Atomizer and electronic atomization device
By canceling the vent pipe setting and directly installing the porous substrate with the oil cup and base, the problems of complex assembly and low seal reliability of existing atomizers are solved, and the effect of simplifying assembly and improving seal reliability is achieved.
Patent Information
- Application Number
- CN202421671919.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the assembly process, existing atomizers have problems such as many components, complex structure, high sealing difficulty and low seal reliability.
By canceling the vent tube setting and using the atomized core to directly install it with the oil cup and the base, the porous substrate itself assumes the role of the vent tube, realizing the output of the aerosol and the stable connection between the base and the oil cup.
The assembly operation of the atomizer is simplified, the number of parts and sealing sites is reduced, and the seal reliability and assembly efficiency is improved.
Smart Images
Figure CN222982479U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electronic atomization, and particularly relates to an atomizer and an electronic atomization device. Background Art
[0002] An atomizer can be used to heat and atomize an atomization medium to form an aerosol for a user to inhale. In related technologies, the atomization core of an atomizer usually needs to be installed in an oil cup housing by means of structures such as an atomization bracket and a ventilation pipe. The atomization core absorbs the atomization medium in the liquid storage cavity of the oil cup and heats and atomizes it. However, during the assembly process of the atomizer, it is necessary to first assemble the porous matrix and the oil guiding body of the atomization core step by step, and then assemble the atomization core with the ventilation pipe, and then assemble the ventilation pipe with the oil cup. During this process, the atomizer not only has problems such as many components and complex structure, but also is prone to problems such as increased sealing difficulty and decreased sealing reliability due to the increase in components. Summary of the Utility Model
[0003] To solve at least one of the above technical problems, this application provides an atomizer and an electronic atomization device, which can cancel the setting of the ventilation pipe and directly install the atomization core with the oil cup and the base, simplifying the assembly operation of the atomization core. The technical solutions adopted are as follows.
[0004] In a first aspect, the atomizer provided by this application includes an oil cup, a base, and an atomization core. The oil cup includes a mouthpiece end and an open end; the base is sealed to the open end of the oil cup; the atomization core includes a porous matrix and a heating element. The porous matrix is disposed in the oil cup. A liquid storage cavity is formed by an interval between the outer periphery of the porous matrix and the inner wall of the oil cup. The porous matrix is provided with an axial through hole. One end of the porous matrix is connected to the mouthpiece end of the oil cup so that the axial through hole communicates with the mouthpiece of the oil cup and is used to output an aerosol to the mouthpiece end of the oil cup. The other end of the porous matrix is connected to the base, and the heating element is disposed on the inner wall surface of the axial through hole.
[0005] In some embodiments of this application, the surface of the porous matrix is provided with a filling area and a non-filling area outside the filling area. At least a filling material is provided in the filling area so that the porosity of the porous matrix in the filling area is lower than that in the non-filling area. The non-filling area is used to absorb and conduct the atomization medium, and the filling area is used to prevent the atomization medium from infiltrating into the surface of the porous matrix or leaking out from the surface of the porous matrix. The part of the axial through hole where the heating element is disposed is set as the non-filling area.
[0006] In some embodiments of this application, the area of the heating element corresponding to the outer peripheral side surface of the porous matrix is a liquid absorption area, and the liquid absorption area is set as the non-filling area. The area outside the liquid absorption area on the outer peripheral side surface of the porous matrix is set as the filling area.
[0007] In some embodiments of the present application, both end faces of the porous substrate are provided as the filling areas.
[0008] In some embodiments of the present application, at least one end of the porous substrate is provided with an assembly step, and at least a part of the assembly step extends into and abuts against the nozzle end of the oil cup or the base.
[0009] In some embodiments of the present application, the atomizer further includes a flexible seal. The flexible seal is provided with a ventilation hole, and the flexible seal is sleeved on the outer periphery of the assembly step so that the ventilation hole communicates with the axial through hole;
[0010] When the assembly step at one end of the porous substrate extends into the nozzle end of the oil cup, the flexible seal is used to abut against the nozzle end of the oil cup. When the assembly step at the other end of the porous substrate extends into the base, the flexible seal is used to abut against the base.
[0011] In some embodiments of the present application, the flexible seal includes a main body portion and a flanging. The ventilation hole is provided in the main body portion. The main body portion is sleeved on the outer periphery of the assembly step, and the flanging protrudes from the outer periphery of the main body portion;
[0012] The main body portion is used to seal the porous substrate in the radial direction of the porous substrate, and the flanging is used to seal the porous substrate in the axial direction of the porous substrate.
[0013] In some embodiments of the present application, the nozzle end of the oil cup is provided with an extension portion extending towards the liquid storage cavity, and the assembly step at one end of the porous substrate abuts against the opening of the extension portion.
[0014] In some embodiments of the present application, the atomization core is provided with at least two heating elements, and the two heating elements are arranged at intervals along the axial direction of the axial through hole.
[0015] In a second aspect, the present application further provides an electronic atomization device, including the atomizer provided in the first aspect.
[0016] The embodiments of the present application have at least the following beneficial effects: One end of the porous matrix is directly connected to the nozzle end of the oil cup, and the other end is directly connected to the base. Thus, the porous matrix itself can act as a ventilation pipe. In this way, there is no need to set up a ventilation pipe between the oil cup and the base. In this way, the porous matrix itself can not only bear the role of absorbing the atomization medium, that is, the outer peripheral surface of the porous matrix absorbs the atomization medium in the liquid storage cavity and conducts the atomization medium to the inner surface of the axial through hole, so that the heating element can heat and atomize the atomization medium to form an aerosol. Moreover, the porous matrix can also bear the ventilation function of the ventilation pipe, so that the aerosol can flow along the axial through hole to the nozzle end for the user to suck. At the same time, because the porous matrix itself has a certain rigidity, it can play a supporting role between the nozzle end of the oil cup and the base, ensuring the stability of the assembly between the base and the oil cup. After canceling the ventilation pipe, since the connection between the atomization core and the ventilation pipe is also correspondingly canceled, there is no need to consider the sealing problem between the two ends of the atomization core and the ventilation pipe. On the one hand, it simplifies the number of parts of the entire atomizer, helps to improve the assembly efficiency and reduce the part cost, and also reduces the number of sealing points, thus reducing the sealing difficulty and improving the sealing reliability of the atomizer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The aspects and advantages described and / or appended in the embodiments of the present application will become apparent and easy to understand in conjunction with the following drawings. It should be noted that the embodiments shown in the following drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.
[0018] Figure 1 Structural schematic diagram of the electronic atomization device provided by the embodiment of the present application;
[0019] Figure 2 is Figure 1 A-A sectional view of;
[0020] Figure 3 Structural schematic diagram of the first example of the atomization core provided by the embodiment of the present application;
[0021] Figure 4 Sectional view of the first example of the atomization core provided by the embodiment of the present application;
[0022] Figure 5 Structural schematic diagram of the second example of the atomization core provided by the embodiment of the present application;
[0023] Figure 6 Sectional view of the third example of the atomization core provided by the embodiment of the present application;
[0024] Figure 7 Sectional view of the fourth example of the atomization core provided by the embodiment of the present application.
[0025] Reference numerals: 100, atomizer; 10, oil cup; 11, mouthpiece end; 12, open end; 13, liquid storage cavity; 14, extension part; 20, base; 30, atomization core; 31, porous matrix; 311, axial through hole; 312, filling area; 313, non-filling area; 314, assembly step; 32, heating element; 321, pin; 40, flexible seal; 41, main body part; 42, flanging; 200, electronic atomization device; 201, power supply structure. Detailed implementation manners
[0026] The following will combine Figures 1 to 7 Describe the embodiments of the present application in detail. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.
[0027] In the description of the present application, it should be understood that if terms such as "center", "middle part", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0028] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0029] In a first aspect, please refer to Figure 1 and Figure 2, this application also provides an electronic atomization device 200, which includes an atomizer 100 and a power supply structure 201. The power supply structure 201 is fixedly connected or detachably connected to the atomizer 100. The power supply structure 201 includes a battery, etc., and is electrically connected to the heating element in the atomizer 100 through structures such as leads and electrodes. The other components and operations of the electronic atomization device 200 are already described in the related art for those of ordinary skill in the art and will not be described in detail here. The structure of the atomizer 100 will be introduced below.
[0030] In a second aspect, this application provides an atomizer 100. Please refer to Figures 2 to 4 , the atomizer 100 includes an oil cup 10, a base 20, and an atomization core 30. The oil cup 10 includes a mouthpiece end 11 and an open end 12; the base 20 is sealed to the open end 12 of the oil cup 10; the atomization core 30 includes a porous matrix 31 and a heating element 32. The porous matrix 31 is disposed in the oil cup 10. The outer periphery of the porous matrix 31 is spaced from the inner wall of the oil cup 10 to form a liquid storage cavity 13. The porous matrix 31 is provided with an axial through hole 311. One end of the porous matrix 31 is connected to the mouthpiece end 11 of the oil cup 10 so that the axial through hole 311 communicates with the mouthpiece of the oil cup 10 and is used to output aerosol to the mouthpiece end 11 of the oil cup 10. The other end of the porous matrix 31 is connected to the base 20, and the heating element 32 is disposed on the inner wall surface of the axial through hole 311. By directly connecting one end of the porous matrix 31 to the mouthpiece end 11 of the oil cup 10 and the other end directly to the base 20, the porous matrix 31 itself can be used as an air pipe. In this way, there is no need to provide an air pipe between the oil cup 10 and the base 20. This means that the porous matrix 31 itself can not only absorb the atomization medium, that is, the outer peripheral surface of the porous matrix 31 absorbs the atomization medium in the liquid storage cavity 13 and conducts the atomization medium to the inner surface of the axial through hole 311, so that the heating element 32 can heat and atomize the atomization medium to form an aerosol, but also the porous matrix 31 can serve as an air pipe for ventilation, so that the aerosol can flow along the axial through hole 311 to the mouthpiece end 11 for the user to suck. At the same time, since the porous matrix 31 itself has a certain rigidity, it can play a supporting role between the mouthpiece end 11 of the oil cup 10 and the base 20 to ensure the stability of the assembly between the base 20 and the oil cup 10. After canceling the air pipe, since the connection between the atomization core 30 and the air pipe is also correspondingly canceled, there is no need to consider the sealing problem between the two ends of the atomization core 30 and the air pipe. On the one hand, the number of parts of the entire atomizer 100 is simplified, which helps to improve the assembly efficiency and reduce the part cost, and also reduces the number of sealing points, thus reducing the sealing difficulty and improving the sealing reliability of the atomizer 100.
[0031] Exemplarily, the porous matrix 31 can be made of materials such as porous ceramics, porous glass, etc. (of course, it can also be other synthetic or natural materials with a porous structure). The porous matrix 31 itself has a relatively high porosity, which is conducive to absorbing or conducting the liquid atomization medium and storing a certain amount of the atomization medium in the pores.
[0032] In some embodiments, referring to Figure 5 and Figure 6 , the atomization core 30 is provided with at least two heating elements 32, and the two heating elements 32 are arranged at intervals along the axial direction of the axial through hole 311. Since the porous matrix 31 is directly used to form the air pipe, in this way, the porous matrix 31 has more installation space in the axial direction. At this time, multiple heating elements 32, such as two or more, can be arranged along the axial direction, so as to improve the atomization power of the atomizer 100 and meet the design requirements of atomizers 100 of different models and different powers. When two or more heating elements 32 are provided, the operating conditions of the atomizer 100 can also be flexibly designed. For example, only a single heating element 32 is energized for heating atomization, or the two heating elements 32 are simultaneously energized for atomization. By switching the single or double firing control of the heating elements 32, the switching of the low-power and high-power operating modes of the atomizer 100 is realized. Optionally, the heating element 32 can be provided with pins 321, and the pins 321 extend along the inner wall of the axial through hole 311 to the outside of the axial through hole 311 to realize electrical connection with a power supply or a control circuit outside the atomization core 30.
[0033] Since the porous matrix 31 is used to replace the air pipe, and any position on the surface of the porous matrix 31 can absorb the atomization medium, compared with the prior art solution, the liquid absorption area of the atomization core 30 will be greatly increased. In order to control the liquid absorption area on the surface of the porous matrix 31 within a suitable range, a filling coating can be provided on the surface of the porous matrix 31 (including the outer peripheral surface and the inner wall surface of the axial through hole 311) to reduce the liquid absorption area. The filling method will be described below.
[0034] In some embodiments, a filling area 312 and a non-filling area 313 outside the filling area 312 are provided on the surface of the porous substrate 31. A filler is provided at least in the filling area 312, so that the porosity of the porous substrate 31 in the filling area 312 is lower than that of the non-filling area 313. The non-filling area 313 is used to absorb and conduct the atomization medium, and the filling area 312 is used to prevent the atomization medium from infiltrating into or leaking out of the surface of the porous substrate 31. The part where the heating element 32 is arranged through the axial through hole 311 is set as the non-filling area 313. By providing the filling area 312 on the porous substrate 31 and filling or covering the filler in the filling area 312, the filler can infiltrate and fill the pores on the surface of the filling area 312, which can reduce the porosity of the filling area 312, so as to obtain an area with a higher surface density on the surface of the porous substrate 31. The area has low permeability to the atomization medium, so as to avoid the leakage of the atomization medium from the filling area 312, achieving the effect of controlling the liquid absorption area and thus controlling the liquid absorption speed. The non-filling area 313 of the porous substrate 31 is not covered with the filler (or a small amount of filler is filled), so that the non-filling area 313 has a higher porosity (its porosity is equal to or close to the porosity of the porous substrate 31 itself), which helps to absorb or conduct the atomization medium to meet the liquid absorption requirements and realize the functions of absorbing and heating and atomizing the atomization medium by the atomization core 30. By adopting the method of setting the filling area 312 to control the liquid absorption area, on the one hand, the shape, position, size and filling depth of the filling area 312 can be flexibly set, reducing the processing difficulty of the atomization core 30; on the other hand, this setting method does not require assembling multiple parts with different porosities, such as welding and forming multiple interlayer materials. This not only helps to simplify the manufacturing process of the porous substrate 31 and improve the production yield, but also the porous substrate 31 is an integral part, which helps to improve its overall strength, avoid problems such as separation and cracking of each layer of material during use, and improve the reliability of the atomization core 30 in use.
[0035] Exemplarily, the filling depth (thickness of the filling layer) of the filler can range from 0.1 mm to 0.25 mm. For example, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, etc. can be set. By spraying water-based glass powder on the filling area 312 of the surface of the porous matrix 31 and drying and firing it, the filler forms a filling layer in the filling area 312 of the surface of the porous matrix 31. The porosity of the porous matrix 31 itself is 40% to 70%. After filling the filler in the filling area 312, its porosity decreases by 0 to 5%. When the porosity of the filling area 312 is 0, the filling area 312 has a sealing and blocking effect on the atomizing medium. When the porosity of the filling area 312 is set in the range of 0 (excluding) to 5%, the filling area 312 has a blocking effect on most of the atomizing medium, and the effect of controlling the liquid absorption area can be achieved. It can be understood that the processing method of filling the filler in the pore structure of the porous matrix 31 and sintering to form a filling layer provided in the above example is a prior art. The specific sintering process and its operation have been recorded in the relevant technology for those of ordinary skill in the art, and will not be described in detail here.
[0036] In some embodiments, the area of the heating element 32 corresponding to the outer peripheral side surface of the porous matrix 31 is the liquid absorption area, and the liquid absorption area is set as the non-filling area 313. The area outside the liquid absorption area on the outer peripheral side surface of the porous matrix 31 is set as the filling area 312. In this way, the liquid absorption area can be used to absorb the atomizing medium and conduct the atomizing medium from the outer peripheral side surface of the porous matrix 31 substantially along the radial direction of the porous matrix 31 to the inner wall surface of the axial through hole 311. The atomizing medium can be heated and atomized by the heating element 32 to form an aerosol, and the aerosol flows out from the axial through hole 311. And setting the area outside the liquid absorption area as the filling area 312 can reduce the permeability of the outer peripheral side surface of the porous matrix 31 to the atomizing medium, thereby reducing the absorption amount of the atomizing medium, controlling the liquid absorption rate within a suitable range, making the liquid absorption rate of the porous matrix 31 match the heating rate of the heating element 32, and avoiding problems such as liquid leakage and insufficient atomization caused by too fast liquid absorption but untimely atomization of the heating element 32, ensuring that the atomization core 30 has good use performance. It can be understood that the area of the heating element 32 corresponding to the outer peripheral side surface of the porous matrix 31 being the liquid absorption area means that the projection of the heating element 32 along the radial direction of the porous matrix 31 is substantially located in the liquid absorption area, or this projection coincides with the liquid absorption area, which can shorten the distance for the atomizing medium to be conducted from the liquid absorption area to the heating element 32 and improve the conduction effect of the porous matrix 31 on the atomizing medium.
[0037] It can be understood that the liquid absorption area corresponding to the atomization area being set means that the projection of the atomization area along the radial direction of the porous matrix 31 is substantially located in the liquid absorption area, or this projection coincides with the liquid absorption area, which can shorten the distance for the atomizing medium to be conducted from the liquid absorption area to the atomization area and improve the conduction effect of the porous matrix 31 on the atomizing medium. Optionally, the columnar body can be a cylinder or a prism.
[0038] Optionally, when the atomization core 30 is provided with a heating element 32, as Figure 4 shown, a liquid absorption area can be correspondingly provided on the outer peripheral side of the porous matrix 31. Correspondingly, the areas other than the liquid absorption area are all set as the filling area 312. When the atomization core 30 is provided with two heating elements 32, as Figure 5 and Figure 6 shown, at this time, two liquid absorption areas can be provided on the outer peripheral side of the porous matrix 31. And since the two heating elements 32 are arranged at intervals along the axial direction of the axial through hole 311, correspondingly, a gap can be provided between the two liquid absorption areas, and this gap area can be set as the filling area 312.
[0039] In some embodiments, the two end faces of the porous matrix 31 are set as the filling area 312. By providing the filling area 312 on the two end faces of the porous matrix 31, it is possible to prevent the atomization medium from leaking from the end faces of the porous matrix 31, and realize the sealed connection between the two ends of the porous matrix 31 and the nozzle end 11 of the oil cup 10 and the base 20 respectively.
[0040] In some embodiments, please refer to Figure 6 , at least one end of the porous matrix 31 is provided with an assembly step 314, and at least a part of the assembly step 314 extends into and abuts against the nozzle end 11 of the oil cup 10 or the base 20. By using the assembly step 314, a part of the assembly step 314 can be extended into the nozzle end 11 of the oil cup 10 or the base 20, so as to increase the contact area between the porous matrix 31 and the oil cup 10 or the base 20. On the one hand, it can improve the connection strength between the two, and ensure the stable connection between the porous matrix 31 and the oil cup 10 and the base 20; on the other hand, it also helps to improve the assembly accuracy between the porous matrix 31 and the oil cup 10 and the base 20, and improve the sealing effect by using the acting force generated when they abut against each other. Exemplarily, the porous matrix 31 can be provided with assembly steps 314 at both ends simultaneously (as Figure 6 shown), or can be provided with an assembly step 314 only at one end close to the nozzle end 11 or only at one end close to the base 20, which is not limited herein.
[0041] In some embodiments, please refer to Figure 7, the atomizer 100 further includes a flexible seal 40. The flexible seal 40 is provided with a ventilation hole. The flexible seal 40 is sleeved on the outer periphery of the assembly step 314 so that the ventilation hole communicates with the axial through hole 311. When the assembly step 314 at one end of the porous matrix 31 extends into the nozzle end 11 of the oil cup 10, the flexible seal 40 is used to abut against the nozzle end 11 of the oil cup 10. When the assembly step 314 at the other end of the porous matrix 31 extends into the base 20, the flexible seal 40 is used to abut against the base 20. By providing the flexible seal 40, the deformable characteristic of the flexible seal 40 can be utilized to provide a sealing effect, further improving the sealing effect between the porous matrix 31 and the oil cup 10 and between the porous matrix 31 and the base 20. Exemplarily, the flexible seal 40 can be sealing silica gel, and the sealing silica gel can be arranged in forms such as a washer, a silica gel cap, etc.
[0042] In some embodiments, the flexible seal 40 includes a main body portion 41 and a flanging 42. The ventilation hole is arranged in the main body portion 41. The main body portion 41 is sleeved on the outer periphery of the assembly step 314, and the flanging 42 protrudes from the outer periphery of the main body portion 41. The main body portion 41 is used to seal the porous matrix 31 along the radial direction of the porous matrix 31, and the flanging 42 is used to seal the porous matrix 31 along the axial direction of the porous matrix 31. By sleeving the main body portion 41 on the outer periphery of the assembly step 314, in this way, when the assembly step 314 extends into the nozzle end 11 or the base 20, the main body portion 41 can achieve sealing along the radial direction of the porous matrix 31, while the flanging 42 remains outside the assembly step 314 to achieve axial sealing between the porous matrix 31 and the nozzle end 11 or the base 20. Adopting this setting method can further improve the sealing effect between the porous matrix 31 and the nozzle end 11 and the base 20 and improve the sealing reliability.
[0043] In some embodiments, the nozzle end 11 of the oil cup 10 is provided with an extension portion 14 extending towards the liquid storage cavity 13. The assembly step 314 at one end of the porous matrix 31 abuts against the opening of the extension portion 14. By using the extension portion 14, on the one hand, it can meet the requirement that the nozzle of the oil cup 10 protrudes outwards for the convenience of the user. On the other hand, while the nozzle protrudes, the extension portion 14 can be used inside the nozzle to facilitate the connection between the porous matrix 31 and the nozzle, thereby reducing the assembly difficulty between the porous matrix 31 and the nozzle.
[0044] In the description of this specification, if there are descriptions of reference terms such as "an embodiment", "some examples", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", it means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0045] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application.
[0046] In the description of this application, if a patent name contains ",", it indicates a "and" relationship, rather than an "or" relationship. For example, if the patent name is "a kind of A, B", it means that the content claimed by this application is: the technical solution with the theme name of A and the technical solution with the theme name of B.
Claims
1. An atomizer, characterized in that: include An oil cup, the oil cup comprising a nozzle end and an opening end; A base, sealed to the open end of the oil cup; The atomizer core comprises a porous matrix and a heating element, wherein the porous matrix is arranged in the oil cup, the outer periphery of the porous matrix is spaced apart from the inner wall of the oil cup and forms a liquid storage cavity, the porous matrix is provided with an axial through hole, one end of the porous matrix is connected to the suction nozzle end of the oil cup so that the axial through hole is connected to the suction nozzle of the oil cup and is used to output aerosol to the suction nozzle end of the oil cup, the other end of the porous matrix is connected to the base, and the heating element is arranged on the inner wall surface of the axial through hole.
2. The atomizer according to claim 1, characterized in that: The surface of the porous matrix is provided with a filling area and a non-filling area outside the filling area, and at least a filler is provided in the filling area so that the porosity of the porous matrix in the filling area is lower than the porosity of the non-filling area. The non-filling area is used to absorb and conduct the atomized medium, and the filling area is used to prevent the atomized medium from penetrating into the surface of the porous matrix or seeping out from the surface of the porous matrix. The portion of the axial through hole where the heating element is arranged is set as the non-filling area.
3. The atomizer according to claim 2, characterized in that: The area of the heating element corresponding to the outer peripheral side of the porous matrix is a liquid absorption area, the liquid absorption area is set as the non-filling area, and the area of the outer peripheral side of the porous matrix other than the liquid absorption area is set as the filling area.
4. The atomizer according to claim 2, characterized in that: Two end surfaces of the porous matrix are configured as the filling areas.
5. The atomizer according to any one of claims 1 to 4, characterized in that: At least one end of the porous matrix is provided with an assembly step, and at least a portion of the assembly step extends into and abuts against the suction nozzle end of the oil cup or the base.
6. The atomizer according to claim 5, characterized in that: The atomizer further comprises a flexible seal, the flexible seal is provided with a vent hole, and the flexible seal is sleeved on the outer periphery of the assembly step so that the vent hole is communicated with the axial through hole; When the assembly step at one end of the porous matrix extends into the nozzle end of the oil cup, the flexible seal is used to abut against the nozzle end of the oil cup; when the assembly step at the other end of the porous matrix extends into the base, the flexible seal is used to abut against the base.
7. The atomizer according to claim 6, characterized in that: The flexible sealing member comprises a main body and a flange, the vent hole is arranged on the main body, the main body is sleeved on the outer periphery of the assembly step, and the flange is convexly arranged on the outer periphery of the main body; The main body is used to seal the porous matrix along the radial direction of the porous matrix, and the flange is used to seal the porous matrix along the axial direction of the porous matrix.
8. The atomizer according to claim 5, characterized in that: An extension portion extending toward the liquid storage cavity is provided at the nozzle end of the oil cup, and the assembly step located at one end of the porous matrix abuts against the opening of the extension portion.
9. The atomizer according to any one of claims 1 to 4, characterized in that: The atomizer core is provided with at least two heating elements, and the two heating elements are spaced apart along the axial direction of the axial through hole.
10. An electronic atomization device, characterized in that: A nebulizer comprising any one of claims 1 to 9.