CN116349948A

CN116349948A - Heating control method and device, control circuit and atomization device

Info

Publication number: CN116349948A
Application number: CN202111570319.4A
Authority: CN
Inventors: 夏旭敏; 方伟明
Original assignee: Hainan Moore Brothers Technology Co Ltd
Current assignee: Hainan Moore Brothers Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-06-30
Also published as: WO2023115948A1

Abstract

The application relates to a heating control method, a heating control device, a heating control circuit and an atomization device. According to the heating control method, the working time of the 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, heating power of the heating assembly in the current second time window is calculated, heating time of the heating assembly in the next second time window is adjusted based on the heating power in the current second time window and target energy, namely, the heating power of the second time window which is completed currently is overlarge, 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 be balanced, so that total energy released in the first time window tends to the target energy, and constant-power accurate output is realized.

Description

Heating control method and device, control circuit and atomization device

Technical Field

The application relates to the technical field of power control of atomization devices, in particular to a heating control method and device, a control circuit and an atomization device.

Background

Most of the existing atomized products use a constant-power heating method to atomize pollen, spice and other aerosols. The currently used constant power control method generally adopts periodic monitoring of the voltages at two ends of the heating wire and the current flowing through the heating wire to obtain the current power, and if the monitoring is smaller than the target power, the heating is continued; if the power is greater than the target power, heating is stopped until the actual average power is lower than the target power, and heating is resumed. The scheme of heating the heating wire and stopping heating control by monitoring the voltage and the current at two ends of the heating wire is that the output power is too high in certain heating periods.

Disclosure of Invention

Accordingly, it is necessary to provide a heating control method and apparatus, a control circuit, and an atomizing apparatus with high accuracy, in order to solve the problem of poor heating power control accuracy in the conventional technology.

A heating control method, the method comprising:

for each first time window of the configuration:

acquiring working electric parameters of the heating assembly in each second time window; the first time window comprises at least two second time windows; the operating electrical parameters include operating voltage and operating current;

Calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window;

according to the heating power in the x-1 second time window and the target energy in the first time window, adjusting the heating time length of the heating assembly in the x second 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 x is more than or equal to 2 and less than or equal to n, and n is the total number of the second time windows in the first time window.

In one embodiment, the second time window includes a heating period and a non-heating period; the method further comprises the steps of:

in the heating period, a switching circuit is opened to enable the heating assembly to be electrically heated, and the switching circuit is connected in series to a loop of a power supply for supplying power to the heating assembly;

in the non-heating period, the switch circuit is closed, so that the heating component is powered off to stop heating;

executing the step of acquiring the working electric parameters of the heating assembly in each second time window in the heating period;

and in the non-heating stage, executing the step of calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window.

In one embodiment, the heating period duration within each second time window is greater than the maximum sampling time.

In one embodiment, the step of adjusting the heating duration of the heating assembly in the x-th second time window according to the heating power in the x-1 th second time window and the target energy in the first time window comprises:

if the energy consumption in the x-1 second time window is judged to be smaller according to the heating power in the x-1 second time window and the target energy in the first time window, the heating duration of the heating component in the x-1 second time window is increased, and when the energy consumption in the x-1 second time window is judged to be larger, the heating duration of the heating component in the x-1 second time window is reduced.

In one embodiment, if it is determined that the energy consumption in the x-1 th second time window is smaller according to the heating power in the x-1 th second time window and the target energy in the first time window, increasing the heating duration of the heating element in the x-1 th second time window, and when it is determined that the energy consumption in the x-1 th second time window is larger, decreasing the heating duration of the heating element in the x-1 th second time window includes:

Determining the energy value to be released remained in the first time window 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;

calculating the residual time to be operated 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 when the energy consumption in the x-1 second time window is smaller according to the heating power in the x-1 second time window, the energy value to be released in the first time window and the residual time to be operated, the heating time of the heating component in the x second time window is increased, and when the heating time is larger, the heating time of the heating component in the x second time window is reduced.

In one embodiment, when the energy consumption in the x-1 th second time window is determined to be smaller according to the heating power in the x-1 th second time window, the energy value to be released in the first time window and the remaining operation time, the heating duration of the heating component in the x-1 th second time window is increased, and when the heating duration of the heating component in the x-1 th second time window is determined to be larger, the step of reducing the heating duration of the heating component in the x-th second time window comprises:

For the first n-1 second time windows:

calculating the residual average power in the first time window based on the residual energy value to be released and the residual operation time in the first time window;

and calculating the heating time length of the heating component in the x-1 second time window according to the heating power in the x-1 second time window, the time length of the x second time window and the residual average power in the first time window, and controlling the working heating time length of the heating component in the x second time window.

for the nth second time window:

if the product of the heating power in the n-1 second time window and the remaining waiting time is greater than or equal to the energy value remaining to be released in the first time window, determining the heating duration in the n-1 second time window as the time required by the heating component to work with the heating power in the n-1 second time window and providing the energy value remaining to be released in the first time window;

And for the nth second time window, if the product of the heating power in the nth-1 second time window and the residual waiting time is smaller than the residual waiting energy value in the first time window, determining the time length of the nth second time window as the heating time length in the nth second time window.

In one embodiment, the time length of each second time window is equal.

A heating control device, the device comprising:

the heating component working parameter acquisition module is used for acquiring working electric parameters of the heating component in each second time window in each configured first time window; the first time window comprises at least two second time windows; the operating electrical parameters include operating voltage and operating current;

the small window heating power calculation module is used for calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window;

the small window heating power adjusting module is used for adjusting the heating time length of the heating assembly in the x second time window according to the heating power in the x-1 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;

A heating control circuit, the circuit comprising:

the sampling circuit is used for connecting the heating assembly and sampling the working electric parameters of the heating assembly in each second time window in each configured first time window; the first time window comprises at least two second time windows;

and the control circuit is connected with the sampling circuit and is used for connecting the heating assembly and is used for the steps of the method, so that the total energy released in the first time window tends to the target energy.

In one embodiment, the operating electrical parameters include an operating voltage and an operating current of the heating assembly; the control circuit comprises a switch circuit and a processor, and the sampling circuit comprises a voltage sampling circuit and a current sampling circuit;

the input end of the switching circuit is used for being connected with the first end of the power supply, and the output end of the switching circuit is used for being connected with the first end of the heating component;

the input end of the voltage sampling circuit is used for being connected with the first end of the heating component, and the output end of the voltage sampling circuit is connected with the processor and used for sampling the working voltage of the heating component when the switch circuit is closed;

The current sampling circuit is connected in series between the second end of the heating component and the second end of the power supply and is used for sampling the working current of the heating component when the switch circuit is closed;

the processor is used for executing the steps of the method;

the processor is used for calculating the heating power of the heating assembly in each second time window according to the working current and the working voltage of the heating assembly in each second time window;

the processor is used for controlling the closing time length of the switch circuit in the x second time window to adjust the heating time length of the heating assembly in the x second time window.

A controller comprising a memory storing a computer program and a processor for connecting a heating assembly, the processor executing the computer program to perform the steps of the method.

An atomizing device, comprising:

the liquid storage cavity is used for storing the material to be atomized;

the heating component is used for atomizing the material to be atomized in the liquid storage cavity;

the heating control circuit.

A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above method.

The heating control method and device, the control circuit and the atomizing device have at least the following beneficial effects:

According to the heating control method, the working time of the heating assembly is divided into a plurality of first time windows, the constant power output precision is improved by enabling the total power of each first time window to be infinitely close to target energy, specifically, at least two smaller second time windows are divided for each first time window, when the current second time windows are finished, the heating power of the heating assembly in the current second time windows is calculated, then the heating time length of the heating assembly in the next second time window is adjusted based on the heating power in the current second time windows and the target energy, namely, the heating power of the second time window which is finished currently is overlarge, the next second time window can be balanced by reducing the heating power of the heating assembly, and vice versa, if the heating power of the current second time window is too low, the heating power of the heating assembly can be balanced in the next second time window by increasing the heating power of the heating assembly, so that the total energy released in the first time windows tends to the target energy, the heating assembly can be provided with consistent target energy in the plurality of first time windows, the heating assembly can be provided with consistent target energy in the first time windows, and the constant and accurate and stable average power can be realized in the first time windows.

The control circuit, the controller and the atomizing device for executing the heating control method can also provide constant-power accurate output on the whole, stabilize the average heating power of the heating assembly in each first time window, and the atomizing device can provide an atomizing effect with good consistency.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings required for the descriptions of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a heating control circuit in one embodiment;

FIG. 2 is a flow chart of a heating control method in one embodiment;

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

FIG. 4 is a graph of power versus time for heating control over a first time window in one embodiment;

FIG. 5 is a block diagram of a heating control device in one embodiment;

FIG. 6 is a schematic diagram of a portion of the internal architecture of a controller in one embodiment;

Fig. 7 is a schematic view of an atomizer according to an embodiment.

Detailed Description

In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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

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

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "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 objects to be connected.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.

The embodiment of the application provides a heating control method, which can be applied to a heating control circuit shown in fig. 1, where the heating control circuit includes a sampling circuit 20 and a control circuit 40, the sampling circuit 20 collects voltage and current when the heating component 30 works and uploads the voltage and current to the control circuit 40, the control circuit 40 can control heating power of the heating component 30 according to a processing result, for example, the duration of supplying power to the heating component 30 by controlling on/off of a switching circuit 42 in fig. 1 can be determined, so as to adjust the heating power of the heating component 30.

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

for each first time window of the configuration:

s200: acquiring working electric parameters of the heating assembly in each second time window; the first time window comprises at least two second time windows. The heating component can be a heating device such as a heating resistance wire, a heating device or a composite body formed by a plurality of heating devices. The operating electrical parameters may include operating voltage, operating current, etc. parameters of the heating assembly.

S400: and calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window. The calculation is referred to herein as a calculation for the heating power in the second time window obtained when the current second time window has been completed, for example, when the initial time of the first time window is 0, for the second time window with the first time length of t1, the heating power in the first second time window is the heating power of the heating element in the time interval of [0 to 0+t1 ]. I.e. calculating the heating power of the heating assembly in the second time window currently completed based on the operating electrical parameters in the second time window currently completed.

S600: and adjusting the heating time length of the heating assembly in the x-1 second time window according to the heating power in the x-1 second time window and the target energy in the first time window, so that the total energy in the first time window tends to the target energy. Wherein x is a positive integer, and x is more than or equal to 2 and less than or equal to n, and n is the total number of the 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 adjacent to each other in time sequence, and the expression is not limited to the practical scope of the present application, and those skilled in the art should reasonably understand the expression of the relationship herein. When the working voltage of the power supply of the heating assembly is fixed, the heating power can be adjusted by adjusting the heating time length of the heating assembly in each second time window.

The target energy refers to the total energy E that is expected to be provided within T for a defined time window T. Taking the heating element as an example of a component integrated in an atomizer, it is desirable to provide a stable output power when the heating element in the atomizer is energized, and the total energy E is provided in T, then it is necessary to stabilize its output power around p=e/T, and if p=6.5W, it is desirable for the atomizer to operate at 6.5W in T to ensure that it provides the target energy E in T. The specific target energy is dependent on the scenario in which the heating assembly is used, and can be selected and configured by the user. By total energy tending towards the target energy is meant that the total energy released during the first time window can be equal to the target energy, or that the difference between the total energy released during the first time window and the target energy is within a given error range.

Specifically, the constant power output precision is improved by dividing the working time of the heating assembly into a plurality of first time windows, enabling the total power of each first time window to be infinitely close to the target energy, specifically, dividing at least two smaller second time windows for each first time window, calculating the heating power of the heating assembly in the current second time window when the current second time window is finished, then adjusting the heating duration of the heating assembly in the next second time window based on the heating power in the current second time window and the target energy, namely, the heating power of the second time window which is finished currently is overlarge, the next second time window can be balanced by reducing the heating power of the heating assembly, and vice versa, 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, so that the total energy released in the first time window tends to the target energy, and the constant power precision output is realized.

For the circuit shown in fig. 1, control of the heating duration of the heating assembly 30 can be achieved by controlling the switching circuit 42 on and off, so in one embodiment, 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 42 is turned on to electrically heat the heating assembly 30, and the switch circuit 42 is connected in series with the circuit of the power supply 50 for supplying power to the heating assembly 30; the time length of the heating period is the heating time length of the heating component 30 in the second time window described in the embodiment of the present application. For example, taking the circuit shown in fig. 1 as an example, during the heating period, the switch circuit 42 is controlled to be turned on, at this time, the power supply 50 supplies power to the heating component 30 through the switch circuit 42, the heating component 30 is electrically heated, and energy is provided, for example, the heating component 30 may be a resistance heating wire, and when the resistance heating wire has an electric current passing through, the electric energy is converted into heat energy, so that the material to be atomized contacted with the resistance heating wire can be atomized.

In consideration of the fact that the accuracy of calculating the heating power of the heating element 30 in each second time window is reduced if the operating voltage and the operating current parameters of the heating element 30 are acquired when the heating element 30 is not operating, thereby affecting the accuracy of constant power control, the step of acquiring the operating electric parameters of the heating element 30 in each second time window is performed during the heating period.

The circuit shown in fig. 1 illustrates the process of acquiring the operating parameter, and taking the 1 st second time window as an example, the heating element 30 operates when the switch circuit 42 is turned on, and the voltage analog-to-digital conversion module 46 acquires the operating voltage U of the heating element 30 through the voltage sampling circuit 22 _t1 At the same time, the current analog-to-digital conversion module 48 collects the working current I of the heating component 30 through the current sampling circuit 24 _t1 。

By sampling only the working electric parameters such as the working voltage and the working current when the heating component 30 heats, the heating component 30 can be truly known in the second time window, and accurate data basis is provided for subsequent constant power control adjustment.

During the non-heating period, the switching circuit 42 is turned off, and the heating assembly 30 is de-energized to stop heating. The time length of the non-heating period is the time length of the heating element 30 in the second time window in the embodiment of the present application. By means of the method steps described in other embodiments of the present application, the heating period and the non-heating period within each second time window may be determined.

In view of the fact that the non-heating period does not need to acquire sampling data, the processor and the like execute main body idle, and operation of heating power can be performed, the step of calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window is executed in the non-heating period. For example, for the operating voltage U obtained in the 1 st second time window _t1 And an operating current I _t1 The heating power P in the 1 st second time window can be calculated _t1 ＝U _t1 *I _t1 . Heating control and operating parameter sampling during heating periods and during non-heating periods within a remaining second time windowThe stopping heating control and the heating power calculation of the current window can be realized by referring to the above description, and the description is omitted.

Specifically, the switching circuit is controlled to be opened for working, the power supply supplies power for the heating component, and the sampling circuit collects working voltage U of the heating component when heating in the x second time window _tx And an operating current I _tx Then the switch circuit is controlled to be closed, the heating component stops heating, and the heating component can stop heating according to U _tx And I _tx The heating power and the supplied energy within the x-th second time window are determined.

The implementation of acquiring the working electrical parameters of the heating assembly sampled in each second time window during heating can be realized by depending on the sampling circuit. For example, the acquisition is realized with a small-sized chip-type voltage sensor, a current sensor, or the like.

In one embodiment, the heating duration of the heating element, i.e. the duration of the heating period, within each second time window is greater than the maximum sampling time. Voltage and current parameters of the heating assembly during operation can be accurately sampled. For example, the maximum sampling time is t _ADC Controlling the heating time length in the first n-1 second time windows 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 the basis, the first time window is divided into a larger number of second time windows as much as possible, so that the constant power output precision is improved.

In one embodiment, the step S600 of adjusting the heating duration of the heating assembly in the x-1 th second time window according to the heating power in the x-1 th second time window and the target energy in the first time window comprises:

s620: if the energy consumption in the x-1 second time window is judged to be smaller according to the heating power in the x-1 second time window and the target energy in the first time window, the heating duration of the heating component in the x-1 second time window is increased, and when the energy consumption in the x-1 second time window is judged to be larger, the heating duration of the heating component in the x-1 second time window is reduced.

The determination of whether the energy consumption in the x-1 th second time window is larger or smaller may be determined according to the deviation degree between the power required for the average distribution of the remaining energy required for the remaining time and the average power required for the target energy supply in the first time window, for example, a deviation range value may be set, if the deviation range value exceeds the upper limit value, the energy supplied during the previous heating is smaller, if the standard supplied by the energy continues to heat, the target energy requirement cannot be met, so that the energy consumption in the next window is increased by increasing the heating duration in the x-th second time window, similarly, if the deviation range value exceeds the lower limit value, the energy supplied during the previous heating is larger, if the standard supplied by the energy continues to heat, the total energy far exceeding the target energy is supplied in the first time window, so that the energy consumption in the next window is reduced by decreasing the heating duration in the x-th second time window, and the heating assembly can supply the target energy in the first time window stably.

In one embodiment, if it is determined that the energy consumption in the x-1 th second time window is smaller according to the heating power in the x-1 th second time window and the target energy in the first time window, the step S620 of increasing the heating duration of the heating element in the x-1 th second time window and reducing the heating duration of the heating element in the x-1 th second time window when it is determined that the energy consumption in the x-1 th second time window is larger includes:

from the sum of the times of the first x-1 second time windows

Calculating the remaining waiting time T of the first time window according to the time length T of x and n which are more than or equal to 2 and the first time window _left(x-1) ；

According to the heating power in the x-1 second time window, the energy value to be released and the time t _left(x-1) And when the energy consumption in the x-1 second time window is judged to be smaller, the heating time of the heating assembly in the x second time window is increased, and when the energy consumption in the x second time window is judged to be larger, the heating time of the heating assembly in the x second time window is reduced. The increasing and decreasing heating periods are referred to herein with respect to the heating periods within the x-1 th second time window.

In order to make the energy release more uniform, i.e. it is desirable that the energy released by the heating assembly is constant for each second time window. At fixed time windows, it is desirable that the actual average power in each window is substantially constant. Therefore, in one embodiment, the energy value remaining to be released in the first time window and the remaining time to run t are based on the heating power in the x-1 th second time window _left(x-1) When the energy consumption in the x-1 second time window is judged to be smaller, the heating duration of the heating component in the x second time window is increased, and when the energy consumption in the x second time window is judged to be larger, the step of reducing the heating duration of the heating component in the x second time window comprises the following steps:

for the first n-1 second time windows:

available expressions

According to the energy value E to be released remaining in the first time window _left(x-1) And remaining standby time t _left(x-1) Calculating the remaining average power in the first time window

According to the heating power P in the x-1 second time window _t(x-1) Length of time of the xth second time window (t _xA +t _xB ) And remaining average power over a first time window, the available expressions

Calculating the heating duration t of the heating assembly in the x second time window _xA And controlling the heating assembly to operate t in the xth second time window _xA ；

Wherein t is _xB For the length of time the heating assembly stops heating within the xth second time window. P (P) _t(x-1) Refers to the heating power of the heating element when the x-1 th second time window is run. E (E) _left(x-1) T after the time of the x-1 second time window is run _x-1 The energy to be released remains from the target energy.

Increasing 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 smaller; and when the energy consumption of the current second time window is larger, reducing the heating time length of the next second time window to reduce the energy consumption value, thereby realizing constant-power accurate output.

