JPS635647B2 - - Google Patents
Info
- Publication number
- JPS635647B2 JPS635647B2 JP2336384A JP2336384A JPS635647B2 JP S635647 B2 JPS635647 B2 JP S635647B2 JP 2336384 A JP2336384 A JP 2336384A JP 2336384 A JP2336384 A JP 2336384A JP S635647 B2 JPS635647 B2 JP S635647B2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- gas
- oven
- humidity
- moisture
- 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
- 238000012856 packing Methods 0.000 claims description 3
- 238000010411 cooking Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は一般家庭で使用されるオーブンに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an oven for general household use.
従来例の構成とその問題点
一般に被調理物から出る水分やガス分を検知し
て調理状態や調理終了時点を判定する試みは従来
からなされている。特に電子レンジにおいては、
水分を相対湿度として検知し調理状態を制御して
いる。電子レンジにおいては庫内が密閉され、シ
ールドされており、したがつて庫内温度は低いた
め、特別に送風をして排気口近辺に設けられた湿
度センサに被調理物から出た水分を送つている。Conventional Structures and Problems There have been attempts in the past to determine the cooking status and the end of cooking by detecting moisture and gas emitted from the food to be cooked. Especially in the microwave,
The cooking status is controlled by detecting moisture as relative humidity. In a microwave oven, the inside of the oven is sealed and shielded, so the temperature inside is low, so a special air blower is used to send moisture from the food to the humidity sensor installed near the exhaust port. It's on.
しかしながら本発明で述べるオーブンにおいて
は、庫内温度を一定に保つて被調理物を加熱する
ことにより調理するため、強く送風すると高い温
度の空気が被調理物から出た水分とともに排気口
に送られ、したがつて排気口近辺に湿度センサを
設けてもセンサ部の温度が上がつてしまい相対湿
度としては検知できない。 However, in the oven described in the present invention, cooking is carried out by heating the food while keeping the internal temperature constant, so when strong air is blown, high temperature air is sent to the exhaust port along with moisture from the food. Therefore, even if a humidity sensor is provided near the exhaust port, the temperature of the sensor section will rise and relative humidity cannot be detected.
また、強い送風を行うと庫内温度が下がり一定
温度を保てないという問題があつた。さらにオー
ブンでは電子レンジと異なり、完全な密閉状態は
必要としなかつたため、前面のドア部等に多くの
間〓があつた。このため、外部の風等の影響を受
けた湿度検知では同一被調理物から出る水分量を
検知しても検知レベルに再現性が得られないとい
う問題を併せ持つていた。 In addition, there was a problem in that when strong air was blown, the temperature inside the refrigerator dropped and it was not possible to maintain a constant temperature. Furthermore, unlike microwave ovens, ovens do not require a completely sealed state, so there are many gaps in the front door. For this reason, humidity detection affected by external wind or the like has the problem that reproducibility of the detection level cannot be obtained even if the amount of moisture coming out of the same food is detected.
発明の目的
本発明は上記従来の問題点に鑑み、湿度検知な
らびにガス検知のセンサの性能向上をはかること
を目的とするものである。OBJECTS OF THE INVENTION In view of the above-mentioned conventional problems, it is an object of the present invention to improve the performance of humidity detection and gas detection sensors.
発明の構成
上記目的を達成するために本発明は、筐体後面
に取付けた排気ダクトの上端を、筐体後面に設け
た排気口に連通させ、かつ下端を筐体前面とドア
の対向面の下部に設けた開口部より上方に位置さ
せ、この排気ダクト内に湿度およびガスを検知す
るセンサを設けたもので、この構成によれば、フ
アン等の強制送風の機構なしにオーブン庫内で発
生した水分・ガス分を排気口下側に設けたセンサ
へ自然送風して検知することができるものであ
る。Structure of the Invention In order to achieve the above object, the present invention connects the upper end of the exhaust duct attached to the rear surface of the housing to the exhaust port provided on the rear surface of the housing, and connects the lower end between the front surface of the housing and the opposite surface of the door. The exhaust duct is located above the opening at the bottom, and a sensor is installed in the exhaust duct to detect humidity and gas. With this configuration, there is no need for a forced air mechanism such as a fan to prevent air generation inside the oven. The moisture and gas content can be detected by naturally blowing air to a sensor installed below the exhaust port.
