CN206490823U - Planar diaphragm speaker - Google Patents
Planar diaphragm speaker Download PDFInfo
- Publication number
- CN206490823U CN206490823U CN201720150041.8U CN201720150041U CN206490823U CN 206490823 U CN206490823 U CN 206490823U CN 201720150041 U CN201720150041 U CN 201720150041U CN 206490823 U CN206490823 U CN 206490823U
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- vibrating diaphragm
- speaker
- planar
- upper gasket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004020 conductor Substances 0.000 claims abstract description 43
- 239000012634 fragment Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model is applied to loudspeaker techniques field, the planar diaphragm speaker of offer includes vibrational system and field system, vibrational system includes vibrating diaphragm diaphragm, coiling conductor, upper gasket and the lower gasket fitted on vibrating diaphragm membrane surface fixed in the shape of a spiral and a pair of connection shell fragments, upper gasket is held in the free end of coiling conductor the upper gasket, the vibrating diaphragm diaphragm and the lower gasket are fixed together provided with a pair of storage tanks and the via hole communicated with each storage tank, one end of each connection shell fragment.Upper gasket, vibrating diaphragm diaphragm and lower gasket are fixed together by the planar diaphragm speaker using shell fragment is connected, so that whole vibrational system is firmly connected, the one end for connecting shell fragment connects the free end of coiling conductor, to connect the coiling conductor of vibrational system, so that the vibrational system of whole planar diaphragm speaker is tended to remain on, it is to avoid quality distortion or noiseless phenomenon occur for planar diaphragm speaker.
Description
Technical field
The utility model belongs to loudspeaker techniques field, more particularly to a kind of planar diaphragm speaker.
Background technology
Loudspeaker is also known as " loudspeaker ", is a kind of electro-acoustic transducer device commonly used very much, in the electronic electric equipment of sounding
Using very universal.Dynamic speaker is also known as coil-moving speaker, and it is to apply electronic remote electro-acoustic transducer device.Electricity
Loudspeaker is because its is simple in construction, production easily, function admirable the features such as by user extensive favor, be current with most
Many and widest loudspeaker.
Together with conventional loudspeakers are not placed directly against with vibrating diaphragm due to its voice coil loudspeaker voice coil wire, but pass through scolding tin processing mode will
Voice coil loudspeaker voice coil wire is attached with terminal, simple to operate.However, the coiling conductor for planar diaphragm speaker is tight with vibrating diaphragm
It is close to what is be combined, so, just can not be by the way of scolding tin processing, temperature can be up to 360 DEG C when being handled due to scolding tin
Left and right or more than, be easy to directly burn out vibrating diaphragm.Therefore, the vibrational system of planar diaphragm speaker needs to use other modes
Coil-conductor and outside terminal are connected, for example, the ring washer on vibrating diaphragm two sides is extended into vibrating diaphragm center section to clamp vibrating diaphragm,
Coil-conductor after ring washer transition with outside terminal by connecting.
Although above-mentioned planar diaphragm speaker is relatively easy using the connected mode operation of ring washer and outside terminal,
There are problems that two：Because vibrating diaphragm is clamped close to middle subregion by the extension of two sides ring washer, in vibrating diaphragm work
This subregion can not participate in vibration when making, and also the effect of being pullled is caused and other domain oscillations for region in its vicinity
Disequilibrium, so as to cause distortion to a certain extent in terms of tonequality；Vibrating diaphragm center section, which is jammed, to be vibrated, still
It can be produced and pullled by the vibration of near zone, the possibility worked long hours loosening is had causes conductor not connect, finally led
Cause loudspeaker noiseless.
Utility model content
The purpose of this utility model is to provide a kind of planar diaphragm speaker, it is intended to solve plane diaphragm in the prior art
Loudspeaker clamps vibrating diaphragm due to the extension using ring washer to be caused other regions to be pullled and causes quality distortion
Technical problem.
The utility model is achieved in that a kind of planar diaphragm speaker includes vibrational system and field system, described
Vibrational system includes vibrating diaphragm diaphragm, the coiling conductor fitted on the vibrating diaphragm membrane surface fixed in the shape of a spiral, is arranged at institute
The connection shell fragment stated the upper gasket and lower gasket in vibrating diaphragm diaphragm opposite sides face and be arranged at for a pair on the upper gasket, it is described
The thickness direction of upper gasket and the lower gasket along the vibrating diaphragm diaphragm is stacked, the upper gasket provided with a pair of storage tanks with
And the via hole communicated with each storage tank, two free ends of the coiling conductor correspond respectively to via hole described in two, respectively
The connection shell fragment is fixed in the storage tank upper gasket, the vibrating diaphragm diaphragm and the lower gasket being fixed on one
Rise, one end of each connection shell fragment is held in the free end of the coiling conductor.
The utility model has the technical effect that relative to prior art：The planar diaphragm speaker utilizes the connection shell fragment
The upper gasket, the vibrating diaphragm diaphragm and the lower gasket are fixed together, so that whole vibrational system is securely fixed in
Together, and one end of the connection shell fragment connects the free end of the coiling conductor, to connect the coiling of the vibrational system
Conductor, so that the vibrational system of whole planar diaphragm speaker is tended to remain on, it is to avoid the plane diaphragm is raised one's voice
Quality distortion or noiseless phenomenon occur for device.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will to the utility model embodiment or
The accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings described below is only
Some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the vibrational system for the planar diaphragm speaker that the utility model embodiment is provided；
Fig. 2 is the partial enlarged drawing of II parts in Fig. 1；
Fig. 3 is the exploded view of vibrational system in Fig. 1；
Fig. 4 is the partial sectional view of vibrational system in Fig. 1, to show that connection shell fragment is led with upper gasket, vibrating diaphragm diaphragm, coiling
The annexation of body and lower gasket；
Fig. 5 is the structure chart of connection shell fragment in Fig. 1.
Description of reference numerals：
| 10 | Vibrating diaphragm diaphragm | 40 | Lower gasket |
| 12 | First surface | 50 | Connect shell fragment |
| 14 | Second surface | 52 | Stator |
| 20 | Coiling conductor | 54 | Kink |
| 22 | Free end | 56 | Warping part |
| 30 | Upper gasket | 60 | Rivet |
| 32 | Storage tank | ||
| 34 | Via hole |
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " length ", " width ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on attached
Orientation or position relationship shown in figure, are for only for ease of description the utility model and are described with simplified, rather than indicate or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.
Fig. 1 is refer to, the planar diaphragm speaker that the utility model embodiment is provided includes vibrational system and field system
(not shown), the vibrational system include vibrating diaphragm diaphragm 10, in the shape of a spiral fixation fit on the surface of vibrating diaphragm diaphragm 10
Coiling conductor 20, the upper gasket 30 and lower gasket 40 that are arranged at the opposite sides face of vibrating diaphragm diaphragm 10 and it is arranged at institute for a pair
State the connection shell fragment 50 on upper gasket 30, the thickness direction of the upper gasket 30 and the lower gasket 40 along the vibrating diaphragm diaphragm 10
It is stacked, the upper gasket 30 is provided with a pair of storage tanks 32 and the via hole 34 communicated with each storage tank 32, such as Fig. 2
Shown, two free ends of the coiling conductor 20 correspond respectively to via hole 34 described in two, and each connection shell fragment 50 is fixed on
It is each described so that the upper gasket 30, the vibrating diaphragm diaphragm 10 and the lower gasket 40 to be fixed together in the storage tank 32
One end of connection shell fragment 50 is held in the free end of the coiling conductor 20, as shown in Figure 4.
The utility model embodiment provide planar diaphragm speaker using it is described connection shell fragment 50 by the upper gasket 30,
The vibrating diaphragm diaphragm 10 and the lower gasket 40 are fixed together, so that whole vibrational system is rigidly secured together, and
One end of the connection shell fragment 50 connects the free end of the coiling conductor 20, to connect the coiling conductor of the vibrational system
20, so that the vibrational system of whole planar diaphragm speaker is tended to remain on, it is to avoid the planar diaphragm speaker
Occur quality distortion or noiseless phenomenon.
In this embodiment, the field system includes preceding field system (not shown) and rear field system (not shown),
The preceding field system and the rear field system are coaxial and are symmetrical arranged relative to the vibrational system.In one embodiment,
The preceding field system and rear field system include U iron, outer annular magnet and annular magnet, the U iron include bottom plate and
The flange of plane where being arranged on floor peripheral and protruding from bottom plate；The annular magnet is arranged on the centre bit of the bottom plate
Put, the outer annular magnet is arranged on bottom plate, and be located between annular magnet and flange, and it is same with the annular magnet
Axle is set.
In this embodiment, the coiling conductor 20 is formed on the vibrating diaphragm diaphragm 10 with etching mode, and is covered
The area of space for being located at the inner side of upper gasket 30 of the vibrating diaphragm diaphragm 10, to make full use of the surface of vibrating diaphragm diaphragm 10
Space, as shown in Figure 1.
Fig. 4 is refer to, in this embodiment, the vibrating diaphragm diaphragm 10 includes the first surface 12 and second back to setting
Surface 14, the upper gasket 30 is fixed on the first surface 12 and close to the edge of the first surface 12, the underlay
Circle 40 is fixed on the second surface 14 and close to the edge of the second surface 14, and the coiling conductor 20 is arranged at described
On the first surface 12 of vibrating diaphragm diaphragm 10.
Fig. 1 and Fig. 3 are refer to, in this embodiment, being shaped as the vibrating diaphragm diaphragm 10 is oval, circular or square
Shape；The upper gasket 30 and the lower gasket 40 are annular shape.The external diameter of the upper gasket 30 and the lower gasket 40 is little
In the external diameter of the vibrating diaphragm diaphragm 10, and shape is identical with the shape of the vibrating diaphragm diaphragm 10.The shape of the vibrating diaphragm diaphragm 10
It can be oval, circular or square, not limited to this；The upper gasket 30, the lower gasket 40 and the coiling conductor
20 shape is identical or oval, circular or square with the shape of the vibrating diaphragm diaphragm 10.Preferably, it is described
Vibrating diaphragm diaphragm 10, the upper gasket 30, the lower gasket 40 are conllinear with the center of the coiling conductor 20.The vibrating diaphragm diaphragm
10th, the upper gasket 30, the lower gasket 40 and the coiling conductor 20 are centrally located on same straight line.
Further, as shown in figure 5, each connection shell fragment 50 is strip.It refer to Fig. 4 and Fig. 5, the connection bullet
Piece 50 includes being contained in stator 52 in the storage tank 32, along described one end of stator 52 towards deviating from the upper gasket 30 1
Lateral bending rolls over the kink 54 of extension and along the other end of stator 52 towards warping part 56 recessed in the via hole 34,
The stator 52 is fixedly connected with the upper gasket 30, the vibrating diaphragm diaphragm 10 and the lower gasket 40, the kink 54
It is connected with the outside terminal, the warping part 56 is held in the coiling conductor 20.The connection shell fragment 50 is conduction material
Material is made and with certain elasticity, the stator 52 and the upper gasket 30, the vibrating diaphragm diaphragm 10 and the lower gasket
40 are fixedly connected, and the upper gasket 30, the vibrating diaphragm and the lower gasket 40 are rigidly secured together, warping part
56 are held on the free end of the coiling conductor 20 in the via hole 34, and the kink 54 is connected with outside terminal,
Whole vibrational system is set to remain connection.The kink 54 can pass through welding, contact pads or spiral shell with outside terminal
The modes such as line connection realize fixation.The warping part 56 is flexible, and is flexibly supported on the free end of the coiling conductor 20
On, it is close together by the elastic reaction and the free end of the coiling conductor 20 of the warping part 56, it is ensured that the two is all the time
Contact, so so that whole vibrational system is connected all the time.
In this embodiment, the curved shape in the warping part 56, it is preferable that the warping part 56 is in arc-shaped, so that institute
The bottom for stating warping part 56 is connected to the coiling conductor 20, realizes the connection of the coiling conductor 20.
Fig. 4 is refer to, further, the vibrational system is also included the stator 52 and the upper gasket 30, institute
State the rivet 60 that vibrating diaphragm diaphragm 10 and the lower gasket 40 are fixed together.The rivet 60 by the stator 52 with it is described on
Packing ring 30, the vibrating diaphragm diaphragm 10 and the lower gasket 40 are fixed together, easy to connect and reliability is high.The rivet 60
It can be substituted by other fasteners, for example, screw, pin etc..
Fig. 4 is refer to, further, each via hole 34 is located at the bottom land of the correspondence storage tank 32, the tilting
Portion 56 is located at the top of via hole 34 and is held in the coiling conductor 20 to the exposed free end in the via hole 34
On.The via hole 34 be located at the storage tank 32 bottom land so that the warping part 56 be held in the coiling conductor 20 it
On the free end for being exposed to the via hole 34, it is ensured that whole vibrational system is connected all the time.
Fig. 1 and Fig. 3 are refer to, further, the coiling conductor 20 is with double helix pattern winding by a wire
Into the edge of the wire from center from coil to coil to the vibrating diaphragm diaphragm 10 of the vibrating diaphragm diaphragm 10 is distributed in the shape of a spiral.It is described
By the center of the vibrating diaphragm diaphragm 10, outwards successively spiral is set wire in the way of double helix, and the wire is in the vibrating diaphragm film
The center of piece 10 and in starting helical position be connected with each other, and two free ends be located at formed helix outside, should
Two free ends are the first end of the vibrational system formed and the second end, with constitute the vibrational system into and out of end, and
Two via holes 34 of the first end and the second end respectively with the upper gasket 30 are corresponding, and are pasted in via hole 34 described in two,
Avoid drilling on the vibrating diaphragm diaphragm 10 so that first end and the second end are passed through, it is ensured that the integrality of the vibrating diaphragm diaphragm 10
And globality；It ensure that itself performance of the spiral conducting line and the vibrating diaphragm diaphragm 10, it is ensured that the work of vibrating diaphragm diaphragm 10
Compliance when making.
Fig. 2 is refer to, further, the wire is the aluminum conductor of flat.The vibrational system by described by leading
Line is arranged to flat, so that wire area increase shared on the vibrating diaphragm diaphragm 10, so as to enhance described
Vibrational system and the active area of the field system, are conducive to improving the low frequency audio of the planar diaphragm speaker.
Fig. 1 is refer to, further, the hand of spiral for the double helix pattern that the wire is used is consistent.The wire
Double helix direction it is identical, while clock wise spirals or simultaneously counter-clockwise helical, to ensure the whole vibrational system center
Uniformity.
Fig. 1 is refer to, further, the wire winds the spiral-shaped and vibrating diaphragm to be formed with double helix pattern
The shape of diaphragm 10 is identical.What the wire was formed obtains spiral-shaped identical with the shape of the vibrating diaphragm diaphragm 10, so that
The coiling conductor 20 fully takes the surface of the vibrating diaphragm diaphragm 10 so that the vibrating diaphragm diaphragm 10 is in the field system
It is fully utilized, is conducive to being lifted the low frequency audio of the planar diaphragm speaker.The spiral helicine wire is formed
Shape it is consistent with the shape of the vibrating diaphragm diaphragm 10 so that the vibrating diaphragm diaphragm 10 is fully used, to strengthen
State utilization rate when vibrating diaphragm diaphragm 10 is acted on the field system.
It is fixed together and the foregoing is only preferred embodiment of the present utility model, it is not new to limit this practicality
Type, all any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., it should be included in this
Within the protection domain of utility model.
Claims (10)
1. a kind of planar diaphragm speaker, including vibrational system and field system, it is characterised in that the vibrational system includes shaking
Film diaphragm, the coiling conductor fitted on the vibrating diaphragm membrane surface fixed in the shape of a spiral, to be arranged at the vibrating diaphragm diaphragm relative
The upper gasket and lower gasket of two sides and the connection shell fragment being arranged at for a pair on the upper gasket, the upper gasket and it is described under
Thickness direction of the packing ring along the vibrating diaphragm diaphragm is stacked, the upper gasket provided with a pair of storage tanks and with it is each described accommodating
The via hole that groove is communicated, two free ends of the coiling conductor correspond respectively to via hole described in two, and each connection shell fragment is consolidated
Due in the storage tank so that the upper gasket, the vibrating diaphragm diaphragm and the lower gasket to be fixed together, each connection
One end of shell fragment is held in the free end of the coiling conductor.
2. planar diaphragm speaker as claimed in claim 1, it is characterised in that each connection shell fragment is strip, and is wrapped
Include the stator being contained in the storage tank, deviate from the curved of upper gasket side bending extension along described stator one end court
Folding part and along the stator other end towards warping part recessed in the via hole, the stator and the upper pad
Circle, the vibrating diaphragm diaphragm are fixedly connected with the lower gasket, and the kink is connected with outside terminal, and the warping part is held in
In the coiling conductor.
3. planar diaphragm speaker as claimed in claim 2, it is characterised in that the vibrational system is also included the fixation
The rivet that piece is fixed together with the upper gasket, the vibrating diaphragm diaphragm and the lower gasket.
4. planar diaphragm speaker as claimed in claim 2, it is characterised in that it is described accommodating that each via hole is located at correspondence
The bottom land of groove, the warping part is located above the via hole and is held in the exposed in the via hole of the coiling conductor
Free end on.
5. the planar diaphragm speaker as described in Claims 1-4 any one, it is characterised in that the coiling conductor is served as reasons
A piece wire is entwined with double helix pattern, and the wire is from the center from coil to coil of the vibrating diaphragm diaphragm to the vibrating diaphragm diaphragm
Edge is distributed in the shape of a spiral.
6. planar diaphragm speaker as claimed in claim 5, it is characterised in that the wire is the aluminum conductor of flat.
7. planar diaphragm speaker as claimed in claim 5, it is characterised in that the double helix pattern that the wire is used
The hand of spiral is consistent.
8. planar diaphragm speaker as claimed in claim 5, it is characterised in that the wire is with double helix pattern winding institute shape
Into it is spiral-shaped identical with the shape of the vibrating diaphragm diaphragm.
9. the planar diaphragm speaker as described in Claims 1-4 any one, it is characterised in that the vibrating diaphragm diaphragm includes
Back to the first surface and second surface of setting, the upper gasket is fixed on the first surface and close to first table
The edge in face, the lower gasket is fixed on the second surface and close to the edge of the second surface, the coiling conductor
On the first surface for being arranged at the vibrating diaphragm diaphragm.
10. the planar diaphragm speaker as described in Claims 1-4 any one, it is characterised in that the field system includes
Preceding field system and rear field system, the preceding field system and the rear field system are coaxial and relative to the vibrational system
It is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150041.8U CN206490823U (en) | 2017-02-17 | 2017-02-17 | Planar diaphragm speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150041.8U CN206490823U (en) | 2017-02-17 | 2017-02-17 | Planar diaphragm speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490823U true CN206490823U (en) | 2017-09-12 |
Family
ID=59764059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720150041.8U Expired - Fee Related CN206490823U (en) | 2017-02-17 | 2017-02-17 | Planar diaphragm speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107566967A (en) * | 2017-09-18 | 2018-01-09 | 东莞市赞歌声学科技有限公司 | A kind of Loudspeaker diaphragm with conducting function |
| CN107580285A (en) * | 2017-09-18 | 2018-01-12 | 东莞市赞歌声学科技有限公司 | A kind of mobile phone ultrathin loudspeaker |
-
2017
- 2017-02-17 CN CN201720150041.8U patent/CN206490823U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107566967A (en) * | 2017-09-18 | 2018-01-09 | 东莞市赞歌声学科技有限公司 | A kind of Loudspeaker diaphragm with conducting function |
| CN107580285A (en) * | 2017-09-18 | 2018-01-12 | 东莞市赞歌声学科技有限公司 | A kind of mobile phone ultrathin loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 |