Atomizing core, atomizer and electronic atomizing device

Abstract

The present invention discloses an atomizing core, an atomizer, and an electronic atomizing device thereof. The atomizing core comprises: a substrate, a supporting layer, and a heating element. The supporting layer is provided on the substrate, and a plurality of nanopores with a flow-guiding function are provided on the supporting layer; the heating element is provided on the surface of the supporting layer away from the substrate; wherein the substrate is used to support the supporting layer and transmit the substrate to be atomized to the nanopores, and the heating element is used to heat the substrate to be atomized guided through the nanopores so that the substrate to be atomized forms an aerosol. The atomizing core provided by the present application can make the substrate to be atomized evaporate to form an aerosol under low temperature conditions, avoiding chemical reactions and thermal decomposition of the substrate to be atomized under high temperature conditions to produce harmful substances.

Description

Technical Field

[0001] The present invention relates to the technical field of atomizer cores, and in particular to an atomizer core, an atomizer, and an electronic atomization device thereof. Background Art

[0002] In the prior art, the electronic atomization device is mainly composed of an atomizer and a power supply assembly. Among them, the atomizer core in the atomizer is the core component, and the atomizer core mainly includes a porous matrix and a heater. At present, the atomizer core is mainly made of cotton material and metal wire or ceramic porous body and heating film. The heat generated by the direct current through the heater is used to provide the atomization latent heat of the matrix to be atomized. The matrix to be atomized is transferred to the vicinity of the heater by capillary force in the porous medium. During the atomization process, the temperature of the heater gradually increases. When the boiling point of the matrix to be atomized is reached, the matrix to be atomized changes from liquid to vapor, mixes with air and enters the human mouth. However, the matrix to be atomized will produce harmful aldehydes and ketones during the atomization process. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide an atomizing core, an atomizer and an electronic atomizing device thereof, so as to solve the problem in the prior art that harmful substances are generated during the atomization process of the atomized matrix.

[0004] In order to solve the above technical problems, the first technical solution adopted by the present invention is: to provide an atomizer core, which includes: a substrate; a support layer, the support layer is arranged on the substrate, and a plurality of nanopores with a flow-guiding function are provided on the support layer; a heating element is arranged on the surface of the support layer away from the substrate; wherein, the substrate is used to support the support layer and transfer the matrix to be atomized to the nanopores, and the heating element is used to heat the matrix to be atomized conducted through the nanopores, so that the matrix to be atomized forms an aerosol.

[0005] The device further comprises two electrodes arranged at intervals, and the two electrodes are electrically connected to the heating element respectively.

[0006] The two electrodes are arranged on the region without nanopores on the support layer, the heating element is arranged on the region with nanopores on the support layer, and the nanopores pass through the heating element.

[0007] The heating element includes a plurality of heating films, which are arranged in parallel between two electrodes.

[0008] The heating element includes a plurality of heating films, which are arranged in series between two electrodes.

[0009] The heating film includes a plurality of sub-heating films that are spaced apart and arranged in parallel.

[0010] Among them, multiple heating films are arranged side by side and at intervals.

[0011] Wherein, the material of the heating element is metal material.

[0012] The material of the heating element is at least one or more of gold, silver, platinum, aluminum, copper and nickel.

[0013] The thickness of the heating element is 0.1 micron to 1 micron.

[0014] Wherein, the supporting layer is a hard substrate or a flexible film.

[0015] The thickness of the support layer is 0.1 micron to 1 micron.

[0016] The material of the support layer is a dense non-liquid conductive material.

[0017] The material of the support layer is at least one of dense ceramics, glass, single crystal silicon and amorphous silicon.

[0018] The nanopores are evenly arranged on the support layer and arranged in an orderly manner to form a nanopore array.

[0019] The nanopore array is at least one of a rectangular array, a circular array and a hexagonal array.

[0020] The hydraulic diameter of the nanopore is 15 to 150 nanometers.

[0021] The substrate is provided with a plurality of liquid guiding holes, which are arranged corresponding to and communicated with at least a portion of the nanopores, and are used to guide the matrix to be atomized to the nanopores.

[0022] Wherein, the plurality of liquid guide holes are through holes arranged in an array.

[0023] The diameter of the liquid-conducting hole is 1 micron to 100 microns.

[0024] The diameter of the liquid guide hole is 20 microns to 40 microns.

[0025] A liquid guiding groove is provided on one side of the substrate close to the supporting layer. The liquid guiding groove is corresponding to and connected to at least a portion of the nanopore. The liquid guiding groove is used to guide the matrix to be atomized to the nanopore.

[0026] There are multiple liquid-conducting grooves, which are arranged in parallel and at intervals or converged.

[0027] A connecting hole is provided on the side of the substrate away from the supporting layer, and the connecting hole connects the multiple liquid-conducting grooves so that the matrix to be atomized is transferred to the multiple liquid-conducting grooves through the connecting hole.

[0028] The thickness of the substrate is 0.2 mm to 1 mm.

[0029] The material of the substrate is at least one of dense ceramics, glass, single crystal silicon and amorphous silicon.

[0030] Wherein, the material of the matrix is ​​a porous material.

[0031] The porous material is at least one of porous ceramics, sponge, foam and fiber layer.

[0032] To solve the above technical problems, the second technical solution adopted by the present invention is: to provide an atomizer, which includes: a shell having a liquid storage chamber; and an atomizer core arranged at the liquid outlet of the liquid storage chamber, wherein the atomizer core is the atomizer core mentioned above.

[0033] Among them, the liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the liquid outlet of the liquid storage cavity is facing the same direction as the downward liquid of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

[0034] Among them, the liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the liquid outlet of the liquid storage cavity is opposite to the downward liquid direction of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

[0035] Among them, the liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the liquid outlet of the liquid storage cavity is perpendicular to the downward liquid direction of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

[0036] Wherein, the liquid outlet is located on the side wall of the liquid storage cavity.

[0037] In order to solve the above technical problems, the third technical solution adopted by the present invention is: to provide an electronic atomization device, which includes a battery assembly and the atomizer as described above, and the battery assembly supplies power to the atomizer.

[0038] The beneficial effects of the present invention are as follows: different from the prior art, an atomizer core, an atomizer and an electronic atomization device thereof are provided, wherein the atomizer core comprises: a substrate; a support layer, the support layer is arranged on the substrate, and a plurality of nanopores with a flow-guiding function are arranged on the support layer; a heating element is arranged on the surface of the support layer away from the substrate; wherein the substrate is used to support the support layer and transfer the substrate to be atomized to the nanopores, and the heating element is used to heat the substrate to be atomized guided through the nanopores so that the substrate to be atomized forms an aerosol. The atomizer core provided by the present application can make the substrate to be atomized evaporate to form an aerosol under low temperature conditions, avoiding chemical reactions and thermal decomposition of the substrate to be atomized under high temperature conditions to produce harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a schematic structural diagram of an embodiment of an electronic atomization device provided by the present invention;

[0041] Figure 2 This is a schematic structural diagram of an embodiment of an atomizer in an electronic atomization device provided by the present invention;

[0042] Figure 3 This is a structural diagram of an embodiment of the atomizer core provided by the present invention;

[0043] Figure 4 This is a first positional relationship diagram between the liquid storage chamber and the atomizer core provided by the present invention;

[0044] Figure 5 This is a second positional relationship diagram between the liquid storage chamber and the atomizer core provided by the present invention;

[0045] Figure 6 This is a third positional relationship diagram between the liquid storage chamber and the atomizer core provided by the present invention;

[0046] Figure 7 This is a fourth positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention;

[0047] Figure 8 This is the fifth positional relationship diagram between the liquid storage chamber and the atomizer core provided by the present invention;

[0048] Figure 9 This is a schematic diagram of the principle of the atomizing core provided by the present invention atomizing the substrate to be atomized;

[0049] FIG10( a ) is a schematic structural diagram of a first embodiment of a nanopore provided by the present invention;

[0050] FIG10( b ) is a schematic structural diagram of a second embodiment of a nanopore provided by the present invention;

[0051] FIG10( c ) is a schematic structural diagram of a third embodiment of a nanopore provided by the present invention;

[0052] Figure 11 This is a schematic structural diagram of a first embodiment of a heating element in an atomizer core provided by the present invention;

[0053] Figure 12 This is a schematic structural diagram of a second embodiment of a heating element in an atomizer core provided by the present invention;

[0054] Figure 13 This is a schematic structural diagram of a third embodiment of a heating element in an atomizer core provided by the present invention;

[0055] Figure 14 This is a schematic structural diagram of a fourth embodiment of a heating element in an atomizer core provided by the present invention;

[0056] Figure 15 This is a top view of an embodiment of the supporting layer and substrate matching structure provided by the present invention;

[0057] Figure 16 This is a structural diagram of another embodiment of the atomizer core provided by the present invention;

[0058] Figure 17 is a structural schematic diagram of a first embodiment of a base provided by the present invention;

[0059] Figure 18 is a schematic structural diagram of a second embodiment of a base provided by the present invention;

[0060] Figure 19 This is a diagram showing the positional relationship between the atomizer core and the liquid storage chamber according to an embodiment of the present invention;

[0061] Figure 20 It is a top view of another embodiment of the supporting layer and substrate matching structure provided by the present invention;

[0062] Figure 21 is a structural schematic diagram of a third embodiment of the base provided by the present invention;

[0063] Figure 22 is a schematic structural diagram of a fourth embodiment of a base provided by the present invention;

[0064] Figure 23 It is a structural schematic diagram of the fifth embodiment of the base provided by the present invention. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0066] The terms "first", "second" and "third" in the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one feature. In the description of the present invention, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. The terms "including" and "having" in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products or devices.

[0067] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of a phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0068] The inventors of this application have discovered that harmful aldehydes and ketones can be produced during the atomization process of the atomized substrate. This is because the atomized substrate is a multi-component mixture, some of which have relatively low boiling points, while the atomization temperature is typically equal to the boiling point of the component with the highest boiling point. Consequently, chemical decomposition occurs during high-temperature atomization.

[0069] Furthermore, using the boiling point of the component with the highest boiling point as the atomization temperature results in poor flavor reproduction of the atomized substrate. Prior art methods have also employed gradient temperature atomization to improve flavor reproduction of the atomized substrate. However, on the one hand, components with lower boiling points will still undergo chemical decomposition when atomized in a high-temperature zone; on the other hand, components with higher boiling points will be atomized in a low-temperature zone, resulting in low atomization efficiency.

[0070] In order to solve the above problems, the inventors of the present application have developed a low-temperature atomization technology and provided an atomization core suitable for low-temperature atomization, as well as an atomizer and an electronic atomization device using the atomization core.

[0071] See also Figure 1 , Figure 1It is a structural schematic diagram of an embodiment of the electronic atomization device provided by the present invention. The electronic atomization device can be used for atomization of liquid matrices. The electronic atomization device includes an atomizer 1 and a power supply assembly 2 that are interconnected. The atomizer 1 is used to store the matrix to be atomized and atomize the matrix to be atomized to form an aerosol that can be inhaled by the user. The matrix to be atomized can be a liquid matrix such as a liquid medicine, a liquid of plant leaves, etc. The atomizer 1 can be specifically used in different fields, such as medical treatment, electronic aerosolization, etc. The power supply assembly 2 includes a battery (not shown), an airflow sensor (not shown), and a controller (not shown), etc.; the battery is used to power the atomizer 1 so that the atomizer 1 can atomize the matrix to be atomized to form an aerosol; the airflow sensor is used to detect airflow changes in the electronic atomization device, and the controller starts the electronic atomization device according to the airflow changes detected by the airflow sensor. The atomizer 1 and the power supply assembly 2 can be an integral arrangement or a detachable connection, and can be designed according to specific needs. Of course, the electronic atomization device also includes other components in the existing electronic atomization device, such as a microphone head, a bracket, etc. The specific structures and functions of these components are the same or similar to those in the existing technology. Please refer to the existing technology for details and will not be repeated here.

[0072] See also Figure 2 , Figure 2 It is a structural schematic diagram of an embodiment of an atomizer in the electronic atomization device provided by the present invention. The atomizer 1 includes a suction nozzle 10, a shell 11, an atomizing core 12, and a mist outlet channel 13. The shell 11 has a liquid storage chamber 111. The liquid storage chamber 111 is used to store the matrix to be atomized, and the liquid storage chamber 111 has a liquid outlet 112. The atomizing core 12 is arranged at the liquid outlet 112 of the liquid storage chamber 111. The atomizing core 12 is used to atomize the matrix to be atomized in the liquid storage chamber 111. In one embodiment, at least part of the atomizing core 12 is accommodated in the shell 11, and a lower liquid channel 14 is formed between the liquid storage chamber 111 and the atomizing core 12 to guide the liquid in the liquid storage chamber 111 to the atomizing core 12. The aerosol atomized by the atomizing core 12 reaches the suction nozzle 10 through the mist outlet channel 13 and is inhaled by the user. Among them, the atomizing core 12 is electrically connected to the power supply component 2 to heat and atomize the matrix to be atomized.

[0073] See Figure 3 , Figure 3It is a structural schematic diagram of an embodiment of the atomizer core provided by the present invention. In a specific embodiment, the atomizer core 12 includes a substrate 126, a support layer 121 and a heating element 123. The support layer 121 is arranged on the substrate 126 to support the support layer 126. A plurality of nanopores 122 with a diversion function are provided on the support layer 121; the substrate 126 can transfer the matrix to be atomized into the nanopores 122. The heating element 123 is provided on the surface of the support layer 121 away from the substrate 126. The heating element 123 is used to heat the matrix to be atomized guided through the nanopores 122 so that the matrix to be atomized forms an aerosol. The surface of the support layer 121 on which the heating element 123 is provided forms the atomization surface of the atomizer core 12. In the present invention, nanopores refer to nanoscale through holes with a pore size range of 1 to 999 nanometers.

[0074] It is understood that the positional relationship between the liquid storage chamber 111 and the atomizer core 12 is not limited, as long as the atomizer core 12 is located at the liquid outlet 112 of the liquid storage chamber 111. The atomizer core 12 can be arranged outside or inside the liquid storage chamber 111 and cover the liquid outlet 112 of the liquid storage chamber 111. The atomizer core 12 can directly cover the outer surface of the liquid outlet 112 of the liquid storage chamber 111. The atomizer core 12 can also be directly embedded in the liquid storage chamber 111 and arranged on the inner surface of the liquid outlet 112 of the liquid storage chamber 111 to cover the liquid outlet 112 of the liquid storage chamber 111.

[0075] Specifically, the bottom wall, top wall, or side wall of the liquid storage chamber 111 can be provided with a plurality of micropores and directly used as the substrate 126, and the support layer 121 and the heating element 123 can be directly disposed on the bottom wall, top wall, or side wall of the liquid storage chamber 111. The substrate 126 can also be disposed as an independent unit at the liquid outlet 112 of the liquid storage chamber 111.

[0076] See Figure 4 , Figure 4This is a first positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention. Specifically, the liquid outlet 112 of the liquid storage chamber 111 can be located at the bottom of the liquid storage chamber 111, and the liquid outlet 112 of the liquid storage chamber 111 faces the same direction as the downward liquid flow of the liquid storage chamber 111; the atomizer core 12 is located at the liquid outlet 112 of the liquid storage chamber 111. When the liquid outlet 112 of the liquid storage chamber 111 is provided on the bottom wall of the liquid storage chamber 111, the bottom wall of the liquid storage chamber 111 can be used as a base 126, and the support layer 121 is provided on the outside of the bottom wall of the liquid storage chamber 111, and the heating element 123 is located on the side of the support layer 121 away from the liquid outlet 112. In a specific embodiment, the downward liquid flow direction of the liquid storage chamber 111 and the liquid outlet direction of the liquid outlet 112 are both parallel to the central axis of the atomizer 1 and toward the direction of the power supply assembly 2. That is, when the atomizer 1 is placed perpendicular to a horizontal plane, the downward direction of the liquid in the liquid storage chamber 111 is the direction of gravity of the liquid in the liquid storage chamber 111, and the liquid outlet 112 is also in the direction of gravity of the liquid in the liquid storage chamber 111. In this embodiment, the atomizing chamber (not shown) of the atomizer 1 is located on the side of the atomizer core 12 away from the liquid storage chamber 111, with the atomizing surface of the atomizer core 12 facing downward.

[0077] See Figure 5 , Figure 5This is a second positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention. Specifically, the liquid outlet 112 of the liquid storage chamber 111 can be located at the bottom of the liquid storage chamber 111, and the liquid outlet 112 of the liquid storage chamber 111 is opposite to the downward direction of the liquid in the liquid storage chamber 111; the atomizer core 12 is located at the liquid outlet 112 of the liquid storage chamber 111. In a specific embodiment, the downward direction of the liquid in the liquid storage chamber 111 is parallel to the central axis of the atomizer 1 and toward the direction of the power supply assembly 2, and the liquid outlet direction of the liquid outlet 112 is parallel to the central axis of the atomizer 1 and toward the direction of the mouthpiece 10. That is, when the atomizer 1 is placed perpendicular to the horizontal plane, the downward direction of the liquid in the liquid storage chamber 111 can be the gravity direction of the liquid in the liquid storage chamber 111, and the liquid outlet direction of the liquid outlet 112 can be exactly opposite to the gravity direction of the liquid in the liquid storage chamber 111. For example, the bottom of the liquid storage chamber 111 is a closed end, the bottom side of the liquid storage chamber 111 has a liquid outlet chamber 113 that is in communication with the liquid storage chamber 111, and the top surface of the liquid outlet chamber 113 has a liquid outlet 112. When the liquid outlet 112 of the liquid storage chamber 111 is disposed on the top surface of the liquid outlet chamber 113, the top surface of the liquid outlet chamber 113 can serve as the base 126, the support layer 121 is disposed outside the top surface of the liquid outlet chamber 113, and the heating element 123 is located on the side of the support layer 121 away from the liquid outlet 112. Specifically, the liquid storage chamber 111 can be an annular structure with a closed bottom end, the inner side surface of the bottom of the annular liquid storage chamber 111 has a liquid outlet chamber 113 that is in communication with the liquid storage chamber 111, and the top surface of the liquid outlet chamber 113 has a liquid outlet 112. In this embodiment, the atomizing surface of the atomizer core 12 faces upward. The atomizing chamber (not shown) of the atomizer 1 is disposed on a side of the atomizer core 12 away from the liquid outlet 112 and is arranged side by side with the liquid storage chamber 111 or surrounded by the liquid storage chamber 111.

[0078] See Figure 6 , Figure 6This is a third positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention. Specifically, the liquid outlet 112 of the liquid storage chamber 111 can be located at the bottom of the liquid storage chamber 111, and the liquid outlet 112 of the liquid storage chamber 111 is oriented at an angle greater than 0 degrees and less than or equal to 90 degrees to the downward liquid direction of the liquid storage chamber 111. Specifically, the liquid outlet 112 of the liquid storage chamber 111 is oriented at an angle of 60 degrees to 90 degrees to the downward liquid direction of the liquid storage chamber 111. The atomizer core 12 is located at the liquid outlet 112 of the liquid storage chamber 111. In a preferred embodiment, the liquid outlet 112 of the liquid storage chamber 111 is oriented perpendicular to the downward liquid direction of the liquid storage chamber 111. In a specific embodiment, the downward liquid direction of the liquid storage chamber 111 is parallel to the central axis of the atomizer 1 and away from the nozzle 10, and the liquid outlet direction of the liquid outlet 112 is perpendicular to the central axis of the atomizer 1. That is, when the atomizer 1 is placed perpendicular to a horizontal plane, the downward direction of the liquid storage chamber 111 is the gravity direction of the liquid in the liquid storage chamber 111, and the liquid outlet direction of the liquid outlet 112 is exactly perpendicular to the gravity direction of the liquid in the liquid storage chamber 111. Figure 6 The bottom of the liquid storage chamber 111 is a closed end, and the liquid outlet 112 is located on the side wall of the liquid storage chamber 111 near the bottom. When the liquid outlet 112 of the liquid storage chamber 111 is located on the side wall of the liquid storage chamber 111 near the bottom, the side wall of the liquid storage chamber 111 can serve as the base 126, and the support layer 121 is located on the outer side wall of the liquid storage chamber 111 near the bottom. The heating element 123 is located on the side of the support layer 121 away from the liquid outlet 112. The atomizer core 12 is located on the side wall of the liquid storage chamber 111 and covers the liquid outlet 112. When the liquid storage chamber 111 is barrel-shaped, the atomizer core 12 can be arranged around the liquid storage chamber 111. When the liquid storage chamber 111 is annular, the atomizer core 12 can be arranged around the inner or outer wall of the annular liquid storage chamber 111.

[0079] See Figure 7 , Figure 7This is the fourth positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention. Specifically, the liquid outlet 112 of the liquid storage chamber 111 can be located at the bottom of the liquid storage chamber 111, and the liquid outlet 112 of the liquid storage chamber 111 is oriented at an angle greater than 0 degrees and less than or equal to 90 degrees to the downward liquid direction of the liquid storage chamber 111. Specifically, the liquid outlet 112 of the liquid storage chamber 111 is oriented at an angle of 60 degrees to 90 degrees to the downward liquid direction of the liquid storage chamber 111. The atomizer core 12 is located at the liquid outlet 112 of the liquid storage chamber 111, and the heating element 123 is located on the side of the support layer 121 away from the liquid outlet 112. Specifically, the base 126 is located at the liquid outlet 112 of the liquid storage chamber 111, and the base 126 can be arranged on the side of the support layer 121 away from the heating element 123. In a preferred embodiment, the liquid outlet 112 of the liquid storage chamber 111 is oriented perpendicular to the direction of liquid flow from the liquid storage chamber 111 and is disposed correspondingly to the communication hole 129. The liquid in the liquid storage chamber 111 enters the liquid guide groove 128 through the liquid outlet 112 and the communication hole 129, and is directed by the liquid guide groove 128 to the nanopore 122. In a specific embodiment, the direction of liquid flow from the liquid storage chamber 111 is parallel to the central axis of the atomizer 1 and away from the nozzle 10, and the direction of liquid discharge from the liquid outlet 112 is perpendicular to the central axis of the atomizer 1. That is, when the atomizer 1 is placed perpendicular to a horizontal plane, the direction of liquid flow from the liquid storage chamber 111 can be the direction of gravity of the liquid in the liquid storage chamber 111, and the direction of liquid discharge from the liquid outlet 112 is exactly perpendicular to the direction of gravity of the liquid in the liquid storage chamber 111.

[0080] See Figure 8 , Figure 8This is a fifth positional relationship diagram of the liquid storage chamber and the atomizer core provided by the present invention. In an optional embodiment, a portion of a side surface of the base 126 is located at the liquid outlet 112 of the liquid storage chamber 111. A liquid guide groove 128 is provided on the side surface of the base 126 near the liquid storage chamber 111, and both ends of the liquid guide groove 128 are closed. The liquid outlet 112 of the liquid storage chamber 111 partially covers the liquid guide groove 128, and the liquid outlet 112 is connected to the liquid guide groove 128. The side of the base 126 where the liquid guide groove 128 is provided is also covered with a support layer 121. The support layer 121 covers the portion of the liquid guide groove 128 that does not cover the liquid storage chamber 111. The support layer 121 and the liquid outlet 112 of the liquid storage chamber 111 cooperate to completely cover the opening of the liquid guide groove 128. A heating element 123 is provided on the side of the support layer 121 away from the base 126. In a preferred embodiment, the liquid outlet 112 of the liquid storage chamber 111 is oriented parallel to the downward direction of the liquid flow from the liquid storage chamber 111, and the liquid guide groove 128 is arranged perpendicular to the direction of the liquid outlet 112 of the liquid storage chamber 111. The substrate to be atomized in the liquid storage chamber 111 is transferred through the liquid outlet 112 to the liquid guide groove 128 covered by it. The liquid guide groove 128 covered by the liquid storage chamber 111 transfers the substrate to be atomized to the portion of the liquid guide groove 128 covered by the support layer 121. The nanopores 122 on the support layer 121 transfer the substrate to be atomized in the liquid guide groove 128 to the side of the support layer 121 near the heating element 123 through capillary force, so that the heating element 123 can heat and atomize the substrate to be atomized.

[0081] See Figure 9 , Figure 9 : This is a schematic diagram of the principle of atomizing the substrate to be atomized by the atomizing core provided by the present invention. Among them, the substrate to be atomized in the liquid storage chamber 111 is transferred to the nanopore 122 provided on the supporting layer 121 through the liquid outlet 112, and the substrate to be atomized in the nanopore 122 is conducted from the side close to the liquid storage chamber 111 to the side of the nanopore 122 close to the heating element 123, so that the heating element 123 heats the substrate to be atomized in the atomizing nanopore 122 and the substrate to be atomized on the interface with the air, and heats the substrate to be atomized to form an aerosol. This method can achieve low-temperature atomization of liquids below the boiling point. Specifically, the substrate to be atomized can be atomized below 250 degrees. For example, atomization is performed between 150 and 250 degrees. It can be understood that the atomization temperature needs to be specifically set according to the components of the substrate to be atomized.

[0082] Specifically, the shape of the support layer 121 is not limited and can be a flat plate, curved into an arc, or an annular structure, such as a ring. The material of the support layer 121 is a dense, non-liquid-conductive material. The support layer 121 can be a rigid substrate or a flexible film. Specifically, the rigid substrate can be made of at least one or more of dense ceramic, glass, single crystal silicon, and amorphous silicon, while the flexible film can be made of a polymer.

[0083] See also Figures 10(a) to 14 10( a ) is a schematic structural diagram of a first embodiment of a nanopore provided by the present invention; FIG. 10( b ) is a schematic structural diagram of a second embodiment of a nanopore provided by the present invention; FIG. 10( c ) is a schematic structural diagram of a third embodiment of a nanopore provided by the present invention;

[0084] Figure 11 FIG12 is a schematic structural diagram of a first embodiment of a heating element in an atomizer core provided by the present invention; FIG13 is a schematic structural diagram of a second embodiment of a heating element in an atomizer core provided by the present invention; Figure 13 This is a schematic structural diagram of a third embodiment of a heating element in an atomizer core provided by the present invention; Figure 14 1 is a schematic structural diagram of a fourth embodiment of a heating element in an atomizer core provided by the present invention.

[0085] In one embodiment, the nanopore 122 is a through hole that penetrates the support layer 121. The cross-sectional shape of the nanopore 122 can be triangular, rectangular, elliptical, hexagonal, or trapezoidal, or can be designed into other shapes according to actual conditions. There is no limitation on the shape of the nanopore 122. The shape and size of the nanopore 122 are not limited, as long as the hydraulic diameter of the nanopore 122 is 15 nm to 150 nm. In other embodiments, please refer to Figure 3 as well as Figure 10(a) to Figure 10(c) The longitudinal cross-section of the nanopore 122 can be rectangular, trapezoidal, dumbbell-shaped with large ends and a small middle, etc.; the extension direction of the nanopore 122 can be perpendicular to the thickness direction of the support layer 121, or the extension direction of the nanopore 122 can form an angle with the thickness direction of the support layer 121, and the angle ranges from 45 degrees to 90 degrees.

[0086] The nanopores 122 can be evenly arranged on the support layer 121 and arranged in an orderly manner to form a nanopore array. The nanopore array can be at least one of a rectangular array, a circular array, and a hexagonal array. In another optional embodiment, the nanopores 122 can also be evenly arranged on the support layer 121 but arranged in a disordered manner. The density of the nanopores 122 is not limited as long as low-temperature evaporation and atomization can be achieved. The ratio of the center distance between adjacent nanopores 122 to the pore diameter can be greater than 1 and less than or equal to 100. Preferably, for example, the ratio of the center distance between adjacent nanopores 122 to the pore diameter is greater than or equal to 2 and less than or equal to 50.

[0087] In an alternative embodiment, see Figure 11-13 , multiple nanopores 122 are arranged in a rectangular array. In an optional embodiment, see Figure 14 The plurality of nanopores 122 can be staggered and arranged in a hexagonal array on the support layer 121 so that the substrate to be atomized reaches the side of the support layer 121 where the heating element 123 is provided more evenly, thereby achieving uniform liquid discharge.

[0088] Among them, the material of the heating element 123 can be a metal or alloy material. Specifically, the material of the heating element 123 can be at least one or more of gold, silver, platinum, aluminum, copper, and nickel. The thickness of the heating element 123 can be 0.1 microns to 1 micron. In another optional embodiment, the thickness of the heating element 123 can be 0.1 microns to 0.5 microns. It can be understood that since the present application adopts low-temperature atomization technology, the power of the atomization core 12 is relatively small, and the resistance of the heating element 123 can be greater than the resistance of the heating element 123 of the atomization core 12 of high-temperature atomization, so the thickness of the heating element 123 can be thinner. The thinning of the heating element 123 can reduce the heat absorption of the heating element 123 itself, reduce the electric heat loss, and the atomization core 12 heats up quickly.

[0089] The heating element 123 is a metal heating film, which can be in the form of a sheet, mesh, or strip. Since this application uses low-temperature atomization technology and the thickness of the heating element 123 can be 0.1 micron to 0.5 micron, the metal heating film is preferably in sheet form and covers the entire surface of the support layer 121. This not only simplifies the preparation process but also ensures a uniform atomization temperature across the entire atomizer core 12.

[0090] In another alternative embodiment, see Figures 11 to 14 The atomizer core 12 also includes two electrodes 131 spaced apart. The two electrodes 131 are electrically connected to the heating element 123 respectively, and are used to connect to the lead and supply power to the heating element 123. Specifically, the two electrodes 131 are arranged in an area on the support layer 121 without the nanopores 122, and the heating element 123 is arranged in an area on the support layer 121 with the nanopores 122. The nanopores 122 pass through the heating element 123 so that the substrate to be atomized conducted through the nanopores 122 can reach the side of the heating element 123 away from the support layer 121 and be atomized, and the aerosol generated after atomization in the nanopores 122 can be transmitted to the side of the heating element 123 away from the support layer 121. The material of the electrode 131 and the heating element 123 can be the same, and the electrode 131 and the heating element 123 can be formed on the surface of the support layer 121 at the same time by physical vapor deposition or chemical vapor deposition. In order to reduce the ohmic contact between the electrode 131 and the ejector pin, a low-ohmic contact material can also be deposited on the surface of the electrode 131.

[0091] The atomizer core 12 of the present application can increase the heat transfer area of ​​the heating element 123 by providing the nanopores 122, thereby enhancing the evaporation rate of the substrate to be atomized, and preventing the boiling of the substrate to be atomized, thereby preventing the chemical decomposition of components with lower boiling points in the substrate to be atomized, thereby preventing the production of harmful aldehydes and ketones, and thereby improving the taste restoration of flavors and terpenes in the substrate to be atomized.

[0092] In one embodiment, see Figure 11 The heating element 123 includes a plurality of heating films 124, which are arranged in parallel between the two electrodes 131 to make the temperature of the plurality of heating films 124 more uniform. The plurality of heating films 124 have a more uniform temperature when heating and atomizing the substrate to be atomized. Specifically, the two electrodes 131 are strip-shaped and arranged in parallel and spaced apart. The plurality of heating films 124 can be arranged in parallel and spaced apart on the support layer 121 and located between the two electrodes 131. Furthermore, a strip-shaped through hole or groove parallel to the heating film 124 can be provided between two adjacent heating films 124.

[0093] In another embodiment, see Figure 12 The heating element 123 includes multiple heating films 124, which can be arranged in series between the two electrodes 131. Specifically, the multiple heating films 124 can be arranged in parallel and spaced apart on the support layer 121, connected end to end, forming a serpentine structure, with the two electrodes 131 respectively positioned at either end of the serpentine structure. Furthermore, the support layer 121 can also be provided with multiple notches parallel to the heating films 124, with the multiple notches alternating with the multiple heating films 124, thereby dividing the support layer 121 into the serpentine structure.

[0094] Each heating film 124 may include a plurality of sub-heating films 125 arranged in parallel or in series. Figure 13 Each heating film 124 arranged in series can include multiple sub-heating films 125 spaced apart and arranged in parallel, so that after the sub-heating films 125 are connected in parallel, the multiple heating films 124 are connected in series, so that the temperature area on the heating film 124 is diversified, which can better heat the atomized matrix to be atomized and improve the user's taste.

[0095] See also Figure 15 , Figure 15 This is a top view of an embodiment of the support layer and substrate structure provided by the present invention. When the atomizer core 12 is in use, the substrate 126 can be disposed on the side of the support layer 121 near the liquid storage chamber 111. The substrate 126 can be used to support the support layer 121 and transfer the atomized matrix to the nanopores 122.

[0096] In an alternative embodiment, the material of substrate 126 can be a dense material, which can be at least one of dense ceramic, glass, single crystal silicon, and amorphous silicon. In another alternative embodiment, the material of substrate 126 can also be a porous material. The porous material can be at least one of porous ceramic, sponge, foam, and fiber layer. The thickness of substrate 126 is 0.2 mm to 1 mm. The shape and size of substrate 126 can be the same as those of support layer 121, or larger than the size of support layer 121.

[0097] When the base 126 is made of dense material, it is necessary to open a liquid guide structure in the base 126. In another optional embodiment, see Figure 3 The base 126 is provided with a plurality of liquid-guiding holes 127. These liquid-guiding holes 127 correspond to and are interconnected with at least a portion of the nanopores 122. These liquid-guiding holes 127 are used to guide the atomized substrate in the liquid storage chamber 111 to the nanopores 122. The diameter of the liquid-guiding holes 127 ranges from 1 to 100 microns. In a preferred embodiment, the diameter of the liquid-guiding holes 127 ranges from 20 to 40 microns. The cross-sectional shape and arrangement of the liquid-guiding holes 127 are not limited and can be the same as or different from the shape and arrangement of the nanopores 122. Because the diameter of the liquid-guiding holes 127 is larger than that of the nanopores 122, one liquid-guiding hole 127 can correspond to multiple nanopores 122. The liquid-guiding holes 127 exert capillary force, which guides the atomized substrate from the liquid storage chamber 111 to the nanopores 122 in the support layer 121.

[0098] In a preferred embodiment, see Figure 15 , nanopores 122 are only provided in the portion corresponding to the liquid guide holes 127 of the support layer 121 and the substrate 126, that is, the nanopores 122 are arranged in different regions on the support layer 121, rather than being evenly distributed on the entire support layer 121, thereby increasing the strength of the support layer 121. The inventors of the present application have found that when the atomizer core 12 is in use, the rate at which the heating element 123 heats the substrate to be atomized to form an aerosol is too fast, which easily causes the aerosol and / or air in the atomization chamber to penetrate deeply and penetrate the support layer 121 and flow back into the liquid storage chamber 111, thereby causing the aerosol to block the nanopores 122, resulting in insufficient liquid supply due to re-evaporation. By providing the substrate 126 and providing the liquid guide holes 127 on the substrate 126, the flow of the substrate to be atomized from the liquid storage chamber 111 to the nanopores 122 of the support layer 121 can be increased, and the flow resistance of the substrate to be atomized in the liquid guide direction can be increased, thereby avoiding the above-mentioned problems.

[0099] Compared to heating elements 123 using cotton wicks and porous ceramics, the thin-sheet substrate 126 with liquid-conducting holes 127 provided in this application has a shorter liquid supply channel and a faster liquid supply rate, but also carries a greater risk of leakage. Therefore, the inventors of this application studied the effects of the thickness of the substrate 126 and the diameter of the liquid-conducting holes 127 on the liquid conduction of the substrate 126. The results showed that increasing the thickness of the substrate 126 and decreasing the diameter of the liquid-conducting holes 127 can reduce the risk of leakage but also reduce the liquid supply rate. Reducing the thickness of the substrate 126 and increasing the diameter of the liquid-conducting holes 127 can increase the liquid supply rate but also increase the risk of leakage, creating a conflicting relationship. Therefore, this application designs the thickness of the substrate 126, the diameter of the liquid-conducting holes 127, and the ratio of the thickness of the substrate 126 to the diameter of the liquid-conducting holes 127, so that the substrate 126 can both achieve sufficient liquid supply and prevent leakage.

[0100] In addition, the inventors of the present application studied the ratio of the hole center distance of adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127, and found that if the ratio of the hole center distance of adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127 is too large, the strength of the base 126 is greater and it is easier to process, but the porosity is too small, which easily leads to insufficient liquid supply; if the ratio of the hole center distance of adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127 is too small, the porosity is larger and the liquid supply is sufficient, but the strength of the base 126 is smaller and it is not easy to process; for this reason, the present application also designs the ratio of the hole center distance of adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127, so as to improve the strength of the base 126 as much as possible while meeting the liquid supply capacity.

[0101] Specifically, the thickness of the base 126 is 0.1 mm to 1 mm. When the thickness of the base 126 is greater than 1 mm, it cannot meet the liquid supply demand, resulting in a decrease in the amount of aerosol, and the resulting heat loss is large, and the cost of setting the liquid guide hole 127 is high; when the thickness of the base 126 is less than 0.1 mm, the strength of the base 126 cannot be guaranteed, which is not conducive to improving the performance of the electronic atomization device. Preferably, the thickness of the base 126 is 0.2 mm to 0.5 mm. The aperture of the liquid guide hole 127 on the base 126 is 1 micron to 100 microns. When the aperture of the liquid guide hole 127 is less than 1 micron, it cannot meet the liquid supply demand, resulting in a decrease in the amount of aerosol; when the aperture of the liquid guide hole 127 is greater than 100 microns, the aerosol-generating matrix easily flows out of the liquid guide hole 127 to the atomization core 12, causing leakage, resulting in a decrease in atomization efficiency. Preferably, the aperture of the liquid guide hole 127 is 20 microns to 50 microns. It will be appreciated that the thickness of the base 126 and the diameter of the liquid-conducting hole 127 are selected based on practical needs. The liquid-conducting hole 127 can be a straight through hole with a uniform or non-uniform diameter, as long as the diameter variation is within 50%. For example, due to manufacturing process limitations, the liquid-conducting hole 127 created in glass via laser induction and etching typically has a larger diameter at the ends and a smaller diameter in the middle. Therefore, it is sufficient to ensure that the diameter of the middle portion of the liquid-conducting hole 127 is no less than half the diameter of the end ports.

[0102] The ratio of the thickness of the substrate 126 to the diameter of the liquid-conducting holes 127 is 20:1-3:1; preferably, the ratio is 15:1-5:1. When the ratio of the thickness of the substrate 126 to the diameter of the liquid-conducting holes 127 is greater than 20:1, the aerosol-generating matrix supplied by the capillary force of the liquid-conducting holes 127 is unable to meet the atomization demand of the heating element 123, which not only easily leads to dry burning but also reduces the amount of aerosol generated by a single atomization. When the ratio of the thickness of the substrate 126 to the diameter of the liquid-conducting holes 127 is less than 3:1, the aerosol-generating matrix easily flows out of the liquid-conducting holes 127 into the atomizer core 12, wasting the aerosol-generating matrix, resulting in a decrease in atomization efficiency and a reduction in the total aerosol volume.

[0103] The ratio of the hole center distance between two adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127 is 3:1-1.5:1, so that the liquid guide holes 127 on the base 126 can improve the strength of the base 126 as much as possible while meeting the liquid supply capacity; preferably, the ratio of the hole center distance between two adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127 is 3:1-2:1; more preferably, the ratio of the hole center distance between two adjacent liquid guide holes 127 to the aperture of the liquid guide holes 127 is 3:1-2.5:1.

[0104] In a specific embodiment, preferably, the ratio of the thickness of the base 126 to the diameter of the liquid guide hole 127 is 15:1-5:1, and the ratio of the center distance between two adjacent liquid guide holes 127 to the diameter of the liquid guide hole 127 is 3:1-2.5:1.

[0105] See also Figure 16 and Figure 20 , Figure 16 This is a structural diagram of another embodiment of the atomizer core provided by the present invention; Figure 17 is a structural schematic diagram of a first embodiment of a base provided by the present invention; Figure 18 is a schematic structural diagram of a second embodiment of a base provided by the present invention; Figure 19 This is a diagram showing the positional relationship between the atomizer core and the liquid storage chamber according to an embodiment of the present invention; Figure 20 It is a top view of another embodiment of the supporting layer and substrate matching structure provided by the present invention.

[0106] In another alternative embodiment, see Figure 16 The substrate 126 is provided with a liquid guiding groove 128 on one side close to the support layer 121. The liquid guiding groove 128 is arranged corresponding to and connected to at least a portion of the nanopore 122. The liquid guiding groove 128 is used to guide the substrate to be atomized into the nanopore 122. There are multiple liquid guiding grooves 128, and the arrangement and distribution of the multiple liquid guiding grooves 128 are not limited. Figure 17 For example, a plurality of liquid-conducting grooves 128 can be arranged in parallel and spaced apart on the surface of the substrate 126 close to the support layer 121, or, see Figure 18 , the plurality of liquid-conducting grooves 128 can also be arranged in a convergent state or a radial state on the surface of the base 126 close to the support layer 121. In one embodiment, see Figures 17 to 19The liquid guide groove 128 is a through groove. The atomizer core 12 is disposed within the liquid storage chamber 111, or at least the base 126 of the atomizer core 12 is disposed within the liquid storage chamber 111, so that at least one end of the liquid guide groove 128 is in communication with the liquid storage chamber 111, thereby directing the substrate to be atomized stored in the liquid storage chamber 111 to the nanopores 122 through the liquid guide groove 128. The width of the liquid guide groove 128 is 1 micron to 100 microns. In a preferred embodiment, the width of the liquid guide groove 128 can be 20 microns to 40 microns. The liquid guide groove 128 has a capillary force that can guide the substrate to be atomized from the liquid storage chamber 111 to the nanopores 122 of the support layer 121 through the capillary force.

[0107] In a preferred embodiment, see Figure 20 , nanopores 122 are only provided in the portion of the support layer 121 corresponding to the liquid guide groove 128 of the base 126, that is, the nanopores 122 are provided in different regions on the support layer 121, rather than being evenly distributed throughout the support layer 121, thereby increasing the strength of the support layer 121. The inventors of the present application have discovered that by providing the base 126 and providing the liquid guide groove 128 on the base 126, the flow of the substrate to be atomized from the liquid storage chamber 111 to the nanopores 122 of the support layer 121 can be increased, and the flow resistance of the substrate to be atomized in the liquid guide direction can be increased, thereby avoiding the phenomenon of aerosol clogging the nanopores 122 and insufficient liquid supply due to re-evaporation caused by the heating element 123 heating the substrate to be atomized too quickly to form an aerosol; at the same time, the liquid return resistance of the substrate to be atomized can be increased, thereby preventing air or aerosol from directly entering the liquid storage chamber 111 through the nanopore 122 and causing air backflow, thereby ensuring the continuity of multiple inhalations.

[0108] See Figures 21 to 23 , Figure 21 is a structural schematic diagram of a third embodiment of the base provided by the present invention; Figure 22 is a schematic structural diagram of a fourth embodiment of a base provided by the present invention; Figure 23 1 is a schematic structural diagram of the fifth embodiment of the substrate provided by the present invention. The two ends of the liquid guide groove 128 on the substrate 126 can be closed ends. In another optional embodiment, see Figures 21 to 23 The base 126 is provided with a connecting hole 129 on one side away from the supporting layer 121. The connecting hole 129 connects the plurality of liquid guiding grooves 128 so that the substrate to be atomized is transferred to the plurality of liquid guiding grooves 128 through the connecting hole 129. Figure 23A connecting groove 130 is provided on one side of the base 126 where the liquid guiding groove 128 is provided. The connecting groove 130 connects the multiple liquid guiding grooves 128. A connecting hole 129 is provided at the bottom of the connecting groove 130. The connecting hole 129 extends to the surface of the base 126 on the side away from the support layer 121, and is used to connect the liquid storage chamber 111 and the connecting groove 130, so that the matrix to be atomized is transferred to the connecting groove 130 through the connecting hole 129, and then transferred to the liquid guiding groove 128 connected to the connecting groove 130 through the connecting groove 130, thereby avoiding insufficient liquid supply to some nanopores 122 on the support layer 121, resulting in dry burning.

[0109] This embodiment provides an electronic atomization device, wherein the atomization core comprises: a support layer having a plurality of nanopores with a flow-guiding function; and a heating element disposed on the support layer for heating a substrate to be atomized that is guided through the nanopores, thereby forming an aerosol from the substrate to be atomized. The atomization core provided in this application can evaporate the substrate to be atomized to form an aerosol under low-temperature conditions, thereby avoiding chemical reactions and thermal decomposition of the substrate to be atomized under high-temperature conditions to produce harmful substances.

[0110] The above description is only an embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present invention.

Claims

1. An atomizer core, characterized in that: The atomizing core comprises: matrix; A support layer, the support layer being disposed on the substrate and having a plurality of support layer nanopores having a flow-guiding function; A heating element is provided on a surface of the support layer away from the substrate; The substrate is used to support the support layer and transfer the matrix to be atomized into the nanopores of the support layer. The heating element is used to heat the matrix to be atomized that is guided through the nanopores to form an aerosol. A liquid guide groove is provided on one side of the substrate close to the supporting layer, and the nanopore is provided only on the area of ​​the supporting layer corresponding to the liquid guide groove. The liquid guide groove is arranged corresponding to and connected to the nanopore, and the liquid guide groove is used to guide the matrix to be atomized to the nanopore.

2. The atomizer core according to claim 1, characterized in that The heating element is a thin film, and the thin film forms thin film nanopores corresponding to the nanopores of the supporting layer.

3. The atomizer core according to claim 2, characterized in that It also includes two electrodes arranged at intervals, which are electrically connected to the heating element respectively. The two electrodes are arranged in the area of ​​the support layer without the nanopores, and the heating element is arranged in the area of ​​the support layer with the nanopores.

4. The atomizer core according to claim 3, characterized in that The heating element includes a plurality of heating films, and the plurality of heating films are arranged in parallel between the two electrodes.

5. The atomizer core according to claim 3, characterized in that The heating element includes a plurality of heating films, and the plurality of heating films are arranged in series between the two electrodes.

6. The atomizer core according to claim 5, characterized in that The heating film includes a plurality of sub-heating films that are spaced apart and arranged in parallel.

7. The atomizer core according to claim 4 or 5, characterized in that: The plurality of heat-generating films are arranged side by side and at intervals.

8. The atomizer core according to claim 1, characterized in that The heating element is made of metal.

9. The atomizer core according to claim 1, characterized in that The material of the heating element is at least one or more of gold, silver, platinum, aluminum, copper, and nickel.

10. The atomizer core according to claim 1, characterized in that The thickness of the heating element is 0.1 micron to 1 micron.

11. The atomizer core according to claim 1, characterized in that: The supporting layer is a hard substrate or a flexible film.

12. The atomizer core according to claim 1, characterized in that The thickness of the support layer is 0.1 micron to 1 micron.

13. The atomizer core according to claim 1, characterized in that The material of the support layer is a dense liquid-non-conductive material.

14. The atomizer core according to claim 1, characterized in that The material of the support layer is at least one of dense ceramics, glass, single crystal silicon and amorphous silicon.

15. The atomizer core according to claim 1, characterized in that The nanopores are evenly arranged on the support layer and arranged in an orderly manner to form a nanopore array.

16. The atomizer core according to claim 15, characterized in that The nanopore array is at least one of a rectangular array, a circular array and a hexagonal array.

17. The atomizer core according to claim 1, characterized in that The hydraulic diameter of the nanopore is 15 nanometers to 150 nanometers.

18. The atomizer core according to claim 1, characterized in that The base is provided with a plurality of liquid guiding holes, which are arranged corresponding to and communicated with at least a portion of the nanopores, and are used to guide the matrix to be atomized to the nanopores.

19. The atomizer core according to claim 18, characterized in that The multiple liquid-conducting holes are through holes arranged in an array.

20. The atomizer core according to claim 18, characterized in that The diameter of the liquid guide hole is 1 micron to 100 microns.

21. The atomizer core according to claim 18, characterized in that The diameter of the liquid guide hole is 20 microns to 40 microns.

22. The atomizer core according to claim 1, characterized in that There are multiple liquid-conducting grooves, and the multiple liquid-conducting grooves are arranged in parallel and at intervals or converged.

23. The atomizer core according to claim 22, characterized in that A communication hole is provided on a side of the base away from the supporting layer, and the communication hole connects the multiple liquid-conducting grooves, so that the matrix to be atomized is transferred to the multiple liquid-conducting grooves through the communication hole.

24. The atomizer core according to claim 1, characterized in that The thickness of the substrate is 0.2 mm to 1 mm.

25. The atomizer core according to claim 1, characterized in that The material of the substrate is at least one of dense ceramics, glass, single crystal silicon and amorphous silicon.

26. The atomizer core according to claim 1, characterized in that The material of the substrate is porous material.

27. The atomizer core according to claim 26, characterized in that The porous material is at least one of porous ceramics, sponge, foam and fiber layer.

28. An atomizer, characterized in that: The atomizer comprises: a housing having a liquid storage chamber; and An atomizer core is provided at the liquid outlet of the liquid storage chamber, wherein the atomizer core is the atomizer core as described in any one of claims 1 to 27.

29. The atomizer according to claim 28, characterized in that The liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the direction of the liquid outlet of the liquid storage cavity is the same as the downward liquid direction of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

30. The atomizer according to claim 28, wherein The liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the liquid outlet of the liquid storage cavity is opposite to the downward liquid direction of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

31. The atomizer according to claim 28, wherein The liquid outlet of the liquid storage cavity is located at the bottom of the liquid storage cavity, and the liquid outlet of the liquid storage cavity is perpendicular to the downward liquid direction of the liquid storage cavity; the base is arranged at the liquid outlet of the liquid storage cavity, and the heating element is located on the side of the support layer away from the liquid outlet.

32. The atomizer according to claim 31, characterized in that The liquid outlet is located on the side wall of the liquid storage cavity.

33. An electronic atomization device, characterized in that: The electronic atomization device comprises a battery assembly and the atomizer as described in claim 28 above, wherein the battery assembly supplies power to the atomizer.

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