Atomizing core, atomizer and electronic atomization device

Abstract

The application relates to an atomizing core, an atomizer and an electronic atomizing device. The atomizing core comprises a base body, has an atomizing surface, a heating body arranged on the atomizing surface, a first atomizing area formed by the projection of the heating body on the atomizing surface, a second atomizing area arranged on the periphery of the first atomizing area, and a blocking body arranged on the second atomizing area and used for blocking the atomization of aerosol generating substrate in the second atomizing area. By arranging the blocking body in the second atomizing area, i.e. the area with relatively low temperature during atomization, the flow of aerosol generating substrate to the area is blocked, and the atomization area is limited to the first atomizing area where the heating body is arranged, so that the atomization in the second atomizing area with low temperature can be completely avoided. Moreover, the first atomizing area where the heating body is arranged has the highest temperature and the strongest burst force, and can provide high supersaturation when atomizing the aerosol generating substrate, so that the equal proportion atomization is maximized, and the consistency before and after smoking is good.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular to an atomizing core, atomizer, and electronic atomization device. Background Technology

[0002] An electronic atomizing device is a device that can heat an aerosol to generate a matrix. Its atomizing core usually includes a ceramic substrate and a heating element disposed on the atomizing surface of the ceramic substrate. When the heating element is powered on, it heats the aerosol near the atomizing surface 0 to generate a matrix.

[0003] The atomizing surface typically includes a first atomizing zone containing the heating element and a second atomizing zone adjacent to the first. The first atomizing zone has the highest temperature and strongest explosive force, and the aerosol generating matrix above the heating element has a high supersaturation, maximizing proportional atomization. The second atomizing zone, on the other hand, has a lower atomization temperature and lower boiling point.

[0004] Substances at a specific point will be preferentially atomized, thus inevitably resulting in disproportionate atomization. Furthermore, as the number of inhalation ports increases, the amount of low-boiling-point substances in the aerosol-generating matrix decreases, leading to inconsistent taste before and after inhalation. Summary of the Invention

[0005] Therefore, it is necessary to provide an atomizing core, atomizer, and electronic atomizing device that can alleviate the poor consistency of taste before and after vaping caused by the non-zero proportion of atomization in the porous matrix area.

[0006] This application provides an atomizing core, comprising:

[0007] The substrate has an atomizing surface;

[0008] A heating element is disposed on an atomizing surface. The area where the orthographic projection of the heating element onto the atomizing surface is located forms a first atomizing zone. The atomizing surface also has a second atomizing zone disposed around the first atomizing zone; and

[0009] The barrier is located in the second atomization zone and is used to prevent the aerosol generation matrix from being atomized in the second atomization zone.

[0010] In one embodiment, all surfaces of the substrate except the atomizing surface are exposed on the outside of the atomizing core.

[0011] In one embodiment, the barrier is a dense body.

[0012] In one embodiment, the heating element is a porous heating element, the blocking element is a porous blocking element, and the porosity of the heating element is greater than that of the blocking element.

[0013] In one embodiment, the porosity of the barrier is less than 20%, and the porosity of the heating element ranges from 20% to 70%.

[0014] In one embodiment, the heating element and the blocking element are integrally formed.

[0015] In one embodiment, the second atomization zone includes a first boundary, which is not adjacent to the first atomization zone. The orthographic projection of the block on the second atomization zone forms a projection area, and the first boundary and the projection area are spaced apart from each other.

[0016] In one embodiment, the barrier and the heating element are spaced apart from each other.

[0017] In one embodiment, the heating element has a curved heating element, a blocking body is disposed within the curve of the heating element, and the blocking body is spaced apart from the heating element along its circumference.

[0018] Secondly, an atomizer is provided, including the atomizing core of any of the above embodiments.

[0019] In one embodiment, the substrate further includes a liquid-absorbing surface, and the atomizer further includes a seal covering the other surfaces of the substrate except for the liquid-absorbing surface and the atomizing surface.

[0020] Thirdly, an electronic atomizing device is also provided, including the aforementioned atomizer.

[0021] The aforementioned atomizing coil, atomizer, and electronic atomizing device, by placing a barrier in the second atomization zone—that is, the area with a relatively low temperature during atomization—prevents the aerosol-generating matrix from flowing into this zone, thus confining the atomization area to the first atomization zone where the heating element is located. This completely avoids atomization in the low-temperature second atomization zone. Furthermore, since the first atomization zone, where the heating element is located, has the highest temperature and strongest burst power, it can provide a high degree of supersaturation when atomizing the aerosol-generating matrix, maximizing proportional atomization. This results in good consistency between the inhalation sensation and the maximization of the aroma reproduction of the aerosol-generating matrix. Attached Figure Description

[0022] Figure 1 A schematic diagram of the atomizing core in one embodiment of this application is shown;

[0023] Figure 2 A top view of the atomizing core in another embodiment of this application is shown;

[0024] Figure 3 A top view of the atomizing core in another embodiment of this application is shown;

[0025] Figure 4 A top view of the heating element and the blocking element combination in the atomizing core of another embodiment of this application is shown.

[0026] Figure label:

[0027] Atomizer core 100;

[0028] Matrix 10;

[0029] Atomizing surface 11, first atomizing zone 111, second atomizing zone 112, first boundary 1121, second boundary 1122, liquid absorption surface 12, side surface 13;

[0030] 20 heating elements;

[0031] Heating element 21, first electrode 22, second electrode 23;

[0032] Block 30. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0040] The accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0041] Figure 1 A schematic diagram of the atomizing core in one embodiment of this application is shown.

[0042] Referring to the accompanying drawings, this application provides an atomizing core 100 according to an embodiment, including a substrate 10, a heating element 20, and a blocking element 30. The atomizing core 100 of this application heats the atomizing aerosol generating matrix after being powered on to generate an aerosol. Specifically, the atomizing core 100 of this application can be applied to an electronic atomizing device, where a liquid storage chamber can provide the aerosol generating matrix to the atomizing core 100 for atomization to generate an aerosol.

[0043] The substrate 10 can be a porous substrate, such as porous alumina ceramics, porous silica, porous cordierite, porous silicon carbide, porous glass, porous silicon nitride, porous mullite, composite porous ceramics, and composite porous glass, etc., and is not limited to these, but can also be other materials suitable for molding and sintering. The molding method of the porous substrate is not limited to tape casting, injection molding, and dry pressing.

[0044] Specifically, the porous matrix is ​​in fluid communication with the liquid storage chamber and can adsorb the aerosol generation matrix from the liquid storage chamber through capillary action, and / or allow the aerosol generation matrix to enter the porous matrix under gravity. The heating element 20 heats and atomizes the aerosol generation matrix in the porous matrix.

[0045] The substrate 10 has an atomizing surface 11, and the heating element 20 is disposed on the atomizing surface 11. Specifically, it can be disposed on the atomizing surface 11 of the substrate 10, or it can be at least partially embedded in the interior of the substrate 10 from the atomizing surface 11.

[0046] The substrate 10 also has a liquid absorption surface 12, which can be arranged opposite to the atomizing surface 11 or not. In short, the aerosol generation matrix in the liquid storage cavity can enter the substrate 10 from the liquid absorption surface 12 and then be guided to the atomizing surface 11 to be heated and atomized by the heating element 20.

[0047] The heating element 20 can be a heating plate, heating film, heating mesh, etc., as long as it can heat the atomized aerosol to generate a matrix.

[0048] Please see Figure 2 In the embodiments of this application, the area where the orthographic projection of the heating element 20 on the atomizing surface 11 is located forms the first atomizing region 111. It can be understood that the orthographic projection of the heating element 20 on the atomizing surface 11 refers to the orthographic projection of the heating element 20 toward the heating element 20 along a direction perpendicular to the atomizing surface 11.

[0049] The atomizing surface 11 also has a second atomizing zone 112 located around the first atomizing zone 111, and the blocking body 30 is located in the second atomizing zone 112 to block the aerosol generating matrix from atomizing in the second atomizing zone 112.

[0050] Specifically, the area where the orthographic projection of the blocker 30 on the atomizing surface 11 is located can completely overlap with the second atomizing area 112, or only partially overlap; there is no specific limitation.

[0051] The barrier 30 can be a dense material, such as quartz, glass, dense ceramic, or silicon. When the barrier 30 is made of glass, it can be one of ordinary glass, quartz glass, borosilicate glass, or photosensitive lithium aluminosilicate glass. It should be noted that when the barrier 30 is a dense material, it can also have pores, and its porosity should differ from that of the porous matrix. Specifically, the porosity of the barrier 30 should be less than that of the porous matrix.

[0052] The atomizing core 100 of this application has a blocking body 30 positioned in the second atomization zone 112, which is a region with a relatively low temperature during atomization. This blocks the flow of the aerosol generating matrix into this region, thus confining the atomization area to the first atomization zone 111 where the heating element 20 is located. Therefore, atomization in the low-temperature second atomization zone 112 can be completely avoided. Furthermore, since the temperature of the first atomization zone 111 where the heating element 20 is located is the highest and the explosive power is the strongest, a high supersaturation can be provided when atomizing the aerosol generating matrix, maximizing the achievement of proportional atomization. This results in good consistency of the inhalation sensation before and after vaping and maximizes the reproduction of the aroma of the aerosol generating matrix.

[0053] In addition, since the aerosol generating matrix is ​​blocked from atomizing in the second atomization zone 112, the energy required for heating the aerosol generating matrix in the second atomization zone 112 is saved, and the energy utilization rate of the heating element 20 during atomization is improved.

[0054] Please refer to it again. Figure 1 In some embodiments, all surfaces of the substrate 10 except the atomizing surface 11 are exposed on the outside of the atomizing core 100.

[0055] Specifically, in the embodiments of this application, one side surface of the substrate 10 is an atomizing surface 11, and the side surface opposite to the atomizing surface 11 is a liquid-absorbing surface 12. In addition, the substrate 10 also includes a plurality of side surfaces 13 disposed between the atomizing surface 11 and the liquid-absorbing surface 12. Both the side surfaces and the liquid-absorbing surface 12 are exposed on the outer side of the atomizing core 100. Specifically, the substrate 10 may be rectangular, cylindrical, V-shaped, etc., and is not limited thereto.

[0056] It is understood that the blocking body 30 of this application does not extend to the other surfaces of the substrate 10 except for the atomizing surface 11.

[0057] This not only avoids affecting the stability of the heating element 20 structure, but also simplifies the process.

[0058] In some embodiments, the heating element 20 is a porous heating element, and the barrier 30 can be a porous barrier, wherein the porosity of the heating element 20 is greater than the porosity of the barrier 30.

[0059] Thus, when the aerosol generating matrix enters the matrix 10 and flows toward the atomizing surface 11, it will be attracted by the porous heating element with a larger porosity and concentrated in the first atomizing zone 111, further reducing the aerosol generating matrix's residence in the second atomizing zone 112 where the barrier 30 is located, thereby increasing the supersaturation of the aerosol generating matrix in the first atomizing zone 111.

[0060] Optionally, the porosity of the barrier 30 is less than 20%, and the porosity of the heating element 20 ranges from 20% to 70%.

[0061] Within this porosity range, the manufacturing difficulty of the barrier 30 and the heating element 20 can be reduced.

[0062] Specifically, the pore size of the porous heating element ranges from 10 mm to 50 mm.

[0063] In the embodiments of this application, when the substrate 10 is a porous substrate, the porosity of the porous substrate ranges from 50% to 80%.

[0064] Specifically, the pore size of the porous matrix ranges from 15 mm to 60 mm.

[0065] In some embodiments, to simplify the manufacturing process of the atomizing core 100, the heating element 20 and the blocking element 30 are integrally formed.

[0066] Specifically, the heating element 20 and the blocking element 30 are integrally formed by a printing process. The materials of the heating element 20 and the blocking element 30 can be the same.

[0067] Of course, in other embodiments, the material of the heating element 20 may be different from that of the blocking element 30.

[0068] In the embodiments of this application, the heating element 20 is a heating film, which can be formed by screen printing or vacuum coating.

[0069] Specifically, when using screen printing to prepare the heating film, the heating film slurry has a certain fluidity. During printing, the slurry can penetrate into the pores of the porous substrate. Because the pores of the porous substrate are not straight-through pores but have a certain degree of tortuosity and the pore walls are not smooth, there is resistance to the penetration of the slurry. The viscous resistance of the pore walls of porous substrates with low porosity or small pore diameter (15 micrometers to 60 micrometers) is even greater, resulting in a lower degree of penetration of the heating film slurry. At the same time, the penetration amount can be controlled by adjusting the high-temperature fluidity of the heating film material or the viscosity of the slurry at low temperatures.

[0070] Preferably, the thickness of the heating film ranges from 15 micrometers to 150 micrometers, and the thickness of the portion of the heating film filling the porous substrate does not exceed 60% of the total thickness of the heating film.

[0071] By controlling the amount of heat film seepage, the overheating and boiling of the aerosol generation matrix inside the atomizing core 100 can be reduced, thereby reducing heat loss and improving atomization efficiency.

[0072] When a heating film is prepared using vacuum deposition, specifically magnetron sputtering, the heating film material undergoes a small amount of seepage into the pores of the porous substrate. The thickness of the heating film can be controlled within the range of 1 micrometer to 5 micrometers.

[0073] Thus, because the amount of heating membrane that seeps into the porous substrate is small, less heat is generated, thereby improving energy utilization. In addition, the small amount of seepage provides physical integration between the heating membrane and the porous substrate, enhancing the membrane-substrate bonding force, and thus improving the structural reliability of the heating membrane.

[0074] Please refer to it again. Figures 2-4 In some embodiments, the heating element 20 includes a heating element 21, a first electrode 22 and a second electrode 23, wherein the first electrode 22 and the second electrode 23 are connected to the heating element 21.

[0075] In this way, the heating element 21, the first electrode 22 and the second electrode 23 can be simultaneously disposed on the atomizing surface 11, thereby simplifying the connection process.

[0076] Specifically, the first electrode 22 and the second electrode 23 can be connected to opposite ends of the heating element 21.

[0077] Specifically, the heating element 21 is elongated, and in some other embodiments, it may also be bent into an S-shape or other shapes, without limitation.

[0078] Please see Figure 2 When the area where the orthographic projection of the block 30 on the second atomization zone 112 is located partially overlaps with the second atomization zone 112, in some embodiments, the second atomization zone 112 includes a first boundary 1121, the first boundary 1121 is not adjacent to the first atomization zone 111, the orthographic projection of the block 30 on the second atomization zone 112 forms a projection area, and the first boundary 1121 and the projection area are spaced apart from each other.

[0079] Considering that an extremely low temperature zone will be formed in the area far from the heating element 20, the temperature in this area is insufficient to atomize the aerosol and generate the matrix, the projection area of ​​the barrier 30 on the second atomization zone 112 is spaced apart from the first boundary 1121, which can save the forming material of the barrier 30 and simplify the process.

[0080] Please see Figure 3 and Figure 4 In some embodiments, the barrier 30 and the heating element 20 are spaced apart from each other.

[0081] Specifically, the second atomizing region 112 further includes a second boundary 1122, which is adjacent to the first atomizing region 111. The orthographic projection of the block 30 onto the second atomizing region 112 forms a projection area, and the second boundary 1122 and the projection area are spaced apart from each other. In the embodiments of this application, the first boundary 1121 and the second boundary 1122 may be arranged opposite to each other.

[0082] Due to the uncontrollable nature of the preparation process, the barrier 30 may overlap with the heating element 20 during the preparation process. This will cause the heating element 20 to dry burn at the overlap due to the lack of aerosol generation matrix. Therefore, setting the barrier 30 and the heating element 20 apart can avoid interference from the heating element 20 and improve the heating atomization efficiency.

[0083] In other embodiments, the first boundary 1121 of the second atomizing region 112 is spaced apart from the projected area formed by the barrier 30, and the barrier 30 is spaced apart from the heating element 20.

[0084] Specifically, in the embodiments of this application, the blocking body 30 and the heating element 21 of the heating body 20 are spaced apart from each other. More specifically, the second boundary 1122 is adjacent to the orthographic projection of the heating element 21 formed in the first atomization region 111.

[0085] It should be noted that when the heating element 21 is curved, for example, S-shaped, the blocking body 30 can be provided in the bend formed by the curved heating element 21, and the blocking body 30 is spaced apart from the heating element 21 along its circumference.

[0086] In this way, the heating element 20 and the barrier 30 can be constructed into a structure similar to a river embankment, which is conducive to increasing the height of the oil film in the interval area and increasing the effective amount of matrix generated by the atomized aerosol of the heating element 20.

[0087] Based on the same inventive concept, this application also provides an atomizer, including the atomizing core 100 in any of the above embodiments.

[0088] Specifically, the atomizer also includes a housing, within which a reservoir is formed for storing the aerosol generation matrix.

[0089] In some embodiments, the atomizer further includes a seal that covers the other surfaces of the substrate 10 except for the liquid absorption surface 12 and the atomizing surface 11.

[0090] By providing a sealing element to cover the other surfaces of the substrate 10 except for the liquid absorption surface 12 and the atomizing surface 11, leakage of the aerosol generation matrix from the substrate 10 can be reduced, thereby increasing the saturation of the aerosol generation matrix of the substrate 10.

[0091] Specifically, the seal is a silicone seal, but it can also be an elastic seal made of other materials; there are no specific limitations.

[0092] Based on the same inventive concept, this application also provides an electronic atomizing device, including the atomizer in any of the above embodiments.

[0093] Specifically, the electronic atomizing device also includes a power supply component that can provide electrical energy to the atomizing core 100 so that the atomizing core 100 can heat the atomized aerosol to generate a matrix.

[0094] The atomizing core 100, atomizer, and electronic atomizing device provided in this application have the following beneficial effects:

[0095] By placing the blocker 30 in the second atomization zone 112, which is a region with a relatively low temperature during atomization, the flow of the aerosol generating matrix into this region is blocked, thus confining the atomization area to the first atomization zone 111 where the heating element 20 is located. This completely avoids atomization in the low-temperature second atomization zone 112. Furthermore, since the first atomization zone 111, where the heating element 20 is located, has the highest temperature and strongest explosive force, it can provide a high degree of supersaturation when atomizing the aerosol generating matrix, maximizing proportional atomization. This results in good consistency of the inhalation sensation before and after vaping and maximizes the reproduction of the aroma of the aerosol generating matrix.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An atomizing core, characterized in that, include: A porous matrix with liquid absorption surface and atomizing surface; A heating element is disposed on the atomizing surface. The area where the orthographic projection of the heating element is located on the atomizing surface forms a first atomizing zone. The atomizing surface also has a second atomizing zone disposed around the first atomizing zone. The aerosol generating matrix can enter the porous matrix from the liquid absorption surface and be guided to the first atomizing zone and the second atomizing zone. as well as A blocking body is disposed in the second atomization zone to prevent the aerosol generating matrix from atomizing in the second atomization zone.

2. The atomizing core according to claim 1, characterized in that, All surfaces of the substrate, except for the atomizing surface, are exposed on the outside of the atomizing core.

3. The atomizing core according to claim 1, characterized in that, The barrier is a dense body.

4. The atomizing core according to claim 1, characterized in that, The heating element is a porous heating element, and the blocking body is a porous blocking body. The porosity of the heating element is greater than that of the blocking body.

5. The atomizing core according to claim 4, characterized in that, The porosity of the barrier is less than 20%, and the porosity of the heating element is in the range of 20% to 70%.

6. The atomizing core according to claim 1, characterized in that, The heating element and the blocking element are integrally formed.

7. The atomizing core according to claim 1, characterized in that, The second atomization zone includes a first boundary, which is not adjacent to the first atomization zone. The orthographic projection of the block on the second atomization zone forms a projection area, and the first boundary and the projection area are spaced apart from each other.

8. The atomizing core according to claim 1, characterized in that, The barrier and the heating element are spaced apart from each other.

9. The atomizing core according to claim 8, characterized in that, The heating element has a curved heating element, and the blocking body is disposed within the curve of the heating element, and the blocking body is spaced apart from the heating element along its circumference.

10. An atomizer, characterized in that, Includes the atomizing core as described in any one of claims 1 to 9.

11. The atomizer according to claim 10, characterized in that, The atomizer also includes a seal that covers the other surfaces of the substrate except for the liquid absorption surface and the atomizing surface.

12. An electronic atomizing device, characterized in that, The atomizer as described in claim 10 or 11.

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