Heating assembly and aerosol generating device

Abstract

The invention discloses a heating assembly and an aerosol generating device. The heating assembly comprises a base, an outer tube, an inner tube, a first electrode and a second electrode. Wherein the outer pipe is mounted on the base; the inner pipe comprises a first end and a second end which are opposite to each other, the first end of the inner pipe is arranged in the outer pipe, and the second end of the inner pipe is arranged outside the outer pipe and is movably arranged relative to the base; the first electrode and the second electrode are at least partially arranged in the outer tube, the first electrode and the second electrode are oppositely arranged at an interval, and plasma is generated between the first electrode and the second electrode when the first electrode and the second electrode are electrified. According to the heating assembly provided by the invention, the second end of the inner tube is arranged to be movable relative to the base, so that the inner tube and the outer tube can move at the same part relative to the base under the condition that the outer tube is subjected to transverse acting force in the process of connecting the outer tube and the aerosol forming substrate, the defects such as breakage of the inner tube are not easy to form, and the reliability of the heating assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generating devices, and in particular to a heating component and an aerosol generating device. Background Art

[0002] In the related art, the aerosol generating device includes an outer tube and an inner tube, and the inner tube is at least partially arranged inside the outer tube. The outer tube can be in contact with an aerosol-forming substrate, and the aerosol generating device can heat the aerosol-forming substrate by plasma heating, so that the aerosol-forming substrate forms an aerosol. Since the outer tube is easily subjected to lateral forces during the connection process with the aerosol-forming substrate, the inner tube is easily subjected to forces under the action of the outer tube to form defects such as fracture. Summary of the invention

[0003] The present application provides a heating component and an aerosol generating device.

[0004] The heating component of the embodiment of the present application includes a base, an outer tube, an inner tube, a first electrode and a second electrode, wherein:

[0005] The outer tube is mounted on the base;

[0006] The inner tube comprises a first end and a second end opposite to each other, the first end of the inner tube is arranged inside the outer tube, and the second end of the inner tube is arranged outside the outer tube and is movably arranged relative to the base;

[0007] The first electrode and the second electrode are at least partially arranged in the outer tube, the first electrode and the second electrode are arranged opposite to each other and spaced apart, and plasma is generated between the first electrode and the second electrode when the first electrode and the second electrode are energized.

[0008] The heating component of the embodiment of the present application sets the second end of the inner tube to be movable relative to the base, so that when the outer tube is subjected to a lateral force during the connection between the outer tube and the aerosol forming matrix, the inner tube and the outer tube can move in the same part relative to the base, thereby making it less likely for the inner tube to form defects such as breakage, thereby improving the reliability of the heating component.

[0009] In some embodiments, the base includes a first bracket and a second bracket detachably connected to the first bracket, the first bracket and the second bracket together enclose an installation space, the outer tube is installed on the second bracket and partially arranged in the installation space, and the second end of the inner tube is movably arranged in the installation space.

[0010] In some embodiments, the first bracket includes a bottom wall and a side wall connected to the bottom wall, the second bracket is installed on the side wall, the second end of the inner tube faces the bottom wall and is spaced apart from the bottom wall, the first electrode is partially arranged outside the inner tube from the second end of the inner tube, and the heating component includes a wire, which is electrically connected to the first electrode.

[0011] In some embodiments, the heating component includes a connector connected to one end of the first electrode located outside the inner tube, and one end of the wire is connected to the connector.

[0012] In some embodiments, the heating component includes a fixing member disposed on the bottom wall, and the fixing member is fixedly connected to the wire.

[0013] In some embodiments, the heating component includes a connector connecting the outer wall of the outer tube and the base to limit the axial movement of the outer tube relative to the base along the outer tube.

[0014] In some embodiments, a connector connects the outer tube and the inner tube.

[0015] In some embodiments, the heating component includes an elastic member, which is sleeved outside the outer tube and connects the outer tube and the base.

[0016] In some embodiments, the first electrode is at least partially disposed in the inner tube, and at least a portion of the second electrode is disposed at one end of the inner tube.

[0017] In some embodiments, the heating component includes an insulating member, which is sleeved on the inner tube, and the insulating member surrounds a portion of the first electrode located outside the inner tube.

[0018] The aerosol generating device of the embodiment of the present application includes the heating component of any one of the above embodiments.

[0019] 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

[0020] 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:

[0021] Figure 1 is a schematic structural diagram of an aerosol generating device according to an embodiment of the present application;

[0022] Figure 2 is a schematic structural diagram of a heating component according to an embodiment of the present application;

[0023] Figure 3 yes Figure 2 A schematic diagram of the structure of the heating component from a top view;

[0024] Figure 4 yes Figure 2 A schematic diagram of the structure of the heating component from an upward perspective;

[0025] Figure 5 yes Figure 3 A schematic diagram of the cross-sectional structure of the heating component along the AA direction;

[0026] Figure 6 is a schematic diagram of the exploded structure of the heating component of the embodiment of the present application;

[0027] Figure 7 It is a schematic structural diagram of a base according to an embodiment of the present application;

[0028] Figure 8 yes Figure 3 A schematic diagram of the cross-sectional structure of the heating component along the BB direction;

[0029] Fig. 9 is a cross-sectional schematic diagram of a heating component according to another embodiment of the present application;

[0030] Fig.10 is a schematic structural diagram of an elastic member according to an embodiment of the present application;

[0031] Fig.11 It is a schematic structural diagram of an insulating member according to an embodiment of the present application.

[0032] Description of reference numerals:

[0033] Aerosol generating device 1000, power source 200, aerosol forming matrix 300, control center 400, cover 500;

[0034] Heating component 100, inner tube 10, first end 1031, second end 1032, outer tube 20, tapered end 21, open end 22, first electrode 110, wire 113, second electrode 120, discharge area 130, conductive member 30, connecting wire 33, insulating member 40, connector 50, elastic member 70, connecting member 71, base 90, first bracket 91, bottom wall 911, side wall 912, mounting handle 913, second bracket 92, mounting hole 921, top surface 922, side periphery 923, mounting buckle 924, mounting space 930, first outlet hole 931, second outlet hole 932, fixing member 940, second fixing member 942. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 heat an aerosol generating matrix 300 using plasma to form an aerosol in the aerosol generating device 1000. The aerosol generated in the aerosol generating device 1000 can be used for various purposes such as food, medicine, and industrial production.

[0041] See also Figure 2-Figure 5 The heating component 100 of the embodiment of the present application includes a base 90, an outer tube 20, an inner tube 10, a first electrode 110 and a second electrode 120. The outer tube 20 is mounted on the base 90. The inner tube 10 includes a first end 1031 and a second end 1032 opposite to each other, the first end 1031 of the inner tube 10 is disposed inside the outer tube 20, and the second end 1032 of the inner tube 10 is disposed outside the outer tube 20 and is movably disposed relative to the base 90.

[0042] The first electrode 110 and the second electrode 120 are at least partially disposed in the outer tube 20 . The first electrode 110 and the second electrode 120 are disposed opposite to each other and spaced apart. When the first electrode 110 and the second electrode 120 are energized, plasma is generated between the first electrode 110 and the second electrode 120 .

[0043] It should be noted that the first electrode 110 and the second electrode 120 can be connected to direct current or alternating current. When direct current is applied to the first electrode 110 and the second electrode 120, the first electrode 110 and the second electrode 120 use the direct current to form plasma; when alternating current is applied to the first electrode 110 and the second electrode 120, the first electrode 110 and the second electrode 120 use the alternating current to form plasma.

[0044] The heating component 100 of the embodiment of the present application sets the second end 1032 of the inner tube 10 to be movable relative to the base 90, so that when the outer tube 20 is subjected to a lateral force during the connection between the outer tube 20 and the aerosol-forming matrix 300, the inner tube 10 and the outer tube 20 can move synchronously relative to the base 90, thereby making it difficult for the inner tube 10 to form defects such as breakage, thereby improving the reliability of the heating component 100.

[0045] See also Figure 5 and Figure 6 The outer tube 20 may be a hollow tube, and the two opposite ends of the outer tube 20 in the axial direction may have an opening at one end and a closed end at the other end. The closed end of the outer tube 20 may be inserted into the aerosol-forming substrate 300 and protrude outward to form a tapered end 21. The end of the outer tube 20 with an opening may be an open end 22. The open end 22 is at least partially inserted into the base 90 so that the outer tube 20 can be mounted on the base 90.

[0046] The inner tube 10 may be a hollow tube body, and the first end 1031 and the second end 1032 of the inner tube 10 are two opposite ends of the inner tube 10 in the axial direction. The inner tube 10 extends from the opening of the outer tube 20 into the outer tube 20 and is partially inserted into the outer tube 20. The first end 1031 of the inner tube 10 is completely located in the hollow tube body of the outer tube 20, close to the tapered end 21 of the outer tube 20. The inner tube 10 may be substantially coaxial with the outer tube 20, and extend from the tapered end 21 to the open end 22 in the outer tube 20 along the axial direction of the outer tube 20. The second end 1032 of the inner tube 10 is exposed outside the outer tube 20 from the opening of the outer tube 20, and is inserted into the base 90 along the outer tube 20.

[0047] The inner tube 10 is movable relative to the base 90, which means that the second end 1032 can move relative to the base when the inner tube 10 is subjected to an external force. It should be noted that when the inner tube 10 is not subjected to an external force, the second end 1032 remains fixed relative to the base 90.

[0048] The direction from the tapered end 21 to the open end 22 along the axial direction of the outer tube 20 may be a direction from top to bottom. The upper end of the outer tube 20 is inserted into the aerosol-forming substrate 300, and the lower end is installed in the base 90. The direction from the first end 1031 to the second end 1032 along the axial direction of the inner tube 10 is a direction from top to bottom.

[0049] In the related art, the inner tube is partially inserted into the outer tube, the upper end of the inner tube is inserted into the aerosol-forming matrix along with the outer tube, the lower end of the inner tube is fixed in the base, and the upper end of the outer tube is subjected to a lateral force, which drives the upper end of the inner tube or the whole to tilt relative to the base, so that the upper end of the inner tube is bent relative to the lower end of the inner tube, and the inner tube is easily broken.

[0050] The second end 1032 of the inner tube 10 of the embodiment of the present application is disposed in the base 90 and can move relative to the base 90. The second end 1032 can be translated, rotated, deflected, etc. relative to the base 90. The direction of the second end 1032 movement can be front, back, left, right, up, and down relative to the base 90. For example, when the outer tube 20 is subjected to a lateral force, the outer tube 20 drives the inner tube 10 to tilt relative to the base 90 as a whole, and the second end 1032 of the inner tube 10 can swing left and right relative to the base 90, so that the inner tube 10 as a whole reduces the influence of the force caused by the tilt and is not easy to bend or break.

[0051] In some embodiments, see Figure 5 , the first end 1031 and the second end 1032 of the inner tube 10 both have openings. The second electrode 120 is disposed at the first end 1031, covering the opening of the first end 1031. The first electrode 110 extends into the inner tube 10 from the opening of the second end 1032, and is opposite to and spaced apart from the second electrode 120 by a predetermined distance. The first electrode 110 and the second electrode 120 are respectively connected to the two poles of the power supply 200, and discharge breakdown can occur between the first electrode 110 and the second electrode 120, and plasma is generated by arc discharge. The generation of the arc may be accompanied by a hissing sound. The interval where the first electrode 110 and the second electrode 120 are opposite to and spaced apart from each other in the inner tube 10 is a discharge zone 130, and plasma is generated in the discharge zone 130.

[0052] In some embodiments, see Fig. 9 , the second end 1032 of the inner tube 10 has an opening, the first end 1031 is closed, and the first electrode 110 extends into the inner tube 10 from the opening of the second end 1032 and extends to the first end 1031. The second electrode 120 can be arranged outside the inner tube 10, opposite to the first electrode 110. In the interval where the first electrode 110 and the second electrode 120 are opposite, at least a portion of the inner tube 10 forms a gap with the first electrode 110 and / or the second electrode 120, and plasma is generated in the gap. In this embodiment, plasma is generated between the first electrode 110 and the second electrode 120 through dielectric barrier discharge (DBD). Dielectric barrier discharge is a high-voltage discharge between two electrodes separated by an insulating dielectric barrier layer. The insulating medium is a substance with very low conductivity. The process of dielectric barrier discharge is uniform, stable, and nearly silent.

[0053] It can be understood that plasma is a form of matter that contains a large number of charged particles and neutral atoms and molecules, and maintains electrical neutrality as a whole. Plasma can be generated by gas ionization under the action of an electric field. The plasma generation process can generate a large amount of heat, and the plasma temperature in a stable state can reach more than 1000°C. The heating component 100 of the embodiment of the present application utilizes the plasma generation process and the high temperature of the plasma to heat the aerosol-forming matrix 300, so that the aerosol-forming matrix 300 is atomized to form an aerosol.

[0054] In some embodiments, a working gas may be filled between the first electrode 110 and the second electrode 120, and the working gas is used to ionize and generate plasma. The working gas may be air, nitrogen, argon, carbon dioxide, etc. The outer tube 20 and the base 90 may form a closed space, which may prevent the working gas from leaking out and the byproducts of the ionized working gas from overflowing and causing pollution.

[0055] The inner tube 10 and the outer tube 20 can both be made of materials with relatively high insulation strength, for example, the outer tube 20 and the inner tube 10 can be made of materials such as quartz, ceramics, and quartz glass.

[0056] The first electrode 110 and the second electrode 120 can be made of materials with high conductivity, such as nickel and nickel-based alloys, iron alloys, copper-based alloys, zirconium, hafnium, tungsten and other metal materials or alloy materials. The materials used for the first electrode 110 and the second electrode 120 can match the type of working gas.

[0057] See also Figure 5-Figure 7 In some embodiments, the base 90 includes a first bracket 91 and a second bracket 92 detachably connected to the first bracket 91, the first bracket 91 and the second bracket 92 together enclose an installation space 930, the outer tube 20 is installed on the second bracket 92 and partially disposed in the installation space 930, and the second end 1032 of the inner tube 10 is movably disposed in the installation space 930.

[0058] In this way, the outer tube 20 and the elements disposed in the outer tube 20 can be stably mounted on the base 90 , and the second end 1032 can move within a certain range relative to the base 90 .

[0059] Specifically, one side of the first bracket 91 has an opening, and the second bracket 92 can cover the first bracket 91 to cover the opening of the first bracket 91. The outer tube 20 is installed above the base 90 relative to the base 90, and the lower end of the outer tube 20 is set in the installation space 930. The first bracket 91 and the second bracket 92 can cover each other up and down to form the installation space 930. In some embodiments, the first bracket 91 and the second bracket 92 can also be embedded in the left and right to form the installation space 930, and the outer tube 20 extends from between the first bracket 91 and the second bracket 92 into the installation space 930.

[0060] In some embodiments, the first bracket 91 and the second bracket 92 are overlapped, the second bracket 92 covers the opening on the upper side of the first bracket 91, the outer tube 20 passes through the second bracket 92, and the lower end of the outer tube 20 is inserted into the installation space 930. The center of the second bracket 92 has a mounting hole 921, and the diameter of the mounting hole 921 can match the outer diameter of the outer tube 20. The outer tube 20 can be inserted into the second bracket 92 from the mounting hole 921, and the outer tube 20 has an open end, that is, an open end 22, which extends into the installation space 930. The outer tube 20 stands upright relative to the base 90, and the axial direction of the outer tube 20 can be substantially perpendicular to the top surface 922 of the second bracket 92. The first end 1031 of the inner tube 10 can be located in the outer tube 20, and the second end 1032 can be exposed from the open end 22 outside the outer tube 20 and extend into the installation space 930. The inner tube 10 is coaxial with the outer tube 20, and the inner tube 10 also stands upright relative to the base 90.

[0061] The inner tube 10 is wrapped by the outer tube 20 and extends from the mounting hole 921 into the mounting space 930. The inner tube 10 can maintain a certain gap with both the second bracket 92 and the first bracket 91, and does not directly contact the base 90. The second end 1032 of the inner tube 10 is subjected to the force of the outer tube 20, and can be translated, rotated, deflected, etc. relative to the second bracket 92 and the first bracket 91 along the axial direction or radial direction of the outer tube 20. For example, during the insertion of the outer tube 20 into the aerosol-forming matrix 300, the tapered end 21 is subjected to a certain displacement along the radial direction of the outer tube 20, and the open end 22 is fixed on the base 90. Driven by the displacement of the tapered end 21, the first end 1031 of the inner tube 10 is displaced in the same direction as the tapered end 21, and the second end 1032 can be displaced by a certain distance in the mounting space 930 in the direction opposite to the displacement direction of the first end 1031, so that the inner tube 10 is displaced as a whole with the outer tube 20 and the inner tube 10 remains upright. This movement process can also be regarded as the inner tube 10 swinging relative to the mounting hole 921. It should be noted that the above-mentioned "upright" does not mean vertical, but not bending.

[0062] In some embodiments, the cross-section of the end of the outer tube 20 disposed in the installation space 930 is enlarged relative to the end area that contacts the aerosol-forming matrix 300 to enhance the strength of the end of the outer tube 20 for installation and reduce the possibility of defects such as breakage of the outer tube 20 under the action of lateral forces.

[0063] See also Figure 5 , Figure 7 and Figure 8In some embodiments, the first bracket 91 includes a bottom wall 911 and a side wall 912 connected to the bottom wall 911, the second bracket 92 is installed on the side wall 912, the second end 1032 of the inner tube 10 faces the bottom wall 911 and is spaced apart from the bottom wall 911, the first electrode 110 is partially arranged outside the inner tube 10 from the second end 1032 of the inner tube 10, and the heating component 100 includes a wire 113, which is electrically connected to the first electrode 110.

[0064] In this way, the second end 1032 of the inner tube 10 , the first electrode 110 extending out of the second end 1032 , and the wire 113 may be placed in the base 90 .

[0065] Specifically, the bottom wall 911 and the side wall 912 of the first bracket 91 form a hollow structure with an opening on one side. The second bracket 92 covers the opening of the first bracket 91, is buckled with the side wall 912, and is opposite to the bottom wall 911. The second bracket 92 includes a top surface 922 and a side perimeter 923, and the top surface 922 covers the opening of the first bracket 91 and is opposite to the bottom wall 911. The mounting hole 921 can pass through the center of the top surface 922. The top surface 922, the side wall 912 and the bottom wall 911 together define a mounting space 930. The side perimeter 923 surrounds the top surface 922 and extends from the top surface 922 toward the bottom wall 911.

[0066] In some embodiments, a mounting buckle 924 is provided on the side wall 923, and the mounting buckle 924 may be protruding in a direction away from the mounting space 930. A mounting groove 913 matching the shape of the mounting buckle 924 may be provided on the side wall 912. The second bracket 92 is installed on the side wall 912, and the side wall 923 may be inserted into the mounting space 930 along the side wall 912, and the mounting buckle 924 is engaged with the mounting groove 913 to fix the second bracket 92 with the first bracket 91. This embodiment is a connection method of the components of the base 90, and the connection method between the components of the base 90 may also be bonding, mortise and tenon structure, screw locking, etc.

[0067] The second end 1032 of the inner tube 10 passes through the second bracket 92 from the mounting hole 921 at the center of the second bracket 92, and extends toward the bottom wall 911 along the axial direction of the inner tube 10. The end surface of the second end 1032 is spaced a certain distance from the bottom wall 911. The second end 1032 is also spaced a certain distance from the side wall 912 or the side enclosure 923 along its own circumferential direction.

[0068] Exemplarily, the second end 1032 of the inner tube 10 has an opening, and the first electrode 110 partially extends from the opening of the second end 1032 to the outside of the inner tube 10 and extends into the installation space 930. The portion of the first electrode 110 extending into the inner tube 10 is covered by the inner tube 10, and is opposite to and spaced from the second electrode 120. The portion of the first electrode 110 extending out of the inner tube 10 extends along the axial direction of the inner tube 10 and toward the bottom wall 911, and is spaced a certain distance from the bottom wall 911. Obviously, in the axial direction of the inner tube 10, the distance between the end face of the second end 1032 and the bottom wall 911 is greater than the distance between the end face of the first electrode 110 facing the bottom wall 911 and the bottom wall 911.

[0069] One end of the first electrode 110 facing the bottom wall 911 is electrically connected to the wire 113, and one pole of the power source 200 is connected through the wire 113. The wire 113 is a flexible wire that can connect the first electrode 110 and an output end of the power source 200. One end of the wire 113 extending into the installation space 930 is electrically connected to the first electrode 110, and the other end of the wire 113 can pass through the bottom wall 911 or the side wall 912 and extend to the outside of the heating component 100 to connect to the power source 200.

[0070] See also Figure 5 and Figure 6 In some embodiments, the heating component 100 includes a connector 50 connected to one end of the first electrode 110 located outside the inner tube 10 , and one end of the wire 113 is connected to the connector 50 .

[0071] In this way, the end of the first electrode 110 extending out of the inner tube 10 and the end of the wire 113 electrically connected to the first electrode 110 can be fixed together through the joint 50, so that the electrical connection between the first electrode 110 and the wire 113 remains stable.

[0072] Specifically, the connector 50 is located in the installation space 930, and can be set in the interval between the second end 1032 and the bottom wall 911, extending along the axial direction of the inner tube 10. Along the axial direction of the inner tube 10, the end face of the upper end of the connector 50 can be close to and cover the end face of the second end 1032 facing the bottom wall 911, and there is a certain gap between the end face of the lower end of the connector 50 and the bottom wall 911. The connector 50 can be in the shape of a disk, with a through hole in the center. The first electrode 110 and the wire 113 can be inserted into the connector 50 so that the connector 50 covers the part of the first electrode 110 exposed at the second end 1032. The connector 50 can be a conductive element, electrically connected to the first electrode 110, and connected to one end of the wire 113 at the same time. The first electrode 110 can be connected to the power supply 200 through the connector 50 and the wire 113.

[0073] See also Figure 4 and Figure 5In some embodiments, the heating component 100 includes a fixing member 940 disposed on the bottom wall 911, and the fixing member 940 is fixedly connected to the wire 113. It should be noted that the wire 113 has a certain amount of movement margin between the joint 50 and the fixing member 940, and the portion of the wire 113 that passes through the bottom wall 911 outside the installation space 930 can also move relative to the base 90. The movement margin of the wire 113 between the joint 50 and the fixing member 940 reduces the restriction on the movement of the inner tube 10 when the outer tube 20 and the inner tube 10 are tilted as a whole, and reduces the pulling force of the wire 113 on the inner tube 10.

[0074] In this way, the fixing member 940 limits the movement of the wire 113 on the bottom wall 911 , which can reduce the force on the inner tube 10 caused by the movement of the wire 113 , thereby reducing the probability of defects such as breakage of the inner tube 10 .

[0075] Specifically, a first wire outlet hole 931 may be provided on the bottom wall 911, and the fixing member 940 may be disposed in the first wire outlet hole 931. The fixing member 940 has a passageway that can accommodate the wire 113 passing through the passageway of the fixing member 940. One end of the wire 113 passes through the fixing member 940 and is connected to the connector 50. The first wire outlet hole 931 may be disposed at a position opposite to the second end 1032 along the axial direction of the inner tube 10, and the wire 113 may extend substantially along the axial direction of the inner tube 10 between the fixing member 940 and the connector 50.

[0076] In some embodiments, the fixing member 940 may be a wire card, a wire clamp, etc. The wire 113 passes through the fixing member 940 and is clamped on the bottom wall 911 by the fixing member 940. The position where the wire 113 passes through the bottom wall 911 is fixed by the fixing member 940, so that the movement of the wire 113 relative to the bottom wall 911 is limited by the fixing member 940. The fixing member 940 and the passage size of the fixing member 940 can match the diameter and number of the wire 113.

[0077] The length of the wire 113 between the fixing member 940 and the connector 50 can be slightly greater than the straight-line distance between the fixing member 940 and the connector 50, and the wire 113 between the fixing member 940 and the connector 50 remains loose, so that the wire 113 has a certain margin of movement between the first electrode 110 and / or the connector 50 and the bottom wall 911, and can be offset or twisted relative to the bottom wall 911. It can be understood that the wire 113 moves relative to the bottom wall 911. When the range of movement is too large, the wire 113 is easily tensed by tension, thereby pulling the first electrode 110 and the inner tube 10. Therefore, limiting the movement of the wire 113 relative to the bottom wall 911 by the fixing member 940 can reduce the probability of defects in the inner tube 10 due to force.

[0078] In some embodiments, the fixing member 940 is a conductive element, and the wire 113 is electrically connected to the fixing member 940. The fixing member 940 and the wire 113 can be fixedly connected by welding or the like. The fixing member 940 can be made of a metal or alloy material with good electrical conductivity. The fixing member 940 can be an electrode connector 50 fixed to the base 90, or a pad formed by welding the wire 113 to the bottom wall 911. The fixing member 940 with conductive properties can enhance the fixing effect of the wire 113 and the connector 50, while improving the stability of the electrical connection.

[0079] In other embodiments, when the wire 133 has a sufficient stretching length, the fixing member 940 can be omitted. In this case, the wire 133 can be passed through the bottom wall 911, and a bending, winding or other deformation section can be provided between the connector 50 and the bottom wall 911, so that when the wire 133 is stretched, the wire 133 can be unfolded to reduce the stress on the wire 133 and the connector 50.

[0080] See also Figure 2 and Figure 5 In some embodiments, the second electrode 120 is connected to the other pole of the power source 200 through the connecting wire 33. A second outlet hole 932 may be provided on the side wall 912, and the connecting wire 33 may pass through the side wall 912 from the second outlet hole 932 to connect to the power source 200. A second fixing member 942 may be provided in the second outlet hole 932, and the second fixing member 942 may limit the movement of the connecting wire 33 relative to the base 90. Similarly, the second fixing member 942 may reduce the force applied to the inner tube 10 due to the movement of the connecting wire 33 driving the movement of the second electrode 120, further reducing the possibility of the inner tube 10 breaking.

[0081] The second fixing member 942 is spaced a certain distance from the fixing member 940. Preferably, the insulation distance between the second fixing member 942 and the fixing member 940 is greater than the distance between the first electrode 110 and the second electrode 120, so as to ensure the insulation strength between the connecting wire 33 and the wire 113 and reduce the possibility of discharge and breakdown between the connecting wire 33 and the wire 113 before the first electrode 110 and the second electrode 120.

[0082] In some embodiments, a sufficient insulation distance is maintained between the fixing member 940 and the second fixing member 942. The fixing member 940 can be set on the bottom wall 911, or on the side wall 912 opposite to the second fixing member 942, or can be fixed to a certain position in the installation space 930 relative to the base 90 by a hook, a hanging ring, etc.

[0083] See also Figure 5 and Figure 8In some embodiments, the heating component 100 includes a connector 71 that connects the outer wall of the outer tube 20 and the base 90 to limit the axial movement of the outer tube 20 relative to the base 90 along the outer tube 20 .

[0084] In this way, the connector 71 can provide support for the outer tube 20 during the insertion of the outer tube 20 into the aerosol-forming substrate 300 , maintaining the relative position of the outer tube 20 and the aerosol-forming base 90 and between the outer tube 20 and the base 90 in the axial direction of the outer tube 20 .

[0085] In one example, the connector 71 may be a sleeve having certain elasticity and insulation properties. The connector 71 may be independently formed relative to the base 90 and sleeved on the outer tube 20 through an assembly process.

[0086] In another example, the connector 71 may also be a part formed by curing a thermosetting insulating material poured between the outer tube 20 and the upper base 90. The thermosetting insulating material used for pouring the connector 71 may be selected from polyurethane, silicone, epoxy resin, etc. The thermosetting insulating material is in liquid state in the early stage of the manufacturing or molding process, and can be poured between the outer tube 20 and the second bracket 92, the outer tube 20 and the side wall 912, and the outer tube 20 and the bottom wall 911, and is cured to form the connector 71, and the outer tube 20 and the base 90 are bonded and fixed. The cured connector is insoluble in water and difficult to be melted or softened again. At the same time, the glue pouring can also improve the sealing performance of the outer tube 20 and the base 90, prevent the working gas or discharge odor from overflowing, and prevent moisture and dust.

[0087] The outer tube 20 is inserted into the base 90 from the mounting hole 921 of the second bracket 92, the opening of the open end 22 is opposite to the bottom wall 911 and is spaced a certain distance apart, the outer wall portion of the outer tube 20 is inserted into the base 90, opposite to the side wall 912 or the side enclosure 923, and is spaced a certain distance apart from the side wall 912 and the side enclosure 923. The connecting member 71 connects the outer wall of the outer tube 20 and the base 90, provides support for the outer tube 20, and strengthens the stability of the lower end of the outer tube 20.

[0088] Please continue reading Figure 5 and Figure 8 In some embodiments, the connector 71 connects the outer tube 20 and the inner tube 10 .

[0089] In this way, the inner tube 10 and the outer tube 20 are connected to form a whole through the connecting piece 71, and then connected in an integral manner in the second bracket 92, so that the inner tube 10 and the outer tube 20 can move synchronously relative to the base 90, greatly improving the force strength of the outer tube 20 and significantly reducing the probability of breakage of the inner tube 10.

[0090] In some embodiments, the connector 71 may be a sleeve sleeved on the open end 22, wrapping the open end 22 and the inner tube 10 extending from the open end 22. The connector 71 may be made of an insulating material with a certain elasticity, such as silicone, rubber, etc. The connector 71 with a certain elasticity wraps one end of the outer tube 20 extending into the base 90 and the inner tube 10 extending outside the outer tube 20, connecting the inner tube 10 in the base 90 and the outer tube 20 together.

[0091] In some embodiments, the connector 71 is formed by curing the glue between the top surface 922 and the side enclosure 923 of the second bracket 92, and between the side enclosure 923 and the side wall 912 of the first bracket 91. The connector 71 formed after curing covers the outer wall of the end of the outer tube 20 extending into the base 90 and the outer wall of the inner tube 10 extending from the outer tube 20. The outer tube 20 and the inner tube 10 extending into the installation space 930 are bonded together by the connector 71. Pouring glue in the base 90 can also avoid direct exposure of components and circuits in the base 90, improve the insulation between components and circuits, and facilitate the miniaturization and lightweight of the heating component 100.

[0092] It should be noted that the connector 71 is formed by glue injection, and the glue injected into the base 90 should be prevented from entering the inner tube 10 and the outer tube 20 to prevent the temperature of the heating component 100 from rising and the connector 71 from expanding and contracting, causing the inner tube 10 or the outer tube 20 to burst.

[0093] See also Figure 5 and Fig.10 In some embodiments, the heating component 100 includes an elastic member 70 , which is sleeved outside the outer tube 20 and connects the outer tube 20 and the base 90 .

[0094] In this way, the elastic member 70 can fix the outer tube 20 and improve the mechanical impact resistance of the heating component 100. In some embodiments, the second bracket 92 is filled with glue to form the connecting member 71, and the elastic member 70 can play a sealing role at the mounting hole 921 to prevent the glue from leaking out of the base 90.

[0095] Specifically, the elastic member 70 can be in the shape of a hollow tube, and can be sleeved outside the tube section of the outer tube 20 inserted into the mounting hole 921. The elastic member 70 can be a through tube, and the outer tube 20 is inserted into the elastic member 70. The elastic member 70 has a certain elasticity, wraps the outer tube 20, the inner tube 10 and the first electrode 110, and can be assembled with the outer tube 20 by interference extrusion, thereby improving the coaxiality of the outer tube 20 and the inner tube 10, thereby making the temperature distribution of the heating component 100 more uniform. The second bracket 92, the outer tube 20, the elastic member 70 and the inner tube 10 can be fixedly connected together by the connecting member 71. The elastic member 70 can be made of an insulating material with a certain elasticity, for example, the elastic member 70 is made of rubber, silicone and other materials.

[0096] See also Figure 5 , Figure 6 and Figure 8 In some embodiments, the first electrode 110 is at least partially disposed in the inner tube 10 , and at least a portion of the second electrode 120 is disposed at one end of the inner tube 10 .

[0097] In this way, the first electrode 110 and the second electrode 120 face each other in the inner tube 10 , and a plasma arc is generated in the discharge region 130 between the first electrode 110 and the second electrode 120 to form plasma.

[0098] Exemplarily, the first end 1031 and the second end 1032 of the inner tube 10 may both have openings. The first electrode 110 is columnar, partially inserted into the inner tube 10, and partially exposed from the second end 1032 to the outside of the inner tube 10. One end of the first electrode 110 inserted into the inner tube 10 is spaced a predetermined distance from the end surface of the first end 1031. The portion of the first electrode 110 exposed at the second end 1032 is connected to the wire 113, and is connected to an output end of the power supply 200 through the wire 113. The second electrode 120 is disc-shaped and covers the opening of the first end 1031. The first electrode 110 and the second electrode 120 discharge in the discharge region 130 to generate plasma.

[0099] The second electrode 120 is connected to the other output end of the power source 200 through a conductive member. The conductive member may be coated on the outer wall of the inner tube 10, surround the second electrode 120 at the first end 1031, and be electrically connected to the second electrode 120. The conductive member may extend from the first end 1031 to the second end 1032 along the axial direction of the inner tube 10, and be spaced a predetermined distance from the first electrode 110 exposed at the second end 1032.

[0100] The conductive member includes a connection wire 33, which can connect the conductive member and another output terminal of the power supply 200. It should be noted that the conductive member and the second electrode 120 can be integrally formed components of the same material, or can be two independent parts, and the present application does not limit whether the conductive member and the second electrode 120 are integral or separate.

[0101] The outer tube 20 wraps the first electrode 110, the second electrode 120, the conductive member and the inner tube 10 and is inserted into the second bracket 92. The portion of the first electrode 110 exposed outside the inner tube 10 from the second end 1032 extends into the installation space 930 along the second end 1032, and connects the connector 50 and the wire 113 in the interval between the second end 1032 and the bottom wall 911. The wire 113 can continue to extend along the axial direction of the inner tube 10 between the connector 50 and the fixing member 940, pass through the bottom wall 911 from the fixing member 940, and pass out of the base 90. The conductive member can extend into the installation space 930 along the axial direction of the inner tube 10, and be connected to the connection wire 33 in the installation space 930. The connection wire 33 can extend along the radial direction of the outer tube 20, and pass out of the base 90 from the second fixing member 942 on the side wall 912.

[0102] See also Figure 5 and Fig.11 In some embodiments, the heating component 100 includes an insulating member 40 , which is sleeved on the inner tube 10 , and the insulating member 40 surrounds a portion of the first electrode 110 located outside the inner tube 10 .

[0103] In this way, the insulating member 40 can enhance the insulation strength of the first electrode 110 and other conductive elements and circuits in the base 90 , and reduce the distance between elements in the base 90 to a certain extent, which is conducive to the miniaturization of the heating component 100 .

[0104] Specifically, the insulating member 40 may be a hollow tube, and the inner tube 10 and the first electrode 110 extend from the open end 22 and are disposed in the insulating member 40. The upper edge of the insulating member 40 may form a stepped surface to match the inner tube 10 and the first electrode 110 that extend out of the outer tube 20 at different lengths. The insulating member 40 may cover the end surface of the second end 1032 of the inner tube 10 and cover the outer surface of the portion of the first electrode 110 extending out of the second end 1032.

[0105] The lower edge of the insulating member 40 can be in contact with the first bracket 91 and can move relative to the first bracket 91, so that the inner tube 10, the first electrode 110 and the joint 50 can move relative to the first bracket 91 within a certain range, including but not limited to translation, rotation, deflection, etc. When the outer tube 20 deflects at a certain angle, the first electrode 110, the second electrode 120, the conductive member and the inner tube 10 in the outer tube 20 can deflect together with the outer tube 20, and the force of the bottom wall 911 on the insulating member 40 can be ignored.

[0106] The insulating member 40 may be made of a soft insulating material, such as rubber. The insulating member 40 may be fixed between the portion of the first electrode 110 extending outside the second end 1032 and the second end 1032 by gluing or melting. The insulating member 40 strengthens the connection between the inner tube 10 and the first electrode 110, which is conducive to connecting the outer tube 20, the inner tube 10, the first electrode 110 and other components as a whole, and maintaining synchronous movement under force.

[0107] See also Figure 2 and Figure 6 In some embodiments, the heating component 100 further includes a temperature measuring component 80 connected to the outer tube 20. The temperature measuring component 80 is used to detect the temperature of the outer tube 20. Figure 1 The temperature measuring component 80 can be connected to the control center 400, so that the temperature measuring component 80 can transmit the detected temperature data to the control center 400. The control center 400 adjusts the voltage or output power of the power supply 200 when the temperature is too high or insufficient to control the voltage between the first electrode 110 and the second electrode 120 and adjust the heating temperature.

[0108] Please refer again Figure 1 The aerosol generating device 1000 of the embodiment of the present application includes the heating component 100 of any of the above-mentioned embodiments.

[0109] The aerosol generating device 1000 according to the embodiment of the present application can utilize the plasma in the heating component 100 to heat the aerosol-forming substrate 300 to generate aerosol.

[0110] In some embodiments, the aerosol generating device 1000 may include a battery 210, a transformer 220, a control center 400, a cover 500 and other components. The battery 210 and the transformer 220 may constitute the power source 200 of the heating component 100. Figure 4 The first electrode 110 and the second electrode 120 are respectively connected to the two output ends of the transformer 220, and the high voltage alternating current is conducted to form a high-intensity electric field in the inner tube 10 to generate plasma, thereby generating a high temperature and heat. The heat is transmitted to the aerosol-forming matrix 300 through the inner tube 10 and the outer tube 20. The aerosol-forming matrix 300 absorbs the heat and atomizes to form an aerosol.

[0111] Combination Figure 1 , Figure 2 and Figure 5, the heating component 100 can be fixed on the aerosol generating device 1000 through the base 90. The base 90 can be integrated with the shell of the aerosol generating device 1000. The outer tube 20 and the inner tube 10, the first electrode 110, the second electrode 120 and other components arranged in the outer tube 20 are inserted into the aerosol forming matrix 300, and the outer tube 20 is in direct contact with the aerosol forming matrix 300. The first end 1031 of the inner tube 10 is inserted into the aerosol forming matrix 300 with the outer tube 20, and the second end 1032 is installed in the base 90, and can swing or deflect relative to the base 90. The outer tube 20 is easily subjected to lateral forces and deflected relative to the base 90. The inner tube 10 is connected and fixed to the outer tube 20 to form an integral body, and deflects synchronously with the outer tube 20, thereby reducing the forces on the inner tube 10 alone and reducing the possibility of fracture defects in the inner tube 10.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 representation of the above terms does 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.

[0113] 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: Pedestal; an outer tube, the outer tube being mounted on the base; an inner tube, the inner tube comprising a first end and a second end opposite to each other, the first end of the inner tube being disposed inside the outer tube, and the second end of the inner tube being disposed outside the outer tube and movably disposed relative to the base; A first electrode and a second electrode, wherein the first electrode and the second electrode are at least partially disposed in the outer tube, the first electrode and the second electrode are disposed opposite to each other and spaced apart, and plasma is generated between the first electrode and the second electrode when the first electrode and the second electrode are energized.

2. The heating component according to claim 1, characterized in that: The base includes a first bracket and a second bracket detachably connected to the first bracket, the first bracket and the second bracket jointly enclose an installation space, the outer tube is installed on the second bracket and partially arranged in the installation space, and the second end of the inner tube is movably arranged in the installation space.

3. The heating component according to claim 2, characterized in that: The first bracket includes a bottom wall and a side wall connected to the bottom wall, the second bracket is installed on the side wall, the second end of the inner tube faces the bottom wall and is spaced apart from the bottom wall, the first electrode is partially arranged outside the inner tube from the second end of the inner tube, and the heating component includes a wire, which is electrically connected to the first electrode.

4. The heating component according to claim 3, characterized in that: The heating component includes a joint connected to one end of the first electrode located outside the inner tube, and one end of the wire is connected to the joint.

5. The heating component according to claim 3, characterized in that: The heating component comprises a fixing member arranged on the bottom wall, and the fixing member is fixedly connected to the wire.

6. The heating component according to claim 1, characterized in that: The heating component comprises a connecting piece, and the connecting piece connects the outer wall of the outer tube and the base to limit the axial movement of the outer tube relative to the base along the outer tube.

7. The heating component according to claim 6, characterized in that: The connecting piece connects the outer tube and the inner tube.

8. The heating component according to claim 1, characterized in that: The heating component comprises an elastic member, which is sleeved outside the outer tube and connects the outer tube and the base.

9. The heating component according to claim 1, characterized in that: The first electrode is at least partially disposed in the inner tube, and at least partially disposed in the second electrode at one end of the inner tube.

10. The heating component according to claim 9, characterized in that: The heating component includes an insulating member, which is sleeved on the inner tube and surrounds a portion of the first electrode located outside the inner tube.

11. An aerosol generating device, characterized in that: It comprises the heating component described in any one of claims 1-10.

Images