JP2024008552A - Rivet type contact - Google Patents

Rivet type contact Download PDF

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JP2024008552A
JP2024008552A JP2022110521A JP2022110521A JP2024008552A JP 2024008552 A JP2024008552 A JP 2024008552A JP 2022110521 A JP2022110521 A JP 2022110521A JP 2022110521 A JP2022110521 A JP 2022110521A JP 2024008552 A JP2024008552 A JP 2024008552A
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head
contact
gold
silver
alloy
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裕一郎 田中
Yuichiro Tanaka
安秀 平田
Yasuhide Hirata
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Chugai Electric Industrial Co Ltd
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Chugai Electric Industrial Co Ltd
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Priority to JP2022110521A priority Critical patent/JP2024008552A/en
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Abstract

To provide a rivet type contact in which a plating film 3 made of either gold or gold alloy is formed extremely thin, and the formation area of the plating film 3 is suppressed to the necessary minimum area X of the head 1, thereby achieving a significant cost reduction.SOLUTION: In a rivet type contact, the entire rivet including a head 1 and a foot 2 is made of contact material such as silver or silver alloy, alternatively, the head 1 is formed of a contact material such as silver or silver alloy, the foot 2 is formed from a base material such as copper or copper alloy, and furthermore, in a rivet type contact in which the plating film 3 of either gold or gold alloy is formed on the area of the head 1, the plating film 3 is formed only on the contact surface X of the head 1 with the mating material to a thickness of 0.1 μ to less than 3 μ such that initial contact reliability can be maintained.SELECTED DRAWING: Figure 1

Description

本発明は、スイッチ,リレー,サーモスタット,ブレーカー等の小型の電気機器に装着するリベット型接点に関するものである。 The present invention relates to a rivet-type contact that is attached to small electrical equipment such as switches, relays, thermostats, and breakers.

従来、電気機器に装備される相手材との接触面となる頭部と、電気機器の台金にカシメ止めするに用する足部とからなるリベット型接点は周知である(特許文献1)。このリベット型接点としては、一般に、頭部,足部を含むリベット全体を銀,銀合金等の接点材料で形成する無垢型と、頭部を銀,銀合金等の接点材料で形成し、足部を銅,銅合金等のベース材で形成する複合型のものと挙げられる。 BACKGROUND ART A rivet-type contact is conventionally known, which is composed of a head that is a contact surface with a mating member installed in an electrical device, and a foot that is used for caulking to the base metal of the electrical device (Patent Document 1). Generally speaking, these rivet-type contacts are of the solid type, in which the entire rivet including the head and foot is made of contact material such as silver or silver alloy, and the other is the solid type, in which the head is made of contact material such as silver or silver alloy, and the foot is made of contact material such as silver or silver alloy. It is a composite type in which the part is made of a base material such as copper or copper alloy.

そのリベット型接点においては、初期の接触信頼性を維持するため、金,金合金のメッキ被膜を相手材との接触面となる頭部に形成することも知られている。この金,金合金のメッキ被膜は、バレルメッキ法を適用することにより形成されている。 In the rivet type contact, in order to maintain initial contact reliability, it is also known to form a plating film of gold or gold alloy on the head, which is the contact surface with the mating material. This gold and gold alloy plating film is formed by applying a barrel plating method.

バレルメッキ法は、製品をバレルの内部に入れてメッキ液に浸漬させながらバレルを回転させてメッキする方法であり、小さな製品を一回のメッキ処理で大量に加工するのに適しているが、製品の全面にメッキ被膜を形成することになる。 The barrel plating method is a method of plating by placing the product inside the barrel and rotating the barrel while immersing it in the plating solution, and is suitable for processing large quantities of small products in one plating process. A plating film will be formed on the entire surface of the product.

そのため、バレルメッキ法を適用すると、金,金合金のいずれかによるメッキ被膜も頭部,足部を含むリベット全体に形成されることになる。然し、金,金合金は高価なものであり、金,金合金のいずれかによるメッキ被膜を大幅に減らすことが望まれる。かかる観点に基づき、リベット体の頭部を概ね覆う3μ厚みの金によるメッキ被膜を形成することが提案されている(非特許文献1)。 Therefore, when the barrel plating method is applied, a plating film of either gold or gold alloy will be formed over the entire rivet including the head and foot parts. However, gold and gold alloys are expensive, and it is desired to significantly reduce the amount of plating made of either gold or gold alloys. Based on this viewpoint, it has been proposed to form a gold plating film with a thickness of 3 μm that generally covers the head of the rivet body (Non-Patent Document 1).

