JPS63146383A - Electric heating unit - Google Patents
Electric heating unitInfo
- Publication number
- JPS63146383A JPS63146383A JP29186586A JP29186586A JPS63146383A JP S63146383 A JPS63146383 A JP S63146383A JP 29186586 A JP29186586 A JP 29186586A JP 29186586 A JP29186586 A JP 29186586A JP S63146383 A JPS63146383 A JP S63146383A
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- storage case
- heat insulating
- screws
- insulating board
- 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
- 238000005485 electric heating Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、一般家庭において、主に調理用として使用さ
れる電熱ユニットに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric heating unit used mainly for cooking in ordinary households.
従来の技術
従来のこの種の電熱ユニットは第３図に示すように、有
底円筒状の収納ケース１に、シリカあるいはアルミナ繊
維を主成分とす・る断熱材からなる断熱基板２を収納し
、この断熱基板２に設けた溝３に、螺線状に巻かれた電
熱線４を収納し、そしてこの電熱線４に電圧を印加する
ことによって天板５を加熱していた。また前記収納ケー
ス１と天板６は、収納ケース１の外周面る天板６の内側
面で挾持することで一体に構成していた。2. Description of the Related Art As shown in FIG. 3, a conventional electric heating unit of this type consists of a bottomed cylindrical storage case 1 containing a heat insulating substrate 2 made of a heat insulating material mainly composed of silica or alumina fibers. A spirally wound heating wire 4 is housed in a groove 3 provided in the heat insulating substrate 2, and a voltage is applied to the heating wire 4 to heat the top plate 5. Further, the storage case 1 and the top plate 6 are integrally formed by being sandwiched between the inner surface of the top plate 6 which is the outer circumferential surface of the storage case 1.
発明が解決しようとする問題点
しかしながら上記従来の構成では、電熱線４から発生す
る熱量が大きくなると、前記収納ケース１および天板６
の断熱基板２に対向もしくは当接する内面が高温となり
、これらの内面が伸びるのに対して外面の伸θが遅れる
ためにそりが発生し、このそりによって被加熱物までの
距離の変化が生じ、その結果天板上の温度むらを発生さ
せ調理上不都合があった。Problems to be Solved by the Invention However, in the conventional configuration described above, when the amount of heat generated from the heating wire 4 increases, the storage case 1 and the top plate 6
The inner surfaces facing or in contact with the heat insulating substrate 2 become hot, and while these inner surfaces expand, the expansion θ of the outer surface lags behind, causing warping, and this warping causes a change in the distance to the object to be heated. As a result, temperature unevenness occurs on the top plate, which is inconvenient for cooking.
本発明は上記従来の問題点を解決するもので、電熱線の
発熱量が大きくガっても、天板および収納ケースにそシ
を生ずることのない製品信頼性の高い電熱ユニットを提
供することを目的とするものである。The present invention solves the above-mentioned conventional problems, and provides an electric heating unit with high product reliability that does not cause damage to the top plate and storage case even if the heating wire generates a large amount of heat. The purpose is to
問題点を解決するための手段
上記目的を達成するために本発明の電熱ユニットは、金
属板からなる有底筒状の天板と螺線状に巻かれ前記天板
を加熱する電熱線と、この電熱線を配設させる溝を有す
る断熱基板と、この断熱基板を収納する有底筒状の収納
ケースとを備え、前記天板と断熱基板と収納ケースの中
心部に孔を貫通させて設け、かつ前記天板の内側面にね
じを設けるとともに前記収納ケースの外側面に前記天板
のねじに対応するねじを設け、前記断熱基板を収納させ
た収納ケースと天板をねじによって一体に固定し、さら
に前記孔に固定部材を嵌通させて一体に挾持させた構成
を有するものである。Means for Solving the Problems In order to achieve the above object, the electric heating unit of the present invention comprises: a bottomed cylindrical top plate made of a metal plate; a heating wire wound in a spiral shape to heat the top plate; A heat insulating board having a groove for arranging the heating wire, and a cylindrical storage case with a bottom for storing the heat insulating board, and a hole is provided in the center of the top plate, the heat insulating board, and the storage case. , and screws are provided on the inner surface of the top plate, and screws corresponding to the screws of the top plate are provided on the outer surface of the storage case, and the storage case in which the insulation board is stored and the top plate are fixed together with the screws. Further, a fixing member is fitted into the hole and clamped together.
