CN215930699U

CN215930699U - Controlled high-voltage generating device

Info

Publication number: CN215930699U
Application number: CN202121778526.4U
Authority: CN
Inventors: 杨龙; 方辉; 余艳平; 李诗韬
Original assignee: Hubei Handan Electromechanical Co ltd
Current assignee: Hubei Handan Electromechanical Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-01
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a controlled high-voltage generating device which comprises an explosion circuit and a control circuit, wherein a trigger end of the control circuit is connected with a first resistor, the other end of the control circuit is connected with a first triode, a collector electrode of the first triode is connected with an optical coupler, a voltage output end of the optical coupler is connected with a voltage conversion chip, an output end of the voltage conversion chip is connected with a grid electrode of an MOS (metal oxide semiconductor) tube, one end of a secondary side coil of a transformer of the explosion circuit is connected with a second diode, an output end of the second diode is respectively connected with a sixth capacitor, the sixth resistor and a source electrode of the MOS tube, a drain electrode of the MOS tube is connected with an anode pin wire of a detonator, and the secondary side coil of the transformer, the sixth capacitor, the other end of the sixth resistor and a cathode pin wire of the detonator are all grounded. And opening the MOS tube according to the trigger signal of the control circuit, and switching on the explosion circuit to control the detonation. The device adopts MOS devices with high voltage and large current, has repeated breaking capacity, ensures that the explosion generating device has the function of restorable insurance, can realize self-failure and is convenient for ammunition recovery.

Description

Controlled high-voltage generating device

Technical Field

The utility model relates to the field of missile fuzes, in particular to a controlled high-voltage generating device.

Background

In the missile detonation process, an energy storage capacitor of the detonation circuit is charged firstly, and the stored capacitor discharges to the impact sheet detonator through high-voltage power generation to detonate the impact sheet detonator. In the design of connecting a discharge circuit of an explosion generating device, the existing mode adopts a high-voltage electric conduction high-voltage discharge tube or adopts a high-voltage silicon controlled rectifier as a switch tube, and when the missile needs to be controlled to stop explosion and the ammunition is convenient to recover due to self-failure, the two methods are difficult to realize the function of recovering the explosion safety of the missile.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a controlled high-pressure generating device, so as to solve the problem that the existing explosion generation control device is difficult to implement missile explosion insurance restorability.

IN a first aspect of the embodiments of the present invention, there is provided a controlled high voltage generating device, including an explosion circuit and a control circuit, where a trigger end of an explosion signal of the control circuit is connected to a first resistor, the other end of the first resistor is connected to a second resistor, a first capacitor and a base of a first triode, the other ends of the second resistor, the first capacitor and an emitter of the first triode are all grounded, a collector of the first triode is connected to a K end of an optocoupler, a first power supply is connected to a third resistor, the other end of the third resistor is connected to an a end of the optocoupler, an anode of the second power supply is respectively connected to a VCC end of a voltage conversion chip, a second capacitor, a fourth resistor, a fifth resistor and a VCC end of the optocoupler, the other end of the fourth resistor is connected to a VE end, the VO end of the optocoupler and the other end of the fifth resistor are both connected to an IN end of the voltage conversion chip, the GND end of the optocoupler and the other end of the second capacitor are both connected to a cathode of the second power supply, the GND end of the voltage conversion chip is connected with the negative electrode of the second power supply, the EN end of the voltage conversion chip and the positive electrode of the second power supply are both connected with one end of a fourth capacitor, the other end of the fourth capacitor is grounded, the OUT end of the voltage conversion chip is respectively connected with a fifth capacitor, a bidirectional breakdown diode and a grid electrode of an MOS (metal oxide semiconductor) tube, the other end of the fifth capacitor is connected with the negative electrode of the second power supply, and the other end of the bidirectional breakdown diode is grounded;

the explosion circuit comprises a second diode, a sixth capacitor, a sixth resistor, a detonator and an MOS (metal oxide semiconductor) tube, one end of a secondary coil of the transformer is connected with the input end of the second diode, the output end of the second diode is respectively connected with the sixth capacitor, the sixth resistor and the source electrode of the MOS tube, the drain electrode of the MOS tube is connected with the positive pin wire of the detonator, and the other end of the secondary coil of the transformer, the other end of the sixth capacitor, the other end of the sixth resistor and the negative pin wire of the detonator are all grounded.

In one embodiment, the output voltage of the first power supply is 3.3V, the voltage of the anode of the second power supply is 8V, and the voltage of the cathode of the second power supply is-8V.

In the utility model, the MOS device with high voltage and large current is adopted, the repeated breaking capacity is realized, the explosion generating device has the function of recovering the safety, and after the control end sends out the self-failure signal, the energy storage capacitor is self-discharged through the discharge resistor, so that ammunition is in a safe state, the self-failure of the ammunition to be sent is realized, and the ammunition recovery is convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a controlled high voltage generator according to an embodiment of the present invention.

Detailed Description

In order to make the objects, features and advantages of the present invention more apparent and understandable, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons skilled in the art without any inventive work shall fall within the protection scope of the present invention, and the principle and features of the present invention shall be described below with reference to the accompanying drawings.

The terms "comprises" and "comprising," when used in this specification and claims, and in the accompanying drawings and figures, are intended to cover non-exclusive inclusions, such that a process, method or system, or apparatus that comprises a list of steps or elements is not limited to the listed steps or elements. In addition, "first" and "second" are used to distinguish different objects, and are not used to describe a specific order.

Referring to fig. 1, a circuit structure diagram of a controlled high voltage generator according to an embodiment of the present invention includes an explosion circuit and a control circuit, where a trigger end of an explosion signal of the control circuit is connected to a first resistor R1, the other end of the first resistor R1 is connected to a second resistor R2, a first capacitor C1 and a base of a first transistor Q1, the other end of the second resistor R2, the other end of the first capacitor C1 and an emitter of the first transistor Q1 are all grounded, a collector of the first transistor Q1 is connected to a K (KATHODE, cathode) end of an optical coupler, a first power supply is connected to a third resistor R3, the other end of the third resistor R3 is connected to an A (ANODE) end of the optical coupler, an ANODE of the second power supply is connected to a VCC end (VCC input end) of a voltage conversion chip U2, a second capacitor C2, a fourth resistor R4, a fifth resistor R5 and a VCC end of a U1, and the other end of a fourth resistor R4 is connected to a voltage input end (v end of the optical coupler U1), the VO end (voltage output end) of the optical coupler and the other end of the fifth resistor R5 are connected with the IN end (input end) of a voltage conversion chip U2, the VO end of the optical coupler and the other end of the fifth resistor R5 are connected with a third capacitor C3, the other end of the third capacitor C3 is connected with the negative electrode of a second power supply, the GND end (grounding end) of the optical coupler U1 and the other end of the second capacitor C2 are connected with the negative electrode of the second power supply, the GND end of the voltage conversion chip U2 is connected with the negative electrode of the second power supply, the EN end (enabling end) of the voltage conversion chip U2 and the positive electrode of the second power supply are connected with one end of a fourth capacitor C4, the other end of the fourth capacitor C4 is grounded, the OUT end (output end) of the voltage conversion chip U2 is respectively connected with the fifth capacitor C5, a diac D1 and the grid of an MOS tube, the other end of the fifth capacitor C5 is connected with the negative electrode of the second power supply, and the other end of the diac D1 is grounded;

the explosion circuit comprises a second diode D2, a sixth capacitor C6, a sixth resistor R6, a detonator and an MOS (metal oxide semiconductor) tube, one end of a secondary coil of the transformer is connected with the input end of the second diode D2, the output end of the second diode D2 is respectively connected with the sixth capacitor C6, the sixth resistor R6 and the source electrode of the MOS tube, the drain electrode of the MOS tube is connected with the positive pin line of the detonator, and the other end of the secondary coil of the transformer, the other end of the sixth capacitor, the other end of the sixth resistor and the negative pin line of the detonator are all grounded.

It should be noted that 1 and 4 paths of the optocoupler U1 are empty pins NC, 2 paths represent input of the optocoupler anode a, 3 paths represent output of the optocoupler cathode K, and 5 paths, 6 paths, 7 paths, and 8 paths sequentially represent ground, voltage output, voltage input, and power supply voltage. When the first triode Q1 is in a saturation state, the collector and the emitter are turned on, the 2-way and 3-way optical couplers are turned on, and the VO terminal outputs a low level.

The voltage conversion chip sequentially shows voltage input, grounding, power supply voltage, voltage output and enabling control in a way of 1 way, 2 ways, 3 ways, 4 ways and 5 ways. When the IN terminal inputs a high level, the OUT terminal outputs a low level, and correspondingly, when the IN terminal inputs a low level, the OUT terminal outputs a high level.

The output voltage of the first power supply is 3.3V, the positive voltage of the second power supply is 8V, and the negative voltage of the second power supply is-8V.

The diac D1 is used to protect the control circuit from the transient high energy pulse voltage.

It should be noted that in the embodiment of the present invention, an integrated design of a domestic high-power MOS transistor control thyristor (MCT transistor), a voltage resistance of 1700V, and a repetitive pulse current of 4000A are selected. Meanwhile, the high-voltage switch control electrode is integrated with a transient protection diode, parameter requirements are met, the packaging is T0220, and miniaturization requirements are met.

The working principle is as follows: the control circuit detonation signal trigger end sends out a detonation signal QB1, the QB1 is a low-level signal at ordinary times, after passing through a resistor R1, a triode Q1 works in a biased mode in a cut-off region (the current between a collector and an emitter is small and the current is not conducted), an optocoupler U1 outputs a high level, a U2 outputs a low level, and a bipolar device MOS transistor Q2 is not conducted; when the detonation signal QB1 of trigger end is high level, triode Q1 (saturation state) switches on, and opto-coupler U1 outputs low level, and voltage conversion chip U2 outputs high level, opens MOS pipe Q2, switches on the explosion circuit, and the energy of storage among the energy-storage capacitor C6 is to striking piece detonator release, and the blasting piece detonator is detonated under the heavy current energy condition.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A controlled high voltage generating device comprises an explosion circuit and a control circuit, and is characterized IN that a detonation signal triggering end of the control circuit is connected with a first resistor, the other end of the first resistor is connected with a second resistor, a first capacitor and a base electrode of a first triode, the other end of the second resistor, the other end of the first capacitor and an emitting electrode of the first triode are all grounded, a collector electrode of the first triode is connected with a K end of an optical coupler, a first power supply is connected with a third resistor, the other end of the third resistor is connected with an A end of the optical coupler, an anode of the second power supply is respectively connected with a VCC end of a voltage conversion chip, a second capacitor, a fourth resistor, a fifth resistor and a VCC end of the optical coupler, the other end of the fourth resistor is connected with a VE end of the optical coupler, a VO end of the optical coupler and the other end of the fifth resistor are both connected with an IN end of the voltage conversion chip, a GND end of the optical coupler and the other end of the second capacitor are both connected with a cathode of the second power supply, the GND end of the voltage conversion chip is connected with the negative electrode of the second power supply, the EN end of the voltage conversion chip and the positive electrode of the second power supply are both connected with one end of a fourth capacitor, the other end of the fourth capacitor is grounded, the OUT end of the voltage conversion chip is respectively connected with a fifth capacitor, a bidirectional breakdown diode and a grid electrode of an MOS (metal oxide semiconductor) tube, the other end of the fifth capacitor is connected with the negative electrode of the second power supply, and the other end of the bidirectional breakdown diode is grounded;

2. The apparatus of claim 1, wherein the output voltage of the first power supply is 3.3V, the voltage of the positive pole of the second power supply is 8V, and the voltage of the negative pole of the second power supply is-8V.