Atomizer coil and atomizer

Abstract

This utility model discloses an atomizing core and an atomizer. The atomizing core includes an inner support, an outer support, an atomizing core body, and a fixing member. The inner support is installed in the inner cavity of the outer support. The circumferential sidewall of the inner support has a liquid guiding hole and a gap, with the gap extending to the end of the first end of the inner support. The atomizing core body is installed in the inner cavity of the inner support, with the atomizing core body and the liquid guiding hole facing each other. The fixing member is installed in the inner cavity of the inner support, with a portion of the fixing member and the gap facing each other. After the fixing member is installed, it compresses the sidewall of the inner support to form an elastic outward expansion space of 0.01mm-2mm, so as to form an elastic interference fit and tight fixation with the inner wall surface of the outer support. This avoids the problem of misalignment caused by the tight fit between the inner and outer supports, improves the product manufacturing yield, and makes the atomizing core more stable during transportation or use, thereby improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of atomization technology, and in particular to an atomizing core and an atomizer. Background Technology

[0002] The atomizer core of the relevant technology includes an inner tube and an outer tube, with the outer tube fitted over the inner tube. The atomizer core body is installed inside the inner tube. Both the outer and inner tubes have liquid guiding holes on their walls. Due to the inherent tolerances of the inner and outer tubes, misalignment is prone to occur during the fitting process. If the fitting is too loose, circumferential and axial misalignment will occur, making it impossible to align the liquid guiding holes, thus affecting the product yield. Furthermore, if misalignment occurs between the inner and outer tubes during transportation or subsequent use, it can affect the use of the atomizer core, potentially leading to less atomized liquid entering the core, causing dry burning or insufficient atomization, severely impacting the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an atomizing core and an atomizer.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: Constructing an atomizing core, including an inner support, an outer support, an atomizing core body, and a fixing member, wherein the inner support is used to install in the inner cavity of the outer support, and the circumferential sidewall of the inner support is provided with a liquid guiding hole and a gap, the gap extending to the end of the first end of the inner support; the atomizing core body is installed in the inner cavity of the inner support and the atomizing core body is arranged opposite to the liquid guiding hole; The fastener is installed in the inner cavity of the inner bracket, and the fastener and the gap are partially opposite to each other. After the fastener is installed, it squeezes the side wall of the inner bracket to form an elastic outward expansion space of 0.01mm-2mm, so as to form an elastic interference fit and fix it in the inner wall of the outer bracket.

[0005] In some embodiments, the atomizing core body includes a liquid guide and a heating element that cooperates with the liquid guide, wherein the liquid guide and the liquid guide hole are disposed opposite to each other; The fixing member has a columnar structure, and several pin slots are provided on the circumferential side of the fixing member. The pin slots cooperate with the inner wall surface of the inner bracket to fix the pins of the heating element.

[0006] In some embodiments, the first end of the inner support is provided with a first fixture positioning groove; the circumferential sidewall of the outer support is provided with a liquid inlet hole, which is connected to the liquid guide hole; and the second end of the outer support is provided with a second fixture positioning groove.

[0007] In some embodiments, the atomizing core has a preset assembly state, and when the atomizing core is in the preset assembly state, the axes of the first fixture positioning groove and the second fixture positioning groove coincide.

[0008] In some embodiments, the second end of the inner support is provided with a third fixture positioning groove, and / or the first end of the outer support is provided with a fourth fixture positioning groove.

[0009] In some embodiments, at least a portion of one end of the slit extends to the end of the first end of the inner support to form the first fixture positioning groove; Alternatively, the gap may be set independently from the positioning groove of the first fixture.

[0010] In some embodiments, the first fixture positioning groove is welded or bonded to the first end of the outer bracket; And / or, the second fixture positioning groove is welded or bonded to the second end of the inner bracket.

[0011] In some embodiments, the outer bracket has at least one first fixing hole on its circumferential sidewall biased towards its first end, and the first fixing hole is welded or bonded to the outer sidewall of the inner bracket.

[0012] In some embodiments, the outer bracket has at least one second fixing hole on its circumferential sidewall biased towards its second end, and the second fixing hole is welded or bonded to the outer sidewall of the inner bracket.

