B-pillar trim and vehicle

Abstract

The B-pillar trim plate and vehicle claimed in the present application, the B-pillar trim plate extends along the height direction of the vehicle and is located outside the side air curtain, the B-pillar trim plate comprises a B-pillar trim plate body, and the B-pillar trim plate body is configured with a weakened portion, wherein a portion of the B-pillar trim plate body from the weakened portion towards the side air curtain is set as a turnover portion, and the turnover portion is configured to turn outwards in response to the pushing of the side air curtain after the point explosion, so that the turnover portion on the B-pillar trim plate body can turn outwards by inertia when the side air curtain explodes, thereby leaving a path for the unfolding of the side air curtain, so that the side air curtain after the point explosion can smoothly and quickly escape from the B-pillar trim plate, not only improving the smoothness and reliability of the unfolding of the side air curtain, but also avoiding the risk of rupture and splintering of the side air curtain caused by direct impact on the B-pillar trim plate, thereby providing higher level of safety protection for the passengers.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle interior decoration, and in particular relates to a B-pillar trim panel and a vehicle. Background Technology

[0002] Side curtain airbags are a type of airbag system installed inside the roof lining of a vehicle to protect the heads of front and rear passengers. When a vehicle is involved in a side collision or rollover, the system quickly deploys the side curtain airbags based on sensor signals. The side curtain airbags then extend downwards from the edge of the roof along the side window area, detaching from interior trim components such as the B-pillar trim panel during deployment, thus forming an effective protective barrier between the occupants and the windows and vehicle body structure.

[0003] Currently, vehicles generally reinforce the B-pillar trim to prevent it from shattering during the deployment of side curtain airbags, thus avoiding secondary injuries to occupants from flying debris. However, this simple "hard-line" reinforcement strategy has inherent contradictions: on the one hand, excessive reinforcement may lead to excessive wrapping force of the B-pillar trim around the airbag, causing the side curtain airbag deployment process to become stuck; on the other hand, if the instantaneous impact force of the side curtain airbag deployment still far exceeds the limit that the reinforced B-pillar trim can withstand, the B-pillar trim still faces the risk of shattering. Both of these situations will interfere with the normal deployment shape and timing of the side curtain airbags, ultimately adversely affecting the safety protection of occupants. Utility Model Content

[0004] In view of this, it is necessary to provide a B-pillar trim panel and a vehicle for solving the above-mentioned technical problems.

[0005] A B-pillar trim panel extends along the vehicle height direction and is located opposite to the side curtain airbag; the B-pillar trim panel includes a B-pillar trim panel body, the B-pillar trim panel body is configured with a weakening portion, wherein a portion of the B-pillar trim panel body from the weakening portion toward the side curtain airbag is configured as a flip-over portion, and the flip-over portion is configured to flip outward in response to the pushing of the side curtain airbag after detonation.

[0006] Understandably, the weakened B-pillar trim panel creates a flip-out section that allows it to flip outwards when the side curtain airbags deploy, thus creating a path for the airbags to unfold. This ensures that the deployed side curtain airbags can smoothly and quickly detach from the B-pillar trim panel, improving not only the smoothness and reliability of the side curtain airbag deployment but also fundamentally preventing the risk of breakage and fragmentation caused by direct impact with the B-pillar trim panel, thereby providing a higher level of safety protection for occupants.

[0007] In one embodiment, the weakening portion is configured as a groove, and the groove is disposed on the inner sidewall of the B-pillar trim panel body.

[0008] Understandably, by using a groove to guide the B-pillar trim panel, the structural weakness is reduced, which reduces the manufacturing difficulty of the B-pillar trim panel while ensuring that the flip-up part can be flipped, thus making the B-pillar trim panel both functional and easy to manufacture.

[0009] In one embodiment, the portion of the B-pillar trim panel located at the groove is configured as a flip-up connection portion, which can be flipped with the flip-up connection portion as the fold line. The thickness of the flip-connecting part is set to T1, and the thickness of the flip-connecting part is set to T2, wherein T2×7 / 10≤T1≤T2×3 / 4.

[0010] In one embodiment, the groove extends along the length of the vehicle, and the two ends of the groove are respectively located at the side edges of the B-pillar trim body.

[0011] In one embodiment, the dimension of the flipping part in the vehicle height direction is set as h, where h ≥ 50 mm.

[0012] In one embodiment, the B-pillar trim panel body further includes a B-pillar trim panel main body, and the flipping part is flip-connected to the B-pillar trim panel main body; A pull strap is also connected between the flip-up part and the B-pillar trim panel body. The pull strap is located on the inner side of the B-pillar trim panel body and is used to limit the flip-up part to the B-pillar trim panel body after flipping.

[0013] Understandably, by introducing a pull strap to limit the flipped part to the B-pillar trim panel, the redundant degrees of freedom of the flipped part can be effectively constrained, preventing it from breaking and flying off due to excessive force under the huge impact of the side curtain airbag detonation. This eliminates the risk of potential secondary injury and provides a higher level of safety for the occupants.

[0014] In one embodiment, a first fixing seat is provided on the first inner sidewall of the flipping part, and a second fixing seat is provided on the second inner sidewall of the B-pillar trim panel body, and the second fixing seat and the first fixing seat are connected by the pull strap.

[0015] In one embodiment, the pull strap has a buckle at both ends after passing around the second fixing seat, and the buckle is connected to the first fixing seat in a snap-fit ​​manner; Alternatively, the pull strap has buckles at both ends after passing over the first fixing seat, and the buckles are connected to the second fixing seat in a snap-fit ​​manner.

[0016] It is understandable that the pull strap is connected between the first and second fixing seats through a snap-fit ​​design, which facilitates the assembly of the pull strap between the first and second fixing seats and helps to reduce the overall manufacturing cost of the B-pillar trim panel.

[0017] In one embodiment, the number of the pull straps is configured to be multiple, and the multiple pull straps are arranged sequentially at intervals along the length of the vehicle.

[0018] Understandably, using multiple straps to hold the flipped part to the B-pillar trim panel after it flips over can evenly distribute the impact load after the flipped part flips over, effectively avoiding stress concentration that may be caused by single-point force, and thus reliably preventing the flipped part from flying off.

[0019] This application also provides a vehicle including the aforementioned B-pillar trim panel.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: The B-pillar trim panel and vehicle for which this application seeks protection utilize a flip-out portion formed by the weakened B-pillar trim panel body. This allows the panel to flip outwards upon deployment of the side curtain airbags, thus creating a path for the side curtain airbags to unfold. This enables the deployed side curtain airbags to smoothly and quickly detach from the B-pillar trim panel, improving not only the smoothness and reliability of side curtain airbag deployment but also fundamentally preventing the risk of rupture and fragmentation caused by direct impact of the side curtain airbags on the B-pillar trim panel. This provides a higher level of safety protection for occupants. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural schematic diagram of the B-pillar trim panel provided in this application.

[0023] Figure 2 for Figure 1 Enlarged view of a portion of the image.

[0024] Figure 3 This is a structural schematic diagram of another state of the B-pillar trim panel provided in this application.

[0025] Reference numerals: 100, B-pillar trim panel; 10, B-pillar trim panel body; 11, flip-up part; 12, B-pillar trim panel main body; 13, flip-up connecting part; 110, weakening part; 111, groove; 20, pull strap; 21, first fixing seat; 22, second fixing seat; 23, buckle; 101, inner sidewall; 1011, first inner sidewall; 1012, second inner sidewall; 102, side edge. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] The B-pillar trim panel 100 claimed in this application is used in a vehicle equipped with side curtain airbags (not shown). It extends along the Z direction of vehicle height and is located on the outer side of the side curtain airbag. It is an important part of the car interior. Specifically, it can be directly covered on the inner surface of the vehicle B-pillar by means of clips, screws or magnetic attraction, and can cover the storage of the side curtain airbag at the B-pillar position of the vehicle.

[0030] like Figures 1 to 3As shown, the B-pillar trim panel 100 provided in this application includes a B-pillar trim panel body 10. The B-pillar trim panel body 10 is constructed with a weakening portion 110. The portion of the B-pillar trim panel body 10 from the weakening portion 110 toward the side curtain airbag is set as a flipping portion 11. The flipping portion 11 is configured to flip outward in response to the pushing of the side curtain airbag after detonation. That is, the flipping portion 11 on the B-pillar trim panel body 10 can flip outward in the same way when the side curtain airbag is detonated, thereby making way for the deployment of the side curtain airbag. This allows the side curtain airbag to smoothly and quickly detach from the B-pillar trim panel 100 after detonation. This not only improves the smoothness and reliability of the side curtain airbag deployment, but also fundamentally avoids the risk of rupture and fragmentation caused by the side curtain airbag directly impacting the B-pillar trim panel 100, thereby providing a higher level of safety protection for the occupants.

[0031] Here, the aforementioned flipping part 11 flips outward under the push of the side curtain airbag after detonation, specifically, the flipping part 11 flips outward in a direction away from the vehicle's B-pillar.

[0032] It should be noted that the B-pillar trim panel 100 of this application weakens the structure of the weakened part 110 on the B-pillar trim panel body 10, while the structural strength of the flipped part 11 remains unchanged. This makes it possible for the flipped part 11 on the B-pillar trim panel body 10 to flip outward with the weakened part 110 as the fold line when it is pushed by the rear air curtain after it is deployed.

[0033] like Figure 1 , Figure 2 As shown, in one embodiment, the weakening portion 110 is configured as a groove 111, and the groove 111 is provided on the inner sidewall 101 of the B-pillar trim panel body 10. That is to say, this embodiment uses the method of opening a groove 111 on the inner sidewall 101 of the B-pillar trim panel body 10 to achieve a guiding structural weakening. This allows the B-pillar trim panel body 10 to simplify the mold design required for manufacturing the B-pillar trim panel 100 while ensuring that the flipping portion 11 can be flipped. This reduces the manufacturing difficulty of the B-pillar trim panel 100, thereby enabling the B-pillar trim panel 100 to balance functionality and manufacturing convenience.

[0034] Here, the inner wall 101 of the B-pillar trim panel body 10 is specifically the side of the B-pillar trim panel 100 that is installed in the vehicle and faces the body sheet metal. That is, the inner wall 101 of the B-pillar trim panel body 10 is located in an invisible area inside the vehicle. Therefore, the structural arrangement of the groove 111 on the B-pillar trim panel body 10 will not affect the overall appearance of the B-pillar trim panel 100.

[0035] It should be noted that the weakening part 110 on the B-pillar trim panel body 10 is not limited to the groove 111 shown in the figure. For those skilled in the art, the weakening part 110 can also be made of a material with lower structural strength, which will not be elaborated here.

[0036] like Figure 3 As shown, the part on the B-pillar trim panel body 10 located at the groove 111 is set as a flip-up connecting part 13. The flip-up part 11 can be flipped with the flip-up connecting part 13 as the flip line. Furthermore, the thickness of the flip-up connecting part 13 is set as T1, and the thickness of the flip-up part 11 is set as T2, wherein T2×7 / 10≤T1≤T2×3 / 4.

[0037] Here, the thickness T1 of the flip-connecting part 13 can account for 70%, 72%, 73.4% or 75% of the thickness T2 of the flip-connecting part 11. Specifically, the groove 111 can be set as a triangle.

[0038] like Figures 1 to 3 As shown, in this embodiment, the groove 111 extends along the length of the vehicle, and both ends of the groove 111 are respectively located on the side edges 102 of the B-pillar trim panel body 10. That is, in this embodiment, the groove 111 is arranged laterally on the B-pillar trim panel body 10, which facilitates the folding part 11 to fold under the push of the side curtain airbag. Of course, in other embodiments, the groove 111 may also be composed of multiple spaced slots arranged at intervals along the length X of the vehicle, as long as the folding part 11 can fold outward under the push of the side curtain airbag after deployment, which will not be elaborated here.

[0039] like Figure 1 As shown, in this embodiment, the size of the flipping part 11 in the vehicle height direction Z is set to h, where h≥50mm, so that the B-pillar trim panel 100 can make enough path for the deployment of the side curtain airbag by using the flipping part 11 after folding.

[0040] Here, the height h of the flipping part 11 in the vehicle height direction Z can be specifically set to 50mm, 52mm, 55mm, 56mm, etc. It should be noted that the flipping part 11 is not designed with mounting points for fixing the B-pillar trim panel 100 to the vehicle, which will not be elaborated here.

[0041] like Figures 1 to 3 As shown, in one embodiment, the B-pillar trim panel body 10 also includes a B-pillar trim panel main body 12, and the flipping part 11 is flip-connected to the B-pillar trim panel main body 12. Furthermore, a pull strap 20 is connected between the flipping part 11 and the B-pillar trim panel main body 12. The pull strap 20 is disposed on the inner side of the B-pillar trim panel main body 10 and is used to limit the flipped part 11 to the B-pillar trim panel main body 12. This can effectively constrain the redundant degrees of freedom of the flipping part 11 and prevent it from breaking and flying off due to excessive force under the huge impact of the side curtain airbag detonation, thereby eliminating the risk of potential secondary injury and providing a higher level of safety for the occupants.

[0042] Here, the inner side of the B-pillar trim panel body 10, specifically the side of the B-pillar trim panel 100 that is installed and applied to the vehicle body sheet metal, ensures that the structural arrangement of the pull strap 20 on the B-pillar trim panel body 10 does not affect the overall appearance of the B-pillar trim panel 100.

[0043] In this design, a first fixing seat 21 is provided on the first inner sidewall 1011 of the flip-up part 11, and a second fixing seat 22 is provided on the second inner sidewall 1012 of the B-pillar trim panel body 12. The second fixing seat 22 and the first fixing seat 21 are connected by a pull strap 20, thereby achieving the assembly connection of the pull strap 20 on the flip-up part 11 and the B-pillar trim panel body 12. Of course, in other embodiments, the pull strap 20 can also be directly fixed to the flip-up part 11 or the B-pillar trim panel body 12, which will not be elaborated here.

[0044] Here, the first fixing seat 21 is integrated with the flip part 11, and the second fixing seat 22 is integrated with the B-pillar trim panel body 12. Specifically, the B-pillar trim panel 100 can be integrally injection molded from plastic material. The material of the pull strap 20 can be high-strength polyester fiber, nylon fiber, or metal cable, etc., and the pull strap 20 can be additionally assembled between the first fixing seat 21 and the second fixing seat 22.

[0045] like Figure 2 As shown, in this embodiment, the pull strap 20 has buckles 23 connected to both ends after passing through the second fixing seat 22, and the buckles 23 are connected to the first fixing seat 21 in a snap-fit ​​manner. Specifically, the two ends of the pull strap 20 can be fixed to the buckles 23 by screws, adhesive, or other means. In other words, in this embodiment, the pull strap 20 achieves its connection between the first fixing seat 21 and the second fixing seat 22 through a snap-fit ​​design. This facilitates the assembly of the pull strap 20 between the first fixing seat 21 and the second fixing seat 22, and helps reduce the overall manufacturing cost of the B-pillar trim panel 100. Of course, in other embodiments, the pull strap 20 may also have buckles 23 connected to both ends after passing through the first fixing seat 21, and the buckles 23 may be connected to the second fixing seat 22 in a snap-fit ​​manner; this will not be elaborated upon here.

