JPH04188594A - Microwave heat emitting element - Google Patents
Microwave heat emitting elementInfo
- Publication number
- JPH04188594A JPH04188594A JP31905490A JP31905490A JPH04188594A JP H04188594 A JPH04188594 A JP H04188594A JP 31905490 A JP31905490 A JP 31905490A JP 31905490 A JP31905490 A JP 31905490A JP H04188594 A JPH04188594 A JP H04188594A
- Authority
- JP
- Japan
- Prior art keywords
- dielectric loss
- microwave
- loss material
- heat emitting
- electroconductive
- 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
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000011810 insulating material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 8
- 239000010935 stainless steel Substances 0.000 abstract description 8
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 229920002050 silicone resin Polymers 0.000 abstract description 3
- 239000006104 solid solution Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-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
- 230000006866 deterioration Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Electric Ovens (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、マイクロ波を吸収して発熱するマイクロ波発
熱体に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a microwave heating element that generates heat by absorbing microwaves.
従来の技術
電子レンジはマイクロ波により、短時間に効率良く食品
を加熱することができるが、食品に焦げ目をイ寸けるこ
とができない、そのため、マイクロ波を吸収して発熱す
る焦げ目付皿と称されるマイクロ波発熱体を設↓する必
要があった。Conventional technology Microwave ovens can heat food efficiently in a short time using microwaves, but they cannot completely brown the food, so they are called browning dishes that absorb microwaves and generate heat. It was necessary to install a microwave heating element.
従来のマイクロ波発熱体の基本構造は第３図に示したよ
うに、食品１０と接するアルミニウムなどの金属板１１
と、その金属板１１に接してマイクロ波吸収体１２が配
置されていた。マイクロ波吸収体１２としては、フェラ
イトをシリコンゴムなどに分散した磁性損を利用したも
のである。The basic structure of a conventional microwave heating element is as shown in FIG.
A microwave absorber 12 was placed in contact with the metal plate 11. The microwave absorber 12 utilizes magnetic loss obtained by dispersing ferrite in silicone rubber or the like.
発明が解決しようとする課題
しかしながら、従来のマイクロ波発熱体は繰り返し使用
すると、マイクロ波吸収体１２にクラックが発生して破
損したり、食品から出る水葬気、油汚れにより浸食され
る等の問題があった。本発明はかかる従来の問題を解決
し、電子レンジ等の調理器内で繰り返し使用しても上記
のような問題の発生しないマイクロ波発熱体の提供を目
的とする。Problems to be Solved by the Invention However, when conventional microwave heating elements are used repeatedly, there are problems such as cracks occurring in the microwave absorber 12 and damage, and corrosion due to water vapor from food and oil stains. was there. The present invention aims to solve such conventional problems and provide a microwave heating element that does not cause the above-mentioned problems even when used repeatedly in a cooking appliance such as a microwave oven.
課題を解決するための手段
上記の目的を達成するために、本発明のマイクロ波発熱
体は、２枚の導電性シートの間に誘電損失材を配置する
か、誘電損失材と誘電性断熱材を配置した構成とする。Means for Solving the Problems In order to achieve the above object, the microwave heating element of the present invention includes a dielectric loss material disposed between two conductive sheets, or a dielectric loss material and a dielectric heat insulating material. The configuration is as follows.
作用
本発明は上記構成により、マイクロ波吸収体であるｇｔ
ｔ＊失材の大部分が導電性シートで覆われるため水謂気
、油汚れにより浸食される面積が大幅に低減するととも
に、２枚の導電性シートの端部より入射してくるマイク
ロ波は誘ｉＩｔ損失材に吸収されるまで導電性シート間
で多重反射され、誘電損失材が効率良くマイクロ波を吸
収する。Effect The present invention has the above-mentioned configuration, and the microwave absorber gt
t* Since most of the missing wood is covered with conductive sheets, the area that is eroded by water and oil stains is greatly reduced, and the microwaves that enter from the edges of the two conductive sheets are The microwave is reflected multiple times between the conductive sheets until it is absorbed by the dielectric loss material, and the dielectric loss material efficiently absorbs the microwave.
実施例
以下、本発明の一実施例について第１図を用いて説明す
る。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG.
同図において１は誘電損失材であり、炭化珪素−炭化チ
タン固溶体繊維ｌ−チヲップ〔宇部興産株製、商品名“
チラノ繊維”、比誘電率１０、誘電正接１〕をシリコー
ン樹脂中に１０重量％混練したものを加熱成型した３■
厚みのシート状成型物である。そして、２は導電性シー
トであり、厚み０．５−のステンレスプレートである。In the figure, 1 is a dielectric loss material, silicon carbide-titanium carbide solid solution fiber L-Chip [manufactured by Ube Industries, Ltd., trade name:
3■ which was heat-molded by kneading 10% by weight of Tyranno fiber, dielectric constant 10, dielectric loss tangent 1] into silicone resin.
It is a thick sheet-like molded product. 2 is a conductive sheet, which is a stainless steel plate with a thickness of 0.5 mm.
このマイクロ波発熱体を電子レンジ庫内に入れてマイク
ロ波を４分間照射し、その直後の導電性シートの表面温
度を測定した。This microwave heating element was placed in a microwave oven and microwave was irradiated for 4 minutes, and the surface temperature of the conductive sheet was measured immediately after that.
なお、１枚のステンレスプレートに３ｍ厚みのフェライ
ト組成物（磁性損利用）を貼付した従来例、比較例とし
て、１枚のステンレスプレートに誘電損失材を貼付した
比較例Ａ、２枚のステンレスプレート間にフェライト組
成物を介在させた比較例Ｂを実験に供した。In addition, there is a conventional example in which a 3m thick ferrite composition (using magnetic loss) is attached to one stainless steel plate, a comparative example A in which a dielectric loss material is attached to one stainless steel plate, and two stainless steel plates. Comparative Example B, in which a ferrite composition was interposed between the two, was subjected to an experiment.
結果を第１表に示した。The results are shown in Table 1.
第１表
この結果から明らかなように、本発明の実施例によれば
、従来例より良好な発熱特性を有する。Table 1 As is clear from the results, the examples of the present invention have better heat generation characteristics than the conventional examples.
そして、この特性は２枚のステンレスプレートの間に誘
電損失材を配置することにより得られることがわかる。It can be seen that this characteristic can be obtained by disposing a dielectric loss material between two stainless steel plates.
すなわち、１枚のステンレスプレートに誘電損失材を貼
付した比較例Ａ、［性損を利用した比較例Ｂでは特性低
下をおこすことがわか第２図は、本発明における他の実
施例であり、第１の実施例と異なる点は、厚み２１１１
１の多孔質アルミナからなる誘電性断熱材３を配置した
点であり、これにより食品１０の加熱速度が速くなる０
本実施例の２種類のマイクロ波発熱体を電子レンジ庫内
に入れて繰り返し使用したところ１０００回使用しても
発熱特性の劣化は認められなかった。これに対して従来
例は３００回使用すると発熱特性の劣化が認められた。That is, Comparative Example A in which a dielectric loss material was attached to a single stainless steel plate, and Comparative Example B in which a dielectric loss material was applied, showed that the characteristics deteriorated. FIG. 2 shows other embodiments of the present invention. The difference from the first embodiment is that the thickness is 2111
1 is provided with a dielectric heat insulating material 3 made of porous alumina, which increases the heating rate of the food 10.
When the two types of microwave heating elements of this example were placed in a microwave oven and used repeatedly, no deterioration of the heating characteristics was observed even after 1000 uses. On the other hand, in the conventional example, deterioration in heat generation characteristics was observed after 300 uses.
なお、実施例においては、誘電損失材として炭化珪素−
炭化チタン固溶体繊維をシリコーン樹脂中に分散して加
熱成型したものを用いたが、構造補強材（例えば、紙、
フィルム、不織布、織布、合成樹脂シート、セラミック
成型体、発泡体）に分散しても良い、また、導電性シー
トとしてステンレスプレートを用いたが、合成樹脂の表
面に導電性表面処理をしたものでも良い、さらに、誘電
性断熱材としては多孔質アルミナ以外にシリコン発泡体
、真空断熱材等を用いても同様の効果が得られる。In addition, in the examples, silicon carbide is used as the dielectric loss material.
Titanium carbide solid solution fibers dispersed in silicone resin and heat molded were used, but structural reinforcing materials (e.g. paper,
It may be dispersed in films, non-woven fabrics, woven fabrics, synthetic resin sheets, ceramic moldings, foams), and a stainless steel plate was used as the conductive sheet, but the synthetic resin surface was treated with conductive surface treatment. Furthermore, the same effect can be obtained by using silicon foam, vacuum heat insulating material, etc. other than porous alumina as the dielectric heat insulating material.
発明の効果
以上のように本発明によれば、ｔｓＮ損失材の特性を利
用した、発熱温度が高く、信転性の高いマイクロ波発熱
体が得られる。Effects of the Invention As described above, according to the present invention, it is possible to obtain a microwave heating element that utilizes the characteristics of the tsN loss material, has a high heat generation temperature, and has high reliability.
第１図は本発明のマイクロ波発熱体の一実施例の断面図
、第２図は他の実施例の断面図、第３図は従来のマイク
ロ波発熱体の断面図である。
１・・・・・・誘電損失材、２・・・・・・導電性シー
ト、３・・・・・・誘電性断熱材。FIG. 1 is a sectional view of one embodiment of the microwave heating element of the present invention, FIG. 2 is a sectional view of another embodiment, and FIG. 3 is a sectional view of a conventional microwave heating element. 1... Dielectric loss material, 2... Conductive sheet, 3... Dielectric heat insulating material.
Claims (2)
マイクロ波発熱体。(1) A microwave heating element in which a dielectric loss material is placed between two conductive sheets.
熱材を配置したマイクロ波発熱体。(2) A microwave heating element in which a dielectric loss material and a dielectric heat insulating material are arranged between two conductive sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31905490A JPH04188594A (en) | 1990-11-21 | 1990-11-21 | Microwave heat emitting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31905490A JPH04188594A (en) | 1990-11-21 | 1990-11-21 | Microwave heat emitting element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04188594A true JPH04188594A (en) | 1992-07-07 |
Family
ID=18105991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31905490A Pending JPH04188594A (en) | 1990-11-21 | 1990-11-21 | Microwave heat emitting element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04188594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088094A1 (en) * | 2021-11-16 | 2023-05-25 | 深圳麦时科技有限公司 | Aerosol generating device |
-
1990
- 1990-11-21 JP JP31905490A patent/JPH04188594A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088094A1 (en) * | 2021-11-16 | 2023-05-25 | 深圳麦时科技有限公司 | Aerosol generating device |
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