実施例の説明
以下、本発明の一実施例を添付図面にもとづい
て説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.
図に示すように、筐体１の前面ドア２との対向
面３にはシリコンゴム等のパツキング４が上部並
びに両側部に設けられてシールドされており、ド
ア２の下部のみに開口部５が形成されている。筐
体１の後部では排気口６に下向きの排気ダクト７
が取付けられ、この排気ダクト７内に湿度並びに
ガスを検知するセンサ８が設けられている。筐体
１内の上下ヒータ９，１０により受皿１１上の被
調理物１２が加熱されると水分並びにガス分を発
生する。同時に庫内の空気も加熱されているた
め、第１図中の矢印のように空気と水分並びにガ
ス分は上方に向かい、前面開口部５から新たに流
入する空気に押されて後部排気口６を通り排気ダ
クト７中でセンサ８に検知され外へ流出する。こ
の流れは加熱空気の自然対流によるもので、前面
の開口部５の高さａより後部の排気ダクト７の開
放端の高さｂの方が大きければ基本的には流れが
生ずる、この空気の流れは開口部の大小、高さ
ａ，ｂの関係等により変化する。また、自然な流
れで、かつ庫内に発生した水分はすべて排気され
るので、検知レベル再現性が得られ、強制送風に
よるものと比べてレベルの揺ぎが少なく安定した
湿度・ガスの検知ができる。実験によれば250℃
前後で調理するグリル調理ではガス検出が調理プ
ロセスと密接な関係を有する。この庫内温度の場
合、センサ部は90℃程度にする。一方160〜200℃
で調理するオーブン調理では湿度検出が調理プロ
セスと関係があり、上記グリル調理の場合と同じ
オーブン構成を用いると、センサ部の温度は64〜
78℃となり相対湿度検知が可能となる。更にヒユ
ミセラム（商品名）をセンサ８として用いるとセ
ンサの傍熱ヒータのON・OFFでガス・湿度の切
換え検知が可能となる。このセンサはMgCr2O4
を主材料とする焼結セラミツクスで、傍熱ヒータ
をONにし、センサ温度を400〜500℃にするとバ
ルク自身にガス感応特性が出て、抵抗変化を示
す。また傍熱ヒータをOFFすると、湿度感応特
性が出て、センサ表面への水分付着で抵抗変化を
示す。このため、このセンサを用いれば同一オー
ブン構成・同一センサで湿度・ガスの切換え検知
が可能となる。 As shown in the figure, the surface 3 of the housing 1 facing the front door 2 is shielded by packing 4 made of silicone rubber or the like on the top and both sides, and an opening 5 is provided only at the bottom of the door 2. It is formed. At the rear of the housing 1, a downward exhaust duct 7 is connected to the exhaust port 6.
A sensor 8 is installed in the exhaust duct 7 to detect humidity and gas. When the food to be cooked 12 on the saucer 11 is heated by the upper and lower heaters 9 and 10 within the housing 1, moisture and gas are generated. At the same time, the air inside the refrigerator is also heated, so the air, moisture, and gas flow upward as shown by the arrows in Figure 1, and are pushed by the new air flowing in from the front opening 5 to the rear exhaust port 6. It passes through the exhaust duct 7, is detected by the sensor 8, and flows out. This flow is due to natural convection of heated air, and if the height b of the open end of the rear exhaust duct 7 is greater than the height a of the front opening 5, a flow will basically occur. The flow changes depending on the size of the opening, the relationship between the heights a and b, and so on. In addition, since all the moisture generated in the chamber is exhausted naturally, detection level reproducibility is achieved, and stable humidity and gas detection with less fluctuation in level compared to forced air flow is achieved. can. According to experiments 250℃
In grill cooking, which involves cooking before and after cooking, gas detection has a close relationship with the cooking process. At this internal temperature, the sensor section should be around 90℃. Meanwhile 160~200℃
In oven cooking, humidity detection is related to the cooking process, and if the same oven configuration as in the case of grill cooking is used, the temperature of the sensor part will be between 64
The temperature reaches 78℃, making it possible to detect relative humidity. Furthermore, when Huyumi Ceram (trade name) is used as the sensor 8, switching of gas and humidity can be detected by turning on and off the sensor's indirect heater. This sensor is MgCr 2 O 4
When the indirect heater is turned on and the sensor temperature is raised to 400-500℃, the bulk itself exhibits gas-sensitive characteristics and shows a change in resistance. Additionally, when the indirect heater is turned off, humidity-sensitive characteristics appear, and resistance changes due to moisture adhering to the sensor surface. Therefore, if this sensor is used, it becomes possible to detect humidity and gas switching with the same oven configuration and the same sensor.
発明の効果
以上の説明から明らかなように本発明によれ
ば、フアン等の強制送風の機構なしにオーブン庫
内で発生した水分・ガス分を排気口下側に設けた
センサへ自然送風して検知することができ、水
分・ガス分の揺ぎも少なく、微風なため庫内温度
も下がらない利点を有する。また、空気は庫内か
らセンサを通らずに排気される径路はないため、
湿度、ガスの検知レベルに高い再現性が得られる
等の特長も有するものである。Effects of the Invention As is clear from the above description, according to the present invention, moisture and gas generated in the oven are naturally blown to the sensor installed below the exhaust port without the need for a forced air mechanism such as a fan. It has the advantage that there is little fluctuation in moisture and gas content, and the temperature inside the refrigerator does not drop because of the light breeze. In addition, there is no path for air to be exhausted from inside the refrigerator without passing through the sensor.
It also has features such as high reproducibility in humidity and gas detection levels.
第１図は本発明の一実施例を示すオーブンの断
面図、第２図は同オーブンの前部斜視図、第３図
は同オーブンの後部の一部欠截斜視図である。
１……筐体、２……ドア、３……対向面、４…
…パツキング、５……開口部、６……排気口、７
……排気ダクト、８……センサ。
FIG. 1 is a sectional view of an oven showing an embodiment of the present invention, FIG. 2 is a front perspective view of the oven, and FIG. 3 is a partially cutaway perspective view of the rear part of the oven. 1... Housing, 2... Door, 3... Opposing surface, 4...
...Packing, 5...Opening, 6...Exhaust port, 7
...Exhaust duct, 8...Sensor.
Claims (1)
側部をパツキングでシールドし、下部に開口部を
設け、筐体後面に排気口を設け、筐体後面に取付
けた排気ダクトの上端を前記排気口に連通させ、
かつ下端を前記開口部より上方に位置させ、この
排気ダクト内に湿度およびガスを検知するセンサ
を設けてなるオーブン。1. Shield the upper and both sides of the front surface of the casing and the facing surface of the door with packing, provide an opening at the bottom, provide an exhaust port on the rear surface of the casing, and connect the upper end of the exhaust duct attached to the rear surface of the casing to the exhaust gas. communicate with the mouth,
The oven has a lower end located above the opening, and a sensor for detecting humidity and gas is provided in the exhaust duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336384A JPS59161615A (en) | 1984-02-10 | 1984-02-10 | Oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2336384A JPS59161615A (en) | 1984-02-10 | 1984-02-10 | Oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59161615A JPS59161615A (en) | 1984-09-12 |
| JPS635647B2 true JPS635647B2 (en) | 1988-02-04 |
Family
ID=12108481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2336384A Granted JPS59161615A (en) | 1984-02-10 | 1984-02-10 | Oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220128537A1 (en) * | 2019-04-26 | 2022-04-28 | METER Group, Inc. USA | Water balance sensor station systems |
-
1984
- 1984-02-10 JP JP2336384A patent/JPS59161615A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220128537A1 (en) * | 2019-04-26 | 2022-04-28 | METER Group, Inc. USA | Water balance sensor station systems |
| US11674941B2 (en) * | 2019-04-26 | 2023-06-13 | Meter Group, Inc. | Water balance sensor station systems |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59161615A (en) | 1984-09-12 |
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