CN114794571A

CN114794571A - Heating element, atomization component and electronic atomization device

Info

Publication number: CN114794571A
Application number: CN202111459800.6A
Authority: CN
Inventors: 吕铭; 赵月阳; 李光辉
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-07-29

Abstract

The application provides a heating element, an atomization component and an electronic atomization device, wherein the heating element comprises a compact substrate, and an atomization area and a non-atomization area are arranged on the compact substrate; the atomising region having a plurality of liquid-conducting apertures through the dense substrate for transporting the aerosol-generating substrate from one side of the dense substrate to the other; the non-atomization area is provided with at least one ventilation hole; the aperture of the air vent is larger than that of the liquid guide hole. Through the arrangement, the heating body has the ventilation function, and the processing difficulty of the ventilation structure in the electronic atomization device is reduced.

Description

Heating element, atomization component and electronic atomization device

Technical Field

The invention relates to the technical field of atomization components, in particular to a heating body, an atomization component and an electronic atomization device.

Background

The main function of the electronic atomising device is achieved by an atomising assembly which atomises an internally stored aerosol-generating substrate to generate an aerosol which is inhaled by a user. Depending on the desired function, the atomizing assembly typically has a reservoir for storing the aerosol-generating substrate, a heater for atomizing the aerosol-generating substrate, a seal for preventing liquid from the reservoir from leaving the heater, and an airflow channel for the flow of ambient air and aerosol through a port of the airflow channel for a user to inhale the aerosol.

When the electronic atomization device is heated and atomized, aerosol generation substrate in the liquid storage cavity is consumed, the gas space inside the liquid storage cavity is increased, the air pressure in the liquid storage cavity is reduced, the resistance of the aerosol generation substrate flowing to the heating body is increased, liquid supply is easy to cause insufficient liquid, and the dry burning phenomenon is generated. In order to solve the problem, a ventilation structure which is communicated with external air and the liquid storage cavity is usually additionally arranged on the atomizing base, and the external air supplies air to the liquid storage cavity through the ventilation structure under the driving of pressure difference to balance the air pressure. But the difficulty of the processing of the prior ventilation structure is larger.

Disclosure of Invention

In view of this, the present application provides a heating element, an atomizing component and an electronic atomizing device to solve the technical problem of the prior art that the processing difficulty of the ventilation structure is large.

In order to solve the above technical problem, a first technical solution provided by the present application is: providing a heating body, which comprises a compact substrate, wherein an atomizing area and a non-atomizing area are arranged on the compact substrate; the atomising region having a plurality of liquid-conducting apertures through the dense substrate for transporting the aerosol-generating substrate from one side of the dense substrate to the other; the non-atomization area is provided with at least one ventilation hole; the aperture of the vent hole is larger than that of the liquid guide hole.

The heating body further comprises a heating element which is arranged in the atomization area of the compact substrate and used for heating and atomizing the aerosol generating substrate.

The electrode is arranged in a non-atomization area of the dense matrix, and the heating element is electrically connected with the electrode; the air vent is arranged on one side of the electrode, which is far away from the atomization area.

The electrode comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on two opposite sides of the atomization zone; and only one ventilation hole is arranged on the dense matrix, and the ventilation hole is positioned on one side of the positive electrode or the negative electrode, which is far away from the atomization area.

One of the positive electrode and the negative electrode is arranged at the edge of the dense matrix, and the other one of the positive electrode and the negative electrode is arranged at intervals with the edge of the dense matrix; the ventilation hole is positioned on one side of the other of the anode and the cathode far away from the atomization zone.

The electrode comprises a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively arranged on two opposite sides of the atomization zone; two air vent holes are arranged on the compact substrate in a centrosymmetric manner, one air vent hole is positioned on one side, away from the atomization region, of the positive electrode, and the other air vent hole is positioned on one side, away from the atomization region, of the negative electrode.

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

Wherein the thickness of the dense matrix is 0.2 mm-1 mm, the aperture of the ventilation hole is 100 μm-200 μm, and the ventilation pressure of the ventilation hole is-600 pa to-1200 pa.

Wherein the aperture of the liquid guide hole is 10-100 μm.

Wherein the aperture of the liquid guide hole is 15-60 mu m.

Wherein the ratio of the aperture of the ventilation hole to the aperture of the liquid guide hole is 1: 1-4: 1.

Wherein the material of the compact substrate is glass, compact 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 compact base body or embedded in the compact base body.

In order to solve the above technical problem, a second technical solution provided by the present application is: providing an atomization assembly, which comprises a liquid storage cavity and a heating body; the reservoir chamber is for storing an aerosol-generating substrate; the heating element is used for atomizing the aerosol generating substrate from the liquid storage cavity; the heating element is any one of the heating elements described above; one end of the air vent is communicated with the liquid storage cavity, and the other end of the air vent is communicated with the outside atmosphere.

