JPH02220386A - Far infrared ray heater - Google Patents
Far infrared ray heaterInfo
- Publication number
- JPH02220386A JPH02220386A JP4132589A JP4132589A JPH02220386A JP H02220386 A JPH02220386 A JP H02220386A JP 4132589 A JP4132589 A JP 4132589A JP 4132589 A JP4132589 A JP 4132589A JP H02220386 A JPH02220386 A JP H02220386A
- Authority
- JP
- Japan
- Prior art keywords
- far
- infrared
- glass
- ceramic
- far infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002241 glass-ceramic Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 230000035939 shock Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910001120 nichrome Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052878 cordierite Inorganic materials 0.000 description 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N CuO Inorganic materials [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は暖房機や加熱炉等に用いられる遠赤外線ヒータ
ーに関し、より具体的には熱源として各種の発熱体を使
用し、放射体としてガラスセラミック板を使用する遠赤
外線ヒーターに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to far-infrared heaters used in heaters, heating furnaces, etc., and more specifically, uses various heating elements as the heat source, and glass as the radiator. This invention relates to far-infrared heaters that use ceramic plates.
［従来の技術］
遠赤外線ヒーターは、人体、高分子、水等に吸収されて
熱に変換されやすい波長、すなわち４〜８μｍの遠赤外
線を効率良く放射することによって周囲を暖房あるいは
加熱するものであり、これに用いる放射体には遠赤外線
放射率が高いこと、熱衝撃に強いこと、機械的強度が高
いこと等の特性が要求され、従来よりこの放射体として
主に遠赤外線放射セラミックや高効率赤外線放射セラミ
ックが用いられている。[Prior Art] Far-infrared heaters heat the surrounding area by efficiently emitting far-infrared rays of wavelengths that are easily absorbed by the human body, polymers, water, etc. and converted into heat, that is, 4 to 8 μm. The radiator used for this purpose is required to have characteristics such as high far-infrared emissivity, resistance to thermal shock, and high mechanical strength. Efficient infrared emitting ceramics are used.
［発明が解決しようとする問題点］
しかしながら遠赤外線放射セラミックや高効率赤外線放
射セラミックは、−船釣に遠赤外線放射率及び機械的強
度は高いが、熱膨張係数が５０〜１（１０Ｘｌ０−７／
’Ｃと大きいため熱衝撃に対して弱く割れやすいという
問題がある。さらにこれらのセラミックは、セラミック
粉体を焼結させて製造するので薄型広面積のものが得ら
れ難いという問題も有している。[Problems to be solved by the invention] However, far-infrared emitting ceramics and high-efficiency infrared-emitting ceramics have high far-infrared emissivity and mechanical strength for boat fishing, but have a thermal expansion coefficient of 50 to 1 (10Xl0-7 /
Because it has a large C, it has the problem of being weak against thermal shock and easily cracking. Furthermore, since these ceramics are manufactured by sintering ceramic powder, it is difficult to obtain thin and wide-area ceramics.
本発明の目的は遠赤外線放射率及び機械的強度が高く、
熱衝撃に強いガラスセラミックを用いることによって先
記した要求特性を全て満足する遠赤外線ヒーターを提供
することである。The purpose of the present invention is to have high far-infrared emissivity and mechanical strength,
The object of the present invention is to provide a far-infrared heater that satisfies all of the above-mentioned required characteristics by using glass ceramic that is resistant to thermal shock.
［問題点を解決するための手段］
本発明の遠赤外線ヒーターは、遠赤外線の放射体として
遠赤外線放射率が波長４〜８μｍにおいて黒体の９０％
以上、熱膨張係数が一２０〜２０ＸＨ−７／℃、曲げ強
度が１４００ｋｇ／ｃｍ”以上のガラスセラミック板を
用いてなることを特徴とする。[Means for Solving the Problems] The far-infrared heater of the present invention is a far-infrared radiator that has a far-infrared emissivity of 90% that of a black body at a wavelength of 4 to 8 μm.
The above is characterized in that a glass ceramic plate having a thermal expansion coefficient of 120 to 20XH-7/°C and a bending strength of 1400 kg/cm'' or more is used.
