JPS5848331A - Switching mechanism - Google Patents
Switching mechanismInfo
- Publication number
- JPS5848331A JPS5848331A JP14619081A JP14619081A JPS5848331A JP S5848331 A JPS5848331 A JP S5848331A JP 14619081 A JP14619081 A JP 14619081A JP 14619081 A JP14619081 A JP 14619081A JP S5848331 A JPS5848331 A JP S5848331A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- arm
- contact arm
- movable contact
- fixed 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.)
- Pending
Links
Landscapes
- Breakers (AREA)
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】
本発明は可動接点の保持構造を改良した開閉機構に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing mechanism with an improved holding structure for movable contacts.
一般にたとえば単相３線式回路しゃ断器のような機器に
採用される開閉機構のコンタクトアームはその組立てに
際して絶縁カラー挿通用の透孔とメインシャフト挿通用
の透孔とのそれぞれ孔径の異たる２′！４類を必要にす
るとともに導体を接続したコンタクトアームはヒれを支
持すゐ磁気フレーム自体が充電部となる欠点を有してい
る。Generally, when assembling a contact arm of an opening/closing mechanism used in equipment such as a single-phase three-wire circuit breaker, a through-hole for inserting an insulating collar and a through-hole for inserting a main shaft have two hole diameters that are different from each other. ′! A contact arm that requires type 4 and has a conductor connected has the drawback that the magnetic frame that supports the fin itself becomes a live part.
また特開昭５４−７２４７４号公報に開示されたように
コンタクトアームの基部を絶縁材製可動接点回動台の上
部ＫｊｌＥ着したものにあってはその固着が回動台の下
方からねじによって行なわれているので組立てが困難で
作業性に劣る欠点を有している。In addition, as disclosed in Japanese Patent Application Laid-Open No. 54-72474, in which the base of the contact arm is fixed to the upper part of a movable contact rotating table made of an insulating material, the fixing is done by screws from below the rotating table. It has the disadvantage of being difficult to assemble and having poor workability.
本発明は上記欠点を除去するためなされたもので、コン
タクトアームと、コンタクトアー＾ホルダとの組立にね
じ類を使用することなく組立容易で、しかも安価に得ら
れる回路しゃ断器を提供することを目的とする。The present invention has been made in order to eliminate the above-mentioned drawbacks, and aims to provide a circuit breaker that can be easily assembled without using screws for assembling a contact arm and a contact arm holder, and can be obtained at a low cost. purpose.
以下１本発明の詳細を実施例にりいて図面を参照して説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be explained below with reference to embodiments and drawings.
（１）はたとえば回路し中断器の固定接点で、電源側の
固定接点板（２）上に取着されている。（３）はフレ−
五で、電源側端子（４）と負荷側端子（５）との間で磁
性金属材で一体に形成されている。またこのフレーム（
３）の一方にけ両側に軸受片（））を立設した軸受部（
６）が設けられている。（８）は絶縁材によ抄成形され
たコンタクトアームホルダで、一端に支軸（９） 他端
には前面および下面開口の隔室ａ１を設け、かつ隔室Ｏ
Ｉ両端部透孔ａυと、軸受片（））ＩＣ穿設された取付
は孔（７）とを枢支して回動可能に設けられている。(1) is a fixed contact of a circuit interrupter, for example, and is mounted on a fixed contact plate (2) on the power supply side. (3) is a frame.
5, the power supply side terminal (4) and the load side terminal (5) are integrally formed of a magnetic metal material. Also this frame (
3) Bearing part () with bearing pieces () erected on both sides
6) is provided. (8) is a contact arm holder made of insulating material and has a support shaft (9) at one end and a compartment a1 with front and bottom openings at the other end.
The through hole aυ at both ends of I and the mounting hole (7) in which the IC is bored are rotatably provided.
（ロ）はコンタクトアームで、コンタクトアームホルダ
（８）の支軸（９）に嵌合する保合孔０１を有して回動
可能に設けられその先端には前記固定接点（１）Ｋ対向
する可動接点ｏ４が設けられ、かつ隔室（９）に臨む基
端部側には下方へ突出した突起部（ト）が設けられてい
る。（至）はフレーム（３）の軸受部（６）と、突起部
（イ）との間に介在するスプリングである。そしてこの
スプリングＱ１社コンタクトアームホルダ（８）とと％
ＩＣコンタクトアームＯηをその先端の可動接点（ロ）
が常時固定接点（１）から離隔する方向へ弾性的に偏倚
するものである。αηは電磁コイル（至）の一端から導
出した導体で、コンタクトアーム（ロ）の基体部にはん
る。＠はハンドル曽、リンク機構■郷を備えた操作機構
、轡は異常検出装置を示す。(B) is a contact arm, which is rotatably provided with a retaining hole 01 that fits into the support shaft (9) of the contact arm holder (8), and whose tip is opposite the fixed contact (1) K. A movable contact o4 is provided, and a protrusion (T) projecting downward is provided on the base end side facing the compartment (9). (to) is a spring interposed between the bearing portion (6) of the frame (3) and the protrusion (A). And this spring Q1 company contact arm holder (8) and %
Connect the IC contact arm Oη to the movable contact (b) at its tip.
is always elastically biased in a direction away from the fixed contact (1). αη is a conductor led out from one end of the electromagnetic coil (to), and is attached to the base of the contact arm (b). ＠ indicates a handle, an operating mechanism equipped with a link mechanism ■, and 轡 indicates an abnormality detection device.
次に組立てならびに作動について述べる。まず組立てに
際してはコンタクトアームホルダ（８）の支軸（９）Ｋ
コンタクトアーム（２）の保合孔斡を嵌合することによ
シ組合わせ、かつその基端部を隔室部内に位置させる１
次にコンタクトアームホルダ（８）の透孔（ロ）と、軸
受部（６）の軸受片（７） Ｋ設けられた取付は孔（６
とを枢着するとと−にスプリング輔を軸受部（６）とコ
ンタクトアーム（２）の突起部■と０ｎＪＩＫ介在させ
ればよい１次に回路を閉成する場合は操作機構轡のハン
ドル軸を反時計方向へ回動してリンク機構（２）を介し
てコンタクトアーム（ロ）とコンタクドアー五ホルダ（
８）とを押し下げて可動接点も◆と固定接点（１）とを
当接させる。そしてリンク機構＠によってその閉成状態
が保持されているが、いったん回路中にたとえｄ過電流
が流れると異常検出装置轡が作動してリンク機構四の保
持が解かれかつスプリング（２）の弾性復帰力によって
コンタクトアームＱ２およびコンタクトアームホルダ（
８）が押し上げられ可動接点（ロ）は固定接点（１）か
ら離間して開路状態とする仁とができる。Next, assembly and operation will be described. First, when assembling, the support shaft (9) K of the contact arm holder (8)
1. Assemble the contact arm (2) by fitting the retaining hole and position the base end within the compartment 1
Next, install the through hole (B) of the contact arm holder (8) and the bearing piece (7) K of the bearing part (6).
When the and are pivotally connected, the spring can be interposed between the bearing part (6) and the protruding part of the contact arm (2). First, when closing the circuit, insert the handle shaft of the operating mechanism Rotate counterclockwise to connect the contact arm (b) and contact door holder (5) via the link mechanism (2).
8) Press down to bring the movable contact ◆ into contact with the fixed contact (1). The closed state is maintained by the link mechanism (4), but once an overcurrent flows in the circuit, the abnormality detection device (4) is activated and the link mechanism (4) is released from its hold and the elasticity of the spring (2) Contact arm Q2 and contact arm holder (
8) is pushed up, and the movable contact (B) is separated from the fixed contact (1), creating an open state.
なお、異常検出装置轡は過電流によって作動したが漏電
電流によって作動するようにしてもよい。Although the abnormality detection device 轡 was activated by overcurrent, it may be activated by leakage current.
また３相の場合、両側の２極には開閉機構のみを設け、
支軸で連結して３極を開閉することもできる。In addition, in the case of 3-phase, only the opening/closing mechanism is provided for the two poles on both sides.
It is also possible to open and close three poles by connecting them with a support shaft.
本発明は以上詳述したように電源側忙配設された固定接
点と、この接点と接離する可動接点を有しかつ接続導体
を付設して回動可能に配設され九コンタクトアームと、
一端にアーム支承用の支軸を設は他端にはアームの基端
部が位置する隔室を有して負荷側の軸受部に支持される
コンタクトアームホルダと、上記コンタクトアームと軸
受部との間に配設されて可動接点を固定接点から離隔す
る方向に弾性的に偏倚するコイルスプリングとを備えた
開閉機構であるから、コンタクドアーふとコンタクトア
ームホルダとの組合わせに際してねじ類を使用し危いの
で組立てが容易となり、コイルスプリングも安価なもの
を使用できる等の利点°を有する。As described in detail above, the present invention has a fixed contact disposed on the power supply side, a movable contact that makes contact with and separates from the contact, and a nine contact arm rotatably disposed with a connecting conductor attached.
A contact arm holder having a support shaft for supporting the arm at one end and a compartment in which the proximal end of the arm is located at the other end and supported by the bearing section on the load side, and the contact arm and the bearing section. The opening/closing mechanism is equipped with a coil spring disposed between the contact arm holder and the coil spring that elastically biases the movable contact in a direction separating the movable contact from the fixed contact. It has the advantage of being easy to assemble and being able to use inexpensive coil springs.
第１図は本発明の開閉機構を適用した回路しゃ断器の縦
断面図、第２図は開閉機構の分解斜視図。
第３図は同じく組立時の断面図である。
（１）・・・・・固定接点
（８）−・・コンタクトアームホルダ
（９）・・・・・支軸 ａ〔・・・・・隔室（６）
・・・・・ コンタクトアーム （ロ）・・・・・可
動接点（ト）−・・・・スプリング （ロ）・・・
・・導 体代理人 弁理士 井 上 −男FIG. 1 is a longitudinal sectional view of a circuit breaker to which the opening/closing mechanism of the present invention is applied, and FIG. 2 is an exploded perspective view of the opening/closing mechanism. FIG. 3 is also a sectional view when assembled. (1)... Fixed contact (8) - Contact arm holder (9)... Support shaft a [... Compartment (6)
... Contact arm (B) ... Movable contact (G) --- Spring (B) ...
・・Conductor agent Patent attorney Inoue - Male
Claims (1)
を有して回動可能に形成されたコンタクトアームと、 負荷側に配設された絶縁材からなり一端に上記アーム支
承用の支軸を設け、他端には上記アームの基端部が位置
する隔室を設けたコンタクトアームホルダと、 上記コンタクトアームと軸受部との間に配設され上記可
動接点を固定接点から離隔する方向に弾性的に偏倚する
コイルスプリングと、 を具備したことを特徴とする開閉機構。[Scope of Claims] A fixed contact disposed on the power supply side, a contact arm provided with a movable contact that connects and separates from the fixed contact and rotatably formed with a connecting conductor, and on the load side. a contact arm holder made of an insulating material and having a support shaft for supporting the arm at one end and a compartment in which the proximal end of the arm is located at the other end; and the contact arm and the bearing part. and a coil spring disposed between the movable contact and the fixed contact to elastically bias the movable contact in a direction separating the movable contact from the fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14619081A JPS5848331A (en) | 1981-09-18 | 1981-09-18 | Switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14619081A JPS5848331A (en) | 1981-09-18 | 1981-09-18 | Switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5848331A true JPS5848331A (en) | 1983-03-22 |
Family
ID=15402165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14619081A Pending JPS5848331A (en) | 1981-09-18 | 1981-09-18 | Switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02172124A (en) * | 1988-12-24 | 1990-07-03 | Mitsubishi Electric Corp | Circuit breaker |
| JPH0689072A (en) * | 1992-09-08 | 1994-03-29 | Shimokuni:Kk | Discount seal and method for using the same |
-
1981
- 1981-09-18 JP JP14619081A patent/JPS5848331A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02172124A (en) * | 1988-12-24 | 1990-07-03 | Mitsubishi Electric Corp | Circuit breaker |
| JPH0689072A (en) * | 1992-09-08 | 1994-03-29 | Shimokuni:Kk | Discount seal and method for using the same |
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