JPH0429270Y2 - - Google Patents
Info
- Publication number
- JPH0429270Y2 JPH0429270Y2 JP1987140000U JP14000087U JPH0429270Y2 JP H0429270 Y2 JPH0429270 Y2 JP H0429270Y2 JP 1987140000 U JP1987140000 U JP 1987140000U JP 14000087 U JP14000087 U JP 14000087U JP H0429270 Y2 JPH0429270 Y2 JP H0429270Y2
- Authority
- JP
- Japan
- Prior art keywords
- electronic
- electronic detonator
- detonator
- circuit
- lead wires
- 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
- 230000003068 static effect Effects 0.000 description 17
- 230000005611 electricity Effects 0.000 description 12
- 230000015556 catabolic process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、静電気に対して安全な電子式雷管に
関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an electronic detonator that is safe against static electricity.
（従来の技術）
近年、段発電気雷管の秒時精度を向上させる目
的で従来の延時薬に変わり、電子回路を組み込ん
だ電子式雷管が提唱されている。(Prior Art) In recent years, an electronic detonator incorporating an electronic circuit has been proposed in place of the conventional delay timer for the purpose of improving the timing accuracy of staged electric detonators.
ところが従来の公知文献は特公昭56−26228号
公報、特開昭57−142498号公報などに示される電
子回路自体の回路構成に関するもの、特開昭58−
2285号公報、特開昭58−83200号公報などに示さ
れる電子回路を安定に動作させるための工夫に関
するもの、特開昭60−186278号公報に示される迷
走電流に対して保護するための工夫に関するもの
などは開示されているが、静電気に対する電子回
路の保護については具体的に触れられていないの
が現状である。 However, conventionally known documents are related to the circuit configuration of the electronic circuit itself, as shown in Japanese Patent Publication No. 56-26228, Japanese Patent Application Laid-open No. 142498-1983, etc.
2285, Japanese Patent Application Laid-Open No. 58-83200, etc., concerning devices for stably operating electronic circuits, and Japanese Patent Application Laid-Open No. 60-186278, devices for protecting against stray currents. However, at present, the protection of electronic circuits against static electricity is not specifically mentioned.
従来の電気雷管のリード線間に静電気が印加さ
れた場合には、それはある一定のエネルギーを越
えたときに電気雷管の暴発という形で問題を引き
起こし、一方、電子式雷管のリード線間に静電気
が印加された場合には、それはある一定以上の電
圧のときに電子回路の破壊という形で問題を引き
起こすが、両者が不具合を生じる状況を同一の条
件下で比較した場合には、電子式雷管の方が従来
の電気雷管よりも低いレベルで不具合が生じる。
ちなみに、従来の電気雷管のリード線間に
2000pFの静電容量に３〜4kV充電した電荷を放
電印加した場合、暴発するが、電子式雷管の場合
には電子回路に使用する電子部品の耐電圧特性に
もよるが、1kVを越えると電子回路が破壊する危
険性が生じてくる。 If static electricity is applied between the leads of a conventional electric detonator, it will cause problems in the form of explosion of the electric detonator when a certain energy is exceeded, whereas static electricity between the leads of an electronic detonator When applied, it causes a problem in the form of destruction of the electronic circuit when the voltage exceeds a certain level, but when comparing the situations in which both types of malfunction occur under the same conditions, it is found that the electronic detonator failure occurs at a lower level than with conventional electric detonators.
By the way, between the lead wires of a conventional electric detonator
If a charge of 3 to 4 kV is applied to a 2000 pF capacitance, it will explode, but in the case of an electronic detonator, if the voltage exceeds 1 kV, the electronic detonator will explode. There is a risk that the circuit will be destroyed.
電子式雷管のリード線間に静電気が印加され、
これにより電子式雷管内の電子回路が静電気の高
電圧により破壊された場合、その電子式雷管は使
用時に不発あるいは誤動作の原因となり、火薬類
消費上重大な問題となる。 Static electricity is applied between the leads of an electronic detonator,
As a result, if the electronic circuit in the electronic detonator is destroyed by the high voltage of static electricity, the electronic detonator may fail to explode or malfunction during use, resulting in a serious problem in terms of consumption of explosives.
（考案が解決しようとする問題点）
本考案の目的は、電子式雷管のリード線間に静
電気が印加された場合にも、中の電子回路が破壊
されないように、電子式雷管に耐静電気性能を付
与することであり、更に、この耐静電気性能を付
与するための手段が、特別の電子部品や電子回路
の追加を必要とすることがなく、従つて耐静電気
性能を付与したことにより、電子回路の部品点数
が増え、その結果大きさが大きくなつたり、回路
が複雑になつたりするといつた欠点のない電子式
雷管を提供することにある。(Problem to be solved by the invention) The purpose of the invention is to provide the electronic detonator with static electricity resistance so that even if static electricity is applied between the lead wires of the electronic detonator, the electronic circuit inside will not be destroyed. Moreover, the means for imparting static electricity resistance does not require the addition of special electronic components or electronic circuits, and therefore, by imparting static electricity resistance, electronic To provide an electronic detonator which does not have the disadvantages of increasing the number of parts in the circuit, resulting in an increase in size and complexity of the circuit.
（問題点を解決するための手段）
本考案は、一対のリード線にそれぞれ接続され
た２つの入力端子と点火装置との間に電子回路を
有する電子式雷管において、
前記２つの入力端子間の一部に微小な間隙構造
を設け、この微小間隙構造を、前記電子回路が搭
載されているプリント基板上に形成された配線パ
ターンを以て構成したことを特徴とするものであ
る。(Means for Solving the Problems) The present invention provides an electronic detonator having an electronic circuit between two input terminals each connected to a pair of lead wires and an ignition device. The present invention is characterized in that a minute gap structure is provided in a part, and this minute gap structure is constituted by a wiring pattern formed on a printed circuit board on which the electronic circuit is mounted.
このような本考案によれば、リード線間に与え
られる静電荷による電圧が微小間隙構造の配線パ
ターン間の絶縁破壊電圧よりも高くなると、これ
らの配線パターン間で放電が行われて静電荷を除
去することができ、したがつて静電荷によつて電
子回路が破壊されるのを有効に防止することがで
き、雷管の不発や延時秒時を正確に設定すること
ができる。 According to the present invention, when the voltage due to the static charge applied between the lead wires becomes higher than the dielectric breakdown voltage between the wiring patterns with a micro gap structure, discharge occurs between these wiring patterns and the static charge is removed. Therefore, it is possible to effectively prevent electronic circuits from being destroyed by static charges, and it is possible to accurately set the detonator misfire and delay time.
また、微小間隙構造を、電子回路のプリンター
基板上に配線パターンとして形成したため、きわ
めて正確に微小間隙を形成することができ、さら
にこの微小間隙が変動するようなこともない。ま
た、電子回路のプリント基板を利用するので、微
小間隙を構成するために追加の部品は必要ではな
く、製造が簡単になるとともに安価に実施するこ
ともできる。 Furthermore, since the microgap structure is formed as a wiring pattern on the printer board of the electronic circuit, the microgap can be formed extremely accurately, and furthermore, the microgap will not fluctuate. Further, since a printed circuit board of an electronic circuit is used, no additional parts are required to form the microgap, making manufacturing simple and inexpensive.
本考案の電子式雷管における微小間隙の寸法
は、電子式雷管のード線に静電荷が帯電された場
合、電子回路が破壊する以前に微小間隙間で放電
が行われるようにできるだけ、小さくするのが好
適である。本考案の好適実施例においては、この
微小間隙を0.5mm以下とする。空気の絶縁破壊電
圧は、１mmの間隔で約2.6kVであるので、間隙を
0.5mm以下に設定すると、静電荷によつてリード
線間に約1.3kV以上の電圧が印加されたときに美
町間隙間で放電が生じるようになり、その結果、
電子回路には1.3kV以上の電圧が印加されるよう
なことがなくなり、破壊するようなことはなくな
る。 The size of the microgap in the electronic detonator of the present invention is made as small as possible so that when static charge is applied to the wire of the electronic detonator, a discharge occurs in the microgap before the electronic circuit is destroyed. is preferable. In a preferred embodiment of the present invention, this minute gap is 0.5 mm or less. The dielectric breakdown voltage of air is approximately 2.6kV at a 1mm interval, so
If it is set to 0.5 mm or less, when a voltage of approximately 1.3 kV or more is applied between the lead wires due to static charge, discharge will occur in the gap between the leads, and as a result,
Voltages higher than 1.3kV will no longer be applied to electronic circuits, and no damage will occur.
以下図面に従つて本考案を説明する。 The present invention will be explained below with reference to the drawings.
第１図は本考案の電子式雷管の１実施態様の入
力部の構造を示す構造図である。リード線２は基
板６上の配線パターンの入力端子４に接続されて
おり、更に、入力端子４は互いに向かい合つた部
分が尖つており、その結果、微小空隙５を形成す
るようになつている。 FIG. 1 is a structural diagram showing the structure of an input section of an embodiment of the electronic detonator of the present invention. The lead wire 2 is connected to an input terminal 4 of a wiring pattern on a substrate 6, and further, the input terminals 4 have pointed portions facing each other, so that a microgap 5 is formed as a result. .
リード線間に静電気が印加された場合、その印
加電圧が微小空隙５の絶縁破壊電圧以下である場
合には、その電圧は電子回路７に印加されること
になるが、微小空隙５の絶縁破壊電圧以上の電圧
が印加された場合には、微小空隙５の間で絶縁破
壊が生じる。従つて、微小空隙５の間隙を調整
し、その絶縁破壊電圧が電子回路の耐圧以下にな
るように設定することにより、耐静電気性能に優
れた電子式雷管を得ることが出来る。 When static electricity is applied between the lead wires, if the applied voltage is less than the dielectric breakdown voltage of the microgap 5, that voltage will be applied to the electronic circuit 7, but the dielectric breakdown of the microgap 5 When a voltage higher than the voltage is applied, dielectric breakdown occurs between the microgaps 5. Therefore, by adjusting the gap between the microgaps 5 and setting the dielectric breakdown voltage to be lower than the withstand voltage of the electronic circuit, it is possible to obtain an electronic detonator with excellent anti-static performance.
（考案の効果）
本考案の電子式雷管はリード線間に静電気が印
加された場合にも、中の電子回路が破壊されない
ため極めて安全なものである。さらに本考案は、
この効果を達成するための手段として、新たに特
別の電子部品や電子回路を追加する必要がないた
め、電子回路の部品点数が増え、その結果大きさ
が大きくなつたり、回路が複雑になつたりすると
いつた欠点がない。(Effects of the invention) The electronic detonator of the invention is extremely safe because the electronic circuit inside is not destroyed even if static electricity is applied between the lead wires. Furthermore, this invention
As a means to achieve this effect, there is no need to add new special electronic components or electronic circuits, so the number of parts in the electronic circuit increases, resulting in an increase in size or complexity of the circuit. Then there are no flaws.
（実施例）
実施例 １
第１図に示した入力部の構造を有する電子式雷
管を試作した。但し微小空隙５の間隙は0.5mmと
し、電子回路には第３図に示した特願昭61−
224947号に示す回路を用いた。この電子式雷管の
リード線間に2000pF8kVの容量放電を加えたと
ころが、印加後も正常に動作した。(Examples) Example 1 An electronic detonator having the structure of the input section shown in FIG. 1 was manufactured as a prototype. However, the gap between the micro-gaps 5 is 0.5 mm, and the electronic circuit is
The circuit shown in No. 224947 was used. When a capacitive discharge of 2000pF8kV was applied between the lead wires of this electronic detonator, it operated normally even after the application.
