Quick-insert electronic detonator
Patent Information
- Application Number
- CN202522529541.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0004]上述相关技术的电子雷管存在以下缺陷:在该电子雷管生产时,脚线连接头的两个导电件首先需要通过焊接工艺与两根脚线固定,然后组装绝缘支撑件使两个导电件固定及绝缘,最后通过注塑工艺形成母头插接端;同样地,电子控制模组的两个导电簧片,需要通过冲压形成导电柱和导电环,然后组装绝缘支撑件使导电柱和导电环固定及绝缘,最后通过注塑工艺形成公头插接端;因此该电子雷管结构较为复杂,生产工艺繁琐,且自动化生产的难度较大,生产效率较低
[0016]综上所述,本申请一种快插式电子雷管与相关技术相比,具有以下优点:该快插式电子雷管在脚线上直接注塑第一胶塞,且使脚线的两个线芯自由端向外伸出第一胶塞的端面形成两个导电插接端,也即脚线的公插;在电子控制模组端设置绝缘的支撑件,该支撑件两个绝缘的腔体内设置有导电介质,两个腔体内的导电介质分别通过导电件与控制电路板电性连接,支撑件、导电件和控制电路板外侧包设第二胶塞,从而使支撑件的敞开端形成母插;然后使脚线的两个导电插接端分别插入支撑件的两个腔体内并与其中的导电介质接触导通,最后安装雷管壳体使脚线和电子控制模组端组合在一起完成电子雷管的组装。该快插式电子雷管利用脚线伸出第一胶塞的两个线芯构成脚线公插,且在支撑件的两个相互绝缘的腔体内填充导电介质形成电子控制模组的母插结构,其不仅结构简单、生产工艺简单,而且电子雷管的整个生产或组装均适用于自动化生产、装配,生产效率高。再者,支撑件内设置导电介质形成的母插和脚线的两个线芯形成的公插,二者没有插接角度限制,因此满足任一角度的快速插接配合,适用于自动化快速组装需求。
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Figure CN224815536U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of blasting equipment technology, specifically to a quick-connect electronic detonator. Background Technology
[0002] In the field of blasting, electronic detonators can be controlled by an electronic control system to control the blasting process, ultimately detonating the electronic detonator via an initiator. In use, the electronic detonator is connected to leads via a connecting structure, then the leads are connected to a busbar, and finally the busbar is connected to the initiation device. This allows the detonation signal to be transmitted to the control circuit board via the busbar and leads. A delay chip sets a preset time delay, and then the control circuit board issues a detonation command based on the delay, thus achieving detonation control.
[0003] The electronic detonator of the related technology has a structure including a lead wire connector, an electronic control module, and a detonator housing filled with explosive; the lead wire connector is connected to the lead wire, and the lead wire connector has a female plug; the electronic control module includes a control circuit board and a male plug electrically connected to the control circuit board, the electronic control module is connected inside the detonator housing, and the male plug and female plug of the electronic control module are mated and plugged in. Specifically, as in the Chinese patent application CN223564862U entitled "Blind-plug Electronic Detonator," the cores of the two leads of the lead connector are each welded with two conductive elements, which are fixed and insulated by an insulating support, forming the plug-in end of the lead connector, i.e., the female plug. Two conductive springs are welded onto the control circuit board of the electronic control module. The ends of the two conductive springs away from the control circuit board are stamped with a conductive post located in the center and a conductive ring surrounding the conductive post. The conductive post and the conductive ring are fixed and insulated by an insulating support, forming the plug-in end of the electronic control module, i.e., the male plug. The female plug and the male plug are then plugged in and fixed to complete the insertion of the electronic detonator.
[0004] The electronic detonators described above have the following drawbacks: During the production of this electronic detonator, the two conductive parts of the lead wire connector first need to be fixed to the two lead wires through a welding process, then an insulating support is assembled to fix and insulate the two conductive parts, and finally a female connector is formed through an injection molding process; similarly, the two conductive springs of the electronic control module need to be stamped to form conductive posts and conductive rings, then an insulating support is assembled to fix and insulate the conductive posts and conductive rings, and finally a male connector is formed through an injection molding process; therefore, the electronic detonator has a relatively complex structure, a cumbersome production process, and is difficult to automate, resulting in low production efficiency. Utility Model Content
[0005] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a quick-connect electronic detonator that is simple in structure, suitable for automated production and assembly, and has high production efficiency.
