Electronic circuit of electronic cigarette integrated with microphone chip and child lock

Abstract

The utility model provides an electronic circuit integrating a microphone chip and a child lock for an electronic cigarette. The electronic circuit comprises a main control unit, the microphone chip, a child lock circuit, an acquisition circuit and an output circuit, the microphone chip is connected with the acquisition circuit and the output circuit, one end of the main control unit is connected with the microphone chip, and the other end of the main control unit is connected with the child lock circuit; wherein the child lock circuit comprises a switch module and a key module, the output circuit comprises a heating wire and an output node of the microphone chip, the switch module is connected between the heating wire and the output node of the microphone chip, one end of the key module is connected with the main control unit and the switch module, and the other end of the key module is grounded. According to the electronic cigarette, the electronic circuit integrating the microphone chip and the child lock is arranged, so that multifunctionality and convenience of the electronic cigarette are achieved, control over the electronic cigarette is achieved, and the problem that juveniles suck the electronic cigarette by mistake is effectively solved.

Description

Technical Field

[0001] The present application relates to a field, and in particular, to an electronic circuit of an electronic cigarette integrating a microphone chip and a child lock. Background Art

[0002] As a product that replaces the traditional smoking method, the working principle of an electronic cigarette is mainly based on electronic technology to simulate the smoke generation and inhalation process in the traditional smoking process. The electronic cigarette integrating a microphone chip combines multiple technologies in its working principle, including air flow monitoring, control circuits, and atomization technology, etc., to achieve the purpose of inhaling nicotine and flavors without combustion.

[0003] Although the integrated microphone chip brings multifunctional convenience to the electronic cigarette, in terms of safety, especially in the consideration of preventing minors from accidentally inhaling and using it, it is still insufficient. Currently, when customers need to add a child lock function to an electronic cigarette product, the conventional method is to use a non-integrated chip to implement this function. This approach usually involves replacing the chip and redesigning the circuit, thus increasing the complexity and cost of production.

[0004] Therefore, it is necessary to provide an electronic cigarette integrating a microphone chip and a child lock function to prevent minors from accidentally inhaling. Summary of the Utility Model

[0005] In view of this, it is necessary to provide an electronic circuit of an electronic cigarette integrating a microphone chip and a child lock to solve the above problems.

[0006] An embodiment of the present application provides an electronic circuit of an electronic cigarette integrating a microphone chip and a child lock, including:

[0007] A main control unit, a microphone chip, a child lock circuit, a collection circuit, and an output circuit;

[0008] The microphone chip is connected to the collection circuit and the output circuit, and one end of the main control unit is connected to the microphone chip, and the other end is connected to the child lock circuit, and is used to drive the output circuit to start when the collection circuit works;

[0009] Wherein, the child lock circuit includes a switch module and a key module, the output circuit includes a heating wire and an output node of the microphone chip, the switch module is connected between the heating wire and the output node of the microphone chip, and one end of the key module is connected to the main control unit and the switch module, and the other end is connected to the ground terminal, so as to control the opening and closing state of the switch module through a preset key signal of the key module.

[0010] In at least one embodiment of the present application, the collection circuit includes an air flow sensor, and the air flow sensor is connected to an interface pin of the microphone chip for transmitting signals to the microphone chip.

[0011] In at least one embodiment of the present application, the switch module is a PMOS field-effect transistor.

[0012] In at least one embodiment of the present application, the source electrode of the PMOS field-effect transistor is connected to the output node, the drain electrode is connected to the heating wire, and the gate electrode is connected to the main control unit and the key module.

[0013] In at least one embodiment of the present application, the child lock circuit further includes a resistor R5, one end of the resistor R5 is connected to the key module, and the other end is connected to the ground terminal.

[0014] In at least one embodiment of the present application, the main control unit has a first pin and a second pin, the first pin is connected to the key module, and the second pin is connected to the output node.

[0015] In at least one embodiment of the present application, the electronic circuit further includes a first input circuit and a second input circuit, and both the first input circuit and the second input circuit are respectively connected to the microphone chip.

[0016] In at least one embodiment of the present application, the first input circuit has a charging module, a resistor R4 and a capacitor C2. One end of the resistor R4 is connected to the charging module, the other end is connected to the capacitor C2, and the charging module is connected to the U5V terminal of the microphone chip.

[0017] In at least one embodiment of the present application, the second input circuit has a power supply module and a capacitor C1. One end of the power supply module is grounded through the capacitor C1, and the other end is connected to the VDD terminal of the microphone chip.

[0018] An embodiment of the present application provides an electronic cigarette, which includes a housing, a circuit board disposed in the housing, and the electronic circuit integrating the microphone chip and the child lock.

[0019] The above-provided electronic circuit of the electronic cigarette integrating the microphone chip and the child lock realizes the versatility and convenience of the electronic cigarette by setting the electronic circuit integrating the microphone chip and the child lock; the microphone chip is connected to the acquisition circuit and the output circuit, one end of the main control unit is connected to the microphone chip, and the other end is connected to the child lock circuit, so that when the acquisition circuit works, the main control unit drives the output circuit to start; the child lock circuit is provided with a connection switch module and a key module, and the opening and closing state of the switch module is controlled through the preset key signal of the key module, thereby realizing the control of the electronic cigarette and effectively preventing the problem of accidental inhalation by minors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a circuit schematic diagram of an electronic circuit of an electronic cigarette integrating a microphone chip and a child lock in an embodiment of the present application.

[0021] Figure 2 This is the circuit schematic diagram of the child lock circuit, acquisition circuit and output circuit in the embodiment of the present application.

[0022] Figure 3 This is the circuit schematic diagram of the first input circuit and the second input circuit in the embodiment of the present application.

[0023] Figure 4 This is the flow block diagram of the microphone chip and child lock operation in the embodiment of the present application.

[0024] Description of main component symbols

[0025] 100. An electronic circuit integrating a microphone chip and a child lock in an electronic cigarette; 10, main control unit; U2, microphone chip; 20, child lock circuit; 30, acquisition circuit; 40, output circuit; 41, heating wire; Q1, switch module; S1, button module; U1, airflow sensor; IO1, first pin; IO2, second pin; 50, first input circuit; 51, charging module; 60, second input circuit; 61, power supply module. Detailed implementation manners

[0026] Next, the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0027] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0028] The embodiment of the present application provides an electronic circuit integrating a microphone chip and a child lock in an electronic cigarette, including:

[0029] A main control unit, a microphone chip, a child lock circuit, an acquisition circuit and an output circuit;

[0030] The microphone chip is connected to the acquisition circuit and the output circuit. One end of the main control unit is connected to the microphone chip, and the other end is connected to the child lock circuit, and is used to drive the output circuit to start when the acquisition circuit is working;

[0031] Among them, the child lock circuit includes a switch module and a key module. The output circuit includes a heating wire and the output node of the microphone chip. The switch module is connected between the heating wire and the output node of the microphone chip. One end of the key module is connected to the main control unit and the switch module, and the other end is connected to the ground terminal, so as to control the opening and closing state of the switch module through the preset key signal of the key module.

[0032] The provided electronic circuit integrating a microphone chip and a child lock in an electronic cigarette realizes the versatility and convenience of the electronic cigarette by setting the electronic circuit integrating the microphone chip and the child lock. The microphone chip is connected to the acquisition circuit and the output circuit. One end of the main control unit is connected to the microphone chip, and the other end is connected to the child lock circuit, so that when the acquisition circuit works, the main control unit drives the output circuit to start. The child lock circuit is provided with a switch module and a key module, and the opening and closing state of the switch module is controlled through the preset key signal of the key module, thereby realizing the control of the electronic cigarette and effectively preventing the problem of accidental inhalation by minors.

[0033] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] According to Figures 1-4 , an electronic circuit 100 integrating a microphone chip U2 and a child lock in an electronic cigarette is provided in an embodiment of the present application, including a main control unit 10, a microphone chip U2, a child lock circuit 20, an acquisition circuit 30 and an output circuit 40. The microphone chip U2 is connected to the acquisition circuit 30 and the output circuit 40. One end of the main control unit 10 is connected to the microphone chip U2, and the other end is connected to the child lock circuit 20, and is used to drive the output circuit 40 to start when the acquisition circuit 30 works.

[0035] Among them, the child lock circuit 20 includes a switch module Q1 and a key module S1. The output circuit 40 includes a heating wire 41 and the output node of the microphone chip U2. The switch module Q1 is connected between the heating wire 41 and the output node of the microphone chip U2. One end of the key module S1 is connected to the main control unit 10 and the switch module Q1, and the other end is connected to the ground terminal, so as to control the opening and closing state of the switch module Q1 through the preset key signal of the key module S1.

[0036] Specifically, the acquisition circuit 30 is connected to the main control unit 10 through the microphone chip U2, and is used to detect the user's puffing action and transmit the signal to the main control unit 10; the output circuit 40 includes a heating wire 41, which is the core component for the electronic cigarette to generate smoke; the child lock circuit 20 includes a switch module Q1 and a button module S1, and unlocks the electronic cigarette through a specific button logic to prevent minors from misusing it. In the circuit of the present application, during inhalation, the acquisition circuit 30 generates a changing signal and sends the signal to the microphone chip U2. After the microphone chip U2 processes the signal, the main control unit 10 determines whether to enable the child lock circuit 20, so as to control the output of the output circuit 40. When the child lock circuit 20 is in the unlocked or unlocked state, the main control unit 10 will drive the output circuit 40 to start, heat the heating wire 41, and generate smoke; when the child lock circuit 20 is in the locked state, even if the acquisition circuit 30 detects an inhalation action, the electronic cigarette will not work, thus preventing minors from using it.

[0037] In an embodiment of the present application, the on-off state of the switch module Q1 is controlled by the preset button signal of the button module S1. It should be noted that the preset button signal is only one of the implementation manners exemplified for convenience of description, which is performed by continuously pressing the button, and the number of continuous presses is 3 times.

[0038] In a specific embodiment, the acquisition circuit 30 includes an airflow sensor U1, and the airflow sensor U1 is connected to the interface pin of the microphone chip U2 for transmitting signals to the microphone chip U2.

[0039] Specifically, the interface pin is the physical connection point for the microphone chip U2 to communicate with components such as the airflow sensor U1. Through the interface pin, the microphone chip U2 receives signals from the airflow sensor U1 and adjusts the working state of the electronic cigarette according to these signals.

[0040] In a specific embodiment, the switch module Q1 is a PMOS field effect transistor. The source electrode of the PMOS field effect transistor is connected to the output node, the drain electrode is connected to the heating wire 41, and the gate electrode is connected to the main control unit 10 and the button module S1.

[0041] Specifically, the PMOS field-effect transistor is responsible for controlling the on / off of the output circuit 40 of the electronic cigarette to enable the heating wire 41 to work or not. In the low-level state, the PMOS transistor is turned on. The gate is connected to the main control unit 10 and the button module S1. When the circuit of the electronic cigarette is in the non-working state, the main control unit 10 transmits a high-level signal. After pressing the button module S1 three times, the signal transmitted by the main control unit 10 is pulled low to the low-level state by the button. The PMOS transistor connected to the button is turned on, and the current flows from the source to the drain, causing the heating wire 41 to work. Pressing the button three times again, the main control unit 10 recognizes the preset button signal and transmits a high-level signal, causing the PMOS transistor to turn off, and then the heating wire 41 does not work, thus protecting against the problem of accidental inhalation.

[0042] In a specific embodiment, the child lock circuit 20 further includes a resistor R5. One end of the resistor R5 is connected to the button module S1, and the other end is connected to the ground terminal.

[0043] Specifically, the resistor R5 serves as a voltage-dividing element, connecting the button module S1 and the ground terminal, for forming a current loop of the circuit, and at the same time playing a role in current limiting to protect the button module S1 from damage.

[0044] In a specific embodiment, the main control unit 10 has a first pin IO1 and a second pin IO2. The first pin IO1 is connected to the button module S1, and the second pin IO2 is connected to the output node.

[0045] Specifically, the first pin IO1 is connected to the button module S1. The main control unit 10 transmits signals to the button module S1 and the switch module Q1 through the first pin IO1. The second pin IO2 is connected to the output node. The second pin IO2 is connected to the connection point formed by the two output ends of the microphone chip U2, and the connection point is an output point. The microphone chip U2 transmits the acquisition signal transmitted by the airflow sensor U1 to the main control unit 10 through the connected second pin IO2. The first pin IO1 transmits the low-level signal that pulls down the button to the switch module Q1, causing the switch module Q1 to turn on.

[0046] In a specific embodiment, the electronic circuit further includes a first input circuit 50 and a second input circuit 60. Both the first input circuit 50 and the second input circuit 60 are respectively connected to the microphone chip U2. The first input circuit 50 has a charging module 51, a resistor R4, and a capacitor C2. One end of the resistor R4 is connected to the charging module 51, and the other end is connected to the capacitor C2. The charging module 51 is connected to the U5V terminal of the microphone chip U2. The second input circuit 60 has a power supply module 61 and a capacitor C1. One end of the power supply module 61 is grounded through the capacitor C1, and the other end is connected to the VDD terminal of the microphone chip U2.

[0047] Specifically, the first input circuit 50 and the second input circuit 60 provide the necessary power supply and charging function for the microphone chip U2. The charging module 51 is used to charge the battery inside the electronic cigarette. The resistor R4 and the capacitor C2 form part of the charging circuit and are responsible for current regulation and filtering. The resistor R4 can limit the charging current to prevent the battery from being damaged by excessive current; the capacitor C2 is used to smooth the charging voltage, reduce voltage fluctuations, and protect the battery from damage. The power supply module 61 provides a direct working power supply for the electronic cigarette, and the capacitor C1 is used to stabilize the power output. The capacitor C1 can effectively suppress the noise of the power line, ensure that the electronic cigarette circuit receives a stable voltage supply, and thus operate stably.

[0048] When the user charges the electronic cigarette, an external power supply charges the battery inside the electronic cigarette through the charging module 51, and the resistor R4 and the capacitor C2 ensure the stability of the charging current and voltage. When the electronic cigarette is working, the power supply module 61 provides a stable working voltage for the VDD terminal of the microphone chip U2 through the capacitor C1 to ensure the normal operation of the electronic cigarette.

[0049] An electronic cigarette includes a housing, a circuit board disposed inside the housing, and the electronic circuit integrating the microphone chip U2 and the child lock.

[0050] Therefore, for the electronic circuit 100 integrating the microphone chip U2 and the child lock of the electronic cigarette provided above, by setting the electronic circuit integrating the microphone chip U2 and the child lock, the versatility and convenience of the electronic cigarette are realized; the microphone chip U2 is connected to the acquisition circuit 30 and the output circuit 40, one end of the main control unit 10 is connected to the microphone chip U2, and the other end is connected to the child lock circuit 20, so that when the acquisition circuit 30 works, the main control unit 10 drives the output circuit 40 to start; the connection switch module Q1 and the button module S1 are arranged in the child lock circuit 20, and the on-off state of the switch module Q1 is controlled through the preset button signal of the button module S1, thereby realizing the control of the electronic cigarette and effectively preventing the problem of accidental inhalation by minors.

[0051] The above are only the implementation manners of the present application. It should be noted here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these all belong to the protection scope of the present application.

Claims

1. An electronic circuit integrating an electret microphone chip and a child lock for an electronic cigarette, characterized in that, Comprising: A main control unit, a microphone chip, a child lock circuit, a collection circuit and an output circuit; The microphone chip is connected to the collection circuit and the output circuit. One end of the main control unit is connected to the microphone chip, and the other end is connected to the child lock circuit, and is used to drive the output circuit to start when the collection circuit works; Wherein, the child lock circuit includes a switch module and a button module. The output circuit includes a heating wire and an output node of the microphone chip. The switch module is connected between the heating wire and the output node of the microphone chip. One end of the button module is connected to the main control unit and the switch module, and the other end is connected to the ground terminal, so as to control the opening and closing state of the switch module through a preset button signal of the button module.

2. The electronic circuit of an integrated microphone chip and a child lock for an electronic cigarette according to claim 1, wherein, The collection circuit includes an airflow sensor. The airflow sensor is connected to an interface pin of the microphone chip and is used to transmit signals to the microphone chip.

3. An electronic circuit of an integrated microphone chip and a child lock for an electronic cigarette according to claim 1, characterized in that The switch module is a PMOS field effect transistor.

4. An electronic circuit of an electronic cigarette integrating a microphone chip and a child lock according to claim 3, characterized in that, The source electrode of the PMOS field effect transistor is connected to the output node, the drain electrode is connected to the heating wire, and the gate electrode is connected to the main control unit and the button module.

5. The electronic circuit of an integrated microphone chip and a child lock for an electronic cigarette according to claim 1, characterized in that, The child lock circuit further includes a resistor R5. One end of the resistor R5 is connected to the button module, and the other end is connected to the ground terminal.

6. An electronic circuit integrating an e-cigarette microphone chip and a child lock according to claim 1, characterized in that, The main control unit has a first pin and a second pin. The first pin is connected to the button module, and the second pin is connected to the output node.

7. An electronic circuit of an electronic cigarette integrating a microphone chip and a child lock according to claim 1, characterized in that, The electronic circuit further includes a first input circuit and a second input circuit. The first input circuit and the second input circuit are both respectively connected to the microphone chip.

8. An electronic circuit of an integrated microphone chip and a child lock for an electronic cigarette according to claim 7, characterized in that, The first input circuit has a charging module, a resistor R4 and a capacitor C2. One end of the resistor R4 is connected to the charging module, and the other end is connected to the capacitor C2. The charging module is connected to the U5V terminal of the microphone chip.

9. An electronic circuit for an electronic cigarette integrating a microphone chip and a child lock, characterized in that, The second input circuit has a power supply module and a capacitor C1. One end of the power supply module is grounded through the capacitor C1, and the other end is connected to the VDD terminal of the microphone chip.

10. An electronic cigarette, characterized in that, Including a housing and a circuit board provided in the housing and an electronic circuit integrating a microphone chip and a child lock as described in any one of claims 1-9.

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