Heating control method and device of electronic atomization device and electronic atomization device

文档序号：1723677 发布日期：2019-12-20 浏览：9次中文

阅读说明：本技术 电子雾化装置的加热控制方法、控制装置及电子雾化装置 (Heating control method and device of electronic atomization device and electronic atomization device ) 是由孙长文于 2019-07-30 设计创作，主要内容包括：本申请涉及一种电子雾化装置的加热控制方法、控制装置及电子雾化装置。所述方法包括：发送PWM控制信号至雾化组件,PWM控制信号用于控制雾化组件保持在预设的目标温度恒温加热；计算雾化组件的有效输出功率；根据有效输出功率判断雾化组件含油量是否正常；若异常,则控制雾化组件降低输出功率或停止加热。采用本方法能够发送PWM控制信号至雾化组件,控制雾化组件保持在目标温度进行恒温加热,计算出雾化组件的有效输出功率,根据有效输出功率判断雾化组件的含油量是否正常,若有效输出功率均小于预设的功率阈值,表明电子雾化装置含油量异常,此时则控制雾化组件降低输出功率或停止加热,能够有效避免用户抽吸过程中出现干烧的问题。(The application relates to a heating control method and a heating control device of an electronic atomization device and the electronic atomization device. The method comprises the following steps: sending a PWM control signal to the atomization assembly, wherein the PWM control signal is used for controlling the atomization assembly to keep a preset target temperature for constant-temperature heating; calculating the effective output power of the atomization assembly; judging whether the oil content of the atomization assembly is normal or not according to the effective output power; and if the abnormal condition exists, controlling the atomization assembly to reduce the output power or stop heating. By adopting the method, the PWM control signal can be sent to the atomizing assembly, the atomizing assembly is controlled to be kept at the target temperature for constant-temperature heating, the effective output power of the atomizing assembly is calculated, whether the oil content of the atomizing assembly is normal or not is judged according to the effective output power, if the effective output power is smaller than the preset power threshold value, the oil content of the electronic atomizing device is abnormal, the atomizing assembly is controlled to reduce the output power or stop heating, and the problem of dry burning in the suction process of a user can be effectively avoided.)

1. A method of controlling heating of an electronic atomizer device, the electronic atomizer device including an atomizing assembly, the method comprising:

calculating the effective output power of the atomization assembly;

judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and if the temperature is abnormal, controlling the atomization assembly to reduce the output power or stop heating.

2. The method of claim 1, wherein the step of calculating the effective output power of the atomizing assembly comprises:

collecting power supply output voltage of the electronic atomization device in each power-on stage, heating resistance of the atomization assembly in each power-off stage and duty ratios of PWM (pulse width modulation) periods corresponding to the output voltage and the heating resistance in a preset time period; wherein each PWM cycle of the PWM control signal comprises a number of the power-on phases and the power-off phases;

calculating a plurality of effective output powers in the time period according to the output voltages, the heating resistance values and the duty ratios corresponding to the heating resistance values;

and if each effective output power is smaller than a preset power threshold value, controlling the atomization assembly to reduce the output power or stop heating.

3. The method of claim 2, further comprising a prompting assembly, wherein the method further comprises:

if each effective output power is smaller than the power threshold, generating prompt information; the prompt information is used for prompting a user that the oil content of the atomization assembly is abnormal;

and sending the prompt information to the prompt component for display.

4. The heating control method of the electronic atomizer according to any one of claims 1 to 3, wherein the step of controlling the atomizer assembly to maintain a constant temperature heating at a preset target temperature comprises:

acquiring the real-time temperature of the atomization assembly;

and regulating and controlling the real-time temperature of the atomization assembly according to the target temperature.

5. The method of claim 4, wherein the step of regulating the real-time temperature of the atomizing assembly based on the target temperature comprises:

acquiring an initial resistance value and an initial temperature of the atomization assembly in an unheated state;

calculating a target resistance value of the atomization assembly when the atomization assembly is heated to the target temperature according to the initial resistance value, the initial temperature, the resistance temperature coefficient and a preset target temperature of the atomization assembly;

acquiring the heating resistance value in an ADC (analog to digital converter) sampling mode;

and when the absolute value of the difference value between the heating resistance value and the target resistance value is larger than the lower limit value of a preset difference range and smaller than the upper limit value of the difference range, regulating and controlling the PWM control signal by adopting a PID algorithm so as to regulate the temperature of the atomization assembly.

6. The method of claim 5, wherein the step of regulating the real-time temperature of the atomizing assembly based on the target temperature further comprises:

and when the absolute value of the difference value between the heating resistance value and the target resistance value is smaller than the lower limit value of the difference range, controlling the atomization assembly to heat by adopting maximum output power.

7. The heating control method of the electronic atomizer of claim 5, wherein the step of obtaining an initial resistance value of the atomizing assembly in an unheated state comprises:

when the cigarette cartridge of the electronic atomization device is identified to be loaded, sampling the resistance value of the atomization assembly according to a preset sampling frequency;

comparing the collected resistance values;

if the difference value between every two acquired resistance values is smaller than the preset resistance difference value, determining the average value of the resistance values as the initial resistance value of the atomization assembly in an unheated state, and updating the initial resistance value record;

and if the difference value between every two acquired resistance values is larger than the resistance difference value, acquiring the latest initial resistance value record from the initial resistance value record as the initial resistance value of the atomization assembly in the unheated state.

8. A heating control device is applied to an electronic atomization device, the electronic atomization device comprises an atomization assembly, and the device is characterized by comprising:

the PWM control module is used for sending a PWM control signal to the atomization assembly, and the PWM control signal is used for controlling the atomization assembly to keep constant temperature heating at a preset target temperature;

the effective output power calculation module is used for calculating the effective output power of the atomization assembly;

the oil content judging module is used for judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and the atomization assembly heating control module is used for controlling the atomization assembly to reduce the output power or stop heating when the oil content of the atomization assembly is abnormal.

9. An electronic atomisation device comprising a memory and a processor, the memory storing a computer program, characterised in that the processor, when executing the computer program, carries out the steps of the method according to any of the claims 1 to 7.

10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.

Technical Field

The present disclosure relates to electronic cigarette technologies, and in particular, to a heating control method and a heating control device for an electronic atomization apparatus, and an electronic atomization apparatus.

Background

The electronic cigarette is also known as a virtual cigarette and an electronic atomization device. The electronic cigarette is used as a cigarette substitute. Electronic cigarettes have an appearance and taste similar to cigarettes, but generally do not contain other harmful components such as tar, aerosols, etc. in cigarettes.

The electronic atomizer generally includes a liquid storage assembly, an atomizing assembly and a battery assembly. In the existing electronic atomization device, the purpose of preventing dry burning is mainly to prevent harmful substances and scorched smell. Because once the scorched smell is generated, some substances which are not beneficial to health are generated, thereby endangering the health of human bodies. The reason why the electronic atomization device generates harmful gas and scorched smell in the heating process is mainly because: after the tobacco tar is used up, the heating is continued, the liquid guiding element in the atomizing assembly is not smooth to discharge liquid, so that the tobacco tar in the liquid storage assembly can not be smoothly conducted to the heating element of the atomizing assembly, and harmful substances are generated at an excessive temperature in the heating process.

Disclosure of Invention

In view of the above, it is desirable to provide a heating control method and a control device for an electronic atomizing device, and an electronic atomizing device, which can prevent dry burning.

A heating control method of an electronic atomization device is applied to the electronic atomization device, the electronic atomization device comprises an atomization assembly, and the method comprises the following steps:

calculating the effective output power of the atomization assembly;

judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and if the abnormal condition exists, controlling the atomization assembly to reduce the output power or stop heating.

In one embodiment, the step of calculating the effective output power of the atomizing assembly comprises:

collecting power supply output voltage of the electronic atomization device in each power-on stage, heating resistance of the atomization assembly in each power-off stage and duty ratios of PWM (pulse width modulation) periods corresponding to the output voltages and the heating resistance in a preset time period; each PWM cycle of the PWM control signal comprises a plurality of power-on stages and power-off stages;

calculating a plurality of effective output powers in a time period according to each output voltage, each heating resistance value and the corresponding duty ratio;

and if each effective output power is smaller than the preset power threshold, controlling the atomization assembly to reduce the output power or stop heating.

In one embodiment, the electronic atomization device further comprises a prompt component, and the method further comprises:

if each effective output power is smaller than the power threshold, generating prompt information; the prompt information is used for prompting the user that the oil content of the electronic atomization device is abnormal;

and sending prompt information to a prompt component for displaying.

In one embodiment, the step of controlling the atomizing assembly to maintain a preset target temperature for constant heating comprises the following steps:

acquiring the real-time temperature of the atomization assembly;

and regulating and controlling the real-time temperature of the atomization assembly according to the target temperature.

In one embodiment, the step of regulating the real-time temperature of the atomizing assembly based on the target temperature comprises:

acquiring an initial resistance value and an initial temperature of the atomization assembly in an unheated state;

calculating a target resistance value of the atomization assembly when the atomization assembly is heated to the target temperature according to the initial resistance value, the initial temperature, the resistance temperature coefficient and the preset target temperature of the atomization assembly;

acquiring a heating resistance value in an ADC (analog to digital converter) sampling mode;

and when the absolute value of the difference value between the heating resistance value and the target resistance value is larger than the lower limit value of the preset difference range and smaller than the upper limit value of the difference range, regulating and controlling the PWM control signal by adopting a PID algorithm so as to regulate the temperature of the atomization assembly.

In one embodiment, the step of regulating the real-time temperature of the atomizing assembly based on the target temperature further comprises:

and when the absolute value of the difference value between the heating resistance value and the target resistance value is smaller than the lower limit value of the difference range, controlling the atomizing assembly to heat by adopting the maximum output power.

In one embodiment, the step of obtaining the initial resistance value of the atomization assembly in the unheated state comprises:

when the cigarette cartridge of the electronic atomization device is identified to be loaded, sampling the resistance value of the atomization assembly according to a preset sampling frequency;

comparing the collected resistance values;

The utility model provides a heating control device is applied to electronic atomization device, and electronic atomization device includes the atomizing subassembly, and the device includes:

the effective output power calculation module is used for calculating the effective output power of the atomization assembly;

the oil content judging module is used for judging whether the oil content of the atomizing assembly is normal or not according to the effective output power;

An electronic atomization device, comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:

sending a PWM control signal to the atomization assembly, wherein the PWM control signal is used for controlling the atomization assembly to keep a preset target temperature for constant-temperature heating; each PWM cycle of the PWM control signal comprises a plurality of power-on stages and power-off stages;

calculating the effective output power of the atomization assembly;

judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and if the abnormal condition exists, controlling the atomization assembly to reduce the output power or stop heating.

A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:

calculating the effective output power of the atomization assembly;

judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and if the abnormal condition exists, controlling the atomization assembly to reduce the output power or stop heating.

According to the heating control method, the control device and the electronic atomization device of the electronic atomization device, the PWM control signal is sent to the atomization assembly, the atomization assembly is controlled to be kept at the target temperature for constant-temperature heating, the effective output power of the atomization assembly is calculated, whether the oil content of the atomization assembly is normal or not is judged according to the effective output power, the output power can be maintained at a stable value due to the adoption of constant-temperature heating, when the tobacco tar content is reduced, the output energy is reduced due to the constant temperature of the atomization assembly, namely the output power is reduced, therefore, if the effective output power is smaller than a preset power threshold value, the oil content of the atomization assembly is abnormal, the atomization assembly is controlled to reduce the output power or stop heating at the moment, and the problem of dry burning in the suction process of a user can be effectively avoided. The scheme can keep constant heating temperature, and can avoid dry burning caused by continuous heating after the tobacco tar is used up and when the liquid guiding element is not smooth to discharge liquid.

Drawings

FIG. 1 is a schematic flow chart of a heating control method according to an embodiment;

FIG. 2 is a schematic flow chart illustrating the steps of calculating the effective output power of the atomizing assembly in one embodiment;

FIG. 3 is a schematic flow chart of a heating control method according to another embodiment;

FIG. 4 is a schematic flow chart illustrating a constant-temperature heating step for controlling the atomizing assembly to maintain a preset target temperature in one embodiment;

FIG. 5 is a schematic flow chart illustrating steps for regulating the real-time temperature of the atomizing assembly according to a predetermined target temperature, in accordance with one embodiment;

FIG. 6 is a schematic flow chart illustrating a real-time temperature step of the atomizing assembly according to a predetermined target temperature in another embodiment;

FIG. 7 is a flowchart illustrating a step of obtaining an initial resistance of the atomizing assembly in an unheated state according to one embodiment;

FIG. 8 is a block diagram of a heating control device according to an embodiment;

FIG. 9 is a block diagram of an effective output power calculation module, according to an embodiment;

FIG. 10 is a block diagram showing the construction of a heating control apparatus according to another embodiment;

FIG. 11 is a block diagram of a control signal sending module according to an embodiment;

FIG. 12 is a block diagram of a temperature regulation module according to an embodiment;

FIG. 13 is a block diagram of a temperature regulation module according to another embodiment;

FIG. 14 is a view showing an internal structure of an electronic atomizer in accordance with an exemplary embodiment;

fig. 15 is a circuit configuration diagram of a sampling circuit in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In one embodiment, as shown in fig. 1, there is provided a heating control method applied to an electronic atomization device, the electronic atomization device including an atomization assembly, the method including:

and step 100, sending a PWM control signal to the atomization component, wherein the PWM control signal is used for controlling the atomization component to keep a preset target temperature for constant temperature heating.

The Pulse Width Modulation (PWM) technique is an analog control method, which modulates the bias of the base electrode of a transistor or the gate of a MOS transistor according to the change of a corresponding load to change the conduction time of the transistor or the MOS transistor, thereby changing the output of a switching regulator. This way the output voltage of the power supply can be kept constant when the operating conditions change, which is a very efficient technique for controlling the analog circuit by means of the digital signal of the control unit. Constant temperature heating means that the temperature of atomizing subassembly is kept at target temperature and is heated the tobacco tar, and constant temperature heating can guarantee the taste and the even smog volume of smog production.

And 200, calculating the effective output power of the atomization assembly.

The available output power is the fraction consumed for atomizing the tobacco tar.

And 300, judging whether the oil content of the atomization assembly is normal or not according to the effective output power.

According to the law of conservation of energy, can know, the produced heat of atomizing subassembly, partly is absorbed by self, lead to self temperature to rise, another part is absorbed by the tobacco tar, make the tobacco tar atomize, and the tobacco tar content is normal adopting constant temperature heating and the tobacco tar can stabilize the heat absorption promptly, can reach thermal balance, effective output can stabilize at a value, when the content of tobacco tar reduces, the energy of atomizing subassembly output can reduce thereupon, consequently according to effective output can judge whether oil content is normal.

And 400, if the abnormal condition exists, controlling the atomizing assembly to reduce the output power or stop heating.

The oil content anomaly may be a smoke oil content less than normal, smokeless oil. In one embodiment, the atomization assembly includes a liquid guiding element and a heating element, and therefore the oil content is abnormal, which may be caused by insufficient tobacco tar in the heating element due to poor liquid drainage of the liquid guiding element, so that the heating element is over-heated and dried, or the liquid guiding element is burnt to generate scorched smell. Therefore, when the oil content is judged to be abnormal, the temperature of the heating element needs to be reduced by reducing the output power or stopping heating, so as to avoid dry burning.

In one embodiment, as shown in FIG. 2, the step of calculating the effective output power of the atomizing assembly comprises:

step 210, collecting power output voltage of the electronic atomization device in each power-on stage, heating resistance value of the atomization component in each power-off stage, and duty ratio of PWM (pulse width modulation) period corresponding to each output voltage and heating resistance value in a preset time period; each PWM cycle of the PWM control signal comprises a plurality of power-on stages and power-off stages.

At a preset time period t₁To t₂In, gather every switch tube and switch on under PWM control signal's control, atomizing subassembly switch on under the stage of power, electron atomizing device's power output voltage V. Obtaining a time period t corresponding to the collected power supply output voltage V₁To t₂In, every switch tube disconnection under PWM control signal's control, atomizing component outage stage, atomizing component's heating resistance R, because in a time cycle, PWM control signal may change, consequently need gather power output voltage V of electronic atomizing device under every circular telegram stage, atomizing component's heating resistance and the Duty cycle that PWM control signal corresponds in the time cycle under every outage stage. In one embodiment, the time of each time period may be selected within a range of 0.01s to 0.3s, and in one embodiment, in order to ensure the timeliness and the accuracy of the detection, the time of each time period may be selected within a range of 0.1s to 0.15 s.

Step 220, calculating a plurality of effective output powers P in a time period according to each output voltage V, each heating resistance value R and the Duty ratio Duty corresponding to each heating resistance value R_rms。

And step 230, if each effective output power is smaller than a preset power threshold, controlling the atomizing assembly to reduce the output power or stop heating.

If the time period t₁To t₂Every effective output power in all is less than preset power threshold, indicates promptly that tobacco tar content is less than normal oil mass, then need control atomizing subassembly and stop heating, avoids causing dry combustion method. Through regularly detect and guarantee that the user just can in time control atomizing subassembly in case the tobacco tar content is not enough in the suction process and reduce output or stop heating, avoid producing burnt flavor or even harmful gas by user's suction because dry combustion method.

In the heating control method, the PWM control signal is sent to the atomizing assembly, the atomizing assembly is controlled to be kept at the target temperature for constant-temperature heating, the effective output power in a time period is calculated periodically, whether the oil content of the electronic atomizing device is normal or not is judged according to the effective output power, the output power can be maintained at a stable value due to the adoption of constant-temperature heating, when the content of the tobacco tar is reduced, the output energy is reduced due to the constant temperature of the atomizing assembly, namely the output power is reduced, therefore, if the effective output power is smaller than a preset power threshold value, the oil content of the electronic atomizing device is abnormal, the atomizing assembly is controlled to stop heating at the moment, and the problem of dry burning in the suction process of a user can be effectively avoided.

In one embodiment, the electronic atomization device further includes a prompt component, as shown in fig. 3, and the heating control method further includes:

step 500, if each effective output power is smaller than a power threshold, generating prompt information; the prompt message is used for prompting the user that the oil content of the electronic atomization device is abnormal.

The oil content of a user can be a certain oil content lower than the normal working oil, and even if the oil content is low, dry burning can be caused; it is also possible that the oil content is zero. Therefore, when the oil content is lower than the normal working oil amount, the user needs to be prompted so that the user can add the tobacco tar or replace the cartridge with enough tobacco tar in time. Under some circumstances, the electronic atomization device is invertd and also can produce the condition that detects out the oil content and be less than normal working oil volume, and there is the potential safety hazard in the time of electronic atomization device inversion in addition, and after suggestion user through the tip information, the user can inspect electronic atomization device, avoids causing the potential safety hazard.

And step 600, sending prompt information to a prompt component for displaying.

The prompting mode can be voice prompt, text prompt, vibration prompt and the like, and can also be a combination of various prompting modes, and the type of the prompting information can be determined according to the mode adopted by the specific electronic atomization device.

In one embodiment, as shown in fig. 4, the step of controlling the atomizing assembly to maintain a preset target temperature for constant heating comprises:

step 110, acquiring a real-time temperature of the atomization assembly.

In order to keep the atomization assembly heated at a constant temperature, the real-time temperature of the atomization assembly needs to be acquired, and the atomization assembly can be regulated and controlled according to the difference between the real-time temperature and the target temperature.

And step 120, regulating and controlling the real-time temperature of the atomization assembly according to the target temperature.

The real-time temperature of the atomization assembly is obtained, if the real-time temperature is not equal to the target temperature, adjustment is needed, if the real-time temperature is higher than the target temperature, adjustment is needed to be carried out, and if the real-time temperature is lower than the target temperature, adjustment is needed to be carried out. Changing the PWM control signal is to change the pulse signal width of the control output and adjust the on-off time of the atomization component, thereby changing the voltage and achieving the purpose of changing the temperature.

In one embodiment, as shown in fig. 5, the step of regulating the real-time temperature of the atomizing assembly according to the preset target temperature comprises:

and step 111, acquiring an initial resistance value and an initial temperature of the atomization assembly in an unheated state.

The initial resistance value and the initial temperature in the unheated state are the resistance impact temperature of the atomization component in the normal temperature state.

112, according to the initial resistance value R of the atomization assembly₀Initial temperature T₀Temperature coefficient of resistance K_tcrAnd a preset target temperature T_aimCalculating the target resistance R of the atomization assembly when the atomization assembly is heated to the target temperature_aim。

R_aim＝R₀+K_tcr×(T_aim-T₀)

And 113, acquiring the heating resistance value in an ADC (analog to digital converter) sampling mode.

The MCU or the PLC of the control chip used in the control assembly has the function of ADC sampling, and the heating resistance value can be obtained by matching with a peripheral circuit.

And step 114, when the absolute value of the difference value between the heating resistance value and the target resistance value is larger than the lower limit value of the preset difference range and smaller than the upper limit value of the difference range, regulating and controlling the PWM control signal by adopting a PID algorithm so as to regulate the temperature of the atomization assembly.

In the process control, the control according to the proportion (P), the integral (I) and the derivative (D) of the deviation is called as a PID control algorithm, and any one of an incremental algorithm, a position algorithm and a derivative algorithm can be specifically adopted. In one embodiment, an incremental PID algorithm is used because of the requirement for the amount of smoke generated during the heating of the atomizing assembly, each heating time typically not exceeding 5 seconds, and the need to rapidly raise the temperature to the target temperature and control it to stabilize.

In one embodiment, as shown in fig. 6, the step of regulating the real-time temperature of the atomizing assembly according to the preset target temperature further comprises:

and step 115, controlling the atomization assembly to heat by adopting maximum output power when the absolute value of the difference value between the heating resistance value and the target resistance value is smaller than the lower limit value of the difference value range.

Before the absolute value of the difference value between the heating resistance value and the target resistance value reaches the lower limit value of the difference value range, the maximum output power is adopted for heating, so that the temperature of the atomizing assembly can reach the atomizing temperature point as early as possible to begin to atomize the tobacco tar.

In one embodiment, as shown in fig. 7, the step of obtaining the initial resistance value of the atomization assembly in the unheated state comprises:

and 116, sampling the resistance value of the atomization component according to a preset sampling frequency when the cigarette cartridge of the electronic atomization device is identified to be loaded.

In order to ensure that the obtained initial resistance is the resistance of the atomization assembly in a normal-temperature state, resistance sampling is carried out when the cigarette cartridge is identified to be loaded, and then the sampled resistance is judged. The sampling according to the preset sampling frequency means sampling once every t time according to a preset time interval t. In one embodiment, the resistance values of the atomization assemblies are sampled for corresponding times according to preset sampling times, and the resistance values of the atomization assemblies sampled for times are obtained.

Step 117, comparing the collected resistance values.

And step 118, if the difference value between every two acquired resistance values is smaller than the preset resistance difference value, determining the average value of the resistance values as the initial resistance value of the atomization assembly in the unheated state, and updating the initial resistance value record.

