JPS6136682B2 - - Google Patents
Info
- Publication number
- JPS6136682B2 JPS6136682B2 JP3228480A JP3228480A JPS6136682B2 JP S6136682 B2 JPS6136682 B2 JP S6136682B2 JP 3228480 A JP3228480 A JP 3228480A JP 3228480 A JP3228480 A JP 3228480A JP S6136682 B2 JPS6136682 B2 JP S6136682B2
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- cap
- terminal
- wire
- resistance wire
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 8
- 238000007747 plating Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Details Of Resistors (AREA)
Description
【発明の詳細な説明】
本発明は金属を抵抗体とする抵抗器例えば金属
皮膜抵抗器、巻線抵抗器に関し、その抵抗体と端
子の溶着を経済的に行うことのできるものを提供
することを目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistor using a metal as a resistor, such as a metal film resistor or a wire-wound resistor, and it is an object of the present invention to provide a resistor and a terminal that can be economically welded. The purpose is to
従来、これらの抵抗器における抵抗体と端子の
接合は、カシメ等の方法によつて接触接続されて
いたり、あるいは巻線抵抗器の一部のものの如く
抵抗体と端子をスポツト溶接もしくははんだ等の
低温ロー材を用いて溶着させる等していたが、い
ずれも、信頼性の面と経済性の面の相反する要素
を満足させうるものではなかつた。即ち、カシメ
等の接触接続構造の抵抗器においては、長期間の
使用に対して熱膨張係数の差から生じる抵抗体と
端子の間のギヤツプに酸化膜等が形成され、接触
抵抗の増大を来たすことにより、抵抗値の変化を
起こすことが多く、またスポツト溶接やはんだ付
け等による溶着を行うには、極めて大きな加工費
を要するものであり、いずれも満足できるもので
はなかつた。 Conventionally, the resistor and terminal in these resistors have been connected by contacting methods such as caulking, or, as in some wire-wound resistors, the resistor and terminal have been connected by spot welding, soldering, etc. Attempts have been made to weld the parts using low-temperature brazing material, but none of these methods have been able to satisfy the conflicting factors of reliability and economy. In other words, in resistors with a contact connection structure such as caulking, after long-term use, an oxide film is formed in the gap between the resistor and the terminal due to the difference in coefficient of thermal expansion, resulting in an increase in contact resistance. This often causes a change in resistance value, and welding by spot welding, soldering, etc. requires an extremely large processing cost, and neither of these methods is satisfactory.
かかる従来品の断面を示した第１図および第２
図に基づいて従来の巻線抵抗器における一例を説
明すると、図において、１はガラス繊維を多数本
集束した絶縁巻芯、２はアルミナ等の棒状絶縁巻
心である。第１図に示すものにおいてはガラス繊
維の集束巻心１上に連続的に抵抗線３を捲付けた
のち、所望するサイズに素子切断して抵抗素子個
片を作つたものに素子外径よりやや大きな内径を
もつキヤツプ状端子４を冠せてキヤツプ外周方向
から中心方向に４〜12面程度の分割チヤツクで加
圧することによりキヤツプ径を永久変化させ、抵
抗線３とキヤツプ４の接触接合を行うものであ
る。５はこのキヤツプ状端子に取付けたリード線
である。 FIGS. 1 and 2 show cross sections of such conventional products.
An example of a conventional wire-wound resistor will be explained based on the figure. In the figure, 1 is an insulating core made of a large number of glass fibers bundled together, and 2 is a rod-shaped insulating core made of alumina or the like. In the case shown in Fig. 1, a resistance wire 3 is continuously wound around a focused winding core 1 of glass fiber, and then the element is cut to a desired size to produce individual resistance element pieces. By placing a cap-shaped terminal 4 with a slightly larger inner diameter on top and applying pressure from the outer circumference of the cap toward the center using a split chuck with about 4 to 12 sides, the diameter of the cap is permanently changed and the contact bond between the resistance wire 3 and the cap 4 is established. It is something to do. 5 is a lead wire attached to this cap-shaped terminal.
第２図のものは、予め棒状絶縁巻芯２をキヤツ
プ状端子４に圧入したるのち、１素子ずつ抵抗線
３を巻芯上に捲付け、抵抗線の端部をキヤツプ状
端子の表面ではんだ等の低融点ロー材６で溶着接
合させたものである。 In the case shown in Fig. 2, a rod-shaped insulating winding core 2 is press-fitted into a cap-shaped terminal 4 in advance, and then a resistance wire 3 is wound on the winding core one element at a time, and the end of the resistance wire is wrapped around the surface of the cap-shaped terminal. They are welded and joined using a low melting point brazing material 6 such as solder.
第１図に示す自動化向きの構造を有するものは
接触接合のみである為、経済的効果は大ではある
が、信頼性の面、特に長期にわたる経劣化に関し
ては満足できないものであり、一方、第２図に示
す信頼性重視の構造を有するものは一個づつ手作
りに近い生産形態を取らねばならないといつた非
経済的なものである。 The structure shown in Figure 1, which is suitable for automation, is only contact bonding, so although it has a large economic effect, it is not satisfactory in terms of reliability, especially in terms of long-term deterioration. The structure shown in Figure 2, which emphasizes reliability, is uneconomical as it requires production of each piece by hand.
そこで本発明は、経済性の効果と信頼性の面の
良さを両立させることのできる抵抗器を提供する
ものである。 Therefore, the present invention provides a resistor that can achieve both economic efficiency and reliability.
以下、本発明の一実施例を示す第３図に従つて
説明する。図において７はキヤツプ状端子４の表
面に処理された４〜８％のリンを含有する銅メツ
キである。また８は含リン銅メツキ７を局部加熱
によつて溶解せしめ、抵抗線３とキヤツプ状端子
４を溶着させる為のプラズマスポツト溶接機の電
極である。溶着に際して銅メツキに含有されてい
るリンが被溶接物の表面酸化膜の環元作用をし、
750℃〜820℃程度の範囲で安定な溶着を可能にす
るものである。このメツキ層の厚みは８ミクロン
〜15ミクロンの厚目のメツキが効果的である。 An embodiment of the present invention will be described below with reference to FIG. 3. In the figure, 7 is a copper plating containing 4 to 8% phosphorus treated on the surface of the cap-shaped terminal 4. Reference numeral 8 designates an electrode of a plasma spot welding machine for melting the phosphorous-containing copper plating 7 by local heating and welding the resistance wire 3 and the cap-shaped terminal 4. During welding, the phosphorus contained in the copper plating acts as a ring source for the oxide film on the surface of the welded object.
It enables stable welding in the range of about 750°C to 820°C. As for the thickness of this plating layer, a thick plating of 8 to 15 microns is effective.
かかる本発明によれば、ガラス繊維等を用いた
自動化に最適な製造工法を採用しながらプラズマ
スポツト溶接などの技法を用いて容易に端子と抵
抗線とを溶着せしめることができ、信頼性の面の
大幅な改善を果すことができた。しかも極めて安
価に信頼性の高い抵抗器を得ることができた。 According to the present invention, it is possible to easily weld the terminal and the resistance wire using techniques such as plasma spot welding while employing a manufacturing method that is optimal for automation using glass fiber, etc., and improves reliability. was able to achieve a significant improvement. Moreover, it was possible to obtain a highly reliable resistor at an extremely low cost.
第１図および第２図は従来の巻線形の抵抗器の
断面図、第３図は本発明の一実施例における抵抗
器の断面図である。
３……抵抗線、４……端子、７……含リン銅メ
ツキ層、８……極部加熱用電極。
1 and 2 are cross-sectional views of a conventional wound type resistor, and FIG. 3 is a cross-sectional view of a resistor according to an embodiment of the present invention. 3... Resistance wire, 4... Terminal, 7... Phosphorus-containing copper plating layer, 8... Electrode for heating the pole portion.
Claims (1)
有する銅メツキを施した端子を上記抵抗体に接続
したことを特徴とする抵抗器。1. A resistor, characterized in that the resistor is made of metal, and a terminal whose surface is plated with copper containing 4 to 8% phosphorus is connected to the resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3228480A JPS56129302A (en) | 1980-03-13 | 1980-03-13 | Resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3228480A JPS56129302A (en) | 1980-03-13 | 1980-03-13 | Resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56129302A JPS56129302A (en) | 1981-10-09 |
| JPS6136682B2 true JPS6136682B2 (en) | 1986-08-20 |
Family
ID=12354659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3228480A Granted JPS56129302A (en) | 1980-03-13 | 1980-03-13 | Resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56129302A (en) |
-
1980
- 1980-03-13 JP JP3228480A patent/JPS56129302A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56129302A (en) | 1981-10-09 |
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