CN101771918B - Thermal sounding device - Google Patents
Thermal sounding device Download PDFInfo
- Publication number
- CN101771918B CN101771918B CN 200810191736 CN200810191736A CN101771918B CN 101771918 B CN101771918 B CN 101771918B CN 200810191736 CN200810191736 CN 200810191736 CN 200810191736 A CN200810191736 A CN 200810191736A CN 101771918 B CN101771918 B CN 101771918B
- Authority
- CN
- China
- Prior art keywords
- fixed frame
- electrode
- sounding
- hot
- thermal
- 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
Images
Abstract
The invention relates to a thermal sounding device, which comprises a thermal sounding module and a fixed frame. The thermal sounding module is fixed in the fixed frame by the fixed frame. The sounding module comprises a thermal sounding film and at least one first electrode and at least one second electrode which are connected with the thermal sounding film electrically. The thermal sounding film of the thermal sounding device provided by the invention is packaged and fixed by the fixed frame, so an integrated product structure having the thermal sounding film is formed.
Description
Technical field
The present invention relates to a kind of thermal sounding device, relate in particular to a kind of thermal sounding device with hot sounding film.
Background technology
Traditional sound-producing device such as electrodynamic type, electromagnetic type, electrostatic, piezoelectric type, ionization minor and pneumatic type etc. mostly adopt a vibrating diaphragm as sounding component.For making the described vibrating diaphragm can vibration sounding, described sounding module not only need arrange a space for described vibrating diaphragm vibration, a baroque vibratory driver also need be set drive described vibrating diaphragm vibration.Therefore, the encapsulating structure more complicated of described sound-producing device needs the factor of consideration more.
People such as Fan Shoushan disclose a kind of new sounding component in October, 2008, this sounding component is a hot sounding film.See also document " Flexible, Stretchable, Transparent Carbon NanotubeThin Film Loudspeakers ", Fan et al., Nano Letters, Vol.8 (12), 4539-4545 (2008).This hot sounding film is utilized heat sound principle, adopts the carbon nano-tube film with very big specific area and minimum unit are thermal capacitance made.After this carbon nano-tube film receives an external signal by at least two electrodes, change the density of surrounding medium and send sound wave, and the intensity of this sound wave and audible frequency all people's ear the scope of energy perception.
Yet, still this hot sounding film is not carried out the fixing thermal sounding device of overall package at present.And, because the sounding principle of this hot sounding film and traditional vibrating membrane have very big difference, drive as not needing vibrator, do not need oscillation space etc.Certain difficulty can appear when therefore utilizing traditional packaging and fixed structure or technology to fix encapsulation for described hot sounding film.
Summary of the invention
In view of this, be necessary to provide a kind of thermal sounding device, the hot sounding film in this thermal sounding device is fixed by overall package.
A kind of thermal sounding device, it comprises a hot sounding module and a fixed frame.Described fixed frame should hot sounding module be fixed therebetween.This sounding module comprises a hot sounding film and at least one first electrode and at least one second electrode that are electrically connected with described hot sounding mould.
A kind of thermal sounding device, it comprises a hot sounding module and a fixed frame.Described fixed frame should hot sounding module be fixed therebetween.This hot sounding module comprises a dielectric moldings, and described dielectric moldings has at least two first frame and second frames that arrange relatively.At least one first electrode and at least one second electrode gap are arranged between described first and second frame.One hot sounding film is laid and is electrically connected on described first and second electrode.
A kind of thermal sounding device, this thermal sounding device comprise a hot sounding module and an insulation fixed frame, described fixed frame should hot sounding module around fixing therebetween.This sounding module comprises a carbon nano-tube film and one first electrode and one second electrode that are electrically connected with described carbon nano-tube film.Described fixed frame comprise an inner side edge towards this carbon nano-tube film and with the opposing outer side edges of inner side edge.This first electrode and second electrode comprise that respectively one electrically contacts the outer side edges that end is exposed to this fixed frame.
A kind of thermal sounding device, this thermal sounding device comprise a hot sounding module and an insulation fixed frame, described fixed frame should hot sounding module around fixing therebetween.This sounding module comprises a carbon nano-tube film and one first electrode and one second electrode that are electrically connected with described carbon nano-tube film.Described fixed frame comprises that an inner side edge is towards a side of this carbon nano-tube film and and approximate vertical adjacent with inner side edge.This first electrode and second electrode comprise that respectively one electrically contacts the side that end is exposed to and the approximate vertical adjacent with inner side edge of this fixed frame.
Compared with prior art, the hot sounding film in the described thermal sounding device so forms the complete product structure of the hot sounding film of a tool by described fixed frame encapsulation and fixing.
Description of drawings
Fig. 1 is the assembling schematic diagram of the thermal sounding device that provides of first embodiment of the invention.
Fig. 2 is the three-dimensional exploded view of Fig. 1.
Fig. 3 is the schematic diagram of first fixed frame of thermal sounding device among Fig. 1.
Fig. 4 is the schematic diagram of second fixed frame of thermal sounding device among Fig. 1.
Fig. 5 is the schematic diagram of the fixed frame of thermal sounding device among Fig. 1.
Fig. 6 is the three-dimensional exploded view of the sounding module of thermal sounding device among Fig. 1.
Fig. 7 is the schematic diagram after the sound-producing device among Fig. 1 removes second fixed frame.
Fig. 8 is the thermal sounding device assembling schematic diagram that second embodiment of the invention provides.
Fig. 9 is the three-dimensional exploded view of Fig. 1.
Figure 10 is the schematic diagram after the sound-producing device among Fig. 8 removes second fixed frame.
Embodiment
Describe the thermal sounding device of the embodiment of the invention in detail below with reference to accompanying drawing.
See also Fig. 1 and Fig. 2, first embodiment of the invention provides a thermal sounding device 100, and it comprises a fixed frame 10, one sounding module 20, two protective devices 30.Described protective device 30 is positioned at the both sides of described sounding module 20, and described fixed frame 10 is fixed sounding module 20 and protective device 30 therebetween.
Described fixed frame 10 is a square framework, and it comprises one first fixed frame 11 and one second fixed frame 12, and this first fixed frame 11 and second fixed frame 12 lay respectively at the both sides of described sounding module 20.
See also Fig. 3 and Fig. 4, described first and second fixed frame 11,12 is respectively a square framework, and this each first and second fixed frame 11,12 is surrounded by four end to end plate shaped frames.Described first and second fixed frame 11, each frame of 12 extend internally out a flange 111,121 to lean with described protective device 30 away from the edge of described sounding module 20.
The inside edge of the All Border of described first fixed frame 11 protrudes out a bulge loop 112 towards sounding module 20.This fixed frame 11 has a frame 113, and bulge loop 112 central position that are positioned on this frame 113 are offered a breach, and with the connector of a ccontaining reception external signal, this connector is two metal contacts 114 in the present embodiment.Described two metal contacts 114 are electrically connected with this sounding module 20 by two leads.One supporting bracket 115 is faced from this frame 113 and flange 111 and is connect the position and extend and arrange to support described sounding module 20, and the end face of this supporting bracket 115 is low than flange 111.The position corresponding with described breach, the surface of this frame 113 offers two grooves 1131, to cooperate with described two metal contacts 114.Bulge loop 112 on described supporting bracket 115 and the frame 113 is enclosed to form a trough with ccontaining described lead.
In described second fixed frame 12 towards the madial wall of a frame 122 of sounding module 20 supporting bracket 123 that extends internally out.This supporting bracket 123 is "T"-shaped setting, and its top flushes common support sounding module 20 with supporting bracket 115 tops, and the space on these supporting bracket 123 both sides forms trough with ccontaining described lead.The All Border of described second fixed frame 12 and flange 121 face and connect the position and also extend a support bar 124 to match with described bulge loop 112.
This is first and fixed frame 11,12 when fastening years old, the screwed hole that passes first and second fixed frame 11,12 4 corners by screw carries out screw lock, certainly this two fixed frame 11,12 cooperation are not limited to screw closure, can also be by other manner, for example riveted joint, bonding, buckle, modes such as interlocking connection.
