CN103260118B - Flat woofer - Google Patents
Flat woofer Download PDFInfo
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- CN103260118B CN103260118B CN201310167574.3A CN201310167574A CN103260118B CN 103260118 B CN103260118 B CN 103260118B CN 201310167574 A CN201310167574 A CN 201310167574A CN 103260118 B CN103260118 B CN 103260118B
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- voice coil
- fpcb
- vibrating diaphragm
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- mounting plane
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Abstract
The present invention provides a kind of flat woofer, the driver element separate including vibrating diaphragm, at least four and shell；Vibrating diaphragm is tabular, including being positioned at the top dome portion of center and being positioned at the ring portion of marginal position；Driver element includes independent voice coil unit and the magnetic circuit unit corresponding with voice coil unit；Four voice coil units therein are fitted four corners in the top dome portion being fixed on vibrating diaphragm respectively；Shell is provided with the edge secure bond in the installing hole for housing fixing magnetic circuit unit, the upper side of shell and ring portion；Flat woofer also includes internal circuit and the FPCB of external circuit connecting speaker, FPCB is arranged on the both sides of shell, wherein, FPCB electrically connects with voice coil leads near the side of voice coil unit, electrically connects with the external circuit of speaker away from the side of voice coil unit.The flat woofer that the present invention provides, it is possible to solve the thick and heavy problem with excessive magnet performance of voice coil loudspeaker voice coil.
Description
Technical field
The present invention relates to acoustic-electric technical field, more specifically, relate to a kind of flat woofer.
Background technology
Along with progress and the development of technology of society, in recent years, the electronic product volume such as television set constantly reduces the thinnest
Type, people are more and more higher to the performance requirement of these electronic products, thus also require that the body of matched electronic component
Long-pending continuous thickness also improves constantly in reduction, performance and concordance.
The woofer of traditional structure generally uses the vibrating diaphragm of taper cone shape, and the center of conical diaphragm comprises one
Individual voice coil loudspeaker voice coil, and the size of magnetic circuit system is bigger the thickest.The woofer of this structure, the thickness of product is relatively big,
Cannot meet the demand of current electronic product slimming increasingly, practicality is the strongest.
Further, woofer, in order to ensure that its low frequency sound effect is generally of bigger bore, i.e. has bigger vibrating diaphragm
Area.According to a tabular vibrating diaphragm, it is combined with the structure (voice coil loudspeaker voice coil needs to be positioned against antermarginal position) of a voice coil loudspeaker voice coil, greatly
The vibrating diaphragm of area requires that voice coil loudspeaker voice coil is also sized to bigger, coiling difficulty, more yielding.It addition, the magnetic of existing woofer
Ferrum size is bigger, and during slimming application, washer and frame thickness are the least, and magnetic circuit system is easily saturated, excessive magnet performance,
Cause waste, and relatively costly.
Based on factors above, need the product of traditional structure is improved.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of flat woofer, to realize woofer
Slimming, and solve that voice coil loudspeaker voice coil is thick and heavy and the problem of excessive magnet performance.
The present invention provides a kind of flat woofer, including vibrating diaphragm, four separate driver elements and shell；
Wherein,
Driver element that at least four is separate and shell；Wherein,
Vibrating diaphragm is tabular, including being positioned at the top dome portion of rigidity of center and being positioned at the ring portion of marginal position；
Driver element includes independent voice coil unit and the magnetic circuit unit corresponding with voice coil unit；
Four voice coil units therein are fitted four corners in the top dome portion being fixed on vibrating diaphragm respectively；
Shell is provided with the edge in the installing hole for housing fixing magnetic circuit unit, the upper side of shell and ring portion
Secure bond；Further,
Flat woofer also includes internal circuit and the FPCB of external circuit connecting speaker, and FPCB is arranged on
The both sides of described shell, wherein, FPCB electrically connects with voice coil leads near the side of voice coil unit, away from the side of voice coil unit
Electrically connect with the external circuit of speaker.
Furthermore it is preferred that scheme be that shell includes the annular sidewall around mounting plane and mounting plane, at mounting plane
On be provided with through mounting plane go out acoustic aperture；FPCB makes the structure of mounting plane both sides be connected by going out acoustic aperture.
Furthermore it is preferred that scheme be that FPCB and shell be secure bond by the way of bonding or engaging.
Furthermore it is preferred that scheme be acoustic aperture and include that the center being arranged on mounting plane center goes out acoustic aperture.
Furthermore it is preferred that scheme be, FPCB be clamped to center speak bore edges mounting plane on, of FPCB
Office is in mounting plane near the side of vibrating diaphragm, and another part is in the mounting plane side away from vibrating diaphragm.
Furthermore it is preferred that scheme be that FPCB includes separate two parts, every part and two neighbouring voice coil units
Electrical connection.
Furthermore it is preferred that scheme be that the tow sides of FPCB are provided with pad, be arranged on the double-edged pad of FPCB
One_to_one corresponding respectively；Wherein,
The pad being arranged on FPCB front electrically connects with each voice coil unit respectively, and, anti-by being arranged on FPCB
The pad in face controls the connection in series-parallel relation between voice coil unit.
Furthermore it is preferred that scheme be that FPCB uses polyimide copper clad lamination base material.
Furthermore it is preferred that scheme be that the edge of annular sidewall is provided with the fixing hole of fixing speaker and electronic installation.
Furthermore it is preferred that scheme be that top dome portion is honeycomb texture or foaming body structure.
Furthermore it is preferred that scheme be that shell is aluminum alloy materials shell.
Knowable to technical scheme above, the flat woofer of the present invention, it is possible to obtain following beneficial effect:
1) four driver elements are separately positioned on four corners in top dome portion of vibrating diaphragm, and this structure uses undersized sound
Coil unit and magnetic circuit unit drive the vibrating diaphragm of large-sized woofer, it is possible to reduce the thickness of woofer, additionally it is possible to
Save the size reduction cost of Magnet, improve the sensitivity of speaker, and this driver element be arranged at the structure in corner and have
It is beneficial to the vibrating diaphragm driving woofer of balance；
2) shell uses aluminum alloy materials, and aluminum alloy materials strength ratio is relatively big, and stability is high；
3) use FPCB(Flexible Printed Circuit Board, be called for short FPCB or FPC, flexible print wiring
Plate) connect voice coil loudspeaker voice coil and external circuit, only in conjunction with on installed surface, sufficiently utilize the gap between magnetic circuit unit on installed surface,
Take full advantage of the inner space of woofer, make product thinner.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention include will be explained in below and
The feature particularly pointed out in claim.Description below and accompanying drawing are described in detail some illustrative aspects of the present invention.
But, some modes in the various modes of the principle that only can use the present invention of these aspects instruction.Additionally, the present invention
It is intended to include all these aspect and their equivalent.
Accompanying drawing explanation
By with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with to the present invention more comprehensively
Understanding, other purpose of the present invention and result will be more apparent and should be readily appreciated that.In the accompanying drawings:
Fig. 1 is the structural representation of the flat woofer according to the embodiment of the present invention；
Fig. 2 is the FPCB structural representation according to the embodiment of the present invention；
Fig. 3-1 is four voice coil loudspeaker voice coil connection diagrams according to the embodiment of the present invention；
Fig. 3-2 is four voice coil loudspeaker voice coil connection diagrams according to another embodiment of the present invention；
Fig. 4 is the FPCB according to the embodiment of the present invention and outer casing frontispiece schematic diagram；
Fig. 5 is the FPCB according to the embodiment of the present invention and shell reverse side schematic diagram.
Reference therein includes: top dome portion 1, ring portion 2, shell 3, installing hole 4, driver element 5, FPCB6, center
Go out acoustic aperture 7, edge goes out acoustic aperture 8, mounting plane 9, annular sidewall 10, pad 11, FPCB front surface A, FPCB reverse side B.
The most identical label indicates similar or corresponding feature or function.
Detailed description of the invention
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that these embodiments can also be realized in the case of not having these details.
Below with reference to accompanying drawing, the specific embodiment of the present invention is described in detail.
Woofer needs bigger vibrating diaphragm area, in order to give large area on the basis of limiting voice coil loudspeaker voice coil and magnet size
Vibrating diaphragm enough driving is provided, the present invention is from the angle of the multiple separate driver element of dispersed placement so that shake
Film is driven by multiple independent voice coil loudspeaker voice coils, the corresponding independent magnetic circuit unit of each voice coil loudspeaker voice coil, thus with driver element more rationally and effectively
Laying structure realizes the miniaturization of woofer.
Fig. 1 is the structural representation of the flat woofer according to the embodiment of the present invention.
As it is shown in figure 1, the flat woofer that the present invention provides, including vibrating diaphragm, four separate driving lists
Unit 5 and shell 3.
Wherein, vibrating diaphragm is tabular, and vibrating diaphragm includes the top dome portion 1 being positioned at the rigidity of the vibrating diaphragm of center and is positioned at edge
The ring portion 2 of the vibrating diaphragm of position.Area, in the present invention, top dome portion 1 effective radiating area is effectively vibrated in order to increase vibrating diaphragm
The limited proportion of equivalent redius and ring portion width in the range of 4～15, i.e. 4 < effective radiating area equivalent redius: ring portion
Width < 15.
The top dome portion 1 of vibrating diaphragm uses aluminum alloy materials to make, and to ensure its hardness and rigid structure, rigid structure can carry
Rise vibrating diaphragm acoustic characteristic.In an embodiment of the present invention, the top dome portion 1 of vibrating diaphragm can also be honeycomb texture or foaming body structure,
Both structures also are able to promote vibrating diaphragm acoustic characteristic.The ring portion 2 of vibrating diaphragm can use PU (Polyurethane, poly-amino
Formic acid esters) or silicone rubber making.
Driver element 5 includes voice coil unit and magnetic circuit unit, and each voice coil unit is corresponding with each magnetic circuit unit.If
This flat woofer comprises four driver elements, four driver elements 5 can be separately positioned on the top dome of vibrating diaphragm
Four corners in portion 1；If this flat woofer comprises more than four driver elements, can be by the sound of driver element
Coil unit is uniformly arranged on the peripheral position in the top dome portion 1 of vibrating diaphragm, it is also possible to be arranged on ball in scattered irregular alignment mode
On top, to avoid resonance.
Driver element is circular, including circular voice coil unit and circular magnetic circuit unit.Wherein, voice coil unit includes sound
Circle, speech coil framework, centring disk, magnetic circuit unit includes washer, Magnet, T ferrum.Voice coil loudspeaker voice coil is combined fixing with vibrating diaphragm, and speech coil framework is used
In supporting voice coil loudspeaker voice coil, voice coil loudspeaker voice coil is made to be positioned at suitable position in magnetic gap.Centring disk is used for fixing voice coil loudspeaker voice coil, prevents voice coil loudspeaker voice coil in level
Direction polarizes.
In an embodiment of the present invention, driver element is circular configuration, this structure design compared with rectangular voice coil loudspeaker voice coil
Being more uniformly stressed of vibrating diaphragm can be made.Washer and T ferrum are magnetic conduction construction, are used for revising the magnetic line of force；Shape between Magnet and T ferrum
The magnetic gap become is used for accommodating voice coil loudspeaker voice coil.
In an embodiment of the present invention, driver element 5 is four positions being separately positioned on vibrating diaphragm corresponding top dome portion 1,
Be conducive to the combination that the voice coil loudspeaker voice coil of driver element 5 is stable with vibrating diaphragm, it is preferred that be positioned at four corners in top dome portion 1, enable vibrating diaphragm
The driving of balance.This structure uses undersized voice coil unit and magnetic circuit unit to drive shaking of large-sized woofer
Film, it is possible to reduce the thickness of woofer, additionally it is possible to save the size reduction cost of Magnet, improves the sensitive of woofer
Degree.Four driver elements 5 act on vibrating diaphragm, and driving force is uniform, it is possible to ensure enough on the basis of reducing driver element volume
Big driving power so that product more slimming, this performance can make the flat woofer of the present invention for
The electronic installation that power is bigger, such as liquid crystal TV set etc..
Shell 3 includes the annular sidewall 10 around mounting plane 9 and mounting plane, is provided with at the edge of annular sidewall 10
Fixing hole (marks) the most in FIG, and fixing hole is for flat woofer and electronic installation secure bond.This fixing hole can
To be arranged on annular sidewall the side away from vibrating diaphragm, it is also possible to increasing by a circle extension at annular sidewall periphery, fixing hole is equal
Even it is arranged on this extension.
Shell 3 uses aluminum alloy materials, and aluminum alloy materials strength ratio is relatively big, and stability is high.
Mounting plane 9 is provided with the installing hole 4 corresponding with driver element number and position and through mounting plane
Go out acoustic aperture, be provided with in the installing hole 4 of mounting plane 9 limit centring disk position limiting section, installing hole 4 is used for accommodating
Voice coil unit and the fixing magnetic circuit unit of installation.Going out acoustic aperture and include that center goes out acoustic aperture 7 and edge goes out acoustic aperture 8, center goes out acoustic aperture 7 and sets
Putting the center at mounting plane 9, corresponding with vibrating diaphragm zone line, edge goes out acoustic aperture 8 and is arranged on annular sidewall 10 and peace
Between dress hole 4, for whole mounting plane, edge goes out acoustic aperture 8 and is arranged on to go out on the edge that acoustic aperture 7 is corresponding with center.
Center goes out the size of acoustic aperture 7 and goes out the size of acoustic aperture 8 more than edge, goes out the gross area of acoustic aperture and flat bass loudspeaker
The ratio of the effective radiating area of device is 0.07～0.6；The air-flow asking bottom 1 to produce of vibrating diaphragm is more, and big to go out acoustic aperture favourable
Circulation in air-flow.
Bigger for the region in the middle of rectangular vibrating diaphragm, vibrating diaphragm, the air-flow of the generation of this part vibrating diaphragm is the most more, because of
This, be provided with center corresponding to the position of this part on mounting plane 9 and go out acoustic aperture 7, and the size that center goes out acoustic aperture 7 is relatively big,
Flow in or out from there for more air-flow.
In the embodiment shown in fig. 1, edge goes out acoustic aperture 7 for strip, and center goes out acoustic aperture 8, and to be set in parallel in installation flat
On face.It is of course also possible to edge gone out acoustic aperture according to the demand of loudspeaker applications to be designed as circle or other are irregularly shaped.
The upper side of the annular sidewall 10 of shell and the ring portion 2 edge secure bond of vibrating diaphragm.
Flat woofer also includes internal circuit and the FPCB6 of external circuit connecting speaker.
Fig. 2 is the FPCB structural representation according to the embodiment of the present invention.As in figure 2 it is shown, FPCB is T-shaped structure, including phase
The most independent two parts, every part electrically connects with two neighbouring voice coil units.Front surface A and the reverse side B of FPCB6 are provided with weldering
Dish 11, is arranged on FPCB double-edged pad 11 one_to_one corresponding respectively, is arranged on the pad 11 of FPCB front surface A respectively with each
Individual voice coil unit electrically connects, and, it is connected with external circuit by being arranged on the pad 11 of FPCB reverse side B, controls voice coil unit
Between connection in series-parallel relation.That is: the FPCB pad 11 near the front, side of voice coil unit electrically connects with voice coil leads, away from sound
The pad 11 of the side reverse side of coil unit electrically connects with the external circuit of speaker.
It should be noted that the concrete shape of FPCB can be adjusted according to the conditions of demand of electronic installation, pad
Circuit configuration is also not necessarily limited to situation shown in Fig. 2, can select other arrangement mode according to concrete product demand.
During electrical connection voice coil loudspeaker voice coil, utilize the circuit between pad, can be with series, parallel or string between voice coil loudspeaker voice coil
The mode combined in parallel connects flexibly.The most only electric connection mode with two kinds of voice coil units is illustrative.
Fig. 3-1 is four voice coil loudspeaker voice coil connection diagrams according to the embodiment of the present invention.As shown in figure 3-1, the most just belong to
Two voice coil unit series connection on same straight line are two branch roads, then by FPCB by two branch circuit parallel connections.
Fig. 3-2 is four voice coil loudspeaker voice coil connection diagrams according to another embodiment of the present invention.As shown in figure 3-2, respectively by position
The two voice coil loudspeaker voice coil series connection in same diagonal corner are two branch roads, then by just two branch circuit parallel connections of FPCB.
The side of electronic installation (such as LCD TV) plane remotely mounted with FPCB electrically connects, and FPCB is clamped and fastened on center
Speak on the mounting plane of bore edges.
Wherein, in a specific embodiment of the present invention, FPCB uses polyimide copper clad lamination base material, ties for rigidity
Structure, compared with existing plastic construction, polyimide copper clad lamination base material has stronger elasticity, it is not easy to rupture.
Fig. 4 and Fig. 5 is respectively FPCB according to embodiments of the present invention and outer casing frontispiece and reverse side schematic diagram.Such as Fig. 4 and Fig. 5
Shown in, FPCB6 is arranged on the both sides of shell 3, and wherein, FPCB electrically connects with voice coil leads near the side of voice coil unit, away from
The side of voice coil unit electrically connects with the external circuit of speaker.FPCB6 makes the structure phase of mounting plane 9 both sides by going out acoustic aperture
Connect.Further, FPCB6 and shell 3 secure bond by the way of bonding or engaging.
In the present embodiment, FPCB6 is T-shaped, and the center of being clamped to goes out on the mounting plane 9 at acoustic aperture 7 edge.?
FPCB6 is provided above with multiple pad (not marking at Fig. 4 and Fig. 5), and pad is connected with voice coil unit and external circuit.
Owing to FPCB6 is clamped on mounting plane, therefore to be in mounting plane 9 close for a part of FPCB6
The side of vibrating diaphragm, another part is in the mounting plane 9 side away from vibrating diaphragm.
The driver element used due to the present invention is more, therefore, in an embodiment of the present invention, uses FPCB to be electrically connected
Connect driver element and external circuit, be compared to common conductor connections, use FPCB can make simplified manufacturing process,
FPCB, only in conjunction with on mounting plane, sufficiently make use of the gap between magnetic circuit unit on mounting plane, sufficiently utilizes low
The inner space of sound speaker, saves the inner space of speaker, and can improve the stability of speaker.Additionally, drive
The quantity of unit is not limited to four, it is also possible to be six or more, and this FPCB all can be used to be electrically connected.
By above-mentioned embodiment it can be seen that the flat woofer of the present invention, four driver elements are used to divide
It is not arranged on vibrating diaphragm the position corresponding to top dome portion 1, the combination that beneficially voice coil loudspeaker voice coil of driver element 5 is stable with vibrating diaphragm, preferably
, it is positioned at four corners in top dome portion 1, enables the driving that vibrating diaphragm balances., this structure use undersized voice coil unit and
Magnetic circuit unit drives the vibrating diaphragm of large-sized woofer, it is possible to reduce the thickness of woofer, additionally it is possible to save Magnet
Size reduction cost, improve woofer sensitivity；Four driver elements act on vibrating diaphragm, and driving force is uniform, and
Ensure that driving power is sufficiently large, product is thin；Shell uses aluminum alloy materials, and aluminum alloy materials strength ratio is relatively big, stability
High；Use FPCB(Flexible Printed Circuit Board, be called for short FPCB or FPC, flexible print wiring board) connect
Voice coil loudspeaker voice coil and external circuit, only in conjunction with on mounting plane, sufficiently utilize the gap between magnetic circuit unit on mounting plane, fully
The inner space utilizing woofer, make product thinner；FPCB uses rigid structure, compared with existing plastic construction,
Polyimide copper clad lamination base material has stronger elasticity, it is not easy to rupture.
The flat woofer proposed according to the present invention is described in an illustrative manner above with reference to accompanying drawing.But,
It will be appreciated by those skilled in the art that the flat woofer that the invention described above is proposed, it is also possible to without departing from
Various improvement is made on the basis of present invention.Therefore, protection scope of the present invention should be by appending claims
Content determines.
Claims (8)
1. a flat woofer, the driver element separate including vibrating diaphragm, at least four and shell；Wherein,
Described vibrating diaphragm is tabular, including being positioned at the top dome portion of rigidity of center and being positioned at the ring portion of marginal position；
Described driver element includes independent voice coil unit and the magnetic circuit unit corresponding with described voice coil unit, four therein
Described voice coil unit is fitted four corners in the top dome portion being fixed on described vibrating diaphragm respectively；
Being provided with the installing hole for housing fixing described magnetic circuit unit on the housing, the upper side of described shell is with described
The edge secure bond in ring portion；Further,
Described flat woofer also includes the FPCB of internal circuit and the external circuit connecting described speaker, described
FPCB is arranged on the both sides of described shell, and wherein, described FPCB electrically connects with voice coil leads near the side of described voice coil unit,
Electrically connect with the external circuit of described speaker away from the side of described voice coil unit,
Wherein, described shell includes the annular sidewall around mounting plane and described mounting plane, sets on described mounting plane
Be equipped with through described mounting plane goes out acoustic aperture；Described FPCB goes out acoustic aperture and makes the structure phase of described mounting plane both sides described in passing through
Connect,
Wherein, go out acoustic aperture described in and include that the center being arranged on described mounting plane center goes out acoustic aperture；Described FPCB clamping is solid
Be scheduled on described center speak bore edges described mounting plane on, a part of described FPCB is in described mounting plane near institute
Stating the side of vibrating diaphragm, another part is in the described mounting plane side away from described vibrating diaphragm.
Flat woofer the most as claimed in claim 1, wherein,
Described FPCB and described shell be secure bond by the way of bonding or engaging.
Flat woofer the most as claimed in claim 1, wherein,
Described FPCB includes separate two parts, and every part electrically connects with two neighbouring voice coil units.
4. the flat woofer as according to any one of claims 1 to 3, wherein,
The tow sides of described FPCB are provided with pad, are arranged on the double-edged pad of described FPCB one_to_one corresponding respectively；
Wherein,
The pad being arranged on described FPCB front electrically connects with each voice coil unit respectively, and, described by being arranged on
The pad of FPCB reverse side controls the connection in series-parallel relation between described voice coil unit.
Flat woofer the most as claimed in claim 4, wherein,
Described FPCB uses polyimide copper clad lamination base material.
Flat woofer the most as claimed in claim 4, wherein,
The edge of described annular sidewall is provided with fixing described speaker and the fixing hole of electronic installation.
Flat woofer the most as claimed in claim 4, wherein,
Described top dome portion is honeycomb texture or foaming body structure.
Flat woofer the most as claimed in claim 1, wherein,
Described shell is aluminum alloy materials shell.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167574.3A CN103260118B (en) | 2013-05-08 | 2013-05-08 | Flat woofer |
| US14/889,103 US9648424B2 (en) | 2013-05-08 | 2013-05-31 | Tablet woofer |
| KR1020157034780A KR101707085B1 (en) | 2013-05-08 | 2013-05-31 | Tablet Woofer |
| PCT/CN2013/076560 WO2014180016A1 (en) | 2013-05-08 | 2013-05-31 | Tablet woofer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167574.3A CN103260118B (en) | 2013-05-08 | 2013-05-08 | Flat woofer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103260118A CN103260118A (en) | 2013-08-21 |
| CN103260118B true CN103260118B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310167574.3A Active CN103260118B (en) | 2013-05-08 | 2013-05-08 | Flat woofer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103260118B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014180014A1 (en) * | 2013-05-08 | 2014-11-13 | 歌尔声学股份有限公司 | Tablet woofer and electronic device using same |
| CN104105037A (en) * | 2014-07-08 | 2014-10-15 | 张坚胜 | Four-drive mega bass automobile loudspeaker |
| CN108271106A (en) * | 2018-01-08 | 2018-07-10 | 瑞声科技(新加坡)有限公司 | Loud speaker |
| CN109862484B (en) * | 2018-12-30 | 2021-10-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN115086843B (en) * | 2021-03-16 | 2023-11-28 | 华为技术有限公司 | Speaker and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101472211A (en) * | 2007-11-02 | 2009-07-01 | 安桥株式会社 | Voice coil assembly, loudspeaker using the same, and method for producing the same |
| CN101860783A (en) * | 2009-10-13 | 2010-10-13 | 东莞凡振工业电子有限公司 | Thin-type loudspeaker |
| CN201839427U (en) * | 2010-06-21 | 2011-05-18 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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2013
- 2013-05-08 CN CN201310167574.3A patent/CN103260118B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101472211A (en) * | 2007-11-02 | 2009-07-01 | 安桥株式会社 | Voice coil assembly, loudspeaker using the same, and method for producing the same |
| CN101860783A (en) * | 2009-10-13 | 2010-10-13 | 东莞凡振工业电子有限公司 | Thin-type loudspeaker |
| CN201839427U (en) * | 2010-06-21 | 2011-05-18 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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| CN103260118A (en) | 2013-08-21 |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |