Aerosol generating apparatus and sensing control apparatus thereof

Abstract

An aerosol generation device and a sensing control apparatus thereof. The sensing control apparatus comprises: a to-be-measured capacitor assembly (100), which is used for generating a change in capacitance according to whether an atomization medium is inserted, one capacitor electrode plate of the to-be-measured capacitor assembly (100) being arranged on a heating body that is used for being inserted into the atomization medium; and a capacitance processing assembly (200), which is connected to the to-be-measured capacitor assembly and is used for analyzing the state of the atomization medium according to the capacitance of the to-be-measured capacitor assembly, and performing heating control on an aerosol generating apparatus according to the state of the atomization medium. The to-be-measured capacitor assembly (100) generates a change in capacitance according to whether the to-be-measured capacitor assembly (100) is inserted into the atomization medium, the capacitance processing assembly (200) analyzes the state of the atomization medium according to the capacitance of the to-be-measured capacitor assembly (100), and heating control is performed on the aerosol generating apparatus according to the state of the atomization medium, thereby implementing automatic heating control that incorporates the state of the atomization medium and does not require a user to use a button to start the aerosol generating apparatus and perform heating, thus improving convenience in use.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims the priority of Chinese patent application No. 202210776569. 1, filed on July 4, 2022, and entitled "AEROSOL GENERATING DEVICE, AND SENSING AND CONTROLLING DEVICE THEREOF", which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] The present application relates to the technical field of atomization through heating, and in particular, to an aerosol generating device, and a sensing and controlling device thereof.BACKGROUND

[0003] An aerosol generating device is an electronic device that atomizes an atomization substrate to form aerosol for users to inhale. The aerosol generating device does not involve harmful substances such as tar and do not cause any harm to smokers, thus this type aerosol devices are popular among users. An action of starting heating of a traditional aerosol generating device is usually achieved by using a button, and automatically starting heating cannot be achieved, which has the disadvantage of low utilization convenience.SUMMARY

[0004] In view of this, in order to address the problem of low usage convenience of the traditional aerosol generating devices, it is necessary to provide an aerosol generating device and a sensing and controlling device thereof that can improve the usage convenience.

[0005] A sensing and controlling device for an aerosol generating device includes: a to-be-measured capacitor component, configured to generate a capacitance change according to whether an atomization substrate is inserted or not, one capacitor plate of the to-be-measured capacitor component being arranged on a heating element configured for an insertion of the atomization substrate; and a capacitance processing component, connected to the to-be-measured capacitor component, and configured to analyze a state of the atomization substrate according to capacitance of the to-be-measured capacitor component and control the aerosol generating device to heat according to the state of the atomization substrate.

[0006] In one of the embodiments, the capacitance processing component is further configured to control the aerosol generating device to start heating when recognizing that the atomization substrate is inserted according to the capacitance of the to-be-measured capacitor component, and control the aerosol generating device to stop heating when recognizing that the atomization substrate is drawn out according to the capacitance of the to-be-measured capacitor component.

[0007] In one of the embodiments, the capacitance processing component is further configured to detect that the atomization substrate is inserted when a difference between the capacitance of the to-be-measured capacitor component and a preset capacitance is greater than a first preset threshold value.

[0008] In one of the embodiments, the capacitance processing component is further configured to detect that the atomization substrate is drawn out when a difference between the capacitance of the to-be-measured capacitor component and a capacitance of the to-be-measured capacitor component corresponding to the atomization substrate being detected as being inserted is greater than a second preset threshold.

[0009] In one of the embodiments, the to-be-measured capacitor component includes a substrate, a first capacitor plate, and a second capacitor plate; and the first capacitor plate and the second capacitor plate are distributed on the substrate in an insertion direction of the atomization substrate.

[0010] In one of the embodiments, the first capacitor plate is a closed loop plate or a non-closed loop plate.

[0011] In one of the embodiments, the first capacitor plate is a metal loop plate.

[0012] In one of the embodiments, the first capacitor plate includes an insulating loop and a metal plate disposed on the insulating loop.

[0013] In one of the embodiments, the second capacitor plate is a conical capacitor plate.

[0014] In one of the embodiments, the second capacitor plate is a metal capacitor plate.

[0015] In one of the embodiments, the second capacitor plate includes an insulator and a metal loop disposed on the insulator.

[0016] In one of the embodiments, the substrate is a substrate of a non-conductive material.

[0017] In one of the embodiments, the first capacitor plate and the second capacitor plate are configured not to overlap in the insertion direction of the atomization substrate.

[0018] In one of the embodiments, the first capacitor plate and the second capacitor plate are configured to partially overlap in the insertion direction of the atomization substrate.

[0019] In one of the embodiments, the capacitance processing component includes a capacitance acquisition component and a main control unit, and the capacitance acquisition component is connected to the to-be-measured capacitance component and the main control unit.

[0020] An aerosol generating device includes the sensing and controlling device above.

[0021] In the sensing and controlling device of the aerosol generating device above, one capacitor plate of the to-be-measured capacitor component is arranged on the heating element configured for allowing the atomization substrate to be inserted. The to-be-measured capacitor component generates a capacitance change according to whether the atomization substrate is inserted or not. The capacitance processing component analyzes the state of the atomization substrate according to the capacitance of the to-be-measured capacitor component, and controls the aerosol generating device to heat according to the state of the atomization substrate, thereby realizing the technical effect of automatically controlling heating according to the state of the atomization substrate. There is no need for the user to use a button to start the heating of the aerosol generating device, thereby improving the usage convenience.BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to describe the solutions in the embodiments of the present application or in the prior art more clearly, the accompanying drawings to be used in the description of the embodiments or the prior art will be described briefly. Obviously, the drawings described hereinafter are only some embodiments of the present application. For those ordinary skilled in the art, other drawings may also be obtained based on the following drawings without creative efforts. FIG. 1 is a block diagram showing a structure of a sensing and controlling device of an aerosol generating device according to an embodiment of the present application. FIG. 2 is a schematic structural view of a to-be-measured capacitor component according to an embodiment of the present application. FIG. 3 a schematic structural view of a to-be-measured capacitor component according to another embodiment of the present application. FIG. 4 is a schematic view showing a state of an atomization substrate according to an embodiment of the present application. FIG. 5 is a schematic view showing the state of the atomization substrate according to another embodiment of the present application. FIG. 6 is a schematic structural view of a first capacitor plate according to an embodiment of the present application. FIG. 7 is a schematic structural view of the first capacitor plate according to another embodiment of the present application. FIG. 8 is a schematic view showing structures of first capacitor plates of various shapes according to an embodiment of the present application. FIG. 9 is a schematic structural view of a second capacitor plate according to an embodiment of the present application. FIG. 10 is a schematic structural view of the second capacitor plate according to another embodiment of the present application. FIG. 11 is a schematic view showing a principle of detecting position information of an inserted atomization substrate according to an embodiment of the present application. FIG. 12 is a schematic view showing an equivalent capacitor according to an embodiment of the present application. FIG. 13 is a schematic view showing capacitor plates of the to-be-measured capacitor component being a solitary component to be measured according to an embodiment of the present application. FIG. 14 is a schematic view showing capacitor plates of the to-be-measured capacitor component being a series-connected type of a composite component to be measured according to an embodiment of the present application. FIG. 15 is a schematic view showing capacitor plates of the to-be-measured capacitor component being a parallelly-connected type of the composite component to be measured according to an embodiment of the present application. FIG. 16 is a schematic view showing a connection between a touch key IC and the to-be-measured capacitor component according to an embodiment of the present application. FIG. 17 is a schematic view showing a connection between the touch key IC and the to-be-measured capacitor component according to another embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the purpose, technical solutions and advantages of the present application more clearly and to be better understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application but are not used to limit the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those ordinary skilled in the art. The terms used herein in the description of this application are only for the purpose of describing specific embodiments, but are not intended to limit this application.

[0025] It can be understood that the "connection" in the following embodiments should be understood as "electrical connection", and "communication connection", etc., if there is transmission of electrical signals or data between the connected circuits, modules and units, etc.

[0026] The action of starting heating of the existing aerosol generating device is usually achieved by using a button, thus causing low utilization convenience. In view of this, the present application provides a sensing and controlling device for an aerosol generating device, the sensing and controlling device for the aerosol generating device includes a to-be-measured capacitor component and a capacitance processing component. A capacitor plate of the to-be-measured capacitor component is arranged on a heating element, the heating element is configured to allow an atomization substrate to be inserted, and the to-be-measured capacitor component generates a capacitance change according to whether the atomization substrate is inserted or not. The capacitance processing component analyzes the state of the atomization substrate according to the capacitance value of the to-be-measured capacitor component, and controls the aerosol generating device to heat according to the state of the atomization substrate, thereby realizing an intelligent judgment of the insertion of the atomization substrate, and thus achieving the purpose of intelligently starting heating the atomization substrate, and realizing an intelligent judgment of a removal of the atomization substrate, and thus achieving the purpose of intelligently stopping heating the atomization substrate, that is, stopping when removing. Moreover, the sensing and controlling device can avoid misheating when there is no atomization substrate in the aerosol generating device, and prevent dry burning when there is no atomization substrate, and has a certain intelligent safety. In an embodiment, the atomization substrate may be a solid substrate, which is used to generate aerosol when being heated. The atomization substrate may include a tobacco material, and aroma components may be further added to the tobacco material. The atomization substrate contains volatile tobacco flavor compounds released from the substrate when being heated. In other embodiments, the atomization substrate may also be a liquid substrate, which is atomized to form aerosol when being heated.

[0027] In an embodiment, as shown in FIG. 1, the present application provides a sensing and controlling device for an aerosol generating device, including a to-be-measured capacitor component 100 and a capacitance processing component 200. One capacitor plate of the to-be-measured capacitor component 100 is arranged on a heating element, the heating element is configured for an insertion of an aerosol forming substrate. The capacitance processing component 200 is connected to the to-be-measured capacitor component 100. The to-be-measured capacitor component 100 generates a capacitance change according to whether the atomization substrate is inserted or not. The capacitance processing component 200 analyzes the state of the atomization substrate according to the capacitance value of the to-be-measured capacitor component 100, and controls the aerosol generating device to heat according to the state of the atomization substrate.

[0028] Specifically, the to-be-measured capacitor component 100 may be arranged in a cavity of the aerosol generating device configured for allowing the atomization substrate to the inserted. When the user inserts the atomization substrate into the aerosol generating device or draws it out, the to-be-measured capacitor component 100 may produce a capacitance change according to an actual insertion position of the atomization substrate. The capacitance processing component 200 may pre-save an initial capacitance value of the to-be-measured capacitor component 100 as a comparison threshold, and compare detected actual capacitance value of the to-be-measured capacitor component 100 with the comparison threshold, to determine whether the atomization substrate is in a state of being inserted or a state of being drawn out, and then control the aerosol generating device to heat according to the state of the atomization substrate. For example, the capacitance processing component 200 controls a power supply module to supply power and start heating when the atomization substrate is detected to be inserted, and the capacitance processing component 200 may also control the power supply module to turn off the power supply and stop heating when the atomization substrate is detected to be drawn out.

[0029] The number of the capacitor plates of the to-be-measured capacitor component 100 is not limited, and it may be 2, 3 or more. The structures of the capacitor plates may be all the same, partially the same or all different. Specifically, when the to-be-measured capacitor component 100 includes two capacitor plates, the atomization substrate may be detected to be in a state of being inserted or being drawn out based on the capacitance of the to-be-measured capacitor component 100.

[0030] It can be understood that the manner in which the capacitance processing component 200 controls the aerosol generating device to heat according to the state of the atomization substrate is not limited. In an embodiment, the capacitance processing component 200 controls the aerosol generating device to start heating when it detects that the atomization substrate is inserted according to the capacitance of the to-be-measured capacitor component 100, and controls the aerosol generating device to stop heating when it detects that the atomization substrate is drawn out according to the capacitance of the to-be-measured capacitor component 100. By detecting the capacitance of the to-be-measured capacitor component 100 to detect the insertion and removal of the atomization substrate, an automatic heating control according to the state of the atomization substrate is achieved.

[0031] In an embodiment, the capacitance processing component 200 detects that the atomization substrate is inserted when a difference between the capacitance of the to-be-measured capacitor component 100 and a preset capacitance is greater than a first preset threshold value. The initial capacitance value of the to-be-measured capacitor component 100 is saved as the preset capacitance C0, and the value of the first preset threshold value Cth1 is not unique and may be set according to actual conditions. When the difference between the actual capacitance of the to-be-measured capacitor component 100 and the preset capacitance C0 is greater than the first preset threshold value Cth1, it may be determined that the atomization substrate is inserted, and the capacitance processing component 200 automatically controls the aerosol generating device to start heating.

[0032] Further, in an embodiment, the capacitance processing component 200 detects that the atomization substrate is drawn out when the difference between the capacitance of the to-be-measured capacitor component 100 and capacitance of the to-be-measured capacitor component 100 corresponding to the atomization substrate being detected as being inserted is greater than a second preset threshold. Specifically, the value of the second preset threshold Cth2 is not limited and may be set according to actual conditions. The capacitance processing component 200 saves the capacitance C1 of the to-be-measured capacitor component 100 corresponding to the atomization substrate being detected as being inserted, and continues to detect the actual capacitance of the to-be-measured capacitor component 100. When it is detected that the capacitance of the to-be-measured capacitor component 100 becomes C2, and the difference between the capacitance C2 and the capacitance C1 is greater than the second preset threshold Cth2, it may be determined that the atomization substrate is drawn out, and the capacitance processing component 200 controls the aerosol generating device to stop heating.

[0033] The detailed structure of the capacitance processing component 200 is not unique. In an embodiment, the capacitance processing component 200 includes a capacitance acquisition component 220 and a main control unit 240. The capacitance acquisition component 220 is connected to the to-be-measured capacitance component 100 and the main control unit 240. An output of the to-be-measured capacitance component 100 is connected to an input of the capacitance acquisition component 220, and the capacitance acquisition component 220 is connected to an input and an output of the main control unit 240. The capacitance acquisition component 220 may specifically be a touch key IC, a 555 timer, an RC circuit, or any other circuit that can collect capacitance. The capacitance acquisition component 220 converts the capacitance change into an electrical quantity, such as voltage, current, resistance, frequency, phase, and any other electrical quantity, and then the main control unit 240 processes data of the electrical quantity outputted by the capacitance acquisition component 220, so as to achieve the purpose of controlling an external device. In addition, in an embodiment, the capacitance acquisition component 220 may also include a touch key IC and a detection circuit. The touch key IC is connected to the to-be-measured capacitor component 100 through the detection circuit, and the detection circuit may specifically include a capacitor connected in series with or in parallel with the capacitor plate of the to-be-measured capacitor component 100.

[0034] In the sensing and controlling device of the aerosol generating device, one capacitor plate of the to-be-measured capacitor component 100 is arranged on the heating element configured for allowing the atomization substrate to be inserted. The to-be-measured capacitor component 100 generates a capacitance change according to whether the atomization substrate is inserted or not. The capacitance processing component 200 analyzes the state of the atomization substrate according to the capacitance of the to-be-measured capacitor component, and controls the aerosol generating device to heat according to the state of the atomization substrate, thereby realizing the technical effect of automatically controlling heating according to the state of the atomization substrate. There is no need for the user to use a button to start the heating of the aerosol generating device, thereby improving the usage convenience.

[0035] It can be understood that the detailed structure of the to-be-measured capacitor component 100 is not unique. In an embodiment, as shown in FIG. 2, the to-be-measured capacitor component 100 includes a substrate (not shown in the figures), a first capacitor plate 110, and a second capacitor plate 120. The first capacitor plate 110 and the second capacitor plate 120 are distributed on the substrate along an insertion direction of the atomization substrate. The second capacitor plate 120 is arranged on the heating element configured for allowing the atomization substrate to be inserted. Specifically, in some embodiments, a portion of the heating element may be used as the second capacitor plate 120, for example, a top portion of the heating element that extends into the atomization substrate may be used as the second capacitor plate 120, or a portion of the heating element where no atomization substrate is inserted may be used as the second capacitor plate 120. In other embodiments, the entire heating element may also be used as the second capacitor plate 120.

[0036] The substrate is a substrate of non-conductive material, and in the direction in which the atomization substrate is inserted (for example, when inserted vertically), the first capacitor plate 110 and the second capacitor plate 120 are located at different horizontal heights. The structures of the first capacitor plate 110 and the second capacitor plate 120 may be the same or different, and the first capacitor plate 110 and the second capacitor plate 120 may be metal plates or may have mixed structures of non-metal and metal. Furthermore, the first capacitor plate 110 and the second capacitor plate 120 may be arranged on the non-conductive substrate in a manner of laminating, coating or electroplating. The first capacitor plate 110 and the second capacitor plate 120 are used as two plates of the to-be-measured capacitor respectively.

[0037] Specifically, the substrate may be designed as a hollow cylindrical substrate for accommodating the atomization substrate. The first capacitor plate 110 and the second capacitor plate 120 may be specifically located on the inner side of the substrate and distributed longitudinally along the substrate. For example, the cylindrical substrate can be designed to be open at both ends, and then the capacitor plates are arranged on the outer or inner wall surface of the cylindrical substrate. The relative position relationship between the first capacitor plate 110 and the second capacitor plate 120 is not unique. The first capacitor plate 110 and the second capacitor plate 120 may partially overlap or not overlap at all in the insertion direction of the atomization substrate. In an embodiment, as shown in FIG. 2, the first capacitor plate 110 and the second capacitor plate 120 do not overlap at all along the insertion direction of the atomization substrate. Alternatively, in another embodiment, as shown in FIG. 3, the first capacitor plate 110 and the second capacitor plate 120 partially overlap in the insertion direction of the atomization substrate.

[0038] Taking the first capacitor plate 110 and the second capacitor plate 120 not overlapping in the insertion direction of the atomization substrate as an example, the states of the atomization substrate can be divided into two types as shown in FIG. 4 and FIG. 5. As shown in FIG. 4, the atomization substrate X is at least partially received in a substrate containing tube 300 of the aerosol generating device, and no atomization substrate X is inserted into the heating element where the second capacitor plate 120 is located. As shown in FIG. 5, the atomization substrate X is at least partially received in the substrate containing tube 300 of the aerosol generating device, and the atomization substrate X is at least partially (including fully) inserted into the heating element where the second capacitor plate 120 is located. Depending on the different states of the atomization substrate X, the capacitance of the to-be-measured capacitor component 100 will also be different accordingly, and the capacitance processing component 200 can determine the state of the atomization substrate X according to the detected actual capacitance.

[0039] The specific structures of the first capacitor plate 110 and the second capacitor plate 120 are not unique. In an embodiment, as shown in FIGS. 6 and 7, the first capacitor plate 110 is a closed loop plate or a non-closed loop plate. The first capacitor plate 110 can be designed as a completely closed, partially closed or non-closed loop plate. In an embodiment, the first capacitor plate 110 is a metal loop plate. In another embodiment, the first capacitor plate 110 can also include an insulating loop and a metal plate disposed on the insulating loop. The insulating loop can be a plastic loop.

[0040] Furthermore, an outer contour of the first capacitor plate 110 can be in a circular, rectangular, arched, triangular, spiral shape, or in a combination shape of these shapes. In an embodiment, as shown in FIG. 8, the two side-edges of the first capacitor plate 110 can be one or more of linear, nonlinear, planar or non-planar sections.

[0041] In an embodiment, the second capacitor plate 120 is a conical capacitor plate. Specifically, the second capacitor plate 120 can be designed to be a composite plate with a conical structure and other structures. For example, as shown in FIG. 9, the second capacitor plate 120 can be a composite plate with a cone shape and a cylinder shape. Alternatively, as shown in FIG. 10, the second capacitor plate 120 can also be a composite plate with a cone shape and a cuboid shape. It can be understood that in other embodiments, the second capacitor plate 120 can also be a composite plate with a cone shape and other more types of structures. Further, in an embodiment, the second capacitor plate 120 is a metal capacitor plate. In another embodiment, the second capacitor plate 120 can also include an insulator and a metal loop disposed on the insulator. The insulator can specifically be made of ceramic.

[0042] FIG. 11 is a simplified schematic view showing the atomization substrate X inserted into the substrate. The atomization substrate X is equivalent to one plate of a capacitor, thus one capacitor plate A and the atomization substrate X form a capacitor ①, and another capacitor plate B and the atomization substrate X form a capacitor ②. The schematic view of the equivalent capacitors is shown in FIG. 12. The theory formula of capacitance is as follows: C = ε S d

[0043] Where, C denotes a capacitance value, ε denotes a dielectric constant between the capacitor plates, S denotes a plate area, and d denotes a distance between the plates. Since the conductivity of the atomization substrate X is much smaller than those of the capacitor plates A and B, when the atomization substrate X is inserted between the capacitor plates A and B, it is equivalent to changing a dielectric constant ε of the material between the capacitor plates A and B, thereby causing the capacitance between the capacitor plates A and B to be changed. According to whether the capacitance between the capacitor plates A and B changes, it can be detected whether the atomization substrate X is inserted between the capacitor plates A and B or not. Where the atomization substrate X can be a cigarette, a solid medicine, or any other solid substance. In some embodiments, the atomization substrate X can also be a liquid substance contained in a solid container.

[0044] According to different combinations of the to-be-measured capacitor component 100, the to-be-measured capacitor component 100 can be divided into two categories: a solitary component to be measured and a composite component to be measured, and the composite component to be measured can be divided into a series type and a parallel type. In an embodiment, as shown in FIG. 13, the solitary component to be measured only measures the to-be-measured capacitor body, where Cx denotes a capacitor plate. For the series type of the composite component to be measured, as shown in FIG. 14, a capacitor C1 and a capacitor C2 are external measuring capacitors connected in series with the capacitor plate Cx, and specifically, the capacitor C1 and the capacitor C2 are capacitors in the capacitance acquisition assembly 220. The number of capacitors connected in series is not limited, and can be 1, 2 or more, which can be adjusted according to actual needs. In some embodiments, the capacitors connected in series can be finished capacitors produced by a capacitor manufacturer, or can be capacitors constructed by structural parts.

[0045] Further, for the parallel type of the composite component to be measured, as shown in FIG. 15, the capacitor C1 and the capacitor C2 are external measuring capacitors connected in parallel with the capacitor plate Cx, and specifically, the capacitor C1 and the capacitor C2 are capacitors in the capacitance acquisition assembly 220. The number of capacitors connected in parallel is not limited, and can also be 1, 2, or more, which can be adjusted according to actual needs. The capacitors connected in parallel can be finished capacitors produced by a capacitor manufacturer, or capacitors constructed by structural parts.

[0046] As shown in FIGS. 16 and 17, taking the capacitance acquisition component 220 using a touch key IC 222 as an example, the capacitance scanning principle of the touch key IC 222 is divided into mutual capacitance scanning and self-capacitance scanning. The self-capacitance scanning is a scanning manner of self-transmission and self-reception, and the capacitance measured by the touch key IC 222 is the capacitance of an electrode relative to the ground. For mutual capacitance scanning, the touch key IC 222 measures the capacitance between two electrodes. According to different capacitance scanning manners of the touch key IC, the connection between the touch key IC 222 and the to-be-measured capacitor component 100 is divided into following two manners. As shown in FIG. 16, for the self-capacitance scanning manner, one capacitor plate of the to-be-measured capacitor component 100 is connected to the ground, and the other capacitor plate is connected to a signal acquisition input of the touch key IC 222. As shown in FIG. 17, for the mutual capacitance scanning manner, one capacitor plate of the to-be-measured capacitor component 100 is connected to the signal output of the touch key IC 222, and the other capacitor plate is connected to the signal acquisition input of the touch key IC 222.

[0047] The initial capacitance value of the to-be-measured capacitor component 100 is periodically collected and updated by the touch key IC 222, and is set to be the preset capacitance C0. When the atomization substrate is inserted, the capacitance of the to-be-measured capacitor component 100 becomes C1. When the difference between C1 and C0 is greater than the first preset threshold value Cth1, the insertion of the atomization substrate is detected and the heating is started. When the atomization substrate is drawn out, the capacitance of the to-be-measured capacitor component 100 becomes C2. When the difference between C1 and C2 is greater than the second preset threshold value Cth2, the removal of the atomization substrate is detected and the heating is ended.

[0048] Further, the main control unit 240 may include a control chip and discrete devices. The control chip is responsible for collecting data information of the touch key IC 222 and making a control action according to the data information of the touch key IC 222. The discrete devices include power chips, resistors, capacitors, inductors, crystal oscillators, memories, logic gate circuits, etc. that support the operation of the control chip. When the atomization substrate is inserted, the touch key IC 222 will detect the insertion state according to the capacitance change of the to-be-measured capacitor component 100, and the main control unit 240 will start the heating. When the atomization substrate is drawn out, the touch key IC 222 will detect the removal state according to the capacitance change of the to-be-measured capacitor component 100, and the main control unit 240 will end the heating.

[0049] In an embodiment, an aerosol generating device is further provided, and includes the sensing and controlling device above.

[0050] In the aerosol generating device above, one capacitor plate of the to-be-measured capacitor component is arranged on the heating element configured for allowing the atomization substrate to be inserted. The to-be-measured capacitor component generates a capacitance change according to whether the atomization substrate is inserted or not. The capacitance processing component analyzes the state of the atomization substrate according to the capacitance of the to-be-measured capacitor component, and controls the aerosol generating device to heat according to the state of the atomization substrate, thereby realizing an automatic heating control according to the state of the atomization substrate. There is no need for the user to use a button to start the heating of the aerosol generating device, thereby improving the usage convenience.

[0051] The above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combinations of these technical features, the combinations should be considered to be within the scope of this specification.

[0052] The embodiments above only represent several implementation modes of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent. It should be noted that for those ordinary skilled in the art, various modifications and improvements may be made without departing from the concept of the present application, and all these modifications and improvements are within the protection scope of the present application. Therefore, the scope of protection of the patent application should be subject to the appended claims.

Claims

1. A sensing and controlling device for an aerosol generating device, <b>characterized by comprising: a to-be-measured capacitor component, configured to generate a capacitance change according to whether an atomization substrate is inserted or not, one capacitor plate of the to-be-measured capacitor component being arranged on a heating element configured for an insertion of the atomization substrate; and a capacitance processing component, connected to the to-be-measured capacitor component, and configured to analyze a state of the atomization substrate according to capacitance of the to-be-measured capacitor component and control the aerosol generating device to heat according to the state of the atomization substrate.

2. The sensing and controlling device according to claim 1, wherein the capacitance processing component is further configured to control the aerosol generating device to start heating when recognizing that the atomization substrate is inserted according to the capacitance of the to-be-measured capacitor component, and control the aerosol generating device to stop heating when recognizing that the atomization substrate is drawn out according to the capacitance of the to-be-measured capacitor component.

3. The sensing and controlling device according to claim 2, wherein the capacitance processing component is further configured to detect that the atomization substrate is inserted when a difference between the capacitance of the to-be-measured capacitor component and a preset capacitance is greater than a first preset threshold value.

4. The sensing and controlling device according to claim 3, wherein the capacitance processing component is further configured to detect that the atomization substrate is drawn out when a difference between the capacitance of the to-be-measured capacitor component and a capacitance of the to-be-measured capacitor component corresponding to the atomization substrate being detected as being inserted is greater than a second preset threshold.

5. The sensing and controlling device according to claim 1, wherein the to-be-measured capacitor component comprises a substrate, a first capacitor plate, and a second capacitor plate; and the first capacitor plate and the second capacitor plate are distributed on the substrate in an insertion direction of the atomization substrate.

6. The sensing and controlling device according to claim 5, wherein the first capacitor plate is a closed loop plate or a non-closed loop plate.

7. The sensing and controlling device according to claim 5, wherein the first capacitor plate is a metal loop plate.

8. The sensing and controlling device according to claim 5, wherein the first capacitor plate comprises an insulating loop and a metal plate disposed on the insulating loop.

9. The sensing and controlling device according to claim 5, wherein the second capacitor plate is a conical capacitor plate.

10. The sensing and controlling device according to claim 5, wherein the second capacitor plate is a metal capacitor plate.

11. The sensing and controlling device according to claim 5, wherein the second capacitor plate comprises an insulator and a metal loop disposed on the insulator.

12. The sensing and controlling device according to claim 5, wherein the substrate is a substrate of a non-conductive material.

13. The sensing and controlling device according to claim 5, wherein the first capacitor plate and the second capacitor plate are configured not overlap in the insertion direction of the atomization substrate.

14. The sensing and controlling device according to claim 5, wherein the first capacitor plate and the second capacitor plate are configured to partially overlap in the insertion direction of the atomization substrate.

15. The sensing and controlling device according to any one of claims 1 to 14, wherein the capacitance processing component comprises a capacitance acquisition component and a main control unit, and the capacitance acquisition component is connected to the to-be-measured capacitance component and the main control unit.

16. An aerosol generating device, comprising the sensing and controlling device according to any one of claims 1 to 15.

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