CN206908842U - sound-producing device - Google Patents
sound-producing device Download PDFInfo
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- CN206908842U CN206908842U CN201720768978.1U CN201720768978U CN206908842U CN 206908842 U CN206908842 U CN 206908842U CN 201720768978 U CN201720768978 U CN 201720768978U CN 206908842 U CN206908842 U CN 206908842U
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- loudspeaker
- housing
- sound
- leading note
- backwards
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Abstract
The utility model provides a kind of sound-producing device, including at least two loudspeakers, and it can be the combination of two or more any loudspeaker in tweeter, mid frequency ludspeaker, middle/high frequency loudspeaker or woofer；Loudspeaker is arranged on housing, just the outside facing to housing, and the back side is towards the inside of housing；At least one sender is offered on housing between each loudspeaker；On the inwall of housing, it is provided with each sender preset range backwards to leading note plate, one end is fixedly connected with the inwall of housing, the other end is free end, to guide being passed backwards to sound wave along the bearing of trend backwards to leading note plate to the free end that moving backwards and bypassing leading note plate backwards of loudspeaker by sender for loudspeaker.
Description
Technical field
It the utility model is related to technical field of acoustics, more particularly to a kind of sound-producing device.
Background technology
In modern audio amplifier, in order to give full play to the acoustic performance of each frequency range in source of sound, one can be set in audio amplifier
Kind frequency dividing circuit device, abbreviation frequency divider, the audio signal of input is separated into the different pieces such as high pitch, middle pitch, bass,
Then it is respectively fed in corresponding high, medium and low sound loudspeaker, makes high, medium and low sound loudspeaker that setting is met into its own frequency range model
The sound enclosed is discharged.It can be seen that discharging the different requirements of sound to adapt to high, medium and low sound loudspeaker, then frequency divider is needed
Accurate frequency range division is carried out to match the optimal playback frequency range of high, medium and low sound loudspeaker to former message breath.But according to it is high,
In, the characteristic of the electroacoustic performance of woofer and frequency divider itself, the difficulty precisely matched for part-frequency point is very big；This
Outside, frequency divider ceases according to part-frequency point to former message carries out frequency partition, has broken former message breath, destroys the complete of former message breath
Property；The presence of above mentioned problem so that reappeared using extremely difficult realize of the audio amplifier of frequency divider to the high-fidelity of former message breath and its tonequality.
But based on the architectural feature of traditional audio amplifier, if not using frequency divider, high, medium and low sound loudspeaker is resetting the complete of former message number
During frequency information can overall sound quality interfering with each other and deteriorating audio amplifier, or even can because receive be not itself best effort frequency range sound
Frequency signal and cause the damage to loudspeaker itself.Therefore, whether can all be run into using frequency divider in modern loudspeaker box
It is difficult to the difficulty overcome.
The content of the invention
The utility model provides a kind of sound-producing device, and the sound-producing device does not use frequency divider, and high, medium and low band loudspeaker is equal
Receive the full range information of former message number；By the high, medium and low sound loudspeaker of its special architectural feature not only can perfection release
The sound of respective optimum frequency band is put, balanced system can also be formed after fully merging each other for the sound of non-optimum frequency band each other
One full frequency band sound wave is simultaneously completely discharged, it is achieved thereby that in the case of not carrying out destructive frequency dividing to former message breath, it is complete
U.S. discharges the acoustic information of high, medium and low each frequency range of former message number.
The utility model provides a kind of sound-producing device, including：
At least two loudspeakers；At least two loudspeaker is tweeter, mid frequency ludspeaker, medium-high frequency are raised one's voice
The combination of two or more any loudspeaker in device or woofer；
The loudspeaker is arranged on the housing of the sound-producing device, the loudspeaker just facing to the outer of the housing
Portion, the back side of the loudspeaker is towards the inside of the housing；
At least one sender is offered on the housing between each loudspeaker；
On the inwall of the housing, it is provided with each sender preset range of distance backwards to leading note plate；
Described one end backwards to leading note plate is fixedly connected with the inwall of the housing, and the other end backwards to leading note plate is
Free end, to guide the back of the body of the sound wave backwards of the loudspeaker along the bearing of trend backwards to leading note plate to the loudspeaker
Passed to mobile and around the leading note plate backwards the free end by the sender.
