JP2003130366A - Heating cooker - Google Patents
Heating cookerInfo
- Publication number
- JP2003130366A JP2003130366A JP2001327331A JP2001327331A JP2003130366A JP 2003130366 A JP2003130366 A JP 2003130366A JP 2001327331 A JP2001327331 A JP 2001327331A JP 2001327331 A JP2001327331 A JP 2001327331A JP 2003130366 A JP2003130366 A JP 2003130366A
- Authority
- JP
- Japan
- Prior art keywords
- cooking container
- temperature
- heating
- detecting means
- temperature detecting
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 98
- 238000010411 cooking Methods 0.000 claims abstract description 132
- 230000005855 radiation Effects 0.000 claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/07—Heating plates with temperature control means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Stoves And Ranges (AREA)
- Radiation Pyrometers (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、一般家庭で使用す
る加熱調理器に関するものである。TECHNICAL FIELD The present invention relates to a heating cooker used in general households.
【0002】[0002]
【従来の技術】従来の加熱調理器は、例えば特開平8−
178295号公報に記載されている。この構造のもの
を図9を用いて説明する。2. Description of the Related Art A conventional heating cooker is disclosed, for example, in Japanese Patent Laid-Open No. 8-
No. 178295. This structure will be described with reference to FIG.
【0003】筐体1の上面に設けられた燃焼口2と、こ
の燃焼口の上面に配置され調理物を加熱する調理容器3
と、前記調理容器3を加熱するガスバーナー4と、ガス
バーナー4に燃料ガスを供給するガス弁5と、前記調理
容器3の側壁の表面温度を検出する非接触温度センサ6
と、非接触温度センサ6の出力によりガス弁5の燃料ガ
ス供給量を制御する制御手段7を備えている。図示して
いない着火手段によってガスバーナーが引火され調理容
器3を加熱する。調理容器3はガスバーナー4の火力に
より加熱されるものであり、この火力は制御手段7によ
ってガス弁5の燃料ガスの量を制御することによって行
われている。この火力の制御は、調理容器3の側面温度
をサーモパイルからなる非接触温度センサ6の検出温度
と、設定された調理容器3の温度差によって行われてい
るものである。このとき、この文献に開示されている技
術では、非接触温度センサ6の検出温度によって正確な
温度制御をしているものである。A combustion port 2 provided on the upper surface of a casing 1 and a cooking container 3 arranged on the upper surface of the combustion port 3 for heating a food item.
A gas burner 4 for heating the cooking container 3, a gas valve 5 for supplying a fuel gas to the gas burner 4, and a non-contact temperature sensor 6 for detecting the surface temperature of the side wall of the cooking container 3.
And a control means 7 for controlling the fuel gas supply amount of the gas valve 5 by the output of the non-contact temperature sensor 6. The gas burner is ignited by an ignition means (not shown) to heat the cooking container 3. The cooking container 3 is heated by the heating power of the gas burner 4, and this heating power is performed by controlling the amount of fuel gas of the gas valve 5 by the control means 7. The control of the heating power is performed by the side surface temperature of the cooking container 3 based on the temperature difference between the temperature detected by the non-contact temperature sensor 6 made of a thermopile and the set temperature of the cooking container 3. At this time, in the technique disclosed in this document, the temperature detected by the non-contact temperature sensor 6 is accurately controlled.
【0004】[0004]
【発明が解決しようとする課題】前記従来の構成の加熱
調理器は、調理容器の材質の違いにより放射率が異なる
ため、非接触温度センサの絶対温度が検出できないとい
う課題を有しているものである。すなわち、ステンレス
の鍋など鏡面に近い調理容器では調理容器温度より低い
温度しか検出できず、調理容器の放射率の差異により温
度制御に大きな誤差が生ずるものである。The heating cooker having the above-mentioned conventional structure has a problem that the absolute temperature of the non-contact temperature sensor cannot be detected because the emissivity differs depending on the material of the cooking container. Is. That is, a cooking container close to a mirror surface such as a stainless steel pot can detect only a temperature lower than the cooking container temperature, and a difference in emissivity of the cooking container causes a large error in temperature control.
【0005】[0005]
【課題を解決するための手段】本発明は、調理容器の側
面の赤外線を検出する放射温度検出手段を設けて、放射
温度検出手段の出力に応じて加熱手段に供給する電力を
制御する。また前記調理容器の側面に向けて赤外線を断
続に放射する赤外線発光手段と、前記放射温度検出手段
の出力により調理容器の放射率を演算して放射率を補正
する温度演算手段とを設けて、調理容器の材質や表面形
状による放射率の違いを検出するようにして、正確な温
度制御ができる加熱調理器としている。According to the present invention, radiation temperature detecting means for detecting infrared rays on the side surface of a cooking container is provided, and the electric power supplied to the heating means is controlled according to the output of the radiation temperature detecting means. Further, an infrared ray emitting means for intermittently emitting infrared rays toward the side surface of the cooking container, and a temperature calculating means for calculating the emissivity of the cooking container by the output of the radiation temperature detecting means to correct the emissivity are provided. The heating cooker enables accurate temperature control by detecting the difference in emissivity depending on the material and surface shape of the cooking container.
【0006】[0006]
【発明の実施の形態】請求項1に記載した発明は、調理
容器の側面の赤外線を検出する放射温度検出手段を設け
て、放射温度検出手段の出力に応じて加熱手段に供給す
る電力を制御する。また前記調理容器の側面に向けて赤
外線を断続に放射する赤外線発光手段と、前記放射温度
検出手段の出力により調理容器の放射率を演算して放射
率を補正する温度演算手段とを設けて、調理容器の材質
や表面形状による放射率の違いを検出するようにして、
正確な温度制御ができる加熱調理器としている。According to a first aspect of the present invention, radiation temperature detecting means for detecting infrared rays on the side surface of the cooking container is provided, and the electric power supplied to the heating means is controlled according to the output of the radiation temperature detecting means. To do. Further, an infrared ray emitting means for intermittently emitting infrared rays toward the side surface of the cooking container, and a temperature calculating means for calculating the emissivity of the cooking container by the output of the radiation temperature detecting means to correct the emissivity are provided. By detecting the difference in emissivity due to the material and surface shape of the cooking container,
It is a heating cooker that can control the temperature accurately.
