JPH0527944U - Electromagnetic relay - Google Patents

Abstract

(57)【要約】 【構成】接極子２や可動接点ばね４を絶縁固定体６によ
り保持する接極子組立体１と、スプール９にコイル１０
を巻回しコ字形鉄心１１を装着するとともに中央に永久
磁石１３を挿入するコイル組立体８と、各種の端子１６
〜１８を備え且つコイル組立体８および接極子組立体１
を装着する絶縁体基台１４とを有する。しかも、接極子
組立体１とコイル組立体８との間には、磁石用穴部１９
やコ字形鉄心用穴部２０を形成した絶縁板７を介在させ
る。 【効果】従来の継電器構造を変えることなく、絶縁板７
を介在させるだけでコイル１０と接点３間の空間距離を
伸ばすことができ、絶縁耐圧を向上させることができ
る。 (57) [Summary] [Structure] An armature assembly 1 that holds an armature 2 and a movable contact spring 4 by an insulating fixed body 6, and a coil 10 on a spool 9.
A coil assembly 8 in which a U-shaped iron core 11 is mounted and a permanent magnet 13 is inserted in the center, and various terminals 16
To 18 and coil assembly 8 and armature assembly 1
And an insulator base 14 for mounting. Moreover, the magnet hole portion 19 is provided between the armature assembly 1 and the coil assembly 8.
An insulating plate 7 having a U-shaped iron core hole 20 is interposed. [Effect] Insulating plate 7 without changing the conventional relay structure
It is possible to extend the spatial distance between the coil 10 and the contact 3 simply by interposing, and to improve the dielectric strength voltage.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は電磁継電器に関し、特にコイルと接点系間の絶縁構造を改良した電磁 継電器に関する。 The present invention relates to an electromagnetic relay, and more particularly to an electromagnetic relay having an improved insulation structure between a coil and a contact system.

【０００２】[0002]

【従来の技術】[Prior Art]

従来の電磁継電器は、コイル組立体と接極子組立体を絶縁体基台に搭載し、そ の上からカバーで覆っている。しかも、このカバーを覆った後、樹脂封止するこ とにより固定している。 In a conventional electromagnetic relay, a coil assembly and an armature assembly are mounted on an insulator base and covered with a cover from above. Moreover, after covering the cover, it is fixed by resin sealing.

【０００３】 図５はかかる従来の一例を示す電磁継電器の分解斜視図である。図５に示すよ うに、この電磁継電器は、カバーについては省略しているが、主要な接極子組立 体１と、永久磁石１３を装着するコイル組立体８と、各種接点１６〜１８を植設 した絶縁体基台１４とを示している。コイル組立体８はコイル１０を巻回したコ イルスプール９と、このコイルスプール９に装着されたコ字状鉄心１１と、この 鉄心１１に磁極が接触するように配置された永久磁石１３と、コイル端子１２と を有し、永久磁石１３および鉄心６を一体的に固着して形成される。また、接極 子組立体１は両端部が鉄心１１の両端部に対向するように配置された接極子２と 、この接極子２の両端部がコ字形鉄心１１の両端部に接触・開離するシーソー動 作を行うのを支持するヒンジばね部５と、接極子２のシーソー動作に連動し可動 接点３を先端に形成した可動接点ばね４とを絶縁固定体６で一体固定して形成さ れる。更に、絶縁体基台１４は上部が開口し底面に穴部を形成した箱型形状を有 すると共に、その開口部にコイル組立体８を配置し且つ永久磁石１３が接極子２ のシーソー動作の支点となるように接極子組立体１を配置したとき可動接点ばね ４の可動接点３に対向する固定接点１５を有する固定接点端子１６と、接極子組 立体１を形成するヒンジばね部５の一端に接続される中立端子１７と、コイル端 子１２に接続されるコイル導出端子１８とを植設して構成される。ここで、実際 の電磁継電器はコイル組立体８及び接極子組立体１を配設した絶縁体基台１４に カバー（図示省略）を被せる。そして、絶縁体基台１４に対向するコイルスプー ル９の底部に溝部を形成しているので、カバーの開口部を封止剤により封止・固 着する。FIG. 5 is an exploded perspective view of an electromagnetic relay showing such a conventional example. As shown in FIG. 5, in this electromagnetic relay, although the cover is omitted, a main armature assembly 1, a coil assembly 8 on which a permanent magnet 13 is mounted, and various contacts 16 to 18 are planted. The insulating base 14 is shown. The coil assembly 8 includes a coil spool 9 around which a coil 10 is wound, a U-shaped iron core 11 mounted on the coil spool 9, a permanent magnet 13 arranged so that a magnetic pole contacts the iron core 11. It has a coil terminal 12 and is formed by integrally fixing the permanent magnet 13 and the iron core 6. In addition, the armature assembly 1 includes an armature 2 arranged so that both ends thereof are opposed to both ends of the iron core 11, and both ends of the armature 2 contact and separate from both ends of the U-shaped iron core 11. Formed by integrally fixing an insulating fixed body 6 to a hinge spring portion 5 that supports performing a seesaw operation, and a movable contact spring 4 having a movable contact 3 formed at the tip in conjunction with the seesaw operation of the armature 2. Be done. Further, the insulator base 14 has a box-like shape having an opening at the top and a hole at the bottom, the coil assembly 8 is arranged in the opening, and the permanent magnet 13 is used for seesaw operation of the armature 2. Fixed contact terminal 16 having fixed contact 15 facing movable contact 3 of movable contact spring 4 when armature assembly 1 is arranged so as to be a fulcrum, and one end of hinge spring portion 5 forming armature solid 3 And a coil lead-out terminal 18 connected to the coil terminal 12. Here, in an actual electromagnetic relay, a cover (not shown) is placed on the insulator base 14 on which the coil assembly 8 and the armature assembly 1 are arranged. Since the groove is formed in the bottom of the coil spool 9 facing the insulator base 14, the opening of the cover is sealed and fixed with a sealant.

【０００４】 図６は図５に示す電磁継電器の正面断面図である。図６に示すように、従来の 電磁継電器はコイル１０と可動接点ばね４等の接点系との間には何もないものが 多い。従って、コイル１０と接点系との絶縁性は空間のみに頼っている。また、 コイル１０と接点系との絶縁性を初めから考えた電磁継電器は、絶縁体基台１４ にあらかじめ絶縁用の遮蔽板を設けることにより絶縁性を高めている。FIG. 6 is a front sectional view of the electromagnetic relay shown in FIG. As shown in FIG. 6, many conventional electromagnetic relays have nothing between the coil 10 and the contact system such as the movable contact spring 4. Therefore, the insulation between the coil 10 and the contact system depends only on the space. In addition, in the electromagnetic relay, which originally considers the insulation between the coil 10 and the contact system, the insulation base 14 is provided with a shielding plate for insulation in advance to improve the insulation.

【０００５】[0005]

【考案が解決しようとする課題】[Problems to be solved by the device]

上述した従来の電磁継電器は、外形寸法上の制約からコイルと接点系の距離に 限界があり、その距離によって絶縁特性が決められているので、十分な絶縁耐圧 を得ることが出来ないという欠点がある。また、従来の電磁継電器は高絶縁化す ると、絶縁体基台にあらかじめ絶縁用の遮蔽板を設けるので、汎用性がなく廉価 に製造出来ないという欠点もある。 The conventional electromagnetic relay described above has a limitation in the distance between the coil and the contact system due to restrictions on the external dimensions, and the insulation characteristics are determined by the distance, so there is the drawback that a sufficient withstand voltage cannot be obtained. is there. Further, when the conventional electromagnetic relay is highly insulated, it has a drawback that it is not versatile and cannot be manufactured at low cost because an insulating shield plate is provided on the insulator base in advance.

【０００６】 本考案の目的は、かかる従来の継電器構造を変えることなく、コイルと接点間 の絶縁耐圧を向上させることのできる電磁継電器を提供することにある。An object of the present invention is to provide an electromagnetic relay capable of improving the withstand voltage between a coil and a contact without changing such a conventional relay structure.

【０００７】[0007]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の電磁継電器は、コイルを巻回したコイルスプールと前記コイルスプー ルに装着したコ字状鉄心と前記コ字形鉄心に磁極が接触するように配置された永 久磁石とを備えたコイル組立体と、両端部が前記コ字形鉄心の両端部に対向する ように配置された接極子と前記接極子の両端部が前記コ字形鉄心の両端部に接触 ・開離するためのシーソー動作を支持するヒンジばね部と前記接極子のシーソー 動作に連動する可動接点ばねとを絶縁固定体で一体固定した接極子組立体と、開 口部に前記コイル組立体を配置し且つ前記永久磁石が前記接極子のシーソー動作 の支点となるように前記接極子組立体を配置したときに前記可動接点ばねの可動 接点に対向する固定接点を有する固定接点端子と前記接極子組立体の前記ヒンジ ばね部の一端に接続される中立端子とを植設した絶縁体基台とを備え、前記コイ ル組立体と前記接極子組立体との間に、前記固定接点端子と前記コ字形鉄心の両 端部および前記永久磁石を突出させる穴部および切欠きを形成した単体の絶縁板 又は絶縁フィルムを配置して構成される。 The electromagnetic relay of the present invention is a coil assembly including a coil spool around which a coil is wound, a U-shaped iron core mounted on the coil spool, and a permanent magnet arranged so that magnetic poles come into contact with the U-shaped iron core. And the armature arranged so that both ends thereof face the both ends of the U-shaped core, and both ends of the armature support a seesaw operation for contacting / separating both ends of the U-shaped core. An armature assembly in which a hinge spring part and a movable contact spring interlocked with the seesaw operation of the armature are integrally fixed by an insulating fixed body, and the coil assembly is arranged in the opening part, and the permanent magnet is the armature. The fixed contact terminal having a fixed contact facing the movable contact of the movable contact spring and the one end of the hinge spring portion of the armature assembly when the armature assembly is arranged so as to be a fulcrum of the seesaw operation of An insulator base in which a neutral terminal to be connected is planted, and the fixed contact terminal and both ends of the U-shaped iron core and the permanent magnet are provided between the coil assembly and the armature assembly. It is configured by disposing a single insulating plate or insulating film having a hole and a notch through which the magnet projects.

【０００８】[0008]

【実施例】【Example】

次に、本考案の実施例について図面を参照して説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.

【０００９】 図１は本考案の一実施例を示す電磁継電器の分解斜視図である。図１に示すよ うに、本実施例は接極子２と可動接点３が先端に形成された可動接点ばね４をヒ ンジばね部５とともに絶縁固定体６に一体固定してなる接極子組立体１を有する 。この接極子組立体１は平板状の絶縁板７と永久磁石１３を介して、コイルスプ ール９にコイル１０を巻回し且つコ字形鉄心１１を装着するとともにコイル端子 １２を植設してなるコイル組立体８上に載置される。絶縁板７には、永久磁石１ ３を突出させるための磁石用穴部１９と、コ字形鉄心１１の両端を突出させるた めの鉄心用穴部２０とが形成されている。また、この絶縁板７の四隅は、固定接 点を配置するために切欠いてある。更に、これら接極子組立体１およびコイル組 立体８は固定接点１５を有する固定接点端子１６と中立端子１７およびコイル導 出端子１８を植設した絶縁体基台１４に搭載される。特に、本実施例はコ字状鉄 心１１に磁極が接触するように配置された永久磁石１３とこの永久磁石１３およ び鉄心１１を一体的に固着するコイルスプール９とを有するコイル組立体８と、 両端部がコ字形鉄心１１の両端部に対向するように配置された接極子２とこの接 極子２の両端部が鉄心１１の両端部に接触・開離するシーソー動作を行うのを支 持するヒンジばね部５と接極子２のシーソー動作に連動する可動接点ばね４とを 絶縁固定体６で一体固定した接極子組立体１との間の空間に、接点系である可動 接点ばね４とコイル１０の間を塞ぐように、単体の絶縁板７又は絶縁フィルムを 挿入している。尚、絶縁板７は前述したように、固定接点端子１６，鉄心１１の 両端部および永久磁石１３のみをその上部に突出させる。FIG. 1 is an exploded perspective view of an electromagnetic relay showing an embodiment of the present invention. As shown in FIG. 1, in this embodiment, an armature assembly 1 is formed by integrally fixing a movable contact spring 4 having an armature 2 and a movable contact 3 formed at a tip end to an insulation fixing body 6 together with a hinge spring portion 5. Have This armature assembly 1 is a coil in which a coil 10 is wound around a coil spool 9 through a flat plate-shaped insulating plate 7 and a permanent magnet 13, a U-shaped iron core 11 is mounted, and a coil terminal 12 is implanted. It is placed on the assembly 8. The insulating plate 7 is provided with magnet holes 19 for projecting the permanent magnets 13 and iron core holes 20 for projecting both ends of the U-shaped iron core 11. Further, the four corners of the insulating plate 7 are notched in order to arrange the fixed contact points. Further, the armature assembly 1 and the coil assembly 3 are mounted on an insulator base 14 in which a fixed contact terminal 16 having a fixed contact 15, a neutral terminal 17 and a coil lead terminal 18 are implanted. In particular, this embodiment is a coil assembly having a permanent magnet 13 arranged so that the magnetic poles come into contact with the U-shaped iron core 11 and a coil spool 9 integrally fixing the permanent magnet 13 and the iron core 11. 8 and the armature 2 arranged so that both ends thereof face the both ends of the U-shaped iron core 11, and both ends of the armature 2 perform a seesaw operation of contacting / separating the both ends of the iron core 11. A movable contact spring, which is a contact system, in the space between the armature assembly 1 in which the supporting hinge spring 5 and the movable contact spring 4 that interlocks with the seesaw operation of the armature 2 are integrally fixed by an insulating fixing body 6. A single insulating plate 7 or insulating film is inserted so as to close the gap between the coil 4 and the coil 10. As described above, the insulating plate 7 projects only the fixed contact terminal 16, both ends of the iron core 11 and the permanent magnet 13 to the upper part thereof.

【００１０】 図２（ａ），（ｂ）はそれぞれ図１に示す電磁継電器の正面断面図およびその Ａ−Ａ断面図である。図２（ａ），（ｂ）に示すように、この絶縁板７又は絶縁 フィルムを設けることにより、コイル１０と接点系４の空間距離２１は従来の倍 以上になり、絶縁性が向上する。2A and 2B are a front sectional view and an AA sectional view of the electromagnetic relay shown in FIG. 1, respectively. As shown in FIGS. 2 (a) and 2 (b), by providing the insulating plate 7 or the insulating film, the space distance 21 between the coil 10 and the contact system 4 is more than double that of the conventional one, and the insulating property is improved.

【００１１】 図３は本考案の他の実施例を説明するための電磁継電器における絶縁板の斜視 図である。図３に示すように、本実施例の全体構造は前述した図１の一実施例と 同様であり、異なる点は絶縁板７の構造を変えたことにある。すなわち、本実施 例は上面に磁石用穴部１９および鉄心用穴部２０を形成したコ字形の絶縁板２２ を用いることにより、コイル１０と接点系４の空間距離２１をさらにのばすこと になり、絶縁性を向上させることができる。FIG. 3 is a perspective view of an insulating plate in an electromagnetic relay for explaining another embodiment of the present invention. As shown in FIG. 3, the entire structure of this embodiment is the same as that of the above-described embodiment of FIG. 1, and the difference is that the structure of the insulating plate 7 is changed. That is, in this embodiment, the space distance 21 between the coil 10 and the contact system 4 is further extended by using the U-shaped insulating plate 22 having the magnet hole 19 and the iron core hole 20 formed on the upper surface. The insulating property can be improved.

【００１２】 図４は本考案におけるコイルと接点系間の絶縁耐圧特性図である。図４に示す ように、従来の特性Ａに対し、前述した一実施例の特性Ｂおよび前述した他の実 施例の特性Ｃは３０〜５０％も絶縁耐圧が向上する。従って、本考案を実施する ことにより、コイル１０と接点系４の絶縁性が向上することが分かる。しかも、 継電器の構造としては、変えないで済む。FIG. 4 is a breakdown voltage characteristic diagram between the coil and the contact system in the present invention. As shown in FIG. 4, in comparison with the conventional characteristic A, the characteristic B of the above-described embodiment and the characteristic C of the above-described other embodiment improve the withstand voltage by 30 to 50%. Therefore, it is understood that the insulation of the coil 10 and the contact system 4 is improved by implementing the present invention. Moreover, the structure of the relay does not have to be changed.

【００１３】[0013]

【考案の効果】[Effect of the device]

以上説明したように、本考案の電磁継電器は、コイル系と接点系との間に単体 の絶縁板又は絶縁フィルムを挿入し且つ固定端子や鉄心の両端部および永久磁石 のみを上部に出る構成とする絶縁板又は絶縁フィルムを使用することにより、容 易にコイル系と接点系との絶縁性耐圧を向上でき、しかも従来の部品に手を加え ることもなく廉価で信頼性を向上させることができるという効果がある。 As described above, the electromagnetic relay of the present invention has a structure in which a single insulating plate or insulating film is inserted between the coil system and the contact system, and only the fixed terminals and both ends of the iron core and the permanent magnet are exposed above. It is possible to easily improve the insulation withstand voltage between the coil system and the contact system by using an insulating plate or insulating film that can be used, and at the same time, it is possible to improve the reliability at a low price without modifying conventional components. There is an effect that you can.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の一実施例を示す電磁継電器の分解斜視
図である。FIG. 1 is an exploded perspective view of an electromagnetic relay showing an embodiment of the present invention.

【図２】図１に示す電磁継電器の正面断面およびそのＡ
−Ａ断面を表わす図である。FIG. 2 is a front cross-section of the electromagnetic relay shown in FIG.
It is a figure showing a -A cross section.

【図３】本考案の他の実施例を説明するための電磁継電
器における絶縁板の斜視図である。FIG. 3 is a perspective view of an insulating plate in an electromagnetic relay for explaining another embodiment of the present invention.

【図４】本考案におけるコイル・接点系間の絶縁耐圧特
性図である。FIG. 4 is a withstand voltage characteristic diagram between a coil and a contact system in the present invention.

【図５】従来の一例を示す電磁継電器の分解斜視図であ
る。FIG. 5 is an exploded perspective view of an electromagnetic relay showing a conventional example.

【図６】図５に示す電磁継電器の正面断面図である。6 is a front sectional view of the electromagnetic relay shown in FIG.

【符号の説明】[Explanation of symbols]

１ 接極子組立体 ２ 接極子 ３ 可動接点 ４ 可動接点ばね ５ ヒンジばね部 ６ 絶縁固定体 ７，２２ 絶縁板 ８ コイル組立体 ９ コイルスプール １０ コイル １１ 鉄心 １２ コイル端子 １３ 永久磁石 １４ 絶縁体基台 １５ 固定接点 １６ 固定接点端子 １７ 中立端子 １８ コイル導出端子 １９ 磁石用穴部 ２０ 鉄心用穴部 ２１ 空間距離 1 Armature Assembly 2 Armature 3 Movable Contact 4 Movable Contact Spring 5 Hinge Spring Part 6 Insulation Fixed Body 7,22 Insulation Plate 8 Coil Assembly 9 Coil Spool 10 Coil 11 Iron Core 12 Coil Terminal 13 Permanent Magnet 14 Insulator Base 15 Fixed Contact 16 Fixed Contact Terminal 17 Neutral Terminal 18 Coil Derivation Terminal 19 Magnet Hole 20 Iron Core Hole 21 Spatial Distance

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 コイルを巻回したコイルスプールと前記
コイルスプールに装着したコ字状鉄心と前記コ字形鉄心
に磁極が接触するように配置された永久磁石とを備えた
コイル組立体と、両端部が前記コ字形鉄心の両端部に対
向するように配置された接極子と前記接極子の両端部が
前記コ字形鉄心の両端部に接触・開離するためのシーソ
ー動作を支持するヒンジばね部と前記接極子のシーソー
動作に連動する可動接点ばねとを絶縁固定体で一体固定
した接極子組立体と、開口部に前記コイル組立体を配置
し且つ前記永久磁石が前記接極子のシーソー動作の支点
となるように前記接極子組立体を配置したときに前記可
動接点ばねの可動接点に対向する固定接点を有する固定
接点端子と前記接極子組立体の前記ヒンジばね部の一端
に接続される中立端子とを植設した絶縁体基台とを備
え、前記コイル組立体と前記接極子組立体との間に、前
記固定接点端子と前記コ字形鉄心の両端部および前記永
久磁石を突出させる穴部および切欠きを形成した単体の
絶縁板又は絶縁フィルムを配置したことを特徴とする電
磁継電器。1. A coil assembly comprising: a coil spool around which a coil is wound; a U-shaped iron core attached to the coil spool; and a permanent magnet arranged so that magnetic poles come into contact with the U-shaped iron core; And a hinge spring part for supporting a seesaw operation for contacting / separating both ends of the armature with both ends of the armature arranged so as to face both ends of the U-shaped core. And a movable contact spring that is interlocked with the seesaw operation of the armature, and an armature assembly integrally fixed by an insulating fixing body, and the coil assembly is arranged in the opening, and the permanent magnet of A fixed contact terminal having a fixed contact facing the movable contact of the movable contact spring when the armature assembly is arranged so as to be a fulcrum, and a neutral point connected to one end of the hinge spring portion of the armature assembly. end An insulator base in which a child is implanted, and between the coil assembly and the armature assembly, both ends of the fixed contact terminal, the U-shaped iron core, and the hole for projecting the permanent magnet. An electromagnetic relay, wherein a single insulating plate or insulating film having a notch is arranged.