JPS5933141Y2 - Trip-free bimetal switch - Google Patents
Trip-free bimetal switchInfo
- Publication number
- JPS5933141Y2 JPS5933141Y2 JP13973477U JP13973477U JPS5933141Y2 JP S5933141 Y2 JPS5933141 Y2 JP S5933141Y2 JP 13973477 U JP13973477 U JP 13973477U JP 13973477 U JP13973477 U JP 13973477U JP S5933141 Y2 JPS5933141 Y2 JP S5933141Y2
- Authority
- JP
- Japan
- Prior art keywords
- contact piece
- bimetal
- electric contact
- parallel link
- molded product
- 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
Landscapes
- Breakers (AREA)
Description
【考案の詳細な説明】
本考案は、トリップフリー型バイメタルスイッチの新規
なる構造に係り、その特徴とする所は、平行リンクと成
型品カムの組合せによる極めて簡単な構造にも不拘ずト
リップフリー型となしたバイメタルスイッチの構造を提
供するものである。[Detailed description of the invention] The present invention relates to a new structure of a trip-free type bimetal switch.The feature is that it is trip-free despite its extremely simple structure due to the combination of parallel links and molded cams. The present invention provides a bimetallic switch structure that achieves this.
本考案のスイッチを実施例によって説明する。The switch of the present invention will be explained by way of an example.
電気絶縁性材料にて成形したケース12の凹陥部13の
上部に金具14を圧入固定し、該金具にバイメタル15
を抵抗溶接等により固定する。A metal fitting 14 is press-fitted into the upper part of the recessed part 13 of the case 12 formed of an electrically insulating material, and a bimetal 15 is attached to the metal fitting.
Fix by resistance welding, etc.
バイメタル15は直線状部16と自由端部18の間にU
形部曲部17を設は湾曲部内にバイメタルに加熱用ヒー
ター20を挿入して端子1,2を通じて加熱する。The bimetal 15 has a U between the straight portion 16 and the free end 18.
When the curved portion 17 is formed, a bimetal heater 20 is inserted into the curved portion and heated through the terminals 1 and 2.
バイメタルの先端部はラッチ19となっている。The tip of the bimetal is a latch 19.
又、バイメタル15を空間部34に配置して、コ字状で
一端が軸23で遊嵌される平行リンク22の他端部に成
型品カム26を軸31で遊嵌せしめる。Further, the bimetal 15 is arranged in the space 34, and the molded cam 26 is loosely fitted on the shaft 31 to the other end of the U-shaped parallel link 22, one end of which is loosely fitted on the shaft 23.
亦ケースの上部には挿入孔32を設け、リセットボタン
25を配置し、リセットボタンの先端で成形品カムの押
圧面29を押すようになっている。In addition, an insertion hole 32 is provided in the upper part of the case, and a reset button 25 is arranged so that the tip of the reset button presses the pressing surface 29 of the molded product cam.
成形品カムは前記リセットボタンで押圧される時カム先
端部30は前記バイメタル先端ラッチ部19と掛合する
。When the molded cam is pressed by the reset button, the cam tip 30 engages the bimetallic tip latch 19.
又成形品カムに開閉動作用リンクビン28を設け、端子
4に設けられた導電性バネγ上の接点10は端子3に設
けられた導電性バネ6上の接点9側に強性的に接触させ
るよう配置する。Further, a link pin 28 for opening/closing operation is provided on the molded product cam, and the contact 10 on the conductive spring γ provided on the terminal 4 is in strong contact with the contact 9 side on the conductive spring 6 provided on the terminal 3. Place it so that
そして端子5に設けられた導電性バネ8上の接点11は
接点10と離間の状態に置かれる。The contact 11 on the conductive spring 8 provided on the terminal 5 is placed apart from the contact 10.
此のバイメタルスイッチが一定時間以上通電される時は
ヒータ20によってバイメタルが加熱されバイメタル先
端ラッチ部19が←開方向に変位し成型品カム26の先
端部30との掛合が外れ平行リンク22及び、成型品カ
ム26は第1図から第2図に示す取置に変位し、同時に
端子4に設けられた導電性バネ7の接点10は接点9か
ら離れ、端子5に設けられた導電性バネ8上の接点11
に移動して接点切替の目的を達するのである。When this bimetal switch is energized for a certain period of time or more, the bimetal is heated by the heater 20, and the bimetal tip latch portion 19 is displaced in the opening direction, disengaging from the tip portion 30 of the molded product cam 26, and the parallel link 22 and The molded product cam 26 is displaced from the position shown in FIG. 1 to the position shown in FIG. Upper contact 11
The purpose of contact switching is achieved by moving to .
之れは自然状態に卦ける動作状態であるが使用者が故意
に手動リセットボタン25を押したまま復帰しないよう
に押えたり、テープを貼ったりしても、一定時間が経過
すればバイメタル先端ラッチ部19と成形品カムの先端
30の掛合は外れ成型品カム26は導電性バネIの反発
力によりこの位置で回動して、接点10と接点9は離間
し逆に接点10と接点11が接触するので所謂トリップ
フリー機構を損なうことがない。This is a normal operating state, but even if the user intentionally holds down the manual reset button 25 and tapes it to prevent it from returning, the bimetal tip latch will release after a certain period of time. The engagement between the part 19 and the tip 30 of the molded product cam is disengaged, and the molded product cam 26 rotates in this position due to the repulsive force of the conductive spring I, and the contacts 10 and 9 are separated, and conversely, the contacts 10 and 11 are separated. Since they are in contact, the so-called trip-free mechanism is not damaged.
又、一旦動作したバイメタルスイッチを復元スるには手
動リセットボタン25を押すのであるが、この時は成型
品カム26の先端の開閉動作用リンクピン28は接点9
と接点10が離間状態のまま押し込まれて行き、成型品
カムの他端部30とバイメタル先端ラッチ部19が掛合
して後、手動リセットボタンの押圧力が取り去られて、
初めて接点10と接点9は接触状態になるようにしであ
る。In addition, to restore the bimetal switch once activated, the manual reset button 25 is pressed, but at this time, the link pin 28 for opening/closing operation at the tip of the molded product cam 26 is connected to the contact point 9.
The contact point 10 is pushed in while being separated, and after the other end portion 30 of the molded product cam and the bimetal tip latch portion 19 are engaged, the pressing force of the manual reset button is removed.
For the first time, contacts 10 and 9 are brought into contact.
尚、金具14に取付られるネジ33はバイメタル動作調
整用、バイメタルラッチ部19に取付けたバネ21はヒ
ーター20をバイメタル上に安定させるためのものであ
る。The screw 33 attached to the metal fitting 14 is for adjusting the bimetal operation, and the spring 21 attached to the bimetal latch portion 19 is for stabilizing the heater 20 on the bimetal.
図面は本考案スイッチの一実施例を示したもので第1図
はカバーを外した状態で且つラッチ状態にある正面図、
第2図は仝上に於けるラッチが解かれた状態図、第3図
はラッチ機構を説明する為の関連部品の分解斜視図、第
4図は端子回路図をそれぞれ示したものである。
1.2,3,4.5は端子金具、6,7,8は導電性バ
ネ、9,10.11は接点、12はケース、13はケー
ス凹陥部、14は金具、15はバイメタル、16はバイ
メタル直線部、17はバイメタルU形溝曲部、18はバ
イメタル自由端部、19はバイメタルラッチ部、20は
バイメタル加熱用ヒーター、21はバネ、22は平行リ
ンク、23は軸、24はバネ、25は手動リセットボタ
ン、26は成形品カム、27は孔、28は開閉動作用リ
ンクピン、29は押圧部、30は係止部、31は軸、3
2は挿入孔、33は小ねじ、34は空間部、である。The drawings show one embodiment of the switch of the present invention, and Figure 1 is a front view with the cover removed and in the latched state;
FIG. 2 is a diagram showing the state in which the above latch is released, FIG. 3 is an exploded perspective view of related parts for explaining the latch mechanism, and FIG. 4 is a terminal circuit diagram. 1.2, 3, 4.5 are terminal fittings, 6, 7, 8 are conductive springs, 9, 10.11 are contacts, 12 is a case, 13 is a case recess, 14 is a metal fitting, 15 is a bimetal, 16 1 is a bimetal straight part, 17 is a bimetal U-shaped groove part, 18 is a bimetal free end, 19 is a bimetal latch part, 20 is a bimetal heating heater, 21 is a spring, 22 is a parallel link, 23 is a shaft, and 24 is a spring , 25 is a manual reset button, 26 is a molded product cam, 27 is a hole, 28 is a link pin for opening/closing operation, 29 is a pressing part, 30 is a locking part, 31 is a shaft, 3
2 is an insertion hole, 33 is a small screw, and 34 is a space.
Claims (1)
定され、中間部分が略U字状に形成され、且つ、U字状
内部にバイメタル加熱用ヒーターを埋設し、他端を自由
端とし、ラッチ部を形成したバイメタル板、該バイメタ
ルを空間部に配置しコ字状に形成された平行リンク、該
平行リンクのコ字状基部に形成された枢止孔、該平行リ
ンクの枢止孔に遊嵌され、前記ケースに支持される軸、
該軸に設けられ、前記平行リンクのコ字状基部を付勢す
るバネ、前記平行リンクの2又状端部の穴に軸を介して
遊嵌される枢止孔と一端に前記バイメタルのラッチ部と
係合する係止部と、他端に開閉動作用リンクピンとを有
する成型品カム、前期成型品カムの回動基部を押圧する
手動リセットボタン、前記成型品カムの開閉部作用リン
クピンを常時付勢する第1の電気接触片、該第1の電気
接触片に対面し、常時離間配置された第2の電気接触片
、前記第1の電気接触片に対面し、常時接触配置された
第3の電気接触片からなるトリップフリー型バイメタル
スイッチ。A metal fitting provided on the upper surface of the inside of the case; one end is fixed to the metal fitting, the middle part is formed into a substantially U-shape, and a bimetal heating heater is embedded inside the U-shape, and the other end is a free end. , a bimetal plate on which a latch portion is formed, a parallel link formed in a U-shape by placing the bimetal in a space, a pivot hole formed in the U-shaped base of the parallel link, and a pivot hole in the parallel link. a shaft loosely fitted into the case and supported by the case;
a spring provided on the shaft and biasing the U-shaped base of the parallel link; a pivot hole loosely fitted through the shaft into a hole in the bifurcated end of the parallel link; and a bimetal latch at one end. A molded product cam having a locking part that engages with the part and a link pin for opening and closing operation at the other end, a manual reset button that presses the rotation base of the former molded product cam, and a link pin that operates the opening and closing part of the molded product cam. a first electric contact piece that is always energized; a second electric contact piece that faces the first electric contact piece and is always spaced apart from the first electric contact piece; a second electric contact piece that faces the first electric contact piece and is always in contact with the first electric contact piece; Trip-free bimetallic switch consisting of a third electrical contact piece.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13973477U JPS5933141Y2 (en) | 1977-10-17 | 1977-10-17 | Trip-free bimetal switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13973477U JPS5933141Y2 (en) | 1977-10-17 | 1977-10-17 | Trip-free bimetal switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5464964U JPS5464964U (en) | 1979-05-08 |
JPS5933141Y2 true JPS5933141Y2 (en) | 1984-09-17 |
Family
ID=29114065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13973477U Expired JPS5933141Y2 (en) | 1977-10-17 | 1977-10-17 | Trip-free bimetal switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5933141Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2550320B2 (en) * | 1986-05-26 | 1996-11-06 | 松下電工株式会社 | Overcurrent protection device |
-
1977
- 1977-10-17 JP JP13973477U patent/JPS5933141Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5464964U (en) | 1979-05-08 |
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