JPH11118152A - Electric ignition tool - Google Patents
Electric ignition toolInfo
- Publication number
- JPH11118152A JPH11118152A JP9285786A JP28578697A JPH11118152A JP H11118152 A JPH11118152 A JP H11118152A JP 9285786 A JP9285786 A JP 9285786A JP 28578697 A JP28578697 A JP 28578697A JP H11118152 A JPH11118152 A JP H11118152A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- electric igniter
- ignition
- electrode
- electrode pin
- 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.)
- Pending
Links
Landscapes
- Automotive Seat Belt Assembly (AREA)
- Air Bags (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種火工品を点火
するための電気点火具に関するものである。The present invention relates to an electric igniter for igniting various pyrotechnics.
【０００２】[0002]
【従来の技術】瞬時に大きな動力を必要とする装置、例
えば自動車用シートベルトやエアバック、宇宙空間にお
ける各種機器の駆動源としてガス発生器が利用されてい
る。火工品であるガス発生器は、ガス発生剤とそれを燃
焼させるための電気点火具を内蔵している。電気点火具
は、電源につながる発熱抵抗とこれに接する少量の点火
薬剤からなり、点火スイッチをオンにすることにより、
発熱抵抗に電流が流れて発熱し、点火薬剤が発火する。
電気点火具はこのような構造であるから、保管中など、
静電気による電流が発熱抵抗に流れると暴発事故につな
がる。そこで従来は、発熱抵抗の発熱面積を大きくする
ことで発熱を分散させ、静電気エネルギーのような微少
電流では点火薬剤の発火温度まで発熱しないようにして
いた。2. Description of the Related Art Gas generators are used as driving sources for devices requiring instantaneous large power, such as seat belts for automobiles, airbags, and various devices in outer space. The pyrotechnic gas generator has a built-in gas generating agent and an electric igniter for burning the gas generating agent. The electric igniter consists of a heating resistor connected to the power supply and a small amount of ignition agent in contact with it, and by turning on the ignition switch,
An electric current flows through the heating resistor to generate heat, and the ignition agent is ignited.
Since the electric igniter has such a structure,
If a current caused by static electricity flows through the heating resistor, an explosion may occur. Therefore, conventionally, the heat generation is dispersed by increasing the heat generation area of the heat generation resistor so that a small current such as electrostatic energy does not generate heat up to the ignition temperature of the ignition agent.
【０００３】特開平８−２４７４６１号公報には、従来
の電気点火具であって、圧填方式の電気点火具が開示さ
れている。従来の圧填方式の電気点火具は、図８に示す
ように、電極ピン２１および２２が貫通した絶縁体２３
の嵌められた金属ケース２４に、点火薬２６が圧填され
金属キャップ２７で密封したものである。電極ピン２１
と２２とは発熱抵抗線２５で架橋されている。Japanese Unexamined Patent Publication No. 8-247461 discloses a conventional electric igniter, which is a pressurized electric igniter. As shown in FIG. 8, a conventional compression-type electric igniter has an insulator 23 through which electrode pins 21 and 22 penetrate.
The ignition case 26 is press-fitted in a metal case 24 fitted with a metal cap 24 and sealed with a metal cap 27. Electrode pin 21
And 22 are bridged by a heating resistance wire 25.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら従来の電
気点火具のように、静電気エネルギーによる発熱を点火
薬剤の発火温度以下に抑制することは電気点火具の感度
を鈍感化させることを意味し、対静電気性能の向上と発
火感度の向上とは相反する結果になっていた。さらに従
来の電気点火具には前記のような静電気対策が施されて
いるとはいえ、発生した静電気は発熱抵抗を通じて放電
されるため、これが繰り返されると発熱抵抗（多くは電
橋線かプリント抵抗）の劣化は避けられないし、電橋線
を溶接する際や、プリント抵抗の抵抗調整トリミングの
際に生じるバリやヒゲの存在、形状により、放電が不定
になり静電気性能は安定しなかった。また発熱面積を大
きくすることで発熱を分散させているため、発熱抵抗の
大型化、延いては電気点火具の大型化の一因となってい
た。However, as in the conventional electric igniter, suppressing the heat generated by the electrostatic energy below the ignition temperature of the igniter means lowering the sensitivity of the electric igniter. The improvement of the static electricity performance and the improvement of the ignition sensitivity were contradictory results. Furthermore, although the conventional electric igniter is provided with the above-described measures against static electricity, the generated static electricity is discharged through the heat-generating resistor. ) Is unavoidable, and the discharge becomes unstable due to the presence and shape of burrs and whiskers generated at the time of welding the electric bridge wire or trimming the resistance of the printed resistance, and the electrostatic performance is not stabilized. In addition, since the heat generation is dispersed by increasing the heat generation area, the heat generation resistance is increased, which in turn contributes to the increase in the size of the electric igniter.
【０００５】一方、図３に示したこの電気点火具では、
電極ピン２１から金属ケース２４までの距離、および金
属ケース２４から電極ピン２２までの距離を短くしてお
くと、電極ピン２１と２２と間が静電気により電位差が
生じても、絶縁体２３に表面に沿って電極ピン２１→金
属ケース２４→電極ピン２２（またはこの逆）と縁面放
電をする。このため発熱抵抗線２５に電流が流れないの
で、暴発事故を防ぐことができる。しかし、電気点火具
は基体部分が絶縁体２３と金属ケース２４という別体で
構成されているため、低コスト化しにくいものであっ
た。On the other hand, in this electric igniter shown in FIG.
If the distance from the electrode pin 21 to the metal case 24 and the distance from the metal case 24 to the electrode pin 22 are reduced, even if a potential difference occurs between the electrode pins 21 and 22 due to static electricity, the surface of the insulator 23 is Along the electrode pin 21 → the metal case 24 → the electrode pin 22 (or vice versa) to perform edge discharge. For this reason, since no current flows through the heating resistance wire 25, an accidental accident can be prevented. However, since the base portion of the electric igniter is composed of the insulator 23 and the metal case 24 separately, it was difficult to reduce the cost.
【０００６】本発明は前記の課題を解決するためなされ
たもので、静電気による暴発事故を防止して安全性が高
い電気点火具を提供するにあたり、発火感度を維持し、
発熱抵抗が劣化することなく静電気性能の安定を図ると
ともに小型化、低コスト化を達成するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In providing an electric igniter having a high safety by preventing a violent accident caused by static electricity, the ignition sensitivity is maintained,
An object of the present invention is to stabilize static electricity performance without deteriorating heat generation resistance, and to achieve downsizing and cost reduction.
【０００７】[0007]
【課題を解決するための手段】前記の目的を達成するた
めになされた本発明を、実施例に対応する図面により説
明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;
【０００８】本発明を適用する電気点火具は、図１およ
び図２に示すとおり、発熱抵抗体３に接して点火薬剤４
が充填された容器５を覆うキャップ７と、絶縁性基体１
とが嵌合し、絶縁性基体１を貫通する対の電極ピン２ａ
および２ｂが発熱抵抗体３に連結され、絶縁性基体１の
表面に前記対の電極ピン２ａおよび２ｂの両方と略等距
離を隔てて導体６を有し、一方の電極ピン２ａと導体６
との間、およびもう一方の電極ピン２ｂと導体６との間
に各々放電ギャップ８ａおよび８ｂを形成していること
を特徴とする。As shown in FIGS. 1 and 2, an electric igniter to which the present invention is applied contacts an exothermic resistor 4 in contact with a heating resistor 3.
A cap 7 for covering a container 5 filled with
Are fitted, and a pair of electrode pins 2a penetrating the insulating substrate 1
And 2b are connected to the heating resistor 3, and have a conductor 6 on the surface of the insulating substrate 1 at substantially the same distance from both of the pair of electrode pins 2a and 2b.
, And between the other electrode pin 2b and the conductor 6, discharge gaps 8a and 8b are formed respectively.
【０００９】導体６は、図３に示すとおり、対の電極ピ
ン２ａおよび２ｂの中間部に有していてもよい。As shown in FIG. 3, the conductor 6 may be provided at an intermediate portion between the pair of electrode pins 2a and 2b.
【００１０】またキャップ７を金属製などの導電体で構
成した場合には、図４、図５、図６に示すとおり、導体
６が金属キャップ７に導通していることが好ましい。When the cap 7 is made of a conductor such as a metal, it is preferable that the conductor 6 is electrically connected to the metal cap 7 as shown in FIGS.
【００１１】本発明の電気点火具では、静電気が蓄ると
電極ピン２ａ→放電ギャップ８ａ→導体６→放電ギャッ
プ８ｂ→電極ピン２ｂを通じて放電される。静電気は高
電圧ではあるが、容量が少ないのできわめて短時間に放
電する。このとき静電気の放電電流は発熱抵抗体３にも
流れるが、きわめて短時間で放電するため、発熱に至ら
ず点火薬剤は発火しない。形成されている放電ギャップ
８ａおよび８ｂは、発熱抵抗体３と並列になっており、
発火のための電源電圧領域における抵抗値は発熱抵抗体
３に比し無限大と見なせるため、発熱抵抗体３に流れる
動作電流に影響を及ぼすことがない。In the electric igniter of the present invention, when the static electricity is accumulated, the electric igniter is discharged through the electrode pin 2a → discharge gap 8a → conductor 6 → discharge gap 8b → electrode pin 2b. Although static electricity is a high voltage, it discharges in a very short time because of its small capacity. At this time, the static electricity discharge current also flows through the heating resistor 3, but discharges in a very short time, so that no ignition occurs and the ignition agent does not ignite. The formed discharge gaps 8a and 8b are in parallel with the heating resistor 3,
Since the resistance value in the power supply voltage region for firing can be considered to be infinite compared to the heating resistor 3, the operating current flowing through the heating resistor 3 is not affected.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面により詳細に説
明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１３】図１は本発明を適用する電気点火具の一実
施例の部分断面図、図２はその下面図である。この電気
点火具は、プラスチックなどの絶縁性基体１に対の電極
ピン２ａおよび２ｂが貫通し、対の電極ピン２ａおよび
２ｂには発熱抵抗体３が電橋されている。絶縁性基体１
の発熱抵抗体３側には、スティフネート鉛を主成分とす
る点火薬剤４が充填され、発熱抵抗体３と点火薬剤４が
接している。さらに過塩素酸塩を主成分とする出力薬９
を装填したプラスチック容器５が被せられ、プラスチッ
ク容器５を覆ってキャップ７が絶縁性基体１に密封嵌合
している。FIG. 1 is a partial sectional view of an embodiment of an electric igniter to which the present invention is applied, and FIG. 2 is a bottom view of the embodiment. In this electric igniter, a pair of electrode pins 2a and 2b penetrate an insulating substrate 1 such as a plastic, and a heating resistor 3 is electrically bridged between the pair of electrode pins 2a and 2b. Insulating substrate 1
On the side of the heating resistor 3, an ignition agent 4 containing stiffened lead as a main component is filled, and the heating resistor 3 and the ignition agent 4 are in contact with each other. Further, an output drug 9 containing perchlorate as a main component.
Is covered, and a cap 7 is sealingly fitted to the insulating substrate 1 so as to cover the plastic container 5.
