JP3088854B2 - Coil device - Google Patents
Coil deviceInfo
- Publication number
- JP3088854B2 JP3088854B2 JP04205750A JP20575092A JP3088854B2 JP 3088854 B2 JP3088854 B2 JP 3088854B2 JP 04205750 A JP04205750 A JP 04205750A JP 20575092 A JP20575092 A JP 20575092A JP 3088854 B2 JP3088854 B2 JP 3088854B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- synthetic resin
- terminal
- flow path
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electromagnets (AREA)
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、コイル枠に巻回したコ
イルが合成樹脂よりなる成形体で覆われるようコイル枠
と共に一体成形されてなるコイル装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil device integrally formed with a coil frame so that a coil wound around the coil frame is covered with a molded body made of synthetic resin.
【０００２】[0002]
【従来の技術】従来、この種のコイル装置として図８及
び図９に示す構成のものが存在する。このものは、電磁
リレーに使用されるものであって、図８に示すように、
コイル枠A は、巻胴部A1にコイルB が巻回され、その巻
回された部分から引き出されたコイル端末部B1,B1 は、
巻胴部A1の両端部の鍔部A2,A2 にコイルB の軸と直交す
る方向に突出させたコイル端子B2,B2 に巻き付け後はん
だ接続されている。そして、図９に示すように、コイル
B は、合成樹脂よりなる成形体C で覆われるようコイル
B の外側中央に合成樹脂を注入するゲート口C1を設けて
射出成形によりコイル枠A と共に一体成形される。2. Description of the Related Art Conventionally, there is a coil device of this type having a structure shown in FIGS. This is used for an electromagnetic relay, and as shown in FIG.
Coil frame A, the coil B is wound on the winding body A 1, the wound coil terminal portion drawn from the portion B 1, B 1 is
After winding around the coil terminals B 2 , B 2 projecting in the direction perpendicular to the axis of the coil B to the flanges A 2 , A 2 at both ends of the winding drum A 1 , they are connected by soldering. Then, as shown in FIG.
B is a coil so that it is covered with a molded product C made of synthetic resin.
It is integrally molded with the coil frame A by injection molding provided with a gate opening C 1 for injecting an outer center synthetic resin B.
【０００３】[0003]
【発明が解決しようとする課題】上記した従来のコイル
装置にあっては、コイルB は、合成樹脂よりなる成形体
C で覆われるよう射出成形によりコイル枠A と共に一体
成形されているから、コイルB に傷を付けて断線させる
ことがなく、また電磁リレーに使用した場合、接点等の
充電部に対してコイルB の絶縁性を良くすることができ
る。In the above-mentioned conventional coil device, the coil B is made of a molded article made of synthetic resin.
Since it is integrally molded with the coil frame A by injection molding so as to be covered with C, the coil B is not damaged and is not disconnected. Can be improved in insulation.
【０００４】しかしながら、一体成形される際、コイル
B の外側中央に設けたゲート口C1から注入された合成樹
脂は、図９に矢示するように、コイルB の外側を軸に沿
って流れて行くことによって、その合成樹脂の射出圧
が、コイル枠A の鍔部A2,A2 にコイルB の軸と直交する
方向に突出させたコイル端子B2,B2 に巻き付けるよう引
き出されたコイルの端末部B1,B1 に直接加わるので、そ
の射出圧によりコイルの端末部B1,B1 詳しくは引き出さ
れた部分が断線する恐れがある。However, when integrally formed, the coil
Synthetic resin injected from a gate opening C 1 provided outside the center of the B, as indicated by arrows in FIG. 9, by flows along the outside of the coil B to the axis, the injection pressure of the synthetic resin The coil terminals A 2 , A 2 of the coil frame A are directly applied to the terminal portions B 1 , B 1 of the coil drawn out so as to be wound around the coil terminals B 2 , B 2 protruding in a direction perpendicular to the axis of the coil B. Therefore, the terminal pressures B 1 , B 1 of the coil, in particular, the drawn-out portion may be disconnected by the injection pressure.
