CN210805210U - Porous sound absorption plate and sound absorption device - Google Patents
Porous sound absorption plate and sound absorption device Download PDFInfo
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- CN210805210U CN210805210U CN201921174157.0U CN201921174157U CN210805210U CN 210805210 U CN210805210 U CN 210805210U CN 201921174157 U CN201921174157 U CN 201921174157U CN 210805210 U CN210805210 U CN 210805210U
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Abstract
The utility model provides a porous sound absorption board and a sound absorption device, which relate to the technical field of sound absorption boards and comprise a base body part and a sunken part; the base body part is provided with a first sound absorption hole, the base body part is provided with a sunken part, and the sunken part is internally provided with a second sound absorption hole; because the base body portion is provided with first sound-absorbing hole and depressed part respectively, and be provided with the second sound-absorbing hole in the depressed part, the sound wave of effect on the base body portion, partly direct entering is carried out multiple reflection in the first sound-absorbing hole, another part enters into the depressed part and carries out multiple reflection, wherein in the depressed part through in the sound wave of reflection partly further enter into the second sound-absorbing hole again and carry out multiple reflection for partly by the first sound-absorbing hole subduct of the energy of the sound wave of effect on the base body portion, another part is subducted by the depressed part and the second sound-absorbing hole in it, the structure of the sound-absorbing panel among the prior art has been optimized, the sound absorption effect is better.
Description
Technical Field
The utility model belongs to the technical field of the acoustic baffle technique and specifically relates to a porous acoustic baffle and sound absorbing device is related to.
Background
The sound absorption plate is a plate-shaped object which is manufactured according to the acoustic principle and can absorb sound wave energy. The sound absorption board generally comprises a wood sound absorption board, a mineral wool sound absorption board and a cloth sound absorption board, and is mainly used in places with high acoustic environment requirements and high-grade decoration, such as movie theaters, music halls, studios, museums, household noise reduction and the like.
The sound absorption plate is generally provided with sound absorption holes, and sound waves are reflected in the holes, so that the energy of the sound absorption plate is reduced, and the sound absorption effect is achieved.
However, the holes arranged on the traditional sound absorption plate are single in type, the reduction capability of sound wave energy is weak, and the sound absorption effect is unsatisfactory.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a porous acoustic baffle and sound absorbing device to the relatively poor technical problem of acoustic baffle sound absorption effect among the prior art has been alleviated.
In order to solve the technical problem, the utility model provides a technical scheme lies in:
the utility model provides a porous acoustic baffle, include: a base portion and a recess portion;
the base body part is provided with a first sound absorption hole, the base body part is provided with a sunken part, and the sunken part is internally provided with a second sound absorption hole;
the diameter of the first sound-absorbing hole is larger than that of the second sound-absorbing hole or the area of the cross section of the first sound-absorbing hole is larger than that of the cross section of the second sound-absorbing hole.
Furthermore, the first sound absorption holes are arranged in a plurality, and the plurality of first sound absorption holes are uniformly distributed on the base body part.
Furthermore, a plurality of first sound absorption holes are surrounded by a concave part.
Furthermore, the first sound absorption holes and the second sound absorption holes are all round through holes.
Furthermore, the first sound absorption holes and the second sound absorption holes are all polygonal through holes.
The utility model provides a sound absorption device, which comprises a fixing mechanism and a porous sound absorption plate;
the porous sound absorption plate is connected with an external wall body through a fixing mechanism.
Further, the fixing mechanism comprises a fixing component and a connecting piece;
the fixing component is internally provided with a placing area for placing the porous sound absorption plate, one end of the connecting piece is connected with the fixing component, and the other end of the connecting piece is connected with the wall body.
Further, the fixing assembly comprises a fixing frame, a first partition part and a second partition part;
the first partition part and the second partition part are arranged in a region defined by the fixing frame, the axis where the first partition part is located is perpendicular to the axis where the second partition part is located, the first partition part is connected with the second partition part, the two ends of the first partition part are connected with the fixing frame, the two ends of the second partition part are connected with the fixing frame, and a plurality of placing regions are defined among the fixing frame, the first partition part and the second partition part.
Technical scheme more than combining, the utility model discloses the beneficial effect who reaches lies in:
the utility model provides a porous acoustic baffle, include: a base portion and a recess portion; the base body part is provided with a first sound absorption hole, the base body part is provided with a sunken part, and the sunken part is internally provided with a second sound absorption hole. Because the base body portion is provided with first sound-absorbing hole and depressed part respectively, and be provided with the second sound-absorbing hole in the depressed part, the sound wave of effect on the base body portion, partly direct entering is carried out multiple reflection in the first sound-absorbing hole, another part enters into the depressed part and carries out multiple reflection, wherein in the depressed part through in the sound wave of reflection partly further enter into the second sound-absorbing hole again and carry out multiple reflection for partly by the first sound-absorbing hole subduct of the energy of the sound wave of effect on the base body portion, another part is subducted by the depressed part and the second sound-absorbing hole in it, the structure of the sound-absorbing panel among the prior art has been optimized, the sound absorption effect is better.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
For a clear explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a porous sound-absorbing panel according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of A in FIG. 1;
fig. 3 is a schematic structural diagram of a fixing mechanism in a sound absorbing device according to an embodiment of the present invention.
Icon: 100-a base portion; 110-a first sound-absorbing aperture; 200-a recess; 210-a second sound-absorbing aperture; 300-a securing mechanism; 310-a fixed component; 311-a fixed frame; 312-a first partition; 313-a second partition; 320-connecting piece.
Detailed Description
The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic view of the overall structure of the porous sound-absorbing panel according to this embodiment; FIG. 2 is an enlarged view of a portion of A in FIG. 1; fig. 3 is a schematic structural view of a fixing mechanism in the sound absorbing device provided in this embodiment.
As shown in fig. 1, the present embodiment provides a porous sound-absorbing panel including a base portion 100 and a depression 200; the base body 100 is provided with first sound-absorbing holes 110, the base body 100 is provided with recesses 200, and the recesses 200 are provided with second sound-absorbing holes 210.
Specifically, in the alternative embodiment of the present embodiment, the base body 100 may be a wood board, a mineral wool board, or a gypsum board, and preferably, the base body 100 is a rectangular gypsum board, which is inexpensive, durable, non-combustible, non-corrosive, non-damaged by insects, and has good heat insulating properties. The first sound-absorbing holes 110 are arranged in a circular or square shape, and the first sound-absorbing holes 110 can be arranged as through holes or blind holes; the recess 200 is formed as a polygonal groove, the second sound-absorbing holes 210 are formed in the recess 200, the second sound-absorbing holes 210 are formed in a circular shape or a square shape, and the second sound-absorbing holes 210 are formed as through holes. The positional relationship between the first sound-absorbing holes 110 and the recesses 200 can be set in various ways, for example, the plurality of first sound-absorbing holes 110 are individually arranged in rows or columns, the plurality of recesses 200 are also individually arranged in rows or columns, each row of the first sound-absorbing holes 110 and each row of the recesses 200 are adjacently arranged, or the recesses 200 are surrounded between the plurality of first sound-absorbing holes 110, or both the first sound-absorbing holes 110 and the recesses 200 are irregularly arranged on the base body 100.
The utility model provides a porous acoustic baffle, because be provided with first sound-absorbing hole 110 and depressed part 200 on the base part 100 respectively, and be provided with second sound-absorbing hole 210 in the depressed part 200, be used in the sound wave on the base part 100, some direct entering carries out multiple reflection in first sound-absorbing hole 110, another part enters into and carries out multiple reflection in the depressed part 200, wherein in the depressed part 200 through in the sound wave of reflection partly can further carry out multiple reflection again in entering into second sound-absorbing hole 210, make the energy of the sound wave that is used in the base part 100 partly subduct by first sound-absorbing hole 110, another part is subducted by second sound-absorbing hole 210 in depressed part 200 and the inside thereof, the structure of the acoustic baffle among the prior art has been optimized, the sound absorption effect is better.
On the basis of the above embodiment, the present embodiment provides a plurality of first sound-absorbing holes 110 in the porous sound-absorbing panel, and the plurality of first sound-absorbing holes 110 are uniformly distributed on the base body 100.
Specifically, the first sound-absorbing holes 110 are provided in plural, the plural first sound-absorbing holes 110 are uniformly arranged on the entire surface of the base body portion 100, each first sound-absorbing hole 110 is adjacent to the surrounding plural first sound-absorbing holes 110, and in an alternative of the present embodiment, it is preferable that each first sound-absorbing hole 110 is adjacent to the surrounding four first sound-absorbing holes 110.
Further, recesses 200 are defined between the plurality of first sound-absorbing holes 110.
Specifically, as shown in fig. 2, in an alternative of the present embodiment, the recess 200 is disposed between the plurality of first sound-absorbing holes 110, and preferably, the recess 200 is surrounded between four first sound-absorbing holes 110, and the second sound-absorbing hole 210 is disposed at a central position of the recess 200.
Further, the first sound-absorbing hole 110 and the second sound-absorbing hole 210 are both provided as circular through holes.
Specifically, in an alternative of the present embodiment, the first sound-absorbing hole 110 and the second sound-absorbing hole 210 can be respectively provided in various shapes, and preferably, the first sound-absorbing hole 110 and the second sound-absorbing hole 210 are both provided as through holes having a circular cross section.
Further, the diameter of the first sound-absorbing hole 110 is larger than that of the second sound-absorbing hole 210.
Specifically, the diameters of the plurality of first sound-absorbing holes 110 provided in the base body 100 are set to be the same, and the diameters of the plurality of second sound-absorbing holes 210 are also set to be the same; in an alternative of the present embodiment, the diameters of the first and second sound-absorbing holes 110 and 210 can be set to be the same or different, and preferably, the diameter of the first sound-absorbing hole 110 and the diameter of the second sound-absorbing hole 210 are set to be different, and the diameter of the first sound-absorbing hole 110 is larger than the diameter of the second sound-absorbing hole 210.
The porous sound absorption plate provided by the embodiment, the plurality of first sound absorption holes 110 are uniformly distributed on the base body 100, the recessed portion 200 is defined between the plurality of first sound absorption holes 110, the diameter of the circular through hole of the first sound absorption hole 110 is greater than that of the circular through hole of the second sound absorption hole 210, the cross-sectional area of the recessed portion 200 and the cross-sectional areas of the first sound absorption hole 110 and the second sound absorption hole 210 are different, sound waves acting on the base body 100 can enter the first sound absorption hole 110, the recessed portion 200 and the second sound absorption hole 210 of different specifications respectively to be reflected for multiple times, and the curved inner walls of the first sound absorption hole 110 and the second sound absorption hole 210 are favorable for increasing the number of times of sound wave reflection, and the sound absorption effect is improved.
On the basis of the above-described embodiments, the present embodiment provides a porous sound-absorbing panel in which both the first sound-absorbing holes 110 and the second sound-absorbing holes 210 are provided as polygonal through holes.
Specifically, the first sound-absorbing hole 110 and the second sound-absorbing hole 210 in this embodiment are both square through holes, and preferably, the first sound-absorbing hole 110 and the second sound-absorbing hole 210 are both hexagonal through holes.
Further, the area of the cross-section of the first sound-absorbing hole 110 is larger than that of the cross-section of the second sound-absorbing hole 210.
Specifically, in an alternative of the present embodiment, the cross-sectional area of the first sound-absorbing hole 110 and the cross-sectional area of the second sound-absorbing hole 210 may be set to be the same or different, and preferably, the cross-sectional area of the first sound-absorbing hole 110 and the cross-sectional area of the second sound-absorbing hole 210 are set to be different, and the cross-sectional area of the first sound-absorbing hole 110 is larger than the cross-sectional area of the second sound-absorbing hole 210, and the cross-sectional area of the recess 200, the cross-sectional area of the first sound-absorbing hole 110, and the cross-sectional area of the second sound-absorbing.
In the porous sound absorption plate provided by this embodiment, the first sound absorption holes 110 and the second sound absorption holes 210 are all set to be polygonal through holes, and the area of the cross section of the first sound absorption holes 110 is larger than the area of the cross section of the second sound absorption holes 210, so that the structure of the porous sound absorption plate provided by this embodiment is enriched.
On the basis of the above embodiments, the present embodiment provides a sound absorption apparatus, which includes a fixing mechanism 300 and a porous sound absorption plate; the perforated sound absorption panel is connected to an external wall through a fixing mechanism 300.
Specifically, the fixing mechanism 300 may be provided as a screw or a combination of a screw and other supports, and the perforated sound-absorbing panel is mounted on an external wall or other objects through the fixing mechanism 300.
Further, the fixing mechanism 300 includes a fixing member 310 and a connecting member 320; the fixing member 310 has a placement region for placing the perforated sound absorption plate therein, and one end of the connecting member 320 is connected to the fixing member 310 and the other end is connected to the wall.
Specifically, fixed subassembly 310 sets up the frame construction that the rectangular form board of aluminum alloy encloses and establishes, has the region of placing porous acoustic baffle in fixed subassembly 310, connecting piece 320 includes the connecting rod, the one end threaded connection of connecting rod has the inflation screw, the other end threaded connection of connecting rod has joint spare, inflation screw and wall connection are passed through to the one end of connecting rod, the other end passes through joint spare joint on fixed subassembly 310, in order to suspend porous acoustic baffle in midair in the lower part of the top wall in the building.
Further, the fixing assembly 310 includes a fixing frame 311, a first partition 312, and a second partition 313; the first partition part 312 and the second partition part 313 are arranged in an area defined by the fixed frame 311, the axis of the first partition part 312 is perpendicular to the axis of the second partition part 313, the first partition part 312 is connected with the second partition part 313, two ends of the first partition part 312 are connected with the fixed frame 311, two ends of the second partition part 313 are connected with the fixed frame 311, and a plurality of placing areas are defined among the fixed frame 311, the first partition part 312 and the second partition part 313.
Specifically, as shown in fig. 3, the fixing frame 311 is a rectangular frame formed by overlapping four first connecting bars made of aluminum alloy, and the cross section of each first connecting bar is L-shaped; the first separating part 312 and the second separating part 313 are both provided with a plurality of second connecting strips made of aluminum alloy, and the cross sections of the second connecting strips are in an I shape. The first partition parts 312 are arranged in the rectangular frame of the fixing frame 311 at equal intervals, the second partition parts 313 are also arranged in the rectangular frame of the fixing frame 311 at equal intervals, the axis of the first partition part 312 is perpendicular to the axis of the second partition part 313, two ends of the first partition part 312 are respectively clamped on two sides of the fixing frame 311, two ends of the second partition part 313 are respectively clamped on two sides of the fixing frame 311, and a plurality of placing areas are enclosed among the fixing frame 311, the first partition part 312 and the second partition part 313. One side of the porous sound-absorbing panel near the edge of the fixing frame 311 is lapped on the first connecting strip of the L-shape, and the other three sides of the porous sound-absorbing panel are lapped on the second connecting strips of the first and second partitions 312 and 313 in the shape of an i; the four sides of the perforated sound-absorbing panel, which are away from the edge of the fixed frame 311, are overlapped on the second connecting strips of the i-shaped first and second partitions 312 and 313. The connection member 320 has one end connected to a wall surface of the ceiling inside the building and the other end connected to the fixing frame 311 or the first partition 312 or the second partition 313.
The sound absorption device of the present embodiment is configured such that, when the perforated sound absorption panel is suspended from the lower portion of the ceiling wall surface in the building in the manner provided by the present embodiment, the perforated sound absorption panel abuts against the fixing member 310 due to its own weight, and the L-shaped fixing frame 311 and the first and second partitions 312 and 313 of the h-shape can restrict horizontal and vertical movement of the perforated sound absorption panel.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A perforated sound absorption panel, comprising: a base portion and a recess portion;
the base body part is provided with a first sound absorption hole, the base body part is provided with a sunken part, and the sunken part is internally provided with a second sound absorption hole;
the diameter of the first sound-absorbing hole is larger than that of the second sound-absorbing hole, or the area of the cross section of the first sound-absorbing hole is larger than that of the cross section of the second sound-absorbing hole.
2. The perforated sound absorbing panel according to claim 1, wherein the first sound absorbing holes are provided in plurality, and the plurality of first sound absorbing holes are uniformly distributed on the base body portion.
3. The perforated sound absorbing panel according to claim 2, wherein the depressions are surrounded between a plurality of the first sound absorbing holes.
4. The perforated sound absorbing panel as claimed in claim 1, wherein the first sound-absorbing holes and the second sound-absorbing holes are each provided as a circular through-hole.
5. The perforated sound absorbing panel as claimed in claim 1, wherein the first sound absorbing holes and the second sound absorbing holes are each provided as a polygonal through-hole.
6. A sound-absorbing device comprising a fixing means and the porous sound-absorbing panel as recited in any one of claims 1 to 5;
the porous sound absorption plate is connected with an external wall body through the fixing mechanism.
7. The sound absorbing device of claim 6, wherein the securing mechanism includes a securing assembly and a connector;
the fixing component is internally provided with a placing area for placing the porous sound absorption plate, one end of the connecting piece is connected with the fixing component, and the other end of the connecting piece is connected with the wall body.
8. The sound absorbing device as recited in claim 7 wherein the fixing assembly includes a fixing frame, a first partition and a second partition;
the first partition part and the second partition part are arranged in a region defined by the fixing frame, the axis of the first partition part is perpendicular to the axis of the second partition part, the first partition part is connected with the second partition part, two ends of the first partition part are connected with the fixing frame, two ends of the second partition part are connected with the fixing frame, and the fixing frame, the first partition part and the second partition part are surrounded by a plurality of placing regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174157.0U CN210805210U (en) | 2019-07-24 | 2019-07-24 | Porous sound absorption plate and sound absorption device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921174157.0U CN210805210U (en) | 2019-07-24 | 2019-07-24 | Porous sound absorption plate and sound absorption device |
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| Publication Number | Publication Date |
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| CN210805210U true CN210805210U (en) | 2020-06-19 |
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| CN201921174157.0U Active CN210805210U (en) | 2019-07-24 | 2019-07-24 | Porous sound absorption plate and sound absorption device |
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| CN (1) | CN210805210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113362795A (en) * | 2021-05-10 | 2021-09-07 | 西安交通大学 | Porous sound absorbing structure of petal-shaped channel |
-
2019
- 2019-07-24 CN CN201921174157.0U patent/CN210805210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113362795A (en) * | 2021-05-10 | 2021-09-07 | 西安交通大学 | Porous sound absorbing structure of petal-shaped channel |
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