Electronic atomization device and control method thereof

Abstract

The invention relates to an electronic atomization device and a control method thereof. The electronic atomization device comprises a control module, a power supply switch module, a power supply circuit and at least two heating assemblies. The heating components are connected in series; the control module is used for controlling the power supply state of each heating component through the power supply switch module and controlling the output voltage of the power supply circuit according to the power supply state of each heating component; the output voltage is used for supplying power to the heating assemblies in the power supply state. Therefore, the power supply voltage of the heating assembly in the power supply state can reach the target power supply voltage, and then heating is performed at the target heating power, so that the aerosol generating matrix in the corresponding atomization cavity generates aerosol with reliable quality. Therefore, the atomization effect of the aerosol generating matrixes in the multiple atomization cavities can be improved, and the atomization capacity of the electronic atomization device is remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic atomization devices, and particularly to an electronic atomization device and a control method thereof. Background Art

[0002] An electronic atomization device generally includes an aerosol atomization chamber and a heating device, where the heating device is used to heat the atomization chamber to heat and atomize the aerosol generating matrix in the atomization chamber.

[0003] With the increasing user demand, an electronic atomization device is formed with multiple aerosol atomization chambers, and multiple heating elements need to be provided to heat the multiple atomization chambers. Currently, a method of connecting multiple heating elements in parallel is mostly adopted, and a single battery cell supplies power to each of the parallel-connected heating elements. However, it is difficult to ensure that the voltage of each heating element is the target supply voltage, and thus it is difficult to ensure the accuracy of the output power of each heating element, thereby affecting the atomization effect of the aerosol generating matrix. Summary of the Invention

[0004] Based on this, it is necessary to provide an electronic atomization device and a control method thereof that can improve the atomization effect of the aerosol generating matrix in multiple atomization chambers.

[0005] In a first aspect, this application provides an electronic atomization device, including:

[0006] A power supply switch module, a power supply circuit, and:

[0007] At least two heating components, which are connected in series;

[0008] A control module, configured to control the power supply state of each of the heating components through the power supply switch module,

[0009] and configured to control the output voltage of the power supply circuit according to the power supply state of each of the heating components, and the output voltage is used to supply power to each of the heating components in the power supply state.

[0010] In one embodiment, the power supply circuit includes an energy storage element and a voltage conversion module, and the voltage conversion module is configured to boost the electrical energy provided by the energy storage element to the output voltage according to the control of the control module.

[0011] In one embodiment, the power supply circuit further includes: a voltage regulation switch module, and the voltage regulation switch module is configured to adjust the output voltage output by the voltage conversion module according to the control of the control module, and the adjusted output voltage is used to supply power to each of the heating components in the power supply state.

[0012] In one embodiment, the electronic atomization device further includes a resistance sampling circuit, and the control module is further configured to control the resistance sampling circuit to detect the resistance value of the heating component;

[0013] The control module is further configured to control the output voltage of the power supply circuit according to the resistance value of the heating component in the powered state.

[0014] In one embodiment, the resistance sampling circuit includes a sampling resistor, a detection switch unit, and a current limiting resistor;

[0015] The control module is configured to control the detection switch unit to conduct, so that the sampling resistor divides the voltage with each of the heating components in the powered state; the control module is further configured to receive the voltage parameter after the sampling resistor divides the voltage through the current limiting resistor, so as to determine the resistance value of the heating component in the powered state according to the voltage parameter.

[0016] In one embodiment, the power supply switch module includes a plurality of power supply switch units, and the number of the power supply switch units is equal to the number of the heating components; the control module is configured to control the power supply states of the heating components through the power supply switch units.

[0017] In one embodiment, the electronic atomization device further includes a diode, the cathode of the diode is connected to the head end after the heating components are connected in series, and the anode of the diode is grounded.

[0018] In a second aspect, the present application further provides a control method for an electronic atomization device, which is executed by the control module in the above-mentioned electronic atomization device, and the method includes:

[0019] Obtain a heating control instruction;

[0020] Control the power supply switch module according to the heating control instruction to control the power supply states of the heating components;

[0021] Control the power supply circuit to output a corresponding output voltage according to the power supply states of the heating components, and the output voltage is used to supply power to the heating components in the powered state.

[0022] In one embodiment, the electronic atomization device further includes a resistance sampling circuit, and controlling the power supply circuit to output a corresponding output voltage according to the power supply states of the heating components includes:

[0023] Control the detection switch unit of the resistance sampling circuit to conduct, so as to receive a voltage parameter through the current limiting resistor of the resistance sampling circuit, and the voltage parameter is the voltage parameter after the sampling resistor divides the voltage with each of the heating components in the powered state;

[0024] Determine the resistance values of the heating components in the power supply state according to the voltage parameters;

[0025] Control the power supply circuit to output a corresponding output voltage according to the resistance values of the heating components in the power supply state.

[0026] In one embodiment, the power supply switch module includes a plurality of power supply switch units, and controlling the power supply switch module according to the heating control instruction to control the power supply states of the heating components includes:

[0027] Control each power supply switch unit according to the heating control instruction to control the power supply states of the heating components.

[0028] In a third aspect, the present application further provides a control device for an electronic atomization device. The device includes:

[0029] An instruction acquisition module, configured to acquire a heating control instruction;

[0030] A state control module, configured to control the power supply switch module according to the heating control instruction to control the power supply states of the heating components;

[0031] A power supply control module, configured to control the power supply circuit to output a corresponding output voltage according to the power supply states of the heating components, and the output voltage is used to supply power to the heating components in the power supply state.

[0032] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0033] Acquire a heating control instruction;

[0034] Control the power supply switch module according to the heating control instruction to control the power supply states of the heating components;

[0035] Control the power supply circuit to output a corresponding output voltage according to the power supply states of the heating components, and the output voltage is used to supply power to the heating components in the power supply state.

[0036] The above-mentioned electronic atomization device, its control method, device, and computer-readable storage medium can enable each heating component to correspond to heating an aerosol atomization chamber. The control module controls one or more heating components to be in a powered state through a power supply switch module according to actual needs, and controls the power supply circuit to output a voltage corresponding to the resistance value of each heating component in the powered state, so that the supply voltage of the heating component in the powered state can reach the target supply voltage, and then heat at the target heating power, so that the aerosol generation matrix in its corresponding atomization chamber can generate reliable-quality aerosol. This can improve the atomization effect of the aerosol generation matrix in multiple atomization chambers and significantly improve the atomization ability of the electronic atomization device. Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 It is a block diagram of an electronic atomization device in an embodiment;

[0039] Figure 2 It is a block diagram of an electronic atomization device in another embodiment;

[0040] Figure 3 It is a schematic circuit diagram of a voltage conversion module in an embodiment;

[0041] Figure 4 It is a block diagram of an electronic atomization device in yet another embodiment;

[0042] Figure 5 It is a block diagram of an electronic atomization device in yet another embodiment;

[0043] Figure 6 It is a block diagram of an electronic atomization device in yet another embodiment;

[0044] Figure 7 It is a schematic circuit diagram of an electronic atomization device in an embodiment;

[0045] Figure 8 It is a schematic flowchart of the control method of an electronic atomization device in an embodiment;

[0046] Figure 9 It is a block diagram of the control device of an electronic atomization device in an embodiment. Detailed Embodiments

[0047] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant accompanying drawings. Embodiments of the present application are shown in the drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0049] It can be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, the first resistor may be referred to as the second resistor, and similarly, the second resistor may be referred to as the first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0050] It can be understood that in the following embodiments, "connection", if there is a transmission of electrical signals or data between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0051] It can be understood that "at least one" means one or more, and "a plurality" means two or more. "At least a part of an element" means a part or all of the element.

[0052] As used herein, the singular forms "a", "an", and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising", "including", or "having", etc. specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0053] As described in the background art, when an electronic atomization device is formed with multiple atomization chambers, multiple heating elements need to be provided to heat the multiple atomization chambers. In the related art, for the heating requirements of multiple atomization chambers, a method of connecting multiple heating elements in parallel is adopted, and a single battery cell supplies power to each of the heating elements after parallel connection to make the heating elements work. In order to ensure the power of each heating element, a Pulse Width Modulation (PWM) unit is respectively provided for each heating element, and the duty cycle of the signal of the PWM unit corresponding to each heating element is adjusted to adapt to the change of the battery cell voltage (during the operation of the battery cell, the voltage will also change with the change of the power). However, since the resistance values and output powers of the heating elements are different from each other, the duty cycles of the PWM signals corresponding to the heating elements are also different, and finally the loaded voltages in each time period are also different. In this way, it is very difficult to calculate the accurate duty cycle of the PWM signal corresponding to each heating element, so it is difficult to ensure that the supply voltage obtained by each heating element reaches the predetermined voltage value, and further difficult to ensure the accuracy of the output power of each heating element, thus affecting the atomization effect of the aerosol-forming substrate.

[0054] Based on the above technical problems, the present application provides an electronic atomization device, including multiple heating components, which can heat multiple aerosol atomization chambers simultaneously, so that aerosols can be generated simultaneously in the multiple atomization chambers, thereby improving the atomization ability of the electronic atomization device. Moreover, by connecting the multiple heating components in series, and the control module controls whether each heating component is in the power supply state or the non-power supply state through the power supply switch module, and further controls the output voltage of the power supply circuit to be corresponding to the resistance value of each heating component in the power supply state, so as to ensure that this voltage can make each heating component output at a constant power, thereby improving the atomization effect of the aerosol-forming substrate.

[0055] In one embodiment, an electronic atomization device is provided, as Figure 1 shown, the electronic atomization device includes a control module 110, a power supply switch module 120, a power supply circuit 130, and at least two heating components 140. Among them, each heating component 140 is connected in series. The control module 110 is used to control the power supply state of each heating component 140 through the power supply switch module 120. The control module 110 is further used to control the output voltage of the power supply circuit 130 according to the power supply state of each heating component 140, and the output voltage is used to supply power to each heating component 140 in the power supply state.

[0056] It should be noted that Figure 1 in the shown embodiment, only the number of the heating components 140 is taken as an example of three. In actual implementation, the number of the heating components 140 can be set according to actual needs. For the convenience of explanation, the following will take the number of the heating components 140 as three as an example for description.

[0057] Specifically, the head end after the serial connection of each heating component 140 is connected to the power supply circuit 130, and the tail end after the serial connection of each heating component 140 is grounded. The control module 110 is respectively connected to the power supply switch module 120 and the power supply circuit 130. The power supply switch module 120 is respectively connected to each heating component 140. The control module 110 is used to respectively control the power supply states of each heating component 140 through the power supply switch module 120, and control the output voltage of the power supply circuit 130 according to the power supply states of each heating component 140 to supply power to each heating component 140 in the power supply state.

[0058] It can be understood that the heating component 140 in the power supply state works and generates heat, and the heating component 140 in the non-power supply state does not generate heat. Still taking the Figure 1 illustrated embodiment as an example, the control module 110 can control the three heating components 140 to be in the power supply state simultaneously, or can make the three heating components 140 all in the non-power supply state, or can also make one or two of the three heating components 140 in the power supply state.

[0059] In actual implementation, the control module 110 is further used to receive a heating control instruction, and the heating control instruction is used to indicate which one or which several heating components 140 need to generate heat. The control module 110 controls the corresponding heating component 140 to be in the power supply state according to the received heating instruction. The manner in which the control module 110 receives the heating control instruction does not need to be limited. For example, the control module 110 is connected to an input circuit and receives the heating control instruction issued by the user through the input circuit. The input circuit can include a button, a touch screen, etc.

[0060] The type of each heating component 140 can be selected according to actual needs. For example, a heating element with a very small TCR (temperature coefficient of resistance) is selected so that during the process of the heating component 140 generating heat in the power supply state, the resistance value changes very little with temperature, so that the heating power is more stable.

[0061] After receiving the heating control instruction, the control module 110 calculates according to the resistance value and the target heating power of the heating component 140 in the power supply state to determine the output voltage of the power supply circuit 130. In some embodiments, the target heating power of each heating component 140 is a fixed value; in other embodiments, the heating control instruction is further used to indicate the target heating power of the heating component 140 that needs to generate heat.

[0062] It can be understood that through series connection, the ratio of the target heating power of each heating component 140 corresponds to the ratio of the resistance values of each heating component 140. Therefore, as long as the output voltage of the power supply circuit 130 is accurately controlled, the power of each heating component 140 can be ensured to be the target heating power and a constant power output can be maintained.

[0063] For the above-mentioned electronic atomization device, the control module 110 controls one or more heating components 140 to be in a powered state through the power supply switch module 120 according to actual needs, and controls the power supply circuit 130 to output a voltage corresponding to the resistance value of each heating component 140 in the powered state, so that the power supply voltage of the heating component 140 in the powered state can reach the target power supply voltage, and then heat at the target heating power, so that the aerosol generation matrix in the corresponding atomization chamber can generate aerosol with reliable quality. Thereby, the atomization effect of the aerosol generation matrix in multiple atomization chambers can be improved, and the atomization ability of the electronic atomization device can be significantly improved.

[0064] In one embodiment, as Figure 2 shown, the power supply circuit 130 may include an energy storage element 1301 and a voltage conversion module 1302. The voltage conversion module 1302 is used to boost the electric energy provided by the energy storage element 1301 to the output voltage according to the control of the control module 110.

[0065] Specifically, the input end of the voltage conversion module 1302 may be connected to the energy storage element 1301, the output end of the voltage conversion module 1302 is connected to the head end after the heating components 140 are connected in series, and the controlled end of the voltage conversion module 1302 is connected to the control module 110.

[0066] Among them, the voltage conversion module 1302 may be a boost module or a buck module, and its type can be determined specifically according to the actual situation, for example, according to the power supply parameters of the energy storage element 1301, the resistance value of each heating component 140, and the target heating power. Exemplarily, the energy storage element 1301 is a single battery cell, and the power supply voltage of the single battery cell is usually between 3.0V and 4V, and the power supply voltage is low and unstable. At this time, the voltage conversion module 1302 can be selected as a boost module. The output of the boost module can be a real-time adjustable voltage to adjust the output voltage according to the resistance value of each heating component 140 in the powered state, and its specific structure can be set according to actual needs.

[0067] In one embodiment, as Figure 3As shown, the voltage conversion module 1302 includes a boost chip U1 and corresponding peripheral circuits. Exemplarily, the voltage conversion module 1302 includes a boost chip U1 of model TPS61022. The EN pin of the boost chip U1 is connected to the control module 110 through a resistor R15, and the EN pin is also connected to the positive electrode (B+) of the battery cell through a resistor R19. The VIN pin is connected to the positive electrode of the battery cell, the GND pin is grounded, and a capacitor C4 and a capacitor C7 are connected between the VIN pin and the GND pin. The SW pin is connected to the VIN pin through an inductor L1. The MODE pin is grounded through a resistor R17. The OUT pin is grounded through capacitors C8, C9, C10, and C11, and the OUT pin is used to output the output voltage V_OUT. The OUT pin is grounded through resistors R12, R16, and R20 in sequence, a capacitor C12 is connected in parallel across the resistor R16, and the common node between the resistor R16 and the resistor R20 is connected to the FB pin of the boost chip U1.

[0068] Compared with the method of supplying power with a single battery cell, the accuracy and stability of the output voltage of the voltage conversion module 1302 can be significantly improved, thereby improving the stability of the voltage provided to the heating component 140, ensuring that the heating power of the heating component 140 is constant, and further improving the atomization effect of the aerosol generation matrix.

[0069] In one embodiment, as Figure 4 shown, the power supply circuit 130 further includes a voltage regulating switch module 1303. The voltage regulating switch module 1303 is used to adjust the output voltage of the voltage conversion module output 1302 according to the control of the control module 110, and the adjusted output voltage is used to supply power to each heating component 140 in the power supply state.

[0070] Specifically, the voltage regulating switch module 1303 can be disposed between the output end of the voltage conversion module 1302 and the head end after being connected in series with each heating component 140, and the controlled end of the voltage regulating switch module 1303 is connected to the control module 110. The output of the voltage conversion module 1302 can be a real-time adjustable voltage or a constant voltage.

[0071] In this embodiment, the voltage of the energy storage element 1301 can be increased by using the voltage conversion module 1302 to keep the output voltage constant; the control module 110 outputs a PWM signal to the voltage regulating switch module 1303, and the voltage regulating switch module 1303 conducts and disconnects according to the received PWM signal to convert the voltage output by the voltage conversion module 1302 into a more accurate power supply voltage to ensure the accuracy of the power supply voltage of each heating component 140 in the power supply state, and further improve the accuracy of the heating power of each heating component 140.

