CN215868625U - Wallpaper type plane sounder - Google Patents

Abstract

The utility model discloses a wallpaper type plane sounder which comprises an adsorption layer attached to a wall surface and a wallpaper layer exposed outside the wall, wherein a sounding layer is arranged between the adsorption layer and the wallpaper layer, and the outer surface of the adsorption layer and the inner surface of the sounding layer as well as the outer surface of the sounding layer and the inner surface of the wallpaper layer are connected and surrounded to form a cavity layer. The wallpaper type plane sounder is light in structure, simple and convenient to install, and capable of achieving a good noise control effect.

Description

Wallpaper type plane sounder

Technical Field

The utility model relates to the field of noise control, in particular to a wallpaper type plane sounder.

Background

Noise pollution is one of important pollution of modern society, the traditional noise control method is to adopt materials such as sound absorption, sound insulation, noise elimination to absorb noise or block the transmission of noise, and the noise reduction method is called as passive noise control. The control effect of the passive noise control technology is related to the noise wavelength, and only has good control effect on middle and high frequency band noise, but in the low-frequency noise control, the passive noise control technology requires that the size and the weight of used materials or equipment are large, the cost is high, and the control effect is limited.

Active noise control refers to the concept and method of purposefully artificially generating secondary acoustic signals to control the original noise. In the active noise control system, a control sound source is introduced outside an interference sound source to generate sound waves with the same amplitude and opposite phases with the interference noise, and the purpose of attenuating the noise can be achieved by utilizing the sound wave interference principle. Noise control in free sound fields and closed space sound fields is usually by active sound control, and examples of applications include transformer noise, station noise, blower noise, and noise control in airplanes, ship cabins, compartments, offices, and workshops. The original primary sound source is generally distributed, and is mostly a moving sound source, so that the practical and practical sound barrier is very long and can be more than thousands of meters, the number of required secondary sound sources is quite remarkable, a control system is inevitably very complex, and great difficulty is brought to maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a wallpaper type plane sounder which is light and handy in structure, simple and convenient to install and capable of achieving a good noise control effect.

The technical scheme of the utility model is that the wallpaper type plane sounder comprises an adsorption layer attached to a wall surface and a wallpaper layer exposed outside the wall, wherein a sounding layer is arranged between the adsorption layer and the wallpaper layer, and the outer surface of the adsorption layer and the inner surface of the sounding layer as well as the outer surface of the sounding layer and the inner surface of the wallpaper layer are connected and surround to form a cavity layer.

By adopting the wallpaper sounding device, the wall surface is respectively provided with the adsorption layer, the sounding layer and the wallpaper layer from inside to outside, the two adjacent layers are connected, the sounding layer with the structure can be greatly arranged on the area as a plane sound source, so that the number of channels of the control system (namely the number of secondary sound sources and error sensors) is greatly reduced, the control system is very simple, great convenience is brought to maintenance, and the reliability is improved. The whole structure of the wallpaper type plane sounder is a plane wallpaper capable of being bent, and the wallpaper type plane sounder is light and handy in structure and convenient to carry; when the wall paper sounding device is used, the wall paper sounding device is attached to a common passive barrier in a wall paper mode, a mixed effect is formed, the installation is simple and convenient, and the engineering cost is reduced.

Preferably, the adsorption layer comprises a rubberizing layer and a magnet layer, wherein the inner surface of the rubberizing layer is pasted on the wall surface, and the inner surface of the magnet layer is pasted with the outer surface of the rubberizing layer. Adopt above-mentioned structure, the rubberizing layer is used for pasting at the wall, contains the magnetite in the magnet layer, and the magnetite combines with the sound production layer to send the sound wave of multiple spot wave formula.

More preferably, the magnet layer includes a housing having a plurality of magnets densely distributed therein. The magnet layer is formed by the magnetite combination of the even size of polylith, can combine with the sound production device to send the sound wave of multiple spot wave formula, takes place multiple spot wave formula vibration pronunciation when plane vibrating diaphragm embedding circuit passes through audio current signal, and its skew amplitude is minimum, avoids the influence that traditional speaker piston vibration pronunciation "back emf" effect caused, and tone quality is more penetrating pure, clear fine and smooth to effectively reduce the sound diffusion, reduce the sound attenuation. Compare the monoblock magnetite, the volume of magnetite is a lot of, and the low price, and magnetism does not reduce, makes thinner magnet layer easily, uses on the wall paper.

Preferably, the surface of the wallpaper layer is penetrated with a plurality of heat dissipation holes, so that a better heat dissipation effect is realized.

Preferably, the sounding layer includes a sounding film, and a plurality of voice coils are provided on an inner surface and/or an outer surface of the sounding film. The film is characterized in that a voice coil is designed into an Archimedes spiral coil, the voice coil is made of single crystal copper, and a vibrating diaphragm is made of polyimide. The sounding film is light and thin, has good mechanical property, has the thickness of less than 1mm, can be bent at will, is not easy to damage, and has the distortion rate lower than 0.7%. The film applies the advanced semiconductor packaging technology and the flexible circuit board manufacturing process, and has good mechanical property, friction resistance and long product life.

More preferably, each voice coil is surrounded by a frame, the frame extends inwards and/or outwards along the thickness direction of the sounding film to form a hollow column, and the hollow column connects the outer surface of the adsorption layer with the inner surface of the sounding layer and connects the outer surface of the sounding layer with the inner surface of the wallpaper layer.

More preferably, the inner surface of the wallpaper layer and the outer surface of the sound-emitting film and the inner surface of the sound-emitting film and the outer surface of the absorption layer are connected through a plurality of closely arranged hollow hexagonal prisms to form a honeycomb structure, and the hollow hexagonal prisms are sleeved on the periphery of the voice coil on the sound-emitting film. The connection structure firstly surrounds the hexagonal frame outside the voice coil, then the hexagonal frame extends respectively to form the hollow hexagonal prism along the thickness direction of the sounding film, the adjacent hexagonal frames share one edge, and the adjacent hollow hexagonal prisms share one surface, so that a tightly connected honeycomb structure is formed. This kind of honeycomb structure has not only connected wall paper layer and sound generating film and adsorbed layer, and be formed with porous cavity moreover between the internal surface of wall paper layer and sound generating film's surface, and between sound generating film's internal surface and adsorbed layer's surface, the last voice coil loudspeaker voice coil vibration of sound generating film promotes the air in the cavity, because the cavity is honeycomb's regular structure, voice coil loudspeaker voice coil vibration interference is very little, so the sound wave law, stable, the tone quality that sound generating film sent is clear, no noise, the bass is more heavy and stable, the high pitch is more saturated.

Hollow post, hollow hexagonal prism all encircle by viton and form, because viton heat resistance is good, so hollow post, hollow hexagonal prism structure can not destroyed to the heat that the voice coil loudspeaker voice coil vibration produced, and the film vibration can promote the air better moreover, makes sound production device bass more steady, and the high pitch is more saturated.

More preferably, one end of the sound-emitting film is provided with a wiring port.

More preferably, a bluetooth version or an active noise controller is connected to the connection port. The sounding device is a large sounding film or is formed by connecting a plurality of sounding films in parallel, one end of the wallpaper is electrically connected with a Bluetooth plate, and the Bluetooth plate can be connected with groove wiring at the rear of the wall during decoration. If noise control is required, the controller can be arranged in front of the Bluetooth version.

