WO2022179232A2

WO2022179232A2 - Heating body, atomization assembly and electronic atomization device

Info

Publication number: WO2022179232A2
Application number: PCT/CN2021/135135
Authority: WO
Inventors: 吕铭; 赵月阳; 李光辉
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-09-01
Also published as: WO2022179232A3

Abstract

Provided are a heating body, an atomization assembly and an electronic atomization device. The heating body comprises a compact base body, which is provided with an atomization region and a non-atomization region; the atomization region has a plurality of liquid guide holes, which penetrate the compact base body and are used for delivering an aerosol generating matrix from one side of the compact base body to the other side; and the non-atomization region is provided with at least one ventilation hole; and the diameter of the ventilation hole is greater than that of the liquid guide holes. By means of the above arrangement, the heating body has a ventilation function, thereby reducing the machining difficulty of a ventilation structure in the electronic atomization device.

Description

Heating body, atomizing component and electronic atomizing device

technical field

The present invention relates to the technical field of atomization components, in particular to a heating body, an atomization component 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 seal 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

In view of this, the present application provides a heating element, an atomizing component and an electronic atomizing device, so as to 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 body, including a dense substrate, and an atomization area and a non-atomization area are arranged on the dense substrate; the atomization area has multiple a liquid-conducting hole penetrating through the dense substrate for transferring the aerosol-generating substrate from one side of the dense substrate to the other side; the non-atomization area is provided with at least one ventilation hole; the The diameter of the ventilation hole is larger than the diameter of the liquid guide hole.

Wherein, the heating element further includes a heating element, which is arranged in the atomization area of the dense substrate, and is used for heating and atomizing the aerosol-generating substrate.

Wherein, it also includes an electrode, the electrode is arranged in the non-atomization area of the dense substrate, and the heating element is electrically connected to the electrode; the ventilation hole is arranged on the side of the electrode away from the atomization area.

Wherein, the electrode includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on opposite sides of the atomization area; the dense substrate is provided with only one ventilation hole, and the ventilation hole is It is located on the side of the positive electrode or the negative electrode away from the atomization area.

Wherein, one of the positive electrode and the negative electrode is arranged at the edge of the dense substrate, and the other is arranged at an interval from the edge of the dense substrate; the ventilation hole is located at the other of the positive electrode and the negative electrode The side away from the atomization zone.

Wherein, the electrode includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on opposite sides of the atomization area; the dense substrate is provided with two ventilating holes symmetrically in the center, and one of the The ventilation hole is located on the side of the positive electrode away from the atomization area, and the other ventilation hole is located at the side of the negative electrode away from the atomization area.

Wherein, the non-atomization area is arranged around the atomization area and is a blank area.

Wherein, the thickness of the dense substrate is 0.2 mm to 1 mm, the diameter of the ventilation holes is 100 μm to 200 μm, and the ventilation pressure of the ventilation holes is -600 Pa to -1200 Pa.

Wherein, the diameter of the liquid conducting hole is 10 μm˜100 μm.

Wherein, the diameter of the liquid conducting hole is 15 μm˜60 μm.

Wherein, the ratio of the pore diameter of the ventilation hole to the pore diameter of the liquid guide hole is 1:1 to 4:1.

Wherein, the material of the dense matrix is glass, dense ceramic or silicon.

Wherein, the heating element is a heating wire, a heating net or a heating film; the heating element is arranged on the surface of the dense matrix or embedded in the interior of the dense matrix.

In order to solve the above-mentioned technical problems, the second technical solution provided by the present application is to provide an atomization assembly, which includes a liquid storage chamber and a heating body; the liquid storage chamber is used to store the aerosol generating matrix; The matrix is generated by atomizing the aerosol from the liquid storage cavity; the heating element is the heating element described in any one of the above; one end of the ventilation hole is communicated with the liquid storage cavity, and the other end is connected with the outside atmosphere Connected.

Wherein, it also includes a seal and a resisting part; the seal is located on the side of the resisting part away from the liquid storage chamber; the seal is at least partially located between the heating body and the resisting part , the sealing member is used to seal the structural gap between the heating element and the liquid storage cavity; the sealing member is provided with a lower liquid hole, so that the atomization area of the heating element and the liquid storage cavity are formed. The chambers are in fluid communication.

Wherein, the sealing member and the ventilation hole are arranged in a staggered position, so that the ventilation hole communicates with the liquid storage chamber; or, the sealing member is provided with a first communication hole at a position corresponding to the ventilation hole a hole, so that the ventilation hole communicates with the liquid storage chamber.

Wherein, the heating element is the heating element described above; the sealing member is provided with only one of the first through holes corresponding to one of the two ventilation holes.

Wherein, the heating element is the heating element described above; the sealing member is provided with two first through holes, and the two first through holes are arranged symmetrically in the center; the two first through holes One of them is arranged corresponding to the ventilation hole.

Wherein, the sealing member is provided with a first through hole at a position corresponding to the ventilation hole; the abutting portion is staggered from the first through hole, or the abutting portion has a through hole with the first through hole. The second through hole communicated with the hole, so that the ventilation hole communicates with the liquid storage chamber.

