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 comprises a first surface and a second surface arranged oppositely, the first surface being a liquid absorption surface; the first substrate has a plurality of first liquid guide holes for guiding the aerosol generating matrix from the first surface to the second surface; the second substrate comprises a third surface and a fourth surface arranged oppositely, the fourth surface being an atomization surface; the third surface is opposite to the second surface and forms a gap; the second substrate has an atomization area, the atomization area has a plurality of second liquid guide holes for guiding the aerosol generating matrix from the third surface to the fourth surface; wherein at least one ventilation hole is provided on the second substrate, the ventilation hole is located in the atomization area, and the aperture of the ventilation hole is larger than the aperture of the second liquid guide hole. Through the above arrangement, the heating component has a ventilation function, which reduces the processing difficulty of the ventilation structure in the electronic atomization device.

Description

Technical Field

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

[0002] The main function of the electronic atomization device is realized by the atomization component, which atomizes the aerosol-generating matrix stored inside to generate aerosol for the user to inhale. Based on the required functions, the atomization component usually has a liquid storage chamber for storing the aerosol-generating matrix, a heating component for atomizing the aerosol-generating matrix, a fixing for preventing the liquid in the liquid storage chamber from being retained outside the heating component, and an air flow channel for the flow of external gas and aerosol. The user inhales the aerosol through the port of the air flow channel.

[0003] When the electronic atomizer device is heating and atomizing, as the aerosol-generating matrix in the liquid storage chamber is consumed, the gas space inside the liquid storage chamber increases, the air pressure in the liquid storage chamber decreases, and the resistance of the aerosol-generating matrix to the heating component increases, which can easily lead to insufficient liquid supply and dry burning. In order to solve this problem, a ventilation structure that connects the external gas and the liquid storage chamber is usually added to the atomizer seat. Driven by the pressure difference, the external gas replenishes the liquid storage chamber with gas through the ventilation structure to balance the air pressure. However, the current ventilation structure is difficult to process. Summary of the invention

[0004] The heating component, atomizer and electronic atomization device provided in the present application solve the technical problem that the ventilation structure is difficult to process in the prior art.

[0005] In order to solve the above-mentioned technical problems, the first technical solution provided in the present application is: a heating component is provided, which is applied to an electronic atomization device, and is used to atomize an aerosol generating matrix, including a first substrate and a second substrate; the first substrate includes a first surface and a second surface arranged opposite to each other; the first surface is a liquid absorption surface; the first substrate has a plurality of first liquid guide holes, which are used to guide the aerosol generating matrix from the first surface to the second surface; the second substrate includes a third surface and a fourth surface arranged opposite to each other; the fourth surface is an atomization surface; the third surface is opposite to the second surface and forms a gap; the second substrate has an atomization area, and the atomization area has a plurality of second liquid guide holes, which are used to guide the aerosol generating matrix from the third surface to the fourth surface; wherein, at least one ventilation hole is provided on the second substrate, the ventilation hole is located in the atomization area, and the aperture of the ventilation hole is larger than the aperture of the second liquid guide hole.

[0006] In one embodiment, the second liquid guiding hole is connected to the first liquid guiding hole through the gap.

[0007] In one embodiment, the capillary force of the second liquid conducting hole is greater than the capillary force of the first liquid conducting hole.

[0008] In one embodiment, the second matrix is ​​a dense matrix, and the second liquid guide hole is a through hole that penetrates the third surface and the fourth surface.

[0009] In one embodiment, the thickness of the second substrate is 0.2 mm to 1 mm, and / or the diameter of the ventilation holes is 100 μm to 200 μm.

[0010] In one embodiment, the pore size of the second liquid conducting hole is 10 μm to 100 μm, and / or the ratio of the pore size of the ventilation hole to the pore size of the second liquid conducting hole is 1:1 to 4:1.

[0011] In one embodiment, the first matrix is ​​a dense matrix, and the first liquid conducting hole is a through hole penetrating the first surface and the second surface.

[0012] In one embodiment, the material of the first substrate is quartz, glass or dense ceramic; the material of the second substrate is quartz, glass or dense ceramic.

[0013] In one embodiment, the heating component further comprises a heating element, wherein the heating element is disposed in the atomization region, and the heating element is used to atomize the aerosol generating substrate to generate aerosol.

[0014] In one embodiment, the ventilation holes are spaced apart from the heating element and the spacing is less than 200 μm.

[0015] Or, the ventilation hole is tangent to the heating element;

[0016] Or, part of the ventilation holes passes through the heating element;

[0017] Alternatively, the entire ventilation hole passes through the heating element.

[0018] In one embodiment, the heating element is in a strip shape, the number of the ventilation holes is plural, and the plurality of ventilation holes are arranged at intervals along the extension direction of the heating element.

[0019] In one embodiment, the heating element is bent multiple times in the atomization area to form a plurality of mutually parallel extensions, the plurality of ventilation holes are arranged in a plurality of rows, and the plurality of rows of ventilation holes and the plurality of extensions are alternately arranged.

[0020] In one embodiment, the heating element comprises a plurality of strip-shaped sub-heating elements, the plurality of sub-heating elements are spaced apart and arranged in parallel, and the ventilation hole is arranged between two adjacent sub-heating elements.

[0021] In one embodiment, the projection of the first substrate on the second substrate completely covers the heating element.

[0022] In one embodiment, the first substrate has a ventilation structure, and the projection of the ventilation hole on the first substrate is located in the ventilation structure.

[0023] In one embodiment, the first substrate is provided with a through hole corresponding to the atomization area of ​​the second substrate, and / or the edge of the first substrate has a liquid inlet; the through hole and / or the liquid inlet serve as the ventilation structure.

[0024] In one embodiment, the heating component further includes a fixing member having a lower liquid hole; at least a portion 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.

[0025] In one embodiment, the fixing member has a sealing function.

[0026] In order to solve the above technical problems, the second technical solution provided in the present application is: to provide a nebulizer, including a liquid storage chamber and a heating component; the liquid storage chamber is used to store a liquid aerosol generating matrix; the heating component is a heating component described in any one of the above; the heating component is connected to the fluid of the liquid storage chamber.

[0027] In one embodiment, the heating component is any one of the heating components described above, and the ventilation hole is provided in a region of the second substrate that can atomize the aerosol generating matrix to generate an aerosol.

[0028] In order to solve the above technical problems, the third technical solution provided in the present application is: to provide an electronic atomization device, comprising an atomizer and a host, the atomizer is the atomizer described in any one of the above items, and the host is electrically connected to the heating component.

[0029] Beneficial effects of the present application: Different from the prior art, 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 comprises a first surface and a second surface arranged oppositely, the first surface being a liquid absorption surface; the first substrate has a plurality of first liquid guide holes for guiding the aerosol generating matrix from the first surface to the second surface; the second substrate comprises a third surface and a fourth surface arranged oppositely, the fourth surface being an atomization surface; the third surface is opposite to the second surface and forms a gap; the second substrate has an atomization area, the atomization area has a plurality of second liquid guide holes for guiding the aerosol generating matrix from the third surface to the fourth surface; wherein at least one ventilation hole is provided on the second substrate, the ventilation hole is located in the atomization area, and the aperture of the ventilation hole is larger than the aperture of the second liquid guide hole. Through the above arrangement, the heating component has a ventilation function, which reduces the processing difficulty of the ventilation structure in the electronic atomization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 is a schematic diagram of the structure of the electronic atomization device provided in an embodiment of the present application;

[0032] Figure 2 yes Figure 1 A schematic diagram of the structure of an atomizer of the provided electronic atomization device;

[0033] Figure 3 yes Figure 2 A schematic structural diagram of an embodiment of a heating component of an atomizer is provided;

[0034] Figure 4 yes Figure 3 A schematic diagram of the structure of the heating component provided as viewed from the atomizing surface side;

[0035] Figure 5 yes Figure 3 A schematic diagram of the structure of the heating component provided as viewed from the liquid absorption surface side;

[0036] Figure 6 yes Figure 3 A schematic diagram of a cross-sectional structure of a heat generating component provided along a first direction;

[0037] Figure 7 yes Figure 3 A position diagram of an embodiment of a ventilation hole and a heating element of a provided heating assembly;

[0038] Figure 8 yes Figure 3 A position diagram of an embodiment of a ventilation hole and a heating element of a provided heating assembly;

[0039] Fig. 9 yes Figure 3 A position diagram of an embodiment of a ventilation hole and a heating element of a provided heating assembly;

[0040] Fig.10 yes Figure 3 A position diagram of an embodiment of a ventilation hole and a heating element of a provided heating assembly;

[0041] Fig.11 is a plot of the viscosity of the aerosol-generating matrix versus temperature;

[0042] Fig.12 yes Figure 2 A schematic structural diagram of another embodiment of a heating component of the provided atomizer viewed from the atomizing surface side;

[0043] Fig.13 yes Figure 2 A schematic structural diagram of a second substrate viewed from the atomizing surface side in another embodiment of a heating assembly of the provided atomizer;

[0044] Fig.14 yes Figure 2 A schematic structural diagram of another embodiment of a heating component of an atomizer is provided. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0050] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the electronic atomization device provided in an embodiment of the present application.

[0051] 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.

[0052] The atomizer 1 is used to store the aerosol generating substrate and atomize the aerosol generating substrate to form an aerosol for the user 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 substrate and generate an aerosol for the smoker to inhale. The following embodiments all take this leisure smoking as an example.

[0053] The specific structure and function of the atomizer 1 may refer to the specific structure and function of the atomizer 1 involved in the following embodiments, and the same or similar technical effects can be achieved, which will not be repeated here.

[0054] 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.

[0055] The atomizer 1 and the host 2 can be integrally arranged or detachably connected, and can be designed according to specific needs.

[0056] See also Figure 2 , Figure 2 yes Figure 1 A schematic structural diagram of an atomizer of an electronic atomization device is provided.

[0057] The atomizer 1 includes a housing 10, a heating component 11, and an atomizer seat 12. The atomizer seat 12 has an installation cavity (not shown), and the heating component 11 is arranged in the installation cavity; the heating component 11 and the atomizer seat 12 are arranged in the housing 10 together. The housing 10 is formed with a mist outlet channel 13, and the inner surface of the housing 10, the outer surface of the mist outlet channel 13 and the top surface of the atomizer seat 12 cooperate to form a liquid storage cavity 14, which is used to store liquid aerosol generating matrix. Among them, the heating component 11 is electrically connected to the host 2 to generate aerosol by atomizing the aerosol generating matrix.

[0058] The atomizing seat 12 includes an upper seat 121 and a lower seat 122. The upper seat 121 and the lower seat 122 cooperate to form an installation cavity; the atomizing surface of the heating component 11 cooperates with the cavity wall of the installation cavity to form an atomizing cavity 120. A lower liquid channel 1211 is provided on the upper seat 121; the aerosol generating matrix channel in the liquid storage cavity 14 flows into the heating component 11 through the lower liquid channel 1211, that is, the heating component 11 is fluidically connected with the liquid storage cavity 14. An air inlet channel 15 is provided on the lower seat 122, and external gas enters the atomizing cavity 120 through the air inlet channel 15, carrying the aerosol atomized by the heating component 11 to flow to the mist outlet channel 13, and the user inhales the aerosol through the port of the mist outlet channel 13.

[0059] See also Figures 3 to 6 , Figure 3 yes Figure 2 A schematic diagram of the structure of an embodiment of a heating component of an atomizer is provided, Figure 4 yes Figure 3 The schematic diagram of the structure of the heating component provided is viewed from the atomizing surface side. Figure 5 yes Figure 3 The schematic diagram of the structure of the heating component provided is viewed from the liquid absorption side. Figure 6 yes Figure 3A schematic diagram of the cross-sectional structure of a heat generating component along a first direction is provided.

[0060] The heat generating component 11 includes a first base 111 and a second base 112 .

[0061] The first substrate 111 includes a first surface 1111 and a second surface 1112 that are oppositely arranged, and the first surface 1111 is a liquid absorption surface; the first substrate 111 has a plurality of first liquid guide holes 1113, and the first liquid guide holes 1113 are used to guide the aerosol generating matrix from the first surface 1111 to the second surface 1112, that is, the first liquid guide holes 1113 are used to guide the aerosol generating matrix from the liquid absorption surface to the second surface 1112.

[0062] The second substrate 112 includes a third surface 1121 and a fourth surface 1122 that are disposed opposite to each other, and the fourth surface 1122 is an atomized surface. The second substrate 112 has an atomized area A and a non-atomized area B (eg Figure 4 As shown), the atomization area A has a plurality of second liquid guide holes 1123, and the second liquid guide holes 1123 are used to guide the aerosol generating matrix from the third surface 1121 to the fourth surface 1122, that is, the second liquid guide holes 1123 are used to guide the aerosol generating matrix from the third surface 1121 to the atomization surface.

[0063] The second surface 1112 of the first substrate 111 is opposite to the third surface 1121 of the second substrate 112 and forms a gap 113 (eg Figure 6 As shown), the second liquid guide hole 1123 is connected to the first liquid guide hole 1113 through the gap 113. In this embodiment, the first substrate 111 and the second substrate 112 are parallel and spaced apart. It can be understood that the aerosol generating matrix in the liquid storage chamber 14 flows to the first surface 1111 of the first substrate 111 through the lower liquid channel 1211, is guided to the second surface 1112 of the first substrate 111 by the capillary force of the first liquid guide hole 1113, and then enters the gap 113, and is then guided from the third surface 1121 of the second substrate 112 to the fourth surface 1122 by the capillary force of the second liquid guide hole 1123; that is, the aerosol generating matrix flows from the liquid absorption surface to the atomization surface under the action of gravity and / or capillary force. The aerosol generating matrix is ​​heated and atomized in the atomization area A to generate an aerosol. The capillary force of the second liquid guiding hole 1123 is greater than the capillary force of the first liquid guiding hole 1113, so that the aerosol generating substrate can flow from the gap 113 to the atomizing surface. In this embodiment, the viscosity of the aerosol generating substrate is 20-300 cps.

[0064] In this embodiment, at least one ventilation hole 1124 is provided on the second substrate 112, and the ventilation hole 1124 is located in the atomization area A, and the aperture of the ventilation hole 1124 is larger than the aperture of the second liquid guide hole 1123. By providing the ventilation hole 1124 on the second substrate 112 of the heating component 11, one end of the ventilation hole 1124 is connected to the liquid storage chamber 14, and the other end of the ventilation hole 1124 is connected to the atomization chamber 120 or the external gas, the ventilation of the liquid storage chamber 14 is achieved through the ventilation hole 1124, and the balanced air pressure in the liquid storage chamber 14 is maintained, thereby ensuring that the liquid in the liquid storage chamber 14 flows smoothly, so that the heating component 11 is adequately supplied with liquid. That is to say, the heating component 11 provided in the embodiment of the present application has a ventilation function by setting ventilation holes 1124 on the second substrate 112, and ventilation of the liquid storage chamber 14 can be achieved without setting additional ventilation structures on other structures of the atomizer 1; in addition, compared with setting ventilation structures on other structures of the atomizer 1, the process of setting ventilation holes 1124 on the second substrate 112 is much simpler, thereby reducing the processing difficulty of the ventilation structure in the electronic atomization device.

[0065] Furthermore, the ventilation holes 1124 are arranged in the atomization area A of the second substrate 112. During the atomization process, the atomization area A is in a high temperature state, and the aerosol generating matrix in the ventilation holes 1124 is also atomized. After the aerosol generating matrix in the ventilation holes 1124 is consumed, the ventilation holes 1124 are connected with the atomization chamber 120 to realize the ventilation of the liquid storage chamber 14.

