JPH09251913A - Coil bobbin - Google Patents
Coil bobbinInfo
- Publication number
- JPH09251913A JPH09251913A JP8722096A JP8722096A JPH09251913A JP H09251913 A JPH09251913 A JP H09251913A JP 8722096 A JP8722096 A JP 8722096A JP 8722096 A JP8722096 A JP 8722096A JP H09251913 A JPH09251913 A JP H09251913A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- guide groove
- coil bobbin
- wire
- bobbin
- 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.)
- Granted
Links
Landscapes
- Electromagnets (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ソレノイドのコイ
ルボビンに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid coil bobbin.
【０００２】[0002]
【従来の技術】電磁センサや、継電器あるいは電磁弁な
どに用いるソレノイドのボビンは、コイル導線の始端を
ターミナルへ案内し、かつ乱巻きを防止するために、導
線の始端部の位置を規定するための案内溝がフランジに
設けられている。この案内溝は、フランジの軸線方向の
内面に、単純な凹溝を径方向に延設したものが一般的で
ある。2. Description of the Related Art A solenoid bobbin used for an electromagnetic sensor, a relay, an electromagnetic valve, or the like guides the starting end of a coil wire to a terminal and defines the position of the starting end of the wire to prevent irregular winding. Is provided in the flange. The guide groove is generally a simple groove formed in a radial direction on the inner surface of the flange in the axial direction.
【０００３】[0003]
【発明が解決しようとする課題】一方、ボビンの巻軸に
巻回されたコイルの周囲に合成樹脂材をモールド成形し
たものに於いては、樹脂材の成形圧力がコイルに加わっ
て巻線部分が軸方向へ押圧されるが、上記の如き従来の
構成によると、この押圧力により導線の始端部に巻線部
分が押し付けられ、導線に作用する応力が過大になるお
それがあった。On the other hand, in the case where the synthetic resin material is molded around the coil wound around the bobbin winding shaft, the molding pressure of the resin material is applied to the coil to form the winding portion. Is pressed in the axial direction. However, according to the above-described conventional structure, the pressing force pushes the winding portion against the starting end portion of the conductive wire, which may cause excessive stress on the conductive wire.
【０００４】本発明は、このような不都合を解消するべ
く、コイルをインサートモールドすることによるストレ
スが、導線のターミナルへ向けて導出された部分に加わ
り難くなるように改良されたコイルボビンを提供するこ
とを目的とするものである。In order to eliminate such inconvenience, the present invention provides a coil bobbin improved so that stress due to insert molding of a coil is less likely to be applied to a portion of the lead wire which is led out toward the terminal. The purpose is.
【０００５】[0005]
【課題を解決するための手段】このような目的を果たす
ために、本発明に於いては、巻軸とフランジとを有し、
導線を巻回するコイルボビンの構成を、その底面が、外
周側へ行くに従って徐々に深くなると共に導線の巻き方
向について徐々に浅くなるようにされ、かつその軸線方
向から見た形状が巻軸の外周に頂点が接する扇形をなす
案内溝をフランジの内側面に形成し、該案内溝の最も深
い部分に導線の始端部を沿わせるものとした。In order to achieve such an object, the present invention has a winding shaft and a flange,
The structure of the coil bobbin that winds the conducting wire is such that the bottom surface becomes gradually deeper toward the outer peripheral side and gradually becomes shallower in the winding direction of the conducting wire, and the shape viewed from the axial direction is the outer circumference of the winding shaft. A fan-shaped guide groove whose apex is in contact with is formed on the inner side surface of the flange, and the starting end portion of the conducting wire extends along the deepest part of the guide groove.
【０００６】[0006]
【発明の実施の形態】以下に添付の図面を参照して本発
明の構成を詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.
【０００７】図１は、本発明が適用された電磁センサを
示している。この電磁センサ１は、後述する感応素子部
２の周囲を被覆したハウジング部３と、車体に対する取
付ステー部４と、ケーブル引出部５とを合成樹脂材にて
一体成形してなっている。なお、取付ステー部４には、
ボルト締付力を受けるための金属製カラー６がインサー
トされている。FIG. 1 shows an electromagnetic sensor to which the present invention is applied. The electromagnetic sensor 1 is formed by integrally molding a housing part 3 covering the periphery of a sensitive element part 2 described below, a mounting stay part 4 for the vehicle body, and a cable pulling part 5 with a synthetic resin material. In addition, in the mounting stay portion 4,
A metal collar 6 for receiving the bolt tightening force is inserted.
【０００８】感応素子部２は、図２及び図３に示すよう
に、合成樹脂材にて射出成形されたボビン７と、該ボビ
ン７の軸線方向一端面に圧入固定された一対のターミナ
ル部材８のそれぞれに各端を連結された上でボビン７に
巻回された導線からなるコイル９と、ボビン７の中心孔
に装着されたポールピース１０、永久磁石１１、及びヨ
ーク１２と、車両の制御回路にコネクタ（図示せず）を
介して接続されるリード線１３とからなっている。As shown in FIGS. 2 and 3, the sensitive element portion 2 includes a bobbin 7 injection-molded of a synthetic resin material and a pair of terminal members 8 press-fitted and fixed to one axial end surface of the bobbin 7. A coil 9 composed of a conductive wire wound around a bobbin 7 after each end of the bobbin 7 is connected to the pole piece 10, a pole piece 10, a permanent magnet 11 and a yoke 12 mounted in a central hole of the bobbin 7, and a vehicle control The lead wire 13 is connected to the circuit via a connector (not shown).
【０００９】図２に示すように、コイル９の導線１４の
端末は、この端末が絡められたターミナル部材８の導線
保持部１５に電極を当ててかしめながら電流を流すこと
により、導線表面の絶縁層が熱で溶け、導線１４の銅層
とターミナル部材８にメッキされた錫層とが溶融し、導
線保持部１５にヒュージング接合されている。As shown in FIG. 2, the end of the lead wire 14 of the coil 9 is insulated from the surface of the lead wire by applying a current to the lead wire holding portion 15 of the terminal member 8 with which this end is entangled while crimping the electrode. The layers are melted by heat, the copper layer of the conductive wire 14 and the tin layer plated on the terminal member 8 are melted, and fused to the conductive wire holding portion 15 by fusing.
【００１０】またリード線１３は、ターミナル部材８の
リード線保持部１６に電極を当ててかしめながら電流を
流すことにより、リード線１３の心線の銅層とターミナ
ル部材８にメッキされた錫層とが溶融し、かつリード線
１３の心線の端末に予め施されている半田が接合部全体
に溶け込み、リード線保持部１６に強固に接合されてい
る。なお、半田は高温半田が使用される。In the lead wire 13, a copper layer of the core wire of the lead wire 13 and a tin layer plated on the terminal member 8 are formed by applying an electric current to the lead wire holding portion 16 of the terminal member 8 while crimping the electrode. And are melted, and the solder previously applied to the end of the core wire of the lead wire 13 is melted into the entire joint portion and is firmly joined to the lead wire holding portion 16. High-temperature solder is used as the solder.
【００１１】そしてボビン７の一端面に形成されている
保持溝１７に各リード線１３をそれぞれ軽圧入すること
により、リード線１３のずれ止めがなされる。なお、リ
ード線１３の被覆には、図３に示すように、ケーブル押
さえ１８が予めモールド成形されている。The lead wires 13 are prevented from slipping by lightly press-fitting the lead wires 13 into the holding grooves 17 formed in the one end surface of the bobbin 7. As shown in FIG. 3, a cable retainer 18 is pre-molded on the coating of the lead wire 13.
【００１２】このように組み立てられた感応素子部２と
金属製カラー６とを、図３に示したように下型１９内に
セットした後に上型２０を閉じ、感応素子部２の外面と
下型１９の内面間に形成されたキャビティにゲート２１
から溶融樹脂を射出することにより、図４に示したよう
に、感応素子部２及びカラー６をインサートした状態で
ハウジング部３及びステー部４が一体成形される。The sensitive element portion 2 and the metal collar 6 assembled in this way are set in the lower mold 19 as shown in FIG. 3, and then the upper die 20 is closed to set the outer surface of the sensitive element portion 2 and the lower portion. The gate 21 is provided in the cavity formed between the inner surfaces of the mold 19.
By injecting the molten resin from the housing 3, the housing portion 3 and the stay portion 4 are integrally molded with the sensitive element portion 2 and the collar 6 inserted, as shown in FIG.
【００１３】さて、上述の如くコイル９の周囲を合成樹
脂材にてモールド成形したものに於いては、樹脂材の成
形圧力がコイル９に加わるが、この押圧力が導線１４の
始端部に加わると、導線１４に作用する応力が過大にな
り、場合によっては、導線１４をターミナル部材８の導
線保持部１５へ向けて導出する部分（始端部）が損傷す
るおそれがあった。そこで本発明に於いては、図５に示
したように、ボビン７のフランジ７ａの内側面に、導線
１４の始端部を案内するための案内溝３１を形成するも
のとした。In the case where the coil 9 is molded around the synthetic resin material as described above, the molding pressure of the resin material is applied to the coil 9, but this pressing force is applied to the starting end portion of the conductor wire 14. Then, the stress acting on the conductor wire 14 becomes excessively large, and in some cases, the portion (starting end portion) for leading the conductor wire 14 toward the conductor wire holding portion 15 of the terminal member 8 may be damaged. Therefore, in the present invention, as shown in FIG. 5, a guide groove 31 for guiding the starting end portion of the conductor wire 14 is formed on the inner surface of the flange 7a of the bobbin 7.
【００１４】この案内溝３１は、その軸線方向から見た
形状が、ボビン７の巻軸７ｂの外周に頂点が接する扇形
をなしており、その底面は、外周側へ行くに従って徐々
に深くなると共に、導線１４の巻き方向について徐々に
浅くなるようにされている。そして導線１４の始端部を
この案内溝３１の最も深い部分に沿わせた上でボビン７
の巻軸７ｂに導線１４を巻回してコイル９を構成するも
のとした。The guide groove 31 has a fan shape whose apex is in contact with the outer circumference of the winding shaft 7b of the bobbin 7 when viewed from the axial direction, and the bottom surface thereof gradually becomes deeper toward the outer circumference side. , The winding direction of the conductor wire 14 is gradually reduced. Then, the starting end of the conductor wire 14 is placed along the deepest part of the guide groove 31, and then the bobbin 7
The conducting wire 14 is wound around the winding shaft 7b to form the coil 9.
【００１５】これにより、図６に示すように、案内溝３
１の最も深い部分に導線１４を安定的に沿わせることが
できると共に、コイル９の巻線部分の軸方向変位が小さ
くなり、しかも導線１４が案内溝３１の壁３２にて保護
されるので、コイル９をインサートモールドする際の成
形圧力によるストレスが導線１４の始端部に作用し難く
なる。As a result, as shown in FIG. 6, the guide groove 3
Since the conductor wire 14 can be stably routed along the deepest part of the wire 1, the axial displacement of the winding portion of the coil 9 is reduced, and the conductor wire 14 is protected by the wall 32 of the guide groove 31, The stress due to the molding pressure when the coil 9 is insert-molded hardly acts on the starting end portion of the conductor wire 14.
【００１６】[0016]
【発明の効果】このように本発明によれば、コイルをイ
ンサートモールドした際の成形圧力が導線の始端部に加
わり難くなるので、同部分の断線に対する信頼性を高め
る上に大きな効果を奏することができる。As described above, according to the present invention, the molding pressure at the time of insert-molding the coil is less likely to be applied to the starting end portion of the conductive wire, and thus a great effect can be obtained in improving the reliability against disconnection of the same portion. You can
【図１】本発明による電磁センサの斜視図。FIG. 1 is a perspective view of an electromagnetic sensor according to the present invention.
