CN101636008A - Plane heat source - Google Patents

Plane heat source Download PDF

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Publication number
CN101636008A
CN101636008A CN200810142615A CN200810142615A CN101636008A CN 101636008 A CN101636008 A CN 101636008A CN 200810142615 A CN200810142615 A CN 200810142615A CN 200810142615 A CN200810142615 A CN 200810142615A CN 101636008 A CN101636008 A CN 101636008A
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CN
China
Prior art keywords
heat source
plane heat
heating
zone
carbon nanotube
Prior art date
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Granted
Application number
CN200810142615A
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Chinese (zh)
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CN101636008B (en
Inventor
刘长洪
王鼎
范守善
姜开利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsinghua University
Hongfujin Precision Industry Shenzhen Co Ltd
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Tsinghua University
Hongfujin Precision Industry Shenzhen Co Ltd
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Application filed by Tsinghua University, Hongfujin Precision Industry Shenzhen Co Ltd filed Critical Tsinghua University
Priority to CN200810142615A priority Critical patent/CN101636008B/en
Priority to EP08253151A priority patent/EP2043406B1/en
Priority to KR1020080094915A priority patent/KR20090033138A/en
Priority to ES08253151T priority patent/ES2386584T3/en
Priority to US12/456,071 priority patent/US20100126985A1/en
Priority to US12/460,855 priority patent/US20100000987A1/en
Priority to US12/460,850 priority patent/US20100140257A1/en
Priority to US12/460,848 priority patent/US20100000985A1/en
Priority to US12/460,849 priority patent/US20100000986A1/en
Priority to US12/460,817 priority patent/US20100108664A1/en
Priority to US12/460,868 priority patent/US20090321421A1/en
Priority to US12/460,867 priority patent/US20090314765A1/en
Priority to US12/460,859 priority patent/US20100000989A1/en
Priority to US12/460,871 priority patent/US20100230400A1/en
Priority to US12/460,853 priority patent/US20090321419A1/en
Priority to US12/460,854 priority patent/US20090321420A1/en
Priority to US12/460,851 priority patent/US20090321418A1/en
Priority to US12/460,858 priority patent/US20100000988A1/en
Priority to US12/460,869 priority patent/US20100139845A1/en
Priority to US12/460,870 priority patent/US20100000990A1/en
Priority to US12/460,852 priority patent/US20100140258A1/en
Priority to JP2009173469A priority patent/JP5390288B2/en
Priority to US12/462,155 priority patent/US20100140259A1/en
Priority to US12/462,188 priority patent/US20100139851A1/en
Priority to US12/462,153 priority patent/US20100000669A1/en
Priority to US12/655,507 priority patent/US20100122980A1/en
Publication of CN101636008A publication Critical patent/CN101636008A/en
Priority to US12/658,237 priority patent/US20100154975A1/en
Priority to US12/658,182 priority patent/US20100147827A1/en
Priority to US12/658,193 priority patent/US20100147829A1/en
Priority to US12/658,184 priority patent/US20100147828A1/en
Priority to US12/658,198 priority patent/US20100147830A1/en
Priority to US12/660,356 priority patent/US20110024410A1/en
Priority to US12/660,820 priority patent/US20100163547A1/en
Priority to US12/661,165 priority patent/US20100170891A1/en
Priority to US12/661,133 priority patent/US20100200568A1/en
Priority to US12/661,115 priority patent/US20100200567A1/en
Priority to US12/661,110 priority patent/US20100218367A1/en
Priority to US12/661,150 priority patent/US20100170890A1/en
Priority to US12/661,926 priority patent/US20100187221A1/en
Priority to US12/750,186 priority patent/US20100180429A1/en
Application granted granted Critical
Publication of CN101636008B publication Critical patent/CN101636008B/en
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/007—Heaters using a particular layout for the resistive material or resistive elements using multiple electrically connected resistive elements or resistive zones
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/032—Heaters specially adapted for heating by radiation heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/04—Heating means manufactured by using nanotechnology

Abstract

A plane heat source comprises a substrate, a heating layer and at least two electrodes, wherein, the heating layer is arranged on the substrate; the two electrodes are arranged at intervals and are electrically connected with the heating layer respectively; the heating layer comprises a carbon nano tube layer which comprises a plurality of isotropic carbon nano tubes preferentially arrayed along the fixed or different orientation.