[0066] By setting the first substrate 111 on the side of the second substrate 112 close to the liquid storage chamber 14, a gap 113 is formed between the second surface 1112 of the first substrate 111 and the third surface 1121 of the second substrate 112. The gap 113 can prevent the air intake of the ventilation hole 1124 and the second liquid guide hole 1123 during the atomization process from forming larger bubbles on the third surface 1121 of the second substrate 112, thereby preventing the bubbles from obstructing the liquid supply and thus avoiding dry burning. By setting the gap 113, horizontal liquid replenishment can be achieved. Even if the bubbles adhere to the liquid absorption surface of the first substrate 111 and cover part of the first liquid guide hole 1113, the liquid supply of the second substrate 112 is not affected. In addition, by setting the first substrate 111 on the side of the second substrate 112 close to the liquid storage chamber 14, the first substrate 111 can be insulated to a certain extent, preventing the heat on the second substrate 112 from being transferred to the liquid storage chamber 14, which is conducive to ensuring the consistency of taste.

[0067] Specifically, the first substrate 111 may be a porous substrate with disordered through-holes, such as porous ceramics, cotton, quartz sand cores, and foam structure materials; the first substrate 111 itself has a plurality of micropores as first liquid guide holes 1113. The first substrate 111 may also be a dense substrate with ordered through-holes, such as quartz, glass, and dense ceramics with ordered through-holes; in one embodiment, the first liquid guide holes 1113 are straight through holes that penetrate the first surface 1111 and the second surface 1112. When the material of the first substrate 111 is glass, it may be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

[0068] The second substrate 112 may be a porous substrate with disordered through-holes, such as porous ceramics, cotton, quartz sand cores, and foam structure materials; the multiple micropores of the second substrate 112 itself are the second liquid guide holes 1123. The second substrate 112 may also be a dense substrate with ordered through-holes, such as quartz, glass, and dense ceramics with ordered through-holes; in one embodiment, the second liquid guide holes 1123 are straight holes that penetrate the third surface 1121 and the fourth surface 1122. When the material of the second substrate 112 is glass, it may be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

[0069] The materials of the first substrate 111 and the second substrate 112 may be the same or different. The first substrate 111 and the second substrate 112 may be arbitrarily combined, for example, the first substrate 111 is a porous ceramic, and the second substrate 112 is a dense substrate; for another example, the first substrate 111 is a porous ceramic, and the second substrate 112 is a porous ceramic; for another example, the first substrate 111 is a dense substrate, and the second substrate 112 is a porous ceramic; for another example, the first substrate 111 is a dense substrate, and the second substrate 112 is a porous ceramic.

[0070] The first substrate 111 and the second substrate 112 are both in the form of sheets. It can be understood that the sheet-like shape is relative to the block-like shape, and the ratio of the length to the thickness of the sheet is greater than the ratio of the length to the thickness of the block-like shape. The first substrate 111 and the second substrate 112 can be in the form of a flat plate, an arc, a cylinder, etc., and are specifically designed according to needs. Other structures of the atomizer 1 are arranged in coordination with the shapes of the first substrate 111 and the second substrate 112.

[0071] The following example takes the case where both the first substrate 111 and the second substrate 112 are dense substrates and both the first substrate 111 and the second substrate 112 are flat plates (eg Figure 3 ) is shown in the figure to introduce the heating component 11 in detail.

[0072] The thickness of the second substrate 112 is 0.2 mm to 1 mm. When the thickness of the second substrate 112 is greater than 1 mm, the liquid supply demand cannot be met, resulting in a decrease in the amount of aerosol, and the resulting heat loss is large, and the cost of setting the second liquid guide hole 1123 is high; when the thickness of the second substrate 112 is less than 0.2 mm, the strength of the second substrate 112 cannot be guaranteed, which is not conducive to improving the performance of the electronic atomization device. Optionally, the thickness of the second substrate 112 is 0.2 mm to 0.5 mm.

[0073] The aperture of the second liquid guide hole 1123 is 10 μm to 100 μm. When the aperture of the second liquid guide hole 1123 is less than 10 μm, 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 second liquid guide hole 1123 is greater than 100 μm, the aerosol generation matrix is ​​easy to flow out of the second liquid guide hole 1123 to cause leakage, resulting in a decrease in atomization efficiency. Optionally, the aperture of the second liquid guide hole 1123 is 15 μm to 60 μm.

[0074] The shape of the ventilation hole 1124 is not limited, for example, it can be a circular hole. The aperture of the ventilation hole 1124 is 50μm to 200μm, and the ventilation pressure of the ventilation hole 1124 is -600Pa to -1200Pa. If the aperture of the ventilation hole 1124 is greater than 200μm, there may be a risk of leakage; if the aperture of the ventilation hole 1124 is less than 50μm, it cannot achieve a good ventilation effect, thereby affecting the liquid delivery speed and atomization efficiency. It can be understood that the aperture of the ventilation hole 1124 can be designed according to the thickness of the second substrate 112 and the preset ventilation pressure. When the pressure difference on both sides of the heating component 11 reaches the preset ventilation pressure, the aerosol generating matrix in the ventilation hole 1124 is pushed out by the gas to ventilate the liquid storage chamber 14.

[0075] It is understandable that the thickness of the second substrate 112, the aperture of the second liquid guide hole 1123, and the aperture of the ventilation hole 1124 can be selected according to actual needs. Optionally, the ratio of the aperture of the ventilation hole 1124 to the aperture of the second liquid guide hole 1123 is 1:1 to 4:1, for example, 2:1, which can achieve a better ventilation effect.

[0076] The thickness of the first substrate 111 and the aperture of the first liquid guide hole 1113 are specifically designed as needed. Optionally, the aperture of the first liquid guide hole 1113 is larger than the aperture of the second liquid guide hole 1123, so that the capillary force of the second liquid guide hole 1123 is greater than the capillary force of the first liquid guide hole 1113, and the aerosol generating matrix can flow from the gap 113 to the atomization surface of the second substrate 112 (i.e., the fourth surface 1122 of the second substrate 112). Since the first liquid guide hole 1113 also has a capillary force, when the port of the mist outlet channel 13 is used downward, it can prevent liquid reflux and prevent insufficient liquid supply.

[0077] See also Figure 4 , the heating component 11 also includes a heating element 114, a positive electrode 116 and a negative electrode 117, and the two ends of the heating element 114 are electrically connected to the positive electrode 116 and the negative electrode 117 respectively. The heating element 114 is arranged in the atomization area A of the second substrate 112 to generate aerosol by atomizing aerosol generation matrix. The positive electrode 116 and the negative electrode 117 are both arranged on the fourth surface 1122 of the second substrate 112 to facilitate electrical connection with the host 2. The heating element 114 can be a heating sheet, a heating film, a heating net, etc., which can heat the atomized aerosol generation matrix. The heating element 114 can be arranged on the fourth surface 1122 of the second substrate 112 (i.e., the atomization surface of the second substrate 112), or it can be buried in the interior of the second substrate 112, and it is specifically designed according to needs. In other embodiments, the second substrate 112 has a conductive function, and it can generate heat by itself, for example, a conductive ceramic that generates heat by itself or a glass with a conductive function, and there is no need to set up a heating element 114 at this time. That is to say, the heating element 114 is an optional structure.

[0078] When the heating element 114 is a separate element, the projection of the first substrate 111 on the second substrate 112 completely covers the heating element 114 to ensure that the liquid supply speed can meet the atomization speed of the heating element 114 and achieve a better atomization effect.

[0079] Since the second substrate 112 is a dense substrate, the heat generated by the heating element 114 is conducted to the second substrate 112 to atomize the aerosol-generating matrix in the second liquid guide hole 1123 or the ventilation hole 1124. The area in the atomization area A that is closer to the heating element 114 has a higher temperature and is sufficient to atomize the aerosol-generating matrix to generate an aerosol, which is defined as a high-temperature area; the area in the atomization area A that is farther from the heating element 114 may not conduct enough heat to atomize the aerosol-generating matrix to generate an aerosol, which is defined as a low-temperature area. Therefore, in order to enable the aerosol-generating matrix in the ventilation hole 1124 to be atomized to achieve ventilation, the ventilation hole 1124 is set in the high-temperature area of ​​the second substrate 112 that can atomize the aerosol-generating matrix to generate an aerosol.

[0080] Optionally, the ventilation hole 1124 is spaced apart from the heating element 114 (eg Figure 4 As shown) and the spacing is less than 200 μm, it is convenient for the aerosol generating matrix in the ventilation hole 1124 to be atomized. After the aerosol generating matrix in the ventilation hole 1124 is consumed, the ventilation hole 1124 is connected with the atomizing chamber 120 to realize the ventilation of the liquid storage chamber 14.

[0081] Optionally, the ventilation hole 1124 is tangent to the heating element 114 (eg Figure 7 As shown, Figure 7 yes Figure 3A position diagram of the ventilation holes and heating elements of a heating component provided.

[0082] Optionally, part of the ventilation holes 1124 pass through the heating element 114 (such as Figure 8 As shown, Figure 8 yes Figure 3 A position diagram of the ventilation holes and heating elements of a heating component provided.

[0083] Optionally, the entire ventilation hole 1124 passes through the heating element 114 (eg Fig. 9 As shown, Fig. 9 yes Figure 3 A position diagram of the ventilation holes and heating elements of a heating component provided.

[0084] Optionally, the ventilation holes 1124 may be partially located in the atomization zone A where the second liquid guide hole 1123 is provided, and partially located in the non-atomization zone B where the second liquid guide hole 1123 is not provided. The non-atomization zone B is a blank zone (the specific definition of the blank zone is described in detail in the subsequent content). It can be understood that when there are multiple ventilation holes 1124, a part of the multiple ventilation holes 1124 are located in the atomization zone A, and another part of the multiple ventilation holes 1124 are located in the non-atomization zone B; when the number of the ventilation holes 1124 is one, a part of the ventilation holes 1124 is located in the atomization zone A, and another part of the ventilation holes 1124 is located in the atomization zone B (such as Fig.10 As shown, Fig.10 yes Figure 3 A position diagram of the ventilation holes and heating elements of a heating component provided.

