Column B upper plaque

By increasing the thickness of large local surfaces and designing transitional wall thickness, the problem of difficult demolding of the B-pillar trim panel mold was solved, achieving smooth demolding, reduced costs, and increased strength.

CN223533442UActive Publication Date: 2025-11-11SHANGHAI QIFENG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520016528.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-11-11
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The existing mold design for the B-pillar trim panel makes it impossible to demold the flange structure, especially the transition wall thickness between the flange and the corner B-side cannot be adjusted, resulting in demolding difficulties.

Method used

By increasing the wall thickness of large local areas to 2.8 mm and designing a transition wall thickness of 0.5 mm, the mold structure is optimized to meet the demolding requirements, while strengthening the strength and rigidity in key areas.

Benefits of technology

This process enabled smooth demolding, reduced production costs, and improved the overall strength and impact resistance of the decorative panels, while also facilitating installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a B-pillar upper plaque, and relates to the technical field of automobiles. Comprising a B-pillar upper plaque body, turnups are arranged on two sides of the B-pillar upper plaque body, four corner B surfaces are arranged between the turnups, the thickness of a transition wall between each turnup and the corresponding corner B surface 3 is 0.5 mm, and the thickness of a local large surface wall between each turnup and the corresponding corner B surface is 2.8 mm. The structure is reasonable in design, the mold requirement is met by increasing the thickness of local large fabric and reducing the mold stripping angle, mold stripping is convenient, and the mold stripping effect is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to a B-pillar trim panel. Background Technology

[0002] As automobiles become increasingly popular as a means of transportation, people have higher and higher requirements for the comfort and aesthetics of their interiors. The B-pillar trim panel, as an indispensable part of automobiles, is mainly used to cover the sheet metal parts of the white body and enhance the aesthetics of the interior.

[0003] like Figure 1 As shown, the flange height around the B-pillar trim panel is 3.5mm. The internal structure is ejected at an angle in the direction of the arrow, and the flange structure cannot be ejected. At the upper and lower corners, the height difference between surface 3 (B-side) and flange 2 is 0.8mm, and the direct transition wall thickness (width 30mm) prevents ejection (the ejection line cannot be adjusted upwards due to the influence of the sliding plate installation structure).

[0004] Therefore, this utility model designs a B-pillar trim panel that can meet the mold requirements. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a B-pillar trim panel with a reasonable structural design. By increasing the thickness of the local large material and reducing the demolding angle, the mold requirements are met, which facilitates demolding and ensures the demolding effect.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a B-pillar trim panel, comprising a B-pillar trim panel body, wherein the B-pillar trim panel body is provided with flanges on both sides, and four corner B-surfaces are provided between the flanges, wherein the transition wall thickness between the flanges and the corner B-surfaces is 0.5mm.

[0007] Preferably, the local large surface wall thickness between the flange and the corner B surface is 2.8 mm.

[0008] Preferably, an airbag is provided on the upper part of the B-pillar trim panel.

[0009] Preferably, the lower end of the upper trim panel of the B-pillar is provided with a buckle that engages with the lower trim panel of the B-pillar.

[0010] The beneficial effects of this utility model are as follows: The structural design of this utility model is reasonable. The wall thickness of the local large surface is increased from 2.5mm to 2.8mm, and a transition wall thickness (width 30mm) is added to meet the demolding requirements and ensure the demolding effect. Attached Figure Description

[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 This is the right view of the present invention;

[0014] Figure 3 This is a rear view of the present invention;

[0015] Figure 4 for Figure 3 Sectional view along axis AA;

[0016] Figure 5 for Figure 4 Enlarged schematic diagram of part B;

[0017] Figure 6 This is another rear view of the present invention. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Reference Figure 1-6 The specific embodiment adopts the following technical solution: a B-pillar trim panel, including a B-pillar trim panel body 1, wherein the B-pillar trim panel body 1 is provided with flanges 2 on both sides, and four corner B-surfaces 3 are provided between the flanges 2, wherein the transition wall thickness between the flanges 2 and the corner B-surfaces 3 is 0.5mm.

[0020] It is worth noting that the local large surface wall thickness between the flange 2 and the corner B surface 3 is 2.8mm.

[0021] It is worth noting that an airbag 4 is installed on the upper part of the B-pillar trim panel body 1.

[0022] In addition, the lower end of the upper trim panel body 1 of the B-pillar is provided with a buckle 5 that engages with the lower trim panel of the B-pillar.

[0023] In this specific implementation, when the transition wall thickness cannot meet the mold release requirements (the mold release line cannot be adjusted), the mold requirements are met by increasing the thickness of the local large material and reducing the mold release angle.

[0024] This specific implementation adopts a reasonable wall thickness design: the transition wall thickness between the flange and the corner B-side is 0.5mm, which helps to reduce material usage and lower production costs while ensuring structural strength. The transition wall thickness design also improves the mold's demolding effect, avoiding demolding difficulties caused by excessive wall thickness differences. The wall thickness of large local areas is increased to 2.8mm: By increasing the wall thickness of large local areas, the overall strength and rigidity of the trim panel can be significantly improved, especially in areas with high stress, thereby enhancing the product's durability and impact resistance. An airbag is installed at the top: An airbag is installed at the top of the B-pillar trim panel to provide additional protection in the event of a collision, ensuring passenger safety. A clip is provided at the bottom for engagement with the lower B-pillar trim panel: This clip design allows for quick and convenient installation and removal of the upper and lower B-pillar trim panels. This not only improves assembly efficiency but also facilitates later maintenance and replacement.

[0025] The overall structural design of this specific embodiment takes into account the rational use of materials and the optimization of mechanical properties. By increasing the wall thickness of large local areas and combining it with the design of transition wall thickness, both the demolding requirements are met, and the mechanical properties and service life of the product are guaranteed.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A B-pillar trim panel, characterized in that, Includes a B-pillar trim panel body (1), with flanges (2) on both sides of the B-pillar trim panel body (1), and four corner B-surfaces (3) between the flanges (2), the transition wall thickness between the flanges (2) and the corner B-surfaces (3) is 0.5mm.

2. The B-pillar trim panel according to claim 1, characterized in that, The local wall thickness between the flange (2) and the corner B surface (3) is 2.8 mm.

3. A B-pillar trim panel according to claim 1, characterized in that, An airbag (4) is provided on the upper part of the B-pillar upper trim panel body (1).

4. A B-pillar trim panel according to claim 1, characterized in that, The lower end of the upper trim panel body (1) of the B-pillar is provided with a buckle (5) that engages with the lower trim panel of the B-pillar.