実用新案登録第3098834号Utility model registration No. 3098834

Web頁:WWW.Taira-denki.Com/denki/index.htmi 電気接点材料 金メッキ接点の大幅コストダウン Web page: WWW. Taira-denki. Com/denki/index. htmi electrical contact materials Significant cost reduction of gold-plated contacts

本発明は、金,金合金のいずれかによるメッキ被膜を極薄に形成し、メッキ被膜の形成領域を頭部の必要最小限領域に抑えて大幅なコストダウンを図れるリベット型接点を提供することを目的とする。 The present invention provides a rivet type contact in which a plating film made of either gold or gold alloy is formed extremely thin, and the area where the plating film is formed is kept to the minimum required area of the head, thereby achieving a significant cost reduction. With the goal.

本願の請求項1に係るリベット型接点は、頭部,足部を含むリベット全体を銀,銀合金等の接点材料で形成し、又は、頭部を銀,銀合金等の接点材料で形成し、足部を銅,銅合金等のベース材で形成し、更に、金,金合金のいずれかによるメッキ被膜を該頭部の面領域に形成するリベット型接点において、
前記金,金合金いずれかによるメッキ被膜を初期接触信頼性の維持可能な0.1μ~3μ未満の厚みで前記頭部の相手材との接触面に限って形成したことを特徴とする。
The rivet type contact according to claim 1 of the present application has the entire rivet including the head and foot made of a contact material such as silver or a silver alloy, or the head made of a contact material such as silver or a silver alloy. , a rivet type contact in which the foot portion is formed of a base material such as copper or copper alloy, and a plated coating of either gold or gold alloy is formed on the surface area of the head,
The present invention is characterized in that the plated film made of either gold or gold alloy is formed only on the contact surface of the head with the mating material to a thickness of 0.1 μm to less than 3 μm that can maintain initial contact reliability.

本願の発明に係るリベット型接点では、金,金合金いずれかによるメッキ被膜を初期接触信頼性の維持可能な0.1μ~3μ未満厚みに形成し、且つ又、頭部の相手材との接触面に限って形成することにより、初期の接触信頼性を維持しながらもメッキ被膜を極薄に形成し、メッキ被膜の形成領域を頭部の必要最小限領域に抑えることから、スイッチ,リレー,サーモスタット,ブレーカー等の小型の電気機器に装着されるリベット型接点として大幅なコストダウンを図れる。 In the rivet type contact according to the invention of the present application, a plating film made of either gold or gold alloy is formed to a thickness of 0.1 μ to less than 3 μ so that initial contact reliability can be maintained, and the contact with the mating material of the head is By forming it only on the surface, the plating film can be formed extremely thin while maintaining initial contact reliability, and the area where the plating film is formed can be kept to the minimum necessary area on the head, making it suitable for switches, relays, It can be used as a rivet-type contact for small electrical equipment such as thermostats and breakers, resulting in significant cost reductions.

図1は、本発明に係るリベット型接点を示す断面図である。FIG. 1 is a sectional view showing a rivet-type contact according to the present invention. 図2は、図1のリベット型接点を示す側面図である。FIG. 2 is a side view showing the rivet type contact of FIG. 1.

図1,2のリベット型接点は、頭部1を銀,銀合金等の接点材料(以下、単に「銀」という。)で形成し、足部2を銅,銅合金等のベース材(以下、単に「銅」という。)で形成する複合リベット型のものが例示されている。この他に、頭部1,足部2を含むリベット全体を銀,銀合金等の接点材料で形成した無垢リベット型としても構成するようにできる。 In the rivet type contacts shown in Figures 1 and 2, the head 1 is made of a contact material such as silver or silver alloy (hereinafter simply referred to as "silver"), and the foot part 2 is made of a base material such as copper or copper alloy (hereinafter simply referred to as "silver"). , simply referred to as "copper") is exemplified. Alternatively, the entire rivet including the head 1 and foot 2 may be constructed as a solid rivet made of a contact material such as silver or silver alloy.