If the sampled resistances of the atomizing assemblies are equal or the difference value between every two resistances is smaller than the preset resistance difference value, that is, the temperature of the atomizing assembly is not changed or the change is slight probably due to the change of the environmental temperature, the current atomizing assembly is judged to be in an unheated state, and therefore the resistance value can be used as an initial resistance value. And the initial resistance value recording refers to collecting and recording the determined initial resistance value of the atomization assembly in an unheated state.

And step 119, if the difference value between every two acquired resistance values is larger than the resistance difference value, acquiring the latest initial resistance value record from the initial resistance value record as the initial resistance value of the atomization assembly in the unheated state.

If the difference value between the sampled resistance values of the plurality of atomization components is larger than the resistance difference value, the atomization components are not in a normal temperature state at present and are in a heated state, so that the temperature can be reduced along with time, the resistance value is reduced, the collected resistance value cannot be used as an initial resistance value, and in order to quickly determine the initial resistance value, the last determined initial resistance value can be directly obtained from the initial resistance value record to be used as the initial resistance value of the current atomization component.

In one embodiment, the atomizing assembly R can be obtained using a sampling circuit as shown in FIG. 15_HeatThe initial resistance value and the preheat resistance value, the sampling circuit comprising: MOS pipe Q1, diode D1, resistor R1 and resistor R2;

the grid electrode of the MOS tube is electrically connected with the ADC sampling end of the microprocessor 121; the drain electrode is electrically connected with a first end of the resistor R1, and the source electrode is electrically connected with a power supply;

the second end of the resistor R1 is electrically connected with the cathode of the diode D1, and the anode of the diode D1 is grounded;

the cathode of the diode D1 is electrically connected with the output end of the microprocessor 121, and the output end of the microprocessor 121 is electrically connected with the atomizing assembly R_HeatFirst end of (3), atomizing assembly R_HeatThe second end is grounded;

the resistor R2 has a first end electrically connected to the gate of the MOS transistor Q1 and a second end electrically connected to the source of the MOS transistor.

It should be understood that although the various steps in the flow charts of fig. 1-6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.

In one embodiment, as shown in fig. 8, there is provided a heating control device including: a PWM control module 910, an effective output power calculation module 920, an oil content determination module 930, and an atomizing assembly heating control module 940; wherein:

the PWM control module 910 is configured to send a PWM control signal to the atomizing assembly, where the PWM control signal is used to control the atomizing assembly to maintain a preset target temperature for constant temperature heating;

an effective output power calculation module 920, configured to calculate an effective output power of the atomizing assembly;

an oil content determining module 930, configured to determine whether the oil content of the atomizing assembly is normal according to the effective output power;

and the atomization assembly heating control module 940 is used for controlling the atomization assembly to reduce the output power or stop heating when the oil content of the atomization assembly is abnormal.

In one embodiment, as shown in fig. 9, the effective output power calculation module 920 includes: collection module 921, calculation module 922 and first control module 923, wherein:

the acquisition module 921 is configured to acquire a power output voltage of the electronic atomization device at each power-on stage, a heating resistance value of the atomization assembly at each power-off stage, and a duty ratio of a PWM period corresponding to each output voltage and each heating resistance value in a preset time period;

the calculating module 922 is configured to calculate a plurality of effective output powers within a time period according to each output voltage, each heating resistance value, and the duty ratio corresponding to each heating resistance value;

the first control module 923 is configured to control the atomizing assembly to reduce the output power or stop heating when each effective output power is smaller than a preset power threshold.

In one embodiment, the electronic atomization device further includes a prompt component, as shown in fig. 10, and the heating control device further includes:

a prompt information generating module 950, configured to generate a prompt information when each effective output power is smaller than a power threshold; the prompt information is used for prompting a user that the oil content of the electronic atomization device is lower than the normal oil amount;

and a prompt message sending module 960, configured to send a prompt message to the prompt component for display.

In one embodiment, as shown in fig. 11, the PWM control module 910 includes:

a real-time temperature obtaining module 911, configured to obtain a real-time temperature of the atomizing assembly;

a temperature regulation module 912 for regulating the real-time temperature of the atomizing assembly according to the target temperature.

In one embodiment, as shown in fig. 12, the temperature regulation module 912 includes:

an initial parameter obtaining module 913, configured to obtain an initial resistance value and an initial temperature of the atomization assembly in an unheated state;

the target resistance value calculating module 914 is used for calculating the target resistance value of the atomization assembly when the atomization assembly is heated to the target temperature according to the initial resistance value, the initial temperature, the resistance temperature coefficient and the preset target temperature of the atomization assembly;

the ADC sampling module 915 is used for acquiring a heating resistance value in an ADC sampling mode;

and the control signal regulating and controlling module 916 is configured to regulate and control the PWM control signal by using a PID algorithm to regulate the temperature of the atomizing assembly when the absolute value of the difference between the heating resistance value and the target resistance value is greater than the lower limit value of the preset difference range and less than the upper limit value of the difference range.

In one embodiment, as shown in fig. 13, the temperature control module 912 further includes:

and the maximum power output control module 917 is used for controlling the atomizing assembly to heat with the maximum output power when the absolute value of the difference value between the heating resistance value and the target resistance value is smaller than the lower limit value of the difference range.

In one embodiment, the initial parameter obtaining module 913 includes:

the resistance value sampling module is used for sampling the resistance value of the atomization assembly according to a preset sampling frequency when the cigarette cartridge of the electronic atomization device is identified to be loaded;

the sampling resistance value comparison module compares the acquired resistance values;

the initial resistance value determining module is used for determining the average value of all the resistance values as the initial resistance value of the atomizing assembly in an unheated state and updating the initial resistance value record if the difference value between every two acquired resistance values is smaller than the preset resistance difference value; and if the difference value between every two acquired resistance values is larger than the resistance difference value, acquiring the latest initial resistance value record from the initial resistance value record as the initial resistance value of the atomization assembly in the unheated state.

For specific limitations of the heating control device, reference may be made to the above limitations of the heating control method, which are not described herein again. The respective modules in the heating control device described above may be implemented wholly or partially by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.

In one embodiment, an electronic atomizer device is provided, the internal structure of which may be as shown in fig. 12. The electronic atomization device comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the electronic atomization device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the electronic atomization device is used for connecting and communicating with an external terminal through a network. The electronic atomization device is executed by a processor to realize a heating control method. The display screen of the electronic atomization device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic atomization device can be a touch layer covered on the display screen or a key, a track ball or a touch pad arranged on the shell of the electronic atomization device.

It will be understood by those skilled in the art that the configuration shown in fig. 12 is a block diagram of only a portion of the configuration associated with the present application, and does not constitute a limitation on the electronic atomization device to which the present application is applied, and a particular electronic atomization device may include more or less components than those shown in the drawings, or may combine certain components, or have a different arrangement of components.

In one embodiment, there is provided an electronic atomising device comprising a memory and a processor, the memory having stored therein a computer program which when executed by the processor effects the steps of:

calculating the effective output power of the atomization assembly;

judging whether the oil content of the atomization assembly is normal or not according to the effective output power;

and if the abnormal condition exists, controlling the atomization assembly to reduce the output power or stop heating.

In one embodiment, the processor, when executing the computer program, further performs the steps of:

collecting power supply output voltage of the electronic atomization device in each power-on stage, heating resistance of the atomization assembly in each power-off stage and duty ratios of PWM (pulse width modulation) periods corresponding to the output voltages and the heating resistance in a preset time period; each PWM cycle of the PWM control signal comprises a plurality of power-on stages and power-off stages;

calculating a plurality of effective output powers in a time period according to each output voltage, each heating resistance value and the corresponding duty ratio;

and if each effective output power is smaller than the preset power threshold, controlling the atomization assembly to reduce the output power or stop heating. In one embodiment, the processor, when executing the computer program, further performs the steps of: