JPS6340342B2 - - Google Patents
Info
- Publication number
- JPS6340342B2 JPS6340342B2 JP55149607A JP14960780A JPS6340342B2 JP S6340342 B2 JPS6340342 B2 JP S6340342B2 JP 55149607 A JP55149607 A JP 55149607A JP 14960780 A JP14960780 A JP 14960780A JP S6340342 B2 JPS6340342 B2 JP S6340342B2
- Authority
- JP
- Japan
- Prior art keywords
- bimetal
- link
- handle
- locking piece
- actuator
- 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
- 239000002184 metal Substances 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Breakers (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
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 [Technical Field] The present invention relates to circuits and disconnectors.
従来の回路しや断器（たとえば特公昭34−2769
号）は、バイメタルに係止する作動子が機構部側
に設けられているため、バイメタルと作動子の位
置関係の設定が容易でなく、また作動子でトリツ
プリンクを押す際の接触により、バイメタルに通
電される電路と電気的に並列な電路が作動子によ
り形成される欠点があつた。
Conventional circuit breakers (e.g. Japanese Patent Publication No. 34-2769
No.), the actuator that locks onto the bimetal is provided on the mechanism side, so it is difficult to set the positional relationship between the bimetal and the actuator, and contact when pushing the trip link with the actuator may cause damage to the bimetal. There was a drawback that the actuator formed an electrical path that was electrically parallel to the electrical path to be energized.
この発明の目的は、バイメタルと作動子とを正
確に位置決めできるとともに、作動子を通じて並
列電路が形成されるのを防止した回路しや断器を
提供することである。
SUMMARY OF THE INVENTION An object of the present invention is to provide a circuit breaker that allows accurate positioning of a bimetal and an actuator and prevents parallel electrical circuits from being formed through the actuator.
この発明の回路しや断器は、先端部に固定軸を
設けるとともに中間部にばね受け部を形成した支
持体と、この支持体の基端部に基端が固着された
バイメタルと、前記固定軸に軸支されて前記バイ
メタルに係止する金属製の係止片を有するととも
にトリツプリンク叩き部、リセツト突起およびス
トツパ兼用のばね受け突起を一体に形成したプラ
スチツク製の作動子と、前記固定軸に巻部が支持
されて一端が前記ばね受け部に係止し他端が前記
ばね受け突起に係止し前記係止片を前記バイメタ
ルに係止する方向に付勢するねじりコイルばね
と、前記支持体と絶縁分離して設けられて前記バ
イメタルから解除した前記作動子の前記リセツト
突起を押圧する押圧部を有するハンドル、前記ト
リツプリンク叩き部により駆動されるトリツプリ
ンク、前記トリツプリンクにラツチされるラツチ
リンク、前記ラツチリンクに支持された状態で前
記ハンドルの操作により開閉動作する可動接触子
を有するフレームとを備えたものである。
The circuit breakers and disconnectors of the present invention include a support body provided with a fixed shaft at its distal end and a spring receiving part formed in the middle part, a bimetal whose base end is fixed to the base end of the support body, and a bimetal member whose base end is fixed to the base end of the support body. a plastic actuator that is pivotally supported on the shaft and has a metal locking piece that locks on the bimetal, and that is integrally formed with a trip link tapping part, a reset projection, and a spring receiving projection that also serves as a stopper; a torsion coil spring in which a winding portion is supported, one end is locked to the spring receiving portion, the other end is locked to the spring receiving protrusion, and urges the locking piece in a direction to lock the bimetal; and the support. a handle provided insulated and separated from the body and having a pressing portion for pressing the reset protrusion of the actuator released from the bimetal; a trip link driven by the trip link hitting portion; a latch link latched to the trip link; and a frame having a movable contact that is opened and closed by operating the handle while being supported by the handle.
