Heating body, atomization assembly, atomizer and electronic atomization device

Abstract

The invention discloses a heating body, an atomization assembly, an atomizer and an electronic atomization device, the heating body comprises a heating part, the heating part is tubular, the heating part comprises a first terminal and a second terminal, and the first terminal and the second terminal are arranged at intervals in the circumferential direction of the heating part; the heating part further comprises a first heating wire and a second heating wire, the first heating wire and the second heating wire extend in the circumferential direction of the heating part and are electrically connected to the two sides of the first terminal respectively, the end, away from the first terminal, of the first heating wire is electrically connected with the second terminal, and the end, away from the first terminal, of the second heating wire is electrically connected with the second terminal. Through the arrangement, the first heating wire, the second heating wire and the terminal form a circumferential continuous supporting structure, the overall structural strength of the heating body is improved, the problem of deformation caused by discontinuous circumferential structure of the heating body in the prior art is solved, the area of a non-heating area is reduced to the maximum extent, and the heating efficiency of the heating body is improved.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a heating element, an atomization component, an atomizer and an electronic atomization device. Background Art

[0002] Mesh heating element is a heating element obtained by chemical etching, laser / mechanical engraving, etc. of metal plates or metal tubes. In the field of electronic atomization technology, compared with other heating elements, its atomized aerosol has obvious advantages in taste evaluation indicators such as aroma restoration, aroma concentration, and aroma fineness. Therefore, it has been more widely used.

[0003] However, in the prior art, the Mesh heating element has low structural strength and is easy to deform, which easily leads to the problem of inconsistent assembly of the heating element, and the non-heating area is large and the heating efficiency is low. Summary of the invention

[0004] The present application mainly provides a heating element, an atomization assembly, an atomizer and an electronic atomization device to solve the problems of low structural strength and low heating efficiency of Mesh heating elements in the prior art.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: providing a heating body, the heating body comprising a heating part, the heating part being tubular; the heating part comprising a first terminal and a second terminal, the first terminal and the second terminal being arranged at intervals along the circumference of the heating part; the heating part also comprising a first heating wire and a second heating wire, the first heating wire and the second heating wire both extending along the circumference of the heating part and being electrically connected to both sides of the first terminal respectively, the end of the first heating wire away from the first terminal being electrically connected to the second terminal, and the end of the second heating wire away from the first terminal being electrically connected to the second terminal.

[0006] The heating portion is in a circular tube shape, and the first terminal and the second terminal both extend along the axial direction of the heating portion.

[0007] Wherein, the heating element further comprises a first lead and a second lead, the first lead is electrically connected to the first terminal, and the second lead is electrically connected to the second terminal; Wherein,

[0008] The first lead and the second lead extend along the axial direction of the heat generating portion toward the same side of the heat generating portion; or,

[0009] The first lead and the second lead extend toward opposite sides of the heat generating portion along an axial direction of the heat generating portion.

[0010] Wherein, the heating element further comprises a first support ring; along the axial direction of the heating portion, the first support ring is coaxially arranged on a first side of the heating portion; the first support ring is connected to one end of the second terminal, and is spaced apart from the first heating wire, the second heating wire and the first terminal; and / or,

[0011] The heating element also includes a second support ring; along the axial direction of the heating part, the second support ring is coaxially arranged on the second side of the heating part; the second support ring is connected to one end of the first terminal, and is spaced apart from the first heating wire, the second heating wire and the second terminal.

[0012] The first heating wire is bent multiple times and extends along the circumference of the heating portion, and the second heating wire is bent multiple times and extends along the circumference of the heating portion.

[0013] Wherein, the first heating wire comprises a plurality of first sub-heating wires, and the plurality of first sub-heating wires are arranged at intervals along the axial direction of the heating portion; one end of the plurality of first sub-heating wires is connected to the first terminal, and the other end is connected to the second terminal; and / or,

[0014] The second heating wire includes a plurality of second sub-heating wires, which are spaced apart along the axial direction of the heating portion; one end of each of the second sub-heating wires is connected to the second terminal, and the other end of each of the second sub-heating wires is connected to the first terminal.

[0015] Wherein, the first heating wire comprises a plurality of first sub-heating wires, at least one reinforcing rib is arranged between two adjacent first sub-heating wires; the first sub-heating wire is bent and extended multiple times along the circumference of the heating portion, the reinforcing rib is parallel to the axial direction of the heating portion, and both ends of the reinforcing rib are respectively connected to two adjacent first sub-heating wires; and / or,

[0016] The second heating wire includes a plurality of second sub-heating wires, and at least one reinforcing rib is arranged between two adjacent second sub-heating wires; the second sub-heating wire extends in multiple bends along the circumference of the heating portion, the reinforcing rib is parallel to the axial direction of the heating portion, and both ends of the reinforcing rib are respectively connected to two adjacent second sub-heating wires.

[0017] Wherein, the first heating wire comprises a plurality of first sub-heating wires, and the plurality of first sub-heating wires are symmetrically arranged; and / or,

[0018] The second heating wire includes a plurality of second sub-heating wires, and the plurality of second sub-heating wires are symmetrically arranged.

[0019] Wherein, the first heating wire and the second heating wire are symmetrically arranged.

[0020] Wherein, the heating element is an integrally formed metal mesh; or

[0021] The heating element is formed by curling a flat metal mesh and fixing both ends thereof together.

[0022] In order to solve the above technical problems, another technical solution adopted by the present application is: providing a heating element, the heating element comprising a heating portion, the heating portion being in a plane or arc shape; the heating portion comprising a first terminal and two second terminals spaced apart along the first direction, the first terminal being located between the two second terminals and arranged parallel to the second terminals; the first terminal and the two second terminals both extending along the second direction;

[0023] The heating part also includes a first heating wire and a second heating wire, the first heating wire and the second heating wire both extend along the first direction and are respectively located on both sides of the first terminal; one end of the first heating wire is electrically connected to the first terminal, and the other end is electrically connected to one of the second terminals; one end of the second heating wire is electrically connected to the first terminal, and the other end is electrically connected to another of the second terminals.

[0024] Wherein, the heating element further comprises a first support bar, the first support bar extends along the first direction, and the two ends of the first support bar are respectively connected to the two second terminals; along the second direction, the first support bar is located on the first side of the heating part and is spaced apart from the first heating wire, the second heating wire and the first terminal; and / or,

[0025] The heating element also includes a second support bar, which extends along the first direction, the middle part of the second support bar is connected to the first terminal and the two ends of the second support bar are free ends; along the second direction, the second support bar is located on the second side of the heating part and is spaced apart from the first heating wire, the second heating wire and the first terminal.

[0026] Wherein, the heating element is an integrally formed metal mesh.

[0027] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an atomization component, including:

[0028] Porous matrix;

[0029] The heating element is arranged on the porous substrate, and the heating element includes any one of the heating elements described above.

[0030] Wherein, the porous matrix is ​​in a tubular shape, and the heating element is coaxially arranged with the porous matrix.

[0031] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an atomizer, comprising:

[0032] A shell body having an air outlet pipe therein;

[0033] A base, at least partially disposed in the shell, cooperates with the shell to form a liquid storage cavity, wherein the liquid storage cavity is used to store the aerosol generating matrix; the base is provided with an air inlet hole;

[0034] An atomizer assembly, comprising any one of the atomizer assemblies described above; the atomizer assembly is arranged in the housing and is located on a side of the base close to the air outlet pipe; the atomizer assembly also includes a liquid inlet pipe, the liquid inlet pipe is sleeved on the outer wall surface of the porous matrix and is connected to the air outlet pipe; the side wall of the liquid inlet pipe is provided with at least one liquid inlet hole, and the liquid inlet hole fluid connects the porous matrix and the liquid storage chamber;

[0035] Wherein, the first lead and the second lead both extend along the axial direction of the heating element and toward a side of the heating element close to the air inlet.

[0036] In order to solve the above technical problems, another technical solution adopted by the present application is to provide an electronic atomization device, comprising:

[0037] Atomizer, including the atomizer as described above;

[0038] The host comprises a power supply, and the first lead and the second lead of the atomizing assembly are electrically connected to the positive electrode and the negative electrode of the power supply respectively.

[0039] The beneficial effects of the present application are as follows: Different from the prior art, the present application discloses a heating element, an atomization assembly, an atomizer and an electronic atomization device, wherein the heating element comprises a heating portion, the heating portion is tubular, the heating portion comprises a first terminal and a second terminal, the first terminal and the second terminal are arranged at intervals along the circumference of the heating portion; the heating portion also comprises a first heating wire and a second heating wire, the first heating wire and the second heating wire both extend along the circumference of the heating portion and are electrically connected to the two sides of the first terminal respectively, the end of the first heating wire away from the first terminal is electrically connected to the second terminal, and the end of the second heating wire away from the first terminal is electrically connected to the second terminal. Through the above arrangement, the first heating wire, the second heating wire and the terminal form a circumferential continuous support structure, which is beneficial to improve the overall structural strength of the Mesh heating element, solves the deformation problem caused by the discontinuity of the circumferential structure of the Mesh heating element in the prior art, and minimizes the area of ​​the non-heating area, thereby improving the heating efficiency of the Mesh heating element. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0041] Figure 1 is a schematic structural diagram of the electronic atomization device provided in the first embodiment of the present application;

[0042] Figure 2 yes Figure 1 A schematic diagram of the structure of an atomizer of the provided electronic atomization device;

[0043] Figure 3 yes Figure 2 A schematic cross-sectional view of the atomizer is provided;

[0044] Figure 4 yes Figure 3 A schematic diagram of the structure of an atomizer assembly of the provided atomizer;

[0045] Figure 5 yes Figure 4 A schematic diagram of the exploded structure of the atomizer assembly is provided;

[0046] Figure 6 yes Figure 4 A schematic cross-sectional view of a provided atomization assembly;

[0047] Figure 7 yes Figure 4 A schematic structural diagram of a first embodiment of a heating element of a provided atomization assembly;

[0048] Figure 8 yes Figure 4 A schematic structural diagram of a second embodiment of a heating element of a provided atomizing assembly;

[0049] Fig. 9 yes Figure 4 A schematic structural diagram of a third embodiment of a heating element of a provided atomizing assembly;

[0050] Fig.10 yes Figure 4 A schematic structural diagram of a fourth embodiment of a heating element of a provided atomizing assembly;

[0051] Fig.11 is a structural schematic diagram of a first implementation mode of a heating element provided in the second embodiment of the present application;

[0052] Fig.12 is a structural schematic diagram of a second implementation mode of a heating element provided in the second embodiment of the present application;

[0053] Fig.13 is a structural schematic diagram of a third implementation mode of the heating element provided in the second embodiment of the present application;

[0054] Fig.14 It is a structural schematic diagram of a fourth implementation mode of the heating element provided in the second embodiment of the present application. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] The terms "first", "second", "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 indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising 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 units inherent to these processes, methods, products or devices.

[0057] 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 application. The appearance of the phrase in various locations 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.

[0058] See also Figures 1 to 3 , Figure 1 is a schematic diagram of the structure of the electronic atomization device provided in the first embodiment of the present application, Figure 2 yes Figure 1 A schematic diagram of the structure of the atomizer of the electronic atomization device provided, Figure 3 yes Figure 2 A schematic cross-sectional view of the provided atomizer.

[0059] See also Figure 1The present application provides an electronic atomization device 300, which can be used for atomization of an aerosol-generating substrate. The electronic atomization device 300 includes an atomizer 100 and a host 200, and the atomizer 100 and the host 200 are electrically connected.

[0060] The atomizer 100 is used to store and atomize the aerosol-generating matrix to form an aerosol that can be inhaled by the user. The atomizer 100 can be used in different fields, such as medical treatment, beauty, leisure inhalation, etc. In a specific embodiment, the atomizer 100 can be used in an electronic aerosolization device to atomize the aerosol-generating matrix and generate an aerosol for the user to inhale. The following embodiments all take this leisure inhalation as an example.

[0061] The specific structure and function of the atomizer 100 may refer to the specific structure and function of the atomizer 100 involved in the following embodiments, and the same or similar technical effects can be achieved, which will not be repeated here.

[0062] The host 200 includes a power supply (not shown) and a controller (not shown). The power supply is used to provide electrical energy for the operation of the atomizer 100 so that the atomizer 100 can atomize the aerosol-generating matrix to form an aerosol; the controller is used to control the operation of the atomizer 100. The host 200 also includes other components such as a battery holder and an airflow sensor.

[0063] The atomizer 100 and the host 200 can be integrally arranged or detachably connected, and can be designed according to specific needs. The atomizer 100 and the host 200 provided in this embodiment are detachably connected.

[0064] See also Figure 2 and Figure 3 , the atomizer 100 includes a shell 1, an atomizer assembly 2 and a base 3, the base 3 is at least partially arranged in the shell, and cooperates with the shell 1 to form a liquid storage chamber 10, and the liquid storage chamber 10 is used to store the aerosol generating matrix to be atomized. In the present embodiment, the atomizer assembly 2 and the base 3 are both placed inside the shell 1, the shell 1 has an open end, the shell 1 has an air outlet pipe 11 inside, the base 3 is located at the open end of the shell 1, and the atomizer assembly 2 is arranged on one side of the base 3 close to the air outlet pipe. Specifically, the atomizer assembly 2 is arranged on the central axis of the shell 1, and the base 3, the atomizer assembly 2 and the shell 1 cooperate to form a liquid storage chamber 10, and the liquid storage chamber 10 is arranged circumferentially around the atomizer assembly 2. The atomizer assembly 2 is fluidically connected to the liquid storage chamber 10, and is used to heat the atomized aerosol generating matrix after power is turned on to generate an aerosol.

[0065] The base 3 has an air inlet (not shown), which is connected to the atmosphere. The number of air inlet holes can be set to one or more. The interior of the atomizer assembly 2 has an atomizer chamber 20, and the atomization process of the atomizer assembly 2 is carried out in the atomizer chamber 20. The atomizer chamber 20 fluid is connected to the air inlet. The air outlet pipe 11 is located on the side of the atomizer assembly 2 away from the base 3, and is connected to the atomizer chamber 20 fluid of the atomizer assembly 2. The side of the air outlet pipe 11 away from the atomizer assembly 2 is connected to the atmosphere, so that the aerosol generated by atomization in the atomizer chamber 20 flows out through the air outlet pipe 11 and is provided to the user for inhalation.

[0066] Furthermore, in this embodiment, the atomizer 100 also includes a first sealing member 4 , which is sleeved on one end of the base 3 close to the air outlet pipe 11 to seal the liquid storage chamber 10 to prevent leakage of the aerosol-generating matrix in the liquid storage chamber 10 .

[0067] See also Figures 4 to 6 , Figure 4 yes Figure 3 A schematic diagram of the structure of the atomizer assembly of the provided atomizer, Figure 5 yes Figure 4 The schematic diagram of the decomposition structure of the atomizer component provided, Figure 6 yes Figure 4 A schematic cross-sectional view of a provided atomizer assembly.

[0068] See also Figures 3 to 6 , the atomization assembly 2 includes a porous substrate 21 and a heating element 22, and the heating element 22 is arranged on the porous substrate 21. The porous substrate 21 can be a porous structure made of porous materials such as porous metal, porous ceramics, porous glass, etc., or a porous structure formed by punching dense materials such as dense ceramics, or a porous structure such as a cotton core and a fiber layer. In this embodiment, the porous substrate 21 is a tubular structure, and the heating element 22 is also tubular. The heating element 22 can be embedded in the porous substrate 21, or it can be arranged on the inner wall surface of the porous substrate 21, or it can be arranged on the outer wall surface of the porous substrate 21. Figure 6 As shown, the heating element 22 is arranged on the inner wall surface of the porous substrate 21, and the heating element 22 and the porous substrate 21 are arranged coaxially. The atomization chamber 20 is a cavity surrounded by the inside of the tubular porous substrate 21. The heating element 22 and the porous substrate 21 are arranged coaxially, so that the heating element 22 can heat each position of the porous substrate 21 more evenly and the atomization effect is better. The heating element 22 is arranged in a tubular shape, and a continuous support can also be formed in the circumferential direction of the heating element 22, so that the structural strength of the heating element 22 is higher and it is less likely to deform.

[0069] In other embodiments, the porous matrix 21 can also be set to a rectangular shape, and the heating element 22 can also be set to a flat shape, and be set on a surface of the porous matrix 21 to heat and atomize to form an aerosol; or, the porous matrix 21 is still tubular, and the heating element 22 can also be set to an arc shape, embedded in the porous matrix 21, or set on a surface of the porous matrix 21 to heat and atomize to form an aerosol.

[0070] For details, see Figure 4 and Figure 6 In this embodiment, the atomizer assembly 2 further includes a liquid inlet pipe 23, which is sleeved on the outer wall of the porous substrate 21 and communicated with the air outlet pipe 11. The side wall of the liquid inlet pipe 23 is provided with at least one liquid inlet hole 231, and the liquid inlet hole 231 fluidly connects the porous substrate 21 and the liquid storage chamber 10. The porous substrate 21 is arranged inside the liquid inlet pipe 23 and covers the liquid inlet hole 231 on the side wall of the liquid inlet pipe 23. The aerosol generating matrix in the liquid storage chamber 10 can be guided to the porous substrate 21 in the liquid inlet pipe 23 through the liquid inlet hole 231 and absorbed by the porous substrate 21. The heating element 22 heats the aerosol generating matrix in the porous substrate 21 in the energized state to generate an aerosol. The porous substrate 21 has a certain liquid locking function and can also prevent liquid leakage.

[0071] The liquid inlet hole 231 is a through hole provided on the side wall of the liquid inlet tube 23. The liquid inlet hole 231 can be set to any shape such as circular, square, rectangular, elliptical, etc. The number of liquid inlet holes 231 can be set to one or multiple. Multiple liquid inlet holes 231 can also make the porous matrix 21 more efficiently absorb the aerosol generating matrix in the liquid storage cavity 10, which is beneficial to improve the atomization efficiency. Among them, when the liquid inlet hole 231 is set to multiple, the multiple liquid inlet holes 231 can be randomly distributed in the circumference of the liquid inlet tube 23, or can be evenly distributed. The uniform distribution of multiple liquid inlet holes 231 is more conducive to the aerosol generating matrix in the liquid storage cavity 10 to evenly enter the porous matrix 21, ensuring that the liquid inlet speed at various places in the liquid storage cavity 10 is consistent, which is more conducive to atomization uniformity and improves the atomization effect.

[0072] In this embodiment, the shape of the liquid inlet pipe 23 is a circular tube, and the porous substrate 21 and the heating element 22 are both circular tubes. In other embodiments, the shape of the liquid inlet pipe 23 can also be set to other shapes, for example, the liquid inlet pipe 23 can be set to any shape such as a square tube, an elliptical tube, a flat tube, etc. The porous substrate 21 can also be set to other shapes corresponding to the shape of the liquid inlet pipe 23.

[0073] Furthermore, in this embodiment, the atomization assembly 2 further includes a second sealing member 24, which is located between the porous matrix 21 and the liquid inlet pipe 23. The second sealing member 24 is sleeved on the outer wall surface of the porous matrix 21, and can further block the liquid storage cavity 10 to prevent leakage of the aerosol-generating matrix in the liquid storage cavity 10. The side wall of the second sealing member 24 is also provided with a ventilation hole 241, which connects the liquid storage cavity 10 with the atmosphere. The ventilation hole 241 can be used to ventilate the liquid storage cavity 10 to balance the air pressure in the liquid storage cavity 10, thereby ensuring smooth liquid inlet and improving the atomization performance.

[0074] See also Figures 7 to 10 , Figure 7 yes Figure 4 A schematic structural diagram of a first embodiment of a heating element of an atomizing assembly is provided, Figure 8 yes Figure 4 A schematic structural diagram of a second embodiment of the heating element of the atomizing assembly provided, Fig. 9 yes Figure 4 A schematic structural diagram of a third embodiment of the heating element of the atomizing assembly provided, Fig.10 yes Figure 4 A schematic structural diagram of a fourth embodiment of a heating element of a provided atomization assembly.

[0075] See also Figures 7 to 10 In this embodiment, the heating element 22 includes a heating portion 25, which is tubular and includes a first terminal 251 and a second terminal 252, which are spaced apart along the circumference of the heating portion 25. The heating portion 25 also includes a first heating wire 253 and a second heating wire 254, which both extend along the circumference of the heating portion 25, and the first heating wire 253 and the second heating wire 254 are electrically connected to both sides of the first terminal 251 along the circumference of the heating portion 25, respectively, and one end of the first heating wire 253 away from the first terminal 251 is electrically connected to the second terminal 252, and one end of the second heating wire 254 away from the first terminal 251 is electrically connected to the second terminal 252. It can be understood that in the present application, by arranging the first terminal 251 and the second terminal 252 of the heating element 22 at intervals along the circumferential direction of the heating portion 25, the heating portion 25 is arranged to include a first heating wire 253 and a second heating wire 254, and the first heating wire 253 and the second heating wire 254 are electrically connected to the two sides of the first terminal 251, respectively, so that the first heating wire 253 and the second heating wire 254 are arranged in parallel, and the first heating wire 253, the second heating wire 254 and the first terminal 251 and the second terminal 252 form a circumferential continuous supporting structure, which is beneficial to improving the overall structural strength of the heating element 22, and minimizes the non-heating area of ​​the heating element 22, thereby improving the heating efficiency of the heating element 22, and solving the problems of low structural strength and low heating efficiency of the heating element 22 in the prior art.

[0076] In this embodiment, the heating portion 25 is tubular, specifically, the heating portion 25 is in the shape of a circular tube, the first terminal 251 and the second terminal 252 both extend along the axial direction of the heating portion 25, and the first terminal 251 and the second terminal 252 do not intersect each other. Preferably, the first terminal 251 and the second terminal 252 are parallel to each other, and the first terminal 251 and the second terminal 252 are symmetrically arranged about the central axis of the heating portion 25, that is, the first terminal 251 and the second terminal 252 are located at both ends of the same diameter of the heating portion 25, which can be more conducive to ensuring the stability of electrical connection and uniformity of heating. In other embodiments, the first terminal 251 and the second terminal 252 can also extend in other directions, and the first terminal 251 and the second terminal 252 can also be asymmetrically arranged, as long as it is ensured that the first heating wire 253 and the second heating wire 254 can respectively achieve stable electrical connection with the first terminal 251 and the second terminal 252.

[0077] The heating element 22 includes a first lead 255 and a second lead 256, wherein the first lead 255 is electrically connected to the first terminal 251, and the second lead 256 is electrically connected to the second terminal 252. The first lead 255 and the second lead 256 may extend to the same side of the heating element 25 along the axial direction of the heating element 25, or may extend to opposite sides of the heating element 25 along the axial direction of the heating element 25. It can be understood that when the first lead 255 and the second lead 256 extend to the same side of the heating part 25 along the axial direction of the heating part 25, it can be more convenient to be applied to the electronic atomization device 300 with the same terminal electrical structure, avoiding the need to fold down one of the first lead 255 and the second lead 256 when the heating element 22 structure with leads on both sides is applied to the electronic atomization device 300 with the same terminal electrical structure, resulting in the lead contacting the surface of the heating element 22 and short-circuiting, and the leakage of the aerosol generating matrix along the lead, thereby ensuring the working stability of the heating element 22, improving the performance of the electronic atomization device 300, and also improving the application range of the heating element 22.

[0078] In this embodiment, the first terminal 251 and the second terminal 252 are parallel to each other and both extend along the axial direction of the heating portion 25, the first lead 255 and the second lead 256 are electrically connected to the first terminal 251 and the second terminal 252, respectively, and the first lead 255 and the second lead 256 both extend along the axial direction of the heating portion 25 to the same side of the heating portion 25, specifically, the first lead 255 and the second lead 256 both extend along the axial direction of the heating element 22 to the side of the heating element 22 close to the air inlet, that is, the side close to the base 3. The first lead 255 and the second lead 256 extend to pass through the base 3 and are electrically connected to the positive and negative electrodes of the power supply, respectively, to avoid the risk of short circuit and leakage of the aerosol generating matrix.

[0079] See also Figure 7 and Figure 8 The first heating wire 253 and the second heating wire 254 are bent and extended multiple times along the circumference of the heating portion 25, which is beneficial to increase the length of the heating wire, thereby improving the heating efficiency of the heating wire. At the same time, it also increases the contact area between the heating wire and the porous matrix 21, so that each position of the porous matrix 21 can achieve better contact with the heating wire, so that the heating wire can more evenly atomize the aerosol generating matrix at different positions in the porous matrix 21, thereby improving the uniformity of atomization, and thus helping to improve the atomization taste.

[0080] For details, see Figure 7 In one embodiment, the first heating wire 253 and the second heating wire 254 are both bent and extended along the circumference of the heating portion 25 for multiple times. Specifically, the first heating wire 253 and the second heating wire 254 have the same shape and are both extended in a wave shape along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 have multiple peaks and troughs, and a V shape is formed between two adjacent peaks. The first heating wire 253 and the second heating wire 254 are symmetrically arranged about the central axis of the heating portion 25.

[0081] See also Figure 8 In another embodiment, the first heating wire 253 and the second heating wire 254 both extend in multiple bends along the circumference of the heating portion 25. Specifically, the first heating wire 253 and the second heating wire 254 have the same shape and both extend in a wave shape along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 both have multiple crests and troughs, and a U-shape is formed between two adjacent crests. The first heating wire 253 and the second heating wire 254 are symmetrically arranged about the central axis of the heating portion 25.

[0082] It can be understood that the symmetrical arrangement of the first heating wire 253 and the second heating wire 254 can ensure that the lengths of the first heating wire 253 and the second heating wire 254 connected on both sides of the first terminal 251 are consistent, thereby ensuring that the parallel resistance on both sides of the first terminal 251, that is, the heating capacity of the first heating wire 253 and the second heating wire 254 is consistent, ensuring that the atomization ability of the aerosol generating matrix at the symmetrical position of the porous matrix 21 is relatively consistent, which is more conducive to ensuring the uniformity of atomization and improving the atomization taste.

[0083] In other embodiments, the shapes of the first heating wire 253 and the second heating wire 254 may also be different, and the first heating wire 253 and the second heating wire 254 may also be set to other shapes, for example, the first heating wire 253 and the second heating wire 254 may extend in any shape such as Z-shape, arc shape, S-shape, etc. along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 may be set asymmetrically, for example, the first terminal 251 and the second terminal 252 are not located on the same diameter of the heating portion 25, and the lengths of the first heating wire 253 and the second heating wire 254 are inconsistent, as long as the first heating wire 253 and the second heating wire 254 can both achieve stable electrical connection with the first terminal 251 and the second terminal 252.

[0084] Further, the first heating wire 253 may include a plurality of first sub-heating wires 2531, which are spaced apart along the axial direction of the heating portion 25, and one end of each of the plurality of first sub-heating wires 2531 is connected to the first terminal 251, and the other end is connected to the second terminal 252. And / or, the second heating wire 254 may also include a plurality of second sub-heating wires 2541, which are spaced apart along the axial direction of the heating portion 25, and one end of each of the plurality of second sub-heating wires 2541 is connected to the second terminal 252, and the other end is connected to the first terminal 251. By configuring the first heating wire 253 to include a plurality of first sub-heating wires 2531 spaced apart from each other in the axial direction, and / or configuring the second heating wire 254 to include a plurality of second sub-heating wires 2541 spaced apart from each other in the axial direction, the number of the first heating wires 253 and / or the second heating wires 254 is further increased, and a plurality of parallel resistors are formed, which can improve the structural strength of the heating portion 25 of the heating element 22, make the heating element 22 less likely to deform, improve the assembly consistency of the heating element 22, and further improve the service life.

[0085] In this embodiment, the first heating wire 253 includes a plurality of first sub-heating wires 2531, and the second heating wire 254 includes a plurality of second sub-heating wires 2541. The plurality of first sub-heating wires 2531 are bent and extended multiple times along the circumference of the heating portion 25, and the plurality of second sub-heating wires 2541 are bent and extended multiple times along the circumference of the heating portion 25. Preferably, the plurality of first sub-heating wires 2531 are symmetrically arranged, and the plurality of second sub-heating wires 2541 are symmetrically arranged, so that the heating is more uniform and the structure is more stable. Among them, the first sub-heating wire 2531 and the second sub-heating wire 2541 can be set to any number such as two, three, or four. The more the number of the first sub-heating wires 2531 and the second sub-heating wires 2541, the more the number of parallel circuits formed, so that the structural strength of the heating part of the heating element 22 is higher, which is more conducive to solving the problem of low structural strength and easy deformation of the heating element 22 in the prior art, and minimizes the non-heating area of ​​the heating element 22, thereby improving the heating efficiency.

[0086] See also Fig. 9 In one embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and the two first sub-heating wires 2531 are arranged at intervals in the axial direction of the heating portion 25, and the two first sub-heating wires 2531 are bent and extended multiple times along the circumference of the heating portion 25. Specifically, the two first sub-heating wires 2531 have the same shape and extend in a wave shape along the circumference of the heating portion 25. The two first sub-heating wires 2531 have multiple peaks and troughs. Two adjacent peaks of the same first sub-heating wire 2531 form a V shape, and the two first sub-heating wires 2531 are axially symmetrically arranged. The second heating wire 254 includes two second sub-heating wires 2541, which are arranged at intervals in the axial direction of the heating portion 25, and the two second sub-heating wires 2541 are bent and extended along the circumference of the heating portion 25 in multiple bends. Specifically, the two second sub-heating wires 2541 have the same shape, and both extend in a wave shape along the circumference of the heating portion 25. The two second sub-heating wires 2541 have multiple peaks and troughs, and the adjacent two peaks of the same second sub-heating wire 2541 form a V shape, and the two second sub-heating wires 2541 are arranged axially symmetrically. Further, the first sub-heating wire 2531 and the second sub-heating wire 2541 have the same shape, and the first heating wire 253, i.e., the two first sub-heating wires 2531, and the second heating wire 254, i.e., the two second sub-heating wires 2541, are symmetrically arranged about the central axis of the heating portion 25, so that the heating and atomization are more uniform.

[0087] See also Fig.10In another embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and the two first sub-heating wires 2531 are arranged at intervals in the axial direction of the heating portion 25. The second heating wire 254 includes two second sub-heating wires 2541, and the two second sub-heating wires 2541 are arranged at intervals in the axial direction of the heating portion 25. The two first sub-heating wires 2531 and the two second sub-heating wires 2541 are both bent and extended in multiple directions along the circumference of the heating portion 25. Specifically, the two first sub-heating wires 2531 have the same shape, and the two second sub-heating wires 2541 have the same shape. The two first sub-heating wires 2531 and the two second sub-heating wires 2541 are both extended in a wave shape along the circumference of the heating portion 25. The two first sub-heating wires 2531 and the two second sub-heating wires 2541 have multiple crests and troughs. Two adjacent crests of the same first sub-heating wire 2531 form a U shape, and the two first sub-heating wires 2531 are axially symmetrically arranged. The two adjacent wave crests of the same second sub-heating wire 2541 also form a U shape, and the two second sub-heating wires 2541 are axially symmetrically arranged. Further, the first sub-heating wire 2531 and the second sub-heating wire 2541 have the same shape, and the first heating wire 253, i.e., the two first sub-heating wires 2531 and the second heating wire 254, i.e., the two second sub-heating wires 2541 are symmetrically arranged about the central axis of the heating portion 25, so that the heating and atomization are more uniform.

[0088] It can be understood that in the present embodiment, the number of the first sub-heating wires 2531 and the second sub-heating wires 2541 are both set to two, so that when the current flows from the first terminal 251 to the second terminal 252, it can pass through the two first sub-heating wires 2531 or the two second sub-heating wires 2541, and four current flow paths are formed between the first terminal 251 and the second terminal 252. The first sub-heating wire 2531, the second sub-heating wire 2541 and the first terminal 251 and the second terminal 252 form a circumferential continuous supporting structure, which is more conducive to improving the overall structural strength of the heating element 22, and minimizes the non-heating area of ​​the heating element 22, thereby improving the heating efficiency of the heating element 22, and solving the problems of low structural strength and low heating efficiency of the heating element 22 in the prior art.

[0089] In other embodiments, the first sub-heating wire 2531 and the second sub-heating wire 2541 may also be set to other numbers, the first sub-heating wire 2531 and the second sub-heating wire 2541 may also be set to other shapes, and the first sub-heating wire 2531 and the second sub-heating wire 2541 may extend in any shape such as Z-shape, arc shape, S-shape, etc. along the circumference of the heating portion 25. The plurality of first sub-heating wires 2531 may also be arranged asymmetrically, or the shapes of the plurality of first sub-heating wires 2531 may be different, the plurality of second sub-heating wires 2541 may also be arranged asymmetrically, or the shapes of the plurality of second sub-heating wires 2541 may be different. The first heating wire 253 and the second heating wire 254 may also be arranged asymmetrically, the number or shape of the first sub-heating wire 2531 and the second sub-heating wire 2541 may also be different, only a plurality of first sub-heating wires 2531 may be arranged without a plurality of second sub-heating wires 2541, or only a plurality of second sub-heating wires 2541 may be arranged without a plurality of first sub-heating wires 2531. As long as the first heating wire 253 and the second heating wire 254 can achieve stable electrical connection with the first terminal 251 and the second terminal 252 respectively, the first sub-heating wire 2531 and / or the second sub-heating wire 2541 can be adjusted in terms of thickness, width, length, height, spacing and other structural parameters to achieve the design of any resistance value, heat flow and temperature gradient to meet different requirements for puffing taste.

[0090] For further information, see Fig. 9 and Fig.10 , at least one reinforcing rib 257 is provided between two adjacent first sub-heating wires 2531, the reinforcing rib 257 is parallel to the axial direction of the heating part 25, and the two ends of the reinforcing rib 257 are respectively connected to the two adjacent first sub-heating wires 2531. And / or, at least one reinforcing rib 257 is provided between two adjacent second sub-heating wires 2541, the reinforcing rib 257 is parallel to the axial direction of the heating part 25, and the two ends of the reinforcing rib 257 are respectively connected to the two adjacent second sub-heating wires 2541. The reinforcing rib 257 can be integrally formed with the heating part 25, or can be fixedly connected to the heating part 25 by welding or the like. It can be understood that by providing the reinforcing rib 257 between the two adjacent first sub-heating wires 2531 and / or the two adjacent second sub-heating wires 2541, the structural strength of the heating part 25 can be further enhanced, the risk of deformation of the heating element 22 can be reduced, the stability of the heating element 22 can be improved, and then it is conducive to improving the assembly consistency.

[0091] For details, see Fig. 9In one embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and the adjacent two crests of the same first sub-heating wire 2531 form a V shape. Three reinforcing ribs 257 are arranged between the two first sub-heating wires 2531. The three reinforcing ribs 257 are parallel to the axial direction of the heating part 25 and are arranged at intervals. One end of each reinforcing rib 257 is connected to the crest of one of the first sub-heating wires 2531, and the other end is connected to the corresponding trough position of another first sub-heating wire 2531, which is more conducive to improving the structural strength and stability of the heating part 25. The arrangement of the reinforcing rib 257 connected to the second sub-heating wire 2541 is the same as the arrangement of the reinforcing rib 257 connected to the first sub-heating wire 2531. Specifically, the reinforcing rib 257 connected to the first sub-heating wire 2531 and the reinforcing rib 257 connected to the second sub-heating wire 2541 are arranged symmetrically. This makes the overall stability of the heating element 22 stronger and the structural strength higher.

[0092] See also Fig.10 In another embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and a U-shape is formed between two adjacent crests of the same first sub-heating wire 2531. Two reinforcing ribs 257 are arranged between the two first sub-heating wires 2531. The two reinforcing ribs 257 are parallel to the axial direction of the heating portion 25 and are arranged at intervals from each other. One end of each reinforcing rib 257 is connected to the crest of one of the first sub-heating wires 2531, and the other end is connected to the trough position of the other first sub-heating wire 2531. Specifically, one end of the reinforcing rib 257 is connected to the midpoint of the crest of one of the first sub-heating wires 2531, and the other end is connected to the midpoint of the corresponding trough of the other first sub-heating wire 2531, which is more conducive to improving the structural strength and stability of the heating portion 25. The reinforcing rib 257 connected to the second sub-heating wire 2541 is arranged in the same manner as the reinforcing rib 257 connected to the first sub-heating wire 2531. Specifically, the reinforcing rib 257 connected to the first sub-heating wire 2531 and the reinforcing rib 257 connected to the second sub-heating wire 2541 are arranged symmetrically, so that the overall stability of the heating element 22 is stronger and the structural strength is higher.

[0093] In other embodiments, the reinforcing rib 257 may be set to one, four, five, six or any other number, and the reinforcing rib 257 may not extend along the axial direction of the heating portion 25, but may extend along any other direction, as long as the two ends of the reinforcing rib 257 are respectively connected to the two adjacent first sub-heating wires 2531, or the two ends of the reinforcing rib 257 are respectively connected to the two adjacent second sub-heating wires 2541, so as to improve the structural strength of the heating portion 25 and ensure the structural stability. The reinforcing rib 257 connected to the first sub-heating wire 2531 and the reinforcing rib 257 connected to the second sub-heating wire 2541 may also be set asymmetrically; or, the reinforcing rib 257 may be set only between the two adjacent first sub-heating wires 2531, and no reinforcing rib 257 may be set between the two adjacent second sub-heating wires 2541, or, the reinforcing rib 257 may be set only between the two adjacent second sub-heating wires 2541, and no reinforcing rib 257 may be set between the two adjacent first sub-heating wires 2531.

[0094] In this embodiment, see Figures 7 to 10 , the heating element 22 further includes at least one first support ring 26, which is a circular ring. Along the axial direction of the heating portion 25, the first support ring 26 is arranged on the first side of the heating portion 25 and is coaxially arranged with the heating portion 25. Specifically, the first support ring 26 is connected to one end of the second terminal 252, and is spaced apart from the first heating wire 253, the second heating wire 254 and the first terminal 251. It can be understood that in this embodiment, the first support ring 26 is connected to one end of the second terminal 252, and the first support ring 26 is spaced apart from the first heating wire 253, the second heating wire 254 and the first terminal 251, so that the first support ring 26 can better support the heating element 22. The first support ring 26 is a continuous support structure in the circumferential direction of the heating element 22, which greatly improves the overall structural strength of the heating element 22, improves the structural stability of the heating element 22, and is more suitable for the cylindrical porous matrix 21, which can improve the assembly consistency and suction taste stability of the heating element 22 and extend the service life. Moreover, the first support ring 26 is spaced apart from the first heating wire 253, the second heating wire 254 and the first terminal 251 to avoid short circuit. No current passes through the first support ring 26, which greatly improves the structural strength of the core heating part 25 without causing additional power loss, thereby ensuring the effective power supply of the core heating part 25 and improving the atomization efficiency and aerosol volume.

[0095] Further, the heating element 22 may also include a second support ring (not shown), which may be a circular ring. Along the axial direction of the heating portion 25, the second support ring may be arranged on the second side of the heating portion 25, and coaxially arranged with the heating portion 25. Specifically, the second support ring is connected to one end of the first terminal 251, and is spaced apart from the first heating wire 253, the second heating wire 254, and the second terminal 252. The structure and performance of the second support ring may be the same as those of the first support ring 26. It can be understood that by further arranging the second support ring on the second side of the heating portion 25, the overall structural strength of the heating element 22 may be further improved, the structural stability of the heating element 22 may be improved, and the consistency of the assembly of the heating element 22 and the stability of the suction taste may be improved, thereby extending the service life. The first support ring 26 and / or the second support ring may be integrally formed with the heating portion 25, or may be fixedly connected to the heating portion 25 by welding or the like.

[0096] In other embodiments, the first support ring 26 and the second support ring may not be provided, or only one of the first support ring 26 and the second support ring may be provided. The shapes of the first support ring 26 and the second support ring may also be set to other shapes, as long as the overall strength of the heating element 22 can be enhanced, and the stability and assembly consistency of the heating element 22 can be improved.

[0097] In this embodiment, the heating element 22 may be an integrally formed metal mesh, for example, an integral structure directly formed by chemically etching a metal round tube, laser / mechanical engraving, or the like; or, the heating element 22 may be formed by curling a flat metal mesh and fixing the two ends together, for example, a metal plate may be chemically etched, laser engraved, or mechanically engraved, and then rolled and welded to form a tubular heating element 22. The heating element 22 may be made of a high-strength metal heating material such as an iron-chromium-aluminum alloy, stainless steel, or a nickel-chromium alloy to ensure the heating performance and structural strength of the heating element 22.

[0098] See also Figures 11 to 14 , Fig.11 is a structural schematic diagram of a first implementation mode of a heating element provided in the second embodiment of the present application, Fig.12 is a structural schematic diagram of a second implementation of a heating element provided in the second embodiment of the present application, Fig.13 is a schematic structural diagram of a third implementation mode of the heating element provided in the second embodiment of the present application, Fig.14 It is a structural schematic diagram of a fourth implementation mode of the heating element provided in the second embodiment of the present application.

[0099] See also Figures 11 to 14The present application also provides a heating element 22, the heating element 22 includes a heating portion 25, the heating portion 25 is in a plane shape or an arc shape, the heating portion 25 includes a first terminal 251 and two second terminals 252 arranged at intervals along a first direction, the first terminal 251 is located between the two second terminals 252, and is arranged in parallel with the second terminal 252, and the first terminal 251 and the two second terminals 252 both extend along a second direction. Preferably, when the heating portion 25 is in a plane shape, the first direction is perpendicular to the second direction; when the heating portion 25 is in an arc shape, the first direction is the arc extension direction of the arc, and the second direction is the straight line extension direction of the arc. In this embodiment, the heating element 22 is an integrally formed metal mesh, and the material of the heating element 22 can be a high-strength metal heating material such as iron-chromium-aluminum alloy, stainless steel, nickel-chromium alloy, etc., to ensure the heating performance and structural strength of the heating element 22.

[0100] The heating part 25 also includes a first heating wire 253 and a second heating wire 254. The first heating wire 253 and the second heating wire 254 both extend along the first direction and are respectively located on both sides of the first terminal 251. One end of the first heating wire 253 is electrically connected to the first terminal 251, and the other end is electrically connected to one of the second terminals 252. One end of the second heating wire 254 is electrically connected to the first terminal 251, and the other end is electrically connected to the other second terminal 252. It can be understood that in the present embodiment, a first terminal 251 and two second terminals 252 are provided on the heating portion 25 of the heating element 22, and a first heating wire 253 and a second heating wire 254 are provided between the two second terminals 252 and the first terminal 251 respectively. The first heating wire 253, the second heating wire 254 and the first terminal 251 and the second terminal 252 form a circumferential continuous supporting structure, which is beneficial to improving the overall structural strength of the heating element 22, and minimizing the non-heating area of ​​the heating element 22, thereby improving the heating efficiency of the heating element 22, and solving the problems of low structural strength and low heating efficiency of the heating element 22 in the prior art.

[0101] See also Fig.11 and Fig.12 The heating portion 25 is planar, and the first heating wire 253 and the second heating wire 254 are bent and extended multiple times along the circumference of the heating portion 25. Specifically, Fig.11 As shown, in one embodiment, the first heating wire 253 and the second heating wire 254 have the same shape, and both extend in a wave shape along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 both have a plurality of crests and troughs, and a V shape is formed between two adjacent crests. The first heating wire 253 and the second heating wire 254 are symmetrically arranged about the first terminal 251. Fig.12As shown, in another embodiment, the first heating wire 253 and the second heating wire 254 have the same shape, and both extend in a wave shape along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 both have multiple peaks and troughs, and a U-shape is formed between two adjacent peaks, and the first heating wire 253 and the second heating wire 254 are symmetrically arranged about the first terminal 251.

[0102] It can be understood that the first heating wire 253 and the second heating wire 254 are symmetrically arranged, which can ensure that the lengths of the first heating wire 253 and the second heating wire 254 connected on both sides of the first terminal 251 are consistent, thereby ensuring that the parallel resistance on both sides of the first terminal 251, that is, the heating capacity of the first heating wire 253 and the second heating wire 254 is consistent, and ensuring that when the heating element 22 is applied to the atomization component 2, the atomization capacity of the aerosol generating matrix at each position of the porous matrix 21 of the atomization component 2 is relatively consistent, which is more conducive to ensuring the uniformity of atomization and improving the atomization taste.

[0103] In other embodiments, the shapes of the first heating wire 253 and the second heating wire 254 may also be different, and the first heating wire 253 and the second heating wire 254 may also be set to other shapes. For example, the first heating wire 253 and the second heating wire 254 may extend in any shape such as a Z shape, an arc shape, an S shape, etc. along the circumference of the heating portion 25. The first heating wire 253 and the second heating wire 254 may be set asymmetrically, and the lengths of the first heating wire 253 and the second heating wire 254 may be inconsistent, as long as the first heating wire 253 and the second heating wire 254 can both achieve stable electrical connection with the first terminal 251 and the second terminal 252.

[0104] See also Fig.13 and Fig.14 The first heating wire 253 may include a plurality of first sub-heating wires 2531, which are arranged at intervals along the second direction, and one end of each of the plurality of first sub-heating wires 2531 is connected to the first terminal 251, and the other end is connected to one of the second terminals 252. And / or, the second heating wire 254 may also include a plurality of second sub-heating wires 2541, which are arranged at intervals along the second direction, and one end of each of the plurality of second sub-heating wires 2541 is connected to the first terminal 251, and the other end is connected to another of the second terminals 252. By providing a plurality of first sub-heating wires 2531 and / or a plurality of second sub-heating wires 2541, the number of the first heating wires 253 and / or the second heating wires 254 is further increased, and the structural strength of the heating portion 25 of the heating element 22 can be further improved, so that the heating element 22 is not easily deformed, which is conducive to improving the assembly consistency of the heating element and extending the service life.

[0105] See also Fig.13 and Fig.14In this embodiment, the heating portion 25 is planar, the first heating wire 253 includes a plurality of first sub-heating wires 2531, and the second heating wire 254 includes a plurality of second sub-heating wires 2541. Fig.13 As shown, in one embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and the two first sub-heating wires 2531 are arranged at intervals from each other in the first direction of the heating portion 25. Specifically, the two first sub-heating wires 2531 have the same shape and extend in a wave shape along the first direction of the heating portion 25. The two first sub-heating wires 2531 have multiple peaks and troughs. The adjacent two peaks of the same first sub-heating wire 2531 form a V shape, and the two first sub-heating wires 2531 are arranged axially symmetrically. The arrangement of the second sub-heating wire 2541 is the same as that of the first sub-heating wire 2531, and will not be repeated. Specifically, the first heating wire 253, i.e., the two first sub-heating wires 2531, and the second heating wire 254, i.e., the two second sub-heating wires 2541, are symmetrically arranged about the first terminal 251, so that the heating is more uniform.

[0106] like Fig.14 As shown, in another embodiment, the first heating wire 253 includes two first sub-heating wires 2531, and the second heating wire 254 includes two second sub-heating wires 2541. The two first sub-heating wires 2531 are arranged at intervals from each other in the first direction of the heating portion 25, and the two second sub-heating wires 2541 are arranged at intervals from each other in the first direction of the heating portion 25. Specifically, the two first sub-heating wires 2531 have the same shape, and the two first sub-heating wires 2531 extend in a wave shape along the circumference of the heating portion 25. The two first sub-heating wires 2531 each have a plurality of crests and troughs, and a U-shape is formed between two adjacent crests of the same first sub-heating wire 2531, and the two first sub-heating wires 2531 are arranged axially symmetrically. The arrangement of the second sub-heating wire 2541 is the same as that of the first sub-heating wire 2531, and will not be repeated. Specifically, the first heating wire 253 , namely the two first sub-heating wires 2531 , and the second heating wire 254 , namely the two second sub-heating wires 2541 , are symmetrically arranged with respect to the first terminal 251 , so that the heating is more uniform.

[0107] It can be understood that the number of the first sub-heating wire 2531 and the second sub-heating wire 2541 is set to two, so that when the current flows from the first terminal 251 to the two second terminals 252, it can pass through the two first sub-heating wires 2531 or the two second sub-heating wires 2541, and four current flow paths are formed between the first terminal 251 and the second terminal 252, which is more conducive to solving the problem of low structural strength of the heating element 22 in the prior art. The two first sub-heating wires 2531 and the two second sub-heating wires 2541 are symmetrically arranged, so that the current flowing through the two sides of the first terminal 251 is consistent, and the heating element 22 generates heat more evenly at various positions, which is conducive to improving the uniformity of atomization and improving the taste of atomization. In other embodiments, the first sub-heating wire 2531 and the second sub-heating wire 2541 can also be set to other numbers or shapes.

[0108] For further information, see Fig.13 and Fig.14 , at least one reinforcing rib 257 is provided between two adjacent first sub-heating wires 2531, the reinforcing rib 257 is parallel to the second direction, and the two ends of the reinforcing rib 257 are respectively connected to the two adjacent second sub-heating wires 2541. And / or, at least one reinforcing rib 257 is provided between two adjacent second sub-heating wires 2541, the reinforcing rib 257 is parallel to the second direction, and the two ends of the reinforcing rib 257 are respectively connected to the two adjacent second sub-heating wires 2541. The reinforcing rib 257 can be integrally formed with the heating portion 25, or can be fixedly connected to the heating portion 25 by welding or the like. It can be understood that by providing the reinforcing rib 257 between the two adjacent first sub-heating wires 2531 and / or the two adjacent second sub-heating wires 2541, the structural strength of the heating element 22 can be further enhanced, the risk of deformation of the heating element 22 can be reduced, and the stability of the heating element 22 can be improved. The reinforcing rib 257 can be set to one, two, four, five, or any other number, and can extend along any other direction.

[0109] See also Figures 11 to 14In this embodiment, the heating element 22 further includes a first support bar 27, which is in the shape of a long strip and extends along the first direction. The two ends of the first support bar 27 are respectively connected to the two second terminals 252. Along the second direction, the first support bar 27 is located on the first side of the heating portion 25 and is spaced apart from the first heating wire 253, the second heating wire 254 and the first terminal 251. It can be understood that in this embodiment, by setting the first support bar 27, the first support bar 27 can better support the heating element 22. The first support bar 27 forms a continuous support in the first direction, which greatly improves the overall structural strength of the heating element 22, improves the structural stability of the heating element 22, and reduces the risk of deformation. And the first support bar 27 connects the two second terminals 252, so that when the heating element 22 is applied to the electronic atomization device 300, only two leads need to be connected, and the two leads can be connected to the first terminal 251 and any one of the second terminals 252 to achieve electrical connection with the power supply component.

[0110] Furthermore, the heating element 22 may also include a second support bar 28, which is in the shape of an elongated strip and extends along the first direction, wherein the middle portion of the second support bar 28 is connected to the first terminal 251 and both ends of the second support bar 28 are free ends. Along the second direction, the second support bar 28 is located on the second side of the heating portion 25 and is spaced apart from the first heating wire 253, the second heating wire 254 and the first terminal 251. By providing the second support bar 28, the structural strength of the heating element 22 can be further improved, and the stability of the heating element 22 can be improved. The first support bar 27 and / or the second support bar 28 can be formed integrally with the heating portion 25, or can be fixedly connected to the heating portion 25 by welding or the like.

[0111] In other embodiments, the first support bar 27 and the second support bar 28 may not be provided, or only one of the first support bar 27 and the second support bar 28 may be provided. The first support bar 27 and the second support bar 28 may also be provided in other shapes, or may extend in other directions, as long as the structural strength of the heating element 22 can be enhanced.

[0112] In this embodiment, the heating element 22 can be directly applied to the atomization assembly 2 of the electronic atomization device 300, and the heating element 22 is arranged on a surface of the porous substrate 21 of the atomization assembly 2 to heat the atomized aerosol to generate the matrix. In other embodiments, the heating element 22 provided in this embodiment can also be curled, and the two second terminals 252 can be abutted or overlapped, and the two second terminals 252 can be fixedly connected by welding to form a cylindrical heating element 22, that is, to form a heating element 22 as shown in FIG. Figures 7 to 10 The structure of the heating element 22 shown in the figure is used for Figure 3 In the atomization assembly 2 shown.

[0113] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating element, characterized in that: The heating body includes a heating part, which is tubular; the heating part includes a first terminal and a second terminal, and the first terminal and the second terminal are arranged at intervals along the circumference of the heating part; the heating part also includes a first heating wire and a second heating wire, the first heating wire and the second heating wire both extend along the circumference of the heating part and are electrically connected to both sides of the first terminal respectively, one end of the first heating wire away from the first terminal is electrically connected to the second terminal, and one end of the second heating wire away from the first terminal is electrically connected to the second terminal.

2. The heating element according to claim 1, characterized in that: The heating portion is in a circular tube shape, and the first terminal and the second terminal both extend along the axial direction of the heating portion.

3. The heating element according to claim 1, characterized in that: The heating element further includes a first lead and a second lead, the first lead is electrically connected to the first terminal, and the second lead is electrically connected to the second terminal; wherein, The first lead and the second lead extend along the axial direction of the heat generating portion toward the same side of the heat generating portion; or, The first lead and the second lead extend toward opposite sides of the heat generating portion along an axial direction of the heat generating portion.

4. The heating element according to claim 1, characterized in that The heating element further comprises a first support ring; along the axial direction of the heating portion, the first support ring is coaxially arranged on a first side of the heating portion; the first support ring is connected to one end of the second terminal, and is spaced apart from the first heating wire, the second heating wire and the first terminal; and / or, The heating element also includes a second support ring; along the axial direction of the heating part, the second support ring is coaxially arranged on the second side of the heating part; the second support ring is connected to one end of the first terminal, and is spaced apart from the first heating wire, the second heating wire and the second terminal.

5. The heating element according to claim 1, characterized in that: The first heating wire is bent multiple times and extends along the circumference of the heating portion, and the second heating wire is bent multiple times and extends along the circumference of the heating portion.

6. The heating element according to claim 1, characterized in that: The first heating wire comprises a plurality of first sub-heating wires, and the plurality of first sub-heating wires are arranged at intervals along the axial direction of the heating portion; one end of the plurality of first sub-heating wires is connected to the first terminal, and the other end is connected to the second terminal; and / or, The second heating wire includes a plurality of second sub-heating wires, which are spaced apart along the axial direction of the heating portion; one end of each of the second sub-heating wires is connected to the second terminal, and the other end of each of the second sub-heating wires is connected to the first terminal.

7. The heating element according to claim 6, characterized in that The first heating wire comprises a plurality of first sub-heating wires, and at least one reinforcing rib is disposed between two adjacent first sub-heating wires; the first sub-heating wire is bent and extended multiple times along the circumference of the heating portion, the reinforcing rib is parallel to the axial direction of the heating portion, and both ends of the reinforcing rib are respectively connected to two adjacent first sub-heating wires; and / or, The second heating wire includes a plurality of second sub-heating wires, and at least one reinforcing rib is arranged between two adjacent second sub-heating wires; the second sub-heating wire extends in multiple bends along the circumference of the heating portion, the reinforcing rib is parallel to the axial direction of the heating portion, and both ends of the reinforcing rib are respectively connected to two adjacent second sub-heating wires.

8. The heating element according to claim 6, characterized in that: The first heating wire includes a plurality of first sub-heating wires, and the plurality of first sub-heating wires are symmetrically arranged; and / or, The second heating wire includes a plurality of second sub-heating wires, and the plurality of second sub-heating wires are symmetrically arranged.

9. The heating element according to claim 1, characterized in that: The first heating wire and the second heating wire are symmetrically arranged.

10. The heating element according to any one of claims 1 to 9, characterized in that: The heating element is an integrally formed metal mesh; or The heating element is formed by curling a flat metal mesh and fixing both ends thereof together.

11. A heating element, characterized in that: The heating element comprises a heating portion, which is in a plane or arc shape; the heating portion comprises a first terminal and two second terminals arranged at intervals along the first direction, the first terminal is located between the two second terminals and arranged parallel to the second terminals; the first terminal and the two second terminals both extend along the second direction; The heating part also includes a first heating wire and a second heating wire, the first heating wire and the second heating wire both extend along the first direction and are respectively located on both sides of the first terminal; one end of the first heating wire is electrically connected to the first terminal, and the other end is electrically connected to one of the second terminals; one end of the second heating wire is electrically connected to the first terminal, and the other end is electrically connected to another of the second terminals.

12. The heating element according to claim 11, characterized in that: The heating element further comprises a first support bar, the first support bar extends along the first direction, and two ends of the first support bar are respectively connected to two second terminals; along the second direction, the first support bar is located on the first side of the heating portion and is spaced apart from the first heating wire, the second heating wire and the first terminal; and / or, The heating element also includes a second support bar, which extends along the first direction, the middle part of the second support bar is connected to the first terminal and the two ends of the second support bar are free ends; along the second direction, the second support bar is located on the second side of the heating part and is spaced apart from the first heating wire, the second heating wire and the first terminal.

13. The heating element according to claim 11 or 12, characterized in that: The heating element is an integrally formed metal mesh.

14. An atomizing assembly, characterized in that: include: Porous matrix; A heating element is arranged on the porous substrate, and the heating element is the heating element as described in any one of claims 1 to 13.

15. The atomizer assembly according to claim 14, characterized in that: The porous matrix is ​​in a tubular shape, the heating element is the heating element as described in any one of claims 1 to 10, and the heating element is coaxially arranged with the porous matrix.

16. An atomizer, characterized in that: include: A shell body having an air outlet pipe therein; A base, at least partially disposed in the shell, cooperates with the shell to form a liquid storage cavity, wherein the liquid storage cavity is used to store the aerosol generating matrix; the base is provided with an air inlet hole; An atomizer assembly, comprising the atomizer assembly according to claim 14 or 15; the atomizer assembly is arranged in the shell and is located on a side of the base close to the air outlet pipe; the atomizer assembly also includes a liquid inlet pipe, the liquid inlet pipe is sleeved on the outer wall surface of the porous matrix and is connected to the air outlet pipe; the side wall of the liquid inlet pipe is provided with at least one liquid inlet hole, and the liquid inlet hole fluid connects the porous matrix and the liquid storage chamber; Wherein, the first lead and the second lead both extend along the axial direction of the heating element and toward a side of the heating element close to the air inlet.

17. An electronic atomization device, characterized in that: include: An atomizer, comprising the atomizer according to claim 16; The host comprises a power supply, and the first lead and the second lead of the atomizing assembly are electrically connected to the positive electrode and the negative electrode of the power supply respectively.

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