Wherein, a coating layer is provided on the hole wall of the first through hole, and the material of the coating layer has stronger wettability than the material of the sealing member, or the material of the coating layer and the aerosol-generating matrix have a better wettability. The contact angle is smaller than the contact angle of the material of the seal with the aerosol-generating substrate.

Wherein, the resisting portion has a second through hole communicating with the first through hole; the resisting portion corresponding to the first through hole is provided with a hollow protrusion communicating with the second through hole , the hollow protrusion is arranged in the first through hole; the material of the abutting part has stronger wettability than the material of the seal, or the material of the abutting part and the aerosol generating matrix The contact angle is smaller than the contact angle between the material of the seal and the aerosol-generating substrate.

Wherein, it also includes an atomization seat, the atomization seat has a receiving cavity, and the heating body is arranged in the receiving cavity;

The abutting portion is located on the atomizing seat and/or the cavity wall of the liquid storage cavity.

Wherein, the viscosity of the aerosol-generating substrate is 60cp-500cp.

In order to solve the above technical problems, the third technical solution provided by the present application is to provide an electronic atomization device, which includes an atomization assembly and a battery assembly, and the atomization assembly is the atomization assembly described in any one of the above, The battery assembly provides energy for the operation of the atomizing assembly.

Beneficial effects of the present application: different from the prior art, the heating element in the present application includes a dense matrix, and the dense matrix is provided with an atomization area and a non-atomization area; It is used for transferring the aerosol generating substrate from one side of the dense substrate to the other side; the non-atomization area is provided with at least one ventilation hole; the diameter of the ventilation hole is larger than that of the liquid-conducting hole. 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.

Fig. 1 is the structural representation of the electronic atomization device provided by the application;

Fig. 2 is the structural representation of the atomization assembly provided by the application;

Fig. 3 is a partial structural diagram of another embodiment of the atomizing assembly provided by the present application;

Fig. 4 is the three-dimensional structure schematic diagram of the heating element provided by this application;

Fig. 5 is the sectional schematic diagram of the heating element provided by Fig. 4;

FIG. 6 is a schematic diagram of the assembly structure of the heating element, the seal and the liquid storage chamber provided in FIG. 4;

FIG. 7 is a schematic diagram of another assembly structure of the heating element, the seal and the liquid storage chamber provided in FIG. 4;

8 is a schematic cross-sectional view of another embodiment of the heating element provided by the present application;

FIG. 9 is a schematic diagram of the assembly structure of the heating element, the seal and the liquid storage chamber provided in FIG. 8;

10 is a schematic three-dimensional structure diagram of another embodiment of the heating element provided by the present application;

FIG. 11 is a schematic diagram of the assembly structure of the heating element, the seal, and the liquid storage chamber provided in FIG. 10;

Fig. 12 is a schematic diagram of the assembly structure of the heating element, the sealing member, and the abutting portion provided in Fig. 10;

FIG. 13 is a schematic diagram of the assembly structure of another embodiment of the heating element and the sealing member provided in FIG. 10 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all 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.

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, a feature defined as "first", "second", "third" may expressly or implicitly include at least one of that feature. 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. Furthermore, the terms "comprising" and "having" and any variations thereof 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 For other steps or units 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 phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of 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.

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

Electronic atomization devices can be used for atomization of liquid substrates. The electronic atomization device includes an atomization assembly 1 and a power supply assembly 2 that are connected to each other. The atomizing assembly 1 and the power supply assembly 2 may be integrally provided, or may be detachably connected, and are designed according to specific needs.

The atomization assembly 1 is used to store the liquid aerosol generation substrate and atomize the aerosol generation substrate to form an aerosol that can be inhaled by the user. The component 1 can be used in different fields, for example, medical treatment, beauty, leisure smoking and so on. The power supply assembly 2 includes a battery (not shown in the figure), an airflow sensor (not shown in the figure), a controller (not shown in the figure) and other components; the battery is used to supply power to the atomizing assembly 1, so that the atomizing assembly 1 can atomize aerosol The matrix is generated to form an aerosol; the air flow sensor is used to detect the air flow change in the electronic atomization device, and the controller controls whether the atomization assembly 1 works according to the air flow change detected by the air flow sensor and a preset program.

Please refer to FIG. 2 , which is a schematic structural diagram of the atomizing assembly provided by the present application.

The atomizing assembly 1 includes a casing 10 , an atomizing seat 11 and a heating body 12 . The housing 10 has a liquid storage chamber 13 and an air outlet channel 14 . The liquid storage chamber 13 is used for storing the liquid aerosol generating substrate, and the liquid storage chamber 13 is arranged around the air outlet channel 14 . Optionally, the viscosity of the aerosol-generating substrate in the liquid storage chamber 13 is 60cp-500cp. The end of the housing 10 also has a suction port 15 which communicates with the air outlet channel 14 . The housing 10 has an accommodating cavity 16 on the side of the liquid storage cavity 13 away from the suction port 15 , and the atomizing seat 11 is arranged in the accommodating cavity 16 . The atomizing seat 11 includes an atomizing top seat 111 and an atomizing base 112 . The atomizing top seat 111 and the atomizing base 112 cooperate to form a accommodating cavity 113 ; that is, the atomizing seat 11 has a accommodating cavity 113 . The heating element 12 is arranged in the accommodating cavity 113 , and is arranged in the accommodating cavity 16 together with the atomizing seat 11 . The heating body 12 is in fluid communication with the liquid storage chamber 13, and the heating body 12 is used to absorb and heat the aerosol-generating substrate in the atomized liquid storage chamber 13 to generate aerosol.

In this embodiment, the heating element 12 includes a liquid absorbing surface and an atomizing surface. The surface of the heating element 12 in fluid communication with the liquid storage chamber 13 is the liquid suction surface. The surface of the heating body 12 away from the liquid storage cavity 13 is an atomizing surface, an atomizing cavity 115 is formed between the atomizing surface of the heating body 12 and the inner wall surface of the receiving cavity 113 , and the atomizing cavity 115 communicates with the air outlet channel 14 . An air inlet 116 is provided on the atomizing base 112 to communicate the outside with the atomizing cavity 115 . The outside air enters the atomizing chamber 115 through the air inlet 116 , carries the aerosol atomized by the heating element 12 into the air outlet channel 14 , and finally reaches the suction port 15 to be sucked by the user.

The atomizing assembly 1 also includes a resisting portion 110 and a sealing member 18 . The sealing member 18 is located on the side of the abutting portion 110 away from the liquid storage chamber 13 . The sealing member 18 is at least partially located between the heating body 12 and the abutting portion 110 . The sealing member 18 is used to seal the structural gap between the heating body 12 and the liquid storage chamber 13 to prevent the aerosol generation matrix or condensate from flowing from the heating body 12 . Edge overflow. That is, the sealing member 18 is used to seal the periphery of the heating element 12 . Optionally, the material of the sealing member 18 is silicone or fluororubber. It can be understood that the sealing member 18 may be entirely located on the surface of the heating body 12 close to the abutting portion 110; or, the sealing member 18 may be partially located on the surface of the heating body 12 adjacent to the abutting portion 110, and partially on the side surface of the heating body 12; or, the sealing member Part 18 is located on the surface of the heating body 12 close to the abutting part 110 , part is located on the side of the heating body 12 , and part is located on the surface of the heating body 12 away from the abutting part 110 . The arrangement of the sealing member 18 can be designed according to specific needs.

In this embodiment, the atomizing seat 11 has a resisting portion 110 . Specifically, a receiving groove 1111 is provided on the atomizing top seat 111 , and the receiving groove 1111 cooperates with the atomizing base 112 to form a receiving cavity 113 . The heating element 12 is disposed in the receiving groove 1111 , the bottom wall of the receiving groove 1111 forms the abutting portion 110 , and the sealing member 18 is at least partially disposed between the bottom wall of the receiving groove 1111 and the liquid absorbing surface of the heating element 12 . The heating element 12 and the sealing member 18 are arranged in the receiving groove 1111 .

Two lower liquid channels 114 are arranged on the atomizing top seat 111 , and the two lower liquid channels 114 are arranged on both sides of the air outlet channel 14 . One end of the lower liquid channel 114 is communicated with the liquid storage chamber 13 , and the other end is communicated with the storage groove 1111 of the storage chamber 113 , so that the lower liquid channel 114 of the aerosol generation matrix channel in the liquid storage chamber 13 enters the heating body 12 .

In another embodiment, the accommodating groove 1111 may not be provided on the atomizing top seat 111 , that is, the bottom wall of the accommodating groove 1111 is not used as the abutting portion 110 , and the abutting portion 110 may be formed by other structures of the atomizing seat 11 . of.

Referring to FIG. 2 , the atomizing assembly 1 also includes a sealing top cover 19 . The sealing top cover 19 is arranged on the surface of the atomizing top seat 111 close to the liquid storage chamber 13, and is used to realize the sealing between the liquid storage chamber 13, the atomizing top seat 111 and the air outlet channel 14 to prevent liquid leakage. Optionally, the material of the sealing member 18 and the sealing top cover 19 is silicone or fluororubber.

The atomizing assembly 1 further includes a conducting member 17 . The conducting member 17 is disposed on the side of the heating body 12 away from the liquid storage chamber 13 , and the conducting member 17 is fixed to the atomizing base 112 . One end of the conducting member 17 is electrically connected to the heating element 12 , and the other end is electrically connected to the power supply assembly 2 , so that the heating element 12 can work. The conducting member 17 may be a metal thimble.

In some embodiments, the end face of the cavity wall of the liquid storage chamber 13 close to the heating body 12 abuts against the sealing member 18 , that is, the end face of the cavity wall of the liquid storage cavity 13 close to the heating body 12 serves as the abutting portion 110 (refer to FIG. 3. FIG. 3 is a partial structural diagram of another embodiment of the atomizing assembly provided by the present application), and other structures of the atomizing assembly 1 are changed accordingly. The setting manner of the abutting portion 110 is designed according to needs, which is not limited in the present application.

Please refer to FIG. 4 and FIG. 5 , FIG. 4 is a schematic three-dimensional structure diagram of the heating element provided by the present application, and FIG. 5 is a schematic cross-sectional view of the heating element provided in FIG. 4 .

The heating body 12 includes a dense matrix 121, and the material of the dense matrix 121 is glass, dense ceramic or silicon. When the dense substrate 121 is glass, it can be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass. The dense substrate 121 is provided with an atomization area 124 and a non-atomization area 125; the atomization area 124 is the area where the heating element 12 atomizes the aerosol to generate the matrix to generate aerosol, and the non-atomization area 125 is the area on the dense substrate 121 except for the atomization. areas other than zone 124. The atomization zone 124 has a plurality of liquid conducting holes 1211 penetrating the dense substrate 121 for transferring the aerosol-generating substrate from one side of the dense substrate 121 to the other side; the non-atomization zone 125 is provided with at least one ventilation hole 1212 ;

It can be understood that, in order to improve the strength of the plate-shaped dense substrate 121 , only the liquid guide holes 1211 are provided in the atomization area 124 , and the non-atomization area 125 is not provided with the liquid guide holes 1211 . That is, the non-atomization area 125 is arranged around the atomization area 124 and is a blank area. It can be understood that the size of the area around the atomization area 124 on the dense substrate 121 in this application is larger than the diameter of the liquid guide hole 1211, so it can be called a blank area; that is, the blank area in this application can form a liquid guide hole. 1211 without forming the liquid conducting hole 1211, and the area around the atomization zone 124 where the liquid conducting hole 1211 cannot be formed.

By arranging a ventilation hole 1212 on the dense base 121 of the heating element 12, one end of the ventilation hole 1212 is communicated with the liquid storage chamber 13, and the other end of the ventilation hole 1212 is communicated with the atomizing cavity 115 or the outside atmosphere, and the ventilation hole 1212 realizes the ventilation of the liquid storage chamber 13, maintains the balanced air pressure in the liquid storage chamber 13, and then ensures the smooth liquid filling of the liquid storage chamber 13, so that the heating element 12 can supply sufficient liquid. That is to say, the heating body 12 provided in the embodiment of the present application has a ventilation function, and there is no need to provide a ventilation structure on other structures of the atomization assembly 1, which reduces the processing difficulty of the ventilation structure in the electronic atomization device.

In this embodiment, the dense matrix 121 is in the shape of a sheet. It can be understood that the sheet is relative to the block, and the ratio of the length to the thickness of the sheet is larger than the ratio of the length to the thickness of the block. That is, in the present embodiment, the dense base 121 is in the shape of a flat plate. In other embodiments, the dense base body 121 may also be arc-shaped, cylindrical, etc., such as a cylindrical shape, and other structures in the atomization assembly 1 are arranged in cooperation with the specific structures of the dense base body 121 . The following description will be given by taking the dense substrate 121 as a flat plate as an example.

Specifically, the thickness of the dense matrix 121 is 0.2 mm˜1 mm. When the thickness of the dense substrate 121 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 high, and the cost of setting the liquid conducting holes 1211 is high; when the thickness of the dense substrate 121 is less than 0.2 mm, it is impossible to guarantee the density The strength of the base body 121 is not conducive to improving the performance of the electronic atomization device. In one embodiment, the thickness of the dense matrix 121 is 0.2 mm to 0.5 mm.

The diameter of the liquid conducting hole 1211 is 10 μm to 100 μm. When the diameter of the liquid guide hole 1211 is less than 10 μm, the liquid supply demand cannot be met, resulting in a decrease in the amount of aerosol; when the diameter of the liquid guide hole 1211 is greater than 100 μm, the aerosol-generating matrix is likely to flow out of the liquid guide hole 1211, causing liquid leakage and fogging. reduction in efficiency. In one embodiment, the diameter of the liquid conducting hole 1211 is 15 μm˜60 μm.

The diameter of the ventilation hole 1212 is 100 μm˜200 μm, and the ventilation pressure of the ventilation hole 1212 is -600pa to -1200pa. The pore size of the ventilation holes 1212 is larger than 200 μm, which may lead to the risk of liquid leakage; the pore size of the ventilation holes 1212 is smaller than 100 μm, which 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 holes 1212 can be designed according to the thickness of the dense substrate 121 and the preset ventilation pressure. When the pressure difference between the two sides of the heating element 12 reaches the preset ventilation pressure, the liquid in the ventilation holes 1212 is replaced by gas. Push out to ventilate the liquid storage chamber 13 . According to the theoretical calculation method of the ventilation pressure, the theoretical maximum ventilation pressure is the pressure generated by the resistance along the path + the surface tension + the liquid level height, the thickness of the dense substrate 121 is 0.2mm ~ 1mm, and the diameter of the ventilation hole 1212 is 100μm ~ 200μm, corresponding to When the ventilation pressure is about -600pa to -1200pa, it can be applied to aerosol-generating substrates with a viscosity in the range of 60cp to 500cp.

It can be understood that the thickness of the dense substrate 121, the diameter of the liquid conducting hole 1211, and the diameter of the ventilation hole 1212 can be selected according to actual needs. Wherein, in one embodiment, the ratio of the pore diameter of the ventilation hole 1212 to the pore diameter of the liquid guide hole 1211 is 1:1 to 4:1, for example, 2:1, which can achieve a better ventilation effect.

In this embodiment, the heating body 12 further includes a heating element 122, and the heating element 122 is disposed in the atomization area 124 of the dense substrate 121, and is used for heating the atomized aerosol-generating substrate. The heating element 122 can be a heating sheet, a heating wire, a heating film, a heating net, etc., and can be arranged on the surface of the dense base 121 or embedded in the dense base 121, and can be specifically designed according to needs. In other embodiments, the dense matrix 121 can heat itself, eg, a conductive ceramic that can heat itself.

In one embodiment, the heating element 122 is a heating film formed on the surface of the dense substrate 121, and the heating film is a thin film; the thickness of the heating film ranges from 200 nanometers to 5 microns; nanometer-1 micrometer; in one embodiment, the thickness of the heating film ranges from 200 nanometers to 500 nanometers. When the heating film is a thin film, the heating film has a plurality of micropores 1221 that correspond to the plurality of liquid conducting holes 1211 one-to-one and communicate with each other. Further, the heating film is also formed on the inner surface of the liquid guiding hole 1211; in one embodiment, the heating film is also formed on the entire inner surface of the liquid guiding hole 1211 (the structure is shown in FIG. 5 ). A heating film is arranged on the inner surface of the liquid guiding hole 1211, so that the aerosol generating substrate can be atomized in the liquid guiding hole 1211, which is beneficial to improve the atomization effect.

In this embodiment, the heating element 12 further includes an electrode 123, the electrode 123 is disposed in the non-atomization area 125 of the dense substrate 121, the electrode 123 is electrically connected to the heating element 122, and the ventilation hole 1212 is disposed in the electrode 123 away from the atomization area 124. side. Specifically, the electrode 123 is electrically connected to the power supply assembly 2 through the conducting member 17 , so that the heating element 122 atomizes the aerosol-generating matrix in the power supply state of the power supply assembly 2 . The electrode 123 includes a positive electrode 1231 and a negative electrode 1232 , and the positive electrode 1231 and the negative electrode 1232 are respectively disposed on opposite sides of the atomization area 124 . The electrode 123 may be a metal thin film.

The number and position of the ventilation holes 1212 are not limited. In one embodiment, the ventilation holes 1212 are located on the side of the electrode 123 away from the atomization area 124 . Generally, one ventilation hole 1212 corresponds to one ventilation channel. The inventor of the present application found that, for the atomizer using the sheet-like dense substrate 121, only one ventilation channel is provided, and the ventilation stroke is more stable. Therefore, preferably, only one ventilation hole 1212 is provided on the dense base 121, which further simplifies the preparation process of the dense base 121, because it is time-consuming to punch holes in the dense base 121.

In one embodiment, the dense substrate 121 is provided with only one ventilation hole 1212 , and the ventilation hole 1212 is located on the side of the positive electrode 1231 or the negative electrode 1232 away from the atomization area 124 . One of the positive electrode 1231 and the negative electrode 1232 is arranged on the edge of the dense substrate 121, and the other one of the positive electrode 1231 and the negative electrode 1232 is arranged spaced apart from the edge of the dense substrate 121; the ventilation hole 1212 is located in the other one of the positive electrode 1231 and the negative electrode 1232 away from the fog one side of the chemical region 124 . Specifically, the electrode 123 and the heating element 122 may be offset on the dense base 121 as a whole, or they may be arranged on the edge of the dense base 121 by increasing the area of one of the positive electrode 1231 and the negative electrode 1232 . For example, in FIG. 4 , the negative electrode 1232 is disposed on the edge of the dense substrate 121 , and the vent hole 1212 is disposed on the side of the positive electrode 1231 away from the atomization area 124 .

Please refer to FIG. 6 . FIG. 6 is a schematic diagram of the assembly structure of the heating element, the seal, and the liquid storage chamber provided in FIG. 4 .

In Fig. 6 , the description is given by taking as an example that all the sealing members 18 are disposed on the surface of the heating body 12 close to the abutting portion 110.

The sealing member 18 is provided with a lower liquid hole 181 , so that the atomization area 124 of the heating element 12 is in fluid communication with the liquid storage chamber 13 . In one embodiment, the lower liquid hole 181 on the sealing member 18 communicates the lower liquid channel 114 on the atomizing top seat 111 with the liquid guide hole 1211 on the dense base 121, and the lower liquid channel 114 connects the lower liquid hole 181 with the reservoir. The liquid cavity 13 is connected, and the aerosol-generating matrix in the liquid storage cavity 13 enters the heating element 12 through the lower liquid channel 114 and the lower liquid hole 181; It is in fluid communication with the liquid storage chamber 13 . In another embodiment, the lower liquid hole 181 on the sealing member 18 makes the heating element 12 and the liquid storage chamber 13 in direct fluid communication; The generated substrate can enter the heating element 12 only through the lower liquid hole 181 . It can be understood that the lower liquid hole 181 of the sealing member 18 is disposed corresponding to the atomization area 124 of the dense substrate 121, and the lower liquid hole 181 exposes at least part of the atomization area 124 to complete atomization.

In one embodiment, the sealing member 18 and the ventilation holes 1212 on the dense base body 121 are dislocated, so that the ventilation holes 1212 communicate with the liquid storage chamber 13; that is, the sealing member 18 seals the edge of the heating body 12 while sealing The ventilation holes 1212 are not blocked. For example, the hole wall of the lower liquid hole 181 of the seal 18 is located between the ventilation hole 1212 and the edge of the seal 18 .

In another embodiment, the sealing member 18 covers the ventilation hole 1212 while sealing the edge of the heating body 12, and a first through hole 182 is provided at the position of the sealing member 18 corresponding to the ventilation hole 1212, so that the ventilation hole 1212 communicates with the liquid storage chamber 13 .

Optionally, as shown in FIG. 6 , the sealing member 18 is provided with only one first through hole 182 corresponding to the ventilation hole 1212 on the dense base 121 . Specifically, the sealing member 18 is a rectangular ring structure, two short side frames of the sealing member 18 are wide and the other narrow, and the first through hole 182 is arranged on the wider short side frame, which is equivalent to the first through hole 182, The lower liquid hole 181 is offset. Since the atomizing area 124 and the electrode 123 of the heating element 12 are offset on the dense base 121, the sealing member 18 is also set as a corresponding offset structure, which is convenient for aligning the first through hole 182 with the ventilation hole 1212 during installation. .

Optionally, as shown in FIG. 7 (FIG. 7 is a schematic diagram of another assembly structure of the heating element, the sealing element, and the liquid storage chamber provided in FIG. 4), in FIG. The surface of the holding portion 110 is introduced as an example. The sealing member 18 is provided with two first through holes 182 , and the two first through holes 182 are symmetrically arranged along the geometric center of the sealing member 18 . The two first through holes 182 One of them is set corresponding to the ventilation holes 1212 on the dense base 121, and this structural design can solve the problem of blind installation and reduce the rate of assembly errors. It can be understood that the dense matrix 121 and the sealing member 18 are generally rectangular. Since the diameters of the ventilation holes 1212 and the first through holes 182 are very small, they are not easily visible to the naked eye. If only one first through hole 182 is provided on the sealing member 18 , it needs to ensure that only one first through hole 182 must be aligned with only one ventilation hole 1212 , that is, the sealing member 18 cannot be installed backwards. The sealing member 18 is provided with two first through holes 182 symmetrically arranged along the geometric center of the sealing member 18. Even if the sealing member 18 is installed backwards, there is always one first through hole 182 and only one ventilation hole. 1212 is aligned and, therefore, can be blind mounted.

Please refer to FIG. 8 and FIG. 9 , FIG. 8 is a schematic cross-sectional view of another embodiment of the heating element provided by the present application, and FIG. 9 is a schematic diagram of the assembly structure of the heating element, the seal, and the liquid storage chamber provided in FIG. 8 .

In one embodiment, referring to FIG. 8 , the atomization region 124 of the heating body 12 and the electrode 123 are symmetrically arranged on the dense base 121 with respect to the geometric center of the dense base 121 . The dense substrate 121 is provided with only one ventilation hole 1212 , and the ventilation hole 1212 is located on the side of the positive electrode 1231 or the negative electrode 1232 away from the atomization area 124 .

In FIG. 9 , the sealing member 18 is all disposed on the surface of the heating body 12 close to the abutting portion 110 as an example for introduction. The sealing member 18 is provided with a lower liquid hole 181 so that the atomization area 124 of the heating body 12 and the liquid storage chamber 13 are formed. fluid communication. The lower liquid hole 181 is also arranged symmetrically with the geometric center of the sealing member 18; in this way, even if the sealing member 18 is installed backwards, the corresponding position of the lower liquid hole 181 and the atomization area 124 remains unchanged. The sealing member 18 is provided with two first through holes 182 , and the two first through holes 182 are arranged symmetrically along the geometric center of the sealing member 18 . The ventilation holes 1212 are correspondingly arranged, and this structural design can solve the problem of blind installation and reduce the rate of assembly errors. It can be understood that the dense matrix 121 and the sealing member 18 are generally rectangular. Since the diameters of the ventilation holes 1212 and the first through holes 182 are very small, they are not easily visible to the naked eye. If only one first through hole 182 is provided on the sealing member 18 , it needs to ensure that only one first through hole 182 must be aligned with only one ventilation hole 1212 , that is, the sealing member 18 cannot be installed backwards. The sealing member 18 is provided with two first through holes 182 symmetrically arranged along the geometric center of the sealing member 18. Even if the sealing member 18 is installed backwards, there is always one first through hole 182 and only one ventilation hole. 1212 is aligned and, therefore, can be blind mounted.

Please refer to FIG. 10 . FIG. 10 is a schematic three-dimensional structure diagram of another embodiment of the heating element provided by the present application.

In one embodiment, referring to FIG. 10 , the atomization region 124 of the heating element 12 and the electrode 123 are symmetrically arranged on the dense base 121 with respect to the geometric center of the dense base 121 . Two ventilation holes 1212 are symmetrically arranged on the dense base 121 along the geometric center of the dense base 121 . One ventilation hole 1212 is located on the side of the positive electrode 1231 away from the atomization area 124 , and the other ventilation hole 1212 is located at the side of the negative electrode 1232 away from the atomization area 124 . One side of the atomization zone 124 . In one embodiment, the dense base 121 is rectangular, and the two ventilation holes 1212 are disposed on the center line of the dense base 121 in the longitudinal direction.

Please refer to FIG. 11 . FIG. 11 is a schematic diagram of the assembly structure of the heating element, the seal, and the liquid storage chamber provided in FIG. 10 .

In FIG. 11 , the sealing member 18 is all disposed on the surface of the heating body 12 close to the abutting portion 110 as an example for introduction. The sealing member 18 is provided with a lower liquid hole 181 so that the atomization area 124 of the heating body 12 and the liquid storage chamber 13 are connected. fluid communication. The lower liquid hole 181 is also symmetrically arranged with respect to the geometric center of the sealing member 18 . In this way, even if the sealing member 18 is installed backwards, the corresponding positions of the lower liquid hole 181 and the atomization area 124 remain unchanged. Optionally, the sealing member 18 is provided with first through holes 182 corresponding to the two ventilation holes 1212 on the dense base 121, thereby forming two ventilation channels. In one embodiment, only one first through hole 182 (as shown in FIG. 11 ) is provided on the sealing member 18 corresponding to one of the two ventilation holes 1212 , so that only one ventilation channel is formed, and blindness can be solved. Assembly problems and reduce assembly errors.

Please refer to FIG. 12 . FIG. 12 is a schematic diagram of the assembly structure of the heating body, the sealing member, and the abutting portion provided in FIG. 10 .

In an embodiment, in FIG. 12 , the sealing member 18 is all disposed on the surface of the heating body 12 close to the abutting portion 110 as an example for introduction. The sealing member 18 is provided with a first through hole 182 at a position corresponding to the ventilation hole 1212, and the The holding portion 110 covers the first through hole 182, and the abutting portion 110 has a second through hole 183 that communicates with the first through hole 182, so that the ventilation hole 1212 passes through the first through hole 182, the second through hole 183 and the liquid storage. The cavity 13 communicates. Optionally, a coating may be provided on the hole walls of the first through hole 182 and the second through hole 183, and the material of the coating has stronger wettability than the material of the sealing member 18, or the material of the coating may generate aerosols. The contact angle of the substrate is smaller than the contact angle of the material of the seal 18 and the aerosol-generating substrate; the material of the coating is one of polysiloxane and vinyl acetate, and the hydrophilic and/or lipophilic properties of these materials are Better hydrophilic and/or lipophilic than silica gel and fluororubber. Optionally, a hollow protrusion 184 that communicates with the second through hole 183 may be disposed on the abutting portion 110 corresponding to the first through hole 182 , and the hollow protrusion 184 is disposed in the first through hole 182 and covers the first through hole. 182 (shown in FIG. 11 ); the material of the abutting part 110 is more wettable than the material of the seal 18 , or the contact angle between the material of the abutting part 110 and the aerosol-generating substrate is smaller than that of the sealing part 18 The contact angle with the aerosol-generating substrate; the material of the abutting portion 110 is one of plastic, glass and silicon, and the hydrophilicity and/or lipophilicity of these materials are higher than those of silica gel and fluororubber. or good lipophilicity.

Since the air bubbles are easily adhered to the sealing member 18 (silica gel or fluororubber), a coating is provided on the hole wall of the first through hole 182 on the sealing member 18, or the abutting portion 110 (plastic or glass) (part) has a hollow protrusion 184 that communicates with the second through hole 183, and makes the hollow protrusion 184 cover the hole wall of the first through hole 182 to avoid the adhesion of air bubbles, thereby preventing the occurrence of bubble jams and achieving better ventilation. Effect.

In another embodiment, when the sealing member 18 is provided with the first through hole 182 at the position corresponding to the ventilation hole 1212 , the abutting portion 110 and the first through hole 182 can also be arranged in a dislocation, and the abutting portion 110 does not block the first through hole 182 . A through hole 182 , so that the ventilation hole 1212 communicates with the liquid storage chamber 13 through the first through hole 182 .

Please refer to FIG. 13 . FIG. 13 is a schematic diagram of the assembly structure of another embodiment of the heating element and the sealing member provided in FIG. 10 .

In FIG. 13 , the sealing member 18 is partly located on the surface of the heating body 12 close to the abutting portion 110 , partly on the side of the heating body 12 , and partly on the surface of the heating body 12 away from the bearing portion 110 ; The edges of the 12 are fully clad. The sealing member 18 is disposed on the surface of the heating body 12 close to the abutting portion 110, and corresponding to the ventilation hole 1212 is provided with a first through hole 182, so that the ventilation hole 1212 is communicated with the liquid storage chamber 13; The part of the body 12 away from the surface of the abutting portion 110 is also provided with a first through hole 182 corresponding to the ventilation hole 1212, so that the ventilation hole 1212 is communicated with the atomization chamber 115 or the outside atmosphere, thereby realizing the replacement of the liquid storage chamber 13. gas. The sealing member 18 is provided with lower liquid holes 181 on the surface of the heating body 12 close to the abutting portion 110 and on the surface of the heating body 12 far from the abutting portion 110 to expose the atomizing area 124 . The arrangement between the sealing member 18 and the resisting portion 110 can be referred to the above-mentioned content, and will not be repeated here.

The above description is only an embodiment of the present application, and is 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 to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims

A heating element for atomizing a liquid aerosol generating substrate, comprising:

A dense substrate, an atomization area and a non-atomization area are arranged on the dense substrate; the atomization area has a plurality of liquid-conducting holes penetrating the dense substrate, and is used for transferring the aerosol-generating substrate from the dense substrate One side of the base body is transmitted to the other side; the non-atomization area is provided with at least one ventilation hole; the aperture of the ventilation hole is larger than the aperture of the liquid guide hole.
The heating element according to claim 1, wherein the heating element further comprises a heating element, which is arranged in the atomization area of the dense substrate, and is used for heating and atomizing the aerosol-generating substrate.
The heating element according to claim 2, further comprising an electrode, the electrode is arranged in the non-atomization area of the dense matrix, the heating element is electrically connected to the electrode; the ventilation hole is arranged on the electrode The side away from the atomization zone.
The heating element according to claim 3, wherein the electrode comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on opposite sides of the atomization area; The ventilation hole is located on the side of the positive electrode or the negative electrode away from the atomization area.
The heating element according to claim 4, wherein one of the positive electrode and the negative electrode is arranged on the edge of the dense matrix, and the other is arranged at an interval from the edge of the dense matrix; the ventilation hole is located at the edge of the dense matrix. The other one of the positive electrode and the negative electrode is away from the side of the atomization area.
The heating element according to claim 3, wherein the electrode comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on opposite sides of the atomization area; There are several ventilation holes, one of the ventilation holes is located on the side of the positive electrode away from the atomization area, and the other ventilation hole is located at the side of the negative electrode away from the atomization area.
The heating element according to claim 1, wherein the non-atomization area is arranged around the atomization area and is a blank area.
The heating element according to claim 1, wherein the thickness of the dense substrate is 0.2 mm to 1 mm, the diameter of the ventilation holes is 100 μm to 200 μm, and the ventilation pressure of the ventilation holes is -600 Pa to - 1200pa.
The heating element according to claim 8, wherein the diameter of the liquid-conducting hole is 10 μm to 100 μm.
The heating element according to claim 8, wherein the diameter of the liquid-conducting hole is 15 μm to 60 μm.
The heating element according to claim 1, wherein the ratio of the diameter of the ventilation hole to the diameter of the liquid guide hole is 1:1 to 4:1.
The heating element according to claim 1, wherein the material of the dense matrix is glass, dense ceramic or silicon.
The heating element according to claim 2, wherein the heating element is a heating wire, a heating net or a heating film; the heating element is arranged on the surface of the dense base or embedded in the interior of the dense base.
An atomization assembly for an electronic atomization device, comprising:

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

A heating element for atomizing the aerosol-generating matrix from the liquid storage chamber; the heating element is the heating element according to any one of claims 1-13; one end of the ventilation hole is connected to the liquid storage chamber The cavity is communicated, and the other end is communicated with the outside atmosphere.
The atomization assembly according to claim 14, further comprising a seal and a resisting part; the seal is located on a side of the resisting part away from the liquid storage chamber; the seal is at least partially located on the Between the heating body and the abutting portion, the sealing member is used to seal the structural gap between the heating body and the liquid storage cavity; the sealing member is provided with a lower liquid hole, so that the The atomization area of the heating body is in fluid communication with the liquid storage chamber.
The atomizing assembly according to claim 15, wherein the sealing member is dislocated from the ventilation hole, so that the ventilation hole communicates with the liquid storage chamber; or, the sealing member corresponds to the The position of the ventilation hole is provided with a first through hole, so that the ventilation hole communicates with the liquid storage chamber.
The atomizing assembly according to claim 16, wherein the heating body is the heating body according to claim 5; and the sealing member is provided with only one of the first ventilation holes corresponding to one of the two ventilation holes. a through hole.
The atomizer assembly according to claim 16, wherein the heating body is the heating body according to claim 3; the sealing member is provided with two first through holes, and the two first through holes are The center of the hole is symmetrically arranged; one of the two first through holes is arranged corresponding to the ventilation hole.
The atomizing assembly according to claim 16, wherein a first through hole is provided on the sealing member at a position corresponding to the ventilation hole; The abutting portion has a second through hole communicating with the first through hole, so that the ventilation hole communicates with the liquid storage chamber.
The atomizing assembly according to claim 19, wherein a coating is provided on the hole wall of the first through hole, and the material of the coating is more wettable than the material of the sealing member, or the coating is The contact angle of the material of the layer with the aerosol-generating substrate is smaller than the contact angle of the material of the seal with the aerosol-generating substrate.
The atomizing assembly according to claim 19, wherein the abutting portion has a second through hole communicating with the first through hole; the abutting portion is provided with a connection with the first through hole corresponding to the first through hole. The second through hole communicates with the hollow protrusion, and the hollow protrusion is arranged in the first through hole; The contact angle of the material of the holder and the aerosol-generating substrate is smaller than the contact angle of the material of the seal and the aerosol-generating substrate.
The atomization assembly according to claim 15, further comprising an atomization seat, the atomization seat has a accommodating cavity, and the heating body is arranged in the accommodating cavity;

The abutting portion is located on the atomizing seat and/or the cavity wall of the liquid storage cavity.
The atomizing assembly of claim 14, wherein the aerosol-generating substrate has a viscosity of 60 cp to 500 cp.
An electronic atomization device, comprising an atomization assembly and a battery assembly, the atomization assembly is the atomization assembly described in any one of claims 14-23, and the battery assembly provides the atomization assembly for work. energy.