【0007】請求項2に記載した発明は、放射温度検出
手段は、背面に黒体面を設けて、外乱光の影響を少なく
して正確な温度検出ができる加熱調理器とするものであ
る。According to a second aspect of the present invention, the radiation temperature detecting means is a heating cooker in which a black body surface is provided on the back surface to reduce the influence of ambient light and to accurately detect the temperature.
【0008】請求項3に記載した発明は、放射温度検出
手段と赤外線発光手段を断熱する断熱手段を設けて、外
乱の熱の影響を少なくして調理容器の温度が正確に検出
できる加熱調理器とするものである。According to the third aspect of the present invention, a heating cooker is provided which is provided with a heat insulating means for insulating the radiation temperature detecting means and the infrared ray emitting means from each other so that the temperature of the cooking vessel can be accurately detected by reducing the influence of disturbance heat. It is what
【0009】請求項4に記載した発明は、放射温度検出
手段と赤外線発光手段は、調理容器の側面と対向するよ
うに可動手段を設けて、調理容器の側面の温度が検出で
きる加熱調理器とするものである。According to a fourth aspect of the present invention, the radiation temperature detecting means and the infrared emitting means are provided with movable means so as to face the side surface of the cooking container, and a heating cooker capable of detecting the temperature of the side surface of the cooking container. To do.
【0010】請求項5に記載した発明は、加熱制御手段
は、加熱開始から赤外線発光手段または放射温度検出手
段の出力が確定するまでは低い加熱量で制御する待機手
段とを設けて、異常な調理容器の温度上昇を防止するこ
とができる加熱調理器とするものである。According to the fifth aspect of the present invention, the heating control means is provided with standby means for controlling with a low heating amount from the start of heating until the output of the infrared light emitting means or the radiation temperature detecting means is determined, and abnormal heating is provided. The heating cooker can prevent the temperature of the cooking container from rising.
【0011】請求項6に記載した発明は、放射温度検出
手段と赤外線発光手段は、鍋裁置部と平坦になるように
収納部を設けて、加熱調理時に収納部より突出して調理
容器の温度が検出できるようにして、突出する面の汚れ
を防止すると共に裁置部の清掃が容易にできる加熱調理
器とするものである。According to a sixth aspect of the present invention, the radiation temperature detecting means and the infrared light emitting means are provided with an accommodating portion so as to be flat with the pan placing portion, and project from the accommodating portion during heating and cooking so that the temperature of the cooking container is increased. Therefore, the heating cooker can prevent the dirt on the protruding surface and facilitate the cleaning of the cutting portion.
【0012】請求項7に記載した発明は、赤外線発光手
段は、光学面の開閉するチョッパを設けて、高速に放射
率を検出して正確な温度制御ができる加熱調理器とする
ものである。According to a seventh aspect of the present invention, the infrared light emitting means is a heating cooker provided with a chopper for opening and closing an optical surface and capable of detecting emissivity at high speed and controlling temperature accurately.
【0013】請求項8に記載した発明は、調理容器の底
面温度を検出する底面温度検出手段を設けて、底面温度
検出手段の出力と温度演算手段の出力との差が設定値以
上ある場合は、異常報知させて正確な温度検出ができる
安全性の高い加熱調理器とするものである。According to the invention described in claim 8, bottom surface temperature detecting means for detecting the bottom surface temperature of the cooking container is provided, and when the difference between the output of the bottom surface temperature detecting means and the output of the temperature calculating means is equal to or more than a set value. The heating cooker has a high degree of safety and can notify an abnormality and accurately detect the temperature.
【0014】[0014]
【実施例】(実施例1)以下、本発明の第1の実施例に
ついて説明する。図1は、本実施例の構成を示す断面
図、図2は、本実施例の配置を示す平面図である。本実
施例の加熱調理器は、調理物を加熱する調理容器20
と、前記調理容器20を載置する非磁性体で構成したト
ッププレートからなる鍋載置部21と、前記鍋裁置部2
1の下部に設けている前記調理容器3を加熱する加熱コ
イルからなる加熱手段22と、前記加熱手段22に供給
する電力を制御する加熱制御手段23と、前記調理容器
20の側面から放射される赤外線を検出する放射温度検
出手段24と、前記調理容器20の側面に向けて赤外線
を断続に放射する赤外線発光手段25と、前記放射温度
検出手段の出力により調理容器の放射率を演算して放射
率を補正する温度演算手段26とを備えている。(Embodiment 1) A first embodiment of the present invention will be described below. FIG. 1 is a cross-sectional view showing the configuration of this embodiment, and FIG. 2 is a plan view showing the arrangement of this embodiment. The heating cooker according to the present embodiment includes a cooking container 20 for heating a food item.
And a pot placing part 21 made of a non-magnetic top plate on which the cooking container 20 is placed, and the pot placing part 2
1 is provided below the cooking container 3 and includes heating means 22 including a heating coil, heating control means 23 for controlling electric power supplied to the heating means 22, and radiation from the side surface of the cooking container 20. A radiation temperature detecting means 24 for detecting infrared rays, an infrared ray emitting means 25 for intermittently emitting infrared rays toward the side surface of the cooking container 20, and an emissivity of the cooking vessel calculated by the output of the radiation temperature detecting means for emission. The temperature calculation means 26 for correcting the rate is provided.
【0015】前記放射温度検出手段24は、調理容器2
0の側面から放射される赤外線を検出する赤外線素子に
よって構成している。前記赤外線発光手段25は、赤外
線の発光または消灯して断続的に赤外線を放射してい
る。この赤外線の放射は、フィラメントなどを定電流で
加熱して、フィラメント温度である赤外線の波長が放射
されている。断続的に赤外線を放射するためには、フィ
ラメントに流れる電流の通電または遮断によって行われ
ている。なお、前記赤外線発光手段25は、放射温度検
出手段24で検知できる波長の赤外線が放射できれば良
く、例えば黒体面の温度を制御して放射することでも同
様な効果が得られる。また、放射率の検出のために放射
温度測定用の放射温度検出手段24を用いているが、別
の赤外線受光素子を設ける構成としても同様な効果が得
られるものである。前記赤外線発光手段25が放射した
赤外線が調理容器20の側面に反射して前記放射温検出
手段24に入射できるように配置されている。制御手段
23は、前記温度演算手段26の温度情報に従って、加
熱手段22に供給する高周波電流の大きさを調整する、
あるいは加熱手段22に供給する電力を制御しているも
のである。前記放射温度検出手段24は、焦電素子やサ
ーモパイル等の赤外線を検出できるセンサが使用できる
ものである。The radiation temperature detecting means 24 is used for the cooking container 2.
