CN113758385A - Electronic detonator system without initiating explosive - Google Patents
Electronic detonator system without initiating explosive Download PDFInfo
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- CN113758385A CN113758385A CN202111263812.1A CN202111263812A CN113758385A CN 113758385 A CN113758385 A CN 113758385A CN 202111263812 A CN202111263812 A CN 202111263812A CN 113758385 A CN113758385 A CN 113758385A
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- circuit board
- detonator
- delay
- voltage
- explosive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0811—Primers; Detonators characterised by the generation of a plasma for initiating the charge to be ignited
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
Abstract
The invention relates to a priming-free electronic detonator system, belonging to the technical field of priming-free electronic detonator systems; the technical problem to be solved is as follows: the improvement of the hardware structure of the electronic detonator system without the initiating explosive is provided; the technical scheme for solving the technical problem is as follows: the device comprises a detonator without initiating explosive and a three-way connector, wherein the detonator without initiating explosive is hermetically connected with an energy storage driving circuit plastic package body through a clamping waist, external threads are arranged at two ends of the three-way connector, the three-way connector is connected with a bus socket nut provided with corresponding internal threads, a high-voltage charging initiation control circuit board or a high-voltage charging voltage-stabilizing digital communication circuit board is arranged in the three-way connector, and the bus socket nut is connected with a bus of the connecting initiator through a male contact pin; the energy storage driving circuit plastic package body is also internally and plastically packaged with a delay driving circuit, and the output end of the delay driving circuit is externally connected with a detonator leg wire and is connected with the input end of a high-voltage charging detonation control circuit board or a high-voltage charging voltage-stabilizing communication circuit board; the invention is applied to the electronic detonator.
Description
Technical Field
The invention discloses a priming-free electronic detonator system, and belongs to the technical field of priming-free electronic detonator systems.
Background
As shown in fig. 1, a currently used digital electronic detonator adopts a low-voltage capacitor energy storage driving structure with an initiating explosive charge, a control circuit board in the electronic detonator is welded with an energy storage capacitor with a small diameter (the diameter is less than or equal to 6mm) and a low voltage of less than or equal to 25V, a digital circuit and an ignition element, an electronic module integrated with the three components is installed in a metal detonator shell with the same caliber (the inner diameter is =6mm), the electronic module is led out with a plastic leg wire, a two-core insulated copper wire is wrapped in the leg wire, and a two-wire system wiring clamp of an upper box body and a lower box body is connected with the other end of the two-core insulated copper wire, the two-core leg wire is clamped and pressed by a moving part between the upper box body and the lower box body of the two-wire system wiring clamp to carry out electrical connection with a two-wire system field bus, and then the two-system field bus is connected with an initiator.
As shown in fig. 2, the conventional digital electronic detonator system is composed of a metal detonator shell 10, a primary high explosive 20, a secondary high explosive 30, a primary explosive 40, a reinforcing cap 50, a fire transfer cavity 60, a resistance wire ignition head 70, a control circuit board 80, a plastic end socket 90, a leg wire 100, a two-wire binding clip 110 and a two-wire field bus 120; it should be noted that: the control circuit board 80 is integrated with a whole digital circuit and a low-voltage energy storage capacitor, and is manufactured into an integrated circuit module with a small diameter which can be arranged in a detonator shell, and the power supply voltage of the integrated circuit module is less than or equal to 25V; the working mechanism of the digital electronic detonator adopts a mechanism of 'combustion to detonation', the low-voltage capacitive energy is mainly stored in a resistance wire ignition head 70 to discharge and heat ignition powder → flame passes through a fire transfer cavity 60 → the initiating explosive 40 is ignited through a small hole in the center of a reinforcing cap 50 → the initiating explosive 40 is combusted to be converted into detonation → initial detonation wave excites the secondary high explosive 30 to detonate → detonation wave and then outputs strong detonation wave through a primary high explosive 20, wherein a section of the fire transfer cavity 60 without explosive charge is arranged between the resistance wire ignition head 70 and the reinforcing cap 50, the reinforcing cap 50 is filled with the initiating explosive 40 with extremely high mechanical sensitivity (such as nickel hydrazine nitrate or dinitrodiazophenol), the electronic detonator filled with the initiating explosive charge structure is a high-risk product, and the electronic detonator filled with the initiating explosive charge structure is very easy to generate explosion accidents in the using processes of daily production, transportation, storage and blasting engineering, potential safety hazards exist.
Disclosure of Invention
The invention aims to overcome the potential safety hazard of the digital electronic detonator with the initiating explosive and the defect that the control circuit board integrated with all digital circuits and the low-voltage energy storage capacitor in the existing digital detonator can not carry out high-voltage power supply, and solves the technical problems that: the improvement of the hardware structure of the electronic detonator system without the initiating explosive is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: the electronic detonator system without the initiating explosive comprises a detonator without the initiating explosive and a three-way connector, wherein the detonator without the initiating explosive is hermetically connected with the energy storage driving circuit plastic package body through a clamping waist, the three-way connector is a hollow part with two ends and a middle part opened, the two ends are used for being connected with an initiator bus, and the middle part is used for being connected with a detonator leg wire;
external threads are arranged at two ends of the three-way connector, the three-way connector is connected with a bus socket nut provided with corresponding internal threads, an initiation control circuit board or a voltage stabilizing communication circuit board is arranged in the three-way connector, and the bus socket nut is connected with a bus connected with the initiator through a male contact pin;
a leg wire connector is arranged at an opening in the middle of the three-way connector, a delay driving circuit is further plastically packaged in the energy storage driving circuit plastic packaging body, the output end of the delay driving circuit is externally connected with a detonator leg wire, and the detonator leg wire is connected with the input end of the detonation control circuit board or the voltage stabilization communication circuit board through the leg wire connector of the three-way connector;
the explosive structure inside the detonator without the initiating explosive is as follows:
the detonator without the initiating explosive is sequentially provided with a first-stage high explosive, a second-stage high explosive, a reinforcing cap and a third-stage high explosive from inside to outside, and a plasma igniter, a control circuit board and an energy storage capacitor are arranged in the energy storage driving circuit plastic package body;
the control circuit board is a strip-shaped control circuit board, copper-clad foil surfaces are arranged on two sides of the outwards extending end of the control circuit board, the copper-clad foil surfaces are perpendicularly welded with copper-clad foil surface electrodes of the outer side surface A of the plasma igniter, and the inner side surface B of the plasma igniter is tightly attached to the explosive surface of the third-stage high explosive.
The plasma igniter is specifically a printed circuit board with copper foils covered on two sides;
a pair of e1 and e2 surfaces of the copper clad are symmetrically etched on the outer side surface A of the printed circuit board, and metal pad holes are etched on the e1 and e2 surfaces of the copper clad;
a pair of e3 and e4 surfaces of the copper clad foil are symmetrically etched on the inner side surface B of the printed circuit board, and the e3 and e4 surfaces of the copper clad foil are connected through copper bridge foil wires;
the e1 and e2 surfaces of the copper-clad foil are correspondingly and electrically connected with the e3 and e4 surfaces of the copper-clad foil through metal pad holes.
The control circuit board is welded with an analog delay driving circuit, and the output end of the analog delay driving circuit is connected with the input end of the detonation control circuit board through a detonator leg wire;
the analog delay driving circuit is provided with a driving chip IC1, a high-voltage field effect transistor U1, a diode D1, a current-limiting resistor R1, a resistor R2, a delay resistor Rt, a delay capacitor Ct and a high-voltage capacitor Cg;
the output terminals of the analog delay driving circuit are VH, VFB and GND, the output terminals are used as detonator leg wires after being electrically connected by wrapping three-core insulated wires, the detonator leg wires wrapping the three-core insulated wires are correspondingly connected with input terminals b1, b3 and b2 in a detonation control circuit board, pin terminals a1, a3 and a2 are arranged in the detonation control circuit board, the pin terminals a1, a3 and a2 are respectively and correspondingly connected with bus socket nuts of the detonation control circuit board, and the bus socket nuts are connected with a bus connected with a detonator.
