CN205961439U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN205961439U CN205961439U CN201620767648.6U CN201620767648U CN205961439U CN 205961439 U CN205961439 U CN 205961439U CN 201620767648 U CN201620767648 U CN 201620767648U CN 205961439 U CN205961439 U CN 205961439U
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- China
- Prior art keywords
- voice coil
- arm
- fixed part
- vibrating diaphragm
- shaker arm
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- Expired - Fee Related
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Abstract
The utility model provides a loudspeaker, including vibration system and magnetic circuit, vibration system includes first vibrating diaphragm, second vibrating diaphragm, voice coil loudspeaker voice coil, and set up in be close to on the first vibrating diaphragm the ball top of voice coil loudspeaker voice coil one side, the voice coil loudspeaker voice coil has major axis and minor axis, loudspeaker still includes the flexible circuit board, the flexible circuit board include with first vibrating diaphragm fixed connection's first fixed part, with ball top fixed connection's second fixed part and connection first fixed part with a plurality of elasticity arms of second fixed part, each the elasticity arm is including being on a parallel with the first shaker arm of the major axis of voice coil loudspeaker voice coil, be on a parallel with the second shaker arm of the minor axis of voice coil loudspeaker voice coil, and connect in first shaker arm with turning shaker arm between the second shaker arm, first shaker arm with first fixed part is connected, just the second shaker arm with the second fixed part is connected. The utility model discloses longer and the easy breakage not of the loudspeaker arm of force.
Description
【Technical field】
The utility model is related to acoustic-electric conversion art, especially designs a kind of loudspeaker.
【Background technology】
In recent years, with scientific and technological development, the progress at full speed of especially mobile communication technology, increasing mobile electron
Equipment occurs in daily life, as smart mobile phone, panel computer, notebook computer and multimedia media player
Become the not retrievable daily necessities of people.And in these mobile electronic devices, voice playing device is must inside it
Few part, the height of voice quality directly affects user and uses Consumer's Experience during these mobile electronic devices.
Wave to prevent single diaphragm structure from so that loudspeaker is produced in prior art, and increase
Add the novel speaker arrangement of underlying sound film.But the power of New-type loudspeaker is big, in order to ensure the normal operation of loudspeaker,
And introduce flexible PCB in New-type loudspeaker.First that underlying sound film is glued with flexible PCB in assembling, subsequently
Underlying sound film and flexible PCB are glued at below voice coil loudspeaker voice coil.During using this kind of structure, the restriction due to magnetic circuit system leads to
The arm of force of flexible PCB is shorter, the problem easily occurring breaking.
Therefore, it is necessary to provide a kind of new loudspeaker to solve the above problems.
【Utility model content】
The purpose of this utility model is the loudspeaker providing a kind of arm of force longer and being difficult to break.
The technical solution of the utility model is as follows：A kind of loudspeaker, including vibrational system and the described vibrational system of driving
The magnetic circuit system of vibration；Described vibrational system includes the first vibrating diaphragm, the second vibrating diaphragm, drives described first vibrating diaphragm and described second to shake
The voice coil loudspeaker voice coil of film vibration sounding, and it is arranged at the top dome near described voice coil loudspeaker voice coil side on described first vibrating diaphragm；Described voice coil loudspeaker voice coil has
Major axis and short axle；Described loudspeaker also includes the flexible PCB between described first vibrating diaphragm and described second vibrating diaphragm；Institute
State that the first fixed part that flexible PCB includes being fixedly connected with described first vibrating diaphragm is fixedly connected with described top dome second is solid
The multiple elasticity arms determined portion and connect described first fixed part and described second fixed part；
Each described elasticity arm includes the first shaker arm of the major axis parallel to described voice coil loudspeaker voice coil, short parallel to described voice coil loudspeaker voice coil
Second shaker arm of axle, and it is connected to the turning shaker arm between described first shaker arm and described second shaker arm；Described
First shaker arm is connected with described first fixed part, and described second shaker arm is connected with described second fixed part.
Preferably, described flexible PCB is around the periphery setting of described voice coil loudspeaker voice coil；Described voice coil loudspeaker voice coil and described top dome contact
The end face that contacts with described flexible PCB and described top dome of end face.
Preferably, described first fixed part includes a pair first fixed edges of the major axis corresponding to described voice coil loudspeaker voice coil, corresponds to
A pair second fixed edges of the short axle of described voice coil loudspeaker voice coil, and the turning of described first fixed edge of connection and described second fixed edge is solid
Deckle；Second fixed edge of described first fixed part is parallel to the second shaker arm of described elasticity arm, and described first fixed part
Turning fixed edge parallel to described elasticity arm turning shaker arm；First fixed edge of described first fixed part and described elastic force
First shaker arm of arm connects.
Preferably, described second fixed part is arranged on described second shaker arm near the side of described voice coil loudspeaker voice coil, and described
It is additionally provided with the first linking arm between two shaker arms and described second fixed part；The shape of described first linking arm and described voice coil loudspeaker voice coil
The shape of the part that upper and described first linking arm adjoins is adapted.
Preferably, the quantity of described elasticity arm is four, and four described elasticity arms are symmetrical with regard to the short axle of described voice coil loudspeaker voice coil；
Corresponding second shaker arm of two elasticity arms positioned at short axle the same side of described voice coil loudspeaker voice coil passes through the second linking arm and connects.
Preferably, described flexible PCB also includes two the second fixed parts being connected to major axis the same side of described voice coil loudspeaker voice coil
Between the 3rd linking arm.
Preferably, described first fixed part is connected with described first vibrating diaphragm gluing.
Preferably, described second fixed part is in the glued connection of described top dome.
Preferably, described loudspeaker also includes frame；Described second vibrating diaphragm and described magnetic circuit system are contained in described frame
Interior；Described first fixed part of described flexible PCB is located between described frame and described first vibrating diaphragm.
Preferably, described first vibrating diaphragm includes being fixedly connected with described top dome main part, from described main part to extension
Stretch formed and around described main part setting the first ring portion, and from described first ring portion stretch out formation and cincture
The first connecting portion of described first ring portion setting；
Described first connecting portion is fixedly connected with described first fixed part；Described top dome extends outwardly beyond described main part
To be fixedly connected with described second fixed part；Described first shaker arm, described second shaker arm and described turning shaker arm exist
Projection on the direction of vibration of described first vibrating diaphragm is located in the drop shadow spread in described first ring portion.
The beneficial effects of the utility model are：By being arranged on described flexible PCB below the first vibrating diaphragm, can fill
Divide using the space below the first vibrating diaphragm.Therefore, the elasticity arm of this flexible PCB can be walked along the first ring portion of the first vibrating diaphragm
Line, and then so that the torque arm length that flexible PCB participates in vibration can be increased, and this flexible PCB is suffered in vibration processes
Stress reduces, it is to avoid the flexible PCB broken string causing because the arm of force is shorter.
【Brief description】
Fig. 1 is the stereogram of the loudspeaker in the utility model one embodiment；
Fig. 2 is the three-dimensional exploded view of the loudspeaker in Fig. 1；
Fig. 3 is the sectional view of the line A-A along along Fig. 1；
Fig. 4 is the plan of the flexible PCB in Fig. 2 and voice coil loudspeaker voice coil；And
Fig. 5 is the plan of the flexible PCB in another embodiment of the utility model.
【Specific embodiment】
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the stereogram of the utility model loudspeaker 100；Fig. 2 is the three-dimensional exploded view of the loudspeaker 100 in Fig. 1.As
Shown in Fig. 1-2, in the utility model one embodiment, this loudspeaker 100 includes frame 1, the magnetic circuit system being contained in described frame 1
System 3, the vibrational system 5 by described magnetic circuit system 3 driving and flexible PCB 7.This flexible PCB 7 is used for vibrational system
5 voice coil loudspeaker voice coil 55 is electrically connected with external circuit.
As shown in Fig. 2 this magnetic circuit system 3 includes yoke 31, the main magnet steel 33 being arranged in yoke 31, is arranged at yoke 31
Go up and be located at the secondary magnet steel 35 of described main magnet steel 33 both sides, the main pole core 37 being arranged on main magnet steel 33, and around main pole core
The consequent pole core 39 of 37 settings.Consequent pole core 39 is fixed in frame 1, and that is, main pole core 37, main magnet steel 33 and yoke 31 are folded successively and set.Its
In, secondary magnet steel 35 and main magnet steel 33 interval setting form magnetic gap 34.Yoke 31 includes rectangle yoke diapire and from described rectangle
The two ends of yoke diapire length direction each extend over two sections of convex walls being connected to described frame 1 bottom.Yoke 31 is used for magnetic screen,
Prevent described loudspeaker 100 magnetic leakage, and play the main magnet steel of fixation 33 and the effect of secondary magnet steel 35.
Fig. 3 is the sectional view of the line A-A along along Fig. 1.As Figure 2-3, this vibrational system 5 includes the first vibrating diaphragm 51 and institute
State the second vibrating diaphragm 53 that the first vibrating diaphragm 51 is oppositely arranged, be located at described for driving between the first vibrating diaphragm 51 and the second vibrating diaphragm 53
First vibrating diaphragm 51 and the voice coil loudspeaker voice coil 55 of described second vibrating diaphragm 53 vibration sounding, and be arranged on this first vibrating diaphragm 51 near voice coil loudspeaker voice coil 55
The top dome 57 of side.Wherein, the second vibrating diaphragm 53 is contained in frame 1, and flexible PCB 7 shakes positioned at the first vibrating diaphragm 51 and second
Between film 53, specifically this flexible PCB 7 is located between the first vibrating diaphragm 51 and frame 1 in the present embodiment.And voice coil loudspeaker voice coil 55 ring
Around main magnet steel 33 interval setting, and insert in the magnetic gap 34 of magnetic circuit system 3.In conjunction with Fig. 4 as can be seen that this voice coil loudspeaker voice coil 55 has length
Axle 551 and short axle 552.
Further as shown in figure 3, this first vibrating diaphragm 51 includes main part 511, the main body being fixedly connected with top dome 57
511 stretch out forms and the first ring portion 513 around main part 511 setting, and stretches out from the first ring portion 513
Formed and the first connecting portion 515 around the first ring portion 513 setting.In the present embodiment, in the vibration side of the first vibrating diaphragm 51
Upwards, the projection of this top dome 57 is overlapping with the projection section in the first ring portion 513, and that is, top dome 57 extends outwardly beyond main part
511, in order to being connected of this top dome 57 and flexible PCB 7.
And the second vibrating diaphragm 53 includes the second ring portion 531, the second connection extending from described second ring portion 531 inner peripheral
Portion 533 and the 3rd connecting portion 535 extending from the second ring portion 531 outer peripheral edge.Second connecting portion 533 is solid with the bottom of voice coil loudspeaker voice coil 55
Fixed connection, the 3rd connecting portion 535 is located between described yoke 31 and frame 1.Second ring portion 531 is dorsad the first vibrating diaphragm 51
The concave configuration of depression.The quantity of the second vibrating diaphragm 53 is two, is divided into the two ends of the length direction of frame 1, and two second
Vibrating diaphragm 53 is symmetrical arranged with regard to main magnet steel 31.By arranging such second vibrating diaphragm 53, it is possible to resolve the vibration and sway of vibrational system 5
Problem；In addition, the concave configuration in described second ring portion 531 can ensure that this second ring portion 531 has oscillation space in lower section.
Fig. 4 shows the structure of voice coil loudspeaker voice coil 55 in an embodiment and flexible PCB 7.As shown in figure 4, and combine Fig. 3,
In the present embodiment, this flexible PCB 7 is arranged generally surround the periphery of voice coil loudspeaker voice coil 55, and voice coil loudspeaker voice coil 55 and top dome 57 contact
The end face that end face is generally contacted with flexible PCB 7 and top dome 57 flushes.This flexible PCB 7 and voice coil loudspeaker voice coil 55 are electrically connected
Connect.
Specifically as shown in figure 4, this flexible PCB 7 generally includes the first fixed part being fixedly connected with the first vibrating diaphragm 51
71 the second fixed parts 73 being fixedly connected with top dome 57, and connect the multiple of this first fixed part 71 and the second fixed part 73
Elasticity arm 75.Additionally, the surface away from the first vibrating diaphragm 51 of this first fixed part 71 is fixedly connected with frame 1, that is, this is first solid
Determine portion 71 to be located between the first vibrating diaphragm 51 and frame 1.By making flexible PCB 7 be located at by putting on described flexible PCB 7
The space of the first vibrating diaphragm 51 lower section below first vibrating diaphragm 51, can be made full use of.Therefore, the elasticity arm 75 of this flexible PCB 7 can
Along the first ring portion 513 cabling of the first vibrating diaphragm 51, and then so that the torque arm length that flexible PCB 7 participates in vibration can be increased, and
The stress suffered in vibration processes of this flexible PCB 7 reduces, it is to avoid the flexible PCB 7 causing because the arm of force is shorter breaks
Line.
In this embodiment, it is preferred that, this first fixed part 71 is connected with the first vibrating diaphragm 51 gluing.And the second fixed part 73
It is connected also by glued mode between top dome 57.Certainly, in other embodiments, it would however also be possible to employ other modes are by first
Fixed part 71 and the first vibrating diaphragm 51, and the second fixed part 73 and top dome 57 are connected to each other.
Further as shown in figure 4, in the present embodiment, this first fixed part 71 generally includes the length corresponding to voice coil loudspeaker voice coil 55
A pair first fixed edges 711 of axle 551, corresponding to voice coil loudspeaker voice coil 55 short axle 552 a pair second fixed edges 713, and connect should
First fixed edge 711 and the turning fixed edge 715 of the second fixed edge 713.In the present embodiment, this turning fixed edge 715 difference
Angularly it is obliquely installed with the first fixed edge 711 of its both sides and the second fixed edge 713.This turning fixed edge 715 respectively with
Angle between first fixed edge 711 and the second fixed edge 713 is preferably 120 °～135 °, and is preferably 135 °.Certainly, exist
In other embodiment, this turning fixed edge 715 can also be arc-shaped side, that is, between the first fixed edge 711 and the second fixed edge 713
By arc-shaped side round-corner transition.
Further as shown in figure 4, in the present embodiment, each elasticity arm 75 all includes the major axis 551 parallel to voice coil loudspeaker voice coil 55
The first shaker arm 751, parallel to voice coil loudspeaker voice coil 55 short axle 552 the second shaker arm 753, and be connected to this first shaker arm
The 751 and second turning shaker arms 755 between shaker arm 753.Wherein, this first shaker arm 751, the second shaker arm 753 and
Turning shaker arm 755 together constitutes the arm of force that this flexible PCB 7 participates in vibration, and above-mentioned three shaking in the first vibrating diaphragm 51
Projection on dynamic direction is located in the drop shadow spread in the first ring portion 513.That is, the arm of force of flexible PCB 7 can be along the first ring
Portion 513 cabling.
Wherein, this first shaker arm 751 is drawn from the first fixed edge 715 of the first fixed part 71, its generally with this
One fixed edge 715 is parallel.And the second shaker arm 753 is then connected with the second fixed part 73；This second shaker arm 753 is parallel to first
Second fixed edge 713 of fixed part 71.Turning shaker arm 755 is parallel to the turning fixed edge 715 of the first fixed part 71.Therefore,
This turning shaker arm 755 similarly angularly can be obliquely installed with the first shaker arm 751 and the second shaker arm 753, or should
Turning shaker arm 755 is arcuate structure.
In the present embodiment, this second fixed part 73 is arranged on the side on the second shaker arm 753 near voice coil loudspeaker voice coil 55, and
It is additionally provided with the first linking arm 757 between this second shaker arm 753 and the second fixed part 73.Wherein, this first linking arm 757
Shape in the present embodiment preferably with voice coil loudspeaker voice coil 55 and this first linking arm 757 adjoin partial shape be adapted.
In the present embodiment, the quantity of this elasticity arm 75 is four, and four elasticity arms 75 are with regard to the short axle of this voice coil loudspeaker voice coil 55
552 are symmetrical arranged.Further as shown in figure 4, being located at two elasticity arms 75 corresponding second of short axle 552 the same side of voice coil loudspeaker voice coil 55
Shaker arm 753 is connected by one second linking arm 77.Certainly, in other embodiments it is also possible to and be not provided with such second
Linking arm 77, now each elasticity arm 75 be intervally installed.
Fig. 5 shows another embodiment of this flexible PCB 7.As shown in figure 5, the structure of this flexible PCB 7 is substantially
Upper identical with the structure of the flexible PCB 7 in Fig. 4.Its difference is, in the present embodiment, positioned at the major axis 551 of voice coil loudspeaker voice coil 55
The 3rd linking arm 79 that two second fixed parts 73 of the same side pass through the major axis 551 parallel to this voice coil loudspeaker voice coil 55 is connected with each other.
The utility model passes through described flexible PCB 7 is arranged on below the first vibrating diaphragm 51, can make full use of first and shake
The space of film 51 lower section.Therefore, the elasticity arm 75 of this flexible PCB 7 can along the first ring portion 513 cabling of the first vibrating diaphragm 51,
And then make the torque arm length that flexible PCB 7 participates in vibration can increase, and this flexible PCB suffered answering in vibration processes
Power reduces, it is to avoid the flexible PCB 7 causing because the arm of force is shorter breaks.
Above-described is only embodiment of the present utility model, it should be noted here that the ordinary skill for this area
For personnel, on the premise of creating design without departing from the utility model, improvement can also be made, but these belong to this practicality
New protection domain.
Claims (10)
1. a kind of loudspeaker, including the magnetic circuit system of vibrational system and driving described vibrational system vibration；Described vibrational system
Including the voice coil loudspeaker voice coil of the first vibrating diaphragm, the second vibrating diaphragm, described first vibrating diaphragm of driving and described second diaphragm oscillations sounding, and it is arranged at
Top dome near described voice coil loudspeaker voice coil side on described first vibrating diaphragm；Described voice coil loudspeaker voice coil has major axis and short axle；It is characterized in that, described raise
Sound device also includes the flexible PCB between described first vibrating diaphragm and described second vibrating diaphragm；Described flexible PCB include with
The second fixed part that the first fixed part that described first vibrating diaphragm is fixedly connected is fixedly connected with described top dome and be connected described
One fixed part and multiple elasticity arms of described second fixed part；
Each described elasticity arm include major axis parallel to described voice coil loudspeaker voice coil the first shaker arm, parallel to described voice coil loudspeaker voice coil short axle
Second shaker arm, and it is connected to the turning shaker arm between described first shaker arm and described second shaker arm；Described first
Shaker arm is connected with described first fixed part, and described second shaker arm is connected with described second fixed part.
2. loudspeaker according to claim 1 is it is characterised in that described flexible PCB sets around the periphery of described voice coil loudspeaker voice coil
Put；The end face that the end face that described voice coil loudspeaker voice coil and described top dome contact is contacted with described flexible PCB and described top dome.
3. loudspeaker according to claim 1 is it is characterised in that described first fixed part is included corresponding to described voice coil loudspeaker voice coil
A pair first fixed edges of major axis, corresponding to described voice coil loudspeaker voice coil short axle a pair second fixed edges, and it is solid to connect described first
Deckle and the turning fixed edge of described second fixed edge；Second fixed edge of described first fixed part is parallel to described elasticity arm
Second shaker arm, and the turning fixed edge of described first fixed part is parallel to the turning shaker arm of described elasticity arm；Described first
First fixed edge of fixed part is connected with the first shaker arm of described elasticity arm.
4. loudspeaker according to claim 3 is it is characterised in that described second fixed part is arranged on described second shaker arm
Near the side of described voice coil loudspeaker voice coil, and it is additionally provided with the first linking arm between described second shaker arm and described second fixed part；Institute
State the shape of the first linking arm to be adapted with the shape of part that adjoins of described first linking arm with described voice coil loudspeaker voice coil.
5. loudspeaker according to claim 4 is it is characterised in that the quantity of described elasticity arm is four, and described in four
Elasticity arm is symmetrical with regard to the short axle of described voice coil loudspeaker voice coil；Two elasticity arms corresponding second positioned at short axle the same side of described voice coil loudspeaker voice coil shake
Swing arm passes through the second linking arm and connects.
6. loudspeaker according to claim 5 is it is characterised in that described flexible PCB also includes being connected to described voice coil loudspeaker voice coil
Two second fixed parts of major axis the same side between the 3rd linking arm.
7. loudspeaker according to claim 1 is it is characterised in that described first fixed part is glued with described first vibrating diaphragm even
Connect.
8. loudspeaker according to claim 1 is it is characterised in that described second fixed part is connected with described top dome gluing.
9. loudspeaker according to claim 1 is it is characterised in that also include frame；Described second vibrating diaphragm and described magnetic circuit
System is contained in described frame；Described first fixed part of described flexible PCB is located in described frame and described first and shakes
Between film.
10. loudspeaker according to claim 1 is it is characterised in that described first vibrating diaphragm includes connect fixing with described top dome
The main part that connects, stretching out from described main part forms and the first ring portion around the setting of described main part, and from institute
The first ring portion that states stretches out and is formed and the first connecting portion around described first ring portion setting；
Described first connecting portion is fixedly connected with described first fixed part；Described top dome extend outwardly beyond described main part with
Described second fixed part is fixedly connected；Described first shaker arm, described second shaker arm and described turning shaker arm are described
Projection on the direction of vibration of the first vibrating diaphragm is located in the drop shadow spread in described first ring portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767648.6U CN205961439U (en) | 2016-07-20 | 2016-07-20 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620767648.6U CN205961439U (en) | 2016-07-20 | 2016-07-20 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205961439U true CN205961439U (en) | 2017-02-15 |
Family
ID=57971931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620767648.6U Expired - Fee Related CN205961439U (en) | 2016-07-20 | 2016-07-20 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205961439U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107396253A (en) * | 2017-09-05 | 2017-11-24 | 奥音科技（北京）有限公司 | Electro-acoustic conversion device and its hitch |
| CN107682790A (en) * | 2017-03-31 | 2018-02-09 | 山东共达电声股份有限公司 | A kind of loudspeaker |
| CN107920301A (en) * | 2017-11-15 | 2018-04-17 | 宁波麦度智联科技股份有限公司 | A kind of loudspeaker |
| CN108882122A (en) * | 2017-05-11 | 2018-11-23 | 易音特电子株式会社 | High power micro-speaker with sub- vibrating diaphragm |
| CN108924709A (en) * | 2018-06-25 | 2018-11-30 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN110149577A (en) * | 2019-05-09 | 2019-08-20 | 瑞声光电科技(常州)有限公司 | Microphone device |
| US20200045432A1 (en) * | 2018-08-01 | 2020-02-06 | AAC Technologies Pte. Ltd. | Speaker |
| CN110784085A (en) * | 2019-12-31 | 2020-02-11 | 共达电声股份有限公司 | Linear vibrator |
| WO2020034707A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2020034706A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Speaker |
| CN111586543A (en) * | 2020-05-21 | 2020-08-25 | 昆山联滔电子有限公司 | Balanced armature loudspeaker |
| WO2022006923A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN114630247A (en) * | 2020-12-11 | 2022-06-14 | 昆山康龙电子科技有限公司 | Micro speaker with better amplitude stability |
| CN114760379A (en) * | 2022-04-29 | 2022-07-15 | 歌尔股份有限公司 | Sound production device and electronic equipment |
-
2016
- 2016-07-20 CN CN201620767648.6U patent/CN205961439U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682790B (en) * | 2017-03-31 | 2020-10-27 | 山东共达电声股份有限公司 | Loudspeaker |
| CN107682790A (en) * | 2017-03-31 | 2018-02-09 | 山东共达电声股份有限公司 | A kind of loudspeaker |
| WO2018177035A1 (en) * | 2017-03-31 | 2018-10-04 | 山东共达电声股份有限公司 | Loudspeaker |
| CN108882122A (en) * | 2017-05-11 | 2018-11-23 | 易音特电子株式会社 | High power micro-speaker with sub- vibrating diaphragm |
| CN107396253B (en) * | 2017-09-05 | 2024-01-30 | 奥音科技（镇江）有限公司 | Electroacoustic conversion device and suspension mechanism thereof |
| CN107396253A (en) * | 2017-09-05 | 2017-11-24 | 奥音科技（北京）有限公司 | Electro-acoustic conversion device and its hitch |
| CN107920301A (en) * | 2017-11-15 | 2018-04-17 | 宁波麦度智联科技股份有限公司 | A kind of loudspeaker |
| CN108924709A (en) * | 2018-06-25 | 2018-11-30 | 歌尔股份有限公司 | Microphone device and portable terminal |
| CN108924709B (en) * | 2018-06-25 | 2020-12-08 | 歌尔股份有限公司 | Sound production device and portable terminal |
| US20200045432A1 (en) * | 2018-08-01 | 2020-02-06 | AAC Technologies Pte. Ltd. | Speaker |
| US10932044B2 (en) * | 2018-08-01 | 2021-02-23 | AAC Technologies Pte. Ltd. | Speaker |
| WO2020034706A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Speaker |
| WO2020034707A1 (en) * | 2018-08-13 | 2020-02-20 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN110149577B (en) * | 2019-05-09 | 2021-12-14 | 瑞声光电科技(常州)有限公司 | Sound production device |
| CN110149577A (en) * | 2019-05-09 | 2019-08-20 | 瑞声光电科技(常州)有限公司 | Microphone device |
| CN110784085A (en) * | 2019-12-31 | 2020-02-11 | 共达电声股份有限公司 | Linear vibrator |
| CN111586543A (en) * | 2020-05-21 | 2020-08-25 | 昆山联滔电子有限公司 | Balanced armature loudspeaker |
| US11546697B2 (en) | 2020-05-21 | 2023-01-03 | Lanto Electronic Limited | Balanced armature type speaker |
| WO2022006923A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN114630247A (en) * | 2020-12-11 | 2022-06-14 | 昆山康龙电子科技有限公司 | Micro speaker with better amplitude stability |
| CN114760379A (en) * | 2022-04-29 | 2022-07-15 | 歌尔股份有限公司 | Sound production device and electronic equipment |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170215 |