiment of the present utility model;

FIG. 6 is a side view of a hinge reinforcement plate of an embodiment of the present utility model;

FIG. 7 is a front view of a lock body reinforcing plate according to an embodiment of the present utility model;

FIG. 8 is a rear view of a lock body reinforcing plate according to an embodiment of the present utility model;

FIG. 9 is a side view of a lock body reinforcing plate according to an embodiment of the present utility model;

FIG. 10 is a partial schematic view of a hinge reinforcement panel attached to a door inner panel in accordance with an embodiment of the present utility model;

FIG. 11 is a partial schematic view of a lock body reinforcement panel attached to a door inner panel in accordance with an embodiment of the present utility model.

Reference numerals:

1-a door inner panel; 2-a lock body reinforcing plate; 3-hinge reinforcement plate; 4-a window frame; 5-a first lightening hole; 6-a first reinforcing rib; 7-a second reinforcing rib; 8-a first connection face; 9-a second connection face; 10-a third connection face; 11-a first hinge flange; 12-a second hinge flanging; 13-third hinging flanging; 14-fourth hinge flanging; 15-a buckle mounting hole; 16-hinge mounting holes; 17-a first welding spot boss; 18-third reinforcing ribs; 19-a first welding surface; 20-a second welding surface; 21-a third welding surface; 22-flanging the first lock body; 23-flanging the second lock body; 24-flanging the third lock body; 25-a second welding boss; 26-a second lightening hole; 27-a lock body mounting hole; 28-fourth reinforcing ribs.

Detailed Description

The present utility model is described below based on examples, but the present utility model is not limited to only these examples. In the following detailed description of the present utility model, certain specific details are set forth in detail. The present utility model will be fully understood by those skilled in the art without the details described herein. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the utility model.

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

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like throughout the application are to be construed as including but not being exclusive or exhaustive; that is, it is the meaning of "including but not limited to".

In the description of the present utility model, it should 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. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Fig. 1 is a schematic structural view of a door inner panel assembly of the present embodiment. The vehicle door inner plate assembly comprises a vehicle door inner plate 1, a lock body reinforcing plate 2 and a hinge reinforcing plate 3. The door inner panel 1 includes a hinge mounting area (not identified) and a lock body mounting area (not identified) which are provided opposite to each other, the hinge mounting area and the lock body mounting area being provided on both front and rear sides of the door inner panel 1. The hinge installation area is used for installing a door hinge, and the lock body installation area is used for installing a door lock. The lock body reinforcing plate 2 is fixedly arranged in the lock body installation area of the vehicle door inner plate 1, so that the shock resistance of the position of a vehicle door lock can be improved, and the abnormal sound and deformation risk of the vehicle door can be reduced. The hinge reinforcing plate 3 is fixedly arranged in a hinge installation area of the vehicle door inner plate 1, so that the rigidity and the strength of the hinge installation area can be enhanced, the load transmitted by the vehicle door hinge can be borne, and the requirements of durability and load bearing are met.

Secondly, through addding lock body reinforcing plate 2 and hinge reinforcing plate 3, can make door inner panel 1 keep thinner thickness, effectively reduce door inner panel assembly's weight, satisfy the lightweight requirement, improve fuel economy. Finally, the door inner panel 1 is an integral structure, can be made of plates with the same thickness, does not need to be made by a welding process, and simplifies the manufacturing steps.

Specifically, the door inner panel 1 includes a window frame 4, a first lightening hole 5, a first bead 6, and a second bead 7, as shown in fig. 2 and 3. The window frame 4 is located above the inner door plate 1, and the window frame 4 is a closed space and is used for installing glass, so that drivers and passengers can observe external conditions conveniently. The first lightening hole 5 is arranged below the window frame 4 and is used for lightening the total weight of the vehicle door, so as to meet the requirement of lightening the weight. The first reinforcing bead 6 is disposed below the window frame 4 and penetrates longitudinally through the middle position of the door inner panel 1, so that the rigidity performance of the door inner panel 1 is improved. The second reinforcing bead 7 is disposed between and around the first reinforcing bead 6 and the first lightening hole 5 for assisting the first reinforcing bead 6, and can further improve the rigidity performance of the door inner panel 1. Further, the first reinforcing ribs 6 are located in the motor installation area and used for improving rigidity and strength during motor installation and facilitating motor installation.

The number of the first lightening holes 5 may be set according to the need. In one embodiment, the door inner panel 1 is provided with two first lightening holes 5 as shown in fig. 2 and 3. Two first lightening holes 5 are provided at a distance below the window frame 4. The first reinforcing ribs 6 are longitudinally arranged between the two first lightening holes 5, so that the vehicle door can meet the requirement of light weight on the premise of ensuring rigidity and strength performance. A plurality of second reinforcing beads 7 are disposed around the first lightening holes 5 and the periphery of the first reinforcing beads 6 to improve rigidity and strength of the door inner panel. Further, the first lightening holes 5 are provided with flanging, so that the rigidity performance of the inner plate of the vehicle door can be further improved, and stress concentration is avoided.

The shape and size of the first lightening holes 5 can be set according to the requirement. Wherein the corners of the first lightening holes 5 are all in arc transition, so that stress concentration is reduced. The rib lifting positions and the trend of the first reinforcing rib 6 and the second reinforcing rib 7 can be set according to specific rigidity and strength requirements, so that the rigidity performance and the door mode of the door inner plate 1 are improved. Through the topology and morphology optimization, the vehicle door inner plate 1 improves the overall rigidity and the shock resistance of the vehicle door under the condition of meeting the space arrangement requirement.

As shown in fig. 11, after the lock body reinforcing plate 2 is fixedly connected to the lock body installation area of the door inner panel 1, a first cavity is formed between the lock body reinforcing plate 2 and the door inner panel 1. The first cavity is a closed cavity, so that the overall rigidity performance of the vehicle door can be further improved. In the present embodiment, the lock body mounting area is located on the right side of the door inner panel 1.

Wherein the lock body reinforcing plate 2 comprises a first welding surface 19, a second welding surface 20 and a third welding surface 21, as shown in fig. 7-9. The first welding surface 19 extends longitudinally overlapping the right side of the window frame 4, as shown in fig. 1. I.e. the first welding surface 19 overlaps the right-hand window frame 4. Wherein, the upper end of first welding face 19 forms confined first cavity with window frame 4 overlap joint, has promoted window frame rigidity and door global rigidity performance.

The second welding surface 20 is connected to the left side of the first welding surface 19 in a laterally extending manner, as shown in fig. 7. Wherein the second welding surface 20 extends and overlaps the lower side of the window frame 4 (i.e. the lower side of the window frame 4), so as to improve the rigidity of the waist line position of the vehicle door and the rigidity of the window frame.

The third welding surface 21 is connected to the right side of the first welding surface 19 and is bent at a predetermined angle to extend downward, as shown in fig. 8. The third welding surface 21 is lapped on the right side edge of the inner door plate 1, so as to improve the overall rigidity performance of the automobile door. The angle between the third welding surface 21 and the first welding surface 19 is specifically set according to the angle of the right turn-up of the door inner panel 1.

In this embodiment, the lock body reinforcing plate 2 enhances the waist line rigidity and the window frame rigidity of the vehicle door by extending to the window frame position, reduces the risk of abnormal sound of the vehicle door, and improves the door closing sound quality of the vehicle door.

