Sound-absorbing cotton structure high in sound absorption and convenient to assemble

Abstract

The utility model relates to the technical field of sound-absorbing cotton structures, and discloses a high-sound-absorbing and convenient-to-assemble sound-absorbing cotton structure which comprises a sound-absorbing cotton body and an avoiding space arranged on the sound-absorbing cotton body, at least two opening grooves are formed in the sound-absorbing cotton body, and all the opening grooves are arranged along the periphery of the avoiding space. One end of each opening groove communicates with the corresponding avoiding space, the other end of each opening groove extends to one side of the corresponding avoiding space, and the part, between every two adjacent opening grooves, of the sound-absorbing cotton body is used for being folded to form a movable space temporarily matched with a part. According to the utility model, the open slot structure is arranged, so that a temporary activity space can be formed on the sound-absorbing cotton body for smoothly installing the sound-absorbing cotton body, the area of the sound-absorbing cotton body is effectively reserved, and the problem that the sound-absorbing and sound-insulating effects are reduced when the sound-absorbing cotton is matched with parts with variable sizes in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sound-absorbing cotton structures, and particularly relates to a sound-absorbing cotton structure with high sound absorption and convenient assembly. Background Art

[0002] Sound-absorbing cotton is a kind of artificial inorganic fiber. Using natural ores such as quartz sand, limestone, and dolomite as the main raw materials, and mixing some chemical raw materials such as soda ash and borax to melt into glass. In the molten state, it is blown or spun into flocculent fine fibers by external force. The fibers are three-dimensionally crossed and intertwined with each other, presenting many small gaps. The sound-absorbing cotton has a high sound absorption rate and good sound insulation performance, and is widely used in vehicles to improve the sound insulation effect of vehicles. At present, when setting sound-absorbing cotton on vehicles, the sound-absorbing cotton structure is directly pasted on the panel structure that needs sound absorption and insulation. In the actual operation process, due to the complex internal structure of the vehicle, there may be other components protruding from the panel on the panel where the sound-absorbing cotton is pasted. When there are other protruding components, the conventional method is to open avoidance holes, avoidance grooves and other avoidance spaces on the sound-absorbing cotton that match the components.

[0003] For components with a constant diameter or size, such as cylindrical protrusions with an unchanged diameter, etc., only need to set avoidance holes with the same diameter as the cylindrical protrusions on the sound-absorbing cotton, so that a good matching relationship can be formed between the cylindrical protrusions and the sound-absorbing cotton. However, in the actual application process, due to the various structural shapes of the parts on the vehicle, the middle width or diameter of many component structures is larger than the end size of the components, or there are other structures protruding from the outer wall of the component on the side wall of the component. At this time, if you want to complete the assembly of the sound-absorbing cotton, you must add new avoidance spaces or expand the existing avoidance spaces on the sound-absorbing cotton. Although this method can successfully complete the assembly of the sound-absorbing cotton, after the assembly is completed, the actual area of the avoidance space opened on the sound-absorbing cotton is larger than the matching area of the component at the position where it matches the component after assembly, resulting in a reduction in the sound-absorbing area of the sound-absorbing cotton and a decrease in the sound absorption and insulation effect of the sound-absorbing cotton. Summary of the Utility Model

[0004] The utility model aims to provide a sound-absorbing cotton structure with high sound absorption and convenient assembly, so as to solve the problem that the sound absorption and insulation effect of the existing sound-absorbing cotton decreases when matching components with variable sizes.

[0005] To solve the above problems, the utility model adopts the following technical scheme: A sound-absorbing cotton structure with high sound absorption and convenient assembly, including a sound-absorbing cotton body and an avoidance space arranged on the sound-absorbing cotton body. At least two opening grooves are opened on the sound-absorbing cotton body, and all the opening grooves are arranged along the periphery of the avoidance space. One end of the opening groove is communicated with the avoidance space, and the other end extends to one side of the avoidance space. The part of the sound-absorbing cotton body between adjacent opening grooves is used for folding to form a movable space that temporarily matches the component.

