CN114376275A - Aerosol generating device, control method and control device thereof, and storage medium - Google Patents
Aerosol generating device, control method and control device thereof, and storage medium Download PDFInfo
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- CN114376275A CN114376275A CN202210044758.XA CN202210044758A CN114376275A CN 114376275 A CN114376275 A CN 114376275A CN 202210044758 A CN202210044758 A CN 202210044758A CN 114376275 A CN114376275 A CN 114376275A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/57—Temperature control
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Abstract
The present application relates to an aerosol generating device, a control method thereof, a control device, and a storage medium. The aerosol generating device comprises: a heating element for heating an aerosol-forming substrate to produce an aerosol; a power source electrically connected to the heating element; the detection assembly is electrically connected with the heating element and the power supply respectively; the control assembly is used for acquiring the electrical parameters of the detection assembly, determining the temperature of the heating element according to a preset corresponding relation, and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range; wherein, the corresponding relation is the corresponding relation between the electrical parameter of the detection component and the temperature of the heating element. The aerosol generating device can accurately detect the temperature and realize reliable temperature control.
Description
Technical Field
The present disclosure relates to the field of atomization technologies, and in particular, to an aerosol generating device, a control method thereof, a control device thereof, and a storage medium.
Background
With the development of atomization technology, aerosol atomization technology has emerged, where atomization is achieved by heating an aerosol-forming substrate by means of a heating element, producing an aerosol. The heating element needs to be maintained at a certain temperature to atomize the aerosol-forming substrate, and therefore the current temperature of the heating element needs to be obtained as feedback, and then heating control is performed based on the current temperature. Therefore, accurate acquisition of the temperature of the heating element is required to achieve reliable operation of the aerosol generating device.
Disclosure of Invention
In view of the above, it is necessary to provide an aerosol generating apparatus capable of accurately acquiring a temperature, a control method thereof, a control apparatus thereof, and a storage medium.
An aerosol-generating device, comprising:
a heating element for heating an aerosol-forming substrate to produce an aerosol;
a power source electrically connected to the heating element;
the detection assembly is electrically connected with the heating element and the power supply respectively;
the control assembly is electrically connected with the detection assembly and used for acquiring the electrical parameters of the detection assembly, determining the temperature of the heating element according to a preset corresponding relation, and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element.
In one embodiment, the detection assembly comprises: a reference resistor and a detection switch;
the first end of the detection switch is electrically connected with the power supply, the second end of the detection switch is electrically connected with the first end of the reference resistor, and the control end of the detection switch is electrically connected with the control component;
a second end of the reference resistor is electrically connected with the heating element; the electrical parameter is the voltage at two ends of the reference resistor;
the control component is used for acquiring a first voltage of a first end of the reference resistor and a second voltage of a second end of the reference resistor, and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation; and the detection switch is also used for controlling the on-off of the detection switch so as to realize the on-off of the detection mode.
In one embodiment, the control assembly comprises:
a power switch, a first end of the power switch being connected to the heating element, a second end of the power switch being electrically connected to the power source;
the controller is respectively electrically connected with the control end of the detection switch, the reference resistor and the control end of the power switch, and is used for acquiring a first voltage at the first end of the reference resistor and a second voltage at the second end of the reference resistor, determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation, and outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature; the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
In one embodiment, the controller is configured to control the detection switch to be turned on and obtain the first voltage and the second voltage to determine the temperature of the heating element when the PWM signal controls the power switch to be in the off phase.
In one embodiment, the correspondence relationship is:
T＝K*V2(V1-V2)+b
wherein T is the temperature of the heating element; k is a preset temperature coefficient; v1 is the first voltage, V2 is the second voltage; b is a preset correction constant.
A method of controlling an aerosol generating device for use in an aerosol generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is electrically connected with the heating element and the power supply respectively;
the control method comprises the following steps:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element;
and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
In one embodiment, the detection assembly comprises a reference resistor, a first end of the reference resistor is electrically connected with the power supply, and a second end of the reference resistor is electrically connected with the heating element; the electrical parameters of the detection component comprise a first voltage at a first end of the reference resistor and a second voltage at a second end of the reference resistor;
the determining the temperature of the heating element according to the preset correspondence includes:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
In one embodiment, the aerosol atomization device further comprises a power switch, wherein a first end of the power switch is connected with the heating element, and a second end of the power switch is electrically connected with the power supply;
the adjusting the power provided by the power supply to the heating element according to the temperature of the heating element and the preset target temperature comprises:
outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature;
wherein the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
In one embodiment, the detection assembly further comprises a detection switch, a first end of the detection switch is electrically connected with the power supply, and a second end of the detection switch is electrically connected with a first end of the reference resistor;
before the electrical parameters of the detection assembly are acquired, the method further comprises the following steps:
judging whether the power switch is in a closing stage or not according to the PWM signal;
and if so, controlling the detection switch to be conducted.
In one embodiment, the correspondence relationship is:
T＝K*V2(V1-V2)+b
wherein T is the temperature of the heating element; k is a preset temperature coefficient; v1 is the first voltage, V2 is the second voltage; b is a preset correction constant.
A control device for an aerosol-generating device for use in an aerosol-generating device, the aerosol-generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is respectively electrically connected with the heating element and the power supply and is used for dividing voltage with the heating element;
the control device includes:
the parameter acquisition module is used for acquiring the electrical parameters of the detection assembly;
the temperature determining module is used for determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element;
and the electric energy adjusting module is used for adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
An aerosol atomizing device, comprising:
a heating element for heating an aerosol-forming substrate to produce an aerosol;
a power source electrically connected to the heating element;
the detection assembly is electrically connected with the heating element and the power supply respectively;
a control assembly comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element;
and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element
And adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
According to the aerosol generating device, the control method, the control device and the storage medium, the detection assembly is electrically connected with the power supply and the heating element, and the resistance value of the heating element is increased when the temperature of the heating element is increased, so that the electrical parameters of the detection assembly electrically connected with the heating element are changed. Therefore, the temperature of the heating element can be determined through the corresponding relation between the electrical parameters of the detection assembly and the temperature of the heating element, and the electric energy provided by the power supply for the heating element is adjusted according to the temperature of the heating element and the preset target temperature, so that the actual temperature of the heating element is kept within the target temperature range, and accurate temperature detection can be realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of the structure of an aerosol generating device in one embodiment;
FIG. 2 is a schematic diagram of an electrical circuit of an aerosol generating device according to another embodiment;
FIG. 3 is a schematic diagram of an electrical circuit of an aerosol generating device according to yet another embodiment;
FIG. 4 is a schematic flow diagram of a method of controlling an aerosol generating device according to one embodiment;
FIG. 5 is a flow chart illustrating a method for controlling an aerosol generating device according to another embodiment
FIG. 6 is a block diagram of a control device of the aerosol generating device in one embodiment;
FIG. 7 is a schematic diagram of the structure of an aerosol generating device in one embodiment;
fig. 8 is a schematic structural diagram of an aerosol generating device in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth 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 present 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 herein to describe various technical features, but these technical features are not limited by these terms. These terms are only used to distinguish one feature from another.
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 is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
As shown in fig. 1, the present embodiment provides an aerosol generating device, which includes a heating element 110, a power source 120, a detection component 130, and a control component 140.
Wherein the heating element 110 is for heating the aerosol-forming substrate to generate an aerosol, the heating element 110 may be a heater, equivalently a resistor; the power source 120 is electrically connected to the heating element 110, and is used for outputting electric energy to the heating element 110 to heat the heating element 110; the detection assembly 130 is electrically connected with the heating element 110 and the power supply 120 respectively; a control component 140 electrically connected to the detection component 130, for obtaining an electrical parameter of the detection component 130, determining the temperature of the heating element 110 according to a preset corresponding relationship, and adjusting the power supplied by the power source 120 to the heating element 110 according to the temperature of the heating element 110 and a preset target temperature, so as to maintain the actual temperature of the heating element 110 within a target temperature range; the corresponding relationship is the corresponding relationship between the electrical parameter of the detecting element 130 and the temperature of the heating element 110.
The detecting element 130 is electrically connected to the power source 120 and the heating element 110, and since the resistance value of the heating element 110 increases when the temperature increases, the electrical parameter of the detecting element 130 electrically connected thereto changes. Therefore, the temperature of the heating element 110 can be determined by the corresponding relationship between the electrical parameter of the detecting component 130 and the temperature of the heating element 110, and the power supplied by the power source 120 to the heating element 110 is adjusted according to the temperature of the heating element 110 and the preset target temperature, so as to maintain the actual temperature of the heating element 110 within the target temperature range.
In one embodiment, the electrical parameter of the detecting element 130 may be a resistance value, a voltage across the two terminals, a power, a current, and the like. In the embodiment of the present application, the voltage across the detecting element 130 is taken as an example for explanation.
In one embodiment, the control component 140 can control the heating temperature of the heating element 110 by controlling the power or duration of the output of the power source 120 to the heating element 110, so as to maintain the heating element 110 at a temperature at which stable atomization of the aerosol can be achieved. It will be appreciated that the power supply 120 also presents another connection path to the heating element 110 through which the power supply 120 powers the heating assembly when detection is not required.
The resistance of the heating element 110 changes with temperature, and as the temperature increases, the resistance of the heating element 110 also increases. The control component 140 can keep the resistance value of the detection component 130 unchanged by limiting the power-on time of the detection component 130, reflect the temperature of the heating element 110 through the voltage across the detection component 130 based on the voltage division principle, and determine the temperature of the heating element 110 according to the preset corresponding relationship between the voltage across the detection component 130 and the preset corresponding relationship.
It should be noted that, in addition to the connection manner of the detection component 130 with the heating element 110 and the power supply 120 shown in fig. 1, the detection component 130 may be disposed between the heating element 110 and the power supply 120, and the detection component 130 may be disposed between the heating element 110 and the ground, that is, any connection manner capable of forming the voltage division structure between the detection component 130 and the heating element may be selected, and is not limited to the connection manner shown in fig. 1.
In the aerosol generating device, the detection component 130 and the heating element 110 are arranged to form a voltage dividing circuit, and since the voltage at the two ends of the detection component 130 depends on the resistance value of the heating element 110 and the resistance value of the detection component 130, when the temperature of the heating element 110 changes, the resistance value also changes, so that the voltage at the two ends of the detection component 130 changes, the temperature of the heating element 110 can be determined according to the corresponding relationship between the voltage at the two ends of the detection component 130 and the temperature of the heating element 110, and then the power provided by the power supply 120 for the heating element 110 is adjusted according to the temperature of the heating element 110 and a preset target temperature, so that the actual temperature of the heating element 110 is kept in a target temperature range, and accurate temperature detection can be realized. In addition, compared with an aerosol generating device adopting a temperature sensor for temperature measurement, the aerosol generating device provided by the application has the advantages that the circuit design is simpler, and the cost is lower; compared with the temperature detection by directly detecting the resistance value of the heating element 110, the temperature detection assembly 130 is not affected by the temperature, so that the measurement precision is higher.
As shown in FIG. 2, in one embodiment, the detection component 130 comprises: a reference resistor RS and a detection switch Q1. A first end of the detection switch Q1 is electrically connected to the power supply 120, a second end of the detection switch Q1 is electrically connected to a first end of the reference resistor RS, and a control end of the detection switch Q1 is electrically connected to the control component 140; a second end of the reference resistance RS is electrically connected to the heating element 110. The control component 140 is configured to obtain a first voltage V1 at a first end of the reference resistor RS and a second voltage V2 at a second end of the reference resistor RS, and determine the temperature of the heating element 110 according to the first voltage V1, the second voltage V2 and the corresponding relationship; and is also used for controlling the detection switch Q1 to be switched on or off to realize the switching on or off of the detection mode.
Wherein, the voltage output by the power supply is VS. When the detection is required, the control component 140 controls the detection switch Q1 to be turned on, at this time, the power supply provides electric energy (i.e., the power supply voltage VS) to the reference resistor RS and the heating element 110 which are connected in series, the control component 140 obtains the voltages at the two ends of the reference resistor RS in the process, i.e., the first voltage V1 and the second voltage V2, and the first voltage V1 is the output voltage of the power supply 120, so that the first voltage V1 is maintained in a relatively stable voltage range, and the second voltage V2 is affected by the resistance change of the heating element 110, and under the condition that the first voltage V1 is not abnormal, the second voltage V2 can be used to represent the resistance of the heating element 110, so that the current temperature of the heating element 110 can be determined through the first voltage V1, the second voltage V2 and the preset corresponding relationship.
In one embodiment, the control module 140 obtains a plurality of sets of the first voltage V1 and the second voltage V2 in the detection mode, and after screening out the maximum value and the minimum value of the first voltage V1 and the second voltage V2, the average values are respectively averaged, and finally, the average value of the first voltage V1 and the average value of the second voltage V2 are used to determine the temperature of the heating element 110, so as to reduce the detection error.
When the detection mode needs to be turned off, the control component 140 controls the detection switch Q1 to be turned off, and the branch of the reference resistor RS is cut off, so that the power supply 120 supplies power to the heating element 110 through the other branch.
In one embodiment, if the magnitude of the internal resistance of the detection switch Q1 is not much different from the magnitude of the resistance of the heating element 110, the detection switch Q1, the reference resistor RS and the heating element form a series voltage divider, when the resistance of the heating element 110 changes, the first voltage V1 also changes suddenly, and at this time, the first voltage V1 and the second voltage V1 are used together to perform temperature detection, so that the accuracy of identification can still be ensured.
In one embodiment, the detection switch Q1 may be an electronic switch such as a triode, a MOS transistor, an IGBT, or the like.
In one embodiment, the electrical parameter of the detecting element 130 may also be a resistance of the reference resistor RS, a power of the reference resistor RS, or a current flowing through the reference resistor RS.
As shown in fig. 3, in one embodiment, the control component 140 includes a power switch Q2 and a controller 141. A first terminal of a power switch Q2 is connected to heating element 110, and a second terminal of power switch Q2 is electrically connected to power supply 120; the controller 141 is electrically connected to the control terminal of the detection switch Q1, the reference resistor RS, and the control terminal of the power switch Q2, and is configured to obtain a first voltage V1 at the first terminal of the reference resistor RS and a second voltage V2 at the second terminal of the reference resistor RS, determine the temperature of the heating element 110 according to the first voltage V1, the second voltage V2, and the corresponding relationship, and output a PWM signal to the power switch Q2 according to the temperature of the heating element 110 and a preset target temperature.
The PWM signal is used to control the power switch Q2 to switch between on and off states according to a cycle to maintain the actual temperature of the heating element 110 within the target temperature interval. The controller 141 can change the output power of the power supply 120 by changing the duty ratio of the PWM signal, thereby adjusting the temperature of the heating element 110, controlling to determine the temperature of the heating element 110 according to the first voltage V1, the second voltage V2 and the corresponding relationship, and adjusting the PWM signal when the temperature of the heating element 110 is lower than a preset target temperature, increasing the output power of the power supply 120, and increasing the temperature of the heating element 110; when the temperature of the heating element 110 is higher than the preset target temperature, the PWM signal is adjusted to reduce the output power of the power supply 120, reduce the temperature of the heating element 110, and achieve accurate temperature control.
In one embodiment, the controller 141 is configured to control the detection switch Q1 to be turned on and obtain the first voltage V1 and the second voltage V2 to determine the temperature of the heating element 110 when the PWM signal controls the power switch Q2 to be in the off phase.
When the power switch Q2 is turned on, the second voltage V2 is pulled up, and detection cannot be achieved, so detection needs to be performed when the power switch Q2 is turned off, and in order not to affect normal atomization, the detection can be achieved by controlling the detection switch Q1 to be turned on when the power switch Q2 is controlled to be in a turn-off stage by a PWM signal.
In one embodiment, the correspondence relationship is:
T＝K*V2(V1-V2)+b
where T is the temperature of the heating element 110; k is a preset temperature coefficient; v1 is a first voltage V1, V2 is a second voltage V2; b is a preset correction constant.
The temperature coefficient K and the correction constant b are preset in a pre-calibration manner, which can be realized in a production stage, a plurality of temperature values of the heating element 110 in the heating process are measured, the first voltage V1 and the second voltage V2 corresponding to each temperature value are recorded, and the temperature coefficient K and the correction constant b are calculated according to the above relation, so that the presetting is realized.
In one embodiment, as shown in figure 4, there is provided a method of controlling an aerosol-generating device for use in an aerosol-generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is respectively electrically connected with the heating element and the power supply;
the control method comprises the following steps:
step 401, acquiring electrical parameters of a detection assembly;
step 402, determining the temperature of the heating element according to a preset corresponding relation; wherein, the corresponding relation is the corresponding relation between the electrical parameter of the detection component and the temperature of the heating element;
step 403, adjusting the power supplied by the power supply to the heating element according to the temperature of the heating element and the preset target temperature, so as to maintain the actual temperature of the heating element within the target temperature range.
In one embodiment, the detection assembly comprises a reference resistor, a first end of the reference resistor is electrically connected with the power supply, and a second end of the reference resistor is electrically connected with the heating element; the voltage at two ends of the detection component comprises a first voltage at a first end of the reference resistor and a second voltage at a second end of the reference resistor;
the determining the temperature of the heating element according to the preset correspondence includes:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
In one embodiment, the aerosol atomization device further comprises a power switch, wherein a first end of the power switch is connected with the heating element, and a second end of the power switch is electrically connected with the power supply;
the electric energy that the temperature according to heating element and predetermine target temperature regulation power provided for heating element includes:
outputting a PWM signal to a power switch according to the temperature of the heating element and a preset target temperature;
wherein the PWM signal is used to control the power switch to switch between the on and off states according to a periodicity such that the actual temperature of the heating element is maintained in the target temperature interval.
As shown in fig. 5, in one embodiment, the detection assembly further includes a detection switch, a first end of the detection switch is electrically connected to the power source, and a second end of the detection switch is electrically connected to a first end of the reference resistor;
before the electrical parameters of the detection component are acquired, the method further comprises the following steps:
and step 501, judging whether the power switch is in a closing stage according to the PWM signal.
And 502, if yes, controlling the detection switch to be conducted.
In step 503, if the power switch is in the on stage, the detection switch is controlled to be turned off.
In one embodiment, the correspondence relationship is:
T＝K*V2(V1-V2)+b
wherein T is the temperature of the heating element; k is a preset temperature coefficient; v1 is a first voltage, V2 is a second voltage; b is a preset correction constant.
Specific limitations on the control method of the aerosol generating device can be found in the above limitations on the aerosol generating device, which are not repeated here.
It should be understood that although the various steps in the flowcharts of fig. 4-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 4-5 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in figure 6, there is provided a control device 600 for an aerosol-generating device for use in an aerosol-generating device, the aerosol-generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is respectively electrically connected with the heating element and the power supply;
the control device includes:
a parameter obtaining module 601, configured to obtain an electrical parameter of the detection component;
a temperature determining module 602, configured to determine a temperature of the heating element according to a preset corresponding relationship; wherein, the corresponding relation is the corresponding relation between the electrical parameter of the detection component and the temperature of the heating element;
the power adjusting module 603 is configured to adjust power supplied by the power supply to the heating element according to the temperature of the heating element and a preset target temperature, so that the actual temperature of the heating element is maintained within a target temperature range.
Specific definitions of the control means of the aerosol nebulization device can be found in the above definitions of the aerosol nebulization device, which are not described in detail here. The modules in the control device of the aerosol atomization device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, there is provided an aerosol atomization device comprising: heating element, power, detection component and control assembly. Wherein the heating element is for heating the aerosol-forming substrate to generate an aerosol; a power source is electrically connected to the heating element; the detection assembly is respectively electrically connected with the heating element and the power supply; a control assembly comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein, the corresponding relation is the corresponding relation between the electrical parameter of the detection component and the temperature of the heating element;
and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and the preset target temperature so as to keep the actual temperature of the heating element within the target temperature range.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature; wherein the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
judging whether the power switch is in a closing stage or not according to the PWM signal;
and if so, controlling the detection switch to be conducted.
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:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein, the corresponding relation is the corresponding relation between the electrical parameter of the detection component and the temperature of the heating element;
and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and the preset target temperature so as to keep the actual temperature of the heating element within the target temperature range.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
In one embodiment, the computer program when executed by the processor further performs the steps of:
outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature; wherein the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
In one embodiment, the computer program when executed by the processor further performs the steps of:
judging whether the power switch is in a closing stage or not according to the PWM signal;
and if so, controlling the detection switch to be conducted.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In one embodiment, as shown in figure 7, the aerosol-generating device may be a heated non-combustible e-cigarette and the aerosol-forming substrate may be a solid aerosol-forming substrate 200, the heating generating the aerosol for inhalation by a user by inserting the solid aerosol-forming substrate 200 into the aerosol-generating device.
In one embodiment, as shown in figure 8, the aerosol-generating device may be for nebulisation using a liquid aerosol-forming substrate, the aerosol-generating device having a reservoir 150 for containing the aerosol-forming substrate therein, the heating element generating an aerosol for inhalation by a user by heating the aerosol-forming substrate in the reservoir.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean 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, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. An aerosol generating device, comprising:
a heating element for heating an aerosol-forming substrate to produce an aerosol;
a power source electrically connected to the heating element;
the detection assembly is electrically connected with the heating element and the power supply respectively;
the control assembly is electrically connected with the detection assembly and used for acquiring the electrical parameters of the detection assembly, determining the temperature of the heating element according to a preset corresponding relation, and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element.
2. An aerosol generating device according to claim 1, wherein the detection assembly comprises: a reference resistor and a detection switch;
the first end of the detection switch is electrically connected with the power supply, the second end of the detection switch is electrically connected with the first end of the reference resistor, and the control end of the detection switch is electrically connected with the control component;
a second end of the reference resistor is electrically connected with the heating element; the electrical parameter is the voltage at two ends of the reference resistor;
the control component is used for acquiring a first voltage of a first end of the reference resistor and a second voltage of a second end of the reference resistor, and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation; and the detection switch is also used for controlling the on-off of the detection switch so as to realize the on-off of the detection mode.
3. An aerosol generating device according to claim 2, wherein the control assembly comprises:
a power switch, a first end of the power switch being connected to the heating element, a second end of the power switch being electrically connected to the power source;
the controller is respectively electrically connected with the control end of the detection switch, the reference resistor and the control end of the power switch, and is used for acquiring a first voltage at the first end of the reference resistor and a second voltage at the second end of the reference resistor, determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation, and outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature; the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
4. An aerosol generating device according to claim 3, wherein the controller is configured to control the detection switch to conduct and obtain the first and second voltages to determine the temperature of the heating element when the PWM signal controls the power switch to be in an off phase.
5. An aerosol generating device according to claim 3, wherein the correspondence is:
T＝K*V2(V1-V2)+b
wherein T is the temperature of the heating element; k is a preset temperature coefficient; v1 is the first voltage, V2 is the second voltage; b is a preset correction constant.
6. A method of controlling an aerosol generating device, for use in an aerosol generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is electrically connected with the heating element and the power supply respectively;
the control method comprises the following steps:
acquiring electrical parameters of the detection assembly;
determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element;
and adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
7. The control method of claim 6, wherein the detection assembly comprises a reference resistor, a first end of the reference resistor being electrically connected to the power source, a second end of the reference resistor being electrically connected to the heating element; the electrical parameters of the detection component comprise a first voltage at a first end of the reference resistor and a second voltage at a second end of the reference resistor;
the determining the temperature of the heating element according to the preset correspondence includes:
and determining the temperature of the heating element according to the first voltage, the second voltage and the corresponding relation.
8. The control method of claim 8, wherein the aerosol atomization device further comprises a power switch, a first end of the power switch is connected to the heating element, and a second end of the power switch is electrically connected to the power supply;
the adjusting the power provided by the power supply to the heating element according to the temperature of the heating element and the preset target temperature comprises:
outputting a PWM signal to the power switch according to the temperature of the heating element and a preset target temperature;
wherein the PWM signal is used for controlling the power switch to switch between an on state and an off state according to the periodicity so as to keep the actual temperature of the heating element in a target temperature interval.
9. The control method of claim 8, wherein the detection assembly further comprises a detection switch, a first terminal of the detection switch being electrically connected to the power source, a second terminal of the detection switch being electrically connected to a first terminal of the reference resistor;
before the electrical parameters of the detection assembly are acquired, the method further comprises the following steps:
judging whether the power switch is in a closing stage or not according to the PWM signal;
and if so, controlling the detection switch to be conducted.
10. The control method according to any one of claims 8 to 9, wherein the correspondence relationship is:
T＝K*V2(V1-V2)+b
wherein T is the temperature of the heating element; k is a preset temperature coefficient; v1 is the first voltage, V2 is the second voltage; b is a preset correction constant.
11. A control device for an aerosol-generating device, for use in an aerosol-generating device comprising a heating element for heating an aerosol-forming substrate to generate an aerosol, a power supply and a detection assembly; the detection assembly is electrically connected with the heating element and the power supply respectively;
the control device includes:
the parameter acquisition module is used for acquiring the electrical parameters of the detection assembly;
the temperature determining module is used for determining the temperature of the heating element according to a preset corresponding relation; wherein the corresponding relationship is the corresponding relationship between the electrical parameter of the detection component and the temperature of the heating element;
and the electric energy adjusting module is used for adjusting the electric energy provided by the power supply for the heating element according to the temperature of the heating element and a preset target temperature so as to keep the actual temperature of the heating element within a target temperature range.
12. An aerosol atomizing device, comprising:
a heating element for heating an aerosol-forming substrate to produce an aerosol;
a power source electrically connected to the heating element;
the detection assembly is electrically connected with the heating element and the power supply respectively;
a control assembly comprising a memory storing a computer program and a processor implementing the steps of the method of any one of claims 6 to 10 when the computer program is executed.
13. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 6 to 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044758.XA CN114376275A (en) | 2022-01-14 | 2022-01-14 | Aerosol generating device, control method and control device thereof, and storage medium |
| PCT/CN2022/133129 WO2023134302A1 (en) | 2022-01-14 | 2022-11-21 | Aerosol generation apparatus, control method and control apparatus therefor, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044758.XA CN114376275A (en) | 2022-01-14 | 2022-01-14 | Aerosol generating device, control method and control device thereof, and storage medium |
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| CN114376275A true CN114376275A (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210044758.XA Pending CN114376275A (en) | 2022-01-14 | 2022-01-14 | Aerosol generating device, control method and control device thereof, and storage medium |
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| CN (1) | CN114376275A (en) |
| WO (1) | WO2023134302A1 (en) |
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