CN209085460U - Electric detonator circuit protection structure - Google Patents
Electric detonator circuit protection structure Download PDFInfo
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- CN209085460U CN209085460U CN201821298689.0U CN201821298689U CN209085460U CN 209085460 U CN209085460 U CN 209085460U CN 201821298689 U CN201821298689 U CN 201821298689U CN 209085460 U CN209085460 U CN 209085460U
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- discharge tube
- electric detonator
- circuit
- semiconductor discharge
- payment
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Abstract
The utility model provides a kind of electric detonator circuit protection structure; semiconductor discharge tube is connected between two ends of the payment to a porter input terminal on electric detonator circuit board; when voltage is in stable safe range in the circuit of electric detonator; semiconductor discharge tube is not turned on; the circuit of electric detonator works normally; when occurring being higher than the voltage of safe range in the circuit of electric detonator; the breakdown conducting of semiconductor discharge tube avoids on electric detonator circuit because high voltage or transient high-current cause electronic component to damage and generate spark.The it is proposed of the utility model creativeness, using the extremely low semiconductor discharge tube of conducting resistance various interference signals received to detonator wire, as long as crest voltage is greater than a certain voltage and the other circuit elements normal works of protection are connected rapidly.
Description
Technical field
The utility model relates to priming system technical fields, especially to electric detonator circuit protection structure.
Background technique
Electric detonator starts to be widely used at home, is generally the metal circular tube of 0.3mm or so wall thickness as thunder
Pipe tube body, about in 6.5-8mm, electronic control module is installed in the metal tube and is protected by it outer diameter.Electric detonator and tradition
Product comparison, is delayed accurate and highly-safe, but exposed under certain environment in use, especially blasthole spacing is small
The high defect of rate of miss-firing in the case where 30cm, due to detonator, explosive and rock comprehensive function first quick-fried in priming network design network
Strong electromagnetic interference signal can be generated, such interference signal imported into electric detonator by two payment to a porter of not quick-fried electric detonator
Inside, interference voltage peak value up to 10 kilovolts more than, cause detonator tubular body electronic control module to primer casing metal
Pipe shelf depreciation, also cause internal electron control module cannot normal delayed firing, cause blind big gun.Or due to various reasons,
Induced voltage, induced current, overvoltage, overcurrent, electrostatic, stray electrical current, surge electricity are generated in electric detonator payment to a porter input terminal
When stream or electric detonator payment to a porter are struck by lightning, it will lead to the electronic component in control circuit and damage and generate spark, and then lead
It causes spark to ignite electric detonator, causes safety accident.
Semiconductor discharge tube is also known as solid state discharge tube, is a kind of over-voltage protector, is made of to utilize thyristor principle
, it is connected by the breakdown current trigger device of PN junction, can release very big surge current or pulse current.Its breakdown voltage
Range, constitute the range of overvoltage protection.Solid state discharge tube using when can be connected directly across by protection circuit both ends, work
Principle is as shown in Fig. 7, in attached drawing 7, VDRMMaximum voltage i.e. off-state crest voltage when not turned on for semiconductor discharge tube, IDRM
Maximum current i.e. off-state peak point current when not turned on for semiconductor discharge tube, VSFor switching voltage, ISFor switching current, VTIt leads
Be powered pressure, ITConducting electric current, IHMaintain electric current.What solid state discharge tube inhibited to be pressed against is its breakdown potential pressing clamping action, when
External voltage is less than VDRMWhen, device is in an off state, and protection circuit works normally, and applied voltage is higher than VS, discharge tube is rapid
Conducting, plays protection circuit function, and after applied voltage restores normal, electric current, which is quickly fallen to, maintains electric current IH, discharge tube is certainly
So return to off-state.For example same switch of semiconductor discharge tube working condition, when off-state, IDRMIt is minimum, will not influence with
Its normal work by protection circuit in parallel, when moment over-voltage is more than its off-state crest voltage VDRMWhen, generate moment snowslide effect
It answers, electric current rises to IS, device quickly enters on state, and at this moment circuit is almost short-circuit, passes through very big surge current or arteries and veins
Electric current is rushed, the purpose for quickly eliminating surge will be played, its subsequent voltage is reduced to conducting voltage VT.Semiconductor discharge tube have with
Lower advantage: it is suitble to the antistatic surge of high density surface attachment；It is suitble to flowing and measures low, can be used for high-frequency circuit；Height insulation resistance
Anti- characteristic；The advantages that can carrying out tape package, but it is not applied to electric detonator circuit at present.
