Initiating explosive device ignition circuit and module

An ignition circuit and pyrotechnics technology, applied in the field of pyrotechnics ignition, can solve the problems of increasing system volume, weight and system complexity, complex protection circuits, control signal jitter, etc., to expand the application range, eliminate influence, reduce Effect of Voltage Demand

Pending Publication Date: 2021-12-14
BEIJING KEYTONE ELECTRONICS RELAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the pyrotechnic ignition circuit controlled by conventional relays, such as figure 1 As shown, the input side of the magnetic isolation circuit requires a relatively high input voltage, and its output side shares a part of the circuit with the ignition power supply. The relatively high voltage of the ignition power supply will affect the relatively low voltage of the detection power supply and aff

Method used

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  • Initiating explosive device ignition circuit and module
  • Initiating explosive device ignition circuit and module
  • Initiating explosive device ignition circuit and module

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Specific Example 1

[0032] One kind of the pyrotechnic ignition circuit of the present application, such as figure 2 Shown, comprising a control circuit and an ignition pyrotechnic state detection circuit, a control circuit connected to the output of an ignition pyrotechnic input state detection circuit, an ignition control circuit uses two power supplies, a power supply V1 is an input ignition command, the other a power supply V2 is applied to the EED, pyrotechnics state detection circuit uses a power source for applying a voltage on the state signal detecting EED.

[0033] Firing control circuit includes a delay circuit connected to each other and controls the switch circuit, the delay circuit configured to delay an ignition command signal dividing, reducing electromagnetic interference ignition command signal; a control circuit according to the switching delay dividing an ignition command signal to the control switch on or off both ends of the pyrotechnic power supply V...

Example Embodiment

[0036] Specific Example 2

[0037] One kind of the pyrotechnic ignition circuit of the present application, such as image 3 Shown, it comprises an RC delay circuit by the first resistor R1, a first capacitor C1, a second capacitor C2, the third capacitor C3, wherein a first capacitor C1, a second capacitor C2, a third capacitor C3 connected in parallel, composition parallel combination of the capacitor, the first resistor R1 connected in series with the parallel combination of the capacitor, form an RC delay circuit.

[0038] Using three parallel capacitors, each capacitor to respond to magnetic interference signals of different frequency filtering to reduce the effect of interference signal to control the switching circuit.

[0039] Both ends of the capacitor parallel combination, connected in parallel with two input control switch circuit. Controls the switch circuit comprises a solid state relay K1 magnetically isolated, two magnetic isolation input side of the solid-state rela...

Example Embodiment

[0053] DETAILED Third Embodiment

[0054] One kind of the pyrotechnic ignition circuit of the present application, such as Figure 5 , The difference with the embodiment 2 in that: the second end of the explosive device is also connected in series with a second switch control circuit. In this circuit, the two ends of the pyrotechnic simultaneous connection control switch circuit, power is applied to ensure the reliability of the EED.

[0055] The second control circuit includes a switching circuit magnetically isolated, two magnetic isolation circuit input side of the input terminal and the output terminal of the delay circuit in parallel, a first output terminal connected to the second end side of EED, the output side a second output terminal is connected to an ignition power V2-.

[0056] Specifically, the magnetic circuit comprises a magnetic separator isolating the solid state relay K4, two input magnetic isolation of the solid state relay K4 are connected to the input side of ...

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PUM

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Abstract

The invention discloses an initiating explosive device ignition circuit and module. The initiating explosive device ignition circuit comprises an ignition control circuit and an initiating explosive device state detection circuit which are connected with each other, wherein the ignition control circuit adopts an ignition power supply and a control power supply and is used for controlling the ignition power supply applied to an initiating explosive device to be switched on or off according to a control instruction; the initiating explosive device state detection circuit adopts a detection power supply, two input ends of the initiating explosive device state detection circuit are connected to two ends of the initiating explosive device in parallel, and the initiating explosive device state detection circuit is used for detecting whether the ignition power supply applied to the initiating explosive device is switched on or not; and the voltage value of the ignition power supply is equal to that of the control power supply. According to the initiating explosive device ignition circuit and module, a time delay circuit is arranged in the ignition control circuit, so that electromagnetic interference is reduced, and meanwhile, the voltage of an ignition instruction is reduced, so that the voltage requirement of an electromagnetic isolation circuit is reduced, and the application range of an electromagnetic isolator is expanded.

Description

technical field [0001] The invention relates to the technical field of pyrotechnic ignition, in particular to a pyrotechnic ignition circuit and module. Background technique [0002] At present, with the development of aviation and aerospace technology, a large number of equipment and facilities on the aircraft are put into operation by means of step-by-step deployment and release. The device is folded inside the aircraft or fixed on the external hardpoint through the pressing point before deployment or release. After entering the track, the control system needs to unlock the pressing point, and the equipment will realize the predetermined function after unfolding. The unlocking of the pressing point is generally realized by bridge wire electric detonation pyrotechnics. [0003] The ignition control of pyrotechnic products is generally realized by relays. [0004] However, the pyrotechnic ignition circuit controlled by conventional relays, such as figure 1 As shown, the ...

Claims

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Application Information

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IPC IPC(8): F42D1/05
CPCF42D1/05
Inventor 赖耀康董海建于承航郭琳李燕董亚光赵小松
Owner BEIJING KEYTONE ELECTRONICS RELAY
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