CN103033100A - Anti-static structure of electronic detonator - Google Patents
Anti-static structure of electronic detonator Download PDFInfo
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- CN103033100A CN103033100A CN2012105402399A CN201210540239A CN103033100A CN 103033100 A CN103033100 A CN 103033100A CN 2012105402399 A CN2012105402399 A CN 2012105402399A CN 201210540239 A CN201210540239 A CN 201210540239A CN 103033100 A CN103033100 A CN 103033100A
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Abstract
The invention provides an anti-static structure of an electronic detonator, wherein two leg wires of the electronic detonator are electrically connected with a control circuit of a control circuit board. The anti-static structure of the electronic detonator is characterized by further comprising a discharge metal connecting piece; one end of the discharge metal connecting piece is electrically connected with a metal casing of the electronic detonator; two anti-static electronic devices are connected between the other end of the discharge metal connecting piece and one leg wire, as well as between the other end of the discharge metal connecting piece and the other leg wire respectively; and the anti-static electronic devices are transient suppression diodes, discharge tubes or voltage dependent resistors. By additionally arranging the anti-static structure on the electronic detonator, electricity can be preferentially discharged through the anti-static devices when the electronic detonator carries out electrostatic discharge, so that an error explosion can be prevented in the production and use processes; and moreover, one leg wire of the electronic detonator is connected with a first metal connecting piece and a second metal connecting piece in a manner of metal compression joint, the connecting operation is simple, tensile resistance is strong, and the electronic detonator can be prevented from being damaged by an external force in the production and use processes.
Description
Technical field
The present invention relates to a kind of detonator structure, particularly the electrostatic prevention structure of parallel electric detonator.
Background technology
Electric detonator, it comprises payment to a porter, the control circuit board with delay chip, point of amorce and priming successively.When using, to be connected with described payment to a porter for the bus of output time break, then export the serial signal that detonates, described delay chip is subscribed the time-delay of duration, then described control circuit board passes to point of amorce with time break by the bridge silk, realizes initiation control.
The payment to a porter of existing electric detonator is injection molded with sealing-plug at the detonator end, mostly adopts soldering to be connected with 2 of the reservation pads of control circuit board.The type of attachment of the bridge silk between control circuit board and the point of amorce generally also is like this.These products all exist a larger problem to be: not electrical connection between payment to a porter and the detonator with metal shell shell, when there are static in payment to a porter and shell, can't release, and cause easily potential safety hazard.
Make the gland way although proposed use conductive rubber or conductive engineering plastics in the patent application document 98232749.8, but this way can only reduce the static that payment to a porter and detonator produce mutually, when producing or use personnel's static electrification contact detonator metal-back of detonator, can't avoid managing the generation of interior electrostatic discharge spark.
As seen, structurally also there is potential safety hazard in existing electric detonator, needs those skilled in the art to concentrate on studies and is solved.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to: a kind of electrostatic prevention structure of electric detonator is provided, can initiatively prevents between payment to a porter and the detonator with metal shell shell owing to static sends electric spark, the quick-fried detonator of mistake.
For achieving the above object, the technical solution used in the present invention is:
A kind of electrostatic prevention structure of electric detonator, two payment to a porter of described electric detonator are electrically connected with the control circuit of control circuit board respectively, it is characterized in that: also comprise the discharge metal connector, one end of described discharge metal connector is electrically connected with the metal shell of electric detonator, is connected with respectively an anlistatig electronic device between the other end and described two payment to a porter.
The electrostatic prevention structure of described electric detonator, wherein: described anlistatig electronic device is transition twin zener dioder, discharge tube or piezo-resistance.
The electrostatic prevention structure of described electric detonator, wherein: be connected with the second metal connecting piece by the first metal connecting piece respectively between the control circuit of described two payment to a porter and described control circuit board.
The electrostatic prevention structure of described electric detonator, wherein: described the first metal connecting piece, the second metal connecting piece and discharge metal connector mutually insulated, and be integrated by high-resistance material or insulating materials injection mo(u)lding.
One end of described the first metal connecting piece, the second metal connecting piece and discharge metal connector all is connected and fixed by paster reflow soldering process and described control circuit board, and all is covered with electronic seal glue on described the first metal connecting piece, the second metal connecting piece and discharge metal connector, control circuit board positive and negative and point of amorce side.
The other end of described first and second metal connecting piece links to each other by the crimping mode respectively with described two payment to a porter.
The electrostatic prevention structure of described electric detonator, wherein: continuously twice formation of bending is Z-shaped for described discharge metal connector, and the described other end of described discharge metal connector is clipped between the inwall of the outer wall of an insulating sealing plug in the payment to a porter and described metal shell.
The electrostatic prevention structure of described electric detonator; wherein: described antistatic device is piezo-resistance or transition twin zener dioder; increase an insurance in a payment to a porter therein; the protection operation voltage value of described insurance is higher than the electric detonator normal working voltage; electric detonator is received when being higher than antistatic device signal; insurance disconnects, and control circuit board has been carried out further protection.
The electrostatic prevention structure of described electric detonator, wherein: described insurance is that disposable insurance maybe can recover insurance.
The electrostatic prevention structure of described electric detonator, wherein: described electric detonator is parallel electric detonator.
Compared with prior art, the beneficial effect that the present invention has is: the present invention is by increasing antistatic structure at electric detonator, make it when static discharge occurs, can preferentially release by anlistatig device, so can prevent that in production and use procedure mistake is quick-fried.And, and all be covered with electronic seal glue at connector and control circuit board positive and negative, point of amorce side, guarantee that it is antistatic, the stretching resistance performance.Also have to be exactly: the present invention has adopted the metal crimp mode being connected between the payment to a porter of electric detonator and first, second metal connecting piece, and attended operation is simple, and stretching resistance is strong, can avoid electric detonator in production and use procedure owing to external force is damaged.
Description of drawings
Fig. 1 is the syndeton schematic perspective view of payment to a porter and circuit board among the present invention;
Fig. 2 is the syndeton front plan view of payment to a porter and circuit board among the present invention;
Fig. 3 is the syndeton side plan view of payment to a porter and circuit board among the present invention;
Fig. 4 is the decomposition texture schematic diagram of payment to a porter splicing ear of the present invention;
Fig. 5 is the injection mo(u)lding schematic diagram of payment to a porter splicing ear of the present invention;
Fig. 6 is anti-static circuit structural representation provided by the invention.
The specific embodiment
See also Fig. 1, Fig. 2, shown in Figure 3, the electrostatic prevention structure of electric detonator provided by the invention, mainly be applicable to parallel electric detonator, at first be two payment to a porter 304,305 and control circuit board 300 between increase by the first metal connecting piece 11, be lamellar body in the second metal connecting piece 12 and the discharge metal connector 13(present embodiment), described first and second metal connecting piece 11,12 are connected to described two payment to a porter 304,305 and the control circuit 303(of described control circuit board 300 as shown in Figure 6) between, one end of discharge metal connector 13 is fixed on described control circuit 303 plates 300, the other end be close to insulating sealing plug 20 periphery and the electric detonator of close control circuit board metal shell 302(as shown in Figure 6) the inwall conduction be connected.
Such as Fig. 4, shown in Figure 5, described three metal connecting pieces 11,12,13 mutually insulateds, and be integrated by high-resistance material or insulating materials injection mo(u)lding, three metal connecting pieces 11,12, an end of 13 is all by high speed, paster reflow soldering process and described control circuit 303 plates 300 are connected and fixed reliably, wherein, described first and second metal connecting piece 11,12 the other end is extended with respectively lateral plate 111,121, thereby can with described two payment to a porter 304,305 link to each other by the crimping mode respectively, twice formation of bending is Z-shaped continuously for discharge metal connector 13, and the other end of discharge metal connector 13 under the resilient force of the outer surface of sealing-plug 20, forms desirable electrical connection with the metal shell 302 of detonator when tight mouthful of electric detonator.
For make on the control circuit board other exposed metal dots when static is arranged not the metal shell to detonator discharge, the present invention also above three metal connecting pieces, all be covered with the electronic seal glue of high resistant or insulation on the control circuit board positive and negative, point of amorce side, guarantee that it is to the high resistant electrical property of static, static is preferentially released to the metal shell of detonator by the discharge metal connector, doing so also to increase the stretching resistance of the metalwork that links to each other with payment to a porter performance, avoids the pad of control circuit board damaged by the payment to a porter pulling force.
Wherein, can be according to general electronic connecting line bundle crimping rule and the parameter designing such as payment to a porter size, material with the size of first and second metal connecting pieces 11 of described payment to a porter 304,305 crimping, 12 pressure connection terminal, be not limited to the application Fig. 4, situation shown in Figure 5.
As shown in Figure 6, it is anti-static circuit structural representation provided by the invention, two payment to a porter 304,305 link to each other with the control circuit 303 of control circuit 303 plates 300 by the first and second metal connecting piece 11,12 respectively, one end of discharge metal connector 13 and metal shell 302 conductions are connected, and are connected by an anlistatig electronic device 102,103 respectively between the other end and described the first metal connecting piece 11 and the second metal connecting piece 12.Described anlistatig electronic device 102,103 can be selected: transition twin zener dioder, discharge tube or piezo-resistance, static electricity discharge guarantees that electric detonator does not occur to miss quick-fried rapidly.
As shown in Figure 6; when the antistatic device of selecting is piezo-resistance or transition twin zener dioder; its protection operation voltage value may be selected to be a little more than the electric detonator normal working voltage; at this moment; increase in therein payment to a porter 304,305 one can recover to insure 104 after, also can make electric detonator possess the defencive function of anti overvoltage.Operation principle is: when occurring on the circuit exceeding the voltage signal of described protection operation voltage value; described piezo-resistance or transition twin zener dioder can be opened; form heavy current impact, make and describedly recover to insure 104 and heat up and disconnect, thereby protected the control chip etc. of the electric detonator of back.After described high-voltage signal disappears, can recover to insure 104 and can cooling connect, electric detonator can work again.Certainly, the magnitude of voltage of described high-voltage signal can not surpass and can recover to insure 104 the highest use voltage, otherwise describedly recovers to insure 104 and will forever disconnect.Certainly, adopt and above-mentionedly recover to insure 104, consideration be can recover normal operation after high-voltage signal disappears.If select to recover to insure 104 with disposable insurance replacement is described, after disconnection is worked in disposable insurance, can not recover the function that electric detonator normally detonates, but when normally using, this situation can not run into.So as a kind of energy anti overvoltage the quick-fried function of mistake not occuring selects also to be fine.
Hence one can see that, and the present invention makes it when static discharge occurs by increasing antistatic structure at electric detonator, can preferentially release by anlistatig device, so can prevent that in production and use procedure mistake is quick-fried.And, the present invention the payment to a porter 304 of electric detonator, 305 with first, second metal connecting piece between be connected and adopted the metal crimp mode, attended operation is simple, stretching resistance is strong, can avoid electric detonator produce and use procedure in owing to external force is damaged.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, in the situation that does not break away from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.
Claims (10)
1. the electrostatic prevention structure of an electric detonator, two payment to a porter of described electric detonator are electrically connected with the control circuit of control circuit board respectively, it is characterized in that: also comprise the discharge metal connector, one end of described discharge metal connector is electrically connected with the metal shell of electric detonator, is connected with respectively an anlistatig electronic device between the other end and described two payment to a porter.
2. the electrostatic prevention structure of electric detonator according to claim 1, it is characterized in that: described anlistatig electronic device is transition twin zener dioder, discharge tube or piezo-resistance.
3. the electrostatic prevention structure of electric detonator according to claim 1 is characterized in that: be connected with the second metal connecting piece by the first metal connecting piece respectively between the control circuit of described two payment to a porter and described control circuit board.
4. the electrostatic prevention structure of electric detonator according to claim 3 is characterized in that: described the first metal connecting piece, the second metal connecting piece and discharge metal connector mutually insulated, and be integrated by high-resistance material or insulating materials injection mo(u)lding.
5. the electrostatic prevention structure of electric detonator according to claim 4, it is characterized in that: an end of described the first metal connecting piece, the second metal connecting piece and discharge metal connector all is connected and fixed by paster reflow soldering process and described control circuit board, and all is covered with electronic seal glue on described the first metal connecting piece, the second metal connecting piece and discharge metal connector, control circuit board positive and negative and point of amorce side.
6. the electrostatic prevention structure of electric detonator according to claim 5, it is characterized in that: the other end of described first, second metal connecting piece links to each other by the crimping mode respectively with described two payment to a porter.
7. according to claim 1 or the electrostatic prevention structure of 4 described electric detonators, it is characterized in that: continuously twice formation of bending is Z-shaped for described discharge metal connector, and the described other end of described discharge metal connector is clipped between the inwall of the outer wall of an insulating sealing plug and described metal shell.
8. the electrostatic prevention structure of electric detonator according to claim 1; it is characterized in that: described antistatic device is piezo-resistance or transition twin zener dioder; increase an insurance in a payment to a porter therein, the protection operation voltage value of described insurance is higher than the electric detonator normal working voltage.
9. the electrostatic prevention structure of electric detonator according to claim 8 is characterized in that: described insurance is that disposable insurance maybe can recover insurance.
10. the electrostatic prevention structure of electric detonator according to claim 1, it is characterized in that: described electric detonator is parallel electric detonator.
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| CN201210540239.9A CN103033100B (en) | 2012-12-13 | 2012-12-13 | A kind of electrostatic prevention structure of electric detonator |
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| CN201210540239.9A CN103033100B (en) | 2012-12-13 | 2012-12-13 | A kind of electrostatic prevention structure of electric detonator |
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| CN103033100B CN103033100B (en) | 2015-09-16 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315931A (en) * | 2014-11-18 | 2015-01-28 | 北京理工大学 | Piezoresistance type efficient electrostatic protection bridge-wire electric detonator |
| CN104330001A (en) * | 2014-11-18 | 2015-02-04 | 北京理工大学 | High-effect electrostatic protective component of disk type voltage dependent resistor for bridge-wire electric detonator |
| CN104349584A (en) * | 2014-11-18 | 2015-02-11 | 北京理工大学 | Disc-shaped electrostatic protection PCB (Printed Circuit Board) |
| CN104390532A (en) * | 2014-11-18 | 2015-03-04 | 北京理工大学 | Wafer type TVS tube type high-efficiency static protection assembly for ignition wire type electric detonator |
| CN104390531A (en) * | 2014-11-18 | 2015-03-04 | 北京理工大学 | TVS tube type high-efficiency static-protection igniter wire type electric detonator |
| CN104880132A (en) * | 2014-02-18 | 2015-09-02 | 北京北方邦杰科技发展有限公司 | An electronic detonator producing method and an electronic detonator produced by the method |
| CN107636416A (en) * | 2015-03-30 | 2018-01-26 | 马克萨姆控股有限公司 | Protection circuit in blasting system |
| 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 |
| CN109341445A (en) * | 2018-08-13 | 2019-02-15 | 贵州全安密灵科技有限公司 | A kind of method and structure that electric detonator circuit is protected using metal sleeve |
| CN109373835A (en) * | 2018-10-19 | 2019-02-22 | 贵州全安密灵科技有限公司 | A kind of electric detonator control module structure |
| CN110418493A (en) * | 2019-07-04 | 2019-11-05 | 榆林学院 | A kind of varistor electrostatic protection component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059232U (en) * | 1989-09-30 | 1990-07-11 | 宁夏石嘴山矿务局化工厂 | Igniting element of anti-static millisecond delay electric detonator |
| CN2683648Y (en) * | 2004-03-19 | 2005-03-09 | 丁永杰 | Industrial detonator casing and detonator made thereby |
| CN201184775Y (en) * | 2008-03-21 | 2009-01-21 | 安徽理工大学 | Programmable intelligent electronic time-delay electric detonator |
| CN201218704Y (en) * | 2008-04-28 | 2009-04-08 | 北京铱钵隆芯科技有限责任公司 | Electronic detonator control circuit component |
| CN101811224A (en) * | 2009-08-20 | 2010-08-25 | 北京维深数码科技有限公司 | Bridging fibril welding set for digital electronic detonator |
| CN202267419U (en) * | 2011-10-09 | 2012-06-06 | 国营红林机械厂 | Device for destroying initiating explosive devices with shells |
| CN202470918U (en) * | 2012-02-20 | 2012-10-03 | 秦志春 | Electromagnetic reinforcement semiconductor bridge detonator |
-
2012
- 2012-12-13 CN CN201210540239.9A patent/CN103033100B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059232U (en) * | 1989-09-30 | 1990-07-11 | 宁夏石嘴山矿务局化工厂 | Igniting element of anti-static millisecond delay electric detonator |
| CN2683648Y (en) * | 2004-03-19 | 2005-03-09 | 丁永杰 | Industrial detonator casing and detonator made thereby |
| CN201184775Y (en) * | 2008-03-21 | 2009-01-21 | 安徽理工大学 | Programmable intelligent electronic time-delay electric detonator |
| CN201218704Y (en) * | 2008-04-28 | 2009-04-08 | 北京铱钵隆芯科技有限责任公司 | Electronic detonator control circuit component |
| CN101811224A (en) * | 2009-08-20 | 2010-08-25 | 北京维深数码科技有限公司 | Bridging fibril welding set for digital electronic detonator |
| CN202267419U (en) * | 2011-10-09 | 2012-06-06 | 国营红林机械厂 | Device for destroying initiating explosive devices with shells |
| CN202470918U (en) * | 2012-02-20 | 2012-10-03 | 秦志春 | Electromagnetic reinforcement semiconductor bridge detonator |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880132A (en) * | 2014-02-18 | 2015-09-02 | 北京北方邦杰科技发展有限公司 | An electronic detonator producing method and an electronic detonator produced by the method |
| CN104315931A (en) * | 2014-11-18 | 2015-01-28 | 北京理工大学 | Piezoresistance type efficient electrostatic protection bridge-wire electric detonator |
| CN104330001A (en) * | 2014-11-18 | 2015-02-04 | 北京理工大学 | High-effect electrostatic protective component of disk type voltage dependent resistor for bridge-wire electric detonator |
| CN104349584A (en) * | 2014-11-18 | 2015-02-11 | 北京理工大学 | Disc-shaped electrostatic protection PCB (Printed Circuit Board) |
| CN104390532A (en) * | 2014-11-18 | 2015-03-04 | 北京理工大学 | Wafer type TVS tube type high-efficiency static protection assembly for ignition wire type electric detonator |
| CN104390531A (en) * | 2014-11-18 | 2015-03-04 | 北京理工大学 | TVS tube type high-efficiency static-protection igniter wire type electric detonator |
| CN104390531B (en) * | 2014-11-18 | 2017-11-03 | 北京理工大学 | A kind of high-effect electrostatic protection bridge-wire electric detonator of TVS pipe type |
| CN107636416B (en) * | 2015-03-30 | 2020-02-28 | 马克萨姆控股有限公司 | Electronic detonator, blasting system comprising same and method for manufacturing same |
| CN107636416A (en) * | 2015-03-30 | 2018-01-26 | 马克萨姆控股有限公司 | Protection circuit in blasting system |
| 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 |
| CN109341445A (en) * | 2018-08-13 | 2019-02-15 | 贵州全安密灵科技有限公司 | A kind of method and structure that electric detonator circuit is protected using metal sleeve |
| CN109341445B (en) * | 2018-08-13 | 2023-10-13 | 贵州全安密灵科技有限公司 | Method and structure for protecting electronic detonator circuit by adopting metal sleeve |
| 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 |
| CN109373835A (en) * | 2018-10-19 | 2019-02-22 | 贵州全安密灵科技有限公司 | A kind of electric detonator control module structure |
| CN109373835B (en) * | 2018-10-19 | 2021-04-06 | 贵州全安密灵科技有限公司 | Electronic detonator control module structure |
| CN110418493A (en) * | 2019-07-04 | 2019-11-05 | 榆林学院 | A kind of varistor electrostatic protection component |
| CN110418493B (en) * | 2019-07-04 | 2022-04-05 | 榆林学院 | Piezoresistor electrostatic protection assembly |
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