Payment to a porter and shell are attached by traditional detonator antistatic mode using high-impedance resistors, avoid payment to a porter and shell
Insulation performance is too high, and electrostatic, which can not discharge, when people touches shell causes to generate spark detonating primer inside detonator.But this mode
Detonator safety accident caused by stray electrical current, induced voltage or indirect lightning strike is not can solve.
Current most of electric detonators can play similar anti-static effect using point discharge principle, but it is existing to detonate
The induced voltage of the various equipment generations in field, induced current may all damage electric detonator internal circuit or logical miss.
Utility model content
The purpose of this utility model is: provide electric detonator circuit protection structure, it is avoided that on electric detonator circuit because
High voltage or transient high-current cause electronic component to damage and generate spark, and then ignite electric detonator, cause safety accident.
It is realized particular by following technical scheme
Electric detonator circuit protection structure, including semiconductor discharge tube A, grounding elastic slice, electric detonator circuit board, payment to a porter are defeated
Enter end, module control circuit D, wherein payment to a porter input terminal and module control circuit D are connected to form circuit, and in payment to a porter input terminal and
It is in parallel between module control circuit D to access semiconductor discharge tube and grounding elastic slice.
Grounding elastic slice is accessed between payment to a porter input terminal and module control circuit D by the parallel connection of module control protection electric circuit.
The composition of the module control protection electric circuit includes patch capacitor and Chip-R, and wherein patch capacitor includes patch
Chip capacitor C1 and patch capacitor C2, Chip-R include Chip-R R1 and Chip-R R2；Patch capacitor C1 and Chip-R
After R1 series connection again between in parallel access payment to a porter input terminal and module control circuit D, after patch capacitor C2 and Chip-R R2 series connection
Again between access payment to a porter input terminal and module control circuit D in parallel；The series sequence of patch capacitor C1 and Chip-R R1 and
Series sequence is on the contrary, the tie point of the tie point of patch capacitor C1 and Chip-R R1 and patch capacitor C2 and Chip-R R2 connect
It is logical, and the tie point is connect with grounding elastic slice.
The wherein payment to a porter input terminal on semiconductor discharge tube first parallel connection access electric detonator circuit board, semiconductor discharge tube A
It is in parallel with patch capacitor C1, patch capacitor C2, Chip-R R1, Chip-R R2, patch capacitor C1, patch capacitor C2, patch
Resistance R1, Chip-R R2 are accessed on electric detonator circuit board by mounting technology, and grounding elastic slice and electric detonator circuit board connect
It is connected to tie point M, grounding elastic slice is connected by contact chip with basic shell.
The semiconductor discharge tube includes semiconductor discharge tube A and semiconductor discharge tube B, semiconductor discharge tube A and half
In parallel after conductive discharge pipe B series connection to access between payment to a porter input terminal and module control circuit D, grounding elastic slice connects discharges in semiconductor
Between pipe A and semiconductor discharge tube B, and it is connected to tie point N with electric detonator circuit board, grounding elastic slice passes through contact chip and base
The conducting of plinth shell.
The semiconductor discharge tube includes semiconductor discharge tube A and semiconductor discharge tube B, and semiconductor discharge tube A is in parallel
It accesses between payment to a porter input terminal and module control circuit D, one end of an end Jie payment to a porter input terminal of semiconductor discharge tube B is led
The other end of body discharge tube B is connect with grounding elastic slice, and grounding elastic slice is connected on electric detonator circuit board by tie point P, is connect
Ground elastic slice is connected by contact chip with basic shell.
Beneficial effect
The utility model in electric detonator circuit by accessing semiconductor discharge tube, semiconductor discharge tube and electric detonator
Payment to a porter input terminal is in parallel, is connected, and provide a variety of solutions, semiconductor can be discharged with capsule by grounding elastic slice
Pipe is combined with patch capacitor and Chip-R to be mounted in electric detonator circuit, and semiconductor discharge tube parallel connection accesses electric detonator foot
Line input terminal, and it is in parallel with patch capacitor, Chip-R, and grounding elastic slice is connected by contact chip with electric detonator shell, is interfered
When signal enters from electric detonator payment to a porter input terminal, semiconductor discharge tube is connected, and protective module control circuit is interference-free；Work as hair
When raw lightning stroke or interference signal enter from capsule, patch capacitor, Chip-R conducting are discharged.Or in electric detonator
Two semiconductor discharge tubes are mounted in circuit, access electric detonator payment to a porter input terminal in parallel after two semiconductor discharge tube series connection,
When interference signal enters from electric detonator payment to a porter input terminal or generation is struck by lightning or interference signal enters from capsule, two and half
Conductive discharge pipe simultaneously turns on, and protective module control circuit is interference-free or a semiconductor discharge tube parallel connection accesses electronics
Detonator wire input terminal, grounding elastic slice and another semiconductor discharge tube are connected on electric detonator circuit board, and grounding elastic slice is logical
It crosses contact chip to be connected with electric detonator shell, different technical solutions can be selected as needed, prevent interference signal to electronics thunder
Pipe circuit interferes, and protects the electronic component on circuit, so as to effectively control electric detonator since interference signal causes
Explosion or phenomenon of miss-firing so that electric detonator usage safety performance is improved.
The it is proposed of the utility model creativeness, it is received to detonator wire using the extremely low semiconductor discharge tube of conducting resistance
Various interference signals, as long as crest voltage is greater than a certain voltage and the other circuit elements normal works of protection are connected rapidly.
Direct electric connecting relation is established especially between detonator wire and shell, conducting electric current is big, can restrain various frequencies
Influence of the interference signal of spectrum to electric detonator circuit, strong antijamming capability, wide adaptation range have fabulous promotion prospect.
In addition, by the high energy pulse of 2KV and 220V test, the equal circuit of electric detonator control module not its spark is also undamaged, from
And ensure that electric detonator will not maliciously be ignited, improve the safety of electric detonator.
Detailed description of the invention
1 scheme semiconductor discharge tube of attached drawing carries out protection structural schematic diagram to electric detonator circuit；
2 scheme semiconductor discharge tube of attached drawing carries out protection circuit diagram to electric detonator circuit；
3 scheme of attached drawing, two semiconductor discharge tube carries out protection structural schematic diagram to electric detonator circuit；
4 scheme of attached drawing, two semiconductor discharge tube carries out protection circuit diagram to electric detonator circuit；
5 scheme of attached drawing, two semiconductor discharge tube carries out protection structural schematic diagram to electric detonator circuit；
6 scheme of attached drawing, two semiconductor discharge tube carries out protection circuit diagram to electric detonator circuit；
7 semiconductor discharge tube working principle diagram of attached drawing.
Specific embodiment
The embodiments of the present invention 1
Such as attached drawing 1: the structure protected to electric detonator circuit, including semiconductor discharge tube A 1, patch capacitor C1
2, patch capacitor C2 3, Chip-R R1 4, Chip-R R2 5, grounding elastic slice 6, electric detonator circuit board 7, payment to a porter input terminal
9, module control circuit D 10, wherein payment to a porter input terminal 9, module control circuit D 10 are connected, and in payment to a porter input terminal 9 and module
Semiconductor discharge tube A 1, patch capacitor C1 2, patch capacitor C2 3, Chip-R R1 4, patch are accessed between control circuit D 9
Sheet resistance R2 5, grounding elastic slice 6.
Wherein 1 parallel connection of semiconductor discharge tube A accesses on electric detonator circuit board 7 payment to a porter input terminal 9, semiconductor electric discharge
Pipe A 1 is in parallel with patch capacitor C1 2, patch capacitor C2 3, Chip-R R1 4, Chip-R R2 5, patch capacitor C1 2,
Patch capacitor C2 3, Chip-R R1 4, Chip-R R2 5 are accessed on electric detonator circuit board 7 by mounting technology, ground connection
Elastic slice 6 and electric detonator circuit board 7 are connected to tie point M 701, and grounding elastic slice 6 is connected by contact chip 601 with basic shell.
It is packed into basic shell by the electric detonator circuit that above-mentioned method obtains, when interference signal is defeated from electric detonator payment to a porter
I.e. the voltage of circuit E is greater than 35V when entering end entrance, and semiconductor discharge tube A 1 is connected, and protective module control circuit D 10 is not by dry
It disturbs；When lightning stroke occurring or interference signal enters from basic shell, i.e. the voltage of circuit F is greater than 35V, patch capacitor C1 2, patch
Chip capacitor C2 3, Chip-R R1 4, the conducting of Chip-R R2 5 are discharged.
Patch capacitor C1 2,3 specification of patch capacitor C2 are 1nf/100v；The rule of Chip-R R1 4, Chip-R R2 5
Lattice are 1M.
The embodiments of the present invention 2
Such as attached drawing 3: the structure protected to electric detonator circuit, including semiconductor discharge tube A 1, semiconductor discharge tube
B 8, electric detonator circuit board 7, payment to a porter input terminal 9, grounding elastic slice 6, module control circuit D 10, wherein payment to a porter input terminal 9, mould
Block control circuit D 10 be connected, and between payment to a porter input terminal 9 and module control circuit D 10 access semiconductor discharge tube A 1,
Semiconductor discharge tube B 8, grounding elastic slice 6.
Wherein, in parallel after semiconductor discharge tube A 1 and semiconductor discharge tube B 8 connects to access 7 on electric detonator circuit board
Payment to a porter input terminal 9, grounding elastic slice 6 and electric detonator circuit board 7 be connected to tie point N 702, and grounding elastic slice 6 passes through contact chip
601 are connected with basic shell；
It is packed into basic shell by the electric detonator circuit that above-mentioned method obtains, interference signal is inputted from electric detonator payment to a porter
When end enters or generation is struck by lightning or interference signal enters from basic shell, that is, circuit E and the voltage of circuit F is caused to be greater than
35V, semiconductor discharge tube A 1 and semiconductor discharge tube B 8 conducting, protective module control circuit D 10 are interference-free.
The embodiments of the present invention 3
Such as attached drawing 5, to electric detonator circuit protection structure, including semiconductor discharge tube A 1, semiconductor discharge tube B 8, electricity
Sub- detonator circuit board 7, payment to a porter input terminal 9, grounding elastic slice 6, module control circuit D 10, wherein payment to a porter input terminal 9, module control
Circuit D 10 is connected, and access semiconductor discharge tube A1, semiconductor are put between payment to a porter input terminal 9 and module control circuit D 10
Fulgurite B 8, grounding elastic slice 6.
Wherein, 1 parallel connection of semiconductor discharge tube A accesses on electric detonator circuit board 7 payment to a porter input terminal 9, grounding elastic slice 6
It is connected on electric detonator circuit board 7 with semiconductor discharge tube B 8 by tie point P 703, grounding elastic slice 6 passes through contact chip
601 are connected with basic shell.
It is packed into basic shell by the electric detonator circuit that above-mentioned method obtains, interference signal is inputted from electric detonator payment to a porter
The voltage that end enters i.e. circuit E is greater than 35V, and semiconductor discharge tube A 1 is connected, and protective module control circuit D10 is interference-free；Or
When person occurs to be struck by lightning or interference signal enters from basic shell, i.e., the voltage of circuit F is greater than 35V, and semiconductor discharge tube B2 is led
Logical, protective module control circuit is interference-free.
Experimental example
Electric detonator control module is produced according to the method for embodiment 1-3, and three kinds of electric detonator control modules are carried out
Electrostatic test, 2KV test, 220V test
Test method:
1, electrostatic test:
(1), electric detonator control module tests the resistance between payment to a porter and shell by multimeter after loading onto basic shell:
A ensures semiconductor discharge tube without rosin joint；B contact chip contacts well with basic shell；C payment to a porter and basic shell are without short circuit.
(2), basic shell is connect by 100K resistance with electrostatic tester ground wire.
(3), it is 12S by initiator setting delay, electric detonator control module is added by electrostatic tester after detonation
Electrostatic.
Electrostatic potential successively tests 6KV, 7KV, 8KV, 10KV, and module verification does not pass through or voltage is more than to stop after 10KV,
Change next module.
(4), experimental data experimental data is recorded and analyzed.
2,2KV is tested:
Electric detonator control module is connected on high energy pulse initiator output end, high energy pulse initiator YD- is passed through
500L detonates after charging to 2KV high pressure.Record the resistance between electric detonator control module situation on fire and payment to a porter.
3,220V is tested:
One payment to a porter string 100R resistance of electric detonator control module is followed by 220V, experimental conditions and module foot are recorded
Resistance between line.
Experimental result
When carrying out antistatic test, each embodiment is carried out with 25 control modules, and experimental result is as shown in table 1
1 electrostatic test result of table
When carrying out anti-electric detonator initiation device YD-500L application 2KV high pressure, the 25 electric detonators controls of each embodiment
Module is tested, and the results are shown in Table 2
2 2KV voltage tester result of table
When carrying out 220V test, the electric detonator control module of the preparation of embodiment 1-3 can be tested by 220V, not had
Spark is generated, electric detonator control module is not damaged.
3 220V voltage tester result of table
It is found by the above experimental analysis, three kinds of sides that electric detonator circuit is protected provided by the utility model
Method can apply the test of 2KV high energy pulse and 220V voltage tester by electric cap, and not generate spark, ensure that electronics thunder
Pipe control module cannot be detonated by electric detonator initiation device, effectively prevent the feelings maliciously detonated since electric detonator is lost
Condition.In addition, when carrying out electrostatic test, electric detonator control module circuit that embodiment 1 obtains can under 10KV static conditions,
There is 95% or more electric detonator control module not damage, and the electric detonator control module of embodiment 2 and embodiment 3 also can
Pass through the electrostatic test of 6KV.
Described in the utility model to be not limited to embodiment described in specific embodiment, those skilled in the art are according to this
The technical solution of utility model obtains other embodiments, also belongs to the technological innovation scope of the utility model.Obviously originally
The technical staff in field can carry out spirit and model of the various modification and variations without departing from the utility model to the utility model
It encloses.In this way, if these modifications and variations of the present invention belong to the claims of the present invention and its equivalent technology range
Interior, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of electric detonator circuit protection structure, which is characterized in that including semiconductor discharge tube A (1), grounding elastic slice (6),
Electric detonator circuit board (7), payment to a porter input terminal (9), module control circuit D (10), wherein payment to a porter input terminal (9) and module control
Circuit D (10) is connected to form circuit, and the access semiconductor in parallel between payment to a porter input terminal (9) and module control circuit D (10)
Discharge tube and grounding elastic slice (6).
2. electric detonator circuit protection structure according to claim 1, it is characterised in that: grounding elastic slice (6) passes through module
Control protection electric circuit parallel connection accesses between payment to a porter input terminal (9) and module control circuit D (10).
3. electric detonator circuit protection structure according to claim 1, which is characterized in that the module control protection electricity
The composition on road includes patch capacitor and Chip-R, and wherein patch capacitor includes patch capacitor C1 (2) and patch capacitor C2
(3), Chip-R includes Chip-R R1 (4) and Chip-R R2 (5)；Patch capacitor C1 (2) and Chip-R R1 (4)
After series connection again between access payment to a porter input terminal (9) in parallel and module control circuit D (10), patch capacitor C2 (3) and Chip-R
After R2 (5) series connection again between access payment to a porter input terminal (9) in parallel and module control circuit D (10)；Patch capacitor C1 (2) and
The series sequence of Chip-R R1 (4) and series sequence on the contrary, patch capacitor C1 (2) and Chip-R R1 (4) connection
Point is connected to the tie point of patch capacitor C2 (3) and Chip-R R2 (5), and the tie point is connect with grounding elastic slice (6).
4. electric detonator circuit protection structure according to claim 1, it is characterised in that: the semiconductor discharge tube packet
Include semiconductor discharge tube A (1) and semiconductor discharge tube B (8), semiconductor discharge tube A (1) and semiconductor discharge tube B (8) string
In parallel after connection to access between payment to a porter input terminal (9) and module control circuit D (10), grounding elastic slice (6) connects in semiconductor discharge tube A
(1) between semiconductor discharge tube B (8), and tie point N (702), grounding elastic slice are connected to electric detonator circuit board (7)
(6) it is connected by contact chip (601) with basic shell.
5. electric detonator circuit protection structure according to claim 1, it is characterised in that: the semiconductor discharge tube packet
Include semiconductor discharge tube A (1) and semiconductor discharge tube B (8), semiconductor discharge tube A (1) access payment to a porter input terminal (9) in parallel
Between module control circuit D (10), one end of an end Jie payment to a porter input terminal (9) of semiconductor discharge tube B (8), conductor is put
The other end of fulgurite B (8) is connect with grounding elastic slice (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298689.0U CN209085460U (en) | 2018-08-13 | 2018-08-13 | Electric detonator circuit protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298689.0U CN209085460U (en) | 2018-08-13 | 2018-08-13 | Electric detonator circuit protection structure |
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| Publication Number | Publication Date |
|---|---|
| CN209085460U true CN209085460U (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821298689.0U Active CN209085460U (en) | 2018-08-13 | 2018-08-13 | Electric detonator circuit protection structure |
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| CN (1) | CN209085460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186381A (en) * | 2018-08-13 | 2019-01-11 | 贵州全安密灵科技有限公司 | The method and structure that electric detonator circuit is protected |
-
2018
- 2018-08-13 CN CN201821298689.0U patent/CN209085460U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186381A (en) * | 2018-08-13 | 2019-01-11 | 贵州全安密灵科技有限公司 | The method and structure that electric detonator circuit is protected |
| CN109186381B (en) * | 2018-08-13 | 2023-11-28 | 贵州全安密灵科技有限公司 | Method and structure for protecting electronic detonator circuit |
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