Igniter circuit
By integrating the heating wire, colorful lights and microphone modules into the igniter circuit and using the MCU module to control the working status of the heating wire and colorful lights, the problem of the single function of the heating wire igniter is solved, and rich interaction methods and lighting effect changes are achieved to meet the diverse needs of users.
Patent Information
- Application Number
- CN202422772078.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The existing heating wire igniter has a single function and cannot meet the increasingly diverse needs of users.
An igniter circuit is designed, which integrates a heating wire module, a colorful light module with colored lighting effects, an MCU module, a first microphone module, and a second microphone module. The microphone module collects sound signals and converts them into electrical signals. The MCU module processes the data to control the working status of the heating wire and the colorful light, realizing rich interaction methods and lighting effect changes.
The functions of the igniter are enriched, the fashion and interest of the product are increased, and the diverse needs of users can be met.
Smart Images
Figure CN223331758U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of igniters, and in particular relates to an igniter circuit. Background Art
[0002] A heating wire igniter is an application of electronic ignition technology. Its core component is the heating wire, a device that converts electrical energy into thermal energy. The current flows through the heating wire, generating heat that, when reaching a certain threshold, ignites combustible materials. This technology offers advantages such as simple structure, easy operation, and fast ignition speed, leading to its widespread use in various fields, including automotive, household, and industrial applications.
[0003] However, the common heating wire igniter products currently on the market still have the following problems: Most of the heating wire igniters on the market can only meet the ignition needs, and the functions are monotonous. With the development of society, users' demands for igniters are becoming more and more diversified, and igniters need to be integrated with more functions. Therefore, existing igniters cannot meet user needs well. Utility Model Content
[0004] In order to solve the above-mentioned purpose, the technical purpose of the present utility model is to provide an igniter circuit, which has rich functions and can better meet the diverse needs of users.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows.
[0006] An igniter circuit, characterized by comprising:
[0007] Heating wire module;
[0008] A magic light module with colorful lighting effects;
[0009] MCU module;
[0010] The first microphone module cooperates with the MCU module to control the magic light module;
[0011] The second microphone module cooperates with the MCU module to control the heating wire module;
[0012] The first microphone module, the second microphone module, the magic light module, and the heating wire module are all connected to the MCU module.
[0013] In this circuit, the second microphone module collects external sound signals and converts them into electrical signals. The MCU module controls the working state of the heating wire module after processing and analyzing the electrical signal data of the second microphone module. At the same time, the first microphone module collects external sound signals in real time and converts them into electrical signals. The MCU module processes and analyzes the electrical signal data of the first microphone module in real time to drive the magic light module to work, and can control the magic light module to display different lighting effects as the volume of the external sound changes, thereby making the magic light produce a rhythmic effect, enriching the interaction mode, and making the product fashionable and interesting. That is, the circuit is rich in functions and can better meet the diverse needs of users.
[0014] Furthermore, the MCU module includes a main control chip that integrates a charging chip, short circuit protection and open circuit protection functions, OVP protection function, and leakage protection function.
[0015] Furthermore, the first microphone module includes a MIC and a signal amplifying circuit for amplifying the electrical signal converted by the MIC. The signal amplifying circuit is connected to the MIC, and the signal amplifying circuit is connected to a signal output terminal MIC_ADC for connecting to the MCU module.
[0016] Furthermore, the signal amplification circuit includes a capacitor C2 for filtering and a transistor Q1 for amplifying the electrical signal;
[0017] The base of the transistor Q1 is connected in series with the capacitor C2 and then connected to the MIC. The collector of the transistor Q2 is connected to the signal output terminal MIC_ADC.
[0018] Furthermore, the second microphone module is a microphone chip that integrates a microphone, a capacitor, and an inductor.
[0019] Furthermore, the circuit also includes a flashlight module for lighting, and the flashlight module is connected to the MCU module.
[0020] Furthermore, the flashlight module includes an NMOS tube Q3, a resistor R13, a resistor R14, a resistor R16, and a flashlight. The gate of the NMOS tube Q3 is connected to the MCU module through the resistor R13 and the PWM signal line. The source of the NMOS tube Q3 is grounded. The two ends of the resistor R14 are respectively connected to the resistor R13 and the source of the NMOS tube Q3. The drain of the NMOS tube Q3 is connected to the resistor R16. The resistor R16 and the MCU module are both connected to the flashlight.
[0021] Furthermore, the circuit also includes a battery module for supplying power to each module.
[0022] Furthermore, the circuit also includes a TYPEC interface module for charging the battery module and for burning software upgrades, and the TYPEC interface module is connected to the MCU module.
[0023] Furthermore, the circuit also includes a signal light module for displaying charging lighting effects.
[0024] The beneficial effect of the present invention is that, in the circuit, the second microphone module collects external sound signals and converts them into electrical signals, and the MCU module controls the working state of the heating wire module after processing and analyzing the electrical signal data of the second microphone module; at the same time, the first microphone module collects external sound signals in real time and converts them into electrical signals, and the MCU module processes and analyzes the electrical signal data of the first microphone module in real time to drive the magic light module to work, and can control the magic light module to display different lighting effects as the volume of the external sound changes, thereby making the magic light produce a rhythmic effect, enriching the interaction mode, and making the product fashionable and interesting; that is, the circuit is rich in functions and can better meet the diverse needs of users. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a module block diagram of the utility model.
[0026] Figure 2 This is the circuit schematic diagram of the MCU module.
[0027] Figure 3 This is the circuit schematic diagram of the magic light module.
[0028] Figure 4 This is the circuit schematic diagram of the flashlight module.
[0029] Figure 5 This is the circuit schematic of the battery module.
[0030] Figure 6 This is the circuit schematic of the heating wire module.
[0031] Figure 7 This is the circuit schematic diagram of the first microphone module.
[0032] Figure 8 This is the circuit schematic diagram of the second microphone module.
[0033] Figure 9 This is the circuit schematic diagram of the TYPEC interface module.
[0034] Figure 10 This is the circuit schematic diagram of the signal light module.
[0035] Figure 11 This is the pin arrangement diagram of the main control chip. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0037] See also Figure 1-11 , an igniter circuit, comprising:
[0038] Heating wire module;
[0039] A magic light module with colorful lighting effects;
[0040] MCU module;
[0041] The first microphone module cooperates with the MCU module to control the magic light module;
[0042] The second microphone module cooperates with the MCU module to control the heating wire module;
[0043] The first microphone module, the second microphone module, the magic light module, and the heating wire module are all connected to the MCU module. Figure 6 In this heating wire module, F+1 and F-1 are the welding points connecting the heating wire.
[0044] In this embodiment, the MCU module includes a main control chip with an internal integrated charging chip, short circuit protection, open circuit protection, OVP protection, and leakage protection. The model of the main control chip is AK1008.
[0045] In this embodiment, the first microphone module includes a MIC and a signal amplifying circuit for amplifying the electrical signal converted by the MIC. The signal amplifying circuit is connected to the MIC and is connected to a signal output terminal MIC_ADC for connecting to the MCU module. Figure 7 The MIC is the microphone 1 in the figure, model 6027_MIC.
[0046] In this embodiment, the signal amplification circuit includes a capacitor C2 for filtering and a transistor Q1 for amplifying the electrical signal;
[0047] The base of the transistor Q1 is connected in series with the capacitor C2 and then connected to the MIC. The collector of the transistor Q2 is connected to the signal output terminal MIC_ADC.
[0048] In this embodiment, the second microphone module is a microphone chip that integrates a microphone, a capacitor, and an inductor. Specifically, it is the microphone 2 in the figure, model 6027_MIC.
[0049] In this embodiment, the circuit further includes a flashlight module for lighting, and the flashlight module is connected to the MCU module.
[0050] In this embodiment, the flashlight module includes an NMOS transistor Q3, a resistor R13, a resistor R14, a resistor R16, and a flashlight. The gate of the NMOS transistor Q3 is connected to the MCU module through the resistor R13 and the PWM signal line. The source of the NMOS transistor Q3 is grounded. The two ends of the resistor R14 are connected to the resistor R13 and the source of the NMOS transistor Q3 respectively. The drain of the NMOS transistor Q3 is connected to the resistor R16. The resistor R16 and the MCU module are all connected to the flashlight. See Figure 4 , where T+1 and T-1 are the soldering points connected to the flashlight.
[0051] In this embodiment, the circuit further includes a battery module for supplying power to each module. Figure 5 , where B+1 and B-1 are welding points connected to the battery.
[0052] In this embodiment, the circuit further includes a TYPEC interface module for charging the battery module and for burning software upgrades, and the TYPEC interface module is connected to the MCU module.
[0053] In this embodiment, the circuit further includes a signal light module for displaying a charging light effect.
[0054] 1. In this embodiment, the working effects of each module are as follows:
[0055] 1. MCU Module: The AK1008 serves as the core control module of the igniter, responsible for the main logic judgment and control. The AK1008 receives signals from the first and second microphone modules and the TYPEC interface module. After data processing and analysis, it sends instructions to drive the magic light module, control the start-up of the heating wire module, and control the flashlight on and off.
[0056] 2. The magic light module receives signals from the AK1008 main control module and can drive different lighting effects and switch controls.
[0057] 3. The first microphone module is used to collect external sounds. The sound signal undergoes analog conversion, and then a transistor is used in its internal circuit to amplify the external sound signal. When the sound signal is transmitted to the MCU module, the MCU module processes and analyzes it, and then issues instructions to drive the LED of the fantasy light module to display the corresponding lighting effect, so that different lighting effects can be changed according to the external sound.
[0058] 4. The second microphone module: When the user triggers the second microphone module through blowing or suction, the second microphone module starts, and the MCU module controls the heating wire to start heating.
[0059] 6. The TYPEC interface module can be used as a charging interface for the igniter. That is, when the igniter circuit is connected to the power supply through the TYPEC interface module, charging can begin. It can also be used as an interface for upgrading the firmware of the igniter circuit. When the igniter circuit needs to be upgraded, the USB upgrade operation can be performed directly through the TYPEC interface module.
[0060] 7. The flashlight module can add a flashlight function to the igniter circuit. When the second microphone module is triggered and the igniter circuit starts working, the flashlight also starts working, increasing the practicality of the product.
[0061] 8. Signal light module, used to display charging light effect. When the charger is connected, the LED of the signal light module will display the corresponding light effect to remind the user.
[0062] 9. Battery module: an external battery can be connected to power the MCU and other modules that require power supply voltage. At the same time, the MCU module can also charge the battery.
[0063] 2. Working Principle of This Embodiment
[0064] 1. MCU module:
[0065] Including the main control chip, which uses AK1008 chip, QFN20 package. The VBAT part of the main control chip needs VCC_BAT power supply (pins 1, 2), and the power supply voltage is provided by an external battery. The VCC part of the main control chip can be used to charge the battery.
[0066] The 5V part of the main control chip is used to receive the charging voltage transmitted from the TYPEC interface.
[0067] The AK1008 is connected to the magic light module via two signal lines: one for the magic light module's signal line and one for the magic light module's power control line. Each magic light bead in the magic light module can be controlled individually. The two signal lines work together to ensure that the MCU module can correctly send commands and data to the magic light and control the magic light module to display different lighting effects, thereby achieving personalized lighting effects:
[0068] a. LED_EN: The on / off switch signal line of the magic light module. When the power line of the magic light module is connected and the MCU module sends a high level, the magic light module is turned on.
[0069] b. VCC_BAT: The power line of the magic light module is connected to a MOS circuit. By controlling the conduction and shutdown of the MOS, the power switch of the magic light module is controlled. In this way, the magic light module is kept in the off state when it is not needed, achieving low power consumption.
[0070] AK1008 and the signal light module are each connected by one signal line. When the LED1 pin of the MCU module outputs a high level, it is turned on and the LED lights up.
[0071] For voice interaction, the MCU module is connected to the MIC_ADC (pin 18) and MIC_VCC (pin 16) of the second microphone module. When the microphone of the second microphone module collects external sound signals, the sound signals undergo analog conversion and amplification, and the MCU module collects the signals through the MIC_ADC. MIC_VCC is used to control the operation of the transistors. When MIC_VCC receives a high level, the amplifying transistors are turned on, making the amplified signals easier to be collected by the MIC_ADC. The MCU module receives different voltage levels, which will drive the magic lights to display different lighting effects.
[0072] The AK1008 main control chip uses the I2C communication interface to connect to the TYPEC interface module. Users can upgrade the MCU firmware through SDA and SCL (pins 20 and 19). The AK1008 also connects to the TYPEC interface through the VCC_5V pin to receive the charging voltage transmitted by the TYPEC interface module.
[0073] AK1008 is connected to the flashlight module through the PWM pin to realize the on and off control of the flashlight module.
[0074] AK1008 is connected to the signal light module through the LED1 pin to realize the on and off control of the signal light module.
[0075] AK1008 is connected to the second microphone module through the MIC pin and receives the signal from the second microphone module. When the second microphone module is triggered, AK1008 sends instructions to the heating wire module to control the heating work of the heating wire, thereby realizing the ignition function.
[0076] 2. The first microphone module:
[0077] The first microphone module receives external sound signals through the microphone. The sound signal undergoes analog conversion, capacitor filtering, and transistor amplifier amplification. The signal is then transmitted to the MCU module via the MIC_ADC pin. The MCU module analyzes and processes the signal and sends relevant instructions to the magic light module, which displays the corresponding lighting effect. Different external sound levels and different voltages collected by the MCU module will also cause different lighting effects on the magic light. A PMOS transistor is also added to the circuit to achieve low power consumption. That is, when the microphone is not triggered, the MCU module will control MIC_VCC to output a high or low level to control the transistor amplifier circuit.
[0078] 3. TYPEC interface module:
[0079] This module connects the charging power source to the igniter. The igniter circuit is charged via the Type-C interface module. One end of the Type-C interface module is connected to the 5V pin of the MCU module, providing a 5V charging voltage to the MCU module. The other end is connected to the ICSPDAT and ICSPVPP pins of the MCU module via CC1 and CC2. This allows the device's insertion status and role to be determined by monitoring the voltage changes on the CC pins, facilitating firmware updates. The pull-down resistors on the CC1 and CC2 lines of the Type-C interface module enable device insertion detection and power negotiation. When the device is acting as the power receiver, it configures pull-down resistors Rd on the CC1 and CC2 pins. This allows the CC pins to be connected to ground via pull-down resistors Rd when the Type-C plug is inserted into a receptacle, resulting in a voltage of 0V on the CC pins.
[0080] 4. Magic light module:
[0081] The MCU receives signals from the MCU and issues specific commands to drive the RGB LEDs in the RGB LED module to display specific lighting effects. The RGB LED module connects to the AK1008 via two signal lines: one for the RGB LED module's signal line and one for its power control line. When the RGB LED power line is connected, the RGB LEDs illuminate when the MCU sends a high level through the RGB LED on / off signal line. The RGB LED power line is connected to a MOS circuit, which switches the MOS on and off to control the RGB LEDs' power. This allows the RGB LEDs to be turned off when not needed, thus reducing power consumption. Each RGB LED can be controlled individually. The two signal lines work together to ensure the MCU module correctly sends commands and data to the RGB LEDs and controls the lighting effects, creating personalized lighting effects. Different brightness levels create different lighting effects, and each LED chip can operate independently.
[0082] 5. Second microphone module:
[0083] It is an integrated microphone chip, which integrates the microphone, capacitor and inductor parts. When the second microphone module receives the external sound signal and finally converts it into a digital signal, it transmits the digital signal to the MCU module for data analysis and processing. After analysis, the MCU module drives the heating wire to start heating.
[0084] 6. Flashlight module:
[0085] The flashlight is connected to the MCU module via a PWM signal line, receiving instructions from the MCU module to control the flashlight on and off. A hardware pull-down resistor is also set to achieve a default off state for the flashlight to save power.
[0086] 7. Heating wire module:
[0087] Set the external soldering point of the heating wire, that is, add the heating wire part through the soldering point, receive the instruction from the MCU module, when the second microphone module is triggered, the MCU module controls the heating wire to start heating, thereby realizing the ignition function of the igniter.
[0088] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An igniter circuit, characterized in that: include: Heating wire module; A magic light module with colorful lighting effects; MCU module; The first microphone module cooperates with the MCU module to control the magic light module; The second microphone module cooperates with the MCU module to control the heating wire module; The first microphone module, the second microphone module, the magic light module, and the heating wire module are all connected to the MCU module.
2. An igniter circuit according to claim 1, characterized in that: The MCU module includes a main control chip that integrates a charging chip, short circuit protection and open circuit protection functions, OVP protection function, and leakage protection function.
3. An igniter circuit according to claim 1, characterized in that: The first microphone module includes a MIC and a signal amplifying circuit for amplifying the electrical signal converted by the MIC. The signal amplifying circuit is connected to the MIC and is connected to a signal output terminal MIC_ADC for connecting to the MCU module.
4. An igniter circuit according to claim 3, characterized in that: The signal amplification circuit includes a capacitor C2 for filtering and a transistor Q1 for amplifying the electrical signal; The base of the transistor Q1 is connected in series with the capacitor C2 and then connected to the MIC. The collector of the transistor Q2 is connected to the signal output terminal MIC_ADC.
5. An igniter circuit according to claim 1, characterized in that: The second microphone module is a microphone chip that integrates a microphone, a capacitor, and an inductor.
6. An igniter circuit according to claim 1, characterized in that: The circuit also includes a flashlight module for lighting, and the flashlight module is connected to the MCU module.
7. An igniter circuit according to claim 6, characterized in that: The flashlight module includes an NMOS tube Q3, a resistor R13, a resistor R14, a resistor R16, and a flashlight. The gate of the NMOS tube Q3 is connected to the MCU module through the resistor R13 and the PWM signal line. The source of the NMOS tube Q3 is grounded. The two ends of the resistor R14 are respectively connected to the resistor R13 and the source of the NMOS tube Q3. The drain of the NMOS tube Q3 is connected to the resistor R16. The resistor R16 and the MCU module are both connected to the flashlight.
8. An igniter circuit according to claim 1, characterized in that: The circuit also includes a battery module for supplying power to each module.
9. An igniter circuit according to claim 8, characterized in that: The circuit also includes a TYPEC interface module for charging the battery module and for burning software upgrades, and the TYPEC interface module is connected to the MCU module.
10. An igniter circuit according to claim 9, characterized in that: The circuit also includes a signal light module for displaying charging lighting effects.