WO2022179643A2

WO2022179643A2 - Heating assembly, atomizer and electronic atomization device

Info

Publication number: WO2022179643A2
Application number: PCT/CN2022/092862
Authority: WO
Inventors: 吕铭; 赵月阳; 张彪; 龚博学; 朱明达
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-01
Also published as: WO2022179643A3

Abstract

Disclosed are a heating assembly, an atomizer and an electronic atomization device. The heating assembly comprises a first base body and a second base body, wherein the first base body comprises a first surface and a second surface arranged opposite each other, the first surface being a liquid suction surface; the first base body is provided with a plurality of first liquid guide holes for guiding an aerosol generating matrix from the first surface to the second surface; the second base body comprises a third surface and a fourth surface arranged opposite each other, the fourth surface being an atomization surface; the third surface and the second surface face each other and have a clearance formed therebetween; the second base body has an atomization region which has a plurality of second liquid guide holes for guiding the aerosol generating matrix from the third surface to the fourth surface; and the second base body is provided with at least one ventilation hole located in the atomization region, with the diameter of the ventilation hole being greater than that of the second liquid guide holes. By means of the above arrangement, the heating assembly has a ventilation function, thereby reducing the machining difficulty of a ventilation structure in the electronic atomization device.

Description

Heating components, atomizers and electronic atomization devices

technical field

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

Background technique

The main function of the electronic atomization device is realized by the atomization component, and the atomization component atomizes the internally stored aerosol-generating matrix to generate aerosol that is inhaled by the user. Based on the required functions, the atomizing assembly usually has a liquid storage chamber for storing the aerosol-generating substrate, a heating element for atomizing the aerosol-generating substrate, and a liquid for preventing the liquid in the liquid storage chamber from remaining outside the heating element. The fixed part and the air flow channel for the flow of external gas and aerosol, the user inhales the aerosol through the port of the air flow channel.

When the electronic atomization device is heated and atomized, as the aerosol generation 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 aerosol generation matrix flows to the heating element. The increase of resistance will easily lead to insufficient liquid supply and dry burning phenomenon. In order to solve this problem, a ventilation structure connecting the external gas and the liquid storage chamber is usually added on the atomizer seat. Driven by the pressure difference, the external gas supplements the liquid storage chamber with gas through the ventilation structure to balance the air pressure. But the current ventilation structure is difficult to process.

SUMMARY OF THE INVENTION

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

In order to solve the above-mentioned technical problems, the first technical solution provided by the present application is to provide a heating component, which is applied to an electronic atomization device and is used for atomizing aerosol to generate a matrix, including a first matrix and a second matrix; the The first substrate includes a first surface and a second surface that are oppositely arranged; the first surface is a liquid-absorbing surface; the first substrate has a plurality of first liquid-conducting holes for transferring the aerosol-generating substrate from the second surface. A surface leads to the second surface; the second substrate includes a third surface and a fourth surface arranged oppositely; the fourth surface is an atomized surface; the third surface is opposite to the second surface and forming a gap; the second substrate has an atomization area, and the atomization area has a plurality of second liquid-conducting holes for guiding the aerosol-generating substrate from the third surface to the fourth surface; Wherein, the second base body is provided with at least one ventilation hole, the ventilation hole is located in the atomization area, and the diameter of the ventilation hole is larger than that of the second liquid guide hole.

In one embodiment, the second liquid guide hole communicates with the first liquid guide hole through the gap.

In one embodiment, the capillary force of the second liquid guide hole is greater than the capillary force of the first liquid guide hole.

In one embodiment, the second substrate is a dense substrate, and the second liquid-conducting hole is a through hole penetrating the third surface and the fourth surface.

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.

In one embodiment, the diameter of the second liquid-conducting hole is 10 μm˜100 μm, and/or the ratio of the diameter of the ventilation hole to the diameter of the second liquid-conducting hole is 1:1˜4:1 .

In one embodiment, the first substrate is a dense substrate, and the first liquid-conducting hole is a through hole penetrating through the first surface and the second surface.

In one embodiment, the material of the first matrix is quartz, glass or dense ceramic; the material of the second matrix is quartz, glass or dense ceramic.

In one embodiment, the heating component further includes a heating element, the heating element is disposed in the atomization area, and the heating element is used for atomizing the aerosol-generating substrate to generate an aerosol.

In one embodiment, the ventilation holes and the heating element are arranged at intervals and the distance is less than 200 μm.

Or, the ventilation hole is tangent to the heating element;

Or, part of the ventilation holes pass through the heating element;

Or, the entire ventilation hole passes through the heating element.

In one embodiment, the heating element is strip-shaped, the number of the ventilation holes is plural, and the plurality of the ventilation holes are arranged at intervals along the extending direction of the heating element.

In one embodiment, the heating element is bent multiple times in the atomization area to form a plurality of mutually parallel extending portions, the plurality of ventilation holes are arranged in multiple rows, and the plurality of rows of the ventilation holes are A plurality of the extension parts are alternately arranged.

In one embodiment, the heating element includes a plurality of strip-shaped sub-heating elements, the plurality of sub-heating elements are spaced apart and arranged in parallel, and the ventilation holes are arranged between two adjacent sub-heating elements. between.

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

In one embodiment, the first base body has a ventilation structure, and the projection of the ventilation hole on the first base body is located in the ventilation structure.

In one embodiment, the first base body is provided with a through hole corresponding to the atomization area of the second base body, and/or the edge of the first base body has a liquid inlet; the through hole and/or the The liquid inlet serves as the ventilation structure.

In one embodiment, the heating element further includes a fixing member, and the fixing member has a lower liquid hole; at least a part of the edge of the first base body and the hole wall of the lower liquid hole are spaced apart to form the liquid inlet, The second matrix spans the entire lower liquid hole.

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

In order to solve the above technical problems, the second technical solution provided by the present application is to provide an atomizer, which includes a liquid storage chamber and a heating element; the liquid storage chamber is used to store a liquid aerosol generation substrate; the heating element is the heating element described in any one of the above; the heating element is in fluid communication with the liquid storage chamber.

In one embodiment, the heating element is the heating element described in any one of the above, and the ventilation hole is provided in an area of the second substrate where the aerosol-generating substrate can be atomized to generate an aerosol.

In order to solve the above technical problems, the third technical solution provided by the present application is to provide an electronic atomization device, including an atomizer and a host, the atomizer is the atomizer described in any of the above, and the The host is electrically connected with the heating component.

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. The heating component includes a first base body and a second base body; a surface and a second surface, the first surface is a liquid-absorbing surface; the first substrate has a plurality of first liquid-conducting holes for guiding the aerosol-generating substrate from the first surface to the second surface; the second substrate includes oppositely arranged The third surface and the fourth surface, 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 The aerosol-generating substrate is guided from the third surface to the fourth surface; wherein, the second substrate is provided with at least one ventilation hole, the ventilation hole is located in the atomization area, and the diameter of the ventilation hole is larger than that of the second liquid-conducting hole. Aperture. Through the above arrangement, the heating element has a ventilation function, which reduces the difficulty of processing the ventilation structure in the electronic atomization device.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application;

Fig. 2 is the structural representation of the atomizer of the electronic atomization device that Fig. 1 provides;

3 is a schematic structural diagram of an embodiment of a heating assembly of the atomizer provided in FIG. 2;

FIG. 4 is a schematic structural diagram of the heating assembly provided in FIG. 3 viewed from one side of the atomizing surface;

FIG. 5 is a schematic structural diagram of the heating assembly provided in FIG. 3 viewed from the liquid-absorbing surface side;

6 is a schematic cross-sectional structure diagram of the heating assembly provided in FIG. 3 along a first direction;

7 is a positional view of an embodiment of the ventilation holes and the heating element of the heating assembly provided in FIG. 3;

FIG. 8 is a positional view of an embodiment of the ventilation holes and the heating element of the heating assembly provided in FIG. 3;

FIG. 9 is a positional view of an embodiment of the ventilation holes and the heating element of the heating assembly provided in FIG. 3;

Figure 10 is a positional view of an embodiment of the ventilation holes and the heating element of the heating assembly provided in Figure 3;

Figure 11 is a graph of viscosity versus temperature for aerosol-generating substrates;

12 is a schematic structural diagram of another embodiment of the heating assembly of the atomizer provided in FIG. 2 viewed from the side of the atomizing surface;

13 is a schematic structural diagram of the second substrate viewed from the side of the atomizing surface in another embodiment of the heating assembly of the atomizer provided in FIG. 2;

FIG. 14 is a schematic structural diagram of another embodiment of the heating component of the atomizer provided in FIG. 2 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the following description, for purposes of illustration and not limitation, specific details such as specific system structures, interfaces, techniques, etc. are set forth in order to provide a thorough understanding of the present application.

The terms "first", "second" and "third" in this application are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second", "third" may expressly or implicitly include at least one of said features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, rear...) in the embodiments of the present application are only used to explain the relative positional relationship between components under a certain posture (as shown in the accompanying drawings). , motion situation, etc., if the specific posture changes, the directional indication also changes accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes Other steps or components inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are they separate or alternative embodiments that are 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.

The present application will be described in detail below with reference to the accompanying drawings and embodiments.

Please refer to FIG. 1 , which is a schematic structural diagram of an electronic atomization device provided by an embodiment of the present application.

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

Wherein, the atomizer 1 is used for storing the aerosol-generating substrate and atomizing the aerosol-generating substrate to form an aerosol that can be inhaled by a user. The atomizer 1 can be used in different fields, for example, medical treatment, beauty, leisure smoking and so on. In a specific embodiment, the atomizer 1 can be used in an electronic aerosolization device for atomizing aerosol-generating substrates and generating aerosols for smokers to inhale. example.

