JPS6338811B2 - - Google Patents
Info
- Publication number
- JPS6338811B2 JPS6338811B2 JP55027192A JP2719280A JPS6338811B2 JP S6338811 B2 JPS6338811 B2 JP S6338811B2 JP 55027192 A JP55027192 A JP 55027192A JP 2719280 A JP2719280 A JP 2719280A JP S6338811 B2 JPS6338811 B2 JP S6338811B2
- Authority
- JP
- Japan
- Prior art keywords
- fixed contact
- contact
- folded piece
- arc
- movable contact
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
Landscapes
- Breakers (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、回路しや断器に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to circuit breakers and disconnectors.
従来、固定接触子とアーク走行板との連結を簡
単化するためにアーク走行板に凹部を設け、凹部
を固定接触子の固定接点に係合した回路しや断器
が考えられた（たとえば特開昭55−84280号）。
Conventionally, in order to simplify the connection between the fixed contact and the arc running plate, circuit breakers and circuit breakers were considered in which a recess was provided in the arc running plate and the recess was engaged with the fixed contact of the fixed contact. (Opening No. 55-84280).
ところが、この回路しや断器は、固定接点の幅
が制約されるので大電流の通電の制約を受け、ま
た固定接点の幅を大きくすると器台が大型化する
欠点があつた。また固定接点を固定接触子の折返
し片に設けた場合、折返し片の折返しのばらつき
により固定接点の可動接点に対する位置がばらつ
くという欠点があつた。
However, this circuit breaker has the drawback that the width of the fixed contact is limited, which limits the ability to carry a large current, and when the width of the fixed contact is increased, the device stand becomes larger. Further, when the fixed contact is provided on the folded piece of the fixed contact, there is a drawback that the position of the fixed contact with respect to the movable contact varies due to variations in the folding of the folded piece.
したがつて、この発明の目的は、器台を大型化
することなく固定接点の幅を増大でき、しかも折
返し片に固定接点を設けた場合に固定接点の可動
接点に対する位置のばらつきを低減することがで
きる回路しや断器を提供することである。 Therefore, an object of the present invention is to increase the width of the fixed contact without increasing the size of the device stand, and to reduce variations in the position of the fixed contact with respect to the movable contact when the fixed contact is provided on the folded piece. The purpose is to provide circuit breakers and disconnectors that can be used.
この発明の回路しや断器は、器台と、この器台
に基端側が支持されて先端側に形成された折返し
片に固定接点を設けるとともに前記折返し片の先
端側で前記固定接点に隣接して前記固定接点の表
面高さとほぼ同じ程度の高さを有しかつ前記固定
接点よりも細幅の位置決め突起を形成した固定接
触子と、前記折返し片に平行に対向配置されて前
記折返し片の先端側と同じ側の先端部に前記固定
接点に対向する可動接点を有する可動接触子と、
前記器台に取付けられて前記位置決め突起に係合
する凹部を形成するとともに前記凹部の縁部で前
記折返し片を前記可動接点と反対向きに押付けて
前記固定接点を位置系めするアーク走行板とを備
えたものである。
The circuit breaker of the present invention has a fixed contact provided in a device stand and a folded piece formed on the distal end side with the proximal end supported by the device stand, and adjacent to the fixed contact on the distal end side of the folded piece. a fixed contact having a height approximately the same as the surface height of the fixed contact and having a positioning protrusion narrower than the fixed contact; and a folded piece disposed parallel to and opposite to the folded piece. a movable contact having a movable contact facing the fixed contact on the same side as the distal end side of the movable contact;
an arc travel plate that is attached to the device stand and forms a recess that engages with the positioning protrusion, and presses the folded piece in the opposite direction to the movable contact at the edge of the recess to position the fixed contact; It is equipped with the following.
