CN212340079U - Magnetoelectric detonator detonating circuit - Google Patents
Magnetoelectric detonator detonating circuit Download PDFInfo
- Publication number
- CN212340079U CN212340079U CN201922465371.8U CN201922465371U CN212340079U CN 212340079 U CN212340079 U CN 212340079U CN 201922465371 U CN201922465371 U CN 201922465371U CN 212340079 U CN212340079 U CN 212340079U
- Authority
- CN
- China
- Prior art keywords
- circuit
- frequency
- magnetoelectric
- detonation
- magnetoelectric detonator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Bags (AREA)
Abstract
The utility model discloses a magnetoelectric detonator priming circuit, which comprises a direct current power supply, an energy storage capacitor, a charge-discharge control circuit, a switch circuit and an output circuit; the power supply voltage is increased to a detonation voltage value through a transformer, the energy storage capacitor is charged, and when the detonation threshold voltage is reached, the switching circuit controls the high-frequency on-off of the power switching tube to generate high-frequency rectangular waves for detonation of the magnetoelectric detonator; and (3) transferring the initiation energy to a bridge wire of the magnetoelectric detonator by utilizing a magnetoelectric coupling principle to initiate the magnetoelectric detonator. The utility model discloses can use low voltage DC power supply to do the power of initiating circuit, the convenience does not have the place work that the alternating current provided such as field. The utility model discloses can become high frequency pulse voltage with DC voltage, accessible adjustment control parameter adjustment output detonation current's frequency, the frequency control scope is big and need not change the hardware, is convenient for carry out the output frequency adjustment to the magnetoelectric detonator of different frequency-selecting characteristics.
Description
Technical Field
The utility model relates to a control technical field that detonates relates to a magnetoelectric detonator detonating circuit particularly.
Background
The magnetoelectric detonator is an electric detonator which is detonated by a specific alternating current signal and has a frequency-selecting detonation function. Has good stray current resistance, industrial frequency resistance and antistatic capability. The difference from the common electric detonator is that two leg wires of the electric detonator are respectively connected with two ends of a coil on the annular magnetic core magnetic ring. Due to the structural characteristics of the magnetoelectric detonator, the bridge wire is always in a short circuit state, the magnetoelectric detonator generates a magnetic field through the change of electric pulses in the detonating bus, and generates current with enough strength through the action of the magnetic ring to ignite the bridge wire of the magnetoelectric detonator, so that the magnetoelectric detonator is detonated.
According to the characteristics of the magnetic ring, the primary coil and the secondary coil, each type of magnetoelectric detonator has unique frequency selection characteristics. The existing magnetoelectric detonator priming instrument is only used for controlling the output of single frequency and does not control the frequency. The electromagnetic detonator is generally manufactured according to the detonation frequency of the electromagnetic detonator, and can only detonate the electromagnetic detonator with single frequency.
The prior magnetoelectric detonator explosion initiating instrument adopts alternating current as a driving power supply for explosion. The specific high-frequency alternating-current detonation current is generated by using the RC oscillation circuit, the detonation current flows through the detonation bus and the primary coil of the magnetoelectric detonator, and the detonation current is generated on a bridge wire loop of the magnetoelectric detonator through electromagnetic induction to detonate the magnetoelectric detonator.
The mode that an RC oscillating circuit is used for generating high-frequency alternating current detonation current is utilized, the output frequency of the RC oscillating circuit is determined by the oscillating circuit, and when the output frequency is changed, components of the oscillating circuit need to be replaced, so that the detonation requirements of magnetoelectric detonators with different frequency characteristics cannot be met; in addition, the requirement of field use cannot be met by adopting alternating current power supply.
SUMMERY OF THE UTILITY MODEL
To the problem, an object of the utility model is to provide a magnetoelectric detonator priming circuit to solve among the prior art the problem of the normal detonation of place work that no alternating current provided such as field, can not adapt to the problem of different priming energy demands.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the magnetoelectric detonator initiation circuit is characterized by comprising
The direct current power supply provides electric energy for the whole circuit;
the energy storage capacitor is used for storing electric energy for detonation of the magnetoelectric detonator;
the charging and discharging control circuit comprises a transformer and a full-bridge rectifying circuit, the charging and discharging control circuit boosts the power supply voltage by receiving the instruction of the control unit, and the energy storage capacitor is charged through the full-bridge rectifying circuit; the charge and discharge control circuit discharges the energy storage capacitor by receiving an instruction of the control unit;
the switch circuit comprises a power switch tube and a PWM wave for controlling the high-frequency on-off of the power switch tube, the power switch tube is connected with the relay, the switch circuit is communicated, and the PWM wave controls the high-frequency on-off of the power switch tube to generate a high-frequency rectangular wave for the detonation of the magnetoelectric detonator;
the output circuit is connected with a detonation bus of the magnetoelectric detonator;
the charging and discharging control circuit and the switch circuit are respectively connected with the control unit, the energy storage capacitor is electrically connected with the charging and discharging control circuit, the energy storage capacitor is electrically connected with the switch circuit through the charging and discharging control circuit, and the output circuit is connected with the switch circuit.
