CN203708480U - Multi-vibrating-diaphragm loudspeaker - Google Patents
Multi-vibrating-diaphragm loudspeaker Download PDFInfo
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- CN203708480U CN203708480U CN201420052195.XU CN201420052195U CN203708480U CN 203708480 U CN203708480 U CN 203708480U CN 201420052195 U CN201420052195 U CN 201420052195U CN 203708480 U CN203708480 U CN 203708480U
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- 239000012528 membrane Substances 0.000 claims description 28
- 238000009826 distribution Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model provides a multi-vibrating-diaphragm loudspeaker. The multi-vibrating-diaphragm loudspeaker is characterized in that: the multi-vibrating-diaphragm loudspeaker comprises at least four vibrating diaphragms, inner connection rods and outer connection rods; a connection point is arranged on a DOME long shaft of each vibrating diaphragm; The inner connection rods comprise long rods and short rods; the vibrating diaphragm in odd number positions are connected with the inner connection rods through the connection points, and then the inner connection rods are connected through the outer connection rods and a first vibrating diaphragm group is formed; the vibrating diaphragm in even number positions are connected with the inner connection rods through the connection points, and then the inner connection rods are connected through the outer connection rods and a second vibrating diaphragm group is formed; the long rods and the short rods of the inner connection rods are distributed to be interlaced mutually in the first vibrating diaphragm group and the second vibrating diaphragm group. The multi-vibrating-diaphragm loudspeaker can achieve connection of the vibrating diaphragms without vibrating diaphragm penetration, avoids air leakage and undesirable tone quality, and raises the sounding effects of the loudspeaker.
Description
Technical field
The utility model relates to acoustic-electric technical field, more specifically, relates to a kind of many vibrating membrane loudspeakers.
Background technology
Loud speaker is as the conventional electro-acoustic transducer device that electric energy is changed into acoustic energy, and it plays a part indispensable in sound place system.Loud speaker of a great variety, audio frequency electric energy is by electromagnetism, and piezoelectricity or electrostatic effect, make its cone or diaphragm vibration and produce resonance (sympathetic response) and sound with ambient air.Therefore, had just the appearance of loud speaker, people are just heard beautiful sound.
Vibrating diaphragm is as the sounding parts in loud speaker, and it must enough gently just can guarantee the sounding effect of loud speaker.Meanwhile, in order to reduce the resonance frequency of loud speaker, improve the sensitivity of loud speaker, conventionally in a loud speaker, adopt multiple vibrating diaphragms, between each vibrating diaphragm, connect by connecting rod, to realize the optimization of electroacoustic conversion.But, in existing loud speaker manufacturing process, connecting rod all must penetrate vibrating diaphragm can realize the connection between each vibrating diaphragm, this will inevitably cause the leakage of air, once air leakage just can cause the bad tonequality such as audio distortions or noise to occur, further has influence on the sounding effect of loud speaker.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of many vibrating membrane loudspeakers, occurs the problem of bad tonequality to solve because air leakage causes loud speaker.
The utility model provides a kind of many vibrating membrane loudspeakers, comprises at least 4 vibrating diaphragms, inside connecting rod and outer tie rod; Wherein,
On the DOME of vibrating diaphragm major axis, be respectively arranged with tie point;
Inside connecting rod comprises stock and quarter butt; Wherein, the vibrating diaphragm that is positioned at odd bits is connected with inside connecting rod by tie point, then by outer tie rod, the inside connecting rod of all vibrating diaphragms that are positioned at odd bits that connect is connected, form first group of vibrating diaphragm; Wherein, the stock of inside connecting rod and quarter butt interlaced distribution in first group of vibrating diaphragm;
The vibrating diaphragm that is positioned at even bit is connected with inside connecting rod by tie point, then by outer tie rod, the inside connecting rod of all vibrating diaphragms that are positioned at even bit that connect is connected, form second group of vibrating diaphragm; Wherein, the stock of inside connecting rod and quarter butt interlaced distribution in second group of vibrating diaphragm.
In addition, loud speaker of the present utility model also comprises magnetic circuit, and wherein, first group of vibrating diaphragm and second group of vibrating diaphragm are done respectively vibration in the same way under the driving of corresponding magnetic circuit, and the direction of vibration of first group of vibrating diaphragm and second group of vibrating diaphragm is contrary.
In addition preferred structure is that the quantity of inside connecting rod is consistent with the quantity of vibrating diaphragm, and the quantity of the inside connecting rod being connected with same vibrating diaphragm is one or a pair of.
In addition preferred structure is that, in the time that the quantity of the inside connecting rod being connected with same vibrating diaphragm is one, the quantity of outer connection is two; When the quantity of the inside connecting rod being connected with same vibrating diaphragm is while being a pair of, the quantity of outer tie rod is two pairs.
In addition preferred structure is, in first group of vibrating diaphragm, the stock of inside connecting rod is connected with vibrating diaphragm in 1/4～1/2 region of the DOME of vibrating diaphragm major axis, and the quarter butt of inside connecting rod is connected with vibrating diaphragm in 0～1/4 region of the DOME of vibrating diaphragm major axis.
In addition preferred structure is, in second group of vibrating diaphragm, the stock of inside connecting rod is connected with vibrating diaphragm in 1/4～1/2 region of the DOME of vibrating diaphragm major axis, and the quarter butt of inside connecting rod is connected with vibrating diaphragm in 0～1/4 region of the DOME of vibrating diaphragm major axis.
In addition preferred structure is, the direction of vibration of all vibrating diaphragms in first group of vibrating diaphragm is consistent, and the direction of vibration of all vibrating diaphragms in second group of vibrating diaphragm is consistent.
In addition preferred structure is that the direction of vibration of all vibrating diaphragms in first group of vibrating diaphragm is contrary with the direction of vibration of all vibrating diaphragms in second group of vibrating diaphragm.
Utilize above-mentioned according to many vibrating membrane loudspeakers of the present utility model, connect each vibrating diaphragm by inside connecting rod, then by outer tie rod, inside connecting rod is connected, thereby in the connection that realizes each vibrating diaphragm without penetrate vibrating diaphragm in the situation that, avoid the appearance of air leakage and bad tonequality, improve the sounding effect of loud speaker.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and along with understanding more comprehensively of the present utility model, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is the planar structure front view according to many vibrating membrane loudspeakers of the utility model embodiment;
Fig. 2 is the connecting rod positional structure schematic diagram according to many vibrating membrane loudspeakers of the utility model embodiment;
In figure: 1, magnetic circuit; 3, vibrating diaphragm; 4, outer tie rod; 5, inside connecting rod; 6, shell; 7, front cavity sealing device; 21, the first vibrating diaphragm; 22, the second vibrating diaphragm; 23, the 3rd vibrating diaphragm; 24, the 4th vibrating diaphragm; 25, stock; 26, quarter butt; 27, tie point.
In institute's drawings attached, identical label is indicated similar or corresponding feature or function.
Embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
For aforementioned existing loud speaker, in manufacturing process, connecting rod need penetrate vibrating diaphragm can realize the connection between each vibrating diaphragm, thereby causes the problem of air leakage.The utility model connects each vibrating diaphragm by inside connecting rod, then by outer tie rod, inside connecting rod is connected, thereby in the connection that realizes each vibrating diaphragm without penetrate vibrating diaphragm in the situation that, avoid the appearance of air leakage and bad tonequality, improve the sounding effect of loud speaker.
For many vibrating membrane loudspeakers provided by the utility model are described, Fig. 1 shows according to the planar structure of many vibrating membrane loudspeakers of the utility model embodiment.
In the following description, in the object of explanation, below in the statement of the utility model embodiment, the rigidity position unification at vibrating diaphragm center is expressed as to " DOME " word.
As shown in Figure 1, many vibrating membrane loudspeakers provided by the utility model comprise magnetic circuit 1, vibrating diaphragm 3, outer tie rod 4, inside connecting rod 5, shell 6 and front cavity sealing device 7.Wherein, by tie point is set on the DOME at vibrating diaphragm 3, inside connecting rod 5 is connected with vibrating diaphragm 3, then each vibrating diaphragm that is connected with inside connecting rod is connected by outer tie rod 4.Wherein, DOME is the rigidity position at vibrating diaphragm center.Magnetic circuit 1 drives the DOME of vibrating diaphragm, thereby makes vibrating diaphragm vibration, and so loud speaker just can be sounded.
Conventionally, in a loud speaker, can adopt multiple vibrating diaphragms to improve the radiation scope of loud speaker, therefore the vibrating diaphragm that is positioned at odd bits and even bit is connected to form to two groups of vibrating diaphragms by outer tie rod 4 respectively, and the chamber shell 6 forming between each vibrating diaphragm puts, to reach the object of sealing.Meanwhile, owing to having adopted outer tie rod 4 in loud speaker, before therefore adding, cavity sealing device 7 is to separate the ante-chamber back cavity of loud speaker.
Owing to having adopted inside connecting rod 5 and outer tie rod 4 in the utility model, therefore in the process of making loud speaker, just can realize the connection between each vibrating diaphragm without penetrating vibrating diaphragm, avoid the appearance of air leakage and bad tonequality, improve the sounding effect of loud speaker, also reduced the manufacture difficulty of loud speaker simultaneously.
Above-mentioned all parts to many vibrating membrane loudspeakers provided by the utility model and the annexation of each parts have been done recapitulative description, following by the annexation illustrating in more detail between each parts of many vibrating membrane loudspeakers provided by the utility model.
Particularly, many vibrating membrane loudspeakers provided by the utility model comprise vibrating diaphragm, inside connecting rod and outer tie rod; Wherein, vibrating diaphragm has 4 at least, on the DOME of vibrating diaphragm major axis, is respectively arranged with tie point; Inside connecting rod comprises stock and quarter butt; Wherein, the vibrating diaphragm that is positioned at odd bits is connected with inside connecting rod by tie point, then by outer tie rod, the inside connecting rod of all vibrating diaphragms that are positioned at odd bits that connect is connected, form first group of vibrating diaphragm; Wherein, the stock of inside connecting rod and quarter butt interlaced distribution in first group of vibrating diaphragm.That is to say, all vibrating diaphragms that are positioned at odd bits that are connected with inside connecting rod are connected by outer tie rod, form first group of vibrating diaphragm; Wherein, the distribution in first group of vibrating diaphragm of the stock of inside connecting rod and quarter butt is interlaced.
The vibrating diaphragm that is positioned at even bit is connected with inside connecting rod by tie point, then by outer tie rod, the inside connecting rod of all vibrating diaphragms that are positioned at even bit that connect is connected, form second group of vibrating diaphragm; Wherein, the stock of inside connecting rod and quarter butt interlaced distribution in second group of vibrating diaphragm.
That is to say, all vibrating diaphragms that are positioned at even bit that are connected with inside connecting rod are connected by outer tie rod, form second group of vibrating diaphragm; Wherein, the distribution in second group of vibrating diaphragm of the stock of inside connecting rod and quarter butt is interlaced.Because the operation principle of loud speaker mainly relies on the generation of vibration sound of vibrating diaphragm, and vibrating diaphragm has certain amplitude in the time of vibration, in order to control the amplitude of vibrating diaphragm in the time vibrating, the diverse location that connecting rod is placed on to the DOME of vibrating diaphragm can effectively suppress weave mode and beam mode more than vibrating diaphragm.And in first group of vibrating diaphragm and second group of vibrating diaphragm, the stock of inside connecting rod is connected with vibrating diaphragm in 1/4～1/2 region of the DOME of vibrating diaphragm major axis, the quarter butt of inside connecting rod is connected in 0～1/4 region of the DOME of vibrating diaphragm major axis to the flexural vibrations that are more conducive to suppress vibrating diaphragm with vibrating diaphragm.
It should be noted that, the inside connecting rod being connected with same vibrating diaphragm can occur separately, also can occur in pairs, and the quantity of inside connecting rod and the quantity of vibrating diaphragm that occur separately or occur is in pairs consistent.Meanwhile, because outer tie rod is mainly used in connecting inside connecting rod, thereby realize, all vibrating diaphragms in whole loud speaker are coupled together.Therefore, the quantity of outer tie rod is both relevant with the quantity of inside connecting rod, also relevant to the group number of vibrating diaphragm.
