An interior shock-absorbing component for the upper window of a car door.

By designing the structure of the interior window damping components, the problems of poor damping and sound absorption and unstable assembly in the lower window sill area were solved, achieving stable installation and efficient damping and sound absorption, thus improving driving comfort.

CN116749893BActive Publication Date: 2025-11-14JIANGSU LINQUAN AUTO DECORATIONS CO LTD
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Patent Information

Application Number
CN202310514560.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-09
Publication Date
2025-11-14
Estimated Expiration
2043-05-09

AI Technical Summary

Technical Problem

The existing door inner panel has poor shock absorption and sound absorption effect on the lower window sill area, and the assembly is unstable with screws easily loosening, resulting in abnormal noises and insufficient driving comfort.

Method used

A window damping interior trim component was designed, comprising an upper panel, a front and rear window positioning plate, rectangular holes and I-beam holes. Through the connection of the outer positioning buckle edge and the inner mounting edge, combined with the reinforcing rib plate and energy-absorbing groove, stable installation and damping and sound absorption effects are achieved.

Benefits of technology

It improves the stability of window operation and the sound absorption and vibration damping effect, enhances installation stability and weight reduction, reduces noise, and improves driving comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a shock-absorbing interior trim component for the upper window of a vehicle door, comprising: an upper panel with a downward slope; a front window positioning plate and a rear window positioning plate extending outwards from the upper panel and located at the front and rear ends respectively, each having an outer positioning recess; multiple rectangular holes and I-beam holes formed in the upper panel, the rectangular holes and I-beam holes being staggered; and an outer positioning buckle edge and an inner mounting seal extending from the lower side of the upper panel, the outer positioning buckle edge and the inner mounting seal being located on the outer and inner sides of the rectangular holes respectively. This invention uses the outer positioning buckle edge and the inner mounting seal for positioning and installation, the front and rear window positioning plates limit the raising and lowering of the window glass, the rectangular holes and I-beam holes provide shock absorption, and then the subsequently installed polyester sponge absorbs sound, enhancing the performance, making the installation more stable, and reducing weight.
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Description

Technical Field

[0001] This invention belongs to the technical field of automotive door panel interior parts, specifically, it relates to a shock-absorbing interior part for the upper window of a car door. Background Technology

[0002] The interior door trim panel is a plastic part that covers the door sheet metal and internal mounting components. It houses mechanisms such as window regulators and door locks. If these mechanisms malfunction and require repair, the trim panel needs to be removed. Therefore, the trim panel is generally fixed to the door sheet metal with screws for easy disassembly. Currently, car doors have shock-absorbing and energy-dampening trim panels installed on the lower window sill. Previously, these were made of straight strips with reinforcing ribs, embedded with polyester foam, and fixed to the door frame with screws. This was intended to absorb noise generated by window operation and provide structural support. However, over time, the screws tend to loosen, and this type of trim panel is prone to rattling. Furthermore, its energy absorption and shock absorption effects are relatively poor, failing to maximize vibration and sound reduction, resulting in insufficient driving comfort.

[0003] Therefore, there is an urgent need for a stable, lightweight interior door and window vibration damping component that can absorb sound through its own structure. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide an upper window shock-absorbing interior trim piece for use in car doors, so as to avoid the trouble of poor shock absorption and sound absorption effect of the previous door inner panel and unstable assembly.

[0005] To address the aforementioned technical problems, this invention discloses a shock-absorbing interior trim component for the upper window of a vehicle door, comprising:

[0006] The upper panel has a downward slope;

[0007] The front window positioning plate and the rear window positioning plate extend to the outer side of the upper panel and are located at the front and rear ends respectively. The front window positioning plate and the rear window positioning plate each have an outer positioning cavity.

[0008] Multiple rectangular holes and I-beam holes are provided on the top panel, and the rectangular holes and I-beam holes are arranged alternately.

[0009] The outer positioning buckle edge and the inner mounting seal edge extend to the lower side of the upper panel, and are located on the outer and inner sides of the rectangular hole, respectively.

[0010] According to one embodiment of the present invention, a plurality of reinforcing ribs are connected between the outer positioning buckle edge and the inner mounting edge, and the reinforcing ribs are located between the rectangular hole and the I-shaped hole.

[0011] According to one embodiment of the present invention, an energy-absorbing groove is provided at intervals on the lower side of the outer positioning buckle, and the energy-absorbing groove includes a triangular groove in the middle and concave flat grooves at both ends of the bottom of the triangular groove.

[0012] According to one embodiment of the present invention, the top of the triangular groove is close to the top panel portion, and the two are spaced 8-12mm apart; the depth of the concave flat groove is 8-12mm.

[0013] According to one embodiment of the present invention, the triangular groove is located on the outer convex cavity surface of the outer positioning buckle edge, the outer convex cavity surface is set as a rectangle, and the outer convex cavity surface does not cover the end of the inner concave flat groove.

[0014] According to one embodiment of the present invention, the outer positioning buckle edge is provided with two spaced reinforcing ridges, the reinforcing ridges are vertically positioned and extend downward from the upper end of the outer positioning buckle edge, and are spaced from the lower end.

[0015] According to one embodiment of the present invention, the lower side of the outer positioning buckle has an inward buckle, and the buckle is located on the lower side of the reinforcing ridge.

[0016] According to one embodiment of the present invention, the above-mentioned I-beam hole has an extended protrusion at the center of one side.

[0017] According to one embodiment of the present invention, the inner mounting edge has a positioning notch.

[0018] Compared with the prior art, the present invention can achieve the following technical effects:

[0019] Positioning and installation are achieved through external positioning buckles and internal mounting edges. Front and rear window positioning plates limit the raising and lowering of the window glass. Rectangular and I-beam holes reduce vibration, and then polyester sponge is installed later to absorb sound, enhancing the effect, making the installation more stable and lightweight.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a perspective view of the upper window shock-absorbing interior trim component applied to a car door according to an embodiment of the present invention;

[0023] Figure 2 This is a rear view of the upper window shock-absorbing interior trim component applied to a car door according to an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A schematic diagram of direction A.

[0025] Attached Figure Labels

[0026] The upper panel 10, the front window positioning plate 20, the rear window positioning plate 30, the outer positioning recess 40, the rectangular hole 51, the I-shaped hole 52, the outer positioning buckle edge 60, the energy absorption groove 61, the triangular groove 62, the inner concave flat groove 63, the outer convex cavity surface 64, the reinforcing ridge 65, the buckle 66, the inner mounting edge 70, the positioning recess 71, and the reinforcing rib 80. Detailed Implementation

[0027] The following will describe in detail the implementation of the present invention with reference to the accompanying drawings and embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] Please refer to Figures 1 to 3 , Figure 1 This is a perspective view of the upper window shock-absorbing interior trim component applied to a car door according to an embodiment of the present invention; Figure 2 This is a rear view of the upper window shock-absorbing interior trim component applied to a car door according to an embodiment of the present invention; Figure 3 yes Figure 2 A schematic diagram of direction A.

[0029] like Figure 1 As shown, an upper window damping interior trim piece for a car door includes: an upper panel portion 10 with a downward slope; a front window positioning plate 20 and a rear window positioning plate 30 extending outward from the upper panel portion 10 and located at the front and rear ends respectively, the front window positioning plate 20 and the rear window positioning plate 30 each having an outer positioning cavity 40; a plurality of rectangular holes 51 and I-beam holes 52 formed in the upper panel portion 10, the rectangular holes 51 and I-beam holes 52 being staggered; an outer positioning buckle edge 60 and an inner mounting seal edge 70 extending on the lower side of the upper panel portion 10, the outer positioning buckle edge 60 and the inner mounting seal edge 70 being located on the outer and inner sides of the rectangular holes 51 respectively.

[0030] In one embodiment of the present invention, the upper panel 10 is inclined downwards towards the vehicle interior. A front window positioning plate 20 and a rear window positioning plate 30 are provided at both ends on the outer side to limit the window glass. External positioning cavities 40 are respectively provided at the front and rear outer ends of the front and rear window positioning plates 20 and 30 to position the entire interior trim piece and enhance stability. The surface of the upper panel 10 has spaced rectangular holes 51 and I-beam holes 52, which are staggered. These openings reduce weight and achieve lightweighting, while also allowing the polyester foam installed inside the door to fully absorb sound and dampen vibrations. Additionally, they reduce stress concentration and enhance flexibility. An external positioning buckle edge 60 and an internal mounting edge 70 extend from the lower side of the upper panel 10, positioned on both sides to complete the assembly of the entire interior trim piece.

[0031] Specifically, multiple reinforcing ribs 80 are connected between the outer positioning buckle edge 60 and the inner mounting edge 70. The reinforcing ribs 80 are located between the rectangular hole 51 and the I-beam hole 52 to improve strength and enhance durability.

[0032] In addition, energy-absorbing grooves 61 are provided at intervals on the lower side of the outer positioning buckle edge 60. The energy-absorbing grooves 61 include a triangular groove 62 located in the middle and concave flat grooves 63 located at both ends of the bottom of the triangular groove 62. This reduces the vibration of the overall panel surface, improves the absorption of vibration caused by the raising and lowering of the side window glass, and the triangular groove 62 and concave flat groove 63 are formed to enhance the assembly positioning.

[0033] The top of the triangular groove 62 of the present invention is close to the top panel 10, and the two are 8-12mm apart, with a larger opening and better shock absorption; the concave flat groove 63 has a depth of 8-12mm to ensure the strength and toughness of the bottom.

[0034] In addition, the triangular groove 62 is located on the outer convex cavity surface 64 of the outer positioning buckle edge 60. The outer convex cavity surface 64 is set as a rectangle and does not cover the end of the inner concave flat groove 63, which is used to improve the strength of the wall surface where the triangular groove 62 is located.

[0035] Furthermore, the outer positioning buckle edge 60 is provided with two spaced reinforcing ribs 65. The reinforcing ribs 65 are vertical and extend downward from the upper end of the outer positioning buckle edge 60, and are spaced from the lower end, thereby improving the strength of the outer positioning buckle edge 60.

[0036] The outer positioning buckle edge 60 of the present invention has an inward buckle 66 on the lower side. The buckle 66 is located on the lower side of the reinforcing rib 65, so as to realize assembly and fixation and strengthen stability.

[0037] In a preferred embodiment, the center of one side of the I-beam hole 52 has an extended protrusion, which relatively strengthens the stability of the slot and improves its strength.

[0038] In addition, the inner mounting edge banding 70 has a positioning notch 71, which meets the requirements of the body manufacturing process and serves as a positioning function.

[0039] In summary, this invention uses an outer positioning buckle edge 60 and an inner mounting edge 70 for positioning and installation, a front window positioning plate 20 and a rear window positioning plate 30 to limit the raising and lowering of the window glass, rectangular holes 51 and I-beam holes 52 for shock absorption, and then uses polyester sponge for sound absorption in the later assembly to enhance the performance, making the installation more stable and lightweight.

[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A shock-absorbing interior trim component for the upper window of a vehicle door, characterized in that, include: The upper panel portion has a downward slope; The front window positioning plate and the rear window positioning plate extend to the outer side of the upper panel and are located at the front and rear ends respectively. The front window positioning plate and the rear window positioning plate each have an outer positioning cavity. Multiple rectangular holes and I-shaped holes are provided on the upper panel, and the rectangular holes and I-shaped holes are arranged alternately. An outer positioning buckle edge and an inner mounting seal edge extend to the lower side of the upper panel, the outer positioning buckle edge and the inner mounting seal edge being located on the outer and inner sides of the rectangular hole, respectively; The outer positioning buckle has energy-absorbing grooves spaced apart on its lower side. The energy-absorbing grooves include a triangular groove in the middle and concave flat grooves at both ends of the bottom of the triangular groove. The triangular groove is located on the outer convex cavity surface of the outer positioning buckle edge. The outer convex cavity surface is rectangular and does not cover the end of the inner concave flat groove.

2. The upper window shock-absorbing interior trim component for vehicle doors according to claim 1, characterized in that, The outer positioning buckle edge and the inner mounting edge are connected by multiple reinforcing ribs, which are located between the rectangular hole and the I-shaped hole.

3. The upper window shock-absorbing interior trim component for vehicle doors according to claim 1, characterized in that, The top of the triangular groove is close to the top panel, and the two are spaced 8-12mm apart; the depth of the concave flat groove is 8-12mm.

4. The upper window shock-absorbing interior trim component for vehicle doors according to claim 1, characterized in that, The outer positioning buckle edge is provided with two spaced reinforcing ridges. The reinforcing ridges are vertical and extend downward from the upper end of the outer positioning buckle edge, and are spaced from the lower end.

5. The upper window damping interior trim component for vehicle doors according to claim 4, characterized in that, The outer positioning buckle has an inward buckle on its lower side, and the buckle is located on the lower side of the reinforcing ridge.

6. The upper window damping interior trim component for vehicle doors according to claim 1, characterized in that, The I-beam hole has an extended protrusion at the center of one side.

7. The upper window shock-absorbing interior trim component for vehicle doors according to claim 1, characterized in that, The inner mounting edge has a positioning notch.

Citation Information

Patent Citations

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