Durable atomization device and electronic cigarette

Abstract

The utility model relates to the technical field of atomization devices, in particular to a durable atomization device and an electronic cigarette. The durable atomization device comprises a shell and an atomization core installed in the shell, an oil storage cavity used for storing an atomization matrix is formed between the periphery of the atomization core and the inner wall of the shell, oil storage cotton is arranged in the oil storage cavity, the atomization core comprises a limiting pipe, heat insulation oil guide cotton and a porous hard oil guide block, and a heating element is arranged on the porous hard oil guide block. At least one layer of heat insulation oil guide cotton is arranged on the inner wall of the limiting pipe, the heat insulation oil guide cotton is located between the inner wall of the limiting pipe and the porous hard oil guide block, and an oil through hole is formed in the position, corresponding to the porous hard oil guide block, of the limiting pipe. The electronic cigarette has the advantages that tobacco tar is stored in the tar storage cotton, the tar supply speed is smoother, the risk of tar leakage is small, meanwhile, the thermal insulation tar guide cotton is arranged, the tar guide and thermal insulation effects can be achieved at the same time, the tar storage cotton is prevented from being deformed due to high temperature, the service life of the electronic cigarette is prolonged, and the electronic cigarette is more durable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization devices, in particular to a durable atomization device and electronic cigarette. BACKGROUND

[0002] An electronic cigarette (also known as an "e-cigarette") or a smoking device is an electronic delivery system for generating aerosol for a user to inhale, from an atomized substrate. The atomized substrate can be a liquid (e.g., e-liquid, etc.) directly stored in a containing cavity, or stored in an internal space of the electronic cigarette through a storage cotton.

[0003] Generally, a conventional electronic cigarette mainly includes a cartridge storing an atomized substrate and a power supply device, the cartridge has a heating or evaporation device, such as an atomizer including an atomizing core, a user's inhalation activates the atomizing core, and the power supply device supplies power to the atomizing core to convert the atomized substrate in the cartridge into aerosol for the user to inhale.

[0004] In use, the existing electronic cigarette atomization device, the atomizing core emits a large amount of heat, when using storage cotton as a medium for storing the atomized substrate, the heat emitted by the atomizing core will deform the storage cotton, affecting its service life, and there is room for improvement. SUMMARY

[0005] In order to overcome the technical defects of the prior art that the heat of the atomizing core affects the service life of the storage cotton, the present application provides a durable atomization device, which comprises a shell and an atomizing core installed in the shell, a storage oil cavity for storing an atomized substrate is formed between the outer periphery of the atomizing core and the inner wall of the shell, a storage cotton is arranged in the storage oil cavity, the atomizing core comprises a limiting tube, a heat insulation oil guiding cotton and a porous hard oil guiding block, a heating element is arranged on the porous hard oil guiding block, at least one layer of heat insulation oil guiding cotton is arranged on the inner wall of the limiting tube, and the heat insulation oil guiding cotton is located between the inner wall of the limiting tube and the porous hard oil guiding block, and an oil passage hole is formed in the corresponding position of the limiting tube and the porous hard oil guiding block.

[0006] As one of the embodiments, the heat insulation temperature of the heat insulation oil guiding cotton is greater than 200℃.

[0007] As one of the embodiments, the heat insulation oil guiding cotton is made of polytetrafluoroethylene fiber, polyimide fiber, high-temperature-resistant cotton fiber, asbestos fiber, glass fiber, metal fiber, nitrogen boron fiber or ceramic fiber.

[0008] As one of the embodiments, one side wall of the porous hard oil guiding block abuts against the heat insulation oil guiding cotton, an atomization cavity is formed between the other side wall of the porous hard oil guiding block and the side of the heat insulation oil guiding cotton away from the limiting tube, and the heating element is arranged on the side of the porous hard oil guiding block facing the atomization cavity.

[0009] As one of the embodiments, the atomizing core further comprises a fixing seat for fixing the porous hard oil guide block, and the fixing seat comprises a support, and the porous hard oil guide block is mounted on the support.

[0010] As one of the embodiments, the fixing seat further comprises an abutting portion, one end of the abutting portion is connected to the support, one side of the abutting portion faces the inner wall of the limiting tube, the other side of the abutting portion faces the porous hard oil guide block, the atomizing cavity is formed between the abutting portion and the porous hard oil guide block, and the support is provided with a through hole at a position corresponding to the atomizing cavity.

[0011] As one of the embodiments, the abutting portion is provided with a concave portion on the side facing the porous hard oil guide block, and the porous hard oil guide block abuts on the abutting portion and forms the atomizing cavity together with the abutting portion in the concave portion.

[0012] As one of the embodiments, one side of the porous hard oil guide block is flat, the other side is matched with the inner wall of the limiting tube, the heating element is arranged on the flat side of the porous hard oil guide block, and the flat side of the porous hard oil guide block abuts on the abutting portion.

[0013] As one of the embodiments, the shell is a hollow tubular structure with at least one open end, one end of the shell is provided with a mouthpiece, the other end of the shell is provided with a base at the opening, the mouthpiece has a smoking port, the base is provided with a first air hole, one end of the atomizing core is communicated with the mouthpiece through a smoke guide pipe, and the other end of the atomizing core is communicated with the first air hole.

[0014] As one of the embodiments, the upper oil absorbing cotton is arranged between the limiting tube and the mouthpiece, the upper oil absorbing cotton is provided with a first air hole at a position corresponding to the smoke guide pipe and the smoking port; the base is provided with lower oil absorbing cotton, and the lower oil absorbing cotton is provided with a second air hole at a position corresponding to the atomizing cavity and the first air hole.

[0015] As one of the embodiments, the housing is provided with a first sealing member for sealing the oil storage cavity at one end of the mouthpiece, and is provided with a second sealing member for sealing the oil storage cavity at the other end of the housing. The first sealing member is provided with a first through hole corresponding to the smoke guide pipe and the smoke suction port. One end of the limiting pipe is inserted into the first through hole, and the other end of the limiting pipe is fixed relative to the second sealing member. The first sealing member is further provided with a first space for accommodating the upper oil absorbing cotton, and the upper oil absorbing cotton is installed in the first space.

[0016] As one of the embodiments, the housing comprises a first pipe body and a second pipe body connected to each other. The mouthpiece is connected to one end of the first pipe body away from the second pipe body. The base is connected to one end of the second pipe body away from the first pipe body. The second pipe body is a reduced-diameter pipe of the first pipe body. The first pipe body has a limiting flange protruding relative to the second pipe body. The first gas hole is provided with a sealing plug, and the sealing plug is arranged outside the base. The lower oil absorbing cotton is located between the base and the sealing plug.

[0017] As one of the embodiments, a sealing adapter is arranged between the limiting pipe and the smoke guide pipe.

[0018] As one of the embodiments, the porous hard oil guide block is made of glass, ceramic, mica or quartz provided with micropores.

[0019] Another aspect of the present application provides an electronic cigarette, which comprises a durable atomization device and a power supply assembly for supplying power to the durable atomization device.

[0020] In summary, the beneficial effects of the present application are as follows: 1. The tobacco tar is stored in the oil storage cotton, and the oil supply speed is more gentle, and the risk of oil leakage is small. At the same time, the heat insulation oil guide cotton is arranged, which can simultaneously play the roles of oil guiding and heat insulation, prevent the oil storage cotton from being deformed by high temperature, prolong the service life of the electronic cigarette, and make it more durable; 2. The atomization core is in a vertical structure, and the heating element is arranged in the direction extending along the atomization channel of the porous hard oil guide block. The heating is sufficient, and the amount of smoke is larger. At the same time, the atomization core structure is simple, so the size can be smaller, which can be applied to small products such as simulation cigarettes; 3. The porous structure of the porous hard oil guide block has good oil absorption effect, and the oil supply is smooth; 4. The upper oil absorbing cotton is arranged to prevent the influence of condensed tobacco tar on taste, and the lower oil absorbing cotton is arranged to prevent the pollution of the power supply device caused by tobacco tar leakage; and the sealing plug is arranged to reduce the waste of tobacco tar volatilization during long-distance transportation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1A structural schematic diagram of an electronic cigarette in the present application.

[0022] Figure 2 An exploded view of a durable atomization device in the present application.

[0023] Figure 3 A sectional view of a durable atomization device in the present application.

[0024] Figure 4 A sectional view of an atomization core in the present application.

[0025] Figure 5 A structural schematic diagram of a shell of a durable atomization device in the present application.

[0026] Figure 6 A structural schematic diagram of a fixing seat of a durable atomization device in the present application.

[0027] Figure 7 A structural schematic diagram of an atomization core of a durable atomization device in the present application (limiting tube is not shown).

[0028] Explanation of reference signs:

[0029] 100, durable atomization device;

[0030] 10, shell; 11, first tube body; 12, limiting flange; 13, second tube body; 14, mouthpiece; 15, smoking port; 16, base; 161, first air hole; 17, sealing plug; 18, oil storage cavity; 19, oil storage cotton;

[0031] 20, atomization core; 21, limiting tube; 211, oil passage hole; 22, atomization cavity; 23, sealing adapter; 24, smoke guide tube;

[0032] 30, porous hard oil guide block; 31, heating element;

[0033] 40, fixing seat; 41, support; 42, abutting portion; 43, recess; 44, through hole;

[0034] 50, heat insulation oil guide cotton;

[0035] 61, upper oil absorption cotton; 62, lower oil absorption cotton;

[0036] 71, first sealing element; 72, second sealing element;

[0037] 200, power supply assembly. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present disclosure.

[0039] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present disclosure are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0040] In the present disclosure, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, can be directly connected, or indirectly connected through an intermediate medium, can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0041] In this document, "communication" means fluid communication, that is, fluid (including liquid and / or gas) can flow from one component to another. In addition, in this document, communication between two components can mean direct communication between two components, for example, two holes are at least partially aligned, or communication through an intermediate medium.

[0042] In the present disclosure, unless otherwise specified, all numbers representing component parameters, technical effects, etc. used in the specification and claims should be understood in any case as being modified by the term "about" or "approximately". Therefore, unless there is an opposite indication, the numerical parameters listed in the following specification and the appended claims are approximate values. For those skilled in the art, it can vary according to the desired properties and effects obtained by the present disclosure, and each numerical value parameter should be interpreted according to the number of significant digits and the conventional rounding method or the way understood by those skilled in the art.

[0043] In the present disclosure, the terms used in the description of various described examples are only for the purpose of describing the specific examples, and are not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the element can be one or more. In addition, the term "and / or" used in the present disclosure covers any one of the listed items and all possible combinations.

[0044] An "atomized substrate" refers to a mixture or auxiliary substance that can be wholly or partially atomized into an aerosol by an electronic device or similar device. The atomized substrate can be a liquid or oil-like e-liquid, a medical drug, a skin care lotion, or other medium. By atomizing these media, an aerosol that can be inhaled or absorbed can be delivered to a user.

[0045] An "aerosol" refers to a colloidal dispersion system formed by dispersing and suspending small particles of solids or liquids in a gaseous medium.

[0046] An "atomizer" refers to a device that forms an aerosol from a stored atomizable substrate, i.e., an atomized substrate, by heating or ultrasonic means. An atomizer core is one of the main components of an atomizer.

[0047] An "e-cigarette" refers to a system that generates an aerosol (i.e., a mist) from an atomized substrate, such as e-liquid, by atomization or the like for human inhalation, suction, chewing, or nasal inhalation or the like. In some examples, an e-cigarette can include a storage cavity for storing e-liquid and an atomizer core for adsorbing and atomizing the e-liquid to form a mist.

[0048] In the related art of e-cigarettes, the atomizer core includes a heating element and an oil guide, the heating element is used for heating the e-liquid to form a mist, and the oil guide is used to guide the e-liquid in the oil storage to the heating element. The heating element can be made of an electrically conductive metal, such as graphite, graphene, carbon nanotubes containing carbon, etc., and can be in the shape of a wire, a sheet, a mesh, or a printed track, etc. The oil guide can be made of cotton, fiber material, porous ceramic, porous quartz, or porous glass, etc., such as a strip of cotton or fiber, or a sheet, a semi-cylindrical, or a hollow cylindrical shape of porous ceramic, porous quartz, or porous glass, etc. The heating element is wrapped by the oil guide, or the heating element is wrapped outside the oil guide, or the heating element is embedded on the oil guide or printed on the oil guide.

[0049] The present application will be further described below with reference to the accompanying drawings:

[0050] Referring to Figures 1-7 The present application provides an e-cigarette, which includes a durable atomization device 100 and a power supply assembly 200 for powering the durable atomization device 100.

[0051] In some embodiments, the durable atomization device 100 includes a housing 10, an atomizer core 20, a porous hard oil guide block 30, a heating element 31, a fixing seat 40, a heat-insulating oil guide cotton 50, an upper oil absorbing cotton 61, a lower oil absorbing cotton 62, a first sealing member 71, a second sealing member 72, and a sealing plug 17.

[0052] Referring to Figure 3In some embodiments, the atomization core 20 is installed in the shell 10, and an oil storage cavity 18 for storing the atomization substrate is formed between the outer periphery of the atomization core 20 and the inner wall of the shell 10. The oil storage cavity 18 is provided with an oil storage cotton 19 for storing the atomization substrate, as shown in Figure 4 and Figure 7 The atomization core 20 includes a limiting tube 21, a heat-insulating oil guide cotton 50, and a porous hard oil guide block 30 provided with a heating element 31. The inner wall of the limiting tube 21 is provided with at least one layer of heat-insulating oil guide cotton 50, which is located between the inner wall of the limiting tube 21 and the porous hard oil guide block 30. The limiting tube 21 is provided with an oil passage hole 211 at a position corresponding to the porous hard oil guide block 30. The atomization substrate stored on the oil storage cotton 19 is transmitted to the heat-insulating oil guide cotton 50 through the oil passage hole 211 and then to the porous hard oil guide block 30, which is heated and atomized by the heating element 31 on the porous hard oil guide block 30 to generate aerosol, which is inhaled by the user. The heat-insulating oil guide cotton 50 not only slows down the oil supply speed of the oil storage cotton 19 and prevents oil leakage, but also has a heat-insulating effect, preventing the oil storage cotton 19 from being deformed due to high temperature of the atomization core 20, prolonging the service life of the oil storage cotton 19, and thus improving the durability of the atomization device.

[0053] In some embodiments, the heat-insulating oil guide cotton 50 is made of high-temperature-resistant cotton fiber with a heat-insulating temperature of 250°C. In other embodiments, the heat-insulating oil guide cotton 50 can be made of polytetrafluoroethylene fiber, polyimide fiber, high-temperature-resistant cotton fiber, asbestos fiber, glass fiber, metal fiber, nitrogen fiber, boron fiber, or ceramic fiber with a heat-insulating temperature greater than 200°C.

[0054] Referring to Figure 7 In some embodiments, one side wall of the porous hard oil guide block 30 abuts against the heat-insulating oil guide cotton 50, and the other side wall of the porous hard oil guide block 30 is away from the side of the heat-insulating oil guide cotton 50 facing away from the limiting tube 21, forming an atomization cavity 22 therebetween. The heating element 31 is provided on the side of the porous hard oil guide block 30 facing the atomization cavity 22. The atomization substrate is transmitted to the porous hard oil guide block 30 through the heat-insulating oil guide cotton 50 and then heated and atomized by the heating element 31 fixed on the porous hard oil guide block 30. The heating element 31 is a heating wire attached to the porous hard oil guide block 30 by electroplating, etching, or other means.

[0055] In some embodiments, referring to Figure 6The atomizing core 20 further comprises a fixing seat 40 for fixing the porous hard oil guide block 30, the fixing seat 40 comprises a support 41, the porous hard oil guide block 30 is installed on the support 41, the fixing seat 40 further comprises an abutting portion 42, one end of the abutting portion 42 is connected to the support 41, one side of the abutting portion 42 faces the inner wall of the limiting tube 21, the other side of the abutting portion 42 faces the porous hard oil guide block 30, and the atomizing cavity 22 is formed between the abutting portion 42 and the porous hard oil guide block 30, and the support 41 is provided with a through hole 44 at a position corresponding to the atomizing cavity 22; the support 41 is used for supporting the porous hard oil guide block 30, and the abutting portion 42 and the limiting tube 21 jointly limit the radial movement of the porous hard oil guide block 30 along the atomizing tube, thereby ensuring the stability of the structure of the atomizing core 20.

[0056] In some embodiments, one side of the abutting portion 42 facing the porous hard oil guide block 30 is provided with a concave recess 43, and the two sides of the porous hard oil guide block 30 abut on the abutting portion 42 and are enclosed with the abutting portion 42 to form the atomizing cavity 22 in the recess 43.

[0057] In some embodiments, one side of the porous hard oil guide block 30 is planar, the other side is matched with the inner wall of the limiting tube 21, the heating element 31 is arranged on the side of the porous hard oil guide block 30 in the form of a plane, the heating element 31 is arranged in the direction of extension of the atomizing cavity 22, and the side of the porous hard oil guide block 30 in the form of a plane abuts on the abutting portion 42; at this time, the space formed between the recess 43 of the abutting portion 42 and the side of the porous hard oil guide block 30 in the form of a plane is the atomizing cavity 22.

[0058] In some embodiments, the shell 10 is a hollow tubular structure with at least one open end, one end of the shell 10 is provided with a mouthpiece 14, the other end of the shell 10 is provided with a base 16 at the opening, the mouthpiece 14 has a smoking port 15, the base 16 is provided with a first air hole 161, one end of the atomizing core 20 is communicated with the mouthpiece 14 through a smoke guide pipe 24, and the other end of the atomizing core 20 is communicated with the first air hole 161; external air enters the atomizing core 20 through the first air hole 161 on the base 16, the atomizing core 20 heats and atomizes the tobacco tar into aerosol, the aerosol mixed with external air passes through the smoke guide pipe 24, and is finally discharged from the mouthpiece 14 for a user to smoke.

[0059] In some embodiments, an upper oil-absorbing cotton 61 is provided between the limiting tube 21 and the mouthpiece 14. The upper oil-absorbing cotton 61 has a first vent hole corresponding to the position where it connects with the smoke guide tube 24 and the smoking port 15. The base 16 is provided with a lower oil-absorbing cotton 62. The lower oil-absorbing cotton 62 has a second vent hole corresponding to the position where it connects with the atomizing chamber 22 and the first vent 161. The upper oil-absorbing cotton 61 can absorb the e-liquid at the mouthpiece 14 to prevent condensed e-liquid from affecting the taste. The lower oil-absorbing cotton 62 can absorb the e-liquid that leaks from the atomizing core 20 due to failure to atomize in time, preventing e-liquid leakage from contaminating the power supply component 200.

[0060] See Figure 3 In some embodiments, the housing 10 has a first sealing member 71 for sealing the oil storage cavity 18 at one end facing the mouthpiece 14, and a second sealing member 72 for sealing the oil storage cavity 18 at the other end of the housing 10. The first sealing member 71 has a first through hole corresponding to the smoke guide tube 24 and the smoking port 15. One end of the limiting tube 21 is inserted into the first through hole, and the other end of the limiting tube 21 is fixed relative to the second sealing member 72. The first sealing member 71 also has a first space for accommodating the upper oil-absorbing cotton 61, and the upper oil-absorbing cotton is installed in the first space. The base 16 is installed on the side of the second sealing member 72 away from the oil storage cavity 18. The side of the base 16 away from the second sealing member 72 has a second space for accommodating the lower oil-absorbing cotton 62, and the lower oil-absorbing cotton 62 is installed in the second space.

[0061] In some embodiments, the housing 10 includes a first tube 11 and a second tube 13 connected to each other. The mouthpiece 14 is connected to the end of the first tube 11 away from the second tube 13, and the base 16 is connected to the end of the second tube 13 away from the first tube 11. The second tube 13 is formed by reducing the diameter of the first tube 11. The first tube 11 has a limiting flange 12 protruding relative to the second tube 13. A sealing plug 17 is provided at the first air hole 161, and the sealing plug 17 covers the outside of the base 16. The lower oil-absorbing cotton 62 is located between the base 16 and the sealing plug 17. When the durable atomizing device 100 and the battery assembly are assembled together, the limiting flange 12 abuts against the end of the battery assembly, playing a limiting role. When the durable atomizing device 100 is transported separately, the smoke inlet 15 is sealed. At the same time, the sealing plug 17 is provided at the first air hole 161 to ensure the airtightness of the oil storage chamber 18 and reduce the evaporation and waste of e-liquid.

[0062] See Figure 2 and Figure 4In some embodiments, a sealing adapter 23 is arranged between the limiting pipe 21 and the smoke guide pipe 24, which functions as a conversion connection.

[0063] In some embodiments, the porous hard oil guide block 30 is made of glass, ceramic, mica or quartz provided with micropores.

[0064] The above is only an embodiment or example of the present disclosure, and does not limit the patent scope of the present disclosure, and any equivalent structural transformation made by the disclosure specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present disclosure. Various elements in the embodiment or example can be omitted or replaced by equivalent elements. In addition, each step can be performed in an order different from that described in the present disclosure. Further, various elements in the embodiment or example can be combined in various ways. It is important that many elements described herein can be replaced by equivalent elements that appear after the present disclosure as technology evolves.

Claims

1. A ruggedized atomization device, comprising: The application relates to an atomizing core and a shell, wherein the atomizing core is arranged in the shell, and an oil storage cavity for storing an atomizing base is formed between the periphery of the atomizing core and the inner wall of the shell; the atomizing core comprises a limiting tube, heat insulation oil guiding cotton and a porous hard oil guiding block; a heating element is arranged on the porous hard oil guiding block; at least one layer of heat insulation oil guiding cotton is arranged on the inner wall of the limiting tube, and the heat insulation oil guiding cotton is arranged between the inner wall of the limiting tube and the porous hard oil guiding block; and an oil passing hole is arranged on the corresponding position of the limiting tube and the porous hard oil guiding block.

2. The ruggedized atomization device of claim 1, wherein, The heat insulation temperature of the heat insulation oil guiding cotton is greater than 200 DEG C.

3. The ruggedized atomizer of claim 1, wherein, The heat insulation oil guiding cotton is made of polytetrafluoroethylene fiber, polyimide fiber, high-temperature-resistant cotton fiber, asbestos fiber, glass fiber, metal fiber, nitrogen boron fiber or ceramic fiber.

4. The ruggedized atomizer of claim 1, wherein, One side wall of the porous hard oil guiding block is in abutment with the heat insulation oil guiding cotton, an atomizing cavity is formed between the other side wall of the porous hard oil guiding block and the side of the heat insulation oil guiding cotton which is away from the limiting tube, and the heating element is arranged on the side of the porous hard oil guiding block which faces the atomizing cavity.

5. The ruggedized atomizer of claim 4, wherein, The atomizing core further comprises a fixing seat for fixing the porous hard oil guiding block, and the fixing seat comprises a support, and the porous hard oil guiding block is arranged on the support.

6. The ruggedized atomizer of claim 5, wherein, The fixing seat further comprises an abutment part, one end of the abutment part is connected to the support, one side of the abutment part faces the inner wall of the limiting tube, the other side of the abutment part faces the porous hard oil guiding block, the atomizing cavity is formed between the abutment part and the porous hard oil guiding block, and a through hole is arranged on the support at the position corresponding to the atomizing cavity.

7. The ruggedized atomizer of claim 6, wherein, The side of the abutment part which faces the porous hard oil guiding block is provided with a concave part, the porous hard oil guiding block is in abutment with the abutment part, and the abutment part and the porous hard oil guiding block form the atomizing cavity in the concave part.

8. The ruggedized atomizer of claim 7, wherein, One side of the porous hard oil guiding block is planar, the other side of the porous hard oil guiding block is matched with the inner wall of the limiting tube, the heating element is arranged on the side of the porous hard oil guiding block which is planar, and the side of the porous hard oil guiding block which is planar is in abutment with the abutment part.

9. The durable atomizer of claim 1, wherein, The shell is a hollow tubular structure with at least one open end, a cigarette holder is arranged at one end of the shell, a base is arranged at the opening of the other end of the shell, the cigarette holder is provided with a smoking port, the base is provided with a first air hole, one end of the atomizing core is communicated with the cigarette holder through a smoke guide pipe, and the other end of the atomizing core is communicated with the first air hole.

10. The durable nebulizer device of claim 9, wherein, An upper oil absorbing cotton is arranged between the limiting tube and the cigarette holder, the upper oil absorbing cotton is provided with a first air hole at the position corresponding to the smoke guide pipe and the smoking port; the base is provided with a lower oil absorbing cotton, and the lower oil absorbing cotton is provided with a second air hole at the position corresponding to the atomizing cavity and the first air hole.

11. The durable nebulizer device of claim 9, wherein, The first seal of the shell is provided with a first through hole corresponding to the smoke guide pipe and the smoke inlet, one end of the limiting pipe is inserted into the first through hole, and the other end of the limiting pipe is fixed relative to the second seal.

12. The durable nebulizer device of claim 9, wherein, The shell comprises a first pipe body and a second pipe body connected to each other, the mouthpiece is connected to one end of the first pipe body away from the second pipe body, the base is connected to one end of the second pipe body away from the first pipe body, the second pipe body is formed by reducing the diameter of the first pipe body, and the first pipe body has a limiting flange protruding relative to the second pipe body.

13. The durable atomizer of claim 1, wherein, A sealing adapter is arranged between the limiting pipe and the smoke guide pipe.

14. The durable atomizer of claim 1, wherein, The porous hard oil guide block is made of glass, ceramic, mica or quartz provided with micropores.

15. An electronic cigarette, characterised in that A power supply assembly for powering the durable atomization device.

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