JP2012129159A - Electromagnetic contactor - Google Patents
Electromagnetic contactor Download PDFInfo
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- JP2012129159A JP2012129159A JP2010281952A JP2010281952A JP2012129159A JP 2012129159 A JP2012129159 A JP 2012129159A JP 2010281952 A JP2010281952 A JP 2010281952A JP 2010281952 A JP2010281952 A JP 2010281952A JP 2012129159 A JP2012129159 A JP 2012129159A
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- magnetic
- magnetic pole
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Abstract
Description
本発明は、直流電磁接触器を対象とする電磁接触器に関し、詳しくはその接点ユニットに搭載したアーク駆動用磁気ユニットの組立構造に係わる。 The present invention relates to an electromagnetic contactor intended for a DC electromagnetic contactor, and more particularly to an assembly structure of an arc driving magnetic unit mounted on a contact unit thereof.
頭記した直流電磁接触器の消弧方式として電磁接触器の接点ユニットに永久磁石，磁極板を組合せた磁気ユニットを搭載装備し、永久磁石の磁界を利用して固定／可動接点間に生じたアークを消弧室に駆動するようにした構成が知られている（例えば、特許文献１参照）。 As the arc extinguishing method for the DC magnetic contactor mentioned above, the contact unit of the magnetic contactor is equipped with a magnetic unit that combines a permanent magnet and a magnetic pole plate, and is generated between the fixed and movable contacts using the magnetic field of the permanent magnet. A configuration in which an arc is driven to an arc extinguishing chamber is known (see, for example, Patent Document 1).
次に、直流電磁接触器の従来製品（ａ接点×１，ｂ接点×２の３極形電磁接触器）を例に、上記磁気ユニットを装備した接点ユニットの構成を図３〜図５に示す。なお、図３（ｂ）はｂ接点部の断面図である。 Next, the configuration of a contact unit equipped with the above magnetic unit is shown in FIGS. 3 to 5 as an example of a conventional DC magnetic contactor product (a contact x 1, b contact x 2 tripolar electromagnetic contactor). . FIG. 3B is a cross-sectional view of the b contact portion.
まず、図３（ａ），（ｂ）および図４において、１は接点ユニットのフレーム、１ａは極間隔壁、２は電源側，負荷側の主回路端子（ネジ端子）、３は主回路端子２に結合した固定接触子（ｂ接点）、４は接触子ホルダ、５は接触子ホルダ４に保持した橋絡形可動接触子、６は前記フレーム１の頂部に組合せた消弧室カバー、７は固定接触子３，可動接触子５の周囲を包囲してフレーム１に装着したアーク駆動用の磁気ユニットである。なお、この接点ユニットのフレーム１は電磁石ユニットのフレーム（不図示）と組み合わせて前記の可動接触子ホルダ４を電磁石ユニットの可動鉄心に連結している。 First, in FIGS. 3A, 3B and 4, 1 is a frame of a contact unit, 1a is a pole interval wall, 2 is a main circuit terminal (screw terminal) on the power source side and load side, and 3 is a main circuit terminal. Fixed contact (b contact) coupled to 2, 4 is a contact holder, 5 is a bridge-shaped movable contact held by the contact holder 4, 6 is an arc extinguishing chamber cover combined with the top of the frame 1, 7 Is a magnetic unit for arc driving which is mounted on the frame 1 so as to surround the fixed contact 3 and the movable contact 5. The contact unit frame 1 is combined with an electromagnet unit frame (not shown) to connect the movable contact holder 4 to the movable iron core of the electromagnet unit.
また、上記の磁気ユニット７の構成は、図５（ａ）〜（ｄ）で示すように永久磁石（例えば、アルニコ系の鋳造磁石）８と、永久磁石８の両極磁極面に重ね合わせて上方に起立延在する左右一対の磁極板９と、モールド樹脂成形品で作られた磁石受け部材１０とのアッセンブリ（組立体）からなる。ここで、磁石受け部材１０はベース１０ａの左右両端から上方に側壁１０ｂが直立したＵ字形構造体であり、永久磁石８はベース１０ａの下面に形成した凹状の磁石取付溝１０ｃに、磁極板９は左右側壁１０ｂの外面に形成した凹状の磁極板取付面１０ｄにそれぞれ接着剤を塗布して貼着した上で、前記ベース１０ａを図４のようにフレーム１の極間隔壁の間に介挿してフレーム１に嵌め込み支持している。 5A to 5D, the configuration of the magnetic unit 7 is superimposed on the poles of the permanent magnet (for example, Alnico cast magnet) 8 and the pole poles of the permanent magnet 8, and is upward. It consists of an assembly (assembly) of a pair of left and right magnetic pole plates 9 extending upright and a magnet receiving member 10 made of a molded resin molded product. Here, the magnet receiving member 10 is a U-shaped structure with side walls 10b upright from both left and right ends of the base 10a, and the permanent magnet 8 is inserted into a concave magnet mounting groove 10c formed on the lower surface of the base 10a. 4A and 4B, adhesives are respectively applied to and adhered to the concave magnetic pole plate mounting surfaces 10d formed on the outer surfaces of the left and right side walls 10b, and the base 10a is interposed between the pole interval walls of the frame 1 as shown in FIG. The frame 1 is fitted and supported.
先記のように従来製品の磁気ユニット７は、その永久磁石８，磁極板９を磁石受け部材の取り付け面に接着剤で貼着するようにしているが、その組立工程では接着剤の塗布作業、および接着剤の硬化時間を要することから、製品の製造タクトタイムが長くなって生産性（リードタイム）が低下する課題がある。 As described above, in the conventional magnetic unit 7, the permanent magnet 8 and the magnetic pole plate 9 are adhered to the mounting surface of the magnet receiving member with an adhesive. In the assembly process, the adhesive is applied. Further, since the curing time of the adhesive is required, there is a problem that the manufacturing tact time of the product becomes long and the productivity (lead time) decreases.
本発明は上記の点に鑑みなされたものであり、その目的は接点ユニットに搭載するアーク駆動用磁気ユニットの組立構造について、接着剤を使用しない接着レス方式で組み立てられるように改良した電磁接触器を提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to improve an assembly of an arc-driven magnetic unit mounted on a contact unit so that it can be assembled in an adhesive-less manner without using an adhesive. Is to provide.
上記目的を達成するために、本発明によれば、接点ユニットのフレームに固定接触子，橋絡形可動接触子、およびアーク駆動用の磁気ユニットを搭載した構成になる電磁接触器で、前記磁気ユニットが永久磁石と、その両極に配した一対の磁極板と、前記永久磁石および磁極板を外周面に取り付けて前記接点ユニットのフレーム上に保持したＵ字構造の磁石受け部材との組立体からなるものにおいて、
前記永久磁石の磁極面に磁極板をダボ結合した上で、磁極板を磁石受け部材の側壁に係合支持するものとし（請求項１）、具体的には次記のような態様で構成する。
（１）前記の永久磁石が焼結磁石であり、その両極の磁極面にダボ穴，該ダボ穴に対向して磁極板の板面にダボを形成し、該ダボを永久磁石のダボ穴に嵌め合わせて磁極板を永久磁石の磁極面にダボ結合する（請求項２）。
（２）前記磁極板の側縁にタブ状の係合突起，該係合突起に対向して磁石受け部材の側壁に係合溝部を形成し、該係合溝部に磁極板の係合突起を嵌め合わせて磁極板を磁石受け部材に係合支持する（請求項３）。
In order to achieve the above object, according to the present invention, there is provided an electromagnetic contactor comprising a contact unit frame mounted with a stationary contact, a bridge-type movable contact, and an arc-driven magnetic unit. The unit is composed of a permanent magnet, a pair of magnetic pole plates arranged on both poles thereof, and a U-shaped magnet receiving member attached to the outer peripheral surface of the permanent magnet and the magnetic pole plate and held on the frame of the contact unit. In what
The magnetic pole plate is doweled to the magnetic pole surface of the permanent magnet, and the magnetic pole plate is engaged with and supported by the side wall of the magnet receiving member (Claim 1). .
(1) The permanent magnet is a sintered magnet. A dowel hole is formed on the pole face of both poles, and a dowel is formed on the plate surface of the pole plate facing the dowel hole, and the dowel is formed in the dowel hole of the permanent magnet. By fitting, the magnetic pole plate is doweled to the magnetic pole surface of the permanent magnet.
(2) A tab-like engagement protrusion on the side edge of the magnetic pole plate, an engagement groove portion is formed on the side wall of the magnet receiving member so as to face the engagement protrusion, and the engagement protrusion of the magnetic pole plate is formed in the engagement groove portion. The magnetic pole plate is engaged with and supported by the magnet receiving member by fitting.
上記構成によれば、接着剤を用いない接着レスで磁石受け部材の外周面に永久磁石，および磁極板を組み付けることかでき、これにより接着剤を用いて貼り付けていた従来の組立構造と比べて、組立性の向上，および製造タクトタイムの短縮化が図れて製品の生産性を高めることができる。 According to the above configuration, it is possible to assemble the permanent magnet and the magnetic pole plate on the outer peripheral surface of the magnet receiving member without using an adhesive, thereby comparing with the conventional assembly structure in which the adhesive is used. As a result, the productivity of the product can be improved by improving the assemblability and shortening the manufacturing tact time.
以下、本発明の実施の形態を図１，および図２に示す実施例に基づいて説明する。なお、実施例の図中で図３〜図５に対応する部材には同じ符号を付してその説明は省略する。
図示実施例の接点ユニットにおいては、そのユニットフレーム１に搭載装備した磁気ユニット７が次記のように接着レスの組立構造になる。
Embodiments of the present invention will be described below based on the examples shown in FIGS. In addition, in the figure of an Example, the same code | symbol is attached to the member corresponding to FIGS. 3-5, and the description is abbreviate | omitted.
In the contact unit of the illustrated embodiment, the magnetic unit 7 mounted on the unit frame 1 has an adhesiveless assembly structure as described below.
すなわち、図１（ａ）〜（ｄ）において、永久磁石８は従来製品に採用されているアルニコ鋳造磁石をアルニコ焼結磁石に変更した上で、この焼結磁石の両極面には磁石の焼結成形工程でダボ穴８ａを形成しておく。一方、磁極板９の板面には前記ダボ穴８ａに対応するダボ９ａを形成しておき、組立工程では永久磁石８と磁極板９との間をダボ結合するようにしている（図１（ｄ）参照）。 That is, in FIGS. 1A to 1D, the permanent magnet 8 is obtained by changing the Alnico cast magnet used in the conventional product to an Alnico sintered magnet, and firing the magnet on both pole surfaces of the sintered magnet. The dowel hole 8a is formed in the forming process. On the other hand, a dowel 9a corresponding to the dowel hole 8a is formed on the plate surface of the pole plate 9, and the permanent magnet 8 and the pole plate 9 are doweled in the assembly process (FIG. 1 ( d)).
また、磁極板９の上端コーナーの側縁にはタブ状の係合突起９ｂが突出し形成されており、この係合突起９ｂに対向して磁石受け部材１０の側壁１０ｂには上部コーナー部位に磁極板取付溝１０ｅを形成している（図１（ｃ）参照）。なお、図示実施例の磁極板９には、その下端側に支持脚片９ｃを突出し形成している。 Further, a tab-like engagement protrusion 9b is formed on the side edge of the upper end corner of the magnetic pole plate 9 so as to face the engagement protrusion 9b and on the side wall 10b of the magnet receiving member 10 at the upper corner portion. A plate mounting groove 10e is formed (see FIG. 1C). In the magnetic pole plate 9 of the illustrated embodiment, a supporting leg piece 9c is formed protruding from the lower end side.
そして、上記の磁気ユニット７を組み立てるには、あらかじめ永久磁石８の両端に磁極板９をダボ結合した上で、磁極板９を磁石受け部材１０の下方側から側壁１０ｂの板面に形成した凹状の磁極板取付面１０ｃに沿って挿入し、その嵌め合わせ終端位置で磁極板９の係合突起９ｂを側壁１０ｂに形成した磁極板係合溝１０ｅに嵌合して両者の間に係合支持する。この磁気ユニット７の組立状態では永久磁石８が磁石受け部材１０のベース下面側に形成した凹状の磁石取付溝１０ｄに嵌入してこの位置に保持される。 In order to assemble the magnetic unit 7, the magnetic pole plate 9 is preliminarily bonded to both ends of the permanent magnet 8, and the magnetic pole plate 9 is formed on the plate surface of the side wall 10 b from the lower side of the magnet receiving member 10. Is inserted along the magnetic pole plate mounting surface 10c, and the engagement protrusion 9b of the magnetic pole plate 9 is fitted into the magnetic pole plate engaging groove 10e formed on the side wall 10b at the fitting end position to engage and support the two. To do. In the assembled state of the magnetic unit 7, the permanent magnet 8 is fitted into the concave magnet mounting groove 10 d formed on the lower surface of the base of the magnet receiving member 10 and held at this position.
また、上記構成の磁気ユニット７を図２に示した接点ユニットのフレーム１に装着するには、前記磁石受け部材１０のベース１０ａ，および磁極板９の支持脚片９ｃを介してフレーム１の極間上面に形成した係合台部に嵌め込むことにより定位置に保持される。 In order to mount the magnetic unit 7 having the above configuration on the frame 1 of the contact unit shown in FIG. 2, the poles of the frame 1 are interposed via the base 10a of the magnet receiving member 10 and the support leg pieces 9c of the magnetic pole plate 9. It is held at a fixed position by being fitted into an engagement base formed on the upper surface.
上記の説明から判るように、図示実施例の磁気ユニット７を接着レス方式で組み立てたことにより、磁石受け部材１０に接着剤を塗布して永久磁石８，磁極板９を貼着した従来構造と比べて組立作業が簡単となり、かつ接着剤の硬化時間も不要となって製造のタクトタイムを大幅な短縮化が図れる。 As can be seen from the above description, by assembling the magnetic unit 7 of the illustrated embodiment in an adhesive-less manner, the permanent magnet 8 and the magnetic pole plate 9 are pasted by applying an adhesive to the magnet receiving member 10 and In comparison, the assembling work is simplified, and the time for curing the adhesive is not required, so that the manufacturing tact time can be greatly shortened.
１ 接点ユニットのフレーム
３ 固定接触子
５ 可動接触子
６ 消弧室カバー
７ 磁気ユニット
８ 永久磁石
８ａ ダボ穴
９ 磁極板
９ａ ダボ
９ｂ 係合突起
１０ 磁石受け部材
１０ａ ベース
１０ｂ 側壁
１０ｃ 磁石取付溝
１０ｄ 磁極板係合溝
DESCRIPTION OF SYMBOLS 1 Frame of contact unit 3 Fixed contact 5 Movable contact 6 Arc-extinguishing chamber cover 7 Magnetic unit 8 Permanent magnet 8a Dowel hole 9 Magnetic pole plate 9a Dowel 9b Engagement protrusion 10 Magnet receiving member 10a Base 10b Side wall 10c Magnet mounting groove 10d Magnetic pole Plate engagement groove
Claims (3)
前記永久磁石の磁極面に磁極板をダボ結合した上で、磁極板を磁石受け部材の側壁に係合支持したことを特徴とする電磁接触器。 An electromagnetic contactor comprising a contact unit frame mounted with a stationary contact, a bridge-type movable contact, and an arc-driven magnetic unit, wherein the magnetic unit is a permanent magnet and a pair of poles disposed on both poles thereof. And a U-structured magnet receiving member that is attached to the outer peripheral surface and held on the frame of the contact unit.
An electromagnetic contactor characterized in that a magnetic pole plate is doweled to the magnetic pole surface of the permanent magnet, and the magnetic pole plate is engaged and supported on the side wall of the magnet receiving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010281952A JP2012129159A (en) | 2010-12-17 | 2010-12-17 | Electromagnetic contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010281952A JP2012129159A (en) | 2010-12-17 | 2010-12-17 | Electromagnetic contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2012129159A true JP2012129159A (en) | 2012-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010281952A Withdrawn JP2012129159A (en) | 2010-12-17 | 2010-12-17 | Electromagnetic contactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015037022A (en) * | 2013-08-12 | 2015-02-23 | 富士電機機器制御株式会社 | Electromagnetic contactor |
| JP2017201623A (en) * | 2016-05-06 | 2017-11-09 | カーリング テクノロジーズ、 インコーポレイテッドＣａｒｌｉｎｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． | Arc motivation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152031U (en) * | 1980-04-15 | 1981-11-14 | ||
| JPS618913U (en) * | 1984-06-21 | 1986-01-20 | 富士電機株式会社 | DC magnetic contactor |
| JPS63134440U (en) * | 1987-02-24 | 1988-09-02 | ||
| JPH02142506U (en) * | 1989-04-28 | 1990-12-04 | ||
| JPH0817625A (en) * | 1994-04-26 | 1996-01-19 | Ckd Corp | Magnetic screw and manufacture of magnetic screw |
-
2010
- 2010-12-17 JP JP2010281952A patent/JP2012129159A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152031U (en) * | 1980-04-15 | 1981-11-14 | ||
| JPS618913U (en) * | 1984-06-21 | 1986-01-20 | 富士電機株式会社 | DC magnetic contactor |
| JPS63134440U (en) * | 1987-02-24 | 1988-09-02 | ||
| JPH02142506U (en) * | 1989-04-28 | 1990-12-04 | ||
| JPH0817625A (en) * | 1994-04-26 | 1996-01-19 | Ckd Corp | Magnetic screw and manufacture of magnetic screw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015037022A (en) * | 2013-08-12 | 2015-02-23 | 富士電機機器制御株式会社 | Electromagnetic contactor |
| JP2017201623A (en) * | 2016-05-06 | 2017-11-09 | カーリング テクノロジーズ、 インコーポレイテッドＣａｒｌｉｎｇ Ｔｅｃｈｎｏｌｏｇｉｅｓ， Ｉｎｃ． | Arc motivation device |
| EP3242306B1 (en) * | 2016-05-06 | 2023-11-22 | Carling Technologies, Inc. | Circuit interrupteur with arc suppression |
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