JPS62206713A - Power switchgear - Google Patents
Power switchgearInfo
- Publication number
- JPS62206713A JPS62206713A JP4896586A JP4896586A JPS62206713A JP S62206713 A JPS62206713 A JP S62206713A JP 4896586 A JP4896586 A JP 4896586A JP 4896586 A JP4896586 A JP 4896586A JP S62206713 A JPS62206713 A JP S62206713A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- arc
- movable
- movable contact
- fixed
- 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
Links
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Contacts (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】
〔産業上の利用分野〕
この発明は、電力の開閉を行う電力開閉器１％にその接
触子の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in the contactor of a power switch 1% that switches on and off the power.
電力開閉器は、電磁接触器や配線用遮断器として広（用
いられている。Power switches are widely used as electromagnetic contactors and molded circuit breakers.
従来の電力開閉器としては９例えば実開昭５７−１９２
６４７号公報に見られる第２図に示すようなｔａ接触器
が周知であり、該電磁接触器は左右対象であるから右側
断面のみを示す。As a conventional power switch, for example, 9
A TA contactor as shown in FIG. 2, which can be found in Japanese Patent No. 647, is well known, and since the electromagnetic contactor is symmetrical, only the right side cross section is shown.
同図において、（１）はプラスチック等で形成された取
付台、（２）はこの取付台上にケイ素鋼板で積層された
固定鉄心、（３）は固定鉄心（２）に対抗配置されこれ
と同じくケイ素鋼板で積層された可動鉄心。In the figure, (1) is a mounting base made of plastic, etc., (2) is a fixed core laminated with silicon steel plates on this mounting base, and (3) is a fixed core placed opposite to the fixed core (2). The movable iron core is also laminated with silicon steel plates.
＋４１Ｆｉ可動鉄心（３）と固定鉄心（２）とを引き外
しバネ（図示省略）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
を有するクロスバ−で、その下端には可動鉄心（３）が
保持されている。（６）ハ上記クロスバ−（５）の角窓
に挿入されて押しバネ（７）により保持されている可動
接触子、 （６８） は可動接触子４６）に設けら
れた可動接点、 Ｆ８１Ｈ上記可動接触子（６１と対向
して設けられ、電流の通電を行う固定接触子、 （８
Ｂ） はこの固定接触子（８）に設けられた固定接点
、 （８ｂ） は同じくこの固定接触子（８）の端
子部を示す。（９）は電磁接触器本体を外部回路と接続
するための端子ねじ。The operation coil (5) provides a driving force to attract the +41Fi movable iron core (3) and the fixed iron core (2) against a spring (not shown), and the crossbar (5) is made of plastic and has a square window. A movable iron core (3) is held at its lower end. (6) C The movable contact inserted into the corner window of the crossbar (5) and held by the push spring (7), (68) the movable contact provided on the movable contact 46), F81H the movable A fixed contact that is provided opposite the contactor (61 and conducts current flow,
B) indicates a fixed contact provided on this fixed contact (8), and (8b) similarly indicates a terminal portion of this fixed contact (8). (9) is a terminal screw for connecting the electromagnetic contactor body to an external circuit.
Ｑｌは固定接触子（８）全取付けるベース、σ１１は電
磁接触器上面を覆うカバーでその内部には固定接点（８
ａ）と可動接点（６ａ）との間に生じるアークσ２を消
弧するための磁性体の金属消弧板α謙を設けてあり、こ
の金属消弧板αＪは図より明らかなように。Ql is the base on which all the fixed contacts (8) are attached, and σ11 is the cover that covers the top surface of the electromagnetic contactor, inside which are the fixed contacts (8).
A metal arc-extinguishing plate αJ made of a magnetic material is provided to extinguish the arc σ2 generated between a) and the movable contact (6a), and this metal arc-extinguishing plate αJ is clearly visible from the figure.
可動接触子と対向させ固定接触子（８）上方にこれと平
行してかつ互いに所定間隔を隔てて累積併設されている
。The fixed contacts (8) are stacked above and parallel to the fixed contacts (8) facing the movable contacts and spaced apart from each other by a predetermined distance.
従来の電力開閉器は以上のような構成を有し以下にその
作用について説明する。The conventional power switch has the above-mentioned configuration, and its operation will be explained below.
第２図に示す電磁接触器において、操作コイル（４）を
消磁すると９図示を省略した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−（５）
も同図に示す上位を占め、固定接点（８リ と可動接点
（６リ とが開離して固定接点（８リ と可動接点（６
ａ）との間にアークａ２が生じるが、このアークαＦＫ
は第３図に示されるように金属消弧板０に吸引され、ア
ーク（＋２ａ）のように引き伸され。In the electromagnetic contactor shown in Fig. 2, when the operating coil (4) is demagnetized, the movable core (3) is separated from the fixed core (2) by a tripping spring (9) not shown, and the crossbar (5)
The fixed contact (8ri) and the movable contact (6i) are separated, and the fixed contact (8ri) and the movable contact (6ri) occupy the upper position shown in the figure.
An arc a2 occurs between a), but this arc αFK
is attracted to the metal arc-extinguishing plate 0 as shown in FIG. 3, and is stretched like an arc (+2a).
最終的にはアーク（＋ ２ｂ）のようになり、金属消弧
板α謙により消弧され、電流が遮断される。Eventually, it becomes an arc (+2b), which is extinguished by the metal arc extinguishing plate α, and the current is interrupted.
ここで、このような電力開閉動作を行う従来の電力開閉
器の可動接触子（６）は第４図Ａに示すような形状をし
ていた。すなわち、可動接触子（６）上平板状導体から
なす、該可動接触子（６）の固定接触子（８）と対向す
る面の先端部には正方形状の可動接点（６ａ）がロウ材
により接合されていた。Here, the movable contact (6) of a conventional power switch that performs such a power switching operation has a shape as shown in FIG. 4A. That is, a square-shaped movable contact (6a) is formed of a flat conductor on the movable contact (6), and a square movable contact (6a) is formed by brazing material at the tip of the surface of the movable contact (6) facing the fixed contact (8). It was joined.
従って、可動接点（６ａ）に生じたアークの足は。Therefore, the foot of the arc generated at the movable contact (6a) is.
可動接触子（６１の先端部へ移動する際、可動接点（６
ａ） と可動接触子（６１との境界線のうち可動接触
子（６１の先端部に近接した境界線すなわち剥離初期発
生位置（６ｂ）上を通過することになる。When moving to the tip of the movable contact (61), the movable contact (61
a) It passes over the boundary line close to the tip of the movable contactor (61), that is, the initial peeling occurrence position (6b) among the boundaries between the movable contactor (61) and the movable contactor (61).
このため、第４図Ｂにも示すように、接点（６ａ）と接
触子（６）とを接合するロウ材が溶解して、可動接点（
６ａ）の熱応力による剥離が起り易くなる。Therefore, as shown in FIG. 4B, the brazing material that joins the contact (6a) and the contactor (6) melts, and the movable contact (
6a) Peeling due to thermal stress is likely to occur.
この剥離は、多数回繰り返される接点Ｃ６１３）、 （
８ａ）の開閉動作に応じてその進行速度が早まり；接点
（６８）の消耗が速（なるという問題点があった。This peeling is repeated many times at contact point C613), (
As the opening/closing operation of 8a) increases, the speed of movement increases; there is a problem that the contact point (68) wears out quickly.
同様に、固定接触子（８）に接合される固定接点（８ａ
）についてもアークによって剥離し易（なり、固定接点
（８ａ）の消耗が速（なるという問題点があった。Similarly, the fixed contact (8a) joined to the fixed contact (8)
) also had problems in that it easily peeled off due to arcing and the fixed contact (8a) wore out quickly.
この発明は係る問題点を解決するために為されたもので
、接点のアーク熱による剥離を防止し、を力量閉器の長
寿命化を図ることを目的とする。This invention was made to solve this problem, and its purpose is to prevent the contacts from peeling off due to arc heat, and to extend the life of the power closure.
この発明に係る電力開閉器は接触子の接点接合部にアー
ク駆動方向へ行く程深（なる凹部を設け、この凹部と係
合し上記アーク駆動方向へ行（程厚さが増す接点を接合
したものである。The power switch according to the present invention has a recess that becomes deeper as it goes in the arc driving direction in the contact joint part of the contact, and a contact that is engaged with this recess and becomes thicker as it goes in the arc driving direction is joined. It is something.
前述した構成からも明らかなように９本発明に係る電力
開閉器によれば、接点のアーク駆動端部が接触子にだき
込まれているので、アークは接点の剥離初期発生位置を
通過することがなく、従ってアーク熱によりロウ材が溶
解して。As is clear from the above-mentioned configuration, according to the power switch according to the present invention, the arc driving end of the contact is recessed into the contact, so that the arc does not pass through the initial contact peeling position. Therefore, the arc heat melts the brazing metal.
接点の熱応力による剥離が起こりに（くなる。Peeling of contacts due to thermal stress is likely to occur.
以下、この発明の一実施例を図をもとに説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図Ａ、 Ｂはこの発明の一実施例に係わる可動接
触子を示すそれぞれ側面図および平面図である。図にお
いて、 （６Ｇ） は可動接触子＋６１に設けられ
アーク駆動方向へ行（程深くなる凹部すなわちこの例で
は溝であり、この溝（６Ｃ） に、アーク駆動方向へ
行（程厚さが増す断面台形状の接点（６りが接合されて
いる。（６ｄ）は可動接触子（６１の先端を示す。他の
部分については第２図に示す従来の１カ開閉器と同一で
あるので説明を省略する。1A and 1B are a side view and a plan view, respectively, showing a movable contactor according to an embodiment of the present invention. In the figure, (6G) is a recess that is provided in the movable contact +61 and goes in the arc drive direction (the thickness increases as the thickness increases). A contact with a trapezoidal cross section (6 points are joined. (6d) shows the tip of a movable contact (61). The other parts are the same as the conventional one-way switch shown in Fig. 2, so they will be explained. omitted.
次に動作について説明するが、第２図、第３図に示す従
来の電力開閉器の動作に類似しているので、相違点を中
心に説明を進める。Next, the operation will be explained, but since it is similar to the operation of the conventional power switch shown in FIGS. 2 and 3, the explanation will focus on the differences.
可動接点（６ａ）に生じたアークの足は、第３図に示す
従来例と同様に、磁性体の金属消弧板により駆動されて
可動接触子（６）の先端部（６ｄ）側へ移動する。この
時、この発明によれば、可動接点（６ａ）の剥離初期発
生位！ （６１）） が可動接触子（６）により覆わ
れているので、上記剥離初期発生位置（６ｂ）がアーク
の足になめられることがない。したがって、剥離初期発
生位置（６ｂ）の部分のロウ材が浴ける現象を防止でき
、可動接点（６ａ）の可動接触子（６１からの剥離を防
止することができる。The legs of the arc generated at the movable contact (6a) are driven by a magnetic metal arc-extinguishing plate and move toward the tip (6d) of the movable contact (6), similar to the conventional example shown in Fig. 3. do. At this time, according to the present invention, the movable contact (6a) is at the initial peeling point! (61)) is covered by the movable contactor (6), so the above-mentioned peeling initial occurrence position (6b) will not be licked by the legs of the arc. Therefore, it is possible to prevent the brazing material at the initial peeling occurrence position (6b) from being exposed, and it is possible to prevent the movable contact (6a) from peeling off from the movable contactor (61).
なお、接点（６リ の剥離を防止するため第５図Ａ、
Ｂにそれぞれ側面図および平面図で示すように、深さ
が一定の凹部（６Ｃ）に厚さが一定の接点（６ａ）を接
合する方法も考えられるが、この場合。In addition, in order to prevent contact points (6) from peeling off,
As shown in a side view and a plan view, respectively, in B, a method of joining a contact point (6a) with a constant thickness to a recess (6C) with a constant depth can also be considered, but in this case.
