201008360 九、發明說明： .【發明所屬之技術領域】 . 本發明涉及一種面熱源，尤其涉及-種基於奈米碳管 的面熱源。 【先前技術】 熱源在人們的生產、生活、科研中起著重要的作用。 面熱源係熱源的一種，其特點為面熱源具有一平面結構， 將待加熱物體置於該平面結構的上方對物體進行加°熱， 故’面熱源可對待加熱物體的各個部位同時加熱，加熱面 廣、加熱均勻且效率較高。面熱源已成功用於工業領^、 !:領域或生活領域等，如電加熱器、紅外治療儀、電暖 器等。 參 先則面熱源一般包括一加熱層和至少兩個電極，該至 =個電極设置於該加熱層的表面，並與該加熱層的表面 …接。當連接加熱層上的電極通人低電壓電流時，孰量 =加熱層釋放出來。現在市售的面熱源通常採用金屬 製成的電熱絲作為加熱層進行電熱轉換。然而，電熱絲的 強度不高易於折斷，特別係彎曲或繞折成一定角度時，故 應用受到限制。另，以金屬製成的電熱 以普通波長向外輕射的，其電熱轉換效率不高不利;= 能源。 *非金屬石反纖維導電材料的發明為面熱源的發展帶來了 大破採用石厌纖維的加熱層通常在碳纖維外部塗覆一層防 的、’邑彖層用作電熱轉換的元件以代替金屬電熱絲。由於 201008360 石炭纖維具有較好的勒性，這在一定程度上解決了電熱絲強 .度不尚易折斷的缺點。然而，由於碳纖維仍係以 .向外散熱，故並未解決電熱轉換率低的問題。為解決上^ 問題’採用碳纖維的加熱層一般包括多根碳纖維熱源線鋪 設而成。該碳纖維熱源線為一外表包裹有化纖或者棉線的 導電怒線。該化纖或者棉線的外面浸塗一層防水阻辦絕緣 材料。所述導電芯線由多根碳纖維與多根表面枯塗有遠紅 外塗料的棉_繞而成。導電芯線中加人料有遠紅外塗 科的棉線’-來可增強芯線的強度，二來可使通電後碳導 纖維發出的熱量能以紅外波長向外輻射。 然而’採用碳纖維紙作為加熱層具有以下缺 一， 碳纖維強度不夠大，柔性不夠好， 線接古磁鏞Ί野谷易破裂，需要加入棉 限制了其應有範圍；第二，碳纖維 身的電熱轉換效率較低’需加入粘塗有遠紅外塗料的棉 線提南電熱轉換效率，不利於節能環保；第三，需先 熱源線再製成加熱層’不利於大面積製作，不利於 句勻性的要求，同時，不利於微型面熱源的製作。、 有利=於此#供—種具有強度大，電熱轉換效率較高， 且發熱均勻，大小可控，可製成大面積或 者被型的面熱源實為必要。 【發明内容】 個電極且ί括一加熱層；至少兩電極，該至少兩 .„. ^ °又置且为別與該加熱層電接觸.，苴中，所述为 熱層包括至少一牟半雄與域时 ^ψ所述加 官相’且該奈米碳管薄膜包括複 201008360 數個首尾相連且擇優取向排列的奈米碳管。 相較與先前技術，所述面熱源具有以下優點：第一， .奈f碳管的直徑較小，使得奈米碳管層具有較小的厚度， 可製備微型面熱源，應用於微型器件的加数二， =比碳纖維具有更小的密度，故，㈣;米衫層^ j具有更輕的重# ’使用方便。第三，所述之奈米碳管 括至奈米碳♦薄膜，同—奈米碳管薄膜中的奈米 石厌目沿同一方向排列，具有較低的電阻，且奈米碳管的電 ❹2換效率高，熱阻率低，故該面熱源具有升溫迅速、敎 滞後小、熱交換速度快的特點。 【實施方式】 說明本技術方案所 以下將結合附圖及具體實施例詳細 提供的面熱源。 請參閱圖ί及圖2,本技術方案實施例提供一種面熱 10,該面熱源10包括一基底18、_反射層17、一加 :、層16第一電極12、一第二電極14和一絕緣保護 15。所述反射層17設置於基底18的表面。所述加献 =16設置於所述反射層17的表面。所述第—電極以 卓二電極14 _設置於所述加熱| 16的表面，並斑該 加熱層16電接觸，用於使所述加熱層16中流過電流。 ，述絕緣保護層15設置於所述加熱層16的表面，並將 斤述第-電極U和第二電極14覆蓋，用於避免所述加 熟層16吸附外界雜質。 所述基底18形狀不限，其具有—表面用於支樓加熱 二16或者反射層17。優選地，所述基底18為一板狀基 &，其材料可為硬性材料’ # H、玻璃、樹脂、石 8 201008360 英等，亦可選擇柔性材料，如：塑膠或柔性纖維等。當 .為=性材料時’該面熱源1〇在使用時可根據需要彎折成 .任思形狀。其中，基底18的大小不限，可依據實際需要 ，行改變。本實施例優選的基底18為一陶瓷基板。另， 當加熱層16具有一定的自支撐性及穩定性時，所述面熱 源10中的基底18為一可選擇的結構。 ^所述反射層17的設置用來反射加熱層16所發的熱 f，從而控制加熱的方向，用於單面加熱，並進一步提 ❹咼加熱的效率。所述反射層17的材料為一白色絕緣材 料，如·金屬氧化物、金屬鹽或陶瓷等。本實施例中， 反射層17為二氧化二鋁層，其厚度為ι〇〇微米〜毫米。 該反射層17可通過賤射或其他方法形成於該基底^表 .面。可以理解，所述反射層17也可設置在基底18遠離 加熱層16的表面’即所述基底18設置於所述加熱層16 和所述反，層17之間，進一步加強反射層^反射熱量 的作用面熱源10不包括基底18時，所述加熱層16 可直接設置於所述及私靥17 μ生 ❹一 if搂Μ社德 射層 的表面。所述反射層17為 ° 、’口 。所述加熱層可直接設置在基底18 的表面’此時面熱源10的加熱方向不限，可用於雙面加 熱0 A 3ft:f 16包括一奈米碳管層’該奈米碳管層本 ΐ 性’可利用本身的枯性設置於基底18的 結劑設置於基底18的表面。所述之枯 可根據實際需要選擇度和厚度不限， 的厚度為！微米·^米技射案料供的奈米碳管層 9 201008360 所述奈米碳管層包括至少一奈米碳管薄m。_ 圖3，該奈米碳管薄膜可通過直接拉伸一奈米碳管陣％ _ 得。該奈米碳管薄膜包括複數個首尾相連且沿拉伸$ @ •擇優取向排列的奈米碳管。所述奈米碳管均句分佈，1 平行於奈米碳管薄膜表面。所述奈米碳管薄膜中的奈米 碳管之間通過凡德瓦爾力連接。一方面，首尾相連的齐 米碳管之間通過凡德瓦爾力連接，另一方面，平行的^ 米碳管之間部分亦通過凡德瓦爾力結合，故，該奈米石^ ❹管薄膜具有一定的柔韌性’可彎曲折疊成任意形爿^而$ 破裂，且採用該奈米碳管薄膜的面熱源1〇具有較長的使 用壽命。 所述奈米碳管薄臈中的奈米碳管包括單壁奈米碳 管、雙壁奈米碳管及多壁奈米碳管中的一種或多種。所 述單壁奈米碳管的直徑為0.5奈米-10奈米，雙壁奈米碳 管的直徑為1.〇奈米-15奈米，多壁奈米碳管的直徑為15 奈米-50奈米。該奈米碳管的長度大於微米。優選為 ❺200-900微米。 所述奈米碳管薄臈係由奈米碳管陣列經進一步處理 得到的’故其長度不限，寬度和奈米碳管陣列所生長的 基底的尺寸有關，可根據實際需求制得。本實施例中， 採用氣相沈積法在4英寸的基底生長超順排奈米碳管陣 列。所述奈米碳管薄膜的寬度可為〇〇1厘米_1〇厘米，厚 度為1奈米-100微米。奈米碳管薄膜的厚度優選為^ 微米-10微米。 +所述奈米碳管層包括至少兩層重疊設置的奈米碳管 薄膜時，相鄰的奈米碳管薄膜之間通過凡德瓦爾力緊密結 201008360 合。進-步，該奈米碳管層中的奈米碳管薄膜的層數不限， 且相鄰兩層奈米碳管薄膜中的奈米碳管的排列方向之 成一夾角《，（^Κ9〇度，具體可依據實際需求製備。二= 通過控制奈米碳管薄膜的層數可控制奈米碳管層的 =奈米碳管層的熱回應速度與其厚度有關。在相同面 f的情況下’奈米碳管層的厚度越大，熱回應速度越慢. 未碳管'的厚度越小，熱回應速度越快。本實施 歹1中，所述奈米碳管層的厚度為i微米4毫米，奈 ❹St 1秒的時間内就可達到最高溫度。本實：例中： 皁層，丁、米石厌管薄膜在（Μ毫秒時間内就可 故，該面熱源10適用於對物體快速加熱。帛一度。 層太加熱層16採用重疊且交又設置的謂 = 太相鄰兩層奈米碳管薄臈之間交叉的角 管層中奈米碳管薄膜的長度為5厘 二不“官薄膜的寬度為3厘米，奈米碳管薄膜的厚 度為50微米。利用车乎石发替恳士 〇管層設置於反二層本身㈣性，將該奈米破 第-=—Λ極12和第二電極14由導電材料組成，該 金屬片㈣今σ/—電極14的形狀不限，可為導電薄膜、 屬片成者金屬引線。優選地，第一電極 =二為薄膜。該導電薄膜的厚度為〇.5奈米， 微水。自亥導電薄膜的材料可為今屬人人 』;二)、録錫氧化物(ΑΤ0):導電銀° ΓΠΤ該金屬或合金材料可為:銅:= 所述二：極?/铯或其任意組合的合金。本實施例中， 和第一電極14的材料為金屬鈀膜，厚度 11 201008360 2 5奈米。所述金屬鈀與奈米碳管具有較好的潤濕效果， .有利於所述第一電極12及第二電極14與所述加熱層μ •之間形成良好的電接觸，減少歐姆接觸電阻。 所述之第一電極12和第二電極14可設置在加熱層 的同表面上也可設置在加熱層16的不同表面上。戋 ^當所述面熱源1G中未包括基底18時，也孰 ^6固定在間隔的第一電極12和第二電極14表面； 電極12和第二電極14用於支撐加熱層16。其中， _第一電極12和第二電極ι4問 ^ ^ ' 用於面孰源10睥接Γ上 又置乂使加熱層16應 於你么時接疋的阻值避免短路現象產生。由 望-蕾:、、層16的奈米碳管層本身有很好的枯附性，故 12和第二電極14直接就 形成很好的電接觸。 …丁丁反&層之間 另，所述之第—電極12和第二電極14也可通過 電枯結劑（圖未示）設置於兮‘為麻，^ 導 觸的同時，還可將所一電極14與加熱層16電接 ❹地固定於加熱層16的表 和第-電極14更好 劑為銀膠。 。本實施例優選的導電魅結 可以理解’第一電極12和第 均不限，其設置目的#ΑΤ你私+ ι構和材料 流。故，所述第-電m熱層16令流過電 圍内。 之間形成電接觸都在本發明的保護範 所述絕緣保護層j 緣材料，如··橡膠、樹月匕等^ ^構’其材料為—絕 财月曰荨。所述絕緣保護層15厚度不 12 201008360 二第可：據實際情況選擇。所述絕緣保護 .”「電極12、第二電極“和加熱層16之上覆;使: 1 面6、、中源的2絕緣狀態下使用，同時還可避免所述加孰層 及附外界雜質。本實施例中，該絕緣： 護層15的材料為橡膠，其厚度為〇5〜2毫米。 、为丄技:一方案實施例的面熱源10在使用時，可先將面敎 在接/ 一電極12和第二妹14連接導線後接入電源。 在接入電源後熱源10中的奈米碳管層即可輕射出一定波 β ϋ圍的電磁波。所述面熱源10可與待加熱物體的表面直 f接觸。或者，由於本實施例中作為加熱層16的奈米碳管 f中的奈米碳管具有良好的導電性能，且該奈米碳管層本 身已經具有一定的自支撐性及穩定性，所述面熱源忉可與 待加熱物體相隔一定的距離設置。 一 奈米碳管具有良好的導電性能以及熱穩定性，作為一 理想的黑體結構，且具有比較高的熱輻射效率。本實施 例中，對由100層奈米碳管交叉膜組成的奈米碳管層進 ❹行了電熱性此測量。該奈米碳管層長5厘米，寬3厘米。 將該奈米碳管層包裹於一外部直徑為i厘米的基底18 上，且其位於第一電極11〇和第二電極112之間的長度為 3厘米。電流沿著基底丄8的長度方向流入。測量儀器分 別為紅外測溫儀RAYTEK rayner Ip_M與紅外測溫儀測 里儀器，型號為AZ-8859。請參見圖4’當加熱功率為36 瓦時’其表面溫度已經達到37CTC。可見，該奈米碳管層 具有較高的電熱轉換效率。 本技術方案實施例中的面熱源10在奈米碳管層的面 積大小一定時，可通過調節電源電壓大小和奈米碳管層的 13 201008360 厚度，可輻射出不同波長範圍的電磁波。電源電壓的大小 一定時，奈米碳管層的厚度和麵熱源ίο輻出電磁波的波長 成反比。即當電源電壓大小一定時，奈米碳管層的厚度越 -厚，面熱源10輻出電磁波的波長越短，該面熱源10可產 生一可見光熱輻射；奈米碳管層的厚度越薄，面熱源1〇 輻出電磁波的波長越長，該面熱源10可產生一紅外線熱輕 射。奈米碳管層的厚度一定時，電源電壓的大小和麵熱源 10輻出電磁波的波長成反比。即當奈米碳管層的厚度一定 ❹時，電源電壓越大，面熱源10輻出電磁波的波長越短，該 面熱源10可產生一可見光熱輻射；電源電壓越小’面熱源 10輻出電磁波的波長越長，該面熱源1〇可產生一紅外熱 輻射。 奈米碳管具有良好的導電性能以及熱穩定性，且作為 一理想的黑體結構，具有比較高的熱輻射效率。將該面熱 源10暴露在氧化性氣體或者大氣的環境中，其中奈米碳管 層的厚度為5毫米，通過在10伏〜3〇伏調節電源電壓，該 ❹面熱源10可輻射出波長較長的電磁波。通過溫度測量儀發 現該面熱源10的溫度為5(rc〜500〇c。對於具有黑體結構 的物體來說，其所對應的溫度為20CTC〜45(TC時就能發出 ==不見的熱輻射（紅外線），此時的熱輻射最穩定、效 :同。應用该奈米碳管層製成的發熱元 加熱器、紅外治療儀、電暖器等領域。 ㈣於電 地:將本技術方案實施例中的面熱源10放入-调"inV私“通過在8〇伏〜150伏調節電源電壓，該面熱 伏時，該面5長較短的電磁波。當電源電壓大於150 X .、、、“、陸續會發出紅光、黃光等可見光。通過 201008360 溫度測量儀發現該面熱源1〇的溫度可達到15〇〇(>c以上， .此時會產生一普通熱輻射。隨著電源電壓的進一步增大， 4面熱源1〇還能產生殺死細菌的人眼看不見的射線（紫外 光），可應用於光源、顯示器件等領域。 所述之面熱源具有以下優點：第一，由於奈米碳管具 有較好的強度及韌性，奈米碳管層的強度較大，奈米碳管 層的ΐ性好，不易破裂，使其具有較長的使用壽命。第二， 不米碳菅層中的奈米碳管均勻分佈，奈米碳管層具有均勻 ❹的厚度及電阻，發熱均勻，奈米碳管的電熱轉換效率高， 故該面$源具有升溫迅速、熱滯後小、熱交換速度快、輻 射，率尚的特點。第三，奈米碳管的直徑較小，使得奈米 碳管層具有較小的厚度，可製備微型面熱源，應用於微型 器件的加熱。第四，奈米碳管層可通過從奈米碳管陣列中 t取f作進一步處理得到’方法簡單且有利於大面積面埶 源的劁作。 # @… 綜上所述，本發明確已符合發明專利之要件，遂依法 f出專利申請。惟，以上所述者僅為本發明之較佳實施例， 不能=此限制本案之申請專利範圍。舉凡熟悉本案技藝 g认、援依本《明之精神所作之等效修飾或變化，皆應涵 盍於以下申請專利範圍内。 【圓式簡單說明】 圖1係本技術方案實施例的面熱源的結構示意圖。 圖2係圖1的II-II剖面示意圖。 圖3為本技術方案實施例的奈米碳管薄膜的掃描電鏡 〇 圖4為本技術方案實施例的面熱源的表面溫度與加熱 15 201008360 功率的關係圖。 【主要元件符號說明】 面熱源 10 -第一電極 12 第二電極 14 絕緣保護層 15 加熱層 16 反射層 17 ❿基底 18 ❹ 16201008360 IX. Description of the invention: . [Technical field to which the invention pertains] The present invention relates to a surface heat source, and more particularly to a surface heat source based on a carbon nanotube. [Prior Art] Heat sources play an important role in people's production, life, and research. A heat source is a heat source, characterized in that the surface heat source has a planar structure, and the object to be heated is placed above the planar structure to add heat to the object, so that the surface heat source can simultaneously heat and heat the various parts of the object to be heated. Wide surface, uniform heating and high efficiency. The surface heat source has been successfully used in industrial fields, such as fields or living areas, such as electric heaters, infrared therapeutic devices, and electric heaters. The surface heat source generally comprises a heating layer and at least two electrodes, and the electrodes are disposed on the surface of the heating layer and are connected