JPS6137822Y2 - - Google Patents
Info
- Publication number
- JPS6137822Y2 JPS6137822Y2 JP1149880U JP1149880U JPS6137822Y2 JP S6137822 Y2 JPS6137822 Y2 JP S6137822Y2 JP 1149880 U JP1149880 U JP 1149880U JP 1149880 U JP1149880 U JP 1149880U JP S6137822 Y2 JPS6137822 Y2 JP S6137822Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- ignition coil
- coil device
- mounting structure
- cylinder head
- 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
- 239000012811 non-conductive material Substances 0.000 claims description 5
- 239000000615 nonconductor Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Regulation Of General Use Transformers (AREA)
Description
【考案の詳細な説明】
本考案は、エンジン用点火コイルの取付構造に
係り、特にエンジンハウジングに形成された孔内
に配置され、点火プラグに直接的に接続される点
火コイル装置の取付構造に係る。[Detailed Description of the Invention] The present invention relates to a mounting structure for an ignition coil for an engine, and particularly to a mounting structure for an ignition coil device that is placed in a hole formed in an engine housing and directly connected to a spark plug. Related.
エンジンの各気筒の点火プラグ毎に個別の点火
コイル装置を有し、その点火コイル装置が各々エ
ンジンハウジングに形成された孔内に配置されて
点火プラグに直接的に接続されるよう構成された
点火システムが考えられている。この点火システ
ムにあつては、各気筒毎に点火コイルを必要とす
るが、配電器及びそれと点火プラグとを接続する
高圧コードを省略でき、また配電器に於ける漏電
や通信機に電波障害を与えることを回避できると
いう利点を有している。 An ignition device having a separate ignition coil device for each spark plug in each cylinder of the engine, and configured such that each ignition coil device is disposed in a hole formed in the engine housing and directly connected to the spark plug. system is being considered. Although this ignition system requires an ignition coil for each cylinder, it can omit the power distributor and the high-voltage cord that connects it to the spark plug, and it also prevents electrical leakage in the power distributor and radio wave interference in communication devices. It has the advantage of avoiding giving.
また、点火コイル装置がエンジンハウジングの
孔内に収納されていることにより点火コイル装置
の保持や耐水シールが比較的容易に、また確実に
行われ、また点火コイル装置を機械的な破損より
保護することができる。しかし、エンジンハウジ
ングは一般に金属によつて構成され、導電性を有
しているため、点火コイル装置に通電が行われた
時、その電流によつて発生する磁界によりその周
りのエンジンハウジングに前記孔を取囲むべく誘
導電流が流れるようになり、この誘導電流により
点火コイル装置の性能が低下するという不具合を
生じる。 Additionally, since the ignition coil device is housed within the hole in the engine housing, it is relatively easy to hold and seal the ignition coil device against water, and it also protects the ignition coil device from mechanical damage. be able to. However, since the engine housing is generally made of metal and has electrical conductivity, when the ignition coil device is energized, the magnetic field generated by the current causes the hole in the engine housing around it to be formed. An induced current flows around the ignition coil, and this induced current causes a problem in that the performance of the ignition coil device is degraded.
本考案は上述の如き不具合にかんがみ、点火コ
イル装置がエンジンハウジングの孔内に収納され
ていてもエンジンハウジングに誘導電流が流れな
いようにし、それによる点火コイル装置の性能の
低下を回避すべく改良された点火コイル装置の取
付構造を提供することを目的としている。 In view of the above-mentioned problems, this invention has been improved to prevent induced current from flowing into the engine housing even if the ignition coil device is housed in the hole in the engine housing, and to avoid the deterioration in the performance of the ignition coil device. The purpose of this invention is to provide a mounting structure for an ignition coil device.
かかる目的は、本考案によれば、エンジンハウ
ジングに形成された孔内に配置され、点火プラグ
に直接的に接続される点火コイル装置の取付構造
にして、エンジンハウジングが前記孔の近傍に該
孔を周つて形成する環状導電経路をしや断すべく
前記孔を形成する筒状壁の少なくとも一部が非導
電体により構成されていることを特徴とする点火
コイル装置の取付構造によつて達成される。 According to the present invention, the present invention provides a mounting structure for an ignition coil device that is disposed in a hole formed in an engine housing and directly connected to a spark plug, and the engine housing has a mounting structure in which the ignition coil device is disposed in a hole formed in an engine housing and is connected directly to a spark plug. This is achieved by a mounting structure for an ignition coil device, characterized in that at least a part of the cylindrical wall forming the hole is made of a non-conductive material in order to cut off the annular conductive path formed around the hole. be done.
かかる構成によれば、前記非導電体によつて誘
導電流の流れがしや断され、エンジンハウジング
に誘導電流の流れが生じることがない。 According to this configuration, the flow of induced current is interrupted by the non-conductor, and no induced current flow occurs in the engine housing.
以下に添付の図を用いて本考案を実施例につい
て詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.
第１図は本考案による点火コイル装置の取付構
造の一つの実施例を示す断面図、第２図は本考案
による取付構造が実施されたエンジンのシリンダ
ヘツドカバーを示す断面図、第３図は第２図の線
−に沿う断面図である。図に於いて、１はエ
ンジンのシリンダヘツドを、２は前記シリンダヘ
ツド上に取付けられたシリンダヘツドカバーを各
各示している。シリンダヘツド１とシリンダヘツ
ドカバー２は点火プラグ３と点火コイル装置４を
収納する孔５，６が形成されている。点火プラグ
３はそれのねじ部７にてシリンダヘツド１に設け
られたねじ孔８内にねじ込まれてシリンダヘツド
１に固定されている。点火コイル装置４はその一
端にてコネクタ９によつて点火プラグ３に接続さ
れ、また他端にてゴムキヤツプ１０によりシリン
ダヘツドカバー２に固定されている。ゴムキヤツ
プ１０には点火コイル装置４へ電流を供給するた
めの電源コード１１が貫通している。 FIG. 1 is a cross-sectional view showing one embodiment of the mounting structure for the ignition coil device according to the present invention, FIG. 2 is a cross-sectional view showing an engine cylinder head cover in which the mounting structure according to the present invention is implemented, and FIG. FIG. 2 is a sectional view taken along the line - in FIG. 2; In the figure, reference numeral 1 indicates a cylinder head of the engine, and reference numeral 2 indicates a cylinder head cover mounted on the cylinder head. The cylinder head 1 and the cylinder head cover 2 are formed with holes 5 and 6 in which a spark plug 3 and an ignition coil device 4 are housed. The spark plug 3 is fixed to the cylinder head 1 by screwing its threaded portion 7 into a screw hole 8 provided in the cylinder head 1. The ignition coil device 4 is connected at one end to the spark plug 3 by a connector 9, and is fixed to the cylinder head cover 2 by a rubber cap 10 at the other end. A power cord 11 for supplying current to the ignition coil device 4 passes through the rubber cap 10.
孔６は、第２図に良く示されているごとく、筒
状壁１２によつて形成されており、この筒状壁１
２は複数個のリブ１３によつて支えられている。
筒状壁１２にはそれの母線に沿つて延びるスリツ
ト１４が複数個形成されている。また、スリツト
１４にはエンジンオイル等が孔６内に侵入するこ
とを防止するためにゴムのごとき非導電体１５が
はめ込まれている。 As clearly shown in FIG. 2, the hole 6 is formed by a cylindrical wall 12.
2 is supported by a plurality of ribs 13.
A plurality of slits 14 are formed in the cylindrical wall 12 and extend along its generatrix. Further, a non-conductive material 15 such as rubber is fitted into the slit 14 to prevent engine oil or the like from entering the hole 6.
スリツト１４はその空隙により非導電体を構成
するから、上述のごとくスリツト１４が設けられ
ていることにより筒状壁１２が部分的に非導電体
により構成されたことになり、孔６の近傍に該孔
を周つて延在する環状の導電経路が形成されるこ
とが回避される。このため点火コイル装置４を流
れる電流によつて発生する磁界により筒状壁１２
に発生してその周回りに流れようとする誘導電流
の流れはスリツト１４にてしや断され、筒状壁１
２が環状導電経路となることがなく、この結果、
筒状壁１２に誘導電流が流れることを回避され
る。 Since the slit 14 constitutes a non-conductor due to its void, the provision of the slit 14 as described above means that the cylindrical wall 12 is partially constituted by a non-conductor, and the slit 14 forms a non-conductor in the vicinity of the hole 6. The formation of an annular conductive path extending around the hole is avoided. Therefore, the magnetic field generated by the current flowing through the ignition coil device 4 causes the cylindrical wall 12 to
The flow of induced current that is generated in the cylindrical wall 1 and tries to flow around the cylindrical wall 1 is cut off by the slit 14.
2 does not become a circular conductive path, and as a result,
Induced current is prevented from flowing through the cylindrical wall 12.
第４図は本考案による取付構造を実施されたシ
リンダヘツドカバーの他の一つの実施例を示す断
面図であり、第５図は第４図の線−に沿う断
面図である。かかる実施例の場合、孔６は合成樹
脂等の非導電材料によつて構成された筒状体１６
によつて形成されている。すなわち、この実施例
においては、孔６を形成する筒状壁のすべてが非
導電体により構成されている。この筒状体１６は
シリンダヘツドカバー２と一体に成形された複数
個の支柱１７によつて支持されている。 FIG. 4 is a sectional view showing another embodiment of the cylinder head cover in which the mounting structure according to the present invention is implemented, and FIG. 5 is a sectional view taken along the line - in FIG. 4. In the case of such an embodiment, the hole 6 is a cylindrical body 16 made of a non-conductive material such as synthetic resin.