[0006] The principle and beneficial effects of this solution are as follows: By opening at least two opening grooves on the sound-absorbing cotton body, one end of the opening groove communicates with the avoidance space, and the other end extends toward one side of the avoidance space, so that the part of the sound-absorbing cotton body between two adjacent opening grooves forms a foldable movable part. After the movable part is folded, a certain space will be left to form a movable space for the assembly avoidance of components. Even if the size of the middle part of the assembled component increases or there are protruding structures outside the outer wall of the component, the installation and fixation of the sound-absorbing cotton body can be successfully completed by relying on the provided movable space. And after the sound-absorbing cotton body is successfully installed and fixed on the panel in the prior art, the foldable movable part on the sound-absorbing cotton body can be folded back to the original state, so that the movable part and the sound-absorbing cotton body are in the same plane and can play the same sound-absorbing and sound-insulating effect as the sound-absorbing cotton body.

[0007] In this application, due to the setting of the opening groove structure, a movable space with a function similar to the avoidance function of the avoidance space can be temporarily formed on the sound-absorbing cotton body. Thus, when the size of the middle part of the component becomes larger or there are other protruding structures on the outer wall, the formed movable space is used for effective avoidance, so that the assembly of the sound-absorbing cotton can be successfully completed. And after the assembly is completed, the movable part is restored. Compared with the way of newly opening an avoidance space or expanding the avoidance space in the prior art, the area of the sound-absorbing cotton body can be retained as much as possible, so that the sound-absorbing cotton structure has a better sound-absorbing and sound-insulating effect, and it is also very convenient to install the sound-absorbing cotton.

[0008] Preferably, as an improvement, first sealing parts are arranged on both sides of the opening groove.

[0009] In this solution, first sealing parts are arranged on both sides of the opening groove, and the first sealing parts are used to seal both sides of the opening groove to prevent the material inside the sound-absorbing cotton body from leaking out of the sound-absorbing cotton body through the opening position of the opening groove. This can not only effectively ensure the sound-absorbing effect of the sound-absorbing cotton, but also keep the space around the sound-absorbing cotton clean after the sound-absorbing cotton is assembled.

[0010] Preferably, as an improvement, the first sealing part includes a hot-melt sealing edge arranged on the sound-absorbing cotton body.

[0011] In this solution, the first sealing part is a hot-melt sealing edge. The hot-melt sealing edge that can realize the sealing function is directly formed on the sound-absorbing cotton body by hot-melt method. More importantly, the hardness of the hot-melt sealing edge formed by the hot-melt method is higher than that of the sound-absorbing cotton body. Hot-melt sealing edges are correspondingly arranged on both sides of the part of the sound-absorbing cotton body between two opening grooves that is used to fold and form the movable space. It is equivalent to that the hot-melt sealing edge plays a role of skeleton support for this part of the sound-absorbing cotton body, so that the folding process of this part of the sound-absorbing cotton body is more convenient.

[0012] In addition, the panel structure for installing the sound-absorbing cotton in the prior art may be in a horizontal state, but it may also be in an inclined or vertical state. When the panel is in an inclined or vertical state, if only an opening groove is provided on the sound-absorbing cotton body without a hot-melt sealing edge, after the sound-absorbing cotton body is installed on the panel, since the sound-absorbing cotton body is relatively soft, the sound-absorbing cotton body for forming the movable space part may wrinkle or collapse under its own gravity, resulting in a reduction in the area of the sound-absorbing cotton body for sound absorption and sound insulation, and reducing its sound absorption and sound insulation effect. Therefore, adopting the method of setting the hot-melt sealing edge in this solution can not only achieve a good sealing effect, but also play an auxiliary supporting role for the part of the sound-absorbing cotton body for forming the movable space, so that the part of the sound-absorbing cotton body is in a flat state during the assembly process. Moreover, after the sound-absorbing cotton body is installed, the hot-melt sealing edge can also play a role of skeleton support, avoiding wrinkling or collapse of this part of the sound-absorbing cotton body, ensuring the integrity of the sound-absorbing cotton body, and making the sound absorption and sound insulation effect of the sound-absorbing cotton body better.