[0085] It can be understood that during the atomization process of the heating component 11, the temperature of the atomization area A is higher than the temperature of the non-atomization area B, and the temperature in the atomization area A is higher as it is closer to the heating element 114; the higher the temperature, the lower the viscosity of the aerosol generating matrix (e.g. Fig.11 As shown, Fig.11 1124 is a graph showing the relationship between the viscosity and temperature of the aerosol generating substrate). Therefore, the closer the ventilation hole 1124 is to the heating element 114, the better the fluidity of the aerosol generating substrate in the ventilation hole 1124 is, and the more conducive it is for the ventilation hole 1124 to ventilate the liquid storage chamber 14 during the atomization process. In other words, the ventilation hole 1124 is spaced from the heating element 114 with a gap of less than 200 μm; or, the ventilation hole 1124 is tangent to the heating element 114; or, part of the ventilation hole 1124 passes through the heating element 114; or, the entire ventilation hole 1124 passes through the heating element 114, which can achieve a better ventilation effect.

[0086] In this embodiment, the heating element 114 is strip-shaped, and the number of ventilation holes 1124 is multiple, and the multiple ventilation holes 1124 are arranged at intervals along the extension direction of the heating element 114. Specifically, the heating element 114 is bent multiple times in the atomization area A to form multiple parallel extensions 1141, and the heating element 114 also includes a connecting portion 1142 connecting two adjacent extensions 1141. The multiple ventilation holes 1124 are arranged in multiple rows, and the multiple rows of ventilation holes 1124 and the multiple extensions 1141 are alternately arranged (such as Figure 4 shown).

[0087] Exemplarily, the plurality of ventilation holes 1124 are arranged into four rows, with three ventilation holes 1124 in each row; the heating element 114 is bent in the atomization area A to form three mutually parallel extension portions 1141, the four rows of ventilation holes 1124 and the three extension portions 1141 are alternately arranged, and each row of ventilation holes 1124 is spaced apart from the adjacent connecting portion 1142.

[0088] See also Fig.12 , Fig.12 yes Figure 2 A schematic diagram of the structure of another embodiment of the heating component of the atomizer provided is viewed from the atomization surface side. In another embodiment, the heating element 114 includes a plurality of strip-shaped sub-heating elements 114a in the atomization area A, and the plurality of sub-heating elements 114a are spaced apart and arranged in parallel, and each sub-heating element 114a spans the atomization area A and its two ends are electrically connected to the positive electrode 116 and the negative electrode 117 respectively; the ventilation hole 1124 is arranged between two adjacent sub-heating elements 114a. It can be understood that since the heat of the sub-heating element 114a can be received on both sides of the ventilation hole 1124, during the operation of the electronic atomization device, the aerosol generating matrix in the ventilation hole 1124 is relatively easy to be atomized, which is conducive to realizing the ventilation function. It should be noted that Fig.12 The heating element assembly shown is Figure 3 Compared with the heating assembly shown in the figure, only the shape of the heating element 114 is different, and the other structures are the same.

[0089] See also Fig.13 , Fig.13 yes Figure 2A schematic structural diagram of the second substrate in another embodiment of the heating component of the atomizer provided is viewed from the atomization surface side. In another embodiment, the heating element 114 includes a plurality of first sub-heating portions 1141a extending along the first direction and a plurality of second sub-heating portions 1141b extending along the second direction, and the second sub-heating portion 1141b connects two adjacent first sub-heating portions 1141a. The two ends of the heating element 114 are electrically connected to the positive electrode 116 and the negative electrode 117, respectively. The positive electrode 116 and the negative electrode 117 are located on the same side of the heating element 114. The width of the positive electrode 116 and the negative electrode 117 is greater than the width of the heating element 114. The ventilation hole 1124 is arranged between adjacent first sub-heating portions 1141a. Since the heat of the first sub-heating portion 1141a can be received on both sides of the ventilation hole 1124, during the operation of the electronic atomization device, the aerosol generating matrix in the ventilation hole 1124 is relatively easy to be atomized, which is conducive to realizing the ventilation function. It should be noted that, Fig.13 The heating element assembly shown is Figure 3 Compared with the heating assembly shown in the figure, the shape of the heating element 114 is different, and the positional relationship between the heating element 114 and the positive electrode 116 and the negative electrode 117 is different, while the other structures are the same.

[0090] Continue to see Figure 5 and Figure 6 The first substrate 111 has a ventilation structure 1114. The projection of the ventilation hole 1124 on the first substrate 111 is located in the ventilation structure 1114. The ventilation structure 1114 exposes the ventilation hole 1124 to the lower liquid channel 1211. After the aerosol generating matrix in the ventilation hole 1124 is consumed during the atomization process, the ventilation hole 1124 connects the atomization chamber 120 with the liquid storage chamber 14 to achieve ventilation of the liquid storage chamber 14. The ventilation structure 1114 makes it easier for gas to enter the liquid storage chamber 14 through the ventilation hole 1124.

[0091] Specifically, a through hole 1114a is provided in the atomization area A of the first substrate 111 corresponding to the second substrate 112, and the through hole 1114a exposes the ventilation hole 1124 to the lower liquid channel 1211; and / or, the edge of the first substrate 111 has a liquid inlet 1115, and the liquid inlet 1115 exposes the ventilation hole 1124 to the lower liquid channel 1211. The through hole 1114a and / or the liquid inlet 1115 serve as the ventilation structure 1114. The location and manner of the ventilation structure 1114 are specifically designed according to needs, so that the ventilation hole 1124 provided on the second substrate 112 can be exposed to the lower liquid channel 1211.

[0092] For example, see Figures 3 to 5, twelve ventilation holes 1124 are provided on the second substrate 112, and three ventilation holes 1124 form a row. The heating element 114 includes three mutually parallel extensions 1141 and two connecting portions 1142 connecting two adjacent extensions 1141. The four rows of ventilation holes 1124 and the three extensions 1141 are arranged alternately. Liquid inlets 1115 are provided at the two opposite edges of the first substrate 111, respectively exposing the ventilation holes 1124 located on both sides of the heating element 114. At the same time, two through holes 1114a are provided in the middle position of the first substrate 111, respectively exposing the ventilation holes 1124 in the two middle rows.

[0093] It can be understood that the gap 113 is connected to the liquid storage chamber 14 through the liquid inlet 1115 and the first liquid guide hole 1113.

[0094] Continue to see Figure 6 The heating component 11 further includes a fixing member 115, and the fixing member 115 has a lower liquid hole 1151. Optionally, the fixing member 115 has a sealing function, and the material of the fixing member 115 is silicone or fluororubber.

[0095] Optionally, at least a portion of the edge of the first substrate 111 is spaced apart from the hole wall of the lower liquid hole 1151 to form a liquid inlet 1115, and the second substrate 112 spans the entire lower liquid hole 1151; for example, two opposite long sides of the first substrate 111 are spaced apart from the hole wall of the lower liquid hole 1151 to form two symmetrically arranged liquid inlets 1115 (such as Figure 5 shown).

[0096] Optionally, a through hole (not shown) is provided on the edge of the first substrate 111 to form a liquid inlet 1115 , and the second substrate 112 spans the entire lower liquid hole 1151 .

[0097] The projection of the first substrate 111 on the atomizing surface completely covers the heating element 114, and the liquid inlet 1115 is arranged offset from the heating element 114. By arranging the liquid inlet 1115 on the first substrate 111, not only can the gap 113 be replenished with liquid through the liquid inlet 1115, but also bubbles can be removed through the liquid inlet 1115, thereby preventing bubbles from entering the liquid storage chamber 14 and affecting the liquid supply, thereby avoiding dry burning.

[0098] The lower liquid hole 1151 is in fluid communication with the liquid storage chamber 14 through the lower liquid channel 1211. The first substrate 111 and / or the second substrate 112 are embedded in the lower liquid hole 1151, that is, the fixing member 115 is used to fix the periphery of the first substrate 111 and / or the second substrate 112. When the fixing member 115 covers the periphery of the second substrate 112, the fixing member 115 does not block the heating element 114, and the lower liquid hole 1151 can fully expose the heating element 114. Optionally, the hole wall of the lower liquid hole 1151 has an annular mounting groove (not shown), and the edge of the first substrate 111 and / or the second substrate 112 is embedded in the annular mounting groove, and the first substrate 111 and the second substrate 112 form a gap 113. It is understandable that the first substrate 111 and the second substrate 112 may be arranged parallel to each other and spaced apart to form the gap 113 ; or the first substrate 111 and the second substrate 112 may be arranged non-parallel to form the gap 113 . Specifically, an angle is formed between the first substrate 111 and the second substrate 112 .

[0099] Continue to see Figure 4 , the second substrate 112 also has a non-atomized area B, which is a blank area of ​​the second substrate 112. The positive electrode 116 and the negative electrode 117 are arranged in the non-atomized area B. Among them, the size of the area around the atomized area A of the second substrate 112 in the present application is larger than the aperture of the second liquid guide hole 1123, and it can be called a blank area; that is, the blank area in the present application is an area where the second liquid guide hole 1123 can be formed but the second liquid guide hole 1123 is not formed, rather than an area around the atomized area A where the second liquid guide hole 1123 cannot be formed. In one embodiment, the distance between the second liquid guide hole 1123 closest to the edge line of the second substrate 112 and the edge line of the second substrate 112 is larger than the aperture of the second liquid guide hole 1123, and it is considered that a blank area is provided in the circumferential direction of the atomized area A.

[0100] That is to say, only the atomization area A of the second substrate 112 is provided with a plurality of second liquid guide holes 1123, and no second liquid guide holes 1123 are provided in the non-atomization area B, thereby reducing the number of second liquid guide holes 1123 on the second substrate 112, thereby improving the strength of the second substrate 112 and reducing the production cost of providing the second liquid guide holes 1123 on the second substrate 112. By providing a plurality of second liquid guide holes 1123 in the atomizer A, the heating element 114 located in the atomization area A can contact the aerosol generating substrate through the second liquid guide holes 1123, thereby atomizing and generating aerosol; and the plurality of second liquid guide holes 1123 in the atomization area A cover the heating element 114 and the surrounding area of ​​the heating element 114, that is, basically cover the area reaching the temperature of the atomized aerosol generating substrate, making full use of the thermal efficiency. The positive electrode 116 and the negative electrode 117 are provided in the non-atomization area B to ensure the stability of the electrical connection between the positive electrode 116 and the negative electrode 117.

[0101] Whether the first liquid guiding holes 1113 are disposed on the entire surface of the first substrate 111 or only on a part of the surface can be designed according to needs, and this application does not limit this.

[0102] See also Fig.14 , Fig.14 yes Figure 2 A schematic structural diagram of another embodiment of a heating component of an atomizer is provided.

[0103] Fig.14 The heat generating components shown are Figure 3 The heat generating components shown differ in that: Figure 3 In the heat generating component 11 shown, the first substrate 111 and the second substrate 112 are arranged parallel to each other and spaced apart to form a gap 113; Fig.14 In the heating component 11 shown, an angle β is formed between the first substrate 111 and the second substrate 112 to form a gap 113, and the angle β is an acute angle, for example, 0°<β≤30°, that is, the height of the gap 113 is inconsistent; in addition, Fig.14 The structure of the heating component 11 shown is similar to Figure 3 The structure of the heating component 11 shown is the same and will not be described again.

[0104] Specifically, an angle may be formed between the first substrate 111 and the second substrate 112 by the fixing member 115 , or by other structural members, and the angle is specifically designed according to needs.

[0105] 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, applied to an electronic atomization device, for atomizing an aerosol to generate a matrix, characterized in that: include: A first substrate including a first surface and a second surface disposed opposite to each other; The first surface is a liquid absorbing surface; The first substrate has a plurality of first liquid guiding holes for guiding the aerosol generating substrate from the first surface to the second surface; The second substrate comprises a third surface and a fourth surface which are arranged opposite to each other; the fourth surface is an atomization surface; the third surface is opposite to the second surface and forms a gap; the second substrate has an atomization area, and the atomization area has a plurality of second liquid guide holes for guiding the aerosol generating matrix from the third surface to the fourth surface; Among them, at least one ventilation hole is provided on the second substrate, the ventilation hole is located in the atomization area, and the aperture of the ventilation hole is larger than the aperture of the second liquid guide hole; the aperture of the ventilation hole is 100μm~200μm; the first substrate has a ventilation structure, and the projection of the ventilation hole on the first substrate is located in the ventilation structure.

2. The heating component according to claim 1, characterized in that: The second liquid guiding hole is communicated with the first liquid guiding hole through the gap.

3. The heating component according to claim 2, characterized in that: The capillary force of the second liquid guiding hole is greater than the capillary force of the first liquid guiding hole.

4. The heating component according to claim 1, characterized in that: The second matrix is ​​a dense matrix, and the second liquid guide hole is a straight hole that penetrates the third surface and the fourth surface.

5. The heating component according to claim 4, characterized in that: The thickness of the second substrate is 0.2 mm to 1 mm.

6. The heating component according to claim 4, characterized in that: The aperture of the second liquid guiding hole is 10 μm to 100 μm, and / or the ratio of the aperture of the ventilation hole to the aperture of the second liquid guiding hole is 1:1 to 4:

1.

7. The heating component according to claim 4, characterized in that: The first matrix is ​​a dense matrix, and the first liquid guide hole is a through hole that penetrates the first surface and the second surface.

8. The heating component according to claim 7, characterized in that: The material of the first substrate is quartz, glass or dense ceramic; the material of the second substrate is quartz, glass or dense ceramic.

9. The heating component according to claim 1, characterized in that: The heating component further comprises a heating element, which is arranged in the atomization area and is used for atomizing the aerosol generating substrate to generate aerosol.

10. The heating component according to claim 9, characterized in that: The ventilation holes are spaced apart from the heating element and the spacing is less than 200 μm; Or, the ventilation hole is tangent to the heating element; Or, part of the ventilation holes passes through the heating element; Alternatively, the entire ventilation hole passes through the heating element.

11. The heating component according to claim 9, characterized in that: The heating element is strip-shaped, the number of the ventilation holes is multiple, and the multiple ventilation holes are arranged at intervals along the extension direction of the heating element.

12. The heating component according to claim 11, characterized in that: The heating element is bent multiple times in the atomization area to form a plurality of mutually parallel extensions, the plurality of ventilation holes are arranged in a plurality of rows, and the plurality of rows of ventilation holes and the plurality of extensions are alternately arranged.

13. The heating component according to claim 9, characterized in that: The heating element comprises a plurality of strip-shaped sub-heating elements, the plurality of sub-heating elements are spaced apart and arranged in parallel, and the ventilation hole is arranged between two adjacent sub-heating elements.

14. The heating component according to claim 9, characterized in that: The projection of the first substrate on the second substrate completely covers the heating element.

15. The heating component according to claim 1, characterized in that: The first substrate is provided with a through hole in the atomization area corresponding to the second substrate, and / or the edge of the first substrate is provided with a liquid inlet; the through hole and / or the liquid inlet serve as the ventilation structure.

16. The heating component according to claim 15, characterized in that: The heating component further comprises a fixing member having a lower liquid hole; at least a portion 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.

17. The heating component according to claim 16, characterized in that: The fixing member has a sealing function.

18. An atomizer, characterized in that: include: A liquid storage chamber, used for storing a liquid aerosol generating matrix; A heating component, wherein the heating component is the heating component described in any one of claims 1 to 17; the heating component is fluidically connected to the liquid storage chamber.

19. The atomizer according to claim 18, characterized in that The heating component is the heating component according to any one of claims 9 to 14, and the ventilation hole is provided in a region of the second substrate that can atomize the aerosol generating matrix to generate an aerosol.

20. An electronic atomization device, characterized in that: It comprises an atomizer and a host, wherein the atomizer is the atomizer according to claim 18 or claim 19, and the host is electrically connected to the heating component.

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