CN115736389A - Heating control method, heating control device, battery pack and electronic atomization device - Google Patents
Heating control method, heating control device, battery pack and electronic atomization device Download PDFInfo
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Abstract
The invention relates to a heating control method and a heating control device of an electronic atomization device, a battery pack and the electronic atomization device. The heating control method of the electronic atomization device comprises the following steps: after a signal inserted into the atomizer is obtained, calculating real-time resistance values of at least two sampling moments of the heating body, wherein the interval between every two adjacent sampling moments is less than preset time; acquiring a temperature control resistance value according to a difference value between real-time resistance values at adjacent sampling moments; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value. According to the heating control method, the heating control device, the electronic atomization device and the computer readable storage medium of the electronic atomization device, the temperature control resistance value of the heating body can be accurately obtained by utilizing the acquired difference value between the real-time resistance values at adjacent sampling moments in various application scenes, so that the heating power of the electronic atomization device can be accurately adjusted by utilizing the temperature control resistance value subsequently.
Description
Technical Field
The invention relates to the technical field of aerosol generating equipment, in particular to a heating control method and a heating control device of an electronic atomization device, a battery pack and the electronic atomization device.
Background
The existing electronic atomizer generally comprises an atomizer and a battery assembly, wherein a heating body is arranged in the atomizer and used for heating aerosol generating substrates stored in the atomizer to form aerosol under the driving of a battery. The nebulizer is removably connectable to the battery pack, the nebulizer is typically disposable and the aerosol-generating substrate in the nebulizer is replaced with a new nebulizer after use. The battery pack can be repeatedly used, and after the atomizer is used up, a new atomizer can be replaced to work.
The basic principle of electronic atomizer control is as follows: and in the atomization process, calculating the current temperature of the heating element according to the current resistance value of the heating element, and controlling the heating power of the heating element according to the current temperature of the heating element. Even if the atomizers with the same model are used, the resistance values of the atomizers at normal temperature are different, so that each time the atomizers are inserted into the battery pack, the controller of the battery pack controls and collects the current resistance value of the heating body to be used as a temperature control resistance value, and the temperature control resistance value is used as the reference of subsequent temperature control. However, under some extreme use conditions, the calculation of the resistance value of the normal temperature resistor may be wrong, which may cause errors in subsequent temperature control.
Disclosure of Invention
Based on the above, the invention provides a heating control method of an electronic atomization device, a heating control device, a battery assembly and the electronic atomization device, which are used for solving the problem that the calculation of the resistance value of a normal-temperature resistor is wrong.
The application provides a heating control method of an electronic atomization device, which comprises the following steps: after a signal inserted into an atomizer is acquired, calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, wherein the interval between every two adjacent sampling moments is less than preset time; acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
In one embodiment, the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values includes: and under the condition that the difference value is smaller than or equal to a first threshold value, taking any real-time resistance value as the temperature control resistance value.
In one embodiment, the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values includes: and setting the latest acquired one of the real-time resistance values as the temperature control resistance value under the condition that the difference value is greater than a first threshold value and less than or equal to a second threshold value.
In one embodiment, the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values includes: and under the condition that the difference value is larger than a second threshold value, continuously acquiring the real-time resistance value of the heating element at the next sampling moment until the difference value between the real-time resistance values at the adjacent sampling moments is smaller than or equal to the second threshold value, and setting the newly acquired real-time resistance value of one heating element as the temperature control resistance value.
In one embodiment, the real-time resistance value comprises at least four values; the obtaining of the temperature control resistance value according to the difference between the adjacent real-time resistance values comprises: and substituting at least four real-time resistance values into a time-resistance relational expression under the condition that the difference value is greater than a first threshold value, and calculating a temperature control resistance value in the time-resistance relational expression, wherein the time-resistance relational expression represents the change rule of the resistance value of the heating body along with the time under the natural cooling condition.
In one embodiment, the obtaining the temperature control resistance value according to the difference between the adjacent real-time resistance values includes: and under the condition that the real-time resistance values are sequentially decreased progressively and the difference value between the adjacent real-time resistance values is greater than the first threshold value, taking the temperature control resistance value adopted in the last temperature control as the temperature control resistance value of the current temperature control.
In one embodiment, the adjusting the heating power of the electronic atomization device according to the temperature control resistance value includes: acquiring the temperature change of the heating body relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current moment; acquiring the temperature value of the heating body at the current moment according to the temperature change value and the normal temperature; and controlling the heating power of the electronic atomization device according to the current temperature value of the heating body and a preset target temperature value.
The application provides an electron atomizing device's heating control device is applied to electron atomizing device, electron atomizing device includes the heat-generating body, heating control device includes: the device comprises a first acquisition module, a second acquisition module and a control module. The first acquisition module is used for acquiring a signal inserted into the atomizer and calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, wherein the interval between every two adjacent sampling moments is less than preset time; the second acquisition module is used for acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; the control module is used for adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
The battery pack provided by the application comprises a memory and a processor, wherein the memory stores a computer program, and the processor is used for realizing the following method when executing the computer program: after a signal inserted into an atomizer is acquired, calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, wherein the interval between every two adjacent sampling moments is less than preset time; acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
The electronic atomization device provided by the application comprises an atomizer and a battery assembly, wherein the battery assembly comprises a memory and a processor, the memory stores a computer program, and the processor is used for realizing the following method when executing the computer program: after a signal inserted into an atomizer is acquired, calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, wherein the interval between every two adjacent sampling moments is less than preset time; acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
According to the heating control method of the electronic atomization device, the heating control device, the battery pack and the electronic atomization device, the temperature control resistance value of the heating element can be accurately obtained by utilizing the acquired difference value between the real-time resistance values at adjacent sampling moments in various application scenes, so that the heating power of the electronic atomization device can be accurately adjusted by utilizing the temperature control resistance value subsequently.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an electronic atomization device according to an embodiment of the invention;
FIG. 2 is a schematic flow chart illustrating a heating control method of an electronic atomizer according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heating control device according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a heating control method of the electronic atomizer according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the relationship between the real-time resistance value of the heating element under the natural cooling condition and the time variation in accordance with one embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a heating control method for an electronic atomizer according to an embodiment of the present invention;
fig. 7 is a schematic flow chart illustrating a heating control method of an electronic atomizer according to an embodiment of the present invention;
FIG. 8 is a schematic flow chart illustrating a heating control method for an electronic atomizer according to an embodiment of the present invention;
FIG. 9 is a flowchart illustrating a heating control method for an electronic atomizer according to an embodiment of the present invention;
fig. 10 is a schematic flow chart illustrating a heating control method of an electronic atomizer according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The control method and electronic atomisation device 100 provided by embodiments of the present application are used to heat an aerosol generating substrate to produce an aerosol for use by a user. Wherein the heating means may be convection, conduction, radiation, or a combination thereof. The aerosol-generating substrate may be in the form of a liquid, gel, paste or solid, etc. When the aerosol-generating substrate is a solid, it may be a solid in the form of a powder, granulate, strip or tablet. The aerosol-generating substrate includes, but is not limited to, materials for medical, health, cosmetic purposes, e.g., the aerosol-generating substrate is a liquid medicine, an oil, or the aerosol-generating substrate is a plant-based material, e.g., roots, stems, leaves, flowers, buds, seeds, etc. of a plant. That is, the embodiments of the present application do not limit the heating manner, form, and use of the aerosol-generating substrate.
Referring to fig. 1, the present application provides an electronic atomizer 100, wherein the electronic atomizer 100 includes an atomizer 40 and a battery assembly 50. Wherein, a heating element 41 is provided in the atomizer 40.
The atomizer 40 may be inserted into the battery assembly 50, and with the atomizer 40 inserted into the battery assembly 50, the battery assembly 50 is capable of heating the heating element 41 with a heating power such that the heating element 41 heats the aerosol-generating substrate to produce an aerosol for use by a user. In order to accurately control the heating power of the heating element 41, it is often necessary to accurately obtain the resistance value of the heating element 41 in the normal temperature environment as a temperature control resistance value, and use the temperature control resistance value as a reference for subsequent temperature control.
Referring to fig. 2, the present application further provides a heating control method of the electronic atomization device 100, which can accurately obtain a heating resistance value of the heating element 41, so as to accurately adjust the heating power of the electronic atomization device 100.
Referring to fig. 1 and fig. 2, a heating control method of the electronic atomization device 100 includes:
01: after a signal inserted into the atomizer 40 is acquired, calculating real-time resistance values of at least two sampling moments of a heating body 41 in the atomizer 40, wherein the interval between every two adjacent sampling moments is less than preset time;
03: acquiring a temperature control resistance value according to a difference value between real-time resistance values at adjacent sampling moments; and
05: the heating power of the electronic atomization device 100 is adjusted according to the temperature control resistance value.
Referring to fig. 1, in some embodiments, the battery assembly 50 further includes a memory 51 and a processor 52. The memory 51 stores a computer program. Referring to fig. 2, the processor 52 is configured to execute a computer program stored in the memory 51 to implement the methods of steps 01, 03 and 05. That is, processor 52 may be configured to: after a signal inserted into the atomizer 40 is acquired, calculating real-time resistance values of at least two sampling moments of the heating body 41, wherein an interval between adjacent sampling moments is less than a preset time; acquiring a temperature control resistance value according to a difference value between real-time resistance values at adjacent sampling moments; and adjusting the heating power of the electronic atomization device 100 according to the temperature control resistance value.
Referring to fig. 3, the present application also provides a heating control device 10, and the heating control device 10 can be applied to the electronic atomization device 100 in the embodiment of the present application, in one embodiment, the heating control device 10 is disposed in the battery assembly 50. The heating control device 10 includes a first acquiring module 11, a second acquiring module 12, and a control module 13. Referring to fig. 2, the first obtaining module 11 is configured to execute the method in step 01, the second obtaining module 12 is configured to execute the method in step 03, and the control module 13 is configured to execute the method in step 05. That is, the first obtaining module 11 is configured to obtain a signal of inserting the atomizer 40, and then calculate real-time resistance values of at least two sampling moments of the heating element 41, where an interval between adjacent sampling moments is smaller than a preset time. The second obtaining module 12 is configured to obtain a temperature control resistance value according to a difference between real-time resistance values at adjacent sampling moments. The control module 13 is configured to adjust the heating power of the electronic atomization device 100 according to the temperature control resistance value.
Referring to fig. 1 and 2, wherein the atomizer 40 is a member storing an aerosol-generating substrate, a heating element 41 is disposed in the atomizer 40. In a case where the atomizer 40 is inserted into the electronic atomization device 100, the electronic atomization device 100 can heat the heating body 41 to generate heat from the heating body 41, and heat the aerosol-generating substrate in the atomizer 40 by the heat generated by the heating body 41 to generate aerosol. In the case where the atomizer 40 is not inserted into the electronic atomization device 100, the electronic atomization device 100 does not need to activate the heating function to heat the heat-generating body 41 in the atomizer 40.
The insertion of the atomizer 40 into the battery assembly 50 includes a variety of different application scenarios. For example, scenario one: the user replaces the old nebulizer 40 and inserts a new (not previously used) nebulizer 40 into the battery assembly 50 for heating. Scene two: when the heat generating body 41 is heated to a certain degree, the user pulls out the atomizer 40, and after a short time, inserts the battery pack 50 again to heat the heat generating body in the atomizer 40, and at this time, the heat generating body is not cooled to the normal temperature. In a third scenario, when the heating element 41 is heated to a certain degree, the user pulls out the atomizer 40 (a), and immediately replaces another atomizer 40 (B) in which the heating element 41 is heated to a certain degree, and inserts the atomizer into the battery assembly 50. In the prior art, the resistance value of a heating element at the moment of inserting an electronic atomization device is judged as a temperature control resistance value (the temperature control resistance value is a resistance value at normal temperature), and the temperature control resistance value is used as a reference for temperature control of the heating element. Under the use conditions of the second and third scenarios, the used temperature control resistance value is not the resistance of the heating element at the normal temperature, for example, in the second scenario, the user pulls out the uncooled heating element 41, when the heating element 41 is not cooled to the room temperature, re-inserts the atomizer 40 into the electronic atomization device 100, and immediately starts to heat the heating element 41, if the current resistance value of the heating element 41 is R1 and the current actual temperature of the heating element 41 is 150 degrees celsius, the electronic atomization device 100 takes the resistance value of the heating element 41 at 150 degrees celsius as the temperature control resistance value (i.e., the resistance value of the heating element 150 degrees celsius is taken as the resistance value at the room temperature of 25 degrees celsius), which will cause errors in subsequent temperature control. In the heating control method of the electronic atomization device 100 according to the embodiment of the present application, after the signal of inserting the atomizer 40 is obtained each time, the corresponding temperature control resistance value is obtained again according to the real-time resistance value of the heating element, and the resistance of the heating element 41 at normal temperature can also be obtained as the temperature control resistance value under the use conditions of the above-mentioned scenario two and scenario three, so as to ensure accurate subsequent temperature control.
The following is further described with reference to the accompanying drawings.
Referring to fig. 4, in some embodiments, 03: obtaining a temperature control resistance value according to a difference value between adjacent real-time resistance values, comprising:
031: and under the condition that the difference value is smaller than or equal to the first threshold value, taking any real-time resistance value as a temperature control resistance value.
Referring to FIG. 1, in some embodiments, the processor 52 is further configured to perform the method of step 031. That is, processor 52 may be configured to: and under the condition that the difference value is smaller than or equal to the first threshold value, taking any real-time resistance value as a temperature control resistance value.
Referring to fig. 3, in some embodiments, the second obtaining module 12 may be further configured to perform the method in step 031. That is, the second obtaining module 12 may further be configured to: and under the condition that the difference value is smaller than or equal to the first threshold value, taking any real-time resistance value as a temperature control resistance value.
Referring to fig. 5, fig. 5 is a schematic diagram of a real-time resistance value of the heating element 41 under a natural cooling condition (i.e., cooling at an ambient temperature, for example, 20 degrees celsius is set as a usage ambient temperature) as a function of time, the resistance-time variation relationship diagram can be obtained by performing a plurality of heating tests on the electronic atomization device 100, the heating tests are performed by obtaining a plurality of test data according to a condition that a real-time resistance value of the heating element 41 under a natural cooling condition changes with time, and a resistance-time variation relationship curve as shown in fig. 5 can be obtained by fitting according to the test data obtained by the tests, and the resistance-time variation relationship curve can represent a variation rule of the real-time resistance value of the heating element 41 under a natural cooling condition as a function of time.
Referring to fig. 5, the diagram includes a first interval, a second interval and a third interval divided by time periods. The third section is the first period of time during which the heating element 41 starts to cool naturally, and the real-time resistance value in the third section changes with time to a large extent. The second interval is a period corresponding to a period after the heating element 41 is naturally cooled for a certain period of time, and the degree of change of the real-time resistance value in the second interval with time is small, and the real-time resistance value is closer to the resistance value of the heating element 41 in the normal temperature environment. The first section is a time zone in which the heating element 41 is cooled to near normal temperature, and the real-time resistance values at different times in the third section are approximately equal to each other.
The first threshold is used for judging whether the adjacent real-time resistance values are approximately equal. When the difference between the adjacent real-time resistance values is smaller than or equal to the first threshold, the adjacent real-time resistance values may be considered to be approximately equal to each other, and correspond to the real-time resistance values at the adjacent sampling times in the first interval illustrated in fig. 5.
The difference between adjacent real-time resistance values refers to the difference between real-time resistance values at adjacent sampling moments. For example, let t1 be earlier in two adjacent sampling times t1 and t2At a later time t2, the two real-time resistance values collected at the two sampling times t1 and t2 are respectively R t1 And R t2 ，(R t1 -R t2 )＝△R t12 . Setting a preset first threshold value as R y1 Then at Δ R t12 ≤R y1 In the case of (2), R can be considered to be t1 ≈R t2 R is adjusted to the normal temperature environment of the heating element 41 t1 And R t2 Any of these is set as a temperature control resistance value, and the effect of adjusting the heating power of the electronic atomization device 100 is also approximately equivalent.
In some embodiments, the adjacent real-time resistance values for the difference determination may be any number of two or more, which is not limited herein. For example, in one embodiment, the real-time resistance value R is obtained at four adjacent sampling times t1, t2, t3, and t4 respectively t1 、R t2 、R t3 、R t4 ，(R t1 -R t2 )＝△R t12 ，(R t2 -R t3 )＝△R t23 ，(R t3 -R t4 )＝△R t34 And step 031: when the difference is less than or equal to the first threshold, any real-time resistance value is taken as the temperature control resistance value, which may be Δ R t12 、△R t23 、△R t34 Are all less than or equal to the first threshold value R y1 In the case of the first threshold, R is set t1 、R t2 、R t3 、R t4 As a temperature control resistance value, i.e., R in this case t1 ≈R t2 ≈R t3 ≈R t4 。
Referring to fig. 6, in some embodiments, 03: obtaining a temperature control resistance value according to a difference value between adjacent real-time resistance values, comprising:
033: and setting the latest acquired one of the real-time resistance values as the temperature control resistance value under the condition that the difference value is greater than the first threshold value and less than or equal to the second threshold value.
Referring to fig. 1, in some embodiments, the processor 52 is further configured to perform the method of step 033 described above. That is, processor 52 may be configured to: and setting the latest acquired one of the real-time resistance values as the temperature control resistance value under the condition that the difference value is greater than the first threshold value and less than or equal to the second threshold value.
Referring to fig. 3, in some embodiments, the second obtaining module 12 can be further configured to perform the method in step 033. That is, the second obtaining module 12 may further be configured to: and setting the latest acquired one of the real-time resistance values as the temperature control resistance value under the condition that the difference value is greater than the first threshold value and less than or equal to the second threshold value.
Referring to fig. 5, when the difference between the adjacent real-time resistance values is greater than the first threshold, the adjacent real-time resistance values are the real-time resistance values in the second interval or the third interval of fig. 5. In this case, the newly acquired real-time resistance value is a resistance value closest to the real-time resistance value of the first section, and the real-time resistance value of the first section is a resistance value almost equal to the resistance value of the heat generating body 41 in the normal temperature environment, that is, in the case where the difference between the adjacent real-time resistance values is larger than the first threshold value, the newly acquired real-time resistance value is one closest to the resistance value of the heat generating body 41 in the normal temperature environment.
In some application scenarios, a signal for inserting the atomizer 40 may be acquired in a third interval illustrated in fig. 5, as shown in fig. 5, a real-time resistance value corresponding to a sampling time of the third interval is greatly different from a real-time resistance value of the first interval, and the real-time resistance value of the first interval is a resistance value almost equal to a resistance value of the heating element 41 in the normal temperature environment, that is, the real-time resistance value of the third interval is greatly different from the resistance value of the heating element 41 in the normal temperature environment, so if the real-time resistance value in the third interval is directly set as the temperature control resistance value, the difference between the temperature control resistance value and the resistance value of the heating element 41 in the normal temperature environment is large, which easily causes inaccurate heating power adjustment using the temperature control resistance value.
The second threshold is used for judging the degree of difference of the difference between the adjacent real-time resistance values. If the difference value is larger than the second threshold value, the fact that the difference value between the adjacent real-time resistance values is large corresponds to the cooling condition of the third interval is represented; and if the difference is smaller than or equal to the second threshold, the difference between the adjacent real-time resistance values is smaller and corresponds to the cooling condition of the second interval or the first interval. In combination with the foregoing, the difference between the real-time resistance value obtained at the sampling time of the third interval and the resistance value in the normal temperature environment is large, and is not suitable for adjusting the heating power of the electronic atomization device 100; according to the method of the foregoing step 031, the real-time resistance value obtained at the sampling time of the first interval can be directly set as the temperature control resistance value. For the real-time resistance value obtained at the sampling time of the second interval, under the condition that the sampling resistance value is determined to be the adopted resistance of the second interval, the latest obtained real-time resistance value is set as the temperature control resistance value, so that one real-time resistance value closest to the resistance value of the heating element 41 in the normal temperature environment is set as the temperature control resistance value.
The combination of the first threshold and the second threshold may be used to determine the adjacent real-time resistance value as the real-time resistance value for which interval the cooling condition corresponds. Specifically, let the difference between adjacent real-time resistance values be Δ R, and the first threshold value be R y1 The first threshold is R y2 Then at Δ R ≦ R y1 Corresponds to a first interval, where Δ R > R y2 Corresponds to the third interval, in the case of R y1 ＜△R≤R y2 Corresponds to the second interval in the case of (1). That is, step 033 is equivalent to that the difference between the adjacent real-time resistance values represents that the adjacent real-time resistance values are closer to the resistance value of the heating element 41 in the normal temperature environment, and in a case where one of the adjacent real-time resistance values which is most closely to the resistance value of the heating element 41 in the normal temperature environment is obtained, the newly obtained one of the adjacent real-time resistance values is set as the temperature control resistance value.
Therefore, when the difference between the adjacent real-time resistance values is greater than the first threshold and less than or equal to the second threshold, the latest acquired one of the real-time resistance values can be set as the temperature-control resistance value, so that the heating power can be adjusted by using the resistance value of the nearest heating element 41 in the normal temperature environment, and the adjustment accuracy is ensured.
Referring to fig. 7, in some embodiments, 03: obtaining a temperature control resistance value according to a difference value between adjacent real-time resistance values, comprising:
034: and under the condition that the difference value is greater than the second threshold value, continuously acquiring the real-time resistance value of the heating element 41 at the next sampling moment until the difference value between the real-time resistance values at the adjacent sampling moments is less than or equal to the second threshold value, and setting the newly acquired real-time resistance value of one heating element 41 as the temperature control resistance value.
Referring to fig. 1, in some embodiments, the processor 52 may also be configured to execute the method in step 034. That is, processor 52 may be configured to: and under the condition that the difference value is larger than the second threshold value, continuously acquiring the real-time resistance value of the heating element 41 at the next sampling moment until the difference value between the real-time resistance values at the adjacent sampling moments is smaller than or equal to the second threshold value, and setting the newly acquired real-time resistance value of one heating element 41 as the temperature control resistance value.
Referring to fig. 3, in some embodiments, the second obtaining module 12 may be further configured to perform the method in step 034. That is, the second obtaining module 12 may further be configured to: and under the condition that the difference value is larger than the second threshold value, continuously acquiring the real-time resistance value of the heating element 41 at the next sampling moment until the difference value between the real-time resistance values at the adjacent sampling moments is smaller than or equal to the second threshold value, and setting the newly acquired real-time resistance value of one heating element 41 as the temperature control resistance value.
Referring to fig. 5, although the difference between the real-time resistance value obtained at the sampling time of the third interval and the resistance value in the normal temperature environment is large, and is not suitable for adjusting the heating power of the electronic atomization device 100, the duration of the third interval is short, if it is determined that the adjacent real-time resistance value is the real-time resistance value of the third interval, the heating element 41 may wait to continue to be cooled until the real-time resistance value of the heating element 41 corresponds to the real-time resistance value of the second interval, and the real-time resistance value in this case is closer to the resistance value of the heating element 41 in the normal temperature environment, and may be used to adjust the heating power of the electronic atomization device 100.
Namely, under the condition that the difference value between the adjacent real-time resistance values is greater than the second threshold value, the cooling condition of the third interval corresponding to the adjacent real-time resistance values is represented, in this case, the temperature control resistance value is not set, and the real-time resistance value of the heating element 41 at the subsequent sampling time is continuously obtained. Until the difference between the real-time resistance values at the adjacent sampling moments is less than or equal to the second threshold, the cooling condition of the second interval corresponding to the adjacent real-time resistance values is represented, and the latest acquired real-time resistance value of one heating element 41 can be set as the temperature control resistance value by using the principle of step 033, so that the real-time resistance value closest to the resistance value of the heating element 41 in the normal temperature environment is set as the temperature control resistance value.
Referring to fig. 8, in some embodiments, 03: obtaining a temperature control resistance value according to a difference value between adjacent real-time resistance values, comprising:
035: and under the condition that the difference value is larger than the first threshold value, substituting at least four real-time resistance values into a time-resistance relational expression, and calculating the temperature control resistance value in the time-resistance relational expression, wherein the time-resistance relational expression represents the change rule of the resistance value of the heating body along with the time under the natural cooling condition.
Referring to FIG. 1, in some embodiments, the processor 52 is further configured to perform the method of step 035. That is, the processor 52 may be configured to substitute at least four real-time resistance values into a time-resistance relational expression to calculate a temperature-control resistance value in the time-resistance relational expression when the difference is greater than the first threshold, where the time-resistance relational expression represents a change rule of the resistance value of the heating element with time under a natural cooling condition.
Referring to fig. 3, in some embodiments, the second obtaining module 12 may be further configured to perform the method of the above step 035. That is, the second obtaining module 12 may further be configured to: and under the condition that the difference value is larger than the first threshold value, substituting at least four real-time resistance values into a time-resistance relational expression, and calculating the temperature control resistance value in the time-resistance relational expression, wherein the time-resistance relational expression represents the change rule of the resistance value of the heating body along with the time under the natural cooling condition.
Referring to fig. 5, in some embodiments, the time-resistance relation is obtained from a time-dependent change of the real-time resistance value of the heating element 41 during natural cooling. The time-resistance relational expression represents the correlation among the real-time resistance value, the temperature control resistance value, the temperature reduction resistance value, the sampling time and the preset temperature reduction constant. According to the time-resistance relation, the temperature control resistance value can be calculated by using at least four adjacent real-time resistance values in any cooling time period, and the temperature control resistance value represents the real-time resistance value of the heating element 41 in the normal temperature environment.
In combination with the foregoing, the real-time resistance value of the first interval is almost equal to the real-time resistance value of the heating element 41 in the normal temperature environment, so that when the adjacent real-time resistance values correspond to the first interval, that is, when the adjacent real-time resistance values are less than or equal to the first threshold, the temperature control resistance value can be directly set as the temperature control resistance value according to the method of step 031 without using a time-resistance relational expression, so as to save the calculation steps and obtain the temperature control resistance value more quickly.
When the difference between the adjacent real-time resistance values is greater than the first threshold, the adjacent real-time resistance values are not approximately equal to the real-time resistance value of the heating element 41 in the normal temperature environment, so that the temperature control resistance value capable of representing the real-time resistance value of the heating element 41 in the normal temperature environment can be accurately calculated according to the time-resistance relation.
Specifically, let the real-time resistance value be R x The temperature control resistance value is R 0 The temperature drop resistance value is R s (the temperature-decreasing resistance value is a resistance value corresponding to the start of natural cooling of the heating element 41, for example, a resistance value corresponding to the start of cooling in a room temperature environment when the heating element 41 stops heating when heated to 270 degrees Celsius), and a time interval t from the start of natural cooling x If the temperature reduction constant is k (k remains unchanged in the primary temperature reduction process), the preset time-resistance relation is shown as formula one:
the formula I is as follows: r x ＝R s +(R 0 -R s )*(1-exp(-T x K)), wherein (T) x ＝t x ^(1/4.4))。
The formula is a fitting formula corresponding to a change relation curve of the real-time resistance value of the heating element along with the time change when the heating element is naturally cooled according to the Newton cooling law. FIG. 5 is a graph showing a real-time resistance value versus time of the heating element 41 under a condition of natural cooling, and the natural cooling of the heating element 41 follows Newton's law of cooling, therefore, formula oneFitting to the resistance-time variation curve of fig. 5 can be satisfied. I.e. any time interval t to the start of free cooling, determined on the resistance-time curve in fig. 5 x Substituting into formula one to obtain resistance value R x Is the real-time resistance value R on the resistance-time variation curve in FIG. 5 t 。
As can be seen, the formula I includes a temperature control resistance value R 0 And a temperature-lowering resistance value R s Time interval t from the start of natural cooling x K four unknowns. Therefore, the real-time resistance R can be obtained x Under the condition, at least four adjacent real-time resistance values are obtained according to preset interval time and are respectively substituted into the formula I to obtain at least 4 equations, and the residual unknown temperature control resistance value R can be obtained by solving the at least 4 equations obtained in a simultaneous manner 0 And a temperature-lowering resistance value R s Sampling time (time interval from the start of natural cooling) t x 。
For example, four real-time resistance values are obtained as R t1 、R t2 、R t3 、R t4 Substituting the formula I to respectively obtain the following four equations:
equation one: r t1 ＝R s +(R 0 -R s )*(1-exp(-T 1 K)), wherein (T) 1 ＝t 1 ^(1/4.4))；
Equation two: r t2 ＝R s +(R 0 -R s )*(1-exp(-T 2 K)), wherein (T) 2 ＝t 2 ^(1/4.4))，t 2 ＝t 1 +△t；
Equation three: r t3 ＝R s +(R 0 -R s )*(1-exp(-T 3 K)), wherein (T) 3 ＝t 3 ^(1/4.4))，t 3 ＝t 2 +△t；
Equation four: r t4 ＝R s +(R 0 -R s )*(1-exp(-T 4 K)), wherein (T) 4 ＝t 4 ^(1/4.4))，t 4 ＝t 3 +△t；
Where Δ t is a preset time interval. Thus, in four real-timesResistance value R t1 、R t2 、R t3 、R t4 Under the known condition, the simultaneous equation I, equation II, equation III and equation IV can be solved to obtain k and R s 、R 0 And t 1 Thereby obtaining the required temperature control resistance value R 0 。
Referring to fig. 9, in some embodiments, 03: obtaining a temperature control resistance value according to a difference value between adjacent real-time resistance values, comprising:
039: and under the condition that the real-time resistance values are sequentially decreased progressively and the difference value between the adjacent real-time resistance values is greater than a first threshold value, taking the temperature control resistance value adopted in the last temperature control as the temperature control resistance value of the current temperature control.
Referring to fig. 1, in some embodiments, the processor 52 may also be configured to execute the method in step 039. That is, processor 52 may be configured to: and under the condition that the real-time resistance values are sequentially decreased progressively and the difference value between the adjacent real-time resistance values is greater than a first threshold value, taking the temperature control resistance value adopted in the last temperature control as the temperature control resistance value of the current temperature control.
Referring to fig. 3, in some embodiments, the second obtaining module 12 may be further configured to perform the method in the step 039. That is, the second obtaining module 12 may further be configured to: and under the condition that the real-time resistance values are sequentially decreased progressively and the difference value between the adjacent real-time resistance values is greater than a first threshold value, taking the temperature control resistance value adopted in the last temperature control as the temperature control resistance value of the current temperature control.
In some embodiments, since the probability of occurrence of an old nebulizer 40 being more heat-exchanged by a new nebulizer 40 that is hot for a user is extremely low, it is considered that the user has performed a plugging operation on the same hot nebulizer 40 in a case where the real-time resistance values sequentially decrease and the difference between adjacent real-time resistance values is greater than the first threshold value. In this case, the temperature control resistance value calculated previously based on the insertion of the atomizer 40 still applies, and therefore, the temperature control resistance value adopted in the last temperature control can be used as the temperature control resistance value of the current temperature control.
Referring to fig. 10, in some embodiments, 05: adjusting the heating power of the electronic atomization device 100 according to the temperature control resistance value includes:
051: acquiring the temperature change of the heating element 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current moment;
053: acquiring the temperature value of the heating body 41 at the current moment according to the temperature change value and the normal temperature; and
055: and controlling the heating power of the electronic atomization device 100 according to the current temperature value of the heating element 41 and the preset target temperature value.
Referring to fig. 1, in some embodiments, the processor 52 may also be used to perform the methods in steps 051, 053 and 055. That is, processor 52 may be configured to: acquiring the temperature change of the heating body 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current moment; acquiring a temperature value at the current moment according to the temperature change value and the normal temperature; and controlling the heating power of the electronic atomization device 100 according to the temperature value at the current moment and a preset target temperature value.
Referring to FIG. 3, in some embodiments, the control module 13 may also be used to perform the methods of the above-mentioned steps 051, 053 and 055. That is, the control module 13 may also be configured to: acquiring the temperature change of the heating body 41 relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current moment; acquiring a temperature value at the current moment according to the temperature change value and the normal temperature; and controlling the heating power of the electronic atomization device 100 according to the temperature value at the current moment and the preset target temperature value.
The temperature value at the present time is the temperature value of the heating element 41 at the present time. If the temperature value at the current time is Tt, tt can be calculated according to the following formula two.
The formula II is as follows: tt = T 0 +△T
Wherein, T 0 The temperature is normal temperature, usually 25 ℃, and other temperature values can be selected as normal temperature according to actual conditions. Δ T is a temperature change of the heating element 41 at room temperature, and can be calculated according to the following formula three.
The formula III is as follows: t = (R) t –R 0 )/(R 0 *TCR)
Wherein R is t Is the real-time resistance value R of the heating element 41 at the present time 0 Is a temperature control resistance value, and TCR is a known quantity of resistance temperature coefficient of the heating element 41.
In summary, the temperature change of the heating element 41 with respect to the normal temperature can be obtained according to the third formula, the temperature value of the heating element 41 at the current time can be obtained according to the fourth formula, and the temperature value of the heating element 41 at the current time is used for adjusting the heating power of the electronic atomization device 100 according to the target temperature value.
In some embodiments, the target temperature value is used as a judgment threshold for the dry-fire prevention process. In this case, when the temperature value of the heating element 41 at the present time is greater than or equal to the target temperature value, the heating power of the electronic atomization device 100 is reduced to 0 or a lower power to avoid dry burning.
In some embodiments, the target temperature value is the temperature that the heat-generating body 41 is desired to reach. In one embodiment, the target temperature is Tm, and the target temperatures Tm ± G ℃ are all acceptable temperature control ranges, and the heating power of the electronic atomization device 100 is controlled to be reduced when the temperature value Tt of the heating element 41 at the current time is greater than or equal to Tm + G ℃; when the temperature value Tt of the heating element 41 at the present time is smaller than Tm — G ℃, the heating power of the electronic atomization device 100 is controlled to be increased so as to maintain the temperature of the heating element 41 between Tm ± G ℃.
Referring to fig. 11, the present application further provides a computer-readable storage medium 400, on which a computer program 401 is stored, and when the computer program 401 is executed by the processor 52, the steps of the heating control method in any one of the embodiments of the present application can be implemented.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Also, other implementations may be derived from the above-described embodiments, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. A method of controlling heating of an electronic atomizer, comprising:
after a signal inserted into an atomizer is acquired, calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, wherein the interval between every two adjacent sampling moments is less than preset time;
acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; and
and adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
2. The heating control method according to claim 1, wherein the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values comprises:
and under the condition that the difference value is smaller than or equal to a first threshold value, taking any real-time resistance value as the temperature control resistance value.
3. The heating control method according to claim 1, wherein the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values comprises:
and setting the latest acquired one of the real-time resistance values as the temperature control resistance value under the condition that the difference value is greater than a first threshold value and less than or equal to a second threshold value.
4. The heating control method according to claim 1, wherein the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values comprises:
and under the condition that the difference value is larger than a second threshold value, continuously acquiring the real-time resistance value of the heating element at the next sampling moment until the difference value between the real-time resistance values at the adjacent sampling moments is smaller than or equal to the second threshold value, and setting the newly acquired real-time resistance value of one heating element as the temperature control resistance value.
5. The heating control method according to claim 1, wherein the real-time resistance values include at least four; the obtaining of the temperature control resistance value according to the difference between the adjacent real-time resistance values comprises:
and substituting at least four real-time resistance values into a time-resistance relational expression under the condition that the difference value is greater than a first threshold value, and calculating a temperature control resistance value in the time-resistance relational expression, wherein the time-resistance relational expression represents the change rule of the resistance value of the heating body along with the time under the natural cooling condition.
6. The heating control method according to claim 1, wherein the obtaining a temperature control resistance value according to a difference between adjacent real-time resistance values comprises:
and under the condition that the real-time resistance values are sequentially decreased progressively and the difference value between the adjacent real-time resistance values is greater than a first threshold value, taking the temperature control resistance value adopted in the last temperature control as the temperature control resistance value of the current temperature control.
7. The heating control method according to claim 1, wherein the adjusting the heating power of the electronic atomization device according to the temperature control resistance value comprises:
acquiring the temperature change of the heating element relative to the normal temperature according to the temperature control resistance value and the real-time resistance value at the current moment;
acquiring the temperature value of the heating element at the current moment according to the temperature change value and the normal temperature; and
and controlling the heating power of the electronic atomization device according to the current temperature value of the heating element and a preset target temperature value.
8. A heating control device applied to an electronic atomization device is characterized by comprising:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring a signal inserted into an atomizer and calculating real-time resistance values of at least two sampling moments of a heating body in the atomizer, and the interval between every two adjacent sampling moments is less than preset time;
the second acquisition module is used for acquiring a temperature control resistance value according to the difference value between the real-time resistance values at the adjacent sampling moments; and
and the control module is used for adjusting the heating power of the electronic atomization device according to the temperature control resistance value.
9. A battery assembly comprising a memory and a processor, the memory storing a computer program, characterized in that the processor when executing the computer program realizes the steps of the heating control method according to any one of claims 1 to 7.
10. An electronic atomizer device comprising the battery assembly of claim 9 and an atomizer.
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| CN202211652374.2A CN115736389A (en) | 2022-12-21 | 2022-12-21 | Heating control method, heating control device, battery pack and electronic atomization device |
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| CN202211652374.2A CN115736389A (en) | 2022-12-21 | 2022-12-21 | Heating control method, heating control device, battery pack and electronic atomization device |
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