Composite material for sound-absorbing structure on inner wall of dispersion type oxygen generator and sound-absorbing structure

Abstract

The application relates to the technical field of oxygen production equipment, in particular to a composite material for a sound-absorbing structure on the inner wall of a diffusion type oxygen generator and the sound-absorbing structure. The composite material comprises: SBS first adhesive layers, IIR rubber layers, SBS second adhesive layers and ACM rubber layers which are sequentially connected in layers, and a plurality of PP hard plastic rings arranged on the end face of the ACM rubber layer; the hard plastic ring of the PP material is sleeved with a wedge-shaped PP block of the PP material, and the surface of the wedge-shaped PP block is coated with a resin nano coating. One of the two mutually parallel extension surfaces with smaller area in the wedge-shaped PP block is connected with the PP hard plastic ring. Since the composite material layer body in the application is provided with the IIR rubber layer and the ACM rubber layer, the composite material layer body has the characteristics of insulation, can resist low temperature of minus 40 degrees, and has the characteristics of acid and alkali resistance. Therefore, the application can solve the problem that the noise of the external machine is large when the existing diffusion type oxygen generator is working.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oxygen production equipment, and particularly relates to a composite material for a sound-absorbing structure on an inner wall of a diffusion-type oxygen generator and the sound-absorbing structure. BACKGROUND

[0002] The diffusion-type oxygen generator plays an important role in various situations such as working in a plateau area.

[0003] However, the existing diffusion-type oxygen generator has the problem of loud noise of the external machine when working, thus causing noise pollution to the people using the diffusion-type oxygen generator, greatly affecting the original comfortable living and working environment of people, and further affecting the physical and mental health of people. SUMMARY

[0004] The present application provides a composite material for a sound-absorbing structure on an inner wall of a diffusion-type oxygen generator and the sound-absorbing structure, which can solve the problem of loud noise of the external machine when working of the existing diffusion-type oxygen generator.

[0005] The first technical solution of the present application is a composite material for a sound-absorbing structure on an inner wall of a diffusion-type oxygen generator, comprising: SBS first adhesive layers, IIR rubber layers, SBS second adhesive layers and ACM rubber layers which are sequentially connected in turn, and a plurality of PP hard plastic rings arranged on the end face of the ACM rubber layer.

[0006] The hard plastic ring of the PP material is sleeved with a wedge-shaped PP block of the PP material, and the surface of the wedge-shaped PP block is coated with a resin nano coating.

[0007] The smaller one of the two mutually parallel extension surfaces in the wedge-shaped PP block is connected with the PP hard plastic ring.

[0008] Optionally, the setting thickness of the SBS first adhesive layer and the SBS second adhesive layer 13 is 0.15 cm.

[0009] Optionally, the setting thickness of the IIR rubber layer is 0.3 cm.

[0010] Optionally, the setting thickness of the ACM rubber layer is 0.4 cm.

[0011] Optionally, the two mutually parallel extension surfaces in the wedge-shaped PP block are both square in shape, the smaller one has a side length of 0.3 cm, the larger one has a side length of 0.6 cm, and the distance between the two extension surfaces is 1 cm.

[0012] Optionally, the setting thickness of the ACM resin nano coating is 0.1 cm.

[0013] The second technical solution of the application is a sound-absorbing structure, comprising: a bonding plate layer comprising one layer of composite material, and a parallel plate layer and a connecting plate layer each comprising two layers of composite material and formed by bonding the two layers of composite material by a SBS first adhesive layer in the two layers of composite material;

[0014] The bonding plate layer and the parallel plate layer are arranged in parallel with each other, and the parallel plate layer is uniformly provided with a plurality of square sound transmission holes;

[0015] The connecting plate layer is used for connecting the bonding plate layer and the parallel plate layer;

[0016] The plurality of connecting plate layers are connected by side edges to enclose a sound transmission cavity in communication with the sound transmission holes, and the connecting plate layer is provided with a first sound transmission hole for sound transmission.

[0017] Optionally, a sound receiving plate layer comprising two layers of composite material and formed by bonding the two layers of composite material by a SBS first adhesive layer in the two layers of composite material;

[0018] The sound receiving plate layer is arranged on a side of the parallel plate layer away from the connecting plate layer;

[0019] The plurality of sound receiving plate layers are connected by side edges to enclose an open sound receiving cavity, and the sound receiving plate layer is provided with a second sound transmission hole for sound transmission.

[0020] Optionally, the connecting plate layer is arranged in an inverted trapezoidal shape and inclined relative to the bonding plate layer;

[0021] The shorter bottom edge of the connecting plate layer is connected to the bonding plate layer and the longer top edge is connected to the parallel plate layer;

[0022] And the sound receiving plate layer is arranged in an inverted trapezoidal shape and inclined relative to the parallel plate layer;

[0023] The shorter bottom edge of the sound receiving plate layer is connected to the parallel plate layer.

[0024] Optionally, four sound receiving plate layers enclose a sound receiving cavity, and the shorter bottom edges of the four sound receiving plate layers enclose an area containing at least four sound transmission holes.

[0025] Advantages:

[0026] (1) A composite material for a sound-absorbing structure on the inner wall of a dispersion type oxygen generator:

[0027] (1) Since the composite material layer in the application is provided with an IIR rubber layer and an ACM rubber layer, and the surface of the wedge-shaped PP block is also coated with a resin nano coating, it has the characteristics of insulation and can also withstand low temperatures below -40 degrees and acid and alkali resistance.

[0028] (2) The PP block is set into a wedge shape and then combined with the composite material layer, which not only ensures the sound insulation effect, but also ensures good heat dissipation and has the advantage of free cutting size.

[0029] (3) The setting of the SBS first adhesive layer can make the composite material in the present application adhere to the inner wall of the oxygen generator machine shell, so that the composite material layer and the machine shell form an integral whole, facilitating the subsequent assembly of the outer machine.

[0030] (II) A sound insulation structure:

[0031] (4) Since the sound insulation structure in the present application is provided with a sound collecting cavity for collecting sound and a sound transmitting cavity for transmitting sound, noise can be absorbed and allowed to flow back and forth in the sound collecting cavity, the sound transmitting cavity, the space between the adjacent two sound collecting cavities and the space between the adjacent two sound transmitting cavities until it is eliminated.

[0032] In summary, the present application can solve the problem of the existing diffused oxygen generator that the noise of the outer machine is too loud when working, so that the situation that the noise of the oxygen generator outer machine affects people's physical and mental health can be successfully avoided. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 It is a structure diagram of a composite material for a sound insulation structure on the inner wall of a diffused oxygen generator in an embodiment of the present application;

[0035] Figure 2 It is a structure diagram of a sound insulation structure in an embodiment of the present application;

[0036] Figure 3 It is a top view of the parallel plate layer and the connecting plate layer in an embodiment of the present application;

[0037] Figure 4 It is a top view of the sound collecting plate layer and the parallel plate layer in an embodiment of the present application;

[0038] Figure 5 It is a partial diagram of part A in the present application; Figure 3

[0039] Figure 6 It is a partial diagram of part B in the present application; Figure 4

[0040] ​​Wherein, 1-composite material layer; 11-SBS first adhesive layer; 12-IIR rubber layer; 13-SBS second adhesive layer; 14-ACM rubber layer; 2-PP hard plastic ring; 3-wedge-shaped PP block; 4-adhesion plate layer; 5-parallel plate layer; 51-sound hole; 6-connection plate layer; 61-first sound transmission hole; 7-sound receiving plate layer; 71-second sound transmission hole. DETAILED DESCRIPTION

[0041] The embodiments will be described in detail below with reference to examples thereof as illustrated in the accompanying drawings. In the following description, same numbers refer to same or similar elements throughout the drawings. The embodiments described in the following examples do not represent all the implementations consistent with the present application. They are merely examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0042] The first technical solution of the present application is a composite material for a sound-absorbing structure on the inner wall of a dispersion type oxygen generator, as shown in Figure 1 Figure 1 The figure is a structural schematic diagram of a composite material for a sound-absorbing structure on the inner wall of a dispersion type oxygen generator in the embodiments of the present application, which comprises a composite material layer 1, a PP hard plastic ring 2 and a wedge-shaped PP block 3.

[0043] The composite material layer 1 comprises a SBS first adhesive layer 11, an IIR rubber layer 12, a SBS second adhesive layer 13 and an ACM rubber layer 14 which are sequentially connected to the inner wall.

[0044] The PP hard plastic rings 2 are arranged on the end surface of the ACM rubber layer.

[0045] In addition, the composite material further comprises a wedge-shaped PP block 3 whose surface is coated with an ACM resin nano coating. The wedge-shaped PP block 3 is connected to the PP hard plastic ring 2 through the smaller one of the two mutually parallel extension surfaces.

[0046] Specifically, first, since the composite material layer 1 in the embodiments of the present application is provided with the IIR rubber layer 12 and the ACM rubber layer 14, and the surface of the wedge-shaped PP block 3 is also coated with a resin nano coating, it has the characteristics of insulation and can also withstand low temperatures of minus 40 degrees and the characteristics of acid and alkali resistance.

[0047] Second, the PP block is arranged in a wedge shape and combined with the composite material layer 1, which not only ensures the sound-absorbing effect, but also ensures good heat dissipation and has the advantage of free cutting size.

[0048] ​Finally, the SBS first adhesive layer 11 can make the composite material layer body 1 in the application adhere to the inner wall of the oxygen generator machine shell, so that the composite material layer body 1 and the machine shell form an integral whole, facilitating the subsequent assembly of the external machine.

[0049] In some embodiments, the thickness of the SBS first adhesive layer 11 and the SBS second adhesive layer 13 is 0.15 cm. The thickness of the IIR rubber layer 12 is 0.3 cm. The thickness of the ACM rubber layer is 0.4 cm.

[0050] The two mutually parallel extension surfaces in the wedge-shaped PP block 3 are both square in shape, the smaller area extension surface has a side length of 0.3 cm, the larger area extension surface has a side length of 0.6 cm, and the distance between the two extension surfaces is 1 cm.

[0051] The thickness of the ACM resin nano coating is 0.1 cm.

[0052] Specifically, by setting the parameters of each material component in the embodiment of the application as above, the composite material in the embodiment of the application can better achieve the purpose of sound attenuation and noise reduction.

[0053] The second technical solution of the application is a sound attenuation structure, as shown in Figure 2 , Figure 2 is a structural schematic diagram of a sound attenuation structure in the embodiment of the application, the sound attenuation structure comprises: a bonding plate layer 4 comprising a layer of composite material, and parallel plate layers 5, connecting plate layers 6 and sound receiving plate layers 7 each comprising two layers of composite material and formed by bonding the two layers of composite material through SBS first adhesive layers 11.

[0054] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 , Figure 3 is a top view of the parallel plate layer and the connecting plate layer in the embodiment of the application, Figure 4 is a top view of the sound receiving plate layer and the parallel plate layer in the embodiment of the application, Figure 5 is Figure 3 a partial schematic diagram of part A, Figure 6 is Figure 4 a partial schematic diagram of part B, the bonding plate layer 4 and the parallel plate layer 5 are arranged in parallel with each other, and the parallel plate layer 5 is uniformly provided with a plurality of square sound transmission holes 51.

[0055] The connecting plate layer 6 is used to connect the bonding plate layer 4 and the parallel plate layer 5. A plurality of connecting plate layers 6 are connected by the side edges to enclose a sound transmission cavity in communication with the sound transmission holes 51, and the connecting plate layer 6 is provided with first sound transmission holes 61 for sound transmission.

[0056] The connection plate layer 6 is arranged in an inverted trapezoidal shape and is arranged obliquely relative to the fitting plate layer 4. The shorter bottom edge of the connection plate layer 6 is connected to the fitting plate layer 4 and the longer top edge is connected to the parallel plate layer 5.

[0057] The sound collecting plate layer 7 is arranged on the side of the parallel plate layer 5 away from the connection plate layer 6. The sound collecting plate layer 7 is surrounded by side edges to form an open sound collecting cavity, and the sound collecting plate layer 7 is provided with a second sound transmission hole 71 for sound transmission.

[0058] The sound collecting plate layer 7 is arranged in an inverted trapezoidal shape and is arranged obliquely relative to the parallel plate layer 5. The shorter bottom edge of the sound collecting plate layer 7 is connected to the parallel plate layer 5. Four sound collecting plate layers 7 surround a sound collecting cavity, and the shorter bottom edges of the four sound collecting plate layers 7 surround an area containing at least four sound transmission holes 51.

[0059] Working principle: After the noise enters the sound collecting cavity, it can enter the space between the fitting plate layer 4 and the parallel plate layer 5 through the sound transmission hole 51 at the bottom end of the sound collecting cavity, or it can enter the space between the adjacent two sound collecting cavities through the second sound transmission hole 71 provided on the sound collecting plate layer 7, and then enter the space between the fitting plate layer 4 and the parallel plate layer 5 through the sound transmission hole 51 at the bottom end of the adjacent two sound collecting cavities, and the noise outside the sound collecting cavity and the noise inside the sound collecting cavity can flow through the second sound transmission hole 71.

[0060] The noise enters the space between the fitting plate layer 4 and the parallel plate layer 5, part of the noise enters the sound transmission cavity, and part of the noise enters the space between the adjacent two sound transmission cavities. The noise in the sound transmission cavity and the noise in the space between the adjacent two sound transmission cavities can flow through the first sound transmission hole 61 provided on the connection plate layer 6 surrounding the sound transmission cavity.

[0061] As can be seen from the above, the noise after entering the sound collecting cavity flows back and forth in the cavity of the sound absorbing structure, continuously consumes energy until it is eliminated.

[0062] The above describes the embodiments of the present application in detail, but the content is only the preferred embodiments of the present application and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still be within the scope of the patent coverage of the present application.

Claims

1. A composite material for sound absorbing structure on the inner wall of a dispersion type oxygen generator, characterized by comprising: a porous ceramic material having a porosity of 30 to 70% and a pore diameter of 0.1 to 10 μm; and a binder. The utility model relates to a sound insulation structure of a sound insulation door, including: SBS first adhesive layer, IIR rubber layer, SBS second adhesive layer and ACM rubber layer are connected in turn, and a plurality of hard plastic rings of PP material are arranged on the end face of ACM rubber layer; the hard plastic ring of PP material is sleeved with wedge-shaped PP block of PP material, the surface of wedge-shaped PP block is coated with resin nano coating; one of the two mutually parallel extension surfaces in wedge-shaped PP block with smaller area is connected with the hard plastic ring of PP material; the setting thickness of SBS first adhesive layer and SBS second adhesive layer is 0.15cm; the setting thickness of IIR rubber layer is 0.3cm; the setting thickness of ACM rubber layer is 0.4cm; the setting shape of the two mutually parallel extension surfaces in wedge-shaped PP block is square, the setting side length of smaller extension surface is 0.3cm, the setting side length of larger extension surface is 0.6cm, and the setting distance between the two extension surfaces is 1cm; the setting thickness of resin nano coating is 0.1cm.

2. A sound absorbing structure using the composite material according to claim 1, characterized by Including: The fitting plate layer includes one layer of composite material, and the parallel plate layer and the connecting plate layer include two layers of composite material and are formed by bonding the two layers of composite material with SBS first adhesive layer; the fitting plate layer and the parallel plate layer are arranged in parallel, and the parallel plate layer is uniformly provided with a plurality of square sound holes; the connecting plate layer is used for connecting the fitting plate layer and the parallel plate layer; a plurality of connecting plate layers are connected by side edges to enclose a sound transmission cavity in communication with the sound holes, and the connecting plate layer is provided with a first sound transmission hole for sound transmission.

3. A sound attenuating structure according to claim 2, wherein, The sound insulation structure further includes: the sound receiving plate layer including two layers of composite material and formed by bonding the two layers of composite material with SBS first adhesive layer; the sound receiving plate layer is arranged on the side of the parallel plate layer away from the connecting plate layer; a plurality of sound receiving plate layers are connected by side edges to enclose an open sound receiving cavity, and the sound receiving plate layer is provided with a second sound transmission hole for sound transmission.

4. A sound attenuating structure according to claim 3, wherein The connecting plate layer is arranged in an inverted trapezoidal shape and is inclined relative to the fitting plate layer; the shorter bottom edge of the connecting plate layer is connected with the fitting plate layer, and the longer top edge is connected with the parallel plate layer; and the sound receiving plate layer is arranged in an inverted trapezoidal shape and is inclined relative to the parallel plate layer; the shorter bottom edge of the sound receiving plate layer is connected with the parallel plate layer.

5. A sound attenuating structure according to claim 4, wherein Four sound receiving plate layers enclose a sound receiving cavity, and the shorter bottom edges of the four sound receiving plate layers enclose an area containing at least four sound holes.

Images