Igniter circuit

Abstract

The invention belongs to the field of igniters, and particularly relates to an igniter circuit which comprises a heating wire module. The colorful lamp module has a colorful lamp effect; an MCU module; the first microphone module is matched with the MCU module to control the fantasy color lamp module; the second microphone module is matched with the MCU module to control the heating wire module; the first microphone module, the second microphone module, the fantasy color lamp module and the heating wire module are all connected with the MCU module. According to the invention, the MCU module processes and analyzes the electric signal data of the second microphone module and then controls the working state of the heating wire module; meanwhile, the MCU module processes and analyzes the electric signal data of the first microphone module in real time to drive the fantasy color lamp module to work, and can control the fantasy color lamp module to display different lamp effects along with the change of the external sound volume, so that the fantasy color lamp generates a rhythm effect, the interaction mode is enriched, and the product is fashionable and interesting.

Description

Technical Field

[0001] The invention belongs to the field of igniters, and in particular relates to an igniter circuit. Background Art

[0002] The heating wire igniter is an application of electronic ignition technology. Its core component is the heating wire, which is a device that can convert electrical energy into thermal energy. Through the action of electric current, the heating wire will generate heat. When the heat reaches a certain threshold, it can ignite the combustible. This technology has the advantages of simple structure, easy operation, and fast ignition speed. Therefore, it has been widely used in many fields such as automobiles, homes, and industries.

[0003] However, the common heating wire igniter products 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, the existing igniters cannot meet user needs well. Summary of the invention

[0004] In order to solve the above-mentioned purpose, the technical purpose of the present invention 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 object, the technical solution of the present invention is as follows.

[0006] An igniter circuit, characterized in that it comprises:

[0007] Heating wire module;

[0008] A colorful light module with colorful lighting effects;

[0009] MCU module;

[0010] The first microphone module that 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, external sound signals are collected through the second microphone module and converted into electrical signals. After processing and analyzing the electrical signal data of the second microphone module, the MCU module controls the working state of the heating wire module; at the same time, external sound signals are collected in real time through the first microphone module and converted into electrical signals. The MCU module processes and analyzes the electrical signal data of the first microphone module in real time to drive the fantasy light module to work, and can control the fantasy light module to display different lighting effects as the volume of external sound changes, so that the fantasy light produces a rhythmic effect, enriches the interaction mode, and makes 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, and 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, external sound signals are collected by the second microphone module and converted 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, external sound signals are collected in real time by the first microphone module and converted 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 external sound changes, so that the magic light produces a rhythmic effect, enriches the interaction mode, and makes 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 present invention.

[0026] Figure 2 It is the circuit schematic diagram of the MCU module.

[0027] Figure 3 This is the circuit schematic diagram of the colorful light module.

[0028] Figure 4 This is the circuit schematic 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 of the first microphone module.

[0032] Figure 8 This is the circuit schematic of the second microphone module.

[0033] Fig. 9 This is the circuit schematic diagram of the TYPEC interface module.

[0034] Fig.10 This is the circuit schematic diagram of the signal light module.

[0035] Fig.11 This is the pin arrangement diagram of the main control chip. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 colorful light module with colorful lighting effects;

[0040] MCU module;

[0041] The first microphone module that 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 the heating wire module, F+1 and F-1 are welding points connected to the heating wire.

[0044] In this embodiment, 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. 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 the signal amplifying circuit 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, and its model is 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, and 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, and its model number is 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 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 source of the resistor R13 and 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 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 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.

[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: AK1008 is used as the core control module of the igniter, which is responsible for the main judgment and control of the logic. AK1008 receives the signals transmitted from the first microphone module, the second microphone module and the TYPEC interface module. After data processing and analysis, it sends instructions to drive the magic light module to work, control the start-up of the heating wire module, and control the switch of the flashlight.

[0056] 2. After receiving the signal from the AK1008 main control module, the magic light module can drive and display different lighting effects and switch control.

[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 effects, 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 and sucking, 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 start. 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 burning 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. The signal light module is used to display the 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 the Embodiment

[0064] 1. MCU module:

[0065] Including the main control chip, which uses AK1008 chip and 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] AK1008 is connected to the magic light module by two signal lines, one of which is used to connect the signal line of the magic light module, and the other is used to connect the power control line of the magic light module. Each magic light bead of the magic light module can be controlled individually; through the cooperation of the two signal lines, it is ensured 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, so as to achieve personalized lighting effect display:

[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. The power switch of the magic light module is controlled by controlling the conduction and shutdown of the MOS. The magic light module is controlled to be in the off state when it is not needed to achieve low power consumption.

[0070] AK1008 and the signal light module are each connected by a 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 the voice interaction function, 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 the external sound signal, the sound signal is converted into analog and then amplified. The MCU module collects the signal through MIC_ADC. MIC_VCC is used to control the operation of the transistor. When MIC_VCC receives a high level, the transistor with amplification function is turned on, and the signal amplified by the transistor will be easier to be collected by MIC_ADC. When the MCU module receives different voltages, it 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. Through SDA and SCL (pins 20 and 19), users can upgrade the MCU firmware. In addition, the AK1008 is also connected to the TYPEC interface through the VCC_5V pin to receive the charging voltage transmitted from 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. After analog conversion, the sound signal is filtered by a capacitor and amplified by a transistor amplifier. The signal is then transmitted to the MCU module through the MIC_ADC pin. After analysis and processing, the MCU module sends relevant instructions to the fantasy light module, and the fantasy light will display the corresponding lighting effect. The external sound volume is different, and the voltage collected by the MCU module is also different, so the lighting effect displayed by the fantasy light is also different. A PMOS tube is also added to the circuit, and its function is 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] It is used to connect the charging power supply and the igniter. The igniter circuit is charged through the TYPEC interface module. One end of the TYPEC interface module is connected to the 5V pin of the MCU module, which can provide a 5V charging voltage to the MCU module. One end is connected to the ICSPDAT and ICSPVPP of the MCU module through CC1 and CC2. It can not only determine the insertion status and role of the device by detecting the voltage change of the CC pin, but also easily perform firmware update and upgrade operations. The pull-down resistors of the CC1 and CC2 lines of the TYPEC interface module are used to implement the insertion detection and power supply negotiation functions of the device. When the device acts as the receiving end, it will configure the pull-down resistor Rd on the CC1 and CC2 pins. In this way, when the Type-C plug is inserted into the socket, the CC pin will be connected to the ground wire through the pull-down resistor Rd, and the voltage of the CC pin is 0V.

[0080] 4. Magic light module:

[0081] After receiving the signal from the MCU, the MCU module issues specific instructions to drive the magic light of the magic light module to display specific lighting effects. The magic light module is connected to AK1008 by two signal lines, one of which is used to connect the signal line of the magic light module, and the other is used to connect the power control line of the magic light module. When the power line of the magic light module is connected, when the MCU module sends a high level through the magic light on and off switch signal line, the magic light is lit. The magic light power line is connected to a MOS circuit, and the power switch control of the magic light is realized by controlling the conduction and shutdown of the MOS, so as to control the magic light to be in the off state when it is not needed to work, so as to achieve low power consumption. Each magic light bead can be controlled separately; through the cooperation of the two signal lines, it is ensured that the MCU module can correctly send commands and data to the magic light, and control the magic light to display different lighting effects, so as to achieve personalized lighting effect display. When the brightness of the magic light beads is different, the combined lighting effect is also different, and each LED chip can work separately.

[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, the digital signal is then transmitted 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] It is connected to the MCU module through the PWM signal line, receives instructions from the MCU module, and controls the flashlight on and off. A hardware pull-down resistor is also set to achieve a default off state of 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 substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An igniter circuit, characterized in that: include: Heating wire module; A colorful light module with colorful lighting effects; MCU module; The first microphone module that 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 which 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 the signal amplifying circuit 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, and 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.

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