JP4305442B2 - Manufacturing method of electromagnetic relay - Google Patents

Manufacturing method of electromagnetic relay Download PDF

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JP4305442B2
JP4305442B2 JP2005339252A JP2005339252A JP4305442B2 JP 4305442 B2 JP4305442 B2 JP 4305442B2 JP 2005339252 A JP2005339252 A JP 2005339252A JP 2005339252 A JP2005339252 A JP 2005339252A JP 4305442 B2 JP4305442 B2 JP 4305442B2
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holding portion
holding
contact
movable
electromagnetic relay
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浩隆 宮田
正則 中村
博紀 真田
正浩 桑原
雅彦 田代
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Omron Corp
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Description

本発明は電磁継電器の製造方法に関するものである。   The present invention relates to a method for manufacturing an electromagnetic relay.

従来、電磁継電器として、例えば、図９に示すように、ベース１に載置されるコイルブロック２の一端側上端部に可動部材３を回動自在に支持したものがある。可動部材３は、可動接触片４と可動鉄片５とを樹脂製の保持部材６により絶縁状態で一体化したものである。可動部材３は、複数本並設した可動接触片４をインサート成形により保持部材６で一体化し、この保持部材６に可動鉄片５を結合一体化して形成される。   Conventionally, as an electromagnetic relay, for example, as shown in FIG. 9, there is one in which a movable member 3 is rotatably supported on an upper end portion on one end side of a coil block 2 placed on a base 1. The movable member 3 is obtained by integrating a movable contact piece 4 and a movable iron piece 5 with a resin holding member 6 in an insulated state. The movable member 3 is formed by integrating a plurality of movable contact pieces 4 arranged side by side by a holding member 6 by insert molding, and connecting and integrating the movable iron piece 5 to the holding member 6.

この電磁継電器では、コイルブロック２が無励磁の状態では、スプリング７の付勢力により、図９中、反時計回り方向に回動し、可動接触片４の下端に設けた可動接点４ａが、ベース１に圧入固定した固定端子８の固定接点８ａに当接している。そして、コイルブロック２を励磁すると、その端面に突出する鉄心９に前記可動鉄片５が吸引され、可動部材３が図９中時計回り方向に回動し、前記可動接点４ａが他の固定端子１０の固定接点１０ａに当接する。   In this electromagnetic relay, when the coil block 2 is in a non-excited state, it is rotated counterclockwise in FIG. 9 by the biasing force of the spring 7, and the movable contact 4a provided at the lower end of the movable contact piece 4 is 1 is in contact with the fixed contact 8a of the fixed terminal 8 which is press-fitted and fixed to 1. When the coil block 2 is excited, the movable iron piece 5 is attracted to the iron core 9 protruding from the end face, the movable member 3 rotates in the clockwise direction in FIG. 9, and the movable contact 4a is connected to the other fixed terminal 10. The fixed contact 10a.

しかしながら、前記電磁継電器では、プレス加工等の精度の限界により、可動鉄片５の板厚及びメッキ厚にばらつきがある（約±0.05mm）。このばらつきは、鉄心９に直接吸引される可動鉄片５の吸着面５ａと可動接触片４との距離、ひいては前記吸着面５ａと可動接点４ａとの位置関係に影響する。つまり、可動接点４ａと固定接点１０ａの接点間距離や接触圧等にばらつきが生じる要因となる。このため、所望の動作特性が得られるように、後工程で人手による調整作業が必要となり、コストアップを招来している。   However, in the electromagnetic relay, there are variations in the plate thickness and plating thickness of the movable iron piece 5 (about ± 0.05 mm) due to the limit of accuracy such as press working. This variation affects the distance between the attracting surface 5a of the movable iron piece 5 and the movable contact piece 4 attracted directly to the iron core 9, and the positional relationship between the attracting surface 5a and the movable contact 4a. That is, the distance between the contact between the movable contact 4a and the fixed contact 10a, the contact pressure, and the like are factors. For this reason, manual adjustment work is required in the post-process so as to obtain desired operation characteristics, resulting in an increase in cost.

また、可動接触片４と可動鉄片５とを所定の絶縁状態にするため、両者の間に図１０（ｂ）に示すような所定の間隙ｇを形成する必要がある。すなわち、前記保持部材６を成形するための金型を、図１０（ｂ）の矢印ｂ―ｂ方向に分離するだけの構造としただけでは、前記間隙ｇを形成することはできない。このため、図１０（ａ）のａ―ａ方向に移動可能な薄肉のスライドコア（図示せず）を必要とし、金型構造が複雑となり、この点でもコストアップを招来している。   Further, in order to bring the movable contact piece 4 and the movable iron piece 5 into a predetermined insulating state, it is necessary to form a predetermined gap g as shown in FIG. That is, the gap g cannot be formed only by using a structure for separating the holding member 6 in the arrow bb direction in FIG. 10B. For this reason, a thin slide core (not shown) movable in the direction aa in FIG. 10A is required, the mold structure becomes complicated, and this also raises the cost.

