Electronic atomization device

Abstract

The invention provides an electronic atomization device. The electronic atomization device comprises a heating element; a battery cell; the airflow controller is provided with a first electric connection end, a second electric connection end, a signal end and a power output end; the first electric connection end is electrically connected with the charging interface, the second electric connection end is electrically connected with the battery cell, and the power output end is electrically connected with the heating element; the display unit is electrically connected with the microcontroller; the microcontroller is used for receiving a level signal from at least one of the first electric connection end and the power output end and controlling the display unit to display the working state of the electronic atomization device or parameter information in working based on the driving signal. According to the electronic atomization device, the airflow controller integrates the power output function, the charging function and the protection function, the display unit can be controlled to display the remaining oil amount, the electric quantity, the charging state, the fault state and other information through the signals detected by the microcontroller, the circuit cost can be reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to an electronic atomization device. Background Art

[0002] An electronic atomization device is an electronic product that heats a liquid matrix, such as tobacco oil, to produce an aerosol for users to inhale. It generally consists of two parts: an atomizer and a power supply assembly. The atomizer stores the liquid matrix and is provided with an atomization core for heating the liquid matrix. The power supply assembly can supply power to the atomization core to generate heat to generate high temperature to heat the liquid matrix.

[0003] Existing electronic atomization devices generally use high-cost circuit solutions, such as microcontrollers, microphone switches, display screens, power output control circuits, charging circuits, and protection circuits to achieve functions such as power output, charging, protection, and information display. Summary of the invention

[0004] The present application provides an electronic atomization device, aiming to solve the problem of high circuit cost of existing electronic atomization devices.

[0005] The present application provides an electronic atomization device, comprising:

[0006] a heating element for heating the aerosol-forming substrate to generate an aerosol;

[0007] A battery cell, used to provide power to the heating element;

[0008] An airflow controller, comprising a first electrical connection end, a second electrical connection end, a signal end and a power output end; the first electrical connection end is electrically connected to the charging interface, the second electrical connection end is electrically connected to the battery core, and the power output end is electrically connected to the heating element;

[0009] a microcontroller connected to a signal terminal of the airflow controller and configured to receive a driving signal from the signal terminal;

[0010] A display unit, electrically connected to the microcontroller;

[0011] Wherein, the microcontroller is used to receive a level signal from at least one of the first electrical connection end and the power output end, and at the same time control the display unit to display the working status of the electronic atomization device or parameter information during operation based on the driving signal.

[0012] In one example, the microcontroller is configured to obtain a voltage value through the first electrical connection terminal or the positive terminal of the battery cell, thereby controlling the display unit to display the power level of the battery cell.

[0013] As an example, the ratio between the remaining power of the battery cell and the full power, such as a percentage, may be displayed; or the current specific value of a certain parameter of the battery cell, such as the battery cell voltage value, may be displayed.

[0014] In one example, the microcontroller is configured to receive a high level signal from the power output terminal and calculate a duration, and control the display unit to display the liquid level of the electronic atomization device based on the duration.

[0015] As an example, the ratio of the remaining liquid volume to the full liquid volume of the electronic atomization device may be displayed, such as a percentage; the specific value of the remaining liquid volume of the electronic atomization device may also be displayed, such as 1 ml, etc.

[0016] In one example, the first electrical connection terminal includes a first positive electrical connection terminal and a first negative electrical connection terminal, the first positive electrical connection terminal is electrically connected to the positive power supply electrode of the charging interface, and the first negative electrical connection terminal is grounded.

[0017] In one example, a filter capacitor is provided between the first positive electrical connection terminal and the first negative electrical connection terminal.

[0018] In one example, the second electrical connection terminal includes a second positive electrical connection terminal and a second negative electrical connection terminal, the second positive electrical connection terminal is electrically connected to the positive electrode of the battery cell and the microcontroller, and the second negative electrical connection terminal is electrically connected to the negative electrode of the battery cell and is grounded.

[0019] In one example, a protection circuit module is further included, and the protection circuit module is electrically connected between the second negative electrical connection terminal and the negative electrode of the battery cell.