作 用
上記構成によれば、天板と収納ケースの周縁部は、それ
ぞれに対応させて設けたねじに従って回動させることで
一体に固定され、そして前記天板と収納ケースおよび断
熱基板は、これらの中心部に設けた孔に固定部材を嵌通
させて、この固定部材で天板と収納ケースと断熱基板が
一体に挾持されることから、電熱線の発熱による天板と
収納ケースの熱膨張および変形が抑制され、天板の上面
を平坦に保つことが可能となり、そして天板からの発熱
を均等化することができる。According to the above configuration, the peripheral edges of the top plate and the storage case are fixed together by rotating according to the screws provided respectively, and the top plate, the storage case, and the heat insulating board are fixed together. A fixing member is inserted into the hole provided in the center of the case, and the fixing member holds the top plate, storage case, and insulation board together, so that thermal expansion of the top plate and storage case due to heat generated by the heating wire is avoided. The deformation is suppressed, the top surface of the top plate can be kept flat, and the heat generated from the top plate can be equalized.
実施例
以下、本発明の実施例を第１図〜第２図にもとづいて説
明する。図において、６は圧延鋼板（ｓｐｃｃ）からな
る天板で、この天板６の被加熱物側の上面には、放射特
性に優れた遠赤外線物質よりなる放射層が、また反射側
には、耐熱性および耐熱衝撃性に優れたセラミックファ
イバーを含有する耐熱ホーロ物質からなる絶縁層がそれ
ぞれ形成されている。前記天板６の下方に配設された断
熱基板７はシリカおよびアルミナ繊維を主成分とする耐
熱温度１２００’Ｃ以上の断熱材を真空成形したもので
、この断熱基板７には螺旋状に巻かれた電熱線８が配設
される溝７．ａが設けられている。Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 and 2. In the figure, reference numeral 6 denotes a top plate made of rolled steel plate (SPCC). On the upper surface of the top plate 6 on the side of the object to be heated, there is a radiation layer made of a far-infrared material with excellent radiation characteristics, and on the reflection side, Each insulating layer is formed of a heat-resistant hollow substance containing ceramic fibers with excellent heat resistance and thermal shock resistance. The heat insulating board 7 disposed below the top plate 6 is vacuum-formed from a heat insulating material mainly composed of silica and alumina fibers with a heat resistance temperature of 1200'C or more. Groove 7 in which heated wire 8 is placed. A is provided.
前記電熱線８を配設した断熱基板７を収納する圧延鋼板
５ＰＣＣよりなる収納ケース９は天板６の内径より小さ
な外径を有し、かつ天板６の内側に位置させている。A storage case 9 made of rolled steel plate 5PCC that stores the heat insulating board 7 on which the heating wire 8 is arranged has an outer diameter smaller than the inner diameter of the top plate 6 and is located inside the top plate 6.
前記天板６の内側面にはめねじ１ｏが設けられ、このめ
ねじ１０に対応して前記収納ケース９の外側面におねじ
１１が設けられている。また前記天板６．断熱基板７お
よび収納ケース９の中心部には嵌通して孔１２，１３．
１４が設けられている。A female thread 1o is provided on the inner surface of the top plate 6, and a thread 11 is provided on the outer surface of the storage case 9 in correspondence with this female thread 10. Also, the top plate 6. Holes 12, 13, .
14 are provided.
これらの孔１２，１３．１４の前記断熱基板７に設けら
れた孔１３は、天板６に設けられた孔１２と収納ケース
９に設けられた孔１４よシ径大に構成され、この孔１３
において、天板６と収納ケース９に設けられた孔１２．
１４の周縁に設けられた７ランジ６ａと７ランジ９ａが
当接する構成となっている。そして前記めねじ１０とお
ねじ１１をねじ山を合わせて回動させて、前記断熱基板
７を収納した収納クース９と天板６を一体に固定し、か
つ前記孔１２，１３．１４に固定リング１６を嵌通させ
て、この固定リング１６の端部をハトメ状にかしめて一
体に挾持させる。また、前記収納ケース９の下部には電
源端子１６が設けられ、前記電熱線８と電気的に接続さ
れるとともに、この電源端子１６は絶縁碍子１７によっ
て収納ケース９と絶縁されている。The holes 13, 13, and 14 provided in the heat insulating substrate 7 are configured to have a larger diameter than the holes 12 provided in the top plate 6 and the holes 14 provided in the storage case 9. 13
, the hole 12 provided in the top plate 6 and the storage case 9.
7 langes 6a and 7 langes 9a provided on the periphery of 14 are in contact with each other. Then, by aligning the threads of the female screw 10 and the male screw 11 and rotating them, the housing coove 9 housing the heat insulating board 7 and the top plate 6 are fixed together, and the fixing ring is inserted into the holes 12, 13, 14. 16, and the ends of the fixing ring 16 are caulked into an eyelet shape to be held together. Further, a power terminal 16 is provided at the lower part of the storage case 9 and is electrically connected to the heating wire 8, and the power terminal 16 is insulated from the storage case 9 by an insulator 17.
上記実施例によれば、天板６と収納ケース９の周縁部は
、これらに設けたおねじ１１とめねじ１０を回動させて
絞めることで一体に固定され、そして天板６と断熱基板
７と収納ケース９の中心部は、固定リング１５によって
一体に挾持されているために、電熱線８からの発熱によ
る天板６および収納ケース９の熱膨張によるそり等の変
形は抑制され、天板６の上面は平坦に保たれ、そして天
板６から均等に発熱が行なわれる。また天板６と収納ケ
ース９は周縁部のねじ１０．１１と固定リング１５の二
ケ所において固定されているために、容易に分解するこ
とができ、補修が容易なものである。また前記天板６と
収納ケース９の周縁部はねじで一体に構成されるために
作業性が良いものである。According to the above embodiment, the peripheral edges of the top plate 6 and the storage case 9 are fixed together by rotating and tightening the male screws 11 and female screws 10 provided thereon, and the top plate 6 and the heat insulating substrate 7 Since the center of the storage case 9 and the storage case 9 are integrally held together by the fixing ring 15, deformation such as warpage due to thermal expansion of the top plate 6 and the storage case 9 due to heat generation from the heating wire 8 is suppressed, and the top plate The upper surface of the top plate 6 is kept flat, and heat is evenly generated from the top plate 6. Furthermore, since the top plate 6 and the storage case 9 are fixed at two places, the screws 10 and 11 on the periphery and the fixing ring 15, they can be easily disassembled and repaired. Further, since the peripheral edges of the top plate 6 and the storage case 9 are integrally formed with screws, workability is good.
なお本実施例においては、天板６にめねじ１゜を設け、
収納ケース９におねじ１１を設けた構成について説明し
たが、天板６におねじを設け、収納ケース９にめねじを
設けた構成としても同様の作用・効果を奏するものであ
る。In this embodiment, the top plate 6 is provided with a female thread of 1°,
Although a configuration in which the storage case 9 is provided with a screw 11 has been described, a configuration in which the top plate 6 is provided with a screw and the storage case 9 is provided with a female thread provides similar functions and effects.
また固定部材として固定リング１６を用いたがリベット
を用いても同様である。Further, although the fixing ring 16 is used as the fixing member, rivets may also be used.
発明の効果
上記実施例の説明から明らかなように本発明によれば、
天板と収納ケースの周縁部は、これらにそれぞれ対応さ
せて設けたねじを回動させて絞めることで一体に固定さ
れ、そして天板と断熱基板と収納ケースの中心部は、固
定部材によって一体に挾持されているために、電熱線か
らの発熱による天板および収納ケースの熱膨張によるそ
り等の変形が抑制され、天板の上面は平坦に保たれ、そ
して天板からは均等に発熱が行なわれる。その結果、被
加熱物を安定して加熱することができる優れた製品信頼
性を実現で者るものである。また天板と収納ケースの周
縁部はねじで一体に構成されているために、製造分解時
の作業性が良く、かつ固定状態が安定しているものであ
る。Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
The peripheral edges of the top plate and the storage case are fixed together by rotating and tightening the corresponding screws, and the top plate, insulation board, and center of the storage case are fixed together by the fixing member. Because it is sandwiched between the heating wires, deformation such as warping due to thermal expansion of the top plate and storage case due to heat generated from the heating wires is suppressed, the top surface of the top plate is kept flat, and heat is evenly distributed from the top plate. It is done. As a result, it is possible to achieve excellent product reliability by stably heating the object to be heated. Further, since the top plate and the peripheral edge of the storage case are integrally formed with screws, workability during manufacture and disassembly is good, and the fixed state is stable.
