JPS6196628A - Thermal protector - Google Patents
Thermal protectorInfo
- Publication number
- JPS6196628A JPS6196628A JP21970384A JP21970384A JPS6196628A JP S6196628 A JPS6196628 A JP S6196628A JP 21970384 A JP21970384 A JP 21970384A JP 21970384 A JP21970384 A JP 21970384A JP S6196628 A JPS6196628 A JP S6196628A
- Authority
- JP
- Japan
- Prior art keywords
- thermally responsive
- responsive element
- thermal protector
- electrode lead
- movable electrode
- 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.)
- Pending
Links
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】 産業上の利用分封 本発明はサーマルプロテクタに関するものである。[Detailed description of the invention] Industrial use packaging The present invention relates to a thermal protector.
従来例の構成とその間粗点
従来、サーマルプロテクタの一例として、第２図ａに示
すような構造のものが知らｎている。すなわち、固定゛
祇億リード、嵌１の先端部に接点２を設け、その対向位
置に接点３を設けたスナップアクションを有する熱応動
索子４からなる町動亀唖を、可動電儂リード線６の先４
ｉ部に（容接により一部り続し、ガラスビード６にて雨
雪ｉ央リード−′、Ｊｃを支持固定してマウントヲ構成
し、このマウ／トヲ硝子管７内に組込み、その内部に窒
素と１狡素との混合ガスを封入したものである。2. Structure of conventional example and its shortcomings Conventionally, as an example of a thermal protector, one having a structure as shown in FIG. 2a is known. That is, a fixed lead wire, a thermally responsive cable 4 having a snap action with a contact point 2 provided at the tip of the fitting 1 and a contact point 3 provided at the opposite position are used as a movable electrical lead wire. 4 beyond 6
A mount is formed by supporting and fixing the leads 1 and 2 with the glass bead 6, and this mouth/toe is assembled into the glass tube 7 and placed inside it. It is filled with a mixed gas of nitrogen and nitrogen.
このような構造のサーマルプロテクタは、熱伝導あるい
は電流による自己発熱によって、熱応動素子４のあらか
じめ設定された１５篭変域において、その反転・復帰動
作により、接点２，３間の開１オｊ動作を行う。The thermal protector having such a structure is capable of reducing the opening between the contacts 2 and 3 by reversing and restoring the thermally responsive element 4 in a preset 15-cycle range due to heat conduction or self-heating caused by current. perform an action.
しかし、このような構造においては、熱応動素子４と可
動電憾リード線６との溶接接続は、面と線との溶接関係
となる。この場合、通虜黙応動素子４の大きさは約５ｍ
ｍｘ１０ｍｍと小さく、かつ厚さは０．１ｍｍとうすく
、一方町劾篭惟す−ド、譚６の直径は約０．５ｎｒｍ〜
１個と非常に細い。そして、その両者の溶接は、熱応動
素子４上に可動電極リード−５をこの先端部から約１．
５ｍだけ謔いた状、惇で両者の溶ｍＪ〆続が行わｎる。However, in such a structure, the welding connection between the thermally responsive element 4 and the movable electrical lead wire 6 is a surface-to-wire welding relationship. In this case, the size of the prisoner silent response element 4 is approximately 5 m.
It is small at mx10mm and has a thickness of 0.1mm, while the diameter of Machikaikagoresudo and Tan 6 is about 0.5nrm~
One piece and very thin. The welding of both is performed by attaching the movable electrode lead 5 on the thermally responsive element 4 from the tip of the movable electrode lead 5 about 1.
After singing for only 5m, the two of them ended their marriage.
以上のこと力・ら、町ｆｍ電憧す−ド虐５は熱応動素子
４上に置かれた先端部全体がこれに溶接さｎることにな
る（溶接部Ｐｆｒを第２図すの斜線部分で示す。）。こ
のため、熱応動素子４が可動電極リード様５の先端部に
線溶接（第２図Ｃ番号８）さｎることとなり、熱応動素
子４がスナップアクション動作を伺回も繰返すようちに
繰返し応力により、熱応動素子４の開閉動作の支点Ａの
近傍に亀裂が発生し、耐久性に問題があった。As described above, the entire tip of the town fm electric model 5 placed on the heat-responsive element 4 will be welded to this (the welded part Pfr is indicated by the diagonal lines in Figure 2). ). Therefore, the thermally responsive element 4 is line welded (No. 8 in C in Figure 2) to the tip of the movable electrode lead 5, and the thermally responsive element 4 repeats the snap action action repeatedly. Due to the stress, cracks were generated in the vicinity of the fulcrum A of the opening/closing operation of the thermally responsive element 4, posing a problem in durability.
発明の目的
本発明はこのような問題を解決し、開閉動作の耐久性の
向上を図ったサーマルプロテクタを提供するものである
。OBJECTS OF THE INVENTION The present invention solves these problems and provides a thermal protector that improves the durability of opening and closing operations.
発明の構成
本発明ノサーマルプロテクタは、硝子管内に、固定電極
リード−を有する固定電極とこの固定電憾と対向してス
ナップアクションを有する熱応動素子からなる可動電極
とを設け、前記熱応動素子の端部に、先端部が平担にな
った可動祇憾リード、陳の前記平担部の一部を接続した
ことを特徴とするものである。Structure of the Invention The thermal protector of the present invention is provided with a fixed electrode having a fixed electrode lead in a glass tube, and a movable electrode consisting of a thermally responsive element having a snap action opposite to the fixed electrode. This is characterized in that a part of the flat part of the movable lead with a flat tip is connected to the end of the movable lead.
実症例の説明
以下、本発明の一実柿例について図面を用いて説明する
。Description of an Actual Case Hereinafter, an example of a persimmon according to the present invention will be explained using the drawings.
第１図ａにおいて、本発明実症例のサーマルプロテクタ
は、先端部に接点２を有する固定電極リード線１かもな
る固定電極と、先端部に接点３を有する熱応動素子４か
らなる可動電極と１、この可動電極の端部に溶接された
可動電・匣す−ド稼９と、固定電極リード顧１および可
動電極リード巌９を互いに溶着しているガラスビード６
とからマウントが構成されている。In FIG. 1a, a thermal protector according to an actual case of the present invention includes a fixed electrode which is also a fixed electrode lead wire 1 having a contact 2 at its tip, a movable electrode consisting of a thermally responsive element 4 having a contact 3 at its tip, and 1. , a movable electric conductor 9 welded to the end of the movable electrode, and a glass bead 6 welding the fixed electrode lead 1 and the movable electrode lead 9 to each other.
The mount is configured from.
可動電極リード巌９の先端部は第１図すに示すようにプ
レス加工により平担になっており、この平担部１ｏが熱
応動素子４の端部に溶接されている。溶接点を第１図Ｃ
に番号１１で示す。The tip of the movable electrode lead 9 is flattened by pressing, as shown in FIG. 1, and this flattened portion 1o is welded to the end of the thermally responsive element 4. The welding point is shown in Figure 1C.
It is indicated by number 11.
上記マウントは硝子管７内に組込まれ、この内部に窒素
と酸素との混合ガスが封入さｎている。The mount is incorporated into a glass tube 7, and a mixed gas of nitrogen and oxygen is sealed inside the tube.
以上のような構成のサーマルプロテクタは、熱応動素子
４と可動′屯偵す−ド城９の先端部とは面と面との溶接
関係となるので、その溶接部分は第１図すに示すように
溶接点１１の小さな面積でよく、それぞ扛の両者の重ね
合った部分の中間位置に溶接を行うことができる。In the thermal protector configured as described above, the thermally responsive element 4 and the tip of the movable shield 9 are welded face to face, and the welded portion is shown in Figure 1. As such, the area of the welding point 11 is small, and welding can be performed at an intermediate position between the overlapping parts of the two parts.
したがって、上記構成のサーマルプロテクタは、従来の
サーマルプロテクタと異なり、開閉動作支点が溶接部分
に位置するのではなく、熱応動素子４に溶接した可動電
極リード線９の溶接点１１から離れた平担部１０の先端
に開閉動作支点が位置することとなる。したがって、熱
応動素子４は可動電極リード線９の平担部１０の先端を
支点にして反転し、開閉動作を繰返すこととなり、また
従来においては第２図Ｃに一点鎖巌で示す状態になって
いたものが、第１図Ｃに示すように、反り変位角度も小
さくなることから、開閉動作を非常に多くの回数にわた
って繰返しても、熱応動素子４は繰返し応力による亀裂
の発生が防止さｎ１開閉励咋の耐久性の向上が図れる。Therefore, unlike conventional thermal protectors, the thermal protector with the above configuration does not have the opening/closing operation fulcrum located at the welded part, but rather at a flat point away from the welding point 11 of the movable electrode lead wire 9 welded to the thermally responsive element 4. The opening/closing operation fulcrum is located at the tip of the portion 10. Therefore, the thermally responsive element 4 turns around using the tip of the flat part 10 of the movable electrode lead wire 9 as a fulcrum and repeats the opening and closing operations. However, as shown in FIG. 1C, the angle of warp displacement becomes smaller, so even if the opening and closing operations are repeated a large number of times, the thermally responsive element 4 is prevented from cracking due to repeated stress. The durability of n1 opening/closing excitation can be improved.
発明の詳細
な説明したように、不発明は硝子背向に固定電極体とこ
れと対向してスナップアクションを有する熱応動素子か
らなる可動電極とを設け、前記熱応動素子の端部に、先
端部が平担になった可動電極リード線の平和部の一部を
接続することによっテ、熱応動素子のスナップアクショ
ン動作を多数回にわたって繰返しても、その繰返し応力
によ−る熱応動素子の亀裂の発生を防止することができ
、開閉動作の耐久性の向上を図ることのできるサーマル
プロテクタを提供することができるものである。As described in detail, the invention includes a fixed electrode body on the back side of the glass and a movable electrode made of a thermally responsive element having a snap action opposed to the fixed electrode body, and a tip at the end of the thermally responsive element. By connecting a part of the flat part of the movable electrode lead wire, even if the snap action operation of the thermally responsive element is repeated many times, the thermally responsive element will not be affected by the repeated stress. It is possible to provide a thermal protector that can prevent the occurrence of cracks and improve the durability of opening and closing operations.
第１図ａは本発明の一実捲例であるサーマルプロテクタ
の断面図、同図すはそのマウントの正面図、同図Ｃは熱
応動素子の反転時の側面図、第２図ａは従来のサーマル
プロテクタの断面図、同図すはそのマウントの正面図、
同図Ｃは熱応動素子の反転時の側面図である。
１・・・・・・固定電極リード巌、２，３・・・・・・
接点、４・・・・・・熱応動素子、７・・・・・・硝子
管、９・・・・・・可動電極リード線、１０・・・・・
・平担部、１１・・・・・・溶接点。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
（の）（ｂ）
第２図
（ａ） （ｂ）（す
ｌ／
ζすFigure 1a is a cross-sectional view of a thermal protector that is an example of the present invention, the figure is a front view of its mount, Figure C is a side view of the thermally responsive element when it is inverted, and Figure 2a is a conventional one. A cross-sectional view of the thermal protector, and a front view of its mount.
Figure C is a side view of the thermally responsive element when it is reversed. 1... Fixed electrode lead Iwao, 2, 3...
Contact, 4...Thermal response element, 7...Glass tube, 9...Movable electrode lead wire, 10...
・Flat section, 11...Welding point. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure (of) (b) Figure 2 (a) (b) (sl/ζs
Claims (1)
固定電極と対向してスナップアクションを有する熱応動
素子からなる可動電極とを設け、前記熱応動素子の端部
に、先端部が平担になった可動電極リード線の前記平担
部の一部を接続したことを特徴とするサーマルプロテク
タ。A fixed electrode having a fixed electrode lead wire and a movable electrode consisting of a thermally responsive element having a snap action are provided in opposition to the fixed electrode in the glass tube, and the distal end portion is flat at the end of the thermally responsive element. A thermal protector characterized in that a part of the flat part of the movable electrode lead wire is connected to the flat part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21970384A JPS6196628A (en) | 1984-10-18 | 1984-10-18 | Thermal protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21970384A JPS6196628A (en) | 1984-10-18 | 1984-10-18 | Thermal protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6196628A true JPS6196628A (en) | 1986-05-15 |
Family
ID=16739640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21970384A Pending JPS6196628A (en) | 1984-10-18 | 1984-10-18 | Thermal protector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6196628A (en) |
-
1984
- 1984-10-18 JP JP21970384A patent/JPS6196628A/en active Pending
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