That is to say, the quantity of inside connecting rod is consistent with the quantity of the vibrating diaphragm adopting in whole loud speaker, and the quantity of the inside connecting rod being connected with same vibrating diaphragm is one or a pair of.In the time that the quantity of the inside connecting rod being connected with same vibrating diaphragm is one, the quantity of outer tie rod is two; When the quantity of the inside connecting rod being connected with same vibrating diaphragm is while being a pair of, the quantity of outer tie rod is two pairs.
For example, adopted 6 vibrating diaphragms in a loud speaker, the quantity of inside connecting rod can be 6 so, also can be 6 pairs.Meanwhile, because outer tie rod need to connect stock and the quarter butt of inside connecting rod, therefore, in the time that the inside connecting rod being connected with same vibrating diaphragm adopts one, outer tie rod needs with two; When the inside connecting rod being connected with same vibrating diaphragm adopts when a pair of, outer tie rod also needs paired appearance, and because the group number of vibrating diaphragm is two groups, therefore the quantity of outer tie rod is required to be two pairs.That is to say, the quantity of outer tie rod is both relevant, also relevant to the group number of vibrating diaphragm to the quantity that inside connecting rod adopts.In the utility model, the group number of vibrating diaphragm is two groups, and the quantity of outer tie rod also should be two or two pairs accordingly so.
As a preferred implementation of the present utility model, the quantity of the inside connecting rod being connected with same vibrating diaphragm is made as a pair of, can more be conducive to make vibrating diaphragm in when vibration in poised state.
In addition, the direction of vibration of all vibrating diaphragms in first group of vibrating diaphragm is consistent, and the direction of vibration of all vibrating diaphragms in second group of vibrating diaphragm is consistent, and the direction of vibration of all vibrating diaphragms in first group of vibrating diaphragm is contrary with the direction of vibration of all vibrating diaphragms in the second vibrating diaphragm.
That is to say, all vibrating diaphragms in first group of vibrating diaphragm are owing to having connected same group of outer tie rod, and therefore its direction of vibration is consistent.For example, in the time that first group of vibrating diaphragm upwards vibrates, second group of vibrating diaphragm vibrates downwards, when first group of vibrating diaphragm vibrates downwards, and second group of upwards vibration of vibrating diaphragm.
For the connection between each vibrating diaphragm of many vibrating membrane loudspeakers provided by the utility model is described in more detail, Fig. 2 shows the connecting rod positional structure according to many vibrating membrane loudspeakers of the utility model embodiment.
As shown in Figure 2, the vibrating diaphragm of many vibrating membrane loudspeakers that the utility model provides is at least 4, comprise the first vibrating diaphragm 21, the second vibrating diaphragm 22, the 3rd vibrating diaphragm 23 and the 4th vibrating diaphragm 24, on the DOME major axis of the first vibrating diaphragm 21, the second vibrating diaphragm 22, the 3rd vibrating diaphragm 23 and the 4th vibrating diaphragm 24, be respectively arranged with tie point; Inside connecting rod comprises stock 25 and quarter butt 26; Wherein, the first vibrating diaphragm 21 is connected with stock 25 by tie point 27, and the 3rd vibrating diaphragm 23 is connected with quarter butt 26 by tie point 27, then by outer tie rod 4, the first vibrating diaphragm 21 is connected with the 3rd vibrating diaphragm 23, forms first group of vibrating diaphragm.
The second vibrating diaphragm 22 is connected with quarter butt 26 by tie point 27, and the 4th vibrating diaphragm 24 is connected with stock 25 by tie point 27, then by outer tie rod 4, the second vibrating diaphragm 22 is connected with the 4th vibrating diaphragm 24, forms second group of vibrating diaphragm.Or,
The first vibrating diaphragm 21 is connected with quarter butt 26 by tie point 27, and the 3rd vibrating diaphragm 23 is connected with stock 25 by tie point 27, then by outer tie rod 4, the first vibrating diaphragm 21 is connected with the 3rd vibrating diaphragm 23, forms first group of vibrating diaphragm.
The second vibrating diaphragm 22 is connected with 7 stocks 25 by tie point 27, and the 4th vibrating diaphragm 24 is connected with quarter butt 26 by tie point 27, then by outer tie rod 4, the second vibrating diaphragm 22 is connected with the 4th vibrating diaphragm 24, forms second group of vibrating diaphragm.So, first group of vibrating diaphragm and second group of vibrating diaphragm just can vibrate under the driving of magnetic circuit 1, thereby loud speaker is sounded.Can find out by above-described embodiment, the vibrating diaphragm that is positioned at odd bits is by inside connecting rod and connect to form first group of vibrating diaphragm outward, the vibrating diaphragm that is positioned at even bit forms second group of vibrating diaphragm by inside connecting rod and outer tie rod, and the distribution in first group of vibrating diaphragm and second group of vibrating diaphragm of the stock of inside connecting rod and quarter butt is interlaced, and in the initial vibrating diaphragm of first group of vibrating diaphragm and second group of vibrating diaphragm, the stock of inside connecting rod and the distribution of quarter butt are also interlaced.
In order to reduce the monomer resonance frequency of the vibrating diaphragm in loud speaker, improve tonequality and the sensitivity of whole loud speaker, can in a loud speaker, use multiple vibrating diaphragms, be only illustrated as an example of four vibrating diaphragms example in the above-described embodiments.Similarly, can be in a loud speaker widen the radiation scope of loud speaker with 6 or 8 even more vibrating diaphragms.
Particularly, the following loud speaker take 6 vibrating diaphragms describes as example.For convenience statement, at this, 6 vibrating diaphragms are distinguished to called after the first vibrating diaphragm, the second vibrating diaphragm, the 3rd vibrating diaphragm, the 4th vibrating diaphragm, the 5th vibrating diaphragm and the 6th vibrating diaphragms.Wherein, on the DOME major axis of the first vibrating diaphragm, the second vibrating diaphragm, the 3rd vibrating diaphragm, the 4th vibrating diaphragm, the 5th vibrating diaphragm and the 6th vibrating diaphragm, be respectively arranged with tie point.Inside connecting rod comprises stock and quarter butt; Wherein, the first vibrating diaphragm is connected with stock by tie point, and the 3rd vibrating diaphragm is connected with quarter butt by tie point, and the 5th vibrating diaphragm is connected with stock by tie point, then by outer tie rod, the first vibrating diaphragm, the 3rd vibrating diaphragm and the 5th vibrating diaphragm are connected, form first group of vibrating diaphragm.
The second vibrating diaphragm is connected with quarter butt by tie point, and the 4th vibrating diaphragm is connected with stock by tie point, and the 6th vibrating diaphragm is connected with quarter butt by tie point, then by outer tie rod, the second vibrating diaphragm, the 4th vibrating diaphragm and the 6th vibrating diaphragm is connected, and forms second group of vibrating diaphragm.
Can find out by above-mentioned, this the many vibrating membrane loudspeakers that provide connect each vibrating diaphragm by inside connecting rod, then by outer tie rod, inside connecting rod is connected, thereby in the connection that realizes each vibrating diaphragm without penetrate vibrating diaphragm in the situation that, avoid the appearance of air leakage and bad tonequality, improve the sounding effect of loud speaker.
Describe according to many vibrating membrane loudspeakers of the present utility model in the mode of example above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the many vibrating membrane loudspeakers that propose for above-mentioned the utility model, can also on the basis that does not depart from the utility model content, make various improvement.Therefore, protection range of the present utility model should be determined by the content of appending claims.
Claims (8)
1. a vibrating membrane loudspeaker more than, is characterized in that, comprises at least 4 vibrating diaphragms, inside connecting rod and outer tie rod; Wherein,
On the DOME of described vibrating diaphragm major axis, be respectively arranged with tie point;
Described inside connecting rod comprises stock and quarter butt; Wherein,
The vibrating diaphragm that is positioned at odd bits is connected with described inside connecting rod by described tie point, then by described outer tie rod, the described inside connecting rod of all vibrating diaphragms that are positioned at odd bits that connect is connected, form first group of vibrating diaphragm; Wherein, the stock of described inside connecting rod and quarter butt interlaced distribution in described first group of vibrating diaphragm;
The vibrating diaphragm that is positioned at even bit is connected with described inside connecting rod by described tie point, then by described outer tie rod, the described inside connecting rod of all vibrating diaphragms that are positioned at even bit that connect is connected, form second group of vibrating diaphragm; Wherein, the stock of described inside connecting rod and quarter butt interlaced distribution in described second group of vibrating diaphragm.
2. many vibrating membrane loudspeakers as claimed in claim 1, it is characterized in that, described many vibrating membrane loudspeakers also comprise magnetic circuit, wherein, described first group of vibrating diaphragm and second group of vibrating diaphragm are done respectively vibration in the same way under the driving of corresponding magnetic circuit, and the direction of vibration of described first group of vibrating diaphragm and second group of vibrating diaphragm is contrary.
3. many vibrating membrane loudspeakers as claimed in claim 1, is characterized in that, the quantity of described inside connecting rod is consistent with the quantity of described vibrating diaphragm, and the quantity of the inside connecting rod being connected with same vibrating diaphragm is one or a pair of.
4. many vibrating membrane loudspeakers as claimed in claim 3, is characterized in that, in the time that the quantity of the inside connecting rod being connected with same vibrating diaphragm is one, the quantity of described outer tie rod is two;
When the quantity of the inside connecting rod being connected with same vibrating diaphragm is while being a pair of, the quantity of described outer tie rod is two pairs.
5. many vibrating membrane loudspeakers as claimed in claim 1, it is characterized in that, in described first group of vibrating diaphragm, the stock of described inside connecting rod is connected with described vibrating diaphragm in 1/4～1/2 region of the DOME of described vibrating diaphragm major axis, and the quarter butt of described inside connecting rod is connected with described vibrating diaphragm in 0～1/4 region of the DOME of described vibrating diaphragm major axis.
6. many vibrating membrane loudspeakers as claimed in claim 1, it is characterized in that, in described second group of vibrating diaphragm, the stock of described inside connecting rod is connected with described vibrating diaphragm in 1/4～1/2 region of the DOME of described vibrating diaphragm major axis, and the quarter butt of described inside connecting rod is connected with described vibrating diaphragm in 0～1/4 region of the DOME of described vibrating diaphragm major axis.
7. many vibrating membrane loudspeakers as claimed in claim 1, is characterized in that, the direction of vibration of all vibrating diaphragms in described first group of vibrating diaphragm is consistent, and the direction of vibration of all vibrating diaphragms in described second group of vibrating diaphragm is consistent.
8. many vibrating membrane loudspeakers as claimed in claim 1, is characterized in that, the direction of vibration of all vibrating diaphragms in described first group of vibrating diaphragm is contrary with the direction of vibration of all vibrating diaphragms in second group of vibrating diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052195.XU CN203708480U (en) | 2014-01-26 | 2014-01-26 | Multi-vibrating-diaphragm loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052195.XU CN203708480U (en) | 2014-01-26 | 2014-01-26 | Multi-vibrating-diaphragm loudspeaker |
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| CN203708480U true CN203708480U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420052195.XU Expired - Lifetime CN203708480U (en) | 2014-01-26 | 2014-01-26 | Multi-vibrating-diaphragm loudspeaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781002A (en) * | 2014-01-26 | 2014-05-07 | 歌尔声学股份有限公司 | Multi-vibrating-diaphragm loudspeaker |
| CN110149580A (en) * | 2019-05-10 | 2019-08-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
-
2014
- 2014-01-26 CN CN201420052195.XU patent/CN203708480U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781002A (en) * | 2014-01-26 | 2014-05-07 | 歌尔声学股份有限公司 | Multi-vibrating-diaphragm loudspeaker |
| CN103781002B (en) * | 2014-01-26 | 2017-07-28 | 歌尔股份有限公司 | A kind of many vibrating membrane loudspeakers |
| US9936303B2 (en) | 2014-01-26 | 2018-04-03 | Goertek Inc. | Multi-diaphragm speaker |
| CN110149580A (en) * | 2019-05-10 | 2019-08-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN110149580B (en) * | 2019-05-10 | 2021-02-12 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
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Granted publication date: 20140709 |