It is formed by. That is, in this embodiment, the entire cylindrical wall forming the hole 6 is made of a non-conductive material. This cylindrical body 16 is supported by a plurality of supports 17 integrally formed with the cylinder head cover 2.
かかる実施例においても孔６の周りに環状の導
電経路が形成されないことによりシリンダヘツド
カバー２に誘導電流が流れることがない。 In this embodiment as well, since no annular conductive path is formed around the hole 6, no induced current flows in the cylinder head cover 2.
また孔６を形成するシリンダヘツドカバー２の
全体が合成樹脂によつて構成されていても良い。 Further, the entire cylinder head cover 2 forming the hole 6 may be made of synthetic resin.
以上に於いては本考案を特定の実施例について
詳細に説明したが、本考案はこれに限定されるも
のではなく、本考案の範囲内にて種々の実施例が
可能であることは当業者にとつて明らかであろ
う。 Although the present invention has been described above in detail with reference to specific embodiments, the present invention is not limited thereto, and those skilled in the art will appreciate that various embodiments are possible within the scope of the present invention. It would be obvious to
第１図は本考案による点火コイル装置の取付構
造の一つの実施例を示す縦断面図、第２図は本考
案による取付構造を実施されたシリンダヘツドカ
バーを示す断面図、第３図は第２図の線−に
沿う断面図、第４図は本考案による取付構造を実
施されたシリンダヘツドカバーの他の一つの実施
例を示す断面図、第５図は第４図の線−に沿
う断面図である。
１……シリンダヘツド、２……シリンダヘツド
カバー、３……点火プラグ、４……点火コイル装
置、５，６……孔、７……ねじ部、８……ねじ
孔、９……コネクタ、１０……ゴムキヤツプ、１
１……電源コード、１２……環状壁、１３……リ
ブ、１４……スリツト、１５……非導電体、１６
……筒状体、１７……支柱。
FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the mounting structure for an ignition coil device according to the present invention, FIG. 2 is a cross-sectional view showing a cylinder head cover in which the mounting structure according to the present invention is implemented, and FIG. 2 is a cross-sectional view taken along the line in FIG. 2, FIG. 4 is a cross-sectional view showing another embodiment of the cylinder head cover in which the mounting structure according to the present invention is implemented, and FIG. 5 is a cross-sectional view taken along the line in FIG. 4. FIG. DESCRIPTION OF SYMBOLS 1... Cylinder head, 2... Cylinder head cover, 3... Spark plug, 4... Ignition coil device, 5, 6... Hole, 7... Threaded portion, 8... Threaded hole, 9... Connector, 10...Rubber cap, 1
DESCRIPTION OF SYMBOLS 1... Power cord, 12... Annular wall, 13... Rib, 14... Slit, 15... Non-conductor, 16
... Cylindrical body, 17... Support.
Claims (1)
れ、点火プラグに直接的に接続される点火コイル
装置の取付構造にして、エンジンハウジングが前
記孔の近傍に該孔を周つて形成する環状導電経路
をしや断すべく前記孔を形成する筒状壁の少なく
とも一部が非導電体により構成されていることを
特徴とする点火コイル装置の取付構造。 A mounting structure for an ignition coil device disposed in a hole formed in an engine housing and directly connected to a spark plug, wherein the engine housing has an annular conductive path formed around the hole in the vicinity of the hole. 1. A mounting structure for an ignition coil device, characterized in that at least a part of the cylindrical wall forming the hole to be cut is made of a non-conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1149880U JPS6137822Y2 (en) | 1980-01-31 | 1980-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1149880U JPS6137822Y2 (en) | 1980-01-31 | 1980-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56113178U JPS56113178U (en) | 1981-09-01 |
| JPS6137822Y2 true JPS6137822Y2 (en) | 1986-11-01 |
Family
ID=29608107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1149880U Expired JPS6137822Y2 (en) | 1980-01-31 | 1980-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6137822Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608426U (en) * | 1983-06-30 | 1985-01-21 | 小松ゼノア株式会社 | engine cover |
| JPH0676788B2 (en) * | 1984-12-14 | 1994-09-28 | フオルクスウアーゲン・アクチエンゲゼルシヤフト | Spark ignition type internal heat engine ignition device |
-
1980
- 1980-01-31 JP JP1149880U patent/JPS6137822Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56113178U (en) | 1981-09-01 |
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