JPS6343748Y2 - - Google Patents
Info
- Publication number
- JPS6343748Y2 JPS6343748Y2 JP17926082U JP17926082U JPS6343748Y2 JP S6343748 Y2 JPS6343748 Y2 JP S6343748Y2 JP 17926082 U JP17926082 U JP 17926082U JP 17926082 U JP17926082 U JP 17926082U JP S6343748 Y2 JPS6343748 Y2 JP S6343748Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheathed heater
- switch
- spring
- sheathed
- drive shaft
- 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
- 238000013021 overheating Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
本考案はシーズヒーターの異状過熱を防止する
構造を成したシーズヒーターの電気接続用端子ボ
ツクスに関する。シーズヒーターは、それ自体が
単体で発熱する部品である。従つて、部品である
シーズヒーターを安全に使用するために、電源ス
イツチ、温度ヒユーズ、過電流遮断ヒユーズ、サ
ーモスタツトや熱電対等温度制御装置、等を組み
合わせて用いられるのが通例である。特に簡易に
利用される湯沸し装置である投げ込み型のシーズ
ヒーターは、電源スイツチによつてその安全を管
理しているが、充分な管理ができないおそれがあ
るので、本考案は充分な管理、安全が得られるよ
うに改良したシーズヒーター端末ボツクス構造に
ついて提供する。次に本考案を一実施例の図面に
従つて詳細に説明をする。第１図は、本考案一実
施例の構成略図である。シーズヒーター端末ボツ
クス構造１は、シーズヒーター４の端末部４ａと
４ａとの間６に形状記憶スプリング５を摺動可能
に設けて、該スプリング５の内側に摺動可能に駆
動軸５ａを設けてある。その軸５ａには該スプリ
ング５の圧力を受ける部材５ｂを設け乍ら同時に
電流を遮断するスイツチ３の接片３ａに係接し且
つ該軸５の先端部５ｃの内側には前記スイツチ３
の接片３を圧つしているスプリング７を有して該
スプリング７は前記した記憶スプリング５が熱に
よつて源記憶へ戻る圧力よりも小さい圧力を有し
てある。該軸５の先端部５ｃには、引つ掛り構造
を有してあつてノブ装置８の引つ掛り部８ａに係
合している。ノブ装置８の先端８ｃは押し上げス
プリング８ｂによつて外殻体ボツクス１ａの軟質
部１ｂを押し上げて凸状を一時的に形成する。こ
の凸状を提した時は、シーズヒーター４の異状過
熱で形状記憶スプリング５が源形状に戻つて膨張
して駆動軸５ａが→方向に押されて圧力受け部材
５ｂに係接しているスイツチ３の接片３ａが開い
て電流は遮断されて、該軸５の先端部５ｃの引つ
掛りがノブ装置８の引つ掛り部８ａをはずしてノ
ブ装置８の押し上げスプリング８ｂがハネ上つて
ノブ先端８ｃは前記凸状を形成し、この状態の該
引つ掛り５ｃと８ａとのはずれは、スイツチ３の
開放を維持している。シーズヒーター４の冷却と
共に形状記憶スプリング５の該膨張圧力が小さく
なつた時、前記凸状であるノブ装置８の先端８ｃ
を‐‐‐→の方向へ下げ押すと前記引つ掛り部５ｃ
と８ａとが再び係合しロツクされて同時に駆動軸
５ａは‐‐‐→方向へ摺動して圧力受け部５ｂはス
イツチ３を導通させ且つ導通圧接用スプリング７
が接片３ａを圧して正常通電状態へ復帰する。す
なわちノブ装置８の先端８ｃを‐‐‐→方向へ押し
下げて電流導通は復帰される。２は従前の電源ス
イツチで２ｂは接続部である。矢印→方向は電流
遮断で、‐‐‐→は電流導通のための動き方向であ
る。第２図は、第１図の一実施例態様を示す断面
図である。シーズヒーター端末ボツクス構造１の
構成は前記した第１図説明によるが、ボツクス１
の材質は耐熱性合成樹脂でボツクス１ａを形成し
て電流遮断を意味した凸状を提させる部分１ｂの
材質はゴム又はゴム質合成樹脂にして凹凸状の形
成を楽にさせるようにしてある。更にこの凸状部
の材質１ｂは透明にしてノブ装置８の先端部８ｃ
内に極小のパイロツトランプ８ｄを内蔵させてそ
の色彩を赤にして凸状の時に点灯するようにして
おけば更に利用しやすくする。９は電源コードで
ある。以上のようにして本考案の一実施例によれ
ば、特に投げ込み型式の湯沸し用シーズヒーター
４にその端末ボツクス構造１のものを設けて、シ
ーズヒーター４の異状過熱による事故を未然に、
安全に防止することが可能となり、ボツクス１の
形状も小型に形成可能にして、安全度を充分に得
られた等の特徴を有している。[Detailed Description of the Invention] The present invention relates to a terminal box for electrical connection of a sheathed heater, which has a structure that prevents abnormal overheating of the sheathed heater. A sheathed heater is a component that generates heat by itself. Therefore, in order to use the sheathed heater component safely, it is customary to use a combination of temperature control devices such as a power switch, temperature fuse, overcurrent cutoff fuse, thermostat, thermocouple, etc. In particular, the safety of immersion-type sheathed heaters, which are easily used water heating devices, is controlled by a power switch, but there is a risk that the control may not be adequate. An improved sheathed heater terminal box structure is provided. Next, the present invention will be explained in detail with reference to the drawings of one embodiment. FIG. 1 is a schematic diagram of an embodiment of the present invention. The sheathed heater terminal box structure 1 includes a shape memory spring 5 slidably provided between the terminal parts 4a and 4a of the sheathed heater 4, and a drive shaft 5a slidably provided inside the spring 5. be. The shaft 5a is provided with a member 5b that receives the pressure of the spring 5, and at the same time engages with the contact piece 3a of the switch 3 that cuts off the current, and inside the tip 5c of the shaft 5 is the switch 3.
The spring 7 has a pressure lower than the pressure at which the memory spring 5 described above returns to its source memory due to heat. The tip portion 5c of the shaft 5 has a hooking structure and engages with a hooking portion 8a of the knob device 8. The tip 8c of the knob device 8 pushes up the soft portion 1b of the outer shell box 1a by the push-up spring 8b to temporarily form a convex shape. When this convex shape is achieved, the shape memory spring 5 returns to its original shape and expands due to abnormal overheating of the sheathed heater 4, and the drive shaft 5a is pushed in the → direction, causing the switch 3 to engage with the pressure receiving member 5b. The contact piece 3a opens and the current is cut off, and the hook of the tip 5c of the shaft 5 releases the hook 8a of the knob device 8, and the push-up spring 8b of the knob device 8 springs up to push the tip of the knob. 8c forms the convex shape, and the disconnection of the hooks 5c and 8a in this state keeps the switch 3 open. When the expansion pressure of the shape memory spring 5 decreases as the sheathed heater 4 cools down, the convex tip 8c of the knob device 8
When pushed down in the direction of ---→, the hooking portion 5c
and 8a are re-engaged and locked, and at the same time, the drive shaft 5a slides in the --→ direction, and the pressure receiving part 5b brings the switch 3 into conduction and the contact spring 7.
presses the contact piece 3a and returns to the normal energized state. That is, current conduction is restored by pushing down the tip 8c of the knob device 8 in the --→ direction. 2 is a conventional power switch, and 2b is a connection part. The arrow → direction is current interruption, and ---→ is the movement direction for current conduction. FIG. 2 is a sectional view showing an embodiment of FIG. 1. The configuration of the sheathed heater terminal box structure 1 is as explained in FIG.
The material of the box 1a is made of a heat-resistant synthetic resin and the part 1b is made of rubber or a rubber-like synthetic resin so as to facilitate the formation of an uneven shape. Furthermore, the material 1b of this convex portion is made transparent, and the tip portion 8c of the knob device 8 is made transparent.
If a very small pilot lamp 8d is built in and the color is red so that it lights up when the shape is convex, it will be easier to use. 9 is a power cord. As described above, according to one embodiment of the present invention, the terminal box structure 1 is provided in the sheathed heater 4 for boiling water, which is particularly an immersion type, to prevent accidents caused by abnormal overheating of the sheathed heater 4.
It is possible to safely prevent this, and the shape of the box 1 can also be made small, so that a sufficient degree of safety can be achieved.
第１図……本考案一実施例の構成略図。第２図
……第１図の一実施例態様を示す断面図。
１……シーズヒーター端末ボツクス構造、１，
１ａ……ボツクス、耐熱性合成樹脂製ボツクス、
１ｂ……軟質、ゴム、ゴム質部分、２……スイツ
チ装置、２ａ……導通部分、接続子、３……スイ
ツチ装置、３ａ……接片、４……シーズヒータ
ー、発熱部、４ａ……端末部、５……形状記憶ス
プリング、５ａ……駆動軸、５ｂ……圧力受け
部、５ｃ……先端部、引つ掛り部、６……端末部
４ａと４ａとの間、７……接片３ａ圧縮用スプリ
ング、８……ノブ装置、８ａ……ノブ引つ掛り
部、８ｂ……押し上げスプリング、８ｃ……ノブ
先端、‐‐‐→……導通、復帰、→……遮断、電流
OFF、９……電源コード。
FIG. 1: A schematic diagram of the configuration of an embodiment of the present invention. FIG. 2...A sectional view showing an embodiment of FIG. 1. 1 ... Sheathed heater terminal box structure, 1,
1a...Box, heat-resistant synthetic resin box,
1b... Soft, rubber, rubbery part, 2... Switch device, 2a... Conductive part, connector, 3... Switch device, 3a... Contact piece, 4... Sheathed heater, heat generating part, 4a... Terminal part, 5... Shape memory spring, 5a... Drive shaft, 5b... Pressure receiving part, 5c... Tip part, hook part, 6... Between terminal parts 4a and 4a, 7... Connection Piece 3a compression spring, 8...knob device, 8a...knob hooking part, 8b...pushing spring, 8c...knob tip, ---→...continuity, return, →...cutoff, current
OFF, 9...Power cord.
Claims (1)
チ無しの電気接続ボツクスを有したものに於て、
該シーズヒーターの両端末の間に形状記憶スプリ
ングを摺動可能に設け、該スプリング内に圧力受
け部材を有した駆動軸を設け、該駆動軸に電流を
遮断するスイツチと該スイツチの遮断状態を保持
又は復帰させるノブ装置と係設し設け、該シーズ
ヒーターの過熱防止を可能にしたことを特徴とし
たシーズヒーター端末ボツクス構造。 For sheathed heaters that have an electrical connection box with or without a switch at the terminal,
A shape memory spring is slidably provided between both ends of the sheathed heater, a drive shaft having a pressure receiving member is provided within the spring, and a switch for cutting off the current is provided on the drive shaft, and a cutoff state of the switch is set. A sheathed heater terminal box structure, characterized in that it is connected to a knob device for holding or returning the sheathed heater, thereby making it possible to prevent the sheathed heater from overheating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17926082U JPS5982983U (en) | 1982-11-26 | 1982-11-26 | Sealed heater terminal box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17926082U JPS5982983U (en) | 1982-11-26 | 1982-11-26 | Sealed heater terminal box structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5982983U JPS5982983U (en) | 1984-06-05 |
| JPS6343748Y2 true JPS6343748Y2 (en) | 1988-11-15 |
Family
ID=30388983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17926082U Granted JPS5982983U (en) | 1982-11-26 | 1982-11-26 | Sealed heater terminal box structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5982983U (en) |
-
1982
- 1982-11-26 JP JP17926082U patent/JPS5982983U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5982983U (en) | 1984-06-05 |
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