Electronic remote control igniter

Abstract

The utility model discloses an electronic remote control igniter belongs to the technical field of igniter, and solves the problems of insufficient safety protection, non-intuitive state feedback and low adaptability of the ignition box of the existing equipment. It comprises a control box and an ignition box, which are connected by an electric lead. The main circuit board in the control box is provided with a power supply, a single-chip microcomputer main control, a radio frequency receiver, a six-axis sensor and a six-indicator light state indication module. The ignition box is an open box body, the top end of which is connected to a clamp plate through a torsional spring shaft, the inside of which is provided with an electric heating wire, and the clamp plate is provided with an observation window corresponding to the electric heating wire. The device can detect the posture of the control box to prevent accidental touch, feedback the state of the device with multiple lights, fix the ignition carrier with the clamp plate and confirm the contact condition through the observation window. The utility model improves the safety and the ignition success rate through the design of triple safety protection, intuitive state feedback and high-adaptability ignition box, and is suitable for firework setting off, outdoor emergency and small-scale industrial ignition scenes.

Description

Technical Field

[0001] This utility model relates to the field of igniter technology, and in particular to an electronic remote control igniter. Background Technology

[0002] In scenarios such as fireworks displays, outdoor emergency ignition, and small-scale industrial ignition, remote-controlled igniters have gradually replaced traditional manual ignition methods and become one of the core devices in these scenarios because they can avoid close contact between personnel and high-temperature ignition sources and reduce operational risks. However, existing electronic remote-controlled igniters still have many shortcomings in terms of structural design, safety protection, and functional practicality, making it difficult to meet users' actual needs for reliability, safety, and ease of operation. Specifically: Insufficient safety protection: The lack of control box attitude detection function may lead to accidental ignition triggering in unstable states such as tilting or inversion, which may cause safety accidents; the radio frequency receiver module has weak anti-interference ability and is easily affected by surrounding wireless signals, which may cause interruption or misreception of ignition command reception. The status feedback is not intuitive: Only 1-2 indicator lights are configured, which can only indicate the power on / off status and cannot provide feedback on key information such as lithium battery power, charging progress, wire connection status, and ignition ready status. Users are prone to misjudging the device status. The ignition box has low compatibility: it lacks an ignition carrier clamping mechanism, which makes it easy for fireworks fuses to shift, resulting in poor contact of the heating wire; there is no observation window, making it difficult for users to confirm the contact status between the fuse and the heating wire, resulting in a low ignition success rate.

[0003] Therefore, we propose a new electronic remote-controlled igniter. Utility Model Content

[0004] The main purpose of this invention is to provide an electronic remote-controlled igniter, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an electronic remote-controlled igniter, comprising: Control box and ignition box; The control box and the ignition box are electrically connected by an electrical wire. The control box has a mounting groove and a wire inlet hole, and the mounting groove and the wire inlet hole are connected. Two mounting tabs, one end of which is rotatably connected to the mounting groove via a rotating shaft, and an elastic pressure block is provided on the inner side of the mounting tabs to press the electrical wires that pass through the wire inlet hole into the control box. A main switch and a tactile button are mounted on the control box. The main circuit board is installed inside the control box; The main circuit board is equipped with a power module, a main control module, an RF receiver module, a sensor module, and a status indicator module. The power module is electrically connected to the main control module, the radio frequency receiving module, the sensor module, and the status indication module, respectively. The main control module includes a microcontroller, which is connected to the radio frequency receiving module, sensor module, status indicator module, assembly lever, main switch, and tactile button signals, and is used to process the acquired signals and output control commands.

[0006] As a further description of the above technical solution, the power module includes a charging port, a charging chip, a lithium battery, and a voltage regulator. The charging port is located on one side of the control box and is electrically connected to the charging chip. The voltage regulator and the charging chip are both soldered onto the motherboard circuit and are electrically connected to the lithium battery. The lithium battery is electrically connected to the motherboard circuit.

[0007] As a further description of the above technical solution, the main switch is connected in series between the voltage regulator and the lithium battery to control the power supply. The tactile button and the mounting lever are both connected to the microcontroller signal.

[0008] As a further description of the above technical solution, the microcontroller is soldered onto the main circuit board, and the microcontroller is electrically connected to the voltage regulator.

[0009] As a further description of the above technical solution, the radio frequency receiving module includes a radio frequency receiving core and a crystal oscillator, and the radio frequency receiving core, the crystal oscillator, the microcontroller, and the voltage regulator are all electrically connected.

[0010] As a further description of the above technical solution, the sensor module includes a six-axis sensor, which integrates an accelerometer and a gyroscope, and is electrically connected to a microcontroller and a voltage regulator.

[0011] As a further description of the above technical solution, the status indication module includes six indicator lights, all of which are soldered onto the main circuit board, all of which are connected to the microcontroller signal, and all of which are electrically connected to the voltage regulator.

[0012] As a further description of the above technical solution, the ignition box includes a box body, which is a box-shaped structure with an open top. Connecting blocks are symmetrically fixed to the top of the box body. A clamping plate is rotatably connected between the two connecting blocks via a torsion spring shaft. An electric heating wire is provided on one side of the bottom of the box body. The electric heating wire is electrically connected to an electric conductor. An observation window is provided on the clamping plate in the area corresponding to the electric heating wire.

[0013] As a further description of the above technical solution, the assembly paddle has a built-in micro switch, which is electrically connected to the microcontroller. After the assembly paddle is pressed, the micro switch will output an assembly completion signal to the microcontroller.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Significantly enhanced overall protection capabilities mitigate operational risks. An integrated six-axis sensor monitors the control box's attitude in real time. When the control box tilts at an angle greater than 30° or is in an unstable state such as inverted, the sensor outputs an interrupt signal to the microcontroller, directly prohibiting the ignition command output and preventing accidental triggering. Simultaneously, the RF receiver module, paired with a crystal oscillator, significantly enhances the anti-interference capability of the 433MHz band signal, effectively preventing command interruption or misreception caused by surrounding wireless signals, ensuring stable ignition command transmission. Furthermore, the assembly lever incorporates a microswitch; the device is only allowed to enter the ignition-ready state when the electrical wire is clamped and the microswitch outputs an "assembly in place" signal. Combined with the main switch connected in series in the power circuit, this forms a triple safety protection system of attitude detection, signal anti-interference, and wire fixation detection, reducing operational risks.

[0015] 2. The status feedback is intuitive and clear, avoiding misjudgment of equipment status. It breaks through the limitation of existing equipment with only 1-2 indicator lights. It is designed with six clearly defined indicator lights, which correspond to power on / off and charging status, low lithium battery, code pairing and clearing status, wire connection status, radio frequency signal interruption status, safe ignition ready status, and posture abnormality indication. Users can understand the power supply, power, wiring, signal and readiness status of the equipment through the color and on / off pattern of the indicator lights. It completely solves the problem of misjudgment caused by the ambiguous status of traditional equipment and improves the reliability of operation.

[0016] 3. The ignition box adopts a torsion spring shaft and clamping plate structure. The torsion spring can provide clamping force to firmly fix the ignition carrier such as the firework fuse and prevent poor contact of the heating wire due to carrier displacement. At the same time, the clamping plate has an observation window corresponding to the heating wire area, so that users can intuitively check the contact status between the fuse and the heating wire and eliminate potential contact problems in advance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an electronic remote-controlled igniter according to the present invention; Figure 2 This is a schematic diagram of the ignition box structure of an electronic remote-controlled igniter according to the present invention; Figure 3 This is a circuit diagram of each module of an electronic remote control igniter according to the present invention.

[0018] In the diagram: 1. Control box; 2. Ignition box; 3. Electrical wire; 4. Mounting slot; 5. Assembly lever; 6. Main switch; 7. Touch button; 8. Charging port; 21. Box body; 22. Connecting block; 23. Clamping plate; 24. Heating wire; 25. Observation window. Detailed Implementation

[0019] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-3 This utility model provides a technical solution: an electronic remote-controlled igniter, including a control box 1, an ignition box 2, and an electrical wire 3 connecting the two. The control box 1 has a built-in main circuit board and functional modules. The ignition box 2 is used to fix the ignition carrier and realize ignition. The functional modules include a power supply module, a main control module, an RF receiving module, a sensor module, and a status indication module. Figure 3 Specifically, it includes a main control module circuit, a power supply module circuit, an RF receiver module circuit, a sensor module circuit, a status indicator module, and an ignition execution and wire detection circuit.

[0023] The control box 1 has a mounting slot 4 and a wire access hole, and a charging port 8, a main switch 6 and a touch button 7 are installed on one side. The main circuit board is fixedly connected inside the control box 1. The power module, main control module, radio frequency receiving module, sensor module and status indicator module are all soldered onto the main circuit board.

[0024] To further explain, the power module is responsible for providing stable power to all functional modules, including charging port 8, charging chip, lithium battery and voltage regulator. Charging port 8 adopts TYPE-C6P type charging port, charging chip model is CL4057A type charging chip, lithium battery is 450mAh rechargeable lithium battery, and voltage regulator adopts ME6211C33M5G-N type LDO voltage regulator. The charging port 8 is embedded in one side of the control box 1. The pins pass through the control box 1 and are soldered to the edge pads of the main circuit board. The charging chip and the voltage regulator are both soldered on the main circuit board near the area close to the lithium battery. The lithium battery is fixed at the bottom of the inner cavity of the control box 1. The VBUS terminal of charging port 8 is connected to the VIN pin (pin 4) of the charging chip, and the GND terminal is connected to the GND network of the main circuit board. The BAT pin (pin 3) of the charging chip is connected to the BAT+ terminal of the lithium battery through a wire. The PROG pin (pin 6) is grounded after being connected in parallel with R6 and R7. The BAT+ terminal of the lithium battery is also connected to the VIN pin (pin 1) of the voltage regulator. The VOUT pin (pin 5) of the voltage regulator outputs a stable 3.0V voltage, and the VOUT pin is connected in parallel with C1 and C10 to power other modules. The main switch 6 is an SK-12E12-G5 type toggle switch, which is connected in series between the BAT+ terminal of the lithium battery and the VIN pin of the voltage regulator to control the power supply.

[0025] To further explain, the main control module uses a microcontroller of model PY32F002BF15U6TR. The microcontroller is soldered onto the main circuit board. The VCC pin (pin 6) of the microcontroller is connected to the VOUT pin of the voltage regulator, and the VSS pin (pin 4) and EP heat sink (pin 21) are grounded. The microcontroller is connected to the assembly switch 5, main switch 6, assembly switch 5, and tactile button 7 through GPIO pins. It is connected to the sensor module through the I2C bus (SCL / SCLK pin 22, SDA / SDI / SDIO pin 23), to the RF receiver module through the DATA pin (PA0 pin 13), and to the status indicator module through GPIO pins (PB1, PB0, PA4, etc.) to realize signal acquisition, command processing, and control output.

[0026] To further explain, the RF receiver module is responsible for receiving external remote control commands, including the RF receiver chip and the crystal oscillator. The RF receiver chip is a 433MHz band RF receiver chip of model VG590, and the crystal oscillator is a 13.52127MHz crystal oscillator. The RF receiver chip and crystal oscillator are soldered to the edge of the main circuit board in an area away from the power module to avoid electromagnetic interference. The RF_VCC pin of the RF receiver chip is connected to the VOUT pin (3.0V) of the voltage regulator, the GND pin is grounded, the clock pin is connected to two pins of the 13.52127MHz crystal oscillator to provide a stable clock signal, and the data output pin is connected to the PA0 pin of the microcontroller.

[0027] To further explain, the sensor module is used to detect the attitude of control box 1 to avoid dangerous ignition conditions. It adopts an MPU-6500 six-axis sensor, which integrates an accelerometer and a gyroscope and is soldered onto the main circuit board. The VDDIO pin (pin 8) of the six-axis sensor is connected to the VOUT pin (3.0V) of the voltage regulator, and the GND pin (pin 17) is grounded. The SCL / SCLK pin (pin 22) and SDA / SDI / SDIO pin (pin 23) are connected to the corresponding I2C pins on the microcontroller. The INT1 / INT pin (pin 12) is connected to the PA1 pin of the microcontroller. When the sensor detects an unstable state such as the control box 1 tilting >30° or being inverted, it outputs an interrupt signal. After receiving the interrupt signal, the microcontroller disables the ignition command output.

[0028] To further explain, the status indicator module is used to intuitively provide feedback on the working status of the device. It includes six through-hole LEDs, namely LED1 to LED6. LED1 to LED6 are soldered to the top edge of the main circuit board, which corresponds to the transparent sidewall of the control box 1. The light can pass through directly. The anode of each LED is connected to the VOUT pin of the voltage regulator through a current-limiting resistor, and the cathode is connected to the corresponding GPIO pin of the microcontroller. Further explanation: LED1 connected to PB1 pin indicates power supply: on when powered on, off when powered off; charging: on when charging, off when fully charged; LED2 connected to PB0 pin indicates low battery: on; pairing code: on → flashing → off; clear code: on → off → flashing twice; red LED3 connected to PA4 pin indicates wire fixation: constantly on when pressed, flashing when not pressed; yellow LED4 connected to PA5 pin indicates signal interruption: on; green LED5 connected to PA6 pin indicates safe ignition ready: on; yellow LED6 connected to PA7 pin indicates auxiliary status: flashing if the attitude is abnormal.

[0029] To further explain, the assembly paddle 5 is used to fix the wire 3 and prevent it from loosening. The two assembly paddles 5 are symmetrically installed in the mounting groove 4 on the side of the control box 1. The mounting groove 4 is connected to the wire inlet hole. The wire inlet hole is located between the two assembly paddles 5. The assembly paddle 5 is rotatably connected to the housing of the control box 1 through the built-in rotating shaft. The outer side of the assembly paddle 5 is provided with anti-slip texture, and the inner side is provided with a serrated rubber elastic pressure block. To further explain, after the wire 3 is inserted through the wire inlet hole, the mounting paddle 5 is pushed down, and the elastic block presses the wire insulation layer. At the same time, the elastic buckle at the pivot of the mounting paddle 5 is engaged in the positioning groove on the inner wall of the mounting slot 4 to achieve mechanical locking and prevent loosening. The paddle has a built-in micro switch, and the pin is connected to the PA2-SWC pin (15) and PA3 pin (16) of the microcontroller. When pressed, the micro switch is closed, the microcontroller detects a high level, and controls the LED3 to be constantly lit. When not pressed or loose, the micro switch is open, the LED3 flashes, and ignition is prohibited.

[0030] To further explain, the ignition box 2 is used to fix the ignition carrier and achieve ignition through the heating wire 24. It includes a box body 21, with two connecting blocks 22 symmetrically fixed to the top of the box body 21. The two connecting blocks 22 are rotatably connected to the clamping plate 23 through a torsion spring shaft. The torsion spring provides a continuous clamping force to press the ignition carrier, such as the firework fuse, into the box body 21, preventing the fuse from shifting and causing ignition failure. The heating wire 24 is fixed to one side of the bottom of the box body 21 by a high-temperature resistant bracket. The heating wire 24 is made of nickel-chromium alloy and has a rated power of 8W output. The two ends of the heating wire 24 are soldered to the wiring terminals on the side of the box body 21 through wires. The wiring terminals are soldered to one end of the wire 3, and the other end of the wire 3 passes through the control box 1 and is soldered to the corresponding signal pad and GND pad on the main circuit board to form an ignition circuit loop. An observation window 25 is opened on the clamping plate 23 in the area corresponding to the heating wire 24. The user can directly observe the contact status between the ignition carrier and the heating wire 24 through the observation window 25 to ensure that the ignition preparation is in place.

[0031] To further explain, the wire 3 consists of two multi-strand copper core wires, which are the ignition signal wire and the ground wire, respectively, and are wrapped with a high-temperature resistant insulation layer. After stripping the insulation layer at one end, the ignition signal wire is connected to the heating wire, and the ground wire is connected to the other end of the heating wire. The other end is stripped of its insulation layer and passed through the wire access hole of the control box 1, making contact with the microcontroller ignition control pin on the main circuit board. It is fixed by the mounting lever 5, forming a complete ignition circuit from the control box 1 to the ignition box 2.

[0032] This document explains that this electronic remote-controlled ignition system is also equipped with a remote control that connects to the radio frequency (RF) receiver module within the control box 1. The remote control, acting as the transmitter of remote control commands, has a built-in 433MHz signal transmission circuit. When the user presses the ignition button or other function buttons on the remote control, the integrated circuit within the remote control quickly activates, converting the user's operation into a 433MHz RF signal carrying the corresponding command information. A physical antenna is mounted on the top of the control box 1, which receives the RF signal from the remote control and transmits it to the RF receiver module on the main circuit board within the control box 1. The 433MHz RF receiver module... The 3M band RF receiver chip filters, amplifies, and processes the received signal to extract the instruction information. The processed signal is then transmitted to the microcontroller's PA0 pin via the DATA pin. After receiving the instruction signal, the microcontroller parses and judges the instruction according to its internal pre-programmed code, and then outputs corresponding control signals to other connected modules to achieve functions such as remote ignition and status feedback. Through this signal connection method, the remote control and the igniter control box achieve stable and reliable wireless communication, ensuring that users can conveniently operate the igniter from a safe distance, meeting the remote control needs of scenarios such as fireworks displays.

[0033] It should be noted that this utility model is an electronic remote-controlled igniter. In use, first turn on the main switch 6, the voltage regulator outputs 3.0V, LED1 lights up, and the device powers on. Then, the sensor module starts, detecting the attitude of the control box 1. If it is stable and tilted ≤30° and not inverted, LED5 lights up; if unstable, LED6 flashes, prohibiting ignition. The microcontroller then detects the state of the microswitch on the mounting lever 5. If pressed, LED3 remains lit, indicating ignition ready; if not pressed, LED3 flashes, prompting the user to press the wires. Next, press the touch button for 73 seconds, LED2 lights up. Releasing the button enters the pairing mode, using an external 433M remote control to send the ignition command. The RF receiver module... After receiving the signal, it is transmitted to the microcontroller, which stores the remote control code. LED2 flashes 3 times, indicating successful code pairing. If no new command is received within 5 seconds, LED2 turns off, exiting the code pairing mode. Then, the firework fuse is placed into the ignition box 2, and the clamp 23 is pressed down to insert the fuse into the ignition box 2. The fuse and heating wire 24 are confirmed to be in good contact through the observation window 25. The clamp 23 is then released, and the fuse is tightened and limited by the torsion spring shaft. The user then moves to a safe position and sends an ignition command via the remote control. After receiving the command, the microcontroller checks the lighting status of LED5 and LED3. If both are normal, it outputs an ignition signal, and the heating wire 24 is energized and heats up, igniting the fuse. After ignition, the main switch 6 is turned off, LED1 turns off, and the device is powered off.

[0034] When LED2 lights up to indicate low battery, connect the TYPE-C data cable to charging port 8. LED1 will light up, and the lithium battery will be charged through the charging chip. Once fully charged, the STDBY pin of the charging chip will output a high level. The microcontroller will detect the signal and control LED1 to turn off, thus completing the charging process.

[0035] When LED3 flashes, check if the assembly lever 5 is pressed tightly. Move the assembly lever 5 back to the pressed position. If it still flashes, check if the wire 3 is fully inserted and in contact with the main circuit board. When LED6 flashes, adjust the position of the control box 1 to be horizontal and stable. If it still flashes, check the sensor module wiring and resolder or replace the sensor. When LED4 is lit, check if the remote control battery is sufficient and if the RF receiver module antenna is loose. Reinstall the antenna or replace the remote control battery.

[0036] Compared with existing electronic remote control igniters, this utility model improves safety and ignition success rate through triple safety protection, intuitive status feedback and highly adaptable ignition box design, and is suitable for fireworks display, outdoor emergency and small industrial ignition scenarios.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electronic remote-controlled igniter, characterized in that, include: Control box (1) and ignition box (2); The control box (1) and the ignition box (2) are electrically connected by an electric wire (3). The control box (1) has an installation groove (4) and a wire access hole, and the installation groove (4) and the wire access hole are connected. Two assembly paddles (5), one end of which is rotatably connected to the mounting groove (4) via a rotating shaft, and an elastic pressure block is provided on the inner side of the assembly paddles (5) for pressing the electrical wires (3) that pass through the wire inlet hole into the control box (1). A main switch (6) and a tactile button (7) are mounted on a control box (1); The main circuit board is installed inside the control box (1); The main circuit board is equipped with a power module, a main control module, an RF receiver module, a sensor module, and a status indicator module. The power module is electrically connected to the main control module, the radio frequency receiving module, the sensor module, and the status indication module, respectively. The main control module includes a microcontroller, which is connected to the radio frequency receiving module, sensor module, status indicator module, assembly lever (5), main switch (6), and touch button (7) respectively, and is used to process the acquired signals and output control commands.

2. The electronic remote-controlled igniter according to claim 1, characterized in that, The power module includes a charging port (8), a charging chip, a lithium battery and a voltage regulator. The charging port (8) is located on one side of the control box (1) and is electrically connected to the charging chip. The voltage regulator and the charging chip are both soldered on the motherboard circuit and are electrically connected to the lithium battery. The lithium battery is electrically connected to the motherboard circuit.

3. The electronic remote-controlled igniter according to claim 2, characterized in that, The main switch (6) is connected in series between the voltage regulator and the lithium battery to control the power supply. The touch button (7) and the assembly lever (5) are both connected to the microcontroller signal.

4. The electronic remote-controlled igniter according to claim 2, characterized in that, The microcontroller is soldered onto the main circuit board and is electrically connected to the voltage regulator.

5. An electronic remote-controlled igniter according to claim 2, characterized in that, The radio frequency receiving module includes a radio frequency receiving core and a crystal oscillator. The radio frequency receiving core, the crystal oscillator, the microcontroller, and the voltage regulator are all electrically connected.

6. An electronic remote-controlled igniter according to claim 2, characterized in that, The sensor module includes a six-axis sensor, which integrates an accelerometer and a gyroscope, and is electrically connected to a microcontroller and a voltage regulator.

7. An electronic remote-controlled igniter according to claim 2, characterized in that, The status indication module includes six indicator lights, all of which are soldered onto the main circuit board, connected to the microcontroller signal, and electrically connected to the voltage regulator.

8. An electronic remote-controlled igniter according to claim 2, characterized in that, The ignition box (2) includes a box body (21), which is a box-shaped structure with an open top. A connecting block (22) is symmetrically fixed to the top of the box body (21). A clamping plate (23) is rotatably connected between the two connecting blocks (22) through a torsion spring shaft. An electric heating wire (24) is provided on one side of the bottom inside the box body (21). The electric heating wire (24) is electrically connected to the electric wire (3). An observation window (25) is provided on the clamping plate (23) in the area corresponding to the electric heating wire (24).

9. An electronic remote-controlled igniter according to claim 1, characterized in that, The assembly paddle has a built-in micro switch, which is electrically connected to the microcontroller. After the assembly paddle (5) is pressed, the micro switch will output an assembly signal to the microcontroller.

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