CN108989934A - Earphone - Google Patents
Earphone Download PDFInfo
- Publication number
- CN108989934A CN108989934A CN201810825119.0A CN201810825119A CN108989934A CN 108989934 A CN108989934 A CN 108989934A CN 201810825119 A CN201810825119 A CN 201810825119A CN 108989934 A CN108989934 A CN 108989934A
- Authority
- CN
- China
- Prior art keywords
- earphone
- vibrating diaphragm
- fixed frame
- vibration module
- voice coil
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Headphones And Earphones (AREA)
Abstract
The present invention discloses a kind of earphone, comprising: ear casing, it is interior to be equipped with installation cavity；And sounding device, including magnetic circuit system, voice coil, the vibrating diaphragm for being connected to the voice coil and the vibrating diaphragm fixed frame being connect with the vibrating diaphragm；The magnetic circuit system is installed on the installation cavity, and has magnetic gap；The voice coil, the vibrating diaphragm and the vibrating diaphragm fixed frame connect into a vibration module, and the vibration module is integrally detachably installed to the installation cavity, and the voice coil is at least partially inserted into the magnetic gap.Technology of the invention can case realize by replacement unlike material vibrating diaphragm, to experience the earphone of different sound quality.
Description
Technical field
The present invention relates to microphone device technical field, in particular to a kind of earphone.
Background technique
Currently, used sounding device is usually integral type loudspeaker in common earphone, however, vibrating diaphragm is difficult to
Replacement is separated from integral type loudspeaker, therefore, it is impossible to by way of the vibrating diaphragm for replacing unlike material, to experience different sound quality
Earphone.
Summary of the invention
The main object of the present invention is to propose a kind of earphone, it is intended to the vibrating diaphragm by replacement unlike material is realized, to experience
The earphone of different sound quality.
To achieve the above object, earphone proposed by the present invention includes:
Ear casing, it is interior to be equipped with installation cavity；And
Sounding device, including magnetic circuit system, voice coil, the vibrating diaphragm for being connected to the voice coil and the vibration being connect with the vibrating diaphragm
Film fixed frame；
The magnetic circuit system is installed on the installation cavity, and has magnetic gap；
The voice coil, the vibrating diaphragm and the vibrating diaphragm fixed frame connect into a vibration module, and the vibration module is integrally
It is detachable to install to the installation cavity, and the voice coil is at least partially inserted into the magnetic gap.
Optionally, the ear casing includes the earphone rear shell being mutually detachably connected and earphone front housing, and the installation cavity is formed
In the earphone rear shell, the earphone front housing is connected as one with the vibration module.
Optionally, the vibrating diaphragm fixed frame include in both ends open tubular fixed frame ontology and fixed pressure ring, it is described
The outer edge of vibrating diaphragm is clamped and fixed between the fixed frame ontology and the fixed pressure ring.
Optionally, the inward flange of one end face of fixed frame ontology is equipped with installation step, and the outer edge of the vibrating diaphragm overlaps
In the installation step, the fixed pressure ring close-fitting is caught in the installation step, is detached from the erecting bed to limit the vibrating diaphragm
Rank.
Optionally, the earphone further includes two connection terminals, and two leads of the voice coil and two connection terminal one are a pair of
It connects with answering.
Optionally, the outer peripheral surface of the fixed frame ontology corresponds to each connection terminal equipped with a terminal groove.
Optionally, the side towards the earphone rear shell of the earphone front housing is equipped with annular convex rib, and the annular convex rib is tight
With the one end for being set in fixed frame body peripheral face.
Optionally, the vibration module is equipped at least two, and the material of the vibrating diaphragm in two vibration modules is different, selects one
The vibration module is installed to the installation cavity.
Optionally, the magnetic circuit system includes conductive magnetic yoke, and the bottom of chamber wall of the installation cavity corresponds to the edge of the conductive magnetic yoke
Multiple supporting lugs are equipped at intervals with, the conductive magnetic yoke is installed on the supporting lug.
Optionally, it is equipped with positioning step on the inside of the upper end of the supporting lug, the overlapping edges of the conductive magnetic yoke are installed on
The positioning step.
In technical solution of the present invention, since vibration module can be dismounted integrally, so, on the one hand, ear can be facilitated
The assembling and maintenance of machine, particularly, in producing line, when having detected product lower tone or can not sounding due to vibrating diaphragm damage
When, the vibration module of the product can be dismantled, and replace with the good vibration module of vibrating diaphragm, the product can be completed to reprocess, it is real
For convenience；On the other hand, there can be the vibration vibration of membrane mould of unlike material convenient for exploitation tester or user's self-changeable
Block, to test or experience the earphone of different tone colors.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of earphone of the present invention；
Fig. 2 is the configuration schematic diagram of earphone in Fig. 1；
Fig. 3 is the enlarged diagram in Fig. 2 at A；
Fig. 4 is the cross section structure schematic diagram of the vibration module of earphone and earphone front housing in Fig. 1；
Fig. 5 is the enlarged diagram in Fig. 4 at B；
Fig. 6 is the enlarged diagram in Fig. 2 at C；
Fig. 7 is the structural schematic diagram of the magnetic circuit system of earphone in Fig. 1；
Fig. 8 is the configuration schematic diagram in Fig. 7 between the conductive magnetic yoke and damping fin of magnetic circuit system.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Ear casing | 11 | Earphone front housing |
| 111 | Annular convex rib | 12 | Earphone rear shell |
| 121 | Supporting lug | 122 | Positioning step |
| 13 | Earphone bracket | 2 | Vibration module |
| 21 | Voice coil | 22 | Vibrating diaphragm |
| 23 | Vibrating diaphragm fixed frame | 231 | Fixed frame ontology |
| 231a | Installation step | 231b | Terminal groove |
| 232 | Fixed pressure ring | 24 | Connection terminal |
| 3 | Magnetic circuit system | 30 | Magnetic gap |
| 31 | Conductive magnetic yoke | 311 | Damping hole |
| 312 | Damping fin | 32 | Center magnet |
| 33 | Outer ring magnet | 34 | Center magnetic conductive board |
| 35 | Outer ring magnetic conductive board |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of earphone.
Referring to Fig.1, Fig. 2 and Fig. 7, in an embodiment of the present invention, which includes:
Ear casing 1, it is interior to be equipped with installation cavity；And
Sounding device, including magnetic circuit system 3, voice coil 21, the vibrating diaphragm 22 for being connected to voice coil 21 and the vibration being connect with vibrating diaphragm 22
Film fixed frame 23, wherein
Magnetic circuit system 3 is installed on the installation cavity of ear casing 1, and has magnetic gap 30；
Voice coil 21, vibrating diaphragm 22 and vibrating diaphragm fixed frame 23 then connect into a vibration module 2, and the vibration module 2 is integrally removable
The installation cavity of installation to ear casing 1 is unloaded, and voice coil 21 is at least partially inserted into magnetic gap 30.
In technical solution of the present invention, since vibration module 2 can be dismounted integrally, so, on the one hand, ear can be facilitated
The assembling and maintenance of machine, particularly, in producing line, when having detected product lower tone or can not sounding due to vibrating diaphragm 22 damages
When, the vibration module 2 of the product can be dismantled, and replace with the good vibration module 2 of vibrating diaphragm 22, the product can be completed to return
It repairs, actually facilitates；On the other hand, there can be the vibrating diaphragm 22 of unlike material convenient for exploitation tester or user's self-changeable
Vibration module 2, to test or experience the earphone of different tone colors.
In this embodiment, it is preferred that vibration module 2 can vibrating diaphragm equipped at least two, in two vibration modules 2
22 material is different, so that user selects the installation cavity of a vibration module 2 installation to ear casing 1, so that user be allow to experience not
With the earphone of tone color.It is appreciated that multiple vibration modules 2, outer dimension are one provisioned in same earphone in the present embodiment
It causes, only the material of its vibrating diaphragm 22 is different.Right the design is without being limited thereto, in other embodiments, the vibration mould of the earphone
Block 2 can also only be equipped with one, when user wants to experience different tone colors, then buy other vibration modules with same outer dimension
2 replace.
Further, ear casing 1 includes the earphone rear shell 12 being mutually detachably connected and earphone front housing 11, wherein after earphone
Shell 12 is formed with the installation cavity, and earphone front housing 11 is then connected as one with vibration module 2.I other words in the present embodiment, earphone
Front housing 11 and vibration module 2 form one can integral disassembly, assembly component, as long as so that user is to earphone front housing 11 and ear
Machine rear shell 12 is assembled and disassembled, so that it may while assembly and disassembly to vibration module 2 are realized, it operates more convenient.In addition, earphone front housing
11 setting can provide touching protection also for vibration module 2.
Further, vibrating diaphragm fixed frame 23 includes the fixed frame ontology 231 and fixed pressure ring in the tubular of both ends open
232, the outer edge of vibrating diaphragm 22 is clamped and fixed between fixed frame ontology 231 and fixed pressure ring 232.Right the design is not limited to
This can not also design fixed pressure ring 232 in other embodiments, and the outer edge of vibrating diaphragm 22 is be bonded with fixed frame ontology 231
It is fixed.In the present embodiment, optionally, fixed pressure ring 232 is set as becket, and becket has good rigidity, is conducive to tie
The installation of structure is stable and reliable；Specifically, fixed pressure ring 232 can be set to copper ring, and copper material is not easy to be corroded.
Together referring to Fig. 3, further, the inward flange of 231 1 end face of fixed frame ontology is equipped with installation step 231a, vibrating diaphragm
22 outer edge is overlapped in installation step 231a, and 232 close-fitting of fixed pressure ring is caught in installation step 231a, to limit the disengaging of vibrating diaphragm 22
Installation step 231a.It is appreciated that installation step 231a's adds, be conducive to the location and installation of vibrating diaphragm 22, meanwhile, it also helps
The fixation of fixed pressure ring 232 and fixed frame ontology 231.Right the design is without being limited thereto, in other embodiments, fixed pressure ring 232
Buckle structure etc. can also but be not limited by connect with fixed frame ontology 231.
Further, earphone further includes two connection terminals 24, and two leads of voice coil 21 and two connection terminal 24 1 are a pair of
It connects with answering, in this way, being electrically connected convenient for vibration module 2 and control circuit.In the present embodiment, it is preferable that fixed frame ontology
231 outer peripheral surface corresponds to each connection terminal 24 equipped with a terminal groove 231b, installs connection terminal 24 with receiving, avoids connecting pin
Son 24 is scattered outside.In the present embodiment, specifically, terminal groove 231b runs through installation step 231a, in order to connection terminal 24
With being electrically connected for 21 lead of voice coil, and reduces by 21 lead of voice coil and be fixed the probability that pressure ring 232 is broken.
Referring to Fig. 4 and Fig. 5, further, the side towards earphone rear shell 12 of earphone front housing 11 is equipped with annular convex rib
111, which is set in one end of 231 outer peripheral surface of fixed frame ontology, to be connected as one with vibration module 2,
Such assembly method is simple, convenient for operation.Right the design is without being limited thereto, in other embodiments, earphone front housing 11 can also but not
The modes such as buckle structure, screw lock adhering arrangement are limited by realize the connection between earphone front housing 11 and fixed frame ontology 231.
In the present embodiment, optionally, the corresponding vibrating diaphragm 22 of earphone front housing 11 is equipped with the portion that arches upward to arch upward outward, to provide more for vibrating diaphragm 22
Installation space, without loss of generality, the portion of arching upward of earphone front housing 11 is arranged in hollow out, and is formed with multiple sound outlet holes.
Referring to Fig. 7 and Fig. 8, further, magnetic circuit system 3 includes conductive magnetic yoke 31 and the center magnetic in conductive magnetic yoke 31
Body 32 and outer ring magnet 33,33 spacer ring of outer ring magnet are set to center magnet 32, with outer ring magnet 33 and center magnet 32 it
Between between be separated out the magnetic gap 30.Without loss of generality, in the present embodiment, magnetic circuit system 3 further includes center magnetic conductive board 34 and outer ring
Magnetic conductive board 35, wherein on the centrally disposed magnet 32 of center magnetic conductive board 34, outer ring magnetic conductive board 35 is arranged on outer ring magnet 33.
Right the design is without being limited thereto, and in other embodiments, magnetic circuit system 3 can also have other structures, such as:
Conductive magnetic yoke can be set in bowl-shape, i other words, conductive magnetic yoke includes bottom wall and cricoid side wall, at this time, it is only necessary to
Center magnet is arranged in the bottom wall central of conductive magnetic yoke, and the magnetic gap is by the gap structure between the side wall and center magnet of conductive magnetic yoke
At；Or
Conductive magnetic yoke may include bottom wall and opposite two side walls, at this point, center can be arranged in the bottom wall central of conductive magnetic yoke
Magnet, and one side magnet is respectively set on the opposite sides side for being not provided with side wall of conductive magnetic yoke；Or conductive magnetic yoke only has
Bottom wall, at this point, center magnet can be arranged in the bottom wall central of conductive magnetic yoke, and setting surrounds center magnet on the bottom wall of conductive magnetic yoke
Four side magnets, in the case of this two kinds, the magnetic gap is made of the gap between center magnet and side magnet.
In addition, in the present embodiment, the setting annular in shape of outer ring magnet 33；Right the design is without being limited thereto, in other embodiments
In, outer ring magnet 33 can also be in the cyclic annular setting in side.
Optionally, in the present embodiment, 231 close-fitting of fixed frame ontology is set in the outer peripheral surface of outer ring magnet 33, with easily
Realize the connection of vibration module 2 and magnetic circuit system 3.Right the design is without being limited thereto, in other embodiments, fixed frame ontology 231
It can also directly install and fix with earphone rear shell 12.
In the present embodiment, further, conductive magnetic yoke 31 is equipped with multiple damping holes 311 interlocked with magnetic gap 30, and
Damping hole 311 is equipped with damping fin 312, to be absorbed sound by damping fin 312, to increase the system damping of product, reduces
The displacement of product, and then the fidelity effect of sound is improved, improve the acoustical behavior of product.In the present embodiment, damping fin 312 can be with
But it is not limited to be had prepared by the material of sound absorption as damping screen cloth, damping foam etc..
Referring to Fig. 6, further, the edge that the bottom of chamber wall of installation cavity corresponds to conductive magnetic yoke 31 is equipped at intervals with multiple supporting lugs
121, conductive magnetic yoke 31 is installed on supporting lug 121.It is understood that, on the one hand, supporting lug 121 is magnetic circuit system 3 in installation cavity
Interior installation provides installation and depends on, and on the other hand, the bottom of chamber wall that also can avoid installation cavity blocks damping hole 311, and influences to produce
The acoustical behavior of product.Preferably, multiple supporting lug 121 is arranged in uniform intervals, so that the installation of conductive magnetic yoke 31 is more
Stablize.Optionally, it is equipped with positioning step 122 on the inside of the upper end of supporting lug 121, the overlapping edges of conductive magnetic yoke 31 are installed on positioning
Step 122, to limit the installation site of the magnetic circuit system 3.
Referring to Figures 1 and 2, in the present embodiment, further, ear casing 1 further includes the ear for being connected to earphone rear shell 12
Machine support 13, can taking and placing convenient for earphone by earphone bracket 13.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of earphone characterized by comprising
Ear casing, it is interior to be equipped with installation cavity；And
Sounding device, it is solid including magnetic circuit system, voice coil, the vibrating diaphragm for being connected to the voice coil and the vibrating diaphragm being connect with the vibrating diaphragm
Determine frame；
The magnetic circuit system is installed on the installation cavity, and has magnetic gap；
The voice coil, the vibrating diaphragm and the vibrating diaphragm fixed frame connect into a vibration module, and the vibration module is integrally removable
It unloads and installs to the installation cavity, and the voice coil is at least partially inserted into the magnetic gap.
2. earphone as described in claim 1, which is characterized in that the ear casing include the earphone rear shell that is mutually detachably connected and
Earphone front housing, the installation cavity are formed in the earphone rear shell, and the earphone front housing is connected as one with the vibration module.
3. earphone as claimed in claim 2, which is characterized in that the vibrating diaphragm fixed frame includes consolidating in the tubular of both ends open
Determine frame ontology and fixed pressure ring, the outer edge of the vibrating diaphragm is clamped and fixed in the fixed frame ontology and the fixed pressure ring
Between.
4. earphone as claimed in claim 3, which is characterized in that the inward flange of one end face of fixed frame ontology is equipped with erecting bed
Rank, the outer edge of the vibrating diaphragm are overlapped in the installation step, and the fixed pressure ring close-fitting is caught in the installation step, with limitation
The vibrating diaphragm is detached from the installation step.
5. earphone as claimed in claim 3, which is characterized in that the earphone further includes two connection terminals, and the two of the voice coil
Lead is connect correspondingly with two connection terminal.
6. earphone as claimed in claim 5, which is characterized in that the outer peripheral surface of the fixed frame ontology corresponds to each connection terminal
Equipped with a terminal groove.
7. earphone as claimed in claim 3, which is characterized in that the side towards the earphone rear shell of the earphone front housing is set
There is annular convex rib, which is set in the one end in fixed frame body peripheral face.
8. earphone as described in any one of claim 1 to 7, which is characterized in that the vibration module is equipped at least two, this two
The material of vibrating diaphragm in a vibration module is different, selects a vibration module and installs to the installation cavity.
9. earphone as claimed in claim 8, which is characterized in that the magnetic circuit system includes conductive magnetic yoke, the chamber of the installation cavity
The edge that bottom wall corresponds to the conductive magnetic yoke is equipped at intervals with multiple supporting lugs, and the conductive magnetic yoke is installed on the supporting lug.
10. earphone as claimed in claim 9, which is characterized in that be equipped with positioning step, institute on the inside of the upper end of the supporting lug
The overlapping edges for stating conductive magnetic yoke are installed on the positioning step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825119.0A CN108989934B (en) | 2018-07-25 | 2018-07-25 | Earphone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825119.0A CN108989934B (en) | 2018-07-25 | 2018-07-25 | Earphone set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108989934A true CN108989934A (en) | 2018-12-11 |
| CN108989934B CN108989934B (en) | 2022-05-27 |
Family
ID=64550612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810825119.0A Active CN108989934B (en) | 2018-07-25 | 2018-07-25 | Earphone set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108989934B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167496Y (en) * | 1993-06-07 | 1994-06-01 | 海特音响股份有限公司 | Loud-speaker with changable diaphragm |
| CN1830227A (en) * | 2003-05-28 | 2006-09-06 | 波士顿声学有限公司 | Audio speaker having a removable voice coil |
| CN101534464A (en) * | 2008-03-14 | 2009-09-16 | 索尼株式会社 | Audio output apparatus and vibrator |
| CN103841478A (en) * | 2012-11-20 | 2014-06-04 | 清华大学 | Earphone |
| CN204761649U (en) * | 2015-04-29 | 2015-11-11 | 朝阳聚声泰（信丰）科技有限公司 | Earphone |
| US20170150267A1 (en) * | 2013-12-30 | 2017-05-25 | Skullcandy, Inc. | Headphones for stereo tactile vibration, and related systems and methods |
| CN206894879U (en) * | 2017-06-07 | 2018-01-16 | 东莞市泽韵电子有限公司 | A kind of vibrating diaphragm for being easily installed and dismantling |
| CN206977681U (en) * | 2017-02-23 | 2018-02-06 | 安庆市信华电子机械有限公司 | A kind of vibrating diaphragm of fixed screens |
-
2018
- 2018-07-25 CN CN201810825119.0A patent/CN108989934B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2167496Y (en) * | 1993-06-07 | 1994-06-01 | 海特音响股份有限公司 | Loud-speaker with changable diaphragm |
| CN1830227A (en) * | 2003-05-28 | 2006-09-06 | 波士顿声学有限公司 | Audio speaker having a removable voice coil |
| CN101534464A (en) * | 2008-03-14 | 2009-09-16 | 索尼株式会社 | Audio output apparatus and vibrator |
| CN103841478A (en) * | 2012-11-20 | 2014-06-04 | 清华大学 | Earphone |
| US20170150267A1 (en) * | 2013-12-30 | 2017-05-25 | Skullcandy, Inc. | Headphones for stereo tactile vibration, and related systems and methods |
| CN204761649U (en) * | 2015-04-29 | 2015-11-11 | 朝阳聚声泰（信丰）科技有限公司 | Earphone |
| CN206977681U (en) * | 2017-02-23 | 2018-02-06 | 安庆市信华电子机械有限公司 | A kind of vibrating diaphragm of fixed screens |
| CN206894879U (en) * | 2017-06-07 | 2018-01-16 | 东莞市泽韵电子有限公司 | A kind of vibrating diaphragm for being easily installed and dismantling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108989934B (en) | 2022-05-27 |
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