【０００５】本発明は、上記事由に鑑みてなしたもの
で、その目的とするところは、コイルの端末部を断線さ
せずに、一体成形によりコイルを成形体で覆うことがで
きるコイル装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a coil device capable of covering a coil with a molded body by integral molding without breaking a terminal portion of the coil. Is to do.
【０００６】[0006]
【課題を解決するための手段】上記した課題を解決する
ために、本発明のコイル装置は、コイル枠に巻回したコ
イルが合成樹脂よりなる成形体で覆われるようコイル枠
と共に一体成形されるコイル装置において、コイルの端
末部が、一体成形される際に合成樹脂の射出圧が直接加
わる流路から外れて配設されてなる構成にしてある。In order to solve the above problems, a coil device according to the present invention is integrally formed with a coil frame so that a coil wound around the coil frame is covered with a molded body made of synthetic resin. In the coil device, the terminal portion of the coil is arranged so as to be out of the flow path to which the injection pressure of the synthetic resin is directly applied when integrally molded.
【０００７】また、コイルの端末部が、前記流路に対し
直交する方向にコイル枠に設けた凹部に配設されてなる
構成にしてもよい。[0007] The terminal of the coil may be arranged in a recess provided in the coil frame in a direction perpendicular to the flow path.
【０００８】また、コイルの端末部が、一体成形される
際に前記流路の途中に位置させた一体成形用の金型の後
側に配設されてなる構成にしてもよい。[0008] The terminal of the coil may be arranged on the rear side of the mold for integral molding which is located in the middle of the flow path when integrally molded.
【０００９】[0009]
【作用】本発明のコイル装置によれば、コイルの端末部
は一体成形される際に合成樹脂の射出圧が直接加わる流
路から外れて配設されているから、合成樹脂により覆わ
れるときにコイルの端末部に加わる射出圧は他の箇所に
迂回する等によりすでに弱くなっているので、そのコイ
ルの端末部を射出圧で断線させずに一体成形することが
できる。According to the coil device of the present invention, the terminal portion of the coil is disposed out of the flow path to which the injection pressure of the synthetic resin is directly applied when the coil is integrally molded. Since the injection pressure applied to the terminal portion of the coil is already weakened by diverting to another location, the coil can be integrally formed without disconnecting the terminal portion by the injection pressure.
【００１０】[0010]
【実施例】本発明の第一実施例を図１乃至図６に基づい
て以下に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
【００１１】この例におけるコイル装置10は、電磁リレ
ーに使用されるものであって、コイル枠1 は、巻胴部1b
の両端に設けた鍔部1a,1a からコ字状の鉄芯2 の両端部
2a,2a を露出させて、合成樹脂により一体成形して形成
され、コイル3 がコイル枠1の巻胴部1bに巻回されてい
る。The coil device 10 in this example is used for an electromagnetic relay, and the coil frame 1 has a winding drum 1b.
Ends of the U-shaped iron core 2 from the flanges 1a, 1a provided at both ends of the
The coil 3 is wound around a winding drum portion 1b of the coil frame 1 by exposing the portions 2a and 2a and integrally forming the same with a synthetic resin.
【００１２】コイル枠1 の両鍔部1a,1a の側部両方に
は、コイル3 の軸と直交する方向に凹ませた凹部1cがそ
れぞれ設けられ、巻付け部3b及び接続部3cとで略Ｌ字状
に形成された４個のコイル端子3aが、各巻付け部3bを上
記凹部1cからそれぞれ突出して一体成形されている。そ
して、図１(a) に示すように、コイル3 の端末部3dは、
鍔部1aの側部の一方に設けた２個のコイル端子3a,3a の
各巻付け部3bに巻き付けられ、はんだ接続された後、図
１(b) に示すように、その各巻付け部3bが根元で折り曲
げられることにより、巻胴部1bに巻回された部分から引
き出された部分を含めて凹部1cの中に収容される。な
お、鍔部1aの側部の他方に設けた別の２個のコイル端子
3a,3a は、巻胴部1bに２種類のコイルが巻回されている
場合に使用される。On both sides of both flanges 1a, 1a of the coil frame 1, there are provided recesses 1c which are recessed in a direction orthogonal to the axis of the coil 3, and are substantially formed by the winding portion 3b and the connection portion 3c. Four L-shaped coil terminals 3a are formed integrally by projecting the respective winding portions 3b from the recesses 1c. Then, as shown in FIG. 1 (a), the terminal 3d of the coil 3
After being wound around each of the winding portions 3b of the two coil terminals 3a, 3a provided on one of the side portions of the flange portion 1a and being connected by soldering, as shown in FIG. 1 (b), each of the winding portions 3b is By being bent at the root, it is accommodated in the concave portion 1c including the portion pulled out from the portion wound around the winding drum portion 1b. In addition, another two coil terminals provided on the other of the side portions of the flange portion 1a
Reference numerals 3a and 3a are used when two types of coils are wound around the winding drum 1b.
【００１３】そして、鉄芯2 の両端部2a,2a 間に直方体
状の永久磁石4 が取着されて、図５(a) に示す電磁石ブ
ロック11ができる。Then, a rectangular parallelepiped permanent magnet 4 is attached between both ends 2a, 2a of the iron core 2 to form an electromagnet block 11 shown in FIG. 5 (a).
【００１４】上記電磁石ブロック11は、図５(b) に示す
ようにコイル枠1 及び端子ブロック5 と共に、コイル3
が、図５(c) に示すように合成樹脂よりなる成形体6 で
覆われるよう、射出成形により一体成形される。このと
き、図４に示すように、合成樹脂を注入するゲート口6a
がコイル3 の外側両中央に設けられ、そのゲート口6aか
らの合成樹脂の射出圧が直接加わる流路6bが、矢示する
ようにコイル3 の外側を軸に沿って形成される。また、
上記端子ブロック5 は、基端に固定接点51a を設けた固
定接点端子51と、基端に後述する接点ばね8 のヒンジば
ね片8aが固着される固着片52a が形成された共通接点端
子52と、コイル3 に通電を行うコイル通電端子53とから
なり、電磁石ブロック11の両側に、２本の固定接点端子
51、１本の共通接点端子52及び２本のコイル通電端子53
がそれぞれ植設される。このとき、固定接点51a 及び共
通接点端子52の固着片52a は、成形体6 から露出され、
またコイル通電端子53はコイル端子3aの接続部3cに溶接
して接続される。そして、一体成形後に、それぞれの端
子は成形体6 から露出している部分を成形体6 の側面に
沿って折り曲げられる。As shown in FIG. 5B, the electromagnet block 11 includes the coil frame 1 and the terminal block 5 together with the coil 3.
Is integrally formed by injection molding so as to be covered with a molded body 6 made of a synthetic resin as shown in FIG. 5 (c). At this time, as shown in FIG.
Are provided at the center of both sides of the outside of the coil 3, and a flow path 6b to which the injection pressure of the synthetic resin from the gate port 6a is directly applied is formed along the axis outside the coil 3 as shown by an arrow. Also,
The terminal block 5 includes a fixed contact terminal 51 having a fixed contact 51a provided at a base end, and a common contact terminal 52 having a fixed piece 52a formed at a base end with a hinge spring piece 8a of a contact spring 8 to be described later. And a coil energization terminal 53 for energizing the coil 3. Two fixed contact terminals are provided on both sides of the electromagnet block 11.
51, one common contact terminal 52 and two coil conducting terminals 53
Are planted respectively. At this time, the fixed contact 51a and the fixing piece 52a of the common contact terminal 52 are exposed from the molded body 6,
The coil energization terminal 53 is connected to the connection portion 3c of the coil terminal 3a by welding. Then, after integral molding, each terminal is bent at a portion exposed from the molded body 6 along the side surface of the molded body 6.
【００１５】上記のようにして形成された図５(c) の状
態のものが、コイル装置10である。そして、上記コイル
装置10には、図６に示すように、接極子ブロック12が配
設される。この接極子ブロック12は、平板状の接極子7
の両側に接点ばね8 がそれぞれ合成樹脂を介して一体成
形により設けられている。接点ばね8 の両先端には可動
接点8bがそれぞれ固着され、中央部の一側部からヒンジ
ばね片8aが突出されている。そして、接極子7 が、その
下面の中央に形成された突条を支点として、永久磁石4
上に揺動自在に載置され、両端部が鉄芯2 の両端部2a,2
a に吸引釈放されることにより、可動接点8bが固定接点
51a に接離するとともに、ヒンジばね片8aが前記共通接
点端子52の固着片52a に固着され、これにより接点ばね
8 が共通接点端子52と電気的に接続される。このとき、
上述したように、コイル装置10はコイル3 を成形体6 で
覆っているので、接点ばね8 等の充電部に対してコイル
3の絶縁性は十分に確保され、また接極子ブロック12を
配設するときにコイル3 に傷を付けて断線させることも
ない。そして、カバー9 が被着されると電磁リレーがで
きることになる。FIG. 5C shows the state of the coil device 10 formed as described above. The armature block 12 is provided in the coil device 10 as shown in FIG. The armature block 12 has a plate-shaped armature 7
Contact springs 8 are provided on both sides of the base member 1 by integral molding via a synthetic resin. A movable contact 8b is fixed to each of both ends of the contact spring 8, and a hinge spring piece 8a protrudes from one side of the central portion. The armature 7 is fixed to the permanent magnet 4 with the ridge formed at the center of the lower surface as a fulcrum.
It is placed on the upper side so that it can swing freely, and both ends are both ends 2a, 2 of the iron core 2.
a, the movable contact 8b becomes a fixed contact
51a, the hinge spring piece 8a is fixed to the fixing piece 52a of the common contact terminal 52.
8 is electrically connected to the common contact terminal 52. At this time,
As described above, since the coil device 10 covers the coil 3 with the molded body 6, the coil device 10
The insulation of 3 is sufficiently ensured, and the coil 3 is not damaged and disconnected when the armature block 12 is provided. When the cover 9 is attached, an electromagnetic relay is completed.
【００１６】次に、第２実施例を図７に基づいて以下に
説明する。このものは、コイル端子3aの巻付け部3bにコ
イル3 の端末部3dを巻き付けしてはんだ接続した後、第
１実施例のように根元で曲げずに、まっすぐのままにな
っており、よって第１実施例においてコイル枠1 に設け
た凹部1cも形成されていない。そして、コイル端子3aの
巻付け部3bに巻き付けたコイルの端末部3dは、コイル3
が合成樹脂よりなる成形体6 で覆われるよう射出成形に
より一体成形される際、合成樹脂の射出圧が直接加わる
流路6bの途中に位置させた一体成形用の金型の後側に配
設されている。つまり、コイルの端末部3dに対して流路
6bの上流側に斜線で示す一体成形用の金型13の遮蔽壁13
a が配設されている。勿論、一体成形後には、成形体6
がこの一体成形用の金型13から外されると、遮蔽壁13a
の部分は空間として残ることになる。Next, a second embodiment will be described below with reference to FIG. After winding the terminal portion 3d of the coil 3 around the winding portion 3b of the coil terminal 3a and soldering the same, it is not bent at the root as in the first embodiment, but remains straight. In the first embodiment, the concave portion 1c provided in the coil frame 1 is not formed. The terminal 3d of the coil wound around the winding portion 3b of the coil terminal 3a is
When molded integrally by injection molding so as to be covered with a molded body 6 made of synthetic resin, it is disposed on the rear side of the mold for integral molding located in the middle of the flow path 6b to which the injection pressure of synthetic resin is directly applied. Have been. That is, the flow path with respect to the coil end portion 3d
The shielding wall 13 of the mold 13 for integral molding indicated by oblique lines on the upstream side of 6b.
a is provided. Of course, after integral molding,
Is removed from the integral molding die 13, the shielding wall 13a
Will remain as space.
