JPH0271022A - Oven - Google Patents

Oven

Info

Publication number
JPH0271022A
JPH0271022A JP22321888A JP22321888A JPH0271022A JP H0271022 A JPH0271022 A JP H0271022A JP 22321888 A JP22321888 A JP 22321888A JP 22321888 A JP22321888 A JP 22321888A JP H0271022 A JPH0271022 A JP H0271022A
Authority
JP
Japan
Prior art keywords
heating chamber
heater
face
plate
mounting plate
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
Application number
JP22321888A
Other languages
Japanese (ja)
Inventor
Chikao Nakano
仲野 親男
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP22321888A priority Critical patent/JPH0271022A/en
Publication of JPH0271022A publication Critical patent/JPH0271022A/en
Pending legal-status Critical Current

Links

Landscapes

  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

PURPOSE:To eliminate a danger in which a screw is projected in the inside of a heating chamber and contrive the improvement of an endurance property by covering a face-like heater on the upper face of the heating chamber of the inside of an oven body by an attaching plate from above, and spot-welding the attaching plate and the upper face of the heating chamber to closely fix the face-like heater on the upper face of the heating chamber. CONSTITUTION:A face-like heater 14, an oven body 11, an attaching plate 15 can almost completely be integrated by spot-welding a plate body 13 of the upper end of a heating chamber 12 and the attaching plate 15 at important points, not to nearly produce gaps between the face-like heater 14 and the plate body 13 even if the temperature of the face-like heater increases. Accordingly, uniform heat distribution and high efficiency can be obtained in the inside of the heating chamber 12.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は食品の加熱などに使用されるオープンに関する
ものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an open device used for heating food and the like.

従来の技術 従来のオープンにおいて、熱源として面状ヒーターを備
えたものとして例えば第3図に示すように構成されたも
のが知られている。図中、1は内部に加熱室2が形成さ
れてなるオープン本体で、このオープン本体1の加熱室
2の上端tr1/Lう板体3上には面状ヒーター4が載
せられ、この面状ヒーター4は取付板5によって上から
覆われている。
2. Description of the Related Art A conventional open circuit equipped with a planar heater as a heat source is known, for example, as shown in FIG. 3. In the figure, reference numeral 1 denotes an open body in which a heating chamber 2 is formed, and a planar heater 4 is placed on the upper end tr1/L of the heating chamber 2 of the open main body 1. The heater 4 is covered from above by a mounting plate 5.

6は取付板5の外周フランジ5a kオープン本体1の
上端外周の7ランジ1aに固定するビスである。
Reference numeral 6 designates screws that are fixed to the outer peripheral flange 5a of the mounting plate 5 and the 7 flange 1a on the outer periphery of the upper end of the open body 1.

発明が解決しようとする課題 ところがこのような従来の構成においては、ビス6の先
端が加熱室2の内部に突出すると危険であるため、ビス
6t−使用できる個所はオープン本体1の上端外周のフ
ランジ1aの部分に限定され。
Problem to be Solved by the Invention However, in such a conventional configuration, it is dangerous if the tip of the screw 6 protrudes into the inside of the heating chamber 2. Limited to part 1a.

