CN207427461U - It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly to bugle array - Google Patents
It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly to bugle array Download PDFInfo
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- CN207427461U CN207427461U CN201721510251.XU CN201721510251U CN207427461U CN 207427461 U CN207427461 U CN 207427461U CN 201721510251 U CN201721510251 U CN 201721510251U CN 207427461 U CN207427461 U CN 207427461U
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Abstract
It is a kind of have it is horizontal all referring to the compression high pitch loudspeaker assembly to bugle array, including:High pitch loudspeaker, bugle array；It is characterized in that：Vibrating diaphragm is provided at the top of the high pitch loudspeaker, the vibrating diaphragm of high pitch loudspeaker is arranged on the center of bugle array, and the bugle array includes：Bugle lattice shelves, top plate, bottom plate；The vibrating diaphragm of high pitch loudspeaker is arranged between bugle array top plate and bottom plate, the bugle lattice shelves of bugle array are used to connect bugle array top plate and bottom plate, and the overall structure of bugle array is supported, larynx thiophene portion and throat portion is collectively formed inside the structure of the bugle array and the vibrating diaphragm of high pitch loudspeaker；Larynx thiophene portion is located at the junction of the top plate of bugle array, bottom plate and high pitch loudspeaker vibrating diaphragm, is gradually extended outwardly by larynx thiophene portion and the part in bugle array structure forms throat portion；When playing sound wave, sound wave is compressed sound wave by larynx thiophene portion after sending high pitch loudspeaker, is carrying out audio mixing to sound wave by throat portion, the direction that sound wave prolongs larynx thiophene portion to throat portion spreads through sex intercourse；High pitch loudspeaker assembly is transferred out again.
Description
Technical field
The utility model is related to the speaker design of electronic manufacturing field, have more particularly, to one kind horizontal all referring to bugle
The structure of the compression high pitch loudspeaker assembly of array.
Background technology
With the continuous progress of artificial intelligence technology, the paces of home intelligence are getting faster, smart home nature demand
One Intelligent housing maincenter and the role of artificial intelligence assistant, for linking up the demand of people and controlling smart home, association
It helps others and is linked up by network and third party, transaction etc..Interactive voice is the most direct easily interactive mode of the mankind, with intelligence
The breakthrough of interactive voice technology, due to the function that speaker products can be listened and said, what is be honored is selected to by each major company
The optimal entrance of artificial intelligence has born this role of Intelligent housing maincenter and intelligent assistant.Corresponding intelligent sound
Case product emerge rapidly in large numbersBamboo shoots after a spring rain as the existing market of jump, such as the Echo of Amazon, the Google Home of Google, the HomePad of apple are micro-
Soft Invoke etc. products.Also there is Jingdone district in the country, associates, the AI speakers of having produced such as millet.
For intelligent sound box with traditional speaker in acoustic angle, maximum difference is exactly intelligent sound box demand omnidirectional, the phase
Hope in the range of the horizontal 360-degree omnidirection of speaker there can be clear consistent sound wave transmission, convenient for people arbitrary position within the family
Good interactive experience can be carried out with intelligent sound box by putting.
Traditional omnidirectional speaker as shown in figures 2-3 generally faces upward or downward installation using direct radiator type high pitch
Application mode, for auditor in 90 ° of directions of off-axis of 10 vibrating diaphragm of loud speaker, this side up, and audio damping is serious, high in practical application
Frequency shows very poor；Or distribution is carried out using the mode of surrounding using multiple high pitchs or woofer (100,200,300,400) and is set
Meter forms multiple point sound source distributions, and on the arbitrary LisPos of speaker surrounding, multiple point sound sources to human ear have range difference, off-axis
Differential seat angle, therefore the sound wave that ear receives is caused the time difference, to form acoustic interference, generation harmonic distortion is different there are phase difference
The sound pressure deviations of position are very big, form highly non-uniform sound field, and so as to which tonequality muddiness is not clean enough, details obscures not enough exquisiteness,
Audition experience substantially reduces.Multiple high pitchs or woofer are used simultaneously, and cost is higher, and cost performance is relatively low.