【００１７】かかるコイル装置10にあっては、コイルの
端末部3dは、コイル3 が合成樹脂よりなる成形体6 で覆
われるよう射出成形により一体成形される際、第１実施
例の場合には、合成樹脂の射出圧が直接加わる流路6bに
対し直交する方向にコイル枠1 に設けた凹部1cに収容さ
れ、また第２実施例の場合には、前記流路6bの途中に位
置させた一体成形用金型13の遮蔽壁13a の後側に配設さ
れており、すなわち、第１及び第２実施例のいずれの場
合においても、コイルの端末部3dは、合成樹脂の射出圧
が直接加わる流路6bから外れて配設されており、従っ
て、合成樹脂により覆われるときにコイルの端末部3dに
加わる射出圧は他の箇所に迂回する等によりすでに弱く
なっているので、コイルの端末部3d、詳しくは巻胴部1b
に巻回したコイル3 から引き出された部分を射出圧で断
線させずに一体成形することができる。ひいては、コイ
ルの端末部3dが断線しないので、成形時の射出圧を大き
くでき、成形体6 の薄肉化さらには電磁リレーの小型化
を図ることもできる。In the coil device 10, when the coil 3 is integrally molded by injection molding so that the coil 3 is covered with the molded body 6 made of synthetic resin, in the case of the first embodiment, It is accommodated in a recess 1c provided in the coil frame 1 in a direction orthogonal to the flow path 6b to which the injection pressure of the synthetic resin is directly applied, and in the case of the second embodiment, it is located in the middle of the flow path 6b. It is disposed behind the shielding wall 13a of the integral molding die 13, that is, in both of the first and second embodiments, the terminal 3d of the coil is directly exposed to the injection pressure of the synthetic resin. Since the injection pressure applied to the terminal portion 3d of the coil when covered with the synthetic resin is already weakened by diverting to other places, the terminal of the coil is disposed outside the flow path 6b to be applied. Part 3d, specifically the winding drum part 1b
The portion drawn out of the coil 3 wound around the coil can be integrally formed without disconnection by the injection pressure. As a result, the terminal 3d of the coil is not disconnected, so that the injection pressure during molding can be increased, the thickness of the molded body 6 can be reduced, and the size of the electromagnetic relay can be reduced.
【００１８】なお、本実施例では、コイル装置が電磁リ
レーに使用される場合を示したが、これに限ることな
く、モータ等のコイルを用いているものであれば、使用
できるのは勿論である。In this embodiment, the case where the coil device is used for an electromagnetic relay has been described. However, the present invention is not limited to this. Of course, any device using a coil such as a motor can be used. is there.
【００１９】[0019]
【発明の効果】本発明のコイル装置は、コイルの端末部
は一体成形される際に合成樹脂の射出圧が直接加わる流
路から外れて配設されているから、合成樹脂により覆わ
れるときにコイルの端末部に加わる射出圧は他の箇所に
迂回する等によりすでに弱くなっているので、そのコイ
ルの端末部を射出圧で断線させずに一体成形することが
できる。According to the coil device of the present invention, the terminal portion of the coil is disposed out of the flow path to which the injection pressure of the synthetic resin is directly applied when the coil is integrally molded. Since the injection pressure applied to the terminal portion of the coil is already weakened by diverting to another location, the coil can be integrally formed without disconnecting the terminal portion by the injection pressure.
【図１】本発明の第１実施例の要部を示す部分破断平面
図である。FIG. 1 is a partially broken plan view showing a main part of a first embodiment of the present invention.
【図２】同上の要部を示す部分破断斜視図である。FIG. 2 is a partially broken perspective view showing a main part of the above.
【図３】同上のコイルを合成樹脂で一体成形する前の状
態を示す平面図である。FIG. 3 is a plan view showing a state before the coil is integrally formed of a synthetic resin.
【図４】同上のコイルを合成樹脂で一体成形したときの
状態を示す平面図である。FIG. 4 is a plan view showing a state where the above-mentioned coil is integrally formed of a synthetic resin.
【図５】コイル装置の製造工程を示す分解斜視図であ
る。FIG. 5 is an exploded perspective view showing a manufacturing process of the coil device.
【図６】同上の電磁リレーの分解斜視図である。FIG. 6 is an exploded perspective view of the electromagnetic relay.
【図７】本発明の第２実施例の要部を示す部分破断平面
図である。FIG. 7 is a partially broken plan view showing a main part of a second embodiment of the present invention.
【図８】従来例のコイルを合成樹脂で一体成形する前の
状態を示す平面図である。FIG. 8 is a plan view showing a state before a conventional coil is integrally molded with a synthetic resin.
【図９】同上のコイルを合成樹脂で一体成形したときの
状態を示す平面図である。FIG. 9 is a plan view showing a state where the above-mentioned coil is integrally formed of a synthetic resin.
1 コイル枠 1c 凹部 3 コイル 3d コイル端末部 6 成形体 6b 流路 10 コイル装置 13 一体成形用の金型 1 Coil frame 1c recess 3 Coil 3d Coil end 6 Mold 6b Flow path 10 Coil device 13 Mold for integral molding
───────────────────────────────────────────────────── フロントページの続き (72)発明者 新敷 一彦 大阪府門真市大字門真1048番地松下電工 株式会社内 (72)発明者 勝谷 清秀 大阪府門真市大字門真1048番地松下電工 株式会社内 (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 7/06 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiko Shinki 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. ) Surveyed field (Int.Cl. 7 , DB name) H01F 7/06
Claims (3)
りなる成形体で覆われるようコイル枠と共に一体成形さ
れるコイル装置において、 コイルの端末部が、一体成形される際に合成樹脂の射出
圧が直接加わる流路から外れて配設されてなることを特
徴とするコイル装置。In a coil device integrally molded with a coil frame so that a coil wound around the coil frame is covered with a molded body made of synthetic resin, injection of synthetic resin is performed when a terminal portion of the coil is integrally molded. A coil device, which is disposed outside a flow path to which pressure is directly applied.
する方向にコイル枠に設けた凹部に配設されてなること
を特徴とする請求項１記載のコイル装置。2. The coil device according to claim 1, wherein a terminal portion of the coil is disposed in a concave portion provided in the coil frame in a direction perpendicular to the flow path.
前記流路の途中に位置させた一体成形用の金型の後側に
配設されてなることを特徴とする請求項１記載のコイル
装置。3. The coil according to claim 1, wherein a terminal portion of the coil is disposed on a rear side of a mold for integral molding, which is located in the middle of the flow path when integrally molded. Coil device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04205750A JP3088854B2 (en) | 1992-07-31 | 1992-07-31 | Coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04205750A JP3088854B2 (en) | 1992-07-31 | 1992-07-31 | Coil device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0653029A JPH0653029A (en) | 1994-02-25 |
| JP3088854B2 true JP3088854B2 (en) | 2000-09-18 |
Family
ID=16512041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04205750A Expired - Fee Related JP3088854B2 (en) | 1992-07-31 | 1992-07-31 | Coil device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3088854B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005101396A (en) * | 2003-09-26 | 2005-04-14 | Imasen Electric Ind Co Ltd | Mold coil |
-
1992
- 1992-07-31 JP JP04205750A patent/JP3088854B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0653029A (en) | 1994-02-25 |
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