[0006] The technical solution of this application is to provide a quick-connect electronic detonator having the following structure: including... The lead wire has a first rubber plug injection molded at its end, and the two wire cores of the lead wire extend out of the end face of the first rubber plug along the length direction to form two conductive plug terminals. An electronic control module includes an insulated support member and two conductive members respectively connected to a control circuit board. The support member is hollow and open at one end, with an annular wall dividing its interior into two mutually insulated cavities. Each cavity contains a conductive medium. The ends of the two conductive members furthest from the control circuit board are electrically connected to the conductive medium in each cavity. A second rubber plug extending to the control circuit board is provided on the outside of the support member and the conductive members. Two conductive connectors are inserted into the two cavities from the open end of the support member and make contact with the conductive medium therein. A detonator housing filled with explosives is fitted onto the electronic control module, and the insertion end of the detonator housing is sealed to the first rubber plug.
[0007] In some embodiments, one conductive plug end of the lead wire is located at the center of the first rubber plug, and the other conductive plug end is located off-center from the first rubber plug; the annular wall is concentrically arranged with the support member, and when the lead wire is plugged into the electronic control module, the conductive plug end located at the center of the first rubber plug is inserted into the cavity inside the annular wall, and the other conductive plug end is inserted into the cavity outside the annular wall.
[0008] In some embodiments, the inner walls of the open ends of the two cavities are respectively provided with guide slopes that are larger on the outside and smaller on the inside.
[0009] In some embodiments, the filling height of the conductive medium is lower than the end face of the annular wall.
[0010] In some embodiments, the conductive medium is a conductive adhesive.
[0011] In some embodiments, the support member is provided with two insertion holes that are respectively connected to the two cavities, and the two conductive members are respectively inserted into the two cavities through the two insertion holes.
[0012] In some embodiments, the second plug is injection molded onto the outside of the support, the conductive element, and part of the control circuit board.
[0013] In some embodiments, the outer circumferential wall of the second rubber plug near the foot wire is provided with a plurality of radially outwardly protruding annular protrusions along the axial direction.
[0014] In some embodiments, the first rubber plug is provided with a limiting step for the insertion end of the detonator housing to abut against it.
[0015] In some embodiments, the outer wall of the detonator housing insertion end is axially pressed with a plurality of spaced annular grooves, and each of the annular grooves forms a radially recessed annular protrusion within the detonator housing that is embedded in the first rubber plug.
[0016] In summary, compared with related technologies, the quick-connect electronic detonator of this application has the following advantages: The quick-connect electronic detonator has a first rubber plug directly injection molded onto the lead wire, with the two free ends of the lead wire extending outwards from the end face of the first rubber plug to form two conductive plug-in terminals, i.e., the male plug of the lead wire; an insulating support is provided at the electronic control module end, with conductive media disposed in the two insulating cavities of the support, and the conductive media in the two cavities are electrically connected to the control circuit board through conductive components; a second rubber plug is wrapped around the support, conductive components, and control circuit board, thus forming a female plug at the open end of the support; then, the two conductive plug-in terminals of the lead wire are respectively inserted into the two cavities of the support and make contact with the conductive media therein for conduction; finally, the detonator housing is installed to combine the lead wire and the electronic control module end to complete the assembly of the electronic detonator. This quick-connect electronic detonator utilizes two leads extending from the first rubber plug to form a male lead connector, and fills two mutually insulated cavities in the support component with conductive medium to form a female connector structure for the electronic control module. It not only boasts a simple structure and manufacturing process, but also allows for automated production and assembly of the entire electronic detonator, resulting in high production efficiency. Furthermore, the female connector formed by the conductive medium within the support component and the male connector formed by the two leads have no angle limitations, thus satisfying the need for quick connection at any angle, making it suitable for automated rapid assembly requirements. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a quick-connect electronic detonator according to some embodiments of this application.
[0018] Figure 2 This is a cross-sectional structural schematic diagram of a quick-connect electronic detonator according to some embodiments of this application.
[0019] Figure 3 yes Figure 2 Enlarged view of part A in the image.
[0020] Figure 4 This is a schematic diagram of the lead wire structure of a quick-connect electronic detonator according to some embodiments of this application.
[0021] Figure 5 This is a schematic diagram of the lead assembly structure of a quick-connect electronic detonator according to some embodiments of this application.
[0022] Figure 6 This is a schematic diagram of the electronic control module of a quick-connect electronic detonator according to some embodiments of this application.
[0023] Figure 7 This is a schematic diagram of the internal structure of the electronic control module of a quick-connect electronic detonator according to some embodiments of this application.
[0024] Figure 8 This is a schematic diagram of the assembly structure of the electronic control module of a quick-connect electronic detonator according to some embodiments of this application.
[0025] Figure 9 This is a structural schematic diagram of a support member for a quick-connect electronic detonator according to some embodiments of this application.
[0026] Figure 10 This is a cross-sectional structural schematic diagram of a support member for a quick-connect electronic detonator according to some embodiments of this application.
[0027] Figure 11 This is a schematic diagram of the assembly structure of a quick-connect electronic detonator according to some embodiments of this application.
[0028] Explanation of reference numerals in the attached figures: 1. Lead wire; 100. Outer sheath; 101. First conductive plug; 102. Second conductive plug; 103. First rubber plug; 104. Limiting step; 2. Electronic control module; 200. Control circuit board; 201. Capacitor; 202. Conductive component; 203. Support component; 204. Second rubber plug; 205. Annular wall; 206. Central cavity; 207. Outer cavity; 208. Conductive medium; 209. Inlet ramp; 210. Annular protrusion; 3. Detonator housing; 300. Annular groove; 301. Annular protrusion; 302. Explosive. Detailed Implementation
[0029] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0033] See Figures 1 to 11 As shown in the embodiment of this application, a quick-connect electronic detonator is disclosed. The quick-connect electronic detonator includes a lead wire 1, an electronic control module 2, and a detonator housing 3 filled with explosive 302. The lead wire 1 has two wire bundles and an outer sheath 100 covering the outside of the two wire bundles. The cores of the two wire bundles are electrically connected to the electronic control module 2, and then installed into the detonator housing 3 to form an electronic detonator.
[0034] Specifically, the detonator housing 3 is closed at one end and open at the other, serving as an insertion end, with explosive 302 filled inside the closed end. The electronic control module 2 includes a control circuit board 200, a capacitor 201 connected to the control circuit board 200, and a connector connected to the lead wire 1. The control circuit board 200 of the electronic control module 2 is at least partially inserted into the explosive 302, and the ignition contacts on the control circuit board 200 are in contact with the explosive 302. The capacitor 201 is used to store charge and release it when the trigger signal arrives. During the detonation of the electronic detonator, it is used for a preset time delay ignition. Then, the control circuit board 200 issues a detonation command according to the delay to achieve detonation control. After the lead wire 1 is connected to the connector of the electronic control module 2, the entire module is installed inside the detonator housing 3, and the electronic control module 2 encloses the explosive 302 inside the detonator housing 3.
[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, lead wire 1 has two wires, one live wire and one neutral wire. In this embodiment, a first rubber plug 103 is injection molded at the end of lead wire 1, and the cores of the two wires of lead wire 1 extend out of the end face of the first rubber plug 103 along the length direction to form two conductive plug terminals.
[0036] For example, see Figure 2 , Figure 4 and Figure 5As shown, the outer sheath of the two wire bundles of lead wire 1 is removed to expose the wire cores. Then, the ends of the two wire bundles are placed into a low-pressure injection mold for injection molding of the first rubber plug 103. The first rubber plug 103 is cylindrical and extends axially after injection molding, covering at least part of the outer sheath 100 of lead wire 1. The outer end of the first rubber plug 103 exposes the wire cores of the two wire bundles, forming two conductive plug terminals, i.e., male plug terminals. When using automated equipment for production, lead wire 1 is cut, the outer sheath of the two wire bundles of lead wire 1 is removed, and then the first rubber plug 103 is injected into the low-pressure injection mold to complete the production of lead wire 1. The lead wire 1 has a simple structure and a simple production process.
[0037] Furthermore, in this embodiment, the electronic control module 2 also includes an insulating support member 203 and two conductive members 202. The support member 203 is an insulating plastic part, and the support member 203 is cylindrical and hollow inside. One end of the support member 203 is open and the other end is closed. An annular wall 205 is provided axially inside the support member 203, and the annular wall 205 divides the interior of the support member 203 into two mutually insulated cavities, labeled as a central cavity 206 and an outer cavity 207. A conductive medium 208 is provided in both cavities; the two conductive members The 202 is elongated and strip-shaped. One end of the two conductive elements 202 is soldered to the control circuit board 200 for conduction. The ends of the two conductive elements 202 away from the control circuit board 200 are inserted into the two cavities and contact the conductive medium 208 in the two cavities to form an electrical connection. The support member 203 and the two conductive elements 202 are covered with a second rubber plug 204 extending to the control circuit board 200. The open end of the support member 203 exposes the outer end face of the second rubber plug 204 to form a plug end that is inserted into the two conductive plug ends of the lead wire 1, that is, the female plug end.
[0038] For example, see Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, the closed end of the support member 203 faces the control circuit board 200, and the open end faces outward or towards the lead wire 1. The central cavity 206 and the outer cavity 207 of the support member 203 are respectively filled with conductive medium 208. The two conductive members 202 are conductive spring stamping structures, one end of which is welded and fixed to the control circuit board 200, and the other end is inserted into the support member 203 and extends into the central cavity 206 and the outer cavity 207 of the support member 203, respectively, and makes contact with the conductive medium 208 in the central cavity 206 and the outer cavity 207 to form an electrical connection; however... The support 203, control circuit board 200, and two conductive parts 202 connecting the support 203 and control circuit board 200 are then placed as a whole into a low-pressure injection mold for injection molding of the second plug 204. The second plug 204 is cylindrical and extends axially after injection molding, covering the support 203, the two conductive parts 202, and at least part of the control circuit board 200, so that the support 203, the two conductive parts 202, and the control circuit board 200 are fixed and sealed to ensure the waterproof performance of the electronic control module 2.
[0039] In some embodiments, in order to facilitate the insertion of two conductive elements 202 into the support member 203 and into the central cavity 206 and the outer cavity 207 of the support member 203 respectively, two insertion holes (not shown in the figure) are provided on the support member 203, which are respectively connected to the two cavities. The conductive elements 202 are inserted into the two cavities through the two insertion holes respectively.
[0040] Understandably, after the lead wire 1 and the electronic control module 2 are manufactured, the two conductive plug-in ends of the lead wire 1 are inserted into the two cavities from the open end of the support 203 and make contact with the conductive medium 208 therein, thereby completing the insertion operation of the lead wire 1 and the electronic control module 2. Since the two conductive plug-in ends of the lead wire 1 only need to be inserted and made contact with the conductive medium 208 in the two cavities of the support 203, it is only necessary to insert the two conductive plug-in ends of the lead wire 1 into the central cavity 206 and the outer cavity 207 respectively. The insertion angle does not need to be considered. Therefore, the insertion operation can be easily completed on automated equipment without manual correction, thus improving the insertion efficiency.
[0041] See Figure 1 , Figure 2 and Figure 11As shown, after the lead wire 1 and the electronic control module 2 are plugged in, they can be completely installed into the detonator housing 3 filled with explosive 302 for sealing. In order to facilitate the plugging and sealing of the detonator housing 3, an annular limiting step 104 facing the electronic control module 2 is provided on the first rubber plug 103 of the lead wire 1. The detonator housing 3 is made of metal. After the two conductive plug ends of the lead wire 1 are plugged into the plug ends of the electronic control module 2, the insertion end of the detonator housing 3 is sleeved on the electronic control module 2 from the control circuit board 200 end of the electronic control module 2 until the end face of the insertion end of the detonator housing 3 abuts against the limiting step 104 on the first rubber plug 103 of the lead wire 1. Then, it is rolled by an automated pressing equipment so that multiple annular grooves 300 are axially pressed on the outer side wall of the insertion end of the detonator housing 3, and each annular groove 300 forms an annular protrusion 301 that is radially recessed and embedded in the first rubber plug 103 inside the detonator housing 3. This not only makes the detonator housing 3 more stable and secure, preventing the detonator housing 3 from falling off, but also provides a sealing and waterproof function; moreover, the product bonding strength between the lead wire 1 and the electronic control module 2 can withstand a static load of 15kg for 1 minute, and ensures normal operation in working environments from -60 to 120 degrees Celsius.
[0042] Understandably, in this quick-connect electronic detonator, the first rubber plug 103 is directly injection molded onto the lead wire 1, and the two free ends of the lead wire 1 extend outward from the end face of the first rubber plug 103 to form two conductive plug ends, i.e., the male plug of the lead wire 1; an insulating support 203 is provided at the end of the electronic control module 2, and conductive medium 208 is provided in the two insulating cavities of the support 203. The conductive medium 208 in the two cavities is electrically connected to the control circuit board 200 through the conductive component 202, respectively. The support 203, the conductive component 202 and the control circuit board 200 are covered with a second rubber plug 204, so that the open end of the support 203 forms a female plug; then the two conductive plug ends of the lead wire 1 are respectively inserted into the two cavities of the support 203 and make contact with the conductive medium 208 therein to conduct electricity. Finally, the detonator housing 3 is installed to combine the lead wire 1 and the electronic control module 2 to complete the assembly of the electronic detonator.
[0043] This embodiment of the quick-connect electronic detonator utilizes the two cores of the lead wire 1 extending from the first rubber plug 103 to form the male connector of the lead wire 1, and fills the two mutually insulated cavities of the support member 203 with conductive medium 208 to form the female connector structure of the electronic control module 2. This design is not only simple in structure and manufacturing process, but also suitable for automated production and assembly of the entire electronic detonator, resulting in high production efficiency. Furthermore, the support member 203 contains both the female connector formed by the conductive medium 208 and the male connector formed by the two cores of the lead wire 1, with no limitation on the insertion angle. Therefore, it satisfies the requirement for quick connection at any angle, making it suitable for automated rapid assembly.
[0044] In the above embodiment, the conductive medium 208 filled in the central cavity 206 and outer cavity 207 of the support member 203 is preferably a conductive adhesive. This conductive adhesive is an adhesive with a certain degree of conductivity, mainly composed of a resin matrix, conductive particles, dispersing additives, and auxiliaries. The matrix mainly includes epoxy resin, acrylic resin, polyurethane, etc. After the two conductive plug-in ends formed by the two wire cores of the lead wire are plugged into the conductive adhesive, good contact between the positive and negative electrodes can be ensured. This conductive adhesive is a relatively mature conductive material in the prior art, and will not be described in detail in this embodiment.
[0045] In other embodiments, the conductive medium 208 may also be conductive grease, conductive sponge, etc.
[0046] In this embodiment, lead wire 1 and electronic control module 2 can be manufactured independently, allowing lead wire 1 and electronic control module 2 to be packaged and transported separately. After arriving at the destination, they can be plugged in and assembled, and then sealed with the detonator housing 3, which greatly improves the safety of transportation.
[0047] In some embodiments, to achieve blind insertion of the lead wire 1 and the electronic control module 2 without considering the insertion angle, facilitating user assembly or suitable for automated insertion assembly, one conductive plug-in end of the lead wire 1 is positioned at the center of the first rubber plug 103, and the other conductive plug-in end is positioned off-center from the center of the first rubber plug 103. The annular wall 205 of the support member 203 is concentrically positioned with the support member 203. When the lead wire 1 and the electronic control module 2 are inserted, the conductive plug-in end located at the center of the first rubber plug 103 is inserted into the cavity inside the annular wall 205, and the other conductive plug-in end is inserted into the cavity outside the annular wall 205.
[0048] For example, see Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 9 and Figure 10As shown, during the injection molding of the first rubber stopper 103, one core of the lead wire 1 is placed in the center of the mold cavity, and the other core is placed in an off-center position of the mold cavity. After the first rubber stopper 103 is injection molded, one core of the two leads is located in the center of the first rubber stopper 103, and the other core is located in an off-center position of the first rubber stopper 103. That is, of the two conductive plug terminals, the first conductive plug terminal 101 is located in the center of the first rubber stopper 103, and the second conductive plug terminal 102 is located in an off-center position of the first rubber stopper 103. The distance between the first conductive plug terminal 101 and the second conductive plug terminal 102 should preferably be greater than the wall thickness of the annular wall 205 of the support member 203. The central cavity 206 inside the annular wall 205 of the support member 203 is used to accommodate the first conductive plug-in terminal 101, and the outer cavity 207 outside the annular wall 205 is used to accommodate the second conductive plug-in terminal 102. The outer cavity 207 is annularly arranged. When the first conductive plug-in terminal 101 and the second conductive plug-in terminal 102 are respectively inserted into the central cavity 206 and the outer cavity 207, the lead wire 1 can rotate about the first conductive plug-in terminal 101 as the axial direction, so that the second conductive plug-in terminal 102 can rotate in the outer cavity 207. That is, the insertion position of the second conductive plug-in terminal 102 in the outer cavity 207 is not restricted, thereby realizing the insertion of the lead wire 1 and the electronic control module 2 at any angle.
[0049] It is easy to understand that the first conductive plug-in end 101 and the second conductive plug-in end 102, which are formed by the two cores of the lead wire 1, have relatively lower stiffness compared to the metal spring. In order to prevent the first conductive plug-in end 101 and the second conductive plug-in end 102 from bending during insertion when the lead wire 1 is plugged into the electronic control module 2 on the automated equipment, in this embodiment, see... Figure 9 and Figure 10 As shown, the inner walls of the open ends of the two cavities of the support member 203 are respectively provided with guide slopes 209, which are larger on the outside and smaller on the inside. When the first conductive plug-in end 101 and the second conductive plug-in end 102 of the lead wire 1 move towards the electronic control module 2 for insertion, the guide slopes 209 on the inner walls of the open ends of the two cavities of the support member 203 can guide the free ends of the first conductive plug-in end 101 and the second conductive plug-in end 102 to quickly insert into the two cavities, avoiding the two conductive plug-in ends from being obstructed and bent during insertion.
[0050] In some embodiments, see Figure 3 and Figure 11 As shown, to further improve the connection strength of the detonator housing 3, multiple radially protruding annular protrusions 210 are provided on the outer circumferential wall of the second rubber plug 204 near the lead wire 1. After the detonator housing 3 is fitted onto the electronic control module 2, the annular protrusions 210 abut against and seal against the inner wall of the detonator housing 3, thereby making the connection between the detonator housing 3 and the electronic control module 2 more secure and stable.
[0051] See Figures 1 to 11 As shown, another embodiment of this application discloses a method for preparing a quick-connect electronic detonator, which includes the following steps: S1, after removing the outer sheath of the lead wire 1, it is placed into a mold and a first rubber plug 103 is injected, and the two cores of the lead wire 1 extend out of the first rubber plug 103 to form two conductive plug ends; S2, the two conductive components 202 are respectively connected to the control circuit board 200 and the insulating support component 203 filled with conductive medium 208 to form the electronic control module 2 base, wherein the support component 203 is hollow inside and open at one end, and has an annular wall 205 inside, the annular wall 205 will The support member 203 is internally divided into two mutually insulated cavities, both of which are filled with conductive adhesive; S3, the electronic control module 2 base is placed into the mold and the second adhesive plug 204 is injected, and the open end of the support member 203 extends axially out of the second adhesive plug 204; S4, the two conductive plug ends of the lead wire 1 are respectively inserted into the two cavities from the open end of the support member 203 and make contact with the conductive adhesive therein; S5, the detonator housing 3 filled with explosive 302 is sleeved on the electronic control module 2, and the insertion end of the detonator housing 3 is sealed and connected to the first adhesive plug 103.
[0052] It is understandable that in step S1 of the above-mentioned quick-connect electronic detonator preparation method, one of the wire cores of the lead wire 1 is fixed in the center of the mold cavity, and the other wire core is fixed in a position away from the center of the mold cavity. After the first rubber stopper 103 is injection molded, the two wire cores of the lead wire 1 extend out of the end face of the first rubber stopper 103 respectively, with one wire core located in the center of the end face of the first rubber stopper 103 and the other wire core located in a position away from the center of the end face of the first rubber stopper 103.
[0053] In step S2 above, one end of each of the two conductive components 202 is welded and fixed to the control circuit board 200, and the other ends of each conductive component 202 pass through the closed end of the support component 203 and are inserted into the two cavities of the support component 203, so that the open end of the support component 203 faces outward. In step S3, after the injection molding of the second rubber plug 204 is completed, the open end of the support component 203 forms a plug-in interface for insertion with the lead wire 1. The manufacturing method of the quick-connect electronic detonator in this embodiment is not only simple in manufacturing process and improves manufacturing efficiency, but also each manufacturing step can be completed on automated equipment, thereby greatly improving the production efficiency of the quick-connect electronic detonator.
[0054] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.
[0055] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0056] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A quick-connect electronic detonator, characterized in that: include The lead wire has a first rubber plug injection molded at its end, and the two wire cores of the lead wire extend out of the end face of the first rubber plug along the length direction to form two conductive plug terminals. An electronic control module includes an insulated support member and two conductive members respectively connected to a control circuit board. The support member is hollow and open at one end, with an annular wall dividing its interior into two mutually insulated cavities. Each cavity contains a conductive medium. The ends of the two conductive members furthest from the control circuit board are electrically connected to the conductive medium in each cavity. A second rubber plug extending to the control circuit board is provided on the outside of the support member and the conductive members. Two conductive connectors are inserted into the two cavities from the open end of the support member and make contact with the conductive medium therein. A detonator housing filled with explosives is fitted onto the electronic control module, and the insertion end of the detonator housing is sealed to the first rubber plug.
2. The quick-connect electronic detonator according to claim 1, characterized in that: One conductive plug end of the lead wire is located at the center of the first rubber plug, and the other conductive plug end is located off the center of the first rubber plug; the annular wall is concentrically arranged with the support member, and when the lead wire is plugged into the electronic control module, the conductive plug end located at the center of the first rubber plug is inserted into the cavity inside the annular wall, and the other conductive plug end is inserted into the cavity outside the annular wall.
3. The quick-connect electronic detonator according to claim 2, characterized in that: The inner walls of the open ends of the two cavities are respectively provided with guide slopes that are larger on the outside and smaller on the inside.
4. The quick-connect electronic detonator according to claim 1, characterized in that: The filling height of the conductive medium is lower than the end face of the annular wall.
5. The quick-connect electronic detonator according to any one of claims 1 to 4, characterized in that: The conductive medium is a conductive adhesive.
6. The quick-connect electronic detonator according to claim 1, characterized in that: The support member has two insertion holes that are respectively connected to the two cavities, and the two conductive members are respectively inserted into the two cavities through the two insertion holes.
7. The quick-connect electronic detonator according to claim 1, characterized in that: The second rubber plug is injection molded onto the outside of the support, the conductive component, and part of the control circuit board.
8. The quick-connect electronic detonator according to claim 7, characterized in that: The second rubber plug has multiple radially protruding annular protrusions on the outer circumferential wall of the end near the lead wire.
9. The quick-connect electronic detonator according to claim 1, characterized in that: The first rubber stopper is provided with a limiting step for the insertion end of the detonator housing to abut against it.
10. The quick-connect electronic detonator according to claim 9, characterized in that: The outer wall of the detonator housing insertion end is axially pressed with a plurality of spaced annular grooves, and each annular groove forms a radially recessed annular protrusion that is embedded in the first rubber plug within the detonator housing.
Citation Information
Patent Citations
Blind insertion type electronic detonator
CN223564862U