JPS627451B2 - - Google Patents
Info
- Publication number
- JPS627451B2 JPS627451B2 JP2126779A JP2126779A JPS627451B2 JP S627451 B2 JPS627451 B2 JP S627451B2 JP 2126779 A JP2126779 A JP 2126779A JP 2126779 A JP2126779 A JP 2126779A JP S627451 B2 JPS627451 B2 JP S627451B2
- Authority
- JP
- Japan
- Prior art keywords
- infrared detection
- infrared
- detection window
- heated
- heating chamber
- 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
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
- Electric Ovens (AREA)
Description
【発明の詳細な説明】
本発明は、加熱室内の温度検出に係わる高周波
加熱装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high frequency heating device related to temperature detection within a heating chamber.
従来、被加熱物の温度を検出する方法としてそ
れより発する赤外線を検出する方法がある。 Conventionally, there is a method for detecting the temperature of a heated object by detecting infrared rays emitted from the object.
一般的に、被加熱物から発せられた赤外線の検
出口は加熱室の上面に設けられ、主に被加熱物の
上面からの赤外線を検出してその被加熱物の温度
を測定していた。 Generally, a detection port for infrared rays emitted from the object to be heated is provided on the upper surface of the heating chamber, and the temperature of the object to be heated is measured by mainly detecting infrared rays from the upper surface of the object to be heated.
ところで、高周波加熱を行なうと、多少の差は
あれ、必然的に加熱むらが生ずる。そのため、被
加熱物の赤外線を検知する部分が、その被加熱物
の平均温度より高いか低いかによつて加熱不足に
なつたり過加熱になつたりするということが明ら
かに類推できるし、又確認もできた。 By the way, when high-frequency heating is performed, uneven heating inevitably occurs, although there may be some differences. Therefore, it can be clearly inferred that the part that detects infrared rays of the heated object will be underheated or overheated depending on whether it is higher or lower than the average temperature of the heated object, and it cannot be confirmed. did it.
前記の従来の方法では赤外線の検出視野角を食
品の大きさによつて、広げたり狭くしたり、ある
いは加熱庫内をスキヤンさせることによつてさえ
も最大限被加熱物の上面の平均温度が検出できる
だけであり、これでは正確な温度検知の出来る被
加熱物は厚さの薄いもの、内部で対流を生ずる液
体状のものに限られてしまうといつた欠点があつ
た。 In the conventional method described above, the average temperature of the top surface of the object to be heated can be maximized by widening or narrowing the infrared detection viewing angle depending on the size of the food, or even by scanning the inside of the heating chamber. However, this method has the disadvantage that the temperature of heated objects that can be accurately detected is limited to thin objects or liquid objects that cause internal convection.
そこで、本発明はこの点に鑑み、肉塊などのよ
うな、加熱むらを生じやすい被加熱物の温度を検
出する方法を提供する。 Therefore, in view of this point, the present invention provides a method for detecting the temperature of a heated object, such as a piece of meat, which tends to cause uneven heating.
以下、図面に基づき、本発明の一実施例につい
て説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
１は金属加熱室で、中に入れた被加熱物３をマ
グネトロン２から発振された高周波エネルギーで
加熱する。４は回転皿であり、被加熱物３をこの
上に載せて回転させながら加熱する。５は回転皿
４の駆動用モータである。６は加熱室１の側壁面
１′に設けられた赤外線検出窓であり、この窓６
を通して、加熱室１外に設けられた赤外線センサ
ー７が、被加熱物３から発せられた赤外線を検出
する。 Reference numeral 1 denotes a metal heating chamber, in which an object to be heated 3 placed therein is heated with high frequency energy oscillated from a magnetron 2 . 4 is a rotating plate, on which the object to be heated 3 is placed and heated while rotating. 5 is a motor for driving the rotating plate 4. 6 is an infrared detection window provided on the side wall surface 1' of the heating chamber 1;
Through this, an infrared sensor 7 provided outside the heating chamber 1 detects infrared rays emitted from the object to be heated 3.
赤外線センサー７の水平方向の光軸９は第２図
の如く、ほゞ回転皿４の回転中心１０に向いてい
る。 The horizontal optical axis 9 of the infrared sensor 7 is directed toward the center of rotation 10 of the rotary plate 4, as shown in FIG.
８は制御回路であり、赤外線センサー７の出力
信号によつて、マグネトロン２をコントロールす
るものである。 A control circuit 8 controls the magnetron 2 based on the output signal of the infrared sensor 7.
又第１図で、赤外線センサー７の垂直方向の光
軸９は水平に被加熱物３を目指しているが、本発
明はこれにこだわるものではなく、例えば赤外線
検出窓６をもう少し上の方へ設けて、垂直方向の
光軸９′が少し下を向くようにしてもよい。 In FIG. 1, the vertical optical axis 9 of the infrared sensor 7 is aimed horizontally at the heated object 3, but the present invention is not limited to this. For example, the infrared detection window 6 may be moved a little higher. The optical axis 9' may also be provided so that the vertical optical axis 9' points slightly downward.
以上のように本発明は加熱室の側壁に設けられ
た赤外線検出窓と、食品を回転させるための回転
皿と、検出された赤外線を処理し、その結果によ
つてマグネトロンをコントロールする制御回路と
を設ける構成であり、食品の上、下面を除いた他
の４面の温度の積分値又は平均値を捕えることが
できるので食品全体の平均温度により近い温度を
検出することができ、正確な温度コントロールが
出来るという効果を奏するものである。 As described above, the present invention includes an infrared detection window provided on the side wall of a heating chamber, a rotating plate for rotating food, and a control circuit that processes detected infrared rays and controls a magnetron based on the results. Since it is possible to capture the integrated value or average value of the temperature of the other four sides of the food, excluding the top and bottom, it is possible to detect a temperature closer to the average temperature of the entire food, and to obtain accurate temperature. This has the effect of allowing control.
第１図は本発明の一実施例を示す高周波加熱装
置の垂直断面構成図、第２図は同じく水平断面構
成図である。
１……金属加熱室、２……マグネトロン、３…
…被加熱物、４……回転皿、６……赤外線検出
窓、７……赤外線センサ、８……制御回路、９，
９′……光軸。
FIG. 1 is a vertical sectional view of a high-frequency heating device showing an embodiment of the present invention, and FIG. 2 is a horizontal sectional view of the same. 1...Metal heating chamber, 2...Magnetron, 3...
... Heated object, 4 ... Rotating plate, 6 ... Infrared detection window, 7 ... Infrared sensor, 8 ... Control circuit, 9,
9'...Optical axis.
Claims (1)
面に設けられた赤外線検出窓と、この赤外線検出
窓から入つてきた赤外線を受光する赤外線検知素
子と、加熱中食品を回転させ食品側面全周を前記
赤外線検出窓に対向させるための回転皿とを備
え、前記赤外線検出窓を通して検出された赤外線
量を積分処理し、その積分値によつて、マグネト
ロンをコントロールする制御回路を有する高周波
加熱装置。1. A box-shaped metal heating chamber, an infrared detection window provided on the side wall of the metal heating chamber, an infrared detection element that receives infrared rays that enter through the infrared detection window, and an infrared detection element that receives the infrared rays that enter through the infrared detection window. A high-frequency heating device comprising a rotating plate whose entire circumference faces the infrared detection window, and a control circuit that integrates the amount of infrared rays detected through the infrared detection window and controls a magnetron based on the integrated value. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2126779A JPS55112939A (en) | 1979-02-23 | 1979-02-23 | High frequency heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2126779A JPS55112939A (en) | 1979-02-23 | 1979-02-23 | High frequency heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55112939A JPS55112939A (en) | 1980-09-01 |
| JPS627451B2 true JPS627451B2 (en) | 1987-02-17 |
Family
ID=12050325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2126779A Granted JPS55112939A (en) | 1979-02-23 | 1979-02-23 | High frequency heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55112939A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58108309U (en) * | 1982-01-19 | 1983-07-23 | 三洋電機株式会社 | microwave oven |
| JPS58210419A (en) * | 1982-06-01 | 1983-12-07 | Matsushita Electric Ind Co Ltd | Electronic oven with sensor |
| CA2229951C (en) * | 1997-03-18 | 2002-05-07 | Sanyo Electric Co., Ltd. | Cooking apparatus including infrared ray sensor |
-
1979
- 1979-02-23 JP JP2126779A patent/JPS55112939A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55112939A (en) | 1980-09-01 |
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