Heating components, atomizers and electronic atomization devices

Abstract

The present application discloses a heating component, an atomizer and an electronic atomization device, wherein the heating component comprises a first substrate and a second substrate; the first substrate has a first surface and a second surface arranged opposite to each other, and the second substrate has a third surface and a fourth surface arranged opposite to each other; the second surface and the third surface are arranged opposite to each other; the second substrate has a plurality of second micropores; wherein the edge of the first substrate has a liquid inlet or cooperates with other components to form a liquid inlet, and the second surface and the third surface are arranged opposite to each other to form a gap with capillary action, and the gap connects the plurality of second micropores and the liquid inlet; the plurality of second micropores are used to guide the aerosol generating matrix from the gap to the fourth surface; the height of the gap varies in a gradient, so that the capillary force formed by the gap varies in a gradient, so as to drive the fluid flow in the gap, facilitate the discharge of bubbles, and avoid dry burning.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to a heating component, an atomizer and an electronic atomization device. Background Art

[0002] The electronic atomization device is composed of a heating element, a battery, a control circuit and other parts. The heating element is the core component of the electronic atomization device, and its characteristics determine the atomization effect and user experience of the electronic atomization device.

[0003] One of the existing heating elements is the cotton core heating element. Most cotton core heating elements are spring-shaped metal heating wires wrapped around cotton ropes or fiber ropes. The liquid aerosol generating matrix to be atomized is absorbed by both ends of the cotton rope or fiber rope, and then transmitted to the central metal heating wire for heating and atomization. Due to the limited end area of ​​the cotton rope or fiber rope, the adsorption and transmission efficiency of the aerosol generating matrix is ​​low. In addition, the cotton rope or fiber rope has poor structural stability, and is prone to dry burning, carbon deposition, and burnt smell after multiple thermal cycles.

[0004] Another type of existing heating element is the ceramic heating element. Most ceramic heating elements form a metal heating film on the surface of a porous ceramic body; the porous ceramic body plays the role of conducting and storing liquid, and the metal heating film realizes the heating and atomization of the liquid aerosol generating matrix. However, it is difficult to accurately control the position distribution and dimensional accuracy of the micropores in porous ceramics prepared by high-temperature sintering. In order to reduce the risk of leakage, the pore size and porosity need to be reduced, but in order to achieve sufficient liquid supply, the pore size and porosity need to be increased, and the two are contradictory. At present, under the conditions of pore size and porosity that meet the low risk of leakage, the liquid conducting capacity of the porous ceramic matrix is ​​limited, and a burnt smell will appear under high power conditions.

[0005] With the advancement of technology, users have higher and higher requirements for the atomization effect of electronic atomization devices. In order to meet the needs of users, a thin heating element is provided to improve the liquid supply capacity. However, this thin heating element is prone to form bubbles on the liquid absorption surface, blocking the liquid inlet and causing the heating element to dry burn. Summary of the invention

[0006] The heating component, atomizer and electronic atomization device provided in the present application solve the problem in the prior art that thin heating elements are prone to form bubbles on the liquid absorption surface, causing dry burning.

[0007] In order to solve the above technical problems, the first technical solution provided in the present application is: to provide a heating component, including a first substrate and a second substrate; the first substrate has a first surface and a second surface arranged opposite to each other; the second substrate has a third surface and a fourth surface arranged opposite to each other; the second surface is arranged opposite to the third surface; the second substrate has a plurality of second micropores; wherein the edge of the first substrate has a liquid inlet or cooperates with other components to form a liquid inlet; the second surface and the third surface are arranged opposite to each other to form a gap with capillary action, and the gap connects the plurality of second micropores and the liquid inlet; the plurality of second micropores are used to guide the aerosol generating matrix from the gap to the fourth surface; the height of the gap varies in a gradient.

[0008] In one embodiment, the first substrate has a plurality of first micropores, and the first micropores are used to guide the aerosol generating substrate from the first surface to the second surface; the gaps connect the first micropores and the second micropores.

[0009] In one embodiment, the second substrate includes an atomized region and a non-atomized region;

[0010] The heating component further comprises a heating element, the heating element is arranged on the fourth surface, and the heating element is located in the atomization area;

[0011] Alternatively, at least a portion of the atomization region of the second substrate has a conductive function for heating and atomizing the aerosol generating substrate.

[0012] In one embodiment, the height of the gap corresponding to the atomization zone is less than 30 μm.

[0013] In one embodiment, the height of the gap is less than 5 μm.

[0014] In one embodiment, the third surface is provided with a groove structure, corresponding to the atomization area, and the height of the gap is less than 30 μm;

[0015] Alternatively, the third surface is a plane, and the height of the gap is less than 20 μm.

[0016] In one embodiment, the second surface and the third surface are both planes;

[0017] Or, one of the second surface and the third surface is a plane, and the other is a curved surface;

[0018] Alternatively, one of the second surface and the third surface is a plane, and the other is a step surface.

[0019] In one embodiment, the edge of the first substrate has two liquid inlets; the direction parallel to the first substrate includes a first direction and a second direction perpendicular to each other, and along the first direction, the height of the gap gradually increases; wherein the two liquid inlets are respectively arranged on opposite sides of the first substrate along the first direction, or the two liquid inlets are respectively arranged on opposite sides of the first substrate along the second direction.

[0020] In one embodiment, the heat generating component further includes a spacer; the spacer is disposed between the second surface and the third surface and is located at the edge of the first substrate and / or the second substrate, so that the first substrate and the second substrate are disposed opposite to each other to form the gap.

[0021] In one embodiment, the spacer is an independently provided gasket;

[0022] Or, the spacer is a support column or a support frame or a coating fixed on the second surface and / or the third surface;

[0023] Alternatively, the spacer is a protrusion integrally formed with the first substrate and / or the second substrate.

[0024] In one embodiment, the edges of one end of the first substrate and the second substrate are in contact with each other, and the spacer is disposed on the edges of the other end of the first substrate and the second substrate; or

[0025] The spacers located at edges of both ends of the first substrate and the second substrate have different heights.

[0026] In one embodiment, the spacer includes a plurality of first sub-spacers and a plurality of second sub-spacers, the first sub-spacers and the second sub-spacers have different heights; the plurality of first sub-spacers are spaced apart and are disposed at the edge of one end of the first substrate and / or the second substrate; the plurality of second sub-spacers are spaced apart and are disposed at the edge of the other end of the first substrate and / or the second substrate.

[0027] In one embodiment, the heating component also includes a fixing member, which has a lower liquid hole; a fixing structure is arranged on the hole wall of the lower liquid hole to fix the first substrate and / or the second substrate so that the first substrate and the second substrate form the gap; at least part of the edge of the first substrate is spaced apart from the hole wall of the lower liquid hole to form the liquid inlet, and the second substrate spans the entire lower liquid hole.

[0028] In one embodiment, the capillary force of the second micropores is greater than the capillary force of the first micropores.

[0029] In one embodiment, the second matrix is ​​a dense matrix, and the second micropores are through holes that penetrate the third surface and the fourth surface.

[0030] In one embodiment, the first matrix is ​​a dense matrix, and the first micropores are through holes that penetrate the first surface and the second surface.

[0031] In one embodiment, the pore size of the first micropores is 10 μm-150 μm.

[0032] In one embodiment, a through hole is provided at the edge of the first substrate; the through hole serves as the liquid inlet.

[0033] In one embodiment, both the first substrate and the second substrate are flat plate structures, and the thickness of the first substrate is in the range of 0.1-1 mm; the thickness of the second substrate is in the range of 0.1-1 mm.

[0034] In order to solve the above technical problems, the second technical solution provided in the present application is: to provide a nebulizer, comprising a liquid storage chamber and a heating component; the liquid storage chamber is used to store an aerosol generating matrix; the heating component is a heating component described in any one of the above; the liquid inlet of the heating component is connected to the fluid of the liquid storage chamber, and the heating component is used to atomize the aerosol generating matrix.

[0035] In order to solve the above technical problems, the third technical solution provided in this application is: to provide an electronic atomization device, including an atomizer and a host; the atomizer is the atomizer described above; the host is used to provide electrical energy for the atomizer and control the heating component to atomize the aerosol generating matrix.

[0036] The heating component, atomizer and electronic atomization device provided in the present application, the heating component includes a first substrate and a second substrate; the first substrate has a first surface and a second surface arranged opposite to each other, and the second substrate has a third surface and a fourth surface arranged opposite to each other; the second surface and the third surface are arranged opposite to each other; the second substrate has a plurality of second micropores; wherein the edge of the first substrate has a liquid inlet or cooperates with other components to form a liquid inlet, the second surface and the third surface are arranged opposite to each other to form a gap with capillary action, and the gap connects the plurality of second micropores and the liquid inlet; the plurality of second micropores are used to guide the aerosol generating matrix from the gap to the fourth surface; the height of the gap changes in a gradient, so that the capillary force formed by the gap changes in a gradient, so as to drive the flow of the fluid in the gap, facilitate the discharge of bubbles, and avoid dry burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 It is a structural schematic diagram of an embodiment of the electronic atomization device provided by the present application;

[0039] Figure 2 is a schematic structural diagram of an atomizer provided in one embodiment of the present application;

[0040] Figure 3a is a schematic diagram of a top view of the structure of the first embodiment of the heating component provided by the present application;

[0041] Figure 3b yes Figure 3a A schematic cross-sectional view of the heating component along the BB direction is provided;

[0042] Figure 3c yes Figure 3a A schematic structural diagram of a second substrate in a heat generating assembly provided as viewed from the atomizing surface side;

[0043] Figure 3d yes Figure 3a A schematic structural diagram of a first substrate in a heat generating assembly provided as viewed from a liquid absorbing surface;

[0044] Figure 4 yes Figure 3a A schematic structural diagram of another embodiment of the liquid inlet of the heating component provided;

[0045] Figure 5 yes Figure 3a A structural schematic diagram of another embodiment of the liquid inlet of the heating component provided;

[0046] Figure 6 is a schematic diagram of a top view of the structure of a second embodiment of a heating component provided by the present application;

[0047] Figure 7 is a cross-sectional schematic diagram of a third embodiment of a heat generating assembly provided by the present application;

[0048] Figure 8 yes Figure 7 A schematic structural diagram of another embodiment of a spacer of a heat generating assembly provided;

[0049] Figure 9a is a schematic diagram of a top view of the structure of a fourth embodiment of a heating component provided by the present application;

[0050] Figure 9b yes Figure 9a A schematic cross-sectional view of a heat generating component along the CC direction is provided;

[0051] Fig.10 is a cross-sectional schematic diagram of a fifth embodiment of a heat generating assembly provided by the present application;

[0052] Fig.11 yes Fig.10 A schematic diagram of a partial enlarged structure of a third surface of a second substrate of a heat generating component is provided;

[0053] Fig.12 is a structural schematic diagram of a sixth embodiment of a heating component provided by the present application;

[0054] Fig.13 It is a structural schematic diagram of another implementation manner of the first substrate and the second substrate in the sixth embodiment of the heat generating assembly provided by the present application;

[0055] Fig.14 It is a structural schematic diagram of another implementation manner of the first substrate and the second substrate in the sixth embodiment of the heat generating assembly provided by the present application;

[0056] Fig.15 It is a structural schematic diagram of the seventh embodiment of the heating component provided in this application. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0058] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0059] The terms "first", "second", and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications in the embodiments of this application (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 indication also changes accordingly. The terms "including" and "having" in the embodiments of this application and any of their variations 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.

[0060] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0061] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0062] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of the electronic atomization device provided in the present application.

[0063] In this embodiment, an electronic atomization device 100 is provided. The electronic atomization device 100 can be used for atomization of an aerosol-generating substrate. The electronic atomization device 100 includes an atomizer 1 and a host 2 that are electrically connected to each other.

[0064] The atomizer 1 is used to store the aerosol-generating matrix and atomize the aerosol-generating matrix to form an aerosol for users to inhale. The atomizer 1 can be used in different fields, such as medical treatment, beauty, leisure smoking, etc. In a specific embodiment, the atomizer 1 can be used in an electronic aerosolization device to atomize the aerosol-generating matrix and generate an aerosol for the smoker to inhale. The following embodiments all take this leisure smoking as an example.

[0065] The specific structure and function of the atomizer 1 may refer to the specific structure and function of the atomizer 1 involved in any of the following embodiments, and the same or similar technical effects can be achieved, which will not be repeated here.

[0066] The host 2 includes a battery (not shown) and a controller (not shown). The battery is used to provide electrical energy for the operation of the atomizer 1, so that the atomizer 1 can atomize the aerosol-generating matrix to form an aerosol; the controller is used to control the operation of the atomizer 1. The host 2 also includes other components such as a battery holder and an airflow sensor.

[0067] The atomizer 1 and the host 2 can be integrally arranged or detachably connected, and can be designed according to specific needs.

[0068] See also Figure 2 , Figure 2 It is a schematic diagram of the structure of an atomizer provided in one embodiment of the present application.

[0069] The atomizer 1 includes a shell 10, an atomizer seat 11 and a heating component 12. The shell 10 has a liquid storage chamber 13 and an air outlet channel 14. The liquid storage chamber 13 is used to store a liquid aerosol-generating matrix, and the liquid storage chamber 13 is arranged around the air outlet channel 14. The end of the shell 10 also has a suction port 15, and the suction port 15 is connected to the air outlet channel 14; specifically, the suction port 15 can be formed by a port of the air outlet channel 14. The shell 10 has a receiving chamber 16 on the side of the liquid storage chamber 13 away from the suction port 15, and the atomizer seat 11 is arranged in the receiving chamber 16. The atomizer seat 11 includes an atomizer top seat 111 and an atomizer base 112. The atomizer top seat 111 and the atomizer base 112 cooperate to form a receiving chamber 113; that is, the atomizer seat 11 has a receiving chamber 113. The heating component 12 is arranged in the receiving chamber 113, and is arranged in the receiving chamber 16 together with the atomizer seat 11.

[0070] Two fluid channels 114 are provided on the atomizing top seat 111, and the two fluid channels 114 are provided on both sides of the air outlet channel 14. One end of the fluid channel 114 is in communication with the liquid storage chamber 13, and the other end is in communication with the receiving chamber 113, that is, the fluid channel 114 enables the liquid storage chamber 13 to communicate with the receiving chamber 113, so that the aerosol generating matrix channel fluid channel 114 in the liquid storage chamber 13 enters the heating component 12. In other words, the heating component 12 is in fluid communication with the liquid storage chamber 13, and the heating component 12 is used to absorb and heat the atomized aerosol generating matrix. The controller of the host 2 controls the heating component 12 to atomize the aerosol generating matrix.

[0071] In this embodiment, the surface of the heating component 12 away from the liquid storage chamber 13 is an atomizing surface, and an atomizing chamber 115 is formed between the atomizing surface of the heating component 12 and the inner wall surface of the receiving chamber 113, and the atomizing chamber 115 is connected to the air outlet channel 14. An air inlet 116 is provided on the atomizing base 112 to connect the outside with the atomizing chamber 115. External gas enters the atomizing chamber 115 through the air inlet 116, carries the aerosol atomized by the heating component 12 into the air outlet channel 14, and finally reaches the suction port 15 to be inhaled by the user.

[0072] The atomizer 1 further comprises a conducting member 17, which is fixed to the atomizing base 112. One end of the conducting member 17 is electrically connected to the heating component 12, and the other end is used to be electrically connected to the host 2, so that the heating component 12 can work.

[0073] The atomizer 1 further includes a sealing top cover 18. The sealing top cover 18 is disposed on the surface of the atomizing top seat 111 close to the liquid storage chamber 13, and is used to seal the liquid storage chamber 13, the atomizing top seat 111, and the air outlet channel 14 to prevent leakage. Optionally, the sealing top cover 18 is made of silicone or fluororubber.

[0074] See also Figure 3a , 3b , 3c, 3d, Figure 3a is a schematic diagram of a top view of the structure of the first embodiment of the heating component provided by the present application, Figure 3b yes Figure 3a The cross-sectional schematic diagram of the heating component along the BB direction is provided. Figure 3c yes Figure 3a A schematic diagram of the structure of the second substrate in the heat generating assembly provided as viewed from the atomizing surface side, Figure 3d yes Figure 3a A schematic structural diagram of the first substrate in the heat generating component provided is viewed from the liquid absorption surface side.

[0075] The heat generating component 12 includes a first base 121 and a second base 122 .

[0076] The first substrate 121 has a first surface 1211 and a second surface 1212 that are arranged opposite to each other, and the first surface 1211 is a liquid absorption surface; the first substrate 121 has a plurality of first micropores 1213, and the first micropores 1213 are used to guide the aerosol generating matrix from the first surface 1211 to the second surface 1212, that is, the first micropores 1213 are used to guide the aerosol generating matrix from the liquid absorption surface to the second surface 1212. The edge of the first substrate 121 has a liquid inlet 1217 or cooperates with other components to form the liquid inlet 1217, and the heating component 12 is in fluid communication with the liquid storage chamber 13 through the liquid inlet 1217. The first surface 1211 and the second surface 1212 are both planes, and the first surface 1211 and the second surface 1212 are arranged in parallel.

[0077] The second substrate 122 has a third surface 1221 and a fourth surface 1222 that are arranged opposite to each other, and the fourth surface 1222 is an atomization surface; the second substrate 122 has a plurality of second micropores 1223, and the second micropores 1223 are used to guide the aerosol-generating substrate from the third surface 1221 to the fourth surface 1222, that is, the second micropores 1223 are used to guide the aerosol-generating substrate from the third surface 1221 to the atomization surface. The third surface 1221 and the fourth surface 1222 are both planes, and the third surface 1221 is arranged parallel to the fourth surface 1222.

[0078] The second surface 1212 and the third surface 1221 are arranged opposite to each other, and a gap 123 with a capillary effect is formed between the second surface 1212 and the third surface 1221. The gap 123 connects the plurality of first micropores 1213 with the plurality of second micropores 1223, and connects the liquid inlet 1217 with the plurality of second micropores 1223. The height of the gap 123 changes in a gradient, and the capillary force also changes in a gradient; specifically, the height of the gap 123 gradually increases, or the height of the gap 123 gradually decreases and then gradually increases.

[0079] In this embodiment, the second surface 1212 is inclined relative to the third surface 1221, and an angle β is formed between the second surface 1212 and the third surface 1221, and the height of the gap 123 gradually increases. Optionally, the first substrate 121 is in contact with one end of the second substrate 122, and the other end is spaced apart (such as Figure 3b Optionally, both ends of the first substrate 121 and the second substrate 122 are spaced apart, and the distances between the two ends are different.

[0080] Part of the aerosol-generating substrate enters the gap 123 from the liquid inlet 1217, and part of the aerosol-generating substrate enters the gap 123 through the capillary force of the first micropores 1213 of the first substrate 121. The aerosol-generating substrate in the gap 123 passes through the capillary force of the second micropores 1223 of the second substrate 122 and reaches the fourth surface 1222 of the second substrate 122 to be atomized and generate aerosol. In other words, the aerosol-generating substrate flows from the liquid absorption surface (first surface 1211) to the atomization surface (second surface 1222) under the action of gravity and / or capillary force.

[0081] When the heating component 12 is atomized, the aerosol generating matrix in the second micropore 1223 is consumed and needs to be replenished, and gas will enter the gap 123 through the second micropore 1223 to form bubbles. If the bubbles grow and block the port of the second micropore 1223 close to the first substrate 121, there will be a problem of insufficient liquid supply, thereby causing dry burning. In the embodiment of the present application, by setting the height of the gap 123 to change in a gradient, the capillary force formed by the gap 123 also changes in a gradient, so as to drive the flow of the fluid in the gap 123, that is, to make the bubbles in the gap 123 flow, so that the bubbles in the gap 123 cannot be in a stable state and are stuck, thereby promoting the discharge of bubbles from the first micropore 1213 and / or the liquid inlet 1217, avoiding bubbles from being retained in the gap 123 and blocking the port of the second micropore 1223 close to the first substrate 121, ensuring sufficient liquid supply, and thus avoiding dry burning.

[0082] When the liquid storage chamber 13 of the atomizer 1 completes the initial liquid injection or draws back to consume the aerosol generating matrix in the gap 123 and then refills it, when the aerosol generating matrix in the liquid storage chamber 13 fills the gap 123 from the liquid inlet 1217 and / or the first micropore 1213, the bubbles in the gap 123 need to be discharged; the applicant has found that due to the relatively large viscosity of the aerosol generating matrix in the non-heated state and the large resistance formed, the large bubbles in the gap 123 are not easy to be discharged from the liquid inlet 1217 and are stuck in the middle position inside the gap 123, and the bubbles in the gap 123 are also not easy to be discharged from the first micropore 1213, resulting in the second micropore 1223 being blocked. In the embodiment of the present application, the height of the gap 123 is set to change in a gradient so that the capillary force formed by the gap 123 also changes in a gradient, thereby driving the flow of the fluid in the gap 123, that is, making the bubbles in the gap 123 flow, promoting the discharge of the bubbles from the liquid inlet 1217, and preventing the bubbles from being retained in the gap 123 and clogging the port of the second micropore 1223 close to the first substrate 121, thereby ensuring sufficient liquid supply and avoiding dry burning.

[0083] In addition, relative to the fitting arrangement of the first substrate 121 and the second substrate 122, a gap 123 is formed between the first substrate 121 and the second substrate 122, so that lateral liquid replenishment can be achieved. Even if bubbles adhere to the first surface 1211 (liquid absorption surface) of the first substrate 121 and cover part of the first micropores 1213, it does not affect the liquid supply of the second substrate 122, thereby ensuring sufficient liquid supply and avoiding dry burning.

[0084] By setting the first substrate 121 on the side of the second substrate 122 close to the liquid storage cavity 13, bubbles can be prevented from growing in the vertical direction, which is beneficial to the discharge of bubbles and ensures sufficient liquid supply; and the first substrate 121 can insulate to a certain extent, preventing the heat on the second substrate 122 from being transferred to the liquid storage cavity 13, which is beneficial to ensure the consistency of taste.

[0085] On the basis that the edge of the first substrate 121 has a liquid inlet 1217 or cooperates with other components to form the liquid inlet 1217, a plurality of first micropores 1213 are further provided on the first substrate 121, which not only increases the amount of liquid inlet, but also prevents the aerosol-generating matrix from only inletting liquid from the edge of the first substrate 121, thus preventing uneven liquid inlet from various regions of the first substrate 121. In addition, during the atomization process, smaller bubbles entering from the second micropores 1223 can be discharged from the first micropores 1213, preventing the second micropores 1223 from being blocked.

[0086] In this embodiment, the capillary force of the second micropores 1223 is greater than the capillary force of the first micropores 1213, so that the aerosol generating substrate can flow from the gap 123 to the fourth surface 1222 of the second substrate 122. Since the first micropores 1213 also have capillary force, when the suction port 15 is used downward, liquid backflow can be prevented and insufficient liquid supply can be prevented. In other words, the gap 123 has a certain liquid storage function, and experiments have proved that at least two puffs will not burn out.

[0087] See also Figure 3c The second substrate 122 includes an atomization area M and a non-atomization area N. The atomization area M is an area on the second substrate 122 where aerosol can be generated. The atomization area M is located in the area covered by the heating element 124 and the area near it. The shape of the atomization area M is related to the shape of the heating element 124. The area on the second substrate 122 except the atomization area M is the non-atomization area N. The heating component 12 also includes a heating element 124, a positive electrode 128 and a negative electrode 129. The two ends of the heating element 124 are electrically connected to the positive electrode 128 and the negative electrode 129 respectively. The positive electrode 128 and the negative electrode 129 are both arranged on the fourth surface 1222 (atomization surface) of the second substrate 122 to facilitate electrical connection with the host 2. The heating element 124 is located in the atomization area M of the second substrate 122. The heating element 124 can be arranged on the fourth surface 1222 (atomization surface) of the second substrate 122, or can be buried in the interior of the second substrate 122. The specific design is carried out according to needs. The heating element 124 can be a heating sheet, a heating film, a heating net, etc., as long as it can heat the atomized aerosol generating substrate. In another embodiment, at least part of the atomization area M of the second substrate 122 has a conductive function, which can generate heat itself to heat the atomized aerosol generating substrate; for example, a self-heating conductive ceramic or glass with a conductive function, in which case there is no need to separately provide a heating element 124. In other words, the heating element 124 is an optional structure.

[0088] When the second substrate 122 has no conductive function and the heating element 124 is a separate element, the projection of the first substrate 121 on the second substrate 122 completely covers the heating element 124 to ensure that the liquid supply speed can meet the atomization speed of the heating element 124 and achieve a better atomization effect.

[0089] In this embodiment, corresponding to the atomization area M, the height of the gap 123 is less than 20 μm. During the atomization process, bubbles will enter only when the aerosol-generating matrix in the second micropore 1223 is consumed. The atomization area M refers to the area that can be atomized to generate aerosols. This area has the highest gasification efficiency and is the main air intake area, that is, the bubbles mainly exist in the area corresponding to the atomization area M. When the height of the gap 123 is greater than 20 μm, it cannot prevent the bubbles from growing in the vertical direction, which is not conducive to the discharge of bubbles and hinders the liquid from flowing down; that is, the gap 123 can prevent large bubbles from reaching the liquid absorption surface. Optionally, corresponding to the atomization area M, the height of the gap 123 is less than 5 μm.

[0090] The first substrate 121 may be a porous substrate, such as porous ceramics, cotton, quartz sand core, and foam structure materials; the first substrate 121 may also be a dense substrate, such as quartz, glass, and dense ceramics. When the material of the first substrate 121 is glass, it may be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

[0091] The second substrate 122 may be a porous substrate, such as porous ceramics, cotton, quartz sand core, or a foam structure material; the second substrate 122 may also be a dense substrate, such as quartz, glass, or dense ceramics. When the second substrate 122 is made of glass, it may be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

[0092] The materials of the first substrate 121 and the second substrate 122 may be the same or different. The first substrate 121 and the second substrate 122 may be arbitrarily combined, for example, the first substrate 121 is a porous substrate and the second substrate 122 is a dense substrate; for another example, the first substrate 121 is a porous substrate and the second substrate 122 is a porous substrate; for another example, the first substrate 121 is a dense substrate and the second substrate 122 is a porous substrate; for another example, the first substrate 121 is a dense substrate and the second substrate 122 is a dense substrate.

[0093] It can be understood that when the first substrate 121 is a porous substrate, the plurality of first micropores 1213 are disordered through-holes. When the second substrate 122 is a porous substrate, the plurality of second micropores 1223 are disordered through-holes.

[0094] The heating component 12 is described in detail below by taking the first substrate 121 as a dense substrate and the second substrate 122 as a dense substrate as an example.

[0095] The first matrix 121 is a dense matrix, and the first micropores 1213 are straight through holes that penetrate the first surface 1211 and the second surface 1212; that is, the plurality of first micropores 1213 are orderly through holes. The second matrix 122 is a dense matrix, and the second micropores 1223 are straight through holes that penetrate the third surface 1221 and the fourth surface 1222; that is, the plurality of second micropores 1223 are orderly through holes.

[0096] The extension direction of the first micropore 1213 can be parallel to the thickness direction of the first substrate 121, or it can form an angle with the thickness direction of the first substrate 121, and the angle range is 80 degrees to 90 degrees. The cross section of the first micropore 1213 can be circular, and the longitudinal section can be rectangular. The extension direction of the second micropore 1223 can be parallel to the thickness direction of the second substrate 122, or it can form an angle with the thickness direction of the second substrate 122, and the angle range is 80 degrees to 90 degrees. The cross section of the second micropore 1223 can be circular, and the longitudinal section can be rectangular, etc. The longitudinal section shape of the first micropore 1213 and the second micropore 1223 and their extension direction can be designed as needed. In this embodiment, the first micropore 1213 and the second micropore 1223 are straight through holes parallel to the thickness direction of the first substrate 121 or the second substrate 122; that is, the central axis of the first micropore 1213 is perpendicular to the first surface 1211, and the central axis of the second micropore 1223 is perpendicular to the third surface 1221.

[0097] The projection of the area where the first micropores 1213 are arranged on the first substrate 121 on the second substrate 122 completely covers the area where the second micropores 1223 are arranged on the second substrate 122, so as to ensure that the liquid supply speed can meet the atomization speed of the heating element 124 arranged on the fourth surface 1222 of the second substrate 122, thereby achieving a better atomization effect.

[0098] The aperture of the first micropore 1213 on the first substrate 121 is 10μm-150μm, which can provide sufficient liquid flow, can also be used to discharge small bubbles, and can also prevent the growth of bubbles. When the aperture of the first micropore 1213 is less than 10μm, the liquid resistance is large, and it is difficult to meet the liquid supply demand, resulting in a decrease in aerosol generation or the risk of dry burning; when the aperture of the first micropore 1213 is greater than 150μm, it will not play a role in preventing the growth of bubbles; at the same time, if the aperture of the first micropore 1213 is too large, it will weaken or even lose the ability to lock liquid, and the aerosol generation matrix is ​​easy to flow out of the first micropore 1213 to cause leakage, resulting in a decrease in atomization efficiency. Optionally, the aperture of the first micropore 1213 is 30μm-100μm. It can be understood that the aperture of the first substrate 121 is selected according to actual needs; specifically, the aperture is selected according to the viscosity of the aerosol generation matrix, and the higher the viscosity of the aerosol generation matrix, the larger the aperture is selected in the above range.

[0099] The aperture of the second micropore 1223 on the second substrate 122 is 1 μm-100 μm. When the aperture of the second micropore 1223 is less than 1 μm, the liquid resistance is large, and it is difficult to meet the liquid supply demand, resulting in a decrease in aerosol generation or a risk of dry burning; when the aperture of the second micropore 1223 is greater than 100 μm, the aerosol generation matrix is ​​easy to flow out of the second micropore 1223 to cause leakage, resulting in a decrease in atomization efficiency. Optionally, the aperture of the second micropore 1223 is 20 μm-50 μm. It is understandable that the aperture of the second substrate 122 is selected according to actual needs.

[0100] Optionally, the aperture of the first micropore 1213 is larger than the aperture of the second micropore 1223 (eg Figure 3b As shown), so that the capillary force of the second micropore 1223 is greater than the capillary force of the first micropore 1213.

[0101] The thickness of the second substrate 122 is 0.1mm-1mm. When the thickness of the second substrate 122 is greater than 1mm, the liquid supply demand cannot be met, resulting in a decrease in the amount of aerosol, and a large amount of heat loss is caused, and the cost of setting the second micropore 1223 is high; when the thickness of the second substrate 122 is less than 0.1mm, the strength of the second substrate 122 cannot be guaranteed, which is not conducive to improving the performance of the electronic atomization device. Optionally, the thickness of the second substrate 122 is 0.2mm-0.5mm. It is understandable that the thickness of the second substrate 122 is selected according to actual needs. Since the thickness of the second substrate 122 is within the above range, that is, the thickness is relatively thin, bubbles can easily enter the gap 123 from the second micropores 1223 during the atomization process. By making the height of the gap 123 change in a gradient, the capillary force formed by the gap 123 also changes in a gradient, so as to drive the flow of the fluid in the gap 123 and promote the discharge of bubbles from the liquid inlet 1217, so as to avoid bubbles being retained in the gap 123 and blocking the port of the second micropores 1223 close to the first substrate 121, thereby ensuring sufficient liquid supply.

[0102] The thickness of the first substrate 121 is 0.1 mm-1 mm. Optionally, the thickness of the first substrate 121 is less than the thickness of the second substrate 122, wherein the thickness of the first substrate 121 is the distance between the first surface 1211 and the second surface 1212, and the thickness of the second substrate 122 is the distance between the third surface 1221 and the fourth surface 1222. It can be understood that the bubbles in the gap 123 are discharged from the liquid inlet 1217 and / or the first micropores 1213, wherein large bubbles are discharged from the liquid inlet 1217 and small bubbles are discharged from the first micropores 1213. By setting the thickness of the first substrate 121 to the above range, the discharge path of the small bubbles is shortened, which is conducive to the discharge of small bubbles, thereby ensuring sufficient liquid supply.

[0103] The ratio of the thickness of the second substrate 122 to the aperture of the second micropore 1223 is 20:1-3:1 to improve the liquid supply capacity. When the ratio of the thickness of the second substrate 122 to the aperture of the second micropore 1223 is greater than 20:1, the aerosol-generating matrix supplied by the capillary force of the second micropore 1223 is difficult to meet the atomization demand of the heating element 124, which is not only easy to cause dry burning, but also the amount of aerosol generated by a single atomization decreases; when the ratio of the thickness of the second substrate 122 to the aperture of the second micropore 1223 is less than 3:1, the aerosol-generating matrix is ​​easy to flow out of the second micropore 1223 to cause waste, resulting in a decrease in atomization efficiency, and then a decrease in the total aerosol amount. Optionally, the ratio of the thickness of the second substrate 122 to the aperture of the second micropore 1223 is 15:1-5:1.

[0104] The ratio of the center distance between two adjacent second micropores 1223 to the aperture of the second micropores 1223 is 3:1-1.5:1, so that the second micropores 1223 on the second substrate 122 can improve the strength of the second substrate 122 as much as possible while meeting the liquid supply capacity; optionally, the ratio of the center distance between two adjacent second micropores 1223 to the aperture of the second micropores 1223 is 3:1-2:1; further optionally, the ratio of the center distance between two adjacent second micropores 1223 to the aperture of the second micropores 1223 is 3:1-2.5:1.

[0105] Continue to see Figure 3c In this embodiment, a plurality of second micropores 1223 are arranged in an array only on a part of the surface of the second substrate 122. Specifically, the second substrate 122 is provided with a micropore array area 1224 and a blank area 1225 arranged around the micropore array area 1224, and the micropore array area 1224 has a plurality of second micropores 1223; the heating element 124 is arranged in the micropore array area 1224 to heat the atomized aerosol to generate the matrix; the positive electrode 128 and the negative electrode 129 are arranged in the blank area 1225 of the fourth surface 1222 (atomization surface) to ensure the stability of the electrical connection between the positive electrode 128 and the negative electrode 129. It should be noted that the micropore array area 1224 is provided with the heating element 124 and its surrounding area is the atomization area M, that is, the area of ​​the atomization area M is smaller than the micropore array area 1224.

[0106] By providing the micropore array area 1224 and the blank area 1225 around the micropore array area 1224 on the second substrate 122, it can be understood that the second micropores 1223 are not provided on the blank area 1225, and the number of the second micropores 1223 on the second substrate 122 is reduced, thereby improving the strength of the second substrate 122 and reducing the production cost of providing the second micropores 1223 on the second substrate 122. The micropore array area 1224 in the second substrate 122 serves as the atomization area M, covering the heating element 124 and the surrounding area of ​​the heating element 124, that is, basically covering the area reaching the temperature of the atomized aerosol generation substrate, and making full use of the thermal efficiency.

[0107] It can be understood that the size of the area around the micropore array area 1224 of the second substrate 122 in the present application is larger than the aperture of the second micropore 1223, and can be called the blank area 1225; that is, the blank area 1225 in the present application is the area where the second micropore 1223 can be formed but is not formed, rather than the area around the micropore array area 1224 where the second micropore 1223 cannot be formed. In one embodiment, the spacing between the second micropore 1223 closest to the edge of the second substrate 122 and the edge of the second substrate 122 is larger than the aperture of the second micropore 1223, and it is considered that the blank area 1225 is provided in the circumferential direction of the micropore array area 1224.

[0108] Whether the first micropores 1213 are disposed on the entire surface of the first substrate 121 or only on a portion of the surface can be designed as required. Figure 3d The first substrate 121 is provided with a micropore array area 1214 and a blank area 1215 arranged around the micropore array area 1214 , and the micropore array area 1214 has a plurality of first micropores 1213 .

[0109] The shapes of the first substrate 121 and the second substrate 122 can be flat, cylindrical, arc-shaped, etc., and can be designed according to specific needs; the shapes of the first substrate 121 and the second substrate 122 are matched to form a gap 123 between the first substrate 121 and the second substrate 122. For example, Figure 3b The first substrate 121 and the second substrate 122 of the heating component 12 are both in the shape of flat plates.

[0110] The first substrate 121 and the second substrate 122 can be set to regular shapes, such as rectangular plates, circular plates, etc. The multiple first micropores 1213 arranged on the first substrate 121 are arranged in an array; that is, the multiple first micropores 1213 arranged on the first substrate 121 are arranged regularly, and the hole center distances between adjacent first micropores 1213 in the multiple first micropores 1213 are the same. The multiple second micropores 1223 arranged on the second substrate 122 are arranged in an array; that is, the multiple second micropores 1223 arranged on the second substrate 122 are arranged regularly, and the hole center distances between adjacent second micropores 1223 in the multiple second micropores 1223 are the same.

[0111] Continue to see Figure 3a and Figure 3b The heating component 12 also includes a fixing member 126, and the fixing member 126 has a lower liquid hole 1261. The lower liquid hole 1261 is in fluid communication with the liquid storage chamber 13 through the fluid channel 114. A fixing structure (not shown) is provided on the hole wall of the lower liquid hole 1261 to fix the first substrate 121 and / or the second substrate 122, so that the first substrate 121 and the second substrate 122 are arranged relative to each other to form a gap 123. When the fixing member 126 covers the periphery of the second substrate 122, the fixing member 126 does not block the heating element 124, and the lower liquid hole 1261 can completely expose the heating element 124. Among them, the specific setting method of the fixing structure is designed according to needs, and it can fix the first substrate 121 and the second substrate 122, and form a gap 123 between the first substrate 121 and the second substrate 122.

[0112] Optionally, the first substrate 121 and the second substrate 122 are both disposed in the lower liquid hole 1261 (eg Figure 3b shown).

[0113] Optionally, the fixing member 126 is made of silicone or fluororubber, which can achieve sealing while fixing the first substrate 121 and / or the second substrate 122 .

[0114] In this embodiment, at least a portion of the edge of the first substrate 121 is spaced apart from the hole wall of the lower liquid hole 1261 to form a liquid inlet 1217, and the second substrate 122 spans the entire lower liquid hole 1261. For example, the two side edges of the first substrate 121 along the BB direction are spaced apart from the hole wall of the lower liquid hole 1261 to form two symmetrically arranged liquid inlets 1217 (such as Figure 3a For example, the first substrate 121 has two side edges along the BB direction with notches 1261a, that is, the two side edges along the BB direction are spaced apart from the hole wall of the lower liquid hole 1261 to form a liquid inlet 1217 (as shown in FIG. Figure 4 As shown, Figure 4 yes Figure 3aA schematic diagram of another embodiment of the liquid inlet of the heating component is provided. For another example, a through hole 1261b is provided at the edge of the first substrate 121 as the liquid inlet 1217; the size, shape and number of the through hole 1261b are designed as required (e.g. Figure 5 As shown, Figure 5 yes Figure 3a A structural schematic diagram of another embodiment of the liquid inlet of the heating component provided).

[0115] Continue to see Figure 3a and Figure 3b , the edge of the first substrate 121 has two liquid inlets 1217. The direction parallel to the first substrate 121 includes a first direction (the direction shown by the BB line) and a second direction (the direction shown by the CC line) perpendicular to each other; along the first direction, the height of the gap 123 gradually increases, and the two liquid inlets 1217 are respectively arranged on opposite sides of the first substrate 121 along the first direction. Among them, the first substrate 121 is a rectangular substrate, the direction shown by the BB line is the length direction of the first substrate 121, that is, the first direction is the length direction of the first substrate 121; the direction shown by the CC line is the width direction of the first substrate 121, that is, the second direction is the width direction of the first substrate 121.

[0116] See also Figure 6 , Figure 6 It is a schematic diagram of the top structure of the second embodiment of the heating component provided in the present application.

[0117] The second embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: in the first embodiment of the heating component 12, the first substrate 121 has a plurality of first micropores 1213, while in the second embodiment of the heating component 12, there are no first micropores 1213 on the first substrate 121. Apart from this, the configuration of the second embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12 and will not be repeated herein.

[0118] In this embodiment, the first substrate 121 is a dense substrate, and the first micropores 1213 are not provided on the first substrate 121. By replenishing liquid at the liquid inlet 1217, bubbles are removed through the liquid inlet 1217 to prevent bubbles from entering the liquid storage chamber 13 and affecting the liquid supply, thereby preventing dry burning. It can be understood that by not providing the first micropores 1213 on the first substrate 121, the process flow can be reduced, which is conducive to ensuring the strength of the first substrate 121.

[0119] See also Figure 7 , Figure 7 It is a cross-sectional schematic diagram of the third embodiment of the heating component provided in the present application.

[0120] The third embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: in the first embodiment of the heating component 12, a gap 123 is formed between the first substrate 121 and the second substrate 122 by a fixing member 126, while in the third embodiment of the heating component 12, a gap 123 is formed between the first substrate 121 and the second substrate 122 by a spacer 125; in addition, the configuration of the third embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12, which will not be repeated.

[0121] In this embodiment, the heating component 12 further includes a spacer 125. The spacer 125 is disposed between the second surface 1212 of the first substrate 121 and the third surface 1221 of the second substrate 122, and is located at the edge of the first substrate 121 and / or the second substrate 122, so that the first substrate 121 and the second substrate 122 are disposed opposite to each other to form a gap 123.

[0122] Optionally, the edges of one end of the first substrate 121 and the second substrate 122 are abutted, and the edges of the other ends of the first substrate 121 and the second substrate 122 are provided with a spacer 125 (such as Figure 7 shown).

[0123] Optionally, only one spacer 125 is provided at one end of the first substrate 121 and / or the second substrate 122. In this case, the length of the spacer 125 is the same as the width of the first substrate 121 and / or the second substrate 122. The fixing structure of the fixing member 126 is only used to fix the first substrate 121 and / or the second substrate 122; by setting the material of the fixing member 126 to be silicone with a sealing function, the sealing of the first substrate 121 and the second substrate 122 is achieved.

[0124] Optionally, the height of the gap 123 gradually increases along the first direction (the length direction of the first substrate 121); two spacers 125 can be arranged between the second surface 1212 and the third surface 1221, and the two spacers 125 are respectively located at the edges of the first substrate 121 and the second substrate 122 at opposite ends, and the heights of the two spacers 125 are different (such as Figure 8 As shown, Figure 8 yes Figure 7 A schematic diagram of another embodiment of a spacer of a heat generating component is provided. The two spacers 125 are long strips and are arranged at the edges of the first substrate 121 and the second substrate 122 at opposite ends in parallel and spaced apart along a first direction; the length direction of the spacers 125 is parallel to a second direction (the width direction of the first substrate 121) that is perpendicular to the first direction (the length direction of the first substrate 121). Since the two spacers 125 have different heights, the height of the gap 123 gradually increases along the direction from one spacer 125 to the other spacer 125, that is, along the first direction.

[0125] Optionally, two spacers 125 may be provided between the second surface 1212 and the third surface 1221, and the two spacers 125 are respectively located at the edges of the first substrate 121 and the second substrate 122 at opposite ends. The height of the gap 123 gradually increases along the first direction (the length direction of the first substrate 121); the two spacers 125 are long strips and are arranged in parallel and spaced at the edges of the first substrate 121 and the second substrate 122 at opposite ends along the second direction (the width direction of the first substrate 121) perpendicular to the first direction (the length direction of the first substrate 121), that is, the length direction of the two spacers 125 is parallel to the first direction; the height of the two spacers 125 gradually increases along the first direction, so that the height of the gap 123 gradually increases along the first direction.

[0126] Optionally, the height of the gap 123 gradually increases along the first direction (the length direction of the first substrate 121); the spacer 125 includes a plurality of first sub-spacers (not shown) and a plurality of second sub-spacers (not shown), and the heights of the first sub-spacers and the second sub-spacers are different; the plurality of first sub-spacers are arranged at intervals and are arranged at the edge of one end of the first substrate 121 and / or the second substrate 122, and the plurality of first sub-spacers are arranged along the second direction (the width direction of the first substrate 121); the plurality of second sub-spacers are arranged at intervals and are arranged at the edge of the other end of the first substrate 121 and / or the second substrate 122, and the plurality of second sub-spacers are arranged along the second direction (the width direction of the first substrate 121). The fixing structure of the fixing member 126 is only used to fix the first substrate 121 and / or the second substrate 122; by setting the material of the fixing member 126 to silicone with a sealing function, the sealing of the first substrate 121 and the second substrate 122 is achieved.

[0127] Optionally, the height of the gap 123 gradually increases along the first direction (the length direction of the first substrate 121); two rows of spacers 125 are arranged in parallel and spaced apart at the edges of the first substrate 121 and the second substrate 122 at opposite ends along the second direction (the width direction of the first substrate 121); each row of spacers 125 is arranged along the first direction. The height of each row of spacers 125 arranged at intervals gradually increases along the first direction, so that the height of the gap 123 gradually increases along the first direction.

[0128] Optionally, the spacer 125 is an independently provided gasket, and the gasket is detachably connected to the first substrate 121 and the second substrate 122. The specific operation is: forming the first micropore 1213 on the first substrate 121, forming the second micropore 1223 on the second substrate 122, and then setting the gasket between the first substrate 121 and the second substrate 122, specifically, the gasket is set between the blank area 1215 of the first substrate 121 and the blank area 1225 of the second substrate 122. For example, the spacer 125 can be a silicone frame or a plastic frame.

[0129] Optionally, the spacer 125 is a support column or a support frame or a coating fixed to the second surface 1212 of the first substrate 121 and / or the third surface 1221 of the second substrate 122, the support column or the support frame is fixed to the second surface 1212 of the first substrate 121 and / or the third surface 1221 of the second substrate 122 by means of clamping or welding, and the coating is formed on the second surface 1212 of the first substrate 121 and / or the third surface 1221 of the second substrate 122 by means of electroplating, evaporation, deposition, etc. The specific operation is: forming the first micropore 1213 on the first substrate 121, forming the second micropore 1223 on the second substrate 122, and then integrating the support column or the support frame or the coating with the first substrate 121 and the second substrate 122 by means of welding, clamping or electroplating. For example, the first substrate 121 and the second substrate 122 are glass plates, glass powder is coated on the edge of the first substrate 121, and then the second substrate 122 is covered and the glass powder is sintered into glass using a laser to fix the support column or support frame to the first substrate 121 and the second substrate 122.

[0130] Optionally, the spacer 125 is a protrusion integrally formed with the first substrate 121 and / or the second substrate 122. If the spacer 125 is a protrusion integrally formed with the first substrate 121, a first micropore 1213 is formed on the first substrate 121, a second micropore 1223 is formed on the second substrate 122, and then the second substrate 122 is overlapped on the protrusion to form the gap 123. If the spacer 125 is a protrusion integrally formed with the second substrate 122, a first micropore 1213 is formed on the first substrate 121, a second micropore 1223 is formed on the second substrate 122, and then the first substrate 121 is overlapped on the protrusion to form the gap 123. For example, a groove is etched on the second surface 1212 of the first substrate 121, the sidewall of the groove serves as a spacer 125, and the first micropore 1213 is formed on the bottom wall of the groove; the third surface 1221 of the second substrate 122 is a plane, and the third surface 1221 of the second substrate 122 overlaps the sidewall end surface of the groove of the second surface 1212, that is, the third surface 1221 of the second substrate 122 is attached to the second surface 1212 of the first substrate 121, and the third surface 1221 cooperates with the groove to form a gap 123. If the bottom surface of the groove is interpreted as the second surface 1212, the sidewall of the groove can be interpreted as a protrusion of the second surface 1212.

[0131] See also Figure 9a and Figure 9b , Figure 9a is a schematic diagram of a top view of the structure of the fourth embodiment of the heating component provided by the present application, Figure 9b yes Figure 9a A schematic cross-sectional view of a heat generating component along the CC direction is provided.

[0132] The fourth embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: the height of the gap 123 in the first embodiment of the heating component 12 gradually increases along the first direction (the direction shown by the BB line), while the height of the gap 123 in the fourth embodiment of the heating component 12 gradually increases along the second direction (the direction shown by the CC line); in addition, the setting method of the fourth embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12, which will not be repeated.

[0133] In this embodiment, the first substrate 121 has two liquid inlets 1217 or cooperates with other components to form two liquid inlets 1217 , and the two liquid inlets 1217 are respectively disposed on two opposite sides of the first substrate 121 along a first direction (the direction indicated by line BB).

[0134] In a specific embodiment, the first substrate 121 and the second substrate 122 form a gap 123 through a spacer 125 , wherein the spacer 125 can be referred to in the above description. The fixing member 126 is only used to fix the first substrate 121 and the second substrate 122 .

[0135] Optionally, the edges of one end of the first substrate 121 and the second substrate 122 are abutted, and the edges of the other ends of the first substrate 121 and the second substrate 122 are provided with a plurality of spacers 125, and the plurality of spacers 125 are arranged at intervals. Among them, a groove (not shown) is provided on the first substrate 121 and / or the second substrate 122 at the end where the first substrate 121 abuts the second substrate 122, and the groove enables one of the two liquid inlets 1217 to communicate with the gap 123; the first substrate 121 and the second substrate 122 are provided with one end of the plurality of spacers 125, and by setting the plurality of spacers 125 at intervals, the other of the two liquid inlets 1217 is connected with the gap 123 through the flow channel between the two adjacent spacers 125.

[0136] Optionally, the spacer 125 includes a plurality of first sub-spacers 125a and a plurality of second sub-spacers 125b, wherein the first sub-spacers 125a and the second sub-spacers 125b have different heights; the plurality of first sub-spacers 125a are arranged at intervals and are disposed at the edge of one end of the first substrate 121 and / or the second substrate 122; the plurality of second sub-spacers 125b are arranged at intervals and are disposed at the edge of the other end of the first substrate 121 and / or the second substrate 122. One of the two liquid inlets 1217 is connected to the gap 123 through the flow channel between the two adjacent first sub-spacers 125a, and the other of the two liquid inlets 1217 is connected to the gap 123 through the flow channel between the two adjacent second sub-spacers 125b (e.g., Figure 9a and 9b shown).

[0137] Understandably, Figure 9aThe provided heating component 12 can also interpret the specific setting of the liquid inlet 1217 as two liquid inlets 1217 being respectively arranged on opposite sides of the first substrate 121 along the second direction (the direction shown by the BB line), and the height of the gap 123 gradually increases along the first direction (the direction shown by the CC line); because the definitions of the first direction and the second direction are different, different interpretations can be given.

[0138] See also Fig.10 , Fig.10 It is a cross-sectional schematic diagram of the fifth embodiment of the heating component provided in the present application.

[0139] The fifth embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: the third surface 1221 of the second substrate 122 in the fifth embodiment of the heating component 12 is provided with a groove structure, while the third surface 1221 of the second substrate 122 in the first embodiment of the heating component 12 is a plane; in addition, the configuration of the fifth embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12 and is not repeated here.

[0140] In this embodiment, corresponding to the atomization area M, the height of the gap 123 is less than 30 μm. Relative to the third surface 1221 of the second substrate 122 being a plane, a groove structure is set on the third surface 1221 of the second substrate 122. During the suction process, the gas will enter the groove structure through the second micropores 1223. Due to surface tension and other reasons, the bubbles are more inclined to enter the gap 123, and then discharged from the liquid inlet 1217 or the first micropores 1213 to the liquid storage chamber 13, so that the groove structure is unobstructed, thereby ensuring sufficient liquid supply and avoiding dry burning; therefore, the height range of the gap 123 is relatively large. When the height of the gap 123 is greater than 30 μm, it cannot well prevent the bubbles from growing in the vertical direction, which is not conducive to the discharge of bubbles and hinders the liquid from flowing down. Optionally, corresponding to the atomization area M, the height of the gap 123 is less than 5 μm.

[0141] In addition, by providing a groove structure on the third surface 1221 of the second substrate 122 , the liquid storage capacity of the gap 123 can be increased.

[0142] In one embodiment, the third surface 1221 of the second substrate 122 is provided with a plurality of first grooves 1221a extending along a first direction (the direction indicated by line BB) and a plurality of second grooves 1221b extending along a second direction (the direction indicated by line CC), and the first grooves 1221a and the second grooves 1221b are arranged crosswise. The plurality of first grooves 1221a and the plurality of second grooves 1221b form the above-mentioned groove structure (such as Fig.11 As shown, Fig.11 yes Fig.10 A schematic diagram of the partial enlarged structure of the third surface of the second substrate of the provided heating component).

[0143] The first groove 1221a and the second groove 1221b have a capillary effect, which can guide the aerosol-generating matrix in the lateral direction, so that the aerosol-generating matrix evenly enters the plurality of second micropores 1223, thereby playing a role of lateral liquid replenishment and further avoiding dry burning. The lateral direction refers to a direction that is not parallel to the extension direction of the second micropore 1223, for example, a direction perpendicular to the central axis of the second micropore 1223.

[0144] Since the first groove 1221a and the second groove 1221b have capillary force, they can be replenished laterally, and combined with the gap 123, the gas-liquid separation can be ensured, and the influence of bubbles on the liquid supply can be reduced. In addition, by providing a plurality of intersecting first grooves 1221a and second grooves 1221b on the third surface 1221, it is beneficial to guide the aerosol generating matrix in the gap 123 to the second micropore 1223, which is helpful for liquid supply.

[0145] The plurality of second micropores 1223 are distributed in an array, each first groove 1221a corresponds to one or more rows of second micropores 1223, each second groove 1221b corresponds to one or more columns of second micropores 1223, and the specific design is carried out according to needs. For example, each first groove 1221a corresponds to a row of second micropores 1223, and each second groove 1221b corresponds to a column of second micropores 1223 (e.g. Fig.11 shown).

[0146] The ratio of the depth to the width of the first groove 1221a is 0-20; when the ratio of the depth to the width of the first groove 1221a is greater than 20, the capillary force of the first groove 1221a cannot achieve a good lateral fluid replenishment effect. Optionally, the ratio of the depth to the width of the first groove 1221a is 1-5.

[0147] The ratio of the depth to the width of the second groove 1221b is 0-20; when the ratio of the depth to the width of the second groove 1221b is greater than 20, the capillary force of the second groove 1221b cannot achieve a good lateral fluid replenishment effect. Optionally, the ratio of the depth to the width of the second groove 1221b is 1-5.

[0148] In another embodiment, only a plurality of first grooves 1221a extending along the first direction (direction indicated by line BB) or only a plurality of second grooves 1221b extending along the second direction (direction indicated by line CC) are provided, that is, adjacent second micropores 1223 are connected in only one direction.

[0149] See also Fig.12 , Fig.12 It is a structural schematic diagram of the sixth embodiment of the heating component provided in the present application.

[0150] The sixth embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: in the first embodiment of the heating component 12, the first surface 1211 of the first substrate 121 is not parallel to the fourth surface 1222 of the second substrate 122; while in the sixth embodiment of the heating component 12, the first surface 1211 of the first substrate 121 is parallel to the fourth surface 1222 of the second substrate 122; in addition, the configuration of the sixth embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12, which will not be repeated.

[0151] It can be understood that the first surface 1211 and the fourth surface 1222 are arranged to be parallel to each other, so as to facilitate assembly to the fixing member 126 and to facilitate assembly of the heating component 12 to the atomizer seat 11 .

[0152] In one embodiment, the first surface 1211 and the second surface 1212 of the first substrate 121 are both planes, the third surface 1221 and the fourth surface 1222 of the second substrate 122 are both planes, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 and / or the third surface 1221 are inclined surfaces, so that the gap 123 formed between the second surface 1212 and the third surface 1221 gradually increases. Fig.12 As shown, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 is an inclined surface.

[0153] See also Fig.13 , Fig.13 1 is a schematic diagram of another embodiment of the first substrate and the second substrate in the sixth embodiment of the heating component provided by the present application. In another embodiment, the first surface 1211 of the first substrate 121 is a plane, the fourth surface 1222 of the second substrate 122 is a plane, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 of the first substrate 121 and / or the third surface 1221 of the second substrate 122 are curved surfaces, so that the gap 123 formed between the second surface 1212 and the third surface 1221 gradually increases. Fig.13 As shown, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 is a curved surface.

[0154] See also Fig.14 , Fig.141 is a schematic diagram of another embodiment of the first substrate and the second substrate in the sixth embodiment of the heating component provided by the present application. In another embodiment, the first surface 1211 of the first substrate 121 is a plane, the fourth surface 1222 of the second substrate 122 is a plane, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 of the first substrate 121 and / or the third surface 1221 of the second substrate 122 are step surfaces, so that the gap 123 formed between the second surface 1212 and the third surface 1221 gradually increases. Fig.14 As shown, the first surface 1211 and the fourth surface 1222 are parallel to each other, and the second surface 1212 is a step surface.

[0155] See also Fig.15 , Fig.15 It is a structural schematic diagram of the seventh embodiment of the heating component provided in this application.

[0156] The seventh embodiment of the heating component 12 is different from the first embodiment of the heating component 12 in that: in the first embodiment of the heating component 12, the height of the gap 123 gradually increases, while in the seventh embodiment of the heating component 12, the height of the gap 123 first gradually decreases and then gradually increases; in addition, the setting method of the seventh embodiment of the heating component 12 is the same as that of the first embodiment of the heating component 12, and will not be repeated.

[0157] In this embodiment, the first surface 1211 of the first substrate 121 is a plane, the fourth surface 1222 of the second substrate 122 is a plane, and the first surface 1211 and the fourth surface 1222 are parallel to each other; one of the second surface 1212 of the first substrate 121 and the third surface 1221 of the second substrate 122 is a folded surface, and the other is a plane, so that the height of the gap 123 formed between the second surface 1212 and the third surface 1221 first gradually decreases and then gradually increases, that is, the height of the gap 123 formed between the second surface 1212 and the third surface 1221 gradually increases from the middle to both sides or to the surroundings (such as Fig.15 shown).

[0158] In other embodiments, the first surface 1211 may not be parallel to the fourth surface 1222; at the point where the height of the gap 123 is the smallest, the second surface 1212 may or may not be in contact with the third surface 1221; one of the second surface 1212 and the third surface 1221 is a plane, and the other is a step surface or a curved surface, so that the height of the gap 123 can be gradually reduced and then gradually increased, and the specific design is based on needs.

[0159] It should be noted that the features of the heating component 12 provided in the above embodiments can be combined as needed and all belong to the protection scope of this application.

[0160] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A heating component, used in an electronic atomization device, for atomizing an aerosol to generate a matrix, It is characterized in that include: A first substrate having a first surface and a second surface disposed opposite to each other; The first substrate is a flat plate structure, and the thickness of the first substrate is in the range of 0.1-1 mm; The first substrate has a plurality of first micropores, and the first micropores are used to guide the aerosol generating substrate from the first surface to the second surface; The second substrate has a third surface and a fourth surface arranged opposite to each other; the second surface is arranged opposite to the third surface; the second substrate has a plurality of second micropores; the second substrate is a flat plate structure, and the thickness of the second substrate ranges from 0.1 to 1 mm; Wherein, the edge of the first substrate has a liquid inlet or cooperates with other elements to form a liquid inlet; the second surface and the third surface are arranged relative to each other to form a gap with capillary action, the gap connects the plurality of second micropores and the liquid inlet, and the gap connects the first micropores and the second micropores; the plurality of second micropores are used to guide the aerosol generating matrix from the gap to the fourth surface; the height of the gap changes in a gradient; wherein the bubbles in the gap are discharged from the liquid inlet and / or the first micropores, the large bubbles in the gap are discharged from the liquid inlet, and the small bubbles in the gap are discharged from the first micropores; The heating component also includes a fixing part, which has a sealing function; the fixing part has a lower liquid hole; a fixing structure is arranged on the hole wall of the lower liquid hole to fix the first substrate and the second substrate so that the first substrate and the second substrate form the gap; at least part of the edge of the first substrate is spaced apart from the hole wall of the lower liquid hole to form the liquid inlet, and the second substrate spans the entire lower liquid hole.

2. The heating component according to claim 1, It is characterized in that The second substrate includes an atomization area and a non-atomization area; The heating component further comprises a heating element, which is disposed on the fourth surface and located in the atomization region, and is used for heating and atomizing the aerosol generating substrate; Alternatively, at least a portion of the atomization region of the second substrate has a conductive function for heating and atomizing the aerosol generating substrate.

3. The heating component according to claim 2, It is characterized in that Corresponding to the atomization zone, the height of the gap is less than 30 μm.

4. The heating component according to claim 3, It is characterized in that The height of the gap is less than 5 μm.

5. The heating component according to claim 3, It is characterized in that The third surface is provided with a groove structure, corresponding to the atomization area, and the height of the gap is less than 30 μm; Alternatively, the third surface is a plane, and the height of the gap is less than 20 μm.

6. The heating component according to claim 1, It is characterized in that The second surface and the third surface are both planes; Or, one of the second surface and the third surface is a plane, and the other is a curved surface; Alternatively, one of the second surface and the third surface is a plane, and the other is a step surface.

7. The heating component according to claim 1, It is characterized in that The edge of the first substrate has two liquid inlets; the direction parallel to the first substrate includes a first direction and a second direction perpendicular to each other, and along the first direction, the height of the gap gradually increases; wherein, the two liquid inlets are respectively arranged on opposite sides of the first substrate along the first direction, or the two liquid inlets are respectively arranged on opposite sides of the first substrate along the second direction.

8. The heating component according to claim 1, It is characterized in that The heat generating component further includes a spacer, which is disposed between the second surface and the third surface and located at an edge of the first substrate and / or the second substrate, so that the first substrate and the second substrate are disposed opposite to each other to form the gap.

9. The heating component according to claim 8, It is characterized in that The spacer is an independently arranged gasket; Or, the spacer is a support column or a support frame or a coating fixed on the second surface and / or the third surface; Alternatively, the spacer is a protrusion integrally formed with the first substrate and / or the second substrate.

10. The heating component according to claim 8, It is characterized in that The edges of one end of the first substrate and the second substrate are in contact with each other, and the edges of the other end of the first substrate and the second substrate are provided with the spacer; or The spacers located at edges of both ends of the first substrate and the second substrate have different heights.

11. The heating component according to claim 8, It is characterized in that The spacer includes a plurality of first sub-spacers and a plurality of second sub-spacers, the first sub-spacers and the second sub-spacers have different heights; the plurality of first sub-spacers are arranged at intervals and are arranged at the edge of one end of the first substrate and / or the second substrate; the plurality of second sub-spacers are arranged at intervals and are arranged at the edge of the other end of the first substrate and / or the second substrate.

12. The heating component according to claim 1, It is characterized in that The capillary force of the second micropores is greater than the capillary force of the first micropores.

13. The heating component according to claim 1, It is characterized in that The second matrix is ​​a dense matrix, and the second micropores are straight holes that penetrate the third surface and the fourth surface.

14. The heating component according to claim 13, It is characterized in that The first matrix is ​​a dense matrix, and the first micropores are straight holes that penetrate the first surface and the second surface.

15. The heating component according to claim 14, It is characterized in that The pore size of the first micropores is 10 μm-150 μm.

16. The heating component according to claim 1, It is characterized in that A through hole is provided at the edge of the first substrate; the through hole serves as the liquid inlet.

17. An atomizer, It is characterized in that include: A liquid storage chamber, used for storing an aerosol-generating matrix; A heating component, wherein the heating component is the heating component according to any one of claims 1 to 16; the liquid inlet of the heating component is connected to the fluid of the liquid storage chamber, and the heating component is used to atomize the aerosol generating matrix.

18. An electronic atomization device, It is characterized in that include: An atomizer, wherein the atomizer is the atomizer according to claim 17; The host is used to provide electrical energy for the operation of the atomizer and control the heating component to atomize the aerosol generating matrix.

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