Automobile B-pillar structure and automobile

Abstract

The utility model discloses a kind of automobile B column structure and car, including B column inner plate, B column outer plate and B column outer plate reinforcing plate, the two side edges of B column inner plate are equipped with the first flanging extending to B column outer plate direction, the two side edges of B column outer plate are equipped with the second flanging extending to B column inner plate direction, the first flanging of B column inner plate and the second flanging of B column outer plate are welded, cavity structure is formed between B column inner plate and B column outer plate, B column outer plate reinforcing plate is welded in the inner wall surface of B column outer plate, the two side edges of B column outer plate reinforcing plate are equipped with third flanging, third flanging extends to B column inner plate direction along second flanging, the edge of third flanging exceeds B column outer plate, and gap cooperation with B column inner plate. Based on the third flanging extension of B column outer plate reinforcing plate, B column outer plate reinforcing plate can be abutted on B column inner plate when deformation occurs, to form a mutually supporting, mutually reinforcing reinforcing structure with B column inner plate, greatly strengthen the ability of B column resistance to deformation.

Description

Technical Field

[0001] This utility model is applicable to the automotive field, and in particular relates to an automotive B-pillar structure and an automotive. Background Technology

[0002] The B-pillar is a vertical beam in a car, located between the front and rear seats, extending from the roof to the floor. Because the door latches for both the front and rear doors are mounted on the B-pillar, and the entire door system is supported by the door lock, upper hinge, and lower hinge, the B-pillar not only supports the roof but also provides structural support for the front and rear doors. Additionally, it houses other components such as the front seatbelts and sometimes wiring harnesses. Therefore, the cross-sectional shape of the B-pillar in modern cars is relatively complex, typically constructed from multiple stamped steel sheets welded together.

[0003] In existing solutions, the B-pillar is generally made up of the outer B-pillar panel and the inner B-pillar panel welded separately. The outer B-pillar panel consists of the outer B-pillar panel body, the outer B-pillar panel reinforcement plate and related mounting brackets. The inner B-pillar panel consists of the inner B-pillar panel body, the inner B-pillar panel reinforcement plate and related component mounting brackets. After forming separate assemblies, they are finally spot-welded together to form a unified whole.

[0004] When vehicles undergo roof crush tests, especially those with frameless doors, deformation often occurs due to insufficient strength of the upper structure, resulting in failure to meet strength requirements.

[0005] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content

[0006] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a car B-pillar structure and a car.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] In a first aspect, a car B-pillar structure includes an inner B-pillar panel, an outer B-pillar panel, and a reinforcing plate for the outer B-pillar panel. The inner B-pillar panel has first flanges extending towards the outer B-pillar panel on both sides of its sides. The outer B-pillar panel has second flanges extending towards the inner B-pillar panel on both sides of its sides. The first flanges of the inner B-pillar panel and the second flanges of the outer B-pillar panel are welded together. A cavity structure extending along the height direction is formed between the inner B-pillar panel and the outer B-pillar panel. The reinforcing plate for the outer B-pillar panel is welded to the inner wall surface of the outer B-pillar panel. The reinforcing plate for the outer B-pillar panel has third flanges on both sides of its sides. The third flanges extend towards the inner B-pillar panel along the second flanges, and the edges of the third flanges extend beyond the outer B-pillar panel and are clearance-fitted with the inner B-pillar panel.

[0009] In conjunction with the first aspect, some implementations of the first aspect also include a B-pillar inner panel reinforcement plate, which is welded to the inner wall of the B-pillar inner panel. The two sides of the B-pillar inner panel reinforcement plate are provided with fourth flanges, which extend along the first flanges toward the B-pillar outer panel. The third flanges extend to the front of the B-pillar inner panel and terminate therein. The edge of the third flanges is in clearance fit with the B-pillar inner panel reinforcement plate.

[0010] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the third flanges on both sides of the B-pillar outer panel reinforcement plate form an angle that expands outward to both sides with the B-pillar outer panel reinforcement plate body, and the third flanges extend towards the root position of the fourth flange.

[0011] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the edge of the first flange of the inner B-pillar is provided with a first welding flange extending away from the cavity structure, and the edge of the second flange of the outer B-pillar is provided with a second welding flange extending away from the cavity structure, and the first welding flange of the first flange and the second welding flange of the second flange are welded together.

[0012] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the third flange is provided with raised reinforcing ribs, and the third flange is welded to the second flange.

