JPS6321115Y2 - - Google Patents
Info
- Publication number
- JPS6321115Y2 JPS6321115Y2 JP1981030081U JP3008181U JPS6321115Y2 JP S6321115 Y2 JPS6321115 Y2 JP S6321115Y2 JP 1981030081 U JP1981030081 U JP 1981030081U JP 3008181 U JP3008181 U JP 3008181U JP S6321115 Y2 JPS6321115 Y2 JP S6321115Y2
- Authority
- JP
- Japan
- Prior art keywords
- mica plate
- mica
- heater
- heating
- heating wire
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 40
- 239000010445 mica Substances 0.000 claims description 36
- 229910052618 mica group Inorganic materials 0.000 claims description 36
- 238000004804 winding Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
Landscapes
- Surface Heating Bodies (AREA)
Description
【考案の詳細な説明】
この考案は、電熱湯沸器などに取付ける加熱用
ヒータに関するものである。[Detailed Description of the Invention] This invention relates to a heater that is attached to an electric water heater or the like.
電熱湯沸器は、容器の底部に加熱ヒータを内蔵
している。このような湯沸器の加熱ヒータの発熱
時に、容器内が空であると、加熱ヒータ自体及び
容器が異常に温度上昇するので火災を起す危惧が
ある。 Electric water heaters have a built-in heater at the bottom of the container. If the inside of the container is empty when the heater of such a water boiler generates heat, the temperature of the heater itself and the container will rise abnormally, which may cause a fire.
この考案は上記の問題を解決し、例えば空焚時
において発熱機能を失わせることを目的とするも
のである。 The purpose of this invention is to solve the above-mentioned problems, for example, to eliminate the heat generating function during dry firing.
この考案は、発熱体の発熱線の一部を交差させ
て加熱時の異常な温度上昇により発熱線の上記交
差部分においてこの発熱線を溶損させるようにす
るものである。 This idea is to make a part of the heating wires of the heating element intersect so that the abnormal temperature rise during heating causes the heating wires to melt at the intersection.
以下、この考案の実施例を添付図面に基づいて
説明する。 Hereinafter, embodiments of this invention will be described based on the accompanying drawings.
第1図乃至第3図に示すように、この考案に係
る加熱用ヒータは、金属性の密閉ケース1と、こ
のケース1内に収納された円形の発熱体10との
組み合わせから成り、前記発熱体10の両面には
絶縁板20が重ね合わされ、さらにその外側にス
テンレス板30が重ねられている。 As shown in FIGS. 1 to 3, the heater according to this invention is composed of a metal sealed case 1 and a circular heating element 10 housed in the case 1. Insulating plates 20 are stacked on both sides of the body 10, and a stainless steel plate 30 is further stacked on the outside thereof.
上記発熱体10は、一対の半円形マイカ板1
1,11を備え、各マイカ板11の外周に多数の
切欠き12が形成されている。 The heating element 10 includes a pair of semicircular mica plates 1
1 and 11, and a large number of notches 12 are formed on the outer periphery of each mica plate 11.
一対のマイカ板11,11は円板状に配置さ
れ、一方のマイカ板11の外側に巻付けた発熱線
13を他方のマイカ板11の外周に巻付けて円板
状態に保持される。発熱線13としてニクロム線
を採用することができ、この発熱線13はマイカ
板11の外周の切欠き12を通るようにして各マ
イカ板11の外側に巻回される。 A pair of mica plates 11, 11 are arranged in a disk shape, and the heating wire 13 wound around the outside of one mica plate 11 is wound around the outer periphery of the other mica plate 11 to be held in a disk shape. A nichrome wire can be used as the heating wire 13, and the heating wire 13 is wound around the outside of each mica plate 11 so as to pass through the notch 12 on the outer periphery of the mica plate 11.
発熱体10の一方の面には、一対の帯状マイカ
板14,14′が重ね合わされ、この帯状マイカ
板14,14′は互いに交差している。また、各
帯状マイカ板14,14′の長さ方向は、各マイ
カ板11に巻付けた発熱体13に対して交差して
いる。 A pair of band-shaped mica plates 14, 14' are superimposed on one surface of the heating element 10, and the band-shaped mica plates 14, 14' intersect with each other. Further, the length direction of each of the strip-shaped mica plates 14, 14' intersects the heating element 13 wound around each mica plate 11.
