CN202889614U - Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal - Google Patents
Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal Download PDFInfo
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- CN202889614U CN202889614U CN 201220563471 CN201220563471U CN202889614U CN 202889614 U CN202889614 U CN 202889614U CN 201220563471 CN201220563471 CN 201220563471 CN 201220563471 U CN201220563471 U CN 201220563471U CN 202889614 U CN202889614 U CN 202889614U
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- voice coil
- magnetic
- magnet
- moving section
- sound film
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Abstract
The utility model discloses a voice coil and voice diaphragm integrated structure, a loudspeaker as well as a mobile terminal. The loudspeaker comprises a magnetic circuit part and a vibrating part; the magnetic circuit part comprises at least one magnet, and the magnets form a permanent magnetic field; the vibrating part comprises a voice coil and a voice diaphragm; the voice coil comprises at least one magnetic dynamic part formed by tiling and winding conductive voice coils; the magnetic dynamic parts are fixedly laid on a voice diaphragm, and vibrating clearances are laid on one side surfaces of the voice diaphragm and the voice coil, which face to the magnetic field; the magnetic dynamic parts and the magnets are arranged correspondingly, and magnetic fields generated under the electrified state of a voice coil wire on each magnetic dynamic part and magnetic fields generated by the corresponding magnets repel or attract mutually, so that voice coils and voice diaphragms are vibrated integrally under the mutual repelling and attraction effects, the air is actuated, and electric signals are converted into sound signals.
Description
Technical field
The application relates to electronic applications, the loud speaker that especially relates to and the portable terminals such as mobile phone that use this loud speaker.
Background technology
Loud speaker claims again " loudspeaker ", is a kind of electro-acoustic transducer device very commonly used, can both see it in the electronic electric equipment of sounding.The existing loud speaker that is used for mobile phone is voice coil loudspeaker voice coil to be inserted into magnetic gap realize the electroacoustic conversion, specifically please refer to Fig. 1, it comprises support 11, U iron 12(is called again yoke), magnet 13, washer 14(is called again elastomeric pad, spring washer), voice coil loudspeaker voice coil 15, sound film 16 and protecting cover 17, this U iron 12 can magnetic conduction, form the magnetic gap 18 of annular between magnet 13 and the U iron 12, this voice coil loudspeaker voice coil 15 comprises conductive voice coil line, the stacking toroidal that is wound in of this voice coil line, one end of this toroidal is fixed on the sound film 16, the other end is projection on sound film 16, and inserts in the magnetic circuit part magnetic gap.
But, voice coil loudspeaker voice coil 15 is that projection arranges from the sound film 16 in the loud speaker of this existing structure, so that the loud speaker integral thickness is thicker, the excessive space in sound chamber after can in same sound chamber, taking in the time of in applying to mobile device, and then so that rear sound cavity space diminish, low frequency has loss, has influence on the sound effect of loud speaker.And voice coil loudspeaker voice coil 15 inserts in the magnetic gap 18 in this kind structure, easily and magnet 13 and U iron 12 touch, can produce noise and cause the problems such as speaker volume is little.
Summary of the invention
The loud speaker that the application provides a kind of voice coil loudspeaker voice coil and sound film integrative-structure and uses this combining structure.According to the application's first aspect, the application provides a kind of loud speaker, comprising:
Magnetic circuit part is used for providing permanent magnetic field, and described magnetic circuit part comprises at least one magnet;
And oscillating component, described oscillating component comprises:
Voice coil loudspeaker voice coil, described voice coil loudspeaker voice coil comprise at least one by the moving section of magnetic that conductive voice coil line tiling coiling forms, and the moving section of each magnetic comprises one voice coil line at least;
The sound film, the moving section of described magnetic fixedly is laid on the sound film, and described sound film and voice coil loudspeaker voice coil are laid in the face of a side of magnet, have the gap for the vibration of sound film between described sound film and voice coil loudspeaker voice coil and the magnet; The corresponding setting with magnet of the moving section of described magnetic.
In a kind of more specifically embodiment, described sound film comprises underlying membrane and top layer film, and described voice coil loudspeaker voice coil is clipped between top layer film and the underlying membrane.
In a kind of more specifically embodiment, the moving section of described magnet and magnetic all is a plurality of, the moving section of all magnetic is by forming with one voice coil line coiling, at least a portion voice coil line is perpendicular to the external magnetic line of force of respective magnet in the moving section of each magnetic, and the magnetic pole of magnet distributes and makes the suffered force direction of voice coil line each several part voice coil line when having tone currents to flow through consistent.
In a kind of more specifically embodiment, described magnet arranges in the adjacent mode of homopolar end, and the moving section of described magnetic is corresponding one by one with magnet.
In a kind of more specifically embodiment, the moving section of described magnet and magnetic all is four.
In a kind of more specifically embodiment, also comprise protecting cover and support, described magnetic circuit part and sound film are fixed on the support, and described protecting cover covers the sound film.
In a kind of more specifically embodiment, have the sender that a plurality of one-tenth arrays distribute on the described protecting cover.
In a kind of more specifically embodiment, described support is provided with a plurality of damping holes.
According to the application's second aspect, the application provides a kind of voice coil loudspeaker voice coil and sound film integrative-structure, comprising:
The sound film comprises top layer film and underlying membrane;
And voice coil loudspeaker voice coil, comprising at least one by the moving section of magnetic that conductive voice coil line tiling coiling forms, the moving section of each magnetic comprises one voice coil line at least; Described voice coil loudspeaker voice coil is clipped between described top layer film and the underlying membrane.
The application's beneficial effect is:
Among the application, the corresponding setting of permanent magnetic field of the moving section of the magnetic of voice coil loudspeaker voice coil and magnet formation, and the voice coil line that forms the moving section of magnetic also can produce magnetic field in the energising situation, this magnetic field is comprised of the annular magnetic line of force that distributes around voice coil line, identical or opposite with magnetic direction that magnet forms, can form each other the effect of refusing mutually or inhaling mutually between the magnetic field, make voice coil loudspeaker voice coil and sound film this refuse mutually or interattraction under the one vibration, thereby to the air acting, make it convert the electrical signal to acoustical signal.To be voice coil line with the mode coiling of tiling be fixed on the sound film forms owing to the moving section of magnetic, can simplify sound film and voice coil loudspeaker voice coil structure, makes sound film and the attenuation of voice coil loudspeaker voice coil combining structure thickness, thereby further so that the loud speaker integral thinned.The application's voice coil loudspeaker voice coil is towards the laying of magnet one side and has the vibration gap, compared with prior art need not to form the annular magnetic gap by U iron, washer and magnet, therefore can save U iron and washer, also can avoid touching of voice coil loudspeaker voice coil and magnet, get rid of because the problems such as noise that this factor causes.
Description of drawings
Fig. 1 is a kind of structure cutaway view of mobile phone speaker;
Fig. 2 is a kind of example structure schematic diagram of the application's voice coil loudspeaker voice coil and sound film integrative-structure;
Fig. 3 is A part enlarged drawing among Fig. 2;
Fig. 4 is that voice coil line is laid schematic diagram among a kind of embodiment of the application's voice coil loudspeaker voice coil and sound film integrative-structure;
Fig. 5 is the cutaway view of a kind of embodiment of the application's loud speaker;
Fig. 6 is magnet set-up mode schematic diagram among a kind of embodiment of the application's loud speaker;
Fig. 7 is cover-protecting structure schematic diagram among a kind of embodiment of the application's loud speaker;
Fig. 8 is damping hole schematic diagram among a kind of embodiment of the application's loud speaker.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
In the embodiment of the present application, a kind of loud speaker comprises magnetic circuit part and oscillating component.This magnetic circuit part comprises at least one magnet, and magnet forms permanent magnetic field.This oscillating component comprises voice coil loudspeaker voice coil and sound film.This voice coil loudspeaker voice coil comprises the moving section of magnetic that at least one is formed by conductive voice coil line tiling coiling, the moving section of this magnetic is the combination of a section or many sections voice coil line, the application will be corresponding with same magnet arrange and can mutually produce the voice coil line of refusing mutually or inhaling mutually effect with same magnet under "on" position and partly combines and be called the moving section of magnetic, for example the combination of four sections voice coil line in the same dotted line frame is called the moving section 241 of a magnetic among Fig. 4, voice coil line in the moving section 241 of each magnetic under "on" position with the respective magnet magnetic field interaction, produce and refuse mutually or inhale mutually effect.Voice coil line is at least one in the moving section of each magnetic.The number of turns according to the voice coil line coiling is different, and the number of share of stock of voice coil line is also just different in the moving section of each magnetic, for example comprise four bursts of voice coil line in the moving section 241 of each magnetic among Fig. 4, and these four bursts of voice coil line all is to be formed by a voice coil line coiling multi-turn.The moving section of this magnetic fixedly is laid on the sound film, and sound film and voice coil loudspeaker voice coil are towards the laying of magnet one side and have the vibration gap.The corresponding setting with magnet of the moving section of magnetic, the magnetic field that voice coil line in the moving section of each magnetic produces under "on" position forms the effect of refusing mutually or inhaling mutually with the magnetic field that its respective magnet produces, make voice coil loudspeaker voice coil and sound film described refuse mutually or interattraction under the one vibration, thereby to the air acting, make it convert the electrical signal to acoustical signal.
The moving section of magnetic is that voice coil line is fixed on the sound film with the mode coiling of tiling, sound film and voice coil loudspeaker voice coil are combined into one, make sound film and the attenuation of voice coil loudspeaker voice coil combining structure thickness, thereby further so that the loud speaker integral thinned, enough spaces are provided for the rear sound chamber of application product, so that the low frequency characteristic that this product can more effective performance loud speaker.And the application's voice coil loudspeaker voice coil is to be layed in the magnet outside and to have certain vibration gap, compared with prior art, need not to form the annular magnetic gap by U iron, washer and magnet, therefore can save U iron and washer, simplify the production technology of loud speaker, reduce manufacturing cost, also can avoid touching of voice coil loudspeaker voice coil and magnet, get rid of the problems such as noise that cause owing to this factor, and then promote use product overall sound effect.
Below further specify with specific embodiment:
Please refer to Fig. 5, present embodiment discloses a kind of loud speaker, and it specifically comprises magnetic circuit part, oscillating component, support and protecting cover.This oscillating component comprises sound film 23 and voice coil loudspeaker voice coil 24, and this sound film 23 and voice coil loudspeaker voice coil 24 are structure as a whole.This magnetic circuit part comprises at least one bar-shaped magnet 22, for example four.
Please refer to Fig. 2-4, this sound film 23 comprises underlying membrane 231 and top layer film 232, and top layer film 232 is compounded on the underlying membrane 231.Part shown in this voice coil loudspeaker voice coil 24 comprises in the moving 241(of the section dotted line frame of at least one magnetic), for example can be four.The moving section 241 of this magnetic is by conductive voice coil line 242(such as copper cash etc.) the tiling coiling forms, drives whole voice coil loudspeaker voice coil and the sound film vibrates under the magnets magnetic fields effect.This tiling coiling is different from voice coil line winding method in the prior art, is in nonoverlapping mode, be laid on the underlying membrane 231, as shown in Figure 4 side by side with voice coil line 241.The moving section 241 of magnetic can be formed by same voice coil line 242 coilings, also can be formed by different voice coil line 242 coilings.In the present embodiment the moving section 241 of magnetic by a voice coil line 242 as shown in Figure 4 mode tile and turn to two square coil frames, and two magnetic that have respectively in each square coil frame move section 241, the moving section 241 of each magnetic has at least four bursts of voice coil line 242, for example voice coil line 242 tiling coilings four are enclosed in each coil former of present embodiment, so that have the coiling of tiling as shown in Figure 4 of 242, four bursts of voice coil line 242 of four bursts of voice coil line in the moving section 241 of each magnetic.Certainly, coil former also can be other shapes, such as ellipse etc.The moving section of a plurality of magnetic can be formed by the different conductor coiling respectively in other embodiments, for example multiple conducting wires is laid on the underlying membrane side by side, the selection of the moving section of magnetic this moment inside conductor and size of current and direction answer the magnetic field of corresponding bar-shaped magnet to arrange, it is the sense of current of capable of regulating wire, the magnetic field that magnetic field that the wire of the moving section of all magnetic produces and magnet are produced all shows mutually at synchronization inhales, and the magnetic field that the magnetic field that the wire that perhaps makes all magnetic move section produces and magnet produce all shows mutually at synchronization refuses.
Please continue the 2-4 with reference to figure, this voice coil loudspeaker voice coil 24 is clipped between underlying membrane 231 and the top layer film 232, is specially, and voice coil line 242 tilings in the voice coil loudspeaker voice coil 24 are wound on the underlying membrane 231, pushes down stationary tone astragal 242 with top layer film 232 again.Can effectively increase the internal resistance of sound film 23 in this structure, strengthen rigidity, so that the medium-high frequency of loud speaker is more steady, and top layer film 232 and underlying membrane 231 clamp voice coil line 242, can play to voice coil loudspeaker voice coil 24 effect of protection.This underlying membrane 231 can be selected the macromolecular polyester films series material, mainly is the compliance that guarantees sound film 23 edges.Top layer film 232 can be selected the material of papery and aluminium foil series, and the rigidity that increases sound film 23 is improved tonequality.
Please refer to Fig. 5 and 6, this magnetic circuit part comprises at least one bar-shaped magnet, and for example this example is corresponding with the moving section 241 of magnetic, adopts four magnets, can certainly be other quantity, for example one, two or three.This magnet 22 adopts permanent magnets, such as permanent magnet etc.Four magnets arrange in the adjacent mode of homopolar end, i.e. mode as shown in Figure 6, the N utmost point of first magnet is extremely relative with the N of second magnet from right to left certainly from a left side among the figure, the S utmost point of second magnet is extremely relative with the S of the 3rd magnet, the N utmost point of the 3rd magnet is extremely relative with the N of the 4th magnet, so analogize, in one line.And four moving sections 241 of magnetic are corresponding one by one with four magnets 22, the voice coil line 242 of the moving section 241 of magnetic as shown in Figure 6 mode is arranged on the magnet top, the purpose that arranges like this is to make the magnetic field that voice coil line 242 produces in the moving section 241 of magnetic to be positioned at identical or opposite direction with the magnetic field that magnet produces, the sense of current can be so that form the effect of inhaling or refusing mutually mutually on the voice coil line 242 under magnetic fields thereby by changing, and then so that voice coil loudspeaker voice coil 24 and the vibration of sound film one, to the air acting, the signal of telecommunication is changed into acoustic signal propagation go out.
The set-up mode of voice coil line 242 is not to only have shown in Figure 6 a kind ofly in the moving section 241 of magnetic, for example can also make voice coil line 242 oblique placement or oblique placement in perpendicular in horizontal plane on Fig. 6 basis.Hence one can see that, the magnetic direction that the magnetic direction that described voice coil loudspeaker voice coil 24 forms and magnet form is identical or be not to refer to that the magnetic direction after voice coil loudspeaker voice coil 24 energisings is necessary identical or opposite with the magnetic direction of magnet 22 formation on the contrary, it also comprises roughly the same or the situation such as opposite roughly, refuse mutually or mutually suction as long as namely meet to show as under the magnetic field interaction that magnetic field and magnet 22 after voice coil loudspeaker voice coil 24 energising form, but voice coil loudspeaker voice coil 24 and magnet 22 diversified facilities.
Illustrate further, direction shown in the arrow is as the sense of current in Fig. 6, the magnetic direction that the moving section of magnetic this moment 241 interior voice coil line 242 produce is opposite with the magnetic direction that bar-shaped magnet produces, and shows as 22 pairs of magnetic of magnet and moves section 241 and inhale mutually, and then show as voice coil loudspeaker voice coil 24 is inhaled mutually with the sound film.Otherwise, changing the sense of current of voice coil line 242, the magnetic direction that the moving section of magnetic 241 interior voice coil line 242 produce is identical with the magnetic direction that bar-shaped magnet produces, and shows as 22 pairs of magnetic of magnet and moves section 241 and refuse mutually, and then show as voice coil loudspeaker voice coil 24 is refused mutually with the sound film.
Please refer to Fig. 5, this magnetic circuit part, oscillating component and protecting cover all are fixedly mounted on the support, wherein, magnetic circuit part is positioned at the bottom of support 21, sound film 23 and voice coil loudspeaker voice coil 24 integrative-structures are tiled in the top of magnetic circuit part, sound film 23 and magnet 22 are arranged face-to-face, and leave the gap between the two, thereby avoid voice coil loudspeaker voice coil 24 directly to contact with magnet 22.Can also suitably reduce the distance between sound film 23 and the magnet 22, can promote sound press like this, when promoting sound press, can also further reduce thickness.Protecting cover 26 is arranged on the top of voice coil loudspeaker voice coil 24 and sound film integrative-structure, and and this voice coil loudspeaker voice coil 24 and sound film integrative-structure between also leave the gap.
Please refer to Fig. 7, this protecting cover 26 is for the protection of sound film 23, voice coil loudspeaker voice coil 24 and magnetic circuit part, and protecting cover 26 is located at voice coil loudspeaker voice coil 24 and sound film 23 integrative-structures top, is fixed on all around on the support 21.Can also offer a plurality of senders 261 on protecting cover 26,261 one-tenth arrays of this sender distribute, and can effectively bring into play the high frequency characteristics of loud speaker.
Please refer to Fig. 8, be provided with 8 damping holes 211 in the bottom of support 21 around magnet 22, this damping hole 211 is waist-shaped hole.Damping hole 211 is to reserve the debugging parametric loudspeaker to use, and increases one deck damping screen cloth on the basis of damping hole 211, regulates flow and the speed of Air Flow, thereby plays the effect of control vibrating diaphragm amplitude.The quantity of damping hole 211 can increase or reduce, and shape also has circle etc., and setting position has other mode to replace.
Operation principle is as follows in the present embodiment:
Because the magnetic field that bar-shaped magnet 22 characteristics own produce as shown in Figure 6, and the voice coil line 242 of the moving section 241 of composition magnetic also can produce magnetic field in the energising situation, this magnetic field is comprised of the annular magnetic line of force that distributes around voice coil line 242.Therefore produce electromagnetic energy by electric energy by voice coil loudspeaker voice coil, the moving section 241 of the magnetic of voice coil loudspeaker voice coil is identical or opposite with the magnetic direction of magnet 22 according to the different formed magnetic line of force direction of the sense of current, thereby produce active force with the magnet 22 of bottom, recycling mechanical energy promotes voice coil loudspeaker voice coil 24 and sound film integrative-structure produces vibration, produces sound (acoustic energy) thereby promote air.
Structure shown in this enforcement is through improving the thickness that can reduce loud speaker, for sound chamber behind the product provides larger space, can promote horn volume and bass effect, can reduce the production cost of whole loudspeaker, be applicable to various such as mobile electronic devices such as mobile phone, panel computers.
The present invention also provides a kind of portable terminal that uses described any loud speaker of above-described embodiment, and this portable terminal can be mobile phone, panel computer etc.
Above content is the further description of the present invention being done in conjunction with concrete execution mode, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace.
Claims (10)
1. a loud speaker is characterized in that, comprising:
Be used for providing the permanent magnetic field magnetic circuit part, described magnetic circuit part comprises at least one magnet;
And oscillating component, described oscillating component comprises:
Voice coil loudspeaker voice coil, described voice coil loudspeaker voice coil comprise at least one by the moving section of magnetic that conductive voice coil line tiling coiling forms, and the moving section of each magnetic comprises one voice coil line at least;
The sound film, the moving section of described magnetic fixedly is laid on the sound film, and described sound film and voice coil loudspeaker voice coil are laid in the face of a side of magnet, have the gap for the vibration of sound film between described sound film and voice coil loudspeaker voice coil and the magnet; The corresponding setting with magnet of the moving section of described magnetic.
2. loud speaker as claimed in claim 1 is characterized in that, described sound film comprises underlying membrane and top layer film, and described voice coil loudspeaker voice coil is clipped between top layer film and the underlying membrane.
3. loud speaker as claimed in claim 1 or 2, it is characterized in that, the moving section of described magnet and magnetic all is a plurality of, the moving section of all magnetic is by forming with one voice coil line coiling, at least a portion voice coil line is perpendicular to the external magnetic line of force of respective magnet in the moving section of each magnetic, and the magnetic pole of magnet distributes and makes the suffered force direction of voice coil line each several part voice coil line when having tone currents to flow through consistent.
4. loud speaker as claimed in claim 3 is characterized in that, described magnet arranges in the adjacent mode of homopolar end, and the moving section of described magnetic is corresponding one by one with magnet.
5. loud speaker as claimed in claim 4 is characterized in that, the moving section of described magnet and magnetic all is four.
6. loud speaker as claimed in claim 4 is characterized in that, also comprises protecting cover and support, and described magnetic circuit part and sound film are fixed on the support, and described protecting cover covers the sound film.
7. loud speaker as claimed in claim 6 is characterized in that, has the sender that a plurality of one-tenth arrays distribute on the described protecting cover.
8. loud speaker as claimed in claim 6 is characterized in that, described support is provided with a plurality of damping holes.
9. a portable terminal is characterized in that, it comprises each described loud speaker of claim 1-8.
10. a voice coil loudspeaker voice coil and sound film integrative-structure is characterized in that, comprising:
The sound film comprises top layer film and underlying membrane;
And voice coil loudspeaker voice coil, comprising at least one by the moving section of magnetic that conductive voice coil line tiling coiling forms, the moving section of each magnetic comprises one voice coil line at least; Described voice coil loudspeaker voice coil is clipped between described top layer film and the underlying membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563471 CN202889614U (en) | 2012-10-30 | 2012-10-30 | Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563471 CN202889614U (en) | 2012-10-30 | 2012-10-30 | Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202889614U true CN202889614U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220563471 Expired - Fee Related CN202889614U (en) | 2012-10-30 | 2012-10-30 | Voice coil and voice diaphragm integrated structure, loudspeaker as well as mobile terminal |
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| CN (1) | CN202889614U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970641A (en) * | 2012-10-30 | 2013-03-13 | 深圳天珑无线科技有限公司 | Voice coil and voice diaphragm integrated structure, speaker and mobile terminal |
| CN106535080A (en) * | 2016-11-28 | 2017-03-22 | 黄清山 | Cone paper and voice coil framework integrated forming process and forming die set |
| CN112714377A (en) * | 2019-10-24 | 2021-04-27 | 比亚迪股份有限公司 | Sound processing device and electronic equipment |
| CN114679674A (en) * | 2022-03-29 | 2022-06-28 | 维沃移动通信有限公司 | Speaker and electronic equipment |
-
2012
- 2012-10-30 CN CN 201220563471 patent/CN202889614U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102970641A (en) * | 2012-10-30 | 2013-03-13 | 深圳天珑无线科技有限公司 | Voice coil and voice diaphragm integrated structure, speaker and mobile terminal |
| CN102970641B (en) * | 2012-10-30 | 2016-08-24 | 深圳天珑无线科技有限公司 | A kind of voice coil loudspeaker voice coil and sound film integrative-structure, speaker and mobile terminal |
| CN106535080A (en) * | 2016-11-28 | 2017-03-22 | 黄清山 | Cone paper and voice coil framework integrated forming process and forming die set |
| CN106535080B (en) * | 2016-11-28 | 2019-04-26 | 黄清山 | For rousing paper and the integrally formed shaping mould group of speech coil framework and integral formation method |
| CN112714377A (en) * | 2019-10-24 | 2021-04-27 | 比亚迪股份有限公司 | Sound processing device and electronic equipment |
| CN114679674A (en) * | 2022-03-29 | 2022-06-28 | 维沃移动通信有限公司 | Speaker and electronic equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20181030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |