TWI462628B - Planar heating source - Google Patents
Planar heating source Download PDFInfo
- Publication number
- TWI462628B TWI462628B TW097130306A TW97130306A TWI462628B TW I462628 B TWI462628 B TW I462628B TW 097130306 A TW097130306 A TW 097130306A TW 97130306 A TW97130306 A TW 97130306A TW I462628 B TWI462628 B TW I462628B
- Authority
- TW
- Taiwan
- Prior art keywords
- heat source
- surface heat
- heating layer
- carbon nanotube
- long
- Prior art date
Links
Description
本發明涉及一種面熱源，尤其涉及一種基於奈米碳管的面熱源。 The invention relates to a surface heat source, in particular to a surface heat source based on a carbon nanotube.
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域、科研領域或生活領域等，如電加熱器、紅外治療儀、電暖器等。 Heat sources play an important role in people's production, life, and research. The surface 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 heat the object, so that the surface heat source can simultaneously heat various parts of the object to be heated, and the heating surface is wide. Uniform heating and high efficiency. The surface heat source has been successfully used in industrial fields, scientific research fields or living areas, such as electric heaters, infrared therapeutic devices, and electric heaters.
先前面熱源一般包括一加熱層和至少兩個電極，該至少兩個電極設置於該加熱層的表面，並與該加熱層的表面電連接。當連接加熱層上的電極通入低電壓電流時，熱量立刻從加熱層釋放出來。目前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，電熱絲特別係彎曲或繞折成一定角度時因強度不高易於折斷，故其應用受到限制。另，以金屬製成的電熱絲所產生的熱量係以普通波長向外輻射的，其電熱轉換效率不高不利於節省能源。 The front front heat source generally includes a heating layer and at least two electrodes disposed on a surface of the heating layer and electrically connected to a surface of the heating layer. When the electrode connected to the heating layer is supplied with a low voltage current, heat is immediately released from the heating layer. Currently, the surface heat source commercially available is usually electrically heated by using a heating wire made of metal as a heating layer. However, the electric heating wire is particularly limited in bending or twisting at a certain angle because it is not easily broken due to its low strength, so its application is limited. In addition, the heat generated by the heating wire made of metal is radiated outward at a common wavelength, and the low electrothermal conversion efficiency is not conducive to energy saving.
非金屬碳纖維導電材料的發明為面熱源的發展帶來了突破。採用碳纖維的加熱層通常在碳纖維外部塗覆一層防水的絕緣層用作電熱轉換的元件以代替金屬電熱絲。由於碳纖維具有較好的韌性，這在一定程度上解決了電熱 絲強度不高易折斷的缺點。然而，由於碳纖維仍係以普通波長向外散熱，故並未解決電熱轉換率低的問題。為解決上述問題，採用碳纖維的加熱層一般包括複數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芯線。該化纖或者棉線的外面浸塗一層防水阻燃絕緣材料。所述導電芯線由複數根碳纖維與複數根表面黏塗有遠紅外塗料的棉線纏繞而成。導電芯線中加入黏塗有遠紅外塗料的棉線，一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。 The invention of non-metallic carbon fiber conductive materials has brought about a breakthrough in the development of surface heat sources. A heating layer using carbon fibers is usually coated with a waterproof insulating layer on the outside of the carbon fibers as an electrothermal conversion element instead of the metal heating wire. Due to the good toughness of carbon fiber, this solves the electric heating to some extent. The shortcomings of the wire strength is not easy to break. However, since the carbon fiber is still radiated outward at a normal wavelength, the problem of low electrothermal conversion rate is not solved. In order to solve the above problems, 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 core wire wrapped with chemical fiber or cotton thread. The outer surface of the chemical fiber or cotton thread is dip coated with a waterproof and flame-retardant insulating material. The conductive core wire is formed by winding a plurality of carbon fibers and a plurality of cotton threads coated with a far-infrared coating on the surface. The cotton wire coated with the far-infrared coating is added to the conductive core 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.
然而，採用碳纖維紙作為加熱層具有以下缺點：第一，碳纖維強度不夠大，柔性不夠好，容易破裂，需要加入棉線提高碳纖維的強度，限制了其應有範圍；第二，碳纖維本身的電熱轉換效率較低，需加入黏塗有遠紅外塗料的棉線提高電熱轉換效率，不利於節能環保；第三，需先製成碳纖維熱源線再製成加熱層，不利於大面積製作，不利於均勻性的要求，同時，不利於微型面熱源的製作。 However, the use of carbon fiber paper as the heating layer has the following disadvantages: First, the carbon fiber strength is not large enough, the flexibility is not good enough, and it is easy to break. It is necessary to add cotton wire to increase the strength of the carbon fiber, and limit its proper range; second, the electrothermal conversion of the carbon fiber itself The efficiency is low, it is necessary to add the cotton wire coated with far-infrared coating to improve the electrothermal conversion efficiency, which is not conducive to energy conservation and environmental protection. Thirdly, the carbon fiber heat source line needs to be first made into a heating layer, which is not conducive to large-area production, which is not conducive to uniformity. The requirements, at the same time, are not conducive to the production of miniature surface heat sources.
有鑒於此，提供一種具有強度大，電熱轉換效率較高，有利於節省能源且發熱均勻，大小可控，可製成大面積或者微型的面熱源實為必要。 In view of this, it is necessary to provide a surface heat source with large strength, high electrothermal conversion efficiency, energy saving, uniform heat generation, and controllable size, and can be made into a large area or a miniature surface heat source.
一種面熱源，該面熱源包括一基底；一加熱層，所述加熱層設置於該基底的表面；至少兩電極間隔設置且分別與該加熱層電接觸，其中，所述加熱層包括複數個奈米 碳管長線結構。 A surface heat source, the surface heat source comprising a substrate; a heating layer, the heating layer is disposed on a surface of the substrate; at least two electrodes are spaced apart and electrically contacted with the heating layer, wherein the heating layer comprises a plurality of layers Meter Carbon tube long-line structure.
相較於先前技術，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，線狀奈米碳管結構的強度較大，柔性較好，不易破裂，使其具有較長的使用壽命。第二，線狀奈米碳管結構中的奈米碳管均勻分佈，故具有均勻的厚度及電阻，發熱均勻，奈米碳管的電熱轉換效率高，故該面熱源具有升溫迅速、熱滯後小、熱交換速度快的特點。第三，奈米碳管的直徑較小，使得線狀奈米碳管結構具有較小的厚度，可製備微型面熱源，應用於微型器件的加熱。 Compared with the prior art, the surface heat source has the following advantages: First, since the carbon nanotube has good strength and toughness, the linear carbon nanotube structure has high strength, good flexibility, and is not easily broken. It has a long service life. Secondly, the carbon nanotubes in the linear carbon nanotube structure are evenly distributed, so that the carbon nanotubes have uniform thickness and electric resistance, uniform heat generation, and the electric heat conversion efficiency of the carbon nanotubes is high, so the surface heat source has rapid heating and thermal hysteresis. Small, fast heat exchange features. Third, the diameter of the carbon nanotubes is small, so that the linear carbon nanotube structure has a small thickness, and a micro-surface heat source can be prepared for heating of the micro device.
以下將結合附圖詳細說明本技術方案面熱源。 The surface heat source of the present technical solution will be described in detail below with reference to the accompanying drawings.
請參閱圖1及圖2，本技術方案實施例提供一種面熱源10，該面熱源10包括一基底18、一反射層17、一加熱層16、一第一電極12、一第二電極14和一絕緣保護層15。所述反射層17設置於基底18的表面。所述加熱層16設置於所述反射層17的表面。所述第一電極12和第二電極14間隔設置於所述加熱層16的表面，並與該加熱層16電接觸，用於使所述加熱層16中流過電流。所述絕緣保護層15設置於所述加熱層16的表面，並將所述第一電極12和第二電極14覆蓋，用於避免所述加熱層16吸附外界雜質。 Referring to FIG. 1 and FIG. 2 , an embodiment of the present technical solution provides a surface heat source 10 including a substrate 18 , a reflective layer 17 , a heating layer 16 , a first electrode 12 , and a second electrode 14 . An insulating protective layer 15. The reflective layer 17 is disposed on the surface of the substrate 18. The heating layer 16 is disposed on a surface of the reflective layer 17. The first electrode 12 and the second electrode 14 are spaced apart from the surface of the heating layer 16 and are in electrical contact with the heating layer 16 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 covers the first electrode 12 and the second electrode 14 for preventing the heating layer 16 from adsorbing external impurities.
所述基底18形狀不限，其具有一表面用於支撐加熱層16或者反射層17。優選地，所述基底18為一板狀基底，其材料可為硬性材料，如：陶瓷、玻璃、樹脂、石英等，亦可選擇柔性材料，如：塑膠或柔性纖維等。當為柔性 材料時，該面熱源10在使用時可根據需要彎折成任意形狀。其中，基底18的大小不限，可依據實際需要進行改變。 The substrate 18 is not limited in shape and has a surface for supporting the heating layer 16 or the reflective layer 17. Preferably, the substrate 18 is a plate-shaped substrate, and the material thereof may be a hard material such as ceramics, glass, resin, quartz, etc., and a flexible material such as plastic or flexible fiber may also be selected. As flexible In the case of materials, the surface heat source 10 can be bent into any shape as needed during use. The size of the substrate 18 is not limited and can be changed according to actual needs.
所述反射層17的設置用來反射加熱層16所發的熱量，從而控制加熱的方向，用於單面加熱，並進一步提高加熱的效率。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為三氧化二鋁層，其厚度為100微米~0.5毫米。該反射層17可通過濺射或其他方法形成於該基底18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和所述反射層17之間，進一步加強反射層17反射熱量的作用。所述反射層17為一可選擇的結構。所述加熱層16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。 The reflective layer 17 is arranged to reflect the heat generated by the heating layer 16, thereby controlling the direction of heating, for single-sided heating, and further improving the efficiency of heating. The material of the reflective layer 17 is a white insulating material such as a metal oxide, a metal salt or a ceramic. In this embodiment, the reflective layer 17 is a layer of aluminum oxide having a thickness of 100 micrometers to 0.5 millimeters. The reflective layer 17 can be formed on the surface of the substrate 18 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 reflective layer 17, further enhancing the reflective layer 17 to reflect heat. effect. The reflective layer 17 is an alternative structure. The heating layer 16 can be directly disposed on the surface of the substrate 18, and the heating direction of the surface heat source 10 is not limited, and can be used for double-sided heating.
所述加熱層16包括複數個線狀奈米碳管結構160。所述複數個線狀奈米碳管結構160平行鋪設，或者交叉鋪設於所述支撐體18表面。其中，線狀奈米碳管結構160之間交叉的角度不限。所述相鄰兩個平行的線狀奈米碳管結構160之間的距離為0微米~30微米。本實施例中，優選相鄰兩個平行的線狀奈米碳管結構160間隔的距離為20微米。可以理解，所述複數個線狀奈米碳管結構160排列或者鋪設的方式不限，只需確保形成一均勻的加熱層16即可。進一步地，所述加熱層16中至少部分線狀奈米碳管結構160沿從所述第一電極22向第二電極24延伸的方向鋪設於所 述支撐體18表面，以確保流經線狀奈米碳管結構160的電流最大。所述交叉鋪設的線狀奈米碳管結構160具有很好的韌性與自支撐性，無需基底18。當面熱源10不包括基底18時，所述反射層17可直接設置於所述加熱層16的表面。所述加熱層16的厚度為3毫米~25毫米。 The heating layer 16 includes a plurality of linear carbon nanotube structures 160. The plurality of linear carbon nanotube structures 160 are laid in parallel or cross-laid on the surface of the support body 18. The angle between the linear carbon nanotube structures 160 is not limited. The distance between the adjacent two parallel linear carbon nanotube structures 160 is from 0 micrometers to 30 micrometers. In this embodiment, it is preferred that the adjacent two parallel linear carbon nanotube structures 160 are spaced apart by a distance of 20 microns. It can be understood that the manner in which the plurality of linear carbon nanotube structures 160 are arranged or laid is not limited, and only a uniform heating layer 16 is required to be formed. Further, at least a portion of the linear carbon nanotube structure 160 in the heating layer 16 is laid in a direction extending from the first electrode 22 to the second electrode 24. The surface of the support 18 is described to ensure maximum current flow through the linear carbon nanotube structure 160. The cross-laid linear carbon nanotube structure 160 has good toughness and self-supportability without the need for the substrate 18. When the surface heat source 10 does not include the substrate 18, the reflective layer 17 may be disposed directly on the surface of the heating layer 16. The heating layer 16 has a thickness of 3 mm to 25 mm.
所述線狀奈米碳管結構160包括至少一根奈米碳管長線161。請參閱圖3及圖4，優選地所述線狀奈米碳管結構160係由複數根奈米碳管長線161組成的束狀結構或者由複數根奈米碳管長線161組成的絞線結構。所述線狀奈米碳管結構160的直徑為20微米~2毫米，其大小由奈米碳管長線161的根數及直徑大小決定，奈米碳管長線161的直徑越大，根數越多，線狀奈米碳管結構160的直徑越大，反之，線狀奈米碳管結構160的直徑越小。所述線狀奈米碳管結構160的長度大小由奈米碳管長線161的長度大小決定。本實施例中所述線狀奈米碳管結構160係由複數根奈米碳管長線161組成的束狀結構，直徑為50微米。 The linear carbon nanotube structure 160 includes at least one nano carbon tube long line 161. Referring to FIG. 3 and FIG. 4, preferably, the linear carbon nanotube structure 160 is a bundle structure composed of a plurality of carbon nanotube long wires 161 or a strand structure composed of a plurality of carbon nanotube long wires 161. . The diameter of the linear carbon nanotube structure 160 is 20 micrometers to 2 millimeters, and the size thereof is determined by the number and diameter of the long carbon nanotubes 161. The larger the diameter of the long carbon nanotubes 161, the greater the number of the roots. The diameter of the linear carbon nanotube structure 160 is larger, and conversely, the diameter of the linear carbon nanotube structure 160 is smaller. The length of the linear carbon nanotube structure 160 is determined by the length of the carbon nanotube long line 161. The linear carbon nanotube structure 160 in the present embodiment is a bundle structure composed of a plurality of long carbon nanotube long wires 161 and has a diameter of 50 μm.
請參閱圖5及圖6，所述奈米碳管長線161係由複數個首尾相連的奈米碳管束組成的束狀結構或者絞線結構。所述奈米碳管長線包括沿奈米碳管長線161的軸向方向擇優取向排列的奈米碳管。具體地，所述束狀結構的奈米碳管長線161可通過有機溶劑處理所述奈米碳管薄膜，或者通過直接拉取較窄寬度的奈米碳管陣列獲得。該奈米碳管長線161中奈米碳管沿奈米碳管長線的軸向方向平行排列。所述絞線結構奈米碳管長線161可通過對束狀結構的奈米碳管長線161施加機械外力扭轉獲得。扭轉後該奈米碳 管長線161中奈米碳管沿奈米碳管長線的軸向方向螺旋排列。 Referring to FIG. 5 and FIG. 6, the carbon nanotube long line 161 is a bundle structure or a stranded structure composed of a plurality of end-to-end connected carbon nanotube bundles. The carbon nanotube long line includes carbon nanotubes arranged in a preferred orientation along the axial direction of the carbon nanotube long line 161. Specifically, the nanotube-shaped long carbon nanotube line 161 of the bundle structure may be obtained by treating the carbon nanotube film with an organic solvent, or by directly drawing a narrow-width carbon nanotube array. The carbon nanotubes in the long carbon wire 161 of the carbon nanotube are arranged in parallel along the axial direction of the long carbon nanotube line. The stranded structure carbon nanotube long wire 161 can be obtained by twisting a mechanical external force applied to the nanotube-shaped long carbon wire 161 of the bundle structure. The nanocarbon after twisting The carbon nanotubes in the long line 161 are spirally arranged along the axial direction of the long line of the carbon nanotubes.
所述奈米碳管長線161的直徑與長度和奈米碳管陣列所生長的基底的尺寸有關。可根據實際需求製得。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。所述奈米碳管長線161的直徑為1微米~100微米，長度為50毫米~100毫米。 The diameter of the carbon nanotube long wire 161 is related to the length and the size of the substrate on which the carbon nanotube array is grown. Can be made according to actual needs. In this example, a super-sequential carbon nanotube array was grown on a 4 inch substrate using vapor deposition. The carbon nanotube long wire 161 has a diameter of 1 micrometer to 100 micrometers and a length of 50 mm to 100 mm.
所述線狀奈米碳管結構160中的奈米碳管為單壁奈米碳管、雙壁奈米碳管或者多壁奈米碳管。當所述線狀奈米碳管結構160中的奈米碳管為單壁奈米碳管時，該單壁奈米碳管的直徑為0.5奈米~50奈米。當所述線狀奈米碳管結構160中的奈米碳管為雙壁奈米碳管時，該雙壁奈米碳管的直徑為1.0奈米~50奈米。當所述線狀奈米碳管結構160中的奈米碳管為多壁奈米碳管時，該多壁奈米碳管的直徑為1.5奈米~50奈米。 The carbon nanotubes in the linear carbon nanotube structure 160 are single-walled carbon nanotubes, double-walled carbon nanotubes or multi-walled carbon nanotubes. When the carbon nanotubes in the linear carbon nanotube structure 160 are single-walled carbon nanotubes, the single-walled carbon nanotubes have a diameter of 0.5 nm to 50 nm. When the carbon nanotubes in the linear carbon nanotube structure 160 are double-walled carbon nanotubes, the double-walled carbon nanotubes have a diameter of 1.0 nm to 50 nm. When the carbon nanotubes in the linear carbon nanotube structure 160 are multi-walled carbon nanotubes, the multi-walled carbon nanotubes have a diameter of 1.5 nm to 50 nm.
所述第一電極12和第二電極14由導電材料組成，該第一電極12和第二電極14的形狀不限，可為導電薄膜、金屬片或者金屬引線。優選地，第一電極12和第二電極14均為一層導電薄膜。該導電薄膜的厚度為0.5奈米~100微米。該導電薄膜的材料可為金屬、合金、銦錫氧化物(ITO)、銻錫氧化物(ATO)、導電銀膠、導電聚合物或導電性奈米碳管等。該金屬或合金材料可為鋁、銅、鎢、鉬、金、鈦、釹、鈀、銫或其任意組合的合金。本實施例中，所述第一電極12和第二電極14的材料為金屬鈀膜，厚度為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16之間形成良好的電接觸，減少歐姆接觸電阻。 The first electrode 12 and the second electrode 14 are made of a conductive material, and the shapes of the first electrode 12 and the second electrode 14 are not limited and may be a conductive film, a metal piece or a metal lead. Preferably, the first electrode 12 and the second electrode 14 are each a layer of a conductive film. The conductive film has a thickness of from 0.5 nm to 100 μm. The material of the conductive film may be metal, alloy, indium tin oxide (ITO), antimony tin oxide (ATO), conductive silver paste, conductive polymer or conductive carbon nanotube. The metal or alloy material can be an alloy of aluminum, copper, tungsten, molybdenum, gold, titanium, rhodium, palladium, iridium or any combination thereof. In this embodiment, the material of the first electrode 12 and the second electrode 14 is a metal palladium film and has a thickness of 5 nm. The metal palladium and the carbon nanotube have better wetting effect As a result, good electrical contact between the first electrode 12 and the second electrode 14 and the heating layer 16 is facilitated, and the ohmic contact resistance is reduced.
所述之第一電極12和第二電極14可設置在加熱層16的同一表面上也可設置在加熱層16的不同表面上。其中，第一電極12和第二電極14間隔設置，以使加熱層16應用於面熱源10時接入一定的阻值避免短路現象產生。所述第一電極12和第二電極14的設置位置與線狀奈米碳管結構160的排列相關，至少部分線狀奈米碳管結構160的兩端分別與所述第一電極12和第二電極14電連接。 The first electrode 12 and the second electrode 14 may be disposed on the same surface of the heating layer 16 or on different surfaces of the heating layer 16. The first electrode 12 and the second electrode 14 are spaced apart to allow a certain resistance to be applied when the heating layer 16 is applied to the surface heat source 10 to avoid short circuit. The arrangement positions of the first electrode 12 and the second electrode 14 are related to the arrangement of the linear carbon nanotube structure 160, and the two ends of the at least partially linear carbon nanotube structure 160 are respectively associated with the first electrode 12 and The two electrodes 14 are electrically connected.
另，所述之第一電極12和第二電極14也可通過一導電黏結劑(圖未示)設置於該加熱層16的表面上，導電黏結劑在實現第一電極12和第二電極14與加熱層16電接觸的同時，還可將所述第一電極12和第二電極14更好地固定於加熱層16的表面上。本實施例優選的導電黏結劑為銀膠。 In addition, the first electrode 12 and the second electrode 14 may also be disposed on the surface of the heating layer 16 through a conductive adhesive (not shown), and the conductive adhesive is used to implement the first electrode 12 and the second electrode 14. The first electrode 12 and the second electrode 14 may also be better fixed to the surface of the heating layer 16 while being in electrical contact with the heating layer 16. The preferred conductive adhesive of this embodiment is a silver paste.
可以理解，第一電極12和第二電極14的結構和材料均不限，其設置目的係為了使所述加熱層16中流過電流。故，所述第一電極12和第二電極14只需要導電，並與所述加熱層16之間形成電接觸都在本發明的保護範圍內。 It can be understood that the structure and material of the first electrode 12 and the second electrode 14 are not limited, and the purpose of the first electrode 12 and the second electrode 14 is to make a current flow in the heating layer 16. Therefore, it is within the scope of the present invention that the first electrode 12 and the second electrode 14 need only be electrically conductive and form electrical contact with the heating layer 16.
所述絕緣保護層15為一可選擇結構，其材料為一絕緣材料，如：橡膠、樹脂等。所述絕緣保護層15厚度不限，可根據實際情況選擇。所述絕緣保護層15覆蓋於所述第一電極12、第二電極14和加熱層16之上，可使該面熱源10在絕緣狀態下使用，同時還可避免所述加熱層16中的 奈米碳管吸附外界雜質。本實施例中，該絕緣保護層15的材料為橡膠，其厚度為0.5~2毫米。 The insulating protective layer 15 is an optional structure, and the material thereof is an insulating material such as rubber, resin or the like. The thickness of the insulating protective layer 15 is not limited and may be selected according to actual conditions. The insulating protective layer 15 covers the first electrode 12, the second electrode 14, and the heating layer 16, so that the surface heat source 10 can be used in an insulated state, and the heating layer 16 can also be avoided. The carbon nanotubes adsorb foreign impurities. In this embodiment, the insulating protective layer 15 is made of rubber and has a thickness of 0.5 to 2 mm.
本技術方案實施例的面熱源10在使用時，可先將面熱源10的第一電極12和第二電極14連接導線後接入電源。在接入電源後熱源10中的線狀奈米碳管結構160即可輻射出一定波長範圍的電磁波。所述面熱源20可與待加熱物體的表面直接接觸。或者，由於本實施例中作為加熱層16的線狀奈米碳管結構160中的奈米碳管具有良好的導電性能，且該線狀奈米碳管結構160本身已經具有一定的自支撐性及穩定性，所述面熱源20可與待加熱物體相隔一定的距離設置。 When the surface heat source 10 of the embodiment of the present invention is used, the first electrode 12 and the second electrode 14 of the surface heat source 10 may be connected to a power source after being connected to a power source. The linear carbon nanotube structure 160 in the heat source 10 after being connected to the power source can radiate electromagnetic waves of a certain wavelength range. The surface heat source 20 can be in direct contact with the surface of the object to be heated. Alternatively, since the carbon nanotubes in the linear carbon nanotube structure 160 as the heating layer 16 in the present embodiment have good electrical conductivity, the linear carbon nanotube structure 160 itself has a certain self-supporting property. And stability, the surface heat source 20 can be disposed at a certain distance from the object to be heated.
本技術方案實施例中的面熱源10線上狀奈米碳管結構160的面積大小一定時，可通過調節電源電壓大小和加熱層16的厚度，可輻射出不同波長範圍的電磁波。電源電壓的大小一定時，加熱層16的厚度和麵熱源10輻出電磁波的波長的變化趨勢相反。即當電源電壓大小一定時，加熱層16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；加熱層16的厚度越薄，面熱源10輻出電磁波的波長越長，該面熱源10可產生一紅外線熱輻射。加熱層16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。即當加熱層16的厚度一定時，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10可產生一紅外熱輻射。 When the area of the surface-type carbon nanotube structure 160 of the surface heat source 10 in the embodiment of the present technical solution is constant, electromagnetic waves of different wavelength ranges can be radiated by adjusting the magnitude of the power source voltage and the thickness of the heating layer 16. When the magnitude of the power supply voltage is constant, the thickness of the heating layer 16 and the wavelength of the electromagnetic wave radiated from the surface heat source 10 tend to be opposite. That is, when the power supply voltage is constant, the thicker the thickness of the heating layer 16, 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 heating layer 16, the surface heat source 10 The longer the wavelength of the electromagnetic wave is, the surface heat source 10 can generate an infrared heat radiation. When the thickness of the heating layer 16 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 heating layer 16 is constant, the larger the power source voltage is, the shorter the wavelength of the electromagnetic wave radiated by the surface heat source 10 is, the surface heat source 10 can generate a visible light heat radiation; the smaller the power source voltage, the wavelength of the electromagnetic wave radiated by the surface heat source 10 The longer the surface heat source 10 produces an infrared heat radiation.
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，其中線狀奈米碳管結構的厚度為5毫米，通過在10伏~30伏調節電源電壓，該面熱源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50℃~500℃。對於具有黑體結構的物體來說，其所對應的溫度為200℃~450℃時就能發出人眼看不見的熱輻射(紅外線)，此時的熱輻射最穩定、效率最高。應用該線狀奈米碳管結構製成的發熱元件，可應用於電加熱器、紅外治療儀、電暖器等領域。 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 linear carbon nanotube structure is 5 mm, and the surface heat source 10 can radiate a wavelength by adjusting the power supply voltage at 10 volts to 30 volts. Long electromagnetic waves. The temperature of the surface heat source 10 was found to be 50 ° C to 500 ° C by a temperature measuring instrument. For an object with a black body structure, the corresponding temperature of 200 ° C ~ 450 ° C can emit heat radiation (infrared) that is invisible to the human eye. At this time, the heat radiation is the most stable and efficient. The heating element made of the linear carbon nanotube structure can be applied to the fields of electric heaters, infrared therapeutic devices, electric heaters and the like.
