Connecting structure of automobile auxiliary instrument panel and hand brake decorating part
By incorporating welding pillars, cross-shaped welding ribs, and snap-fit structures between the sub-dashboard and the handbrake trim, the problems of weak welding and shrinkage in appearance are solved, achieving higher connection strength and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINGKAI MOLDING TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-01
AI Technical Summary
The welding between the existing automotive sub-dashboard and handbrake trim is not strong enough, causing the handbrake trim to easily fall off and resulting in shrinkage issues.
The auxiliary instrument panel features welded pillars that mate with the three sides of the handbrake trim, and cross-shaped welded ribs that mate with the short sides. Additionally, snap-fit plates, snap-fit grooves, welded seats, and support ribs are used to enhance the connection strength.
The connection between the handbrake trim and the sub-dashboard has been strengthened, reducing the risk of the trim falling off and preventing shrinkage, thus ensuring the stability and aesthetics of the assembly.
Smart Images

Figure CN224184220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive interior structure, specifically to a connection structure between an automotive sub-instrument panel and a handbrake trim piece. Background Technology
[0002] The automotive sub-instrument panel (also known as the "center console" or "central tunnel") is a component located between the front seats, connecting the main instrument panel and the center armrest area. It typically integrates multiple functional modules and is a crucial functional and visual core area in interior design. The sub-instrument panel has a gear shifter mounting slot and a handbrake slot, used for installing the handbrake and gear shift lever, respectively. Currently, to avoid exposed sheet metal on the back of the handbrake after assembly, which affects the overall aesthetics of the interior, some manufacturers install a handbrake trim piece in the handbrake slot during sub-instrument panel production to cover the rear of the handbrake. However, the installation space between the sub-instrument panel and the handbrake trim piece is small, lacking sufficient space for a welded structure to prevent severe shrinkage on the sub-instrument panel surface. Currently, sub-instrument panels on the market can only accommodate a 1.5mm weld post on the back. Due to the small size of the weld post, the weld between the sub-instrument panel and the handbrake trim piece is not strong enough, leading to the problem of the handbrake trim piece detaching, resulting in a high scrap rate for the entire sub-instrument panel assembly. Utility Model Content
[0003] This utility model provides a connection structure between a car's sub-instrument panel and a handbrake trim piece, overcoming the aforementioned problems in the prior art. In this connection structure, the handbrake trim piece is connected to the sub-instrument panel via three sides. Each of the three sides has welding holes that weld to welding posts on the sub-instrument panel, securing the handbrake trim piece firmly to the sub-instrument panel. Furthermore, a cross-shaped welding rib is provided on the sub-instrument panel, which welds to the welding holes on the shorter sides, further enhancing the connection strength between the handbrake trim piece and the sub-instrument panel, reducing the risk of the handbrake trim piece detaching, and preventing shrinkage marks on the surface of the sub-instrument panel.
[0004] The technical solution of this application is as follows:
[0005] A connection structure between a car's sub-dashboard and a handbrake trim piece includes a sub-dashboard; a handbrake groove is provided on the sub-dashboard for installing a handbrake; a handbrake trim piece is installed in the handbrake groove; the handbrake trim piece includes a trim piece body; the trim piece body is U-shaped, with two long sides and one short side at its edge that connect to the sub-dashboard; welding holes A are provided on both the long and short sides, and correspondingly, welding posts are provided on the sub-dashboard; welding holes B are also provided on the short side, and correspondingly, cross welding ribs are provided on the sub-dashboard; the welding posts and cross welding ribs are welded to the welding holes A and B respectively, thereby fixing the handbrake trim piece to the sub-dashboard.
[0006] Compared with the prior art, in the connection structure of the automotive sub-instrument panel and handbrake trim of this utility model, the handbrake trim is U-shaped and connected to the sub-instrument panel through three sides. Each of the three sides has welding holes that weld to welding posts on the sub-instrument panel, thus fixing the handbrake trim to the sub-instrument panel with high connection strength. Furthermore, a cross-shaped welding rib is provided on the sub-instrument panel and welded to welding holes on the short sides, further improving the connection strength between the handbrake trim and the sub-instrument panel, reducing the risk of the handbrake trim falling off, and also preventing shrinkage marks on the surface of the sub-instrument panel.
[0007] As an optimization, in the connection structure between the automotive sub-instrument panel and the handbrake trim, a snap-fit plate is provided on the inner side of the welding pillar on the sub-instrument panel. Correspondingly, snap-fit grooves for inserting the snap-fit plate are provided on the long and short sides. In this case, the inner and outer sides of the long and short sides are restricted by the welding pillar and the snap-fit plate respectively, thereby further improving the connection strength between the sub-instrument panel and the handbrake trim. Specifically, the long side has 3 A welding holes and 3 snap-fit grooves, with the A welding holes and snap-fit grooves distributed alternately; the short side has 1 A welding hole, 2 B welding holes, and 1 snap-fit groove. Furthermore, the distance between the snap-fit groove and the trim body can be 2-4 mm. In this case, the snap-fit plate is very close to the trim body and will not interfere with other parts.
[0008] As an optimization, in the connection structure between the automotive sub-instrument panel and the handbrake trim, the bottom of the welding column is provided with a welding seat; the lower side of the snap-fit plate is provided with a support rib; and the lower end of the cross welding rib is provided with a support plate. The welding seat, support rib, and support plate facilitate fixing to the sub-instrument panel. Therefore, when the handbrake trim is assembled onto the sub-instrument panel, after the welding column, snap-fit plate, and cross welding rib are inserted into the corresponding holes, the welding seat, support rib, and support plate will be located above the side of the handbrake trim; that is, the connection part does not need to be completely embedded in the hole, facilitating the later disassembly and assembly of the handbrake trim.
[0009] Furthermore, a set of reinforcing blocks are spaced apart at the top of the welding seat along the circumference of the welding column. This improves the strength of the welding seat; moreover, the design of the reinforcing blocks prevents the welding seat from directly contacting the side of the handbrake decorative part, thus preventing the welding seat from breaking due to excessive force applied by the worker during assembly.
[0010] As an optimization, in the aforementioned connection structure between the vehicle's sub-dashboard and the handbrake trim, a set of L-shaped reinforcing ribs are spaced apart on the outer peripheral surface of the handbrake trim. This improves the structural strength of the handbrake trim.
[0011] As an optimization, in the aforementioned connection structure between the automotive sub-dashboard and the handbrake trim, a limiting plate is provided on the sub-dashboard, located on the front side of the end of the handbrake trim; a positioning plate is provided below the limiting plate, and correspondingly, a positioning groove is provided at the end of the handbrake trim. Thus, the handbrake trim can be installed through the cooperation of the positioning plate and the positioning groove, making installation more convenient; moreover, after installation, the limiting plate limits the handbrake trim, ensuring its installation position.
[0012] As an optimization, in the aforementioned connection structure between the automotive sub-instrument panel and the handbrake trim, the sub-instrument panel is integrally injection molded from PP material, and the handbrake trim is integrally injection molded from soft rubber material. This simplifies the manufacturing process and makes it easier to implement. Furthermore, PP material has low density, good heat resistance, and good dimensional stability, resulting in a lighter overall weight for the sub-instrument panel and the ability to withstand high temperatures in summer. The soft rubber material absorbs the mechanical impact during the handbrake's operation, reducing clicking noise, and also prevents the handbrake trim from colliding with surrounding hard components, thus avoiding abnormal noise. Moreover, it has good wear resistance and is less prone to scratches over long-term use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the connection structure between the vehicle's sub-dashboard and handbrake trim in an embodiment of this application;
[0014] Figure 2 yes Figure 1 A schematic diagram of the rear side of the connecting structure;
[0015] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the diagram;
[0016] Figure 4 This is a schematic diagram of the sub-instrument panel in an embodiment of this application;
[0017] Figure 5 This is a schematic diagram of the structure of the handbrake decorative component in an embodiment of this application;
[0018] Figure 6 yes Figure 4 An enlarged schematic diagram of part B in the diagram;
[0019] Figure 7 yes Figure 4 An enlarged schematic diagram of part C in the diagram;
[0020] Figure 8 This is an assembly diagram of the positioning plate and positioning groove in an embodiment of this application;
[0021] Figure 9 This is a schematic diagram of the structure of the handbrake decorative component in an embodiment of this application.
[0022] The markings in the attached diagram are as follows: 1-Sub-instrument panel, 101-Handbrake groove, 102-Shifter mounting groove, 11-Welding column, 12-Cross welded rib, 13-Snap-fit plate, 14-Welding seat, 15-Support rib, 16-Support plate, 17-Reinforcing block, 18-Limiting plate, 19-Positioning plate; 2-Handbrake decorative part, 201-A welding hole, 202-B welding hole, 203-Snap-fit groove, 204-Positioning groove, 21-Decorative part body, 22-Long side, 23-Short side, 24-L-shaped reinforcing rib. Detailed Implementation
[0023] The present application will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present application.