【００１４】絶縁性基体１の下面、すなわち電極ピン２
ａおよび２ｂが電源にのびる側の面には、円環状に導体
６を有している。導体６は銀粉末を含有した樹脂塗料、
いわゆる導電性ペイントを塗布して形成される。対の電
極ピン２ａおよび２ｂは円形の絶縁性基体１の下面に対
象に配置され、導体６は絶縁性基体１と同心の円環であ
るから、一方の電極ピン２ａと導体６との最短距離、お
よびもう一方の電極ピン２ｂと導体６との最短距離は等
距離となる。したがって、電極ピン２ａと導体６との空
間で形成される放電ギャップ８ａの放電電圧、および電
極ピン２ｂと導体６との空間で形成される放電ギャップ
８ｂの放電電圧は同一になる。尚、放電ギャップの放電
電圧が５〜３０Ｋｖであることにより適切に実施でき
る。The lower surface of the insulating substrate 1, that is, the electrode pins 2
On the surface on the side where a and 2b extend to the power source, there are conductors 6 in an annular shape. Conductor 6 is a resin paint containing silver powder,
It is formed by applying a so-called conductive paint. The pair of electrode pins 2a and 2b are symmetrically arranged on the lower surface of the circular insulating substrate 1, and the conductor 6 is a concentric ring with the insulating substrate 1, so that the shortest distance between one electrode pin 2a and the conductor 6 , And the shortest distance between the other electrode pin 2b and the conductor 6 is equal. Therefore, the discharge voltage of the discharge gap 8a formed in the space between the electrode pin 2a and the conductor 6 and the discharge voltage of the discharge gap 8b formed in the space between the electrode pin 2b and the conductor 6 become the same. In addition, it can be implemented appropriately when the discharge voltage of the discharge gap is 5 to 30 Kv.
【００１５】さらに電極ピン２ａと電極ピン２ｂは図示
しない電源に繋がれる。尚、この電気点火具は火工品で
あるガス発生器に組み込まれ、そのガス発生器は自動車
用エアバックなどとして使用される。The electrode pins 2a and 2b are connected to a power source (not shown). The electric igniter is incorporated in a pyrotechnic gas generator, and the gas generator is used as an airbag for automobiles.
【００１６】この電気点火具で、電源から電極２ａおよ
び２ｂを通じて発熱抵抗体３に通電すると、発熱抵抗体
３が発熱し、点火薬剤４の点火温度以上になると点火薬
剤４が点火する。この点火がトリガとなって電気点火具
の組み込んである火工品が動作する。In this electric igniter, when the heating resistor 3 is energized from the power supply through the electrodes 2a and 2b, the heating resistor 3 generates heat, and when the ignition temperature of the ignition agent 4 becomes higher than the ignition temperature, the ignition agent 4 is ignited. This ignition serves as a trigger to operate a pyrotechnic incorporating the electric igniter.
【００１７】上記本発明の電気点火具で放電ギャップ８
ａおよび８ｂの間隔を０．２５ｍｍとし、放電電圧を５
Ｋｖに調整したものを試作し、図７に示す試験回路によ
り静電気性能の試験を行った。比較のため放電ギャップ
のない（図１、図２の導体６を塗布してない）ものを試
作し同様に試験を行った。In the electric ignition device of the present invention, the discharge gap 8
The interval between a and 8b is 0.25 mm, and the discharge voltage is 5
A prototype adjusted to Kv was prototyped, and an electrostatic performance test was performed using a test circuit shown in FIG. For comparison, a test piece having no discharge gap (without the conductor 6 shown in FIGS. 1 and 2) was manufactured and tested in the same manner.
【００１８】試験１として本発明の試作品３個、および
比較のための試作品３個について、図３の試験回路のコ
ンデンサーＣを５００ｐＦ、放電抵抗Ｒを５ＫΩにし、
試作品をつなぎスイッチＳを入れテスト電源Ｖの出力電
圧を徐々に上げてゆき、点火薬剤が発火するか否か、お
よび発火したときはその電圧を観察した。また試験２と
して同様にコンデンサーＣを１５０ｐＦ、放電抵抗Ｒを
１５０Ωで行った。その結果は、下記表に示すとおりで
ある。As Test 1, for three prototypes of the present invention and three prototypes for comparison, the capacitor C of the test circuit of FIG. 3 was set to 500 pF and the discharge resistance R was set to 5 KΩ.
By connecting the prototype and turning on the switch S, the output voltage of the test power supply V was gradually increased, and it was observed whether or not the ignition agent ignited, and when it ignited, the voltage was observed. In Test 2, the capacitor C was similarly set at 150 pF and the discharge resistance R was set at 150Ω. The results are as shown in the following table.
【００１９】[0019]
【表１】 [Table 1]
【００２０】この表から明らかなように、比較品は電源
Ｖの出力電圧が１０〜２０Ｋｖになると点火薬剤が発火
したが、本発明品は、試験１、試験２とも点火薬剤が発
火することはなく、静電気性能の向上が認められた。As is clear from this table, the ignition product ignited when the output voltage of the power supply V became 10 to 20 Kv in the comparative product, but the ignition product ignited in both the test 1 and the test 2 in the present invention. No improvement in static electricity performance was observed.
【００２１】一方、本発明について発火感度の確認試験
を行った。試験は通電時間を一定として、定電流発生装
置を用いて、通電電流値を変化させ、最小発火電流値を
測定した。その結果本発明品は１．１Ａ、同様のテスト
で比較品の最小発火電流値は１．１Ａであり、放電ギャ
ップを設けても発火感度は変化しないことがわかった。On the other hand, a test for confirming the ignition sensitivity of the present invention was performed. In the test, while the energization time was fixed, the energization current value was changed using a constant current generator, and the minimum ignition current value was measured. As a result, it was found that the product of the present invention was 1.1 A, and the minimum ignition current value of the comparative product was 1.1 A in a similar test, and that the ignition sensitivity did not change even if a discharge gap was provided.
【００２２】図３は、図１、図２に示した実施例の電気
点火具で、導体６の配置場所を変えた実施例の下面図で
ある。この図３に示すように、導体６は対の電極ピン２
ａおよび２ｂの中央に配置し、電極ピン２ａと導体６と
の最短距離、および電極ピン２ｂと導体６との最短距離
を等距離となるようにし、電極ピン２ａと導体６との空
間で形成される放電ギャップ８ａの放電電圧、および電
極ピン２ｂと導体６との空間で形成される放電ギャップ
８ｂの放電電圧を同一にする。FIG. 3 is a bottom view of the electric igniter of the embodiment shown in FIGS. 1 and 2 in which the location of the conductor 6 is changed. As shown in FIG. 3, the conductor 6 is connected to the pair of electrode pins 2.
a and 2b are formed in the center between the electrode pin 2a and the conductor 6 so that the shortest distance between the electrode pin 2a and the conductor 6 and the shortest distance between the electrode pin 2b and the conductor 6 are equal. The discharge voltage of the discharge gap 8a and the discharge voltage of the discharge gap 8b formed in the space between the electrode pin 2b and the conductor 6 are made the same.
【００２３】図４は本発明を適用する電気点火具の別な
実施例の部分断面図、図５はその下面図である。この電
気点火具は、図１および図２に示した電気点火具と、キ
ャップ７が導電性であること、および導体６の形状が異
なることを除き略同一の構成である。すなわち点火薬剤
４の充填されたプラスチック容器５を覆う金属キャップ
７が絶縁性基体１に密封嵌合している。そして導体６、
すなわち導電性ペイントは金属キャップ７から電極ピン
２ａの近傍に至るまで、および金属キャップ７から電極
ピン２ｂの近傍に至るまで絶縁性基体１の上を帯状に塗
布される。導体６の縁から電極ピン２ａまでの距離、お
よび導体６の縁から電極ピン２ｂまでの距離は等しく
し、その距離を種々調整することにより放電ギャップの
放電電圧が調整される。尚、この実施例の電気点火具で
は、発熱抵抗体３は絶縁性基体１の上に印刷されたプリ
ント抵抗で構成されている。FIG. 4 is a partial sectional view of another embodiment of the electric igniter to which the present invention is applied, and FIG. 5 is a bottom view thereof. This electric igniter has substantially the same configuration as the electric igniter shown in FIGS. 1 and 2 except that the cap 7 is conductive and the shape of the conductor 6 is different. That is, the metal cap 7 covering the plastic container 5 filled with the ignition agent 4 is tightly fitted to the insulating base 1. And conductor 6,
That is, the conductive paint is applied in a strip shape on the insulating base 1 from the metal cap 7 to the vicinity of the electrode pin 2a and from the metal cap 7 to the vicinity of the electrode pin 2b. The distance from the edge of the conductor 6 to the electrode pin 2a and the distance from the edge of the conductor 6 to the electrode pin 2b are made equal, and the distance is variously adjusted to adjust the discharge voltage of the discharge gap. In the electric igniter of this embodiment, the heating resistor 3 is formed of a printed resistor printed on the insulating substrate 1.
【００２４】図６は、図４、図５に示した実施例の電気
点火具で、導体６の配置場所を変えた実施例の下面図で
ある。この図６に示すように、導体６は対の電極ピン２
ａおよび２ｂの中間部に配置して、各放電ギャップ８ａ
および８ｂを形成している。FIG. 6 is a bottom view of the electric igniter of the embodiment shown in FIGS. 4 and 5 in which the conductor 6 is disposed at a different place. As shown in FIG. 6, the conductor 6 is connected to the pair of electrode pins 2.
a and 2b, each discharge gap 8a
And 8b.
【００２５】尚、上記の各実施例で放電ギャップを形成
するための導体６は導電性ペイントからなるが、導電性
ペイントは銀粉末をはじめとし、各種の金属粉末やカー
ボン粉末などをアクリル樹脂、エポキシ樹脂、ウレタン
樹脂等の樹脂塗料液に混入したもので、いずれであって
も使用可能である。また導体６は導電性ペイントに限ら
ず、半田類の印刷や、金属のメッキなどでも形成でき
る。In each of the above embodiments, the conductor 6 for forming the discharge gap is made of a conductive paint. The conductive paint is made of an acrylic resin, such as silver powder, various metal powders or carbon powder. It is mixed in a resin coating liquid such as an epoxy resin or a urethane resin, and any of them can be used. In addition, the conductor 6 is not limited to the conductive paint, and can be formed by printing of solders or plating of metal.
【００２６】[0026]
【発明の効果】以上、詳細に説明したように本発明の電
気点火具では、保管中や輸送中に発生する静電気は放電
してしまうので、不測の暴発事故を防止でき、きわめて
安全である。しかも、その対策が発熱抵抗に影響を及ぼ
すことはないので発火感度を良好に保つことができる。
また静電気が発熱抵抗を通じて放電されることがなくな
るので、発熱抵抗の自然劣化を防ぐことができる。As described in detail above, the electric igniter of the present invention discharges static electricity generated during storage and transportation, thereby preventing accidental accidents and is extremely safe. In addition, since the countermeasure does not affect the heat generation resistance, the ignition sensitivity can be kept good.
In addition, since static electricity is not discharged through the heating resistor, natural deterioration of the heating resistor can be prevented.
【００２７】さらに本発明の電気点火具では基体部分を
プラスチックなどの絶縁体で構成しても、静電気対策が
できるようになったもので、量産性に優れ、低コスト化
に極めて有効である。Further, in the electric igniter of the present invention, even if the base portion is made of an insulator such as plastic, the countermeasure against static electricity can be taken, so that it is excellent in mass productivity and extremely effective in cost reduction.
【図１】本発明を適用する電気点火具の一実施例の部分
断面図である。FIG. 1 is a partial cross-sectional view of an embodiment of an electric igniter to which the present invention is applied.
【図２】本発明を適用する電気点火具の一実施例の下面
図である。FIG. 2 is a bottom view of an embodiment of the electric igniter to which the present invention is applied.
【図３】本発明を適用する電気点火具の別な実施例の下
面図である。FIG. 3 is a bottom view of another embodiment of the electric igniter to which the present invention is applied.
【図４】本発明を適用する電気点火具の別な実施例の部
分断面図である。FIG. 4 is a partial sectional view of another embodiment of the electric igniter to which the present invention is applied.
【図５】本発明を適用する電気点火具の別な実施例の下
面図である。FIG. 5 is a bottom view of another embodiment of the electric igniter to which the present invention is applied.
【図６】本発明を適用する電気点火具の別な実施例の下
面図である。FIG. 6 is a bottom view of another embodiment of the electric igniter to which the present invention is applied.
【図７】試作品の静電気性能を試験するための試験回路
図である。FIG. 7 is a test circuit diagram for testing electrostatic performance of a prototype.
【図８】従来の電気点火具の実施例の断面図である。FIG. 8 is a sectional view of an embodiment of a conventional electric igniter.
１は絶縁性基体、２ａ・２ｂは電極ピン、３は発熱抵抗
体、４は点火薬剤、５は容器、６導体、７はキャップ、
８ａ・８ｂは放電ギャップ、９は出力薬、Ｃはコンデン
サー、Ｒは放電抵抗、Ｖはテスト電源である。1 is an insulating substrate, 2a and 2b are electrode pins, 3 is a heating resistor, 4 is an ignition agent, 5 is a container, 6 conductors, 7 is a cap,
8a and 8b are discharge gaps, 9 is an output medicine, C is a capacitor, R is a discharge resistor, and V is a test power supply.
Claims (3)
れた容器を覆うキャップと、絶縁性基体とが嵌合し、該
絶縁性基体を貫通する対の電極ピンが発熱抵抗体に連結
され、該絶縁性基体の表面に前記対の電極ピンの両方と
略等距離を隔てて導体を有し、一方の電極ピンと該導体
との間、およびもう一方の電極ピンと該導体との間に各
々放電ギャップを形成していることを特徴とする電気点
火具。1. A cap for covering a container filled with an igniting agent in contact with a heating resistor and an insulating base are fitted together, and a pair of electrode pins penetrating through the insulating base are connected to the heating resistor. Having a conductor on the surface of the insulating substrate at substantially the same distance from both of the pair of electrode pins, and between the one electrode pin and the conductor, and between the other electrode pin and the conductor, respectively. An electric igniter characterized by forming a discharge gap.
有することを特徴とする請求項１に記載の電気点火具。2. The electric igniter according to claim 1, wherein said conductor is provided at an intermediate portion between said pair of electrode pins.
属キャップに導通していることを特徴とする電気点火
具。3. The electric igniter according to claim 1, wherein said cap is made of metal, and said conductor is electrically connected to said metal cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9285786A JPH11118152A (en) | 1997-10-17 | 1997-10-17 | Electric ignition tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9285786A JPH11118152A (en) | 1997-10-17 | 1997-10-17 | Electric ignition tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11118152A true JPH11118152A (en) | 1999-04-30 |
Family
ID=17696060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9285786A Pending JPH11118152A (en) | 1997-10-17 | 1997-10-17 | Electric ignition tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11118152A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008521675A (en) * | 2004-11-25 | 2008-06-26 | オートリブ ディベロップメント アクティエボラーグ | Automotive safety device with gas microgenerator |
| CN108716879A (en) * | 2018-06-14 | 2018-10-30 | 南京雷芯聚力电子科技有限公司 | Ignition circuit board and include the ignition circuit board igniter |
-
1997
- 1997-10-17 JP JP9285786A patent/JPH11118152A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008521675A (en) * | 2004-11-25 | 2008-06-26 | オートリブ ディベロップメント アクティエボラーグ | Automotive safety device with gas microgenerator |
| CN108716879A (en) * | 2018-06-14 | 2018-10-30 | 南京雷芯聚力电子科技有限公司 | Ignition circuit board and include the ignition circuit board igniter |
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