Preferably, the wallpaper layer is made of carbon fiber cloth. The carbon fiber cloth has the advantages of high temperature resistance of 2500 ℃, light weight, high strength, high modulus, corrosion resistance, fatigue resistance obviously higher than that of steel and aluminum, and the wallpaper made of the carbon fiber cloth also has the advantages. The wallpaper is easy to burn out due to the fact that the loudspeaker generates heat after working for a long time, and the wallpaper made of the carbon fiber cloth is heat-resistant and prevented from burning out; and carbon cloth compresses wall paper thickness like this and can be frivolous as far as possible, realizes crooked effect with sound production film mutually supporting. The high strength can make the wall paper be difficult for tearing, and corrosion resistance can make the wall paper resist the adverse circumstances that the acid and alkaline nature is strong, and fatigue resistance can increase life, increase of service life.

Preferably, the surfaces of the adsorption layer, the wallpaper layer and the sound production layer are provided with a plurality of groups of corresponding through holes, so that the self-tapping screws sequentially penetrate through the through holes, and the wallpaper type plane sounder is fixed on the wall surface. By adopting the fixing mode, the wallpaper type plane sounder is more firmly fixed on the wall surface and is more convenient to install.

Drawings

Fig. 1 is a front view of the wallpaper flat sounder of the utility model.

Fig. 2 is a schematic enlarged partial top view of the wallpaper flat sounder of the utility model.

Fig. 3 is a schematic view of a sound-emitting layer.

Fig. 4 is a perspective view of the sound-emitting layer and the hollow column.

Fig. 5 is a schematic perspective view of a connection structure of the sounding layer, the absorption layer and the wallpaper layer.

Fig. 6 is a harmonic distortion test chart of the present invention.

Fig. 7 is a graph of the frequency response of the present invention.

As shown in the figure:

wherein, 1, wall paper layer, 2, sound production film, 3, magnet layer, 4, wiring port, 5, hollow post, 6, cavity layer, 7, louvre, 8, voice coil loudspeaker voice coil, 9, frame, 10, through-hole, 11, rubberizing layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

It should be noted that, in the description of the present invention, it should be understood that the main and sub terms, such as "upper", "lower", "front", "rear", "left", "right", "top", "side", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The detachable connection means a conventional detachable connection manner such as a screw connection, a snap connection, a rivet connection, a magnetic suction type connection, and the like.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the utility model. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

The utility model is described in detail below with reference to the figures and the specific embodiments.

Example 1

As shown in fig. 1 to 5, a wallpaper type planar sounder comprises an adsorption layer attached to a wall surface and a wallpaper layer 1 exposed outside the wall, wherein a sounding layer is arranged between the adsorption layer and the wallpaper layer 1, and the outer surface of the adsorption layer and the inner surface of the sounding layer as well as the outer surface of the sounding layer and the inner surface of the wallpaper layer 1 are connected and surround to form a cavity layer 6.

The adsorption layer comprises an adhesive layer 11 and a magnet layer 3, wherein the inner surface of the adhesive layer 11 is adhered to the wall surface, and the inner surface of the magnet layer 3 is adhered to the outer surface of the adhesive layer 11.

The magnet layer 3 comprises a shell, and a plurality of magnets are densely distributed in the shell.

A plurality of heat dissipation holes 7 penetrate through the surface of the wallpaper layer 1.

The sounding layer comprises a sounding film 2, and a plurality of voice coils 8 are arranged on the inner surface and/or the outer surface of the sounding film 2.

Every voice coil 8 surrounds a frame 9 outward, and frame 9 forms hollow post 5 along the thickness direction of sound production film 2 inside and/or outside extension, and hollow post 5 connects the surface of adsorbed layer and the internal surface of sound production layer and the internal surface of wall paper layer 1.

The inner surface of the wallpaper layer 1 and the outer surface of the sounding film 2 as well as the inner surface of the sounding film 2 and the outer surface of the adsorption layer are connected through a plurality of hollow hexagonal prisms which are closely arranged, a honeycomb structure is formed, and the hollow hexagonal prisms are sleeved on the periphery of the voice coil 8 on the sounding film 2.

One end of the sounding film 2 is provided with a wiring port 4.

The wiring port 4 is connected with a Bluetooth version or an active noise controller.