See also Fig. 5, form an accommodation space 13 for ccontaining described sounding module 20 and protective device 30 together jointly after described first and second fixed frame 11,12 cooperates.
See also the described sounding module 20 of Fig. 6 and comprise many first electrodes 21, many second electrode, 22, one hot sounding film 23, one insulation frame 24, one first conducting strips 25 and one second conducting strips 26.Many first and second electrodes 21,22 are fixed on the insulation frame 24.Described first conducting strip 25 is used for making described many first electrodes 21 to be electrically connected, and described second conducting strip 26 is used for making described many second electrodes 22 to be electrically connected, and described first and second conducting strip 25,26 is fixed on the described insulation frame 24.
Described first electrode 21 and second electrode 22 are for being distributed in conplane many bar-shaped or strip shaped electric poles, and it is used for the described hot sounding film 23 of support fixation and is electrically connected with hot sounding film 23.This first electrode 21 and second electrode 22 are parallel to each other and each first electrode 21 and each second electrode, 22 adjacent setting.Described first electrode 21 and second electrode 22 are formed by electric conducting material, and particularly, this electric conducting material comprises stainless steel, tungsten, metal or alloy such as nickel.
Described hot sounding film 23 is the sounding component of described thermal sounding device 100, and when this hot sounding film 23 received an external signal by described first electrode 21 and second electrode 22, this hot sounding film 23 changed the density of its surrounding medium and sends sound wave.
Described hot sounding film 23 comprises one deck carbon nano-tube film, and the carbon nano-tube in this carbon nano-tube film is arranged of preferred orient in the same direction.Preferably, described carbon nano-tube is arranged of preferred orient along the radial direction of described first electrode 21 or second electrode 22.Certainly, this hot sounding film 23 can also comprise the multilayer carbon nanotube film, and the orientation of the carbon nano-tube in the adjacent carbon nano-tube film forms an angle β, 0 °≤β≤90 °, combines closely by Van der Waals force between the adjacent two layers carbon nano-tube film.When described hot sounding film 23 comprised the single-layer carbon nano-tube film, it had light transmittance preferably, and its light transmittance is 67%～95%.When hot sounding film 23 comprised the multilayer carbon nanotube film, it had mechanical strength and toughness preferably.Described hot sounding film 23 is not limited to described carbon nano-tube film, and it can also can utilize the film of heat sound principle sounding for other.
Described insulation frame 24 is used for fixing described first electrode 21 and second electrode 22.This insulation frame 24 comprises that two parallel and first plate bodys 241 of being oppositely arranged and two other be arranged in parallel and connect second plate body 242 of 2 first plate bodys, 21 ends.Described first and second plate body 241,242 can be one-body molded, also can divide to be arranged.Being arranged between described two first plate bodys 241 of described first electrode 21 and second electrode 22.Each second plate body, 242 both sides is provided with elastic fastening plate 243, in order to cooperate with described protective device 30.Be appreciated that ground, described elastic fastening plate 243 can also be arranged on 2 first plate bodys 241, to realize the combination of insulation frame 24 and protective device 30.
Described first conducting strip 25 and second conducting strip 26 are separately fixed on the lateral wall of described two first plate bodys 241, and this first conducting strip 25 is connected with 21 insulation of described first electrode respectively and is electrically connected with second electrode 22.This second conducting strip 26 is electrically connected with described first electrode 22 respectively and is connected with 22 insulation of second electrode.In the present embodiment, this first conducting strip 25 and second conducting strip 26 are fixed on described first framework 241 by the mode of being spirally connected, and certainly, the fixed form of this first conducting strip 25 and second conducting strip 26 and first framework 241 is not limited to be spirally connected.This first and second conducting strip 25,26 can also be fixed by modes such as riveted joint, bonding, buckle and first framework 241.
Particularly, an end of described each first electrode 21 is connected by insulation spacer insulation with described first conducting strip 25, and the other end then is electrically connected with described second conducting strip 26 by welding.One end of described each second electrode 22 is led pad by welding and described first and is electrically connected, and the other end then connects by insulation spacer insulation.Thus, described first electrode 21 is electrically connected with second conducting strip 26, and described second electrode 22 is electrically connected with described first conducting strip 25.
Described two protective devices 30 are positioned at the both sides of sounding module 20, and each protective device 30 all with the setting of being separated by of described hot sounding film 23.Described each protective device 30 is fenestral fabric, has a plurality of mesh, and it can be by forming to the metallic plate etching or by the metal wire braiding.The edge of described protective device 30 is provided with the breach 31 that a plurality of and described elastic fastening plate 243 matches.Described protective device 30 is by described elastic fastening plate 243 and breach 321 and described sounding module 20 fixing and location.In described sounding module 20 both sides one protective device 30 is set respectively, avoids described hot sounding film 23 directly to contact with external environment condition, thereby reduce the interference of the hot sounding film 23 of outer bound pair.Protective device 30 mesh-structured then is used for making things convenient for the propagation of the sound wave that this hot sounding film 23 sends.
When assembling described thermal sounding device 100, breach 31 in the described carriage 30 is corresponding with described elastic fastening plate 243, make described two protective device 30 snap fit in the both sides of described sounding module 20, described protective device 30 covers in described hot sounding film 23, the both sides of described hot sounding film 23 are protected, and described protective device 30 has a plurality of mesh, the sounding of convenient described thermal sounding device 100; With described protective device 30 and sounding module 20 first fixed frame 11 of packing into, and be carried on described first fixed frame 11 and the flange 111 formed steps, and make this first conducting strip 25 corresponding with this frame 111; See also Fig. 7, described two metal contacts 114 are separately fixed in described two grooves 1131, and with two leads described two metal contacts 114 are electrically connected with sounding module 20, certainly, also directly described two metal contacts 114 pass through mode such as welding and directly are electrically connected with described sounding module 20; At last; described second fixed frame 12 is cooperated with first fixed frame 11; described protective device 30 and sounding module 20 are placed in by in the accommodation space 13 that forms jointly together after described first and second fixed frame 11,12 cooperations, and described lead then is contained in the trough that is enclosed to form by the bulge loop 113 on described supporting bracket 115 and the frame 113.
When described thermal sounding device 100 is worked, accept external signal by described two metal contacts 114, this two metals contact 114 is electrically connected with described first electrode 21 and second electrode 22, and described external signal is transferred to described hot sounding film 23, drives this hot sounding film 23 sounding.
Be appreciated that described two metal contacts 114 be respectively described first and second electrode 21,22 electrically contact end, be exposed to side or the outer side edges of described fixed frame 10, in order to receive external signal.This side comprises the lateral wall of any frame in first fixed frame 11 and second fixed frame 12.This outer side edges comprises flange 111,121 lateral wall with opposing towards the inner side edge of this carbon nano-tube film.In the present embodiment, described electrically contact the end be exposed in the described frame 111 groove 1131.Certainly, described exposure refers to that this electrically contacts end and can directly contact with outside source, is not limited to expose from described fixed frame 10.
In sum, the number of elements that described thermal sounding device 100 needs is fewer, relatively simple for structure, and assembling process is easier.And sound transmission and heat radiation are convenient in described hot sounding film 23 unsettled settings.Certainly, the assembling of this thermal sounding device 100 is not limited to described process, can suitably change according to actual conditions.
See also Fig. 8 to Figure 10, second embodiment of the invention provides a sound-producing device 200, and it comprises a fixed frame 210 and a sounding module 220, and described fixed frame 210 is fixed sounding module 220 therebetween.Described fixed frame 210 is a square framework, and it comprises one first fixed frame 211 and one second fixed frame 212, and this first fixed frame 211 and second fixed frame 212 lay respectively at the both sides of described sounding module 220.Described sounding module 220 comprises a plurality of first electrodes 221, a plurality of second electrode 222 and a hot sounding film 223.Described first electrode 221 and second electrode 222 are laid and be electrically connected on to described hot sounding film 223.
In the present embodiment, structure and the function of the sound-producing device 100 among the structure of described sound-producing device 200 and function and first embodiment are basic identical, see also Fig. 9, its main distinction is that described first fixed frame 211 and second fixed frame 212 have identical structure and be symmetrical arranged about sounding module 220.This each first and second fixed frame 211,212 is surrounded by end to end four frames.
