JPH0127583Y2 - - Google Patents
Info
- Publication number
- JPH0127583Y2 JPH0127583Y2 JP1983191323U JP19132383U JPH0127583Y2 JP H0127583 Y2 JPH0127583 Y2 JP H0127583Y2 JP 1983191323 U JP1983191323 U JP 1983191323U JP 19132383 U JP19132383 U JP 19132383U JP H0127583 Y2 JPH0127583 Y2 JP H0127583Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- noise suppressor
- conductive
- bolt
- plug
- 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 13
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
- Spark Plugs (AREA)
Description
【考案の詳細な説明】 本考案は内燃機関用点火装置に関する。[Detailed explanation of the idea] The present invention relates to an ignition device for an internal combustion engine.
従来、点火コイルにおける２次コイルの出力側
端末と点火プラグの端子部とを高圧コードにより
接続し、また点火プラグ内、または高圧コードと
前記端子部との接続部にノイズサプレツサ抵抗を
介装して点火プラグにおける中心電極と接地電極
間の放電等に起因した電波雑音を防止するように
した点火装置が知られている。しかしながら前記
高圧コードは耐電圧性、耐候性等を考慮して、一
般に数年で新品と交換しなければならないので、
不経済である。 Conventionally, the output side terminal of the secondary coil in the ignition coil and the terminal section of the spark plug are connected by a high voltage cord, and a noise suppressor resistor is inserted inside the spark plug or at the connection section between the high voltage cord and the terminal section. Ignition devices are known that are designed to prevent radio noise caused by discharge between a center electrode and a ground electrode in a spark plug. However, the high-voltage cord generally has to be replaced with a new one every few years due to voltage resistance, weather resistance, etc.
It is uneconomical.
そこで前記問題を解決すべく、点火プラグのプ
ラグキヤツプ内に配設したノイズサプレツサ抵抗
を点火コイルと点火プラグとの接続に用いて高圧
コードを省略し得るようにした点火装置は既に公
知（特開昭51−137041号公報参照）であるが、こ
の公知のものでは、点火プラグ端子に対する接続
部材を兼ねるコイルばねと、鉄心との間にノイズ
サプレツサ抵抗を弾力的に挟持するようにしてい
るので、ノイズサプレツサ抵抗に対する支持が不
安定であり、例えばエンジンの振動等によつてノ
イズサプレツサ抵抗が鉄心より一時的に離れて、
点火プラグと点火コイル間が一時的に遮断されて
しまう虞れがある。 In order to solve this problem, an ignition system is already known (Japanese Unexamined Patent Application Publication No. 2003-101010) in which a noise suppressor resistor disposed inside the plug cap of the ignition plug is used to connect the ignition coil and the ignition plug, thereby omitting the high-voltage cord. 51-137041), but in this known device, the noise suppressor resistor is elastically sandwiched between the coil spring, which also serves as a connection member for the spark plug terminal, and the iron core. If the support for the noise suppressor is unstable, for example due to engine vibration, the noise suppressor resistor may temporarily separate from the iron core.
There is a risk that the connection between the spark plug and the ignition coil may be temporarily cut off.
本考案は、従来装置の上記問題を全て解決し得
る構造簡単な内燃機関用点火装置を提供すること
を目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide an ignition device for an internal combustion engine with a simple structure that can solve all of the above-mentioned problems of conventional devices.
そしてこの目的を達成するために本考案は、点
火プラグの端子部を覆うように該プラグに被着さ
れるプラグキヤツプ内に、鉄心とそれを囲繞する
点火コイルとを収容固定してなる、内燃機関用点
火装置において、前記プラグキヤツプの内壁に、
一端部が前記鉄心の内端部に対向し且つ他端部が
前記端子部に着脱可能に接続される導電性接続部
材を固着し、この接続部材の前記一端部には、ノ
イズサプレツサ抵抗の一端を嵌入させる凹部を設
け、そのノイズサプレツサ抵抗の他端部が嵌入さ
れる凹部を有する導電性ボルトを前記鉄心の内端
部に螺着すると共に、該内端部とボルト間に、前
記点火コイルにおける２次コイルの出力側端末に
連なる導電板を挟着したことを特徴とする。 In order to achieve this object, the present invention provides an internal combustion engine, which has an iron core and an ignition coil surrounding it fixedly housed in a plug cap that is attached to the spark plug so as to cover the terminal portion of the spark plug. In the engine ignition system, on the inner wall of the plug cap,
A conductive connecting member having one end facing the inner end of the iron core and the other end removably connected to the terminal portion is fixed, and one end of the noise suppressor resistor is attached to the one end of the connecting member. A conductive bolt having a recess into which the other end of the noise suppressor resistor is inserted is screwed onto the inner end of the iron core, and two parts of the ignition coil are connected between the inner end and the bolt. It is characterized by sandwiching a conductive plate connected to the output side terminal of the next coil.
