CN219613085U - Atomizing core, atomizer and electronic atomizing device - Google Patents

Abstract

The utility model discloses an atomization core, an atomizer and an electronic atomization device, wherein the atomization core comprises a heating body made of compact conductive ceramic materials and a liquid guide body with an atomization surface, a plurality of ventilation holes are distributed on the surface of the heating body at intervals, and one surface of the heating body provided with the ventilation holes is contacted with the atomization surface. The atomizing core disclosed by the utility model can improve the sucking taste of a user.

Description

Atomizing core, atomizer and electronic atomizing device

Technical Field

The utility model relates to the technical field of electronic atomization, in particular to an atomization core, an atomizer and an electronic atomization device.

Background

Electronic cigarette and be used for atomizing the electronic equipment of health care medicine, substance such as therapeutic drug can be generally referred to as electronic atomizing device, electronic atomizing device generally includes the atomizer that is used for producing the aerosol and is used for providing the battery pack of electric energy for the atomizer, and the structure of atomizer generally includes shell body and atomizing core, wherein, be equipped with the air current passageway that is linked together with the external world in the shell body and be used for storing the stock solution chamber of atomized liquid, atomizing core generally includes interconnect's liquid and heat-generating body, the atomizing core is installed on air current flow path of air current passageway and is linked together with the stock solution chamber, the atomizing process of atomizer generally is as follows: atomized liquid flows into the region where the liquid guide body of the atomization core is connected with the heating body from the liquid storage cavity, the atomized liquid around the heating body is atomized under the heating action of the heating body to form aerosol which can be sucked by a user, when the user sucks, suction airflow is formed in the airflow channel, and the aerosol flows out of the atomizer along with the suction airflow to be sucked by the user.

Most of the heating elements adopted in the prior art are usually solid metal heating elements, and because the metal heating elements are solid structures, aerosol generated by heating surrounding atomized liquid by the metal heating elements cannot pass through the metal heating elements and can only escape from the edges of the metal heating elements into the airflow channel, so that the generated aerosol cannot be timely conveyed into the airflow channel, a large amount of aerosol is easily reserved around the metal heating elements, the metal heating elements are too high in temperature for a long time, the atomized liquid is burnt easily, the smell is generated, the sucking taste of a user is reduced, and the aerosol generated by heating and atomizing the atomized liquid by the metal heating elements is often mixed with metal peculiar smell, so that the sucking taste of the user is further reduced.

Disclosure of Invention

The utility model mainly aims to provide an atomization core, an atomizer and an electronic atomization device, which aim to improve the sucking taste of a user.

To achieve the above object, the present utility model provides an atomizing core including:

A liquid guide having an atomizing surface;

the heating body is made of compact conductive ceramic materials, a plurality of ventilation holes are distributed on the surface of the heating body at intervals, and the heating body is provided with a plurality of ventilation holes, wherein one surface of the ventilation holes is contacted with the atomization surface.

Further, the heating body is sheet-shaped, and has a first surface and a second surface opposite to each other in a thickness direction thereof, each of the ventilation holes penetrating through the first surface and the second surface, the first surface being in close contact with the atomizing surface.

Further, the liquid guiding body encloses and closes the setting and forms the ventilation channel that the cavity link up, the atomizing surface is the one end terminal surface of liquid guiding body, still be equipped with on the heat-generating body and run through the first surface with the aperture of bleeder vent is 2mm ~ 10mm, a plurality of the bleeder vent encircles the bleeder vent sets up, just the bleeder vent with ventilation channel corresponds the intercommunication setting.

Further, the liquid guiding body comprises a first liquid guiding part and a second liquid guiding part, the first liquid guiding part is provided with the atomization surface, the material of the first liquid guiding part is porous ceramic, the material of the second liquid guiding part is fiber cotton, non-woven fabrics or blend fibers, and the heating body, the first liquid guiding part and the second liquid guiding part are sequentially laminated along the thickness direction of the heating body.

Further, the first liquid guiding part is sheet-shaped, and the thickness of the first liquid guiding part is 0.2 mm-1 mm.

Further, the second liquid guiding part is in a sheet shape or a block shape, and the thickness of the second liquid guiding part is 1-30 mm.

Further, the liquid guiding body comprises a first liquid guiding part and a second liquid guiding part, the first liquid guiding part is provided with the atomization surface, the material of the first liquid guiding part is porous ceramic, the material of the second liquid guiding part is fiber cotton, non-woven fabrics or blend fibers, one side of the first liquid guiding part, which is opposite to the heating body, is provided with a containing groove, and the second liquid guiding part is arranged in the containing groove.

Further, the accommodating groove is provided with a liquid inlet wall surface opposite to the atomization surface, and the thickness between the liquid inlet wall surface and the atomization surface is 0.2 mm-1 mm.

Further, the second liquid guiding part is in a sheet shape or a block shape, and the thickness of the second liquid guiding part is 1-30 mm along the thickness direction of the heating body.

Further, the atomizing core further comprises a first positive terminal pin and a first negative terminal pin, the heating body further comprises a first end and a second end which are opposite, the first positive terminal pin is electrically connected with the first end, and the first negative terminal pin is electrically connected with the second end.

Further, the heating body also has a first end and a second end which are opposite, wherein the first end is provided with a first metal coating, and the second end is provided with a second metal coating.

Further, the atomizing core further comprises a first positive electrode wire leg and a first negative electrode wire leg, the heating body further comprises a first end portion and a second end portion which are opposite to each other, a first metal coating is arranged on the first end portion, a second metal coating is arranged on the second end portion, the first positive electrode wire leg is welded with the first metal coating, and the first negative electrode wire leg is welded with the second metal coating.

Further, the liquid guiding body is of a hollow cylindrical structure, the atomization surface is an inner wall surface of the liquid guiding body, the heating body is arranged in a surrounding mode and forms a hollow through air passage, the heating body is provided with an outer peripheral surface and an inner peripheral surface which are opposite, the ventilation holes penetrate through the outer peripheral surface and the inner peripheral surface, and the outer peripheral surface is in close contact with the atomization surface.

Further, the heating element is in an open ring shape along the radial cross section of the heating element, the atomization core further comprises a first positive electrode wire leg and a first negative electrode wire leg, one end of the heating element along the circumferential direction of the heating element is electrically connected with the first positive electrode wire leg, the other end of the heating element is electrically connected with the first negative electrode wire leg, or one end of the heating element along the axial direction of the heating element is electrically connected with the first positive electrode wire leg, and the other end of the heating element is electrically connected with the first negative electrode wire leg.

Further, the heat-generating body includes first portion that generates heat and second portion that generates heat, first portion that generates heat with the second portion that generates heat is followed the radial cross section of heat-generating body is the open loop shape, the atomizing core still includes first anodal line foot, first negative pole line foot, second anodal line foot and second negative pole line foot, first portion that generates heat along its circumference one end with first anodal line foot electricity is connected, the other end with first negative pole line foot electricity is connected, second portion that generates heat along its circumference one end with second anodal line foot electricity is connected, the other end with second negative pole line foot electricity is connected, first portion that generates heat is connected with first anodal line foot's one end with second portion that generates heat is connected with second anodal line foot's one end phase concatenation, first portion that generates heat is connected with first negative pole line foot's one end with second portion that generates heat is connected with second negative pole line foot's one end phase concatenation.

Further, the cross section of the heating body along the radial direction of the heating body is in a closed ring shape, the atomization core further comprises a first positive electrode wire leg and a first negative electrode wire leg, one end of the heating body along the axial direction of the heating body is electrically connected with the first positive electrode wire leg, and the other end of the heating body is electrically connected with the first negative electrode wire leg.

Further, the radial cross section of the heating element is in a closed ring shape, the atomizing core further comprises a first ring electrode, a second ring electrode, a third ring electrode, a first positive electrode wire leg, a first negative electrode wire leg and a second positive electrode wire leg, the first ring electrode is sleeved at one axial end of the heating element, the second ring electrode is sleeved at the other axial end of the heating element, the third ring electrode is sleeved at the peripheral wall of the heating element and is positioned between the first ring electrode and the second ring electrode, and the first ring electrode and the second ring electrode are all spaced from the third ring electrode along the axial direction of the heating element; the first positive electrode wire leg is electrically connected with the first annular electrode, the second positive electrode wire leg is electrically connected with the second annular electrode, and the first negative electrode wire leg is electrically connected with the third annular electrode.

Further, the liquid-guiding material comprises any one of porous ceramics, fiber cotton, non-woven fabrics and blend fibers.

Further, the thickness of the heating element is 0.1 mm-2.5 mm.

Further, the pore diameter of each vent hole is 0.02 mm-1.4 mm.

Further, the distribution density of the ventilation holes is 15% -40%.

Further, the ventilation holes are uniformly distributed at intervals.

Further, the distance between two adjacent vent holes is 0.03 mm-4.2 mm.

In order to achieve the above purpose, the utility model further provides an atomizer, which comprises an outer shell and the atomization core, wherein the atomization core is arranged in the outer shell, an air flow channel communicated with the outside and a liquid storage cavity for storing atomized liquid are arranged in the outer shell, the heating element is positioned on an air flow path of the air flow channel, and the liquid guide is communicated with the liquid storage cavity.

In order to achieve the above object, the present utility model further provides an electronic atomization device, which includes a battery assembly and the aforementioned atomizer, wherein the battery assembly is electrically connected with the heating element.

Compared with the prior art, the utility model has the beneficial effects that:

in the technical scheme of the utility model, the heating element is made of the dense conductive ceramic material without peculiar smell, so when the heating element made of the dense conductive ceramic material is used for heating and atomizing the atomized liquid adsorbed by the liquid guide, the atomized liquid is atomized to form the aerosol which is not mixed with peculiar smell, thus the odor of the generated aerosol is prevented from being mixed with peculiar smell to reduce the sucking taste of a user, and the generated aerosol can be timely discharged through the vent holes arranged on the heating element due to the fact that the surface of the heating element is distributed with a plurality of vent holes arranged at intervals, thereby effectively reducing the risk that the generated aerosol cannot be timely discharged and stays around the heating element for a long time in the heating and atomizing process to cause the high temperature of the heating element, further effectively reducing the risk that the atomized liquid adsorbed by the liquid guide is burnt by the heating element with too high temperature to generate smell, and effectively improving the sucking taste of the user.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an atomizing core when a heating element is in a sheet shape in an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1 with the liquid guide removed;

FIG. 3 is a schematic perspective view of an atomizing core when the heating element is in a sheet shape according to another embodiment of the present utility model;

FIG. 4 is a schematic perspective view of an atomizing core when a heating element is in a sheet form according to still another embodiment of the present utility model;

FIG. 5 is an exploded view of the structure of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 4;

FIG. 7 is a schematic perspective view of an atomizing core when the heating element is in an annular sheet structure in an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a plan view of a sheet heating element in a closed loop shape in an embodiment of the utility model;

FIG. 10 is a plan view of a sheet-like heat-generating body in an open loop shape in an embodiment of the utility model;

FIG. 11 is a schematic perspective view of a cylindrical heat-generating body (including wire-legs) in an open-loop shape according to an embodiment of the present utility model;

FIG. 12 is a cross-sectional view of a heat-generating body having a cylindrical shape in an embodiment of the present utility model;

FIG. 13 is a cross-sectional view of an atomizing core when a heat generating body is cylindrical in accordance with an embodiment of the present utility model;

FIG. 14 is a schematic perspective view of a tubular heat-generating body (including wire-legs) having a closed loop shape according to an embodiment of the present utility model;

FIG. 15 is an exploded view of the structure of FIG. 14;

FIG. 16 is a schematic perspective view of a tubular heat-generating body (including wire-legs) in a closed loop shape according to another embodiment of the present utility model;

FIG. 17 is a schematic perspective view of a tubular heat-generating body (including wire-legs) having a closed loop shape according to still another embodiment of the present utility model;

FIG. 18 is a cross-sectional view of a atomizer in an embodiment of the utility model;

fig. 19 is a cross-sectional view of a nebulizer in another embodiment of the utility model.

Reference numerals illustrate:

1-liquid guiding, 10-ventilation channels, 11-first liquid guiding parts, 111-atomization surfaces, 112-accommodating grooves, 1121-liquid inlet wall surfaces and 12-second liquid guiding parts;

2-heat-generating body, 201-vent hole, 202-vent hole, 211-first surface, 212-second surface, 221-first heat-generating portion, 222-second heat-generating portion, 23-vent, 24-outer peripheral surface, 25-inner peripheral surface;

31-first positive electrode terminal pin, 32-second positive electrode terminal pin;

41-first negative electrode terminal, 42-second negative electrode terminal;

51-a first metal coating, 52-a second metal coating;

61-a first ring electrode, 62-a second ring electrode, 63-a third ring electrode;

7-outer shell, 71-air flow channel, 72-liquid storage cavity.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is included in the embodiment of the present utility model, the directional indication is merely used to explain a relative positional relationship, a movement condition, and the like between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, when an element is referred to as being "fixed to" another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, 3 to 8 and 13, an embodiment of the present utility model provides an atomizing core including a liquid guiding body 1 and a heating body 2 made of a dense conductive ceramic material, wherein:

the liquid guide body 1 has an atomization surface 111 for connecting the heating element 2;

a plurality of ventilation holes 201 are distributed on the surface of the heating body 2 at intervals, and one surface of the heating body 2 provided with the plurality of ventilation holes 201 is contacted with the atomization surface 111 of the liquid guide body 1.

In this embodiment, in the implementation, the material of the liquid guiding body 1 may be at least one of porous ceramics, fiber cotton, non-woven fabrics and blend fibers, and of course, the material of the liquid guiding body 1 may also be other porous materials capable of absorbing and conducting atomized liquid, so long as the use requirement can be met, and the specific material of the liquid guiding body 1 is not particularly limited in this embodiment. The blend fiber can be specifically prepared from the existing mature blend fiber materials such as polyester/nylon blend fabrics formed by blending polyester and nylon, cotton/polyester blend fabrics formed by blending cotton and polyester, cotton/nylon blend fabrics formed by blending cotton and nylon, cotton/aramid blend fabrics formed by blending cotton and aramid, and the like.

In this embodiment, the size of the aperture of each vent hole 201 may be flexibly set according to actual needs in the implementation, as long as the ventilation effect is achieved, and the size of the aperture of each vent hole 201 may be the same or different, and the embodiment is not particularly limited. In addition, the specific shape of each vent 201 may be flexibly set according to actual needs, and may be an irregular hole or a regular hole, for example, may be an elliptical hole, a circular hole, a polygonal hole, or other regular hole, where the polygonal hole may be a triangular hole, a diamond hole, a square hole, a rectangular hole, a hexagonal hole, or other hole, and the shape of each vent 201 may be the same or different, and the specific shape of each vent 201 is not specifically limited in this embodiment.

The vent holes 201 may be formed on the surface of the heating element 2 by laser processing or the like, and the processing method of the vent holes 201 is not particularly limited in this embodiment.

In the present embodiment, the specific shape of the heating element 2 may be flexibly set according to actual needs in the specific implementation, and may be, for example, a sheet shape, a tubular shape, or other shapes.

In the technical scheme of the embodiment, because the heating body 2 is made of the dense conductive ceramic material without peculiar smell, when the heating body 2 made of the dense conductive ceramic material is used for heating and atomizing the atomized liquid adsorbed by the liquid guide body 1, the atomized liquid is atomized to form the aerosol which is not mixed with peculiar smell, so that the odor is prevented from being mixed with the generated aerosol to reduce the sucking taste of a user, and because the surface of the heating body 2 is distributed with the plurality of ventilation holes 201 which are arranged at intervals, the generated aerosol can be timely discharged through the ventilation holes 201 arranged on the heating body 2, thereby effectively reducing the risk that the heating body 2 is excessively high due to the fact that the generated aerosol cannot be timely discharged and is formed around the heating body 2 for a long time in the heating and atomizing process, further effectively reducing the risk that the atomized liquid adsorbed by the liquid guide body 1 is burnt by the excessively high temperature to generate the smell, and effectively improving the sucking taste of the user.

Further, it is considered that if the pore diameter of each vent hole 201 is set smaller, the aerosol is more difficult to be discharged, and if the pore diameter of each vent hole 201 is set larger, the aerosol is discharged, but the heating element 2 tends to lack a sufficient heating area for heating the atomized liquid, so that the aerosol generation amount is not easily increased. In view of this, in an exemplary embodiment of the present utility model, the aperture of each vent 201 is preferably 0.02mm to 1.4mm. Thus, by setting the aperture size of each vent hole 201 provided on the heating element 2 to 0.02mm to 1.4mm, it is possible to ensure that the generated aerosol can smoothly escape from each vent hole 201, and it is also advantageous to ensure that the heating element 2 has a sufficient heating area for heating and atomizing the atomized liquid and generate sufficient aerosol for the user to inhale.

Alternatively, in some embodiments, the heat generating body 2 may be provided in a sheet-like structure, specifically:

as shown in fig. 1 to 10, the heat generating body 2 is in a sheet shape, and the heat generating body 2 has a first surface 211 and a second surface 212 opposite to each other in the thickness direction thereof, each vent 201 penetrates the first surface 211 of the heat generating body 2 and the second surface 212 of the heat generating body 2, and the first surface 211 of the heat generating body 2 is in close contact with the atomizing surface 111 of the liquid guide body 1.

In the present embodiment, the heating element 2 may be a flat plate-shaped sheet structure (for example, an elliptical sheet structure, a circular sheet structure, a polygonal sheet structure, a racetrack-shaped sheet structure, or the like), or a sheet structure that is curved (for example, a wavy sheet structure, a circular arc-shaped sheet structure, or the like), so long as the use requirements are satisfied.

In addition, when the heating element 2 is in a sheet structure, the shape of the liquid guiding body 1 may be a sheet shape, a block shape, or the like, and the heating element 2 may be connected to the atomization surface 111 of the liquid guiding body 1 by tiling, embedding, sintering, or the like, so that the first surface 211 of the heating element 2 contacts with the atomization surface 111 of the liquid guiding body 1, and the second surface 212 of the heating element 2 is opposite to the atomization surface 111 of the liquid guiding body 1 and is exposed to the outside air. Particularly, when the material of the liquid guiding body 1 is porous ceramic, the heating body 2 and the liquid guiding body 1 are integrally formed by sintering, that is, the heating body 2 and the liquid guiding body 1 are integrally formed by sintering, which is beneficial to improving the bonding strength between the heating body 2 and the liquid guiding body 1.

In this embodiment, it should also be noted that, in the specific implementation, the specific thickness of the heating element 2 may be flexibly set according to the actual needs, in general, the greater the thickness of the heating element 2, the greater the structural strength of the heating element 2, and the less likely the heating element 2 will break, so that the service life of the heating element 2 is advantageously prolonged by thickening the thickness of the heating element 2; however, the greater the thickness of the heating element 2, the greater the heat-melting of the heating element 2, and further the power consumption of the heating element 2 increases (i.e., the greater the thickness of the heating element 2, the more electric energy is required to be consumed during operation in order to achieve the same operating temperature), that is, the structural strength and the heat-melting of the heating element 2 are both proportional to the thickness of the heating element 2, so that, in practical implementation, the thickness of the heating element 2 can be flexibly set by combining the two factors of the structural strength and the heat-melting of the heating element 2, so as to meet practical requirements.

Further, in some embodiments, when the heat generating body 2 is of a sheet-like structure, the heat generating body 2 may be specifically provided as a sheet-like structure having a ring shape, specifically:

as shown in fig. 7-10, the heating element 2 is further provided with ventilation holes 202 penetrating through the first surface 211 and the second surface 212, the aperture of the ventilation holes 202 is 2 mm-10 mm, a plurality of ventilation holes 201 are arranged around the ventilation holes 202, the liquid guide body 1 is enclosed and arranged to form a hollow ventilation channel 10 which is penetrated, the atomization surface 111 of the liquid guide body 1 is an end face of one end of the liquid guide body 1, and the ventilation holes 202 of the heating element 2 are correspondingly communicated with the ventilation channel 10 of the liquid guide body 1. In this way, the heating body 2 can be fully contacted with the liquid guiding body 1, so that atomized liquid adsorbed on the end surface of the liquid guiding body 1 can be well heated and atomized, and sufficient aerosol is generated, and the aperture of the ventilation hole 202 is 2-10 mm and larger than that of the ventilation hole 201, so that the ventilation property of the ventilation hole 202 is better than that of the ventilation hole 201, and the generated aerosol can be rapidly taken away when external air flows through the ventilation hole 202, so that the user can inhale, namely, the ventilation hole 202 is arranged, and the smoothness of aerosol derivation is improved.

In this embodiment, in the implementation, as shown in fig. 7 to 9, the heating element 2 may specifically be a sheet structure in a closed loop shape, for example, a sheet structure in a circular loop shape, a sheet structure in a square loop shape, or the like; in other embodiments, as shown in fig. 10, the heating element 2 may also be in a sheet-like structure in the form of an open ring with a break, which may be flexibly set according to actual needs, and this is not particularly limited in this example. In addition, the specific shape of the ventilation holes 202 may be flexibly set according to actual needs, and may be irregular holes or regular holes, for example, may be regular holes such as oval holes, circular holes, polygonal holes, etc. In addition, the setting position of the air vent 202 can be flexibly set according to actual needs, and can be set in the middle of the heating element 2 (that is, the air vent 202 can be set on the heating element 2 in the middle), and can also be set in other positions of the heating element 2 except for the middle, which is not particularly limited in this embodiment, preferably, the air vent 202 is set in the middle of the heating element 2, so that the aesthetic feeling of the heating element 2 is improved.

Alternatively, referring to fig. 3, in an exemplary embodiment of the present utility model, the liquid guiding body 1 includes a first liquid guiding portion 11 and a second liquid guiding portion 12, the first liquid guiding portion 11 has an atomization surface 111, the material of the first liquid guiding portion 11 is porous ceramic, the material of the second liquid guiding portion 12 is fiber cotton, non-woven fabric or blend fiber, and the heating body 2, the first liquid guiding portion 11 and the second liquid guiding portion 12 are sequentially stacked along the thickness direction of the heating body 2.

In the present embodiment, based on the above structural design, on the one hand, since the first liquid guiding portion 11 made of porous ceramics has a certain hardness, it is advantageous to increase the structural strength of the heat generating body 2 after the heat generating body 2 is laminated with the first liquid guiding portion 11 made of porous ceramics, so that the heat generating body 2 can be made as thin as possible to reduce the heat melting thereof, that is, the first liquid guiding portion 11 made of porous ceramics can compensate for the problem of the reduced structural strength when the thickness of the heat generating body 2 is set smaller; on the other hand, considering that the liquid guiding performance of the porous ceramic material is relatively poor (i.e. the liquid guiding speed is slow) compared with porous materials such as fiber cotton, non-woven fabrics and blend fibers, if porous ceramic is selected as the material of the whole liquid guiding body 1, then in the working process of the atomization core, the problem that the liquid guiding body 1 cannot conduct atomized liquid to the atomization surface 111 connected with the heating body 2 in time to cause the heating body 2 to generate dry burning is easily caused easily occurs, based on the consideration, the embodiment performs a composite structure design on the liquid guiding body 1, on the basis that the material of the first liquid guiding part 11 is selected as the porous ceramic, the second liquid guiding part 12 made of fiber cotton or non-woven fabrics or blend fibers is further added, and the second liquid guiding body 1 is laminated on the other side of the first liquid guiding part 11 back to the heating body 2, therefore, compared with the material adopting the porous ceramic as the whole liquid guiding body 1, the liquid guiding performance of the porous ceramic is favorable for improving the whole liquid guiding body 1, namely the liquid guiding performance of the porous ceramic is also easily caused by the composite structure that the porous ceramic is formed by the porous ceramic 1 under the condition that the same thickness of the first liquid guiding body 1 and the porous ceramic layer 1 is formed by the composite structure. Therefore, according to the embodiment, through the composite structural design of the liquid guiding body 1, the structural strength of the heating body 2 can be increased, the heating body 2 can be made as thin as possible to reduce the hot melting of the heating body 2, and the risk of the heating body 2 that the liquid-lack dry combustion can be effectively reduced in the working process of the atomizing core.

Further, referring to fig. 3, in an exemplary embodiment of the present utility model, the first liquid guiding portion 11 is in a sheet shape, and the thickness of the first liquid guiding portion 11 is 0.2 mm-1 mm. By this arrangement, it is possible to avoid not only the first liquid guiding portion 11 being provided too thick (more than 1 mm) to lengthen the time for conducting the atomized liquid from the second liquid guiding portion 12 to the atomizing surface 111 of the first liquid guiding portion 11, but also the first liquid guiding portion 11 being provided too thin (less than 0.2 mm) to reduce the degree of reinforcement of the structural strength of the first liquid guiding portion 11 to the heat generating body 2, that is, by providing the first liquid guiding portion 11 in a sheet-like structure having a thickness of 0.2mm to 1mm, the liquid guiding performance of the entire liquid guiding portion 1 and the structural strength of the heat generating body 2 can be well considered.

In this embodiment, it should be noted that, when the atomizing core is a laminated composite layer structure, the second liquid guiding portion 12 may be a sheet-like structure or a block-like structure, which is not particularly limited in this embodiment, and the thickness of the second liquid guiding portion 12 may be flexibly set according to actual requirements, and optionally, the thickness of the second liquid guiding portion 12 is 1mm to 30mm.

Optionally, in another exemplary embodiment of the present utility model, in order to achieve the technical effect that not only the structural strength of the heating element 2 can be increased, so that the heating element 2 can be made as thin as possible to reduce the hot melting thereof, but also the risk of the heating element 2 being in a liquid-shortage dry-combustion during the operation of the atomizing core can be effectively reduced, in addition to the composite structural design of the liquid guide 1 in a stacked manner, the composite structural design of the liquid guide 1 can be adopted, specifically:

As shown in fig. 4-6, the liquid guiding body 1 includes a first liquid guiding portion 11 and a second liquid guiding portion 12, the first liquid guiding portion 11 has an atomization surface 111, the material of the first liquid guiding portion 11 is porous ceramic, the material of the second liquid guiding portion 12 is fiber cotton, non-woven fabric or blend fiber, a containing groove 112 is arranged on one side of the first liquid guiding portion 11 facing away from the heating body 2, and the second liquid guiding portion 12 is arranged in the containing groove 112.

In this embodiment, it should be noted that the technical principle and the technical effect of the atomizing core of this embodiment are similar to those of the above-mentioned composite layer type atomizing core (as shown in fig. 3) which is stacked, and are not described herein again. In addition, in the embodiment, the second liquid guiding portion 12 may be a sheet-like structure or a block-like structure, and this embodiment is not particularly limited, but the thickness of the second liquid guiding portion 12 may be flexibly set according to actual requirements, and optionally, the thickness of the second liquid guiding portion 12 is 1mm to 30mm along the thickness direction of the heating element 2.

Further, referring to fig. 4 and 6, in an exemplary embodiment of the present utility model, the receiving groove 112 has a liquid inlet wall surface 1121 opposite to the atomizing surface 111, and a thickness between the liquid inlet wall surface 1121 and the atomizing surface 111 of the first liquid guiding portion 11 is 0.2mm to 1mm. By this arrangement, it is possible to avoid the thickness between the liquid inlet wall 1121 of the first liquid guiding portion 11 and the atomizing surface 111 of the first liquid guiding portion 11 being too thick (more than 1 mm) and to extend the time for which the atomized liquid is conducted from the second liquid guiding portion 12 to the atomizing surface 111 of the first liquid guiding portion 11, and it is possible to avoid the thickness between the liquid inlet wall 1121 of the first liquid guiding portion 11 and the atomizing surface 111 of the first liquid guiding portion 11 being too thin (less than 0.2 mm) and to reduce the degree of reinforcement of the structural strength of the first liquid guiding portion 11 to the heat generating body 2, that is, by setting the thickness between the liquid inlet wall 1121 of the first liquid guiding portion 11 and the atomizing surface 111 of the first liquid guiding portion 11 to be 0.2mm to 1mm, both the liquid guiding performance of the whole liquid guiding portion 1 and the structural strength of the heat generating body 2 can be well considered.

Further, referring to fig. 4 to 7, in an exemplary embodiment of the present utility model, when the heating element 2 is provided in a sheet structure, the atomizing core provided in this embodiment may further include a first positive electrode leg 31 and a first negative electrode leg 41, the heating element 2 further having opposite first and second ends, the first positive electrode leg 31 being electrically connected to the first end of the heating element 2, and the first negative electrode leg 41 being electrically connected to the second end of the heating element 2. So, through setting up two wire feet, when being applied to the atomizer with the atomizing core of this embodiment, can be convenient for carry out the electricity with the positive and negative pole of atomizer respectively with the both ends of heat-generating body 2 and be connected, moreover, compare in direct both ends with heat-generating body 2 directly with the positive and negative pole of atomizer carry out the electrical contact, the setting of wire foot still is favorable to reducing the risk that the positive and negative pole of atomizer burns out because of direct and higher heat-generating body 2 of temperature contacts in the course of the work.

Further, referring to fig. 1 to 3 and 19, in another exemplary embodiment of the present utility model, when the heat generating body 2 is provided in a sheet-like structure, the heat generating body 2 further has opposite first and second ends, the first end of the heat generating body 2 is provided with the first metal coating layer 51, and the second end of the heat generating body 2 is provided with the second metal coating layer 52. So set up for two metal coating (i.e. first metal coating 51 and second metal coating 52) can be used as two electrodes of heat-generating body 2, in some application scenario that is applied to the atomizer with the atomizing core of this embodiment, two metal coating can directly carry out the electrical contact with the positive negative pole of atomizer respectively through the mode of crimping, compare in directly carrying out the electrical contact with the positive negative pole of atomizer with the both ends of heat-generating body 2 directly, the reliability of electrical connection between the positive negative pole of atomizer and the heat-generating body 2 is favorable to improving to the setting of metal coating. In the specific implementation, the specific materials of the first metal coating layer 51 and the second metal coating layer 52 may be gold, silver, aluminum, copper, nickel, platinum, titanium, chromium, gold alloy, silver alloy, aluminum alloy, copper alloy, nickel alloy, platinum alloy, titanium alloy, chromium alloy, and other metal materials, so long as the use requirements can be met, and the embodiment is not limited in particular.

Further, referring to fig. 4 to 7, in still another exemplary embodiment of the present utility model, when the heating element 2 is provided in a sheet structure, the atomizing core provided in this embodiment further includes a first positive electrode leg 31 and a first negative electrode leg 41, the heating element 2 further has opposite first and second ends, a first metal coating layer 51 is provided on the first end of the heating element 2, a second metal coating layer 52 is provided on the second end of the heating element 2, the first positive electrode leg 31 is welded to the first metal coating layer 51, and the first negative electrode leg 41 is welded to the second metal coating layer 52. Thus, compared with directly electrically connecting the wire leg with the end of the heating element 2, the reliability of the electrical connection between the wire leg and the heating element 2 is improved by adding the metal coating. In the specific implementation, the specific materials of the first metal coating layer 51 and the second metal coating layer 52 may be gold, silver, aluminum, copper, nickel, platinum, titanium, chromium, gold alloy, silver alloy, aluminum alloy, copper alloy, nickel alloy, platinum alloy, titanium alloy, chromium alloy, and other metal materials, so long as the use requirements can be met, and the embodiment is not limited in particular.

Alternatively, in other embodiments, the heating element 2 and the liquid guiding body 1 may also be each provided in a cylindrical structure, specifically:

As shown in fig. 11 to 17, the liquid guide body 1 has a hollow cylindrical structure, the atomization surface 111 of the liquid guide body 1 is an inner wall surface of the liquid guide body 1, the heating body 2 is surrounded and provided with a hollow through air passage 23, the heating body 2 is provided with an outer peripheral wall surface 24 and an inner peripheral wall surface 25 which are opposite, each air vent 201 penetrates through the outer peripheral wall surface 24 of the heating body 2 and the inner peripheral wall surface 25 of the heating body 2, the liquid guide body 1 is sleeved on the outer peripheral wall surface 24 of the heating body 2, so that the outer peripheral wall surface 24 of the heating body 2 is closely contacted with the atomization surface 111 of the liquid guide body 1, and the inner peripheral wall surface 25 of the heating body 2 is back to the atomization surface 111 of the liquid guide body 1 and is exposed to the outside air. In particular, the heating element 2 may be a semi-enclosed tubular structure (in this case, the cross section of the heating element 2 along the radial direction thereof is in an open loop shape, for example, in a "C" shape, a "U" shape, or the like), or may be a fully enclosed tubular structure (in this case, the cross section of the heating element 2 along the radial direction thereof is in a closed loop shape, for example, in a "O" shape, a triangle shape, a square shape, a rectangle shape, or the like), so long as the use requirement can be satisfied.

Further, in an exemplary embodiment of the present utility model, when the heating element 2 is configured as a semi-surrounding cylindrical structure, in order to facilitate electrical connection between the heating element 2 and the anode and cathode of the atomizer in some application scenarios where the atomizing core of the present embodiment is applied to the atomizer, the method may be specifically implemented by adding wire pins:

As shown in fig. 11, the heat-generating body 2 has an open ring shape in its radial cross section, the atomizing core further includes a first positive electrode leg 31 and a first negative electrode leg 41, one end of the heat-generating body 2 in its circumferential direction is electrically connected to the first positive electrode leg 31, the other end is electrically connected to the first negative electrode leg 41, or one end of the heat-generating body 2 in its axial direction is electrically connected to the first positive electrode leg 31, the other end is electrically connected to the first negative electrode leg 41. Here, it can be understood that when two legs are provided at both ends of the heating element 2 in the circumferential direction thereof, after the two legs are turned on, current mainly flows in the circumferential direction of the heating element 2 to energize the heating element 2 to generate heat; when two legs are provided at both ends of the heating element 2 in the axial direction thereof, after the two legs are turned on, current mainly flows in the axial direction of the heating element 2 to energize the heating element 2 to generate heat.

Similarly, in another exemplary embodiment of the present utility model, when the heating element 2 is configured as a fully-enclosed cylindrical structure, in order to facilitate the electrical connection between the heating element 2 and the anode and cathode of the atomizer in some application scenarios where the atomizing core of the present embodiment is applied to the atomizer, the method of adding wire pins may also be implemented, specifically:

As shown in fig. 16, the heating element 2 has a closed ring shape in its radial cross section, and the atomizing core further includes a first positive electrode leg 31 and a first negative electrode leg 41, and one end of the heating element 2 in its axial direction is electrically connected to the first positive electrode leg 31, and the other end is electrically connected to the first negative electrode leg 41.

Alternatively, in still another exemplary embodiment of the present utility model, in addition to the heating element 2 may be made to have a closed loop shape in its radial cross section by integrally disposing, the heating element 2 may be made to have a closed loop shape in its radial cross section by splicing:

as shown in fig. 14 to 15, the heating element 2 includes a first heating portion 221 and a second heating portion 222, the first heating portion 221 and the second heating portion 222 are all open-loop in cross section along the radial direction of the heating element 2, the atomizing core further includes a first positive electrode terminal 31, a first negative electrode terminal 41, a second positive electrode terminal 32 and a second negative electrode terminal 42, one end of the first heating portion 221 along its circumferential direction is electrically connected with the first positive electrode terminal 31, the other end is electrically connected with the first negative electrode terminal 41, one end of the second heating portion 222 along its circumferential direction is electrically connected with the second positive electrode terminal 32, the other end is electrically connected with the second negative electrode terminal 42, one end of the first heating portion 221 connected with the first positive electrode terminal 31 is spliced with one end of the second heating portion 222 connected with the second positive electrode terminal 32, and one end of the first heating portion 221 connected with the first negative electrode terminal 41 is spliced with one end of the second heating portion 222 connected with the second negative electrode terminal 42.

In the present embodiment, the splice between the first heat generating portion 221 and the second heat generating portion 222 may be insulated or conductive, which is not particularly limited in the present embodiment. It can be understood herein that when the two splicing positions between the first heating portion 221 and the second heating portion 222 are all set in an insulating manner, the first heating portion 221 and the second heating portion 222 can work independently, so when the atomizing core of the embodiment is applied to a use scene of an electronic atomizing device, the heating area of the heating element 2 can be controlled to control the generation amount of aerosol, so as to meet the sucking requirements of different users, for example, when the user needs to suck a smaller amount of aerosol, only one of the first heating portion 221 and the second heating portion 222 can be controlled to generate electricity. And when the user needs to suck a larger amount of aerosol, the first heat generating part 221 and the second heat generating part 222 can be controlled to be simultaneously energized to generate heat. When the two splicing positions between the first heating portion 221 and the second heating portion 222 are electrically conductive, the first heating portion 221 and the second heating portion 222 may operate synchronously, and the first heating portion 221 and the second heating portion 222 may operate synchronously in various manners, for example, the first positive terminal pin 31, the first negative terminal pin 41, the second positive terminal pin 32 and the second negative terminal pin 42 may be powered on, for example, only the first positive terminal pin 31 and the first negative terminal pin 41 may be powered on, or, for example, only the second positive terminal pin 32 and the second negative terminal pin 42 may be powered on.

Further, in still another exemplary embodiment of the present utility model, when the heating element 2 is provided in a tubular structure that is entirely surrounded by an integrally provided manner, the partitioned heating function of the heating element 2 can also be achieved by reasonably providing the arrangement of the legs, specifically:

as shown in fig. 17, the radial cross section of the heating element 2 is closed loop, the atomizing core further comprises a first annular electrode 61, a second annular electrode 62, a third annular electrode 63, a first positive terminal pin 31, a first negative terminal pin 41 and a second positive terminal pin 32, the first annular electrode 61 is sleeved at one end of the heating element 2 along the axial direction thereof, the second annular electrode 62 is sleeved at the other end of the heating element 2 along the axial direction thereof, the third annular electrode 63 is sleeved at the peripheral wall of the heating element 2 and is positioned between the first annular electrode 61 and the second annular electrode 62, and the first annular electrode 61 and the second annular electrode 62 are both spaced from the third annular electrode 63 along the axial direction of the heating element 2; the first positive electrode terminal 31 is electrically connected to the first ring electrode 61, the second positive electrode terminal 32 is electrically connected to the second ring electrode 62, and the first negative electrode terminal 41 is electrically connected to the third ring electrode 63. In the embodiment, the area of the portion of the heating element 2 between the first ring electrode 61 and the third ring electrode 63 may be the same as or different from the area of the portion of the heating element 2 between the second ring electrode 62 and the third ring electrode 63, which may be flexibly selected according to the actual use requirements, and this embodiment is not particularly limited.

In the present embodiment, based on the above structural design, when the first positive electrode terminal 31 and the first negative electrode terminal 41 are powered on and the second positive electrode terminal 32 is not powered on, the heat generating body 2 located in the partial region between the first annular electrode 61 and the third annular electrode 63 can be caused to be energized to generate heat, while the heat generating body 2 located in the partial region between the second annular electrode 62 and the third annular electrode 63 is not caused to generate heat. When the second positive electrode leg 32 and the first negative electrode leg 41 are powered on and the first positive electrode leg 31 is not powered on, the heat generating body 2 in the partial region between the second ring electrode 62 and the third ring electrode 63 can be energized to generate heat, while the heat generating body 2 in the partial region between the first ring electrode 61 and the third ring electrode 63 is not energized. When the first positive electrode leg 31, the second positive electrode leg 32, and the first negative electrode leg 41 are all powered on, the entire heating element 2 can be energized to generate heat. As such, when the atomizing core of the present embodiment is applied to a use scene of an electronic atomizing device, the amount of aerosol generated can be controlled by controlling the heat generating area of the heat generating body 2, so as to meet the sucking demands of different users, for example, when a user needs to suck a smaller amount of aerosol, local heat generation of the heat generating body 2 can be controlled, for example, only the heat generating body 2 in a partial region between the second ring electrode 62 and the third ring electrode 63 is controlled to be energized to generate heat. And when the user needs to suck a large amount of aerosol, the heating body 2 can be controlled to generate heat as a whole (i.e. all the wire feet are powered on).

Further, considering that in practical applications, if the thickness of the heating element 2 is set too thick, the heat fusion of the heating element 2 is increased, which results in an increase in power consumption of the heating element 2 (i.e., the thicker the thickness of the heating element 2 is, the more electric energy is required to be consumed in operation to achieve the same operating temperature), while if the thickness of the heating element 2 is set too thin, although it is advantageous to reduce the heat fusion of the heating element 2, the structural strength of the heating element 2 is reduced, which results in a breakage phenomenon of the heating element 2, which reduces the service life thereof, in some embodiments, the thickness of the heating element 2 is preferably 0.1mm to 2.5mm. By the arrangement, the hot melting and the structural strength of the heating body 2 can be well considered, so that the heating body 2 can keep good structural strength, and the power consumption of the heating body can reach normal acceptable level.

In this embodiment, it should be noted that, in the specific implementation, the thickness of the heating element 2 may be uniformly set (i.e. the thicknesses of the respective portions of the heating element 2 are equal), or may be unevenly set (i.e. the thicknesses of the respective portions of the heating element 2 are different), preferably, the thickness of the heating element 2 is uniformly set, which is favorable to making the resistance distribution of the heating element 2 more uniform, and further is favorable to improving the heating uniformity of the heating element 2.

Further, considering that in practical use, if the distribution density of the vent holes 201 provided on the heat generating body 2 is set too small, the air permeability of the heat generating body 2 is lowered, and thus the aerosol is not easily led out, and if the distribution density of the vent holes 201 provided on the heat generating body 2 is set too large, the heat generating area and the structural strength of the heat generating body 2 are lowered, and thus the generation amount of the aerosol is not easily increased, and the service life of the heat generating body 2 is not easily improved, it is preferable that the distribution density of the vent holes 201 provided on the heat generating body 2 is 15% to 40% in some embodiments. By the arrangement, the ventilation performance, the heating area and the structural strength of the heating body 2 can be well considered, so that the heating body 2 has enough heating area for heating atomized liquid and generating more sufficient aerosol, the generated aerosol can be smoothly led out, and the better structural strength can be maintained.

In this embodiment, the distribution density of the vent holes 201 is the percentage between the sum of the projected areas of the vent holes 201 on the surface of the heat generating body 2 and the total area of the two surfaces of the heat generating body 2 on which the vent holes 201 are provided before the vent holes 201 are provided, and assuming that the distribution density of the vent holes 201 is M, the sum of the projected areas of the vent holes 201 on the surface of the heat generating body 2 is S1, the total area of the two surfaces of the heat generating body 2 on which the vent holes 201 are required to be provided before the vent holes 201 are provided is S2, then m=s1/s2×100%, for example, assuming that the heating element 2 is a rectangular sheet structure (i.e., the heating element 2 is a rectangular parallelepiped structure), and the length, width, and height of the heating element 2 are 20mm, 10mm, and 1mm, respectively, and the number of the vent holes 201 is 200, and each vent hole 201 is a square vent hole 201 with a hole diameter of 0.5mm, there is s1=0.5×0.5×200×2=100 square millimeters, s2=the area of the first surface 211 before the vent hole 201 is provided+the area of the second surface 212 before the vent hole 201 is provided=20×10+20×10=400 square millimeters, and m=100/400×100% =25%. It is understood that, in general, the larger the distribution density of the vent holes 201, the larger the number of vent holes 201 provided in the heating element 2.

Alternatively, in some embodiments, the ventilation holes 201 may be uniformly distributed on the surface of the heating element 2 at intervals, in other embodiments, the ventilation holes 201 may also be uniformly distributed on the surface of the heating element 2 at intervals, preferably, the ventilation holes 201 are uniformly distributed on the surface of the heating element 2 at intervals (in practical implementation, the ventilation holes 201 may be uniformly distributed in a rectangular array, a circular array, or the like at intervals), which is beneficial to further improving the uniformity of the distribution of the resistance of the heating element 2, and further improving the uniformity of the heating element 2. Wherein, whether the respective ventilation holes 201 are uniformly spaced or unevenly spaced, in practice, the interval between two adjacent ventilation holes 201 is optionally 0.03mm to 4.2mm.

Correspondingly, referring to fig. 3 and 19 in combination or referring to fig. 13 and 18 in combination, the embodiment of the present utility model further provides an atomizer, which includes an outer housing 7 and an atomization core in any of the foregoing embodiments, the atomization core is installed in the outer housing 7, wherein an air flow channel 71 communicating with the outside and a liquid storage cavity 72 for storing atomized liquid are provided in the outer housing 7, the heating element 2 is located on an air flow path of the air flow channel 71, and the first liquid guiding body 1 is communicated with the liquid storage cavity 72.

In this embodiment, the atomizer of this embodiment has the same technical effects as the above-mentioned atomizing core thanks to the improvement of the above-mentioned atomizing core, and will not be described here again.

Correspondingly, the embodiment of the utility model also provides an electronic atomization device, which comprises a battery assembly and the atomizer in any embodiment, wherein the battery assembly is electrically connected with the heating body 2, and is used for providing electric energy for the heating body 2 so that the heating body 2 can be electrified to heat and vaporize atomized liquid on the atomization surface 111 of the liquid guide body 1 into aerosol which can be sucked by a user, the battery assembly can specifically comprise a power supply and a control circuit board, the power supply can be a lithium battery, a dry battery and other types of power supplies, the control circuit board is respectively and electrically connected with the power supply and the heating body 2, the power supply can be controlled by the control circuit board to supply power to the heating body 2, so that the heating body 2 is electrified to heat and vaporize the atomized liquid on the atomization surface 111 of the liquid guide body 1 into aerosol which can be sucked by the user.

In this embodiment, specifically, the electronic atomization device of this embodiment may be an electronic cigarette (in this case, the atomized liquid mentioned in the foregoing embodiment of the present utility model may be aerosol forming substrate of a type such as tobacco tar), and the electronic atomization device of this embodiment has the same technical effects as the foregoing atomization core due to the improvement of the foregoing atomization core, which is not described herein again.

It should be noted that, other contents of the atomizing core, the atomizer and the electronic atomizing device disclosed in the present disclosure may be referred to the prior art, and will not be described herein.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (15)

1. An atomizing core, comprising:

a liquid guide having an atomizing surface;

the heating body is made of compact conductive ceramic materials, a plurality of ventilation holes are distributed on the surface of the heating body at intervals, and the heating body is provided with a plurality of ventilation holes, wherein one surface of the ventilation holes is contacted with the atomization surface.

2. The atomizing core of claim 1, wherein the heat generating body is sheet-like and has first and second opposed surfaces in a thickness direction thereof, each of the vent holes penetrating the first and second surfaces, the first surface being in close contact with the atomizing surface.

3. The atomizing core of claim 2, wherein the liquid guide comprises a first liquid guide portion and a second liquid guide portion, the first liquid guide portion has the atomizing surface, the material of the first liquid guide portion is porous ceramic, the material of the second liquid guide portion is fiber cotton, non-woven fabric or blend fiber, and the heating element, the first liquid guide portion and the second liquid guide portion are sequentially stacked along the thickness direction of the heating element.

4. The atomizing core of claim 3, wherein the first liquid directing portion is sheet-like and has a thickness of from 0.2mm to 1mm;

and/or the second liquid guide part is sheet-shaped or block-shaped, and the thickness of the second liquid guide part is 1-30 mm.

5. The atomizing core of claim 2, wherein the liquid guide comprises a first liquid guide portion and a second liquid guide portion, the first liquid guide portion has the atomizing surface, the material of the first liquid guide portion is porous ceramic, the material of the second liquid guide portion is fiber cotton, non-woven fabric or blend fiber, a containing groove is formed in one side, facing away from the heating body, of the first liquid guide portion, and the second liquid guide portion is arranged in the containing groove.

6. The atomizing core of claim 5, wherein the receiving groove has a liquid inlet wall opposite the atomizing surface, and a thickness between the liquid inlet wall and the atomizing surface is 0.2mm to 1mm;

and/or the second liquid guide part is sheet-shaped or block-shaped, and the thickness of the second liquid guide part is 1-30 mm along the thickness direction of the heating body.

7. The atomizing core of claim 2, wherein the liquid guiding body is surrounded and arranged to form a hollow through ventilation channel, the atomizing surface is an end face of the liquid guiding body, ventilation holes penetrating through the first surface and the second surface are further formed in the heating body, the aperture of each ventilation hole is 2 mm-10 mm, a plurality of ventilation holes are arranged around the ventilation holes, and the ventilation holes are correspondingly communicated with the ventilation channel.

8. The atomizing core of any of claims 2-7, further comprising a first positive leg and a first negative leg, the heat-generating body further having opposing first and second ends, the first positive leg being electrically connected to the first end, the first negative leg being electrically connected to the second end;

Or the heating body is also provided with a first end part and a second end part which are opposite, wherein the first end part is provided with a first metal coating, and the second end part is provided with a second metal coating;

or, the atomizing core further comprises a first positive electrode wire leg and a first negative electrode wire leg, the heating body further comprises a first end part and a second end part which are opposite, a first metal coating is arranged on the first end part, a second metal coating is arranged on the second end part, the first positive electrode wire leg is welded with the first metal coating, and the first negative electrode wire leg is welded with the second metal coating.

9. The atomizing core of claim 1, wherein the liquid guide body is a hollow cylindrical structure, the atomizing surface is an inner wall surface of the liquid guide body, the heat generating body is disposed circumferentially and forms a hollow through air passage, and the heat generating body has opposite outer and inner peripheral surfaces through which the respective air holes penetrate, the outer peripheral surface being in close contact with the atomizing surface.

10. The atomizing core of claim 9, wherein the heat-generating body has an open ring shape in a radial cross section thereof, the atomizing core further comprising a first positive electrode leg and a first negative electrode leg, one end of the heat-generating body in a circumferential direction thereof being electrically connected to the first positive electrode leg, the other end being electrically connected to the first negative electrode leg, or one end of the heat-generating body in an axial direction thereof being electrically connected to the first positive electrode leg, the other end being electrically connected to the first negative electrode leg;

Or, the heat-generating body includes first portion that generates heat and second portion that generates heat, first portion that generates heat with the second portion that generates heat is followed the radial cross section of heat-generating body is the open loop shape, the atomizing core still includes first anodal line foot, first negative pole line foot, second anodal line foot and second negative pole line foot, first portion that generates heat along its circumference one end with first anodal line foot electricity is connected, the other end with first negative pole line foot electricity is connected, second portion that generates heat along its circumference one end with second anodal line foot electricity is connected, the other end with second negative pole line foot electricity is connected, first portion that generates heat is connected with first anodal line foot's one end with second portion that generates heat is connected with second anodal line foot's one end phase concatenation, first portion that generates heat is connected with first negative pole line foot's one end with second portion that generates heat is connected with second negative pole line foot's one end phase concatenation.

11. The atomizing core of claim 9, wherein the heat-generating body has a closed-loop shape in a radial cross section thereof, the atomizing core further comprising a first positive terminal pin and a first negative terminal pin, one end of the heat-generating body in an axial direction thereof being electrically connected to the first positive terminal pin, the other end being electrically connected to the first negative terminal pin;

Or the radial cross section of the heating body is in a closed ring shape, the atomizing core further comprises a first ring electrode, a second ring electrode, a third ring electrode, a first positive electrode wire leg, a first negative electrode wire leg and a second positive electrode wire leg, the first ring electrode is sleeved at one axial end of the heating body, the second ring electrode is sleeved at the other axial end of the heating body, the third ring electrode is sleeved at the peripheral wall of the heating body and is positioned between the first ring electrode and the second ring electrode, and the first ring electrode and the second ring electrode are all spaced from the third ring electrode along the axial direction of the heating body; the first positive electrode wire leg is electrically connected with the first annular electrode, the second positive electrode wire leg is electrically connected with the second annular electrode, and the first negative electrode wire leg is electrically connected with the third annular electrode.

12. The atomizing core of any of claims 1-2, 7, 9-11, wherein the liquid-conducting material comprises any of porous ceramic, fiber cotton, nonwoven, and blend fiber.

13. An atomizing core as set forth in any one of claims 1 to 7, 9 to 11, wherein said heat generating body has a thickness of 0.1mm to 2.5mm;

And/or the aperture of each vent hole is 0.02 mm-1.4 mm;

and/or the distribution density of the vent holes is 15% -40%;

and/or, the ventilation holes are uniformly distributed at intervals;

and/or the distance between two adjacent vent holes is 0.03 mm-4.2 mm.

14. An atomizer comprising an outer housing and an atomizing core according to any one of claims 1 to 13, wherein the atomizing core is mounted in the outer housing, an air flow channel communicating with the outside and a liquid storage cavity for storing atomized liquid are provided in the outer housing, the heating element is located on an air flow path of the air flow channel, and the liquid guiding body is communicated with the liquid storage cavity.

15. An electronic atomizing device comprising a battery assembly and the atomizer of claim 14, said battery assembly being electrically connected to said heat generating body.