Utility model content
A kind of designed by this technology has horizontal all referring to the compression high pitch loudspeaker assembly to bugle array, has height
The compression chamber of sound loud speaker assembly is let out sound mouth (throat portion) and is transmitted in the longitudinal of the vibrating diaphragm of high pitch loudspeaker assembly, uniformly
It is distributed in the range of 360 degree of diaphragm surrounding；The entrance in throat portion can form trapezoidal, close top dome wider close to equatorial positions
Position is relatively narrow, and the upper lower surface camber of passage refers to several type curves, can limit the directive property angle up and down of acoustic irradiation.Let out sound passage
Through simulating, verifying, sound channel number is let out in 6/8/12 quantity, can obtain preferable radiation efficiency bandwidth product；It is tested by emulation
Card, vibrating diaphragm area and when letting out the ratio between sound open area between 5-15, radiation efficiency variation is little, but as compression ratio raises, effect
Rate bandwidth product can increase.
In order to solve the above technical problems, the utility model is realized by following scheme：
It is a kind of have it is horizontal all referring to the compression high pitch loudspeaker assembly to bugle array, including:High pitch loudspeaker, bugle
Array；It is characterized in that：Vibrating diaphragm is provided at the top of the high pitch loudspeaker, the vibrating diaphragm of high pitch loudspeaker is arranged on bugle array
Center, the bugle array include：Bugle lattice shelves, top plate, bottom plate；The vibrating diaphragm of high pitch loudspeaker be arranged on bugle array top plate and
Between bottom plate, the bugle lattice shelves of bugle array support the whole knot of bugle array for connecting bugle array top plate and bottom plate
It is collectively formed inside structure, the structure of the bugle array and the vibrating diaphragm of high pitch loudspeaker and lets out sound passage, letting out sound passage includes larynx thiophene
Portion and throat portion；Larynx thiophene portion is located at the junction of the top plate of bugle array, bottom plate and high pitch loudspeaker vibrating diaphragm, gradual by larynx thiophene portion
Extend outwardly and the part in bugle array structure forms throat portion；When playing sound wave, sound wave is sent high pitch loudspeaker
Sound wave is compressed by larynx thiophene portion afterwards, audio mixing is being carried out to sound wave by throat portion, sound wave prolongs larynx thiophene portion to throat portion
Direction spreads through sex intercourse；High pitch loudspeaker assembly is transferred out again.
Preferably, bugle lattice gear is provided between the top plate and bottom plate of the bugle array；Bugle lattice gear is one or more
A, bugle array even partition is let out sound passage and multiple larynx thiophene portions and throat by multiple bugle lattice gears, top plate, bottom plate to be multiple
Portion；The vibrating diaphragm of the bugle array top plate inner hub location and high pitch loudspeaker is connected, in the top plate of bugle array
The structure of the contact surface of portion center and the diaphragm position of high pitch loudspeaker is in mating connection；Inside the bugle array top plate
It is designed for smooth curved surface, the section inside bugle array top plate is concave structure, is characterized as the top plate intermediate structure of bugle array
It is low gradually outwards to gradually rise, opening is provided in the middle part of the bottom plate of the bugle array, the vibrating diaphragm of high pitch loudspeaker is worn completely
It crosses the opening to be placed in the middle part of bugle array, bugle array base plate interior surface gradually extends to outside and is provided with one section of circle
Curved surface is slided, larynx thiophene portion and throat portion is collectively formed inside the structure of such bugle array and the vibrating diaphragm of high pitch loudspeaker, by larynx thiophene
Portion is gradual widened structure to throat portion, and so design spreads through sex intercourse beneficial to the direction of sound wave.
Preferably, the section of the bugle array top plate is designed for anti-plektron, and inside is that more curved surfaces prolong with outer surface
Structure is stretched, interior surface structure is focused on to roof center, and exterior surface configuration is focused on to roof center.
Preferably, the bugle lattice gear of the bugle array and bugle array top plate and bottom plate be vertically arranged, it is vertical
The section of setting is designed for anti-plektron, and prolongs bugle array center and be outwards gradually reduced, and makes the entrance in throat portion can be formed in ladder
Shape, throat portion is wider close to the equatorial positions of bugle array, and larynx thiophene portion is relatively narrow close to the center of bugle array, such to set
Meter can effectively improve sound wave by larynx thiophene portion to throat portion transmit when expansion effect.
