CN113639599A - Ignition-powder-free digital electronic detonator - Google Patents
Ignition-powder-free digital electronic detonator Download PDFInfo
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- CN113639599A CN113639599A CN202110953369.4A CN202110953369A CN113639599A CN 113639599 A CN113639599 A CN 113639599A CN 202110953369 A CN202110953369 A CN 202110953369A CN 113639599 A CN113639599 A CN 113639599A
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- detonator
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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
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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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Abstract
The invention relates to a digital electronic detonator without ignition powder, comprising: the control circuit board divides the internal space of the detonator shell into two cavities, namely an electronic element accommodating cavity and a medicament filling cavity, wherein a priming medicament is filled in the medicament filling cavity, an SCB semiconductor bridge ignition element is arranged at the front end of the control circuit board, the control circuit board covers the priming medicament, the SCB semiconductor bridge ignition element is embedded in the priming medicament, an energy storage capacitor is arranged on the control circuit board, the SCB semiconductor bridge ignition element and the energy storage capacitor are both connected with a detonator control chip of the control circuit board, and the energy storage capacitor can provide ignition electric energy for the SCB semiconductor bridge ignition element; the control circuit board comprises an anti-static circuit, and the anti-static circuit is connected with the detonator control chip and electrically connected with the detonator shell. The method and the device can improve the detonation success rate of the digital electronic detonator.
Description
Technical Field
The invention relates to the technical field of electronic detonators, in particular to a digital electronic detonator without ignition powder.
Background
The gunpowder detonator is used for mountain blasting and tunnel excavation, has been used for a long time in history, needs to be distributed with a long-distance lead, and detonates the detonator through an ignition lead, so that blasting is carried out, the long-distance lead can be extinguished midway to cause that the detonator cannot be successfully detonated, or a worker checks whether the lead is not determined to be extinguished, and the life safety of the worker cannot be guaranteed. The digital electronic detonator, namely the detonator which adopts an electronic control module to control the detonation process, is essentially characterized in that a control module containing a micro electronic chip is used for driving an ignition head; the electronic control module is a special circuit module which is arranged in the digital electronic detonator, has functions of detonator detonation delay time control and detonation energy control, can test functions and performances of the electronic control module and can communicate with a detonation controller and other external control equipment.
As shown in fig. 1, the existing digital electronic detonator comprises a leg wire 101, a rubber stopper 102, a tube shell 103, a detonator electronic module 104, a explosive head 105, a reinforcing cap 106 and an initiating explosive 107, wherein the explosive head 105 in fig. 1 is specifically a resistance bridge wire, and the upper surface of the resistance bridge wire is dipped with ignition powder (the sensitivity is high and the intensity is low); when in ignition, the bridge wire is electrified to generate heat, ignition powder is ignited, and the ignition powder is exploded to ignite the primary explosive (the sensitivity is moderate, and the intensity is moderate); the primary explosive explodes to ignite the explosive outside the detonator (low sensitivity and high intensity).
However, the ignition powder on the bridge wire in the traditional Chinese medicine head part of the digital electronic detonator has high sensitivity, so that sparks, static electricity and even collision can cause the ignition powder to be ignited, and further the initiation powder is detonated, so that the whole detonator is exploded, and casualties and property loss are caused; in addition, the bridge wire is a thin metal wire on two electrodes, the bridge wire is put into a medicament to dip the medicament in the prior art and then assembled on a PCB, the bridge wire is possibly broken in the process, the process has to be manually operated, automation cannot be realized, and the labor cost is high. As can be seen from fig. 1, the powder head 105 is located at the outer side of the primary explosive 107, when the detonator is subjected to severe vibration, the primary explosive may become loose, and the spark generated after the powder head is electrified may only ignite a part of the primary explosive which is relatively close to the powder head, so that the detonator cannot be completely detonated, and a working accident is caused; the loose medicament may leak onto the PCB board, causing damage to the electronic components, particularly the metal dome.
Disclosure of Invention
Therefore, it is necessary to provide a digital electronic detonator without ignition powder to solve the problems in the prior art.
An ignition-powder-free digital electronic detonator, comprising: the control circuit board divides the internal space of the detonator shell into two cavities, namely an electronic element accommodating cavity and a medicament filling cavity, the medicament filling cavity is filled with initiating medicament, the front end of the control circuit board is provided with an SCB semiconductor bridge ignition element, the control circuit board covers the initiating medicament, the SCB semiconductor bridge ignition element is embedded into the initiating medicament, the control circuit board is provided with an energy storage capacitor, the SCB semiconductor bridge ignition element and the energy storage capacitor are both connected with a detonator control chip of the control circuit board, and the energy storage capacitor can provide ignition electric energy for the SCB semiconductor bridge ignition element; the control circuit board comprises an anti-static circuit, and the anti-static circuit is connected with the detonator control chip and electrically connected with the detonator shell.
In one embodiment, a groove which is matched with the energy storage capacitor in shape is formed in the tail of the control circuit board, and the energy storage capacitor is embedded into the groove for fixing.
In one embodiment, the tail part of the control circuit board is provided with a through hole which is matched with the energy storage capacitor in shape, and the energy storage capacitor is embedded into the through hole for fixing.
In one embodiment, the detonator comprises a pipe plug, wherein one end of the detonator shell is closed, and the other end of the detonator shell is open, and the pipe plug is arranged at the open end of the detonator shell.
In one embodiment, the control circuit board comprises a pin wire bonding pad, the pin wire bonding pad is arranged at the tail part of the control circuit board and is positioned in an electronic component accommodating cavity in the shell of the detonator, and the pin wire bonding pad is used for welding a pin wire.
In one embodiment, the anti-static circuit comprises a spring piece and a TVS transient suppression diode, the spring piece is in contact with the detonator shell through the elasticity of the spring piece and forms an electric connection with the detonator shell, the spring piece is connected with the TVS transient suppression diode, and the TVS transient suppression diode is connected with the detonator control chip.
In one embodiment, the anti-static circuit comprises a spring plate, a TVS transient suppression diode and an electrostatic impeder, wherein the spring plate is in contact with the shell of the detonator through the elasticity of the spring plate and forms an electric connection, the electrostatic impeder is connected with the spring plate in series and then connected with the TVS transient suppression diode in parallel, and the TVS transient suppression diode is connected with the detonator control chip.
In one embodiment, the anti-static circuit further comprises a rectifier bridge, and the bus is connected with the rectifier bridge and then connected with the detonator control chip.
In one embodiment, the detonator shell is in a metal cylindrical shape, the energy storage capacitor is in a cylindrical shape, and the axis of the energy storage capacitor coincides with the axis of the detonator shell when the tail end of the control circuit board is fixed.
According to the digital electronic detonator without the ignition powder, the inner part of the detonator is divided into an upper space and a lower space through the control circuit board, one space is used for containing electronic elements, and the other space is used for containing initiating agents; meanwhile, the control circuit board covers the initiating explosive agent, and the two separated spaces can prevent the initiating explosive agent from flowing into the electronic element accommodating cavity, so that the electronic element is damaged.
The energy storage capacitor can provide sufficient electric quantity for the SCB semiconductor bridge ignition element for the large-capacity capacitor, guarantees the ignition success rate of the SCB semiconductor bridge ignition element, and the tail end of the energy storage capacitor control circuit board and the energy storage capacitor have the effect of a pipe plug.
Under the prerequisite that uses big electric capacity, the phenomenon that probably produces accidental discharge between circuit board and the tube more, this problem can be solved effectively to antistatic circuit among the technical scheme to the form of shell fragment is connected with the tube and is do benefit to the equipment more.
Drawings
FIG. 1 is a schematic structural diagram of a conventional digital electronic detonator;
FIG. 2 is a cross-sectional view of an exemplary embodiment of a digital electronic detonator without ignition charge;
FIG. 3 is a perspective view of an embodiment of a digital electronic detonator without ignition charge;
FIG. 4 is a perspective view of a digital electronic detonator without ignition powder in another embodiment;
FIG. 5 is a circuit configuration diagram of a detonator control chip in one embodiment;
FIG. 6 is a circuit configuration diagram of an anti-static circuit according to an embodiment;
FIG. 7 is a circuit configuration diagram of an antistatic circuit in another embodiment;
fig. 8 is a circuit configuration diagram of an antistatic circuit in another embodiment.
1-a control circuit board; 101-leg line; 102-rubber stopper; 103-a tube shell; 104-a detonator electronic module; 105-medicine head; 106-a reinforcement cap; 107-primary explosive; 2-detonator control chip; 3-an anti-static circuit; 4-an energy storage capacitor; 5-a leg wire pad; 6-working capacitance; a 7-SCB semiconductor bridge ignition element; 9-pipe plug; 10-detonator shell; 11-a through hole; 21-a power supply module; 22-LDO module; 23-a charge switch; 24-a discharge switch; 25-an ignition switch; 221-LDO capacitance; 31-a spring plate; a 32-TVS transient suppression diode; 33-an electrostatic impeder; 41-electronic component accommodating cavity; 42-the medicament filling cavity.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
In one embodiment, as shown in fig. 2 and 3, the ignition-free digital electronic detonator comprises a detonator shell 10 and a control circuit board 1 packaged in the detonator shell 10, the control circuit board 1 divides the internal space of the detonator shell 10 into two cavities, namely an electronic component accommodating cavity 41 and a medicament filling cavity 42, the explosive filling cavity 42 is filled with initiating explosive, the front end of the control circuit board 1 is provided with an SCB semiconductor bridge ignition element 7, the control circuit board 1 covers the initiating explosive, the SCB semiconductor bridge ignition element 7 is embedded in the initiating explosive, the control circuit board 1 is provided with an energy storage capacitor 4, the SCB semiconductor bridge ignition element 7 and the energy storage capacitor 4 are both connected with the detonator control chip 2 of the control circuit board 1, and the energy storage capacitor 4 can provide ignition electric energy for the SCB semiconductor bridge ignition element 7; the control circuit board 1 comprises an anti-static circuit 3, and the anti-static circuit 3 is connected with the detonator control chip 2 and electrically connected with the detonator shell 10.
The initiating explosive is in the shape of a powder column on the detonator shell 10, the powder column can be prefabricated and compacted in advance, the powder column is very tight, and the problem of loose vibration of the explosive cannot occur. The width of the control circuit board is equal to the inner diameter of the detonator shell 10, and the inner space of the detonator shell can be divided into two closed spaces. The SCB ignition head can generate ion flow perpendicular to the detonation of the PCB after being electrified, the ion flow can change direction when encountering the tube shell, and the ion flow is refracted for many times in the medicament filling cavity, so that the initiating explosive can be fully ignited, and the initiating explosive can be fully detonated even if the initiating explosive is loose.
The control circuit board 1 may be a PCB, the control circuit board 1 divides a horizontal detonator shell into an upper cavity and a lower cavity, as shown in fig. 2, the SCB semiconductor bridge ignition element 7 is disposed at the bottom (the surface contacting with the initiating explosive) of the control circuit board 1, and the SCB semiconductor bridge ignition element 7 is embedded in the initiating explosive. The existing digital electronic detonator mostly adopts a chip capacitor, the capacity of the chip capacitor is low, and the chip capacitor is not enough to support an ignition head with larger ignition power. In this embodiment, the capacitance of the energy storage capacitor is greater than 100 μ f, the energy storage capacitor is a large-capacity electrolytic capacitor, and the energy storage capacitor needs to be transversely placed at the tail end of the control circuit board to be placed in the detonator shell.
Working principle of the SCB semiconductor bridge ignition element: the action element is a thin semiconductor film, the semiconductor film is heated and vaporized until breakdown by the current pulse from an energy storage system flowing through a semiconductor bridge, high-temperature and high-pressure plasma is formed, scorching silicon plasma particles penetrate into a pyrotechnic agent or a high-energy explosive adjacent to the scorching silicon plasma particles through micro-convection motion and are condensed on the particles, and energy is transferred to the pyrotechnic agent or the high-energy explosive particles to induce chemical reaction, so that the pyrotechnic agent or the high-energy explosive particles are ignited. Wherein the SCB semiconductor bridge ignition element may be a polysilicon semiconductor bridge SCB resistance igniter. Energy storage capacitor can fix at the control circuit board tail end through sticky mode, and energy storage capacitor level when fixed sets up to the height of minimize control circuit board avoids detonator shell diameter too big, the packing of inconvenient initiating explosive agent. The detonator control chip 2 can be an ASIC chip and is used for controlling the circuit of the control circuit board, including the control of the opening of the control switch and the charging and discharging of the energy storage capacitor. Specifically, the SCB semiconductor bridge ignition element is fixed on the side surface of the front end of the control circuit board.
The detonator shell is of a metal structure, and can be specifically made of aluminum, iron, steel and the like. The detonator shell is cylindrical, rectangular cylindrical, semi-cylindrical and the like. One end of the detonator shell is open, the other end of the detonator shell is closed, and the closed end is used for filling initiating explosive.
According to the digital electronic detonator without the ignition powder, the inner part of the detonator is divided into an upper space and a lower space through the control circuit board, one space is used for containing electronic elements, and the other space is used for containing initiating explosive, so that the volume of the initiating explosive in the digital electronic detonator can be increased, and the initiating success rate of the digital electronic detonator is ensured; meanwhile, the control circuit board covers the initiating explosive agent, and the two separated spaces can prevent the initiating explosive agent from flowing into the electronic element accommodating cavity, so that the electronic element is damaged; the energy storage capacitor can provide sufficient electric quantity for the SCB semiconductor bridge ignition element for the large-capacity capacitor, guarantees the ignition success rate of the SCB semiconductor bridge ignition element, and the tail end of the energy storage capacitor control circuit board and the energy storage capacitor have the effect of a pipe plug.
In one embodiment, as shown in fig. 3, a groove 11 adapted to the shape of the energy storage capacitor 4 is formed at the tail of the control circuit board 1, and the energy storage capacitor is embedded in the groove 11 for fixation. The standard size of detonator shell, its radius is less than the diameter of capacitor commonly used, that is to say the energy storage electric capacity can not directly be placed in electronic component holds the chamber, and this embodiment is slotted on the PCB board, makes energy storage electric capacity eccentric settings inside the detonator, and its most part volume lies in electronic component and holds the chamber, invades the charge area as far as possible.
Wherein, the energy storage capacitor can be fixed in the groove in an adhesive manner.
In one embodiment, as shown in fig. 4, a through hole corresponding to the shape of the energy storage capacitor 4 is formed at the tail of the control circuit board 1, and the energy storage capacitor is embedded into the through hole for fixation.
In one embodiment, as shown in fig. 2, the ignition-free digital electronic detonator further comprises a pipe plug 9, wherein one end of the detonator shell 10 is closed, and the other end of the detonator shell is open, and the pipe plug 9 is arranged at the open end of the detonator shell 10. Wherein, the pipe plug seals one end of the opening of the shell of the detonator.
In one embodiment, as shown in fig. 3, the control circuit board 1 includes a wire pad 5, the wire pad 5 is disposed at the rear of the control circuit board 1 and located in the electronic component accommodating cavity 41 in the detonator shell 10, and the wire pad 5 is used for soldering a wire. The two foot line pads 5 are distributed on two sides of the energy storage capacitor 4, each foot line pad is electrically connected with one foot line, the foot lines are connected with a bus, and the bus is connected with the detonator.
In one embodiment, as shown in fig. 6, the anti-static circuit 3 comprises a spring 31 and a TVS transient suppression diode 32, the spring 31 is in contact with the detonator shell 10 through its elasticity and forms an electrical connection, the spring 31 is connected with the TVS transient suppression diode 32, and the TVS transient suppression diode 32 is connected with the detonator control chip 2.
Two TVS transient suppression diodes 32 are connected in series and then connected between two leg wires, and the elastic sheet 31 is connected between the two TVS transient suppression diodes 32.
The energy storage capacitor 4 needs to be charged, when the charging is carried out, voltage is arranged on the leg wire, a potential difference is formed between the leg wire and the metal detonator shell, a circuit with a TVS transient suppression diode 32 is arranged between the leg wire and the detonator shell, and when the voltage of the leg wire rises sharply, overlarge current is absorbed, so that electric sparks are avoided. In this embodiment, the spring plate can be replaced by a contact, and the contact is welded to the shell of the detonator.
The anti-static circuit 3 is used for eliminating the potential difference between the detonator shell and the control circuit board, the potential difference is easy to discharge to generate sparks, particularly, when lightning strike and other conditions occur, the sparks are easy to cause the false explosion of the detonator, and the potential difference can be eliminated through the arrangement of the anti-static circuit 3 to avoid the false explosion of the detonator.
In one embodiment, as shown in fig. 7, the anti-static circuit 3 comprises a spring plate 31, a TVS transient suppression diode 32 and an electrostatic impeder 33, the spring plate 31 is in contact with and electrically connected with the detonator shell 10 through the elasticity of the spring plate, the electrostatic impeder 33 is connected with the spring plate 31 in series and then connected with the TVS transient suppression diode 32 in parallel, and the TVS transient suppression diode 32 is connected with the detonator control chip 2. The spring 31 is connected to an interface of the electrostatic impedance 33.
The TVS transient suppression diode 32 is connected between the two leg wires, and an electrostatic discharge (ESD) resistor 33 and the TVS transient suppression diode 32 are also connected between the two leg wires. In this embodiment, the electrostatic discharge prevention circuit 3 can prevent the generation of electrostatic sparks even under a large current.
In one embodiment, as shown in fig. 8, the anti-static circuit 3 further includes a rectifier bridge, and the bus is connected to the detonator control chip 2 after being connected to the rectifier bridge.
The bus (not shown in the figure) is connected with the exploder (not shown in the figure), one exploder can be connected with a plurality of digital electronic detonators through the bus, the bus is connected with the leg wires of the digital electronic detonators, and the exploder is used for transmitting instructions and charging to the digital electronic detonators.
The rectifier bridge, TVS transient suppression diode 32 and electrostatic resistor 33 are connected in parallel between the two leg wires. As shown in fig. 8, compared with fig. 7, a rectifier bridge composed of four diodes is added on the right side, so that current backflow in the digital electronic detonator can be prevented, and the bus is electrified; the working mode of the digital electronic detonator is as follows: the primer passes through the generating line and is connected with digital electronic detonator's leg line, a plurality of pieces of digital electronic detonator of parallelly connected on the generating line, when the primer sends detonation instruction, the primer is to the generating line power supply, each digital electronic detonator begins to charge, charge and finish the back primer and stop the power supply, the detonator begins the time delay and waits to ignite, so this section time generating line of back that finishes of charging does not have the electric current, if there is digital electronic detonator to break down, wherein electric capacity on the control circuit board can put the electric current back to the generating line on, produce the potential safety hazard, this application passes through rectifier bridge's design, can avoid this potential safety hazard.
In one embodiment, as shown in fig. 2, the detonator shell 10 is a metal cylinder, the energy storage capacitor 4 is a cylinder, and the axis of the energy storage capacitor 4 coincides with the axis of the detonator shell 10 when the tail end of the control circuit board 1 is fixed.
In this embodiment, the cylindrical energy storage capacitor is embedded in the through-hole of PCB board to coaxial with the detonator shell, can reduce the radius of detonator shell, guarantee that initiating explosive agent fills the radius.
In one embodiment, the energy storage capacitor 4 is a cylindrical electrolytic capacitor and is arranged at the opening at the tail end of the detonator shell, and the capacitance value of the energy storage capacitor is greater than or equal to 100 muf.
In one embodiment, as shown in fig. 5, the detonator control chip 2 includes a power module 21, an LDO module 22, a charge switch 23, a discharge switch 24, an ignition switch 25, and an LDO capacitor 26, the power module 21 is connected in series with the charge switch 23 and then connected to the energy storage capacitor 4, the discharge switch 24 is connected to the energy storage capacitor 4, the ignition switch 25 is connected in series with the SCB semiconductor bridge ignition element 7 and then connected to the energy storage capacitor 4, and the LDO module 22 is connected in parallel with the power module 21.
Wherein, power module 21 is connected with the detonator through the leg, and power module 21 is used for charging to energy storage capacitor 4 after being connected with energy storage capacitor 4, and LDO module 22 constitutes voltage stabilizing module with working capacitor 6 and LDO electric capacity 221 jointly and is used for the voltage of stable power module 21 output, and energy storage capacitor 4 will store the electric quantity release through discharge switch 24, when needing the ignition again, ignition switch 25 is closed, and energy storage capacitor 4 provides the electric quantity ignition to SCB semiconductor bridge ignition element.
In one embodiment, the initiating explosive is one or more of DDNP, GTX and nickel hydrazine nitrate.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The digital electronic detonator without the ignition powder is characterized by comprising a detonator shell (10) and a control circuit board (1) packaged in the detonator shell (10), wherein the control circuit board (1) divides the internal space of the detonator shell (10) into two cavities, namely an electronic element accommodating cavity (41) and a medicament filling cavity (42); the explosive charge cavity (42) is filled with an explosive, an SCB semiconductor bridge ignition element (7) is arranged at the front end of the control circuit board (1), the control circuit board (1) covers the explosive, the SCB semiconductor bridge ignition element (7) is embedded in the explosive, an energy storage capacitor (4) is arranged on the control circuit board (1), the SCB semiconductor bridge ignition element (7) and the energy storage capacitor (4) are both connected with a detonator control chip (2) of the control circuit board (1), and the energy storage capacitor (4) can provide ignition electric energy for the SCB semiconductor bridge ignition element (7); the control circuit board (1) comprises an anti-static circuit (3), and the anti-static circuit (3) is connected with the detonator control chip (2) and electrically connected with the detonator shell (10).
2. The digital electronic detonator without the ignition powder according to claim 1, wherein a groove (11) which is adapted to the shape of the energy storage capacitor (4) is formed at the tail part of the control circuit board (1), and the energy storage capacitor (4) is embedded into and fixed to the groove (11).
3. The ignition-free digital electronic detonator as claimed in claim 1, wherein the tail of the control circuit board (1) is provided with a through hole which is adapted to the shape of the energy storage capacitor (4), and the energy storage capacitor (4) is embedded into the through hole for fixation.
4. The digital electronic detonator without the ignition agent according to claim 3, wherein the detonator shell (10) is in a metal cylinder shape, the energy storage capacitor (4) is in a cylinder shape, and the axis of the energy storage capacitor (4) coincides with the axis of the detonator shell (10) when the tail end of the control circuit board (1) is fixed.
5. The ignition-free digital electronic detonator according to claim 1, further comprising a plug (9), wherein the detonator shell (10) is closed at one end and open at the other end, and the plug (9) is disposed at the open end of the detonator shell (10).
6. The ignition-free digital electronic detonator according to claim 1, wherein the control circuit board (1) comprises a leg wire bonding pad (5), the leg wire bonding pad (5) is arranged at the tail part of the control circuit board (1) and is positioned in an electronic component accommodating cavity (41) in the detonator shell (1), and the leg wire bonding pad (5) is used for welding a leg wire.
7. The digital electronic detonator without the ignition charge as claimed in claim 1, wherein the anti-static circuit (3) comprises a spring plate (31) and a TVS transient suppression diode (32), the spring plate (31) is in contact with the detonator shell (1) through self elasticity and forms an electrical connection, the spring plate (31) is connected with the TVS transient suppression diode (32), and the TVS transient suppression diode (32) is connected with the detonator control chip (2).
8. The ignition-free digital electronic detonator according to claim 1, wherein the anti-static circuit (3) comprises a spring plate (31), a TVS transient suppression diode (32) and an electrostatic impeder (33), the spring plate (31) is in contact with the detonator shell (10) through self elasticity and forms an electrical connection, the electrostatic impeder (33) is connected in series with the spring plate (31) and then connected in parallel with the TVS transient suppression diode (32), and the TVS transient suppression diode (32) is connected with the detonator control chip (2).
9. The ignition-free digital electronic detonator as claimed in claim 8, wherein the antistatic circuit (3) further comprises a rectifier bridge, and the bus is connected with the detonator control chip (2) after being connected with the rectifier bridge.
10. The ignition-free digital electronic detonator as claimed in any one of claims 1 to 9, wherein the energy storage capacitor (4) is a cylindrical electrolytic capacitor, and the capacity value of the energy storage capacitor (4) is 100 μ f or more.
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| CN202110953369.4A CN113639599B (en) | 2021-08-19 | 2021-08-19 | Ignition-powder-free digital electronic detonator |
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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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| 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 |
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| CN113639599B (en) | 2023-01-06 |
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