JP2530839B2 - Method of manufacturing electric contact - Google Patents
Method of manufacturing electric contactInfo
- Publication number
- JP2530839B2 JP2530839B2 JP62070579A JP7057987A JP2530839B2 JP 2530839 B2 JP2530839 B2 JP 2530839B2 JP 62070579 A JP62070579 A JP 62070579A JP 7057987 A JP7057987 A JP 7057987A JP 2530839 B2 JP2530839 B2 JP 2530839B2
- Authority
- JP
- Japan
- Prior art keywords
- electric contact
- welding
- base material
- electric
- manufacturing
- 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 - Lifetime
Links
Landscapes
- Manufacture Of Switches (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、スイッチ、リレー、ブレーカー等に用いる
電気接触子の製造方法の改良に関する。Description: TECHNICAL FIELD The present invention relates to an improvement in a method for manufacturing an electric contact used for a switch, a relay, a breaker, and the like.
（従来の技術） 従来より電気接触子を製造する方法の一つに、第２図
に示す如く電気接点１を台材２に抵抗溶接して電気接触
子３を作る方法がある。(Prior Art) Conventionally, as one of the methods for manufacturing an electric contactor, there is a method for making an electric contactor 3 by resistance welding an electric contact 1 to a base material 2 as shown in FIG.
（発明が解決しようとする問題点） ところが、上記の電気接触子の製造方法では、溶接時
の発熱による影響がしばしば問題となっている。特に溶
接強度を高く安定させる為に、第３図に示す如く電気接
点１の底面にプロジェクション４を設け、台材２との溶
接時に発熱を集中させて抵抗溶接する、所謂プロジェク
ション溶接による電気接触子の製造方法では、電気接点
１の中央部が中心に発熱する熱分布となって溶け込む
為、電気接点１の表面に第４図に示す如く球面状に陥み
５が残ることがあり、そのような電気接点１を備えた電
気接触子３は使用時接触が不安定となっていた。(Problems to be Solved by the Invention) However, in the above-described method for manufacturing an electric contact, the influence of heat generation during welding is often a problem. In particular, in order to stabilize the welding strength at a high level, a projection 4 is provided on the bottom surface of the electric contact 1 as shown in FIG. 3, and heat generation is concentrated during welding with the base material 2 to perform resistance welding, so-called projection welding electric contactor. In the manufacturing method of (1), since the central portion of the electrical contact 1 melts in a heat distribution centering on the center and melts, a spherical recess 5 may remain on the surface of the electrical contact 1 as shown in FIG. The contact of the electric contactor 3 provided with such an electric contact 1 was unstable during use.
（発明の目的） 本発明は、上記問題点を解決すべくなされたもので、
電気接点の台材への溶接時の発熱による影響が無くて電
気接点の表面に球面状の陥みが発生せず、しかも溶接強
度が高く安定した電気接触子の製造方法を提供すること
を目的とするものである。(Object of the Invention) The present invention has been made to solve the above problems,
An object of the present invention is to provide a method for manufacturing a stable electric contact that does not have a spherical depression on the surface of the electric contact without being affected by heat generated during welding of the electric contact to the base material and has high welding strength. It is what
（問題点を解決するための手段） 上記問題点を解決するための本発明による電気接触子
の製造方法は、台材の電気接点が溶接される位置の中央
部に適当な大きさの円孔を貫通穿設した上で、電気接点
を台材の片面にプロジェクション溶接することを特徴と
するものである。(Means for Solving Problems) A method for manufacturing an electric contact according to the present invention for solving the above problems is a circular hole having an appropriate size in a central portion of a position where an electric contact of a base material is welded. Is formed by penetrating, and the electrical contacts are projection-welded to one surface of the base material.
（作用） 上記のように本発明の電気接触子の製造方法は、台材
の電気接点が溶接される位置の中央部に適当な大きさの
円孔が貫通穿設するので、電気接点のプロジェクション
溶接時円孔により熱が放散されて溶接位置の中央部に集
中せず、両側に分散される。従って、電気接点の中央部
が溶け込むことが無く、電気接点の表面に球面状の陥み
が発生しない。また溶接強度が高く安定したものとな
る。(Operation) As described above, in the method for manufacturing an electric contact of the present invention, since a circular hole having an appropriate size is formed through the central portion of the base material where the electric contact is welded, the projection of the electric contact is formed. At the time of welding, the heat is dissipated by the circular holes and is not concentrated in the center of the welding position but is dispersed on both sides. Therefore, the central portion of the electrical contact does not melt, and a spherical depression does not occur on the surface of the electrical contact. Also, the welding strength is high and stable.
尚、台材の円孔の径は、電気接点の幅の略1/5〜1/2が
好適で、1/5未満だと円孔の熱放散効果が無く、溶接に
よる発熱を両側に分散させることができず、1/2を超え
ると溶接強度を高く安定させることができないものであ
る。The diameter of the circular hole of the base material is preferably about 1/5 to 1/2 of the width of the electrical contact.If it is less than 1/5, there is no heat dissipation effect of the circular hole and the heat generated by welding is dispersed on both sides. If it exceeds 1/2, the welding strength cannot be made high and stable.
（実施例） 本発明による電気接触子の製造方法の一実施例従来例
と共に説明する。(Example) An example of a method for manufacturing an electric contact according to the present invention will be described together with a conventional example.
先ず本発明の一実施例を図によって説明すると、第１
図ａに示す如く厚さ0.8mm、幅5.0mm、長さ15mmの黄銅よ
り成る台材２の先端から3mmの部分に直径1.5mmの円孔６
を貫通穿設し、この台材２の円孔６が中央部となる位置
で、第１図ｂに示す如く幅3mm、長さ3mm、厚さ0.8mmで
底面中央に幅0.2mm、長さ3mm、高あ0.1mmのプロジェク
ション４を有するPd−Ru10wt％より成る電気接点１を、
第図ｃに示す如くプロジェクション溶接して電気接触子
３を得た。First, one embodiment of the present invention will be described with reference to the drawings.
As shown in Fig. A, a circular hole 6 having a diameter of 1.5 mm is formed 3 mm from the tip of a base material 2 made of brass having a thickness of 0.8 mm, a width of 5.0 mm and a length of 15 mm.
At the position where the circular hole 6 of the base material 2 is at the center, as shown in FIG. 1b, width 3 mm, length 3 mm, thickness 0.8 mm, width 0.2 mm at center of bottom, length An electrical contact 1 made of Pd-Ru 10 wt% having a projection 4 of 3 mm and a height of 0.1 mm,
The electric contact 3 was obtained by projection welding as shown in FIG.
次に従来例を説明すると、上記実施例と同一寸法、同
一材質で円孔６を有しない第３図に示す台材２の先端部
に、上記実施例と同一寸法、同一材質の電気接点１を、
プロジェクション溶接して電気接触子３を得た。Next, a conventional example will be described. An electrical contact 1 of the same size and the same material as that of the above-mentioned embodiment is attached to the tip portion of the base material 2 shown in FIG. To
The electric contact 3 was obtained by projection welding.
こうして得た実施例及び従来例の電気接触子各100ケ
の電気接点を溶接強度及び電気接点表面の外観を調べた
処、下記の表に示すような結果を得た。When the welding strength and the appearance of the surface of the electric contact of each of the electric contacts of the electric contacts of the examples and the conventional examples thus obtained were examined, the results shown in the following table were obtained.
上記の表で明らかなように従来例の電気接触子は、電
気接点表面に球面状の陥みの発生したものが100ケもあ
ったのに対し、実施例の電気接触子はそのようなものは
皆無であり、また電気接点の溶接強度は従来例の電気接
触子のそれと同等に高く且つばらつきが少なく安定して
いることが判る。 As is clear from the above table, the conventional electrical contactor had 100 spherical dents on the surface of the electrical contact, whereas the electrical contactor of the embodiment had such a configuration. It can be seen that the welding strength of the electric contact is as high as that of the electric contact of the conventional example and has little variation and is stable.
（発明の効果） 以上の説明で判るように本発明の電気接触子の製造方
法は、台材の電気接点溶接用位置の中央部に適当な大き
さの円孔を貫通穿設するので、電気接点のプロジェクシ
ョン溶接時円孔により溶接位置の中央部に熱が集中せ
ず、両側に分散される。従って電気接点表面に球面状の
陥みが発生せず、且つ電気接点の溶接強度が高く安定し
た電気接触子が得られるという優れた効果がある。(Effects of the Invention) As can be seen from the above description, in the method for manufacturing an electric contactor of the present invention, a circular hole of an appropriate size is formed through the central portion of the base material at the position for welding electric contacts, so that the electric contact Due to the circular hole at the time of projection welding of the contact, heat is not concentrated in the central portion of the welding position but is dispersed to both sides. Therefore, there is an excellent effect that a spherical recess does not occur on the surface of the electric contact and the electric contact has a high welding strength and a stable electric contact can be obtained.
また本発明の電気接触子の製造方法では、台材の円孔
からプロジェクション溶接による溶け出し状態を簡単に
確認できるという付随的効果を有する。Further, the method for manufacturing an electric contact according to the present invention has an additional effect that it is possible to easily confirm the melted state by projection welding from the circular hole of the base material.
第１図ａ、ｂ、ｃは本発明による電気接触子の製造方法
の一実施例の工程を示す図、第２図は従来の電気接触子
の製造方法を示す図、第３図は同じく従来の電気接触子
の製造方法を示す図、第４図は第３図の製造方法により
得られた電気接触子の電気接点の欠陥を示す図である。 １……電気接点 ２……台材 ３……電気接触子 ４……プロジェクション ６……円孔1a, 1b, 1c, 1c, 1c, 1c, 1d, 1c, 1c, 1c, 1d, 1c, 1c, 1d, 1c, 1c, 1d, 1c, 1d, 1c, 1c, 1d, 1c, 1d, 1c, 1d, or 10c, 1d, 2b, 2c, or 2d. FIG. 4 is a view showing a method of manufacturing the electric contact of FIG. 4, and FIG. 4 is a view showing defects of electric contacts of the electric contact obtained by the manufacturing method of FIG. 1 ... electrical contact 2 ... base material 3 ... electrical contactor 4 ... projection 6 ... circular hole
Claims (1)
溶接して電気接触子を製造する方法に於いて、台材の電
気接点が溶接される位置の中央部に適当な大きさの円孔
を貫通穿設した上で、電気接点を台材の片面にプロジェ
クション溶接することを特徴とする電気接触子の製造方
法。1. A method for producing an electric contact by projection-welding an electric contact on one surface of a base material, wherein a circular hole of an appropriate size is formed in a central portion of a position where the electric contact of the base material is welded. A method for manufacturing an electric contact, characterized in that the electric contact is projection-welded to one surface of a base material after being perforated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070579A JP2530839B2 (en) | 1987-03-25 | 1987-03-25 | Method of manufacturing electric contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070579A JP2530839B2 (en) | 1987-03-25 | 1987-03-25 | Method of manufacturing electric contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63236225A JPS63236225A (en) | 1988-10-03 |
| JP2530839B2 true JP2530839B2 (en) | 1996-09-04 |
Family
ID=13435603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62070579A Expired - Lifetime JP2530839B2 (en) | 1987-03-25 | 1987-03-25 | Method of manufacturing electric contact |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530839B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322571U (en) * | 1976-08-05 | 1978-02-25 | ||
| JPS5368887A (en) * | 1976-12-01 | 1978-06-19 | Omron Tateisi Electronics Co | Method of mounting contacts |
| JPS5445647A (en) * | 1977-09-17 | 1979-04-11 | Nippon Aviotronics Kk | Direct resistance welding |
-
1987
- 1987-03-25 JP JP62070579A patent/JP2530839B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63236225A (en) | 1988-10-03 |
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