Selecting a product of the resistance value of the delay resistor Rt and the resistance value of the delay capacitor Ct to form delay time T, and selecting different delay time T values as different delay time periods T of the analog circuit delay electronic detonator;
setting the delay time of the analog circuit, namely, from instant 0 second, delaying 1ms +/-1%, 5ms +/-1%, 10ms +/-1%, 15ms +/-1%, 20ms +/-1%, 25ms +/-1%, … …, second +/-1% and dividing +/-1%, solidifying and setting to produce analog circuit delay electronic detonators of different T sections;
the high-voltage charging voltage ranges from VH =40V to 150V.
A digital delay driving circuit is welded on the control circuit board, and the output end of the digital delay driving circuit is connected with the input end of the voltage-stabilizing communication circuit board through a detonator leg wire;
the digital time delay driving circuit is provided with a driving chip IC2, a high-voltage field effect transistor U2, a diode D2, a current-limiting resistor R3, a resistor R4 and a high-voltage capacitor Cg;
the output terminals of the digital delay driving circuit are VH, Vcc and GND, the output terminals are used as detonator leg wires after being electrically connected by wrapping three-core insulated wires, the detonator leg wires wrapping the three-core insulated wires are correspondingly connected with input terminals d1, d3 and d2 in a voltage-stabilizing communication circuit board, pin terminals c1 and c2 are arranged in the voltage-stabilizing communication circuit board, the pin terminals c1 and c2 are respectively and correspondingly connected with bus socket nuts of the voltage-stabilizing communication circuit board, and the bus socket nuts are connected with a bus connected with an initiator.
The delay time of a digital circuit in the digital delay driving circuit is T, and can be arbitrarily set in the levels of 1ms, 2ms and 3ms … … seconds through program setting;
the high-voltage charging voltage ranges from VH =40V to 150V.
The first-stage high explosive, the second-stage high explosive and the third-stage high explosive are specifically hexogen RDX or Taian PETN.
Compared with the prior art, the invention has the beneficial effects that: the invention provides an electronic detonator system without initiating explosive, which is an electronic detonator with a non-initiating explosive charging structure with a mechanism of converting plasma shock waves into detonation, is used as an electronic detonator without initiating explosive, is safer in the production, transportation, storage and blasting processes, is convenient to install and use and is more accurate in detonation control compared with the traditional initiating explosive detonator, so that the electronic detonator is prevented from being filled with initiating explosive, and adopts the working mechanism that electric energy stored by high-voltage capacitors discharges in a plasma igniter to instantly generate high-energy plasma shock waves and high explosive is directly excited by the plasma shock waves to form detonation.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of a conventional electronic detonator system with primary explosive;
FIG. 2 is a schematic structural diagram of the interior of a conventional electronic detonator with primary explosive;
FIG. 3 is a schematic structural view of a non-initiating agent electronic detonator system of the present invention;
FIG. 4 is a schematic view of the internal structure of the electronic detonator without the initiating agent of the present invention;
FIG. 5 is a schematic view of the plasma igniter of FIG. 4 illustrating the structure of the surface A;
FIG. 6 is a schematic view of the plasma igniter shown in FIG. 4 illustrating a structure of a B-side;
FIG. 7 is a schematic view of a soldering structure of the control circuit board according to the present invention;
FIG. 8 is a cross-sectional view taken at C-C of FIG. 7;
FIG. 9 is a schematic view of the plasma igniter of FIG. 7 illustrating the structure of the E-face;
FIG. 10 is a top view of FIG. 7;
FIG. 11 is a schematic structural diagram of an internal analog circuit of the electronic detonator of the present invention;
FIG. 12 is a schematic structural diagram of an internal digital circuit of the electronic detonator of the present invention;
in fig. 1 and 2:
10 is a metal detonator shell, 90 is a plastic end socket, 100 is a leg wire, 110 is a two-wire binding clip, 120 is a two-wire field bus, 20 is a primary high explosive, 30 is a secondary high explosive, 40 is an initiating explosive, 50 is a reinforcing cap, 60 is a fire transfer cavity, 70 is a resistance wire ignition head, and 80 is a control circuit board;
in fig. 3 to 12:
in the figure: 200 is a basic detonator without initiating explosive, 300 is an energy storage drive circuit plastic package body, 400 is a detonator leg wire, 500 is a waterproof three-way electronic connector, 510 is an initiation control circuit board, 520 is a voltage-stabilizing communication circuit board, 501 is a bus socket nut, and 502 is a bus for connecting an initiator;
201 is a first-stage high explosive, 202 is a second-stage high explosive, 203 is a reinforcing cap, 204 is a third-stage high explosive, and 205 is a clamping waist;
300 is an energy storage drive circuit plastic package body, 301 is a plasma igniter, 302 is a control circuit board, 303 is an energy storage capacitor, 310 is an e1 surface coated with copper foil, e2 surface, 311 is a metal pad hole, 312 is a copper bridge foil wire, 313 is an e3 surface coated with copper foil, e4 surface and 400 is a detonator leg wire;
an analog delay driving circuit 304 and a digital delay driving circuit 305.
Detailed Description
As shown in FIGS. 3 to 12, the electronic detonator without initiating explosive provided by the invention adopts a high-voltage (150V is more than or equal to VH is more than or equal to 40V) energy storage capacitor, a plasma igniter and a control circuit board which are integrated and injected into a whole, and is assembled with a basic detonator without initiating explosive, thereby forming the electronic detonator without initiating explosive; the control circuit board is welded with an analog delay drive circuit or a digital delay drive circuit;
as shown in fig. 4, the structure of the electronic detonator without initiating agent provided by the invention comprises: the detonator comprises a basic detonator 200 without initiating explosive, a first-stage high explosive 201, a second-stage high explosive 202, a reinforcing cap 203, a third-stage high explosive 204, a clamping waist 205, a capacitance energy storage electronic driving circuit plastic package body, a plasma igniter 301, a control circuit board 302, an energy storage capacitor 303 and a detonator leg wire 400; the high explosive from the first level to the third level is hexogen (RDX) or Taian (PETN); a plasma igniter 301, a control circuit board 302 and an energy storage capacitor 303 are plastically packaged in the capacitor energy storage electronic driving circuit plastic package body; an analog delay driving circuit or a digital delay driving circuit is welded on the control circuit board 302; the plasma ignition end face (B) of the plasma igniter 301 and the explosive surface of the third-stage high explosive 204 are tightly attached to each other without a gap; the non-initiating explosive basic detonator and the capacitor energy storage driving circuit plastic package body are hermetically connected into an integrated non-initiating explosive electronic detonator through the clamping waist 205.
As shown in fig. 5 and 6, the structure of the plasma igniter provided by the present invention is shown, the plasma igniter is made of a double-sided copper clad printed circuit board; the A surface of the printed circuit board is provided with symmetrical copper-clad foil e1, e2 surface 310 and metal pad holes; the surface B of the printed circuit board is provided with symmetrical copper-clad foil e3, surface e4 313 and micron-order line width copper bridge foil lines; the metal pad holes on the surfaces of the copper foils e1 and e2 covered on the printed circuit board A are correspondingly and electrically connected with the surfaces of the copper foils e3 and e4 covered on the printed circuit board B.
