CN103256868B - Integrated grounding piezoelectric fuze - Google Patents
Integrated grounding piezoelectric fuze Download PDFInfo
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- CN103256868B CN103256868B CN201310172651.4A CN201310172651A CN103256868B CN 103256868 B CN103256868 B CN 103256868B CN 201310172651 A CN201310172651 A CN 201310172651A CN 103256868 B CN103256868 B CN 103256868B
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Abstract
The invention relates to an integrated grounding piezoelectric fuze. The integrated grounding piezoelectric fuze comprises a signal processing circuit module, a signal output assembly, a shell, piezoelectric plates, a pre-tightening ring, an inertial mass block, insulating sheets, lead wire sheets, a positioning ring, lead wires, a pressing ring and an upper cover, wherein the signal processing circuit module is sealed inside the shell through an insulating damping material and is placed above the pressing ring; the pre-tightening ring is located between the pressing ring and the inertial mass block; two insulating sheets are arranged below the inertial mass block; the piezoelectric plates and the lead wire sheets are arranged between the two insulating sheets; signals of the piezoelectric plates are led out through the lead wire sheets connected with positive poles and negative poles of the piezoelectric plates; the signal processing circuit module and the lead wire sheets are connected through the lead wires; the signal output assembly is connected with the signal processing circuit module; and the signal processing circuit module comprises a comparator standard adjusting circuit, a comparing circuit, a silicon controlled rectifier Q1 and a standard source. The fuze has the characteristics of high reliability, fast response, small size, small weight, strong anti-impact capability and the like.
Description
Technical field
The present invention relates to a kind of integration to contact to earth piezoelectric fuze, belong to sensor technical field.
Background technology
Fuse is the important component part of ammunition, and it utilizes environmental information and target information, igniting in predefined conditions or the control device of the warhead charge that ignites, for controlling the Detonating Time of warhead charge, warhead being played one's part to the full to target.Fuse of a great variety, by the mode of action and principle, roughly can be divided into three major types, i.e. contact fuze, time faze and influence fuse.Wherein to remain use the most general for contact fuze, and in all weapon models, demand is very extensive at present.
Impact type piezoelectric fuze is primarily of piezoelectric transducer and signal processing circuit composition, and they form flip flop equipment jointly.Piezoelectric transducer is all generally be made up of piezoelectric ceramics and mass; Signal processing circuit is used for processing, judging and transmit the signal of telecommunication, and ensures that bullet is in duties process and aloft safety, action message during collision target.
Old-fashioned split type product is contained in different products due to piezoelectric transducer and signal processing circuit respectively, and use longer low noise cable to be interconnected, the volume of a whole set of trigger switch and quality are all larger; When producing, piezoelectric transducer, electronic switch carry out joining a joint-trial after need testing examination respectively, and user also needs pairing to use.For user, employing split designs, there is the shortcomings such as inconvenient, installation steps are relatively loaded down with trivial details in use, there is the cable connecting link of sensor to electronic switch in Split type structure simultaneously, add unreliable factor, in use just may because the problems such as connector loose contact, fifth wheel and connector spring failure produce fault, even and if employ low noise cable and connect but the impact of inevitably bringing interference too into.
Summary of the invention
The object of the invention is to the above-mentioned defect overcoming prior art, a kind of integration is provided to contact to earth piezoelectric fuze, the multi-direction impact signal that contacts to earth can be picked up, this fuse has the features such as reliability is high, response is fast, volume is little, quality is little, strong shock resistance, can be applied to the military domain of high reliability request.
Above-mentioned purpose of the present invention is mainly achieved by following technical solution:
Integration is contacted to earth piezoelectric fuze, comprise signal processing circuit module, signal component output, housing, piezoelectric patches, preload ring, inertial mass, insulating trip, lead wire, locating ring, lead-in wire, pressure ring and upper cover, wherein signal processing circuit module passes through the embedding of insulated damping material in enclosure interior, and be placed in above pressure ring, preload ring is between pressure ring and inertial mass, two insulating trips are set below inertial mass, between two insulating trips, piezoelectric patches and lead wire are set, wherein the signal of piezoelectric patches is drawn by the lead wire be connected on piezoelectric patches both positive and negative polarity, signal processing circuit module is connected by going between with between lead wire, signal component output be fixedly mounted on cover and with signal processing circuit model calling.
Contact to earth in piezoelectric fuze in above-mentioned integration, signal processing circuit module comprises comparator reference Circuit tuning, comparison circuit, controllable silicon Q1, a reference source module and output resistance R9, wherein comparator reference Circuit tuning comprises resistance R1, R2, R3, R4, R5, R6, diode D1, comparison circuit comprises comparator and resistance R7, R8, a reference source module comprises a reference source, electric capacity C1, C2, wherein resistance R3 and resistance R4, R5, any one series connection in R6, resistance R1 connects with resistance R2, and diode D1 is in parallel with resistance R2, the trigger end of comparator and resistance R1, the common port of R2 is connected, the reference edge of comparator and resistance R3, R4, R5, the common port of R6 is connected, resistance R7 respectively with the output of comparator, the positive pole of comparator is connected, the minus earth of comparator, and resistance R8 is connected with the output of comparator and the control end of controllable silicon Q1 respectively, a reference source and external power supply, comparator positive pole, the input of controllable silicon Q1 is connected, and electric capacity C1 one end is connected with the output of a reference source, other end ground connection, and electric capacity C2 one end is connected with the external power supply of a reference source, other end ground connection, and resistance R9 one end is connected with the output of controllable silicon Q1, other end ground connection.
Contact to earth in piezoelectric fuze in above-mentioned integration, when the number n of the piezoelectric patches arranged between two insulating trips is 2, lead wire is a single lead wire and a double lead sheet, and when the number n of the piezoelectric patches arranged between two insulating trips is the even number being greater than 2, lead wire is n-1 double lead sheet.
Contact to earth in piezoelectric fuze in above-mentioned integration, signal component output adopts coaxial cable, and adopts the mode of embedding to be fixed on to cover.
Contact to earth in piezoelectric fuze in above-mentioned integration, piezoelectric patches, preload ring, inertial mass, insulating trip, lead wire, locating ring, lead-in wire and pressure ring are coaxially arranged in housing, form piezoelectric transducer, have employed circumferential compression structure.
Contact to earth in piezoelectric fuze in above-mentioned integration, preload ring Lower Half is indent spherical structure, and the inertial mass first half is the evagination spherical structure matched with preload ring, can experience the impact signal that contacts to earth of multiple directions.
Contact to earth in piezoelectric fuze in above-mentioned integration, inertial mass adopts proportion to be more than or equal to the alloy of 17.4g/cm3.
Contact to earth in piezoelectric fuze in above-mentioned integration, preload ring, to be installed by screw thread between pressure ring and housing.
Contact to earth in piezoelectric fuze in above-mentioned integration, insulated damping material is silicon rubber, and piezoelectric patches is piezoelectric ceramic piece.
The present invention compared with prior art tool has the following advantages:
(1), the present invention has carried out innovative design to piezoelectric fuze structure, piezoelectric transducer and circuits for triggering are made of one, substantially reduce overall volume and quality, simultaneously owing to eliminating the stube cable between piezoelectric fuze and circuits for triggering, eliminate the various interference because cable brings and significantly reduce charge loss;
(2), the present invention has carried out brand-new design to the circuits for triggering of piezoelectric fuze structure, adopt by the circuit structure comprising comparator reference Circuit tuning, comparison circuit, controllable silicon Q1, a reference source form, replace controllable silicon as trigger element owing to have employed the good comparator of temperature performance, substantially reduce the debugging efforts that the temperature drift problems that exports due to piezoelectric ceramic piece brings;
(3), piezoelectric fuze structure of the present invention is owing to adopting insulated damping material encapsulation type structure, thus solve the circuit protection problem of piezoelectric fuze when being subject to macro-energy and impacting, and adopt edgewise compressive structure, the present invention still can normally be worked under the impact condition of 100000g;
(4), in piezoelectric fuze structure of the present invention, preload ring Lower Half is indent spherical structure, the inertia mass first half is the evagination spherical structure matched with preload ring, the impact signal of vertical piezoelectric fuze major axes orientation can be experienced, the angle that contacts to earth reach ± 70 degree time still can triggered as normal;
(5), piezoelectric fuze structure of the present invention adopts unitary design, product has that structure is simple, volume is little, lightweight, reliable operation, response time are fast, strong shock resistance, the feature such as easy to install, can 100,000 g contact to earth impact under triggered as normal, be widely used in military field.
Accompanying drawing explanation
Fig. 1 is the present invention's integration piezoelectric fuze section of structure;
Fig. 2 is signal processing circuit modular structure schematic diagram in the present invention's integration piezoelectric fuze;
Fig. 3 is the circuit theory diagrams of signal processing circuit module in the present invention's integration piezoelectric fuze;
Fig. 4 a is that in the present invention's integration piezoelectric fuze, piezoelectric patches and lead wire install relation schematic diagram 1(piezoelectric patches number is 2);
Fig. 4 b is that in the present invention's integration piezoelectric fuze, piezoelectric patches and lead wire install relation schematic diagram 2(piezoelectric patches number is 4);
Fig. 4 c is that in the present invention's integration piezoelectric fuze, piezoelectric patches and lead wire install relation schematic diagram 3(piezoelectric patches number is 6).
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Be illustrated in figure 1 the present invention's integration piezoelectric fuze section of structure, the integration of the anti-HI high impact of the present invention piezoelectric fuze that contacts to earth comprises signal processing circuit module 1, signal component output 2, housing 3, piezoelectric patches 4, preload ring 5, inertial mass 6, insulating trip 7, lead wire 8, locating ring 9, lead-in wire 10, pressure ring 11 and upper cover 12, and wherein piezoelectric patches 4 is piezoelectric ceramic piece.
Signal processing circuit module 1 is inner in housing 3 by the embedding of insulated damping material, and be placed in above pressure ring 11, insulated damping material can select silicon rubber.Preload ring 5 is between pressure ring 11 and inertial mass 6, preload ring 5 Lower Half is indent spherical structure, inertia mass 6 first half is the evagination spherical structure matched with preload ring 5, and can experience the impact signal that contacts to earth of multiple directions, inertia mass 6 adopts proportion to be more than or equal to 17.4g/cm
3high-density alloy, there is higher sensitivity.Preload ring 5, between pressure ring 11 and housing 3, be all threaded connection installation.
As shown in Figure 1, two insulating trips 7 are set below inertial mass 6, piezoelectric patches 4 and lead wire 8 are set between two insulating trips 7, wherein the signal of piezoelectric patches 4 is drawn by the lead wire 8 be connected on piezoelectric patches 4 both positive and negative polarity, is connected between signal processing circuit module 1 with lead wire 8 by lead-in wire 10.When the number n of the piezoelectric patches 4 arranged between two insulating trips 7 is 2, lead wire 8 is a single lead wire and a double lead sheet, as shown in fig. 4 a (Fig. 4 a is the partial enlarged drawing of Fig. 1), wherein single lead wire is the lead wire having a link, double lead sheet is the lead wire having two links, i.e. U-shaped lead wire.When the number n of the piezoelectric patches 4 arranged between two insulating trips 7 is the even number being greater than 2, lead wire 8 is double lead sheet, and the quantity of lead wire 8 is n-1, such as, when the number of piezoelectric patches 4 is 4, has 3 U-shaped double lead sheets, as shown in Figure 4 b; When the number of piezoelectric patches 4 is 6, there are 5 U-shaped double lead sheets, as illustrated in fig. 4 c.When Fig. 4 gives that in the present invention's integration piezoelectric fuze, the number of piezoelectric patches 4 is 2,4,6, piezoelectric patches and lead wire install relation schematic diagram.
In addition signal component output 2 adopts coaxial cable, and adopts the mode of embedding to be fixedly mounted on upper cover 12, and synchronous signal output precision 2 is connected with signal processing circuit module 1.
Piezoelectric ceramic piece 4, preload ring 5, inertia mass 6, insulating trip 7, lead wire 8, locating ring 9, lead-in wire 10 and pressure ring 11 are coaxially arranged in housing 3, and composition piezoelectric transducer, adopts edgewise compressive structure.Its function is that the information of the angle of entry being touched target is converted into the signal of telecommunication rapidly, is transferred to signal processing circuit module 1.Inertial mass 6, piezoelectric ceramic piece 4, housing 3 and preload ring 5 form a spring mass system, inertial mass 6 acceleration is approximately equal to tested vibratory impulse acceleration within the specific limits, piezoelectric ceramic piece 4 produces strain by the effect of inertial mass 6 inertia force, and then produces the output of corresponding charge signal by piezoelectric ceramic piece 4.Locating ring 9 is positioners of piezoelectric ceramic piece 4, and its effect supports piezoelectric ceramic piece 4 and locates; Preload ring 5 adopts with sensor housing 3 and is threaded, and applies pressure to inertial mass 6 and piezoelectric ceramic piece 4, makes piezoelectric ceramic piece 4 be in pressured state all the time, and the screw-down torque of preload ring 5 is determined according to the yield strength of material, as far as possible greatly; Inertial mass 6 adopts high-density alloy; Pressure ring 11 adopts with sensor housing 3 and is threaded, and is fixed on preload ring 5, for locking; Lead wire 8 is metal material, is mounted on piezoelectric ceramic piece 4 both sides, and each lead wire 8 is all welded with wire 10, and its function is sent in signal processing circuit module 1 by the charge signal that piezoelectric ceramic piece 4 produces; Insulating trip 7 is assemblied in outside lead wire 8 and electroceramics sheet 4 respectively, and its function is that the charge signal produced by piezoelectric ceramic piece 4 is kept apart with other metal parts etc., prevents charge signal from revealing.Sensor housing 3 adopts the overall milling of metal material to become, and ensures mechanical strength and Electro Magnetic Compatibility.
Be illustrated in figure 2 signal processing circuit modular structure schematic diagram in the present invention's integration piezoelectric fuze, signal processing circuit 1 forms primarily of comparator reference Circuit tuning, comparison circuit, controllable silicon, a reference source and output resistance R9.And its function is that the various information of sensor input are carried out processing, judging and produce detonator signal fast.Wherein the effect of benchmark Circuit tuning is, will be supplied to the stable reference level of comparator one after the voltage signal dividing potential drop of a reference source, and by the criterion whether this level triggers as switch; The effect of comparison circuit is, the controllable silicon poor to temperature performance provides triggering signal; The effect of controllable silicon Q1 is, keeps conducting state after experiencing triggering signal, and detonator signal a reference source provided continues to be sent to next stage system; The effect of a reference source is, for all components and parts provide stable level.Output resistance R9 produces output signal dividing potential drop.
Be illustrated in figure 3 the circuit theory diagrams of signal processing circuit module in the present invention's integration piezoelectric fuze, as seen from the figure, comparator reference Circuit tuning comprises resistance R1, R2, R3, R4, R5, R6, diode D1, comparison circuit comprises comparator and resistance R7, R8, a reference source module comprises a reference source, electric capacity C1, C2, wherein resistance R3 and resistance R4, R5, any one series connection in R6, resistance R1 connects with resistance R2, and diode D1 is in parallel with resistance R2, the trigger end of comparator and resistance R1, the common port of R2 is connected, the reference edge of comparator and resistance R3, R4, R5, the common port of R6 is connected, resistance R7 respectively with the output of comparator, the positive pole of comparator is connected, the minus earth of comparator, and resistance R8 is connected with the output of comparator and the control end of controllable silicon Q1 respectively, a reference source and external power supply, comparator positive pole, the input of controllable silicon Q1 is connected, and electric capacity C1 one end is connected with the output of a reference source, other end ground connection, and electric capacity C2 one end is connected with the external power supply of a reference source, other end ground connection, and resistance R9 one end is connected with the output of controllable silicon Q1, other end ground connection.
Piezoelectric fuze structure of the present invention adopts unitary design, product has that structure is simple, volume is little, lightweight, reliable operation, response time are fast, strong shock resistance, the feature such as easy to install, can 100,000 g contact to earth impact under triggered as normal, be widely used in military field.
The above; be only the detailed description of the invention of the best of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
The content be not described in detail in description of the present invention belongs to the known technology of professional and technical personnel in the field.
Claims (9)
1. integration is contacted to earth piezoelectric fuze, it is characterized in that: comprise signal processing circuit module (1), signal component output (2), housing (3), piezoelectric patches (4), preload ring (5), inertial mass (6), insulating trip (7), lead wire (8), locating ring (9), lead-in wire (10), pressure ring (11) and upper cover (12), wherein signal processing circuit module (1) is inner in housing (3) by the embedding of insulated damping material, and be placed in pressure ring (11) top, preload ring (5) is positioned between pressure ring (11) and inertial mass (6), inertial mass (6) below arranges two insulating trips (7), piezoelectric patches (4) and lead wire (8) are set between two insulating trips (7), wherein the signal of piezoelectric patches (4) is drawn by the lead wire (8) be connected on piezoelectric patches (4) both positive and negative polarity, be connected by go between (10) between signal processing circuit module (1) with lead wire (8), signal component output (2) is fixedly mounted on upper cover (12) and goes up and be connected with signal processing circuit module (1).
2. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described signal processing circuit module (1) comprises comparator reference Circuit tuning, comparison circuit, controllable silicon Q1, a reference source module and output resistance R9, wherein comparator reference Circuit tuning comprises resistance R1, R2, R3, R4, R5, R6, diode D1, comparison circuit comprises comparator and resistance R7, R8, a reference source module comprises a reference source, electric capacity C1, C2, wherein resistance R3 and resistance R4, R5, any one series connection in R6, resistance R1 connects with resistance R2, and diode D1 is in parallel with resistance R2, the trigger end of comparator and resistance R1, the common port of R2 is connected, the reference edge of comparator and resistance R3, R4, R5, the common port of R6 is connected, resistance R7 respectively with the output of comparator, the positive pole of comparator is connected, the minus earth of comparator, and resistance R8 is connected with the output of comparator and the control end of controllable silicon Q1 respectively, a reference source and external power supply, comparator positive pole, the input of controllable silicon Q1 is connected, and electric capacity C1 one end is connected with the output of a reference source, other end ground connection, and electric capacity C2 one end is connected with the external power supply of a reference source, other end ground connection, and resistance R9 one end is connected with the output of controllable silicon Q1, other end ground connection.
3. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: when the number n of the piezoelectric patches (4) arranged between two insulating trips (7) is 2, lead wire (8) is a single lead wire and a double lead sheet, when the number n of the piezoelectric patches (4) arranged between two insulating trips (7) is the even number being greater than 2, lead wire (8) is n-1 double lead sheet.
4. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described signal component output (2) adopts coaxial cable, and adopts the mode of embedding to be fixed on upper cover (12).
5. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described piezoelectric patches (4), preload ring (5), inertial mass (6), insulating trip (7), lead wire (8), locating ring (9), lead-in wire (10) and pressure ring (11) are coaxially arranged in housing (3), form piezoelectric transducer, have employed circumferential compression structure.
6. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described preload ring (5) Lower Half is indent spherical structure, inertial mass (6) first half is the evagination spherical structure matched with preload ring (5), can experience the impact signal that contacts to earth of multiple directions.
7. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described inertial mass (6) adopts proportion to be more than or equal to the alloy of 17.4g/cm3.
8. integration according to claim 1 is contacted to earth piezoelectric fuze, it is characterized in that: described preload ring (5), installed by screw thread between pressure ring (11) and housing (3).
9. integration according to claim 1 is contacted to earth piezoelectric fuze, and it is characterized in that: described insulated damping material is silicon rubber, described piezoelectric patches (4) is piezoelectric ceramic piece.
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| CN201310172651.4A CN103256868B (en) | 2013-05-10 | 2013-05-10 | Integrated grounding piezoelectric fuze |
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| CN201310172651.4A CN103256868B (en) | 2013-05-10 | 2013-05-10 | Integrated grounding piezoelectric fuze |
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| CN103256868B true CN103256868B (en) | 2014-12-17 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266745A (en) * | 2014-09-28 | 2015-01-07 | 中国船舶重工集团公司第七一〇研究所 | Integrated vibration sensor |
| CN106645866A (en) * | 2016-10-25 | 2017-05-10 | 清华大学 | Conduction current and space charge synchronization measurement device |
| CN107270788B (en) * | 2017-06-29 | 2023-06-27 | 中国工程物理研究院电子工程研究所 | Sensor redundancy type trigger fuze |
| CN107748385A (en) * | 2017-11-10 | 2018-03-02 | 河北中核岩土工程有限责任公司 | Shearing wave focus and cross hole method wave velocity testing method in a kind of hole |
| CN108645547B (en) * | 2018-03-30 | 2020-12-18 | 北京遥测技术研究所 | Perimeter compression floating piezoelectric sensor for touchdown credit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998163A (en) * | 1962-02-06 | 1976-12-21 | James Gary Nelson | Lucky-in-base fuze assembly |
| CN101034156A (en) * | 2007-01-25 | 2007-09-12 | 西安交通大学 | Piezoelectric infrasonic wave sensor capable of canceling mechanical oscillation signal |
| CN101082474A (en) * | 2006-05-31 | 2007-12-05 | 中国科学院沈阳自动化研究所 | Fuze pressure firing device |
| CN101162182A (en) * | 2007-11-20 | 2008-04-16 | 唐德尧 | Magnetically mounted vibration impact transducer |
| CN201893288U (en) * | 2010-11-30 | 2011-07-06 | 常州曼淇威压力控制技术有限公司 | Resistance pressure controller |
-
2013
- 2013-05-10 CN CN201310172651.4A patent/CN103256868B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998163A (en) * | 1962-02-06 | 1976-12-21 | James Gary Nelson | Lucky-in-base fuze assembly |
| CN101082474A (en) * | 2006-05-31 | 2007-12-05 | 中国科学院沈阳自动化研究所 | Fuze pressure firing device |
| CN101034156A (en) * | 2007-01-25 | 2007-09-12 | 西安交通大学 | Piezoelectric infrasonic wave sensor capable of canceling mechanical oscillation signal |
| CN101162182A (en) * | 2007-11-20 | 2008-04-16 | 唐德尧 | Magnetically mounted vibration impact transducer |
| CN201893288U (en) * | 2010-11-30 | 2011-07-06 | 常州曼淇威压力控制技术有限公司 | Resistance pressure controller |
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