Disclosure of Invention
The invention aims to solve the technical problems of long preheating waiting time and high power consumption in the prior art, and provides a heating non-combustion device and a control method thereof.
The technical scheme adopted for solving the technical problems is as follows: a control method of constructing a heating non-combustion apparatus including a heating assembly for heating an aerosol-forming substrate, the control method comprising:
After starting, detecting whether suction action occurs in real time;
When the suction action is detected, controlling the heating component to start heating and maintaining at a preset target temperature so that the heating component heats the corresponding area of the aerosol-forming substrate, wherein the heating component is positioned at the periphery of the aerosol-forming substrate and deviates from the central axis of the aerosol-forming substrate;
Upon detection of a cessation of the pumping action, the heating assembly and/or the aerosol-forming substrate are controlled to rotate along a central axis of the aerosol-forming substrate such that the heating assembly and the aerosol-forming substrate are displaced in a circumferential direction of the aerosol-forming substrate.
Preferably, the step of heating the respective region of the aerosol-forming substrate by the heating assembly comprises:
The heating component heats the corresponding area of the aerosol-forming substrate by adopting a heating mode of microwave radiation.
Preferably, the step of controlling rotation of the heating assembly and/or the aerosol-forming substrate along a central axis of the aerosol-forming substrate comprises:
When the aerosol-forming substrate is fixedly arranged, controlling the heating component to rotate along the central axis of the aerosol-forming substrate by a preset angle according to a preset first rotation direction; or alternatively
When the heating component is fixedly arranged, controlling the aerosol-forming substrate to rotate along the central axis of the aerosol-forming substrate by a preset angle according to a preset second rotation direction; or alternatively
Controlling the heating assembly to rotate a first angle along a central axis of the aerosol-forming substrate in a preset first rotational direction; and controlling the aerosol-forming substrate to rotate along its central axis by a second angle in a second predetermined rotational direction.
Preferably, after the step of controlling the rotation of the heating assembly and/or the aerosol-forming substrate along the central axis of the aerosol-forming substrate, further comprises:
Recording the current rotation times, and judging whether the current rotation times reach preset times or not;
And outputting prompt information of the end of suction when the preset times are reached.
Preferably, upon detecting that the suction action is stopped, controlling the heating assembly and/or the aerosol-forming substrate to rotate along a central axis of the aerosol-forming substrate comprises:
And stopping heating of the heating assembly or controlling the heating assembly to heat and maintain at a preset second temperature when the suction action is detected to stop, and controlling the heating assembly and/or the aerosol-forming substrate to rotate along the central axis of the aerosol-forming substrate, wherein the second temperature is less than the target temperature.
Preferably, the step of stopping heating of the heating assembly and controlling rotation of the heating assembly and/or the aerosol-forming substrate along a central axis of the aerosol-forming substrate comprises:
Stopping heating of the heating assembly;
Waiting for a preset period of time;
The heating assembly and/or the aerosol-forming substrate are controlled to rotate along a central axis of the aerosol-forming substrate.
Preferably, the preset period is 0 to 150ms.
Preferably, the step of detecting whether the pumping action occurs in real time includes:
And acquiring an air pressure detection signal from an air flow sensor arranged in the air flow channel in real time, and judging whether a suction action occurs or not according to the air flow detection signal.
Preferably, the step of determining whether the suction action occurs according to the airflow detection signal includes:
judging whether the airflow detection signal is higher than a threshold value;
Above a threshold, determining that a pumping action is occurring;
and when the suction action is not higher than the threshold value, determining that the suction action is stopped.
Preferably, the target temperature is a temperature range or a specific temperature value.
The invention also constructs a heating non-combustion apparatus comprising a processor, a memory storing a computer program, a heating assembly for heating an aerosol-forming substrate, the heating assembly being located at the periphery of the aerosol-forming substrate, the processor implementing the steps of the control method of the heating non-combustion apparatus described above when the computer program is executed.
According to the technical scheme, the heating component is positioned at the periphery of the aerosol-forming substrate and deviates from the central axis of the aerosol-forming substrate, and the heating component and/or the aerosol-forming substrate are controlled to rotate along the central axis of the aerosol-forming substrate after each suction is finished, so that the heating component and/or the aerosol-forming substrate generate new displacement in the circumferential direction of the aerosol-forming substrate. In this way, the heating assembly heats only a partial region of the aerosol-forming substrate at the next puff by the user, so that the aerosol-forming substrate in that region can be rapidly warmed to a smokable temperature for aerosol generation by nebulisation. Moreover, each time the heating assembly is drawn, different regions of the aerosol-forming substrate are heated, and circumferential staged heating of the aerosol-forming substrate is achieved. Based on the above, the heating non-combustion device detects whether the pumping action occurs in real time after being started, and controls the heating component to heat and maintain at the preset target temperature when the pumping action occurs, so that when a user uses the heating non-combustion device, the aerosol forming substrate is not required to be preheated, on one hand, zero-waiting preheating is truly realized, and the user experience is improved; on the other hand, the power consumption of the heating nonflammable device is also reduced.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a flowchart of an embodiment of a control method of a heating non-combustion apparatus of the present invention, first of all, illustrating that the heating non-combustion apparatus includes a heating assembly for heating an aerosol-forming substrate. The aerosol-forming substrate may be cylindrical, for example, and has a central axis. The heating element may take a variety of forms, for example: the heating sheet, the heating needle, the heating rod, the heating wire or the wire can also be a combination of two or more heating devices with different forms.
Referring to fig. 1 and 2, in this embodiment, the heating element 100 is located at the periphery of the aerosol-forming substrate 200 and is offset from the central axis of the aerosol-forming substrate 200. Moreover, the control method includes the steps of:
Step S10, detecting whether suction action occurs in real time after starting;
In this step, the heating nonflammable means may be activated by detecting a user interaction (e.g., key long press, microphone input) or automatically upon detecting insertion of an aerosol-forming substrate into the appliance. After start-up, the aerosol-forming substrate is not required to be preheated, and whether a pumping action occurs or not is detected in real time, i.e. the user is waited for a pumping action.
Step S20, when the occurrence of suction action is detected, controlling the heating component to start heating and maintaining at a preset target temperature, so that the heating component heats the corresponding area of the aerosol-forming substrate;
In this step, when the user performs suction, that is, when the occurrence of suction action is detected, heating of the heating assembly may be started and maintained at a preset target temperature. Moreover, as shown in fig. 2, since the heating element 100 is located at the periphery of the aerosol-forming substrate 200 and is offset from the central axis of the aerosol-forming substrate 200, compared with the conventional central heating method (in which the heating element is at least partially inserted into the aerosol-forming substrate) and the circumferential heating method (in which the heating element is sleeved on the periphery of the aerosol-forming substrate), when the heating element is operated, the heating element heats only the region of the aerosol-forming substrate near the heating element, so that the aerosol-forming substrate in the region can be rapidly heated to reach a smokable temperature, and aerosol is generated by atomization for user's inhalation.
Further, when the heating component is controlled, the temperature of the heating component can be detected in real time by arranging the temperature measuring module, and the temperature of the heating component is controlled by adopting a PID algorithm in combination with the preset target temperature, so that the heating component is maintained at the target temperature, for example, when the heating component exceeds the target temperature, heating is stopped or power is reduced; when the heating assembly is below the target temperature, heating is turned on or power is increased. That is, each puff of the user is controlled as an independent puff. In addition, the temperature measuring module can be arranged on the outer wall of the heating component, and a thermistor, a temperature measuring film or the like can be selected. It will be appreciated that since the temperature of the aerosol-forming substrate is controlled by controlling the temperature of the heating element, there is a positive correlation between the temperature of the heating element and the aerosol-forming substrate, but not necessarily all the same. That is, in some embodiments, the temperature of the heating assembly may be used to characterize the temperature of the aerosol-forming substrate.
With respect to the target temperature, it may be a temperature range, for example 230-260 ℃, i.e. the normal operating temperature of the heating assembly is a temperature range when the user is sucking; moreover, in some embodiments, the target temperature may be a specific temperature value, i.e., the temperature of the heating assembly is maintained at a fixed value, e.g., 250 ℃ during pumping by the user.
And step S30, when the suction action is detected to be stopped, controlling the heating assembly and/or the aerosol-forming substrate to rotate along the central axis of the aerosol-forming substrate so as to enable the heating assembly and the aerosol-forming substrate to generate corresponding displacement in the circumferential direction of the aerosol-forming substrate.
In this step, when the user stops the suction, that is, when the suction action is detected to be stopped, at least one of the heating assembly and the aerosol-forming substrate is rotated by being controlled, and both are caused to generate a new displacement in the circumferential direction of the aerosol-forming substrate, and then the user is waited for the next suction.
In the technical solution of this embodiment, the heating element is located at the periphery of the aerosol-forming substrate and is offset from the central axis of the aerosol-forming substrate, and after each suction is completed, the heating element and/or the aerosol-forming substrate is controlled to rotate along the central axis of the aerosol-forming substrate, so that both generate new displacement in the circumferential direction of the aerosol-forming substrate. In this way, the heating assembly heats only a partial region of the aerosol-forming substrate at the next puff by the user, so that the aerosol-forming substrate in that region can be rapidly warmed to a smokable temperature for aerosol generation by nebulisation. Moreover, each time the heating assembly is drawn, different regions of the aerosol-forming substrate are heated, and circumferential staged heating of the aerosol-forming substrate is achieved. Based on the above, the heating non-combustion device detects whether the pumping action occurs in real time after being started, and controls the heating component to heat and maintain at the preset target temperature when the pumping action occurs, so that when a user uses the heating non-combustion device, the aerosol forming substrate is not required to be preheated, on one hand, zero-waiting preheating is truly realized, and the user experience is improved; on the other hand, the power consumption of the heating nonflammable device is also reduced.
Further, in an alternative embodiment, step S30 includes:
And stopping heating of the heating assembly or controlling the heating assembly to heat and maintain at a preset second temperature when the suction action is detected to stop, and controlling the heating assembly and/or the aerosol-forming substrate to rotate along the central axis of the aerosol-forming substrate so as to enable the heating assembly and the aerosol-forming substrate to generate corresponding displacement in the circumferential direction of the aerosol-forming substrate, wherein the second temperature is smaller than the target temperature.
In one implementation, upon detection of cessation of the pumping action, heating of the heating assembly is immediately stopped, i.e., heating of the aerosol-forming substrate is stopped. Therefore, after the user sucks one mouth each time, the heating process can be closed in time, and the heating process can not be restarted until the next sucking action is detected, so that the instant sucking and instant stopping function is truly realized. Furthermore, as the continuous heating and heat preservation in the interval of two times of suction is not needed, the power consumption of the heating non-combustion device is further reduced.
In another implementation, when the pumping action is detected to stop, the heating assembly is controlled to heat and maintain at a preset second temperature, which is less than the target temperature, so that the power consumption of the heating non-combustion device can be reduced.
Further, in an alternative embodiment, the step of heating the respective regions of the aerosol-forming substrate by the heating assembly in step S20 comprises: the heating component heats the corresponding area of the aerosol-forming substrate by adopting a heating mode of microwave radiation. In this embodiment, since the aerosol-forming substrate is heated by microwave radiation, the frequency of the microwaves is high, and the radiated energy is also high, so that the heating component is instantaneously heated to rapidly heat the aerosol-forming substrate, thereby achieving rapid smoke emission.
