JPS639332B2 - - Google Patents
Info
- Publication number
- JPS639332B2 JPS639332B2 JP18266481A JP18266481A JPS639332B2 JP S639332 B2 JPS639332 B2 JP S639332B2 JP 18266481 A JP18266481 A JP 18266481A JP 18266481 A JP18266481 A JP 18266481A JP S639332 B2 JPS639332 B2 JP S639332B2
- Authority
- JP
- Japan
- Prior art keywords
- piece
- fixed terminal
- fixed
- armature
- magnetic
- 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
- 235000014676 Phragmites communis Nutrition 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Landscapes
- Contacts (AREA)
Description
【発明の詳細な説明】
本発明はリードスイツチに関し、更に詳しくは
接極部の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reed switch, and more particularly to an improvement in an armature.
リードスイツチは、例えば第1図に示すように
ガラス、セラミツクス等の非磁性材よりなる封入
容器1内に窒素等の不活性ガスを封入すると共
に、封入部片2a,3aを容器1内にのぞませた
状態で第1及び第2の固定端子片2,3を封着
し、第2の固定端子片3の封入部分3aにバネ性
の支持片4を連設し、その支持片4の先端に磁極
片5をAg系材料にてなる可動接点6の背部8の
かしめピンをかしめることにより固定し、その一
端の接極部5aを第1の固定端子片2の封入部分
2aの接極部2bに磁気間隙をもつて対向させ、
磁極片5の他端に設けたL字状折曲部5bを第2
の固定端子片3の封入部分3aのL字状折曲部3
bに補助磁気間隙をもつて対向させ、バネ接触片
7を第1の固定端子片2の封入部分2aの一端に
固定し、第1の固定端子片2の封入部分2aの端
部にバネ圧力をもつて係止させ、その突出部に磁
極片5に設けた可動接点6に接離する固定接点7
aが設けられている。 For example, as shown in FIG. 1, the reed switch fills an inert gas such as nitrogen into an enclosure 1 made of a non-magnetic material such as glass or ceramics, and also inserts enclosure pieces 2a and 3a into the enclosure 1. The first and second fixed terminal pieces 2 and 3 are sealed in the desired state, and a spring support piece 4 is connected to the enclosed portion 3a of the second fixed terminal piece 3. The magnetic pole piece 5 is fixed to the tip by caulking the back part 8 of the movable contact 6 made of Ag-based material, and the armature part 5a at one end is connected to the enclosed part 2a of the first fixed terminal piece 2. facing the pole part 2b with a magnetic gap,
The L-shaped bent portion 5b provided at the other end of the magnetic pole piece 5 is
The L-shaped bent portion 3 of the enclosed portion 3a of the fixed terminal piece 3
b, facing each other with an auxiliary magnetic gap, fixing the spring contact piece 7 to one end of the enclosed part 2a of the first fixed terminal piece 2, and applying spring pressure to the end of the enclosed part 2a of the first fixed terminal piece 2. A fixed contact 7 which is engaged with and separated from a movable contact 6 provided on the magnetic pole piece 5 at its protrusion.
A is provided.
このように構成されたリードスイツチの接極部
2b,5aは、非磁性物質にて形成され、硬度が
大で耐摩耗性に優れ、導電物質であり、更には封
入容器1内に密封する際又は封着後の封着ガラス
焼純(歪取り)等の加熱時に軟化しないことなど
が必要である。このため従来は接極部2b,5a
の表面にRhメツキを施していたが、このRhメツ
キを施した接極部は、リードスイツチの投入、開
離の開閉動作を繰り返していくことによつて接点
部が摩耗し、Ag系の摩耗粉あるいは粒子が接極
部に混入し、このAg系の粒子と接極部とがステ
イツク現象を起し、第2図に示す機械耐久試験で
は開閉動作回数が約2000万回でステイツク現象が
見られ、また電気耐久試験においても同様な現象
が発生するが、この場合は接点部で移転現象が発
生して、この移転したものが脱離し接極部に混入
してステイツク現象を起し、これらのステイツク
現象がリードスイツチの寿命を縮める問題があつ
た。 The armature portions 2b and 5a of the reed switch configured in this way are made of a non-magnetic material, have high hardness, excellent wear resistance, and are a conductive material. Alternatively, it is necessary that the sealed glass does not soften during heating such as sintering (strain removal) after sealing. For this reason, conventionally the armature portions 2b, 5a
The surface of the armature was Rh-plated, but as the reed switch was repeatedly turned on and off, the contact part was worn out, causing Ag-based wear. Powder or particles get mixed into the contact part, and the Ag-based particles and the contact part cause a stuck phenomenon. In the mechanical durability test shown in Figure 2, the stuck phenomenon was observed after about 20 million opening/closing operations. A similar phenomenon also occurs in electrical durability tests, but in this case, a transfer phenomenon occurs at the contact, and this transferred material detaches and mixes with the contact, causing a stuck phenomenon. There was a problem that the stuck phenomenon shortened the life of the reed switch.
本発明は上述した問題点を解消し、接極部の表
面にCr被膜層を形成することによつて寿命を長
くしたリードスイツチを提供することを目的とす
る。 SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a reed switch which has a longer service life by forming a Cr coating layer on the surface of the armature.
この発明は非磁性の封入容器と、この封入容器
内に一部をのぞませて封着した第1及び第2の固
定端子片と、この第2の固定端子片に一端を固定
し、他端を第1の固定端子片の封入部分に向つて
延出させた導電性バネ材にてなる支持片と、この
支持片に取り付けて端部の接極部を第1の固定端
子片の封入部分の接極部に磁気間隙をもつて対向
させた磁性材よりなる磁極片と、この磁極片に取
に付けた可動接点と、第1の固定端子片の封入部
分端部にバネ力をもつて係止させ、その突出片に
前記可動接点に接離する固定接点を有する接触片
とをそなえ、磁気間隙をもつて対向した前記接極
部の表面をCr材よりなる被膜層によつて構成し
たことを特徴とするリードスイツチに係るもので
ある。 The present invention includes a non-magnetic enclosure, first and second fixed terminal pieces that are sealed and partially exposed inside the enclosure, one end fixed to the second fixed terminal piece, and the other fixed terminal pieces fixed to the second fixed terminal piece. A support piece made of a conductive spring material whose end extends toward the enclosed part of the first fixed terminal piece, and a support piece that is attached to this support piece so that the armature part of the end is enclosed in the first fixed terminal piece. A magnetic pole piece made of a magnetic material that faces the armature of the part with a magnetic gap, a movable contact attached to this magnetic pole piece, and a spring force at the end of the enclosed part of the first fixed terminal piece. The projecting piece is provided with a contact piece having a fixed contact that contacts and separates from the movable contact, and the surfaces of the armature parts facing each other with a magnetic gap are formed with a coating layer made of Cr material. This relates to a reed switch characterized by the following.
以下、本発明を第3図に示す実施例に基づいて
説明すれば、同図は本発明に係る第1図に示すリ
ードスイツチの要部を拡大した構成図であり、磁
極片5の先端に設けた接極部5aと、第1の固定
端子片2の封入部分2aの先端に設け、前記接極
部5aに磁気間隙をもつて対向した接極部2bと
の表面にCrメツキにて被膜層を形成したもので
ある。 Hereinafter, the present invention will be explained based on the embodiment shown in FIG. 3. This figure is an enlarged configuration diagram of the main part of the reed switch shown in FIG. The surfaces of the provided armature portion 5a and the armature portion 2b provided at the tip of the enclosed portion 2a of the first fixed terminal piece 2 and facing the armature portion 5a with a magnetic gap are coated with Cr plating. It is made up of layers.
このように構成することによつて、試験を行つ
た結果、リードスイツチの開閉動作を1億回行つ
てもステイツク現象の発生は認められることがな
かつた。これは、Crメツキを施した接極部2b,
5bの表面は開閉動作によりCrの摩耗粉が発生
するが、Cr粉はねばりけがないため接極部に発
生したCr粉は接極部から落下してしまうために
ステイツク現象が生じることがなく、開閉接点か
ら発生するAg粒子は前記Crの摩耗粉に付着して
Crの摩耗粉と共に落下するためステイツク現象
が生じることがないという理由に基づくものであ
る。 As a result of tests conducted with this configuration, no sticking phenomenon was observed even after the reed switch was opened and closed 100 million times. This consists of a Cr-plated armature part 2b,
Cr abrasion powder is generated on the surface of 5b due to opening and closing operations, but since Cr powder is not sticky, the Cr powder generated on the armature will fall from the armature, so no sticking phenomenon will occur. The Ag particles generated from the switching contacts adhere to the Cr wear powder.
This is based on the reason that the stick phenomenon does not occur because it falls together with the Cr wear particles.
また、接極部2b,5aに高抵抗のCr被膜層
を形成して接極部を介して両固定端子間に流れる
電流を抑制し、可動接点6から接触片7に電流を
流すようにしたのでリードスイツチの動作が確実
になるものである。 In addition, a high-resistance Cr coating layer is formed on the armatures 2b and 5a to suppress the current flowing between the two fixed terminals through the armatures, so that the current flows from the movable contact 6 to the contact piece 7. This ensures reliable operation of the reed switch.
上述したように、本発明によれば接極部の表面
にCr被膜層を形成したので、リードスイツチの
ステイツク現象を防止して寿命を長くし、かつ、
動作を確実にして、更に従来のRh被膜に比較し、
安価になり、しかもメツキ処理も簡単になるなど
の効果を奏するものである。 As described above, according to the present invention, since the Cr coating layer is formed on the surface of the armature, the stuck phenomenon of the reed switch is prevented and the life of the reed switch is extended, and
It ensures operation, and compared to conventional Rh coating,
This has advantages such as being less expensive and making the plating process easier.
第1図は本発明の係るリードスイツチの構成を
示す断面図、第2図は機械耐久試験特性図、第3
図は本発明に係る要部を拡大して示す一実施例の
構成図である。
1……封入容器、2……第1の固定端子片、3
……第2の固定端子片、2a,3a……封入部
片、2b,5a……接極部、3b,5b……L字
状折曲部、4……支持片、5……磁極片、6……
可動接点、7……接触片、7a……固定接点、8
……可動接点背部。
Fig. 1 is a sectional view showing the structure of a reed switch according to the present invention, Fig. 2 is a mechanical durability test characteristic diagram, and Fig. 3 is a sectional view showing the structure of a reed switch according to the present invention.
The figure is a configuration diagram of an embodiment showing an enlarged view of main parts according to the present invention. 1... Enclosure container, 2... First fixed terminal piece, 3
...Second fixed terminal piece, 2a, 3a...Encapsulating piece, 2b, 5a...Archive part, 3b, 5b...L-shaped bent part, 4...Support piece, 5...Magnetic pole piece , 6...
Movable contact, 7... Contact piece, 7a... Fixed contact, 8
...Movable contact back.
Claims (1)
をのぞませて封着した第1及び第2の固定端子片
と、この第2の固定端子片に一端を固定し、他端
を第1の固定端子片の封入部分に向つて延出させ
た導電性バネ材にてなる支持片と、この支持片に
取り付けて端部の接極部を第1の固定端子片の封
入部分の接極部に磁気間隙をもつて対向させた磁
性材よりなる磁極片と、この磁極片に取り付けた
可動接点と、第1の固定端子片の封入部分端部に
バネ圧力をもつて係止させ、その突出片に前記可
動接点に接離する固定接点を有する接触片とをそ
なえ、磁気間隙をもつて対向した前記接極部の表
面をCr材よりなる被膜層によつて構成したこと
を特徴とするリードスイツチ。1 A non-magnetic enclosure, a first and a second fixed terminal piece sealed with a part visible inside the enclosure, one end fixed to the second fixed terminal piece, and the other end fixed to the second fixed terminal piece. A support piece made of a conductive spring material extending toward the enclosed part of the first fixed terminal piece, and a support piece made of a conductive spring material that is attached to this support piece to connect the end terminal to the enclosed part of the first fixed terminal piece. A magnetic pole piece made of a magnetic material that faces the armature with a magnetic gap, a movable contact attached to the magnetic pole piece, and an end of the enclosed portion of the first fixed terminal piece are locked with spring pressure. , the protruding piece is provided with a contact piece having a fixed contact that contacts and separates from the movable contact, and the surface of the armature part facing with a magnetic gap is constituted by a coating layer made of Cr material. reed switch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18266481A JPS58161216A (en) | 1981-11-13 | 1981-11-13 | Lead switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18266481A JPS58161216A (en) | 1981-11-13 | 1981-11-13 | Lead switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58161216A JPS58161216A (en) | 1983-09-24 |
JPS639332B2 true JPS639332B2 (en) | 1988-02-27 |
Family
ID=16122271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18266481A Granted JPS58161216A (en) | 1981-11-13 | 1981-11-13 | Lead switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58161216A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0569957B2 (en) * | 1988-09-01 | 1993-10-04 | Obayashi Constr Co Ltd |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5365655B2 (en) | 2011-03-16 | 2013-12-11 | 株式会社安川電機 | Reed switch |
-
1981
- 1981-11-13 JP JP18266481A patent/JPS58161216A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0569957B2 (en) * | 1988-09-01 | 1993-10-04 | Obayashi Constr Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS58161216A (en) | 1983-09-24 |
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