Optionally, between each leading note plate backwards and on the inwall of the housing relative with the leading note plate backwards,
To leading note plate before being provided with；
One end of the forward direction leading note plate is fixedly connected with the inwall of the housing, and the other end is free end；
Point to the sender in the free end of the forward direction leading note plate.
Optionally, the center of the sender is pointed in the free end of the forward direction leading note plate.
Optionally, the free end backwards to the free end of leading note plate, and/or the forward direction leading note plate is arc-shaped.
Optionally, described device also includes：Leading note block；The leading note block has inner concave arc surface；The leading note block is arranged at
Each edge of the inwall of the housing, and the shape of the leading note block matches with each corner of the inwall.
Optionally, the housing is polyhedron.
Optionally, the housing is spheroid, ellipsoid, or, the inwall of the housing is curved surface, outer wall is polyhedral
Housing.
Optionally, the sounding power of each loudspeaker matches each other.
Optionally, the impedance of each loudspeaker matches each other.
Optionally, the sound-producing device is audio amplifier, earphone or musical instrument.
Sound-producing device of the present utility model, including at least two loudspeakers；At least two loudspeaker can be raised for high frequency
The combination of two or more any loudspeaker in sound device, mid frequency ludspeaker, middle/high frequency loudspeaker or woofer；
Loudspeaker is arranged on the housing of sound-producing device, loudspeaker just facing to the outside of housing, the back side of loudspeaker is towards housing
Inside；At least one sender is offered on housing between each loudspeaker；On the inwall of housing, distance each goes out
It is provided with sound hole preset range backwards to leading note plate；It is fixedly connected backwards to one end of leading note plate with the inwall of housing, backwards to leading note
The other end of plate is free end, to guide the back of the body of the sound wave backwards of loudspeaker along the bearing of trend backwards to leading note plate to loudspeaker
Passed to mobile and around leading note plate backwards free end by sender.The distinctive structure make it that high, medium and low band loudspeaker can
To receive the former message of identical full frequency band breath, and high, medium and low band loudspeaker can play the best efficiency of itself and discharge it
Most it is good at the operating efficiency of frequency range；Though the frequency range that each loudspeaker is each good at has difference, and the synchronization that it is discharged is the same as frequency
After former sound sound signal backwards to the guiding of leading note plate in housing via merging, the information of former sound can be completely retained；Meanwhile
The structure make it that loudspeaker is positive and sound wave backwards can be released, and strengthens the sounding energy and efficiency of loudspeaker, improves
The acoustical behavior of loudspeaker.
Brief description of the drawings
Fig. 1 is the structural representation of the sound-producing device shown in the exemplary embodiment of the utility model one；
Fig. 2 is the structural representation of the sound-producing device shown in the utility model another exemplary embodiment；
Fig. 3 is the structural representation of the sound-producing device shown in the utility model another exemplary embodiment.
Description of reference numerals：
Loudspeaker 1, the front 11 of loudspeaker, the back side 12 of loudspeaker, housing 2, sender 3, the center of sender
31st, backwards to leading note plate 4, backwards to one end 41 of leading note plate, backwards to the free end 42 of leading note plate, forward direction leading note plate 5, forward direction leading note plate
One end 51, the free end 52 of forward direction leading note plate, leading note block 6, inner concave arc surface 61.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described.It should be noted that attached
In figure or specification, similar or identical element all uses identical reference.
Fig. 1 is the structural representation of the sound-producing device shown in the exemplary embodiment of the utility model one, as shown in figure 1, this
Utility model provides a kind of sound-producing device, including：At least two loudspeakers 1；At least two loudspeakers 1 be tweeter, in
The combination of two or more any loudspeaker in band loudspeaker, middle/high frequency loudspeaker or woofer；Loudspeaker 1
It is arranged on the housing 2 of sound-producing device, the front 11 of loudspeaker is towards the outside of housing 2, and the back side 12 of loudspeaker is towards housing 2
Inside；At least one sender 3 is offered on housing 2 between each loudspeaker 1；On the inwall of housing, distance is every
It is provided with the individual preset range of sender 3 backwards to leading note plate 4；It is fixedly connected backwards to one end 41 of leading note plate with the inwall of housing 2,
The other end backwards to leading note plate is free end 42, to guide the sound wave backwards of loudspeaker 1 along the bearing of trend backwards to leading note plate 4
Passed to loudspeaker 1 backwards to mobile and around leading note plate backwards free end 42 by sender 3.
It should be noted that the sound-producing device in the utility model can apply to structure described by the utility model
Any sound-producing device in, for example, in independent audio amplifier, terminal integrate sound-producing device (audio amplifier or loudspeaker), earphone, Xia Shushi
The structure example in example all with audio amplifier is applied to illustrate.Specifically, the diaphragm of loudspeaker when vibrating respectively to positive with the back of the body
To sound wave is sent, this two-way acoustic wave " phase " is opposite.So-called " phase " is conversely any moment of diaphragm oscillations displacement, above-mentioned double
Cancelled each other out just to the waveform of sound wave, so as to cause vibrating diaphragm two-way acoustic wave that " short circuit " phenomenon occurs in the air.Naked loudspeaker
Sound is often shrivelled, overcautious, narrow, and here it is the concrete embodiment of sound " short circuit ".And the birth of audio amplifier, its essence are to play
The efficiency of loudspeaker, it is theoretical that design principle is based on " infinite baffle ", i.e. by the diaphragm of loudspeaker it is positive with backwards to sound wave each other every
Absolutely, its theoretical model is positive and between sound wave place a piece of infinite baffle in the diaphragm of loudspeaker, using positive sound wave, every
Brokeback is to sound wave.But infinitely great baffle has no the possibility of practicality, then enters infinite baffle backwards to sound wave direction to loudspeaker
Row convolution forms a confined space, and here it is the theoretical foundation of modern audio amplifier design.
Modern audio amplifier is roughly divided into three classes, closed box, bass reflex type, transmission wire type；It is closed box to pass through confined air
Between completely isolation loudspeaker backwards to sound wave propagation；Bass reflex type (being called inverted phase type) audio amplifier is backwards to sound wave using loudspeaker
The wave of oscillation is formed in the multipath reflection of cabinet wall, and by the resonance effect of phase-reversing tube to strengthen the bass effect of audio amplifier.
But if loudspeaker is full frequency speaker, it is backwards to the sound wave that sound wave should be also full range, but this work of phase inverted cabinet
To make mode but to inhibit backwards to sound wave, and resonance wave output will be converted to backwards to sound wave, it only highlights low-frequency sound wave, and
The integrality that audio signal is carried backwards to sound wave is destroyed simultaneously；Transmission wire type is called labyrinth type audio amplifier, by audio amplifier
Set a bore constantly to reduce and fill the tortuous passageway of sound-absorbing thing, constantly slacken energy of the loudspeaker backwards to sound wave, so as to
Obtain preferable LF-response.It can be seen that no matter the design of any audio amplifier, be all based on the diaphragm of loudspeaker backwards to acoustic energy shielding or
Suppress loudspeaker backwards to sound wave, therefore there is the electroacoustic energy conversion efficiency of loudspeaker it is low the problem of.During speaker operation,
Vibrating diaphragm equably sends sound wave energy forward, backward, and theoretical according to infinite baffle, and positive sound wave is effective energy, and backwards to sound
Ripple is invalid harmful energy, and positive sound wave can utilize, and must then be suppressed backwards to sound wave.Theoretically infer, the electricity of audio amplifier
Sound conversion efficiency can not possibly be more than 50%.For reality, the electro-acoustic conversion efficiency of rare audio amplifier can reach 20%.Electroacoustic turns
It is that narrow Hz-KHz, frequency response and signals revivification are inferior to change the low direct performance of efficiency.
However, the technology prejudice of the utility model abandoning tradition, by structure design by loudspeaker backwards to sound wave as far as possible
Being used from cover to cover, and cause the positive sound wave of loudspeaker and sound wave interaction backwards, be combined into one, so as to be formed
Extremely fine full range sound particle, surpasses comprehensively in the high-fidelity indexs such as sound-reducing degree, sound field validity and drawing sense
More traditional audio amplifier design.Exactly because also of the present utility model this release using backwards to sound wave and merge it with positive sound wave
The structure design put so that high, medium and low frequency audio amplifier can receive the former sound signal of full range, for being not belonging to itself best effort
The audio frequency vibration wave of frequency range can be merged in housing 2 in the form of backwards to sound wave and together discharged from sender 3.Specifically
, the concrete structure of the sound-producing device shown in the utility model Fig. 1 is to include：Multiple loudspeakers 1, for example, it can include one
Individual tweeter, a mid frequency ludspeaker, a woofer；Can also include a middle/high frequency loudspeaker, one it is low
Band loudspeaker；It can also include according to demand, the combination of any number of high, medium and low band loudspeaker.Bag is illustrated that in Fig. 1
The example of two loudspeakers 1 is contained, the loudspeaker 1 of top can be middle/high frequency loudspeaker, and the loudspeaker 1 of lower section can be low frequency
Loudspeaker.As shown in figure 1, two loudspeakers 1 are arranged on housing 2, the front 11 of loudspeaker is raised one's voice towards the outside of housing 2
The back side 12 of device is towards the inside of housing 2；It should be noted that the shape and structure of the sound-producing device shown in Fig. 1 is merely illustrative, this
Embodiment does not make specific restriction to the shape of housing 2, and it can be arbitrary shape.Sender 3 is arranged on two and raised one's voice
Between device 1；It is respectively arranged with preset range around sender 3 backwards to (the preset range a in such as figure and default of leading note plate 4
Shown in scope b), it is each can be with equal backwards to the distance between leading note plate 4 and sender 3, i.e. a=b；Can also unequal a ≠
b；Wherein a and b distance value can be by those skilled in the art according to loudspeaker sounding power, shape facility of sender 3 etc.
Determined after considering, the application is not especially limited to this pre-determined distance.Backwards to one end 41 of leading note plate and the inwall of housing 2
It is fixedly connected, the other end backwards to leading note plate is free end 42；Sound wave in Fig. 1 moves towards arrow and shows loudspeaker 1 backwards
The trend of sound wave, it can be seen that the back side 12 of loudspeaker sent backwards to sound wave along backwards to leading note plate 4 bearing of trend to
The movement backwards of loudspeaker 1 is simultaneously bypassed backwards to the free end 42 of leading note plate, finally by being passed in sender 3.It can be seen that this is distinctive
Structure allows each loudspeaker of high, medium and low frequency in sound-producing device to receive the former message breath of identical full frequency band simultaneously, respectively
What the loudspeaker of individual frequency range was sent includes itself best effort frequency range and the non-audio signal for being good at working frequency range in housing 2
Fusion, it is released from sender 3 and is raised one's voice with each frequency range so as to form the balanced unified former message bugle call ripple of each frequency range efficiency
The positive sound wave of device converges.Meanwhile before the discharge of sender 3, the audio for the respective frequency range that each loudspeaker 1 is sent also passes through
Fully merged in housing 2 by the guiding backwards to leading note plate 4, so as to remain the full range information of former sound to greatest extent.Enter one
Step, the structure make it that loudspeaker is positive and sound wave backwards can be released, and strengthens the sounding energy and efficiency of loudspeaker,
Improve the acoustical behavior of loudspeaker.
The sound-producing device of the present embodiment, including at least two loudspeakers；At least two loudspeaker can raise one's voice for high frequency
The combination of two or more any loudspeaker in device, mid frequency ludspeaker, middle/high frequency loudspeaker or woofer；Raise
Sound device is arranged on the housing of sound-producing device, loudspeaker just facing to the outside of housing, the back side of loudspeaker is towards housing
It is internal；At least one sender is offered on housing between each loudspeaker；On the inwall of housing, distance each goes out sound
It is provided with the preset range of hole backwards to leading note plate；It is fixedly connected backwards to one end of leading note plate with the inwall of housing, backwards to leading note plate
The other end be free end, with guide loudspeaker backwards to sound wave along backwards to leading note plate bearing of trend to loudspeaker backwards
Move and bypass and passed backwards to the free end of leading note plate by sender.The distinctive structure make it that high, medium and low band loudspeaker can be with
The former message breath of identical full frequency band is received, and high, middle woofer can play the best efficiency of itself through power match
And discharge it and be most good at the operating efficiency of frequency range；Though the frequency range that each loudspeaker is each good at has difference, and that it is discharged is same
After the former sound sound signal walked with frequency merges via the guiding of leading note plate backwards in housing, the letter of former sound can be completely retained
Breath；Meanwhile the structure make it that loudspeaker is positive and sound wave backwards can be released, and strengthens the sounding energy and effect of loudspeaker
Rate, improve the acoustical behavior of loudspeaker.
Fig. 2 is the structural representation of the sound-producing device shown in the utility model another exemplary embodiment, as shown in Fig. 2
On the basis of above-described embodiment, each between leading note plate 4 and on the inwall of the housing 2 relative with leading note plate 4 backwards,
To leading note plate 5 before being provided with；One end 51 of forward direction leading note plate is fixedly connected with the inwall of housing, and the other end is free end；Forward direction
Point to sender 3 in the free end 52 of leading note plate.
Specifically, by taking the square sound box shown in Fig. 2 as an example, it is being provided with the opposite of housing 2 of loudspeaker 1 before setting
Guide soundboard 5 so that the back side 12 of loudspeaker send after sound wave can be via housing 2 be directed to backwards to leading note plate 4
End, the front end of housing 2 is vectored back to further according to the barrier effect of the forward direction leading note plate 5 set by the rear end of housing 2, so as to the greatest extent
The integrality backwards to sound wave may be kept, it is smoothly passed from the sender 3 pointed by preceding guide soundboard 5.
Optionally, the center 31 of sender is pointed in the free end 52 of forward direction leading note plate.
Specifically, being arranged on preceding to leading note plate 5 at the center 31 of corresponding sender, sender can be caused 3 weeks
It is suitable to enclose acoustic wave energy of the set each loudspeaker 1 at sender 3, so as to improve the harmony of sound wave fusion, lifting
Tonequality.
Optionally, it is arc-shaped backwards to the free end 42 of leading note plate, and/or the free end 52 of forward direction leading note plate.
Specifically, the end points of arc-shaped can cause sound wave smoothly to bypass backwards to the free end 42 of leading note plate and preceding guide
The free end 52 of soundboard, retain to greatest extent backwards to the original waveform characteristic of sound wave, make backwards to sound wave with closest originally shape
The form of state crosses at sender 3 with the positive sound wave of loudspeaker 1.
Fig. 3 is the structural representation of the sound-producing device shown in the utility model another exemplary embodiment, as shown in figure 3,
On the basis of above-described embodiment, optionally, the sound-producing device also includes：Leading note block 6；Leading note block 6 has inner concave arc surface 61；Lead
Sound block 6 is arranged at each edge of the inwall of housing 2, and the shape of leading note block 6 matches with each corner of inwall.
Specifically, leading note block 6 can reduce the reflection and collision backwards to sound wave and each corner of the inwall of housing 2, make the back of the body
Flowed to sound wave smoothly along the inner concave arc surface 61 of leading note block 6 by backwards to leading note plate 4, forward direction leading note plate 5 and the shape of sender 3
Into backwards to sound wave guide path, so as to it is as much as possible retain backwards to sound wave original waveform characteristic, make backwards to sound wave with
Form closest to original position crosses with positive sound wave.
Optionally, housing 2 is polyhedron.Rectangular housing 2 is illustrated in figure 3, the housing 2 is if polyhedron, then inside it
Each edges and corners leading note block 6 can be set, to reduce each corner angle of the inwall backwards to sound wave and housing 2 as much as possible
Reflection and collision, make to flow to sender 3 smoothly along the cambered surface of leading note block 6 backwards to sound wave, avoid each of Polyhedral shells 2
Corner angle retain original waveform characteristic backwards to sound wave as much as possible to the destruction backwards to acoustic waveform and its acoustic wave energy.
Optionally, housing 2 is spheroid, ellipsoid, or, the inwall of housing 2 is curved surface, outer wall is polyhedral housing.
If housing 2 is spheroid, ellipsoid, its housing 2 globoidal structure of itself be advantageous to backwards to sound wave it is smooth it is reverse slide, but arc
The housing 2 of face structure is not easy smoothly to be positioned over desktop, at this moment, housing 2 can be designed as inwall be curved surface, outer wall be multiaspect
The housing of body, so as to can both make the smooth reverse slip in the curved inner wall of housing 2 backwards to sound wave, housing 2 can be made easy again
Placed in stable.
Optionally, the sounding power of each loudspeaker 1 matches each other.According to the operating power of different loudspeakers, to same
Different loudspeakers in audio amplifier carry out power match, for example, integrating middle and high, three loudspeakers of low frequency in audio amplifier, can select three
Person's sounding power ratio is 1:1:1 three loudspeakers are integrated, to ensure sound of the sound wave of three after fusion at sender 3
The acoustic wave energy of ripple is balanced, and tonequality is full.Different, speaker size size, the difference of electrical characteristics according to the demand of user, as long as
Meet that there is between each loudspeaker 1 certain power ratio relation, above-mentioned 1:1:1 ratio relation is only for example, tool
The sounding power match relation of body can be by those skilled in the art according to real needs and loudspeaker box structure, the setting position of sender 3
The factor such as put to be set, the application is not especially limited this.
Optionally, the impedance of each loudspeaker 1 matches each other.Ibid, except power can be carried out to each loudspeaker 1
With can also be matched according to mutual impedance, to realize optimal phonation efficiency.
Optionally, sound-producing device is audio amplifier, earphone or musical instrument.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
- A kind of 1. sound-producing device, it is characterised in that including：At least two loudspeakers；At least two loudspeaker be tweeter, mid frequency ludspeaker, middle/high frequency loudspeaker or The combination of two or more any loudspeaker in woofer；The loudspeaker is arranged on the housing of the sound-producing device, the loudspeaker just facing to the outside of the housing, The back side of the loudspeaker is towards the inside of the housing；At least one sender is offered on the housing between each loudspeaker；On the inwall of the housing, it is provided with each sender preset range of distance backwards to leading note plate；Described one end backwards to leading note plate is fixedly connected with the inwall of the housing, and the other end backwards to leading note plate is freely End, to guide the moving backwards along the bearing of trend backwards to leading note plate to the loudspeaker backwards to sound wave of the loudspeaker Move and bypass the free end backwards to leading note plate and passed by the sender.
- 2. sound-producing device according to claim 1, it is characterised in that it is each it is described between the leading note plate and with it is described On the inwall of the housing relative backwards to leading note plate, to leading note plate before being provided with；One end of the forward direction leading note plate is fixedly connected with the inwall of the housing, and the other end is free end；Point to the sender in the free end of the forward direction leading note plate.
- 3. sound-producing device according to claim 2, it is characterised in that point to institute in the free end of the forward direction leading note plate State the center of sender.
- 4. sound-producing device according to claim 2, it is characterised in that described backwards to the free end of leading note plate, and/or described The free end of forward direction leading note plate is arc-shaped.
- 5. sound-producing device according to claim 2, it is characterised in that described device also includes：Leading note block；The leading note block With inner concave arc surface；The leading note block is arranged at each edge of the inwall of the housing, and the shape of the leading note block Shape matches with each corner of the inwall.
- 6. sound-producing device according to claim 1, it is characterised in that the housing is polyhedron.
- 7. sound-producing device according to claim 1, it is characterised in that the housing is spheroid, ellipsoid, or, it is described The inwall of housing is curved surface, outer wall is polyhedral housing.
- 8. sound-producing device according to claim 1, it is characterised in that the sounding power of each loudspeaker is each other Match somebody with somebody.
- 9. sound-producing device according to claim 7, it is characterised in that the impedance of each loudspeaker matches each other.
- 10. according to sound-producing device according to any one of claims 1 to 9, it is characterised in that the sound-producing device be audio amplifier, Earphone or musical instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768978.1U CN206908842U (en) | 2017-06-28 | 2017-06-28 | sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720768978.1U CN206908842U (en) | 2017-06-28 | 2017-06-28 | sound-producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908842U true CN206908842U (en) | 2018-01-19 |
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ID=61292298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720768978.1U Active CN206908842U (en) | 2017-06-28 | 2017-06-28 | sound-producing device |
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| CN (1) | CN206908842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108924698A (en) * | 2018-09-04 | 2018-11-30 | 前海动声音乐科技（深圳）有限公司 | Sound system and its omni-directional sound amplifying sound box |
| CN109151677A (en) * | 2017-06-28 | 2019-01-04 | 北京太和开元科技有限公司 | Sounding device |
-
2017
- 2017-06-28 CN CN201720768978.1U patent/CN206908842U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109151677A (en) * | 2017-06-28 | 2019-01-04 | 北京太和开元科技有限公司 | Sounding device |
| CN108924698A (en) * | 2018-09-04 | 2018-11-30 | 前海动声音乐科技（深圳）有限公司 | Sound system and its omni-directional sound amplifying sound box |
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