Further, the implementation of controlling the rotation of the heating assembly and/or the aerosol-forming substrate along the central axis of the aerosol-forming substrate in step S30 comprises the following:
1. When the aerosol-forming substrate is fixedly arranged, the heating component is controlled to rotate along the central axis of the aerosol-forming substrate by a preset angle according to a preset first rotation direction. In this implementation, the aerosol-forming substrate remains stationary and only the heating assembly is controlled to rotate a preset angle along the central axis of the aerosol-forming substrate in a preset first direction of rotation, e.g. the heating assembly may be controlled to rotate by a stepper motor. The first rotation direction may be either clockwise or counterclockwise, and it should be understood that after the first rotation direction is determined, each rotation is turned in one direction. The preset angles for each rotation may be set to be the same or different. In one specific application, when the preset angle of each rotation is set to be the same, the total number of aspirable ports may be determined in advance according to the size, composition, etc. of the aerosol-forming substrate, and then the preset angle of each rotation Φ, Φ=360°/N, where N is the total number of aspirable ports, is calculated using the following formula, for example, when N is 12, the preset angle of each rotation is 30 °. Of course, in other embodiments, the preset angle of each rotation may be set to be not exactly the same.
2. And when the heating component is fixedly arranged, controlling the aerosol-forming substrate to rotate along the central axis of the aerosol-forming substrate by a preset angle according to a preset second rotation direction. In this implementation, the heating assembly remains stationary and only controls the aerosol-forming substrate to rotate a predetermined angle along its central axis in a predetermined second rotational direction, e.g., by a stepper motor. The second rotation direction may be clockwise or counterclockwise, and it should be understood that after the second rotation direction is determined, each rotation is turned in one direction. The preset angles for each rotation may be set to be the same or different. In one specific application, when the preset angle of each rotation is set to be the same, the total number of aspirable ports may be determined in advance according to the size, composition, etc. of the aerosol-forming substrate, and then the preset angle of each rotation Φ, Φ=360°/N, where N is the total number of aspirable ports, is calculated using the following formula, for example, when N is 12, the preset angle of each rotation is 30 °. Of course, in other embodiments, the preset angle of each rotation may be set to be not exactly the same.
3. Controlling the heating assembly to rotate a first angle along a central axis of the aerosol-forming substrate in a preset first rotational direction; and controlling the aerosol-forming substrate to rotate along its central axis by a second angle in a second predetermined rotational direction. In this implementation, the heating assembly and aerosol-forming substrate are controlled to rotate simultaneously, e.g., by a first stepper motor controlling the heating assembly to rotate and a second stepper motor controlling the aerosol-forming substrate to rotate. In one particular application, the first and second directions of rotation in this implementation may be different, for example, one of the heating element and the aerosol-forming substrate may be rotated clockwise along the central axis of the aerosol-forming substrate and the other may be rotated counter-clockwise along the central axis of the aerosol-forming substrate, such that the sum of the first and second angles is equal to the predetermined angle in the above embodiments. Of course, in other applications, the first and second directions of rotation may be the same, for example, both the heating element and the aerosol-forming substrate may be rotated in a clockwise direction along the central axis of the aerosol-forming substrate, such that the difference between the first and second angles is equal to the predetermined angle in the above embodiments. In addition, the preset angles corresponding to each rotation can be set to be the same or different. In one specific application, when the preset angle of each rotation is set to be the same, the total number of aspirable ports may be determined in advance according to the size, composition, etc. of the aerosol-forming substrate, and then the preset angle of each rotation Φ, Φ=360°/N, where N is the total number of aspirable ports, is calculated using the following formula, for example, when N is 12, the preset angle of each rotation is 30 °. Of course, in other embodiments, the preset angles corresponding to each rotation may be set to be not identical.
Further, in an alternative embodiment, after step S30, the method further includes:
Recording the current rotation times, and judging whether the current rotation times reach preset times or not;
And outputting prompt information of the end of suction when the preset times are reached.
In this embodiment, the preset number of times may be determined in advance according to the total number of the smokable ports, the initial number of rotations is 0, and after one rotation is performed, the number of rotations is increased by one until it reaches the preset number of times, at this time, a prompt message of the end of the suction is output to the user, for example, the prompt message may be output in a manner of sound, vibration, LED flashing light, or the like. In one specific application, if the preset number of times is 12, after the user sucks 12 ports, that is, after the heating component and/or the aerosol-forming substrate are controlled to rotate 12 times, the user is prompted to finish sucking, at this time, even if the user performs interaction again, the heating of the heating component is not started until the user replaces a new aerosol-forming substrate, and a new control flow is started.
Further, in an alternative embodiment, the step of stopping the heating of the heating assembly and controlling the rotation of the heating assembly and/or the aerosol-forming substrate along the central axis of the aerosol-forming substrate in step S30 comprises:
Stopping heating of the heating assembly;
waiting a preset period of time, for example, 0 to 150ms;
The heating assembly and/or the aerosol-forming substrate are controlled to rotate along a central axis of the aerosol-forming substrate.
In this embodiment, when the user draws is over, the heating of the heating element may be stopped immediately, and since both the heating element and the aerosol-forming substrate are at a higher temperature, the user may wait for a period of time before the temperature of the heating element and the aerosol-forming substrate is reduced by some amount, and then turn on the turning function.
Further, in an alternative embodiment, the step of detecting in real time whether the pumping action occurs in step S10 includes:
and acquiring an airflow detection signal from an airflow sensor arranged in the airflow channel in real time, and judging whether a suction action occurs or not according to the airflow detection signal.
In this embodiment, an air flow sensor may be provided in the air flow passage of the heating non-combustion device, and the air flow sensor may be an air pressure sensor, for example, an air pressure microphone, an air pressure MEMS, or the like. After the heating non-combustion device is started, an airflow detection signal is obtained from the airflow sensor in real time, and whether the suction action occurs or not is judged according to the airflow detection signal. It should be appreciated that in other embodiments, heat capacity detection, light sensing detection, etc. may be used to detect whether a pumping action is occurring.
Further, the step of judging whether the suction action occurs according to the airflow detection signal comprises the following steps:
judging whether the airflow detection signal is higher than a threshold value;
Above a threshold, determining that a pumping action is occurring;
and when the suction action is not higher than the threshold value, determining that the suction action is stopped.
In one embodiment, as shown in fig. 3, the airflow sensor is a differential pressure sensor, that is, the output airflow detection signal is a differential pressure signal between the air pressure in the airflow channel and the standard atmospheric pressure. Further, a pressure value at or near the normal atmospheric pressure is set as a threshold value, which is shown by a curve L1. When the user draws, the detected differential pressure signal is above a threshold, at which point a draw action may be determined to occur; when the user stops pumping, the detected pressure differential signal is below a threshold, at which point it may be determined that pumping action is stopped. Also, for each puff, outputting a ramped interrupt signal (rising edge trigger) to the processor when the differential pressure signal just begins to be above the threshold; when the differential pressure signal just begins to fall below the threshold, a hopped interrupt signal (falling edge trigger) is output to the processor.
Finally, it should be noted that, in other embodiments, two different thresholds may be set for the start and stop of suction, for example, in combination with the trend of the differential pressure signal, when the detected differential pressure signal is higher than the first threshold, it is determined that the suction action occurs; and determining that the pumping action is stopped when the detected differential pressure signal is below a second threshold. Moreover, the user can set the second threshold value by self-definition, for example, set to a value higher than the first threshold value, so that the heating process can be finished in advance, and the loss is further reduced.
The present invention also constructs a heating non-combustion apparatus comprising a processor, a memory storing a computer program, a heating assembly for heating an aerosol-forming substrate, the heating assembly being located at a periphery of the aerosol-forming substrate, the processor implementing the steps of the control method of the heating non-combustion apparatus described above when the computer program is executed.
The processor of the present application is used to provide computing and control capabilities to support the operation of the entire heating non-combustion apparatus. It should be appreciated that in embodiments of the present application, the Processor may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application SPECIFIC INTEGRATED Circuits (ASICs), off-the-shelf Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.