CN101636011B - Hollow heat source - Google Patents
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- CN101636011B CN101636011B CN200810142610XA CN200810142610A CN101636011B CN 101636011 B CN101636011 B CN 101636011B CN 200810142610X A CN200810142610X A CN 200810142610XA CN 200810142610 A CN200810142610 A CN 200810142610A CN 101636011 B CN101636011 B CN 101636011B
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- 238000010438 heat treatment Methods 0.000 claims abstract description 85
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 47
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 29
- 239000011241 protective layer Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000002238 carbon nanotube film Substances 0.000 claims description 4
- 238000005411 Van der Waals force Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000002322 conducting polymer Substances 0.000 claims description 2
- 229920001940 conductive polymer Polymers 0.000 claims description 2
- 239000013305 flexible fiber Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical group 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 17
- 239000004917 carbon fiber Substances 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 15
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002079 double walled nanotube Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000002048 multi walled nanotube Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- -1 as: pottery Substances 0.000 description 1
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- 239000011733 molybdenum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Classifications
-
- 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
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
-
- 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
- H05B2203/013—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
- 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
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- Resistance Heating (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A hollow heat source comprises a hollow substrate, a heating layer and at least two electrodes, wherein, the heating layer is arranged on the surface of the hollow 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 mutually wound carbon nano tubes.
Description
Technical field
The present invention relates to a kind of hollow heat source, relate in particular to a kind of hollow heat source based on CNT.
Background technology
Thermal source plays an important role in people's production, life, scientific research.Hollow heat source is a kind of of thermal source; Its characteristics are that hollow heat source has a hollow-core construction, heated material is arranged in this hollow-core construction hollow object is heated, therefore; Hollow heat source can heat each position of heated material simultaneously, and it is higher to heat wide, homogeneous heating and efficient.Hollow heat source successfully is used for industrial circle, scientific research field or sphere of life etc., like factory's pipeline, laboratory furnace or kitchen tools roaster etc.
The basic structure of hollow heat source generally includes substrate and is arranged on suprabasil electrothermal layer, produces temperature rising and then the heating object that Joule heat makes electrothermal layer through in electrothermal layer, feeding electric current.The electrothermal layer of existing hollow heat source adopts wire usually, forms through the mode of laying or twine like chromenickel wire, copper wire, molybdenum filament or tungsten filament etc.Yet adopt wire to have following shortcoming as electrothermal layer: one of which, wire surface are oxidized easily, cause local electrical resistance to increase, thereby blown, so useful life is short; Its two, wire is grey-body radiation, therefore, radiation efficiency is low, radiation length is short, and radiation is inhomogeneous; Its three, density of wires is bigger, weight is big, uses inconvenience.
For solving the problem that wire exists as electrothermal layer; Carbon fiber is because it has good black body radiation performance; The focus that advantages such as density is little become the electrothermal layer investigation of materials (sees also " DevelopmentForeground and Market Analyze of Carbon Fiber ", Wang Hai-ying, Hi-TechFiber&Application; Vol8, P765 (2007)).Carbon fiber is during as electrothermal layer, and the form with carbon fiber paper exists usually.Said carbon fiber paper comprises paper base material and is distributed in the asphalt base carbon fiber in this paper base material in a jumble.Wherein, paper base material comprises the mixture of cellulose fiber peacekeeping resin etc., and the diameter of asphalt base carbon fiber is 3~6 millimeters, and length is 5~20 microns.
Yet adopt carbon fiber paper to have following shortcoming as zone of heating: one of which, carbon fiber paper thickness is bigger, is generally tens microns, makes hollow heat source be difficult for making microstructure, can't be applied to the heating of microdevice.Its two owing to comprised paper base material in this carbon fiber paper, so the density of this carbon fiber paper is bigger, weight is big, make to adopt the hollow heat source of this carbon fiber paper use inconvenience.Its three flexible relatively poor because the asphalt base carbon fiber in this carbon fiber paper distributes in a jumble so the intensity of this carbon fiber paper is less, break easily, having limited it should have scope.Its four, the electric conversion efficiency of carbon fiber paper is lower, is unfavorable for energy-conserving and environment-protective.
In view of this, necessary a kind of hollow heat source is provided, this hollow heat source efficiency of heating surface is high, strength and toughness is big, the life-span is long, cost is lower, can be applicable to the both macro and micro device, and the practical application performance is good.
Summary of the invention
A kind of hollow heat source, it comprises: a hollow base; One zone of heating, this zone of heating is arranged at the surface of hollow base; And at least two electrodes, and said at least two electrode gap are arranged at the surface of zone of heating, and be electrically connected with this zone of heating respectively, wherein, described zone of heating comprises a carbon nanotube layer, and this carbon nanotube layer comprises the CNT of a plurality of mutual windings.
Compared with prior art, described hollow heat source has the following advantages: one of which, CNT can be processed the carbon nanotube layer of arbitrary dimension easily, both can be applied to macroscopical field and also can be applied to microscopic fields.Its two, CNT has littler density than carbon fiber, so, adopt the hollow heat source of carbon nanotube layer to have lighter weight, easy to use.Its three, the electric conversion efficiency of carbon nanotube layer is high, thermal resistivity is low, so this hollow heat source have heat up rapidly, thermo-lag is little, rate of heat exchange is fast characteristics.Its four, the CNT lack of alignment in the described carbon nanotube layer has good toughness, can bending fold becomes arbitrary shape and does not break, so have long useful life.
Description of drawings
The structural representation of the hollow heat source that Fig. 1 is provided for present technique scheme first embodiment.
Fig. 2 is the generalized section along the II-II line of Fig. 1.
Fig. 3 is the stereoscan photograph of the carbon nanotube layer of present technique scheme implementation example.
Fig. 4 is the photo of the carbon nanotube layer of present technique scheme implementation example.
The structural representation of the hollow heat source that Fig. 5 is provided for present technique scheme second embodiment.
Fig. 6 is the generalized section of the VI-VI line of Fig. 5.
The structural representation of the hollow heat source that Fig. 7 is provided for present technique scheme the 3rd embodiment.
Fig. 8 is the generalized section along the VIII-VIII line of Fig. 7.
Embodiment
Below will be described with reference to the accompanying drawings present technique scheme hollow heat source.
See also Fig. 1 and Fig. 2, present technique scheme first embodiment provides a kind of hollow heat source 100, and this hollow heat source 100 comprises a hollow base 102; One zone of heating 104, this zone of heating 104 is arranged at the inner surface of this hollow base 102; One reflector 108, this reflector 108 is positioned at the periphery of zone of heating 104, is arranged at the outer surface of this hollow base 102; One first electrode 110 and one second electrode, 112, the first electrodes 110 and second electrode 112 are arranged at intervals at the surface of zone of heating 104, and are electrically connected with zone of heating 104 respectively; One insulating protective layer 106, this insulating protective layer 106 is arranged at the inner surface of zone of heating 104.
The material of said hollow base 102 is not limit, and is used to support zone of heating 104, can be hard material, as: pottery, glass, resin, quartz, plastics etc.Hollow base 102 can also be selected flexible material, as: resin, rubber, plastics or flexible fiber etc.When hollow base 102 was flexible material, this hollow heat source 100 can be bent into arbitrary shape in use as required.The shape size of said hollow base 102 is not limit, and it has a hollow-core construction and gets final product, and can be tubulose, spherical, rectangular-shaped etc., can be full-closed structure, can be semi-closed structure yet, and it specifically can change according to actual needs.The shape of the cross section of hollow base 102 is not also limit, and can be circle, arc, rectangle etc.In the present embodiment, hollow base 102 is a hollow ceramic pipe, and its cross section is a circle.
Said zone of heating 104 is arranged at the inner surface of hollow base 102, is used for to the heating of the inner space of hollow base 102.Said zone of heating 104 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 hollow base 102, also can be arranged at the surface of hollow base 102 through 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.The length of the carbon nanotube layer that the present technique scheme provides is 1~10 centimetre, and width is 1~10 centimetre, and thickness is 1 micron~2 millimeters.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.
Said carbon nanotube layer comprises the CNT of mutual winding, sees also Fig. 3.Attract each other, twine through Van der Waals force between the described CNT, form network-like structure.In this carbon nanotube layer, CNT is evenly to distribute, and random arrangement makes this carbon nanotube layer be isotropism; CNT twines each other, so this carbon nanotube layer has good flexible, can bending fold becomes arbitrary shape and does not break, and sees also Fig. 4.CNT in this carbon nanotube layer comprises one or more in SWCN, double-walled carbon nano-tube and the multi-walled carbon nano-tubes.The diameter of said SWCN is 0.5 nanometer~10 nanometers, and the diameter of double-walled carbon nano-tube is 1.0 nanometers~15 nanometers, and the diameter of multi-walled carbon nano-tubes is 1.5 nanometers~50 nanometers.The length of this CNT is greater than 50 microns.In the present embodiment, the length of CNT is preferably 200~900 microns.
In the present embodiment, zone of heating 104 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 inner surface of hollow base 102.
Said first electrode 110 and second electrode 112 are provided with at interval and are electrically connected with zone of heating respectively, and first electrode 110 and second electrode 112 can be arranged on the same surface of zone of heating 104 and also can be arranged on the different surfaces of zone of heating 104.Said first electrode 110 and second electrode 112 can be arranged on the surface of this zone of heating 104 through the viscosity or the conductive adhesive (figure does not show) of carbon nanotube layer.Conductive adhesive also can be fixed in first electrode 110 and second electrode 112 on the surface of carbon nanotube layer when realizing that first electrode 110 and second electrode 112 electrically contact with carbon nanotube layer better.Can apply voltage to zone of heating 104 through this first electrode 110 and second electrode 112.Wherein, the setting of being separated by between first electrode 110 and second electrode 112 avoids short circuit phenomenon to produce so that insert certain resistance when adopting zone of heating 104 heating powers of carbon nanotube layer.Preferably, first electrode 110 and second electrode 112 are arranged at intervals at the two ends of hollow base 102, and around the surface that is arranged at zone of heating 104.
Said first electrode 110 and second electrode 112 are conductive film, sheet metal or metal lead wire.The material of this conductive film can be metal, alloy, indium tin oxide (ITO), antimony tin oxide (ATO), conductive silver glue, conducting polymer etc.This conductive film can be formed at zone of heating 104 surfaces through physical vaporous deposition, chemical vapour deposition technique or other method.The material of this sheet metal or metal lead wire can be copper sheet or aluminium flake etc.This sheet metal can be fixed in zone of heating 104 surfaces through conductive adhesive.
Said first electrode 110 and second electrode 112 can also be a carbon nano tube structure.This carbon nano tube structure is arranged at the outer surface of zone of heating 104.The outer surface that this carbon nano tube structure can be fixed in zone of heating 104 through viscosity or the conductive adhesive of himself.This carbon nano tube structure comprises and aligning and equally distributed metallic carbon nanotubes.Particularly, this carbon nano tube structure comprises at least one ordered carbon nanotube film or at least one carbon nanotube long line.
In the present embodiment, preferably, two ordered carbon nanotube films are arranged at two ends along hollow base 102 length directions respectively as first electrode 110 and second electrode 112.These two ordered carbon nanotube films are surrounded on the outer surface of zone of heating 104, and electrically contact through forming between conductive adhesive and the zone of heating 104.Said conductive adhesive is preferably elargol.Because the zone of heating 104 in the present embodiment also adopts carbon nanotube layer, so have less ohmic contact resistance between first electrode 110 and second electrode 112 and the zone of heating 104, can improve the utilance of 100 pairs of electric energy of hollow heat source.
Said reflector 108 is used to reflect the heat that zone of heating 104 is sent, and it is heated hollow base 102 inner spaces effectively.Reflector 108 is positioned at zone of heating 104 peripheries, and in the present embodiment, reflector 108 is arranged at the outer surface of hollow base 102.The material in reflector 108 is a white insulating material, as: metal oxide, slaine or pottery etc.Reflector 108 is arranged at the outer surface of hollow base 102 through the method for sputter or coating.In the present embodiment, the material in reflector 108 is preferably alundum (Al, and its thickness is 100 microns~0.5 millimeter.This reflector 108 is deposited on this hollow base 102 outer surfaces through the method for sputter.Be appreciated that but this reflector 108 is a choice structure, when hollow heat source 100 did not comprise the reflector, this hollow heat source 100 also can be used for external heating.
Said insulating protective layer 106 is used for preventing that this hollow heat source 100 from electrically contacting with external world's formation in use, can also prevent the carbon nanotube layer absorption introduced contaminants in the zone of heating 104 simultaneously.In the present embodiment, insulating protective layer 106 is arranged at the inner surface of zone of heating 104.The material of said insulating protective layer 106 is an insulating material, as: rubber, resin etc.Said insulating protective layer 106 thickness are not limit, and can select according to actual conditions.Preferably, the thickness of this insulating protective layer 106 is 0.5~2 millimeter.This insulating protective layer 106 can be formed at the surface of zone of heating 104 through the method for coating or sputter.Be appreciated that but said insulating protective layer 106 is a choice structure.
The hollow heat source 100 that present embodiment provided specifically may further comprise the steps when using: an object to be heated is provided; Object to be heated is arranged at the center of this hollow heat source 100; Hollow heat source 100 is connected the supply voltage that lead inserts 1 volt-20 volts through first electrode 110 with second electrode 112 after, heating power is 1 watt~40 watt-hours, and this hollow heat source can give off wavelength than the electromagnetic wave of growing.The temperature of measuring zone of heating 104 surfaces of finding this hollow heat source 100 through temperature measuring set infrared radiation thermometer AZ8859 is 50 ℃~500 ℃, the heating heated material.It is thus clear that this carbon nanotube layer has higher electric conversion efficiency.Because the heat on zone of heating 104 surfaces passes to heated material with thermal-radiating form; Heats can not realize the even heating to heated material because of various piece in the heated material because produce bigger difference apart from the difference of hollow heat source 100.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, and the thermal radiation heat that is produced is maximum.
This hollow heat source 100 can directly contact it with body surface to be heated or itself and heated object are provided with at interval in use, utilizes its thermal radiation to heat.This hollow heat source 100 can be widely used in like factory's pipeline, laboratory furnace or kitchen tools roaster etc.
The hollow heat source 100 that is provided in the present embodiment has the following advantages: one of which, and zone of heating 104 is a carbon nanotube layer, CNT has strong corrosion resistance, and it can be worked in sour environment; Its two, CNT is than high 100 times with the hardness of steel of volume, weight but have only its 1/6, so, adopt the hollow heat source 20 of CNT to have higher intensity and lighter weight; Its three, the CNT lack of alignment in the described carbon nanotube layer has good toughness, can bending fold becomes arbitrary shape and does not break, so have long useful life.
See also Fig. 5 and Fig. 6, present technique scheme second embodiment provides a kind of hollow heat source 200, and this hollow heat source 200 comprises a hollow base 202; One zone of heating 204, this zone of heating 204 is arranged at the inner surface of this hollow base 202; One reflector 208, this reflector 208 is positioned at the periphery of zone of heating 204; One first electrode 210 and one second electrode, 212, the first electrodes 210 and second electrode 212 are arranged at intervals at the surface of zone of heating 204, and are electrically connected with zone of heating 204 respectively; One insulating protective layer 206, this insulating protective layer 206 is arranged at the inner surface of zone of heating 204.The structure of the hollow heat source 100 that the hollow heat source 200 that is provided among second embodiment and first embodiment are provided is basic identical, and its difference is that reflector 208 is arranged between hollow base 202 and the zone of heating 204, is positioned at the outer surface of zone of heating 204.The structure and material of said hollow base 202, zone of heating 204, reflector 208, first electrode 210 and second electrode 212 is identical with first embodiment.
See also Fig. 7 and Fig. 8, present technique scheme the 3rd embodiment provides a kind of hollow heat source 300, and this hollow heat source 300 comprises a hollow base 302; One zone of heating 304; One reflector 208; One first electrode 310 and one second electrode, 312, the first electrodes 310 and second electrode 312 are arranged at intervals at the surface of zone of heating 204, and are electrically connected with zone of heating 304 respectively.The hollow heat source 300 among the 3rd embodiment and the structure of the hollow heat source 100 among first embodiment are basic identical; Its difference is that this zone of heating 304 is arranged at the outer surface of this hollow base 302, and this reflector 308 is arranged at the outer surface of zone of heating 304; Because zone of heating 304 is arranged between hollow base 302 and the reflector 308; Therefore, need not insulating protective layer, and zone of heating 304 is different with the position in reflector 308.The structure and material in the said hollow base 302 among the 3rd embodiment, zone of heating 304, reflector 308 is identical with first embodiment.
In addition, those skilled in the art also can do other variations in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (15)
1. hollow heat source, it comprises:
One hollow base;
One zone of heating, this zone of heating is arranged at the surface of hollow base; And
At least two electrode gap settings also are 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 comprises a plurality of CNTs that twine each other through Van der Waals force.
2. hollow heat source as claimed in claim 1 is characterized in that described hollow heat source further comprises a reflector, and said reflector is arranged at the periphery of zone of heating.
3. hollow heat source as claimed in claim 2 is characterized in that described hollow heat source further comprises an insulating protective layer, and this insulating protective layer is arranged at the surface of zone of heating.
4. hollow heat source as claimed in claim 3 is characterized in that described zone of heating is arranged at the outer surface of hollow base, and described reflector is arranged at the outer surface of zone of heating, and zone of heating is between hollow base and reflector.
5. hollow heat source as claimed in claim 3 is characterized in that described zone of heating is arranged at the inner surface of hollow base, and described reflector is arranged at the outer surface of hollow base, and described insulating protective layer is arranged at the inner surface of zone of heating.
6. hollow heat source as claimed in claim 3 is characterized in that described zone of heating is arranged at the inner surface of hollow base, and described reflector is arranged between zone of heating and the hollow base, and described insulating protective layer is arranged at the inner surface of zone of heating.
7. hollow heat source as claimed in claim 2 is characterized in that, the material in described reflector is metal oxide, slaine or pottery, and its thickness is 100 microns-0.5 millimeter.
8. hollow heat source as claimed in claim 1 is characterized in that, attracts each other through Van der Waals force between the CNT in the described carbon nanotube layer, forms network-like structure.
9. hollow heat source as claimed in claim 1 is characterized in that, said even carbon nanotube distributes, random arrangement, and carbon nanotube layer is isotropism.
10. hollow heat source as claimed in claim 1 is characterized in that, the thickness of described carbon nanotube layer is 1 micron to 2 millimeters.
11. hollow heat source as claimed in claim 1 is characterized in that, the length of described CNT is greater than 50 microns, and diameter is less than 50 nanometers.
12. hollow heat source as claimed in claim 1 is characterized in that, said at least two electrodes are arranged at the same surface or the different surfaces of zone of heating.
13. hollow heat source as claimed in claim 1 is characterized in that, the material of said at least two electrodes is metal, alloy, indium tin oxide, conductive silver glue, conducting polymer or conductive carbon nanotube.
14. hollow heat source as claimed in claim 1 is characterized in that, the material of said hollow base is flexible material or hard material, and said flexible material is plastics or flexible fiber, and said hard material is pottery, glass, resin, quartz.
15. hollow heat source as claimed in claim 1 is characterized in that, at least one electrode is a carbon nano tube structure in said at least two electrodes, and this carbon nano tube structure comprises at least one ordered carbon nanotube film or at least one carbon nanotube long line.
Priority Applications (39)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810142610XA CN101636011B (en) | 2008-07-25 | 2008-07-25 | Hollow heat source |
US12/456,071 US20100126985A1 (en) | 2008-06-13 | 2009-06-11 | Carbon nanotube heater |
EP20090164766 EP2157831A3 (en) | 2008-07-11 | 2009-07-07 | Hollow heater |
KR1020090063076A KR101195273B1 (en) | 2008-07-11 | 2009-07-10 | Three-dimensional heat source |
US12/460,855 US20100000987A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,854 US20090321420A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,867 US20090314765A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,851 US20090321418A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,849 US20100000986A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,853 US20090321419A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,869 US20100139845A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,848 US20100000985A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,850 US20100140257A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
US12/460,868 US20090321421A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
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US12/460,859 US20100000989A1 (en) | 2008-06-13 | 2009-07-23 | Carbon nanotube heater |
JP2009174783A JP5048730B2 (en) | 2008-07-25 | 2009-07-27 | Hollow heat source |
US12/462,153 US20100000669A1 (en) | 2008-06-13 | 2009-07-30 | Carbon nanotube heater |
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 |
US12/655,507 US20100122980A1 (en) | 2008-06-13 | 2009-12-31 | Carbon nanotube heater |
US12/658,198 US20100147830A1 (en) | 2008-06-07 | 2010-02-04 | Carbon nanotube heater |
US12/658,184 US20100147828A1 (en) | 2008-06-13 | 2010-02-04 | Carbon nanotube heater |
US12/658,237 US20100154975A1 (en) | 2008-06-13 | 2010-02-04 | Carbon Nanotube heater |
US12/658,193 US20100147829A1 (en) | 2008-06-13 | 2010-02-04 | Carbon nanotube heater |
US12/658,182 US20100147827A1 (en) | 2008-06-13 | 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 |
US12/661,150 US20100170890A1 (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 |
US12/661,115 US20100200567A1 (en) | 2008-06-13 | 2010-03-11 | Carbon nanotube heater |
US12/661,133 US20100200568A1 (en) | 2008-06-13 | 2010-03-11 | Carbon nanotube heater |
US12/661,926 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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JP2007272223A (en) * | 2006-03-10 | 2007-10-18 | Ist Corp | Heating fixing belt, its manufacturing method and image fixing device |
CN101090586A (en) * | 2006-06-16 | 2007-12-19 | 清华大学 | Nano flexible electrothermal material and heating device containing the nano flexible electrothermal material |
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