Heating element, heating module, atomizer and aerosol generating equipment

Abstract

The invention discloses a heating element, a heating module, an atomizer and aerosol generating equipment, and belongs to the technical field of electronic atomizers. The heating piece comprises a heating part and electric connecting parts, the electric connecting parts are connected to the two opposite ends of the heating part, at least part of installation space is defined by the heating part, and the installation space has the length direction in the first direction and the width direction in the second direction; the heating part is provided with a first heating surface, a second heating surface and a third heating surface; the heating part comprises at least two heating units and reinforcing parts, the heating units are arranged in the first direction at intervals, the heating units are at least partially located on the first heating face and the second heating face, and every two adjacent heating units are connected through the corresponding reinforcing part arranged on the third heating face. According to the heating element provided by the invention, the two adjacent heating units are connected through the reinforcing part, so that the integrity of the heating part can be improved, the heating part is prevented from being deformed in the assembly process, and the taste of a product is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomizers, and in particular to a heating element, a heating module, an atomizer and an aerosol generating device. Background Art

[0002] In existing aerosol generating devices, the heating module is mostly a cotton core, and the heating wire is close to the cotton core. The heating wire is prone to deformation during the assembly process, affecting the taste of the product. Summary of the invention

[0003] The present application provides a heating element, a heating module, an atomizer and an aerosol generating device, which can solve the technical problem that the heating element is easily deformed during the assembly process and affects the taste of the product.

[0004] In order to solve the above technical problems, the heating element provided in the present application includes a heating part and an electrical connecting part, the electrical connecting part is connected to the opposite ends of the heating part, the heating part is surrounded to form at least part of the installation space, and the installation space has a length direction along the first direction and a width direction along the second direction; the heating part has a first heating surface, a second heating surface and a third heating surface, the first heating surface and the second heating surface are arranged opposite to each other in the second direction, and the third heating surface is located between the first heating surface and the second heating surface; the heating part includes at least two heating units and a reinforcement part, the heating units are arranged at intervals in the first direction, the heating units are at least partially located on the first heating surface and the second heating surface, and two adjacent heating units are each connected by a reinforcement part arranged on the third heating surface.

[0005] In one embodiment, the dimension of the reinforcement portion in the second direction is D1, and the dimension of the third heating surface in the second direction is D2, wherein D1 / D2≥0.5.

[0006] In one embodiment, the heating unit includes a first heating segment and a second heating segment, each of which is curved. The first heating segments are arranged at intervals on the first heating surface, and the second heating segments are arranged at intervals on the second heating surface. The free end of the first heating segment and the free end of the second heating segment of each heating unit are connected to the adjacent free ends of the first heating segment and the adjacent free ends of the second heating segment of the adjacent heating unit through a reinforcement portion.

[0007] In one embodiment, the first heating segment on the first heating surface and the corresponding second heating segment on the second heating surface are symmetrically arranged.

[0008] In one embodiment, the heat generating element includes a reinforcement body, which is connected to the electrical connection part, and the heat generating part, the electrical connection part and the reinforcement body are surrounded by an installation space; the reinforcement body includes a first reinforcement section, a second reinforcement section and an installation section, and the first reinforcement section and the second reinforcement section are relatively arranged on both sides of the installation space in the second direction, and the free end of the first reinforcement section and the free end of the second reinforcement section are respectively connected to an installation section bent back to the installation space.

[0009] In one embodiment, the first heating section and the second heating section are both U-shaped or V-shaped.

[0010] The present application provides a heating module, which includes the heating element and an oil guide element as described above. The oil guide element is in a sheet shape and is clamped in the installation space of the heating element.

[0011] In one embodiment, the heating module includes an electrode, and a protrusion is provided at one end of the electrode connected to the electrical connection part, the cross-sectional area of ​​the protrusion is smaller than the cross-sectional area of ​​the connection between the electrode and the protrusion, and the protrusion is inserted in the electrical connection part; or a rivet is provided at one end of the electrode connected to the electrical connection part, and the rivet passes through the electrical connection part to rivet the electrode to the electrical connection part.

[0012] The present application provides an atomizer, which includes an oil cup, an oil guide bracket, an atomizing bracket and the heating module as described above, a suction nozzle is provided at one end of the oil cup, the atomizing bracket is installed in the oil cup at an end away from the suction nozzle, the oil guide bracket cover is provided on the atomizing bracket and forms an atomizing cavity with the atomizing bracket, the heating module is installed in the atomizing cavity, the atomizing cavity is connected to the suction nozzle, and the direction in which external air enters the atomizing cavity is different from the first direction and the second direction.

[0013] The present application also provides an aerosol generating device, which includes the atomizer as described above.

[0014] The heating element provided in the present application comprises a heating portion including at least two heating units and a reinforcing portion. The reinforcing portion is connected between two adjacent heating units, which can improve the integrity of the heating portion and prevent the heating portion from being deformed during the assembly process, thereby ensuring the taste of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of an embodiment of an atomizer provided by the present application;

[0017] Figure 2It is a schematic diagram of the exploded structure of an embodiment of an atomizer provided by the present application;

[0018] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of an atomizer provided by the present application along a viewing angle;

[0019] Figure 4 is a schematic cross-sectional structure diagram of an embodiment of an atomizer provided by the present application along another viewing angle;

[0020] Figure 5 is a structural schematic diagram of an embodiment of an oil guide bracket provided by the present application along a viewing angle;

[0021] Figure 6 is a structural schematic diagram of an embodiment of an oil guide bracket provided by the present application from another viewing angle;

[0022] Figure 7 It is a structural schematic diagram of an embodiment of an atomization bracket provided by the present application;

[0023] Figure 8 It is a structural schematic diagram of an embodiment of a heating element provided by the present application;

[0024] Fig. 9 is a structural schematic diagram of another embodiment of the heating element provided by the present application;

[0025] Fig.10 It is a structural schematic diagram of another embodiment of the heating element provided by the present application;

[0026] Fig.11 It is a schematic diagram of the planar structure of an embodiment of a heating element provided by the present application;

[0027] Fig.12 It is a schematic diagram of the planar structure of another embodiment of the heating element provided by the present application;

[0028] Fig.13 is a schematic diagram of a partial cross-sectional structure of an embodiment of a heating element provided by the present application along a viewing angle;

[0029] Fig.14 is a schematic diagram of a partial cross-sectional structure of another embodiment of a heating element provided by the present application along a viewing angle;

[0030] Fig.15 It is a schematic diagram of a partial cross-sectional structure of an embodiment of a heating module provided by the present application along a viewing angle;

[0031] Fig.16 is a schematic diagram of a partial cross-sectional structure of another embodiment of the heating module provided by the present application along a viewing angle;

[0032] Fig.17It is a schematic cross-sectional structure diagram of an embodiment of an atomizer provided by the present application in which two first air inlet holes are arranged;

[0033] Fig.18 It is a structural schematic diagram of an embodiment of an aerosol generating device provided in the present application. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. The terms "first", "second", and "third" in the embodiments of the present application 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. Thus, the features defined as "first", "second", and "third" can explicitly or implicitly include at least one of the features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The present application provides a nebulizer. Figure 1-Figure 4, the atomizer 100 may include an oil cup 10, an oil guide bracket 20, an atomizing bracket 30 and a heating module 40. A suction nozzle 11 is provided at one end of the oil cup 10, and the atomizing bracket 30 is installed at an end of the oil cup 10 away from the suction nozzle 11. The oil guide bracket 20 is covered on the atomizing bracket 30 and encloses an atomizing chamber 31 with the atomizing bracket 30, and the heating module 40 is installed in the atomizing chamber 31. The atomizing chamber 31 is connected to the suction nozzle 11, thereby forming an air intake channel from the atomizing bracket 30, the atomizing chamber 31, and the oil guide bracket 20 to the suction nozzle 11. The oil guide bracket 20 and the oil cup 10 are surrounded to form an oil storage chamber 12 for storing the atomized matrix. An oil inlet hole 21 is opened on the oil guide bracket 20. The oil guide bracket 20 includes an oil guide portion 22, which is disposed at one end of the oil inlet 21 close to the heating module 40, and the oil guide portion 22 abuts against the heating module 40 to guide the atomized matrix in the oil storage chamber 12 to the heating module 40. The heating module 40 can heat the atomized matrix to produce aerosol, and the aerosol reaches the suction nozzle 11 through the oil guide bracket 20 and the oil cup 10.

[0038] The atomizer 100 provided in the present application, the oil guide bracket 20 includes an oil guide portion 22, the oil guide portion 22 is arranged at one end of the oil inlet hole 21 close to the heating module 40, the oil guide portion 22 abuts against the heating module 40, when the atomized matrix in the oil storage chamber 12 flows from the oil inlet hole 21 to the heating module 40, the atomized matrix can flow along the oil guide portion 22, ensuring smooth oil conduction, making the atomized matrix supply stable, thereby improving the taste of the aerosol generated by atomization.

[0039] Please continue reading Figure 3 In one embodiment, the oil guide portion 22 is matched with the atomizing bracket 30 in a concave-convex manner. Specifically, a groove matching the shape of the oil guide portion 22 is formed in the atomizing bracket 30, and the oil guide portion 22 is embedded in the groove. For example, the oil guide portion 22 can also be engaged in the atomizing bracket 30 or have an interference fit with the atomizing bracket 30. During assembly, the oil guide portion 22 can be inserted into the atomizing chamber 31 to complete the installation of the oil guide bracket 20, making the installation of the oil guide bracket 20 more convenient and quick.

[0040] See also Figure 5 , Figure 6 In one embodiment, a slot 221 is provided on the oil guide portion 22, the slot 221 is connected to the oil inlet hole 21, and the heating module 40 is engaged in the slot 221. With such a configuration, on the one hand, the slot 221 is connected to the oil inlet hole 21, so that the atomized matrix can flow along the oil inlet hole 21 and the inner wall of the slot 221, thereby guiding the flow direction of the atomized matrix and ensuring smooth oil conduction; on the other hand, when the oil guide member of the heating module 40 is made of a flexible material such as fiber cotton, engaging the heating module 40 in the slot 221 can prevent the heating module 40 from shifting, further ensuring smooth oil conduction.

[0041] In one embodiment, if Figure 5As shown, at least one oil guide rib 211 is provided on the inner wall of the oil inlet hole 21, and the oil guide rib 211 extends in the direction of the oil guide portion 22 to guide the atomized matrix to the oil guide portion 22. On the one hand, the oil guide rib 211 can destroy the surface tension of the atomized matrix, so that the atomized matrix can smoothly enter the oil inlet hole 21; on the other hand, a drainage channel is formed between the oil guide rib 211 and the inner wall of the oil inlet hole 21 to guide the atomized matrix to flow to the oil guide portion 22, so that the atomized matrix is ​​supplied stably. The number of oil guide ribs 211 can be multiple, and multiple oil guide ribs 211 are distributed on the inner wall of the oil inlet hole 21 along the annular direction of the oil inlet hole 21, thereby forming multiple drainage channels, so that the atomized matrix flows evenly along the oil inlet hole 21 to the heating module 40.

[0042] See also Figure 3-Figure 7 In one embodiment, the atomizing bracket 30 and the oil guide bracket 20 are respectively provided with a first air inlet hole 32 and a second air inlet hole 23. The first air inlet hole 32 is in communication with the atomizing chamber 31, so that external gas can enter the atomizing chamber 31 from the first air inlet hole 32. An atomizing tube 13 is provided in the oil cup 10, one end of the atomizing tube 13 is connected to the suction nozzle, and the opposite end of the atomizing tube 13 is inserted into the oil guide bracket 20. The atomizing tube 13 is in communication with the second air inlet hole 23, and the aerosol generated in the atomizing chamber 31 can flow through the second air inlet hole 23 and the atomizing tube 13 in sequence to reach the suction nozzle 11.

[0043] The oil cup 10, the oil guide bracket 20 and the atomizer bracket 30 may be made of plastic. When the plastic materials cooperate with each other, there may be a certain gap that affects the air tightness of the atomizer 100. In order to enhance the air tightness of the atomizer 100, a sealing ring may be provided at the abutment between the outer wall of the oil guide bracket 20 and the atomizer bracket 30 and the inner wall of the oil cup 10. The sealing ring may be made of silicone. When the oil guide bracket 20 and the atomizer bracket 30 are assembled into the oil cup 10, the sealing ring is squeezed and elastically deformed, so that the oil guide bracket 20 and the atomizer bracket 30 are interference fit with the oil cup 10, thereby enhancing the air tightness of the atomizer 100.

[0044] In one embodiment, the atomizer 100 is provided with a sealing sleeve 50, such as Figure 3 As shown. The sealing sleeve 50 can be made of silicone. The sealing sleeve 50 is arranged at the connection between the atomizing tube 13 and the oil guide bracket 20, and the sealing sleeve 50 is located between the atomizing tube 13 and the oil guide bracket 20. When the oil guide bracket 20 is assembled into the oil cup 10, the atomizing tube 13 and the oil guide bracket 20 squeeze the sealing sleeve 50 to cause elastic deformation, thereby sealing the oil storage chamber 12 to prevent oil leakage.

[0045] The heating module 40 may include a heating element 41, an oil guide element 42 and two electrodes 43. Figure 2As shown. The oil guide 42 transfers the atomized matrix to the heating element 41, and the heating element 41 heats the atomized matrix to produce aerosol. The electrode 43 is inserted on the atomization bracket 30, and the electrode 43 is connected to the heating element 41. The heating module 40 is connected to the power supply through the electrode 43, so as to provide electrical energy for the heating module 40.

[0046] The oil guide 42 is a porous medium. The oil guide 42 can be a porous fiber material, such as one or more of fiber cotton, non-woven fabrics, linen, chemical fiber fabrics, etc., all of which have good lipophilicity and oil-locking properties. Compared with ceramic materials, fiber materials have small pore sizes and large porosity, making the aerosol generated by atomization more delicate, with full sweetness and aroma. The material of the heating element 41 can be one of stainless steel, nickel-chromium-aluminum alloy, nickel-chromium alloy, iron-chromium-aluminum or titanium alloy, and the heating element 41 can be integrally processed by punching or etching.

[0047] The oil guide member 42 may be in the form of a sheet or a cylinder. In one embodiment, the oil guide member 42 is in the form of a hollow cylinder, and illustratively, the cross section of the oil guide member 42 may be circular or elliptical. The heating element 41 is attached to the inner wall of the oil guide member 42, or the heating element 41 is surrounded by the outer wall of the oil guide member 42. The oil guide member 42 is arranged along the longitudinal direction of the atomizer 100. Optionally, the number of the oil guide members 42 may be two or more.

[0048] In one embodiment, the oil guide member 42 is in the form of a sheet, and the sheet-shaped oil guide member 42 has a smaller size in the thickness direction of the atomizer 100, which is conducive to the flat design of the product. Figure 8 As shown, the oil guide member 42 is clamped in the installation space 44, which can prevent the oil guide member 42 from being deformed.

[0049] The second air inlet 23 is at least partially offset from the oil guide 42 to communicate with the atomizing chamber 31, for example, 6 and Fig.17 As shown, in one embodiment, the radial dimension of the second air inlet 23 is greater than the thickness of the oil guide member 42, so that the second air inlet 23 has a portion facing the oil guide member 42 and portions located on both sides of the thickness direction of the oil guide member 42, and the aerosol can be sucked out from the portions of the second air inlet 23 located on both sides of the thickness direction of the oil guide member 42. That is, the thickness of the oil guide member 42 matches the width of the card slot 221, and the radial dimension of the second air inlet 23 is greater than the width of the card slot 221. It can be understood that the shape of the second air inlet 23 is not limited to a circle, and can also be an ellipse, a polygon, etc. In other embodiments, the second air inlet 23 can also have only a portion located on one side of the oil guide member 42 in the thickness direction.

[0050] For example, Figure 5 and Figure 6There are two oil inlet holes 21, which are distributed on both sides of the second air inlet hole 23, and each oil inlet hole 21 is provided with an oil guide portion 22. The clamping grooves 221 of the two oil guide portions 22 are arranged in a colinear manner, and the two ends of the oil guide member 42 are clamped in the two clamping grooves 221. The middle part of the oil guide member 42 at least partially blocks the second air inlet hole 23, and the second air inlet hole 23 has parts located on both sides of the oil guide member 42 in the thickness direction.

[0051] Please continue reading Figure 8 , the heating element 41 includes a heating portion 411 and two electrical connection portions 412. The two electrical connection portions 412 are respectively connected to the opposite ends of the heating portion 411, and the heating portion 411 is surrounded to form at least part of the installation space 44, and the installation space 44 has a length direction along the first direction and a width direction along the second direction. Generally speaking, the size of the installation space 44 in the first direction is larger than the size in the second direction, that is, the cross-section of the installation space 44 is wide and flat to adapt to the flattened shape of the product. At least part of the heating portion 411 is relatively arranged on both sides of the installation space 44 in the second direction, and is attached to the oil guide member 42. The oil guide member 42 transfers the atomized matrix to the heating portion 411, and the heating portion 411 heats the atomized matrix to generate an aerosol.

[0052] In one embodiment, if Figure 8 As shown, the installation space 44 is U-shaped, and the heating portion 411 has a first heating surface 414 and a second heating surface 415 located on both sides of the U-shaped space, and a third heating surface 416 located on the bottom of the U-shaped space, and the electrical connection portion 412 is arranged on the third heating surface 416. The first heating surface 414 and the second heating surface 415 are respectively at a preset angle with the third heating surface 416. Specifically, the first heating surface 414 and the second heating surface 415 can be substantially perpendicular to the third heating surface 416, so that the first heating surface 414 and the second heating surface 415 are parallel to each other, so as to facilitate the clamping of the oil guide member 42. The heating portion 411 is provided with a plurality of heating surfaces, which increases the contact area between the heating portion 411 and the oil guide member 42, so that the atomized matrix can be atomized at multiple positions to generate aerosols, and the heating efficiency of the heating portion 411 can be improved.

[0053] Please continue reading Figure 8In one embodiment, the heating portion 411 is formed by bending a long strip structure for multiple times to form a first heating surface 414, a second heating surface 415 and a third heating surface 416. Specifically, after the long strip structure is bent, a plurality of inverted U-shaped structures connected to each other can be formed to be arranged on the first heating surface 414 and the second heating surface 415. Among them, the third heating surface 416 is arranged at one end of the heating portion 411 facing the air inlet of the atomizing bracket 30, and the free end surfaces of the first heating surface 414 and the second heating surface 415 away from the third heating surface 416 are directed to the oil guide bracket 20. The direction in which the external air enters the atomizing chamber 31 is different from the first direction and the second direction. Optionally, the direction in which the external air enters the atomizing chamber 31 can be perpendicular to the third heating surface 416. Accordingly, the first heating surface 414 and the second heating surface 415 are parallel to the air inlet direction, so that the aerosol produced by atomization can smoothly reach the suction nozzle 11 along the first heating surface 414 and the second heating surface 415.

[0054] In one embodiment, if Fig. 9 As shown, the heating part 411 includes at least two heating units 417 and a reinforcing part 418, the heating units 417 are arranged in a first direction at intervals, the heating units 417 are at least partially located on the first heating surface 414 and the second heating surface 415, and two adjacent heating units 417 are connected by a reinforcing part 418 arranged on the third heating surface 416. The heating element 41 provided in the present application, the heating part 411 includes at least two heating units 417 and a reinforcing part 418, and the two adjacent heating units 417 are connected by the reinforcing part 418. Compared with the heating part 411 formed by bending a single wire, the reinforcing part 418 is arranged between two adjacent heating units 417 to improve the integrity of the heating part 411, prevent the heating part 411 from being deformed during the assembly process, and thus ensure the taste of the product.

[0055] The reinforcement portion 418 may be in the form of a sheet, see Fig.11 . The dimension of the reinforcing portion 418 in the second direction (the Y direction shown in the figure) is D1, and the dimension of the third heating surface 416 in the second direction is D2. In some embodiments, D1 / D2≥0.5. Studies have found that if D1 / D2 is less than 0.5, the bending rigidity of the heating portion 411 is limitedly improved, and there is a risk of deformation when the heating portion 411 is squeezed during the assembly process. Optionally, D1 / D2 can be 0.5, 0.6, 0.7, 0.8, 0.9, etc., which are not specifically limited here. By setting D1 / D2≥0.5, the reinforcing portion 418 has a larger cross-sectional area, which improves the strength of the heating portion 411, and can further prevent the heating portion 411 from deforming during the assembly process, thereby ensuring the taste of the product.

[0056] In one embodiment, if Fig.12, the dimension of the reinforcing portion 418 in the second direction is equal to the dimension of the third heating surface 416 in the second direction. That is, D1 / D2 is 1.0, and the reinforcing portion 418 is equal in width to the third heating surface 416, which facilitates the processing of the heating element 41.

[0057] Please continue reading Fig. 9 and Fig.10 In one embodiment, the heating unit 417 includes a curved first heating segment 4171 and a second heating segment 4172, each of which is arranged at intervals on the first heating surface 414, and each of which is arranged at intervals on the second heating surface 415. Each of the curved first heating segment 4171 and the second heating segment 4172 has two free ends away from the bent end. Among them, the free end of the first heating segment 4171 and the free end of the second heating segment 4172 of each heating unit 417 are connected to the adjacent free end of the first heating segment 4171 and the adjacent free end of the second heating segment 4172 of the adjacent heating unit 417 through a reinforcing portion 418. The two free ends of the first heating segment 4171 and the two free ends of the second heating segment 4172 of the heating unit 417 located at the upper end in the first direction are respectively connected to the reinforcing portion 418 and the electrical connecting portion 412.

[0058] For the heating part 411 formed by bending a single wire, the heating wire has an equal cross-section, so the resistivity of the heating wire on each heating surface is equal, and the heating temperature is roughly the same, while the third heating surface 416 is relatively far from the oil storage chamber 12, and it is easy to have insufficient supply of atomized matrix, which makes the aerosol produce a sticky smell. In the present application, the first heating section 4171 and the second heating section 4172 are connected in parallel on opposite sides of the reinforcement part 418, and the cross-sectional area of ​​the reinforcement part 418 is significantly larger than the cross-sectional area of ​​the first heating section 4171 and the second heating section 4172, so the resistance of the reinforcement part 418 is much smaller than the resistance of the first heating section 4171 and the second heating section 4172, so that the heating power of the heating part 411 is concentrated on the first heating surface 414 and the second heating surface 415, and the temperature of the third heating surface 416 is relatively low, and the atomized matrix cannot be atomized on the third heating surface 416 to produce aerosol, which can avoid the aerosol from producing a sticky smell.

[0059] In one embodiment, the first heating segment 4171 and the second heating segment 4172 are both U-shaped or V-shaped. Such a configuration makes the first heating segment 4171 and the second heating segment 4172 relatively slender, which can increase the resistance of the heating segment, so that the heating power of the heating part 411 is concentrated on the first heating surface 414 and the second heating surface 415.

[0060] Please continue reading Fig.11. The dimension of the reinforcement part 418 in the first direction (the X direction shown in the figure) is L1; the distance between the outer edges of the free ends of two adjacent first heating segments 4171 is L2, and / or the distance between the outer edges of the free ends of two adjacent second heating segments 4172 is L2. In some embodiments, L1 / L2≥0.9. Studies have shown that if L1 / L2 is less than 0.9, the cross-section of the reinforcement part 418 is small, the bending stiffness is relatively small, the bending stiffness of the heating part 411 is improved to a limited extent, and the heating part 411 is at risk of deformation when squeezed during the assembly process; in addition, the resistance of the reinforcement part 418 is large, and the reinforcement part 418 is connected in series with the heating unit 417 in the circuit, so that the reinforcement part 418 has a large heating power, and the atomized matrix is ​​easily atomized in the reinforcement part 418 located on the third heating surface 416, and a burnt smell is generated due to insufficient supply of the atomized matrix. Optionally, L1 / L2 can be 0.9, 0.95, 1.0, 1.05, 1.1, etc., which are not specifically limited here. By setting L1 / L2≥0.9, the reinforcing portion 418 has a larger cross-sectional area. On the one hand, the strength of the heating portion 411 is improved, which can further prevent the heating portion 411 from deforming during the assembly process and ensure the taste of the product; on the other hand, the resistance and heating power of the reinforcing portion 418 are reduced, and the atomized matrix cannot be atomized on the third heating surface 416 to produce aerosol, which can avoid the aerosol from producing a burnt taste.

[0061] In one embodiment, if Fig.12 , the dimension of the reinforcing portion 418 in the first direction is equal to the distance between the free ends of the two adjacent first heating segments 4171 and the free ends of the second heating segment 4172. That is, L1 / L2 is 1.0, and the outer edge of the reinforcing portion 418 is flush with the free ends of the two adjacent first heating segments 4171 and the free ends of the second heating segment 4172, which can facilitate the processing of the heating element 41.

[0062] In one embodiment, the first heating segment 4171 on the first heating surface 414 and the corresponding second heating segment 4172 on the second heating surface 415 are symmetrically arranged. Fig.11 , Fig.12 As the first heating section 4171 and the second heating section 4172 are symmetrically arranged, the heating temperatures of the first heating surface 414 and the second heating surface 415 are substantially the same, and the atomized matrix can be atomized on the first heating surface 414 and the second heating surface 415 to produce aerosol, thereby ensuring consistency of taste.

[0063] Please continue reading Figure 8In one embodiment, the heating element 41 further includes a reinforcement 413, which is connected to the electrical connection portion 412, and the heating portion 411, the electrical connection portion 412 and the reinforcement 413 are surrounded to form an installation space 44. The reinforcement 413 can be used to install the heating element 41, and specifically, the reinforcement 413 can be used to connect the heating element 41 to the atomization bracket 30. In order to increase the heating power of the heating portion 411, the heating portion 411 is usually a slender structure with low bending rigidity. It is easy to deform during assembly and squeeze the oil guide member 42, resulting in poor oil conduction, thereby affecting the taste of the aerosol generated by atomization. In the present application, reinforcements 413 are provided at both ends of the heating portion 411, and the bending rigidity of the reinforcement 413 can be set to be greater than the bending rigidity of the heating portion 411. The reinforcement 413 forms the skeleton of the heating element 41, which improves the integrity and bending rigidity of the heating element 41. When the heat generating element 41 is squeezed, the reinforcement 413 is supported on the outside of the heat generating portion 411 , thereby preventing the heat generating portion 411 from being deformed.

[0064] The reinforcement body 413 may include a first reinforcement section 4131, a second reinforcement section 4132 and a mounting section 4133. Figure 8 As shown. The first reinforcement section 4131 and the second reinforcement section 4132 are arranged on both sides of the installation space 44 in the second direction, and the installation section 4133 is connected to the first reinforcement section 4131 and the second reinforcement section 4132. Optionally, the first reinforcement section 4131 and the second reinforcement section 4132 are parallel to the first heating surface 414 and the second heating surface 415, respectively. When the heating portion 411 is squeezed, the first reinforcement section 4131 and the second reinforcement section 4132 are supported on the outside of the first heating surface 414 and the second heating surface 415, respectively, so as to prevent the heating portion 411 from being deformed.

[0065] The mounting section 4133 may be formed by bending the first reinforcement section 4131 or the second reinforcement section 4132. The mounting section 4133 may be arranged in a variety of ways. Fig.13 As shown, the mounting section 4133 is perpendicular to the first reinforcement section 4131 or the second reinforcement section 4132. When the heating module 40 is assembled into the atomizing chamber 31, the oil guide bracket 20 is covered on the atomizing bracket 30, and the oil guide bracket 20 presses the mounting section 4133 tightly against the upper edge of the side wall of the atomizing chamber 31, which can prevent the heating module 40 from shifting, thereby ensuring the consistency of the taste of the aerosol generated by atomization. Specifically, at the fitting part of the mounting section 4133, the oil guide bracket 20 and the atomizing bracket 30 can adopt the method of matching the convex and concave parts, so as to improve the reliability of the combination of the two.

[0066] In one embodiment, if Fig.14As shown, the free ends of the first reinforcement section 4131 and the second reinforcement section 4132 are respectively connected to a mounting section 4133 bent away from the mounting space 44, and the two mounting sections 4133 are respectively overlapped on opposite sides of the atomizer bracket 30. The first reinforcement section 4131 and the second reinforcement section 4132 respectively form mounting grooves 4134 with the corresponding mounting sections 4133. When the heating module 40 is assembled into the atomizer chamber 31, the mounting groove 4134 is buckled on the atomizer bracket 30, and a clamping force is generated between the mounting section 4133 and the first reinforcement section 4131 or the second reinforcement section 4132, thereby fixing the heating module 40 on the atomizer bracket 30, and preventing the heating module 40 from shifting.

[0067] The connection between the electrode 43 and the heating element 41 can be welded, plugged or riveted to enhance the reliability of the connection between the electrode 43 and the heating element 41. In one embodiment, the two electrodes 43 are welded to the corresponding electrical connection parts 412. Specifically, during the assembly process, after the heating module 40 is assembled to the atomization chamber 31, laser welding can be used to fix the electrode 43 to prevent the electrode 43 from shifting and ensure the reliability of the connection between the electrode 43 and the heating element 41. Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It can reduce the amount of heat input to the minimum required amount, and the metallographic change range of the heat-affected zone is small, which can prevent the welding operation from affecting other components.

[0068] In one embodiment, if Figure 8 As shown, the electrical connection portion 412 is provided with a mounting hole 4121 , and the mounting hole 4121 is used for mounting the electrode 43 .

[0069] See also Fig.15 In one embodiment, a boss 431 is provided at one end of the electrode 43 connected to the electrical connection portion 412, and the cross-sectional area of ​​the boss 431 is smaller than the cross-sectional area of ​​the connection between the electrode 43 and the boss 431, thereby forming a step surface at one end of the electrode 43 close to the electrical connection portion 412. When the electrode 43 is assembled on the atomizer bracket 30, the boss 431 is inserted into the electrical connection portion 412. Specifically, the boss 431 can be inserted into the mounting hole 4121. The outer periphery of the boss 431 and the step surface at the end of the electrode 43 can both contact the electrical connection portion 412, thereby increasing the contact area between the electrode 43 and the electrical connection portion 412 and enhancing the reliability of the connection between the electrode 43 and the heating element 41.

[0070] In one embodiment, if Fig.16As shown, a rivet 432 is provided at one end of the electrode 43 connected to the electrical connection portion 412, and the rivet 432 passes through the electrical connection portion 412 to rivet the electrode 43 to the electrical connection portion 412. Specifically, the rivet 432 can pass through the mounting hole 4121 to rivet the electrode 43 to the electrical connection portion 412. By providing the rivet 432 to fix the electrode 43 to the electrical connection portion 412, the electrode 43 can be prevented from falling off, thereby ensuring the reliability of the connection between the electrode 43 and the heating element 41.

[0071] Please continue reading Figure 3 In one embodiment, there are two oil inlet holes 21, which are distributed on both sides of the second air inlet hole 23. The two ends of the atomizer bracket 30 have bosses 33, and the two electrical connection parts 412 are located above the bosses 33. The electrode 43 passes through the bosses 33 and is connected to the electrical connection parts 412. In this way, the size of the oil guide bracket 20 in the thickness direction of the atomizer 100 can be reduced, which is conducive to realizing the flat design of the product.

[0072] The first air inlet 32 ​​can be arranged at the middle position of the bottom of the atomizing bracket 30, that is, the first air inlet 32 ​​is directly opposite to the middle position of the third heating surface 416 at the bottom of the heating element 41. Figure 4 As shown. At this time, the first air inlet 32 ​​and the third heating surface 416 are arranged opposite to each other, and the external air entering the atomization chamber 31 from the first air inlet 32 ​​drives the aerosol generated by the atomization of the third heating surface 416 to flow toward the suction nozzle 11. Since the first air inlet 32 ​​is arranged in the middle of the bottom of the atomization bracket 30, the space required for the first air inlet 32 ​​is relatively small, which can reduce the thickness of the atomizer 100 in the second direction, which is conducive to the flat design of the product. However, due to the obstruction of the third heating surface 416, the first heating surface 414 and the second heating surface 415 are not in sufficient contact with the external air, and the atomization of the atomization matrix is ​​mainly concentrated on the third heating surface 416, and the third heating surface 416 is relatively far from the oil storage chamber 12, resulting in insufficient supply of the atomization matrix, which makes the aerosol easy to produce a burnt taste.

[0073] To prevent the aerosol from having a burnt smell, in one embodiment, Fig.17 As shown, two first air inlet holes 32 are provided on the atomizing bracket 30, and the two first air inlet holes 32 are respectively arranged corresponding to the first heating surface 414 and the second heating surface 415. By providing two first air inlet holes 32, the third heating surface 416 can be prevented from being blocked, so that the first heating surface 414 and the second heating surface 415 are fully in contact with the external air, and the atomizing matrix can be fully atomized on the first heating surface 414 and the second heating surface 415 to produce aerosol, thereby improving the taste of the aerosol.

[0074] The present application provides an aerosol generating device. Fig.18The aerosol generating device 300 may include the atomizer 100, the control component 310 and the power component 320 as described above. The control component 310 may control the atomizer 100 to be connected or disconnected with the power component 320 according to the suction action, so as to control the atomizer 100 to heat the atomized matrix to generate aerosol or stop heating. Specifically, when inhaling through the mouthpiece 11, the control component 310 senses the negative pressure in the aerosol generating device 300, and the control component 310 controls the atomizer 100 to be connected with the power component 320, and the heating module 40 to heat the atomized matrix to generate aerosol; when the inhalation stops, the control component 310 controls the atomizer 100 to be disconnected with the power component 320, and the heating module 40 stops heating the atomized matrix.

[0075] Optionally, the atomizer 100 and the power supply assembly 320 are configured to be detachable. When the remaining amount of the atomized substrate in the atomizer 100 is less than a preset value, the user can replace the atomizer 100 to prevent the atomizer 100 from burning dry and causing a burnt smell. Accordingly, when the aerosol generating device 300 is underpowered, the user can replace the power supply assembly 320 to ensure the normal use of the aerosol generating device 300.

[0076] The heating element, heating module, atomizer and aerosol generating device provided in the present application have at least the following beneficial effects:

[0077] 1. The heating part 411 includes at least two heating units 417 and a reinforcing part 418. Two adjacent heating units 417 are connected by the reinforcing part 418, which can improve the integrity of the heating part 411 and prevent the heating part 411 from being deformed during the assembly process, thereby ensuring the taste of the product.

[0078] 2. The dimension of the reinforcing portion 418 in the second direction is D1, and the dimension of the third heating surface 416 in the second direction is D2, and D1 / D2≥0.5, so that the reinforcing portion 418 has a larger cross-sectional area, which improves the strength of the heating portion 411 and can further prevent the heating portion 411 from deformation during the assembly process, thereby ensuring the taste of the product.

[0079] 3. The heating unit 417 includes a first heating segment 4171 and a second heating segment 4172 which are curved. The first heating segment 4171 and the second heating segment 4172 are connected in parallel on opposite sides of the reinforcing portion 418. The cross-sectional area of ​​the reinforcing portion 418 is significantly larger than the cross-sectional areas of the first heating segment 4171 and the second heating segment 4172, so that the heating power of the heating portion 411 is concentrated on the first heating surface 414 and the second heating surface 415, thereby preventing the aerosol from generating a burnt smell.

[0080] 4. The first heating segment 4171 on the first heating surface 414 and the corresponding second heating segment 4172 on the second heating surface 415 are symmetrically arranged, so that the heating temperatures of the first heating surface 414 and the second heating surface 415 are substantially the same, thereby ensuring consistency in taste.

[0081] 5. Reinforcements 413 are provided at both ends of the heating portion 411 to improve the integrity and bending rigidity of the heating element 41 and prevent the heating portion 411 from being deformed during assembly.

[0082] 6. The reinforcement body 413 includes a mounting section 4133 connected to the first reinforcement section 4131 and the second reinforcement section 4132, which is used to mount the heating element 41, thereby preventing the heating module 40 from shifting, thereby ensuring the consistency of the taste of the aerosol generated by atomization.

[0083] The above descriptions are only some embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heating element for heating an atomized substrate to generate an aerosol, characterized in that: include: A heating portion and an electrical connection portion, wherein the electrical connection portion is connected to two opposite ends of the heating portion, the heating portion is surrounded to form at least a portion of an installation space, and the installation space has a length direction along a first direction and a width direction along a second direction; The heating portion comprises a first heating surface, a second heating surface and a third heating surface, the first heating surface and the second heating surface are arranged opposite to each other in the second direction, and the third heating surface is located between the first heating surface and the second heating surface; The heating part includes at least two heating units and a reinforcement part. The heating units are arranged at intervals in the first direction. The heating units are at least partially located on the first heating surface and the second heating surface. Two adjacent heating units are connected by each reinforcement part arranged on the third heating surface.

2. The heating element according to claim 1, characterized in that: The dimension of the reinforcement portion in the second direction is D1, and the dimension of the third heat generating surface in the second direction is D2, wherein D1 / D2≥0.

5.

3. The heating element according to claim 1, characterized in that: The heating unit includes a first heating segment and a second heating segment, each of which is curved. The first heating segments are arranged at intervals on the first heating surface, and the second heating segments are arranged at intervals on the second heating surface. The free ends of the first heating segment and the second heating segment of each heating unit are connected to the adjacent free ends of the first heating segment and the adjacent free ends of the second heating segment of the adjacent heating unit through a reinforcing portion.

4. The heating element according to claim 3, characterized in that: The first heating segment on the first heating surface and the corresponding second heating segment on the second heating surface are symmetrically arranged.

5. The heating element according to claim 1, characterized in that: The heating element comprises a reinforcement body, the reinforcement body is connected to the electrical connection part, and the heating part, the electrical connection part and the reinforcement body are surrounded to form the installation space; The reinforcement body includes a first reinforcement segment, a second reinforcement segment and an installation segment. The first reinforcement segment and the second reinforcement segment are relatively arranged on both sides of the installation space in the second direction. The free end of the first reinforcement segment and the free end of the second reinforcement segment are respectively connected to an installation segment bent back to the installation space.

6. The heating element according to claim 3, characterized in that: The first heating section and the second heating section are both U-shaped or V-shaped.

7. A heating module, characterized in that: include: The heating element and the oil guide element as described in any one of claims 1 to 6, wherein the oil guide element is in the form of a sheet and is clamped in the installation space of the heating element.

8. The heating module according to claim 7, characterized in that: The heating module comprises an electrode, one end of the electrode connected to the electrical connection portion is provided with a convex column, the cross-sectional area of ​​the convex column is smaller than the cross-sectional area of ​​the connection between the electrode and the convex column, and the convex column is inserted in the electrical connection portion; or, A rivet is provided at one end of the electrode connected to the electrical connection part, and the rivet passes through the electrical connection part to rivet the electrode to the electrical connection part.

9. An atomizer, characterized in that: include: An oil cup, an oil guide bracket, an atomization bracket and a heating module as described in any one of claims 7 to 8, wherein a suction nozzle is provided at one end of the oil cup, the atomization bracket is installed in the oil cup at an end away from the suction nozzle, the oil guide bracket cover is provided on the atomization bracket and forms an atomization cavity with the atomization bracket, the heating module is installed in the atomization cavity, the atomization cavity is connected to the suction nozzle, and the direction in which external air enters the atomization cavity is different from the first direction and the second direction.

10. An aerosol generating device, characterized in that: Comprising the atomizer as claimed in claim 9.

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