Heating structure and atomizing core

Abstract

The utility model provides a heating structure, which comprises at least one heating part, the heating part comprises a first clamping piece, a second clamping piece and a heating net, the first clamping piece and the second clamping piece are oppositely arranged at an interval, the heating net is clamped between the first clamping piece and the second clamping piece, and the first clamping piece, the heating net and the second clamping piece are fixed; a liquid inlet hole is formed in the position, corresponding to the heating net, of the second clamping piece, and a smoke outlet hole is formed in the position, corresponding to the heating net, of the first clamping piece. The heating net in the heating structure can keep certain tension and flatness all the time, and the heating net can be tightly attached to the porous base body, so that the atomization core has good atomization efficiency and atomization taste all the time, the problems of dry burning and the like are avoided, and the service life of the atomization core is prolonged. The utility model further provides an atomizing core.

Description

Technical Field

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

[0002] Electronic atomizers are also known as virtual cigarettes, steam cigarettes, electronic cigarettes, aerosol generating devices, etc. They are mainly used to simulate the feeling of smoking without affecting health, so as to help people quit smoking or replace cigarettes. The atomizer core is one of the important components of the electronic atomizer, which is used to heat the atomized oil to generate smoke for users to inhale.

[0003] The current atomizer core generally includes a porous ceramic substrate and a heating substrate disposed on the porous ceramic substrate. The heating substrate is generally a resistor film, a heating wire, a heating net and other structures. 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. Among them, the heating net is widely used due to its advantages such as high heating efficiency and good heating uniformity.

[0004] The heating net and the porous ceramic substrate are generally combined together by sintering. Since the thermal expansion coefficients of the heating net and the porous ceramic substrate are inconsistent, the heating net is prone to stress and deformation during operation, that is, the heating net cannot always maintain its flatness, resulting in a lack of fit between the heating net and the surface of the porous ceramic substrate, thereby affecting the heating efficiency and atomization efficiency; after a period of use, the heating net may even separate from the porous ceramic substrate, resulting in problems such as poor taste and dry burning, and even failure to work normally, affecting the service life of the atomization core. Utility Model Content

[0005] The purpose of the utility model is to provide a heating structure, wherein the heating net can always maintain a certain tension and flatness, and the heating net can keep close contact with the porous matrix, so that the atomizer core always has good atomization efficiency and atomization taste, avoids problems such as dry burning, and prolongs the service life of the atomizer core.

[0006] The utility model provides a heating structure, comprising at least one heating part, wherein the heating part comprises a first clamping piece, a second clamping piece and a heating net, wherein the first clamping piece and the second clamping piece are arranged opposite to each other with an interval, the heating net is clamped between the first clamping piece and the second clamping piece, and the first clamping piece, the heating net and the second clamping piece are fixed to each other; a liquid inlet hole is provided on the second clamping piece at a position corresponding to the heating net, and a smoke outlet hole is provided on the first clamping piece at a position corresponding to the heating net.

[0007] In one achievable manner, the first clamping piece includes a clamping portion and a first electrode portion and a second electrode portion respectively connected to opposite sides of the clamping portion, the heating net is clamped between the clamping portion and the second clamping piece, and the smoke outlet is arranged on the clamping portion.

[0008] In one feasible manner, the clamping portion is an annular structure arranged around the edge of the heating net, the second clamping piece is an annular structure arranged around the edge of the heating net, and the edge of the heating net is clamped between the clamping portion and the second clamping piece.

[0009] In one achievable manner, the heating structure includes two heating parts that are spaced apart from each other and arranged opposite to each other, the first electrode parts of the two heating parts are connected to each other, and the second electrode parts of the two heating parts are connected to each other or spaced apart from each other.

[0010] In one achievable manner, a slot is provided on the first electrode portion and / or the second electrode portion, and the slot is used to reduce a width of the first electrode portion and / or the second electrode portion.

[0011] In one achievable manner, the liquid inlet hole and the smoke outlet hole are arranged opposite to each other, the liquid inlet hole and the smoke outlet hole have the same shape and size, and the inner wall of the liquid inlet hole is flush with the inner wall of the smoke outlet hole.

[0012] In one achievable manner, the area of ​​the liquid inlet hole is 60% to 80% of the area of ​​the heating network; and / or the area of ​​the smoke outlet hole is 60% to 80% of the area of ​​the heating network.

[0013] In one achievable manner, the first clamping piece, the heating net and the second clamping piece are all made of metal, and the first clamping piece, the heating net and the second clamping piece are fixed together by welding.

[0014] In one achievable manner, the second clamping piece is provided with a hook claw for engaging with the porous matrix, and the hook claw extends and protrudes from the second clamping piece toward a side away from the first clamping piece.

[0015] In a feasible manner, the mesh size of the heating net is 50-500 meshes, and the thickness of the heating net is 0.08 mm-0.12 mm.

[0016] The utility model also provides an atomizer core, comprising the above-mentioned heating structure and a porous matrix; the heating net is arranged on the surface of the porous matrix, the second clamping sheet is embedded in the porous matrix, and the first clamping sheet is located on a side of the second clamping sheet away from the porous matrix.

[0017] The utility model also provides an electronic atomizer, comprising the above-mentioned atomization core.

[0018] The heating structure provided by the utility model is provided with a first clamping sheet, a second clamping sheet and a heating net, the heating net is clamped between the first clamping sheet and the second clamping sheet, and the first clamping sheet, the heating net and the second clamping sheet are fixed to each other, the first clamping sheet and the second clamping sheet can play a good clamping and fixing role on the heating net, so that the heating net can always maintain a certain tension and flatness, so that the heating net can keep a close fit with the porous matrix, reduce or avoid the problem of deformation or falling off of the heating net due to thermal stress, so that the atomization core always has good atomization efficiency and atomization taste, avoid problems such as dry burning, improve the working stability of the atomization core, and extend the service life of the atomization core. At the same time, a liquid inlet hole is provided on the second clamping sheet at a position corresponding to the heating net, so as not to affect the transport of the atomized liquid in the porous matrix to the heating net; a smoke outlet is provided on the first clamping sheet at a position corresponding to the heating net, so as not to affect the discharge of smoke generated by atomization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the heating structure in the embodiment of the utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of a single heating part.

[0021] Figure 3 for Figure 2 Schematic diagram of the explosion structure.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the atomizer core in the embodiment of the utility model.

[0023] Figure 5 for Figure 4 Bottom view of .

[0024] Figure 6 for Figure 4 Schematic cross-section of . DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] like Figures 1 to 3 As shown, the heating structure provided by the embodiment of the utility model includes at least one heating part 1, and the heating part 1 includes a first clamping plate 11, a second clamping plate 12 and a heating net 13, and the heating net 13 is used to generate heat after power is turned on. The first clamping plate 11 and the second clamping plate 12 are arranged opposite to each other with a gap, and the heating net 13 is clamped between the first clamping plate 11 and the second clamping plate 12, and the first clamping plate 11, the heating net 13 and the second clamping plate 12 are fixed to each other. A liquid inlet hole 120 is provided on the second clamping plate 12 at a position corresponding to the heating net 13, and the porous matrix 2 (the specific structure of the porous matrix 2 can be referred to Figures 4 to 6 ) can be transported to the heating network 13 through the liquid inlet hole 120 for heating and atomization; a smoke outlet 110 is provided at a position corresponding to the heating network 13 on the first clamping piece 11, and the smoke generated by atomization can be discharged through the smoke outlet 110.

[0029] The heating structure provided in the present embodiment is provided with a first clamping sheet 11, a second clamping sheet 12 and a heating net 13. The heating net 13 is clamped between the first clamping sheet 11 and the second clamping sheet 12, and the first clamping sheet 11, the heating net 13 and the second clamping sheet 12 are fixed to each other. The first clamping sheet 11 and the second clamping sheet 12 can play a good clamping and fixing role on the heating net 13, so that the heating net 13 can always maintain a certain tension (tension) and flatness, so that the heating net 13 can keep a close fit with the porous matrix 2, reduce or avoid the problem of deformation or falling off of the heating net 13 due to thermal stress, so that the atomization core always has good atomization efficiency and atomization taste, avoids problems such as dry burning, improves the working stability of the atomization core, and extends the service life of the atomization core. At the same time, a liquid inlet hole 120 is provided on the second clamping piece 12 at a position corresponding to the heating net 13, so as not to affect the delivery of the atomized liquid in the porous matrix 2 to the heating net 13; a smoke outlet hole 110 is provided on the first clamping piece 11 at a position corresponding to the heating net 13, so as not to affect the discharge of smoke generated by atomization.

[0030] like Figures 1 to 3 As shown, as an embodiment, the first clamping sheet 11, the second clamping sheet 12 and the heating net 13 are planar structures. Of course, in other embodiments, the first clamping sheet 11, the second clamping sheet 12 and the heating net 13 can also be bent into a cylindrical structure.

[0031] like Figures 1 to 3 As shown, as an embodiment, the first clamping sheet 11 includes a clamping portion 111 and a first electrode portion 112 and a second electrode portion 113 respectively connected to opposite sides of the clamping portion 111, and the first electrode portion 112 and the second electrode portion 113 are respectively used to electrically connect to the positive and negative electrodes of a power source (not shown). The clamping portion 111 and the second clamping sheet 12 are arranged opposite to each other at intervals, the heating net 13 is clamped between the clamping portion 111 and the second clamping sheet 12, and the smoke outlet 110 is arranged on the clamping portion 111.

[0032] like Figures 1 to 3 As shown, as an embodiment, the clamping portion 111 is an annular structure arranged around the edge of the heating net 13, the second clamping piece 12 is an annular structure arranged around the edge of the heating net 13, and the edge of the heating net 13 is clamped between the clamping portion 111 and the second clamping piece 12. Such a configuration not only allows the size of the liquid inlet 120 and the size of the smoke outlet 110 to be set larger, which is convenient for the transmission of the atomized liquid and the exhaust of smoke, and ensures a higher atomization efficiency, but also allows the surrounding positions of the heating net 13 to be well clamped and fixed, thereby improving the clamping effect of the heating net 13 and ensuring the tension and flatness of the heating net 13.

[0033] Specifically, in this embodiment, the heating net 13 is a rectangular structure, the clamping portion 111 includes two first side edges 1111 and two second side edges 1112 connected to each other, the two first side edges 1111 are arranged opposite to each other at intervals in the upper and lower directions, and the two second side edges 1112 are arranged opposite to each other at intervals in the left and right directions, and the smoke outlet 110 is formed by enclosing the two first side edges 1111 and the two second side edges 1112. The second clamping piece 12 includes two third side edges 121 and two fourth side edges 122 connected to each other, the two third side edges 121 are arranged opposite to each other at intervals in the upper and lower directions, and the two fourth side edges 122 are arranged opposite to each other at intervals in the left and right directions, and the liquid inlet 120 is formed by enclosing the two third side edges 121 and the two fourth side edges 122. The upper and lower long sides of the heating net 13 are respectively clamped between the two first side edges 1111 and the two third side edges 121, and the left and right short sides of the heating net 13 are respectively clamped between the two second side edges 1112 and the two fourth side edges 122, so as to clamp and fix the surrounding positions of the heating net 13. Of course, in other embodiments, the heating net 13 can also be other shapes, such as a circular structure, and the shapes of the clamping portion 111 and the second clamping piece 12 can be adjusted accordingly according to the shape of the heating net 13.

[0034] As an implementation mode, the area of ​​the liquid inlet hole 120 is 60% to 80% of the area of ​​the heating net 13, and the area of ​​the smoke outlet hole 110 is 60% to 80% of the area of ​​the heating net 13. Such an arrangement can ensure the transmission efficiency and smoke exhaust efficiency of the atomized liquid, and can also ensure the clamping effect of the clamping part 111 and the second clamping piece 12 on the heating net 13 (if the areas of the liquid inlet hole 120 and the smoke outlet hole 110 are too large, the area of ​​the clamped part of the heating net 13 is too small, which will affect the clamping effect of the clamping part 111 and the second clamping piece 12 on the heating net 13; if the areas of the liquid inlet hole 120 and the smoke outlet hole 110 are too small, the transmission efficiency and smoke exhaust efficiency of the atomized liquid will be affected).

[0035] like Figure 3 and Figure 6 As shown, as an embodiment, the liquid inlet hole 120 is arranged opposite to the smoke outlet hole 110, the liquid inlet hole 120 and the smoke outlet hole 110 are of the same shape and size, the liquid inlet hole 120 and the smoke outlet hole 110 have the same area, and the inner wall of the liquid inlet hole 120 is flush with the inner wall of the smoke outlet hole 110 (that is, there is no misalignment between the liquid inlet hole 120 and the smoke outlet hole 110). Such an arrangement can ensure the transmission efficiency and smoke exhaust efficiency of the atomized liquid, and can also ensure the clamping effect of the clamping portion 111 and the second clamping piece 12 on the heating network 13.

[0036] like Figures 1 to 3 and Figure 6 As shown, as an embodiment, the second clamping piece 12 is provided with a hook 14 for engaging with the porous matrix 2, and the hook 14 extends from the second clamping piece 12 toward the side away from the first clamping piece 11. The hook 14 can further improve the bonding force between the second clamping piece 12 and the porous matrix 2, thereby preventing the heating structure from separating or detaching from the porous matrix 2, and further reducing or avoiding the problem of deformation or falling off of the heating network 13 due to thermal stress. In other embodiments, the first clamping piece 11 can also be provided with a hook 14 for engaging with the porous matrix 2.

[0037] like Figures 1 to 3 As shown, as an embodiment, the upper and lower ends of the second clamping piece 12 are respectively provided with multiple claws 14, the multiple claws 14 at the upper end of the second clamping piece 12 are arranged at intervals on the left and right, and the multiple claws 14 at the lower end of the second clamping piece 12 are arranged at intervals on the left and right.

[0038] As an embodiment, the first clamping sheet 11, the heating net 13 and the second clamping sheet 12 are all made of metal, specifically, they can be made of stainless steel (such as 304 stainless steel, 310 stainless steel, 316 stainless steel, etc.), titanium, chromium, nickel-chromium, iron-chromium-aluminum and other metal materials. The first clamping sheet 11, the heating net 13 and the second clamping sheet 12 are fixed by welding. When welding, the heating net 13 can be first welded and fixed to one of the first clamping sheet 11 and the second clamping sheet 12, and then welded and fixed to the other one; for example, the heating net 13 is first welded to the first clamping sheet 11, and then the heating net 13 and the first clamping sheet 11 and the second clamping sheet 12 are welded and fixed; or the heating net 13 is first welded to the second clamping sheet 12, and then the heating net 13 and the second clamping sheet 12 are welded and fixed to the first clamping sheet 11.

[0039] like Figure 3 As shown, as an embodiment, the heating net 13 is a grid-shaped porous dense metal net, and the heating net 13 is provided with a plurality of mesh holes 131 arranged in an array, and the mesh holes 131 of the heating net 13 have a mesh number of 50 to 500, and the thickness of the heating net 13 is 0.08 mm to 0.12 mm. This type of grid-shaped porous dense metal net is generally woven from metal wires, with a fine wire diameter, a large mesh number, good consistency, good heating uniformity, and a large atomization amount.

[0040] like Figures 1 to 3 As shown, as an embodiment, a slot 116 is provided on the first electrode portion 112 and the second electrode portion 113, and the slot 116 can reduce the width of the first electrode portion 112 and the second electrode portion 113, thereby avoiding the porous substrate 2 from cracking when the first clamping plate 11 is co-fired with the porous substrate 2 (the heating structure is generally combined with the porous substrate 2 through high-temperature sintering. Since the thermal expansion coefficients of the heating structure and the porous substrate 2 are inconsistent, and the thermal shrinkage rate of the heating structure made of metal material is relatively large, if the width of the first electrode portion 112 and the second electrode portion 113 is relatively large, they will shrink significantly during the cooling process after sintering, thereby causing the porous substrate 2 to crack).

[0041] like Figure 1 and Figure 6 As shown, as an embodiment, the heating structure includes two heating parts 1 arranged opposite to each other at an interval, and the two heating parts 1 are respectively used to be arranged on the surfaces of the two opposite sides of the porous substrate 2, so as to form a heating effect on both sides of the porous substrate 2, thereby improving the atomization efficiency and atomization amount, and meeting the user's demand for large smoke volume.

[0042] like Figure 1 and Figure 6As shown, as an implementation mode, the first electrode portions 112 of the two heating parts 1 are interconnected (specifically, the first electrode portions 112 of the two heating parts 1 are electrically connected via the electrical connection portion 115), and the second electrode portions 113 of the two heating parts 1 are spaced apart from each other (i.e., not connected to each other), and the second electrode portions 113 of the two heating parts 1 can be connected to the circuit separately, so that the two heating parts 1 can work simultaneously or separately (alternately), thereby extending the service life of the heating parts 1; and when working simultaneously, the heat generation can be increased, the explosive power of the heating structure can be improved, and the atomization efficiency and atomization amount can be improved. Of course, in other embodiments, the second electrode portions 113 of the two heating parts 1 can also be interconnected, and in this case, the two heating parts 1 work simultaneously.

[0043] like Figures 4 to 6 As shown, this embodiment also provides an atomizer core, including the above-mentioned heating structure and a porous substrate 2; the porous substrate 2 can be a porous ceramic body or a porous glass body, etc., and the heating structure can be composited with the porous substrate 2 by sintering. The heating portion 1 is arranged on the surface of at least one side of the porous substrate 2; wherein the heating net 13 is arranged on the surface of the porous substrate 2, the second clamping sheet 12 is embedded in the porous substrate 2, and the first clamping sheet 11 is located on the side of the second clamping sheet 12 away from the porous substrate 2.

[0044] like Figure 4 and Figure 6 As shown, as an embodiment, a liquid storage tank 20 for storing atomized liquid is provided in the porous matrix 2, and the atomized liquid in the liquid storage tank 20 can be transferred to the heating network 13 through the porous matrix 2 for heating and atomization.

[0045] As an embodiment, the atomized liquid in the electronic atomizer is stored in the liquid storage tank 20 (that is, there is no need to set up an additional liquid storage tank for storing the atomized liquid in the electronic atomizer), that is, the atomizer core not only plays the role of heating and atomizing the atomized liquid, but also plays the role of long-term liquid storage. The top of the porous matrix 2 is provided with an opening connected to the liquid storage tank 20, and the atomizer core also includes a sealing cover (not shown), which is arranged at the opening and seals the opening. Specifically, the atomized liquid can be loaded into the liquid storage tank 20 through the opening, and after the atomized liquid is loaded, the opening is sealed by the sealing cover to prevent leakage. The sealing cover can be, for example, a silicone cover.

[0046] As another embodiment, the liquid storage tank 20 serves to temporarily store the atomized liquid, and in this case, the opening at the top of the porous substrate 2 does not need to be sealed.

[0047] like Figures 4 to 6As shown, as an embodiment, the porous matrix 2 includes a bottom wall 21 and a side wall 22 connected to the bottom wall 21, the side wall 22 is formed by extending upward from the outer edge of the bottom wall 21, the side wall 22 and the bottom wall 21 are an integral structure, the liquid storage tank 20 is surrounded by the side wall 22 and the bottom wall 21, and the heating part 1 is arranged on the outer surface of the side wall 22. Of course, in other embodiments, the heating part 1 can also be arranged on the lower surface of the bottom wall 21.

[0048] like Figure 1 and Figures 4 to 6 As shown, as an embodiment, the heating structure includes two heating parts 1 arranged opposite to each other at intervals, and the two heating parts 1 are respectively arranged on the surfaces of the two opposite sides of the porous substrate 2. The first electrode parts 112 of the two heating parts 1 are connected by an electrical connection part 115, and the electrical connection part 15 is in contact with the lower surface of the bottom wall 21; the bottom ends of the second electrode parts 113 of the two heating parts 1 are provided with a stop part 114, and the stop part 114 is in contact with the lower surface of the bottom wall 21, which not only facilitates the electrical connection between the first electrode part 112 and the second electrode part 113 and the power supply (the power supply can be connected to the electrical connection part 15 and the stop part 114 respectively through a conductive member (such as a wire, a conductive rod, etc.)), but also can further fix the heating structure on the porous substrate 2.

[0049] like Figures 4 to 6 As shown, as an embodiment, the porous substrate 2 is a rectangular parallelepiped structure, and the porous substrate 2 has a length direction L, a width direction W, and a height direction H. The heating portion 1 is arranged on the side walls 22 of the porous substrate 2 on opposite sides along the width direction W, so that the heating portion 1 has a larger setting area, that is, the contact area between the heating network 13 and the porous substrate 2 is larger, thereby further improving the atomization efficiency.

[0050] This embodiment also provides an electronic atomizer, including the above-mentioned atomization core.

[0051] The heating structure provided in the present embodiment is provided with a first clamping sheet 11, a second clamping sheet 12 and a heating net 13. The heating net 13 is clamped between the first clamping sheet 11 and the second clamping sheet 12, and the first clamping sheet 11, the heating net 13 and the second clamping sheet 12 are fixed to each other. The first clamping sheet 11 and the second clamping sheet 12 can play a good clamping and fixing role on the heating net 13, so that the heating net 13 can always maintain a certain tension (tension) and flatness, so that the heating net 13 can keep a close fit with the porous matrix 2, reduce or avoid the problem of deformation or falling off of the heating net 13 due to thermal stress, so that the atomization core always has good atomization efficiency and atomization taste, avoids problems such as dry burning, improves the working stability of the atomization core, and extends the service life of the atomization core.

[0052] 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 at least one heating part (1), characterized in that: The heating part (1) comprises a first clamping piece (11), a second clamping piece (12) and a heating net (13); the first clamping piece (11) and the second clamping piece (12) are arranged opposite to each other at a distance; the heating net (13) is clamped between the first clamping piece (11) and the second clamping piece (12); and the first clamping piece (11), the heating net (13) and the second clamping piece (12) are fixed to each other; a liquid inlet hole (120) is provided on the second clamping piece (12) at a position corresponding to the heating net (13); and a smoke outlet hole (110) is provided on the first clamping piece (11) at a position corresponding to the heating net (13).

2. The heating structure according to claim 1, characterized in that: The first clamping piece (11) comprises a clamping portion (111) and a first electrode portion (112) and a second electrode portion (113) respectively connected to opposite sides of the clamping portion (111); the heating net (13) is clamped between the clamping portion (111) and the second clamping piece (12); and the smoke outlet (110) is arranged on the clamping portion (111).

3. The heating structure according to claim 2, characterized in that: The clamping portion (111) is an annular structure arranged around the edge of the heating net (13); the second clamping piece (12) is an annular structure arranged around the edge of the heating net (13); the edge of the heating net (13) is clamped between the clamping portion (111) and the second clamping piece (12).

4. The heating structure according to claim 2, characterized in that: The heating structure comprises two heating parts (1) arranged opposite to each other at an interval, the first electrode parts (112) of the two heating parts (1) are connected to each other, and the second electrode parts (113) of the two heating parts (1) are connected to each other or spaced apart from each other.

5. The heating structure according to claim 2, characterized in that: A slot (116) is provided on the first electrode portion (112) and / or the second electrode portion (113), and the slot (116) is used to reduce the width of the first electrode portion (112) and / or the second electrode portion (113).

6. The heating structure according to claim 1, characterized in that: The liquid inlet hole (120) is arranged opposite to the smoke outlet hole (110); the liquid inlet hole (120) and the smoke outlet hole (110) have the same shape and size; and the inner wall of the liquid inlet hole (120) is flush with the inner wall of the smoke outlet hole (110).

7. The heating structure according to claim 1, characterized in that: The area of ​​the liquid inlet hole (120) is 60% to 80% of the area of ​​the heating net (13); and / or the area of ​​the smoke outlet hole (110) is 60% to 80% of the area of ​​the heating net (13).

8. The heating structure according to claim 1, characterized in that: The second clamping piece (12) is provided with a hook claw (14) for engaging with the porous matrix (2), and the hook claw (14) extends and protrudes from the second clamping piece (12) toward a side away from the first clamping piece (11).

9. The heating structure according to any one of claims 1 to 8, characterized in that: The mesh size (131) of the heating net (13) is 50 to 500 meshes, and the thickness of the heating net (13) is 0.08 mm to 0.12 mm.

10. An atomizer core, characterized in that: It comprises a heating structure and a porous matrix (2) as described in any one of claims 1 to 9; the heating net (13) is arranged on the surface of the porous matrix (2), the second clamping plate (12) is embedded in the porous matrix (2), and the first clamping plate (11) is located on the side of the second clamping plate (12) away from the porous matrix (2).

Images