CN221366866U

CN221366866U - Side wall B post inner panel lower part structure and vehicle

Info

Publication number: CN221366866U
Application number: CN202323455202.9U
Authority: CN
Inventors: 吴强; 惠光辉; 赵一鸣; 黄伟男; 汪永杰
Original assignee: Weilai Automobile Technology Anhui Co Ltd
Current assignee: Weilai Automobile Technology Anhui Co Ltd
Priority date: 2023-12-18
Filing date: 2023-12-18
Publication date: 2024-07-19
Anticipated expiration: 2033-12-18

Abstract

The application relates to the technical field of vehicles, in particular to a lower structure of a side wall B-pillar inner plate and a vehicle, and aims to solve the problems that a mounting bracket is welded in a cavity, a safety belt retractor is mounted on the mounting bracket, and the side collision performance of the vehicle and the strength of a fixing point of the safety belt retractor can be reduced. For this purpose, the lower part structure of the side wall B column inner plate comprises an inner plate body and an installation plate, wherein the lower part of the inner plate body is provided with a convex part protruding into the vehicle, and the convex part is provided with an installation through hole; the mounting plate is fixed on the convex part and covers part of the mounting through hole, and protrudes inwards, the mounting plate and the inner plate body enclose to form a mounting cavity, and the safety belt retractor is positioned in the mounting cavity and mounted on the mounting plate. The application can reduce the stamping depth of the inner plate body in the Y direction and improve the side collision performance of the vehicle and the strength and the rigidity of the fixing point of the safety belt retractor.

Description

Side wall B post inner panel lower part structure and vehicle

Technical Field

The application relates to the technical field of vehicles, and particularly provides a lower structure of a side wall B-pillar inner plate and a vehicle.

Background

With the development of the automobile market, the requirements of consumers on the automobile safety performance are continuously improved. The B pillar is an important structural component of the vehicle body, and is mainly used for bearing side impact to protect drivers and passengers, and meanwhile, provides mounting points for structures such as a front door lock catch, a rear door hinge, a front seat belt retractor and the like, and needs to have sufficient rigidity and strength. The cavity is formed in the stamping of the Y direction of B post inner panel lower part, and the safety belt retractor is installed in the cavity, because the B post inner panel material intensity is higher, the elongation is low, the stamping depth of cavity can not be too dark to avoid B post inner panel shaping wrinkling or fracture.

The current B post inner panel reduces the stamping depth of Y direction, welds a installing support in the position of the seat belt retractor of cavity, installs the seat belt retractor on the installing support, but this kind of mode of installation seat belt retractor can reduce the side collision performance of vehicle and the intensity of the fixed point of seat belt retractor.

Accordingly, there is a need in the art for a new side bollard inner panel lower structure and vehicle that addresses the above-described problems.

Disclosure of utility model

The present application is intended to solve the above-mentioned problems, namely, problems that the side collision performance of a vehicle and the strength of the fixing point of a seatbelt retractor are reduced by adopting an installation manner in which an installation bracket is welded in a cavity and the seatbelt retractor is installed on the installation bracket by reducing the punching depth in the Y direction of a B-pillar inner panel.

The application provides a lower structure of a side wall B column inner plate; the lower structure of the side wall B column inner plate comprises an inner plate body and an installation plate, wherein the lower part of the inner plate body is provided with a convex part protruding inwards, and the convex part is provided with an installation via hole;

The mounting plate is fixed on the convex part and covers part of the mounting through hole, and protrudes inwards, the mounting plate and the inner plate body enclose to form a mounting cavity, and the safety belt retractor is positioned in the mounting cavity and mounted on the mounting plate.

In the preferred technical scheme of the side wall B pillar inner panel lower structure, the mounting plate comprises a flat plate portion, a first connecting portion, a second connecting portion and a third connecting portion, wherein the first connecting portion and the second connecting portion are respectively arranged on two sides of the flat plate portion, the third connecting portion is arranged on the lower portion of the flat plate portion, and the first connecting portion, the second connecting portion and the third connecting portion are bent towards the direction of the inner panel body and welded on the protruding portion so that the flat plate portion protrudes inwards.

In the preferred technical scheme of the side wall B pillar inner plate lower structure, the top of the flat plate part is provided with the mounting notch, the flat plate part is provided with the first mounting hole, the L-shaped claw of the safety belt retractor is clamped in the mounting notch, and the mounting bolt of the safety belt retractor passes through the first mounting hole and is used for mounting the safety belt retractor on the flat plate part.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, the flat plate part is provided with an error-proof folded edge, and the L-shaped claw of the safety belt retractor is positioned at one side of the error-proof folded edge, which is close to the vehicle head;

When the installation direction of the safety belt retractor is wrong, the L-shaped claw of the safety belt retractor interferes with the anti-misfolding edge, so that the L-shaped claw of the safety belt retractor cannot be clamped in the installation notch.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, a convex rib is arranged at the position, close to the mounting notch, of the flat plate part, and the safety belt retractor is attached to the convex rib; and/or

The height of the convex ribs is 0.2-0.5mm.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, a flanging is arranged at least part of the hole wall of the mounting via hole.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, the two sides of the inner plate body are respectively provided with a first welding edge and a second welding edge, and the first welding edge and the second welding edge are welded with the outer plate;

The bottom of the inner plate body is provided with a third welding edge which is welded with the threshold beam.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, a second mounting hole and a limiting hole of the safety belt retractor are formed in the upper part of the mounting through hole on the inner plate body;

And a collision sensor mounting hole and a collision sensor limiting hole are formed in one side of the inner plate body, which is positioned on the mounting through hole.

In the preferable technical scheme of the lower structure of the side wall B column inner plate, an inner decorative guard plate mounting hole is formed in one side of the inner plate body, which is positioned at the mounting via hole;

an inner plate body welding pair positioning hole is formed in one side of the inner plate body, which is positioned at the mounting via hole;

A plurality of wire harness mounting holes are formed in the inner plate body and located around the mounting via holes;

the panel part is provided with a wiring harness installation hole and an interior trim guard board installation hole.

In a second aspect, the present application provides a vehicle; the vehicle includes the side bollard inner panel lower structure as described above.

Under the condition of adopting the technical scheme, the mounting plate is fixed on the convex part and covers part of the mounting through hole, the mounting plate is arranged in a protruding way in the vehicle, namely, the mounting plate protrudes towards the Y direction, and the mounting plate and the inner plate body enclose to form a mounting cavity. The mounting plate protrudes towards the Y direction, so that the depth of the mounting cavity in the Y direction can be increased, the protruding depth of the protruding part of the inner plate body can be reduced under the condition that the depth of the mounting cavity in the Y direction is unchanged, namely, the stamping depth of the inner plate body in the Y direction can be reduced, the possibility of forming wrinkling or cracking of the inner plate body can be further reduced, the strength and the rigidity of the inner plate body can be further improved, and the side collision performance of a vehicle can be improved. And because mounting panel and inner panel body are the components of a whole that can function independently manufacturing, the mounting panel can select intensity and thickness bigger material to make to improve the intensity and the rigidity of safety belt retractor fixed point, make the safety belt retractor can more stable the installation on the mounting panel.

Drawings

Preferred embodiments of the present application are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the lower structure of a side bollard inner panel of the present application;

FIG. 2 is a partial schematic view of the lower side bollard inner panel structure of the application after assembly of the seatbelt retractor;

FIG. 3 is a partial schematic view of the lower structure of the side bollard inner panel of the present application;

FIG. 4 is a top plan cross-sectional view of the lower structure of the side bollard inner panel of the present application;

FIG. 5 is a partial schematic view of the inner panel body of the present application;

FIG. 6 is a cross-sectional view taken along the direction A-A in FIG. 5;

FIG. 7 is a cross-sectional view taken in the direction B-B of FIG. 5;

FIG. 8 is a schematic view of a mounting plate of the present application;

FIG. 9 is a cross-sectional view taken along the direction C-C in FIG. 8;

FIG. 10 is an enlarged view of portion A of FIG. 9;

FIG. 11 is a cross-sectional view taken along the direction D-D in FIG. 8;

FIG. 12 is an enlarged view of portion B of FIG. 11;

reference numerals:

1. An inner plate body; 11. a convex portion; 111. mounting a via hole; 12. a second mounting hole; 13. a limiting hole; 14. a collision sensor mounting hole; 15. a collision sensor limiting hole; 16. an interior trim guard mounting hole; 17. the inner plate body is welded with the auxiliary positioning hole; 18. a harness installation hole; 2. a mounting plate; 21. a flat plate portion; 211. a mounting notch; 212. a first mounting hole; 22. a first connection portion; 23. a second connecting portion; 24. a third connecting portion; 3. convex ribs; 4. error-proof flanging; 5. a seatbelt retractor; 51. l-shaped clamping jaws; 6. flanging; 7. a first welding edge; 8. a second welding edge; 9. a third welding edge; 10. a mounting cavity.

Detailed Description

Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. Those skilled in the art can adapt it as desired to suit a particular application.

It should be noted that, in the description of the present application, terms such as "upper", "lower", "left", "right", and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either a fixed connection or a removable connection, for example; 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 application can be understood by those skilled in the art according to the specific circumstances.

In order to solve the problem that the side collision performance of a vehicle and the strength of the fixing point of a seatbelt retractor are reduced by adopting an installation mode in which an installation bracket is welded in a cavity and the seatbelt retractor is installed on the installation bracket by reducing the punching depth of a B-pillar inner panel in the Y direction.

As shown in fig. 1 to 3, the present embodiment discloses a vehicle including a side outer panel, a side B pillar, a rocker beam, and a seatbelt retractor 5, the side B pillar being fixed between the side outer panel and the rocker beam, the side B pillar including an outer panel, a reinforcing plate welded to the outer panel, and a side B pillar inner panel lower structure, the seatbelt retractor 5 being mounted on the side B pillar inner panel lower structure.

Specifically, side wall B post inner panel lower part structure includes inner panel body 1 and mounting panel, and the mounting panel is fixed on inner panel body 1. In order to more clearly describe the structure of the inner panel body 1 and the mounting plate, a three-dimensional coordinate system is established with the longitudinal direction of the vehicle as the X-axis, the direction from the head to the tail is defined as the X-direction, the direction from the outside to the inside is defined as the Y-direction, and the direction from the bottom to the roof is defined as the Z-direction.

As shown in fig. 3 to 7, the inner panel body 1 is provided with a first welding edge 7 and a second welding edge 8 integrally formed on both sides thereof, and the first welding edge 7 and the second welding edge 8 are welded to the outer panel by a plurality of welding spots. The bottom integrated into one piece of inner panel body 1 is equipped with third welding limit 9, and third welding limit 9 welds on the threshold roof beam through a plurality of solder joints, can improve the fixed effect between inner panel body 1 and the threshold roof beam through third welding limit 9, makes intensity and the rigidity of inner panel body 1 obtain promoting. The inner plate body 1 is provided with the inner plate body welding pair locating hole 17 at one side of the mounting via hole 111, and the accuracy of the mounting position of the inner plate body 1 can be improved under the locating effect of the inner plate body welding pair locating hole 17.

As shown in fig. 3 to 6, the lower portion of the inner panel body 1 is integrally punched to form a convex portion 11 protruding in the Y direction, and the convex portion 11 is provided with a mounting via hole 111, the size of the mounting via hole 111 being dependent on the size of the seatbelt retractor 5. At least part of the hole wall of the mounting via hole 111 is integrally formed with a flange 6 turned towards the outer plate, in this embodiment, part of the hole wall of the mounting via hole 111 is provided with the flange 6, and the height of the flange 6 is set to 3mm, so that the strength of the inner plate body 1 at the mounting via hole 111 can be enhanced by the flange 6, and the arrangement of the safety belt retractor 5 can not be affected. When the space in the installation cavity 10 is insufficient, the flange 6 is not required to be arranged.

As shown in fig. 2 to 4, the mounting plate covers the lower portion of the mounting via hole 111 and is fixed to the convex portion 11, and the mounting plate protrudes in the Y direction, and the mounting plate encloses the inner plate body 1 to form a mounting chamber 10, and the seatbelt retractor 5 is located in the mounting chamber 10 and mounted on the mounting plate. Since the mounting plate protrudes toward the Y direction, the depth of the mounting chamber 10 in the Y direction can be increased, so that the protruding depth of the protruding portion 11 of the inner plate body 1 can be reduced, i.e., the punching depth of the inner plate body 1 in the Y direction can be reduced, with the depth of the mounting chamber 10 in the Y direction unchanged.

As shown in fig. 2 to 4, the mounting plate includes a flat plate portion 21, a first connecting portion 22, a second connecting portion 23, and a third connecting portion 24, the first connecting portion 22 and the second connecting portion 23 are respectively fixed on both sides of the flat plate portion 21, the third connecting portion 24 is fixed on the lower portion of the flat plate portion 21, the first connecting portion 22, the second connecting portion 23, and the third connecting portion 24 are each provided by bending toward the inner plate body 1, and are welded on the convex portion 11 by a plurality of welding points, so that the mounting plate is fixed on the inner plate body 1. Since the first connecting portion 22, the second connecting portion 23 and the third connecting portion 24 are all bent toward the inner panel body 1, the flat panel portion 21 is made to protrude toward the Y direction, the depth of the installation cavity 10 in the Y direction can be increased, so that the protruding depth of the protruding portion 11 of the inner panel body 1 can be reduced, i.e., the punching depth of the protruding portion 11 of the inner panel body 1 in the Y direction can be reduced, under the condition that the depth of the installation cavity 10 in the Y direction is unchanged. Further, the possibility of forming wrinkles or cracks of the inner panel body 1 can be reduced, and the strength and rigidity of the inner panel body 1 can be improved, so that the side collision performance of the vehicle can be improved.

The mounting plate has a simple structure, can be manufactured by adopting an integral stamping mode, can be manufactured by adopting a die to integrally cast, and can also be used for welding or bonding the first connecting part 22, the second connecting part 23 and the third connecting part 24 on the flat plate part 21. In this embodiment, the mounting panel adopts the mode of integrative punching press to make, compares in welding or bonding's mode, can make the wholeness of mounting panel stronger, can improve holistic intensity and the rigidity of mounting panel. The mounting plate and the inner plate body 1 are manufactured separately, the mounting plate has more structure, material and thickness selectivity, for example, the mounting plate and the inner plate body 1 are made of high-strength steel materials, and the thickness of the mounting plate is higher than that of the inner plate body 1, so that the integral strength and rigidity of the mounting plate are further improved. The strength and rigidity of the fixing point of the seatbelt retractor 5 can be improved, so that the seatbelt retractor 5 can be more stably mounted on the mounting plate. And, the whole size of mounting panel is less, and the increase of mounting panel thickness is less to the influence of whole car weight.

As shown in fig. 2,4 and 8, the top of the flat plate portion 21 is provided with a mounting notch 211, the flat plate portion 21 is provided with a first mounting hole 212, the seat belt retractor 5 is placed in the mounting cavity 10, the L-shaped claw 51 of the seat belt retractor 5 is clamped in the mounting notch 211, and then the mounting bolt of the seat belt retractor 5 passes through the first mounting hole 212 and is screwed on the flat plate portion 21, so that the seat belt retractor 5 is fixed on the flat plate portion 21. The second mounting hole 12 and the limiting hole 13 of the seat belt retractor 5 are arranged on the upper portion of the mounting through hole 111 on the inner plate body 1, and the seat belt retractor 5 is connected with the inner plate body 1 through bolts. The overall strength of mounting panel is higher, and welds on the convex part 11 through a plurality of solder joints, and is better with the connection effect of inner panel body 1, and the safety belt retractor 5 is connected with inner panel body 1 through second mounting hole 12 simultaneously, can improve the intensity and the rigidity of mounting belt retractor fixed point.

As shown in fig. 8 to 10, the flat plate portion 21 is integrally punched to form a plurality of ribs 3 at positions close to the mounting notches 211, the ribs 3 protrude toward a side close to the seatbelt retractor 5, and the seatbelt retractor 5 is gradually attached to the ribs 3 in the process of being fixed by the mounting bolts. The protruding height of the protruding rib 3 is between 0.2 mm and 0.5mm, and the protruding rib 3 of this embodiment is 0.3mm, and the flat plate portion 21 is more closely attached to the seat belt retractor 5 through the protruding rib 3, so that the possibility of abnormal sound generated by vibration of the seat belt retractor 5 in the running process of the vehicle can be reduced.

As shown in fig. 9, 11 and 12, further, the flat plate portion 21 is integrally formed with the anti-misfolding side 4, and the L-shaped claw 51 of the seatbelt retractor 5 is located at a side of the anti-misfolding side 4 close to the vehicle head, that is, the anti-misfolding side 4 is located at a front portion of the L-shaped claw 51 in the X direction. The L-shaped claw 51 of the safety belt retractor 5 comprises an error-proofing plate and a claw fixed on the error-proofing plate, the distance between the first end of the error-proofing plate and the claw is short, the distance between the second end of the error-proofing plate and the claw is long, and when the distance between the error-proofing folded edge 4 and the mounting notch 211 is set to be that the first end of the error-proofing plate of the L-shaped claw 51 faces the error-proofing folded edge 4, namely, when the mounting direction of the safety belt retractor 5 is correct, the claw can be clamped in the mounting notch 211; when the second end of the error-proofing plate of the L-shaped claw 51 faces the error-proofing folded edge 4, that is, when the installation direction of the seatbelt retractor 5 is incorrect, the error-proofing plate interferes with the error-proofing folded edge 4, and the claw cannot be clamped in the installation notch 211. By the anti-misfolding edge 4 being matched with the L-shaped claw 51 of the safety belt retractor 5, the possibility that the safety belt retractors 5 on the left side and the right side of the vehicle are mutually reversely assembled by a worker can be reduced, and the assembly efficiency of the safety belt retractor 5 is improved.

As shown in fig. 5 and 8, further, the panel portion 21 is provided with a plurality of harness mounting holes 18 and trim panel mounting holes 16, so that the harness such as wires and signal wires of the trim panel mounting of the vehicle or other devices of the vehicle can pass through or be fixed, and the functions of the mounting plate are more abundant. The inner plate body 1 is also provided with an interior trim guard mounting hole 16 on one side of the mounting via hole 111, and a plurality of wire harness mounting holes 18 are also arranged around the mounting via hole 111 to provide mounting points or passing points for wire harnesses of interior trim panels and other devices. The inner plate body 1 is further provided with a collision sensor mounting hole 14 and a collision sensor limiting hole 15 on one side of the mounting via hole 111, so that the collision sensor can be conveniently mounted and positioned and mounted.

Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will fall within the scope of the present application.

Claims

1. The lower structure of the side wall B column inner plate is characterized by comprising an inner plate body (1) and an installation plate, wherein the lower part of the inner plate body (1) is provided with a convex part (11) protruding inwards, and the convex part (11) is provided with an installation through hole (111);

The mounting plate is fixed on the convex part (11) and covers part of the mounting through hole (111), and protrudes inwards, the mounting plate and the inner plate body (1) enclose to form a mounting cavity (10), and the safety belt retractor (5) is positioned in the mounting cavity (10) and mounted on the mounting plate.

2. The side pillar B inner panel lower structure according to claim 1, characterized in that the mounting plate includes a flat plate portion (21), a first connecting portion (22), a second connecting portion (23) and a third connecting portion (24), the first connecting portion (22) and the second connecting portion (23) are respectively provided on both sides of the flat plate portion (21), the third connecting portion (24) is provided on the lower portion of the flat plate portion (21), and the first connecting portion (22), the second connecting portion (23) and the third connecting portion (24) are bent toward the inner panel body (1) and welded on the convex portion (11) so that the flat plate portion (21) protrudes into the vehicle.

3. The side wall B pillar inner panel lower structure according to claim 2, characterized in that a mounting notch (211) is provided at the top of the flat plate portion (21), a first mounting hole (212) is provided in the flat plate portion (21), an L-shaped claw (51) of the seatbelt retractor (5) is clamped in the mounting notch (211), a mounting bolt of the seatbelt retractor (5) passes through the first mounting hole (212), and the seatbelt retractor (5) is mounted on the flat plate portion (21).

4. The lower structure of the side wall B pillar inner panel according to claim 3, characterized in that the flat plate part (21) is provided with an error-proof folded edge (4), and an L-shaped claw (51) of the safety belt retractor (5) is positioned at one side of the error-proof folded edge (4) close to a vehicle head;

When the installation direction of the safety belt retractor (5) is wrong, the L-shaped claw (51) of the safety belt retractor (5) is interfered with the error-proof folded edge (4), so that the L-shaped claw (51) of the safety belt retractor (5) cannot be clamped in the installation notch (211).

5. A side B pillar inner panel lower structure according to claim 3, wherein a bead (3) is provided at a position of the flat plate portion (21) close to the mounting notch (211), and the seatbelt retractor (5) is attached to the bead (3); and/or

The height of the convex ribs (3) is 0.2-0.5mm.

6. The side wall B pillar inner panel lower structure according to claim 1, wherein a burring (6) is provided at least a part of a wall of the mounting via (111).

7. The lower structure of the side wall B pillar inner panel according to claim 1, wherein a first welding edge (7) and a second welding edge (8) are respectively arranged on two sides of the inner panel body (1), and the first welding edge (7) and the second welding edge (8) are welded with the outer panel;

the bottom of the inner plate body (1) is provided with a third welding edge (9), and the third welding edge (9) is welded with the threshold beam.

8. The side wall B pillar inner panel lower structure according to claim 1, characterized in that a second mounting hole (12) and a limiting hole (13) of the seatbelt retractor (5) are provided on the inner panel body (1) at an upper portion of the mounting via hole (111);

And a collision sensor mounting hole (14) and a collision sensor limiting hole (15) are formed in one side, located at the mounting through hole (111), of the inner plate body (1).

9. The side wall B pillar inner panel lower structure according to claim 2, wherein an inner trim panel mounting hole (16) is provided in the inner panel body (1) on a side of the mounting via hole (111);

an inner plate body welding pair positioning hole (17) is formed in one side of the inner plate body (1) located at the mounting through hole (111);

A plurality of wire harness mounting holes (18) are formed in the inner plate body (1) and around the mounting through holes (111);

the flat plate part (21) is provided with a wire harness installation hole (18) and an interior guard plate installation hole (16).

10. A vehicle comprising the side bollard inner panel lower structure of any one of claims 1-9.