CN202221280U - Digital delayed electronic blasting cap - Google Patents
Digital delayed electronic blasting cap Download PDFInfo
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- CN202221280U CN202221280U CN2011202974096U CN201120297409U CN202221280U CN 202221280 U CN202221280 U CN 202221280U CN 2011202974096 U CN2011202974096 U CN 2011202974096U CN 201120297409 U CN201120297409 U CN 201120297409U CN 202221280 U CN202221280 U CN 202221280U
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Abstract
The utility model relates to a digital delayed electronic blasting cap; the digital delayed electronic blasting cap comprises a shell which is provided with an energy gathering cavity and a seal plug, wherein the inner section of the shell is sequentially filled with main charge, booster explosive, triple fixing explosive, a first reinforcing cap, igniting booster explosive and a second reinforcing cap from interior to exterior; the outer section of the shell is packaged with a delayed detonation control circuit whose output ends are connected with igniting charge ends; and the delayed detonation control circuit comprises a programmable delayed chip, a crystal oscillating circuit, a detonating capacitor, an electronic switch, a detonating sequential detection circuit, a blasting cap parameter transmitting circuit, a first voltage-stabilizing circuit, a second voltage-stabilizing circuit, an ID code verifying circuit for verifying the identity of the detonator, a detonating password for safety verification and a self-checking password verifying circuit. The digital delayed electronic blasting cap provided by the utility model has high delay accuracy and good consistency, is beneficial to the whole supervision and control on the blasting cap and is prevented from being reassembled after illegal dissection to a certain degree, thereby having high reliability and safety; and the basting cap has low cost, is simple in use and is particularly suitable for occasions needing high-accuracy short delay blasting.
Description
Technical field
The utility model relates to a kind of digital extension electric detonator of high accuracy that is used for engineering explosion, in particular for the occasion of high accuracy short-delay blasting.
Background technology
The extension body that generally uses in the present industrial delay detonator is a chemical agent extension body, adopts the method for the burning time of the powder column of controlling chemical agent extension body to obtain different defer times, like red lead-silicon system, barium chromate-tungsten system etc.Since chemical agent itself intrinsic characteristics determined its defer time filled a prescription and the restriction of technology very big; Make the control accuracy of its defer time lower, error is bigger; And the not high more time error of section is also just big more; And uniformity is also relatively poor, even the phenomenon of string section occurs, and above-mentioned defective is owing to receive the influence of chemical agent self performance to be difficult to solve through improved process or prescription at all.In addition, also inevitably use some poisonous and harmful substances in the prescription, have certain health hazard for production and user of service, and, only need common power supply, battery etc. to ignite in actual use, be not easy to management, social safety property is relatively poor.
Because the production danger that has industrial detonator of explosive is higher, the production of fire tube especially wherein more belongs to accident operation occurred frequently, and; Because existing production technology also need press-fit the higher priming of susceptibility usually therein and be beneficial to detonating of detonator, this kind detonator not only is prone to cause security incident in producing and transport and using, and; Also there is improper ignition channel; If cut detonator open, insert fuse cord again, still can be with cap sensitive; There is bigger potential safety hazard, especially can brings unsafe factor to society.
The utility model content
In order to overcome the above-mentioned defective of prior art, the purpose of the utility model is to provide a kind of digital extension electric detonator, can effectively reduce the extension error; Improve delay precision, reduce the quick-fried danger of mistake in production, transportation and the use, and help supervising in overall process detonator; Assembling once more after can also preventing to a certain extent illegally to dissect; Reliability and safe, production cost is low, and method for using is simple.
The technical scheme that the utility model adopts is:
A kind of digital extension electric detonator; Comprise shell; The bottom seal end of said shell is provided with sockets for collecting energy; Openend is provided with the sealing plug that is used to encapsulate detonator, and the inner segment of said shell is filled with main charge, booster explosive, three times fixedly medicine and igniting booster explosive from inside to outside successively, said three times fixedly between medicine and the igniting booster explosive and first, second strengthening cap that is pressed with left-hand thread outside the booster explosive of lighting a fire respectively; Outer section of said shell is packaged with the time-delay initiation control circuit; Two inputs of said time-delay initiation control circuit stretch into the inner detonator payment to a porter of said shell and link to each other with passing said sealing plug, and two outputs connections of said time-delay initiation control circuit are used to ignite the point of amorce of said igniting booster explosive, and said detonator payment to a porter is the unique external interface of said detonator; Can import and be used to ignite/detect the signal of telecommunication/electronic signal that detonator is used; Can control electric current in the bridge silk of the said point of amorce said point of amorce that ignites through said time-delay initiation control circuit, by the said point of amorce said igniting booster explosive that ignites, ignite whole said digital extension electric detonator again until igniting said main charge.
Said three times fixedly medicine be preferably perlite, said igniting booster explosive can or comprise the mixing medicine of hexogen for PETA.
More excellent ground; The convexity that the corresponding said detonator shell inwall in the said first strengthening cap bottom margin place is stretched in being provided with laterally; Said first strengthening cap bottom is against the lateral surface of said convexity; Said convexity can be boss or reducing place, and said protruding inboard caliber is less than the caliber outside the said convexity.
In above-mentioned each technical scheme, more excellent ground, said time-delay initiation control circuit comprises:
The electric capacity that detonates, its two ends constitute or connect respectively two outputs of said time-delay initiation control circuit respectively, for the bridge silk of said point of amorce provides initiation current;
Electronic switch is connected on the loop of detonating that is made up of said detonate electric capacity and said bridge silk, is used to be switched on or switched off the said loop of detonating;
The programmable delay chip is used to control the overall operation of said time-delay initiation control circuit, comprises the on off operating mode that is used to control said electronic switch, and according to effective time break, the said electronic switch of control converts conducting into by disconnection after the time-delay of setting.
More excellent ground, said time-delay initiation control circuit can also comprise:
The Sequence Detection of detonating circuit, the Code that connects said programmable delay chip holds, and is used for receiving and the identification external control signal;
Detonator parameter transtation mission circuit, the Out that connects said programmable delay chip holds, and is used to send the output signal of said programmable delay chip;
Crystal oscillating circuit is used to said programmable delay chip clock signal is provided;
Polarity switching is used for the electricity input of any polarity that inserts through the detonator payment to a porter is converted into the electricity input of particular polarity, and its electrode input end is provided with divider resistance, is connected with voltage regulation resistance between its two input;
The capacitances to supply power circuit that detonates is used for converting the electricity input of said polarity switching into for the said electric capacity charging of detonating burning voltage;
Chip power supply circuit is used for converting the electricity input of said polarity switching into into said programmable delay chip power supply burning voltage.
More excellent ground; The input of said polarity switching is connected with the voltage stabilizing branch road that constitutes said detonate capacitances to supply power circuit and said chip power supply circuit simultaneously; Route first mu balanced circuit is propped up in said voltage stabilizing and second mu balanced circuit is in series; Said first mu balanced circuit connects the cathode output end of said polarity switching; Said second mu balanced circuit connects the cathode output end of polarity switching, and the cathode output end of said first mu balanced circuit constitutes the positive pole output of the said capacitances to supply power circuit that detonates, and the cathode output end of said second mu balanced circuit constitutes the positive pole output of said chip power supply circuit.
More excellent ground, said voltage stabilizing branch road, polarity switching and electronic switch can adopt element or the element combination with following properties:
The mode of burning of said first mu balanced circuit and second mu balanced circuit is thermal breakdown but not blows; The mode of burning of said polarity switching is to blow but not thermal breakdown; The thermal breakdown time of said first mu balanced circuit and second mu balanced circuit is prior to time of blowing of said polarity switching and cause blowing of said polarity switching; The element of said first, second mu balanced circuit (is commonly referred to as the process that is converted into thermal breakdown by electrical breakdown) explosion and spark does not take place in breakdown process; The mode of burning of said electronic switch is to blow but not thermal breakdown, and the time of blowing is ignited the required time less than point of amorce.
Further, said time-delay initiation control circuit also comprises:
Discharge circuit; Connect into discharge loop with the said electric capacity that detonates; And be provided with the control end that is connected with said programmable delay chip, by said its on off operating mode of programmable delay chip controls, said programmable delay chip should be detonated and under the situation about not being detonated at said point of amorce; Convert connection through the said discharge circuit of control after the certain delay into by disconnection, make said ignition electric capacity through said discharge circuit discharge;
Chip power electric capacity, its two ends are connected to two outputs of said chip power supply circuit, are used for when network cuts off the power supply to said programmable delay chip power supply.
More excellent ground, said time-delay initiation control circuit also comprises:
The password memory circuit that detonates is used to store the preset password that detonates; The password read/write circuit that detonates is used to write/read the password that detonates; The password authentification circuit that detonates is used for the password that detonates of external control signal is verified to confirm to carry out or to refuse the control of said external control signal;
And/or,
ID identification code memory circuit stores the ID identification code that every unique being used to of detonator identifies the detonator identity; The ID identification code reads circuit, reads said ID identification code according to the ID identification code reading order in the external control signal; ID identification code transtation mission circuit is used for said ID identification code is sent through said detonator parameter transtation mission circuit.
More excellent ground, said time-delay initiation control circuit also comprises:
Testing circuit is used for carrying out self check according to the self-test signal of said external control signal;
The self-detection result transtation mission circuit is used for self-detection result is sent through said detonator parameter transtation mission circuit;
Also be provided with or be not provided with self check password memory circuit and self check password authentification circuit, be used for the self check password of said external control signal is verified, to start said testing circuit.
In above-mentioned each technical scheme, the time-delay of said crystal oscillating circuit can adopt the wrist-watch crystal oscillator as basic timing element, and the conducting resistance of said electronic switch is preferably less than 100m Ω.
The beneficial effect of the utility model is:
Because the utility model adopts the wrist-watch crystal oscillator as basic timing element, has fundamentally solved the inherent shortcoming of chemical agent extension body, not only cheap, precision but also high; And receive the influence of factors such as environment temperature minimum; Prove that in reaching 16 seconds defer time, the extension error of various sections other digital extension electric detonators is all less than ± 0.3 millisecond through a large amount of actual measurements; Even when using common point of amorce; The discreteness of medicine head self is the main source of its error, this moment its error still be no more than ± 3 milliseconds, and production process is harmless fully;
Because the number extension electric detonator of the utility model adopts password to detonate, and all there is own unique electronics ID identity code every detonator inside, is convenient to management and reviews; Have higher social safety property, being arranged so that of function of miss-firing in the delay initiation control circuit of the number extension electric detonator of the utility model in addition the utlity model has the ability of miss-firing to common power of alterating and direct current and common exploder, if password not match; Even directly apply the civil power of 220V also can't ignite in the detonator payment to a porter; The number extension electric detonator of the utility model also is provided with discharge circuit, has reduced the danger of operations such as row's miso-fire, and; The utility model has also adopted special charge constitution; Therefore, if do not know password, also can't use even obtained detonator from illegal channels; Both effectively reduced the harm that detonator is illegally detonated, also reduced detonator by the illegal danger of dissecting or forcing to detonate;
The defer time of the utility model is to realize through the programming to the programmable delay chip; Can be that unit sets arbitrarily with the millisecond, need not adjustment, defer time be 16 seconds and increase cost and difficulty; Particularly; The programming of the circuit board processing of the utility model, components and parts welding and programmable delay chip all can realize large-scale industrialization production, both can adopt existing manufacturing technique and equipment to produce, and technological level, technical merit and the production capacity of the paster production line of at present domestic circuit board processing factory, components and parts welding can meet the demands basically; If small lot batch manufacture can be adopted the editor writing code; If large-scale production can be adopted mask production, make the mode of production versatile and flexible, be suitable for large-scale promotion application;
The number extension electric detonator of the utility model is except using the special-purpose high voltage and constant current initiator, and is almost completely identical with traditional operation of detonating, easy simple to operate; For example can be composed in series initiation net, be connected on the output of high voltage and constant current initiator, configure the password that detonates by traditional approach; Pressing the button that detonates can detonate, in addition, and when adopting the series connection networking;, network only needs to use common ohmmeter promptly can measure its break-make after connecting completion; And also be provided with polarity switching, need not consider the influence of network polarity when making networking basically, very easy to use.
Description of drawings
Fig. 1 is an embodiment sketch map of the number extension electric detonator of the utility model;
Fig. 2 is the structural representation of time-delay initiation control circuit of the number extension electric detonator of the utility model;
Fig. 3 is the embodiment sketch map of time-delay initiation control circuit of the number extension electric detonator of the utility model.
The specific embodiment
In order better to explain the utility model, so that better understanding is done further to describe to the utility model through the specific embodiment below in conjunction with accompanying drawing.
Referring to Fig. 1 to Fig. 3; The utility model provides a kind of digital extension electric detonator; Comprise that inner segment is packaged with the shell 1 of explosive, the bottom seal end of said shell is provided with sockets for collecting energy, and openend is provided with the sealing plug that is used to encapsulate detonator; Outer section of said shell is packaged with time-delay initiation control circuit 2; Two inputs 10.1,10.2 of said time-delay initiation control circuit stretch into the inner detonator payment to a porter 202 of said shell and link to each other with passing said sealing plug, and two outputs 18.1,19.1 are connected with the two ends of the bridge silk of said point of amorce 201, and said detonator payment to a porter is the unique external interface of said detonator; Can import and be used to ignite/detect the signal of telecommunication/electronic signal that detonator is used; Can control defer time through said time-delay initiation control circuit, for example, the size, time that can control the electric current in the said bridge silk are with the said point of amorce that ignites at preset time; By the said point of amorce said igniting booster explosive that ignites, after igniting said main charge, ignite whole said digital extension electric detonator again.
In an embodiment of the utility model; Said shell inner segment is filled with main charge 101, booster explosive 102, three fixedly medicine 103 and igniting booster explosives 104 from inside to outside successively; Said three times fixedly between medicine and the igniting booster explosive and igniting be pressed with first, second strengthening cap 105,106 of left-hand thread outside the booster explosive respectively; Outer section of said shell is packaged with the time-delay initiation control circuit, and two outputs of said time-delay initiation control circuit connect the point of amorce that is used to ignite said igniting booster explosive.
Said three times fixedly medicine mainly play fixation, prevent that booster explosive from the medicine situation occurring spilling when detonator tilts.And; Since said three times fixedly the susceptibility of medicine to compare booster explosive lower; Therefore, can in the process that press-fits, utilize the pressing drift directly compacting said three times fixedly the mode of medicine/said first strengthening cap said booster explosive is press-fited indirectly, improve the security of producing.
More excellent ground; The convexity that the corresponding said detonator shell inwall in the said first strengthening cap bottom margin place is stretched in being provided with laterally; Said first strengthening cap bottom is against on the lateral surface of said convexity; Said convexity can be boss or reducing place, and said protruding inboard caliber is less than the caliber outside the said convexity.
Because the bottom margin of said first strengthening cap is in the said protruding outside (promptly away from explosive one side), therefore, the situation that the booster explosive that can effectively prevent in follow-up process of manufacture, to cause is crushed to death.Said second strengthening cap can play and prevent that the medicine phenomenon from appearring spilling in said igniting booster explosive.
More excellent ground, said main charge can be hexogen, owing to the increase along with explosive density of the velocity of explosion of explosive increases, has the good power of detonating in order to make the detonator product, the density of said main charge usually should be more than or equal to 1.65g/cm
3Said booster explosive can be for hexogen or is pacified very much; The density of said booster explosive is relatively low, and should adopt the lower booster explosive of susceptibility as far as possible, said three times fixedly medicine be preferably perlite; Said perlite can be expanded perlite or perlite roughing sand, and said igniting booster explosive can or comprise the mixing medicine of hexogen for PETA.
In above-mentioned each technical scheme, in order to control defer time through said time-delay initiation control circuit, said time-delay initiation control circuit can comprise:
The core of said delay initiation control circuit is described programmable delay chip; Said crystal oscillating circuit can comprise quartz-crystal resonator 16; Described quartz-crystal resonator can adopt the wrist-watch crystal oscillator as basic timing element; Cooperate two little electric capacity to form said crystal oscillating circuit again, its precision has directly determined the delay precision of whole delay initiation control circuit, and the nominal frequency of common said quartz-crystal resonator can be 32.768KHz.Because the high accuracy of quartz crystal itself and high stability (20～50ppm), so both guaranteed little power consumption, guaranteed that again error is less than ± 0.3 millisecond in reaching 16 seconds defer time.
In practical application; Usually on initiation net, be connected with various different other detonators of section; Cause high other detonator of section to lose supply of electric power and can't ignite in order to prevent that low other blasting cap detonation of section from blowing up network; Common said time-delay initiation control circuit can also be provided with the electric capacity 19 that detonates, and its two ends constitute or connect respectively two outputs of said time-delay initiation control circuit respectively, for said bridge silk provides initiation current; Because it can charge when network is connected in advance, the ignition of point of amorce will rely on this capacitance discharges process of detonating to accomplish after the network outage.In order to guarantee to reach the level that is enough to ignite reliably point of amorce through the discharge current of point of amorce; Except the capacity of the electric capacity that must guarantee to detonate enough big; Beyond the enough height of charging voltage, the conducting resistance of said electronic switch also must be enough little, is preferably to reach below the 100m Ω.
Because the required ignition voltage of said point of amorce is much higher than the operating voltage of said programmable delay chip; Therefore; Can supply power separately for both; For example, detonate capacitances to supply power circuit and chip power supply circuit can be set simultaneously, be respectively applied for the burning voltage that the electricity input is converted into to the said electric capacity charging of detonating and convert the electricity input into burning voltage into said programmable delay chip power supply with being used for.
Through the said capacitances to supply power circuit that detonates is that said bridge silk provides stable high voltage source; Its output immediate current can be up to 8～10A; Being enough to reliably ignite common point of amorce, is that said programmable delay chip provides stable low-tension supply through said chip power supply circuit, and said capacitances to supply power circuit or the electric capacity that detonates of detonating provides the electric current of adaptation for said bridge silk under the control of said programmable delay chip; To guarantee the safety of electric detonator, avoid occurring unintended detonation.
More excellent ground; Said time-delay initiation control circuit can also comprise chip power electric capacity 14, and its two ends are connected to two outputs of said chip power supply circuit, is used for when network cuts off the power supply to said programmable delay chip power supply; After the network outage; Said chip power electric capacity can provide the faint electric current of keeping for the programmable delay chip, until the completion of detonating, is equivalent to all be provided with an independent power supply in the programmable delay chip of every detonator; Avoided the influence of network outage, the miso-fire phenomenon of particularly having avoided the extension of network outage influence section to cause for delay precision.
Usually, the detonator after may causing for some reason charging will not be ignited maybe and can't ignite, for example when reasons such as fault, medicine head rosin joint cause miso-fire; Detonator for not having to ignite need be got rid of, and removing the potential safety hazard that the detonator do not ignited causes, and also has certain potential safety hazard when getting rid of for the detonator after the charging; Safety coefficient when getting rid of in order to improve; More excellent ground, said time-delay initiation control circuit also comprises the discharge circuit 20 that receives said programmable delay chip controls, said discharge circuit and the said electric capacity that detonates connect into discharge loop; And be provided with the control end that is connected with said programmable delay chip; By said its on off operating mode of programmable delay chip controls, said programmable delay chip should be detonated and under the situation about not being detonated, converts connection through the said discharge circuit of control after the certain delay into by disconnection at said point of amorce; When for example also not detonating afterwards above the time of origin certain hour of setting that detonates; Make said ignition electric capacity through said discharge circuit discharge, so that the charge discharging resisting of storing in the said high-voltage energy-storage circuit is fallen, because initiation net cuts off the power supply; The electric capacity that detonates has not had ability to ignite point of amorce, the quick-fried possibility of mistake takes place in exclusion process subsequently just greatly reduce.
More excellent ground; Said time-delay initiation control circuit also comprises the polarity switching 10 that can the electricity input of any polarity that inserts through the detonator payment to a porter be changed the electricity input (as above negative just down fixedly positive-negative polarity) of particular polarity; Arranging net and connect conveniently in feasible scene, needn't consider the polarity that is connected with initiation net can realize nonpolarity connection; The electrode input end of said polarity switching can be provided with divider resistance, can also be connected with voltage regulation resistance between its two input.
More excellent ground; The input of said polarity switching can be connected with the voltage stabilizing branch road that constitutes said detonate capacitances to supply power circuit and said chip power supply circuit simultaneously; Route first mu balanced circuit 12 is propped up in said voltage stabilizing and second mu balanced circuit 13 is in series; Said first mu balanced circuit connects the cathode output end of said polarity switching; Said second mu balanced circuit connects the cathode output end of polarity switching, and the cathode output end of said first mu balanced circuit constitutes the positive pole output of the said capacitances to supply power circuit that detonates, and the cathode output end of said second mu balanced circuit constitutes the positive pole output of said chip power supply circuit.
In order to improve security performance; Said digital extension electric detonator needs the special use equipment that detonates just can detonate usually; Have the function of miss-firing to general AC/DC power supply, battery or the common equipment that detonates simultaneously, the choose opportunities of the said function of miss-firing and entry condition can be provided with according to actual needs.
For example; Can realize the said function of miss-firing through the mode of burning and the time of the components and parts in screening polarity switching, electronic switch and first mu balanced circuit/second mu balanced circuit: wherein the mode of burning of first mu balanced circuit and second mu balanced circuit must be thermal breakdown but not blow; The mode of burning of said polarity switching must be to blow but not thermal breakdown; And the thermal breakdown time of first mu balanced circuit and second mu balanced circuit must and be caused blowing of said polarity switching prior to time of blowing of polarity switching; Thereby protect said electronic switch, wherein, the condition of screening the components and parts of first mu balanced circuit and second mu balanced circuit is; Explosion and spark do not take place in the element of said first, second mu balanced circuit in breakdown process; Especially explosion and spark should not take place from electric shock during through thermal breakdown, in case of necessity, said electronic switch also can be burnt; Its mode of burning must be to blow but not thermal breakdown, and the time of blowing must be detonated the required time less than point of amorce.
In above-mentioned each technical scheme; Consideration from safety in utilization and social safety property; Said digital extension electric detonator can be set to only could be by the control operation after accomplishing specific checking; For example, said time-delay initiation control circuit can also be provided with detonate Sequence Detection circuit 17 and detonator parameter transtation mission circuit 11, and the said Sequence Detection circuit that detonates can be connected the Code end of said programmable delay chip; Can be used in and receive and the identification external control signal; Said external control signal can comprise the password that detonates, self check password, the ID identification code reading order of being located in the said sequence of detonating usually, and said detonator parameter transtation mission circuit can be connected the Out end of said programmable delay chip, is used to send the output signal of said programmable delay chip.
Said time-delay initiation control circuit also comprises:
The password memory circuit that detonates is located in the said programmable delay chip, is used to store the preset password that detonates; The password read/write circuit that detonates is used to write/read the password that detonates; The password authentification circuit that detonates is located in the said Sequence Detection circuit that detonates, and is used for the password that the detonates/sequence of detonating to external control signal and verifies to confirm to carry out or to refuse the control of said external control signal;
The password that detonates that prestores in the password that the detonates/sequence of detonating in the external control signal that the said password authentification circuit that detonates will receive and the password memory circuit that detonates is compared and is judged the validity of the external password that the detonates/sequence of detonating; To confirm to carry out or refuse the control of external control signal; Usually the external password that detonates all uses and becomes the password pulse train of detonating after the specifically defined pulsewidth modulation and import said time-delay initiation control circuit and verify; The said password pulse train of detonating can be made up of (perhaps on/off replaces) train of pulse that one group of continuous height/low level replaces; Wherein the width of each pulse (being the duration) is represented a decimal system or hexadecimal password position; The number of pulse in width and each train of pulse of the said Sequence Detection circuit that detonates through detecting each said pulse; And contrast with detonate password or the password pulse train of detonating that are stored in the digital extension electric detonator, if both are consistent, then allow next step operation; If inconsistent, do not do any reaction or refuse next step operation;
And/or,
ID identification code memory circuit is located in the said programmable delay chip, stores the ID identification code that every unique being used to of detonator identifies the detonator identity; The ID identification code reads circuit, is located in the said Sequence Detection circuit that detonates, and reads said ID identification code according to the ID identification code reading order in the external control signal; ID identification code transtation mission circuit; Be used for said ID identification code is sent through said detonator parameter transtation mission circuit, the said Sequence Detection circuit that detonates sends the ID identification code of pre-stored in the said time-delay initiation control circuit according to the ID identification code reading order that receives through said detonator parameter transtation mission circuit, and obtains and carry out the fuze of outside input; Usually; For the ease of the consideration of management with safety, to produce beginning certainly and finish to using, every digital extension electric detonator all has unique ID identification code that can identify its identity; As can be electronics ID identity code; And be stored in the said delay initiation control circuit, to strengthen its trackability, when the Sequence Detection electric circuit inspection of detonating reads the ID identification code reading order of the electronics ID identity code in the detonator to external requirement after; always In the input programmable delay chip; The programmable delay chip sends to said detonator parameter transtation mission circuit with the electronics ID identity code of its internal reservoir again, and said detonator parameter transtation mission circuit adopts one by one the mode that voltage between 10.1 and 10.2 is dragged down, and this electronics ID identity code is sent; Usually, the time width that drags down of each voltage or represent a decimal system or hexadecimal number at interval.
Comprise in the external control signal of the said password that the detonates/sequence of detonating also to comprise described ID identification code reading order, when the said Sequence Detection Circuit verification that detonates the is said described ID identification code reading order of password success back execution that detonates; Perhaps, comprise the said password that the detonates/sequence of detonating in the fuze of said outside input, the said Sequence Detection circuit that detonates carries out after the fuze that receives said outside input the checking of the said password that the detonates/sequence of detonating.Concrete scheme should be selected according to actual needs, is preferably the former.
Said time-delay initiation control circuit to the processing mode of said external control signal can for: said external control signal is the train of pulse of pulsewidth modulation; Insert the input of said polarity switching through said detonator payment to a porter; The said input that detonates the Sequence Detection circuit connects the output of said polarity switching; The corresponding pulses string that the output of said polarity switching is sent here is discerned and is generated corresponding data and sends into said programmable delay chip; The mode that said detonator parameter transtation mission circuit sends the output signal of said programmable delay chip is the output that the output of said detonator parameter transtation mission circuit connects said polarity switching; To encoding from the input signal of said programmable delay chip; Generate the train of pulse of pulsewidth modulation, drag down the level of said detonator payment to a porter with this train of pulse through said polarity switching one by one.
Usually; In order to guarantee the sufficiently high yield rate of dispatching from the factory, before dispatching from the factory, detonator need detect, for example can take the mode of inspecting by random samples; But one of the every detection of common detection method will consume one; Can not realize detection fully truly, if realize the full inspection of dispatching from the factory of said digital extension electric detonator, need prove then that every detonator can normally detonate and can not be real go ignite.
More excellent ground, said time-delay initiation control circuit also comprises:
Testing circuit is used for carrying out self check according to the self-test signal of said external control signal;
The self-detection result transtation mission circuit is used for self-detection result is sent through said detonator parameter transtation mission circuit;
Also be provided with or be not provided with self check password memory circuit (being located in the said programmable delay chip) and self check password authentification circuit, be used for the self check password of said external control signal is verified, to start said testing circuit.For example; Non-Destructive Testing to detonator before dispatching from the factory can be adopted following manner: receive external self-test signal through the said Sequence Detection circuit that detonates; And carry out self check; Said programmable delay chip can be provided with the self-checking circuit that is used to obtain the self-detection result signal, and said self-detection result signal is exported through said detonator parameter transtation mission circuit; Perhaps; The additional testing circuit of full inspection before said time-delay initiation control circuit is provided with and is used for the finished product detonator dispatched from the factory; Said testing circuit carries out self check according to the external self-test signal through detonator payment to a porter input, and has said self-detection result transtation mission circuit that self-detection result is sent through said payment to a porter by said detonator parameter transtation mission circuit.More excellent ground, said programmable delay chip can also be built-in with the self check password, and the self-test signal that said programmable delay chip can receive through built-in self check password authentification allows to carry out self check after verifying successfully.
The detection content of said self check can comprise the charging voltage and in the point of amorce welded condition information one or more of input resistance and the capacity cell (comprising detonate electric capacity and chip power electric capacity) of defer time, said time-delay initiation control circuit, can also comprise the resistance of single detonator, the all-in resistance of initiation net etc.
Usually, several said digital extension electric detonators can adopt connected mode networking that series, parallel or connection in series-parallel mix to constitute initiation net.Be preferably and adopt the series system networking, so that operation.
Usually, the course of work of above-mentioned digital extension electric detonator (is example with the series connection) as follows:
(1) series connection networking: will be some send out digital extension electric detonator said and adopt the mode of connecting to form initiation net;
(2) charging process: adopt special-purpose initiator to charge through the delay initiation control circuit of series network in every detonator; Charging process continues more than 5 seconds usually; Detonate electric capacity and chip power electric capacity all is filled; The programmable delay chip gets into resting state after of short duration reseting procedure is accomplished, wait for the sequence of the detonating/password that detonates from special-purpose initiator, and said special-purpose initiator can be the high voltage and constant current initiator;
(3) recharging process: because the existence of power process before the sequence checking of detonating; Can make the electric weight on the electric capacity that detonates/chip power electric capacity that small loss is arranged; For two electric capacity after guaranteeing in extension process thereafter/finishing still have enough electric weight, the recharging process will continue more than 0.5 second at least;
(4) extension process: the moment of outage after the recharging process finishes; Start internal delay time procedure time benchmark (being starting point) as all time-delay initiation control circuits on the initiation net; At this constantly, all time-delay initiation control circuit does not begin to delay according to separately section on the initiation net;
(5) detonate: the moment that the defer time of each time-delay initiation control circuit finishes, its electronic switch is switched on, and the capacitance discharges of detonating process makes point of amorce ignited by moment;
(6) discharge process: if point of amorce is not detonated, its programmable delay chip is connected discharge circuit after having waited for the sufficiently long time, removes hidden danger, for getting rid of miso-fire safety condition is provided.
The major part delay initiation control circuit of the number extension electric detonator of the utility model can be made the little circuit board that an appearance and size is no more than 6 * 30mm; Wherein topmost components and parts all can adopt the form of paster encapsulation to distribute above that; Like programmable delay chip, the electric capacity that detonates, low pressure energy storage capacitor, quartz-crystal resonator, electronic switch etc., this little circuit board can be encapsulated in the tube shell of internal diameter Ф 6.2mm specification.
The utility model provides a kind of delay precision height, high conformity, simple, the reliability and safe of method for using; And cheap, can be particularly suitable for the use of high accuracy short-delay blasting occasion for the generally accepted digital extension electric detonator of domestic users.
Claims (10)
1. digital extension electric detonator; Comprise shell; The bottom seal end that it is characterized in that said shell is provided with sockets for collecting energy; Openend is provided with the sealing plug that is used to encapsulate detonator; The inner segment of said shell is filled with main charge, booster explosive, three times fixedly medicine and igniting booster explosive from inside to outside successively, and said three times fixedly between medicine and the igniting booster explosive and first, second strengthening cap that is pressed with left-hand thread outside the booster explosive of lighting a fire respectively, outer section of said shell is packaged with the time-delay initiation control circuit; Two inputs of said time-delay initiation control circuit stretch into the inner detonator payment to a porter of said shell and link to each other with passing said sealing plug, and two outputs connections of said time-delay initiation control circuit are used to ignite the point of amorce of said igniting booster explosive.
2. digital extension electric detonator according to claim 1, it is characterized in that said three times fixedly medicine be perlite, said igniting booster explosive is PETA or the mixing medicine that comprises hexogen.
3. digital extension electric detonator according to claim 2; It is characterized in that the convexity that the corresponding said detonator shell inwall in the said first strengthening cap bottom margin place is stretched in being provided with laterally; Said first strengthening cap bottom is against the lateral surface of said convexity; Said convexity is boss or reducing place, and said protruding inboard caliber is less than the caliber outside the said convexity.
4. according to claim 1,2 or 3 described digital extension electric detonators, it is characterized in that said time-delay initiation control circuit comprises:
The electric capacity that detonates, its two ends constitute or connect respectively two outputs of said time-delay initiation control circuit respectively, for the bridge silk of said point of amorce provides initiation current;
Electronic switch is connected on the loop of detonating that is made up of said detonate electric capacity and said bridge silk, is used to be switched on or switched off the said loop of detonating;
The programmable delay chip is used to control the on off operating mode of said electronic switch, and according to effective time break, the said electronic switch of control converts conducting into by disconnection after the time-delay of setting.
5. digital extension electric detonator according to claim 4 is characterized in that said time-delay initiation control circuit also comprises:
The Sequence Detection of detonating circuit, the Code that connects said programmable delay chip holds, and is used for receiving and the identification external control signal;
Detonator parameter transtation mission circuit, the Out that connects said programmable delay chip holds, and is used to send the output signal of said programmable delay chip;
Crystal oscillating circuit is used to said programmable delay chip clock signal is provided;
Polarity switching is used for the electricity input of any polarity that inserts through the detonator payment to a porter is converted into the electricity input of particular polarity, and its electrode input end is provided with divider resistance, is connected with voltage regulation resistance between its two input;
The capacitances to supply power circuit that detonates is used for converting the electricity input of said polarity switching into for the said electric capacity charging of detonating burning voltage;
Chip power supply circuit is used for converting the electricity input of said polarity switching into into said programmable delay chip power supply burning voltage.
6. digital extension electric detonator according to claim 5; It is characterized in that: the input of said polarity switching is connected with the voltage stabilizing branch road that constitutes said detonate capacitances to supply power circuit and said chip power supply circuit simultaneously; Route first mu balanced circuit is propped up in said voltage stabilizing and second mu balanced circuit is in series; Said first mu balanced circuit connects the cathode output end of said polarity switching; Said second mu balanced circuit connects the cathode output end of polarity switching; The cathode output end of said first mu balanced circuit constitutes the positive pole output of the said capacitances to supply power circuit that detonates, and the cathode output end of said second mu balanced circuit constitutes the positive pole output of said chip power supply circuit.
7. digital extension electric detonator according to claim 6 is characterized in that said voltage stabilizing branch road, polarity switching and electronic switch adopt element or the element combination with following properties:
The mode of burning of said first mu balanced circuit and second mu balanced circuit is thermal breakdown but not blows; The mode of burning of said polarity switching is to blow but not thermal breakdown; The thermal breakdown time of said first mu balanced circuit and second mu balanced circuit is prior to time of blowing of said polarity switching and cause blowing of said polarity switching; Explosion and spark do not take place in breakdown process in the element of said first, second mu balanced circuit; The mode of burning of said electronic switch is to blow but not thermal breakdown, and the time of blowing is ignited the required time less than point of amorce.
8. digital extension electric detonator according to claim 7 is characterized in that said time-delay initiation control circuit also comprises:
Discharge circuit; Connect into discharge loop with the said electric capacity that detonates; And be provided with the control end that is connected with said programmable delay chip, by said its on off operating mode of programmable delay chip controls, said programmable delay chip should be detonated and under the situation about not being detonated at said point of amorce; Convert connection through the said discharge circuit of control after the certain delay into by disconnection, make said ignition electric capacity through said discharge circuit discharge;
Chip power electric capacity, its two ends are connected to two outputs of said chip power supply circuit, are used for when network cuts off the power supply to said programmable delay chip power supply.
9. digital extension electric detonator according to claim 8 is characterized in that said time-delay initiation control circuit also comprises:
The password memory circuit that detonates is used to store the preset password that detonates; The password read/write circuit that detonates is used to write/read the password that detonates; The password authentification circuit that detonates is used for the password that detonates of external control signal is verified to confirm to carry out or to refuse the control of said external control signal;
And/or,
ID identification code memory circuit stores the ID identification code that every unique being used to of detonator identifies the detonator identity; The ID identification code reads circuit, reads said ID identification code according to the ID identification code reading order in the external control signal; ID identification code transtation mission circuit is used for said ID identification code is sent through said detonator parameter transtation mission circuit.
10. digital extension electric detonator according to claim 9 is characterized in that said time-delay initiation control circuit also comprises:
Testing circuit is used for carrying out self check according to the self-test signal of said external control signal;
The self-detection result transtation mission circuit is used for self-detection result is sent through said detonator parameter transtation mission circuit;
Also be provided with or be not provided with self check password memory circuit and self check password authentification circuit, be used for the self check password of said external control signal is verified, to start said testing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202974096U CN202221280U (en) | 2011-08-16 | 2011-08-16 | Digital delayed electronic blasting cap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202974096U CN202221280U (en) | 2011-08-16 | 2011-08-16 | Digital delayed electronic blasting cap |
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| Publication Number | Publication Date |
|---|---|
| CN202221280U true CN202221280U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202974096U Expired - Lifetime CN202221280U (en) | 2011-08-16 | 2011-08-16 | Digital delayed electronic blasting cap |
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| CN (1) | CN202221280U (en) |
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| CN102261872A (en) * | 2011-08-16 | 2011-11-30 | 北京京煤化工有限公司 | Digital delayed electronic detonator |
| CN103217079A (en) * | 2012-12-12 | 2013-07-24 | 柳州长虹机器制造公司 | Nonpolar double-wire communication digital electronic detonator capable of self-delaying and detonation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102261872A (en) * | 2011-08-16 | 2011-11-30 | 北京京煤化工有限公司 | Digital delayed electronic detonator |
| CN102261872B (en) * | 2011-08-16 | 2013-07-31 | 北京京煤化工有限公司 | Digital delayed electronic detonator |
| CN103217079A (en) * | 2012-12-12 | 2013-07-24 | 柳州长虹机器制造公司 | Nonpolar double-wire communication digital electronic detonator capable of self-delaying and detonation method thereof |
| CN103217079B (en) * | 2012-12-12 | 2015-04-15 | 柳州长虹机器制造公司 | Nonpolar double-wire communication digital electronic detonator capable of self-delaying and detonation method thereof |
| CN109458887A (en) * | 2018-12-27 | 2019-03-12 | 山西宸润隆科技有限责任公司 | Digital safety electric cap based on the detonation of high pressure plasma igniter cumulative |
| CN109458887B (en) * | 2018-12-27 | 2023-10-20 | 山西宸润隆科技有限责任公司 | Digital safe electric detonator based on high-voltage plasma ignition tool energy-gathering detonation |
| CN111623676A (en) * | 2020-06-05 | 2020-09-04 | 无锡盛景电子科技有限公司 | Coal mine allowable delay combined detonator |
| CN112050687A (en) * | 2020-09-08 | 2020-12-08 | 南华大学 | Electronic activator for intelligent carbon dioxide phase change cracking device |
| CN114791247A (en) * | 2022-03-29 | 2022-07-26 | 上海芯飏科技有限公司 | Electronic detonator delay system and method |
| CN114791247B (en) * | 2022-03-29 | 2023-09-29 | 上海芯飏科技有限公司 | Electronic detonator delay system and method |
| CN114719699A (en) * | 2022-04-08 | 2022-07-08 | 宏大爆破工程集团有限责任公司 | Safety detonating device |
| CN114922593A (en) * | 2022-05-25 | 2022-08-19 | 物华能源科技有限公司 | Electronic selective-sending igniter for oil-gas well |
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Owner name: TAIYUAN XINXIN MICRO-ELECTRIC SCIENCE TECHNOLOGY C Free format text: FORMER OWNER: BEIJING ANYIDI TECHNOLOGY CO., LTD. Effective date: 20130704 |
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Effective date of registration: 20130704 Address after: 102471, Tuo Town, Beijing, Fangshan District Patentee after: Beijing Jingmei Chemical Co., Ltd. Patentee after: Taiyuan Xinxin Micro-electric Science Technology Co., Ltd. Address before: 102471, Tuo Town, Beijing, Fangshan District Patentee before: Beijing Jingmei Chemical Co., Ltd. Patentee before: Beijing Anyidi Technology Co., Ltd. |
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Granted publication date: 20120516 |