An electronic atomization device, a heating control method and apparatus thereof, and a storage medium

Abstract

This application provides an electronic atomizing device and its heating control method, apparatus, and storage medium. The electronic atomizing device includes 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 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 detects the output voltage of the heater during the corresponding heating cycle when the first switching circuit is closed, and detects the battery voltage during the corresponding heating cycle when the first switching circuit is open. The controller controls the signal acquisition port to acquire the battery voltage and output voltage during the corresponding heating cycle. This application can effectively save the signal acquisition port resources of the controller.

Description

Technical Field

[0001] This application relates to the field of electronic atomization technology, and in particular to an electronic atomization device and its heating control method, apparatus and storage medium. 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. Summary of the Invention

[0004] This application provides an electronic atomizing device and its heating control method, apparatus and storage medium to solve the problem in related technologies that the signal acquisition port, which requires separate use of controller resources for battery voltage acquisition, is not conducive to saving controller resources.

[0005] The first aspect of 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 various heating cycles 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] The second aspect of this application provides a heating control method applied to the electronic atomization device of the first aspect. The heating control method includes: acquiring the corresponding output voltage at the control signal acquisition port during the i-th heating cycle; determining the target duty cycle of the PWM signal during the (i+1)-th heating cycle based on the preset target output voltage and the output voltage of the i-th heating cycle; and outputting the corresponding PWM signal of the (i+1)-th heating cycle to the control terminal of the first switching circuit based on the target duty cycle of the PWM signal during the (i+1)-th heating cycle; where i ≥ 1 and i is an integer.

[0007] A third aspect of this application provides a heating control device applied to the electronic atomization device of the first aspect. The heating control device includes a control module, a determination module, and an output module. The control module is used to acquire the corresponding output voltage at the control signal acquisition port during the i-th heating cycle. The determination module is used to determine the target duty cycle of the PWM signal during the (i+1)-th heating cycle based on the preset target output voltage and the output voltage of the i-th heating cycle. The output module is used to output the corresponding PWM signal of the (i+1)-th heating cycle to the control terminal of the first switching circuit based on the target duty cycle of the PWM signal during the (i+1)-th heating cycle. i ≥ 1, and i is an integer.

[0008] The fourth aspect of this application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the heating control method of the second aspect described above.

[0009] 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

[0010] 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.

[0011] Figure 1A The diagram shown is a structural schematic of an electronic atomization device based on related technologies.

[0012] Figure 1B The diagram shows a structural schematic of another electronic atomization device related to this technology.

[0013] Figure 2 The diagram shown is a structural schematic of an electronic atomizing device according to an embodiment of this application.

[0014] Figure 3 The diagram shown is a structural schematic of an electronic atomizing device according to another embodiment of this application.

[0015] Figure 4 The diagram shown is a timing diagram of an electronic atomizing device in an embodiment of this application.

[0016] Figure 5 The diagram shown is a schematic flowchart of a heating control method according to an embodiment of this application.

[0017] Figure 6 The diagram shown is a schematic flowchart of a heating control method according to another embodiment of this application.

[0018] Figure 7The diagram shown is a structural block diagram of a heating device according to an embodiment of this application. Detailed Implementation

[0019] 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.

[0020] Figure 2 The diagram shown is a structural schematic of an electronic atomizing device according to an embodiment of this application.

[0021] 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.

[0022] 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 4 As 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] In one implementation, such as Figure 2 As 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.

[0027] 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.

[0028] Please refer to the following: Figure 4The 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.

[0029] 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.

[0030] In one implementation, such as Figure 2 and Figure 3 As 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] In one implementation, such as Figure 3As 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, 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Preferably, the regulator 15 can be a low-dropout regulator (LDO).

[0042] 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.

[0043] This application also provides a heating control method, which is applied to the electronic atomizing device 10 of any of the above embodiments. The executing entity of the heating control method can be the controller of the electronic atomizing device 10. It should be noted that since this heating control method is applied to the electronic atomizing device 10 of any of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here. The embodiments of the heating control method of this application will be described in detail below.

[0044] like Figure 5 As shown, the heating control method includes the following steps S110 to S130.

[0045] Step S110: During the i-th heating cycle, the control signal acquisition port acquires the corresponding output voltage.

[0046] Step S110 includes: during the duration of the effective level of the i-th heating cycle, the control signal acquisition port acquires the output voltage of the heater in the i-th heating cycle. For example, please refer to [link / reference]. Figure 3 and Figure 4 During the duration of the effective level of the first heating cycle T1, the control signal acquisition port acquires the output voltage Vout1 of the heater 12 in the first heating cycle.

[0047] Step S120: Based on the preset target output voltage and the output voltage of the i-th heating cycle, determine the target duty cycle of the PWM signal in the (i+1)-th heating cycle.

[0048] In step S120, the target duty cycle D of the PWM signal during the (i+1)th heating cycle is... i+1 The calculation method can be expressed by the following formula (1):

[0049]

[0050] Among them, V g Vout1 represents the preset target output voltage, and Vout1 represents the output voltage during the i-th heating cycle.

[0051] It should be noted that this application only uses the above formula (1) as an example to illustrate the target duty cycle D of the PWM signal in the (i+1)th heating cycle. i+1 This application is not limited to one calculation method. This calculation method can be selected and adjusted according to actual needs, as long as it is related to the preset target output voltage V. g It can be related to the output voltage of the i-th heating cycle.

[0052] Step S130: Based on the target duty cycle of the PWM signal in the (i+1)th heating cycle, output the corresponding PWM signal for the (i+1)th heating cycle to the control terminal of the first switching circuit.

[0053] For example, the above scheme is illustrated using i=1 as an example. Please refer to the above examples. Figure 3 and Figure 4 During the first heating cycle T1, the control signal acquisition port acquires the output voltage Vout1 of the first heating cycle T1. Based on the preset target output voltage Vg and the output voltage Vout1 of the first heating cycle T1, the target duty cycle D2 of the PWM signal during the second heating cycle T2 can be calculated. Based on the target duty cycle D2 of the second heating cycle T1, the PWM signal of the second heating cycle T2 is output to the control terminal of the first switching circuit 13A to control the effective closing time of the first switching circuit 13A during the second heating cycle T2. This controls the effective heating time of the heater 12 during the second heating cycle T2, thereby realizing the heating control of the atomized liquid by the heater 12.

[0054] In practical applications, such as Figure 1A As shown, during the process of battery 11 supplying power to heater 12, the charge of battery 11 gradually decreases as the number of heating cycles increases, and the output voltage Vout of heater 12 also decreases accordingly. In this case, related technologies typically set the duty cycle of the PWM signal in each heating cycle to a fixed value, causing the heating effect of heater 12 to gradually deteriorate as the number of heating cycles increases. For example, the heating temperature decreases, resulting in poor consistency in heating the atomized liquid by heater 12, thereby affecting the consistency of the atomized taste.

[0055] The above scheme, by controlling the signal acquisition port to acquire the corresponding output voltage Vouti during the i-th heating cycle, and based on the preset target output voltage V... g Based on the output voltage Vouti of the i-th heating cycle, determine the target duty cycle D of the PWM signal in the (i+1)-th heating cycle. i+1 Then, a PWM signal with a target duty cycle for the (i+1)th heating cycle is output to the control terminal of the first switching circuit 13A to control the effective heating time of the heater 12 in the (i+1)th heating cycle. This allows the effective heating time of the heater 12 to increase as the battery power decreases, which helps to ensure the consistency of the heater 12 in heating the atomized liquid, thereby ensuring the consistency of the atomized taste and improving the user experience.

[0056] In one implementation, please refer to the following: Figure 3 , Figure 4 and Figure 6 The heating control method further includes the following steps S210 to S230.

[0057] Step S210: During the i-th heating cycle, the control signal acquisition port acquires the corresponding battery voltage Vbati.

[0058] Step S210 includes: during the duration of the invalid level in the i-th heating cycle, the control signal acquisition port acquires the battery voltage Vbati of the i-th heating cycle. For example, during the duration of the invalid level in the first heating cycle T1, the control signal acquisition port acquires the battery voltage Vbat1 of the heater 12 in the first heating cycle.

[0059] Step S220: Compare the battery voltage Vbati of the i-th heating cycle with a preset first voltage threshold to determine whether the battery voltage Vbati of the i-th heating cycle is greater than the first voltage threshold. The first voltage threshold can be preset in the controller 14, and can be 3V.

[0060] Step S230: If the battery voltage Vbati in the i-th heating cycle is greater than the first voltage threshold, determine the target duty cycle D of the PWM signal in the (i+1)-th heating cycle. i+1 .

[0061] In this embodiment, the target duty cycle D of the PWM signal in the (i+1)th heating cycle is determined only if the battery voltage Vbati in the i-th heating cycle is greater than the first voltage threshold. i+1 This allows the target duty cycle D of the PWM signal to be adjusted during the (i+1)th heating cycle. i+1The determination is carried out under the condition that the battery 11 has sufficient power, which helps to improve the reliability of the target duty cycle determination, thereby improving the reliability of heating control.

[0062] In one implementation, please refer to the following: Figure 3 , Figure 4 and Figure 6 Before outputting the PWM signal for the first heating cycle to the control terminal of the first switching circuit 13A, i.e. before heating, the heating control method further includes the following steps S310 to S330.

[0063] Step S310: Upon receiving a wake-up signal, the control signal acquisition port acquires the initial voltage Vbat0 of battery 11; the wake-up signal is sent when the pressure sensor 17 detects that the user's usage state has changed from non-suction state to suction state.

[0064] For example, when the pressure sensor 17 detects that the user is in a non-suction state, the controller 14 receives a low level (second detection signal); when the pressure sensor 17 detects that the user is in a suction state, the controller receives a high level (first detection signal); when the user switches from a non-suction state to a suction state, the controller receives a wake-up signal that changes from a low level to a high level, waking up the controller 14. Simultaneously, the control electrode of the third transistor Q3 receives a valid level (high level) sent by the pressure sensor 17 through the sixth resistor R6, turning on the third transistor Q3 to ground the control electrode of the second transistor Q2, and the second transistor Q2 also turns on. The controller 14 has not yet output the PWM signal for the first heating cycle to the control terminal of the first transistor Q1, therefore the first transistor Q1 is in a cutoff state. The battery 11 supplies its initial voltage Vbat0 to the signal acquisition port of the controller 14 through the voltage detection circuit 16, and the controller 14 can acquire the initial voltage Vbat0 of the battery 11 by controlling the signal acquisition port.

[0065] Step S320: Based on the preset target output voltage V g Given the initial voltage Vbat0, determine the target duty cycle D1 of the PWM signal in the first PWM cycle. The calculation method for the target duty cycle D1 of the PWM signal in the first PWM cycle can be referred to formula (1) above, and will not be repeated here.

[0066] Step S320: Based on the target duty cycle D1 of the PWM signal in the first heating cycle, output the corresponding PWM signal for the first heating cycle to the control terminal of the first switching circuit 13A.

[0067] The above scheme, upon receiving a wake-up signal, controls the signal acquisition port to acquire the initial voltage Vbat0 of battery 11, and uses a preset target output voltage Vg Based on the initial voltage Vbat0 of battery 11, the target duty cycle D1 of the PWM signal in the first heating cycle is determined. Then, the corresponding PWM signal for the first heating cycle is output to the control terminal of the first switching circuit 13A to control the effective heating time of the heater 12 in the first heating cycle. This allows the effective heating time of the heater in the first heating cycle to be controlled by the initial voltage Vbat0 of battery 11, so that the heating control matches the performance of battery 11, which helps to improve the reliability of heating control.

[0068] In one implementation, please refer to the following: Figure 3 , Figure 4 and Figure 6 Before determining the target duty cycle of the PWM signal in the first heating cycle, i.e. before heating, the heating control method further includes the following steps S410 to S420.

[0069] Step S410: Compare the initial voltage Vbat0 with a preset second voltage threshold to determine whether the initial voltage Vbat0 is greater than the second voltage threshold. The second voltage threshold can be 3.3V.

[0070] Step S420: When the initial voltage Vbat0 is greater than the second voltage threshold, determine the target duty cycle D1 of the PWM signal in the first heating cycle.

[0071] In this embodiment, the target duty cycle D1 of the PWM signal in the first heating cycle is determined only when the initial voltage Vbat0 is greater than the second voltage threshold. This ensures that the determination of the target duty cycle D1 of the PWM signal in the first heating cycle is performed under the condition that the initial charge of the battery 11 is relatively sufficient, which helps to improve the reliability of the target duty cycle determination and thus improve the reliability of the heating control.

[0072] In one implementation, please refer to the following: Figure 3 , Figure 4 and Figure 6The electronic atomizing device 10 also includes a display component (not shown in the figures) connected to the controller 14. The heating control method further includes: when the battery voltage Vbati in the i-th heating cycle is less than or equal to a first voltage threshold, or when the initial voltage Vbat0 is less than or equal to a second voltage threshold, or when the air pressure sensor 17 detects that the user is in a non-inhalation state, the controller 14 enters a sleep state and controls the display component to display a low battery status; the first voltage threshold is less than the second voltage threshold. Specifically, when the controller 14 enters a sleep state, it stops detecting the battery voltage and the output voltage of the heater 12 in each heating cycle through the voltage detection circuit 16, and stops outputting PWM signals for each heating cycle to the first switching circuit 13A. The heater 12 stops heating the atomizing liquid. Based on this, the static power consumption of the controller 14 can be reduced and the display component can be controlled to display a low battery status indication.

[0073] Figure 7 The diagram shown is a structural block diagram of a heating control device provided in an embodiment of this application.

[0074] Please refer to the following: Figure 3 and Figure 7 The heating control device 30 is applied to the electronic atomizing device 10 in any of the above embodiments. The heating control device 30 includes a control module 31, a determination module 32, and an output module 33. The control module 31 is used to acquire the corresponding output voltage Vouti through the control signal acquisition port during the i-th heating cycle. The determination module 32 is used to determine the output voltage V based on a preset target output voltage Vouti. g Based on the output voltage Vouti of the i-th heating cycle, determine the target duty cycle D of the PWM signal in the (i+1)-th heating cycle. i+1 Output module 33 is used to determine the target duty cycle D of the PWM signal during the (i+1)th heating cycle. i+1 The PWM signal corresponding to the (i+1)th heating cycle is output to the control terminal of the first switching circuit 13A; i≥1, and i is an integer.

[0075] It should be noted that the heating control method of any of the above embodiments can be implemented based on the heating control device 30 provided in this embodiment. Those skilled in the art can deduce other technical solutions in the heating control device 30 based on the description of other technical solutions in the heating control method above. For the sake of brevity, the specific working process of the heating control device described in this embodiment can be referred to the corresponding process of the corresponding embodiment of the heating control method above, which will not be repeated here.

[0076] In the above scheme, the control module 31 acquires the corresponding output voltage Vouti through the control signal acquisition port during the i-th heating cycle, which enables the determination module 32 to determine the target output voltage V based on the preset target output voltage V.g Based on the output voltage Vouti of the i-th heating cycle, determine the target duty cycle D of the PWM signal in the (i+1)-th heating cycle. i+1 Thus, the output module 33 can output a target duty cycle D to the control terminal of the first switching circuit 13A. i+1 The PWM signal of the (i+1)th heating cycle is used to control the effective heating time of the heater 12 in the (i+1)th heating cycle. This allows the effective heating time of the heater 12 to increase as the battery power of the battery 11 decreases, which helps to ensure the consistency of heating of the atomized liquid by the heater 12, thereby ensuring the consistency of the atomized taste and improving the user experience.

[0077] This application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method provided in this application.

[0078] Optionally, the computationally readable storage medium includes read-only memory and random access memory, and may also include non-volatile random access memory. The memory may be volatile or non-volatile, or may include both. Non-volatile memory may include read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which serves as an external cache. Many forms of RAM are available by way of example, but not limitation. Examples include Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

[0079] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another.

[0080] 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.

[0081] 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.

[0082] 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 in that, 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 according to claim 1, characterized in that, 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 according to claim 1, characterized in that, 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 according to claim 3, characterized in that, 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 according to claim 3, characterized in that, 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 according to claim 5, characterized in that, 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. 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 transistor, 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.

7. The electronic atomizing device according to claim 3, characterized in that, 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.

8. A heating control method, characterized in that, The heating control method, applied to the electronic atomizing device according to any one of claims 1 to 7, comprises: During the i-th heating cycle, the signal acquisition port is controlled to acquire the corresponding output voltage; Based on the preset target output voltage and the output voltage of the i-th heating cycle, the target duty cycle of the PWM signal in the (i+1)-th heating cycle is determined; Based on the target duty cycle of the PWM signal in the (i+1)th heating cycle, the corresponding PWM signal for the (i+1)th heating cycle is output to the control terminal of the first switching circuit; i≥1, and i is an integer.

9. The heating control method according to claim 8, characterized in that, Also includes: During the i-th heating cycle, the signal acquisition port is controlled to acquire the corresponding battery voltage; The battery voltage of the i-th heating cycle is compared with a preset first voltage threshold to determine whether the battery voltage of the i-th heating cycle is greater than the first voltage threshold. If the battery voltage in the i-th heating cycle is greater than the first voltage threshold, the target duty cycle of the PWM signal in the (i+1)-th heating cycle is determined.

10. The control method according to claim 8, characterized in that, Before outputting the PWM signal for the first heating cycle to the control terminal of the first switching circuit, the heating control method further includes: Upon receiving a wake-up signal, the system controls the signal acquisition port to acquire the initial voltage of the battery; the wake-up signal is sent when the pressure sensor detects that the user's usage state has changed from a non-suction state to a suction state. Based on the preset target output voltage and the initial voltage, the target duty cycle of the PWM signal in the first heating cycle is determined; Based on the target duty cycle of the PWM signal during the first heating cycle, the corresponding PWM signal for the first heating cycle is output to the control terminal of the first switching circuit.

11. The heating control method according to claim 10, characterized in that, Before determining the target duty cycle of the PWM signal during the first heating cycle, the heating control method further includes: The initial voltage is compared with a preset second voltage threshold to determine whether the initial voltage is greater than the second voltage threshold; If the initial voltage is greater than the second voltage threshold, the target duty cycle of the PWM signal during the first heating cycle is determined.

12. The heating control method according to claim 11, characterized in that, The electronic atomizing device further includes a display component connected to the controller, and the heating control method further includes: If the battery voltage in the i-th heating cycle is less than or equal to a first voltage threshold, or if the initial voltage is less than or equal to a second voltage threshold, or if the air pressure sensor detects that the user is in a non-suction state, the controller enters a sleep state and controls the display component to display a low battery indicator; the first voltage threshold is less than the second voltage threshold.

13. A heating control device, characterized in that, The heating control device, applicable to any one of claims 1 to 7, comprises: The control module is used to control the signal acquisition port to acquire the corresponding output voltage during the i-th heating cycle; The determination module is used to determine the target duty cycle of the PWM signal in the (i+1)th heating cycle based on the preset target output voltage and the output voltage of the i-th heating cycle. The output module is used to output the corresponding PWM signal for the (i+1)th heating cycle to the control terminal of the first switching circuit based on the target duty cycle of the PWM signal in the (i+1)th heating cycle; i≥1, and i is an integer.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the heating control method as described in any one of claims 8 to 12.

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