[0013] Preferably, as an improvement, the width of the hot-melt sealing edge is 2-3 mm.

[0014] In this solution, the width of the hot-melt sealing plate is set to 2-3 mm. In this width range, the hot-melt sealing edge has sufficient strength to stably support the part of the sound-absorbing cotton body for forming the movable space, and at the same time, it also avoids the width of the hot-melt sealing edge being too large and overly occupying the area of the sound-absorbing cotton body, so as not to overly affect the sound absorption and sound insulation effect of the sound-absorbing cotton.

[0015] Preferably, as an improvement, the hot-melt sealing edges on both sides of the opening groove are connected as a whole.

[0016] In this solution, the ends of the two hot-melt sealing edges at the end of the opening groove away from the avoidance space are connected as a whole, which can achieve a good sealing and leak-proof effect, and at the same time, the integrity of the entire sound-absorbing cotton structure is stronger.

[0017] Preferably, as an improvement, the width of the opening groove is less than or equal to 10 mm.

[0018] In this solution, the width of the opening groove is set to be less than or equal to 10 mm, avoiding the width of the opening groove being too wide, which not only affects the appearance of the sound-absorbing cotton structure, but also avoids the area of the opening groove being too large and affecting the sound absorption and sound insulation effect of the sound-absorbing cotton.

[0019] Preferably, as an improvement, the distance between the opening groove and the edge of the sound-absorbing cotton body is 5-20 mm.

[0020] In this solution, the distance between the opening groove and the edge of the sound-absorbing cotton body is 5 - 20 mm, which can avoid the influence on the structure of the sound-absorbing cotton body caused by too close distance between the opening groove and the edge of the sound-absorbing cotton body, so that the sound-absorbing cotton body is not easily damaged after the opening groove is formed during use.

[0021] Preferably, as an improvement, a second sealing part matching the contour of the avoidance space is arranged on the sound-absorbing cotton body.

[0022] In this solution, by arranging the second sealing part matching the contour of the avoidance space, the second sealing part is used to prevent the material inside the sound-absorbing cotton body from leaking out from the contour position of the avoidance space.

[0023] Preferably, as an improvement, the second sealing part includes a hot-melt sealing ring arranged on the sound-absorbing cotton body.

[0024] In this solution, the second sealing part is a hot-melt sealing ring. The hot-melt sealing ring is similar to the hot-melt sealing edge, which can play the roles of sealing and stabilizing the overall structure stability of the sound-absorbing cotton body at the same time, and the hot-melt sealing ring can be integrally hot-melt formed with the hot-melt sealing edge at the same time, making the processing and forming more convenient.

[0025] Preferably, as an improvement, the width of the hot-melt sealing ring is less than or equal to the width of the hot-melt sealing edge.

[0026] Since the hot-melt sealing edge plays a more important role in providing skeleton support in this solution, and the main function of the hot-melt sealing ring is to seal and prevent leakage, therefore, in this solution, in order to reduce the area of the sound-absorbing cotton body occupied by the hot-melt sealing ring, the width of the hot-melt sealing ring is set to be less than or equal to the width of the hot-melt sealing edge, effectively ensuring the sound absorption and sound insulation effect of the sound-absorbing cotton body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of Embodiment 1 of the present utility model.

[0028] Figure 2 is Figure 1 the top view of.

[0029] Figure 3 is Figure 2 a schematic diagram of the movable space obtained by folding the part of the sound-absorbing cotton body between two opening grooves in.

[0030] Figure 4 It is the top view of Embodiment 2 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following is further detailed through specific embodiments:

[0032] The reference numerals in the drawings of the specification include: the sound-absorbing cotton body 1, the avoidance hole 101, the opening groove 102, the activity space 2, the hot-melt sealing edge 3, and the hot-melt sealing ring 4.

[0033] Embodiment 1

[0034] This Embodiment 1 is as shown in the attached Figure 1 figures: A sound-absorbing cotton structure with high sound absorption and convenient assembly, including a sound-absorbing cotton body 1 and an avoidance space opened on the sound-absorbing cotton body 1. The material of the sound-absorbing cotton body 1 in this embodiment is a PP+PET double combination. The avoidance space of the sound-absorbing cotton body 1 is a circular avoidance hole 101. In other embodiments other than this embodiment, the avoidance space can be a groove-shaped structure or other shape structures for avoidance, and the specific avoidance structure is specifically determined according to the shape of the corresponding parts to be avoided, which will not be elaborated here.

[0035] Combined with Figure 1 and Figure 2 , at least two opening grooves 102 are opened on the sound-absorbing cotton body 1, and the opening grooves 102 are arranged along the periphery of the avoidance space. In this embodiment, the number of the opening grooves 102 is two, and the two opening grooves 102 are both arranged along the radial direction of the avoidance hole 101. One end of the opening groove 102 is communicated with the avoidance hole 101, and the other end extends along the radial direction of the avoidance hole 101 to one side of the avoidance hole 101. Among them, the width of the opening groove 102 is less than or equal to 10 mm, and the distance between the opening groove 102 and the edge of the sound-absorbing cotton body 1 is 5-20 mm. In this embodiment, the width of the opening groove 102 is preferably 1 mm, and the minimum distance between the end of the opening groove 102 and the edge of the sound-absorbing cotton body 1 is 20 mm. Of course, in other embodiments other than this embodiment, the width of the opening groove 102 can be 0, that is, only a slit is opened to form the opening groove 102, which will not be elaborated here. Combined with Figure 1 and Figure 2 , when the part of the sound-absorbing cotton body 1 between the two opening grooves 102 is turned up, the part of the sound-absorbing cotton body 1 between the two opening grooves 102 is no longer blocked by the sound-absorbing cotton body 1 and forms an activity space 2 as shown in Figure 3 figures (the part shown by the cross-hatching is the formed activity space 2). The activity space 2 is in a mutually communicating state with the avoidance hole 101, so that the avoidance hole 101 and the activity space 2 can form a larger avoidance space.

[0036] The specific implementation process is as follows:

[0037] The sound-absorbing cotton structure in this embodiment is used for the situation where there are other components on the panel and there are convex structures on the side walls of the components, and the components are cylindrical. The diameter of the avoidance hole 101 is equal to the diameter of the cylindrical components, and the shape and area of the movable space 2 are equal to the shape and cross-sectional area of the convex structures on the side walls of the components. When the sound-absorbing cotton body 1 is installed on the panel, the components and the main structure are matched with the avoidance groove. When the sound-absorbing cotton body 1 passes through the convex structures on the outer wall of the components, the part of the sound-absorbing cotton body 1 between the two opening grooves 102 is flipped, so that this part forms Figure 2 the movable space 2 shown. The movable space 2 plays an avoidance role for the convex structures on the outer wall of the components, so that the sound-absorbing cotton body 1 can be smoothly installed and attached to the panel. And when the sound-absorbing cotton body 1 is attached and installed on the panel, the part of the sound-absorbing cotton body 1 between the two opening grooves 102 is flipped so that this part is restored. At this time, the sound-absorbing cotton body 1 only forms an avoidance structure for the avoidance hole 101, and the avoidance hole 101 is attached to the outer wall of the component. At this time, the sound-absorbing cotton body 1 can retain the largest sound-absorbing and sound-insulating area, so that the sound-absorbing cotton structure has a good sound-absorbing and sound-insulating effect.

[0038] Adopting the sound-absorbing cotton structure in this embodiment, even if the middle size of the components on the panel becomes larger or there are convex structures on the outer wall of the components, by setting the opening groove 102 structure in this embodiment, the part of the sound-absorbing cotton body 1 between the two opening groove 102 structures can form a movable space 2 for avoidance, which can not only make the sound-absorbing cotton be smoothly installed on the panel, but also retain the area of the sound-absorbing cotton body 1 to the greatest extent. Compared with the method of directly opening a new avoidance space or expanding the avoidance space on the sound-absorbing cotton body 1 in the prior art, it can achieve a better sound-absorbing and sound-insulating effect.

[0039] Embodiment Two

[0040] The difference between Embodiment Two and Embodiment One is that as Figure 4 shown, in this embodiment, first sealing parts are provided on both sides of the opening groove 102, and second sealing parts are provided on the sound-absorbing cotton body 1 that are matched with the contour of the avoidance space. The first sealing part is a hot-melt sealing edge 3 integrally formed on the sound-absorbing cotton body 1 by a hot-melt method, and the second sealing part is a hot-melt sealing ring 4 integrally formed on the sound-absorbing cotton body 1 by a hot-melt method. The width of the hot-melt sealing edge 3 is 2-3 mm, and the width of the hot-melt sealing ring 4 is less than or equal to the width of the hot-melt sealing edge 3. Specifically, the width of the hot-melt sealing edge 3 is 3 mm, and the width of the hot-melt sealing ring 4 is 2 mm.

[0041] In this embodiment, by providing a hot-melt sealing edge 3 and a hot-melt sealing ring 4, it is possible to seal the opening position provided on the sound-absorbing cotton body 1, preventing the materials inside the sound-absorbing cotton body 1 from leaking outside the sound-absorbing cotton body 1. This not only ensures the sound-absorbing and sound-insulating effects of the sound-absorbing cotton body 1 but also effectively guarantees the cleanliness of the rear panel position where the sound-absorbing cotton structure is installed. Additionally, due to the relatively high hardness of the hot-melt sealing edge 3, it can provide a framework support for the sound-absorbing cotton body 1, thereby preventing wrinkles or collapse during the use of the sound-absorbing cotton body 1 and ensuring that the sound-absorbing cotton body 1 has good sound-absorbing and sound-insulating effects.

[0042] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A sound-absorbing cotton structure with high sound absorption and easy assembly, comprising a sound-absorbing cotton body and a avoidance space arranged on the sound-absorbing cotton body, characterized in that: At least two opening grooves are provided on the sound-absorbing cotton body, and all the opening grooves are arranged along the four sides of the avoidance space. One end of the opening groove is connected to the avoidance space, and the other end extends to one side of the avoidance space. The part of the sound-absorbing cotton body between adjacent opening grooves is used to fold to form an activity space that temporarily cooperates with parts.

2. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 1, characterized in that: First sealing parts are provided on both sides of the opening groove.

3. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 2, characterized in that: The first sealing portion includes a hot-melt sealing edge arranged on the sound-absorbing cotton body.

4. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 3, characterized in that: The width of the hot melt sealing edge is 2-3 mm.

5. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 4, characterized in that: The hot-melt sealing edges on both sides of the opening groove are connected as a whole.

6. The sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 1 is characterized by: The width of the opening groove is less than or equal to 10 mm.

7. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 1, characterized in that: The distance between the opening groove and the edge of the sound-absorbing cotton body is 5-20 mm.

8. The sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 3 is characterized by: The sound-absorbing cotton body is provided with a second sealing portion matching the contour of the avoidance space.

9. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 8, characterized in that: The second sealing portion includes a hot-melt sealing ring arranged on the sound-absorbing cotton body.

10. A sound-absorbing cotton structure with high sound absorption and easy assembly according to claim 9, characterized in that: The width of the hot-melt sealing ring is less than or equal to the width of the hot-melt sealing edge.

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