[0013] In some embodiments, the atomizing core body includes a liquid guide and a heating element that cooperates with the liquid guide. The liquid guide is disposed opposite to the liquid guide hole, and the liquid guide squeezes the inner support to the outward abutment against the inner wall surface of the outer support on a portion of the sidewall around the gap.

[0014] In some embodiments, the atomizing core further includes a fixing member, which is installed inside the inner bracket and is disposed opposite to a portion of the structure of the gap. The fixing member presses the portion of the inner bracket's sidewall located around the gap outward to abut against the inner wall surface of the outer bracket.

[0015] This invention also constructs an atomizer, which includes the atomizing core of any of the above embodiments.

[0016] The present invention has the following beneficial effects: The atomizing core includes an inner support, an outer support, an atomizing core body, and a fixing component. The inner support is used to install in the inner cavity of the outer support. The circumferential sidewall of the inner support is provided with a liquid guiding hole and a gap, and the gap extends to the end of the first end of the inner support. The atomizing core body is installed in the inner cavity of the inner support, and the atomizing core body and the liquid guiding hole are arranged opposite to each other. The fixing component is installed in the inner cavity of the inner support, and the fixing component and the gap are partially arranged opposite to each other. After the fixing component is installed, it squeezes the sidewall of the inner support to form an elastic outward expansion space of 0.01mm-2mm, so as to form an elastic interference fit and tight fixation with the inner wall surface of the outer support. This can avoid the problem of misalignment caused by the tight fit between the inner support and the outer support, improve the product manufacturing yield, make the atomizing core more stable during transportation or use, and improve the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the atomizing core in some embodiments of this utility model; Figure 2 This is a schematic diagram of the atomizing core in some embodiments of this utility model; Figure 3 This is a three-dimensional schematic diagram of the atomizing core assembly in some embodiments of this utility model; Figure 4 This is a three-dimensional schematic diagram of the atomizing core assembly in some other embodiments of this utility model; Figure 5 This is an assembly diagram of the atomizing core in some embodiments of this utility model; Figure 6 This is an assembly diagram of the atomizing core in some other embodiments of this utility model; Figure 7 This is a schematic diagram of the structure of the outer support and inner support of the atomizing core assembled together in some other embodiments of this utility model. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0019] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0021] See Figures 1 to 3 This utility model discloses an atomizing core, including an inner support 10, an outer support 20, an atomizing core body 30, and a fixing member 40. The inner support 10 is used to install in the inner cavity of the outer support 20. The circumferential sidewall of the inner support 10 is provided with a liquid guiding hole 11 and a gap 12, and the gap 12 extends to the end of the first end of the inner support 10. The atomizing core body 30 is installed in the inner cavity of the inner support 10 and the atomizing core body 30 is arranged opposite to the liquid guiding hole 11.

[0022] The fastener 40 is installed in the inner cavity of the inner bracket 10, and the fastener 40 and the gap 12 are partially opposite to each other. After the fastener 40 is installed, it squeezes the side wall of the inner bracket 10 to form an elastic outward expansion space of 0.01mm-2mm, so as to form an elastic interference fit and tight fixation with the inner wall surface of the outer bracket 20. This can avoid the problem of misalignment when the inner bracket 10 and the outer bracket 20 are tightly fitted, improve the product manufacturing yield, make the atomizing core more stable during transportation or use, and improve the user experience.

[0023] Specifically, the fastener 40 allows the sidewall of the inner support 10 located around the gap 12 to elastically deform outward, with the elastic deformation ranging from 0.01mm to 2mm, so that the inner support 10 and the outer support 20 are elastically interference-fitted and tightly fixed. Further, the range of elastic deformation is 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, ..., 2mm.

[0024] In some embodiments, when the atomizing core is assembled, the atomizing core body 30 and the fixing member 40 may be installed into the inner bracket 10 first, and then the outer bracket 20 may be fitted onto the outer periphery of the inner bracket 10.

[0025] In some embodiments, the atomizing core body 30 includes a liquid guide 31 and a heating element 32 that cooperates with the liquid guide 31. The liquid guide 31 is disposed opposite to the liquid guide hole 11. The liquid guide 31 may be a generally hollow cylindrical structure, such as a cylindrical structure. The cross-sectional shape of the liquid guide 31 is the same as or similar to the cross-sectional shape of the inner cavity of the inner support 10, or the cross-sectional size of the liquid guide 31 is slightly larger than the cross-sectional size of the inner cavity of the inner support 10. The heating element 32 may include a heating part 321 and at least two pins 322 connected to the heating part 321. The at least two pins 322 include a positive electrode pin and a negative electrode pin. The heating part 321 is attached to or embedded in the inner cavity of the liquid guide 31. The liquid guide 31 includes, but is not limited to, porous ceramic or liquid guide cotton.

[0026] The fixing member 40 has a columnar structure, and its cross-sectional dimension is slightly larger than that of the inner cavity of the inner bracket 10. Furthermore, the fixing member 40 has an air inlet 41 penetrating its upper and lower surfaces. The circumferential side of the fixing member 40 has several pin slots 42. These pin slots 42 cooperate with the inner wall of the inner bracket 10 to fix the pins 322 of the heating element 32. Since the pins 322 are partially located within the pin slots 42, and some protrude from the pin slots 42 to abut against the inner sidewall of the inner bracket 10, the pins 322 also allow the sidewall of the inner bracket 10 located around the gap 12 to elastically deform outwards. The range of elastic deformation is 0.01mm-2mm, so that the inner bracket 10 and the outer bracket 20 form an elastic interference fit for tight fixation.

[0027] In some embodiments, the inner support 10 has a first fixture positioning groove 13 at its first end. The outer support 20 has a liquid inlet hole 21 on its circumferential sidewall, which communicates with the liquid guide hole 11. The outer support 20 has a second fixture positioning groove 22 at its second end. The liquid guide hole 11 can be a circular hole, a square hole, a rhombus hole, or other shaped hole, and is not specifically limited here. The liquid inlet hole 21 can be a circular hole, a square hole, a rhombus hole, or other shaped hole, and is not specifically limited here.

[0028] The outer support 20 is fitted around the outer periphery of the inner support 10, and the liquid inlet 21 is connected to the liquid guide hole 11. The circumferential sidewall of the outer support 20 covers part of the structure of the gap 12. In some embodiments, the atomizing core body 30 may be disposed opposite to at least part of the structure of the gap 12, and the atomizing core body 30 presses the portion of the sidewall of the inner support 10 located around the gap 12 outward to abut against the inner wall surface of the outer support 20.

[0029] like Figure 5 Or such as Figure 6 As shown, the atomizing core is assembled as follows: First, the atomizing core body 30 is installed in the inner bracket 10. Then, the first fixture positioning groove 13 can be connected to the first fixture (not shown), and the second fixture positioning groove 22 can be connected to the first fixture (not shown). When the first fixture positioning groove 13 and the second fixture positioning groove 22 are in a predetermined position, such as when their axes coincide, the inner bracket 10 and the outer bracket 20 are assembled in place. In addition, the liquid inlet 21 of the outer bracket 20 is connected to the liquid guide hole 11. The circumferential sidewall of the outer bracket 20 covers part of the structure of the gap 12. Then, the fixing member 40 is installed into the inner bracket 10. The fixing member 40 presses the part of the sidewall of the inner bracket 10 located around the gap 12 outward to abut against the inner wall surface of the outer bracket 20, so that the inner bracket 10 and the outer bracket 20 are interference fit, and the assembly of the two is more stable and there will be no relative displacement.

[0030] Of course, it is also possible that after the inner bracket 10 and the outer bracket 20 are assembled in place, the atomizing core body 30 and the fixing component 40 are then assembled into the inner bracket 10.

[0031] When the atomizing core is assembled manually, the workers can determine the assembly position of the inner bracket 10 and the outer bracket 20 by the position of the first fixture positioning groove 13 and the second fixture positioning groove 22, which can improve the assembly accuracy and thus improve production efficiency.

[0032] Understandably, the inner support 10 is provided with a first fixture positioning groove 13, and the outer support 20 is provided with a second fixture positioning groove 22. The fixture positioning grooves can cooperate with the fixture to achieve precise alignment and assembly. Of course, other assembly methods can also be used, which can improve the assembly accuracy of the atomizing core and thus improve production efficiency. In addition, even if the fixture is not used for alignment and assembly, the first fixture positioning groove 13 and the second fixture positioning groove 22 can still play a positioning role. Furthermore, the fixing member 40 can make the inner support 10 and the outer support 20 form an interference fit, which can prevent misalignment between the inner support 10 and the outer support 20, improve the product manufacturing yield, and improve the consistency of product performance.

[0033] In some embodiments, the atomizing core has a preset assembly state. When the atomizing core is in the preset assembly state, the axes of the first fixture positioning groove 13 and the second fixture positioning groove 22 coincide. The preset assembly state is the completion of the atomizing core assembly, that is, when the atomizing core is assembled in place, the axes of the first fixture positioning groove 13 and the second fixture positioning groove 22 coincide.

[0034] In some embodiments, both the first fixture positioning groove 13 and the second fixture positioning groove 22 can be elongated grooves. The first fixture positioning groove 13 extends along the axial direction of the inner support 10, and the second fixture positioning groove 22 extends along the axial direction of the outer support 20.

[0035] In some embodiments, the number of first fixture positioning slots 13 can be multiple, such as two or more, like three, four or five, and the multiple first fixture positioning slots 13 can be equidistantly distributed. Similarly, the number of second fixture positioning slots 22 can be multiple, such as two or more, like three, four or five, and the multiple second fixture positioning slots 22 can be equidistantly distributed.

[0036] In some embodiments, the first fixture positioning groove 13 is disposed opposite to the liquid guiding hole 11, and the axis of the first fixture positioning groove 13 may pass through the midpoint of the liquid guiding hole 11. Similarly, the second fixture positioning groove 22 is disposed opposite to the liquid inlet hole 21, and the axis of the second fixture positioning groove 22 disposed opposite to the liquid inlet hole 21 may pass through the midpoint of the liquid inlet hole 21.

[0037] like Figure 4 As shown, in some embodiments, the second end of the inner support 10 is provided with a third fixture positioning groove 14, and / or the first end of the outer support 20 is provided with a fourth fixture positioning groove (not shown). The third fixture positioning groove 14 can be connected to a third fixture, and the fourth fixture positioning groove can be connected to a fourth fixture. Wherein, when the atomizing core is in the preset assembly state, the third fixture positioning groove 14 may be opposite to and communicate with the second fixture positioning groove 22. Alternatively, when the atomizing core is in the preset assembly state, the fourth fixture positioning groove may be opposite to and communicate with the first fixture positioning groove 13.

[0038] In some embodiments, both the third fixture positioning groove 14 and the fourth fixture positioning groove can be elongated grooves. The third fixture positioning groove 14 extends along the axial direction of the inner support 10, and the fourth fixture positioning groove extends along the axial direction of the outer support 20.

[0039] In some embodiments, the number of third fixture positioning slots 14 can be multiple, such as two or more, like three, four or five, and the multiple third fixture positioning slots 14 can be equidistantly distributed. Similarly, the number of fourth fixture positioning slots can be multiple, such as two or more, like three, four or five, and the multiple fourth fixture positioning slots can be equidistantly distributed.

[0040] When assembling the atomizing core, the position of the aforementioned fixture positioning slot can be monitored by an industrial camera, enabling automated production.

[0041] like Figure 1 and Figure 2 As shown, in some embodiments, at least one end of the slit 12 extends to the end of the first end of the inner support 10 to form the first fixture positioning groove 13. The slit 12 may be elongated and may extend along the axial direction of the inner support 10. At least one end of the slit 12 may be connected to at least one liquid guide hole 11.

[0042] Alternatively, the gap 12 can be independently provided from the positioning groove 13 of the first fixture. For example... Figure 4 As shown, the gap 12 includes a main body that is arc-shaped, C-shaped or U-shaped, and the gap 12 also includes an elongated part that is connected to the middle of the main body and extends along the axial direction of the inner support 10.

[0043] The fastener 40 presses against a portion of the sidewall of the inner support 10 located around the gap 12 (e.g., Figure 4The A portion of the sidewalls surrounding the gap 12 abuts against the inner wall of the outer bracket 20, resulting in an interference fit between the inner bracket 10 and the outer bracket 20. This makes the assembly more stable and prevents relative displacement.

[0044] In some embodiments, the first fixture positioning groove 13 is welded or bonded to the first end of the outer bracket 20. Welding can be performed using laser welding, and bonding can be done using adhesive. These methods improve the assembly stability of the inner bracket 10 and the outer bracket 20, preventing loosening or misalignment during subsequent processes and transportation, ensuring product consistency, and eliminating defective products. And / or, the second fixture positioning groove 22 is welded or bonded to the second end of the inner bracket 10. Welding can be performed using laser welding, and bonding can be done using adhesive. These methods also improve the assembly stability of the inner bracket 10 and the outer bracket 20, preventing loosening or misalignment during subsequent processes and transportation, ensuring product consistency, and eliminating defective products.

[0045] like Figure 7 As shown, in some embodiments, the outer bracket 20 has at least one first fixing hole 23 on its circumferential sidewall biased towards its first end. The first fixing hole 23 is welded or bonded to the outer sidewall of the inner bracket 10. Welding can be done using laser welding, and bonding can be done using adhesive. These fixing methods improve the assembly stability of the inner bracket 10 and the outer bracket 20, preventing loosening or misalignment during subsequent processes and transportation, ensuring product consistency, and eliminating defective products. The number of first fixing holes 23 can be one or more, and the shape of the first fixing holes 23 can be circular or square. The number and shape of the first fixing holes 23 can be selected according to actual needs and are not specifically limited here.

[0046] like Figure 7 As shown, in some embodiments, the outer bracket 20 has at least one second fixing hole 24 on its circumferential sidewall biased towards its second end. The second fixing hole 24 is welded or bonded to the outer sidewall of the inner bracket 10. Welding can be done using laser welding, and bonding can be done using adhesive. These fixing methods improve the assembly stability of the inner bracket 10 and the outer bracket 20, preventing loosening or misalignment during subsequent processes and transportation, ensuring product consistency, and eliminating defective products. The number of second fixing holes 24 can be one or more, and the shape of the second fixing holes 24 can be circular or square. The number and shape of the first fixing holes 23 can be selected according to actual needs and are not specifically limited here.

[0047] In some embodiments, the inner support 10 may be a generally circular tubular structure. Of course, the cross-sectional shape of the inner support 10 may also be square or elliptical, without specific limitations. The inner support 10 may be made of metal materials, such as stainless steel or aluminum alloy. Of course, the inner support 10 may also be made of composite materials, without specific limitations.

[0048] In some embodiments, the wall thickness of the inner support 10 is 0.1mm-1mm. For example, the wall thickness of the inner support 10 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm. The wall thickness of the inner support 10 can be selected and set according to actual needs, and no specific limitation is made here.

[0049] In some embodiments, the outer support 20 may be a generally circular tubular structure. Of course, the cross-sectional shape of the outer support 20 may also be square or elliptical, without specific limitation. The outer support 20 may be made of metal materials, such as stainless steel or aluminum alloy. Of course, the outer support 20 may also be made of composite materials, without specific limitation.

[0050] In some embodiments, the wall thickness of the outer bracket 20 is 0.1mm-1mm. For example, the wall thickness of the outer bracket 20 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm. The wall thickness of the outer bracket 20 can be selected and set according to actual needs, and no specific limitation is made here.

[0051] In some embodiments, the width of the gap 12 is 0.1mm-1mm. The width of the gap 12 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm. The width of the gap 12 can be selected and set according to actual needs, and no specific limitation is made here.

[0052] In some embodiments, the uppermost end of the gap 12 is located between the uppermost and lowermost ends of the liquid guiding hole 11. When the liquid guiding 31 completely blocks the liquid guiding hole 11, it can also block part of the structure of the gap 12. When there are multiple liquid guiding holes 11, the multiple liquid guiding holes 11 can be spaced apart along the axial and / or circumferential direction of the inner support 10. In this case, the uppermost end of the gap 12 is located between the uppermost and lowermost ends of a portion of the liquid guiding holes 11. For example, the uppermost end of the gap 12 is located between the uppermost and lowermost ends of a portion of the liquid guiding holes 11 near the first end of the inner support 10. The gap 12 can also play a role in balancing ventilation.

[0053] In this application, the "first end" shown may be the lower end of the component, and the "second end" may be the upper end of the component. Alternatively, the "first end" shown may be the upper end of the component, and the "second end" may be the lower end of the component.

[0054] This utility model also discloses an atomizer, which includes the atomizing core of any of the above embodiments. The atomizer can be used in an aerosol generating device, which includes, but is not limited to, electronic cigarettes or atomizing beauty devices. When the aerosol generating device is an electronic cigarette, the atomizer can be a cartridge for the electronic cigarette.

[0055] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. An atomizing core, characterized in that, The device includes an inner support (10), an outer support (20), an atomizing core body (30), and a fixing member (40). The inner support (10) is installed in the inner cavity of the outer support (20). The circumferential sidewall of the inner support (10) is provided with a liquid guiding hole (11) and a gap (12). The gap (12) extends to the end of the first end of the inner support (10). The atomizing core body (30) is installed in the inner cavity of the inner support (10) and the atomizing core body (30) is arranged opposite to the liquid guiding hole (11). The fastener (40) is installed in the inner cavity of the inner bracket (10), and the fastener (40) is partially arranged opposite to the gap (12). After the fastener (40) is installed, it squeezes the side wall of the inner bracket (10) to form an elastic outward expansion space of 0.01mm-2mm, so as to form an elastic interference fit and fixation with the inner wall surface of the outer bracket (20) in the outer bracket (20).

2. The atomizer core of claim 1, wherein, The atomizing core body (30) includes a liquid guide (31) and a heating element (32) that cooperates with the liquid guide (31). The liquid guide (31) is disposed opposite to the liquid guide hole (11). The fixing member (40) has a columnar structure. The circumferential side of the fixing member (40) is provided with a plurality of pin slots (42). The pin slots (42) cooperate with the inner wall surface of the inner bracket (10) to fix the pins (322) of the heating element (32).

3. The atomizer core of claim 1, wherein, The inner support (10) has a first fixture positioning groove (13) at its first end; the outer support (20) has a liquid inlet hole (21) on its circumferential sidewall, which is connected to the liquid guide hole (11); and the outer support (20) has a second fixture positioning groove (22) at its second end.

4. The atomizer core of claim 3, wherein, The atomizing core has a preset assembly state. When the atomizing core is in the preset assembly state, the axes of the first fixture positioning groove (13) and the second fixture positioning groove (22) coincide.

5. The atomizing core according to claim 3, characterized in that, The second end of the inner support (10) is provided with a third fixture positioning groove (14), and / or the first end of the outer support (20) is provided with a fourth fixture positioning groove.

6. The atomizer core of claim 3, wherein, At least one end of the slit (12) extends to the end of the first end of the inner support (10) to form the first fixture positioning groove (13). Alternatively, the gap (12) may be set independently from the first fixture positioning groove (13).

7. The atomizer core of claim 3, wherein, The first fixture positioning groove (13) is welded or bonded to the first end of the outer bracket (20); And / or, the second fixture positioning groove (22) is welded or bonded to the second end of the inner bracket (10).

8. The atomizer core of claim 1, wherein, The outer support (20) has at least one first fixing hole (23) on its circumferential sidewall biased towards its first end. The first fixing hole (23) is welded or bonded to the outer sidewall of the inner support (10).

9. The atomizing core according to claim 1, characterized in that, The outer support (20) has at least one second fixing hole (24) on its circumferential sidewall biased towards its second end. The second fixing hole (24) is welded or bonded to the outer sidewall of the inner support (10).

10. An atomizer characterized by, Includes the atomizing core as described in any one of claims 1 to 9.

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