Description

Plane heat source
Technical field
The present invention relates to a kind of plane heat source, relate in particular to a kind of plane heat source based on carbon nano-tube.
Background technology
Thermal source plays an important role in people's production, life, scientific research.Plane heat source is a kind of of thermal source, its characteristics are that plane heat source has a planar structure, place the top of this planar structure that object is heated heated material, therefore, plane heat source can heat simultaneously to each position of heated material, and it is higher to heat wide, homogeneous heating and efficient.Plane heat source successfully is used for industrial circle, scientific research field or sphere of life etc., as electric heater, infrared therapeutic apparatus, electric heater etc.
Existing plane heat source generally comprises a zone of heating and at least two electrodes, and these at least two electrodes are arranged at the surface of this zone of heating, and is connected with the surface electrical of this zone of heating.When the electrode on connecting zone of heating fed low-voltage current, heat discharged from zone of heating at once.Now commercially available plane heat source adopts metal heating wire to carry out the electric heating conversion as zone of heating usually.Yet the intensity of heating wire is not high to be easy to fracture, particularly crooked or when being converted into certain angle, therefore uses to be restricted.In addition, with the heat that metal heating wire was produced be with common wavelength to extraradial, its electric conversion efficiency is not high to be unfavorable for saving the energy.
The invention of non-metal carbon fiber electric conducting material is that the development of plane heat source has brought breakthrough.Adopt the zone of heating of carbon fiber to be used as the element of electric heating conversion to replace the metal electric heating silk at the outside insulating barrier that applies one deck waterproof of carbon fiber usually.Owing to compare with metal, carbon fiber has toughness preferably, and this has solved the not shortcoming of high frangibility of heating wire intensity to a certain extent.Yet, outwards dispel the heat owing to carbon fiber is still with common wavelength, so and the low problem of unresolved electric conversion rate.In order to address the above problem, the zone of heating of employing carbon fiber generally comprises many carbon fiber thermal source wires layings and forms.This carbon fiber thermal source wire is the conductive core line that an appearance is enclosed with chemical fibre or cotton thread.Outside dip-coating one deck water proof fire retardant insulating material of this chemical fibre or cotton thread.Described conductive core line has the cotton thread of far ultrared paint to be entwined by many carbon fibers and many surface coherings.Add the sticking cotton thread that scribbles far ultrared paint in the conductive core line, one can strengthen the intensity of heart yearn, and two can make energising back carbon lead the heat that fiber sends can be with infrared wavelength to external radiation.
Yet, adopt carbon fiber paper to have following shortcoming as zone of heating: the first, carbon fiber strength is big inadequately, breaks easily, needs to add the intensity that cotton thread improves carbon fiber, has limited its range of application; The second, the electric conversion efficiency of carbon fiber itself is lower, needs to add the sticking cotton thread that scribbles far ultrared paint and improves electric conversion efficiency, is unfavorable for energy-conserving and environment-protective; The 3rd, need make the carbon fiber thermal source wire earlier and make zone of heating again, be unfavorable for large-area manufacturing, be unfavorable for inhomogeneity requirement, simultaneously, be unfavorable for the making of miniature plane heat source.
In view of this, necessaryly provide a kind of plane heat source, this plane heat source intensity is big, and electric conversion efficiency is higher, helps saving the energy and heating evenly, and the controlled amount of plane heat source can be made into large tracts of land plane heat source or miniature plane heat source.
Summary of the invention
A kind of plane heat source, this plane heat source comprise one first electrode, one second electrode and a zone of heating.Described first electrode and second electrode gap are arranged on this zone of heating, and electrically contact with this zone of heating.This zone of heating comprises a carbon nanotube layer, and this carbon nanotube layer comprises isotropism, is orientated a plurality of carbon nano-tube of arranging according to qualifications along fixed-direction orientation or different directions.
Compared with prior art, described plane heat source has the following advantages: the first, and carbon nano-tube can be made the carbon nanotube layer of arbitrary dimension easily, both can be applied to macroscopical field and also can be applied to microscopic fields.The second, carbon nano-tube has littler density than carbon fiber, so, adopt the plane heat source of carbon nanotube layer to have lighter weight, easy to use.The 3rd, the electric conversion efficiency height of carbon nanotube layer, thermal resistivity is low, so this plane heat source has the characteristics rapid, that thermo-lag is little, rate of heat exchange is fast that heat up.The 4th, described carbon nanotube layer can directly obtain by rolling carbon nano pipe array, is easy to preparation, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of the plane heat source that provides of the technical program embodiment.
Fig. 2 is the II-II generalized section of Fig. 1.
The stereoscan photograph of the carbon nanotube layer of the carbon nano-tube that is arranged of preferred orient along different directions the technical program embodiment comprising of providing is provided Fig. 3.
The stereoscan photograph of the carbon nanotube layer of the carbon nano-tube that is arranged of preferred orient along same direction the technical program embodiment comprising of providing is provided Fig. 4.
Embodiment
Describe the technical program plane heat source in detail below with reference to accompanying drawing.
See also Fig. 1 and Fig. 2, the technical program embodiment provides a kind of plane heat source 10, and this plane heat source 10 comprises a substrate 18, a reflector 17, a zone of heating 16, one first electrode 12, one second electrode 14 and an insulating protective layer 15.Described reflector 17 is arranged at the surface of substrate 18.Described zone of heating 16 is arranged at the surface in described reflector 17.Described first electrode 12 and second electrode 14 are provided with at interval, and electrically contact with this zone of heating 16, are used for making described zone of heating 16 to flow through electric current.Described insulating protective layer 15 is arranged at the surface of described zone of heating 16, and described first electrode 12 and second electrode 14 are covered, and is used to avoid described zone of heating 16 absorption introduced contaminantses.
Described substrate 18 shapes are not limit, and it has a surface and is used to support zone of heating 16 or reflector 17.Preferably, described substrate 18 is a platy substrate, and its material can be hard material, as: pottery, glass, resin, quartz etc., can also select flexible material, as: plastics or flexible fiber etc.When being flexible material, this plane heat source 10 can be bent into arbitrary shape in use as required.Wherein, the size of substrate 18 is not limit, and can change according to actual needs.The preferred substrate 18 of present embodiment is a ceramic substrate.
The setting in described reflector 17 is used for reflecting the heat that zone of heating 16 is sent out, thereby the direction of control heating is used for the single face heating, and further improves the efficient of heating.The material in described reflector 17 is a white insulating material, as: metal oxide, slaine or pottery etc.In the present embodiment, reflector 17 is the alundum (Al layer, and its thickness is 100 microns～0.5 millimeter.This reflector 17 can be formed at this substrate 18 surfaces by sputter or additive method.Be appreciated that described reflector 17 also can be arranged on the surface of substrate 18 away from zone of heating 16, promptly described substrate 18 is arranged between described zone of heating 16 and the described reflector 17, further strengthens the effect of reflector 17 reflecting heats.Described reflector 17 is a selectable structure.Described zone of heating 16 can be set directly at the surface of substrate 18, and this moment, the heating direction of plane heat source 10 was not limit, and can be used for two-sided heating.
Described zone of heating 16 comprises a carbon nanotube layer, and this carbon nanotube layer itself has certain viscosity, and viscosity that can utilization itself is arranged at the surface of substrate 18, also can be arranged at the surface of substrate 18 by binding agent.Described binding agent is a silica gel.The length of this carbon nanotube layer, width and thickness are not limit, and can select according to actual needs.
Described carbon nanotube layer comprises equally distributed carbon nano-tube.The carbon nano-tube in this carbon nanotube layer and the surface of the carbon nanotube layer α that has angle, wherein, α is more than or equal to zero degree and smaller or equal to 15 degree (0≤α≤15 °).Preferably, the carbon nano-tube in the described carbon nanotube layer is parallel to the surface of carbon nanotube layer.This carbon nanotube layer can be by rolling carbon nano pipe array preparation, and according to the mode difference that rolls, the carbon nano-tube in this carbon nanotube layer has different spread patterns.Particularly, carbon nano-tube can isotropism be arranged; When different directions rolls, carbon nano-tube is arranged of preferred orient along different directions, sees also Fig. 3; When same direction rolls, carbon nano-tube is arranged of preferred orient along a fixed-direction, sees also Fig. 4.Carbon nano-tube in the described carbon nanotube layer partly overlaps.Attract each other by Van der Waals force between the carbon nano-tube in the described carbon nanotube layer, combine closely, make this carbon nanotube layer have good flexible, can bending fold become arbitrary shape and do not break.
Carbon nano-tube in this carbon nanotube layer comprises one or more in Single Walled Carbon Nanotube, double-walled carbon nano-tube and the multi-walled carbon nano-tubes.The diameter of described Single Walled Carbon Nanotube is 0.5 nanometer～10 nanometers, and the diameter of double-walled carbon nano-tube is 1 nanometer～15 nanometers, and the diameter of multi-walled carbon nano-tubes is 1.5 nanometers～50 nanometers.The length of this carbon nano-tube is greater than 50 microns.The length of carbon nano-tube is greater than 50 microns, and preferably, the length of carbon nano-tube is 200～900 microns.
The area and the thickness of this carbon nanotube layer are not limit, and can select according to actual needs.The area of this carbon nanotube layer is relevant with the size of the substrate that carbon nano pipe array is grown.The height of this carbon nano-tube layer thickness and carbon nano pipe array and the pressure that rolls are relevant, can be 1 micron～1 millimeter.The height that is appreciated that carbon nano pipe array is big more and applied pressure is more little, and then the thickness of Zhi Bei carbon nanotube layer is big more; Otherwise the height of carbon nano pipe array is more little and applied pressure is big more, and then the thickness of Zhi Bei carbon nanotube layer is more little.The thermal response speed that is appreciated that carbon nanotube layer is relevant with its thickness.Under situation of the same area, the thickness of carbon nanotube layer is big more, and thermal response speed is slow more; Otherwise the thickness of carbon nanotube layer is more little, and thermal response speed is fast more.
In the present embodiment, zone of heating 16 employing thickness are 100 microns carbon nanotube layer.The length of this carbon nanotube layer is 5 centimetres, and the width of carbon nanotube layer is 3 centimetres.Utilize the viscosity of carbon nanotube layer itself, this carbon nanotube layer is arranged at the surface of substrate 18.
Described first electrode 12 and second electrode 14 are made up of electric conducting material, and the shape of this first electrode 12 and second electrode 14 is not limit, and can be conductive film, sheet metal or metal lead wire.Preferably, first electrode 12 and second electrode 14 are layer of conductive film.The thickness of this conductive film is 0.5 nanometer～100 micron.The material of this conductive film can be metal, alloy, indium tin oxide (ITO), antimony tin oxide (ATO), conductive silver glue, conducting polymer or conductive carbon nanotube etc.This metal or alloy material can be the alloy of aluminium, copper, tungsten, molybdenum, gold, titanium, neodymium, palladium, caesium or its combination in any.In the present embodiment, the material of described first electrode 12 and second electrode 14 is the Metal Palladium film, and thickness is 5 nanometers.Described Metal Palladium and carbon nano-tube have wetting effect preferably, help forming good electrical contact between described first electrode 12 and second electrode 14 and the described zone of heating 16, reduce ohmic contact resistance.
Described first electrode 12 and second electrode 14 are provided with at interval, and are electrically connected with zone of heating 16 respectively, can be arranged on the same surface of zone of heating 16 also can be arranged on the different surfaces of zone of heating 16.Wherein, first electrode 12 and second electrode 14 are provided with at interval, avoid short circuit phenomenon to produce so that zone of heating 16 inserts certain resistance when being applied to plane heat source 10.Owing to good adhesiveness is arranged as the carbon nanotube layer of zone of heating 16 itself, thus first electrode 12 and second electrode 14 direct just can and carbon nanotube layer between form and well electrically contact.
In addition, described first electrode 12 and second electrode 14 also can be arranged on the surface of this zone of heating 16 by a conductive adhesive (figure does not show), conductive adhesive can also be fixed in described first electrode 12 and second electrode 14 on the surface of zone of heating 16 when realizing that first electrode 12 and second electrode 14 electrically contact with zone of heating 16 better.The preferred conductive adhesive of present embodiment is an elargol.
The structure and material that is appreciated that first electrode 12 and second electrode 14 is not all limit, and it is provided with purpose is to flow through electric current in order to make in the described zone of heating 16.Therefore, 14 needs of described first electrode 12 and second electrode conduction, and and described zone of heating 16 between form and electrically contact all in protection scope of the present invention.
But described insulating protective layer 15 is a choice structure, and its material is an insulating material, as: rubber, resin etc.Described insulating protective layer 15 thickness are not limit, and can select according to actual conditions.Described insulating protective layer 15 is covered on described first electrode 12, second electrode 14 and the zone of heating 16, and this plane heat source 10 is used under state of insulation, can also avoid the carbon nanotube adsorption introduced contaminants in the described zone of heating 16 simultaneously.In the present embodiment, the material of this insulating protective layer 15 is a rubber, and its thickness is 0.5～2 millimeter.
The plane heat source 10 of the technical program embodiment in use, can be earlier with first electrode 12 of plane heat source 10 with insert power supply after second electrode 14 is connected lead.Carbon nanotube layer after inserting power supply in the thermal source 10 can give off the electromagnetic wave of certain wave-length coverage.Described plane heat source 10 can directly contact with the surface of heated material.Perhaps, owing to have excellent conducting performance as the carbon nano-tube in the carbon nanotube layer of zone of heating 16 in the present embodiment, and itself has had certain self-supporting and stability this carbon nanotube layer, and described plane heat source 10 can at intervals be provided with heated material.
Plane heat source 10 among the technical program embodiment can give off the electromagnetic wave of different wavelength range by regulating the thickness of supply voltage size and zone of heating 16 in area size one timing of carbon nanotube layer.Size one timing of supply voltage, it is opposite that the thickness of zone of heating 16 and plane heat source 10 spokes go out electromagnetic wavelength change trend.Promptly when one timing of supply voltage size, the thickness of zone of heating 16 is thick more, and it is short more that plane heat source 10 spokes go out electromagnetic wavelength, and this plane heat source 10 can produce a visible light thermal radiation; The thickness of zone of heating 16 is thin more, and it is long more that plane heat source 10 spokes go out electromagnetic wavelength, and this plane heat source 10 can produce an infrared heat radiation.Thickness one timing of zone of heating 16, the size of supply voltage and plane heat source 10 spokes go out electromagnetic wavelength and are inversely proportional to.Promptly when thickness one timing of zone of heating 16, supply voltage is big more, and it is short more that plane heat source 10 spokes go out electromagnetic wavelength, and this plane heat source 10 can produce a visible light thermal radiation; Supply voltage is more little, and it is long more that plane heat source 10 spokes go out electromagnetic wavelength, and this plane heat source 10 can produce an infrared emanation.
Carbon nano-tube has excellent conducting performance and thermal stability, and as a desirable black matrix structure, has than higher radiation efficiency.This plane heat source 10 is exposed in the environment of oxidizing gas or atmosphere, and wherein the carbon nano-tube layer thickness is 1 millimeter, and by regulating supply voltage at 10 volts～30 volts, this plane heat source 10 can give off the long electromagnetic wave of wavelength.Find that by temperature measuring set the temperature of this plane heat source 10 is 50 ℃～500 ℃.For object with black matrix structure, when being 200 ℃～450 ℃, its pairing temperature just can send thermal radiation invisible to the human eye (infrared ray), and the thermal radiation of this moment is the most stable, most effective.Use the heater element that carbon nanotube layer is made, can be applicable to fields such as electric heater, infrared therapeutic apparatus, electric heater.
Further, the plane heat source among the technical program embodiment 10 is put into a vacuum plant, by regulating supply voltage at 80 volts～150 volts, this plane heat source 10 can give off the short electromagnetic wave of wavelength.When supply voltage during greater than 150 volts, this plane heat source 10 can send visible lights such as ruddiness, gold-tinted successively.Find that by temperature measuring set the temperature of this plane heat source 10 can reach more than 1500 ℃, can produce an ordinary hot radiation this moment.Along with the further increase of supply voltage, this plane heat source 10 can also produce the ray invisible to the human eye (ultraviolet light) of killing bacteria, can be applicable to fields such as light source, display device.
Described plane heat source has the following advantages: the first, because CNT has preferably intensity and tough The property carbon nanotube layer flexible better, be difficult for breaking, make it have long service life. The second, carbon is received Even carbon nanotube in the mitron layer distributes, and therefore has uniform thickness and resistance, and heating is even, carbon The electric conversion efficiency height of nanotube is so this plane heat source has heat up rapid, little, the heat exchange of thermo-lag The characteristics that speed is fast, radiation efficiency is high. The 3rd, the diameter of CNT is littler, so that carbon nanotube layer Have littler area or thickness, can prepare the micro face thermal source, be applied to the heating of microdevice. The Four, described carbon nanotube layer can directly obtain by rolling carbon nano pipe array, is easy to preparation, becomes This is lower.
In addition, those skilled in the art also can do other variations in spirit of the present invention, and certainly, these are complied with Variation according to spirit of the present invention is done all should be included in the present invention's range required for protection.

Claims (12)

1. plane heat source, it comprises:
One substrate;
One zone of heating, described zone of heating is arranged at the surface of substrate; And,
At least two electrodes, this two electrode gap settings and being electrically connected with zone of heating respectively;
It is characterized in that described zone of heating comprises a carbon nanotube layer, and this carbon nanotube layer carbon nano-tube of comprising a plurality of isotropism, being arranged of preferred orient along a fixed-direction or different directions.
2. plane heat source as claimed in claim 1 is characterized in that, the carbon nano-tube in the described carbon nanotube layer and the surface of the carbon nanotube layer α that has angle, and wherein, α is more than or equal to zero degree and smaller or equal to 15 degree (0≤α≤15 °).
3. plane heat source as claimed in claim 1 is characterized in that, the thickness of described carbon nanotube layer is 1 micron to 1 millimeter.
4. plane heat source as claimed in claim 1 is characterized in that the carbon nano-tube in the described carbon nanotube layer partly overlaps.
5. plane heat source as claimed in claim 1 is characterized in that, attracts each other, combines closely by Van der Waals force between the carbon nano-tube in the described carbon nanotube layer.
6. plane heat source as claimed in claim 1 is characterized in that, the length of described carbon nano-tube is greater than 50 microns, and diameter is less than 50 nanometers.
7. plane heat source as claimed in claim 1 is characterized in that, the material of described at least two electrodes is metal, alloy, indium tin oxide, antimony tin oxide, conductive silver glue, conducting polymer or conductive carbon nanotube.
8. plane heat source as claimed in claim 1 is characterized in that, described at least two electrodes are arranged on the same surface or the different surfaces of zone of heating.
9. plane heat source as claimed in claim 1 is characterized in that, the material of described substrate is flexible material or hard material, and described flexible material comprises plastics or flexible fiber, and described hard material comprises pottery, glass, resin or quartz.
