JPS62287535A - Switch - Google Patents
SwitchInfo
- Publication number
- JPS62287535A JPS62287535A JP13020286A JP13020286A JPS62287535A JP S62287535 A JPS62287535 A JP S62287535A JP 13020286 A JP13020286 A JP 13020286A JP 13020286 A JP13020286 A JP 13020286A JP S62287535 A JPS62287535 A JP S62287535A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- contact
- switch
- nozzle
- 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.)
- Pending
Links
- 239000000696 magnetic material Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims 1
- 230000004907 flux Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は電気回路の開閉器に関するものであり、特に
、接触子の開離時に発生するアークを駆動するためにア
ークに対して交差磁束を形成するための磁石を備えた開
閉器に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a switch for an electric circuit, and in particular, a switch for driving an arc generated when a contactor is opened. The present invention relates to a switch equipped with a magnet for forming a cross magnetic flux to an arc.
第３図は実開昭５９−７７７４２号公報に示された従来
の開閉器の開離状態を示す部分縦断面図であり、第４図
は第３図のｆｆ−１ｆ線による断面図である。FIG. 3 is a partial vertical sectional view showing the open state of the conventional switch disclosed in Japanese Utility Model Application Publication No. 59-77742, and FIG. 4 is a sectional view taken along the ff-1f line in FIG. 3. .
図において、符号（１）は第１の端子板、（２）は第１
の端子板（１）に取り付けられている第１の接触子であ
る固定接触子、（３）は固定接触子（２）に対して接離
する第２の接触子である可動接触子、（４）は可動接触
子（３）に摺接する集電子、（５）は集電子（４）が取
り付けられている第２の端子板、（３）は一方の端部が
揖１の端子板（りに固着され、他方の端部に開口部を有
する外筒、（７）は外筒（３）の上記開口部に固着され
たＰＬＲ物から成るノズルであって、可動接触子（３）
が挿入されて摺動可能に形成されている貫通孔（７ａ）
を有している。（８）はノズル（７）に設置されている
環状の磁石、（９）は外筒（６１に囲まれて形成されて
いる絶縁消弧ガスの貯留室、（９ａ）は貯留室（９）の
絶縁消弧ガスが出入りする貯留室口、（１０）は可動接
触子（３）が固定接触子（２）から開離するときに発生
するアークで、（Ｎ）は円筒状ｌこ形成され、その一端
面か外筒（３）の外表面に取り付けられているシリンダ
、（’２）は可動接触子（５）に取り付けられてシリン
ダ（１１）の内周面に槽液するピストン、（１５）はシ
リンダ（１２）と外筒（３）の底面とに囲まれて形成さ
れ、可動接触子（３）の矢印Ａ方向の移動時に形成され
る負圧室である。In the figure, symbol (1) is the first terminal board, and (2) is the first terminal board.
(3) is a fixed contact which is a first contact attached to the terminal plate (1), a movable contact which is a second contact which moves toward and away from the fixed contact (2), ( 4) is a current collector that slides into contact with the movable contactor (3), (5) is a second terminal board to which the current collector (4) is attached, and (3) is a terminal board (1) with one end. (7) is a nozzle made of a PLR material fixed to the opening of the outer cylinder (3), and the movable contactor (3)
A through hole (7a) into which is inserted and formed to be slidable.
have. (8) is an annular magnet installed in the nozzle (7), (9) is an insulated arc-extinguishing gas storage chamber surrounded by the outer cylinder (61), and (9a) is a storage chamber (9). (10) is the arc generated when the movable contact (3) separates from the fixed contact (2), and (N) is the cylindrical arc-extinguishing gas. , a cylinder attached to one end surface thereof or the outer surface of the outer cylinder (3), ('2) is a piston attached to the movable contactor (5) and flowing into the inner peripheral surface of the cylinder (11); 15) is a negative pressure chamber surrounded by the cylinder (12) and the bottom surface of the outer cylinder (3), and is formed when the movable contact (3) moves in the direction of arrow A.
次にこの従来装置の動作ｆこついて説明する。Next, the operation of this conventional device will be explained.
この開閉器が投入状態で、電流が第１の端子板（１）か
ら固定接触子（２）へ、そして可動接触子（３）から集
電子（４）を介して第２の端子板（５）へ流れている場
合、可動接触子（３）が駆動機構（図示しない）によっ
て矢印Ａ方向へ駆動されると、可動接触子（３）は固定
接触子（２）から開離し、内接触子（２）＜３）間ｌこ
アーク（１０）が発生する。When this switch is in the closed state, current flows from the first terminal plate (1) to the fixed contact (2), and from the movable contact (3) to the second terminal plate (5) via the current collector (4). ), when the movable contact (3) is driven in the direction of arrow A by a drive mechanism (not shown), the movable contact (3) separates from the fixed contact (2), and the inner contact An arc (10) occurs between (2) and <3.
一方、環状の磁石（８）は軸方向に磁化されており、貯
留室口（９ａ）では半径方向成分を含む磁束（φ）を生
じる。この磁束（φ）によりアーク（１ｏ）は周方向に
カを受け、回転アークとなって半径方向に引き延ばされ
ることにより、アーク（１ｏ）によるガス加熱効果を受
けて、貯留室（９）内のガス圧力を上昇させる。On the other hand, the annular magnet (8) is magnetized in the axial direction, and generates a magnetic flux (φ) including a radial component at the storage chamber opening (9a). The arc (1o) receives force in the circumferential direction due to this magnetic flux (φ), becomes a rotating arc, and is elongated in the radial direction, thereby receiving the gas heating effect of the arc (1o) and moving inside the storage chamber (9). increase the gas pressure.
次に、アーク発生後、電流のピーク時を過ぎて電流が零
になる過程で、絶縁消弧ガスの吹付けによってアークは
消弧に至らしめられる。Next, after the arc occurs, the arc is extinguished by spraying insulating arc-extinguishing gas while the current reaches its peak and reaches zero.
なお、ピストン（１２）が可動接触子（３）と共にシリ
ンダ（１１）内を矢印Ａ方向に移動することによって、
負圧室（１３）内の圧力を負圧にし、これによって、小
ｉａｃ流しゃ断時にはガス圧力の上昇しにくい貯留室（
９）からの絶縁消弧ガスの流出を補足して、小電流しゃ
断時における消弧を補助するものである。Note that by moving the piston (12) together with the movable contact (3) inside the cylinder (11) in the direction of arrow A,
The pressure inside the negative pressure chamber (13) is made negative, thereby creating a storage chamber (13) in which gas pressure is unlikely to rise when the small IAC flow is interrupted.
9) to supplement the outflow of insulating arc-extinguishing gas and assist in arc-extinguishing when a small current is cut off.
上記のような従来の磁石を設けた開閉器においては、電
流による周方向の磁場が形成される。この周方向の磁場
中に置かれた上記環状の磁石にはうず電流積が生ずるの
で、上記磁石は発熱し劣化するという問題点を有してい
た。In a conventional switch provided with a magnet as described above, a circumferential magnetic field is formed by an electric current. Since an eddy current product occurs in the annular magnet placed in this circumferential magnetic field, the magnet has the problem of generating heat and deteriorating.
この発明は上記のような問題点を解決するためになされ
たもので、うず電流積の発生を少なくして磁石の発熱を
低減し得る磁石を備えて磁力の安定化と長寿命化を計っ
た開閉器を得ることを目的とする。This invention was made to solve the above problems, and was designed to stabilize the magnetic force and extend the lifespan by providing a magnet that can reduce the generation of eddy current products and reduce the heat generation of the magnet. The purpose is to obtain a switch.
この発明に係る開閉器は、ノズルに設けられている磁石
を周方向に対して複数個に分割するとともにこの分割さ
れた磁石間に周方向に非磁性体を介装して設けたもので
ある。In the switch according to the present invention, the magnet provided in the nozzle is divided into a plurality of pieces in the circumferential direction, and a non-magnetic material is interposed between the divided magnets in the circumferential direction. .
この発明における非磁性体が間に介装されているととも
に環状に置かれている複数個の磁石にあっては、その周
方向の磁気抵抗が高いので、第１の接触子と第２の接触
子との間を流れる交流電流により、磁石を貫く磁束は少
なくなり、従って、うず電流積も少なくなって、その結
果、磁石の発熱も低下する。In the plurality of magnets arranged in an annular manner with a non-magnetic material interposed therebetween, the magnetic resistance in the circumferential direction is high, so that the first contact and the second contact Due to the alternating current flowing between the magnet and the magnet, the magnetic flux passing through the magnet is reduced, and therefore the eddy current product is also reduced, and as a result, the heat generation of the magnet is also reduced.
以下、この発明をその実施例を示す図に基づいて説明す
る。Hereinafter, the present invention will be explained based on figures showing embodiments thereof.
第１図は、この発明の第１実施例である開閉器の磁石の
設置状態を示す断面図であり、第２図は第２実施例であ
る磁石の設置状態を示す断面図であって、符号（７）は
従来装置におけるノズルと同等のものである。FIG. 1 is a cross-sectional view showing the installed state of the magnet of a switch according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the installed state of the magnet of the switch according to the second embodiment, The symbol (7) is equivalent to the nozzle in the conventional device.
図において、符号（２１ａ）（２１ｂ）（２１ｃ）（２
１ｄ）は複数個、この実施例では４個に分割されてノズ
ル（７）に設けられている磁石、（２２）は各磁石（ｚ
ｌａ）〜（ｚｌｄ）間に介装して設けられている非磁性
体から成るスペーサである。In the figure, symbols (21a) (21b) (21c) (2
1d) is a plurality of magnets, in this embodiment, it is divided into four pieces and is provided in the nozzle (7), and (22) is a magnet for each magnet (z
This is a spacer made of a non-magnetic material and provided between la) and (zld).
この発明の開閉器における磁石は、上記のように構成さ
れているので、通電時あるいは大電流アークの電流がつ
くる周方向の磁束は磁気抵抗の少ない磁石に集中して磁
束は多くなるが、第１図のように周方向に分割している
磁石が相互に接触しないように、例えば、テフロンのよ
うな非磁性体のノズル内に設けておくと、周方向の磁気
抵抗は増加し、従って、例えば交流電流によって磁石（
２１）内部を貫く磁束は少なくなり、その結果、うず電
流積の発生も小さくなって、磁石の発熱を減少させるこ
とができ、磁力の安定化と長寿命化によって、安定した
消弧性能が得られる。Since the magnet in the switch of the present invention is constructed as described above, the magnetic flux in the circumferential direction created by the current of a large current arc when energized is concentrated in the magnet with low magnetic resistance, and the magnetic flux increases. For example, if the magnets divided in the circumferential direction as shown in Figure 1 are installed in a nozzle made of a non-magnetic material such as Teflon so that they do not come into contact with each other, the magnetic resistance in the circumferential direction increases, and therefore, For example, a magnet (
21) The magnetic flux penetrating the inside is reduced, and as a result, the generation of eddy current product is also reduced, reducing the heat generation of the magnet, and by stabilizing the magnetic force and extending its life, stable arc extinguishing performance is achieved. It will be done.
なお磁石の材質として、例えば、フェライト系、アルニ
コ系、サマリウム系希土類およびネオジウム・鉄・ボロ
ン系磁石などがあるが、磁力の強い磁石であればより消
弧効果は大きい。The material of the magnet includes, for example, ferrite, alnico, samarium, rare earth, and neodymium/iron/boron magnets, but a magnet with strong magnetic force will have a greater arc extinguishing effect.
上記第１実施例では、周方向に分割した磁石（２１ａ）
〜（２１ｄ）が相互に接触しないよう１こノズル内に埋
設した場合を示したが、第２図に示す第２実施例のよう
に周方向に分割した磁石（２１ａ）〜（２１ｄ）のそれ
ぞれの間にスペーサ（２２）を介装して固着して設けて
もよく、この場合も上記第１実施例と同様の効果を奏す
る。In the first embodiment, the magnet (21a) is divided in the circumferential direction.
Although the case where the magnets (21d) are embedded in one nozzle so as not to contact each other is shown, each of the magnets (21a) to (21d) divided in the circumferential direction as in the second embodiment shown in FIG. A spacer (22) may be interposed and fixed therebetween, and in this case as well, the same effect as in the first embodiment can be achieved.
なお、上記スペーサ（２２）の材質としては、非磁性体
であれば金属又は非金属の固体、あるいは、空隙のよう
な気体のいづれでも良く、更には又、これらの組合せに
よってもよい。The material of the spacer (22) may be any non-magnetic metal or non-metallic solid, or a gas such as a void, or a combination thereof.
上記のように、この発明によれば、ノズルに設けられて
いる磁石を複数個に分割するとともに、分割された各磁
石間に周方向に非磁性体を介在させているので、周方向
の磁気抵抗は増加して磁石内を貫く磁束は少なくなり、
従って、うず電流積の発生も低下して発熱も減少し、そ
の結果、磁力も安定し寿命も長くなる開閉器が得られる
効果を有している。As described above, according to the present invention, the magnet provided in the nozzle is divided into a plurality of pieces, and a non-magnetic material is interposed in the circumferential direction between each divided magnet, so that the magnet in the circumferential direction is The resistance increases and the magnetic flux passing through the magnet decreases.
Therefore, the generation of eddy current product is reduced, and heat generation is also reduced. As a result, a switch with stable magnetic force and a longer life can be obtained.
第１図はこの発明の第１実施例による開閉器に設けられ
ている磁石を有するノズルの横断面図、第２図はこの発
明の第２実施例による開閉器に設けられている磁石を有
するノズルの横断面図、第３図は従来の開閉器の開離状
態を示１一部分縦断面図、第４図は第６図のＷ−１ｆ線
による断面図である。
図において、（２）・・第１の接触子（固定接触子）、
（３）・・第２の接触子（可動接触子） 、（６Ｊ・・
外筒、（７） −−ノズル、（８にｚｌａ）（ｚ１ｂＸ
２１ｃＸｚ１ｄ） −−磁石、（９）・・貯留室、（９
ａ）・・貯留室口、（１０）・・アーク、（２２）・・
スペーサ。
なお、各図中、同一符号は同−又は相当部分を示す。FIG. 1 is a cross-sectional view of a nozzle having a magnet provided in a switch according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of a nozzle having a magnet provided in a switch according to a second embodiment of the present invention. FIG. 3 is a partial longitudinal sectional view showing a conventional switch in an open state, and FIG. 4 is a sectional view taken along line W-1f in FIG. 6. In the figure, (2)...first contact (fixed contact),
(3)...Second contactor (movable contactor), (6J...
Outer cylinder, (7) -- Nozzle, (8 to zla) (z1bX
21cXz1d) --Magnet, (9)...Storage chamber, (9
a)...Storage chamber entrance, (10)...Arc, (22)...
Spacer. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (4)
作をする第２の接触子、上記第１の接触子を収納し絶縁
消弧ガスを貯留する貯留室を形成する外筒、この外筒の
上記第２の接触子側の一端に設けられて上記第２の接触
子が摺動可能に挿入されるノズル、および、このノズル
に設けられた磁石を有する開閉器において、上記ノズル
に設けられている磁石が、周方向に対して複数個に分割
されてこれを環状に配した磁石であり、かつ、この各磁
石間に周方向に介在する非磁性体を設けていることを特
徴とする開閉器。(1) a first contact; a second contact that opens and closes with respect to the first contact; A switch having a cylinder, a nozzle provided at one end of the outer cylinder on the second contact side and into which the second contact is slidably inserted, and a magnet provided in the nozzle, The magnet provided in the nozzle is a magnet that is divided into a plurality of pieces in the circumferential direction and arranged in a ring shape, and a non-magnetic material is provided between each of the magnets in the circumferential direction. A switch characterized by:
第１項記載の開閉器。(2) The switch according to claim 1, wherein the non-magnetic material is a metallic non-magnetic material.
請求の範囲第１項記載の開閉器。(3) The switch according to claim 1, wherein the non-magnetic material is made of an insulating material.
の範囲第１項記載の開閉器。(4) The switch according to claim 1, wherein the non-magnetic material is constituted by an air gap.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13020286A JPS62287535A (en) | 1986-06-06 | 1986-06-06 | Switch |
| EP92200222A EP0483123B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| EP87305003A EP0248677B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| DE3789165T DE3789165T2 (en) | 1986-06-06 | 1987-06-05 | Switchgear. |
| EP92200220A EP0483121B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| DE3750482T DE3750482T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| EP92200221A EP0483122B1 (en) | 1986-06-06 | 1987-06-05 | Switchgear |
| DE3750513T DE3750513T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| DE3750514T DE3750514T2 (en) | 1986-06-06 | 1987-06-05 | Switching device. |
| US07/059,041 US4786770A (en) | 1986-06-06 | 1987-06-08 | Switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13020286A JPS62287535A (en) | 1986-06-06 | 1986-06-06 | Switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62287535A true JPS62287535A (en) | 1987-12-14 |
Family
ID=15028532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13020286A Pending JPS62287535A (en) | 1986-06-06 | 1986-06-06 | Switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62287535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008282719A (en) * | 2007-05-11 | 2008-11-20 | Nec Tokin Corp | Electrical contact switch |
-
1986
- 1986-06-06 JP JP13020286A patent/JPS62287535A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008282719A (en) * | 2007-05-11 | 2008-11-20 | Nec Tokin Corp | Electrical contact switch |
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