進一步地，將本技術方案實施例中的面熱源10放入一真空裝置中，通過在80伏~150伏調節電源電壓，該面熱源10可輻射出波長較短的電磁波。當電源電壓大於150伏時，該面熱源10陸續會發出紅光、黃光等可見光。通過溫度測量儀發現該面熱源10的溫度可達到1500℃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，該面熱源10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。 Further, the surface heat source 10 in the embodiment of the present technical solution is placed in a vacuum device, and the surface heat source 10 can radiate electromagnetic waves having a short wavelength by adjusting the power supply voltage at 80 volts to 150 volts. When the power supply voltage is greater than 150 volts, the surface heat source 10 gradually emits visible light such as red light or yellow light. It is found by the temperature measuring instrument that the temperature of the surface heat source 10 can reach 1500 ° C or higher, and a normal heat radiation is generated. As the power supply voltage is further increased, the surface heat source 10 can also generate radiation (ultraviolet light) that is invisible to the human eye, and can be applied to fields such as a light source and a display device.
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，線狀奈米碳管結構的強度較大，柔性較好，不易破裂，使其具有較長的使用壽命。第二，線狀奈米碳管結構中的奈米碳管均勻分佈，故具有均勻的厚度及電阻，發熱均勻，奈米碳管的電熱轉換效率高，故該面熱源具有升溫迅速、熱滯後小、熱交換速度快 、輻射效率高的特點。第三，奈米碳管的直徑較小，使得線狀奈米碳管結構具有較小的厚度，可製備微型面熱源，應用於微型器件的加熱。第四，複數個線狀奈米碳管結構交叉形成一複數層結構以提供一定的支撐作用，使奈米碳管複合結構具有更好的韌性。第五，線狀奈米碳管結構可通過從奈米碳管陣列中拉取後作進一步處理得到，方法簡單且有利於大面積面熱源的製作。 The surface heat source has the following advantages: First, since the carbon nanotube has good strength and toughness, the linear carbon nanotube structure has high strength, good flexibility, and is not easily broken, so that it has a long length. Service life. Secondly, the carbon nanotubes in the linear carbon nanotube structure are evenly distributed, so that the carbon nanotubes have uniform thickness and electric resistance, uniform heat generation, and the electric heat conversion efficiency of the carbon nanotubes is high, so the surface heat source has rapid heating and thermal hysteresis. Small, fast heat exchange High radiation efficiency. Third, the diameter of the carbon nanotubes is small, so that the linear carbon nanotube structure has a small thickness, and a micro-surface heat source can be prepared for heating of the micro device. Fourth, a plurality of linear carbon nanotube structures intersect to form a plurality of layers to provide a certain supporting effect, so that the carbon nanotube composite structure has better toughness. Fifth, the linear carbon nanotube structure can be further processed by drawing from the carbon nanotube array, and the method is simple and favorable for the fabrication of a large-area surface heat source.
綜上所述，本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。 In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
10‧‧‧面熱源 10‧‧‧ Face heat source
12‧‧‧第一電極 12‧‧‧First electrode
14‧‧‧第二電極 14‧‧‧second electrode
15‧‧‧絕緣保護層 15‧‧‧Insulation protective layer
16‧‧‧加熱層 16‧‧‧heating layer
160‧‧‧線狀奈米碳管結構 160‧‧‧Linear carbon nanotube structure
161‧‧‧奈米碳管長線 161‧‧‧Nano carbon tube long line
17‧‧‧反射層 17‧‧‧reflective layer
18‧‧‧基底 18‧‧‧Base
圖1係本技術方案實施例的面熱源的結構示意圖。 FIG. 1 is a schematic structural view of a surface heat source according to an embodiment of the present technical solution.
圖2係圖1的Ⅱ-Ⅱ剖面示意圖。 2 is a cross-sectional view taken along line II-II of FIG. 1.
圖3係本技術方案實施例束狀結構的線狀奈米碳管結構的結構示意圖。 3 is a schematic structural view of a linear carbon nanotube structure of a bundle structure according to an embodiment of the present technical solution.
圖4係本技術方案實施例絞線狀結構的線狀奈米碳管結構的結構示意圖。 4 is a schematic structural view of a linear carbon nanotube structure of a stranded structure according to an embodiment of the present technical solution.
圖5係本技術方案實施例束狀結構的奈米碳管長線的掃描電鏡照片。 FIG. 5 is a scanning electron micrograph of a long carbon nanotube tube of a bundle structure according to an embodiment of the present technical solution.
圖6係本技術方案實施例絞線狀結構的奈米碳管長線的掃描電鏡照片。 6 is a scanning electron micrograph of a long carbon nanotube line of a stranded structure of the embodiment of the present technical solution.