to the surface of the heating layer. When the electrode connected to the heating layer is subjected to a low voltage current, the amount of enthalpy = the heating layer is released. Commercially available surface heat sources are usually electrothermally converted using a heating wire made of metal as a heating layer. However, the strength of the heating wire is not high and it is easy to break, especially when it is bent or folded into a certain angle, so the application is limited. In addition, the electric heat made of metal is lightly emitted at a normal wavelength, and the electrothermal conversion efficiency is not high; = energy. * The invention of non-metal anti-fibrous conductive materials has brought about the development of surface heat sources. The heating layer using stone-repellent fibers is usually coated with a layer of anti-corrosion coating on the outside of the carbon fiber instead of metal electrothermal. wire. Because 201008360 carbon fiber has a good character, this solves the disadvantage of the electric wire being not easy to break. However, since the carbon fiber is still radiated outward, the problem of low electrothermal conversion rate is not solved. In order to solve the problem, the heating layer using carbon fiber generally comprises a plurality of carbon fiber heat source lines. The carbon fiber heat source line is a conductive anger line wrapped with chemical fiber or cotton thread. The outer surface of the chemical fiber or cotton thread is dip coated with a waterproof insulating material. The conductive core wire is formed by a plurality of carbon fibers and a plurality of cotton sheets having a surface coated with a far red paint. The conductive core wire is filled with a far-infrared coated cotton wire to enhance the strength of the core wire, and the heat emitted by the carbon fiber after the energization can be radiated outward at the infrared wavelength. However, the use of carbon fiber paper as the heating layer has the following disadvantages: the carbon fiber strength is not large enough, the flexibility is not good enough, the wire is connected to the ancient magnetic field and the valley is easy to be broken, and the need to add cotton limits its proper range; second, the electric heating of the carbon fiber body The efficiency is lower. 'It is necessary to add the electric heating conversion efficiency of the cotton wire coated with far-infrared coating, which is not conducive to energy saving and environmental protection. Thirdly, it is necessary to make the heating layer before the heat source line is not conducive to large-area production, which is not conducive to sentence uniformity. At the same time, it is not conducive to the production of micro-surface heat sources. , favorable = this # supply - species with strong intensity, high electrothermal conversion efficiency, and uniform heating, size controllable, can be made into a large area or type of surface heat source is really necessary. SUMMARY OF THE INVENTION An electrode and a heating layer; at least two electrodes, the at least two. „. ^ ° is placed and not in electrical contact with the heating layer. In the ,, the thermal layer includes at least one 牟 half male The carbon nanotube film comprises a plurality of carbon nanotube films comprising a plurality of end-to-end and preferential orientations of the 201008360. Compared with the prior art, the surface heat source has the following advantages: First, the diameter of the carbon nanotubes is small, so that the carbon nanotube layer has a small