また本発明においては、放射体の少なくとも片面に遠赤
外線放射率の高いセラミック層を被着することによって
先記したガラスセラミック板の遠赤外線放射率の低い波
長域においても高い遠赤外線放射率を有する放射体を得
ることができる。この場合、セラミック層は遠赤外線放
射率が高ければいずれも使用可能であり、例えばベリリ
ア、ジルコニア、チタニア、アルミナ、コージェライト
等が用いられ、溶射等によってガラスセラミック板に被
着する。Furthermore, in the present invention, by coating at least one side of the radiator with a ceramic layer having a high far-infrared emissivity, the radiator has a high far-infrared emissivity even in the wavelength range where the far-infrared emissivity of the glass ceramic plate is low. You can get a radiator. In this case, any ceramic layer can be used as long as it has a high far-infrared emissivity, such as beryllia, zirconia, titania, alumina, cordierite, etc., and is applied to the glass ceramic plate by thermal spraying or the like.
また遠赤外線の放射特性は放射体の温度に依存し、放射
体自体の温度が早く上がる程、又温度が高くなる程、放
射率は高くなる。従ってヒータースイッチを入れた後、
ガラスセラミックの温度を早く上げ、遠赤外線放射を早
く得られるように、本発明ではガラスセラミック放射体
の少なくとも片面に、熱伝導率の高い鉄等の金属、コー
ジェライト等のセラミックあるいはこれらの複合材料を
被着することができる。Furthermore, the radiation characteristics of far-infrared rays depend on the temperature of the radiator, and the faster the temperature of the radiator itself rises or the higher the temperature, the higher the emissivity. Therefore, after turning on the heater switch,
In order to quickly raise the temperature of the glass-ceramic and obtain far-infrared radiation quickly, in the present invention, a metal with high thermal conductivity such as iron, a ceramic such as cordierite, or a composite material thereof is used on at least one side of the glass-ceramic radiator. can be coated.
さらに先記したように遠赤外線ヒーターは、熱源として
各種の発熱体を使用し、これを放射体の片面に接着ある
いは印刷するが、この場合°放射体と発熱体の熱膨張差
によって発熱体が放射体から剥離する恐れがあり、本発
明はこのような剥離の恐れのない遠赤外線ヒーターも提
供するものである。すなわち本発明は、ガラスセラミッ
ク板の片面に保持具を用いて発熱体が配設されてなる遠
赤外線ヒーターも含む、これは先記したようにガラスセ
ラミック板に発熱体を接着すると剥離が起こりやすいた
め、例えば保持具としてセラミック片を用い、これの一
部に接着材を塗布した後、発熱体の数箇所をセラミック
板に止めるように貼着したり、あるいはガラスセラミッ
ク板に保持具として数個のビンを埋め込み、そのピンに
発熱体を収り付けて保持することによってガラスセラミ
ック板に発熱体を一定間隔おいて配設できるため剥離の
問題が解消される。また本発明の遠赤外線ヒーターの一
形態は、耐熱性に優れ、低膨張の無機接着材によって２
枚のガラスセラミック板が貼着され、該ガラスセラミッ
ク板の間に発熱体が配設されてなるものである。この場
合に用いられる無機接着材は、発熱体が加熱した際に劣
化しないように耐熱性に優れてい°ると同時に２枚のガ
ラスセラミック板が加熱されても両者を強固に接着する
ために熱膨張係数がガラスセラミックのそれに近いこと
が必要であり、具体的には耐熱温度が８００℃以上、熱
膨張係数が一２０〜２０ＸｌＯ−７／’Ｃであることが
要求される。また発熱体は、発熱効率の良い物質であれ
ばいずれも使用でき、例えばニクロム鋼、ステンレス鋼
、セラミック等を線状あるいは薄片状に加工したものを
用いる。Furthermore, as mentioned earlier, far-infrared heaters use various heating elements as heat sources, which are glued or printed on one side of the radiator, but in this case, the difference in thermal expansion between the radiator and the heating element causes the heating element to There is a risk that the infrared rays may peel off from the radiator, and the present invention also provides a far-infrared heater that is free from the risk of such peeling. That is, the present invention also includes a far-infrared heater in which a heating element is disposed on one side of a glass-ceramic plate using a holder.This is because, as mentioned above, when a heating element is bonded to a glass-ceramic plate, peeling tends to occur. For example, a ceramic piece may be used as a holder, some of it may be coated with adhesive, and then several parts of the heating element may be fixed to the ceramic plate, or several pieces may be attached to a glass-ceramic plate as a holder. By embedding the bottles and holding the heating elements in the pins, the heating elements can be placed on the glass-ceramic plate at regular intervals, which eliminates the problem of peeling. In addition, one form of the far-infrared heater of the present invention has excellent heat resistance and is made of a low-expansion inorganic adhesive.
Two glass-ceramic plates are adhered to each other, and a heating element is disposed between the glass-ceramic plates. The inorganic adhesive used in this case has excellent heat resistance so that it will not deteriorate when the heating element is heated, and at the same time, it can be used to firmly bond the two glass ceramic plates even if they are heated. It is necessary that the expansion coefficient be close to that of glass ceramic, and specifically, the heat resistance temperature is required to be 800° C. or higher, and the thermal expansion coefficient is required to be 120 to 20XlO-7/'C. The heating element may be any material that has good heat generation efficiency, such as nichrome steel, stainless steel, ceramic, etc., processed into a wire or flake shape.
［作用１
先記した構成からなる本発明の遠赤外線ヒータ−は、発
熱体によって加熱したガラスセラミック板表面から人体
、高分子、水等に吸収され、熱に変換されやすい波長の
遠赤外線が効率良く放射される。[Function 1] The far-infrared heater of the present invention having the above-mentioned configuration efficiently emits far-infrared rays at wavelengths that are easily converted into heat by being absorbed by the human body, polymers, water, etc. from the surface of the glass ceramic plate heated by the heating element. radiates well.
またガラスセラミック板の少なくとも片面に遠赤外線効
率の高いセラミック層を被着することによってより広い
波長域において遠赤外線が効率良く放射され、またガラ
スセラミック板の少なくとも片面に熱伝導率の高い層を
被着することによって放射体がより迅速に加熱される。Furthermore, by coating at least one side of the glass-ceramic plate with a ceramic layer with high far-infrared efficiency, far-infrared rays can be efficiently radiated in a wider wavelength range, and at least one side of the glass-ceramic plate is coated with a layer with high thermal conductivity. The radiator heats up more quickly.
さらに保持具を用いてガラスセラミック板に発熱体を取
り付けたり、あるいは２枚のガラスセラミック板の間に
発熱体を配設することによって発熱体のガラスセラミッ
ク板からの剥離の恐れを解消し、しかも２枚のガラスセ
ラミック板を用いた場合は、両面から同時に効率良く遠
赤外線が放射される。Furthermore, by attaching the heating element to the glass-ceramic plate using a holder, or by placing the heating element between two glass-ceramic plates, the fear of the heating element coming off from the glass-ceramic plate can be eliminated. When using a glass ceramic plate, far infrared rays are efficiently emitted from both sides simultaneously.
［実施例］ 以下本発明を実施例に基づいて説明する。[Example] The present invention will be explained below based on examples.
実施例１
まず、重量百分率で５ｉ０２ ６４．９％、Ａｌ２０３
２２．０％、ＬｉＯ２４，８％、Ｍｌｏ ０．５％、Ｐ
２Ｏ５１，２％、ｚ「０２２．０％、ＴｉＯ２２，２％
、Ｎａ２Ｏ０，５％、に、ｏ Ｏ，４％、Ａｓ２Ｏ３
１，５％からなるガラスになるようにガラス原料を調合
し、それを約１６００℃で１５時間溶融した後、所望の
形状に成形し、それを所定の昇温速度で約１１００℃ま
で加熱処理することによって、遠赤外線放射率が波長４
〜８μｍにおいて黒体の９０％以上、熱膨張係数がｌｌ
Ｘｌ０−７／’Ｃ１曲げ強度が２０００ｋｇ／ｃｍ”の
特性を有するガラスセラミックを作製した。Example 1 First, 5i02 64.9% in weight percentage, Al203
22.0%, LiO24.8%, Mlo 0.5%, P
2O51.2%, z'022.0%, TiO22.2%
, Na2O0,5%, o O,4%, As2O3
Glass raw materials are mixed to form a glass consisting of 1.5%, melted at approximately 1,600°C for 15 hours, formed into a desired shape, and heated at a predetermined heating rate to approximately 1,100°C. By doing this, the far infrared emissivity is reduced to wavelength 4.
At ~8 μm, more than 90% of the black body has a thermal expansion coefficient of 1
A glass ceramic having a Xl0-7/'C1 bending strength of 2000 kg/cm'' was produced.
第１図はこのガラスセラミックの波長２〜１０μｍにお
ける遠赤外線放射率を示すグラフであり、ガラスセラミ
ックを厚さ２．５ｉｕｗに光学研磨した試料を赤外分光
放射強度測定装置を用いて黒体の放射率を１．０として
測定した。また熱膨張係数は石英押棒式の熱膨張計によ
って測定し、曲げ強度はガラスセラミックを５０Ｘ ５
０Ｘ ５φｍ鳳の円柱状に成形して周知の三点荷重測定
法によって測定した。Figure 1 is a graph showing the far-infrared emissivity of this glass-ceramic at a wavelength of 2 to 10 μm. A sample of glass-ceramic optically polished to a thickness of 2.5 iuw was measured using an infrared spectroscopic radiant intensity measurement device. Measurements were made with the emissivity set at 1.0. In addition, the thermal expansion coefficient was measured using a quartz push rod type thermal dilatometer, and the bending strength was measured using a 50×5 glass ceramic.
It was formed into a cylindrical shape of 0×5φm and measured by the well-known three-point load measurement method.
次に、第２図になすようにガラスセラミック板ｌＯから
なる板状成形物（２００Ｘ ２００Ｘ ２ ＋ｓ＋ｓ）
の片面に保持具として長さ３Ｉ１ｍのピン１１を１１本
埋め込みニクロム鋼からなる発熱体！２を各ビンＩＩに
取り付け、ガラスセラミック板ｌＯの下部に脚１３を取
り付けて垂直に立てた遠赤外線ヒーターを作成した。Next, as shown in Fig. 2, a plate-shaped molded product (200X 200X 2 +s+s) made of glass ceramic plate lO
A heating element made of nichrome steel with 11 pins 11 of length 3I1m embedded in one side of the holder as a holder! 2 was attached to each bottle II, and legs 13 were attached to the lower part of the glass ceramic plate IO to create a far-infrared heater standing vertically.
この遠赤外線ヒーターと一般のシーズヒータを用いて金
属板に塗布した市販のペンキを乾燥させたところ、シー
ズヒータでは乾燥するのに約１５分かかり表面に多少シ
ワができたのに対し遠赤外線ヒーターの場合は、約１０
分で乾燥し、又表面にシワが発生せず、良好な仕上がり
であった。When commercially available paint applied to a metal plate was dried using this far-infrared heater and a general sheathed heater, it took about 15 minutes to dry with the sheathed heater, and some wrinkles appeared on the surface, whereas the far-infrared heater In the case of about 10
It dried in minutes and had a good finish with no wrinkles on the surface.
またこの遠赤外線ヒーターを４５０℃まで加熱し放冷す
ることをくり返しても損傷はなく、有用性が確認された
。Furthermore, even when this far-infrared heater was repeatedly heated to 450° C. and allowed to cool, no damage occurred, confirming its usefulness.
実施例２
第３図は実施例１のガラスセラミックの片面に遠赤外線
放射率及び熱伝導率の高いセラミック層（コージェライ
ト、 Ｆｅ２Ｏ３、ＣｕＯの焼結体）を溶射によって被
着し、これを実施例１と同様の方法によって測定した結
果を示すグラフである。実施例１に比べて実施例２のガ
ラスセラミックの方が全波長に亙って遠赤外線放射率が
高いことがわかる。Example 2 Figure 3 shows a ceramic layer (a sintered body of cordierite, Fe2O3, and CuO) with high far-infrared emissivity and high thermal conductivity coated on one side of the glass ceramic of Example 1 by thermal spraying. 3 is a graph showing the results measured by the same method as in Example 1. It can be seen that the glass ceramic of Example 2 has a higher far-infrared emissivity over all wavelengths than that of Example 1.
またこのセラミック層を被着したガラスセラミックにニ
クロム鋼を実施例１と同様の方法で固定して、遠赤外線
ヒーターとし、ペンキの乾燥を行ったところ、７分間で
乾燥し、より好ましい結果であった。Furthermore, when nichrome steel was fixed to the glass ceramic coated with this ceramic layer in the same manner as in Example 1 to form a far-infrared heater and the paint was dried, it dried in 7 minutes, giving a more favorable result. Ta.
実施例３
第４図は本発明の遠赤外線ヒーターの一実施例であり、
１４．１４は実施例１と同様のガラスセラミック板、１
５は無機接着材、１６は発熱体、１７は脚を各々示す。Example 3 FIG. 4 shows an example of the far-infrared heater of the present invention.
14. 14 is the same glass ceramic plate as in Example 1, 1
5 is an inorganic adhesive, 16 is a heating element, and 17 is a leg.
２枚のガラスセラミック板１４．１４の内面の外周付近
には無機接着材１５が塗布され、これによって２枚のガ
ラスセラミック板１４．１４が強固に貼着されている。An inorganic adhesive 15 is applied near the outer periphery of the inner surfaces of the two glass ceramic plates 14.14, thereby firmly adhering the two glass ceramic plates 14.14.
またガラスセラミック板１４．１４の間には発熱体１６
が配設され、ガラスセラミッり１４．１４の下部が脚１
７によって保持されて垂直に立てられている。無機接着
材１１は、’５ｉ０２ ６８．２％、Ａｌ２Ｏ，２１，
１％、ＬｉＯ２２，９％、Ｍｇ００．５％、Ｃａ００゜
８％、Ｚｎ０ １．３％、ＴｉＯ２１，１％、Ｋ２Ｏ２
，６％、Ａｓｚｏｓ １．５％からなる結晶性のガラス
であり、耐熱温度が１４００℃、熱膨張係数がｌ０ＸＩ
Ｏ−７／”Ｃの特性を有し、また発熱体１６はニクロム
鋼を線状に加工したものである。Additionally, a heating element 16 is placed between the glass ceramic plates 14 and 14.
is arranged, and the lower part of the glass ceramic 14.14 is the leg 1.
7 and is held vertically. The inorganic adhesive 11 is '5i02 68.2%, Al2O, 21,
1%, LiO22.9%, Mg00.5%, Ca00°8%, Zn0 1.3%, TiO21.1%, K2O2
, 6%, Aszos 1.5%, has a heat resistance temperature of 1400℃ and a thermal expansion coefficient of 10XI.
It has a characteristic of O-7/''C, and the heating element 16 is formed by processing nichrome steel into a linear shape.
以上の構成からなる遠赤外線ヒーターの金属発熱体１２
に通電するとガラスセラミック板１Ｏ１１０が加熱され
、その表面から波長４〜８μｍの赤外線が効率良く放射
され、２枚のガラスセラミック板１０．１０の両側で同
時に暖房あるいは加熱が行えた。Metal heating element 12 of far infrared heater having the above configuration
When energized, the glass-ceramic plate 1O110 was heated, and infrared rays with a wavelength of 4 to 8 μm were efficiently radiated from its surface, allowing heating or heating to be performed simultaneously on both sides of the two glass-ceramic plates 10 and 10.
尚、無機接着材の耐熱温度は、接着された２枚のガラス
セラミック板が剥離する温度であり、また熱膨張係数は
熱膨張計によって測定した。The heat resistance temperature of the inorganic adhesive is the temperature at which two bonded glass ceramic plates separate, and the thermal expansion coefficient was measured using a thermal dilatometer.
［発明の効果］
以上のように本発明の赤外線ヒーターは、放射体として
遠赤外線放射率及び機械的強度が高く、熱衝撃に強いガ
ラスセラミック板を使用するため、発熱体がガラスセラ
ミックを加熱すると遠赤外線が効率良く放射され、しか
も熱衝撃によって割れることがない。[Effects of the Invention] As described above, since the infrared heater of the present invention uses a glass-ceramic plate that has high far-infrared emissivity and high mechanical strength as a radiator and is resistant to thermal shock, when the heating element heats the glass-ceramic, It emits far-infrared rays efficiently and does not break due to thermal shock.
またガラスセラミックの少なくとも片面に遠赤外線放射
率の高いセラミック層を被着することによってより広い
波長域において遠赤外線が効率良く放射され、ガラスセ
ラミック板の少なくとも片面に熱伝導率の高い層を被着
することによって放射率が迅速に加熱される。In addition, by coating at least one side of the glass ceramic with a ceramic layer with high far-infrared emissivity, far-infrared rays can be efficiently radiated in a wider wavelength range, and by coating at least one side of the glass-ceramic plate with a layer with high thermal conductivity. This causes the emissivity to heat up quickly.
さらに保持具を用いてガラスセラミック板に発熱体を取
り付けたり、２枚のガラスセラミック板の間に発熱体を
配設することによってガラスセラミック板と発熱体が自
由に収縮するので発熱体がガラスセラミック板から剥離
するという問題は解消され、しかも２枚のガラスセラミ
ック板を用いた場合は、両面から同時に効率良く遠赤外
線が放射される。Furthermore, by attaching the heating element to the glass-ceramic plate using a holder or placing the heating element between two glass-ceramic plates, the glass-ceramic plate and the heating element can freely contract, so that the heating element can be removed from the glass-ceramic plate. The problem of peeling is solved, and when two glass ceramic plates are used, far infrared rays are efficiently emitted from both sides simultaneously.
第１図は本発明の実施例１で用いたガラスセラミックの
波長２〜ｌＯμ■における黒体を１．０とした場合の赤
外線放射率を示すグラフ、第２図は実施例１で用いたガ
ラスセラミック板にビンによって発熱体を保持した遠赤
外線ヒーターの斜視図、第３図は本発明の実施例２で用
いた片面にセラミック層を被着したガラスセラミックの
波長２〜ｌＯμ−における黒体を１．０とした場合の赤
外線放射率を示すグラフ、第４図は本発明の実施例３の
遠赤外線ヒーターを一部破断した斜視図である。
第１図
１０．１４・・・ガラスセラミック板 １１・・・保持
具１２．１６・・・発熱体 １５・・・無
機接着材特許出願人 日本電気硝子株式会社
代表者 岸 １）清 作
波 長 （μｍ）
第
図
第
図
ｎ
第
図
波
長
（μｍ）
手
続
補
正
書
（方式
％式％
２、発明の名称
遠赤外線ヒーター
３、補正をする者
事件との関係Figure 1 is a graph showing the infrared emissivity of the glass-ceramic used in Example 1 of the present invention at a wavelength of 2 to 1Oμ, assuming that the black body is 1.0. Figure 2 is a graph showing the infrared emissivity of the glass ceramic used in Example 1 FIG. 3 is a perspective view of a far-infrared heater in which a heating element is held by a bottle on a ceramic plate. FIG. A graph showing the infrared emissivity when set to 1.0, and FIG. 4 is a partially cutaway perspective view of a far-infrared heater according to Example 3 of the present invention. Figure 1 10.14...Glass ceramic plate 11...Holder 12.16...Heating element 15...Inorganic adhesive patent applicant Representative of Nippon Electric Glass Co., Ltd. Kishi 1) Sakuha Kiyoshi (μm) Figure Figure n Figure Wavelength (μm) Procedural Amendment (Formula % Formula % 2, Name of Invention Far Infrared Heater 3, Relationship with the person making the amendment)
Claims (5)
〜８μｍにおいて黒体の９０％以上、熱膨張係数が−２
０〜２０×１０＾−＾７／℃、曲げ強度が１４００ｋｇ
／ｃｍ＾２以上のガラスセラミック板を用いてなること
を特徴とする遠赤外線ヒーター。(1) As a far-infrared radiator, the far-infrared emissivity is at wavelength 4
At ~8 μm, more than 90% of the black body has a thermal expansion coefficient of -2
0~20×10^-^7/℃, bending strength 1400kg
A far-infrared heater characterized by using a glass-ceramic plate with a diameter of /cm^2 or more.
９０％以上、熱膨張係数が−２０〜２０×１０＾−＾７
／℃、曲げ強度が１４００ｋｇ／ｃｍ＾２以上のガラス
セラミックからなる遠赤外線の放射体の少なくとも片面
に遠赤外線放射率の高いセラミック層を被着してなるこ
とを特徴とする遠赤外線ヒーター。(2) Far-infrared emissivity is 90% or more of a black body at wavelengths of 4 to 8 μm, and thermal expansion coefficient is -20 to 20 x 10^-^7
A far-infrared heater comprising a far-infrared radiator made of glass ceramic having a bending strength of 1,400 kg/cm^2 or more and a ceramic layer having a high far-infrared emissivity coated on at least one side of the far-infrared radiator.
９０％以上、熱膨張係数が−２０〜２０×１０＾−＾７
／℃、曲げ強度が１４００ｋｇ／ｃｍ＾２以上のガラス
セラミックからなる遠赤外線の放射体の少なくとも片面
に熱伝導率の高い金属層、セラミック層あるいはこれら
の複合材料層を被着してなることを特徴とする遠赤外線
ヒーター。(3) Far-infrared emissivity is 90% or more of a blackbody at wavelengths of 4 to 8 μm, and thermal expansion coefficient is -20 to 20 x 10^-^7
/°C, and a far-infrared radiator made of glass ceramic with a bending strength of 1400 kg/cm^2 or more, with a metal layer, a ceramic layer, or a composite material layer thereof having high thermal conductivity coated on at least one side. Features a far infrared heater.
体が配設されてなることを特徴とする遠赤外線ヒーター
。(4) A far-infrared heater characterized in that a heating element is disposed on one side of a glass ceramic plate using a protective device.
枚のガラスセラミック板が貼着され、該ガラスセラミッ
ク板の間に発熱体が配設されてなることを特徴とする遠
赤外線ヒーター。(5) By using an inorganic adhesive with excellent heat resistance and low thermal expansion,
A far-infrared heater characterized in that two glass-ceramic plates are adhered to each other, and a heating element is disposed between the glass-ceramic plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4132589A JPH02220386A (en) | 1989-02-21 | 1989-02-21 | Far infrared ray heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4132589A JPH02220386A (en) | 1989-02-21 | 1989-02-21 | Far infrared ray heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02220386A true JPH02220386A (en) | 1990-09-03 |
Family
ID=12605371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4132589A Pending JPH02220386A (en) | 1989-02-21 | 1989-02-21 | Far infrared ray heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02220386A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668960A (en) * | 1992-08-19 | 1994-03-11 | Kawai Musical Instr Mfg Co Ltd | Heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5142142A (en) * | 1974-10-05 | 1976-04-09 | Tdk Electronics Co Ltd | HATSUNET SUTAI |
| JPS5650079A (en) * | 1979-09-29 | 1981-05-07 | Matsushita Electric Industrial Co Ltd | Far infrared ray heater |
| JPS63252378A (en) * | 1987-02-21 | 1988-10-19 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Thin film heating element |
-
1989
- 1989-02-21 JP JP4132589A patent/JPH02220386A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5142142A (en) * | 1974-10-05 | 1976-04-09 | Tdk Electronics Co Ltd | HATSUNET SUTAI |
| JPS5650079A (en) * | 1979-09-29 | 1981-05-07 | Matsushita Electric Industrial Co Ltd | Far infrared ray heater |
| JPS63252378A (en) * | 1987-02-21 | 1988-10-19 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Thin film heating element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0668960A (en) * | 1992-08-19 | 1994-03-11 | Kawai Musical Instr Mfg Co Ltd | Heater |
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