JPH0729753A - Ignition coil - Google Patents
Ignition coilInfo
- Publication number
- JPH0729753A JPH0729753A JP5170418A JP17041893A JPH0729753A JP H0729753 A JPH0729753 A JP H0729753A JP 5170418 A JP5170418 A JP 5170418A JP 17041893 A JP17041893 A JP 17041893A JP H0729753 A JPH0729753 A JP H0729753A
- Authority
- JP
- Japan
- Prior art keywords
- zener diode
- bobbin
- ignition coil
- holder
- supporting
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は内燃機関の点火用高電
圧の発生に用いられる点火コイルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition coil used for generating a high voltage for ignition of an internal combustion engine.
【０００２】[0002]
【従来の技術】一般に内燃機関のスパークプラグに直接
装着されるイグニションコイルの一例を図３乃至図８に
示す。図において、１はイグニションコイル本体、２は
イグニションコイルとスパークプラグとを接続するジョ
イント部で、スパークプラグは図示Ａの部分に接続され
る。３は二次コイル３ａが巻回されている二次ボビン、
４は一次コイル４ａが巻回されている一次ボビン、５は
一次コイルの両端、並びに二次コイルの一端が接続され
たコネクタ、６は二次ボビン３に取り付けられたホルダ
であり、ケース８に収納され、樹脂で固定される。図６
は回路接続図であり、端子１０ａはＧＮＤ、端子１０ｂ
は電源、端子１０ｃはパワートランジスタ１１に接続さ
れる。また、端子７はジョイント部２を介してスパーク
プラグへ接続される。９は二次コイル３ａの一端に介在
されたツェナーダイオードである。図７、図８は二次ボ
ビン３およびツェナーダイオード９の接続を示す詳細図
であり、１２、１３はホルダ６と一体的に設けられ、ツ
ェナーダイオード９のリード線が半田付け、溶接等によ
って接続されるターミナルである。2. Description of the Related Art An example of an ignition coil which is generally mounted directly on a spark plug of an internal combustion engine is shown in FIGS. In the figure, 1 is an ignition coil main body, 2 is a joint portion that connects the ignition coil and the spark plug, and the spark plug is connected to the portion A in the figure. 3 is a secondary bobbin around which the secondary coil 3a is wound,
Reference numeral 4 is a primary bobbin around which the primary coil 4a is wound, 5 is a connector to which both ends of the primary coil and one end of the secondary coil are connected, and 6 is a holder attached to the secondary bobbin 3. It is stored and fixed with resin. Figure 6
Is a circuit connection diagram, terminal 10a is GND, terminal 10b
Is connected to the power source, and the terminal 10c is connected to the power transistor 11. Further, the terminal 7 is connected to the spark plug via the joint portion 2. Reference numeral 9 is a Zener diode interposed at one end of the secondary coil 3a. 7 and 8 are detailed views showing the connection between the secondary bobbin 3 and the Zener diode 9, 12 and 13 are integrally provided with the holder 6, and the lead wire of the Zener diode 9 is connected by soldering, welding, or the like. It is a terminal that will be used.
【０００３】次に動作について説明する。まず、図示し
ない制御回路により決定された通電開始時期においてパ
ワートランジスタ１１がＯＮされて一次コイル４ａに一
次電流が流れます。次に図示しない制御回路により決定
された点火時期においてパワートランジスタ１１がＯＦ
Ｆされて二次コイルに高電圧が誘起され、図示しないス
パークプラグに放電現象が生じて図示しない気筒内の混
合気に着火される。ここで、ツェナーダイオード９はパ
ワートランジスタ１１がＯＮされた際に端子７に発生す
る電圧を抑制するものであり、一次コイル４ａ側に接続
されてもよい。Next, the operation will be described. First, the power transistor 11 is turned on at the start of energization determined by the control circuit (not shown), and the primary current flows through the primary coil 4a. Next, at the ignition timing determined by the control circuit (not shown), the power transistor 11 is turned off.
Then, a high voltage is induced in the secondary coil, a discharge phenomenon occurs in a spark plug (not shown), and an air-fuel mixture in a cylinder (not shown) is ignited. Here, the Zener diode 9 suppresses the voltage generated at the terminal 7 when the power transistor 11 is turned on, and may be connected to the primary coil 4a side.
【０００４】[0004]
【発明が解決しようとする課題】上述のような従来装置
においては、ツェナーダイオード９のリード線をターミ
ナル１２、１３に接続する際の位置決めおよび保持が困
難であり、きわめて作業性が低いものである。このた
め、生産性が悪くコスト高となったり、また、品質的に
もばらつきが大きく、接続不良が生じると発熱が生じて
焼損に至るという問題点を有していた。In the conventional device as described above, it is difficult to position and hold the lead wire of the Zener diode 9 to the terminals 12 and 13, and the workability is extremely low. . For this reason, there is a problem that productivity is low and cost is high, and there is a large variation in quality, and if a connection failure occurs, heat is generated and a burnout occurs.
【０００５】この発明は上記のような問題点を解消する
ためになされたもので、安価で、品質の優れた点火コイ
ルを得る事を目的とする。The present invention has been made to solve the above problems, and an object thereof is to obtain an inexpensive ignition coil of excellent quality.
【０００６】[0006]
【課題を解決するための手段】この発明に係る点火コイ
ルは、ボビンと一体的に設けられた支持部に、上記巻線
と電気的に接続された電気部品を保持するものである。An ignition coil according to the present invention holds an electric component electrically connected to the above-mentioned winding on a support portion integrally provided with a bobbin.
【０００７】[0007]
【作用】この発明に係る点火コイルにおいては、ボビン
と一体的に設けられた支持部に、電気部品を位置決め、
保持できるので、リード線の接続作業が簡単、かつ確実
に行える。In the ignition coil according to the present invention, the electric parts are positioned on the supporting portion which is integrally provided with the bobbin,
Since it can be held, lead wire connection work can be performed easily and reliably.
【０００８】[0008]
実施例１．以下、この発明の一実施例を図１乃至図２に
ついて説明する。従来装置と同一もしくは相当する部分
には従来装置と同一の符号を付して説明を省略する。図
において、１４は二次ボビン３に一体的に取り付けられ
たホルダであり、ツェナーダイオード９を支持する支持
部１４ａと、このツェナーダイオード９を係止するよう
弾性を有してなる突起部１４ｂとが一体に成形されてい
る。Example 1. An embodiment of the present invention will be described below with reference to FIGS. The same or corresponding parts as those of the conventional device are designated by the same reference numerals and the description thereof will be omitted. In the figure, 14 is a holder integrally attached to the secondary bobbin 3, and includes a support portion 14a for supporting the Zener diode 9 and a protrusion portion 14b having elasticity for locking the Zener diode 9. Are integrally molded.
【０００９】上述のように構成されたものにおいては、
ツェナーダイオード９を接続するに際して、まず、ツェ
ナーダイオード９をホルダ１４の支持部１４ａに装着
し、突起部１４ｂの弾性力により係止する。次に、この
状態でツェナーダイオード９のリード線をターミナル１
２、１３に半田付け、溶接等によって接続する。In the configuration as described above,
When connecting the Zener diode 9, first, the Zener diode 9 is mounted on the support portion 14a of the holder 14 and locked by the elastic force of the protrusion 14b. Next, in this state, connect the lead wire of the Zener diode 9 to the terminal 1
2 and 13 are connected by soldering, welding or the like.
【００１０】実施例２．なお、上記一実施例ではツェナ
ーダイオードを支持するものについて説明したが、他
に、例えば点火ノイズを低減するための抵抗等を支持す
るものであってもよく、要は必要な電気部品を確実に支
持することが本案の特徴である。Embodiment 2. In addition, although the Zener diode is supported in the above-mentioned one embodiment, it may be supported by, for example, a resistor for reducing ignition noise. Supporting is a feature of this plan.
【００１１】実施例３．また、上記一実施例では支持部
１４ａを二次ボビン３とは別部材であるホルダ１４に設
けたが、二次ボビン３と一体に設けたものであってもよ
いことは言うまでもない。Embodiment 3. Further, although the support portion 14a is provided in the holder 14 which is a separate member from the secondary bobbin 3 in the above-described embodiment, it goes without saying that it may be provided integrally with the secondary bobbin 3.
【００１２】[0012]
【発明の効果】以上のように、この発明によれば、電気
部品を支持部に保持した状態で接続作業が行えるため、
電気部品の位置決めが容易で、確実に半田付け、溶接等
の接続作業が行えるものであり、生産性が高く、安価で
品質の安定した点火コイルが得られるものである。As described above, according to the present invention, since the connection work can be performed while the electric parts are held on the supporting portion,
The electric parts can be easily positioned, and the connecting work such as soldering and welding can be surely performed, and the ignition coil having high productivity, low cost and stable quality can be obtained.
【図１】ａは、この発明の一実施例による二次ボビンを
示す正面図であり、ｂ、ｃはターミナル１３を示す詳細
図出ある。1 is a front view showing a secondary bobbin according to an embodiment of the present invention, and b and c are detailed views showing a terminal 13. FIG.
【図２】図１の実施例を示す平面図である。2 is a plan view showing the embodiment of FIG. 1. FIG.
【図３】従来装置の外観を示す平面図である。FIG. 3 is a plan view showing an appearance of a conventional device.
【図４】図３に示す従来装置の外観を示す正面図であ
る。FIG. 4 is a front view showing the appearance of the conventional device shown in FIG.
【図５】図３に示す従来装置の内部構成を示す側面図で
ある。5 is a side view showing an internal configuration of the conventional apparatus shown in FIG.
【図６】図３に示す従来装置の電気的接続関係を示す回
路図である。6 is a circuit diagram showing an electrical connection relationship of the conventional device shown in FIG.
【図７】図３に示す従来装置の二次ボビンを示す正面図
である。FIG. 7 is a front view showing a secondary bobbin of the conventional apparatus shown in FIG.
【図８】図７に示す従来装置の二次ボビンを示す平面図
である。FIG. 8 is a plan view showing a secondary bobbin of the conventional apparatus shown in FIG.
１ イグニションコイル本体 ３ 二次ボビン ３ａ 二次コイル ４ 一次ボビン ４ａ 一次コイル ９ ツェナーダイオード １２ ターミナル １３ ターミナル １４ ホルダ １４ａ 支持部 １４ｂ 突起部 1 Ignition coil body 3 Secondary bobbin 3a Secondary coil 4 Primary bobbin 4a Primary coil 9 Zener diode 12 Terminal 13 Terminal 14 Holder 14a Support part 14b Projection part
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成６年３月２３日[Submission date] March 23, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図１[Name of item to be corrected] Figure 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１】ａは、この発明の一実施例による二次ボビンを
示す正面図であり、ｂ、ｃはターミナル１３を示す詳細
図であり、ｄはホルダ１４を示す斜視図である。FIG. 1 is a front view showing a secondary bobbin according to an embodiment of the present invention, b and c are detailed views showing a terminal 13, and d is a perspective view showing a holder 14.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図１[Name of item to be corrected] Figure 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図１】 [Figure 1]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小岩 満 姫路市千代田町840番地 三菱電機株式会 社姫路製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuru Koiwa 840 Chiyoda-cho, Himeji City Mitsubishi Electric Corporation Himeji Works
Claims (1)
回された巻線、上記ボビンと一体的に設けられた支持
部、この支持部に保持され、上記巻線と電気的に接続さ
れた電気部品を備えた点火コイル。1. A bobbin made of an insulating material, a winding wound around the bobbin, a support portion integrally provided with the bobbin, and a support portion held by the support portion and electrically connected to the winding wire. Ignition coil with electrical components.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17041893A JP3363955B2 (en) | 1993-07-09 | 1993-07-09 | Ignition coil |
| DE19944424161 DE4424161C2 (en) | 1993-07-09 | 1994-07-08 | Ignition coil arrangement for an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17041893A JP3363955B2 (en) | 1993-07-09 | 1993-07-09 | Ignition coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0729753A true JPH0729753A (en) | 1995-01-31 |
| JP3363955B2 JP3363955B2 (en) | 2003-01-08 |
Family
ID=15904562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17041893A Expired - Lifetime JP3363955B2 (en) | 1993-07-09 | 1993-07-09 | Ignition coil |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3363955B2 (en) |
| DE (1) | DE4424161C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1162366A1 (en) * | 2000-06-06 | 2001-12-12 | Federal-Mogul Ignition Srl | Ignition coil for motor vehicles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63143385A (en) * | 1986-12-05 | 1988-06-15 | Hitachi Ltd | Ignition coil for internal combustion engine |
| DE69103553T2 (en) * | 1990-03-08 | 1995-03-02 | Nippon Denso Co | Ignition coil for internal combustion engines. |
| IT220769Z2 (en) * | 1990-12-27 | 1993-11-08 | Magneti Marelli Spa | IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE. |
| DE4318130A1 (en) * | 1993-06-01 | 1994-12-08 | Bosch Gmbh Robert | Ignition coil for internal combustion engines |
-
1993
- 1993-07-09 JP JP17041893A patent/JP3363955B2/en not_active Expired - Lifetime
-
1994
- 1994-07-08 DE DE19944424161 patent/DE4424161C2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4424161A1 (en) | 1995-01-19 |
| JP3363955B2 (en) | 2003-01-08 |
| DE4424161C2 (en) | 1999-04-01 |
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