In one embodiment, the energy value to be released remaining in the first time window and the remaining time to run t are determined according to the heating power in the x-1 th second time window _left(x-1) When the energy consumption in the x-1 second time window is judged to be smaller, the heating duration of the heating component in the x second time window is increased, and when the energy consumption in the x second time window is judged to be larger, the step of reducing the heating duration of the heating component in the x second time window comprises the following steps:

for the nth second time window:

if the heating power P in the n-1 second time window _t(n-1) And remaining standby time t _left(n-1) The product of (2) is greater than or equal to the energy value E remaining to be released in the first time window _left(n-1) Determining the heating duration in the nth second time window as the time E required for the heating assembly to work with the heating power in the nth-1 second time window and providing the energy value to be released remaining in the first time window _left(n-1) /P _t(n-1) ；

For the nth second time window, if the heating power P in the nth-1 second time window _t(n-1) And remaining standby time t _left(n-1) Is less than the energy value E remaining to be released in the first time window _left(n-1) Then the heating duration in the nth second time window is determined to be t _left(n-1) . The nth second time window refers to the last second time window in the first time window, and energy compensation can be performed.

In one embodiment, the time length of each second time window is equal. When the time lengths of the second time windows are consistent, the working electric parameters of the sampling heating assembly can be fixed at the starting time of each second time window to start sampling, so that the requirement on the controller is reduced, and the cost is reduced. The division can also reduce the calculation difficulty, for example, an integer g (the number g of the second time windows in each first time window is defined _x Different integers can be taken), t _xA +t _xB The fixed length, i.e. the time length of the second time window is equal, g _x The following formula is satisfied: (t) _xA +t _xB )*g _x ＝t _left(x-1) ，g _x Indicating the number of second time windows remaining after the x-1 th second time window has been run, the remaining run time t can be obtained quickly in this way _left(x-1) . The application required for the operation is reduced, so that more second time windows are divided as much as possible, and the accuracy is improved.

Taking the control circuit shown in fig. 2 as an example, step a is performed first in each second time window: the switch circuit 42 is turned on, the power supply 50 supplies power to the heating assembly 30, the heating assembly 30 heats and releases 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.

And then after the step A is executed, executing the step B: the switch circuit 42 is closed, and the heating assembly 30 is controlled to stop heating, so that the heating control and the heating stopping control of the heating assembly 30 in a second time window can be completed; the heating power of the heating assembly 30 within the current second time window may then be calculated based on the operating voltage and the operating current.

In the control method provided in this embodiment of the present application, as shown in fig. 4, a first time window T is defined first (for the atomizing device, the first time window may be 8 ms or 10 ms), and the target power required to be output by constant power is P (for example, 6.5W), so as to achieve that the energy output in each first time window is stabilized at p×t, where the energy output in each first time window may be regarded as ideal constant power output, and the closer the actual output energy is to p×t, the more accurate the control may be regarded as control.

Based on this, each first time window T can be divided into a plurality of time portlets, i.e. a plurality of second time windows, e.g. n plurality of second time windows T _x And x is equal to or greater than 1 and n is a positive integer greater than 1, the duration of the second time windows can be any duration less than the duration of the first time window T, the heating duration in the next second time window is determined based on the energy provided in the last second time window through the steps of the method in each second time window (except tn), and the control of the heating duration in each second time window is realized by executing the step A and the step B.

For better illustrating the implementation process of the embodiment of the present application, the circuit shown in fig. 1 is taken as an example, and the power-time diagram shown in fig. 4 is used to describe the steps of the method, but the description herein does not limit the actual protection scope of the present application.

For the 1 st second time window t ₁ In the heating period t _1A And C, executing the step A, electrically heating the heating assembly, providing energy, and acquiring the sampling circuit in a heating period t _1A Internal sampling of the operating voltage U of the heating element _t1 And an operating current I _t1 At the 1 st second time window t ₁ Period t of non-heating in _1B At the beginning, the control switch circuit is turned off, the heating component stops heating, and the working voltage U obtained before can be used for _t1 And an operating current I _t1 Calculating to obtain the 1 st second time window t ₁ Heating power P in _t1 Then t can be calculated ₁ The energy provided by the inside is P _t1 *t _1A The method comprises the steps of carrying out a first treatment on the surface of the According to the target energy P.T and P _t1 *t _1A The energy which is needed to be provided can be determined, and the residual working time length can be determined as T- (T) _1A +t _1B ). If it is desired to balance the energy provided by the heating element within each second time window, the energy provided by the heating element within each second time window may be equal to (P _t1 *t _1A )/[T-(t _1A +t _1B )]This remaining average power is used as the average power of the 2 nd second time window to constrain the heating period t within the 2 nd second time window _2A As shown in fig. 4, based on the configured second time window t ₂ At determination t _2A Further determining a non-heating period t within a 2 nd second time window _2B And at t _2A Executing the step A in the time period, and at t _2B And (3) executing the step B in the time period.

Similarly, for the 3 rd second time window t ₃ To the n-1 th second time window t _n-1 The above-mentioned process is repeated to realize the control of the heating duration in the 2 nd to n-1 st second time windows, and as shown in fig. 4, the total output energy of the heating assembly in the first time window is restrained by reducing the heating duration of the current second time window when the energy provided in the previous second time window is larger, and the total output energy of the heating assembly in the first time window is restrained by increasing the heating duration of the current second time window when the energy provided in the previous second time window is smaller.

For the last second time window t _n From the difference between the energy provided by the first n-1 windows and the target energy, the energy required by the last window can be determined, if in the nth second time window t _n Maintaining heating power P for the n-1 th window _t(n-1) Go through t _n A long heating period, which provides energy greater than the energy value remaining to be released, indicates that the heating assembly need not be at t _n The continuous operation in the time period can achieve the aim of providing the target energy in the first time period, and the energy E to be released is released according to the surplus energy when the n-1 second time window is completed _left(n-1) Divided by the heating power P of the n-1 th window _t(n-1) Obtaining the nth second time window t _n Heating period t within _nA And at t _nA Executing the step A in the time period, and at t _nB ＝t _n -t _nA Step B is performed during the period of time.

Similarly, if in the nth second time window t _n Maintaining heating power P for the n-1 th window _t(n-1) Go through t _n A long heating time, which provides energy still smaller than the energy value to be released, in order to provide total energy infinitely close to the target energy in the first time window, in the second time window t _n Internal control heating assembly continuously heats t _n I.e. at t _n And executing the step A in the time period. T is the _n The window is the last small time window within the first time window T, which can be understood as an energy compensation time window, and is used for performing compensation adjustment of the total energy released by the heating element within the first time window.

As shown in FIG. 4, the heating time of the heating assembly in each second time window is adjusted to adjust the energy provided in the second to the xth second time windows, so as to ensure that when the power changes due to factors such as temperature during the operation of the heating assembly (P shown in FIG. 4 _t1 、P _t2 、……P _tn The difference exists), the total energy released by the heating component in the first time window T tends to the target energy P, and from the working time dimension of the heating component, the energy value stabilized at the target energy can be released in each first time window T, so that the heating is stable. Under the condition that the time lengths of the defined first time windows are consistent, average power in the first time windows tends to be consistent, and constant power accurate control is realized.

It should be understood that, although the steps in the flowcharts of fig. 2-3 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least a portion of the steps of fig. 2-3 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the steps or stages are performed necessarily occur sequentially, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.

A heating control apparatus, as shown in fig. 5, comprising:

a heating component working parameter obtaining module 2, configured to obtain working electrical parameters of the heating component in each second time window in each configured first time window; the first time window comprises at least two second time windows;

the small window heating power calculation module 4 is used for calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window;

The small window heating power adjusting module 6 is used for adjusting the heating time length of the heating component in the x second time window according to the heating power in the x-1 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;

The specific limitation of the heating control device may be referred to as limitation of the heating control method hereinabove, and will not be described herein. The respective modules in the above-described heating control device may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. Other functional modules and units may be further included in the heating control device to execute other steps in the foregoing method embodiments and achieve corresponding beneficial effects, which are not described herein.

A heating control circuit, as shown in fig. 1, comprising:

sampling circuitry 20 for connecting the heating assembly 30 and for sampling an operational electrical parameter of the heating assembly 30 within each of the second time windows within each of the first time windows configured; the first time window comprises at least two second time windows;

the control circuit 40 is connected to the sampling circuit 20 and is used for connecting the heating assembly 30, and is used for executing the steps of the heating control method, so that the total energy released in the first time window tends to the target energy, and the constant power output control is realized. See in particular the description of the method embodiments above.

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

an input terminal of the switching circuit 42 is connected to a first terminal of the power supply 50, and an output terminal of the switching circuit 42 is connected to a first terminal of the heating assembly 30;

an input of the voltage sampling circuit 22 is connected to a first end of the heating element 30, and an output of the voltage sampling circuit 22 is connected to the processor 44 for sampling the operating voltage of the heating element 30 when the switching circuit 42 is closed;

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

the processor 44 is configured to perform the steps of the method described above;

wherein the processor 44 is configured to calculate the heating power of the heating assembly 30 in each second time window according to the operating current and the operating voltage of the heating assembly 30 in each second time window;

the processor 44 is configured to control the length of time the switching circuit is closed within the x-th second time window to adjust the length of time the heating assembly 30 is heated within the x-th second time window.

When the processor 44 controls the switch circuit 42 to be closed, the power supply 50 supplies power to the heating assembly 30, and the heating assembly 30 works to heat and releases energy during heating. The processor 44 controls the switch circuit 42 to be turned off, and the heating element 30 is turned off and not operated, and when the processor 44 performs the above method steps, the adjustment of the heating duration of the heating element 30 in the second time window is performed based on this principle, which can be understood by those skilled in the art in combination with the description of the above method embodiment, and will not be repeated herein.

In contrast to the control circuit for time-sharing voltage and resistance provided in the exemplary technique, the present application uses a circuit for sampling the operating current of the heating assembly 30, and does not need to consider sampling when controlling the heating assembly 30 to stop heating. The duration of heating by the heating element 30 is controlled to be substantially longer than the maximum sampling time t in each second time window _ADC Therefore, the second time window can be divided into a plurality of time windows as much as possible, and compared with a PWM mode circuit in the prior art, the precision can be higher.

The current atomizing device for atomizing vanilla materials has a heating voltage of about 3V, a heating current of about 3A, and a constant power output of 6.5W, wherein the heating time period in one period exceeds the ratio of the whole heating period by about 60%. If the heating duration of each second time window is defined to be 60us, the duration of each second time window may be selected to be 100us. For a time period with a first time window length of 10ms, 100 windows can be divided, but if the PWM mode circuit is given in the exemplary technology, it is impossible to divide so many time windows, i.e. the control circuit provided by the present application has higher control precision of constant power output.

In one embodiment, a controller is provided, which may be a server, the internal structure of which may be as shown in fig. 6. The controller includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the controller is configured to provide computing and control capabilities. The memory of the controller includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the controller is used for storing time length data of the first time window, time length data of each second time window and the like. The network interface of the controller is used for communicating with an external terminal through network connection. The computer program is executed by a processor to implement a heating control method.

It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the controller to which the present application is applied, and that a particular controller may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components. The controller may also be a single chip microcomputer, microprocessor, etc., and may also include analog to

digital conversion modules

46 and 48, etc., in addition to the computational memory chip, for data acquisition.

In one embodiment, a controller is provided that includes a memory storing a computer program and a processor for interfacing with a heating assembly, the processor executing the computer program to perform the steps shown in fig. 2:

for each first time window of the configuration:

s200: acquiring working electric parameters of the heating assembly in each second time window; the first time window comprises at least two second time windows;

s400: calculating the heating power of the heating assembly in each second time window according to the working electric parameters in each second time window;

s600: according to the heating power in the x-1 second time window and the target energy in the first time window, adjusting the heating time length of the heating assembly in the x second time window, so that the total energy released in the first time window tends to the target energy;

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

By only sampling the working electrical parameters such as voltage, current and the like when the heating component heats, the condition that the heating component heats in the second time window can be truly known, and accurate data basis is provided for follow-up constant power control adjustment.

from the sum of the times of the first x-1 second time windows

for the first n-1 second time windows:

using expressions

According to the heating power P in the x-1 second time window _t(x-1) Length of time of the xth second time window (t _xA +t _xB ) And a remaining average power utilization expression within a first time window

Wherein t is _xB For the length of time the heating assembly stops heating within the xth second time window. P (P) _t(x-1) Means that when the x-1 th second time window is run outThe heating power of the heating assembly. E (E) _left(x-1) T after the time of the x-1 second time window is run _x-1 The energy to be released remains from the target energy.

for the nth second time window, if the heating power P in the nth-1 second time window _t(n-1) And remaining standby time t _left(n-1) The product of (2) is greater than or equal to the energy value E remaining to be released in the first time window _left(n-1) Determining the heating duration in the nth second time window as the time E required for the heating assembly to work with the heating power in the nth-1 second time window and providing the energy value to be released remaining in the first time window _left(n-1) /P _t(n-1) ；

For the nth second time window, if the heating power P in the nth-1 second time window _t(n-1) And remaining standby time t _left(n-1) Is less than the energy value E remaining to be released in the first time window _left(n-1) Then the heating duration in the nth second time window is determined to be t _left(n-1) 。

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:

for each first time window of the configuration:

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. 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 the form of a variety of forms, such as static random access memory (Static Raxdom Access Memory, SRAM) or dynamic random access memory (Dyxamic Raxdom Access Memory, DRAM), and the like.

An atomizing device, as shown in fig. 7, comprising: a liquid storage chamber 100 for storing a material 900 to be atomized; a heating assembly 30 for atomizing the material 900 to be atomized in the liquid storage chamber 100; the heating control circuit 300 described above.

The material 900 to be atomized may be an aerosol, e.g., a spice, herb, etc. But also liquid sols, such as essential oils and the like. The explanation of each component in the atomizing device can be found in the above embodiments, and the description thereof will be omitted. The atomizing device with the heating control circuit 300 can realize that the output power of the heating assembly 30 in each configured first time window T tends to be consistent under the control action of the heating control circuit 300 when in operation, and precisely control the output power of the heating assembly 30 in each second time window to be consistent by dividing a plurality of second time windows in the T, so that the stability of the atomizing power of the atomizing device is improved, and the atomizing effect of the atomizing device is improved.

In the description of the present specification, reference to the terms "some embodiments," "other embodiments," "desired embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included 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 may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A heating control method, characterized in that the method comprises:

for each first time window of the configuration:

acquiring working electric parameters of the heating assembly in each second time window; the first time window comprises at least two second time windows; the working electrical parameters comprise working voltage and working current;

According to the heating power in the x-1 second time window and the target energy in the first time window, adjusting the heating time length of the heating component in the x second time window, so that the total energy released in the first time window tends to the target energy;

wherein x is a positive integer, x is more than or equal to 2 and less than or equal to n, and n is the total number of second time windows in the first time window.

2. The method of claim 1, wherein the second time window comprises a heated period and a non-heated period; the method further comprises the steps of:

in the heating period, a switching circuit is opened to enable the heating component to be electrically heated, and the switching circuit is connected in series to a loop of a power supply for supplying power to the heating component;

closing the switch circuit in the non-heating period to enable the heating assembly to lose electricity and stop heating;

3. The method of claim 2, wherein the heating period duration within each second time window is greater than a maximum sampling time.

4. A method according to any one of claims 1-3, wherein the step of adjusting the heating duration of the heating assembly in the x-1 th second time window based on the heating power in the x-1 th second time window and the target energy in the first time window comprises:

if the heating power in the x-1 second time window and the target energy in the first time window are judged to be smaller, the heating duration of the heating component in the x-1 second time window is increased, and when the heating power in the x-1 second time window is judged to be larger, the heating duration of the heating component in the x-1 second time window is reduced.

5. The method of claim 4, wherein the step of increasing the heating duration of the heating element in the x-1 th second time window if it is determined that the heating power in the x-1 th second time window is smaller than the target energy in the first time window, and decreasing the heating duration of the heating element in the x-1 th second time window if it is determined that the heating power in the x-1 th second time window is larger than the target energy in the first time window comprises:

calculating the residual time to be 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 when the energy consumption in the x-1 second time window is judged to be smaller according to the heating power in the x-1 second time window, the energy value to be released remained in the first time window and the remained operation time, increasing the heating time of the heating component in the x-1 second time window, and when the heating time is judged to be larger, reducing the heating time of the heating component in the x-1 second time window.

6. The method of claim 5, wherein the step of increasing the heating duration of the heating assembly in the x-1 th second time window and decreasing the heating duration of the heating assembly in the x-1 th second time window when the heating power in the x-1 th second time window, the amount of energy remaining to be released in the first time window, and the remaining to-be-run time are determined to be smaller further comprises:

For the first n-1 second time windows:

calculating the residual average power in the first time window based on the residual energy value to be released in the first time window and the residual time to be operated;

and calculating the heating time length of the heating component in the x-1 second time window according to the heating power in the x-1 second time window, the time length of the x second time window and the residual average power in the first time window, and controlling the heating component to work in the x second time window.

7. The method according to claim 5 or 6, wherein the step of increasing the heating time period of the heating assembly in the x-th second time window and decreasing the heating time period of the heating assembly in the x-th second time window when it is determined that the energy consumption in the x-1 th second time window is smaller based on the heating power in the x-1 th second time window, the energy value to be released remaining in the first time window, and the remaining operation time is smaller, comprises:

for the nth second time window:

if the product of the heating power in the n-1 second time window and the remaining waiting time is greater than or equal to the energy value remaining to be released in the first time window, determining that the heating duration in the n-1 second time window is the time required by the heating component to work with the heating power in the n-1 second time window and providing the energy value remaining 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-1) th second time window and the residual waiting time is smaller than the residual waiting energy value in the first time window, determining the time length of the nth second time window as the heating time length in the nth second time window.

8. The method of claim 1 or 2 or 3 or 5 or 6, wherein the time length of each of the second time windows is equal.

9. A heating control device, characterized in that the device comprises:

the heating component working parameter acquisition module is used for acquiring working electric parameters of the heating component in each second time window in each configured first time window; the first time window comprises at least two second time windows; the working electrical parameters comprise working voltage and working current;

the small window heating power adjusting module is used for adjusting the heating time length of the heating assembly in the x second time window according to the heating power in the x-1 second time window and the target energy in the first time window, so that the total energy released in the first time window is driven to the target energy;

10. A heating control circuit, the circuit comprising:

control circuitry coupled to the sampling circuitry and configured to couple to the heating assembly for performing the steps of the method of any of claims 1-8 to cause the total energy released within the first time window to be directed toward the target energy.

11. The circuit of claim 10, wherein the operating electrical parameters include an operating voltage and an operating current of the heating assembly; the control circuit comprises a switch circuit and a processor, and the sampling circuit comprises a voltage sampling circuit and a current sampling circuit;

the current sampling circuit is connected in series between the second end of the heating component and the second end of the power supply and is used for sampling the working current of the heating component when the switching circuit is closed;

the processor being adapted to perform the steps of the method of any one of claims 1-9;

the processor is used for controlling the closing time length of the switch circuit in the x second time window so as to adjust the heating time length of the heating component in the x second time window.

12. A controller comprising a memory storing a computer program, and a processor for connecting a heating assembly, the processor implementing the steps of the method of any one of claims 1 to 8 when the computer program is executed.

13. An atomizing device, comprising:

the liquid storage cavity is used for storing the material to be atomized;

a heating control circuit as claimed in claim 10 or 11.

14. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 8.