Non-ignition gunpowder leg wire on-site plug-in type electronic detonator

Abstract

The utility model relates to the technical field of electronic detonator structures, in particular to an ignition-free gunpowder leg wire on-site plug-in type electronic detonator. Comprising a leg wire assembly, an electronic detonator assembly and a bar code plate, the leg wire assembly comprises a wire clamp, a leg wire body, a socket and a first injection molding body. One end of the leg wire body is connected to the wire clamp, the other end of the leg wire body is connected to the socket in a rivet welding mode, the first injection molding body is connected to the outer portion of the socket in an injection molding mode and comprises a cylindrical connecting part and an annular protruding edge connected to the root of the connecting part, two jacks are formed in the end of the connecting part, and a strip-shaped groove is formed in the circumferential face of the connecting part. The two sides of the circular-ring-shaped protruding edge are connected with ear buckles facing the connecting part respectively. And the like; the structure can reduce the comprehensive cost of the electronic detonator.

Description

Technical Field

[0001] This utility model relates to the field of electronic detonator structure technology, and in particular to an electronic detonator with a field-connected type without ignition lead wire. Background Technology

[0002] Existing electronic detonators require dipping the ignition head in ignition powder, a process involving numerous steps and low efficiency. Furthermore, in current electronic detonators, the detonator and lead wires are connected at the factory, consuming significant packaging space. This limits the number of detonators transported at a time by pyrotechnics transport vehicles and warehouse storage capacity, significantly increasing transportation and storage costs. Soldering the lead wires to PCB pads or riveting them with terminals is inefficient and results in a high scrap rate, hindering cost control. Utility Model Content

[0003] The technical problem to be solved by this utility model is: there is an urgent need to develop a field-connected electronic detonator without ignition lead wire, so as to reduce the overall cost of electronic detonators.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A field-connected electronic detonator without ignition powder lead wire includes a lead wire assembly, an electronic detonator assembly, and a barcode board;

[0006] The lead wire assembly includes a lead wire clip, a lead wire body, a socket, and a first injection molded body;

[0007] One end of the lead wire body is connected to the wire clip, and the other end is riveted to the socket. The first injection molded body is injection molded to the outside of the socket. The first injection molded body includes a cylindrical connecting part and an annular protrusion connected to the root of the connecting part. The end of the connecting part is provided with two insertion holes. The circumferential surface of the connecting part is provided with a strip groove. The two sides of the annular protrusion are respectively connected with ear clips facing the connecting part.

[0008] The electronic detonator assembly includes a base detonator and an electronic control module connected to the end of the base detonator;

[0009] The electronic control module includes a PCB assembly and a second injection molded body;

[0010] The PCB assembly includes a PCB board, as well as pins, ignition heads, and electronic components connected to the PCB board; the PCB board is inserted into the base detonator.

[0011] The second injection molding body is injection molded to the outside of the pin part of the PCB. The end of the second injection molding body is provided with a cylindrical hole that transitions or interferes with the connection part of the first injection molding body. The pin is located in the cylindrical hole. The inner wall of the cylindrical hole is provided with a protrusion that matches the strip groove. Limiting grooves are provided on both sides of the second injection molding body for engaging with the ear clip.

[0012] Furthermore, in the above-mentioned field-connected electronic detonator structure without ignition powder lead wire, the wire clip is provided with a first slot for installing a barcode plate.

[0013] Furthermore, in the above-mentioned field-connected electronic detonator structure without ignition lead wire, the side of the second injection-molded body is provided with a second slot for mounting a barcode plate.

[0014] Furthermore, in the above-mentioned field-connected electronic detonator structure without ignition lead wire, an O-ring seal is connected between the connecting part of the first injection-molded body and the annular convex edge.

[0015] Furthermore, in the above-mentioned field-connected electronic detonator structure without ignition lead wire, the PCB board is elongated, the electronic components are connected to the middle of the PCB board, the pins are connected to the PCB board near the first end, the ignition head is connected to the PCB board near the second end, the width of the second end of the PCB board is narrower than the width of the middle part, and the width of the part between the middle part and the first end of the PCB board is smaller than the width of the middle part.

[0016] Furthermore, in the above-mentioned field-connected electronic detonator structure without ignition lead wire, the pin and the PCB board are connected by a wire.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1) Eliminating the process of dipping the detonator in chemicals and welding the detonator leads to the electronic control module reduces product manufacturing costs;

[0019] 2) Transporting lead wire and detonators separately can greatly increase the number of detonators transported at one time and reduce product transportation costs, especially for long-distance transportation;

[0020] 3) Separating lead wires and detonators reduces the limitation on the size of the pyrotechnics warehouse, making it more flexible for users to place orders, thereby reducing users' warehousing and management costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a field-connected electronic detonator without ignition lead wire, according to a specific embodiment of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of an electronic detonator assembly for a field-connected electronic detonator without ignition lead wire, which is a specific embodiment of this utility model.

[0023] Figure 3 A schematic diagram of the PCB assembly of a field-connected electronic detonator without ignition lead wire, which is a specific embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the lead wire assembly of a field-connected electronic detonator without ignition powder lead wire, which is a specific embodiment of this utility model.

[0025] Label Explanation:

[0026] 1. Lead wire assembly; 11. Cable clip; 111. First slot; 12. Lead wire body; 13. Socket; 14. First injection molded body; 141. Connecting part; 1411. Socket; 1412. Strip groove; 142. Circular raised edge; 1421. Ear clip; 143. O-ring seal;

[0027] 2. Electronic detonator assembly; 21. Basic detonator; 22. Electronic control module; 221. PCB assembly; 2211. PCB board; 2212. Pin; 2213. Ignition head; 2214. Electronic components; 222. Second injection molded body; 2221. Cylindrical hole; 2222. Protrusion; 2223. Limiting groove; 2224. Second slot;

[0028] 3. Barcode board. Detailed Implementation

[0029] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0030] Please refer to Figures 1 to 4 A field-connected electronic detonator without ignition powder lead wire includes a lead wire assembly 1, an electronic detonator assembly 2, and a barcode plate 3;

[0031] The lead wire assembly 1 includes a wire clip 11, a lead wire body 12, a socket 13, and a first injection molded body 14;

[0032] One end of the lead wire body 12 is connected to the wire clip 11, and the other end is riveted to the socket 13. The first injection molded body 14 is injection molded to the outside of the socket 13. The first injection molded body 14 includes a cylindrical connecting part 141 and an annular protrusion 142 connected to the root of the connecting part 141. The end of the connecting part 141 is provided with two insertion holes 1411. The circumferential surface of the connecting part 141 is provided with a strip groove 1412. The two sides of the annular protrusion 142 are respectively connected with ear loops 1421 facing the connecting part 141.

[0033] The electronic detonator assembly 2 includes a base detonator 21 and an electronic control module 22 connected to the end of the base detonator 21;

[0034] The electronic control module 22 includes a PCB assembly 221 and a second injection molded body 222;

[0035] The PCB assembly 221 includes a PCB board 2211, and pins 2212, ignition head 2213 and electronic components 2214 connected to the PCB board 2211; the PCB board 2211 is inserted into the base detonator 21.

[0036] The second injection molded body 222 is injection molded and connected to the outside of the pin 2212 part of the PCB. The end of the second injection molded body 222 is provided with a cylindrical hole 2221 that transitions or interferes with the connection part 141 of the first injection molded body 14. The pin 2212 is located in the cylindrical hole 2221. The inner wall of the cylindrical hole 2221 is provided with a protrusion 2222 that matches the strip groove 1412. The two sides of the second injection molded body 222 are respectively provided with limiting grooves 2223 for engaging with the ear clip 1421.

[0037] In the above embodiments, the electronic detonator assembly 2 and the lead wire assembly 1 are separable. Since only the electronic detonator assembly 2 needs to be controlled as a pyrotechnic item, while the lead wire assembly 1 is controlled as a regular accessory, it can be produced, transported and stored separately and is not subject to pyrotechnic item control. At the blasting site, the electronic detonator assembly 2 and the lead wire assembly 1 can be used simply by inserting them together.

[0038] In a preferred embodiment, the line card 11 is provided with a first card slot 111 for mounting the barcode plate 3.

[0039] In the above embodiments, the corresponding QR code is sprayed onto the barcode plate 3, and the barcode plate 3 is installed on the online card 11 through the first card slot 111. The specific information of the corresponding lead wire component 1 can be traced through the barcode plate 3.

[0040] In a preferred embodiment, the side of the second injection-molded body 222 is provided with a second slot 2224 for mounting the barcode plate 3.

[0041] In the above embodiments, the corresponding QR code is sprayed onto the barcode plate 3. By installing the barcode plate 3 on the side of the second injection molding body 222 through the second slot 2224, the specific information of the corresponding electronic detonator assembly 2 can be traced through the barcode plate 3.

[0042] In a preferred embodiment, an O-ring 143 is connected between the connecting portion 141 and the annular protrusion 142 of the first injection molded body 14. Its function is to ensure that the internal PCB assembly 221 is sealed and waterproof when the first injection molded body 14 and the second injection molded body 222 are inserted into each other.

[0043] In a preferred embodiment, the PCB board 2211 is elongated, the electronic component 2214 is connected to the middle of the PCB board 2211, the pin 2212 is connected to the PCB board 2211 near the first end, the ignition head 2213 is connected to the PCB board 2211 near the second end, the width of the second end of the PCB board 2211 is narrower than the width of the middle part, and the width of the part between the middle part and the first end of the PCB board 2211 is smaller than the width of the middle part.

[0044] The above structure allows the PCB board 2211 to be easily inserted into the detonator 21 of the base detonator. The PCB board 2211 is thinner at the injection molding of the second injection body 222 to prevent damage to the PCB board 2211 during injection molding and sealing.

[0045] As another implementation, the pin 2212 and the PCB board 2211 are connected by wires, which can reduce the length of the PCB board 2211.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A field-connected electronic detonator without ignition lead wire, characterized in that, Includes lead wire assembly, electronic detonator assembly, and barcode board; The lead wire assembly includes a lead wire clip, a lead wire body, a socket, and a first injection molded body; One end of the lead wire body is connected to the wire clip, and the other end is riveted to the socket. The first injection molded body is injection molded to the outside of the socket. The first injection molded body includes a cylindrical connecting part and an annular protrusion connected to the root of the connecting part. The end of the connecting part is provided with two insertion holes. The circumferential surface of the connecting part is provided with a strip groove. The two sides of the annular protrusion are respectively connected with ear clips facing the connecting part. The electronic detonator assembly includes a base detonator and an electronic control module connected to the end of the base detonator; The electronic control module includes a PCB assembly and a second injection molded body; The PCB assembly includes a PCB board, as well as pins, ignition heads, and electronic components connected to the PCB board; the PCB board is inserted into the base detonator. The second injection molding body is injection molded to the outside of the pin part of the PCB. The end of the second injection molding body is provided with a cylindrical hole that transitions or interferes with the connection part of the first injection molding body. The pin is located in the cylindrical hole. The inner wall of the cylindrical hole is provided with a protrusion that matches the strip groove. Limiting grooves are provided on both sides of the second injection molding body for engaging with the ear clip.

2. The field-connected electronic detonator without ignition lead wire according to claim 1, characterized in that, The line card is provided with a first card slot for installing the barcode plate.

3. The field-connected electronic detonator without ignition lead wire according to claim 1, characterized in that, The side of the second injection molded body is provided with a second slot for mounting a barcode plate.

4. The field-connected electronic detonator without ignition lead wire according to claim 1, characterized in that, An O-ring is connected between the connecting part of the first injection molded body and the annular convex edge.

5. The field-connected electronic detonator without ignition lead wire according to claim 1, characterized in that, The PCB board is elongated, with electronic components connected to the middle of the PCB board, pins connected to the first end of the PCB board, and an ignition head connected to the second end of the PCB board. The width of the second end of the PCB board is narrower than the width of the middle part, and the width of the part between the middle and the first end of the PCB board is smaller than the width of the middle part.

6. The field-connected electronic detonator without ignition lead wire according to claim 1, characterized in that, The pins and the PCB are connected by wires.

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