CN217630595U

CN217630595U - Sound absorption structure's anechoic chamber has in edges and corners department

Info

Publication number: CN217630595U
Application number: CN202221653163.6U
Authority: CN
Inventors: 查颖杰; 费洁; 张力
Original assignee: Beijing Lande Technology Co ltd
Current assignee: Beijing Lande Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-21
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a edges and corners department has sound absorbing structure's anechoic chamber, including EVA sponge board and amortization frame, EVA sponge board fixed connection is in the open end position of amortization frame, EVA sponge board surface equidistance is provided with the ellipse circular type and inhales sound hole and rhombus and inhales the sound hole, amortization frame inner wall bonds and has inhale cotton liner A of sound, inhale cotton liner B of sound and inhale cotton liner C of sound. The amortization frame passes through connecting seat fixed connection assembly plate, the assembly plate surface bonds and has two-sided adhesive tape, when the edges and corners position installation amortization frame of relative amortization room, it is fixed to bond the assembly plate through two-sided adhesive tape, the relative amortization room of amortization frame is unsettled state this moment, the noise is inhaled the sound hole through the ellipse type on EVA spongy plate surface and is inhaled the sound hole with the rhombus and get into inside the amortization frame, cut apart and reflect the sound wave through toper rounding table and reflecting table A and reflecting table B, the cotton liner A is inhaled to the rethread, inhale cotton liner B and inhale cotton liner C and inhale the sound processing, has fine noise elimination function.

Description

Sound absorption structure's anechoic chamber has in edges and corners

Technical Field

The utility model belongs to the technical field of sound-absorbing structure for the anechoic chamber, concretely relates to edges and corners department has sound-absorbing structure's anechoic chamber.

Background

The anechoic chamber is not only a special laboratory for acoustic testing, but also an important component of a testing system, and actually is one of acoustic testing devices, and acoustic performance indexes of the anechoic chamber directly influence the testing accuracy.

The wall of anechoic chamber and the edge angle formed by the indoor top plate can reflect sound, and are not beneficial to sound absorption treatment, so that the anechoic chamber with the sound absorption structure at the edge angle is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a edges and corners department has sound-absorbing structure's anechoic chamber to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an edge has sound absorbing structure's anechoic chamber, includes EVA sponge board and amortization frame, EVA sponge board fixed connection is in the open end position of amortization frame, EVA sponge board surface equidistance is provided with the ellipse circular type and inhales the sound hole and the sound hole is inhaled to the rhombus, amortization frame inner wall bonds and has inhale cotton liner A of sound, inhale cotton liner B of sound and inhale cotton liner C of sound, inhale cotton liner A surface intermediate position fixed connection taper type cut-off platform of sound, inhale cotton liner B surface equidistance installation reflecting platform A of sound, inhale cotton liner C surface equidistance installation reflecting platform B of sound, amortization frame back position is through connecting seat fixed connection assembly plate, the assembly plate surface bonds and has two-sided adhesive tape.

Preferably, inhale sound cotton liner B and inhale sound cotton liner C and be located respectively and inhale sound cotton liner A upper and lower both sides, and inhale the cotton liner A terminal surface of sound and extend to inhale the cotton liner B of sound and inhale the terminal surface position of sound cotton liner C.

Preferably, the conical partition table is positioned on one side of the EVA sponge plate, and the conical partition table is positioned between the reflecting table A and the reflecting table B.

Preferably, the surface of the assembly plate is provided with an elliptical sound insulation hole, and the elliptical sound insulation hole extends to the end face of the assembly plate.

Preferably, the upper surface of the silencing frame is fixedly connected with a flexible adhesive tape A, two ends of the flexible adhesive tape A extend to the end face of the silencing frame, and the surface of the flexible adhesive tape A is provided with a circular through hole A.

Preferably, the back of the silencing frame is fixedly connected with a flexible adhesive tape B, two ends of the flexible adhesive tape B extend to the end face of the silencing frame, and a circular through hole B is formed in the surface of the flexible adhesive tape B.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the amortization frame passes through connecting seat fixed connection assembly plate, the assembly plate surface bonds and has two-sided adhesive tape, when the edges and corners position installation amortization frame of relative amortization room, bond fixedly the assembly plate through two-sided adhesive tape, the relative amortization room of amortization frame this moment is unsettled state, the noise is inhaled sound hole and rhombus through the ellipse circular of EVA sponge sheet surface and is inhaled inside the sound hole gets into the amortization frame, cut apart and reflect the sound wave through toper rounding table and reflecting table A and reflecting table B, sound cotton liner A is inhaled to the rethread, inhale sound cotton liner B and inhale sound cotton liner C and inhale the sound processing, have fine noise elimination function.

2. The edges and corners of the silencing chamber are fixedly bonded by the two-sided adhesive tape of the assembling plate, the flexible adhesive tape A and the flexible adhesive tape B on the outer wall of the silencing frame are attached to the inner wall of the silencing chamber, and when the flexible adhesive tape A and the flexible adhesive tape B support the silencing frame in an auxiliary mode, the contact area between the silencing frame and the silencing chamber can be effectively reduced, so that sound waves are reduced, and the silencing chamber has good sound absorption and noise reduction performance.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional structure view of the sound-deadening frame and the assembling plate of the present invention;

fig. 3 is a schematic view of the structure of the outer surface of the sound-deadening frame and the assembling plate of the present invention.

In the figure: 1. an EVA sponge plate; 101. an elliptical sound absorption hole; 102. a diamond-shaped sound absorption hole; 2. a sound deadening frame; 201. a sound absorbing cotton pad A; 202. a sound absorbing cotton pad B; 203. a sound absorbing cotton pad C; 3. a flexible adhesive tape A; 4. a flexible adhesive tape B; 5. a conical partition table; 6. assembling a plate; 601. a connecting seat; 7. double-sided adhesive tapes; 8. a reflection table A; 9. and a reflection stage B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a edges and corners department has sound-absorbing structure's anechoic chamber, including EVA sponge board 1 and amortization frame 2, EVA sponge board 1 fixed connection is in the open end position of amortization frame 2, EVA sponge board 1 surface equidistance is provided with oval type and inhales sound hole 101 and rhombus and

inhales sound hole

102, 2 inner walls of amortization frame bond have inhale sound cotton liner A201, inhale sound cotton liner B202 and inhale sound cotton liner C203, inhale sound cotton liner A201 surface intermediate position fixed connection cone type partition table 5, inhale sound cotton liner B202 surface equidistance installation reflecting table A8, inhale sound cotton liner C203 surface equidistance installation reflecting table B9, amortization frame 2 back position is through connecting seat 601 fixed

connection assembly plate

6, 6 surface bonds have two-sided adhesive tape 7, inhale sound cotton liner B202 and inhale sound cotton liner C203 and be located respectively and inhale sound cotton liner A201 upper and lower both sides of sound, and inhale the end position that sound cotton liner A201 terminal surface extends to inhale sound cotton liner B202 and inhale the end position of sound cotton liner C203, cone type partition table 5 is located EVA sponge board 1 one side, partition table 5 is located between reflecting table A8 and the reflecting table B9, it extends to separate the sound hole and set up the sound-absorbing type assembling plate 6 terminal surface.

As can be seen from the above description, the present invention has the following advantages: noise damping frame 2 passes through connecting seat 601 fixed

connection assembly plate

6, 6 surface bonds there is two-sided adhesive tape 7 of assembly plate, when the edges and corners position installation noise damping frame 2 of relative anechoic chamber, it is fixed to bond assembly plate 6 through two-sided

adhesive tape

7, 2 relative anechoic chambers of noise damping frame are unsettled states this moment, the noise is inhaled sound hole 101 and rhombus through the oval type on EVA sponge board 1 surface and is inhaled sound hole 102 and get into noise damping frame 2 inside, cut apart and reflect the sound wave through toper type rounding table 5 and reflecting table A8 and reflecting table B9, the cotton liner A201 is inhaled to the rethread, inhale sound cotton liner B202 and inhale sound processing with inhaling sound cotton liner C203, have fine noise elimination function.

Example two:

referring to fig. 1 and fig. 2, based on the first embodiment, the present invention provides a technical solution: fixed surface connects flexible adhesive tape A3 on the frame that disappears 2, and flexible adhesive tape A3 both ends all extend to the terminal surface position of frame that disappears 2, and flexible adhesive tape A3 surface is provided with circular through-hole A, 2 back fixed surface connections flexible adhesive tape B4 of amortization frame, and flexible adhesive tape B4 both ends all extend to the terminal surface position of frame that disappears 2, and flexible adhesive tape B4 surface is provided with circular through-hole B.