The specific structure and function of the atomizer 1 can be referred 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.

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 substrate 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, an airflow sensor, and the like.

The atomizer 1 and the host 2 may be integrally provided or detachably connected, and may be designed according to specific needs.

Please refer to FIG. 2 , which is a schematic structural diagram of the atomizer of the electronic atomization device provided in FIG. 1 .

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

The atomizing seat 12 includes an upper seat 121 and a lower seat 122, the upper seat 121 cooperates with the lower seat 122 to form an installation cavity; the atomization surface of the heating component 11 cooperates with the cavity wall of the installation cavity to form an atomization cavity 120. The upper seat 121 is provided with a lower liquid channel 1211 ; the lower liquid channel 1211 of the aerosol generating matrix channel in the liquid storage chamber 14 flows into the heating element 11 , that is, the heating element 11 is in fluid communication with the liquid storage chamber 14 . The lower seat 122 is provided with an air inlet channel 15 , the outside air enters the atomizing chamber 120 through the air inlet channel 15 , and the aerosol atomized by the heating component 11 flows to the mist outlet channel 13 , and the user inhales through the port of the mist outlet channel 13 . Aerosol.

Please refer to FIGS. 3 to 6 , FIG. 3 is a schematic structural diagram of an embodiment of the heating element of the atomizer provided in FIG. 2 , FIG. 4 is a schematic structural diagram of the heating element provided in FIG. 3 viewed from the side of the atomizing surface, and FIG. 5 FIG. 3 is a schematic structural diagram of the heating element provided in FIG. 3 viewed from the liquid absorbing surface side, and FIG. 6 is a schematic cross-sectional structure diagram of the heating element provided in FIG. 3 along the first direction.

The heating element 11 includes a first base body 111 and a second base body 112 .

The first base 111 includes a first surface 1111 and a second surface 1112 disposed opposite to each other, and the first surface 1111 is a liquid absorbing surface; The aerosol-generating substrate is guided from the first surface 1111 to the second surface 1112 , ie, the first liquid guide holes 1113 are used to guide the aerosol-generating substrate from the suction surface to the second surface 1112 .

The second base 112 includes a third surface 1121 and a fourth surface 1122 that are oppositely disposed, and the fourth surface 1122 is an atomized surface. The second substrate 112 has an atomization area A and a non-atomization area B (as shown in FIG. 4 ). The atomization area A has a plurality of second liquid guiding holes 1123, and the second liquid guiding holes 1123 are used to generate the aerosol into the matrix Leading from the third surface 1121 to the fourth surface 1122, ie, the second liquid guide holes 1123 are used to guide the aerosol-generating substrate from the third surface 1121 to the atomizing surface.

The second surface 1112 of the first base body 111 is opposite to the third surface 1121 of the second base body 112 and forms a gap 113 (as shown in FIG. 6 ). In this embodiment, the first base body 111 and the second base body 112 are arranged in parallel and spaced apart. It can be understood that the aerosol-generating substrate in the liquid storage chamber 14 flows to the first surface 1111 of the first substrate 111 through the lower liquid channel 1211 , and is guided to the first surface 1111 of the first substrate 111 by the capillary force of the first liquid guide hole 1113 . The two surfaces 1112 enter the gap 113, and are guided from the third surface 1121 of the second substrate 112 to the fourth surface 1122 through the capillary force of the second liquid guide hole 1123; / or flow from the suction surface to the atomization surface under the action of capillary force. The aerosol-generating substrate is heated and atomized in the atomization zone A to generate an aerosol. The capillary force of the second liquid guide hole 1123 is greater than the capillary force of the first liquid guide hole 1113, so that the aerosol generating substrate can flow from the gap 113 to the atomizing surface. In this example, the viscosity of the aerosol-generating substrate was 20-300 cps.

In this embodiment, the second substrate 112 is provided with at least one ventilation hole 1124 , the ventilation hole 1124 is located in the atomization area A, and the diameter of the ventilation hole 1124 is larger than that of the second liquid guide hole 1123 . By arranging a ventilation hole 1124 on the second base 112 of the heating element 11, one end of the ventilation hole 1124 is communicated with the liquid storage chamber 14, and the other end of the ventilation hole 1124 is communicated with the atomization chamber 120 or the outside air, and through ventilation The hole 1124 realizes the ventilation of the liquid storage chamber 14, maintains the balanced air pressure in the liquid storage chamber 14, and further ensures that the liquid is discharged smoothly in the liquid storage chamber 14, so that the heating element 11 is supplied with sufficient liquid. That is to say, in the heating assembly 11 provided in the embodiment of the present application, the ventilation holes 1124 are provided on the second base body 112 , so that the heating assembly 11 has a ventilation function, and there is no need to provide a ventilation structure on other structures of the atomizer 1 . , the ventilation of the liquid storage chamber 14 can be realized; in addition, compared with the ventilation structure provided on other structures of the atomizer 1, the process of setting the ventilation holes 1124 on the second base 112 is much simpler, reducing the The processing difficulty of the ventilation structure in the electronic atomization device is solved.