そのリベット型接点においては、メッキ被膜3が頭部1の面領域に形成されている。このメッキ被膜3は、金,金合金いずれか(以下、単に「金」という。)により形成されている。 In the rivet-type contact, a plated coating 3 is formed in the surface area of the head 1. This plating film 3 is formed of either gold or a gold alloy (hereinafter simply referred to as "gold").

そのメッキ被膜3は、初期の接触信頼性を維持可能な0.1μ~3μ未満の厚みの極薄なものに形成されている。また、小型な電気機器に装着される接触相手との頭部1における接触面(接触領域:頭部1の略半分程度)Xに限って形成されている。換言すれば、頭部1の非接触面(非接触領域)Yには形成されていない。 The plating film 3 is formed to be extremely thin with a thickness of 0.1 μ to less than 3 μ so that initial contact reliability can be maintained. Further, it is formed only on the contact surface (contact area: about half of the head 1) X of the head 1 with a contact partner attached to a small electric device. In other words, it is not formed on the non-contact surface (non-contact area) Y of the head 1.

このように構成するリベット型接点では、金によるメッキ被膜3を初期接触信頼性の維持可能な0.1μ~3μ未満の厚みに形成し、且つ又、頭部1における相手側との接触面Xに限って形成することにより、初期の接触信頼性を維持しながらもメッキ被膜3を極薄に形成し、メッキ被膜3の形成領域を頭部の必要最小限領域Xに抑えることから、スイッチ,リレー,サーモスタット,ブレーカー等の小型な電気機器に装着されるリベット型接点として大幅なコストダウンを図れる。 In the rivet type contact configured in this way, the gold plating film 3 is formed to a thickness of 0.1 μ to less than 3 μ, which is sufficient to maintain initial contact reliability, and the contact surface X of the head 1 with the other party is By forming the plating film 3 only on the head, the plating film 3 can be formed extremely thin while maintaining the initial contact reliability, and the formation area of the plating film 3 can be suppressed to the necessary minimum area X of the head. It can be used as a rivet-type contact for small electrical equipment such as relays, thermostats, and breakers, resulting in significant cost reductions.

メッキ被膜3の厚み制御は、メッキ中に流れる電流と時間の積で図れ、例えば0.1μと3μ未満とでは電流と時間の積を略30倍に設定すればよい。このように金によるメッキ被膜を形成すると、従来のバレルメッキで全面にメッキ被膜を形成する場合と比較し、メッキに使用する金の重量を約75%削減できる。 The thickness of the plating film 3 can be controlled by the product of the current flowing during plating and the time. For example, if the thickness is less than 0.1μ and 3μ, the product of the current and time may be set to approximately 30 times. By forming a gold plating film in this manner, the weight of gold used for plating can be reduced by about 75% compared to forming a plating film on the entire surface using conventional barrel plating.

1 頭部
2 足部
3 メッキ被膜
X 頭部1の相手材との接触面
1 Head 2 Foot 3 Plating coating X Contact surface of head 1 with mating material

Claims (1)

頭部,足部を含むリベット全体を銀,銀合金等の接点材料で形成し、又は、頭部を銀,銀合金等の接点材料で形成し、足部を銅,銅合金等のベース材で形成し、更に、金,金合金のいずれかによるメッキ被膜を該頭部の面積領域に形成するリベット型接点において、
前記金,金合金いずれかによるメッキ被膜を初期接触信頼性の維持可能な0.1μ~3μ未満の厚みで前記頭部の相手材との接触面に限って形成したことを特徴とするリベット型接点。
The entire rivet including the head and foot is made of a contact material such as silver or silver alloy, or the head is made of a contact material such as silver or silver alloy, and the foot is made of a base material such as copper or copper alloy. In a rivet-type contact formed of
A rivet type characterized in that a plating film made of either gold or gold alloy is formed only on the contact surface of the head with a mating material with a thickness of 0.1 μ to less than 3 μ, which can maintain initial contact reliability. contact.
JP2022110521A 2022-07-08 2022-07-08 Rivet type contact Pending JP2024008552A (en)

Priority Applications (1)

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JP2022110521A JP2024008552A (en) 2022-07-08 2022-07-08 Rivet type contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022110521A JP2024008552A (en) 2022-07-08 2022-07-08 Rivet type contact

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JP2024008552A true JP2024008552A (en) 2024-01-19

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JP2022110521A Pending JP2024008552A (en) 2022-07-08 2022-07-08 Rivet type contact

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