Power control method and device and electromagnetic atomizer

Abstract

The invention provides a power control method and device and an electromagnetic atomizer, and relates to the technical field of atomizers, the method comprises the steps that in response to starting of the electromagnetic atomizer, a control module is controlled to output control signals with different duty ratios to a switch module, and the control signals with the different duty ratios are used for controlling the on time and off time of the switch module; according to the turn-on time and the turn-off time of the switch module, the power supply module is controlled to intermittently supply power to the electromagnetic heating module; and when the electromagnetic heating module is electrified, the heating power of the electromagnetic heating module during electromagnetic heating is controlled according to the conduction time of the switch module. According to the technical scheme, the heating power of the electromagnetic heating module is controlled by controlling the conduction time of the switch module, the smoke generation speed of the electromagnetic atomizer can be flexibly adjusted by controlling the heating power, and the purpose of rapid smoke generation can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of atomizers, and in particular to a power control method, device and electromagnetic atomizer. Background Art

[0002] Electromagnetic atomizers, also known as electronic cigarettes, heat the atomized medium and evaporate it into aerosol, which is then inhaled by the user to achieve a smoking experience. Currently, electromagnetic atomizer products basically use resistance heating, which directly energizes both ends of the heating element. The heating power control of resistance heating generally adopts constant power, variable power, or constant voltage control methods, and the heating time is relatively long.

[0003] In the prior art, electromagnetic heating has emerged to address the problems of resistive heating. Electromagnetic heating is a non-contact heating method that uses electromagnetic induction to generate eddy currents on the metal surface to achieve heating of the electromagnetic atomizer.

[0004] However, due to the problem of electromagnetic conversion efficiency, electromagnetic heating is prone to slow electronic atomization and small amount of smoke when the electromagnetic atomizer is started. Summary of the invention

[0005] The present application provides a power control method, device and electromagnetic atomizer, which are used to solve the problem that the electronic atomization is slow and the smoke volume is small when the existing electromagnetic atomizer is started.

[0006] In a first aspect, an embodiment of the present application provides a power control method, which is applied to an electromagnetic atomizer, wherein the electromagnetic atomizer comprises a control module, a power module, an electromagnetic heating module and a switch module, wherein one end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, and the other end of the switch module is connected to the other end of the electromagnetic heating module, and the method comprises:

[0007] In response to the start-up of the electromagnetic atomizer, the control module is controlled to output control signals with different duty ratios to the switch module, and the control signals with different duty ratios are used to control the on time and off time of the switch module;

[0008] According to the on-time and off-time of the switch module, controlling the power module to intermittently supply power to the electromagnetic heating module;

[0009] When the electromagnetic heating module is powered on, the heating power of the electromagnetic heating module during electromagnetic heating is controlled according to the on-time of the switch module.

[0010] In a possible design of the first aspect, controlling the heating power of the electromagnetic heating module when performing electromagnetic heating includes:

[0011] Obtaining the puffing duration of each puff of the electromagnetic atomizer;

[0012] According to the duration of each puff, at least two heating stages are divided, and the heating powers of different heating stages are different;

[0013] The electromagnetic heating module is controlled to perform electromagnetic heating at the heating power of the current heating stage.

[0014] In another possible design of the first aspect, the heating stage includes at least a first heating stage and a second heating stage, and the at least two heating stages are divided according to the puffing duration during each puff, including:

[0015] The time period from the start of the puffing action to the first preset moment is regarded as the first heating stage;

[0016] The time period from the first preset moment to the second preset moment is taken as the second heating stage, and the heating power of the first heating stage is greater than the heating power of the second heating stage.

[0017] In another possible design of the first aspect, controlling the heating power of the electromagnetic heating module when performing electromagnetic heating includes:

[0018] Obtaining the historical puffing time of the electromagnetic atomizer at the last puff and the current puffing time of the electromagnetic atomizer at the current puff;

[0019] Determine the duration of the puff interval according to the current puff time and the historical puff time;

[0020] Determining a current startup state of the electromagnetic atomizer according to the duration of the puff interval, wherein the startup state includes a cold start and a hot start;

[0021] If the current startup state of the electromagnetic atomizer is hot startup, a first heating power is acquired, and the heating power of the electromagnetic heating module during the current electromagnetic heating is controlled to be the first heating power;

[0022] If the current startup state of the electromagnetic atomizer is a cold start, a second heating power is obtained, and the heating power of the electromagnetic heating module during the current electromagnetic heating is controlled to be the second heating power, and the second heating power is greater than the first heating power.

[0023] In another possible design of the first aspect, determining the current startup state of the electromagnetic atomizer according to the puff interval duration includes:

[0024] comparing the puff interval duration with a puff interval threshold;

[0025] If the puff interval duration is greater than the puff interval threshold, determining that the current startup state of the electromagnetic atomizer is a cold start;

[0026] If the puff interval duration is less than or equal to the puff interval threshold, it is determined that the current startup state of the electromagnetic atomizer is a hot start.

[0027] In another possible design of the first aspect, controlling the heating power of the electromagnetic heating module during electromagnetic heating includes:

[0028] Each time the electromagnetic atomizer is cold started, it is recorded as the first puff of the electromagnetic atomizer, and the puff time of the first puff is obtained as the starting puff time;

[0029] Obtaining the time of each puff of the electromagnetic atomizer after the first puff as the subsequent puff time;

[0030] Determine the puff interval between two adjacent puffs according to each subsequent puff time and the initial puff time;

[0031] According to the puff interval time, the heating power of the electromagnetic heating module during each puff is controlled.

