CN207200963U - Double moving-coil speakers - Google Patents
Double moving-coil speakers Download PDFInfo
- Publication number
- CN207200963U CN207200963U CN201720101916.5U CN201720101916U CN207200963U CN 207200963 U CN207200963 U CN 207200963U CN 201720101916 U CN201720101916 U CN 201720101916U CN 207200963 U CN207200963 U CN 207200963U
- Authority
- CN
- China
- Prior art keywords
- chamber
- double moving
- coil
- vibrating diaphragm
- housing
- 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.)
- Active
Links
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
It the utility model is related to a kind of double moving-coil speakers, including housing and the first vibrational system being arranged in housing, first vibrational system includes the first vibrating diaphragm, housing is separated out a first chamber by the first vibrating diaphragm, double moving-coil speakers also include the frame being arranged in first chamber, and first chamber is separated out the first sub-chamber close to the first vibrating diaphragm and the second sub-chamber away from first vibrating diaphragm by frame；Double moving-coil speakers also include the first magnetic circuit system, the second vibrational system and the second magnetic circuit system coordinated with the second vibrational system coordinated with the first vibrational system, first magnetic circuit system is arranged in the first sub-chamber, and the second vibrational system and the second magnetic circuit system are arranged in the second sub-chamber；The housing includes fore shell and the rear shell being engaged with the fore shell, the fore shell are embedded into the rear shell.The double moving-coil speakers of the utility model low high frequency can effectively be taken into account in, this pair of moving-coil speaker is possessed the performance of high-fidelity, so as to improve the tonequality of double moving-coil speakers；And the profile and height dimension of double moving-coil speakers are greatly reduced, makes compact-sized, saving space.
Description
Technical field
Loudspeaker field is the utility model is related to, more specifically to a kind of double moving-coil speakers.
Background technology
Loudspeaker is a kind of electronic product commonly used in life.Loudspeaker in correlation technique is generally all to set one to shake
Dynamic system and the magnetic circuit system coordinated with it, under such circumstances, it may appear that the unsharp situation of tonequality, so that loudspeaker
Performance it is not good enough.And as electronic equipment tends to slimming, miniaturization, in order to install loudspeaker in electronic equipment, raise
The structure of sound device also tends to miniaturization, it is necessary to the construction profile of loudspeaker further be reduced, to meet the needs of people.
Utility model content
The technical problems to be solved in the utility model is, there is provided a kind of improved double moving-coil speakers.
Technical scheme is used by the utility model solves its technical problem：A kind of double moving-coil speakers are constructed, including
Housing and the first vibrational system being arranged in housing, first vibrational system include the first vibrating diaphragm, first vibrating diaphragm
The housing is separated out a first chamber, it is characterised in that double moving-coil speakers also include being arranged on described first
The first chamber is separated out close to the first sub-chamber of first vibrating diaphragm and away from institute by the frame in chamber, the frame
State the second sub-chamber of the first vibrating diaphragm；Double moving-coil speakers also include the first magnetic circuit coordinated with first vibrational system
System, the second vibrational system and the second magnetic circuit system coordinated with second vibrational system, first magnetic circuit system are set
In first sub-chamber, second vibrational system and second magnetic circuit system are arranged in second sub-chamber；
The housing includes fore shell and the rear shell being engaged with the fore shell, the fore shell are embedded into the rear shell.
Preferably, the frame includes the depressed part and edge part towards first vibrating diaphragm depression, the edge part
It is connected with the housing.
Preferably, it is provided with sound guide tube on the depressed part, the sound guide tube is by first sub-chamber and described second
Sub-chamber connects.
Preferably, second magnetic circuit system includes the second magnet, and second magnet is arranged on the bottom of the depressed part
Portion's inner surface.
Preferably, second magnet has axially extending bore, and the through hole connects with the sound guide tube.
Preferably, first vibrational system also includes the first voice coil loudspeaker voice coil, and first magnetic circuit system includes the first magnet, institute
State the periphery that the first magnet is incorporated into the frame, first magnet in a ring and surrounds first voice coil loudspeaker voice coil.
Preferably, first voice coil loudspeaker voice coil is looped around the periphery of the depressed part.
Preferably, second vibrational system includes the second vibrating diaphragm, second vibrating diaphragm be arranged on the frame with institute
The opposite side in side where stating the first magnet.
Preferably, the middle part of second vibrating diaphragm is provided with perforation, and the perforation connects with the through hole.
Preferably, second vibrational system also includes the second voice coil loudspeaker voice coil being connected with second vibrating diaphragm, second sound
Ring is wound on the periphery of second magnet, and by the side wall ring of the depressed part around.
Preferably, double moving-coil speakers include bass system, high system for electrical teaching；Also include circuit board and be arranged on
Filter unit on the circuit board, the filter unit are low by the HFS of the bass system and the high system for electrical teaching
Frequency Partial filtration falls.
Preferably, the filter unit includes filter capacitor, and the bass system includes first vibrational system and institute
The first magnetic circuit system is stated, the high system for electrical teaching includes second vibrational system and second magnetic circuit system.
Preferably, the housing is also separated out a second chamber by first vibrating diaphragm, and the housing is provided with least
One air-vent, the air-vent connect the second chamber with the external world.
Preferably, the housing is provided with least one sender, and the sender is by second sub-chamber and the external world
Connection.
Preferably, the housing includes fore shell and the rear shell coordinated with fore shell, the frame are located at the fore shell and institute
Between stating the first vibrating diaphragm, first vibrating diaphragm is located between the frame and the rear shell.
Preferably, the part of the enclosure interior is the internal diameter positioning by the rear shell.
Implement double moving-coil speakers of the present utility model, have the advantages that：Have in double acting circle speaker cover body
Double vibrational system and double magnetic circuit systems, the double diaphragm system positioned at different chamber can be learnt from other's strong points to offset one's weaknesses by two voice coil loudspeaker voice coils, in
Low high frequency is effectively taken into account, and this pair of moving-coil speaker is possessed the performance of high-fidelity, so as to improve double moving-coil speakers
Tonequality.And the double moving-coil speakers of the utility model are to assemble shaking for high pitch and bass by the positive and negative of same frame
Dynamic system and magnetic circuit system, the profile and height dimension of double moving-coil speakers can be greatly reduced, make compact-sized, saving sky
Between.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the double moving-coil speakers of the utility model；
The double circuit boards of moving-coil speaker of Fig. 2 the utility model and the structural representation of filter unit；
Fig. 3 is Helmholtz resonator schematic diagram；
Fig. 4 is double moving-coil speaker test comparison charts；
Label declaration：
10th, housing；11st, first chamber；111st, the first sub-chamber；112nd, the second sub-chamber；113rd, fore shell；114th, rear shell；
12nd, second chamber；13rd, sender；14th, air-vent；21st, the first vibrating diaphragm；22nd, the first voice coil loudspeaker voice coil；30th, the first magnet；41st, second shakes
Film；411st, perforate；42nd, the second voice coil loudspeaker voice coil；50th, the second magnet；51st, through hole；60th, frame；61st, depressed part；62nd, edge part；70th, lead
Sound tube；80th, circuit board；90th, filter unit.
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, it is detailed now to compare accompanying drawing
Illustrate specific embodiment of the present utility model.
The utility model discloses a kind of double moving-coil speakers, portable electric appts are can be applied to, such as earphone, mobile phone
Deng.There are double vibrational systems and double magnetic circuit system, positioned at different chamber in the housing 10 of the double moving-coil speakers of the utility model
Double diaphragm system can be learnt from other's strong points to offset one's weaknesses by two voice coil loudspeaker voice coils, and low high frequency is effectively taken into account in, makes this pair of moving-coil speaker
Possesses the performance of high-fidelity, so as to improve the tonequality of double moving-coil speakers.And the double moving-coil speakers of the utility model are logical
The positive and negative of same frame 60 is crossed to assemble the vibrational system of high pitch and bass and magnetic circuit system, can be greatly reduced double acting
The profile and height dimension of loudspeaker are enclosed, makes compact-sized, saving space.
Refering to Fig. 1, this pair of moving-coil speaker includes housing 10 and the first vibrational system being arranged in housing 10, and first
Vibrational system includes the first vibrating diaphragm 21, and housing 10 is separated out a first chamber 11 by the first vibrating diaphragm 21, and double moving-coil speakers are also
Including the frame 60 being arranged in first chamber 11, first chamber 11 is separated out the first son close to the first vibrating diaphragm 21 by frame 60
Chamber 111 and the second sub-chamber 112 away from the first vibrating diaphragm 21；Double moving-coil speakers also include what is coordinated with the first vibrational system
First magnetic circuit system, the second vibrational system and the second magnetic circuit system coordinated with the second vibrational system, the first magnetic circuit system are set
In the first sub-chamber 111, the second vibrational system and the second magnetic circuit system are arranged in the second sub-chamber 112.
Frame 60 is used as supporter, available for support vibrational system and magnetic circuit system.Frame 60 is included backwards to the first vibrating diaphragm
21 front and the reverse side towards the first vibrating diaphragm 21.By the first vibrational system, the first magnetic circuit coordinated with the first vibrational system
System is arranged on the front of frame 60, and the second vibrational system and the second magnetic circuit system coordinated with the second vibrational system are arranged on
The reverse side of frame 60, the vibrational system of high pitch and bass and magnetic circuit system are assembled by the positive and negative of same frame 60, adopted
Assembled with same frame 60, can greatly reduce the profile and height dimension of loudspeaker.
Frame 60 includes the depressed part 61 and edge part 62 towards the first vibrating diaphragm 21 depression, and edge part 62 connects with housing 10
Connect.Sound guide tube 70 is provided with frame 60, sound guide tube 70 connects the first sub-chamber 111 with the second sub-chamber 112.Sound guide tube 70
It is arranged on the depressed part 61 of frame 60, is preferably provided in the middle position of depressed part 61.
First vibrational system also includes the first vibrating diaphragm 21 of driving and vibrates and be provided with the first voice coil loudspeaker voice coil 22 of voice coil leads, the first magnetic
Road system includes the first magnet 30, and the first magnet 30 is incorporated into the periphery of frame 60, i.e. edge part 62, and the first magnet 30 is in a ring
And surround the first voice coil loudspeaker voice coil 22.Specifically, the first magnet 30 is incorporated into the reverse side of frame 60.First voice coil loudspeaker voice coil 22 is looped around depressed part 61
Periphery.The first voice coil loudspeaker voice coil 22 is set to be placed in magnetic field caused by the first magnet 30 itself of the first magnetic circuit system.When in magnetic field
The first voice coil loudspeaker voice coil 22 have tone currents by when, the first voice coil loudspeaker voice coil 22 just produces the magnetic field changed with tone currents, this magnetic field and
Interaction force occurs for the magnetic field of the first magnet 30, this active force just make the first voice coil loudspeaker voice coil 22 in the magnetic field of the first magnet with
Tone currents vibration is got up, and the first vibrating diaphragm 21 of double moving-coil speakers and the first voice coil loudspeaker voice coil 22 connect together, so first
Voice coil loudspeaker voice coil 22 drives the first vibrating diaphragm 21 also to vibrate, and vibration just generates and former audio signal waveform identical sound.Second
Magnetic circuit system includes the second magnet 50, and the second magnet 50 is arranged on the bottom interior surface of depressed part 61.Second magnet 50 has axle
To through hole 51, through hole 51 connects with sound guide tube 70.
Second vibrational system includes the second vibrating diaphragm 41 and is connected with the second vibrating diaphragm 41, drives the second vibrating diaphragm 41 to vibrate and set
There is the second voice coil loudspeaker voice coil 42 of voice coil leads, the second vibrating diaphragm 41 is arranged on the side opposite with the place side of the first magnet 30 of frame 60
The front in face, i.e. frame 60.The middle part of second vibrating diaphragm 41 is provided with perforation 411, and perforation 411 and the through hole 51 of the second magnet 50 connect
It is logical.Second voice coil loudspeaker voice coil 42 is looped around the periphery of the second magnet 50, and by the side wall ring of depressed part 61 around.It is looped around the second voice coil loudspeaker voice coil 42
The periphery of second magnet 50, magnetic field caused by the second magnet 50 itself of the second magnetic circuit system, when the second voice coil loudspeaker voice coil 42 has audio-frequency electric
It is out-of-date to circulate, and the second voice coil loudspeaker voice coil 42 just produces the magnetic field changed with tone currents, the magnetic field generation of this magnetic field and the second magnet 50
Interaction force, this active force just make the voice coil loudspeaker voice coil of the second vibrating diaphragm 41 in the magnetic field of the second magnet as tone currents vibrates
Come, and the second vibrating diaphragm 41 of double moving-coil speakers and the voice coil loudspeaker voice coil of the second vibrating diaphragm 41 connect together, so the second voice coil loudspeaker voice coil 42 vibrates
The second vibrating diaphragm 41 is driven also to vibrate, vibration just generates and former audio signal waveform identical sound.
Double moving-coil speakers of the present utility model include bass system and high system for electrical teaching, in addition to circuit board 80 and filtering list
Member 90.Refering to Fig. 2, filter unit 90 is arranged on circuit board 80, for dividing, by the HFS of bass system and high phonetic system
The low frequency part of system filters out, and combines the low frequency part of bass system and the HFS of high system for electrical teaching, allows double acting circle
The full frequency band performance of loudspeaker is more perfect.Wherein, filter unit 90 includes filter capacitor.Specifically, filter unit 90 can be with
For filter capacitor, filter capacitor can be welded on circuit board 80 by way of welding；Or filter unit 90 can also
For the circuit with filter function, such as wave filter.Bass system includes the first vibrational system and the first magnetic circuit system, high system for electrical teaching
Including the second vibrational system and the second magnetic circuit system.The voice coil leads of first voice coil loudspeaker voice coil and the second voice coil loudspeaker voice coil are connected to circuit board 80
On.In the present embodiment, filter capacitor is variable capacitance, it is possible to understand that, in certain embodiments, one can also be used simultaneously
Individual high-frequency filter capacitor and a low frequency filtering electric capacity replace variable capacitance, high-frequency filter capacitor and low frequency filtering electric capacity difference
For filtering the HFS of bass system and the low frequency part of high system for electrical teaching.
Housing 10 is also separated out a second chamber 12 by the first vibrating diaphragm 21, and housing 10 is provided with least one air-vent
14, air-vent 14 connects second chamber 12 with the external world, and at least one air-vent 14 is oppositely arranged with sound guide tube.On housing 10
At least one sender 13 is additionally provided with, sender 13 connects ante-chamber with the external world, and at least one sender 13 and sound guide tube phase
To setting, it is easy to the outflow of sound.
Due to being separated out first chamber 11 and second chamber 12 by the first vibrating diaphragm 21 in housing 10, while first chamber 11 is again
The first sub-chamber 111 close to the first vibrating diaphragm 21 and the second sub-chamber 112 away from vibrating diaphragm are separated into by frame 60, in frame 60
The sound guide tube 70 for connecting the first sub-chamber 111 with the second sub-chamber 112 is additionally provided with, is only had with common double moving-coil speaker structure
One first chamber 11 and second chamber 12, so the high frequency curve of double moving-coil speakers begins to decay in 3-4kHz or so.
And more first sub-chamber 111 of the utility model double moving-coil speakers and by the first sub-chamber 111 and the second sub-chamber
The sound guide tube 70 of 112 connections, refering to Fig. 3-Fig. 4, according to the principle of Helmholtz resonator, this 70 and first sub- chamber of sound guide tube
Room 111 can form second high-frequency resonance peak, and by the calculating of the size of 70 and first sub-chamber of sound guide tube 111, high frequency frequency range can
To extend to 7.5kHz or so.For example, the diameter d=1.2mm of sound guide tube 70, height l=0.3mm, area S=π * (d/2)2；
Second ante-chamber diameter d1=5.2mm, height h=2.2mm, volume V=π * (d1/2)2* h, high frequency can be obtained in calculation formula by, which substituting into, is total to
Vibration frequency f0=7.5kHz, high-frequency resonance frequency calculation formula is as follows caused by Helmholtz resonator：
Compared with correlation technique, the double moving-coil speakers of the utility model can extend high frequency frequency range, make double moving-coil speakers
Sound sense of hearing it is more penetrating bright.For double acting circle speaker operation in medium-high frequency section, tonequality is merrily and lightheartedly careful, rich in characteristic, easily
Obtain as clear as crystal alt.
In the present embodiment, housing 10 includes fore shell 113 and the rear shell 114 coordinated with fore shell 113, before frame 60 is located at
Between the vibrating diaphragm 21 of shell 113 and first, the first vibrating diaphragm 21 is located between frame 60 and rear shell 114.Fore shell is set relative to sound guide tube 70
The sender 13 for running through fore shell and being connected with the second sub-chamber 112 is equipped with, the second sub-chamber 112 connects outer via the sender 13
Boundary, rear shell are provided through rear shell 114, the air-vent 14 that the chamber of second chamber 12 is in communication with the outside relative to sound guide tube 70, i.e.,
Sender 13 is arranged on fore shell, and air-vent 14 is arranged in rear shell 114.In certain embodiments, as shown in figure 1, fore shell
Diameter is less than the diameter of rear shell 114 so that fore shell 113 can be embedded in rear shell 114, in this way, in assembling process, will can be owned
Inner body be initially charged with rear shell 114, finally cover fore shell 113 again, the assembling to whole double moving-coil speakers is brought
Very big facility.In addition, the internal diameter of all reliable rear shell 114 of all inner bodies positions, all it is that direct-assembling enters rear shell 114
The inside, production technology is easy, efficiency high.
It is to be appreciated that above example only expresses preferred embodiment of the present utility model, its description is more specific
With it is detailed, but can not therefore and be interpreted as the limitation to the utility model patent scope；It should be pointed out that for this area
Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely
Combination, various modifications and improvements can be made, these belong to the scope of protection of the utility model；Therefore, it is all with this practicality
The equivalents and modification that new right is done, the covering scope of the utility model claims all should be belonged to.
Claims (15)
1. a kind of double moving-coil speakers, including housing (10) and the first vibrational system for being arranged in housing (10), described
One vibrational system includes the first vibrating diaphragm (21), and the housing is separated out a first chamber (11) by first vibrating diaphragm (21)；
Characterized in that, double moving-coil speakers also include the frame (60) being arranged in the first chamber (11), the frame
(60) first chamber (11) is separated out close to the first sub-chamber (111) of first vibrating diaphragm and shaken away from described first
The second sub-chamber (112) of film (21)；Double moving-coil speakers also include the first magnetic coordinated with first vibrational system
Road system, the second vibrational system and the second magnetic circuit system coordinated with second vibrational system, first magnetic circuit system
It is arranged in first sub-chamber (111), second vibrational system and second magnetic circuit system are arranged on described second
In sub-chamber (112)；The housing (10) includes fore shell (113) and the rear shell (114) being engaged with the fore shell (113),
The diameter of the fore shell (113) is less than the diameter of the rear shell (114), and the fore shell (113) is embedded into the rear shell (114)
In, the internal part of the housing (10) is that to be installed in the rear shell (114) inner and determined by the internal diameter of the rear shell (114)
Position.
2. double moving-coil speakers according to claim 1, it is characterised in that the frame (60) is included towards described first
The depressed part (61) and edge part (62) of vibrating diaphragm (21) depression, the edge part (62) are connected with the housing (10).
3. double moving-coil speakers according to claim 2, it is characterised in that be provided with sound guide tube on the depressed part (61)
(70), the sound guide tube (70) connects first sub-chamber (111) with second sub-chamber (112).
4. double moving-coil speakers according to claim 3, it is characterised in that second magnetic circuit system includes the second magnet
(50), second magnet (50) is arranged on the bottom interior surface of the depressed part (61).
5. double moving-coil speakers according to claim 4, it is characterised in that second magnet (50) has axially extending bore
(51), the through hole (51) connects with the sound guide tube (70).
6. double moving-coil speakers according to claim 5, it is characterised in that first vibrational system also includes the first sound
Enclosing (22), first magnetic circuit system includes the first magnet (30), and first magnet (30) is incorporated into the periphery of the frame,
First magnet (30) in a ring and surrounds first voice coil loudspeaker voice coil (22).
7. double moving-coil speakers according to claim 6, it is characterised in that first voice coil loudspeaker voice coil (22) is looped around described recessed
Fall into the periphery of portion (61).
8. double moving-coil speakers according to claim 6, it is characterised in that second vibrational system includes the second vibrating diaphragm
(41), second vibrating diaphragm (41) is arranged on the side opposite with side where first magnet (30) of the frame (60)
Face.
9. double moving-coil speakers according to claim 8, it is characterised in that the middle part of second vibrating diaphragm (41) is provided with and worn
Hole (411), the perforation (411) connect with the through hole (51).
10. double moving-coil speakers according to claim 8, it is characterised in that second vibrational system also includes and institute
The second voice coil loudspeaker voice coil (42) of the second vibrating diaphragm (41) connection is stated, second voice coil loudspeaker voice coil (42) is looped around the outer of second magnet (50)
Enclose, and by the side wall ring of the depressed part (61) around.
11. double moving-coil speakers according to any one of claim 1 to 10, it is characterised in that double moving-coil speakers
Including bass system, high system for electrical teaching；Also include circuit board (80) and the filter unit being arranged on the circuit board (80)
(90), the filter unit (90) filters out the low frequency part of the HFS of the bass system and the high system for electrical teaching.
12. double moving-coil speakers according to claim 11, it is characterised in that the filter unit includes filter capacitor,
The bass system includes first vibrational system and first magnetic circuit system, and the high system for electrical teaching shakes including described second
Dynamic system and second magnetic circuit system.
13. double moving-coil speakers according to any one of claim 1 to 10, it is characterised in that first vibrating diaphragm (21)
The housing (10) is also separated out a second chamber (12), the housing (10) is provided with least one air-vent (14),
The air-vent (14) connects the second chamber (12) with the external world.
14. double moving-coil speakers according to any one of claim 3 to 10, it is characterised in that set on the housing (10)
There is at least one sender (13), the sender (13) connects second sub-chamber (112) with the external world.
15. double moving-coil speakers according to any one of claim 1 to 10, it is characterised in that the housing (10) includes
Fore shell and the rear shell coordinated with fore shell, the frame (60) is located between the fore shell and first vibrating diaphragm (21), described
First vibrating diaphragm (21) is located between the frame (60) and the rear shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101916.5U CN207200963U (en) | 2017-01-26 | 2017-01-26 | Double moving-coil speakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101916.5U CN207200963U (en) | 2017-01-26 | 2017-01-26 | Double moving-coil speakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207200963U true CN207200963U (en) | 2018-04-06 |
Family
ID=61792071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720101916.5U Active CN207200963U (en) | 2017-01-26 | 2017-01-26 | Double moving-coil speakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207200963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168115A (en) * | 2018-06-14 | 2019-01-08 | 深圳市蓝禾技术有限公司 | Loudspeaker and earphone including the loudspeaker |
| CN109874092A (en) * | 2019-03-13 | 2019-06-11 | 上海安费诺永亿通讯电子有限公司 | A kind of New-type loudspeaker |
| CN111083617A (en) * | 2019-12-20 | 2020-04-28 | 歌尔股份有限公司 | Sound production device and electronic equipment |
-
2017
- 2017-01-26 CN CN201720101916.5U patent/CN207200963U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109168115A (en) * | 2018-06-14 | 2019-01-08 | 深圳市蓝禾技术有限公司 | Loudspeaker and earphone including the loudspeaker |
| CN109874092A (en) * | 2019-03-13 | 2019-06-11 | 上海安费诺永亿通讯电子有限公司 | A kind of New-type loudspeaker |
| CN111083617A (en) * | 2019-12-20 | 2020-04-28 | 歌尔股份有限公司 | Sound production device and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206118013U (en) | Loudspeaker | |
| CN201657291U (en) | Multifunctional mini speaker | |
| CN201608881U (en) | Multifunctional miniature loudspeaker | |
| CN109218927A (en) | Sounding device | |
| CN207200963U (en) | Double moving-coil speakers | |
| CN101998216A (en) | Loudspeaker and portable electronic device | |
| CN107493549A (en) | Microspeaker casing with the porous material in resonant space | |
| CN205051866U (en) | Sounding device | |
| CN206118014U (en) | Loudspeaker | |
| CN208675521U (en) | Double moving-coil speakers | |
| CN101444109B (en) | Loudspeaker with reduced rocking tendency | |
| CN114268889A (en) | Speaker and electronic apparatus | |
| CN201608883U (en) | Multifunctional miniature loudspeaker | |
| CN113473334B (en) | Sound production monomer, speaker subassembly and electronic equipment | |
| CN204046801U (en) | A kind of low frequency vibrator | |
| CN201608884U (en) | Multifunctional miniature loudspeaker | |
| CN214481253U (en) | Double-moving-coil micro loudspeaker | |
| CN205320275U (en) | Two -way miniature speaker | |
| CN201523448U (en) | Speaker and portable electronic equipment | |
| CN112752208A (en) | Loudspeaker and sound system | |
| CN205123969U (en) | Take audio amplifier of passive radiator | |
| CN111711897B (en) | Sound production device module | |
| CN209659545U (en) | A kind of small size receiver | |
| CN206118012U (en) | Loudspeaker | |
| CN209642956U (en) | A kind of New-type loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |