JPH07113529A - Plane heater for heating cooker - Google Patents
Plane heater for heating cookerInfo
- Publication number
- JPH07113529A JPH07113529A JP5259638A JP25963893A JPH07113529A JP H07113529 A JPH07113529 A JP H07113529A JP 5259638 A JP5259638 A JP 5259638A JP 25963893 A JP25963893 A JP 25963893A JP H07113529 A JPH07113529 A JP H07113529A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- heat source
- heat shield
- heat
- shield 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 239000002184 metal Substances 0.000 claims abstract description 17
- 239000010445 mica Substances 0.000 claims description 13
- 229910052618 mica group Inorganic materials 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 3
- 238000010411 cooking Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract 2
- 239000003365 glass fiber Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000010850 non-combustible waste Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
-
- 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
- H05B6/64—Heating using microwaves
- H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
- H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated
-
- 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
- H05B6/64—Heating using microwaves
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明はオーブングリルレンジな
どの加熱調理器の熱源として使用される平面ヒータに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat heater used as a heat source for a heating cooker such as an oven grill range.
【0002】[0002]
【従来の技術】例えばオーブングリルレンジでは、食品
を下側から加熱する下側ヒータとして、加熱室を構成す
る内箱の底面を熱放射面に利用する構成の外付け式の平
面ヒータが用いられている。2. Description of the Related Art For example, in an oven grill range, an external flat heater having a structure in which a bottom surface of an inner box forming a heating chamber is used as a heat radiation surface is used as a lower heater for heating food from the lower side. ing.
【0003】この平面ヒータは、ニクロム線を巻回した
芯マイカ板を、他部材からの絶縁のために2枚の絶縁マ
イカ板により挟んだ構造の板状熱源を主体とするもの
で、この板状熱源は加熱室を構成する内箱の外底面に押
し付けられて該底面を加熱し、加熱された内箱の底面は
輻射によって食品を加熱する、という構成である。This flat heater is mainly composed of a plate-shaped heat source having a structure in which a core mica plate wound with a nichrome wire is sandwiched between two insulating mica plates for insulation from other members. The heat source is pressed against the outer bottom surface of the inner box forming the heating chamber to heat the bottom surface, and the bottom surface of the heated inner box heats the food by radiation.
【0004】かかる平面ヒータとしては、従来、図12
および図13に示す構造のものと、図14および図15
に示す構造のものとがある。図12および図13に示す
平面ヒータ1は、板状熱源2をガラス繊維からなる断熱
体3を介して矩形容器状のケーシング4に取り付け、ケ
ーシング4を内箱に固定することにより、板状熱源2を
内箱の底面に押し付ける構造のものである。また、図1
4および図15に示す平面ヒータ5は板状熱源2を金属
製の遮熱板6を介してケーシング4に取り付け、ケーシ
ング4を内箱の底面に固定することにより、板状熱源2
を内箱の底面に押し付ける構造のものである。なお、断
熱体3、遮熱板6は板状熱源2からケーシング4への熱
伝導を断つと共に、板状熱源2を内箱の底面に押し付け
る機能を有する。Conventionally, such a flat heater is shown in FIG.
And the structure shown in FIG. 13 and FIGS.
There is one with the structure shown in. The planar heater 1 shown in FIG. 12 and FIG. 13 is a plate-shaped heat source by attaching a plate-shaped heat source 2 to a rectangular container-shaped casing 4 via a heat insulator 3 made of glass fiber and fixing the casing 4 to an inner box. 2 is pressed against the bottom surface of the inner box. Also, FIG.
4 and the plane heater 5 shown in FIG. 15 attaches the plate-shaped heat source 2 to the casing 4 via the heat shield plate 6 made of metal, and fixes the casing 4 to the bottom surface of the inner box.
It is a structure that presses against the bottom of the inner box. The heat insulator 3 and the heat shield plate 6 have a function of blocking heat conduction from the plate-shaped heat source 2 to the casing 4 and pressing the plate-shaped heat source 2 against the bottom surface of the inner box.
【0005】[0005]
【発明が解決しようとする課題】図12および図13に
示す平面ヒータ1では、断熱体3はガラス繊維製である
ため、断熱性に優れる。しかし、断熱体3はガラス繊維
を集積して製造されるため、その厚さ寸法のばらつきが
大きく、板状熱源2を内箱の底面に押し付けたとき、押
付力にばらつきを生じ、板状熱源2から内箱の底面への
伝熱量がばらつく。しかも、平面ヒータ1を分解して廃
棄する場合、ガラス繊維製の断熱体3は再資源化が困難
で、且つ不燃性で焼却もできず、最終的には不燃ごみと
なる。In the flat heater 1 shown in FIGS. 12 and 13, the heat insulating body 3 is made of glass fiber, so that the heat insulating property is excellent. However, since the heat insulating body 3 is manufactured by integrating glass fibers, the thickness of the heat insulating body 3 varies widely, and when the plate-shaped heat source 2 is pressed against the bottom surface of the inner box, the pressing force varies, and the plate-shaped heat source The amount of heat transfer from 2 to the bottom of the inner box varies. In addition, when the flat heater 1 is disassembled and discarded, the glass fiber heat insulator 3 is difficult to recycle, is incombustible and cannot be incinerated, and eventually becomes incombustible waste.
【0006】一方、図14および図15に示す平面ヒー
タ5では、金属製の遮熱板6はガラス繊維製の断熱体3
のような寸法ばらつきはないため、内箱の底面への板状
熱源2の押付力のばらつきはなく、従って板状熱源2か
ら内箱の底面への伝熱量のばらつきは少なく、しかも再
資源化は容易である。しかしながら、金属製の遮熱板6
はガラス繊維製の断熱体3に比べて熱伝導率が100倍
以上高いため、板状熱源2に対して大きな面積で接触す
る遮熱板6では、板状熱源2から遮熱板6への伝熱量が
多くなり、断熱性に劣る。On the other hand, in the flat heater 5 shown in FIGS. 14 and 15, the metal heat shield plate 6 is made of the glass fiber heat insulator 3.
Since there is no such dimensional variation, there is no variation in the pressing force of the plate heat source 2 on the bottom surface of the inner box, and therefore there is little variation in the amount of heat transfer from the plate heat source 2 to the bottom surface of the inner box, and recycling Is easy. However, the metal heat shield 6
Has a thermal conductivity of 100 times or more higher than that of the glass fiber heat insulator 3, so that the heat shield plate 6 contacting the plate heat source 2 in a large area is connected to the plate heat source 2 from the heat shield plate 6. The amount of heat transfer increases and the heat insulation is poor.
【0007】以上のように、ガラス繊維製の断熱体3は
断熱性に優れるが、最終的に不燃ごみとなって環境に悪
影響を及ぼすため、ガラス繊維製の断熱体3を用いるこ
とは避け、金属製の遮熱板6を用いる構成とすることが
好ましい。しかしながら、従来の金属製遮熱板6では断
熱性に劣る。そこで、金属板製の遮熱板を用いながら断
熱性に優れた平面ヒータの開発が切に要望されている。As described above, the heat insulating body 3 made of glass fiber is excellent in heat insulating property, but finally it becomes non-combustible waste and adversely affects the environment. Therefore, avoid using the heat insulating body 3 made of glass fiber. It is preferable to use a heat shield plate 6 made of metal. However, the conventional metal heat shield plate 6 is inferior in heat insulation. Therefore, there is a strong demand for the development of a planar heater having excellent heat insulating properties while using a heat shield plate made of a metal plate.
【0008】本発明は上記の事情に鑑みてなされたもの
で、その目的は、金属製の遮熱板を用いながら、断熱性
に優れた加熱調理器の平面ヒータを提供するにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a flat heater for a heating cooker excellent in heat insulation while using a metal heat shield plate.
【0009】[0009]
【課題を解決するための手段】本発明の加熱調理器の平
面ヒータは、偏平箱形に形成された金属製のケーシング
と、このケーシングに設けられ、ケーシングを加熱調理
器の加熱面に取り付けることにより、その加熱面に押し
当てられる板状熱源と、この板状熱源と前記ケーシング
の底面との間に設けられた金属製の遮熱板と、この遮熱
板に前記板状熱源を支えるべく突設された支え突部とを
具備してなるものである。A flat heater for a heating cooker according to the present invention is provided with a metal casing formed in a flat box shape, and the casing is provided on the casing, and the casing is attached to a heating surface of the heating cooker. A plate-shaped heat source pressed against the heating surface, a metal heat shield plate provided between the plate-shaped heat source and the bottom surface of the casing, and the plate-shaped heat source supported by the heat shield plate. And a supporting protrusion that is provided in a protruding manner.
【0010】この場合、支え突部を遮熱板に傾斜状に切
り起こし形成された切起片から構成し、該切起片が板状
熱源の加熱面への当接により伏する方向に弾性変形して
その起立方向への復元弾発力により板状熱源を加熱面に
押圧するようにすることができる。また、その支え突部
を構成する切起片は遮熱板の強度を高めるために、遮熱
板の幅方向略全体に連続して切り起こし形成することが
好ましい。In this case, the supporting protrusion is formed by a cut and raised piece formed by cutting and raising the heat shield plate in an inclined shape, and the cut and raised piece is elastic in a direction in which the cut and raised piece is bent by contact with the heating surface of the plate heat source. It is possible to deform and press the plate-shaped heat source against the heating surface by the restoring elastic force in the standing direction. Further, in order to increase the strength of the heat shield plate, it is preferable that the cut-and-raised piece forming the supporting protrusion is continuously cut and raised in substantially the entire width direction of the heat shield plate.
【0011】板状熱源から遮熱板への輻射による伝熱量
を極力少なくするために、遮熱板にメッキを施すことが
できる。また、限られたスペースで、輻射による板状熱
源から遮熱板への伝播熱量をできるだけ少なくするめ
に、板状熱源と遮熱板との間隔寸法よりも、遮熱板とケ
ーシングの底面との間隔寸法の方を大きく設定すること
もできる。In order to minimize the amount of heat transfer by radiation from the plate heat source to the heat shield plate, the heat shield plate can be plated. In addition, in order to minimize the amount of heat transmitted from the plate heat source to the heat shield plate by radiation in a limited space, the distance between the heat shield plate and the bottom surface of the casing should be smaller than the distance between the plate heat source and the heat shield plate. The interval dimension can be set larger.
【0012】[0012]
【作用】板状熱源に対する遮熱板の接触面積は小さいの
で、遮熱板が熱伝導率の高い金属で形成されていても、
板状熱源から遮熱板への伝熱量は少なく、断熱性が向上
する。Since the contact area of the heat shield plate with the plate-shaped heat source is small, even if the heat shield plate is made of a metal having high thermal conductivity,
The amount of heat transferred from the plate heat source to the heat shield plate is small, and the heat insulation is improved.
【0013】[0013]
【実施例】以下、本発明をオーブングリルレンジに適用
した第1の実施例につき、図1ないし図6を参照しなが
ら説明する。オーブングリルレンジの全体構成は図6に
示されている。同図において、11は外箱、12は内箱
であり、この内箱12の内部は加熱室13とされてい
る。そして、内箱12の外側部には加熱室13内に導波
管14を介してマイクロ波を供給するマグネトロン15
が配設されている。また、内箱12の上部内側にはラン
プヒータ16が配設されていると共に、外底面には本発
明に係る平面ヒータ17が配設されている。この平面ヒ
ータ17は内箱12の底面を加熱面12aとして利用す
る構成のするもので、加熱面12aを熱することにより
該加熱面12aからの輻射熱によって食品を加熱する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to an oven grill range will be described below with reference to FIGS. The overall structure of the oven grill range is shown in FIG. In the figure, 11 is an outer box, 12 is an inner box, and the inside of this inner box 12 is a heating chamber 13. A magnetron 15 for supplying microwaves into the heating chamber 13 via the waveguide 14 is provided on the outer side of the inner box 12.
Is provided. Further, a lamp heater 16 is arranged inside the upper part of the inner box 12, and a flat heater 17 according to the present invention is arranged on the outer bottom surface. The flat heater 17 is configured to use the bottom surface of the inner box 12 as a heating surface 12a, and heats the heating surface 12a to heat food by radiant heat from the heating surface 12a.
【0014】上記平面ヒータ17の底部には、取付枠1
8を介してモータ19が取り付けられている。このモー
タ19の回転軸19aは平面ヒータ17を挿通して内箱
12内(加熱室13)に突出しており、その回転軸19
aの上端部にはターンテーブル20が取り付けられてい
る。そして、加熱する食品はターンテーブル20上に載
せられて該ターンテーブル20によって回転されるよう
になっており、これにより食品の加熱むらが防止され
る。At the bottom of the flat heater 17, the mounting frame 1 is attached.
A motor 19 is attached via 8. The rotary shaft 19a of the motor 19 is inserted into the flat heater 17 and projects into the inner box 12 (heating chamber 13).
A turntable 20 is attached to the upper end of a. Then, the food to be heated is placed on the turntable 20 and rotated by the turntable 20, whereby uneven heating of the food is prevented.
【0015】前記平面ヒータ17は図2および図5に示
すように、偏平な矩形容器状に形成されたケーシング2
1、このケーシング21内に配設された遮熱板22およ
びケーシング21の開放上面部に位置するように遮熱板
22に支えられた板状熱源23とから構成されている。
上記板状熱源23は具体的には図4に示すように、ニク
ロム線などの発熱線24を巻回した芯マイカ板25を2
枚並べ、それら芯マイカ板25を他部材との絶縁を図る
ための2枚の絶縁マイカ板26により挟んで構成されて
いる。また、ケーシング21および遮熱板22は板厚の
薄い金属板により形成したもので、その表面には光反射
のためのメッキが施されている。このメッキにより板状
熱源23からの輻射熱(赤外線)を反射してケーシング
21および遮熱板22が該板状熱源23からの輻射熱に
より加熱されることを極力防止するようにしている。As shown in FIGS. 2 and 5, the flat heater 17 is a casing 2 formed in the shape of a flat rectangular container.
1. A heat shield plate 22 disposed in the casing 21 and a plate-shaped heat source 23 supported by the heat shield plate 22 so as to be located on the open upper surface portion of the casing 21.
As shown in FIG. 4, the plate-shaped heat source 23 includes a core mica plate 25 around which a heating wire 24 such as a nichrome wire is wound.
The core mica plates 25 are arranged side by side and sandwiched by two insulating mica plates 26 for insulating from other members. The casing 21 and the heat shield plate 22 are formed of a thin metal plate, and the surfaces thereof are plated for light reflection. Radiation heat (infrared rays) from the plate-shaped heat source 23 is reflected by this plating to prevent the casing 21 and the heat shield plate 22 from being heated by the radiant heat from the plate-shaped heat source 23 as much as possible.
【0016】このようなケーシング21、遮熱板22お
よび板状熱源23は4隅部において鳩目27によって相
互に結合されている。この場合、図1に示すように、鳩
目27を通すためにケーシング21、遮熱板22、板状
熱源23に形成された透孔21a,22a,23aの内
径寸法は鳩目27の外径寸法よりも径大に形成されてい
る。これによりケーシング21に対して遮熱板22およ
び板状熱源23が互いに横方向に自由に動き得るように
なり、板状熱源23の発熱時におけるケーシング21、
遮熱板22および板状熱源23の熱膨張量の差を吸収で
きるようになっている。The casing 21, the heat shield plate 22 and the plate heat source 23 are connected to each other by eyelets 27 at the four corners. In this case, as shown in FIG. 1, the inner diameters of the through holes 21a, 22a, 23a formed in the casing 21, the heat shield plate 22, and the plate-shaped heat source 23 for passing the eyelet 27 are larger than the outer diameter dimension of the eyelet 27. Is also formed with a large diameter. As a result, the heat shield plate 22 and the plate-shaped heat source 23 can freely move laterally with respect to the casing 21, and the casing 21 when the plate-shaped heat source 23 generates heat,
The difference in the amount of thermal expansion between the heat shield plate 22 and the plate-shaped heat source 23 can be absorbed.
【0017】かかる平面ヒータ17は、内箱12の加熱
面12aの下面に固定された取付座28にケーシング2
1の底面をねじ29により締め付けることによって取り
付けられている。そして、この取付座28へのケーシン
グ21の取り付けにより、板状熱源23が内箱12の加
熱面12aに押し付けられ、発熱線24が発する熱を加
熱面12aに伝達する。The flat heater 17 is mounted on the mounting seat 28 fixed to the lower surface of the heating surface 12a of the inner box 12 and the casing 2
It is attached by tightening the bottom surface of 1 with screws 29. By mounting the casing 21 on the mounting seat 28, the plate-shaped heat source 23 is pressed against the heating surface 12a of the inner box 12, and the heat generated by the heating wire 24 is transferred to the heating surface 12a.
【0018】ここで、遮熱板22による板状熱源23の
支持構成につき説明する。すなわち、遮熱板22には、
図5に示すように、複数個の支え突部としての切起片3
0が切り起こしにより形成されていると共に、切起片3
0の切り起こしによって生じた長孔31間の桟部32に
は下方に突出する複数個の円錐状の突起33が絞り成形
によって形成されている。この場合、切起片30の突出
高さH1 は突起33の突出高さH2 よりも高く設定され
ている。Here, the support structure of the plate heat source 23 by the heat shield plate 22 will be described. That is, in the heat shield plate 22,
As shown in FIG. 5, the cut-and-raised pieces 3 serving as a plurality of supporting protrusions.
0 is formed by cut and raised, and cut and raised piece 3
A plurality of conical projections 33 projecting downward are formed by drawing on the cross section 32 between the elongated holes 31 formed by cutting and raising 0. In this case, the protruding height H1 of the cut and raised piece 30 is set higher than the protruding height H2 of the protrusion 33.
【0019】上記各切起片30は遮熱板22の幅方向略
全体にわたって連続するように切り起こされ、その切り
起こし状態では図1に示すように傾斜した状態になって
いる。そして、切起片30の上端部は斜め下向きに傾く
ように折り曲げられ、その折曲片30aの形成のため曲
げられた屈曲部30bが切起片30の頂上部となってい
る。The cut-and-raised pieces 30 are cut and raised so as to be continuous over substantially the entire width of the heat shield plate 22, and in the cut-and-raised state, they are inclined as shown in FIG. The upper end of the cut-and-raised piece 30 is bent so as to be inclined obliquely downward, and the bent portion 30b bent to form the bent piece 30a is the top of the cut-and-raised piece 30.
【0020】しかして、遮熱板22は突起33をケーシ
ング21の内底面に当接させることにより該ケーシング
21の内底面に支持され、切起片30の頂上部である屈
曲部30bを板状熱源23に当接させることにより該板
状熱源23を支えている。この場合、屈曲部30bの長
手方向両端部は、図3に示すように、板状熱源23の下
側の絶縁マイカ板26に対し、発熱線24が配置されて
いる部位から外れた部位において当接するようになって
いる。The heat shield plate 22 is supported on the inner bottom surface of the casing 21 by bringing the projection 33 into contact with the inner bottom surface of the casing 21, and the bent portion 30b, which is the top of the cut and raised piece 30, is formed into a plate shape. The plate-shaped heat source 23 is supported by being brought into contact with the heat source 23. In this case, as shown in FIG. 3, both ends in the longitudinal direction of the bent portion 30b contact the insulating mica plate 26 below the plate-shaped heat source 23 at a portion deviated from the portion where the heating wire 24 is arranged. I have come into contact with them.
【0021】ここで、ケーシング21を取付座28に取
り付ける前の状態では、ケーシング21の内底面と板状
熱源23の上面との間の距離L1 は取付座28の下面と
内箱12の加熱面12aとの間の距離L2 よりも長く設
定されている。これにより、ケーシング21を取付座2
8に取り付けたときには、切起片30は図 に実線で示
す状態から伏する方向(図1に矢印Aで示す)に弾性変
形して二点鎖線で示す状態になり、その弾性変形状態か
ら元の状態に戻ろうとする復元弾発力により板状熱源2
3を内箱12の加熱面12aに押し付ける。この場合、
切起片30が単独で矢印A方向に弾性変形するものでは
なく、桟部32と共に突起33を中心として矢印A方向
に回動する如く弾性変形するものである。なお、図5に
おいて、34は発熱線24の両端に接続されたリード線
である。Here, in a state before the casing 21 is attached to the mounting seat 28, the distance L1 between the inner bottom surface of the casing 21 and the upper surface of the plate-shaped heat source 23 is determined by the lower surface of the mounting seat 28 and the heating surface of the inner box 12. It is set to be longer than the distance L2 from 12a. As a result, the casing 21 is attached to the mounting seat 2
8, the cut-and-raised piece 30 is elastically deformed from the state shown by the solid line in the figure to the direction in which it goes down (shown by the arrow A in FIG. 1) to the state shown by the chain double-dashed line. Plate-like heat source 2 due to the restoring elastic force to return to the state of
3 is pressed against the heating surface 12a of the inner box 12. in this case,
The cut-and-raised piece 30 does not elastically deform in the arrow A direction alone, but elastically deforms so as to rotate in the arrow A direction around the protrusion 33 together with the crosspiece 32. In FIG. 5, 34 is a lead wire connected to both ends of the heating wire 24.
【0022】以上のように構成した平面ヒータ17によ
れば、次のような効果を得ることができる。すなわち、
遮熱板22は切起片30により板状熱源23を支えるの
で、板状熱源23に対する遮熱板22の接触面積は極小
さなものとなる。このため、板状熱源23から遮熱板2
2へ伝導によって伝えられる熱量は少なくなり、従って
遮熱板22からケーシング21への伝熱量も少なくなる
ので、遮熱板22の遮熱性(断熱性)が向上する。According to the flat heater 17 constructed as described above, the following effects can be obtained. That is,
Since the heat shield plate 22 supports the plate-shaped heat source 23 by the cut-and-raised pieces 30, the contact area of the heat shield plate 22 with the plate-shaped heat source 23 is extremely small. Therefore, the plate-shaped heat source 23 to the heat shield plate 2
Since the amount of heat transferred to the heat conducting plate 2 by 2 is small, and therefore the amount of heat transferred from the heat shield plate 22 to the casing 21 is also small, the heat shield property (heat insulating property) of the heat shield plate 22 is improved.
【0023】この場合、遮熱板22は突起33を介して
ケーシング21の底面に支えられているので、ケーシン
グ21に対する遮熱板22の接触は点接触に近い状態に
なる。このため、ケーシング21に対する遮熱板22の
接触面積も極小さなものとなり、遮熱板22からケーシ
ング21への伝導によって伝えられる熱量も極少なくな
る。In this case, since the heat shield plate 22 is supported by the bottom surface of the casing 21 via the projection 33, the contact of the heat shield plate 22 with the casing 21 is close to a point contact. Therefore, the contact area of the heat shield plate 22 with the casing 21 is also extremely small, and the amount of heat transferred by conduction from the heat shield plate 22 to the casing 21 is also extremely small.
【0024】また、遮熱板22は板状熱源23との離間
距離L1 の方がケーシング21の底面との離間距離L2
よりも長く設定されている。このため、限られたスペー
ス内において、高温度になる板状熱源23から遮熱板2
2への輻射による熱伝播、および遮熱板22からケーシ
ング21への輻射による熱伝播の双方共に極力少なくす
ることができる。この場合、遮熱板22にはメッキが施
され、板状熱源23からの輻射熱がそのメッキにより反
射されるので、板状熱源23から遮熱板22への伝播熱
量が一層少なくなる。The distance L1 between the heat shield plate 22 and the plate-shaped heat source 23 is greater than the distance L2 from the bottom surface of the casing 21.
Is set longer than. For this reason, in the limited space, the plate-shaped heat source 23, which has a high temperature, can be removed from the heat shield plate 2.
It is possible to minimize both the heat transfer by radiation to the casing 2 and the heat transfer by radiation from the heat shield plate 22 to the casing 21. In this case, since the heat shield plate 22 is plated and the radiant heat from the plate heat source 23 is reflected by the plating, the amount of heat transferred from the plate heat source 23 to the heat shield plate 22 is further reduced.
【0025】しかも、切起片30は傾斜状に切り起こさ
れ、平面ヒータ17を加熱面12aに取り付けたとき、
切起片30が伏する方向に弾性変形してその復元弾発力
により板状熱源23を加熱面12aに押圧するようにし
たので、板状熱源23を常に適度な加圧力で加熱面12
aに押し付けた状態に保持することができる。このた
め、板状熱源23から加熱面12aへの熱伝導性が良く
なり、伝熱効率が向上する。Moreover, the cut-and-raised pieces 30 are cut and raised in an inclined shape, and when the flat heater 17 is attached to the heating surface 12a,
Since the cut-and-raised piece 30 is elastically deformed in the lying direction and the restoring elastic force presses the plate-shaped heat source 23 against the heating surface 12a, the plate-shaped heat source 23 is always heated with an appropriate pressing force.
It can be kept pressed against a. Therefore, the thermal conductivity from the plate heat source 23 to the heating surface 12a is improved, and the heat transfer efficiency is improved.
【0026】その上、その切起片30は遮熱板22の幅
方向略全体にわたり連続して切り起こし形成されている
ので、遮熱板22が強度的に強くなり、1個の切起片3
0についての突起33の個数が少なくとも、切起片30
の長手方向全体で板状熱源23を加熱面12aに押し付
けることができる。Furthermore, since the cut-and-raised pieces 30 are continuously cut and raised over the entire width of the heat-shielding plate 22, the heat-shielding plate 22 becomes stronger in strength and one cut-and-raised piece is formed. Three
The number of protrusions 33 for 0 is at least 30
The plate-shaped heat source 23 can be pressed against the heating surface 12a in the entire longitudinal direction.
【0027】一方、切起片30は屈曲部30bを板状熱
源23に当接させているので、板状熱源23に対する切
起片30の接触部は円弧面部となる。このため、単に切
り起こされただけの切起片の上端を板状熱源23に当接
させる場合とは異なり、板状熱源23の下側の絶縁マイ
カ板26を傷付けるおそれがなく、薄い絶縁マイカ板2
6(厚さ0.3〜0.5mm)が破れて切起片30が発熱
線24に接触し、漏電事故を起こすというような不具合
は生じない。On the other hand, since the bent portion 30b of the cut-and-raised piece 30 is in contact with the plate-shaped heat source 23, the contact portion of the cut-and-raised piece 30 with the plate-shaped heat source 23 is an arc surface portion. Therefore, unlike the case where the upper end of the cut and raised piece that is simply cut and raised is brought into contact with the plate-shaped heat source 23, there is no risk of damaging the insulating mica plate 26 below the plate-shaped heat source 23, and a thin insulating mica is used. Board 2
6 (thickness 0.3 to 0.5 mm) is broken, and the cut and raised piece 30 comes into contact with the heating wire 24, causing no electric leakage.
【0028】また、屈曲部30bの長手方向両端には、
切起片30の切り起こし時の切断エッジが存在する。し
かしながら、その屈曲部30bの長手方向両端部は板状
熱源23に対して発熱線24の配置部位から外れた部位
において接触しているので、仮に屈曲部30bの長手方
向両端部に存する切断エッジによって板状熱源23の下
側の絶縁マイカ板26が破れたとしても、切起片30が
発熱線24に接触するおそれはない。Further, at both ends in the longitudinal direction of the bent portion 30b,
There is a cutting edge when the cut and raised piece 30 is cut and raised. However, since both ends in the longitudinal direction of the bent portion 30b are in contact with the plate-shaped heat source 23 at the portions deviating from the positions where the heating wires 24 are arranged, the cutting edges existing at the both ends in the longitudinal direction of the bent portion 30b are assumed. Even if the insulating mica plate 26 on the lower side of the plate-shaped heat source 23 is broken, the cut-and-raised pieces 30 do not come into contact with the heating wire 24.
【0029】図7ないし図11は本発明の第2ないし第
6の各実施例を示すもので、これら各図に図1と同一部
分に同一符号を付して説明する。図7に示す第2の実施
例において、遮熱板35には切起片36および37が交
互に下向きおよび上向きにして垂直に切り起こし形成さ
れている。この遮熱板35は下向きの切起片36をケー
シング21の底面に当接させることにより該ケーシング
21の底面に支持されている。そして、上向きの切起片
37を支え突部として該切起片37により板状熱源23
を支えている。FIGS. 7 to 11 show second to sixth embodiments of the present invention. In these drawings, the same parts as those in FIG. In the second embodiment shown in FIG. 7, cut-and-raised pieces 36 and 37 are formed by cutting and raising the heat-shielding plate 35 alternately downward and upward. The heat shield plate 35 is supported on the bottom surface of the casing 21 by bringing the cut-and-raised pieces 36 facing downward into contact with the bottom surface of the casing 21. Then, the plate-shaped heat source 23 is formed by the upwardly facing cut-and-raised piece 37 as a supporting protrusion.
Is supporting.
【0030】図8に示す第3の実施例において、遮熱板
38には、その周縁部を下向きに折り曲げることにより
脚片39が形成されていると共に、支え突部としての複
数個の切起片40が上向きにして垂直に切り起こされて
いる。この遮熱板38は脚片39をケーシング21の底
面に当接させることにより該ケーシング21に支持され
ていると共に、切起片40により板状熱源23を支えて
いる。In the third embodiment shown in FIG. 8, a leg piece 39 is formed on the heat shield plate 38 by bending the peripheral edge of the heat shield plate downward, and a plurality of cut-and-raised parts serving as support projections are formed. A piece 40 is cut and raised vertically with the piece facing upward. The heat shield plate 38 is supported by the casing 21 by bringing the leg pieces 39 into contact with the bottom surface of the casing 21, and supports the plate-shaped heat source 23 by the cut and raised pieces 40.
【0031】図9に示す第4の実施例において、遮熱板
41には台形状の突部42および43が交互に下向きお
よび上向きにして絞り成形されている。この遮熱板41
は下向きに凸の突部42をケーシング21の底面に当接
させることにより該ケーシング21の底面に支持されて
いる。そして、上向き凸の突部43を支え突部として該
突部43により板状熱源23を支えている。In the fourth embodiment shown in FIG. 9, trapezoidal protrusions 42 and 43 are alternately formed on the heat shield plate 41 downward and upward. This heat shield plate 41
Is supported on the bottom surface of the casing 21 by bringing the downwardly convex projection 42 into contact with the bottom surface of the casing 21. Then, the plate-shaped heat source 23 is supported by the projecting portion 43, which uses the projecting portion 43 projecting upward as a supporting projecting portion.
【0032】図10に示す第5の実施例において、遮熱
板44には上向きに突出する支え突部としての波形部4
5が絞り成形されている。また、ケーシング21の底面
には上向きに突出する波形の突部46が絞り成形されて
いる。そして、遮熱板44は突部46に載置することに
よりケーシング21に支持され、波形部47により板状
熱源23を支えている。In the fifth embodiment shown in FIG. 10, the heat shield plate 44 has a corrugated portion 4 as a support protrusion protruding upward.
5 is drawn. A corrugated protrusion 46 protruding upward is formed on the bottom surface of the casing 21 by drawing. The heat shield plate 44 is supported by the casing 21 by being placed on the protrusion 46, and the corrugated portion 47 supports the plate heat source 23.
【0033】図11に示す第6の実施例において、遮熱
板47には波形部48および49が下向きに凸および上
向きに凸となるようにして交互に絞り成形されている。
従って、この遮熱板47は断面略波形をなしている。か
かる遮熱板47は下向きに凸の波形部48をケーシング
21の底面に当接させることにより該ケーシング21に
支持され、上向きに凸の波形部49を支え突部として該
波形部49により板状熱源23を支えている。In the sixth embodiment shown in FIG. 11, corrugated portions 48 and 49 are alternately drawn on the heat shield plate 47 so as to be convex downward and convex upward.
Therefore, the heat shield plate 47 has a substantially corrugated cross section. The heat shield plate 47 is supported by the casing 21 by bringing a downwardly convex corrugated portion 48 into contact with the bottom surface of the casing 21, and a plate shape is formed by the corrugated portion 49 with the upwardly convex corrugated portion 49 as a supporting protrusion. It supports the heat source 23.
【0034】以上の第2ないし第6の各実施例のように
構成しても、遮熱板35,38,41,44,47は板
状熱源23およびケーシング21の双方に対する接触面
積が小さいので、前記第1の実施例と同様に断熱性が向
上するという効果を得ることができる。特に、図9に示
す第4の実施例では、突部43の平面状の上端面で板状
熱源23を支えるので、下側の絶縁マイカ板26に傷が
付くことがない。この場合、図7および図8に示す第2
および第3の実施例において、切起片37,40の先端
部に水平片を折曲形成し、この水平片により板状熱源2
3を支えるようにしても良い。Even if the heat shield plates 35, 38, 41, 44 and 47 are constructed as in the second to sixth embodiments, the contact areas of both the plate heat source 23 and the casing 21 are small. As in the case of the first embodiment, the effect of improving the heat insulating property can be obtained. Particularly, in the fourth embodiment shown in FIG. 9, since the plate-shaped heat source 23 is supported by the flat upper end surface of the protrusion 43, the lower insulating mica plate 26 is not scratched. In this case, the second one shown in FIG. 7 and FIG.
In addition, in the third embodiment, the horizontal piece is bent and formed at the tips of the cut and raised pieces 37 and 40, and the plate-shaped heat source 2 is formed by this horizontal piece.
You may make it support 3.
【0035】なお、上記各実施例では、内箱12の底面
(加熱面12a)に取り付ける平面ヒータに適用して説
明したが、内箱の上面に取り付けられる平面ヒータに適
用しても良い。また、鳩目27をケーシングに固定され
る段付軸に変え、この段付軸の段部によって遮熱板を支
えるように構成しても良い。In each of the above embodiments, the description has been made by applying it to the flat heater attached to the bottom surface (heating surface 12a) of the inner box 12, but it may be applied to the flat heater attached to the upper surface of the inner box. Alternatively, the eyelet 27 may be replaced with a stepped shaft fixed to the casing, and the heat shield may be supported by the stepped part of the stepped shaft.
