CN106098055A - A kind of waveguide device - Google Patents
A kind of waveguide device Download PDFInfo
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- CN106098055A CN106098055A CN201610658238.2A CN201610658238A CN106098055A CN 106098055 A CN106098055 A CN 106098055A CN 201610658238 A CN201610658238 A CN 201610658238A CN 106098055 A CN106098055 A CN 106098055A
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- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
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- 230000003466 anti-cipated effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 15
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
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- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
A kind of waveguide device, including multiple waveguide unit, the plurality of waveguide unit stacks gradually with in column structure.Even if this waveguide device the waveguide mouth being arranged in a linear a fairly large number of in the case of, it is also possible to keep relatively shortwave guiding path, reduce waveguide loss；And, the phase place of sound wave of each waveguide mouth of this waveguide device radiation, amplitude all can independently adjust, it is possible to achieve directivity and the wave beam of the sound wave radiating any one or multiple waveguide mouth are controlled, and are conducive to improving the uniformity that acoustic pressure covers；The waveguide mouth output of this waveguide device is high, sound pressure level is high and radiation length is remote.
Description
Technical field
The present invention relates to technical field of acoustics, especially a kind of waveguide device.
Background technology
In field of acoustics, point sound source is with a kind of sound source of spherical wave form radiative acoustic wave, the sonic propagation of point sound source
Distance often increases by 1 times, its sound pressure level decay 6dB.And line source is a kind of sound source with form of cylindrical waves radiative acoustic wave, line source
Sonic propagation distance often increase by 1 times, its sound pressure level decay 3dB.Therefore, in order to realize the sound transmission of higher quality, at sound
Field would generally use line source transducer point sound source is converted into line source.A kind of line source that Fig. 1 is common turns
Parallel operation, it includes compressed drive 101, multiple waveguide mouth 102 being arranged in a linear and is positioned at compressed drive 101 and multiple
Multiple waveguides 103 between sound wave delivery outlet 102；Wherein, multiple waveguides 103 have the waveguide of equal length, from
The sound wave of compressed drive 101 output is directed at multiple waveguide mouth 102 by through 103 points of multiple waveguides, thus realizes cylinder waveform
Formula radiative acoustic wave.
In practice, it has been found that although the line source transducer shown in employing Fig. 1 can realize point sound source is converted into line source,
But there is also following defect: when the quantity of multiple waveguide mouths being arranged in a linear is more, waveguide is accomplished by longer ripple
Guiding path, can aggravate waveguide loss；And, the phase place of sound wave of each waveguide mouth radiation, amplitude all cannot independently be adjusted
Whole, this is just difficult to the directivity to the sound wave that any one or multiple waveguide mouth radiate and wave beam is controlled, thus unfavorable
In improving the uniformity that acoustic pressure covers；Further, compressed drive output sound wave by through multiple waveguides divide be directed at many
Individual waveguide mouth can reduce the power of waveguide mouth output, thus the sound pressure level causing waveguide mouth to export is low, and radiation length is short.
Summary of the invention
For drawbacks described above, the open a kind of waveguide device of the embodiment of the present invention, even if this waveguide device is linearly
The waveguide mouth of arrangement a fairly large number of in the case of, it is also possible to keep relatively shortwave guiding path, reduce waveguide loss；And,
The phase place of sound wave of each waveguide mouth radiation of this waveguide device, amplitude all can independently adjust, it is possible to achieve to any one
Or the directivity of the sound wave of multiple waveguide mouth radiation and wave beam are controlled, be conducive to improving the uniformity that acoustic pressure covers；This ripple
The waveguide mouth output of pipe guide is high, sound pressure level is high and radiation length is remote.
Wherein, a kind of waveguide device, including multiple waveguide unit, the plurality of waveguide unit stack gradually with in
Column structure.
As the optional embodiment of one, each described waveguide unit includes two that a straight waveguide is identical with structure
Individual waveguide elbow, described straight waveguide is identical with the Waveguide path length of said two waveguide elbow；Said two waveguide elbow
The first end be close to the both sides of the first end of described straight waveguide, the first end section of said two waveguide elbow and institute respectively
The first end section stating straight waveguide is generally aligned in the same plane, the first end section of said two waveguide elbow and described straight waveguide
The first end section respectively form an equivalently-sized rectangular waveguide mouth；Second end of said two waveguide elbow is respectively towards each other
The direction bending of the second end on the contrary and away from described straight waveguide；Second end section of said two waveguide elbow and described
Second end section of straight waveguide respectively connects a compressed drive, the compression that the second end section of said two waveguide elbow connects
The compressed drive that second end section of driver and described straight waveguide connects against and non-interference；The plurality of waveguide
Described rectangular waveguide mouth on unit arranges on the same line.
As the optional embodiment of one, the second end of the described straight waveguide that the plurality of waveguide unit includes cuts
The described compressed drive that face connects is located along the same line；And, the bending direction phase that the plurality of waveguide unit includes
The described compressed drive that second end section of each same waveguide elbow connects is located along the same line.
As the optional embodiment of one, the both sides of the first end of described straight waveguide are cut into respectively to described straight ripple
The inclined-plane that first end section of conduit tilts；The both sides of the first end of described waveguide elbow are cut into the most respectively to described waveguide bend
The inclined-plane that first end section of pipe tilts；Wherein, said two is close on the inclined-plane, both sides of the first end of described straight waveguide respectively
The inclined-plane, side of the first end of waveguide elbow.
As the optional embodiment of one, described straight waveguide is to be covered by under symmetrical straight wave guide upper cover and straight wave guide
The hollow waveguide become, and the both sides of described straight wave guide upper cover and described straight wave guide lower cover are fixed by fixture；Described directly
It is formed with fixing hole in first end section of waveguide, the second end section of described straight waveguide is formed with compressed drive even
Connecing hole, the second end section of described straight waveguide is connected with described compressed drive by described compressed drive connecting hole, and
And the second end section of described straight waveguide forms a circular waveguide mouth, described circular waveguide mouth and the second of described straight waveguide
The sound wave delivery outlet of the described compressed drive that end section connects matches.
As the optional embodiment of one, described waveguide elbow is by symmetrical waveguide bend upper cover and waveguide bend lower cover
The hollow waveguide of synthesis, and the both sides of described waveguide bend upper cover and described waveguide bend lower cover are fixed by fixture；Described
It is formed with fixing hole in first end section of waveguide elbow, the second end section of described waveguide elbow is formed with compressed drive
Connecting hole, the second end section of described waveguide elbow is connected with described compressed drive by described compressed drive connecting hole,
And the second end section of described waveguide elbow forms a circular waveguide mouth, the of described circular waveguide mouth and described waveguide elbow
The sound wave delivery outlet of the described compressed drive that two end sections connect matches.
As the optional embodiment of one, described straight waveguide is I type waveguide, and described waveguide elbow is J-type waveguide
Pipe.
As the optional embodiment of one, each described compressed drive connects a power amplifier respectively；All
Described power amplifier connect digital signal processor DSP.
As the optional embodiment of one, the described rectangular waveguide mouth that arrangement any two on the same line is adjacent
Between centre distance less than or equal to the half of the wavelength of highest frequency in operating frequency range.
As the optional embodiment of one, the length after the plurality of waveguide unit stacks gradually is more than or equal to institute
State the half of the wavelength of low-limit frequency in operating frequency range；The area sum of described rectangular waveguide mouth is at least equal to described straight ripple
First end section of conduit and the 80% of the first end section occupied area of described waveguide elbow.
Compared with prior art, the embodiment of the present invention possesses following beneficial effect:
In the embodiment of the present invention, waveguide device includes multiple waveguide unit, and each waveguide unit includes always
Waveguide and identical two waveguide elbows of structure, and the Waveguide path length phase of straight waveguide and two waveguide elbows
With；Wherein, the first end of two waveguide elbows is close to the both sides of the first end of straight waveguide, and two waveguide elbows respectively
The first end section and the first end section of straight waveguide be generally aligned in the same plane, the first end section of further two waveguide elbows
An equivalently-sized rectangular waveguide mouth is respectively formed with the first end section of straight waveguide；And, the second of two waveguide elbows
End is respectively towards the contrary each other and direction bending of the second end away from straight waveguide, and the second end section of two waveguide elbows
Respectively connecting a compressed drive with the second end section of straight waveguide, the compression that the second end section of two waveguide elbows connects is driven
The compressed drive that second end section of dynamic device and straight waveguide connects against and non-interference；Institute on multiple waveguide unit
Rectangular waveguide mouth is had to arrange on the same line.Visible, in waveguide device disclosed in the embodiment of the present invention, each waveguide
Second end section of two waveguide elbows that unit includes and the second end section of straight waveguide respectively connect a compressed drive, by
Possess certain volume in compressed drive, and the area of compressed drive is more than the first end section and the straight wave guide of waveguide elbow
First end section of pipe, when the compressed drive of the second end section connection and second end of straight waveguide of two waveguide elbows cut
The compressed drive that face connects against and non-interference time so that in a fairly large number of feelings of the waveguide mouth being arranged in a linear
Under condition, it is also possible to keep relatively shortwave guiding path, it is possible to reduce sound wave energy reflection in transmittance process, such that it is able to reduce ripple
Guiding path is lost；Additionally, due to each waveguide elbow and each straight waveguide are individually separate connection compressed drive so that
The phase place of sound wave of each waveguide mouth radiation of this waveguide device, amplitude all can independently adjust, such that it is able to realize appointing
Directivity and the wave beam of the sound wave of one or more waveguide mouths radiation are controlled, and are conducive to improving the uniformity that acoustic pressure covers,
Make it possible to provide almost consistent uniform acoustic pressure to cover from the front row of auditorium to heel row；And, every in this waveguide device
One compressed drive connects a waveguide so that waveguide mouth output is high, sound pressure level is high and radiation length is remote.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below by use required in embodiment
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the structural representation of a kind of line source transducer that prior art provides；
Fig. 2 is the structural representation of a kind of waveguide device disclosed in the embodiment of the present invention；
Fig. 3 is the structural representation of the waveguide unit that the waveguide device shown in Fig. 2 includes；
Fig. 4 is the waveguide elbow that includes of the waveguide unit shown in Fig. 3 and the structural representation of straight waveguide.
Detailed description of the invention
In embodiments of the present invention, term " on ", D score, "left", "right", "front", "rear", " top ", " end ", " interior ",
" outward ", " in ", " vertically ", " level ", " laterally ", the orientation of the instruction such as " longitudinally " or position relationship be based on shown in the drawings
Orientation or position relationship, be merely to illustrate the relative position relation between each parts or ingredient, is not particularly limited each portion
Part or the concrete installation position of ingredient.
Further, above-mentioned part term is in addition to can be used to indicate that orientation or position relationship, it is also possible to be used for representing it
His implication, such as term " on " also be likely used in some cases representing certain relations of dependence or annexation.For ability
For the those of ordinary skill of territory, these terms concrete meaning in the present invention can be understood as the case may be.
Additionally, term " is installed ", " setting ", " being provided with ", should be interpreted broadly " connection ", " being connected ".For example, it may be it is solid
Fixed connection, removably connects, or monolithic construction；Can be to be mechanically connected, or electrical connection；Can be to be joined directly together, or
Be indirectly connected to by intermediary, or be two devices, connection internal between element or ingredient.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Additionally, term " first ", " second " etc. are mainly used for distinguishing different parts or ingredient, it is not intended to table
Bright or indicated parts of hint or the relative importance of ingredient and quantity.Except as otherwise noted, the implication of " multiple " is two
Individual or two or more.
Additionally, the structure that institute's accompanying drawings is drawn in embodiments of the present invention, ratio, size etc., all it is only used for coordinating saying
Content disclosed in bright book, for skilled in the art realises that and reading, being not intended to limit the embodiment of the present invention can implement
Qualifications, therefore not there is technical essential meaning, the modification of any structure, the change of proportionate relationship or the tune of size
Whole, under not affecting effect that the embodiment of the present invention can be generated by and the purpose that can reach, all must fall and implement in the present invention
In the range of technology contents disclosed in example is contained.
The open a kind of waveguide device of the embodiment of the present invention, even if this waveguide device is at the waveguide mouth being arranged in a linear
In the case of a fairly large number of, it is also possible to keep relatively shortwave guiding path, reduce waveguide loss；And, this waveguide device
The phase place of sound wave of each waveguide mouth radiation, amplitude all can independently adjust, it is possible to achieve to any one or multiple waveguide mouth spoke
Directivity and the wave beam of the sound wave penetrated are controlled, and are conducive to improving the uniformity that acoustic pressure covers；The waveguide of this waveguide device
Mouth output is high, sound pressure level is high and radiation length is remote.Below it is combined accompanying drawing to be described in detail.
Embodiment one
The embodiment of the invention discloses a kind of waveguide device, including multiple waveguide unit, the plurality of waveguide list
Unit stacks gradually with in column structure；Each described waveguide unit includes two waveguide bends that a straight waveguide is identical with structure
Pipe, described straight waveguide is identical with the Waveguide path length of said two waveguide elbow；First end of said two waveguide elbow
It is close to the both sides of the first end of described straight waveguide respectively, the first end section of said two waveguide elbow and described straight wave guide
First end section of pipe is generally aligned in the same plane, the first end section of said two waveguide elbow and the first end of described straight waveguide
Cross section respectively forms an equivalently-sized rectangular waveguide mouth；Second end of said two waveguide elbow respectively towards contrary each other and
Direction bending away from the second end of described straight waveguide；Second end section of said two waveguide elbow and described straight waveguide
The second end section respectively connect a compressed drive, said two waveguide elbow second end section connect compressed drive and
Described straight waveguide second end section connect compressed drive against and non-interference；On the plurality of waveguide unit
Described rectangular waveguide mouth arranges on the same line.
Embodiment two
Referring to Fig. 2～Fig. 4, Fig. 2 is the structural representation of a kind of waveguide device disclosed in the embodiment of the present invention；Fig. 3
It it is the structural representation of the waveguide unit that the waveguide device shown in Fig. 2 includes；Fig. 4 is the waveguide unit bag shown in Fig. 3
The waveguide elbow included and the structural representation of straight waveguide.As in figure 2 it is shown, this waveguide device can include multiple waveguide list
Unit 1, wherein, the plurality of waveguide unit 1 stacks gradually with in column structure；
As shown in Figure 2 to 3, each described waveguide unit 1 can include that a straight waveguide 11 is identical with structure two
Individual waveguide elbow 12；Wherein, described straight waveguide 11 is identical with the Waveguide path length of said two waveguide elbow 12；Described two
First end of individual waveguide elbow 12 is close to the both sides of the first end of described straight waveguide 11, said two waveguide elbow 12 respectively
The first end section and the first end section of described straight waveguide 11 be generally aligned in the same plane, and said two waveguide elbow 12
First end section of the first end section and described straight waveguide 11 respectively forms an equivalently-sized rectangular waveguide mouth 13；Described two
Second end of individual waveguide elbow 12 is respectively towards the contrary each other and direction bending of the second end away from described straight waveguide 11；Institute
Second end section of the second end section and described straight waveguide 11 of stating two waveguide elbows 12 respectively connects a compressed drive 14,
The compressed drive 14 of the second end section connection of said two waveguide elbow 12 and the second end section of described straight waveguide 11
Connect compressed drive 14 against and non-interference；Wherein, the described rectangular waveguide mouth 13 on the plurality of waveguide unit 1
Arrangement is on the same line.
Wherein, described straight waveguide 11 is identical with the Waveguide path length of said two waveguide elbow 12 refers to: described directly
The sound wave that the compression driven unit 14 that second end section of waveguide 11 connects sends arrives the first end of described straight waveguide 11
The compressible drive list that the distance of described rectangular waveguide mouth 13 that cross section is formed is connected with the second end section of described waveguide elbow 12
The distance of the described rectangular waveguide mouth 14 that the sound wave that unit 14 sends arrives the first end section formation of described waveguide elbow 12 is identical,
The sound wave that all of described rectangular waveguide mouth 13 is exported can form equiphase wave surface.
As in figure 2 it is shown, the institute that the second end section of the described straight waveguide 11 that includes of the plurality of waveguide unit 1 connects
State compressed drive 14 to be located along the same line, and identical each of the bending direction that includes of the plurality of waveguide unit is curved
Waveguide 12 second end section connect described compressed drive 14 be located along the same line, thus formed be distributed in three put down
On the straight line of row, and non-interference compressed drive array, thus be conducive to increasing the plurality of waveguide unit 1 and depend on
The length of sublevel poststack.
As shown in Figure 2 to 4, the both sides of the first end of described straight waveguide 11 are cut into respectively to described straight waveguide 11
First end section tilt inclined-plane a；The both sides of the first end of described waveguide elbow 12 are cut into the most respectively to described waveguide bend
The inclined-plane a that first end section of pipe 12 tilts；Wherein, inclined-plane, the both sides a of the first end of described straight waveguide 11 is close to institute respectively
State inclined-plane, the side a of the first end of two waveguide elbows 12, thus be possible not only to first so that said two waveguide elbow 12
End can more firmly be close to the both sides of the first end of described straight waveguide 11, it is also possible to makes said two waveguide elbow
The described square that the described rectangular waveguide mouth 13 of the first end section formation of 12 is formed with the first end section of described straight waveguide 11
Centre distance between shape waveguide mouth 13 closer to, to meet line source to the centre distance between two waveguide mouths of arbitrary neighborhood
Requirement.
As shown in Figure 4, described straight waveguide 11 is to be synthesized by symmetrical straight wave guide upper cover 111 and straight wave guide lower cover 112
Hollow waveguide, and the both sides of described straight wave guide upper cover 111 and described straight wave guide lower cover 112 are fixed by fixture b；Described
It is formed with fixing hole c, for being fixed on inside audio amplifier by described straight waveguide 11 in first end section of straight waveguide 11；Described
Being formed with compressed drive connecting hole d in second end section of straight waveguide 11, the second end section of described straight waveguide 11 is led to
Cross described compressed drive connecting hole d to be connected with described compressed drive 14, and the second end section of described straight waveguide 11
Forming a circular waveguide mouth (not shown), described circular waveguide mouth is connected with the second end section of described straight waveguide 11
The sound wave delivery outlet of described compressed drive 14 match.
As shown in Figure 4, described waveguide elbow 12 is to be synthesized by symmetrical waveguide bend upper cover 121 and waveguide bend lower cover 122
Hollow waveguide, and the both sides of described waveguide bend upper cover 121 and described waveguide bend lower cover 122 are fixed by fixture b；Described
It is formed with fixing hole c in first end section of waveguide elbow 12, the second end section of described waveguide elbow 12 is formed with compression
Driver connecting hole b (not shown), the second end section of described waveguide elbow 12 passes through described compressed drive connecting hole b
It is connected with described compressed drive 14, and the second end section of described waveguide elbow 12 forms a circular waveguide mouth (in figure not
Display), the sound wave of the described compressed drive 14 that described circular waveguide mouth is connected with the second end section of described waveguide elbow 12
Delivery outlet matches.
As shown in Figure 2 to 4, described straight waveguide 11 is I type waveguide, and described waveguide elbow is J-type waveguide.
In the embodiment of the present invention, between the described rectangular waveguide mouth 13 that arrangement any two on the same line is adjacent
Centre distance is less than or equal to the half of the wavelength of highest frequency in operating frequency range.
As an example it is assumed that λminFor highest frequency f in operating frequency rangemaxWavelength, then be arranged in same straight line
On the adjacent described rectangular waveguide mouth 13 of any two between centre distance d≤1/2 λmin, i.e. d≤c/ (2*fmax), its
In, c represents that velocity of wave, unit are m/s.At room temperature, c is about 340m/s.For example, it is assumed that operating frequency is 10kHz, take c=
340m/s, then dmax=1.7cm；And the highest frequency 15kHz that assumes to work, then require dmax=1.13cm.Wherein, arrangement
Centre distance between the described rectangular waveguide mouth 13 that any two on the same line is adjacent is less than or equal to operating frequency
In the range of the half of wavelength of highest frequency, it is therefore an objective to the secondary lobe of line source can be reduced such that it is able to preferably by acoustic energy collection
In to gallery.
In the embodiment of the present invention, the length after the plurality of waveguide unit 1 stacks gradually is more than or equal to described work
The half of the wavelength of low-limit frequency in frequency range.
As an example it is assumed that λmaxFor low-limit frequency f in operating frequency rangeminWavelength, then the plurality of waveguide
Unit 1 stack gradually after length L >=1/2 λmax, i.e. L >=c/ (2*fmin), for example, it is assumed that to control the low frequency to 100Hz, take
C=340m/s, then Lmin=1.7m；For example, it is assumed that to control the low frequency to 1500Hz, take c=340m/s, then Lmin=
11cm.Wherein, the length after the plurality of waveguide unit 1 stacks gradually is minimum more than or equal in described operating frequency range
The half of the wavelength of frequency, it is therefore an objective to line source can be made to have narrower main beam.
In the embodiment of the present invention, the area sum of described rectangular waveguide mouth 13 is at least equal to the first of described straight waveguide 11
The 80% of first end section occupied area of end section and described waveguide elbow 12, so that each described rectangular waveguide mouth 13
Line source can be formed, can preferably meet the acoustic condition of line source array.
In the embodiment of the present invention, each described compressed drive 14 can also connect a power amplifier respectively, and
All of described power amplifier can also connect digital signal processor (DSP), by utilizing DSP, can use equilibrium, prolong
Time, sound wave is adjusted, such that it is able to the control of directivity and wave beam is better achieved by filtering, the method such as gain.
In the embodiment of the present invention, the second end section of waveguide elbow 12 matches with the cross section of described compressed drive 14,
And the cross section of the second end section of waveguide elbow 12 and described compressed drive 14 is all higher than the first end of waveguide elbow 12 and cuts
Face.
In the embodiment of the present invention, the second end section of straight waveguide 11 matches with the cross section of described compressed drive 14,
And the cross section of the second end section of straight waveguide 11 and described compressed drive 14 is all higher than the first end of straight waveguide 11 and cuts
Face.
As it is shown on figure 3, the second end of said two waveguide elbow 12 is respectively towards contrary each other and away from described straight waveguide
The direction bending of second end of 11, specifically, the second end of said two waveguide elbow 12 is respectively towards contrary each other and away from institute
The degree of the direction bending stating the second end of straight waveguide 11 is to connect with the second end section of said two waveguide elbow 12
Compressed drive that compressed drive 14 is connected with the second end section of described straight waveguide 11 14 mutually against and non-interference
For foundation.Wherein, the second end section of said two waveguide elbow 12 connects compressed drive 14 and described straight waveguide
The compressed drive 14 that second end section of 11 connects mutually against and non-interference refer to: the of said two waveguide elbow 12
Outside the compressed drive 14 that the compressed drive 14 that two end sections connect is connected with the second end section of described straight waveguide 11
Sidewall is mutually against, and the installation each other that is independent of each other.It addition, described in any two during 1 stacking of waveguide unit, described in two
Each compressed drive 14 of waveguide unit 1 is also independent of each other installation each other.
Visible, in waveguide device disclosed in the embodiment of the present invention, two waveguide elbows that each waveguide unit includes
The second end section and the second end section of straight waveguide respectively connect a compressed drive, owing to compressed drive possesses necessarily
Volume, when the pressure that the compressed drive of the second end section connection and second end section of straight waveguide of two waveguide elbows connect
Contracting driver against and non-interference time so that the waveguide mouth being arranged in a linear a fairly large number of in the case of, it is possible to
To keep relatively shortwave guiding path, it is possible to reduce sound wave energy reflection in transmittance process, damage such that it is able to reduce waveguide
Consumption；Additionally, due to each waveguide elbow and each straight waveguide are individually separate connection compressed drive so that this waveguide
Device each waveguide mouth radiation the phase place of sound wave, amplitude all can independently adjust, such that it is able to realize to any one or many
Directivity and the wave beam of the sound wave of individual waveguide mouth radiation are controlled, and are conducive to improving the uniformity that acoustic pressure covers, enabling
Almost consistent uniform acoustic pressure is provided to cover from the front row of auditorium to heel row；And, each compression in this waveguide device
Driver connects a waveguide so that waveguide mouth output is high, sound pressure level is high and radiation length is remote.
Above waveguide device a kind of disclosed in the embodiment of the present invention is described in detail, used herein specifically
Principle and the embodiment of the present invention are set forth by individual example, and the explanation of above example is only intended to help and understands the present invention
Method and core concept；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, it is being embodied as
All will change in mode and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a waveguide device, it is characterised in that include that multiple waveguide unit, the plurality of waveguide unit stack gradually
With in column structure.
Waveguide device the most according to claim 1, it is characterised in that each described waveguide unit includes a straight wave guide
Managing two waveguide elbows identical with structure, described straight waveguide is identical with the Waveguide path length of said two waveguide elbow；
First end of said two waveguide elbow is close to the both sides of the first end of described straight waveguide, said two waveguide elbow respectively
The first end section and the first end section of described straight waveguide be generally aligned in the same plane, the first end of said two waveguide elbow cuts
First end section of face and described straight waveguide respectively forms an equivalently-sized rectangular waveguide mouth；Said two waveguide elbow
Second end is respectively towards the contrary each other and direction bending of the second end away from described straight waveguide；Said two waveguide elbow
Second end section of the second end section and described straight waveguide respectively connects a compressed drive, the second of said two waveguide elbow
End section connect compressed drive and described straight waveguide second end section connect compressed drive against and do not do mutually
Relate to；Described rectangular waveguide mouth on the plurality of waveguide unit arranges on the same line.
Waveguide device the most according to claim 2, it is characterised in that the plurality of waveguide unit include described directly
The described compressed drive that second end section of waveguide connects is located along the same line；And, the plurality of waveguide unit
Including the described compressed drive that connects of the second end section of identical each waveguide elbow of bending direction be positioned at same straight line
On.
Waveguide device the most according to claim 3, it is characterised in that the both sides of the first end of described straight waveguide are respectively
It is cut into the inclined-plane that the first end section to described straight waveguide tilts；The both sides of the first end of described waveguide elbow the most respectively by
It is whittled into the inclined-plane that the first end section to described waveguide elbow tilts；Wherein, the inclined-plane, both sides of the first end of described straight waveguide
It is close to the inclined-plane, side of the first end of said two waveguide elbow respectively.
Waveguide device the most according to claim 4, it is characterised in that described straight waveguide is by symmetrical straight wave guide
Lid and the hollow waveguide of straight wave guide lower cover synthesis, and the both sides of described straight wave guide upper cover and described straight wave guide lower cover are by solid
Locking member is fixed；Fixing hole it is formed with, shape in the second end section of described straight waveguide in first end section of described straight waveguide
Becoming to have compressed drive connecting hole, the second end section of described straight waveguide is by described compressed drive connecting hole and described pressure
Contracting driver connects, and the second end section of described straight waveguide forms a circular waveguide mouth, described circular waveguide mouth and institute
The sound wave delivery outlet of the described compressed drive stating the second end section connection of straight waveguide matches.
Waveguide device the most according to claim 5, it is characterised in that described waveguide elbow is by symmetrical waveguide bend
Lid and the hollow waveguide of waveguide bend lower cover synthesis, and the both sides of described waveguide bend upper cover and described waveguide bend lower cover are by solid
Locking member is fixed；Fixing hole it is formed with, shape in the second end section of described waveguide elbow in first end section of described waveguide elbow
Becoming to have compressed drive connecting hole, the second end section of described waveguide elbow is by described compressed drive connecting hole and described pressure
Contracting driver connects, and the second end section of described waveguide elbow forms a circular waveguide mouth, described circular waveguide mouth and institute
The sound wave delivery outlet of the described compressed drive stating the second end section connection of waveguide elbow matches.
Waveguide device the most according to claim 5, it is characterised in that described straight waveguide is I type waveguide, described curved
Waveguide is J-type waveguide.
Waveguide device the most according to claim 7, it is characterised in that each described compressed drive connects one respectively
Power amplifier；All of described power amplifier connects digital signal processor DSP.
9. according to the waveguide device described in any one of claim 2～8, it is characterised in that arrangement on the same line appoint
The centre distance anticipated between two adjacent described rectangular waveguide mouths is less than or equal to the ripple of highest frequency in operating frequency range
Long half.
Waveguide device the most according to claim 9, it is characterised in that after the plurality of waveguide unit stacks gradually
Length more than or equal to the half of the wavelength of low-limit frequency in described operating frequency range；The area of described rectangular waveguide mouth it
With the first end section occupied area at least equal to the first end section of described straight waveguide and described waveguide elbow 80%.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900593A (en) * | 1995-07-31 | 1999-05-04 | Adamson; Alan Brock | Loudspeaker system |
| CN1496552A (en) * | 2001-01-11 | 2004-05-12 | 梅尔录音实验室公司 | Manifold for horn loudspeaker |
| CN1666566A (en) * | 2002-07-09 | 2005-09-07 | 奥特兰诺塞利G&C公司 | Single and multiple reflection wave guide |
| CN201345726Y (en) * | 2008-12-31 | 2009-11-11 | 张祥奎 | High-frequency directivity control converter for acoustic irradiation |
| GB201203950D0 (en) * | 2012-03-06 | 2012-04-18 | Hudson Mark A | New transducer arrangement for line source loudspeaker |
| CN103262569A (en) * | 2010-10-06 | 2013-08-21 | 伯斯有限公司 | Modular acoustic horns and horn arrays |
| CN103929693A (en) * | 2014-05-04 | 2014-07-16 | 赵春宁 | Sound wave transmitting device |
| CN105407431A (en) * | 2014-09-08 | 2016-03-16 | 艾德森系统工程公司 | Loudspeaker with improved directional behavior and reduction of acoustical interference |
| CN205984272U (en) * | 2016-08-11 | 2017-02-22 | 广州励丰文化科技股份有限公司 | Ripples pipe installation |
-
2016
- 2016-08-11 CN CN201610658238.2A patent/CN106098055A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5900593A (en) * | 1995-07-31 | 1999-05-04 | Adamson; Alan Brock | Loudspeaker system |
| CN1496552A (en) * | 2001-01-11 | 2004-05-12 | 梅尔录音实验室公司 | Manifold for horn loudspeaker |
| CN1666566A (en) * | 2002-07-09 | 2005-09-07 | 奥特兰诺塞利G&C公司 | Single and multiple reflection wave guide |
| US20050217927A1 (en) * | 2002-07-09 | 2005-10-06 | Guido Noselli | Single and multiple reflection wave guide |
| CN201345726Y (en) * | 2008-12-31 | 2009-11-11 | 张祥奎 | High-frequency directivity control converter for acoustic irradiation |
| CN103262569A (en) * | 2010-10-06 | 2013-08-21 | 伯斯有限公司 | Modular acoustic horns and horn arrays |
| GB201203950D0 (en) * | 2012-03-06 | 2012-04-18 | Hudson Mark A | New transducer arrangement for line source loudspeaker |
| CN103929693A (en) * | 2014-05-04 | 2014-07-16 | 赵春宁 | Sound wave transmitting device |
| CN105407431A (en) * | 2014-09-08 | 2016-03-16 | 艾德森系统工程公司 | Loudspeaker with improved directional behavior and reduction of acoustical interference |
| CN205984272U (en) * | 2016-08-11 | 2017-02-22 | 广州励丰文化科技股份有限公司 | Ripples pipe installation |
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