CN204292204U - A kind of magnetic induction electronic cigarette - Google Patents

Abstract

The utility model discloses a magnetic induction electronic cigarette. A PCB board is arranged in the cavity inside the battery part, and the PCB board is provided with a magnetic induction switch, a magnetic induction detection circuit, an MCU processor, and a field effect tube circuit connected in sequence. As well as a boost circuit, the magnetic induction switch includes a magnet and an induction coil arranged opposite to the magnet, an output end of the induction coil is connected to an input end of the magnetic induction detection circuit. The utility model adopts a magnetic induction switch, and the user drives the magnetic induction switch to act during the inhalation and exhalation process to generate different magnetic fields, output high and low levels, and then control the booster circuit to output different voltages to change the power of the heating wire, thereby realizing smoke The amount of smoke can be adjusted to meet the needs of different users for the amount of smoke. This magnetic induction switch has a simple structure, is easy to use, and has a sensitive induction, a fast induction action, and can save power. It truly realizes a safe and environmentally friendly smoking process.

Description

A magnetic induction electronic cigarette

technical field

The utility model relates to the field of electronic cigarettes, in particular to a magnetic induction electronic cigarette.

Background technique

At present, electronic cigarettes have been gradually popularized by the public. Non-tobacco electronic cigarettes will not harm the health of the body, and can also emit smoke. Snorting. Because it has not been burned, it does not contain harmful substances such as carbon monoxide and tar, and will not produce second-hand smoke hazards.

However, the existing electronic cigarette basically adopts a mechanical switch to control the opening and closing of the electronic cigarette. The switch structure is poor, the switch is insensitive, and the switch function is single, which cannot control the amount of smoke in the electronic cigarette atomizer.

Utility model content

The purpose of the present utility model is to provide a magnetic induction electronic cigarette capable of controlling the amount of smoke in view of the above problems.

In order to achieve the above object, the utility model adopts the following technical solutions:

A magnetic induction electronic cigarette, comprising an atomizer part and a battery part connected to the atomizer part, a PCB board is arranged in a cavity inside the battery part, and magnetic induction switches connected in sequence are arranged on the PCB board , Magnetic induction detection circuit, MCU processor, FET circuit and boost circuit;

Wherein, the magnetic induction switch includes a magnet and an induction coil arranged opposite to the magnet, and an output end of the induction coil is connected to an input end of the magnetic induction detection circuit;

The magnetic induction detection circuit is provided with a triode with a model number of DH471, and capacitors are respectively connected between the collector of the triode and the output end and the input end of the magnetic induction detection circuit;

Described MCU processor adopts the single-chip microcomputer that model is STM8L151G4;

The field effect transistor circuit is provided with field effect transistors Q1 and Q3 of model A03415A and a triode Q4 of model 7002, and the field effect transistors Q1 and Q3 are connected in parallel with the transistor Q4 in series;

The step-up circuit adopts a step-up chip of model MP3423, and the input terminal of the step-up circuit is connected to the positive pole of the battery.

Further, the single-chip microcomputer is electrically connected with a key switch SW1, a voltage stabilizing circuit and an LED light circuit.

Further, the voltage stabilizing circuit adopts a voltage stabilizing chip of model BL8503, the power supply input terminals on the voltage stabilizing chip are respectively connected with capacitors C2 and C3, and the output terminals are respectively connected with capacitors C4 and C5, and the capacitors C2, C3, C4 and C5 are grounded respectively.

Further, the light emitting diodes LED1 and LED2 on the LED lamp circuit are connected in parallel and connected in series with the resistor R10, and the light emitting diodes LED3 and LED4 are connected in parallel and connected in series with the resistor R8.

Further, it also includes a battery reverse connection protection circuit connected to the battery, the battery reverse connection protection circuit is a parallel circuit of field effect transistors Q5 and Q11, and the models of the field effect transistors Q5 and Q11 are both A03400.

Further, the MCU processor is also connected with a low voltage alarm device.

Implementing the utility model has the following beneficial effects:

1. Using a magnetic induction switch, the user drives the magnetic induction switch during the inhalation and exhalation process to generate different magnetic fields, output high and low levels, and then control the booster circuit to output different voltages to change the power of the heating wire, thereby realizing the amount of smoke The size can be adjusted to meet the needs of different users for the amount of smoke. The magnetic induction switch has a simple structure, easy to use, sensitive induction, fast induction action, and can save power. It truly realizes a safe and environmentally friendly smoking process;

2. During the smoking process, when the battery voltage of the electronic cigarette is lower than 3.2V, the light-emitting diode flashes white light for a low-voltage alarm, indicating that the voltage is too low, reminding the user to charge the electronic cigarette, avoiding excessive discharge, and protecting the battery Function; during the charging process, when the battery is fully charged, the light-emitting diode emits blue light to remind the user to disconnect the power supply in time;

3. In order to avoid damage caused by some users connecting the positive and negative poles of the battery against the battery during installation, the magnetic induction electronic cigarette of this utility model is equipped with a battery reverse connection protection circuit on the PCB, which can effectively prevent damage to the circuit.

Description of drawings

Fig. 1 is a system block diagram of the utility model;

Fig. 2 is the utility model MCU processor circuit diagram;

Fig. 3 is the utility model field effect tube circuit diagram;

Fig. 4 is the utility model step-up circuit diagram;

Fig. 5 is an enlarged view of the boost chip of the present invention;

Fig. 6 is the utility model magnetic induction detection circuit diagram;

Fig. 7 is the voltage stabilizing circuit diagram of the utility model;

Fig. 8 is the utility model LED lamp circuit diagram;

Fig. 9 is a circuit diagram of battery reverse connection protection of the present invention.

Marks in the drawings: 1. System block diagram; 2. MCU processor circuit; 3. Single-chip microcomputer; 4. Field effect tube circuit; 5. Boost circuit; 6. Magnetic induction detection circuit; 7. Regulator circuit; 8. LED light Circuit; 9. Battery reverse polarity protection circuit.

Detailed ways

The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings.

A magnetic induction electronic cigarette, comprising an atomizer part and a battery part connected to the atomizer part, a PCB board is provided in the cavity inside the battery part, and a magnetic induction switch and a magnetic induction detection circuit 6 connected in sequence are arranged on the PCB board. MCU processor, FET circuit 4 and booster circuit 5, as shown in Figure 2, MCU processor adopts the single-chip microcomputer 3 that model is STM8L151G4, and the 24th pin of this single-chip microcomputer 3 is electrically connected with key switch SW1, The seventh pin is electrically connected to the voltage stabilizing circuit 7 , and the fourth and fifth pins are electrically connected to the LED lamp circuit 8 .

As shown in the system block diagram 1 in Figure 1, one end of the battery reverse connection protection circuit 9 is connected to the battery, and the other end is connected to the boost circuit 5. After the button switch SW1 starts the electronic cigarette, the user changes the magnetic induction switch during the inhalation and blowing process. The magnet cuts the induction coil arranged opposite to the magnet, and the output end of the induction coil is connected to the input end of the magnetic induction detection circuit 6 shown in Figure 6, so the magnetic induction amount detected by the magnetic induction detection circuit 6 changes, and is output to the MCU processor High and low levels, then the MCU processor controls the booster circuit 5 to output the corresponding voltage through the field effect tube circuit 4, so as to achieve the purpose of changing the power of the heating wire in the atomizer and adjusting the amount of smoke. The field effect of the utility model The tube circuit 4 is equivalent to an output switch, which controls the voltage output of the booster circuit 5. As shown in Figure 8, the LED lamp circuit 8 of the present invention is a combination of two groups of light-emitting diodes, the first group being the parallel connection of the light-emitting diodes LED1 and LED2 Then connect it in series with resistor R10, and then connect it to the fourth pin of MCU 3. The second group is the light-reflecting diodes LED3 and LED4 in parallel, then connect it in series with resistor R8, and then connect it to the fifth pin of MCU 3 in series. Among them, when the battery voltage of the electronic cigarette is lower than 3.2V, the first group of light-emitting diodes flashes white light to give a low-voltage alarm, indicating that the voltage is too low, reminding the user to charge the electronic cigarette, avoiding excessive discharge, and protecting the battery. During the charging process, when the power is fully charged, the second group of LEDs will always light up in blue to remind the user to disconnect the power supply in time.

As shown in Fig. 3 to Fig. 7, the field effect transistor circuit 4 field effect transistors Q1 and Q3 are connected in parallel and connected in series with the triode Q4, connected in series with the twentieth pin of the single chip microcomputer 3, and the triode Q4 is connected with the resistor R6 and grounded. The models of field effect transistors Q1 and Q3 are both A03415A, and the model of triode Q4 is 7002. The boost circuit 5 adopts a boost chip of the type MP3423, its input terminal is connected to the positive pole of the battery, and the twelfth pin of the boost chip is connected with the tenth pin of the single-chip microcomputer 3 after connecting diodes D1 and D2. The magnetic induction detection circuit 6 is provided with a triode whose model is DH471, and capacitors are respectively connected between the collector of the triode and the output terminal and the input terminal. The voltage stabilizing circuit 7 adopts a voltage stabilizing chip of the model BL8503. The power supply input terminals on the voltage stabilizing chip are respectively connected with capacitors C2 and C3, the output terminals are respectively connected with capacitors C4 and C5, and the capacitors C2, C3, C4 and C5 are respectively grounded. The voltage stabilizing circuit 7 ensures the normal operation of the whole circuit, the circuit cannot work normally when the voltage is lower than the stable voltage, and protects the circuit when the voltage is higher than the stable voltage. As shown in Figure 9, the battery reverse connection protection circuit 9 is a parallel circuit of field effect transistors Q5 and Q11, and the models of field effect transistors Q5 and Q11 are both A03400. Damage to the circuit when the positive and negative terminals of the battery are reversed.

The utility model is not limited to the above-mentioned specific implementation, anyone can draw other various forms of products under the enlightenment of the present utility model, the above-mentioned specific implementation is only illustrative, rather than restrictive, those skilled in the art Under the enlightenment of the utility model, those skilled in the art can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection of the utility model.

Claims (6)

1. A magnetic induction electronic cigarette, comprising an atomizer part and a battery part connected to the atomizer part, a PCB board is arranged in the cavity inside the battery part, and it is characterized in that: the PCB board is provided with There are a magnetic induction switch, a magnetic induction detection circuit (6), an MCU processor, a field effect tube circuit (4) and a boost circuit (5) connected in sequence; Wherein, the magnetic induction switch includes a magnet and an induction coil arranged opposite to the magnet, and an output end of the induction coil is connected to an input end of the magnetic induction detection circuit (6); The magnetic induction detection circuit (6) is provided with a triode of model DH471, and capacitors are respectively connected between the collector of the triode and the output end and input end of the magnetic induction detection circuit (6); The MCU processor adopts a single-chip microcomputer (3) whose model is STM8L151G4; The field effect transistor circuit (4) is provided with field effect transistors Q1 and Q3 of model A03415A and a transistor Q4 of model 7002, and the field effect transistors Q1 and Q3 are connected in parallel with the transistor Q4 in series; The step-up circuit (5) adopts a step-up chip of model MP3423, and the input terminal of the step-up circuit (5) is connected to the positive pole of the battery. 2. An electronic cigarette according to claim 1, characterized in that: the single-chip microcomputer (3) is electrically connected to a key switch SW1, a voltage stabilizing circuit (7) and an LED lamp circuit (8). 3. An electronic cigarette according to claim 2, characterized in that: the voltage stabilizing circuit (7) adopts a voltage stabilizing chip of model BL8503, and the power input terminals on the voltage stabilizing chip are respectively connected with capacitors C2 and C3, the output terminals are respectively connected with capacitors C4 and C5, and the capacitors C2, C3, C4 and C5 are respectively grounded. 4. An electronic cigarette according to claim 2, characterized in that: the light-emitting diodes LED1 and LED2 on the LED lamp circuit (8) are connected in parallel and then connected in series with the resistor R10, and the light-emitting diodes LED3 and LED4 are connected in parallel and connected with the resistor R8 in series. 5. An electronic cigarette according to claim 1, characterized in that it further includes a battery reverse connection protection circuit (9) connected to the battery, and the battery reverse connection protection circuit (9) is field effect transistors Q5 and Q11 The parallel circuit, the models of the field effect transistors Q5 and Q11 are both A03400. 6. An electronic cigarette according to claim 1, characterized in that: said MCU processor is also connected with a low voltage alarm device.