JPH0427056Y2 - - Google Patents
Info
- Publication number
- JPH0427056Y2 JPH0427056Y2 JP16630786U JP16630786U JPH0427056Y2 JP H0427056 Y2 JPH0427056 Y2 JP H0427056Y2 JP 16630786 U JP16630786 U JP 16630786U JP 16630786 U JP16630786 U JP 16630786U JP H0427056 Y2 JPH0427056 Y2 JP H0427056Y2
- Authority
- JP
- Japan
- Prior art keywords
- grid
- contact
- arc
- metal grid
- movable 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000000696 magnetic material Substances 0.000 claims description 6
- 210000002105 tongue Anatomy 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、電磁接触器に関し、特に接触子開離
時に発生するアークの遮断性能を維持したまま簡
素化されたグリツドの構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electromagnetic contactor, and particularly to a grid structure that is simplified while maintaining the ability to interrupt arcs generated when a contactor opens.
従来、この種の電磁接触器のアーク消弧用金属
グリツドは、第９図（ａは正面図、ｂは側面図）
に示すように複数の金属グリツドを設け、個々の
金属グリツド３１は両側面に設けた絶縁板３２の
孔３３に金属グリツド３１の端部を挿入し、かし
め加工あるいは樹脂接着により固着したものが提
案されている（実開昭56−154746号公報参照）。
また、第１０図（ａは側面図、ｂは平面図）に示
すように、複数の金属グリツドを設け、個々の金
属グリツド３４はカバー３５に設けた孔３６に金
属グリツド３４の端部３７を挿入し、同じくかし
め加工あるいは樹脂加工により固着したものが提
案されている（実開昭58−148825号参照）。
Conventionally, the metal grid for arc extinguishing of this type of electromagnetic contactor is shown in Fig. 9 (a is a front view, b is a side view).
As shown in the figure, it is proposed that a plurality of metal grids 31 be provided, the ends of each metal grid 31 inserted into holes 33 of an insulating plate 32 provided on both sides, and fixed by caulking or resin bonding. (Refer to Utility Model Application Publication No. 154746/1983).
Further, as shown in FIG. 10 (a is a side view, b is a plan view), a plurality of metal grids are provided, and each metal grid 34 has an end 37 inserted into a hole 36 provided in a cover 35. It has been proposed to insert it and fix it by caulking or resin processing (see Utility Model Application No. 148825/1983).
しかし、ここに述べた構造は、いずれも複数の
金属グリツドを有し、且つ金属グリツドの固着方
法としては、かしめ加工あるいは樹脂接着を行つ
ていたので、作業が煩雑化し、加工時間が長くな
るという問題点があつた。
However, the structures described here all have multiple metal grids, and the metal grids are fixed by caulking or resin bonding, which makes the work complicated and increases the processing time. There was a problem.
本考案は、このような従来の問題点に鑑みて案
出されたものであり、遮断性能を維持したまま、
安価で簡素化された構造の金属グリツドを提供す
ることを目的とする。 The present invention was devised in view of these conventional problems, and maintains interrupting performance.
The purpose is to provide a metal grid of inexpensive and simplified construction.
この目的を達成するため、本考案の電磁接触器
は、可動接点を有する可動接触子と前記可動接点
に対向して設けた固定接点を有する固定接触子と
の接触部を囲む状態に配設された磁性体にてなる
Ｕ字状のグリツド側板と、前記可動接触子と固定
接触子との間の接触開離ギヤツプの中間部位に、
前記グリツド側板の相対向する内側壁に形成した
凹溝に両側縁が嵌入されて配設されたＶ字形切欠
部を有する磁性体にてなる金属グリツドと、該金
属グリツドの下面を覆う状態に配設され、両側縁
が前記凹溝に前記金属グリツドの両側縁とともに
嵌入された耐アーク性を有する絶縁板とを有し、
前記金属グリツド２２におけるアーク駆動足の移
動最深部に位置する所に前記固定接触子側に折曲
した舌片を設け、前記固定接触子はアークの駆動
足方向に沿つて延びるアークランナー部をその長
手方向に有することを特徴とする。
To achieve this objective, the electromagnetic contactor of the present invention is arranged to surround a contact portion between a movable contact having a movable contact and a fixed contact having a fixed contact provided opposite to the movable contact. a U-shaped grid side plate made of a magnetic material, and an intermediate portion of the contact/disengagement gap between the movable contact and the fixed contact;
A metal grid made of a magnetic material and having a V-shaped cutout with both side edges fitted into grooves formed in opposing inner walls of the grid side plate, and a metal grid arranged to cover the lower surface of the metal grid. an arc-resistant insulating plate having both side edges fitted into the groove together with both side edges of the metal grid;
A tongue piece bent toward the fixed contact is provided in the metal grid 22 at the deepest point of movement of the arc driving leg, and the fixed contact has an arc runner section extending along the direction of the arc driving leg. It is characterized by having it in the longitudinal direction.
以下、本考案を図面に示す実施例に基づいて具
体的に説明する。
Hereinafter, the present invention will be specifically explained based on embodiments shown in the drawings.
第８図は本考案を適用した電磁接触器の全体構
成を示す断面図であり、図中１は絶縁材にてなる
ケース、２はケースカバー、３は底蓋、４は固定
鉄心支持枠、５は固定鉄心、６及び７は緩衝シー
ト、８は固定鉄心５を固定鉄心支持枠４に連結す
るピン、９は電磁コイル、１０は可動鉄心、１１
は反発スプリング、１２は可動枠、１３は可動鉄
心と可動枠１２とを連結する連結板、１４は緩衝
座、１５，１６は固定接触子、１７，１８は固定
接触端子板、１９は可動接触子、２０は該可動接
触子１９に接点圧力を与える接触スプリング、２
１はスプリング受である。 FIG. 8 is a sectional view showing the overall configuration of an electromagnetic contactor to which the present invention is applied, in which 1 is a case made of an insulating material, 2 is a case cover, 3 is a bottom cover, 4 is a fixed core support frame, 5 is a fixed core, 6 and 7 are buffer sheets, 8 is a pin that connects the fixed core 5 to the fixed core support frame 4, 9 is an electromagnetic coil, 10 is a movable core, 11
12 is a repulsion spring, 12 is a movable frame, 13 is a connecting plate that connects the movable iron core and the movable frame 12, 14 is a buffer seat, 15 and 16 are fixed contacts, 17 and 18 are fixed contact terminal plates, and 19 is a movable contact. 20 is a contact spring 2 that applies contact pressure to the movable contact 19.
1 is a spring holder.
前記可動接触子１９と固定接触子１５，１６と
のアーク発生空間を囲繞する状態に、本考案の金
属グリツド２２が接点毎に配置されている。 A metal grid 22 of the present invention is arranged for each contact so as to surround the arc generating space between the movable contact 19 and the fixed contacts 15 and 16.
第１図はその詳細を示すもので、第２図は第１
図のＡ−Ａ線矢視図である。これらの図におい
て、可動接触子１９に設けた可動接点１９ａと固
定接触子１６に設けた固定接点１６ａとは対向し
て配置されており、これらの接点１６ａ及び１９
ａに近接して囲むように、グリツド側板２３が配
設されており、このグリツド側板２３に、鉄板等
の磁性体にてなるＶ字形切欠部を有する金属グリ
ツド２２及びそれと略同形状の耐アーク性に優れ
た絶縁材料、例えばガラス繊維を含んだメラミン
樹脂、ユリア樹脂、エポキシ樹脂、フエノール樹
脂等にてなる絶縁板２４が組み込まれている。金
属グリツド２２には、固定接触子１６のアークラ
ンナー部１６ｂとの間に、アークの駆動足の移動
最深部、すなわちＶ字形切欠部のＶ形の先端部
に、金属グリツド２２と固定接触子１６との間の
離隔距離最小部となるギヤツプl3を形成するため
の舌片２２ａが設けられている。 Figure 1 shows the details, and Figure 2 shows the details.
It is an AA line arrow view of a figure. In these figures, the movable contact 19a provided on the movable contact 19 and the fixed contact 16a provided on the fixed contact 16 are arranged to face each other, and these contacts 16a and 19
A grid side plate 23 is disposed adjacent to and surrounding the grid side plate 23, and a metal grid 22 having a V-shaped notch made of a magnetic material such as an iron plate and an arc-resistant metal grid having approximately the same shape as the metal grid 22 are arranged on the grid side plate 23 so as to surround the grid An insulating plate 24 made of an insulating material with excellent properties, such as melamine resin containing glass fiber, urea resin, epoxy resin, phenol resin, etc., is incorporated. The metal grid 22 is provided between the arc runner part 16b of the fixed contact 16, and the metal grid 22 and the fixed contact 16 are placed at the deepest point of movement of the arc driving foot, that is, at the V-shaped tip of the V-shaped notch. A tongue piece 22a is provided to form a gap l3 which is the minimum distance between the two parts.
第３図に示すように、絶縁板２４は金属グリツ
ド２２のＶ字形切欠部より斜線で示したＢ部の距
離l1だけ大きくし、また、斜線Ｃ部の距離l2だけ
長くしてねじ２５（第２図参照）の頭部とグリツ
ド側板２３の間を絶縁する。 As shown in FIG. 3, the insulating plate 24 is made longer than the V-shaped notch of the metal grid 22 by a distance l 1 at the shaded part B, and by a distance l 2 at the hatched part C. (See FIG. 2) and the grid side plate 23 is insulated.
以上のような構造の下でのアークの駆動を、第
４図によつて説明する。すなわち、接点の開離初
期はＤで示す接点間よりアークが発生し、磁性体
にてなる金属グリツド２２を設けたことにより、
接点開離距離l4が拡大するに伴い、可動接触子１
９の先端１９ｂとアークランナー部１６ｂとの間
で、Ｅ→Ｆ→Ｇへと転移し、Ｈで金属グリツド２
２の端部の舌片２２ａに達し、アークは大きく引
伸ばされ冷却されて消弧される。 The driving of the arc under the above structure will be explained with reference to FIG. That is, at the beginning of the opening of the contacts, an arc is generated between the contacts indicated by D, and by providing the metal grid 22 made of a magnetic material,
As the contact separation distance l 4 increases, the movable contact 1
Between the tip 19b of 9 and the arc runner part 16b, the transition is from E→F→G, and at H the metal grid 2
The arc reaches the tongue piece 22a at the end of the arc 2, and the arc is greatly elongated, cooled, and extinguished.
第５図は金属グリツド２２と絶縁板２４とを重
ね合わせてグリツド側板２３の凹溝２３ａに挿入
する状態を示す斜視図、第６図は挿入後の状態を
示す縦断側面図である。金属グリツド２２は、へ
の字状曲げ部を有し、この曲げ部の高さｈと絶縁
板２４の板厚t1の和が単一部品の状態でグリツド
側板２３の凹溝２３ａの幅l5よりも大きくなるよ
うにすることにより、挿入後の保持が可能とな
る。また、グリツド側板２３に設けた凹溝２３ａ
には、第７図（ａは縦断側面図、ｂはａの−
線における拡大断面図）に示すように、その中央
部に長角孔２３ｂを設ける。この長角孔２３ｂを
設けたのは、凹溝２３ａはプレス加工により圧縮
加工して形成される際、その材料の逃げを確保す
るためである。 FIG. 5 is a perspective view showing the state in which the metal grid 22 and the insulating plate 24 are overlapped and inserted into the groove 23a of the grid side plate 23, and FIG. 6 is a longitudinal sectional side view showing the state after insertion. The metal grid 22 has a curved part, and the sum of the height h of this bent part and the thickness t1 of the insulating plate 24 is equal to the width l of the groove 23a of the grid side plate 23 when it is a single part. By making it larger than 5 , it becomes possible to hold it after insertion. In addition, a concave groove 23a provided in the grid side plate 23
Figure 7 (a is a vertical side view, b is a -
As shown in the enlarged cross-sectional view taken along the line, a rectangular hole 23b is provided in the center thereof. The reason why the rectangular hole 23b is provided is to ensure that the material can escape when the groove 23a is formed by compression processing by press working.
〔考案の効果〕
以上に説明したように、本考案においては、可
動接触子及び固定接触子の周囲にグリツド側板を
設け、これに舌片を有するＶ字形の金属グリツド
と絶縁板を設けて遮断機構を形成している。これ
により、可動接触子の開離時に、アークは最終的
に金属グリツドの舌片と固定接触子のアークラン
ナー部に導かれて消弧に至ることになる。したが
つて、１枚の金属グリツドと絶縁材という簡単な
構成でありながら、従来と同等の遮断特性を得る
ことができ、また接点消耗の度合も低下すること
がなく、安価で簡単な構造のアーク遮断機構を実
現することが可能となる。[Effects of the invention] As explained above, in the present invention, a grid side plate is provided around the movable contact and the fixed contact, and a V-shaped metal grid having tongues and an insulating plate are provided on this to provide isolation. It forms a mechanism. As a result, when the movable contact is opened, the arc is finally guided to the tongue of the metal grid and the arc runner section of the fixed contact, and is extinguished. Therefore, although it has a simple structure consisting of one metal grid and an insulating material, it is possible to obtain the same breaking characteristics as the conventional one, and the degree of contact wear does not decrease, making it possible to achieve an inexpensive and simple structure. It becomes possible to realize an arc interrupting mechanism.
第１図は本考案に係るアーク遮断機構の平面
図、第２図は第１図のＡ−Ａ線における断面図、
第３図は金属グリツドと絶縁板の関係を示す説明
図、第４図はアークの転移の様子を示す説明図、
第５図は金属グリツドと絶縁板をグリツド側板に
装着する状態を示す斜視図、第６図及び第７図は
グリツド側板に対する金属グリツドと絶縁板との
組立を示す説明図、第８図は本考案のアーク遮断
機構を備えた電磁接触器の縦断側面図、第９図及
び第１０図は従来のアーク遮断機構を示す図であ
る。
１……ケース、２……ケースカバー、３……底
蓋、４……固定鉄心支持枠、５……固定鉄心、
６，７……緩衝シート、８……ピン、９……電磁
コイル、１０……可動鉄心、１１……反発スプリ
ング、１２……可動枠、１３……連結板、１４…
…緩衝座、１５，１６……固定接触子、１６ａ…
…固定接点、１６ｂ……アークランナー部、１
７，１８……固定接触端子板、１９……可動接触
子、１９ａ……可動接点、２０……接触スプリン
グ、２１……スプリング受、２２……金属グリツ
ド、２２ａ……舌片、２３……グリツド側板、２
３ａ……凹溝、２３ｂ……長角孔、２４……絶縁
板、２５……ねじ。
Fig. 1 is a plan view of the arc interrupting mechanism according to the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1,
Fig. 3 is an explanatory diagram showing the relationship between the metal grid and the insulating plate, Fig. 4 is an explanatory diagram showing the state of arc transition,
Fig. 5 is a perspective view showing how the metal grid and insulating plate are attached to the grid side plate, Figs. 6 and 7 are explanatory views showing the assembly of the metal grid and insulating plate to the grid side plate, and Fig. 8 is the main FIGS. 9 and 10, which are longitudinal sectional side views of an electromagnetic contactor equipped with the invented arc interrupting mechanism, are views showing a conventional arc interrupting mechanism. 1... Case, 2... Case cover, 3... Bottom cover, 4... Fixed core support frame, 5... Fixed core,
6, 7... Buffer sheet, 8... Pin, 9... Electromagnetic coil, 10... Movable core, 11... Repulsion spring, 12... Movable frame, 13... Connection plate, 14...
...Buffer seat, 15, 16... Fixed contact, 16a...
...Fixed contact, 16b...Arc runner part, 1
7, 18... Fixed contact terminal plate, 19... Movable contact, 19a... Movable contact, 20... Contact spring, 21... Spring receiver, 22... Metal grid, 22a... Tongue piece, 23... Grid side plate, 2
3a...concave groove, 23b...rectangular hole, 24...insulating plate, 25...screw.
Claims (1)
可動接点１９ａに対向して設けた固定接点１６ａ
を有する固定接触子１６との接触部を囲む状態に
配設された磁性体にてなるＵ字状のグリツド側板
２３と、前記可動接触子１９と固定接触子１６と
の間の接触開離ギヤツプの中間部位に、前記グリ
ツド側板２３の相対向する内側壁に形成した凹溝
２３ａに両側縁が嵌入されて配設されたＶ字形切
欠部を有する磁性体にてなる金属グリツド２２
と、該金属グリツド２２の下面を覆う状態に配設
され、両側縁が前記凹溝２３ａに前記金属グリツ
ド２２の両側縁とともに嵌入された耐アーク性を
有する絶縁板２４とを有し、前記金属グリツド２
２におけるアーク駆動足の移動最深部に位置する
所に前記固定接触子１６側に折曲した舌片２２ａ
を設け、前記固定接触子１６はアークの駆動足方
向に沿つて延びるアークランナー部１６ｂをその
長手方向に有することを特徴とする電磁接触器。 A movable contact 19 having a movable contact 19a and a fixed contact 16a provided opposite to the movable contact 19a.
A U-shaped grid side plate 23 made of a magnetic material is arranged to surround the contact portion with the fixed contact 16 having a contact/disengagement gear between the movable contact 19 and the fixed contact 16. A metal grid 22 made of a magnetic material has a V-shaped notch in the middle portion of the grid, the side edges of which are fitted into grooves 23a formed in the opposing inner walls of the grid side plate 23.
and an arc-resistant insulating plate 24 disposed to cover the lower surface of the metal grid 22 and having both side edges fitted into the groove 23a together with both side edges of the metal grid 22. grid 2
2, the tongue piece 22a is bent toward the fixed contact 16 at the deepest point of movement of the arc drive foot in FIG.
An electromagnetic contactor characterized in that the fixed contactor 16 has an arc runner portion 16b in its longitudinal direction that extends along the driving direction of the arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16630786U JPH0427056Y2 (en) | 1986-10-28 | 1986-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16630786U JPH0427056Y2 (en) | 1986-10-28 | 1986-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6370639U JPS6370639U (en) | 1988-05-12 |
| JPH0427056Y2 true JPH0427056Y2 (en) | 1992-06-29 |
Family
ID=31097157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16630786U Expired JPH0427056Y2 (en) | 1986-10-28 | 1986-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427056Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101437133B1 (en) * | 2010-06-25 | 2014-09-02 | 현대중공업 주식회사 | Permanent Magnet Actuator for Magnetic Contactor |
-
1986
- 1986-10-28 JP JP16630786U patent/JPH0427056Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6370639U (en) | 1988-05-12 |
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