JP2988761B2 - Switch - Google Patents
SwitchInfo
- Publication number
- JP2988761B2 JP2988761B2 JP3276614A JP27661491A JP2988761B2 JP 2988761 B2 JP2988761 B2 JP 2988761B2 JP 3276614 A JP3276614 A JP 3276614A JP 27661491 A JP27661491 A JP 27661491A JP 2988761 B2 JP2988761 B2 JP 2988761B2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- fixed contact
- fixed
- movable contact
- movable
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電流を開閉する開閉
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 switch for switching a current.
【０００２】[0002]
【従来の技術】図３は例えば特公平２−６１７０号公報
に示された従来の開閉器を示す部分断面図であり、図４
はその固定接触子を示すものである。なお図３の電磁接
触器は左右対称である。図において、１はプラスチック
で形成された取付台、２はこの取付台上に設けられケイ
素鋼板で積層された固定鉄心、３は固定鉄心２に対向し
て設置され同じくケイ素鋼板で積層された可動鉄心、４
は可動鉄心３と固定鉄心２とを引外しばね（図示せず）
に抗して吸着させる駆動力を付与する操作コイル、５は
プラスチックで形成され角窓５ａを有するクロスバー
で、その下端に上記可動鉄心３を保持している。６は上
記クロスバー５の角窓５ａに挿入されて押しばね７によ
り押圧保持されている可動接触子、６Ａはこの可動接触
子６の先端に設けられた可動接点、８は可動接触子６と
対向して設けられ電流を導通させる固定接触子で、８Ａ
はこの固定接触子８の先端に設けられた固定接点、８Ｂ
は固定接触子８の端子部である。９はこの端子部８Ｂに
螺着され電磁接触器本体を外部回路と接続するための端
子ねじ、１０は固定接触子８を取付けるベース、１１は
固定接触子の上面を覆うカバーである。2. Description of the Related Art FIG. 3 is a partial sectional view showing a conventional switch disclosed in Japanese Patent Publication No. 2-6170, for example.
Indicates the fixed contact. The electromagnetic contactor in FIG. 3 is symmetrical. In the drawing, 1 is a mounting base formed of plastic, 2 is a fixed iron core provided on the mounting base and laminated with a silicon steel plate, and 3 is a silicon steel plate mounted opposite to the fixed iron core 2 Iron core laminated with 4
Is a spring (not shown) that trips the movable core 3 and the fixed core 2
An operating coil 5 for applying a driving force to attract the magnetic core 5 is a crossbar made of plastic and having a square window 5a, and holds the movable iron core 3 at the lower end thereof. Reference numeral 6 denotes a movable contact which is inserted into the square window 5a of the cross bar 5 and is pressed and held by a pressing spring 7, 6A is a movable contact provided at the tip of the movable contact 6, and 8 is a movable contact 6 A fixed contact that is provided facing and conducts current,
Is a fixed contact provided at the tip of the fixed contact 8, 8B
Is a terminal portion of the fixed contact 8. Reference numeral 9 denotes a terminal screw which is screwed to the terminal portion 8B to connect the electromagnetic contactor body to an external circuit, 10 denotes a base on which the fixed contact 8 is mounted, and 11 denotes a base.
It is a cover that covers the upper surface of the fixed contact .
【０００３】次に動作について説明する。この従来の電
磁接触器において、操作コイル４を消磁すると、図示さ
れない引外しばねにより可動鉄心３が固定鉄心２より開
離し、クロスバー５が図３に示す状態となり、固定接点
８Ａと可動接点６Ａとが開離して固定接点８Ａと可動接
点６Ａとの間にアーク１２が生じるが、このアーク１２
は電流零点において消弧され、電流がしゃ断されること
になる。Next, the operation will be described. In this conventional electromagnetic contactor, when the operation coil 4 is demagnetized, the movable core 3 is separated from the fixed core 2 by a trip spring (not shown), and the crossbar 5 is brought into the state shown in FIG. Are separated to form an arc 12 between the fixed contact 8A and the movable contact 6A.
Is extinguished at the current zero point, and the current is cut off.
