JPH0668381B2 - Heating cooker - Google Patents
Heating cookerInfo
- Publication number
- JPH0668381B2 JPH0668381B2 JP13247687A JP13247687A JPH0668381B2 JP H0668381 B2 JPH0668381 B2 JP H0668381B2 JP 13247687 A JP13247687 A JP 13247687A JP 13247687 A JP13247687 A JP 13247687A JP H0668381 B2 JPH0668381 B2 JP H0668381B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- thermistor
- heating
- heating element
- storage
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims description 26
- 238000010411 cooking Methods 0.000 claims description 12
- 235000013305 food Nutrition 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
Landscapes
- Electric Ovens (AREA)
- Electric Stoves And Ranges (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はオーブン電子レンジなどの加熱調理器に関する
ものである。TECHNICAL FIELD The present invention relates to a heating cooker such as an oven microwave oven.
従来の技術 従来、この種の加熱調理器は、第９図に示すように、サ
ーミスタＲｔと基準抵抗Ｒｒとを直列に接続し、電圧Ｅ
ｏを印加し、基準抵抗Ｒｒの両端の電圧Ｖｏｕｔを検知
し、加熱調理器の庫内温度を制御していた。2. Description of the Related Art Conventionally, in this type of heating cooker, as shown in FIG. 9, a thermistor Rt and a reference resistance Rr are connected in series to generate a voltage E
O was applied, the voltage Vout across the reference resistance Rr was detected, and the internal temperature of the cooking device was controlled.
発明が解決しようとする問題点 しかしながら従来の構成では、幅広い温度範囲にわたっ
て例えば、発酵などの低温領域（２０〜４０℃）スポン
ジケーキなどの中温領域（１２０〜１６０℃）、グラタ
ンなどの温度領域（２００〜２５０℃）において、精度
よく庫内温度を制御することが出来なかった。このた
め、調理の出来栄えが悪いなどの問題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the conventional configuration, over a wide temperature range, for example, a low temperature region (20 to 40 ° C.) such as fermentation, a medium temperature region (120 to 160 ° C.) such as sponge cake, a temperature region (such as gratin) ( 200 to 250 ° C.), it was not possible to accurately control the temperature inside the refrigerator. Therefore, there are problems such as poor cooking performance.
本発明は上記問題を解消するため、幅広い温度範囲にわ
たって、精度よく庫内温度を制御できる加熱調理器を提
供することを目的とする。In order to solve the above-mentioned problems, an object of the present invention is to provide a heating cooker capable of accurately controlling the temperature inside the refrigerator over a wide temperature range.
問題点を解決するための手段 上記目的を達成するために本発明の加熱調理器は、食品
収納庫を加熱する発熱体と、庫内の温度を検知するサー
ミスタと、調理メニューに応じ、前記サーミスタに直列
に入いる基準抵抗を選別する手段と、前記直列に接続さ
れた基準抵抗から庫内温度を検知する手段と、検知した
庫内温度に基づき発熱体への通電量を制御する発熱体駆
動手段とからなる。Means for Solving the Problems In order to achieve the above object, the heating cooker of the present invention includes a heating element for heating a food storage, a thermistor for detecting the temperature inside the storage, and a thermistor according to a cooking menu. Means for selecting a reference resistance that is in series with the heating means, a means for detecting the temperature inside the storage compartment from the reference resistance connected in series, and a heating element drive that controls the amount of electricity to the heating element based on the detected inside temperature And means.
作用 本発明は上記構成によるため、調理メニューに応じた温
度範囲に最適な基準抵抗を選別することが出来るため、
幅広い温度範囲にわたって、精度よく庫内温度を検知す
ることが出来、精度よく庫内温度を制御することが出来
る。Action Since the present invention has the above-described configuration, it is possible to select the optimum reference resistance in the temperature range according to the cooking menu,
The temperature inside the refrigerator can be detected accurately over a wide temperature range, and the temperature inside the refrigerator can be controlled accurately.
実施例 第１図は本発明の一実施例を示す構成図で、１は食品２
を収納する収納庫、３は食品を載置する台、４は収納庫
内を加熱するための発熱体、５は庫内の温度を検知する
ためのサーミスタ、６は調理メニューを選択するための
スイッチ、７は調理メニューに応じて最適な基準抵抗を
選別する基準抵抗選別手段、８はサーミスタ５と、基準
抵抗選別手段７により選別された基準抵抗とから庫内温
度を検知する庫内温度検知手段９は検知された庫内温度
により発熱体４への通電量を制御する発熱体駆動手段を
示す 次に、第２図により、幅広い温度範囲にわたって精度よ
く庫内温度を制御する原理を説明すると、それぞれの温
度範囲に応じ、スイッチ（ＳＷ１、ＳＷ２、ＳＷ３）に
より最適な基準抵抗（Ｒｒ１、Ｒｒ２、Ｒｒ３）を選別
し、サーミスタＲｔと直列に接続し、直流電圧Ｅｏの分
圧Ｖｏｕｔを検知することにより達成される。例えば、
このような加熱調理器のサーミスタとしてよく用いられ
るＳｉＣ薄膜サーミスタを用いた場合の例を以下に示
す。第３図はＳｉＣ薄膜サーミスタの０〜350℃の幅広
い温度領域にわたる抵抗−温度特性を示す。第２図に示
すようにこのようなサーミスタに３本の基準抵抗、例え
ば４６０ＫΩ、５６ＫΩ、１８ＫΩをそれぞれ直列に接
続した場合、出力電圧Ｖｏｕｔは第４図に示すように変
化する。従来のように基準抵抗が１本（Ｒｒ＝５６Ｋ
Ω）の場合の出力電圧は第５図に示すように変化する。
これらの出力電圧を用いて温度制御を実施した場合の庫
内温度の精度を第６図、第７図に示す。第６図は基準抵
抗が３本ある場合の結果であり、それぞれの温度範囲
で、基準抵抗を切換えて用いるため、０〜３００℃もの
幅広い温度範囲において、±3.5℃以下の精度を達成す
ることが出来た。これは第７図に示した基準抵抗が１本
の場合の結果、０−３００℃の温度範囲における精度±
６℃、に比べ大幅に改良されたことがわかる。Embodiment FIG. 1 is a block diagram showing an embodiment of the present invention, in which 1 is a food product 2.
A storage box for storing food, 3 is a table on which food is placed, 4 is a heating element for heating the inside of the storage, 5 is a thermistor for detecting the temperature in the storage, and 6 is for selecting a cooking menu. A switch, 7 is a reference resistance selecting means for selecting an optimum reference resistance according to a cooking menu, 8 is a thermistor 5, and the inside temperature detection for detecting the inside temperature from the reference resistance selected by the reference resistance selecting means 7. Means 9 shows a heating element driving means for controlling the amount of electricity supplied to the heating element 4 based on the detected internal temperature. Next, referring to FIG. 2, the principle of accurately controlling the internal temperature over a wide temperature range will be described. , The optimum reference resistances (Rr 1 , Rr 2 , Rr 3 ) are selected by the switches (SW 1 , SW 2 , SW 3 ) according to the respective temperature ranges, and are connected in series with the thermistor Rt. Partial pressure V This is achieved by detecting out. For example,
An example of using a SiC thin film thermistor that is often used as the thermistor of such a heating cooker will be shown below. FIG. 3 shows the resistance-temperature characteristics of a SiC thin film thermistor over a wide temperature range of 0 to 350 ° C. As shown in FIG. 2, when three reference resistors such as 460 KΩ, 56 KΩ, and 18 KΩ are connected in series to such a thermistor, the output voltage Vout changes as shown in FIG. One standard resistor (Rr = 56K)
Ω), the output voltage changes as shown in FIG.
FIGS. 6 and 7 show the accuracy of the internal cold storage temperature when the temperature control is performed using these output voltages. Fig. 6 shows the results when there are three reference resistors. Since the reference resistors are switched and used in each temperature range, an accuracy of ± 3.5 ° C or less should be achieved in a wide temperature range of 0 to 300 ° C. Was completed. This is the result of the case where there is one reference resistance shown in FIG.
It can be seen that it is significantly improved compared to 6 ° C.
第８図に要部の具体的な回路の一例を示す。１０は発酵
１０ａ、スポンジケーキ１０ｂ、グラタン１０ｃなどの
調理メニュー選択キー、１１はマイクロコンピュータを
示す。マイクロコンピュータ１１は調理メニューキー１
０に応じて、最適な温度領域を判別し、それにあった基
準抵抗（Ｒｒ１、Ｒｒ２、Ｒｒ３など）を選別し、スイ
ッチ１２（ＳＷ１ＳＷ２、ＳＷ３など）を動作させ、サ
ーミスタ５（Ｒｔ）に直列に接続する。直流電圧Ｅｏの
分圧ＶｏｕｔをＡ／Ｄコンバータ１３を介して入力し、
庫内温度データを読み込む。この温度データに基づき、
交流電源１３に接続された発熱体４への電力量を開閉器
１５をオンオフすることにより制御する。このようにし
て、幅広い温度範囲にわたって、庫内温度を精度よく制
御することが出来るものである。FIG. 8 shows an example of a specific circuit of the main part. 10 is a cooking menu selection key for fermentation 10a, sponge cake 10b, gratin 10c, and the like, and 11 is a microcomputer. Microcomputer 11 is cooking menu key 1
The optimum temperature range is determined according to 0, the reference resistances (Rr 1 , Rr 2 , Rr 3, etc.) that match the optimum temperature range are selected, the switch 12 (SW 1 SW 2 , SW 3, etc.) is operated, and the thermistor is activated. 5 (Rt) connected in series. The divided voltage Vout of the DC voltage Eo is input via the A / D converter 13,
Read the temperature data in the refrigerator. Based on this temperature data,
The amount of electric power to the heating element 4 connected to the AC power supply 13 is controlled by turning on / off the switch 15. In this way, it is possible to accurately control the temperature inside the refrigerator over a wide temperature range.
発明の効果 以上のように本発明の加熱調理器によれば、次の効果が
得られる。Effects of the Invention As described above, according to the heating cooker of the present invention, the following effects are obtained.
(1)温度領域に応じて、最適な基準抵抗を選別するた
め、幅広い温度範囲にわたって庫内温度を精度よく制御
することが出来る。(1) Since the optimum reference resistance is selected according to the temperature range, the temperature inside the refrigerator can be accurately controlled over a wide temperature range.
(2)調理メニューに合わせて、基準抵抗を選別するた
め、調理メニューに最適な庫内温度に精度よく制御する
ことができる。(2) Since the reference resistance is selected according to the cooking menu, it is possible to accurately control the temperature inside the refrigerator that is most suitable for the cooking menu.
第１図は本発明の一実施例を示す加熱調理器の構成図、
第２図は温度センサと基準抵抗との結線を示すための回
路図、第３図はＳｉＣ薄膜サーミスタの特性図、第４
図、第５図は出力電圧の特性図、第６図、第７図は温度
精度を示す特性図、第８図は同装置の要部回路図、第９
図は従来のサーミスタ基準抵抗の結線図である。 １……収納庫、４……発熱体、５……サーミスタ、６…
…スイッチ、７……選別する手段、８……検知する手
段、９……発熱体駆動手段。FIG. 1 is a configuration diagram of a heating cooker showing an embodiment of the present invention,
FIG. 2 is a circuit diagram showing the connection between the temperature sensor and the reference resistance, FIG. 3 is a characteristic diagram of a SiC thin film thermistor, and FIG.
FIGS. 5 and 5 are characteristic diagrams of output voltage, FIGS. 6 and 7 are characteristic diagrams showing temperature accuracy, and FIG. 8 is a circuit diagram of main parts of the same device, and FIG.
The figure is a wiring diagram of a conventional thermistor reference resistor. 1 ... Storage, 4 ... Heating element, 5 ... Thermistor, 6 ...
... switch, 7 ... selection means, 8 ... detection means, 9 ... heating element driving means.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−118631（ＪＰ，Ａ) 特開 昭59−231619（ＪＰ，Ａ) 実開 昭61−174638（ＪＰ，Ｕ) 実開 昭53−26392（ＪＰ，Ｕ) 特公 昭53−43633（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-61-118631 (JP, A) JP-A-59-231619 (JP, A) Actually open 61-174638 (JP, U) Actual-open Sho 53- 26392 (JP, U) Japanese Patent Publication Sho 53-43633 (JP, B2)
Claims (2)
加熱するための発熱体と、前記収納庫内の温度を検知す
るサーミスタと、調理メニューに応じ前記サーミスタに
直列に入る基準抵抗を選別する手段と、前記直列に接続
された基準抵抗から前記収納庫内温度を検知する手段
と、検知した前記収納温度に基づき発熱体への通電量を
制御する発熱体駆動手段とからなる加熱調理器。1. A storage case for storing food, a heating element for heating the inside of the storage case, a thermistor for detecting the temperature in the storage case, and a reference resistor which is serially connected to the thermistor according to a cooking menu. Heating means comprising a means for selecting a temperature, a means for detecting the temperature in the storage compartment from the reference resistance connected in series, and a heating element drive means for controlling the amount of electricity supplied to the heating element based on the detected storage temperature. Cooking device.
構成された特許請求の範囲第１項記載の加熱調理器。2. The heating cooker according to claim 1, wherein the thermistor comprises a SiC thin film thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13247687A JPH0668381B2 (en) | 1987-05-28 | 1987-05-28 | Heating cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13247687A JPH0668381B2 (en) | 1987-05-28 | 1987-05-28 | Heating cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63297934A JPS63297934A (en) | 1988-12-05 |
| JPH0668381B2 true JPH0668381B2 (en) | 1994-08-31 |
Family
ID=15082263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13247687A Expired - Lifetime JPH0668381B2 (en) | 1987-05-28 | 1987-05-28 | Heating cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668381B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075189A (en) * | 2009-09-30 | 2011-04-14 | Sanyo Electric Co Ltd | Heating cooker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5343633B2 (en) | 2009-03-04 | 2013-11-13 | 株式会社リコー | Nozzle plate for toner production, toner production method and toner production apparatus |
-
1987
- 1987-05-28 JP JP13247687A patent/JPH0668381B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5343633B2 (en) | 2009-03-04 | 2013-11-13 | 株式会社リコー | Nozzle plate for toner production, toner production method and toner production apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63297934A (en) | 1988-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
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