Preferably, the high pitch loudspeaker includes:Vibrating diaphragm, electromagnetic coil, high pitch stent, washer piece, magnetic sheet, gasket；It is high
Sound diaphragm of loudspeaker lower end is provided with electromagnetic coil, high pitch stent, washer piece, magnetic sheet, the combining structure of gasket, and passes through multiple
Terminal is fixed on pedestal.
Description of the drawings
Fig. 1 is the schematic diagram 1 of this technology；
Fig. 2 is the schematic diagram 1 of traditional technology；
Fig. 3 is the schematic diagram 2 of traditional technology；
Fig. 4 is the schematic diagram 2 of this technology；
Fig. 5 is the schematic diagram 3 of this technology；
Fig. 6 is the schematic diagram 4 of this technology.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing 1,4-6 and
The utility model is further elaborated in embodiment.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
It is a kind of have it is horizontal all referring to the compression high pitch loudspeaker assembly to bugle array, including:High pitch loudspeaker 2, number
Angle array 1；It is characterized in that：Vibrating diaphragm 21, the No. of being arranged on 21 of vibrating diaphragm of high pitch loudspeaker are provided at the top of the high pitch loudspeaker
The center of angle array 1, the bugle array 1 include：Bugle lattice shelves 3, top plate 11, bottom plate 12；The vibrating diaphragm 21 of high pitch loudspeaker is set
It puts between the top plate 11 of bugle array 1 and bottom plate 12, the bugle lattice shelves 3 of bugle array 1 are used to connect bugle array top plate 11
With bottom plate 12, and support the overall structure of bugle array 1, the structure of the bugle array 1 in the vibrating diaphragm 21 of high pitch loudspeaker 2
Portion, which is collectively formed, lets out sound passage 5, and letting out sound passage 5 includes larynx thiophene portion and throat portion；Larynx thiophene portion be located at bugle array 1 top plate 11,
The junction of bottom plate 12 and high pitch loudspeaker vibrating diaphragm 21 is gradually extended outwardly by larynx thiophene portion and in 1 structure of bugle array
Part forms throat portion；When playing sound wave, sound wave is compressed sound wave by larynx thiophene portion after sending high pitch loudspeaker 2,
Audio mixing is carried out to sound wave by throat portion, the direction that sound wave prolongs larynx thiophene portion to throat portion spreads through sex intercourse；Tweeter is transferred out again
Device assembly.
Preferably, bugle lattice gear 3 is provided between the top plate 11 of the bugle array 1 and bottom plate 12；Bugle lattice gear 3 is one
A or multiple, 1 even partition of bugle array is multiple sound passages 5 and multiple let out by multiple bugle lattice gear 3, top plate 11, bottom plate 12
Larynx thiophene portion and throat portion；Sound passage 5 is let out through simulating, verifying, the number of sound passage 5 is let out in 6/8/12 quantity, can obtain preferably
Radiation efficiency bandwidth product；The vibrating diaphragm 21 of 1 top plate of bugle array, 11 inner hub location and high pitch loudspeaker 2 is connected,
The contact surface of 11 inner hub location of top plate of its bugle array 11 is engaged with the structure of 21 position of vibrating diaphragm of high pitch loudspeaker 2
Connection；1 top plate of bugle array, 11 interior surface 111 designs for smooth curved surface, and the section inside 1 top plate 1 of bugle array is
Concave structure, be characterized as bugle array 11 intermediate structure of top plate it is low gradually outwards and gradually rise, the bottom of the bugle array 1
12 middle part of plate is provided with opening, and the vibrating diaphragm 21 of high pitch loudspeaker 1 passes completely through the opening and is placed on 1 middle part of bugle array,
1 bottom plate of bugle array, 12 interior surface 121 gradually extends to outside and is provided with one section of smooth curved surface, such bugle array 1
Structure is gradually expansion from larynx thiophene portion to throat portion with larynx thiophene portion and throat portion is collectively formed inside the vibrating diaphragm 21 of high pitch loudspeaker 1
Big structure, so design spread through sex intercourse beneficial to the direction of sound wave.
Preferably, the section of 1 top plate 11 of bugle array is designed for anti-plektron, and interior surface 111 and outer surface are equal
For more surface extending structures, centre focus of 111 structure of interior surface to top plate 11, exterior surface configuration extends to roof center
Line focus.
Preferably, the bugle array 1 bugle lattice gear 2 and bugle array 1 top plate 11 and bottom plate 12 be vertically arranged,
Its vertically disposed section is designed for anti-plektron, and prolongs bugle array center and be outwards gradually reduced, and makes the entrance in throat portion can shape
Into trapezoidal, throat portion is wider close to the equatorial positions of bugle array, and larynx thiophene portion is relatively narrow close to the center of bugle array, this
The design of sample can effectively improve sound wave by larynx thiophene portion to throat portion transmit when expansion effect.
Preferably, the high pitch loudspeaker 1 includes:Vibrating diaphragm 21, electromagnetic coil 22, high pitch stent 23, washer piece 24, magnetic sheet
25th, gasket 26；21 lower end of vibrating diaphragm of high pitch loudspeaker 2 be provided with electromagnetic coil 22, high pitch stent 23, washer piece 24, magnetic sheet 25,
The combining structure of gasket, and pass through multiple terminals and be fixed on pedestal.
The entrance for letting out sound passage is in narrow trapezoidal, and wider close to equatorial positions, close top dome position is relatively narrow.It is narrow trapezoidal to let out sound mouth
It is uniformly distributed along hemisphere warp direction, can effectively correct the phase of each radiative acoustic wave on vibrating diaphragm.Let out the quantity point of sound mouth
Cloth can influence the bandwidth of radiative acoustic wave.
The upper lower surface camber for letting out sound passage refers to several type curves, can limit the directive property angle up and down of acoustic irradiation.Passage
The curved surface of the left and right sides be not standard curved surface, be the curved surface of gradual change.The outlet for letting out sound passage is rectangle.It is closer on vibrating diaphragm
The sound wave of the point radiation of top dome position and the distance for letting out sound mouth are nearer, and the point closer to equatorial positions is got over letting out sound mouth distance
Far, the phase difference that sound wave can be caused to transfer originally, but close to top dome position to separate out mouthful wave surface distant for bugle passage, leans on
It is closer to the distance that nearly equatorial positions separate out mouthful wave surface, by design of Simulation, can play adjustment vibrating diaphragm top dome and half-sphere positions spoke
The phase of sound wave is penetrated, in the wave surface of outlet, reaches more stable consistent same phase sound wave.
The quantity of bugle array depends at 2 points：
1, this high pitch size can be according to using the size of speaker to be adjusted, and high pitch overall dimensions are larger
When, bugle array quantity can increase, and when overall dimensions are smaller, bugle array quantity can be reduced.
2, bugle array or so curved surface angle determines the directional properties at odd numbers angle, and more bugle arrays will consider adjacent bugle
The acoustic interference problem of radiative acoustic wave.
The innovation of this technology high pitch loudspeaker assembly is the direct radiator type high pitch conventional domestic field of audio
The Principles of Acoustics of loud speaker and the directional type bugle compressible drive head in professional stereo of stage field have carried out advantage integration, using lotus
The radial bugle array structure of fancy, in the contraction Field that sound wave is formed by larynx thiophene portion and throat portion, the arc on compressed field surface
Facing external free field is propagated, and realizes better tonequality and audio.
The utility model high pitch loudspeaker assembly technical characteristic is as follows：
A, in terms of directional properties.
Common direct-radiator speaker is that sound wave is radiated to forward direction in front of vibrating diaphragm, and Acoustic Wave Propagation is spread in heart-shaped.
Directional type bugle compressible drive head is that sound wave is radiated to forward direction in front of vibrating diaphragm, by bugle restriction after sound wave compression convergence
Angle directed radiation.
The utility model high pitch loudspeaker assembly is that sound wave is radiated to 360 degree of directions of vibrating diaphragm surrounding, and front sound wave is pressed
It is reduced to surrounding.
B lets out sound passage on Ordinary Compression driving head throat taps, is to unofficial biography on the latitude direction of high pitch loudspeaker vibrating diaphragm
It send, beam of sound is converged to aditus laryngis by the equidistant passage of annular；
The compression chamber of the utility model high pitch loudspeaker assembly lets out sound mouth in the longitudinal of vibrating diaphragm, and by multistage
It is evenly distributed in the range of 360 degree of diaphragm surrounding.
C, it is uniformly distributed in 360 degree on ball type vibration membrane to let out the combination that sound passage is phase throat taps and bugle function.Let out sound mouth
Entrance it is trapezoidal, close to equatorial positions it is wider, close to top dome position it is relatively narrow.The upper lower surface camber of passage refers to several type curves, can
To limit the directive property angle up and down of acoustic irradiation.The curved surface of the left and right sides of passage is not standard curved surface, is the curved surface of gradual change.
The outlet of sound passage is rectangle.This is by design of Simulation for trapezoidal entrance and the curved surface of gradual change, can play adjustment and shake
The phase of film top dome and half-sphere positions radiative acoustic wave in the wave surface of outlet, reaches more stable consistent same phase sound wave.
D through simulating, verifying, lets out sound channel number in 6/8/12 quantity, can obtain preferable radiation efficiency bandwidth product.Even
Continuous bugle array structure covers 360 degree of horizontal extent, in horizontal 360-degree, form up and down in the range of ± 30 degree it is uniform surely
Fixed high frequency sound field.
E, when radiation impedance matches close with load impedance, radiation efficiency reaches highest.Too low or high efficiency excessively can all drop
It is low.
F, by simulating, verifying, vibrating diaphragm area and when letting out the ratio between sound open area between 5-15, radiation efficiency variation is little,
But as compression ratio raises, efficiency-bandwidth prodnct can increase.
G, the vibrating diaphragm of the utility model high pitch loudspeaker assembly should select lightweight hard sphere top vibrating diaphragm, such as titanium film, aluminium film,
Beryllium film.Be not suitable for the soft material of selection, such as cortina, the material of PEI, MYLAR.The vibrating diaphragm one of common direct radiator type high pitch
As all ring can be not required with soft material ring, the high pitch loudspeaker assembly of the utility model.This is because compression chamber internal vibration
Need vibrating diaphragm that there is the mode of oscillation of more uniform stabilization, diaphagras easily occurs for flexible material vibrating diaphragm；Top dome is bonded with ring
Technique is also that easy deviation causes to vibrate unbalanced, diaphragm vibration mode distortion.
The high pitch loudspeaker assembly of the utility model primarily directed to current intelligent sound box demand and utility model, it is main
There is following advantageous effect：Solves the defects of universal high frequency performance of the intelligent sound box occurred currently on the market is poor.Certainly
It can also be applied in the product type of the horizontal omnidirectional characteristic of other needs.Using 12 continuous bugle array junctions of lotus flower
Structure covers 360 degree of horizontal extent, in horizontal 360-degree, it is ± 30 degree upper and lower in the range of form uniform and stable high frequency sound field.This
It is a current conventional speaker application effect difficult to realize.
This utility model high pitch loudspeaker assembly manufacturing process is simple, and cost is with common direct radiator type high pitch loudspeaker phase
Than slightly expensive, but than two or more high pitch loudspeakers is used to go, the application mode for promoting high frequency performance is cheap, and sexual valence is higher,
It can be commonly used.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model creation, all
All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this practicality
Within new protection domain.
Claims (5)
1. it is a kind of have it is horizontal all referring to the compression high pitch loudspeaker assembly to bugle array, including:High pitch loudspeaker, bugle battle array
Row；It is characterized in that：Vibrating diaphragm is provided at the top of the high pitch loudspeaker, the vibrating diaphragm of high pitch loudspeaker is arranged in bugle array
Centre, the bugle array include：Bugle lattice shelves, top plate, bottom plate；The vibrating diaphragm of high pitch loudspeaker is arranged on bugle array top plate and bottom
Between plate, the bugle lattice shelves of bugle array support the overall structure of bugle array for connecting bugle array top plate and bottom plate,
Be collectively formed inside the structure of the bugle array and the vibrating diaphragm of high pitch loudspeaker and let out sound passage, let out sound passage include larynx thiophene portion and
Throat portion；Larynx thiophene portion is located at the junction of the top plate of bugle array, bottom plate and high pitch loudspeaker vibrating diaphragm, gradually outside by larynx thiophene portion
Extension and the part formation throat portion in bugle array structure；When playing sound wave, sound wave passes through high pitch loudspeaker after sending
It crosses larynx thiophene portion to be compressed sound wave, audio mixing is being carried out to sound wave by throat portion, sound wave prolongs larynx thiophene portion to the direction in throat portion
It spreads through sex intercourse；High pitch loudspeaker assembly is transferred out again.
2. a kind of as described in claim 1 have level all referring to the compression high pitch loudspeaker assembly to bugle array, special
Sign is：Bugle lattice gear is provided between the top plate and bottom plate of the bugle array；Bugle lattice gear for one or more, multiple numbers
Bugle array even partition is let out sound passage and multiple larynx thiophene portions and throat portion by angle lattice gear, top plate, bottom plate to be multiple；The bugle
The vibrating diaphragm of array top plate inner hub location and high pitch loudspeaker is connected, the top plate inner hub location of bugle array
The structure of the diaphragm position of contact surface and high pitch loudspeaker is in mating connection；It is set inside the bugle array top plate for smooth curved surface
Meter, the section inside bugle array top plate is concave structure, be characterized as bugle array top plate intermediate structure it is low gradually outwards by
Edge up height, is provided with opening in the middle part of the bottom plate of the bugle array, the vibrating diaphragm of high pitch loudspeaker passes completely through the opening and put
It puts in the middle part of bugle array, bugle array base plate interior surface gradually extends to outside and is provided with one section of smooth curved surface, so
Larynx thiophene portion and throat portion is collectively formed inside the structure of bugle array and the vibrating diaphragm of high pitch loudspeaker, is from larynx thiophene portion to throat portion
Gradual widened structure, so design spread through sex intercourse beneficial to the direction of sound wave.
3. a kind of as described in claim 1 have level all referring to the compression high pitch loudspeaker assembly to bugle array, special
Sign is：The section of the bugle array top plate is designed for anti-plektron, and internal and outer surface is more surface extending structures, interior
Portion's surface texture is focused on to roof center, and exterior surface configuration is focused on to roof center.
4. a kind of as described in claim 1 have level all referring to the compression high pitch loudspeaker assembly to bugle array, special
Sign is：The bugle array bugle lattice gear and bugle array top plate and bottom plate be vertically arranged, vertically disposed section
Face is designed for anti-plektron, and prolongs bugle array center and be outwards gradually reduced, and makes the entrance in throat portion can form trapezoidal, throat portion
Equatorial positions close to bugle array are wider, and larynx thiophene portion is relatively narrow close to the center of bugle array, and such design can be effective
Improve sound wave by larynx thiophene portion to throat portion transmit when expansion effect.
5. a kind of as described in claim 1 have level all referring to the compression high pitch loudspeaker assembly to bugle array, special
Sign is：The high pitch loudspeaker includes:Vibrating diaphragm, electromagnetic coil, high pitch stent, washer piece, magnetic sheet, gasket；High pitch loudspeaker
Vibrating diaphragm lower end is provided with electromagnetic coil, high pitch stent, washer piece, magnetic sheet, the combining structure of gasket, and passes through multiple terminals and fix
On pedestal, the vibrating diaphragm of the high pitch loudspeaker is lightweight hard sphere top vibrating diaphragm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510251.XU CN207427461U (en) | 2017-11-14 | 2017-11-14 | It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly to bugle array |
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|---|---|---|---|
| CN201721510251.XU CN207427461U (en) | 2017-11-14 | 2017-11-14 | It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly to bugle array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708043A (en) * | 2017-11-14 | 2018-02-16 | 深圳东原电子有限公司 | It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly and operation principle to bugle array |
| CN107708043B (en) * | 2017-11-14 | 2024-05-24 | 深圳东原电子有限公司 | Compression type tweeter assembly with horizontal all-directional horn array and working principle |
-
2017
- 2017-11-14 CN CN201721510251.XU patent/CN207427461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708043A (en) * | 2017-11-14 | 2018-02-16 | 深圳东原电子有限公司 | It is a kind of that there is level all referring to the compression high pitch loudspeaker assembly and operation principle to bugle array |
| CN107708043B (en) * | 2017-11-14 | 2024-05-24 | 深圳东原电子有限公司 | Compression type tweeter assembly with horizontal all-directional horn array and working principle |
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