JPH0311420Y2 - - Google Patents
Info
- Publication number
- JPH0311420Y2 JPH0311420Y2 JP7195785U JP7195785U JPH0311420Y2 JP H0311420 Y2 JPH0311420 Y2 JP H0311420Y2 JP 7195785 U JP7195785 U JP 7195785U JP 7195785 U JP7195785 U JP 7195785U JP H0311420 Y2 JPH0311420 Y2 JP H0311420Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- iron core
- core
- plate
- pick
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 45
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 11
- 229920003002 synthetic resin Polymers 0.000 description 11
- 239000000057 synthetic resin Substances 0.000 description 11
- 230000002265 prevention Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 8
- 238000009826 distribution Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
Ａ 考案の目的
(1) 産業上の利用分野
本考案は内燃機関用点火装置のパルスジエネレ
ータ、特に外周面に機関の気筒数に応じた突起を
有するシグナルロータの外周に、鉄心をそれの先
端部が前記突起に対向し得るように配設し、該鉄
心にピツクアツプコイルを巻装して前記先端部を
該ピツクアツプコイルより突出させ、前記鉄心の
基端部にマグネツトを結着したものの改良に関す
る。[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention is a pulse generator for an ignition system for an internal combustion engine, and in particular, the outer periphery of a signal rotor having protrusions corresponding to the number of cylinders of the engine on the outer periphery. An iron core is arranged so that its tip can face the protrusion, a pick-up coil is wound around the iron core so that the tip protrudes from the pick-up coil, and a magnet is attached to the proximal end of the iron core. Concerning the improvement of a system that combines the following.
(2) 従来の技術
従来、この種パルスジエネレータにおいて鉄心
とマグネツトは止めねじ等により結着され、また
鉄心に対するピツクアツプコイルの抜止めは、そ
のコイルの合成樹脂製ボビンに接着剤を塗布して
鉄心に設けられたストツパに重合し、またボビン
に突設された複数の抜止め突起をストツパの複数
の挿通孔にそれぞれ貫通させ、それら抜止め突起
の突出部を加熱してリベツト頭状に成形すること
により行われている。(2) Conventional technology Conventionally, in this type of pulse generator, the core and magnet are connected by a set screw, etc., and the pick-up coil is prevented from being removed from the core by applying adhesive to the synthetic resin bobbin of the coil. It overlaps with the stopper provided on the iron core, and the plurality of retaining protrusions protruding from the bobbin are passed through the plurality of insertion holes of the stopper, and the protruding parts of the retaining protrusions are heated and formed into the shape of a rivet head. This is done by
(3) 考案が解決しようとする問題点
しかしながら、鉄心とマグネツトの結着および
鉄心に対するピツクアツプコイルの抜止めを別々
に行うと、パルスジエネレータの組立工数が多く
なり、特に前記ピツクアツプコイルの抜止め作業
は接着剤および加熱手段を必要とするのでコスト
高の原因となる上、接着剤の塗布および各抜止め
突起の突出部に対する成形を含むので多くの手数
を要するという問題がある。(3) Problems to be solved by the invention However, if the bonding of the iron core and the magnet and the prevention of the pick-up coil from the iron core are performed separately, the number of man-hours required for assembling the pulse generator increases. The work requires an adhesive and a heating means, which causes high costs, and there is a problem that it requires a lot of work because it includes applying the adhesive and molding the protruding portion of each retaining protrusion.
本考案は前記従来の問題点を解決し得る前記パ
ルスジエネレータを提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a pulse generator capable of solving the conventional problems.
Ｂ 考案の構成
(1) 問題点を解決するための手段
本考案は、コイル抜止め板の一端部に形成され
た挿通孔に前記鉄心の先端部を貫通させて前記ピ
ツクアツプコイルを該鉄心に設けられたストツパ
と該コイル抜止め板間に挾着し、前記コイル抜止
め板の他端部、前記鉄心の基端部および前記マグ
ネツトを支持金具に重合してそれら四部材を一体
に結着したことを特徴とする。B. Structure of the invention (1) Means for solving the problem The invention provides a method for installing the pick-up coil in the iron core by passing the tip of the iron core through an insertion hole formed at one end of the coil retaining plate. The other end of the coil removal prevention plate, the proximal end of the iron core, and the magnet were superimposed on the support metal fitting to bind these four members together. It is characterized by
(2) 作 用
ピツクアツプコイルは鉄心のストツパとコイル
抜止め板間に挾着され、またそのコイル抜止め
板、鉄心およびマグネツトは支持計具に重合され
てそれら四部材が一体に結着されているので、ピ
ツクアツプコイルが鉄心から抜けることがなく、、
またコイル抜止め板、鉄心およびマグネツトが支
持金具から外れることもない。(2) Function The pick-up coil is clamped between the core stopper and the coil removal prevention plate, and the coil removal prevention plate, the iron core, and the magnet are superimposed on the support device, and these four members are bonded together. This prevents the pick-up coil from coming out of the iron core.
Further, the coil retaining plate, iron core, and magnet will not come off from the support fittings.
(3) 実施例
第１、第２図において、配電器Ｄのハウジング
１は一端に開口部を持ち筒状をなすアルミニウム
合金製ハウジング本体２と、その開口部にシール
部材３を介して開閉可能にねじ４により結着され
る合成樹脂製キヤツプ５とよりなる。ハウジング
本体２内には駆動軸６が突入しており、その駆動
軸６の一端部は軸受７を介してハウジング本体２
の端壁２ｃに回転自在に支承され、またハウジン
グ１内に臨む他端部は軸受８およびそれを保持す
るホルダ９を介してハウジング本体２に回転自在
に支承される。１０はホルダ９の止めねじであ
る。(3) Embodiment In Figures 1 and 2, the housing 1 of the power distributor D has a cylindrical aluminum alloy housing body 2 with an opening at one end, and can be opened and closed through a sealing member 3 in the opening. A cap 5 made of synthetic resin is secured to the cap 5 by a screw 4. A drive shaft 6 protrudes into the housing body 2, and one end of the drive shaft 6 is connected to the housing body 2 via a bearing 7.
The other end facing into the housing 1 is rotatably supported by the housing body 2 via a bearing 8 and a holder 9 that holds it. 10 is a set screw of the holder 9.
駆動軸６の突入端には配電ロータ１１が止めね
じ１２により固定され、また突出端にはオルダム
継手１３が取付けられ、そのオルダム継手１３は
図示しない機関により駆動されるカム軸等の回転
軸に取付けられたオルダム継手に噛合する。これ
により駆動軸６は機関より駆動される。 A power distribution rotor 11 is fixed to the protruding end of the drive shaft 6 by a set screw 12, and an Oldham joint 13 is attached to the protruding end. Mates with the installed Oldham joint. As a result, the drive shaft 6 is driven by the engine.
駆動軸６には両軸受７，８間において中空のロ
ータ軸１４が回転自在に嵌合される。軸受７側に
位置するロータ軸１４の一端と駆動軸６とは公知
の遠心進角機構Ｇを介して連結される。 A hollow rotor shaft 14 is rotatably fitted to the drive shaft 6 between both bearings 7 and 8 . One end of the rotor shaft 14 located on the bearing 7 side and the drive shaft 6 are connected via a known centrifugal advance mechanism G.
遠心進角機構Ｇは駆動軸６に一体に固着された
基板１５と、ロータ軸１４に一体に固着された点
火調時板１６と、基板１５に揺動自在に支承され
た一対の重錘１７と、それら重錘１７の支承ピン
１８と点火調時板１６に立設された支承ピン１９
間に張設された一対のばね２０とよりなる。 The centrifugal advance mechanism G includes a base plate 15 integrally fixed to the drive shaft 6, an ignition timing plate 16 integrally fixed to the rotor shaft 14, and a pair of weights 17 swingably supported by the base plate 15. , the support pin 18 of the weight 17 and the support pin 19 erected on the ignition timing plate 16
It consists of a pair of springs 20 stretched between them.
第１，第２，第２Ａ図に明示するようにロータ
軸１４の周囲には、以下に述べる構造のパルスジ
エネレータＰが配設される。 As clearly shown in FIGS. 1, 2, and 2A, a pulse generator P having the structure described below is disposed around the rotor shaft 14.
即ち、ロータ軸１４の外周面に機関の気筒数に
応じた突起２１ａを有するジグナルロータ２１が
固着される。そのシグナルロータ２１と遠心進角
機構Ｇとの間において軸受２２が配設され、その
軸受２２の外輪２２ａがハウジング本体２の段部
２３に係合され、押え金具６５およびそれをハウ
ジング本体２に止める止めねじ６６を介してハウ
ジング本体２に固定される。 That is, a signal rotor 21 having protrusions 21a corresponding to the number of cylinders of the engine is fixed to the outer peripheral surface of the rotor shaft 14. A bearing 22 is disposed between the signal rotor 21 and the centrifugal advance mechanism G, and the outer ring 22a of the bearing 22 is engaged with the stepped portion 23 of the housing body 2, and the presser metal fitting 65 and it are attached to the housing body 2. It is fixed to the housing body 2 via a set screw 66.
第２Ａ図に明示するように、内輪２２ｂ上に
は、磁性材料よりなる支持金具２４が配設され
る。その支持金具２４は、２本の止めねじ７０に
より内輪２２ｂに固着される取付板２４ａと、そ
の取付板２４ａにおけるハウジング本体２側の側
縁より立上がる支持板２４ｂとよりなる。 As clearly shown in FIG. 2A, a support fitting 24 made of a magnetic material is disposed on the inner ring 22b. The support fitting 24 includes a mounting plate 24a fixed to the inner ring 22b by two setscrews 70, and a support plate 24b rising from the side edge of the mounting plate 24a on the housing body 2 side.
支持板２４ｂにおけるシグナルロータ２１との
対向面には、コイル抜止め板６４が重合され、ま
た支持板２４ｂにおけるハウジング本体２との対
向面にはマグネツト２５および板状鉄心２６の基
端部がこの順序で重合され、これら四部材２４
ｂ，２５，２６，６４はコイル抜止め板６４、支
持板２４ｂおよびマグネツト２５を貫通して鉄心
２６の基端部に螺着される２本の止めねじ７１に
より一体に結着される。 A coil removal prevention plate 64 is superimposed on the surface of the support plate 24b facing the signal rotor 21, and a magnet 25 and the base end of the plate iron core 26 are superimposed on the surface of the support plate 24b facing the housing body 2. Polymerized in sequence, these four members 24
b, 25, 26, and 64 are integrally connected by two setscrews 71 that pass through the coil retaining plate 64, the support plate 24b, and the magnet 25, and are screwed onto the base end of the iron core 26.
鉄心２６は、ハウジング本体２内面に沿うよう
に折曲げられ前記基端部を含む取付板２６ａと、
その取付板２６ａにそれと略直角をなすように連
設されたコイル巻装板２６ｂとよりなり、そのコ
イル巻装板２６ｂの先端部ｅはシグナルロータ２
１の各突起２１ａと対向し得るようになつてい
る。 The iron core 26 includes a mounting plate 26a that is bent along the inner surface of the housing body 2 and includes the base end portion;
The mounting plate 26a has a coil winding plate 26b connected to the mounting plate 26a so as to be substantially perpendicular to the mounting plate 26a.
The protrusions 21a of the protrusions 21a of the protrusions 21a of FIG.
ピツクアツプコイル２７は合成樹脂製ボビン２
７ａと、そのボビン２７ａに巻装されたコイル２
７ｂとよりなり、ボビン２７ａ中心の挿通孔７２
は鉄心２６のコイル巻装板２６ａに嵌合される。
これによりピツクアツプコイル２７がコイル巻装
板２６ｂに巻装されると共にそのボビン２７ａ
が、ストツパとして機能する取付板２６ａに当接
してコイル巻装板２６ｂの先端部ｅがボビン２７
ａの端面より突出する。 The pick-up coil 27 is a synthetic resin bobbin 2.
7a and the coil 2 wound around the bobbin 27a
7b, and the insertion hole 72 at the center of the bobbin 27a.
is fitted into the coil winding plate 26a of the iron core 26.
As a result, the pick-up coil 27 is wound on the coil winding plate 26b and the bobbin 27a is wound on the coil winding plate 26b.
However, the tip e of the coil winding plate 26b comes into contact with the mounting plate 26a that functions as a stopper and the bobbin 27
It protrudes from the end face of a.
前記コイル抜止め板６４の一端部には挿通孔７
３が形成され、その挿通孔７３にコイル巻装板２
６ｂの先端部ｅが貫通し、ピツクアツプコイル２
７が取付板２６ａとコイル抜止め板６４間に挾着
される。この挾着状態において前記のようにコイ
ル抜止め板６４の他端部が支持板２４ｂに両止め
ねじ７１により結着されるので、ピツクアツプコ
イル２７の抜止めおよび鉄心２６とマグネツト２
５との結着が同一工程で行われる。 An insertion hole 7 is provided at one end of the coil retaining plate 64.
3 is formed, and the coil winding plate 2 is inserted into the insertion hole 73.
The tip e of 6b passes through the pick-up coil 2.
7 is clamped between the mounting plate 26a and the coil retaining plate 64. In this clamped state, the other end of the coil removal prevention plate 64 is fixed to the support plate 24b by both setscrews 71 as described above, so that the pick-up coil 27 is prevented from removal and the iron core 26 and the magnet 2 are
Bonding with 5 is performed in the same process.
内輪２２ｂは連結ロツド２８を介して公知の真
空進角機構Ｖに連結される。 The inner ring 22b is connected to a known vacuum advance mechanism V via a connecting rod 28.
ロータ軸１４には磁気伝達板２９が圧入固定さ
れ、その外周面はロータ軸１４を囲繞する内輪２
２ｂの内周面に近接する。このようにロータ軸１
４と内輪２２ｂ間に磁気伝達板２９を介在させる
理由は以下の通りである。即ち、組立上ロータ軸
１４にシグナルロータ２１、遠心進角機構Ｇの点
火調時板１６等を取付けた後そのロータ軸１４を
駆動軸６に嵌合するので、前もつて軸受２２をハ
ウジング本体２に固定することができない。そこ
でロータ軸１４を駆動軸６に嵌合した後軸受２２
をハウジング本体２に取付けることになるので内
輪２２ｂの内径をシグナルロータ２１の外径より
も大きくする必要があり、その結果ロータ軸１４
と内輪２２ｂ間の間隔が広くなる。磁気伝達板２
９はこの広い間隔を埋めてロータ軸１４と内輪２
２ｂ間に磁束を形成するために必要なものであ
る。 A magnetic transmission plate 29 is press-fitted and fixed to the rotor shaft 14, and its outer peripheral surface is connected to the inner ring 2 surrounding the rotor shaft 14.
It is close to the inner peripheral surface of 2b. In this way, rotor shaft 1
The reason why the magnetic transmission plate 29 is interposed between the inner ring 22b and the inner ring 22b is as follows. That is, in assembly, the signal rotor 21, the ignition timing plate 16 of the centrifugal advance mechanism G, etc. are attached to the rotor shaft 14, and then the rotor shaft 14 is fitted to the drive shaft 6. It cannot be fixed to 2. Therefore, after fitting the rotor shaft 14 to the drive shaft 6, the bearing 22
is attached to the housing body 2, it is necessary to make the inner diameter of the inner ring 22b larger than the outer diameter of the signal rotor 21, and as a result, the rotor shaft 14
The distance between the inner ring 22b and the inner ring 22b becomes wider. Magnetic transmission plate 2
9 fills this wide gap and connects the rotor shaft 14 and the inner ring 2.
This is necessary to form a magnetic flux between 2b.
配電ロータ１１は駆動軸６に嵌合される合成樹
脂体１１ａと、その合成樹脂体１１ａに埋設され
た配電電極３０とよりなる。その配電電極３０の
先端は、キヤツプ５内に一端を露出させてそのキ
ヤツプ５に埋設された側電極３１に対向し得るよ
うになつている。側電極３１は機関の気筒数に合
わせて複数設けられており、それらは図示しない
点火プラグに接続される。配電電極３０の基端は
合成樹脂体１１ａの端面に露出し、その基端には
キヤツプ５に設けられたカーボン製中心電極３２
が摺接するようになつている。 The power distribution rotor 11 includes a synthetic resin body 11a fitted to the drive shaft 6, and a power distribution electrode 30 embedded in the synthetic resin body 11a. One end of the power distribution electrode 30 is exposed inside the cap 5 so that it can face a side electrode 31 buried in the cap 5. A plurality of side electrodes 31 are provided according to the number of cylinders of the engine, and these are connected to a spark plug (not shown). The base end of the power distribution electrode 30 is exposed on the end surface of the synthetic resin body 11a, and the carbon center electrode 32 provided on the cap 5 is attached to the base end.
are now in sliding contact.
駆動軸６の一側に隣接して、ハウジング１内に
はハウジング本体２とキヤツプ５間に亘る点火コ
イル収容空間Ｓが設けられ、その空間Ｓ内で点火
コイル３３がハウジング本体２の内壁に固定され
る。 Adjacent to one side of the drive shaft 6, an ignition coil accommodating space S extending between the housing body 2 and the cap 5 is provided in the housing 1, and an ignition coil 33 is fixed to the inner wall of the housing body 2 within the space S. be done.
点火コイル３３は第３，４図に示すように、、
四角形の枠形鉄心３４と、その鉄心３４のコイル
巻心部に同心状に巻装された１次および２次コイ
ル４６，４８と、それらコイル４６，４８を収容
するケース４９とより構成される。鉄心３４は異
方性ケイ素鋼板を成層した各一対の第１、第２縦
材３５1，３５2および第１、第２横材３６1，３
６2よりなり、それらの両端面を略45゜の斜面にす
ると共に各横材３６1，３６2の端面に突設された
あり３７を各縦材３５1，３５2の端面に形成され
たあり溝３８に嵌着して四角形の枠形に構成され
る。このように鉄心３４を四部材３５1，３５2お
よび３６1，３６2より枠形に構成する理由は、各
部材の磁化容易方向をその長手方向に沿わせて閉
磁力を形成するためである。 As shown in FIGS. 3 and 4, the ignition coil 33 is
It is composed of a rectangular frame-shaped iron core 34, primary and secondary coils 46 and 48 concentrically wound around the coil winding core of the iron core 34, and a case 49 that accommodates these coils 46 and 48. . The iron core 34 includes a pair of first and second vertical members 35 1 , 35 2 and first and second cross members 36 1 , 3 made of layered anisotropic silicon steel plates.
6 2 , both end faces of which are sloped at approximately 45°, and dovetails 37 protruding from the end faces of each of the horizontal members 36 1 and 36 2 are formed on the end faces of each of the vertical members 35 1 and 35 2 . It is fitted into the dovetail groove 38 and formed into a rectangular frame shape. The reason why the iron core 34 is formed into a frame shape by the four members 35 1 , 35 2 and 36 1 , 36 2 is to form a closed magnetic force by aligning the direction of easy magnetization of each member along its longitudinal direction. .
各縦材３５1，３５2の長さl1は各横材３６1，３
６2の長さl2よりも短く（即ちl2＞l1）、また各縦材
３５1，３５2の幅w1は各横材３６1，３６2の幅w2
よりも狭く（即ちw2＞w1）、さらに各縦材３５1，
３５2の厚さt1は各横材３６1，３６2の厚さt2より
も厚く（即ちt1＞t2）なつているが、縦材３５1，
３５2と横材３６1，３６2の横断面積は同一に設
定され、これにより両材３５1，３５2および３６
１，３６2における磁気抵抗の均一化が図れてい
る。 The length l 1 of each vertical member 35 1 , 35 2 is the length l 1 of each horizontal member 36 1 , 3
6 2 is shorter than the length l 2 (i.e. l 2 > l 1 ), and the width w 1 of each vertical member 35 1 , 35 2 is shorter than the width w 2 of each horizontal member 36 1 , 36 2
(i.e. w 2 > w 1 ), and each longitudinal member 35 1 ,
The thickness t 1 of 35 2 is thicker than the thickness t 2 of each of the horizontal members 36 1 , 36 2 (i.e., t 1 >t 2 ), but the longitudinal members 35 1 ,
The cross-sectional areas of 35 2 and the cross members 36 1 , 36 2 are set to be the same, so that both members 35 1 , 35 2 and 36
1 and 36 2 , the magnetic resistance is made uniform.
各縦材３５1，３５2とそれに連結される両横材
３６1，３６2の端部には、両側から一対の押え板
３９が当てられており、両押え板３９は各縦材３
５1，３５2および各横材３６1，３６2をそれぞれ
貫通するリベツト４０により結合される。両縦材
３５1，３５2の一面において、押え板３９にはシ
ム４１が重合され、各シム４１は前記リベツト４
０により押え板３９と一体に接合される。各シム
４１は、後述するように点火コイル３３をハウジ
ング本体２に取付ける際ハウジング本体２の取付
面と鉄心３４間の隙間を埋める機能を有する。鉄
心３４の一辺である第１横材３６1はコイル巻心
部としてケース４９内に収容され、また両縦材３
５1，３５2および第２横材３６2はケース４９外
に露出するもので、両縦材３５1，３５2における
シム４１の重合部および第２横材３６2の両端部
にはそれぞれねじ挿通孔４２が形成され、各ねじ
挿通孔４２には前記シム４１と反対側よりねじ孔
４３を有するフランジ付筒体４４が嵌着される。 A pair of presser plates 39 are applied from both sides to the ends of each vertical member 35 1 , 35 2 and both horizontal members 36 1 , 36 2 connected thereto.
5 1 , 35 2 and each cross member 36 1 , 36 2 by a rivet 40 passing through them. On one side of both longitudinal members 35 1 and 35 2 , shims 41 are superimposed on the presser plate 39, and each shim 41 is attached to the rivet 4.
0, it is integrally joined to the presser plate 39. Each shim 41 has the function of filling the gap between the mounting surface of the housing body 2 and the iron core 34 when the ignition coil 33 is attached to the housing body 2, as will be described later. The first horizontal member 36 1 , which is one side of the iron core 34, is housed in the case 49 as a coil winding core, and both vertical members 3
5 1 , 35 2 and the second cross member 36 2 are exposed outside the case 49, and there are screws at the overlapping part of the shim 41 in both the vertical members 35 1 , 35 2 and at both ends of the second cross member 36 2 . Insertion holes 42 are formed, and a flanged cylinder 44 having a screw hole 43 is fitted into each screw insertion hole 42 from the side opposite to the shim 41 .
第１横材３６1は長手方向二等分位置にエアギ
ヤツプｇを有し、その外周面には合成樹脂製ボビ
ン４５を介して１次コイル４６が、また１次コイ
ル４６の外周には合成樹脂製ボビン４７を介して
２次コイル４８が同心状に巻装される。両コイル
４６，４８は第１横材３６1の幅方向に長径を位
置させた横断面略長円形を呈する。 The first cross member 36 1 has an air gap g at a bisecting position in the longitudinal direction, and a primary coil 46 is attached to the outer peripheral surface of the air gap via a synthetic resin bobbin 45, and a synthetic resin is attached to the outer periphery of the primary coil 46. A secondary coil 48 is concentrically wound through a manufactured bobbin 47. Both coils 46 and 48 have a substantially oval cross section with the major axis located in the width direction of the first cross member 36 1 .
第１横材３６1および両コイル４６，４８は、
それと横断面形状が同一の合成樹脂製有底ケース
４９内に収容されており、そのケース４９内にポ
ツテイング処理を施して両コイル４６，４８が合
成樹脂塊Ｒ中に封入されている。両縦材３５1，
３５2間から食出ているケース４９の長径側外周
面には端子収容孔５０を有する膨出部４９ａが設
けられ、その内部に高圧端子５１が挿入されて端
子収容孔５０を満たす前記合成樹脂塊Ｒ中に封入
される。高圧端子５１の内面には凹部５１ａが形
成され、その凹部５１ａと対面するように膨出部
４９ａの外壁には窓５２が形成される。またケー
ス４９の外周面には窓５２を囲繞する沿面放電防
止用筒部４９ｂが突設される。 The first cross member 36 1 and both coils 46 and 48 are
The coils 46 and 48 are housed in a bottomed case 49 made of synthetic resin having the same cross-sectional shape as that of the main body, and both coils 46 and 48 are sealed in the synthetic resin mass R by potting the coils 46 and 48 inside the case 49. Both vertical members 35 1 ,
A bulge portion 49a having a terminal accommodating hole 50 is provided on the outer peripheral surface of the longer diameter side of the case 49 protruding from between 35 and 2 , and a high voltage terminal 51 is inserted into the bulge portion 49a to fill the terminal accommodating hole 50. It is enclosed in the lump R. A recess 51a is formed on the inner surface of the high voltage terminal 51, and a window 52 is formed on the outer wall of the bulge 49a so as to face the recess 51a. Further, a creeping discharge prevention cylindrical portion 49b that surrounds the window 52 projects from the outer peripheral surface of the case 49.
高圧端子５１の外端に２次コイル４８の出力側
が接続され、その２次コイル４８の入力側は１次
コイル４６の入力側に接続される。またケース４
９の開口部には、電源と１次コイル４６の入力側
との間を接続する第１低圧端子５３1と、１次コ
イル４６の出力側とハウジング本体２の外周面に
固定のイグナイタユニツト５４（第２図）との間
を接続する第２低圧端子５３2とがそれらの基端
部を前記合成樹脂塊Ｒ中に封入して設けられる。 The output side of the secondary coil 48 is connected to the outer end of the high voltage terminal 51, and the input side of the secondary coil 48 is connected to the input side of the primary coil 46. Also case 4
9, a first low voltage terminal 531 for connecting the power supply and the input side of the primary coil 46, and an igniter unit 54 fixed to the output side of the primary coil 46 and the outer peripheral surface of the housing body 2. A second low-voltage terminal 53 2 (FIG. 2) is provided with its base end portions encapsulated in the synthetic resin mass R.
点火コイル３３は、以下に述べるようにコイル
収容空間Ｓに配設される。即ち、第１、第２図に
示すように鉄心３４の第１、第２横材３６1，３
６2を駆動軸６の接線方向に向け、また第２横材
３６2の外面をハウジング本体２の底部に突設さ
れた支承突起５５に支承させ、さらに高圧端子５
１をハウジング本体２の開口部上方に位置させ、
さらにまた第６図に示すように鉄心３４における
第１、第２縦材３５1，３５2のシム４１および第
２横材３６2、したがつて押え板３９をハウジン
グ本体２内壁の上、下部取付面２ａ，２ｂにそれ
ぞれ当接させるものである。 The ignition coil 33 is arranged in the coil housing space S as described below. That is, as shown in FIGS. 1 and 2, the first and second cross members 36 1 and 3 of the iron core 34
6 2 is oriented in the tangential direction of the drive shaft 6, and the outer surface of the second cross member 36 2 is supported on a support protrusion 55 protruding from the bottom of the housing body 2, and the high voltage terminal 5
1 above the opening of the housing body 2,
Moreover , as shown in FIG. They are brought into contact with the mounting surfaces 2a and 2b, respectively.
ハウジング本体２の両取付面２ａ，２ｂにはそ
れぞれ各２個のねじ挿通孔５６が形成されてお
り、各ねじ挿通孔５６に挿通された取付ねじ５７
を鉄心３４の各ねじ孔４３に螺着し、これにより
点火コイル３３がハウジング本体２に固定され
る。 Two screw insertion holes 56 are formed in each of the mounting surfaces 2a and 2b of the housing body 2, and a mounting screw 57 is inserted into each screw insertion hole 56.
are screwed into each screw hole 43 of the iron core 34, thereby fixing the ignition coil 33 to the housing body 2.
ハウジング本体２の外周面に突出する各取付ね
じ５７の頭部は第５，６図に示すように防水用液
状シーラント５８により被覆される。 The head of each mounting screw 57 protruding from the outer peripheral surface of the housing body 2 is covered with a waterproof liquid sealant 58 as shown in FIGS. 5 and 6.
このように鉄心３４の三辺、即ち両縦材３５1，
３５2および第２横材３６2をケース４９外に露出
させると共にハウジング本体２に接触させると、
その鉄心３４の放熱性が良好となる。また両縦材
３５1，３５2および第２横材３６2のねじ孔４３
に、ハウジング本体２を貫通する取付ねじ５７を
螺着して点火コイル３３をハウジング本体２に取
付けると、点火コイル３３に取付けるための支柱
等をハウジング本体２に設ける必要がなく、点火
コイル３３の取付構造が簡素化される。 In this way, the three sides of the iron core 34, that is, both vertical members 35 1 ,
35 2 and the second cross member 36 2 are exposed outside the case 49 and brought into contact with the housing body 2,
The heat dissipation of the iron core 34 is improved. Also, the screw holes 43 of both vertical members 35 1 , 35 2 and the second horizontal member 36 2
If the ignition coil 33 is attached to the housing body 2 by screwing the mounting screw 57 that passes through the housing body 2, there is no need to provide a support or the like on the housing body 2 for attaching the ignition coil 33. The mounting structure is simplified.
さらに鉄心３３における長い両横材３６1，３
６2を駆動軸６の接線方向に向けるので、ハウジ
ング１の軸方向長さを短縮することができる。 Furthermore, both long horizontal members 36 1 , 3 in the iron core 33
6 2 is oriented in the tangential direction of the drive shaft 6, the axial length of the housing 1 can be shortened.
さらにまた、鉄心３３の幅の広い第１横材３６
１に両コイル４６，４８が巻装されてそれらはハ
ウジング本体２の軸方向に長く、且つハウジング
本体２の半径方向に短くなるような長円形をな
し、またケース４９を軸受２２の上方においてシ
グナルロータ２１の外周面に近接させ、さらにケ
ース４９の下方においては鉄心３４の第２横材３
６2を軸受２２の外輪２２ａに近接させるので、
ハウジング本体２の半径方向への拡大が極力抑制
されている。 Furthermore, the first horizontal member 36 of the iron core 33 has a wide width.
Both coils 46 and 48 are wound around the housing body 2 and have an oval shape that is long in the axial direction of the housing body 2 and short in the radial direction of the housing body 2. The second cross member 3 of the iron core 34 is placed close to the outer peripheral surface of the rotor 21 and further below the case 49.
6 2 is brought close to the outer ring 22a of the bearing 22, so
Expansion of the housing body 2 in the radial direction is suppressed as much as possible.
このようにハウジング１はその軸方向および半
径方向において小型化が図られている。 In this way, the housing 1 is made smaller in its axial and radial directions.
第１図に示すように、中心電極３２はキヤツプ
５に埋設された導電筒５９内に導電性ばね６０を
介して保持されており、その導電筒５９にキヤツ
プ５に埋設された導電棒６１の一端が接続され
る。導電棒６１の他端に形成された導電筒６１ａ
はキヤツプ５内に開口し、その導電筒６１ａ内に
導電性ばね６２を介して中心電極３２と同一構成
の導電子６３が保持され、これによりキヤツプ５
をハウジング本体２の開口部に被せたとき、導電
子６３が点火コイル３３における高圧端子５１の
凹部５１ａに突当て接続され、その接続状態はば
ね６２の弾発力で導電子６３が高圧端子５１に向
けて付勢されることにより確実に維持される。 As shown in FIG. 1, the center electrode 32 is held in a conductive cylinder 59 embedded in the cap 5 via a conductive spring 60, and a conductive rod 61 buried in the cap 5 is held in the conductive cylinder 59. One end is connected. A conductive tube 61a formed at the other end of the conductive rod 61
is opened in the cap 5, and a conductive element 63 having the same structure as the center electrode 32 is held in the conductive cylinder 61a via a conductive spring 62, thereby opening the cap 5.
When the conductive element 63 is placed over the opening of the housing body 2, the conductive element 63 is brought into contact with the recess 51a of the high voltage terminal 51 in the ignition coil 33. It is reliably maintained by being biased towards.
このように高圧端子５１と中心電極３２間がキ
ヤツプ５に埋設された導電棒６１およびその導電
棒６１に設けられた導電子６３を介して接続され
るので、両部材５１，３２間の接続路の長さが短
縮されて配線構造が簡素化される。また導電子６
３と高圧端子５１間の接続は突当て接続であるか
ら、キヤツプ５をハウジング本体２に取付けると
同時に両部材５１，６３間の接続が行なわれ、そ
の接続作業が極めて容易となる。 In this way, the high voltage terminal 51 and the center electrode 32 are connected via the conductive rod 61 embedded in the cap 5 and the conductive element 63 provided on the conductive rod 61, so that a connection path between both members 51 and 32 is established. The length of the wiring is shortened and the wiring structure is simplified. Also conductive electron 6
Since the connection between the cap 5 and the high voltage terminal 51 is a butt connection, the connection between the two members 51 and 63 is made at the same time as the cap 5 is attached to the housing body 2, making the connection work extremely easy.
さらに中心電極３２と導電子６３を同一構成に
すると、導電子６３を特別に作製する必要がなく
なるので、その作製工数およびコストを全て省く
ことができる。 Furthermore, if the center electrode 32 and the conductive electron 63 have the same configuration, there is no need to specially manufacture the conductive electron 63, so that the manufacturing man-hours and costs can be completely eliminated.
次にこの実施例の作用について説明する。機関
を運転して駆動軸６を回転すると、遠心進角機構
Ｇを介しロータ軸１４、したがつてシグナルロー
タ２１が回転する。しそしてシグナルロータ２１
の各突起２１ａがパルスジエネレータＰにおける
鉄心２６の先端部ｅに対向すると、マグネツト２
５、鉄心２６、シグナルロータ２１、ロータ軸１
４、磁気伝達板２９、内輪２２ｂ、支持金具２４
およびマグネツト２５の間に磁束が形成され、次
いでシグナルロータ２１の突起２１ａと鉄心２６
の先端部ｅが食い違うことによつて上記磁束が変
化するのでピツクアツプコイル２７にパルス状の
電圧が発生する。その電圧はイグナルイタユニツ
ト５４を点火コイル３３の１次コイル４６を流れ
る１次電流を遮断するように動作させるので、２
次コイル４８に高電圧が発生し、その高電圧は高
圧端子５１、導電子６３、導電棒６１、中心電極
３２および配電電極３０を介して該当する側電極
３１に分配され、点火プラグをスパークさせるも
のである。 Next, the operation of this embodiment will be explained. When the engine is operated and the drive shaft 6 is rotated, the rotor shaft 14 and therefore the signal rotor 21 are rotated via the centrifugal advance mechanism G. And signal rotor 21
When each protrusion 21a faces the tip e of the iron core 26 in the pulse generator P, the magnet 2
5, iron core 26, signal rotor 21, rotor shaft 1
4. Magnetic transmission plate 29, inner ring 22b, support fittings 24
A magnetic flux is formed between the signal rotor 21 and the magnet 25, and then the protrusion 21a of the signal rotor 21 and the iron core 26
Since the magnetic flux changes as the tips e of the two discs shift, a pulse-like voltage is generated in the pickup coil 27. That voltage operates the ignal iterator unit 54 to cut off the primary current flowing through the primary coil 46 of the ignition coil 33;
Next, a high voltage is generated in the coil 48, and the high voltage is distributed to the corresponding side electrodes 31 via the high voltage terminal 51, conductive element 63, conductive rod 61, center electrode 32 and power distribution electrode 30, and sparks the ignition plug. It is something.
この点火時期は、駆動軸６の回転が遠心進角機
構Ｇを介してロータ軸１４に伝達されてシグナル
ロータ２１の回転速度が早められるので、、シグ
ナルロータ２１の突起２１ａと鉄心２６の先端部
ｅの対向から次の対向までの時間が短縮されるこ
とにより進角される。また、真空進角機構Ｖによ
つて軸受２２の内輪２２ｂが回転させられるの
で、これによつても点火時期が進角される。 This ignition timing is determined by the rotation of the drive shaft 6 being transmitted to the rotor shaft 14 via the centrifugal advance mechanism G and the rotation speed of the signal rotor 21 being accelerated. The angle is advanced by shortening the time from one facing position to the next facing position. Further, since the inner ring 22b of the bearing 22 is rotated by the vacuum advance mechanism V, the ignition timing is also advanced by this.
この場合高圧端子５１の凹部５１ａの周囲は筒
部４９ｂにより囲繞されており、その筒部４９ｂ
の内、外周面により沿面距離が長くなつているの
で、高圧端子５１のケース４９外周面に沿う沿面
放電が防止される。また駆動軸６が軸受７，８に
より両持ち式に支持されているので、駆動軸６が
心振れを起こすことがない。 In this case, the recess 51a of the high voltage terminal 51 is surrounded by a cylindrical portion 49b;
Since the creepage distance is longer on the outer peripheral surface, creeping discharge along the outer peripheral surface of the case 49 of the high voltage terminal 51 is prevented. Further, since the drive shaft 6 is supported by the bearings 7 and 8 in a double-sided manner, the drive shaft 6 does not run out.
さらにコイル抜止め板６４、マグネツト２５お
よび鉄心２６が支持金具２４の支持板２４ｂに両
止めねじ７１により一体に結着されているので、
コイル抜止め板６４、マグネツト２５および鉄心
２６が支持板２４ｂから外れることがなく、また
ピツクアツプコイル２７が鉄心２６から抜けるこ
ともない。 Furthermore, since the coil retaining plate 64, magnet 25, and iron core 26 are integrally connected to the support plate 24b of the support fitting 24 by both setscrews 71,
The coil retaining plate 64, the magnet 25, and the iron core 26 will not come off the support plate 24b, and the pick-up coil 27 will not come off the iron core 26.
Ｃ 考案の効果
本考案によれば、鉄心の先端部を抜止め板の挿
通孔に貫通させてピツクアツプコイルを抜止め板
と鉄心のストツパ間に挾着し、また抜止め板、鉄
心およびマグネツトを支持金具に重合してそれら
四部材を一体に結着したので、コイル抜止め板、
マグネツトおよび鉄心が支持金具から外れること
がなく、またピツクアツプコイルが鉄心より抜け
ることもない。したがつてピツクアツプコイルと
鉄心間および鉄心とマグネツト間の取付構造ぎ強
固である。C. Effects of the invention According to the invention, the tip of the core is passed through the insertion hole of the retaining plate, the pick-up coil is clamped between the retaining plate and the stopper of the core, and the retaining plate, the core, and the magnet are Since the four components were bonded together by superposition to the support fittings, the coil removal prevention plate,
The magnet and the iron core will not come off the support fittings, and the pick-up coil will not come off the iron core. Therefore, the mounting structure between the pick-up coil and the iron core and between the iron core and the magnet is strong.
その上、ピツクアツプコイルの抜止めおよび鉄
心とマグネツトとの結着を同一工程で行えるの
で、それらの組立を容易に行い、延いてはパルス
ジエネレータの組立工数を低減してその製造コス
トを安価にすることができる。 Furthermore, since the pick-up coil can be prevented from coming out and the iron core and the magnet can be bonded together in the same process, it is easy to assemble them, which in turn reduces the number of steps required to assemble the pulse generator and lowers its manufacturing cost. can do.
図面は本考案の一実施例を示し、第１図は本考
案を適用した配電器・点火コイル組立体の縦断正
面図、、第２図は第１図−線断面図、第２Ａ
図はパルスジエネレータの部分斜視図、第３図は
点火コイルの要部を破断した側面図で第２図矢
視図に相当し、第４図は鉄心の斜視図、第５図は
組立体の第１図Ｖ矢視図、第６図は第５図−
線断面図である。
Ｐ……パルスジエネレータ、ｅ……先端部、２
１……シグナルロータ、２１ａ……突起、２４…
…支持金具、２５……マグネツト、２６……鉄
心、、２６ａ……ストツパとしての取付板、２７
……ピツクアツプコイル、６４……コイル抜止め
板。
The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of a power distributor/ignition coil assembly to which the present invention is applied, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG.
The figure is a partial perspective view of the pulse generator, Figure 3 is a side view with main parts of the ignition coil cut away and corresponds to the arrow view in Figure 2, Figure 4 is a perspective view of the iron core, and Figure 5 is the assembly. Figure 1 is a view in the direction of the V arrow, Figure 6 is a view in Figure 5-
FIG. P... Pulse generator, e... Tip, 2
1...Signal rotor, 21a...Protrusion, 24...
...Supporting metal fitting, 25...Magnet, 26...Iron core, 26a...Mounting plate as a stopper, 27
...Pick-up coil, 64...Coil removal prevention plate.
Claims (1)
グナルロータの外周に、鉄心をそれの先端部が前
記突起に対向し得るように配設し、該鉄心にピツ
クアツプコイルを巻装して前記先端部を該ピツク
アツプコイルより突出させ、前記鉄心の基端部に
マグネツトを結着した内燃機関用点火装置のパル
スジエネレータにおいて、コイル抜止め板の一端
部に形成された挿通孔に前記鉄心の先端部を貫通
させて前記ピツクアツプコイルを該鉄心に設けら
れたストツパと該コイル抜止め板間に挾着し、前
記コイル抜止め板の他端部、前記鉄心の基端部お
よび前記マグネツトを支持金具に重合してそれら
四部材を一体に結着したことを特徴とする、内燃
機関用点火装置のパルスジエネレータ。 An iron core is disposed on the outer periphery of a signal rotor, which has protrusions corresponding to the number of engine cylinders on its outer circumferential surface, so that the tip thereof can face the protrusions, and a pick-up coil is wound around the iron core, so that the tip of the signal rotor In a pulse generator for an ignition system for an internal combustion engine, which has a part protruding from the pick-up coil and a magnet bonded to the base end of the core, the tip of the core is inserted into an insertion hole formed at one end of the coil retaining plate. The pick-up coil is inserted between a stopper provided on the core and the coil retaining plate, and the other end of the coil retaining plate, the proximal end of the core, and the magnet are attached to the supporting metal fitting. 1. A pulse generator for an ignition device for an internal combustion engine, characterized in that the four components are bonded together by polymerization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7195785U JPH0311420Y2 (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7195785U JPH0311420Y2 (en) | 1985-05-15 | 1985-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61186767U JPS61186767U (en) | 1986-11-21 |
| JPH0311420Y2 true JPH0311420Y2 (en) | 1991-03-19 |
Family
ID=30609919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7195785U Expired JPH0311420Y2 (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0311420Y2 (en) |
-
1985
- 1985-05-15 JP JP7195785U patent/JPH0311420Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61186767U (en) | 1986-11-21 |
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