CN110099340A - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN110099340A CN110099340A CN201910401193.4A CN201910401193A CN110099340A CN 110099340 A CN110099340 A CN 110099340A CN 201910401193 A CN201910401193 A CN 201910401193A CN 110099340 A CN110099340 A CN 110099340A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- inductive block
- magnet steel
- main
- assembly
- 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.)
- Granted
Links
Classifications
-
- 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
- H04R9/025—Magnetic circuit
-
- 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 invention belongs to electroacoustic switch technology fields, provide a kind of loudspeaker.The loudspeaker includes pedestal, vibrational system and the magnetic circuit system for driving vibrational system sounding, and vibrational system includes vibrating diaphragm component and voice coil；Magnetic circuit system includes the first magnetic inductive block being set in pedestal, is fixed on the main magnetic assembly on the first magnetic inductive block, is fixed on the first magnetic inductive block and around the secondary magnetic assembly of main magnetic assembly periphery setting and the second magnetic inductive block being covered in main magnetic assembly and secondary magnetic assembly, magnetic gap is formed between main magnetic assembly and secondary magnetic assembly, voice coil is placed in magnetic gap.Main magnetic assembly, secondary magnetic assembly and the first magnetic inductive block constitute the first magnetic loop across magnetic gap, and main magnetic assembly, secondary magnetic assembly and the second magnetic inductive block constitute the second magnetic loop across magnetic gap, and the first magnetic loop is contrary with the magnetic loop of the second magnetic loop.The magnetic field strength of magnetic gap where first magnetic loop and the second magnetic loop of the invention can substantially enhance voice coil, to obtain good acoustical behavior.
Description
[technical field]
The present invention relates to electroacoustic switch technology field more particularly to a kind of loudspeakers.
[background technique]
With the fast development of science and technology, the popularity rate of loudspeaker is higher and higher, and requirement of the people to loudspeaker not only limits
In the broadcasting of video/audio, more playing the sound quality of sound and reliability to loudspeaker has higher requirement, and loudspeaker is direct
It is related to the stabilization for playing sound timbre quality and product.
Traditional loudspeaker, magnetic field in the magnetic gap that the magnetic loop of magnetic circuit system is formed between main magnet steel and secondary magnet steel
Intensity is low, causes its acoustical behavior poor.
[summary of the invention]
The purpose of the present invention is to provide a kind of loudspeakers, it is intended to solve magnetic circuit system in the loudspeaker of the prior art and generate
Magnetic field strength it is low and lead to the problem of product acoustical behavior difference.
Technical scheme is as follows: a kind of loudspeaker, and the loudspeaker includes the pedestal with storage space, receiving
In the vibrational system in the pedestal and it is contained in pedestal and drives the magnetic circuit system of the vibrational system sounding, the vibration
Dynamic system includes the voice coil of vibrating diaphragm component and the driving vibrating diaphragm component vibration；The magnetic circuit system includes being set to the pedestal
Interior the first magnetic inductive block, is fixed on first magnetic inductive block and surround the main magnetic assembly being fixed on first magnetic inductive block
The secondary magnetic assembly of the main magnetic assembly periphery setting and the second magnetic inductive block being covered in the main magnetic assembly and secondary magnetic assembly,
Magnetic gap is formed between the main magnetic assembly and the secondary magnetic assembly, the voice coil is placed in the magnetic gap；
The main magnetic assembly, secondary magnetic assembly and the first magnetic inductive block constitute the first magnetic loop across the magnetic gap, and
And the main magnetic assembly, secondary magnetic assembly and the second magnetic inductive block constitute the second magnetic loop across the magnetic gap, described first
Magnetic loop is contrary with the magnetic loop of second magnetic loop.
Further, the main magnetic assembly includes the first main magnet steel being placed on first magnetic inductive block, is placed in described
Interior magnetic inductive block on one main magnet steel and the second main magnet steel being folded between the interior magnetic inductive block and second magnetic inductive block；
The pair magnetic assembly includes the first secondary magnet steel being placed on first magnetic inductive block, is placed on the described first secondary magnet steel
Outer magnetic inductive block and the second secondary magnet steel for being folded between the outer magnetic inductive block and second magnetic inductive block；
The first main magnet steel reclines the magnetic pole of the interior magnetic inductive block side and the described second main magnet steel reclines it is described in lead
The magnetic pole of magnetic patch side is identical, and the second secondary magnet steel reclines the magnetic pole of the outer magnetic inductive block side and the first secondary magnet steel pastes
Magnetic pole by the outer magnetic inductive block side is identical, and the second secondary magnet steel recline the outer magnetic inductive block side magnetic pole and institute
State the second main magnet steel recline the interior magnetic inductive block side magnetic pole it is opposite；
The first main magnet steel, interior magnetic inductive block, outer magnetic inductive block, the first secondary magnet steel and the first magnetic inductive block constitute described first
Magnetic loop, the second main magnet steel, interior magnetic inductive block, outer magnetic inductive block, the second secondary magnet steel and the second magnetic inductive block constitute described second
Magnetic loop.
Further, the described first main magnet steel and the described second main magnet steel are symmetrical about the interior magnetic inductive block, and described first
Secondary magnet steel and the described second secondary magnet steel are symmetrical about the outer magnetic inductive block.
Further, the pair magnetic assembly is symmetrical about the main magnetic assembly on any direction.
Further, opening is offered in the middle part of the pedestal, first magnetic inductive block is in the opening.
Further, second magnetic inductive block exposes outside the storage space far from the side of the main magnetic assembly.
Further, the vibrating diaphragm component includes the outer ring being fixed on the pedestal, sets with the central spacer that is folded outward
The interior ring set and the top dome between the outer ring and the interior ring, the magnetic circuit system set are embedded in the infolding
Collar at region in, the loudspeaker further includes being sheathed on second magnetic inductive block periphery and being fixedly connected with the interior ring
Fixed frame.
Further, the material of the fixed frame is magnesium alloy.
Further, the secondary magnetic assembly is equipped with the notch extended along the direction of vibration of the vibrating diaphragm component, the vibrating diaphragm
Component further includes being fixed on the voice coil periphery and extending to the skeleton outside the magnetic circuit system, the skeleton from the notch
The top dome is fixed on close to the side of the storage space in one end far from the voice coil.
Further, the main magnetic assembly is square, and the pair magnetic assembly is divided into the edge of the main magnetic assembly,
The adjacent secondary magnetic assembly interval forms the notch.
The beneficial effects of the present invention are: the present invention is worn by main magnetic assembly, secondary magnetic assembly and the first magnetic inductive block composition
It crosses the first magnetic loop of magnetic gap, and is made up of main magnet steel, secondary magnet steel and the second magnetic inductive block across magnetic gap and with the
The second contrary magnetic loop of the magnetic loop of one magnetic loop, can be substantially improved the magnetic field strength of the magnetic gap where voice coil, from
And the driving force of voice coil is improved, improve voice coil vibrations sensitivity, and then obtain better acoustical behavior；Meanwhile magnetic circuit system
Loudspeaker is penetrated through in height, and the space proportion for occupying loudspeaker is big, further promotes acoustical behavior.
[Detailed description of the invention]
Fig. 1 is the overall structure diagram of loudspeaker provided in an embodiment of the present invention；
Fig. 2 is the decomposition texture schematic diagram of loudspeaker shown in FIG. 1；
Fig. 3 is the schematic cross-sectional view in the direction A-A in Fig. 1；
Fig. 4 is the B area enlarged structure schematic diagram in Fig. 3.
[specific embodiment]
The invention will be further described with embodiment with reference to the accompanying drawing.
It referring to FIG. 1 to 3, is a kind of loudspeaker provided in an embodiment of the present invention.The loudspeaker includes having storage
The pedestal 1 in space 10, the vibrational system 2 being contained in pedestal 1, the magnetic circuit for being contained in pedestal 1 and driving 2 sounding of vibrational system
System 3 and the fixed frame 4 being fixed on one end of vibrational system 2 on magnetic circuit system 3.Vibrational system 2 includes vibrating diaphragm component 21
And the voice coil 22 that driving vibrating diaphragm component 21 vibrates, magnetic circuit system 3 include the first magnetic inductive block 31 being set in pedestal 1, are fixed on
Main magnetic assembly 32 on first magnetic inductive block 31 is fixed on the first magnetic inductive block 31 and around the secondary magnetic of main 32 periphery of magnetic assembly setting
Component 33 and the second magnetic inductive block 34 being covered in main magnetic assembly 32 and secondary magnetic assembly 33, main magnetic assembly 32 and secondary magnetic assembly 33
Between form magnetic gap 30, voice coil 22 is placed in magnetic gap 30, the field drives generated in magnetic gap 30 by magnetic circuit system 3
Voice coil 22 drives vibrating diaphragm component 21 to vibrate, to make a sound using voice coil 22.
Above-mentioned main magnetic assembly 32, secondary magnetic assembly 33 and the first magnetic inductive block 31 constitutes the first magnetic time across magnetic gap 30
Road 301, and main magnetic assembly 32, secondary magnetic assembly 33 and the second magnetic inductive block 34 constitute the second magnetic loop across magnetic gap 30
302, the first magnetic loop 301 is contrary with the magnetic loop of the second magnetic loop 302.
Specifically, refering to shown in Fig. 3 and Fig. 4, main magnetic assembly 32 includes the first main magnet steel being placed on the first magnetic inductive block 31
321, it the interior magnetic inductive block 322 that is placed on the first main magnet steel 321 and is folded between interior magnetic inductive block 322 and the second magnetic inductive block 34
Second main magnet steel 323.Secondary magnetic group 33 include the first secondary magnet steel 331 being placed on the first magnetic inductive block 31, be placed in the first secondary magnet steel
Outer magnetic inductive block 332 on 331 and the second secondary magnet steel 333 being folded between outer magnetic inductive block 332 and the second magnetic inductive block 34.
Wherein, the first main magnet steel 321 reclines the magnetic pole of interior 322 side of magnetic inductive block and the second main magnet steel 323 reclines interior magnetic conduction
The magnetic pole of 322 side of block is identical；Second secondary magnet steel 333 reclines the magnetic pole of outer 332 side of magnetic inductive block and the first pair magnet steel 331 reclines
The magnetic pole of outer 332 side of magnetic inductive block is identical, and the second secondary magnet steel 333 magnetic pole of outer 332 side of magnetic inductive block and second that reclines is led
Magnet steel 323 recline interior 322 side of magnetic inductive block magnetic pole it is opposite.
In above-described embodiment, the first main magnet steel 321 and the second main magnet steel 323 are symmetrical about interior magnetic inductive block 322, the first secondary magnetic
Steel 331 and the second secondary magnet steel 333 are symmetrical about outer magnetic inductive block 332, the symmetry of enhancing structure.First main magnet steel 321, interior magnetic conduction
The secondary magnet steel 331 of block 322, outer magnetic inductive block 332, first and the first magnetic inductive block 31 constitute the first above-mentioned magnetic loop 301, and second is main
The secondary magnet steel 333 of magnet steel 321, interior magnetic inductive block 322, outer magnetic inductive block 332, second and the second magnetic inductive block 34 constitute the second above-mentioned magnetic
Circuit 302, so as to enhance magnetic gap by the first contrary magnetic loop 301 of magnetic loop and the second magnetic loop 302
Magnetic field strength in 30, and then the driving force of voice coil 22 is promoted, improve the vibration sensitivity of voice coil 22, to obtain better acoustics
Performance.
In above-described embodiment, refering to shown in Fig. 2 and Fig. 3, the second magnetic inductive block 34 is exposed far from the side of main magnetic assembly 32
Outside storage space 10, the middle part of pedestal 1 offers opening 11, and the first magnetic inductive block 31 is in opening 11, so as to make the
One magnetic inductive block 31 and the second magnetic inductive block 34 expose pedestal 1, and therefore, magnetic circuit system 3 penetrates through loudspeaker in height, and occupancy is raised
The space proportion of sound device is big, further promotes acoustical behavior.
Secondary magnetic assembly 33 is equipped with the notch 330 extended along the direction of vibration of vibrating diaphragm component 21, and main magnetic assembly 32 is square, secondary
Magnetic assembly 33 is divided into the edge of main magnetic assembly 32, and the adjacent interval of secondary magnetic assembly 33 forms above-mentioned notch 330.Vibrating diaphragm
Component 21 include be fixed on 22 periphery of voice coil and extended to outside magnetic circuit system 3 from notch 330 skeleton 211, be fixed on pedestal 1
On the spaced interior ring 214 of outer ring 213 and outer ring 213 and be set between outer ring 213 and interior ring 214
Top dome 212, in 3 sets of the magnetic circuit system regions surrounded embedded in infolding ring 214, fixed frame 4 is sheathed on 34 periphery of the second magnetic inductive block
And be fixedly connected with interior ring 214, the material of the fixed frame 4 is the magnesium alloy of high-strength low-density, enhances the reliable of connection
Property.Skeleton 211 is fixed on top dome 212 close to the side of storage space 10 far from one end of voice coil 22, and the middle part of top dome 212 has
Through-hole 2120, main magnetic assembly 32 are arranged in through-hole 2120 with secondary magnetic assembly 33, and the voice coil 22 is made to pass through skeleton 211 and vibration system
2 connection work of system.
In the present embodiment, it is located at main 32 surrounding of magnetic assembly there are four secondary magnetic assembly 33 in the surrounding tool of main magnetic assembly 32
Four secondary magnetic steel components 33 it is upper in any direction about main magnetic assembly 32 symmetrically, the compactedness and stability of enhancing structure.
In conclusion in loudspeaker of the invention, by the first main magnet steel 321, interior magnetic inductive block 322, outer magnetic inductive block 332,
One secondary magnet steel 331 and the first magnetic inductive block 31 constitute the first magnetic loop 301, by the second main magnet steel 323, interior magnetic inductive block 322, outside lead
The secondary magnet steel 333 of magnetic patch 332, second and the second magnetic inductive block 34 constitute the second magnetic loop 302, using magnetic loop it is contrary the
One magnetic loop 301 and the second magnetic loop 302 substantially enhance the magnetic field strength of magnetic gap 10, to obtain good acoustical behavior,
Improve the acoustical quality of loudspeaker；Also, magnetic circuit system 3 penetrates through loudspeaker in height, and the space proportion for occupying loudspeaker is big,
Further promote acoustical behavior.
Above-described is only embodiments of the present invention, it should be noted here that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection model of the invention
It encloses.
Claims (10)
1. a kind of loudspeaker, the loudspeaker includes the pedestal with storage space, the vibrational system that is contained in the pedestal
And it is contained in pedestal and drives the magnetic circuit system of the vibrational system sounding, the vibrational system includes vibrating diaphragm component and drive
Move the voice coil of the vibrating diaphragm component vibration；It is characterized in that, the magnetic circuit system includes that first be set in the pedestal is led
Magnetic patch, the main magnetic assembly being fixed on first magnetic inductive block are fixed on first magnetic inductive block and around the main magnetic group
The secondary magnetic assembly of part periphery setting and the second magnetic inductive block being covered in the main magnetic assembly and secondary magnetic assembly, the main magnetic group
Magnetic gap is formed between part and the secondary magnetic assembly, the voice coil is placed in the magnetic gap；
The main magnetic assembly, secondary magnetic assembly and the first magnetic inductive block constitute the first magnetic loop across the magnetic gap, and institute
Main magnetic assembly, secondary magnetic assembly and the second magnetic inductive block composition are stated across the second magnetic loop of the magnetic gap, first magnetic returns
Road is contrary with the magnetic loop of second magnetic loop.
2. loudspeaker according to claim 1, which is characterized in that the main magnetic assembly includes being placed in first magnetic inductive block
On the first main magnet steel, the interior magnetic inductive block that is placed on the described first main magnet steel and be folded in the interior magnetic inductive block and described second
The second main magnet steel between magnetic inductive block；
The pair magnetic assembly include the first secondary magnet steel being placed on first magnetic inductive block, be placed in it is outer on the described first secondary magnet steel
Magnetic inductive block and the second secondary magnet steel being folded between the outer magnetic inductive block and second magnetic inductive block；
The first main magnet steel reclines the magnetic pole of the interior magnetic inductive block side and the described second main magnet steel the reclines interior magnetic inductive block
The magnetic pole of side is identical, the second secondary magnet steel reclines the magnetic pole of the outer magnetic inductive block side and the first secondary magnet steel reclines institute
The magnetic pole for stating outer magnetic inductive block side is identical, and the second secondary magnet steel reclines the magnetic pole and described the of the outer magnetic inductive block side
Two main magnet steel recline the interior magnetic inductive block side magnetic pole it is opposite；
The first main magnet steel, interior magnetic inductive block, outer magnetic inductive block, the first secondary magnet steel and the first magnetic inductive block constitute first magnetic and return
Road, the second main magnet steel, interior magnetic inductive block, outer magnetic inductive block, the second secondary magnet steel and the second magnetic inductive block constitute second magnetic and return
Road.
3. loudspeaker according to claim 2, which is characterized in that the first main magnet steel and the described second main magnet steel about
The interior magnetic inductive block is symmetrical, and the described first secondary magnet steel and the described second secondary magnet steel are symmetrical about the outer magnetic inductive block.
4. loudspeaker according to claim 1, which is characterized in that the pair magnetic assembly is about the main magnetic on any direction
Component is symmetrical.
5. loudspeaker according to claim 1, which is characterized in that offer opening in the middle part of the pedestal, described first
Magnetic inductive block is in the opening.
6. loudspeaker according to claim 1, which is characterized in that second magnetic inductive block far from the main magnetic assembly one
Side exposes outside the storage space.
7. loudspeaker described in any one of -6 according to claim 1, which is characterized in that the vibrating diaphragm component includes being fixed on
Outer ring on the pedestal, with the interior ring for being folded outward central spacer setting and be set to the outer ring and the interior ring
Between top dome, magnetic circuit system set embedded in the infolding collar at region in, the loudspeaker further includes being sheathed on institute
The fixed frame stating the second magnetic inductive block periphery and being fixedly connected with the interior ring.
8. loudspeaker according to claim 7, which is characterized in that the material of the fixed frame is magnesium alloy.
9. loudspeaker according to claim 7, which is characterized in that the pair magnetic assembly is equipped with the vibration along the vibrating diaphragm component
The notch that dynamic direction extends, the vibrating diaphragm component further include being fixed on the voice coil periphery and extending to from the notch described
Skeleton outside magnetic circuit system, the skeleton are fixed on the top dome close to the one of the storage space far from one end of the voice coil
Side.
10. loudspeaker according to claim 9, which is characterized in that the main magnetic assembly is square, the pair magnetic assembly point
Set on the edge of the main magnetic assembly, the adjacent secondary magnetic assembly interval forms the notch.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401193.4A CN110099340B (en) | 2019-05-15 | 2019-05-15 | Loudspeaker |
| PCT/CN2019/087602 WO2020228051A1 (en) | 2019-05-15 | 2019-05-20 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401193.4A CN110099340B (en) | 2019-05-15 | 2019-05-15 | Loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110099340A true CN110099340A (en) | 2019-08-06 |
| CN110099340B CN110099340B (en) | 2020-08-07 |
Family
ID=67448082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910401193.4A Expired - Fee Related CN110099340B (en) | 2019-05-15 | 2019-05-15 | Loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110099340B (en) |
| WO (1) | WO2020228051A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641903A (en) * | 2020-05-20 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sounding device |
| CN111935608A (en) * | 2020-06-30 | 2020-11-13 | 瑞声新能源发展(常州)有限公司科教城分公司 | Vibrating diaphragm subassembly and speaker |
| WO2021097956A1 (en) * | 2019-11-21 | 2021-05-27 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021097993A1 (en) * | 2019-11-21 | 2021-05-27 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120177247A1 (en) * | 2011-01-07 | 2012-07-12 | American Audio Components Inc. | Electromagnetic transducer |
| US20140056465A1 (en) * | 2012-08-27 | 2014-02-27 | Aac Acoustic Technologies (Changzhou) Co., Ltd. | Speaker |
| CN203608348U (en) * | 2013-10-29 | 2014-05-21 | 瑞声光电科技(常州)有限公司 | Magnetic circuit system and loudspeaker using same |
| US20160323674A1 (en) * | 2015-05-01 | 2016-11-03 | Apple Inc. | Audio speaker having a high-saturation magnetic insert |
| CN205847585U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN205847566U (en) * | 2016-07-01 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN205847592U (en) * | 2016-07-21 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN206389552U (en) * | 2017-01-12 | 2017-08-08 | 瑞声科技(沭阳)有限公司 | Magnetic speaker |
| US20170347201A1 (en) * | 2016-05-26 | 2017-11-30 | AAC Technologies Pte. Ltd. | Miniature sounder |
-
2019
- 2019-05-15 CN CN201910401193.4A patent/CN110099340B/en not_active Expired - Fee Related
- 2019-05-20 WO PCT/CN2019/087602 patent/WO2020228051A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120177247A1 (en) * | 2011-01-07 | 2012-07-12 | American Audio Components Inc. | Electromagnetic transducer |
| US20140056465A1 (en) * | 2012-08-27 | 2014-02-27 | Aac Acoustic Technologies (Changzhou) Co., Ltd. | Speaker |
| CN203608348U (en) * | 2013-10-29 | 2014-05-21 | 瑞声光电科技(常州)有限公司 | Magnetic circuit system and loudspeaker using same |
| US20160323674A1 (en) * | 2015-05-01 | 2016-11-03 | Apple Inc. | Audio speaker having a high-saturation magnetic insert |
| US20170347201A1 (en) * | 2016-05-26 | 2017-11-30 | AAC Technologies Pte. Ltd. | Miniature sounder |
| CN205847566U (en) * | 2016-07-01 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN205847585U (en) * | 2016-07-20 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN205847592U (en) * | 2016-07-21 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Speaker |
| CN206389552U (en) * | 2017-01-12 | 2017-08-08 | 瑞声科技(沭阳)有限公司 | Magnetic speaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021097956A1 (en) * | 2019-11-21 | 2021-05-27 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2021097993A1 (en) * | 2019-11-21 | 2021-05-27 | 瑞声声学科技(深圳)有限公司 | Sound generating device |
| CN111641903A (en) * | 2020-05-20 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sounding device |
| CN111935608A (en) * | 2020-06-30 | 2020-11-13 | 瑞声新能源发展(常州)有限公司科教城分公司 | Vibrating diaphragm subassembly and speaker |
| CN111935608B (en) * | 2020-06-30 | 2022-03-01 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110099340B (en) | 2020-08-07 |
| WO2020228051A1 (en) | 2020-11-19 |
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