CN212486779U - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN212486779U CN212486779U CN202021250425.5U CN202021250425U CN212486779U CN 212486779 U CN212486779 U CN 212486779U CN 202021250425 U CN202021250425 U CN 202021250425U CN 212486779 U CN212486779 U CN 212486779U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- magnetic
- loudspeaker
- frame
- vibrating diaphragm
- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Abstract
The utility model provides a loudspeaker, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system comprises a first vibrating diaphragm, a framework, a voice coil connected with the framework and an airflow system fixed on the framework; the airflow system comprises a first breathable assembly, a second breathable assembly and an elastic membrane connected between the first breathable assembly and the second breathable assembly, and the elastic membrane is enclosed by the first breathable assembly and the second breathable assembly to form a sealed cavity. The utility model provides an air current system and first vibrating diaphragm synchronous oscillation, the air current in the air current system passes through the outside intercommunication outside trachea and the first vibrating diaphragm moreover. When the first vibrating diaphragm vibrates, the airflow system also vibrates, and the sound wave airflow in the airflow system is also transmitted to the outside the first vibrating diaphragm through the air pipe. This structural design has increased the inside holistic effective vibration area of speaker, and then, promotes the low frequency response potentiality and the medium frequency sensitivity of speaker.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an acoustics technical field, in particular to speaker.
[ background of the invention ]
Prior art, speaker vibrating diaphragm and voice coil loudspeaker voice coil are connected, and the vibration through the voice coil loudspeaker voice coil drives the vibration of vibrating diaphragm for the speaker sound production. The vibration of the diaphragm determines the amount of sound produced by the speaker and the sensitivity of the audio. In order to improve the vibration effect of the diaphragm, a ball top is usually added on the diaphragm.
When the vibrating diaphragm vibrates under the drive of the voice coil, the center of the vibrating diaphragm vibrates, the edge of the vibrating diaphragm needs time due to vibration conduction, and the amplitude in the transmission process has loss, so that the sound production volume of the vibration of the edge of the vibrating diaphragm is small and the audio frequency lags. Therefore, the effective vibration area of the diaphragm for generating sound determines the volume and audio sensitivity of the speaker, and the volume and audio sensitivity of the speaker can be improved only by increasing the effective vibration area.
Therefore, it is necessary to provide a speaker to solve the problem that the effective vibration area of the speaker is too small.
[ Utility model ] content
An object of the utility model is to provide a can increase effective vibration area's speaker.
The technical scheme of the utility model as follows: a loudspeaker comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed on the basin frame, the magnetic circuit system comprises a first magnetic yoke and a first magnet part which is fixed on the first magnetic yoke, faces one side of the vibration system and forms a magnetic gap, the first magnet part is provided with a containing cavity which is located in the middle and is arranged at a distance from the magnetic gap, the vibration system comprises a first vibrating diaphragm which is fixed on the basin frame and is used for vibrating and sounding, a framework which is fixed on one side of the vibrating diaphragm, faces one side of the first magnet part, a voice coil which is connected with the framework and is suspended in the magnetic gap, and an airflow system which is fixed on the framework and at least partially contained in the containing cavity;
the airflow system comprises a first ventilating assembly, a second ventilating assembly and an elastic membrane, wherein the first ventilating assembly is fixed on the framework and is arranged opposite to the first vibrating diaphragm at an interval, the second ventilating assembly is arranged on one side, away from the first vibrating diaphragm, of the first ventilating assembly and is arranged at an interval with the first ventilating assembly, the elastic membrane is connected between the first ventilating assembly and the second ventilating assembly, and the elastic membrane, the first ventilating assembly and the second ventilating assembly are arranged in an enclosing mode to form a sealed cavity; the elastic membrane is sunken towards the direction of the closed cavity;
the first magnetic yoke is provided with a bulge part which protrudes and extends towards the direction of the first vibrating diaphragm and is accommodated in the accommodating cavity, and the second ventilating assembly is supported on the bulge part; be equipped with on the first ventilative subassembly and run through first through-hole on it along the vibration direction, be equipped with on the first vibrating diaphragm and run through second through-hole on it along the vibration direction, airflow system still locates including pressing from both sides first ventilative subassembly with trachea between the first vibrating diaphragm, the trachea intercommunication first through-hole with the second through-hole is in order to form ventilation channel, ventilation channel will airtight chamber and external intercommunication.
Preferably, the elastic membrane comprises a side wall surrounding the closed cavity, and the side wall is concave towards the inner part of the closed cavity.
Preferably, the first ventilation assembly comprises a first sound film with the first through hole and a first connecting ring surrounding the first sound film, the inner edge of the first connecting ring is connected with the first sound film, and the outer edge of the first connecting ring is fixed between the framework and the elastic membrane.
Preferably, the second ventilation assembly comprises a second sound film located at the middle position and a second connecting ring surrounding the second sound film, the inner edge of the second connecting ring is connected with the second sound film, and the outer edge of the second connecting ring is fixedly connected with one end of the elastic diaphragm far away from the first connecting ring; the second sound film is supported by the boss.
Preferably, the second sound film is provided with a third through hole penetrating through the second sound film along the vibration direction, and at least part of the protruding portion of the first magnetic yoke extends into the third through hole and is in sealing connection with the side wall of the third through hole.
Preferably, the framework comprises a framework main body connected with the first vibrating diaphragm and a support frame extending out from one end of the framework main body far away from the first vibrating diaphragm, and the voice coil surrounds the framework and is fixedly connected with the support frame.
Preferably, the frame main body is rectangular, and the number of the support frames is 4, and the support frames are distributed at four corners of the frame main body.
Preferably, the first magnet portion includes a first main magnetic steel and a first sub magnetic steel surrounding the first main magnetic steel and opposed to each other at an interval to form the magnetic gap, and the accommodating cavity is surrounded by the first main magnetic steel.
Preferably, the number of the first main magnetic steels is four, the four first main magnetic steels are opposite end to surround to form a rectangle, and the number of the first auxiliary magnetic steels is also four.
Preferably, the magnetic circuit system further comprises a second magnetic yoke opposite to the first magnetic yoke at an interval, the second magnetic yoke comprises a frame fixedly connected with the basin frame and an auxiliary magnetic conductive sheet which extends inwards from the inner side of the frame and is fixedly connected with a first auxiliary magnetic steel, and a main magnetic sheet connected with the first main magnetic steel is arranged on one side of the first main magnetic steel, which is far away from the first magnetic yoke.
Preferably, one side of the auxiliary magnetic conductive sheet, which is far away from the first magnetic yoke, is further provided with an auxiliary magnetic steel connected with the auxiliary magnetic conductive sheet.
Preferably, the first diaphragm comprises a diaphragm main body and a third connecting piece, the diaphragm main body comprises a central part located in the middle, a folding ring part surrounding the central part and connected with the central part, and a fixing part surrounding the folding ring part and connected with the folding ring part, the fixing part is fixedly connected with one end of the basin frame far away from the first magnetic yoke, and the second through hole penetrates through the central part and the third connecting piece.
Preferably, the speaker further comprises a flexible circuit board electrically connected to the voice coil.
Preferably, the airflow system is rectangular, and the cross section of the elastic membrane along the direction parallel to the first ventilation assembly is long-edge-shaped.
The beneficial effects of the utility model reside in that: the utility model discloses the air current system and the first vibrating diaphragm synchronous oscillation that set up, the air current in the air current system passes through the outside intercommunication outside trachea and the first vibrating diaphragm moreover. When the first vibrating diaphragm vibrates, the airflow system also vibrates, and the sound wave airflow in the airflow system is also transmitted to the outside the first vibrating diaphragm through the air pipe. This structural design has increased airflow system's vibration area again on the basis of the effectual vibration area of first vibrating diaphragm to increase the inside holistic effective vibration area of speaker, and then, promote the low frequency response potentiality and the medium frequency sensitivity of speaker.
[ description of the drawings ]
Fig. 1 is a schematic perspective view of a speaker according to an embodiment of the present invention;
fig. 2 is an exploded view of a speaker according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a schematic perspective view of a first yoke according to the present invention;
fig. 5 is an assembly view of the first yoke and the first magnet portion of the present invention;
fig. 6 is an assembly view of the first yoke, first magnet portion, air flow system, and skeleton of the present invention;
fig. 7 is an assembly view of the first yoke, the first magnet portion, the airflow system, the bobbin, the voice coil, the second yoke, and the auxiliary magnetic steel of the present invention;
fig. 8 is a perspective view of the air flow system of the present invention.
[ detailed description ] embodiments
The present invention will be further described with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, embodiments of the present invention provide a speaker. The loudspeaker comprises a basin frame 1, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed on the basin frame 1. In this embodiment, the frame 1 is ring-shaped and is used for providing a fixed support function for the vibration system and the magnetic circuit system.
In the embodiment of the present invention, the magnetic circuit system includes the first magnetic yoke 31 for magnetic conduction, the first magnet portion 33, the second magnetic yoke 35 for magnetic conduction, and the auxiliary magnetic steel 5. The first yoke 31 is used for magnetically guiding the first magnet portion 33, and a protrusion 311 is further provided at the center thereof. The first magnet portion 33 is fixed to the first yoke 31 on the side facing the vibration system 2.
Referring to fig. 4-7, in the embodiment of the present invention, the first magnet portion 33 includes a first main magnetic steel 331 and a first sub magnetic steel 332 fixedly connected to the first magnetic yoke 31. The number of the first main magnetic steel 331 and the number of the first auxiliary magnetic steel 332 are four, the four first main magnetic steels 331 are opposite end to form a rectangle in a surrounding manner, and the middle position of the rectangle is an accommodating cavity 34 for accommodating the airflow system 4. Four first sub magnetic steels 332 surround the first main magnetic steel 331 and are spaced apart from each other to form the magnetic gap 32. The voice coil 23 after energization generates an electromagnetically induced force in the magnetic gap 32, thereby generating vibration.
In the embodiment of the present invention, the second magnetic yoke 35 is used for playing a magnetic conductive role for the first auxiliary magnetic steel 332, which includes a frame 351 fixedly connected to the basin stand 1 and an auxiliary magnetic conductive sheet 352 inwardly extending from the inside of the frame 351. The auxiliary magnetic conductive plate 352 is fixedly connected with the first auxiliary magnetic steel 332 to play a role of magnetic conduction for the first auxiliary magnetic steel 332. In order to provide the first main magnetic steel 331 with a magnetic conductive effect, the magnetic circuit system 3 further includes a main magnetic sheet 333, and the main magnetic sheet 333 is connected to the first main magnetic steel 331 and is located on a side of the first main magnetic steel 331 away from the first magnetic yoke 31.
In the embodiment of the present invention, the auxiliary magnetic steel 5 is used to strengthen the magnetic field intensity inside the speaker, and the auxiliary magnetic steel 5 is connected to the auxiliary magnetic conductive plate 352 and located at the side of the auxiliary magnetic conductive plate 352 away from the first magnetic yoke 31.
In the embodiment of the present invention, the vibration system includes the first vibrating diaphragm 21 that vibrates to generate sound, the framework 22 that is connected to the first vibrating diaphragm 21, the voice coil 23 that is connected to the framework 22, and at least part of the voice coil is accommodated in the airflow system 4 that holds the cavity 34.
As shown in fig. 2, 3 and 8, the airflow system 4 is a closed cavity 44 having a rectangular shape, and a part of the airflow system 4 is accommodated in the airflow system 4 of the accommodating cavity 34. Comprising a first breathable component 41, a second breathable component 42 and an elastic membrane 43 connected between said first breathable component 41 and said second breathable component 42. First ventilative subassembly 41, second ventilative subassembly 42 and elastic diaphragm 43 three enclose and establish and form airtight chamber 44, in order to make the air current conduction of airtight chamber 44 to the external world first ventilative subassembly 41 with be equipped with trachea 45 between the first vibrating diaphragm 21, still be equipped with first through-hole 411 on first ventilative subassembly 41, trachea 45 connects first through-hole 411 and second through-hole 211 to switch on the air current of airtight chamber 44 to the external world outside first vibrating diaphragm 21.
Preferably, the first ventilating assembly 41 includes a first sound diaphragm 412 and a first connecting ring 413, the first connecting ring 413 surrounds the first sound diaphragm 412, and an inner edge of the first connecting ring 413 is connected to the first sound diaphragm 412 and an outer edge of the first connecting ring is connected to the framework 22 and fixed between the framework 22 and the elastic diaphragm 43. In order to conduct the air flow from the sealed cavity 44 to the outside, a first through hole 411 is formed in the first sound film 412, and the first through hole 411 penetrates through the first sound film 412 along the vibration direction.
As shown in fig. 2-3 and fig. 8, the second air-permeable component 42 is opposite to and spaced apart from the first air-permeable component 41, and the second air-permeable component 42 is located on a side of the first air-permeable component 41 away from the first diaphragm 21 and supported by the protrusion 311 of the first magnetic yoke 31. More specifically, the second air-permeable assembly 42 includes a second sound film 421 and a second connection ring 422, the second sound film 421 is located at the middle position of the second air-permeable assembly 42, the second connection ring 422 surrounds the second sound film 421, the inner edge of the second connection ring 422 is connected to the second sound film 421, and the outer edge is fixedly connected to the end of the elastic diaphragm 43 away from the first connection ring 413. Third through holes 423 are provided in the second sound diaphragm 421, and the third through holes 423 penetrate the second sound diaphragm 421 in the vibration direction. The protruding portion 311 of the first magnetic yoke 31 at least partially extends into the third through hole 423 and is connected with the sidewall of the third through hole 423 in a sealing manner, so as to ensure that the second sound diaphragm 421 is fixed.
In the embodiment of the present invention, the airflow system 4 is rectangular, the elastic membrane 43 is parallel to the cross section of the direction of the first ventilating assembly 41 is long-side shape, the elastic membrane 43 includes a side wall 431 around the forming of the closed cavity, and the side wall 431 is sunken towards the inside of the closed cavity. The concave structure design is beneficial to the whole synchronization of the air flow system 4 and the vibration of the first diaphragm 21.
In the embodiment of the present invention, the first diaphragm 21 includes a diaphragm main body 212 and a third connecting member 213. The diaphragm body 212 includes a center portion 2121, a flexure portion 2122 surrounding and connected to the center portion 2121, and a fixing portion 2123 surrounding and connected to the flexure portion 2122. The fixing part 2123 is fixedly connected with one end of the frame 1 far away from the first magnetic yoke 31, so that the edge end of the first diaphragm 21 is fixedly supported by the frame 1. In order to communicate the sealed cavity 44 with the outside of the first diaphragm 21, a second through hole 211 is formed in the first diaphragm 21, and the second through hole 211 penetrates through the central portion 2121 of the first diaphragm 21 and the third connecting member 213. The third connecting member 213 is fixed to the center portion 2121 of the diaphragm body 212 to reinforce the stiffness of the diaphragm body 212.
In the embodiment of the present invention, the framework 22 is used to connect the first diaphragm 21, the voice coil 23 and the airflow system 4, so that the voice coil 23 drives the first diaphragm 21 and the airflow system 4 to vibrate synchronously. More specifically, the framework 22 includes a frame body 221 and a support 222 extending from one end of the frame body 221 away from the first diaphragm 21. The frame body 221 has one end connected to the first diaphragm 21 and the other end connected to an outer edge of the first connection ring 413. The voice coil 23 surrounds the bobbin 22 and is fixedly connected with the support frame 222, that is, the voice coil 23 is sleeved on the support frame 222, in order to enable the voice coil 23 to be stably connected with the bobbin 22, a support leg 223 extending from the support frame 222 is further arranged at one end of the support frame 222 far away from the first vibrating diaphragm 21, and one end of the voice coil 23 far away from the first vibrating diaphragm 21 is fixedly connected with the support leg 223. The number of the supporting frames 222 is 4, and the supporting frames are distributed at four corners of the frame body 221.
The speaker further includes a flexible circuit board 6 electrically connected to the voice coil 23 for energizing the voice coil 23. In the embodiment of the present invention, the flexible circuit board 6 is mounted on the frame 351 of the second yoke 35.
The utility model provides an airflow system 4 and first vibrating diaphragm 21 vibrate under the drive of voice coil loudspeaker voice coil 23 and skeleton 22 in step, and the air current in airflow system 4 passes through the outside intercommunication outside trachea 45 and first vibrating diaphragm 21 moreover. When the first diaphragm 21 vibrates, the airflow system 4 also vibrates, and the sound wave airflow in the airflow system 4 also propagates to the outside the first diaphragm 21 through the air pipe 45. This structural design has increased airflow system 4's vibration area again on first vibrating diaphragm 21 effectual vibration area's basis to increased the inside holistic effective vibration area of speaker, and then, promoted the low frequency response potentiality and the medium frequency sensitivity of speaker.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (15)
1. A loudspeaker comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are fixed on the basin frame, the magnetic circuit system comprises a first magnetic yoke and a first magnet part which is fixed on the first magnetic yoke, faces one side of the vibration system and forms a magnetic gap, the first magnet part is provided with a containing cavity which is located in the middle and is arranged at a distance with the magnetic gap, the vibration system comprises a first vibrating diaphragm which is fixed on the basin frame and is used for vibrating and sounding, a framework which is fixed on one side of the vibrating diaphragm, faces the first magnet part, a voice coil which is connected with the framework and is suspended in the magnetic gap, and an airflow system which is fixed on the framework and is at least partially contained in the containing cavity;
the airflow system comprises a first ventilating assembly, a second ventilating assembly and an elastic membrane, wherein the first ventilating assembly is fixed on the framework and is arranged opposite to the first vibrating diaphragm at an interval, the second ventilating assembly is arranged on one side, away from the first vibrating diaphragm, of the first ventilating assembly and is arranged at an interval with the first ventilating assembly, the elastic membrane is connected between the first ventilating assembly and the second ventilating assembly, and the elastic membrane, the first ventilating assembly and the second ventilating assembly are arranged in an enclosing mode to form a sealed cavity; the elastic membrane is sunken towards the direction of the closed cavity;
the first magnetic yoke is provided with a bulge part which protrudes and extends towards the direction of the first vibrating diaphragm and is accommodated in the accommodating cavity, and the second ventilating assembly is supported on the bulge part; be equipped with on the first ventilative subassembly and run through first through-hole on it along the vibration direction, be equipped with on the first vibrating diaphragm and run through second through-hole on it along the vibration direction, airflow system still locates including pressing from both sides first ventilative subassembly with trachea between the first vibrating diaphragm, the trachea intercommunication first through-hole with the second through-hole is in order to form ventilation channel, ventilation channel will airtight chamber and external intercommunication.
2. The loudspeaker in accordance with claim 1, wherein said elastomeric diaphragm includes a sidewall surrounding said closed chamber, said sidewall being concave toward an interior of said closed chamber.
3. The loudspeaker of claim 1, wherein the first vent assembly comprises a first diaphragm having the first through hole and a first connecting ring surrounding the first diaphragm, an inner edge of the first connecting ring being connected to the first diaphragm, and an outer edge of the first connecting ring being fixed between the frame and the elastic diaphragm.
4. A loudspeaker according to claim 1 or 3, wherein the second air-permeable member comprises a second diaphragm at an intermediate position and a second coupling ring surrounding the second diaphragm, an inner edge of the second coupling ring being connected to the second diaphragm and an outer edge of the second coupling ring being fixedly connected to an end of the flexible diaphragm remote from the first coupling ring; the second sound film is supported by the boss.
5. A loudspeaker according to claim 4, wherein the second diaphragm is provided with a third aperture extending therethrough in the direction of vibration, the boss of the first yoke projecting at least partially into the third aperture and forming a sealed connection with a side wall of the third aperture.
6. The loudspeaker of claim 1, wherein the bobbin comprises a frame body connected to the first diaphragm and a support frame extending from an end of the frame body away from the first diaphragm, and the voice coil surrounds the bobbin and is fixedly connected to the support frame.
7. The loudspeaker of claim 6, wherein a supporting leg extending from the supporting frame is further disposed at one end of the supporting frame away from the first diaphragm, and one end of the voice coil away from the first diaphragm is fixedly connected to the supporting leg.
8. The speaker as claimed in claim 6 or 7, wherein the frame body is rectangular, and the number of the support frames is 4, which are distributed at four corners of the frame body.
9. The loudspeaker of claim 1, wherein said first magnet portion includes a first main magnet and a first sub magnet surrounding said first main magnet and spaced apart from each other to form said magnetic gap, said receiving chamber being surrounded by said first main magnet.
10. The loudspeaker of claim 9, wherein the number of the first main magnetic steels is four, the four first main magnetic steels are opposite to each other end to form a rectangle, and the number of the first secondary magnetic steels is also four.
11. The loudspeaker of claim 9, wherein the magnetic circuit further comprises a second magnetic yoke spaced from and opposing the first magnetic yoke, the second magnetic yoke comprising a frame fixedly connected to the frame and a secondary magnetic conductive plate extending inwardly from an inner side of the frame and fixedly connected to a first secondary magnetic steel, and a side of the first primary magnetic steel remote from the first magnetic yoke is provided with a primary magnetic plate connected thereto.
12. The loudspeaker of claim 11, wherein the side of the auxiliary magnetic conductive plate away from the first magnetic yoke is further provided with an auxiliary magnetic steel connected with the auxiliary magnetic conductive plate.
13. The loudspeaker of claim 1, wherein the first diaphragm comprises a diaphragm body and a third connecting member, the diaphragm body comprises a central portion at an intermediate position, a corrugated portion surrounding and connected to the central portion, and a fixing portion surrounding and connected to the corrugated portion, the fixing portion is fixedly connected to one end of the frame away from the first magnetic yoke, and the second through hole penetrates through the central portion and the third connecting member.
14. The speaker of claim 1, further comprising a flexible circuit board electrically connected to the voice coil.
15. A loudspeaker according to claim 1, wherein the airflow system is rectangular and the cross-section of the flexible membrane in a direction parallel to the first air-permeable member is long-side shaped.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250425.5U CN212486779U (en) | 2020-06-30 | 2020-06-30 | Loudspeaker |
| PCT/CN2020/100718 WO2022000519A1 (en) | 2020-06-30 | 2020-07-07 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250425.5U CN212486779U (en) | 2020-06-30 | 2020-06-30 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486779U true CN212486779U (en) | 2021-02-05 |
Family
ID=74456318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021250425.5U Expired - Fee Related CN212486779U (en) | 2020-06-30 | 2020-06-30 | Loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212486779U (en) |
| WO (1) | WO2022000519A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202799131U (en) * | 2012-08-27 | 2013-03-13 | 瑞声光电科技(常州)有限公司 | Micro loudspeaker |
| WO2014180016A1 (en) * | 2013-05-08 | 2014-11-13 | 歌尔声学股份有限公司 | Tablet woofer |
| CN206923017U (en) * | 2017-06-20 | 2018-01-23 | 瑞声科技(新加坡)有限公司 | Vibrating diaphragm, microphone device and electronic equipment |
| CN209375908U (en) * | 2018-12-30 | 2019-09-10 | 瑞声声学科技(深圳)有限公司 | Microphone device |
| WO2020227956A1 (en) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Magnetic circuit system and a loudspeaker using same |
| CN209105448U (en) * | 2019-06-10 | 2019-07-12 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN210781334U (en) * | 2019-11-25 | 2020-06-16 | 瑞声科技(新加坡)有限公司 | Speaker and audio equipment |
-
2020
- 2020-06-30 CN CN202021250425.5U patent/CN212486779U/en not_active Expired - Fee Related
- 2020-07-07 WO PCT/CN2020/100718 patent/WO2022000519A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022000519A1 (en) | 2022-01-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20210205 |