thickness, and a micro-surface heat source can be prepared, which is applied to the addendum of the micro device, which has a smaller density than the carbon fiber, so (4); the rice shirt layer ^ j has a lighter weight # 'easy to use. Third, the nano carbon tube is included in the nano carbon ♦ film, the nano-stone in the same - carbon nanotube film Arranged in the same direction, with low resistance, and the carbon dioxide switching efficiency of the carbon nanotubes is high, and the thermal resistivity is low, so the surface heat source has the characteristics of rapid temperature rise, small enthalpy lag, and fast heat exchange rate. Illustrate the technical solution, which will be described below with reference to the accompanying drawings and specific embodiments. The surface heat source is provided in detail. Referring to FIG. 2 and FIG. 2 , the embodiment of the present invention provides a surface heat 10 including a substrate 18 , a reflective layer 17 , an additive layer , and a first electrode 12 of the layer 16 . a second electrode 14 and an insulating protection 15. The reflective layer 17 is disposed on the surface of the substrate 18. The additional = 16 is disposed on the surface of the reflective layer 17. The first electrode is disposed with the second electrode 14 On the surface of the heating|16, and the heating layer 16 is electrically contacted for flowing a current in the heating layer 16. The insulating protective layer 15 is disposed on the surface of the heating layer 16, and The first electrode U and the second electrode 14 are covered for avoiding adsorption of external impurities by the ripening layer 16. The shape of the substrate 18 is not limited, and has a surface for the branch heating 26 or the reflective layer 17. Preferably, The substrate 18 is a plate-shaped base & the material of which may be a rigid material '#H, glass, resin, stone 8 201008360 英, etc., or a flexible material such as plastic or flexible fiber, etc. = When the material is used, the heat source of the surface can be bent as needed during use. The size of the substrate 18 is not limited, and may be changed according to actual needs. The preferred substrate 18 of the embodiment is a ceramic substrate. In addition, when the heating layer 16 has a certain self-supporting property and stability, The substrate 18 in the surface heat source 10 is an optional structure. The reflective layer 17 is arranged to reflect the heat f generated by the heating layer 16, thereby controlling the direction of heating, for single-sided heating, and further improving The material of the reflective layer 17 is a white insulating material, such as a metal oxide, a metal salt or a ceramic, etc. In this embodiment, the reflective layer 17 is a layer of aluminum oxide having a thickness of ι〇. 〇 micrometers to millimeters. The reflective layer 17 can be formed on the surface of the substrate by sputtering or other methods. It can be understood that the reflective layer 17 can also be disposed on the surface of the substrate 18 away from the heating layer 16, that is, the substrate 18 is disposed between the heating layer 16 and the opposite layer 17, further enhancing the reflective layer to reflect heat. When the surface heat source 10 does not include the substrate 18, the heating layer 16 can be directly disposed on the surface of the private layer of the 17 μm layer. The reflective layer 17 is a °, 'mouth. The heating layer can be directly disposed on the surface of the substrate 18. The heating direction of the surface heat source 10 is not limited, and can be used for double-sided heating. 0 A 3ft: f 16 includes a carbon nanotube layer 'the carbon nanotube layer The sputum' can be provided on the surface of the substrate 18 by the bonding agent provided on the substrate 18 by its own dryness. The dryness can be selected according to the actual needs and the thickness is not limited, the thickness is! The carbon nanotube layer provided by the micrometer·^米技术射案料 9 201008360 The carbon nanotube layer comprises at least one carbon nanotube thin m. _ Figure 3, the carbon nanotube film can be obtained by directly stretching a carbon nanotube array. The carbon nanotube film comprises a plurality of carbon nanotubes connected end to end and arranged along a stretched $ @ • preferred orientation. The carbon nanotubes are uniformly distributed, and 1 is parallel to the surface of the carbon nanotube film. The carbon nanotubes in the carbon nanotube film are connected by van der Waals force. On the one hand, the end-to-end connected carbon nanotubes are connected by van der Waals force, and on the other hand, the parts between the parallel carbon nanotubes are also combined by van der Waals force, so the nano-stone tube It has a certain flexibility 'flexible folding into any shape 而 ^ and rupture, and the surface heat source 1 采用 using the carbon nanotube film has a long service life. The carbon nanotubes in the carbon nanotubes of the carbon nanotubes include one or more of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube. The single-walled carbon nanotube has a diameter of 0.5 nm to 10 nm, the double-walled carbon nanotube has a diameter of 1. nanometer to 15 nm, and the multi-walled carbon nanotube has a diameter of 15 nm. -50 nm. The length of the carbon nanotubes is greater than microns. It is preferably ❺200-900 μm. The carbon nanotube thin tantalum is further processed by the carbon nanotube array, so the length is not limited, and the width is related to the size of the substrate on which the carbon nanotube array is grown, and can be prepared according to actual needs. In this example, a super-aligned carbon nanotube array was grown on a 4-inch substrate by vapor deposition. The carbon nanotube film may have a width of from 1 cm to 1 cm and a thickness of from 1 nm to 100 μm. The thickness of the carbon nanotube film is preferably from μm to 10 μm. + When the carbon nanotube layer comprises at least two layers of carbon nanotube film which are arranged in an overlapping manner, the adjacent carbon nanotube films are closely joined by a van der Waals force 201008360. In the step-by-step manner, the number of layers of the carbon nanotube film in the carbon nanotube layer is not limited, and the arrangement direction of the carbon nanotubes in the adjacent two layers of the carbon nanotube film is at an angle ", (^Κ9) The degree of twist can be prepared according to the actual demand. 2 = The temperature of the carbon nanotube layer can be controlled by the number of layers of the carbon nanotube film to control the thermal response speed of the carbon nanotube layer and its thickness. The larger the thickness of the carbon nanotube layer is, the slower the heat response speed is. The smaller the thickness of the carbon tube is, the faster the heat response speed is. In the first embodiment, the thickness of the carbon nanotube layer is i. Micron 4 mm, Nai St can reach the maximum temperature within 1 second. In this case: In the example: soap layer, butyl, and rice stone anaesthesia film is (in milliseconds, the surface heat source 10 is suitable for The object is heated quickly. Once the layer is too heated, the layer 16 is overlapped and overlapped. The length of the nanotube film in the corner tube layer that crosses between two adjacent layers of carbon nanotubes is 5%. The second film does not have a width of 3 cm, and the carbon nanotube film has a thickness of 50 μm. The girth tube layer is disposed on the anti-two layer itself (four), and the nano-breaking first-=-deuterium 12 and the second electrode 14 are composed of a conductive material, and the shape of the metal piece (four) is not limited to the shape of the σ/− electrode 14 . It can be a conductive film or a metal lead. Preferably, the first electrode = two is a film. The thickness of the conductive film is 〇.5 nm, micro water. The material of the conductive film can be used by everyone. 』; 2), recorded tin oxide (ΑΤ0): conductive silver ° ΓΠΤ the metal or alloy material can be: copper: = the two: the pole / 铯 or any combination of alloys. In this embodiment, and The material of one electrode 14 is a metal palladium film with a thickness of 11 201008360 2 5 nm. The metal palladium has good wetting effect with the carbon nanotubes, and is beneficial to the first electrode 12 and the second electrode 14 A good electrical contact is formed between the heating layers μ, and the ohmic contact resistance is reduced. The first electrode 12 and the second electrode 14 may be disposed on the same surface of the heating layer or on different surfaces of the heating layer 16. When the substrate 18 is not included in the surface heat source 1G, the first electrode 12 is also fixed at the interval. And the surface of the second electrode 14; the electrode 12 and the second electrode 14 are used to support the heating layer 16. wherein, the first electrode 12 and the second electrode ι4 are used for the surface source 10 The heating layer 16 should be used when you are connected to the resistance value to avoid the short circuit phenomenon. From the Wang-lei:, the carbon nanotube layer of the layer 16 itself has a good dryness, so the 12 and the second electrode 14 The electrical contact is formed directly. The first electrode 12 and the second electrode 14 are also disposed between the layers of the butadiene and the second electrode 14 by means of an electric drying agent (not shown). At the same time as the contact, the electrode 14 and the heating layer 16 may be electrically connected to the surface of the heating layer 16 and the first electrode 14. The better agent is silver paste. . The preferred conductive charm of this embodiment can be understood as 'the first electrode 12 and the first limit are not limited, and the setting purpose is ΑΤ 私 私 私 和 and material flow. Therefore, the first electric m thermal layer 16 is caused to flow through the inner circumference. The electrical contact is formed between the materials of the insulating protective layer of the present invention, such as rubber, tree, and the like. The thickness of the insulating protective layer 15 is not 12 201008360. The second can be selected according to actual conditions. The insulation protection "" the electrode 12, the second electrode" and the heating layer 16 are overlaid; so that: 1 surface 6, the middle source 2 is used in an insulated state, and the twisting layer and the external environment are also avoided. Impurities. In this embodiment, the insulating layer 15 is made of rubber and has a thickness of 〇5 to 2 mm. For the purpose of the invention, the surface heat source 10 of the embodiment can be connected to the power source after the connection between the electrode 12 and the second electrode 14 is connected. After the power is turned on, the carbon nanotube layer in the heat source 10 can directly emit electromagnetic waves of a certain wave β. The surface heat source 10 can be in direct f contact with the surface of the object to be heated. Alternatively, since the carbon nanotubes in the carbon nanotubes f as the heating layer 16 in the present embodiment have good electrical conductivity, and the carbon nanotube layer itself has a certain self-supporting property and stability, The surface heat source can be set at a certain distance from the object to be heated. A carbon nanotube has good electrical conductivity and thermal stability, and is an ideal black body structure with relatively high heat radiation efficiency. In this embodiment, the measurement of the electrothermal property of the carbon nanotube layer composed of a 100-layer carbon nanotube cross-film was carried out. The carbon nanotube layer is 5 cm long and 3 cm wide. The carbon nanotube layer was wrapped on a substrate 18 having an outer diameter of i cm, and its length between the first electrode 11 〇 and the second electrode 112 was 3 cm. Current flows in the length direction of the substrate 丄8. The measuring instruments are infrared thermometer RAYTEK rayner Ip_M and infrared thermometer measuring instrument, model AZ-8859. Referring to Figure 4' when the heating power is 36 watts, the surface temperature has reached 37 CTC. It can be seen that the carbon nanotube layer has a high electrothermal conversion efficiency. The surface heat source 10 in the embodiment of the present technical solution can radiate electromagnetic waves of different wavelength ranges by adjusting the power supply voltage and the thickness of the carbon nanotube layer 13 201008360 when the area of the carbon nanotube layer is constant. When the power supply voltage is constant, the thickness of the carbon nanotube layer is inversely proportional to the wavelength of the electromagnetic wave emitted by the surface heat source. That is, when the power supply voltage is constant, the thickness of the carbon nanotube layer is thicker and thicker, and the shorter the wavelength of the electromagnetic wave radiated by the surface heat source 10, the surface heat source 10 can generate a visible light heat radiation; the thinner the thickness of the carbon nanotube layer The longer the wavelength of the surface heat source 1 〇 radiating electromagnetic waves, the surface heat source 10 can generate an infrared heat light. When the thickness of the carbon nanotube layer is constant, the magnitude of the power supply voltage is inversely proportional to the wavelength of the electromagnetic wave radiated from the surface heat source 10. That is, when the thickness of the carbon nanotube layer is constant, the larger the power supply voltage is, the shorter the wavelength of the electromagnetic wave radiated from the surface heat source 10 is, the surface heat source 10 can generate a visible light heat radiation; the smaller the power supply voltage is, the surface heat source 10 is radiated. The longer the wavelength of the electromagnetic wave, the surface heat source 1 〇 can generate an infrared heat radiation. The carbon nanotubes have good electrical conductivity and thermal stability, and have an excellent heat radiation efficiency as an ideal black body structure. The surface heat source 10 is exposed to an oxidizing gas or an atmosphere, wherein the thickness of the carbon nanotube layer is 5 mm. By adjusting the power supply voltage at 10 volts to 3 volts, the surface heat source 10 can radiate a wavelength. Long electromagnetic waves. The temperature of the surface heat source 10 is found to be 5 (rc~500〇c) by a temperature measuring instrument. For an object having a black body structure, the corresponding temperature is 20CTC~45 (the TC can emit == unknown heat radiation) (Infrared), the heat radiation at this time is the most stable and effective: the same applies to the field of heating element heaters, infrared therapeutic devices, electric heaters, etc. made of the carbon nanotube layer. (4) In the electric field: the technical solution In the embodiment, the surface heat source 10 is placed in a "tune" private voltage by adjusting the power supply voltage at 8 volts to 150 volts. When the surface is heated, the surface 5 is shorter than the electromagnetic wave. When the power supply voltage is greater than 150 X. ,,, ", will emit red light, yellow light and other visible light. Through the 201008360 temperature measuring instrument, the temperature of the surface heat source can reach 15 〇〇 (> c or more. At this time, a common heat radiation will be generated. With the further increase of the power supply voltage, the four-sided heat source 1〇 can also generate rays (ultraviolet light) which are invisible to the human eye, which can be used for killing bacteria, and can be applied to fields such as a light source, a display device, etc. The surface heat source has the following advantages: First, because the carbon nanotubes have better strength Toughness, the strength of the carbon nanotube layer is large, the carbon nanotube layer has good enthalpy and is not easy to be broken, so that it has a long service life. Second, the carbon nanotubes in the carbon-free layer are evenly distributed. The carbon nanotube layer has a uniform thickness and resistance, uniform heat generation, and the carbon heat conversion efficiency of the carbon nanotube is high, so the surface of the surface has a rapid temperature rise, a small thermal lag, a fast heat exchange rate, and a radiation rate. Third, the diameter of the carbon nanotubes is small, so that the carbon nanotube layer has a small thickness, and a micro-surface heat source can be prepared for heating of the micro device. Fourth, the carbon nanotube layer can pass through In the carbon nanotube array, t is taken for further processing to obtain a method that is simple and advantageous for large-area surface source. # @... In summary, the present invention has indeed met the requirements of the invention patent, and f Patent application. However, the above is only the preferred embodiment of the present invention, and cannot limit the scope of the patent application in this case. Should be covered in the following application BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a surface heat source according to an embodiment of the present invention. Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1. Fig. 3 is a view showing a carbon nanotube of an embodiment of the present invention. Scanning Electron Microscope of Thin Film FIG. 4 is a diagram showing the relationship between the surface temperature of the surface heat source and the power of heating 15 201008360 in the embodiment of the present invention. [Description of Main Components] Surface Heat Source 10 - First Electrode 12 Second Electrode 14 Insulation Protective Layer 15 Heating layer 16 reflective layer 17 ❿ substrate 18 ❹ 16