[0013] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the outer B-pillar panel includes an upper plate and a lower plate, wherein the lower end of the upper plate and the upper end of the lower plate overlap and are welded to form the outer B-pillar panel.

[0014] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the lower plate of the outer panel of the B-pillar is provided with a first crease extending laterally to guide deformation at the position where it overlaps with the upper plate of the outer panel of the B-pillar.

[0015] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the outer plate of the B-pillar is provided with a deformation guide groove on the inner side of the position where the lower plate of the outer plate of the B-pillar overlaps with the upper plate of the outer plate of the B-pillar.

[0016] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the bottom of the B-pillar inner panel is provided with a seat belt mounting hole, the B-pillar inner panel reinforcing plate includes an upper plate and a lower plate, the upper plate is disposed at the top of the B-pillar inner panel, the lower plate is disposed on the B-pillar inner panel at the position corresponding to the seat belt mounting hole, and the lower plate is provided with a sill connection portion.

[0017] Second, an automobile, including the automobile B-pillar structure described in any implementation of the first aspect.

[0018] One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of this utility model, by extending the third flange of the B-pillar outer panel reinforcement plate, the structural strength can be effectively increased. When deformation occurs, the B-pillar outer panel reinforcement plate can abut against the B-pillar inner panel, thereby forming a mutually supportive and mutually reinforcing reinforcement structure with the B-pillar inner panel, which greatly enhances the B-pillar's ability to resist deformation. At the same time, under normal conditions, there is a gap between the third flange and the B-pillar inner panel, forming a gap fit, avoiding abnormal noise caused by contact, and ultimately maximizing the benefits.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of an embodiment of the automotive B-pillar structure of this utility model;

[0022] Figure 2 yes Figure 1 Cross-sectional view at point AA;

[0023] Figure 3 This is an exploded view of an embodiment of the automotive B-pillar structure of this utility model. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0026] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0027] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0028] The B-pillar extends from the roof to the bottom of the vehicle, forming a longitudinal support structure. Its primary function is to support the vehicle's side structure, preventing severe deformation of the body during side collisions and thus protecting passengers from injury. Furthermore, the B-pillar is one of the seatbelt anchor points, ensuring effective restraint for passengers in emergencies and reducing injuries caused by inertia. In addition to its safety functions, the B-pillar also acts as a door frame, closely connecting to the door.

[0029] See Figure 1 , Figure 2 , Figure 3 This utility model provides a car B-pillar structure, including an inner B-pillar panel 100, an outer B-pillar panel 200, and an outer B-pillar reinforcing plate 300. The inner B-pillar panel 100 has first flanges 101 extending towards the outer B-pillar panel 200 on both sides, and second flanges 201 extending towards the inner B-pillar panel 100 on both sides. The first flanges 101 of the inner B-pillar panel 100 and the second flanges 201 of the outer B-pillar panel 200 are welded together. The inner B-pillar panel 100 is connected to... A cavity structure extending along the height direction is formed between the outer B-pillar panels 200, while the inner B-pillar panel 100 and the outer B-pillar panel 200 form the wall of the cavity structure. The outer B-pillar panel reinforcing plate 300 is welded to the inner wall surface of the outer B-pillar panel 200. The two sides of the outer B-pillar panel reinforcing plate 300 are provided with third flanges 301. The third flanges 301 extend along the second flanges 201 toward the inner B-pillar panel 100. The edge of the third flanges 301 extends beyond the outer B-pillar panel 200 and is clearance-fitted with the inner B-pillar panel 100.

[0030] Combination Figure 1 , Figure 2 , Figure 3 In the technical solution of this utility model, by extending the third flange 301 of the B-pillar outer panel reinforcement plate 300, the structural strength can be effectively increased. When deformation occurs, the B-pillar outer panel reinforcement plate 300 can abut against the B-pillar inner panel 100, thereby forming a mutually supportive and mutually reinforcing reinforcement structure with the B-pillar inner panel 100, which greatly enhances the B-pillar's resistance to deformation. It is particularly suitable for models with frameless doors. At the same time, under normal conditions, there is a gap between the third flange 301 and the B-pillar inner panel 100 to form a gap fit, avoiding abnormal noise caused by contact, and ultimately maximizing the benefits.

[0031] In some embodiments, see Figure 2 , Figure 3 The automotive B-pillar structure also includes an inner B-pillar reinforcing plate 400, which is welded to the inner wall of the inner B-pillar panel 100. The inner B-pillar reinforcing plate 400 has fourth flanges 401 on both sides, extending from the first flange 101 towards the outer B-pillar panel 200. A third flange 301 extends to the front of the inner B-pillar panel 100 and terminates therein, with its edge fitting against the inner B-pillar reinforcing plate 400 with a clearance. In this embodiment, by adding the inner B-pillar reinforcing plate 400, the structural strength of the inner side of the automotive B-pillar structure is effectively improved. Simultaneously, the inner B-pillar reinforcing plate 400 and the outer B-pillar reinforcing plate 300 abut against each other during deformation, forming a mutually supporting and reinforcing structure, effectively increasing the overall structural strength of the B-pillar.

[0032] In the embodiments of this utility model, the B-pillar inner panel 100, the B-pillar outer panel 200, the B-pillar outer panel reinforcing plate 300, and the B-pillar inner panel reinforcing plate 400 can all be formed by sheet metal stamping.

[0033] In some embodiments, see Figure 2 The third flanges 301 on both sides of the B-pillar outer panel reinforcement plate 300 form an outwardly expanding angle with the body of the B-pillar outer panel reinforcement plate 300. For example, the outer side of the third flange 301 of the B-pillar outer panel reinforcement plate 300 is set at an angle of 3° to 12° with the root. The third flange 301 extends towards the root position of the fourth flange 401. In this embodiment, the cross-section of the third flange 301 of the B-pillar outer panel reinforcement plate 300 is formed in an outwardly expanding shape. When deformation occurs, the B-pillar outer panel reinforcement plate 300 deforms inward and directly abuts against the root position of the fourth flange 401, thereby forming a support limit and preventing the third flange 301 of the B-pillar outer panel reinforcement plate 300 from sliding laterally on the surface of the B-pillar inner panel reinforcement plate 400.

[0034] In some embodiments, see Figure 1 , Figure 2 , Figure 3The first flange 101 of the B-pillar inner panel 100 has a first welding flange 102 extending away from the cavity structure, and the second flange 201 of the B-pillar outer panel 200 has a second welding flange 202 extending away from the cavity structure. The cross-sectional shapes of the B-pillar inner panel 100 and the B-pillar outer panel 200 are approximately Z-shaped. The first welding flange 102 of the first flange 101 and the second welding flange 202 of the second flange 201 are welded together and form a cavity structure inside.

[0035] In some embodiments, see Figure 3 The third flange 301 is provided with a raised reinforcing rib 302. The third flange 301 is welded to the second flange 201. In this embodiment, the reinforcing rib 302 forms a reinforcing feature, which further improves the structural strength of the car B-pillar structure. In particular, it can form a more stable support structure with the B-pillar inner panel reinforcing plate 400 when deformation occurs.

[0036] In some embodiments, see Figure 3 The B-pillar outer panel 200 includes an upper B-pillar panel 203 and a lower B-pillar panel 204. The lower end of the upper B-pillar panel 203 and the upper end of the lower B-pillar panel 204 overlap and are welded to form the B-pillar outer panel 200. In this embodiment, the B-pillar outer panel 200 is configured as a structure formed by two separate components connected to each other. When a side collision occurs at the bottom of the B-pillar outer panel 200, the upper B-pillar panel 203 and the lower B-pillar panel 204 can separate or deform at the overlap position, preventing the collision deformation from being transmitted upward along the B-pillar outer panel 200, thereby improving the safety of the vehicle occupants.

[0037] Further, see Figure 3 The lower outer panel 204 of the B-pillar has a first crease 205 extending laterally to guide deformation at the position where it overlaps with the upper outer panel 203 of the B-pillar. The first crease 205 can guide the lower outer panel 204 and the upper outer panel 203 of the B-pillar to deform at the overlap position during a collision, preventing the collision deformation from being transmitted upward along the outer panel 200 of the B-pillar, thereby improving the safety of the occupants.

[0038] Further, see Figure 3 The B-pillar outer panel reinforcement plate 300 has a deformation guide groove 302 on its inner side at the position where the lower B-pillar outer panel 204 overlaps with the upper B-pillar outer panel 203. In this embodiment, the B-pillar outer panel reinforcement plate 300 is provided with a deformation guide groove 302 corresponding to the B-pillar outer panel 200, which allows the B-pillar outer panel reinforcement plate 300 to bend at the deformation guide groove 302 during a collision, thereby preventing collision deformation from being transmitted upward along the B-pillar outer panel reinforcement plate 300, thus improving the safety of the vehicle occupants.

[0039] In some embodiments, see Figure 3The bottom of the B-pillar inner panel 100 is provided with a seat belt mounting hole 103. The B-pillar inner panel reinforcing plate 400 includes an upper B-pillar reinforcing plate 402 and a lower B-pillar reinforcing plate 403. The upper B-pillar reinforcing plate 402 is located at the top of the B-pillar inner panel 100 to enhance the strength of the top of the B-pillar, especially at the window area. The lower B-pillar reinforcing plate 403 is located on the B-pillar inner panel 100 at the position corresponding to the seat belt mounting hole 103, and has a sill connection part 404. The lower B-pillar reinforcing plate 403 is used to reinforce the B-pillar inner panel 100 to compensate for the strength loss caused by the seat belt mounting hole 103.

[0040] An embodiment of this utility model also provides a car, including the car B-pillar structure of any of the above embodiments.

[0041] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A car B-pillar structure, characterized in that, The device includes an inner B-pillar panel, an outer B-pillar panel, and a reinforcing plate for the outer B-pillar panel. The inner B-pillar panel has first flanges extending towards the outer B-pillar panel on both sides, and the outer B-pillar panel has second flanges extending towards the inner B-pillar panel on both sides. The first flanges of the inner B-pillar panel and the second flanges of the outer B-pillar panel are welded together, forming a cavity structure extending along the height direction between the inner and outer B-pillar panels. The reinforcing plate for the outer B-pillar panel is welded to the inner wall surface of the outer B-pillar panel. The reinforcing plate for the outer B-pillar panel has third flanges on both sides, extending towards the inner B-pillar panel along the second flanges. The edges of the third flanges extend beyond the outer B-pillar panel and are clearance-fitted with the inner B-pillar panel.

2. The automotive B-pillar structure according to claim 1, characterized in that, It also includes a B-pillar inner panel reinforcement plate, which is welded to the inner wall of the B-pillar inner panel. The two sides of the B-pillar inner panel reinforcement plate are provided with a fourth flange. The fourth flange extends along the first flange toward the B-pillar outer panel. The third flange extends to the front of the B-pillar inner panel and ends there. The edge of the third flange is in clearance fit with the B-pillar inner panel reinforcement plate.

3. The automotive B-pillar structure according to claim 2, characterized in that, The third flange on both sides of the outer edge of the B-pillar reinforcement plate forms an angle with the B-pillar outer plate reinforcement plate body that expands outward to both sides, and the third flange extends towards the root position of the fourth flange.

4. The automotive B-pillar structure according to claim 1, characterized in that, The edge of the first flange of the inner B-pillar panel is provided with a first welding flange extending away from the cavity structure, and the edge of the second flange of the outer B-pillar panel is provided with a second welding flange extending away from the cavity structure. The first welding flange of the first flange and the second welding flange of the second flange are welded together.

5. The automotive B-pillar structure according to claim 2, characterized in that, The third flange is provided with raised reinforcing ribs, and the third flange is welded to the second flange.

6. The automotive B-pillar structure according to claim 1, characterized in that, The outer panel of the B-pillar includes an upper plate and a lower plate. The lower end of the upper plate and the upper end of the lower plate overlap and are welded to form the outer panel of the B-pillar.

7. The automotive B-pillar structure according to claim 6, characterized in that, The lower plate of the outer panel of the B-pillar has a first crease that extends laterally to guide deformation at the position where it overlaps with the upper plate of the outer panel of the B-pillar.

8. The automotive B-pillar structure according to claim 7, characterized in that, The outer panel reinforcement plate of the B-pillar has a deformation guide groove on the inner side of the position where the lower plate of the outer panel of the B-pillar overlaps with the upper plate of the outer panel of the B-pillar.

9. The automotive B-pillar structure according to claim 2, characterized in that, The bottom of the B-pillar inner panel is provided with a seat belt mounting hole. The B-pillar inner panel reinforcement plate includes an upper plate and a lower plate. The upper plate is located at the top of the B-pillar inner panel, and the lower plate is located on the B-pillar inner panel at the position corresponding to the seat belt mounting hole. The lower plate is provided with a sill connection part.

10. A car, characterized in that, The B-pillar structure of the automobile includes any one of claims 1 to 9.

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