10. plane heat source as claimed in claim 1 is characterized in that described plane heat source further comprises a reflector, and this reflector is arranged between zone of heating and the substrate or is arranged at the surface of described substrate away from zone of heating.
11. plane heat source as claimed in claim 10 is characterized in that, the material in described reflector is metal oxide, slaine or pottery, and thickness is 100 microns～0.5 millimeter.
12. plane heat source as claimed in claim 1 is characterized in that, described plane heat source comprises that further an insulating protective layer is arranged at described zone of heating surface, and the material of described insulating protective layer comprises rubber or resin.
CN200810142615A 2007-09-28 2008-07-25 Plane heat source Active CN101636008B (en)

Priority Applications (40)

Application Number Priority Date Filing Date Title
CN200810142615A CN101636008B (en) 2008-07-25 2008-07-25 Plane heat source
EP08253151A EP2043406B1 (en) 2007-09-28 2008-09-26 Plane heat source
KR1020080094915A KR20090033138A (en) 2007-09-28 2008-09-26 Planar heating source
ES08253151T ES2386584T3 (en) 2007-09-28 2008-09-26 Flat thermal source
US12/456,071 US20100126985A1 (en) 2008-06-13 2009-06-11 Carbon nanotube heater
US12/460,853 US20090321419A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,848 US20100000985A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,849 US20100000986A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,817 US20100108664A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,868 US20090321421A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,867 US20090314765A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,859 US20100000989A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,871 US20100230400A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,850 US20100140257A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,854 US20090321420A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,851 US20090321418A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,858 US20100000988A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,869 US20100139845A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,870 US20100000990A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,852 US20100140258A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
US12/460,855 US20100000987A1 (en) 2008-06-13 2009-07-23 Carbon nanotube heater
JP2009173469A JP5390288B2 (en) 2008-07-25 2009-07-24 Surface heat source
US12/462,188 US20100139851A1 (en) 2008-06-13 2009-07-30 Carbon nanotube heater
US12/462,155 US20100140259A1 (en) 2008-06-13 2009-07-30 Carbon nanotube heater
US12/462,153 US20100000669A1 (en) 2008-06-13 2009-07-30 Carbon nanotube heater
US12/655,507 US20100122980A1 (en) 2008-06-13 2009-12-31 Carbon nanotube heater
US12/658,237 US20100154975A1 (en) 2008-06-13 2010-02-04 Carbon Nanotube heater
US12/658,182 US20100147827A1 (en) 2008-06-13 2010-02-04 Carbon nanotube heater
US12/658,193 US20100147829A1 (en) 2008-06-13 2010-02-04 Carbon nanotube heater
US12/658,184 US20100147828A1 (en) 2008-06-13 2010-02-04 Carbon nanotube heater
US12/658,198 US20100147830A1 (en) 2008-06-07 2010-02-04 Carbon nanotube heater
US12/660,356 US20110024410A1 (en) 2008-06-13 2010-02-25 Carbon nanotube heater
US12/660,820 US20100163547A1 (en) 2008-06-13 2010-03-04 Carbon nanotube heater
US12/661,165 US20100170891A1 (en) 2008-06-13 2010-03-11 Carbon nanotube heater
US12/661,133 US20100200568A1 (en) 2008-06-13 2010-03-11 Carbon nanotube heater
US12/661,115 US20100200567A1 (en) 2008-06-13 2010-03-11 Carbon nanotube heater
US12/661,110 US20100218367A1 (en) 2008-06-13 2010-03-11 Method for making carbon nanotube heater
US12/661,150 US20100170890A1 (en) 2008-06-13 2010-03-11 Carbon nanotube heater
US12/661,926 US20100187221A1 (en) 2008-06-13 2010-03-25 Carbon nanotube hearter
US12/750,186 US20100180429A1 (en) 2008-06-13 2010-03-30 Carbon nanotube heater

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