[0024] To overcome the problem of low welding strength between the sub-instrument panel and the handbrake trim in the prior art, this application provides a connection structure between the automotive sub-instrument panel and the handbrake trim. By setting welding posts 11 on the sub-instrument panel 1, which are welded to the corresponding A welding holes 201 on the three sides of the handbrake trim 2, and simultaneously setting cross welding ribs 12 on the sub-instrument panel 1, which are welded to the corresponding B welding holes 202 on the short side 23 of the handbrake trim 2, the welding strength between the handbrake trim 2 and the sub-instrument panel 1 is ensured, and no surface shrinkage marks are produced on the product surface. The surface difference and gap meet DTS requirements. The specific structure is as follows.
[0025] Example:
[0026] See Figures 1 to 5The connection structure between the vehicle's sub-dashboard and handbrake trim in this embodiment includes a sub-dashboard 1; the sub-dashboard 1 has a handbrake groove 101 and a gear shifter mounting groove 102, which are used to install the handbrake and the gear shifter, respectively; a handbrake trim 2 is installed in the handbrake groove 101; the handbrake trim 2 includes a trim body 21; the trim body 21 is U-shaped, and the opening size of the trim body 21 is adapted to the groove size of the handbrake groove 101; the edge of the trim body 21 is provided with... The sub-instrument panel 1 has two long side panels 22 and one short side panel 23 connected to it; both the long side panels 22 and the short side panel 23 have A welding holes 201, and correspondingly, the sub-instrument panel 1 has welding pillars 11; the short side panel 23 also has B welding holes 202, and correspondingly, the sub-instrument panel 1 has cross welding ribs 12; the welding pillars 11 and cross welding ribs 12 are welded to the A welding holes 201 and B welding holes 202 respectively, thereby fixing the handbrake trim piece 2 to the sub-instrument panel 1.
[0027] See Figure 6 In this embodiment, a snap-fit plate 13 is also provided on the inner side of the welding column 11 on the sub-instrument panel 1. Correspondingly, snap-fit grooves 203 for inserting the snap-fit plate 13 are provided on the long side 22 and the short side 23, respectively. At this time, the inner and outer sides of the long side 22 and the short side 23 are restricted by the welding column 11 and the snap-fit plate 13, respectively, thereby further improving the connection firmness between the sub-instrument panel 1 and the handbrake trim 2. Specifically, the long side 22 is provided with 3 A welding holes 201 and 3 snap-fit grooves 203, and the A welding holes 201 and snap-fit grooves 203 are distributed alternately; the short side 23 is provided with 1 A welding hole 201, 2 B welding holes 202 and 1 snap-fit groove 203. Further, the distance between the snap-fit groove 203 and the trim body 21 is 2mm. At this time, the snap-fit plate 13 is very close to the trim body 21 and will not interfere with other parts.
[0028] In this embodiment, the bottom of the welding column 11 is provided with a welding seat 14 (for ease of installation, the part on the long side 22 corresponding to the welding seat 14 is designed in an L-shape); the lower end of the side of the snap-fit plate 13 is provided with a support rib 15; the lower end of the cross welding rib 12 is provided with a support plate 16; the welding seat 14, the support rib 15, and the support plate 16 are respectively fixed to the sub-instrument panel 1. Thus, when the handbrake trim 2 is assembled onto the sub-instrument panel 1, after the welding column 11, the snap-fit plate 13, and the cross welding rib 12 are snapped into the corresponding holes, the welding seat 14, the support rib 15, and the support plate 16 will be located above the side of the handbrake trim 2; that is, the connection part does not need to be completely embedded in the hole, which facilitates the later disassembly and assembly of the handbrake trim 2.
[0029] Furthermore, a set of reinforcing blocks 17 are provided at intervals along the circumference of the welding column 11 on the top of the welding seat 14. This can improve the strength of the welding seat 14; and the design of the reinforcing blocks 17 prevents the welding seat 14 from directly contacting the side of the handbrake decorative part 2, thereby preventing the welding seat 14 from breaking due to excessive force applied by the workers during assembly.
[0030] In this embodiment, a set of L-shaped reinforcing ribs 24 are spaced apart on the outer peripheral surface of the handbrake decorative component 2. This improves the structural strength of the handbrake decorative component 2.
[0031] See Figures 7 to 9 In this embodiment, a limiting plate 18 is provided on the sub-instrument panel 1, located on the front side of the end of the handbrake decorative piece 2; a positioning plate 19 is provided below the limiting plate 18, and correspondingly, a positioning groove 204 is provided at the end of the handbrake decorative piece 2. Thus, the handbrake decorative piece 2 can be installed through the cooperation of the positioning plate 19 and the positioning groove 204, making installation relatively convenient; moreover, after installation, the limiting plate 18 limits the position of the handbrake decorative piece 2, ensuring its proper installation position.
[0032] In this embodiment, the sub-instrument panel 1 is integrally injection molded from PP material, and the handbrake trim 2 is integrally injection molded from soft rubber material (e.g., TPE).
[0033] The foregoing general description of the utility model and its specific embodiments should not be construed as limiting the technical solution of the utility model. Those skilled in the art, based on the disclosure of this application, can add, reduce, or combine the disclosed technical features in the foregoing general description and / or specific embodiments (including examples) without departing from the constituent elements of the utility model, to form other technical solutions within the protection scope of this application.
Claims
1. A connection structure between a vehicle's sub-instrument panel and a handbrake trim piece, comprising a sub-instrument panel (1); a handbrake groove (101) is provided on the sub-instrument panel (1) for installing a handbrake; a handbrake trim piece (2) is installed at the handbrake groove (101); characterized in that: The handbrake decorative part (2) includes a decorative part body (21); the decorative part body (21) is U-shaped, and its edge is provided with two long side edges (22) and one short side edge (23) connected to the sub-instrument panel (1); both the long side edge (22) and the short side edge (23) are provided with welding holes (201), and correspondingly, the sub-instrument panel (1) is provided with welding posts (11); the short side edge (23) is also provided with welding holes (202), and correspondingly, the sub-instrument panel (1) is provided with cross welding ribs (12); the welding posts (11) and cross welding ribs (12) are welded to the welding holes (201) and welding holes (202) respectively, thereby fixing the handbrake decorative part (2) and the sub-instrument panel (1) together.
2. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 1, characterized in that: On the sub-instrument panel (1), inside the welded column (11), there is also a snap-fit plate (13), and correspondingly, the long side (22) and the short side (23) are respectively provided with snap-fit grooves (203) for the snap-fit plate (13) to be inserted.
3. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 2, characterized in that: The distance between the snap-fit groove (203) and the decorative part body (21) is 2-4 mm.
4. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 2, characterized in that: The bottom of the welding column (11) is provided with a welding seat (14); the lower side of the snap plate (13) is provided with a support rib (15); the lower end of the cross welding rib (12) is provided with a support plate (16); the welding seat (14), the support rib (15) and the support plate (16) are respectively fixed on the sub-instrument panel (1).
5. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 4, characterized in that: A set of reinforcing blocks (17) are provided at intervals on the top of the welding seat (14) along the circumference of the welding column (11).
6. The connection structure of the automobile auxiliary instrument panel and hand brake trim according to claim 2, characterized in that: The long side (22) is provided with 3 A welding holes (201) and 3 snap-fit grooves (203), and the A welding holes (201) and snap-fit grooves (203) are distributed alternately; the short side (23) is provided with 1 A welding hole (201), 2 B welding holes (202) and 1 snap-fit groove (203).
7. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 1, characterized in that: The outer circumferential surface of the handbrake decorative part (2) is provided with a set of L-shaped reinforcing ribs (24) spaced apart.
8. The connection structure between the automotive sub-instrument panel and the handbrake trim piece according to claim 1, characterized in that: On the sub-instrument panel (1), a limiting plate (18) is provided on the front side of the end of the handbrake trim piece (2).
9. The connection structure of the automobile auxiliary panel and the hand brake trim according to claim 8, characterized in that: A positioning plate (19) is provided below the limiting plate (18), and correspondingly, a positioning groove (204) is provided at the end of the handbrake decorative part (2).
10. The connection structure of the automobile auxiliary panel and the hand brake trim according to any one of claims 1 to 9, characterized in that: The sub-instrument panel (1) is integrally injection molded from PP material, and the handbrake decorative part (2) is integrally injection molded from soft rubber material.