JP3023864B2 - High pressure cord device - Google Patents

High pressure cord device

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Publication number
JP3023864B2
JP3023864B2 JP5333744A JP33374493A JP3023864B2 JP 3023864 B2 JP3023864 B2 JP 3023864B2 JP 5333744 A JP5333744 A JP 5333744A JP 33374493 A JP33374493 A JP 33374493A JP 3023864 B2 JP3023864 B2 JP 3023864B2
Authority
JP
Japan
Prior art keywords
voltage
discharge
discharge tube
trigger
cord
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
Application number
JP5333744A
Other languages
Japanese (ja)
Other versions
JPH07192842A (en
Inventor
孝 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yazaki Corp filed Critical Yazaki Corp
Priority to JP5333744A priority Critical patent/JP3023864B2/en
Publication of JPH07192842A publication Critical patent/JPH07192842A/en
Application granted granted Critical
Publication of JP3023864B2 publication Critical patent/JP3023864B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、自動車エンジンの点火
プラグなどに高電圧パルスを供給するための高圧コード
装置に関し、特に点火プラグのくすぶりを解消して確実
な点火を行なうための高圧コード装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-pressure cord device for supplying a high-voltage pulse to a spark plug or the like of an automobile engine, and more particularly to a high-pressure cord device for eliminating smoldering of a spark plug and performing reliable ignition. About.

【0002】[0002]

【従来の技術】一般に使用される高電圧パルス供給装置
では、点火プラグに印加される電圧は、点火プラグの放
電開始電圧に達するまで徐々にしか上昇しない。このた
め、高圧パルス供給装置の発生電圧が点火プラグの放電
開始電圧に達するまでの時間、点火プラグは放電できず
にくすぶりが起こることがあった。そこで、点火プラグ
のくすぶりを発生させずに確実にエンジンの点火を行な
うために、高圧電源コードと点火プラグに接続するため
の出力端子との間に高放電電圧のトリガー用放電管を挿
入して、トリガー用放電管の放電により急激に点火プラ
グの放電開始電圧まで立ち上がった安定した電圧を供給
すると同時に確実に点火プラグでのスパーク放電を発生
させる方法が採用されている。そしてこのようなトリガ
ー用放電管を組み込んだ高圧コード装置は例えば図2に
示すように、高電圧パルス供給装置1の端末に接続する
ための高圧電源コード2に、トリガー用放電管3と点火
プラグ5に接続するための高圧パルス出力端子4とを直
列に結合して構成されている。
2. Description of the Related Art A commonly used high-voltage pulse supply device
Then, the voltage applied to the spark plug
It only rises gradually until it reaches the power-on voltage. others
The voltage generated by the high-voltage pulse supply device
The spark plug cannot discharge until the starting voltage is reached.
Sometimes smoldering occurred. Therefore, in order to reliably ignite the engine without causing smoldering of the spark plug, insert a discharge tube for triggering a high discharge voltage between the high-voltage power cord and the output terminal for connecting to the spark plug. Ignited by the discharge of the trigger discharge tube
A method of supplying a stable voltage that has risen to the discharge starting voltage of the spark plug and at the same time reliably generating a spark discharge at the spark plug. As shown in FIG. 2, for example, a high-voltage cord device incorporating such a discharge tube for trigger is connected to a high-voltage power supply cord 2 for connecting to a terminal of a high-voltage pulse supply device 1, and a discharge tube 3 for trigger and a spark plug. 5 and a high-voltage pulse output terminal 4 to be connected to the terminal 5 in series.

【0003】このような高圧コード装置に組み込まれて
いるトリガー用放電管は、放電開始電圧が点火プラグの
放電開始電圧より高いことが必要とされ、一般に15k
V以上の放電開始電圧を有する放電管が用いられてい
る。このような放電管は通常図3に示すような放電開始
電圧特性を有しており、定常運転時には残留イオンなど
が存在するために安定した放電開始電圧を維持するもの
である。しかし、初期放電開始電圧は放電管内に残留イ
オンや残留電荷がないために大幅に高いことがしばしば
あり、例えば30kVを越える場合がある。従って、ト
リガー用放電管を組み込んだ高圧コード装置の作動を開
始するときには、高電圧パルス供給装置1の発生電圧よ
り放電管の初期放電開始電圧が高い状態となって放電管
が動作しないことがあり、点火プラグへの電圧の印加が
起こらずにエンジンなどの失火につながる場合があっ
た。
[0003] The trigger discharge tube incorporated in such a high-voltage cord device is required to have a discharge start voltage higher than a discharge start voltage of a spark plug, and is generally 15 k.
A discharge tube having a discharge starting voltage of V or more is used. Such a discharge tube usually has a discharge starting voltage characteristic as shown in FIG. 3, and maintains a stable discharge starting voltage due to the presence of residual ions and the like during steady operation. However, the initial discharge starting voltage is often significantly higher due to the absence of residual ions and residual charges in the discharge tube, and may exceed, for example, 30 kV. Therefore, when the operation of the high-voltage cord device incorporating the trigger discharge tube is started, the discharge tube may not operate because the initial discharge start voltage of the discharge tube is higher than the voltage generated by the high-voltage pulse supply device 1. In some cases, application of voltage to the ignition plug does not occur, leading to misfire of the engine or the like.

【0004】[0004]

【発明が解決しようとする課題】そこで本発明は、高圧
コード装置に組み込まれた放電管の放電開始電圧が高圧
パルス供給装置の発生電圧より高くなり、トリガー用放
電管の放電が起こらない場合が状況によってあったとし
ても、確実に点火プラグなどへ高電圧パルスを供給する
ことができ、エンジン失火などを引き起こす心配のない
高圧コード装置を提供することを目的とした。
SUMMARY OF THE INVENTION Accordingly, the present invention provides a high voltage cord device in which the discharge starting voltage of a discharge tube is high.
Becomes higher than the voltage generated by the pulse supply device, and
Depending on the situation, the discharge of the tube may not occur.
Even, it is possible to reliably supply a high voltage pulse to an ignition plug, and aims to provide a high voltage cord device without fear of causing such as an engine misfire.

【0005】[0005]

【課題を解決するための手段】上記のような目的を達成
することができる本発明の高圧コード装置は、高電圧パ
ルス供給装置の端末に接続される高圧電源コードと高圧
パルス出力端子との間にトリガー用放電管を直列に接続
してなる高圧コード装置において、該トリガー用放電管
と並列に設けられ、該トリガー用放電管の放電開始電圧
の最小値より高くかつ前記高電圧パルス供給装置の発生
電圧より低い所定電圧以上の電圧が印加されたとき導通
する定電圧導通開始手段を備えたことを特徴とするもの
である。
According to the present invention, there is provided a high-voltage power supply apparatus comprising a high-voltage power supply cord connected to a terminal of a high-voltage pulse supply apparatus and a high-voltage pulse output terminal. A high-voltage cord device in which a trigger discharge tube is connected in series to the trigger discharge tube, the discharge start voltage of the trigger discharge tube being provided in parallel with the trigger discharge tube.
Of the high voltage pulse supply device higher than the minimum value of
Conducts when a voltage higher than a predetermined voltage lower than the voltage is applied
It is characterized in that it comprises a constant voltage starting conduction means.

【0006】[0006]

【作用】上記のように構成された本発明の高圧コード装
置は、トリガー用放電管の放電開始電圧の最小値より高
くかつ高電圧パルス供給装置の発生電圧より低い所定電
圧以上の電圧が印加されたとき導通する定電圧導通開始
手段をトリガー用放電管と並列に設けているので、トリ
ガ−用放電管の放電開始電圧が高電圧パルス供給装置の
発生電圧より高くなり、トリガー用放電管の放電が起こ
らない場合がある作動開始時においては、定電圧導通開
始手段に所定電圧以上の電圧である高電圧パルス供給装
置の発生電圧が印加されるため、定電圧導通開始手段が
導通する。従って、定電圧導通開始手段を介して高圧パ
ルス供給装置の発生電圧が点火プラグに供給されるので
確実に失火が防止される。そしてトリガー用放電管の放
電開始電圧が最小値となる定常運転時においては、トリ
ガー用放電管が放電開始電圧の最小値で放電を行うた
め、所定値以上の電圧が定電圧導通開始手段に印加され
ることがない。従って、定電圧導通開始手段は導通せ
ず、トリガー用放電管のみが作動して、高圧パルス電圧
を点火プラグに確実に供給するものである。
According to the high-voltage cord device of the present invention having the above-mentioned structure, the high-voltage cord device has a voltage higher than the minimum value of the firing voltage of the trigger discharge tube.
And a predetermined voltage lower than the voltage generated by the high-voltage pulse supply device.
Start of constant voltage conduction that conducts when a voltage higher than the voltage is applied
Since the means is provided in parallel with the discharge tube for trigger,
The discharge starting voltage of the gar discharge tube is higher than that of the high-voltage pulse supply device.
The voltage becomes higher than the generated voltage, and the discharge of the trigger discharge tube occurs.
At the start of operation that may not be possible,
A high-voltage pulse supply device having a voltage higher than a predetermined voltage
Since the generated voltage is applied to the
Conduct. Therefore, the voltage generated by the high-voltage pulse supply device is supplied to the spark plug via the constant-voltage conduction start means, so that misfire is reliably prevented. And discharge of discharge tube for trigger
During steady-state operation when the power starting voltage is
The discharge tube for gar discharges at the minimum value of the firing voltage.
Voltage is applied to the constant voltage conduction start means.
Never. Therefore, the constant voltage conduction start means does not conduct.
Instead, only the trigger discharge tube operates to reliably supply a high-voltage pulse voltage to the ignition plug.

【0007】[0007]

【実施例】本発明の高圧コード装置は図1に示すように
構成されており、図における従来技術の高圧コード装置
と同様な機能を有する部材には、図2と同じ符号を用い
て表示してある。ここで6は定電圧導通開始手段であ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A high-pressure cord apparatus according to the present invention is constructed as shown in FIG. 1, and members having the same functions as those of the prior art high-pressure cord apparatus in the figure are denoted by the same reference numerals as those in FIG. It is. Here, reference numeral 6 denotes constant voltage conduction start means.

【0008】かかる本発明の高圧コード装置において用
いられるトリガー用放電管は、図3に示すような通常の
放電開始電圧特性を有するものであるが、その放電開始
電圧の最小値が点火プラグの放電開始電圧より高く、か
つ高電圧パルス供給装置の出力電圧より低いものであれ
ばよく、通常15〜20kV程度の最小放電開始電圧を
有するものが好ましく用いられる。
The trigger discharge tube used in the high-pressure cord apparatus of the present invention has a normal discharge start voltage characteristic as shown in FIG. 3, and the minimum value of the discharge start voltage is the discharge of the spark plug. Any voltage higher than the starting voltage and lower than the output voltage of the high-voltage pulse supply device may be used, and a device having a minimum discharge starting voltage of about 15 to 20 kV is preferably used.

【0009】また本発明の高圧コード装置においてトリ
ガー用放電管と並列に設けられる定電圧導通開始手段と
しては、例えばアバランシェダイオードを用いることが
できる。そしてここでの導通開始電圧、すなわちアバラ
ンシェ降伏電圧は、トリガー用放電管の放電開始電圧の
最小値より高く、かつ高電圧パルス供給装置の発生電圧
より低いものであればよく、通常22〜27kV程度の
アバランシェ降伏電圧を有するものが好ましく用いられ
る。上述した構成の高圧コード装置の動作を以下説明す
る。作動開始時にトリガー用放電管内に残留イオンや残
留電荷がないことにより、トリガー用放電管の放電開始
電圧が高電圧パルス供給装置の発生電圧を越え、トリガ
ー用放電管の放電が起きない場合があると、アバランシ
ェダイオードには高電圧パルス供給装置の発生電圧が印
加される。この発生電圧は、トリガー用放電管の放電開
始電圧の最小値より高くかつ高電圧パルス供給装置の発
生電圧より低い値に定められたアバランシェ降伏電圧以
上の電圧である。従って、アバランシェダイオードは導
通して、高電圧パルス供給装置の発生電圧がアバランシ
ェダイオードを介して点火プラグへ供給される。このた
め、点火プラグの失火を防止することができる。 そし
て、トリガー用放電管の放電開始電圧が最小値となる定
常作動時は、トリガー用放電管が放電開始電圧の最小値
で放電を行うため、アバランシェダイオードにはアバラ
ンシェ降伏電圧以上の電圧が印加されることがない。従
って、トリガー用放電管の放電により得た安定した電圧
のみが点火プラグに印加される。
In the high-voltage cord device of the present invention, for example, an avalanche diode can be used as the constant voltage conduction start means provided in parallel with the trigger discharge tube. The conduction start voltage here, that is, the avalanche breakdown voltage may be higher than the minimum value of the discharge start voltage of the trigger discharge tube and lower than the generated voltage of the high voltage pulse supply device, and is usually about 22 to 27 kV. Those having the avalanche breakdown voltage are preferably used. The operation of the high-pressure cord device having the above configuration will be described below.
You. At the start of operation, residual ions and residual
Discharge of trigger discharge tube due to absence of residual charge
When the voltage exceeds the voltage generated by the high-voltage pulse supply device, trigger
Avalanche if the discharge tube does not discharge
The voltage generated by the high-voltage pulse supply device is
Be added. This generated voltage is the discharge opening of the trigger discharge tube.
Start the high voltage pulse supply device higher than the minimum value of the starting voltage
Avalanche breakdown voltage lower than the raw voltage
Above voltage. Therefore, avalanche diodes are
And the generated voltage of the high-voltage pulse supply device
It is supplied to the ignition plug via a diode. others
Therefore, misfiring of the spark plug can be prevented. Soshi
The discharge starting voltage of the trigger discharge tube becomes the minimum value.
During normal operation, the trigger discharge tube is set to the minimum value of the firing voltage.
Avalanche diode
No voltage higher than the unche breakdown voltage is applied. Obedience
The stable voltage obtained by the discharge of the trigger discharge tube
Only the spark plug is applied to the spark plug.

【0010】[0010]

【発明の効果】本発明の高圧コード装置は、トリガー用
放電管の放電開始電圧の最小値より高くかつ高電圧パル
ス供給装置の発生電圧より低い所定電圧以上の電圧が印
加されたとき導通する定電圧導通開始手段をトリガー用
放電管と並列に設けているので、トリガ−用放電管の放
電開始電圧が高電圧パルス供給装置の発生電圧より高く
なり、トリガー用放電管の放電が起こらない場合がある
作動開始時においては、定電圧導通開始手段に所定電圧
以上の電圧である高電圧パルス供給装置の発生電圧が印
加されるため、定電圧導通開始手段が導通する。従っ
て、定電圧導通開始手段を介して高圧パルス供給装置の
発生電圧が点火プラグに供給される。そしてトリガー用
放電管の放電開始電圧が最小値となる定常運転時におい
ては、トリガー用放電管が放電開始電圧の最小値で放電
を行うため、所定値以上の電圧が定電圧導通開始手段に
印加されることがない。従って、定電圧導通開始手段は
導通せず、トリガー用放電管のみが作動して、高圧パル
ス電圧を点火プラグに確実に供給するものであるので、
高圧コード装置に組み込まれたトリガー用放電管の放電
開始電圧が高圧パルス供給装置の発生電圧より高くな
り、トリガー用放電管の放電が起こらない場合があった
としても順調な高圧パルスを出力でき、自動車などのエ
ンジンの運転開始時における失火などを確実に防止でき
る効果がある。
The high-pressure cord device according to the present invention is used for a trigger.
High voltage pulses higher than the minimum discharge starting voltage of the discharge tube
Voltage higher than a specified voltage lower than the voltage generated by the
For triggering constant voltage conduction start means that conducts when applied
Since it is provided in parallel with the discharge tube, the discharge of the trigger discharge tube
Power start voltage is higher than the voltage generated by the high-voltage pulse supply device
Discharge of the trigger discharge tube may not occur
At the start of operation, a predetermined voltage is applied to the constant voltage conduction start means.
The voltage generated by the high-voltage pulse supply device,
Therefore, the constant voltage conduction start means conducts. Follow
Of the high voltage pulse supply device through the constant voltage conduction start means.
The generated voltage is supplied to the spark plug. And for the trigger
When the steady operation is performed when the discharge starting voltage of the discharge tube becomes the minimum value,
The trigger tube discharges at the minimum value of the firing voltage.
Is performed, the voltage equal to or higher than the predetermined value
It is not applied. Therefore, the constant voltage conduction start means is
No electrical connection, only the trigger discharge tube operates,
Supply voltage to the spark plug,
Discharge of discharge tube for trigger incorporated in high-voltage cord device
The starting voltage is higher than the voltage generated by the high-voltage pulse supply device.
In some cases, the discharge of the trigger discharge tube did not occur.
In this case, a high-voltage pulse can be output smoothly, and there is an effect that a misfire or the like at the start of operation of an engine of an automobile or the like can be reliably prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の高圧コード装置の例の構成図である。FIG. 1 is a configuration diagram of an example of a high-pressure cord device according to the present invention.

【図2】従来技術の高圧コード装置の例の構成図であ
る。
FIG. 2 is a configuration diagram of an example of a conventional high-pressure cord device.

【図3】トリガー用放電管の放電周波数と放電開始電圧
との関係を示す放電開始電圧特性のグラフである。
FIG. 3 is a graph of a discharge start voltage characteristic showing a relationship between a discharge frequency of a trigger discharge tube and a discharge start voltage.

【符号の説明】[Explanation of symbols]

1 高電圧パルス供給装置 2 高圧電源コード 3 トリガー用放電管 4 高圧パルス出力端子 5 点火プラグ 6 定電圧導通開始手段 DESCRIPTION OF SYMBOLS 1 High voltage pulse supply device 2 High voltage power cord 3 Trigger discharge tube 4 High voltage pulse output terminal 5 Spark plug 6 Constant voltage conduction start means

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 高電圧パルス供給装置の端末に接続され
る高圧電源コードと高圧パルス出力端子との間にトリガ
ー用放電管を直列に接続してなる高圧コード装置におい
て、該トリガー用放電管と並列に設けられ、該トリガー
用放電管の放電開始電圧の最小値より高くかつ前記高電
圧パルス供給装置の発生電圧より低い所定電圧以上の電
圧が印加されたとき導通する定電圧導通開始手段を備え
ことを特徴とする高圧コード装置。
1. A high-voltage cord device in which a trigger discharge tube is connected in series between a high-voltage power supply cord connected to a terminal of a high-voltage pulse supply device and a high-voltage pulse output terminal. The trigger is provided in parallel
Higher than the minimum value of the discharge starting voltage of the discharge tube for
Voltage higher than a predetermined voltage lower than the voltage generated by the pressure pulse supply device.
A constant voltage conduction start means that conducts when pressure is applied.
High voltage cord and wherein the a.
【請求項2】 前記定電圧導通開始手段、アバランシ
ェダイオードであり、該アバランシェダイオードのアバ
ランシェ降伏電圧は、前記トリガー用放電管の放電開始
電圧の最小値より高くかつ前記高電圧パルス供給装置の
発生電圧より低い電圧であることを特徴とする請求項1
に記載の高圧コード装置。
Wherein said constant voltage starting conduction means, Ri Oh avalanche diode, Abba of the avalanche diode
The Lanche breakdown voltage is the discharge start voltage of the trigger discharge tube.
Higher than the minimum value of the voltage and
Claim 1, which is a lower than the generated voltage Voltage
2. The high-pressure cord device according to claim 1.
JP5333744A 1993-12-27 1993-12-27 High pressure cord device Expired - Lifetime JP3023864B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5333744A JP3023864B2 (en) 1993-12-27 1993-12-27 High pressure cord device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5333744A JP3023864B2 (en) 1993-12-27 1993-12-27 High pressure cord device

Publications (2)

Publication Number Publication Date
JPH07192842A JPH07192842A (en) 1995-07-28
JP3023864B2 true JP3023864B2 (en) 2000-03-21

Family

ID=18269481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5333744A Expired - Lifetime JP3023864B2 (en) 1993-12-27 1993-12-27 High pressure cord device

Country Status (1)

Country Link
JP (1) JP3023864B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60009055T2 (en) * 2000-07-28 2005-02-17 Federal-Mogul Ignition S.R.L. Ignition coil for motor vehicles

Also Published As

Publication number Publication date
JPH07192842A (en) 1995-07-28

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