[0072] In this embodiment, by setting the voltage regulating switch module 1303, the accuracy of the output voltage provided to the heating component 140 can be improved, and the response speed of the voltage regulating switch module 1303 is very fast, which can quickly and accurately adjust the voltage, so that the heating power of each heating component 140 in the power supply state can be quickly adjusted, thereby maintaining a stable heating power, and further ensuring the consistency of the atomization effect of the aerosol generation matrix.

[0073] Compared with the related art, in which each heating element is connected in parallel and the voltage of each heating element is adjusted by PWM respectively, in this embodiment, only the duty cycle of a group of PWM signals needs to be determined, and the accuracy of the duty cycle is higher. Finally, the accuracy of the heating power of each heating component 140 is higher, and the determination method of the duty cycle is simpler and easier to implement.

[0074] Among them, the structures of the control module 110 and the voltage regulating switch module 1303 can be set according to the actual situation. Exemplarily, as Figure 7 shown, the control module 110 may include a controller 1101. The controller 1101 may be a control chip U2, and the control chip U2 may be a microcontroller unit (MCU) chip.

[0075] The voltage regulating switch module 1303 may include a switching transistor Q1, a resistor R1, and a resistor R2. The resistor R1 is connected between the controlled terminal and the first terminal of the switching transistor Q1. The first terminal of the switching transistor Q1 is connected to the output terminal of the voltage conversion module 1302. The second terminal of the switching transistor Q1 is connected to the head end of each heating component 140 connected in series. The controlled terminal of the switching transistor Q1 is connected to the controller 1101 through the resistor R2.

[0076] Specifically, the controlled terminal of the switching transistor Q1 receives the PWM signal output by the controller 1101 through the resistor R2, and the switching transistor Q1 is turned on or off according to the PWM signal. The situation where the switching transistor Q1 is turned on or off according to the PWM signal needs to be determined in combination with the type of the switching transistor Q1. Exemplarily, the switching transistor Q1 of the voltage regulating switch module 1303 is turned on in the high-level stage of the PWM signal and turned off in the low-level stage of the PWM signal.

[0077] By adjusting the duty cycle of the PWM signal, the on-time and off-time of the switching transistor Q1 can be adjusted, so as to adjust the equivalent supply voltage input to the head end of each heating component 140 connected in series, and further adjust the equivalent supply voltage of the heating component 140 in the power supply state, thereby realizing the adjustment of the heating power of the heating component 140 in the power supply state.

[0078] It should be noted that although the TCR of each heating component 140 is very small, in the scenario where the heating power of the heating component 140 needs to be precise and constant, the change in the resistance value of the heating component 140 with temperature cannot be ignored.

[0079] Based on this, in one embodiment, as Figure 5 shown, the electronic atomization device further includes a resistance sampling circuit 150, and the control module 110 is further configured to control the resistance sampling circuit 150 to detect the resistance value of the heating component 140. The control module 110 is further configured to control the output voltage of the power supply circuit 130 according to the resistance value of the heating component 150 in the powered state.

[0080] For the sake of convenience of description, Figure 5 in the illustrated embodiment, there are three heating components, which are respectively denoted as heating component 141, heating component 142, and heating component 143. The resistance sampling circuit 150 is connected to the control module 110 and is connected to the head end after the heating components are connected in series. The resistance sampling circuit 150 is used to detect the resistance value of the heating component and transmit it to the control module 110.

[0081] Specifically, when it is necessary to detect the total resistance value of all heating components, as long as all heating components are in the powered state, the resistance value of each heating component can be detected through the resistance sampling circuit 150. When it is necessary to detect the resistance value of a certain heating component, as long as the heating component is in the powered state and the remaining heating components are in the non-powered state, the resistance value of each heating component can be detected through the resistance sampling circuit 150. Exemplarily, when it is necessary to detect the resistance value of the heating component 141, the control module 110 can control the heating component 141 to be in the powered state through the power supply switch module 120, control the heating component 142 and the heating component 143 to be in the non-powered state, and then determine the resistance value of the heating component 141 according to the parameter value detected by the resistance sampling circuit 150.

[0082] Assume that only the heating component 141 needs to generate heat. The control module 110 first controls the heating component 141 to be in the powered state, controls the heating component 142 and the heating component 143 to be in the non-powered state, and then uses the resistance sampling circuit 150 to detect the resistance value of the heating component 141. Then, according to the resistance value of the heating component 141 and the magnitude of the voltage output by the voltage conversion module 1302, the duty cycle of the PWM signal output to the voltage regulation switch module 1303 is determined, and the PWM signal is output to the voltage regulation switch module 1303 to adjust the magnitude of the output voltage output to the heating component 141, so that the heating power of the heating component 141 is the target heating power.

[0083] Further, the control module 110 can detect the resistance value of the heating component 141 once in each cycle of the PWM signal by using the resistance sampling circuit 150, and then adjust the duty cycle of the PWM signal in the next cycle. Assume that the voltage regulating switch module 1303 is turned on in the high-level stage of the PWM signal and turned off in the low-level stage of the PWM signal. After outputting the PWM signal, the control module 110 can detect the resistance value of the heating component 141 once through the resistance sampling circuit 150 in the low-level stage of the PWM signal, that is, when the voltage regulating switch module 1303 is in the off state and the heating component 141 does not receive the output voltage, so as to judge whether the power of the heating component 141 is the target heating power according to the current resistance value of the heating component 141 when continuing to output the PWM signal with the current duty cycle. If the power of the heating component 141 is not the target heating power when continuing to output the PWM signal with the current duty cycle, then it is necessary to adjust the duty cycle of the next PWM signal according to the resistance value of the heating component 141 and the target heating power, so that the power of the heating component 141 is the target heating power, thereby keeping the heating power of the heating component 141 accurate and constant.

[0084] It should be noted that in actual implementation, the control module 110 can also detect the resistance value of the heating component 141 once in the low-level stage of the PWM signal after outputting the PWM signal for multiple cycles. The specific detection interval time can be set according to actual needs, such as setting according to the TCR of each heating component 140 and the accuracy requirements of the heating power, etc.

[0085] The above only takes the heating component 141 as an example to illustrate the resistance value detection and power supply process. The resistance value detection and power supply process of other heating components can refer to the heating component 141, and will not be elaborated in this embodiment.

[0086] The structure of the resistance sampling circuit 150 can be set according to actual needs. In one embodiment, it can refer to Figure 7 that the resistance sampling circuit 150 includes a sampling resistor R4, a detection switch unit 1501 and a current limiting resistor R3. The control module 110 is used to control the detection switch unit 1501 to conduct, so that the sampling resistor R4 and each heating component 140 in the power supply state are voltage-divided; the control module 110 is also used to receive the voltage parameter after the sampling resistor R4 is voltage-divided through the current limiting resistor R3, so as to determine the resistance value of the heating component 140 in the power supply state according to the voltage parameter.

[0087] Specifically, the first end of the sampling resistor R4 can be connected to each heating component ( Figure 7The first ends of the heating components (respectively shown as heating component H1, heating component H2, and heating component H3) after being connected in series, the second end of the sampling resistor R4 is connected to the power supply through the detection switch unit 1501; the controlled end of the detection switch unit 1501 is connected to the control module 110; the control module 110 is also connected to the first end of the sampling resistor R4 through the current-limiting resistor R3.

[0088] Among them, the power supply connected to the detection switch unit 1501 can be set according to the actual situation. For example, it can be the positive electrode BAT+ of a single battery cell, or it can be the output end of the voltage conversion module 1302.

[0089] During actual implementation, the resistance value detection is usually carried out during the stage when the power supply circuit 130 stops supplying power. At this time, the control module 110 outputs a control signal to the detection switch unit 1501 to make the detection switch unit 1501 conduct, so that the power supply powers the heating component to be detected. At the same time, the control module 110 determines the resistance value of the heating component to be detected according to the voltage parameter read through the current-limiting resistor R3.

[0090] The structure of the detection switch unit 1501 can be set according to the actual situation. In one embodiment, the detection switch unit 1501 includes a switching transistor Q2 and a resistor R5. The controlled end of the switching transistor Q2 is connected to the control module 110, the first end of the switching transistor Q2 is connected to the power supply, the second end of the switching transistor Q2 is connected to the sampling resistor R4, and both ends of the resistor R5 are respectively connected to the controlled end and the first end of the switching transistor Q2.

[0091] In one embodiment, as Figure 6 shown, the power supply switch module 120 includes a plurality of power supply switch units 1201, and the number of the power supply switch units 1201 is equal to the number of the heating components 140. The control module 110 is used to control the power supply state of each heating component 140 through each power supply switch unit 1201.

[0092] Specifically, the number of the power supply switch units 1201 is equal to the number of the heating components 140. Each power supply switch unit 1201 is respectively connected to a heating component 140, and the controlled ends of each power supply switch unit 1201 are all connected to the control module 110. The control module 110 controls whether each heating component 140 is in the power supply state through the power supply switch unit 1201.

[0093] Still taking Figure 7Taking the illustrated embodiment as an example, the number of heating components is three, namely heating component H1, heating component H2, and heating component H3, and a power supply switch unit 1201 is connected to each heating component. The first end and the second end of the power supply switch unit 1201 are connected to both ends of the corresponding heating component. When the heating component needs to generate heat, the controller 1101 in the control module 110 controls the corresponding power supply switch unit 1201 to disconnect; when the heating component does not need to generate heat, the controller 1101 controls the corresponding power supply switch unit 1201 to conduct; thus, by controlling the power supply switch units 1201 respectively connected to each heating component, accurate control of the power supply state of each heating component is achieved.

[0094] The structure of the power supply switch unit 1201 can be set according to actual needs. In one embodiment, the power supply switch unit 1201 includes a switching tube and a resistor. The controlled end of the switching tube serves as the controlled end of the power supply switch unit 1201, and the first end and the second end of the switching tube are respectively connected to both ends of the corresponding heating component.

[0095] In Figure 7 In the illustrated embodiment, the power supply switch unit 1201 corresponding to the heating component H1 includes a switching tube Q3 and a resistor R6. The controlled end of the switching tube Q3 is connected to the controller 1101, the first end of the switching tube Q3 is connected to one end of the heating component H1, the second end of the switching tube Q3 is connected to the other end of the heating component H1, and the resistor R6 is connected between the controlled end and the first end of the switching tube Q3. The power supply switch unit 1201 corresponding to the heating component H2 includes a switching tube Q4 and a resistor R7. The controlled end of the switching tube Q4 is connected to the controller 1101, the first end of the switching tube Q4 is connected to one end of the heating component H2, the second end of the switching tube Q4 is connected to the other end of the heating component H2, and the resistor R7 is connected between the controlled end and the first end of the switching tube Q4. The power supply switch unit 1201 corresponding to the heating component H3 includes a switching tube Q5 and a resistor R8. The controlled end of the switching tube Q5 is connected to the controller 1101, the first end of the switching tube Q5 is connected to one end of the heating component H3, the second end of the switching tube Q5 is connected to the other end of the heating component H3, and the resistor R8 is connected between the controlled end and the first end of the switching tube Q5.

