WO2023231533A1

WO2023231533A1 - Atomizing core and electronic atomization device

Info

Publication number: WO2023231533A1
Application number: PCT/CN2023/084231
Authority: WO
Inventors: 周宏明; 肖俊杰
Original assignee: 海南摩尔兄弟科技有限公司
Priority date: 2022-05-31
Filing date: 2023-03-28
Publication date: 2023-12-07
Also published as: CN218650307U

Abstract

An atomizing core (30), comprising: a liquid guide base body (100), provided with a liquid guide channel (120) communicated with a liquid storage cavity (21), the liquid guide channel (120) extending from one end of the liquid guide base body (100) in the length direction to the other end; a porous base body (200), arranged on the liquid guide base body (100) and absorbing an atomization medium in the liquid guide channel (120), wherein the porous base body (200) is provided with an atomization surface (210), the porosity of the porous base body (200) is higher than that of the liquid guide base body (100), and the size of the micropores in the porous base body (200) is less than the size of the liquid guide channel (120); and a heating body (300), arranged on the atomization surface (210).

Description

Atomizer core and electronic atomization device

Technical field

The present application relates to the field of electronic atomization technology, and in particular to an atomization core and an electronic atomization device including the atomization core.

Background technique

The atomizing core usually includes a porous matrix and a heating element. The heating element is attached to the porous matrix. The porous matrix is in direct contact with the liquid atomizing medium in the liquid storage chamber. The porous matrix can transmit and cache the atomizing medium. When the heating element is energized, the heating element converts electrical energy into heat, which is transferred to the porous matrix, causing the atomization medium cached in the porous matrix to atomize under the action of heat to form an aerosol. However, the traditional atomizing core cannot uniformly heat the atomizing medium, which affects the reduction degree of the atomizing medium and ultimately affects the inhalation taste of the aerosol.

Contents of the invention

One technical problem solved by this application is how to achieve uniform heating of the atomized medium.

An atomizer core includes:

The liquid-conducting base body is provided with a liquid-conducting channel for communicating with the liquid storage cavity, and the liquid-conducting channel extends from one end to the other end in the length direction of the liquid-conducting base body;

A porous matrix is disposed on the liquid-conducting matrix and absorbs the atomized medium in the liquid-conducting channel. The porous matrix has an atomization surface, and the porosity of the porous matrix is higher than the porosity of the liquid-conducting matrix. , the diameter of the micropores in the porous matrix is smaller than the diameter of the liquid conduction channel, and

The heating element is arranged on the atomization surface.

An electronic atomization device, including a housing and the above-mentioned atomization core. The liquid storage chamber is provided on the housing. The liquid storage chamber includes two liquid supply chambers spaced apart along the length direction of the liquid-conducting base body. , the liquid conducting channel is connected to the liquid supply chamber.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the invention will become apparent from the description, drawings and claims.

Description of the drawings

To better describe and illustrate embodiments and/or examples of those inventions disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the disclosed inventions, the embodiments and/or examples presently described, and the best modes currently understood of these inventions.

Figure 1 is a partial planar structural diagram of an electronic atomization device according to an embodiment;

Figure 2 is a schematic structural diagram of a planar cross-section along the length direction of the atomizing core provided in the first embodiment;

Figure 3 is a schematic structural diagram of a planar cross-section along the length direction of the atomizing core provided in the second embodiment;

Figure 4 is a schematic planar cross-sectional structural diagram along the width direction of the atomizing core provided in the third embodiment;

Figure 5 is a schematic cross-sectional structural view of the atomizing core provided in the fourth embodiment along the width direction;

Figure 6 is a schematic cross-sectional structural view of the atomizing core provided in the fifth embodiment along the width direction;

Figure 7 is a schematic structural diagram of a planar cross-section along the length direction of the atomizing core provided in the sixth embodiment;

Figure 8 is a schematic cross-sectional structural view of the atomizing core provided in the sixth embodiment after removing the heating element.

Detailed ways

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and comprehensive understanding of the disclosure of the present application.

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

Referring to FIG. 1 , an electronic atomization device 10 provided by an embodiment of the present application includes a housing 20 , an atomizing core 30 and a power supply. The power supply is connected to the housing 20. The atomization core 30 is arranged in the housing 20. A liquid storage chamber 21 is provided in the housing 20. The liquid storage chamber 21 is used to store liquid atomization medium. The atomizing core 30 can absorb and buffer the atomizing medium in the liquid storage chamber 21. When the power supply supplies power to the atomizing core 30, the atomizing core 30 can convert electrical energy into heat energy, so that the atomizing medium in the atomizing core 30 absorbs The heat atomizes to form an aerosol that can be inhaled by the user. The atomization core 30 includes a liquid conductive base 100 , a porous base 200 and a heating element 300 . The porous substrate 200 is arranged on the liquid-conducting substrate 100, and the heating element 300 is arranged on the porous substrate 200. The number of the heating elements 300 and the porous substrate 200 is equal and they correspond one to one. In Figure 1, the X-axis direction represents the length direction of the liquid-conducting matrix 100, the porous matrix 200 and the entire atomizing core 30, and the Y-axis direction represents the width direction of the liquid-conducting matrix 100, the porous matrix 200 and the entire atomizing core 30.

Referring to Figures 2, 3 and 4, in some embodiments, both the liquid-conducting matrix 100 and the porous matrix 200 can be sheet-like structures, and the liquid-conducting matrix 100 has a first surface 111 and a third surface located in its thickness direction. The two surfaces 112 , obviously, the first surface 111 and the second surface 112 are spaced apart along the thickness direction of the liquid-conducting substrate 100 and face opposite directions. At least one of the first surface 111 and the second surface 112 may form the bearing surface 110 , that is, the bearing surface 110 includes at least one of the first surface 111 and the second surface 112 , on which the porous matrix 200 is attached. on the bearing surface 110. When the bearing surface 110 only includes the first surface 111 or the second surface 112, the porous matrix 200 is attached to the first surface 111 or the second surface 112, so that the number of the porous matrix 200 and the heating element 300 is one; when bearing When the surface 110 includes both the first surface 111 and the second surface 112, the porous matrix 200 is attached to both the first surface 111 and the second surface 112, so that the number of the heating element 300 and the porous matrix 200 is both two.

The thickness of the liquid-conducting substrate 100 may range from 100 μm to 3000 μm. For example, specific values of the thickness may be 100 μm, 500 μm, or 3000 μm. The liquid-conducting matrix 100 can be made of glass, ceramics and alloy materials. The number of micropores inside the liquid-conducting matrix 100 is small and has a low porosity. For example, the porosity is less than 10%, making it difficult for the liquid-conducting matrix 100 to pass through. Its internal micropores transport and cache the atomized medium. Referring to Figure 2, a groove 121 is formed on the bearing surface 110 of the liquid-conducting base 100. The groove 121 is connected to the liquid storage chamber 21, and the atomized medium in the liquid storage chamber 21 can pass through the groove 121. transmission, so that the groove 121 forms a liquid conducting channel 120. The liquid-conducting base 100 has a first end and a second end located in the length direction. The length occupied by the groove 121 in the length direction of the liquid-conducting base 100 is equal to the total length of the liquid-conducting base 100 , so that the groove 121 serves as the liquid-conducting channel 120 . The groove 121 extends from the first end to the second end, that is, the groove 121 will penetrate the two end surfaces of the liquid-conducting base 100 respectively located on the first end and the second end. The groove 121 may extend along a straight line, so that the groove 121 is a linear groove; the groove 121 may also extend along a curve, so that the groove 121 is a curved groove. In order to ensure the transmission speed of the groove 121 to the atomized medium, the width of the groove is 10 μm to 200 μm, and the specific value of the width can be 10 μm, 100 μm or 200 μm, etc. The depth of the groove 121 is 10 μm to 200 μm, and the specific value of the depth may be 10 μm, 100 μm, or 200 μm.

Referring to FIG. 3 , in other embodiments, for example, the liquid conduction channel 120 may be a liquid conduction hole 122 . The liquid conduction hole 122 includes a main flow hole 1221 and a branch flow hole 1222 . One main flow hole 1221 may correspond to multiple branch flow holes 1222 . The main flow hole 1221 penetrates the two end surfaces of the liquid-conducting base 100 located on the first end and the second end respectively, that is, the main flow hole 1221 extends from the first end to the second end of the liquid-conducting base 100 . A plurality of branch holes 1222 are arranged at intervals along the length direction of the liquid conductive base 100. The branch holes 1222 can extend along the thickness direction of the liquid conductive base 100. The lower ends of the branch holes 1222 are connected to the main flow holes 1221, and the upper ends of the branch holes 1222 penetrate the bearing surface 110. The main flow hole 1221 is directly connected to the liquid storage chamber 21 , so that the atomized medium in the liquid storage chamber 21 passes through the main flow hole 1221 and the branch flow hole 1222 in order to be transmitted to the porous matrix 200 . For another example, the flow guide hole used as the liquid conduction channel 120 may only include the main flow hole 1221. At this time, in order to quickly transmit the atomized medium in the main flow hole 1221 to the porous matrix 200, the liquid conduction matrix 100 may have a reasonable porosity. , so that the atomized medium in the main flow hole 1221 is further transmitted to the porous matrix 200 through the micropores in the liquid-conducting matrix 100 .

In some implementations, the porous matrix 200 has a large number of micropores, and the diameter of the micropores ranges from 10 μm to 50 μm, and its specific value may be 10 μm, 20 μm, or 50 μm, etc. In view of the existence of a large number of micropores, the porous matrix 200 has a relatively high porosity, and the porosity can range from 50% to 80%, and its specific value can be 50%, 60%, or 80%, etc. Since the porous matrix 200 has a certain porosity, the porous matrix 200 absorbs and transmits the liquid atomized medium through the micropores under the action of capillary force, so the porous matrix 200 can produce a certain buffering and transmission effect on the atomized medium. The thickness of the porous matrix 200 may be 100 μm to 1500 μm. For example, specific values of the thickness may be 100 μm, 500 μm, or 1500 μm. The porous matrix 200 is made of porous ceramic material or glass material. On the one hand, the porosity of the porous matrix 200 meets the above requirements. On the other hand, the porous matrix 200 made of ceramic and glass materials has relatively stable chemical properties and can prevent the porous matrix from 200 undergoes chemical reactions at high temperatures to form harmful gases, which prevents harmful gases from being absorbed by the user and improves the safety of the atomizing core 30.

When the thickness of the porous matrix 200 is larger, the volume of the porous matrix 200 is larger, and the amount of the atomized medium buffered when the porous matrix 200 reaches a saturated state is larger. When the porosity of the porous matrix 200 is larger, the amount of atomized medium stored when the porous matrix 200 reaches a saturated state is also larger. In view of the above porosity and thickness settings of the porous matrix 200, the amount of liquid atomization medium buffered when the porous matrix 200 reaches a saturated state is 5 mg to 12 mg. For example, the amount of atomized medium buffered by the porous matrix 200 in a saturated state is: 5mg, 7mg or 12mg, etc., and the amount of atomized medium that the user needs to consume in one puffing process is also about 5mg to 12mg, so the amount of atomized medium cached by the porous matrix 200 in the saturated state is close to the user The amount of atomizing medium consumed during one puff.

Referring to Figures 2 and 3, when the porous matrix 200 is attached to only one of the first surface 111 and the second surface 112 of the liquid-conducting matrix 100, the thickness of the porous matrix 200 can be relatively large, and the thickness can be from 100 μm to 100 μm. 1500 μm; at this time, the amount of liquid atomization medium buffered by the porous matrix 200 when reaching the saturated state is 5 mg to 12 mg. Referring to FIG. 4 , when the porous matrix 200 is attached to the first surface 111 and the second surface 112 of the liquid-conducting matrix 100 at the same time, the thickness of each porous matrix 200 may be relatively small, and its thickness may be 100 μm to 600 μm; When the two porous substrates 200 respectively reach the saturated state, the total amount of liquid atomization medium buffered is 5 mg to 12 mg.

Referring to Figures 2, 3 and 4, in some embodiments, the porous matrix 200 has an atomization surface 210 and a liquid absorption surface 220. The atomization surface 210 and the liquid absorption surface 220 are two surfaces in the thickness direction of the porous matrix 200. , so that the atomizing surface 210 and the liquid absorbing surface 220 are spaced apart along the thickness direction of the porous substrate 200 and have opposite directions. The heating element 300 is disposed on the atomization surface 210, and the liquid absorbing surface 220 can be attached to the bearing surface 110 of the liquid conductive base 100 by being directly stacked. When the liquid guide channel 120 is the groove 121 When , the liquid suction surface 220 plays a capping role on the groove 121 , so that the liquid suction surface 220 absorbs the atomized medium in the groove 121 , and the atomized medium entering the liquid suction surface 220 further reaches through the micropores in the porous matrix 200 to the atomization surface 210.

The width of the porous matrix 200 can be equal to the width of the liquid-conducting matrix 100, and the length of the porous matrix 200 can be greater than the length of the liquid-conducting matrix 100; when the porous matrix 200 is attached to the liquid-conducting matrix 100, the porous matrix 200 and the liquid-conducting matrix 100 The ends in the width direction of the two are flush with each other, and the ends in the length direction of the porous substrate 200 and the liquid-conducting substrate 100 are not flush, so that the ends in the length direction of the liquid-conducting substrate 100 protrude relative to the porous substrate 200 . In other words, the middle part of the liquid-conducting matrix 100 is covered by the porous matrix 200 , and the parts near both ends of the liquid-conducting matrix 100 are not covered by the porous matrix 200 . The portions that are not covered by the porous matrix 200 will form protrusions protruding from the porous matrix 200 . The number of the protruding portions 130 is two. Obviously, the two protruding portions 130 are spaced apart along the length direction of the liquid-conducting base body 100 . Each protrusion 130 occupies a size of 150 μm to 300 μm along the length direction of the liquid-conducting substrate 100 , such that the length difference between the liquid-conducting substrate 100 and the porous substrate 200 is 300 μm to 600 μm.

In some embodiments, the heating element 300 is attached to the atomization surface 210, and the heating element 300 is electrically connected to the power supply. When the power supply supplies power to the heating element 300, the heating element 300 converts electrical energy into heat, so that the heat in the porous matrix 200 is The atomizing medium absorbs heat to atomize. The heating element 300 is made of metal, alloy or magnetic conductive material, and the heating element 300 can be in an arc shape, an S shape or a zigzag shape, etc. When the porous matrix 200 is attached to the first surface 111 and the second surface 112 of the liquid-conducting matrix 100 at the same time, the porous matrix 200 attached to the first surface 111 is recorded as the first porous matrix 231. The heating element 300 on the porous base 231 is denoted as the first heating element 310; the porous base 200 attached to the second surface 112 is denoted as the second porous base 232, and the heating element 300 attached to the second porous base 232 is Marked as the second heating element 320. Obviously, the first heating element 310 is located on the side where the first surface 111 is located, and the second heating element 320 is located on the side where the second surface 112 is located. The atomizing core 30 also includes a conductive body 400. Both ends of the conductive body 400 are electrically connected to the first heating body 310 and the second heating body 320 respectively, so that the first heating body 310 and the second heating body 320 form a series circuit. .

Referring to FIG. 5 , for example, the first porous matrix 231 , the second porous matrix 232 and the liquid-conducting matrix 100 Mounting holes are provided on both sides, and the conductive body 400 is inserted into the mounting holes, so that one end of the conductive body 400 is electrically connected to the end of the first heating element 310, and the other end of the conductive body 400 is electrically connected to the second heating element. The ends of 320 are electrically connected. At this time, the conductive body 400 will be hidden among the first porous matrix 231, the second porous matrix 232 and the liquid-conducting matrix 100, and the user cannot observe the existence of the conductive body 400. Referring to FIG. 6 , for another example, the conductive body 400 can be located outside the first porous base 231 , the second porous base 232 and the liquid-conducting base 100 , so that one end of the conductive body 400 is connected to the end of the first heating element 310 . The other end of the conductive body 400 is electrically connected to the end of the second heating element 320 . At this time, a small part of the conductive body 400 is located on the atomization surface 210 of the first porous base 231 and the second porous base 232, and most of the conductive body 400 is located on the first porous base 231 and the second porous base 232. The user will be able to observe the presence of the conductive body 400 on one side of the hole base 232 and the liquid-conducting base 100 in the width direction. When the first heating element 310 and the second heating element 320 are both made of magnetically conductive materials, when they are energized, electricity will be generated between the first heating element 310 and the second heating element 320 due to electromagnetic induction. Through electrical conduction, the first heating element 310 and the second heating element 320 can also be electrically connected. In this case, there is no need to use the conductive body 400 .

If the liquid-conducting matrix 100 is not provided and the atomized medium in the liquid storage chamber 21 is absorbed directly through the porous matrix 200, in order to ensure a reasonable transmission speed of the atomized medium in the porous matrix 200, the porous matrix 200 will inevitably be damaged. Increased thickness and volume. In view of the relatively large thickness of the porous matrix 200, it can be divided into three blocks along the thickness direction of the porous matrix 200. The first block is disposed close to the atomization surface 210, the third block is disposed close to the liquid absorbing surface 220, and the second block is disposed close to the liquid absorbing surface 220. The block is located between the first block and the third block. It can be understood that the first block and the third block are disposed close to the ends of the porous base 200 in the thickness direction, while the second block is located in the middle of the porous base 200 . Since the heating element 300 is directly arranged on the atomization surface 210, the heat generated by the heating element 300 is transmitted from the atomization surface 210 to the liquid suction surface 220. Considering the heat loss during the transmission process, within unit time, the first block absorbs The high-temperature block absorbs the most heat and is the highest temperature. The second block absorbs heat, followed by the medium-temperature block with a relatively lower temperature. The third block absorbs the least heat and is the low-temperature block with the lowest temperature.

Therefore, there is a temperature gradient in the porous matrix 200 due to uneven heat distribution, so that the atomization medium in each part of the porous matrix 200 cannot be uniformly heated and atomized. Specifically, located within the first block The atomization medium can reach the atomization temperature and atomize smoothly to form aerosol. However, some low-boiling-point components in the atomization medium in the medium-temperature zone can be atomized, while high-boiling-point components cannot be atomized. This will make it porous. The composition of the aerosol generated by each part of the atomization medium in the matrix 200 is different, which affects the reduction degree of the atomization medium and ultimately affects the inhalation taste of the aerosol.

The atomizing core 30 in the above embodiment will have at least the following three beneficial effects:

First, in view of the fact that the atomized medium in the liquid storage chamber 21 is transmitted to the porous matrix 200 through the liquid conducting channel 120 on the liquid conducting matrix 100, the caliber of the liquid conducting channel 120 is much larger than the caliber of the micropores in the porous matrix 200, so the atomization The transmission speed of the medium in the liquid conduction channel 120 will be much greater than the transmission speed in the micropores, thereby increasing the supply speed of the atomized medium in the liquid storage chamber 21 to the porous matrix 200. There is no need to increase the thickness of the porous matrix 200 to increase the mist. The supply speed of the medium is changed, and finally the thickness of the porous matrix 200 is greatly reduced. When the heating element 300 generates heat and transmits it in the porous matrix 200, the heat transmission path in the porous matrix 200 with a smaller thickness is shorter, and the heat loss is smaller during the transmission process, so that the heat is uniform along the thickness direction of the porous matrix 200. Distributed inside the porous matrix 200, the temperature gradient within the porous matrix 200 is eliminated to achieve uniform temperature distribution, thereby achieving uniform heating of the atomized medium cached everywhere in the porous matrix 200, improving the reduction degree of the atomized medium and the suction of aerosols Taste.

Second, given that the amount of atomized medium cached by all porous substrates 200 in a saturated state is 5 mg to 12 mg, it is just close to the amount of atomized medium that the user needs to consume in one puffing process. Therefore, when the user takes the last puff, the electronic atomization device 10 will pause for a period of time, and all the atomization medium on the porous base 200 will be consumed, which can effectively prevent the residual heat on the porous base 200 from affecting the remaining mist in the porous base 200. Heating the atomizing medium avoids changing the composition due to the evaporation of low-boiling point substances in the remaining atomizing medium. It can also improve the reduction degree of the atomizing medium and the inhalation taste of the aerosol.

Third, the thickness of the liquid-conducting matrix 100 and the porous matrix 200 is small, which can reduce the thickness of the entire atomizing core 30 , achieve a thinner and smaller design of the atomizing core 30 , and reduce the volume and weight of the atomizing core 30 .

Referring to Figures 7 and 8, in some embodiments, for example, both the liquid-conducting matrix 100 and the porous matrix 200 are cylindrical, the liquid-conducting matrix 100 can be a solid cylinder, the porous matrix 200 can be a hollow cylinder, and the porous matrix 200 can be is provided outside the liquid-conducting matrix 100. At this time, the inner peripheral surface of the porous matrix 200 is attached On the outer peripheral surface of the liquid-conducting base 100 , the outer peripheral surface of the porous base 200 forms the atomization surface 210 , the porous inner peripheral surface forms the liquid-absorbing surface 220 , and the outer peripheral surface of the liquid-conducting base 100 forms the bearing surface 110 . For another example, both the liquid-conducting matrix 100 and the porous matrix 200 are hollow cylindrical, and the liquid-conducting matrix 100 is set outside the porous matrix 200. At this time, the inner peripheral surface of the liquid-conducting matrix 100 is attached to the porous matrix 200. On the outer peripheral surface, the inner peripheral surface of the porous base 200 forms the atomization surface 210 , the outer peripheral surface of the porous base 200 forms the liquid absorbing surface 220 , and the inner peripheral surface of the liquid-conducting base 100 forms the bearing surface 110 .

Referring to FIG. 1 , in some embodiments, when the atomizing core 30 is installed in the housing 20 , the atomizing core 30 can be arranged transversely, that is, the length direction of the atomizing core 30 is the horizontal direction, and the liquid storage chamber 21 There are two liquid supply chambers 21a spaced apart along the length direction (that is, the horizontal direction) of the liquid guide base 100, so that the atomized medium flows in the horizontal direction through the liquid guide channel 120. For example, the length of the atomization core 30 extending into the liquid supply chamber 21a is small, so that only the protruding portion 130 of the liquid-conducting base 100 is located in the liquid supply chamber 21a, and all or part of the protruding portion 130 can be located in the liquid supply chamber 21a. . Another example is that the length of the atomizing core 30 extending into the liquid supply chamber 21a is relatively large, so that the protruding portion 130 of the liquid conductive base 100 can be entirely located in the liquid supply chamber 21a, and a part of the porous base 200 is also located in the liquid supply chamber 21a.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

An atomizing core is characterized by including:

The liquid-conducting base body is provided with a liquid-conducting channel for communicating with the liquid storage cavity, and the liquid-conducting channel extends from one end to the other end in the length direction of the liquid-conducting base body;

A porous matrix is disposed on the liquid-conducting matrix and absorbs the atomized medium in the liquid-conducting channel. The porous matrix has an atomization surface, and the porosity of the porous matrix is higher than the porosity of the liquid-conducting matrix. , the diameter of the micropores in the porous matrix is smaller than the diameter of the liquid conduction channel, and

The heating element is arranged on the atomization surface.
The atomizing core according to claim 1, characterized in that the liquid-conducting base body has a bearing surface, the porous base body also has a liquid-absorbing surface spaced apart from the atomizing surface along its thickness direction, and the bearing surface A groove is formed in a depression on the surface, and the groove forms the liquid-conducting channel. The liquid-absorbing surface is stacked on the bearing surface and covers the groove to absorb the atomized medium.
The atomization core according to claim 2, characterized in that the liquid-conducting base body is in the shape of a sheet, and the two surfaces in the thickness direction of the liquid-conducting base body are designated as the first surface and the second surface, and the load-bearing A face includes at least one of the first surface and the second surface.
The atomization core according to claim 3, characterized in that when the bearing surface includes a first surface and a second surface, the number of the heating bodies is two, and they are respectively marked as the first heating body and the second heating body. Heating element, the first heating element is located on the side of the first surface, and the second heating element is located on the side of the second surface; the atomizing core also includes a A conductive body that electrically connects the heating element and the second heating element. The conductive body is inserted into the liquid-conducting base body or is located outside the liquid-conducting base body.
The atomization core according to claim 3, characterized in that when the bearing surface includes a first surface and a second surface, the number of the heating bodies is two, and they are respectively marked as the first heating body and the second heating body. Heating element, the first heating element is located on the side of the first surface, and the second heating element is located on the side of the second surface; the first heating element and the second heating element They are all made of magnetically conductive materials. When electricity is applied, electrical conduction occurs between the first heating element and the second heating element through electromagnetic induction.
The atomization core according to claim 2, characterized in that the width of the groove is 10 μm to 200 μm, and the depth of the groove is 10 μm to 200 μm.
The atomization core according to claim 2, wherein the liquid-conducting base body is a solid cylinder, the porous base body is a hollow cylinder, the porous base body is sleeved outside the liquid-conducting base body, and the porous base body is a hollow cylinder. The inner peripheral surface of the base body is attached to the outer peripheral surface of the liquid-conducting base body, the outer peripheral surface of the porous base body forms the atomization surface, and the inner peripheral surface of the porous base body forms the liquid-absorbing surface, and the The outer peripheral surface of the liquid-conducting base forms the bearing surface.
The atomization core according to claim 2, wherein the liquid-conducting base body and the porous base body are both hollow cylinders, the liquid-conducting base body is sleeved outside the porous base body, and the liquid-conducting base body The inner peripheral surface of the porous matrix is attached to the outer peripheral surface of the porous matrix, the inner peripheral surface of the porous matrix forms the atomization surface, the outer peripheral surface of the porous matrix forms the liquid absorbing surface, and the liquid conduction surface The inner peripheral surface of the base body forms the bearing surface.
The atomizing core according to claim 1, characterized in that the liquid-conducting base body has a bearing surface, and the porous base body also has a liquid-absorbing surface spaced apart from the atomizing surface along its thickness direction, and the liquid-conducting base body has a carrying surface. The liquid channel is a liquid conduction hole, and the liquid conduction hole penetrates the bearing surface. The liquid suction surface is stacked on the bearing surface and covers the liquid conduction hole to absorb the atomized medium.
The atomization core according to claim 9, characterized in that the liquid-conducting hole includes a main flow hole and a branch hole that are connected to each other, and the main flow hole extends from the first end in the length direction of the liquid-conducting base body to the third end. At both ends, a plurality of branch holes are arranged at intervals along the length direction of the liquid-conducting base body, the branch holes penetrate the bearing surface, and the liquid-absorbing surface covers the branch holes.
The atomization core according to claim 1, characterized in that the liquid-conducting base body includes two protruding parts located in its length direction, and the two protruding parts are located within the coverage range of the porous base body. In addition, the size occupied by the protruding portion in the length direction of the liquid-conducting base body is 150 μm to 300 μm.
The atomization core according to claim 1, wherein the thickness of the liquid-conducting matrix is 100 μm to 3000 μm, and the thickness of the porous matrix is 100 μm to 1500 μm.
The atomization core according to claim 1, characterized in that the porous matrix is saturated The amount of atomized medium cached in the state is 5mg to 12mg.
The atomizing core according to claim 1, characterized in that the liquid-conducting base body is made of glass or ceramic material.
The atomizing core according to claim 1, wherein the heating element is arc-shaped, S-shaped or polygonal, and is made of metal, alloy or magnetically conductive material.
The atomization core according to claim 1, characterized in that the porosity of the liquid-conducting matrix is less than 10%, the porosity of the porous matrix is 50% to 80%, and the micropores in the porous matrix are The diameter is 10μm to 50μm.
The atomizing core according to claim 1, characterized in that the porous matrix is made of porous ceramic material or glass material.
The atomization core according to claim 1, characterized in that the widths of the porous base and the liquid-conducting base are equal, and the ends of the porous base and the liquid-conducting base in the width direction are flush with each other. .
An electronic atomization device, characterized in that it includes a housing and an atomization core according to any one of claims 1 to 18, the liquid storage chamber is provided on the housing, and the liquid storage chamber includes a There are two liquid supply chambers spaced apart in the length direction of the liquid-conducting base body, and the liquid-conducting channel is connected to the liquid supply chambers.
The electronic atomization device according to claim 19, characterized in that both ends of the porous substrate in the length direction extend into the liquid supply chamber.