JPH05303930A - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
JPH05303930A
JPH05303930A JP4159268A JP15926892A JPH05303930A JP H05303930 A JPH05303930 A JP H05303930A JP 4159268 A JP4159268 A JP 4159268A JP 15926892 A JP15926892 A JP 15926892A JP H05303930 A JPH05303930 A JP H05303930A
Authority
JP
Japan
Prior art keywords
hole
unit
partition wall
partition plate
arc
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.)
Granted
Application number
JP4159268A
Other languages
Japanese (ja)
Other versions
JP2882186B2 (en
Inventor
Yasushi Genba
康司 玄羽
Takayoshi Ishikawa
尊義 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4159268A priority Critical patent/JP2882186B2/en
Publication of JPH05303930A publication Critical patent/JPH05303930A/en
Application granted granted Critical
Publication of JP2882186B2 publication Critical patent/JP2882186B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H2009/305Means for extinguishing or preventing arc between current-carrying parts including means for screening for arc gases as protection of mechanism against hot arc gases or for keeping arc gases in the arc chamber

Abstract

PURPOSE:To prevent leak of arc at an arc extinguishing part from a through- hole in a partition plate closing an aperture of the partition plate toward a mechanism part at the time of breaking, and prevent an inter-phase short circuit by providing a thin thickness part in contact with an insulation link at the through-hole. CONSTITUTION:A mechanism part unit having an energization accumulating part, and an energization part unit having an arc extinguishing part are disposed in a casing through a partition wall 46. An aperture 47 for penetrating an insulation link 23 to connect the mechanism part unit to the energization part unit is provided in the partition wall 46, and a partition plate 50 is inserted through a through-hole 50a to be installed on the insulation link 23 to slide to the partition wall 46 to move with the insulation link 23. Thin thickness parts 50C, 50D are provided at the through-hole 50a in the partition plate 50 to come in contact with the insulation link 23 for closing a gap, so an arc at the arc extinguishing part is prevented from leaking from the through-hole 50a toward the mechanism part, thereby a circuit breaker without generating an inter-phase short circuit can be manufactured.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は回路遮断器、特に筐体
の前面よりハンドル操作して蓄勢部を蓄圧したのち指令
を与えることにより通電部を前記蓄勢力で閉成させさら
に開放させる気中遮断器に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit breaker, in particular, a handle is operated from the front side of a housing to store a pressure in a power storage unit and then give a command to close the current-carrying unit by the power storage force and further open it. It relates to an air circuit breaker.

【0002】[0002]

【従来の技術】図6〜図13は例えば特開平3−201
334号公報に示された従来のこの種の気中遮断器を示
す図であり、図6は投入バネが放勢したトリップ状態を
示す側面断面図、図7はチャージが完了したオフ状態を
示す側面断面図、図8はオン状態を示す側面断面図、図
9は図6の要部のみを示す説明図、図10は図7の要部
のみを示す説明図、図11は図8の要部のみを示す説明
図、図12はカムシャフトの側面図、図13はメインシ
ャフトの側面図である。
2. Description of the Related Art FIGS. 6 to 13 show, for example, JP-A-3-201.
FIG. 7 is a view showing a conventional air circuit breaker of this type disclosed in Japanese Patent No. 334, FIG. 6 is a side sectional view showing a trip state in which a closing spring is released, and FIG. 7 shows an off state in which charging is completed. 8 is a side sectional view showing an ON state, FIG. 9 is an explanatory diagram showing only an essential part of FIG. 6, FIG. 10 is an explanatory diagram showing only an essential part of FIG. 7, and FIG. 12 is a side view of the camshaft, and FIG. 13 is a side view of the main shaft.

【0003】図において、1は筐体で、通電部ユニット
ケース1aと機構部ユニットケース1bとで構成されて
いる。2は消弧室、3は手動操作ハンドル、4はカムシ
ャフト、5はカムシャフト4に設けられたラチェット
で、手動操作ハンドル3により手動操作される。6はカ
ムシャフト4に設けられたラチェットで、図示しないモ
ータにより駆動される。7はカムシャフト4に設けられ
たカム、8はカム7に設けたカム側ローラ、9はカム7
の上方にあって固定軸10を支点として回転するチャー
ジアーム、11はチャージアーム9の一端に設けたアー
ム側ローラで、カム7を転接することによりカム7によ
り回転駆動される。12はチャージアーム9の中腹部上
面に形成したカム面、13は投入バネ、14は投入バネ
13を保持するガイド板で、長孔14aを有している。
15はチャージアーム9の他端に設けたバネカケピン
で、長孔14aに沿って移動して投入バネ13を蓄圧す
る。16は固定軸10に回転可能に装着したクローズラ
ッチで、中腹部にラッチ側ローラ17を有すると共に一
端側はカム側ローラ8に係合する。18は固定軸19を
中心に回転するクローズラッチで、下端はラッチ側ロー
ラ17に係合すると共に上端側はクローズバー20に係
合している。クローズバー20は図示しないが手動ある
いはソレノイドなどによりオン操作される。
In the figure, reference numeral 1 designates a casing, which is composed of a current carrying unit case 1a and a mechanical unit case 1b. Reference numeral 2 is an arc extinguishing chamber, 3 is a manual operation handle, 4 is a cam shaft, and 5 is a ratchet provided on the cam shaft 4, which is manually operated by the manual operation handle 3. A ratchet 6 is provided on the camshaft 4 and is driven by a motor (not shown). 7 is a cam provided on the cam shaft 4, 8 is a cam side roller provided on the cam 7, and 9 is a cam 7.
Is a charge arm that is located above and rotates about the fixed shaft 10 as a fulcrum. Reference numeral 11 is an arm-side roller provided at one end of the charge arm 9 and is rotationally driven by the cam 7 by rollingly contacting the cam 7. 12 is a cam surface formed on the upper surface of the middle part of the charge arm 9, 13 is a closing spring, 14 is a guide plate for holding the closing spring 13, and has a long hole 14a.
Reference numeral 15 denotes a spring pin provided at the other end of the charge arm 9, which moves along the long hole 14a to store the pressure of the closing spring 13. Reference numeral 16 is a close latch rotatably mounted on the fixed shaft 10. The close latch 16 has a latch-side roller 17 in the middle abdomen and one end engages with the cam-side roller 8. Reference numeral 18 is a close latch that rotates around a fixed shaft 19, and has a lower end engaged with a latch side roller 17 and an upper end engaged with a close bar 20. Although not shown, the close bar 20 is turned on manually or by a solenoid or the like.

【0004】21はメインシャフトで、筐体1に回転可
能に支持されている。22はメインシャフト21に等間
隔で3個固定したアームで、3極分の絶縁リンク23が
ピン24によりそれぞれ連結されている。25はアーム
22と同形のアームで、メインシャフト21にアーム2
2と同角度で固定されている。26は2本のリンクによ
り構成される投入トグルリンク機構で、一端側はピン2
7によりアーム25に連結される。28はリンク機構2
6の中心ピン29により回転可能に支持されるリンク側
ローラで、チャージアーム9のカム面12に当接する位
置関係にある。30は固定軸31に回転可能に支持され
るリンクレバーで、一端側にピン32によりリンク機構
26の他端側が連結される。33はリンクレバー30の
中腹部に回転可能に設けたレバー側ローラ、34は固定
軸19に回転可能に支持されるトリップラッチで、レバ
ー側ローラ33に係合すると共に上端側はトリップバー
35に係合している。トリップバー35は後述する釈放
形電磁引外し装置Xによりトリップ操作される。
A main shaft 21 is rotatably supported by the housing 1. Reference numeral 22 denotes an arm fixed to the main shaft 21 at three equal intervals, to which insulating links 23 for three poles are connected by pins 24, respectively. 25 is an arm having the same shape as the arm 22, and the arm 2 is attached to the main shaft 21.
It is fixed at the same angle as 2. 26 is a closing toggle link mechanism composed of two links, one end of which is a pin 2
It is connected to the arm 25 by 7. 28 is the link mechanism 2
The link side roller is rotatably supported by the center pin 29 of No. 6, and is in a positional relationship of contacting the cam surface 12 of the charge arm 9. A link lever 30 is rotatably supported by a fixed shaft 31, and the other end side of the link mechanism 26 is connected to one end side by a pin 32. Reference numeral 33 is a lever-side roller rotatably provided in the middle part of the link lever 30, 34 is a trip latch rotatably supported by the fixed shaft 19, and is engaged with the lever-side roller 33 and the upper end side is provided with a trip bar 35. Engaged. The trip bar 35 is trip-operated by a release type electromagnetic trip device X described later.

