JP2002001869A - Glass having anti-fogging function and method for heating the same - Google Patents
Glass having anti-fogging function and method for heating the sameInfo
- Publication number
- JP2002001869A JP2002001869A JP2000186596A JP2000186596A JP2002001869A JP 2002001869 A JP2002001869 A JP 2002001869A JP 2000186596 A JP2000186596 A JP 2000186596A JP 2000186596 A JP2000186596 A JP 2000186596A JP 2002001869 A JP2002001869 A JP 2002001869A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- thin film
- heating
- heated
- transmission line
- 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.)
- Withdrawn
Links
Landscapes
- Refrigerator Housings (AREA)
- Laminated Bodies (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、湿気などにより曇
りを生じ易い環境で用いても、曇りを生じない機能を有
するガラスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass having a function of preventing fogging even when used in an environment where fogging easily occurs due to moisture or the like.
【０００２】[0002]
【従来の技術】近年の住宅においては、窓枠その他の建
具にアルミニウムなどの金属製品が多用され、しかもシ
ール性の高いパッキンが使用されていて気密性が高いた
め、冬季などの曇りや結露が問題となっている。また、
近年、急増しているコンビニエンスストアにおいては、
食品を大型の冷凍庫や冷蔵庫に陳列して販売していて、
その扉は、内部を視認できるように透明なガラスとなっ
ている。この場合も、ガラスの両面に２０℃以上の温度
差を生じることがあるため、必然的に曇りや結露が生じ
る。2. Description of the Related Art In recent homes, metal products such as aluminum are frequently used for window frames and other fittings, and packing with high sealing properties is used to provide high airtightness. It is a problem. Also,
In convenience stores, which have been increasing rapidly in recent years,
Food is displayed in large freezers and refrigerators for sale.
The door is made of transparent glass so that the inside can be seen. Also in this case, since a temperature difference of 20 ° C. or more may be generated between both surfaces of the glass, fogging or dew is inevitably generated.
【０００３】曇りや結露の問題は、住宅においては、結
露する窓枠周辺の壁にカビを生じさせたり、コンクリー
トに水分が沁み込んで、内部の鉄筋を腐食させたりす
る。これを防止するには、例えば窓枠の場合では、間に
断熱材を挟んだ二重構造にするなどの対策があるが、高
価なものにならざるを得ない。[0003] The problem of fogging and condensation is that in a house, mold is formed on the wall around the window frame where condensation occurs, and moisture penetrates into concrete and corrodes the internal reinforcing steel. In order to prevent this, for example, in the case of a window frame, there is a countermeasure such as a double structure with a heat insulating material interposed therebetween, but it is unavoidably expensive.
【０００４】また、コンビニエンスストアにおいては、
食品の冷凍庫や冷蔵庫がそのまま陳列ケースとなってい
るため、曇りや結露は冷凍庫の機能を大幅に減殺する結
果となる。この場合の対策は、扉を頻繁に開閉するた
め、住宅の場合のように二重構造としたのでは、重量が
増加して不都合を生じる。In a convenience store,
As food freezers and refrigerators remain display cases, fogging and condensation can significantly reduce the function of the freezer. As a countermeasure in this case, since the door is frequently opened and closed, if a double structure is used as in a house, the weight increases and inconvenience occurs.
【０００５】このため、例えば電熱線を埋め込んだり、
透明で導電性を有するインジウムとスズの酸化物（ＩＴ
Ｏ）の薄膜を表面に設けたりして、電熱で曇りや結露を
防止する方法がある。しかし、この場合は、電気を供給
するためのリード線などを取り付ける必要があり、構造
を複雑なものにしてしまい、しかも頻繁に開閉するため
配線の切断などの故障が頻発する可能性がある。For this reason, for example, a heating wire is embedded,
Transparent and conductive oxides of indium and tin (IT
There is a method of preventing clouding and dew condensation by electric heating by providing a thin film of O) on the surface. However, in this case, it is necessary to attach a lead wire or the like for supplying electricity, which complicates the structure, and frequently opens and closes, so there is a possibility that failure such as disconnection of the wiring frequently occurs.
【０００６】[0006]
【発明が解決しようとする課題】そこで、本発明の課題
は、前記の問題に対処するため、比較的、大面積を有す
るガラスに、軽量で、しかも配線などの不要な、曇りや
結露を防止する機能を付与することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a glass having a relatively large area, which is light in weight and prevents unnecessary fogging and condensation, such as wiring, in order to solve the above-mentioned problems. The purpose is to provide a function to perform.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、先に半導
体素子や電気回路から発生する不要輻射を抑制する効果
を発現する薄膜を提案している。この薄膜は、磁性体の
磁気損失を利用したもので、不要輻射を熱エネルギーに
変換する機能を具備している。本発明者らは、この機能
を発熱素子として利用することを検討した結果、本発明
をなしたものである。The present inventors have previously proposed a thin film having an effect of suppressing unnecessary radiation generated from a semiconductor element or an electric circuit. This thin film utilizes the magnetic loss of a magnetic substance, and has a function of converting unnecessary radiation into heat energy. The present inventors have studied the use of this function as a heating element, and have made the present invention.
【０００８】即ち、本発明は、Ｆｅ、Ｃｏ、Ｎｉのいず
れか、もしくはそれらの混合物からなる第１の相と、前
記以外の元素を少なくとも１種以上含む絶縁体からなる
第２の相により構成される磁気損失材料の薄膜を、表面
及び裏面の一方もしくは両方の少なくとも一部に形成し
たことを特徴とするガラスである。That is, the present invention comprises a first phase made of any one of Fe, Co, and Ni, or a mixture thereof, and a second phase made of an insulator containing at least one or more other elements. Wherein the thin film of the magnetic loss material is formed on at least a part of one or both of the front surface and the back surface.
【０００９】また、本発明は、前記のガラスにおいて、
前記磁気損失材料の薄膜は、前記第１の相が前記第２の
相からなる連続相に分散されてなることを特徴とするガ
ラスである。Further, the present invention provides the above glass,
The thin film of the magnetic loss material is glass, wherein the first phase is dispersed in a continuous phase including the second phase.
【００１０】また、本発明は、前記のガラスにおいて、
前記薄膜の近傍に配置された発振器により、前記薄膜を
発熱させることを特徴とするガラスである。Further, the present invention provides the above glass,
The glass is characterized in that the thin film is heated by an oscillator arranged near the thin film.
【００１１】また、本発明は、前記のガラスにおいて、
前記薄膜に近接して配置された伝送線路、及び前記伝送
線路に接続された電源により、前記薄膜を発熱させるこ
とを特徴とするガラスである。Further, the present invention provides the above glass,
The glass is characterized in that the thin film is heated by a transmission line arranged close to the thin film and a power supply connected to the transmission line.
【００１２】また、本発明は、前記のいずれかに記載の
ガラスを、前記ガラスの近傍に配置された発振器を用い
て、発熱させることを特徴とするガラスの加熱方法であ
る。Further, the present invention provides a method for heating glass, wherein the glass according to any one of the above is heated using an oscillator arranged near the glass.
【００１３】また、本発明は、前記のガラスを、前記薄
膜に近接して配置された伝送線路、及び前記伝送線路に
接続された電源を用いて、発熱させることを特徴とする
ガラスの加熱方法である。Further, the present invention provides a method for heating glass, wherein the glass is heated using a transmission line arranged close to the thin film and a power supply connected to the transmission line. It is.
【００１４】[0014]
【作用】本発明によるガラスは、表面の少なくとも一部
に、磁気損失材料の薄膜を設けてあるが、この磁気損失
材料は、前記のように特定の周波数の電磁波を熱エネル
ギーに変換する機能を具備しているため、電気エネルギ
ーを供給するための配線を設けなくとも発熱させること
ができる。しかも、薄膜であるため、ガラスの重量を増
加させることがない。The glass according to the present invention is provided with a thin film of a magnetic loss material on at least a part of its surface. The magnetic loss material has a function of converting electromagnetic waves of a specific frequency into heat energy as described above. Since it is provided, heat can be generated without providing a wiring for supplying electric energy. Moreover, since it is a thin film, the weight of the glass does not increase.
【００１５】そして、本発明に使用する磁気損失材料の
薄膜は、スパッタリング法で製膜され、形状が複雑で直
接表面に製膜するのが困難な場合は、別途製膜した薄膜
を転写したり、薄膜を粉末にして塗布したりすることで
形成できる。また、本発明においては、充分な発熱量を
確保できれば、前記磁気損失材料の薄膜を、必ずしもガ
ラス表面の全面に設ける必要がなく、格子状、縞状に設
けてもよい。The thin film of the magnetic loss material used in the present invention is formed by a sputtering method. If it is difficult to form a film directly on the surface due to its complicated shape, a separately formed thin film may be transferred. Alternatively, it can be formed by applying a thin film as a powder. In the present invention, as long as a sufficient amount of heat can be secured, the thin film of the magnetic loss material does not necessarily need to be provided on the entire surface of the glass, but may be provided in a lattice shape or a stripe shape.
【００１６】前記磁気損失材料の薄膜を加熱するには、
薄膜の近傍に発振器を配置してもよく、使用条件により
線路の配線が可能であれば、薄膜近傍に高周波を輻射す
る伝送線路を配置することで、効率を向上することもで
きる。To heat the thin film of the magnetic loss material,
An oscillator may be arranged near the thin film, and if wiring is possible depending on the use conditions, efficiency can be improved by arranging a transmission line that radiates high frequency near the thin film.
【００１７】[0017]
【発明の実施の形態】以下に、具体的な例に基づき、本
発明の実施の形態について説明する。Embodiments of the present invention will be described below with reference to specific examples.
【００１８】円盤状のＦｅとチップ状のＡｌ２Ｏ３をタ
ーゲットとして、スパッタリング法にて、幅６００ｍｍ
長さ１６００ｍｍのガラス板に、厚さ５μｍの薄膜を形
成した。表１には、この製膜条件を示した。Using a disc-shaped Fe and a chip-shaped Al 2 O 3 as targets, a 600 mm wide sputtering method
A 5 μm thick thin film was formed on a 1600 mm long glass plate. Table 1 shows the film forming conditions.
【００１９】[0019]
【表１】 [Table 1]
【００２０】この薄膜の組成を蛍光Ｘ線分析したとこ
ろ、Ｆｅ７２Ａｌ１１Ｏ１７であった。また、インピー
ダンスの測定により、磁気損失項のμ″の周波数特性を
調べたところ、共鳴周波数は７００ＭＨｚ付近であっ
た。When the composition of this thin film was analyzed by X-ray fluorescence, it was found to be Fe 72 Al 11 O 17 . Further, when the frequency characteristic of μ ″ of the magnetic loss term was examined by measuring the impedance, the resonance frequency was around 700 MHz.
【００２１】図１は、このガラスを食品陳列用の冷凍庫
に使用した例を示したものである。この図において、１
は前記の磁気損失材料の薄膜を表面に設けたガラスであ
り、２は高周波発振器である。この高周波発振器は、外
部に影響を及ぼさないように、冷凍庫内部に取り付けて
もよい。FIG. 1 shows an example in which this glass is used for a freezer for food display. In this figure, 1
Is a glass provided with a thin film of the above magnetic loss material on the surface, and 2 is a high frequency oscillator. This high-frequency oscillator may be mounted inside the freezer so as not to affect the outside.
【００２２】そして、高周波発振器２から７００ＭＨｚ
の高周波を発振して薄膜を加熱したところ、冷凍庫内部
を−１５℃まで降温させても、ガラスに曇りはまったく
生じなかった。また、前記薄膜の近傍に高周波電源に接
続した伝送線路を配置し、同様に加熱を行ってみたとこ
ろ、まったく同様の結果が得られた。Then, from the high frequency oscillator 2 to 700 MHz
When the thin film was heated by oscillating the high frequency, no fogging occurred in the glass even when the inside of the freezer was cooled to -15 ° C. When a transmission line connected to a high-frequency power supply was arranged near the thin film and heating was performed in the same manner, exactly the same results were obtained.
【００２３】[0023]
【発明の効果】以上に説明したように、本発明によれ
ば、高効率で加熱できる曇り防止機能を有するガラスを
得ることができる。しかも、発熱体が薄膜で、かつ配線
などが不要であるため、曇り防止機能を有するガラスの
用途を拡大することができる。As described above, according to the present invention, it is possible to obtain a glass having a fogging prevention function which can be heated with high efficiency. In addition, since the heating element is a thin film and no wiring or the like is required, the use of glass having a fogging prevention function can be expanded.
【００２４】なお、前記の発明の実施の形態において
は、薄膜の形成方法として、スパッタリング法を挙げた
が、これ以外の方法、例えば、ガスデポジション法、Ｃ
ＶＤ法、蒸着法なども適用できる。酸化物の連続相にＦ
ｅ、Ｃｏ、Ｎｉのいずれかを分散させた構造とするに
は、適切な条件設定が必要となる。In the embodiment of the present invention, a sputtering method is described as a method of forming a thin film. However, other methods, such as a gas deposition method and a C
A VD method, an evaporation method, and the like can also be applied. F in the continuous phase of the oxide
In order to obtain a structure in which any one of e, Co, and Ni is dispersed, it is necessary to set appropriate conditions.
【００２５】更に、前記の発明の実施の形態において
は、Ｆｅを用いた例を挙げたが、ＣｏやＮｉを用いた
り、それらを混合して用いたりしても、同様の効果が得
られることは勿論である。Further, in the embodiment of the present invention, an example using Fe has been described, but the same effect can be obtained by using Co or Ni, or by mixing them. Of course.
【図１】本発明によるガラスを食品陳列用の冷凍庫に使
用した例を示す図。FIG. 1 is a view showing an example in which the glass according to the present invention is used for a freezer for food display.
１ 本発明のガラス ２ 高周波発振器 DESCRIPTION OF SYMBOLS 1 The glass of this invention 2 High frequency oscillator
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3L102 JA01 JA03 KA06 KE11 4F100 AA01B AA01C AA19 AB02B AB02C AB15B AB15C AB16B AB16C AG00A BA02 BA03 BA06 EH66 GB07 GB71 GB81 JG04B JG04C JG06B JG06C JJ06B JJ06C JL07 JM02B JM02C 4G059 AA01 AC21 EA07 EA18 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L102 JA01 JA03 KA06 KE11 4F100 AA01B AA01C AA19 AB02B AB02C AB15B AB15C AB16B AB16C AG00A BA02 BA03 BA06 EH66 GB07 GB71 GB81 JG04B JG04C JG06B JG06C02B07 J01 J02A
Claims (6)
それらの混合物からなる第１の相と、前記以外の元素を
少なくとも１種以上含む絶縁体からなる第２の相により
構成される磁気損失材料の薄膜を、表面及び裏面の一方
もしくは両方の少なくとも一部に形成したことを特徴と
するガラス。1. A magnetic loss composed of a first phase made of any one of Fe, Co, and Ni, or a mixture thereof, and a second phase made of an insulator containing at least one or more other elements. A glass characterized in that a thin film of a material is formed on at least a part of one or both of a front surface and a back surface.
磁気損失材料の薄膜は、前記第１の相が前記第２の相か
らなる連続相に分散されてなることを特徴とするガラ
ス。2. The glass according to claim 1, wherein the thin film of the magnetic loss material has the first phase dispersed in a continuous phase composed of the second phase.
載のガラスにおいて、前記薄膜の近傍に配置された発振
器により、前記薄膜を発熱させることを特徴とするガラ
ス。3. The glass according to claim 1, wherein the thin film is heated by an oscillator disposed near the thin film.
載のガラスにおいて、前記薄膜に近接して配置された伝
送線路、及び前記伝送線路に接続された電源により、前
記薄膜を発熱させることを特徴とするガラス。4. The glass according to claim 1, wherein the thin film is heated by a transmission line disposed close to the thin film, and a power supply connected to the transmission line. Characterized by glass.
載のガラスを、前記ガラスの近傍に配置された発振器を
用いて、発熱させることを特徴とするガラスの加熱方
法。5. A method for heating glass, wherein the glass according to claim 1 or 2 is heated by using an oscillator disposed near the glass.
載のガラスを、前記薄膜に近接して配置された伝送線
路、及び前記伝送線路に接続された電源を用いて、発熱
させることを特徴とするガラスの加熱方法。6. The method according to claim 1, wherein the glass according to claim 1 or 2 is heated using a transmission line disposed close to the thin film and a power supply connected to the transmission line. Characteristic glass heating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000186596A JP2002001869A (en) | 2000-06-21 | 2000-06-21 | Glass having anti-fogging function and method for heating the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000186596A JP2002001869A (en) | 2000-06-21 | 2000-06-21 | Glass having anti-fogging function and method for heating the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002001869A true JP2002001869A (en) | 2002-01-08 |
Family
ID=18686729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000186596A Withdrawn JP2002001869A (en) | 2000-06-21 | 2000-06-21 | Glass having anti-fogging function and method for heating the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002001869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8221846B2 (en) | 2002-05-02 | 2012-07-17 | Hussmann Corporation | Merchandisers having anti-fog coatings and methods for making the same |
| US8534006B2 (en) | 2002-05-02 | 2013-09-17 | Hussmann Corporation | Merchandisers having anti-fog coatings and methods for making the same |
-
2000
- 2000-06-21 JP JP2000186596A patent/JP2002001869A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8221846B2 (en) | 2002-05-02 | 2012-07-17 | Hussmann Corporation | Merchandisers having anti-fog coatings and methods for making the same |
| US8534006B2 (en) | 2002-05-02 | 2013-09-17 | Hussmann Corporation | Merchandisers having anti-fog coatings and methods for making the same |
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