Atomization assembly and atomization device

Abstract

The atomization assembly comprises a heating body and a porous ceramic main body, and the heating body comprises a positive electrode connecting part, a heating part and a negative electrode connecting part which are connected in sequence; the heating body is fixed on the porous ceramic main body, the porous ceramic main body is provided with a first area corresponding to the electrode connecting part and a second area corresponding to the heating part, the average pore size of the second area is larger than that of the first area, and the porosity of the second area is larger than that of the first area; in this way, the oil guide rate of the second area corresponding to the heating part and with the high temperature is higher, the atomization effect is better, and the atomization effect of the whole atomization assembly can be improved; the carbon deposition probability can be reduced due to the large average pore size and porosity of the second area, and the service life of the whole atomization assembly is prolonged; in addition, the average pore size and porosity of the first area are small, the structural strength of the whole porous ceramic body can be improved, and the service life of the atomization assembly can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an atomization component and an atomization device. Background Art

[0002] The atomization component is the core of the atomization device, and its main functions are oil guiding and atomization.

[0003] The atomizer assembly includes a porous ceramic core and a heating element fixed on the porous ceramic core. The main principle of the atomizer assembly is that the porous ceramic core absorbs the atomized liquid by the capillary action of the porous structure, and the heating element fixed on the porous ceramic core heats the porous ceramic core and the atomized liquid after being energized to atomize the atomized liquid. However, conventional atomizer assemblies have poor atomization effect on the atomized liquid, are prone to carbon deposition, and are prone to reducing the life of the atomizer assembly. Utility Model Content

[0004] The present application provides an atomization assembly and an atomization device, which are used to solve the technical problems of poor atomization effect of the atomization assembly, easy carbon deposition and reduced life of the atomization assembly.

[0005] According to the first aspect, an embodiment provides an atomization assembly, comprising:

[0006] A heating element, the heating element comprising an electrode connecting portion and a heating portion, the electrode connecting portion comprising a positive electrode connecting portion and a negative electrode connecting portion, the positive electrode connecting portion, the heating portion and the negative electrode connecting portion being sequentially connected and arranged;

[0007] A porous ceramic body, the heating element is fixed on the porous ceramic body, the porous ceramic body has a first area corresponding to the electrode connecting part and a second area corresponding to the heating part; the average pore size of the second area is greater than the average pore size of the first area, and the porosity of the second area is greater than the porosity of the first area.

[0008] In an optional embodiment, the heating portion includes a concentrated heating portion and a heating connection portion, the heating connection portion is used to connect the concentrated heating portion with the electrode connection portion, or the heating connection portion is used to connect two adjacent concentrated heating portions;

[0009] The second region includes a main heating zone corresponding to the concentrated heating portion and a secondary heating zone corresponding to the heating connection portion, the average pore size of the main heating zone is greater than the average pore size of the secondary heating zone, and the porosity of the main heating zone is greater than the porosity of the secondary heating zone.

[0010] In an optional embodiment, in the arrangement direction of the positive electrode connecting portion and the negative electrode connecting portion, the average pore size of the porous ceramic body first increases and then decreases, and the pores of the porous ceramic body first increase and then decrease.

[0011] In an optional embodiment, the porous ceramic body includes a plurality of porous ceramic layers arranged in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part, and the porous ceramic layers include a first porous ceramic layer located in the first area and a second porous ceramic layer located in the second area.

[0012] In an optional embodiment, the average pore size of the first porous ceramic layer is 1-30 μm, and the average pore size of the second porous ceramic layer is 20-50 μm;

[0013] The porosity of the first porous ceramic layer is 10%-70%, and the porosity of the second porous ceramic layer is 30%-90%.

[0014] In an optional embodiment, the heating portion includes a concentrated heating portion and a heating connection portion, the heating connection portion is used to connect the concentrated heating portion with the electrode connection portion, or the heating connection portion is used to connect two adjacent concentrated heating portions; the second porous ceramic layer includes a third porous ceramic layer corresponding to the heating connection portion and a fourth porous ceramic layer corresponding to the concentrated heating portion;

[0015] The average pore size of the fourth porous ceramic layer is greater than the average pore size of the third porous ceramic layer, and the porosity of the fourth porous ceramic layer is greater than the porosity of the third porous ceramic layer.

[0016] In an optional embodiment, the average pore size of the fourth porous ceramic layer is 20-50 μm, and the average pore size of the third porous ceramic layer is 10-40 μm;

[0017] The porosity of the fourth porous ceramic layer is 30%-90%, and the porosity of the third porous ceramic layer is 20%-80%.

[0018] In an optional embodiment, the surface of the porous ceramic body facing the electrode connecting portion is a plane, and the two electrode connecting portions are attached to the plane;

[0019] Alternatively, the surface of the porous ceramic body facing the electrode connecting portion is a curved surface, the two electrode connecting portions are in contact with the curved surface, and the two electrode connecting portions are spaced apart in the circumferential direction of the curved surface.

[0020] In an optional embodiment, the heating part includes a heating wire, and the heating wires are multiple, and the multiple heating wires are connected end to end in sequence, and the multiple heating wires are arranged at intervals in a direction perpendicular to the arrangement direction of the positive electrode connecting part and the negative electrode connecting part.

[0021] In an optional embodiment, the porous ceramic body has a groove, the groove is located on a side of the porous ceramic body away from the heating element, and the second area corresponds to a bottom wall of the groove.

[0022] In an optional embodiment, the cross-sectional area of ​​the notch of the groove in a direction perpendicular to the notch of the groove is greater than the cross-sectional area of ​​the groove bottom of the groove in a direction perpendicular to the notch of the groove.

[0023] In an optional embodiment, the cross-sectional area of ​​the groove in a direction perpendicular to the groove opening gradually decreases from the groove opening to the groove bottom.

[0024] According to the second aspect, an embodiment provides an atomization device, comprising any of the atomization components described above.

[0025] According to the atomization assembly and atomization device of the above-mentioned embodiment, the atomization assembly includes a heating element and a porous ceramic body, the heating element includes an electrode connection part and a heating part, the electrode connection part includes a positive electrode connection part and a negative electrode connection part, and the positive electrode connection part, the heating part and the negative electrode connection part are connected and arranged in sequence; the heating element is fixed on the porous ceramic body, and the porous ceramic body has a first area corresponding to the electrode connection part and a second area corresponding to the heating part, the average pore size of the second area is greater than the average pore size of the first area, and the porosity of the second area is greater than the porosity of the first area; since the average pore size and porosity of the second area corresponding to the heating part are greater than the average pore size and porosity of the first area corresponding to the electrode connection part, the oil conduction rate of the second area corresponding to the heating part and with a higher temperature will be faster, the atomization effect will be better, and the atomization effect of the entire atomization assembly can be improved; and the larger average pore size and porosity of the second area can reduce the probability of carbon deposition and extend the life of the entire atomization assembly; in addition, the average pore size and porosity of the first area are smaller, which can increase the structural strength of the entire porous ceramic body and also extend the life of the atomization assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A front view of an atomization assembly in some embodiments;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of an atomization assembly in one embodiment;

[0028] Figure 3 This is a schematic diagram of the structure of the atomizing assembly on the side opposite to the heating element in one embodiment;

[0029] Figure 4 In one embodiment, corresponding to Figure 1 A schematic diagram of the cross-sectional structure of the porous ceramic body in the A-A' direction;

[0030] Figure 5 In another embodiment, corresponding to Figure 1 A schematic diagram of the cross-sectional structure of the porous ceramic body in the A-A' direction;

[0031] Figure 6 A schematic diagram of average pore size distribution of a porous ceramic body in an atomization assembly of an embodiment;

[0032] Figure 7 Schematic diagram of the porosity distribution of the porous ceramic body in the atomization assembly in one embodiment.

[0033] In the figure: 10, atomization component; 1, heating element; 11, electrode connection part; 12, concentrated heating part; 13, heating connection part; 2, porous ceramic body; 21, first area; 22, second area; 221, main heating area; 222, auxiliary heating area; 231, first porous ceramic layer; 232, second porous ceramic layer; 233, third porous ceramic layer; 234, fourth porous ceramic layer; 24, groove. DETAILED DESCRIPTION

[0034] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0035] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0036] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0037] The present application discloses an atomization assembly 10, which is applied in an atomization device to realize atomization of atomization liquid.

[0038] The atomizer assembly 10 disclosed in the present application includes a heating element 1 and a porous ceramic body 2, the heating element 1 includes an electrode connecting portion 11 and a heating portion, the electrode connecting portion 11 includes a positive electrode connecting portion and a negative electrode connecting portion, and the positive electrode connecting portion, the heating portion and the negative electrode connecting portion are connected and arranged in sequence; the heating element 1 is fixed on the porous ceramic body 2, and the porous ceramic body 2 has a first area 21 corresponding to the electrode connecting portion 11 and a second area 22 corresponding to the heating portion; the average pore size of the second area 22 is greater than the average pore size of the first area 21, and the porosity of the second area 22 is greater than the porosity of the first area 21, so that the oil conduction rate of the second area 22 corresponding to the heating portion and having a higher temperature will be faster, the atomization effect will be better, and the atomization effect of the entire atomizer assembly 10 can be improved; and the larger average pore size and porosity of the second area 22 can reduce the probability of carbon deposition and extend the life of the entire atomizer assembly 10; in addition, the average pore size and porosity of the first area 21 are smaller, which can increase the structural strength of the entire porous ceramic body 2 and also extend the life of the atomizer assembly 10.

[0039] Specifically, please refer to Figures 1 to 5 In one embodiment, the shape of the porous ceramic body 2 in the atomizing assembly 10 can be a rectangular parallelepiped, and the heating element 1 is fixed to one of the side surfaces of the porous ceramic body 2. For example, in one example, the heating element 1 can be embedded in the porous ceramic body 2 to achieve a fixed connection with the porous ceramic body 2, and the heating element 1 can be integrally die-cast with the porous ceramic body 2. In another embodiment, the shape of the porous ceramic body 2 in the atomizing assembly 10 can also be a cylindrical structure with openings at both ends, and the heating element 1 is fixed to the inner circumference of the porous ceramic body 2.

[0040] The atomization component 10 is applied to an atomization device, and at least a portion of the porous ceramic body 2 is connected to an atomization chamber in the atomization device for containing atomized liquid. In this way, under the capillary force of the small holes in the porous ceramic body 2, the atomized liquid can be adsorbed to the side of the porous ceramic body 2 connected to the heating element 1. After the heating element 1 is energized, it can heat the atomized liquid to generate an aerosol, and the aerosol can be discharged along the atomization channel for use by the user.

[0041] In one embodiment, please continue to refer to Figures 1 to 5In the structure in which the porous ceramic body 2 is in the shape of a rectangular parallelepiped, the side of the porous ceramic body 2 facing the heating element 1 is a plane, and the electrode connecting portion 11 in the heating element 1 fits the plane. Specifically, the heating element 1 is fixed to one of the side surfaces of the porous ceramic body 2 in the height direction, and the positive electrode connecting portion and the negative electrode connecting portion are arranged at intervals in the length direction of the porous ceramic body 2, and the heating portion is connected between the positive electrode connecting portion and the negative electrode connecting portion in the length direction of the porous ceramic body 2. In this way, according to the different positions of the electrode connecting portion 11 and the heating portion, the porous ceramic body 2 can be divided into a first region 21 and a second region 22 arranged in the length direction of the porous ceramic body 2. The first region 21 is a region corresponding to the electrode connecting portion 11 in the height direction of the porous ceramic body 2, and the second region 22 is a region corresponding to the heating portion in the height direction of the porous ceramic body 2. There are two first regions 21, and the second region 22 is located between the two first regions 21.

[0042] In another embodiment, in an embodiment in which the shape of the porous ceramic body 2 is a cylindrical structure with openings at both ends, the side of the porous ceramic body 2 facing the heating element 1 is a curved surface, and the positive electrode connection part and the negative electrode connection part in the heating element 1 fit the curved surface. Specifically, the heating element 1 is fixed on the inner circumferential surface of the cylindrical structure, and the positive electrode connection part and the negative electrode connection part are arranged at intervals in the circumferential direction of the porous ceramic body 2, that is, in the circumferential direction of the curved surface, and the heating part is connected between the positive electrode connection part and the negative electrode connection part in the circumferential direction of the porous ceramic body 2, so that the porous ceramic body 2 can be divided into a first area 21 and a second area 22 arranged in the circumferential direction of the porous ceramic body 2, the first area 21 corresponds to the electrode connection part 11 in the thickness direction of the porous ceramic body 2, the second area 22 corresponds to the heating part in the thickness direction of the porous ceramic body 2, and the second area 22 is located between the two first areas 21 in the circumferential direction of the porous ceramic body 2, and the two first areas 21 can be connected in the circumferential direction of the porous ceramic body 2 to form one area.

[0043] In one embodiment, please refer to Figures 1 to 5 For the heating element 1, the electrode connecting portion 11 is used for an external lead to realize electrical connection between an external power source and the heating element 1. The heating portion is used to generate heat to heat the atomized liquid. After the entire heating element 1 is energized, the temperature of the heating portion is higher than the temperature of the electrode connecting portion 11. In this case, on the porous ceramic body 2, a first area 21 corresponding to the electrode connecting portion 11 forms a low-temperature zone, and a second area 22 corresponding to the heating portion forms a high-temperature zone.

[0044] For the porous ceramic body 2, the average pore size of the small pores in the high-temperature second region 22 is set to be larger than the average pore size of the small pores in the low-temperature first region 21, and the porosity of the porous ceramic body 2 in the high-temperature second region 22 is set to be larger than the porosity of the low-temperature first region 21. In this way, the first region 21 with a smaller average pore size and smaller porosity can increase the strength of the entire porous ceramic body 2, which helps to extend the life of the entire atomization assembly 10.

[0045] Since the average pore size and porosity of the second region 22 corresponding to the heating part are relatively large, the porous ceramic body 2 of the second region 22 can absorb more atomized liquid to the side where the heating element 1 is located in the same time period, that is, the heating part in the heating element 1 can atomize more atomized liquid in the same time period, which can increase the atomization rate of the porous ceramic body 2 corresponding to the second region 22 and improve the atomization efficiency of the entire atomization component 10; and since the atomization rate of the second region 22 is faster, at the same time, the concentration of the atomized liquid in the second region 22 is lower than the concentration of the atomized liquid in the first region 21 with a lower temperature, and the atomized liquid in the first region 21 will flow from the first region 21 into the second region 22 with a larger average pore size and porosity, which can also improve the atomization efficiency of the second region 22 and the entire atomization component 10.

[0046] In addition, since most of the atomized liquid flows in the small holes in the second area 22, and the average pore size and porosity of the small holes in the porous ceramic body 2 corresponding to the second area 22 are relatively large, this can reduce the probability of carbon deposition in the porous ceramic body 2 and the entire atomization assembly 10, thereby extending the life of the entire atomization assembly 10.

[0047] For some examples, please refer to Figure 1 and Figure 2 The heat generating portion corresponding to the second region 22 includes a concentrated heat generating portion 12 and a heat generating connecting portion 13. The heat generating connecting portion 13 can be used to connect the concentrated heat generating portion 12 and the electrode connecting portion 11. Figure 1 As shown, there are two heating connection parts 13, one of which connects the positive heating part and the concentrated heating part 12, and the other connects the negative heating part and the concentrated heating part 12; of course, in other embodiments, more than two concentrated heating parts 12 can be set in the heating part to achieve zoned heating, so that in addition to connecting the electrode connection part 11 and the concentrated heating part 12, the heating connection part 13 can also connect two concentrated heating parts 12.

[0048] The heating part can be a heating wire, a heating sheet, a heating film, etc., and its specific structural form and material are not limited. In the direction perpendicular to the arrangement direction of the positive electrode connection part and the negative electrode connection part, the concentrated heating part 12 can be a larger part, while the heating connection part 13 is a smaller part. After the heating part is powered on, the temperature of the concentrated heating part 12 is the highest and plays the main heating role. The temperature of the heating connection part 13 is lower than that of the concentrated heating part 12. The heating connection part 13 plays a connecting role on the one hand, and also plays an auxiliary heating role on the other hand.

[0049] According to the different temperatures of the heating part, the second area 22 in the porous ceramic body 2 corresponding to the heating part is divided into zones, and the second area 22 is set to include a main heating area 221 corresponding to the concentrated heating part 12, and also includes a secondary heating area 222 corresponding to the heating connection part 13. In the second area 22, the average pore size and porosity of different zones are set to be different according to the temperature difference, and the average pore size of the main heating area 221 is set to be larger than the average pore size of the secondary heating area 222, and the porosity of the main heating area 221 is set to be larger than the porosity of the secondary heating area 222.

[0050] Of course, in other embodiments, the average pore size of the secondary heating zone 222 can be set equal to the average pore size of the main heating zone 221, and the porosity of the secondary heating zone 222 can be set equal to the porosity of the main heating zone 221, so as to reduce the processing difficulty of the porous ceramic body 2.

[0051] For some examples, please refer to Figures 4 to 7 It can also be arranged that in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part, the average pore size of the porous ceramic main body 2 presents a trend of first increasing and then decreasing, so that the average pore size of the porous ceramic main body 2 generally presents a trend of approximate normal distribution, and the porosity of the porous ceramic main body 2 presents a trend of first increasing and then decreasing, so that the porosity of the porous ceramic main body 2 generally presents a trend of approximate normal distribution. In this way, the atomization efficiency of the atomization assembly 10 can be improved while ensuring the structural strength of the porous ceramic main body 2.

[0052] The heating connection part 13 is connected between the concentrated heating part 12 and the electrode connection part 11, the maximum average pore size position of the porous ceramic body 2 is located in the second region 22, and the maximum porosity position is also located in the second region 22. The porous ceramic body 2 can be arranged to include a plurality of porous ceramic layers arranged in the arrangement direction of the positive electrode connection part and the negative electrode connection part. In the arrangement direction of the positive electrode connection part and the negative electrode connection part, the farther the porous ceramic layer is from the maximum average pore size position, the smaller its average pore size is, and the farther the porous ceramic layer is from the maximum porosity position, the smaller its porosity is.

[0053] In one embodiment, please refer to Figures 4 to 7, the average pore size of the porous ceramic body 2 may be symmetrically distributed in the arrangement direction of the positive electrode connection part and the negative electrode connection part, and the position of the maximum average pore size is located in the middle of the second region 22; the porosity of the porous ceramic body 2 may also be symmetrically distributed in the arrangement direction of the positive electrode connection part and the negative electrode connection part, and the position of the maximum porosity is located in the middle of the second region 22. Of course, in other embodiments, the average pore size and porosity of the porous ceramic body 2 may also be asymmetric in the arrangement direction of the positive electrode connection part and the negative electrode connection part, as long as the maximum average pore size and the maximum porosity are both located in the second region 22.

[0054] It should be noted that, in theory, the structure in which the average pore size and porosity of the porous ceramic body 2 are symmetrically distributed in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part is a structure that ensures the optimal oil conduction rate and strength of the porous ceramic body 2, and reduces the processing difficulty and improves the processing efficiency. However, due to the error limitations of the existing process, it may not be possible to achieve complete symmetry. Therefore, the average pore size and porosity at each point in the porous ceramic body 2 in which the average pore size and porosity are symmetrically distributed in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part can have a certain floating range.

[0055] For some examples, please refer to Figure 4 and Figure 5 The porous ceramic body 2 includes a plurality of porous ceramic layers stacked in the arrangement direction of the positive electrode connection part and the negative electrode connection part. The plurality of porous ceramic layers can be formed by die casting and then die cast into an integral structure, or formed by tape casting.

[0056] In one embodiment, please refer to Figure 4 The number of porous ceramic layers can be three, and the three porous ceramic layers include a first porous ceramic layer 231 arranged in the first area 21, and a second porous ceramic layer 232 arranged in the second area 22. Since there are two first areas 21, the multiple porous ceramic layers include two first porous ceramic layers 231 and a second porous ceramic layer 232 located between the two first porous ceramic layers 231.

[0057] Further, the average pore size, porosity and thickness of the two first porous ceramic layers 231 are set to be equal, and the average pore size and porosity of different porous ceramic layers are set to be different according to the temperature difference; for example, the average pore size of the first porous ceramic layer 231 can be set to 1-30μm, the porosity can be set to 10%-70%, and the thickness of the first porous ceramic layer 231 in the arrangement direction of the positive electrode connection part and the negative electrode connection part can be set to 3-5mm; the average pore size of the second porous ceramic layer 232 is 20-50μm, the porosity can be set to 30%-90%, and the thickness of the second porous ceramic layer 232 in the arrangement direction of the positive electrode connection part and the negative electrode connection part can be set to 2-5mm. The porosity of the second porous ceramic layer 232 is greater than the porosity of the first porous ceramic layer 231; the porous ceramic body 2 with such parameter settings can effectively improve its oil conduction rate while also ensuring the strength of the porous ceramic body 2.

[0058] Of course, in other embodiments, under the premise that the average pore size of the second porous ceramic layer 232 is greater than the average pore size of the first porous ceramic layer 231, if the average pore size of the first porous ceramic layer 231 is greater than 30 μm and the average pore size of the second porous ceramic layer 232 is greater than 50 μm, or the average pore size of the first porous ceramic layer 231 is less than 1 μm and the average pore size of the second porous ceramic layer 232 is less than 20 μm, it is also possible under the condition that the strength and oil conduction rate of the porous ceramic body 2 can be basically met. Or under the premise that the porosity of the second porous ceramic layer 232 is greater than the porosity of the first porous ceramic layer 231, if the porosity of the first porous ceramic layer 231 is slightly less than 10% or slightly greater than 70%, and the porosity of the second porous ceramic layer 232 is slightly less than 30% or slightly greater than 90%, it is also possible under the condition that the strength and oil conduction rate of the porous ceramic body 2 can be basically met.

[0059] The porous ceramic layer designed according to the above parameters is applied in the atomizer assembly 10. Under the condition that the thickness of each porous ceramic layer meets the above parameter requirements, the oil conduction rate and ceramic strength comparison of porous ceramic layers with different average pore sizes and porosities are shown in the five examples in Table 1 below.

[0060]

[0061]

[0062] Table 1

[0063] Table 1 shows that, in the first example, the first porous ceramic layer 231 has an average pore size of 5 μm and a porosity of 10%, the second porous ceramic layer 232 has an average pore size of 10 μm and a porosity of 20%, the oil conduction rate is 0.411 ul / s, and the ceramic strength is high; in the second example, the first porous ceramic layer 231 has an average pore size of 10 μm and a porosity of 10%, the second porous ceramic layer 232 has an average pore size of 20 μm and a porosity of 30%, the oil conduction rate is 1.03 ul / s, and the ceramic strength is high; in the third example, the first porous ceramic layer 231 has an average pore size of 20 μm and a porosity of 40%, the second porous ceramic layer 232 has an average pore size of 20 μm and a porosity of 30%, the oil conduction rate is 1.03 ul / s, and the ceramic strength is high. The ceramic layer 232 has an average pore size of 35 μm, a porosity of 60%, an oil conduction rate of 1.54 ul / s, and high ceramic strength; in the fourth example, the first porous ceramic layer 231 has an average pore size of 30 μm, a porosity of 70%, the second porous ceramic layer 232 has an average pore size of 50 μm, a porosity of 90%, an oil conduction rate of 1.81 ul / s, and moderate ceramic strength; in the fifth example, the first porous ceramic layer 231 has an average pore size of 35 μm, a porosity of 80%, the second porous ceramic layer 232 has an average pore size of 60 μm, a porosity of 90%, an oil conduction rate of 1.89 ul / s, and the ceramic strength is low and fragile.

[0064] It can be analyzed from the data in the above table that in the second example, the third example, and the fourth example in which the average pore size of the first porous ceramic layer 231 is 10-30μm, the porosity is 10%-70%, and the average pore size of the second porous ceramic layer 232 is 20-50μm, and the porosity is 30%-90%, the oil conduction rate and strength of the porous ceramic body 2 all meet the requirements; in the first example in which the average pore size of the first porous ceramic layer 231 is less than 10μm, the porosity is 10%, and the average pore size of the second porous ceramic layer 232 is less than 20μm, and the porosity is less than 30%, the strength of the porous ceramic body 2 is high, but the flow conduction rate is low; in the fifth example in which the average pore size of the first porous ceramic layer 231 is greater than 30μm, the porosity is greater than 70%, and the average pore size of the second porous ceramic layer 232 is greater than 50μm, and the porosity is 90%, the flow conduction rate of the porous ceramic body 2 is high, but the strength of the porous ceramic body 2 is low and it is fragile.

[0065] In another embodiment, please refer to Figure 5 The number of porous ceramic layers can also be set to five, wherein the second porous ceramic layer 232 corresponding to the second region 22 can be further layered according to the temperature difference in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part.

[0066] The second porous ceramic layer 232 is provided to include a third porous ceramic layer 233 corresponding to the heating connection part 13, and also includes a fourth porous ceramic layer 234 corresponding to the concentrated heating part 12, so that the second porous ceramic layer 232 includes two third porous ceramic layers 233 and a fourth porous ceramic layer 234 located between the two third porous ceramic layers 233; in the arrangement direction of the positive electrode connection part and the negative electrode connection part, the entire porous ceramic body 2 includes the first porous ceramic layer 231, the third porous ceramic layer 233, the fourth porous ceramic layer 234, the third porous ceramic layer 233 and the first porous ceramic layer 231 in sequence, and the average pore size, porosity and thickness of the two third porous ceramic layers 233 are equal.

[0067] Furthermore, different porous ceramic layers are set with different average pore sizes and porosities; for example, the average pore size of each third porous ceramic layer 233 is set to 10-40μm, the porosity is 20%-80%, and the thickness of the third porous ceramic layer 233 in the arrangement direction of the positive electrode connection part and the negative electrode connection part is 0.5-1.5mm; the average pore size of the fourth porous ceramic layer 234 is 20-50μm, the porosity is 30%-90%, and the thickness of the fourth porous ceramic layer 234 in the arrangement direction of the positive electrode connection part and the negative electrode connection part is 2-3mm; the average pore size of the fourth porous ceramic layer 234 is greater than the average pore size of the third porous ceramic layer 233, and the porosity of the fourth porous ceramic layer 234 is greater than the porosity of the third porous ceramic layer 233; the second region 22 with such parameter settings can effectively improve its oil conduction rate while ensuring the strength of the entire porous ceramic body 2.

[0068] Of course, under the premise that the average pore size of the fourth porous ceramic layer 234 is greater than the average pore size of the third porous ceramic layer 233, and the average pore size of the third porous ceramic layer 233 is greater than the average pore size of the first porous ceramic layer 231; if the average pore size of the third porous ceramic layer 233 is greater than 40μm, the average pore size of the fourth porous ceramic layer 234 is greater than 50μm, or the average pore size of the third porous ceramic layer 233 is less than 10μm, and the average pore size of the fourth porous ceramic layer 234 is less than 20μm, it is possible as long as the strength and oil conduction rate of the porous ceramic body 2 can be basically met. Alternatively, under the premise that the porosity of the fourth porous ceramic layer 234 is greater than the porosity of the third porous ceramic layer 233, and the porosity of the third porous ceramic layer 233 is greater than the porosity of the first porous ceramic layer 231; if the porosity of the third porous ceramic layer 233 is less than 20% or greater than 80%, and the porosity of the second porous ceramic layer 232 is less than 30% or greater than 90%, it is also acceptable as long as the strength and oil conductivity of the porous ceramic body 2 can be basically met.

[0069] In another embodiment, please refer to Figure 6 and Figure 7, the number of porous ceramic layers can also be seven, the seven porous ceramic layers include two porous ceramic layers located in the first region 21 and five porous ceramic layers located in the second region 22 in the arrangement direction of the positive electrode connection part and the negative electrode connection part, Figure 6 and Figure 7 The extension direction of the middle horizontal axis represents the arrangement direction of the positive electrode connection part and the negative electrode connection part. The five porous ceramic layers may not be arranged according to the positions of the concentrated heat generating part 12 and the heat generating connection part 13. The thicknesses of the five porous ceramic layers may be equal. Among the five porous ceramic layers of the second region 22, the porous ceramic layer located in the middle position has the largest porosity and average pore size. From the porous ceramic layer in the middle position toward the electrode connection part 11, the average pore size and porosity of each porous ceramic layer gradually decrease.

[0070] Of course, the multiple porous ceramic layers may not be arranged according to the positions of the electrode connecting part 11 and the heating part, as long as the average pore size and porosity of the multiple porous ceramic layers gradually increase to the maximum and then gradually decrease in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part.

[0071] In some other embodiments, porous ceramic layers with different average pore sizes and porosities corresponding to the parts of the heating element 1 with different heating temperatures can be flexibly set, as long as the high-temperature part of the heating element 1 corresponds to the porous ceramic layer with high average pore size and high porosity, and the low-temperature part corresponds to the porous ceramic layer with low average pore size and low porosity. The aforementioned "high" and "low" are only used to compare the numerical values ​​of the two, and do not indicate that they have a specific range.

[0072] For some examples, please refer to Figure 3 The porous ceramic body 2 has a groove 24, which is located on the side of the porous ceramic body 2 away from the heating element 1. The notch of the groove 24 is arranged away from the heating element 1, and the bottom wall of the groove 24 is arranged corresponding to the second area 22 in the arrangement direction of the positive electrode connection part and the negative electrode connection part. In this way, the second area 22 has a smaller size in the thickness direction of the porous ceramic body 2. The atomized liquid can quickly flow along the small holes in the second area 22 along the thickness direction of the porous ceramic body 2 to the side where the heating element 1 is located, which helps to improve the atomization efficiency of the entire atomization assembly 10.

[0073] Furthermore, when the atomizing assembly 10 is used in the atomizing device, the notch of the groove 24 faces upward, and the atomizing liquid can be contained in the groove 24, so that the atomizing liquid in the groove 24 can quickly flow along the small holes in the second area 22 to the side where the heating element 1 is located under the action of gravity.

[0074] Of course, in some other embodiments, if the overall thickness of the porous ceramic body 2 is not large, the groove 24 may not be provided.

[0075] Furthermore, the groove 24 has a cross section perpendicular to its notch, and the cross-sectional area of ​​the groove 24 at its notch is greater than the cross-sectional area of ​​the groove 24 at the bottom of the groove, so that the groove 24 forms a structure with a large mouth and a small bottom, which helps to increase the amount of atomized liquid that can be contained in the entire groove 24, so as to meet the requirements of the atomization assembly 10 for having a better atomization effect. Of course, in some other embodiments, the cross-sectional area of ​​the groove 24 at the notch can also be equal to the cross-sectional area of ​​the groove 24 at the bottom of the groove, which facilitates the processing and manufacturing of the entire groove 24.

[0076] Furthermore, the groove wall surface of the groove 24 is an inclined surface, and the cross-sectional area of ​​the groove 24 in the direction perpendicular to the groove opening gradually decreases from the groove opening of the groove 24 to the groove bottom of the groove 24, so as to ensure that the groove side walls of the entire groove 24 are all inclined structures, so as to facilitate the processing and manufacturing of the entire groove 24.

[0077] Of course, the groove wall surface of the groove 24 can also be set to an arc surface or a curved surface structure, which can also facilitate the processing and manufacturing of the groove 24 on the basis of increasing the volume of the atomized liquid that can be contained in the entire groove 24.

[0078] For some examples, please refer to Figure 1 to Figure 2 For the heating element 1, the resistivity of the electrode connecting portion 11 and the heating portion of the heating element 1 is different. In this way, after the heating element 1 is energized, the heating amount of the electrode connecting portion 11 and the heating portion of the heating element 1 is different, so as to achieve the temperature difference between the electrode connecting portion 11 and the heating portion. The difference in resistivity between the heating portion and the electrode connecting portion 11 can be achieved by changing the materials of the heating portion and the electrode connecting portion 11, or making the shapes and cross-sectional areas of the heating portion and the electrode connecting portion 11 different.

[0079] The electrode connection part 11 is mainly used for external wire connection. The resistivity of the electrode connection part 11 is less than the resistivity of the heating part. The heating part includes a heating wire. There are multiple heating wires. The multiple heating wires are connected end to end in sequence. The multiple heating wires are arranged in parallel. This facilitates the arrangement of the heating wires on the porous ceramic body 2. The arrangement direction of the two adjacent heating wires is perpendicular to the arrangement direction of the positive electrode connection part and the negative electrode connection part. This helps to arrange the heating part evenly in the second area 22, which also helps to improve the atomization efficiency of the entire atomization assembly 10. Of course, the arrangement direction of the two adjacent heating wires can also be set in the same direction as the arrangement direction of the positive electrode connection part and the negative electrode connection part. This arrangement also helps to arrange the heating part evenly in the second area 22, and also helps to improve the atomization efficiency of the entire atomization assembly 10.

[0080] Please continue to refer to Figure 1 and Figure 2In the heating part, the part where multiple heating wires are arranged in parallel in a direction perpendicular to the arrangement direction of the positive electrode connecting part and the negative electrode connecting part is the concentrated heating part 12, and only one heating wire is provided and used to connect two concentrated heating parts 12 or connect between the concentrated heating part 12 and the electrode connecting part 11, which is the heating connecting part 13.

[0081] The present application also discloses an atomizing device, which is used to realize atomization of atomized liquid. The atomizing device includes the atomizing assembly 10 described in any of the above embodiments.

[0082] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An atomizing assembly, characterized in that: include: A heating element, the heating element comprising an electrode connecting portion and a heating portion, the electrode connecting portion comprising a positive electrode connecting portion and a negative electrode connecting portion, the positive electrode connecting portion, the heating portion and the negative electrode connecting portion being sequentially connected and arranged; A porous ceramic body, the heating element is fixed on the porous ceramic body, the porous ceramic body has a first area corresponding to the electrode connecting part and a second area corresponding to the heating part; the average pore size of the second area is greater than the average pore size of the first area, and the porosity of the second area is greater than the porosity of the first area.

2. The atomizer assembly according to claim 1, characterized in that: The heating part includes a concentrated heating part and a heating connection part, wherein the heating connection part is used to connect the concentrated heating part with the electrode connection part, or the heating connection part is used to connect two adjacent concentrated heating parts; The second region includes a main heating zone corresponding to the concentrated heating portion and a secondary heating zone corresponding to the heating connection portion, the average pore size of the main heating zone is greater than the average pore size of the secondary heating zone, and the porosity of the main heating zone is greater than the porosity of the secondary heating zone.

3. The atomizer assembly according to claim 1 or 2, characterized in that: In the arrangement direction of the positive electrode connecting portion and the negative electrode connecting portion, the average pore size of the porous ceramic body first increases and then decreases, and the pores of the porous ceramic body first increase and then decrease.

4. The atomizer assembly according to claim 1, characterized in that: The porous ceramic body includes a plurality of porous ceramic layers arranged in the arrangement direction of the positive electrode connecting part and the negative electrode connecting part, and the porous ceramic layers include a first porous ceramic layer located in the first region and a second porous ceramic layer located in the second region.

5. The atomizing assembly according to claim 4, characterized in that: The average pore size of the first porous ceramic layer is 1-30 μm, and the average pore size of the second porous ceramic layer is 20-50 μm; The porosity of the first porous ceramic layer is 10%-70%, and the porosity of the second porous ceramic layer is 30%-90%.

6. The atomizing assembly according to claim 4, characterized in that: The heating portion includes a concentrated heating portion and a heating connection portion, wherein the heating connection portion is used to connect the concentrated heating portion with the electrode connection portion, or the heating connection portion is used to connect two adjacent concentrated heating portions; the second porous ceramic layer includes a third porous ceramic layer corresponding to the heating connection portion and a fourth porous ceramic layer corresponding to the concentrated heating portion; The average pore size of the fourth porous ceramic layer is greater than the average pore size of the third porous ceramic layer, and the porosity of the fourth porous ceramic layer is greater than the porosity of the third porous ceramic layer.

7. The atomizing assembly according to claim 6, characterized in that: The average pore size of the fourth porous ceramic layer is 20-50 μm, and the average pore size of the third porous ceramic layer is 10-40 μm; The porosity of the fourth porous ceramic layer is 30%-90%, and the porosity of the third porous ceramic layer is 20%-80%.

8. The atomizer assembly according to claim 1 or 2, characterized in that: The surface of the porous ceramic body facing the electrode connecting portion is a plane, and the two electrode connecting portions are attached to the plane; Alternatively, the surface of the porous ceramic body facing the electrode connecting portion is a curved surface, the two electrode connecting portions are in contact with the curved surface, and the two electrode connecting portions are spaced apart in the circumferential direction of the curved surface.

9. The atomizer assembly according to claim 1 or 2, characterized in that: The heating portion includes a heating wire, and the heating wires are multiple, the multiple heating wires are connected end to end in sequence, and the multiple heating wires are arranged at intervals in a direction perpendicular to the arrangement direction of the positive electrode connecting portion and the negative electrode connecting portion.

10. The atomizer assembly according to claim 1 or 2, characterized in that: The porous ceramic body has a groove, the groove is located on a side of the porous ceramic body away from the heating element, and the second area corresponds to a bottom wall of the groove.

11. The atomizer assembly according to claim 10, characterized in that: The cross-sectional area of ​​the notch of the groove in a direction perpendicular to the notch of the groove is greater than the cross-sectional area of ​​the groove bottom of the groove in a direction perpendicular to the notch of the groove.

12. The atomizer assembly according to claim 11, characterized in that: The cross-sectional area of ​​the groove in a direction perpendicular to the groove opening gradually decreases from the groove opening to the groove bottom.

13. An atomizing device, characterized in that: The invention comprises the atomization assembly according to any one of claims 1 to 12.

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