他の任意の位置でビス止めすることはできなかつ友。ま
た、面状ヒーター4により加熱室2の加熱を行なうため
に面状ヒーター4を加熱室2の外側に取り付ける場合、
1X1熱室2の内部の熱分布や熱効率に対して面状ヒー
ター4と板体3との接触状態は非常に大きな影響を与え
、面状ヒーター4と板体3との間は密着状態でなければ
安定した熱分布や良好な熱効率が得られないものである
。すなわち、面状ヒーター4は冷めたときに加熱室2の
上端の板体3上に密着していても、温度が上昇するにつ
れて固定の不充分な部分で板体3との間に隙間があき、
隙間があき始めるとその部分の面状ヒーター4と板体3
との温度差が大きくなる之め、Pり膨張の差によって益
々隙間が大きくなり、板体3の温度が不安定かつ不均一
になって、加熱室2内の熱分布も不安定で良好な状態に
することは困難であった。また、面状ヒーター4から前
記板体3への燕伝導も前記隙間の発生により極端に悪く
なり、熱効率が大幅に低下してい友。このような観点か
ら上記のようなビス止めによる取り付けでは面状ヒータ
ー4と板体3との密着状態が不充分で、P!p!分布、
熱効率の向上に限界があつt0本発明はこのような問題
全解決するもので、熱分布の安定、熱効率の向上を図っ
たオープンを提供すること全目的とするものである。
It cannot be screwed in any other position. Furthermore, when installing the sheet heater 4 on the outside of the heating chamber 2 in order to heat the heating chamber 2 with the sheet heater 4,
The state of contact between the sheet heater 4 and the plate 3 has a very large effect on the heat distribution and thermal efficiency inside the 1X1 heat chamber 2, and the sheet heater 4 and the plate 3 must be in close contact. Otherwise, stable heat distribution and good thermal efficiency cannot be obtained. That is, even if the sheet heater 4 is in close contact with the plate 3 at the upper end of the heating chamber 2 when it cools down, as the temperature rises, a gap is created between the sheet heater 4 and the plate 3 at the insufficiently fixed part. ,
When a gap starts to appear, the sheet heater 4 and the plate 3 in that area
As the temperature difference between the heating chamber 2 and It was difficult to get into the state. In addition, the transmission from the sheet heater 4 to the plate 3 becomes extremely poor due to the gap, resulting in a significant decrease in thermal efficiency. From this point of view, the above-mentioned installation using screws does not provide sufficient adhesion between the sheet heater 4 and the plate 3, resulting in P! p! distribution,
There is a limit to the improvement of thermal efficiency t0 The present invention is intended to solve all of these problems, and its entire purpose is to provide an opening with stable heat distribution and improved thermal efficiency.

課+3を解決するための手段 この問題を解決するために本発明は、オープン本体の内
部の加熱室の上面に面状ヒーターを当接させるとともに
この面状ヒーターを上から取付板で則い、この取付板と
加熱室の上面とをスポット溶接して面状ヒーターを加熱
室上面に密着固定したものである。
Means for Solving Section +3 In order to solve this problem, the present invention brings a planar heater into contact with the upper surface of the heating chamber inside the open main body, and also attaches a mounting plate to the planar heater from above. This mounting plate and the upper surface of the heating chamber are spot welded to tightly fix the planar heater to the upper surface of the heating chamber.

作用 この構成により、面状ヒーターヲ醍う取付板の固定をビ
ス止めではなくスポット溶接にLり行なっているため、
ビスが加熱室の内部に突出しtりすることによる危険性
の問題を解決でき、さらにはスポット溶接にて取付板を
任意の位tiffiで固定できることから面状ヒーター
?安定良く支持できることになり、均一な熱分布と高い
熱効率が得られることになる。その結果、加熱室内での
所要温度への到達時間が短かくなる。また、熱効率の向
上により面状ヒーターの温度を必要以上に高くする必要
がなく、シかも面状ヒーター全体の温度も均一になるt
め、耐久性能の向上を図ることができる。さらに前述の
ようにスポット溶接にて取付板の固定を行なうようにす
ることにエリ、ビス止めに比べて自動化が図り易く、コ
ストダウンを図ることができる。
Function: With this configuration, the mounting plate that holds the sheet heater is fixed by spot welding instead of screws.
It solves the problem of danger caused by screws protruding into the heating chamber, and furthermore, the mounting plate can be fixed at any position by spot welding, making it possible to use a planar heater. This means that it can be supported stably, resulting in uniform heat distribution and high thermal efficiency. As a result, the time required to reach the required temperature within the heating chamber becomes shorter. In addition, due to improved thermal efficiency, there is no need to make the temperature of the sheet heater higher than necessary, and the temperature of the entire sheet heater becomes uniform.
Therefore, durability performance can be improved. Furthermore, as mentioned above, fixing the mounting plate by spot welding is easier to automate than fixing with screws and can reduce costs.

実施例 以下、本発明の一実施例について、図面に基づいて説明
する。
EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

第1図および第2図において、11は内部に加熱室12
が形成されてなるオープン本体で、このオープン本体1
1の加熱室12の上端を覆う板体13上には面状ヒータ
ー14が載せられている。この面状ヒーター14は上方
よりステンレス鋼やアルミメツキ鋼板などの耐熱性の板
金材料からなる取付板15で覆われ、この取付板15の
周囲の7フンジ16をオープン本体11の上端周囲のフ
ランジ17上に間に前記板体13の外周部を介在させて
重ね定状態で取付板15のフランジ16の上から周方向
適所をスポット溶接することにより、取付板15および
板体13はオープン本体11の上端の7ランジ17に一
体的に取り付けられている。第1図におけるX部18は
スポット溶接部である。なお、図面に示す実施例では面
状ヒーター14の中央に孔部14aを形成し、その部分
に取付板15の中央突部15a を嵌入させて突部15
aと板体13t−もスポット溶接している。ところで、
前記面状ヒーター14は第2図に示すように上下方向に
3Nのマイカ板19.20 、21 ffi有し、中央
のマイカ板20に鉄−クロム線22が装着され、この中
央のマイ力板20t−上下のマイカ板19.21で挾ん
で絶縁している。
In FIGS. 1 and 2, 11 has a heating chamber 12 inside.
This open body 1 is formed by
A planar heater 14 is mounted on a plate 13 covering the upper end of the heating chamber 12. This planar heater 14 is covered from above with a mounting plate 15 made of a heat-resistant sheet metal material such as stainless steel or aluminized steel plate, and seven flange 16 around the mounting plate 15 are opened. The mounting plate 15 and the plate body 13 are attached to the upper end of the open main body 11 by spot welding the mounting plate 15 at a suitable position in the circumferential direction from above the flange 16 of the mounting plate 15 in an overlapping state with the outer peripheral part of the plate body 13 interposed therebetween. It is integrally attached to the 7 langes 17. The X portion 18 in FIG. 1 is a spot weld. In the embodiment shown in the drawings, a hole 14a is formed in the center of the planar heater 14, and the central protrusion 15a of the mounting plate 15 is fitted into the hole 14a.
a and the plate body 13t- are also spot welded. by the way,
As shown in FIG. 2, the planar heater 14 has 3N mica plates 19.20 and 21 ffi in the vertical direction, and an iron-chromium wire 22 is attached to the central mica plate 20. 20t - It is insulated by sandwiching it between upper and lower mica plates 19 and 21.

上記構成によれば、加熱室12の上端の板体13と取付
板15とを要所でスポット溶接することにより、面状ヒ
ーター14とオープン本体11、取付板15とをほぼ完
全に一体化でき、面状ヒーター14の温度が上がっても
面状ヒーター14と板体13との間にはほとんど隙間は
生じない。従って、加熱室12の内部は均一な熱分布と
高い熱効率が得られる。
According to the above configuration, by spot welding the plate 13 at the upper end of the heating chamber 12 and the mounting plate 15 at key points, the planar heater 14, the open main body 11, and the mounting plate 15 can be almost completely integrated. Even if the temperature of the sheet heater 14 rises, almost no gap is created between the sheet heater 14 and the plate 13. Therefore, uniform heat distribution and high thermal efficiency can be obtained inside the heating chamber 12.

なお、取付板15ヲスポツト溶接する部分は同紙のよう
に面状ヒーター14に孔部14aなどを設けることによ
って適宜選択できる。
The portion of the mounting plate 15 to be spot welded can be appropriately selected by providing holes 14a in the planar heater 14 as shown in the same paper.

発明の効果 以上のように本発明によれば、面状ヒーターを覆う取付
板の固定をビス止めではなくスポット溶接により行なっ
ている九め、ビスが加熱室の内部に突出したりすること
による危険性の問題を解決でき、さらにはスポット溶接
にて取付板を任意の位置で固定できることから面状ヒー
ター全安定良く支持できることになり、均一な熱分布と
高い熱効率が得られることになる。その結果、加熱室内
での所要温度への到達時間が短かくなる。また、熱効率
の向上により面状ヒーターの温度を必要以上に高くする
必要がなく、しかも面状ヒーター全体の温度も均一にな
る九め、耐久性能の向上を図ることができる。さらにm
1述のようにスポット溶接にて取付板の固定を行なうよ
うにすることにより、ビス止めに比べ等自動化が図り易
く、コストダウンを図ることができる。
Effects of the Invention As described above, according to the present invention, the mounting plate covering the planar heater is fixed by spot welding rather than screwing. This problem can be solved, and since the mounting plate can be fixed at any position by spot welding, the planar heater can be fully supported stably, resulting in uniform heat distribution and high thermal efficiency. As a result, the time required to reach the required temperature within the heating chamber becomes shorter. Further, due to the improvement in thermal efficiency, it is not necessary to make the temperature of the planar heater higher than necessary, and the temperature of the entire planar heater becomes uniform.9th, durability performance can be improved. Further m
By fixing the mounting plate by spot welding as described in 1 above, it is easier to automate and reduce costs compared to screw fixing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図および第2図は本発明の一実施例を示すもので、
第1図はオーブンの縦断面図、第2図は要部分解斜視図
、第3因は従来例におけるオープンの縦断面図である。 11・・・オープン本体、12・・・加熱室、13・・
・板体、14・・・面状ヒーター、15・・・取付板、
16.17・・・フランジ。 18・・・スポット溶接部。
1 and 2 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of the oven, FIG. 2 is an exploded perspective view of the main part, and the third factor is a longitudinal sectional view of an open oven in a conventional example. 11...Open main body, 12...Heating chamber, 13...
・Plate body, 14... Planar heater, 15... Mounting plate,
16.17...Flange. 18...Spot welding part.

Claims (1)

【特許請求の範囲】[Claims] 1、オープン本体の内部の加熱室の上面に面状ヒーター
を当接させるとともにこの面状ヒーターを上から取付板
で覆い、この取付板と加熱室の上面とをスポット溶接し
て面状ヒーターを加熱室上面に密着固定したオープン。
1. Place the planar heater in contact with the top surface of the heating chamber inside the open main body, cover this planar heater with a mounting plate from above, and spot weld the mounting plate and the top surface of the heating chamber to attach the planar heater. An open door that is tightly fixed to the top of the heating chamber.
JP22321888A 1988-09-06 1988-09-06 Oven Pending JPH0271022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22321888A JPH0271022A (en) 1988-09-06 1988-09-06 Oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22321888A JPH0271022A (en) 1988-09-06 1988-09-06 Oven

Publications (1)

Publication Number Publication Date
JPH0271022A true JPH0271022A (en) 1990-03-09

Family

ID=16794642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22321888A Pending JPH0271022A (en) 1988-09-06 1988-09-06 Oven

Country Status (1)

Country Link
JP (1) JPH0271022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243168A (en) * 2001-02-13 2002-08-28 Matsushita Electric Ind Co Ltd High-frequency heat cooking device
JP2020051633A (en) * 2018-09-21 2020-04-02 日立グローバルライフソリューションズ株式会社 Heating cooker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002243168A (en) * 2001-02-13 2002-08-28 Matsushita Electric Ind Co Ltd High-frequency heat cooking device
JP2020051633A (en) * 2018-09-21 2020-04-02 日立グローバルライフソリューションズ株式会社 Heating cooker

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