JPS6128967Y2 - - Google Patents
Info
- Publication number
- JPS6128967Y2 JPS6128967Y2 JP1981182626U JP18262681U JPS6128967Y2 JP S6128967 Y2 JPS6128967 Y2 JP S6128967Y2 JP 1981182626 U JP1981182626 U JP 1981182626U JP 18262681 U JP18262681 U JP 18262681U JP S6128967 Y2 JPS6128967 Y2 JP S6128967Y2
- Authority
- JP
- Japan
- Prior art keywords
- food
- cooked
- temperature
- tray
- heated
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 27
- 238000010411 cooking Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Radiation Pyrometers (AREA)
- Electric Ovens (AREA)
- Electric Stoves And Ranges (AREA)
Description
【考案の詳細な説明】
この考案は、検出部の視野範囲外のトレイ上に
被調理物が載置された場合に、被調理物が過度に
加熱されて損われることを防止するとともに、過
熱による被調理物の突沸等により調理庫内が汚れ
ることを防止するようにした電子レンジに関す
る。[Detailed description of the invention] This invention prevents the food from being overheated and damaged when the food is placed on a tray outside the field of view of the detection unit, and prevents the food from being overheated. The present invention relates to a microwave oven that prevents the inside of a cooking chamber from becoming dirty due to bumping of objects to be cooked.
一般に、調理庫内の被調理物から放射される赤
外線を検出して自動的に加熱制御を行なう検出部
を備えた電子レンジには、調理庫の上部に設けら
れた検出部の赤外線センサにより、調理庫内の被
調理物から放射される赤外線を検知し、被調理物
の温度を検出して所定の調理設定温度と比較し、
被調理物の温度が前記設定温度と比較し、被調理
物の温度が前記設定温度より高い場合にマイクロ
波発生装置の出力を停止させ、自動的に加熱制御
を行なつている。しかし、被調理物が調理庫内の
トレイの中央部に載置されることが多いことか
ら、赤外線センサが通常、調理庫の上部中央に配
設されるため、当該赤外線センサの視野範囲は、
被調理物が載置されるトレイ表面の中央付近の一
部に限られ、被調理物が赤外線センサの視野範囲
外にあるときには、被調理物からの赤外線を検知
できず、被調理物の温度を検出することができな
い。 Generally, a microwave oven equipped with a detection section that detects infrared rays emitted from the food to be cooked in the cooking chamber and automatically controls heating uses an infrared sensor in the detection section installed at the top of the cooking chamber. Detects infrared rays emitted from the food in the cooking cabinet, detects the temperature of the food, and compares it with a predetermined cooking temperature.
The temperature of the food to be cooked is compared with the set temperature, and when the temperature of the food to be cooked is higher than the set temperature, the output of the microwave generator is stopped and heating control is automatically performed. However, since the food to be cooked is often placed in the center of the tray inside the cooking cabinet, the infrared sensor is usually placed in the upper center of the cooking cabinet, so the field of view of the infrared sensor is
If the food is limited to a part near the center of the tray surface on which the food is placed, and the food is out of the field of view of the infrared sensor, the infrared rays from the food cannot be detected, and the temperature of the food may vary. cannot be detected.
したがつて、トレイの中央部に被調理物が載置
されて加熱される場合を正常な使用状態とする
と、被調理物がトレイの周辺部、すなわち赤外線
センサの視野範囲外のトレイ上に載置されて加熱
されるような正常でない使用状態の場合、赤外線
センサはトレイ表面からの赤外線を検知すること
になる。ところが、トレイがマイクロ波により加
熱されにくいガラス等の物質からなるため、被調
理物の温度が設定温度に達していても、トレイの
温度は設定温度に達せず、検出部による加熱制御
が行なわれず、被調理物が過度に加熱されて損わ
れるとともに、過熱による被調理物の突沸等によ
り調理庫内が汚れるという欠点がある。 Therefore, if the normal usage state is when the food is placed in the center of the tray and heated, the food is placed on the periphery of the tray, that is, outside the field of view of the infrared sensor. In the case of abnormal usage conditions, such as when the tray is placed and heated, the infrared sensor will detect infrared rays from the tray surface. However, because the tray is made of a material such as glass that is difficult to be heated by microwaves, even if the temperature of the food to be cooked reaches the set temperature, the temperature of the tray does not reach the set temperature, and the detection unit does not control the heating. However, there are disadvantages in that the food to be cooked is overheated and spoiled, and the interior of the cooking chamber becomes dirty due to bumping of the food due to overheating.
この考案は、前記の点に留意してなされたもの
であり、つぎにこの考案を、その１実施例を示し
た図面とともに詳細に説明する。 This invention has been made with the above-mentioned points in mind, and next, this invention will be explained in detail with reference to drawings showing one embodiment thereof.
１は電子レンジのフレーム、２はフレーム１内
に設けられた調理庫、３はマイクロ波により加熱
されにくいガラス等の物質からなり被調理物（図
示せず）が載置されるトレイ、４は調理庫２の上
壁中央部に形成された赤外線入射口、５は入射口
４からの赤外線を検知する赤外線センサが収納さ
れた検出部であり、被調理物の温度を検出してマ
イクロ波発生装置（図示せず）の出力を制御し、
自動的に加熱制御を行なう。６はチヨツパモー
タ、７はチヨツパモータ６により回転され検出部
５に入射する赤外線を一定間隔で断続するチヨツ
パ、８はトレイ２の中央部表面の検出部５の視野
範囲内に設けられた被検出体であり、マイクロ波
により加熱されやすいフエライト等の物質からな
る。なお、図中の１点鎖線は、検出部５の赤外線
センサの視野範囲を示している。 1 is a frame of the microwave oven, 2 is a cooking chamber provided in the frame 1, 3 is a tray made of a material such as glass that is difficult to heat by microwaves, and on which the food to be cooked (not shown) is placed; 4 is a tray The infrared rays entrance port 5 is formed in the center of the upper wall of the cooking cabinet 2, and 5 is a detection unit housing an infrared sensor that detects the infrared rays from the entrance port 4, which detects the temperature of the food to be cooked and generates microwaves. controlling the output of a device (not shown);
Automatically performs heating control. 6 is a chopper motor; 7 is a chopper that is rotated by the chopper motor 6 and cuts off the infrared rays incident on the detection unit 5 at regular intervals; 8 is a detection object provided on the central surface of the tray 2 within the field of view of the detection unit 5; It is made of a substance such as ferrite that is easily heated by microwaves. In addition, the dashed-dotted line in the figure shows the visual field range of the infrared sensor of the detection part 5.
そして、被調理物がトレイ２の被検出体８上に
載置されて加熱される正常な使用状態の場合、被
調理物が検出部５の赤外線センサの視野範囲内に
あるため、検出部５の赤外線センサにより被調理
物から放射された赤外線が検知され、検出部５に
より被調理物の温度が検出されるとともに、当該
温度が被調理物の種類等に応じて予め設定された
調理設定温度と比較され、被調理物の温度が設定
温度より高い場合に、検出部５から検出信号が出
力されてマイクロ波発生装置の発振が停止され、
被調理物の加熱が自動的に制御される。 In a normal usage state in which the food to be cooked is placed on the detected object 8 of the tray 2 and heated, the food to be cooked is within the field of view of the infrared sensor of the detection section 5, so the detection section 5 The infrared sensor detects the infrared rays emitted from the food to be cooked, and the detection unit 5 detects the temperature of the food to be cooked, and the temperature is set as a preset cooking temperature according to the type of food to be cooked. When the temperature of the food to be cooked is higher than the set temperature, a detection signal is output from the detection unit 5 and the oscillation of the microwave generator is stopped,
Heating of the food to be cooked is automatically controlled.
つぎに、被調理物が被検出体８以外のトレイ２
上、すなわちトレイ２の周辺部に載置されて加熱
される正常でない使用状態の場合、被調理物が検
出部５の赤外線センサの視野範囲外にあるため、
検出部５は赤外線センサにより被調理物からの赤
外線は検知されず、被検出体８から放射された赤
外線が検知され、検出部５により被検出体８の温
度が検出される。このとき、被検出体８がマイク
ロ波により加熱されやすい物質からなるため、被
調理物の温度上昇に比べ、被検出体８の温度は急
激に上昇し、検出部５により検出される被検出体
８の温度は被調理物の実際の温度より高くなる。
そして、被検出体８の温度が予め設定された調理
設定温度に達した場合、検出部５から検出信号が
出力されてマイクロ波発生装置の発振が停止さ
れ、被調理物の加熱が停止されるため、被調理物
が過度に加熱されて損われたり、被調理物が突沸
して調理庫２内を汚したりすることが防止され
る。 Next, the food to be cooked is placed on the tray 2 other than the object to be detected 8.
In the case of an abnormal usage state in which the food is placed on the top, that is, on the periphery of the tray 2 and heated, the food to be cooked is outside the field of view of the infrared sensor of the detection unit 5.
The detecting section 5 does not detect infrared rays from the food to be cooked, but detects infrared rays emitted from the object 8 to be detected, and the temperature of the object 8 is detected by the detecting section 5 . At this time, since the object to be detected 8 is made of a substance that is easily heated by microwaves, the temperature of the object to be detected 8 increases rapidly compared to the temperature rise of the object to be cooked, and the object to be detected is detected by the detection unit 5. The temperature at No. 8 is higher than the actual temperature of the food to be cooked.
When the temperature of the object to be detected 8 reaches a preset cooking temperature, a detection signal is output from the detection unit 5, the oscillation of the microwave generator is stopped, and heating of the food to be cooked is stopped. Therefore, the food to be cooked is prevented from being overheated and spoiled, and the food to be cooked from boiling and contaminating the inside of the cooking chamber 2 is prevented.
したがつて、被調理物が検出部５の赤外線セン
サの視野範囲外のトレイ２上に載置されて加熱さ
れるような正常でない使用状態において、検出部
５により被調理物が過度に加熱される以前に加熱
が停止され、従来のように過熱により被調理物が
損われることが防止されるとともに、被調理物の
突沸等により調理庫２内が汚れることが防止され
る。 Therefore, in an abnormal usage state in which the food to be cooked is placed on the tray 2 outside the field of view of the infrared sensor of the detection section 5 and heated, the detection section 5 will not cause the food to be heated excessively. Heating is stopped before the food is heated, and the food to be cooked is prevented from being damaged by overheating as in the conventional case, and the inside of the cooking chamber 2 is also prevented from becoming dirty due to bumping of the food.
以上のように、この考案の電子レンジによる
と、調理庫内の被調理物から放射される赤外線を
検知して自動的に加熱制御を行なう検出部を備え
た電子レンジにおいて、マイクロ波により加熱さ
れにくい物質からなり被調理物が載置されるトレ
イ表面の検出部の視野範囲内に、マイクロ波によ
り加熱されやすい物質からなる被検出体を設けた
ことにより、検出部の視野範囲外のトレイ上に被
調理物が載置された場合に、被調理物が過度に加
熱されて損われることを防止することができると
ともに、過熱による被調理物の突沸等により調理
庫内が汚れることを防止することができる。 As described above, according to the microwave oven of this invention, in a microwave oven equipped with a detection unit that detects infrared rays emitted from the food to be cooked in the cooking chamber and automatically controls heating, the microwave oven heats the food using microwaves. By providing a detection object made of a material that is easily heated by microwaves within the field of view of the detection section on the surface of the tray on which the food to be cooked is placed, which is made of a material that is difficult to cook, This prevents the food from being overheated and damaged when the food is placed on the stove, and also prevents the inside of the cooking cabinet from becoming dirty due to bumping of the food due to overheating. be able to.
図面はこの考案の電子レンジの１実施例の概略
正面図である。
２……調理庫、３……トレイ、５……検出部、
８……被検出体。
The drawing is a schematic front view of one embodiment of the microwave oven of this invention. 2... Cooking cabinet, 3... Tray, 5... Detection unit,
8...Object to be detected.
Claims (1)
知して自動的に加熱制御を行なう検出部を備えた
電子レンジにおいて、マイクロ波により加熱され
にくい物質からなり被調理物が載置されるトレイ
表面の前記検出部の視野範囲内に、マイクロ波に
より加熱されやすい物質からなる被検出体を、設
けた電子レンジ。 In a microwave oven equipped with a detection unit that detects infrared rays emitted from food items in the cooking chamber and automatically controls heating, a tray made of a material that is difficult to be heated by microwaves and on which food items are placed. A microwave oven, wherein a detection object made of a substance that is easily heated by microwaves is provided within the field of view of the detection section on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981182626U JPS5887007U (en) | 1981-12-07 | 1981-12-07 | microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981182626U JPS5887007U (en) | 1981-12-07 | 1981-12-07 | microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5887007U JPS5887007U (en) | 1983-06-13 |
| JPS6128967Y2 true JPS6128967Y2 (en) | 1986-08-27 |
Family
ID=29981158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981182626U Granted JPS5887007U (en) | 1981-12-07 | 1981-12-07 | microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5887007U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5467344B2 (en) * | 2009-12-17 | 2014-04-09 | パナソニック株式会社 | Cooker |
-
1981
- 1981-12-07 JP JP1981182626U patent/JPS5887007U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5887007U (en) | 1983-06-13 |
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