The edge away from sounding module 220 of described first and second fixed frame 211, each frame of 212 extends internally out a flange 2111,2121 to lean with described sounding module 220.Have two grooves 2113 respectively towards a frame 2112 of described sounding module 220,2122 end face, be used for making things convenient for this sounding module 220 to receive external signal.
Described first electrode 221 and second electrode 222 are laid and be electrically connected on to described hot sounding film 223.The one or both ends of described first electrode 221 and second electrode 222 are fixing by described first fixed frame 211 and second fixed frame 212.And described first and second electrode 221,222 has a projection that is electrically connected with described first and second electrode 221,222 respectively and stretches into described two grooves 2113 respectively, and this projection is the end that electrically contacts of described first electrode 221 and second electrode 222.Described first and second electrode 221,222 electric connecting terminal also can stretch out fixed frame 210 from described two grooves 2113.Sounding module 220 also comprises two bonding conductors 224, and one of them bonding conductor 224 is electrically connected with many first electrodes 221, and an other bonding conductor 224 is electrically connected with many second electrodes 222.This bonding conductor 224 can with described first and second electrode 221,222 one-body molded, also can divide to be arranged.Described two bonding conductors 224 are positioned on the described flange 2111,2121.
Described sound-producing device 200 also can arrange a sheet metal at each groove 2113, be used for to receive described external signal, this two sheet metal and first electrode 221 and second electrode 222 be electrically connected respectively as this first and second electrode 221,222 electrically contact end.Described sound-producing device 200 can also include only one first electrode 221 and one second electrode 222, and described first and second electrode 221, an end of 222 stretch into described two grooves 2113 respectively or stretch out fixed frame 210 from described two grooves 2113.
When assembling described sound-producing device 200, with described sounding module 220 first fixed frame 211 of packing into, and make described substrate 121 be carried on described carrier 112, and make wherein that one first electrode 221 and one second electrode 222 stretch into described two grooves 2113 respectively; Load onto described second fixed frame 212, first and second fixed frame 211,212 is cooperatively interacted with described sounding module 220 clampings therebetween.
When described sound-producing device 200 is worked, first electrode 221 and second electrode 222 that stretch into described two grooves 2113 are connected respectively with the both positive and negative polarity of an outside source, receive an external signal rear drive and are laid on the density of the hot sounding film 223 change surrounding mediums on described first and second electrode 221,222 and send sound wave.
The sound-producing device 100 that the sound-producing device 200 that present embodiment provides provides with respect to first embodiment, it number of elements that comprises further reduces, and encapsulating structure is also more simple.
Hot sounding film in the described thermal sounding device so forms the complete product structure of the hot sounding film of a tool by described fixed frame encapsulation and fixing.
In addition, those skilled in the art also can do other variations in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (19)
1. thermal sounding device, it is characterized in that, this thermal sounding device comprises a hot sounding module and a fixed frame, described fixed frame should hot sounding module be fixed therebetween, described fixed frame comprises one first fixed frame and one second fixed frame that lays respectively at described hot sounding module both sides, this first fixed frame cooperates the periphery that inserts and puts described hot sounding module jointly with second fixed frame, and this hot sounding module comprises a hot sounding film and at least one first electrode and at least one second electrode that are electrically connected with described hot sounding film.
2. thermal sounding device as claimed in claim 1 is characterized in that, described hot sounding film comprises one deck carbon nano-tube film at least.
3. thermal sounding device as claimed in claim 2 is characterized in that, described carbon nano-tube film comprises that the carbon nano-tube of several almost parallels axially extends to this at least one second electrode from this at least one first electrode along it.
4. thermal sounding device as claimed in claim 3 is characterized in that, described hot sounding film is overlapped and formed by the multilayer carbon nanotube film, and adjacent two carbon nano-tube films connect by Van der Waals force.
5. thermal sounding device as claimed in claim 1 is characterized in that, described first and second fixed frame is surrounded by four end to end frames.
