Curtain sealing and sound absorbing structure and vehicle
The window shade sealing and sound absorption structure addresses the issue of noise and ingress by creating a sealed compartment with sound absorption, enhancing passenger comfort and vehicle integrity.
Patent Information
- Application Number
- CN202422536406.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The installation of electric or manual window shades in vehicles leads to gaps in the seal between the window frame and door, allowing wind noise and external elements to enter the cabin, compromising passenger comfort and vehicle integrity.
A window shade sealing and sound absorption structure comprising a seal lip, door frame trim, sound absorption support filled with honeycomb structures and sponge particles, and a window track, forming a sealed compartment to absorb noise and prevent ingress of external elements.
The structure provides enhanced sealing and sound absorption, reducing wind noise and preventing dust and water entry, thereby improving cabin quietness and vehicle quality.
Smart Images
Figure CN223100635U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile interior decoration, and in particular relates to a curtain sealing sound absorption structure and a vehicle. Background Art
[0002] With the increasing number of high-speed driving scenarios, it is crucial to control the wind noise of cars at high speeds. At the same time, more and more mid-to-high-end cars begin to pay attention to rear-seat privacy, which has led to the need to install manual sunshades or electric curtains.
[0003] When the car is equipped with electric curtains or manual curtains, the installation layout of the curtain rails will cause the original door frame trim and the sealing rubber on the black edge of the door window glass to be unable to cooperate, so the curtain rail periphery and the door window glass, the door window frame upper trim cannot be sealed. Figure 1 In this case, during high-speed driving, the wind noise generated by the airflow hitting the doors and the sides of the car body will be transmitted into the car through the missing seal position, thereby affecting the quiet feeling of the passengers, especially those in the back row, and reducing the riding comfort. In addition, this poor sealing may also allow dust, rainwater, etc. to enter the car, which is very detrimental to the waterproof and dustproof effect of the doors and windows, and urgently needs to be improved. Utility Model Content
[0004] The embodiment of the utility model provides a curtain sealing sound absorption structure and a vehicle, aiming to improve the sealing and sound absorption effects of the electric curtain installation structure.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: in the first aspect, a curtain sealing sound absorbing structure and a vehicle are provided, including:
[0006] A sealing lip, connected to the edge of the door window glass and sealed against the door frame sheet metal;
[0007] The door frame trim is sealed and connected to the door inner panel, and forms an installation space with the sealing lip;
[0008] The sound-absorbing support body fills the installation space and cooperates with the sealing lip and the door frame trim to enclose an installation groove;
[0009] The curtain rail is sealed and embedded in the installation groove;
[0010] The sound absorbing support body is formed by topologically connecting a plurality of sound absorbing units.
[0011] In combination with the first aspect, in a possible implementation manner, the sound absorbing support body includes:
[0012] A honeycomb bracket is connected to the sealing lip, the curtain rail and the door frame trim, and a plurality of cells are adjacently distributed on the honeycomb bracket;
[0013] Sponge particles are respectively filled in each cell cavity, and the sponge particles are used to resonate under noise excitation to absorb energy;
[0014] Among them, each cell cavity and the sponge particles filled therein together form an acoustic absorption unit.
[0015] In some embodiments, each cell cavity is filled with sponge particles of various different particle sizes.
[0016] Exemplarily, a through-hole array is arranged on the peripheral wall of the honeycomb bracket, and the through-hole array is used to transmit noise excitation energy into the cell cavity.
[0017] For example, one end of the door frame trim is bent to form a clamping groove, the clamping groove and the notch of the installation groove face in opposite directions, and the sound absorption support body is provided with a clamping edge, and the clamping edge is clamped in the clamping groove.
[0018] In a possible implementation manner, a sealing cushion layer is provided on the outer surface of one side of the clamping groove close to the sealing lip edge, and the sealing cushion layer forms one side wall of the installation groove and is in sealing contact with the curtain guide rail.
[0019] In some embodiments, one end of the sealing lip edge has a convex platform protruding towards the sealing cushion layer, a limiting stop edge is provided on the table surface of the convex platform, the convex platform is attached and fixed to the curtain guide rail as one side wall of the installation groove, and the limiting stop edge is abutted and fixed to the curtain guide rail as part of the bottom of the installation groove.
[0020] Exemplarily, at least two support ribs are distributed at intervals on the sealing lip edge, and each support rib is in sealing pressure against the door frame sheet metal.
[0021] For example, a sealing strip is squeezed and sealed between the door frame trim and the inner door panel.
[0022] The beneficial effects of the curtain sealing and sound absorption structure provided by the present utility model are as follows: compared with the prior art, in the curtain sealing and sound absorption structure of the present utility model, the sealing lip edge is in sealing pressure against the door frame sheet metal, and in cooperation with the sealed connection between the door frame trim and the inner door panel, a sound insulation barrier can be formed; the sound absorption support body filled in the installation space formed between the door frame trim and the sealing lip edge can form a sound absorption structure; the curtain guide rail is hermetically embedded in the installation groove to form a second sound insulation barrier; thus, a noise treatment effect of isolation-absorption-isolation is formed in the overall structure, thereby reducing the wind noise transmitted into the vehicle through the connection position of the curtain guide rail, improving the interior quietness of the vehicle, and enhancing the driving and riding experience; since the sound absorption support body is filled in the installation space, sealing can be formed around the curtain guide rail, thereby avoiding the problem of poor sealing or failure caused by installing an electric curtain or a manual curtain, improving the waterproof and dustproof performance after installing the curtain on the vehicle door and window, and further enhancing the vehicle quality.
[0023] In a second aspect, an embodiment of the present utility model further provides a vehicle, including the above-mentioned curtain sealing and sound absorption structure.
[0024] The beneficial effects of the vehicle provided by the present utility model are as follows: Compared with the prior art, the vehicle of the present utility model adopts the above curtain sealing and sound absorption structure, which can form a noise treatment effect of isolation - absorption - isolation, thereby reducing the wind noise transmitted into the vehicle through the connection position of the curtain guide rail, improving the quietness inside the vehicle and enhancing the driving and riding experience; Since the sound absorption support body is filled in the installation space, it can form a seal around the curtain guide rail, thereby avoiding the problem of poor sealing or failure caused by installing an electric curtain or a manual curtain, improving the waterproof and dustproof performance after installing the curtain on the vehicle door and window, and further enhancing the vehicle quality. Description of the Drawings
[0025] Figure 1 It is a schematic structural diagram of the connection of the curtain guide rail when installing an electric curtain in an automobile in the prior art;
[0026] Figure 2 It is a schematic cross - sectional structural diagram of the curtain sealing and sound absorption structure provided by an embodiment of the present utility model;
[0027] Figure 3 It is a schematic cross - sectional structural diagram of the curtain sealing and sound absorption structure provided by an embodiment of the present utility model when the curtain guide rail is not installed;
[0028] Figure 4 It is a schematic three - dimensional structural diagram of the sound absorption support body adopted by an embodiment of the present utility model;
[0029] Figure 5 It is a schematic partial cross - sectional structural diagram of the honeycomb bracket adopted by an embodiment of the present utility model;
[0030] Figure 6 It is an exploded structural diagram of the curtain sealing and sound absorption structure provided by an embodiment of the present utility model.
[0031] In the figure: 10, sealing lip; 11, boss; 12, limiting edge; 13, support rib; 20, vehicle door and window glass; 30, door frame sheet metal; 40, door frame trim; 41, card slot; 42, sealing cushion layer; 43, sealing strip; 50, installation space; 60, door inner panel; 70, sound absorption support body; 700, sound absorption unit; 701, clamping edge; 71, honeycomb bracket; 710, cell; 711, through - hole array; 72, sponge particles; 80, installation groove; 90, curtain guide rail. Detailed Embodiment
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0033] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In the description of the present application, the meanings of "a plurality of" and "several" are two or more, unless otherwise specifically defined.
[0034] Please refer to Figures 2 to 6 together for an illustration of the curtain sealing and sound-absorbing structure provided by the present utility model. The curtain sealing and sound-absorbing structure includes a sealing lip 10, a doorframe trim 40, a sound-absorbing support 70, and a curtain rail 90; the sealing lip 10 is connected to the edge of the vehicle window glass 20 and is sealingly pressed against the doorframe sheet metal 30; the doorframe trim 40 is sealingly connected to the inner door panel 60 and forms an installation space 50 with the sealing lip 10; the sound-absorbing support 70 is filled in the installation space 50 and cooperates with the sealing lip 10 and the doorframe trim 40 to enclose an installation groove 80; the curtain rail 90 is sealingly embedded in the installation groove 80; wherein, the sound-absorbing support 70 is formed by topologically connecting a plurality of sound-absorbing units 700.
[0035] It should be noted that the curtain installed at the side door window in this embodiment can be an electric curtain, or a manual curtain or a sunshade curtain; the installation of the curtain is based on the sliding fit between the edge of the curtain cloth and the curtain rail 90, which is prior art and will not be elaborated here; it can be understood here that a sealing and sound-insulating structure is added based on the connection structure of the curtain rail 90 as shown in Figure 1 Therefore, the structures of the doorframe sheet metal 30, the inner door panel 60, and the vehicle window glass 20, as well as the sealing connection methods between the doorframe sheet metal 30 and the inner door panel 60, the doorframe sheet metal 30 and the vehicle window glass 20, and the inner door panel 60 and the doorframe trim 40 can all adopt existing methods and will not be elaborated here.
[0036] Specifically, it should be understood that, in this embodiment, the sealing lip 10 and the door frame trim 40 are improved in local structure, thereby forming an open installation space 50 between the two. On this basis, a plurality of sound absorbing units 700 are topologically connected to form a sound absorbing support body 70 to be filled in the installation space 50, and a mounting groove 80 capable of engaging the curtain rail 90 is formed between the sound absorbing support body 70, the sealing lip 10 and the door frame trim 40 on the open side of the installation space 50. Thus, on the one hand, the gap around the curtain rail 90 is blocked by the sound absorbing support member, thereby improving the waterproof and dustproof performance. On the other hand, the sound absorbing support body 70 can be used to absorb the noise energy entering the installation space 50. Since both sides of the sound absorbing support body 70 have sealed sound insulation barriers, a noise isolation-absorption-isolation noise treatment method can be formed on the noise transmission route, thereby reducing the noise transmitted to the vehicle interior.
[0037] Optionally, the topological connection method of the above-mentioned sound absorbing units 700 can be specifically understood as the increase or decrease of a single sound absorbing unit 700 does not affect the overall sound absorption effect of the sound absorbing support body 70, thereby being able to adaptively select a matching sound absorbing support body 70 according to the installation space 50 that can be formed by different vehicle models, ensuring the installation of electric or manual curtains for the doors and windows of different vehicle models.
[0038] Compared with the prior art, the curtain sealing sound-absorbing structure provided in the present embodiment has a sealing lip 10 that is sealed against the door frame sheet metal 30, and can form a sound insulation barrier in cooperation with the sealing connection between the door frame trim 40 and the door inner panel 60; the sound-absorbing support body 70 filled in the installation space 50 formed between the door frame trim 40 and the sealing lip 10 can form a sound-absorbing structure; the curtain rail 90 is sealed and embedded in the installation groove 80 to form a second sound insulation barrier; thereby, an isolation-absorption-isolation noise treatment effect is formed on the overall structure, thereby reducing the wind noise transmitted to the vehicle interior through the connection position of the curtain rail 90, which can improve the quietness of the vehicle interior and enhance the driving experience; since the sound-absorbing support body 70 is filled in the installation space 50, a seal can be formed around the curtain rail 90, thereby avoiding poor sealing or failure caused by the installation of electric curtains or manual curtains, improving the waterproof and dustproof performance of the vehicle door window after the curtains are installed, and thus improving the quality of the vehicle.
[0039] In some embodiments, see Figures 2 to 5 The sound-absorbing support body 70 includes a honeycomb bracket 71 and sponge particles 72; the honeycomb bracket 71 is connected to the sealing lip 10, the curtain rail 90 and the door frame trim 40, and a plurality of cavities 710 are adjacently distributed on the honeycomb bracket 71; sponge particles 72 are filled in each cavity 710, and the sponge particles 72 are used to resonate under noise excitation to absorb energy; wherein, each cavity 710 and the sponge particles 72 filled therein together form a sound-absorbing unit 700.
[0040] The honeycomb bracket 71 can specifically be formed in a honeycomb shape by using a number of polygonal cells 710. The cells 710 can be regular hexagons. The material of the honeycomb bracket 71 can be PE plastic. The cells 710 are all cavities with equal cross-sections and can be directly formed by pultrusion and be conformally matched with the shape of the installation space 50, thereby being applicable to different vehicle models and meeting the lightweight index. On this basis, sponge particles 72 are filled in each of the cells 710. Since the sponge material has the characteristics of being sparse and porous, the sponge particles 72 can resonate and absorb energy under the noise excitation transmitted to the inside of the cells 710, thereby absorbing and weakening the noise.
[0041] Specifically, as Figure 4 shown, in this embodiment, each of the cells 710 is filled with sponge particles 72 of various different particle sizes. The sponge particles 72 of different sizes can be tightly filled in the cells 710, that is, the small particle sponge particles 72 can fill the gaps between the large particles. Thus, on the one hand, it can prevent the sponge particles 72 from freely moving in the cells 710 and generating abnormal noises, and on the other hand, it can utilize the sponge particles 72 of different particle sizes to absorb noises in various frequency bands, thereby improving the sound absorption effect and reducing the transmission of noise into the vehicle interior.
[0042] As a variant implementation manner of the above honeycomb bracket 71, please refer to Figure 4 , a through-hole array 711 is arranged on the peripheral wall of the honeycomb bracket 71. The through-hole array 711 is used to transmit noise excitation energy into the cells 710. By arranging the through-hole array 711 on the peripheral wall of the honeycomb bracket 71, it is convenient for the noise energy to pass through the through-hole array 711 and enter the cells 710, thereby increasing the absorption rate of the sponge particles 72 to the noise energy and improving the sound absorption efficiency.
[0043] In some possible implementation manners, please refer to Figure 2 and Figure 6 , one end of the door frame trim 40 is bent to form a card slot 41. The slot opening of the card slot 41 is opposite to the slot opening of the installation slot 80. The sound absorption support 70 is provided with a card edge 701, and the card edge 701 is clamped in the card slot 41. The end of the door frame trim 40 can be bent twice continuously to form a U-shaped card slot 41. Since the installation slot 80 is used for embedding the curtain guide rail 90, and the curtain guide rail 90 is used for installing the curtain body and the curtain cloth, the slot opening of the installation slot 80 needs to face the outside of the installation space 50. Therefore, the slot opening of the card slot 41 opposite to the installation slot 80 faces the inside of the installation space 50. Thus, the card edge 701 of the sound absorption support 70 can be embedded in the card slot 41 to form a clamping fit. On the one hand, it can improve the connection reliability and sealing performance between the sound absorption support 70 and the door frame trim 40, and on the other hand, it can use the card slot 41 to block the sound absorption support 70, thereby preventing the sound absorption support 70 from being exposed and affecting the interior trim texture.
[0044] It should be noted that, as Figure 6 shown, on the outer surface of one side of the above-mentioned card slot 41 close to the sealing lip 10, there is a sealing cushion layer 42, and the sealing cushion layer 42 forms one side wall of the installation groove 80 and is in sealed abutment with the curtain guide rail 90.
[0045] Specifically, this sealing cushion layer 42 can be a flocked surface formed by flocking on the surface. By using the sealed abutment between the sealing cushion layer 42 and the curtain guide rail 90, the connection sealing performance between the curtain guide rail 90 and the door frame trim 40 is improved, and the problem of poor sealing caused by direct hard fitting between the curtain guide rail 90 and the door frame trim 40 resulting in connection gaps is avoided. It can not only improve the waterproof and dustproof performance, but also improve the sound insulation efficiency at this position, thereby improving the interior quietness of the vehicle.
[0046] Figure 6 shows a specific structure of the above-mentioned sealing lip 10. One end of the sealing lip 10 has a boss 11 protruding towards the sealing cushion layer 42, and a limiting edge 12 is provided on the table surface of the boss 11. The boss 11 is fixed in fit with the curtain guide rail 90 as one side wall of the installation groove 80, and the limiting edge 12 is fixed in abutment with the curtain guide rail 90 as part of the bottom of the installation groove 80.
[0047] Based on the boss 11 and the limiting edge 12, the end of the sealing lip 10 forms an L-shaped structure here, which can limit the curtain guide rail 90 in two intersecting directions (the front-back direction and the height direction of the vehicle body). On this basis, combined with the abutting limit of the sealing cushion layer 42 on the other side wall of the curtain guide rail 90, the three-sided covering constraint of the curtain guide rail 90 can be realized, which can improve the connection reliability and sealing performance of the curtain guide rail 90; in addition, there is a notch between the limiting edge 12 and the sealing cushion layer 42, and the sound absorption support 70 abuts against the curtain guide rail 90 at this notch position and is fixed by bonding or welding after abutment. Thus, on the basis of further improving the connection reliability of the curtain guide rail 90, the noise energy can preferentially contact the sound absorption support 70 for absorption, thereby improving the noise reduction effect.
[0048] It should be noted that, please refer to Figure 2 and Figure 6 . In this embodiment, at least two support ribs 13 are distributed at intervals on the sealing lip 10, and each support rib 13 is in sealed abutting pressure against the door frame sheet metal 30. On the one hand, the two support ribs 13 can enable the door frame sheet metal 30 to form a supporting force on the main body of the sealing lip 10 through the support ribs 13, so that the sealing lip 10 can closely fit on the vehicle door window glass 20, avoiding the occurrence of release gaps on the surface between the sealing lip 10 and the vehicle door window glass 20 resulting in poor sealing. On the other hand, each support rib 13 can form a barrier with sound insulation and sealing effects between the door frame sheet metal 30 and the vehicle door window glass 20, thereby improving the sealing and sound insulation efficiency.
[0049] In some embodiments, referring to Figure 2 , a sealing strip 43 is extruded and sealed between the door frame trim 40 and the inner door panel 60. Specifically, the sealing strip 43 can be a foam gasket. Setting the sealing strip 43 can improve the connection sealing performance between the door frame trim 40 and the inner door panel 60. At the same time, using a foam gasket as the sealing strip 43 also has a certain sound absorption and noise reduction effect.
[0050] Based on the same inventive concept, in combination with Figures 1 to 6 it is understood that an embodiment of the present application further provides a vehicle, including the above-mentioned curtain sealing and sound absorption structure.
[0051] Compared with the prior art, the vehicle provided in this embodiment adopts the above-mentioned curtain sealing and sound absorption structure, which can form a noise treatment effect of isolation-absorption-isolation, thereby reducing the wind noise transmitted into the vehicle through the connection position of the curtain rail 90, improving the interior quietness of the vehicle, and enhancing the driving and riding experience; since the sound absorption support 70 is filled in the installation space 50, it can form a seal around the curtain rail 90, thereby avoiding the problem of poor sealing or failure caused by installing an electric curtain or a manual curtain, improving the waterproof and dustproof performance after installing the curtain on the vehicle window, and further enhancing the vehicle quality.
[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. Curtain sealing and sound absorption structure, characterized in that, Comprising: A sealing lip (10), connected to the edge of the vehicle window glass (20) and sealingly pressing against the doorframe sheet metal (30); A doorframe trim (40), sealingly connected to the inner door panel (60) and forming an installation space (50) with the sealing lip (10); An acoustic absorption support body (70), filled in the installation space (50) and cooperating with the sealing lip (10) and the doorframe trim (40) to enclose an installation groove (80); A curtain guide rail (90), sealingly embedded in the installation groove (80); Wherein, the acoustic absorption support body (70) is formed by topologically connecting a plurality of acoustic absorption units (700).
2. The curtain sealing and sound-absorbing structure according to claim 1, wherein The acoustic absorption support body (70) includes: A honeycomb bracket (71), connected to the sealing lip (10), the curtain guide rail (90) and the doorframe trim (40), and a number of cells (710) are adjacently distributed on the honeycomb bracket (71); Sponge particles (72), filled in each of the cells (710), and the sponge particles (72) are used to resonate under noise excitation to absorb energy; Wherein, each of the cells (710) and the sponge particles (72) filled therein together form the acoustic absorption unit (700).
3. The curtain sealing and sound-absorbing structure according to claim 2, characterized in that, Each of the cells (710) is filled with sponge particles (72) of a variety of different particle sizes.
4. The curtain sealing and sound-absorbing structure according to claim 2, wherein, A through-hole array (711) is arranged on the peripheral wall of the honeycomb bracket (71), and the through-hole array (711) is used to transmit noise excitation energy into the cells (710).
5. The curtain sealing and sound-absorbing structure according to claim 1, characterized in that, One end of the doorframe trim (40) is bent to form a clamping groove (41), the clamping groove (41) has an opposite notch orientation to the installation groove (80), and the acoustic absorption support body (70) is provided with a clamping edge (701), and the clamping edge (701) is clamped in the clamping groove (41).
6. The curtain sealing and sound-absorbing structure according to claim 5, wherein, A sealing cushion layer (42) is arranged on the outer surface of the clamping groove (41) close to the sealing lip (10), and the sealing cushion layer (42) forms one side wall of the installation groove (80) and is in sealing contact with the curtain guide rail (90).
7. The curtain sealing and sound-absorbing structure according to claim 6, wherein One end of the sealing lip (10) has a convex platform (11) protruding towards the sealing cushion layer (42), a limiting edge (12) is arranged on the table surface of the convex platform (11), the convex platform (11) serves as one side wall of the installation groove (80) and is fixedly attached to the curtain guide rail (90), and the limiting edge (12) serves as part of the bottom of the installation groove (80) and abuts and fixes against the curtain guide rail (90).
8. The curtain sealing and sound-absorbing structure according to any one of claims 1 to 7, characterized in that, At least two support ribs (13) are spacedly distributed on the sealing lip (10), and each of the support ribs (13) is sealingly pressed against the doorframe sheet metal (30).
9. The curtain sealing and sound-absorbing structure according to any one of claims 1-7, characterized in that, A sealing strip (43) is extrusion-sealed between the doorframe trim (40) and the inner door panel (60).
10. A vehicle, characterized in that, Comprising the curtain sealing and acoustic absorption structure according to any one of claims 1-9.