Further, 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 will also be atomized. After the aerosol-generating substrate in the air hole 1124 is consumed, the air exchange hole 1124 communicates with the atomization chamber 120 to realize the air exchange of the liquid storage chamber 14 .

By arranging the first base body 111 on the side of the second base body 112 close to the liquid storage chamber 14 , a gap 113 is formed between the second surface 1112 of the first base body 111 and the third surface 1121 of the second base body 112 , which can be eliminated through the gap 113 During the atomization process, the air intake from the ventilation holes 1124 and the second liquid guide holes 1123 forms larger air bubbles on the third surface 1121 of the second substrate 112 to prevent the air bubbles from hindering the liquid supply, thereby avoiding dry burning. By setting the gap 113 , lateral fluid supplementation can be achieved, and even if the bubbles adhere to the liquid absorbing surface of the first base 111 and cover part of the first liquid guide hole 1113 , the liquid supply of the second base 112 will not be affected. In addition, by disposing the first base body 111 on the side of the second base body 112 close to the liquid storage cavity 14, the first base body 111 can be insulated to a certain extent, preventing the heat on the second base body 112 from being conducted to the liquid storage cavity 14, which is beneficial to Guaranteed consistency of taste.

Specifically, the first matrix 111 may be a porous matrix with disordered through-holes, such as porous ceramics, cotton, quartz sand cores, and foam-structured materials; the plurality of micropores in the first matrix 111 itself are the first liquid-conducting materials. Hole 1113. The first substrate 111 may also be a dense substrate with ordered through holes, such as quartz, glass, dense ceramics, etc. with ordered through holes; in one embodiment, the first liquid-conducting holes 1113 are formed through the first surface 1111 and through holes in the second surface 1112. When the material of the first substrate 111 is glass, it can be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

The second matrix 112 may be a porous matrix with disordered through holes, such as porous ceramics, cotton, quartz sand cores, and materials with foam structures; The second substrate 112 can also be a dense substrate with ordered through holes, such as quartz, glass, dense ceramics, etc. with ordered through holes; in one embodiment, the second liquid-conducting holes 1123 are through the third surface 1121 and through holes of the fourth surface 1122. When the material of the second substrate 112 is glass, it can be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass.

The materials of the first base body 111 and the second base body 112 may be the same or different. The first substrate 111 and the second substrate 112 can 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 Ceramic; for another example, the first matrix 111 is a dense matrix, and the second matrix 112 is a porous ceramic; in another example, the first matrix 111 is a dense matrix, and the second matrix 112 is a dense matrix.

The first base body 111 and the second base body 112 are both sheet-shaped. It can be understood that the sheet-shaped body is relative to the block-shaped body, and the ratio of the length to the thickness of the sheet-shaped body is larger than the ratio of the length to the thickness of the block-shaped body. . The first base body 111 and the second base body 112 can be flat, curved, cylindrical, etc., and can be designed according to specific needs.

The heating component 11 will be described in detail below by taking the first substrate 111 and the second substrate 112 as dense substrates, and the first substrate 111 and the second substrate 112 as a flat plate as an example (as shown in FIG. 3 ).

The thickness of the second base body 112 is 0.2 mm˜1 mm. When the thickness of the second base body 112 is greater than 1 mm, the liquid supply requirement cannot be met, resulting in a decrease in the amount of aerosol, and the resulting heat loss is large, and the cost of installing the second liquid guide holes 1123 is high; when the thickness of the second base body 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 base body 112 is 0.2 mm˜0.5 mm.

The diameter of the second liquid conducting hole 1123 is 10 μm˜100 μm. When the diameter of the second liquid-conducting hole 1123 is smaller than 10 μm, the resistance of the lowering liquid is relatively large, and it is difficult to meet the liquid supply demand, resulting in a decrease in the amount of aerosol generation or the risk of dry burning; when the diameter of the second liquid-conducting hole 1123 is larger than 100 μm, the gas The sol-generating matrix is likely to flow out from the second liquid-guiding hole 1123 to cause liquid leakage, resulting in a decrease in atomization efficiency. Optionally, the diameter of the second liquid conducting hole 1123 is 15 μm˜60 μm.

The shape of the ventilation hole 1124 is not limited, for example, it may be a circular hole. The diameter of the ventilation hole 1124 is 50 μm˜200 μm, and the ventilation pressure of the ventilation hole 1124 is -600pa to -1200pa. If the pore size of the ventilation holes 1124 is larger than 200 μm, there may be a risk of liquid leakage; if the pore size of the ventilation holes 1124 is smaller than 50 μm, it cannot achieve a good ventilation effect, thereby affecting the liquid flow rate and atomization efficiency. It can be understood that the diameter 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 between the two sides of the heating element 11 reaches the preset ventilation pressure, the aerosol in the ventilation hole 1124 The production substrate is pushed out by the gas to ventilate the reservoir chamber 14 .

It can be understood that, the thickness of the second substrate 112, the diameter of the second liquid guide hole 1123, and the diameter of the ventilation hole 1124 can be selected according to actual needs. Wherein, 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.

The thickness of the first base body 111 and the diameter of the first liquid conducting hole 1113 are specifically designed as required. Optionally, the diameter of the first liquid guide hole 1113 is larger than that 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 generates a matrix. It can flow from the gap 113 to the atomizing surface of the second base 112 (ie, the fourth surface 1122 of the second base 112 ). Since the first liquid guide hole 1113 also has capillary force, when the port of the mist outlet channel 13 is used downward, it can prevent the liquid from flowing back and prevent the liquid supply from being insufficient.

Referring to FIG. 4 , the heating assembly 11 further includes a heating element 114 , a positive electrode 116 and a negative electrode 117 , and both 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 disposed in the atomization area A of the second substrate 112, and generates aerosol by atomizing the aerosol-generating substrate. Both the positive electrode 116 and the negative electrode 117 are disposed on the fourth surface 1122 of the second base body 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., and can heat the atomized aerosol to generate a substrate. The heating element 114 can be disposed on the fourth surface 1122 of the second base 112 (ie, the atomization surface of the second base 112 ), or can be embedded in the second base 112 , which can be specifically designed as required. In other embodiments, the second substrate 112 has a conductive function and can generate heat by itself, for example, a self-heating conductive ceramic or a glass with a conductive function, and no additional heating element 114 is required in this case. That is, the heating element 114 is an optional structure.

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 better atomization Effect.

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 substrate in the second liquid conducting hole 1123 or the ventilation hole 1124 . The area in the atomization area A that is closer to the heating element 114 has a high temperature and is sufficient to atomize the aerosol-generating matrix to generate aerosol, which is defined as a high-temperature area; the area in the atomization area A that is far away from the heating element 114, The heat that may be conducted is not sufficient to atomize the aerosol-generating matrix into aerosols, which are defined as low temperature regions. Therefore, in order to atomize the aerosol-generating substrate in the ventilation holes 1124 to realize ventilation, the ventilation holes 1124 are provided in the high temperature region of the second base 112 where the aerosol-generating substrate can be atomized to generate aerosol.

Optionally, the ventilation holes 1124 and the heating element 114 are arranged at intervals (as shown in FIG. 4 ) and the distance is less than 200 μm, which is convenient for the aerosol-generating matrix in the ventilation holes 1124 to be atomized, and the aerosols in the ventilation holes 1124 are generated. After the substrate is consumed, the ventilation hole 1124 communicates with the atomization chamber 120 to realize the ventilation of the liquid storage chamber 14 .

Optionally, the ventilation hole 1124 is tangent to the heating element 114 (as shown in FIG. 7 , which is a position diagram of the ventilation hole and the heating element of an embodiment of the heating assembly provided in FIG. 3 ).

Optionally, part of the ventilation holes 1124 pass through the heating element 114 (as shown in FIG. 8 , which is a positional view of the ventilation holes and the heating element in an embodiment of the heating assembly provided in FIG. 3 ).

Optionally, the entire ventilation hole 1124 passes through the heating element 114 (as shown in FIG. 9 , which is a position diagram of an embodiment of the ventilation hole and the heating element of the heating assembly provided in FIG. 3 ).

Optionally, the ventilation holes 1124 may be partially located in the atomization area A with the second liquid guide holes 1123 , and partially located in the non-atomization area B without the second liquid guide holes 1123 . Among them, the non-atomization area B is a blank area (the specific definition of the blank area will be introduced in detail in the following content). It can be understood that when there are multiple ventilation holes 1124, a part of the multiple ventilation holes 1124 is located in the atomization area A, and the other part of the multiple ventilation holes 1124 is located in the non-atomization area B; when the ventilation holes 1124 are located in the non-atomization area B; When the number of 1124 is one, a part of the ventilation holes 1124 is located in the atomization area A, and the other part of the ventilation holes 1124 is located in the atomization area B (as shown in Figure 10, which is the ventilation of the heating element provided in Figure 3 ). Location diagram of an embodiment of the hole and the heating element).

It can be understood that during the atomization process of the heating element 11, the temperature of the atomization area A is higher than the temperature of the non-atomization area B, and the closer to the heating element 114 in the atomization area A, the higher the temperature; the higher the temperature, the more aerosol is generated. The lower the viscosity of the matrix (as shown in Figure 11, which is a graph of the viscosity of the aerosol-generating matrix versus temperature). Therefore, the closer the ventilation hole 1124 is to the heating element 114 , the better the fluidity of the aerosol-generating matrix in the ventilation hole 1124 is, which is more favorable for the ventilation hole 1124 to ventilate the liquid storage chamber 14 during the atomization process. That is to say, the ventilation holes 1124 and the heating element 114 are spaced apart and the gap is less than 200 μm; or, the ventilation holes 1124 are tangent to the heating element 114; or, part of the ventilation holes 1124 pass through the heating element 114; The air holes 1124 pass through the heating element 114, so that a better ventilation effect can be achieved.

In this embodiment, the heating element 114 is strip-shaped, the number of ventilation holes 1124 is multiple, and the multiple ventilation holes 1124 are arranged at intervals along the extending direction of the heating element 114 . Specifically, the heating element 114 is bent multiple times in the atomization area A to form a plurality of mutually parallel extending portions 1141 , and the heating element 114 further includes a connecting portion 1142 connecting two adjacent extending portions 1141 . The plurality of ventilation holes 1124 are arranged in multiple rows, and the multiple rows of ventilation holes 1124 and the plurality of extending portions 1141 are alternately arranged (as shown in FIG. 4 ).

Exemplarily, the plurality of ventilation holes 1124 are arranged in four rows, and each row is provided with three ventilation holes 1124; the heating element 114 is bent in the atomization area A to form three mutually parallel extending parts 1141, and four rows of ventilation holes are formed. The 1124 and the three extending portions 1141 are alternately arranged, and the ventilation holes 1124 in each row are arranged at intervals from the adjacent connecting portions 1142 .

Please refer to FIG. 12 . FIG. 12 is a schematic structural diagram of another embodiment of the heating element of the atomizer provided in FIG. 2 viewed from the side of the atomizing surface. 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 two The ends are respectively electrically connected to the positive electrode 116 and the negative electrode 117; the ventilation holes 1124 are provided between the 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 easier to be atomized, which is conducive to the realization of ventilation function. It should be noted that, compared with the heating element shown in FIG. 3 , the heating element assembly shown in FIG. 12 only has a different shape of the heating element 114 , and other structures are the same.

Please refer to FIG. 13 . FIG. 13 is a schematic structural diagram of the second substrate viewed from the side of the atomizing surface in another embodiment of the heating element of the atomizer provided in FIG. 2 . In yet another embodiment, the heating element 114 includes a plurality of first sub-heating parts 1141a extending in the first direction and a plurality of second sub-heating parts 1141b extending in the second direction, and the second sub-heating parts 1141b will be adjacent to each other. The two first sub-heating parts 1141a are connected. Both 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 larger than that of the heating element 114 . The ventilation holes 1124 are arranged between the adjacent first sub-heating parts 1141a. Since both sides of the ventilation holes 1124 can receive the heat of the first sub-heating parts 1141a, during the working process of the electronic atomization device, the ventilation holes 1124 can be replaced. The aerosol-generating substrate in the air hole 1124 is relatively easy to be atomized, which is beneficial to realize the ventilation function. It should be noted that, compared with the heating element shown in FIG. 3 , the heating element 114 has a different shape, the heating element 114 has a different positional relationship with the positive electrode 116 and the negative electrode 117 , and other structures are the same. .

Continuing to refer to FIGS. 5 and 6 , the first base body 111 has a ventilation structure 1114 . The projection of the ventilation hole 1124 on the first base body 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 communicates the atomization cavity 120 with the liquid storage cavity 14. The ventilation of the liquid storage chamber 14 is realized. The ventilation structure 1114 makes it easier for the gas to enter the liquid storage chamber 14 through the ventilation holes 1124 .

Specifically, a through hole 1114 a is provided in the atomization area A of the first base body 111 corresponding to the second base body 112 , and the through hole 1114 a exposes the ventilation hole 1124 to the lower liquid channel 1211 ; and/or, the edge of the first base body 111 A liquid inlet 1115 is provided, 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 setting position and setting method of the ventilation structure 1114 can be specifically designed according to requirements, and the ventilation holes 1124 provided on the second base body 112 can be exposed to the lower liquid channel 1211 .

Exemplarily, referring to FIGS. 3 to 5 , the second base body 112 is provided with twelve ventilation holes 1124 , and three ventilation holes 1124 are arranged in a row. The heating element 114 includes three mutually parallel extending portions 1141 and two connecting portions 1142 connecting two adjacent extending portions 1141 . Four rows of ventilation holes 1124 and three extending portions 1141 are alternately arranged. Two opposite edges of the first base body 111 are provided with liquid inlets 1115 , respectively exposing the ventilation holes 1124 on both sides of the heating element 114 . Meanwhile, two through holes 1114a are provided in the middle position of the first base body 111, respectively exposing the ventilation holes 1124 in the middle two rows.

It can be understood that the gap 113 communicates with the liquid storage cavity 14 through the liquid inlet 1115 and the first liquid guide hole 1113 .

Continuing to refer to FIG. 6 , the heating assembly 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 silica gel or fluororubber.

Optionally, at least part of the edge of the first base body 111 is spaced from the hole wall of the lower liquid hole 1151 to form a liquid inlet 1115 , and the second base body 112 spans the entire lower liquid hole 1151 ; for example, two opposite lengths of the first base body 111 The sides are respectively spaced from the hole wall of the lower liquid hole 1151 to form two symmetrically arranged liquid inlets 1115 (as shown in FIG. 5 ).

Optionally, the edge of the first base body 111 is provided with a through hole (not shown) to form a liquid inlet 1115 , and the second base body 112 spans the entire lower liquid hole 1151 .

The projection of the first base body 111 on the atomizing surface completely covers the heating element 114 , and the liquid inlet 1115 and the heating element 114 are arranged in a staggered position. By arranging the liquid inlet 1115 on the first base 111, not only can the gap 113 be filled with liquid through the liquid inlet 1115, but also air bubbles can be eliminated through the liquid inlet 1115, so as to avoid the influence of the air bubbles entering the liquid storage chamber 14 on the liquid supply, and further Avoid dry burning.

The lower liquid hole 1151 is in fluid communication with the liquid storage chamber 14 through the lower liquid channel 1211 . The first base body 111 and/or the second base body 112 are embedded in the lower liquid hole 1151 , that is, the fixing member 115 is used to fix the periphery of the first base body 111 and/or the second base body 112 . When the fixing member 115 covers the periphery of the second base body 112 , the fixing member 115 does not block the heating element 114 , and the lower liquid hole 1151 can completely expose the heating element 114 . Optionally, the hole wall of the lower liquid hole 1151 has an annular installation groove (not shown), and the edges of the first base body 111 and/or the second base body 112 are embedded in the annular installation groove, and the first base body 111 and the second base body 112 are embedded in the annular installation groove. The two base bodies 112 form a gap 113 . It can be understood that the first base body 111 and the second base body 112 may be arranged parallel to each other to form a gap 113 ; it may also be a non-parallel setting between the first base body 111 and the second base body 112 to form a gap 113 , specifically, the first base body 111 An angle is formed with the second base body 112 .

Continuing to refer to FIG. 4 , the second substrate 112 further has a non-atomized area B, and the non-atomized area B is a blank area of the second substrate 112 . The positive electrode 116 and the negative electrode 117 are provided in the non-atomization area B. Wherein, the size of the area around the atomization area A of the second substrate 112 in this application is larger than the diameter of the second liquid guide hole 1123, so it can be called a blank area; that is, the blank area in this application can be formed The second liquid-guiding hole 1123 is not formed in the area where the second liquid-guiding hole 1123 is formed, rather than the area around the atomization area A where the second liquid-guiding hole 1123 cannot be formed. In one embodiment, the distance between the second liquid guide hole 1123 closest to the edge of the second base 112 and the edge of the second base 112 is larger than the diameter of the second liquid guide hole 1123, and it is considered that the atomization area A is in the atomization area A. There is a blank area on the circumference.

That is to say, the second substrate 112 is only provided with a plurality of second liquid guide holes 1123 in the atomization area A, and there are no second liquid guide holes 1123 in the non-atomization area B, which reduces the number of the second liquid guide holes 1123 on the second substrate 112 The number of the second liquid guide holes 1123 increases the strength of the second base body 112 and reduces the production cost of disposing the second liquid guide holes 1123 on the second base body 112 . By setting 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 atomization The plurality of second liquid-conducting holes 1123 in zone A cover the heating element 114 and the surrounding area of the heating element 114 , that is, basically cover the area that reaches the temperature of the atomized aerosol generation substrate, making full use of thermal efficiency. The positive electrode 116 and the negative electrode 117 are arranged in the non-atomization area B to ensure the stability of the electrical connection between the positive electrode 116 and the negative electrode 117 .

Whether the entire surface of the first base body 111 is provided with the first liquid conducting holes 1113 or only a part of the surface is provided with the first liquid conducting holes 1113 can be designed as required, which is not limited in this application.

Please refer to FIG. 14 . FIG. 14 is a schematic structural diagram of another embodiment of the heating element of the atomizer provided in FIG. 2 .

The difference between the heating component shown in FIG. 14 and the heating component shown in FIG. 3 is that: the first base body 111 and the second base body 112 in the heating component 11 shown in FIG. In the heating element 11, an included angle β is formed between the first base body 111 and the second base body 112 to form a gap 113, and the included angle β is an acute angle, for example, 0°<β≤30°, that is, the height of the gap 113 is inconsistent; In addition, the structure of the heating element 11 shown in FIG. 14 is the same as that of the heating element 11 shown in FIG. 3 , and will not be described again.

Specifically, an included angle may be formed between the first base body 111 and the second base body 112 through the fixing member 115 , or an included angle may be formed through other structural members, which are specifically designed as required.

The above are only the embodiments of the present application, and are not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present application.

Claims

A heating component, applied to an electronic atomization device, used for atomizing aerosol generation substrate, comprising:

The first substrate includes a first surface and a second surface arranged oppositely; the first surface is a liquid absorbing surface; the first substrate has a plurality of first liquid conducting holes for transferring the aerosol generating substrate from the the first surface leads to the second surface;

The second substrate includes a third surface and a fourth surface arranged oppositely; the fourth surface is an atomization surface; the third surface is opposite to the second surface and forms a gap; the second substrate has atomization a zone, the atomization zone has a plurality of second liquid conducting holes for guiding the aerosol-generating substrate from the third surface to the fourth surface;

Wherein, the second base body is provided with at least one ventilation hole, the ventilation hole is located in the atomization area, and the diameter of the ventilation hole is larger than that of the second liquid guide hole.
The heat generating component according to claim 1, wherein the second liquid guiding hole communicates with the first liquid guiding hole through the gap.
The heating element according to claim 2, wherein the capillary force of the second liquid-conducting hole is greater than the capillary force of the first liquid-conducting hole.
The heating element according to claim 1, wherein the second substrate is a dense substrate, and the second liquid conducting hole is a through hole penetrating through the third surface and the fourth surface.
The heating element according to claim 4, wherein the thickness of the second substrate is 0.2 mm˜1 mm, and/or the diameter of the ventilation holes is 100 μm˜200 μm.
The heating component according to claim 4, wherein the diameter of the second liquid-conducting hole is 10 μm˜100 μm, and/or the ratio of the diameter of the ventilation hole to the diameter of the second liquid-conducting hole is 1 :1～4:1.
The heating element according to claim 4, wherein the first base body is a dense base body, and the first liquid conducting hole is a through hole passing through the first surface and the second surface.
The heating element according to claim 7, wherein the material of the first base body is quartz, glass or dense ceramics; the material of the second base body is quartz, glass or dense ceramics.
The heating element according to claim 1, wherein the heating element further comprises a heating element, the heating element is arranged in the atomizing area, and the heating element is used for atomizing the aerosol generating substrate to generate an aerosol .
The heating assembly according to claim 9, wherein the ventilation holes and the heating element are arranged at intervals and the distance is less than 200 μm;

Or, the ventilation hole is tangent to the heating element;

Or, part of the ventilation holes pass through the heating element;

Or, the entire ventilation hole passes through the heating element.
The heating assembly according to claim 9, wherein the heating element is in the shape of a strip, the number of the ventilation holes is plural, and the plurality of ventilation holes are arranged at intervals along the extending direction of the heating element .
The heating assembly according to claim 11, wherein the heating element is bent multiple times in the atomization area to form a plurality of mutually parallel extension parts, and the plurality of the ventilation holes are arranged in a plurality of rows, and the plurality of rows The ventilation holes and the plurality of extension parts are alternately arranged.
The heating assembly according to claim 9, wherein the heating element comprises a plurality of strip-shaped sub-heating elements, the plurality of the sub-heating elements are spaced apart and arranged in parallel, and the ventilation holes are arranged in two adjacent ones of the heating elements. between the sub heating elements.
The heating assembly according to claim 9, wherein the projection of the first substrate on the second substrate completely covers the heating element.
The heating assembly according to claim 1, wherein the first base body has a ventilation structure, and the projection of the ventilation hole on the first base body is located in the ventilation structure.
The heating component according to claim 15, wherein the first base body is provided with a through hole corresponding to the atomization area of the second base body, and/or the edge of the first base body has a liquid inlet; the The through hole and/or the liquid inlet serve as the ventilation structure.
The heating element according to claim 16, wherein the heating element further comprises a fixing member, the fixing member has a lower liquid hole; and at least part of the edge of the first base body is spaced apart from the hole wall of the lower liquid hole. The liquid inlet and the second base span the entire lower liquid hole.
The heating element according to claim 17, wherein the fixing member has a sealing function.
An atomizer comprising:

a liquid storage chamber for storing the liquid aerosol-generating substrate;

A heating component, the heating component is the heating component according to any one of claims 1-18; the heating component is in fluid communication with the liquid storage chamber.
The atomizer according to claim 19, wherein the heating component is the heating component according to any one of claims 9-14, and the ventilation holes are provided on the second base to allow the aerosol Generates the area where the matrix is nebulized to generate the aerosol.
An electronic atomization device, comprising an atomizer and a main unit, the atomizer is the atomizer of claim 19 or claim 20, and the main unit is electrically connected to the heating component.