[0096] In this embodiment, the controller 1101 can achieve control of the power supply state of each heating component by controlling the states of the switching tube Q3, the switching tube Q4, and the switching tube Q5. For example, when the heating components H1 and H2 need to generate heat and the heating component H3 does not need to generate heat, the controller 1101 controls the switching tube Q3 and the switching tube Q4 to disconnect and controls the switching tube Q5 to conduct, so that the heating components H1 and H2 are in the power supply state to generate heat and the heating component H3 is in the non-power supply state. Thus, by controlling the power supply switch units 1201 respectively connected to each heating component, accurate control of the power supply state of each heating component is achieved.

[0097] In one embodiment, the electronic atomization device further includes a diode D1. The cathode of the diode D1 is connected to the head end after the heating components 140 are connected in series, and the anode of the diode D1 is grounded.

[0098] In this embodiment, the diode D1 serves as a freewheeling diode, which can improve the safety of the switching tubes in each power supply switching unit 1201, thereby enhancing the safety of the entire circuit.

[0099] It should be noted that the types of the above-mentioned switching tubes do not need to be limited. Those skilled in the art can set them according to actual needs. The controlled terminals, first terminals, and second terminals of the switching tubes need to be determined in combination with the types of the switching tubes, and this is not limited in this embodiment. Exemplarily, the switching tube is a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), its gate is the controlled terminal, the source is the first terminal, and the drain is the second terminal.

[0100] To better understand the above embodiments, the following will be explained in detail with a specific embodiment. Please refer to Figure 7 , and the following method for detecting the resistance values of the heating components will be described. Assume that the ADC (Analog to Digital Converter) sampling accuracy of the controller 1101 is 12 bits.

[0101] 1. When detecting the total resistance value of the three series-connected heating components, the controller 1101 controls the switching tube Q1 to be turned off, the switching tube Q2 to be turned on, and the switching tubes Q3, Q4, and Q5 to be turned off, and samples the value of the AD_HEAT pin, and then calculates the total resistance value of the three series-connected heating components. The calculation can refer to the following formula:

[0102] AD_HEAT sampling value / 4096 = (R_H1 + R_H2 + R_H3) / (R_H1 + R_H2 + R_H3 + R_Q2 + R_R4), where R_H1 represents the resistance value of the heating component H1, R_H2 represents the resistance value of the heating component H2, R_H3 represents the resistance value of the heating component H3, R_Q2 represents the on-state resistance value of the switching tube Q2, and R_R4 represents the resistance value of the sampling resistor R4.

[0103] 2. When detecting the resistance value of the heating component H1, the controller 1101 controls the switching tubes Q1 and Q3 to be turned off, and the switching tubes Q2, Q4, and Q5 to be turned on, and samples the value of the AD_HEAT pin, and then calculates the resistance value of the heating component H1. The calculation can refer to the following formula:

[0104] AD_HEAT sampling value / 4096 = R_H1 / (R_H1 + R_Q2 + R_Q4 + R_Q5 + R_R4), where R_Q4 represents the on-state resistance value of the switching transistor Q4, and R_Q5 represents the on-state resistance value of the switching transistor Q5.

[0105] 3. When detecting the resistance value of the heating component H2, the controller 1101 controls the switching transistors Q1 and Q4 to be turned off, and the switching transistors Q2, Q3, and Q5 to be turned on, samples the value of the AD_HEAT pin, and then calculates the resistance value of the heating element H2. The calculation can refer to the following formula:

[0106] AD_HEAT sampling value / 4096 = R_H2 / (R_H2 + R_Q2 + R_Q3 + R_Q5 + R_R4), where R_Q3 represents the on-state resistance value of the switching transistor Q3.

[0107] 4. When detecting the resistance value of the heating component H3, the controller 1101 controls the switching transistors Q1 and Q5 to be turned off, and the switching transistors Q2, Q3, and Q4 to be turned on, samples the value of the AD_HEAT pin, and then calculates the resistance value of the heating element H3. The calculation can refer to the following formula:

[0108] AD_HEAT sampling value / 4096 = R_H3 / (R_H3 + R_Q2 + R_Q3 + R_Q4 + R_R4).

[0109] The following describes the method for determining the output power of each heating component:

[0110] 1. When all three heating components need to generate heat, the switching transistors Q3, Q4, and Q5 are all turned off.

[0111] The total output power is: ;

[0112] , where DUTY represents the duty cycle of the PWM signal input to the voltage regulating switch module 1303, R_Q1 represents the on-state resistance value of the switching transistor Q1, and V_OUT represents the voltage output by the voltage conversion module 1302.

[0113] The output power of the heating component H1 ;

[0114] The output power of the heating component H2 ;

[0115] The output power of the heating component H3 is .

[0116] 2. When two heating components need to generate heat, taking the heating of heating component H1 and heating component H2 as an example, switch tube Q3 is non-conductive, switch tube Q4 is non-conductive, and switch tube Q5 is conductive.

[0117] The total output power is: ;

[0118] ;

[0119] Output power of H1 ;

[0120] Output power of H2 .

[0121] 3. When one heating component needs to generate heat, taking the heating of heating component H1 as an example, switch tube Q3 is non-conductive, switch tube Q4 is conductive, and switch tube Q5 is conductive.

[0122] The total output power is: ;

[0123] ;

[0124] The output power of H1, P1 = POUT.

[0125] In the above-mentioned electronic atomization device, by setting a boost module, the output voltage can be increased and the stability of the output voltage can be ensured. By connecting multiple heating components 140 in series, the on-load voltage can be detected more accurately, and the accuracy of the output power of the heating components 140 in the power supply state can be improved. Moreover, through the control of a PWM signal, the duty cycle of each heating component 140 can be ensured to be consistent, so that the aerosol consistency heated and atomized by each heating component 140 is better.

[0126] In one embodiment, a control method for an electronic atomization device is provided, which is implemented based on the electronic atomization device, and the electronic atomization device can be set with reference to the above-mentioned embodiments. The control method of the electronic atomization device can be applied to the control module in the electronic atomization device. Specifically, the control module obtains a heating control instruction; controls the power supply switch module according to the heating control instruction to control the power supply state of each heating component; and controls the power supply circuit to output a corresponding output voltage according to the power supply state of each heating component, and the output voltage is used to supply power to each heating component in the power supply state. Thus, the heating components in the power supply state can be heated at the target heating power, improving the atomization effect of the aerosol generation matrix in multiple atomization chambers and enhancing the atomization reliability of the electronic atomization device.

[0127] In one embodiment, as Figure 8As shown, a control method for an electronic atomization device is provided. Taking the application of this method to the control module in the electronic atomization device as an example, it includes the following steps 210 - step 230.

[0128] Step 210, obtain a heating control instruction.

[0129] Among them, the heating control instruction is used to indicate which specific heating component needs to generate heat. Further, the heating control instruction is also used to indicate the target heating power of the heating component that needs to generate heat.

[0130] The manner in which the control module obtains the heating control instruction does not need to be limited. For example, the control module is connected to an input circuit and receives the heating control instruction issued by the user through the input circuit. Or, the control module is connected to the user's terminal and obtains the heating control instruction through the terminal. The terminal can be, but is not limited to, a smart phone, a tablet computer, a wearable device, etc.

[0131] Step 220, control the power supply switch module according to the heating control instruction to control the power supply state of each heating component.

[0132] Specifically, the control module controls the heating component that needs to generate heat to be in a powered state to generate heat during operation; at the same time, it controls the heating components that do not need to generate heat to be in an unpowered state.

[0133] Step 230, control the power supply circuit to output a corresponding output voltage according to the power supply state of each heating component.

[0134] Specifically, the output voltage is used to supply power to each heating component in the powered state. The control module can determine the magnitude of the output voltage that the power supply circuit needs to output according to the resistance value and the target heating power of the heating components in the powered state, and then control the power supply circuit to output the corresponding output voltage so that the output power of the heating components in the powered state is the target heating power.

[0135] The above control method for the electronic atomization device can make the output power of each heating component accurate and constant, so that the aerosol obtained by atomization in the atomization chamber correspondingly heated by each heating component has better consistency, thereby improving the atomization reliability of the electronic atomization device.

[0136] In one embodiment, the electronic atomization device further includes a resistance sampling circuit. Step 230 includes: controlling the detection switch unit of the resistance sampling circuit to conduct, so as to receive voltage parameters through the current-limiting resistor of the resistance sampling circuit. The voltage parameters are the voltage parameters after voltage division of the sampling resistor and each heating component in the powered state; determining the resistance value of each heating component in the powered state according to the voltage parameters; controlling the power supply circuit to output a corresponding output voltage according to the resistance value of the heating components in the powered state.

[0137] In actual implementation, according to actual needs, the resistance values of each heating component can be detected through a resistance sampling circuit; alternatively, only the resistance values of the heating components in the powered state can be detected to quickly determine the output voltage.

[0138] The time for detecting the resistance value of the heating component can be set according to the actual situation. For example, it can be obtained once in each cycle of the PWM signal; it can also be obtained once when the state of the heating component in the powered state changes; or it can be obtained once at intervals.

[0139] In this embodiment, the accurate resistance values of each heating component can be detected. When controlling the heating of each heating component, according to the accurate resistance value of the heating component to be heated and the target heating power, a more accurate output voltage value of the power supply circuit can be obtained, and the power supply circuit can be controlled according to the calculated output voltage value, so that the power of the heating component in the powered state is the target heating power.

[0140] In one embodiment, the electrical switch module includes a plurality of power supply switch units. The power supply switch module is controlled according to the heating control instruction to control the power supply state of each heating component, including: controlling each power supply switch unit according to the heating control instruction to control the power supply state of each heating component.

[0141] In this embodiment, by correspondingly setting a power supply switch unit for each heating component, when the control module controls the power supply switch unit to conduct, it can control its corresponding heating component to be in a non-powered state; by controlling the power supply switch unit to disconnect, it can control its corresponding heating component to be in a powered state. Thus, the accurate control of the power supply state of each heating component can be realized, and the simultaneous heating of multiple aerosol atomization chambers can be achieved, so that aerosols can be generated simultaneously in multiple atomization chambers, thereby improving the atomization ability of the electronic atomization device.

[0142] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same moment, but can be executed at different moments. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least a part of other steps or steps in other steps.

[0143] Based on the same inventive concept, an embodiment of the present application further provides a control device for an electronic atomization device for implementing the control method of the electronic atomization device involved above. The implementation solution provided by this device for solving problems is similar to the implementation solution described in the above method. Therefore, the specific limitations in one or more embodiments of the control device for the electronic atomization device provided below can refer to the limitations on the control method of the electronic atomization device in the above text, and will not be repeated here.

[0144] In an exemplary embodiment, as Figure 9 shown, a control device for an electronic atomization device is provided for controlling the water-making equipment in the above embodiments. Specifically, the control device for the electronic atomization device includes: an instruction acquisition module 310, a state control module 320, and a power supply control module 330, where:

[0145] The instruction acquisition module 310 is configured to acquire a heating control instruction;

[0146] The state control module 320 is configured to control the power supply switch module according to the heating control instruction to control the power supply state of each heating component;

[0147] The power supply control module 330 is configured to control the power supply circuit to output a corresponding output voltage according to the power supply state of each heating component.

[0148] In one embodiment, the power supply control module 330 is further configured to control the detection switch unit of the resistance sampling circuit to conduct, so as to receive voltage parameters through the current-limiting resistor of the resistance sampling circuit, where the voltage parameters are the voltage parameters after the sampling resistor and each heating component in the power supply state are voltage-divided; determine the resistance value of each heating component in the power supply state according to the voltage parameters; and control the power supply circuit to output a corresponding output voltage according to the resistance value of the heating component in the power supply state.

[0149] In one embodiment, the state control module 320 is further configured to control each power supply switch unit according to the heating control instruction to control the power supply state of each heating component.

[0150] Each module in the above control device for the electronic atomization device can be implemented in whole or in part by software, hardware, and their combination. The above modules can be embedded in the processor in the computer device in hardware form or independent of it, or stored in the memory in the computer device in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0151] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0152] Acquire a heating control instruction;

[0153] Control the power supply switch module according to the heating control instruction to control the power supply status of each heating component;

[0154] Control the power supply circuit to output a corresponding output voltage according to the power supply status of each heating component.

[0155] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: control the detection switch unit of the resistance sampling circuit to conduct, so as to receive the voltage parameter through the current limiting resistor of the resistance sampling circuit, and the voltage parameter is the voltage parameter after the sampling resistor and each heating component in the power supply state are voltage-divided; determine the resistance value of each heating component in the power supply state according to the voltage parameter; control the power supply circuit to output a corresponding output voltage according to the resistance value of the heating component in the power supply state.

[0156] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: control each power supply switch unit according to the heating control instruction to control the power supply status of each heating component.

[0157] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in this application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in this application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0158] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0159] The above-described embodiments merely represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of this application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of this application should be subject to the appended claims.

Claims

1. An electronic atomization device, characterized in that, Comprising: A power supply switch module, a power supply circuit, and: At least two heating components, which are connected in series; A control module for controlling the power supply state of each of the heating components through the power supply switch module, And for controlling the output voltage of the power supply circuit according to the power supply state of each of the heating components, and the output voltage is used to supply power to each of the heating components in the powered state.

2. The electronic atomization device according to claim 1, characterized in that, The power supply circuit includes an energy storage element and a voltage conversion module, and the voltage conversion module is used to boost the electric energy provided by the energy storage element to the output voltage according to the control of the control module.

3. The electronic atomization device according to claim 2, characterized in that, The power supply circuit further includes: a voltage regulating switch module, and the voltage regulating switch module is used to adjust the output voltage output by the voltage conversion module according to the control of the control module, and the adjusted output voltage is used to supply power to each of the heating components in the powered state.

4. The electronic atomization device according to any one of claims 1-3, characterized in that, It further includes a resistance sampling circuit, and the control module is further used to control the resistance sampling circuit to detect the resistance value of the heating component; The control module is further used to control the output voltage of the power supply circuit according to the resistance value of the heating component in the powered state.

5. The electronic atomization device according to claim 4, characterized in that, The resistance sampling circuit includes a sampling resistor, a detection switch unit, and a current limiting resistor; The control module is used to control the detection switch unit to conduct, so that the sampling resistor divides the voltage with each of the heating components in the powered state; the control module is further used to receive the voltage parameter after the sampling resistor divides the voltage through the current limiting resistor, so as to determine the resistance value of the heating component in the powered state according to the voltage parameter.

6. The electronic atomization device according to claim 1, characterized in that, The power supply switch module includes a plurality of power supply switch units, and the number of the power supply switch units is equal to the number of the heating components; the control module is used to control the power supply state of each of the heating components through each of the power supply switch units.

7. The electronic atomization device according to claim 1, characterized in that, It further includes a diode, the cathode of the diode is connected to the head end after each of the heating components is connected in series, and the anode of the diode is grounded.

8. A control method for an electronic atomization device, characterized in that, Executed by the control module in the electronic atomization device according to any one of claims 1 to 7, the method includes: Obtaining a heating control instruction; Controlling the power supply switch module according to the heating control instruction to control the power supply state of each of the heating components; Controlling the power supply circuit to output a corresponding output voltage according to the power supply state of each of the heating components, and the output voltage is used to supply power to each of the heating components in the powered state.

9. The method according to claim 8, characterized in that, The electronic atomization device further includes a resistance sampling circuit, and controlling the power supply circuit to output a corresponding output voltage according to the power supply state of each of the heating components includes: Controlling the detection switch unit of the resistance sampling circuit to conduct, so as to receive a voltage parameter through the current limiting resistor of the resistance sampling circuit, and the voltage parameter is the voltage parameter after the sampling resistor divides the voltage with each of the heating components in the powered state; Determining the resistance value of each of the heating components in the powered state according to the voltage parameter; Controlling the power supply circuit to output a corresponding output voltage according to the resistance value of the heating component in the powered state.

10. The method according to claim 9, characterized in that, The power supply switch module includes a plurality of power supply switch units. Controlling the power supply switch module according to the heating control instruction to control the power supply states of the heating components includes: Controlling each of the power supply switch units according to the heating control instruction to control the power supply states of the heating components.

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