Inner-environment self-adaptive small-caliber missile remote dissociation protection MEMS safety system and method
阅读说明：本技术 一种内环境自适应小口径弹远距离解保mems安全系统及方法 (Inner-environment self-adaptive small-caliber missile remote dissociation protection MEMS safety system and method ) 是由 娄文忠 孙毅 冯恒振 汪金奎 付胜华 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种内环境自适应小口径弹远距离解保MEMS安全系统及方法。本发明的MEMS安全系统包括安全起爆控制系统和MEMS安全机构,在未达到二级解保条件时,安全起爆控制系统对电磁驱动器施加电流产生磁场,对离心隔爆滑块施加拉力使得其相对位置不变；并且安全起爆控制系统控制对电磁驱动器提供的电流大小,使得电磁驱动器温度在最大阈值温度以下；本发明具有内环境自适应的特点,并具有结构尺寸小型化、高可靠性、安全系数高等优势；其次,针对广泛应用电磁驱动器作为保险机构,在使用过程中易产生温度过高的问题,提出了具有温度自适应的MEMS引信安全控制系统,提高了系统工作安全性与可靠性。(The invention discloses an internal environment self-adaptive small-caliber elastic long-distance dissociation protection MEMS safety system and a method. The MEMS safety system comprises a safety detonation control system and an MEMS safety mechanism, wherein when the condition of secondary protection is not met, the safety detonation control system applies current to an electromagnetic driver to generate a magnetic field, and applies pulling force to a centrifugal explosion-proof sliding block to enable the relative position of the centrifugal explosion-proof sliding block to be unchanged; the safety detonation control system controls the current provided for the electromagnetic driver, so that the temperature of the electromagnetic driver is below the maximum threshold temperature; the invention has the characteristic of self-adaptation of the internal environment and has the advantages of small structural size, high reliability, high safety factor and the like; secondly, aiming at the problem that an electromagnetic driver is widely applied as a safety mechanism and the temperature is easily overhigh in the using process, the MEMS fuse safety control system with the temperature self-adaption is provided, and the working safety and the reliability of the system are improved.)
1. An inner environment self-adaptive small-caliber bomb long-distance dissociation protection MEMS safety system, a micro initiating explosive system of a small-caliber bomb comprises an initiating explosive energy-exchanging source, a micro initiating explosive and a micro booster explosive which are aligned in sequence; the MEMS safety system is installed between the initiating explosive device conversion source and the micro initiating explosive, and the surface of the MEMS safety system is vertical to the emission direction, and the MEMS safety system is characterized by comprising: a safety detonation control system and an MEMS safety mechanism; the safety detonation control system is respectively connected to the MEMS safety mechanism and the micro initiating system; the MEMS safety mechanism is of an axisymmetric structure in the centrifugal force direction and comprises a frame, a frame limiting groove, a recoil flame-proof sliding block, a recoil overload threshold value judging mechanism, a recoil limiting pin, a recoil limiting groove, a centrifugal flame-proof sliding block, a centrifugal limiting pin, a frame cantilever beam, a locking mechanism, a sliding block magnet hole, a magnet, an electromagnetic driver and a detonation transmission hole, wherein the frame is a supporting frame with a hollow inner part; the inside of the backseat flame-proof sliding block is hollow, the centrifugal flame-proof sliding block is positioned in the backseat flame-proof sliding block, a backseat limiting groove is formed in the inner edge of the front end of the backseat flame-proof sliding block and corresponds to the backseat limiting groove, a centrifugal limiting pin with a complementary shape is arranged at the edge of the front end of the centrifugal flame-proof sliding block, a groove is formed in the bottom end of the centrifugal flame-proof sliding block, a frame cantilever beam connected with the inner edge of the bottom end of the frame is arranged in the groove, and; the center planes of the frame, the recoil flame-proof sliding block and the centrifugal flame-proof sliding block are positioned in the same plane, and the upper and lower surfaces of the recoil flame-proof sliding block and the centrifugal flame-proof sliding block are lower than the upper and lower surfaces of the frame; a slider magnet hole is formed in the centrifugal explosion-proof slider, a magnet is arranged in the slider magnet hole, and an electromagnetic driver is arranged at the position, right opposite to the slider magnet hole, of the bottom end of the frame; the electromagnetic driver is connected to the safe detonation control system; a explosion transmission hole is formed in the centrifugal explosion-proof sliding block; the MEMS security mechanism has a security state and an attack state; before the small-caliber bomb is not launched, the MEMS safety mechanism is in a safe state, the recoil explosion-proof sliding block is fixed through a recoil overload threshold value judging mechanism, and the explosion-transmitting hole and the micro initiating explosive system are staggered; when ignition and emission are carried out, a small-diameter bomb starts to generate displacement under the action of huge chamber pressure in an emission tube and rotates at a high speed under the action of rifling in the emission tube, a recoil explosion-proof sliding block senses recoil overload and meets primary relief conditions, a recoil overload threshold value judging mechanism is broken and moves along the direction of centrifugal force, and a recoil limiting pin is clamped into a frame limiting groove to fix the position of the recoil explosion-proof sliding block; meanwhile, the safe detonation control system applies current to the electromagnetic driver, the electromagnetic driver generates a magnetic field, electromagnetic force which is opposite to the centrifugal force direction and not smaller than the maximum centrifugal force during flight is applied to the magnet, and pulling force is applied to the centrifugal flame-proof sliding block to enable the relative position of the centrifugal flame-proof sliding block to be unchanged; the safety detonation control system detects the temperature of the electromagnetic driver in real time and controls the current provided for the electromagnetic driver so that the temperature of the electromagnetic driver is below the maximum threshold temperature; when a secondary release condition is met, the safety detonation control system sends a release instruction, the electromagnetic driver is powered off, the centrifugal explosion-proof slide block moves along the centrifugal force direction under the action of the centrifugal force, the centrifugal limiting pin is clamped in the recoil limiting groove, the position of the centrifugal explosion-proof slide block is limited by the locking mechanism, and the explosion transfer hole is aligned with the micro firer system and enters an attack state; the safety detonation control system controls the miniature firer system to detonate.
2. The MEMS security system of claim 1, wherein the secure detonation control system comprises: the device comprises a main control unit, a temperature self-adaptive control system, a detonation unit and a power supply unit; the temperature self-adaptive control system comprises a temperature sensor and a control threshold unit; the power supply unit is respectively connected to the main control unit and the detonation unit, is connected to an electromagnetic driver of the MEMS safety mechanism through the control threshold unit, and provides working voltage; the electromagnetic driver is connected to a temperature sensor of the temperature self-adaptive control system, and the temperature sensor is connected to the main control unit; the main control unit is also respectively connected to a control threshold unit, a detonation unit and a power supply unit of the temperature self-adaptive control system; the detonation unit is connected to the micro-firer system; when transmitting, the main control unit controls the power supply unit to supply current to the electromagnetic driver to generate an electromagnetic field; meanwhile, the temperature sensor collects the temperature of the electromagnetic driver in real time and transmits the temperature to the main control unit, the main control unit converts the analog signal into a digital signal and compares the digital signal with the stored maximum threshold temperature, and the current of the electromagnetic driver is controlled by controlling the threshold unit so that the temperature of the electromagnetic driver is below the maximum threshold temperature and the current of the electromagnetic driver is kept above the minimum threshold current; when the secondary release condition is met, the main control unit sends a release instruction to the power supply unit, the power supply unit and the electromagnetic driver are disconnected, and the electromagnetic driver is disconnected; the main control unit sends a detonation instruction to the detonation unit, and the detonation unit detonates the miniature initiating explosive system.
3. The MEMS security system of claim 2, wherein the control threshold unit employs a sliding rheostat, and if the temperature of the electromagnetic actuator is greater than a maximum threshold temperature, the main control unit controls the resistance value of the sliding rheostat to become larger, so as to reduce the current of the electromagnetic actuator; if the temperature of the electromagnetic driver is lower than the maximum threshold temperature, the main control unit does not change the resistance value of the slide rheostat, and the resistance value of the slide rheostat enables the current of the electromagnetic driver to be larger than the minimum threshold current.
4. The MEMS security system of claim 1, wherein one side of the latching mechanism is fixed to a side edge of the frame cantilever beam, and the other side of the latching mechanism just contacts a side edge of the centrifugal flame-proof slider; the locking mechanism is of a plurality of spike-shaped structures with inclination angles in the centrifugal force direction, and when the centrifugal explosion-proof slide block moves to the explosion transfer hole along the centrifugal force direction to be aligned with the micro-initiating explosive system, the spike-shaped locking mechanism limits the movement of the centrifugal explosion-proof slide block.
5. The MEMS security system of claim 1 wherein the squat overload threshold determination mechanism is a dog-bone structure having a shape that is wider at both ends and narrower in the middle.
6. The MEMS security system of claim 1, wherein the MEMS security mechanism is made of a semiconductor material and has a thickness of 300 to 500 μm.
7. The MEMS safety system according to claim 1, wherein the heights of the upper surface and the lower surface of the recoil explosion-proof slider and the centrifugal explosion-proof slider, which are lower than the upper surface and the lower surface of the frame, are 10-30 μm.
8. A control method of an internal environment adaptive small caliber missile remote distance dissociation protection MEMS security system according to claim 1, characterized in that the control method comprises the following steps:
1) before the small-caliber bomb is not launched, the MEMS safety mechanism is in a safe state, the recoil explosion-proof sliding block is fixed through a recoil overload threshold value judging mechanism, and the explosion-transmitting hole and the micro initiating explosive system are staggered;
2) when ignition and emission are carried out, a small-diameter bomb starts to generate displacement under the action of huge chamber pressure in an emission tube and rotates at a high speed under the action of rifling in the emission tube, a recoil explosion-proof sliding block senses recoil overload and meets primary relief conditions, a recoil overload threshold value judging mechanism is broken and moves along the direction of centrifugal force, and a recoil limiting pin is clamped into a frame limiting groove to fix the position of the recoil explosion-proof sliding block;
3) when ignition and emission are carried out, the safe detonation control system applies current to the electromagnetic driver, the electromagnetic driver generates a magnetic field, electromagnetic force which is opposite to the direction of centrifugal force and not smaller than the maximum centrifugal force during flight is applied to the magnet, and pulling force is applied to the centrifugal explosion-proof sliding block to enable the relative position of the centrifugal explosion-proof sliding block to be unchanged;
4) meanwhile, the safety detonation control system detects the temperature of the electromagnetic driver in real time and controls the current provided for the electromagnetic driver so that the temperature of the electromagnetic driver is below the maximum threshold temperature;
5) when a secondary release condition is met, the safety detonation control system sends a release instruction, the electromagnetic driver is powered off, the centrifugal explosion-proof slide block moves along the centrifugal force direction under the action of the centrifugal force, the centrifugal limiting pin is clamped in the recoil limiting groove, the position of the centrifugal explosion-proof slide block is limited by the locking mechanism, and the explosion transfer hole is aligned with the micro firer system and enters an attack state;
6) the safety detonation control system controls the miniature firer system to detonate.
9. The control method of claim 8, wherein, when transmitting, the main control unit controls the power supply unit to supply current to the electromagnetic driver to generate an electromagnetic field; meanwhile, the temperature sensor collects the temperature of the electromagnetic driver in real time and transmits the temperature to the main control unit, the main control unit converts the analog signal into a digital signal and compares the digital signal with the stored maximum threshold temperature, and the current of the electromagnetic driver is controlled by controlling the threshold unit so that the temperature of the electromagnetic driver is below the maximum threshold temperature and the current of the electromagnetic driver is kept above the minimum threshold current; when the secondary release condition is met, the main control unit sends a release instruction to the power supply unit, the power supply unit and the electromagnetic driver are disconnected, and the electromagnetic driver is disconnected; the main control unit sends a detonation instruction to the detonation unit, and the detonation unit detonates the miniature initiating explosive system.
Technical Field
The invention relates to a small-caliber bomb technology, in particular to an internal environment self-adaptive small-caliber bomb long-distance dissociation protection MEMS safety system and a method.
Background
With the trend of intellectualization and miniaturization of new-generation weapons, the weapon is miniaturized. The battle platform not only needs to meet the requirements of sufficient damage power, but also needs to meet the requirements of dexterity, intelligence, complex functions and the like. Small caliber ammunition is mass assembled with its advantages of low cost, miniaturization, low power consumption, etc. Due to the miniaturization trend of ammunition structures, on the premise of ensuring the efficient striking and damaging power of ammunition on to a target, the reduction of the explosive loading of a warhead is infeasible. Therefore, miniaturization of the fuze system has become a major research project for many research institutes. At present, the fuse safety system safety relief mainly utilizes an electromagnetic driver to drive an explosion-proof sliding block to move so as to align an explosion-propagating sequence, an initiating explosive energy conversion element ignites an initiating explosive, and then the initiating explosive is ignited to finally detonate a warhead to strike a target. However, when the electromagnetic driver works, the current in the coil is too high to generate electric heat, so that the environment temperature is increased, and because the temperature sensitivity of the initiating explosive is high, the initiating explosive can be misinitiated when the temperature exceeds a certain threshold value, so that the reliability and the safety of the fuse safety system are reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an internal environment self-adaptive small-caliber missile remote dissociation protection MEMS safety system and method, which not only meet the requirements of MEMS fuze intellectualization and miniaturization, but also improve the safety and reliability of system action.
One objective of the invention is to provide an internal environment adaptive small-caliber remote dissociation protection MEMS safety system.
The miniature initiating explosive system of the small-caliber bomb comprises an initiating explosive device, a miniature initiating explosive and a miniature booster explosive which are aligned in sequence; the MEMS safety system is arranged between the primary initiating explosive device energy conversion source and the micro initiating explosive, and the surface of the MEMS safety system is vertical to the emission direction.
The invention relates to an inner environment self-adaptive small-caliber bomb long-distance dissociation protection MEMS safety system, which comprises: a safety detonation control system and an MEMS safety mechanism; the safety detonation control system is respectively connected to the MEMS safety mechanism and the micro initiating system; the MEMS safety mechanism is of an axisymmetric structure in the centrifugal force direction and comprises a frame, a frame limiting groove, a recoil flame-proof sliding block, a recoil overload threshold value judging mechanism, a recoil limiting pin, a recoil limiting groove, a centrifugal flame-proof sliding block, a centrifugal limiting pin, a frame cantilever beam, a locking mechanism, a sliding block magnet hole, a magnet, an electromagnetic driver and a detonation transmission hole, wherein the frame is a supporting frame with a hollow inner part; the inside of the backseat flame-proof sliding block is hollow, the centrifugal flame-proof sliding block is positioned in the backseat flame-proof sliding block, a backseat limiting groove is formed in the inner edge of the front end of the backseat flame-proof sliding block and corresponds to the backseat limiting groove, a centrifugal limiting pin with a complementary shape is arranged at the edge of the front end of the centrifugal flame-proof sliding block, a groove is formed in the bottom end of the centrifugal flame-proof sliding block, a frame cantilever beam connected with the inner edge of the bottom end of the frame is arranged in the groove, and; the center planes of the frame, the recoil flame-proof sliding block and the centrifugal flame-proof sliding block are positioned in the same plane, and the upper and lower surfaces of the recoil flame-proof sliding block and the centrifugal flame-proof sliding block are lower than the upper and lower surfaces of the frame; a slider magnet hole is formed in the centrifugal explosion-proof slider, a magnet is arranged in the slider magnet hole, and an electromagnetic driver is arranged at the position, right opposite to the slider magnet hole, of the bottom end of the frame; the electromagnetic driver is connected to the safe detonation control system; a explosion transmission hole is formed in the centrifugal explosion-proof sliding block; the MEMS security mechanism has a security state and an attack state; before the small-caliber bomb is not launched, the MEMS safety mechanism is in a safe state, the recoil explosion-proof sliding block is fixed through a recoil overload threshold value judging mechanism, and the explosion-transmitting hole and the micro initiating explosive system are staggered; when ignition and emission are carried out, a small-diameter bomb starts to generate displacement under the action of huge chamber pressure in an emission tube and rotates at a high speed under the action of rifling in the emission tube, a recoil explosion-proof sliding block senses recoil overload and meets primary relief conditions, a recoil overload threshold value judging mechanism is broken and moves along the direction of centrifugal force, and a recoil limiting pin is clamped into a frame limiting groove to fix the position of the recoil explosion-proof sliding block; meanwhile, the safe detonation control system applies current to the electromagnetic driver, the electromagnetic driver generates a magnetic field, electromagnetic force which is opposite to the centrifugal force direction and not smaller than the maximum centrifugal force during flight is applied to the magnet, and pulling force is applied to the centrifugal flame-proof sliding block to enable the relative position of the centrifugal flame-proof sliding block to be unchanged; the safety detonation control system detects the temperature of the electromagnetic driver in real time and controls the current provided for the electromagnetic driver so that the temperature of the electromagnetic driver is below the maximum threshold temperature; when a secondary release condition is met, the safety detonation control system sends a release instruction, the electromagnetic driver is powered off, the centrifugal explosion-proof slide block moves along the centrifugal force direction under the action of the centrifugal force, the centrifugal limiting pin is clamped in the recoil limiting groove, the position of the centrifugal explosion-proof slide block is limited by the locking mechanism, and the explosion transfer hole is aligned with the micro firer system and enters an attack state; the safety detonation control system controls the miniature firer system to detonate.
The safe detonation control system comprises: the device comprises a main control unit, a temperature self-adaptive control system, a detonation unit and a power supply unit; the temperature self-adaptive control system comprises a temperature sensor and a control threshold unit; the power supply unit is respectively connected to the main control unit and the detonation unit, is connected to an electromagnetic driver of the MEMS safety mechanism through the control threshold unit, and provides working voltage; the electromagnetic driver is connected to a temperature sensor of the temperature self-adaptive control system, and the temperature sensor is connected to the main control unit; the main control unit is also respectively connected to a control threshold unit, a detonation unit and a power supply unit of the temperature self-adaptive control system; the detonation unit is connected to the micro-firer system; when transmitting, the main control unit controls the power supply unit to supply current to the electromagnetic driver to generate an electromagnetic field; meanwhile, the temperature sensor collects the temperature of the electromagnetic driver in real time and transmits the temperature to the main control unit, the main control unit converts the analog signal into a digital signal and compares the digital signal with the stored maximum threshold temperature, and the current of the electromagnetic driver is controlled by controlling the threshold unit so that the temperature of the electromagnetic driver is below the maximum threshold temperature and the current of the electromagnetic driver is kept above the minimum threshold current; when the secondary release condition is met, the main control unit sends a release instruction to the power supply unit, the power supply unit and the electromagnetic driver are disconnected, and the electromagnetic driver is disconnected; the main control unit sends a detonation instruction to the detonation unit, and the detonation unit detonates the miniature initiating explosive system. The second-level relief condition is that the small-caliber bomb moves to a distance beyond the safe distance of the muzzle, and the safety is relieved. When the current of the electromagnetic driver is at the minimum threshold current, the electromagnetic force of the magnetic field generated by the electromagnetic driver on the magnet is not less than the electromagnetic force of the maximum centrifugal force during flight.
The control threshold unit adopts a slide rheostat, and if the temperature of the electromagnetic driver is higher than the maximum threshold temperature, the main control unit controls the resistance value of the slide rheostat to be increased, so that the current of the electromagnetic driver is reduced; if the temperature of the electromagnetic driver is lower than the maximum threshold temperature, the main control unit does not change the resistance value of the slide rheostat, and the resistance value of the slide rheostat enables the current of the electromagnetic driver to be larger than the minimum threshold current.
Due to the high sensitivity of the micro-initiating explosive device system, in order to prevent the temperature rise caused by the heating of the coil by the current in the electromagnetic driver and the error detonation of the micro-initiating explosive device system, a temperature self-adaptive control system is adopted, the temperature sensor constantly monitors and acquires the ambient temperature and transmits the temperature information to the main control unit, and when the temperature is higher than the set maximum threshold temperature, the main control unit controls the threshold unit to increase the resistance so as to reduce the current of the electromagnetic driver.
The safe detonation control system comprises an initiating explosive device energy conversion element, a micro initiating explosive and a micro booster explosive which are connected in sequence; when the main control unit sends a detonation instruction to the detonation unit, the detonation unit detonates the initiating explosive energy conversion unit to generate electric detonation to ignite the micro initiating explosive and further ignite the micro booster explosive, and the energy is gradually amplified from the initiating explosive energy conversion unit to the micro booster explosive until the main explosive of the warhead is detonated.
One side of the locking mechanism is fixed on the side edge of the frame cantilever beam, the other side of the locking mechanism just contacts the side edge of the centrifugal flame-proof sliding block, the locking mechanism is of a plurality of spike-shaped structures with inclination angles along the centrifugal force direction, when the centrifugal flame-proof sliding block moves to the explosion transfer hole along the centrifugal force direction to be aligned with the micro-firer system, the spike-shaped locking mechanism limits the movement of the centrifugal flame-proof sliding block, and only can move along the direction of the centrifugal force but can not move along the opposite direction.
The squat overload threshold judging mechanism adopts a dog bone structure and is in a shape that two ends are wide and the middle is narrow.
The MEMS safety mechanism is made of semiconductor materials, and the thickness of the MEMS safety mechanism is 300-500 mu m.
The height that the upper and lower surfaces of recoil flame proof slider and centrifugal flame proof slider are all less than the upper and lower surfaces of frame is 10 ~ 30 mu m.
The invention also aims to provide a control method of the internal environment self-adaptive small-caliber remote dissociation protection MEMS safety system.
The invention discloses a control method of an internal environment self-adaptive small-caliber missile remote dissociation protection MEMS safety system, which comprises the following steps of:
1) before the small-caliber bomb is not launched, the MEMS safety mechanism is in a safe state, the recoil explosion-proof sliding block is fixed through a recoil overload threshold value judging mechanism, and the explosion-transmitting hole and the micro initiating explosive system are staggered;
2) when ignition and emission are carried out, a small-diameter bomb starts to generate displacement under the action of huge chamber pressure in an emission tube and rotates at a high speed under the action of rifling in the emission tube, a recoil explosion-proof sliding block senses recoil overload and meets primary relief conditions, a recoil overload threshold value judging mechanism is broken and moves along the direction of centrifugal force, and a recoil limiting pin is clamped into a frame limiting groove to fix the position of the recoil explosion-proof sliding block;
3) when ignition and emission are carried out, the safe detonation control system applies current to the electromagnetic driver, the electromagnetic driver generates a magnetic field, electromagnetic force which is opposite to the direction of centrifugal force and not smaller than the maximum centrifugal force during flight is applied to the magnet, and pulling force is applied to the centrifugal explosion-proof sliding block to enable the relative position of the centrifugal explosion-proof sliding block to be unchanged;
4) meanwhile, the safety detonation control system detects the temperature of the electromagnetic driver in real time and controls the current provided for the electromagnetic driver so that the temperature of the electromagnetic driver is below the maximum threshold temperature;
5) when a secondary release condition is met, the safety detonation control system sends a release instruction, the electromagnetic driver is powered off, the centrifugal explosion-proof slide block moves along the centrifugal force direction under the action of the centrifugal force, the centrifugal limiting pin is clamped in the recoil limiting groove, the position of the centrifugal explosion-proof slide block is limited by the locking mechanism, and the explosion transfer hole is aligned with the micro firer system and enters an attack state;
6) the safety detonation control system controls the miniature firer system to detonate.
When the electromagnetic driver transmits the electromagnetic waves, the main control unit controls the power supply unit to supply current to the electromagnetic driver to generate an electromagnetic field; meanwhile, the temperature sensor collects the temperature of the electromagnetic driver in real time and transmits the temperature to the main control unit, the main control unit converts the analog signal into a digital signal and compares the digital signal with the stored maximum threshold temperature, and the current of the electromagnetic driver is controlled by controlling the threshold unit so that the temperature of the electromagnetic driver is below the maximum threshold temperature and the current of the electromagnetic driver is kept above the minimum threshold current; when the secondary release condition is met, the main control unit sends a release instruction to the power supply unit, the power supply unit and the electromagnetic driver are disconnected, and the electromagnetic driver is disconnected; the main control unit sends a detonation instruction to the detonation unit, and the detonation unit detonates the miniature initiating explosive system.
The invention has the advantages that:
the MEMS safety system comprises a safety detonation control system and an MEMS safety mechanism, wherein when the secondary protection condition is not met, the safety detonation control system applies current to an electromagnetic driver to generate a magnetic field, and applies pulling force to a centrifugal flame-proof sliding block to enable the relative position of the centrifugal flame-proof sliding block to be unchanged; the safety detonation control system controls the current provided for the electromagnetic driver, so that the temperature of the electromagnetic driver is below the maximum threshold temperature; the invention has the characteristic of self-adaptation of an inner environment, and has the advantages of small structural size, high reliability, high safety coefficient and the like from the aspects of designing and processing the small-caliber cartridge fuse applied to the high-rotating-speed and high-overload environment; secondly, aiming at the problem that an electromagnetic driver is widely applied as a safety mechanism and the temperature is easily overhigh in the using process, the MEMS fuse safety control system with the temperature self-adaption is provided, and the working safety and the reliability of the system are improved.
Drawings
FIG. 1 is a schematic perspective view of a MEMS security mechanism of one embodiment of an internal environment adaptive small bore elastometric distance dissociation protection MEMS security system of the present invention;
FIG. 2 is a front view of a MEMS security mechanism of one embodiment of an internal environment adaptive small bore elastometric distance dissociation protection MEMS security system of the present invention;
FIG. 3 is a block diagram of an internal environment adaptive small caliber elastic long distance dissociation protection MEMS security system of the present invention.
Detailed Description
The invention will be further elucidated by means of specific embodiments in the following with reference to the drawing.
As shown in fig. 1 and 2, the internal environment adaptive small caliber elastic long-distance dissociation protection MEMS security system of the present embodiment includes: a safety detonation control system and an MEMS safety mechanism; the safety detonation control system is respectively connected to the MEMS safety mechanism and the micro initiating system; wherein, as shown in fig. 1 and 2, the MEMS safety mechanism is an axisymmetric structure about the centrifugal force direction, and includes a
As shown in fig. 3, the safety detonation control system includes: the device comprises a main control unit, a temperature self-adaptive control system, a detonation unit and a power supply unit; the temperature self-adaptive control system comprises a temperature sensor and a control threshold unit; the power supply unit is respectively connected to the main control unit and the detonation unit, is connected to an electromagnetic driver of the MEMS safety mechanism through the control threshold unit, and provides working voltage; the electromagnetic driver is connected to a temperature sensor of the temperature self-adaptive control system, and the temperature sensor is connected to the main control unit; the main control unit is also respectively connected to a control threshold unit, a detonation unit and a power supply unit of the temperature self-adaptive control system; the detonation unit is connected to the micro-pyrotechnic system. The material and dimensions of the electromagnetic actuator are selected such that the temperature of the electromagnetic actuator at the minimum threshold current is much less than the maximum threshold temperature.
The safe detonation control system comprises an initiating explosive device energy conversion element, a micro initiating explosive and a micro booster explosive which are connected in sequence; the energy conversion element of the initiating explosive device adopts a semiconductor bridge, the energy conversion element of the initiating explosive device generates electric explosion to ignite the micro initiating explosive, and then ignites the micro booster explosive, and the energy is amplified from the energy conversion element of the initiating explosive device to the micro booster explosive step by step until the main charge of the warhead is detonated.
In the embodiment, the MEMS safety mechanism adopts silicon, and the thickness is 400 μm; the upper and lower surfaces of the recoil flame-proof slide block and the centrifugal flame-proof slide block are 20 micrometers lower than the upper and lower surfaces of the frame.
The control method of the internal environment self-adaptive small-caliber elastic remote dissociation protection MEMS safety system comprises the following steps:
1) before the small-caliber bomb is not launched, the MEMS safety mechanism is in a safe state, the recoil explosion-proof sliding block is fixed through a recoil overload threshold value judging mechanism, and the explosion-transmitting hole and the micro initiating explosive system are staggered;
2) when ignition and emission are carried out, a small-diameter bomb starts to generate displacement under the action of huge chamber pressure in an emission tube and rotates at a high speed under the action of rifling in the emission tube, a recoil explosion-proof sliding block senses recoil overload and generates larger displacement to meet primary solution and protection conditions, a recoil overload threshold value judging mechanism is broken and moves along the direction of centrifugal force, and a recoil limiting pin is clamped into a frame limiting groove to fix the position of the recoil explosion-proof sliding block;
3) when ignition and emission are carried out, the safe detonation control system applies current to the electromagnetic driver, the electromagnetic driver generates a magnetic field, electromagnetic force which is opposite to the direction of centrifugal force and not smaller than the maximum centrifugal force during flight is applied to the magnet, and pulling force is applied to the centrifugal explosion-proof sliding block to enable the relative position of the centrifugal explosion-proof sliding block to be unchanged;
4) meanwhile, the safety detonation control system detects the temperature of the electromagnetic driver in real time and controls the current provided for the electromagnetic driver so that the temperature of the electromagnetic driver is below the maximum threshold temperature;
5) when a secondary protection condition is met, namely when the small-caliber bomb moves to a distance beyond the safe distance of a muzzle, the safe detonation control system sends a protection command, the electromagnetic driver is powered off, the centrifugal explosion-proof slide block moves along the centrifugal force direction under the action of the centrifugal force, the centrifugal limiting pin is clamped into the recoil limiting groove, the position of the centrifugal explosion-proof slide block is limited by the locking mechanism, and the explosion-conducting hole is aligned with the micro-firer system and enters an attack state;
6) the safety detonation control system controls the miniature firer system to detonate.
Finally, it is noted that the disclosed embodiments are intended to aid in further understanding of the invention, but those skilled in the art will appreciate that: various substitutions and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the embodiments disclosed, but the scope of the invention is defined by the appended claims.
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