6. thermal sounding device as claimed in claim 1 is characterized in that, each frame of described first and second fixed frame is away from the edge of the hot sounding module flange that leans with described hot sounding module that extends internally out.
7. thermal sounding device as claimed in claim 6 is characterized in that, the All Border of described first fixed frame protrudes out a bulge loop towards hot sounding module, and this bulge loop is in order to engage with each frame edge of second fixed frame.
8. thermal sounding device as claimed in claim 6 is characterized in that, described at least one first and second electrode is positioned on the described flange.
9. thermal sounding device as claimed in claim 8 is characterized in that, is provided with two grooves towards the end face of a frame of hot sounding module, and wherein one first electrode and one second electrode stretch into respectively in described two grooves.
10. as claim 6 or 7 described thermal sounding devices, it is characterized in that, described hot sounding module also comprises a dielectric moldings that fits with described flange, described dielectric moldings comprises 2 first plate bodys that are oppositely arranged at least, described at least one first electrode and at least one second electrode are arranged between described 2 first plate bodys, and a hot sounding film is laid and is electrically connected on described at least one first electrode and at least one second electrode.
11. thermal sounding device as claimed in claim 10 is characterized in that, described second fixed frame is towards the madial wall of a frame of the hot sounding module supporting bracket that extends internally out, to support described hot sounding module.
12. thermal sounding device as claimed in claim 11 is characterized in that, a frame of described first fixed frame and the extension of flanges abut position arrange a supporting bracket, the described hot sounding module of the common support of two supporting brackets alignment of described first and second fixed frame.
13. thermal sounding device as claimed in claim 12 is characterized in that, is arranged on the bulge loop on the frame of first fixed frame to offer a breach, with ccontaining one connector that receives external signal.
14. thermal sounding device as claimed in claim 13 is characterized in that, this connector is two metal contacts, and described two metal contacts are electrically connected with this hot sounding module.
15. thermal sounding device as claimed in claim 14 is characterized in that, the position that the madial wall of this frame is corresponding with described breach offers two grooves, to cooperate with described two metal contacts.
16. thermal sounding device, it is characterized in that, this thermal sounding device comprises a hot sounding module and a fixed frame, described fixed frame should hot sounding module be fixed therebetween, described fixed frame comprises one first fixed frame and one second fixed frame, this first fixed frame and second fixed frame cooperate the back to form an accommodation space to accommodate described hot sounding module, this hot sounding module comprises a dielectric moldings, described dielectric moldings comprises 2 first plate bodys that are oppositely arranged at least, described at least one first electrode and at least one second electrode are arranged between described 2 first plate bodys, and a hot sounding film is laid and is electrically connected on described at least one first electrode and at least one second electrode.
17. thermal sounding device as claimed in claim 16 is characterized in that, the both sides of described hot sounding module arrange the two latticed protective devices that keep at a certain distance away with described hot sounding film.
18. thermal sounding device, it is characterized in that, this thermal sounding device comprises a hot sounding module and an insulation fixed frame, described fixed frame should hot sounding module around fixing therebetween, this hot sounding module comprises a carbon nano-tube film and one first electrode and one second electrode that are electrically connected with described carbon nano-tube film, described fixed frame comprise an inner side edge towards this carbon nano-tube film and with the opposing outer side edges of inner side edge, this first electrode and second electrode comprise that respectively one electrically contacts the outer side edges that end is exposed to this fixed frame.
19. thermal sounding device, it is characterized in that, this thermal sounding device comprises a hot sounding module and an insulation fixed frame, described fixed frame should hot sounding module around fixing therebetween, this hot sounding module comprises a carbon nano-tube film and one first electrode and one second electrode that are electrically connected with described carbon nano-tube film, described fixed frame comprises an inner side edge towards a side of this carbon nano-tube film and and approximate vertical adjacent with inner side edge, and this first electrode and second electrode comprise that respectively one electrically contacts the side that end is exposed to and the approximate vertical adjacent with inner side edge of this fixed frame.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810191736 CN101771918B (en) | 2008-12-30 | 2008-12-30 | Thermal sounding device |
| US12/655,398 US8325947B2 (en) | 2008-12-30 | 2009-12-30 | Thermoacoustic device |
| US12/661,106 US8315414B2 (en) | 2008-12-30 | 2010-03-11 | Thermoacoustic device |
| US12/661,132 US8311244B2 (en) | 2008-12-30 | 2010-03-11 | Thermoacoustic device |
| US12/661,109 US8300856B2 (en) | 2008-12-30 | 2010-03-11 | Thermoacoustic device |
| US12/661,149 US8345896B2 (en) | 2008-12-30 | 2010-03-11 | Thermoacoustic device |
| US12/661,148 US8315415B2 (en) | 2008-12-30 | 2010-03-11 | Speaker |
| US12/661,108 US8306246B2 (en) | 2008-12-30 | 2010-03-11 | Thermoacoustic device |
| US12/661,925 US8238586B2 (en) | 2008-12-30 | 2010-03-25 | Thermoacoustic device |
| US12/756,872 US8325949B2 (en) | 2008-12-30 | 2010-04-08 | Thermoacoustic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810191736 CN101771918B (en) | 2008-12-30 | 2008-12-30 | Thermal sounding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101771918A CN101771918A (en) | 2010-07-07 |
| CN101771918B true CN101771918B (en) | 2013-08-21 |
Family
ID=42504453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810191736 Active CN101771918B (en) | 2008-12-30 | 2008-12-30 | Thermal sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101771918B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8300855B2 (en) * | 2008-12-30 | 2012-10-30 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443021A (en) * | 2002-03-01 | 2003-09-17 | 阿尔卑斯电气株式会社 | Audio equipment |
| CN101031162A (en) * | 1998-01-16 | 2007-09-05 | 索尼公司 | Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein |
-
2008
- 2008-12-30 CN CN 200810191736 patent/CN101771918B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031162A (en) * | 1998-01-16 | 2007-09-05 | 索尼公司 | Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein |
| CN1443021A (en) * | 2002-03-01 | 2003-09-17 | 阿尔卑斯电气株式会社 | Audio equipment |
Non-Patent Citations (2)
| Title |
|---|
| Flexible,Stretchable,Transparent Carbon Nanotube Thin Film Loudspeakers;Lin Xiao,Et al.;《Nano Letters》;20081029;第8卷(第12期);第4539页 * |
| LinXiao Et al..Flexible |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101771918A (en) | 2010-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109803215B (en) | Acoustic device and electronic apparatus | |
| EP1952664B1 (en) | Flat panel display module having speaker function | |
| US9363607B2 (en) | Plane-type speaker and AV apparatus | |
| TWI359618B (en) | Loudspeakers | |
| US20120099746A1 (en) | Piezoelectric acoustic transducer | |
| TW580841B (en) | Loudspeaker, module using the same and electronic apparatus using the same | |
| CN103477656B (en) | Loudspeaker | |
| US9949036B2 (en) | Electronic device | |
| US9774956B2 (en) | Speaker | |
| KR20210103528A (en) | Acoustics and electronics | |
| TW201528825A (en) | Apparatus for generating sound | |
| CN101771918B (en) | Thermal sounding device | |
| EP1173043A2 (en) | Piezoelectric speaker | |
| CN109743662B (en) | Centering support piece and sound production device | |
| KR20190070749A (en) | Electronic apparatus | |
| RU2001123680A (en) | MIXED ELECTROLYTIC SPEAKER MODULE | |
| CN101771914B (en) | Sounding module and sounding device using same | |
| US20150003646A1 (en) | Acoustic generator, acoustic generation device, and electronic device | |
| US10375461B2 (en) | Mounting assembly for use in mobile terminal and mobile terminal using the same | |
| TWI328402B (en) | Sound broadcasting mechanism and electric device using the same | |
| JP5545091B2 (en) | Electrostatic speaker | |
| US9338558B2 (en) | Acoustic generator, acoustic generation device, and electronic device | |
| CN113767646A (en) | Audio reproducing apparatus and audio device | |
| EP3994871B1 (en) | Display stack for electronic device | |
| CN105981402A (en) | Headphones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |