Heating assembly and aerosol generating device

Abstract

The utility model discloses a heating assembly and an aerosol generating device. The heating assembly comprises a heating element and a capacitor element, the heating element has conductivity, the heating element comprises a first power connection end and a second power connection end spaced from the first power connection end, and the heating element defines a hollow area between the first power connection end and the second power connection end; the capacitor element is connected in series or parallel with the heating element. According to the heating element and the aerosol generating device, the heating element with a specific shape is equivalent to series connection of an inductor and a resistor and series connection or parallel connection of the heating element and a capacitor element to form a resonance circuit when being electrified, so that the heating element can generate heat for heating, the structure of the heating element is simplified, product miniaturization is facilitated, and the production cost is reduced. The structure reliability is high, the cost is low, and the advantages of high efficiency of resistance heating and uniform temperature field of electromagnetic heating are compatible.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and more specifically, to a heating component and an aerosol generating device. Background Art

[0002] In the related art, an inductively heated aerosol generating device needs to be provided with an induction coil and a conductive sensing element, so as to utilize the magnetic field formed when the induction coil is energized to excite the sensing element to generate an induced current and convert the electrical energy into thermal energy for heating. This results in a relatively complex structure of the heating component in the aerosol generating device, which is not conducive to product miniaturization. Utility Model Content

[0003] The embodiments of the present application provide a heating component and an aerosol generating device, and are at least used to simplify the structure of the heating component in the aerosol generating device.

[0004] In the first aspect of the present application, a heating component is provided. The heating component includes a heating element and a capacitor element, wherein the heating element is conductive, includes a first power terminal and a second power terminal spaced from the first power terminal, and the heating element forms a hollow area between the first power terminal and the second power terminal; the capacitor element is connected in series or in parallel with the heating element.

[0005] In the heating element and aerosol generating device of the embodiments of the present application, a heating element of a specific shape is set, so that when the heating element is energized to form a loop, it is equivalent to an inductor and a resistor in series. The heating element and the capacitor element are connected in series or in parallel to form a resonant circuit, so that a resonant current flows through the heating element and an alternating magnetic field can be generated around the heating component, so that the heating component can be heated by the Joule heat in the resonant circuit, the heat generated by the electromagnetic induction of the heating element, and the heat generated when the heating element is magnetized. One heating element can replace the induction coil and the sensed element, thereby simplifying the structure of the heating component, facilitating product miniaturization, high structural reliability, and low cost, while also being compatible with the advantages of high efficiency of resistance heating and uniform temperature field of electromagnetic heating.

[0006] In some embodiments, the heating element is wound between the first power connection end and the second power connection end in a columnar shape, and the first power connection end and the second power connection end are opposite and spaced apart along the circumference of the heating element.

[0007] In this way, the heating element is wound in a columnar shape between the first power terminal and the second power terminal, and the first power terminal and the second power terminal are arranged opposite to each other and spaced apart along the circumference of the heating element, so that a conductive loop extending along the circumference of the heating element is formed between the first power terminal and the second power terminal, thereby increasing the length of the conductive loop, improving the inductance of the heating component, and avoiding a short circuit between the first power terminal and the second power terminal. In addition, winding the heating element in a columnar shape is also conducive to increasing the heating area.

[0008] In some embodiments, the heating element is a sheet-like flat structure, which is an open ring between the first power connection end and the second power connection end, the hollow area is connected to the opening, and the first power connection end and the second power connection end are opposite and spaced at the opening of the heating element.

[0009] In this way, the heating element is flattened in a ring shape between the first power terminal and the second power terminal, and the first power terminal and the second power terminal are arranged opposite to each other and spaced apart at the opening of the ring, so that a curved conductive loop is formed between the first power terminal and the second power terminal, thereby increasing the length of the conductive loop, improving the inductance of the heating component, and avoiding a short circuit between the first power terminal and the second power terminal.

[0010] In some embodiments, one end of the heating element in the height direction is formed as a pointed end.

[0011] In this way, by forming one end of the heating element in the height direction into a pointed end, the heating element can be easily inserted into the aerosol-forming substrate for heating.

[0012] In some embodiments, a plurality of notches are formed at the edge of the heating element, and the notches are arranged at intervals from the first power connection end along the heating element to the second power connection end.

[0013] In this way, a gap is arranged between the first power connection terminal and the second power connection terminal, and the gap is formed at the edge of the heating element, so that when the heating element is powered, the loop formed between the first power connection terminal and the second power connection terminal bends at the gap, thereby increasing the inductance of the heating element, which is beneficial to forming a resonant circuit and adjusting a reasonable resonant frequency.

[0014] In some embodiments, the edge of the heating element includes a first edge and a second edge opposite to the first edge, the first edge faces the hollow area, and the notches on the first edge and the second edge on the same side of the hollow area are arranged alternately along the height direction of the heating element.

[0015] In this way, the notches are staggered along the height direction of the heating element on the first edge or the second edge on the same side, so that the heating element is bent repeatedly along the edge of the notch along the formed conductive loop, further increasing the inductance of the heating element.

[0016] In some embodiments, the heating component further includes a substrate, and the heating element is attached to the surface of the substrate.

[0017] Thus, by attaching the heating element to the surface of the substrate, the heating element can better maintain a specific shape to form a resonant circuit, and is not easily attached to the aerosol-forming matrix when plugging and unplugging. In addition, attaching the heating element to the surface of the substrate also makes the contact area between the heating component and the aerosol-forming matrix as large as possible, which is conducive to improving the heating efficiency.

[0018] In some embodiments, the substrate is cylindrical, and the heating element is wound on the substrate. In other embodiments, the substrate is sheet-shaped, and the heating element and the substrate are stacked.

[0019] In this way, by winding the heating element on the cylindrical substrate, the heating element can better maintain the winding shape, and by stacking with the sheet substrate, the heating element can better maintain the sheet-like flattened structural shape, while ensuring the contact area between the heating component and the aerosol forming matrix, that is, the heating area is large. In addition, the heating element and the substrate are compact in structure, which is conducive to product miniaturization.

[0020] In some embodiments, the heating element is made of a material whose resistance value changes with temperature. In other embodiments, the heating element has magnetic permeability, and the heating element is made of a material whose magnetic permeability or resistance value changes with temperature.

[0021] In this way, by changing the magnetic permeability or resistance value of the heating element when heated, the heating element can feedback the real-time temperature of the heating component, thereby achieving the design purpose of detecting and controlling the temperature by the heating element, replacing the independent temperature sensor, so that the structure of the aerosol generating device is further simplified and the manufacturing cost is further reduced.

[0022] The second aspect of the present application provides an aerosol generating device. The aerosol generating device comprises a heating component of any of the above embodiments, a power supply and a control circuit, wherein the power supply is used to power the aerosol generating device, and the control circuit is electrically connected to the heating component and is used to control the voltage applied to the heating component and / or the current flowing through the heating component.

[0023] The aerosol generating device according to the embodiment of the present application includes the heating component proposed in the first aspect of the present application, and therefore has all the beneficial effects of the heating component.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic structural diagram of a heating component according to an embodiment of the present application;

[0027] Figure 2 is a schematic diagram of a resonant circuit formed by a heating component in an embodiment of the present application;

[0028] Figure 3is a schematic diagram of a resonant circuit formed by a heating component according to another embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0030] Figure 5 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0031] Figure 6 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0032] Figure 7 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0033] Figure 8 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0034] Fig. 9 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0035] Fig.10 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0036] Fig.11 is a schematic structural diagram of a heating component according to another embodiment of the present application;

[0037] Fig.12 It is a control logic diagram of the aerosol generating device according to an embodiment of the present application.

[0038] Description of main component symbols:

[0039] Heating component 100, heating element 10, first power connection terminal 11, second power connection terminal 12, hollow area 103, opening 104, tip 15, notch 106, edge 17, first edge 171, second edge 172, first section 181, second section 182, bent end 19, capacitor element C1, resonant circuit 20, lead 30, substrate 40, second tip 41, reference axis 101, aerosol generating device 1000, power supply 200, control circuit 300. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0045] See also Figure 1 The present application provides a heating component 100 and an aerosol generating device 1000. The heating component 100 is used to generate aerosols by using inductive heating and resistive heating of an aerosol-forming matrix (not shown) in the aerosol generating device 1000. The aerosol-forming matrix is ​​a plant flower, stem or leaf product that has been processed and heated to generate an aerosol. The form of the aerosol-forming matrix can be fully solid, semi-solid or liquid. In the case where the aerosol-generating matrix is ​​fully solid, the aerosol-forming matrix can be prepared by rolling, slurrying, die casting, extrusion and other process methods. The heat generated by the heating component 100 can be effectively utilized by transmitting the heat to the aerosol-forming matrix through heat transfer, heat conduction, heat radiation and the like.

[0046] The aerosol-forming substrate is heated and atomized to form an aerosol, which may be visible or invisible and may include vapor (e.g., fine particulate matter in a gaseous state, which is usually liquid or solid at room temperature) and liquid droplets of gas and condensed vapor. The user can inhale the aerosol into the oral cavity, nasal cavity or lungs through the mouth or nose, and the aerosol inhaled into the user's respiratory system can be used for a variety of purposes such as food, medicine, health care, and entertainment.

[0047] See also Figure 1-Figure 3 The heating component 100 of the embodiment of the present application includes a heating element 10 and a capacitor element C1, wherein the heating element 10 is conductive, includes a first power terminal 11 and a second power terminal 12 spaced apart from the first power terminal 11, and the heating element 10 forms a hollow area 103 between the first power terminal 11 and the second power terminal 12; the capacitor element C1 is connected in series or in parallel with the heating element 10.

[0048] The heating element 10 of the embodiment of the present application is set to a specific shape, so that when the heating element 10 is energized to form a loop, it is equivalent to an inductor and a resistor in series. The heating element 10 and the capacitor element C1 are connected in series or in parallel to form a resonant circuit 20, so that a resonant current flows through the heating element 10 and an alternating magnetic field can be generated around the heating component 100, so that the heating component 100 can be heated by the Joule heat in the resonant circuit 20, the heat generated by the electromagnetic induction of the heating element 10, and the heat generated when the heating element 10 is magnetized. The induction coil and the sensed element can be replaced by one heating element 10, which simplifies the structure of the heating component 100, is conducive to product miniaturization, high structural reliability, and low cost, and at the same time, it is compatible with the advantages of high efficiency of resistance heating and uniform temperature field of electromagnetic heating.

[0049] Specifically, the first power terminal 11 and the second power terminal 12 can be located at the same position in the height direction of the heating element 10, for example, at the bottom or middle section of the heating element 10. The first power terminal 11 and the second power terminal 12 can be opposite to each other in the lateral direction of the heating element 10. The first power terminal 11 and the second power terminal 12 can be the first and last ends of the heating element 10, and the heating element 10 is bent between the first power terminal 11 and the second power terminal 12 to enclose a hollow area 103. The hollow area 103 is a non-closed area, and the hollow area 103 is connected to the interval between the first power terminal 11 and the second power terminal 12. The hollow area 103 is formed by surrounding the heating element 10, and the first power terminal 11 and the second power terminal 12 are spaced from each other, that is, the two parts will not overlap, fit or connect at any position of the heating element 10. The heating element 10 has conductivity between at least the first power terminal 11 and the second power terminal 12, and can be conductive throughout.

[0050] The first power terminal 11 and the second power terminal 12 are connected to the lead 30 respectively, so that a certain voltage is applied to the two ends of the heating element 10, and a special conductive loop is formed between the first power terminal 11 and the second power terminal 12 along the curved shape of the heating element 10, that is, the boundary shape of the hollow area 103. The heating element 10 can be connected to alternating current. Based on the special conductive loop formed by the heating element 10, the heating component 100 is equivalent to an inductor L1 with a small inductance and a resistor R1 with a small resistance, wherein the inductance of L1 is at the nanohenry level, and the resistance of R1 is at the milliohm level. The heating element 10 and the capacitor element C1 are connected in series or in parallel to form a resonant circuit 20.

[0051] The heat generated by the resonant circuit 20 formed by the heating element 10 and the capacitor element C1 in series or in parallel can be obtained at least from the following three aspects: First, when the resonant current flows through the heating component 100, it can be known from Joule's law that a component with a certain resistance value (including the heating element 10) will generate Joule heat. Second, the alternating current in the resonant circuit 20 flowing through the heating component 100 will generate an alternating magnetic field around the heating component 100, and the heating element 10 has magnetic conductivity, so the heating element 10 can be inductively heated when it is placed in an alternating electromagnetic field. Third, based on the hysteresis effect, the magnetization state of the heating element 10 will not change immediately with the change of the magnetic field strength, but there will be a certain delay and lag. Under this phenomenon, the heating element 10 can also generate some heat.

[0052] The end of the heating element 100 away from the first power terminal 11 and the second power terminal 12, for example, the top of the heating element 10 in the height direction can be extended or inserted into the aerosol-forming substrate, and heat is transferred through the contact surface between the heating element 100 and the aerosol-forming substrate to heat the aerosol-forming substrate to generate aerosol. The connection between the first power terminal 11 and the second power terminal 12 and the lead 30 avoids contact with the aerosol-forming substrate.

[0053] It should be noted that the distance between the first power terminal 11 and the second power terminal 12 is relatively small relative to the overall width of the heating element 10 , so as to ensure that the heating area of ​​the heating element 10 is larger.

[0054] See also Figure 1 and Figure 4 In some embodiments, the heating element 10 is wound in a columnar shape between the first power connection end 11 and the second power connection end 12 , and the first power connection end 11 and the second power connection end 12 are opposite and spaced apart along the circumference of the heating element 10 .

[0055] In this way, the heating element 10 is wound in a columnar shape between the first power terminal 11 and the second power terminal 12, and the first power terminal 11 and the second power terminal 12 are arranged opposite to each other and spaced apart along the circumference of the heating element 10, so that a conductive loop extending along the circumference of the heating element 10 is formed between the first power terminal 11 and the second power terminal 12, thereby increasing the length of the conductive loop, improving the inductance of the heating component 100, and avoiding a short circuit between the first power terminal 11 and the second power terminal 12. In addition, winding the heating element 10 in a columnar shape is also conducive to increasing the heating area.

[0056] Specifically, the heating element 10 can be formed by winding a sheet or a plate, and the heating element 10 is wrapped to form a cylindrical hollow area 103. The height direction of the heating element 10 is in the same direction as the central axis of the heating element 10, and the upper and lower end surfaces of the heating component 100 are open. The first power connection terminal 11 and the second power connection terminal 12 serve as the starting end and the end end of the heating element 10 winding, respectively, and are spaced on the outer peripheral surface of the columnar heating element 10. The cross section of the heating element 10 can be enclosed in a circular, elliptical, olive, runway, petal, triangle, quadrilateral, polygonal or other irregular shape with an opening 104, and a combination of the above-mentioned shapes, which is not limited in the embodiments of the present application.

[0057] The first power connection terminal 11 and the second power connection terminal 12 may be opposite to each other at two sides of the hollow area 103 , and the first power connection terminal 11 and the second power connection terminal 12 are located at the same height along the axial direction of the heating element 10 , so as to facilitate processing and assembly.

[0058] Exemplarily, the heating element 10 is cylindrical, and the upper and lower ends of the heating element 10 are open and connected to the hollow area 103. The first power terminal 11 and the second power terminal 12 can both be straight sides of the heating element 10, and the lead 30 can be connected to the middle or bottom of the first power terminal 11 and the second power terminal 12. The opening 104 formed by the first power terminal 11 and the second power terminal 12 is on the side circumference of the heating element 10 and is approximately rectangular, and passes through the upper and lower end surfaces of the heating element 10, and is connected to the hollow area 103. The inner wall surface of the heating element 10 defines a cylindrical hollow area 103, and the hollow area 103 is connected to the outside of the heating element 10 through the opening 104.

[0059] See also Figure 5 In some embodiments, the heating element 10 is a sheet-like flat structure, which is in the shape of a ring with an opening 104 between the first power connection terminal 11 and the second power connection terminal 12, and the hollow area 103 is connected to the opening 104. The first power connection terminal 11 and the second power connection terminal 12 are opposite and spaced at the opening 104 of the heating element 10.

[0060] In this way, the heating element 10 is flattened in a ring shape between the first power terminal 11 and the second power terminal 12, and the first power terminal 11 and the second power terminal 12 are arranged opposite to each other and spaced apart at the ring-shaped opening 104, so that a curved conductive loop is formed between the first power terminal 11 and the second power terminal 12, thereby increasing the length of the conductive loop, improving the inductance of the heating component 100, and avoiding a short circuit between the first power terminal 11 and the second power terminal 12.

[0061] Specifically, the first power connection terminal 11 and the second power connection terminal 12 are located on the same side of the heating element 10 in the height direction, and the opening 104 is also formed at one end of the heating element 10 in the height direction. The heating element 10 is bent between the first power connection terminal 11 and the second power connection terminal 12, and a bent end 19 is formed on a side away from the first power connection terminal 11 and the second power connection terminal 12 in the height direction of the heating element 10. The first power connection terminal 11 and the second power connection terminal 12 are opposite and spaced apart along the width direction of the heating element 10, and can be located at the bottom end of the heating element 10 in the height direction, and the opening 104 is formed at the bottom end of the heating element 10.

[0062] The heating element 10 can be divided into a first section 181 and a second section 182. The first section 181 connects the first power terminal 11 and the bent end 19, and the second end connects the second power terminal 12 and the bent end 19. The first section 181 and the second section 182 are opposite and spaced apart in the lateral direction of the heating element 10, and the interval between the first section 181 and the second section 182 is the hollow area 103.

[0063] The first section 181 and the second section 182 may extend along a straight path or a curved path, for example, Figure 5 As shown, the first section 181 and the second section 182 are both in the shape of long strips, extending linearly along the height direction of the heating element 10 .

[0064] See also Figure 4 and Figure 5 In some embodiments, one end of the heating element 10 in the height direction is formed as a tip 15 .

[0065] In this way, one end of the heating element 10 in the height direction is formed as a pointed end 15, so that the heating element 10 can be easily inserted into the aerosol-forming substrate for heating.

[0066] Specifically, the end of the heating element 10 which is farther from the connection position between the first power connection terminal 11 and the second power connection terminal 12 and the lead wire 30 in the height direction is formed as a tip 15 .

[0067] like Figure 4 As shown, the heating element 10 is wound in a columnar shape, the top of the heating element 10 is wound in a conical hollow tip 15, and the head and tail ends of the winding are not in contact or connected to each other on the circumference of the conical tip 15, the first power connection terminal 11 and the second power connection terminal 12 are located at the bottom of the heating element 10 and are respectively connected to a lead 30, and the lower end surface of the heating element 10 can be completely open.

[0068] like Figure 5As shown, the heating element 10 is a sheet-like flat structure, and the bent end 19 is the tip 15. The side of the bent end 19 away from the first power connection terminal 11 and the second power connection terminal 12 forms a sharp angle. The side edge 17 of the bent end 19 facing the hollow area 103 can be a smooth curved edge, or a straight edge and form a sharp angle.

[0069] See also Figure 6 In some embodiments, a plurality of notches 106 are formed at the edge 17 of the heating element 10 , and the notches 106 are arranged at intervals from the first power connection end 11 along the heating element 10 to the second power connection end 12 .

[0070] In this way, by setting a gap 106 between the first power terminal 11 and the second power terminal 12, the gap 106 is formed at the edge 17 of the heating element 10, so that when the heating element 10 is powered, the loop formed between the first power terminal 11 and the second power terminal 12 is bent at the gap 106, thereby increasing the inductance of the heating element 10, which is beneficial to forming a resonant circuit 20 and adjusting a reasonable resonant frequency.

[0071] Specifically, the edge 17 of the heating element 10 defines the boundary of the heating element 10 between the first power terminal 11 and the second power terminal 12. The edge 17 of the heating component 100 can be a straight edge, a curved edge, or a combination of a straight edge and a curved edge. The edge 17 at the notch 106 can include a curved edge, and the edge 17 spaced between the notches 106 can be a straight edge.

[0072] In one example, the heating element 10 is a sheet-like flat structure, and the first and second sections 181 and 182 are arranged side by side and spaced apart along the width direction of the heating component 100 between the first and second power terminals 11 and 12 and the tip 15. Notches 106 are distributed at the edges 17 of the first and second sections 181 and 182, and the notches 106 are formed by the edges 17 of the first section 181 or the second section 182 being concave toward the middle area of ​​the section. The concave directions of the two adjacent notches 106 in the height direction of the heating element 10 are opposite.

[0073] like Figure 6As shown, with the direction from the first power terminal 11 to the second power terminal 12 as the left-to-right direction, when the first power terminal 11 and the second power terminal 12 are connected to electricity, the conductive loop formed by the heating element 10 first bends to the left at the first notch 106 closest to the first power terminal 11 in the first section 181, then bends to the right at the next notch 106, then repeatedly bends left and right along the concave direction of the notch 106, and turns into the second section 182 along the curved path of the sharp angle at the tip 15, bends to the right at the notch 106 farthest from the second power terminal 12 in the second section 182, then bends at the next notch 106, and repeatedly bends left and right again along the concave direction of the notch 106 until the second power terminal 12. Under the condition that the total length between the first power terminal 11 and the second power terminal 12 remains unchanged, providing a plurality of gaps 106 arranged at intervals can extend the conductive loop and increase the inductance of the heating element 10.

[0074] Please continue reading Figure 6 In some embodiments, the edge 17 of the heating element 10 includes a first edge 171 and a second edge 172 which is opposite to the first edge 171 , the first edge 171 faces the hollow area 103 , and the notches 106 on the first edge 171 and the second edge 172 on the same side of the hollow area 103 are arranged alternately along the height direction of the heating element 10 .

[0075] In this way, the notches 106 are staggered along the height direction of the heating element 10 on the first edge 171 or the second edge 172 on the same side, so that the heating element 10 is repeatedly bent along the edge 17 forming the notch 106 along the formed conductive loop, further increasing the inductance of the heating element 10.

[0076] Specifically, the direction from the first power connection end 11 (or the second power connection end 12) to the tip 15 along the height direction of the heating component 100 is defined as the direction from bottom to top. On the left side of the hollow area 103, the notches 106 are arranged from bottom to top or from top to bottom on the first edge 171 and the second edge 172, respectively, to form a plurality of staggered notches 106. Similarly, on the right side of the hollow area 103, the notches 106 are arranged from bottom to top or from top to bottom on the first edge 171 and the second edge 172, respectively, to form a plurality of staggered notches 106.

[0077] The number of the notches 106 can be one, two, four, eight, ten or more. It should be noted that the area of ​​the notches 106 should not be too large and the number should not be too large, so as to retain a larger surface area of ​​the heating element 10 and ensure that the heating element 10 has a sufficient area for contact and heating with the aerosol-forming substrate.

[0078] See also Figure 7-Figure 11In some embodiments, the heating component 100 further includes a substrate 40 , and the heating element 10 is attached to the surface of the substrate 40 .

[0079] In this way, by attaching the heating element 10 to the surface of the substrate 40, the heating element 10 can better maintain a specific shape to form the resonant circuit 20, and is not easy to stick to the aerosol-forming matrix when plugging and unplugging. In addition, attaching the heating element 10 to the surface of the substrate 40 also makes the contact area between the heating component 100 and the aerosol-forming matrix as large as possible, which is conducive to improving the heating efficiency.

[0080] Specifically, the heating element 10 is attached to the surface of the substrate 40, and the substrate 40 can be filled in the hollow area 103. The heating element 10 and the substrate 40 are inserted into the aerosol-forming matrix at the end away from the lead 30 in the height direction of the heating element 10 to heat and atomize the aerosol-forming matrix. The substrate 40 is made of a material with good insulation and thermal conductivity, for example, quartz, heat-resistant ceramics, etc., and this type of material is easy to shape into a shape matching the heating element 10, and has a certain mechanical strength, is not easy to deform, can help the heating element 10 maintain an ideal shape, and can increase the strength when the heating component 100 is inserted into the aerosol-forming matrix.

[0081] See also Figure 7-Figure 9 In some embodiments, the substrate 40 is cylindrical, and the heating element 10 is wound on the substrate 40 .

[0082] See also Fig.10 and Fig.11 In some other embodiments, the substrate 40 is in a sheet shape, and the heating element 10 and the substrate 40 are stacked.

[0083] Thus, by winding the heating element 10 on the cylindrical substrate 40, the heating element 10 can better maintain the winding shape, and by stacking with the sheet substrate 40, the heating element 10 can better maintain the sheet-like flattened structural shape, while ensuring that the contact area between the heating component 100 and the aerosol-forming matrix, that is, the heating area is large. In addition, the heating element 10 and the substrate 40 are compact in structure, which is conducive to product miniaturization.

[0084] In an example, Figure 7 As shown, the substrate 40 is cylindrical, the heating element 10 is wound on the substrate 40, the substrate 40 is cylindrical and the side surface of the substrate 40 is in contact with the inner surface of the heating element 10. The substrate 40 completely fills the hollow area 103, along the height direction of the heating element 10, the upper end surface of the substrate 40 is higher than the top of the heating element 10, and the lower end surface of the substrate 40 is lower than the bottom of the heating element 10.

[0085] In another example, Figure 8As shown, the substrate 40 is columnar, the heating element 10 is wound on the substrate 40, the end of the heating element 10 away from the first power connection terminal 11 and the second power connection terminal 12 and the connection position of the lead 30 is formed as a tip 15, the substrate 40 can form a conical second tip 41 at the tip 15 (the second tip 41 is almost covered by the heating element 10 and is therefore invisible in the figure), and the tip 15 is attached to the outer peripheral surface of the second tip 41. The first power connection terminal 11 and the second power connection terminal 12 are located at the bottom of the heating element 10, the substrate 40 completely fills the hollow area 103, and along the height direction of the heating element 10, the bottom of the substrate 40 exceeds the position of the bottom of the heating element 10 to play an insulating protection role.

[0086] In another example, Fig. 9 As shown, the substrate 40 is cylindrical, the heating element 10 is wound on the substrate 40, and the end of the substrate 40 away from the connection position of the first power terminal 11 and the second power terminal 12 with the lead 30 can form a second tip 41. Along the height direction of the heating element 10, the second tip 41 of the substrate 40 exceeds the top of the heating element 10, the top of the heating element 10 is flat, and the lower end surface of the substrate 40 is lower than the bottom of the heating element 10.

[0087] In some embodiments, Fig.10 and Fig.11 As shown, the substrate 40 is in the form of a sheet or a plate, and the heating element 10 is a sheet-shaped flat structure, and the heating element 10 is stacked on one side surface of the substrate 40 in the thickness direction. The end of the substrate 40 away from the connection position between the first power terminal 11 and the second power terminal 12 and the lead 30 can form a second tip 41. The outer contour shape of the second tip 41 can be the same as that of the tip 15 and the size is consistent. Fig.12 The second tip 41 is almost covered by the heating element 10, so the second tip 41 is not visible. The first power connection terminal 11 and the second power connection terminal 12 are located at the bottom of the heating element 10, and the substrate 40 completely fills the hollow area 103. In the height direction of the heating element 10, the bottom of the substrate 40 exceeds the bottom of the heating element 10 to play an insulating and protective role. Fig.11 In the illustrated embodiment, the heating element 10 is formed with a plurality of notches 106 , and the substrate 40 is exposed in the notches 106 .

[0088] In some embodiments, a groove (not shown) matching the shape of the heating element 10 is formed on the surface of the substrate 40 , and the heating element 10 is completely accommodated in the groove.

[0089] In this way, the heating element 10 is completely accommodated in the groove, so that the surface of the heating component 100 is flat, thereby facilitating the insertion and removal of the heating component 100 into and from the aerosol-forming matrix, while reducing the amount of aerosol-forming matrix remaining or carried on the surface of the heating component 100.

[0090] Specifically, the groove formed on the surface of the substrate 40 has the same contour shape as the heating element 10, and the depth of the groove is consistent with the thickness of the heating element 10. The notch 106, the opening 104, and the hollow area 103 of the substrate 40 corresponding to the heating element 10, that is, the surface of the substrate 40 not covered by the heating element 10 is convex relative to the groove, so that when the heating element 10 is completely accommodated in the groove, the outer surface of the heating element 10 is flush with the surface of the substrate 40 not covered by the heating element 10, and the contact surface between the heating component 100 and the aerosol-forming substrate is relatively smooth.

[0091] In some embodiments, the heating element 10 is conductive and made of a material whose resistance changes with temperature. In other embodiments, the heating element 10 is magnetically conductive and made of a material whose magnetic permeability or resistance changes with temperature.

[0092] In this way, by changing the magnetic permeability or resistance value of the heating element 10 when heated, the heating element 10 can feedback the real-time temperature of the heating component 100, thereby achieving the design purpose of detecting and controlling the temperature by the heating element 10, replacing the independent temperature sensor, so that the structure of the aerosol generating device 1000 is further simplified and the manufacturing cost is further reduced.

[0093] Specifically, the heating element 10 is made of a material whose magnetic permeability changes with temperature. For example, the heating element 10 can be made of Permalloy or an iron-nickel alloy. The change in the magnetic permeability of the heating element 10 will cause the inductance of the heating element 10 to change accordingly, so that the resonant frequency of the resonant circuit 20 changes, so that the temperature value during the detection can be obtained by detecting the electrical quantity related to the resonant frequency. The electrical quantity related to the resonant frequency includes but is not limited to the resonant current, the voltage value at both ends of the resonant circuit 20, the voltage value at both ends of the heating element 10, etc.

[0094] The heating element 10 may also be made of a magnetically permeable material whose resistivity changes with temperature, and the real-time temperature value may be obtained by detecting the resistance value of the heating element 10 .

[0095] See also Figure 1 , Fig. 9 and Fig.11 In some embodiments, the first power connection terminal 11 and the second power connection terminal 12 are symmetrically arranged along a reference axis 101 , and the reference axis 101 extends along a height direction of the heating element 10 .

[0096] Thus, the first power connection terminal 11 and the second power connection terminal 12 are symmetrically arranged along the reference axis 101, and the reference axis 101 extends along the height direction of the heating element 10, so that the heating element 10 is symmetrically distributed along the reference axis 101 or the plane where the reference axis 101 is located, thereby improving the uniformity of heating.

[0097] Specifically, Figure 1 and Fig.11 As shown, the heating element 10 is columnar, and the reference axis 101 is located between the first power terminal 11 and the second power terminal 12, that is, located on the side circumference of the heating element 10. The heating element 10 is symmetrically distributed along the reference axis 101 or the reference axis 101 and a plane where the heating element 10 is located in a radial direction starting from the reference axis 101. The heating element 10 forms a rotating body, and the heating uniformity is good at various positions in the circumferential direction of the heating element 10. The first power terminal 11 and the second power terminal 12 are symmetrically distributed, thereby forming a symmetrical conductive loop, which is conducive to further improving the heating uniformity.

[0098] like Fig. 9 As shown, the heating element 10 is a sheet-like flat structure, the reference axis 101 is located in the middle of the hollow area 103, and the reference axis 101 passes through the sharp corner origin of the tip 15. The heating element 10 is symmetrically arranged along the reference axis 101, and the notches 106 on the left and right sides of the hollow area 103 are symmetrically distributed about the reference axis 101, thereby forming a conductive loop symmetrical about the reference axis 101, which is conducive to improving heating uniformity.

[0099] In some extended embodiments, the heating element 10 is a sheet-like flat structure, and the notches 106 may be distributed in a centrally symmetrical manner.

[0100] See also Fig.12 The aerosol generating device 1000 of the embodiment of the present application is used to generate aerosol, and the aerosol generating device 1000 includes a heating component 100, a power supply 200 and a control circuit 300 of any of the above-mentioned embodiments, wherein the power supply 200 is used to power the aerosol generating device 1000, and the control circuit 300 is electrically connected to the heating component 100 and is used to control the voltage applied to the heating component 100 and / or the current flowing through it.

[0101] The aerosol generating device 1000 of the embodiment of the present application includes the heating component 100 proposed in the first aspect of the present application, and therefore has all the beneficial effects of the heating component 100.

[0102] Specifically, the heating component 100 forms a resonant circuit 20 by connecting the heating element 10 in series or in parallel with the capacitor element C1. The resonant circuit 20 is connected to the control circuit 300. The control circuit 300 allows the resonant circuit 20 to oscillate stably to achieve heating and temperature control. The heating element 10 can replace the coil, the sensing element and the temperature controller for heating and atomization. The power supply 200 is connected to the resonant circuit 20 and the control circuit 300 and supplies power to the resonant circuit 20 and the control circuit 300.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0104] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heating component, characterized in that: include: A heating element, the heating element having conductivity, comprising a first power connection end and a second power connection end spaced apart from the first power connection end, the heating element forming a hollow area between the first power connection end and the second power connection end; and A capacitor element is connected in series or in parallel with the heating element.

2. The heating component according to claim 1, characterized in that: The heating element is wound between a first power connection end and a second power connection end in a columnar shape, and the first power connection end and the second power connection end are opposite to each other and spaced apart along the circumference of the heating element.

3. The heating component according to claim 1, characterized in that: The heating element is a sheet-like flat structure, and is in an open ring shape between the first power connection end and the second power connection end. The hollow area is connected to the opening, and the first power connection end and the second power connection end are opposite and spaced apart at the opening of the heating element.

4. The heating component according to claim 2 or 3, characterized in that: One end of the heating element in the height direction is formed as a pointed end.

5. The heating component according to claim 3, characterized in that: A plurality of notches are formed at the edge of the heating element, and the notches are arranged at intervals from the first power connection end along the heating element to the second power connection end.

6. The heating component according to claim 5, characterized in that: The edge of the heating element includes a first edge and a second edge opposite to the first edge, the first edge faces the hollow area, and the notches on the first edge and the second edge on the same side of the hollow area are arranged alternately along the height direction of the heating element.

7. The heating component according to claim 1, characterized in that: The heating component also includes a substrate, and the heating element is attached to the surface of the substrate.

8. The heating component according to claim 7, characterized in that: The substrate is in a columnar shape, and the heating element is wound on the substrate; or the substrate is in a sheet shape, and the heating element and the substrate are stacked.

9. The heating component according to claim 1, characterized in that: The heating element is made of a material whose resistance value changes with temperature; or, the heating element has magnetic permeability, and the heating element is made of a material whose magnetic permeability or resistance value changes with temperature.

10. An aerosol generating device for generating aerosol, characterized in that: The aerosol generating device comprises: The heating component according to any one of claims 1 to 9; a power source for powering the aerosol generating device; and A control circuit is electrically connected to the heating component and is used to control the voltage applied to and / or the current flowing through the heating component.

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