【0005】36,37は通電部の一部を構成する一対
の導体で、三個ずつ並設されている。38は一方の導体
36にそれぞれ固着された固定接点、39は各固定接点
38にそれぞれ接離される可動接点、40は各可動接点
39をそれぞれ固着した可動子、41は各可動子40の
端部をそれぞれ他方の導体37に接続するための可撓導
体、42は各可動子40を保持する可動子ホルダで、ピ
ン43により絶縁リンク23に連結されている。44は
各可動子40に一端がそれぞれ取付けられる接圧ばね
で、各他端はそれぞれ筐体1のバネ支持穴45により保
持されている。46は筐体1に形成した両ユニットケー
ス1a,1bの仕切壁、47は絶縁リンク23が貫通す
る仕切壁46の開口である。上記開口47は、図7,図
8に示すように接点のオン,オフ状態による絶縁リンク
23の移動のために大きい穴が必要となっている。
Reference numerals 36 and 37 denote a pair of conductors forming a part of the current-carrying portion, and three conductors are arranged in parallel. 38 is a fixed contact fixed to one of the conductors 36, 39 is a movable contact that is brought into contact with and separated from each fixed contact 38, 40 is a mover to which each movable contact 39 is fixed, and 41 is an end of each mover 40. Is a flexible conductor for connecting the other conductor 37 to the other conductor 37, and 42 is a mover holder for holding each mover 40, and is connected to the insulating link 23 by a pin 43. Reference numeral 44 is a contact pressure spring having one end attached to each mover 40, and the other end is held by a spring support hole 45 of the housing 1. 46 is a partition wall of both unit cases 1a and 1b formed in the housing 1, and 47 is an opening of the partition wall 46 through which the insulating link 23 penetrates. As shown in FIGS. 7 and 8, the opening 47 requires a large hole for moving the insulating link 23 depending on the ON / OFF state of the contact.

【0006】次に動作について説明する。投入バネ13
が放勢した図6のトリップ状態において、手動操作ハン
ドル3の手動操作によりラチェット5を、あるいはモー
タを駆動してラチェット6を反時計方向に回転させてカ
ム7を反時計方向に回転させると、チャージアーム9が
時計方向に回動するので、投入バネ13が蓄圧される。
こうして、図7に示すチャージ状態となる。
Next, the operation will be described. Closing spring 13
In the trip state shown in FIG. 6 in which the power is released, when the ratchet 5 is manually operated by the manual operation handle 3 or the motor is driven to rotate the ratchet 6 in the counterclockwise direction and rotate the cam 7 in the counterclockwise direction, Since the charging arm 9 rotates clockwise, the closing spring 13 accumulates pressure.
Thus, the charge state shown in FIG. 7 is obtained.

【0007】図7に示すチヤージ完了状態では、カム7
のカム側ローラ8によりクローズラッチ16の回動が阻
止され、クローズラッチ16のラッチ側ローラ17によ
りクローズラッチ18の回動が阻止され、このクローズ
ラッチ18はクローズバー20によりロックされる。こ
の図7の状態において、クローズバー20を時計方向に
回動操作すると、クローズラッチ18が時計方向に回転
し、これに伴なってクローズラッチ16が反時計方向に
回転するので、カム7のロックが解除されてカム7が反
時計方向に回転し、アーム側ローラ11がカム7の凹部
に落ち込むと、投入バネ13が放勢してチャージアーム
9が図8に示すように反時計方向に回転、はね上がる。
このようにチャージアーム9が図8のようにはね上がる
とき、チャージアーム9のカム面12にリンク側ローラ
28が当接するので、リンク機構26がチャージアーム
9のはね上げ力によって伸長し、図8に示すように接点
オンとなる。
When the charge is completed as shown in FIG.
The rotation of the close latch 16 is blocked by the cam side roller 8, and the rotation of the close latch 18 is blocked by the latch side roller 17 of the close latch 16, and the close latch 18 is locked by the close bar 20. In the state of FIG. 7, when the close bar 20 is rotated clockwise, the close latch 18 rotates clockwise, and the close latch 16 rotates counterclockwise accordingly, so that the cam 7 is locked. Is released and the cam 7 rotates counterclockwise, and when the arm side roller 11 falls into the recess of the cam 7, the closing spring 13 releases the charge arm 9 and the charge arm 9 rotates counterclockwise as shown in FIG. , Jumps up.
In this way, when the charge arm 9 jumps up as shown in FIG. 8, the link side roller 28 abuts on the cam surface 12 of the charge arm 9, so that the link mechanism 26 is extended by the repelling force of the charge arm 9, as shown in FIG. The contact is turned on.

