JPS5818188Y2 - reed switch - Google Patents

reed switch

Info

Publication number
JPS5818188Y2
JPS5818188Y2 JP1978035940U JP3594078U JPS5818188Y2 JP S5818188 Y2 JPS5818188 Y2 JP S5818188Y2 JP 1978035940 U JP1978035940 U JP 1978035940U JP 3594078 U JP3594078 U JP 3594078U JP S5818188 Y2 JPS5818188 Y2 JP S5818188Y2
Authority
JP
Japan
Prior art keywords
piece
contact
movable
magnetic
fixed terminal
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
Application number
JP1978035940U
Other languages
Japanese (ja)
Other versions
JPS54139274U (en
Inventor
宮崎静彦
浅井三幸
藤原一志
Original Assignee
株式会社安川電機
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社安川電機 filed Critical 株式会社安川電機
Priority to JP1978035940U priority Critical patent/JPS5818188Y2/en
Publication of JPS54139274U publication Critical patent/JPS54139274U/ja
Application granted granted Critical
Publication of JPS5818188Y2 publication Critical patent/JPS5818188Y2/en
Expired legal-status Critical Current

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  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Description

【考案の詳細な説明】 本案は封入容器内に対向させて封書した固定および可動
接触片を外部磁界によって応動させるリードスイッチに
おいて、可動接触片の駆動に要する外部磁界の強さを小
さくして接点の開閉を確実に行ないうるようにしたもの
である。
[Detailed description of the invention] This invention is a reed switch in which fixed and movable contact pieces sealed facing each other in a sealed container are activated by an external magnetic field. This allows for reliable opening and closing of the door.

従来この種のリードスイッチは封入容器の両側に第1お
よび第2の固定端支片を封着し、第1の固定端子片の先
端部に固定接点を設け、第2の固定端子片にとりつけた
バネ性を有する可動片と磁性片をとりつけ、この可動片
に可動接点をそなえ、外部磁界により磁性片を介して接
点の開閉を行なうようにしである。
Conventionally, this type of reed switch has first and second fixed end pieces sealed on both sides of an enclosure, a fixed contact provided at the tip of the first fixed terminal piece, and attached to the second fixed terminal piece. A movable piece having spring properties and a magnetic piece are attached, and a movable contact is provided on the movable piece, and the contact is opened and closed by an external magnetic field via the magnetic piece.

したがって、接点の開路時に可動接点の動作を敏速にし
、接点の溶着を防止するために可動片のバネ力を大きく
する必要があり、閉路時はこのバネ力に抗して磁性片と
可動接点を移動させ閉路中の接触圧力を保持するために
大きな磁気駆動力をもった外部磁界を必要とする。
Therefore, it is necessary to increase the spring force of the movable piece in order to make the movable contact operate quickly when the contact opens, and to prevent the contacts from welding.When the contact is closed, the magnetic piece and the movable contact must resist this spring force. An external magnetic field with a large magnetic driving force is required to move and maintain the contact pressure during closing.

本案はこのような欠点を取り除くために改良を施したも
ので、以下図に示す実施例について説明する。
The present invention has been improved to eliminate such drawbacks, and the embodiment shown in the drawings will be described below.

1はガラス、セラミック等の非磁性材よりなりチッ素な
どの不活性ガスを封入した封入容器、2゜3は封入容器
の両側端より容器内に封着挿入された導電性磁性材より
なる第1および第2の固定端子片、2a138は前記固
定端子片の封入部分、4は第2の固定端子片3の封入部
分3aに一端を固定した銀糸合金等よりなるバネ力の弱
い導電性の可動片、5は前記可動片4の他端に固着し可
動片に沿って取り付けられた磁性片で、その一端に第1
の固定端子片2の封入部分端部の磁極面2bと対向する
磁極面5aを設け、他方端にL字状折曲片5bを形成し
、このL字状折曲片5bを第2の固定端子片3の封入部
分3a端部のL字状折曲片3bと磁気間隙を介して対向
させである。
1 is a sealed container made of a non-magnetic material such as glass or ceramic and filled with an inert gas such as nitrogen, and 2 and 3 are sealed containers made of a conductive magnetic material that are inserted into the container from both ends of the container. 1 and a second fixed terminal piece, 2a138 is an enclosed part of the fixed terminal piece, and 4 is a conductive movable member with a weak spring force made of a silver thread alloy or the like whose one end is fixed to the enclosed part 3a of the second fixed terminal piece 3. A piece 5 is a magnetic piece fixed to the other end of the movable piece 4 and attached along the movable piece, and a first piece is attached to one end of the magnetic piece.
A magnetic pole surface 5a is provided opposite to the magnetic pole surface 2b at the end of the enclosed portion of the fixed terminal piece 2, and an L-shaped bent piece 5b is formed at the other end, and this L-shaped bent piece 5b is used as a second fixed terminal. It is opposed to the L-shaped bent piece 3b at the end of the enclosed portion 3a of the terminal piece 3 via a magnetic gap.

6は磁性片5に設は可動片4と電気的に連結された可動
接点で、銀酸化カドニウム合金などの銀糸合金より構成
されている。
A movable contact 6 is provided on the magnetic piece 5 and electrically connected to the movable piece 4, and is made of a silver thread alloy such as a silver cadmium oxide alloy.

Iは可動片4のバネ力よりも大きいバネ力を有するモリ
ブデン等の導電性バネ材よりなる接触片で、その一端を
第1の固定端子片2の封入部分2aに固着し、前記封入
部分2aに沿って延長し封入部分2aの端部から突出さ
せて前記可動接点6に接離する接触面γbをそなえてい
る。
A contact piece I is made of a conductive spring material such as molybdenum and has a spring force larger than that of the movable piece 4. One end of the contact piece I is fixed to the enclosed part 2a of the first fixed terminal piece 2, and the said enclosed part 2a It is provided with a contact surface γb which extends along the movable contact 6, projects from the end of the enclosed portion 2a, and comes into contact with and separates from the movable contact 6.

7aは接触片Iの折り曲げ部で、接点の開路時は接触片
Iを封入部分2a端のバネ受け2cに圧接させ、接触予
備圧力を与えるようにしである。
Reference numeral 7a denotes a bent portion of the contact piece I, and when the contact is opened, the contact piece I is brought into pressure contact with the spring receiver 2c at the end of the enclosed portion 2a to apply a contact preliminary pressure.

8は可動片のストッパー、9は外部磁界を発生させる磁
石である。
8 is a stopper of the movable piece, and 9 is a magnet that generates an external magnetic field.

つぎに動作について説明すると、第1図はリードスイッ
チの開路状態を示すもので、い昔磁石9により外部磁界
が加えられると、磁性片5の磁極面5aと第1の固定端
子片2の磁極面2bとの間に磁気吸引力が働き、磁性片
5は可動片4の弱いバネ力に抗して矢印Aの方向に駆動
される。
Next, to explain the operation, FIG. 1 shows the open state of the reed switch. Long ago, when an external magnetic field was applied by the magnet 9, the magnetic pole face 5a of the magnetic piece 5 and the magnetic pole of the first fixed terminal piece 2 A magnetic attraction force acts between the movable piece 5 and the surface 2b, and the magnetic piece 5 is driven in the direction of arrow A against the weak spring force of the movable piece 4.

このため、磁性片5に取り付けた可動接点6が第1の固
定端子片に設けた接触片Iの接触面7bに接触し、さら
に磁性片5は、前記磁極面2b、5aとの磁気間隙の減
少に伴って増大した駆動力によりバネ力の強い接触片7
をバネ受け2cから離して押し下げ第2図に示すように
可動接点6に接触圧を加え、磁極面5aと2bとを接触
させ投入を完了する。
Therefore, the movable contact 6 attached to the magnetic piece 5 comes into contact with the contact surface 7b of the contact piece I provided on the first fixed terminal piece, and the magnetic piece 5 also has a magnetic gap between it and the magnetic pole faces 2b and 5a. The contact piece 7 has a strong spring force due to the increased driving force as it decreases.
is released from the spring receiver 2c and pushed down to apply contact pressure to the movable contact 6 as shown in FIG. 2, bringing the magnetic pole faces 5a and 2b into contact and completing the closing.

なお、投入状態ではL字状折曲片5bと3bの間隙が小
さくなり、接点の接触を確実にするように磁気吸引力が
作用する。
In addition, in the closed state, the gap between the L-shaped bent pieces 5b and 3b becomes small, and a magnetic attraction force acts to ensure the contact between the contacts.

つぎに外部磁界を取り除くと、接触片7と可動片4に蓄
積された戻し力により磁性片5は矢印Aと逆方向に復帰
する。
Next, when the external magnetic field is removed, the magnetic piece 5 returns in the direction opposite to the arrow A due to the return force accumulated in the contact piece 7 and the movable piece 4.

復帰当初は可動片4の弱いバネ力と可動接点6を介して
作用する接触片7の強しバネ力とにより急速に復帰方向
に駆動されるが、接触片7が第1の固定端子片端のバネ
受け2cに衝接係合すると、接触片γの移動が阻止され
、接触片7ばその反動により矢印A方向に強く反発して
可動点6から離開し、かつ、接触片7の自由長がバネ受
け2cとの係合によって短かくなるため、可動接点6と
の間に摺動作用を起し、接点相互の溶着をなくして確実
に離開させる。
At the beginning of the return, the weak spring force of the movable piece 4 and the strong spring force of the contact piece 7 acting through the movable contact 6 rapidly drive the contact piece 7 in the return direction. When the contact piece γ is engaged with the receiver 2c, the movement of the contact piece γ is prevented, and the reaction of the contact piece 7 strongly rebounds in the direction of arrow A and separates from the movable point 6. Since it is shortened by engagement with the receiver 2c, a sliding action is generated between the movable contact 6, eliminating welding of the contacts to each other and ensuring separation.

また、ストッパー8が封入容器1に衝突するときは、可
動片4による弱いバネ力のみであるため衝接による損傷
およびハンチングを防止し開路動作を円滑にする。
Further, when the stopper 8 collides with the enclosure 1, only a weak spring force is applied by the movable piece 4, so damage and hunting due to the collision are prevented, and the opening operation is made smooth.

本案は上述のように、第1の固定端子片にとりつけられ
可動接点と接触して接触圧力を与える接触片のバネ力を
、第2の固定端子片にとりつけ、可動接点と磁性片を支
持する可動片のバネ力よりも大きくしてあり、この接触
片の可動接点との接触面と固定部との間を、第1の固定
端子片のバネ受けに開路時に係合させであるから、閉路
時に磁極面相互の磁気空隙が大きいときはバネ力が小さ
く、磁気空隙が小さく磁気吸引力が大きくなったのちに
接触圧力を与えるに十分な大きいバネ力が作用するよう
になっているので、リードスイッチを駆動する駆動磁界
が小さくてすみ、バネ力の大きい接触片にバネ受けを設
けることにより開路時の可動接点との離開を確実にする
ことができる。
As described above, in this case, the spring force of the contact piece that is attached to the first fixed terminal piece and contacts the movable contact to apply contact pressure is attached to the second fixed terminal piece to support the movable contact and the magnetic piece. The spring force of the movable piece is greater than that of the movable piece, and the contact surface of this contact piece with the movable contact and the fixed part are engaged with the spring receiver of the first fixed terminal piece when the circuit is opened, so that the circuit is closed. Sometimes, when the magnetic gap between the pole faces is large, the spring force is small, and after the magnetic gap is small and the magnetic attractive force becomes large, a large enough spring force to apply contact pressure acts on the lead. The driving magnetic field for driving the switch can be small, and by providing a spring receiver on the contact piece with a large spring force, it is possible to ensure separation from the movable contact when the switch is opened.

なお、可動片をバネ性の弱い銀糸合金で構成し接触片を
バネ性の強いモリブデン材で構成するようにしておけば
、耐アーク性にもすぐれ、封着時の加工熱によるバネ性
劣化を生じないなどの実用的効果が顕著である。
In addition, if the movable piece is made of a silver thread alloy with weak spring properties and the contact piece is made of a molybdenum material with strong spring properties, it will have excellent arc resistance and prevent deterioration of the spring properties due to processing heat during sealing. It has remarkable practical effects, such as the fact that it does not occur.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本案実施の一例を示すもので、第1図は開路状態を
示す断面図、第2図は閉路状態を示す断面図である。 1は封入容器、2は第1の固定端子片、3は第2の固定
端子片、4は可動片、5は磁性片、6は可動接点、Iは
接触片、8はストッパー、9は磁石である。
The drawings show an example of the implementation of the present invention; FIG. 1 is a sectional view showing an open circuit state, and FIG. 2 is a sectional view showing a closed circuit state. 1 is an enclosure container, 2 is a first fixed terminal piece, 3 is a second fixed terminal piece, 4 is a movable piece, 5 is a magnetic piece, 6 is a movable contact, I is a contact piece, 8 is a stopper, 9 is a magnet It is.

Claims (1)

【実用新案登録請求の範囲】 1 非磁性材の封入容器と、封入容器内に一部を挿入し
て封着した磁性材よりなる第1および第2の固定端子片
と、前記第2の固定端子片の封入部分に一端を固定し他
端部に可動接点を設けたバネ性の可動片と、該可動片に
支持され一端を第1の固定端子片の封入部分に磁気間隙
をもって対向させた磁性片と、前記第1の固定端子片の
封入部分に固着し、この固定端子片端部から突出した部
分に前記可動接点と接触する接触面をもったバネ性の接
触片と、封入容器外に前記磁性片と第1の固定端子片の
封入部分との間に磁気吸引力を作用させる磁石とをそな
えたリードスイッチにおいて、前記第1の固定端子片の
封入部分端に、開路時は接触片の固着部と接触面との間
に係合し、閉路時には接触片から離開するバネ受けをそ
なえるとともに、接触片のバネ力を可動片のバネ力より
太きくしkことを特長とするリードスイッチ。 2 前記可動片が銀糸合金のバネ材で構成され、接触片
がモリブデン材のバネ材で構成されている実用新案登録
請求の範囲第1項記載のリードスイッチ。
[Claims for Utility Model Registration] 1. An encapsulating container made of a non-magnetic material, first and second fixed terminal pieces made of a magnetic material that are partially inserted into the encapsulating container and sealed, and the second fixed terminal piece. a spring-like movable piece having one end fixed to the enclosed part of the terminal piece and a movable contact provided at the other end; supported by the movable piece, and one end facing the enclosed part of the first fixed terminal piece with a magnetic gap. a magnetic piece, a springy contact piece that is fixed to the enclosed portion of the first fixed terminal piece and has a contact surface that contacts the movable contact at a portion protruding from the end of the fixed terminal piece, and In the reed switch, the reed switch includes a magnet that applies a magnetic attraction force between the magnetic piece and the enclosed part of the first fixed terminal piece, and a contact piece is attached to the end of the enclosed part of the first fixed terminal piece when the circuit is opened. A reed switch is provided with a spring receiver that engages between the fixed part of the switch and the contact surface and separates from the contact piece when the circuit is closed, and that the spring force of the contact piece is made greater than the spring force of the movable piece. 2. The reed switch according to claim 1, wherein the movable piece is made of a spring material made of silver thread alloy, and the contact piece is made of a spring material made of molybdenum material.
JP1978035940U 1978-03-20 1978-03-20 reed switch Expired JPS5818188Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1978035940U JPS5818188Y2 (en) 1978-03-20 1978-03-20 reed switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978035940U JPS5818188Y2 (en) 1978-03-20 1978-03-20 reed switch

Publications (2)

Publication Number Publication Date
JPS54139274U JPS54139274U (en) 1979-09-27
JPS5818188Y2 true JPS5818188Y2 (en) 1983-04-13

Family

ID=28896165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1978035940U Expired JPS5818188Y2 (en) 1978-03-20 1978-03-20 reed switch

Country Status (1)

Country Link
JP (1) JPS5818188Y2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551004Y2 (en) * 1973-03-02 1980-01-12

Also Published As

Publication number Publication date
JPS54139274U (en) 1979-09-27

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