JPH0612954A - Electromagnetic relay - Google Patents

Abstract

PURPOSE:To provide a case with a structure of preventing an insulating cutting chip from being produced which is a main cause of improper contact in the case of assembly. CONSTITUTION:In an electromagnetic relay, a drive part 2 is fitted to be inserted to a tubular case 3 formed of insulating material to provide contact springs 11. The case 3 comprises two case constitutional members 34 of plane viewed U shape provided with a recessed part 32 and a protruded part 33 in both side minor axis parts 31, to provide constitution so as to connect the protruded part 33, provided in the one case constitutional member 34, fitted to the recessed part 32 provided in the other case constitutional member 34.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は絶縁体よりなり接点ばね
を具えた筒状のケースに駆動部が嵌挿された電磁継電器
に係り、特に組立に際して接触不良の要因となる絶縁性
の削り屑を生じることのないケースの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic relay in which a drive portion is inserted into a tubular case made of an insulating material and provided with a contact spring, and particularly to an insulating shaving that causes a contact failure during assembly. It relates to the structure of the case that does not cause.

【０００２】電磁継電器の組立工程において絶縁体に当
接した金属部材を移動させると絶縁体が削られて絶縁性
の削り屑が生じる。かかる絶縁性の削り屑は極く小さい
ものであっても内部に残留していると接点の表面に付着
し接触不良の要因になる。When a metal member that is in contact with an insulator is moved in the process of assembling an electromagnetic relay, the insulator is shaved and insulating shavings are produced. Even if such insulating shavings are extremely small, if they remain inside, they adhere to the surface of the contact and cause poor contact.

【０００３】しかるに電磁継電器の構成部材にはプラス
チック等の絶縁体が多く用いられ絶縁性の削り屑を生じ
る可能性が高い。そこで組立に際して接触不良の要因と
なる絶縁性の削り屑を生じることのない構造を具えた部
材の開発が要望されている。However, since an insulator such as plastic is often used as a constituent member of the electromagnetic relay, there is a high possibility that insulating shavings will be produced. Therefore, there is a demand for the development of a member having a structure that does not generate insulating shavings that cause poor contact during assembly.

【０００４】[0004]

【従来の技術】図３は従来の電磁継電器を示す分割斜視
図である。図において従来の電磁継電器は長方形をした
筒状のケース１とケース１内に嵌挿される駆動部２とで
構成されており、固定接点ばね11や駆動部２によって駆
動される可動接点ばね12はケース１の外壁部にインサー
トモールドされている。2. Description of the Related Art FIG. 3 is a divided perspective view showing a conventional electromagnetic relay. In the figure, the conventional electromagnetic relay is composed of a rectangular tubular case 1 and a drive section 2 that is fitted and inserted into the case 1. The fixed contact spring 11 and the movable contact spring 12 driven by the drive section 2 are It is insert-molded on the outer wall of the case 1.

【０００５】また、駆動部２はコイルボビン21に捲回さ
れたコイル22とコイル22を貫通する鉄芯23およびＬ字状
の継鉄24を有し、鉄芯23の下端を継鉄24の短軸側に設け
られた孔に嵌挿し締結することによって鉄芯23と継鉄24
は一体化されている。Further, the drive unit 2 has a coil 22 wound around a coil bobbin 21, an iron core 23 penetrating the coil 22 and an L-shaped yoke 24, and the lower end of the iron core 23 is short of the yoke 24. The iron core 23 and the yoke 24 can be fitted by inserting and fastening them in the holes provided on the shaft side.
Are integrated.

【０００６】継鉄24の長軸側先端に揺動自在に装着され
たＬ字状の接極子25は一方に鉄芯23の端面と対向する面
を具えており、他方の先端近傍には可動接点ばね12に当
接し動作時には可動接点ばね12を押し上げる絶縁性のカ
ード26を具えている。An L-shaped armature 25, which is swingably attached to the distal end of the yoke 24 on the long axis side, has a surface facing the end surface of the iron core 23 on one side and is movable near the other end. An insulative card 26 is provided which contacts the contact spring 12 and pushes up the movable contact spring 12 during operation.

【０００７】前記ケース１は内側に継鉄24の上面に当接
するストッパ13と継鉄24の下面に当接する固定爪14を突
出させており、組立が完了した駆動部２を下側からケー
ス１内に嵌挿することによって固定爪14が継鉄24に係合
するよう構成されている。The case 1 has a stopper 13 that abuts the upper surface of the yoke 24 and a fixed claw 14 that abuts the lower surface of the yoke 24. The fixed claw 14 is configured to engage with the yoke 24 by being inserted therein.

【０００８】[0008]

【発明が解決しようとする課題】しかし、従来の電磁継
電器は組立が完了した駆動部を下側からケース内に嵌挿
する際に固定爪が継鉄によって削られ、発生した削り屑
が固定接点ばねや可動接点ばねに固着された接点に付着
して接触不良を生じるという問題があった。However, in the conventional electromagnetic relay, when the assembled drive unit is inserted into the case from the lower side, the fixed claw is scraped by the yoke, and the shavings generated are fixed contact points. There is a problem in that a contact failure is caused by adhesion to a contact fixed to a spring or a movable contact spring.

【０００９】本発明の目的は組立に際し接触不良の要因
となる絶縁性の削り屑を生じることのない構造を具えた
ケースを提供することにある。It is an object of the present invention to provide a case having a structure that does not generate insulating shavings that cause poor contact during assembly.

【００１０】[0010]

【課題を解決するための手段】図１は本発明になる電磁
継電器を示す分割斜視図である。なお全図を通し同じ対
象物は同一記号で表している。FIG. 1 is a divided perspective view showing an electromagnetic relay according to the present invention. Note that the same object is denoted by the same symbol throughout the drawings.

【００１１】上記課題は絶縁体よりなり固定接点ばねや
可動接点ばねが外壁部にインサートモールドされた筒状
のケースと、ケースの内部に装着され可動接点ばねを駆
動する駆動部とで構成されてなる電磁継電器において、
両側の短軸部31に凹部32と凸部33を具えた平面視コ字状
の２個のケース構成部材34からなり、一方のケース構成
部材34が有する凸部33を他方のケース構成部材34が有す
る凹部32に嵌入し、ケース構成部材34を結合するよう構
成されたケース３を具えてなる本発明の電磁継電器によ
って達成される。The above-mentioned problem is composed of a cylindrical case which is made of an insulating material and in which a fixed contact spring or a movable contact spring is insert-molded on the outer wall portion, and a drive unit which is mounted inside the case and drives the movable contact spring. In the electromagnetic relay
It is composed of two case-constituting members 34 each having a U-shape in plan view, each of which has a concave portion 32 and a convex portion 33 on the short shaft portion 31 on both sides, and the convex portion 33 of one case constituting member 34 has the other case constituting member 34. This is achieved by the electromagnetic relay of the present invention, which comprises a case 3 which is configured to fit in the recess 32 of the and to connect the case component 34.

【００１２】[0012]

【作用】図１において両側の短軸部に凹部と凸部を具え
た平面視コ字状の２個のケース構成部材からなり、一方
のケース構成部材が有する凸部を他方のケース構成部材
が有する凹部に嵌入し、ケース構成部材を結合するよう
構成された本発明になる電磁継電器に用いたケースは、
ケースの内側に突出させたストッパと固定爪の間に側方
から継鉄を嵌入させることが可能になり、組立に際し接
触不良の要因となる絶縁性の削り屑を生じることのない
構造を具えたケースを実現できる。In FIG. 1, it is composed of two case-constituting members each having a U-shape in a plan view and having a concave portion and a convex portion on both sides of a short shaft portion, and one case constituting member has a convex portion and the other case constituting member has a convex portion. The case used in the electromagnetic relay according to the present invention, which is configured to be fitted into the recessed portion and which is configured to join the case constituent members,
It is possible to insert a yoke from the side between the stopper and the fixed claw that protrudes inside the case, and it has a structure that does not generate insulating shavings that cause poor contact during assembly. The case can be realized.

【００１３】[0013]

【実施例】以下添付図により本発明の実施例について説
明する。なお図２は本発明の他の実施例を示す分割斜視
図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. 2 is a divided perspective view showing another embodiment of the present invention.

【００１４】図１において本発明になる電磁継電器は筒
状のケース３とケース３内に装着される駆動部２とで構
成されており、固定接点ばね11や駆動部２によって駆動
される可動接点ばね12はケース３の外壁部にインサート
モールドされている。In FIG. 1, the electromagnetic relay according to the present invention comprises a cylindrical case 3 and a drive section 2 mounted in the case 3, and a fixed contact spring 11 and a movable contact driven by the drive section 2. The spring 12 is insert-molded on the outer wall of the case 3.

【００１５】筒状のケース３は両側の短軸部31に凹部32
と凸部33を具えた平面視コ字状の２個のケース構成部材
34によって構成され、一方のケース構成部材34が有する
凸部33を他方のケース構成部材34が有する凹部32に嵌入
することにより結合される。The tubular case 3 has recesses 32 in the short shaft portions 31 on both sides.
Two case-constituting members that are U-shaped in plan view and that have a protrusion 33
The case 33 is constituted by 34, and the projection 33 of one case component 34 is fitted into the recess 32 of the other case component 34 to be joined.

【００１６】また、駆動部２はコイルボビン21に捲回さ
れたコイル22とコイル22を貫通する鉄芯23およびＬ字状
の継鉄24を有し、鉄芯23の下端を継鉄24の短軸側に設け
られた孔に嵌挿し締結することによって鉄芯23と継鉄24
は一体化されている。The drive unit 2 has a coil 22 wound around a coil bobbin 21, an iron core 23 penetrating the coil 22 and an L-shaped yoke 24, and the lower end of the iron core 23 is shorter than the yoke 24. The iron core 23 and the yoke 24 can be fitted by inserting and fastening them in the holes provided on the shaft side.
Are integrated.

【００１７】継鉄24の長軸側先端に揺動自在に装着され
たＬ字状の接極子25は一方に鉄芯23の端面と対向する面
を具えており、他方の先端近傍には可動接点ばね12に当
接し動作時には可動接点ばね12を押し上げる絶縁性のカ
ード26を具えている。An L-shaped armature 25, which is swingably attached to the tip of the yoke 24 on the major axis side, has a surface facing the end surface of the iron core 23 on one side and is movable near the other end. An insulative card 26 is provided which contacts the contact spring 12 and pushes up the movable contact spring 12 during operation.

【００１８】ケース構成部材34は内側に継鉄24の上面に
当接するストッパ13と継鉄24の下面に当接する固定爪14
が突出しており、駆動部２に側方から２個のケース構成
部材34を装着することによってストッパ13と固定爪14の
間に継鉄24が係合される。The case component 34 includes a stopper 13 which contacts the upper surface of the yoke 24 and a fixing claw 14 which contacts the lower surface of the yoke 24.
The yoke 24 is engaged between the stopper 13 and the fixed claw 14 by mounting the two case component members 34 on the drive unit 2 from the side.

【００１９】なお、凸部33は駆動部２に装着したケース
構成部材34を継鉄24に沿って移動させることによって凹
部32に嵌入しており、そのままではケース構成部材34が
再び継鉄24に沿って移動し凸部33が凹部32から抜け出し
てケース３が分解される。The convex portion 33 is fitted in the concave portion 32 by moving the case constituent member 34 mounted on the drive unit 2 along the yoke 24, and the case constituent member 34 is again attached to the yoke 24 as it is. The case 3 is disassembled by moving along and the convex portion 33 comes out of the concave portion 32.

【００２０】しかし、かかる電磁継電器はケース３の底
部開口に嵌挿して周囲がケース３に接合されるベース４
を具えており、駆動部２にケース構成部材34を装着し底
部開口にベース４を嵌挿することによってケース構成部
材34の移動を防止できる。However, such an electromagnetic relay is fitted in the bottom opening of the case 3 and its periphery is joined to the case 3 by the base 4.
It is possible to prevent the case constituent member 34 from moving by mounting the case constituent member 34 on the drive unit 2 and inserting the base 4 into the bottom opening.

【００２１】また、本発明の他の実施例は図２(a) に示
す如く筒状のケース３とケース３内に装着される駆動部
とで構成されており、固定接点ばね11や駆動部２によっ
て駆動される可動接点ばね12はケース３の外壁部にイン
サートモールドされている。Further, another embodiment of the present invention comprises a cylindrical case 3 and a drive portion mounted in the case 3 as shown in FIG. 2 (a), and includes a fixed contact spring 11 and a drive portion. The movable contact spring 12 driven by 2 is insert-molded on the outer wall of the case 3.

【００２２】筒状のケース３は両側の短軸部31に凹部32
と凸部33を具えた平面視コ字状の２個のケース構成部材
34によって構成され、一方のケース構成部材34が有する
凸部33を他方のケース構成部材34が有する凹部32に嵌入
することにより結合される。The tubular case 3 has recesses 32 in the short shaft portions 31 on both sides.
Two case-constituting members that are U-shaped in plan view and that have a protrusion 33
The case 33 is constituted by 34, and the projection 33 of one case component 34 is fitted into the recess 32 of the other case component 34 to be joined.

【００２３】しかし、前記実施例のケース３とは異なり
凹部32が図２(b) の如く第１のステップ35と第２のステ
ップ36を有し、凸部33が第１のステップ35に嵌入すると
ケース３の幅が広がり第２のステップ36に移動するとケ
ース３の幅が縮小される。However, unlike the case 3 of the above-mentioned embodiment, the concave portion 32 has the first step 35 and the second step 36 as shown in FIG. 2 (b), and the convex portion 33 fits into the first step 35. Then, the width of the case 3 is widened, and the width of the case 3 is reduced when moving to the second step 36.

【００２４】第１のステップ35に凸部33が嵌入されたケ
ース３に駆動部２を装着したあとケース構成部材34の側
面に圧力を加え、凸部33を第１のステップ35から第２の
ステップ36に移動させることによってケース３を所定の
形状に戻すことができる。After mounting the drive unit 2 on the case 3 in which the convex portion 33 is fitted in the first step 35, pressure is applied to the side surface of the case constituent member 34 to move the convex portion 33 from the first step 35 to the second step 35. The case 3 can be returned to a predetermined shape by moving to step 36.

【００２５】ケース構成部材34は内側に継鉄24の上面に
当接するストッパ13と継鉄24の下面に当接する固定爪14
が突出しており、駆動部２を装着した後ケース３を所定
の形状に戻すことによってストッパ13と固定爪14の間に
継鉄24が係合される。The case forming member 34 includes a stopper 13 that contacts the upper surface of the yoke 24 and a fixing claw 14 that contacts the lower surface of the yoke 24.
, And the yoke 24 is engaged between the stopper 13 and the fixed claw 14 by returning the case 3 to a predetermined shape after mounting the drive unit 2.

【００２６】このように両側の短軸部に凹部と凸部を具
えた平面視コ字状の２個のケース構成部材からなり、一
方のケース構成部材が有する凸部を他方のケース構成部
材が有する凹部に嵌入し、ケース構成部材を結合するよ
う構成された本発明になる電磁継電器に用いたケース
は、ケースの内側に突出させたストッパと固定爪の間に
側方から継鉄を嵌入させることが可能になり、組立に際
し接触不良の要因となる絶縁性の削り屑を生じることの
ない構造を具えたケースを実現できる。As described above, it is composed of two case-constituting members each having a U-shape in plan view having the concave portion and the convex portion on both sides, and the convex portion of one case constituting member is the other case constituting member. The case used in the electromagnetic relay according to the present invention, which is configured to be fitted in the recessed portion and to join the case constituent members, has a yoke inserted laterally between the stopper and the fixing claw protruding inside the case. Therefore, it is possible to realize a case having a structure that does not generate insulating shavings that cause poor contact during assembly.

【００２７】[0027]

【発明の効果】上述の如く本発明によれば組立に際し接
触不良の要因となる絶縁性の削り屑を生じることのない
構造を具えたケースを提供することができる。As described above, according to the present invention, it is possible to provide a case having a structure that does not generate insulating shavings that cause poor contact during assembly.

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

【図１】 本発明になる電磁継電器を示す分割斜視図で
ある。FIG. 1 is a divided perspective view showing an electromagnetic relay according to the present invention.

【図２】 本発明の他の実施例を示す分割斜視図であ
る。FIG. 2 is a divided perspective view showing another embodiment of the present invention.

【図３】 従来の電磁継電器を示す分割斜視図である。FIG. 3 is a divided perspective view showing a conventional electromagnetic relay.

【符号の説明】[Explanation of symbols]

２ 駆動部 ３ ケース ４ ベース 11 固定接点ばね 12 可動接点ばね 13 ストッパ 14 固定爪 21 コイルボビン 22 コイル 23 鉄芯 24 継鉄 25 接極子 26 カード 31 短軸部 32 凹部 33 凸部 34 ケース構成部材 35 第１のステップ 36 第２のステップ 2 Drive part 3 Case 4 Base 11 Fixed contact spring 12 Movable contact spring 13 Stopper 14 Fixed pawl 21 Coil bobbin 22 Coil 23 Iron core 24 Yoke 25 Armature 26 Card 31 Short shaft part 32 Recess 33 Convex part 34 Case component 35 No. Step 1 36 Step 2

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 絶縁体よりなり固定接点ばねや可動接点
ばねが外壁部にインサートモールドされた筒状のケース
と、該ケースの内部に装着され該可動接点ばねを駆動す
る駆動部とで構成されてなる電磁継電器において、 両側の短軸部(31)に凹部(32)と凸部(33)を具えた平面視
コ字状の２個のケース構成部材(34)からなり、一方の該
ケース構成部材(34)が有する凸部(33)を他方の該ケース
構成部材(34)が有する凹部(32)に嵌入し、該ケース構成
部材(34)を結合するよう構成されたケース(3) を具えて
なることを特徴とする電磁継電器。1. A cylindrical case, which is made of an insulating material, in which a fixed contact spring and a movable contact spring are insert-molded on an outer wall portion, and a drive unit which is mounted inside the case and drives the movable contact spring. The electromagnetic relay consisting of two case-constituting members (34) having a U-shape in plan view, having concave portions (32) and convex portions (33) on both sides of the short shaft portion (31) A case (3) configured to fit the convex portion (33) of the constituent member (34) into the concave portion (32) of the other case constituent member (34) to join the case constituent member (34) An electromagnetic relay characterized by comprising. 【請求項２】 請求項１記載の電磁継電器において凸部
(33)を第１のステップ(35)に嵌入するとケース(3) の幅
が広がり、該凸部(33)を第２のステップ(36)に移動させ
ると該ケース(3) の幅が縮小されるよう構成された凹部
(32)を有し、 かつ、ケース構成部材(34)の側面に圧力を加えることに
よって該第１のステップ(35)に嵌入された該凸部(33)
が、該第２のステップ(36)に移動するよう構成された該
ケース(3) を具えてなることを特徴とする電磁継電器。2. The electromagnetic relay according to claim 1, wherein the convex portion is provided.
Inserting (33) into the first step (35) widens the width of the case (3), and moving the convex part (33) to the second step (36) reduces the width of the case (3). Recess configured to
The convex portion (33) having the (32) and fitted into the first step (35) by applying pressure to the side surface of the case constituting member (34).
An electromagnetic relay comprising the case (3) configured to move to the second step (36).