AC/DC (alternative current/direct current) withstand voltage protective device of digital electronic detonator
A digital electronic detonator and protective device technology, applied in the direction of weapon accessories, fuzes, offensive equipment, etc., can solve the problems of not being able to resist 380V, and can not fundamentally solve the problem of resisting AC and DC, and achieve the effect of high safety performance
Inactive Publication Date: 2013-11-27
NANTONG XUNXIANG AUTOMATION EQUIP
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Problems solved by technology
[0005] At present, in terms of anti-AC and DC technology of electronic detonators, the usual practice is to connect a bidirectional Zener diode and a current-limiting resistor in series at the input of the electronic control module; this method can solve the specific anti-AC and DC characteristics, but cannot fundamentally solve the problem. Anti-AC and DC problems, for example, some electronic detonators can withstand 220V AC, and whether they can withstand 380V is another problem; some electronic detonators can resist DC up to 48V, but they can only persist for a limited time of tens of seconds, so some measures must be taken to completely solve the problem. these questions
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[0016] Below in conjunction with accompanying drawing, specific embodiment of the present invention is elaborated:
[0017] figure 2 It is a schematic diagram of the input protection circuit of the patent CN200820110735.X. Between the legs 200 of the detonator, a pair of zener diodes 14 are connected in series with opposite polarity. The zener diode 14 and the resistor 11 together constitute the input protection device 12. The forward conduction and reverse voltage limiting characteristics of nanodiodes improve the AC and DC resistance and antistatic properties of electronic detonators. The series resistance in this circuit structure will affect the communication speed and reliability of communication.
[0018] figure 1 It is a structural schematic diagram of the present invention, including foot wire 1, current control switch circuit 2, rectifier circuit 3, voltage control switch circuit 4, control circuit 5 and bridge wire 6, foot wire 1 is connected to rectifier circuit 3...
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The invention discloses an AC / DC (alternative current / direct current) withstand voltage protective device of a digital electronic detonator. The AC / DC withstand voltage protective device of the digital electronic detonator comprises a leg wire, a current control switch circuit, a rectifier circuit, a voltage control switch circuit, a control circuit and a bridge wire; the leg wire is sequentially connected with the rectifier circuit and the control circuit; the output end of the control circuit is provided with the bridge wire; the current control switch circuit is installed between the leg wire and the rectifier circuit; the voltage control switch circuit is installed between the rectifier circuit and the control circuit. The invention provides the AC / DC withstand voltage protective device of the digital electronic detonator, and high and low damage voltages can be resisted effectively by adopting the device; an electronic module of the detonator is protected from generating accidents; the AC / DC withstand voltage protective device of the digital electronic detonator is more reliable in use, and is higher in safety performance.
Description
technical field [0001] The patent of the present invention relates to the technical field of munitions, in particular to a digital electronic detonator AC and DC withstand voltage protection device. Background technique [0002] The digital electronic detonator uses the electronic control module as the delay device, and uses the capacitor as the energy source to detonate the ignition charge; when in use, the detonation controller communicates with the digital electronic detonator to perform electronic detonator state detection, second setting, and clock calibration Wait for the preparation work; at this stage, the communication voltage between the detonation controller and the digital electronic detonator is required to be lower than about 12V. After the preparation work is completed, the detonation controller charges the energy storage element (capacitor) of the digital electronic detonator with a higher voltage (usually 12~30V), and then sends a detonation command. After t...
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IPC IPC(8): F42C19/12
Inventor钱建兵
OwnerNANTONG XUNXIANG AUTOMATION EQUIP