CN107367202B - Solid-state microampere protection device and its detonation sequence based on solid nitrogen microdrive - Google Patents
Solid-state microampere protection device and its detonation sequence based on solid nitrogen microdrive Download PDFInfo
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- CN107367202B CN107367202B CN201610318605.4A CN201610318605A CN107367202B CN 107367202 B CN107367202 B CN 107367202B CN 201610318605 A CN201610318605 A CN 201610318605A CN 107367202 B CN107367202 B CN 107367202B
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- laminar substrate
- microdrive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
- F42C15/30—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids of propellant gases, i.e. derived from propulsive charge or rocket motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
- F42C15/184—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a slidable carrier
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of solid-state microampere protection device based on solid nitrogen microdrive and the detonation sequences based on the security mechanism; nitrogen microdrive in safety protection device is connect by being connected bridge with silicon/pmma substrate main body; it is set as overall structure; simplify assembling process; and the safety protection device can improve the reliability of safety protection device not against environmental forces arming；The safety protection device uses the gas generant composition in accordance based on nitrogen generating agent, can both guarantee driving pressure, realizes larger displacement, can also control and produce temperature degree, prevent unintended detonation；In addition, being additionally provided with the structures such as film flying in the detonation sequence based on the security mechanism in the present invention, the fan-out capability of output medicine is improved, to be conducive to ignite desensitized explosive.
Description
Technical field
The invention belongs to MEMS priming system fields, and in particular to a kind of solid-state microampere guarantor based on solid nitrogen microdrive
Device and its detonation sequence.
Background technique
Since the nineties in last century, American-European countries has carried out MEMS technology largely to grind in terms of fuse security system
Study carefully, designs or have developed various types of MEMS security mechanisms, including springlock pin type, aerodynamic slider formula, electromagnetic brake type
Etc..But current MEMS technology also faces many problems, such as microscopic heat conduction in fuze safety mechanism, cannot achieve compared with
Big displacement and anti high overload problem etc..
Explosive sequence be usually by a series of excitation sensitivity from high to low, the ascending priming system of output energy forms
Ordered arrangement is amplified to energy appropriate to realize that lesser input energy is controlled, thus the ammunition main charge that detonates.Propagation of explosion
There are two types of the structure of sequence is current, i.e. in-line arrangement (such as Exploding foil initiator EFI) and the partition-type with security mechanism.
“Robinson C H,Wood R H,Hoang T Q.Development Of Inexpensive,Ultra-
Miniature MEMS-Based Safety And Arming(S&A)Device For Small-Cabliber Munition
Fuzes[M].US:Army Tank Automotive Command(TACOM)Armament Research,Development
The safety protection device of a springlock pin type is disclosed in and Engineering Center (ARDEC) Fuze Division ",
“Pezous H,Rossi C,Sanchez M,et al.Integration of a MEMS based safe arm and
Fire device [J] .Sensors and Actuators A:physical, 2010,159 (2): is then mentioned in 157-167. "
A kind of Intellectual faculties ignitor.Both safety protection devices have a common feature, i.e., all use inertia force and carry out arming, from
And make security sequence to just.
Summary of the invention
The purpose of the present invention is to provide a kind of to be applied in Fuze Safety System based on solid nitrogen microdrive
The micro- security mechanism of solid-state and the Explosive sequence based on the security mechanism.
The technical solution of the present invention is as follows: a kind of solid-state microampere protection device based on solid nitrogen microdrive, comprising:
Security laminar substrate, security laminar substrate are equipped with the cross bath for penetrating security laminar substrate；In cross bath first end
Equipped with microdrive, the two sides of the microdrive are equipped with the connected bridge being connected with base main body, the bottom end of microdrive
Equipped with gas generant composition in accordance hole, gas production charge column, the other end fluting of microdrive are placed in gas generant composition in accordance hole, slot is embedded in booster explosive；On
State the second end of the other end of microdrive by being arranged in cross bath, two sliding blocks in the 4th end are fixed, and sliding block
It is to provide pressure by the miniature pressure spring being connected on sliding block to limit microdrive；And the microdrive is equipped with
The groove that sliding block is caught in is provided under solution guarantor's state.
The shape of second end, the 4th end in above-mentioned cross bath is step.And have at the third end of cross bath
Have and accommodates the space that microdrive places gas generant composition in accordance position.
The connected bridge used in the present invention it is L=150 μm long~500 μm, d=100 μm wide~500 μm, thickness and security
Laminar substrate thickness is identical.
The gas generant composition in accordance of the solid-state microampere protection device based on solid nitrogen microdrive is used in the present invention, the gas generant composition in accordance to be with weight
Measure percentage meter, including 60-90% gas generating agent, 5-20% binder and 5-20% chemical condensing agent, wherein gas generating agent is
NaN3, binder is sodium metasilicate or potassium silicate, and chemical condensing agent is LiF.And gas generant composition in accordance is printed by ink-jet printer into production gas
In coyote hole.
The present invention provides a kind of Explosive sequence of solid-state microampere protection device based on solid nitrogen microdrive, the propagation of explosion sequence
Column include the acceleration layer being successively bonded, output medicine layer, security layer, input medicine layer, circuit layer；Wherein, the security layer is solid
State microampere protection device, the security laminar substrate of security layer are bonded in the output medicine laminar substrate of output medicine layer and input the input medicine of medicine layer
Between laminar substrate, security laminar substrate cross bath second end, the 4th end are bonded on output medicine laminar substrate and input medicine laminar substrate
Place is equipped with T-slot, output medicine laminar substrate and T-slot and cross bath second end, the flute profile at the 4th end on input medicine laminar substrate
It is identical and penetrate each self-reference substrate, it exports to be bonded on medicine laminar substrate at security laminar substrate cross bath third end and is provided with defeated medicine outlet hole simultaneously
Insertion output powder column, inputs and is provided with priming hole at bonding cross bath third end on medicine laminar substrate and is embedded in primary explosive column, defeated
It is used as medicine on laminar substrate and is additionally provided with ignition charge hole and is embedded in igniting powder column, the gas production charge column of igniting powder column and security laminar substrate is same
On axis；The bonding input priming hole of medicine laminar substrate on the circuit laminar substrate of circuit layer, be all provided at ignition charge hole it is fluted, it is recessed
Slot is embedded in the SCB containing energy, and circuit laminar substrate is equipped with copper lead and is connected with the SCB containing energy；The acceleration laminar substrate bonding of acceleration layer is defeated
It is equipped with coaxial acceleration thorax at the defeated medicine outlet hole of drug laminar substrate, accelerates the setting of thorax bottom to be used for the circular trough of built-in film flying, adds
Coaxial main loaded pill is connected at the top of fast thorax.
Acceleration layer, output medicine layer, security layer, input medicine layer, circuit layer are bonded by the way that at least four groups of screws are arranged with nut
It is fixed.
Preferably, copper lead is connect with the SCB containing energy by conductive silver paste, and copper lead is by using FeCl3Or corrosive agent is rotten
Copper-clad plate is lost to be made.
Preferably, film flying uses diameter for Φ 2-3mm, titanium sheet or stainless steel substrates with a thickness of 50 μm~200 μm.
Further, security laminar substrate uses silicon substrate or pmma substrate, and circuit laminar substrate uses copper-clad plate.
Above-mentioned copper lead is connect with the SCB containing energy by conductive silver paste.
The present invention compares compared with the existing technology, is with remarkable advantage:
1. the security mechanism is solid-state security mechanism, microdrive is connect by being connected bridge with silicon substrate main body, is one whole
Body structure, connected bridge play a part of fixed microdrive, thus the effect solution for needing not rely on environmental forces is protected, and only need to make to be connected
Bridge fracture can arming not by the constraint of environmental forces improve the reliability of safety protection device.
2. microdrive, connected bridge and silicon substrate main body use overall structure, thus in terms of the production of security mechanism more
For simplicity, and simplify assembling process.
3. step structure is used in pressure spring and sliding block junction, and sliding block is stuck on microdrive top, then is pressing
Spring axial direction, no matter axial acceleration is much, pressure spring, sliding block and microdrive top will not be subjected to displacement, and guarantee to understand
Before protecting connected bridge will not due to axial acceleration fracture failure.
4. it is close with biggish energy that the burning of the energetic material used is compared to the driving methods such as electromagnetic type, electrostatic
Degree, uses pneumatic mode that can complete biggish displacement with lesser volume.
5. in the detonation sequence of partition-type, the advantages of using in-line arrangement Explosive sequence, film flying is added and accelerates thorax structure,
The fan-out capability that output medicine can be improved is easier to ignite desensitized explosive, to realize that the input of smaller energy and bigger energy are defeated
Purpose out.
6. Explosive sequence of the invention is miniature Explosive sequence, volume≤1.2cm of entire Explosive sequence3, so as to
Be applied to microminiature detonator in, constitute can various ways detonation detonation array.
Detailed description of the invention
Fig. 1 is the security layer perspective view the present invention is based on the solid-state security mechanism of solid nitrogen microdrive；
Fig. 2 is that the present invention is based on the hierarchical diagrams of the Explosive sequence of solid-state security mechanism；
Fig. 3 is that the present invention is based on the structures of the security layer of the solid-state security mechanism of solid nitrogen microdrive effect front and back
Figure；
Fig. 4 is the security laminar substrate perspective view the present invention is based on the solid-state security mechanism of solid nitrogen microdrive；
Fig. 5 is the security laminar substrate amagnified partial perspective the present invention is based on the solid-state security mechanism of solid nitrogen microdrive
Figure；
Fig. 6 is the bonding perspective view the present invention is based on the Explosive sequence of solid-state security mechanism；
Fig. 7 is the circuit layer plan view the present invention is based on the Explosive sequence of solid-state security mechanism；
Fig. 8 is the input medicine layer plane figure the present invention is based on the Explosive sequence of solid-state security mechanism；
Fig. 9 is the output medicine layer plane figure the present invention is based on the Explosive sequence of solid-state security mechanism；
Figure 10 is the acceleration layer bottom plan view the present invention is based on the Explosive sequence of solid-state security mechanism；
Figure 11 is that the present invention is based on the partial cutaway views of the Explosive sequence of solid-state security mechanism.
Wherein, 1 security laminar substrate, 2 microdrives, 3 gas production charge columns, 4 booster gains, 5, miniature pressure spring, 6 bayonet locks, 7 spiral shells
Hole, 8 connected bridges, 9 circuit laminar substrates, 10 bronze medal leads, 11, SCB transducing member, 12 input medicine laminar substrates, 13 igniting powder columns, 14 detonations
Powder column, 15T shape slot, 16 output medicine laminar substrates, 17 output powder columns, 18 film flyings, 19 acceleration layers, 20 accelerate thorax, 21 main loaded pills, 22
Screw, 23 nuts, 24 circular troughs, the first end of 25 cross baths, the second end of 26 cross baths, the third of 27 cross baths
It holds, the 4th end of 28 cross baths.
Specific embodiment
The following examples can make those skilled in the art that the present invention be more fully understood, but not limit in any way
The present invention.
In conjunction with Fig. 1,2, the present invention is based on the solid-state microampere protection devices of solid nitrogen microdrive, and structure includes: security
Laminar substrate 1, security laminar substrate 1 are equipped with the cross bath for penetrating security laminar substrate 1；Micro- drive is equipped in cross bath first end 25
Dynamic device 2, the two sides of the microdrive 2 are equipped with the connected bridge 8 being connected with base main body 1, and the bottom end of microdrive 2 is equipped with
Gas generant composition in accordance hole, gas production charge column 3, the other end fluting of microdrive 2 are placed in gas generant composition in accordance hole, and slot is embedded in booster explosive 4；It is above-mentioned
Second end 26 of the other end of microdrive 2 by being arranged in cross bath, two sliding blocks 6 in the 4th end 28 are fixed, and
Sliding block 6 is to provide pressure by the miniature pressure spring 5 being connected on sliding block 6 to limit microdrive 2；And the micro-move device
Device 2 is equipped with and provides the groove that sliding block 6 is caught in the case where solving guarantor's state.
Security laminar substrate 1 uses poly (methyl methacrylate) plate or silicon substrate in above-mentioned security mechanism.
1 size of security laminar substrate in above-mentioned security mechanism are as follows: length × width x thickness=16 × 13 × 0.5mm.
The outer diameter of miniature pressure spring 5 is 1.5mm, length 3mm in above-mentioned security mechanism.
The shape of second end 26, the 4th end 28 in above-mentioned security mechanism in cross bath is step.
Above-mentioned connected bridge 8 it is L=150 μm long~500 μm, d=100 μm wide~500 μm, thickness and security laminar substrate 1 are thick
Degree is mutually all 500 μm.
The aperture of booster explosive 4 is 1mm in above-mentioned security mechanism.
The aperture of gas generant composition in accordance 3 is 1.6mm in above-mentioned security mechanism.
In above-mentioned gas generant composition in accordance 3 by weight percentage, including 60-90% gas generating agent, 5-20% binder and 5-
20% chemical condensing agent, wherein gas generating agent is NaN3, binder is alkali silicate, preferably sodium metasilicate or potassium silicate, chemistry
Condensing agent is LiF.
Above-mentioned gas generant composition in accordance 3 carries out powder charge by ink-jet printer.
In conjunction with Fig. 4, the mechanism of solid-state micro- security mechanism of the present invention based on solid nitrogen microdrive includes
Following steps:
Step 1: gas production charge column 3 is ignited, NaN3It is thermally decomposed, generates gas.
Step 2: gas acutely expands in gas generant composition in accordance room, microdrive 2 is pushed to move forward, but since both ends are connected
The gas pressure when effect of contraction of bridge 8 and beginning is insufficient, and microdrive 2 can not be displaced, and the bridge 8 that is connected bends change
Type.
Step 3: the bridge 8 that is connected bears not living the pulling force of microdrive 2 after the pressure in gas generant composition in accordance room reaches certain value,
Brittle fracture occurs, microdrive 2 is detached from security laminar substrate 1, travels forward.
Step 4: when microdrive 2 moves to cross bath third end 27, the sliding blocks 6 of two sides is recessed with microdrive 2
To just, sliding block 6 is pushed into the groove of microdrive 2 slot by miniature pressure spring 5, and microdrive 2 is stuck.At this point, on microdrive 2
Booster explosive 4 and lower section primary explosive column 14 to just, safety protection device is in solution guarantor's state.
In conjunction with Fig. 3~9,11, the present invention is based on the Explosive sequence of solid-state microampere protection device, structure includes: the propagation of explosion sequence
Column include the acceleration layer being successively bonded, output medicine layer, security layer, input medicine layer, circuit layer；Wherein, the security layer is solid
State microampere protection device, the security laminar substrate 1 of security layer are bonded in the output medicine laminar substrate 16 for exporting medicine layer and input the defeated of medicine layer
It is used as medicine between laminar substrate 12, is bonded 1 cross bath of security laminar substrate the with inputting on medicine laminar substrate 12 in output medicine laminar substrate 16
T-slot 15, T-slot 15 and cross on output medicine laminar substrate 16 and input medicine laminar substrate 12 are equipped at two ends 26, the 4th end 28
Shape slot second end 26, the flute profile at the 4th end 28 is identical and penetrates each self-reference substrate, exports and is bonded security laminar substrate 1 on medicine laminar substrate 1
It is provided with defeated medicine outlet hole at cross bath third end 27 and is embedded in output powder column 1, inputs bonding cross bath the on medicine laminar substrate 12
It is provided with priming hole at three ends and is embedded in primary explosive column 14, inputs and is additionally provided with ignition charge hole on medicine laminar substrate 12 and is embedded in ignition charge
The gas production charge column 3 of column 13, igniting powder column 13 and security laminar substrate 1 is on the same axis；It is bonded on the circuit laminar substrate 9 of circuit layer
Input the priming hole of medicine laminar substrate 12, be all provided at ignition charge hole it is fluted, groove be embedded in containing can SCB11, circuit laminar substrate 9
Copper lead 10 is equipped with to be connected with the SCB11 containing energy；The output medicine for accelerating the bonding output medicine laminar substrate 16 of laminar substrate 19 of acceleration layer
It is equipped with coaxial acceleration thorax 20 at hole, the setting of 20 bottom of thorax is accelerated to be used for the circular trough 24 of built-in film flying 18, accelerates 20 top of thorax
Connect coaxial main loaded pill 21.
Acceleration layer, output medicine layer, security layer, input medicine layer, circuit layer pass through setting at least four groups of screws 22 and nut 23
By the screw hole 7 of each layer, each layer is bonded to together, constitutes a complete detonation sequence.
Foregoing circuit laminar substrate 9 uses copper-clad plate.
Above-mentioned copper lead 10 is by using FeCl3Or corrosive agent corrosion copper-clad plate obtains.
Above-mentioned copper lead 10 is connect with the SCB11 containing energy by conductive silver paste.
Above-mentioned igniting powder column 13 is using the black powder with gas deliverability.
Above-mentioned primary explosive column 14 uses nitrine porous nickel.
Above-mentioned booster gains 4 uses lead azide.
Above-mentioned output powder column 17 uses HNS-IV.
Above-mentioned film flying 18 uses diameter for Φ 3, titanium sheet or stainless steel substrates with a thickness of 50 μm~200 μm.
Above-mentioned main loaded pill 21 uses TATB.
In conjunction with Fig. 3~9, the mechanism of the Explosive sequence based on the micro- security mechanism of solid-state are as follows:
It is under fire step 1: being powered with igniting powder column 13 to positive SCB11 in circuit laminar substrate 9, lights input medicine laminar substrate
12 igniting powder column 13.
Step 2: igniting powder column 13 lights the gas generant composition in accordance 3 of security laminar substrate 1.
Step 3: safety protection device acts on, it is in uninsured state.
It is under fire step 4: being powered with priming 14 to positive SCB11 in circuit laminar substrate 9, ignites rising for input medicine layer 12
Quick-fried medicine 14, priming 14 are ignited on security layer to positive booster gains 4, and booster gains 4 ignites the defeated of output medicine laminar substrate 16 again
Powder column 17 out.
Step 5: output 17 impact shear of powder column is built in the film flying 18 in acceleration layer, as shown in Figure 10, film flying 18 is adding
Accelerate in the acceleration thorax 20 of fast layer 19.
Step 6: the 18 Impact Initiation main loaded pill 21 of film flying after accelerating.
Claims (9)
1. a kind of solid-state microampere protection device based on solid nitrogen microdrive characterized by comprising
Security laminar substrate (1), security laminar substrate (1) are equipped with the cross bath for penetrating security laminar substrate (1)；Cross bath first
It holds in (25) and is equipped with microdrive (2), the two sides of the microdrive (2) are equipped with the connected bridge being connected with base main body
(8), the bottom end of microdrive (2) is equipped with gas generant composition in accordance hole, is placed with gas production charge column (3) in gas generant composition in accordance hole, microdrive (2) it is another
One end fluting, slot are embedded in booster gains (4)；The other end of above-mentioned microdrive (2) by be arranged in cross bath
Two sliding blocks (6) in two ends (26), the 4th end (28) are fixed, and sliding block (6) is the miniature pressure by being connected on sliding block (6)
Spring (5) provides pressure and limits to microdrive (2)；And the microdrive (2) is equipped with and provides cunning in the case where solving guarantor's state
The groove that block (6) is caught in.
2. the solid-state microampere protection device according to claim 1 based on solid nitrogen microdrive, which is characterized in that described
Cross bath in second end (26), the shape at the 4th end (28) be step.
3. the solid-state microampere protection device according to claim 1 based on solid nitrogen microdrive, which is characterized in that cross
The third end (27) of shape slot, which has, accommodates the space that microdrive (2) place gas generant composition in accordance position.
4. the solid-state microampere protection device according to claim 1 based on solid nitrogen microdrive, which is characterized in that be connected
Bridge (8) it is L=150 μm long~500 μm, d=100 μm wide~500 μm, thickness is identical as security laminar substrate (1) thickness.
5. a kind of biography based on the described in any item solid-state microampere protection devices based on solid nitrogen microdrive of claim 1-4
Quick-fried sequence, which is characterized in that the Explosive sequence includes the acceleration layer being successively bonded, output medicine layer, security layer, input medicine layer, electricity
Road floor；Wherein, the security layer is solid-state microampere protection device, and the security laminar substrate (1) of security layer is bonded in output medicine layer
It exports medicine laminar substrate (16) and inputs between the input medicine laminar substrate (12) of medicine layer, in output medicine laminar substrate (16) and input medicine layer
It is bonded security laminar substrate (1) cross bath second end (26) on substrate (12), is equipped with T-slot (15) at the 4th end (28), output
Medicine laminar substrate (16) and T-slot (15) and cross bath second end (26), the 4th end (28) in input medicine laminar substrate (12)
Flute profile is identical and penetrates each self-reference substrate, and security laminar substrate (1) cross bath third end (27) is bonded in output medicine laminar substrate (16)
Place is provided with defeated medicine outlet hole and is embedded in output powder column (17), is bonded at cross bath third end and has been provided in input medicine laminar substrate (12)
Quick-fried medicine hole is simultaneously embedded in primary explosive column (14), and ignition charge hole is additionally provided in input medicine laminar substrate (12) and is embedded in igniting powder column (13),
The gas production charge column (3) of igniting powder column (13) and security laminar substrate (1) is on the same axis；On the circuit laminar substrate (9) of circuit layer
Be all provided at the bonding input priming hole of medicine laminar substrate (12), ignition charge hole it is fluted, groove be embedded in containing can SCB (11), electricity
Road laminar substrate (9) is equipped with copper lead (10) and is connected with the SCB containing energy (11)；Acceleration laminar substrate (19) the bonding output medicine of acceleration layer
It is equipped with coaxial acceleration thorax (20) at the defeated medicine outlet hole of laminar substrate (16), the setting of thorax (20) bottom is accelerated to be used for built-in film flying (18)
Circular trough (24), accelerate to connect coaxial main loaded pill (21) at the top of thorax (20).
6. Explosive sequence according to claim 5, which is characterized in that the acceleration layer, output medicine layer, security layer, defeated
Be used as medicine layer, circuit layer by setting at least four groups of screws (22) with nut (23) is bonded fixation.
7. Explosive sequence according to claim 5, which is characterized in that copper lead (10) passes through conduction with the SCB containing energy (11)
Silver paste connection.
8. Explosive sequence according to claim 5, which is characterized in that film flying (18) uses diameter for Φ 2-3mm, with a thickness of
50 μm~200 μm of titanium sheet or stainless steel substrates.
9. Explosive sequence according to claim 5, which is characterized in that security laminar substrate (1) uses silicon substrate or organic glass
Glass substrate, circuit laminar substrate (9) use copper-clad plate.
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| CN113218257B (en) * | 2020-01-21 | 2022-10-04 | 北京理工大学重庆创新中心 | Embedded electromagnetic drive planar MEMS safety system and control method thereof |
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| CN104315929B (en) * | 2014-09-17 | 2015-12-09 | 西安交通大学 | A kind of MEMS weapon safety protection device |
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