10‧‧‧面熱源 10‧‧‧ Face heat source
12‧‧‧第一電極 12‧‧‧First electrode
14‧‧‧第二電極 14‧‧‧second electrode
15‧‧‧絕緣保護層 15‧‧‧Insulation protective layer
16‧‧‧加熱層 16‧‧‧heating layer
160‧‧‧線狀奈米碳管結構 160‧‧‧Linear carbon nanotube structure
17‧‧‧反射層 17‧‧‧reflective layer
18‧‧‧基底 18‧‧‧Base
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097130306A TWI462628B (en) | 2008-08-08 | 2008-08-08 | Planar heating source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097130306A TWI462628B (en) | 2008-08-08 | 2008-08-08 | Planar heating source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201008359A TW201008359A (en) | 2010-02-16 |
| TWI462628B true TWI462628B (en) | 2014-11-21 |
Family
ID=44827417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097130306A TWI462628B (en) | 2008-08-08 | 2008-08-08 | Planar heating source |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI462628B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1710512A (en) * | 1927-07-15 | 1929-04-23 | Anderson Pitt Corp | Heating element |
| US3304459A (en) * | 1964-05-21 | 1967-02-14 | Raytheon Co | Heater for an indirectly heated cathode |
| US20020150524A1 (en) * | 1997-03-07 | 2002-10-17 | William Marsh Rice University | Methods for producing composites of single-wall carbon nanotubes and compositions thereof |
| US20070003718A1 (en) * | 2005-06-29 | 2007-01-04 | Fuji Photo Film Co., Ltd. | Reflector, heating crucible equipped with reflector and process for preparation of radiation image storage panel |
| TW200724486A (en) * | 2005-12-16 | 2007-07-01 | Hon Hai Prec Ind Co Ltd | Carbon nanotubes silk and method for making the same |
| WO2007089118A1 (en) * | 2006-02-03 | 2007-08-09 | Exaenc Corp. | Heating element using carbon nano tube |
| KR100797094B1 (en) * | 2006-09-29 | 2008-01-22 | 한국기계연구원 | Trasparent heater and fabricating method thereof |
-
2008
- 2008-08-08 TW TW097130306A patent/TWI462628B/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1710512A (en) * | 1927-07-15 | 1929-04-23 | Anderson Pitt Corp | Heating element |
| US3304459A (en) * | 1964-05-21 | 1967-02-14 | Raytheon Co | Heater for an indirectly heated cathode |
| US20020150524A1 (en) * | 1997-03-07 | 2002-10-17 | William Marsh Rice University | Methods for producing composites of single-wall carbon nanotubes and compositions thereof |
| US20070003718A1 (en) * | 2005-06-29 | 2007-01-04 | Fuji Photo Film Co., Ltd. | Reflector, heating crucible equipped with reflector and process for preparation of radiation image storage panel |
| TW200724486A (en) * | 2005-12-16 | 2007-07-01 | Hon Hai Prec Ind Co Ltd | Carbon nanotubes silk and method for making the same |
| WO2007089118A1 (en) * | 2006-02-03 | 2007-08-09 | Exaenc Corp. | Heating element using carbon nano tube |
| KR100797094B1 (en) * | 2006-09-29 | 2008-01-22 | 한국기계연구원 | Trasparent heater and fabricating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201008359A (en) | 2010-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101626639B (en) | Plane heat source | |
| TWI420954B (en) | Heater and method for making the same | |
| TWI486090B (en) | Hollow heating source | |
| CN101636005B (en) | Plane heat source | |
| CN101616513B (en) | Linear heat source | |
| CN101636004B (en) | Plane heat source | |
| CN101636007B (en) | Plane heat source | |
| TWI462628B (en) | Planar heating source | |
| TWI462630B (en) | Planar heating source | |
| TWI380733B (en) | Planar heating source | |
| CN101616514B (en) | Linear heat source | |
| TWI360521B (en) | Planar heat source | |
| TWI448417B (en) | Linear heater | |
| TWI380731B (en) | Planar heating source | |
| TWI427027B (en) | Hollow heating source | |
| TWI473524B (en) | Hollow heating source | |
| TWI380730B (en) | Planar heating source | |
| CN101636008B (en) | Plane heat source | |
| TWI462627B (en) | Hollow heating source | |
| TW201000395A (en) | Linear heater | |
| TWI380729B (en) | Linear heater | |
| TWI465145B (en) | Hollow heating source | |
| TWI386363B (en) | Linear heater | |
| TWI466585B (en) | Hollow heating source | |
| TWI380728B (en) | Linear heater |