CN217210598U

CN217210598U - High-voltage electric pulse ignition type electronic detonator

Info

Publication number: CN217210598U
Application number: CN202220863763.9U
Authority: CN
Inventors: 周光辉; 陈志斌; 张美足; 林朝键
Original assignee: Fujian Civilian Blasting Chemical Co ltd
Current assignee: Fujian Civilian Blasting Chemical Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-16
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a high-voltage electric pulse ignition type electronic detonator, which belongs to the technical field of civil explosion chemical industry and solves the problems that the prior electronic detonator needs to be fired and has complex and complicated production procedures, refusal explosion and the like. The invention relates to a high-voltage electric pulse ignition type electronic detonator, which comprises a detonator tube shell, wherein one end of the detonator tube shell is closed, the other end of the detonator tube shell is provided with an opening, one closed end of the detonator tube shell is sequentially filled with primary charging, secondary charging and initiating explosive, an electronic control module is arranged inside the detonator tube shell, and an energy storage communication module and a master control system are arranged outside the detonator tube shell; the electronic control module comprises an ignition needle, a working capacitor, an ignition switch and a single chip microcomputer, and the ignition needle is close to the primary explosive; the energy storage communication module comprises an external communication module, an energy storage capacitor and a one-way diode; the single chip microcomputer is connected with the master control system, and the energy storage communication module is connected with the single chip microcomputer. The invention reduces the production danger of the electronic detonator, improves the product reliability and reduces the operation field.

Description

High-voltage electric pulse ignition type electronic detonator

Technical Field

The utility model relates to a civil explosion technical field, concretely relates to high-voltage electric pulse ignition type electronic detonator.

Background

The problems of the existing electronic detonators are gradually shown while the electronic detonators are comprehensively popularized in the industry. The existing digital electronic detonators mainly have the problems that: the ignition part, the electronic control module and the energy storage capacitor are all arranged in the basic detonator, the space is severely limited, the size of the component is restricted, and the capacity of the energy storage capacitor is limited; secondly, the existing electronic detonator ignition part consists of a bridge wire and a priming powder agent, and the ignition element is electrified during the production and use processes, so that the priming powder agent attached to the ignition element is possibly combusted to detonate the detonator, thereby causing potential safety hazards; thirdly, the electronic detonator ignition piece needs a priming powder head to ignite the detonator, the production process of the priming powder head is complex and tedious, most of the priming powder heads need manual operation and transportation, the priming powder head needs a drying workshop or large-scale drying equipment, the drying time is long, the site is occupied, the energy consumption is high, and the whole-line automatic production cannot be realized at present; thirdly, under the operation environment of a small section, a foundation pit and the like, the traditional electronic ignition element is easy to cause the fracture of an ignition bridge wire of the electronic ignition element of the high-delay detonator and the falling or the fracture of an ignition explosive ball attached to the ignition bridge wire due to the high-energy high-frequency instantaneous vibration generated by the blast hole which is firstly exploded when the blast hole of the front low-delay detonator is exploded and the extrusion caused by the fracture of rocks, so that the problem of explosion rejection is generated, and larger hidden troubles are caused to the construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's shortcoming, designing a high-voltage electric pulse ignition type electronic detonator, realizing not having the bridging filament, not having the priming powder, directly detonating basic detonator through high-voltage electric pulse. The production process has the advantages that the steps of bridge wire welding and ignition powder head production are omitted, the automation of electronic detonator ignition element production and electronic detonator finished product assembly line arrangement is realized, the production danger is reduced, the product reliability is improved, the energy is saved, the consumption is reduced, the operation field is reduced, and the like.

In order to achieve the above purpose, the utility model mainly adopts two technical points:

firstly, the ignition needle is directly contacted with or close to the initiating explosive; and secondly, in order to achieve the effect that the high-voltage electric pulse energy is enough to detonate the basic detonator, the energy storage capacitor is moved to the outside of the detonator shell, so that the capacity of the energy storage capacitor can be fully expanded.

The specific technical scheme is as follows:

a high-voltage electric pulse ignition type electronic detonator comprises a detonator shell, wherein one end of the detonator shell is closed, the other end of the detonator shell is provided with an opening, one closed end of the detonator shell is sequentially filled with primary charge, secondary charge and primary explosive, an electronic control module is arranged inside the detonator shell, and an energy storage communication module and a master control system are arranged outside the detonator shell; the electronic control module comprises an ignition needle, a working capacitor, an ignition switch and a single chip microcomputer, and the ignition needle is close to the primary explosive; the energy storage communication module comprises an external communication module, an energy storage capacitor and a one-way diode; the single chip microcomputer is connected with the master control system, and the energy storage communication module is connected with the single chip microcomputer.

Preferably, the single chip microcomputer is connected with the master control system through the PCB, the leg wire and the blasting bus in sequence; the energy storage communication module is connected with the single chip microcomputer through the PCB.

Preferably, the primary explosive is pressed into the reinforcing cap.

Preferably, the distance between the ignition needle and the ignition hole of the reinforcing cap is less than 2 mm

Preferably, the ignition needle is in direct contact with the primary explosive charge.

The foot line is connected with the PCB through the bonding pad.

The welding disc, one end of the pin wire, the electronic control module and the energy storage communication module are packaged into a whole through injection molding, and a plastic injection molding head is formed.

The master control system comprises a display screen, a power key and a mode key.

Besides the master control system, a hand-held set can be added, and the hand-held set can be in wireless connection with the master control system. The handset comprises a display screen, a relevant integrated module, a CPU, a power supply and the like. The hand-held machine can control the master control system to realize the detonation of the detonator according to a set program.

The ignition needle is a cylinder and is divided into three layers, wherein the middle layer is made of insulating materials, and the other two layers are made of copper.

The leg wire is connected with the blasting bus through the wire clamp.

The working principle of the utility model is that high-voltage electric pulse is adopted to detonate the primary explosive and further detonate the detonator, and the ignition element adopts an ignition needle. The electronic control module is arranged in the detonator shell and used for controlling detonation information and delaying time. The energy storage communication module is arranged outside the detonator shell and used for communicating and matching with the electronic control module and providing detonating pulse energy to detonate the detonator.

The electronic control module comprises an ignition needle, a working capacitor, an ignition switch and a single chip microcomputer and is composed of a high-precision timing circuit, a communication circuit, a safety protection circuit, a password management and control circuit, a high-energy conversion circuit and a high-energy ignition needle. Before the detonation, the detonation is detected through various safety management function programs, otherwise, the energy storage communication module cannot work and cannot excite the ignition needle to ignite, and therefore safety management is achieved.

The electronic control module is connected with a blasting bus of the master control system through the line card, the energy storage communication module is used for storing ignition electric energy and communicating with the built-in control module, and after the energy storage communication module is matched with the built-in control module to check normally, the energy storage communication module can be charged so as to achieve safety management, and a detonation instruction is sent to detonate the detonator through the master control system or the hand-held set. The voltage of the energy storage communication module is between 1000V and 2000V (determined according to the sensitivity of the initiating explosive selected by the detonator).

The blasting bus is connected with a master controller, the master controller supplies power to the blasting bus, the delay time of the electronic control module is set by the master control system, and the master control system can be connected with wireless handheld equipment to realize remote control.

The handset is connected with the master control system in a wireless connection mode. The remote operation can be realized through the handset, the functions of online detonator communication condition inspection, delay time setting, GPS positioning and the like are realized.

The utility model discloses the working process is as follows: after the subassembly components are successfully connected, operations such as online recording and delay time setting are performed through the handset, and a power supply is provided through the master control system; the single chip microcomputer on the electronic control module detects various safety management function programs, and after the safety management function programs pass the detection, the main control system can charge the external energy storage capacitor; after the completion of charging, assign the detonation instruction through total control system and give electronic control module, closed ignition switch, external energy storage capacitor passes through the PCB board with energy transfer to the ignition, the ignition needle arouses high-voltage electric pulse detonation detonator.

Adopt the utility model discloses afterwards, realize that high-voltage electric pulse detonates electronic detonator, compare with original explosive ball detonation electronic detonator and have following beneficial effect:

the ignition element has no bridge wire and no priming powder, so that the on-off detection process of the bridge wire is omitted, and the potential safety hazard that the priming powder attached to the ignition element is possibly combusted to detonate a detonator and other misoperation caused by the fact that the ignition element is electrified during detection in the production and use processes is avoided. And secondly, the risk of explosion rejection caused by the broken falling of the explosive balls and the breakage of the bridge wire of the ignition element is avoided in the using process, the electronic control module is protected, and the problem of product explosion rejection in the blasting process of small sections and foundation pits can be solved. Thirdly, a high-voltage electric pulse detonation mode is used, and an ignition element does not need to be coated with flammable and explosive chemical agents, so that the production safety is facilitated. Fourthly, the steps of bridge wire welding and ignition powder head production are omitted, the automation of electronic detonator ignition element production and electronic detonator finished product assembly line completion is realized, the production danger is reduced, the product reliability is improved, the energy is saved, the consumption is reduced, the operation field is reduced, and the like.

Drawings

Fig. 1 is a schematic structural view of the high-voltage electric pulse ignition type electronic detonator of the present invention;

fig. 2 is a schematic diagram of the circuit of the high-voltage electric pulse ignition type electronic detonator of the present invention.

The symbols in the figure represent:

1. the explosive blasting machine comprises a primary explosive charging device 2, a secondary explosive charging device 3, a primary explosive charging device 4, a detonator shell 5, an electronic control module 6, a PCB 7, an injection molding head 8, an energy storage communication module 9, a leg wire 10, a wire clamp 11, a blasting bus 12 and a master control system

5.1, ignition needle 5.2, working capacitor 5.3, ignition switch 5.4 and single chip microcomputer

8.1, external communication module 8.2, energy storage capacitor 8.3, one-way diode

8.4 bonding pad 9.1, wire core 9.2, insulating layer

Detailed Description

As shown in fig. 1, a high-voltage electric pulse ignition type electronic detonator mainly comprises a basic detonator, an energy storage communication module 8, an electronic control module 5, a master control system 12, a handset and the like. The basic detonator comprises a detonator shell 4, one end of the detonator shell 4 is closed, the other end of the detonator shell 4 is provided with an opening, the closed end of the detonator shell 4 is sequentially filled with primary charge 1, secondary charge 2 and primary explosive 3, a reinforcing cap can be added outside the primary explosive, an electronic control module 5 is further arranged inside the detonator shell 4, and an energy storage communication module 8 and a master control system 12 are arranged outside the detonator shell 4; the electronic control module 5 comprises an ignition needle 5.1, a working capacitor 5.2, an ignition switch 5.3 and a single chip microcomputer 5.4, wherein the ignition needle 5.1 is directly contacted with the initiating explosive 3, or the ignition needle 5.1 is close to the initiating explosive 3, if a reinforcing cap exists, the distance between the ignition needle and the ignition hole of the reinforcing cap is less than 2 mm, the ignition needle 5.1 is a cylinder and is divided into three layers, the middle layer is made of an insulating material, and the other two layers are made of copper; as shown in fig. 1 and 2, the energy storage communication module 8 includes an external communication module 8.1, an energy storage capacitor 8.2, a one-way diode 8.3 and a bonding pad 8.4, the single chip microcomputer 5.4 is connected with a master control system 12 through a PCB 6, a leg wire 9 and a blasting bus 11 in sequence, and the energy storage communication module 8 is connected with the single chip microcomputer 5.4 through the PCB 6; electronic control module 5 all sets up on PCB board 6 with energy storage communication module 8, 9.1 sinle silk of foot line 9 weld with pad 8.4 on PCB board 6 earlier, and PCB board 6 and foot line 9's one end and electronic control module 5, energy storage communication module 8 are moulded plastics through injection moulding plastic head 7 and are become integrative, and foot line 9 passes through ply-yarn drill 10 and is connected with blasting generating line 11. As shown in fig. 1, the general control system 12 includes a display screen 12.1, a power key 12.2 and a mode key 12.3. Besides the master control system, a handset can be added, and the handset comprises a display screen, a related integrated module, a CPU, a power supply and the like. After the connection of all detonators is completed, the master control system and the power supply of the handheld machine are started, after the wireless connection is successful, the detonators can be recorded on line, the master control system rapidly transmits detonator information to the handheld machine, and the handheld machine can set delay time of detonator detonation in batches.

The utility model discloses a theory of operation does: after the components are successfully connected, the operations such as online recording and delay time setting are carried out through the handset, and a power supply is provided through the master control system 12; the singlechip 5.1 on the electronic control module 5 carries out security password detection, and after the detection is passed, the master control system 12 can charge the energy storage capacitor 8.2; after charging, a detonation instruction is given to the electronic control module 5 through the master control system 12, the ignition switch 5.3 is closed, the energy storage capacitor 8.2 transmits energy to the ignition part 5.1 through the PCB 6, and the ignition needle 5.1 excites high-voltage electric pulse to detonate the detonator.

Claims

1. A high-voltage electric pulse ignition type electronic detonator comprises a detonator shell (4), wherein one end of the detonator shell (4) is closed, the other end of the detonator shell is provided with an opening, and the closed end of the detonator shell (4) is sequentially filled with a primary charge (1), a secondary charge (2) and a primary explosive (3), and is characterized in that an electronic control module (5) is arranged inside the detonator shell (4), and an energy storage communication module (8) and a master control system (12) are arranged outside the detonator shell (4); the electronic control module (5) comprises an ignition needle (5.1), a working capacitor (5.2), an ignition switch (5.3) and a single chip microcomputer (5.4), and the ignition needle (5.1) is close to the primary explosive (3); the energy storage communication module (8) comprises an external communication module (8.1), an energy storage capacitor (8.2) and a one-way diode (8.3); the single chip microcomputer (5.4) is connected with a master control system (12), and the energy storage communication module (8) is connected with the single chip microcomputer (5.4).

2. The high-voltage electric pulse ignition type electronic detonator according to claim 1, wherein the single chip microcomputer (5.4) is connected with a master control system (12) sequentially through a PCB (6), a leg wire (9) and a blasting bus (11); the energy storage communication module (8) is connected with the singlechip (5.4) through the PCB (6).

3. The high-voltage electric pulse ignition type electronic detonator according to claim 1 or claim 2, wherein a reinforcing cap is further pressed into the primary explosive (3).

4. The electronic detonator of claim 3, wherein the distance between the ignition needle (5.1) and the ignition hole of the reinforcement cap is less than 2 mm.

5. The high-voltage electric pulse ignition type electronic detonator as claimed in claim 1 or 2, wherein said ignition needle (5.1) is in direct contact with the primary explosive (3).

6. The high-voltage electric pulse ignition type electronic detonator as claimed in claim 2, wherein said leg wire (9) is connected to the PCB board (6) through a pad (8.4).

7. The high-voltage electric pulse ignition type electronic detonator according to claim 6, wherein the bonding pad (8.4), one end of the leg wire (9), the electronic control module (5) and the energy storage communication module (8) are encapsulated into a whole by injection molding, and the injection molding head (7) is formed.

8. The high-voltage electric pulse ignition type electronic detonator according to claim 1 or claim 2, wherein the general control system (12) comprises a display screen (12.1), a power key (12.2) and a mode key (12.3).

9. The high-voltage electric pulse ignition type electronic detonator according to claim 1 or claim 2, further comprising a handset, wherein the handset can be wirelessly connected with an overall control system.

10. The high-voltage electric pulse ignition type electronic detonator according to claim 1 or claim 2, wherein the ignition needle (5.1) is a cylinder, and is divided into three layers, wherein the middle layer is made of an insulating material, and the other two layers are made of copper.

11. The high-voltage electric pulse ignition type electronic detonator according to claim 2 or claim 6, wherein the leg wire (9) is connected to the blast bus (11) through a line card (10).