【０００４】[0004]
【発明が解決しようとする課題】ところで、従来の電磁
接触器においては、図５に示すように、アーク１２は、
可動接触子６の導通電流Ｉが作る磁界に基づく駆動力Ｆ
２と、固定接触子８の導通電流Ｉが作る磁界に基づく駆
動力Ｆ１とを受けるが、これらＦ１とＦ２の大きさがほ
ぼ同一で向きが逆であるため、アーク１２は可動接点６
Ａと固定接点８Ａの上で膠着することになる。従ってア
ーク１２の駆動が行なわれないので、従来の電磁接触器
においては、良好なしゃ断性能が得られず、また、アー
クの足が接点外に転移されないため、接点消耗が多いと
いう欠点を有していた。By the way, in the conventional electromagnetic contactor, as shown in FIG.
Driving force F based on the magnetic field generated by conduction current I of movable contact 6
2, but subjected to the driving force F 1 which conducts current I based on the magnetic field formed by the stationary contact piece 8, since the size of these F 1 and F 2 are reversed orientation substantially the same, the arc 12 is movable contact 6
A will stick on the fixed contact 8A. Therefore, since the arc 12 is not driven, the conventional electromagnetic contactor has a drawback that good breaking performance cannot be obtained, and that the foot of the arc is not transferred to the outside of the contact, so that the contact is consumed a lot. I was
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、固定接触子自体の形状を変更す
ることで、固定接点の消耗を低減することを目的とする
ものである。The present invention has been made to solve the above problems, and has as its object to reduce the consumption of fixed contacts by changing the shape of the fixed contacts themselves.
【０００６】[0006]
【課題を解決するための手段】この発明に係る開閉器
は、接点側が平板状の固定接触子の固定接点近傍に、こ
れと対向する可動接点側に突き出た、折り曲げにより形
成した突出部を設け、かつこの突出部と可動接点の間の
最短距離を固定接点全開時において、固定接点と可動接
点の間の最短距離よりも小さくしたものである。SUMMARY OF THE INVENTION A switch according to the present invention is formed by bending a contact point near a fixed contact of a fixed contact having a flat plate shape and protruding toward a movable contact side facing the fixed contact.
The protrusion forms provided, and during the fixed contacts fully open the shortest distance between the protruding portion and the movable contact is obtained by less than the shortest distance between the fixed contact and the movable contact.
【０００７】[0007]
【作用】この発明における開閉器では、可動接点と固定
接点の間に生じたアークが、可動接点と固定接触子の突
出部との間に転移するので、固定接点の消耗が低減され
る。In the switch according to the present invention, the arc generated between the movable contact and the fixed contact is transferred between the movable contact and the protrusion of the fixed contact, so that the consumption of the fixed contact is reduced.
【０００８】[0008]
【実施例】実施例１． 以下、この発明の一実施例を図について説明する。図に
おいて、６は可動接触子、６Ａは可動接点、８は接点側
８Ｄが平板状の固定接触子、８Ａはこの平板状の固定接
触子の先端に設けられた固定接点であり、８Ｃは固定接
触子８に折り曲げにより形成された突出部で、固定接点
８Ａの近傍に、可動接点６Ａ側へ突出するように設けら
れており、しかも固定接点全開時において、上記突出部
と可動接点の間の最短距離が、固定接点と可動接点の間
の最短距離よりも小さくなるように設定されている。な
お、上記以外の部分については図３に示す従来の開閉器
と同一であるので説明を省略する。[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. In the figure, 6 is a movable contact, 6A is a movable contact, 8 is a contact side
8D is a flat fixed contact, and 8A is this flat fixed contact.
Reference numeral 8C denotes a fixed contact provided at the tip of the contactor. Reference numeral 8C denotes a protrusion formed by bending the fixed contact 8, and is provided near the fixed contact 8A so as to protrude toward the movable contact 6A. Moreover during the fixed contacts fully opened, the shortest distance between the protruding portion and the movable contact is set to be smaller than the shortest distance between the fixed contact and the movable contact. The other parts are the same as those of the conventional switch shown in FIG.
【０００９】次に動作について説明する。従来と同様に
操作コイル４の消磁により、固定接点８Ａから可動接点
６Ａが開離すると、両接点間にアーク１２が形成される
が、このとき、固定接触子８の固定接点近傍に可動接点
側に突出する折り曲げによる突出部８Ｃが設けられてあ
り、しかも固定接点全開時において、この折り曲げ突出
部と可動接点の間の最短距離を、固定接点と可動接点の
間の最短距離よりも小さく設定しているので、固定接点
上のアーク１２の足が固定接触子８の突出部８Ｃの滑ら
かな突起表面に転移し、アーク１２はアーク１２Ａのよ
うになる。このように固定接点上のアークの足が固定接
触子の突出部の滑らかな突起表面に転移するので、遮断
性能と通電性能を低下させることなく、固定接点の消耗
が低減される。Next, the operation will be described. When the movable contact 6A is separated from the fixed contact 8A by the demagnetization of the operation coil 4 as in the conventional case, an arc 12 is formed between the two contacts. in the protruding portion 8C is Yes provided, moreover when the fixed contacts fully opened by bending projecting, the shortest distance between the bent projecting portion and the movable contact, smaller and than the shortest distance between the fixed contact and the movable contact Therefore, the foot of the arc 12 on the fixed contact slides on the protrusion 8C of the fixed contact 8.
The arc 12 is transferred to the surface of the kana projection , and the arc 12 becomes like an arc 12A. In this way, the arc foot on the fixed contact is transferred to the smooth protrusion surface of the protrusion of the fixed contact, so interruption
The wear of the fixed contacts is reduced without deteriorating the performance and the energizing performance .
【００１０】実施例２． なお、固定接触子８の端子側形状は図２のようにコ字状
形状であっても同じ効果を奏する。また、上記実施例で
は、接点をマグネットにより開閉する開閉器、すなわち
電磁接触器に適用した場合の例についてのみ述べている
が、例えば配線用しゃ断器のような開閉器にも適用でき
るのはいうまでもない。Embodiment 2 FIG. The same effect can be obtained even if the terminal side shape of the fixed contact 8 is U-shaped as shown in FIG . Further, in the above-described embodiment, only an example in which the present invention is applied to a switch that opens and closes a contact by a magnet, that is, an electromagnetic contactor is described. However, it is also applicable to a switch such as a circuit breaker for wiring. Not even.
【００１１】[0011]
【発明の効果】以上のようにこの発明によれば、平板状
の固定接触子の固定接点近傍に可動接点側に折り曲げに
より突出する突出部を設けるとともに、固定接点全開時
において、上記突出部と可動接点の間の最短距離を、固
定接点と可動接点の間の最短距離よりも小さくしたこと
により、遮断性能と通電性能を低下させることなく、固
定接点の消耗を低減できるという効果がある。As described above, according to the present invention, a flat plate
The folding the movable contact side to the fixed contact near the fixed contact
Provided with a protrusion that more projects, during the fixed contacts fully opened, the shortest distance between the protruding portion and the movable contact is made smaller than the shortest distance between the fixed contact and the movable contact, interruption performance and power performance There is an effect that the consumption of the fixed contact can be reduced without lowering the power consumption.
【図１】この発明の一実施例による開閉器の要部側面図
である。FIG. 1 is a side view of a main part of a switch according to an embodiment of the present invention.
【図２】この発明の他の実施例による固定接触子を示す
側面図である。FIG. 2 is a side view showing a fixed contact according to another embodiment of the present invention.
【図３】従来の開閉器を示す部分断面側面図である。FIG. 3 is a partial sectional side view showing a conventional switch.
【図４】図３の固定接触子を示す側面図ａと平面図ｂで
ある。FIG. 4 is a side view a and a plan view b showing the fixed contact of FIG. 3;
【図５】従来の開閉器の動作説明図である。FIG. 5 is a diagram illustrating the operation of a conventional switch.
６ 可動接触子 ６Ａ 可動接点 ８ 固定接触子 ８Ａ 固定接点 ８Ｃ 折曲げ突出部 ８Ｄ 接点側 6 Movable contact 6A Movable contact 8 Fixed contact 8A Fixed contact 8C Bend projection 8D Contact side
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−87712（ＪＰ，Ａ) 特開 昭60−49527（ＪＰ，Ａ) 特開 昭57−136714（ＪＰ，Ａ) 特開 昭59−117015（ＪＰ，Ａ) 特開 平２−239524（ＪＰ，Ａ) 特開 昭59−157919（ＪＰ，Ａ) 実開 昭62−62742（ＪＰ，Ｕ) 実開 昭61−51648（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01H 9/36 - 9/38 H01H 73/18 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-87712 (JP, A) JP-A-60-49527 (JP, A) JP-A-57-136714 (JP, A) JP-A-59-136714 117015 (JP, A) JP-A-2-239524 (JP, A) JP-A-59-157919 (JP, A) JP-A 62-62742 (JP, U) JP-A 61-51648 (JP, U) (58) Field surveyed (Int.Cl. 6 , DB name) H01H 9/36-9/38 H01H 73/18
Claims (1)
の固定接点に対向して配置され上記固定接触子と反対方
向に延びる可動接触子に接合された可動接点とを備え、
上記固定接触子の固定接点近傍に、可動接点側に突出す
る突出部を設けるとともに、固定接点全開時において、
上記突出部と可動接点の間の最短距離を、固定接点と可
動接点の間の最短距離よりも小さく設定した開閉器にお
いて、上記固定接触子の接点側は平板状に形成され、こ
の平板状固定接触子を折り曲げることにより突起を形成
したことを特徴とする開閉器。1. A fixed contact joined to a fixed contact, and a movable contact joined to a movable contact disposed opposite to the fixed contact and extending in a direction opposite to the fixed contact ,
In the vicinity of the fixed contact of the fixed contact, a protruding portion protruding toward the movable contact is provided, and when the fixed contact is fully opened,
A switch in which the shortest distance between the protrusion and the movable contact is set smaller than the shortest distance between the fixed contact and the movable contact
The contact side of the fixed contact is formed in a flat plate shape.
Forming projections by bending flat fixed contacts
Switch, characterized in that the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3276614A JP2988761B2 (en) | 1991-09-26 | 1991-09-26 | Switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3276614A JP2988761B2 (en) | 1991-09-26 | 1991-09-26 | Switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0589738A JPH0589738A (en) | 1993-04-09 |
| JP2988761B2 true JP2988761B2 (en) | 1999-12-13 |
Family
ID=17571900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3276614A Expired - Fee Related JP2988761B2 (en) | 1991-09-26 | 1991-09-26 | Switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2988761B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114360945A (en) * | 2015-03-25 | 2022-04-15 | 敬德强 | Large-current reed type switch contact structure and large-current reed switch application structure |
-
1991
- 1991-09-26 JP JP3276614A patent/JP2988761B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0589738A (en) | 1993-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2988761B2 (en) | Switch | |
| US4560847A (en) | Power switch | |
| EP0124620A1 (en) | Switch | |
| JP2988760B2 (en) | Switch | |
| JPH0329848Y2 (en) | ||
| JPS59111210A (en) | Switch | |
| JPH0447925B2 (en) | ||
| JPH026169B2 (en) | ||
| JPH0787060B2 (en) | Power switch | |
| JP2562867B2 (en) | Switch | |
| JPH05114336A (en) | Switch | |
| JPH0127542Y2 (en) | ||
| JPH0217887B2 (en) | ||
| JPH0454325B2 (en) | ||
| JPS63264829A (en) | Switchgear | |
| JPS63252327A (en) | Switch | |
| JPH0512948A (en) | Switch device | |
| JPH058537B2 (en) | ||
| JPS641732Y2 (en) | ||
| JPH026170B2 (en) | ||
| JPS59103225A (en) | Switch | |
| JPS63108623A (en) | Switch | |
| JPH0664961B2 (en) | Switch | |
| JPH0586008B2 (en) | ||
| JPH0610942B2 (en) | Power switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |