Novel ignition-free powder head detonating device

By employing a semiconductor bridge and PCB board slot insertion and welding design, along with a protective cover block design in the chargeless digital electronic detonator, and combining it with the sleeve splicing structure, the problems of poor ignition effect, insufficient stability and protection are solved, achieving better disassembly, assembly and maintenance convenience and safety.

CN224121832UActive Publication Date: 2026-04-14LUOYANG ZHENGSHUO ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing chargeless digital electronic detonators have poor ignition performance, poor stability, and poor protection due to their ignition bridge wires, and they are also difficult to disassemble and assemble.

Method used

The semiconductor bridge is installed by inserting and welding with the PCB board slot, combined with the cover block for protection, and can be independently disassembled and assembled by splicing screw grooves and splicing screw rings. The outer pad block wraps and supports, forming a combination structure of the first sleeve, the second sleeve and the third sleeve.

Benefits of technology

It improves the reliability and stability of ignition, enhances the protective effect, simplifies the disassembly and assembly process, and improves the safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel non-ignition gunpowder head detonating device which comprises a first sleeve, a splicing screw ring is fixedly connected with the edge of the other end of a second sleeve and the edge of the other end of a third sleeve in a protruding mode, outer cushion blocks are installed on the outer walls of the second sleeve, the third sleeve and the first sleeve in a sleeved mode, and an electronic detonator module is installed on the inner wall of the third sleeve. And one end of the electronic detonator module is electrically connected with the energy storage capacitor. According to the novel ignition-free gunpowder head detonating device, ignition can be conducted through the semiconductor bridge, and the novel ignition-free gunpowder head detonating device and a PCB groove are installed in an inserted and welded mode, so that fixing and shock resistance are achieved; heat is better released through front ignition, covering protection can be achieved through a cover block, sleeving protection can be achieved through a first sleeve, a second sleeve and a third sleeve through an outer cushion block, the protection effect is good, the first sleeve, the second sleeve and the third sleeve can be independently disassembled and assembled through a splicing screw groove and a splicing screw ring, disassembly, assembly, maintenance and use are convenient, and the practicability is high. The use is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of electronic detonator blasting technology, specifically a novel ignition device without a ignition head. Background Technology

[0002] Currently, domestic and international digital electronic detonators utilize microelectronic components and control circuits to achieve the delay time requirement for industrial electric detonators. Typically, a bridge wire is soldered onto the microelectronic control circuit, and this bridge wire is coated with a sensitive agent to ensure ignition reliability and improve the accuracy of the delay time. The energy generated by the deflagration or explosion of the sensitive agent ignites the base detonator containing the initiating explosive, ultimately detonating the industrial explosive. However, the performance specifications for digital electronic detonators include: bending resistance requirements: "When a radial load of (50±0.1) N is applied to the main charge and electronic control module of the digital electronic detonator, the digital electronic detonator should not explode..."; impact resistance: "Under the conditions of a hammer weight of (2.0±0.002) Kg and a drop height of (0.5±0.01) m, when impacting the detonator's ignition head and the initiating explosive charge, the digital electronic detonator should not explode." There are also relevant requirements for drop resistance. These increased performance specifications are due to the presence of a sensitive agent in the ignition head of ordinary digital electronic detonators.

[0003] The existing headless digital electronic detonator (CN201320167080.0) uses a bridge wire in its ignition device, which is located at the end of the detonating charge. The ignition device is welded to one end of the electronic chip, and a lead wire is welded to the other end. The ignition device with the bridge wire is directly inserted into the end of the detonating charge, thus combining the two dangerous points of the digital electronic detonator—the ignition point and the detonating charge loading point—into a single dangerous point. This simplifies the manufacturing process of digital electronic detonators and helps improve their bending resistance and impact resistance, thereby further enhancing the safety of their production, transportation, and use. However, it has shortcomings: the existing equipment's ignition bridge wire has poor ignition effect, instability, and protective properties, and its disassembly and assembly are also inconvenient. Therefore, a new type of headless detonation device is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a novel ignition device without a propellant head, in order to solve the problems mentioned in the background art, such as poor ignition effect of the ignition bridge wire, poor stability, poor protection, and poor disassembly and assembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel non-ignition head detonation device, comprising a first sleeve, a second sleeve installed at one end of the first sleeve, and a third sleeve installed at the other end of the second sleeve. Energy storage capacitors are installed on the inner walls of the first and second sleeves, and a PCB board slot is embedded at the other end of the first sleeve. One end of the PCB board slot is electrically connected to the energy storage capacitor, and a semiconductor bridge is installed at the other end of the PCB board slot. A cover block is fitted over the semiconductor bridge and the outer wall of the PCB board slot, and a threaded mounting ring is protruding and fixedly connected to the lower edge of the cover block. The threaded mounting ring is inserted into a threaded splicing groove, and the threaded mounting ring... A splicing groove is formed on the inner side of the other end edge of the first sleeve. A threaded mounting groove is formed on the outer side of the other end edge of the first sleeve, and a matching fixing ring is screwed into the inner wall of the threaded mounting groove. A splicing screw groove is formed on the edge of one end of the first sleeve and the second sleeve, and a splicing screw ring is screwed into the inner wall of the splicing screw groove. The splicing screw ring is fixedly connected to the protruding edge of the other end of the second sleeve and the third sleeve. An outer pad is fitted onto the outer wall of the second sleeve and the third sleeve and the first sleeve. An electronic detonator module is installed on the inner wall of the third sleeve. One end of the electronic detonator module is electrically connected to the energy storage capacitor, and the other end of the electronic detonator module is electrically connected to a connecting wire.

[0006] Preferably, the first sleeve, the second sleeve, and the third sleeve are distributed in three sections, and the first sleeve, the second sleeve, and the third sleeve are connected and installed by splicing screw grooves and splicing screw rings.

[0007] Preferably, the semiconductor bridge is vertically inserted and welded to the PCB board groove, and the semiconductor bridge is distributed in a protruding position at one end of the PCB board groove.

[0008] Preferably, the matching fixing ring is installed by screwing together with the first sleeve through a threaded mounting groove.

[0009] Preferably, the shape of the inner wall of the cover block matches the shape of the semiconductor bridge and the PCB board groove, and the cover block is screwed and installed with the semiconductor bridge and the PCB board groove through a threaded splicing groove and a threaded mounting ring.

[0010] Preferably, the outer pad is made of rubber, and the outer pad is distributed in a wrapping position with the outer walls of the first sleeve, the second sleeve, and the third sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this novel ignition-free propellant head detonation device can be ignited through a semiconductor bridge, and it is installed by inserting and welding into the PCB board slot, which provides fixation and shock resistance; the front ignition releases heat better, and it can be protected by a cover block; moreover, the first sleeve, the second sleeve, and the third sleeve can be protected by an outer pad block, which provides excellent protection; and the first sleeve, the second sleeve, and the third sleeve can be independently disassembled and assembled by splicing screw grooves and splicing screw rings, which is convenient for disassembly, assembly, maintenance, and use. Attached Figure Description

[0012] Figure 1 This is a front view of a novel non-ignition head detonation device according to this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a novel ignition-free propellant head detonation device according to this utility model;

[0014] Figure 3 This utility model relates to a novel non-ignition head detonation device. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This utility model relates to a novel non-ignition head detonation device. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a novel non-ignition head detonation device. Figure 2 Enlarged view of point C in the middle.