この発明の構成によれば、アーク走行板の凹部
を固定接点よりも細幅の位置決め突起に係合する
とともに凹部の縁部で折返し片を可動接点と反対
向きに押えたため、アーク走行板の位置決めが容
易で組立容易になるとともに、折返し片を凹部の
縁部で押付けたため折返し片の折返し位置のばら
つきによる固定接点の可動接点に対する位置のば
らつきを抑えることができる。
According to the configuration of the present invention, the recess of the arc travel plate is engaged with the positioning protrusion narrower than the fixed contact, and the folded piece is pressed in the opposite direction to the movable contact by the edge of the recess, so that the position of the arc travel plate can be adjusted. In addition, since the folded piece is pressed against the edge of the recess, variations in the position of the fixed contact with respect to the movable contact due to variations in the folded position of the folded piece can be suppressed.
また位置決め突起と固定接点がほぼ同じ高さで
あるため、アークの固定接点から位置決め突起へ
の移行が円滑にでき、このため固定接点にアーク
が膠着することによる接点消耗を低減できるとと
もに、接触抵抗の増大による定常通電時の可動接
点および固定接点の温度上昇を低く抑えることが
できる。 In addition, since the positioning protrusion and the fixed contact are at almost the same height, the transition of the arc from the fixed contact to the positioning protrusion is smooth, which reduces contact wear caused by the arc sticking to the fixed contact, and reduces contact resistance. It is possible to suppress the temperature rise of the movable contact and the fixed contact during steady energization due to an increase in the temperature to a low level.
位置決め突起が細幅であるため、固定接点の幅
を器台を大きくすることなく最大で固定接触子の
幅と同程度にすることができ、大電流に対応する
ことができる。 Since the positioning protrusion is narrow, the width of the fixed contact can be made up to the same width as the fixed contact without enlarging the device stand, and it is possible to handle large currents.
アークを可動接触子と固定接触子とで磁気駆動
できるため、アークを固定接点および可動接点か
ら効果的に引き離すことができる。 Since the arc can be magnetically driven by the movable contact and the fixed contact, the arc can be effectively separated from the fixed and movable contacts.
この発明の一実施例を第１図および第２図に基
づいて説明する。すなわち、この回路しや断器
は、器台１と、この器台１に基端２側が支持され
て先端側に形成された折返し片３に固定接点４を
設けるとともに折返し片３の先端側で固定接点４
に隣接して固定接点４の表面高さとほぼ同じ程度
の高さを有しかつ固定接点４よりも細幅の位置決
め突起５を形成した固定接触子６と、折返し片３
に平行に対向配置されて折返し片３の先端側と同
じ側の先端部に固定接点４に対向する可動接点７
を有する可動接触子８と、器台１に取付けられて
位置決め突起５に係合する凹部９を形成するとと
もに凹部９の縁部で折返し片３を可動接点７と反
対向きに押付けて固定接点４を位置決めするアー
ク走行板１０とを備えている。
An embodiment of the present invention will be described based on FIGS. 1 and 2. That is, this circuit breaker is provided with a fixed contact 4 on a device stand 1 and a folded piece 3 formed on the distal end side with the proximal end 2 side supported by this instrument stand 1, and a fixed contact point 4 on the distal end side of the folded piece 3. Fixed contact 4
A fixed contact 6 having a positioning protrusion 5 adjacent to the fixed contact 4 and having a height approximately the same as the surface height of the fixed contact 4 and having a width narrower than that of the fixed contact 4;
A movable contact 7 facing the fixed contact 4 is disposed parallel to and opposite to the fixed contact 4 at the tip end on the same side as the tip side of the folded piece 3.
A movable contact 8 having a movable contact 8 and a recess 9 which is attached to the device base 1 and engages with the positioning protrusion 5 are formed, and the folded piece 3 is pressed in the opposite direction to the movable contact 7 at the edge of the recess 9 to form a fixed contact 4. and an arc traveling plate 10 for positioning.
器台１はその上面がカバー１１で被覆され、ハ
ンドル１２、電源側端子１３および負荷側端子１
４を外部に露出している。また内部には機構部３
３が設けられ、復帰ばね２４で開極付勢された可
動接触子８を、ハンドル１を操作することにより
開閉するとともに、引外し素子２２，２５による
引外し板３４の動作により機構部３３をトリツプ
動作させて可動接触子８をトリツプ開極させるよ
うにしている。この場合、２６は機構部３３の出
力端となる可動枠である。また内部電路は、電源
側端子１３→短絡検出用の引外し素子２２のコイ
ル３１→銅より線３２→過電流検出用のバイメタ
ルである引外し素子２５→銅より線１８→可動接
触子８→固定接触子６→負荷側端子１４である。 The top surface of the device stand 1 is covered with a cover 11, and a handle 12, a power supply side terminal 13, and a load side terminal 1 are provided.
4 is exposed to the outside. In addition, there is a mechanism section 3 inside.
3 is provided, and the movable contact 8 biased to open by the return spring 24 is opened and closed by operating the handle 1, and the mechanism part 33 is opened and closed by operating the tripping plate 34 by the tripping elements 22 and 25. The trip operation is performed to trip-open the movable contact 8. In this case, 26 is a movable frame that becomes the output end of the mechanism section 33. The internal circuit is as follows: power supply terminal 13 → coil 31 of tripping element 22 for short circuit detection → stranded copper wire 32 → bimetal tripping element 25 for detecting overcurrent → stranded copper wire 18 → movable contact 8 → Fixed contact 6 → load side terminal 14.
固定接触子６は、基端２側が器台１の底面に支
持されるとともに、基端２が負荷側端子１４の端
子板を兼ねている。 The fixed contact 6 has its base end 2 side supported by the bottom surface of the device stand 1, and its base end 2 also serves as a terminal plate for the load side terminal 14.
可動接触子８は、中間部に軸受１５をわん曲に
より形成し、後端にばね支持突起１６を形成し、
軸受１５と可動接点７との間に可動枠２６を受け
る突起１７を形成している。軸受１５に嵌合する
軸１９はアーク走行板１０に対向するアーク走行
板２０の端部に形成された腕２１の先端に形成さ
れており、アーク走行板２０は短絡検出用の引外
し素子２２のヨーク２３に固定されている。また
可動接触子８の後端に銅より線１８の一端が溶接
され、復帰ばね２４の引外し素子２２のヨーク２
３と可動接触子８のばね支持突起１６との間に介
在されている。 The movable contactor 8 has a bearing 15 formed in a curved manner in the middle part, a spring support protrusion 16 in the rear end,
A protrusion 17 for receiving the movable frame 26 is formed between the bearing 15 and the movable contact 7. The shaft 19 that fits into the bearing 15 is formed at the tip of an arm 21 formed at the end of the arc running plate 20 facing the arc running plate 10, and the arc running plate 20 has a tripping element 22 for short circuit detection. is fixed to the yoke 23 of. Further, one end of the copper stranded wire 18 is welded to the rear end of the movable contact 8, and the yoke 2 of the tripping element 22 of the return spring 24 is welded to the rear end of the movable contact 8.
3 and the spring support protrusion 16 of the movable contact 8.
アーク走行板１０は、帯状板をＬ字形に折曲し
てあり、その一片の先端に凹部９を形成するとと
もにその側部に取付片２７を形成している。取付
片２７はフオーク状のかしめ脚２９を有してお
り、器台１に形成された取付孔２８にかしめ脚２
９を開脚することにより固定する。またアーク走
行板１０とアーク走行板２０との間に消弧グリツ
ド３０が架設される。 The arc traveling plate 10 is a belt-shaped plate bent into an L-shape, and has a recess 9 formed at the tip of one piece and a mounting piece 27 formed on the side thereof. The mounting piece 27 has a fork-shaped caulking leg 29, and the caulking leg 2 is inserted into the attachment hole 28 formed in the table 1.
9. Fix by opening the legs. Further, an arc extinguishing grid 30 is installed between the arc running plate 10 and the arc running plate 20.
この実施例によれば、アーク走行板１０の凹部
９を固定接点４よりも細幅の位置決め突起５に係
合するとともに凹部９の縁部で折返し片３を可動
接点７と反対向きに押えたため、アーク走行板１
０の位置決めが容易で組立容易になるとともに、
折返し片３を凹部９の縁部で押付けたため折返し
片３の折返し位置のばらつきによる固定接点４の
可動接点７に対する位置のばらつきを抑えること
ができる。 According to this embodiment, the recess 9 of the arc traveling plate 10 is engaged with the positioning protrusion 5 narrower than the fixed contact 4, and the folded piece 3 is pressed in the opposite direction to the movable contact 7 by the edge of the recess 9. , arc running plate 1
0 positioning is easy and assembly is easy,
Since the folded piece 3 is pressed against the edge of the recess 9, variations in the position of the fixed contact 4 relative to the movable contact 7 due to variations in the folded position of the folded piece 3 can be suppressed.
また位置決め突起５と固動接点４がほぼ同じ高
さであるため、アークの固定接点４から位置決め
突起５への移行が円滑にでき、このため固定接点
４にアークが膠着することによる接点消耗を低減
できるとともに、接触抵抗の増大による定常通電
時の可動接点７および固定接点４の温度上昇を低
く抑えることができる。 In addition, since the positioning protrusion 5 and the fixed contact 4 are at almost the same height, the arc can smoothly transition from the fixed contact 4 to the positioning protrusion 5, which prevents contact wear due to the arc sticking to the fixed contact 4. In addition, it is possible to suppress the temperature rise of the movable contact 7 and the fixed contact 4 during steady energization due to an increase in contact resistance to a low level.
位置決め突起５が細幅であるため、固定接点４
の幅を器台１を大きくすることなく最大で固定接
触子６の幅と同程度にすることができ、大電流に
対応することができる。 Since the positioning protrusion 5 is narrow, the fixed contact 4
It is possible to make the width of the contactor 6 at most the same as the width of the fixed contact 6 without increasing the size of the device stand 1, and it is possible to cope with a large current.
アークを可動接触子８と固定接触子６とで磁気
駆動できるため、アークを固定接点４および可動
接点７から効果的に引き離すことができる。 Since the arc can be magnetically driven by the movable contact 8 and the fixed contact 6, the arc can be effectively separated from the fixed contact 4 and the movable contact 7.
この発明の回路しや断器によれば、つぎの作用
効果がある。すなわち、アーク走行板の凹部を固
定接点よりも細幅の位置決め突起に係合するとと
もに凹部の縁部で折返し片を可動接点と反対向き
に押えたため、アーク走行板の位置決めが容易で
組立容易になるとともに、折返し片を凹部の縁部
で押付けたため折返し片の折返し位置のばらつき
による固定接点の可動接点に対する位置のばらつ
きを抑えることができる。
According to the circuit breaker and breaker of the present invention, there are the following effects. That is, the concave portion of the arc traveling plate engages with the positioning protrusion, which is narrower than the fixed contact, and the folded piece is pressed in the opposite direction to the movable contact at the edge of the concave portion, making it easy to position the arc traveling plate and assemble it. In addition, since the folded piece is pressed against the edge of the recess, it is possible to suppress variations in the position of the fixed contact relative to the movable contact due to variations in the folded position of the folded piece.
また位置決め突起と固定接点がほぼ同じ高さで
あるため、アークの固定接点から位置決め突起へ
の移行が円滑にでき、このため固定接点にアーク
が膠質することによる接点消耗を低減できるとと
もに、接触抵抗の増大による定常通電時の可動接
点および固定接点の温度上昇を低く抑えることが
できる。 In addition, since the positioning protrusion and the fixed contact are at almost the same height, the transition of the arc from the fixed contact to the positioning protrusion is smooth, which reduces contact wear due to the arc becoming sticky on the fixed contact, and reduces the contact resistance. It is possible to suppress the temperature rise of the movable contact and the fixed contact during steady energization due to an increase in the temperature to a low level.
位置決め突起が細幅であるため、固定接点の幅
を器台を大きくすることなく最大で固定接触子の
幅と同程度にすることができ、大電流に対応する
ことができる。 Since the positioning protrusion is narrow, the width of the fixed contact can be made up to the same width as the fixed contact without enlarging the device stand, and it is possible to handle large currents.
アークを可動接触子と固定接触子とで磁気駆動
できるため、アークを固定接点および可動接点か
ら効果的に引き離すことができる。 Since the arc can be magnetically driven by the movable contact and the fixed contact, the arc can be effectively separated from the fixed and movable contacts.
第１図はこの発明の一実施例の断面図、第２図
はその要部分解斜視図である。
１……器台、２……基端、３……折返し片、４
……固定接点、５……位置決め突起、６……固定
接触子、７……可動接点、８……可動接触子、９
……凹部、１０……アーク走行板。
FIG. 1 is a cross-sectional view of one embodiment of the present invention, and FIG. 2 is an exploded perspective view of its essential parts. 1... Instrument stand, 2... Base end, 3... Folded piece, 4
...Fixed contact, 5... Positioning protrusion, 6... Fixed contact, 7... Movable contact, 8... Movable contact, 9
...Concavity, 10...Arc traveling plate.
Claims (1)
側に形成された折返し片に固定接点を設けるとと
もに前記折返し片の先端側で前記固定接点に隣接
して前記固定接点の表面高さとほぼ同じ程度の高
さを有しかつ前記固定接点よりも細幅の位置決め
突起を形成した固定接触子と、前記折返し片に平
行に対向配置されて前記折返し片の先端側と同じ
側の先端部に前記固定接点に対向する可動接点を
有する可動接触子と、前記器台に取付けられて前
記位置決め突起に係合する凹部を形成するととも
に前記凹部の縁部で前記折返し片を前記可動接点
と反対向きに押付けて前記固定接点を位置決めす
るアーク走行板とを備えた回路しや断器。1. A fixed contact is provided on a device stand, and a folded piece formed on the distal end side with the proximal end supported by this instrument stand, and a surface height of the fixed contact is provided adjacent to the fixed contact on the distal end side of the folded piece. a fixed contact having a positioning protrusion having approximately the same height and narrower width than the fixed contact; and a tip end portion disposed parallel to and facing the folded piece and on the same side as the tip side of the folded piece. a movable contact having a movable contact facing the fixed contact; a recess that is attached to the device stand and engages with the positioning protrusion; An arc traveling plate that positions the fixed contact by pressing it in a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2719280A JPS56121241A (en) | 1980-02-29 | 1980-02-29 | Arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2719280A JPS56121241A (en) | 1980-02-29 | 1980-02-29 | Arc extinguishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56121241A JPS56121241A (en) | 1981-09-24 |
| JPS6338811B2 true JPS6338811B2 (en) | 1988-08-02 |
Family
ID=12214214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2719280A Granted JPS56121241A (en) | 1980-02-29 | 1980-02-29 | Arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56121241A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100470435B1 (en) * | 2004-11-04 | 2005-02-07 | 새턴정보통신(주) | Device for returning the knob of earth leakage circuit breakers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444775A (en) * | 1977-09-14 | 1979-04-09 | Matsushita Electric Works Ltd | Arc extinguishing chamber for wiring circuit breaker |
| JPS5484280A (en) * | 1977-12-17 | 1979-07-05 | Kawamura Denki Sangyo | Contact protector |
-
1980
- 1980-02-29 JP JP2719280A patent/JPS56121241A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444775A (en) * | 1977-09-14 | 1979-04-09 | Matsushita Electric Works Ltd | Arc extinguishing chamber for wiring circuit breaker |
| JPS5484280A (en) * | 1977-12-17 | 1979-07-05 | Kawamura Denki Sangyo | Contact protector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56121241A (en) | 1981-09-24 |
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