CN215177323U

CN215177323U - Smoke screen cartridge electronic fuse circuit board based on single chip microcomputer

Info

Publication number: CN215177323U
Application number: CN202121859422.6U
Authority: CN
Inventors: 罗根新; 赵安平; 郭志强; 邱爽
Original assignee: Suzhou Fengsui Electronics Co ltd
Current assignee: Suzhou Fengsui Electronics Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-14
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer, which belongs to the field of circuit boards and comprises a single chip microcomputer U1 and a power supply conversion chip U2; the power supply conversion chip U2 converts a signal FO sent by a detection emission control box of the smoke cartridge into 3.3V voltage to supply power for the single chip U1; a pin P23 of the singlechip U1 is connected with the negative electrode of a diode D1 through a resistor R10; the anode of the diode D1 is connected with the base electrode of the triode V1, the collector electrode of the triode V1 is connected with the signal FO through the resistor R7, and the emitter electrode is grounded; a pin P26 of the singlechip U1 is connected with the negative electrode of a diode D2 through a resistor R11; the anode of the diode D2 is connected to the base of the transistor V2, the emitter of the transistor V2 is grounded, the collector is connected to the signal FO, the first terminal of the resistor R8 and the first terminal of the capacitor C10 through the resistor R9, and the second terminal of the resistor R8 and the second terminal of the capacitor C10 are grounded.

Description

Smoke screen cartridge electronic fuse circuit board based on single chip microcomputer

Technical Field

The utility model relates to a circuit board technical field, in particular to smoke screen bullet electron fuze circuit board based on singlechip.

Background

The most basic use of the smoke screen bomb is to cause visual obstruction to enemies, and the smoke screen bomb can also be used for defense and delay time; thereby providing psychological fear and visual obstruction to the enemy. There is therefore a need for an electronic detonator that detonates a smoke cartridge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smoke screen bullet electron messenger circuit board based on singlechip to solve the problem in the background art.

In order to solve the technical problem, the utility model provides a smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer, which comprises a single chip microcomputer U1 and a power supply conversion chip U2; the power supply conversion chip U2 converts a signal FO sent by a detection emission control box of the smoke cartridge into 3.3V voltage to supply power for the single chip U1;

a pin P23 of the singlechip U1 is connected with the negative electrode of a diode D1 through a resistor R10; the anode of the diode D1 is connected with the base electrode of the triode V1, the collector electrode of the triode V1 is connected with the signal FO through the resistor R7, and the emitter electrode is grounded;

a pin P26 of the singlechip U1 is connected with the negative electrode of a diode D2 through a resistor R11; the anode of the diode D2 is connected to the base of the transistor V2, the emitter of the transistor V2 is grounded, the collector is connected to the signal FO, the first terminal of the resistor R8 and the first terminal of the capacitor C10 through the resistor R9, and the second terminal of the resistor R8 and the second terminal of the capacitor C10 are grounded.

Optionally, a capacitor C2 and a capacitor C3 are connected in parallel between the input terminal Vin and the ground terminal GND of the power conversion chip U2; and a capacitor C1 is connected between the output end Vout of the power conversion chip U2 and the ground end GND in parallel.

Optionally, the capacitor C2 and the capacitor C3 are connected to a signal FO; the capacitor C1 is connected to the voltage VCC.

Optionally, an ADC module is integrated in the single chip microcomputer U1, and a pin P24 of the ADC module is connected between the voltage dividing resistors R1 and R5.

Optionally, the smoke screen cartridge electronic fuse circuit board based on the single chip microcomputer further comprises a programming interface P1, programming programs are programmed for the single chip microcomputer U1, a first pin of the programming interface P1 is connected with the voltage VCC, a second pin is grounded, and a third pin, a fourth pin and a fifth pin are connected with the voltage VCC through a resistor R4, a resistor R3 and a resistor R2 respectively.

Optionally, a capacitor C11 is connected in parallel between the base of the triode V1 and the emitter thereof; and a capacitor C12 is connected in parallel between the base electrode of the triode V2 and the emitter electrode of the triode V2.

Optionally, the pins P14 and P15 of the single chip microcomputer U1 are grounded through a capacitor C4 and a capacitor C5, respectively; a crystal Y1 is connected in parallel between the capacitor C4 and the capacitor C5.

The utility model provides a smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer, which comprises a single chip microcomputer U1 and a power supply conversion chip U2; the power supply conversion chip U2 converts a signal FO sent by a detection emission control box of the smoke cartridge into 3.3V voltage to supply power for the single chip U1; a pin P23 of the singlechip U1 is connected with the negative electrode of a diode D1 through a resistor R10; the anode of the diode D1 is connected with the base electrode of the triode V1, the collector electrode of the triode V1 is connected with the signal FO through the resistor R7, and the emitter electrode is grounded; a pin P26 of the singlechip U1 is connected with the negative electrode of a diode D2 through a resistor R11; the anode of the diode D2 is connected to the base of the transistor V2, the emitter of the transistor V2 is grounded, the collector is connected to the signal FO, the first terminal of the resistor R8 and the first terminal of the capacitor C10 through the resistor R9, and the second terminal of the resistor R8 and the second terminal of the capacitor C10 are grounded. The utility model discloses an whether electron fuze circuit board detects the ignition tool return circuit earlier and is normal, ignites to the ignition tool again and makes the smoke screen bullet pop out the thorax body, then ignites to ignition tool F2, and smoke screen bullet explosion release smog forms the smoke screen.

Drawings

Fig. 1 is a schematic structural diagram of a smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer provided by the utility model;

fig. 2 is a schematic structural diagram of the power conversion chip U2 provided by the present invention.

Detailed Description

The following describes the electronic fuse circuit board of the smoke screen cartridge based on the single chip microcomputer in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer, which comprises a single chip microcomputer U1 and a power supply conversion chip U2; the power conversion chip U2 converts a signal FO sent by a detection emission control box of the smoke cartridge into 3.3V voltage to supply power for the single chip U1. As shown in fig. 1, a pin P23 of the single chip microcomputer U1 is connected with a negative electrode of a diode D1 through a resistor R10; the anode of the diode D1 is connected with the base electrode of the triode V1, the collector electrode of the triode V1 is connected with the signal FO through the resistor R7, the emitter electrode is grounded, and a capacitor C11 is connected in parallel between the base electrode of the triode V1 and the emitter electrode of the triode V1; a pin P26 of the singlechip U1 is connected with the negative electrode of a diode D2 through a resistor R11; the anode of the diode D2 is connected to the base of the transistor V2, the emitter of the transistor V2 is grounded, the collector is connected to the signal FO, the first end of the resistor R8 and the first end of the capacitor C10 through the resistor R9, the second end of the resistor R8 and the second end of the capacitor C10 are grounded, and the capacitor C12 is connected in parallel between the base of the transistor V2 and the emitter thereof.

An ADC module is integrated in the single chip microcomputer U1, and a pin P24 of the ADC module is connected between voltage dividing resistors R1 and R5. The pins P14 and P15 of the single chip microcomputer U1 are grounded through a capacitor C4 and a capacitor C5 respectively; a crystal Y1 is connected in parallel between the capacitor C4 and the capacitor C5.

The smoke screen cartridge electronic fuse circuit board based on the single chip microcomputer further comprises a programming interface P1, programming programs are programmed for the single chip microcomputer U1, a first pin of the programming interface P1 is connected with the voltage VCC, a second pin is grounded, and a third pin, a fourth pin and a fifth pin are connected with the voltage VCC through a resistor R4, a resistor R3 and a resistor R2 respectively.

As shown in fig. 2, a capacitor C2 and a capacitor C3 are connected in parallel between the input terminal Vin and the ground terminal GND of the power conversion chip U2; and a capacitor C1 is connected between the output end Vout of the power conversion chip U2 and the ground end GND in parallel. The capacitor C2 and the capacitor C3 are connected with a signal FO; the capacitor C1 is connected to the voltage VCC.

The utility model provides a pair of smoke screen bullet electron fuze circuit board based on singlechip, singlechip U1 is as the core control part of whole fuze circuit board. The programming interface P1 and its peripheral circuit are programmed by the single-chip U1. The signal FO sent by the detection emission control box of the smoke cartridge is divided into two stages of 10V low current and 24V. The power conversion chip U2 converts the signal FO into 3.3V to provide working voltage for the single chip U1. Resistor R7 is used to simulate igniter F1 and igniter F1 functions to eject the projectile from the chamber. The resistor R9 is used to simulate the igniter F2, and the igniter F2 is used to cause the bullet to explode and release smoke to form a smoke curtain. An ADC module is integrated in the single chip microcomputer U1, P24 is a pin of the ADC module, and resistors R1 and R5 are used for dividing the voltage of a signal FO. When the signal FO is set to 10V, it indicates that the system is currently in the loop state of the detection igniter F1, the pin P23 of the single-chip microcomputer U1 outputs high level, the transistor V1 is turned on, the signal FO is applied to the igniter F1, and the signal FO is pulled low because the signal FO can only output small current. The emission control box is detected to judge whether a loop of an igniter F1 is normal or not by processing a pulled-down signal FO, if the signal FO is detected to be within the range of 10 mV-300 mV, the loop of the igniter F1 is normal, if the signal FO is lower than 15mV, the igniter F1 is in a short circuit state, and if the signal FO is higher than 300mV, the igniter F1 is in an open circuit state. Once the circuit of the igniter F1 is judged to be normal, the signal FO is switched to the 24V gear by the detection and transmission control box, and the igniter F1 directly ignites, and the projectile body is discharged. And then the singlechip U1 enters a low power consumption mode, after a certain time, the pin P26 of the singlechip U1 outputs high level, the triode V2 is conducted, the energy storage capacitor C10 provides instantaneous large current for the igniter F2 to ignite the igniter F2, and the bomb explodes to release smoke to form a smoke screen.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A smoke screen cartridge electronic fuse circuit board based on a single chip microcomputer is characterized by comprising a single chip microcomputer U1 and a power supply conversion chip U2; the power supply conversion chip U2 converts a signal FO sent by a detection emission control box of the smoke cartridge into 3.3V voltage to supply power for the single chip U1;

2. The electronic fuze circuit board of the smoke screen cartridge based on the single chip microcomputer as claimed in claim 1, wherein a capacitor C2 and a capacitor C3 are connected in parallel between an input terminal Vin and a ground terminal GND of the power conversion chip U2; and a capacitor C1 is connected between the output end Vout of the power conversion chip U2 and the ground end GND in parallel.

3. The single-chip microcomputer-based smoke cartridge electronic fuse circuit board as claimed in claim 2, wherein the capacitor C2 and the capacitor C3 are connected to a signal FO; the capacitor C1 is connected to the voltage VCC.

4. The electronic fuze board of the smoke screen cartridge based on the single chip microcomputer of claim 1, wherein an ADC module is integrated in the single chip microcomputer U1, and a pin P24 of the ADC module is connected between voltage dividing resistors R1 and R5.

5. The single-chip microcomputer-based smoke cartridge electronic fuse circuit board as claimed in claim 1, further comprising a programming interface P1 for programming a program for the single-chip microcomputer U1, wherein a first pin of the programming interface P1 is connected to the voltage VCC, a second pin is grounded, and a third pin, a fourth pin and a fifth pin are connected to the voltage VCC through a resistor R4, a resistor R3 and a resistor R2, respectively.

6. The electronic fuze circuit board of the smoke screen cartridge based on the single chip microcomputer as claimed in claim 1, wherein a capacitor C11 is connected in parallel between the base electrode of the triode V1 and the emitter electrode of the triode V1; and a capacitor C12 is connected in parallel between the base electrode of the triode V2 and the emitter electrode of the triode V2.

7. The single-chip microcomputer based smoke screen cartridge electronic fuse circuit board as claimed in claim 1, wherein pins P14 and P15 of the single-chip microcomputer U1 are grounded through a capacitor C4 and a capacitor C5, respectively; a crystal Y1 is connected in parallel between the capacitor C4 and the capacitor C5.