EP0008835A1 - Circuit électrique pour l'allumage d'un détonateur - Google Patents
Circuit électrique pour l'allumage d'un détonateur Download PDFInfo
- Publication number
- EP0008835A1 EP0008835A1 EP79200482A EP79200482A EP0008835A1 EP 0008835 A1 EP0008835 A1 EP 0008835A1 EP 79200482 A EP79200482 A EP 79200482A EP 79200482 A EP79200482 A EP 79200482A EP 0008835 A1 EP0008835 A1 EP 0008835A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- capacitor
- capacitors
- voltage
- electrical circuit
- contactor
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C11/00—Electric fuzes
- F42C11/06—Electric fuzes with time delay by electric circuitry
Definitions
- the invention relates to an electrical circuit for igniting a projectile detonator, comprising a generator for charging first and second capacitors connected in series, said first capacitor being connected in series with a contactor, a primer and a semi element. -conductor with controlled conductivity, and means for stabilizing the voltage of one of said capacitors and for preventing ignition of the primer for a predetermined time.
- Such an electrical circuit is of the type disclosed in DOS No. 1,948,382.
- said means stabilize the voltage on the first capacitor using a Zener diode and prevent ignition of the primer for a predetermined time after the contactor closes.
- the purpose of the present application is to provide an electrical circuit of the aforementioned type but in which said means do not use a Zener diode and prevent the ignition of the primer for a predetermined time after charging the capacitors.
- said means comprise a first voltage divider connected in parallel with the series connection of said first and second capacitors and of said contactor, the control electrode of said semi-element conductor being connected to the intermediate point of said first voltage booster comprising a transistor whose base is connected to the intermediate point of a second voltage divider connected in parallel with said second capacitor which has a value several times greater than that of the first capacitor.
- said means not only stabilize the voltage of the second capacitor without using a Zener diode and prevent ignition of the primer for a predetermined time after charging the capacitors.
- the circuit comprises a generator formed by a winding L arranged around a magnetic core, part 1 of which is made of soft iron and part 2 is constituted by a permanent magnet.
- the latter is intended to be separated from part 1 at the start of the stroke. This displacement is generally obtained simply by inertia effect and the remoteness of the permanent magnet 2 causes an abrupt variation of the magnetic flux in the winding L, which induces an electric voltage used to charge two capacitors C 1 and C 2 connected in series.
- a diode D prevents after having been charged, the capacitors do not redischarge in the winding L.
- a switch 3 short-circuits, before the start of the blow, the two capacitors to avoid any potential difference due for example to fields electrical interference.
- the capacitor C 1 supplies in series a contactor 4 for controlling the ignition, a primer 5 and an electronic switch 6.
- the capacitor C 2 is connected to a device 7 for stabilizing its voltage and to a timing device 8.
- the latter acts on a circuit 9 working in a similar fashion to an AND gate and supplying the command to close the switch. electronic 6.
- the capacitor C 1 When the shot starts, the two capacitors C 1 and C 2 are charged, the capacitor C 1 being intended to supply the energy necessary for the ignition of the primer 5.
- the capacitor C 2 supplies the timer device 8 which prevents , via the circuit 9, that a signal can close the switch 6 for a certain period after charging the capacitors. This duration can be of the order of 100 ms for example and makes it possible to obtain security of mouth.
- the time delay obtained by the circuit 8 is constant, thanks to the voltage stabilizer 7 which makes it possible to obtain a charging voltage of the capacitor C 2 independent of the voltage supplied by the generator. Indeed, the latter can vary significantly depending on the initial acceleration of the projectile and, therefore, the speed of movement of the permanent magnet 2. If the ignition switch 4 was accidentally closed before the end from the safety of the mouth, the capacitor CI would be connected to a resistor R 1 and would therefore be discharged, which would prevent any subsequent ignition.
- Figure 2 illustrates a particularly advantageous embodiment of the circuit according to Figure 1.
- the electronic switch consists of a thyristor T 1 , the control electrode of which is connected by a resistor R 3 to a voltage divider formed by a resistor R 2 and a transistor T 2 .
- This voltage divider is connected across the two capacitors C 1 and C 2 in series.
- the base of transistor T 2 is controlled by a signal obtained by a second voltage divider, consisting of two resistors R 4 and R 5 connected to the terminals of capacitor C 2 .
- Mouth safety is given by the discharge of the capacitor C 2 in the resistor R 4 and the transistor T 2 until the base voltage of the latter becomes too low to maintain it in the conductive state. From this moment, the thyristor control electrode T 1 can receive the positive potential of the capacitor C l which is transmitted by the resistor R 2 .
- the circuit described makes it possible to obtain stabilization of the voltage of the capacitor C 2 inexpensively, by virtue of the Zener effect which is observed between the cathode and the control electrode of a thyristor.
- a flow of current is observed, which gives a discharge current of the capacitor C 2 through the circuit formed by the cathode of T 1 , its control electrode, the resistor R 3 and the transistor T 2 .
- the maximum voltage of C 2 is limited, so that its discharge time until T 2 becomes non-conductive is constant.
- control voltage of the transistor T 2 is much lower than that necessary for the operation of the primer 5, so that one can advantageously give to the capacitor C 2 a capacity several times greater than that of the capacitor C 1 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Air Bags (AREA)
- Electrophonic Musical Instruments (AREA)
- Organic Insulating Materials (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Control Of Eletrric Generators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH932978A CH628423A5 (fr) | 1978-09-05 | 1978-09-05 | Circuit electrique pour l'allumage d'un detonateur. |
CH9329/78 | 1978-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0008835A1 true EP0008835A1 (fr) | 1980-03-19 |
Family
ID=4350816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79200482A Withdrawn EP0008835A1 (fr) | 1978-09-05 | 1979-09-03 | Circuit électrique pour l'allumage d'un détonateur |
Country Status (21)
Country | Link |
---|---|
US (1) | US4296688A (fi) |
EP (1) | EP0008835A1 (fi) |
AT (1) | AT367544B (fi) |
BE (1) | BE83T1 (fi) |
BR (1) | BR7905707A (fi) |
CA (1) | CA1118833A (fi) |
CH (1) | CH628423A5 (fi) |
DE (1) | DE2953090C2 (fi) |
EG (1) | EG13713A (fi) |
ES (1) | ES483864A1 (fi) |
FI (1) | FI67954C (fi) |
FR (1) | FR2458045A1 (fi) |
GB (1) | GB2049892B (fi) |
IL (1) | IL58161A (fi) |
IT (1) | IT1148236B (fi) |
NL (1) | NL172592C (fi) |
NO (1) | NO151065C (fi) |
PT (1) | PT70144A (fi) |
SE (1) | SE443653B (fi) |
YU (1) | YU211379A (fi) |
ZA (1) | ZA794686B (fi) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075968A1 (de) * | 1981-09-24 | 1983-04-06 | Werkzeugmaschinenfabrik Oerlikon-Bührle AG | Steuerschaltung zum Zünden einer niederohmigen Zündpille |
EP0093804A1 (fr) * | 1982-05-12 | 1983-11-16 | "s.a. PRB", Société anonyme | Circuit électronique perfectionné pour l'allumage d'un détonateur |
DE3336534A1 (de) * | 1983-10-07 | 1985-04-25 | Diehl GmbH & Co, 8500 Nürnberg | Elektronische zuendsteuerschaltung |
US4882993A (en) * | 1988-08-05 | 1989-11-28 | The United States Of America As Represented By The Secretary Of The Army | Electronic back-up safety mechanism for hand-emplaced land mines |
US5031537A (en) * | 1988-11-18 | 1991-07-16 | Kidde-Graviner Limited | Electrical timing arrangements and methods |
WO2009132573A1 (zh) * | 2008-04-28 | 2009-11-05 | 北京铱钵隆芯科技有限责任公司 | 电子雷管控制芯片 |
CN101464674B (zh) * | 2008-09-24 | 2011-06-15 | 北京铱钵隆芯科技有限责任公司 | 可编程电子雷管控制芯片及其控制流程 |
CN101338996B (zh) * | 2008-06-04 | 2013-01-23 | 北京铱钵隆芯科技有限责任公司 | 电子雷管控制芯片及其连接可靠性检测方法 |
CN110645850A (zh) * | 2019-11-05 | 2020-01-03 | 湖北三江航天红林探控有限公司 | 基于rc延时的起爆控制系统及控制方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4395950A (en) * | 1980-05-05 | 1983-08-02 | Atlas Powder Company | Electronic delay blasting circuit |
GB8622806D0 (en) * | 1986-09-23 | 1987-02-04 | Royal Ordnance Plc | Detonation fuzes |
US4934268A (en) * | 1989-01-26 | 1990-06-19 | The United States Of America As Represented By The Secretary Of The Army | Warhead initiation circuit |
US5167308A (en) * | 1991-01-17 | 1992-12-01 | Grand Haven Stamped Products, Div. Of Jsj Corporation | Combination brake/park lockout and steering mechanism and system |
US5173569A (en) * | 1991-07-09 | 1992-12-22 | The Ensign-Bickford Company | Digital delay detonator |
US5440991A (en) * | 1993-12-29 | 1995-08-15 | Universal Propulsion Company, Inc. | Miniature self contained firing system |
US6389975B1 (en) | 2000-04-24 | 2002-05-21 | The United States Of America As Represented By The Secretary Of The Navy | Transistorized high-voltage circuit suitable for initiating a detonator |
US8582275B2 (en) * | 2008-04-28 | 2013-11-12 | Beijing Ebtech Technology Co., Ltd. | Electronic detonator control chip |
CN101338995B (zh) * | 2008-06-04 | 2013-05-29 | 北京铱钵隆芯科技有限责任公司 | 电子雷管控制芯片及其连接可靠性检测方法 |
AP2014007641A0 (en) * | 2012-02-29 | 2014-05-31 | Detnet South Africa Pty Ltd | Electronic detonator |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3088409A (en) * | 1960-11-28 | 1963-05-07 | Irvin S Yavelberg | Electronic timer |
DE1948382A1 (de) * | 1969-09-25 | 1971-04-01 | Licentia Gmbh | Anordnung zum Erzeugen eines elektrischen Impulses |
DE1948381A1 (de) * | 1969-09-25 | 1971-04-08 | Licentia Gmbh | Zuender mit elektrisch zuendbarer Zuendpille |
US3604356A (en) * | 1969-03-06 | 1971-09-14 | Us Navy | Variable time ordnance fuze circuit |
DE2314273A1 (de) * | 1973-03-22 | 1974-10-03 | Diehl Fa | Zuendschaltung fuer ein geschoss |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045148A (en) * | 1962-07-17 | Ignition system with transistor control | ||
BE633460A (fi) * | 1962-06-15 | |||
DE2151245A1 (de) * | 1971-10-14 | 1976-01-02 | Junghans Gmbh Geb | Elektrischer zuender fuer geschosse |
DE2152427A1 (de) * | 1971-10-21 | 1977-02-03 | Licentia Gmbh | Aufschlagzuender mit flugzeitabhaengiger verzoegerung |
FR2274018A1 (fr) * | 1974-06-05 | 1976-01-02 | France Etat | Dispositif electronique de temporisation reglable pour engins |
DE2653452C3 (de) * | 1976-11-25 | 1983-11-17 | Diehl GmbH & Co, 8500 Nürnberg | Elektronische Zündschaltung |
DE2738768C2 (de) * | 1977-08-27 | 1982-08-19 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Aufschlagzünder |
-
1978
- 1978-09-05 CH CH932978A patent/CH628423A5/fr not_active IP Right Cessation
-
1979
- 1979-08-30 YU YU02113/79A patent/YU211379A/xx unknown
- 1979-09-03 AT AT0990879A patent/AT367544B/de not_active IP Right Cessation
- 1979-09-03 FI FI792726A patent/FI67954C/fi not_active IP Right Cessation
- 1979-09-03 EP EP79200482A patent/EP0008835A1/fr not_active Withdrawn
- 1979-09-03 NL NLAANVRAGE7915052,A patent/NL172592C/xx not_active IP Right Cessation
- 1979-09-03 GB GB8026876A patent/GB2049892B/en not_active Expired
- 1979-09-03 BE BEBTR83A patent/BE83T1/xx not_active IP Right Cessation
- 1979-09-03 IL IL58161A patent/IL58161A/xx unknown
- 1979-09-03 DE DE2953090A patent/DE2953090C2/de not_active Expired
- 1979-09-04 NO NO792856A patent/NO151065C/no unknown
- 1979-09-04 PT PT70144A patent/PT70144A/pt unknown
- 1979-09-04 ES ES483864A patent/ES483864A1/es not_active Expired
- 1979-09-04 US US06/072,100 patent/US4296688A/en not_active Expired - Lifetime
- 1979-09-04 CA CA000334928A patent/CA1118833A/fr not_active Expired
- 1979-09-05 EG EG530/79A patent/EG13713A/xx active
- 1979-09-05 ZA ZA00794686A patent/ZA794686B/xx unknown
- 1979-09-05 BR BR7905707A patent/BR7905707A/pt unknown
-
1980
- 1980-08-22 FR FR8018441A patent/FR2458045A1/fr active Granted
- 1980-10-31 IT IT86285/80A patent/IT1148236B/it active
- 1980-12-02 SE SE8008441A patent/SE443653B/sv not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3088409A (en) * | 1960-11-28 | 1963-05-07 | Irvin S Yavelberg | Electronic timer |
US3604356A (en) * | 1969-03-06 | 1971-09-14 | Us Navy | Variable time ordnance fuze circuit |
DE1948382A1 (de) * | 1969-09-25 | 1971-04-01 | Licentia Gmbh | Anordnung zum Erzeugen eines elektrischen Impulses |
DE1948381A1 (de) * | 1969-09-25 | 1971-04-08 | Licentia Gmbh | Zuender mit elektrisch zuendbarer Zuendpille |
DE2314273A1 (de) * | 1973-03-22 | 1974-10-03 | Diehl Fa | Zuendschaltung fuer ein geschoss |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0075968A1 (de) * | 1981-09-24 | 1983-04-06 | Werkzeugmaschinenfabrik Oerlikon-Bührle AG | Steuerschaltung zum Zünden einer niederohmigen Zündpille |
US4493259A (en) * | 1981-09-24 | 1985-01-15 | Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag | Control circuit for igniting a low-ohm ignition capsule |
EP0093804A1 (fr) * | 1982-05-12 | 1983-11-16 | "s.a. PRB", Société anonyme | Circuit électronique perfectionné pour l'allumage d'un détonateur |
DE3336534A1 (de) * | 1983-10-07 | 1985-04-25 | Diehl GmbH & Co, 8500 Nürnberg | Elektronische zuendsteuerschaltung |
US4632032A (en) * | 1983-10-07 | 1986-12-30 | Diehl Gmbh & Co | Electronic ignition control circuit |
US4882993A (en) * | 1988-08-05 | 1989-11-28 | The United States Of America As Represented By The Secretary Of The Army | Electronic back-up safety mechanism for hand-emplaced land mines |
US5031537A (en) * | 1988-11-18 | 1991-07-16 | Kidde-Graviner Limited | Electrical timing arrangements and methods |
WO2009132573A1 (zh) * | 2008-04-28 | 2009-11-05 | 北京铱钵隆芯科技有限责任公司 | 电子雷管控制芯片 |
CN101338996B (zh) * | 2008-06-04 | 2013-01-23 | 北京铱钵隆芯科技有限责任公司 | 电子雷管控制芯片及其连接可靠性检测方法 |
CN101464674B (zh) * | 2008-09-24 | 2011-06-15 | 北京铱钵隆芯科技有限责任公司 | 可编程电子雷管控制芯片及其控制流程 |
CN110645850A (zh) * | 2019-11-05 | 2020-01-03 | 湖北三江航天红林探控有限公司 | 基于rc延时的起爆控制系统及控制方法 |
CN110645850B (zh) * | 2019-11-05 | 2021-01-26 | 湖北三江航天红林探控有限公司 | 基于rc延时的起爆控制系统及控制方法 |
Also Published As
Publication number | Publication date |
---|---|
ATA990879A (de) | 1981-11-15 |
IT1148236B (it) | 1986-11-26 |
NO151065B (no) | 1984-10-22 |
GB2049892A (en) | 1980-12-31 |
EG13713A (en) | 1982-03-31 |
FR2458045B1 (fi) | 1982-11-12 |
NL7915052A (nl) | 1980-11-28 |
CA1118833A (fr) | 1982-02-23 |
IT8086285A0 (it) | 1980-10-31 |
NL172592B (nl) | 1983-04-18 |
SE8008441L (sv) | 1980-12-02 |
FR2458045A1 (fr) | 1980-12-26 |
GB2049892B (en) | 1983-05-18 |
ES483864A1 (es) | 1980-04-01 |
FI67954B (fi) | 1985-02-28 |
DE2953090C2 (de) | 1984-06-28 |
NL172592C (nl) | 1983-09-16 |
FI792726A (fi) | 1980-03-06 |
YU211379A (en) | 1983-02-28 |
DE2953090A1 (de) | 1981-02-19 |
AT367544B (de) | 1982-07-12 |
CH628423A5 (fr) | 1982-02-26 |
US4296688A (en) | 1981-10-27 |
BR7905707A (pt) | 1980-05-27 |
PT70144A (fr) | 1979-10-01 |
SE443653B (sv) | 1986-03-03 |
IL58161A (en) | 1982-02-28 |
FI67954C (fi) | 1985-06-10 |
BE83T1 (fr) | 1980-09-12 |
NO792856L (no) | 1980-03-06 |
ZA794686B (en) | 1980-08-27 |
NO151065C (no) | 1985-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
110E | Request filed for conversion into a national patent application [according to art. 135 epc] | ||
18D | Application deemed to be withdrawn | ||
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ORLANDI, ROBERT GEO |