WO2023115948A1 - Heating control method, device, and circuit, and atomization device - Google Patents

Abstract

The present application relates to a heating control method, device, and circuit, and an atomization device. According to the heating control method, the operation time of a heating assembly is divided into a plurality of first time windows, as many second time windows as possible are divided for each first time window, and the heating power of the heating assembly in the current second time window is calculated; a heating duration of the heating assembly in the next second time window is adjusted on the basis of the heating power in the current second time window and target energy, i.e., if the heating power of the currently completed second time window is too large, the next second time window can be balanced by reducing the heating power of the heating assembly, and if the heating power of the current second time window is too low, the heating power of the heating assembly can be increased in the next second time window to balance the heating power, such that the total energy released in the first time window tends to the target energy, thereby implementing accurate output of constant power.

Description

Heating control method, device and control circuit, atomization device

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111570319.4 and the title of "heating control method, device and control circuit, atomization device" submitted to the China Patent Office on December 21, 2021, the entire content of which is incorporated by reference incorporated in this application.

technical field

The present application relates to a heating control method, device, control circuit, and atomization device.

Background technique

Most of the existing atomization products use constant power heating to atomize aerosols such as pollen and spices. The current constant power control method generally uses periodic monitoring of the voltage at both ends of the heating wire and the current flowing through to obtain the current power. If the monitoring is less than the target power, continue heating; if it is greater than the target power, stop heating until the actual Resume heating when the average power is lower than the target power. Among them, in the scheme of controlling the heating and stopping of heating of the heating wire by monitoring the voltage and current at both ends of the heating wire, the output power may be too high in some heating cycles.

Contents of the invention

According to various embodiments disclosed in the present application, a heating control method, device, control circuit, and atomization device are provided.

A heating control method, the method comprising:

For each first time window configured:

Obtain the working electrical parameters of the heating assembly in each second time window; the first time window includes at least two second time windows; the working electrical parameters include working voltage and working current;

calculating the heating power of the heating element in each second time window according to the working electrical parameters in each second time window; and

According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the total energy released in the first time window towards the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

A heating control device, the device comprising:

The heating component working parameter acquisition module is used to acquire the working electrical parameters of the heating component in each second time window in each configured first time window; the first time window includes at least two second time windows; the working electrical parameter Including working voltage and working current;

The small window heating power calculation module is used to calculate the heating power of the heating element in each second time window according to the working electrical parameters in each second time window; and

The small window heating power adjustment module is used to adjust the heating duration of the heating component in the xth second time window according to the heating power in the x-1th second time window and the target energy in the first time window, so that The total energy released in the first time window tends to the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

A heating control circuit, the circuit comprising:

The sampling circuit is used to connect the heating component, and is used to sample the working electrical parameters of the heating component in each second time window in each configured first time window; the first time window includes at least two second time windows; and

The control circuit is connected with the sampling circuit and is used for connecting the heating component, and is used in the steps of the above method to make the total energy released in the first time window tend to the target energy.

A controller comprising a memory and one or more processors, the memory storing computer readable instructions that, when executed by the processor, cause the one or more processors to perform The following steps:

For each first time window configured:

Obtain the working electrical parameters of the heating assembly in each second time window; the first time window includes at least two second time windows; the working electrical parameters include working voltage and working current;

calculating the heating power of the heating element in each second time window according to the working electrical parameters in each second time window; and

According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the total energy released in the first time window towards the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

An atomizing device, comprising:

The liquid storage chamber is used to store the material to be atomized;

A heating component for atomizing the material to be atomized in the liquid storage chamber;

The heating control circuit mentioned above.

One or more non-volatile storage media storing computer-readable instructions that, when executed by one or more processors, cause one or more processors to perform the following steps:

For each first time window configured:

Obtain the working electrical parameters of the heating assembly in each second time window; the first time window includes at least two second time windows; the working electrical parameters include working voltage and working current;

calculating the heating power of the heating element in each second time window according to the working electrical parameters in each second time window; and

According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the total energy released in the first time window towards the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features and advantages of the application will be apparent from the description, drawings, and claims.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a structural schematic diagram of a heating control circuit according to one or more embodiments;

Fig. 2 is a schematic flow chart of a heating control method according to one or more embodiments;

Fig. 3 is a schematic flowchart of a heating control method according to one or more embodiments;

Fig. 4 is a power-time diagram for heating control in a first time window according to one or more embodiments;

Fig. 5 is a structural block diagram of a heating control device according to one or more embodiments;

Fig. 6 is a schematic diagram of a part of the internal structure of a controller according to one or more embodiments;

Fig. 7 is a schematic structural diagram of an atomization device according to one or more embodiments.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

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

It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.

It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element, or connected to the other element through an intervening element. In addition, "connection" in the following embodiments should be understood as "electrical connection", "communication connection" and the like if there is transmission of electrical signals or data between the connected objects.

When used herein, the singular forms "a", "an" and "the/the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more The possibility of other features, integers, steps, operations, components, parts or combinations thereof. Meanwhile, the term "and/or" used in this specification includes any and all combinations of the related listed items.

The embodiment of the present application provides a heating control method, which can be applied to the heating control circuit shown in FIG. The current is uploaded to the control circuit 40, and the control circuit 40 can control the heating power of the heating assembly 30 according to the processing results. For example, the power supply 50 can be used to determine the power supply for the heating assembly 30 by controlling the on-off of the switch circuit 42 in FIG. 1 time, thereby adjusting the heating power of the heating assembly 30.

Taking the application environment in Figure 1 as an example, the heating control method is described, as shown in Figure 2, the method includes:

For each first time window configured:

S200: Acquire working electrical parameters of the heating component in each second time window; the first time window includes at least two second time windows. The heating component can be a heating device such as a heating resistance wire, can be a heating device, or can be a complex composed of multiple heating devices. The working electrical parameters may include parameters such as working voltage and working current of the heating component.

S400: Calculate the heating power of the heating element in each second time window according to the working electrical parameters in each second time window. The calculation here refers to the heating power in the second time window obtained when the current second time window has been completed. For example, when the initial moment of the first time window is 0, the length of the first time is t1 , the heating power in the first second time window is the heating power of the heating component in the time interval [0-0+t1]. That is, the heating power of the heating component in the currently completed second time window is calculated according to the working electrical parameters in the currently completed second time window.

S600: According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the total heating time in the first time window The energy tends towards the target energy. Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window. It should be noted that x and x-1 are mainly used to distinguish two second time windows that are adjacent to each other in time sequence, and their expression does not limit the actual protection scope of the scheme of this application. Those skilled in the art should reasonably understand the relationship expression. When the working voltage of the power supply of the heating component is constant, the adjustment of the heating power can be realized by adjusting the heating duration of the heating component in each second time window to realize the adjustment of the heating power.

The target energy refers to the total energy E expected to be provided within T for a defined time window T. Take the heating component integrated in the atomization device as an example for illustration. When the heating component in the atomization device provides energy, it is hoped that it can provide stable output electric energy. To provide the total energy E within T, its output is required The power is stable around P=E/T. If P=6.5W, it means that for this atomization device, it is expected to work stably at 6.5W within T, so as to ensure that it can provide the target energy E within T. The specific target energy depends on the application scenario of the heating component, and the user can choose and configure it by himself. The total energy tends to the target energy means that the total energy released in the first time window can be equal to the target energy, or the difference between the total energy released in the first time window and the target energy is within a given error range.

Specifically, by dividing the working time of the heating component into multiple first time windows, and by making the total power of each first time window infinitely close to the target energy, the accuracy of the constant power output is improved. Specifically, for each First time window, divide at least two smaller second time windows, and at the end of the current second time window, calculate the heating power of the heating component in the current second time window, and then based on the heating in the current second time window Power and target energy, adjust the heating duration of the heating component in the next second time window, that is, the heating power of the currently completed second time window is too large, then the next second time window can be balanced by reducing the heating power of the heating component , and vice versa, if the heating power of the current second time window is too low, it can be balanced by increasing the heating power of the heating component in the next second time window, so that the total energy released in the first time window tends to this Target energy to achieve constant power and precise output.

For the circuit shown in FIG. 1, the control of the heating duration of the heating assembly 30 can be realized by controlling the opening and closing of the switch circuit 42, so, in one embodiment, the second time window includes a heating period and a non-heating period; The method also includes the steps of:

During the heating period, the switch circuit 42 is turned on, so that the heating assembly 30 is electrically heated, and the switching circuit 42 is connected in series to the circuit where the power supply 50 supplies power to the heating assembly 30; the length of the heating period is the first described in the embodiment of the application The heating duration of the heating component 30 in the second time window. For example, taking the circuit shown in FIG. 1 as an example, during the heating period, the control switch circuit 42 is turned on. At this time, the power supply 50 supplies power to the heating component 30 through the switch circuit 42, and the heating component 30 is electrically heated to provide energy, for example, heating The component 30 may be a resistance heating wire. When the resistance heating wire has a current passing through it, the electric energy is converted into heat energy, which can atomize the material to be atomized that it contacts.

Considering that if the operating voltage and operating current parameters of the heating assembly 30 are not working, the accuracy of calculating the heating power of the heating assembly 30 in each second time window will be reduced, thereby affecting the accuracy of constant power control. Therefore, in During the heating period, the above-mentioned step of acquiring the working electrical parameters of the heating assembly 30 in each second time window is performed.

The circuit shown in Figure 1 is used to illustrate the process of obtaining the working parameters. Taking the first second time window as an example, the heating element 30 works when the switch circuit 42 is turned on. At this time, the voltage analog-to-digital conversion module 46 passes through the voltage sampling circuit. 22 to obtain the working voltage U _t1 of the heating assembly 30 , and at the same time, the current analog-to-digital conversion module 48 collects the working current I _t1 of the heating assembly 30 through the current sampling circuit 24 .

By only sampling the working electrical parameters such as working voltage and working current of the heating component 30 during heating, in order to truly understand the heating condition of the heating component 30 in the second time window, and provide accurate data basis for subsequent constant power control adjustment.

During the non-heating period, the switch circuit 42 is turned off, so that the heating component 30 loses power and stops heating. The time length of the non-heating period is the time length during which the heating component 30 does not heat in the second time window in the embodiment of the present application. Through the method steps described in other embodiments of the present application, the heating period and the non-heating period in each second time window can be determined.

Considering that there is no need to acquire sampling data during the non-heating period, and the processor and other execution subjects are idle, the calculation of heating power can be performed. Therefore, in the non-heating period, the above-mentioned calculation of the heating component in each second time window is performed according to the working electrical parameters in each second time window. Heating power steps within the second time window. For example, with respect to the operating voltage U _t1 and operating current I _t1 acquired in the first second time window above, the heating power P _t1 =U _t1 *I _t1 in the first second time window can be calculated. The rest of the heating control and working parameter sampling in the heating period in the second time window, as well as the heating stop control in the non-heating period and the calculation of the heating power in the current window can be realized by referring to the above description, and will not be repeated.

Specifically, the control switch circuit is opened to work, the power supply supplies power to the heating component, the sampling circuit collects the working voltage U _tx and the working current I _tx of the heating component when it is heated in the xth second time window, and then the control switch circuit is closed, and the heating The component stops heating, and at this time, the heating power and the supplied energy in the xth second time window can be determined according to U _tx and I _tx .

Wherein, the acquisition of the working electrical parameters of the heating components sampled in each second time window during heating may be realized by relying on the sampling circuit. For example, small-sized chip-type voltage sensors and current sensors are used to realize acquisition.

In one embodiment, the heating duration of the heating component in each second time window, that is, the duration of the heating period is greater than the maximum sampling time. Ensure that the voltage and current parameters of the heating component can be accurately sampled when it is working. For example, if the maximum sampling time is t _ADC , then the heating duration in the first n-1 second time windows is controlled to be not less than t _ADC . Based on this, the time length of each second time window is also greater than t _ADC and on this basis, the first time window is divided into as many second time windows as possible, so as to improve the constant power output accuracy.

In one of the embodiments, according to the heating power in the x-1th second time window and the target energy in the first time window, the step S600 of adjusting the heating duration of the heating component in the xth second time window includes :

S620: If it is judged that the energy consumption in the x-1th second time window is too small according to the heating power in the x-1th second time window and the target energy in the first time window, increase the heating component in the xth The heating duration in the second time window, and when it is determined that the energy consumption in the x-1th second time window is too large, reduce the heating duration of the heating component in the xth second time window.

Among them, to determine whether the energy consumption in the x-1th second time window is too large or too small, the remaining consumed energy determined according to the actual energy in the x-1th second time window can be evenly distributed in the remaining time It can be judged by the degree of deviation between the power required for heating and the average power required to provide the target energy within the first time window. For example, a deviation range value can be set. Small, if you continue to heat with this energy supply standard, you can’t meet the target energy requirement. Therefore, increase the heating time in the xth second time window to increase the energy consumption in the next window. Similarly, if it exceeds the range limit value, it means that the energy provided by the previous heating is too large. If the heating is continued with this energy supply standard, the total energy far exceeding the target energy will be provided in the first time window. Therefore, in the xth second time window By reducing the heating time, the energy consumption in the next window is reduced, and the total energy provided by the heating component in the first time window is stabilized at the target energy.

In one of the embodiments, if it is determined according to the heating power in the x-1th second time window and the target energy in the first time window that the energy consumption in the x-1th second time window is too small, Increase the heating duration of the heating component in the xth second time window, and reduce the heating time of the heating component in the xth second time window when it is determined that the energy consumption in the x-1th second time window is too high The step S620 of heating duration in the window includes:

According to the heating power in the first x-1 second time windows in the first time window, the heating duration in each second time window and the target energy in the first time window, determine the remaining energy to be released in the first time window value;

与第一时间窗口的时间长度T，计算第一时间窗口的剩余待运行时间t _left(x-1)； Sum of times according to the first x-1 second time windows

Calculate the remaining running time t _left(x-1) of the first time window with the time length T of the first time window;

According to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window and the remaining running time t _left(x-1) to determine the heating power in the x-1th second time window When the energy consumption is too small, increase the heating duration of the heating element in the xth second time window, and when it is judged to be too large, reduce the heating duration of the heating element in the xth second time window. The increase and decrease of the heating duration mentioned here are relative to the heating duration in the x-1th second time window.

In order to make the energy release more uniform, it is hoped that the energy released by the heating component in each second time window is constant. When the time window is fixed, it is expected that the actual average power in each window is substantially constant. Therefore, in one of the embodiments, the x-th is determined according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window, and the remaining time to run t _left(x-1). - If the energy consumption in 1 second time window is too small, increase the heating duration of the heating component in the xth second time window; The heating duration steps include:

For the first n-1 second time windows:

根据第一时间窗口内剩余待释放的能量值E _left(x-1)和剩余待运行时间t _left(x-1)，计算第一时间窗口内的剩余平均功率

Available expressions

Calculate the remaining average power in the first time window according to the remaining energy value E _left(x-1) to be released and the remaining running time t _left(x-1) in the first time window

计算加热组件在第x个第二时间窗口内的加热时长t _xA，并控制加热组件在第x个第二时间窗口内工作t _xA； According to the heating power P _t(x-1) in the x-1th second time window, the time length (t _xA +t _xB ) of the xth second time window and the remaining average power in the first time window, Available expressions

Calculate the heating duration t _xA of the heating component in the xth second time window, and control the heating component to work t _xA in the xth second time window;

Wherein, t _xB is the length of time during which the heating component stops heating in the xth second time window. P _t(x-1) refers to the heating power of the heating component when the x-1th second time window is completed. E _left(x-1) represents the remaining energy to be released from the target energy after running the time t x _-1 of the x-1th second time window.

When the energy consumption of the current second time window is too small, increase the heating duration of the next second time window to increase the energy consumption value; when the energy consumption of the current second time window is too high, reduce the heating time of the next second time window The heating time is used to reduce the energy consumption value, so as to achieve constant power and precise output.

In one of the embodiments, the x-1th is determined according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window, and the remaining time to run t _left(x-1). If the energy consumption in the xth second time window is too small, increase the heating duration of the heating element in the xth second time window; if it is judged to be too large, reduce the heating of the heating element in the xth second time window The duration steps include:

For the nth second time window:

If the product of the heating power P _t(n-1) in the n-1th second time window and the remaining operating time t _left(n-1) is greater than or equal to the remaining energy value E _left to be released in the first time window _(n-1) , then it is determined that the heating duration in the nth second time window is that the heating component works with the heating power in the n-1th second time window and provides The time E _left(n-1) /P _t(n-1) required for the remaining energy value to be released;

For the nth second time window, if the product of the heating power P _t(n-1) in the n-1th second time window and the remaining operating time t _left(n-1) is less than that in the first time window If the remaining energy value E _left(n-1) to be released is determined, the heating duration in the nth second time window is determined as t _left(n-1) . Wherein, the nth second time window refers to the last second time window within the first time window, and energy compensation can be performed.

In one embodiment, the time lengths of the second time windows are equal. When the time lengths of the second time windows are the same, the working electrical parameters of the sampling heating components can also be fixed at the beginning of each second time window to start sampling, reducing the requirements on the controller and reducing the cost. Such division methods can also reduce the difficulty of calculation. For example, define an integer g (the number g _x of the second time window in each first time window can be a different integer), and t _xA +t _xB can be a fixed length, that is The time length of the second time window is equal, and g _x satisfies the following formula: (t _xA +t _xB )*g _x ＝t _left(x-1) , g _x means after running the x-1th second time window In this way, the remaining running time t _left(x-1) can be obtained quickly. The application required for the operation is reduced, so as to divide as many second time windows as possible to improve the accuracy.

Taking the control circuit shown in FIG. 2 as an example, in each second time window, step A is first performed: open the switch circuit 42, the power supply 50 supplies power to the heating component 30, and the heating component 30 heats up to release energy. The voltage analog-to-digital conversion module 46 collects the working voltage of the heating assembly 30 through the voltage sampling circuit 22 , and the current analog-to-digital conversion module 48 collects the working current of the heating assembly 30 through the current sampling circuit 24 .

Then after step A is executed, step B is executed: close the switch circuit 42, control the heating assembly 30 to stop heating, and complete the heating control and stop heating control of the heating assembly 30 in a second time window; then according to the operating voltage and operating current The heating power of the heating component 30 within the current second time window can be calculated.

The control method provided by the embodiment of this application, as shown in Figure 4, first defines a first time window T (for the atomization device, the first time window can be 8 milliseconds or 10 milliseconds), and the constant power requires the output target power It is P (for example, 6.5W) so that the energy output in each first time window is stable at P*T. At this time, it can be considered as an ideal constant power output, and the closer the actual output energy is to P*T, Then it can be considered that the control is more precise.

Based on this, each first time window T can be divided into many small time windows, that is, multiple second time windows, for example, assuming n multiple second time windows t _x , 1≤x≤n, n is A positive integer greater than 1, the duration of these second time windows can be any duration shorter than the first time window T, in each second time window (except for the window tn) through the above method steps, based on the last second time The energy provided in the window determines the heating duration in the next second time window, and the control of the heating duration in each second time window is realized by performing the above steps A and B.

In order to better illustrate the implementation process of the embodiment of the present application, the circuit shown in Figure 1 is taken as an example here, and the power-time diagram shown in Figure 4 is used to describe the steps of the above method, but the description here does not apply The actual scope of protection is limited.

For _the first second time window t ₁ , step A is executed within the heating period t _1A , the heating component is electrically heated to provide energy, and the working voltage U _t1 and Working current I _t1 , when the non-heating period t _1B in the first second time window t ₁ starts, the control switch circuit is closed, and the heating component stops heating. At this time, the working voltage U _t1 and working current I _t1 is calculated to obtain the heating power P _t1 in the first second time window t ₁ , and then the energy provided in t ₁ can be calculated as P _t1 *t _1A ; it can be determined according to the target energy P*T and P _t1 *t _1A The remaining amount of energy that needs to be provided can also be determined as T-(t _1A +t _1B ) the remaining working time. If it is desired to balance the energy provided by the heating element in each second time window, the remaining average power of (P*TP _t1 *t _1A )/[T-(t _1A +t _1B )] can be used as the second second The average power of the second time window is used to constrain the duration of the heating period t _2A in the second second time window, as shown in Figure 4, based on the configured second time window t ₂ , on the basis of determining t _2A , further Determine the duration of the non-heating period t _2B in the second second time window, and execute the above step A during the time period t _2A , and execute step B during the time period t _2B .

By analogy, repeat the above process for the third second time window _t3 to the n-1th second time window _tn-1 , to realize the second second time window to the n-1th second time window As shown in Figure 4, the control of the heating duration in the previous second time window is based on reducing the heating duration of the current second time window to constrain the total heating time of the heating components in the first time window The output energy is based on the low energy provided in the previous second time window, and the total output energy of the heating component in the first time window is restricted by increasing the heating duration of the current second time window.

For the last second time window t _n , according to the difference between the energy provided by the previous n-1 windows and the target energy, the amount of energy that still needs to be provided in the last window can be determined. If in the nth second time window t Keep the heating power P _t(n-1) of the n-1th window in n for heating for t _n time, and the energy provided by it is greater than the remaining energy value to be released, which means that the heating component does not _need to last for t _n time period The work can achieve the purpose of providing the target energy within the first time period. At this time, according to dividing the remaining energy E _left(n-1) to be released when the n-1th second time window is completed by the nth -The heating power P _t(n-1) of 1 window, obtain the heating period t _nA in the nth second time window t _n , and execute the above step A in the t _nA time period, at t _nB= t _n Execute step B for a time period of -t _nA.

Similarly, if the heating power P _t(n-1) of the n-1th window is maintained in the nth second time window _tn for _tn -time heating, the energy it provides is still less than the remaining energy to be released value, in order to provide the total energy infinitely close to the target energy in the first time window, control the heating component to continue heating t _n in the second time window t _n , that is, execute the above step A in the t _n time period. The t _n window is the last small time window in the first time window T, which can be understood as an energy compensation time window, and is used to compensate and adjust the total energy released by the heating component in the first time window.

As shown in Figure 4, by adjusting the heating duration of the heating element in each second time window, the energy provided in the second to xth second time windows is adjusted to ensure that the heating element is not affected by temperature during the working process. When factors affect the power change (there are differences between P _t1 , P _t2 , ... P _tn as shown in Figure 4), the total energy released by the heating component in the first time window T tends to the target energy P*T, from From the perspective of the working time dimension of the heating component, within each first time window T, the energy value that is stable at the target energy can be released, and the heating is stable. For the case where the time lengths of the defined first time windows are consistent, the average power in each first time window also tends to be consistent, realizing constant power precise control.

It should be understood that although the various steps in the flow charts of FIGS. 2-3 are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in FIGS. 2-3 may include multiple steps or stages. These steps or stages are not necessarily executed at the same time, but may be executed at different times. The steps or stages The execution sequence is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

A heating control device, as shown in Figure 5, the device comprises:

The heating component working parameter acquisition module 2 is used to acquire the working electrical parameters of the heating component in each second time window in each configured first time window; the first time window includes at least two second time windows;

The small window heating power calculation module 4 is used to calculate the heating power of the heating assembly in each second time window according to the working electrical parameters in each second time window;

The small window heating power adjustment module 6 is used to adjust the heating duration of the heating component in the xth second time window according to the heating power in the x-1th second time window and the target energy in the first time window, Make the total energy released in the first time window tend to the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

For specific limitations on the heating control device, reference may be made to the above-mentioned limitations on the heating control method, which will not be repeated here. Each module in the above-mentioned heating control device can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation. The heating control device may also include other functional modules and units to execute other steps in the above method embodiments and achieve corresponding beneficial effects, which will not be repeated here.

A kind of heating control circuit, as shown in Figure 1, this circuit comprises:

The sampling circuit 20 is used to connect the heating component 30, and is used to sample the working electrical parameters of the heating component 30 in each second time window in each configured first time window; the first time window includes at least two second time window;

The control circuit 40 is connected to the sampling circuit 20 and is used to connect to the heating component 30, and is used to execute the steps of the above-mentioned heating control method, so that the total energy released in the first time window tends to the target energy, thereby realizing constant power output control. For details, refer to the description in the foregoing method embodiments.

In one of the embodiments, the operating electrical parameters include the operating voltage and operating current of the heating group 30; the control circuit includes a switch circuit 42 and a processor 44, and the sampling circuit 20 includes a voltage sampling circuit 22 and a current sampling circuit 24;

The input end of the switch circuit 42 is used to connect the first end of the power supply 50, and the output end of the switch circuit 42 is used to connect the first end of the heating assembly 30;

The input end of the voltage sampling circuit 22 is used to connect the first end of the heating assembly 30, and the output end of the voltage sampling circuit 22 is connected to the processor 44 for sampling the working voltage of the heating assembly 30 when the switch circuit 42 is closed;

The current sampling circuit 24 is used to be connected in series between the second end of the heating assembly 30 and the second end of the power supply 50, and is used to sample the working current of the heating assembly 30 when the switch circuit 42 is closed;

The processor 44 is used to execute the steps of the above method;

Wherein, the processor 44 is used to calculate the heating power of the heating component 30 in each second time window according to the working current and working voltage of the heating component 30 in each second time window;

The processor 44 is used to control the closing time of the switch circuit in the xth second time window to adjust the heating time of the heating component 30 in the xth second time window.

When the processor 44 controls the switch circuit 42 to close, the power supply 50 supplies power to the heating component 30 , and the heating component 30 works to heat, and releases energy during heating. When the processor 44 controls the switch circuit 42 to be disconnected, the heating component 30 is powered off and does not work. When the processor 44 executes the above method steps, the adjustment of the heating duration of the heating component 30 in the second time window is based on this principle. Those skilled in the art It can be understood in combination with the descriptions in the foregoing method embodiments, and details are not repeated here.

Compared with the control circuit for time-sharing acquisition of voltage and resistance given in the exemplary technology, the circuit in this application that uses sampling of the working current of the heating component 30 does not need to consider the need to carry out when the heating component 30 is controlled to stop heating. sampling. In each second time window, the heating time of the heating component 30 is basically greater than the maximum sampling time t _ADC , so as many second time windows as possible can be divided into as many second time windows as possible. Compared with the traditional PWM circuit, the precision can be higher.

At present, the heating voltage of the atomization device used to atomize herb materials is mostly about 3V, and the heating current is mostly about 3A. It is hoped that the constant power output will be 6.5W, and the ratio of the heating time in one cycle to the entire heating cycle is about 60%. If the heating duration of each second time window is defined as 60us, the duration of each second time window can be selected as 100us. For the time period with the length of the first time window being 10 ms, 100 windows can be divided, but if it is the PWM circuit given in the exemplary technology, it is impossible to divide so many time windows, that is, the control circuit provided by this application , its constant power output control accuracy is higher.

In one embodiment, a controller is provided. The controller may be a server, and its internal structure may be as shown in FIG. 6 . The controller includes a processor, memory and network interface connected by a system bus. Among them, the processor of the controller is used to provide calculation and control capabilities. The memory of the controller includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer readable storage instructions and a database. The internal memory provides an environment for the execution of the operating system and computer-readable instructions stored in the non-volatile storage medium. The database of the controller is used to store the time length data of the first time window and the time length data of each second time window. The network interface of the controller is used to communicate with external terminals through network connection. When the computer-readable storage instructions are executed by the processor, a heating control method is realized.

Those skilled in the art can understand that the structure shown in Figure 6 is only a block diagram of a part of the structure related to the solution of this application, and does not constitute a limitation on the controller to which the solution of this application is applied. The specific controller can be More or fewer components than shown in the figures may be included, or some components may be combined, or have a different arrangement of components. The controller can also be a single-chip microcomputer, a microprocessor, etc., and can also include analog-to-digital conversion modules 46 and 48, etc. in addition to computing memory chips, for data acquisition.

In one embodiment, a controller is provided, including a memory and one or more processors, the memory stores computer-readable storage instructions, the controller is used to connect the heating assembly, and the computer-readable instructions are read by the one or more processors When executing, make one or more processors execute the steps shown in Figure 2:

For each first time window configured:

S200: Obtain the working electrical parameters of the heating component in each second time window; the first time window includes at least two second time windows;

S400: Calculate the heating power of the heating element in each second time window according to the working electrical parameters in each second time window;

S600: According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the energy released in the first time window The total energy tends to the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

In one embodiment, the computer readable instructions, when executed by one or more processors, cause the one or more processors to further perform the following steps:

During the heating period, the switch circuit is turned on, so that the heating component is electrically heated, and the switch circuit is connected in series to the circuit where the power supply supplies power to the heating component;

During the non-heating period, the switch circuit is turned off, so that the heating component loses power and stops heating;

During the heating period, perform the above-mentioned step of obtaining the working electrical parameters of the heating component within each second time window;

In the non-heating stage, the above-mentioned step of calculating the heating power of the heating assembly in each second time window according to the operating electrical parameters in each second time window is performed.

By only sampling the working electrical parameters such as voltage and current when the heating component is heated, it is possible to truly understand the heating condition of the heating component in the second time window, and to provide accurate data basis for subsequent constant power control adjustments.

In one embodiment, the computer readable instructions, when executed by one or more processors, cause the one or more processors to further perform the following steps:

S620: If it is judged that the energy consumption in the x-1th second time window is too small according to the heating power in the x-1th second time window and the target energy in the first time window, increase the heating component in the xth The heating duration in the second time window, and when it is determined that the energy consumption in the x-1th second time window is too large, reduce the heating duration of the heating component in the xth second time window.

In one embodiment, the computer readable instructions, when executed by one or more processors, cause the one or more processors to further perform the following steps:

According to the heating power in the first x-1 second time windows in the first time window, the heating duration in each second time window and the target energy in the first time window, determine the remaining energy to be released in the first time window value;

与第一时间窗口的时间长度T，计算第一时间窗口的剩余待运行时间t _left(x-1)； Sum of times according to the first x-1 second time windows

Calculate the remaining running time t _left(x-1) of the first time window with the time length T of the first time window;

When it is judged that the energy consumption in the x-1th second time window is too small according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window and the remaining time to run, Increase the heating duration of the heating element in the xth second time window, and reduce the heating duration of the heating element in the xth second time window if it is judged to be too large.

In one embodiment, the computer readable instructions, when executed by one or more processors, cause the one or more processors to further perform the following steps:

For the first n-1 second time windows:

根据第一时间窗口内剩余待释放的能量值E _left(x-1)和剩余待运行时间t _left(x-1)，计算第一时间窗口内的剩余平均功率

use expression

Calculate the remaining average power in the first time window according to the remaining energy value E _left(x-1) to be released and the remaining running time t _left(x-1) in the first time window

计算加热组件在第x个第二时间窗口内的加热时长t _xA，并控制加热组件在第x个第二时间窗口内工作t _xA； According to the heating power P _t(x-1) in the x-1th second time window, the time length of the xth second time window (t _xA +t _xB ) and the remaining average power utilization in the first time window expression

Calculate the heating duration t _xA of the heating component in the xth second time window, and control the heating component to work t _xA in the xth second time window;

Wherein, t _xB is the length of time during which the heating component stops heating in the xth second time window. P _t(x-1) refers to the heating power of the heating component when the x-1th second time window is completed. E _left(x-1) represents the remaining energy to be released from the target energy after running the time t x _-1 of the x-1th second time window.

In one embodiment, the computer readable instructions, when executed by one or more processors, cause the one or more processors to further perform the following steps:

For the nth second time window, if the product of the heating power P _t(n-1) in the n-1th second time window and the remaining operating time t _left(n-1) is greater than or equal to the first time window The remaining energy value E _left(n-1) to be released in the nth second time window is determined as the heating component working with the heating power in the nth second time window And provide the time E _left(n-1) /P _t(n-1) required for the remaining energy value to be released in the first time window;

For the nth second time window, if the product of the heating power P _t(n-1) in the n-1th second time window and the remaining operating time t _left(n-1) is less than that in the first time window If the remaining energy value E _left(n-1) to be released is determined, the heating duration in the nth second time window is determined as t _left(n-1) .

In one embodiment, one or more non-transitory computer-readable storage media storing computer-readable instructions that, when executed by one or more processors, cause the one or more processors to Perform the following steps:

For each first time window configured:

S200: Obtain the working electrical parameters of the heating component in each second time window; the first time window includes at least two second time windows;

S400: Calculate the heating power of the heating element in each second time window according to the working electrical parameters in each second time window;

S600: According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window so that the energy released in the first time window The total energy tends to the target energy;

Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing related hardware through computer-readable storage instructions, and the computer-readable storage instructions can be stored in a non-volatile When the computer-readable storage instructions are executed, the computer-readable storage instructions may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (Read-Oxly Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (Raxdom Access Memory, RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as Static Raxdom Access Memory (SRAM) or Dynamic Random Access Memory (Dyxamic Raxdom Access Memory, DRAM).

An atomization device, as shown in FIG. 7 , includes: a liquid storage chamber 100 for storing a material to be atomized 900; a heating assembly 30 for atomizing the material to be atomized 900 in the liquid storage chamber 100; and the above-mentioned The heating control circuit 300.

The material to be atomized 900 may be an aerosol, for example, spices, herbs and the like. It can also be a lyosol, such as essential oils and the like. For the interpretation of each component in the atomizing device, refer to the description in the above embodiments, and details are not repeated here. For the atomization device equipped with the above-mentioned heating control circuit 300, when it is working, the heating component 30 can realize that the output power in the first time window T of each configuration tends to be consistent under the control of the heating control circuit 300, and through T Divide a plurality of second time windows to precisely control the output power of the heating component 30 in each second time window to be consistent, so as to improve the stability of the atomization power of the atomization device and improve the atomization effect of the atomization device .

In the description of this specification, descriptions referring to the terms "some embodiments", "other embodiments", "ideal embodiments" and the like mean that specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in this specification. In at least one embodiment or example of the invention. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above-mentioned embodiments only represent several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (14)

A heating control method comprising: For each first time window configured: Obtaining the working electrical parameters of the heating assembly in each second time window; the first time window includes at least two of the second time windows; the working electrical parameters include working voltage and working current; calculating the heating power of the heating element in each second time window according to the operating electrical parameters in each second time window; and According to the heating power in the x-1th second time window and the target energy in the first time window, adjust the heating duration of the heating component in the xth second time window, so that the first time The total energy released within the window tends towards the target energy; Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window. The method according to claim 1, wherein the second time window includes a heating period and a non-heating period; the method further comprises the steps of: During the heating period, the switch circuit is turned on to enable the heating component to be electrically heated, and the switch circuit is connected in series to the circuit where the power supply supplies power to the heating component; During the non-heating period, the switching circuit is closed, so that the heating component is de-energized and stops heating; During the heating period, performing the step of acquiring the operating electrical parameters of the heating element within each second time window; and In the non-heating phase, the step of calculating the heating power of the heating assembly in each second time window according to the operating electrical parameters in each second time window is performed. The method according to claim 2, characterized in that the duration of the heating period in each second time window is greater than the maximum sampling time. The method according to any one of claims 1-3, wherein the heating power is adjusted according to the heating power in the x-1th second time window and the target energy in the first time window. The steps for the heating duration of the component in the xth second time window include: If it is judged that the energy consumption in the x-1th second time window is too small according to the heating power in the x-1th second time window and the target energy in the first time window, increase the heating component in the first time window The heating duration in the x second time window, and when it is determined that the energy consumption in the x-1th second time window is too large, reduce the heating duration of the heating component in the xth second time window. The method according to claim 4, characterized in that if the x-1th second time is determined according to the heating power in the x-1th second time window and the target energy in the first time window If the energy consumption in the window is too small, increase the heating duration of the heating component in the xth second time window, and reduce the heating when it is determined that the energy consumption in the x-1th second time window is too high The steps for the heating duration of the component in the xth second time window include: Determine the first The remaining energy value to be released within the time window; Calculate the remaining time to run of the first time window according to the time sum of the first x-1 second time windows and the time length of the first time window; and Determine the deviation of energy consumption in the x-1th second time window according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window and the remaining time to run When it is small, increase the heating duration of the heating component in the xth second time window, and when it is judged to be too large, decrease the heating duration of the heating component in the xth second time window. The method according to claim 5, characterized in that, according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window and the remaining running time If it is judged that the energy consumption in the x-1th second time window is too small, increase the heating duration of the heating component in the xth second time window; The steps of the heating duration in the x second time windows include: For the first n-1 second time windows: calculating a remaining average power within the first time window based on the remaining energy value to be released within the first time window and the remaining time to run; and According to the heating power in the x-1th second time window, the time length of the xth second time window and the remaining average power in the first time window, calculate the heating component at the xth second time The heating duration in the window, and control the heating component to work on the heating duration in the xth second time window. The method according to claim 5 or 6, characterized in that, according to the heating power in the x-1th second time window, the remaining energy value to be released in the first time window and the remaining energy value to be released If the running time determines that the energy consumption in the x-1th second time window is too small, increase the heating duration of the heating component in the xth second time window; if it is judged to be too large, reduce the heating component The steps of the heating duration in the xth second time window include: For the nth second time window: If the product of the heating power in the n-1th second time window and the remaining to-be-running time is greater than or equal to the remaining energy value to be released in the first time window, then determine the nth second time window The heating duration in is the time required for the heating element to work with the heating power in the n-1th second time window and provide the remaining energy value to be released in the first time window; and For the nth second time window, if the product of the heating power in the n-1th second time window and the remaining to-be-running time is less than the remaining energy value to be released in the first time window, then determine the The time length of the nth second time window is the heating duration in the nth second time window. The method according to claim 1 or 2 or 3 or 5 or 6, characterized in that the time lengths of the second time windows are equal. A heating control device comprising: The heating component working parameter acquisition module is used to acquire the working electrical parameters of the heating component in each second time window in each configured first time window; the first time window includes at least two of the second time windows ; The working electrical parameters include working voltage and working current; The small window heating power calculation module is used to calculate the heating power of the heating element in each second time window according to the working electrical parameters in each second time window; and A small window heating power adjustment module, configured to adjust the heating power of the heating component in the xth second time window according to the heating power in the x-1th second time window and the target energy in the first time window heating duration, so that the total energy released in the first time window tends to the target energy; Wherein, x is a positive integer, and 2≤x≤n, and n is the total number of second time windows in the first time window. A heating control circuit comprising: The sampling circuit is used to connect the heating component, and is used to sample the working electrical parameters of the heating component in each second time window in each configured first time window; the first time window includes at least two of the the second time window; and A control circuit, connected to the sampling circuit, and used to connect to the heating assembly, for performing the steps of the method according to any one of claims 1-8, so that the total energy released within the first time window towards the target energy. The circuit according to claim 10, wherein the operating electrical parameters include the operating voltage and operating current of the heating assembly; the control circuit includes a switch circuit and a processor, and the sampling circuit includes a voltage sampling circuit and a Current sampling circuit; The input end of the switch circuit is used to connect the first end of the power supply, and the output end of the switch circuit is used to connect the first end of the heating assembly; The input terminal of the voltage sampling circuit is used to connect the first terminal of the heating component, the output terminal of the voltage sampling circuit is connected to the processor, and is used to sample the heating component when the switch circuit is closed. Operating Voltage; The current sampling circuit is connected in series between the second end of the heating assembly and the second end of the power supply, and is used to sample the working current of the heating assembly when the switching circuit is closed; The processor is configured to perform the steps of the method according to any one of claims 1-9; Wherein, the processor is used to calculate the heating power of the heating component in each second time window according to the working current and working voltage of the heating component in each second time window; The processor is used to control the closing time of the switch circuit in the xth second time window to adjust the heating time of the heating component in the xth second time window. A controller includes a memory and one or more processors, the memory stores computer-readable instructions that, when executed by the one or more processors, cause the one or more A processor executes the steps of the method according to any one of claims 1 to 8. An atomization device, comprising: The liquid storage chamber is used to store the material to be atomized; a heating element for atomizing the material to be atomized in the liquid storage chamber; and The heating control circuit according to claim 10 or 11. One or more non-transitory computer-readable storage media storing computer-readable instructions that, when executed by one or more processors, cause the one or more processors to perform claim 1 The step of the method described in any one of to 8.

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