【図２】感応素子部並びにカラーを金型内にセットした
状態を示す縦断面図。FIG. 2 is a vertical sectional view showing a state in which a sensitive element portion and a collar are set in a mold.
【図３】感応素子部の要部斜視図。FIG. 3 is a perspective view of a main part of a sensitive element section.
【図４】感応素子部並びにカラーを金型内でモールド成
形した状態を示す縦断面図。FIG. 4 is a vertical sectional view showing a state in which a sensitive element portion and a collar are molded in a mold.
【図５】ボビンのフランジ部の内側面を示す部分的な斜
視図。FIG. 5 is a partial perspective view showing an inner surface of a flange portion of the bobbin.
【図６】案内溝と導線との関係を概念的に示す図５に於
けるVI−VI線に沿う部分的な断面図。6 is a partial sectional view taken along line VI-VI in FIG. 5, which conceptually shows the relationship between the guide groove and the conductor.
１ 電磁センサ ２ 感応素子部 ３ ハウジング部 ４ 取付ステー部 ５ ケーブル引出部 ６ 金属製カラー ７ ボビン ８ ターミナル部材 ９ コイル １０ ポールピース １１ 永久磁石 １２ ヨーク １３ リード線 １４ 導線 １５ 導線保持部 １６ リード線保持部 １７ 保持溝 １８ ケーブル押さえ １９ 下型 ２０ 上型 ２１ ゲート ３１ 案内溝 ３２ 壁 DESCRIPTION OF SYMBOLS 1 Electromagnetic sensor 2 Sensitive element part 3 Housing part 4 Mounting stay part 5 Cable extension part 6 Metal collar 7 Bobbin 8 Terminal member 9 Coil 10 Pole piece 11 Permanent magnet 12 Yoke 13 Lead wire 14 Conductive wire 15 Conductive wire holding portion 16 Lead wire holding Part 17 Holding groove 18 Cable retainer 19 Lower mold 20 Upper mold 21 Gate 31 Guide groove 32 Wall
Claims (1)
るコイルボビンであって、 その底面が、外周側へ行くに従って徐々に深くなると共
に前記導線の巻き方向について徐々に浅くなるようにさ
れ、かつその軸線方向から見た形状が前記巻軸の外周に
頂点が接する扇形をなす案内溝を前記フランジの内側面
に形成し、 該案内溝の最も深い部分に、前記導線の始端部を沿わせ
るものとしたことを特徴とするコイルボビン。1. A coil bobbin having a winding shaft and a flange for winding a conductor wire, wherein a bottom surface of the coil bobbin gradually becomes deeper toward an outer peripheral side and becomes gradually shallower in a winding direction of the conductor wire. And a fan-shaped guide groove whose apex is in contact with the outer circumference of the winding shaft when viewed from the axial direction is formed on the inner side surface of the flange, and the leading end portion of the conducting wire is formed at the deepest portion of the guide groove. A coil bobbin characterized by being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08087220A JP3029568B2 (en) | 1996-03-14 | 1996-03-14 | Coil bobbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08087220A JP3029568B2 (en) | 1996-03-14 | 1996-03-14 | Coil bobbin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09251913A true JPH09251913A (en) | 1997-09-22 |
| JP3029568B2 JP3029568B2 (en) | 2000-04-04 |
Family
ID=13908827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08087220A Expired - Fee Related JP3029568B2 (en) | 1996-03-14 | 1996-03-14 | Coil bobbin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3029568B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009054937A (en) * | 2007-08-29 | 2009-03-12 | Sumida Corporation | Coil bobbin |
-
1996
- 1996-03-14 JP JP08087220A patent/JP3029568B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009054937A (en) * | 2007-08-29 | 2009-03-12 | Sumida Corporation | Coil bobbin |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3029568B2 (en) | 2000-04-04 |
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