CN220109133U - 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: the porous ceramic liquid guide body has a porosity of 45% -75%, and is provided with an atomization surface, wherein the atomization surface is divided into a first area and a second area connected with the first area; the porous heating body is made of a porous electric heating material and covers the first area, and the porosity of the porous heating body is 10% -40%; and a liquid sealing layer which at least covers the second area, wherein the porosity of the liquid sealing layer is smaller than or equal to 40%, the porous ceramic liquid guiding body with higher porosity and the porous heating body and the liquid sealing layer with lower porosity which are respectively covered in the first area and the second area of the atomization surface of the porous ceramic liquid guiding body are adopted in the technical scheme, and the atomization taste of the atomization core can be effectively improved while the liquid leakage of the atomization surface of the porous ceramic liquid guiding body is prevented.

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, material such as therapeutic medicine can be collectively referred to electronic atomizing device, electronic atomizing device generally is including the atomizer that is used for producing the aerosol and be used for providing the battery pack of electric energy for the atomizer, atomizer on the market at present usually includes shell body and atomizing core, be equipped with intake duct in the shell body, the air outlet way and be used for storing the stock solution storehouse of atomized liquid, the intake duct is linked together with the air outlet way and forms the air current passageway, atomizing core generally includes interconnect's liquid and heat-generating body, the atomizing core is installed on the circulation route of air current passageway and is linked together with the stock solution storehouse. The atomization process of the atomizer is generally as follows: atomized liquid flows into the liquid guide body of the atomization core from the liquid storage bin, the atomized liquid is atomized under the heating effect of the heating body to form aerosol which can be sucked by a user, when the user sucks, air flow is formed on a flow path between the air inlet channel and the air outlet channel, the aerosol is taken away when the air flow flows through the heating body, and finally the aerosol flows out of the air outlet channel to the oral cavity of the user along with the air flow to be sucked by the user. The atomizing core, which is the core component of the atomizer, has been the focus of research by those skilled in the art.

In the related art, the ceramic atomizing core using the porous ceramic material as the liquid guiding body can provide a better suction taste for users, so that the ceramic atomizing core is widely applied to the electronic atomizing device, wherein one of the important factors affecting the atomizing taste of the ceramic atomizing core is the liquid guiding performance of the porous ceramic liquid guiding body, in general, the better the liquid guiding performance of the porous ceramic liquid guiding body is, the better the wettability of the heating body is (i.e. the heating body can be fully contacted with the atomized liquid), the higher the reduction degree of aerosol generated by heating the atomized liquid by the heating body is, and the better the atomizing taste is. One of the main factors affecting the liquid guiding performance of the porous ceramic liquid guiding body is the porosity of the porous ceramic liquid guiding body, at present, in order to achieve both the liquid guiding performance and the liquid locking performance of the porous ceramic liquid guiding body, the porosity of the porous ceramic liquid guiding body is generally controlled to be about 45%, when the porosity of the porous ceramic liquid guiding body exceeds 45%, the liquid guiding performance of the porous ceramic liquid guiding body can be improved, but the liquid locking performance of the porous ceramic liquid guiding body correspondingly reduces, so that the risk of liquid leakage easily occurs on an atomization surface (the atomization surface is the surface connected with a heating body in the porous ceramic liquid guiding body) of the porous ceramic liquid guiding body, particularly when a user performs suction with force, a certain negative pressure is formed at the atomization surface of the porous ceramic liquid guiding body by high-speed airflow, so that the pressure difference between a liquid storage bin and the atomization surface is increased, and the liquid supplying speed of the atomization liquid guiding body in the liquid storage bin is further increased, and therefore the risk of liquid leakage occurs at the atomization surface of the porous ceramic liquid guiding body is increased, and therefore the problem of atomizing core is effectively solved under the premise that the surface of guaranteeing no liquid leakage of the porous ceramic liquid guiding body is not atomized, and the problem of the atomizing core is effectively solved in the art.

Disclosure of Invention

The utility model mainly aims to provide an atomization core, an atomizer and an electronic atomization device, which can effectively improve the atomization taste of the atomization core on the premise of ensuring that the atomization surface of a porous ceramic liquid guide does not leak.

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

the porous ceramic liquid guide body has a porosity of 45% -75%, and is provided with an atomization surface, wherein the atomization surface is divided into a first area and a second area;

the porous heating body is made of a porous electric heating material and covers the first area, and the porosity of the porous heating body is 10% -40%; and

and a liquid sealing layer which at least covers the second area, wherein the porosity of the liquid sealing layer is less than or equal to 40%.

In an alternative embodiment, the material of the liquid-sealing layer includes any one of porous metal, dense metal, porous conductive ceramic, porous ceramic, and dense ceramic, and the liquid-sealing layer is at least partially insulated from the porous heat generating body.

In an alternative embodiment, the material of the porous heating element comprises any one of porous metal and porous conductive ceramic.

In an alternative embodiment, the porous heat-generating body has a porosity of 20% to 40%.

In an optional embodiment, the porous heating element is in a strip shape, the liquid sealing layer comprises a first electrode layer, a second electrode layer, a first covering layer and a second covering layer, the first electrode layer, the first covering layer, the second electrode layer and the second covering layer are sequentially arranged along the circumferential direction of the atomization surface and surround the porous heating element, the material of the first electrode layer comprises any one of compact metal, porous metal and porous conductive ceramic, the material of the second electrode layer comprises any one of compact metal, porous metal and porous conductive ceramic, one end of the porous heating element is connected with the first electrode layer, the other end of the porous heating element is connected with the second electrode layer, and the porous heating element is between the first covering layer, the porous heating element and the second covering layer, between the first electrode layer and the first covering layer, between the first covering layer and the second electrode layer, between the second electrode layer and the second covering layer, and between the second electrode layer and the second covering layer are mutually insulated.

In an alternative embodiment, the porous heat-generating body is in the shape of a straight strip.

In an alternative embodiment, the porous heat-generating body is arranged in a meandering manner.

In an alternative embodiment, the atomizing core further comprises a first electrode leg electrically connected to the first electrode layer and a second electrode leg electrically connected to the second electrode layer.

In an alternative embodiment, the porous heating element and the liquid sealing layer are made of porous metal, the porosity of the porous heating element is the same as that of the liquid sealing layer, the porous heating element and the liquid sealing layer are electroplated on the atomization surface, and gaps are formed between the porous heating element and the first covering layer, between the porous heating element and the second covering layer, between the first electrode layer and the first covering layer, between the first covering layer and the second electrode layer, between the second electrode layer and the second covering layer, and between the second covering layer and the first electrode layer.

In an alternative embodiment, the porous ceramic liquid guide has a hollow through air passage, an air inlet port of the air passage is positioned on the atomization surface, and the porous heating element is arranged around the air inlet port.

In an alternative embodiment, the porous heat-generating body is arranged in a meandering manner.

In an alternative embodiment, the atomizing core further comprises a first electrode wire leg and a second electrode wire leg which are arranged at opposite intervals, and the first electrode wire leg and the second electrode wire leg are electrically connected with the porous heating body.

In an alternative embodiment, the porous heating element and the liquid sealing layer are made of porous metal, the porosity of the porous heating element is the same as that of the liquid sealing layer, the porous heating element and the liquid sealing layer are electroplated on the atomization surface, and a gap is formed between the porous heating element and the liquid sealing layer.

In an alternative embodiment, the liquid sealing layer comprises a first masking layer arranged around the air inlet port and a second masking layer arranged around the air inlet port, and the porous heating body is arranged between the first masking layer and the second masking layer.

In an alternative embodiment, the porous ceramic liquid conductor has a porosity of 50% to 70%.

In an alternative embodiment, the porous ceramic liquid conducting material is an aluminum silicate porous ceramic.

In an alternative embodiment, the porous ceramic liquid guiding body further has an outer peripheral surface and a liquid inlet surface opposite to the atomizing surface, the outer peripheral surface being located between the atomizing surface and the liquid inlet surface and being circumferentially arranged along the porous ceramic liquid guiding body, the outer peripheral surface being covered with the liquid sealing layer.

In an alternative embodiment, the atomizing core further includes a silica gel sleeve, the porous ceramic liquid guiding body further has a peripheral surface and a liquid inlet surface opposite to the atomizing surface, the peripheral surface is located between the atomizing surface and the liquid inlet surface and is circumferentially arranged along the porous ceramic liquid guiding body, and the silica gel sleeve is sleeved on the peripheral surface of the porous ceramic liquid guiding body.

To achieve the above object, the present utility model also provides an atomizer comprising:

the shell is internally provided with a liquid storage bin for storing atomized liquid, and an air inlet channel and an air outlet channel which are respectively communicated with the outside, wherein the air inlet channel is communicated with the air outlet channel; and

the atomization core according to any one of the embodiments, wherein the atomization core is installed in the housing, the porous ceramic liquid guide body is communicated with the liquid storage bin, and the porous heating element is located on a communication path between the air inlet channel and the air outlet channel.

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 porous heating element.

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

in the technical scheme of the utility model, the porous ceramic liquid guide with the porosity of 45-75% is adopted, the atomization surface of the porous ceramic liquid guide is divided into a first area and a second area connected with the first area, wherein the first area is covered with a porous heating element which is made of porous electric heating materials and has the porosity of 10-40%, and the second area is covered with a liquid sealing layer with the porosity of less than or equal to 40%, so that the atomization surface of the porous ceramic liquid guide is covered by the porous heating element with the porosity of lower (below 40%) and the liquid sealing layer, even if the porous ceramic liquid guide adopts the porous heating element with the porosity of higher (above 45%) to improve the liquid guide performance of the porous ceramic liquid guide, the porous heating element with the porosity of lower and the liquid sealing layer can be utilized to effectively prevent the atomized liquid stored in the porous ceramic liquid guide from leaking from the atomization surface, and the porous ceramic liquid guide has the better liquid guide performance because the porosity of 45-75%, so that the porous ceramic liquid guide has the better liquid guide performance, the porous heating element can smoothly infiltrate the porous heating element on the atomization surface, the atomized liquid can not be effectively sucked by the porous heating element, and the user can not feel the atomized liquid can be effectively improved.

In addition, because the porous heating body provided by the utility model is made of the porous electric heating material, the porous heating body has the functions of liquid guiding and integral conductive heating, so that when the atomization work is carried out, the porous heating body not only can atomize the atomized liquid in the first area of the atomization surface, but also can absorb the atomized liquid from the first area of the atomization surface into the porous heating body to atomize, thereby further improving the wettability of the porous heating body, enabling the porous heating body to generate more sufficient aerosol in the atomization process, further improving the atomization taste of the atomization core, and enabling a user to obtain better suction experience. In addition, the porous heating element is of a porous structure with the porosity of 10% -40%, so that generated aerosol can directly escape from the pores in the porous heating element, and smooth guiding-out of the aerosol is ensured, namely, the porous heating element provided by the utility model can not only effectively prevent atomized liquid stored in the porous ceramic liquid conductor from leaking out of a first area of an atomization surface, but also ensure smooth guiding-out of the aerosol and improve the atomization taste of an atomization core by setting the porosity to be 10% -40%.

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 a atomizing core according to an embodiment of the present disclosure;

FIG. 2 is a schematic view showing the area division of the atomizing surface of the porous ceramic liquid guiding body according to an embodiment of the present utility model;

FIG. 3 is an exploded view of the atomizing core of FIG. 1;

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a schematic perspective view of a atomizing core according to another embodiment of the present disclosure;

FIG. 6 is a schematic view showing the area division of the atomizing surface of the porous ceramic liquid guiding body according to another embodiment of the present utility model;

FIG. 7 is a front view of FIG. 5;

FIG. 8 is an exploded view of the atomizing core of FIG. 5;

FIG. 9 is a cross-sectional view of the atomizer at a first viewing angle in accordance with an embodiment of the present utility model;

FIG. 10 is a cross-sectional view of the atomizer at a second viewing angle in accordance with an embodiment of the present utility model;

Fig. 11 is a cross-sectional view of a nebulizer in another embodiment of the utility model.

Reference numerals illustrate:

110. a porous ceramic liquid guide; 111. an atomizing surface; 112. a first region; 113. a second region; 114. an air passage; 115. an outer peripheral surface; 116. a liquid inlet surface;

120. a porous heating element;

130. a liquid sealing layer; 131. a first electrode layer; 132. a second electrode layer; 133. a first masking layer; 134. a second masking layer;

140. a slit;

150. a first electrode leg;

160. a second electrode leg;

170. a silica gel sleeve;

100. an atomizing core; 200. a housing; 210. a liquid storage bin; 220. an air inlet channel; 230. an air outlet channel; 240. an auxiliary airway; 250. and a liquid inlet hole.

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, 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.

As shown in fig. 1-8, an embodiment of the present utility model provides an atomizing core 100, the atomizing core 100 comprising: porous ceramic liquid conductor 110, porous heat generator 120, and liquid sealing layer 130.

The porosity of the porous ceramic liquid guide 110 is 45% -75%, the porous ceramic liquid guide 110 has an atomization surface 111, and the atomization surface 111 is divided into a first region 112 and a second region 113 connected to the first region 112 (as shown in fig. 2 and 6). The porous heat-generating body 120 is made of a porous electric heating material, which covers the first region 112 of the atomization surface 111, and the porosity of the porous heat-generating body 120 is 10% -40%. Liquid seal layer 130 at least covers second region 113, and the porosity of liquid seal layer 130 is less than or equal to 40%.

In this embodiment, it is understood that the other area of the atomizing surface 111 of the porous ceramic liquid guiding body 110 than the first area 112 may be regarded as the second area 113, and in particular implementation, the first area 112 and the second area 113 may be sequentially arranged along a specified direction of the atomizing surface 111 of the porous ceramic liquid guiding body 110 (such as a width direction of the atomizing surface 111 or a length direction of the atomizing surface 111), or the second area 113 may be arranged to surround the first area 112, and the specific position distribution of the first area 112 and the second area 113 on the atomizing surface 111 is not particularly limited in this embodiment. In addition, in the embodiment, the porous heating element 120 and the liquid sealing layer 130 may be coated on the atomization surface 111 of the porous ceramic liquid guiding body 110 by embedding, thick film printing, electroplating, etc., so long as the usage requirement can be satisfied, and the embodiment is not limited in particular to the specific manner in which the porous heating element 120 is coated on the first region 112 of the atomization surface 111 and the specific manner in which the liquid sealing layer 130 is coated on the second region 113 of the atomization surface 111.

In this embodiment, in the implementation, the material of the porous heating element 120 may be porous metal, or may be porous conductive ceramic, or may be any other type of porous electrothermal material, so long as the material can meet the use requirement, which is not particularly limited in this embodiment. The porous metal can be any one of stainless steel metal fiber, iron-chromium-aluminum metal fiber, titanium-nickel metal fiber, hastelloy fiber, microporous foam nickel and porous titanium.

In this embodiment, in the implementation, the material of the sealing liquid layer 130 may be a porous material with pores, for example, the porous material may be a porous metal, a porous conductive ceramic, a porous ceramic, or the like, the material of the sealing liquid layer 130 may also be a solid material without pores, for example, the solid material may be a dense metal (for example, one or more of silver, copper, aluminum, nickel, an aluminum alloy, and stainless steel), a dense ceramic (for example, may be an alumina ceramic, an aluminum nitride ceramic, a silicon carbide ceramic, a silicon nitride ceramic, or the like), or the like, or may also include both the porous material and the solid material, for example, the sealing liquid layer 130 may be configured as a composite layer structure formed by stacking a porous material layer (for example, a stainless steel metal fiber layer) and a solid material layer (for example, a dense pure silver layer), so long as the material of the sealing liquid layer 130 is capable of meeting the use requirement. It is understood herein that when the material of the liquid sealing layer 130 is a porous material having pores, the porosity of the liquid sealing layer 130 is greater than zero and equal to or less than 40%, and when the material of the liquid sealing layer 130 is a solid material having no pores, the porosity of the liquid sealing layer 130 is zero.

In the above technical solution of the present embodiment, since the atomization surface 111 of the porous ceramic liquid guiding body 110 is covered by the porous heating body 120 and the sealing liquid layer 130 with lower porosity (below 40%), even if the porous ceramic liquid guiding body 110 adopts higher porosity (above 45%) to improve its own liquid guiding performance, the porous heating body 120 and the sealing liquid layer 130 with lower porosity can be used to effectively block the atomized liquid stored in the porous ceramic liquid guiding body 110 from leaking from the atomization surface 111, and since the porosity of the porous ceramic liquid guiding body 110 is 45% -75%, the porosity is higher, the porous ceramic liquid guiding body 110 has better liquid guiding performance, so that sufficient atomized liquid can be smoothly provided for the porous heating body 120 located on the atomization surface 111, so that the wettability of the porous heating body 120 can be effectively improved, and the atomized taste of the atomized core 100 can be effectively improved on the premise of ensuring that the atomized surface 111 of the porous ceramic liquid guiding body 110 does not leak, so that a user can obtain better suction experience.

In addition, because the porous heating body 120 is made of the porous electric heating material, the porous heating body 120 has the functions of liquid guiding and integral conductive heating, so that when the atomization work is carried out, the porous heating body 120 not only can atomize the atomized liquid in the first area 112 of the atomization surface 111, but also can absorb the atomized liquid from the first area 112 of the atomization surface 111 into the self body for atomization, thereby further improving the wettability of the porous heating body 120, enabling the porous heating body 120 to generate more sufficient aerosol in the atomization process, further improving the atomization taste of the atomization core 100, and enabling a user to obtain better suction experience. In addition, since the porous heating element 120 has a porous structure with a porosity of 10% -40%, the generated aerosol can directly escape from the pores in the porous heating element 120, so that smooth guiding of the aerosol is ensured, that is, the porous heating element 120 provided by the utility model can not only effectively prevent the atomized liquid stored in the porous ceramic liquid guiding body 110 from leaking out of the first region 112 of the atomization surface 111, but also ensure smooth guiding of the aerosol and improve the atomization taste of the atomization core 100 by setting the porosity to 10% -40%.

Further, in some embodiments, the liquid sealing layer 130 is at least partially insulated from the porous heating element 120, so that the risk of a short circuit phenomenon between the porous heating element 120 and the liquid sealing layer 130 can be reduced during the power-on operation of the atomizing core 100. In this embodiment, it is understood that when the material of the liquid sealing layer 130 is an insulating material such as porous ceramic or dense ceramic, the liquid sealing layer 130 may be entirely insulated from the porous heat generating body 120 (in this case, the liquid sealing layer 130 and the porous heat generating body 120 may be in contact with each other), whereas when the material of the liquid sealing layer 130 is a conductive material such as porous metal, dense metal, or porous conductive ceramic, the liquid sealing layer 130 may be entirely insulated from the porous heat generating body 120, or may be only partially insulated from the porous heat generating body 120, so long as the effect of reducing the risk of occurrence of a short circuit phenomenon between the porous heat generating body 120 and the liquid sealing layer 130 can be achieved. In addition, in some specific application scenarios, when the material of the liquid sealing layer is a conductive material such as porous metal, dense metal, porous conductive ceramic, etc., the manner in which the liquid sealing layer 130 is insulated from the porous heating element 120 may be flexibly selected according to actual needs, for example, a gap may be provided between the liquid sealing layer 130 and the porous heating element 120 to realize insulation, or an insulating layer may be provided at a contact surface between the liquid sealing layer 130 and the porous heating element 120, where the insulating layer may be an insulating paint, or a micro-arc oxidation treatment may be performed on a contact surface of at least one of the porous heating element 120 and the liquid sealing layer 130 to form the insulating layer.

In some embodiments, the porosity of the porous heat-generating body 120 may be further preferably 20% -40%, so that by increasing the porosity of the porous heat-generating body 120 as much as possible in the range of 0-40%, it is advantageous to increase the air permeability of the porous heat-generating body 120, so that the aerosol generated by atomization of the atomized liquid can be more smoothly guided out from the pores of the porous heat-generating body 120 while the first region 112 of the atomizing surface 111 of the porous ceramic liquid guide 110 is free from liquid leakage.

In the atomizing core 100 provided in the embodiment of the present utility model, it is understood that the specific shape of the porous ceramic liquid guide 110 may be flexibly set according to actual needs, for example, as shown in fig. 1 and fig. 3, the specific shape of the porous ceramic liquid guide 110 may be set to a shape (such as a square block) without a channel structure; as another example, as shown in fig. 5 and 8, the specific shape of the porous ceramic liquid guide 110 may be a shape having a channel structure (e.g., a hollow cylindrical shape, etc.), which is not particularly limited in this embodiment. Alternatively, in some embodiments, when the specific shape of the porous ceramic liquid guide 110 is set to a shape having no channel structure, the specific structural form of the atomizing core 100 may be as follows:

Specifically, as shown in fig. 1 to 4, the porous heat-generating body 120 is in a strip shape, the liquid sealing layer 130 comprises a first electrode layer 131, a second electrode layer 132, a first masking layer 133 and a second masking layer 134, the first electrode layer 131, the first masking layer 133, the second electrode layer 132 and the second masking layer 134 are sequentially arranged along the circumferential direction of the atomization surface 111 of the porous ceramic liquid guide body 110 and surround the porous heat-generating body 120, the material of the first electrode layer 131 comprises any one of dense metal, porous metal and porous conductive ceramic, the material of the second electrode layer 132 comprises any one of dense metal, porous metal and porous conductive ceramic, one end of the porous heat-generating body 120 is connected to the first electrode layer 131, the other end is connected to the second electrode layer 132, and the porous heat-generating body 120 is insulated from the first mask layer 133, the porous heat-generating body 120 is insulated from the second mask layer 134, the first electrode layer 131 is insulated from the first mask layer 133, the first mask layer 133 is insulated from the second electrode layer 132, the second electrode layer 132 is insulated from the second mask layer 134, and the second mask layer 134 is insulated from the first electrode layer 131 (which corresponds to that the sealing layer 130 is partially insulated from the porous heat-generating body 120, and a part is electrically connected to the porous heat-generating body 120).

In this embodiment, based on the above structural design, by surrounding the porous heating element 120 with the liquid sealing layer 130, the porous heating element 120 can be arranged as close to the middle area of the atomization surface 111 as possible, so that the atomized liquid in the porous ceramic liquid guiding body 110 can be guided to the porous heating element 120 from the periphery, thereby being beneficial to enabling the atomized liquid in the porous ceramic liquid guiding body 110 to be guided to the porous heating element 120 more uniformly for atomization, and further being beneficial to reducing the risk of local dry burning of the porous heating element 120. Moreover, in some application scenarios in which the atomizing core 100 of the present embodiment is applied to an atomizer, the two electrode layers (i.e., the first electrode layer 131 and the second electrode layer 132) may be used as electrodes of the porous heating element 120 to directly contact with the anode and the cathode of the atomizer, respectively, so that it may be convenient to electrically connect the two ends of the porous heating element 120 with the anode and the cathode of the atomizer, respectively. In the embodiment, in order to make the first electrode layer 131 and the second electrode layer 132 be used as electrodes of the porous heating element 120, the porous heating element 120 may be made of a material with a higher resistivity and two electrode layers made of a material with a lower resistivity, for example, a porous alloy material (such as stainless steel metal fiber, iron-chromium-aluminum metal fiber, etc.) may be selected as the material of the porous heating element 120, and pure metal materials (such as copper, aluminum, silver, gold, etc.) may be selected as the material of the two electrode layers; it may also be achieved by setting the cross-sectional areas of the two electrode layers to be larger than the cross-sectional area of the porous heat-generating body 120 in the flow direction of the current (for example, it may be achieved by increasing the thicknesses of the two electrode layers in particular), which is not particularly limited in this embodiment.

In this embodiment, in the implementation, the materials selected for the first electrode layer 131, the second electrode layer 132, the first mask layer 133 and the second mask layer 134 may be the same or different, and the porosities selected may be the same or different, so long as the requirements of use can be satisfied. In addition, it should be noted that, in the usage scenario of the atomizing core 100 of the present embodiment applied to an atomizer, when the porous ceramic liquid guide 110 and the air passage in the atomizer are disposed along the same axis, in order to ensure that the air flow in the air passage can smoothly carry away the aerosol generated by the porous heating element 120, an adaptive adjustment design is generally required for the air passage in the atomizer, as shown in fig. 1, 9 and 10, an auxiliary air passage 240 that is communicated with the upper air passage and the lower air passage (the upper air passage above the porous ceramic liquid guide 110 is the air outlet passage 230, and the lower air passage below the porous ceramic liquid guide 110 is the air inlet passage 220) needs to be additionally designed on the radial side of the porous ceramic liquid guide 110.

Further, as shown in fig. 1 and 3, in some embodiments, the porous heating element 120 may be specifically in a straight strip shape, or may be in a curved strip shape that is roundabout, preferably, the porous heating element 120 is roundabout and disposed on the atomization surface 111 of the porous ceramic liquid guiding body 110, and the roundabout strip-shaped porous heating element 120 has a larger resistance compared with a linear strip-shaped heating element, so that the porous heating element 120 can generate more heat in the same time, and the length of the porous heating element 120 can be increased to increase the contact area between the porous heating element and the atomization surface 111 of the porous ceramic liquid guiding body 110, so that the porous heating element 120 can heat and atomize more atomized liquid in unit time, thereby being beneficial to improving the amount of aerosol generated by the atomizing core 100 in unit time.

With continued reference to fig. 1 and 3, in some embodiments, the atomizing core 100 further includes a first electrode lead 150 and a second electrode lead 160, the first electrode lead 150 is electrically connected to the first electrode layer 131, and the second electrode lead 160 is electrically connected to the second electrode layer 132. Thus, by setting two wire pins, when the atomizing core 100 of the embodiment is applied to an atomizer, two electrode layers can be conveniently and electrically connected with the anode and the cathode of the atomizer in an indirect manner, so that the position layout of the atomizing core 100 in the atomizer is more flexible.

Preferably, as shown in fig. 3, the materials of the porous heat-generating body 120 and the liquid sealing layer 130 are porous metals, the porosity of the porous heat-generating body 120 is the same as that of the liquid sealing layer 130, the porous heat-generating body 120 and the liquid sealing layer 130 are electroplated on the atomization surface 111 of the porous ceramic liquid guide 110, and gaps 140 exist between the porous heat-generating body 120 and the first covering layer 133, between the porous heat-generating body 120 and the second covering layer 134, between the first electrode layer 131 and the first covering layer 133, between the first covering layer 133 and the second electrode layer 132, between the second electrode layer 132 and the second covering layer 134, and between the second covering layer 134 and the first electrode layer 131.

In this embodiment, as shown in fig. 3 and 4, when the porous heating element 120 and the sealing liquid layer 130 are disposed on the atomization surface 111 of the porous ceramic liquid guide 110, only a metal layer with the same material and the same porosity is electroplated on the atomization surface 111 of the porous ceramic liquid guide 110, and then the gaps 140 are engraved on the metal layer according to the preset shapes and the relative positions of the porous heating element 120, the first electrode layer 131, the second electrode layer 132, the first masking layer 133 and the second masking layer 134, so that the porous heating element 120 and the sealing liquid layer 130 can be processed and molded, which is quite convenient to process and is beneficial to reducing the manufacturing cost of the atomizing core 100.

Alternatively, in another exemplary embodiment of the present utility model, when the specific shape of the porous ceramic liquid guide 110 is set to a shape having a channel structure, the specific structural form of the atomizing core 100 may be as follows:

specifically, as shown in fig. 5 to 8, the porous ceramic liquid guide 110 has a hollow through air passage 114, the air inlet port of the air passage 114 of the porous ceramic liquid guide is located on the atomizing surface 111 of the porous ceramic liquid guide 110, and the porous heat generating body 120 is disposed around the air inlet port of the air passage 114. In this way, by setting the specific shape of the porous ceramic liquid guiding body 110 to be a shape with a channel structure, compared with setting the specific shape of the porous ceramic liquid guiding body 110 to be a shape without a channel structure, in the use scenario of applying the atomizing core 100 of the embodiment to an atomizer, even if the porous ceramic liquid guiding body 110 and the air channel in the atomizer are arranged along the same axis, the upper air channel and the lower air channel in the atomizer can be communicated through the air channel 114 in the porous conductive ceramic, so that the auxiliary air channel 42 does not need to be additionally designed, the air flow in the air channel can be conveniently brought away from the aerosol generated by the porous heating body 120, thereby not only simplifying the structure of the air channel, reducing the structural design cost of the atomizer, but also shortening the length of the whole air channel, further shortening the conveying distance from the aerosol to the outside, and avoiding the influence on the sucking taste of the user due to the fact that the aerosol temperature is reduced or even liquefied in the process of conveying the whole air channel to the outside for sucking by the user. In addition, by disposing the porous heat generating body 120 around the air inlet port of the air duct 114 (illustratively, the porous heat generating body 120 is in a closed loop shape), the contact area between the porous heat generating body 120 and the atomization surface 111 of the porous ceramic liquid guide body 110 can be increased, so that the porous heat generating body 120 can heat and atomize more atomized liquid in a unit time, thereby being beneficial to improving the amount of aerosol which can be generated in the unit time.

With continued reference to fig. 8, in some embodiments, in order to further increase the resistance of the porous heat-generating body 120 and the contact area between the porous heat-generating body 120 and the atomizing surface 111 of the porous ceramic liquid guide body 110, so that the porous heat-generating body 120 can heat and atomize more atomized liquid in a unit time, the amount of aerosol that can be generated by the atomizing core 100 in a unit time is further increased, and preferably, the porous heat-generating body 120 is disposed around the air inlet of the air duct 114 in a roundabout manner.

Optionally, referring to fig. 5, in some embodiments, the atomizing core 100 further includes a first electrode lead 150 and a second electrode lead 160 disposed at opposite intervals, and each of the first electrode lead 150 and the second electrode lead 160 is electrically connected to the porous heating element 120. Thus, by setting two wire legs, when the atomizing core 100 of the embodiment is applied to an atomizer, the porous heating element 120 can be conveniently electrically connected with the anode and the cathode of the atomizer, and moreover, compared with the case that the two ends of the porous heating element 120 are directly electrically contacted with the anode and the cathode of the atomizer, the risk of burning out the anode and the cathode of the atomizer due to the direct contact with the porous heating element 120 with higher temperature can be reduced due to the setting of the wire legs.

Further, referring to fig. 5 and 8, in some embodiments, the materials of the porous heat-generating body 120 and the liquid sealing layer 130 are porous metals, the porosity of the porous heat-generating body 120 is the same as that of the liquid sealing layer 130, the porous heat-generating body 120 and the liquid sealing layer 130 are electroplated on the atomization surface 111 of the porous ceramic liquid guide 110, and a gap 140 is formed between the porous heat-generating body 120 and the liquid sealing layer 130.

In this embodiment, when the porous heating element 120 and the liquid sealing layer 130 are disposed on the atomization surface 111 of the porous ceramic liquid guiding body 110, a metal layer with the same material and the same porosity is only required to be electroplated on the atomization surface 111 of the porous ceramic liquid guiding body 110, and then the slit 140 is engraved on the metal layer according to the preset shape and the relative position of the porous heating element 120 and the liquid sealing layer 130, so that the processing and forming of the porous heating element 120 and the liquid sealing layer 130 can be completed, which is quite convenient to process and is beneficial to reducing the manufacturing cost of the atomizing core 100. Alternatively, referring to fig. 6-8, in some embodiments, the second region 113 of the atomizing surface 111 of the porous ceramic liquid guide 110 may be further divided into two sub-regions, which are respectively disposed on the inner side and the outer side of the annular porous heat generator 120, that is, the two sub-regions jointly surround the first region 112 of the atomizing surface 111 of the porous ceramic liquid guide 110. Correspondingly, the liquid sealing layer 130 includes an annular first covering layer 133 and an annular second covering layer 134, where the first covering layer 133 and the second covering layer 134 respectively cover two sub-areas of the second area 113 (i.e., the first covering layer 133 and the second covering layer 134 are all disposed around the air inlet port of the air duct 114), and the porous heating body 120 is located between the first covering layer 133 and the second covering layer 134, so that the porous heating body 120 can be disposed as far as possible from the inner edge and the outer edge of the atomizing surface 111, so that the atomized liquid in the porous ceramic liquid guide 110 can be guided to the porous heating body 120 from the periphery, and further, the atomized liquid in the porous ceramic liquid guide 110 can be more uniformly guided to the porous heating body 120 for atomization, thereby being beneficial to reducing the risk of local dry burning of the porous heating body 120. In this embodiment, it should be noted that, in the implementation, the materials selected for the first mask layer 133 and the second mask layer 134 may be the same or different, and the porosities selected for them may be the same or different, so long as the requirements of use can be met, which is not particularly limited in this embodiment.

Further, considering that the higher the porosity of the porous ceramic liquid guide 110 is, the better the liquid guide performance thereof is, but at the same time, the structural strength of the porous ceramic liquid guide 110 is deteriorated, that is, the liquid guide performance of the porous ceramic liquid guide 110 is proportional to the porosity, and the structural strength of the porous ceramic liquid guide 110 is inversely proportional to the porosity, the applicant has further studied to find that, when the porosity of the porous ceramic liquid guide 110 is further set to 50% -70%, the liquid guide performance and the structural strength of the porous ceramic liquid guide 110 can be well combined, so that the porous ceramic liquid guide 110 has the better liquid guide performance and also has the better structural strength, and based on the finding that, in an exemplary embodiment of the present utility model, the porosity of the porous ceramic liquid guide 110 is preferably 50% -70%.

Further, in some embodiments, the material of the porous ceramic liquid guiding body 110 may be preferably aluminum silicate porous ceramic, and since the aluminum silicate porous ceramic has a greater structural strength than other porous ceramics with the same porosity, the aluminum silicate porous ceramic is selected as the material of the porous ceramic liquid guiding body 110, which is beneficial to improving the structural strength of the porous ceramic liquid guiding body 110.

Optionally, as shown in fig. 3, in some embodiments, the porous ceramic liquid guiding body 110 further has an outer peripheral surface 115 and a liquid inlet surface 116 opposite to the atomizing surface 111 of the porous ceramic liquid guiding body 110, the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 is located between the atomizing surface 111 and the liquid inlet surface 116 and is circumferentially disposed around the porous ceramic liquid guiding body 110, and the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 is covered with a liquid sealing layer 130 (not shown in the figure). By providing the liquid sealing layer 130 so as to cover the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 in this manner, leakage of the atomized liquid in the porous ceramic liquid guiding body 110 from the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 can be avoided.

Optionally, as shown in fig. 3, 9 and 10, in other embodiments, the atomizing core 100 further includes a silica gel sleeve 170, the porous ceramic liquid guiding body 110 further has an outer peripheral surface 115 and a liquid inlet surface 116 opposite to the atomizing surface 111 of the porous ceramic liquid guiding body 110, and the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 is located between the atomizing surface 111 and the liquid inlet surface 116 and circumferentially surrounds the porous ceramic liquid guiding body 110, and the silica gel sleeve 170 is sleeved on the outer peripheral surface 115 of the porous ceramic liquid guiding body 110. In this way, leakage of the atomized liquid from the outer peripheral surface 115 of the porous ceramic liquid guide 110 can also be avoided.

Alternatively, as shown in fig. 5 and 11, in still other embodiments, when the specific shape of the porous ceramic liquid guiding body 110 is a shape with a channel structure, the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 is disposed around the air duct 114, and at this time, the outer peripheral surface 115 of the porous ceramic liquid guiding body 110 is the liquid inlet surface of the porous ceramic liquid guiding body 110, and when the atomizing core 100 with the air duct 114 of this embodiment is applied to an atomizer, in order to avoid the atomized liquid leaking out of the outer peripheral surface 115 of the porous ceramic liquid guiding body 110, and at the same time, in order to enable the atomized liquid in the liquid storage bin 210 in the atomizer to be normally introduced into the porous ceramic liquid guiding body 110, a silicone rubber sleeve 170 with liquid inlet holes may be sleeved on the outer peripheral surface 115 of the porous ceramic liquid guiding body 110, wherein the liquid inlet holes 250 on the silicone rubber sleeve 170 are in communication with the liquid storage bin 210, and the atomized liquid in the liquid storage bin 210 can be introduced into the porous ceramic liquid guiding body 110 through the liquid inlet holes 250 on the silicone rubber sleeve 170.

Correspondingly, with combined reference to fig. 1-4 and 9-10 and with reference to fig. 5-8 and 11, an embodiment of the present utility model also provides an atomizer comprising: the housing 200 and the atomizing core 100 in any of the embodiments described above.

The housing 200 is provided with a liquid storage bin 210 for storing atomized liquid, an air inlet channel 220 and an air outlet channel 230 which are respectively communicated with the outside, and the air inlet channel 220 is communicated with the air outlet channel 230. The atomizing core 100 is installed in the housing 200, wherein the porous ceramic liquid guide 110 is communicated with the liquid storage bin 210, and the porous heating element 120 is located on a communication path between the air inlet channel 220 and the air outlet channel 230.

In this embodiment, thanks to the improvement of the atomization core 100, the atomizer of this embodiment has the same technical effects as the atomization core 100 described above, and will not be described here again.

Correspondingly, the embodiment of the utility model also provides an electronic atomization device (not shown), which comprises a battery assembly and the atomizer in any embodiment, wherein the battery assembly is electrically connected with the porous heating body 120, and is used for providing electric energy for the porous heating body 120 so as to enable the porous heating body 120 to be electrified and heated, wherein in some specific application scenarios, the battery assembly can specifically comprise a power supply source and a control circuit board, the power supply source can be a lithium battery or other type battery, the control circuit board is respectively electrically connected with the power supply source and the porous heating body 120, and the power supply source can be controlled by the control circuit board to supply power to the porous heating body 120 so that the porous heating body 120 can be electrified and heated.

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 above embodiment of the present utility model may be a medium such as tobacco tar), and the electronic atomization device of this embodiment has the same technical effects as the above atomization core 100 due to the improvement of the above atomization core 100, which is not described herein again.

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 (12)

1. An atomizing core, comprising:

the porous ceramic liquid guide body has a porosity of 45% -75%, and is provided with an atomization surface, wherein the atomization surface is divided into a first area and a second area connected with the first area;

the porous heating body is made of a porous electric heating material and covers the first area, and the porosity of the porous heating body is 10% -40%; and

and a liquid sealing layer which at least covers the second area, wherein the porosity of the liquid sealing layer is less than or equal to 40%.

2. The atomizing core of claim 1, wherein the liquid-sealing layer is of a material comprising any one of a porous metal, a dense metal, a porous conductive ceramic, a porous ceramic, a dense ceramic, and is at least partially insulated from the porous heat-generating body;

And/or the material of the porous heating element comprises any one of porous metal and porous conductive ceramic;

and/or the porosity of the porous heating element is 20% -40%.

3. The atomizing core according to claim 2, wherein the porous heat-generating body is in a strip shape, the liquid sealing layer comprises a first electrode layer, a second electrode layer, a first covering layer and a second covering layer, the first electrode layer, the first covering layer, the second electrode layer and the second covering layer are sequentially arranged along the circumferential direction of the atomizing surface and surround the porous heat-generating body, the material of the first electrode layer comprises any one of compact metal, porous metal and porous conductive ceramic, the material of the second electrode layer comprises any one of compact metal, porous metal and porous conductive ceramic, one end of the porous heat-generating body is connected with the first electrode layer, the other end of the porous heat-generating body is connected with the second electrode layer, and the porous heat-generating body is arranged between the first covering layer, between the porous heat-generating body and the second covering layer, between the first electrode layer and the first covering layer, between the first covering layer and the second electrode layer, between the second electrode layer and the second covering layer, and between the second electrode layer and the second electrode layer.

4. An atomizing core as set forth in claim 3, wherein said porous heat-generating body is curvedly disposed or said porous heat-generating body is in a straight strip shape;

and/or the atomizing core further comprises a first electrode wire leg and a second electrode wire leg, wherein the first electrode wire leg is electrically connected with the first electrode layer, and the second electrode wire leg is electrically connected with the second electrode layer;

and/or the porous heating element and the liquid sealing layer are made of porous metal, the porosity of the porous heating element is the same as that of the liquid sealing layer, the porous heating element and the liquid sealing layer are electroplated on the atomization surface, and gaps are reserved between the porous heating element and the first covering layer, between the porous heating element and the second covering layer, between the first electrode layer and the first covering layer, between the first covering layer and the second electrode layer, between the second electrode layer and the second covering layer, and between the second covering layer and the first electrode layer.

5. An atomising wick according to claim 1 or 2 wherein the porous ceramic liquid guide has a hollow through air passage with an air inlet port on the atomising surface, the porous heat generating body being arranged around the air inlet port.

6. The atomizing core of claim 5, wherein the porous heat-generating body is curvedly disposed;

and/or, the atomizing core further comprises a first electrode wire leg and a second electrode wire leg which are arranged at opposite intervals, and the first electrode wire leg and the second electrode wire leg are electrically connected with the porous heating body.

7. The atomizing core of claim 5, wherein the porous heat-generating body and the liquid-sealing layer are both of porous metal, and the porosity of the porous heat-generating body is the same as the porosity of the liquid-sealing layer, and both of the porous heat-generating body and the liquid-sealing layer are electroplated on the atomizing surface, and a gap is present between the porous heat-generating body and the liquid-sealing layer.

8. The atomizing core of claim 5, wherein the liquid seal layer includes a first masking layer disposed about the air inlet port and a second masking layer disposed about the air inlet port, the porous heat generator being positioned between the first masking layer and the second masking layer.

9. The atomizing core of any one of claims 1-4, 6-8, wherein the porous ceramic liquid guide has a porosity of 50% -70%;

And/or the porous ceramic liquid-conducting material is aluminum silicate porous ceramic.

10. The atomizing core of any one of claims 1 to 4, wherein the porous ceramic liquid guide further has an outer peripheral surface and a liquid inlet surface opposite the atomizing surface, the outer peripheral surface being located between the atomizing surface and the liquid inlet surface and circumferentially disposed about the porous ceramic liquid guide, the outer peripheral surface being covered with the liquid sealing layer;

or, the atomizing core further comprises a silica gel sleeve, the porous ceramic liquid guide body further comprises an outer peripheral surface and a liquid inlet surface opposite to the atomizing surface, the outer peripheral surface is located between the atomizing surface and the liquid inlet surface and circumferentially surrounds the porous ceramic liquid guide body, and the silica gel sleeve is sleeved on the outer peripheral surface of the porous ceramic liquid guide body.

11. An atomizer, comprising:

the shell is internally provided with a liquid storage bin for storing atomized liquid, and an air inlet channel and an air outlet channel which are respectively communicated with the outside, wherein the air inlet channel is communicated with the air outlet channel; and

the atomizing core of any one of claims 1-10, mounted within the housing, wherein the porous ceramic liquid conducting body is in communication with the liquid reservoir, and the porous heat generating body is located in a communication path between the inlet channel and the outlet channel.

12. An electronic atomizing device comprising a battery assembly and the atomizer of claim 11, said battery assembly being electrically connected to said porous heat generating body.