Improved automobile window frame decoration strip
By designing the main body and bending parts of the window frame trim, and using installation protrusions and sound-absorbing cotton layers to absorb sound, the problem of vibration and abnormal noise caused by the gap between the metal window frame trim and the door sheet metal parts was solved, thereby reducing abnormal noise and improving installation stability.
Patent Information
- Application Number
- CN202520410825.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The gap between the metal window frame trim and the door sheet metal parts causes vibration and abnormal noise, affecting the interior environment of the car.
Design a window frame trim body and its bending part, and set up installation protrusions, sound-absorbing cotton layer and rubber layer. The sound is absorbed by the snap-fit and sound-absorbing cotton layer to reduce the transmission of abnormal noise.
It effectively reduces abnormal noises inside the vehicle, improves installation stability and sealing, and enhances the quietness of the vehicle interior environment.
Smart Images

Figure CN223720812U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile accessories, in particular to an improved automobile window frame trim. BACKGROUND
[0002] The metal window frame trim is usually made of aluminum alloy, and is embedded on the door panel by clamping during installation. Since the clamping is achieved by extrusion, the trim and the door panel have a certain allowance during production, which will cause a gap between them. During operation, the vibration will produce noise, which will be transmitted to the vehicle interior and affect the vehicle environment. SUMMARY
[0003] The utility model provides an improved automobile window frame trim to solve the above problems in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] An improved automobile window frame trim comprises a window frame trim body, left and right bending parts connected to the bottom of the window frame trim body, the cross sections of the window frame trim body, the left bending part and the right bending part jointly forming a "J" shape, mounting protrusions for clamping with the door panel fixed to the outer surfaces of the left and right sides of the window frame trim body, and sound-absorbing cotton layers attached to the inner top surface of the window frame trim body and the inner sides of the bending parts of the window frame trim body and the left and right bending parts.
[0006] As a further scheme of the utility model, the width of the left bending part is wider than that of the right bending part, and a sealing gasket is fixed to the upper surface of the end of the left bending part away from the window frame trim body.
[0007] As a further scheme of the utility model, the upper side of the mounting protrusion is provided with a circular arc surface, and the lower side of the mounting protrusion is provided with a horizontal surface.
[0008] As a further scheme of the utility model, an extension protrusion is fixed to the inner side of the window frame trim body, the extension protrusion is inclined towards the inner top surface of the window frame trim body, and the surface of the extension protrusion is covered with a rubber layer.
[0009] As a further scheme of the utility model, a butt joint groove is formed in the lower surface of the left bending part, a detachable window frame bright strip is mounted on the lower surface of the left bending part, and a protruding key is arranged on the upper surface of the window frame bright strip and can be clamped in the butt joint groove.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] 1、through setting sound-absorbing cotton layer, and sound-absorbing cotton layer is set between window frame trim body and bending part respectively, sound-absorbing cotton layer is directly contacted with door sheet metal part when installing window frame trim body to door sheet metal part, and the sound produced in the process of vehicle driving is absorbed by the sound-absorbing cotton layer at the bending part, so that the sound propagation to the vehicle interior is weakened, and the bending part is provided with inside and outside, which can further weaken the sound transmission to the vehicle interior, and when the window glass is completely closed, the side of the window glass is in contact with the rubber layer, and the top is abutted to the sound-absorbing cotton layer, which can further prevent the external sound from propagating to the vehicle interior through the gap.
[0012] 2、through setting installation protrusion, since the upper side of the installation protrusion is arc surface, the window frame trim body is conveniently installed to the inside of the door sheet metal part, and a certain resistance can be formed under the resistance of the lower side plane of the installation protrusion, so that the window frame trim body is prevented from falling off. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a kind of improved automobile window frame trim cross section structure schematic diagram;
[0014] Fig. 2 It is a kind of improved automobile window frame trim structure schematic diagram.
[0015] In the figure: 1, window frame trim body;2, installation protrusion;3, extension protrusion;4, rubber layer;5, left bending part;6, right bending part;7, sealing gasket;8, sound-absorbing cotton layer;9, butt joint groove;10, window frame bright bar;11, window glass. DETAILED DESCRIPTION
[0016] Please refer to Figs. 1-2 In the embodiment of the utility model, an improved automobile window frame trim includes window frame trim body 1, the bottom of the both sides of window frame trim body 1 is connected with left bending part 5 and right bending part 6 respectively, the section of window frame trim body 1, left bending part 5 and right bending part 6 jointly constitutes "J" character, the both sides of the outer surface of window frame trim body 1 are fixedly connected with installation protrusion 2 for clamping with door sheet metal part, the inner side of the bending part of window frame trim body 1 and left bending part 5, the inner side of the bending part of window frame trim body 1 and right bending part 6 and the inner top surface of window frame trim body 1 are all pasted with sound-absorbing cotton layer 8.
[0017] Preferably, the width of left bending part 5 is wider than the width of right bending part 6, and the upper surface of the end of left bending part 5 away from window frame trim body 1 is fixedly provided with sealing gasket 7.
[0018] Preferably, the upper side of installation protrusion 2 is provided with circular arc surface, and the lower side of installation protrusion 2 is provided with horizontal surface.
[0019] Preferably, the inner side of the window frame trim body 1 is fixed with an extension protrusion 3, the extension protrusion 3 is inclined towards the inner top surface of the window frame trim body 1, and the surface of the extension protrusion 3 is covered with a rubber layer 4.
[0020] Preferably, the lower surface of the left bending part 5 is provided with a butt joint groove 9, and the lower surface of the left bending part 5 is provided with a detachable window frame bright bar 10, and the upper surface of the window frame bright bar 10 is provided with a protruding key which can be connected to the inside of the butt joint groove 9.
[0021] The working principle of the utility model is: when installing the automobile window frame trim, the upper end of the window frame trim body 1 is aligned with the recess of the automobile door metal part, the left bending part 5 is towards the outside of the door, the right bending part 6 is towards the inside of the car, and the window frame trim body 1 is installed into the inside by applying a pushing force, because the upper side of the installation protrusion 2 is provided with an arc surface, the window frame trim body 1 is conveniently installed into the inside of the door metal part, and when the window frame trim body 1 is installed into the inside of the door metal part, a certain block can be formed under the block of the lower side of the installation protrusion 2, so as to prevent the window frame trim body 1 from falling off, and at the same time, after the installation of the window frame trim body 1 is completed, the upper surfaces of the left bending part 5 and the right bending part 6 are also close to the two side surfaces of the recess position of the door metal part, and because the sound-absorbing cotton layer 8 is arranged at the bending part, the sound-absorbing cotton layer 8 directly contacts the door metal part, so as to play a sound-absorbing role when the automobile is running, and because the sealing gasket 7 is arranged at the end of the left bending part 5, the sealing gasket 7 is attached to the surface of the door metal part, so as to play a dustproof and waterproof effect, and when the window glass 11 is lifted, the window glass 11 first contacts the rubber layer 4 on the surface of the extension protrusion 3, and finally the top end of the window glass 11 abuts against the surface of the sound-absorbing cotton layer 8, the rubber layer 4 can play a sealing and isolating effect, and the sound-absorbing cotton layer 8 arranged on the inner top surface of the installation protrusion 2 can further absorb sound, reduce the abnormal sound generated by vibration when the vehicle is running and transmitted into the automobile interior, and ensure the assembly quality.
[0022] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. An improved automotive window frame trim comprising a window frame trim body (1) characterized by: The window frame decoration strip body (1) is connected with a left bending part (5) and a right bending part (6) respectively at two side bottom parts, the cross section of the window frame decoration strip body (1), the left bending part (5) and the right bending part (6) jointly form a Chinese character, the two side outer surfaces of the window frame decoration strip body (1) are fixedly connected with mounting protrusions (2) for clamping with a car door panel, the inner side of the bending part of the window frame decoration strip body (1) and the left bending part (5), the inner side of the bending part of the window frame decoration strip body (1) and the right bending part (6) and the inner top surface of the window frame decoration strip body (1) are all pasted with sound absorbing cotton layers (8).
2. The improved automotive window frame trim of claim 1, wherein: The width of the left bending part (5) is wider than the width of the right bending part (6), and a sealing gasket (7) is fixedly arranged on the upper surface of the end of the left bending part (5) away from the window frame decoration strip body (1).
3. The improved automotive window frame trim of claim 1, wherein: The upper side of the mounting protrusion (2) is provided as a circular arc surface, and the lower side of the mounting protrusion (2) is provided as a horizontal surface.
4. The improved automotive window frame trim of claim 1, wherein: The inner side of the window frame decoration strip body (1) is fixedly connected with an extension protrusion (3), the extension protrusion (3) is inclined towards the inner top surface of the window frame decoration strip body (1), and the surface of the extension protrusion (3) is covered with a rubber layer (4).
5. The improved automotive window frame trim of claim 1, wherein: The lower surface of the left bending part (5) is provided with a butt joint groove (9), the lower surface of the left bending part (5) is mounted with a detachable window frame bright strip (10), and the upper surface of the window frame bright strip (10) is provided with a protruding key which can be clamped in the butt joint groove (9).