JPH0446444B2 - - Google Patents
Info
- Publication number
- JPH0446444B2 JPH0446444B2 JP58163853A JP16385383A JPH0446444B2 JP H0446444 B2 JPH0446444 B2 JP H0446444B2 JP 58163853 A JP58163853 A JP 58163853A JP 16385383 A JP16385383 A JP 16385383A JP H0446444 B2 JPH0446444 B2 JP H0446444B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- terminal
- secondary terminal
- protrusion
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/12—Ignition, e.g. for IC engines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内燃機関用点火コイルの２次ターミナ
ル固定構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a secondary terminal fixing structure for an ignition coil for an internal combustion engine.
最近、点火コイルの２次巻線を分割ボビンに巻
線するタイプのコイルが市場に出回つてきている
が、このタイプの大きな特徴は巻線の端末処理を
巻線機内で全部行なうことができることであり、
巻始め部の線撚り、各溝への巻線、各溝間の渡
り、巻終り部の線撚り、２次ターミナル部へのか
らげ等をすべて巻線機内で行なうことができ、作
業者は巻線機への脱着を行なうだけ良くなり、直
径0.05〜0.07mmと細線の巻線を簡単に行なうこと
ができる。しかし、ターミナル部へのからげを巻
線機内で行なうためには、あらかじめターミナル
を２次ボビンの巻終り側の端面に固定しておく必
要があり、従来は第１図，第２図に示す如く、２
次ボビンの巻終り側端面部に設けた穴２０１に、
２次ターミナル１の円柱突出部１０３と圧入し、
２次ターミナル１を２次ボビン２に固定していた
しかし、このものであると打ち込み深さｌだけ
軸長が長くなる。また、２次ターミナル１を２次
ボビン２に打ち込む時に打ち込み代が大きすぎる
と２次ボビン２のＢ部にクラツクが入り、２次タ
ーミナル１が緩み、巻線時に２次ターミナル１が
脱落する不具合があつた。
Recently, a type of coil in which the secondary winding of the ignition coil is wound on a split bobbin has been appearing on the market, but the major feature of this type is that the terminal processing of the winding can be done entirely within the winding machine. It is possible,
Wire twisting at the beginning of winding, winding to each groove, crossing between each groove, twisting of wire at the end of winding, twisting to the secondary terminal, etc. can all be done within the winding machine, and the operator can Simply attaching and detaching the wire to the winding machine makes it easy to wind thin wires with a diameter of 0.05 to 0.07 mm. However, in order to tie the terminal part inside the winding machine, it is necessary to fix the terminal to the winding end side of the secondary bobbin in advance. Like, 2
In the hole 201 provided on the end surface of the next bobbin at the winding end,
Press fit into the cylindrical protrusion 103 of the secondary terminal 1,
The secondary terminal 1 was fixed to the secondary bobbin 2. However, in this case, the shaft length becomes longer by the driving depth l. In addition, if the driving allowance is too large when driving the secondary terminal 1 into the secondary bobbin 2, a crack will occur in the B part of the secondary bobbin 2, causing the secondary terminal 1 to become loose, causing the secondary terminal 1 to fall off during winding. It was hot.
本発明は上記従来の不具合点を解消するため、
２次ボビンの巻終り側端面に突起を設け、２次タ
ーミナルには前記突起を圧入する筒部を設け、該
筒部に前記突起を圧入し、固定するようにしたこ
とにより、従来のように軸長が長くなつたり、ク
ラツクが入つたりすることがなくなり、小型で品
質の良い点火コイルを提供することができるよう
になることを目的とする。
In order to solve the above-mentioned conventional drawbacks, the present invention has the following features:
A protrusion is provided on the winding end side end surface of the secondary bobbin, a cylindrical portion into which the protrusion is press-fitted is provided on the secondary terminal, and the protrusion is press-fitted into the cylindrical portion and fixed. It is an object of the present invention to provide a compact, high-quality ignition coil that does not have a long shaft length or cracks.
以下本発明を図に示す実施例にて説明する。第
３図および第４図にいて、１′は２次ターミナル
で、２次コイル３の高圧端と、高圧コード１０と
を電気的に結合する部品であり、高圧コード側は
ネジ込みにより接触導通させるよう、ネジが切ら
れている。また、２次ターミナル１′の２次ボビ
ン２′に固定する側は、筒部１０３′を有し、該筒
部１０３′の内径は２次ボビン２′の巻終り側端面
に設けた突起２０１′に圧入される。また、筒部
１０３′の外径は、ケース８の底部に設けられた
穴８０２に隙間嵌合される。１０２′は前記筒部
１０３′の開放端に設けられたツバ部で、２次巻
線３の巻終り線を電気的に結線する部分である。
２′は合成樹脂製の２次ボビンで複数のツバによ
り巻線溝が区画形成されており、巻始め側端面に
は１次ターミナル７が固定されており、巻始め線
が結線してある。巻終り側端面には第３図に示す
ごとく２次巻線３の外形より内側に位置させて円
柱状の突起２０１′が一体に設けられており、該
突起２０１′の外径部には複数（４つ）の軸線状
に伸びるリブ２０２′が設けられており、該リブ
２０２′の外径は前記２次ターミナル１′の筒部１
０３′の内径と圧入嵌合される際、リブ２０２′が
外径方向から押しつぶされて両者の固定ができる
大きさにしてある。そのリブ２０２′が外径から
押しつぶされた体積は周方向の隙間部に逃げるの
で、容易に圧入ができ、かつ突起２０１′にクラ
ツクが入ることもない。３は２次巻線で巻始めは
１次ターミナル７に結線され、巻終りは２次ター
ミナル１′のツバ部１０２′に結線されている。４
は１次ボビン、５は１次巻線、６は磁心である。
７は１次ターミナルである。８はケースであり、
底部には２次ターミナル１′の筒部１０３′の外径
が嵌入する穴８０２が設けられており、その先端
には高圧コード挿入用の筒部８０１が一体に設け
られている。１０は高圧コードである。
The present invention will be explained below with reference to embodiments shown in the drawings. In Figures 3 and 4, 1' is a secondary terminal, which is a part that electrically connects the high voltage end of the secondary coil 3 and the high voltage cord 10, and the high voltage cord side is screwed in for contact continuity. The screws are cut so that Further, the side of the secondary terminal 1' that is fixed to the secondary bobbin 2' has a cylindrical part 103', and the inner diameter of the cylindrical part 103' is equal to the protrusion 201 provided on the end surface of the winding end side of the secondary bobbin 2'. ’ is press-fitted. Further, the outer diameter of the cylindrical portion 103' is fit into a hole 802 provided at the bottom of the case 8 with a clearance. 102' is a collar provided at the open end of the cylindrical portion 103', and is a portion for electrically connecting the winding end wire of the secondary winding 3.
Reference numeral 2' denotes a secondary bobbin made of synthetic resin, in which a winding groove is defined by a plurality of flanges, a primary terminal 7 is fixed to the end face on the winding start side, and a winding start wire is connected thereto. As shown in FIG. 3, a cylindrical protrusion 201' is integrally provided on the end surface of the end of the winding, positioned inside the outer shape of the secondary winding 3. (4) axially extending ribs 202' are provided, and the outer diameter of the ribs 202' is equal to the diameter of the cylindrical portion 1 of the secondary terminal 1'.
When the rib 202' is press-fitted to the inner diameter of the 03', the rib 202' is crushed from the outer diameter direction and is sized to be able to fix the two. Since the volume of the rib 202' compressed from the outer diameter escapes into the gap in the circumferential direction, press-fitting can be easily performed and the protrusion 201' will not be cracked. 3 is a secondary winding whose beginning is connected to the primary terminal 7, and its end is connected to the collar 102' of the secondary terminal 1'. 4
is a primary bobbin, 5 is a primary winding, and 6 is a magnetic core.
7 is the primary terminal. 8 is a case;
A hole 802 is provided at the bottom into which the outer diameter of the cylindrical portion 103' of the secondary terminal 1' is fitted, and a cylindrical portion 801 for inserting a high voltage cord is integrally provided at the tip thereof. 10 is a high voltage cord.
以上の構成において、２次ターミナル１′に筒
部１０３′を設け、該筒部１０３′２次ボビン２′
の巻終り側端面に設けた突起２０１′に圧入固定
するようにしたことにより、２次ターミナル１′
を２次ボビン２′へ固定するための軸方向の寸法
ｌが不要となり、コイル本体の軸長が短くなり、
コイルの小型化ができると共に、突起２０１′の
外周に複数のリブ２０２′を設け、該リブ２０
２′と前記２次ターミナル１′の筒部１０３′の内
径とで圧入固定するようにしたことにより、圧入
時リブ２０２′が周方向へ変形して固定されるの
で、突起２０１′にむりな力が加わらず、従来の
ようなクラツクが入るというような不具合は全く
なくなり、小型で品質の良い点火コイルを提供で
きるようになる。 In the above configuration, the secondary terminal 1' is provided with the cylindrical part 103', and the cylindrical part 103' is provided with the secondary bobbin 2'.
