CN216820035U - Planar waveguide bugle - Google Patents
Planar waveguide bugle Download PDFInfo
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- CN216820035U CN216820035U CN202123244014.2U CN202123244014U CN216820035U CN 216820035 U CN216820035 U CN 216820035U CN 202123244014 U CN202123244014 U CN 202123244014U CN 216820035 U CN216820035 U CN 216820035U
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Abstract
The utility model discloses a planar waveguide bugle, comprising: the mounting plate comprises a first surface and a second surface, wherein the first surface is the opposite side of the second surface; the first arc-shaped plate is fixed on the first surface; the second arc-shaped plate is fixed on the second surface; the first arc-shaped plate and the second arc-shaped plate are identical in structure and are symmetrically arranged relative to the mounting plate, the first arc-shaped plate and the second arc-shaped plate are encircled to form an ellipsoidal sound guide channel, one end of the ellipsoidal sound guide channel is narrowed to form a circular sound inlet, and the other end of the ellipsoidal sound guide channel is diffused towards two sides to form a rectangular sound outlet; according to the planar waveguide bugle provided by the embodiment of the utility model, the first arc-shaped plate and the second arc-shaped plate surround to form the ellipsoidal sound guiding channel, the ellipsoidal structure ensures that the sound wave energy is concentrated, the other end of the ellipsoidal sound guiding channel diffuses towards two sides to form the rectangular sound outlet, and the design of the rectangular sound outlet ensures the directivity and the uniformity of the sound wave.
Description
Technical Field
The embodiment of the utility model relates to audio equipment, in particular to a planar waveguide horn.
Background
The bugle originates from the gramophone, and the principle of bugle is the vibrating diaphragm vibration through loudspeaker, and the sound wave that the vibrating diaphragm vibration produced spreads after enlargiing through the bugle, and the tone quality that the bugle spreads can all be influenced in the shape design and the length design of bugle, and traditional bugle is because shape design is unreasonable, and the diffusivity that leads to the bugle is relatively poor with directive property.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present invention is to provide a planar waveguide horn, which is used to solve the problem in the prior art that the diffusivity and the directivity of the horn are poor.
A planar waveguide horn, comprising:
the mounting plate comprises a first surface and a second surface, wherein the first surface is opposite to the second surface;
the first arc-shaped plate is fixed on the first surface;
the second arc-shaped plate is fixed on the second surface;
first arc with the second arc plate structure is the same and for the mounting panel symmetry sets up, first arc with the second arc surrounds and forms ellipsoid sound conduction passageway, the one end narrowing of ellipsoid sound conduction passageway forms circular sound inlet, the other end of ellipsoid sound conduction passageway forms rectangle sound outlet to both sides diffusion, the inside of ellipsoid sound conduction passageway still is provided with the phase plug, and the sound wave is followed circular sound inlet gets into and follows behind the ellipsoid sound conduction passageway rectangle sound outlet spreads out.
Preferably, the rectangular sound outlet comprises a first side wall, a second side wall, a third side wall and a fourth side wall; the first side wall is located on an opposite side of the third side wall and the second side wall is located on an opposite side of the fourth side wall.
Preferably, the first side wall and the third side wall are parallel to each other, and an included angle formed between the second side wall and the fourth side wall is less than or equal to 10 degrees.
Preferably, the length of the long side of the rectangular sound outlet is greater than the caliber of the circular sound inlet.
Preferably, a first rib is mounted on the surface of the first arc-shaped plate, and the first rib extends from one end of the first arc-shaped plate to the other end of the first arc-shaped plate.
Preferably, the surface of the second arc-shaped plate is provided with a second rib, and the second rib extends from one end of the second arc-shaped plate to the other end of the second arc-shaped plate.
Preferably, the sound-emitting device further comprises a square block vertically fixed at one end of the mounting plate, an annular strip is arranged in the middle of the square block in a protruding mode, and the rectangular sound outlet is formed in the annular strip.
Preferably, still including the lock joint be in diffusion head on the annular strip, the diffusion head is the fretwork form just the one end of diffusion head form with the square groove that the annular strip was joined in marriage and is inserted, the other end of diffusion head forms the fan-shaped opening that is used for the sound wave diffusion.
Preferably, the fan-shaped opening includes a first side surface, a second side surface, a third side surface and a fourth side surface, the first side surface is located at the opposite side of the third side surface, the second side surface is located at the opposite side of the fourth side surface, the first side surface and the third side surface are arc surfaces, and the second side surface and the fourth side surface are planes.
Preferably, the mounting plate is provided with a plurality of screw holes for fixing the planar waveguide horn.
According to the planar waveguide bugle provided by the embodiment of the utility model, the first arc-shaped plate and the second arc-shaped plate surround to form the ellipsoidal sound guiding channel, the ellipsoidal structure ensures that the sound wave energy is concentrated, the other end of the ellipsoidal sound guiding channel diffuses towards two sides to form the rectangular sound outlet, and the design of the rectangular sound outlet ensures the directivity and the uniformity of the sound wave.
Drawings
FIG. 1 is a general schematic view of a planar waveguide horn of the present invention;
FIG. 2 is a schematic cross-sectional view of a planar waveguide horn of the present invention;
fig. 3 is an overall schematic view of the diffusion head of the present invention.
The list of elements is as follows:
a mounting plate 1;
a first arc-shaped plate 2;
a second arc-shaped plate 3;
an ellipsoidal sound guiding channel 4;
a square block 5;
a diffusion head 6;
a phase plug 7;
a first face 11;
a second face 12;
a screw hole 13;
a circular sound inlet 21;
a rectangular sound outlet 22;
a first rib 23;
a second rib 24;
an annular strip 51;
a square groove 61;
a sector-shaped opening 62;
a first sidewall 221;
a second sidewall 222;
the third side wall 223;
a fourth side wall 224;
a first side 621;
a second side 622;
a third side 623;
a fourth side 624.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
A planar waveguide horn as shown in fig. 1-3, comprising: the mounting plate comprises a mounting plate 1, a first arc-shaped plate 2 and a second arc-shaped plate 3;
the mounting plate 1 comprises a first face 11 and a second face 12, wherein the first face 11 is opposite to the second face 12; the first arc-shaped plate 2 is fixed on the first surface 11; the second arcuate plate 3 is secured to the second face 12. Furthermore, the area of the mounting plate 1 covered by the first arc-shaped plate 2 and the second arc-shaped plate 3 is of a hollow design; the mounting plate 1 is used to mount a planar waveguide horn on an acoustic device.
The first arc-shaped plate 2 and the second arc-shaped plate 3 are identical in structure and are symmetrically arranged relative to the mounting plate 1, the first arc-shaped plate 2 and the second arc-shaped plate 3 are surrounded to form an ellipsoidal sound guide channel 4, the ellipsoidal sound guide channel 4 is a sound transmission channel of sound waves, a phase plug 7 is further arranged inside the ellipsoidal sound guide channel 4, the phase plug 7 is preferably of an eyeball structure of human eyes, the phase plug 7 is arranged in the middle of the ellipsoidal sound guide channel 4, gaps are formed between the upper side, the lower side, the left side and the right side of the phase plug, the first arc-shaped plate 2 and the second arc-shaped plate 3, and the gaps form the ellipsoidal sound guide channel 4; in the embodiment, the phase plug 7 is arranged in the ellipsoidal sound guide channel 4, so that the energy of sound wave conduction is more concentrated, and the sound distortion is reduced.
One end of the ellipsoidal sound guide channel 4 is narrowed to form a circular sound inlet 21, the other end of the ellipsoidal sound guide channel 4 is diffused towards two sides to form a rectangular sound outlet 22, and sound waves enter from the circular sound inlet 21, are diffused through the ellipsoidal sound guide channel 4 and then are transmitted from the rectangular sound outlet 22; wherein circular sound inlet 21 department is used for installing high pitch or middle-range loudspeaker, and the sound wave that high pitch or middle-range loudspeaker produced directly gets into from circular sound inlet 21, spreads out from rectangle sound outlet 22, and the design of rectangle sound outlet 22 has guaranteed the homogeneity of sound wave conduction.
Preferably, the rectangular sound outlet 22 includes a first sidewall 221, a second sidewall 222, a third sidewall 223 and a fourth sidewall 224; the first sidewall 221 is located opposite to the third sidewall 223, and the second sidewall 222 is located opposite to the fourth sidewall 224.
Preferably, the first sidewall 221 and the third sidewall 223 are parallel to each other, and an included angle formed between the second sidewall 222 and the fourth sidewall 224 is less than or equal to 10 degrees; the opening angle of the rectangular sound outlet 22 is set to a vertical covering angle within 10 degrees, so that the sound energy is concentrated and the sound has strong covering directivity.
Preferably, in order to improve the diffusivity of the sound wave, the length of the long side of the rectangular sound outlet 22 is larger than the diameter of the circular sound inlet 21.
Preferably, in order to improve the stability of the horn structure, a first rib 23 is installed on the surface of the first arc-shaped plate 2, and the first rib 23 extends from one end of the first arc-shaped plate 2 to the other end of the first arc-shaped plate 2.
Preferably, the surface of the second arc-shaped plate 3 is provided with a second rib 24, and the second rib 24 extends from one end of the second arc-shaped plate 3 to the other end of the second arc-shaped plate 3.
Preferably, the microphone also comprises a square block 5 vertically fixed at one end of the mounting plate 1, an annular strip 51 is convexly arranged in the middle of the square block 5, and the rectangular sound outlet 22 is formed in the annular strip 51.
Preferably, the sound wave sound absorption device further comprises a diffusion head 6 buckled on the annular strip 51, wherein the diffusion head 6 is hollow, a square groove 61 matched with the annular strip 51 is formed at one end of the diffusion head 6, and a fan-shaped opening 62 for sound wave diffusion is formed at the other end of the diffusion head 6; the diffusion head 6 serves to further diffuse the sound waves emanating from the horn, further increasing the energy of sound propagation.
Preferably, the fan-shaped opening 62 includes a first side 621, a second side 622, a third side 623, and a fourth side 624, the first side 621 is located at an opposite side of the third side 623, the second side 622 is located at an opposite side of the fourth side 624, wherein both the first side 621 and the third side 623 are arc-shaped surfaces, an opening angle between the first side 621 and the second side 622 increases along a direction away from the square groove 61, and the second side 622 and the fourth side 624 are flat surfaces.
Preferably, the mounting plate 1 is provided with a plurality of screw holes 13 for fixing the planar waveguide horn.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A planar waveguide horn, comprising:
the mounting plate comprises a first surface and a second surface, wherein the first surface is opposite to the second surface;
the first arc-shaped plate is fixed on the first surface;
the second arc-shaped plate is fixed on the second surface;
the first arc-shaped plate and the second arc-shaped plate are identical in structure and are symmetrically arranged relative to the mounting plate, the first arc-shaped plate and the second arc-shaped plate surround to form an ellipsoidal sound guide channel, one end of the ellipsoidal sound guide channel is narrowed to form a circular sound inlet, the other end of the ellipsoidal sound guide channel diffuses towards two sides to form a rectangular sound outlet, and a phase plug is further arranged inside the ellipsoidal sound guide channel; and sound waves enter from the circular sound inlet and are transmitted out from the rectangular sound outlet after passing through the ellipsoidal sound guide channel.
2. The planar waveguide horn of claim 1, wherein the oblong sound outlet comprises a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall; the first side wall is located on an opposite side of the third side wall and the second side wall is located on an opposite side of the fourth side wall.
3. The planar waveguide horn of claim 2, wherein the first and third sidewalls are parallel to each other, and an included angle formed between the second and fourth sidewalls is less than or equal to 10 degrees.
4. The planar waveguide horn of claim 1, wherein the length of the long side of the rectangular sound outlet is greater than the caliber of the circular sound inlet.
5. The planar waveguide horn of claim 1, wherein the first arcuate plate has a first rib mounted to a surface thereof, the first rib extending from one end of the first arcuate plate to the other end of the first arcuate plate.
6. The planar waveguide horn of claim 1, wherein the surface of the second arcuate plate is provided with second ribs extending from one end of the second arcuate plate to the other end of the second arcuate plate.
7. The planar waveguide horn according to claim 1, further comprising a square block vertically fixed to one end of the mounting plate, wherein an annular strip protrudes from the middle of the square block, and the annular strip is provided with the rectangular sound outlet.
8. The planar waveguide horn according to claim 7, further comprising a diffusing head fastened to the ring-shaped strip, wherein the diffusing head is hollowed out and has one end forming a square groove for matching with the ring-shaped strip, and the other end forming a fan-shaped opening for sound wave diffusion.
9. The planar waveguide horn of claim 8, wherein the scalloped opening comprises a first side, a second side, a third side, and a fourth side, the first side being opposite the third side, the second side being opposite the fourth side, wherein the first and third sides are curved surfaces, and the second and fourth sides are planar surfaces.
10. The planar waveguide horn of claim 1, wherein the mounting plate is provided with a plurality of screw holes for fixing the planar waveguide horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244014.2U CN216820035U (en) | 2021-12-22 | 2021-12-22 | Planar waveguide bugle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123244014.2U CN216820035U (en) | 2021-12-22 | 2021-12-22 | Planar waveguide bugle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216820035U true CN216820035U (en) | 2022-06-24 |
Family
ID=82056636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123244014.2U Active CN216820035U (en) | 2021-12-22 | 2021-12-22 | Planar waveguide bugle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216820035U (en) |
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2021
- 2021-12-22 CN CN202123244014.2U patent/CN216820035U/en active Active
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