As shown in fig. 7, it is a connection diagram of the plasma igniter and the control circuit board in the electronic detonator of the present invention; the two copper-clad surfaces at one end with the narrower dimension of the control circuit board 302 correspond to the copper-clad surfaces of the A surfaces e1 and e2 of the plasma igniter 301 and are vertically welded and connected; FIG. 10 is a plan view of the control circuit board 302, wherein F is the A-side e1, e2 copper clad 310 of the plasma igniter 301 and the double-sided copper clad solder deposit area of the control circuit board 302; reference D in fig. 8 is a D-D sectional view of the control circuit board 302; reference E in fig. 9 is a B-side view of the plasma igniter 301;
the invention provides two embodiments of an electronic detonator without a primary explosive, which specifically comprise: the basic structures of the electronic detonator controlled by the analog circuit delay and the electronic detonator controlled by the digital circuit delay are both shown in fig. 4, the electronic detonators are internally and plastically packaged with a circuit consisting of a plasma igniter 301, a control circuit board 302 and a high-voltage capacitor 303, wherein the control circuit board 302 is respectively welded with an analog delay driving circuit and a digital delay driving circuit.
Embodiment 1, as shown in fig. 11, the schematic circuit block diagram of the initiating explosive-free analog circuit delay electronic detonator system is divided into two parts, one part is a plastic package internal control circuit board 302, and an analog delay driving circuit 304 is welded to the plastic package internal control circuit board, and the analog delay driving circuit includes: the delay electronic detonator part of the detonation-free analog circuit consists of an RLR763-1 analog circuit delay driving chip IC1, a high-voltage field effect tube U1, a diode D1, a current-limiting resistor R1, a resistor R2, a delay resistor Rt, a delay capacitor Ct, a high-voltage capacitor Cg and a plasma igniter DHJ; the other part is a high-voltage charging detonation control circuit board inside the three-way electronic connector 500; the VH, VFB and GND terminals of the control circuit board 302 in the plastic package body are correspondingly connected with the b1, b3 and b2 terminals in the high-voltage charging and initiation control circuit board 510 in the three-way electronic connector through leg wires wrapping three-core insulated wires, the control circuit board 510 is provided with a pin terminal a1, a3 and a2, the pin terminals a1, a3 and a2 are correspondingly connected with a three-wire bus socket nut, and one bus wrapping three-core insulated wire is connected with a three-wire initiator to form the initiating explosive-free analog circuit delay electronic detonator system.
Specifically, the circuit structure of the analog delay driving circuit 304 is as follows:
the Vrc end of the delay driving chip IC1 is connected with one end of a delay resistor Rt, the Vref end of the delay driving chip IC1 is connected with the other end of the delay resistor Rt and then connected with one end of a delay capacitor Ct, the Vk end of the delay driving chip IC1 is connected with one end of a resistor R2 and then connected with the grid of a high-voltage field-effect tube U1, and the drain of the high-voltage field-effect tube U1 is connected with the anode of a diode D1 and one end of a current-limiting resistor R1 and then connected with one electrode of a plasma igniter DHJ; the source electrode of the high-voltage field effect tube U1 is respectively connected with the other end of the resistor R2 and the other end of the delay capacitor Ct in parallel, the GND end of the delay driving chip IC1 is connected with the negative electrode of the high-voltage capacitor Cg, and the positive electrode of the high-voltage capacitor Cg is connected with the other electrode of the plasma igniter DHJ; the other end of the current-limiting resistor R1, the VFB end of the delay driving chip IC1 and the GND end of the delay driving chip IC1 are respectively connected with the detonator leg wire 400.
The product of the Rt value of the delay resistance and the Ct value of the delay capacitor forms delay time T, and different RtT values are selected as different delay time periods T of the analog circuit delay electronic detonator; the delay time of the analog circuit is set from instant 0 second, 1ms plus or minus 1%, 5ms plus or minus 1%, 10ms plus or minus 1%, 15ms plus or minus 1%, 20ms plus or minus 1%, 25ms plus or minus 1%, … …, second plus or minus 1% to produce delay electronic detonators of analog circuits without initiating explosive in different sections T; VH is not less than 150V within the high-voltage charging voltage range of 40V; the VFB end of the RLR763-1 analog circuit delay driving chip IC1 is a trigger signal input end, when the VFB end has a trigger signal high level, Vrc outputs a high level to charge a capacitor Ct through a resistor Rt, when the voltage value charged by the capacitor Ct is increased to Vref, Vk outputs a gate G of a high level trigger field effect tube to enable a drain D and a source S of the field effect tube to be instantly conducted, electric energy stored by a high-voltage capacitor Cg is instantly discharged in a plasma igniter to generate plasma shock waves to excite a third-stage high explosive 204 to detonate, and a second-stage high explosive 202 and a first-stage high explosive 201 generate strong detonation output.
Embodiment 2, as shown in fig. 12, the circuit schematic block diagram of the digital circuit delay electronic detonator system without initiating explosive is divided into two parts, one part is a digital delay driving circuit 305 welded to a control circuit board 302 inside a plastic package body, and the digital delay driving circuit 305 includes: the digital circuit delay electronic detonator part circuit without the initiating explosive, which consists of an RLR763-2 digital circuit delay driving chip IC2, a high-voltage field effect tube U2, a diode D2, a current-limiting resistor R3, a resistor R4, a high-voltage capacitor Cg and a plasma igniter DHJ; the other part is a high-voltage charging low-voltage-stabilizing digital communication control circuit board 520 in the three-way electronic connector 500; the VH, Vcc and GND terminals of the digital delay driving circuit 305 in the plastic package body are correspondingly connected with the d1, d3 and d2 terminals in the high-voltage charging low-voltage stabilizing digital communication control circuit board 520 in the three-way electronic connector 500 through the leg wires wrapped by the three-core insulated wires, the c1 and c2 pin terminals are arranged in the control circuit board 520, the c1 and c2 pins are correspondingly connected with the two-wire bus socket nut, and one bus wraps the two-core insulated wires to be connected with the two-wire detonator, so that the digital delay electronic detonator system without the initiating explosive is formed.
Specifically, the circuit structure of the digital delay driving circuit 305 is as follows:
the VD end of the delay driving chip IC2 is connected with the cathode of a diode D2, the anode of the diode D2 is respectively connected with the drain electrode of a high-voltage field-effect tube U2 in parallel, and one end of a current-limiting resistor R3 is connected with one electrode of a plasma igniter DHJ; the Vk end of the delay driving chip IC2 is connected with one end of a resistor R4 in parallel and then connected with the grid electrode of a high-voltage field-effect tube U2, the source electrode of the high-voltage field-effect tube U2 is connected with the other end of a resistor R4 in parallel respectively, the GND end of the delay driving chip IC2 is connected with the negative electrode of a high-voltage capacitor Cg, and the positive electrode of the high-voltage capacitor Cg is connected with the other electrode of the plasma igniter DHJ; the other end of the current-limiting resistor R3, the Vcc end of the delay driving chip IC2 and the GND end of the delay driving chip IC2 are respectively connected with the detonator pin wire 400.
The delay time T of the digital circuit can be arbitrarily set in the level of 1ms … … seconds by program setting; VH is not less than 150V within the high-voltage charging voltage range of 40V; the RLR763-2 digital circuit delay driving chip IC2 is stored in a register by setting delay time through a program, Vcc and GND ends of an IC2 send out a detonation voltage modulation signal to an IC2 chip through a two-wire system detonator, the IC2 chip receives a detonation instruction and counts according to the set delay time, the counted time is the delay time, Vk outputs high level to trigger a grid G of a field effect tube, so that a drain D and a source S of the field effect tube are instantly conducted, electric energy stored by a high-voltage capacitor Cg is instantly discharged in a plasma igniter to generate plasma shock waves to excite a third-level high explosive 204 to detonate, and the second-level high explosive 202 and the first-level high explosive 201 generate strong detonation output.
It should be noted that, regarding the specific structure of the present invention, the connection relationship between the modules adopted by the present invention is determined and can be realized, except for the specific description in the embodiment, the specific connection relationship can bring the corresponding technical effect, and the technical problem proposed by the present invention is solved on the premise of not depending on the execution of the corresponding software program, the models and the mutual connection modes of the components, modules and specific components appearing in the present invention, and the conventional using method and the expectable technical effect brought by the above technical features, except for the specific description, all belong to the disclosed contents in the patents, journal articles, technical manuals, technical dictionaries, textbooks, or the prior art such as the conventional technology, the common general knowledge in the art, which can be acquired by the skilled in the art before the application date, or belong to the prior art such as the conventional technology, the common general knowledge in the art, and do not need to be described in detail, so that the technical scheme provided by the present invention is clear and can be realized, Is complete and realizable, and can reproduce or obtain corresponding entity products according to the technical means.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The electronic detonator system without the initiating explosive comprises a detonator (200) without the initiating explosive and a three-way connector (500), and is characterized in that: the detonator (200) without the initiating explosive is hermetically connected with the energy storage driving circuit plastic package body (300) through a clamping waist (205), the three-way connector (500) is a hollow part with two ends and a middle part opened, wherein the two ends are used for being connected with an initiator bus (502) in an access mode, and the middle part is used for being connected with a detonator leg wire (400);
external threads are arranged at two ends of the three-way connector (500), the three-way connector (500) is connected with a bus socket nut (501) provided with corresponding internal threads, an initiation control circuit board (510) or a voltage-stabilizing communication circuit board (520) is arranged inside the three-way connector (500), and the bus socket nut (501) is connected with a bus (502) connected with an initiator through a male contact pin;
a leg wire connector is arranged at an opening in the middle of the three-way connector (500), a delay driving circuit is further plastically packaged in the energy storage driving circuit plastic packaging body (300), the output end of the delay driving circuit is externally connected with a detonator leg wire (400), and the detonator leg wire (400) is connected with the input end of the detonation control circuit board (510) or the voltage-stabilizing communication circuit board (520) through the leg wire connector of the three-way connector (500);
the explosive structure in the detonator (200) without the initiating explosive is as follows:
the detonator (200) without the initiating explosive is sequentially provided with a first-stage high explosive (201), a second-stage high explosive (202), a reinforcing cap (203) and a third-stage high explosive (204) from inside to outside, and a plasma igniter (301), a control circuit board (302) and an energy storage capacitor (303) are arranged in the energy storage driving circuit plastic package body (300);
the control circuit board (302) is a strip-shaped control circuit board, two sides of the outwards extending end of the control circuit board (302) are provided with copper-clad surfaces, the copper-clad surfaces are perpendicularly welded with a copper-clad surface electrode of the outer side surface A of the plasma igniter (301), and the inner side surface B of the plasma igniter (301) is tightly attached to the explosive surface of the third-stage high explosive (204).
2. The non-initiating agent electronic detonator system of claim 1 wherein: the plasma igniter (301) is specifically a printed circuit board with copper foils covered on two sides;
a pair of e1 and e2 surfaces (310) of the copper clad are symmetrically etched on the outer side surface A of the printed circuit board, and metal pad holes (311) are etched on the e1 and e2 surfaces (310) of the copper clad;
a pair of e3 and e4 surfaces (313) of the copper clad foil are symmetrically etched on the inner side surface B of the printed circuit board, and the e3 and e4 surfaces (313) of the copper clad foil are connected through a copper bridge foil wire (312);
the e1 and e2 surfaces (310) of the copper-clad foil are correspondingly and electrically connected with the e3 and e4 surfaces (313) of the copper-clad foil through metal pad holes (311).
3. The non-initiating agent electronic detonator system of claim 2 wherein: an analog delay driving circuit (304) is welded on the control circuit board (302), and the output end of the analog delay driving circuit (304) is connected with the input end of the detonation control circuit board (510) through a detonator pin wire (400);
the analog delay driving circuit (304) is internally provided with a driving chip IC1, a high-voltage field-effect tube U1, a diode D1, a current-limiting resistor R1, a resistor R2, a delay resistor Rt, a delay capacitor Ct and a high-voltage capacitor Cg;
the output terminals of the analog delay drive circuit (304) are VH, VFB and GND, the output terminals are used as detonator leg wires (400) after being electrically connected by wrapping three-core insulated wires, the detonator leg wires (400) wrapping the three-core insulated wires are correspondingly connected with input terminals b1, b3 and b2 in a detonation control circuit board (510), pin terminals a1, a3 and a2 are arranged in the detonation control circuit board (510), the pin terminals a1, a3 and a2 are respectively and correspondingly connected with a bus socket nut (501) of the detonation control circuit board (510), and the bus socket nut (501) is connected with a detonator bus (502).
4. The non-initiating-agent electronic detonator system of claim 3 wherein: selecting a product of the resistance value of the delay resistor Rt and the resistance value of the delay capacitor Ct to form delay time T, and selecting different delay time T values as different delay time periods T of the analog circuit delay electronic detonator;
setting the delay time of the analog circuit, namely, from instant 0 second, delaying 1ms +/-1%, 5ms +/-1%, 10ms +/-1%, 15ms +/-1%, 20ms +/-1%, 25ms +/-1%, … …, second +/-1% and dividing +/-1%, solidifying and setting to produce analog circuit delay electronic detonators of different T sections;
the high-voltage charging voltage ranges from VH =40V to 150V.
5. The non-initiating agent electronic detonator system of claim 2 wherein: a digital delay driving circuit (305) is welded on the control circuit board (302), and the output end of the digital delay driving circuit (305) is connected with the input end of the voltage-stabilizing communication circuit board (520) through a detonator pin wire (400);
the digital time delay driving circuit (305) is internally provided with a driving chip IC2, a high-voltage field effect transistor U2, a diode D2, a current-limiting resistor R3, a resistor R4 and a high-voltage capacitor Cg;
the output terminals of the digital delay driving circuit (305) are VH, Vcc and GND, the output terminals are used as detonator leg wires (400) after being electrically connected by wrapping three-core insulated wires, the detonator leg wires (400) wrapping the three-core insulated wires are correspondingly connected with input terminals d1, d3 and d2 in a voltage-stabilizing communication circuit board (520), pin terminals c1 and c2 are arranged in the voltage-stabilizing communication circuit board (520), the pin terminals c1 and c2 are correspondingly connected with a bus socket nut (501) of the voltage-stabilizing communication circuit board (520) respectively, and the bus socket nut (501) is connected with an initiator bus (502).
6. The non-initiating agent electronic detonator system of claim 5 wherein: the delay time of the digital circuit in the digital delay driving circuit (305) is T, and can be arbitrarily set in … … second levels of 1ms, 2ms and 3ms by program setting;
the high-voltage charging voltage ranges from VH =40V to 150V.
7. The non-initiating agent electronic detonator system of claim 1 wherein: the primary high explosive (201), the secondary high explosive (202) and the tertiary high explosive (204) are specifically hexogen RDX or Taian PETN.
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| CN202111263812.1A CN113758385A (en) | 2021-10-28 | 2021-10-28 | Electronic detonator system without initiating explosive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096151A (en) * | 2022-08-24 | 2022-09-23 | 山西宸润隆科技有限责任公司 | High-voltage digital circuit controlled electronic detonator without initiating explosive |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096151A (en) * | 2022-08-24 | 2022-09-23 | 山西宸润隆科技有限责任公司 | High-voltage digital circuit controlled electronic detonator without initiating explosive |
| CN115096151B (en) * | 2022-08-24 | 2022-11-08 | 山西宸润隆科技有限责任公司 | High-voltage digital circuit controlled electronic detonator without initiating explosive |
| CN115597447A (en) * | 2022-08-24 | 2023-01-13 | 山西宸润隆科技有限责任公司（Cn） | High-voltage digital circuit integrated chip controlled electronic detonator without initiating explosive |
| CN115597447B (en) * | 2022-08-24 | 2023-07-21 | 山西宸润隆科技有限责任公司 | Electronic detonator without initiating explosive controlled by high-voltage digital circuit integrated chip |
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