CN203689032U - Double-stage serial electric blasting separation circuit - Google Patents
Double-stage serial electric blasting separation circuit Download PDFInfo
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- CN203689032U CN203689032U CN201320678628.8U CN201320678628U CN203689032U CN 203689032 U CN203689032 U CN 203689032U CN 201320678628 U CN201320678628 U CN 201320678628U CN 203689032 U CN203689032 U CN 203689032U
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- separation
- electric detonation
- current
- circuit
- firer
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- Expired - Fee Related
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Abstract
Disclosed is a double-stage serial electric blasting separation circuit which relates to an interface circuit. The electric blasting separation circuit includes a first-stage electric blasting separation initiating explosive element Rd1, a first-stage electric blasting separation electric connector X1F, a first current-limiting resistor RX1, a second current-limiting resistor RX2, a second-stage electric blasting separation initiating explosive element Rd2, a second-stage electric blasting separation electric connector X2F and a power supply VBF. The Rd1 and the Rd2 are equal in resistance value R. The Rd1 is connected to X1F in series to form a first-stage separation igniting branch; the Rd2 is connected to X2F in series to form a second-stage separation igniting branch; the first-stage separation igniting branch is connected in parallel with the second-stage separation igniting branch; the positive pole of the parallel circuit is connected to the RX1 in series and then is connected to the power supply VBF; the negative pole of the parallel circuit is connected to the ground by X2F and the igniting current of the Rd2 is I, wherein VBF/(RX1+RX2+R)>= I. By employing the electric blasting separation circuit, the sequential logic of the double-stage serial electric blasting separation driven by a single control command is achieved.
Description
Technical field
The utility model relates to a kind of interface circuit, is particularly applicable to electric detonation separation circuit.
Background technology
Require and in traditional flight control system upgrading process for the miniaturization of flight control system, cramped construction, due to the deficiency of system hardware electric interfaces resource, requirement increases controlled cell and does not increase control sequential command signal and electric interfaces connector conventionally.Prior art cannot realize single steering order and drive two-stage electric detonation to separate.
Utility model content
Technology of the present utility model is dealt with problems and is: overcomes the deficiencies in the prior art, a kind of two-stage tandem electric detonation separation circuit is provided, and succinct and practical.
Technical solution of the present utility model is: a kind of two-stage tandem electric detonation separation circuit, comprise that chopped-off head electric detonation separates firer's element Rd1, chopped-off head electric detonation separation connector X1F, the first current-limiting resistance RX1, the second current-limiting resistance RX2, secondary electric detonation separation firer element Rd2, secondary electric detonation separation connector X2F and power supply V
bF, chopped-off head electric detonation separation firer element Rd1 separates firer's element Rd2 and has identical resistance value R with secondary electric detonation; Chopped-off head electric detonation separates firer's element Rd1 series connection access electric detonation separation connector X1F, forms chopped-off head and separates igniting branch road; Secondary electric detonation separates after firer's element Rd2 connects with the second current-limiting resistance RX2 and accesses electric detonation separation connector X2F, forms secondary separation igniting branch road; Chopped-off head separates igniting branch road and the secondary igniting branch circuit parallel connection that separates, and the positive pole of the circuit after parallel connection is connected after the first current-limiting resistance RX1 and is connected to power supply VBF, and the negative pole of the circuit after parallel connection is through secondary electric detonation separation connector X2F ground connection; The firing current that secondary electric detonation separates firer's element Rd2 is I, V
bF÷ (RX1+RX2+R)>=I.
Described the first current-limiting resistance RX1, the second current-limiting resistance RX2 all should select RY type film oxide resistor.
The utility model beneficial effect is compared with prior art: the sequential logic that the utility model utilizes single steering order to drive two-stage electric detonation to separate, this circuit hardware is succinct and practical, the operating mode of the separation connector that adapts to especially to need in flight control system to carry out electric detonation separation command in control signal, electric interfaces connector resource-constrained.In addition, the utility model selects RY type film oxide resistor as current-limiting resistance, under the situation of equal-wattage parameter, in the time having large electric current to pass through in circuit, the stability of RY type resistance is higher, can guarantee that its overload lotus fusing causes the time of open circuit to be longer than conventional, electric-resistance, thereby can before firer's element has reliably been got angry, guarantee path normal power supply.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory schematic diagram;
Fig. 2 is the detonated equivalence principle schematic diagram of rear circuit of chopped-off head firer element of the present utility model.
Embodiment
The utility model utilizes the ionisation effect in resistance difference, cable pressure drop and the firer's element ignition process in two-stage electric detonation separation circuit etc., current clamp on firer's element in secondary electric detonation separation circuit is got angry below threshold reliable, it cannot be worked before chopped-off head firer element detonates completely; After chopped-off head ignition element detonates completely, secondary firer's element detonates, and drives two-stage electric detonation separation priming system successively to detonate thereby reach single control signal, realizes the object of the steering logic of two-stage tandem electric detonation separation.The operating mode of the separation connector that this circuit is applicable to need in flight control system to carry out electric detonation separation command in control signal, electric interfaces connector resource-constrained.
As shown in Figure 1, the utility model comprises that chopped-off head electric detonation separates firer's element Rd1, chopped-off head electric detonation separation connector X1F, the first current-limiting resistance RX1, the second current-limiting resistance RX2, secondary electric detonation separation firer element Rd2, secondary electric detonation separation connector X2F and power supply V
bF.X1F, X2F two electric detonation separation connectors can be the model specification that number of contacts is different, but need to guarantee that chopped-off head electric detonation separation firer element Rd1 separates firer's element Rd2 and has identical resistance value R with secondary electric detonation.Chopped-off head electric detonation separates firer's element Rd1 series connection access electric detonation separation connector X1F and forms chopped-off head separation igniting branch road, and the electric current of this branch road is I3; Secondary electric detonation separates firer's element Rd2 and forms the secondary igniting branch road that separates with the second current-limiting resistance RX2 series connection access electric detonation separation connector X2F, and the electric current of this branch road is I2; Chopped-off head separates igniting branch road and the secondary igniting branch circuit parallel connection that separates, and the positive pole of the circuit after parallel connection is connected after the first current-limiting resistance RX1 and is connected to power supply V
bF, the negative pole of the circuit after parallel connection is through secondary electric detonation separation connector X2F ground connection, and I2 and I3 are in parallel imports in total loop, and the circuit in total loop is I1.Power supply V
bFbe connected with outside electric detonation separation control circuit.
The resistance value that in circuit, the first current-limiting resistance RX1, the second current-limiting resistance RX2 separate firer's element Rd2 with secondary electric detonation is respectively RX1, RX2 and R.The first current-limiting resistance RX1, the second current-limiting resistance RX2 all should select RY type film oxide resistor.The feature of this series resistance device is that resistance is low, overload lotus ability strong, good stability.Under the situation of equal-wattage parameter, in the time having large electric current to pass through in circuit, the steady nail of RY type resistance is higher, can guarantee that its overload lotus fusing causes the time of open circuit to be longer than conventional, electric-resistance, thereby can before firer's element has reliably been got angry, guarantee path normal power supply.The choice criteria of the resistance of current-limiting resistance is: must guarantee the work of chopped-off head igniting branch road complete after secondary firing circuit can normally work.If it is I, V that secondary electric detonation separates the firing current of firer's element Rd2
bF÷ (RX1+RX2+R)>=I.For example, the reliable firing current of conventional insensitiveness firer element is generally 3A, in the time selecting current-limiting resistance, meets I=V
bF÷ (RX1+RX2+R)>=3A.
According to Ohm law, when electric detonation separation control circuit sends separation command, V
bFafter loading, I1=I2+I3, due to chopped-off head, to separate igniting branch road identical with the secondary resistance value that separates firer's element Rd1 and Rd2 in igniting branch road, the second current limiting resistance R X2 now connects in secondary separation igniting branch road, electric resistance partial pressure effect in series-parallel circuit can guarantee I3>I2, therefore the electric current I 3 separating in igniting branch road at chopped-off head must be greater than the electric current I 2 in secondary separation igniting branch road.Therefore chopped-off head separation igniting branch road completes before electric detonation separation formation open circuit, and the electric current in the road of secondary separation igniting will be clamped at below the firing current value of secondary electric detonation separation firer element Rd2 always.
As shown in Figure 2, after the electric detonation on road that chopped-off head separates igniting has separated, the I1 in total loop changes, new I1 '=V
bF÷ (RX1+RX2+Rd), based on the selection of current-limiting resistance before, so I1 ' is more than or equal to the firing current of secondary electric detonation separation firer element Rd2.Thus, can realize the sequential logic that single steering order drives two-stage electric detonation to separate.
Claims (2)
1. a two-stage tandem electric detonation separation circuit, it is characterized in that: comprise that chopped-off head electric detonation separates firer's element Rd1, chopped-off head electric detonation separation connector X1F, the first current-limiting resistance RX1, the second current-limiting resistance RX2, secondary electric detonation separation firer element Rd2, secondary electric detonation separation connector X2F and power supply VBF, chopped-off head electric detonation separation firer element Rd1 separates firer's element Rd2 and has identical resistance value R with secondary electric detonation; Chopped-off head electric detonation separates firer's element Rd1 series connection access electric detonation separation connector X1F, forms chopped-off head and separates igniting branch road; Secondary electric detonation separates after firer's element Rd2 connects with the second current-limiting resistance RX2 and accesses electric detonation separation connector X2F, forms secondary separation igniting branch road; Chopped-off head separates igniting branch road and the secondary igniting branch circuit parallel connection that separates, and the positive pole of the circuit after parallel connection is connected after the first current-limiting resistance RX1 and is connected to power supply VBF, and the negative pole of the circuit after parallel connection is through secondary electric detonation separation connector X2F ground connection; The firing current that secondary electric detonation separates firer's element Rd2 is I, V
bF÷ (RX1+RX2+R)>=I.
2. a kind of two-stage tandem electric detonation separation circuit according to claim 1, is characterized in that: described the first current-limiting resistance RX1, the second current-limiting resistance RX2 all should select RY type film oxide resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678628.8U CN203689032U (en) | 2013-10-30 | 2013-10-30 | Double-stage serial electric blasting separation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678628.8U CN203689032U (en) | 2013-10-30 | 2013-10-30 | Double-stage serial electric blasting separation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689032U true CN203689032U (en) | 2014-07-02 |
Family
ID=51010910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320678628.8U Expired - Fee Related CN203689032U (en) | 2013-10-30 | 2013-10-30 | Double-stage serial electric blasting separation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203689032U (en) |
-
2013
- 2013-10-30 CN CN201320678628.8U patent/CN203689032U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20171030 |