接点（６リ における凹部（６リ に埋まる部分すなわ
ち第５図のｆＰ＋線部が有効に活用されない。すなわち
、接点（６リ の田つ張り部分すなわち非斜緋部がアー
ク熱によって消耗した時点で接点（６ａ）の寿命が尽き
、斜線で示す直方体部が有効に活用されないことになる
。これに対して、第１図Ａ。The part buried in the concave part (6ri) at the contact point (6ri), that is, the fP+ line part in Fig. 5, is not effectively utilized. The life of the contact point (6a) has come to an end, and the rectangular parallelepiped portion shown by diagonal lines cannot be used effectively.In contrast, as shown in FIG. 1A.
ＢＫ示すこの発明の一実施例では、接点（６ａ）におけ
る凹部（６リ にＭまる部分すなわちｆｆ？＋線部の体
＠全第５図Ａ、 Ｂの斜線部の体積より小さくするこ
とができ、接点（６リ の非有効部分をより小さくする
ことができる。したがって、高価な接点材料の無駄使い
をも防止できる。In one embodiment of the present invention shown in BK, the volume of the recess (6a) at the contact point (6a), that is, the part surrounded by M, ff? , the ineffective portion of the contact (6) can be made smaller. Therefore, wasteful use of expensive contact material can also be prevented.
なお、上記実施例では凹部（６Ｃ）が溝である場合を示
したが１例えば接触子（６１の接点接合部のみが凹んで
いてもよく、上記実施例と同様の効果が得られる。In the above embodiment, the recess (6C) is a groove, but for example, only the contact joint portion of the contact (61) may be recessed, and the same effect as in the above embodiment can be obtained.
また、上記実施例では可動接点（６ａ）側にこの発明を
適用した場合について説明したが、固定接点（ａ＠）
＠、に適用してもよく、さらに両方の接点Ｃ６８） 、
（８ａ） に適用してもよい。Further, in the above embodiment, the case where the present invention is applied to the movable contact (6a) side is explained, but the fixed contact (a@)
It may be applied to @, and also both contacts C68),
(8a) may also be applied.
さらに、上記実施例では電力開閉器の一株である電磁接
触器にこの発明を適用した場合について説明したが９例
えば配線用しゃ断器のような他の電力開閉器にもこの発
明が適用できるのは明白である。Furthermore, in the above embodiment, the case where the present invention is applied to an electromagnetic contactor, which is a type of power switch, has been described.9 However, the present invention can also be applied to other power switches such as circuit breakers. is obvious.
以上のように、この発明によれば、接触子の接点接合部
にアーク駆動方向へ行く程深くなる凹部を設け、この凹
部と係合し上記アーク駆動方向へ行く程厚さが増す接点
を接合したので、接点のアーク熱による剥離全防止でき
る効果がある。As described above, according to the present invention, a recess that becomes deeper as it goes in the arc driving direction is provided in the contact joint part of the contact, and a contact that engages with this recess and becomes thicker as it goes in the arc driving direction is joined. This has the effect of completely preventing peeling of the contacts due to arc heat.
第１図Ａ、 Ｂはこの発明の一実施例に係る可動接触
子を示すそれぞれ側面図および平面図、第２図は従来の
電力開閉器の一例を示す半玉面断面図。
第３図は第２図のものの消弧作用を説明する説明図、第
４図Ａ、 Ｂはそれぞれ従来の接触子の接点剥離現象
を示す説明図、第５図Ａ、Ｂは比較例に係る可動接触子
を示すそれぞれ側面図および平面図である。
図において、（６１は可動接触子、 （６ａ） は
可動接点、 Ｃ６ｂ） は剥離初期発生位置、
（６０） は凹部。
（８）は固定接触子、 （８ａ、ｌ は固定接点、
αＬ （１２８）（１２ｂ）はアーク、θ３Ｉ／′ｉ
金属消弧板である。
なお、各図中同一符号は同一または相当部分を示すもの
とする。FIGS. 1A and 1B are a side view and a plan view, respectively, showing a movable contact according to an embodiment of the present invention, and FIG. 2 is a half-beam sectional view showing an example of a conventional power switch. Fig. 3 is an explanatory diagram explaining the arc extinguishing effect of the one in Fig. 2, Figs. 4 A and B are explanatory diagrams respectively showing the contact peeling phenomenon of the conventional contact, and Fig. 5 A and B are related to a comparative example. They are a side view and a plan view, respectively, showing a movable contact. In the figure, (61 is a movable contact, (6a) is a movable contact, C6b) is the initial peeling occurrence position,
(60) is a recess. (8) is a fixed contact, (8a, l are fixed contacts,
αL (128) (12b) is an arc, θ3I/′i
It is a metal arc extinguishing plate. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (2)
に接合され上記固定接点と接離可能な可動接点とを備え
、上記両接点開離時に生じるアークを駆動して消弧する
電力開閉器において、上記接触子の接点接合部に上記ア
ーク駆動方向へ行く程深くなる凹部を設け、この凹部と
係合し上記アーク駆動方向へ行く程厚さが増す接点を接
合したことを特徴とする電力開閉器。(1) Electric power for driving and extinguishing the arc that occurs when both the contacts open and close, including a fixed contact that is joined to a fixed contact and a movable contact that is joined to a movable contact that can make contact with and separate from the fixed contact. In the switch, a recess is provided in the contact joint portion of the contact that becomes deeper as it goes in the arc driving direction, and a contact that engages with the recess and becomes thicker as it goes in the arc driving direction is joined. power switch.
形状である特許請求の範囲第１項記載の電力開閉器。(2) The power switch according to claim 1, wherein the contact whose thickness increases as it goes in the arc drive direction has a trapezoidal cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61048965A JPH0793069B2 (en) | 1986-03-06 | 1986-03-06 | Power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61048965A JPH0793069B2 (en) | 1986-03-06 | 1986-03-06 | Power switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62206713A true JPS62206713A (en) | 1987-09-11 |
| JPH0793069B2 JPH0793069B2 (en) | 1995-10-09 |
Family
ID=12817992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61048965A Expired - Fee Related JPH0793069B2 (en) | 1986-03-06 | 1986-03-06 | Power switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793069B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6562672B2 (en) | 1991-03-18 | 2003-05-13 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor material and method for forming the same and thin film transistor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245168U (en) * | 1975-09-29 | 1977-03-30 |
-
1986
- 1986-03-06 JP JP61048965A patent/JPH0793069B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245168U (en) * | 1975-09-29 | 1977-03-30 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6562672B2 (en) | 1991-03-18 | 2003-05-13 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor material and method for forming the same and thin film transistor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0793069B2 (en) | 1995-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62206713A (en) | Power switchgear | |
| JPS6193518A (en) | Power switch | |
| JPS62208515A (en) | Power switchgear | |
| JPS62206716A (en) | Power switchgear | |
| JPS59196515A (en) | Power switching device | |
| JPS59111210A (en) | Switch | |
| JPS5998419A (en) | Power switch | |
| JPH0447925B2 (en) | ||
| JPS61135006A (en) | Power switch gear | |
| JPS62219419A (en) | Switch | |
| JPS62208513A (en) | Power switchgear | |
| JPH0610942B2 (en) | Power switch | |
| JPS59117020A (en) | Power switch | |
| JPS63252328A (en) | Switch | |
| JPH03230434A (en) | Switch | |
| JPS63108623A (en) | Switch | |
| JPH03266318A (en) | Switchgear | |
| JPH0589737A (en) | Switch | |
| JPS60119031A (en) | Switch | |
| JPS61256518A (en) | Switch | |
| JPH0589738A (en) | Switch | |
| JPS61232518A (en) | Switch | |
| JPS61193311A (en) | Switch | |
| JPH0586008B2 (en) | ||
| JPH02220315A (en) | Power switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |