Electronic detonator with real-time temperature measurement function

Abstract

The application discloses an electronic detonator with a real-time temperature measuring function and relates to the technical field of electronic detonators.The electronic detonator comprises a shell, a control area, a temperature control area and an initiation area arranged in the shell from top to bottom, a foot wire penetrating into and fixedly arranged on the upper end of the shell, an initiator electrically connected to one side of the foot wire, an initiation assembly arranged in the shell, and a temperature control assembly arranged on the initiation assembly.During initiation, the initiator sequentially transmits electric current to an ignition rod through the foot wire, an initiation wire, an electric connection wire, an electric connection column and an electric connection cylinder, the ignition rod generates electric sparks, the electric sparks ignite the explosive in the initiation area, after the explosive in the initiation area is ignited, a large amount of impact force is generated and impacts the reinforcing sheet, the reinforcing sheet is pressed to move, the fire outlet hole on the reinforcing sheet is pressed to move and thus is separated from the hole plug, at this time, the fire outlet hole is opened, the explosive in the initiation area is exploded and is forced out of the fire outlet hole, thereby initiating the explosive outside the electronic detonator to complete a blasting operation.

Description

Technical Field

[0001] This invention relates to the field of electronic detonator technology, specifically to an electronic detonator with real-time temperature measurement function. Background Technology

[0002] In mining and infrastructure blasting projects, electronic detonators have gradually replaced traditional fire detonators and ordinary electric detonators, becoming the mainstream detonating material for blasting operations due to their advantages of precise detonation timing and strong anti-interference capabilities. However, in current technology, electronic detonators only have the functions of energizing and simple circuit detection, lacking real-time monitoring of ambient temperature and a high-temperature safety self-locking structure, which poses safety hazards in explosive storage, long-distance transportation, and high-temperature open-air construction scenarios.

[0003] The temperature of the storage, transportation, and construction environment of detonators is easily affected by sunlight, geothermal heat, and high summer temperatures, which can cause the temperature to rise continuously. Traditional electronic detonators do not have graded temperature control protection and rely solely on manual temperature measurement at regular intervals, which can easily lead to the omission of high temperature hazards. When the ambient temperature continues to rise to the dangerous range, the thermal activity of the detonator's internal agent increases, posing a risk of spontaneous combustion and premature detonation.

[0004] Therefore, this invention proposes an electronic detonator with real-time temperature measurement function. Summary of the Invention

[0005] The purpose of this invention is to provide an electronic detonator with real-time temperature measurement function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electronic detonator with real-time temperature measurement function, comprising a tube shell, wherein the tube shell contains, from top to bottom, a control zone, a temperature control zone, and an initiation zone; a lead wire extends through and is fixedly installed at the upper end of the tube shell; an initiator is electrically connected to one side of the lead wire; an initiation assembly is disposed inside the tube shell; a temperature control assembly is disposed on the initiation assembly; the temperature control assembly is located within the temperature control zone; pins are fixedly installed within the control zone; a circuit board is fixedly connected to the pins; a reinforcing cap is movably connected to the bottom of the tube shell; and a reinforcing assembly is disposed on the reinforcing cap. Preferably, the detonation assembly includes an insulating heat-resistant plate, which is fixedly connected within the temperature control zone. A flashlight is embedded and fixedly installed at the center of the upper surface of the insulating heat-resistant plate. An ignition rod is fixedly installed at the bottom of the insulating heat-resistant plate. The ignition rod and the flashlight are electrically connected. A terminal is inserted into and slidably connected to the flashlight. A terminal wire is electrically connected to the upper end of the terminal. A T-sleeve extends through and is fixedly connected to the upper end of the terminal wire. The T-sleeve extends through and slidably connects to the circuit board. One end of the terminal wire extending out of the T-sleeve is electrically connected to the detonation wire. The detonation wire and the lead wire are electrically connected. The temperature control assembly includes a thermal expansion ring, which is attached to the upper surface of the insulating heat-resistant plate. A heat-insulating sheet is attached to the upper end of the thermal expansion ring. The terminal extends through and is fixedly connected to the heat-insulating sheet.

[0007] Preferably, a support ring is fixedly installed in the temperature control zone, and a plurality of first springs are fixedly connected at equal intervals in a ring at the bottom of the support ring, with the lower end of the first springs fixedly connected to the heat insulation sheet.

[0008] Preferably, the insulating heat-resistant plate has an annular hole, and an annular guide plate extends through and is slidably connected to the annular hole. One end of the annular guide plate extending out of the annular hole is attached to the inner side of the thermal expansion ring. A limiting ring is fixedly connected to the upper outer side of the thermal expansion ring. The middle and lower ends of the thermal expansion ring are attached to and slidably connected to the limiting ring. Both the annular guide plate and the limiting ring are made of ceramic material.

[0009] Preferably, a support cylinder is fixedly connected to the upper end of the power connection post. The support cylinder is made of insulating and heat-resistant material. The upper end of the support cylinder is fixedly connected to the bottom of the T-shaped sleeve, and the power connection wire is located inside the T-shaped sleeve.

[0010] Preferably, the circuit board is electrically connected to a communication line, the communication line is electrically connected to a lead wire, the lead wire is electrically connected to a warning line, one end of the warning line extends into a T-shaped sleeve and is electrically connected to a connecting wire, the connecting wire is electrically connected to a contact ring, and the contact ring is embedded and fixedly connected to the inner wall of the support cylinder.