In the preferred embodiment of the present invention, the charge and discharge control circuit further includes a first PWM wave generating circuit, and the first PWM wave generating circuit outputs two complementary PWM waves to raise the dc power supply to the detonation voltage value through the transformer.
In the preferred embodiment of the present invention, the switch circuit further includes a second PWM wave generating circuit, and the second PWM wave generating circuit outputs the PWM wave.
The utility model discloses a preferred embodiment, switch circuit still includes AD detection, relay, through AD detection voltage value, when reaching required voltage, the relay is closed, and switch circuit intercommunication, the high frequency break-make of PWM ripples control power switch pipe.
In the preferred embodiment of the present invention, the full-bridge rectifier circuit is a full-bridge uncontrolled rectifier circuit.
In the preferred embodiment of the present invention, a power resistor is connected in series in the output circuit to limit the current output by the initiator.
The utility model adopts a push-pull type booster circuit topology, two paths of complementary PWM waves raise the power voltage to the detonation voltage value through a transformer, the energy storage capacitor is charged, and when the detonation threshold voltage is reached, the switching circuit controls the high-frequency on-off of a power switch tube to generate a high-frequency rectangular wave for the detonation of the magnetoelectric detonator; and (3) transferring the initiation energy to a bridge wire of the magnetoelectric detonator by utilizing a magnetoelectric coupling principle to initiate the magnetoelectric detonator.
The utility model discloses can use low voltage DC power supply to do the power of initiating circuit, the convenience does not have the place work that the alternating current provided such as field.
The utility model discloses can be through the charging voltage of control energy storage electric capacity, be convenient for adjust to the condition of different detonating energy demands.
The utility model discloses can become high frequency pulse voltage with DC voltage, accessible adjustment control parameter adjustment output detonation current's frequency, the frequency control scope is big and need not change the hardware, is convenient for carry out the output frequency adjustment to the magnetoelectric detonator of different frequency-selecting characteristics.
The utility model discloses concatenate current-limiting resistor in output circuit, avoid initiating a detonation return circuit electric current under the minimum condition of initiating a detonation return circuit resistance to excessively cause output circuit scaling loss.
The features of the present invention will be apparent from the accompanying drawings and from the detailed description of the preferred embodiments which follows.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a circuit diagram of the present invention.
Fig. 3 is a control circuit diagram of the control unit.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments and not all embodiments of the present application; and the structures shown in the drawings are merely schematic and do not represent actual objects. It should be noted that all other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present application.
It is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical or equivalent elements in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1 to 3, the magnetoelectric detonator priming circuit includes a dc power supply 1, a control unit 2, a charge and discharge control circuit 3, an energy storage capacitor 4, a switch circuit 5 and an output circuit 6, wherein the charge and discharge control circuit 3 and the switch circuit 5 are respectively connected with the control unit 2, the energy storage capacitor 4 is electrically connected with the charge and discharge control circuit, the energy storage capacitor 4 is electrically connected with the switch circuit 5 through the charge and discharge control circuit, and the output circuit 6 is connected with the switch circuit 5. These components are described below.
The DC power supply 1 can be a 5-24v DC power supply to provide electric energy for the whole circuit. According to the voltage requirements of different devices, required electric energy is provided for the charge and discharge control circuit, the control unit, the switch circuit and the like through different power modules. The direct current power supply can use a battery pack or a direct current power supply module meeting requirements. In this embodiment, the dc power supply is 12V.
And the control unit 2 controls the charging and discharging of the charging and discharging circuit according to a preset program, controls the on-off of the switching circuit according to the preset program, and outputs the PWM wave according to the preset. In the present embodiment, the control unit 2 is a single chip microcomputer. The control circuit of the control unit 2 is composed of a CPU and its peripheral circuits, and realizes the information transfer and control process with each module. As shown in fig. 3, the control circuit selects a CPU model according to the number of CPU pins that each functional module needs to occupy. The number of CPU pins required to be occupied by each module is as follows: AD sampling 5 pins, key input 4 pins, buzzer and LED lamp control 5 pins, serial communication 2 pins, and detonation control module 3 pins.
The charge/discharge control circuit 3 includes a first PWM wave generating circuit, a transformer T1, and a full-bridge non-controlled rectifying circuit 31. As shown in fig. 2, the full-bridge uncontrolled rectifying circuit 31 includes diodes D5, D6, D7 and D8, two output terminals of LR2905Z are connected to the primary side of a transformer T1, the primary side and the secondary side of a transformer T1 are connected to the input terminal of the rectifying circuit, and the output terminal of the rectifying circuit is connected in parallel with a capacitor C31 and a switch circuit; in this embodiment, the first PWM wave generating circuit is a control circuit of the control unit. By adopting a push-pull type booster circuit topology, the first PWM wave generating circuit outputs two paths of complementary PWM waves (PWM _1_1 and PWM _1_2), the direct-current power supply is boosted to the detonation voltage value through the transformer, and the energy storage capacitor is charged. By adopting a push-pull type booster circuit topology, a low-voltage direct-current power supply can be used as a power supply of the initiation circuit, and the work in the field and other places without alternating current supply is facilitated.
According to the instruction of the control unit 2, the charge-discharge control circuit 3 boosts the power supply voltage K _12V through the transformer T1, then charges the energy storage capacitor C31 through the full-bridge uncontrolled rectifying circuit 31, and adds the current-limiting control circuit in the boost conversion circuit, thereby effectively reducing the temperature of a switching device of the boost circuit, improving the reliability of the system and prolonging the service life of components. When the voltage of the energy storage capacitor C31 rises to the target voltage, the control unit 2 controls the rear stage switch tube to discharge.
The energy storage capacitor 4 (C31 in the figure) is used for storing electric energy for the detonation of the magnetoelectric detonator; the capacitor is charged and discharged by a charge and discharge control circuit under the control of the control unit 2. The charging voltage of the energy storage capacitor can be set by adjusting the program parameters of the single chip microcomputer so as to meet the detonation requirements of different detonation loop conditions.
The switch circuit 5 comprises resistors R40, R46 and AD6 for detection, a relay K2A, a power switch tube Q4 and PWM _3_0 for controlling the high-frequency on-off of the power switch tube, wherein the PWM _3_0 is generated by a second PWM wave generation circuit. In the present embodiment, the second PWM wave generating circuit is a control circuit of the control unit. The connection part of the resistors R40 and R46 is connected with an AD6 sampling end of the control module through a resistor R44, the other end of the resistor R40 is connected with an electric detonator output end OUT1-1 through a relay K2A, the other end of the resistor R46 is connected with a source electrode of a switch tube Q4, a grid electrode of the switch tube Q4 is connected with a PWM control end of the control module, a resistor R48 is connected between the grid electrode and the source electrode of the switch tube Q4, and a drain electrode of the switch tube Q4 is connected with an electric detonator output end OUT 1-. The power switch tube Q4 is connected with the relay K2A, the AD6 is controlled through the control unit 2 to detect the voltage value, when the required voltage is reached, the relay K2A is closed, the switch circuit 5 is communicated, the PWM _3_0 controls the high-frequency on-off of the power switch tube Q4, and the high-frequency rectangular wave for the detonation of the magnetoelectric detonator is generated.
And the output circuit 6 is connected with a detonation bus of the magnetoelectric detonator and is an output interface of detonation. In order to avoid damage to the circuit caused by the excessively small resistance of the detonation loop, a power resistor is connected in series in the output circuit, the resistance value is 10-100 omega, the power is 10W, and the current output by the detonation instrument is limited.
The utility model discloses can adjust output high frequency rectangular wave frequency, peak voltage, duty cycle, output time isoparametric through the parameter that rationally sets up the singlechip procedure according to waiting to explode characteristics such as frequency characteristic, reliable detonation current, detonation loop resistance of magnetoelectric detonator, realize the detonation to the magnetoelectric detonator of different models under different conditions.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The magnetoelectric detonator initiation circuit is characterized by comprising
The direct current power supply provides electric energy for the whole circuit;
the energy storage capacitor is used for storing electric energy for detonation of the magnetoelectric detonator;
the charging and discharging control circuit comprises a transformer and a full-bridge rectifying circuit, the charging and discharging control circuit boosts the power supply voltage by receiving the instruction of the control unit, and the energy storage capacitor is charged through the full-bridge rectifying circuit; the charge and discharge control circuit discharges the energy storage capacitor by receiving an instruction of the control unit;
the switch circuit comprises a power switch tube and a PWM wave for controlling the high-frequency on-off of the power switch tube, the power switch tube is connected with the relay, the switch circuit is communicated, and the PWM wave controls the high-frequency on-off of the power switch tube to generate a high-frequency rectangular wave for the detonation of the magnetoelectric detonator;
the output circuit is connected with a detonation bus of the magnetoelectric detonator;
the charging and discharging control circuit and the switch circuit are respectively connected with the control unit, the energy storage capacitor is electrically connected with the charging and discharging control circuit, the energy storage capacitor is electrically connected with the switch circuit through the charging and discharging control circuit, and the output circuit is connected with the switch circuit.
2. The magnetoelectric detonator priming circuit according to claim 1, wherein the charge-discharge control circuit further comprises a first PWM wave generating circuit, and the first PWM wave generating circuit outputs two complementary PWM waves to raise the dc power supply to the priming voltage value through a transformer.
3. The magnetoelectric detonator priming circuit according to claim 1, wherein the switching circuit further comprises a second PWM wave generating circuit that outputs the PWM wave.
4. The magnetoelectric detonator priming circuit according to claim 1, wherein the switching circuit further comprises an AD detection circuit and a relay, the voltage value is detected through the AD detection circuit, and when the required voltage is reached, the relay is closed.
5. The magnetoelectric detonator priming circuit according to claim 1, wherein the full-bridge rectifying circuit is a full-bridge uncontrolled rectifying circuit.
6. The magnetoelectric detonator initiation circuit according to claim 1, wherein a power resistor is connected in series in the output circuit to limit the current output by the initiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465371.8U CN212340079U (en) | 2019-12-31 | 2019-12-31 | Magnetoelectric detonator detonating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922465371.8U CN212340079U (en) | 2019-12-31 | 2019-12-31 | Magnetoelectric detonator detonating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212340079U true CN212340079U (en) | 2021-01-12 |
Family
ID=74064522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922465371.8U Active CN212340079U (en) | 2019-12-31 | 2019-12-31 | Magnetoelectric detonator detonating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212340079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023923A (en) * | 2019-12-31 | 2020-04-17 | 西安物华巨能爆破器材有限责任公司 | Magnetoelectric detonator detonation control circuit |
-
2019
- 2019-12-31 CN CN201922465371.8U patent/CN212340079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023923A (en) * | 2019-12-31 | 2020-04-17 | 西安物华巨能爆破器材有限责任公司 | Magnetoelectric detonator detonation control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111023923A (en) | Magnetoelectric detonator detonation control circuit | |
| EP3002149B1 (en) | Battery charger for electric vehicles | |
| CN100456613C (en) | Switching power supply device | |
| CN100423404C (en) | DC power source unit with battery charging function | |
| KR20100085869A (en) | Battery charger and method for its operation | |
| CN114074561A (en) | Energy conversion device, operation method thereof and electric automobile | |
| JPH0350200B2 (en) | ||
| CN212340079U (en) | Magnetoelectric detonator detonating circuit | |
| JP2014212581A (en) | Battery charger and charging stand, and battery charger | |
| CN212340080U (en) | Portable magnetoelectric detonator detonating instrument | |
| JP6035282B2 (en) | Inductive power transmission device | |
| CN213734669U (en) | Energy conversion device and vehicle | |
| CN102223739A (en) | Circuit of microwave oven and control method thereof | |
| WO1981001488A1 (en) | Apparatus for recharging of batteries by means of pulsating current | |
| KR101337242B1 (en) | Rapid charger for battery of pulse type having energy recovery capability and the method of controlling the charger | |
| CN104501670B (en) | Small-sized high-peak power driving method, drive circuit and driver | |
| CN110011542B (en) | DC converter | |
| EP2803440B1 (en) | Capacitive welder and method for charging same | |
| JPH08182203A (en) | Pack battery charging control circuit | |
| CN213021248U (en) | Multi-gun-head electronic firecracker | |
| CN111023924A (en) | Portable magnetoelectric detonator detonating instrument and detonating method thereof | |
| US10886840B2 (en) | Multi-channel pulse sequencing to control the charging and discharging of capacitors into an inductive load | |
| JP4341047B2 (en) | Battery charger and battery welder | |
| CN110636654A (en) | Capacitance-inductance inverter power generator with high power-saving efficiency | |
| KR101233746B1 (en) | Switch for generating long pulse voltage and apparatus for generating long pulse current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |