JPH0795469B2 - Electric heating unit - Google Patents
Electric heating unitInfo
- Publication number
- JPH0795469B2 JPH0795469B2 JP61291036A JP29103686A JPH0795469B2 JP H0795469 B2 JPH0795469 B2 JP H0795469B2 JP 61291036 A JP61291036 A JP 61291036A JP 29103686 A JP29103686 A JP 29103686A JP H0795469 B2 JPH0795469 B2 JP H0795469B2
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- storage case
- heat insulating
- insulating substrate
- electric heating
- 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 - Lifetime
Links
Landscapes
- Resistance Heating (AREA)
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。TECHNICAL FIELD The present invention relates to an electric heating unit mainly used for cooking in general households.
従来の技術 従来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、シリカまたはアルミナ繊維を
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、螺旋状に巻かれた電熱線４
を収納し、この電熱線４によって天板５を加熱してい
た。なお前記収納ケース１と天板５は、天板５の側面で
収納ケース１の外側面で挟持することで一体に構成して
いた。2. Description of the Related Art Conventionally, as shown in FIG. 3, an electric heating unit of this type has a bottomed cylindrical storage case 1 in which a heat insulating substrate 2 made of a heat insulating material containing silica or alumina fiber as a main component is stored. The heating wire 4 spirally wound in the groove 3 provided in the substrate 2.
And the heating plate 4 was used to heat the top plate 5. The storage case 1 and the top plate 5 are integrally formed by being sandwiched between the side surfaces of the top plate 5 and the outer 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５
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びが遅れ
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。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above conventional configuration, when the amount of heat generated from the heating wire 4 becomes large, the storage case 1 and the top plate 5 are
The inner surface facing or abutting against the heat insulating substrate 2 has a high temperature, and the inner surface extends, while the outer surface delays the expansion, which causes warpage, which causes a change in the distance to the object to be heated. As a result, uneven temperature was generated on the top plate, which was 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
発熱量が大きくなっても、天板および収納ケースにそり
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 is to solve the above-mentioned conventional problems, and to provide an electric heating unit with high product reliability, which does not warp the top plate and the storage case even when the heating value of the heating wire increases. It is intended.
問題点を解決するための手段 上記目的を達成するため、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、螺旋状に巻かれ前記天
板を加熱する電熱線と、この電熱線を配設する溝を有す
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
心部にそれぞれ孔を設け、これらの孔に固定部材を嵌通
させて前記天板と断熱基板と収納ケースを一体に固定す
るとともに、前記天板と収納ケースは、天板の内側面に
設けた複数個の係止爪または被係止部と前記収納ケース
の外側面に設けた前記天板の係止爪または被係止部に対
応する複数個の被係止部または係止爪とを係合すること
によって一体に構成したものである。Means for Solving the Problems In order to achieve the above object, the electric heating unit of the present invention has a bottomed cylindrical top plate made of a metal plate, and a heating wire that is spirally wound to heat the top plate, A heat insulating substrate having a groove for arranging the heating wire and a bottomed cylindrical storage case for storing the heat insulating substrate are provided, and holes are provided at the center of the top plate, the heat insulating substrate and the storage case, respectively. The top plate, the heat insulating substrate and the storage case are integrally fixed by inserting a fixing member into the hole of the top plate and the top plate and the storage case. The locking part and a plurality of locked parts or locking claws corresponding to the locking claws or locked parts of the top plate provided on the outer surface of the storage case are integrally formed. It is a thing.
作 用 上記構成によれば、電熱ユニットの中心部は固定部材に
よって一体に固定され、かつ周縁部は係止爪と被係止部
を係合させることによって一体に固定されるために、熱
膨張による天板および収納ケースの変形は抑制されるも
のである。Operation According to the above configuration, the center portion of the electric heating unit is integrally fixed by the fixing member, and the peripheral edge portion is integrally fixed by engaging the locking claw and the locked portion. The top plate and the storage case are prevented from being deformed due to.
実施例 以下、本発明の具体的な実施例を第１図〜第２図にもと
づいて説明する。Example Hereinafter, a specific example of the present invention will be described with reference to FIGS.
図において、６は圧延鋼板（SPCC）からなる有底円筒状
の天板で、この天板６の被加熱物側には放射特性に優れ
た遠赤外線物質よりなる放射層が、また反対側には、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。この天板６の下方に配設された断熱基板７
はシリカまたはアルミナ繊維を主成分とする耐熱温度12
00℃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を配設する溝7aが設け
られている。前記断熱基板７は圧延鋼板（SPCC）よりな
る収納ケース９に収納されている。この収納ケース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。In the figure, 6 is a bottomed cylindrical top plate made of rolled steel plate (SPCC). On the side of the object to be heated of this top plate 6, a radiation layer made of far-infrared material having excellent radiation characteristics is provided, and on the opposite side. Has an insulating layer made of a heat-resistant holo substance containing a ceramic fiber having excellent heat resistance and thermal shock resistance. A heat insulating substrate 7 arranged below the top plate 6.