[0020] In one example, a voltage divider circuit is further included, one end of the voltage divider circuit is electrically connected to the first electrical connection end, the other end of the voltage divider circuit is grounded, and the voltage divider signal generated by the voltage divider circuit is output to the microcontroller.

[0021] In one example, the voltage divider circuit includes a first resistor and a second resistor connected in series.

[0022] In one example, the airflow controller is configured to form an electrical path between the first electrical connection end and the second electrical connection end, and an electrical break between the second electrical connection end and a power output end when it is detected that the electronic atomization device is not being inhaled during charging of the battery cell; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is being inhaled during charging of the battery cell; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is not being inhaled when the battery cell is not being charged; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical break between the second electrical connection end and the power output end when it is detected that the electronic atomization device is not being inhaled when the battery cell is not being charged; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is being inhaled when the battery cell is not being charged.

[0023] In one example, the charging interface further includes a configuration channel, and the configuration channel is grounded through a second resistor.

[0024] In one example, the microcontroller has a power supply pin, a first input-output terminal, a second input-output terminal, a third input-output terminal, and a fourth input-output terminal;

[0025] The power supply pin is electrically connected to the battery cell, the first input-output terminal is electrically connected to the first electrical connection terminal, the second input-output terminal is electrically connected to the signal terminal, the third input-output terminal is electrically connected to the output terminal; and the fourth input-output terminal is electrically connected to the display unit.

[0026] The electronic atomization device provided in the present application has an airflow controller that integrates power output, charging and protection functions. The signal detected by the microcontroller can control the display unit to display information such as the remaining oil and power, charging status, fault status, etc., which can reduce circuit costs and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0028] Figure 1 is a schematic diagram of an electronic atomization device provided in an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of another electronic atomization device provided in an embodiment of the present application;

[0030] Figure 3It is a specific circuit diagram of the electronic atomization device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0033] Figure 1 It is a schematic diagram of the electronic atomization device provided in an embodiment of the present application.

[0034] like Figure 1 As shown, the electronic atomization device 100 includes an atomizer 10 and a power supply assembly 20, and the atomizer 10 and the power supply assembly 20 are not detachable.

[0035] The atomizer 10 includes a liquid storage chamber (not shown) for storing an aerosol-forming substrate and a heating element 11 . The heating element 11 atomizes the aerosol-forming substrate to form an inhalable aerosol under the action of power provided by a power supply assembly 20 .

[0036] In this example, the aerosol-forming substrate is a liquid aerosol-forming substrate. The atomizer 10 may also include a liquid transfer unit not shown. The liquid transfer unit may be, for example, cotton fiber, metal fiber, ceramic fiber, glass fiber, porous ceramic, etc., and the liquid aerosol-forming substrate stored in the liquid storage chamber may be transferred to the heating element 11 through capillary action.

[0037] The power supply assembly 20 includes a battery cell 21 and a circuit 22 .

[0038] The battery cell 21 provides power for operating the electronic atomization device 100. The battery cell 21 may be a rechargeable battery cell or a disposable battery cell.

[0039] The circuit 22 can control the overall operation of the electronic atomization device 100. The circuit 22 not only controls the operation of the battery cell 21 and the heating element 11, but also controls the operation of other elements in the electronic atomization device 100.

[0040] Figure 2 is a schematic diagram of another electronic atomization device provided in an embodiment of the present application, and Figure 1 The difference in this example is that the atomizer 10 is detachably connected to the power supply assembly 20 .

[0041] Figure 3 It is a specific circuit diagram of the electronic atomization device provided in the embodiment of the present application.

[0042] like Figure 3 As shown, the circuit shows the charging interface J1. The charging interface includes a positive power supply electrode VBUS, a configuration channel (CC1 / CC2), and a negative power supply electrode GND. The output voltage of the positive power supply electrode VBUS is between 4.5V and 5.5V, the configuration channel (CC1 / CC2) is grounded through resistors R1 / R2, and the negative power supply electrode GND is grounded. It can be understood that the charging interface J1 is not limited to the Lightning interface, Type-C interface, and Micro-USb interface.

[0043] The circuit also shows an airflow controller U1. The airflow controller U1 has a first electrical connection terminal, a second electrical connection terminal, a signal terminal (shown as an LED in the figure), and a power output terminal.

[0044] The first electrical connection end of the airflow controller U1 includes a first positive electrical connection end (shown as C+ in the figure) and a first negative electrical connection end (shown as C- in the figure), wherein the first positive electrical connection end is electrically connected to the positive power supply electrode VBUS of the charging interface J1, and the first negative electrical connection end is grounded. A filter capacitor C2 is provided between the first positive electrical connection end and the first negative electrical connection end.

[0045] The second electrical connection end of the airflow controller U1 includes a second positive electrical connection end (shown as B+ in the figure) and a second negative electrical connection end (shown as B- in the figure), the second positive electrical connection end is electrically connected to the positive electrode of the battery cell 21 (shown as VBAT+ of VBAT in the figure), and the second negative electrical connection end is electrically connected to the negative electrode of the battery cell 21 (shown as VBAT- of VBAT in the figure) and grounded. The power output end (shown as R in the figure) of the airflow controller U1 is electrically connected to one end of the heating element 11 (shown as Heating in the figure), and the other end of the heating element 11 is connected to the second negative electrical connection end B-. In a further implementation, the circuit also shows a protection circuit module U4 (PCM, Protection Circuit Module), which is mainly used to protect the battery cell 21 from overcharge, over-discharge, overcurrent and short circuit, thereby extending the service life of the battery cell 21. In a preferred implementation, the protection circuit module U4 is electrically connected between the second negative electrical connection end B- and the negative electrode of the battery cell 21.

[0046] The airflow controller U1 is configured to form an electrical path between the first electrical connection end and the second electrical connection end, and an electrical disconnection between the second electrical connection end and the power output end R when the electronic atomization device is detected to be not inhaled during the battery cell 21 being charged; when the electronic atomization device is detected to be inhaled during the battery cell 21 being charged, an electrical disconnection is formed between the first electrical connection end and the second electrical connection end, and an electrical path is formed between the second electrical connection end and the power output end R. It is understandable that when the battery cell 21 is not charged, when it is detected that the electronic atomization device is not inhaled, an electrical disconnection is formed between the first electrical connection end and the second electrical connection end, and an electrical disconnection is formed between the second electrical connection end and the power output end R; when the battery cell 21 is not charged, when it is detected that the electronic atomization device is inhaled, an electrical disconnection is formed between the first electrical connection end and the second electrical connection end, and an electrical path is formed between the second electrical connection end and the power output end R. It should be noted that when the battery cell 21 is charged, the battery cell 21 can be charged to a full charge voltage.

[0047] The airflow controller U1 is also configured to output a driving signal through a signal terminal of the airflow controller U1 when the electronic atomization device is inhaled.

[0048] The circuit also shows a microcontroller U2.

[0049] The first input / output terminal (shown as IO1 in the figure) of the microcontroller U2 is electrically connected between the resistor R3 and the resistor R4, and the resistor R3 and the resistor R4 are connected in series to form a voltage divider circuit, one end of the voltage divider circuit is grounded, and the other end of the voltage divider circuit is electrically connected to the first positive electrical connection terminal. Through the first input / output terminal, the microcontroller U2 can receive a voltage divider signal from the voltage divider circuit.

[0050] The second input / output terminal (shown as IO2 in the figure) of the microcontroller U2 is electrically connected to the signal terminal (shown as LED in the figure) of the airflow controller U1. Through the second input / output terminal, the microcontroller U2 can receive the driving signal output by the airflow controller U1.

[0051] The third input / output terminal (indicated by IO3 in the figure) of the microcontroller U2 is electrically connected to the power output terminal R of the airflow controller U1. Through the third input / output terminal, the microcontroller U2 can receive a voltage signal or a power signal output by the airflow controller U1.

[0052] The fourth input / output terminal (indicated by IO4-IO8 in the figure) of the microcontroller U2 is electrically connected to the display unit U3. The display unit U3 includes a display screen or an indicator light, preferably an LED digital tube.

[0053] The positive power supply pin (VDD in the figure) of the microcontroller U2 is electrically connected to the positive electrode (VBAT+ in the figure) of the battery cell 21. Through the positive power supply pin, the ADC module built into the microcontroller U2 can read the voltage signal of the positive electrode of the battery cell 21. The negative power supply pin (GND in the figure) of the microcontroller U2 is grounded.

[0054] In one example, the microcontroller U2 is configured to output a control signal through the fourth input / output terminal based on a signal received from at least one of the first input / output terminal, the second input / output terminal, the third input / output terminal, and the positive power supply pin to control the display operation of the display unit U3.

[0055] In a specific example, when the microcontroller U2 determines that the battery cell 21 is powered on through the signal received through the positive power supply pin, and determines that the airflow controller U1 is powered on through the signal received through the second input and output terminal (when the airflow controller U1 is powered on, the driving signal output by the signal end of the airflow controller U1 will be pulled up by 250mS), the microcontroller U2 outputs a signal through the fourth input and output terminal to control the display unit U3, for example, the digital tube is fully lit and flashes a preset number of times, for example, 6 times.

[0056] In a specific example, when the microcontroller U2 receives signals through the second input-output terminal and the third input-output terminal and determines that the electronic atomization device 100 is being inhaled normally (the level signal output by the power output terminal R of the airflow controller U1 is pulled high, and a high-level signal appears in the driving signal output by the signal terminal of the airflow controller U1), the microcontroller U2 outputs a signal through the fourth input-output terminal to control the display unit U3, such as a digital tube to display the remaining oil and power respectively.

[0057] The calculation of the remaining oil amount is specifically obtained through experimental testing. The aerosol-forming matrix stored in the liquid storage chamber of the electronic atomization device 100 can actually be inhaled for a period of time T总 (For example), during the use of the electronic atomization device 100, the microcontroller U2 determines the output time T of the output signal of the airflow controller U1 through the third input and output terminal. 用 , the remaining oil volume is calculated by the following formula: (T 总 -T 用 ) / T 总 *100%.

[0058] The remaining power is calculated, specifically, the microcontroller U2 reads the voltage value of the positive electrode of the battery cell 21 through the positive power supply pin, and calculates the remaining power by proportional conversion.

[0059] In a specific example, when the microcontroller U2 determines that the battery cell 21 is charged through the signals received by the first input-output terminal and the second input-output terminal (when the charging interface J1 is electrically connected to the external power supply, the signal received by the first input-output terminal is a high-level signal; when the battery cell 21 is charged normally, the drive signal output by the signal end of the airflow controller U1 is always pulled high), the microcontroller U2 outputs a signal through the fourth input-output terminal to control the display unit U3, such as a digital tube to display the power level of the battery cell 21.

[0060] In a specific example, when the microcontroller U2 receives signals through the second input and output terminals and the third input and output terminals and determines that the electronic atomization device 100 is over-inhaled (the signal output from the power output terminal R of the airflow controller U1 is pulled high for more than 10 seconds, and the driving signal output from the signal terminal of the airflow controller U1 will be pulled high twice, with a frequency of 2Hz), the microcontroller U2 outputs a signal through the fourth input and output terminal to control the display unit U3, for example, a digital tube displays preset text or numbers, such as 2 8s, and flashes a preset number of times, for example 3 times.

[0061] In a specific example, when the microcontroller U2 determines that the battery cell 21 is in an undervoltage state (the positive voltage of the battery cell 21 is lower than 3.2V, and the drive signal output by the signal end of the airflow controller U1 is pulled high 10 times) through the signal received by the positive power supply pin and the second input and output terminal, the controller U2 outputs a signal through the fourth input and output terminal to control the display unit U3, for example, the digital tube flashes a preset number of times, for example, 3 times.

[0062] In a specific example, when the microcontroller U2 receives a signal through the second input / output terminal and determines that a short circuit occurs in the circuit (the driving signal output by the signal terminal of the airflow controller U1 is pulled high for 2 seconds), the controller U2 outputs a signal through the fourth input / output terminal to control the display unit U3, for example, the digital tube is fully lit and flashes a preset number of times, for example, 3 times.

[0063] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. An electronic atomization device, characterized in that: include: a heating element for heating the aerosol-forming substrate to generate an aerosol; A battery cell, used to provide power to the heating element; An airflow controller, comprising a first electrical connection end, a second electrical connection end, a signal end and a power output end; the first electrical connection end is electrically connected to the charging interface, the second electrical connection end is electrically connected to the battery core, and the power output end is electrically connected to the heating element; a microcontroller connected to a signal terminal of the airflow controller and configured to receive a driving signal from the signal terminal; A display unit, electrically connected to the microcontroller; Wherein, the microcontroller is used to receive a level signal from at least one of the first electrical connection end and the power output end, and at the same time control the display unit to display the working status of the electronic atomization device or parameter information during operation based on the driving signal.

2. The electronic atomization device according to claim 1, characterized in that: The microcontroller is configured to obtain a voltage value through the first electrical connection terminal or the positive terminal of the battery cell, thereby controlling the display unit to display the power level of the battery cell.

3. The electronic atomization device according to claim 1, characterized in that: The microcontroller is configured to receive a high level signal from the power output terminal and calculate a duration, and control the display unit to display the liquid level of the electronic atomization device based on the duration.

4. The electronic atomization device according to claim 1, characterized in that: The first electrical connection end includes a first positive electrical connection end and a first negative electrical connection end, the first positive electrical connection end is electrically connected to the positive power supply electrode of the charging interface, and the first negative electrical connection end is grounded.

5. The electronic atomization device according to claim 4, characterized in that: A filter capacitor is provided between the first positive electrical connection terminal and the first negative electrical connection terminal.

6. The electronic atomization device according to claim 1, characterized in that: The second electrical connection terminal includes a second positive electrical connection terminal and a second negative electrical connection terminal, the second positive electrical connection terminal is electrically connected to the positive electrode of the battery cell and the microcontroller, and the second negative electrical connection terminal is electrically connected to the negative electrode of the battery cell and is grounded.

7. The electronic atomization device according to claim 6, characterized in that: It also includes a protection circuit module, which is electrically connected between the second negative electrical connection terminal and the negative electrode of the battery cell.

8. The electronic atomization device according to claim 1, characterized in that: It also includes a voltage divider circuit, one end of which is electrically connected to the first electrical connection end, the other end of which is grounded, and the voltage divider signal generated by the voltage divider circuit is output to the microcontroller.

9. The electronic atomization device according to claim 8, characterized in that: The voltage divider circuit includes a first resistor and a second resistor connected in series.

10. The electronic atomization device according to claim 1, characterized in that: The airflow controller is configured to form an electrical path between the first electrical connection end and the second electrical connection end, and an electrical break between the second electrical connection end and a power output end when it is detected that the electronic atomization device is not being inhaled during the charging of the battery cell; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is being inhaled during the charging of the battery cell; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is not being inhaled when the battery cell is not being charged; to form an electrical break between the first electrical connection end and the second electrical connection end, and an electrical path between the second electrical connection end and the power output end when it is detected that the electronic atomization device is not being inhaled when the battery cell is not being charged; 11. The electronic atomization device according to claim 1, characterized in that: The charging interface also includes a configuration channel, and the configuration channel is grounded through a second resistor.

12. The electronic atomization device according to claim 1, characterized in that: The microcontroller has a power supply pin, a first input-output terminal, a second input-output terminal, a third input-output terminal and a fourth input-output terminal; The power supply pin is electrically connected to the battery cell, the first input-output terminal is electrically connected to the first electrical connection terminal, the second input-output terminal is electrically connected to the signal terminal, the third input-output terminal is electrically connected to the output terminal; and the fourth input-output terminal is electrically connected to the display unit.

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