【0008】図8のオン状態において、釈放形電磁引外
し装置Xによりトリップバー35を反時計方向に回動操
作させると、トリップラッチ34が反時計方向に回動す
るので、トリップラッチ34の凹部からレバー側ローラ
33が外れてリンクレバー30が時計方向に回動し、リ
ンク機構26が図6に示すように屈曲してオフ状態とな
る。以下繰り返しとなる。
In the ON state of FIG. 8, when the trip bar 35 is rotated counterclockwise by the release type electromagnetic trip device X, the trip latch 34 rotates counterclockwise. The lever side roller 33 is disengaged from the link lever 30, and the link lever 30 is rotated clockwise, and the link mechanism 26 is bent as shown in FIG. The following will be repeated.

【0009】[0009]

【発明が解決しようとする課題】上記のような従来の回
路遮断器では、仕切壁46の開口47と絶縁リンク23
との間にすき間ができるので、このすき間から遮断時に
アークが機構側に洩れ、相間短絡に至るという問題点が
あった。
In the conventional circuit breaker as described above, the opening 47 of the partition wall 46 and the insulating link 23 are provided.
Since there is a gap between the gap and the arc, the arc leaks to the mechanism side at the time of interruption from this gap, and there is a problem that an interphase short circuit occurs.

【0010】この発明はかかる問題点を解消するために
なされたもので、仕切壁の開口と絶縁リンクとの間のす
き間を塞ぐことにより遮断時にアークが貫通穴から機構
側に洩れないようにしてこのことによる相間短絡を防止
する信頼性の高い回路遮断器を得ることを目的とする。
The present invention has been made in order to solve such a problem, and by closing the gap between the opening of the partition wall and the insulating link, the arc is prevented from leaking from the through hole to the mechanism side at the time of interruption. It is an object of the present invention to obtain a highly reliable circuit breaker that prevents a short circuit between phases due to this.

【0011】[0011]

【課題を解決するための手段】この発明に係る回路遮断
器は、仕切壁の開口を塞いでいる仕切板の貫通穴に絶縁
リンクと接する薄肉部を設けて消弧部のアークが貫通穴
から機構側に洩れないようにしたものである。また、こ
の発明に係る回路遮断器は、仕切壁の開口を塞ぐために
絶縁リンクに貫挿装着した仕切板を設けて、消弧部のア
ークが仕切壁の開口から機構側に洩れないようにしたも
のである。
In the circuit breaker according to the present invention, the arc of the arc extinguishing portion is provided from the through hole by providing the through hole of the partition plate that closes the opening of the partition wall with a thin portion in contact with the insulating link. This is to prevent leakage to the mechanism side. Further, the circuit breaker according to the present invention is provided with a partition plate inserted through the insulating link to close the opening of the partition wall so that the arc of the arc extinguishing portion does not leak to the mechanism side from the opening of the partition wall. It is a thing.

【0012】[0012]

【作用】この発明においては、仕切板の貫通穴に設けた
薄肉部によって絶縁リンクとの間のすき間が塞がれるの
で、遮断時にアークが貫通穴から機構側に洩れることが
ない。また、この発明においては、アーク発生時の内部
圧力上昇により仕切板が絶縁リンクに沿って仕切壁の方
向に移動して仕切壁の開口が塞がれるので、遮断時にア
ークが貫通穴から機構側に洩れることがない。
In the present invention, the thin portion provided in the through hole of the partition plate closes the gap between the partition plate and the insulating link, so that the arc does not leak from the through hole to the mechanism side at the time of interruption. Further, in this invention, since the partition plate moves in the direction of the partition wall along the insulating link and the opening of the partition wall is closed due to the internal pressure rise at the time of arc generation, the arc is blocked from the through hole to the mechanism side when shutting off. Never leaks.

【0013】[0013]

【実施例】【Example】

実施例1.この発明の一実施例を図1〜図3について説
明する。図1は要部の断面図、図2は図1の仕切板を示
す断面図、図3は図2の仕切板を分解して示す斜視図で
あり、前記従来のものと同一または相当部分には同一符
号を付して説明を省略する。図において、50は仕切壁
46に昇降可能に装着した仕切板で、小さめの貫通穴5
0aを有する機構側仕切板50Aと、大きめの貫通穴5
0bを有する通電側仕切板50Bと、両仕切板50A,
50Bの間に一体化された薄肉仕切板50Cとで構成さ
れている。薄肉仕切板50Cには全縁から通電側に伸び
て屈曲してさらに小さい貫通穴50cを構成する折曲部
50Dが形成されている。
Example 1. An embodiment of the present invention will be described with reference to FIGS. 1 is a sectional view of a main part, FIG. 2 is a sectional view showing a partition plate of FIG. 1, and FIG. 3 is an exploded perspective view of the partition plate of FIG. Are denoted by the same reference numerals and description thereof will be omitted. In the figure, 50 is a partition plate that is mounted on the partition wall 46 so as to be able to move up and down.
0A mechanism side partition plate 50A and a large through hole 5
0b energizing side partition plate 50B, both partition plates 50A,
It is composed of a thin partition plate 50C integrated between 50B. The thin partition plate 50C is provided with a bent portion 50D that extends from the entire edge toward the energization side and bends to form a smaller through hole 50c.

【0014】このように仕切板50に絶縁リンク23と
接する薄肉部(薄肉仕切板50Cの折曲部50D)を設
けておくと、この薄肉部によって絶縁リンク23との間
のすき間が塞がれるので、遮断時にアークが貫通穴50
aから機構側に洩れることがない。
When the partition plate 50 is provided with a thin portion (the bent portion 50D of the thin partition plate 50C) in contact with the insulating link 23 in this manner, the thin portion closes the gap with the insulating link 23. Therefore, when breaking, the arc will penetrate through 50
There is no leakage from a to the mechanism side.

【0015】実施例2.また、各図に示すように仕切板
50を三枚構造としておくと薄肉部の形成が容易である
し、折曲部50Dを通電側に向けて折曲しておくと遮断
時の内圧力により折曲部50Dが絶縁リンク23に押圧
されるのでより効果的であるし、通電側の貫通穴50b
を大きくしておくと折曲部50Dの折曲が容易になる。
Example 2. Further, as shown in each drawing, if the partition plate 50 has a three-plate structure, it is easy to form a thin portion, and if the bent portion 50D is bent toward the energizing side, the internal pressure at the time of shutting off may cause Since the bent portion 50D is pressed by the insulating link 23, it is more effective, and the through hole 50b on the conducting side is provided.
If the angle is made larger, the bending of the bent portion 50D becomes easier.

【0016】実施例3.なお、図示省略するが仕切板5
0の折曲部50Dを機構側に向けて折曲しておくと、こ
れを嵌め込むときの作業性が良くなるものである。
Embodiment 3. Although not shown, the partition plate 5
If the 0 bending portion 50D is bent toward the mechanism side, the workability in fitting the bending portion 50D is improved.

【0017】実施例4.この発明のさらに異なる実施例
を図4,図5について説明する。図4は接点がオン状態
の要部断面図、図5は図4の仕切板を示す斜視図であ
り、前記従来のものと同一または相当部分には同一符号
を付して説明を省略する。図において、51は絶縁リン
ク23に貫挿装着した仕切板で、図5に示すように貫通
穴52を有している。この貫通穴52と絶縁リンク23
とのすき間は極小であるので、消弧室部のアークが洩れ
ることについては実用的に問題は無い。また、図4に示
す仕切壁46の開口47のδ1 およびδ2 寸法と、図5
に示す仕切板51のL1 およびL2 寸法との関係は、δ
1 <L1 およびδ2 <L2 となるように構成する。
Example 4. A different embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a cross-sectional view of a main part in which the contacts are in an ON state, and FIG. 5 is a perspective view showing the partition plate of FIG. In the figure, reference numeral 51 denotes a partition plate which is inserted into and mounted on the insulating link 23, and has a through hole 52 as shown in FIG. The through hole 52 and the insulating link 23
Since there is a minimum gap between and, there is no practical problem with leakage of the arc in the arc extinguishing chamber. In addition, the δ 1 and δ 2 dimensions of the opening 47 of the partition wall 46 shown in FIG.
The relationship with the L 1 and L 2 dimensions of the partition plate 51 shown in
It is configured so that 1 <L 1 and δ 2 <L 2 .

【0018】次に、図4にて消弧部にアークが発生した
時の仕切板51の動作について説明する。アークエネル
ギーによる内部圧力600が発生し、仕切板51がこの
圧力を受け、一点鎖線位置へと移動する。その結果、仕
切壁46に押圧されて止まり、開口47が塞がれ、遮断
時にアークが開口47から機構側に洩れることが防止で
きる。
Next, the operation of the partition plate 51 when an arc occurs in the arc extinguishing portion will be described with reference to FIG. Internal pressure 600 is generated by the arc energy, and the partition plate 51 receives this pressure and moves to the position indicated by the alternate long and short dash line. As a result, the partition wall 46 is pressed and stopped, the opening 47 is closed, and it is possible to prevent the arc from leaking from the opening 47 to the mechanism side when shutting off.

【0019】[0019]

【発明の効果】以上のように、この発明によれば仕切壁
の開口と絶縁リンクとの間のすき間を塞ぐことにより遮
断時にアークが開口から機構側に洩れないので、このこ
とによる相間短絡が防止できる信頼性の高いものが得ら
れるという効果を奏する。
As described above, according to the present invention, since the gap between the opening of the partition wall and the insulating link is closed, the arc does not leak from the opening to the mechanism side at the time of interruption. This has the effect of obtaining a highly reliable product that can be prevented.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例を示す要部断面図である。FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention.

【図2】図1の仕切板を示す断面図である。FIG. 2 is a cross-sectional view showing the partition plate of FIG.

【図3】図2の仕切板を分解して示す斜視図である。3 is an exploded perspective view of the partition plate of FIG. 2. FIG.

【図4】この発明の他の実施例を示す要部断面図であ
る。
FIG. 4 is a cross-sectional view of essential parts showing another embodiment of the present invention.

【図5】図4の仕切板の斜視図である。5 is a perspective view of the partition plate of FIG. 4. FIG.

【図6】従来のもののトリップ状態を示す側面断面図で
ある。
FIG. 6 is a side sectional view showing a trip state of a conventional device.

【図7】オフ状態を示す側面断面図である。FIG. 7 is a side sectional view showing an off state.

【図8】オン状態を示す側面断面図である。FIG. 8 is a side sectional view showing an ON state.

【図9】図6の要部のみを示す説明図である。9 is an explanatory diagram showing only the main part of FIG.

【図10】図7の要部のみを示す説明図である。10 is an explanatory diagram showing only the main part of FIG. 7. FIG.

【図11】図8の要部のみを示す説明図である。FIG. 11 is an explanatory diagram showing only a main part of FIG.

【図12】カムシャフトの側面図である。FIG. 12 is a side view of a camshaft.

【図13】メインシャフトの側面図である。FIG. 13 is a side view of the main shaft.

【符号の説明】[Explanation of symbols]

1 筐体 1a 通電部ユニットケース 1b 機構部ユニットケース 2 消弧室 7 カム 9 チャージアーム 13 投入バネ 21 メインシャフト 23 絶縁リンク 26 投入トグルリンク機構 46 仕切壁 47 開口 50 仕切板 50a 貫通穴 50C,50D 薄肉部 51 仕切壁 52 貫通穴 DESCRIPTION OF SYMBOLS 1 case 1a energizing unit case 1b mechanism unit case 2 arc extinguishing chamber 7 cam 9 charge arm 13 closing spring 21 main shaft 23 insulating link 26 closing toggle link mechanism 46 partition wall 47 opening 50 partition plate 50a through hole 50C, 50D Thin part 51 Partition wall 52 Through hole

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 蓄勢部を有する機構部ユニットと消弧部
を有する通電部ユニットとが仕切壁を置いて配置される
筐体を有し、前記仕切壁に前記両ユニットを連結する絶
縁リンクを貫挿する開口を有し、さらに前記絶縁リンク
に貫通穴により挿入されて前記絶縁リンクと共に移動す
るように前記仕切壁に摺動可能に装着される仕切板を有
する回路遮断器において、 前記仕切板の貫通穴に前記絶縁リンクと接する薄肉部を
設けて前記消弧部のアークが前記貫通穴から機構側に洩
れないようにしたことを特徴とする回路遮断器。
1. An insulating link having a casing in which a mechanism unit unit having a power storage unit and a current-carrying unit unit having an arc extinguishing unit are arranged with a partition wall between them, and connecting the both units to the partition wall. A circuit breaker having an opening through which a partition plate is slidably mounted on the partition wall so as to move together with the insulating link by being inserted into the insulating link by a through hole. A circuit breaker, characterized in that a through hole of the plate is provided with a thin portion in contact with the insulating link so that an arc of the arc extinguishing portion does not leak from the through hole to the mechanism side.
【請求項2】 薄肉部を貫通穴の全縁から通電側に伸び
るように屈曲させると共に絶縁リンクに密着させたこと
を特徴とする請求項1の回路遮断器。
2. The circuit breaker according to claim 1, wherein the thin portion is bent so as to extend from the entire edge of the through hole to the energizing side and is in close contact with the insulating link.
【請求項3】 蓄勢部を有する機構部ユニットと消弧部
を有する通電部ユニットとが仕切壁を置いて配置される
筐体を有し、前記仕切壁に前記両ユニットを連結する絶
縁リンクを貫挿する開口を有し、さらに前記通電部ユニ
ット側に設置されかつ前記絶縁リンクに貫通穴により挿
入されて前記絶縁リンクと共に移動される仕切板を有
し、かつこの仕切板がアークエネルギーによる内部圧力
により仕切壁側に移動して押圧され、消弧部のアークが
前記仕切壁の開口から機構側に洩れないようにしたこと
を特徴とする回路遮断器。
3. An insulating link which has a housing in which a mechanism unit unit having a power storage unit and an energization unit unit having an arc extinguishing unit are arranged with a partition wall between them, and which connects the both units to the partition wall. Has a partition plate that is installed on the side of the current-carrying unit and that is inserted into the insulating link by a through hole and is moved together with the insulating link. A circuit breaker characterized in that the arc of the arc extinguishing portion is prevented from leaking to the mechanism side from the opening of the partition wall by being moved and pressed by the internal pressure.
JP4159268A 1992-02-26 1992-06-18 Circuit breaker Expired - Fee Related JP2882186B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4159268A JP2882186B2 (en) 1992-02-26 1992-06-18 Circuit breaker

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4-8741 1992-02-26
JP874192 1992-02-26
JP4159268A JP2882186B2 (en) 1992-02-26 1992-06-18 Circuit breaker

Publications (2)

Publication Number Publication Date
JPH05303930A true JPH05303930A (en) 1993-11-16
JP2882186B2 JP2882186B2 (en) 1999-04-12

Family

ID=26343324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4159268A Expired - Fee Related JP2882186B2 (en) 1992-02-26 1992-06-18 Circuit breaker

Country Status (1)

Country Link
JP (1) JP2882186B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065396A1 (en) * 2002-01-31 2003-08-07 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
WO2004053911A1 (en) * 2002-12-09 2004-06-24 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
EP2541573A1 (en) * 2011-06-30 2013-01-02 Eaton Corporation Carrier link insulator for a circuit breaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065396A1 (en) * 2002-01-31 2003-08-07 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
EP1471553A1 (en) * 2002-01-31 2004-10-27 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
EP1471553A4 (en) * 2002-01-31 2005-04-06 Mitsubishi Electric Corp Air circuit breaker
WO2004053911A1 (en) * 2002-12-09 2004-06-24 Mitsubishi Denki Kabushiki Kaisha Air circuit breaker
EP2541573A1 (en) * 2011-06-30 2013-01-02 Eaton Corporation Carrier link insulator for a circuit breaker

Also Published As

Publication number Publication date
JP2882186B2 (en) 1999-04-12

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