Is a heat-resistant temperature 12 whose main component is silica or alumina fiber.
The heat insulating material of 00 ° C. or higher is vacuum-formed, and the heat insulating substrate 7 is provided with a groove 7a in which a spirally wound heating wire 8 is arranged. The heat insulating substrate 7 is housed in a housing case 9 made of rolled steel plate (SPCC). The storage case 9 has an outer diameter smaller than the inner diameter of the top plate 6 and is located inside the top plate 6.
前記収納ケース９の外側面には複数個の係止爪10a,10b,
10c,10dが設けられ、かつ前記天板６の側面にこの係止
爪10a,10b,10c,10dにそれぞれ対応する被係止部11a,11
b,11c,11dが設けられている。そして前記天板6,断熱基
板７および収納ケース９の中心部には、それぞれ孔12,1
3,14が設けられている。これらの孔12,13,14の径は、断
熱基板７に設けられた孔13の径が最も径大であり、天板
６の収納ケース９に設けられた孔12,14が同径に構成さ
れ、前記断熱基板７の孔13において天板６に設けたフラ
ンジ6aと収納ケース９に設けたフランジ9aが当接されて
いる。そして前記断熱基板７を収納した収納ケース９
に、係止爪10a〜10dと被係止部11a〜11dをそれぞれ係合
させて天板６を装着させて、かつ前記孔12,13,14に固定
リング15を嵌通させて、その両端部をハトメと同様にし
てかしめて、前記天板６、断熱基板７および収納ケース
９を一体に構成する。16は前記電熱線８に電気的に接続
された電源端子、17は絶縁碍子である。A plurality of locking claws 10a, 10b, is formed on the outer surface of the storage case 9.
10c, 10d are provided, and the engaged parts 11a, 11 corresponding to the engaging claws 10a, 10b, 10c, 10d are provided on the side surface of the top plate 6, respectively.
b, 11c, 11d are provided. Then, holes 12, 1 are formed in the central portions of the top plate 6, the heat insulating substrate 7 and the storage case 9, respectively.
3,14 are provided. The diameter of these holes 12, 13, 14 is the largest diameter of the hole 13 provided in the heat insulating substrate 7, and the holes 12, 14 provided in the storage case 9 of the top plate 6 have the same diameter. Then, in the hole 13 of the heat insulating substrate 7, the flange 6a provided on the top plate 6 and the flange 9a provided on the storage case 9 are in contact with each other. And a storage case 9 in which the heat insulating substrate 7 is stored
, The engaging claws 10a to 10d and the engaged parts 11a to 11d are engaged with each other to mount the top plate 6, and the fixing rings 15 are fitted into the holes 12, 13, 14 and both ends thereof. The top plate 6, the heat insulating substrate 7 and the storage case 9 are integrally formed by caulking the portion in the same manner as the eyelet. Reference numeral 16 is a power supply terminal electrically connected to the heating wire 8, and 17 is an insulator.
上記実施例によれば、電熱ユニットの周縁部が、係止爪
10a〜10dと被係止部11a〜11dを係合することによって一
体に固定され、そして中心部が天板６、断熱基板７およ
び収納ケース９にそれぞれ設けた孔12,13,14に固定リン
グ15を嵌通させて、この固定リング15の両端部をかしめ
ることによって固定されるために、熱膨張により天板６
と収納ケース９の変形が抑制され、その結果天板６上の
温度むらを発生することのない製品信頼性の高いものを
実現できる。According to the above-described embodiment, the peripheral portion of the electric heating unit has the locking claws.
It is fixed integrally by engaging the locked portions 11a to 11d with 10a to 10d, and the fixing ring is fixed to the holes 12, 13, 14 provided in the top plate 6, the heat insulating substrate 7 and the storage case 9 at the center. Since the fixing ring 15 is fixed by inserting 15 and crimping both ends of the fixing ring 15, the top plate 6 is caused by thermal expansion.
As a result, deformation of the storage case 9 is suppressed, and as a result, a product with high product reliability that does not cause temperature unevenness on the top plate 6 can be realized.
なお本実施例においては、収納ケース９に係止爪10a〜1
0dを設け、天板６に被係止部11a〜11dを設けた構成につ
いて説明したが、収納ケース９に被係止部を設け、天板
６に係止爪を設けた構成とした場合にも同様の作用効果
を奏することができる。また固定部材として固定リング
15を用いたがリベットを用いても良い。In this embodiment, the storage case 9 is provided with locking claws 10a-1a.
The configuration in which 0d is provided and the engaged portions 11a to 11d are provided in the top plate 6 has been described, but in the case where the engaged portion is provided in the storage case 9 and the engaging claws are provided in the top plate 6, Also has the same effect. Also, as a fixing member, a fixing ring
Although 15 is used, rivets may 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、
天板の側面に複数個の係止爪または被係止部を設け、そ
してこの係止爪または被係止部に対応する被係止部また
は係止爪を収納ケースの外側面に設けることによって、
電熱ユニットの周縁部を一体に固定し、そして、天板と
断熱基板と収納ケースの中心部にそれぞれ孔を設け、こ
れらの孔に固定部材を嵌通させて、そしてこの固定部材
で一体に固定しているために、電熱線の発熱による熱膨
張にともなう天板および収納ケースの変形が抑制され、
そして天板の上面を平坦に保つことができる。その結
果、天板からの発熱量を均一化し、調理物への安定した
加熱が実現でき、製品信頼性を高めることが可能とな
る。Effects of the Invention According to the present invention, as is clear from the description of the above embodiments,
By providing a plurality of locking claws or locked parts on the side surface of the top plate, and by providing the locked parts or locking claws corresponding to the locking claws or the locked parts on the outer surface of the storage case. ,
The peripheral portion of the electric heating unit is integrally fixed, and holes are provided in the central portion of the top plate, the heat insulating substrate, and the storage case, and the fixing members are fitted into these holes, and then fixed integrally with this fixing member. Therefore, the deformation of the top plate and the storage case due to the thermal expansion due to the heat generation of the heating wire is suppressed,
And the top surface of the top plate can be kept flat. As a result, the amount of heat generated from the top plate can be made uniform, stable cooking of food can be realized, and product reliability can be improved.
第１図は本発明の一実施例において電熱ユニットを分解
して示した斜視図、第２図は同電熱ユニットの縦断面
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,10a,10b,10c,10d……係止爪,11a,11b,11c,11d……被
係止部,12,13,14……孔,15……固定リング。1 is an exploded perspective view of an electric heating unit according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of the same electric heating unit, and FIG. 3 is a vertical sectional view of a conventional electric heating unit. 6 ... Top plate, 7 ... Insulation board, 8 ... Heating wire, 9 ... Storage case, 10a, 10b, 10c, 10d ... Locking claw, 11a, 11b, 11c, 11d ... Locked part , 12,13,14 …… hole, 15 …… fixing ring.
Claims (1)
に巻かれ前記天板を加熱する電熱線と、この電熱線を配
設す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それぞれ孔を設け、これらの孔に
固定部材を嵌通させて前記天板と断熱基板と収納ケース
を一体に固定するとともに、前記天板と収納ケースは、
天板の内側面に設けた複数個の係止爪または被係止部と
前記収納ケースの外側面に設けた前記天板の係止爪また
は被係止部に対応する複数個の被係止部または係止爪と
を係合することによって一体に構成した電熱ユニット。1. A bottomed tubular top plate made of a metal plate, a heating wire spirally wound to heat the top plate, a heat insulating substrate having a groove for arranging the heating wire, and this heat insulating substrate. And a bottomed cylindrical storage case for storing the top plate, the heat insulating substrate, and holes provided at the center of the storage case, respectively, and fixing members are inserted into these holes to form the top plate and the heat insulating substrate. While fixing the storage case integrally, the top plate and the storage case,
A plurality of locking claws or locked parts provided on the inner surface of the top plate and a plurality of locked parts corresponding to the locking claws or locked parts of the top plate provided on the outer surface of the storage case. An electric heating unit integrally configured by engaging a portion or a locking claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291036A JPH0795469B2 (en) | 1986-12-05 | 1986-12-05 | Electric heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61291036A JPH0795469B2 (en) | 1986-12-05 | 1986-12-05 | Electric heating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63143780A JPS63143780A (en) | 1988-06-16 |
| JPH0795469B2 true JPH0795469B2 (en) | 1995-10-11 |
Family
ID=17763611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61291036A Expired - Lifetime JPH0795469B2 (en) | 1986-12-05 | 1986-12-05 | Electric heating unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0795469B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3956511B2 (en) * | 1998-03-18 | 2007-08-08 | 株式会社デンソー | Fuel pump |
Family Cites Families (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
- 1986-12-05 JP JP61291036A patent/JPH0795469B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63143780A (en) | 1988-06-16 |
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