JPH0289921A - Browning heat-cooking appliance - Google Patents
Browning heat-cooking applianceInfo
- Publication number
- JPH0289921A JPH0289921A JP23830188A JP23830188A JPH0289921A JP H0289921 A JPH0289921 A JP H0289921A JP 23830188 A JP23830188 A JP 23830188A JP 23830188 A JP23830188 A JP 23830188A JP H0289921 A JPH0289921 A JP H0289921A
- Authority
- JP
- Japan
- Prior art keywords
- food
- visible light
- heat
- light
- heating
- 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
- 238000010411 cooking Methods 0.000 title abstract description 6
- 235000013305 food Nutrition 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000011521 glass Substances 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 2
- 238000002425 crystallisation Methods 0.000 abstract 2
- 230000008025 crystallization Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 235000008429 bread Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004031 devitrification Methods 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は食品の表面に付く焦げ目の状態を検知して焦げ
目付は加熱を自動制御する調理器に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooking device that detects the state of browning on the surface of food and automatically controls heating to determine the browning.
従来の技術
食品の焦げ目付は加熱を自動制御する調理器として、特
公昭６１−２７６６１号公報および特公昭６１−２７６
６２号公報のような発明が知られている。Conventional technology For the browning of foods, a cooking device that automatically controls heating is disclosed in Japanese Patent Publication No. 61-27661 and Japanese Patent Publication No. 61-276.
An invention as disclosed in Japanese Patent No. 62 is known.
それら公報に開示された発明というのは被加熱物である
食品にランプ等による可視光を照射し、加熱の進行すな
わち焦げ目の発生にともなって変化する食品表面からの
反射光の強度の変化を焦げ目検知光センサーで検知し、
その変化の度合いが所定の値に到達したときに加熱を停
止させる等の制御をするというものである。食品表面の
反射率が所定の値に低下したときに加熱を停止させると
いうように言換えてもよい。The invention disclosed in these publications involves irradiating visible light from a lamp or the like onto food to be heated, and detecting changes in the intensity of reflected light from the surface of the food as the heating progresses, that is, as browning occurs. Detected by a detection light sensor,
When the degree of change reaches a predetermined value, control such as stopping heating is performed. In other words, heating may be stopped when the reflectance of the food surface falls to a predetermined value.
発明が解決しようとする課題
上述従来の技術を以って焦げ目付は加熱を自動制御しよ
うとすると、加熱中に食品が飛び敗ったり、ミスト状に
なって光源ランプ表面に付着し。Problems to be Solved by the Invention When attempts are made to automatically control heating for browning using the above-mentioned conventional technology, the food may fly off during heating or become mist-like and adhere to the surface of the light source lamp.
その付着物がさらに加熱されて炭化し、光源ランプ表面
を覆ってしまう。そのため１食品を照射する光量が弱く
１食品の反射光度が著しく低下し、焦げ目検知光センサ
ーで検知できなくなるという欠点がある。The deposits are further heated and carbonized, covering the surface of the light source lamp. Therefore, there is a drawback that the amount of light irradiating each food item is weak and the reflected light intensity of each food item is significantly reduced, making it impossible to detect it with a burnt detection optical sensor.
課題を解決するための手段
上述した課題を解決するために本発明は食品を照明する
光源ランプの機能を食品に焦げ０色を付ける発熱体にも
たせると同時に発熱素子を食品に対して耐久性の良い結
晶化耐熱ガラスで封止し、かつ特定波長の可視光が透過
するようにガラスの表面を着色する。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a heating element that burns the food with the function of a light source lamp for illuminating the food, and at the same time provides a heating element that is durable to the food. It is sealed with high-quality crystallized heat-resistant glass, and the surface of the glass is colored to allow visible light of a specific wavelength to pass through.
作用
加熱中に食品の一部やミストが発熱体に付着しても発熱
体表面が高温であるため付着物は焼失し。Even if part of the food or mist adheres to the heating element during heating, the surface of the heating element is at a high temperature, so the adhering material is burned away.
可視光の照明をさまたげることがなくなると同時に結晶
化耐熱ガラスは結晶が安定しているため強度の劣化がな
い。At the same time, crystallized heat-resistant glass does not interfere with visible light illumination, and since the crystals are stable, there is no deterioration in strength.