It is composed of an infrared element which detects infrared rays radiated from the side surface of 0. The infrared light emitting means 25 emits infrared light or turns off the light to intermittently emit infrared light. This infrared radiation heats a filament or the like with a constant current, and the infrared wavelength, which is the filament temperature, is emitted. In order to intermittently emit infrared rays, the current flowing through the filament is turned on or off. It should be noted that the infrared light emitting means 25 only needs to be able to emit infrared light having a wavelength that can be detected by the radiation temperature detecting means 24, and the same effect can be obtained by controlling and emitting the temperature of the black body surface. Further, although the radiation temperature detecting means 24 for measuring the radiation temperature is used to detect the emissivity, the same effect can be obtained by providing another infrared light receiving element. The infrared rays emitted by the infrared ray emitting means 25 are arranged so that they can be reflected by the side surface of the cooking container 20 and enter the radiation temperature detecting means 24. The control means 23 adjusts the magnitude of the high frequency current supplied to the heating means 22 according to the temperature information of the temperature calculation means 26.
Alternatively, the power supplied to the heating means 22 is controlled. As the radiation temperature detecting means 24, a sensor such as a pyroelectric element or a thermopile capable of detecting infrared rays can be used.
【0016】以下、本実施例の動作について説明する。
図示していない電源を投入し、操作スイッチで所定の温
度を設定すると、制御手段23が加熱手段22に電力を
供給する。加熱手段22に電力が供給されると、加熱手
段22から誘導磁界が発せられ、トッププレートである
鍋裁置部21上の調理容器20が誘導加熱される。この
誘導加熱によって調理容器20の温度が上昇し、調理容
器20内の被加熱物が調理される。このとき、制御手段
23は、温度演算手段26からの温度情報によって、被
加熱物の調理の進行状態を把握でき、調理の進行状態に
応じて加熱手段22に供給する電力を調整するものであ
る。こうして、調理容器20内の被調理物は調理される
ものである。前記放射温度検出手段24は、調理容器2
0の底面から放射される赤外線量を検出して温度を検知
しているものである。調理容器20の温度は、約30℃
〜230℃であり、この温度のピーク波長はステファン
・ボルツマンの法則により約10μm〜6μmである。
鍋裁置部21がセラミックス材料からなるトッププレー
トの透過波長は、約4μm以下であり、調理温度域の赤
外線は透過しないものである。つまり、鍋裁置部21の
下方に放射温度検出手段24を設けた場合、赤外線の透
過はなく赤外線量は小さく温度検出は困難なものであ
る。本実施例では、放射温度検出手段24を調理容器2
0の側方に配置して、調理容器から放射される赤外線を
検出するものである。The operation of this embodiment will be described below.
When a power source (not shown) is turned on and a predetermined temperature is set by the operation switch, the control means 23 supplies electric power to the heating means 22. When electric power is supplied to the heating means 22, an induction magnetic field is emitted from the heating means 22, and the cooking container 20 on the pan cutting part 21 which is a top plate is induction-heated. This induction heating raises the temperature of the cooking container 20, and the object to be heated in the cooking container 20 is cooked. At this time, the control means 23 can grasp the progress of cooking of the object to be heated by the temperature information from the temperature calculating means 26, and adjust the electric power supplied to the heating means 22 according to the progress of cooking. . In this way, the food to be cooked in the cooking container 20 is cooked. The radiation temperature detecting means 24 is used for the cooking container 2
The temperature is detected by detecting the amount of infrared rays radiated from the bottom surface of 0. The temperature of the cooking container 20 is about 30 ° C.
˜230 ° C., and the peak wavelength at this temperature is about 10 μm to 6 μm according to Stefan-Boltzmann's law.
The transmission wavelength of the top plate made of the ceramic material of the pan cutting portion 21 is about 4 μm or less, and infrared rays in the cooking temperature range are not transmitted. That is, when the radiation temperature detecting means 24 is provided below the pan placing portion 21, there is no transmission of infrared rays, the amount of infrared rays is small, and temperature detection is difficult. In this embodiment, the radiation temperature detecting means 24 is used as the cooking container 2
It is placed on the side of 0 to detect infrared rays emitted from the cooking container.
【0017】前記調理容器20は、アルミや鉄、またス
テンレスの複層鍋等複数の鍋が用いられる。調理容器2
0の材質や面の形状によって放射率が異なり、同一温度
でも放射される赤外線量が異なり、温度検出誤差となる
ものである。As the cooking container 20, a plurality of pans such as a multi-layer pan made of aluminum, iron, or stainless is used. Cooking container 2
The emissivity differs depending on the material and surface shape of 0, and the amount of infrared rays radiated at the same temperature is different, resulting in a temperature detection error.
【0018】このとき本実施例では、調理容器20の側
面に赤外線を発光する赤外線発光手段27を発光または
消灯させる。この赤外線は調理容器20に反射して放射
温度検出手段24に入射されるものである。前記赤外線
発光手段が発光の場合は、調理容器から放射される赤外
線と、赤外線発光手段27から放射された赤外線が調理
容器の反射率によって反射された赤外線が加わって入射
される。前記赤外線発光手段27が消灯の場合は、調理
容器20から放射される赤外線のみとなる。放射温度検
出手段24は、これらの赤外線量から温度として出力さ
れる。この発光時と消灯時の温度差から調理容器20の
反射率が求められる。調理容器20の材質は金属が主で
あり、赤外線の吸収がほとんど無視できるので、放射率
=1−反射率より放射率が得られるものである。この放
射率から温度演算手段26は、放射温度検出手段24か
ら出力を補正して調理容器20の側面温度を求めている
ものである。つまり、放射温度検出手段24は調理容器
20の側面温度を非接触に検知して、赤外線発光手段2
5によって、調理容器20の放射率を演算して求めてい
るため、調理容器20の温度を正確に検知することがで
きるものである。このため、制御手段23の加熱手段2
2に対する電力制御も、調理容器20の温度変化に即応
したものとなっている。At this time, in this embodiment, the infrared light emitting means 27 for emitting infrared light is turned on or off on the side surface of the cooking container 20. This infrared ray is reflected by the cooking container 20 and is incident on the radiation temperature detecting means 24. When the infrared ray emitting means emits light, the infrared ray emitted from the cooking vessel and the infrared ray emitted from the infrared ray emitting means 27 are incident on the infrared ray reflected by the reflectance of the cooking vessel. When the infrared light emitting means 27 is turned off, only infrared light emitted from the cooking container 20 is emitted. The radiation temperature detecting means 24 outputs the temperature from these infrared ray amounts. The reflectance of the cooking container 20 is obtained from the temperature difference between when the light is emitted and when the light is turned off. Since the material of the cooking container 20 is mainly metal and the absorption of infrared rays can be almost ignored, the emissivity can be obtained from emissivity = 1−reflectivity. From this emissivity, the temperature calculation means 26 corrects the output from the radiation temperature detection means 24 to obtain the side surface temperature of the cooking container 20. That is, the radiation temperature detection means 24 detects the side surface temperature of the cooking container 20 in a non-contact manner, and the infrared light emission means 2
5, the emissivity of the cooking container 20 is calculated and obtained, so that the temperature of the cooking container 20 can be accurately detected. Therefore, the heating means 2 of the control means 23
The power control for 2 also responds immediately to the temperature change of the cooking container 20.
【0019】以上のように本実施例によれば、調理容器
20の放射率を検出して調理容器20の放射温度を補正
する構成としているため、調理容器20の材質を制限す
ることなく正確な温度制御ができる加熱調理器を実現す
るものである。As described above, according to the present embodiment, since the emissivity of the cooking container 20 is detected and the radiant temperature of the cooking container 20 is corrected, the material of the cooking container 20 is not limited and is accurately measured. It is intended to realize a heating cooker capable of controlling temperature.
【0020】(実施例2)続いて本発明の第2の実施例
について説明する。図3は、本実施例の構成を示す断面
図である。本発明の第2の実施例は、実施例1との相違
点は、放射温度検出手段は、背面に黒体面27を備えた
点である。Second Embodiment Next, a second embodiment of the present invention will be described. FIG. 3 is a sectional view showing the structure of this embodiment. The second embodiment of the present invention is different from the first embodiment in that the radiation temperature detecting means has a black body surface 27 on the back surface.
【0021】黒体面27は、放射温度検出手段24の背
面に設けられている。加熱調理器本体のケースに黒体塗
料などで塗装して黒体面を構成している。放射温度検出
手段24は、調理容器20に対向して配置されている。
放射温度検出手段24に入射される赤外線は、調理容器
20から放射される赤外線だけでなく、放射温度検出手
段24の背面の赤外線も調理容器20に反射されて入射
される。特に調理容器20がステンレスなど反射率が高
い材質では、調理容器20に反射される放射温度検出手
段24の背光面からの赤外線も多く入射される。また加
熱調理器が使用されるはキッチンなどでの壁面は、ステ
ンレスなど鏡面が用いられることが多く、この壁面に反
射した調理容器20以外の赤外線が多く存在することと
なり、温度検出に誤差が生じるものである。本実施例で
は、背光面から反射される赤外線を防止して、正確に調
理容器20の温度が検出できるものである。The black body surface 27 is provided on the back surface of the radiation temperature detecting means 24. The body of the cooking device is painted with black body paint to form a black body surface. The radiation temperature detecting means 24 is arranged so as to face the cooking container 20.
The infrared rays incident on the radiant temperature detecting means 24 are not only the infrared rays radiated from the cooking container 20 but also the infrared rays on the back surface of the radiant temperature detecting means 24 are reflected and incident on the cooking container 20. Especially when the cooking container 20 is made of a material having a high reflectance such as stainless steel, a large amount of infrared rays from the back light surface of the radiation temperature detecting means 24 reflected by the cooking container 20 are also incident. In addition, a wall surface in a kitchen or the like where a heating cooker is used is often a mirror surface such as stainless steel, and a large amount of infrared rays other than the cooking container 20 reflected on the wall surface causes an error in temperature detection. It is a thing. In this embodiment, the temperature of the cooking container 20 can be accurately detected by preventing infrared rays reflected from the back light surface.
【0022】放射温度検出手段24の背光面に、反射を
防止する黒体面27を設けることにより、キッチンでの
壁面から入射される赤外線を防止することができるもの
である。前記黒体面27は放射率が高いため、黒体面2
7で反射される赤外線はないが、反面黒体面27の温度
の赤外線が放射されていることとなる。この黒体面27
の温度と放射温度検出手段24の温度はほぼ平衡な状態
であり、この黒体面27から放射される赤外線の影響は
ほとんど受けることはなく、他の赤外線の入射を防止す
ることができるものである。By providing a black body surface 27 for preventing reflection on the back light surface of the radiation temperature detecting means 24, it is possible to prevent infrared rays incident from the wall surface in the kitchen. Since the black body surface 27 has a high emissivity, the black body surface 2
Although there is no infrared ray reflected by 7, the infrared ray at the temperature of the black body surface 27 is emitted. This black body surface 27
Is substantially in equilibrium with the temperature of the radiation temperature detecting means 24, and the infrared rays radiated from the black body surface 27 are hardly affected, and the incidence of other infrared rays can be prevented. .
【0023】以上のように本実施例によれば、黒体面2
7によって、放射温度検出手段24の背光から入射され
る外乱となる赤外線を防止することができるため、正確
に調理容器20の温度が検出できる加熱調理器を実現す
るものである。As described above, according to this embodiment, the black body surface 2
7, it is possible to prevent infrared rays, which is a disturbance and is incident from the back light of the radiation temperature detecting means 24, so that a heating cooker capable of accurately detecting the temperature of the cooking container 20 is realized.
【0024】(実施例3)続いて本発明の第3の実施例
について説明する。図4は、本実施例の構成を示す平面
図である。本実施例では、放射温度検出手段24と赤外
線発光手段25を覆うように断熱する断熱手段28を設
けている。断熱手段28は、ガラスウールなど熱伝導率
の低い材料で構成して、前記放射温度検出手段24と赤
外線発光手段25を覆うように構成されている。放射温
度検出手段24は、被測定面の温度と自己の温度と差が
出力されるものであり、この自己温度をサーミスタなど
の温度検出器で検出して、被測定面の温度を算出してい
るものである。この温度検出器は赤外線を受光するチッ
プ面の近傍に設けられているが、温度検出器の熱応答性
により、チップ面と温度検出器とに温度差が生じる。特
に急激に温度変化が起こる場合には、測定結果に誤差が
大きく生じることになる。この温度変化である外乱の熱
は、加熱中の調理容器20から輻射される熱によるもの
が多い。また加熱調理器近傍に置かれているの高温であ
る加熱以外の他の鍋などから輻射される。加熱調理器の
調理容器20の温度を高精度に検出するためには、放射
温度検出手段24を遮熱する構成が必要となる。つま
り、断熱手段28は、調理容器20から輻射される熱を
遮断して、急激な温度変化を低減できるものである。(Embodiment 3) Next, a third embodiment of the present invention will be described. FIG. 4 is a plan view showing the configuration of this embodiment. In this embodiment, heat insulating means 28 is provided so as to cover the radiation temperature detecting means 24 and the infrared ray emitting means 25 so as to insulate them. The heat insulating means 28 is made of a material having a low thermal conductivity such as glass wool, and is configured to cover the radiation temperature detecting means 24 and the infrared light emitting means 25. The radiation temperature detecting means 24 outputs the difference between the temperature of the surface to be measured and its own temperature, and detects this self temperature with a temperature detector such as a thermistor to calculate the temperature of the surface to be measured. There is something. Although this temperature detector is provided in the vicinity of the chip surface that receives infrared rays, the thermal response of the temperature detector causes a temperature difference between the chip surface and the temperature detector. Especially when the temperature changes abruptly, a large error will occur in the measurement result. The heat of the disturbance, which is the temperature change, is mostly due to the heat radiated from the cooking container 20 during heating. Also, radiation is performed from a pot or the like placed near the cooking device other than the high temperature heating. In order to detect the temperature of the cooking container 20 of the heating cooker with high accuracy, it is necessary to shield the radiation temperature detecting means 24. That is, the heat insulating means 28 can block the heat radiated from the cooking container 20 and reduce a sudden temperature change.
【0025】以上のように本実施例では、断熱手段28
によって、調理容器20から輻射される熱を遮断して、
外乱の熱の影響を少なくして、より調理容器の温度が正
確に検出できる加熱調理器を実現できるものである。As described above, in this embodiment, the heat insulating means 28
Shuts off the heat radiated from the cooking container 20,
It is possible to realize a heating cooker that can more accurately detect the temperature of a cooking container by reducing the influence of heat of disturbance.
【0026】(実施例4)続いて本発明の第4の実施例
について説明する。図5は、本実施例の構成を示す平面
図である。本実施例では、放射温度検出手段24と赤外
線発光手段25を調理容器の側面と対向するように可動
手段29を設けて、調理容器20の側面の温度が検出で
きるようにしたものである。可動手段29は、モータな
どで回転制御して左右に可動できる構成としているもの
であり、放射温度検出手段24と赤外線発光手段25と
の角度は一定として、同時に可動できるものである。Fourth Embodiment Next, a fourth embodiment of the present invention will be described. FIG. 5 is a plan view showing the configuration of this embodiment. In the present embodiment, the radiation temperature detecting means 24 and the infrared emitting means 25 are provided with movable means 29 so as to face the side surface of the cooking container so that the temperature of the side surface of the cooking container 20 can be detected. The movable means 29 is configured such that it can be rotated left and right by rotation control by a motor or the like, and the radiation temperature detection means 24 and the infrared light emitting means 25 can be moved at the same time with a constant angle.
【0027】以下、本実施例の動作について説明する。
調理容器20は鍋裁置部21に必ずしも中心に置かれる
とは限らないものである。調理容器20が中心部に裁置
されない場合は、放射温度検出手段24と調理容器20
の光軸がずれた状態となり、正確に調理容器20から放
射される赤外線が検出されなくなる。また同様に赤外線
発光手段25と調理容器20との光軸がずれることとな
り、正確に放射率が検出できなくなる。可動手段29
は、加熱開始時に設定された例えば30°左右に回転さ
せて放射温度検出手段24のピーク温度となる角度で停
止される。この動作を繰り返してピーク温度となる角度
を決定する。調理容器20と放射温度検出手段24が平
行に対向した角度の時、放射温度検出手段24の出力は
最大となるものである。この検出角度で停止された後、
加熱が開始され調理が進行できるものである。The operation of this embodiment will be described below.
The cooking container 20 is not always placed at the center of the pan cutting unit 21. When the cooking container 20 is not placed in the center, the radiation temperature detecting means 24 and the cooking container 20 are placed.
The optical axis of is shifted and the infrared rays radiated from the cooking container 20 cannot be accurately detected. Similarly, the optical axes of the infrared light emitting means 25 and the cooking container 20 are deviated, and the emissivity cannot be accurately detected. Movable means 29
Is stopped at the angle which becomes the peak temperature of the radiation temperature detecting means 24 by rotating it to the left and right, for example, 30 ° set at the start of heating. This operation is repeated to determine the angle at which the peak temperature is reached. When the cooking container 20 and the radiation temperature detecting means 24 are parallel to each other at an angle, the output of the radiation temperature detecting means 24 becomes maximum. After being stopped at this detection angle,
Heating is started and cooking can proceed.
【0028】つまり本実施例によれば、自動的に調理容
器20と放射温度検出手段24と赤外線発光手段25を
対向することができるため、正確に調理容器20が検出
できるものである。That is, according to this embodiment, the cooking container 20, the radiation temperature detecting means 24, and the infrared light emitting means 25 can be automatically opposed to each other, so that the cooking container 20 can be accurately detected.
【0029】(実施例5)続いて本発明の第5の実施例
について説明する。図6は、本実施例の構成を示す断面
図である。本実施例では、加熱制御手段23は、加熱開
始から放射温度検出手段24または赤外線発光手段25
の出力が確定するまでは低い加熱量で制御する待機手段
30とを備えている。(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described. FIG. 6 is a sectional view showing the configuration of this embodiment. In the present embodiment, the heating control means 23 operates from the start of heating to the radiation temperature detecting means 24 or the infrared light emitting means 25.
It is provided with a standby unit 30 that controls with a low heating amount until the output of is determined.
【0030】以下、本実施例の動作を説明する。図示し
ていない操作スイッチが押されると加熱手段22によっ
て、調理容器20の温度は上昇する。これと同時に放射
温度検出手段24と赤外線発光手段25は調理容器20
の温度を検出している。この温度検出ができていない状
態で、加熱を続けると調理容器20の温度は異常に高く
なり、調理容器20内の調理物が焦げたりすることがあ
る。また調理物のない状態で加熱が開始されると、急激
に調理容器20の温度は上昇するものである。つまり、
加熱開始から数kWの高い加熱量で調理容器20を加熱す
ると、調理容器20は急激に温度上昇する。この温度上
昇の変化は、加熱量に比例するものであり、加熱量を数
百W程度にすることにより、異常な温度上昇は防止する
ことができる。この温度上昇を防止するために待機手段
30は、放射温度検出手段24または赤外線発光手段2
5の出力が安定するまでは、低い加熱量で調理容器20
を加熱するものである。The operation of this embodiment will be described below. When an operation switch (not shown) is pressed, the heating means 22 raises the temperature of the cooking container 20. At the same time, the radiation temperature detecting means 24 and the infrared light emitting means 25 serve as the cooking container 20.
The temperature of is detected. If heating is continued in a state where the temperature cannot be detected, the temperature of the cooking container 20 becomes abnormally high, and the food in the cooking container 20 may be burnt. Further, when heating is started in the state where there is no food to be cooked, the temperature of the cooking container 20 rapidly rises. That is,
When the cooking container 20 is heated with a high heating amount of several kW from the start of heating, the temperature of the cooking container 20 rapidly rises. This change in temperature rise is proportional to the heating amount, and by setting the heating amount to about several hundred W, an abnormal temperature rise can be prevented. In order to prevent this temperature rise, the standby means 30 includes the radiation temperature detecting means 24 or the infrared light emitting means 2.
Until the output of 5 becomes stable, the cooking container 20 is heated with a low heating amount.
Is to heat.
【0031】従って本実施例によれば、加熱開始から放
射温度検出手段24または赤外線発光手段25の出力が
安定するまでは、低い加熱量で調理容器20を加熱する
ようにして、調理容器20の異常温度上昇を防止するよ
うにしているものである
(実施例6)次に本発明の第6の実施例について説明す
る。図7は、本実施例の構成を示す断面図である。本実
施例では、放射温度検出手段24と赤外線発光手段25
は、鍋裁置部21と平坦になるように収納部31を設け
ているものである。前記収納部31は、放射温度検出手
段24と赤外線発光手段25とを上下に可動して、加熱
調理時に上部に移動して突出させて、調理容器20と対
向させるものである。この上下の可動源としては、モー
タなどの駆動している。なお、可動源としては上下に可
動できれば良く、バネを利用することでも同様な効果が
得られるものである。Therefore, according to the present embodiment, from the start of heating until the output of the radiation temperature detecting means 24 or the infrared light emitting means 25 becomes stable, the cooking container 20 is heated with a low heating amount so that the cooking container 20 is heated. A sixth embodiment of the present invention will now be described. FIG. 7 is a sectional view showing the structure of this embodiment. In this embodiment, the radiation temperature detecting means 24 and the infrared light emitting means 25
The storage unit 31 is provided so as to be flat with the pan cutting unit 21. The storage section 31 moves the radiation temperature detecting means 24 and the infrared light emitting means 25 up and down, moves to the upper part during heating and cooking so as to project, and faces the cooking container 20. A motor or the like is driven as the movable source of the vertical movement. It should be noted that the movable source is only required to be movable up and down, and the same effect can be obtained by using a spring.
【0032】以下本実施例の動作について説明する。図
示していない操作スイッチが押されると、収納部31
は、モータを駆動して放射温度検出手段24と赤外線発
光手段25とを上方向に移動させる。上方向に移動する
ことで前記放射温度検出手段24と赤外線発光手段25
は、調理容器20と対向して温度が検出できる。また加
熱が終了すると、収納部31のモータが駆動して、前記
放射温度検出手段24と赤外線発光手段25は下方に移
動する。下方に移動すると共に上部が覆われて上部から
の塵埃を防止している。つまり、使用しない状態では、
放射温度検出手段24の受光面や赤外線発光手段25の
発光面にホコリなどの塵埃が付着することが防止でき
る。また鍋裁置部21を清掃する際に突出された部分が
なく、清掃を容易にすることができるものである。The operation of this embodiment will be described below. When an operation switch (not shown) is pressed, the storage unit 31
Drives the motor to move the radiation temperature detecting means 24 and the infrared light emitting means 25 upward. By moving upward, the radiation temperature detecting means 24 and the infrared ray emitting means 25
Can detect the temperature by facing the cooking container 20. When the heating is completed, the motor of the storage unit 31 is driven, and the radiation temperature detecting means 24 and the infrared light emitting means 25 move downward. While moving downward, the upper part is covered to prevent dust from the upper part. In other words, when not in use,
It is possible to prevent dust such as dust from adhering to the light receiving surface of the radiation temperature detecting means 24 and the light emitting surface of the infrared light emitting means 25. In addition, there is no protruding portion when cleaning the pot cutting portion 21, and cleaning can be facilitated.
【0033】なお、上下に移動する際に、前記発光面や
受光面の光学面にペーパーなどで構成した清掃布に摺動
させて清掃することで、より清掃できることも考えられ
る。It should be noted that it may be possible to further clean by sliding the cleaning cloth made of paper or the like on the optical surfaces of the light emitting surface and the light receiving surface to clean it when moving up and down.
【0034】従って本実施例によれば、加熱時以外に収
納部31によって突出をなくすと共に、調理で使用しな
い間に塵埃が付着することが防止できるものであり、加
熱時に正確に温度検出ができるものである。Therefore, according to the present embodiment, it is possible to eliminate the protrusion by the storage portion 31 except when heating, and to prevent dust from adhering when not used for cooking, so that the temperature can be accurately detected during heating. It is a thing.
【0035】(実施例7)次に本発明の第6の実施例に
ついて説明する。図8は、本実施例の構成を示す赤外線
発光手段近傍の平面図である。本実施例では、赤外線発
光手段25は、光学面の開閉するチョッパ32を設けて
いる。前記チョッパ32は、赤外線発光手段25の光学
前面に、スリットを設けた回転羽で構成している。この
回転羽を回転させることで、光学面を開閉して赤外線の
放射を制御するものである。(Embodiment 7) Next, a sixth embodiment of the present invention will be described. FIG. 8 is a plan view of the vicinity of the infrared light emitting means showing the configuration of this embodiment. In the present embodiment, the infrared light emitting means 25 is provided with a chopper 32 that opens and closes the optical surface. The chopper 32 is composed of a rotary wing provided with a slit on the optical front surface of the infrared light emitting means 25. By rotating this rotary blade, the optical surface is opened and closed to control the emission of infrared rays.
【0036】なお、チョッパ32は、スリットを設けた
羽を回転させているが、例えば羽を往復運動させて光学
面を開閉できる構成にしても同様な効果がえられ本実施
例の構成に限られるものではない。Although the chopper 32 rotates the blade provided with slits, the same effect can be obtained even if the optical surface is opened and closed by reciprocating the blade, for example. It is not something that can be done.
【0037】以下本実施例の動作について説明する。操
作スイッチが押され温度検出が開始されると、赤外線検
出手段25に通電され設定温度に保たれる。チョッパ3
2は、モータが回転してモータ軸に取り付けられたスリ
ット付きの羽が回転する。この羽が回転することによ
り、赤外線発光手段25の赤外線が開閉され、調理容器
20に向かって放射される赤外線が制御できるものであ
る。前記羽のスリットが開いている場合は、赤外線発光
手段25の赤外線は、調理容器20に放射される。また
前記羽のスリットが閉じている場合は、赤外線が羽に閉
じこめられて調理容器20には放射されない。つまり、
チョッパ32を回転させることで、赤外線発光手段25
の点灯または消灯を繰り返し動作させることができる。
高速に赤外線発光手段25を制御することができ、放射
率の検出が高速化できるものである。高速化することで
複数のデータから平均値を求めるなど放射率の算出の精
度が向上できる。The operation of this embodiment will be described below. When the operation switch is pressed and the temperature detection is started, the infrared detecting means 25 is energized and maintained at the set temperature. Chopper 3
In No. 2, the motor rotates and the blades with slits attached to the motor shaft rotate. By rotating the wings, the infrared rays of the infrared light emitting means 25 are opened and closed, and the infrared rays emitted toward the cooking container 20 can be controlled. When the slits of the wings are open, the infrared rays of the infrared ray emitting means 25 are radiated to the cooking container 20. When the slits of the wings are closed, infrared rays are trapped in the wings and are not radiated to the cooking container 20. That is,
By rotating the chopper 32, the infrared light emitting means 25
Can be repeatedly turned on or off.
The infrared light emitting means 25 can be controlled at high speed, and the emissivity can be detected at high speed. By increasing the speed, it is possible to improve the accuracy of emissivity calculation such as obtaining an average value from a plurality of data.
【0038】以上本実施例によれば、赤外線発光手段2
5の光学前面にチョッパ32を設けることにより、放射
率検出の高速化が図れ、より正確な放射率の検出ができ
る加熱調理器を実現できるものである。As described above, according to this embodiment, the infrared light emitting means 2
By providing the chopper 32 on the optical front surface of No. 5, the emissivity detection can be speeded up, and a heating cooker capable of more accurate emissivity detection can be realized.
【0039】(実施例8)次に本発明の第6の実施例に
ついて説明する。図9は、本実施例の構成を示す断面図
である。本実施例では、調理容器の底面温度を検出する
底面温度検出手段33を設けているものである。前記底
面温度検出手段33は、トッププレートである鍋裁置部
21の下面中心部に接して構成され、サーミスタによっ
てトッププレートを介して調理容器20の底面温度を検
出している。(Embodiment 8) Next, a sixth embodiment of the present invention will be described. FIG. 9 is a sectional view showing the structure of this embodiment. In this embodiment, the bottom surface temperature detecting means 33 for detecting the bottom surface temperature of the cooking container is provided. The bottom surface temperature detecting means 33 is configured to be in contact with the center of the bottom surface of the pan cutting portion 21 which is a top plate, and detects the bottom surface temperature of the cooking container 20 via the top plate by a thermistor.
【0040】以下本実施例の動作について説明する。図
示していない操作スイッチが押されると、前記底面温度
検出手段33は、調理容器21の底面温度を検出する。
これと同時に放射温度検出手段24と赤外線発光手段2
5の出力により温度演算手段26で検出している。この
温度演算手段26の出力温度と前記底面温度検出手段3
3で検出した温度との差が所定値以上である場合は、温
度検出の異常を報知する。鍋底温度検出手段34の故障
は、断線検知など異常に抵抗値が高いことを検出すれば
検知できるものである。反面、温度演算手段26で求ま
る温度は、光学面の汚れに影響されるもので、例えば汚
れると赤外線の入射量少なくなり、低い温度値しか得ら
れない。このように、設定値以上温度差がある場合は、
異常を報知させることができるものである。なお、加熱
中の温度上昇の変化値で求めても同様な効果が得られ、
さらに積算電力量を用いて温度上昇率を求めることでも
同様な効果があり、また異常を検出した時点で加熱を停
止させてより安全性を高めることも考えられる。The operation of this embodiment will be described below. When an operation switch (not shown) is pressed, the bottom surface temperature detecting means 33 detects the bottom surface temperature of the cooking container 21.
At the same time, the radiation temperature detecting means 24 and the infrared emitting means 2
The temperature calculation means 26 detects the output from the output 5. The output temperature of the temperature calculating means 26 and the bottom surface temperature detecting means 3
If the difference from the temperature detected in 3 is equal to or more than a predetermined value, the temperature detection abnormality is notified. The failure of the pan bottom temperature detecting means 34 can be detected by detecting an abnormally high resistance value such as detection of disconnection. On the other hand, the temperature calculated by the temperature calculation means 26 is affected by the dirt on the optical surface. In this way, if there is a temperature difference above the set value,
The abnormality can be reported. It should be noted that the same effect can be obtained by obtaining the change value of the temperature rise during heating,
Further, the same effect can be obtained by obtaining the temperature rise rate by using the integrated electric energy, and it is considered that the heating is stopped at the time when the abnormality is detected to further improve the safety.
【0041】以上本実施例によれば、鍋底面温度検出手
段33と温度演算手段26との温度差で放射温度検出手
段24または赤外線発光手段25の異常を検出できるも
のであり、異常を報知してより安全性の高い加熱調理器
が提供できるものである。As described above, according to the present embodiment, the temperature difference between the pan bottom surface temperature detecting means 33 and the temperature calculating means 26 can detect an abnormality in the radiation temperature detecting means 24 or the infrared ray emitting means 25. It is possible to provide a more safe heating cooker.
【0042】[0042]
【発明の効果】本発明によれば、調理容器の材質や表面
形状による放射率の違いを検出するようにして、正確な
温度制御ができる加熱調理器を実現することができる。According to the present invention, it is possible to realize a heating cooker capable of performing accurate temperature control by detecting the difference in emissivity depending on the material and surface shape of the cooking container.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明の第1の実施例である加熱調理器の構成
を示す断面図FIG. 1 is a cross-sectional view showing the configuration of a heating cooker that is a first embodiment of the present invention.
【図2】同、第1の実施例である加熱調理器の構成を示
す平面図FIG. 2 is a plan view showing the configuration of the heating cooker according to the first embodiment.
【図3】同、第2の実施例である加熱調理器の構成を示
す平面図FIG. 3 is a plan view showing the configuration of the heating cooker according to the second embodiment.
【図4】同、第3の実施例である加熱調理器の構成を示
す断面図FIG. 4 is a sectional view showing the configuration of the heating cooker according to the third embodiment.
【図5】同、第4の実施例である加熱調理器の構成を示
す断面図FIG. 5 is a sectional view showing the configuration of the heating cooker according to the fourth embodiment.
【図6】同、第5の実施例である加熱調理器の構成を示
す断面図FIG. 6 is a sectional view showing the configuration of the heating cooker according to the fifth embodiment.
【図7】同、第6の実施例である加熱調理器の構成を示
す断面図FIG. 7 is a sectional view showing the configuration of the heating cooker according to the sixth embodiment.
【図8】同、第7の実施例である加熱調理器の赤外線発
光手段近傍の構成を示す平面図FIG. 8 is a plan view showing a structure in the vicinity of infrared emitting means of the cooking device according to the seventh embodiment.
【図9】同、第8の実施例である加熱調理器の構成を示
す断面図FIG. 9 is a sectional view showing the configuration of the heating cooker according to the eighth embodiment.
【図10】従来例である加熱調理器の構成を示す断面図FIG. 10 is a cross-sectional view showing the configuration of a conventional heating cooker.
20 調理容器 21 鍋裁置部 22 加熱手段 23 加熱制御手段 24 放射温度検出手段 25 赤外線発光手段 26 温度演算手段 27 黒体面 28 断熱手段 29 可動手段 30 待機手段 31 収納部 32 チョッパ 33 底面温度検出手段 20 cooking containers 21 pot holder 22 Heating means 23 Heating control means 24 Radiation temperature detection means 25 Infrared emitting means 26 Temperature calculation means 27 black body 28 Heat insulation means 29 Movable means 30 standby means 31 Storage 32 chopper 33 Bottom temperature detection means
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) G01J 5/62 G01J 5/62 C H05B 6/12 318 H05B 6/12 318 ─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. 7 Identification Code FI Theme Coat (Reference) G01J 5/62 G01J 5/62 C H05B 6/12 318 H05B 6/12 318
Claims (8)
容器を載置する鍋載置部と、前記調理容器を加熱する加
熱手段と、前記加熱手段に供給する電力を制御する加熱
制御手段と、前記調理容器の側面から放射される赤外線
を検出する放射温度検出手段と、前記調理容器の側面に
向けて赤外線を断続に放射する赤外線発光手段と、前記
放射温度検出手段の出力により調理容器の放射率を演算
して放射率を補正する温度演算手段とを備えて、前記調
理容器の温度を制御する加熱調理器。1. A cooking container for heating a cooked food, a pan mounting portion for mounting the cooking container, a heating means for heating the cooking container, and a heating control means for controlling electric power supplied to the heating means. A radiation temperature detecting means for detecting infrared rays emitted from the side surface of the cooking container, an infrared light emitting means for intermittently emitting infrared rays toward the side surface of the cooking container, and a cooking container based on the output of the radiation temperature detecting means. And a temperature calculation means for correcting the emissivity of the cooking container to control the temperature of the cooking container.
けた請求項1に記載した加熱調理器。2. The cooking device according to claim 1, wherein the radiation temperature detecting means has a black body surface on the back surface.
熱する断熱手段を設けた請求項1または2に記載した加
熱調理器。3. The cooking device according to claim 1, further comprising heat insulating means for insulating the radiation temperature detecting means and the infrared emitting means.
理容器の側面と対向するように可動手段を設けた請求項
1〜3のいずれか1項に記載した加熱調理器。4. The heating cooker according to claim 1, wherein the radiant temperature detecting means and the infrared emitting means are provided with movable means so as to face a side surface of the cooking container.
光手段または放射温度検出手段の出力が確定するまでは
低い加熱量で制御する待機手段とを設けた請求項1〜4
のいずれか1項に記載した加熱調理器。5. The heating control means comprises standby means for controlling with a low heating amount from the start of heating until the output of the infrared light emitting means or the radiation temperature detecting means is determined.
The heating cooker described in any one of 1.
鍋裁置部と平坦になるように収納部を設けて、加熱調理
時に収納部より突出して調理容器の温度が検出できるよ
うにした請求項1〜5のいずれか1項に記載した加熱調
理器。6. The radiation temperature detecting means and the infrared light emitting means,
The heating cooker according to any one of claims 1 to 5, wherein a storage unit is provided so as to be flat with the pot placement unit, and the temperature of the cooking container can be detected by protruding from the storage unit during heating and cooking. .
ョッパを設けた請求項1〜6のいずれか1項に記載した
加熱調理器。7. The heating cooker according to claim 1, wherein the infrared light emitting means is provided with a chopper for opening and closing an optical surface.
検出手段を設けて、設定値以上温度演算手段の出力と差
がある場合に異常報知させる請求項1〜7いずれか1項
に記載した加熱調理器。8. The bottom temperature detecting means for detecting the bottom temperature of the cooking container is provided to notify an abnormality when there is a difference from the output of the temperature calculating means above a set value. Heating cooker.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2001327331A JP2003130366A (en) | 2001-10-25 | 2001-10-25 | Heating cooker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001327331A JP2003130366A (en) | 2001-10-25 | 2001-10-25 | Heating cooker |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2003130366A true JP2003130366A (en) | 2003-05-08 |
Family
ID=19143577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001327331A Pending JP2003130366A (en) | 2001-10-25 | 2001-10-25 | Heating cooker |
Country Status (1)
Country | Link |
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JP (1) | JP2003130366A (en) |
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