[0011] Preferably, the outer wall of the tube shell is provided with heat inlet holes in an annular pattern at equal intervals, and the heat inlet holes are arranged corresponding to the thermal expansion ring.

[0012] Preferably, a guide strip extends through and is slidably connected to the heat inlet hole, and the guide strip is fixedly connected to the bottom of the outer wall of the limiting ring outside the thermal expansion ring.

[0013] Preferably, a temperature sensor is fixedly connected to the guide strip, the temperature sensor is electrically connected to the lead wire, a 60-degree line is fixedly connected to one side wall of the heat inlet hole, an 80-degree line is set on the 60-degree line, the 80-degree line is fixedly connected inside the heat inlet hole, and a colored wax is set on one side of the guide strip, the colored wax corresponding to the side wall of the heat inlet hole where the 60-degree line is located.

[0014] Preferably, the reinforcing component includes two corresponding reinforcing plates, a second spring is fixedly connected between the two reinforcing plates, corresponding flare holes are opened on the two reinforcing plates, one reinforcing plate is embedded and fixedly connected to the reinforcing cap, and a plug is inserted into the flare hole on the other reinforcing plate, the plug being fixedly connected within the detonation zone.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention involves placing explosives in the detonation zone. During detonation, the detonator sequentially transmits current to the ignition rod via a lead wire, detonation wire, connecting wire, connecting post, and connecting flashlight. The ignition rod emits an electric spark, igniting the explosives in the detonation zone. After the explosives in the detonation zone are ignited, a large impact force is generated, impacting the reinforcing plate. This causes the reinforcing plate to move under pressure, and the ignition hole on the reinforcing plate moves under pressure, thus moving away from the plug. At this time, the ignition hole is opened, and the explosives in the detonation zone explode and rush out of the ignition hole, thereby detonating the explosives outside the electronic detonator to complete the blasting operation. 2. This invention, when not detonated, uses a plug inserted into the ignition hole. Under the elastic force of the second spring, the ignition hole on the reinforcing plate is always blocked and sealed by the plug. Thus, during transportation, storage, and handling, even if the electronic detonator is subjected to bumps, compression, or impacts, the elastic force of the second spring can compensate for slight displacement of the reinforcing plate, ensuring a tight fit between the plug and the ignition hole. This prevents the leakage of explosive powder and agents from the detonation zone, avoiding the risk of spontaneous combustion and deflagration caused by explosive leakage, thereby improving the safety performance of this electronic detonator during storage and transportation. During detonation... When the explosive in the detonation zone detonates, the energy generated is concentrated and ejected through the ignition port, resulting in minimal energy loss and stable and reliable detonation power. This ensures the stable detonation of external industrial explosives and guarantees a high success rate for blasting operations. However, if localized weak deflagration or insufficient detonation impact occurs in the detonation zone, the second spring returns to its original position, the reinforcing plate is sealed by the plug, and the plug further seals the ignition port, limiting the outward ejection of high-temperature and detonation fragments. This prevents the casing from being torn apart by localized deflagration and metal fragments from flying and injuring people, thus avoiding on-site safety hazards caused by misfires or residual explosions. 3. In this invention, external heat enters the casing through the heat inlet and is received by the thermal expansion ring. The thermal expansion ring expands due to the heat, and the thermal insulation sheet moves upward due to the vertical displacement caused by the thermal expansion ring. The contact ring connected to the support cylinder above the thermal insulation sheet moves upward, and the contact post fixedly connected to the bottom of the thermal insulation sheet moves upward. When the external temperature reaches 60 degrees Celsius, the contact ring moves upward and enters the hole in the circuit board that is slidably connected to the T-shaped sleeve. There are contacts in this hole that are electrically connected to the contact ring. After the contact ring enters the hole and is electrically connected to the circuit board through the contacts, the circuit board transmits this signal to the detonator through the warning line and lead wire to remind the workers. At this time, the detonation operation is not affected. On the one hand, the blasting operation can still be completed in a slightly high temperature environment, so as not to stop work and affect the construction progress. On the other hand, this can issue a warning signal on the detonator in a timely manner, so that it is not easy to be overlooked due to the temperature displayed in real time on the detonator by the temperature sensor, thus playing a strong reminder role. 4. In this invention, when the ambient temperature reaches 80 degrees Celsius, the contact post moves upward and just moves out of the contact flashlight. At this time, the detonation circuit is broken, the ignition rod is disconnected and difficult to ignite. There is a displacement contact at the bottom of the contact ring. At this time, the displacement contact at the bottom of the contact ring just touches the contact on the circuit board and is electrically connected. At this time, the detonator receives a high temperature prohibition signal so that the staff can deal with it in time. 5. This invention establishes a gradient safety protection mechanism by setting up two levels of temperature-grade protection: a 60-degree warning and a forced disconnection of the detonation circuit at 80 degrees. At 80 degrees, it simultaneously performs the dual actions of physically disconnecting the detonation circuit and transmitting a high-temperature lockout signal, blocking the ignition path of the ignition rod from the source of the circuit, eliminating the risk of spontaneous combustion and explosion of this electronic detonator under high-temperature conditions, and at the same time pushing a prohibition operation command to the detonator, providing a double reminder to the operator to stop using the detonator, thus greatly improving the level of safety protection. It achieves passive circuit breaking by separating the terminal and the flashlight, requiring no power supply to maintain the lockout state, and the high-temperature self-locking function remains effective during storage and transportation. 6. This invention, through the design of annular guide plates and limiting rings, can constrain and guide the thermal expansion ring, so that when it expands due to heat, the lateral expansion is converted into longitudinal height increase displacement. The design of both the annular guide plates and limiting rings as ceramic materials can better constrain the height increase of the thermal expansion ring, and can better transfer external heat. It can also prevent the thermal expansion ring from expanding laterally and causing lateral displacement and jamming when the thermal expansion ring retracts as the temperature decreases. At the same time, the ceramic material can withstand high temperatures, does not rust, has low frictional resistance, and will not deform under long-term high and low temperatures, making it highly practical. 7. In this invention, a limiting ring is fixedly connected to the upper outer side of the thermal expansion ring, and the middle and lower ends of the thermal expansion ring are fitted and slidably connected to the limiting ring, so that the limiting ring can rise synchronously when the thermal expansion ring expands and increases in height. 8. In this invention, the rise of the limiting ring causes the guide strip fixedly connected to it to move upward. The guide strip can guide the thermal expansion ring during the process of thermal expansion and cooling and shrinkage, so as to prevent it from deviating and tilting. 9. The present invention, through the design of a temperature sensor on the guide bar, can measure the temperature in the area of ​​the electronic detonator in real time after the detonator is powered on, and can directly contact the heat of the external environment, so that the temperature measurement data is more accurate and real-time, so that the staff can monitor the temperature in real time throughout the power-on process. 10. In this invention, the thermal expansion ring expands and increases in temperature when heated, and then contracts back after the temperature drops. The design of the solid marking material on the side wall of the guide strip allows the solid color marking material on the guide strip to move up and down as it follows the thermal expansion ring, thereby marking the side wall of the heating hole. By comparing the 60-degree and 80-degree markings on the side wall of the heating hole, the maximum temperature that the electronic detonator has experienced under non-energized conditions such as storage and transportation can be observed. At the same time, by observing the color depth of the solid color material applied to each area on the side wall of the heating hole, the frequency of the reciprocating fluctuation of the electronic detonator within a certain temperature range can be determined. In this way, even under non-energized conditions, products with aging or safety hazards during storage and transportation can be screened. 11. The present invention, through the design of the support ring and the first spring, enables the heat insulation sheet to always be in close contact with the thermal expansion ring, so that the heat insulation sheet can sensitively follow the movement after the thermal expansion ring expands due to heat. 12. The present invention, through the design of the support cylinder, can protect the internal connecting wires and wires on the one hand, and can cooperate with the T-shaped sleeve to move up and down, preventing the T-shaped sleeve from being unable to return to the hole in the circuit board after the temperature drops after it extends out of the circuit board. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is an overall sectional view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a partial cross-sectional view of the support cylinder of the present invention; Figure 5 This is a cross-sectional view of the reinforcing cap of the present invention; Figure 6 This is a partial cross-sectional view of the casing of the present invention; Figure 7 This is a cross-sectional view of the reinforcing cap of the present invention; Figure 8 For the present invention Figure 6 A partial sectional view at point A in the middle; Figure 9For the present invention Figure 3 A partial sectional view at point B in the middle.

[0017] In the picture: 1. Shell; 11. Control Zone; 12. Temperature Control Zone; 13. Detonation Zone; 14. Pins; 15. Circuit Board; 16. Reinforcing Cap; 17. Reinforcing Assembly; 18. Lead Wire; 2. Insulating Heat-resistant Board; 21. Flashlight Connector; 22. Ignition Rod; 23. Electricity Connector; 24. Electric Wire Connector; 25. T-Sleeve; 26. Detonation Wire; 27. Thermal Expansion Ring; 28. Heat Insulation Sheet; 3. Support Ring; 31. First Spring; 4. Annular Hole; 41. Annular Guide Plate; 5. Support Cylinder; 6. Communication Line; 61. Warning Line; 62. Connecting Wire; 63. Electricity Connector Ring; 7. Heat Inlet Hole; 8. Guide Strip; 9. Temperature Sensor; 91. 60-degree Line; 92. 80-degree Line; 100. Reinforcing Sheet; 101. Second Spring; 102. Exit Hole; 103. Hole Plug. Detailed Implementation

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

[0019] Please see Figures 1 to 9 The present invention provides a technical solution: An electronic detonator with real-time temperature measurement function includes a shell 1. Inside the shell 1, from top to bottom, are a control zone 11, a temperature control zone 12, and an initiation zone 13. A lead wire 18 extends through and is fixedly installed at the upper end of the shell 1. One side of the lead wire 18 is electrically connected to an initiator. An initiation assembly is disposed inside the shell 1. A temperature control assembly is disposed on the initiation assembly and is located within the temperature control zone 12. A pin 14 is fixedly installed within the control zone 11. A circuit board 15 is fixedly connected to the pin 14. A reinforcing cap 16 is movably connected to the bottom of the shell 1, and a reinforcing assembly 17 is disposed on the reinforcing cap 16.

[0020] As an embodiment of the present invention, as shown in the figure, the detonation assembly includes an insulating heat-resistant plate 2, which is fixedly connected within a temperature control zone 12. A flashlight 21 is embedded and fixedly installed at the center of the upper surface of the insulating heat-resistant plate 2. An ignition rod 22 is fixedly installed at the bottom of the insulating heat-resistant plate 2. The ignition rod 22 and the flashlight 21 are electrically connected. A power receiving post 23 extends into and is electrically connected to the flashlight 21. A power receiving wire 24 is electrically connected to the upper end of the power receiving post 23. The upper end of the power receiving wire 24 extends through and outwards... A T-shaped sleeve 25 is fixedly connected, the T-shaped sleeve 25 extends through and slides into the circuit board 15, and is electrically connected to the circuit board 15. One end of the connecting wire 24 extending out of the T-shaped sleeve 25 is electrically connected to the detonating wire 26, and the detonating wire 26 is electrically connected to the lead wire 18. The temperature control component includes a thermal expansion ring 27, which is attached to the upper surface of the insulating heat-resistant plate 2. A heat-insulating insulating sheet 28 is attached to the upper end of the thermal expansion ring 27, and the connecting post 23 extends through and is fixedly connected to the heat-insulating insulating sheet 28.

[0021] During operation, a limiting ring is fixedly connected to the upper outer side of the thermal expansion ring 27. The design of the middle and lower ends of the thermal expansion ring 27 being in close contact with the limiting ring and being slidably connected allows the limiting ring to rise synchronously when the thermal expansion ring 27 expands and increases in height.

[0022] As an embodiment of the present invention, as shown in the figure, a support ring 3 is fixedly installed in the temperature control zone 12. A plurality of first springs 31 are fixedly connected at equal intervals in a ring shape at the bottom of the support ring 3. The lower end of the first springs 31 is fixedly connected to the heat insulation sheet 28.

[0023] During operation, the design of the support ring 3 and the first spring 31 ensures that the heat insulation sheet 28 can always be in close contact with the thermal expansion ring 27, so that the heat insulation sheet 28 can sensitively follow the movement after the thermal expansion ring 27 expands due to heat.

[0024] As an embodiment of the present invention, as shown in the figure, the insulating heat-resistant plate 2 has an annular hole 4, and an annular guide plate 41 extends through and is slidably connected to the annular hole 4. One end of the annular guide plate 41 extending out of the annular hole 4 is attached to the inner side of the thermal expansion ring 27. A limiting ring is fixedly connected to the upper outer side of the thermal expansion ring 27. The middle and lower ends of the thermal expansion ring 27 are attached to and slidably connected to the limiting ring. Both the annular guide plate 41 and the limiting ring are made of ceramic material.

[0025] During operation, the design of the annular guide plate 41 and the limiting ring can constrain and guide the thermal expansion ring 27, so that when it expands due to heat, the lateral expansion is converted into longitudinal height increase displacement. The design of the annular guide plate 41 and the limiting ring is made of ceramic, which can better constrain the height increase of the thermal expansion ring 27 and can better transfer external heat. It can also prevent the thermal expansion ring 27 from expanding laterally and causing lateral displacement and jamming when the thermal expansion ring 27 retracts when the temperature decreases. At the same time, the ceramic material can withstand high temperature, does not rust, has low frictional resistance, and will not deform under long-term high and low temperature conditions, making it highly practical.

[0026] As an embodiment of the present invention, as shown in the figure, a support cylinder 5 is fixedly connected to the upper end of the power connection post 23. The support cylinder 5 is made of insulating and heat-resistant material. The upper end of the support cylinder 5 is fixedly connected to the bottom of the T-shaped sleeve 25. The power connection wire 24 is located inside the T-shaped sleeve 25.

[0027] During operation, the design of the support cylinder 5 can protect the internal connecting wires 24 and 62, and can also move up and down with the T-shaped sleeve 25 to prevent the T-shaped sleeve 25 from being unable to return to the hole in the circuit board 15 after the temperature drops after it extends out of the circuit board 15.

[0028] As an embodiment of the present invention, as shown in the figure, a communication line 6 is electrically connected to the circuit board 15. The communication line 6 is electrically connected to the lead wire 18. The lead wire 18 is electrically connected to a warning line 61. One end of the warning line 61 extends into the T-shaped sleeve 25 and is electrically connected to a connecting wire 62. The connecting wire 62 is electrically connected to a contact ring 63. The contact ring 63 is embedded and fixedly connected to the inner wall of the support cylinder 5.

[0029] The outer wall of the tube shell 1 is provided with heat inlet holes 7 in an annular shape at equal intervals, and the heat inlet holes 7 are provided corresponding to the thermal expansion ring 27.

[0030] During operation, external heat enters the casing 1 through the heat inlet 7 and is received by the thermal expansion ring 27. The thermal expansion ring 27 expands due to heat, causing the thermal insulation sheet 28 to move upwards due to the vertical displacement caused by the thermal expansion ring 27. The contact ring 63 connected to the support cylinder 5 above the thermal insulation sheet 28 moves upwards, and the contact post 23 fixedly connected to the bottom of the thermal insulation sheet 28 moves upwards. When the external temperature reaches 60 degrees Celsius, the contact ring 63 moves upwards and enters the hole in the circuit board 15 that is slidably connected to the T-shaped sleeve 25. This hole contains the contact ring 63. After the contact ring 63 enters the hole and is electrically connected to the circuit board 15 through the contact, the circuit board 15 transmits this signal to the detonator through the warning line 61 and the lead wire 18 to remind the workers. At this time, the detonation operation is not affected. On the one hand, the blasting operation can still be completed in a slightly high temperature environment, so as not to stop work and affect the construction progress. On the other hand, this can issue a warning signal on the detonator in a timely manner, so that it is not easy to be overlooked due to the temperature transmitted by the temperature sensor 9 to the detonator in real time, thus playing a strong reminder role. When the outside temperature reaches 80 degrees, the connecting rod 23 moves upward and just moves out of the connecting flashlight 21. At this time, the detonation circuit is broken, the ignition rod 22 is disconnected and difficult to ignite. There is a displacement contact at the bottom of the connecting ring 63. At this time, the displacement contact at the bottom of the connecting ring 63 just touches the contact on the circuit board 15 and is electrically connected. At this time, the detonator receives a high temperature prohibition signal so that the staff can deal with it in time. In summary, this invention features a two-level temperature-graded protection system: a 60-degree warning and a forced disconnection of the detonation circuit at 80 degrees Celsius, forming a gradient safety protection mechanism. At 80 degrees Celsius, the invention simultaneously performs a physical disconnection of the detonation circuit and uploads a high-temperature locking signal, blocking the ignition path of the ignition rod 22 from the source of the circuit and eliminating the risk of spontaneous combustion and explosion of the electronic detonator under high-temperature conditions. At the same time, it sends a prohibition instruction to the detonator, providing a double reminder to the operator to stop using the detonator, significantly improving the safety protection level. The invention achieves passive circuit breaking by separating the terminal 23 from the ignition lamp 21, requiring no power supply to maintain the locking state, and the high-temperature self-locking function remains effective during storage and transportation.

[0031] As an embodiment of the present invention, as shown in the figure, a guide strip 8 extends through and is slidably connected to the heat inlet hole 7, and the guide strip 8 is fixedly connected to the bottom of the outer wall of the limiting ring outside the thermal expansion ring 27.

[0032] During operation, the limit ring rises, causing the guide bar 8, which is fixedly connected to it, to move upward. The guide bar 8 can guide the thermal expansion ring 27 during the process of thermal expansion and cooling and shrinkage, so as to prevent it from deviating or tilting.

[0033] As an embodiment of the present invention, as shown in the figure, a temperature sensor 9 is fixedly connected to the guide strip 8. The temperature sensor 9 is electrically connected to the lead wire 18. A 60-degree line 91 is fixedly connected to one side wall of the heat inlet hole 7. An 80-degree line 92 is provided on the 60-degree line 91. The 80-degree line 92 is fixedly connected inside the heat inlet hole 7. A colored wax is provided on one side of the guide strip 8. The colored wax corresponds to the side wall of the heat inlet hole 7 where the 60-degree line 91 is located.

[0034] During operation, the temperature sensor 9 on the guide bar 8 is designed to measure the temperature in the area of ​​the electronic detonator in real time after the detonator is powered on, and can directly contact the heat of the external environment, so that the temperature measurement data is more accurate and real-time, so that the staff can monitor the temperature in real time throughout the power-on process. The thermal expansion ring 27 expands and increases in temperature when heated, and then contracts back after the temperature drops. The solid marking material on the side wall of the guide strip 8 is designed so that as the guide strip 8 moves up and down following the thermal expansion ring 27, the solid color marking material on it moves up and down, thereby marking the side wall of the heating hole 7. By comparing the 60-degree line 91 and 80-degree line 92 markings on the side wall of the heating hole 7, the maximum temperature that the electronic detonator has experienced under non-energized conditions such as storage and transportation can be observed. At the same time, by observing the color depth of the solid color material applied to different areas on the side wall of the heating hole 7, the frequency of the cyclical fluctuation of the electronic detonator within a certain temperature range can be determined. In this way, even under non-energized conditions, products with aging or safety hazards during storage and transportation can be screened.

[0035] As an embodiment of the present invention, as shown in the figure, the reinforcing component 17 includes two corresponding reinforcing plates 100, a second spring 101 is fixedly connected between the two reinforcing plates 100, and corresponding flare holes 102 are opened on the two reinforcing plates 100. One reinforcing plate 100 is embedded and fixedly connected to the reinforcing cap 16, and a plug 103 is inserted into the flare hole 102 on the other reinforcing plate 100. The plug 103 is fixedly connected in the detonation zone 13.

[0036] During operation, explosives are placed in the detonation zone 13. When detonated, the detonator transmits current to the ignition rod 22 in sequence through the lead wire 18, detonation wire 26, connecting wire 24 to the electric post 23, and connecting flashlight 21. The ignition rod 22 emits an electric spark, igniting the explosives in the detonation zone 13. After the explosives in the detonation zone 13 are ignited, a large impact force is generated and impacts the reinforcing plate 100, causing the reinforcing plate 100 to move under pressure. The ignition hole 102 on the reinforcing plate 100 moves under pressure and moves away from the plug 103. At this time, the ignition hole 102 is opened, and the explosives in the detonation zone 13 explode and rush out of the ignition hole 102, thereby detonating the explosives outside the electronic detonator to complete the blasting operation. When not detonated, the plug 103 is inserted into the ignition hole 102, and under the elastic force of the second spring 101, the ignition hole 102 on the reinforcing plate 100 is always blocked and sealed by the plug 103. Thus, during transportation, storage, and handling, even if the electronic detonator is subjected to bumps, compression, or impacts, the elastic force of the second spring 101 can compensate for slight displacement of the reinforcing plate 100, ensuring a tight fit between the plug 103 and the ignition hole 102. This prevents the explosive powder and agents inside the detonation zone 13 from leaking out of the channel, avoiding the risk of spontaneous combustion and deflagration caused by explosive leakage, thereby improving the safety performance of the electronic detonator during storage and transportation. During detonation, the energy generated by the detonation of the explosives in the detonation zone 13 is concentrated and ejected through the ignition hole 102, resulting in low energy loss and stable and reliable detonation power. This ensures the stable detonation of external industrial explosives and guarantees the success rate of blasting operations. However, when the detonation zone 13 experiences localized weak deflagration or insufficient detonation impact, the second spring 101 returns to its original position, and the reinforcing plate 100 is sealed by the hole plug 103. The hole plug 103 then seals the ignition hole 102 again, limiting the outward ejection of high temperature and detonation fragments. This prevents the casing 1 from being torn apart by localized deflagration and metal fragments from flying and injuring people, thus avoiding on-site safety hazards caused by duds and residual explosions. Furthermore, the plug 103 is made of a fusible material with a suitable melting point. This way, the plug 103 is directly melted during detonation, and the firepower coming out of the ignition hole 102 is greater, thus achieving a better detonation effect.

[0037] Working principle: During operation, the detonator is electrically connected to the electronic detonator through lead wire 18. To detonate, simply press the detonation button on the detonator. Explosives are placed in the detonation zone 13. During detonation, the detonator transmits current to the ignition rod 22 in sequence through the lead wire 18, detonation wire 26, connecting wire 24 to the electric post 23, and connecting flashlight 21. The ignition rod 22 emits an electric spark, igniting the explosives in the detonation zone 13. After the explosives in the detonation zone 13 are ignited, a large impact force is generated and impacts the reinforcing plate 100, causing the reinforcing plate 100 to move under pressure. The ignition hole 102 on the reinforcing plate 100 moves under pressure and moves away from the hole plug 103. At this time, the ignition hole 102 is opened, and the explosives in the detonation zone 13 explode and rush out of the ignition hole 102, thereby detonating the explosives outside the electronic detonator to complete the blasting operation. When not detonated, the plug 103 is inserted into the ignition hole 102, and under the elastic force of the second spring 101, the ignition hole 102 on the reinforcing plate 100 is always blocked and sealed by the plug 103. Thus, during transportation, storage, and handling, even if the electronic detonator is subjected to bumps, compression, or impacts, the elastic force of the second spring 101 can compensate for slight displacement of the reinforcing plate 100, ensuring a tight fit between the plug 103 and the ignition hole 102. This prevents the explosive powder and agents inside the detonation zone 13 from leaking out of the channel, avoiding the risk of spontaneous combustion and deflagration caused by explosive leakage, thereby improving the safety performance of the electronic detonator during storage and transportation. During detonation, the energy generated by the detonation of the explosives in the detonation zone 13 is concentrated and ejected through the ignition hole 102, resulting in low energy loss and stable and reliable detonation power. This ensures the stable detonation of external industrial explosives and guarantees the success rate of blasting operations. However, when the detonation zone 13 experiences localized weak deflagration or insufficient detonation impact, the second spring 101 returns to its original position, and the reinforcing plate 100 is sealed by the hole plug 103. The hole plug 103 then seals the ignition hole 102 again, limiting the outward ejection of high temperature and detonation fragments. This prevents the casing 1 from being torn apart by localized deflagration and metal fragments from flying and injuring people, thus avoiding on-site safety hazards caused by duds and residual explosions. Furthermore, the plug 103 is made of a fusible material with a suitable melting point. This way, the plug 103 is directly melted during detonation, and the firepower coming out of the ignition hole 102 is greater, so as to achieve a better detonation effect. External heat enters the casing 1 through the heat inlet 7 and is received by the thermal expansion ring 27. The thermal expansion ring 27 expands due to the heat, causing the thermal insulation sheet 28 to move upwards due to the vertical displacement caused by the thermal expansion ring 27. The contact ring 63 connected to the support cylinder 5 above the thermal insulation sheet 28 moves upwards, and the contact post 23 fixedly connected to the bottom of the thermal insulation sheet 28 moves upwards. When the external temperature reaches 60 degrees Celsius, the upward movement of the contact ring 63 just causes it to enter the hole in the circuit board 15 that is slidably connected to the T-shaped sleeve 25. This hole contains electrical components connected to the contact ring 63. After the contact ring 63 enters the hole and is electrically connected to the circuit board 15 through the contact, the circuit board 15 transmits this signal to the detonator through the warning line 61 and the lead wire 18 to remind the staff. At this time, the detonation operation is not affected. On the one hand, the blasting operation can still be completed in a slightly high temperature environment, so as not to stop work and affect the construction progress. On the other hand, this can issue a warning signal on the detonator in a timely manner, so that it is not easy to be overlooked due to the temperature transmitted by the temperature sensor 9 to the detonator in real time, thus playing a strong reminder role. When the outside temperature reaches 80 degrees, the connecting rod 23 moves upward and just moves out of the connecting flashlight 21. At this time, the detonation circuit is broken, the ignition rod 22 is disconnected and difficult to ignite. There is a displacement contact at the bottom of the connecting ring 63. At this time, the displacement contact at the bottom of the connecting ring 63 just touches the contact on the circuit board 15 and is electrically connected. At this time, the detonator receives a high temperature prohibition signal so that the staff can deal with it in time. In summary, this invention features a two-level temperature-graded protection system: a 60-degree warning and a forced disconnection of the detonation circuit at 80 degrees, forming a gradient safety protection mechanism. At 80 degrees, it simultaneously performs a dual action of physically disconnecting the detonation circuit and transmitting a high-temperature lockout signal, blocking the ignition path of the ignition rod 22 from the source of the circuit, eliminating the risk of spontaneous combustion and explosion of this electronic detonator under high-temperature conditions. At the same time, it pushes a prohibition instruction to the detonator, providing a double reminder to the operator to stop using the detonator, significantly improving the safety protection level. It achieves passive circuit breaking by separating the terminal 23 from the flashlight 21, requiring no power supply to maintain the lockout state, and the high-temperature self-locking function remains effective during storage and transportation. The design of the annular guide plate 41 and the limiting ring can constrain and guide the thermal expansion ring 27, so that when it expands due to heat, the lateral expansion is converted into longitudinal height increase displacement. The design of the annular guide plate 41 and the limiting ring is made of ceramic material, which can better constrain the height increase of the thermal expansion ring 27 and can better transfer external heat. It can also prevent the thermal expansion ring 27 from expanding laterally and from lateral displacement and jamming when the thermal expansion ring 27 retracts when the temperature drops. At the same time, the ceramic material can withstand high temperature, does not rust, has low frictional resistance, and will not deform under long-term high and low temperature conditions, making it highly practical. A limiting ring is fixedly connected to the upper outer side of the thermal expansion ring 27. The design of the middle and lower ends of the thermal expansion ring 27 being in close contact with the limiting ring and being slidably connected allows the limiting ring to rise synchronously when the thermal expansion ring 27 expands and increases in height. The rise of the limiting ring causes the guide bar 8, which is fixedly connected to it, to move upward. The guide bar 8 can guide the thermal expansion ring 27 during the process of thermal expansion and cooling and shrinkage, so as to prevent it from deviating or tilting. The design of the temperature sensor 9 on the guide bar 8 enables real-time temperature measurement of the area of ​​the electronic detonator after the detonator is powered on, and it can directly contact the heat of the external environment, making the temperature measurement data more accurate and real-time, so that the staff can monitor the temperature in real time throughout the power-on process. The thermal expansion ring 27 expands and increases in temperature when heated, and then contracts back after the temperature drops. The solid marking material on the side wall of the guide strip 8 is designed so that as the guide strip 8 moves up and down with the thermal expansion ring 27, the solid color marking material on it moves up and down, thereby marking the side wall of the heating hole 7. By comparing the 60-degree line 91 and 80-degree line 92 markings on the side wall of the heating hole 7, the maximum temperature that the electronic detonator has been subjected to in the unpowered state such as storage and transportation can be observed. At the same time, by observing the color depth of the solid color material applied to each area on the side wall of the heating hole 7, the frequency of the cyclical fluctuation of the electronic detonator within a certain temperature range can be determined. In this way, even in the unpowered environment, products with aging or safety hazards in the storage and transportation of the electronic detonator can be screened. The design of the support ring 3 and the first spring 31 ensures that the heat insulation sheet 28 can always be in close contact with the thermal expansion ring 27, so that the heat insulation sheet 28 can sensitively follow the movement after the thermal expansion ring 27 expands due to heat. The design of the support cylinder 5 can protect the internal connecting wires 24 and 62, and can also move up and down with the T-shaped sleeve 25 to prevent the T-shaped sleeve 25 from being unable to return to the hole in the circuit board 15 after the temperature drops after it extends out of the circuit board 15. In summary, this invention has the functions of initiation, graded temperature control, temperature measurement and traceability, and storage and transportation sealing. The initiator is energized through the lead wire 18, and the current conducts to the ignition rod 22 to ignite the explosive in the initiation zone 13. The detonation force compresses the second spring 101 to open the ignition hole 102 and release energy. Under normal conditions, the second spring 101 presses the plug 103 to seal the ignition hole 102 to prevent explosive leakage. In case of abnormal deflagration, the protective shell 1 is automatically sealed. Heat is applied to the thermal expansion ring 27 through the heat inlet hole 7, which drives the heat insulation sheet 28 to rise and fall, forming a two-level protection: when the outside temperature is 60 degrees, the connection ring 63 is connected to the upper part of the ring. The warning signal does not interrupt the detonation. When the outside temperature is 80 degrees, the terminal 23 disconnects from the terminal 21 and is forcibly disconnected and locked. The ceramic annular guide plate 41 and the limiting ring constrain the vertical expansion ring 27. The guide strip 8 is equipped with a temperature sensor 9 for real-time temperature measurement. The solid color marking material, together with the 60-degree line 91 and the 80-degree line 92, can passively trace the source of the heat recording. The support ring 3 and the first spring 31 ensure sensitive temperature control. The support cylinder 5 protects the circuit and limits the T-shaped sleeve 25 to realize automatic circuit reset. Multiple protections greatly improve the safety of the entire process of storage, transportation and blasting of this electronic detonator.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic detonator with real-time temperature measurement function, comprising a tube shell (1), characterized in that: The tube shell (1) contains, from top to bottom, a control area (11), a temperature control area (12), and an initiation area (13). A lead wire (18) is inserted through and fixedly installed at the upper end of the tube shell (1). An initiator is electrically connected to one side of the lead wire (18). An initiation assembly is provided inside the tube shell (1). A temperature control assembly is provided on the initiation assembly. The temperature control assembly is located in the temperature control area (12). A pin (14) is fixedly installed inside the control area (11). A circuit board (15) is fixedly connected to the pin (14). A reinforcing cap (16) is movably connected to the bottom of the tube shell (1). A reinforcing assembly (17) is provided on the reinforcing cap (16).

2. The electronic detonator with real-time temperature measurement function according to claim 1, characterized in that: The detonation assembly includes an insulating heat-resistant plate (2), which is fixedly connected within the temperature control zone (12). A flashlight (21) is embedded and fixedly installed at the center of the upper surface of the insulating heat-resistant plate (2). An ignition rod (22) is fixedly installed at the bottom of the insulating heat-resistant plate (2). The ignition rod (22) and the flashlight (21) are electrically connected. A power connection post (23) is inserted into and slidably connected to the flashlight (21). A power connection wire (24) is electrically connected to the upper end of the power connection post (23). A T-shaped sleeve (2) extends through and is fixedly connected to the upper end of the power connection wire (24). 5) The T-shaped sleeve (25) extends through the circuit board (15) and is slidably connected to the circuit board (15). The end of the connecting wire (24) extending out of the T-shaped sleeve (25) is electrically connected to the detonating wire (26). The detonating wire (26) is electrically connected to the lead wire (18). The temperature control component includes a thermal expansion ring (27). The thermal expansion ring (27) is attached to the upper surface of the insulating heat-resistant plate (2). The upper end of the thermal expansion ring (27) is attached to a heat-insulating sheet (28). The connecting post (23) extends through the heat-insulating sheet (28) and is fixedly connected to the heat-insulating sheet (28).

3. An electronic detonator with real-time temperature measurement function according to claim 2, characterized in that: A support ring (3) is fixedly installed in the temperature control zone (12). Multiple first springs (31) are fixedly connected at equal intervals in a ring shape at the bottom of the support ring (3). The lower end of the first spring (31) is fixedly connected to the heat insulation sheet (28).

4. An electronic detonator with real-time temperature measurement function according to claim 3, characterized in that: The insulating heat-resistant plate (2) has an annular hole (4), and an annular guide plate (41) extends through and is slidably connected to the annular hole (4). One end of the annular guide plate (41) extending out of the annular hole (4) is attached to the inner side of the thermal expansion ring (27). A limiting ring is fixedly connected to the upper outer side of the thermal expansion ring (27). The middle and lower ends of the thermal expansion ring (27) are attached to and slidably connected to the limiting ring. The annular guide plate (41) and the limiting ring are both made of ceramic material.

5. An electronic detonator with real-time temperature measurement function according to claim 4, characterized in that: The upper end of the power connection post (23) is fixedly connected to a support cylinder (5), which is made of insulating and heat-resistant material. The upper end of the support cylinder (5) is fixedly connected to the bottom of the T-shaped sleeve (25), and the power connection wire (24) is located inside the T-shaped sleeve (25).

6. An electronic detonator with real-time temperature measurement function according to claim 5, characterized in that: The circuit board (15) is electrically connected to a communication line (6), which is electrically connected to a lead wire (18). The lead wire (18) is electrically connected to a warning line (61). One end of the warning line (61) extends into the T-shaped sleeve (25) and is electrically connected to a connecting wire (62). The connecting wire (62) is electrically connected to a contact ring (63), which is embedded and fixedly connected to the inner wall of the support cylinder (5).

7. An electronic detonator with real-time temperature measurement function according to claim 6, characterized in that: The outer wall of the tube shell (1) is provided with heat inlet holes (7) in an annular pattern at equal intervals, and the heat inlet holes (7) are provided corresponding to the thermal expansion ring (27).

8. An electronic detonator with real-time temperature measurement function according to claim 7, characterized in that: A guide strip (8) extends through and is slidably connected to the heat inlet hole (7). The guide strip (8) is fixedly connected to the bottom of the outer wall of the limiting ring outside the thermal expansion ring (27).

9. An electronic detonator with real-time temperature measurement function according to claim 8, characterized in that: A temperature sensor (9) is fixedly connected to the guide strip (8). The temperature sensor (9) is electrically connected to the lead wire (18). A 60-degree line (91) is fixedly connected to one side wall of the heat inlet hole (7). An 80-degree line (92) is provided on the 60-degree line (91). The 80-degree line (92) is fixedly connected inside the heat inlet hole (7). A colored wax is provided on one side of the guide strip (8). The colored wax corresponds to the side wall of the heat inlet hole (7) where the 60-degree line (91) is located.

10. An electronic detonator with real-time temperature measurement function according to claim 9, characterized in that: The reinforcing component (17) includes two corresponding reinforcing plates (100), a second spring (101) is fixedly connected between the two reinforcing plates (100), and corresponding flare holes (102) are opened on the two reinforcing plates (100). One reinforcing plate (100) is embedded and fixedly connected to the reinforcing cap (16), and a plug (103) is inserted into the flare hole (102) on the other reinforcing plate (100). The plug (103) is fixedly connected in the detonation zone (13).

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