CN208704550U - A kind of in-line arrangement electronic fuse arming device - Google Patents

Abstract

The utility model provides a kind of in-line arrangement electronic fuse arming device, and the program includes control module, switch module, late-class circuit；Control module can issue high level solution information-preserving number；Rear class operating circuit and positive pole is connected after receiving information-preserving number of solution in switch module.The program is that fuse increases level-one solution guarantor's working condition, before not receiving information-preserving number of solution, protecting switch due to the solution powered just between rear class operating circuit module is to disconnect, rear class operating circuit module is not powered, in-line arrangement fuse will not generate high pressure, so fuse advancement and will not bear the electricity and the combined stress of environment in ballistic process.

Description

A kind of in-line arrangement electronic fuse arming device

Technical field

The utility model relates to fuses to insure design field, especially a kind of in-line arrangement electronic fuse arming dress It sets.

Background technique

Fuse is the important component in weapon system, it is solved in predefined conditions using target and environment or command information Except insurance, and in advantageous opportunity or position ignition or the ammunition warhead charge that ignites, it is typically mounted on rocket, guided missile, torpedo On equal ammunitions.The working principle of in-line arrangement fuse is to generate electrion by itself, generates pulse high current, detonation impact piece Detonator completes detonation Explosive sequence.

To guarantee product safety and according to instruction action, needs to protect step by solution, release fuse according to certain timing Insurance.The mode of in-line arrangement fuse arming is to protect switch by receiving information-preserving number of solution to internal either statically or dynamically solution and carry out On-off control, and then start fuse related function module and enter working condition.

The external input of fuse has power supply signal to conciliate information-preserving number, and power supply signal divides power supply just negative with power supply again, and power supply is negative Generally connect with common ground together, when rear class operating circuit must receive power supply just could work with the minus two kinds of power supply signals of powering Make.Each product testing and debugging for convenience powers what negative and fuse publicly linked together, and power supply is born to be not necessarily to individually solve and be protected； And solution guarantor is just being carried out to power supply, more accurate control can be realized to fuse rear class working circuit status.In-line arrangement fuse rear class When operating circuit is started to work, there will be the electromagnetic environments such as high voltagehigh frequency, if, according to trajectory timing, using using external environmental information Arming circuit controls the working condition of fuse, can reduce risk, improves reliability.

Presently mainly using single-chip microcontroller as fuze control chip, after logic control capable of being carried out according to external input information Output control signal drives MOS switch pipe, generallys use in in-line arrangement fuse design altogether at present, directly driven by single-chip microcontroller After MOS switch pipe conducting with power negative (ground) form access, be not implemented to power supply just with rear class operating circuit module arming Control, if after arming, rear class operating circuit module will be directly in powering state, can not prevent fuse from bearing from the root Electric stress or advancement reduce the reliability of product.

Utility model content

The purpose of this utility model aiming at deficiency of the prior art, and provides a kind of in-line arrangement electronics and draws Believe that the technical solution of arming device, the program are that fuse increases level-one solution guarantor's working condition, solution is information-preserving not receiving Before number, protecting switch due to the solution powered just between rear class operating circuit module is to disconnect, and rear class operating circuit module does not have Have power supply, in-line arrangement fuse will not generate high pressure, so fuse will not advancement and bear ballistic process in electricity and environment Combined stress.

This programme is achieved by the following technical measures:

A kind of in-line arrangement electronic fuse arming device includes control module, switch module, late-class circuit；Control Module can issue high level solution information-preserving number；Rear class operating circuit and power supply is being connected just after receiving information-preserving number of solution in switch module Pole.

As the preferred of this programme: control module includes signal receiving circuit and processor；Signal receiving circuit is used for It receives higher level's timing or control signal is converted into the received digital logic signal of processor energy；Processor is to the number received Word logical signal is differentiated, and can export information-preserving number of solution.

As the preferred of this programme: late-class circuit starts fuse blasting work after connecting with positive pole.

As the preferred of this programme: switch module includes driving resistance, PMOS, NMOS；One end of control module with connect Ground terminal connection, the signal of control module generate the pole the G connection at end and NMOS and between be in series with driving resistance；The pole S of NMOS with Ground terminal connection, the pole G and ground terminal connection and between be in series with driving resistance, the pole the G connection of the pole D and PMOS and between be in series with Drive resistance；The pole S of PMOS is connect with external power supply anode, and the pole D is connect with late-class circuit.

As the preferred of this programme: NMOS and PMOS is normally off.

The beneficial effect of this programme can according to the description of the above program, since the program is fuse in this scenario Increase level-one solution protect working condition, do not receive solution information-preserving number before, due to power just with rear class operating circuit module it Between solution to protect switch be to disconnect, rear class operating circuit module do not power, and in-line arrangement fuse will not generate high pressure, and fuse will not Advancement and the combined stress for bearing the electricity and environment in ballistic process.After fuse receives information-preserving number of solution, solution protects switch connection Power supply is just connected with the access of late-class circuit, realizes power supply anode and rear class operating circuit solution is protected.The application is increased to certain A little sensitive and key function module level-one solutions protect working condition, especially for in-line arrangement fuse, if late-class circuit starts work Work will generate high-voltage high-frequency signal and in armed condition, and the utility model realizes rear class operating circuit module more smart True solution is protected, and Product Safety and reliability are improved.

It can be seen that the utility model compared with prior art, has substantive features and progress, the beneficial effect implemented Fruit is also obvious.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive Feature and/or step other than, can combine in any way.

Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only It is an example in a series of equivalent or similar characteristics.

By attached drawing, it can be seen that this programme includes control module, switch module, late-class circuit；Control module can Issue high level solution information-preserving number；Rear class operating circuit and positive pole is connected after receiving information-preserving number of solution in switch module.Control mould Block includes signal receiving circuit and processor；Signal receiving circuit is converted into for receiving higher level's timing or control signal Processor can received digital logic signal；Processor differentiates the digital logic signal received, and can export solution Information-preserving number.Late-class circuit starts fuse blasting work after connecting with positive pole.Switch module include driving resistance, PMOS,NMOS；One end of control module is connect with ground terminal, the signal of control module generate the pole the G connection at end and NMOS and it Between be in series with driving resistance；The pole S of NMOS is connect with ground terminal, the pole G and ground terminal connection and between be in series with driving resistance, D Pole and the pole G of PMOS connection and between be in series with driving resistance；The pole S of PMOS is connect with external power supply anode, the pole D and rear class electricity Road connection.NMOS and PMOS is normally off.

This programme mainly uses P-channel metal-oxide-semiconductor and N-channel MOS pipe working characteristics to realize: P-channel metal-oxide-semiconductor is normality pass It is disconnected, VP_GSFor the voltage between the pole PMOS tube G and the pole S, VP_THTo drive threshold voltage, VP_THFor negative value, work as VP_GS<VP_THWhen, PMOS tube conducting.N-channel MOS pipe is normality shutdown, VN_GSFor the voltage between the pole NMOS tube G and the pole S, VN_THTo drive thresholding Voltage, VN_THFor positive value, work as VN_GS>VN_THWhen, NMOS transistor conduction.

There are two types of current potentials for the driving signal that the control circuit of fuse generates: V+ and V-, V+ are after solution is protected, and control circuit is defeated Out solution protect control information-preserving number of signal solution+current potential；V- is with reference to zero potential.In addition the power supply signal V that fuse receives_{Power supply+}For The current potential of the anode input of power supply signal.

Before solving information-preserving number sending, two electrode potential of NMOS tube are as follows: VN_G=V-, VN_S=V-.So the VN of NMOS tube_GS=0V, VN_GS<VN_TH, it is unsatisfactory for NMOS transistor conduction condition, NMOS tube shutdown.The G of PMOS extremely high-impedance state, VP_GS<VP_TH, it is unsatisfactory for PMOS Pipe turn-on condition, PMOS tube shutdown, in not solving guarantor's state.

After solving information-preserving number sending, the pole NMOS tube G and S electrode potential are as follows: VN_G=V+, VN_S=V-.The pole G and the pole S two of NMOS tube The voltage VN at end_GS>VN_TH, meet NMOS transistor conduction condition, NMOS transistor conduction, current potential VN after conducting_S≈VN_D=V-.The G of PMOS tube Electrode potential and S electrode potential are respectively VP_G=VN_S=V-, VP_S=V_{Power supply+}, so VP_GS<VP_TH, meet PMOS tube turn-on condition, PMOS is led It is logical.Power supply passes through PMOS tube and is transmitted in late-class circuit, completes solution guarantor's movement, powers for late-class circuit.

The utility model is not limited to specific embodiment above-mentioned.The utility model expands to any in this specification The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group It closes.

Claims (5)

1. a kind of in-line arrangement electronic fuse arming device, it is characterized in that: including control module, switch module, rear class electricity Road；The control module can issue high level solution information-preserving number；Rear class work is connected after receiving information-preserving number of solution in the switch module Make circuit and positive pole.

2. a kind of in-line arrangement electronic fuse arming device according to claim 1, it is characterized in that: the control module It include signal receiving circuit and processor；The signal receiving circuit is converted for receiving higher level's timing or control signal It can received digital logic signal for processor；Processor differentiates the digital logic signal received, and can export Solve information-preserving number.

3. a kind of in-line arrangement electronic fuse arming device according to claim 1, it is characterized in that: the late-class circuit Start fuse blasting work after connecting with positive pole.

4. a kind of in-line arrangement electronic fuse arming device according to claim 1, it is characterized in that: the switch module It include driving resistance, PMOS, NMOS；One end of the control module is connect with ground terminal, and the signal of control module generates end Connect with the pole G of NMOS and between be in series with driving resistance；The pole S of the NMOS is connect with ground terminal, and the pole G is connect with ground terminal Be in series with driving resistance between and, the pole the G connection of the pole D and PMOS and between be in series with driving resistance；The pole S of the PMOS and outer The connection of portion's positive pole, the pole D is connect with late-class circuit.

5. a kind of in-line arrangement electronic fuse arming device according to claim 4, it is characterized in that: the NMOS and PMOS is normally off.