【0036】その他、本発明は上記し且つ図面に示す実
施例に限定されるものではなく、例えばオーブングリル
レンジの平面ヒータに限られず、加熱調理器一般の平面
ヒータに広く適用できる等、その要旨を逸脱しない範囲
で種々変更して実施することができるものである。In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and is not limited to, for example, a flat heater of an oven grill range, but can be widely applied to a flat heater of a heating cooker in general. The present invention can be variously modified and implemented without departing from the above.
【0037】[0037]
【発明の効果】以上説明したように本発明の加熱調理器
の平面ヒータによれば、断熱のための部材として金属製
の遮熱板を採用したので、ガラス繊維製の断熱体を用い
る場合とは異なり、再資源化が可能で環境に悪影響を及
ぼすおそれがなく、しかも金属製の遮熱板に支え突部を
突設し、この支え突部により板状熱源を支えるようにし
たので、板状熱源に対する遮熱板の接触面積が小さくな
って板状熱源から遮熱板への伝熱量が少なくなる結果、
板状熱源から遮熱板を介してケーシングに伝わって外部
に逃げ出る熱量が少なく、金属製の遮熱板を用いたにも
かかわらず優れた断熱性を得ることができる。As described above, according to the flat heater of the heating cooker of the present invention, the metal heat shield plate is used as a member for heat insulation, so that the heat insulator made of glass fiber is used. In contrast, it is possible to recycle and does not have an adverse effect on the environment.Moreover, the supporting projection is provided on the metal heat shield plate to support the plate-shaped heat source. As a result, the contact area of the heat shield plate to the heat source becomes smaller and the heat transfer amount from the plate heat source to the heat shield plate becomes smaller.
The amount of heat transmitted from the plate-shaped heat source to the casing through the heat shield plate and escaping to the outside is small, and excellent heat insulating properties can be obtained despite the use of the metal heat shield plate.
【0038】本発明の加熱調理器の平面ヒータによれ
ば、遮熱板と板状熱源とは、ケーシングに対して相互に
動き得るように連結されているので、それら3者に熱膨
張差があってもこれを吸収でき、この結果、上記3者間
に大きな熱応力が生じて変形或いは破損を生ずるおそれ
がない。According to the plane heater of the heating cooker of the present invention, the heat shield plate and the plate-shaped heat source are connected to the casing so as to be movable relative to each other, so that the three members have a difference in thermal expansion. Even if it exists, this can be absorbed, and as a result, there is no possibility that a large thermal stress will occur between the above three members and cause deformation or damage.
【0039】本発明の加熱調理器の平面ヒータによれ
ば、遮熱板の支え突部を傾斜状態に切り起こされた切起
片から構成し、該切起片が板状熱源の加熱面への当接に
より伏する方向に弾性変形してその復元弾発力により板
状熱源を加熱面に押し付けるようにしたので、板状熱源
が常に加熱面に適度な加圧力で押し付けられ、加熱面へ
の熱伝導が良好に行われるようになる。According to the flat heater of the heating cooker of the present invention, the supporting projection of the heat shield plate is composed of the cut and raised piece cut and raised in an inclined state, and the cut and raised piece is directed to the heating surface of the plate-shaped heat source. The elastic heat is applied to the heating surface to press the plate heat source against the heating surface, so that the plate heat source is always pressed against the heating surface with an appropriate pressure, The heat conduction of the is improved.
【0040】本発明の加熱調理器の平面ヒータによれ
ば、支え突部を構成する切起片は遮熱板の幅方向略全体
にわたり形成されているので、遮熱板の板厚が薄くて
も、遮熱板の強度が向上し、板状熱源を加熱面に良好に
押圧できる。According to the flat heater of the heating cooker of the present invention, since the cut-and-raised pieces forming the supporting projections are formed over substantially the entire width direction of the heat shield plate, the plate thickness of the heat shield plate is small. Also, the strength of the heat shield plate is improved, and the plate-shaped heat source can be satisfactorily pressed against the heating surface.
【0041】本発明の加熱調理器の平面ヒータによれ
ば、支え突部を構成する切起片の先端部は折り曲げら
れ、その折り曲げのための屈曲部が板状熱源に当接する
ので、板状熱源が切起片によって傷付けられるおそれが
ない。According to the flat heater of the heating cooker of the present invention, the tip end of the cut-and-raised piece that constitutes the support protrusion is bent, and the bent portion for bending is in contact with the plate-shaped heat source. There is no risk of the heat source being damaged by the cut and raised pieces.
【0042】本発明の加熱調理器の平面ヒータによれ
ば、遮熱板には光反射のためのメッキが施されているの
で、遮熱板が板状熱源からの輻射によって受ける熱量が
少なく、一層断熱性が向上する。According to the flat heater of the heating cooker of the present invention, since the heat shield plate is plated for light reflection, the heat shield plate receives less heat due to radiation from the plate-shaped heat source, The heat insulation is further improved.
【0043】本発明の加熱調理器の平面ヒータによれ
ば、板状熱源と遮熱板との間隔寸法の方がケーシングの
底面と遮熱板との間隔寸法よりも大きく設定されている
ので、限られたスペースで板状熱源から遮熱板に輻射に
よって伝播される熱量を少なくすることができる。According to the plane heater of the heating cooker of the present invention, the distance between the plate-shaped heat source and the heat shield is set larger than the distance between the bottom of the casing and the heat shield. It is possible to reduce the amount of heat that is propagated by radiation from the plate heat source to the heat shield plate in a limited space.
【0044】本発明の加熱調理器の平面ヒータによれ
ば、支え突部の長手方向両端部が板状熱源の発熱線の配
置部位から外れた部位において当接しているので、支え
突部の長手方向両端部にエッジがあって、そのエッジに
よって板状熱源が傷付けられても、支え突部が発熱線に
接触するおそれがなく、漏電事故のおそれがない。According to the flat heater of the heating cooker of the present invention, since both ends of the supporting protrusion in the longitudinal direction are in contact with each other at a portion deviating from the portion where the heating wire of the plate-shaped heat source is disposed, the length of the supporting protrusion is long. Even if there are edges at both ends in the direction and the plate-shaped heat source is damaged by the edges, there is no risk of the support projection contacting the heating wire, and there is no risk of electrical leakage.
【図1】本発明の第1の実施例を示す平面ヒータの部分
的な縦断側面図FIG. 1 is a partial vertical sectional side view of a flat heater showing a first embodiment of the present invention.
【図2】平面ヒータ全体の縦断側面図FIG. 2 is a vertical sectional side view of the entire plane heater.
【図3】図2の III−III 線に沿う部分的な縦断側面図FIG. 3 is a partial vertical sectional side view taken along line III-III in FIG.
【図4】板状熱源の分解斜視図FIG. 4 is an exploded perspective view of a plate heat source.
【図5】平面ヒータの分解斜視図FIG. 5 is an exploded perspective view of a flat heater.
【図6】オーブングリルレンジの縦断面図FIG. 6 is a vertical sectional view of an oven grill range.
【図7】本発明の第2の実施例を示す図1相当図FIG. 7 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.
【図8】本発明の第3の実施例を示す図1相当図FIG. 8 is a diagram corresponding to FIG. 1 showing a third embodiment of the present invention.
【図9】本発明の第4の実施例を示す図1相当図FIG. 9 is a view corresponding to FIG. 1 showing a fourth embodiment of the present invention.
【図10】本発明の第5の実施例を示す図1相当図FIG. 10 is a view corresponding to FIG. 1 showing a fifth embodiment of the present invention.
【図11】本発明の第6の実施例を示す図1相当図FIG. 11 is a diagram corresponding to FIG. 1 showing a sixth embodiment of the present invention.
【図12】従来の平面ヒータを示す図5相当図FIG. 12 is a view corresponding to FIG. 5 showing a conventional flat heater.
【図13】図1相当図FIG. 13 is a view equivalent to FIG.
【図14】従来の他の平面ヒータを示す図5相当図FIG. 14 is a view corresponding to FIG. 5 showing another conventional planar heater.
【図15】図1相当図FIG. 15 is a view equivalent to FIG.
12は内箱、12aは加熱面、13は加熱室、17は平
面ヒータ、21はケーシング、22は遮熱板、23は板
状熱源、24は発熱線、25は芯マイカ板、26は絶縁
マイカ板,30は切起片(支え突部)、33は突起、3
5は遮熱板、37は切起片(支え突部)、38は遮熱
板、39は切起片、40は切起片(支え突部)、41は
遮熱板、43は突部(支え突部)、44は遮熱板、46
は突部(支え突部)、47は遮熱板、48は波形部(支
え突部)である。Reference numeral 12 is an inner box, 12a is a heating surface, 13 is a heating chamber, 17 is a flat heater, 21 is a casing, 22 is a heat shield plate, 23 is a plate-shaped heat source, 24 is a heating wire, 25 is a core mica plate, and 26 is insulating. Mica plate, 30 is a cut and raised piece (supporting protrusion), 33 is a protrusion, 3
Reference numeral 5 is a heat shield plate, 37 is a cut and raised piece (supporting protrusion), 38 is a heat shield plate, 39 is a cut and raised piece, 40 is a cut and raised piece (supporting protrusion), 41 is a heat shield plate, and 43 is a protrusion. (Supporting protrusion), 44 is a heat shield plate, 46
Is a protrusion (supporting protrusion), 47 is a heat shield plate, and 48 is a corrugated portion (supporting protrusion).
Claims (13)
グと、 このケーシングに設けられ、ケーシングを加熱調理器の
加熱面に取り付けることにより、その加熱面に押し当て
られる板状熱源と、 この板状熱源と前記ケーシングの底面との間に設けられ
た金属製の遮熱板と、 この遮熱板に、前記板状熱源に当接して該板状熱源を支
えるべく突設された支え突部とを具備してなる加熱調理
器の平面ヒータ。1. A metal casing formed in a flat box shape, a plate-shaped heat source which is provided on the casing and is pressed against the heating surface of the heating cooker by attaching the casing to the heating surface. A heat shield plate made of metal provided between the plate heat source and the bottom surface of the casing, and a supporting protrusion provided on the heat shield plate so as to abut the plate heat source and support the plate heat source. A flat heater for a heating cooker, which includes a section.
するために、ケーシングに対して互に自由移動可能に連
結されていることを特徴とする請求項1記載の加熱調理
器の平面ヒータ。2. The cooking according to claim 1, wherein the plate-shaped heat source and the heat shield plate are connected to the casing such that they can move freely relative to each other in order to absorb the difference in thermal expansion. Flat heater.
し形成された切起片からなり、該切起片は板状熱源の加
熱面への当接により伏する方向に弾性変形してその起立
方向への復元弾発力により板状熱源を加熱面に押し付け
ることを特徴とする請求項1または2記載の加熱調理器
の平面ヒータ。3. The support projection comprises a cut-and-raised piece formed by cutting and raising the heat shield plate in an inclined shape, and the cut-and-raised piece is elastically deformed in a direction in which the cut-and-raised piece is bent by contact with a heating surface of the plate-shaped heat source. The flat heater of the heating cooker according to claim 1 or 2, wherein the plate-shaped heat source is pressed against the heating surface by the restoring elastic force in the standing direction.
該遮熱板の幅方向略全体に連続して切り起こし形成され
ていることを特徴とする請求項3記載の加熱調理器の平
面ヒータ。4. The heating piece according to claim 3, wherein the cut-and-raised piece forming the support projection is formed by cutting and raising the heat-shielding plate continuously over substantially the entire widthwise direction of the heat-shielding plate. A flat heater for a cooker.
て該遮熱板を支える突部が設けられていることを特徴と
する請求項1ないし4のいずれかに記載の加熱調理器の
平面ヒータ。5. The heating cooker according to claim 1, wherein a bottom surface of the casing is provided with a protrusion that abuts against the heat shield plate and supports the heat shield plate. Flat heater.
る複数個の突起が形成され、遮熱板はこの突起を介して
ケーシングの底面に支えられていることを特徴とする請
求項1ないし4のいずれかに記載の加熱調理器の平面ヒ
ータ。6. The heat shield plate is formed with a plurality of protrusions projecting to the side opposite to the supporting protrusions, and the heat shield plate is supported by the bottom surface of the casing via the protrusions. A flat heater for a heating cooker according to any one of claims 1 to 4.
対側に突出するように形成され、遮熱板は一方側に突出
する切起片を介してケーシングの底面に支えられると共
に、他方側に突出する切起片を支え突部として板状熱源
に当接させていることを特徴とする請求項1ないし4の
いずれかに記載の加熱調理器の平面ヒータ。7. The heat shield plate is formed with a plurality of cut-and-raised pieces so as to project to opposite sides, and the heat shield plate is supported by the bottom surface of the casing via the cut-and-raised pieces that project to one side. At the same time, the cut-and-raised piece projecting to the other side is brought into contact with the plate-shaped heat source as a support projection, and the flat heater of the heating cooker according to any one of claims 1 to 4.
平面に形成されていることを特徴とする請求項1ないし
7のいずれかに記載の加熱調理器の平面ヒータ。8. The flat heater for a heating cooker according to claim 1, wherein the support protrusion has a flat portion in contact with the plate-shaped heat source.
り曲げられ、その折り曲げのための屈曲部が板状熱源に
当接していることを特徴とする請求項3,4,6,7の
いずれかに記載の加熱調理器の平面ヒータ。9. The tip of the cut-and-raised piece forming the support projection is bent, and the bent portion for bending is in contact with the plate-shaped heat source. 7. A flat heater for a heating cooker according to any one of 7.
も、遮熱板とケーシングの底面との間隔の方が大きく設
定されていることを特徴とする請求項1ないし9のいず
れかに記載の加熱調理器の平面ヒータ。10. The distance between the heat shield plate and the bottom surface of the casing is set to be larger than the distance between the plate heat source and the heat shield plate. The flat heater of the heating cooker according to.
側に凸の波形部を介してケーシングの底面に支えられる
と共に、他方側に凸の波形部を支え突部として板状熱源
に当接させていることを特徴とする請求項1または2記
載の加熱調理器の平面ヒータ。11. The heat shield plate is formed to have a substantially corrugated cross section, and is supported on the bottom surface of the casing through a corrugated portion that is convex on one side, and the corrugated portion that is convex on the other side is used as a supporting protrusion for a plate-shaped heat source. The flat heater for a heating cooker according to claim 1 or 2, which is in contact with the flat heater.
縁板により挟んで構成され、支え突部の長手方向両端部
は板状熱源のうち、発熱線の配置部位から外れた部位に
おいて該板状熱源に当接していることを特徴とする請求
項1ないし11のいずれかに記載の加熱調理器の平面ヒ
ータ。12. The plate-shaped heat source is constituted by sandwiching a heating wire between insulating plates such as mica plates, and both ends in the longitudinal direction of the supporting protrusion are located at a portion of the plate-shaped heat source that is out of the area where the heating wire is arranged. The flat heater for a heating cooker according to any one of claims 1 to 11, which is in contact with a plate-shaped heat source.
ためのメッキが施されていることを特徴とする請求項1
ないし12のいずれかに記載の加熱調理器の平面ヒー
タ。13. The surface of the heat shield plate on the plate-shaped heat source side is plated for light reflection.
A flat heater for a heating cooker according to any one of 1 to 12.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5259638A JP3020782B2 (en) | 1993-10-18 | 1993-10-18 | Flat heater of cooking device |
GB9420174A GB2282945B (en) | 1993-10-18 | 1994-10-06 | Heating apparatus with flat heater |
KR1019940026289A KR0165699B1 (en) | 1993-10-18 | 1994-10-14 | Heater of microwave oven |
FR9412400A FR2711413B1 (en) | 1993-10-18 | 1994-10-18 | Flat heating element for a heater. |
CN94117383A CN1062707C (en) | 1993-10-18 | 1994-10-18 | Plane Heator for heating cooker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5259638A JP3020782B2 (en) | 1993-10-18 | 1993-10-18 | Flat heater of cooking device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07113529A true JPH07113529A (en) | 1995-05-02 |
JP3020782B2 JP3020782B2 (en) | 2000-03-15 |
Family
ID=17336844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5259638A Expired - Fee Related JP3020782B2 (en) | 1993-10-18 | 1993-10-18 | Flat heater of cooking device |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP3020782B2 (en) |
KR (1) | KR0165699B1 (en) |
CN (1) | CN1062707C (en) |
FR (1) | FR2711413B1 (en) |
GB (1) | GB2282945B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100646876B1 (en) * | 2004-08-09 | 2006-11-23 | 엘지전자 주식회사 | Mounting structure of heating element |
KR100705071B1 (en) * | 2004-08-09 | 2007-04-06 | 엘지전자 주식회사 | Mounting structure of heating element |
JP2007260034A (en) * | 2006-03-28 | 2007-10-11 | Mitsubishi Electric Corp | Dishwasher/dryer and sink embedded therewith |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3408137B2 (en) * | 1998-02-27 | 2003-05-19 | 三洋電機株式会社 | Cooking device |
EP0852317B1 (en) * | 1998-03-27 | 2003-10-29 | Electrolux AG | Cooking chamber with an air inlet and a heating element arrangement |
KR100583673B1 (en) * | 2004-06-08 | 2006-05-26 | 한국전기연구원 | Heater for radiating infrared ray with high sensitivity to heat |
KR100658839B1 (en) * | 2004-08-12 | 2006-12-15 | 엘지전자 주식회사 | Mounting structure of heating element |
CN105222183A (en) * | 2015-10-20 | 2016-01-06 | 刘万斌 | A kind of commercial induction cooker with detachable panel |
JP6455731B2 (en) * | 2016-03-09 | 2019-01-23 | パナソニックIpマネジメント株式会社 | Cooker |
JP6519881B2 (en) * | 2016-03-09 | 2019-05-29 | パナソニックIpマネジメント株式会社 | Cooker |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR844739A (en) * | 1937-11-16 | 1939-07-31 | Electric hot plate | |
GB1047013A (en) * | 1962-06-06 | 1966-11-02 | Oatley Technical Dev | Improvements relating to electrically heated boiling and heating plates |
US3845273A (en) * | 1973-11-28 | 1974-10-29 | Gen Electric | Composite metal plate surface heating unit |
US4311899A (en) * | 1978-11-17 | 1982-01-19 | E.G.O. Elektro-Gerate, Blanc Und Fischer | Cooking apparatus |
DE2909238A1 (en) * | 1979-03-09 | 1980-09-11 | Karl Fischer | HEATING ELEMENT FOR HEATING FOOD OR THE LIKE |
GB2061091B (en) * | 1979-10-23 | 1983-11-30 | Pifco Ltd | Electrically heated cooking pot |
DE3686735T2 (en) * | 1985-04-15 | 1993-01-28 | Matsushita Electric Ind Co Ltd | HIGH-FREQUENCY HEATER WITH ELECTRICAL HEATER. |
NL8600989A (en) * | 1986-04-18 | 1987-11-16 | Pol Ovenbouw B V V D | Electric heating element for ovens, dryers or central heating - has two internal reflectors of coated corrugated paper and insulators sealed inside element casing |
CN2067377U (en) * | 1990-06-12 | 1990-12-12 | 忻赟 | Internal thermal type safety electric cooking stove |
US5221829A (en) * | 1990-10-15 | 1993-06-22 | Shimon Yahav | Domestic cooking apparatus |
-
1993
- 1993-10-18 JP JP5259638A patent/JP3020782B2/en not_active Expired - Fee Related
-
1994
- 1994-10-06 GB GB9420174A patent/GB2282945B/en not_active Expired - Fee Related
- 1994-10-14 KR KR1019940026289A patent/KR0165699B1/en not_active IP Right Cessation
- 1994-10-18 FR FR9412400A patent/FR2711413B1/en not_active Expired - Fee Related
- 1994-10-18 CN CN94117383A patent/CN1062707C/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100646876B1 (en) * | 2004-08-09 | 2006-11-23 | 엘지전자 주식회사 | Mounting structure of heating element |
KR100705071B1 (en) * | 2004-08-09 | 2007-04-06 | 엘지전자 주식회사 | Mounting structure of heating element |
JP2007260034A (en) * | 2006-03-28 | 2007-10-11 | Mitsubishi Electric Corp | Dishwasher/dryer and sink embedded therewith |
Also Published As
Publication number | Publication date |
---|---|
KR0165699B1 (en) | 1998-12-15 |
KR950011926A (en) | 1995-05-16 |
GB2282945B (en) | 1997-09-24 |
JP3020782B2 (en) | 2000-03-15 |
FR2711413A1 (en) | 1995-04-28 |
GB2282945A (en) | 1995-04-19 |
CN1062707C (en) | 2001-02-28 |
FR2711413B1 (en) | 1997-10-24 |
GB9420174D0 (en) | 1994-11-23 |
CN1111436A (en) | 1995-11-08 |
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