[0046] like Figure 1 , Figure 2 As shown, in this embodiment, the number of pull straps 20 is configured to be multiple, and the multiple pull straps 20 are arranged sequentially at intervals along the length direction X of the vehicle, so that the multiple pull straps 20 can jointly limit the flipped part 11 to the B-pillar trim panel body 12 after flipping. This can make the impact load of the flipped part 11 after flipping evenly distributed, effectively avoiding stress concentration that may be caused by single-point force, thereby reliably preventing the flipped part 11 from flying off.

[0047] Here, the number of pull straps 20 is configured as two. Of course, in other embodiments, the number of pull straps 20 can also be set to three, four, or even more, which will not be elaborated here.

[0048] In addition, this application also provides a vehicle including the aforementioned B-pillar trim panel 100.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A B-pillar trim panel, extending along the vehicle height direction and positioned opposite the side curtain airbag; characterized in that, The B-pillar trim panel (100) includes a B-pillar trim panel body (10), which has a weakening portion (110). The portion of the B-pillar trim panel body (10) from the weakening portion (110) toward the side air curtain is set as a flip portion (11), and the flip portion (11) is configured to flip outward in response to the pushing of the side air curtain after detonation.

2. The B-pillar trim panel according to claim 1, characterized in that, The weakening part (110) is configured as a groove (111), and the groove (111) is provided on the inner sidewall (101) of the B-pillar trim panel body (10).

3. The B-pillar trim panel according to claim 2, characterized in that, The part of the B-pillar trim panel body (10) located at the groove (111) is set as a flip-up connection part (13), and the flip-up part (11) can be flipped with the flip-up connection part (13) as the fold line. The thickness of the flip-connecting part (13) is set to T1, and the thickness of the flip-connecting part (11) is set to T2, wherein T2×7 / 10≤T1≤T2×3 / 4.

4. The B-pillar trim panel according to claim 2, characterized in that, The groove (111) extends along the length of the vehicle, and the two ends of the groove (111) are respectively located at the side edge (102) of the B-pillar trim panel body (10).

5. The B-pillar trim panel according to claim 2, characterized in that, The dimension of the flipping part (11) in the vehicle height direction is set as h, where h≥50mm.

6. The B-pillar trim panel according to claim 1, characterized in that, The B-pillar trim panel body (10) also includes a B-pillar trim panel main body (12), and the flipping part (11) is flipped to be connected to the B-pillar trim panel main body (12). Furthermore, a pull strap (20) is connected between the flip-up part (11) and the B-pillar trim panel body (12). The pull strap (20) is located on the inner side of the B-pillar trim panel body (10) and is used to limit the flip-up part (11) to the B-pillar trim panel body (12) after flipping.

7. The B-pillar trim panel according to claim 6, characterized in that, A first fixing seat (21) is provided on the first inner sidewall (1011) of the flipping part (11), and a second fixing seat (22) is provided on the second inner sidewall (1012) of the B-pillar trim panel body (12), and the second fixing seat (22) and the first fixing seat (21) are connected by the pull strap (20).

8. The B-pillar trim panel according to claim 7, characterized in that, The pull strap (20) has buckles (23) at both ends after passing through the second fixing seat (22), and the buckles (23) are connected to the first fixing seat (21) in a snap-fit ​​manner; Alternatively, the pull strap (20) has buckles (23) connected to both ends after passing around the first fixing seat (21), and the buckles (23) are connected to the second fixing seat (22) in a snap-fit ​​manner.

9. The B-pillar trim panel according to claim 7, characterized in that, The number of the pull straps (20) is configured to be multiple, and the multiple pull straps (20) are arranged sequentially at intervals along the length of the vehicle.

10. A vehicle, characterized in that, Includes the B-pillar trim panel (100) as described in any one of claims 1 to 9.

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