JP3020782B2 - Flat heater of cooking device - Google Patents
Flat heater of cooking deviceInfo
- Publication number
- JP3020782B2 JP3020782B2 JP5259638A JP25963893A JP3020782B2 JP 3020782 B2 JP3020782 B2 JP 3020782B2 JP 5259638 A JP5259638 A JP 5259638A JP 25963893 A JP25963893 A JP 25963893A JP 3020782 B2 JP3020782 B2 JP 3020782B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- heat source
- heat
- heat shield
- flat heater
- 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
Links
- 238000010411 cooking Methods 0.000 title claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 65
- 239000002184 metal Substances 0.000 claims description 16
- 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
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 10
- 239000012212 insulator Substances 0.000 description 10
- 239000003365 glass fiber Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 7
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 239000010850 non-combustible waste Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 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)
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 of a cooking device 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 In an oven grill range, for example, as a lower heater for heating food from below, an external flat heater having a structure in which a bottom surface of an inner box constituting a heating chamber is used as a heat radiation surface is used. 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。The flat heater mainly comprises a plate-like 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 constituting 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。[0004] As such a flat heater, conventionally, FIG.
13 and FIG. 14 and FIG.
And the structure shown in FIG. The planar heater 1 shown in FIGS. 12 and 13 has a plate-like heat source 2 attached to a rectangular container-like casing 4 via a heat insulator 3 made of glass fiber, and the casing 4 is fixed to an inner box. 2 is pressed against the bottom surface of the inner box. FIG.
4 and FIG. 15, the plate-shaped heat source 2 is attached to the casing 4 via a metal heat shield plate 6 and the casing 4 is fixed to the bottom surface of the inner box.
Is pressed against the bottom of the inner box. The heat insulator 3 and the heat shield plate 6 have a function of cutting off heat conduction from the plate heat source 2 to the casing 4 and pressing the plate 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。The flat heater 1 shown in FIGS. 12 and 13 is excellent in heat insulation since the heat insulator 3 is made of glass fiber. However, since the heat insulator 3 is manufactured by accumulating glass fibers, the thickness of the heat source 2 varies greatly. 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. Moreover, when the flat heater 1 is disassembled and discarded, the heat insulator 3 made of glass fiber is difficult to recycle, is nonflammable and cannot be incinerated, and eventually becomes noncombustible 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 a glass fiber heat insulator 3.
Since there is no such dimensional variation as described above, there is no variation in the pressing force of the plate heat source 2 against the bottom surface of the inner box. Therefore, the variation in the amount of heat transfer from the plate heat source 2 to the bottom surface of the inner box is small, and the resources are recycled. Is easy. However, the metal heat shield 6
Since the thermal conductivity is 100 times or more higher than that of the heat insulator 3 made of glass fiber, the heat shield plate 6 that contacts the plate heat source 2 with a large area 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 glass fiber heat insulator 3 has excellent heat insulating properties, but since it eventually becomes non-combustible waste and adversely affects the environment, the use of the glass fiber heat insulator 3 is avoided. 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 flat heater excellent in heat insulation 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。[0008] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a flat heater of a heating cooker having excellent heat insulating properties 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 of a cooking device according to the present invention comprises a metal casing formed in a flat box shape and a casing provided on the casing, and the casing is attached to a heating surface of the cooking device. Thus, a plate-shaped heat source pressed against the heating surface, a metal heat shield provided between the plate-shaped heat source and the bottom surface of the casing, and a plate for supporting the plate-shaped heat source on the heat shield And a projecting support projection.
【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 projection is formed of a cut-and-raised piece formed by cutting and raising the heat-shielding plate in an inclined manner, and the cut-and-raised piece is elastic in a direction in which the cut-and-raised piece comes down by contact with the heating surface of the plate-shaped heat source. The plate-shaped heat source can be pressed against the heating surface by deformation and restoring elastic force in the rising direction. In addition, it is preferable that the cut-and-raised piece constituting the supporting projection is formed by continuously cutting and raising substantially the entire width of the heat shield plate in order to increase the strength 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の方を、遮熱板とケーシング
の底面との間隔よりも大きく設定することもできる。[0011] In order to minimize the amount of heat transfer by radiation from the plate-like heat source to the heat shield plate, the heat shield plate can be plated. Also, in order to minimize the amount of heat transmitted from the plate heat source to the heat shield plate by radiation in the limited space,
The distance between the plate heat source and the heat shield plate can be set to be larger than the distance between the heat shield plate and the bottom surface of the casing.
【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。[Function] Since the contact area of the heat shield with the plate-like heat source is small, even if the heat shield is formed 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 insulating property 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 configuration 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 the inner box 12 is a heating chamber 13. A magnetron 15 that supplies microwaves into the heating chamber 13 through the waveguide 14 is provided outside the inner box 12.
Are arranged. A lamp heater 16 is provided inside the upper portion of the inner box 12, and a flat heater 17 according to the present invention is provided on the outer bottom surface. The flat heater 17 uses the bottom surface of the inner box 12 as the heating surface 12a, and heats the heating surface 12a to heat the 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, a mounting frame 1 is provided.
The motor 19 is attached via the motor 8. The rotating shaft 19a of the motor 19 passes through the flat heater 17 and protrudes into the inner box 12 (heating chamber 13).
The turntable 20 is attached to the upper end of the “a”. The food to be heated is placed on the turntable 20 and is rotated by the turntable 20, thereby preventing uneven heating of the food.
【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。The flat heater 17 is, as shown in FIGS. 2 and 5, a casing 2 formed in a flat rectangular container shape.
1, a heat shield plate 22 provided in the casing 21 and a plate heat source 23 supported by the heat shield plate 22 so as to be located on the open upper surface of the casing 21.
Specifically, as shown in FIG. 4, the plate heat source 23 includes a core mica plate 25 on which a heating wire 24 such as a nichrome wire is wound.
The core mica plate 25 is arranged and sandwiched by two insulating mica plates 26 for insulation 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. The plating reflects radiant heat (infrared rays) from the plate heat source 23 to prevent the casing 21 and the heat shield plate 22 from being heated by the radiant heat from the plate 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 four corners. In this case, as shown in FIG. 1, the inner diameter of the through holes 21 a, 22 a, and 23 a formed in the casing 21, the heat shield plate 22, and the plate-like heat source 23 for passing the eyelets 27 is larger than the outer diameter of the eyelets 27. Are also formed with a large diameter. Accordingly, the heat shield plate 22 and the plate-shaped heat source 23 can freely move in the lateral direction with respect to the casing 21, and the casing 21 when the plate-shaped heat source 23 generates heat is used.
The difference in the amount of thermal expansion between the heat shield plate 22 and the plate 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 has a casing 2 mounted on a mounting seat 28 fixed to the lower surface of the heating surface 12a of the inner box 12.
1 is attached by tightening the bottom surface with a screw 29. When the casing 21 is attached to the attachment seat 28, the plate-like 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 transmitted 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, the heat shield plate 22 includes
As shown in FIG. 5, the cut and raised piece 3 as a plurality of support projections
0 is formed by cutting and raising;
A plurality of conical protrusions 33 protruding downward are formed by drawing on the crosspiece 32 between the long holes 31 generated by the cut-and-raised 0. In this case, the protrusion height H1 of the cut-and-raised piece 30 is set higher than the protrusion 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。Each of the cut and raised pieces 30 is 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, the cut and raised pieces 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 a 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 in 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 of the bent portion 30 b in the longitudinal direction are in contact with the insulating mica plate 26 below the plate-like heat source 23 at a portion deviated from the portion where the heating wires 24 are arranged. It comes into contact.
【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１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, before the casing 21 is mounted on the mounting seat 28, the distance L1 between the inner bottom surface of the casing 21 and the upper surface of the plate heat source 23 is determined by the lower surface of the mounting seat 28 and the heating surface of the inner box 12. The distance L2 is set to be longer than the distance L2 between the first and second electrodes 12a. Thereby, the casing 21 is attached to the mounting seat 2.
8, the cut-and-raised piece 30 is elastically deformed in a downward direction (shown by an arrow A in FIG. 1) from a state shown by a solid line in FIG. 1 to a state shown by a two-dot chain line. Plate heat source 2 by the resilient force to return to the original state
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 direction of the arrow A by itself, but elastically deforms so as to rotate in the direction of the arrow A about the projection 33 together with the crosspiece 32. In FIG. 5, reference numerals 34 are lead wires 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 configured as described above, the following effects can be obtained. That is,
Since the heat shield plate 22 supports the plate heat source 23 by the cut-and-raised pieces 30, the contact area of the heat shield plate 22 with the plate heat source 23 becomes extremely small. For this reason, the heat shielding plate 2
2, the amount of heat transmitted to the casing 2 by conduction is reduced, and the amount of heat transferred from the heat shield plate 22 to the casing 21 is also reduced, so that the heat shield (heat insulation) of the heat shield 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 on the bottom surface of the casing 21 via the projections 33, the contact of the heat shield plate 22 with the casing 21 is almost a point contact. Therefore, the contact area of the heat shield plate 22 with the casing 21 is extremely small, and the amount of heat transmitted 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 heat source 23 is larger than the distance L2 between the heat shield plate 22 and the bottom surface of the casing 21.
It is set longer. For this reason, in a limited space, the heat from the plate heat source 23 which becomes high temperature
2 and the heat transmission by radiation from the heat shield plate 22 to the casing 21 can be minimized. In this case, the heat shield plate 22 is plated, and the radiant heat from the plate heat source 23 is reflected by the plating, so that the amount of heat transmitted 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 piece 30 is cut and raised in an inclined manner, 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 downward direction and presses the plate-like heat source 23 against the heating surface 12a by the restoring resilience, the plate-like heat source 23 is always pressed against the heating surface 12 with an appropriate pressing force.
a can be held pressed. For this reason, the heat 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。In addition, since the cut-and-raised piece 30 is continuously cut and raised over substantially the entire width of the heat shield plate 22, the heat-shield plate 22 is strengthened in strength, and one cut and raised piece is formed. 3
0, the number of the protrusions 33 is at least
The plate-like heat source 23 can be pressed against the heating surface 12a over the entire length in the 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 heat source 23, the contact portion of the cut and raised piece 30 with the plate heat source 23 is an arcuate surface. For this reason, unlike the case where the upper end of the cut and raised piece that is merely cut and raised is brought into contact with the plate heat source 23, there is no risk of damaging the insulating mica plate 26 below the plate heat source 23, and the thin insulating mica is not damaged. Board 2
6 (thickness: 0.3 to 0.5 mm) is not broken, and the cut-and-raised piece 30 comes into contact with the heating wire 24, thereby causing no trouble such as causing a leakage fault.
【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 of the bent portion 30b in the longitudinal direction are in contact with the plate-shaped heat source 23 at a portion deviated from the portion where the heating wire 24 is arranged, the cut edges existing at both ends of the bent portion 30b in the longitudinal direction may be used. Even if the insulating mica plate 26 on the lower side of the plate-like heat source 23 is torn, there is no possibility that the cut and raised piece 30 will contact 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 figures, the same parts as those in FIG. In the second embodiment shown in FIG. 7, cut and raised pieces 36 and 37 are formed on the heat shield plate 35 by being alternately turned downward and upward to be vertically cut and raised. The heat shield plate 35 is supported on the bottom surface of the casing 21 by abutting the cut-up piece 36 facing downward on the bottom surface of the casing 21. Then, the plate-like heat source 23 is supported by the cut-and-raised piece 37 with the upwardly-facing cut-and-raised piece 37 as a support projection.
Support.
【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 39 is formed on a heat shield plate 38 by bending its peripheral edge downward, and a plurality of cut-and-raised The piece 40 is vertically cut upright. 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-like 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 projections 42 and 43 are formed on a heat shield plate 41 by drawing alternately downward and upward. This heat shield plate 41
Is supported on the bottom surface of the casing 21 by contacting a downwardly projecting projection 42 with the bottom surface of the casing 21. Then, the plate-like heat source 23 is supported by the protrusion 43 having the upwardly projecting protrusion 43 as a support protrusion.
【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 projection projecting upward.
5 is drawn. Further, a wavy projection 46 projecting 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 supports the plate-like heat source 23 by the corrugated portion 47.
【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.
Accordingly, the heat shield plate 47 has a substantially waveform in cross section. The heat shield plate 47 is supported by the casing 21 by bringing a downwardly projecting corrugated portion 48 into contact with the bottom surface of the casing 21. The heat source 23 is supported.
【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 in the case of the second to sixth embodiments, the heat shield plates 35, 38, 41, 44, 47 have a small contact area with both the plate heat source 23 and the casing 21. As in the case of the first embodiment, the effect of improving heat insulation can be obtained. In particular, in the fourth embodiment shown in FIG. 9, since the planar heat source 23 is supported by the planar upper end surface of the projection 43, the lower insulating mica plate 26 is not damaged. In this case, the second
In the third embodiment, the horizontal pieces are bent at the tip portions of the cut and raised pieces 37 and 40, and the plate-like heat source 2 is formed by the horizontal pieces.
3 may be supported.
【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 present invention is applied to a flat heater mounted on the bottom surface (heating surface 12a) of the inner box 12, but may be applied to a flat heater mounted on the upper surface of the inner box. Further, the eyelet 27 may be changed to a stepped shaft fixed to the casing, and the heat shield plate may be supported by the step 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 embodiment described above and shown in the drawings. For example, the present invention is not limited to a flat heater in an oven grill range, but can be widely applied to a general flat heater in a cooking device. Various modifications can be made without departing from the scope of the present invention.
【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, since a metal heat shield plate is employed as a member for heat insulation, there is a case where a heat insulator made of glass fiber is used. In contrast, it is possible to recycle and there is no risk of adversely affecting the environment.Moreover, a supporting projection is provided on the metal heat shield plate, and the plate-shaped heat source is supported by this supporting projection. As a result, the contact area of the heat shield with the plate-shaped heat source is reduced and the amount of heat transfer from the plate-shaped heat source to the heat shield is reduced.
The amount of heat transmitted from the plate-shaped heat source to the casing via the heat shield and escaping to the outside is small, and excellent heat insulating properties can be obtained despite the use of the metal heat shield.
【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 flat heater of the cooking device of the present invention, the heat shield plate and the plate-like heat source are connected to the casing so as to be movable with respect to each other. This can be absorbed, and as a result, there is no fear that a large thermal stress is generated between the three members to cause deformation or breakage.
【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 support projection of the heat shield plate is constituted by a 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 heat source. The plate-shaped heat source is pressed against the heating surface with an appropriate pressing force because the plate-shaped heat source is pressed against the heating surface by the elastic force of its restoring force. Satisfactorily conducts heat.
【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 piece constituting the support projection is formed over substantially the entire width of the heat shield plate, the thickness of the heat shield plate is small. In addition, the strength of the heat shield plate is improved, and the plate 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 of the cut-and-raised piece constituting the supporting projection is bent, and the bent portion for bending comes into contact with the plate-shaped heat source. There is no danger that the heat source will be 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 cooking device of the present invention, since the heat shield plate is plated for light reflection, the heat shield plate receives a small amount of heat due to radiation from the plate 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 flat heater of the cooking device of the present invention, the interval between the plate-shaped heat source and the heat shield is set to be larger than the interval between the bottom surface of the casing and the heat shield. In a limited space, the amount of heat transmitted from the plate heat source to the heat shield plate by radiation can be reduced.
【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 in the longitudinal direction of the support projection come into contact with a portion of the plate-shaped heat source which is apart from the location of the heating wire, the length of the support projection can be reduced. Even if there is an edge at both ends in the direction and the plate-shaped heat source is damaged by the edge, there is no danger that the supporting projection contacts the heating wire and there is no danger of a leakage fault.
【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 longitudinal side view of a flat heater according to 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 side view of the entire flat 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 longitudinal side view taken along the line III-III of FIG. 2;
【図４】板状熱源の分解斜視図FIG. 4 is an exploded perspective view of a plate-like 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 longitudinal 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 view 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 view 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 diagram corresponding to FIG. 1;
【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 flat heater.
【図１５】図１相当図FIG. 15 is a diagram corresponding to FIG. 1;
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。12 is an inner box, 12a is a heating surface, 13 is a heating chamber, 17 is a plane heater, 21 is a casing, 22 is a heat shield plate, 23 is a plate heat source, 24 is a heating wire, 25 is a mica core plate, and 26 is insulating. Mica plate, 30 is cut and raised piece (supporting projection), 33 is projection, 3
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 projection), 44 is a heat shield plate, 46
Denotes a projection (supporting projection), 47 denotes a heat shield plate, and 48 denotes a corrugated portion (supporting projection).
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。A metal casing formed in a flat box shape; a plate-shaped heat source provided in the casing and attached to the heating surface of the heating cooker so as to be 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 a support protrusion projecting from the heat-shield plate so as to abut the plate-shaped heat source to support the plate-shaped heat source. A flat heater of a heating cooker comprising:
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 device according to claim 1, wherein the plate-shaped heat source and the heat shield plate are connected to each other so as to be freely movable with respect to the casing to absorb a difference in thermal expansion. Vessel 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 manner, and the cut-and-raised piece is elastically deformed in a direction in which the plate-like heat source comes down by contact with the heating surface. The flat heater of a heating cooker according to claim 1 or 2, wherein the plate-like heat source is pressed against the heating surface by the restoring elastic force in the rising 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 device according to claim 3, wherein the cut-and-raised piece constituting the supporting projection is formed by continuously cutting and raising substantially the entire width direction of the heat shield plate on the heat shield plate. Flat heater of 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 projection is provided on a bottom surface of the casing to contact the heat shield plate and support 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 projections protruding on a side opposite to the support projection, and the heat shield plate is supported on the bottom surface of the casing via the projections. A flat heater for a cooking device 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. A plurality of cut-and-raised pieces are formed on the heat shield plate so as to project to opposite sides, and the heat-shield plate is supported on the bottom surface of the casing via the cut and raised pieces protruding to one side. The flat heater of a heating cooker according to any one of claims 1 to 4, wherein the cut-and-raised piece protruding to the other side is brought into contact with the plate-shaped heat source as a support protrusion.
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 of a heating cooker according to claim 1, wherein a portion of the support projection that comes into contact with the plate-like heat source is formed flat.
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. A tip portion of a cut-and-raised piece constituting a supporting projection is bent, and a bent portion for bending is in contact with a plate-like heat source. 7. The flat heater of the heating cooker according to any one of 7.
熱板とケーシングの底面との間隔よりも大きく設定され
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 apparatus according to claim 1, wherein an interval between the plate-shaped heat source and the heat shield is set to be larger than an interval between the heat shield and the bottom surface of the casing. A flat heater of the heating cooker according to any one of the preceding claims.
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. A heat shield plate having a substantially corrugated cross section is supported on the bottom surface of the casing via a corrugated portion which is convex on one side, and a corrugated portion which is convex on the other side is used as a supporting protrusion for a plate-like heat source. The flat heater of a heating cooker according to claim 1, wherein the flat heater 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 a mica plate, and both ends in the longitudinal direction of the supporting projection are provided at portions of the plate-shaped heat source which are separated from the portion where the heating wire is arranged. The flat heater of a heating cooker according to any one of claims 1 to 11, wherein the flat heater is in contact with a plate-like 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 heat shield plate according to claim 1, wherein the surface on the plate heat source side is plated for light reflection.
13. The flat heater of the heating cooker according to any one of claims 12 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 |
| CN94117383A CN1062707C (en) | 1993-10-18 | 1994-10-18 | Plane Heator for heating cooker |
| FR9412400A FR2711413B1 (en) | 1993-10-18 | 1994-10-18 | Flat heating element for a heater. |
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 JPH07113529A (en) | 1995-05-02 |
| JP3020782B2 true 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) |
Families Citing this family (10)
| 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 |
| 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 |
| KR100658839B1 (en) * | 2004-08-12 | 2006-12-15 | 엘지전자 주식회사 | Mounting structure of heating element |
| JP4567625B2 (en) * | 2006-03-28 | 2010-10-20 | 三菱電機株式会社 | Dishwasher and sink incorporating this |
| 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 |
| CA1253923A (en) * | 1985-04-15 | 1989-05-09 | Ichiroh Hori | High frequency heating apparatus with electric heating device |
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| KR0165699B1 (en) | 1998-12-15 |
| FR2711413A1 (en) | 1995-04-28 |
| KR950011926A (en) | 1995-05-16 |
| GB2282945B (en) | 1997-09-24 |
| JPH07113529A (en) | 1995-05-02 |
| CN1062707C (en) | 2001-02-28 |
| FR2711413B1 (en) | 1997-10-24 |
| GB9420174D0 (en) | 1994-11-23 |
| CN1111436A (en) | 1995-11-08 |
| GB2282945A (en) | 1995-04-19 |
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Legal Events
| Date | Code | Title | Description |
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| LAPS | Cancellation because of no payment of annual fees |