実施例
本発明の一実施例を図面に基づき説明すると、第１図は
オーブントースタ−の断面図である。１は加熱室で、そ
の−面に食品２を出し入れするオーブンドア３があり、
その一部にはオーブンの中をｔｉＡｍできるように耐熱
ガラスでできたオーブン窓４を取付けである。オーブン
庫内１の上下には発熱装置６を設けてあり、この発熱装
置６はタングステンフィラメントで出来た発熱素子７を
耐熱ガラス管８で封止しである。この耐熱ガラス管８に
は光の透過性が良く、加熱による失透をさけるために結
晶化石英ガラスを用いる。また発熱素子７から照射され
る可視光線のうち特定波長の光が主として透過するよう
に着色層９を耐熱ガラス管８の内面又は外面に設けであ
る。ＩＯは受光窓であり、その奥には光学ロッド１１を
設けである。この光学ロッド１１は耐熱性のあるガラス
材又は耐熱アクリル系の樹脂である。１２は光伝送体で
あり、耐熱性のあるプラスチック製のファイバーを用い
る。Embodiment One embodiment of the present invention will be explained based on the drawings. FIG. 1 is a sectional view of a toaster oven. 1 is a heating chamber, and on its negative side there is an oven door 3 for putting in and taking out food 2;
An oven window 4 made of heat-resistant glass is attached to a part of the oven so that the inside of the oven can be viewed. A heat generating device 6 is provided above and below inside the oven chamber 1, and this heat generating device 6 has a heat generating element 7 made of a tungsten filament sealed with a heat resistant glass tube 8. This heat-resistant glass tube 8 is made of crystalline quartz glass, which has good light transmittance and avoids devitrification due to heating. Further, a colored layer 9 is provided on the inner or outer surface of the heat-resistant glass tube 8 so that light of a specific wavelength among the visible light emitted from the heating element 7 is mainly transmitted. IO is a light receiving window, and an optical rod 11 is provided behind it. This optical rod 11 is made of a heat-resistant glass material or a heat-resistant acrylic resin. Reference numeral 12 denotes an optical transmission body, which uses a heat-resistant plastic fiber.
１３は受光センサーであり、ＧａＰ又はＧａＡｓＰのフ
ォトダイオードである。１４は制御装置であり。13 is a light receiving sensor, which is a GaP or GaAsP photodiode. 14 is a control device.
受光センサー１３からの出力信号をアナログ電圧とし、
さらにＡ−Ｄ変換した後デジタル信号として捕える。出
力信号は一定点の値をマイコンに記憶しておき、加熱時
間と共に出力値を比較していく。The output signal from the light receiving sensor 13 is an analog voltage,
Furthermore, after A-D conversion, it is captured as a digital signal. The value of the output signal at a certain point is stored in the microcomputer, and the output value is compared with the heating time.
比較値がある一定の値に達した時にマイコンによってリ
レーを作動させて発熱装置６の電源をＯＦＦさせるよう
にしである。When the comparison value reaches a certain value, the microcomputer operates a relay to turn off the power to the heat generating device 6.
第２図は食品２が加熱されて焦げ０色が付いた時の反射
率と加熱前の反射率の変化を示したものであるにこでは
スライスパンをグリル調理した後の反射光度を実測した
ものであるが、パンが焦げると光の反射光度は低下する
が、特に４００〜６００ｎｍの波長で大きく低下してい
る。これは可視光のうち、青から緑色の光を吸収してい
ることを示している。Figure 2 shows the reflectance when food 2 is heated and has a burnt color, and the change in reflectance before heating.In Niko, we actually measured the reflected light intensity after grilling sliced bread. However, when bread burns, the reflected light intensity decreases, especially at wavelengths of 400 to 600 nm. This indicates that it absorbs visible light from blue to green.
以上のように構成したオーブントースタ−の中に食品２
としてスライスパンを入れて電源をＯＮすると、ランプ
機能をもった発熱装置６が点灯し、可視光および赤外線
が食品２の表面に照射する。Food 2 is placed in the toaster oven configured as above.
When a slice of bread is put in and the power is turned on, the heat generating device 6 having a lamp function lights up and irradiates the surface of the food 2 with visible light and infrared rays.
その可視光の一部が反射してオーブン匝内１の上部に開
孔している受光窓１０の奥に取付けられた光学ロッド１
１を透過し、光伝送体１２を経て受光センサー１３に達
する。さらに制御装置１４で光の強度を出力信号として
捕え、デジタル信号に変換して出力値とし、加熱初期か
ら中期のある点を最大値としてマイコンに記憶しておく
。加熱時間が進むにつれて食品２の表面は焦げ始め、光
の反射光度は低下していく。この時、前記の最大値と比
較を行い、予め設定しである比較値に達した時が調理が
良好に行われた時点であるから、ここで制御装置１４の
マイコンからの命令によってリレーを作動させて発熱装
置６への電源供給をＯＦＦさせるのである。食品２の表
面からの反射光は焦げが進行するにつれて低下するが、
特に青色〜緑色の特定波長が吸収される。その吸収効率
をより大きくするために発熱装置６の表面に施しである
着色層９のフィルター効果によって、青色〜緑色の特定
波長をより多く照射するので、食品の焦げ０色を的確に
捕えることができる。発熱装置６は食品の直上に設けで
あるため、食品を照射する可視光強度が強く５オーブン
窓４が入射する外部光の影響を少なくすることが可能と
なると同時に発熱装置６の表面温度は６００〜８００℃
となるため、調理中に飛び散って付着する食品２の一部
は焼失して、いつも可視光線を透過できるようになって
いる。A part of the visible light is reflected and an optical rod 1 is attached to the back of the light receiving window 10 that is opened in the upper part of the oven casing 1.
1 and reaches the light receiving sensor 13 via the light transmitting body 12. Furthermore, the control device 14 captures the intensity of the light as an output signal, converts it into a digital signal, uses it as an output value, and stores it in the microcomputer as a maximum value at a certain point from the beginning to the middle of the heating period. As the heating time progresses, the surface of the food 2 begins to burn, and the reflected light intensity decreases. At this time, the comparison is made with the maximum value mentioned above, and when the preset comparison value is reached, the cooking has been performed satisfactorily, so the relay is activated by a command from the microcomputer of the control device 14. Then, the power supply to the heat generating device 6 is turned off. The reflected light from the surface of food 2 decreases as the burn progresses, but
In particular, specific wavelengths from blue to green are absorbed. In order to increase the absorption efficiency, the filter effect of the colored layer 9 applied to the surface of the heat generating device 6 irradiates more specific wavelengths of blue to green, making it possible to accurately capture the burnt color of food. can. Since the heating device 6 is installed directly above the food, the intensity of the visible light that irradiates the food is strong, and the oven window 4 can reduce the influence of external light incident on the food.At the same time, the surface temperature of the heating device 6 is 600° ~800℃
Therefore, part of the food 2 that scatters and adheres during cooking is burned away, and visible light can always pass through.
耐熱ガラス管８に非結晶性の石英ガラスを用いた場合は
、食品２中に含まれる調味料特にグルタミンはナトリウ
ムのようなものが付着して焼失する時にフリーのナトリ
ウムイオンが発生し、高温度に加熱された石英ガラスと
固溶反応を起こして石英ガラスの失透を起し、機械的強
度が著しく低下し１割れ易くなる。これを防止するため
に予め結晶化させておき、ナトリウムイオンとの固溶反
・応が起こらないようにする。When non-crystalline quartz glass is used for the heat-resistant glass tube 8, free sodium ions are generated when the seasonings contained in the food 2, especially glutamine, are attached and burnt out, resulting in high temperatures. A solid solution reaction occurs with heated quartz glass, causing devitrification of the quartz glass, resulting in a significant decrease in mechanical strength and a tendency to crack. To prevent this, crystallize it in advance so that solid solution reaction with sodium ions does not occur.
発明の効果
以上本発明によれば１発熱素子を結晶化ガラスで封止し
たランプ状発熱体を使用しているため。Effects of the Invention According to the present invention, a lamp-shaped heating element in which one heating element is sealed with crystallized glass is used.
食品が加熱中に飛び散って付着しても高温度で加熱され
て焼失し、可視光の照明手段として性能が低下すること
なく、また食品中に含まれるナトリウムイオンの作用に
よって失透や機械的強度の低下が起らない、さらに結晶
化耐熱ガラスの内面又は外面に可視光のうち特定波長を
透過する着色層を設けであるので、焦げ目検知の光セン
サーが的確に作動するなどの効果を有する。Even if the food scatters and adheres to the food during heating, it will be heated at high temperatures and burnt out, and its performance as a means of visible light illumination will not deteriorate, and the action of sodium ions contained in the food will prevent devitrification and mechanical strength. Further, since the inner or outer surface of the crystallized heat-resistant glass is provided with a colored layer that transmits a specific wavelength of visible light, it has the effect that an optical sensor for detecting burnt spots can operate accurately.
第１図は本発明の一実施例であるオーブントースタ−の
縦断面図、第２図は反射光の反射率の変化を説明する図
である。
１・・・加熱室、 ２・・・食品。
６・・・発熱装置 ８・・・耐熱ガラス管、１３
・・・受光センサー、 １４・・・制御装置。
出原人 日立熱器具株式会社FIG. 1 is a longitudinal sectional view of a toaster oven which is an embodiment of the present invention, and FIG. 2 is a diagram illustrating changes in reflectance of reflected light. 1...Heating chamber, 2...Food. 6... Heat generating device 8... Heat resistant glass tube, 13
...Light receiving sensor, 14...Control device. Hitachi Thermal Appliances Co., Ltd.
Claims (1)
目の付くまで加熱するためのものであって可視光放射量
の割合を比較的増大させた着色結晶化耐熱ガラス管（８
）を用いた少なくとも１基のランプ状の発熱体と可視光
放射量の割合を前記ランプ状発熱体に比べて低くした発
熱体との組み合わせで構成した発熱装置（６）、（６）
と、前記発熱装置のうち前記着色結晶化耐熱ガラス管の
ランプ状発熱体によって照明されて前記食品の表面から
反射してくる反射光を検知する受光センサー（１３）と
、この受光センサーの信号に基づいて前記発熱体を制御
する制御装置（１４）とで構成したことを特徴とする焦
げ目付け加熱調理器。A heating chamber (1) for storing food (2), and a colored crystallized heat-resistant glass tube (8) for heating the food until browned and having a relatively increased proportion of visible light radiation.
) and a heating element with a lower visible light emission ratio than the lamp-shaped heating element (6), (6)
a light-receiving sensor (13) that detects the reflected light illuminated by the lamp-shaped heating element of the colored crystallized heat-resistant glass tube and reflected from the surface of the food in the heat-generating device; A browning heating cooker characterized by comprising: a control device (14) that controls the heating element based on the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23830188A JPH0289921A (en) | 1988-09-22 | 1988-09-22 | Browning heat-cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23830188A JPH0289921A (en) | 1988-09-22 | 1988-09-22 | Browning heat-cooking appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0289921A true JPH0289921A (en) | 1990-03-29 |
Family
ID=17028166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23830188A Pending JPH0289921A (en) | 1988-09-22 | 1988-09-22 | Browning heat-cooking appliance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0289921A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517005A (en) * | 1988-05-19 | 1996-05-14 | Quadlux, Inc. | Visible light and infra-red cooking apparatus |
| JP2007261670A (en) * | 2006-03-29 | 2007-10-11 | Dainippon Printing Co Ltd | One-touch opening/closing container |
| JP5666040B1 (en) * | 2014-04-01 | 2015-02-04 | アイリスオーヤマ株式会社 | Cooker |
| JP2015145778A (en) * | 2014-11-25 | 2015-08-13 | アイリスオーヤマ株式会社 | heating cooker |
-
1988
- 1988-09-22 JP JP23830188A patent/JPH0289921A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517005A (en) * | 1988-05-19 | 1996-05-14 | Quadlux, Inc. | Visible light and infra-red cooking apparatus |
| USRE36724E (en) * | 1988-05-19 | 2000-06-06 | Quadlux, Inc. | Visible light and infra-red cooking apparatus |
| JP2007261670A (en) * | 2006-03-29 | 2007-10-11 | Dainippon Printing Co Ltd | One-touch opening/closing container |
| JP5666040B1 (en) * | 2014-04-01 | 2015-02-04 | アイリスオーヤマ株式会社 | Cooker |
| JP2015145778A (en) * | 2014-11-25 | 2015-08-13 | アイリスオーヤマ株式会社 | heating cooker |
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