この発明の構成によれば、作動子が支持体に支
持されるとともにプラスチツク製であるため、作
動子が接触するトリツプリンク等とバイメタルと
を絶縁することができる。また係止片が金属製で
あるため熱変形を防止できるとともに係止片の摩
耗を低減でき、動作特性を安定化できる。 According to the configuration of the present invention, since the actuator is supported by the support and is made of plastic, it is possible to insulate the bimetal from trip links and the like with which the actuator comes into contact. Furthermore, since the locking piece is made of metal, it is possible to prevent thermal deformation, reduce wear of the locking piece, and stabilize operating characteristics.
実施例
この発明の一実施例を第１図ないし第３図に基
づいて説明する。すなわち、この回路しや断器
は、先端部に固定軸１を設けるとともに中間部に
ばね受け部２を形成した支持体３と、この支持体
３の基端部に基端が固着されたバイメタル４と、
固定軸１に軸支されてバイメタル４に係止する金
属製の係止片５を有するとともにトリツプリンク
叩き部６、リセツト突起７およびストツパ兼用の
ばね受け突起８を一体に形成したプラスチツク製
の作動子９と、固定軸１に巻部が支持されて一端
が前記ばね受け部２に係止し他端がばね受け突起
８に係止し係止片５をバイメタル４に係止する方
向に付勢するねじりコイルばね１０と、支持体３
と絶縁分離して設けられてバイメタル４から解除
した作動子９のリセツト突起７を押圧する押圧部
１１ａを有するハンドル１１、トリツプリンク叩
き部６により駆動されるトリツプリンク１２、ト
リツプリンク１２にラツチされるラツチリンク１
３、ラツチリンク１３に支持された状態でハンド
ル１１の操作により開閉動作する可動接触子１４
を有する機構部のフレーム１５とを備えている。Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 3. That is, this circuit breaker includes a support body 3 having a fixed shaft 1 at its distal end and a spring receiving part 2 at its intermediate part, and a bimetallic support body 3 whose base end is fixed to the base end of the support body 3. 4 and
A plastic actuator that has a metal locking piece 5 that is pivotally supported on a fixed shaft 1 and that locks on a bimetal 4, and also has a trip link tapping portion 6, a reset projection 7, and a spring receiving projection 8 that also serves as a stopper integrally formed. 9, a winding part is supported by the fixed shaft 1, one end is locked to the spring receiving part 2, the other end is locked to the spring receiving protrusion 8, and the locking piece 5 is biased in the direction of locking to the bimetal 4. A torsion coil spring 10 and a support body 3
A handle 11 having a pressing part 11a which is provided insulated and separated from the bimetal 4 and presses the reset protrusion 7 of the actuator 9 released from the bimetal 4, a trip link 12 driven by the trip link striking part 6, and a latch link 1 latched to the trip link 12.
3. A movable contact 14 that opens and closes by operating the handle 11 while being supported by the latch link 13.
A frame 15 of a mechanism section having a frame 15 is provided.
この回路しや断器は、第１図がオン状態であ
り、可動接触子１４の可動接点１６が固定接点１
７に接触して、電源側端子１８と負荷側端子１９
間に電流が流れる。すなわち、電源側端子１８→
固定接点１７→可動接点１６→可動接触子１４→
可とう電線２０→短絡電流検出用の電磁石２１の
コイル→可とう電線２２→バイメタル４→負荷側
端子１９となる。接点圧は開極ばね２３により与
えられる。 This circuit breaker is in the ON state in FIG. 1, and the movable contact 16 of the movable contactor 14 is connected to the fixed contact
7, the power supply side terminal 18 and the load side terminal 19
A current flows between them. In other words, the power supply side terminal 18→
Fixed contact 17 → Movable contact 16 → Movable contact 14 →
The flexible electric wire 20 → the coil of the electromagnet 21 for short-circuit current detection → the flexible electric wire 22 → the bimetal 4 → the load side terminal 19. Contact pressure is provided by the opening spring 23.
