CN216391385U

CN216391385U - Variable directivity horn based on wavefront segmentation technology

Info

Publication number: CN216391385U
Application number: CN202121935190.8U
Authority: CN
Inventors: 王庆华
Original assignee: Nanjing Ruichu Information Technology Co ltd
Current assignee: Nanjing Ruichu Information Technology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-04-26
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a variable directivity horn based on a wave front segmentation technology, which comprises a horn main body in a circular truncated cone structure, wherein a short diameter end of the horn main body is connected with a sounding box, a mounting disc is connected to the outside of a long diameter end of the horn main body, and a horn opening with two through ends is formed in the middle of the horn main body. According to the utility model, the interference of the first interference opening and the second interference opening on the sound wave is utilized, so that the sound wave generates two sound wave interference effects when being transmitted in the bugle main body, the energy distribution during the sound wave transmission is uniform, the multi-directional transmission is carried out in the direction, the intensity of the sound wave transmitted by the bugle main body is strong, and the sound wave has a stereo sound effect.

Description

Variable directivity horn based on wavefront segmentation technology

Technical Field

The utility model relates to the technical field of loudspeakers, in particular to a variable directional horn based on a wavefront segmentation technology.

Background

The horn loudspeaker is originated from a sound recorder, most of the existing line arrays are formed in a mode of simulating a line sound source by a multipoint sound source, more points are closer to a line, and the maximum distance between the points cannot exceed half wavelength, so that a waveguide mode is adopted in a frequency band with higher frequency; because the linear array is required to control the sensitivity and the directivity, a horn is matched at the outlet of the waveguide, which is commonly used on a loudspeaker at present to increase the vibration transmission of sound, but when the sound wave is transmitted, only one specified direction can be transmitted, so that when the transmitted sound wave touches the boundary wall of the external environment, the sound wave is consumed, the transmission of the sound wave is weakened, the sound effect is influenced, meanwhile, the transmission of the sound wave has a bias due to the homodromous transmission, and the sound has no stereoscopic sound effect after being transmitted.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a variable directional horn based on wavefront division technology to solve the above problems.

To achieve the above object, the present invention provides the following solutions:

the utility model provides a but variable directive property bugle based on wave front segmentation technique, is including the bugle main part that is round platform type structure, the minor diameter end of bugle main part is connected with the sound production casket, the major diameter end external connection of bugle main part has the mounting disc, the bugle opening that both ends link up is seted up to the intermediate position department of bugle main part, install the partial tone board of adaptation in the bugle opening, the embedded apron of installing the adaptation of one end that the sound production casket was kept away from to the bugle opening.

As a further improvement of the technical scheme, a plurality of partial tone single plates which are uniformly arranged in a linear array are arranged in the partial tone plate, two adjacent first interference openings are formed in the middle of each partial tone single plate, and the partial tone single plates and the cover plate are both adapted to the horn openings.

As a further improvement of the technical scheme, through veneer openings are formed in the positions of the cover plate corresponding to the partial tone veneers, and two adjacent second interference openings are formed in the positions corresponding to the upper end and the lower end between two adjacent partial tone veneers.

As a further improvement of the technical scheme, a front box block is arranged at one end, close to the horn main body, of the sounding box, a vibrating membrane is arranged at one end, far away from the horn main body, of the front box block, one end, close to the front box block, of the vibrating membrane is of a hemispherical structure, and a rear box block is arranged at one end, far away from the front box block, of the vibrating membrane.

As a further improvement of the technical scheme, a through horn mounting hole is formed in the middle of the front box block, a through outer sound mounting opening is formed in the middle of the rear box block, and the horn main body is mounted in the horn mounting hole.

As a further improvement of the technical scheme, four corners of one end of the front box block close to the rear box block are provided with inward concave insertion openings, one end of the rear box block close to the front box block is provided with convex insertion convex columns corresponding to the insertion openings, the insertion convex columns are in insertion fit with the insertion openings, and the front box block is in insertion fit with the rear box block.

As a further improvement of the technical scheme, the installation disc is provided with a plurality of through installation openings which are uniformly distributed in a circular array, and the installation openings are internally provided with the connecting mechanisms in a penetrating way.

As a further improvement of this technical scheme, coupling mechanism's intermediate position department is provided with connecting bolt, connecting bolt's one end is connected with the bolt nut that is regular hexagon structure, connecting bolt keeps away from the one end of bolt nut and is provided with the connecting nut that is regular hexagon structure, the nut opening that link up is seted up to connecting nut's intermediate position department, connecting bolt's outer wall is provided with the external screw thread, the internal thread has been seted up to nut open-ended inner wall, connecting bolt and connecting nut rotating cooperation.

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

interfere the interference of opening to the sound wave through first interference opening and second, make the sound wave produce twice sound wave interference effect when the transmission in the bugle main part, energy distribution when making the sound wave transmission is even and the direction carries out multidirectional transmission, make the sound wave intensity that passes through the transmission of bugle main part strong and have the stereophonic, compare in current bugle speaker, intensity when can effectively strengthen the sound transmission, the definition that the guarantee was drawed, the interference that interference caused simultaneously many times can change the direction of sound wave transmission, make the sound wave have the stereophonic effect when the transmission, obtain better listening when being convenient for draw and feel.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a variable directional horn based on a wavefront segmentation technique;

FIG. 2 is a schematic diagram of a split structure of a variable directivity horn based on a wavefront segmentation technique;

FIG. 3 is a schematic diagram of a split structure of a variable directivity horn main body based on a wavefront segmentation technique;

FIG. 4 is a schematic diagram of a split structure of a variable directivity horn sounding box based on a wavefront division technique;

FIG. 5 is a schematic diagram of an inverted structure of a variable directivity horn front box block based on wavefront division;

FIG. 6 is a schematic diagram of a split structure of a variable directivity horn connection mechanism based on a wavefront division technique;

in the figure: 1. a horn main body; 2. a sounding box; 3. mounting a disc; 4. a horn opening; 5. a sound separating plate; 6. A cover plate; 7. a partial single board; 8. a first interference opening; 9. opening the single plate; 10. a second interference opening; 11. a front box block; 12. a vibrating membrane; 13. a rear box block; 14. a horn mounting hole; 15. an outer sound mounting opening; 16. inserting the convex column; 17. an insertion opening; 18. an installation opening; 19. a connecting mechanism; 20. a connecting bolt; 21. a connecting nut; 22. a nut opening; 23. bolt and nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Example 1

Referring to fig. 1 to 6, in an embodiment of the present invention, a variable directivity horn based on a wavefront segmentation technology includes a horn main body 1 having a circular truncated cone structure, a sounding box 2 is connected to a short diameter end of the horn main body 1, a mounting plate 3 is connected to an outside of a long diameter end of the horn main body 1, a horn opening 4 having two through ends is formed in a middle position of the horn main body 1, an adaptive sound splitting plate 5 is installed in the horn opening 4, an adaptive cover plate 6 is installed in an embedded manner at an end of the horn opening 4 away from the sounding box 2, the horn opening 4 facilitates expanding and transmitting sound waves received by the sounding box 2, the sound splitting plate 5 can interfere one sound wave into sound waves by two strands of the transmitted sound waves through interference of the sound waves, multiple interference is performed in the sound splitting plate 5 in the horn opening 4, energy of each segment of the sound waves is the same, and intensity distribution of the sound waves is uniform and convenient to listen, meanwhile, the sound waves are interfered again when passing through the cover plate 6, so that the direction of the waves is changed, and because the sound waves generate a plurality of waves after the first interference, the multi-wave generates multi-directional transmission when the waves are interfered at the cover plate 6 and the waves are transmitted, the sound transmitted by the horn main body 1 has a three-dimensional effect.

Preferably, a plurality of partial sound single plates 7 which are uniformly arranged in a linear array are arranged in the partial sound plate 5, two adjacent first interference openings 8 are formed in the middle position of each partial sound single plate 7, the partial sound single plates 7 and the cover plate 6 are both suitable for the horn opening 4, the plurality of partial sound single plates 7 are convenient for dividing sound waves into a plurality of sound waves, the plurality of sound waves generate wave interference when passing through the first interference openings 8, the plurality of sound waves are further increased, and when continuously propagating in the horn opening 4, each section of sound has the same energy, so that the intensity distribution during sound wave transmission is uniform and convenient for listening.

Preferably, the cover plate 6 is provided with through single plate openings 9 at positions corresponding to the partial sound single plates 7, two adjacent second interference openings 10 are provided at upper and lower ends corresponding to the positions between the two adjacent partial sound single plates 7, multiple waves interfere with each other once again when entering the second interference openings 10, and the multiple waves are changed in direction when interfering, so that the multiple waves generate a multidirectional propagation phenomenon, and then the sound propagation has a stereoscopic effect.

Preferably, one end of the sounding box 2 close to the horn body 1 is provided with a front box block 11, one end of the front box block 11 far away from the horn body 1 is provided with a vibrating membrane 12, one end of the vibrating membrane 12 close to the front box block 11 is of a hemispherical structure, one end of the vibrating membrane 12 far away from the front box block 11 is provided with a rear box block 13, the front box block 11 and the rear box block 13 are convenient for clamping the vibrating membrane 12 in the middle, and the sound transmitted through the vibration of the vibrating membrane 12 enters the horn opening 4 to be amplified and transmitted.

Preferably, a through-going horn mounting hole 14 is formed at a middle position of the front box block 11, a through-going external sound mounting opening 15 is formed at a middle position of the rear box block 13, the horn main body 1 is mounted in the horn mounting hole 14, the horn mounting hole 14 facilitates connection between the front box block 11 and the horn main body 1, and the external sound mounting opening 15 facilitates connection between the rear box block 13 and a sound source.

Preferably, the four corners of one end of the front box block 11 close to the rear box block 13 are provided with inward concave inserting openings 17, the position of one end of the rear box block 13 close to the front box block 11 corresponding to the inserting openings 17 is provided with convex inserting convex columns 16, the inserting convex columns 16 are matched with the inserting openings 17 in an inserting mode, the front box block 11 is matched with the rear box block 13 in an inserting mode, the inserting convex columns 16 are matched with the inserting openings 17 in an inserting mode, so that the front box block 11 and the rear box block 13 are matched to clamp the vibration film 12 in the middle, and sound source sound waves are transmitted.

Preferably, be circular array evenly arrange on the mounting disc 3 and set up a plurality of mounting opening 18 that link up, all passed through coupling mechanism 19 in the mounting opening 18, mounting opening 18 and the cooperation of coupling mechanism 19 are convenient for install the bugle on the speaker or on other equipment that need the bugle.

Preferably, a connecting bolt 20 is arranged at the middle position of the connecting mechanism 19, one end of the connecting bolt 20 is connected with a bolt nut 23 in a regular hexagonal structure, one end of the connecting bolt 20, which is far away from the bolt nut 23, is provided with a connecting nut 21 in a regular hexagonal structure, a through nut opening 22 is arranged at the middle position of the connecting nut 21, the outer wall of the connecting bolt 20 is provided with an external thread, the inner wall of the nut opening 22 is provided with an internal thread, the connecting bolt 20 is in rotating fit with the connecting nut 21, by mounting the mounting plate 3 with the horn body 1 and the sounding box 2 on a loudspeaker or other device requiring a horn, the horn is secured to the speaker or other device requiring the horn by passing the connector bolt 20 through the mounting opening 18 through a mounting hole in the speaker or device and then screwing the connector nut 21 onto the end of the connector bolt 20 remote from the bolt nut 23.

The working principle of the utility model is as follows:

through the ripples when the transmission, can produce the interference effect of wave meetting two adjacent through-holes, make one ripples produce the phenomenon of two strands of ripples, make the sound wave that transmits to bugle main part 1 department through sound production casket 2 pass through first interference opening 8 and generate multistrand ripples inside bugle opening 4, the direction of delivery of multistrand ripples has stronger directive property and intensity distribution of wave is even, be convenient for by clear listening, when the multistrand ripples passes through apron 6 and transmits inside bugle main part 1, interfere the second time through second interference opening 10, make multistrand ripples produce the reverse different ripples of multistrand, make the ripples of transmitting produce multidirectional propagation, then make the sound of transmission have the stereoeffect, can effectively improve the impression when listening.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a variable directive property bugle based on wave front segmentation technique, includes the bugle main part (1) that is round platform type structure, its characterized in that: the horn is characterized in that the short diameter end of the horn main body (1) is connected with a sounding box (2), the long diameter end of the horn main body (1) is externally connected with a mounting disc (3), a horn opening (4) with two through ends is formed in the middle position of the horn main body (1), a sound distribution plate (5) with an adaptive surface is installed in the horn opening (4), and a cover plate (6) with an adaptive surface is installed in a manner that one end of the horn opening (4) far away from the sounding box (2) is embedded.

2. The variable directivity horn based on the wavefront division technique of claim 1, wherein: the loudspeaker voice board is characterized in that a plurality of voice splitting single plates (7) which are uniformly distributed in a linear array are arranged in the voice splitting plate (5), two adjacent first interference openings (8) are formed in the middle positions of the voice splitting single plates (7), and the voice splitting single plates (7) and the cover plate (6) are both adapted to the horn openings (4).

3. The variable directivity horn based on the wavefront division technique of claim 2, wherein: the cover plate (6) is provided with through veneer openings (9) at positions corresponding to the partial tone veneers (7), and two adjacent second interference openings (10) are formed at the upper end and the lower end between two adjacent partial tone veneers (7).

4. The variable directivity horn based on the wavefront division technique of claim 1, wherein: one end of the sounding box (2) close to the horn main body (1) is provided with a front box block (11), one end of the front box block (11) far away from the horn main body (1) is provided with a vibrating membrane (12), one end of the vibrating membrane (12) close to the front box block (11) is of a hemispherical structure, and one end of the vibrating membrane (12) far away from the front box block (11) is provided with a rear box block (13).

5. The variable directivity horn based on the wavefront division technique of claim 4, wherein: the horn installation structure is characterized in that a through horn installation hole (14) is formed in the middle of the front box block (11), a through outer sound installation opening (15) is formed in the middle of the rear box block (13), and the horn main body (1) is installed in the horn installation hole (14).

6. The variable directivity horn based on the wavefront division technique of claim 4, wherein: the front box is characterized in that inwards-concave inserting openings (17) are formed in four corners of one end, close to a rear box block (13), of the front box block (11), convex inserting convex columns (16) are arranged in positions, corresponding to the inserting openings (17), of one end, close to the front box block (11), of the rear box block (13), the inserting convex columns (16) are matched with the inserting openings (17) in an inserting mode, and the front box block (11) is matched with the rear box block (13) in an inserting mode.

7. The variable directivity horn based on the wavefront division technique of claim 1, wherein: the mounting disc (3) is provided with a plurality of through mounting openings (18) which are uniformly distributed in a circular array, and the mounting openings (18) are internally provided with connecting mechanisms (19) in a penetrating manner.

8. The variable directivity horn based on the wavefront division technique of claim 7, wherein: the utility model discloses a bolt, including coupling mechanism (19), the intermediate position department of coupling mechanism (19) is provided with connecting bolt (20), the one end of connecting bolt (20) is connected with bolt nut (23) that are regular hexagon structure, the one end that bolt nut (23) were kept away from in connecting bolt (20) is provided with connecting nut (21) that are regular hexagon structure, the nut opening (22) that link up is seted up in the intermediate position department of connecting nut (21), the outer wall of connecting bolt (20) is provided with the external screw thread, the internal thread has been seted up to the inner wall of nut opening (22), connecting bolt (20) and connecting nut (21) rotation cooperation.