The secondary terminal 1'
The axial length l for fixing the coil to the secondary bobbin 2' becomes unnecessary, and the axial length of the coil body becomes shorter.
The coil can be made smaller, and a plurality of ribs 202' are provided on the outer periphery of the protrusion 201'.
2' and the inner diameter of the cylindrical portion 103' of the secondary terminal 1', the rib 202' is deformed and fixed in the circumferential direction when press-fitted, so that the rib 202' is not forced into the protrusion 201'. Problems such as no force being applied and cracks occurring in the past are completely eliminated, making it possible to provide a compact, high-quality ignition coil.
（発明の効果）
コイルボビン端面の２次巻線外形より内側に設
けた突起に２次ターミナルを固定することができ
て、コイル本体の径方向寸法を大きくすることな
く、２次ターミナルを２次ボビンへ固定するため
の軸方向寸法を短縮でき、しかし、突起は２次タ
ーミナルの筒部に圧入されて、この筒部を介して
ケースの穴内に嵌合されるため、突起の存在によ
つてコイル本体の軸方向寸法が何ら増大しないた
め、コイルの小型化ができるという優れた効果が
ある。(Effect of the invention) The secondary terminal can be fixed to the protrusion provided on the end face of the coil bobbin inside the outer shape of the secondary winding, and the secondary terminal can be attached to the secondary bobbin without increasing the radial dimension of the coil body. However, since the protrusion is press-fitted into the cylindrical part of the secondary terminal and is fitted into the hole in the case via this cylindrical part, the presence of the protrusion makes it possible to reduce the axial dimension of the coil. Since the axial dimension of the main body does not increase at all, there is an excellent effect that the coil can be made smaller.
第１図は従来周知の点火コイルの要部縦断面
図、第２図は第１図図示のＡ−Ａ線に沿う拡大横
断面図、第３図は本発明点火コイルの一実施例を
示す要部縦断面図、第４図は第３図図示のＣ−Ｃ
線に沿う要部拡大横断面図である。
１′…２次ターミナル、２′…２次ボビン、３…
２次巻線、８…ケース、１０３′…筒部、２０
１′…突起、２０２′…リブ。
FIG. 1 is a vertical cross-sectional view of a main part of a conventionally known ignition coil, FIG. 2 is an enlarged cross-sectional view taken along line A-A shown in FIG. 1, and FIG. 3 is an embodiment of the ignition coil of the present invention. Main part longitudinal sectional view, Figure 4 is C-C shown in Figure 3
FIG. 3 is an enlarged cross-sectional view of the main part along the line. 1'...Secondary terminal, 2'...Secondary bobbin, 3...
Secondary winding, 8...Case, 103'...Cylinder part, 20
1'...protrusion, 202'...rib.
Claims (1)
ターミナルへ巻線端末を結線するものにおいて、
前記コイルボビンの端面に、２次巻線の外形より
内側に位置させて柱状突起を一体に設け、この柱
状突起と前記２次ターミナルに設けた筒部とを圧
入固定し、この筒部の外周をケースの穴に嵌合し
た点火コイルの２次ターミナル固定構造。 ２ 前記突起はその外周に複数のリブを有してな
る特許請求の範囲第１項記載の点火コイルの２次
ターミナル固定構造。[Claims] 1. A device in which a secondary terminal is fixed to a coil bobbin and a winding end is connected to the terminal,
A columnar projection is integrally provided on the end face of the coil bobbin so as to be located inside the outer shape of the secondary winding, and the columnar projection and a cylindrical portion provided on the secondary terminal are press-fitted and fixed, and the outer periphery of the cylindrical portion is fixed. A fixed structure for the secondary terminal of the ignition coil that fits into the hole in the case. 2. The ignition coil secondary terminal fixing structure according to claim 1, wherein the protrusion has a plurality of ribs on its outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58163853A JPS6054416A (en) | 1983-09-05 | 1983-09-05 | Secondary terminal fixing structure of ignition coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58163853A JPS6054416A (en) | 1983-09-05 | 1983-09-05 | Secondary terminal fixing structure of ignition coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054416A JPS6054416A (en) | 1985-03-28 |
| JPH0446444B2 true JPH0446444B2 (en) | 1992-07-30 |
Family
ID=15781995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58163853A Granted JPS6054416A (en) | 1983-09-05 | 1983-09-05 | Secondary terminal fixing structure of ignition coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054416A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS611709Y2 (en) * | 1981-01-26 | 1986-01-21 |
-
1983
- 1983-09-05 JP JP58163853A patent/JPS6054416A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6054416A (en) | 1985-03-28 |
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