JPS6119480Y2 - - Google Patents

Description

【考案の詳細な説明】 産業上の利用分野 本考案は電磁接触器に関するものである。[Detailed explanation of the idea] Industrial applications The present invention relates to an electromagnetic contactor.

従来の技術 第１図および第２図は夫々従来の電磁接触器の
一例を示す正面図および平面図であつて、これら
の図において１は励磁コイルで、この励磁コイル
１は鉄製のフレーム２に固定される。３は固定鉄
心、４はスプリングワツシヤ５を介在させてねじ
６によりフレーム２に固着された取付板、７は復
元ばね、８は可動鉄片であつて、その可動鉄片８
は、第４図に示すような形状をしており、可動接
触導電板９の接点３８，３９方向側端部５１の両
側に直角に上方へ折り曲げてなる案内突起部５
２，５３を有し、また取付板４と摺接結合する切
欠き５４，５５を有し、さらにピン１８の貫通孔
５６と後述するステンレス部材１３が載置される
座ぐり穴１４を有している。また１１はリード線
１１ａの端子であつて、この端子１１が可動接触
導電板９の上面側にろう付１０により固着されて
いる。可動接触導電板９の下面側にはろう付１２
により平凸状のステンレス部材１３が固着され、
このステンレス部材１３の先端部は第３図に示す
ように可動鉄片８に設けや座ぐり穴１４の底面１
４ａに当接し、底面１４ａ上にステンレス部材１
３が載置されるような状態となつている。また１
５はナツト、１６はスプリングワツシヤ、１７は
平ワツシヤ、１８はピン、１９は接触ばね、２
０，２１はばね受け、２２は残留磁気防止板、２
３は固定子台、２４は固定接点板、２５はねじ、
２６はナツト、２４はスプリングワツシヤ、２８
は平ワツシヤ、２９はストツパー、３０は固定接
点台、３１，３２はナツト、３３，３４はスプリ
ングワツシヤ、３５は平ワツシヤ、３６はスナツ
プピンである。これで、可動接触導電板９の他端
部の両面には接点３８，３９が設けられ接点３８
は固定接点板２４の上端面に設けた固定接点３７
とで常開接点が形成される。４０〜４２は接続端
子である。BACKGROUND ART FIGS. 1 and 2 are a front view and a plan view, respectively, showing an example of a conventional electromagnetic contactor. In these figures, 1 is an excitation coil, and this excitation coil 1 is attached to an iron frame 2. Fixed. 3 is a fixed iron core, 4 is a mounting plate fixed to the frame 2 by screws 6 with spring washers 5 interposed therebetween, 7 is a restoring spring, and 8 is a movable iron piece.
has a shape as shown in FIG. 4, and has guide protrusions 5 bent upward at right angles on both sides of the ends 51 of the movable contact conductive plate 9 in the direction of the contacts 38 and 39.
2, 53, notches 54, 55 for sliding contact with the mounting plate 4, and a counterbore 14 in which a through hole 56 for the pin 18 and a stainless steel member 13 (described later) is placed. ing. Further, 11 is a terminal of a lead wire 11a, and this terminal 11 is fixed to the upper surface side of the movable contact conductive plate 9 by brazing 10. Brazing 12 is attached to the lower surface of the movable contact conductive plate 9.
The plano-convex stainless steel member 13 is fixed by
The tip of this stainless steel member 13 is attached to the movable iron piece 8 as shown in FIG.
4a, and the stainless steel member 1 is placed on the bottom surface 14a.
3 is placed on it. Also 1
5 is a nut, 16 is a spring washer, 17 is a flat washer, 18 is a pin, 19 is a contact spring, 2
0 and 21 are spring receivers, 22 is a residual magnetism prevention plate, 2
3 is a stator base, 24 is a fixed contact plate, 25 is a screw,
26 is a nut, 24 is a spring washer, 28
29 is a flat washer, 29 is a stopper, 30 is a fixed contact base, 31 and 32 are nuts, 33 and 34 are spring washers, 35 is a flat washer, and 36 is a snap pin. Now, the contacts 38 and 39 are provided on both sides of the other end of the movable contact conductive plate 9.
is a fixed contact 37 provided on the upper end surface of the fixed contact plate 24.
A normally open contact is formed. 40 to 42 are connection terminals.

このような構成された電磁接触器においては、
励磁コイル１に通電すると、固定鉄心３に可動鉄
片８が吸引され、可動接触導電板９の接点３８が
接点３７に当接される。そして接続端子４２は可
動接触導電板９、リード線端子１１、リード線１
１ａを介して接続端子４０へと電気的に接続され
る。 In an electromagnetic contactor configured like this,
When the exciting coil 1 is energized, the movable iron piece 8 is attracted to the fixed iron core 3, and the contact 38 of the movable contact conductive plate 9 is brought into contact with the contact 37. The connection terminal 42 includes the movable contact conductive plate 9, the lead wire terminal 11, and the lead wire 1.
It is electrically connected to the connection terminal 40 via 1a.

以上のような従来の電磁接触器においては、可
動接触導電板９に固着された接点３８を固定接点
板２４に固着された接点３７が当接した場合、こ
の接点のずれをなくすために、可動鉄片８の端部
を折曲げて形成した案内突起部５２，５３間に可
動接触導電板９を位置されている。これは電磁接
触器を開閉動作した時、可動片９が上下動する時
の案内となるもので、案内突起部５２，５３の内
側５２ａ，５３ａと当接接触することになる。 In the conventional electromagnetic contactor as described above, when the contact 37 fixed to the fixed contact plate 24 comes into contact with the contact 38 fixed to the movable contact conductive plate 9, the movable A movable contact conductive plate 9 is positioned between guide protrusions 52 and 53 formed by bending the ends of the iron piece 8. This serves as a guide when the movable piece 9 moves up and down when the electromagnetic contactor is opened and closed, and comes into contact with the inner sides 52a and 53a of the guide protrusions 52 and 53.

考案が解決しようとする問題点 しかしながら、従来の電磁接触器は図から分る
ように案内突起部５２，５３は、この折曲げ線５
２ｂ，５３ｂが可動接触導電板９の両側縁と平行
に設けてあるから、該可動接触導電板９が左右に
ずれ動こうとして案内突起部５２，５３に曲げ応
力が加わつたとき、折曲げ線５２ｂ，５３ｂから
折れやすいという欠点がある。Problems to be Solved by the Invention However, as can be seen from the figure, in the conventional electromagnetic contactor, the guide protrusions 52 and 53 are located at the bending line 5.
2b, 53b are provided parallel to both side edges of the movable contact conductive plate 9, so when the movable contact conductive plate 9 tries to shift from side to side and bending stress is applied to the guide protrusions 52, 53, the bending line There is a drawback that it is easy to break from 52b and 53b.

そこで本考案はこのような従来の欠点を除去す
るためになされたものである。 Therefore, the present invention has been devised to eliminate these conventional drawbacks.

問題点を解決するための手段 本考案は、可動鉄片の上側に、端部に接点を有
する可動接触導電板を配置して、両者を貫通する
ピンと、ピンに巻装した装触ばねにより可動鉄片
と可動接触導電板を圧接結合し、且つ可動鉄片の
端部に間隔をおいて設けた一対の案内突起部の間
に前記可動接触導電板を配置し、可動鉄片の側に
復帰ばねを介して励磁コイルを配設し、可動鉄片
に追従した可動接触導電板の上下動により主接点
の開閉を行なう電磁接触器において、前記一対の
案内突起部は、その折曲げ線を可動接触導電板に
両側縁と直交する方向に設けて上方へ折曲げ成形
してなることを特徴とする。Means for Solving the Problems The present invention arranges a movable contact conductive plate having a contact at the end on the upper side of a movable iron piece, and connects the movable iron piece with a pin passing through both and a mounting spring wound around the pin. A movable contact conductive plate is pressure-welded to the movable contact conductive plate, and the movable contact conductive plate is disposed between a pair of guide protrusions spaced apart from each other at the end of the movable iron piece, and the movable contact conductive plate is connected to the side of the movable iron piece via a return spring. In an electromagnetic contactor in which an excitation coil is arranged and the main contact is opened and closed by vertical movement of a movable contact conductive plate that follows a movable iron piece, the pair of guide protrusions connect the bending line to the movable contact conductive plate on both sides. It is characterized by being formed in a direction perpendicular to the edge and bent upward.

実施例 第５図および第６図は夫々本考案による電磁接
触器の一実施例を示す正面図および平面図であつ
て、これらの図において第１図〜第４図と同一あ
るいは相当部分には同符号を用いて示してある。Embodiment FIGS. 5 and 6 are a front view and a plan view, respectively, showing an embodiment of the electromagnetic contactor according to the present invention. In these figures, the same or equivalent parts as in FIGS. They are indicated using the same symbols.

これらの図において可動鉄片８は第７図に示す
ように一側端部中央に、突出部５７を有し、この
突出部５７の両側に間隔をおいてその折曲げ線５
８ａ，５９ａが可動接触導電板９の両側面と直角
になるようにして案内突起部５８，５９を上方へ
折り曲げて設けている。 In these figures, the movable iron piece 8 has a protrusion 57 at the center of one end, as shown in FIG.
The guide projections 58 and 59 are bent upward so that the guide projections 8a and 59a are perpendicular to both side surfaces of the movable contact conductive plate 9.

このようにすると、電磁接触器の開閉動作に従
い、可動接触導電板９が上下動する度に該可動接
触導電板９の両側縁が可動鉄片８に形成した一対
の案内突起部５８，５９間に位置して左右にずれ
動こうとする力が作用するとき可動鉄片８に形成
した案内突起部５８，５９には、これの折り曲げ
線５８ａ，５９ａと平行な方向の力として作用す
るため、該案内突起部５８，５９の内端面５８
ｂ，５９ｂに曲げ応力が掛つても強度的に十分で
あり従来の案内突起部５２，５３（第１図、第４
図参照）に比べ折れる事はない。 In this way, each time the movable contact conductive plate 9 moves up and down in accordance with the opening/closing operation of the electromagnetic contactor, both side edges of the movable contact conductive plate 9 are moved between the pair of guide protrusions 58 and 59 formed on the movable iron piece 8. When a force acts on the guide protrusions 58 and 59 formed on the movable iron piece 8 to cause it to shift from side to side after being positioned, it acts on the guide protrusions 58 and 59 as a force in a direction parallel to the bending lines 58a and 59a. Inner end surfaces 58 of protrusions 58 and 59
Even if bending stress is applied to the guide protrusions 52, 53 (Figs. 1 and 4), they have sufficient strength.
(see figure), it is less likely to break.

考案の効果 上述したように本考案による電磁接触器を用い
れば、可動鉄片の端部に形成した一対の案内突起
部はその折曲げ線が可動接触導電板両側縁と直角
になるようにした上方へ折り曲げてなるものであ
るから、電磁接触器に開閉動作に伴ない、可動接
触導電板の上下動のとき一対の案内突起部の内端
面に曲げ応力が掛ることがあつても前記案内突起
部は強度的に折れにくいという効果を奏する。Effects of the invention As described above, if the electromagnetic contactor of the invention is used, the pair of guide protrusions formed at the end of the movable iron piece can be bent upward so that the bending lines are perpendicular to both side edges of the movable contact conductive plate. Therefore, even if bending stress is applied to the inner end surfaces of the pair of guide protrusions when the movable contact conductive plate moves up and down as the electromagnetic contactor opens and closes, the guide protrusions has the effect of being hard to break in terms of strength.

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

第１図および第２図は夫々従来の電磁接触器の
一例を示す正面図および平面図、第３図は第１図
の要部説明図、第４図ａ〜ｃは夫々第１図の可動
鉄片の平面図、背面図および右側面図、第５図お
よび第６図は夫々本考案による電磁接触器の一実
施例を示す正面図および平面図、第１図ａ〜ｃは
夫々第５図の可動鉄片の平面図、背面図および右
側面図であつて、図中８は可動鉄片、９は可動接
触導電板、３７〜３９は接点、５８，５９は案内
突起部、５８ａ，５９ａは折曲げ線を示す。 1 and 2 are a front view and a plan view, respectively, showing an example of a conventional electromagnetic contactor, FIG. 3 is an explanatory diagram of the main part of FIG. 1, and FIGS. 4 a to c are respectively movable parts of FIG. A plan view, a back view, and a right side view of the iron piece, FIGS. 5 and 6 are respectively a front view and a plan view showing an embodiment of the electromagnetic contactor according to the present invention, and FIGS. 1 a to 1 c are respectively shown in FIG. These are a plan view, a back view, and a right side view of a movable iron piece, in which 8 is a movable iron piece, 9 is a movable contact conductive plate, 37 to 39 are contacts, 58 and 59 are guide protrusions, and 58a and 59a are foldable iron pieces. Indicates bend line.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 可動鉄片の上側に、端部に接点を有する可動接
触導電板を配置して、両者を貫通するピンと、ピ
ンに巻装した装触ばねにより可動鉄片と可動接触
導電板を圧接結合し、且つ可動鉄片の端部に間隔
をおいて設けた一対の案内突起部の間に前記可動
接触導電板を配置し、可動鉄片の側に復帰ばねを
介して励磁コイルを配設し、可動鉄片の追従した
可動接触導電板の上下動により主接点の開閉を行
なう電磁接触器において、前記一対の案内突起部
は、その折曲げ線を可動接触導電板の両側縁と直
交する方向に設けて上方へ折曲げ成形してなるこ
とを特徴とする電磁接触器。 A movable contact conductive plate having a contact point at the end is arranged above the movable iron piece, and the movable iron piece and the movable contact conductive plate are pressure-connected by a pin passing through both and a mounting spring wrapped around the pin, and the movable contact conductive plate is movable. The movable contact conductive plate is arranged between a pair of guide protrusions spaced apart from each other at the end of the iron piece, and an excitation coil is arranged on the side of the movable iron piece via a return spring, so that the movable contact conductive plate follows the movable iron piece. In an electromagnetic contactor that opens and closes a main contact by vertical movement of a movable contact conductive plate, the pair of guide protrusions are bent upward with bending lines perpendicular to both side edges of the movable contact conductive plate. An electromagnetic contactor characterized by being molded.