CN111884351A

CN111884351A - Electronic atomization device with wireless charging unit and charging control method thereof

Info

Publication number: CN111884351A
Application number: CN202010685309.4A
Authority: CN
Inventors: 林光榕; 郑贤彬; 张夕勇
Original assignee: Huizhou Xinhongwei Technology Co ltd
Current assignee: Huizhou Xinhongwei Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-11-03
Also published as: WO2022012224A1

Abstract

The invention discloses an electronic atomization device with a wireless charging unit and a charging control method thereof, and the electronic atomization device comprises an atomization component and a battery component, wherein the battery component comprises a flat shell and a battery bracket, a charging battery, a circuit control board and a flat wireless receiving coil which are arranged in the shell; the mobile phone wireless charging device has the beneficial effects that the electronic atomization equipment is placed on the mobile phone wireless charging device, so that the charging can be conveniently carried out, the charging efficiency is high, and the wireless charging is stable and reliable.

Description

Electronic atomization device with wireless charging unit and charging control method thereof

Technical Field

The invention relates to the technical field of electronic atomization equipment, in particular to electronic atomization equipment with a wireless charging unit and a charging control method of the electronic atomization equipment.

Background

Electronic atomizing devices generally include an atomizing assembly and a battery assembly for controlling the atomizing assembly and providing power to the atomizing assembly. The atomizing component comprises a heating unit, and the heating unit can atomize the solution to be atomized into vapor fog or bake the smoke cartridge to emit smoke for a user to suck.

The electronic atomization device specifically comprises an electronic cigarette, a medical medicine atomization device and the like, and the basic task of the electronic atomization device is to provide a heating process, convert a solution such as a tobacco liquid or a liquid medicine stored in the electronic atomization device into vapor, aerosol, steam or electronic cigarette smoke, or bake a cigarette cartridge to emit smoke.

The atomization assembly of the existing electronic atomization equipment is generally charged in a wired mode, and wireless charging is also carried out by utilizing the electromagnetic induction principle. The existing wireless charging mode needs to insert the electronic atomization equipment into a specially-made charging container for charging, the specially-made charging container is inconvenient to carry, accurate insertion is needed during charging to charge, the mobile phone wireless charging device is a common flat charging device, the mobile phone can be conveniently charged when being placed on the mobile phone wireless charging device, and therefore the electronic atomization equipment capable of being wirelessly charged by using the mobile phone wireless charging device is needed.

Disclosure of Invention

The present invention is directed to an electronic atomizer having a wireless charging unit and a charging control method thereof.

The technical scheme of the invention is realized as follows: an electronic atomization device with a wireless charging unit comprises an atomization assembly and a battery assembly, wherein the battery assembly is used for providing a power supply for the atomization assembly and controlling the atomization assembly, the battery assembly comprises a flat shell and a battery bracket, a rechargeable battery, a circuit control board and a flat wireless receiving coil which are arranged in the shell, the rechargeable battery, the circuit control board and the wireless receiving coil are arranged on the battery bracket, the circuit control board is provided with a microcontroller, a wireless charging unit and a charging control unit, the wireless receiving coil, the wireless charging unit, the charging control unit and the rechargeable battery are electrically connected in sequence, the wireless receiving coil receives an electromagnetic signal sent by the wireless charging device and converts the electromagnetic signal into a voltage output to the wireless charging unit, and the wireless charging unit outputs the voltage to the charging control unit, the charging control unit outputs charging voltage to charge the rechargeable battery, and the microcontroller is electrically connected with the charging control unit to perform charging control.

Preferably, the circuit control board is further provided with a wired input interface end and a switching unit, the wired input interface end is used for accessing an externally input voltage through a power line, the switching unit is arranged between the wireless charging unit or the wired input interface end and the charging control unit, the switching unit is provided with a switch for switching, and the output voltage of the wireless charging unit and the voltage of the wired input interface end are switched and then output to the charging control unit.

Preferably, the switching unit includes a first switch and a second switch, the first switch controls to output the output voltage of the wireless charging unit, the second switch controls to output the voltage of the wired input interface terminal, and the first switch and the second switch cannot be turned on simultaneously; when the wireless charging unit generates output voltage and the wired input interface end is not connected with working voltage, the switching unit opens the first switch and closes the second switch to output the output voltage of the wireless charging unit; when the wired input interface end is connected with working voltage, the switching unit sends a signal to close the wireless charging unit, and the switching unit closes the first switch and opens the second switch to output the voltage of the wired input interface end.

Preferably, the circuit control board is further provided with an overvoltage detection unit, the overvoltage detection unit detects the input voltage of the charging control unit and sends an overvoltage detection signal to the microcontroller, and when the voltage is excessive, the microcontroller closes the charging control unit and stops charging to protect the rechargeable battery.

Preferably, the circuit control board is further provided with an ambient temperature detection unit, the ambient temperature detection unit detects ambient temperature and sends an ambient temperature detection signal to the microcontroller, and when the ambient temperature is higher than a highest set value or lower than a lowest set value, the microcontroller turns off the charging control unit and stops charging to protect the rechargeable battery.

Preferably, the wireless charging unit comprises a chip U4 with 17 pins, the 1 st pin of the chip U4 is grounded, the 2 nd pin is connected with one end of a capacitor C17, the other end of the capacitor C17 is simultaneously connected with the 16 th pin and one end of a capacitor C19, a capacitor C6, a capacitor C15 and a capacitor C18, the other ends of the capacitor C19, the capacitor C6 and the capacitor C15 are simultaneously connected with a node L1, the 3 rd pin is connected with one end of a capacitor C16, the other end of the capacitor C16 is simultaneously connected with the 5 th pin, a node L2 and the other end of the capacitor C18, a wireless receiving coil L is connected between the node L1 and the node L2, the 4 th pin and the 17 th pin are grounded, the 6 th pin is connected with an chip internal synchronous rectification output signal terminal VRECT, the 7 th pin is connected with one end of a resistor R33, and the other end of the resistor R33 is simultaneously connected with the chip internal synchronous rectification output signal terminal VRECT and the capacitor, One end of a capacitor C25, the other ends of the capacitor C24 and the capacitor C25 are grounded simultaneously, the 8 th pin is connected with one ends of a resistor R32 and a resistor R21 simultaneously, the other end of the resistor R32 is grounded, the other end of the resistor R21 is connected with a power supply signal terminal V5V used in the chip, the 9 th pin is connected with one end of a resistor R39, the 10 th pin is connected with one end of a resistor R40, the other ends of the resistor R39 and the resistor R40 are grounded simultaneously, the 11 th pin is connected with an enable signal terminal EN-B of the chip U4, the 12 th pin is connected with one ends of a resistor R12 and a capacitor C23 simultaneously, the other ends of the resistor R12 and the capacitor C23 are grounded simultaneously, the 13 th pin is connected with one ends of a power supply signal terminal V5V and a capacitor C22 used in the chip simultaneously, the other end of the capacitor C573C 5 is grounded, the 14 th pin is connected with one end of a wireless output voltage terminal W-VO, the 15 th pin is simultaneously connected with the chip internal synchronous rectification output signal end VRECT and one end of a capacitor C21, and the other end of the capacitor C21 is grounded.

Preferably, the microcontroller comprises a chip MCU with 25 pins, wherein the 1 st pin of the chip MCU is connected with a loop temperature detection switch end NTC-SW, the 2 nd pin is connected with a loop temperature detection signal end NTC-DET, the 3 rd pin is connected with an overvoltage detection signal end CHARG-DET, the 4 th pin is connected with a reset signal end RST, the 7 th pin is grounded, the 8 th pin is connected with a data burning signal end SWDIO, the 9 th pin is simultaneously connected with one ends of a resistor R19, a capacitor C5 and a capacitor C3, the other end of the resistor R19 is connected with a battery positive electrode BAT +, the other ends of the capacitor C5 and the capacitor C3 are respectively grounded, the 10 th pin is connected with a BLUE indicator light signal end LED-BLUE, the 11 th pin is connected with a GREEN indicator light signal end LED-GREEN, the 12 th pin is connected with a RED indicator light signal end LED-RED, the 13 th pin is connected with a first setting signal end I-, the 14 th pin is connected with a charging current second SET signal terminal I-SET2, the 15 th pin is connected with a charging enable signal terminal CHARG-EN, the 16 th pin is connected with a charging state indication signal terminal CHARG-STAT, the 22 th pin is connected with a burning clock signal terminal SWCLK, the 23 th pin is connected with an enable signal terminal EN-B of a chip U4, and the 25 th pin is grounded.

Preferably, the overvoltage detection unit includes a resistor R13, a resistor R14, a resistor R15, a capacitor C9 and a zener diode D2, one end of the resistor R15, one end of the capacitor C9 and one end of the resistor R14 are simultaneously connected to the overvoltage detection signal terminal CHARG-DET, the other ends of the resistor R15 and the capacitor C9 are all grounded, the other end of the resistor R14 is simultaneously connected to one end of the resistor R13 and the cathode of the zener diode D2, the anode of the zener diode D2 is grounded, and the other end of the resistor R13 is connected to the switching unit output voltage terminal VIN.

Preferably, the loop temperature detecting unit includes a thermistor R17 and a capacitor C11, one end of the thermistor R17 is connected to the loop temperature detecting switch end NTC-SW, the other end of the thermistor R17 is connected to both the loop temperature detecting signal end NTC-DET and one end of the capacitor C11, and the other end of the capacitor C11 is grounded.

Preferably, the switching unit includes a MOS transistor Q3 as a first switch and a MOS transistor Q4 as a second switch, a D pole of the MOS transistor Q3 is connected to the wireless output voltage terminal W-VOUT and one end of a resistor R35 at the same time, the other end of the resistor R35 is connected to the wireless charging enable signal terminal WIR-EN and one end of a resistor R34 at the same time, the other end of the resistor R34 is grounded, a G pole of the MOS transistor Q3 is connected to the enable signal terminal EN-B of the chip U4, a D pole of the MOS transistor Q4 is connected to the wired input interface terminal VBUS and one end of the resistor R36 at the same time, the other end of the resistor R36 is connected to the enable signal terminal EN-B of the chip U4 and one end of the resistor R37 at the same time, the other end of the resistor R37 is grounded, and an S pole of the MOS transistor Q3 and an S pole of the MOS transistor Q4 are connected to the switching unit output voltage terminal VIN at.

Preferably, the charging control unit includes a chip U2 having 11 pins, the 1 st pin of the chip U2 is connected to a capacitor C7, one end of a capacitor C8 and a switching unit output voltage terminal VIN at the same time, the other ends of the capacitor C7 and the capacitor C8 are grounded, the 2 nd pin is connected to one end of a resistor R38, a resistor R26, a resistor R10, a resistor R2 and a resistor R9 at the same time, the other end of the resistor R38 is connected to a D pole of a MOS transistor Q6, a G pole of the MOS transistor Q6 is connected to an enable signal terminal EN-B of the chip U4, an S pole of the MOS transistor Q6 is connected to a charging current second setting signal terminal I-SET2, the other ends of the resistor R26 and the resistor R10 are connected to the charging current second setting signal terminal I-SET2, the other end of the resistor R2 is connected to a charging current first setting signal terminal I-1, the other end of the resistor R9 is grounded, and the 3 rd pin is grounded, the 4 th pin is connected with one end of a resistor R8, the other end of the resistor R8 is grounded, the 7 th pin is grounded, the 8 th pin is simultaneously connected with one end of a resistor R16 and a charging state indicating signal end CHARG-STAT, the other end of the resistor R16 is connected with one end of a battery positive electrode BAT +, the 9 th pin is simultaneously connected with one end of a resistor R25 and one end of a resistor R4, the other end of the resistor R25 is grounded, the other end of the resistor R4 is connected with a charging enabling signal end CHARG-EN, the 10 th pin is simultaneously connected with one end of a capacitor C4 and the battery positive electrode BAT +, the other end of the capacitor C4 is grounded, and the 11 th.

Another technical solution of the present invention is a charging control method for an electronic atomization device having a wireless charging unit, including the steps of:

(1) setting or initializing parameters of the electronic atomization equipment before use;

(2) the microcontroller judges whether the wired input interface end has voltage, if so, the next step is carried out, and if not, the step (6) is carried out;

(3) the switching unit sends a signal to close the wireless charging unit, switches the switch, and outputs the voltage of the wired input interface end to the charging control unit;

(4) the microcontroller sends a first control signal to the charging control unit to adjust the charging current to a first gear current;

(5) the microcontroller controls the wired charging state LED indicator lamp to be turned on, and then the step (10) is carried out;

(6) the microcontroller judges whether the wireless charging unit has output voltage, if so, the next step is carried out, and if not, the step (2) is returned;

(7) the switching unit switches a switch and outputs the output voltage of the wireless charging unit to the charging control unit;

(8) the microcontroller sends a second control signal to the charging control unit to adjust the charging current to a second gear current;

(9) the microcontroller controls the wireless charging state LED indicator lamp to be turned on;

(10) the charging control unit outputs a charging voltage to charge the rechargeable battery;

(11) the environment temperature detection unit measures the environment temperature and reads a temperature value;

(12) the microcontroller selects charging currents of different gears according to different environmental temperatures;

(13) the microcontroller judges whether the ambient temperature exceeds the highest set value, if not, the next step is carried out, and if so, the step (15) is carried out;

(14) the microcontroller judges whether the ambient temperature is lower than the lowest set value, if so, the next step is carried out, and if not, the step (2) is returned;

(15) the microcontroller turns off the voltage output of the charge control unit.

The invention has the following beneficial effects: the invention is provided with the flat shell and the flat wireless receiving coil, when the wireless charging is carried out, the electronic atomization equipment does not need to be inserted into a special charging container for charging, and the wireless charging device of the mobile phone can be utilized, so that the electronic atomization equipment can be conveniently placed on the wireless charging device of the mobile phone for charging; in addition, the wireless charging unit is reliably controlled by the microcontroller, so that the charging efficiency is high; the wireless receiving coil is arranged on the battery bracket, so that the wireless receiving coil is convenient to install and fix, and the wireless charging is stable and reliable.

Drawings

Fig. 1 is a perspective exploded structural view of a battery pack according to the present invention;

FIG. 2 is a front view of the battery assembly of the present invention with the housing removed;

FIG. 3 is a side view of the battery assembly of the present invention with the housing removed;

FIG. 4 is a block diagram of the circuit configuration on the circuit control board of the present invention;

fig. 5 is a circuit diagram of a wireless charging unit of the present invention;

FIG. 6 is a microcontroller and its circuit diagram of the present invention;

FIG. 7 is a circuit diagram of an over-voltage detection unit of the present invention;

FIG. 8 is a circuit diagram of the loop temperature detecting unit of the present invention;

FIG. 9 is a circuit diagram of a switching unit of the present invention;

fig. 10 is a circuit diagram of a charge control unit of the present invention;

fig. 11 is a flowchart of a charge control method of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

the electronic atomization device with the wireless charging unit comprises an atomization assembly (not shown in the figure) and a battery assembly, wherein the battery assembly is used for supplying power to the atomization assembly and controlling the atomization assembly.