Wherein, also include the seal and support the department; the sealing element is positioned on one side of the abutting part far away from the liquid storage cavity; the sealing element is at least partially positioned between the heating element and the abutting part and is used for sealing a structural gap between the heating element and the liquid storage cavity; and a liquid discharging hole is formed in the sealing piece, so that the atomizing area of the heating body is communicated with the liquid storage cavity through fluid.

Wherein the sealing element is arranged in a staggered way with the ventilation hole so as to enable the ventilation hole to be communicated with the liquid storage cavity; or the sealing element is provided with a first through hole corresponding to the position of the ventilation hole so as to enable the ventilation hole to be communicated with the liquid storage cavity.

Wherein the heating element is the heating element; the seal is provided with one first through hole corresponding to only one of the two ventilation holes.

Wherein the heating element is the heating element; the sealing element is provided with two first through holes, and the two first through holes are arranged in a central symmetry manner; one of the two first through holes is arranged corresponding to the ventilation hole.

Wherein the sealing element is provided with a first through hole corresponding to the position of the ventilation hole; the abutting part and the first through hole are arranged in a staggered mode, or the abutting part is provided with a second through hole communicated with the first through hole, so that the ventilating hole is communicated with the liquid storage cavity.

Wherein a coating is provided on a wall of the first through hole, the coating being of a material that is more wettable than the material of the seal, or the material of the coating having a smaller contact angle with the aerosol-generating substrate than the material of the seal.

The butting part is provided with a second through hole communicated with the first through hole; the supporting part is provided with a hollow bulge communicated with the second through hole corresponding to the first through hole, and the hollow bulge is arranged in the first through hole; the material of the retaining portion is more wettable than the material of the sealing member, or the contact angle of the material of the retaining portion with the aerosol-generating substrate is smaller than the contact angle of the material of the sealing member with the aerosol-generating substrate.

The heating device comprises a heating element, a heating element and an atomizing base, wherein the atomizing base is provided with an accommodating cavity, and the heating element is arranged in the accommodating cavity;

the abutting part is positioned on the cavity wall of the atomizing seat and/or the liquid storage cavity.

Wherein the aerosol-generating substrate has a viscosity of from 60cp to 500 cp.

In order to solve the above technical problem, a third technical solution provided by the present application is: the utility model provides an electronic atomization device, includes atomization component and battery pack, atomization component is above-mentioned arbitrary atomization component, battery pack gives atomization component work provides energy.

The beneficial effect of this application: different from the prior art, the heating body in the application comprises a compact substrate, wherein an atomizing area and a non-atomizing area are arranged on the compact substrate; the atomisation zone having a plurality of liquid conducting apertures extending through the dense substrate for transporting the aerosol-generating substrate from one side of the dense substrate to the other; the non-atomization area is provided with at least one ventilation hole; the aperture of the air vent is larger than that of the liquid guide hole. Through the arrangement, the heating body has the ventilation function, and the processing difficulty of the ventilation structure in the electronic atomization device is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an electronic atomizer provided herein;

FIG. 2 is a schematic structural view of an atomizing assembly provided herein;

FIG. 3 is a schematic view of a portion of another embodiment of an atomizing assembly provided herein;

FIG. 4 is a schematic perspective view of a heat-generating body provided in the present application;

FIG. 5 is a schematic sectional view of the heat-generating body provided in FIG. 4;

FIG. 6 is a schematic view showing an assembly structure of the heating element, the sealing member and the liquid storage chamber provided in FIG. 4;

FIG. 7 is a schematic view showing another assembling structure of the heating element, the sealing member and the liquid storage chamber provided in FIG. 4;

FIG. 8 is a schematic cross-sectional view of another embodiment of a heat-generating body provided by the present application;

FIG. 9 is a schematic view showing an assembly structure of the heating element, the sealing member and the liquid storage chamber provided in FIG. 8;

FIG. 10 is a schematic perspective view of another embodiment of a heat-generating body provided by the present application;

FIG. 11 is a schematic view showing an assembly structure of the heating element, the sealing member and the liquid storing chamber shown in FIG. 10;

FIG. 12 is a schematic view showing an assembly structure of the heating element, the sealing member and the holding portion shown in FIG. 10;

FIG. 13 is a schematic view of an assembly structure of another embodiment of the heat-generating body and the sealing member provided in FIG. 10.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

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 application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic atomization device provided in the present application.

The electronic atomization device can be used for atomization of liquid substrates. The electronic atomizer comprises an atomizer assembly 1 and a power supply assembly 2 connected to each other. The atomization assembly 1 and the power supply assembly 2 can be integrally arranged or detachably connected and designed according to specific requirements.

The atomizing assembly 1 is used for storing a liquid aerosol-generating substrate and atomizing the aerosol-generating substrate to form an aerosol for a user to inhale, and the liquid aerosol-generating substrate can be liquid substrates such as liquid medicine, plant leaf liquid and the like; the atomizing assembly 1 can be used in particular in different fields, such as medical, cosmetic, leisure, smoking, etc. The power supply module 2 includes a battery (not shown), an airflow sensor (not shown), and a controller (not shown); the battery is used to power the atomizing assembly 1 to enable the atomizing assembly 1 to atomize the aerosol-generating substrate to form an aerosol; the airflow sensor is used for detecting airflow changes in the electronic atomization device, and the controller controls the atomization assembly 1 to work or not according to the airflow changes detected by the airflow sensor and a preset program.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an atomizing assembly provided in the present application.

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

In the present embodiment, the heat-generating body 12 includes a liquid suction surface and an atomization surface. The surface of the heating element 12 which is communicated with the liquid storage cavity 13 is a liquid absorption surface. The surface of the heating element 12 far away from the liquid storage cavity 13 is an atomization surface, an atomization cavity 115 is formed between the atomization surface of the heating element 12 and the inner wall surface of the accommodating cavity 113, and the atomization cavity 115 is communicated with the air outlet channel 14. The atomizing base 112 is provided with an air inlet 116 to communicate the outside with the atomizing chamber 115. The outside air enters the atomizing cavity 115 through the air inlet 116, and the aerosol atomized by the heating element 12 enters the air outlet channel 14 and finally reaches the suction opening 15 to be sucked by the user.

The atomizing assembly 1 further includes a retaining portion 110 and a seal 18. The sealing member 18 is located on a side of the retaining portion 110 away from the reservoir 13. The sealing member 18 is at least partially located between the heating element 12 and the abutting portion 110, and the sealing member 18 is used for sealing a structural gap between the heating element 12 and the reservoir 13 to prevent the aerosol-generating substrate or the condensate from overflowing from the edge of the heating element 12. That is, the sealing member 18 is used to seal the periphery of the heat-generating body 12. Optionally, the material of the sealing member 18 is silicone rubber or fluororubber. It is understood that the sealing member 18 may be entirely located on the surface of the heating element 12 near the abutting portion 110; or, the sealing member 18 is partially located on the surface of the heating element 12 close to the abutting portion 110, and partially located on the side surface of the heating element 12; or, the sealing member 18 is partially located on the surface of the heating element 12 close to the abutting portion 110, partially located on the side of the heating element 12, and partially located on the surface of the heating element 12 far from the abutting portion 110, and the arrangement mode of the sealing member 18 can be designed according to specific needs.

In the present embodiment, the atomizing base 11 has a holding portion 110. Specifically, the atomizing top seat 111 is provided with a receiving groove 1111, 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 housing tank 1111, the bottom wall of the housing tank 1111 forms the abutting portion 110, and the sealing member 18 is at least partially disposed between the bottom wall of the housing tank 1111 and the liquid absorbing surface of the heating element 12. The heating element 12 and the sealing member 18 are disposed in the housing tank 1111.

Two lower liquid channels 114 are arranged on the atomizing top seat 111, and the two lower liquid channels 114 are arranged on two sides of the air outlet channel 14. The lower liquid passage 114 has one end communicating with the reservoir 13 and the other end communicating with the housing groove 1111 of the housing cavity 113, so that the aerosol-generating substrate passage lower liquid passage 114 in the reservoir 13 enters the heating element 12.

In another embodiment, the receiving groove 1111 may not be provided in the atomizing top 111, that is, the bottom wall of the receiving groove 1111 may not be used as the abutting portion 110, and the abutting portion 110 may be formed by another structure of the atomizing base 11.

Referring to fig. 2, the atomizing assembly 1 further includes a seal cap 19. The sealing top cover 19 is arranged on the surface of the atomizing top base 111 close to the liquid storage cavity 13, and is used for sealing the liquid storage cavity 13, the atomizing top base 111 and the air outlet channel 14 to prevent liquid leakage. Optionally, the material of the sealing member 18 and the sealing cap 19 is silicone rubber or fluororubber.

Atomization component 1 still includes to lead to a 17, leads to a 17 and sets up in the heating element 12 and keeps away from one side of stock solution chamber 13, leads to a 17 and is fixed in atomizing base 112. The conducting member 17 has one end electrically connected to the heating element 12 and the other end electrically connected to the power supply unit 2 so that the heating element 12 can operate. The conducting member 17 may be a metal thimble.

In some embodiments, an end surface of the cavity wall of the reservoir 13 close to the heating element 12 abuts against the sealing member 18, that is, the end surface of the cavity wall of the reservoir 13 close to the heating element 12 serves as the abutting portion 110 (refer to fig. 3, fig. 3 is a partial schematic structural diagram of another embodiment of the atomizing assembly provided in the present application), and other structures of the atomizing assembly 1 are changed accordingly. The arrangement of the abutting portion 110 is designed as required, and the present application is not limited thereto.

Referring to fig. 4 and 5, fig. 4 is a schematic perspective view of a heat-generating body provided in the present application, and fig. 5 is a schematic cross-sectional view of the heat-generating body provided in fig. 4.

The heating body 12 comprises a dense substrate 121, and the material of the dense substrate 121 is glass, dense ceramic or silicon. When the dense substrate 121 is glass, it may be one of ordinary glass, quartz glass, borosilicate glass, and photosensitive lithium aluminosilicate glass. The dense matrix 121 is provided with an atomization area 124 and a non-atomization area 125; the atomization zone 124 is a region where the heat-generating body 12 atomizes the aerosol-generating substrate to generate aerosol, and the non-atomization zone 125 is a region other than the atomization zone 124 on the dense substrate 121. The nebulizing zone 124 has a plurality of liquid-conducting apertures 1211 extending through the dense substrate 121 for transporting the aerosol-generating substrate from one side of the dense substrate 121 to the other; the non-atomizing area 125 is provided with at least one ventilation aperture 1212; the diameter of the air vent 1212 is larger than that of the drainage 1211.

It is understood that in order to increase the strength of the flat dense substrate 121, the liquid guide holes 1211 are provided only in the atomizing area 124, and the liquid guide holes 1211 are not provided in the non-atomizing area 125. That is, the non-atomization zone 125 is disposed around the atomization zone 124 and is a whitespace zone. It is understood that the area of the dense substrate 121 around the atomizing area 124 is larger than the aperture of the liquid guide 1211, and is referred to as a blank area; that is, the blank region in the present application is a region where the liquid guide hole 1211 can be formed without forming the liquid guide hole 1211, and a region around the atomizing area 124 where the liquid guide hole 1211 cannot be formed.

Through set up the scavenge port 1212 on the fine and close base member 121 at heat-generating body 12, the one end and the stock solution chamber 13 intercommunication of scavenge port 1212, the other end and the atomizing chamber 115 of scavenge port 1212 or external atmosphere intercommunication realize the taking a breath to stock solution chamber 13 through the scavenge port 1212, keep the balanced atmospheric pressure in the stock solution chamber 13, and then guarantee that stock solution chamber 13 descends the liquid smoothly for heat-generating body 12 supplies liquid sufficient. That is to say, the heating element 12 provided in the embodiment of the present application has a ventilation function, and a ventilation structure does not need to be additionally provided on another structure of the atomizing assembly 1, thereby reducing the difficulty in processing the ventilation structure in the electronic atomizing device.

In the present embodiment, the dense substrate 121 has a sheet shape, and it is understood that the sheet shape is relative to the block shape, and the ratio of the length to the thickness of the sheet shape is larger than the ratio of the length to the thickness of the block shape. That is, in the present embodiment, the dense substrate 121 has a flat plate shape. In other embodiments, dense substrate 121 may be in an arc shape, a cylindrical shape, or the like, for example, a cylindrical shape, and other structures in atomizing assembly 1 may be provided in cooperation with the specific structure of dense substrate 121. The following description will be made by taking the dense substrate 121 as a flat plate.

Specifically, the thickness of the dense matrix 121 is 0.2mm to 1 mm. When the thickness of the dense substrate 121 is greater than 1mm, the liquid supply requirement cannot be met, the aerosol amount is reduced, the heat loss is large, and the cost for arranging the liquid guide hole 1211 is high; when the thickness of the dense matrix 121 is less than 0.2mm, the strength of the dense matrix 121 cannot be ensured, which is not beneficial to improving the performance of the electronic atomization device. Preferably, the thickness of the dense matrix 121 is 0.2mm to 0.5 mm.

The aperture of the liquid guide hole 1211 is 10 to 100 mu m; preferably, the size of the liquid guide hole 1211 ranges from 15 μm to 60 μm. When the aperture of the liquid guide hole 1211 is less than 10 μm, the liquid supply requirement cannot be met, so that the aerosol quantity is reduced; when the pore size of the liquid guide 1211 is larger than 100 μm, the aerosol-generating substrate is liable to flow out of the liquid guide 1211 to cause leakage, resulting in a decrease in atomization efficiency. Preferably, the pore diameter of the liquid guide 1211 is 15 to 60 μm.

The aperture of the air vent 1212 is 100 μm to 200 μm, and the ventilation pressure of the air vent 1212 is-600 pa to-1200 pa. The pore diameter of the air vent 1212 is larger than 200 μm, and there may be a risk of leakage; the diameter of the ventilation hole 1212 is smaller than 100 μm, which cannot achieve a good ventilation effect, and thus affects the discharge rate and the atomization efficiency. It can be understood that the aperture of the ventilation hole 1212 can be designed according to the thickness of the dense substrate 121 and the preset ventilation pressure, and when the pressure difference between the two sides of the heating element 12 reaches the preset ventilation pressure, the liquid in the ventilation hole 1212 is pushed out by the gas to ventilate the liquid storage cavity 13. According to the theoretical calculation method of the ventilation pressure, theoretically, the maximum ventilation pressure is the pressure generated by the on-way resistance, the surface tension and the liquid level height, the thickness of the compact substrate 121 is 0.2 mm-1 mm, the aperture of the ventilation hole 1212 is 100 μm-200 μm, and the aerosol generating substrate with the viscosity in the range of 60 cp-500 cp can be suitable under the condition that the corresponding ventilation pressure is about-600 pa to-1200 pa.

It is understood that the thickness of the dense substrate 121, the aperture of the liquid guide 1211 and the aperture of the venting hole 1212 can be selected according to actual requirements. Among them, the ratio of the aperture of the ventilation hole 1212 to the aperture of the liquid guide 1211 is preferably 1:1 to 4:1, for example, 2:1, and a good ventilation effect can be achieved.

In the present embodiment, the heating element 12 further includes a heating element 122, and the heating element 122 is provided in the atomizing area 124 of the dense substrate 121 for heating the atomized aerosol-generating substrate. The heating element 122 may be a heating sheet, a heating wire, a heating film, a heating net, etc., and may be disposed on the surface of the dense substrate 121, or may be embedded inside the dense substrate 121, and is specifically designed according to the requirement. In other embodiments, dense matrix 121 may itself generate heat, for example, a conductive ceramic that may itself generate heat.

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 range of the heating film is 200 nanometers-5 micrometers, preferably, the thickness range of the heating film is 200 nanometers-1 micrometer, and more preferably, the thickness range of the heating film is 200 nanometers-500 nanometers. When the heat generating film is a thin film, the heat generating film has a plurality of micro holes 1221 corresponding to the plurality of liquid guide holes 1211 one to one and communicating with each other. Further, the heat generating film is formed on the inner surface of the liquid guide hole 1211; preferably, the heat generating film is further formed on the entire inner surface of the liquid guide hole 1211 (the structure is shown in fig. 5). The inner surface of the liquid guide 1211 is provided with a heating film, so that the aerosol generating substrate can be atomized in the liquid guide 1211, and the atomization effect is improved.

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

The number and location of the venting holes 1212 are not limited, and preferably, the venting holes 1212 are located on a side of the electrode 123 away from the aerosolization area 124. Generally, one ventilation hole 1212 corresponds to one ventilation channel. The inventor of the present application has found that, in the atomizer using the sheet-like dense substrate 121, the ventilation stroke is more stable by providing only one ventilation channel. Therefore, preferably, only one ventilation hole 1212 is provided on the dense substrate 121, which further simplifies the manufacturing process of the dense substrate 121 because it takes time to perforate the dense substrate 121.

In one embodiment, only one ventilation hole 1212 is disposed on the dense substrate 121, and the ventilation hole 1212 is located on a side of the positive electrode 1231 or the negative electrode 1232 away from the atomization region 124. One of the positive electrode 1231 and the negative electrode 1232 is disposed at the edge of the dense substrate 121, and the other of the positive electrode 1231 and the negative electrode 1232 is disposed at an interval from the edge of the dense substrate 121; the ventilation aperture 1212 is located on a side of the other of the positive electrode 1231 and the negative electrode 1232 away from the atomization zone 124. Specifically, the entire electrode 123 and the heating element 122 may be offset on the dense substrate 121, or may be provided on the edge of the dense substrate 121 so that the area of one of the positive electrode 1231 and the negative electrode 1232 is increased. For example, in fig. 4, the negative electrode 1232 is disposed at the edge of the dense substrate 121, and the ventilation hole 1212 is disposed at the side of the positive electrode 1231 away from the atomization region 124.

Referring to fig. 6, fig. 6 is a schematic view of an assembly structure of the heating element, the sealing member and the liquid storage chamber provided in fig. 4.

In FIG. 6, the sealing material 18 is entirely provided on the surface of the heating element 12 close to the abutting portion 110.

The sealing member 18 is provided with a lower liquid hole 181 to fluidly communicate the atomizing area 124 of the heating body 12 with the reservoir 13. In one embodiment, the liquid outlet 181 of the sealing member 18 connects the liquid outlet channel 114 of the atomizing top 111 with the liquid guide 1211 of the dense substrate 121, the liquid outlet channel 114 connects the liquid outlet 181 with the liquid storage chamber 13, and the aerosol-generating substrate in the liquid storage chamber 13 enters the heating element 12 through the liquid outlet channel 114 and the liquid outlet 181; that is, the liquid-absorbing surface of the heating element 12 is in fluid communication with the reservoir 13 through the lower liquid hole 181 of the sealing member 18. In another embodiment, a lower liquid hole 181 in the sealing member 18 allows the heat generating body 12 to be in direct fluid communication with the reservoir 13; that is, the downcomer 114 need not be provided and the aerosol-generating substrate in the reservoir 13 can enter the heat-generating body 12 only through the downcomer holes 181. It will be appreciated that the lower liquid holes 181 of the seal 18 are arranged in correspondence with the atomization zone 124 of the dense matrix 121, the lower liquid holes 181 exposing at least part of the atomization zone 124 to complete atomization.

In one embodiment, the sealing element 18 is arranged in a staggered manner with respect to the ventilation hole 1212 on the dense substrate 121, so that the ventilation hole 1212 is communicated with the reservoir 13; that is, the sealing member 18 does not shield the ventilation hole 1212 while sealing the edge of the heating body 12. For example, the orifice wall of the downcomer 181 of the seal 18 is located between the vent 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 the first through hole 182 is provided at a position of the sealing member 18 corresponding to the ventilation hole 1212 so that the ventilation hole 1212 communicates with the reservoir 13.

Alternatively, as shown in fig. 6, the sealing element 18 is provided with only one first through hole 182 corresponding to the venting hole 1212 in the dense substrate 121. Specifically, the sealing element 18 is a rectangular ring structure, two short side frames of the sealing element 18 are one wide and one narrow, and the first through hole 182 is disposed on the short side frame which is wider, which is equivalent to the first through hole 182 and the lower liquid hole 181 which are offset. Since the atomization region 124 and the electrode 123 of the heating element 12 are offset on the dense substrate 121, the sealing member 18 is also arranged in a corresponding offset structure, so that the first through hole 182 is aligned with the ventilation hole 1212 when being installed.

Alternatively, as shown in fig. 7 (fig. 7 is another schematic assembly structure of the heating element, the sealing element and the reservoir provided in fig. 4), in fig. 7, the sealing element 18 is disposed on the surface of the heating element 12 close to the abutting portion 110, two first through holes 182 are disposed on the sealing element 18, the two first through holes 182 are symmetrically disposed along the geometric center of the sealing element 18, and one of the two first through holes 182 is disposed corresponding to the ventilation hole 1212 on the dense substrate 121, and this structural design can solve the blind assembly problem and reduce the assembly error rate. It will be appreciated that the dense matrix 121 and the seal member 18 are generally rectangular, and since the vent 1212 and the first through hole 182 have a very small diameter, they are not readily visible to the naked eye, and if only one first through hole 182 is provided in the seal member 18, it is necessary to ensure that only one first through hole 182 must be aligned with only one vent 1212, i.e. the seal member 18 cannot be installed in reverse. The seal member 18 is provided with two first through holes 182 symmetrically disposed along the geometric center of the seal member 18, and even if the seal member 18 is reversely mounted, one first through hole 182 is always aligned with only one vent hole 1212, so that blind mounting is possible.

Referring to fig. 8 and 9, fig. 8 is a schematic cross-sectional view of another embodiment of the heating element provided in the present application, and fig. 9 is a schematic view of an assembly structure of the heating element, the sealing member, and the reservoir chamber provided in fig. 8.

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

In fig. 9, the sealing member 18 is disposed on the surface of the heating element 12 close to the abutting portion 110, and the sealing member 18 is provided with a liquid discharge hole 181 to allow the atomizing area 124 of the heating element 12 to be in fluid communication with the liquid storage chamber 13. The lower liquid hole 181 is also arranged symmetrically with the geometric center of the sealing member 18; thus, even if the seal 18 is installed upside down, the corresponding position of the lower liquid hole 181 and the atomizing area 124 is not changed. Two first through holes 182 are formed in the sealing element 18, the two first through holes 182 are symmetrically arranged along the geometric center of the sealing element 18, one of the two first through holes 182 is arranged corresponding to the ventilation hole 1212 in the dense base body 121, the blind assembly problem can be solved through the structural design, and the assembly failure rate is reduced. It will be appreciated that the dense matrix 121 and the seal 18 are generally rectangular, and because the vent 1212 and the first through hole 182 have very small diameters, they are not easily visible to the naked eye, and if only one first through hole 182 is provided in the seal 18, it is necessary to ensure that only one first through hole 182 must be aligned with only one vent 1212, i.e. the seal 18 cannot be installed in the reverse. The seal 18 is provided with two first through holes 182 symmetrically disposed along the geometric center of the seal 18, and even if the seal 18 is reversely mounted, one first through hole 182 is always aligned with only one ventilation hole 1212, so that blind mounting is possible.

Referring to fig. 10, fig. 10 is a schematic perspective view of another embodiment of the heating element provided by the present application.

In one embodiment, referring to FIG. 10, the atomizing area 124 of the heating body 12 and the electrode 123 are disposed symmetrically on the dense substrate 121 with respect to the geometric center of the dense substrate 121. Two ventilation holes 1212 are symmetrically arranged on the dense substrate 121 along the geometric center of the dense substrate 121, one ventilation hole 1212 is located on the side of the positive electrode 1231 away from the atomization region 124, and the other ventilation hole 1212 is located on the side of the negative electrode 1232 away from the atomization region 124. Preferably, the dense substrate 121 has a rectangular shape, and the two venting holes 1212 are disposed on a middle line of the dense substrate 121 in a length direction.

Referring to FIG. 11, FIG. 11 is a schematic view showing an assembly structure of the heating element, the sealing member and the liquid storage chamber shown in FIG. 10.

In fig. 11, the sealing member 18 is disposed on the surface of the heating element 12 close to the abutting portion 110, and the sealing member 18 is provided with a liquid discharge hole 181 to allow the atomizing area 124 of the heating element 12 to be in fluid communication with the liquid storage chamber 13. The weep holes 181 are also symmetrically positioned about the geometric center of the seal 18. Thus, even if the seal 18 is installed upside down, the corresponding position of the lower liquid hole 181 and the atomizing area 124 is not changed. Optionally, the sealing element 18 is provided with a first through hole 182 corresponding to each of the two ventilation holes 1212 on the dense substrate 121, so as to form two ventilation channels. Preferably, only one first through hole 182 (shown in fig. 11) is provided on the sealing member 18 corresponding to one of the two venting holes 1212, so that only one venting channel is formed, and the blind assembly problem can be solved, thereby reducing the assembly error rate.

Referring to fig. 12, fig. 12 is a schematic view of an assembly structure of the heating element, the sealing member and the abutting portion provided in fig. 10.

In one embodiment, in fig. 12, the sealing member 18 is disposed on the surface of the heating element 12 close to the holding portion 110, for example, the sealing member 18 is disposed with a first through hole 182 at a position corresponding to the ventilation hole 1212, the holding portion 110 covers the first through hole 182, and the holding portion 110 has a second through hole 183 communicating with the first through hole 182, so that the ventilation hole 1212 communicates with the reservoir 13 through the first through hole 182 and the second through hole 183. Optionally, a coating may be provided on the walls of the first and second through

holes

182, 183, the material of the coating being more wettable than the material of the seal 18, or the material of the coating having a contact angle with the aerosol-generating substrate that is less than the contact angle of the material of the seal 18 with the aerosol-generating substrate; the material of the coating is one of polysiloxane and vinyl acetate, and the hydrophilicity and/or lipophilicity of the materials are better than those of silica gel and fluororubber. Optionally, a hollow protrusion 184 communicating with the second through hole 183 may be disposed at a position of 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 a hole wall of the first through hole 182 (as shown in fig. 11); the material of the retaining portion 110 is more wettable than the material of the seal 18, or the contact angle of the material of the retaining portion 110 with the aerosol-generating substrate is less than the contact angle of the material of the seal 18 with the aerosol-generating substrate; the material of the supporting part 110 is one of plastic, glass and silicon, and the hydrophilicity and/or lipophilicity of these materials are better than those of silica gel and fluororubber.

Because the bubbles are easily adhered to the sealing member 18 (a silicone member or a fluororubber member), the coating is arranged on the hole wall of the first through hole 182 on the sealing member 18, or the abutting portion 110 (a plastic member or a glass member) is provided with the hollow protrusion 184 communicated with the second through hole 183, and the hollow protrusion 184 covers the hole wall of the first through hole 182, so that the bubbles are prevented from being adhered, the bubble blocking phenomenon is prevented, and a good ventilation effect is realized.

In another embodiment, when the sealing member 18 is provided with the first through hole 182 at a position corresponding to the ventilation hole 1212, the abutting portion 110 and the first through hole 182 may be disposed in a staggered manner, and the abutting portion 110 does not block the first through hole 182, so that the ventilation hole 1212 is communicated with the reservoir 13 through the first through hole 182.

Referring to fig. 13, fig. 13 is a schematic view of an 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 located partly on the surface of the heating element 12 close to the abutting portion 110, partly on the side of the heating element 12, and partly on the surface of the heating element 12 away from the abutting portion 110; that is, the sealing material 18 completely covers the edge of the heating element 12. The part of the sealing element 18 arranged on the surface of the heating element 12 close to the abutting part 110 is provided with a first through hole 182 corresponding to the ventilation hole 1212 so as to enable the ventilation hole 1212 to be communicated with the liquid storage cavity 13; the sealing member 18 is disposed on the surface of the heating element 12 away from the supporting portion 110, and a first through hole 182 is disposed corresponding to the ventilation hole 1212, so that the ventilation hole 1212 is communicated with the atomizing chamber 115 or the external atmosphere, thereby ventilating the reservoir chamber 13. The portion of the sealing member 18 disposed on the surface of the heating element 12 close to the abutting portion 110 and the portion disposed on the surface of the heating element 12 far from the abutting portion 110 are both provided with liquid dropping holes 181 so as to expose the atomizing area 124. The arrangement between the sealing element 18 and the abutting portion 110 can be referred to the above description, and will not be described again.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A heat-generating body for atomising a liquid aerosol-generating substrate, comprising:

the device comprises a compact substrate, wherein an atomization area and a non-atomization area are arranged on the compact substrate; the atomising region having a plurality of liquid-conducting apertures through the dense substrate for transporting the aerosol-generating substrate from one side of the dense substrate to the other; the non-atomization area is provided with at least one ventilation hole; the aperture of the vent hole is larger than that of the liquid guide hole.

2. A heat-generating body as described in claim 1, further comprising a heat-generating element provided in the atomizing area of the dense substrate for heat-atomizing the aerosol-generating substrate.

3. A heat-generating body as described in claim 2, further comprising an electrode provided in a non-atomizing area of the dense base, the heat-generating element being electrically connected to the electrode; the air vent is arranged on one side of the electrode, which is far away from the atomization area.

4. A heat-generating body as described in claim 3, wherein said electrodes comprise a positive electrode and a negative electrode, which are respectively provided on opposite sides of said atomizing area; and only one ventilation hole is arranged on the dense matrix, and the ventilation hole is positioned on one side of the positive electrode or the negative electrode, which is far away from the atomization area.

5. The heat-generating body according to claim 4, characterized in that one of the positive electrode and the negative electrode is provided at an edge of the dense base, and the other is provided at a distance from the edge of the dense base; the ventilation hole is positioned on one side of the other of the anode and the cathode far away from the atomization zone.

6. A heat-generating body as described in claim 3, wherein said electrodes comprise a positive electrode and a negative electrode, which are respectively provided on opposite sides of said atomizing area; two air vent holes are arranged on the compact substrate in a centrosymmetric manner, one air vent hole is positioned on one side, far away from the atomization area, of the positive electrode, and the other air vent hole is positioned on one side, far away from the atomization area, of the negative electrode.

7. A heat-generating body as described in claim 1, wherein said non-atomizing area is provided around said atomizing area and is a margin area.

8. A heat-generating body as described in claim 1, characterized in that the thickness of said dense substrate is 0.2mm to 1mm, the pore diameter of said ventilation hole is 100 μm to 200 μm, and the ventilation pressure of said ventilation hole is-600 pa to-1200 pa.

9. A heat-generating body as described in claim 8, characterized in that the pore diameter of the liquid conducting pore is 10 μm to 100 μm.

10. A heat-generating body as described in claim 8, characterized in that the pore diameter of the liquid conducting pore is 15 μm to 60 μm.

11. A heat-generating body as described in claim 1, wherein a ratio of an aperture of said ventilation hole to an aperture of said liquid leading hole is 1:1 to 4: 1.

12. A heat-generating body as described in claim 1, characterized in that the material of the dense base is glass, dense ceramic or silicon.

13. A heat-generating body as described in claim 2, characterized in that the heat-generating element is a heat-generating wire, a heat-generating net or a heat-generating film; the heating element is arranged on the surface of the compact base body or embedded in the compact base body.

14. An atomizing assembly for an electronic atomizing device, comprising:

a reservoir chamber for storing an aerosol-generating substrate;

a heating element for atomising the aerosol-generating substrate from the reservoir; the heat-generating body is the heat-generating body according to any one of claims 1 to 13; one end of the air vent is communicated with the liquid storage cavity, and the other end of the air vent is communicated with the outside atmosphere.

15. The atomizing assembly of claim 14, further comprising a seal and a retaining portion; the sealing element is positioned on one side of the abutting part far away from the liquid storage cavity; the sealing element is at least partially positioned between the heating element and the abutting part and is used for sealing a structural gap between the heating element and the liquid storage cavity; and a liquid discharging hole is formed in the sealing piece, so that the atomizing area of the heating body is communicated with the liquid storage cavity through fluid.

16. The atomizing assembly of claim 15, wherein said sealing member is offset from said vent opening such that said vent opening is in communication with said reservoir; or the sealing element is provided with a first through hole corresponding to the position of the ventilation hole so as to enable the ventilation hole to be communicated with the liquid storage cavity.

17. The atomizing assembly of claim 16, wherein the heat-generating body is the heat-generating body of claim 5; the seal is provided with one first through hole corresponding to only one of the two ventilation holes.

18. The atomizing assembly of claim 16, wherein the heat-generating body is the heat-generating body of claim 3; the sealing element is provided with two first through holes, and the two first through holes are arranged in a central symmetry manner; one of the two first through holes is arranged corresponding to the ventilation hole.

19. The atomizing assembly of claim 16, wherein said seal is provided with a first through hole at a location corresponding to said vent hole; the abutting part and the first through hole are arranged in a staggered mode, or the abutting part is provided with a second through hole communicated with the first through hole, so that the ventilating hole is communicated with the liquid storage cavity.

20. The atomizing assembly of claim 19, wherein the aperture wall of the first through-aperture is provided with a coating of a material that is more wettable than the material of the sealing member or has a contact angle with the aerosol-generating substrate that is less than the contact angle of the material of the sealing member with the aerosol-generating substrate.

21. The atomizing assembly of claim 19, wherein said retaining portion has a second through-hole in communication with said first through-hole; the supporting part is provided with a hollow bulge communicated with the second through hole corresponding to the first through hole, and the hollow bulge is arranged in the first through hole; the material of the retaining portion is more wettable than the material of the sealing member, or the contact angle of the material of the retaining portion with the aerosol-generating substrate is smaller than the contact angle of the material of the sealing member with the aerosol-generating substrate.

22. The atomizing assembly of claim 15, further comprising an atomizing base, wherein the atomizing base has a receiving cavity, and the heating element is disposed in the receiving cavity;

23. A nebulising assembly according to claim 14, characterised in that the aerosol-generating substrate has a viscosity of 60-500 cp.

24. An electronic atomizer device, comprising an atomizer assembly according to any one of claims 14 to 23 and a battery assembly for providing power to the operation of the atomizer assembly.