実施例 ２
微小空隙５の間隔が0.2mmである以外は実施例
１と同様の電子式雷管を試作した。このリード線
間に2000pF8kVの容量放電を加えたところ、印
加後も正常に動作した。Example 2 An electronic detonator similar to Example 1 was produced as a prototype except that the interval between the microgaps 5 was 0.2 mm. When a capacitive discharge of 2000pF8kV was applied between these lead wires, the device operated normally even after the application.
比較例 １
微小空隙５の間隙５の間隙0.7mmである以外は
実施例１と同様の電子式雷管を試作した。このリ
ード線間に2000pF1kVの容量放電を加えたとこ
ろ、印加後も正常に動作したが、2000pF1.5kVの
容量放電を加えたところ、印加後は電子式雷管は
不発になつた。Comparative Example 1 An electronic detonator similar to Example 1 was manufactured as a prototype except that the gap between the microgaps 5 and the gap 5 was 0.7 mm. When a capacitive discharge of 2000 pF 1 kV was applied between the lead wires, the electronic detonator continued to operate normally, but when a capacitive discharge of 2000 pF 1.5 kV was applied, the electronic detonator failed to explode after the application.
比較例 ２
微小空隙５の間隙が1.0mmである以外は実施例
１と同様の電子式雷管を試作した。このリード線
間に2000pF1kVの容量放電を加えたところ、印
加後電子式雷管は不発になつた。Comparative Example 2 An electronic detonator similar to that of Example 1 was produced as a prototype except that the gap between the microgaps 5 was 1.0 mm. When a capacitive discharge of 2000pF1kV was applied between the lead wires, the electronic detonator failed to explode after the application.
第１図は、本考案の電子式雷管の１実施態様の
入力部の構造を示す構造図であり、第２図は、本
考案の電子式雷管の全体を示す構造図であり、第
３図は、実施例で用いた特願昭61−224947号に示
される回路図である。
FIG. 1 is a structural diagram showing the structure of an input section of an embodiment of the electronic detonator of the present invention, FIG. 2 is a structural diagram showing the entire electronic detonator of the present invention, and FIG. is a circuit diagram shown in Japanese Patent Application No. 61-224947 used in the examples.
Claims (1)
入力端子と点火装置との間に電子回路を有する
電子式雷管において、 前記２つの入力端子間の一部に微小な間隙構造
を設け、この微小間隙構造を、前記電子回路が
搭載されているプリント基板上に形成された配
線パターンを以て構成したことを特徴とする電
子式雷管。 ２ 前記微小間隙構造を、その配線パターンの間
隔が、0.5mm以下となるように構成したことを
特徴とする実用新案登録請求の範囲第１項記載
の電子式雷管。[Claims for Utility Model Registration] 1. In an electronic detonator having an electronic circuit between two input terminals each connected to a pair of lead wires and an ignition device, a minute portion is provided between the two input terminals. An electronic detonator characterized in that a gap structure is provided, and the minute gap structure is constituted by a wiring pattern formed on a printed circuit board on which the electronic circuit is mounted. 2. The electronic detonator according to claim 1, wherein the minute gap structure is configured such that the spacing between the wiring patterns is 0.5 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987140000U JPH0429270Y2 (en) | 1987-09-16 | 1987-09-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987140000U JPH0429270Y2 (en) | 1987-09-16 | 1987-09-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446697U JPS6446697U (en) | 1989-03-22 |
| JPH0429270Y2 true JPH0429270Y2 (en) | 1992-07-15 |
Family
ID=31403772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987140000U Expired JPH0429270Y2 (en) | 1987-09-16 | 1987-09-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429270Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63108200A (en) * | 1986-09-26 | 1988-05-13 | アイレコ インコーポレイテイッド | Electric type detonator and electrostatic charge discharging method thereof |
-
1987
- 1987-09-16 JP JP1987140000U patent/JPH0429270Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63108200A (en) * | 1986-09-26 | 1988-05-13 | アイレコ インコーポレイテイッド | Electric type detonator and electrostatic charge discharging method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6446697U (en) | 1989-03-22 |
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