Further, the lock reinforcing plate 2 further includes a first lock flange 22, a second lock flange 23, and a third lock flange 24, as shown in fig. 7. Wherein the first lock flange 22 is connected to the left side of the first welding surface 19 and the top side of the second welding surface 20, the second lock flange 23 is connected to the bottom side of the second welding surface 20 and the left side of the first welding surface 19, and the third lock flange 24 is connected to the right side of the third welding surface 21, as shown in fig. 7 to 9. The first lock body flange 22, the second lock body flange 23 and the third lock body flange 24 are used for being bonded with different positions of the vehicle door inner plate 1 and then welded, so that the stability of connection between the lock body reinforcing plate 2 and the vehicle door inner plate 1 is improved. In this embodiment, the first, second, and third lock body beads 22, 23, and 24 are welded to the door inner panel 1 by a plurality of welding points.

Further, the first welding surface 19 and the second lock collar 23 are respectively provided with a plurality of second welding bosses 25, as shown in fig. 7. The plurality of second welding bosses 25 are disposed in sequence along the extending direction. The second welding boss 25 is a sinking boss (i.e., sinking toward the bottom surface), and is used for increasing the attaching area with the door inner panel 1. The position of the second welding boss 25 is welded with the inner door panel 1 through a welding point, so that the connection strength is further increased.

The first welding surface 19 is provided with a second lightening hole 26, as shown in fig. 7. The provision of the second lightening holes 26 makes the lock body reinforcing plate 2 realize the overall lightening of the vehicle door on the premise of satisfying the rigidity and strength of the lock body installation area of the vehicle door inner plate 1. The number, size and location of the second lightening holes 26 may be set according to the specific circumstances.

Further, the lock body reinforcing plate 2 is also provided with a lock body mounting hole 27, as shown in fig. 7 to 9. Wherein the lock body mounting holes 27 are provided on the first welding surface 19 and the third welding surface 21. The lock body mounting holes 27 facilitate mounting of the door lock structure. According to the shape optimization, fourth reinforcing ribs 28 are further arranged on the second lock body flanging 23 and the third lock body flanging 24. The rib lifting position and the trend of the fourth reinforcing rib 28 can be set according to specific rigidity and strength requirements, so that the rigidity performance of the lock body reinforcing plate 2 is improved. In addition, other positions of the lock body reinforcing plate 2 can be provided with corresponding reinforcing ribs according to requirements. The lock body reinforcing plate 2 realizes optimal structural weight design on the premise of ensuring the performance to reach the standard through the topology and shape optimization.

As shown in fig. 10, after the hinge reinforcement plate 3 is fixedly attached to the hinge mounting area of the door inner panel 1, a second cavity is formed between the hinge reinforcement plate 3 and the door inner panel 1. The second cavity is a closed cavity, so that the overall rigidity performance of the vehicle door can be further improved. In the present embodiment, the hinge mounting area is located on the left side of the door inner panel 1.

Wherein the hinge reinforcement plate 3 comprises a first connection surface 8, a second connection surface 9 and a third connection surface 10, as shown in fig. 4-6. The first connection surface 8 is overlapped on the left side of the window frame 4 as shown in fig. 1. I.e. the first connection surface 8 overlaps the left-hand window frame 4. Wherein, hinge reinforcing plate 3 and door inner panel 1 overlap joint form confined second cavity, have promoted the whole rigidity of hinge installation district, improve the ability of hinge installation district resistance to opening and closing impact force.

The second connection surface 9 is connected to the right side of the first connection surface 8 in a laterally extending manner, as shown in fig. 4. Wherein the second connecting surface 9 transversely extends and overlaps the lower side of the window frame 4 (namely, the lower side window frame 4 part), so that the rigidity of the waist line position of the vehicle door and the rigidity of the window frame can be improved.

The third connecting surface 10 is connected to the left side of the first connecting surface 8 and is bent at a predetermined angle to extend downward, as shown in fig. 5 and 6. The third connecting surface 10 is lapped on the left side edge of the inner door plate 1, so as to improve the overall rigidity performance of the automobile door. The included angle between the third connecting surface 10 and the first connecting surface 8 is specifically set according to the included angle of the left flanging of the inner door panel 1.

In the present embodiment, the hinge reinforcing plate 3 enhances the rigidity of the hinge installation area and the rigidity of the window frame by extending to the window frame position, and improves the door impact resistance and the open/close durability life.

Further, the hinge reinforcement panel 3 further comprises a first hinge flange 11, a second hinge flange 12, a third hinge flange 13 and a fourth hinge flange 14, as shown in fig. 4. Wherein the first hinge flange 11 is connected to the left side of the first connection surface 8, the second hinge flange 12 is connected to the lower side of the third connection surface 10, the third hinge flange 13 is connected to the right side of the first connection surface 8 and the top side of the second connection surface 9, and the fourth hinge flange 14 is connected to the right side of the first connection surface 8 and the bottom side of the second connection surface 9, as shown in fig. 4 to 6.

The first hinge flange 11, the second hinge flange 12, the third hinge flange 13 and the fourth hinge flange 14 are used for being bonded with different positions of the door inner panel 1 and then welded, so that the stability of the connection of the hinge reinforcing plate 3 and the door inner panel 1 is improved. In the present embodiment, the first hinge bead 11, the second hinge bead 12, the third hinge bead 13, and the fourth hinge bead 14 are welded to the door inner panel 1 by a plurality of welding points.

Further, the first connection surface 8 is provided with a plurality of snap-fit mounting holes 15, as shown in fig. 6 and 10. The snap fit holes 15 facilitate mounting of the accessory. The number of the buckle mounting holes 15 is set according to the requirement. The third connection surface 10 has a hinge mounting hole 16 as shown in fig. 6 and 10. The hinge mounting hole 16 is used to mount a door hinge. The first hinge flange 11 is provided with a plurality of first welding spot bosses 17. The first welding boss 17 is a settlement boss (i.e. settled toward the bottom surface), and is used for increasing the attaching area with the door inner panel 1. The position of the first welding spot boss 17 is welded with the inner door plate 1 through welding spots, so that the connection strength is further increased. The first connection surface 8 is provided with third reinforcing ribs 18. The rib lifting position and the trend of the third reinforcing rib 18 can be set according to specific rigidity and strength requirements, so that the rigidity performance of the hinge reinforcing plate 3 is improved. In addition, other positions (such as structure transition positions) of the hinge reinforcing plate 3 can be provided with corresponding reinforcing ribs according to requirements, so that the rigidity performance of the structure of the hinge reinforcing plate 3 is enhanced. The hinge reinforcing plate 3 meets the requirements of the rigidity performance and the opening and closing durability of the vehicle door through the topological and morphological optimization.

According to the embodiment, the lock body reinforcing plate and the hinge reinforcing plate are respectively arranged in the lock body installation area and the hinge installation area of the inner plate of the vehicle door, so that the rigidity performance, the impact resistance performance and the opening and closing durability of the vehicle door are improved, the risk of abnormal sound of the vehicle door is reduced, and the quality of door closing sound of the vehicle door is improved.

The embodiment also provides a vehicle door, which comprises the vehicle door inner plate assembly, glass, an inner decorative plate and a vehicle door outer plate. The door inner panel assembly has the same structure as the door inner panel assembly of the above embodiment, and will not be described here again. After attaching accessories such as a door hinge and a door lock to the door inner panel 1, glass may be attached to the door inner panel 1 in the window frame 4, and then an inner trim and a door outer panel may be attached to both the inner and outer sides of the door inner panel 1.

The present embodiment also provides a vehicle including the door of the above embodiment. The vehicle door has higher rigidity performance, impact resistance performance and opening and closing durability of the vehicle door, reduces the risk of abnormal sound of the vehicle door, and improves the quality of door closing sound.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A door inner panel assembly, characterized in that the door inner panel assembly comprises:

a door inner panel (1) including a hinge installation area and a lock body installation area which are oppositely arranged;

the lock body reinforcing plate (2) is fixedly connected to the lock body installation area, and a first cavity is formed between the lock body reinforcing plate (2) and the vehicle door inner plate (1);

the hinge reinforcing plate (3) is fixedly connected to the hinge installation area, and a second cavity is formed between the hinge reinforcing plate (3) and the vehicle door inner plate (1).

2. The door inner panel assembly according to claim 1, wherein the door inner panel (1) includes a window frame (4) for mounting glass, a first lightening hole (5), a first reinforcing rib (6) and a second reinforcing rib (7), the first reinforcing rib (6) is arranged below the window frame (4) and longitudinally penetrates through an intermediate position of the door inner panel (1), the first lightening hole (5) is provided at both sides of the first reinforcing rib (6), the second reinforcing rib (7) is arranged between the first reinforcing rib (6) and the first lightening hole (5), and the first lightening hole (5) has a burring.

3. The door inner panel assembly according to claim 2, wherein the hinge reinforcement plate (3) includes a first connection surface (8), a second connection surface (9) and a third connection surface (10), the second connection surface (9) is connected to the right side of the first connection surface (8) in an extending manner, the third connection surface (10) is connected to the left side of the first connection surface (8) and extends downward in a bending manner at a predetermined angle, the first connection surface (8) is lapped on the left side of the window frame (4), the second connection surface (9) is connected to the lower side of the window frame (4) in an extending manner, and the third connection surface (10) is lapped on the left side edge of the door inner panel (1).

4. The door inner panel assembly according to claim 3, wherein the hinge reinforcement panel (3) further comprises a first hinge trim (11), a second hinge trim (12), a third hinge trim (13) and a fourth hinge trim (14), the first hinge trim (11) being connected to the left side of the first connection face (8), the second hinge trim (12) being connected to the lower side of the third connection face (10), the third hinge trim (13) being connected to the right side of the first connection face (8) and to the top side of the second connection face (9), the fourth hinge trim (14) being connected to the right side of the first connection face (8) and to the bottom side of the second connection face (9).

5. The door inner panel assembly according to claim 4, wherein the first connection face (8) is provided with a plurality of snap fit mounting holes (15), the third connection face (10) is provided with a hinge mounting hole (16), the first hinge bead (11) is provided with a plurality of first welding spot bosses (17), and the first connection face (8) is provided with a third stiffener (18).

6. The door inner panel assembly according to claim 2, wherein the lock body reinforcement plate (2) includes a first welding surface (19), a second welding surface (20) and a third welding surface (21), the second welding surface (20) is connected to the left side of the first welding surface (19) in an extending manner, the third welding surface (21) is connected to the right side of the first welding surface (19) and extends downward in a bending manner at a predetermined angle, the first welding surface (19) is overlapped to the right side of the window frame (4), the second welding surface (20) is overlapped to the lower side of the window frame (4), and the third welding surface (21) is overlapped to the right side rollover edge of the door inner panel (1).

7. The door inner panel assembly according to claim 6, wherein the lock body reinforcement plate (2) further includes a first lock body flange (22), a second lock body flange (23), and a third lock body flange (24), the first lock body flange (22) is connected to a left side of the first welding surface (19) and a top side of the second welding surface (20), the second lock body flange (23) is connected to a bottom side of the second welding surface (20) and a left side of the first welding surface (19), and the third lock body flange (24) is connected to a right side of the third welding surface (21).

8. The door inner panel assembly according to claim 7, wherein the first welding surface (19) and the second lock body bead (23) are respectively provided with a plurality of second welding bosses (25), the first welding surface (19) is provided with a second lightening hole (26), the first welding surface (19) and the third welding surface (21) are provided with lock body mounting holes (27), and the second lock body bead (23) and the third lock body bead (24) are provided with fourth reinforcing ribs (28).

9. A vehicle door, the vehicle door comprising:

the door inner panel assembly according to any one of claims 1 to 8;

glass mounted in a window frame (4) of the door inner panel (1);

an interior trim panel connected to the inside of the door inner panel (1);

and a door outer plate connected to the outside of the door inner plate (1).

10. A vehicle comprising a door as claimed in claim 9.