オフ状態は第１図でハンドル１１を左側に倒し
た状態である。すなわち、ハンドル１１の動作に
伴つて、ラツチリンク１３に支持された可動軸２
４がラツチリンク１３を摺動しながら、反転リン
ク２５およびスライドリンク２６が移動し、反転
リンク２５の反転後は開極ばね２３のばね力によ
り可動接触子１４が固定軸２７を支点に開極動作
する。 The off state is the state in which the handle 11 is tilted to the left in FIG. That is, as the handle 11 moves, the movable shaft 2 supported by the latch link 13
4 slides on the latch link 13, the reversing link 25 and the slide link 26 move, and after the reversing link 25 is reversed, the movable contact 14 is opened using the fixed shaft 27 as a fulcrum by the spring force of the opening spring 23. do.
２８はハンドル１１と反転リンク２５の連結軸
である。 28 is a connecting shaft between the handle 11 and the reversing link 25.
オン状態で電路に過電流が流れると、バイメタ
ル４が加熱されわん曲するので、バイメタル４が
係止片５から離れる。したがつて作動子９はねじ
りコイルばね１０により回動し、トリツプリンク
叩き部６でトリツプリンク１２を押し、トリツプ
リンク１２を固定軸１２ａのまわりを回動させ
る。この結果、ラツチリンク１３が係止部１２ｂ
から外れて釈放されるのでラツチリンク１３が固
定軸１３ａのまわりを開極ばね２３のばね力によ
り回動し、そのため可動軸２４およびスライドリ
ンク２６が移動して、可動接触子１４が開極動作
する。しや断後バイメタル４が冷却すると復帰
し、トリツプリンク１２は復帰ばね１２ｃにより
復帰する。一方作動子９はハンドル１１をオフ側
に移動すると、押圧部１１ａでリセツト突起７を
押すため、作動子９はねじりコイルばね１０に抗
して回動し係止片５がハンドル１１に係止可能と
なる。 When an overcurrent flows through the electric circuit in the ON state, the bimetal 4 is heated and bent, so that the bimetal 4 separates from the locking piece 5. Therefore, the actuator 9 is rotated by the torsion coil spring 10, and the trip link striking portion 6 pushes the trip link 12, causing the trip link 12 to rotate around the fixed shaft 12a. As a result, the latch link 13 locks into the locking portion 12b.
The latch link 13 rotates around the fixed shaft 13a due to the spring force of the opening spring 23, which moves the movable shaft 24 and the slide link 26, and the movable contact 14 performs the opening operation. . After the bimetal 4 cools down, it returns to its original state, and the trip link 12 returns to its original state due to the return spring 12c. On the other hand, when the actuator 9 moves the handle 11 to the off side, the pressing part 11a pushes the reset protrusion 7, so the actuator 9 rotates against the torsion coil spring 10 and the locking piece 5 locks on the handle 11. It becomes possible.
なお、２９はハンドル１１の復帰ばね、３０は
消弧装置、３１は負荷側端子１９の取付ねじであ
る。 Note that 29 is a return spring for the handle 11, 30 is an arc extinguishing device, and 31 is a mounting screw for the load side terminal 19.
この実施例によれば、作動子９が支持体３に支
持されるとともにプラスチツク製であるため、作
動子９が接触するトリツプリンク１２等とバイメ
タル４とを絶縁することができる。また係止片５
が金属製であるため熱変形を防止できるとともに
係止片５の摩耗を低減でき、動作特性を安定化で
きる。 According to this embodiment, since the actuator 9 is supported by the support 3 and is made of plastic, the bimetal 4 can be insulated from the trip link 12 and the like with which the actuator 9 comes into contact. Also, the locking piece 5
Since it is made of metal, thermal deformation can be prevented, wear of the locking piece 5 can be reduced, and operating characteristics can be stabilized.
この発明の回路しや断器によれば、作動子が支
持体に支持されるとともにプラスチツク製である
ため、作動子が接触するトリツプリンク等とバイ
メタルとを絶縁することができる。また係止片が
金属製であるため熱変形を防止できるとともに係
止片の摩耗を低減でき、動作特性を安定化できる
という効果がある。
According to the circuit breakers and disconnectors of the present invention, since the actuator is supported by the support and is made of plastic, it is possible to insulate the bimetal from the trip link or the like with which the actuator comes into contact. Furthermore, since the locking piece is made of metal, it is possible to prevent thermal deformation, reduce wear of the locking piece, and stabilize operating characteristics.
第１図はこの発明の一実施例の要部断面図、第
２図は要部斜視図、第３図はその部分分解斜視図
である。
１……固定軸、２……ばね受け部、３……支持
体、４……バイメタル、５……係止片、６……ト
リツプリンク叩き部、７……リセツト突起、８…
…ばね受け突起、９……作動子、１０……ねじり
コイルばね、１１……ハンドル、１１ａ……押圧
部、１２……トリツプリンク、１３……ラツチリ
ンク、１４……可動接触子、１５……フレーム。
FIG. 1 is a sectional view of a main part of an embodiment of the present invention, FIG. 2 is a perspective view of a main part, and FIG. 3 is a partially exploded perspective view thereof. DESCRIPTION OF SYMBOLS 1... Fixed shaft, 2... Spring receiving part, 3... Support body, 4... Bimetal, 5... Locking piece, 6... Trip link tapping part, 7... Reset protrusion, 8...
... Spring receiving projection, 9 ... Operator, 10 ... Torsion coil spring, 11 ... Handle, 11a ... Pressing part, 12 ... Trip link, 13 ... Latch link, 14 ... Movable contact, 15 ... Frame .
Claims (1)
ね受け部を形成した支持体と、この支持体の基端
部に基端が固着されたバイメタルと、前記固定軸
に軸支されて前記バイメタルに係止する金属製の
係止片を有するとともにトリツプリンク叩き部、
リセツト突起およびストツパ兼用のばね受け突起
を一体に形成したプラスチツク製の作動子と、前
記固定軸に巻部が支持されて一端が前記ばね受け
部に係止し他端が前記ばね受け突起に係止し前記
係止片を前記バイメタルに係止する方向に付勢す
るねじりコイルばねと、前記支持体と絶縁分離し
て設けられて前記バイメタルから解除した前記作
動子の前記リセツト突起を押圧する押圧部を有す
るハンドル、前記トリツプリンク叩き部により駆
動されるトリツプリンク、前記トリツプリンクに
ラツチされるラツチリンク、前記ラツチリンクに
支持された状態で前記ハンドルの操作により開閉
動作する可動接触子を有するフレームとを備えた
回路しや断器。1. A support body provided with a fixed shaft at its distal end and a spring receiving part formed in the middle part, a bimetal whose base end is fixed to the base end of this support, and a bimetal that is pivotally supported by the fixed shaft and is attached to the bimetal. It has a metal locking piece and a trip link tapping part,
A plastic actuator is integrally formed with a spring receiving protrusion that also serves as a reset protrusion and a stopper. a torsion coil spring that biases the locking piece in the direction of locking the locking piece to the bimetal, and a pressure that is provided insulated and separated from the support and presses the reset protrusion of the actuator released from the bimetal. A circuit comprising a handle having a handle, a trip link driven by the trip link striking part, a latch link latched to the trip link, and a frame having a movable contact that opens and closes by operating the handle while supported by the latch link. Shiya disconnector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14960780A JPS5765629A (en) | 1980-10-23 | 1980-10-23 | Trip unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14960780A JPS5765629A (en) | 1980-10-23 | 1980-10-23 | Trip unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5765629A JPS5765629A (en) | 1982-04-21 |
| JPS6340342B2 true JPS6340342B2 (en) | 1988-08-10 |
Family
ID=15478899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14960780A Granted JPS5765629A (en) | 1980-10-23 | 1980-10-23 | Trip unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5765629A (en) |
-
1980
- 1980-10-23 JP JP14960780A patent/JPS5765629A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5765629A (en) | 1982-04-21 |
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