Heating structure and atomizing core

Abstract

The utility model provides a heating structure which comprises a first electrode part and a second electrode part which are oppositely arranged at an interval and a net-shaped heating part connected between the first electrode part and the second electrode part, the net-shaped heating part comprises a plurality of heating wires which are arranged at intervals, each heating wire is bent and extends in a wave shape, and the first electrode part and the second electrode part are arranged at intervals. Two ends of each heating wire are respectively connected with the first electrode part and the second electrode part; and in every two adjacent heating wires, the partial bending position of one heating wire is connected with the partial bending position of the other heating wire through an extension part. The utility model further provides an atomizing core.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic atomizers, in particular to a heating structure and an atomizing core. Background Art

[0002] The atomizer core is one of the important components of the electronic atomizer, which is used to heat the atomized e-liquid to generate smoke for the user to inhale.

[0003] The atomizer core generally includes a porous ceramic substrate and a heating substrate disposed on the porous ceramic substrate. The heating substrate heats the porous ceramic substrate by direct contact, so that the e-liquid in the porous ceramic substrate is heated and atomized. At present, some atomizer cores use a heating net as a heating substrate. Figure 1 As shown, the existing heating network 4 generally includes a first electrode portion 41 and a second electrode portion 42 that are relatively arranged, and a mesh heating portion 43 connected between the first electrode portion 41 and the second electrode portion 42. The mesh heating portion 43 includes a plurality of heating wires 431 (four are shown in the figure) arranged in sequence. Each heating wire 431 is bent and extended in a wave shape (specifically, bent and extended in a zigzag shape), and each bending position of two adjacent heating wires 431 above and below are connected to form a mesh structure.

[0004] After the mesh heating part 43 is powered on, since the temperature at the connection point 430 between the heating wires 431 is higher, it is easier to generate carbon deposits at the connection point 430 (i.e., the carbon deposits are generally concentrated at the connection point 430). Since the bending positions of the two adjacent heating wires 431 in the current heating net 4 are connected, that is, the number of connection points 430 is large, the heating net 4 has more carbon deposits, which not only affects the atomization taste, but also shortens the service life of the atomization core. Utility Model Content

[0005] The utility model aims to provide a heating structure, which can reduce the number of carbon deposition points, reduce the influence of carbon deposition on the heating efficiency of the mesh heating part, and delay the attenuation of the atomized taste.

[0006] The utility model provides a heating structure, comprising a first electrode portion and a second electrode portion arranged opposite to each other at an interval, and a mesh heating portion connected between the first electrode portion and the second electrode portion, the mesh heating portion comprising a plurality of heating wires arranged at an interval, each of the heating wires being bent and extended in a wave shape, and the two ends of each of the heating wires being respectively connected to the first electrode portion and the second electrode portion; of each two adjacent heating wires, a partially bent position of one of the heating wires is connected to a partially bent position of the other heating wire through an extension portion.

[0007] In one feasible manner, each of the heating wires is formed by connecting a plurality of bending units in sequence, the bending units are of a V-shaped structure or an inverted V-shaped structure, and the bending units in each two adjacent heating wires correspond one to another in the upper and lower parts; in each two adjacent heating wires, a partial bending unit of one of the heating wires is connected to a partial bending unit of the other heating wire through the extension portion.

[0008] In one achievable manner, among every two adjacent heating wires, the bending unit of one of the heating wires is connected to the corresponding bending units above and below the other heating wire through the extension portion, or the bending unit of one of the heating wires is connected to the adjacent bending units left and right of the other heating wire through the extension portion.

[0009] In a feasible manner, at least two of the bending units in each of the heating wires are respectively connected to the extension parts, and the bending units in each of the heating wires that are connected to the extension parts are not adjacent.

[0010] In one achievable manner, the number of bending units in each heating wire is a, the number of extending portions is b, and b is 1 / 5 to 1 / 3 of a.

[0011] In an achievable manner, among every two adjacent heating wires, the wave crest position of one of the heating wires is connected to the wave trough position of the other heating wire through the extension portion;

[0012] Alternatively, among every two adjacent heating wires, the trough position of one of the heating wires is connected to the trough position of the other heating wire through the extension portion;

[0013] Alternatively, among every two adjacent heating wires, the crest position of one of the heating wires is connected to the crest position of the other heating wire through the extending portion.

[0014] In one achievable manner, among the plurality of heating wires, a heat-conducting portion extending and protruding outward is provided at each crest position of the heating wire located at the top and at each trough position of the heating wire located at the bottom.

[0015] In one feasible manner, a plurality of the heating wires are arranged in an interval arrangement along a first direction, and the heat conducting portion is a long strip structure extending along the first direction; along the first direction, the height of the heating wire is c, and the length of the heat conducting portion is d, and d is 3 / 4 to 1 of c.

[0016] In a feasible manner, each heat conducting portion is provided with a first hook at one end away from the heating wire, and the first hook is bent and connected to the heat conducting portion.

[0017] The utility model also provides an atomizer core, comprising the heating structure and a porous matrix, wherein the heating structure is arranged on the surface of the porous matrix.

[0018] The heating structure provided by the utility model optimizes the structure of the mesh heating part, connects the partial bending positions of two adjacent heating wires in the mesh heating part through an extension part, and can reduce the connection points of the two adjacent heating wires as much as possible while ensuring the resistance value of the mesh heating part, thereby reducing the number of carbon deposition points and the generation of carbon deposition, thereby reducing the influence of carbon deposition on the heating efficiency of the mesh heating part, delaying the attenuation of the atomization taste, and extending the service life of the atomization core. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the planar structure of the heating network in the prior art.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the atomizer core in the embodiment of the utility model.

[0021] Figure 3 for Figure 2 Top view of the .

[0022] Figure 4 for Figure 2 Schematic cross-section of .

[0023] Figure 5 for Figure 2 Schematic diagram of the explosion structure.

[0024] Figure 6 for Figure 2 Bottom view of .

[0025] Figure 7 It is a schematic diagram of the planar structure of the heating structure in the embodiment of the utility model.

[0026] Figure 8 It is a schematic diagram of the planar structure of the heating structure in another embodiment of the utility model.

[0027] Fig. 9 It is a schematic diagram of the planar structure of the heating structure in another embodiment of the utility model.

[0028] Fig.10 It is a schematic diagram of the planar structure of the heating structure in another embodiment of the utility model. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The directional words such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the utility model are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection claimed by the utility model.

[0032] like Figures 5 to 7 As shown, the heating structure 1 provided by the embodiment of the utility model comprises a first electrode portion 11 and a second electrode portion 12 arranged opposite to each other at intervals, and a mesh heating portion 13 connected between the first electrode portion 11 and the second electrode portion 12. The mesh heating portion 13 comprises a plurality of (including two) heating wires 131 arranged at intervals, each heating wire 131 is bent and extended in a wave shape, and the two ends of each heating wire 131 are respectively connected to the first electrode portion 11 and the second electrode portion 12. Among them, the first electrode portion 11 and the second electrode portion 12 are respectively used to be connected to the positive and negative poles of a power source (not shown).

[0033] In every two adjacent heating wires 131, a partial bending position of one heating wire 131 is connected to a partial bending position of the other heating wire 131 through an extension portion 132 (that is, the two adjacent heating wires 131 are not connected at all bending positions), thereby reducing the connection points of the two adjacent heating wires 131 and further reducing the number of carbon deposition points.

[0034] The heating structure 1 provided by the embodiment of the utility model optimizes the structure of the mesh heating part 13, connects the partial bending positions of two adjacent heating wires 131 in the mesh heating part 13 through the extension part 132, and ensures the resistance value of the mesh heating part 13 (it should be noted that if the heating wires 131 are not connected to each other, since the resistance value of a single heating wire 131 is relatively large, the overall resistance value of the mesh heating part 13 will be large, which is not conducive to controlling the resistance value of the mesh heating part 13; and when the heating wires 131 are connected together, a parallel structure is formed between the heating wires 131, thereby reducing the overall resistance value of the mesh heating part 13, which is conducive to controlling the resistance value of the mesh heating part 13), it can reduce the connection points of two adjacent heating wires 131 as much as possible, thereby reducing the number of carbon deposition points and the generation of carbon deposition, thereby reducing the influence of carbon deposition on the heating efficiency of the mesh heating part 13, delaying the attenuation of the atomization taste, and extending the service life of the atomization core.

[0035] like Figure 7As shown, as an implementation mode, a plurality of heating wires 131 in the mesh heating portion 13 are arranged at intervals along the first direction Y, and each heating wire 131 is bent and extended in a wave shape along the second direction X; wherein the second direction X is perpendicular to the first direction Y. In this embodiment, each heating wire 131 is bent and extended in a wave shape in the horizontal direction, and a plurality of heating wires 131 in the mesh heating portion 13 are arranged at intervals in the longitudinal direction.

[0036] like Figure 7 As shown, as an implementation mode, the mesh heating portion 13 includes two heating wires 131 arranged at intervals. Of course, in other embodiments, the number of the heating wires 131 can be more.

[0037] like Figure 7 As shown in FIG. 1 , as an embodiment, each heating wire 131 is formed by connecting a plurality of bending units 131A in sequence, and the bending unit 131A is a V-shaped structure or an inverted V-shaped structure (such as Figure 7 As shown, in this embodiment, the bending unit 131A is an inverted V-shaped structure, and the bending units 131A in each of the two adjacent heating wires 131 correspond to each other. The bending positions of the heating wires 131 are located at the middle position of the bending unit 131A (i.e., the middle bending position of the bending unit 131A) and the two end positions (i.e., the connecting positions of the adjacent bending units 131A). In each of the two adjacent heating wires 131, the partial bending unit 131A of one heating wire 131 is connected to the partial bending unit 131A of the other heating wire 131 through the extension portion 132.

[0038] like Figure 7 As shown, as an embodiment, in each of two adjacent heating wires 131, the bending unit 131A of one heating wire 131 is connected to the bending unit 131A adjacent to the left and right of the other heating wire 131 through the extension part 132, so as to avoid the setting length of the extension part 132 being too long, so as to simplify the connection structure. Specifically, in this embodiment, each heating wire 131 is formed by six bending units 131A of an inverted V-shaped structure connected in sequence; wherein, the second bending unit 131A in the upper heating wire 131 is connected to the third bending unit 131A in the lower heating wire 131 (the two are adjacent to each other on the left and right), and the fourth bending unit 131A in the upper heating wire 131 is connected to the fifth bending unit 131A in the lower heating wire 131 (the two are adjacent to each other on the left and right).

[0039] like Figure 8As shown, as another embodiment, in each of two adjacent heating wires 131, the bending unit 131A of one heating wire 131 is connected to the corresponding bending unit 131A of the other heating wire 131 via an extension portion 132, thereby avoiding the setting length of the extension portion 132 being too long, so as to simplify the connection structure. Specifically, in this embodiment, each heating wire 131 is formed by six bending units 131A of an inverted V-shaped structure connected in sequence; wherein, the second bending unit 131A in the upper heating wire 131 is connected to the second bending unit 131A in the lower heating wire 131 (the two correspond to each other from top to bottom), and the fourth bending unit 131A in the upper heating wire 131 is connected to the fourth bending unit 131A in the lower heating wire 131 (the two correspond to each other from top to bottom).

[0040] like Figure 7 As shown, as an embodiment, at least two bending units 131A in each heating wire 131 are respectively connected to the extension 132, and the bending units 131A connected to the extension 132 in each heating wire 131 are not adjacent, that is, the extensions 132 are not arranged adjacent to each other (that is, each extension 132 is not connected to the adjacent bending units 131A), so that the positions of the extensions 132 are more dispersed, thereby avoiding heat concentration (the temperature at the extension 132 is higher), which is conducive to improving heating uniformity and reducing the generation of carbon deposits. For example, in this embodiment, the second bending unit 131A and the fourth bending unit 131A in the upper heating wire 131 are respectively connected to the extension 132, and the two bending units 131A are not adjacent, so that the two extensions 132 are not adjacent.

[0041] like Figure 7 As shown, as an implementation mode, in every two adjacent heating wires 131, the peak position M of the first heating wire 131 corresponds one-to-one with the peak position M of the second heating wire 131, and the trough position N of the first heating wire 131 corresponds one-to-one with the trough position N of the second heating wire 131, that is, the waveform structures of the two adjacent heating wires 131 are the same.

[0042] like Fig.10 As shown, as another implementation, in every two adjacent heating wires 131, the peak position M of the first heating wire 131 corresponds to the trough position N of the second heating wire 131 in one-to-one correspondence, and the trough position N of the first heating wire 131 corresponds to the peak position M of the second heating wire 131 in one-to-one correspondence, that is, the waveform structures of the two adjacent heating wires 131 are opposite.

[0043] like Figure 7As shown in the figure, as an implementation mode, among every two adjacent heating wires 131, the wave crest position M of one heating wire 131 is connected to the wave trough position N of the other heating wire 131 through an extension portion 132. Specifically, in this embodiment, among every two adjacent heating wires 131, the wave crest position M of the heating wire 131 located at the bottom is connected to the wave trough position N of the heating wire 131 located at the top through an extension portion 132. Of course, in other embodiments, the wave crest position M of the heating wire 131 located at the top may be connected to the wave trough position N of the heating wire 131 located at the bottom through an extension portion 132.

[0044] like Figure 8 As shown, as another implementation, among every two adjacent heating wires 131 , the trough position N of one heating wire 131 is connected to the trough position N of the other heating wire 131 through an extension portion 132 .

[0045] like Fig. 9 As shown, as another implementation, in every two adjacent heating wires 131 , the crest position M of one heating wire 131 is connected to the crest position M of the other heating wire 131 through an extension portion 132 .

[0046] like Figure 7 As shown, as an implementation mode, the number of bending units 131A in each heating wire 131 is a (the number of bending units 131A is generally not more than 10), the number of extensions 132 is b, b is 1 / 5 to 1 / 3 of a, that is, a is 3 to 5 times of b, so that the extensions 132 have a suitable number, and then the number of carbon deposition points is reduced as much as possible under the premise of ensuring the resistance value of the mesh heating part 13. Preferably, the number of extensions 132 is 2 to 3.

[0047] like Figure 6 and Figure 7 As shown, as an implementation mode, among the multiple heating wires 131, each crest position M of the heating wire 131 located at the top and each trough position N of the heating wire 131 located at the bottom are provided with a heat conducting portion 133 extending outward (i.e., toward the side away from the heating wire 131), and the heat conducting portion 133 is connected to the heating wire 131; the heat generated on the heating wire 131 can be quickly conducted to the porous matrix 2 near the heat conducting portion 133 through the heat conducting portion 133 (the heat conducting portion 133 only plays a heat conducting role; the current will not flow through the heat conducting portion 133, i.e., the heat conducting portion 133 itself does not generate heat during operation), thereby enabling the tobacco oil near the heat conducting portion 133 to be heated in advance and be in a state to be atomized, and the tobacco oil in the state to be atomized can be quickly atomized after being further heated by the heating wire 131, thereby improving the atomization efficiency.

[0048] like Figure 7As shown in the figure, as an embodiment, the heat conducting portion 133 is a long strip structure extending along the first direction Y; along the first direction Y, the height of the heating wire 131 (that is, the distance between the upper and lower sides of the heating wire 131) is c, and the length of the heat conducting portion 133 is d, and d is 3 / 4 to 1 of c. For example, if the height of the heating wire 131 is 4 cm, the length of the heat conducting portion 133 is 3 to 4 cm.

[0049] like Figure 7 As shown, as an embodiment, the heating wire 131, the extension portion 132 and the heat conducting portion 133 have the same width, for example, 0.35-0.50 mm. Of course, in other embodiments, the heating wire 131, the extension portion 132 and the heat conducting portion 133 may have different widths.

[0050] like Figures 5 to 7 As shown, as an embodiment, each heat-conducting portion 133 is provided with a first hook 134 at one end away from the heating wire 131, and the first hook 134 is bent and connected to the heat-conducting portion 133. The first hook 134 is used to be embedded in the porous matrix 2, thereby improving the bonding tightness between the heating structure 1 and the porous matrix 2.

[0051] like Figures 5 to 7 As shown, as an embodiment, a second hook 135 is provided on the first electrode portion 11 and the second electrode portion 12, and the second hook 135 is bent and connected to the first electrode portion 11 / the second electrode portion 12, and the second hook 135 is used to be embedded in the porous matrix 2 to further improve the bonding tightness between the heating structure 1 and the porous matrix 2.

[0052] As an implementation manner, the entire heating structure 1 is an integrated structure, and the heating structure 1 can be made of metal materials such as stainless steel (such as 310 stainless steel, 316 stainless steel, etc.), titanium, chromium, nickel-chromium, iron-chromium-aluminum, etc.

[0053] like Figures 2 to 6 As shown, the embodiment of the utility model further provides an atomizer core, comprising the above-mentioned heating structure 1 and a porous substrate 2, wherein the heating structure 1 is arranged on the surface of the porous substrate 2. The porous substrate 2 is a porous structure (i.e., a plurality of micropores are arranged in the porous substrate 2), and the porous substrate 2 can be specifically porous ceramic or porous glass, etc. The heating structure 1 generates heat after being energized to heat and atomize the atomized liquid (e.g., e-liquid) in the porous substrate 2.

[0054] like Figures 2 to 4 As shown, as an embodiment, the heating structure 1 is arranged on the bottom surface of the porous matrix 2, and a liquid storage tank 21 for temporarily storing atomized liquid is provided on the top surface of the porous matrix 2. The liquid storage tank 21 is arranged corresponding to the mesh heating part 13, and the mesh heating part 13 can heat and atomize the atomized liquid in the liquid storage tank 21.

[0055] like Figure 4 As shown, as an embodiment, in the direction from the notch 211 of the liquid storage tank 21 to the bottom 212 of the liquid storage tank 21 (that is, from top to bottom), the cross section of the liquid storage tank 21 is an inverted trapezoidal structure with a gradually decreasing width. Such a configuration is conducive to increasing the volume of the liquid storage tank 21 on the one hand, and on the other hand, it can make the atomized liquid flow downward along the inner wall of the liquid storage tank 21 more smoothly, reducing the adhesion of the atomized liquid on the inner wall of the liquid storage tank 21.

[0056] As an implementation mode, the porous substrate 2 is a porous ceramic body; the porosity of the porous substrate 2 is 60% to 70%, and the median pore diameter of the porous substrate 2 is 25 micrometers to 40 micrometers.

[0057] As an embodiment, the components of the porous matrix 2 include a skeleton material and a high-temperature sintering aid, wherein the skeleton material is one or more of diatomite, cordierite, silica powder, quartz powder, and kaolin, and the high-temperature sintering aid is glass powder (for example, SiO2-B2O3-ZnO glass powder, with a Tg temperature of 450°C-550°C). The weight percentages of the components are: 35-60% for the skeleton material and 40-65% for the high-temperature sintering aid.

[0058] As an embodiment, the porous matrix 2 is formed by dewaxing and sintering a ceramic green body; the components of the ceramic green body include a skeleton material, a high-temperature sintering aid, a pore-forming agent, paraffin and stearic acid. The skeleton material is one or more of diatomaceous earth, cordierite, silica powder, quartz powder, and kaolin, the high-temperature sintering aid is glass powder (for example, SiO2-B2O3-ZnO glass powder, Tg temperature is 450℃-550℃), and the pore-forming agent is one or more of PMMA, PS balls, starch, lignin, graphite and carbon powder. The weight percentages of each component are: skeleton material is 25-55%, high-temperature sintering aid is 20%-45%, pore-forming agent is 25%-50%, paraffin is 10%-20%, stearic acid is 2%-10%, and the sum of the weight percentages of each component is 100%.

[0059] As an embodiment, the preparation method of the atomizer core is:

[0060] S10: mixing and ball-milling a certain amount of framework material, high-temperature sintering aid and pore-forming agent (specifically, the framework material, high-temperature sintering aid and pore-forming agent can be placed in the same container, and then zirconium balls are added for mixed ball-milling) to obtain a mixed powder; the mixed ball-milling time can be 3-8 hours;

[0061] S20: mixing the above mixed powder with a certain amount of paraffin wax and stearic acid to obtain a ceramic slurry; the mixing and stirring temperature is 60° C.-120° C., and the mixing and stirring time is 2-8 hours;

[0062] S30: placing the heating structure 1 in a grouting machine in advance, then injecting the ceramic slurry into the grouting machine, and obtaining a ceramic green body by hot die casting;

[0063] S40: Dewaxing and sintering the ceramic green body at a preset temperature, and obtaining an atomizing core after cooling.

[0064] As an embodiment, the above-mentioned S30 step specifically includes: placing the heating structure 1 in a grouting machine in advance, and then injecting the above-mentioned ceramic slurry into the grouting machine; setting the insulation temperature of the grouting machine to 60℃-75℃, stirring and degassing for 30-60 minutes; under a preset pressure, hot-die casting the ceramic slurry, wherein the preset pressure range can specifically be 0.5-0.8Mpa.

[0065] As an embodiment, in the above step S40, the wax is drained by siphoning, the wax draining temperature is 180℃-280℃, and the wax draining time is 1-6 hours; preferably, the wax draining temperature is 200℃-250℃, and the wax draining time is 2-4 hours. The sintering temperature is 500℃-800℃, and the sintering time is 2-8 hours; preferably, the sintering temperature is 600℃-750℃, and the sintering time is 3-5 hours.

[0066] This embodiment also provides an electronic atomizer, including the above-mentioned atomization core.

[0067] The heating structure 1 provided in this embodiment optimizes the structure of the mesh heating part 13, and connects the partial bending positions of two adjacent heating wires 131 in the mesh heating part 13 through the extension part 132. Under the premise of ensuring the resistance value of the mesh heating part 13, the connection points of the two adjacent heating wires 131 can be reduced as much as possible, thereby reducing the number of carbon deposition points and the generation of carbon deposition, thereby reducing the influence of carbon deposition on the heating efficiency of the mesh heating part 13, delaying the attenuation of the atomization taste, and extending the service life of the atomization core.

[0068] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A heating structure, comprising a first electrode portion (11) and a second electrode portion (12) arranged opposite to each other at an interval, and a mesh heating portion (13) connected between the first electrode portion (11) and the second electrode portion (12), characterized in that: The mesh heating portion (13) comprises a plurality of heating wires (131) arranged at intervals, each heating wire (131) being bent and extended in a wave shape, and two ends of each heating wire (131) being respectively connected to the first electrode portion (11) and the second electrode portion (12); among each two adjacent heating wires (131), a partial bending position of one heating wire (131) is connected to a partial bending position of another heating wire (131) via an extension portion (132).

2. The heating structure according to claim 1, characterized in that: Each heating wire (131) is formed by connecting a plurality of bending units (131A) in sequence, wherein the bending units (131A) are of a V-shaped structure or an inverted V-shaped structure, and the bending units (131A) in each of two adjacent heating wires (131) correspond one to another; in each of two adjacent heating wires (131), a portion of the bending units (131A) of one of the heating wires (131) is connected to a portion of the bending units (131A) of the other heating wire (131) via the extension portion (132).

3. The heating structure according to claim 2, characterized in that: Among every two adjacent heating wires (131), the bending unit (131A) of one of the heating wires (131) is connected to the corresponding bending units (131A) of the other heating wire (131) above and below through the extension portion (132); or, the bending unit (131A) of one of the heating wires (131) is connected to the adjacent bending units (131A) of the other heating wire (131) above and below through the extension portion (132).

4. The heating structure according to claim 2, characterized in that: At least two of the bending units (131A) in each heating wire (131) are respectively connected to the extension portion (132), and the bending units (131A) in each heating wire (131) that are connected to the extension portion (132) are not adjacent.

5. The heating structure according to claim 2, characterized in that: The number of the bending units (131A) in each heating wire (131) is a, the number of the extending portions (132) is b, and b is 1 / 5 to 1 / 3 of a.

6. The heating structure according to claim 1, characterized in that: Among every two adjacent heating wires (131), a wave crest position (M) of one of the heating wires (131) is connected to a wave trough position (N) of the other heating wire (131) via the extension portion (132); Alternatively, among every two adjacent heating wires (131), the trough position (N) of one of the heating wires (131) is connected to the trough position (N) of the other heating wire (131) via the extension portion (132); Alternatively, among every two adjacent heating wires (131), the wave crest position (M) of one of the heating wires (131) is connected to the wave crest position (M) of the other heating wire (131) via the extension portion (132).

7. The heating structure according to any one of claims 1 to 6, characterized in that: Among the plurality of heating wires (131), each crest position (M) of the heating wire (131) located at the top and each trough position (N) of the heating wire (131) located at the bottom are provided with a heat conducting portion (133) extending and protruding outwards.

8. The heating structure according to claim 7, characterized in that: A plurality of heating wires (131) are arranged at intervals along a first direction (Y), and the heat conducting portion (133) is a long strip structure extending along the first direction (Y); along the first direction (Y), the height of the heating wire (131) is c, and the length of the heat conducting portion (133) is d, and d is 3 / 4 to 1 of c.

9. The heating structure according to claim 7, characterized in that: A first hook (134) is provided at one end of each heat conducting portion (133) away from the heating wire (131), and the first hook (134) is bent and connected to the heat conducting portion (133).

10. An atomizer core, characterized in that: It comprises a heating structure (1) and a porous matrix (2) as claimed in any one of claims 1 to 9, wherein the heating structure (1) is arranged on the surface of the porous matrix (2).

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