JP5257242B2 - Coil device and manufacturing method thereof - Google Patents

Coil device and manufacturing method thereof Download PDF

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JP5257242B2
JP5257242B2 JP2009127833A JP2009127833A JP5257242B2 JP 5257242 B2 JP5257242 B2 JP 5257242B2 JP 2009127833 A JP2009127833 A JP 2009127833A JP 2009127833 A JP2009127833 A JP 2009127833A JP 5257242 B2 JP5257242 B2 JP 5257242B2
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bobbin
winding
terminal fitting
embedded
coil device
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JP2010278134A (en
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貴広 内山
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Sumitomo Wiring Systems Ltd
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Description

本発明は、コイル装置及びその製造方法に関する。   The present invention relates to a coil device and a manufacturing method thereof.

従来、ボビンに巻き線を巻回してなるコイル本体から給電用電線が導出されたコイル装置の一例として、特許文献１に記載されたものが知られている。このものは、巻き線の引き出し端に接続された端子金具をボビンに固着した状態で、ボビンの周りに外装体を二次成形し、同外装体に、上記の端子金具を収容したコネクタ部を一体に形成した構造であって、このコネクタ部に対して、給電用電線の端末に設けられた外部コネクタが嵌合されるようになっている。しかしながらこのコイル装置は、コネクタ部を備える外装体を二次成形するのであるから、コスト高となる嫌いがあった。   Conventionally, what was described in patent document 1 is known as an example of the coil apparatus from which the electric wire for electric power feeding was derived | led-out from the coil main body formed by winding a winding around a bobbin. In this case, with the terminal fitting connected to the lead-out end of the winding fixed to the bobbin, the exterior body is secondarily formed around the bobbin, and the connector portion containing the terminal fitting is placed on the exterior body. An integrally formed structure is configured such that an external connector provided at the end of the power supply wire is fitted to the connector portion. However, since this coil apparatus secondary-molds the exterior body provided with a connector part, there existed dislikes that cost became high.

特開２００２−２７０４２０号公報JP 2002-270420 A

そこで、端子金具を一部のかしめ部を露出させた状態で収容したコネクタ部を、ボビンに対して予め一体成形し、ボビンに巻き線を巻回したのちその引き出し端を、上記の露出したかしめ部にかしめて接続した構造のものが提案された。しかしながらこのものは、コネクタ部に収容する端子金具が別途必要であること、コネクタ部に給電側の外部コネクタを嵌合する作業が必要であることは解消されず、コスト面では不具合が未だ残り、さらなる改良が切望されていた。
本発明は上記のような事情に基づいて完成されたものであって、その目的は、さらなるコスト低減を実現するところにある。 Therefore, the connector part in which the terminal fitting is accommodated with a part of the caulking part exposed is formed integrally with the bobbin in advance, and the winding end is wound around the bobbin, and the lead-out end of the connector part is exposed as described above. A structure with caulking to the part was proposed. However, this does not eliminate the need for a separate terminal fitting to be accommodated in the connector part and the need to fit an external connector on the power feeding side to the connector part, and there remains a problem in terms of cost, Further improvements were eagerly desired.
The present invention has been completed based on the above circumstances, and an object thereof is to realize further cost reduction.

本発明は、ボビンに巻き線を巻回してなるコイル本体から給電用電線が導出されたコイル装置の製造方法であって、前記給電用電線の一端に端子金具をかしめ圧着し、前記端子金具をインサートとし同端子金具のかしめ圧着した箇所を埋設する一方、同端子金具に設けられた接続部を露出させた形態で前記ボビンをインサート成形により形成し、このボビンに巻き線を巻回して前記コイル本体を形成したのち、前記巻き線の端部を前記端子金具の前記接続部に接続するところに特徴を有する。 The present invention is a method of manufacturing a coil device in which a power supply wire is led out from a coil body formed by winding a bobbin around a bobbin, and crimping and crimping a terminal fitting to one end of the power supply wire, While embedding the crimped and crimped portion of the terminal fitting as an insert, the bobbin is formed by insert molding in a form in which the connection portion provided in the terminal fitting is exposed, and the coil is wound around the bobbin to wind the coil After the main body is formed, the end of the winding is connected to the connection portion of the terminal fitting.

また、本発明のコイル装置は、巻き線が巻回されるボビンには、給電用電線の端末を予めかしめ圧着した端子金具を埋設してなる埋設部がインサート成形により設けられ、前記埋設部は、前記給電用電線の端末のうち前記端子金具によりかしめ圧着された箇所が埋設される一方、前記端子金具の巻き線との接続部が露出しており、前記ボビンに巻回された前記巻き線の端部が前記端子金具の前記接続部に接続されているところに特徴を有する。
The coil device of the present invention, the bobbin winding is wound, embedded portion formed by setting embedded terminal fittings in advance crimping crimp terminals of the feeding cable is provided by insert molding, the embedded portion The portion of the terminal of the power supply wire that is crimped and crimped by the terminal fitting is embedded, while the connection portion with the winding of the terminal fitting is exposed, and the winding wound around the bobbin It is characterized in that the end of the wire is connected to the connection part of the terminal fitting.

上記構成によれば、給電用電線の一端に設けられた端子金具をボビンの一部に予め埋設し、ボビンに巻き線を巻回したのち、その端部を端子金具の露出された接続部に接続するのであるから、ボビンにコネクタ部を設けたものと比較すると、コネクタ部に収容される巻き線側の端子金具が不要にできて、部品点数の削減が図れ、またコネクタ同士の嵌合作業も不要となって作業工数も減少でき、もって製造コストの低減を図ることができる。   According to the above configuration, the terminal fitting provided at one end of the power supply wire is embedded in a part of the bobbin in advance, and after winding the winding around the bobbin, the end is connected to the exposed connection part of the terminal fitting. Because it is connected, compared to a bobbin with a connector part, the winding side terminal fittings housed in the connector part can be eliminated, the number of parts can be reduced, and the connectors can be fitted together. Therefore, the number of work steps can be reduced, and the manufacturing cost can be reduced.

また、以下のような構成としてもよい。
（１）前記ボビンが、環形の本体の両側縁に一対のフランジを対向して設けた形状であって、前記埋設部は、一方の前記フランジの外面の外周部から前記ボビンの軸線方向に沿って突出したのち、前記ボビンの径方向の外方に屈曲して設けられ、その屈曲部の端面から前記給電用電線が引き出されているとともに、前記突出部の側方において、前記端子金具の前記接続部が露出されている。
ボビンにコネクタ部を設けたものでは、コネクタ部が大型になりやすいため、その向き等によっては、ボビンに巻き線を巻くに当たり、巻き線繰り出し用のノズルが斜め姿勢で設けられている等の特殊な巻き線機が必要となって、設備費が高く付く可能性がある。
その点本発明では、給電用電線側の端子金具を埋設した埋設部は比較的小型にでき、しかもボビンの外周面から外れた位置に形成されているのであるから、巻き線をボビンに巻回する作業を、普及型の巻き線機を用いて行うことができ、設備費が抑えられてさらなるコスト低減を図ることができる。 The following configuration may also be used.
(1) The bobbin has a shape in which a pair of flanges are provided opposite to both side edges of the ring-shaped main body, and the embedded portion extends along the axial direction of the bobbin from the outer peripheral portion of the outer surface of one of the flanges. And is bent outward in the radial direction of the bobbin, and the power supply wire is drawn out from an end surface of the bent portion, and on the side of the protruding portion, the terminal metal The connection is exposed.
When the bobbin is provided with a connector part, the connector part tends to be large, so depending on the orientation, etc., when winding the winding around the bobbin, a special winding-out nozzle is provided in an oblique position. A large winding machine is required, which can be expensive.
In that respect, in the present invention, the embedded portion in which the terminal fitting on the power supply electric wire side is embedded can be made relatively small and is formed at a position away from the outer peripheral surface of the bobbin, so that the winding is wound around the bobbin. The work to be performed can be performed by using a popular winding machine, and the equipment cost can be suppressed, so that further cost reduction can be achieved.

