CN101854577B - Thermo-acoustic device - Google Patents
Thermo-acoustic device Download PDFInfo
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- CN101854577B CN101854577B CN200910106493.6A CN200910106493A CN101854577B CN 101854577 B CN101854577 B CN 101854577B CN 200910106493 A CN200910106493 A CN 200910106493A CN 101854577 B CN101854577 B CN 101854577B
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Abstract
The present invention relates to a kind of thermo-acoustic device, it comprises a thermophone element, and described thermophone element is laid and is electrically connected at least one first electrode and at least one second electrode.One heat reflection element spacing is arranged on the side of described thermophone element, and the thermal emissivity of this heat reflection element is greater than 30 percent to infrared light reflectance.Thermo-acoustic device provided by the invention, a heat reflection element is provided with in the side of described thermophone element, make the thermal radiation directional transmissions of this thermophone element, can make to be arranged on the thermal radiation that element that this heat reflection element deviates from the side of this thermophone element suffers and reduce.
Description
Technical field
The present invention relates to a kind of thermo-acoustic device, particularly relate to a kind of thermo-acoustic device of tool heat reflection element.
Background technology
Sound-producing device comprises the sounding component of a generation sound wave, and this sound-producing device sends sound wave receiving sounding component described in an external signal rear drive.Existing sounding component, as electrodynamic type, electrostatic and piezoelectric type, mostly adopt diaphragm oscillations to sound, vibration of membrane of shaking then needs a drive unit, and therefore existing sound-producing device structure is comparatively complicated.
The people such as Fan Shoushan disclose a kind of thermo-acoustic device on October 29th, 2008, and this thermo-acoustic device adopts a thermophone element.Refer to document " Flexible, Stretchable, TransparentCarbonNanotubeThinFilmLoudspeakers ", Fanetal., NanoLetters, Vol.8 (12), 4539-4545 (2008).This thermophone element utilizes hot sound principle, and employing has made by the carbon nano tube structure of very big specific area and minimum unit are thermal capacitance.There is heat exchange rapidly with surrounding medium after receiving an external signal by least two electrodes in this carbon nano tube structure, thus change surrounding medium density and send sound wave, and this sound intensity of wave and audible frequency all people's ear energy perception scope.
But this thermophone element is with the process of surrounding medium molecule generation heat exchange, and the thermal radiation produced can be launched to all directions.Therefore, in the thermo-acoustic device comprising this thermophone element, other element near described thermophone element may be subject to described thermal-radiating impact and temperature rises so high.
Summary of the invention
In view of this, be necessary to provide a kind of thermo-acoustic device making the thermal radiation directional transmissions of hot sounding component.
A kind of thermo-acoustic device, it comprises a thermophone element, at least one first electrode and at least one second electrode, and this first electrode and the second electrode are electrically connected with described thermophone element.Described thermo-acoustic device also comprises the side that a heat reflection element spacing is arranged on described thermophone element further.This heat reflection element is greater than 30 percent to infrared light reflectance.
A kind of thermo-acoustic device, it comprises multiple first electrode and multiple second electrode runs parallel and is arranged alternately.One thermic sounding film is laid and is electrically connected on described multiple first electrode and multiple second electrode forms a loop configuration.Described thermo-acoustic device also comprises a heat reflection element, and described heat reflection element is arranged in the annular space that described thermic sounding film surrounds.Described heat reflection element has a heat reflection outwardly towards described thermic sounding film, the heat reflection surface of this heat reflection element 30 percent is greater than to infrared light reflectance.
A kind of thermo-acoustic device, it comprises a thermic sound-emitting membrane, one first electrode and one second electrode, and this first electrode and the second electrode are electrically connected with described thermophone element.Described thermo-acoustic device also comprises the element that has heat reflection surface further, and the heat reflection surface of this element is arranged on the side of described thermic sound-emitting membrane.This heat reflection surface towards this thermic sound-emitting membrane and it is greater than 30 percent to infrared light reflectance.
Compared with prior art, described thermo-acoustic device is provided with a heat reflection element in the side of described thermophone element.The thermal radiation reflection described thermophone element being launched by this heat reflection element to this side, make the thermal radiation directional transmissions of this hot sounding component, can make to be arranged on the thermal radiation that element that this heat reflection element deviates from the side of this thermophone element suffers and reduce.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention sound-producing device.
Fig. 2 is the stereoscan photograph of first embodiment of the invention as the carbon nano-tube film of sounding component.
Fig. 3 is the structural representation of second embodiment of the invention sound-producing device.
Fig. 4 is the structural representation of third embodiment of the invention sound-producing device.
Fig. 5 is the vertical view of fourth embodiment of the invention sound-producing device.
Fig. 6 is the cutaway view of Fig. 5 along VI-VI direction.
Fig. 7 is the schematic perspective view of fifth embodiment of the invention sound-producing device.
Fig. 8 is the cutaway view of Fig. 7 along VIII-VIII direction.
Embodiment
The sound-producing device of the embodiment of the present invention is described in detail below with reference to accompanying drawing.
Refer to Fig. 1, first embodiment of the invention provides a thermo-acoustic device 100, and it comprises one first electrode 110, one second electrode 120, is electrically connected on thermophone element 130 and a heat reflection element 140 of described first electrode 110 and the second electrode 120.Described thermophone element 130 is fixed on described heat reflection element 140 by the first electrode 110 and the second electrode 120 and separated by a distance with described heat reflection element 140.Described first electrode 110 and the second electrode 120 are connected with insulating between heat reflection element 140.
Concrete structure and the form of described first electrode 110 and the second electrode 120 are not limit, and it is separately positioned on the relative two ends of described thermophone element 130 in order to fixing described thermophone element 130.This first electrode 110 and the second electrode 120 for the external signal received being passed to described thermophone element 130 and driving described thermophone element 130 to generate heat, thus change the density of described thermophone element 130 surrounding medium and send sound wave.Described first electrode 110 and the second electrode 120 are attached on heat reflection element 140 by insulating cement (not shown) and realize insulation connection.Described sound-producing device 100 also can comprise multiple first electrode 110 and multiple second electrode 120 further, now, described first electrode 110 and the second electrode 120 replace insulation and are fixed on described heat reflection element 140, and multiple first electrode 110 is electrically connected to each other, multiple second electrode 120 is electrically connected to each other.
Described thermophone element 130 comprises at least one carbon nano-tube film be laid on described first electrode 110 and the second electrode 120, and this carbon nano-tube film comprises multiple almost parallel carbon nano-tube and is arranged of preferred orient in the same direction.Preferably, described carbon nano-tube film comprises multiple almost parallel carbon nano-tube and axially extends to this second electrode 120 direction from this first electrode 110 along it.Refer to Fig. 2, described carbon nano-tube film is directly pulled from a carbon nano pipe array by employing one stretching tool and obtains, and the most carbon nano-tube in described carbon nano-tube film are joined end to end by Van der Waals force.Structure of described carbon nano-tube film and preparation method thereof refers to the people such as Fan Shoushan and to apply on February 9th, 2007, CN101239712A continent publication application disclosed in 13 days Augusts in 2008.For saving space, be only incorporated in this, but all technology of above-mentioned application disclose the part that also should be considered as the present patent application technology and disclose.This thermophone element 130 can comprise the multilayer carbon nanotube film of stacked setting, when the number of plies of the carbon nano-tube film that this thermophone element 130 comprises is less, this thermophone element 130 has good light transmittance, and its light transmittance can reach 67% ~ 95%.
After described carbon nano-tube film receives external signal, this external signal is converted to corresponding heat energy by this carbon nano-tube film, and rapidly and surrounding medium produce heat exchange, ambient density is changed.When described external signal is ac signal or the audio electrical signal after ovennodulation of mechanical periodicity, the heat energy that described carbon nano-tube film produces also can synchronously convert, make the density of described carbon nano-tube film surrounding medium produce synchronous change, thus send sound wave.
Certainly, described thermophone element 130 is not limited to carbon nano-tube film, and it can also can utilize the thermophone element of hot sound principle sounding for other.This thermophone element 130 has larger specific area and less thermal capacitance, and usually, the unit are thermal capacitance of described thermophone element 130 is less than 2 × 10
-4joules per cm Kelvin.Preferably, described thermophone element 130 is the carbon nano tube structure formed by multiple carbon nano-tube, and the unit are thermal capacitance of this carbon nano tube structure is less than 1.7 × 10
-6joules per cm Kelvin.Described carbon nano tube structure, except above-mentioned carbon nano-tube film, can also comprise liner structure of carbon nano tube.
Described liner structure of carbon nano tube comprises at least one carbon nano tube line, and described carbon nano tube line comprises multiple carbon nano-tube extending along this carbon nano tube line axial direction or rotate.Described liner structure of carbon nano tube can, for the fascicular texture be made up of side by side multiple carbon nano tube line, also can be the twisted wire structure mutually reversing composition.In addition, described carbon nano tube structure can be arranged in parallel by described liner structure of carbon nano tube, is mutually wound around or mutually weaves and form.Preferably, described carbon nano tube line is by carrying out mechanical force torsion or organic solvent process and obtaining to an organized carbon nano periosteum.The carbon nano tube line of the described non-twisted obtained by organic solvent process comprises multiple along the arrangement of carbon nano tube line length direction and end to end carbon nano-tube.Described carbon nano tube line obtained by organic solvent process and preparation method thereof is referred to the people such as Fan Shoushan and applies on December 16th, 2005, CN1982209A continent publication application disclosed in the 20 days June in 2007.For saving space, be only incorporated in this, but all technology of above-mentioned application disclose the part that also should be considered as the present patent application technology and disclose.
Described heat reflection element 140 surface is without hole, and its heat reflection angle of radiation is less than 180 degree, preferably, and described heat reflection element 140 and this thermophone element 130 interval and be arranged in parallel.Preferably, the distance between described heat reflection element 140 and this thermophone element 130 is greater than 100 microns, in order to avoid cause sound interference.In the present embodiment, described heat reflection element 140 is for being parallel to the heat reflection plate of described thermophone element 130, and this thermophone element 130 drops within the scope of this heat reflection plate in the projection of described heat reflection plate, thus increase the available heat reflective surface area of this heat reflection plate.The material preparing described heat reflection plate comprises white metal, metallic compound, alloy or composite material.As chromium, titanium, zinc, aluminium, gold, silver, alumin(i)um zinc alloy or comprise salic coating.Described thermophone element 130 can also scribble a substrate of heat-reflecting material for surface or have the substrate of a heat-reflecting surface.The heat reflectivity of the material of described heat reflection plate is greater than 30 percent, and the thermal radiation reflectivity as zinc is 38 percent, and alumin(i)um zinc alloy then can reach 75 percent.Described thermo-acoustic device 100 can also comprise the multiple supporters be disposed between described first electrode 110 and the second electrode 120, and this supporter one end is fixed on described heat reflection element 140, and the other end is in order to support described thermophone element 130.
By arranging a heat reflection element 140 in the side of described thermophone element 130, make the thermal radiation reflection that described thermophone element 130 is being launched to this side, described thermo-acoustic device 100 can be made to be reduced by the thermal radiation partially absorbed that heat reflection element 140 blocks, thus make the thermal radiation directional transmissions of described thermophone element 130, expand its range of application.In addition, this heat reflection element 140 can also realize sound reflecting effect, can strengthen the sounding effect of described thermo-acoustic device 100 further.
Refer to Fig. 3, second embodiment of the invention provides a thermo-acoustic device 200, and it comprises one first electrode 210, one second electrode 220, be electrically connected on thermophone element 230, heat reflection element 240 and a support component 250 of described first electrode 210 and the second electrode 220.Described thermophone element 230 is fixed on described support component 250 by the first electrode 210 and the second electrode 220 and separated by a distance with described support component 250.Described heat reflection element 240 to be arranged between this thermophone element 230 and support component 250 and separated by a distance with described thermophone element 230.
Thermo-acoustic device 200 in the embodiment of the present invention is substantially identical with the structure & working mechanism of the thermo-acoustic device 100 in the first embodiment, its main distinction is, described thermo-acoustic device 200 also comprises a support component 250, for fixing described thermophone element 230, first electrode 210 and the second electrode 220.Described support component 250 is a flat panel substrate, it has the loading end 251 towards described thermophone element 230, this loading end 251 is parallel with described thermophone element 230 and in a distance, certainly, described support component 250 can also have for other are any the curved-surface structure or stereochemical structure of determining shape.Described heat reflection element 240 to be arranged between loading end 251 and thermophone element 230 and and this thermophone element 230 interval arrange, in the present embodiment, described heat reflection element 240 is for being formed in the thermal reflecting coating on described loading end 251, and the area of this thermal reflecting coating is less than the area of described thermophone element 230, thus avoid this thermal reflecting coating to contact with described first electrode 210 and the second electrode 220 causing short circuit.
By arranging a heat reflection element 240 in the side of described thermophone element 230, the thermal radiation reflection that described thermophone element 230 is launched to this side, described thermo-acoustic device 200 can be made to be reduced by the thermal radiation partially absorbed that heat reflection element 240 blocks, thus reduce the working temperature being arranged on the element of this side, thus extend the working life of described thermo-acoustic device 200.Be appreciated that and the element of non-refractory can be arranged on this side.In the present embodiment, can reduce by this heat reflection element 240 thermal radiation that described support component 250 absorbs, thus reduce the working temperature of described support component 250, extend the working life of this support component 250.Be appreciated that described heat reflection element 240 can be fixed by support component 250 and other devices or be assembled, and do not affect other device work.In addition, this heat reflection element 240 also has good sound reflecting effect, can strengthen the sounding effect of described thermo-acoustic device 200 further.
Refer to Fig. 4, third embodiment of the invention provides a thermo-acoustic device 300, and it comprises one first electrode 310, one second electrode 320, be electrically connected on thermophone element 330, heat reflection element 340 and a support component 350 of described first electrode 310 and the second electrode 320.Described thermophone element 330 is fixed on described support component 350, and described heat reflection element 340 to be arranged between described thermophone element 330 and support component 350 and separated by a distance with described thermophone element 330.
Thermo-acoustic device 300 in the embodiment of the present invention is substantially identical with the structure & working mechanism of the thermo-acoustic device 200 in the second embodiment, its main distinction is, described support component 350 is a V-structure, described thermophone element 330 is can self supporting structure, this thermophone element 330 is fixed on two ends of described V-structure by modes such as viscoses, and described first electrode 310 and the second electrode 320 are arranged on the side of described thermophone element 330 described V-structure dorsad.Described heat reflection element 340 is a thermal reflecting coating, and this thermal reflecting coating is arranged on the surface of described V-structure towards this thermophone element 330.And the area of this thermal reflecting coating is less than the area of described thermophone element 330, thus avoid this thermal reflecting coating to contact with described first electrode 310 and the second electrode 320 causing short circuit.
Refer to Fig. 5 and Fig. 6, fourth embodiment of the invention provides a thermo-acoustic device 400, and it comprises one first electrode 410, one second electrode 420, be electrically connected on thermophone element 430, heat reflection element 440 and a support component 450 of described first electrode 410 and the second electrode 420.Described thermophone element 430 is fixed on described support component 450 by described first electrode 410 and the second electrode 420, described heat reflection element 440 to be arranged on this support component 450 and and described thermophone element 430 interval arrange.
Thermo-acoustic device 400 in the embodiment of the present invention is substantially identical with the structure & working mechanism of the sound-producing device 200 in the second embodiment, and its main distinction is, described support component 450 is for having the cavity of an opening.Described thermophone element 430 is fixed on the end of described cavity near described opening by described first electrode 410 and the second electrode 420.And described heat reflection element 440 is arranged on the inner surface of described cavity, and face described opening.The area of described thermophone element 430 equals the area of described opening and is greater than the area of described heat reflection element 440, to reduce the thermal radiation that this cavity absorbs to a greater degree.Described heat reflection element 440 also can be a reflecting plate being contained in support component 450, and this reflecting plate is parallel to described opening or thermophone element 430, thus by the reflect heat of launching to reflecting plate to outside cavity, reduces the working temperature of cavity.
Described thermophone element 430 operationally, the part thermal radiation of launching in this cavity is reflected toward opening direction by described heat reflection element 430, thus make this part thermal radiation be dispersed into outside this support component 450, reduce the working temperature of described support component 450, especially reduce the working temperature of this support component 450 in the opposing side of heat reflection element 440 and thermophone element 430.
Refer to Fig. 7 and Fig. 8, fifth embodiment of the invention provides a kind of sound-producing device 500, and it comprises the first electrode 510, second electrode 520, be electrically connected on thermophone element 530, support component 550 and a heat reflection element 540 of described first electrode 510 and the second electrode 520.Described heat reflection element 540 is fixed on described support component 550 by the first electrode 510 and the second electrode 520.Described heat reflection element 540 is arranged on the inner side of this thermophone element 530.
Thermo-acoustic device 500 in the embodiment of the present invention is substantially identical with the structure & working mechanism of the sound-producing device 200 in the second embodiment, its main distinction is, described thermophone element 530 forms a loop configuration by these two the first electrodes 510 and two the second electrodes 520.It should be pointed out that described annular be not only confined to circle, oval, square, rectangle, or the annular of the shape such as other polygon, even, other similar annulars, as C shape, U-shaped etc. also should be considered as within the scope that the claims in the present invention protect.Particularly, this first electrode 510 and the second electrode 520 are the parallel and strip electrode be arranged alternately in space, connect between multiple first electrode 510, connect between many second electrodes 520.Described thermophone element 530 is a carbon nano-tube film, this carbon nano-tube film is arranged around this first electrode 510 and the second electrode 520, this heat reflection element 540 is arranged at this carbon nano-tube film around in surrounded space, and described support component 550 to be arranged in described annular space and to be fixed by many fixed arms 551 with described first electrode 510 and the second electrode 520.Preferably, the outer surface of described support component 550 is parallel with described carbon nano-tube film, and this fixed arm 551 is made by insulating material.Described heat reflection element 540 is arranged on the outer surface of described support component 550 and separated by a distance with described carbon nano-tube film, and in the present embodiment, described heat reflection element 540 is for being formed in the metal level of described support component 550 outer surface.
Be appreciated that in the present embodiment, carbon nano-tube film is supported by this first electrode 510 and the second electrode 520.This carbon nano-tube film also can by and the multiple support body supports that are disposed on described first electrode 510 and second electrode 520 between similar to this first electrode 510 and the second electrode 520 shape, and this supporter is fixedly connected with support component 550.
The connected mode of described first electrode 510 and the second electrode 520 can realize the parallel connection of the carbon nano-tube film between adjacent electrode, and the carbon nano-tube film after parallel connection has less resistance, can reduce operating voltage.In addition, when the area of described thermophone element 530 is larger, multiple electrode also can play the effect supporting described thermophone element 530 further.And described annular thermophone element 530 has larger swept area, and intensity of phonation is enhanced, and can realize around sounding effect.Described support component 550 inside can also arrange the related elements of easy heat damage, and this element is protected.
Described thermo-acoustic device is provided with a heat reflection element in the side of thermophone element.The thermal radiation reflection described thermophone element being launched by this heat reflection element to this side, make the thermal radiation directional transmissions of this hot sounding component, can make to be arranged on the thermal radiation that element that this heat reflection element deviates from the side of this thermophone element absorbs to reduce, reduce the working temperature of this element, thus extend the range of application of this thermo-acoustic device, extend the working life of described thermo-acoustic device.
In addition, those skilled in the art also can do other changes in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (16)
1. a thermo-acoustic device, it comprises a thermophone element, at least one first electrode and at least one second electrode, this first electrode and the second electrode are electrically connected with described thermophone element, it is characterized in that, described thermo-acoustic device also comprises the side that a heat reflection element spacing is arranged on described thermophone element further, this heat reflection element is greater than 30 percent to infrared light reflectance, and described thermophone element and heat reflection element two surfaces respect to one another are the plane that is parallel to each other or folding face.
2. thermo-acoustic device as claimed in claim 1, it is characterized in that, the unit are thermal capacitance of described thermophone element is less than 2 × 10
-4joules per cm Kelvin.
3. thermo-acoustic device as claimed in claim 2, it is characterized in that, described thermophone element is a carbon nano tube structure, and this carbon nano tube structure at least comprises the combining structure that a carbon nano-tube film, a liner structure of carbon nano tube and a carbon nano-tube film and a liner structure of carbon nano tube are formed.
4. thermo-acoustic device as claimed in claim 3, it is characterized in that, described carbon nano-tube film comprises multiple almost parallel carbon nano-tube, and adjacent carbon nano-tube is combined by Van der Waals force.
5. thermo-acoustic device as claimed in claim 1, it is characterized in that, the surface relative with thermophone element of described heat reflection element is heat-reflecting surface, and the projection of this thermophone element on described heat-reflecting surface is less than or equal to the area of this heat-reflecting surface.
6. thermo-acoustic device as claimed in claim 1, it is characterized in that, described heat reflection element is arranged on a support component, and described thermophone element is fixed on described support component by the first electrode and the second electrode.
7. thermo-acoustic device as claimed in claim 6, it is characterized in that, described support component is a substrate, and this substrate is positioned at the side of described heat reflection element back to this thermophone element, and the projection on the substrate of this thermophone element drops within the scope of this substrate.
8. thermo-acoustic device as claimed in claim 6, it is characterized in that, described support component is the cavity with an opening, described thermophone element is arranged on the end of this cavity near described opening, and the area of this thermophone element is less than the area of described opening, the area of described heat reflection element is greater than the area of this thermophone element.
9. thermo-acoustic device as claimed in claim 1, it is characterized in that, the projected area of described heat reflection element in thermophone element is less than the area of described plane.
10. thermo-acoustic device as claimed in claim 4, it is characterized in that, described thermophone element and heat reflection element two surfaces respect to one another are two anchor rings, and described heat reflection element is arranged on the inner side of this thermophone element.
11. thermo-acoustic devices as claimed in claim 1, it is characterized in that, the material of described heat reflection element comprises white metal, metallic compound, alloy or composite material.
12. thermo-acoustic devices as claimed in claim 11, it is characterized in that, described metal comprises chromium, titanium, zinc, aluminium, gold or silver-colored, and described alloy comprises alumin(i)um zinc alloy, and described composite material comprises salic coating.
13. 1 kinds of thermo-acoustic devices, it comprises a thermophone element, one first electrode and one second electrode, this first electrode and the second electrode are electrically connected with described thermophone element, it is characterized in that, described thermo-acoustic device also comprises the element that has heat reflection surface further, the heat reflection surface of this element is arranged on the side of described thermophone element, this heat reflection surface is towards this thermophone element and it is greater than 30 percent to infrared light reflectance, described thermophone element and heat reflection surface are at least partly the plane that is parallel to each other respect to one another or folding face.
14. thermo-acoustic devices as claimed in claim 13, is characterized in that, the area on the heat reflection surface of this element is greater than the area of described thermophone element.
15. thermo-acoustic devices as claimed in claim 13, it is characterized in that, the heat reflection angle of radiation on the heat reflection surface of this element is less than 180 degree.
16. thermo-acoustic devices as claimed in claim 13, is characterized in that, the heat reflection surface of this element is not containing hole.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106493.6A CN101854577B (en) | 2009-03-31 | 2009-03-31 | Thermo-acoustic device |
| US12/655,502 US8270639B2 (en) | 2008-04-28 | 2009-12-31 | Thermoacoustic device |
| JP2010062274A JP5385184B2 (en) | 2009-03-31 | 2010-03-18 | Thermoacoustic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910106493.6A CN101854577B (en) | 2009-03-31 | 2009-03-31 | Thermo-acoustic device |
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| CN101854577A CN101854577A (en) | 2010-10-06 |
| CN101854577B true CN101854577B (en) | 2015-11-25 |
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| CN200910106493.6A Active CN101854577B (en) | 2008-04-28 | 2009-03-31 | Thermo-acoustic device |
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| CN (1) | CN101854577B (en) |
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| KR101699796B1 (en) * | 2015-09-21 | 2017-01-26 | 한국과학기술원 | Two dimensional thermoacoustic speaker using three dimensional graphene and manufacturing method the same |
| CN106568498A (en) * | 2016-10-11 | 2017-04-19 | 芜湖欧宝机电有限公司 | Detection mechanism and detection method for identifying collision of compressor body |
| CN108736964B (en) * | 2017-04-20 | 2020-08-11 | 清华大学 | Terahertz wave communication device |
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| US5694477A (en) * | 1995-12-08 | 1997-12-02 | Kole; Stephen G. | Photothermal acoustic device |
| CN1821048A (en) * | 2005-02-18 | 2006-08-23 | 中国科学院理化技术研究所 | Micronl nano thermoacoustic vibration excitor based on thermoacoustic conversion |
| CN1982209A (en) * | 2005-12-16 | 2007-06-20 | 清华大学 | Carbon nano-tube filament and its production |
| CN101239712A (en) * | 2007-02-09 | 2008-08-13 | 清华大学 | Carbon nano-tube thin film structure and preparation method thereof |
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| JPS5819491U (en) * | 1981-07-29 | 1983-02-05 | 東芝熱器具株式会社 | heating element unit |
| JPH0820868A (en) * | 1994-07-06 | 1996-01-23 | Noboru Naruo | Vacuum soaking heater |
| JP2002352940A (en) * | 2001-05-25 | 2002-12-06 | Misawa Shokai:Kk | Surface heater |
| JP2003332266A (en) * | 2002-05-13 | 2003-11-21 | Kansai Tlo Kk | Wiring method for nanotube and control circuit for nanotube wiring |
| KR100584671B1 (en) * | 2004-01-14 | 2006-05-30 | (주)케이에이치 케미컬 | Process for the preparation of carbon nanotube or carbon nanofiber electrodes by using sulfur or metal nanoparticle as a binder and electrode prepared thereby |
| JP2005235672A (en) * | 2004-02-23 | 2005-09-02 | Sumitomo Electric Ind Ltd | Heater unit and apparatus carrying the same |
| JP4400889B2 (en) * | 2006-04-03 | 2010-01-20 | 京セラ株式会社 | Material converter storage container and material conversion device |
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| US5694477A (en) * | 1995-12-08 | 1997-12-02 | Kole; Stephen G. | Photothermal acoustic device |
| CN1821048A (en) * | 2005-02-18 | 2006-08-23 | 中国科学院理化技术研究所 | Micronl nano thermoacoustic vibration excitor based on thermoacoustic conversion |
| CN1982209A (en) * | 2005-12-16 | 2007-06-20 | 清华大学 | Carbon nano-tube filament and its production |
| CN101239712A (en) * | 2007-02-09 | 2008-08-13 | 清华大学 | Carbon nano-tube thin film structure and preparation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101854577A (en) | 2010-10-06 |
| JP2010246099A (en) | 2010-10-28 |
| JP5385184B2 (en) | 2014-01-08 |
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