As shown in fig. 1-4, the battery assembly includes a flat housing 1, and a battery holder 2, a rechargeable battery 3, a circuit control board 4, and a flat wireless receiving coil 5 which are provided in the housing 1, the rechargeable battery 3, the circuit control board 4, and the wireless receiving coil 5 are provided on the battery holder, the circuit control board 4 is provided with a microcontroller 6, a wireless charging unit 7, and a charging control unit 10, and the wireless receiving coil 5, the wireless charging unit 7, the charging control unit 10, and the rechargeable battery 3 are electrically connected in sequence. The wireless receiving coil 5 receives an electromagnetic signal sent by a wireless charging device (not shown) and converts the electromagnetic signal into a voltage to output to the wireless charging unit 7, the wireless charging unit 7 outputs the voltage to the charging control unit 10, finally, the charging control unit 10 outputs the charging voltage to charge the rechargeable battery 3, and the microcontroller 6 is electrically connected with the charging control unit 10 to perform charging control. The flat housing 1 can be conveniently placed on a flat wireless charging device, the flat wireless receiving coil 5 can efficiently receive an electromagnetic signal emitted by a transmitting coil of the flat wireless charging device, and the wireless charging device of the embodiment can be a flat mobile phone wireless charging device. The wireless receiving coil 5 is arranged on the battery bracket 2, so that the installation and the fixation are convenient, and the wireless charging is stable and reliable.

As shown in fig. 4, the circuit control board 4 is further provided with a wired input interface terminal 8 and a switching unit 9, the wired input interface terminal 8 is used for accessing an externally input voltage through a power line, and the switching unit 9 is provided with a switch (not shown) for switching and outputting an output voltage of the wireless charging unit 7 or a voltage of the wired input interface terminal 8. The switching unit 9 is provided between the wireless charging unit 7 or the wired input interface terminal 8 and the charging control unit 10, the switching unit 9 performs switching to switch the output voltage of the wireless charging unit and the voltage of the wired input interface terminal and output the switching to the charging control unit 10, and the charging control unit 10 charges the rechargeable battery 3.

As shown in fig. 4, the switching unit 9 includes a first switch and a second switch (not shown), wherein the first switch controls the output of the output voltage of the wireless charging unit 7, the second switch controls the output of the voltage of the wired input interface terminal 8, and the first switch and the second switch cannot be turned on at the same time. When the wireless charging unit 7 generates the output voltage and the wired input interface terminal 8 does not access the working voltage, the switching unit 9 opens the first switch and closes the second switch to output the output voltage of the wireless charging unit 7. The switching unit 9 outputs the output voltage of the wireless charging unit 7 or the voltage of the wired input interface terminal 8 to the charging control unit 10 by switching the first switch and the second switch. When the wired input interface end 8 is connected with the working voltage, the switching unit 9 sends a signal to close the wireless charging unit 7, the switching unit 9 closes the first switch and opens the second switch, and the voltage of the wired input interface end 8 is output.

The circuit control board 4 shown in fig. 1-3 is further provided with an overvoltage detection unit (not shown), the overvoltage detection unit detects the input voltage of the charging control unit and sends an overvoltage detection signal to the microcontroller, and when the voltage is excessive, the microcontroller turns off the charging control unit to stop charging so as to protect the rechargeable battery 3.

As shown in fig. 1-3, the circuit control board 4 is further provided with an ambient temperature detection unit (not shown), the ambient temperature detection unit detects an ambient temperature and sends an ambient temperature detection signal to the microcontroller, and when the ambient temperature is higher than a highest set value or lower than a lowest set value, the microcontroller turns off the charging control unit to stop charging so as to protect the rechargeable battery 3.

As shown in fig. 5, the wireless charging unit 7 includes a chip U4 having 17 pins, a pin 1 of the chip U4 is grounded, a pin 2 is connected to one end of a capacitor C17, the other end of a capacitor C17 is connected to the pin 16 and the capacitor C19, the capacitor C6, the capacitor C15 and one end of a capacitor C18, the other ends of the capacitor C19, the capacitor C6 and the capacitor C15 are connected to a node L1, a pin 3 is connected to one end of a capacitor C16, the other end of a capacitor C16 is connected to the pin 5, the node L2 and the other end of a capacitor C18, a wireless receiving coil L (i.e., the wireless receiving coil 5 in fig. 1-4) is connected between the nodes L1 and L2, a pin 4 and a pin 17 are grounded, a pin 6 is connected to an internal synchronous rectification output signal terminal VRECT of the chip, a pin 7 is connected to one end of a resistor R33, and the other end of the resistor R33 is connected to an internal synchronous output signal terminal VRECT of the chip, One end of a capacitor C25, the other ends of a capacitor C24 and a capacitor C25 are simultaneously grounded, the 8 th pin is simultaneously connected with one ends of a resistor R32 and a resistor R21, the other end of a resistor R32 is grounded, the other end of the resistor R21 is connected with a power supply signal terminal V5V used in the chip, the 9 th pin is connected with one end of a resistor R39, the 10 th pin is connected with one end of a resistor R40, the other ends of the resistor R39 and the resistor R40 are simultaneously grounded, the 11 th pin is connected with an enable signal terminal EN-B of a chip U4, the 12 th pin is simultaneously connected with one ends of a resistor R12 and a capacitor C23, the other ends of a resistor R12 and a capacitor C23 are simultaneously grounded, the 13 th pin is simultaneously connected with one end of a power supply signal terminal V5 and a capacitor C22 used in the chip, the other end of a capacitor C22 is grounded, the 14 th pin is simultaneously connected with one end of a wireless output voltage terminal W-VOUT and one end of a capacitor C20, the other end of a capacitor C, the other terminal of the capacitor C21 is connected to ground. In the wireless charging unit, the wireless receiving coil L receives the electromagnetic signal of the wireless charging device, converts the electromagnetic signal into current for output, and outputs voltage to two ends of the rechargeable battery through the wireless output voltage end W-VOUT.

As shown in fig. 6, the microcontroller 6 includes a chip MCU with 25 pins, a pin 1 of the chip MCU is connected to a loop temperature detection switch terminal NTC-SW, a pin 2 is connected to a loop temperature detection signal terminal NTC-DET, a pin 3 is connected to an overvoltage detection signal terminal CHARG-DET, a pin 4 is connected to a reset signal terminal RST, a pin 7 is grounded, a pin 8 is connected to a data recording signal terminal SWDIO, the data recording signal terminal SWDIO can record or set some preset parameter values, a pin 9 is simultaneously connected to one end of a resistor R19, a capacitor C5, and a capacitor C3, the other end of the resistor R19 is connected to a battery positive electrode BAT +, the other ends of the capacitor C5 and the capacitor C3 are grounded, the pin 10 is connected to a BLUE indicator light signal terminal LED-BLUE, the pin 11 is connected to a GREEN indicator light signal terminal LED-GREEN, the pin 12 is connected to a RED indicator light signal terminal LED-RED, the 13 th pin is connected with a first charging current setting signal end I-SET1, the 14 th pin is connected with a second charging current setting signal end I-SET2, the 15 th pin is connected with a charging enable signal end CHARG-EN, the 16 th pin is connected with a charging state indication signal end CHARG-STAT, the 22 th pin is connected with a burning clock signal end SWCLK, the 23 th pin is connected with an enable signal end EN-B of a chip U4, and the 25 th pin is grounded. The MCU and the connection circuit thereof form a main control circuit for controlling wired charging or wireless charging, indicating the charging state, and performing power-off protection according to charging overvoltage, overhigh or overlow ring temperature, thereby preventing charging faults.

As shown in fig. 7, the overvoltage detection signal terminal CHARG-DET is simultaneously connected to one end of the resistor R15, the capacitor C9 and one end of the resistor R14, the other ends of the resistor R15 and the capacitor C9 are all grounded, the other end of the resistor R14 is simultaneously connected to one end of the resistor R13 and the cathode of the zener diode D2, the other end of the resistor R13 is connected to the output voltage terminal VIN of the switching unit, and the anode of the zener diode D2 is grounded. The circuit structure is used for detecting a voltage signal of a voltage output end VIN of the switching unit and outputting a chip MCU, so that charging overvoltage is prevented.

As shown in fig. 8, the NTC-SW terminal of the loop temperature detection switch is connected to one terminal of a resistor R17, the other terminal of the resistor R17 is connected to both the NTC-DET terminal of the loop temperature detection signal and one terminal of a capacitor C11, and the other terminal of the capacitor C11 is grounded. The circuit structure is used for detecting the ambient temperature and outputting a loop temperature detection signal to the chip MCU, the chip MCU can select the charging current of different gears according to different ambient temperatures, if the ambient temperature is high, the charging current of a low-current gear is selected, and the problems of overlarge charging current, battery overheating and the like are prevented. In addition, when the ambient temperature is lower than the lowest set value or higher than the highest set value, the voltage output of the charging control unit can be automatically closed, and the problems of expansion, incapability of charging and the like of the battery are prevented.

As shown in fig. 9, the switching unit 9 includes a MOS transistor Q3 as a first switch and a MOS transistor Q4 as a second switch, a D-pole of the MOS transistor Q3 is connected to both the wireless output voltage terminal W-VOUT and one end of a resistor R35, the other end of the resistor R35 is connected to both the wireless charging enable signal terminal WIR-EN and one end of a resistor R34, the other end of the resistor R34 is grounded, a G-pole of the MOS transistor Q3 is connected to the enable signal terminal EN-B of the chip U4, a D-pole of the MOS transistor Q4 is connected to both the wired input interface terminal VBUS (i.e., the wired input interface terminal 8 in fig. 4) and one end of the resistor R36, the other end of the resistor R36 is connected to both the enable signal terminal EN-B of the chip U4 and one end of the resistor R37, the other end of the resistor R37 is grounded, and an S-pole of the MOS transistor Q3 and an S-pole of the MOS transistor Q4 are connected.

As shown in fig. 10, the charging control unit 10 includes a chip U2 having 11 pins, the 1 st pin of the chip U2 is connected to the capacitor C7, one end of the capacitor C8 and the switching unit output voltage VIN passing through the switching unit, the output voltage after switching by the switching unit is input here, the other ends of the capacitor C7 and the capacitor C8 are grounded, the 2 nd pin is connected to the resistor R38, the resistor R26, the resistor R10, the resistor R2 and one end of the resistor R9, the other end of the resistor R38 is connected to the D pole of the MOS transistor Q6, the G pole of the MOS transistor Q6 is connected to the enable signal end EN-B of the chip U4, the S pole of the MOS transistor Q6 is connected to the charging current second setting signal end I-SET2, the other ends of the resistor R26 and the resistor R10 are connected to the charging current second setting signal end I-2, the other end of the resistor R2 is connected to the charging current first setting signal end I-SET1, the other end R9 is grounded, the 3 rd pin is grounded, the 4 th pin is connected with one end of a resistor R8, the other end of a resistor R8 is grounded, the 7 th pin is grounded, the 8 th pin is simultaneously connected with one end of a resistor R16 and a charging state indicating signal terminal CHARG-STAT, the other end of the resistor R16 is connected with a battery positive electrode BAT +, the 9 th pin is simultaneously connected with one ends of a resistor R25 and a resistor R4, the other end of a resistor R25 is grounded, the other end of the resistor R4 is connected with a charging enabling signal terminal CHARG-EN, the 10 th pin is simultaneously connected with one end of a capacitor C4 and the battery positive electrode BAT +, a charging voltage is output to the rechargeable battery at the position, the other end of the capacitor C4 is. The charging control unit inputs the output voltage switched by the switching unit and outputs the charging voltage to the rechargeable battery. The charging enable signal terminal CHARG-EN is used for controlling whether the charging control unit performs charging, if so, the charging is performed, and if not, the charging is turned off.

As shown in fig. 9 and 10, the enable signal terminal EN-B of the chip U4 turns off the chip U4 when high and turns on the chip U4 when low. When the working voltage of the wired input interface terminal VBUS is 5V, the enable signal terminal EN-B of the chip U4 is at a high level, at this time, the chip U4 is turned off, the wireless charging unit 7 is deactivated, the MOS transistor Q6 of the charging control unit 10 is turned on, the connection resistance of the first setting signal terminal I-SET1 is adjusted, and the charging current is adjusted to a first level current, for example, 600 mA. When the working voltage of the wired input interface terminal VBUS is not 0V, the enable signal terminal EN-B of the chip U4 is at a low level, the chip U4 is enabled, the wireless charging unit 7 is enabled, the MOS transistor Q6 of the charging control unit 10 is turned off, the connection resistance of the first setting signal terminal I-SET1 is adjusted, and the charging current is adjusted to a second level current, for example, 300 mA. Generally, the charging current in wireless charging should be smaller than that in wired charging.

When the wired input interface end VBUS has no working voltage and the wireless output voltage end W-VOUT has the working voltage, the wireless charging enabling signal end WIR-EN is at a high level, meanwhile, the enabling signal end EN-B of the chip U4 is at a low level, the chip U4 and the wireless charging unit 7 are enabled, meanwhile, the MOS tube Q3 of the first switch is opened, the MOS tube Q4 of the second switch is closed, at the moment, the voltage of the wireless output voltage end W-VOUT is output to the output voltage end VIN of the switching unit through the MOS tube Q3, and the charging of the charging battery by the wireless charging unit is achieved.

When the wired input interface end VBUS has the working voltage, the enable signal end EN-B of the chip U4 is at a high level, and no matter whether the wireless charging unit 7 is already working, the chip U4 and the wireless charging unit 7 are deactivated, the wireless output voltage end W-VOUT has no working voltage, the wireless charging enable signal end WIR-EN is at a low level, so that the MOS transistor Q3 of the first switch is turned off, the MOS transistor Q4 of the second switch is turned on, and at this time, the voltage of the wired input interface end VBUS is output to the switching unit output voltage end VIN through the MOS transistor Q4, so that the wired input interface end VBUS charges the rechargeable battery.

As shown in fig. 11, a charging control method for an electronic atomization device with a wireless charging unit according to the present invention includes the following steps:

(3) the switching unit sends a signal to close the wireless charging unit, switches on and off, namely closes the first switch, opens the second switch, and outputs the voltage of the wired input interface end to the charging control unit;

(7) the switching unit switches on and off, namely, the first switch is turned on, the second switch is turned off, and the output voltage of the wireless charging unit is output to the charging control unit;

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the invention, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims

1. An electronic atomization device with a wireless charging unit comprises an atomization assembly and a battery assembly, wherein the battery assembly is used for providing power for the atomization assembly and controlling the atomization assembly, and is characterized in that the battery assembly comprises a flat shell and a battery bracket, a rechargeable battery, a circuit control board and a flat wireless receiving coil which are arranged in the shell, the rechargeable battery, the circuit control board and the wireless receiving coil are arranged on the battery bracket, the circuit control board is provided with a microcontroller, the wireless charging unit and a charging control unit, the wireless receiving coil, the wireless charging unit, the charging control unit and the rechargeable battery are electrically connected in sequence, the wireless receiving coil receives an electromagnetic signal sent by the wireless charging device and converts the electromagnetic signal into voltage to be output to the wireless charging unit, and the wireless charging unit outputs the voltage to the charging control unit, the charging control unit outputs charging voltage to charge the rechargeable battery, and the microcontroller is electrically connected with the charging control unit to perform charging control.

2. The electronic atomization device with the wireless charging unit according to claim 1, wherein the circuit control board is further provided with a wired input interface end and a switching unit, the wired input interface end is used for accessing an externally input voltage through a power line, the switching unit is arranged between the wireless charging unit or the wired input interface end and the charging control unit, the switching unit is provided with a switch for switching, and the output voltage of the wireless charging unit and the voltage of the wired input interface end are switched and then output to the charging control unit.

3. The electronic atomization device with the wireless charging unit according to claim 2, wherein the switching unit comprises a first switch and a second switch, the first switch controls output of the output voltage of the wireless charging unit, the second switch controls output of the voltage of the wired input interface terminal, and the first switch and the second switch cannot be opened simultaneously; when the wireless charging unit generates output voltage and the wired input interface end is not connected with working voltage, the switching unit opens the first switch and closes the second switch to output the output voltage of the wireless charging unit; when the wired input interface end is connected with working voltage, the switching unit sends a signal to close the wireless charging unit, and the switching unit closes the first switch and opens the second switch to output the voltage of the wired input interface end.

4. The electronic atomization device with the wireless charging unit of claim 1, wherein an overvoltage detection unit is further arranged on the circuit control board, the overvoltage detection unit detects an input voltage of the charging control unit and sends an overvoltage detection signal to the microcontroller, and when the overvoltage occurs, the microcontroller turns off the charging control unit to stop charging so as to protect a rechargeable battery.

5. The electronic atomizing device with the wireless charging unit according to claim 1, wherein an ambient temperature detecting unit is further disposed on the circuit control board, the ambient temperature detecting unit detects an ambient temperature and sends an ambient temperature detecting signal to the microcontroller, and when the ambient temperature is higher than a highest set value or lower than a lowest set value, the microcontroller turns off the charging control unit to stop charging to protect the rechargeable battery.

6. The electronic atomizer device according to claim 1, wherein the wireless charging unit comprises a chip U4 having 17 pins, the 1 st pin of the chip U4 is connected to ground, the 2 nd pin is connected to one end of a capacitor C17, the other end of the capacitor C17 is connected to one end of a 16 th pin and a capacitor C19, a capacitor C6, a capacitor C15 and a capacitor C18, the other ends of the capacitor C19, the capacitor C6 and the capacitor C15 are connected to a node L1, the 3 rd pin is connected to one end of a capacitor C16, the other end of the capacitor C16 is connected to the other end of a 5 th pin, a node L2 and the other end of the capacitor C18, a wireless receiving coil L is connected between the nodes L1 and L2, the 4 th pin and the 17 th pin are connected to ground, the 6 th pin is connected to an internal synchronous rectification signal terminal VRECT of the chip, the 7 th pin is connected to one end of a resistor R33, and the other end of the resistor R33 is connected to the internal synchronous rectification signal terminal of the chip and the VRECT 24 and the other, One end of a capacitor C25, the other ends of the capacitor C24 and the capacitor C25 are grounded simultaneously, the 8 th pin is connected with one ends of a resistor R32 and a resistor R21 simultaneously, the other end of the resistor R32 is grounded, the other end of the resistor R21 is connected with a power supply signal terminal V5V used in the chip, the 9 th pin is connected with one end of a resistor R39, the 10 th pin is connected with one end of a resistor R40, the other ends of the resistor R39 and the resistor R40 are grounded simultaneously, the 11 th pin is connected with an enable signal terminal EN-B of the chip U4, the 12 th pin is connected with one ends of a resistor R12 and a capacitor C23 simultaneously, the other ends of the resistor R12 and the capacitor C23 are grounded simultaneously, the 13 th pin is connected with one ends of a power supply signal terminal V5V and a capacitor C22 used in the chip simultaneously, the other end of the capacitor C573C 5 is grounded, the 14 th pin is connected with one end of a wireless output voltage terminal W-VO, the 15 th pin is simultaneously connected with the chip internal synchronous rectification output signal end VRECT and one end of a capacitor C21, and the other end of the capacitor C21 is grounded.

7. The electronic atomizer apparatus according to claim 6, wherein said microcontroller comprises a chip MCU having 25 pins, said chip MCU has pin 1 connected to the loop temperature detection switch terminal NTC-SW, pin 2 connected to the loop temperature detection signal terminal NTC-DET, pin 3 connected to the over voltage detection signal terminal CHARG-DET, pin 4 connected to the reset signal terminal RST, pin 7 connected to ground, pin 8 connected to the data recording signal terminal SWDIO, pin 9 connected to one end of the resistor R19, the capacitor C5, the capacitor C3, the resistor R19 connected to the battery positive electrode BAT +, the capacitor C5, the capacitor C3 connected to ground, pin 10 connected to the BLUE indicator light signal terminal LED-BLUE, pin 11 connected to the GREEN indicator light signal terminal LED-GREEN, pin 12 connected to the RED indicator light signal terminal LED-RED, the 13 th pin is connected with a first charging current setting signal end I-SET1, the 14 th pin is connected with a second charging current setting signal end I-SET2, the 15 th pin is connected with a charging enable signal end CHARG-EN, the 16 th pin is connected with a charging state indication signal end CHARG-STAT, the 22 th pin is connected with a burning clock signal end SWCLK, the 23 th pin is connected with an enable signal end EN-B of a chip U4, and the 25 th pin is grounded.

8. The electronic atomizer device according to claim 4, wherein said overvoltage detection unit comprises a resistor R13, a resistor R14, a resistor R15, a capacitor C9 and a zener diode D2, wherein one end of said resistor R15, one end of said capacitor C9 and one end of said resistor R14 are simultaneously connected to an overvoltage detection signal terminal CHARG-DET, the other end of said resistor R15 and the other end of said capacitor C9 are both grounded, the other end of said resistor R14 is simultaneously connected to one end of a resistor R13 and a cathode of said zener diode D2, an anode of said zener diode D2 is grounded, and the other end of said resistor R13 is connected to an output voltage terminal VIN of said switching unit.

9. The electronic atomizer device according to claim 5, wherein said ambient temperature detecting unit comprises a thermistor R17 and a capacitor C11, one end of said thermistor R17 is connected to the ambient temperature detecting switch terminal NTC-SW, the other end of said thermistor R17 is connected to both the ambient temperature detecting signal terminal NTC-DET and one end of a capacitor C11, and the other end of said capacitor C11 is grounded.

10. The electronic atomizer device of claim 3 wherein, the switching unit comprises a MOS transistor Q3 as a first switch and a MOS transistor Q4 as a second switch, the D pole of the MOS transistor Q3 is connected with the wireless output voltage end W-VOUT and one end of the resistor R35 at the same time, the other end of the resistor R35 is simultaneously connected with a wireless charging enable signal end WIR-EN and one end of a resistor R34, the other end of the resistor R34 is grounded, the G pole of the MOS transistor Q3 is connected with an enable signal end EN-B of the chip U4, the D pole of the MOS transistor Q4 is connected to both the wired input interface terminal VBUS and one end of the resistor R36, the other end of the resistor R36 is connected with an enable signal terminal EN-B of the chip U4 and one end of the resistor R37 at the same time, the other end of the resistor R37 is grounded, and the S pole of the MOS transistor Q3 and the S pole of the MOS transistor Q4 are simultaneously connected with the output voltage end VIN of the switching unit.

11. The electronic atomizer with wireless charging unit as claimed in claim 2, wherein said charging control unit comprises a chip U2 with 11 pins, the 1 st pin of said chip U2 is connected to one end of a capacitor C7, a capacitor C8 and a switching unit output voltage end VIN at the same time, the other ends of said capacitor C7 and C8 are grounded, the 2 nd pin is connected to one end of a resistor R38, a resistor R26, a resistor R10, a resistor R2 and a resistor R9 at the same time, the other end of said resistor R38 is connected to the D pole of a MOS transistor Q6, the G pole of said MOS transistor Q6 is connected to the enable signal end EN-B of a chip U4, the S pole of said MOS transistor Q6 is connected to a charging current second setting signal end I-2, the other ends of said resistor R26 and said resistor R10 are connected to said charging current second setting signal end I-2, the other end of said resistor R2 is connected to a charging current first setting signal end I-SET1, the other end of the resistor R9 is grounded, the 3 rd pin is grounded, the 4 th pin is connected with one end of the resistor R8, the other end of the resistor R8 is grounded, the 7 th pin is grounded, the 8 th pin is simultaneously connected with one end of the resistor R16 and a charging state indicating signal terminal CHARG-STAT, the other end of the resistor R16 is connected with a battery positive electrode BAT +, the 9 th pin is simultaneously connected with one ends of the resistor R25 and the resistor R4, the other end of the resistor R25 is grounded, the other end of the resistor R4 is connected with a charging enabling signal terminal CHARG-EN, the 10 th pin is simultaneously connected with one end of the capacitor C4 and the battery positive electrode BAT +, the other end of the capacitor C4 is grounded, and the 11 th pin.

12. A charging control method of an electronic atomization device with a wireless charging unit is characterized by comprising the following steps: