CN202799131U - Micro loudspeaker - Google Patents
Micro loudspeaker Download PDFInfo
- Publication number
- CN202799131U CN202799131U CN 201220428095 CN201220428095U CN202799131U CN 202799131 U CN202799131 U CN 202799131U CN 201220428095 CN201220428095 CN 201220428095 CN 201220428095 U CN201220428095 U CN 201220428095U CN 202799131 U CN202799131 U CN 202799131U
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- China
- Prior art keywords
- magnet portion
- packing ring
- vibrating diaphragm
- pole piece
- yoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a micro loudspeaker which comprises a vibrating system and a magnetic circuit system. The vibrating system comprises a vibrating diaphragm and a voice ring driving the vibrating diaphragm to vibrate and produce sound. The magnetic circuit system comprises a magnetic yoke, a first magnetic body portion and second magnetic body portions, wherein the first magnetic body portion and the second magnetic body portions are assembled on the magnetic yoke, and at least one of the first magnetic body portion and the second magnetic body portions is a permanent magnet. Projection of the vibrating diaphragm onto the magnetic yoke is arranged in an outline range of the magnetic yoke. The second magnetic body portions are arranged on the periphery of the first magnetic body at intervals, a gap between the first magnetic body portion and the second magnetic body portions is a magnetic gap, and the second magnetic body portions are provided with at least one leaking hole for communicating the magnetic gap and the outside environment. Cost for manufacturing a casing is saved, simultaneously the magnetic circuit system and the vibrating system are maximized, and acoustic performance of the micro loudspeaker is effectively improved.
Description
[technical field]
The utility model relates to a kind of electroacoustic transducer, relates in particular to the Microspeaker that in a kind of electroacoustic transducer the signal of telecommunication is converted into voice signal.
[background technology]
Along with the fast development of wireless telecommunications, Global Mobile Phone is more and more, and people are not limited only to basic conversation to the requirement of mobile phone, more requires the face shaping of traditional mobile phone is proposed more requirements.Especially the arrival in 3G epoch, Technology of Mobile Multimedia be thereupon development also, and a lot of mobile phones have multiple amusement function, and such as video playback, digital vedio recording, game, GPS navigation etc., this requires mobile phone screen increasing, so that better visual experience.
The Microspeaker of tradition mobile phone all is that magnetic circuit system and vibrational system are housed in the shell, in the situation that shell sizes is fixed, be difficult to do magnetic circuit system and vibrational system larger again, this must cause the performance of loud speaker to be difficult to further lifting, equally, also be difficult to speaker size is done less when satisfying speaker performance, make the microminiaturization development of loud speaker be subject to great resistance.
Therefore, be necessary to provide a kind of new Microspeaker for above-mentioned shortcoming.
[utility model content]
The purpose of this utility model is to provide a kind of new micro loud speaker, and this Microspeaker performance is better, and size is less.
A kind of Microspeaker, involving vibrations system and be positioned at described vibrational system below and be used for driving the magnetic circuit system of described vibrational system vibration sounding, described vibrational system comprises vibrating diaphragm and drives the voice coil loudspeaker voice coil of vibrating diaphragm vibration sounding, described magnetic circuit system comprises yoke, at least one is the first magnet portion and second magnet portion of permanent magnet in described yoke and between the two in assembly, described vibrating diaphragm is positioned at the profile scope of described yoke to the projection of yoke, described the second magnet portion is arranged at intervals at all sides of described the first magnet portion, gap between described the first magnet portion and the second magnet portion is magnetic gap, and described the second magnet portion is provided with at least one for the leak with magnetic gap and external environment connect.
Preferably, described the first magnet portion and described the second magnet portion all are permanent magnet, described magnetic circuit system also comprises the first pole piece and the second pole piece that is attached at respectively described the first magnet portion and described the second magnet portion surface, described the second pole piece is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second pole piece three are cascading.
Preferably, described the first magnet portion and described yoke are wholely set, described the second magnet portion is permanent magnet, described magnetic circuit system also comprises the second pole piece that is attached at described the second magnet portion surface, described the second pole piece is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second pole piece three are cascading.
Preferably, described packing ring and described the second pole piece are wholely set.
Preferably, described the first magnet portion is permanent magnet, described the second magnet portion and described yoke are wholely set, described magnetic circuit system also comprises the first pole piece that is attached at described the first magnet portion surface, described the second magnet portion is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second magnet portion three are cascading.
Preferably, described voice coil loudspeaker voice coil is provided with voice coil leads, and described packing ring is provided with the through hole of accommodating described voice coil leads, and voice coil leads is passed this through hole and is electrically connected with extraneous.
Preferably, at least two of described the second magnet portion quantity, the second adjacent magnet portion does not contact mutually, and the gap between described adjacent the second magnet portion is leak.
Preferably, the quantity of described the second magnet portion is four.
Preferably, described Microspeaker also comprises a protecgulum, and described protecgulum lid is connected to the periphery of described vibrating diaphragm.
The beneficial effects of the utility model are: the Microspeaker that the utility model provides does not arrange shell, and in the second magnet portion leak with magnetic gap and external environment connect is set, not only saved the cost of making shell, make simultaneously magnetic circuit system and vibrational system the maximization, Effective Raise the acoustical behavior of Microspeaker.
[description of drawings]
Fig. 1 is the exploded view of the utility model Microspeaker the first embodiment;
Fig. 2 is the cutaway view of Microspeaker shown in Figure 1;
Fig. 3 is the stereogram that Microspeaker shown in Figure 1 is hidden yoke;
Fig. 4 is the stereogram of Microspeaker shown in Figure 1;
Fig. 5 is the exploded view of the utility model Microspeaker the second embodiment;
Fig. 6 is the exploded view of the utility model Microspeaker the 3rd embodiment;
Fig. 7 is that the utility model Microspeaker packing ring and the second pole piece are wholely set stereogram.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, the utility model provides a kind of Microspeaker 100, involving vibrations system 1 and be positioned at described vibrational system 1 below and be used for driving the magnetic circuit system 2 of described vibrational system 1 vibration sounding and the protecgulum 3 that lid is connected to the periphery of described vibrating diaphragm 10, wherein, described vibrational system 1 comprises vibrating diaphragm 10 and be used for to drive the voice coil loudspeaker voice coil 11 of vibrating diaphragm 10 vibration soundings.Described magnetic circuit system 2 comprises that at least one is the first magnet portion 21 of permanent magnet and the second magnet portion 22 in described yoke 20 and between the two for yoke 20, assembly.Described vibrating diaphragm 10 is positioned at the profile scope of yoke 20 to the projection of yoke 20.
Such as Fig. 2 ~ shown in Figure 4, described the second magnet portion 22 is arranged at intervals at described the first magnet portion 21 all sides, and the gap between described the first magnet portion 21 and the second magnet portion 22 is magnetic gap 25, and described the second magnet portion 22 is provided with at least one and is used for the leak 26 of magnetic gap 25 with external environment connect.
As depicted in figs. 1 and 2, as a preferred implementation of the present utility model, described the first magnet portion 21 all is permanent magnet with described the second magnet portion 22.Described magnetic circuit system 2 also comprises the first pole piece 23 and the second pole piece 24 that is attached at respectively described the first magnet portion 21 and described the second magnet portion 22 surfaces.Described the second pole piece 24 is provided with packing ring 27, and the periphery of described vibrating diaphragm 10 is fixed in described packing ring 27, and described vibrating diaphragm 10, packing ring 27 and the second pole piece 24 threes are cascading.Preferably, in protection range of the present utility model, described packing ring 27 can be wholely set with described the second pole piece 24, again in conjunction with shown in Figure 7.
As shown in Figure 5, as a preferred implementation of the present utility model, described the first magnet portion 21 is wholely set with described yoke 20, and described the second magnet portion 22 is permanent magnet.Described magnetic circuit system 2 also comprises the second pole piece 24 that is attached at described the second magnet portion 22 surfaces.Described the second pole piece 24 is provided with packing ring 27, and the periphery of described vibrating diaphragm 10 is fixed in described packing ring 27, and described vibrating diaphragm 10, packing ring 27 and the second pole piece 24 threes are cascading.Preferably, in protection range of the present utility model, described packing ring 27 can be wholely set with described the second pole piece 24, again in conjunction with shown in Figure 7.
As shown in Figure 6, as a preferred implementation of the present utility model, described the first magnet portion 21 is permanent magnet, and described the second magnet portion 22 is wholely set with described yoke 20.Described magnetic circuit system 2 also comprises the first pole piece 23 that is attached at described the first magnet portion 21 surfaces, described the second magnet portion 22 is provided with packing ring 27, the periphery of described vibrating diaphragm 10 is fixed in described packing ring 27, and described vibrating diaphragm 10, packing ring 27 and the second magnet portion 22 threes are cascading.
As depicted in figs. 1 and 2, described voice coil loudspeaker voice coil 11 1 ends are suspended in described magnetic gap 25, and described voice coil loudspeaker voice coil 11 is provided with voice coil leads 110, described packing ring 27 is provided with the through hole 270 of accommodating described voice coil leads 110, voice coil leads 110 is passed this through hole 270 and is electrically connected with extraneous, as shown in Figure 3 and Figure 4.
At least two of described the second magnet portion 22 quantity, the second adjacent magnet portion 22 does not contact mutually, and the gap between described adjacent the second magnet portion 22 is leak 26.The utility model preferred embodiment in, the quantity of described the second magnet portion 22 is four.
In the utility model, so-called magnetic circuit system refers to produce magnetic field, and the magnetic field that produces can be subject to the combination of each element of the impact of each element in the system.
And yoke not only is confined to tabular, in fact, and in the utility model, because the first magnet portion and the second magnet portion have at least between the two one to be permanent magnet, like this, when the first magnet portion and the second magnet portion all were permanent magnet, the shape of yoke is as shown in Figure 1 tabular just; When the first magnet portion and yoke are integrated setting, when the second magnet portion was permanent magnet, described yoke was as shown in Figure 5 T-shaped; When the first magnet portion is permanent magnet, the second magnet portion and yoke are integrated when arranging, and described yoke is as shown in Figure 6 bowl-shape.
Such as Fig. 1, Fig. 2 and shown in Figure 3, the Microspeaker that the utility model provides does not arrange shell, and arrange the leak 26 of magnetic gap 25 with external environment connect in the second magnet portion 22, not only saved the cost of making shell, make simultaneously 1 maximization of magnetic circuit system 2 and vibrational system, Effective Raise the acoustical behavior of Microspeaker 1.
Above-described only is preferred embodiments of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (9)
1. Microspeaker, it is characterized in that, involving vibrations system and be positioned at described vibrational system below and be used for driving the magnetic circuit system of described vibrational system vibration sounding, described vibrational system comprises vibrating diaphragm and drives the voice coil loudspeaker voice coil of vibrating diaphragm vibration sounding, described magnetic circuit system comprises yoke, at least one is the first magnet portion and second magnet portion of permanent magnet in described yoke and between the two in assembly, described vibrating diaphragm is positioned at the profile scope of described yoke to the projection of yoke, described the second magnet portion is arranged at intervals at all sides of described the first magnet portion, gap between described the first magnet portion and the second magnet portion is magnetic gap, and described the second magnet portion is provided with at least one for the leak with magnetic gap and external environment connect.
2. Microspeaker according to claim 1, it is characterized in that: described the first magnet portion and described the second magnet portion all are permanent magnet, described magnetic circuit system also comprises the first pole piece and the second pole piece that is attached at respectively described the first magnet portion and described the second magnet portion surface, described the second pole piece is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second pole piece three are cascading.
3. Microspeaker according to claim 1, it is characterized in that: described the first magnet portion and described yoke are wholely set, described the second magnet portion is permanent magnet, described magnetic circuit system also comprises the second pole piece that is attached at described the second magnet portion surface, described the second pole piece is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second pole piece three are cascading.
4. according to claim 2 or 3 described Microspeakers, it is characterized in that: described packing ring and described the second pole piece are wholely set.
5. Microspeaker according to claim 1, it is characterized in that: described the first magnet portion is permanent magnet, described the second magnet portion and described yoke are wholely set, described magnetic circuit system also comprises the first pole piece that is attached at described the first magnet portion surface, described the second magnet portion is provided with packing ring, the periphery of described vibrating diaphragm is fixed in described packing ring, and described vibrating diaphragm, packing ring and the second magnet portion three are cascading.
6. according to claim 2, the described Microspeaker of 3 or 5 any one, it is characterized in that: described voice coil loudspeaker voice coil is provided with voice coil leads, described packing ring is provided with the through hole of accommodating described voice coil leads, voice coil leads is passed this through hole and is electrically connected with extraneous.
7. Microspeaker according to claim 1 is characterized in that: at least two of described the second magnet portion quantity, the second adjacent magnet portion does not contact mutually, and the gap between described adjacent the second magnet portion is leak.
8. Microspeaker according to claim 7, it is characterized in that: the quantity of described the second magnet portion is four.
9. Microspeaker according to claim 1, it is characterized in that: described Microspeaker also comprises a protecgulum, described protecgulum lid is connected to the periphery of described vibrating diaphragm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428095 CN202799131U (en) | 2012-08-27 | 2012-08-27 | Micro loudspeaker |
| US14/010,620 US20140056446A1 (en) | 2012-08-27 | 2013-08-27 | Micro-Speaker |
| US14/010,652 US20140056445A1 (en) | 2012-08-27 | 2013-08-27 | Micro-electroacoustic Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220428095 CN202799131U (en) | 2012-08-27 | 2012-08-27 | Micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799131U true CN202799131U (en) | 2013-03-13 |
Family
ID=47826297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220428095 Expired - Fee Related CN202799131U (en) | 2012-08-27 | 2012-08-27 | Micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799131U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809708A (en) * | 2017-11-30 | 2018-03-16 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN109218929A (en) * | 2018-01-10 | 2019-01-15 | 歌尔股份有限公司 | Acoustical generator |
| WO2019205658A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing device, sound producing module, and electronic terminal |
| WO2019205661A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
| WO2019205657A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
| CN110418262A (en) * | 2018-04-27 | 2019-11-05 | 歌尔股份有限公司 | Sounding device |
| CN110933571A (en) * | 2019-12-13 | 2020-03-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN111343542A (en) * | 2020-03-05 | 2020-06-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| WO2022000519A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022218101A1 (en) * | 2021-04-15 | 2022-10-20 | Oppo广东移动通信有限公司 | Speaker and audio reproduction apparatus |
-
2012
- 2012-08-27 CN CN 201220428095 patent/CN202799131U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809708A (en) * | 2017-11-30 | 2018-03-16 | 广东欧珀移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| US11395071B2 (en) | 2018-01-10 | 2022-07-19 | Goertek Inc. | Sound generator |
| CN109218929A (en) * | 2018-01-10 | 2019-01-15 | 歌尔股份有限公司 | Acoustical generator |
| WO2019137191A1 (en) * | 2018-01-10 | 2019-07-18 | 歌尔股份有限公司 | Sounder |
| CN109218929B (en) * | 2018-01-10 | 2024-04-02 | 歌尔股份有限公司 | Acoustic generator |
| WO2019205661A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
| CN110418260A (en) * | 2018-04-27 | 2019-11-05 | 歌尔股份有限公司 | A kind of sounding monomer, sounding module and electric terminal |
| CN110418262A (en) * | 2018-04-27 | 2019-11-05 | 歌尔股份有限公司 | Sounding device |
| WO2019205657A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing unit, sound producing module, and electronic terminal |
| US11930343B2 (en) | 2018-04-27 | 2024-03-12 | Goertek Inc. | Sound producing unit, sound producing module, and electronic terminal |
| WO2019205658A1 (en) * | 2018-04-27 | 2019-10-31 | 歌尔股份有限公司 | Sound producing device, sound producing module, and electronic terminal |
| CN110933571A (en) * | 2019-12-13 | 2020-03-27 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN111343542A (en) * | 2020-03-05 | 2020-06-26 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN111343542B (en) * | 2020-03-05 | 2021-08-10 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| WO2022000519A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022218101A1 (en) * | 2021-04-15 | 2022-10-20 | Oppo广东移动通信有限公司 | Speaker and audio reproduction apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170519 Address after: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181121 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Singapore Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee before: AAC TECHNOLOGIES Pte. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210827 |