The surfaces of the adsorption layer, the wallpaper layer 1 and the sound production layer are provided with a plurality of groups of corresponding through holes 10, so that the self-tapping screws sequentially penetrate through the through holes 10, and the wallpaper type plane sounder is fixed on the wall surface.

Specifically, the thickness of the adsorption layer is 1mm, the thickness of the magnet layer is 7mm, the thickness of the wallpaper layer is 1mm, and the thickness of the cavity layer is 0.3 mm. The specific thickness of each layer is the optimal size of the practical wall paper for the wall surface, and has a certain proportion according to the materials, but the thickness of each layer is not limited to the size and the proportion in the actual preparation process.

The distortion rate which can be seen by the harmonic test of fig. 6 is lower than 1%, which shows that the sound quality of the emitted sound is clear and has no noise, thereby proving that the structural design of the wallpaper type plane sounder of the utility model causes the vibration interference of the voice coil to be very small, and the sound wave is regular and stable.

The frequency response test of FIG. 7 shows that the sensitivity of the frequency in the range of 20-2000 Hz meets the standard.

During installation, grooves are formed in the back of wallpaper for wiring, the wallpaper is placed and positioned, and wire ends are reserved. During wiring, the sound line is 30cm away from the electric wire, the electric wire belongs to strong current, weak current and strong current are interfered together to easily generate noise current sound, after finishing decoration of the outer wall, the position of the wallpaper is positioned, holes are formed in the wall surface, the wallpaper with the proper size is directly pasted on the outer wall, and the sounding device of each wallpaper is provided with 8 holes.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The wallpaper type plane sounder is characterized by comprising an adsorption layer attached to a wall surface and a wallpaper layer exposed outside the wall, wherein a sounding layer is arranged between the adsorption layer and the wallpaper layer, and the outer surface of the adsorption layer and the inner surface of the sounding layer as well as the outer surface of the sounding layer and the inner surface of the wallpaper layer are connected and surround to form a cavity layer.

2. The wallpaper type flat sounder according to claim 1, wherein the adsorption layer comprises a rubberized layer and a magnet layer, wherein the inner surface of the rubberized layer is adhered to the wall surface, and the inner surface of the magnet layer is adhered to the outer surface of the rubberized layer.

3. The wallpaper type flat surface sounder according to claim 2, wherein the magnet layer comprises a housing, and a plurality of magnets are densely distributed in the housing.

4. The wallpaper type flat sound generator as claimed in claim 1, wherein a plurality of heat dissipation holes are formed through the surface of the wallpaper layer.

5. The wallpaper type plane sounder according to claim 1, wherein the sounding layer comprises a sounding membrane, and a plurality of voice coils are arranged on the inner surface and/or the outer surface of the sounding membrane.

6. The wallpaper type flat sounder according to claim 5, wherein each voice coil is surrounded by a frame, the frame extends inwards and/or outwards along the thickness direction of the sounding film to form a hollow column, and the hollow column connects the outer surface of the adsorption layer and the inner surface of the sounding layer, and the outer surface of the sounding layer and the inner surface of the wallpaper layer.

7. The wallpaper type plane sounder according to claim 5, wherein the inner surface of the wallpaper layer and the outer surface of the sounding film and the inner surface of the sounding film and the outer surface of the absorption layer are connected through a plurality of closely arranged hollow hexagonal prisms to form a honeycomb structure, and the hollow hexagonal prisms are sleeved on the periphery of the voice coil on the sounding film.

8. The wallpaper type plane sounder according to claim 5, wherein one end of the sounding membrane is provided with a wiring port.

9. The wallpaper type plane sounder according to claim 8, wherein a Bluetooth plate or an active noise controller is connected to the wiring port.

10. The wallpaper type flat sounder according to claim 1, wherein the surfaces of the absorption layer, the wallpaper layer and the sounding layer are provided with a plurality of sets of corresponding through holes, so that self-tapping screws sequentially penetrate through the through holes and fix the wallpaper type flat sounder on the wall surface.

Images