JP3424046B2 - Cooking device - Google Patents

Cooking device

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Publication number
JP3424046B2
JP3424046B2 JP21821693A JP21821693A JP3424046B2 JP 3424046 B2 JP3424046 B2 JP 3424046B2 JP 21821693 A JP21821693 A JP 21821693A JP 21821693 A JP21821693 A JP 21821693A JP 3424046 B2 JP3424046 B2 JP 3424046B2
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JP
Japan
Prior art keywords
plate
hot plate
heat
heating
resistant alloy
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 - Fee Related
Application number
JP21821693A
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Japanese (ja)
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JPH0767785A (en
Inventor
忠視 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP21821693A priority Critical patent/JP3424046B2/en
Publication of JPH0767785A publication Critical patent/JPH0767785A/en
Application granted granted Critical
Publication of JP3424046B2 publication Critical patent/JP3424046B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)

Description

【発明の詳細な説明】 【0001】 【産業上の利用分野】本発明は、熱板を下方から熱源で
加熱する業務用調理器、特に、お好み焼き、焼きそば、
ホットケーキ、クレープ、焼肉などを熱板の上で直接加
熱調理する加熱調理器に関する。 【0002】 【従来の技術】従来、この種の加熱調理器の熱板の構成
を図4に示す。図に示すように電気ヒータ6の上に接し
てステンレス、鉄の鋳物またはセラミックなどで作製し
た厚み15〜20mmの厚板からなる熱板7を設置し、上
記の熱源で厚板を加熱し、その上に置かれた材料を加熱
調理していた。業務用調理器の場合には、熱源として上
記の電気ヒータの他に、ガスや石油のバーナも用いられ
ているが、熱板の温度制御や温度分布は、調理する人が
経験的に手動で熱源の火力を調節して行っていた。この
調整はかなり困難なもので、永年にわたる経験を必要と
していた。 【0003】また、家庭用加熱調理器としては、熱板を
電気ヒータで加熱し、熱板あるいは電気ヒータに温度セ
ンサを設け、この温度センサにより熱板の温度を制御す
る調理器が実開昭60−86231号公報に開示されて
いる。 【0004】 【発明が解決しようとする課題】しかし、上記のような
従来の加熱調理器では、熱伝導性の低いステンレス板や
鋳鉄で作製した厚板を用いていたため、加熱調理面全面
にわたる温度分布が不均一になるという問題があった。
このため調理物の調理品質も優れているとはいえなかっ
た。 【0005】また、温度分布が不均一であるために熱板
が熱歪を発生し、調理面の平面度が悪くなり、平面性を
保持するための表面の研磨に手間がかかるとともに、長
期間の使用に耐えないという問題があった。 【0006】また、熱板の裏面は直接、ガスや石油の炎
に曝されるので、酸化劣化が進行し、短期間に熱板が劣
化するという問題があった。 【0007】本発明はこのような課題を解決するもの
で、加熱調理面の温度分布が均一になり易い熱板を備え
た加熱調理器を提供することを目的とするものである。 【0008】そして、さらに熱板の耐久性を改善し、長
期の使用に耐える熱板を備えた加熱調理器を提供するも
のである。 【0009】 【課題を解決するための手段】上記目的を達成するため
の本発明は、耐熱合金板と銅板を交互に積層し、上下両
表面を耐熱合金板で構成した熱板と、熱板を加熱する加
熱手段とを設けるようにしたものである。 【0010】そして、前記熱板に冷却媒体が流れる冷却
パイプを接して設けたものである。 【0011】 【作用】上記の手段によれば、熱伝導率の悪い耐熱合金
板と熱伝導率の良い銅板とを交互に積層して組み合わせ
た構成とすることにより、熱板の面方向の熱拡散をよく
して、加熱面の温度分布の均一性を改善することができ
る。 【0012】例えば、熱膨張係数がほぼ同一であるオー
ステナイト系ステンレス鋼板と銅板を交互に積層するこ
とにより、層間で熱膨張による応力が発生し難い。さら
に、オーステナイト系ステンレス鋼板は層間のクリープ
特性を改善する。これらの層間特性により、積層された
熱板は長期間にわたって平面性を維持することができ、
耐久性の高い熱板を有する加熱調理器を提供できること
となる。 【0013】そして、上記の積層された熱板に冷却媒体
が流れる冷却パイプを接して設けることにより、冷却が
必要な場合には冷却パイプに冷却媒体を流して望ましい
速度で冷却し、きめ細かな調理を実現することができ
る。 【0014】 【実施例】以下に本発明の一実施例の加熱調理器を図面
を参照しながら説明する。 【0015】図1に本実施例の加熱調理器に用いられる
熱板の構成を示す。図に示すように、熱板1はステンレ
ス鋼などの耐熱合金板1a,1b,1cと高熱伝導性の
銅板2a,2bが交互に積層されて構成されており、上
下両表面には耐熱合金板1a,1cが配置されている。
さらに、上記熱板の下面には抵抗加熱素子3が熱伝導
性よく配設されている。上記の熱板1の端面は全てNi
ロウ材などからなる耐熱酸化性封止材で封止されてい
る。 【0016】上記の熱板では、耐熱合金板1a,1b,
1cとして厚さ0.5mmのSUS304板を、高熱伝導
性の銅板2a,2bとしては厚み1.0mmの無酸素銅板
を用いた。上記の耐熱合金板1a,1b,1cと高熱伝
導性の銅板2a,2bとを爆着などの加工方法を用いて
接着して積層し、直径150mmの円板に切断し、熱板1
を作製した。この熱板1の下面に渦巻状のシーズヒータ
(100vで1500w)をロウ付けして加熱調理器用
熱板を作製した。 【0017】上記の熱板と従来の比較例熱板との加熱面
の温度分布を測定し比較した。従来の比較例の熱板とし
ては上記の熱板と同一形状のSUS304製の円板の下
面に、上記の熱板と同一形状、同一容量の渦巻状シーズ
ヒータをロウ付けして作製した。比較測定の結果は、従
来の比較例の熱板の温度分布が571±43.0℃であ
るのに対し、上記の熱板は612±7.5℃で熱板全体
の温度が高く、温度分布が小さかった。 【0018】以下に上記の熱板が従来の比較例の熱板よ
り温度分布が良い理由を説明する。抵抗加熱素子3で発
生した熱は、最下層の耐熱合金板1aから2層目の銅板
2a、3層目の耐熱合金板1b、4層目の銅板2bをそ
れぞれ経由して加熱面を形成する最上層の5層目の耐熱
合金板1cへと伝達されて行く。1層目、3層目、5層
目を構成する耐熱合金板の熱伝導率は14〜20kcal/
m.h℃であり、2層目、4層目を構成する銅板の熱伝導
率は320〜332kcal/m.h℃である。このように上記
の熱板では、耐熱合金板の熱伝導よりも銅板の熱伝導が
大きいので、抵抗加熱素子から出た熱は、熱板を面に直
角に貫通するよりも、面に水平に拡散し易くなる。この
結果、最上層の加熱面の温度分布が良くなることとな
る。 【0019】また、本実施例の加熱調理器に使用する
板1の端部をNiロウ材で被覆して封止している。この
端面処理により熱板を構成している銅板の酸化を防止す
ることができ、熱板の耐久性を高めることができる。 【0020】なお、上記では5層構造の熱板を有する加
熱調理器について説明したが、本発明は上記5層構造の
熱板を有する加熱調理器に限定されるものではなく、3
層あるいはさらに多層構成の熱板を用いても同様の効果
が得られる。 【0021】つぎに、上記の熱板の端部の構成を図2に
示す。図に示すように、熱板1の端部を耐熱鋼からなる
熱板固定リング4を用いて熱板の端部全周を溶接して封
止している。この構成により熱板の耐久性をさらに高め
ることができる。 【0022】さらに、上記の熱板1を構成する耐熱合金
板1a,1b,1cに厚さ0.5mmのオーステナイト系
ステンレス鋼を用いることにより、熱板の耐久性を一層
高めることができる。つまり、オーステナイト系ステン
レス鋼の熱膨張係数は150×10-7/℃〜173×1
-7/℃であるのに対し、銅板の熱膨張係数も150×
10-7/℃〜173×10-7/℃でほぼ同一である。こ
のように熱膨張係数が等しい材料で構成された熱板は加
熱されても層間での熱応力を発生し難く、層間剥離は生
じにくい。さらに、5層構造の中間層にもオーステナイ
ト系ステンレス鋼板が入っているので、クリープ特性も
優れている。このため、上記の熱板は長期間にわたって
平面度を維持するので、平面度を保持するためのメンテ
ナンスを行う必要がなく、耐久性の高い熱板となる。 【0023】なお、上記の熱板に使用できるステンレス
鋼板としてはSUS201,301,302,303,
304,305,309,310,310S,316,
321などがあるが、望ましいのは、SUS304,3
10S,316,321である。特に、高温クリープを
避けるにはSUS310Sが望ましい。 【0024】以下に、高温クリープ性に関する評価結果
を説明する。評価サンプルとしては厚さ0.5mmのSU
S310S板4枚と厚さ1.0mmの銅板3枚を積層した
トータル厚さ5.0mmの7層構造の熱板と、厚さ0.5
mmのSUS310S板2枚と厚さ4.0mmの銅板1枚を
積層した比較例の熱板を用いた。上記の熱板に100
v、2500wの渦巻型シーズヒータをロウ付けした。
この熱板を30分オン、10分オフのサイクルを100
0回繰り返し、平面度を測定した。その結果、上記の熱
板の平面度は、0.2mm、比較例の熱板の平面度は1.
0mmで、上記の熱板は平面度を長期間にわたり保持する
ことができる。 【0025】図3に実施例の加熱調理器の要部の構成
を示す。本実施例に使用する熱板は基本的な構成は
記した熱板1と同様で、熱板1は耐熱合金板と熱伝導性
の銅板の積層体で構成され、その下面には抵抗加熱素子
3とが備えられているが、特徴とする点は、熱板の温度
を微調整するために、流体を流して冷却する冷却パイプ
5がロウ付けされている点である。上記のように構成さ
れた本実施例の加熱調理器の熱板は、調理時に抵抗加熱
素子3により加熱するとともに、調理時あるいは調理終
了後に冷却が必要な場合には冷却パイプ5に水または空
気を流して熱板を望ましい速度で冷却する。この構成に
より、きめ細かな調理を実現することができる。 【0026】 【発明の効果】以上の実施例の説明から明かなように
発明によれば、耐熱合金板と熱伝導性の銅板を交互に積
層し、上下両面は耐熱合金板で構成し、冷却手段を備え
ることにより、加熱調理器の熱板の温度を微調整すると
ともに、加熱と冷却とを任意に行うことのできる加熱調
理器を実現することができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a commercial cooker for heating a hot plate from below with a heat source, in particular, okonomiyaki, yakisoba,
The present invention relates to a cooking device for heating and cooking hot cakes, crepes, grilled meats and the like directly on a hot plate. 2. Description of the Related Art FIG. 4 shows a configuration of a heating plate of a conventional heating cooker of this type. As shown in the figure, a hot plate 7 made of a thick plate having a thickness of 15 to 20 mm made of stainless steel, iron casting, ceramic or the like is placed in contact with the electric heater 6 and the thick plate is heated by the above heat source. The ingredients placed on it were cooked. In the case of a commercial cooker, a gas or oil burner is also used as a heat source in addition to the above-described electric heater. The heat power of the heat source was adjusted. This adjustment was rather difficult and required years of experience. [0003] Further, as a domestic heating cooker, a cooker in which a hot plate is heated by an electric heater, a temperature sensor is provided on the hot plate or the electric heater, and the temperature of the hot plate is controlled by the temperature sensor is disclosed. No. 60-86231. [0004] However, in the above-described conventional heating cooker, a stainless steel plate or a thick plate made of cast iron having a low thermal conductivity is used, so that the temperature over the entire heating cooking surface is high. There is a problem that the distribution becomes uneven.
For this reason, the cooking quality of the cook was not considered to be excellent. [0005] Further, since the temperature distribution is non-uniform, thermal distortion occurs in the hot plate, the flatness of the cooking surface is deteriorated, and polishing of the surface to maintain the flatness requires time and effort. There was a problem that it could not stand the use of. Further, since the back surface of the hot plate is directly exposed to gas or petroleum flame, there is a problem that the oxidative deterioration proceeds and the hot plate deteriorates in a short time. [0007] The present invention is intended to solve such problems, it is an purpose of providing a temperature distribution in the cooking surface is provided with easily heat plate becomes uniform heating cooker. [0008] Then, to further improve the durability of the hot plate, is shall Hisage Kyosu heating cooker having a heating plate to withstand long-term use. [0009] According to one aspect of the present onset bright for achieving the above object, a heat-resistant alloy plate and the copper plate are alternately stacked, and heat plate that constitutes the upper and lower surface with a heat-resistant alloy plate, heat A heating means for heating the plate is provided. [0010] The cooling medium flows through the hot plate.
It is provided in contact with a pipe . [0011] According to the above-mentioned hand stage, by the structure where a combination of a good copper poor heat resistant alloy plate and the thermal conductivity of the thermal conductivity by alternately stacking, in the surface direction of the hot plate By improving the heat diffusion, the uniformity of the temperature distribution on the heating surface can be improved. For example, by alternately laminating austenitic stainless steel sheets and copper sheets having substantially the same coefficient of thermal expansion, stress due to thermal expansion between layers is less likely to occur. Further, the austenitic stainless steel sheet improves the creep characteristics between layers. Due to these interlayer properties, the laminated hot plate can maintain flatness for a long time,
A heating cooker having a hot plate with high durability can be provided. [0013] Then, a cooling medium is added to the stacked hot plates.
Cooling is provided by contacting a cooling pipe through which
It is desirable to flow cooling medium through the cooling pipe when necessary
Cooling at a speed, you can realize fine cooking
You. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heating cooker according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a hot plate used in the cooking device of this embodiment. As shown in the figure, a heat plate 1 is composed of heat-resistant alloy plates 1a, 1b, 1c of stainless steel or the like and copper plates 2a, 2b of high thermal conductivity alternately laminated, and has heat-resistant alloy plates on both upper and lower surfaces. 1a and 1c are arranged.
Further, the lower surface of the heat plate resistive heating element 3 is well disposed thermally conductive. All the end faces of the hot plate 1 are made of Ni
It is sealed with a heat-resistant and oxidizing sealing material such as a brazing material. In the above hot plate, the heat resistant alloy plates 1a, 1b,
An SUS304 plate having a thickness of 0.5 mm was used as 1c, and an oxygen-free copper plate having a thickness of 1.0 mm was used as the copper plates 2a and 2b having high thermal conductivity. The heat-resistant alloy plates 1a, 1b, 1c and the copper plates 2a, 2b having high thermal conductivity are bonded and laminated by a processing method such as explosion bonding, and cut into a disk having a diameter of 150 mm.
Was prepared. A spiral sheathed heater (100 w, 1500 w) was brazed to the lower surface of the hot plate 1 to prepare a hot plate for a cooking device. The temperature distribution on the heating surface of the above-mentioned hot plate and the conventional hot plate of the comparative example were measured and compared. The lower surface of the SUS304 steel discs of the heat plate having the same shape as the heat plate of the conventional comparative example, the above heating plate and the same shape, a spiral sheathed heater of the same capacity produced by brazing. As a result of the comparative measurement, the temperature distribution of the hot plate of the conventional comparative example is 571 ± 43.0 ° C., whereas the temperature of the above hot plate is 612 ± 7.5 ° C., and the temperature of the entire hot plate is high. The distribution was small. The reason why the above hot plate has a better temperature distribution than the conventional hot plate of the comparative example will be described below. The heat generated by the resistance heating element 3 forms a heating surface from the lowermost heat-resistant alloy plate 1a via the second-layer copper plate 2a, the third-layer heat-resistant alloy plate 1b, and the fourth-layer copper plate 2b. It is transmitted to the fifth uppermost heat-resistant alloy plate 1c. The heat conductivity of the heat-resistant alloy plate constituting the first, third, and fifth layers is 14 to 20 kcal /
mh ° C, and the thermal conductivity of the copper plates constituting the second and fourth layers is 320 to 332 kcal / mh ° C. Thus, in the above hot plate, since the heat conduction of the copper plate is larger than the heat conduction of the heat-resistant alloy plate, the heat emitted from the resistance heating element is more likely to penetrate the hot plate at right angles to the plane than the surface. It becomes easier to spread horizontally on the surface. As a result, the temperature distribution on the uppermost heating surface is improved. Further, the end of the hot plate 1 used in the heating cooker of this embodiment is covered with a Ni brazing material and sealed. By this end surface treatment, oxidation of the copper plate constituting the hot plate can be prevented, and the durability of the hot plate can be increased. In the above description, the heating cooker having the hot plate of the five-layer structure has been described.
It is not limited to a cooking device having a hot plate ,
The same effect can be obtained by using a hot plate having a layer structure or a multilayer structure. Next, FIG. 2 shows the configuration of the end of the above-mentioned hot plate. As shown in the figure, the end of the hot plate 1 is sealed by welding the entire periphery of the end of the hot plate using a hot plate fixing ring 4 made of heat-resistant steel. With this configuration, the durability of the hot plate can be further increased. Further, by using 0.5 mm thick austenitic stainless steel for the heat-resistant alloy plates 1a, 1b, 1c constituting the hot plate 1, the durability of the hot plate can be further enhanced. That is, the coefficient of thermal expansion of austenitic stainless steel is 150 × 10 −7 / ° C. to 173 × 1.
0 -7 / ° C, the coefficient of thermal expansion of the copper plate is 150 ×
It is substantially the same at 10 -7 / ℃ ~173 × 10 -7 / ℃. A hot plate made of a material having the same coefficient of thermal expansion hardly generates thermal stress between layers even when heated, and hardly causes delamination. Further, since the austenitic stainless steel sheet is also contained in the intermediate layer having a five-layer structure, the creep characteristics are also excellent. For this reason, since the above-mentioned hot plate maintains flatness for a long period of time, there is no need to perform maintenance for maintaining flatness, and the hot plate becomes a highly durable hot plate. [0023] Note that the stainless steel sheet can be used the hot plate of the SUS201,301,302,303,
304, 305, 309, 310, 310S, 316,
321 and the like, but preferably SUS304,3
10S, 316, and 321. In particular, SUS310S is desirable to avoid high temperature creep. Hereinafter, the evaluation results regarding the high temperature creep property will be described. As an evaluation sample, SU with a thickness of 0.5 mm
A heat plate for seven-layer structure of total thickness of 5.0mm was laminated three copper plate S310S plate four and thickness 1.0 mm, a thickness of 0.5
A hot plate of a comparative example in which two SUS310S plates having a thickness of 2 mm and a copper plate having a thickness of 4.0 mm were laminated was used. 100 on the hot plate
v, 2500w spiral sheathed heater was brazed.
This hot plate is turned on for 30 minutes and cycled for 10 minutes off for 100 minutes.
The measurement was repeated 0 times, and the flatness was measured. As a result, flatness of the heat plate, 0.2 mm, the flatness of the thermal plate of Comparative Example 1.
In 0 mm, above the hot plate can hold the flatness over a long period of time. FIG. 3 shows the structure of the main part of the cooking device of the present embodiment. Hot plate 1 to be used in this embodiment is a basic configuration above
Similar to the hot plate 1 that describes the heat plate 1 consists of a stack of copper plates of heat resistant alloy plate and the thermal conductivity, but on its lower surface is provided with a resistive heating element 3, the point, characterized in , in order to finely adjust the temperature of the hot plate, in that the cooling pipe 5 to cool by flowing fluid are brazed. The heating plate of the heating cooker according to the present embodiment configured as described above is heated by the resistance heating element 3 at the time of cooking, and water or air is supplied to the cooling pipe 5 at the time of cooking or when the cooking is completed. To cool the hotplate at the desired rate. With this configuration, fine cooking can be realized. As is apparent from the above description of the embodiment, according to the present invention, a heat-resistant alloy plate and a heat-conductive copper plate are alternately laminated, and the upper and lower surfaces are heat-resistant alloy plates. With cooling means
By fine-tuning the temperature of the hot plate of the cooking device
In both cases, heating and cooling can be performed arbitrarily.
A science instrument can be realized.

【図面の簡単な説明】 【図1】本発明の実施例の加熱調理器に使用する熱板の
構成を示す断面図 【図2】加熱調理器の熱板の端面構成を示す断面図 【図3】本実施例の加熱調理器の熱板の概略構成を示す
断面図 【図4】従来の加熱調理器の熱板の概略構成を示す断面
図 【符号の説明】 1 熱板 1a,1b,1c 耐熱合金板 2a,2b 銅板 3 抵抗加熱素子 4 熱板固定リング 5 冷却パイプ
Sectional view showing an end face structure of a hot plate of a cross-sectional view Figure 2 the heating cooker showing the configuration of a heat plate used in the cooker of the embodiment of BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] This invention FIG. 3 is a cross-sectional view showing a schematic configuration of a hot plate of the heating cooker according to the present embodiment . FIG. 4 is a cross-sectional view showing a schematic configuration of a hot plate of a conventional heating cooker. , 1c Heat-resistant alloy plate 2a, 2b Copper plate 3 Resistance heating element 4 Heat plate fixing ring 5 Cooling pipe

Claims (1)

(57)【特許請求の範囲】 【請求項1】 耐熱合金板と高熱伝導板を交互に積層
し、上下両表面を耐熱合金板で構成した熱板と、前記熱
板を加熱する加熱手段とを備えていて、前記熱板に冷却
媒体が流れる冷却パイプを接して設けた加熱調理器。
(57) [Claims 1] A heat plate in which a heat-resistant alloy plate and a high-thermal-conductivity plate are alternately laminated, and both upper and lower surfaces are formed of heat-resistant alloy plates, and heating means for heating the hot plate. And cooling the hot plate
A heating cooker provided in contact with a cooling pipe through which a medium flows .
JP21821693A 1993-09-02 1993-09-02 Cooking device Expired - Fee Related JP3424046B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21821693A JP3424046B2 (en) 1993-09-02 1993-09-02 Cooking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21821693A JP3424046B2 (en) 1993-09-02 1993-09-02 Cooking device

Publications (2)

Publication Number Publication Date
JPH0767785A JPH0767785A (en) 1995-03-14
JP3424046B2 true JP3424046B2 (en) 2003-07-07

Family

ID=16716439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21821693A Expired - Fee Related JP3424046B2 (en) 1993-09-02 1993-09-02 Cooking device

Country Status (1)

Country Link
JP (1) JP3424046B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370514A (en) * 2019-06-28 2019-10-25 宁波大学 A kind of hot plate of vulcanizer based on electromagnetic heating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100837157B1 (en) * 2006-12-07 2008-06-11 하태용 From for construction
JP6163672B2 (en) * 2013-02-18 2017-07-19 タニコー株式会社 Cooking equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110370514A (en) * 2019-06-28 2019-10-25 宁波大学 A kind of hot plate of vulcanizer based on electromagnetic heating

Also Published As

Publication number Publication date
JPH0767785A (en) 1995-03-14

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