帯状マイカ板14,14′の両端部には挿入孔
15が形成され、前記発熱線13の巻始め端部1
3′は下側帯状マイカ板14の下側から挿入孔1
5に挿入されて下側帯状マイカ板14の表面長手
方向に沿つて引き出され、その端は他方の挿入孔
15からマイカ板11の中央部に形成した複数の
孔16のそれぞれに順次挿入されて上記マイカ板
11の下方に引き出される。 The belt-shaped mica plates 14, 14' have insertion holes 15 at both ends thereof, and the winding start end 1 of the heating wire 13 is inserted into the insertion holes 15.
3' is inserted through the lower portion of the lower belt-shaped mica plate 14 into the insertion hole 1
5 and is pulled out along the longitudinal direction of the surface of the lower belt-shaped mica plate 14, and its ends are successively inserted through the other insertion hole 15 into each of a plurality of holes 16 formed in the center of the mica plate 11 and pulled out below the mica plate 11.
また、発熱線13の巻終わり端部13″は上側
帯状マイカ板14′の端部の挿入孔15に挿入さ
れて上側帯状マイカ板14′の表面長手方向に沿
つて引き出され、その端は他方の挿入孔15から
マイカ板11の中央部に形成した複数の孔16に
挿入されて上記マイカ板11の下方に引き出され
る。 The winding end 13'' of the heating wire 13 is inserted into the insertion hole 15 at the end of the upper band-shaped mica plate 14' and pulled out along the longitudinal direction of the surface of the upper band-shaped mica plate 14'. They are inserted into a plurality of holes 16 formed in the center of the mica plate 11 through the insertion holes 15 and pulled out below the mica plate 11.
各マイカ板11,11の中央部に形成した孔1
6及び帯状マイカ板14,14′の端部の挿入孔
15には、一対の補強発熱線17が挿入され、こ
の各補強発熱線17は前記の発熱線13の端部に
沿わせられ、その三本を一まとめとして撚り合わ
されている。この撚り線はリード線18となり、
各リード線18は発熱体10の下方の絶縁板20
及びステンレス板30の中央部の孔31に挿入さ
れ、さらにケース1の底板中央部に固定したねじ
筒2の内側に挿入されて外方に引き出され、その
外側に筒状碍子19が嵌め合わされている。 Hole 1 formed in the center of each mica plate 11, 11
A pair of reinforcing heating wires 17 are inserted into the insertion holes 15 at the ends of the mica plates 14 and 14', and each reinforcing heating wire 17 is placed along the end of the heating wire 13. Three strands are twisted together. This twisted wire becomes the lead wire 18,
Each lead wire 18 is connected to an insulating plate 20 below the heating element 10.
and is inserted into the hole 31 in the center of the stainless steel plate 30, further inserted into the inside of the screw cylinder 2 fixed to the center part of the bottom plate of the case 1, and pulled out to the outside, and the cylindrical insulator 19 is fitted on the outside thereof. There is.
実施例で示す加熱用ヒータは上記の構造から成
り、この加熱用ヒータは、例えば湯沸器などに採
用することができる。 The heater shown in the embodiment has the above-described structure, and this heater can be used in, for example, a water heater.
いま、例えば、湯沸器にこの考案の加熱用ヒー
タを採用した状態において、リード線18に通電
すると発熱体10が発熱し、これによつて容器内
に入れた水などを加熱することができる。ところ
で、容器内が空の状態であると、加熱用ヒータ自
体が高温になり、しかも下側帯状マイカ板14に
沿つて延びる発熱線13の一部は上下より加熱さ
れるため、この部分は他の部分に比較して溶断し
易く、空焚状態が長く続いた場合に溶断し、この
発熱線13の断線によつて通電不能になり、加熱
ヒータとして機能を喪失する。 Now, for example, when the heater of this invention is used in a water heater, when the lead wire 18 is energized, the heating element 10 generates heat, which can heat the water placed in the container. . By the way, when the inside of the container is empty, the heater itself becomes high temperature, and a part of the heating wire 13 extending along the lower band-shaped mica plate 14 is heated from above and below, so this part is heated by other parts. The heating wire 13 is more likely to melt down than the other parts, and will melt if left unheated for a long time, and when the heating wire 13 is broken, it becomes impossible to conduct electricity and loses its function as a heater.
因みに、この考案に係る加熱用ヒータを湯沸器
に取付けて空焚試験をしたところ、第4図に示す
ように、下側帯状マイカ板14の表面に沿つて延
びる発熱線13の一部が下側帯状マイカ板と共に
溶断した。 Incidentally, when the heater according to this invention was attached to a water heater and a dry firing test was carried out, as shown in FIG. It was fused together with the lower band-shaped mica plate.
以上のように、この考案によれば、発熱線の巻
始め端部および巻終わり端部をマイカ板に巻付け
た発熱線に対して交差させたので、発熱体の異常
加熱により、発熱線を溶断させることができる。
このため、空焚き等において、発熱体の機能を失
わせることができ、火災の発生を未然に防止する
ことができる。 As described above, according to this invention, since the winding start end and winding end of the heating wire are crossed with the heating wire wrapped around the mica plate, abnormal heating of the heating element may cause the heating wire to Can be fused.
For this reason, the function of the heating element can be lost during dry heating, etc., and the occurrence of a fire can be prevented.
また、マイカ板に巻付けた発熱線、巻始め端部
および巻終わり端部を互いに交差させたので、異
常加熱時には、3本の互いに交差する発熱線のう
ち、中央の発熱線は上下から加熱されることにな
る。 In addition, since the heating wires wound around the mica plate are crossed at the beginning and end of the winding, in the event of abnormal heating, the central heating wire will be heated from above and below among the three heating wires that cross each other. will be done.
このため、異常加熱時に、発熱線をきわめて短
時間に、かつ確実に溶断させることができ、きわ
めて安全である。 Therefore, in the event of abnormal heating, the heating wire can be melted down in a very short time and reliably, making it extremely safe.
そのほか、一対のマイカ板が対称形であるた
め、製作が容易であり、コストの安いヒータを得
ることができる。 In addition, since the pair of mica plates are symmetrical, manufacturing is easy and a heater can be obtained at low cost.
第1図は、この考案に係る加熱用ヒータの横断
平面図、第2図は第1図の−線に沿つた断面
図、第3図は同上の発熱体の斜視図、第4図は同
上の発熱線の断線状態を示す横断平面図である。
1……ケース、10……発熱体、11……マイ
カ板、13……発熱線、14,14′……帯状マ
イカ板。
Fig. 1 is a cross-sectional plan view of the heater according to the invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a perspective view of the heating element as above, and Fig. 4 is as above. FIG. 3 is a cross-sectional plan view showing a disconnected state of the heating wire. 1... Case, 10... Heating element, 11... Mica plate, 13... Heating wire, 14, 14'... Band-shaped mica plate.
Claims (1)
付けた加熱用ヒータにおいて、上記マイカ板を対
称形の半円形マイカ板で形成し、一方半円形マイ
カ板に巻付けた発熱線の巻始め端部および他方半
円形マイカ板に巻付けた発熱線の巻終わり端部
を、マイカ板に巻付けた発熱線に交差させると共
に、その巻始め端部と巻終わり端部を互いに交差
させ、上記巻始め端部および巻終わり端部の下側
に帯状マイカ板を設けたことを特徴とする加熱用
ヒータ。 In a heater in which a heat generating wire is wound around the outside of a circular mica plate divided into two parts, the mica plate is formed of a symmetrical semicircular mica plate, and the winding start of the heat generating wire wound around the semicircular mica plate is The winding end of the heating wire wound on the other semicircular mica plate is crossed with the heating wire wound on the mica board, and the winding start end and winding end are crossed with each other, and the above-mentioned A heater characterized in that a band-shaped mica plate is provided below the winding start end and the winding end end.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981030081U JPS6321115Y2 (en) | 1981-03-02 | 1981-03-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981030081U JPS6321115Y2 (en) | 1981-03-02 | 1981-03-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57143598U JPS57143598U (en) | 1982-09-09 |
JPS6321115Y2 true JPS6321115Y2 (en) | 1988-06-10 |
Family
ID=29827616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981030081U Expired JPS6321115Y2 (en) | 1981-03-02 | 1981-03-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6321115Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023026787A1 (en) * | 2021-08-27 | 2023-03-02 | パナソニックIpマネジメント株式会社 | Heating cooker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6150518A (en) * | 1985-05-20 | 1986-03-12 | 松下電器産業株式会社 | Electric heater |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442277U (en) * | 1977-08-30 | 1979-03-22 |
-
1981
- 1981-03-02 JP JP1981030081U patent/JPS6321115Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5442277U (en) * | 1977-08-30 | 1979-03-22 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023026787A1 (en) * | 2021-08-27 | 2023-03-02 | パナソニックIpマネジメント株式会社 | Heating cooker |
Also Published As
Publication number | Publication date |
---|---|
JPS57143598U (en) | 1982-09-09 |
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