以下、図面により本考案の一実施例について説
明すると、１はフエノール樹脂よりなる絶縁性筒
状プラグキヤツプで、その内部は、環状隔壁部２
とその隔壁部２に嵌着された導電性袋ナツト３と
により、コイル収容筒部４及びプラグ取付筒部５
に区画される。プラグ取付筒部５は点火プラグ６
の碍子部７に被着され、その筒部５により碍子部
７端面より突出する端子部８が覆われている。端
子部８には導電性中空ボルト９が抜差可能に嵌合
され、そのボルト９の環状溝１０に第２図に示す
ように平面Ｄ字形をなすばね１１を嵌めてその一
部を環状溝１０底部の開口１２より中空ボルト９
内に突出させ、その突出部を端子部８周面の係合
溝１３に係合させることにより中空ボルト９が端
子部８に抜止め保持される。前記中空ボルト９は
袋ナツト３に螺着されており、その両者３，９は
互いに協働して本考案の導電性接続部材Ｊを構成
している。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes an insulating cylindrical plug cap made of phenolic resin;
and the conductive cap nut 3 fitted to the partition wall 2, the coil housing cylinder part 4 and the plug mounting cylinder part 5 are connected to each other.
It is divided into The plug mounting cylinder part 5 is the spark plug 6
The terminal portion 8 protruding from the end face of the insulator portion 7 is covered by the cylindrical portion 5 . A conductive hollow bolt 9 is removably fitted into the terminal portion 8, and a spring 11 having a D-shape in plan is fitted into an annular groove 10 of the bolt 9 as shown in FIG. 10 Hollow bolt 9 from the opening 12 at the bottom
By protruding inward and engaging the protruding portion with the engagement groove 13 on the circumferential surface of the terminal portion 8, the hollow bolt 9 is held in the terminal portion 8 without being removed. The hollow bolt 9 is screwed onto the cap nut 3, and both 3 and 9 cooperate with each other to constitute the conductive connecting member J of the present invention.
コイル収容筒部４内には点火コイル１４が収容
される。その点火コイル１４は絶縁性ボビン１５
と、そのボビン１５のコイル収容筒部４開口側に
巻装された単層状１次コイル１６と、その１次コ
イル１６に隣接してボビン１５に巻装された多層
状２次コイル１７と、ボビン１５の巻心１８内に
嵌合された鉄心としてのフエライトコア１９とを
備え、そのフエライトコア１９の、袋ナツト３と
対向する内端面には導電性ボルト２１が螺着さ
れ、その導電性ボルト２１とフエライトコア１９
間には、２次コイル１７の出力側端末に接続され
た導電板２０が挟着される。 An ignition coil 14 is housed within the coil housing cylinder portion 4 . The ignition coil 14 is an insulating bobbin 15
, a single-layer primary coil 16 wound around the opening side of the coil housing tube 4 of the bobbin 15 , and a multi-layer secondary coil 17 wound around the bobbin 15 adjacent to the primary coil 16 . A ferrite core 19 as an iron core is fitted into a winding core 18 of a bobbin 15, and a conductive bolt 21 is screwed onto the inner end surface of the ferrite core 19 facing the cap nut 3. Bolt 21 and ferrite core 19
A conductive plate 20 connected to the output terminal of the secondary coil 17 is sandwiched between them.
ボルト２１の頂面と、それと対向する袋ナツト
３の頂面にはそれぞれ凹部２２，２３が形成さ
れ、両凹部２２，２３にはノイズサプレツサ抵抗
２４の両端部がそれぞれ嵌合されている。これに
より点火コイル１４における２次コイル１７の出
力側端末がノイズサプレツサ抵抗２４を介して点
火プラグ６の端子部８に電気的に接続される。 Recesses 22 and 23 are respectively formed on the top surface of the bolt 21 and the top surface of the cap nut 3 facing thereto, and both ends of a noise suppressor resistor 24 are fitted into both the recesses 22 and 23, respectively. As a result, the output side terminal of the secondary coil 17 in the ignition coil 14 is electrically connected to the terminal portion 8 of the spark plug 6 via the noise suppressor resistor 24.
コイル収容筒部４内には、エポキシ樹脂等の熱
硬化性合成樹脂２５が注封され、これにより点火
コイル１４及びフエライトコア１９が前記筒部４
内に固定される。この注封時前記筒部４の開口に
は、１次コイル１６の入力側端末に接続される端
子板２６が配設され、同様に固定される。 A thermosetting synthetic resin 25 such as an epoxy resin is potted inside the coil housing cylinder part 4, so that the ignition coil 14 and the ferrite core 19 are sealed in the cylinder part 4.
fixed inside. At the time of potting, a terminal plate 26 connected to the input terminal of the primary coil 16 is disposed in the opening of the cylindrical portion 4 and similarly fixed.
端子板２６の、コイル収容筒部４からの突出部
には、図示しない電源に連なる低圧コード２７が
接続される。 A low-voltage cord 27 connected to a power source (not shown) is connected to a protruding portion of the terminal plate 26 from the coil housing cylinder portion 4 .
コイル収容筒部４の開口は、一端を低圧コード
２７外周面に、他端を前記筒部４外周面にそれぞ
れ嵌着したゴム製防水筒２８により、水密に保持
される。またプラグ取付筒部５内には一端をその
筒部５外周面に、他端を碍子部７外周面にそれぞ
れ嵌着したゴム製防水筒２９により水密に保持さ
れる。 The opening of the coil housing tube 4 is held watertight by a rubber waterproof tube 28 whose one end is fitted onto the outer peripheral surface of the low voltage cord 27 and the other end is fitted onto the outer peripheral surface of the tube 4. The plug mounting cylinder 5 is held watertight by a rubber waterproof cylinder 29 which has one end fitted onto the outer circumferential surface of the cylinder part 5 and the other end fitted onto the outer circumferential surface of the insulator part 7, respectively.
上記構成において、点火コイル１４の２次コイ
ル１７に発生した高電圧は導電板２０→ボルト２
１→ノイズサプレツサ抵抗２４→袋ナツト３→中
空ボルト９を経て点火プラグ６の端子部８に導か
れ、中心電極３０と接地電極３１間に放電が発生
する。 In the above configuration, the high voltage generated in the secondary coil 17 of the ignition coil 14 is transferred from the conductive plate 20 to the volt 2
1→noise suppressor resistor 24→cap nut 3→hollow bolt 9, and is led to the terminal portion 8 of the spark plug 6, and a discharge is generated between the center electrode 30 and the ground electrode 31.
以上のように本考案によれば、点火プラグの端
子部を覆うように該プラグに被着されるプラグキ
ヤツプ内に、鉄心とそれを囲繞する点火コイルと
を収容固定してなる、内燃機関用点火装置におい
て、前記プラグキヤツプの内壁に、一端部が前記
鉄心の内端部に対向し且つ他端部が前記端子部に
着脱可能に接続される導電性接続部材を固着し、
この接続部材の前記一端部には、ノイズサプレツ
サ抵抗の一端を嵌入させる凹部を設け、そのノイ
ズサプレツサ抵抗の他端部が嵌入される凹部を有
する導電性ボルトを前記鉄心の内端部に螺着する
と共に、該内端部とボルト間に、前記点火コイル
における２次コイルの出力側端末に連なる導電板
を挟着したので、点火コイルと点火プラグ間をノ
イズサプレツサ抵抗を介して支障なく接続するこ
とができて、その間に高圧コードを特別に設ける
必要はなく、そのコードのメンテナンスに要する
時間及び交換費用を省くことができる。しかも上
記ノイズサプレツサ抵抗は、プラグキヤツプに固
定の前記接続部材及び導電性ボルトの各凹部によ
つて両端が強固に挟持固定されることから、エン
ジンの振動等によつても妄りにガタつくことなく
常に該接続部材及び導電性ボルトに密着すること
ができ、従つてエンジン振動等が大きいような場
合でも点火プラグと点火コイル間の導通状態を常
に的確に保持することができる。また前記導電性
ボルトは、上記ノイズサプレツサ抵抗に対する位
置決め保持手段と、該抵抗を２次コイルの出力側
端末に接続する導電板を鉄心に固定するための固
着手段とに兼用されるから、それだけ構造簡単で
コストダウンに寄与し得る。 As described above, according to the present invention, a spark plug for an internal combustion engine is provided, in which an iron core and an ignition coil surrounding the core are housed and fixed in a plug cap that is attached to the spark plug so as to cover the terminal portion of the spark plug. In the ignition device, a conductive connecting member is fixed to the inner wall of the plug cap, one end of which faces the inner end of the iron core, and the other end of which is removably connected to the terminal;
A recess into which one end of the noise suppressor resistor is fitted is provided at the one end of the connecting member, and a conductive bolt having a recess into which the other end of the noise suppressor resistor is fitted is screwed onto the inner end of the iron core. Since a conductive plate connected to the output side terminal of the secondary coil in the ignition coil is sandwiched between the inner end portion and the bolt, the ignition coil and the spark plug can be connected without any trouble via the noise suppressor resistor. Therefore, there is no need to specially provide a high voltage cord between the two, and the time and replacement cost required for maintenance of the cord can be saved. Moreover, since both ends of the noise suppressor resistor are firmly clamped and fixed by the connecting member fixed to the plug cap and the respective recesses of the conductive bolt, the noise suppressor resistor does not unnecessarily rattle even due to engine vibrations, etc. It can be brought into close contact with the connecting member and the conductive bolt, and therefore, even when the engine vibration is large, the state of conduction between the ignition plug and the ignition coil can be accurately maintained at all times. Furthermore, since the conductive bolt is used both as a means for positioning and holding the noise suppressor resistor and as a fixing means for fixing the conductive plate that connects the resistor to the output terminal of the secondary coil to the iron core, the structure is simpler. This can contribute to cost reduction.
図面は本考案の一実施例を示すもので、第１図
は全体の縦断正面図、第２図は第１図−線断
面図である。
１…プラグキヤツプ、６…点火プラグ、８…端
子部、１４…点火コイル、１７…２次コイル、１
９…鉄心としてのフエライトコア、２０…導電
板、２１…導電性ボルト、２２，２３…凹部、２
４…ノイズサプレツサ抵抗、Ｊ…接続部材。
The drawings show one embodiment of the present invention, in which FIG. 1 is a longitudinal sectional front view of the whole, and FIG. 2 is a sectional view taken along the line of FIG. 1. 1... Plug cap, 6... Spark plug, 8... Terminal section, 14... Ignition coil, 17... Secondary coil, 1
9... Ferrite core as iron core, 20... Conductive plate, 21... Conductive bolt, 22, 23... Recess, 2
4...Noise suppressor resistor, J...Connection member.
Claims (1)
６に被着されるプラグキヤツプ１内に、鉄心１９
とそれを囲繞する点火コイル１４とを収容固定し
てなる、内燃機関用点火装置において、前記プラ
グキヤツプ１の内壁に、一端部が前記鉄心１９の
内端部に対向し且つ他端部が前記端子部８に着脱
可能に接続される導電性接続部材Ｊを固着し、こ
の接続部材Ｊの前記一端部には、ノイズサプレツ
サ抵抗２４の一端を嵌入させる凹部２３を設け、
そのノイズサプレツサ抵抗２４の他端部が嵌入さ
れる凹部２２を有する導電性ボルト２１を前記鉄
心１９の内端部に螺着すると共に、該内端部とボ
ルト２１間に、前記点火コイル１４における２次
コイル１７の出力側端末に連なる導電板２０を挟
着したことを特徴とする、内燃機関用点火装置。 An iron core 19 is disposed within the plug cap 1 which is attached to the spark plug 6 so as to cover the terminal portion 8 of the spark plug 6.
In the ignition device for an internal combustion engine, the ignition coil 14 surrounding the plug cap 1 is housed and fixed. A conductive connecting member J that is removably connected to the terminal portion 8 is fixed, and a recess 23 into which one end of the noise suppressor resistor 24 is fitted is provided at the one end of the connecting member J,
A conductive bolt 21 having a recess 22 into which the other end of the noise suppressor resistor 24 is fitted is screwed onto the inner end of the iron core 19, and between the inner end and the bolt 21, two An ignition device for an internal combustion engine, characterized in that a conductive plate 20 connected to the output side terminal of a secondary coil 17 is sandwiched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19132383U JPS6098288U (en) | 1983-12-12 | 1983-12-12 | Ignition system for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19132383U JPS6098288U (en) | 1983-12-12 | 1983-12-12 | Ignition system for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6098288U JPS6098288U (en) | 1985-07-04 |
| JPH0127583Y2 true JPH0127583Y2 (en) | 1989-08-18 |
Family
ID=30412030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19132383U Granted JPS6098288U (en) | 1983-12-12 | 1983-12-12 | Ignition system for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6098288U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4590699B2 (en) * | 2000-07-31 | 2010-12-01 | 株式会社デンソー | Ignition coil device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51137041A (en) * | 1975-05-23 | 1976-11-26 | Automob Antipollut & Saf Res Center | A jamming wave preventing ignition coil |
| JPS5254674U (en) * | 1975-10-17 | 1977-04-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58130087U (en) * | 1982-12-24 | 1983-09-02 | 日本特殊陶業株式会社 | Radio noise prevention device for spark ignition engines without a power distributor |
-
1983
- 1983-12-12 JP JP19132383U patent/JPS6098288U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51137041A (en) * | 1975-05-23 | 1976-11-26 | Automob Antipollut & Saf Res Center | A jamming wave preventing ignition coil |
| JPS5254674U (en) * | 1975-10-17 | 1977-04-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6098288U (en) | 1985-07-04 |
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