Electronic atomization equipment

Abstract

The utility model provides electronic atomization equipment. The electronic atomization equipment comprises a battery, a heater, a first switching circuit, a controller and a voltage detection circuit, the first end of the heater is connected with the output end of the battery, and the second end of the heater is grounded through the first switching circuit; the controller is connected with the battery and the control end of the first switching circuit so as to control the first switching circuit to be switched on and switched off in different time periods in each heating period of the heater; the voltage detection circuit is connected between the first end of the heater and the signal acquisition port of the controller, and is used for detecting the output voltage of the heater in the corresponding heating period when the first switching circuit is closed, and detecting the battery voltage in the corresponding heating period when the first switching circuit is disconnected. And the controller is used for controlling the signal acquisition port to acquire the battery voltage and the output voltage in the corresponding heating period. According to the invention, the signal acquisition port resources of the controller can be effectively saved.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and more particularly to an electronic atomization device. Background Technology

[0002] like Figure 1A As shown, in related technologies, the electronic atomizing device 10 includes a battery 11, a heater 12, a switching circuit 13, and a controller 14. The battery 11 is electrically connected to the heater 12 via the switching circuit 13, and the battery 11 is also electrically connected to the controller 14 to directly supply power to the controller 14. The controller 14 controls the switching circuit 13 to close or open, so that the battery 11 supplies power to the heater 12 when the switching circuit 13 is closed and stops supplying power to the heater 12 when the switching circuit 13 is open, thereby controlling the heater 12 to heat and atomize the atomizing liquid to form an aerosol for the user to inhale. During the heating control process, the controller 14 acquires the battery voltage Vbat from the power supply port of the controller 14 through its internally integrated voltage acquisition circuit 141, and acquires the output voltage Vout of the heater 12 through the signal acquisition port.

[0003] With the continuous development of electronic atomization devices, related circuits such as Bluetooth circuits or display circuits are gradually being applied to electronic atomization devices 10. During the implementation of this application, the inventors discovered that in order to make the controller 14 in the electronic atomization device 10 match the voltage levels of these related circuits, such as... Figure 1B As shown, related technologies typically place a voltage regulator 15 between the power supply port of the battery 11 and the controller 14 to supply power to the controller 14. However, since the output voltage Vcc of the voltage regulator 15 cannot reflect the change in the battery voltage Vbat, the voltage acquisition circuit 141 integrated inside the controller 14 cannot acquire the battery voltage Vbat from the power supply port of the controller 14. This requires a separate signal acquisition port of the controller 14 to acquire the battery voltage Vbat, which is not conducive to saving the resources of the controller 14. Utility Model Content

[0004] This application provides an electronic atomization device to solve the problem in related technologies where the need to separately occupy the signal acquisition port of the controller for battery voltage acquisition is detrimental to saving controller resources.

[0005] This application provides an electronic atomizing device, including a battery, a heater, a first switching circuit, a controller, and a voltage detection circuit. A first terminal of the heater is connected to the output terminal of the battery, and a second terminal of the heater is grounded through the first switching circuit. The controller is connected to the battery and the control terminal of the first switching circuit to control the first switching circuit to close and open in time intervals during each heating cycle of the heater. The voltage detection circuit is connected between the first terminal of the heater and the signal acquisition port of the controller. The voltage detection circuit is used to detect the output voltage of the heater during the corresponding heating cycle when the first switching circuit is closed, and to detect the battery voltage during the corresponding heating cycle when the first switching circuit is open. The controller is used to control the signal acquisition port to acquire the battery voltage and output voltage during the corresponding heating cycle.

[0006] In one embodiment, the voltage detection circuit includes a first resistor and a second resistor. The first end of the first resistor is connected to the first end of the heater, the second end of the first resistor is connected to the first end of the second resistor and the signal acquisition port, and the second end of the second resistor is grounded.

[0007] In one embodiment, the electronic atomizing device further includes a pressure sensor for detecting the user's usage status; the pressure sensor is connected to a controller to send a first detection signal to the controller when the user is detected in a puffing state, so that the controller controls the signal acquisition port to perform voltage acquisition and / or outputs PWM signals for each heating cycle to the control terminal of the first switching circuit.

[0008] In one embodiment, the first switching circuit includes a first transistor, a third resistor, and a fourth resistor. The first terminal of the first transistor is connected to the second terminal of the heater, the second terminal of the first transistor is grounded, the third resistor is connected between the controller and the control terminal of the first transistor, and the fourth resistor is connected between the control terminal and the second terminal of the first transistor.

[0009] In one embodiment, the electronic atomizing device further includes a second switching circuit and a driving circuit. The second switching circuit is connected between the output terminal of the battery and the first terminal of the heater. The driving circuit is connected between the air pressure sensor and the control terminal of the second switching circuit. The driving circuit is used to drive the second switching circuit to close when the air pressure sensor detects that the user is in a suction state, and to drive the second switching circuit to open when the air pressure sensor detects that the user is in a non-suction state.

[0010] In one embodiment, the second switching circuit includes a second transistor and a fifth resistor. The first terminal of the second transistor is connected to the output terminal of the battery, the second terminal of the second transistor is connected to the first terminal of the heater, and the fifth resistor is connected between the first terminal of the second transistor and the control terminal.

[0011] In one embodiment, the driving circuit includes a third transistor, a sixth resistor, and a seventh resistor. The first terminal of the third transistor is connected to the control terminal of the second switching circuit, the second terminal of the third transistor is grounded, the sixth resistor is connected between the pressure sensor and the control terminal of the third transistor, and the seventh resistor is connected between the control terminal and the second terminal of the third transistor.

[0012] In one embodiment, the electronic atomizing device further includes a voltage regulator, the input of which is connected to the output of the battery, and the output of which is connected to the controller and the pressure sensor to supply power to the controller and the pressure sensor.

[0013] In one embodiment, the output of the voltage regulator is connected to the power supply port of the pressure sensor via an eighth resistor and grounded via a first capacitor.

[0014] In one implementation, the voltage regulator is a low-dropout voltage regulator.

[0015] The advantages or beneficial effects of the above technical solution include at least the following: by connecting the first end of the heater to the output end of the battery, grounding the second end of the heater through the first switching circuit, and controlling the first switching circuit to close and open in time intervals during each heating cycle by the controller, and setting a voltage detection circuit between the first end of the heater and the signal acquisition end of the controller, the voltage detection circuit can detect the output voltage of the heater in the corresponding heating cycle when the first switching circuit is closed and transmit the output voltage to the signal acquisition port, and detect the battery voltage in the corresponding heating cycle when the first switching circuit is open and transmit the battery voltage to the signal acquisition port. In this way, the output voltage of the heater and the battery voltage can be transmitted to the same signal acquisition port in time intervals during each heating cycle. The controller can collect the output voltage of the heater and the battery voltage in each heating cycle by controlling the signal acquisition port, realizing time-division multiplexing of the signal acquisition port, which helps to save the signal acquisition port resources of the controller. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0017] Figure 1A The diagram shown is a structural schematic of an electronic atomization device based on related technologies.

[0018] Figure 1B The diagram shows a structural schematic of another electronic atomization device related to this technology.

[0019] Figure 2 The diagram shown is a structural schematic of an electronic atomizing device according to an embodiment of this application.

[0020] Figure 3 The diagram shown is a structural schematic of an electronic atomizing device according to another embodiment of this application.

[0021] Figure 4 The diagram shown is a timing diagram of an electronic atomizing device in an embodiment of this application. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] Figure 2 The diagram shown is a structural schematic of an electronic atomizing device according to an embodiment of this application.

[0024] like Figure 2 As shown, the electronic atomizing device 10 includes a battery 11, a heater 12, a first switching circuit 13A, a controller 14, and a voltage detection circuit 16. The first end of the heater 12 is connected to the output end of the battery 11, and the second end of the heater 12 is grounded through the first switching circuit 13A. The controller 14 is connected to the battery 11 and the control terminal of the first switching circuit 13A to control the first switching circuit 13A to close and open in stages during each heating cycle of the heater 12. The voltage detection circuit 16 is connected between the first end of the heater 12 and the signal acquisition port (not marked in the figure) of the controller 14. The output end of the battery 11 can be the anode of the battery 11, the first end of the heater 12 can be the anode of the heater 12, and the second end of the heater 12 can be the cathode of the heater 12. The heater 12 can be a heating wire. The controller 14 is connected to the battery 11 by connecting the power supply port of the controller 14 to the output end of the battery 11, so that the battery 11 supplies power to the controller 14.

[0025] The voltage detection circuit 16 is used to detect the output voltage of the heater 12 during the corresponding heating cycle when the first switching circuit 13A is closed, and to detect the battery voltage during the corresponding heating cycle when the first switching circuit 13A is open. The controller 14 is used to control the signal acquisition port to acquire the battery voltage and output voltage during the corresponding heating cycle. For example, as... Figure 2 and Figure 4As shown, during the first heating cycle T1, the controller 14 controls the signal acquisition port to acquire voltage data, which can acquire the battery voltage Vbat1 and the output voltage Vout1 of the heater 12 during the first heating cycle T1. It should be noted that... Figure 4 The diagram only shows the operating timing of the electronic atomizing device 10 during the first heating cycle T1 to the third heating cycle T3. The heating cycles of the electronic atomizing device 10 can be selected and adjusted according to actual needs, and this application does not impose any restrictions on this.

[0026] For example, the controller 14 controls the first switching circuit 13A to close and open in time intervals during each heating cycle of the heater 12. This includes: during each heating cycle, the controller 14 outputs a PWM (Pulse Width Modulation) signal corresponding to the cycle to the first switching circuit 13A to control the first switching circuit 13A to close and open in time intervals. Each PWM signal for each heating cycle includes an active level and an inactive level. The active level is the level that closes the first switching circuit 13A, and the inactive level is the level that opens the first switching circuit 13A. Both the active and inactive levels have a certain duration. The ratio between the duration of the active level and the cycle time of each heating cycle is the duty cycle of the PWM signal in the corresponding cycle. This duty cycle is used to control the effective heating time of the heater 12 within the corresponding heating cycle. Thus, by controlling the first switching circuit 13A to close and open in time intervals during each heating cycle, the effective heating time of the heater 12 within the corresponding cycle can be controlled, thereby controlling the heating effect of the heater 12 on the atomized liquid and achieving heating control.

[0027] The operation of the electronic atomizing device 10 includes the following steps: During each heating cycle, when the first switching circuit 13A receives an effective level of the PWM signal in the corresponding heating cycle, the first switching circuit 13A is closed for the duration of the effective level. The battery 11 supplies power to the heater 12 to make the heater 12 heat up. The voltage detection circuit 16 detects the output voltage of the heater 12 in the corresponding heating cycle (e.g., the output voltage Vouti of the i-th heating cycle) and transmits the output voltage to the signal acquisition port. The controller 14 controls the signal acquisition port to work, thereby acquiring the output voltage of the heater 12. When the first switching circuit 13A receives an invalid level of the PWM signal in the corresponding heating cycle, the first switching circuit 13A is open for the duration of the invalid level. The battery 11 is connected to the signal acquisition port of the controller 14 through the voltage detection circuit 16, so that the voltage detection circuit 16 detects the battery voltage in the corresponding heating cycle (e.g., the battery voltage Vbati of the i-th heating cycle) and transmits the battery voltage to the signal acquisition port. The controller 14 controls the signal acquisition port to work, thereby acquiring the battery voltage. In this way, the output voltage of the heater 12 and the battery voltage can be collected in different time periods using the same signal acquisition port of the controller 14, thus realizing time-division multiplexing of the signal acquisition port.

[0028] The above solution connects the first end of the heater 12 to the battery 11, grounds the second end of the heater 12 through the first switching circuit 13A, and controls the first switching circuit 13A to close and open in time intervals during each heating cycle through the controller 14. A voltage detection circuit 16 is set between the first end of the heater 12 and the signal acquisition port of the controller 14. This allows the voltage detection circuit 16 to detect the output voltage of the heater 12 in the corresponding heating cycle when the first switching circuit 13A is closed and transmit the output voltage to the signal acquisition port. Conversely, it can detect the battery voltage in the corresponding heating cycle when the first switching circuit 13A is open and transmit the battery voltage to the signal acquisition port. This allows the output voltage of the heater 12 and the battery voltage to be transmitted to the same signal acquisition port in time intervals during each heating cycle. The controller 14, by controlling this signal acquisition port, can acquire the output voltage of the heater 12 and the battery voltage in each heating cycle, achieving time-division multiplexing of the signal acquisition port and saving signal acquisition port resources of the controller 14.

[0029] In one implementation, such as Figure 2As shown, the voltage detection circuit 16 includes a first resistor R1 and a second resistor R2. The first end of the first resistor R1 is connected to the first end of the heater 12, and the second end of the first resistor R1 is connected to both the first end of the second resistor R2 and the signal acquisition port. The second end of the second resistor R2 is grounded. This structure allows the voltage detection circuit 16, composed of the first resistor R1 and the second resistor R2, to be a voltage divider circuit. When the first switch circuit 13A is closed, the voltage at the connection point C between the second end of the first resistor R1 and the first end of the second resistor R2 reflects the magnitude of the output voltage of the heater 12. When the first switch circuit 13A is open, the voltage at this connection point C reflects the magnitude of the battery voltage. Thus, the voltage detection circuit 16 can be used to detect the output voltage of the heater 12 and the battery voltage during each heating cycle.

[0030] In one implementation, such as Figure 3 As shown, the electronic atomizing device 10 also includes a pressure sensor 17, which detects the user's usage status. The pressure sensor 17 is connected to the controller 14 to send a first detection signal to the controller 14 when the user is detected in a puffing state, causing the controller 14 to control the signal acquisition port to perform voltage acquisition and / or output PWM signals for each heating cycle to the control terminal of the first switching circuit 13A.

[0031] Please refer to the following: Figure 4 The user's usage status includes a suction state and a non-suction state. The air pressure sensor 17 detects the user's usage status as follows: when the user performs a suction action, the air pressure sensor 17 will detect an air pressure signal. If the detected air pressure signal exceeds the air pressure threshold, the detection result is that the user is in a suction state; when the user does not perform a suction action, the air pressure signal detected by the air pressure sensor 17 does not exceed the air pressure threshold, and the detection result is that the user is in a non-suction state.

[0032] The above scheme, when the pressure sensor 17 detects that the user is in a suction state, sends a first detection signal to the controller 14 to automatically trigger the controller 14 to control the control signal acquisition port to perform voltage acquisition and / or output PWM signals for each heating cycle to the control terminal of the first switching circuit 13A. This enables automatic voltage acquisition and / or automatic control of the heater based on the user's suction state. This makes voltage acquisition and heating control more intelligent, and also prevents voltage acquisition and heating control when the user is not in a suction state, thus reducing the static power consumption of the controller 14.

[0033] In one implementation, such as Figure 2 and Figure 3As shown, the first switching circuit 13A includes a first transistor Q1, a third resistor R3 and a fourth resistor R4. The first terminal of the first transistor Q1 is connected to the second terminal of the heater 12, and the second terminal of the first transistor Q1 is grounded. The third resistor R3 is connected between the controller 14 and the control terminal of the first transistor Q1, and the fourth resistor R4 is connected between the control terminal and the second terminal of the first transistor Q1.

[0034] For example, please refer to the following: Figure 4 The operation of the first switching circuit 13A includes: during each heating cycle, the controller 14 outputs a corresponding PWM signal to the control electrode of the first transistor Q1 through the third resistor R3; when the control electrode of the first transistor Q1 receives an effective level of the PWM signal, the first transistor Q1 is turned on for the duration of the effective level, grounding the second terminal of the heater 12 so that the battery 11 supplies power to the heater 12; when the first transistor Q1 receives an invalid level of the PWM signal, the first transistor Q1 is turned off for the duration of the invalid level, disconnecting the electrical connection between the second terminal of the heater 12 and ground so that the battery 11 stops supplying power to the heater 12.

[0035] For example, the first transistor Q1 can be an NMOS transistor. When the first transistor Q1 is an NMOS transistor, its first electrode is the drain, its second electrode is the source, and the effective voltage level is high during each heating cycle, while the inactive voltage level is low. It should be noted that the first transistor Q1 can also be a PMOS transistor. The type of the first transistor Q1 can be selected and adjusted according to actual needs, and this embodiment does not limit this. Furthermore, when the first transistor Q1 is a PMOS transistor, the effective voltage level is low during each heating cycle, while the inactive voltage level is high.

[0036] In one implementation, such as Figure 3 As shown, the electronic atomizing device 10 also includes a second switching circuit 13B and a driving circuit 18. The second switching circuit 13B is connected between the output terminal of the battery 11 and the first terminal of the heater 12, and the driving circuit 18 is connected between the pressure sensor 17 and the control terminal of the second switching circuit 13B. The driving circuit 18 is used to drive the second switching circuit 13B to close when the pressure sensor 17 detects that the user is in a puffing state, and to drive the second switching circuit 13B to open when the pressure sensor 17 detects that the user is in a non-puffing state.

[0037] For example, when the pressure sensor 17 detects that the user is in a suction state, it sends a first detection signal to the drive circuit 18 to control the drive circuit 18 to close the second switch circuit 13B, so that the output terminal of the battery 11 is electrically connected to the first terminal of the heater 12; when the pressure sensor 17 detects that the user is not in a suction state, it sends a second detection signal to the drive circuit 18 to control the drive circuit 18 to open the second switch circuit 13B, so that the output terminal of the battery 11 is disconnected from the first terminal of the heater 12. The first detection signal is high-level, and the second detection signal is low-level.

[0038] Based on this, the output terminal of the battery 11 can be electrically connected to the first terminal of the heater 12 only when the user is in the inhalation state, so that the battery 11 can supply power to the outside. When the user is not in the inhalation state, the electrical connection between the output terminal of the battery 11 and the first terminal of the heater 12 can be disconnected, which helps to save the power of the battery 11 and extend the usage time of the electronic atomization device 10.

[0039] In one implementation, such as Figure 3 As shown, the second switching circuit 13B includes a second transistor Q2 and a fifth resistor R5. The first terminal of the second transistor Q2 is connected to the output terminal of the battery 11, and the second terminal of the second transistor Q2 is connected to the first terminal of the heater 12. The fifth resistor R5 is connected between the first terminal and the control terminal of the second transistor Q2. The driving circuit 18 includes a third transistor Q3, a sixth resistor R6, and a seventh resistor R7. The first terminal of the third transistor Q3 is connected to the control terminal of the second transistor Q2 (i.e., the control terminal of the second switching circuit 13B), and the second terminal of the third transistor Q3 is grounded. The sixth resistor R6 is connected between the pressure sensor 17 and the control terminal of the third transistor Q3, and the seventh resistor R7 is connected between the control terminal and the second terminal of the third transistor Q3.

[0040] For example, taking the second transistor Q2 as a PMOS transistor and the third transistor Q3 as an NMOS transistor, the driving circuit 18 driving the second switching circuit 13B will be described. When the air pressure sensor 17 detects that the user is in a suction state, it outputs a first detection signal (high level) to the control electrode of the third transistor Q3 to control the third transistor Q3 to conduct. The third transistor Q3 grounds the control electrode of the second transistor Q2, realizing the transmission of an effective level (low level) to the control electrode of the second transistor Q2 to control the second transistor Q2 to conduct, so that the output terminal of the battery 11 is electrically connected to the first terminal of the heater 12. When the air pressure sensor 17 detects that the user is in a non-suction state, it outputs a second detection signal (low level) to the control electrode of the third transistor Q3 to control the third transistor Q3 to turn off. The battery 11 outputs an invalid level (high level) to the control electrode of the second transistor Q2 through the fifth resistor R5 to control the second transistor Q2 to turn off, so that the output terminal of the battery 11 is disconnected from the first terminal of the heater 12. In this way, the drive circuit 18 can drive the second switch circuit 13B to close according to the user's suction state, and drive the second switch circuit 13B to open according to the user's non-suction state.

[0041] It should be noted that the types of the second transistor Q2 and the third transistor Q3 can be selected and adjusted according to actual needs, and this application does not impose any restrictions on this.

[0042] In one implementation, such as Figure 2 and Figure 3 As shown, the electronic atomizing device 10 also includes a voltage regulator 15. The input terminal of the voltage regulator 15 is connected to the output terminal of the battery 11, and the output terminal of the voltage regulator 15 is connected to the controller 14 and the air pressure sensor 17 respectively to supply power to the controller 14 and the air pressure sensor 17.

[0043] For example, the output terminal of voltage regulator 15 is connected to the power supply port (not marked in the figure) of controller 14 and the power supply port (not marked in the figure) of barometric pressure sensor 17, respectively, to provide the output voltage Vcc of voltage regulator 15 to controller 14 and barometric pressure sensor 17, respectively. The output terminal of voltage regulator 15 is connected to the power supply port of barometric pressure sensor 17 through an eighth resistor R8 and grounded through a first capacitor C1, which effectively filters out the output noise of voltage regulator 15 and helps ensure the stability of power supply.

[0044] Preferably, the regulator 15 can be a low-dropout regulator (LDO).

[0045] The above solution, by setting a voltage regulator 15 between the output terminal of the battery 11 and the power supply port of the controller 14, and between the battery 11 and the power supply port of the pressure sensor 17, allows the battery voltage to be regulated by the voltage regulator 15 before being supplied to the controller 14 and the pressure sensor 17, which helps to ensure the level matching between the controller 14 and the pressure sensor 17.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic atomizing device, characterized by, include: Battery; A heating element and a first switching circuit, wherein a first end of the heating element is connected to the output end of the battery, and a second end of the heating element is grounded through the first switching circuit; The controller is connected to the control terminal of the battery and the first switching circuit to control the first switching circuit to close and open in different time periods during each heating cycle of the heater. A voltage detection circuit is connected between the first end of the heater and the signal acquisition port of the controller. The voltage detection circuit is used to detect the output voltage of the heater in the corresponding heating cycle when the first switching circuit is closed, and to detect the battery voltage in the corresponding heating cycle when the first switching circuit is open. The controller is used to control the signal acquisition port to acquire the battery voltage and the output voltage in the corresponding heating cycle.

2. The electronic atomizing device of claim 1, wherein, The voltage detection circuit includes: A first resistor and a second resistor, wherein the first end of the first resistor is connected to the first end of the heater, the second end of the first resistor is connected to the first end of the second resistor and the signal acquisition port, and the second end of the second resistor is grounded.

3. The electronic atomizing device of claim 1, wherein, Also includes: A barometric pressure sensor is used to detect the user's usage status. The air pressure sensor is connected to the controller to send a first detection signal to the controller when the user is detected to be in a suction state, so that the controller controls the signal acquisition port to perform voltage acquisition and / or outputs PWM signals for each heating cycle to the control terminal of the first switching circuit.

4. The electronic atomizing device of claim 3, wherein, The first switching circuit includes: The first transistor has its first terminal connected to the second terminal of the heater, and its second terminal grounded. A third resistor and a fourth resistor, wherein the third resistor is connected between the controller and the control electrode of the first transistor, and the fourth resistor is connected between the control electrode and the second electrode of the first transistor.

5. The electronic atomizing device of claim 3, wherein, Also includes: The second switching circuit is connected between the output terminal of the battery and the first terminal of the heater; A driving circuit is connected between the air pressure sensor and the control terminal of the second switching circuit. The driving circuit is used to drive the second switching circuit to close when the air pressure sensor detects that the user is in a suction state, and to drive the second switching circuit to open when the air pressure sensor detects that the user is in a non-suction state.

6. The electronic atomizing device of claim 5, wherein, The second switching circuit includes: The second transistor and the fifth resistor are connected as follows: the first terminal of the second transistor is connected to the output terminal of the battery, the second terminal of the second transistor is connected to the first terminal of the heater, and the fifth resistor is connected between the first terminal of the second transistor and the control terminal.

7. The electronic atomizing device of claim 5, wherein, The driving circuit includes: The circuit comprises a third transistor, a sixth resistor, and a seventh resistor. The first terminal of the third transistor is connected to the control terminal of the second switching circuit, and the second terminal of the third transistor is grounded. The sixth resistor is connected between the pressure sensor and the control terminal of the third transistor, and the seventh resistor is connected between the control terminal and the second terminal of the third transistor.

8. The electronic atomizing device of claim 3, wherein, Also includes: A voltage regulator, the input of which is connected to the output of the battery, and the output of which is connected to the controller and the pressure sensor respectively, to supply power to the controller and the pressure sensor.

9. The electronic atomizing device according to claim 8, characterized in that, The output terminal of the voltage regulator is connected to the power supply port of the pressure sensor through an eighth resistor and grounded through a first capacitor.

10. The electronic atomizing device according to claim 8, characterized in that, The voltage regulator is a low-dropout voltage regulator.

Images