The edges and corners of the silencing chamber are fixedly bonded with the silencing frame 2 through the double-sided adhesive tape 7 of the assembling plate 6, the flexible adhesive tape A3 and the flexible adhesive tape B4 on the outer wall of the silencing frame 2 are attached to the inner wall of the silencing chamber, and when the flexible adhesive tape A3 and the flexible adhesive tape B4 support the silencing frame 2, the contact area between the silencing frame 2 and the silencing chamber can be effectively reduced, so that the transmission of sound waves is reduced, and the sound-absorbing and noise-reducing performance is good.

The utility model discloses a theory of operation and use flow: the assembly plate 6 is fixedly connected with the sound-absorbing frame 2 through the connecting seat 601, the double-sided adhesive tape 7 is bonded on the outer surface of the assembly plate 6, when the sound-absorbing frame 2 is installed at the corner position of the relative sound-absorbing chamber, the assembly plate 6 is bonded and fixed through the double-sided adhesive tape 7, the sound-absorbing frame 2 is in a suspended state relative to the sound-absorbing chamber, noise enters the interior of the sound-absorbing frame 2 through the oval sound-absorbing hole 101 and the rhombic sound-absorbing hole 102 on the surface of the EVA sponge plate 1, sound waves are divided and reflected through the conical division table 5, the reflection table A8 and the reflection table B9, and sound-absorbing treatment is carried out through the sound-absorbing cotton pad A201, the sound-absorbing cotton pad B202 and the sound-absorbing cotton pad C203, so that the sound-absorbing function is good; the edges and corners of the silencing chamber are fixedly bonded with the silencing frame 2 through the double-sided adhesive tape 7 of the assembling plate 6, the flexible adhesive tape A3 and the flexible adhesive tape B4 on the outer wall of the silencing frame 2 are attached to the inner wall of the silencing chamber, and when the flexible adhesive tape A3 and the flexible adhesive tape B4 support the silencing frame 2, the contact area between the silencing frame 2 and the silencing chamber can be effectively reduced, so that the transmission of sound waves is reduced, and the sound-absorbing and noise-reducing performance is good.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an edge has anechoic chamber of sound absorbing structure which characterized in that: including EVA sponge board (1) and amortization frame (2), EVA sponge board (1) fixed connection is at the open end position of amortization frame (2), EVA sponge board (1) surface equidistance is provided with the ellipse circular and inhales sound hole (101) and rhombus and inhales sound hole (102), amortization frame (2) inner wall bonds and has inhales sound cotton liner A (201), inhales sound cotton liner B (202) and inhales sound cotton liner C (203), inhale sound cotton liner A (201) surface intermediate position fixed connection tapered split table (5), inhale sound cotton liner B (202) surface equidistance installation reflecting table A (8), inhale sound cotton liner C (203) surface equidistance installation reflecting table B (9), amortization frame (2) back position is through connecting seat (601) fixed connection assembly plate (6), assembly plate (6) surface bonding has two-sided adhesive tape (7).

2. An anechoic chamber having sound absorbing structure at an edge according to claim 1, wherein: and the sound absorption cotton pad B (202) and the sound absorption cotton pad C (203) are respectively positioned on the upper side and the lower side of the sound absorption cotton pad A (201), and the end face of the sound absorption cotton pad A (201) extends to the end face positions of the sound absorption cotton pad B (202) and the sound absorption cotton pad C (203).

3. An anechoic chamber having sound absorbing structure at an edge according to claim 1, wherein: the conical partition table (5) is located on one side of the EVA sponge plate (1), and the conical partition table (5) is located between the reflecting table A (8) and the reflecting table B (9).

4. An anechoic chamber having sound absorbing structure at an edge according to claim 1, wherein: oval sound insulation holes are formed in the surface of the assembling plate (6), and extend to the end face of the assembling plate (6).

5. An anechoic chamber having a sound absorbing structure at an edge according to claim 1, wherein: the upper surface of the silencing frame (2) is fixedly connected with a flexible adhesive tape A (3), the two ends of the flexible adhesive tape A (3) extend to the end face position of the silencing frame (2), and a circular through hole A is formed in the surface of the flexible adhesive tape A (3).

6. An anechoic chamber having sound absorbing structure at an edge according to claim 1, wherein: the noise reduction frame is characterized in that the back surface of the noise reduction frame (2) is fixedly connected with a flexible adhesive tape B (4), two ends of the flexible adhesive tape B (4) extend to the end surface of the noise reduction frame (2), and a circular through hole B is formed in the surface of the flexible adhesive tape B (4).