第１図は本発明の一実施例における電熱ユニットを分解
して示した斜視図、第２図は同縦断面図、第３図は従来
の電熱ユニットの縦断面図である。
６・・・・・・天板、７・・・・・・断熱基板、８・・
・・・・電熱線。
９・・・・・・収納ケース、１０・・・・・・めねじ、
１１・・・・・おねじ、１２，１３．１４・・・・・・
孔、１６ ・・・固定リング。
゛代理人の氏名 弁理士 中 尾 敏 男 ほか１名第
１１１ｆｆｌ ｇ＝−天板７−ｍ慕
基板
δ−電！Ｕ泉
９− 収諮り−ス
第２図FIG. 1 is an exploded perspective view of an electric heating unit according to an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the same, and FIG. 3 is a vertical cross-sectional view of a conventional electric heating unit. 6... Top plate, 7... Heat insulation board, 8...
...Heating wire. 9...Storage case, 10...Female thread,
11... Male thread, 12, 13.14...
Hole, 16...Fixing ring.゛Name of agent Patent attorney Toshio Nakao and 1 other person No. 111ffl g=-top plate 7-m board δ-electric! U Izumi 9- Consultation Station Figure 2
Claims (1)
記天板を加熱する電熱線と、この電熱線を配設させる溝
を有する断熱基板と、この断熱基板を収納する有底円筒
状の収納ケースとを備え、前記天板と断熱基板と収納ケ
ースの中心部に孔を貫通させて設け、かつ前記天板の内
側面にねじを設けるとともに前記収納ケースの外側面に
前記天板のねじに対応するねじを設け、前記断熱基板を
収納させた収納ケースと天板をねじによって一体に固定
し、さらに前記孔に固定部材を嵌通させて一体に挾持さ
せたことを特徴とする電熱ユニット。A bottomed cylindrical top plate made of a metal plate, a spirally wound heating wire for heating the top plate, a heat insulating board having a groove in which the heating wire is disposed, and an enclosure for storing the heat insulating board. a storage case with a cylindrical bottom; a hole is provided through the top plate, a heat insulating board, and the center of the storage case; a screw is provided on the inner surface of the top plate; and a screw is provided on the outer surface of the storage case; The present invention is characterized in that screws corresponding to the screws on the top plate are provided, the storage case in which the heat insulating board is stored and the top plate are fixed together with the screws, and a fixing member is fitted into the hole to clamp them together. electric heating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291865A JPH0797514B2 (en) | 1986-12-08 | 1986-12-08 | Electric heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291865A JPH0797514B2 (en) | 1986-12-08 | 1986-12-08 | Electric heating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63146383A true JPS63146383A (en) | 1988-06-18 |
| JPH0797514B2 JPH0797514B2 (en) | 1995-10-18 |
Family
ID=17774429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61291865A Expired - Lifetime JPH0797514B2 (en) | 1986-12-08 | 1986-12-08 | Electric heating unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0797514B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4324237Y1 (en) * | 1964-09-22 | 1968-10-12 | ||
| JPS61271774A (en) * | 1985-05-27 | 1986-12-02 | 松下電器産業株式会社 | Heater unit |
-
1986
- 1986-12-08 JP JP61291865A patent/JPH0797514B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4324237Y1 (en) * | 1964-09-22 | 1968-10-12 | ||
| JPS61271774A (en) * | 1985-05-27 | 1986-12-02 | 松下電器産業株式会社 | Heater unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0797514B2 (en) | 1995-10-18 |
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