TWM590368U - Vaporizing apparatus and vaporizer thereof - Google Patents

Abstract

A vaporizer comprises an absorber and a heating element. The absorber comprises a plurality of porous material layers which are laminated. The porous material layers comprise a first porous material layer and a second porous material layer. The material to be vaporized is absorbed by the first porous material layer and then transmitted to the second porous material layer. The heating element heats and vaporize the material to be vaporized in the porous material layers. The first porous material layer comprises a first porosity P1 and the second porous material layer comprises a second porosity P2, and P1>P2.

Description

Atomizing device and its atomizing element

This creation is about an atomizing device and its atomizing components.

Traditional cigarettes are very space-consuming to carry and are easily deformed and damaged. Users often bother to carry them, and they also have to worry about supplementing purchases when going out for a long time. Traditional cigarettes need a fire source to ignite, and they will produce waste from cigarette ash and cigarette butts. Therefore, ashtrays or special trash cans are required to be discarded to avoid environmental pollution or even fire accidents.

In order to solve the above problems, personal atomizing devices such as electronic cigarettes have become increasingly popular in the past decade, and have become another alternative to traditional smoking sets such as cigarettes and cigars. Especially the electronic cigarettes are exquisitely made, and young people like to use them to highlight their style. The design and configuration of this atomization device are still under continuous development, and it is expected to improve its performance and reliability, while reducing its manufacturing difficulty and manufacturing cost.

Electronic cigarettes usually use a porous ceramic material to absorb the smoke oil, and use a heater to heat the smoke oil for atomization. The porous ceramic material must be able to quickly absorb smoke oil in a short time, so the pore size cannot be too small. However, in the case of a relatively large aperture, it is prone to leakage of smoke oil, resulting in a dilemma in use.

This creation discloses an atomizing device and its atomizing element, in which the adsorption member uses a plurality of porous material layers to adjust the appropriate porosity, pore ratio or pore size, etc., so that one side of the adsorption member can be quickly adsorbed to be atomized Materials, and prevent leakage of the material to be atomized on the other side, which is particularly suitable for applications such as electronic cigarettes.

According to the first aspect of this creation, an atomizing element is disclosed, which includes an adsorbing element and a heating element. The adsorbent includes a plurality of stacked porous material layers, the plurality of porous material layers at least includes a first porous material layer and a second porous material layer, and the atomized material is adsorbed by the first porous material layer and then transferred to the second Porous material layer. The heating element heats the material to be atomized in the plurality of porous material layers for atomization. The first porous material layer includes a first porosity P1, the second porous material layer includes a second porosity P2, and P1>P2.

According to the second aspect of the present creation, an atomizing element is disclosed, which includes an adsorption member and a heating element. The adsorbent includes a plurality of stacked porous material layers, the plurality of porous material layers at least includes a first porous material layer and a second porous material layer, and the atomized material is adsorbed by the first porous material layer and then transferred to the second Porous material layer. The heating element heats the material to be atomized in the plurality of porous material layers for atomization. The first porous material layer in the center section of the adsorbent includes a first number of pores per unit area N1 and a first average pore diameter D1, and the second porous material layer in the center section of the adsorbent includes a second unit area The number of pores N2 and the second average pore diameter D2, N1×D1 ² > N2×D2 ² .

In one embodiment, the adsorbent includes opposing first and second surfaces, a surface of the first porous material layer forms the first surface, and a surface of the second porous material layer forms the second surface .

In one embodiment, the material to be atomized physically contacts the first surface, and the heating element physically contacts the second surface.

In one embodiment, the first porosity P1 is 1.1 to 12 times the second porosity P2.

In an embodiment, the thickness T1 of the first porous material layer and the thickness T2 of the second porous material layer have the following relationship: T1/T2=1~2.5.

In one embodiment, the thickness T1 of the first porous material layer is a quarter of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is a quarter of the thickness of the adsorbent.

In one embodiment, the thickness T1 of the first porous material layer is one fifth of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is one fifth of the thickness of the adsorbent.

In one embodiment, N1×D1 ² is 2 to 2000 times N2×D2 ² .

In one embodiment, the number N1 of pores per unit area is 0.4 to 10 times the number N2 of pores per unit area.

In one embodiment, the first average pore diameter D1 is 1.1 to 15 times the second average pore diameter D2.

According to the third aspect of the present creation, an atomizing device is disclosed, which includes a housing, an adsorption member, a heating element, and a battery. The casing encloses a storage tank for storing the material to be atomized. The adsorption member includes a plurality of stacked porous material layers, the plurality of porous material layers at least includes a first porous material layer and a second porous material layer, and the material to be atomized is adsorbed by the first porous material layer and then transferred to The second porous material layer. The heating element heats the material to be atomized in the plurality of porous material layers for atomization. The battery provides power for the heating element. The first porous material layer includes a first porosity P1, the second porous material layer includes a second porosity P2, and P1>P2.

The atomizing device and the atomizing element of the present invention include an adsorption member to adsorb the material to be atomized. Taking e-cigarettes as an example, this creation uses the appropriate adjustment of the porosity or the proportion of pores in the multiple porous material layers in the adsorbent to quickly absorb the smoke oil as the material to be atomized, and there is no leakage of smoke oil near the surface of the heating element Problems can provide effective solutions for e-cigarettes at this stage.

In order to make the above-mentioned and other technical contents, features and advantages of this creation more obvious and understandable, the relevant embodiments are specifically cited below, and in conjunction with the attached drawings, detailed descriptions are as follows.

FIG. 1 shows an atomizing device 10 whose configuration is designed to be used in, for example, electronic cigarettes. The atomizing device 10 may be, for example, a flat type, a cylindrical type, or other types, including a nozzle part 20 and a power supply part 40. The power supply portion 40 has a cavity 43 that can accommodate the main body of the nozzle portion 20 and can be combined with the nozzle portion 20. Thereby, the nozzle part 20 can be used as a replaceable cassette.

The suction nozzle portion 20 includes an air outlet 21, a sump 22, a flue 23, a separator 24, a liquid passage 25, an electrode holder 26, a housing 27, and an air inlet 28. The storage tank 22 stores a material to be atomized or liquid to be atomized, such as smoke oil. Generally speaking, the storage tank 22 may be a container or space formed by the housing 27 and the partition 24 for directly containing the material to be atomized or the liquid to be atomized. There are two liquid channels 25 in the partition 24, connecting the storage tank 22 and the atomizing element 30. The material to be atomized can flow to and contact the atomizing element 30 through the liquid channel 25 to be atomized. The electrode holder 26 provides a conductive channel for heating the power source of the atomizing element 30. The electrode holder 26 includes an air inlet hole 28 for air flow to pass through. The power supply section 40 includes a control circuit 41, a battery 42, and a case 44. The housing 44 forms a corresponding cavity 43 that can accommodate the nozzle portion 20. The control circuit 41 controls when the battery 42 starts to provide heating power to the atomizing element 30.

FIG. 2 is a cross-sectional view of the atomizing element 30 according to an embodiment of the present invention at the center line. The center line may be the longitudinal or lateral center line of the atomizing element 30. FIG. 3 is a bottom view of the atomizing element 30. The atomizing element 30 includes an adsorbent 31 and a heating element 32. The suction member 31 includes a first surface 33 and a second surface 34, the first surface 33 is located on the opposite side of the second surface 34. In one embodiment, the material to be atomized physically contacts the first surface 33, and the heating element 32 physically contacts the second surface 34, such as a resistive heating element. The adsorbent 31 includes a plurality of stacked porous material layers, such as the four porous material layers shown in FIG. 2, but the number of layers can be adjusted according to requirements. Generally, the adsorbent 31 can include 3 to 20 porous material layers. In production, each porous material layer is filled with pore-forming agent in ceramic powder as required, and different pore-forming agent size and volume ratio (vol%) are adjusted to obtain an appropriate porosity or pore ratio. After that, the porous material layers are pressed and sintered, and the pore-forming agent leaves pores after volatilization due to high temperature.

In this embodiment, the adsorbent 31 includes a first porous material layer L1, a second porous material layer L2, a third porous material layer L3, and a fourth porous material layer L4. A surface of the first porous material layer L1 forms the first surface 33, and a surface of the second porous material layer L2 forms the second surface 34. After the atomized material is adsorbed by the first porous material layer L1, it is transferred to the second porous material layer L2 through the third porous material layer L3 and the fourth porous material layer L4. The first porous material layer L1 that is to be contacted with the material to be atomized must be able to quickly adsorb the material to be atomized (such as e-liquid), and the second porous material layer L2 at the bottom of the adsorbent 30 must prevent oil leakage, so the first The porosity P1 of a porous material layer L1 must be large enough to quickly absorb oil, and the porosity P2 of the second porous material layer L2 cannot be too large to prevent oil leakage, so P1>P2. In one embodiment, the porosity P1 of the first porous material layer L1 is the largest among all porous material layers, and the porosity P2 of the second porous material layer L2 is the smallest among all porous material layers. In one embodiment, the porosity P3 of the third porous material layer L3 and the porosity P4 of the fourth porous material layer L4 will be between P1 and P2. In another embodiment, a plurality of porous materials in the adsorbent 30 The porosity of the layer gradually decreases from the first surface 33 to the second surface 34, that is, P1>P3>P4>P2. Porosity can be measured according to ASTM C20 or ASTM C373 specifications.

In an embodiment, the first porous material layer L1 is a material that can quickly absorb more to be atomized, and the thickness T1 of the first porous material layer L1 is greater than or equal to the thickness T2 of the second porous material layer L2, or in particular T1 is 1~2.5 times of T2, that is, T1/T2=1~2.5, for example, T1/T2=1.5 or 2. In one embodiment, the first porous material layer L1, the second porous material layer L2, the third porous material layer L3, and the fourth porous material layer L4 have the same thickness. That is, the thickness T1 of the first porous material layer L1 is a quarter of the thickness of the adsorbent 31, and this thickness has a more critical effect on the oil absorption time. The thickness T2 of the second porous material layer L2 is a quarter of the thickness of the adsorbent 31, and this thickness will affect the oil leakage to a considerable extent. Sometimes the boundary of each porous material layer may not be so obvious, but these quarter thicknesses have a more critical effect on the oil absorption rate and oil leakage, which can be directly defined by the thickness of the upper and lower quarters of the adsorbent The first porous material layer L1 and the second porous material layer L2. In an adsorbent with more porous material layers, one-fifth of the thickness has a more critical effect on oil absorption and oil leakage, so the thickness T1 of the first porous material layer L1 is defined as the thickness of the adsorbent 31 The thickness T2 of the second porous material layer L2 is defined as one fifth of the thickness of the adsorbing member 31.

Table 1 below shows the data such as the material, volume percentage, pore size, pore size, mechanical strength, and oil absorption time of the porous material layers L1, L3, L4, and L2 of Examples 1 to 5. In addition to the aluminum oxide (Al ₂ O ₃ ) used in the examples, the material of the porous material layer may be silicon carbide (SiC), sodium silicate (Na ₂ SiO ₃ ), ferrite (ferrite), or other ceramic materials. Pore forming agent can use carbon black, starch, short carbon fiber or plastic materials. Plastic materials such as polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), polyvinyl butyral (PVB), etc. In Example 1, the size of the pore-forming agent is the same in the porous material layers L1, L3, L4, and L2, which are all 80 μm, but the volume percentage decreases, so that the adsorbent 31 with decreasing porosity is fabricated. In Example 2, the size of the pore-forming agent is the same in the porous material layers L1, L3, L4, and L2, all being 80 µm. The proportion of the pore-forming agent is 82% in the porous material layers L1 and L3, and 66% in the porous material layers L4 and L2. In Embodiment 2, an adsorbent 31 with decreasing porosity may also be produced, which may be in a press-fit relationship. The same size and ratio of pore-forming agent may result in different porosities. In Example 3, the size of the pore-forming agent of the porous material layers L1 and L3 is 80 µm, and the size of the pore-forming agent of the porous material layers L4 and L2 is 12 µm, that is, the part close to the material to be atomized adopts a larger size For the pore-forming agent, a smaller-sized pore-forming agent is used for the portion close to the heating element 32. In Example 4, the porosity of the second porous material layer L2 is very small, only 6.2%, and has good oil leakage resistance. Example 5 includes 10 porous material layers, in which the porosity of the second porous material layer L2 is also very small, only 6.2%. In Examples 1 to 5, the first porosity P1 is 1.1 to 12 times the second porosity P2. The first porosity P1 may also be 2 times, 5 times or 10 times the second porosity P2. The oil absorption time of Examples 1 to 5 can reach 4 seconds or less, and the mechanical strength of each porous material layer is 8 to 70 N/mm ² .

Table 1 Examples Material/Scale Pore forming agent size/ratio Porosity P Number of pores per unit area N (1/mm ² ) Average aperture D (mm) N×D ² Mechanical strength (N/mm ² ) Oil absorption time (sec) 1 L1 Al ₂ O ₃ (18%) 80µm /82% 73.4% 232 0.091 1.92 8.17 3 L3 Al ₂ O ₃ (34%) 80µm/66% 62.8% 197 0.070 0.97 23.19 L4 Al ₂ O ₃ (42%) 80µm/58% 59.2% 190 0.068 0.88 28.49 L2 Al ₂ O ₃ (52%) 80µm/48% 52.1% 176 0.064 0.72 42.21 2 L1 Al ₂ O ₃ (18%) 80µm/82% 73.8% 253 0.096 2.33 8.63 4 L3 Al ₂ O ₃ (18%) 80µm/82% 71.5% 211 0.084 1.49 7.77 L4 Al ₂ O ₃ (34%) 80µm/66% 63.6% 190 0.069 0.9 21.25 L2 Al ₂ O ₃ (34%) 80µm/66% 61.5% 190 0.072 0.98 25.35 3 L1 Al ₂ O ₃ (18%) 80µm/82% 70.2% 204 0.080 1.31 10.23 4 L3 Al ₂ O ₃ (18%) 80µm/82% 72.8% 225 0.083 1.55 9.89 L4 Al ₂ O ₃ (49%) 12µm/51% 49.3% 436 0.008 0.03 43.41 L2 Al ₂ O ₃ (49%) 12µm/51% 46.8% 408 0.007 0.02 46.13 4 L1 Al ₂ O ₃ (23%) 80µm/77% 65.9% 199 0.082 1.338 28.69 4 L3 Al ₂ O ₃ (23%) 80µm/77% 65.6% 201 0.079 1.254 31.67 L4 Al ₂ O ₃ (23%) 80µm/77% 62.2% 192 0.084 1.354 25.07 L2 Al ₂ O ₃ (90%) 12µm/10% 6.2% twenty three 0.0074 0.001 67.34 5 L1 Al ₂ O ₃ (18%) 80µm/82% 72.3% 226 0.092 1.912 7.83 4 L3 Al ₂ O ₃ (18%) 80µm/82% 71.8% 213 0.089 1.687 7.56 L4 Al ₂ O ₃ (23%) 80µm/77% 66.8% 192 0.084 1.355 21.67 L5 Al ₂ O ₃ (23%) 80µm/77% 62.3% 188 0.080 1.203 26.83 L6 Al ₂ O ₃ (23%) 80µm/77% 65.6% 190 0.082 1.278 30.53 L7 Al ₂ O ₃ (23%) 80µm/77% 66.3% 187 0.088 1.448 28.67 L8 Al ₂ O ₃ (23%) 80µm/77% 65.8% 191 0.084 1.348 28.56 L9 Al ₂ O ₃ (23%) 80µm/77% 63.4% 184 0.079 1.148 29.88 L10 Al ₂ O ₃ (90%) 12µm/10% 5.8% 18 0.006 0.001 71.56 L2 Al ₂ O ₃ (90%) 12µm/10% 6.4% 26 0.007 0.001 69.24

The porosity P of the porous material layer in Table 1 is a three-dimensional space (3D), that is, the proportion of pores evaluated from the three-dimensional plane. In practice, the pore ratio can also be evaluated from the two-dimensional (2D) plane. Referring back to Figure 2, from the cross-sectional view, the number of pores per unit area N of the porous material layer multiplied by the average pore diameter D (diameter) squared (similar to the concept of pore area) (N×D ² ) can also represent the pore ratio, and It can be used as an index of the pore ratio of the porous material layer. That is, the larger the value of N×D ^{2, the} greater the proportion of pores. In this embodiment, the measurement of N is based on the measurement of the number of holes in an area of 0.44 mm×0.32 mm at a magnification of 20 times, so as to obtain the number of holes per square millimeter (mm ² ). The measurement of D is based on a 20-fold magnification to measure the average pore size of the larger 30 holes.

Table 1 also shows the average pore size and the number of pores of the cross section of the adsorbent 31, wherein the first porous material layer L1 in the central cross section of the adsorbent 31 includes a first number of pores per unit area N1 and a first average pore diameter D1, the The second porous material layer L2 in the central cross section of the adsorbent 31 includes a second number N2 of pores per unit area and a second average pore diameter D2, N1×D1 ² >N2×D2 ² . In Examples 1 to 5, N1×D1 ² is 2 to 2000 times N2×D2 ² , and it may be 10 times, 50 times, 100 times, 500 times, 1000 times, or 1500 times. In one embodiment, the number N1 of pores per unit area is 0.4 to 10 times the number N2 of pores per unit area, such as 1 times, 3 times, 5 times or 7 times. The first average pore diameter D1 is 1.1 to 15 times the second average pore diameter D2, for example, 3 times, 6 times, 9 times or 12 times.

Table 2 shows the data and test results of the porous material layers of Comparative Examples 1 and 2. In Comparative Example 1, all porous material layers used 80µm pore-forming agent. In Comparative Example 1, the porosity of the first porous material layer L1 is 58.3% less than the porosity of the second porous material layer L2 is 59.8%, and N1×D1 ² =0.94, N2×D2 ² =1.06, that is, N1×D1 ² >N2×D2 ² At this time, the oil absorption time is too long (7.5 sec), and oil leakage occurs. In Comparative Example 2, the porosity of the first porous material layer L1 is 48.6% less than the porosity of the second porous material layer L2 is 60.1%, and N1×D1 ² =0.02, N2×D2 ² =1.03, that is, N1×D1 ² >N2×D2 ² . Because the porous material layers L1 and L3 of Comparative Example 2 use a pore-forming agent with a smaller size of 12 µm, and the porous material layers L4 and L2 use a pore-forming agent with a larger size of 80 µm, the oil absorption rate is slowed, and the oil absorption time is further extended to 16 seconds. , And there are also oil spills.

Table 2 Comparative example Material/Scale Pore forming agent size/ratio Porosity Number of pores per unit area N (1/mm ² ) Average aperture D (mm) N×D ² Mechanical strength (N/mm ² ) Oil absorption time (sec) 1 L1 Al ₂ O ₃ (34%) 80µm/66% 58.3% 197 0.069 0.94 20.11 7.5 L3 Al ₂ O ₃ (34%) 80µm/66% 64.8% 183 0.065 0.77 19.38 L4 Al ₂ O ₃ (34%) 80µm/66% 61.6% 176 0.067 0.79 20.38 L2 Al ₂ O ₃ (34%) 80µm/66% 59.8% 211 0.071 1.06 23.69 2 L1 Al ₂ O ₃ (49%) 12µm/51% 48.6% 387 0.0077 0.02 42.38 16 L3 Al ₂ O ₃ (49%) 12µm/51% 50.1% 443 0.0086 0.03 39.86 L4 Al ₂ O ₃ (42%) 80µm/58% 58.4% 190 0.070 0.93 29.92 L2 Al ₂ O ₃ (42%) 80µm/58% 60.1% 204 0.071 1.03 26.32

It can be seen from the data of the examples and comparative examples in Table 1 and Table 2, that the adsorption member in the atomizing element can adjust the porosity or pore ratio of different porous material layers appropriately, and can simultaneously absorb the material to be atomized on one side at the same time. And the function of the material to be atomized is not leaked on the other side, which is an effect that cannot be achieved by the traditional adsorbent using a single porous material layer. The atomizing device created in this application is used in atomizing devices such as electronic cigarettes, which can meet the high specification requirements of the electronic cigarette to quickly smoke oil without leaking oil.

The technical content and technical characteristics of this creation have been disclosed above, however, those skilled in the art with ordinary knowledge may still make various substitutions and modifications based on the teaching and disclosure of this creation without departing from the spirit of this creation. Therefore, the scope of protection of this creation should not be limited to those disclosed in the embodiments, but should include various substitutions and modifications that do not deviate from this creation, and are covered by the following patent applications.

10‧‧‧Atomizing device 20‧‧‧ nozzle part 21‧‧‧ vent 22‧‧‧Storage tank 23‧‧‧ flue 24‧‧‧Parts 25‧‧‧Liquid channel 26‧‧‧Electrode holder 27‧‧‧Housing 28‧‧‧Air inlet 30‧‧‧Atomizer 31‧‧‧Adsorption parts 32‧‧‧Heating element 33‧‧‧First surface 34‧‧‧Second surface 40‧‧‧Power supply part 41‧‧‧Control circuit 42‧‧‧Battery 43‧‧‧ Cavity 44‧‧‧Housing L1, L2, L3, L4‧‧‧‧porous material layer

FIG. 1 shows a schematic diagram of an atomizing device according to an embodiment of the present invention. FIG. 2 shows a schematic diagram of an atomizing device according to an embodiment of the present invention. Fig. 3 shows a schematic bottom view of the atomizing element shown in Fig. 2.

30‧‧‧Atomizer

31‧‧‧Adsorption parts

32‧‧‧Heating element

33‧‧‧First surface

34‧‧‧Second surface

L1, L2, L3, L4‧‧‧‧porous material layer

Claims (18)

An atomizing element, including: The adsorbent includes a plurality of stacked porous material layers, the plurality of porous material layers at least includes a first porous material layer and a second porous material layer, and the atomized material is adsorbed by the first porous material layer and transferred to the first Two layers of porous material; and The heating element heats the material to be atomized in the plurality of porous material layers for atomization; The first porous material layer includes a first porosity P1, the second porous material layer includes a second porosity P2, and P1>P2. The atomizing element according to claim 1, wherein the adsorption member includes opposing first and second surfaces, a surface of the first porous material layer forms the first surface, and a surface of the second porous material layer This second surface is formed. The atomizing element according to claim 2, wherein the material to be atomized physically contacts the first surface, and the heating element physically contacts the second surface. The atomizing element according to claim 1, wherein the first porosity P1 is 1.1 to 12 times the second porosity P2. The atomizing element according to claim 1, wherein the thickness T1 of the first porous material layer and the thickness T2 of the second porous material layer have the following relationship: T1/T2=1 to 2.5. The atomizing element according to claim 1, wherein the thickness T1 of the first porous material layer is one fifth of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is one fifth of the thickness of the adsorbent. An atomizing element, comprising: an adsorption member, comprising a plurality of stacked porous material layers, the plurality of porous material layers at least including a first porous material layer and a second porous material layer, the material to be atomized passes through the first porous The material layer is transferred to the second porous material layer after being adsorbed; and the heating element heats the material to be atomized in the plurality of porous material layers for atomization; wherein the first porous material layer in the central section of the adsorption member Including the first number of pores per unit area N1 and the first average pore diameter D1, the second porous material layer in the central section of the adsorption member includes the second number of pores per unit area N2 and the second average pore diameter D2, N1 × D1 ² > N2×D2 ² . The atomizing element according to claim 7, wherein the adsorption member includes opposing first and second surfaces, a surface of the first porous material layer forms the first surface, and a surface of the second porous material layer This second surface is formed. The atomizing element according to claim 7, wherein N1×D1 ² is 2 to 2000 times of N2×D2 ² . The atomizing element according to claim 7, wherein the number N1 of pores per unit area is 0.4 to 10 times the number N2 of pores per unit area. The atomizing element according to claim 7, wherein the first average pore diameter D1 is 1.1 to 15 times the second average pore diameter D2. The atomizing element according to claim 7, wherein the thickness T1 of the first porous material layer and the thickness T2 of the second porous material layer have the following relationship: T1/T2=1 to 2.5. The atomizing element according to claim 7, wherein the thickness T1 of the first porous material layer is one fifth of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is one fifth of the thickness of the adsorbent. The atomizing element according to claim 7, wherein the thickness T1 of the first porous material layer is a quarter of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is a quarter of the thickness of the adsorbent. An atomizing device, including: The casing, which encloses a storage tank for storing the material to be atomized; The adsorbent includes a plurality of stacked porous material layers, the plurality of porous material layers at least includes a first porous material layer and a second porous material layer, and the material to be atomized is adsorbed by the first porous material layer and then transferred to Second porous material layer; A heating element, heating the material to be atomized in the plurality of porous material layers for atomization; and The battery provides power for the heating element; The first porous material layer includes a first porosity P1, the second porous material layer includes a second porosity P2, and P1>P2. The atomizing device according to claim 15, wherein the first porous material layer in the center section of the adsorption member includes a first number N1 of pores per unit area and a first average pore diameter D1, and the first section in the center section of the adsorption member The two porous material layers include a second number of pores per unit area N2 and a second average pore diameter D2, and N1×D1 ² >N2×D2 ² . The atomizing device according to claim 15, wherein the adsorption member includes opposing first and second surfaces, a surface of the first porous material layer forms the first surface, and a surface of the second porous material layer This second surface is formed. The atomizing device according to claim 15, wherein the thickness T1 of the first porous material layer is one fifth of the thickness of the adsorbent, and the thickness T2 of the second porous material layer is one fifth of the thickness of the adsorbent.

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