[0032] In another possible design of the first aspect, controlling the heating power of the electromagnetic heating module for electromagnetic heating during each puff according to the puff interval time includes:

[0033] The heating power during the last puff is configured as the last heating power, and the heating power during the next puff is configured as the next heating power;

[0034] If the puff interval is shorter than the preset interval, the heating power during the next puff is controlled to be smaller than the heating power during the previous puff;

[0035] If the puff interval is greater than or equal to a preset interval, the heating power during the next puff is controlled to be the preset power, and the preset power is the heating power during the cold start of the electromagnetic atomizer.

[0036] In another possible design of the first aspect, controlling the heating power of the electromagnetic heating module during electromagnetic heating includes:

[0037] Obtaining the historical puffing time of the last puffing of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed;

[0038] Determining a current heating power according to a puff interval time between a current moment and the historical puff time;

[0039] The heating power of the electromagnetic heating module when the electromagnetic atomizer is currently suctioned is controlled to be the current heating power.

[0040] In another possible design of the first aspect, the obtaining of the historical puffing time of the last puffing of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed includes:

[0041] When the electromagnetic atomizer is currently being puffed, determining the historical number of puffs of the electromagnetic atomizer before the current moment;

[0042] If the historical number of puffs is greater than the preset number of puffs, the time when the electromagnetic atomizer was last puffed before the current time is obtained as the historical puff time.

[0043] In a second aspect, an embodiment of the present application provides a power control device, including:

[0044] A signal output control module, used for controlling the control module to output control signals with different duty ratios to the switch module in response to the start-up of the electromagnetic atomizer, wherein the control signals with different duty ratios are used for controlling the on-time and off-time of the switch module;

[0045] A power supply control module, used for controlling the power supply module to intermittently supply power to the electromagnetic heating module according to the on-time and off-time of the switch module;

[0046] The power control module is used to control the heating power of the electromagnetic heating module when the electromagnetic heating module performs electromagnetic heating according to the conduction time of the switch module when the electromagnetic heating module is powered on.

[0047] In a third aspect, an embodiment of the present application provides an electromagnetic atomizer, comprising: a control module, a power module, an electromagnetic heating module and a switch module, wherein one end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, and the other end of the switch module is connected to the other end of the electromagnetic heating module.

[0048] The control module is used to output control signals with different duty ratios to control the on time and off time of the switch module;

[0049] The power supply module is used to control the power supply module to intermittently supply power to the electromagnetic heating module according to the on time and off time of the switch module;

[0050] The electromagnetic heating module is used to output different heating powers for electromagnetic heating according to the conduction time of the switch module when powered on.

[0051] The power control method, device and electromagnetic atomizer provided in the embodiments of the present application control the heating power of the electromagnetic heating module by controlling the conduction time of the switch module. By controlling the heating power, the smoke-generating speed of the electromagnetic atomizer can be flexibly adjusted to achieve the purpose of rapid smoke-generating. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the description, are used to explain the principles of the present application;

[0053] Figure 1 A schematic diagram of the circuit principle structure of the electronic atomization product provided in the embodiment of the present application;

[0054] Figure 2 A schematic diagram of a power control method according to an embodiment of the present invention;

[0055] Figure 3 A schematic diagram of a control signal provided in an embodiment of the present application;

[0056] Figure 4 A schematic diagram of a control signal provided by another embodiment of the present application;

[0057] Figure 5 A schematic diagram of a heating power curve provided in an embodiment of the present application;

[0058] Figure 6 A schematic diagram of the heating power configuration for each puff provided in an embodiment of the present application;

[0059] Figure 7 A schematic diagram of heating power configuration for different puff time intervals provided in an embodiment of the present application;

[0060] Figure 8 A schematic diagram of the structure of a power control device provided in an embodiment of the present application;

[0061] Fig. 9 A schematic diagram of the structure of the electromagnetic atomizer provided in an embodiment of the present application.

[0062] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0064] First, the terms involved in this application are explained:

[0065] Electromagnetic atomizer: also known as electronic cigarette, is an electronic product that imitates cigarettes. It is mainly composed of four parts: smoke oil, heating system, power supply and filter. It produces aerosol with a specific smell through heating and atomization for users to inhale.

[0066] At present, electronic atomization products basically use resistance heating. Electromagnetic heating is different from resistance heating. From the perspective of heating methods, resistance heating is to directly energize both ends of the heating element, while electromagnetic heating is non-contact heating, which generates eddy currents on the metal surface through electromagnetic induction. From the perspective of the atomizer, since resistance heating is contact heating, there are not many restrictions on the structure of the cartridge. Due to the problem of electromagnetic conversion efficiency, electromagnetic heating requires the heating element to be as close to the induction coil as possible to obtain the maximum electromagnetic induction efficiency, which has many restrictions on the structural design of the cartridge. From the perspective of power control, resistance power control generally adopts constant power, variable power, or constant voltage control methods. At present, the traditional resistance power control method is not suitable for electromagnetic atomization products. Moreover, when the constant power and constant voltage control methods are applied to electromagnetic atomization, there is also the problem of slow smoke speed. At the same time, electromagnetic atomization is prone to long-term non-operation, small amount of smoke when the heating element is cold, and insufficient liquid supply on the heating element during continuous inhalation, which is easy to produce burnt smell.

[0067] In response to the above problems, Figure 1 The schematic diagram of the circuit principle structure of the electronic atomization product provided in the embodiment of the present application is as follows: Figure 1As shown, it includes a power module 10, a microcontroller unit (MCU) 11, a metal-oxide-semiconductor field-effect transistor (MOSFET) tube 12 and a resonance module 13. Among them, the resonance module 13 is usually composed of an inductor L and a capacitor C, and the connection mode of the inductor L and the capacitor C can be in series or in parallel, depending on the actual application requirements. The MCU controls the MOS tube to intermittently supply power to the resonance module through the input and output port (such as the I / O port), so that the inductor L can generate an alternating magnetic field, thereby generating eddy currents on the metal surface to achieve the effect of heating and atomization. The embodiment of the present application outputs control signals of different duty cycles to the MOS tube through the MCU, and controls the heating power of the resonance module by controlling the conduction time of the MOS tube. By controlling the heating power, the smoke-starting speed of the electromagnetic atomizer can be flexibly adjusted, and the purpose of rapid smoke-starting, increasing the amount of smoke, and reducing the smell of smoke can be achieved.

[0068] The technical solution of the present application is described in detail below through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0069] Figure 2 A flow chart of a power control method provided in an embodiment of the present application, which can be applied to an electromagnetic atomizer, wherein the electromagnetic atomizer includes a control module (such as the above-mentioned MCU), a power module, an electromagnetic heating module (such as the above-mentioned resonance module) and a switch module (such as the above-mentioned MOS tube), one end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, and the other end of the switch module is connected to the other end of the electromagnetic heating module, such as Figure 2 As shown, the method may specifically include the following steps:

[0070] Step S201, in response to the start-up of the electromagnetic atomizer, the control module outputs control signals with different duty ratios to the switch module, and the control signals with different duty ratios are used to control the on time and off time of the switch module.

[0071] In this embodiment, the control module may be the above-mentioned MCU, and the IO port of the MCU may output pulse signals with different duty cycles as control signals. For example, Figure 3 A schematic diagram of a control signal provided in an embodiment of the present application, such as Figure 3As shown, taking the control signal including a high level and a low level as an example, when the output control signal is a high level, the switch module can be controlled to be turned on, and when the output control signal is a low level, the switch module can be controlled to be turned off. Thus, the duration of the high level can determine the on time of the switch module, and the duration of the low level can determine the off time of the switch module.

[0072] The switch module may be the MOS tube mentioned above. By controlling the level of the gate of the MOS tube, the on or off of the MOS tube can be controlled, thereby controlling the on time and off time of the MOS tube.

[0073] The IO port of the control module can be connected to the gate of the MOS tube, thereby outputting a control signal with alternating high and low levels to the MOS tube to control the on and off of the MOS tube.

[0074] In this embodiment, the duty cycle of the control signal output by the control module is adjustable. For example, Figure 4 A schematic diagram of a control signal provided in another embodiment of the present application is shown in FIG. Figure 4 As shown, the duty cycle of the control signal can be higher than the above Figure 3 The duty cycle of the control signal shown in FIG. By adjusting the duty cycle, the switch module can be turned on and off, thereby controlling the heating power of the electromagnetic heating module.

[0075] Step S202: According to the on-time and off-time of the switch module, the power module is controlled to intermittently supply power to the electromagnetic heating module.

[0076] In this embodiment, when the switch module is turned on, the power module will supply power to the electromagnetic heating module. At this time, the electromagnetic heating module will generate an alternating magnetic field after being energized, thereby generating eddy currents on the surface of the heating element (metal surface) of the electromagnetic atomizer, thereby achieving the effect of heating and atomization. When the switch module is turned off, the power module stops supplying power to the electromagnetic heating module. At this time, the electromagnetic heating module stops generating an alternating magnetic field and no longer generates eddy currents on the surface of the heating element, so that the heating element stops heating and the atomizing medium stops atomizing.

[0077] Step S203, when the electromagnetic heating module is powered on, the heating power of the electromagnetic heating module during electromagnetic heating is controlled according to the conduction time of the switch module.

[0078] In this embodiment, the heating power of the electromagnetic heating module during electromagnetic heating can be further controlled by controlling the on-time of the switch module. For example, the longer the on-time of the switch module is, the greater the heating power of the electromagnetic heating module can be, and when the switch module is turned off, the electromagnetic heating module stops heating.

[0079] The on-time of the switch module is related to the duty cycle of the control signal. Figure 3 and Figure 4 When the control signal is at a high level, the switch module is turned on. The longer the high level lasts, the longer the on-time of the switch module is. Therefore, the heating power can be controlled by adjusting the duty cycle of the control signal.

[0080] In this embodiment, the greater the heating power of the electromagnetic heating is, the faster the smoke generation speed of the electromagnetic atomizer is generally. Therefore, the smoke generation speed of the electromagnetic atomizer can be adjusted by adjusting the heating power.

[0081] The embodiment of the present application controls the heating power of the electromagnetic heating module by controlling the conduction time of the switch module. By controlling the heating power, the smoke generation speed of the electromagnetic atomizer can be flexibly adjusted to achieve the purpose of rapid smoke generation.

[0082] In some embodiments, when controlling the heating power of the electromagnetic heating module, it can be specifically achieved through the following steps: obtaining the puffing duration of the electromagnetic atomizer each time; dividing at least two heating stages according to the puffing duration of each time, and the heating powers of different heating stages are different; controlling the electromagnetic heating module to perform electromagnetic heating with the heating power of the current heating stage.

[0083] In this embodiment, the electromagnetic atomizer can enter the startup state after detecting the trigger signal. After startup, the user starts to inhale. During the inhalation process, the electromagnetic heating module will perform electromagnetic heating to heat the medium such as the smoke oil in the electromagnetic atomizer to atomize and produce smoke, so as to achieve the purpose of being inhaled by the user. Among them, the trigger signal includes key operation, sliding cover operation, etc. In some embodiments, after the electromagnetic atomizer is started, there will be an obvious prompt signal, such as a sound prompt, a vibration prompt, a light prompt, etc., and the user determines whether it is possible to start inhaling based on the prompt signal.

[0084] Among them, during the smoking process, the heating power of the electromagnetic heating module can change, and the smoking process can be divided into multiple different stages. The heating power corresponding to each stage can be different. By flexibly adjusting the heating power, the heating temperature of the medium such as the smoke oil can be changed, thereby further adjusting the smoke volume and improving the smoking effect.

[0085] In this embodiment, the suction process can usually last for 3 seconds or more. During the suction process, the suction process can be divided into three heating stages according to the time period, and the heating power corresponding to each heating stage is different. Figure 5 A schematic diagram of a heating power curve provided in an embodiment of the present application is shown in FIG. Figure 5As shown, the puffing process can be divided into a first heating stage, a second heating stage and a third heating stage, wherein the first heating stage is from 0 to 0.5 seconds, the second heating stage is from 0.5 seconds to 2 seconds, and the third heating stage is after 2.5 seconds. The heating power of the first heating stage is 14W, the heating power of the second heating stage is 10W, and the heating power of the third heating stage is 6W.

[0086] In actual situations, the duration of the puffing process of different users may be different, and the number of heating stages divided for this purpose may also be different. For example, if some users have a short puffing duration, only two heating stages may be divided, while if some users have a long puffing duration, more than three heating stages may be divided. The duration of each heating stage may also be adjusted according to actual conditions without specific limitations. The duration and power of each stage may also be adjusted according to the user's puffing habits.

[0087] It should be noted that the magnitude of the heating power in each heating stage can be controlled by configuring the duty cycle of the control signal, for example, Figure 5 For example, the heating power of the first heating stage is 14W, the heating power of the second heating stage is 10W, and the heating power of the third heating stage is 6W. Based on the heating strategy, the duty cycle of the control signal can be pre-configured to achieve different heating powers in each heating stage.

[0088] The embodiment of the present application divides the smoking process into more than two heating stages and configures different heating powers for each heating stage, so that the smoke generation amount in each heating stage can be adjusted, the smoke generation effect of the electromagnetic atomizer can be flexibly controlled, and the smoking effect of the electromagnetic atomizer can be improved.

[0089] Furthermore, based on the above embodiments, in other embodiments, the above heating stage can be divided into a first heating stage and a second heating stage, for a total of two heating stages, wherein, when dividing the heating stages, the time period from the start of the puffing action to the first preset moment can be taken as the first heating stage; the time period from the first preset moment to the second preset moment can be taken as the second heating stage, and the heating power of the first heating stage is greater than the heating power of the second heating stage.

[0090] In this embodiment, the start of the puffing action may specifically refer to the moment when the electromagnetic heating module is powered on and starts heating. The first preset moment and the second preset moment may be determined based on the average duration of each puff by the user. For example, taking the average duration of each puff by the user as 3 seconds, represented by [0, 3], the first preset moment may be 0.5 seconds after the start of the puffing action, the second preset moment may be 3 seconds, the first heating stage is [0, 0.5], and the second heating stage is (0.5, 3].

[0091] Exemplarily, the heating power of the first heating stage may be 14W, and the heating power of the second heating stage may be 10W.

[0092] The embodiment of the present application can achieve the effect of rapid smoke generation by controlling the heating power of the electromagnetic heating module to increase during the initial puffing period, and subsequently reducing the heating power can avoid the problem of excessive heating temperature causing a burnt smell during puffing, thereby further improving the puffing effect of the electromagnetic atomizer.

[0093] In some embodiments, the above-mentioned control of the heating power of the electromagnetic heating module can also be achieved through the following steps: obtaining the historical puffing time of the electromagnetic atomizer in the last puff and the current puffing time of the electromagnetic atomizer in the current puff; determining the puffing interval duration according to the current puffing time and the historical puffing time; determining the current startup state of the electromagnetic atomizer according to the puffing interval duration, and the startup state includes cold start and hot start; if the current startup state of the electromagnetic atomizer is hot start, obtaining the first heating power, and controlling the heating power of the electromagnetic heating module during the current electromagnetic heating to be the first heating power; if the current startup state of the electromagnetic atomizer is cold start, obtaining the second heating power, and controlling the heating power of the electromagnetic heating module during the current electromagnetic heating to be the second heating power, and the second heating power is greater than the first heating power.

