CN214627344U - Multichannel symmetrical structure plane wave guide pipe bugle - Google Patents
Multichannel symmetrical structure plane wave guide pipe bugle Download PDFInfo
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- CN214627344U CN214627344U CN202120713078.3U CN202120713078U CN214627344U CN 214627344 U CN214627344 U CN 214627344U CN 202120713078 U CN202120713078 U CN 202120713078U CN 214627344 U CN214627344 U CN 214627344U
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Abstract
The utility model relates to an audio amplifier equipment technical field specifically discloses a multichannel symmetrical structure plane wave guide pipe bugle, including the bugle body, the bugle body is the bugle body of back taper structure, the inside sound wave stand pipe that is provided with of bugle body, the one end of sound wave stand pipe is provided with into the sound fixed plate, the other one end of sound wave stand pipe is provided with the sound fixed plate, the one end that the sound wave stand pipe is close to the sound fixed plate is formed with coplane sound production opening, be provided with at least one multichannel sound wave guide structure in the sound wave stand pipe. The utility model discloses accord with linear array plane wave characteristic, effectively avoided sound mutual interference and distortion for the high pitch part obtains directive property more even and accurate in coverage.
Description
Technical Field
The utility model relates to an audio amplifier equipment technical field, concretely relates to multichannel symmetrical structure plane wave guide pipe bugle.
Background
Horn horns, i.e. horn speakers, originally originated from gramophones. The horn speaker operates on the principle that the diaphragm pushes air at the bottom of the horn, so that the horn speaker has high efficiency and high volume because the impedance of sound is very high, but the horn speaker cannot easily reproduce low frequencies because the shape and length of the horn speaker affect the timbre and timbre of the horn speaker. The horn loudspeaker is composed of a vibration system (a high-sound head) and a horn. The vibration system is similar to the cone loudspeaker except that its diaphragm is not a cone but a dome-shaped diaphragm. The vibration of the diaphragm radiates sound waves into the air through the horn (via two reflections). The traditional horn conducted sound often causes mutual interference and distortion of sound, and the high-frequency directional control level of the horn is low, so that the horn does not conform to the plane wave property of a linear array. For this purpose, we propose a planar waveguide horn with a multi-channel symmetrical structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multichannel symmetrical structure plane wave pipe bugle accords with linear array plane wave characteristic, has effectively avoided sound mutual interference and distortion for the high pitch part obtains directive property more even and accurate in coverage.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a multichannel symmetrical structure plane wave pipe bugle, includes the bugle body, its characterized in that: the bugle body is the bugle body of back taper structure, the inside sound wave stand pipe that is provided with of bugle body, the one end of sound wave stand pipe is provided with into the sound fixed plate, the other one end of sound wave stand pipe is provided with the sound fixed plate, the one end that the sound wave stand pipe is close to the sound fixed plate is formed with coplane sound production opening, be provided with at least one multichannel sound wave guide structure in the sound wave stand pipe.
As the utility model discloses a preferred scheme, the sound wave stand pipe is including leading the sound channel and leading the sound channel down, go up lead the sound channel with it sets up to lead the sound channel mutually symmetrical down inside the bugle body.
By adopting the structure, the upper sound guide channel and the lower sound guide channel are symmetrically arranged, so that the paths, time and phases of sound waves from the sound inlet through hole to the coplanar generating port are almost the same, and the mutual interference and distortion of sound can be effectively avoided.
As the preferred scheme of the utility model, it has the sound through-hole to go into to open on the sound fixed plate, go into the sound through-hole all with go up the sound channel and down the sound channel of leading is linked together.
Adopt such structure, the through-hole setting of entrying is on entrying the fixed plate, can directly install the bugle in sound source department when the installation, lets sound that the sound source sent get into the bugle body inside from entrying through-hole department effectively, has avoided effectively because the problem that the loss leads to the sound quality to descend when the sound source propagates.
As the utility model discloses a preferred scheme, multichannel sound wave guide structure includes first sound wave direction baffle and second sound wave direction baffle, first sound wave direction baffle sets up in the last sound channel of leading, second sound wave direction baffle sets up lead in the sound channel down.
With such a structure, the first acoustic wave guide partition plate and the second acoustic wave guide partition plate can divide the upper sound guide channel and the lower sound guide channel into at least two sound guide channels, so that mutual interference of sound can be effectively avoided.
As the preferred scheme of the utility model, first sound wave direction baffle will go up the sound conduction channel and cut apart into two at least first sound conduction channels.
By adopting the structure, the upper sound guide channel is divided into at least two first sound guide channels by the first sound guide partition plate, so that the mutual interference of sound can be effectively avoided, and the sound quality is effectively improved.
As a preferred embodiment of the present invention, the second acoustic waveguide is divided into at least two second acoustic channels by the second acoustic waveguide directional partition plate.
By adopting the structure, the down guide sound channel is divided into at least two second guide sound channels by the second sound guide direction partition plate, so that the mutual interference of sound can be effectively avoided, and the sound quality is effectively improved.
As the preferred embodiment of the present invention, the thickness of the first sound wave guide partition plate is along the upper sound guide channel to the coplanar sound emission opening direction is gradually reduced.
By adopting the structure, when meeting the first sound wave guide partition plate, the sound wave entering the upper sound guide channel can be divided into two sound waves to enter the first sound guide channel, the thickness of the first sound wave guide partition plate is gradually reduced along the direction from the upper sound guide channel to the coplanar sounding opening, so that the sound scattering direction in the first sound guide channel can be effectively guided, the sound directivity is improved, and the sound quality is further improved.
As a preferred embodiment of the present invention, the second acoustic waveguide is formed to have a thickness along the partition plate, and the lower acoustic waveguide is formed to have a thickness gradually decreasing in the direction of the coplanar sound emission opening.
By adopting the structure, when meeting the second sound guide baffle, the sound wave entering the lower sound guide channel can be divided into two sound waves to enter the second sound guide channel, and the thickness of the second sound guide baffle is gradually reduced along the direction from the lower sound guide channel to the coplanar sounding opening, so that the sound scattering direction in the second sound guide channel can be effectively guided, the sound directivity is improved, and the sound quality is further improved.
As the preferred scheme of the utility model, the bugle body is located go up lead the sound channel with be provided with the through-hole down between the sound channel.
With such a structure, on one hand, the cost can be saved in the processing process, the weight of the horn can be reduced, and on the other hand, the appearance of the horn can be more beautiful.
As the preferred scheme of the utility model, all open at least one fixed orifices on the play sound fixed plate and on the income sound fixed plate.
By adopting the structure, the horn can be more stably fixed at the designated position by using screws or bolts through the fixing holes, and the stability of the horn during installation is improved.
The horn of the planar waveguide tube with the multi-channel symmetrical structure has the following beneficial effects: the horn rectangular sound outlet is connected with the round sound outlet in an inverted cone shape, and the sound channel gradually transits and becomes round until being connected with the round sound inlet through hole; an upper sound guide channel and a lower sound guide channel are symmetrically arranged in a horn by taking the circle center of the sound through hole as an axis, and sound wave guide structures are arranged in the upper sound guide channel and the lower sound guide channel, so that mutual interference and distortion of sound can be effectively avoided; the thickness of the sound wave guide structure is gradually reduced along the direction from the sound inlet through hole to the coplanar sounding opening, so that the high-frequency pointing control level of the horn can be effectively improved, and the horn conforms to the planar wave characteristic of a linear array; the position that the bugle body is located between leading the sound channel and leading the sound channel down is opened there is the through-hole, can practice thrift the cost in process of production to make the bugle more pleasing to the eye.
Drawings
Fig. 1 is a schematic structural diagram of a horn of a planar waveguide with a multi-channel symmetric structure according to the present embodiment.
Fig. 2 is a left side view of the horn of the planar waveguide of the multi-channel symmetric structure of the present embodiment.
Fig. 3 is a cross-sectional view taken along the plane a-a in fig. 2.
In the figure: 1. a horn body; 2. an incident sound fixing plate; 3. a sound-emitting fixing plate; 4. a coplanar sound opening; 5. an upper guide channel; 6. a down channel; 7. a sound entrance through hole; 8. a first acoustic wave guide baffle; 9. a second acoustic waveguide diaphragm; 10. a first sound guide channel; 11. a second sound guide channel; 12. a through hole; 13. and (7) fixing holes.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.
A plane waveguide pipe horn with a multi-channel symmetrical structure is shown in figures 1-2 and comprises a horn body 1, wherein the horn body 1 is of an inverted cone structure, a sound wave guide pipe is arranged inside the horn body 1, one end of the sound wave guide pipe is provided with a sound inlet fixing plate 2, the other end of the sound wave guide pipe is provided with a sound outlet fixing plate 3, one end, close to the sound outlet fixing plate 3, of the sound wave guide pipe is provided with a coplanar sound production opening 4, and at least one multi-channel sound wave guide structure is arranged in the sound wave guide pipe. The sound wave guide tube comprises an upper sound guide channel 5 and a lower sound guide channel 6, wherein the upper sound guide channel 5 and the lower sound guide channel 6 are symmetrically arranged inside the horn body 1. The sound inlet fixing plate 2 is provided with a sound inlet through hole 7, and the sound inlet through hole 7 is communicated with the upper sound guide channel 5 and the lower sound guide channel 6. The multi-channel acoustic guide structure includes a first acoustic guide diaphragm 8 and a second acoustic guide diaphragm 9, the first acoustic guide diaphragm 8 being disposed in the upper acoustic channel 5, and the second acoustic guide diaphragm 9 being disposed in the lower acoustic channel 6. The first sound wave guide partition 8 divides the upper sound guide channel 5 into two first sound guide channels 10. The second acoustic guide diaphragm 9 divides the lower guide channel 6 into two second guide channels 11. The thickness of the first sound wave guide partition 8 gradually decreases in the direction from the upper sound guide channel 5 to the coplanar sound emission opening 4. The thickness of the second acoustic waveguide diaphragm 9 gradually decreases in the direction from the down-guide channel 6 to the coplanar sound emission opening 4. The bugle body 1 is provided with a through hole 12 between the upper sound guide channel 5 and the lower sound guide channel 6. Four fixing holes 13 are arranged on the sound outlet fixing plate 3 and the sound inlet fixing plate 2.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a multichannel symmetrical structure plane wave pipe bugle, includes the bugle body, its characterized in that: the bugle body is the bugle body of back taper structure, the inside sound wave stand pipe that is provided with of bugle body, the one end of sound wave stand pipe is provided with into the sound fixed plate, the other one end of sound wave stand pipe is provided with the sound fixed plate, the one end that the sound wave stand pipe is close to the sound fixed plate is formed with coplane sound production opening, be provided with at least one multichannel sound wave guide structure in the sound wave stand pipe.
2. The multi-channel symmetric structure planar waveguide horn of claim 1, wherein: the sound wave guide tube comprises an upper guide sound channel and a lower guide sound channel, and the upper guide sound channel and the lower guide sound channel are symmetrically arranged inside the horn body.
3. The multi-channel symmetric structure planar waveguide horn of claim 2, wherein: the sound inlet fixing plate is provided with sound inlet through holes, and the sound inlet through holes are communicated with the upper sound guide channel and the lower sound guide channel.
4. The multi-channel symmetric structure planar waveguide horn of claim 3, wherein: the multichannel sound wave guide structure comprises a first sound wave guide partition plate and a second sound wave guide partition plate, wherein the first sound wave guide partition plate is arranged in the upper guide sound channel, and the second sound wave guide partition plate is arranged in the lower guide sound channel.
5. The multi-channel symmetric structure planar waveguide horn of claim 4, wherein: the first acoustic guide baffle divides the upper sound guide channel into at least two first sound guide channels.
6. The multi-channel symmetric structure planar waveguide horn of claim 4, wherein: the second acoustic guide diaphragm divides the lower guide channel into at least two second guide channels.
7. The multi-channel symmetric structure planar waveguide horn of claim 4, wherein: the thickness of the first sound wave guide partition plate gradually decreases along the direction from the upper sound guide channel to the coplanar sound production opening.
8. The multi-channel symmetric structure planar waveguide horn of claim 4, wherein: the thickness of the second acoustic waveguide directional partition plate gradually decreases along the direction from the lower guide sound channel to the coplanar sound production opening.
9. The multi-channel symmetric structure planar waveguide horn of claim 2, wherein: the bugle body is located be provided with the through-hole between last sound channel and the sound channel is led down.
10. The multi-channel symmetric structure planar waveguide horn of claim 3, wherein: at least one fixing hole is formed in the sound outlet fixing plate and the sound inlet fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120713078.3U CN214627344U (en) | 2021-04-08 | 2021-04-08 | Multichannel symmetrical structure plane wave guide pipe bugle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120713078.3U CN214627344U (en) | 2021-04-08 | 2021-04-08 | Multichannel symmetrical structure plane wave guide pipe bugle |
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| CN214627344U true CN214627344U (en) | 2021-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119485109A (en) * | 2024-11-20 | 2025-02-18 | 广东声扬音响设备有限公司 | A mid-high frequency integrated common-mouth horn |
-
2021
- 2021-04-08 CN CN202120713078.3U patent/CN214627344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119485109A (en) * | 2024-11-20 | 2025-02-18 | 广东声扬音响设备有限公司 | A mid-high frequency integrated common-mouth horn |
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