Sound equipment

Abstract

The utility model relates to a sound box, which comprises a fixed seat, a loudspeaker is arranged on the fixed seat, a sounding surface of the loudspeaker faces the outer side, a refraction part is arranged on the outer side of the sounding surface of the loudspeaker and comprises a diffusion cone, and the diffusion cone and the sounding surface of the loudspeaker are concentric and are arranged at an interval. The cone top of the diffusion cone is arranged close to the center of the sounding surface of the loudspeaker, the propagation path is deflected due to the change of the thickness of the medium and the curved surface, the propagation direction and the diffusion path of sound can be effectively changed, and the design of the diffusion cone can more uniformly diffuse original relatively concentrated sound waves emitted by the loudspeaker to the periphery, so that the sound quality is improved. The distribution of the sound in the space is more balanced, the effective listening range of the sound equipment is expanded, and the layout mode that the cone top of the diffusion cone is close to the center of the sounding surface of the loudspeaker can accurately guide and refract high-frequency sound waves, so that high-frequency signals are transmitted to a target area in a more concentrated manner, and the sound quality is improved. And the energy loss and scattering interference of the high-frequency signal in the propagation process are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sound equipment, especially a sound equipment. BACKGROUND

[0002] At present, the traditional single-horn sound equipment still mainly relies on the closed or simple inverse phase type box structure. The closed box can stabilize the low-frequency signal to a certain extent and suppress part of the distortion, but inevitably absorbs a large amount of low-frequency energy, resulting in the attenuation of the low-frequency response, so that the performance of the low-frequency elements in the music is greatly discounted. If the box volume, inverse phase pipe size and sound unit parameters are not accurately matched in the common inverse phase type box design, resonance will be easily caused at a specific frequency, resulting in muddy sound, which seriously damages the clarity and purity of the sound quality. In addition, the traditional single-horn sound equipment adopts single directivity or small-angle diffusion design in the layout of the sound unit. This design concept can still meet the basic requirements in the early application scene with fixed listening position as the core. However, with the diversification and complication of modern living space, the demand of users for the single-horn sound equipment to achieve good sound quality at different spatial positions is increasing. The single-horn sound equipment under the traditional layout has serious defects in the uniformity of sound radiation. The sound propagation has strong directivity. Once the placement direction deviates from the optimal position, the frequency response of the sound will change significantly, the sound image positioning will be chaotic, and it is difficult to create a stable and uniform sound field environment in the space. SUMMARY

[0003] The utility model aims at: provide a kind of sound equipment, it aims at solving the problem of the above-mentioned technical problem in single-horn sound equipment sound field not uniform and the problem of dependence on placement direction, so that the sound field of sound equipment is more uniform, improve the radiation surface and hearing of sound equipment.

[0004] The technical problems in the utility model are solved by the following technical solutions:

[0005] A kind of sound equipment, comprising:

[0006] Fixed seat;

[0007] Horn, the horn is installed on the fixed seat and the sound emitting surface is towards the outside;

[0008] Refractive part, the refractive part is arranged outside the sound emitting surface of the horn;

[0009] The refractive part includes a diffusion cone, the diffusion cone is concentric with the sound emitting surface of the horn and is arranged with interval, and the top of the diffusion cone is arranged close to the center of the sound emitting surface of the horn.

[0010] The utility model also has the following technical features:

[0011] In an embodiment of the utility model, the generatrix of the diffusion cone extends from the cone top to the cone bottom in an arc curve shape, and the tangent direction of the generatrix extending line to the cone bottom is parallel to the sound emitting surface of the loudspeaker.

[0012] In an embodiment of the utility model, the included angle between the tangent line of the generatrix of the diffusion cone extending from the cone top to the cone bottom and the sound emitting surface of the loudspeaker gradually decreases.

[0013] In an embodiment of the utility model, the included angle between the tangent line of the generatrix of the diffusion cone extending from the cone top to the cone bottom and the sound emitting surface of the loudspeaker is 45°

[0014] In an embodiment of the utility model, the diffusion cone is in a shell shape.

[0015] In an embodiment of the utility model, the cone bottom of the diffusion cone extends to the cone top in a sound transmission cover shell, and the sound transmission cover shell is arranged outside the fixed seat.

[0016] In an embodiment of the utility model, the outer wall of the sound transmission cover shell is arrayed with holes, and the distance of the holes along the extension direction of the sound transmission cover shell is greater than the height of the diffusion cone.

[0017] In an embodiment of the utility model, the fixed seat is in a cylindrical shell shape structure, the loudspeaker is arranged at the top end of the fixed seat, the side wall of the fixed seat is provided with a diaphragm, the diaphragm is arranged close to the loudspeaker and the diaphragm surface is perpendicular to the sound emitting surface of the loudspeaker.

[0018] In an embodiment of the utility model, the outer wall of the fixed seat is provided with a step, the cavity of the sound transmission cover shell is provided with a mounting column, the end surface of the sound transmission cover shell is abutted on the step, the mounting column is aligned with the mounting screw hole on the fixed seat and is fixed through bolts.

[0019] In an embodiment of the utility model, the outer wall of the sound transmission cover shell is covered with a cloth.

[0020] Compared with the prior art, the utility model has the beneficial effects of: setting the refraction part outside the sound emitting surface of the loudspeaker, and the diffusion cone in the refraction part is concentric with the sound emitting surface of the loudspeaker and is arranged at intervals, the propagation path is deflected due to the change of medium thickness and curved surface, the propagation direction and diffusion path of sound can be effectively changed.

[0021] The layout of the cone top of the diffusion cone close to the center of the loudspeaker sound emitting surface has an important influence on the high frequency part of the sound. In the propagation process of the high frequency sound wave, the high frequency sound wave is easily disturbed to produce scattering and attenuation, resulting in unclear sound quality. The diffusion cone can accurately guide and refract the high frequency sound wave, so that the high frequency signal is more concentratedly propagated to the target area, reduces the energy loss and scattering interference of the high frequency signal in the propagation process, and improves the clarity and delicacy of the high frequency sound quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the sound in one embodiment of the utility model;

[0023] Figure 2 It is a structure schematic view of the sound after moving out the upper end cap body in one embodiment of the utility model;

[0024] Figure 3 It is a structure schematic view of the sound after moving out the upper end cap body and cloth in one embodiment of the utility model;

[0025] Figure 4 It is a structure schematic view of the sound after moving out the upper end cap body, cloth and refractive part in one embodiment of the utility model;

[0026] Figure 5 And Figure 6 It is two kinds of perspective structure schematic views of the refractive part in one embodiment of the utility model;

[0027] Figure 7 And Figure 8 It is two kinds of perspective structure schematic views of the fixed seat in one embodiment of the utility model;

[0028] Figure 9 It is a cross section structure schematic view of the refractive part in one embodiment of the utility model.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 10, fixed seat; 11, diaphragm; 12, step;

[0031] 20, loudspeaker;

[0032] 30, refractive part; 31, diffusion cone; 311, generatrix; 32, sound transmission shell; 321, hole; 322, mounting column; 33, cloth. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and functions of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application.

[0034] The drawings provided in the embodiments only schematically illustrate the basic concept of the present application, and thus the drawings only show the components related to the present application, not the number, shape and size of the components in actual implementation. The shape, number and ratio of the components in actual implementation can be randomly changed, and the layout of the components can be more complex.

[0035] The traditional single-horn sound equipment adopts single directivity or small-angle diffusion design in the layout of the sound unit. The single-horn sound equipment under the traditional layout has serious defects in the uniformity of sound radiation. The sound propagation has strong directivity. Once the placement direction deviates from the optimal position, the frequency response of the sound will change significantly, the sound image positioning is chaotic, and it is difficult to create a stable and uniform sound field environment in the space. To solve the problem, a sound equipment is provided, which comprises a fixing seat 10, a horn 20 installed on the fixing seat 10 and having a sound emitting surface facing outward, and a refraction part 30 arranged outside the sound emitting surface of the horn 20. The refraction part 30 comprises a diffusion cone 31 which is concentric with the sound emitting surface of the horn 20 and is arranged in a spaced manner, and the top of the diffusion cone 31 is arranged close to the center of the sound emitting surface of the horn 20.

[0036] In an embodiment, referring to Figure 5 , Figure 6 and Figure 9 , the diffusion cone 31 can be made of plastic. The diffusion cone 31 requires to be as smooth as possible without burrs. After being formed by a forming device, the outer wall of the diffusion cone 31 can be processed to improve the smoothness of the entire outer wall of the diffusion cone 31.

[0037] In an embodiment, referring to Figure 9 , a reflective coating can be coated on the outer wall of the diffusion cone 31 to make the outer wall of the diffusion cone 31 smoother.

[0038] In an embodiment, the coating can be a metal oxide coating, such as a titanium dioxide (TiO2) coating, which has high hardness and good optical properties, and has a positive effect on sound reflection in the acoustic field. When sound waves propagate to the surface of the titanium dioxide coating, due to the microstructure characteristics of the coating, the sound waves can be efficiently reflected, especially for high-frequency sound waves, which can be accurately reflected in the intended direction, reducing the loss of high-frequency sound due to scattering during propagation. At the same time, the metal oxide coating has stable chemical properties and can maintain good sound reflection performance for a long time, and will not easily deteriorate due to environmental factors, ensuring that the sound can continue to produce excellent sound reflection effect in different use environments.

[0039] It can also be a nanocomposite coating, such as a composite coating made of nanometer calcium carbonate, nanometer silicon dioxide, etc. The advantages of these nanometer particles are obvious. The size of these nanometer particles is extremely small, and they can form a dense and uniform microstructure in the coating. On the one hand, the nanocomposite coating can significantly increase the reflection interface of sound, so that the sound waves are reflected multiple times in the coating, enhancing the sound reflection efficiency; on the other hand, for low-frequency sound waves, the nanocomposite coating can use its special microstructure to reflect and converge low-frequency energy, which is superimposed with the low-frequency sound waves emitted by the loudspeaker, improving the intensity and fullness of the low-frequency sound. Moreover, the high specific surface area of nanometer materials minimizes the adsorption and scattering of sound, further ensuring the clarity of sound propagation.

[0040] In an embodiment, referring to Figure 9 , the generatrix 311 of the diffusion cone 31 extends in a circular arc curve shape from the top of the cone to the bottom of the cone, and the tangent direction of the line extending from the generatrix 311 to the bottom of the cone is parallel to the sound emitting surface of the loudspeaker 20.

[0041] In this embodiment, the special circular arc curve-shaped generatrix can make the sound waves emitted by the loudspeaker 20 be more smoothly and continuously guided when they contact the surface of the diffusion cone 31. Sound waves of different frequencies will be reflected and refracted at a specific angle according to the curve shape of the generatrix, thereby forming a more uniform and dead-angle-free sound diffusion effect in space. This means that the audience can receive a relatively balanced sound intensity regardless of their position around the sound, effectively expanding the optimal listening area of the sound and improving the adaptability of the sound in different space layouts.

[0042] Specifically, in the high frequency band, the circular arc curve-shaped generatrix 311 can finely control the reflection and refraction of high frequency sound waves. The high frequency sound wave energy is relatively concentrated and the propagation direction is relatively single. The special shape of the generatrix 311 can uniformly scatter the high frequency sound wave to the surrounding area, avoid the high frequency sound from being excessively concentrated in a local area to produce a harsh feeling, and at the same time enhance the perceptibility of high frequency details in the entire space, so that the listener can more clearly capture high frequency information such as the overtone of stringed instruments and the crisp sound of percussion instruments, thereby improving the clarity and delicacy of high frequency sound quality. For the low frequency band, the characteristic that the tangent direction of the line extending from the tip of the cone to the bottom of the cone is parallel to the sound emitting surface of the loudspeaker 20 helps to guide the low frequency sound wave to propagate along a specific direction, reducing interference and cancellation of the low frequency sound wave during propagation. Under the action of the diffusion cone 31, the low frequency sound wave can be more effectively converged and enhanced, so that the bass part such as the bass drum point and the low frequency note of the pipe organ has more power and fullness, enriching the overall level of the music. In the medium frequency band, the special generatrix design allows the medium frequency sound wave to diffuse smoothly, ensuring the clear restoration of the voice and the sound of various medium frequency instruments, avoiding distortion and blur of the medium frequency tone, and making the medium frequency performance of the music more natural and lively.

[0043] In a specific embodiment, referring to Figure 9 , the included angle between the tangent of the line extending from the tip of the cone to the bottom of the cone and the sound emitting surface of the loudspeaker 20 gradually decreases.

[0044] In this embodiment, this unique design can accurately control the diffusion angle of sound. When the sound wave emitted by the loudspeaker 20 contacts the diffusion cone 31, near the tip of the cone, due to the relatively large included angle between the tangent and the sound emitting surface, the sound wave will be initially reflected and scattered at a large angle, so that the sound can rapidly diffuse to a wide range of space in the initial stage, effectively avoiding excessive concentration of sound near the tip of the cone. As the generatrix extends to the bottom of the cone, the included angle between the tangent and the sound emitting surface gradually decreases, and the reflection and scattering angle of the sound wave also gradually decreases, which allows the sound to be more concentratedly propagated to a specific direction away from the tip of the cone. In this way, the sound can be finely controlled in different distances and angles, ensuring uniform distribution of sound in the entire space, so that the listener can obtain balanced sound intensity whether listening at close range or in a large space, greatly optimizing the sound diffusion effect of the sound and improving its adaptability in complex space environments.

[0045] More preferably, the included angle between the tangent of the line extending from the tip of the cone and the sound emitting surface of the loudspeaker 20 is 45°.

[0046] Referring to Figure 9In the embodiment, the generatrix 311 of the diffusion cone 31 extends from the vertex to the base of the cone, and the included angle between the tangent line of the extension line and the sound emitting surface of the horn 20 changes from 45°, 30°, 25°, 7° to 0°. The angle change is preferably a smooth angle change to ensure the refraction effect on the sound, and the sound wave is deflected by 30° vertically, that is, the overall sound effect is ensured.

[0047] In an embodiment, the diffusion cone 31 is in the shape of a shell, and the thickness of the diffusion cone 31 can be 2-3 cm, preferably 2 cm. The inner cavity of the diffusion cone 31 also has a cone cavity, which is formed by injection molding so that the inner wall of the diffusion cone 31 has no cavity, and the refraction effect on the sound is ensured.

[0048] In an embodiment, to realize the installation of the diffusion cone 31 and the fixed seat 10, the base of the diffusion cone 31 extends to the vertex of the cone in the direction of the sound transmission shell 32, and the sound transmission shell 32 is arranged outside the fixed seat 10.

[0049] In an embodiment, referring to Figure 3 , Figure 5 and Figure 6 , to realize uniform diffusion of sound, the outer wall of the sound transmission shell 32 is arrayed with holes 321, and the distance along the extension direction of the sound transmission shell 32 is greater than the height of the diffusion cone 31.

[0050] In an embodiment, referring to Figure 3 , the holes 321 can be round holes or polygonal holes, and are arrayed along the length direction of the outer wall of the sound transmission shell 32. The holes 321 can effectively cover the diffusion area of the diffusion cone 31, so that the sound diffusion of the diffusion cone 31 is more uniform.

[0051] In an embodiment, to strengthen the bass effect of the horn 20, the fixed seat 10 is in the shape of a cylindrical shell, the horn 20 is arranged at the top end of the fixed seat 10, the side wall of the fixed seat 10 is provided with a diaphragm 11, and the diaphragm 11 is arranged close to the horn 20 and the diaphragm surface is perpendicular to the sound emitting surface of the horn 20.

[0052] In an embodiment, the diaphragm 11 is in the shape of a rectangle, is fixed in the opening of the outer wall of the fixed seat 10 by bolts, and is arranged close to the horn 20.

[0053] In an embodiment, the horn 20 is fixed at the opening position of the top of the fixed seat 10 by bolts.

[0054] In an embodiment, referring to Figure 7The outer wall of the fixing base 10 is provided with a step 12, and the cavity of the sound transmission cover 32 is provided with a mounting column 322. The end surface of the sound transmission cover 32 abuts against the step 12, and the mounting column 322 is aligned with the mounting screw hole on the fixing base 10 and is fixed by a bolt. Figure 6 and Figure 8 The mounting column 322 is aligned with the mounting screw hole on the fixing base 10 and is fixed by a bolt.

[0055] In an embodiment, referring to Figure 6 The mounting column 322 is located in the cavity of the sound transmission cover 32 and is provided with four groups. The fixing base 10 is provided with a clamping notch on the outer wall, and the mounting screw hole is arranged at the bottom of the clamping notch. After the sound transmission cover 32 is covered on the fixing base 10, the mounting column 322 is clamped into the clamping notch, and the fixing base 10 and the sound transmission cover 32 are fixedly connected by screwing the bolt into the fixing base 10.

[0056] In an embodiment, the sound transmission cover 32 can be wrapped with a cloth 33. The cloth 33 should not be too thick to avoid affecting the sound transmission.

[0057] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0058] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sound device, characterized by comprising: The utility model relates to a loudspeaker, which comprises: a fixed seat (10); a loudspeaker (20) mounted on the fixed seat (10) and having a sound emitting surface facing outward; a refraction part (30) arranged outside the sound emitting surface of the loudspeaker (20); the refraction part (30) comprises a diffusion cone (31) concentrically and spacedly arranged with the sound emitting surface of the loudspeaker (20), and the apex of the diffusion cone (31) is arranged close to the center of the sound emitting surface of the loudspeaker (20).

2. The sound of claim 1, wherein: The generatrix (311) of the diffusion cone (31) extends in an arc curve shape from the apex to the bottom of the cone, and the tangent direction of the extension line of the generatrix (311) to the bottom of the cone is parallel to the sound emitting surface of the loudspeaker (20).

3. The sound of claim 2, wherein: The included angle between the tangent of the extension line of the generatrix (311) of the diffusion cone (31) from the apex to the bottom of the cone and the sound emitting surface of the loudspeaker (20) gradually decreases.

4. The sound of claim 3, wherein: The included angle between the tangent of the extension line of the generatrix (311) of the diffusion cone (31) from the apex to the bottom of the cone and the sound emitting surface of the loudspeaker (20) is 45°.

5. The soundbar of claim 2, wherein: The diffusion cone (31) is in the shape of a shell.

6. The sound of claim 5, wherein: The bottom of the diffusion cone (31) extends to the apex in the form of a sound transmission shell (32), and the sound transmission shell (32) is arranged outside the fixed seat (10).

7. The sound of claim 6, wherein: The outer wall of the sound transmission shell (32) is arrayed with holes (321), and the distance along the extension direction of the sound transmission shell (32) is greater than the height of the diffusion cone (31).

8. The soundbar of claim 6, wherein: The fixed seat (10) is in the form of a cylindrical shell, the loudspeaker (20) is mounted at the top end of the fixed seat (10), the side wall of the fixed seat (10) is provided with a diaphragm (11), the diaphragm (11) is arranged close to the loudspeaker (20) and the membrane surface is perpendicular to the sound emitting surface of the loudspeaker (20).

9. The sound of claim 8, wherein: The outer wall of the fixed seat (10) is provided with a step (12), the cavity of the sound transmission shell (32) is provided with a mounting column (322), the end surface of the sound transmission shell (32) abuts against the step (12), the mounting column (322) is aligned with the mounting screw hole on the fixed seat (10) and is fixed by bolts.

10. The soundbar of claim 7, wherein: The outer wall of the sound transmission shell (32) is covered with a cloth (33).

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