Initiating-explosive-free high-safety electronic detonator based on electrically-driven firing
By employing an electrically driven firing mechanism with no detonator, the safety risks caused by impact, friction, static electricity, and other factors during the production, transportation, storage, and use of traditional electronic detonators are resolved, achieving higher safety and functionality.
Patent Information
- Application Number
- CN202423213603.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The detonating charge in traditional electronic detonators poses safety risks during production, transportation, storage, and use, and is prone to accidental detonation due to factors such as impact, friction, and static electricity.
Design an electronic detonator without detonating explosive, employing an electrically driven firing mechanism. By separating the electronic control module and the metal filament, and utilizing a low-voltage circuit for operation and a high-voltage circuit for charging, the explosive loading section is separated from the firing body, preventing accidental detonation. The metal filament converts electrical energy into thermal energy to ignite the energetic material.
It improves the safety of electronic detonators, avoids accidental detonation caused by factors such as impact, friction, and static electricity, enhances safety during production, transportation, storage and use, and also has identification and decoding verification functions.
Smart Images
Figure CN223525690U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of explosive material, specifically relates to a high safety electronic detonator without initiating explosive based on electric drive firing. BACKGROUND
[0002] Electronic detonator, also called digital electronic detonator, digital detonator or industrial digital electronic detonator, is an electric detonator using electronic control module to control the initiation process.
[0003] The traditional electronic detonator usually contains initiating explosive, which has certain safety risks in production, transportation, storage and use. For example, initiating explosive is sensitive to impact, friction, static electricity and other conditions, and is easy to accidentally initiate, thereby causing serious safety accidents. SUMMARY
[0004] The utility model wants to solve the technical problem to provide a high safety electronic detonator without initiating explosive based on electric drive firing, which has higher safety.
[0005] In order to solve the above technical problem, the utility model provides the following technical scheme:
[0006] The utility model provides a high safety electronic detonator without initiating explosive based on electric drive firing, which comprises: a tube body, a charge filling part, a firing body, an electronic control module and a leg wire are sequentially arranged in the tube body, the leg wire, the electronic control module and the firing body are sequentially connected, the firing body comprises a tube shell arranged in the tube body, two stage ports arranged on the tube shell, an energetic material filled in the tube shell and a metal filament connected to the positive and negative stages of the two stage ports respectively, and the metal filament is in contact with the energetic material.
[0007] By adopting the above technical scheme, when the electronic detonator is initiated, the initiation control equipment is connected with the leg wire first, the initiation control equipment charges the electronic control module through the leg wire, the electronic control module supplies power to the metal filament through the two stage ports, the metal filament converts the electric energy into heat energy to ignite the energetic material, and the energetic material excites the charge filling part to initiate. Since the charge filling part (initiating explosive) and the firing body are arranged separately, the situation that the initiating explosive is accidentally initiated due to impact, friction, static electricity and other conditions in the production, transportation, storage and use process can be effectively avoided, so the safety is higher.
[0008] Optionally, the electronic control module comprises a PCB board arranged in the pipe body, the PCB board is provided with an input unit, a delay unit, a charging unit, a control unit and a discharging unit, the input end and the output end of the input unit are connected with the foot wire and the input end of the delay unit respectively, the charging unit and the control unit are connected in parallel on the output end of the delay unit, and the input end and the output end of the discharging unit are connected with the control unit and the two-stage port respectively.
[0009] By adopting the technical scheme, when the current enters the input unit through the foot wire, the charging unit can be charged after the delay of the delay unit, the control unit is powered after the charging of the charging unit is completed, the discharging unit is powered by the control unit, the metal filament is powered by the discharging unit through the two-stage port, and the metal filament converts the electric energy into heat energy to ignite the energetic material.
[0010] Optionally, the input unit adopts a diode D1, the delay unit adopts a delay chip U1, the charging unit adopts a capacitor C1, the control unit adopts a control chip U2, and the discharging unit adopts a capacitor C2; the input end and the output end of the diode D1 are connected with the foot wire and the input end of the delay chip U1 respectively, the capacitor C1 and the control chip U1 are connected in parallel on the output end of the delay chip U1, and the input end and the output end of the capacitor C2 are connected with the control chip U1 and the two-stage port respectively.
[0011] By adopting the technical scheme, when the current enters the diode D1, the diode D1 can inhibit the transient voltage. The delay chip U1 can delay, the delay chip U1 can provide high-precision delay and output low level. Then the current charges the capacitor C1, the control chip U1 is powered after the charging of the capacitor C1 is completed, then the control chip U1 powers the capacitor C2, the capacitor C2 powers the metal filament through the two-stage port, and the metal filament converts the electric energy into heat energy and ignites the energetic material, so as to realize the initiation of the explosive filling part.
[0012] Optionally, the pipe shell adopts an insulating sealing material.
[0013] By adopting the technical scheme, the generation of static electricity can be prevented.
[0014] Optionally, the explosive filling part comprises a primary explosive and a reinforcing cap, the primary explosive is filled in the pipe body, the reinforcing cap is arranged at one end of the primary explosive close to the pipe shell, and the reinforcing cap is provided with a flash hole.
[0015] By adopting the technical scheme, when the energetic material is ignited, the primary explosive can be excited to explode through the flash hole.
[0016] Optionally, the metal filament adopts a spiral structure.
[0017] By adopting the technical scheme, the metal filament in a spiral structure has a larger contact area with the energetic material, thereby being more helpful to ignite the energetic material.
[0018] Optionally, the metal filament is a copper wire or a nichrome wire.
[0019] By adopting the technical scheme, the copper wire and the nichrome wire have good heat conduction effect and can quickly heat to ignite the energetic material.
[0020] Optionally, the energetic material is an expanding agent or KK ignition powder.
[0021] By adopting the technical scheme, the expanding agent and the KK ignition powder can burn quickly through the transmission hole to initiate the initiating explosive when initiating.
[0022] Optionally, the metal filament is connected with the two-stage port through laser welding, rivet welding or SMT.
[0023] By adopting the technical scheme, the stability of the connection between the metal filament and the two-stage port can be improved.
[0024] Optionally, the tube shell is provided with a support column in the axial direction.
[0025] By adopting the technical scheme, the support column can support the metal filament.
[0026] In summary, the utility model at least has the following beneficial technical effects:
[0027] The utility model discloses a low-voltage circuit works, and the high-voltage circuit charges and initiates, and the explosive filling part is separated from the firing body, which can effectively avoid the accidental initiation of the initiating explosive in the production, transportation, storage and use process due to impact, friction, static electricity and other conditions, so the utility model has higher safety. Meanwhile, the control unit can also complete identity recognition and decoding verification, and communicate with the matching initiation system, complete decoding authorization, network detection, charging initiation and other functions. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 It is a structure schematic view of the high-safety electronic detonator without initiating explosive based on electrically-driven firing.
[0029] Figure 2 It is a structure schematic view of the firing body.
[0030] Mark explanation: 1, tube body, 2, firing body, 3, electronic control module, 4, foot line, 5, initiating explosive, 6, reinforcing cap, 7, transmission hole, 8, tube shell, 9, two-stage port, 10, energetic material, 11, metal filament, 12, support column. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.
[0032] The terms used in the following examples of the utility model are only for the purpose of describing specific examples, and are not intended to be limiting on the utility model. As used in the specification and the appended claims of the utility model, the singular forms "a", "an" and "the" are intended to include both singular and plural forms, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or" as used in the utility model, means any or all possible combinations of one or more of the associated listed items. The term "exemplary" means "serving as an example, instance, or illustration" and any embodiment described as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The terms "first", "second", and the like, do not denote any order, quantity, combination, or importance, but are used to distinguish one element from another. Therefore, a feature limited by "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the embodiments of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0033] The embodiment provides a non-primary explosive high-safety electronic detonator based on electric drive firing.
[0034] Reference Figure 1 The non-primary explosive high-safety electronic detonator based on electric drive firing comprises a tube body 1, an explosive filling part, a firing body 2, an electronic control module 3 and a foot wire 4 are sequentially arranged in the tube body 1 from one end to the other end. The foot wire 4 is connected with the input end of the electronic control module 3, and the output end of the electronic control module 3 is connected with the firing body 2.
[0035] The foot wire 4 is used for being connected with an initiation control device, the electronic control module 3 is used for igniting the firing body 2, the firing body 2 is used for initiating the explosive filling part, and the explosive filling part is used for blasting.
[0036] The explosive filling part comprises a primary explosive 5 and a reinforcing cap 6, the primary explosive 5 is filled in the tube body 1, the reinforcing cap 6 is arranged at one end of the primary explosive 5 close to the firing body 2, and the outer side wall of the reinforcing cap 6 is in contact with the inner wall of the tube body 1. A fire transmission hole 7 is formed in the reinforcing cap 6, the fire transmission hole 7 is used for transmitting fire to the primary explosive 5 after the firing body 2 is ignited, so that the primary explosive 5 is excited to explode.
[0037] Reference Figure 1 And Figure 2The firing body 2 comprises a tube shell 8, two-stage ports 9, an energetic material 10 and a metal filament 11. The tube shell 8 is located in the tube body 1, and is a sealed cylinder made of insulating material. The two-stage ports 9 are fixedly connected to the tube shell 8, and are connected to the electronic control module 3. The energetic material 10 is filled in the tube shell 8, and the metal filament 11 has two ends connected to the positive and negative stages of the two-stage ports 9 respectively, and is in full contact with the energetic material 10. Meanwhile, the tube shell 8 is also fixedly connected with a support column 12 in the axial direction, which is used to support the metal filament 11.
[0038] When the electronic detonator is initiated, the initiation control device charges the electronic control module 3 through the leg wire 4, the electronic control module 3 supplies power to the metal filament 11, the metal filament 11 converts the electric energy into heat energy to ignite the energetic material 10, and the energetic material 10 ignites the booster 5 after passing through the transmission hole 7.
[0039] The electronic control module 3 comprises a PCB board arranged in the tube body 1, and an input unit, a delay unit, a charging unit, a control unit and a discharge unit mounted on the PCB board. The input end and the output end of the input unit are connected with the leg wire 4 and the input end of the delay unit respectively, the charging unit and the control unit are connected in parallel to the output end of the delay unit, and the input end and the output end of the discharge unit are connected with the control unit and the two-stage ports 9 respectively. When the current enters the input unit through the leg wire 4, the charging unit can be charged after the delay of the delay unit, the charging unit supplies power to the control unit after completing the charging, the control unit supplies power to the discharge unit, the discharge unit supplies power to the metal filament 11 through the two-stage ports 9, and the metal filament 11 converts the electric energy into heat energy to ignite the energetic material 10.
[0040] Among them, the input unit adopts a diode D1, the delay unit adopts a delay chip U1, the charging unit adopts a capacitor C1, the control unit adopts a control chip U2, and the discharge unit adopts a capacitor C2. The input end and the output end of the diode D1 are connected with the leg wire 4 and the input end of the delay chip U1 respectively, the capacitor C1 and the control chip U1 are connected in parallel to the output end of the delay chip U1, and the input end and the output end of the capacitor C2 are connected with the control chip U1 and the two-stage ports 9 respectively.
[0041] When the current enters the diode D1, the delay chip U1 can delay, then the current charges the capacitor C1, the capacitor C1 charges the control chip U1 after the completion of power supply, then the control chip U1 supplies power to the capacitor C2, the capacitor C2 supplies power to the metal filament 11 through two-stage port 9, the metal filament 11 converts the electric energy into heat energy and ignites the energetic material 10, so as to realize the initiation of the explosive filling part. Among them, the diode D1 can inhibit the transient voltage, so as to realize voltage stabilization. The delay chip U1 can provide high-precision delay and output low level. The capacitor C1 is a working loop for low voltage, the control chip U1 program can be written in advance, and the capacitor C2 is a high-voltage charging initiation loop.
[0042] The utility model discloses a low-voltage loop work, high-voltage loop charging initiation, explosive filling part (initiating explosive 5) and the setting of the separation of the firing body 2, can effectively avoid the accidental initiation of initiating explosive 5 in the production, transportation, storage and use process because of the impact, friction, static electricity and so on, therefore has higher security. At the same time, the control unit can also complete identity recognition and decoding verification, and communicate with the matching initiation system, complete decoding authorization, network detection, charging initiation and other functions.
[0043] In the optional embodiment of the present application, the input unit and the foot line 4 can be connected by laser welding, riveting, plug-in and the like. The metal filament 11 adopts a spiral structure and is in full contact with the energetic material 10. The metal filament 11 adopts copper wire, nickel-chromium alloy wire or other low-resistance metal wire, and the energetic material 10 adopts an expanding agent or KK ignition powder or other energetic material 10. The KK ignition powder is a mixed ignition powder of picric acid potassium and potassium perchlorate. The metal filament 11 is connected with the two-stage port 9 by laser welding, riveting, SMT (Surface Mounted Technology) and the like.
[0044] The above-described embodiments are only used to specifically introduce the technical solutions of the utility model, but the above-described embodiments are only used to help understand the utility model and should not be understood as limiting the utility model. The changes or replacements that can be easily thought of by those skilled in the art within the technical range disclosed by the utility model should be covered in the protection range of the utility model.
Claims
1. A non-primary high safety electronic detonator based on electrically driven firing, characterized in that, The application relates to a tube body (1) which is sequentially provided with an explosive filling part, a firing body (2), an electronic control module (3) and a foot wire (4) inside, the foot wire (4), the electronic control module (3) and the firing body (2) being sequentially connected, the firing body (2) comprising a tube shell (8) arranged in the tube body (1), two-stage ports (9) arranged on the tube shell (8), an energetic material (10) filled in the tube shell (8) and metal filaments (11) connected to the positive and negative stages of the two-stage ports (9) respectively, the metal filaments (11) being in contact with the energetic material (10). The electronic control module (3) comprises a PCB board arranged in the tube body (1), the PCB board being provided with an input unit, a delay unit, a charging unit, a control unit and a discharging unit, the input end and the output end of the input unit being connected with the foot wire (4) and the input end of the delay unit respectively, the charging unit and the control unit being connected in parallel to the output end of the delay unit, and the input end and the output end of the discharging unit being connected with the control unit and the two-stage ports (9) respectively.
2. The non-primary explosive based electric drive firing high safety electronic detonator according to claim 1, characterized in that, The input unit adopts a diode D1, the delay unit adopts a delay chip U1, the charging unit adopts a capacitor C1, the control unit adopts a control chip U2, and the discharging unit adopts a capacitor C2; the input end and the output end of the diode D1 are connected with the foot wire (4) and the input end of the delay chip U1 respectively, the capacitor C1 and the control chip U1 are connected in parallel to the output end of the delay chip U1, and the input end and the output end of the capacitor C2 are connected with the control chip U1 and the two-stage ports (9) respectively.
3. The electrically driven firing based non-primary high safety electronic detonator according to claim 2, characterized in that, The tube shell (8) adopts an insulating sealing material.
4. The electrically driven firing based non-primary high safety electronic detonator according to claim 1 or 2, characterized in that, The explosive filling part comprises a primary explosive (5) and a reinforcing cap (6), the primary explosive (5) being filled in the tube body (1), the reinforcing cap (6) being arranged at one end of the primary explosive (5) close to the tube shell (8), and a fire transmission hole (7) being formed in the reinforcing cap (6).
5. The electrically driven firing based non-primary high safety electronic detonator according to claim 4, characterized in that, The metal filaments (11) adopt a spiral structure.
6. The electrically driven firing based non-primary high safety electronic detonator according to claim 4, characterized in that, The metal filaments (11) adopt copper wires or nichrome wires.
7. The non-primary explosive (5) based on electrically driven firing high safety electronic detonator according to claim 6, characterized in that, The energetic material (10) adopts an expanding agent or KK ignition powder.
8. The electrically driven firing based non-primary high safety electronic detonator according to claim 4, characterized in that, The metal filaments (11) (5) are connected with the two-stage ports (9) through laser welding, rivet welding or SMT.
9. The electrically driven firing based non-primary high safety electronic detonator according to claim 4, characterized in that, The tube shell (8) is provided with a supporting column (12) in the axial direction.
10. The electrically driven firing based non-primary high safety electronic detonator according to claim 4, characterized in that,