そこで、本発明は、簡単かつ安価に製作できる電磁継電器の製造方法を提供することを課題とする。   Then, this invention makes it a subject to provide the manufacturing method of the electromagnetic relay which can be manufactured simply and cheaply.

前記課題を達成するため、本発明では、
可動接触片と可動鉄片とを保持部材に絶縁状態で一体化して可動部材を形成する電磁継電器の製造方法において、
前記可動接触片の一部を基準としてインサート成形することにより、当接面を備えた第１保持部を形成する第１保持部１次成形工程と、
前記可動鉄片の一部を基準としてインサート成形することにより、当接受面を備えた第２保持部を形成する、前記第１保持部１次成形工程とは別に行う第２保持部１次成形工程と、
前記第２保持部１次成形工程により得られた当接受面に、前記第１保持部１次成形工程により得られた当接面を当接させた状態で、第１保持部と第２保持部を一体化して保持部材とすることにより可動部材を形成する可動部材２次成形工程と、により行うものである。 In order to achieve the above object, in the present invention,
In the electromagnetic relay manufacturing method of forming the movable member by integrating the movable contact piece and the movable iron piece in an insulating state with the holding member,
By insert-molding with respect to the portion of the movable contact piece, a first holding portion primary molding step of forming a first holding portion having a contact surface,
By insert-molding with respect to the portion of the movable iron piece, contact receiving surface to form a second holding portion having a second holding part linear performed separately from the first holding portion primary molding step Molding process;
The contact receiving surface was obtained, et al by the second holding portion primary molding step, being in contact with abutment surface was obtained, et al by the first holding portion primary molding step, first the first holding portion 2 A movable member secondary forming step of forming a movable member by integrating the holding portions into a holding member .

前記第１保持部１次成形工程では、所定間隔で並設した可動接触片と各リード線との接続部分を含めてインサート成形することにより、当接面を備えた第１保持部を形成するのが好ましい。 In the first holding part primary forming step, the first holding part having the contact surface is formed by insert molding including the connecting portions of the movable contact pieces and the lead wires arranged in parallel at predetermined intervals. Is preferred.

前記第２保持部１次成形工程では、前記第２保持部により前記可動鉄片の前記可動接触片との対向面を被覆し、その一部を当接受面とするのが好ましい。 In the second holding portion primary molding step, the covering the facing surface of the said movable contact piece of the movable iron piece by the second holding portion, preferably a part with contact receiving surface.

前記可動鉄片２次成形工程では、前記第１保持部の当接面とは反対側の面に形成した凹所に樹脂を充填し、該樹脂を、凹所に開口する樹脂流通孔を介して前記第２保持部の当接受面とは反対側の面へと流動させて固化させるのが好ましい。  In the movable iron piece secondary molding step, a resin is filled in a recess formed on a surface opposite to the contact surface of the first holding portion, and the resin passes through a resin flow hole that opens in the recess. It is preferable that the second holding portion is caused to flow to a surface opposite to the contact receiving surface to be solidified.
前記仮止め工程では、前記当接面の近傍に形成した貫通孔を、仮止め用の突部を係合する係合孔とするのが好ましい。  In the temporary fixing step, it is preferable that the through hole formed in the vicinity of the contact surface is an engagement hole for engaging the temporary fixing protrusion.

本発明によれば、可動接触片と可動鉄片とを一体化する保持部材を、可動接触片を保持する第１保持部と、可動鉄片を保持する第２保持部とで形成するようにしたので、成形加工の際に従来のようなスライドコアを必要とせず、金型構造を簡略化してコストを抑えることができる。また、第２保持部を成形加工する際、可動鉄片に生じた加工精度のばらつきを吸収でき、高精度な仕上がり状態を得ることができる。   According to the present invention, the holding member that integrates the movable contact piece and the movable iron piece is formed by the first holding portion that holds the movable contact piece and the second holding portion that holds the movable iron piece. In the molding process, the conventional slide core is not required, and the mold structure can be simplified and the cost can be reduced. In addition, when the second holding portion is formed, it is possible to absorb variations in processing accuracy that have occurred in the movable iron piece, and to obtain a highly accurate finished state.

特に、第１保持部と第２保持部とを一体化する場合、前記第１保持部と第２保持部とを、いずれか一方に形成した仮止め用の突部を残る他方に形成した仮止め用の係合孔に係合することにより、２次成形前に仮止めするので、成形の際に位置ズレが生じず、作業性が向上する。   In particular, when the first holding part and the second holding part are integrated, the first holding part and the second holding part are temporarily formed on the other remaining temporary fixing protrusion formed on either side. By engaging with the engaging hole for stopping, it is temporarily fixed before the secondary molding, so that the positional deviation does not occur during the molding and the workability is improved.

以下、本発明の実施の形態を添付図面に従って説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

本発明の一実施形態に係る電磁継電器は、図１に示すように、大略、ベース１１、コイルブロック１２、可動ブロック１３及びケース１４からなる。   As shown in FIG. 1, the electromagnetic relay according to one embodiment of the present invention generally includes a base 11, a coil block 12, a movable block 13, and a case 14.

ベース１１は略矩形板状で、一端側には、第１及び第２固定端子１５，１６が都合４組圧入固定され、これらの第１及び第２固定接点１５ａ，１６ａが所定間隔で対向している。また、ベース１１の他端側には、両側縁部に一対のコイル端子１７がそれぞれ圧入一体化されている。   The base 11 has a substantially rectangular plate shape. The first and second fixed terminals 15 and 16 are conveniently press-fitted and fixed on one end side, and the first and second fixed contacts 15a and 16a face each other at a predetermined interval. ing. Further, a pair of coil terminals 17 are press-fitted and integrated with both side edges on the other end side of the base 11.

コイルブロック１２は、スプール１８に鉄心１９を挿通すると共にコイル２０を巻回し、スプール１８の一方の鍔部1８ａから突出する鉄心１９の一端部を、前記ベース１１に立設したヨーク２１の垂直壁２１ａにかしめ固定したものである。   The coil block 12 inserts the iron core 19 into the spool 18 and winds the coil 20, and one end of the iron core 19 protruding from one flange portion 18 a of the spool 18 has a vertical wall of a yoke 21 erected on the base 11. 21a is fixed by caulking.

可動ブロック１３は、可動部材２２及び端子部材２３からなる。   The movable block 13 includes a movable member 22 and a terminal member 23.

可動部材２２は、４つの可動接触片２４と可動鉄片２５とを保持部材２６で一体化したものである。可動接触片２４は、図２（ａ）に示すように、一端部両面に可動接点２４ａを有するもので、他端部にはリード線２７が接続されている。   The movable member 22 is obtained by integrating four movable contact pieces 24 and a movable iron piece 25 with a holding member 26. As shown in FIG. 2A, the movable contact piece 24 has a movable contact 24a on both surfaces of one end portion, and a lead wire 27 is connected to the other end portion.

可動鉄片２５は、図２（ｃ）に示すように、一端部中央に突出する係止片２５ａと、その両側に突出する支点部２５ｂと、上方両側２箇所に開口する貫通孔２５ｃとを有するものである。そして、前記可動鉄片２５の支点部２５ｂは、前記ヨーク２１の水平壁２１ｂ先端に形成した支持部２１ｃに回動自在に支持される。   As shown in FIG. 2 (c), the movable iron piece 25 has a locking piece 25a protruding at the center of one end, fulcrum portions 25b protruding on both sides thereof, and through holes 25c opened at two locations on both upper sides. Is. And the fulcrum part 25b of the said movable iron piece 25 is rotatably supported by the support part 21c formed in the horizontal wall 21b front-end | tip of the said yoke 21. As shown in FIG.

保持部材２６は第１保持部２８及び第２保持部２９からなる。   The holding member 26 includes a first holding part 28 and a second holding part 29.

第１保持部２８は、図２（ｂ）に示すように、所定間隔で並設した可動接触片２４をリード線２７の接続部分でインサート成形（１次成形）によって一体化したものである。この１次成形では、従来のようにスライドコアを必要とする部分がなく、図３に示すように、簡単な構成の金型Ｘ１，Ｙ１で成形できる。しかも、可動接触片２４の一部を直接金型Ｙ１のキャビティ内面Ｙ１ａに当接させた状態で成形加工できるので、可動接触片２４と、成形された第１保持部２８の一方の面（当接面２８ａ）との距離ｘ１を、成形加工による誤差の範囲内に抑えることができる（本実施の形態での誤差は±0.005mmである。）。前記第１保持部２８の他方の面（露出面２８ｂ）には、中央部側縁に突起２８ｃが突設されると共に凹所３０が形成されている。凹所３０には、中央部に位置する樹脂流入孔３１と、前記突起２８ｃの両側に位置する第１樹脂流動孔３２と、前記樹脂流入孔３１の両側に位置する係合孔３３とがそれぞれ穿設されている。なお、第１保持部２８の両端角部にはそれぞれ第１突部３４が突設されている。   As shown in FIG. 2B, the first holding portion 28 is obtained by integrating the movable contact pieces 24 arranged in parallel at a predetermined interval by insert molding (primary molding) at the connection portion of the lead wire 27. In this primary molding, there is no portion that requires a slide core as in the prior art, and as shown in FIG. 3, molding can be performed with simple molds X1 and Y1. Moreover, since molding can be performed with a part of the movable contact piece 24 in direct contact with the cavity inner surface Y1a of the mold Y1, the movable contact piece 24 and one surface of the molded first holding portion 28 (the contact The distance x1 with the contact surface 28a) can be suppressed within the range of error due to molding (the error in the present embodiment is ± 0.005 mm). On the other surface (exposed surface 28 b) of the first holding portion 28, a protrusion 28 c protrudes from the center side edge and a recess 30 is formed. The recess 30 includes a resin inflow hole 31 located at the center, a first resin flow hole 32 located on both sides of the protrusion 28c, and an engagement hole 33 located on both sides of the resin inflow hole 31. It has been drilled. In addition, the 1st protrusion 34 is protrudingly provided in the both-ends corner part of the 1st holding | maintenance part 28, respectively.

一方、第２保持部２９は、前記第１保持部２８とは別に、可動鉄片２５をインサート成形（１次成形）で一体化したものである。この１次成形では、従来のようにスライドコアを必要とする部分がなく、図４に示すように、可動鉄片２５の吸着面２５ａを金型Ｙ２のキャビティ内面Ｙ２ａに直接当接させた状態で、第２保持部２９を成形できる。このため、可動鉄片２５の板厚及びメッキ厚の加工精度にばらつきが生じていてもこれらを吸収できる。この結果、前記可動鉄片２５の吸着面２５ａと、その反対側に形成される面（当接受面２９ａ）との間の距離ｘ２を、前記第１保持部２８と同様、成形加工による誤差の範囲内に抑えることができる（本実施の形態での誤差は±0.005mmである。）。前記第２保持部２９の当接受面２９ａには、図２（ｄ）に示すように、前記第１保持部２８の係合孔３３に係合する係合突部３４が突設されると共に挿通孔３５が形成されている。そして、この挿通孔３５と前記可動鉄片２５の貫通孔２５ｃとで第２樹脂流動孔３６を構成している。なお、第２保持部２９の両側縁部には略Ｌ字形の第２突部３７がそれぞれ形成されている。   On the other hand, the second holding part 29 is formed by integrating the movable iron piece 25 by insert molding (primary molding) separately from the first holding part 28. In this primary molding, there is no portion that requires a slide core as in the prior art, and as shown in FIG. 4, the suction surface 25a of the movable iron piece 25 is in direct contact with the cavity inner surface Y2a of the mold Y2. The second holding part 29 can be formed. For this reason, even if dispersion | variation has arisen in the processing precision of the plate | board thickness and plating thickness of the movable iron piece 25, these can be absorbed. As a result, the distance x2 between the attracting surface 25a of the movable iron piece 25 and the surface (abutment receiving surface 29a) formed on the opposite side is set within the range of error due to the molding process, as in the first holding portion 28. (The error in this embodiment is ± 0.005 mm). On the contact receiving surface 29a of the second holding part 29, as shown in FIG. 2 (d), an engaging protrusion 34 that engages with the engaging hole 33 of the first holding part 28 is projected. An insertion hole 35 is formed. The insertion hole 35 and the through hole 25 c of the movable iron piece 25 constitute a second resin flow hole 36. Note that substantially L-shaped second protrusions 37 are respectively formed on both side edges of the second holding portion 29.

前記第１保持部２８と第２保持部２９とはインサート成形（２次成形）により一体化される。この２次成形では、まず、前記第１保持部２８の当接面２８ａ（図３参照）と第２保持部２９の当接受面２９ａとを当接させる。このとき、第１保持部２８の係合孔３３に第２保持部２９の係合突部３４が係合されて両者は仮止めされる。この仮止め状態では、前述のように、可動接触片２４から第１保持部２８の当接面２８ａまでの寸法と、可動鉄片２５の吸着面２５ａから第２保持部２９の当接受面２９ａまでの寸法とが非常に高精度に形成されているため、可動接触片２４から可動鉄片２５の吸着面２５ａまでの寸法も高精度なものとなる。   The first holding part 28 and the second holding part 29 are integrated by insert molding (secondary molding). In the secondary molding, first, the contact surface 28a (see FIG. 3) of the first holding portion 28 and the contact receiving surface 29a of the second holding portion 29 are brought into contact with each other. At this time, the engaging protrusion 34 of the second holding part 29 is engaged with the engaging hole 33 of the first holding part 28, and both are temporarily fixed. In this temporarily fixed state, as described above, the dimension from the movable contact piece 24 to the contact surface 28a of the first holding portion 28, and the suction surface 25a of the movable iron piece 25 to the contact receiving surface 29a of the second holding portion 29. Therefore, the dimension from the movable contact piece 24 to the suction surface 25a of the movable iron piece 25 is also highly accurate.

そして、仮止めした第１保持部２８及び第２保持部２９を図示しない金型のキャビティ内に収容して２次成形を行う。充填される樹脂Ｐ（図５（ｂ）参照）は、第１保持部２８の凹所３０を満たすと共に、樹脂流入孔３１と、第１樹脂流動孔３２及び第２樹脂流動孔３６とを介してそれぞれ第２保持部２９に至る。樹脂流入孔３１を流動する樹脂は、第２保持部２９を越えて樹脂流入孔３１の内径よりも広がる。これにより、第１保持部２８と第２保持部２９との結合状態が強固なものとなる。   Then, the temporarily held first holding portion 28 and second holding portion 29 are accommodated in a cavity of a mold (not shown) to perform secondary molding. The filled resin P (see FIG. 5B) fills the recess 30 of the first holding portion 28, and passes through the resin inflow hole 31, the first resin flow hole 32, and the second resin flow hole 36. Respectively to the second holding part 29. The resin flowing through the resin inflow hole 31 extends beyond the inner diameter of the resin inflow hole 31 beyond the second holding portion 29. Thereby, the coupling | bonding state of the 1st holding | maintenance part 28 and the 2nd holding | maintenance part 29 becomes firm.

このように、第１保持部２８と第２保持部２９とを一体化することにより形成された可動部材２２は、その支点部２５ｂ（図１参照）をヨーク２１の支持部２１ｃによって回動自在に支持され、スプリング３８で図６中反時計回り方向に付勢される。   As described above, the movable member 22 formed by integrating the first holding portion 28 and the second holding portion 29 has its fulcrum portion 25b (see FIG. 1) rotatable by the support portion 21c of the yoke 21. And is urged counterclockwise in FIG.

また、前記第１保持部２８の第１突部３４と第２保持部２９の第２突部３７とにより形成された軸受孔３９に、動作表示部材４０が軸部４０ａを中心として回動自在に設けられる（図６参照）。動作表示部材４０は、上方に突出する一対の腕部４０ｂと、下端部に側方に突出する軸部４０ｃとを有している。   Further, the motion display member 40 is rotatable about the shaft portion 40a in the bearing hole 39 formed by the first protrusion 34 of the first holding portion 28 and the second protrusion 37 of the second holding portion 29. (See FIG. 6). The motion display member 40 has a pair of arm portions 40b protruding upward, and a shaft portion 40c protruding laterally at the lower end portion.

端子部材２３は、前記各可動接触片２４に対応する前記リード線２７の他端部にそれぞれ接続した４つの共通端子４１を並設し、前記１次成形と同時に形成される第３保持部材４２で一体化したものである。第３保持部材４２はベース１１の所定位置に圧入固定され、共通端子４１はベース１１の下面から突出している。   The terminal member 23 includes four common terminals 41 connected in parallel to the other ends of the lead wires 27 corresponding to the movable contact pieces 24, and a third holding member 42 formed simultaneously with the primary molding. It is an integrated product. The third holding member 42 is press-fitted and fixed at a predetermined position of the base 11, and the common terminal 41 protrudes from the lower surface of the base 11.

ケース１４は、図１及び図６に示すように、下面が開口する箱状で、ベース１１に装着されて、前記各構成部品を被覆する。ケース１４の天井壁の一端側両側縁部には、動作表示部材４０の腕部４０ａ先端が目視可能な透明材料からなる窓部１４ａがそれぞれ形成されている。また、ケース１４の側壁内面には、回動規制片１４ｂが形成されている。この回動規制片１４ｂには、前記可動部材２２の回動時、動作表示部材４０の軸部４０ｃが当接して位置規制されるようなっている。   As shown in FIGS. 1 and 6, the case 14 has a box shape with an open bottom surface, and is attached to the base 11 to cover the components. Window portions 14a made of a transparent material in which the tips of the arm portions 40a of the operation display member 40 are visible are formed on both side edges on one end side of the ceiling wall of the case 14 respectively. A rotation restricting piece 14 b is formed on the inner surface of the side wall of the case 14. When the movable member 22 is rotated, the rotation restricting piece 14b is in contact with the shaft portion 40c of the operation display member 40 so that the position is restricted.

前記構成からなる電磁継電器の動作は次の通りである。コイル２０に通電しないコイルブロック１２が無励磁の状態では、スプリング３８の付勢力により可動ブロック１３は図６中、反時計回り方向に回動し、可動接点２４ａが第１固定接点１５ａに当接している。前述のように、可動接触片２４すなわち可動接点２４ａと、可動鉄片２５の吸着面２５ａとの位置関係が高精度に形成されているため、可動接点２４ａと第１固定接点１５ａとの接点間距離にばらつきが発生しない。   The operation of the electromagnetic relay configured as described above is as follows. When the coil block 12 that is not energized to the coil 20 is not energized, the movable block 13 is rotated counterclockwise in FIG. 6 by the biasing force of the spring 38, and the movable contact 24a contacts the first fixed contact 15a. ing. As described above, since the positional relationship between the movable contact piece 24, that is, the movable contact 24a, and the suction surface 25a of the movable iron piece 25 is formed with high accuracy, the distance between the contact between the movable contact 24a and the first fixed contact 15a. Variation does not occur.

そして、コイル２０に通電してコイルブロック１２を励磁すると、鉄心１９の端面に可動ブロック１３の可動鉄片２５が吸引され、可動部材２２が図６中、時計回り方向に回動し、可動接点２４ａが第２固定接点１６ａに当接する。前記同様、可動接触片２４すなわち可動接点２４ａと、可動鉄片２５の吸着面２５ａとの位置関係が高精度に形成されているため、可動接点２４ａと第２固定接点１６ａとの接触圧にばらつきが発生せず、所望の値とすることができる。   When the coil 20 is energized to energize the coil block 12, the movable iron piece 25 of the movable block 13 is attracted to the end face of the iron core 19, and the movable member 22 rotates clockwise in FIG. 6, and the movable contact 24a. Abuts against the second fixed contact 16a. As described above, since the positional relationship between the movable contact piece 24, that is, the movable contact 24a, and the adsorption surface 25a of the movable iron piece 25 is formed with high accuracy, the contact pressure between the movable contact 24a and the second fixed contact 16a varies. It does not occur and can be set to a desired value.

また、前記可動部材２２の回動に伴い、動作表示部材４０が図６中、左方向に移動し、その軸部４０ｃがケース１４の回動規制片１４ｂに当接して移動を阻止される。このため、動作表示部材４０は、軸部４０ａを中心として図６中、反時計回り方向に回動し、腕部４０ｂの上端部がケース１４の窓部１４ａの下方に到達し、外方から目視可能となる。これにより、可動部材２２の動作が適切に行われているか否かの判断が可能となる。   Further, as the movable member 22 rotates, the operation display member 40 moves to the left in FIG. 6, and its shaft portion 40 c abuts against the rotation restricting piece 14 b of the case 14 to be prevented from moving. For this reason, the motion display member 40 rotates counterclockwise in FIG. 6 about the shaft portion 40a, and the upper end portion of the arm portion 40b reaches below the window portion 14a of the case 14, and from the outside. It becomes visible. Thereby, it is possible to determine whether or not the operation of the movable member 22 is appropriately performed.

なお、前記実施の形態では、２次成形により第１保持部２８と第２保持部２９とを一体化するようにしたが、次のようにして一体化してもよい。   In the above embodiment, the first holding part 28 and the second holding part 29 are integrated by secondary molding. However, they may be integrated as follows.

すなわち、図７に示すように、第１保持部２８に係合突起４３を突設する一方、第２保持部２９及び可動鉄片２５に、前記係合突起４３が係合する係合孔４４を穿設する（第１保持部２８に係合孔、第２保持部２９及び可動鉄片２５に係合突起を形成するようにしてもよい。）。係合突起４３は、先端にかしめ用凹部４３ａを有している。そして、前記実施の形態と同様、第１保持部２８及び第２保持部２９を、互いの当接面２８ａと当接受面２９ａとを面接触させて組み付ける。係合突起４３は、係合孔４４を貫通して反対側の縁部から突出するので、この突出部分を熱かしめし、第１保持部２８と第２保持部２９とを一体化する。係合突部３４の先端にはかしめ用凹部４３ａが形成されているので、熱かしめ時に容易に係合孔４４の縁部に広がり適切な熱かしめ状態となる。   That is, as shown in FIG. 7, the engagement protrusions 43 project from the first holding portion 28, while the engagement holes 44 into which the engagement protrusions 43 engage the second holding portion 29 and the movable iron piece 25. (The engagement hole may be formed in the first holding portion 28, and the engagement protrusion may be formed in the second holding portion 29 and the movable iron piece 25). The engagement protrusion 43 has a caulking recess 43a at the tip. Then, as in the above embodiment, the first holding part 28 and the second holding part 29 are assembled by bringing the contact surfaces 28a and the contact receiving surfaces 29a into surface contact with each other. Since the engaging protrusion 43 penetrates the engaging hole 44 and protrudes from the opposite edge portion, the protruding portion is heat caulked to integrate the first holding portion 28 and the second holding portion 29 together. Since the concave portion 43a for caulking is formed at the tip of the engaging protrusion 34, it spreads easily to the edge of the engaging hole 44 during heat caulking and is in an appropriate heat caulking state.

ここでは、第１保持部２８と第２保持部２９とを熱かしめにより一体化するようにしたが、単に係合突起４３の先端をかしめて固定するようにしてもよい。   Here, the first holding part 28 and the second holding part 29 are integrated by heat caulking, but the tip of the engaging protrusion 43 may be simply caulked and fixed.

また、図８に示すように、第１保持部２８及び第２保持部２９にそれぞれ挿通孔４５を穿設する。そして、前記同様、第１保持部２８と第２保持部２９とを、互いの当接面２８ａと当接受面２９ａとを面接触させて組み付ける。その後、前記挿通孔４５にリベット４６を挿通し、その両端部をかしめることにより、第１保持部２８と第２保持部２９とを一体化する。   Further, as shown in FIG. 8, insertion holes 45 are formed in the first holding part 28 and the second holding part 29, respectively. Then, similarly to the above, the first holding part 28 and the second holding part 29 are assembled by bringing the contact surface 28a and the contact receiving surface 29a into surface contact with each other. Thereafter, the first holding part 28 and the second holding part 29 are integrated by inserting the rivet 46 into the insertion hole 45 and caulking both ends thereof.

本発明の一実施形態に係る電磁継電器の分解斜視図である。It is a disassembled perspective view of the electromagnetic relay which concerns on one Embodiment of this invention. 図１の可動ブロックの作成工程を示す斜視図で、（ａ）は１次成形前の状態、（ｂ）は１次成形後の状態、（ｃ）は１次成形前の可動鉄片、（ｄ）は１次成形後の可動鉄片、（ｅ）は完成後の可動ブロックである。It is a perspective view which shows the creation process of the movable block of FIG. 1, (a) is the state before primary molding, (b) is the state after primary molding, (c) is the movable iron piece before primary molding, (d ) Is a movable iron piece after primary molding, and (e) is a movable block after completion. １次成形により第１保持部を形成する状態を示す金型の断面図である。It is sectional drawing of the metal mold | die which shows the state which forms a 1st holding | maintenance part by primary shaping | molding. １次成形により第２保持部を形成する状態を示す金型の断面図である。It is sectional drawing of the metal mold | die which shows the state which forms the 2nd holding | maintenance part by primary shaping | molding. （ａ）は図１の可動ブロックを示す平面図、（ｂ）は（ａ）のＡ―Ａ線断面図である。(A) is a top view which shows the movable block of FIG. 1, (b) is the sectional view on the AA line of (a). 本発明の一実施形態に係る電磁継電器の断面図である。It is sectional drawing of the electromagnetic relay which concerns on one Embodiment of this invention. 第１保持部と第２保持部とを一体化する他の例を示す部分断面図である。It is a fragmentary sectional view showing other examples which integrate the 1st holding part and the 2nd holding part. 第１保持部と第２保持部とを一体化するさらに他の例を示す部分断面図である。It is a fragmentary sectional view showing the other example which unifies the 1st holding part and the 2nd holding part. 従来例に係る電磁継電器の断面図である。It is sectional drawing of the electromagnetic relay which concerns on a prior art example. （ａ）は図９の可動部材の正面図、（ｂ）は（ａ）の側面図である。(A) is a front view of the movable member of FIG. 9, (b) is a side view of (a).

符号の説明Explanation of symbols

１２ コイルブロック
２２ 可動部材
２４ 可動接触片
２５ 可動鉄片
２６ 保持部材
２８ 第１保持部
２９ 第２保持部
４３ 係合突起
４４ 係合孔
４５ 挿通孔
４６ リベット 12 Coil block 22 Movable member 24 Movable contact piece 25 Movable iron piece 26 Holding member 28 First holding part 29 Second holding part 43 Engaging projection 44 Engaging hole 45 Insertion hole 46 Rivet

Claims (6)

可動接触片と可動鉄片とを保持部材に絶縁状態で一体化して可動部材を形成する電磁継電器の製造方法において、
前記可動接触片の一部を基準としてインサート成形することにより、当接面を備えた第１保持部を形成する第１保持部１次成形工程と、
前記可動鉄片の一部を基準としてインサート成形することにより、当接受面を備えた第２保持部を形成する、前記第１保持部１次成形工程とは別に行う第２保持部１次成形工程と、
前記第２保持部１次成形工程により得られた当接受面に、前記第１保持部１次成形工程により得られた当接面を当接させた状態で、第１保持部と第２保持部を一体化して保持部材とすることにより可動部材を形成する可動部材２次成形工程と、により行うことを特徴とする電磁継電器の製造方法。 In the electromagnetic relay manufacturing method of forming the movable member by integrating the movable contact piece and the movable iron piece in an insulating state with the holding member,
By insert-molding with respect to the portion of the movable contact piece, a first holding portion primary molding step of forming a first holding portion having a contact surface,
By insert-molding with respect to the portion of the movable iron piece, contact receiving surface to form a second holding portion having a second holding part linear performed separately from the first holding portion primary molding step Molding process;
The contact receiving surface was obtained, et al by the second holding portion primary molding step, being in contact with abutment surface was obtained, et al by the first holding portion primary molding step, first the first holding portion A method of manufacturing an electromagnetic relay, comprising: a movable member secondary forming step of forming a movable member by integrating the two holding portions into a holding member . 前記第１保持部１次成形工程では、所定間隔で並設した可動接触片と各リード線との接続部分を含めてインサート成形することにより、当接面を備えた第１保持部を形成することを特徴とする請求項１に記載の電磁継電器の製造方法。 In the first holding part primary forming step, the first holding part having the contact surface is formed by insert molding including the connecting portions of the movable contact pieces and the lead wires arranged in parallel at predetermined intervals. The manufacturing method of the electromagnetic relay of Claim 1 characterized by the above-mentioned. 前記第２保持部１次成形工程では、前記第２保持部により前記可動鉄片の前記可動接触片との対向面を被覆し、その一部を当接受面とすることを特徴とする請求項１又は２に記載の電磁継電器の製造方法。   2. The first forming step of the second holding portion covers a surface of the movable iron piece facing the movable contact piece by the second holding portion, and a part thereof is used as a contact receiving surface. Or the manufacturing method of the electromagnetic relay of 2. 前記可動鉄片２次成形工程では、前記第１保持部の当接面とは反対側の面に形成した凹所に樹脂を充填し、該樹脂を、凹所に開口する樹脂流通孔を介して前記第２保持部の当接受面とは反対側の面へと流動させて固化させることを特徴とする請求項１から３のいずれか１項に記載の電磁継電器の製造方法。   In the movable iron piece secondary molding step, a resin is filled in a recess formed on a surface opposite to the contact surface of the first holding portion, and the resin passes through a resin flow hole that opens in the recess. 4. The method of manufacturing an electromagnetic relay according to claim 1, wherein the second holding unit is caused to flow and solidify to a surface opposite to the contact receiving surface of the second holding unit. 5. 前記可動部材２次成形工程の前に、前記第１保持部と前記第２保持部とを、いずれか一方に形成した仮止め用の突部を残る他方に形成した仮止め用の係合孔に係合して２次成形前に仮止めする仮止め工程を行うことを特徴とする請求項４に記載の電磁継電器の製造方法。   Prior to the movable member secondary forming step, the first holding portion and the second holding portion are temporarily fixed engaging holes formed on the other one of the temporary fixing protrusions formed on either one of the first holding portion and the second holding portion. The method for manufacturing an electromagnetic relay according to claim 4, wherein a temporary fixing step is performed in which the temporary engagement is performed before the secondary molding. 前記仮止め工程では、前記当接面の近傍に形成した貫通孔を、仮止め用の突部を係合する係合孔とすることを特徴とする請求項５に記載の電磁継電器の製造方法。   6. The method of manufacturing an electromagnetic relay according to claim 5, wherein in the temporary fixing step, a through hole formed in the vicinity of the contact surface is used as an engagement hole for engaging a temporary fixing protrusion. .
JP2005339252A 2005-11-24 2005-11-24 Manufacturing method of electromagnetic relay Expired - Lifetime JP4305442B2 (en)

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