JPH05225879A - Contact closing device - Google Patents
Contact closing deviceInfo
- Publication number
- JPH05225879A JPH05225879A JP2688992A JP2688992A JPH05225879A JP H05225879 A JPH05225879 A JP H05225879A JP 2688992 A JP2688992 A JP 2688992A JP 2688992 A JP2688992 A JP 2688992A JP H05225879 A JPH05225879 A JP H05225879A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- movable
- iron core
- fixed
- electromagnet
- 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.)
- Pending
Links
Landscapes
- Electromagnets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電磁石の動作により接
点接離 (開閉) 動作を行う接点開閉装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact opening / closing device for performing contact / separation (opening / closing) operation by the operation of an electromagnet.
【０００２】[0002]
【従来の技術】この種の接点開閉装置は、模式的に示す
と、一般的に図５のような構成になっている。図におい
て、1 は固定接点板1aに設けた固定接点、2 は固定接点
1 に接離するべく可動接点板3 に設けた可動接点、4 は
ヨーク5 及び可動磁性部材、すなわち可動鉄心6 にて磁
路を形成し、可動鉄心6 の周囲に巻装された電磁コイル
7 の励磁を制御することにより可動鉄心6 が動作する電
磁石である。2. Description of the Related Art A contact switchgear of this type is generally constructed as shown in FIG. In the figure, 1 is a fixed contact provided on the fixed contact plate 1a, and 2 is a fixed contact.
A movable contact provided on the movable contact plate 3 for contact with and separated from 1, a yoke 5 and a movable magnetic member, that is, a magnetic core formed by the movable iron core 6, and an electromagnetic coil wound around the movable iron core 6.
This is an electromagnet whose movable iron core 6 operates by controlling the excitation of 7.
【０００３】可動接点板2 は、通常、導電性の弾性板材
にて形成され、基端側は基台B に貫通固設されて端子部
を兼ねる。この図では、各接点板1a,3がリード線L1,L2
にて端子部T1,T2 に接続するようにしている。従って端
子部T1,T2 間は、開閉すべき電路の一部となる。ヨーク
5 には、可動鉄心6 の一端部に対向する固定鉄心5aが設
けてあり、電磁コイル7 が無励磁のとき、所定間隙を形
成するように可動鉄心6 が位置する。電磁コイル7 は、
スイッチ8 を介して直流電源9 に接続される。The movable contact plate 2 is usually formed of a conductive elastic plate material, and the base end side thereof is fixedly penetrated through the base B so as to serve also as a terminal portion. In this figure, contact plates 1a and 3 are connected to lead wires L1 and L2.
Are connected to the terminal parts T1 and T2. Therefore, the terminals T1 and T2 become a part of the electric circuit to be opened and closed. yoke
A fixed iron core 5a facing the one end of the movable iron core 6 is provided at 5, and the movable iron core 6 is positioned so as to form a predetermined gap when the electromagnetic coil 7 is not excited. Electromagnetic coil 7
Connected to DC power supply 9 via switch 8.
【０００４】10はプラスチックのような絶縁材料製の可
動枠で、一端部は可動鉄心6 の他端部に連結されてこれ
に応動し、他端部は接点接離動作を行うべく可動接点板
3 を駆動する。Reference numeral 10 denotes a movable frame made of an insulating material such as plastic, one end of which is connected to the other end of the movable iron core 6 and responds to it, and the other end is a movable contact plate for performing contact and separation operations.
Drive 3
【０００５】この接点開閉装置は、電磁コイル7 が無励
磁のとき、図６に示すように、両接点1,2 は開離 (開
成) 状態にあり、電磁コイル7 を励磁すると、可動鉄心
6 が固定鉄心5aに吸引され、従って可動枠10が可動接点
板3 を押圧駆動し、可動接点2が固定接点1 に当接して
接触 (閉成) 状態となる。また、可動接点2 が固定接点
1 に当接 (投入) した直後から安定接触状態になるまで
の期間に、可動接点2 は固定接点1 上にてローリング動
作を行い、投入直後に軽溶着が発生した場合にそれを引
き外すようにしている。In this contact switchgear, when the electromagnetic coil 7 is not excited, both contacts 1 and 2 are in a separated (open) state as shown in FIG. 6, and when the electromagnetic coil 7 is excited, the movable iron core is moved.
6 is attracted to the fixed iron core 5a, and therefore the movable frame 10 presses the movable contact plate 3 to bring the movable contact 2 into contact with the fixed contact 1 to be in a contact (closed) state. Also, the movable contact 2 is a fixed contact.
The movable contact 2 performs a rolling operation on the fixed contact 1 during the period from when it contacts (makes) 1 until it reaches a stable contact state, and when light welding occurs immediately after making it, it is removed. I have to.
【０００６】[0006]
【発明が解決しようとする課題】前述した一般的な接点
開閉装置にあっては、投入時に大きな突入電流が流れる
ような負荷をもつ電路の開閉を行った場合、投入直後に
かなり強固な軽溶着が発生するが、可動鉄心6 の駆動力
(吸引力) ではローリング動作を行うことができないこ
とが起きる。In the general contact switchgear described above, when a circuit having a load such that a large inrush current flows at the time of closing is opened and closed, a fairly strong light welding is performed immediately after the closing. Occurs, but the driving force of the movable iron core 6
(Suction force) may prevent rolling operation.
【０００７】本発明は、かかる事由に鑑みてなしたもの
で、その目的とするところは、接点の投入時に発生する
軽溶着が引き外せる十分大きい駆動力 (吸引力) を可動
磁性部材に与えられる接点開閉装置を提供するにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a movable magnetic member with a sufficiently large driving force (suction force) capable of pulling out the light welding generated when the contacts are closed. It is to provide a contact switching device.
【０００８】[0008]
【課題を解決するための手段】かかる課題を解決するた
めに本発明の接点開閉装置は、固定接点と、固定接点に
接離するべく可動接点板に設けた可動接点と、ヨーク及
び可動磁性部材にて磁路を形成し磁路の一部に巻装され
た電磁コイルの励磁を制御することにより可動磁性部材
が動作する電磁石を有するとともに、可動磁性部材の動
作により可動接点板を駆動して接点接離動作を行う接点
開閉装置において、電磁石の磁路の一部に巻装される補
助コイルを両接点を通る電路に介挿した構成としてい
る。In order to solve such a problem, a contact switching device according to the present invention comprises a fixed contact, a movable contact provided on a movable contact plate to contact and separate from the fixed contact, a yoke and a movable magnetic member. A magnetic path is formed, and an electromagnet for operating the movable magnetic member by controlling the excitation of an electromagnetic coil wound around a part of the magnetic path is provided, and the movable contact member is driven by the operation of the movable magnetic member. In a contact opening / closing device that performs contact / separation operation, an auxiliary coil wound around a part of a magnetic path of an electromagnet is inserted in an electric path passing through both contacts.
【０００９】また、両接点を通る電路に整流回路を介挿
する構成とすることは、より好ましい。Further, it is more preferable that a rectifying circuit is inserted in an electric path passing through both contacts.
【００１０】[0010]
【作用】この構成によれば、接点投入時に大きな突入電
流が流れた場合、その電流が可動磁性部材の吸引力の増
大に寄与させることができる。また、両接点を通る電路
に整流回路を介挿すると、電路が交流の場合でも確実に
可動磁性部材の吸引力の増大に寄与させることができ
る。According to this structure, when a large rush current flows when the contacts are closed, the current can contribute to an increase in the attractive force of the movable magnetic member. Further, by inserting a rectifier circuit in the electric path that passes through both contacts, it is possible to reliably contribute to an increase in the attractive force of the movable magnetic member even when the electric path is alternating current.
【００１１】[0011]
【実施例】以下、本発明の第１実施例を図１及び図２に
基づいて説明する。なお、従来例のものと実質的に同様
の部材には同一の符号を付しており、図１では一般例の
説明と同様、模式的に示している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In addition, the substantially same members as those in the conventional example are denoted by the same reference numerals, and are schematically shown in FIG. 1 as in the description of the general example.
【００１２】1 は固定接点板1aに設けた固定接点であ
り、この固定接点板1aは適宜基台に固設し、リード線L1
にて端子部T1に電気的に接続される。なお、固定接点板
1aを基台に貫通固設し、その突出した端部を端子部とし
てもよい。Reference numeral 1 denotes a fixed contact provided on the fixed contact plate 1a. This fixed contact plate 1a is appropriately fixed to a base and fixed to a lead wire L1.
Is electrically connected to the terminal portion T1. Fixed contact plate
The 1a may be fixed through the base, and the protruding end portion may be used as the terminal portion.
【００１３】2 は可動接点であり、固定接点1 に接離す
るべく可動接点板3 の先端部に設けられる。可動接点板
3 は、導電性の弾性板材にて長板状に形成されて基端部
側は基台B に固設される。この場合、基端部側は基台B
に貫通固設してもよいが、いずれの場合も基端部側の適
宜箇所にリード線L3の一端が接続される。リード線L3の
他端は、後述する補助コイルに接続される。Reference numeral 2 denotes a movable contact, which is provided at the tip of the movable contact plate 3 so as to contact and separate from the fixed contact 1. Movable contact plate
A conductive elastic plate member 3 is formed into a long plate shape, and the base end side thereof is fixed to the base B. In this case, the base end side is base B
However, in either case, one end of the lead wire L3 is connected to an appropriate position on the base end side. The other end of the lead wire L3 is connected to an auxiliary coil described later.
【００１４】4 は電磁石であり、ヨーク5 、可動磁性部
材、すなわち可動鉄心6 、電磁コイル7 等により構成さ
れる。ヨーク5 は、対向片5b,5c と連結片5dとによりコ
字状をなし、対向片5b,5c が可動接点板3 に略平行とな
るよう適宜配設される。そして、可動接点板3 から遠い
方の対向片5cには、固定鉄心5aが固着してある。可動鉄
心6 は、棒状をなし、固定鉄心5aと同軸的に図示しない
コイル枠の内空部に移動自在に支持される。また可動鉄
心6 は、図示しない復帰ばねにより、固定鉄心5aから離
反する方向にばね付勢されている。電磁コイル7 は、図
示しないコイル枠に巻装され、スイッチ8 を介して直流
電源9 に接続される。Reference numeral 4 is an electromagnet, which is composed of a yoke 5, a movable magnetic member, that is, a movable iron core 6, an electromagnetic coil 7, and the like. The yoke 5 is U-shaped by the facing pieces 5b and 5c and the connecting piece 5d, and is appropriately arranged so that the facing pieces 5b and 5c are substantially parallel to the movable contact plate 3. A fixed iron core 5a is fixed to the facing piece 5c farther from the movable contact plate 3. The movable iron core 6 has a rod shape and is movably supported coaxially with the fixed iron core 5a in an inner space of a coil frame (not shown). The movable iron core 6 is biased by a return spring (not shown) in a direction away from the fixed iron core 5a. The electromagnetic coil 7 is wound around a coil frame (not shown) and connected to the DC power source 9 via the switch 8.
【００１５】この電磁石4 は、ヨーク5 及び固定鉄心5a
と可動鉄心6 にて磁路を形成し、電磁コイル7 の励磁を
制御することにより可動鉄心6 が動作する。すなわち励
磁すると可動鉄心6 は固定鉄心5aに吸引され、励磁を停
止すると可動鉄心6 は固定鉄心5aから離反するように動
作する。従って、無励磁のとき、可動鉄心6 の一端部と
固定鉄心5aとは所定間隙を形成して対向する。The electromagnet 4 includes a yoke 5 and a fixed iron core 5a.
By forming a magnetic path with the movable iron core 6 and controlling the excitation of the electromagnetic coil 7, the movable iron core 6 operates. That is, when excited, the movable iron core 6 is attracted to the fixed iron core 5a, and when the excitation is stopped, the movable iron core 6 operates so as to separate from the fixed iron core 5a. Therefore, at the time of non-excitation, one end of the movable iron core 6 and the fixed iron core 5a face each other with a predetermined gap.
【００１６】10はプラスチックのような絶縁材料製の可
動枠であり、一端部は可動鉄心6 の他端部に連結されて
これに応動し、他端部は接点接離動作を行うべく可動接
点板3 の中間部を駆動する。Reference numeral 10 denotes a movable frame made of an insulating material such as plastic. One end is connected to the other end of the movable iron core 6 and responds to it, and the other end is a movable contact for performing contact contact / separation operation. Drive the middle part of plate 3.
【００１７】11は補助コイルであり、少ない巻数で電磁
コイル7 と同様に、図示しないコイル枠に巻装され、端
末の一方は前述したリード線L3の他端に、端末の他方は
リード線L4を介して端子部T2に接続される。従って補助
コイル11は、電磁石4 の磁路の一部に巻装されるととも
に両接点1,2 を通る電路に介挿されたこととなる。Reference numeral 11 denotes an auxiliary coil, which is wound around a coil frame (not shown) with a small number of turns in the same manner as the electromagnetic coil 7. One of the terminals is the other end of the lead wire L3 described above, and the other of the terminals is the lead wire L4. Is connected to the terminal portion T2 via. Therefore, the auxiliary coil 11 is wound around a part of the magnetic path of the electromagnet 4 and is inserted in the electric path passing through both the contacts 1 and 2.
【００１８】この接点開閉装置は、電磁コイル7 が無励
磁のとき、図１に示すように、両接点1,2 は開離 (開
成) 状態にあり、電磁コイル7 を励磁すると、可動鉄心
6 が固定鉄心5aに吸引され、従って可動枠10が可動接点
板3 を押圧駆動し、可動接点2が固定接点1 に当接して
接触 (閉成) 状態となる。また、可動接点2 が固定接点
1 に当接 (投入) した直後から安定接触状態になるまで
の期間に、可動接点2 は固定接点1 上にてローリング動
作を行い、投入直後に軽溶着が発生した場合にそれを引
き外すようにしている。加えて、投入時に大きな突入電
流が流れるような負荷をもつ電路の開閉を行った場合、
その突入電流は補助コイル11に流れるので可動鉄心6 の
駆動力 (吸引力) は十分に大きいものとなる。In this contact switchgear, when the electromagnetic coil 7 is not excited, both contacts 1 and 2 are in a separated (open) state as shown in FIG. 1, and when the electromagnetic coil 7 is excited, the movable core is moved.
6 is attracted to the fixed iron core 5a, and therefore the movable frame 10 presses the movable contact plate 3 to drive the movable contact 2 into contact with the fixed contact 1 to be in a contact (closed) state. In addition, the movable contact 2 is a fixed contact.
The movable contact 2 performs rolling operation on the fixed contact 1 during the period from immediately after contact (make-up) to 1 until the stable contact state, and if light welding occurs immediately after make-up, it is to be removed. I have to. In addition, when opening and closing an electric circuit with a load that causes a large inrush current to flow when it is turned on,
Since the rush current flows through the auxiliary coil 11, the driving force (suction force) of the movable iron core 6 is sufficiently large.
【００１９】このような動作を、図２に基づいてさらに
詳しく説明すると、図２(a) は時間t の経過に対する可
動鉄心6 の変位量m と突入電流Ipを示している。すなわ
ち電磁コイル7 が励磁されると可動鉄心6 は固定鉄心5a
に吸引されて変位を開始し、時間t1後にm1だけ変位して
接点が投入され、そして突入電流Ipが流れる。可動接点
2 は、正常動作の場合には実線で示すように、t1時点よ
りローリングを開始してt3時点まで、従ってm3まで変位
する。しかしながら、t2時点にてm2だけ変位して軽溶着
が発生し、しかも従来のもののように可動鉄心6 の吸引
力が小さくてこれを引き外すことができない場合には、
破線で示すように可動鉄心6 の変位は停止してしまう。This operation will be described in more detail with reference to FIG. 2. FIG. 2 (a) shows the displacement amount m of the movable iron core 6 and the inrush current Ip with the passage of time t. That is, when the electromagnetic coil 7 is excited, the movable iron core 6 moves to the fixed iron core 5a.
Is started to be displaced, and after a lapse of time t1, it is displaced by m1 to close the contact, and an inrush current Ip flows. Moving contact
In the case of normal operation, as shown by the solid line, 2 starts rolling from the time t1 and moves to the time t3, and thus to the m3. However, if the movable iron core 6 cannot be removed due to the small suction force of the movable iron core 6 as in the conventional one, it is displaced by m2 at time t2 to cause light welding.
As shown by the broken line, the displacement of the movable iron core 6 stops.
【００２０】また、図２(b) には時間の経過に対する可
動鉄心6 の吸引力f を示している。このような電磁石に
おける可動鉄心6 の吸引力f は、大略アンペアターン
(電流×電磁コイル7 の巻数) に比例し、また両鉄心5a,
6間の空隙に反比例するので、突入電流が殆どない場合
は実線のように、大きな突入電流がある場合には破線の
ように変化する。従って、大きな突入電流が流れて、前
述したようにt2時点にて可動鉄心6 がm2だけ変位して軽
溶着が発生したとしても、その突入電流Ipは補助コイル
11を流れてそれに応じた吸引力を電磁コイル7 による吸
引力に重畳し、十分に大きな吸引力が可動鉄心6 に与え
られて軽溶着を引き外すことができる。FIG. 2 (b) shows the attraction force f of the movable iron core 6 with the passage of time. The attraction force f of the movable iron core 6 in such an electromagnet is roughly equal to the ampere turn.
Proportional to (current x number of turns of electromagnetic coil 7), both cores 5a,
Since it is inversely proportional to the air gap between 6, it changes like a solid line when there is almost no inrush current, and changes like a broken line when there is a large inrush current. Therefore, even if a large inrush current flows and the movable iron core 6 is displaced by m2 and light welding occurs at time t2 as described above, the inrush current Ip is equal to that of the auxiliary coil.
The suction force corresponding to the current flows through 11 and is superposed on the suction force by the electromagnetic coil 7, and a sufficiently large suction force is applied to the movable iron core 6 to remove the light welding.
【００２１】例えば、定格10A の電磁リレーであればそ
の電磁石は通常 200アンペアターン程度とするが、突入
電流が 100A であれば補助コイル11の巻数が 2T であっ
ても200アンペアターンが得られるのである。For example, in the case of an electromagnetic relay with a rating of 10A, the electromagnet normally has about 200 ampere turns, but if the inrush current is 100A, 200 ampere turns can be obtained even if the number of turns of the auxiliary coil 11 is 2T. is there.
【００２２】次に、本発明の第２実施例を図３に基づい
て説明する。このものは、第１実施例にダイオードブリ
ッジからなる整流回路12を付加したもので、その他は第
１実施例と同様であるため整流回路12に関する部分のみ
説明する。すなわち、整流回路12は、一方の入力端Itと
可動接点板3 間をリード線L5にて、他方の入力端Itと端
子部T2間をリード線L6にて、各出力端Ot,Ot と補助コイ
ル11間をリード線L7,L8 にてそれぞれ接続して両接点1,
2 を通る電路に介挿されている。Next, a second embodiment of the present invention will be described with reference to FIG. This one is obtained by adding a rectifier circuit 12 composed of a diode bridge to the first embodiment, and other parts are the same as those in the first embodiment, so only the part related to the rectifier circuit 12 will be described. That is, the rectifier circuit 12 has a lead wire L5 between one input terminal It and the movable contact plate 3, a lead wire L6 between the other input terminal It and the terminal portion T2, and each output terminal Ot, Ot and auxiliary. Connect the coils 11 with lead wires L7 and L8 to connect both contacts 1,
It is inserted in the electric line that passes through 2.
【００２３】このものは、補助コイル11に突入電流を整
流した直流が流れるので、その吸引力は確実に電磁コイ
ル7 の吸引力に重畳されるものとなる。In this device, since the direct current obtained by rectifying the inrush current flows through the auxiliary coil 11, its attracting force is surely superposed on the attracting force of the electromagnetic coil 7.
【００２４】次に、本発明の第３実施例を図４に基づい
て説明する。このものは、第１、第２実施例の電磁石が
無極型であったものに対し、有極型の電磁石を用いてい
る。Next, a third embodiment of the present invention will be described with reference to FIG. In contrast to the non-polar type electromagnets of the first and second embodiments, this type uses a polar type electromagnet.
【００２５】固定接点1 は、固定接点板1aに設けられ、
その固定接点板1aは基台に貫通固設されてその端部は端
子部T1を兼ねている。可動接点2 は、可動接点板3 の先
端部に設けられ、その可動接点板3 の基端部は基台B に
固設された支持板3aに固定されている。この支持板3aと
整流回路12の一方の入力端Itはリード線L9にて接続され
る。また、基台B には端子部T2となる端子板が貫通固設
されており、これと整流回路12の他方の入力端Itはリー
ド線L10 にて接続されている。The fixed contact 1 is provided on the fixed contact plate 1a,
The fixed contact plate 1a is fixedly penetrated through the base, and its end portion also serves as the terminal portion T1. The movable contact 2 is provided at the tip of the movable contact plate 3, and the base end of the movable contact plate 3 is fixed to a support plate 3a fixed to the base B. The support plate 3a and one input terminal It of the rectifier circuit 12 are connected by a lead wire L9. Further, a terminal plate serving as a terminal portion T2 is penetratingly fixed to the base B, and the other input end It of the rectifier circuit 12 is connected with a lead wire L10.
【００２６】電磁石4 は、ヨーク5 、可動磁性部材、す
なわち永久磁石13を含む可動接極子14、電磁コイル7 等
により構成される。ヨーク5 は、基本的には対向片5b,5
c と連結片5dとによりコ字状をなし、その開放端では一
方の対向片5bを中央接極片、他方の対向片5cを対向接極
片としている。可動接極子14は、対向接極片14a,14bと
永久磁石13にてコ字状をなし、後述する可動枠に装着さ
れる。電磁コイル7 は、一方の対向片5bの周囲に巻装さ
れ、電流の方向を交互に切り換えるスイッチ8を介して
図示しない直流電源に接続される。The electromagnet 4 is composed of a yoke 5, a movable magnetic member, that is, a movable armature 14 including a permanent magnet 13, an electromagnetic coil 7, and the like. The yoke 5 is basically a facing piece 5b, 5
C and the connecting piece 5d form a U-shape, and at the open end, one opposing piece 5b is a central contact piece and the other opposing piece 5c is an opposite contact piece. The movable armature 14 is formed in a U shape by the opposing armature pieces 14a and 14b and the permanent magnet 13, and is attached to a movable frame described later. The electromagnetic coil 7 is wound around one opposing piece 5b, and is connected to a DC power source (not shown) via a switch 8 that alternately switches the current direction.
【００２７】プラスチックのような絶縁材料製の可動枠
10は、基端部が軸10a に回動可能に支持され、その自由
端部に前述の可動接極子14を装着している。これにより
可動接極子14の各対向接極片14a,14b は、ヨーク5 の中
央接極片と各対向接極片間に位置する。また可動枠10
は、その中間部に可動接点板3 を駆動するＬ字状の駆動
片10b を連設している。Movable frame made of an insulating material such as plastic
A base 10 of the base 10 is rotatably supported by a shaft 10a, and the movable armature 14 is attached to the free end thereof. As a result, the opposing armature pieces 14a and 14b of the movable armature 14 are located between the central armature piece of the yoke 5 and the respective armature pieces. Also movable frame 10
Is provided with an L-shaped drive piece 10b for driving the movable contact plate 3 in a middle portion thereof.
【００２８】この電磁石4 は、ヨーク5 及び可動接極子
14にて磁路を形成し、電磁コイル7の励磁を制御するこ
とにより可動接極子14が動作する。すなわち電磁コイル
7 を励磁していないとき、可動接極子14はいずれかの方
向に寄って静止しており、次いで永久磁石13の磁束を打
ち消す方向に電磁コイル7 を励磁すると、別の静止位置
に向かって動作する。The electromagnet 4 includes a yoke 5 and a movable armature.
By forming a magnetic path at 14 and controlling the excitation of the electromagnetic coil 7, the movable armature 14 operates. Ie electromagnetic coil
When 7 is not excited, the movable armature 14 stands still in either direction, and when the electromagnetic coil 7 is then excited in the direction to cancel the magnetic flux of the permanent magnet 13, it moves toward another stationary position. To do.
【００２９】補助コイル11は、少ない巻数で他方の対向
片5cの周囲に巻装され、各端末はリード線L3の他端に、
端末の他方はリード線L11,L12 を介して整流回路12の出
力端Ot,Ot に接続される。従って補助コイル11は、電磁
石4 の磁路の一部に巻装されるとともに両接点1,2 を通
る電路に整流回路12とともに介挿されたこととなる。The auxiliary coil 11 is wound around the other opposing piece 5c with a small number of turns, and each terminal is attached to the other end of the lead wire L3.
The other end of the terminal is connected to the output terminals Ot, Ot of the rectifier circuit 12 via lead wires L11, L12. Therefore, the auxiliary coil 11 is wound around a part of the magnetic path of the electromagnet 4 and is inserted together with the rectifier circuit 12 in the electric path passing through the contacts 1 and 2.
【００３０】このものも、投入時に大きな突入電流が流
れるような負荷をもつ電路の開閉を行った場合、その突
入電流は補助コイル11に流れるので可動接極子14の駆動
力 (吸引力) は十分に大きいものとなる。Also in this device, when an electric circuit having a load such that a large rush current flows at the time of closing is opened / closed, the rush current flows to the auxiliary coil 11, so that the driving force (attraction force) of the movable armature 14 is sufficient. It will be large.
【００３１】なお、補助コイルの巻数の設定等は可動接
点板の弾性強度等を考慮して設定する。また、本発明に
よれば、可動磁性部材の吸引力はかなりの範囲で大きく
できるものの、可動接点板がその力を可動接点に伝達で
きる限界がある。従って、そのような場合は、可動接点
板を剛体にして基本的な動作もなし得るようにすると本
発明の波及効果はより大きいものとなる。The number of turns of the auxiliary coil is set in consideration of the elastic strength of the movable contact plate. Further, according to the present invention, although the attractive force of the movable magnetic member can be increased in a considerable range, there is a limit that the movable contact plate can transmit the force to the movable contact. Therefore, in such a case, if the movable contact plate is made to be a rigid body so that it can also perform a basic operation, the ripple effect of the present invention becomes greater.
【００３２】[0032]
【発明の効果】本発明の接点開閉装置は、接点投入時に
大きな突入電流が流れた場合、その電流が可動磁性部材
の吸引力の増大に寄与させることができ、また、両接点
を通る電路に整流回路を介挿すると、電路が交流の場合
でも確実に可動磁性部材の吸引力の増大に寄与させるこ
とができ、よって耐溶着性能の向上が図れる。According to the contact opening / closing device of the present invention, when a large inrush current flows at the time of making a contact, the current can contribute to an increase in the attractive force of the movable magnetic member, and the electric path passing through both contacts can be made. By inserting the rectifier circuit, it is possible to surely contribute to the increase of the attractive force of the movable magnetic member even when the electric path is an alternating current, and thus the welding resistance performance can be improved.
【図１】本発明の第１実施例を示す模式図である。FIG. 1 is a schematic diagram showing a first embodiment of the present invention.
【図２】その動作を説明図で、(a) は時間−変位量特
性、(b) は時間−吸引力特性である。FIG. 2 is an explanatory diagram of the operation, in which (a) is a time-displacement amount characteristic and (b) is a time-suction force characteristic.
【図３】本発明の第２実施例を示す模式図である。FIG. 3 is a schematic diagram showing a second embodiment of the present invention.
【図４】本発明の第３実施例を示す分解斜視図である。FIG. 4 is an exploded perspective view showing a third embodiment of the present invention.
【図５】一般的な接点開閉装置を示す模式図である。FIG. 5 is a schematic view showing a general contact switching device.
1 固定接点 2 可動接点 3 可動接点板 4 電磁石 5 電磁石のヨーク 6 電磁石の可動磁性部材 (可動鉄心、可動接極子) 7 電磁コイル 10 可動枠 11 補助コイル 12 整流回路 1 Fixed contact 2 Movable contact 3 Movable contact plate 4 Electromagnet 5 Electromagnet yoke 6 Electromagnet movable magnetic member (movable iron core, movable armature) 7 Electromagnetic coil 10 Movable frame 11 Auxiliary coil 12 Rectifier circuit
Claims (2)
可動接点板に設けた可動接点と、ヨーク及び可動磁性部
材にて磁路を形成し磁路の一部に巻装された電磁コイル
の励磁を制御することにより可動磁性部材が動作する電
磁石を有するとともに、可動磁性部材の動作により可動
接点板を駆動して接点接離動作を行う接点開閉装置にお
いて、電磁石の磁路の一部に巻装される補助コイルを両
接点を通る電路に介挿したことを特徴とする接点開閉装
置。1. An electromagnetic coil in which a fixed contact, a movable contact provided on a movable contact plate to contact and separate from the fixed contact, a yoke and a movable magnetic member form a magnetic path and which is wound around a part of the magnetic path. In a contact opening / closing device that has an electromagnet whose movable magnetic member operates by controlling the excitation of, and drives the movable contact plate by the operation of the movable magnetic member to perform contacting / separating operation, a part of the magnetic path of the electromagnet is A contact opening / closing device characterized in that an auxiliary coil to be wound is inserted in an electric path passing through both contacts.
てなる請求項１記載の接点開閉装置。2. The contact switchgear according to claim 1, wherein a rectifying circuit is inserted in an electric path passing through both contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2688992A JPH05225879A (en) | 1992-02-13 | 1992-02-13 | Contact closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2688992A JPH05225879A (en) | 1992-02-13 | 1992-02-13 | Contact closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05225879A true JPH05225879A (en) | 1993-09-03 |
Family
ID=12205825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2688992A Pending JPH05225879A (en) | 1992-02-13 | 1992-02-13 | Contact closing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05225879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020012705A1 (en) * | 2018-07-13 | 2020-01-16 | オムロン株式会社 | Enclosed relay |
-
1992
- 1992-02-13 JP JP2688992A patent/JPH05225879A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020012705A1 (en) * | 2018-07-13 | 2020-01-16 | オムロン株式会社 | Enclosed relay |
| JP2020013661A (en) * | 2018-07-13 | 2020-01-23 | オムロン株式会社 | Closed relay |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180061600A1 (en) | Electromagnetic relay | |
| US6853275B2 (en) | Electromagnetic relay | |
| WO1991019313A1 (en) | Solenoids | |
| JP4667664B2 (en) | Power switchgear | |
| EP1128409A2 (en) | Electromagnet and switch operating mechanism | |
| US4609965A (en) | Magnetic clutch | |
| JPH10144171A (en) | Current switching device having arc-extinguishing mechanism | |
| JPH0143972B2 (en) | ||
| JPH05225879A (en) | Contact closing device | |
| JP4629271B2 (en) | Operation device for power switchgear | |
| CN104364870A (en) | Electrical switching apparatus and relay including a ferromagnetic or magnetic armature having a tapered portion | |
| JPH0746555B2 (en) | Electromagnetic relay | |
| JP2003016887A (en) | Operating device for power switchgear | |
| JPH0428135A (en) | Remote control relay | |
| JP4515664B2 (en) | Power switchgear operating device | |
| JP2833075B2 (en) | Contact device | |
| JPH06260070A (en) | Electromagnetic relay | |
| JPH0428130A (en) | Remote control relay | |
| JP2000082374A (en) | Electromagnet device for electromagnetic contactor | |
| US4673908A (en) | Polarized relay | |
| KR100480839B1 (en) | core for magnectic contactor | |
| JPH0357203A (en) | Electromagnetic apparatus and electromagnetic switch | |
| JPH03196421A (en) | Contact device | |
| JPH0330216A (en) | Electromagnetic switchgear | |
| SU1140185A1 (en) | A.c.switching device |