[0094] Among them, cold start means that the temperature of the heating element is almost the same as the ambient temperature, and hot start means that the temperature of the heating element is higher than the ambient temperature. For example, after the user inhales, the temperature of the heating element does not drop to the ambient temperature within a period of time. At this time, the user starts inhaling again, which means that the atomizer is in a hot start state.

[0095] In this embodiment, taking the period from the start of the puffing action to the end of the puffing action as an example, the electromagnetic heating module will have a corresponding heating power during each puffing process, and according to actual conditions, there will be a time interval between each puffing of the user, sometimes the time interval is longer, and sometimes the time interval may be shorter, which is controlled by the user's actual puffing needs.

[0096] Since each puff is a continuous process, there is a time period (i.e., the continuous time period from the start of the puff action to the end of the puff action). During the last puff, the historical puff time can be a certain time in this time period, for example, the historical puff time refers to the time when the puff action starts, or it can also be the time when the puff action ends. The current puff time can be the time when the puff action starts during the current puff.

[0097] In this embodiment, after the electromagnetic heating module heats the metal surface of the heating element, if the electromagnetic heating module stops heating, the temperature of the heating element may still be relatively high at this time. If the subsequent user does not continue to inhale (i.e., the electromagnetic heating module no longer continues to heat), the temperature of the heating element will slowly drop. It can be understood that the longer the time interval between the next time the user continues to inhale, the more the temperature of the heating element will drop, so there may be two start states: cold start and hot start. Specifically, a cold start may mean that when the user continues to inhale next time, the temperature of the heating element has dropped to the ambient temperature and needs to be restarted, while a hot start may mean that when the user continues to inhale next time, the temperature of the heating element has not yet completely dropped to the ambient temperature.

[0098] The embodiment of the present application provides a larger heating power during cold start, so that the temperature of the heating element can rise rapidly, thereby quickly atomizing the medium such as the smoke oil, increasing the amount of smoke generated at the beginning of puffing, avoiding the problem of less smoke generated at the beginning of puffing due to cold start, and further improving the puffing effect.

[0099] Furthermore, based on the above embodiments, in other embodiments, the current startup state of the electromagnetic atomizer can be determined by the following steps: comparing the puff interval duration with the puff interval threshold; if the puff interval duration is greater than the puff interval threshold, determining that the current startup state of the electromagnetic atomizer is a cold start; if the puff interval duration is less than or equal to the puff interval threshold, determining that the current startup state of the electromagnetic atomizer is a hot start.

[0100] In this embodiment, the puff interval threshold can be determined based on the time required for the temperature of the heating element to drop to the ambient temperature after the heating element stops being heated. For example, the puff interval threshold can be 20 seconds. For example, if the user's last puff was 30 seconds ago and the current user starts to puff, it is determined that the current startup state of the electromagnetic atomizer is a cold start.

[0101] The embodiment of the present application configures the puff interval threshold to accurately determine whether the electromagnetic atomizer is in a cold start state or a hot start state when the user is currently puffing. Based on the different start states, the corresponding power control operation can be accurately performed, thereby improving the accuracy of heating power control.

[0102] In some embodiments, when controlling the heating power of the electromagnetic heating module, it can be specifically achieved through the following steps: each time the electromagnetic atomizer is cold-started, it is recorded as the first puff of the electromagnetic atomizer, and the puffing time of the first puff is obtained as the starting puffing time; the time of each puff of the electromagnetic atomizer after the first puff is obtained as the subsequent puffing time; according to each subsequent puffing time and the starting puffing time, the puffing interval time between each adjacent puffing is determined; according to the puffing interval time, the heating power of the electromagnetic heating module for electromagnetic heating during each puff is controlled.

[0103] In this embodiment, when the user takes a puff, the puff may be taken in a cold start state or in a hot start state. If the puff is taken in a cold start state, it may be taken as the first puff, and the moment when the puffing action starts during the first puff may be taken as the starting puff moment.

[0104] After the user completes the first puff, if he needs to puff again, he can record the time when each subsequent puff action starts as the subsequent puff time. It can be understood that after the user completes the first puff, there may be a second puff, a third puff, etc., that is, the subsequent puff time may have multiple values.

[0105] If it is the second subsequent puff, the puff time interval can be determined based on the start puff time and the time when the puff action starts during the second puff (i.e., the first value of the subsequent puff time). Further, if it is the Nth subsequent puff (N is a positive integer greater than 1), the puff time interval can be determined based on the time when the puff action starts during the N-1th puff (i.e., the N-1th value of the subsequent puff time) and the time when the puff action starts during the Nth puff.

[0106] In this embodiment, the puff time interval is used to determine whether the electromagnetic atomizer has a cold start during subsequent puffs. When there is no cold start, the corresponding heating power can be configured for the Nth puff according to N values.

[0107] For example, Figure 6 A schematic diagram of the heating power configuration for each puff provided in the embodiment of the present application is shown in FIG. Figure 6 As shown, the heating power during the first puff can be configured to 11.6W, the heating power during the second puff can be configured to 10.6W, the heating power during the third puff can be configured to 9.8, the heating power during the fourth puff can be configured to 8.6W, and the heating power during the fifth puff can be configured to 8.2W.

[0108] In this embodiment, the heating power for each puff can be configured according to actual conditions and is not limited here. After the first puff is completed after the cold start, the value of the subsequent puff number N is also not limited (refer to Figure 6 , Figure 6 The value of N is 4).

[0109] In addition, usually the heating power is gradually reduced each time after each puff. This is to avoid the burnt smell caused by excessive heating power and to improve the puffing effect. In other embodiments, the heating power for each puff can also be configured in a random order according to actual needs.

[0110] The embodiment of the present application can flexibly control the heating temperature during each subsequent puff and improve the puffing effect by successively adjusting the heating power during each subsequent puff after completing the first puff of a cold start.

[0111] Further, on the basis of the above embodiments, in other embodiments, when configuring the heating power for each subsequent puff after the cold start, the above steps can be specifically implemented: the heating power for the previous puff is configured as the previous heating power, and the heating power for the next puff is configured as the next heating power; if the puff interval is less than the preset interval length, the heating power for the next puff is controlled to be less than the heating power for the previous puff; if the puff interval is greater than or equal to the preset interval length, the heating power for the next puff is controlled to be the preset power, and the preset power is the heating power for the electromagnetic atomizer when it is cold started.

[0112] In this embodiment, the heating power for the first puff during a cold start can be configured to be 11.6W (as a preset power). When the puff interval is less than the preset interval length (e.g., 20 seconds), it can be determined that the current puff is not a cold start, and the heating power for the current puff can be adjusted to be smaller, so as to avoid the occurrence of a burnt smell. When the puff interval is greater than or equal to the preset interval length, it is determined that the current puff is a cold start, and the accumulation number is restarted at this time, that is, the current puff is regarded as the first puff of a cold start, and the subsequent puff number is calculated again.

[0113] For example, after the first puff of a cold start, if the puff interval between the user's current puff and the first puff is 30 seconds, which is greater than the preset interval length of 20 seconds, it is determined that the current puff is still a cold start puff, and the current puff will be recorded as the first puff of the cold start. If the user continues to puff, it is necessary to calculate the puff interval between the current puff and the current puff, and then compare it with the preset interval length of 20 seconds to determine whether the heating power of the current puff needs to be reduced.

[0114] The embodiment of the present application can avoid the problem of burning smell caused by insufficient liquid when the user puffs quickly by adjusting the heating power to be smaller during each puff after cold start, thereby improving the puffing effect.

[0115] In some embodiments, when controlling the heating power of the electromagnetic heating module, it can be specifically achieved through the following steps: obtaining the historical puffing time of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed; determining the current heating power based on the puffing interval time between the current time and the historical puffing time; controlling the heating power of the electromagnetic heating module when the electromagnetic atomizer is currently being puffed to be the current heating power.

[0116] In this embodiment, there is a puffing time interval between every two adjacent puffs, for example, the puffing time interval is 2 seconds, 4 seconds, 6 seconds, 30 seconds, etc. According to the puffing time interval, the heating power during the current puffing can be configured.

[0117] Exemplarily, the longer the puff interval between the current puff and the last puff, the greater the adjustment of the heating power during the current puff. Figure 7 A schematic diagram of heating power configuration for different puff time intervals provided in an embodiment of the present application, such as Figure 7 As shown, if the puff interval is less than 2 seconds, the configured average power is 6.9W, if the puff interval is greater than 2 seconds and less than 4 seconds, the configured average power is 7.4W, if the puff interval is greater than 4 seconds and less than 6 seconds, the configured average power is 8.5W, if the puff interval is greater than 6 seconds and less than 10 seconds, the configured average power is 8.5W, if the puff interval is greater than 10 seconds and less than 15 seconds, the configured average power is 9.4W, if the puff interval is greater than 15 seconds and less than 20 seconds, the configured average power is 10.3W, and if the puff interval is greater than 20 seconds, the configured average power is 11.6W.

[0118] It should be noted that, since the puffing process is a continuous period of time, the heating power configured during the puffing process is an average power. The heating power at some time points in the puffing process may be higher than the average power, and the heating power at some time points may be lower than the average power.

[0119] Furthermore, in some embodiments, when configuring the heating power during the current puff according to the puff time interval, a determination step is required: when the electromagnetic atomizer is currently puffed, determine the historical number of puffs of the electromagnetic atomizer before the current moment; if the historical number of puffs is greater than the preset number of puffs, then obtain the moment of the last puff of the electromagnetic atomizer before the current moment as the historical puff moment.

[0120] In this embodiment, the preset number of puffs may be 5 times, that is, after the user has completed 5 puffs, the puff interval duration between adjacent puffs can be calculated based on the historical puff moments when the user continues to puff the next time.

[0121] The embodiment of the present application can increase the heating power for each puff based on the time interval between each adjacent puff and the length of the time interval. The longer the time interval, the gradually increasing the heating power for each puff. This can increase the smoke generation amount and ensure the puffing effect of each puff, and can also solve the problem of burnt smell caused by insufficient liquid during fast puffing.

[0122] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0123] Figure 8 A schematic diagram of the structure of a power control device provided in an embodiment of the present application is shown in FIG. Figure 8 As shown, the power control device 800 may specifically include a signal output control module 810, a power supply control module 820 and a power control module 830. Among them, the signal output control module 810 is used to control the control module to output control signals with different duty ratios to the switch module in response to the start-up of the electromagnetic atomizer, and the control signals with different duty ratios are used to control the on-time and off-time of the switch module. The power supply control module 820 is used to control the power supply module to intermittently supply power to the electromagnetic heating module according to the on-time and off-time of the switch module. The power control module 830 is used to control the heating power of the electromagnetic heating module when the electromagnetic heating module is powered on, according to the on-time of the switch module.

[0124] Optionally, the power control module can be specifically used to: obtain the puffing duration of the electromagnetic atomizer each time; divide at least two heating stages according to the puffing duration of each time, and the heating powers of different heating stages are different; control the electromagnetic heating module to perform electromagnetic heating with the heating power of the current heating stage.

[0125] Optionally, the power control module can be specifically used to: set the time period from the start of the puffing action to the first preset moment as the first heating stage; set the time period from the first preset moment to the second preset moment as the second heating stage, and the heating power of the first heating stage is greater than the heating power of the second heating stage.

[0126] Optionally, the power control module can be specifically used to: obtain the historical puffing moment of the electromagnetic atomizer during the last puff and the current puffing moment of the electromagnetic atomizer during the current puff; determine the puffing interval duration according to the current puffing moment and the historical puffing moment; determine the current startup state of the electromagnetic atomizer according to the puffing interval duration, the startup state including cold start and hot start; if the current startup state of the electromagnetic atomizer is hot start, obtain the first heating power, and control the heating power of the electromagnetic heating module during the current electromagnetic heating to be the first heating power; if the current startup state of the electromagnetic atomizer is cold start, obtain the second heating power, and control the heating power of the electromagnetic heating module during the current electromagnetic heating to be the second heating power, and the second heating power is greater than the first heating power.

[0127] Optionally, the power control module can be specifically used to: compare the puff interval duration with the puff interval threshold; if the puff interval duration is greater than the puff interval threshold, determine that the current startup state of the electromagnetic atomizer is a cold start; if the puff interval duration is less than or equal to the puff interval threshold, determine that the current startup state of the electromagnetic atomizer is a hot start.

[0128] Optionally, the power control module can be specifically used to: record each cold start of the electromagnetic atomizer as the first puff of the electromagnetic atomizer, and obtain the puff time of the first puff as the starting puff time; obtain the time of each puff of the electromagnetic atomizer after the first puff as the subsequent puff time; determine the puff interval time between each adjacent puff according to each subsequent puff time and the starting puff time; and control the heating power of the electromagnetic heating module for electromagnetic heating during each puff according to the puff interval time.

[0129] Optionally, the power control module can be specifically used to: configure the heating power during the last puff as the last heating power, and configure the heating power during the next puff as the next heating power; if the puff interval is less than a preset interval duration, control the heating power during the next puff to be less than the heating power during the last puff; if the puff interval is greater than or equal to the preset interval duration, control the heating power during the next puff to be the preset power, and the preset power is the heating power during the cold start of the electromagnetic atomizer.

[0130] Optionally, the power control module can be specifically used to: obtain the historical puffing time of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed; determine the current heating power based on the puffing interval between the current time and the historical puffing time; control the heating power of the electromagnetic heating module when the electromagnetic atomizer is currently being puffed to be the current heating power.

[0131] Optionally, the power control module can be specifically used to: when the electromagnetic atomizer is currently being puffed, determine the historical number of puffs of the electromagnetic atomizer before the current moment; if the historical number of puffs is greater than the preset number of puffs, obtain the moment when the electromagnetic atomizer was last puffed before the current moment as the historical puff moment.

[0132] The device provided in the embodiment of the present application can be used to execute the method in the above embodiment. Its implementation principle and technical effect are similar and will not be repeated here.

[0133] It should be noted that it should be understood that the division of the various modules of the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. For example, the signal output control module can be a separately established processing element, or it can be integrated in a chip of the above device. In addition, it can also be stored in the memory of the above device in the form of program code, and called and executed by a processing element of the above device. The function of the above signal output control module. The implementation of other modules is similar. In addition, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0134] Fig. 9 This is a schematic diagram of the structure of the electromagnetic atomizer provided in the embodiment of the present application. Fig. 9 As shown, the electromagnetic atomizer includes: a control module 910, a power module 920, an electromagnetic heating module 930 and a switch module 940. One end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, and the other end of the switch module is connected to the other end of the electromagnetic heating module.

[0135] The control module is used to output control signals with different duty cycles to control the on-time and off-time of the switch module; the power module is used to control the power module to intermittently supply power to the electromagnetic heating module according to the on-time and off-time of the switch module; the electromagnetic heating module is used to output different heating powers for electromagnetic heating according to the on-time of the switch module when power is supplied.

[0136] In the present application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0137] It is to be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not intended to limit the scope of the embodiments of the present application. In the embodiments of the present application, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power control method, characterized in that: Applied to an electromagnetic atomizer, the electromagnetic atomizer comprises a control module, a power module, an electromagnetic heating module and a switch module, one end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, the other end of the switch module is connected to the other end of the electromagnetic heating module, the method comprises: In response to the start-up of the electromagnetic atomizer, the control module is controlled to output control signals with different duty ratios to the switch module, and the control signals with different duty ratios are used to control the on time and off time of the switch module; According to the on-time and off-time of the switch module, controlling the power module to intermittently supply power to the electromagnetic heating module; When the electromagnetic heating module is powered on, the heating power of the electromagnetic heating module during electromagnetic heating is controlled according to the on-time of the switch module.

2. The method according to claim 1, characterized in that The controlling the heating power of the electromagnetic heating module during electromagnetic heating comprises: Obtaining the puffing duration of each puff of the electromagnetic atomizer; According to the duration of each puff, at least two heating stages are divided, and the heating powers of different heating stages are different; The electromagnetic heating module is controlled to perform electromagnetic heating at the heating power of the current heating stage.

3. The method according to claim 2, characterized in that The heating stage includes at least a first heating stage and a second heating stage, and the at least two heating stages are divided according to the puffing duration of each puff, including: The time period from the start of the puffing action to the first preset moment is regarded as the first heating stage; The time period from the first preset moment to the second preset moment is taken as the second heating stage, and the heating power of the first heating stage is greater than the heating power of the second heating stage.

4. The method according to claim 1, characterized in that: The controlling the heating power of the electromagnetic heating module during electromagnetic heating comprises: Obtaining the historical puffing time of the electromagnetic atomizer at the last puff and the current puffing time of the electromagnetic atomizer at the current puff; Determine the duration of the puff interval according to the current puff time and the historical puff time; Determining a current startup state of the electromagnetic atomizer according to the duration of the puff interval, wherein the startup state includes a cold start and a hot start; If the current startup state of the electromagnetic atomizer is hot startup, a first heating power is acquired, and the heating power of the electromagnetic heating module during the current electromagnetic heating is controlled to be the first heating power; If the current startup state of the electromagnetic atomizer is a cold start, a second heating power is obtained, and the heating power of the electromagnetic heating module during the current electromagnetic heating is controlled to be the second heating power, and the second heating power is greater than the first heating power.

5. The method according to claim 4, characterized in that Determining the current startup state of the electromagnetic atomizer according to the puff interval duration includes: comparing the puff interval duration with a puff interval threshold; If the puff interval duration is greater than the puff interval threshold, determining that the current startup state of the electromagnetic atomizer is a cold start; If the puff interval duration is less than or equal to the puff interval threshold, it is determined that the current startup state of the electromagnetic atomizer is a hot start.

6. The method according to claim 1, characterized in that The controlling the heating power of the electromagnetic heating module during electromagnetic heating comprises: Each time the electromagnetic atomizer is cold started, it is recorded as the first puff of the electromagnetic atomizer, and the puff time of the first puff is obtained as the starting puff time; Obtaining the time of each puff of the electromagnetic atomizer after the first puff as the subsequent puff time; Determine the puff interval between two adjacent puffs according to each subsequent puff time and the initial puff time; According to the puff interval time, the heating power of the electromagnetic heating module during each puff is controlled.

7. The method according to claim 6, characterized in that The step of controlling the heating power of the electromagnetic heating module for electromagnetic heating during each puff according to the puff interval time includes: The heating power during the last puff is configured as the last heating power, and the heating power during the next puff is configured as the next heating power; If the puff interval is shorter than the preset interval, the heating power during the next puff is controlled to be smaller than the heating power during the previous puff; If the puff interval is greater than or equal to a preset interval, the heating power during the next puff is controlled to be the preset power, and the preset power is the heating power during the cold start of the electromagnetic atomizer.

8. The method according to claim 1, characterized in that The controlling the heating power of the electromagnetic heating module during electromagnetic heating comprises: Obtaining the historical puffing time of the last puffing of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed; Determining a current heating power according to a puff interval time between a current moment and the historical puff time; The heating power of the electromagnetic heating module when the electromagnetic atomizer is currently suctioned is controlled to be the current heating power.

9. The method according to claim 8, characterized in that The obtaining of the historical puffing time of the last puffing of the electromagnetic atomizer when the electromagnetic atomizer is currently being puffed includes: When the electromagnetic atomizer is currently being puffed, determining the historical number of puffs of the electromagnetic atomizer before the current moment; If the historical number of puffs is greater than the preset number of puffs, the time when the electromagnetic atomizer was last puffed before the current time is obtained as the historical puff time.

10. A power control device, characterized in that: include: A signal output control module, used for controlling the control module to output control signals with different duty ratios to the switch module in response to the start of the electromagnetic atomizer, wherein the control signals with different duty ratios are used for controlling the on time and off time of the switch module; A power supply control module, used for controlling the power supply module to intermittently supply power to the electromagnetic heating module according to the on time and off time of the switch module; The power control module is used to control the heating power of the electromagnetic heating module when the electromagnetic heating module performs electromagnetic heating according to the conduction time of the switch module when the electromagnetic heating module is powered on.

11. An electromagnetic atomizer, characterized in that: include: A control module, a power module, an electromagnetic heating module and a switch module, wherein one end of the power module is connected to the control module, the other end of the power module is connected to one end of the electromagnetic heating module, the control module is connected to one end of the switch module, and the other end of the switch module is connected to the other end of the electromagnetic heating module. The control module is used to output control signals with different duty ratios to control the on time and off time of the switch module; The power supply module is used to control the power supply module to intermittently supply power to the electromagnetic heating module according to the on time and off time of the switch module; The electromagnetic heating module is used to output different heating powers for electromagnetic heating according to the conduction time of the switch module when powered on.

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