[0017] In the diagram: 1. First sleeve, 2. Second sleeve, 3. Third sleeve, 4. Connecting wire, 5. Semiconductor bridge, 6. PCB board slot, 7. Electronic detonator module, 8. Energy storage capacitor, 9. Threaded mounting slot, 10. Matching fixing ring, 11. Cover block, 12. Threaded splicing slot, 13. Threaded mounting ring, 14. Outer pad block, 15. Splicing screw groove, 16. Splicing screw ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5This utility model provides a technical solution: a novel non-ignition head detonation device, comprising a first sleeve 1, a second sleeve 2, a third sleeve 3, a connecting wire 4, a semiconductor bridge 5, a PCB board slot 6, an electronic detonator module 7, an energy storage capacitor 8, a threaded mounting slot 9, a matching fixing ring 10, a cover block 11, a threaded splicing groove 12, a threaded mounting ring 13, an outer pad block 14, a splicing screw groove 15, and a splicing screw ring 16. The second sleeve 2 is installed at one end of the first sleeve 1, and the third sleeve 3 is installed at the other end of the second sleeve 2. The first sleeve 1, second sleeve 2, and third sleeve 3 are distributed in three sections, and are screwed together by the splicing screw groove 15 and the splicing screw ring 16. This allows the first sleeve 1 to... 1. The second sleeve 2 and the third sleeve 3 can be independently screwed and disassembled for easy maintenance. Energy storage capacitors 8 are installed on the inner walls of the first sleeve 1 and the second sleeve 2. A PCB board slot 6 is embedded in the other end of the first sleeve 1. One end of the PCB board slot 6 is electrically connected to the energy storage capacitor 8, and a semiconductor bridge 5 is installed on the other end of the PCB board slot 6. The semiconductor bridge 5 is perpendicularly inserted and welded to the PCB board slot 6, and the semiconductor bridge 5 is positioned protruding at one end of the PCB board slot 6. This allows the semiconductor bridge 5 to provide fixation and shock absorption, and better heat dissipation from the front. A cover block 11 is installed on the outer wall of the semiconductor bridge 5 and the PCB board slot 6, and a threaded mounting ring 13 is fixedly connected to the protruding lower edge of the cover block 11. The shape of the inner wall of the cover block 11 is similar to that of the semiconductor bridge 5. The shapes of bridge 5 and PCB board slot 6 are matched, and the cover block 11 is screwed and installed with semiconductor bridge 5 and PCB board slot 6 through threaded splicing groove 12 and threaded mounting ring 13. This makes it easy to screw and disassemble the cover block 11 for easy cover protection with good effect. The threaded mounting ring 13 is inserted into the threaded splicing groove 12, and the threaded splicing groove 12 is opened on the inner side of the other end edge of the first sleeve 1. A threaded mounting groove 9 is opened on the outer side of the other end edge of the first sleeve 1, and a matching fixing ring 10 is screwed on the inner wall of the threaded mounting groove 9. The matching fixing ring 10 is screwed and spliced ​​with the first sleeve 1 through the threaded mounting groove 9. This makes it easy to splice and install the device with the matching fixing ring 10, and the matching fixing ring 10 can be quickly installed through the threaded mounting groove 9. For quick adaptation and replacement, the first sleeve 1 and the second sleeve 2 are both provided with splicing screw grooves 15 on one edge, and splicing screw rings 16 are screwed into the inner wall of the splicing screw grooves 15. The splicing screw rings 16 are fixedly connected to the other edge of the second sleeve 2 and the third sleeve 3. The second sleeve 2 and the third sleeve 3 are fitted with outer pads 14 on the outer wall of the first sleeve 1. The outer pads 14 are made of rubber and are distributed in a wrapping position with the outer walls of the first sleeve 1, the second sleeve 2, and the third sleeve 3. This allows the outer pads 14 to wrap and support the protection, providing excellent protection. An electronic detonator module 7 is installed on the inner wall of the third sleeve 3. One end of the electronic detonator module 7 is electrically connected to the energy storage capacitor 8, and the other end of the electronic detonator module 7 is electrically connected to the connecting wire 4.

[0020] Working principle: When using this new type of ignition-free detonator, the device is first assembled and installed. Then, the cover block 11 is screwed and installed with the semiconductor bridge 5 and PCB board slot 6 through the threaded splicing groove 12 and threaded mounting ring 13. Next, the device is assembled and installed with the base detonator through the matching fixing ring 10. Then, the internal energy storage capacitor 8 is charged through the electronic detonator module 7. During detonation, the capacity on the energy storage capacitor 8 is released to the semiconductor bridge 5. Then, the semiconductor bridge 5 instantly generates a flame to ignite the base detonator. When disassembly and maintenance are required, the second sleeve 2 and the third sleeve 3 can be independently disassembled and assembled through the splicing screw groove 15 and splicing screw ring 16. This is the usage process of this new type of ignition-free detonator.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel non-ignition head detonation device, comprising a first sleeve (1), a second sleeve (2) installed at one end of the first sleeve (1), and a third sleeve (3) installed at the other end of the second sleeve (2), characterized in that: Energy storage capacitors (8) are installed on the inner walls of the first sleeve (1) and the second sleeve (2), and a PCB board groove (6) is embedded in the other end of the first sleeve (1). One end of the PCB board groove (6) is electrically connected to the energy storage capacitor (8), and a semiconductor bridge (5) is installed on the other end of the PCB board groove (6). A cover block (11) is installed on the outer wall of the semiconductor bridge (5) and the PCB board groove (6), and a threaded mounting ring (13) is fixedly connected to the lower edge of the cover block (11). The threaded mounting ring (13) is inserted into the threaded splicing groove (12), and the threaded splicing groove (12) is opened on the inner side of the other end edge of the first sleeve (1). A threaded mounting groove is opened on the outer side of the other end edge of the first sleeve (1). (9), and a matching fixing ring (10) is screwed into the inner wall of the threaded mounting groove (9). A splicing screw groove (15) is opened on one end edge of the first sleeve (1) and the second sleeve (2). A splicing screw ring (16) is screwed into the inner wall of the splicing screw groove (15). The splicing screw ring (16) is fixedly connected to the other end edge of the second sleeve (2) and the third sleeve (3). An outer pad (14) is fitted into the outer wall of the second sleeve (2) and the third sleeve (3) and the first sleeve (1). An electronic detonator module (7) is installed on the inner wall of the third sleeve (3). One end of the electronic detonator module (7) is electrically connected to the energy storage capacitor (8). The other end of the electronic detonator module (7) is electrically connected to a connecting wire (4).

2. The novel non-ignition head detonation device according to claim 1, characterized in that: The first sleeve (1), the second sleeve (2), and the third sleeve (3) are distributed in three sections, and the first sleeve (1), the second sleeve (2), and the third sleeve (3) are connected and installed by splicing screw groove (15) and splicing screw ring (16).

3. The novel non-ignition head detonation device according to claim 2, characterized in that: The semiconductor bridge (5) is vertically inserted and welded to the PCB board groove (6), and the semiconductor bridge (5) is distributed in a protruding position at one end of the PCB board groove (6).

4. The novel non-ignition head detonation device according to claim 3, characterized in that: The matching fixing ring (10) is installed by screwing together with the first sleeve (1) through the threaded mounting groove (9).

5. A novel non-ignition head detonation device according to claim 4, characterized in that: The shape of the inner wall of the cover block (11) matches the shape of the semiconductor bridge (5) and the PCB board groove (6), and the cover block (11) is screwed and covered with the semiconductor bridge (5) and the PCB board groove (6) through the threaded splicing groove (12) and the threaded mounting ring (13).

6. A novel non-ignition head detonation device according to claim 5, characterized in that: The outer pad (14) is made of rubber, and the outer pad (14) is distributed in a wrapping position with the outer walls of the first sleeve (1), the second sleeve (2), and the third sleeve (3).

Citation Information

Patent Citations

  • Explosive-head-free type digital electronic detonator

    CN203190900U