（２）前記給電用電線における前記埋設部の前記屈曲部の端面から引き出される部分には、ゴムチューブが嵌着されている。埋設部から給電用電線が引き出されている部分において、その界面から浸水することが防止される。   (2) A rubber tube is fitted to a portion of the power feeding wire that is drawn from an end surface of the bent portion of the embedded portion. In the portion where the power supply wire is drawn out from the buried portion, it is prevented that the water is immersed from the interface.

本発明によれば、さらなる製造コストの低減を図ることができる。   According to the present invention, the manufacturing cost can be further reduced.

本発明の一実施形態に係るコイル装置の正面図The front view of the coil apparatus which concerns on one Embodiment of this invention. 同側断面図Cross-sectional side view ボビンの側断面図Bobbin cross section 図３の部分拡大図Partial enlarged view of FIG. 図３のＶ−Ｖ線断面図VV sectional view of FIG. ボビンの平面図Top view of bobbin コイル装置の平面図Top view of coil device

＜実施形態＞
以下、本発明の一実施形態を図１ないし図７に基づいて説明する。本実施形態に係るコイル装置１０は、例えば自動車の駆動系などに用いられるソレノイド装置の一部を構成するものである。
コイル装置１０は、図１及び図２に示すように、ボビン２２に巻き線２１を巻装することでコイル本体２０が形成され、このコイル本体２０から巻き線２１に接続された給電用電線１１が導出された構造となっている。コイル装置１０は、デファレンシャルケース１５（以下、単にケース１５という）内に収容され、一端が巻き線２１の両端にそれぞれ接続された２本の給電用電線１１が、センサ１２に一端側が接続された２本のリード線１３ともども、ケース１５の上面１５Ａの開口１６に嵌着されたグロメット１７を貫通して外部に引き出され、それらの電線１１，１３の他端側にコネクタ１８が設けられて、同コネクタ１８が図示しない給電側機器と接続されるようになっている。 <Embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The coil device 10 according to the present embodiment constitutes a part of a solenoid device used, for example, in an automobile drive system.
As shown in FIGS. 1 and 2, the coil device 10 has a coil main body 20 formed by winding a winding 21 around a bobbin 22, and the power supply wire 11 connected to the winding 21 from the coil main body 20. Is the derived structure. The coil device 10 is housed in a differential case 15 (hereinafter simply referred to as a case 15), and two power supply wires 11 each having one end connected to both ends of the winding 21 are connected to the sensor 12 at one end. Together with the two lead wires 13, the grommet 17 fitted in the opening 16 on the upper surface 15 </ b> A of the case 15 is pulled out to the outside, and a connector 18 is provided on the other end side of the electric wires 11, 13. The connector 18 is connected to a power supply side device (not shown).

コイル装置１０の構造をさらに説明する。巻き線２１は、導電性に優れた金属製（例えば銅製）の細線から構成されている。
ボビン２２は合成樹脂製であって、図３ないし図６に示すように、環形をなす本体２４の両側縁に一対のフランジ２５Ａ，２５Ｂを対向して設けた形状である。一方のフランジ２５Ａにおける内面の所定位置には、図５に示すように、巻き線２１の一端（巻き始め端２１Ａ）を嵌めてボビン２２の底から外周縁に向けて導き出す導出溝２６が、本体２４の周面に対してほぼ接線をなすような向きで形成されている。 The structure of the coil device 10 will be further described. The winding 21 is made of a thin wire made of metal (for example, copper) having excellent conductivity.
The bobbin 22 is made of a synthetic resin and has a shape in which a pair of flanges 25A and 25B are provided opposite to both side edges of the ring-shaped main body 24 as shown in FIGS. As shown in FIG. 5, a lead-out groove 26 that fits one end (winding start end 21 </ b> A) of the winding 21 and leads out from the bottom of the bobbin 22 toward the outer peripheral edge is provided at a predetermined position on the inner surface of one flange 25 </ b> A. It is formed in an orientation that is substantially tangent to the circumferential surface of 24.

さて、ボビン２２における上記した導出溝２６が形成された側のフランジ２５Ａの外面、詳細には、同外面における導出溝２６の底側端部から径方向に延長させた位置における外周縁に、上記した給電用電線１１の他端に接続された端子金具４０を埋設した埋設部３０が、一体的に形成されている。   Now, on the outer surface of the flange 25A on the side where the above-described lead-out groove 26 is formed in the bobbin 22, more specifically, on the outer peripheral edge at a position extended radially from the bottom end of the lead-out groove 26 on the same outer surface. An embedded portion 30 in which a terminal fitting 40 connected to the other end of the power feeding wire 11 is embedded is formed integrally.

給電用電線１１の一端に接続される端子金具４０は、導電性に優れた金属板をプレス加工して形成されており、図４に示すように、同電線１１の一端にかしめ圧着されるバレル４１の前側に、前方に延出された前方延出部４３の先端に、下方（同図の左側）に直角曲げされた屈曲部４４が形成されてなるＬ型タブ４２が連設された形状である。また、同Ｌ型タブ４２の屈曲部４４の側縁からは、図６に示すように、側方に延出したのちＵ字形に折り返された接続部４５が形成されている。詳しくは後記するように、両端子金具４０は横方向に並んで配されるが、各端子金具４０では、Ｌ型タブ４２の屈曲部４４における互いに背を向けた側の側縁に、上記した接続部４５が形成されている。また、各給電用電線１１の一端側における端子金具４０の後方にはゴムチューブ４７が嵌着されている。   The terminal fitting 40 connected to one end of the power supply wire 11 is formed by pressing a metal plate having excellent conductivity, and a barrel that is crimped and crimped to one end of the wire 11 as shown in FIG. A shape in which an L-shaped tab 42 in which a bent portion 44 bent at a right angle downward (on the left side in the figure) is formed at the front end of a front extending portion 43 that extends forward is provided in front of 41. It is. Further, as shown in FIG. 6, a connecting portion 45 is formed from the side edge of the bent portion 44 of the L-shaped tab 42 so as to extend laterally and then be folded back into a U shape. As will be described in detail later, both the terminal fittings 40 are arranged side by side in the lateral direction. However, in each terminal fitting 40, the above-described side edges of the bent portion 44 of the L-shaped tab 42 face each other. A connecting portion 45 is formed. A rubber tube 47 is fitted behind the terminal fitting 40 on one end side of each power supply wire 11.

上記した埋設部３０は、横方向に並んで配された両端子金具４０をインサートとするインサート成形により、ボビン２２と一体的に形成されている。埋設部３０は、図４に示すように、一方のフランジ２５Ａの外面の所定の外周縁から当該ボビン２２の軸線方向に沿って外方に突出した水平部３１の先端に、上方に向けて直角に立ち上がった垂直部３２を設けてなる、全体としてＬ形の厚板状に形成されている。
そして、両端子金具４０は、ゴムチューブ４７の一部からバレル４１さらにはＬ型タブ４２の前方延出部４３を垂直部３２に、Ｌ型タブ４２の屈曲部４４を水平部３１にそれぞれ埋設された状態となる。 The above-described embedded portion 30 is formed integrally with the bobbin 22 by insert molding using the two terminal fittings 40 arranged side by side as inserts. As shown in FIG. 4, the embedded portion 30 is perpendicular to the tip of the horizontal portion 31 that protrudes outward along the axial direction of the bobbin 22 from a predetermined outer peripheral edge of the outer surface of one flange 25 </ b> A. It is formed in the shape of an L-shaped thick plate as a whole.
In both terminal fittings 40, a part of the rubber tube 47 embeds the barrel 41, the front extension 43 of the L-shaped tab 42 in the vertical portion 32, and the bent portion 44 of the L-shaped tab 42 in the horizontal portion 31, respectively. It will be in the state.

埋設部３０における水平部３１の両側縁の途中位置には、図６に示すように、凹部３４が切り欠き形成されており、両端子金具４０のＬ型タブ４２から突設された接続部４５が、それぞれ対応する凹部３４内に突出し、すなわち外部に露出した状態となっている。水平部３１における凹部３４の手前側の領域からフランジ２５Ａの外周縁に亘り、巻き線２１の端部２１Ａ，２１Ｂを嵌めるガイド溝３６が形成されている。
なお、埋設部３０における垂直部３２の一方の側縁には、取付孔３７が開口された取付板３７が突設されている。 As shown in FIG. 6, a recessed portion 34 is cut out at an intermediate position between both side edges of the horizontal portion 31 in the embedded portion 30, and a connecting portion 45 protruding from the L-shaped tab 42 of both terminal fittings 40. However, they protrude into the corresponding recesses 34, that is, are exposed to the outside. A guide groove 36 for fitting the end portions 21 </ b> A and 21 </ b> B of the winding 21 is formed from the region on the front side of the recess 34 in the horizontal portion 31 to the outer peripheral edge of the flange 25 </ b> A.
An attachment plate 37 having an attachment hole 37 is provided on one side edge of the vertical portion 32 in the embedded portion 30.

コイル装置１０の製造手順の一例を示すと、以下のようである。既述したように、２本の給電用電線１１の一端に端子金具４０をゴムチューブ４７ともども固着し、２本の端子金具４０を所定の向きに並べて成形金型内にセットし、これらの端子金具４０をインサートとするインサート成形により、ボビン２２並びに埋設部３０とが形成される。これにより、両端子金具４０が埋設部３０に埋設され、ただし各端子金具４０の接続部４５は、埋設部３０の水平部３１における両側縁に形成された凹部３４内に突出する。また両給電用電線１１におけるゴムチューブ４７の嵌着部分が、埋設部３０における垂直部３２の上面から引き出された状態になる。   An example of the manufacturing procedure of the coil device 10 is as follows. As described above, the terminal fitting 40 is fixed to one end of the two power supply wires 11 together with the rubber tube 47, and the two terminal fittings 40 are arranged in a predetermined direction and set in a molding die. The bobbin 22 and the embedded portion 30 are formed by insert molding using the metal fitting 40 as an insert. As a result, both terminal fittings 40 are embedded in the embedded portion 30, except that the connection portions 45 of the terminal fittings 40 protrude into the recesses 34 formed at both side edges of the horizontal portion 31 of the embedded portion 30. In addition, the fitting portion of the rubber tube 47 in both the power supply wires 11 is drawn from the upper surface of the vertical portion 32 in the embedded portion 30.

次に、このように形成されたボビン２２に対して巻き線２１が巻装される。例えば、同ボビン２２が巻き線機にセットされ、巻き線２１の巻き始め端２１Ａ側がフランジ２５Ａの内面に設けられた導出溝２６に嵌められて、先端の所定長さが導出溝２６の外縁から引き出された状態とされる。係る状態から例えば、ボビン２２の軸線回りの回転と、軸線方向に沿った往復運動を行いつつ、ノズルから繰り出される巻き線２１が、本体２４の外周に対して底側から順次に複数層に亘って巻回される。   Next, the winding wire 21 is wound around the bobbin 22 formed in this way. For example, the bobbin 22 is set in a winding machine, and the winding start end 21A side of the winding 21 is fitted in the lead-out groove 26 provided on the inner surface of the flange 25A, and the predetermined length of the tip is from the outer edge of the lead-out groove 26. It is assumed that it has been pulled out. From such a state, for example, while the rotation of the bobbin 22 around the axis and the reciprocating motion along the axial direction, the winding wire 21 fed out from the nozzle spans a plurality of layers sequentially from the bottom side to the outer periphery of the main body 24. Is wound.

所定の巻回作業が終了したら、図７に示すように、ボビン２２に巻回された巻き線２１の巻き始め端２１Ａと巻き終わり端２１Ｂとが、埋設部３０が向けられてそれぞれガイド溝３６に嵌められ、各先端が対応する端子金具４０の接続部４５に挿入される。そののち、熱溶着すなわち接続部４５を挟んで加圧しつつ加熱することで、各接続部４５が巻き線２１の巻き始め端２１Ａと巻き終わり端２１Ｂとを挟んだ状態で固着される。これにより、各端子金具４０と、巻き線２１の両端２１Ａ，２１Ｂとが電気的に接続される。
なお、図２，図７に示すように、巻装された巻き線２１の外周に保護材５０を塗布してもよい。 When the predetermined winding operation is completed, as shown in FIG. 7, the winding start end 21 </ b> A and the winding end end 21 </ b> B of the winding 21 wound around the bobbin 22 are directed toward the embedded portion 30, respectively, and the guide grooves 36. Are inserted into the connecting portions 45 of the corresponding terminal fittings 40. Thereafter, heat welding, that is, heating while pressing the connection portion 45, each connection portion 45 is fixed in a state where the winding start end 21A and the winding end end 21B of the winding 21 are sandwiched. Thereby, each terminal metal fitting 40 and both ends 21A and 21B of the winding 21 are electrically connected.
As shown in FIGS. 2 and 7, a protective material 50 may be applied to the outer periphery of the wound winding 21.

このようにコイル本体２０から引き出された２本の給電用電線１１は、センサ１２のリード線１３ともどもグロメット１７に挿通され、各電線１１，１３の他端側にコネクタ１８が装着される。なお、これらの電線１１，１３の回りをコルゲートチューブ１９で保護してもよい。
このようにアッセンブリ化されたコイル装置１０は、グロメット１７が上面１５Ａの開口１６に嵌着された状態で、ケース１５内の所定位置に取り付けられる。 The two power supply wires 11 drawn from the coil body 20 in this manner are inserted into the grommet 17 together with the lead wires 13 of the sensor 12, and a connector 18 is attached to the other end of each of the wires 11 and 13. In addition, you may protect the circumference | surroundings of these electric wires 11 and 13 with the corrugated tube 19. FIG.
The assembled coil device 10 is attached to a predetermined position in the case 15 with the grommet 17 fitted into the opening 16 of the upper surface 15A.

以上のように本実施形態のコイル装置１０は、給電用電線１１の一端に設けられた端子金具４０を、接続部４５を露出させた状態でボビン２２の一部に予め一体形成される埋設部３０に埋設し、ボビン２２に巻き線２１を巻回したのち、その両端２１Ａ，２１Ｂを端子金具４０の露出された接続部４５に接続することで形成される。したがって、ボビン２２にコネクタ部を設けたものと比較すると、コネクタ部に収容される巻き線２１側の端子金具が不要にできて、部品点数の削減が図られる。また、ボビン２２のコネクタ部に対して給電用電線１１の端末に設けたコネクタを嵌合接続する作業も不要となって作業工数も減少できる。もって製造コストの低減を図ることができる。   As described above, in the coil device 10 according to the present embodiment, the terminal fitting 40 provided at one end of the power supply wire 11 is embedded in advance in a part of the bobbin 22 with the connection portion 45 exposed. After the winding 21 is wound around the bobbin 22, the both ends 21 </ b> A and 21 </ b> B are connected to the exposed connection portion 45 of the terminal fitting 40. Therefore, as compared with the case where the connector part is provided on the bobbin 22, the terminal fitting on the winding 21 side accommodated in the connector part can be made unnecessary, and the number of parts can be reduced. Further, the work of fitting and connecting the connector provided at the end of the power supply wire 11 to the connector portion of the bobbin 22 is not required, and the number of work steps can be reduced. Therefore, the manufacturing cost can be reduced.

また、給電用電線１１の一端に設けられた端子金具４０を埋設した埋設部３０を、ボビン２２の一方のフランジ２５Ａにおける外側の側方に張り出すような形態、すなわちボビン２２の外周面から外れた位置に形成しているから、巻き線２１をボビン２２に巻回する作業を、普及型の巻き線機を用いて行うことができ、設備費が抑えられてさらなるコスト低減を図ることができる。
さらに、埋設部３０の垂直部３２の端面から給電用電線１１が引き出されている部分においてゴムチューブ４７が介在されているから、界面から浸水することが防止される。 Further, the embedded portion 30 in which the terminal fitting 40 provided at one end of the power supply wire 11 is embedded protrudes from the outer side of the one flange 25 </ b> A of the bobbin 22, that is, deviates from the outer peripheral surface of the bobbin 22. Therefore, the work of winding the winding 21 around the bobbin 22 can be performed by using a popular type winding machine, and the equipment cost can be suppressed and further cost reduction can be achieved. .
Further, since the rubber tube 47 is interposed in the portion where the power supply wire 11 is drawn out from the end face of the vertical portion 32 of the embedded portion 30, it is possible to prevent water from entering from the interface.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
（１）上記実施形態では、巻き線の端部と端子金具の接続部とを熱溶着により接続した場合を示したが、超音波溶着や高周波溶着など他の接続方法を用いてもよい。また溶着に限らず、例えば単なるかしめによる接続であってもよい。
（２）端子金具に設けた接続部の形状は、上記実施形態に例示したＵ字形に折り返した形状のものに限らず、筒状、圧接刃状等、他の形状であってもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the said embodiment, although the case where the edge part of a winding and the connection part of a terminal metal fitting were connected by heat welding was shown, you may use other connection methods, such as ultrasonic welding and high frequency welding. Further, the connection is not limited to welding, and for example, connection by simple caulking may be used.
(2) The shape of the connecting portion provided in the terminal fitting is not limited to the shape folded back to the U shape illustrated in the above embodiment, and may be other shapes such as a cylindrical shape, a pressure contact blade shape, and the like.

（３）上記実施形態では、給電用電線の導出方向が、コネクタ本体の外周部から放射状に引き出された場合を例示したが、同コネクタ本体の軸線に沿った方向や、あるいは斜め外方に引き出されるようにしてもよい。給電用電線の導出方向に応じて、端子金具の形状や、これを埋設する埋設部の形状も適宜に変更可能である。
（４）さらに、端子金具や埋設部の形状に応じて、接続部の形成位置や、同接続部を露出させる凹部の形成位置も適宜に設定し得る。 (3) In the above embodiment, the case where the lead-out direction of the power supply wire is drawn out radially from the outer peripheral portion of the connector main body has been illustrated, but it is pulled out in the direction along the axis of the connector main body or obliquely outward. You may be made to do. The shape of the terminal fitting and the shape of the embedded portion in which the terminal fitting is embedded can be changed as appropriate in accordance with the direction in which the power supply wire is led out.
(4) Furthermore, according to the shape of the terminal metal fitting or the embedded part, the formation position of the connection part and the formation position of the concave part exposing the connection part can be appropriately set.

１０…コイル装置
１１…給電用電線
２０…コイル本体
２１…巻き線
２１Ａ…（巻き線２１の）巻き始め端
２１Ｂ…（巻き線２１の）巻き終わり端
２２…ボビン
２４…本体
２５Ａ，２５Ｂ…フランジ
３０…埋設部
３１…水平部（突出部）
３２…垂直部（屈曲部）
３４…凹部
４０…端子金具
４２…Ｌ型タブ
４５…接続部
４７…ゴムチューブ DESCRIPTION OF SYMBOLS 10 ... Coil apparatus 11 ... Electric wire for electric power supply 20 ... Coil main body 21 ... Winding 21A ... Winding start end 21B (winding 21) winding end end 22 ... Bobbin 24 ... Main body 25A, 25B ... Flange 30 ... buried part 31 ... horizontal part (protruding part)
32 ... Vertical part (bent part)
34 ... Recess 40 ... Terminal fitting 42 ... L-shaped tab 45 ... Connection 47 ... Rubber tube

Claims (4)

ボビンに巻き線を巻回してなるコイル本体から給電用電線が導出されたコイル装置の製造方法であって、
前記給電用電線の一端に端子金具を予めかしめ圧着し、
前記端子金具をインサートとし同端子金具のかしめ圧着した箇所を埋設する一方、同端子金具に設けられた接続部を露出させた形態で前記ボビンをインサート成形により形成し、
このボビンに巻き線を巻回して前記コイル本体を形成したのち、前記巻き線の端部を前記端子金具の前記接続部に接続することを特徴とするコイル装置の製造方法。 A method of manufacturing a coil device in which a power supply wire is derived from a coil body formed by winding a wire around a bobbin,
A terminal fitting is crimped and crimped in advance to one end of the power supply wire ,
While embedding the crimping crimped portion of the terminal fitting and the terminal fitting and insert the bobbin is formed by insert molding in the form to expose the connection portion provided on the terminal fitting,
A method for manufacturing a coil device, comprising: winding a wire around the bobbin to form the coil body; and connecting an end of the wire to the connecting portion of the terminal fitting. 巻き線が巻回されるボビンには、給電用電線の端末を予めかしめ圧着した端子金具を埋設してなる埋設部がインサート成形により設けられ、
前記埋設部は、前記給電用電線の端末のうち前記端子金具によりかしめ圧着された箇所が埋設される一方、前記端子金具の巻き線との接続部が露出しており、
前記ボビンに巻回された前記巻き線の端部が前記端子金具の前記接続部に接続されていることを特徴とするコイル装置。 The bobbin winding is wound, embedded portion formed by setting embedded terminal fittings in advance crimping crimp terminals of the feeding cable is provided by insert molding,
The embedded portion is embedded in a portion crimped and crimped by the terminal metal fitting among the terminals of the power supply wire, while the connection portion with the winding of the terminal metal fitting is exposed,
The coil device, wherein an end portion of the winding wound around the bobbin is connected to the connection portion of the terminal fitting. 前記ボビンが、環形の本体の両側縁に一対のフランジを対向して設けた形状であって、前記埋設部は、一方の前記フランジの外面の外周部から前記ボビンの軸線方向に沿って突出したのち、前記ボビンの径方向の外方に屈曲して設けられ、その屈曲部の端面から前記給電用電線が引き出されているとともに、前記突出部の側方において、前記端子金具の前記接続部が露出されていることを特徴とする請求項２記載のコイル装置。   The bobbin has a shape in which a pair of flanges are provided opposite to both side edges of an annular main body, and the embedded portion protrudes from the outer peripheral portion of the outer surface of one of the flanges along the axial direction of the bobbin. After that, the bobbin is bent outward in the radial direction, the power feeding wire is drawn out from an end surface of the bent portion, and the connecting portion of the terminal fitting is located on the side of the protruding portion. The coil device according to claim 2, wherein the coil device is exposed. 前記給電用電線における前記埋設部の前記屈曲部の端面から引き出される部分には、ゴムチューブが嵌着されていることを特徴とする請求項３記載のコイル装置。   The coil device according to claim 3, wherein a rubber tube is fitted to a portion of the power supply wire that is drawn from an end surface of the bent portion of the embedded portion.
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