WO2024098544A1 - Heating assembly capable of enhancing liquid guiding and atomization, and atomizer - Google Patents

Abstract

Provided in the present application are a heating assembly capable of enhancing liquid guiding and atomization, and an atomizer. The heating assembly comprises: a liquid guide body, the middle of one end of the liquid guide body being provided with a fixing column in a protruding manner; and heating bodies, which are made of porous metal, are injection-molded inside the liquid guide body, and are used for heating and atomizing a liquid substrate guided into the heating bodies, wherein several atomization holes for exposing the inside heating bodies are formed at the end in the liquid guide body away from the fixing column; at least two electrodes are provided on the heating bodies; and at the end in the liquid guide body away from the fixing column, windows are formed in positions corresponding to each of the electrodes, so as to expose the inside electrodes. The heating assembly of the present application solves the problems in the prior art of the liquid guide efficiency being low, the atomization effect being poor, and the heating bodies being easily deformed and damaged due to inadequate rigidity thereof.

Description

A heating component and atomizer capable of enhancing liquid conduction and atomization

This application is based on the Chinese patent application with application number 202211393897.X and application date November 8, 2022, and claims its priority. The entire content of the application is hereby introduced as a whole into this application.

Technical Field

The present application relates to the technical field of electronic atomization, and in particular to an atomizer and an atomizer using porous metal as a heating element.

Background technique

In the prior art, electronic atomization devices are mainly composed of an atomizer and a power supply assembly. The atomizer generally includes a liquid storage part and an atomization core. The liquid storage part is used to store atomizable liquid matrix, and the atomization core is used to heat and atomize the liquid matrix to form an aerosol that can be consumed by the smoker; the power supply assembly is used to provide energy to the atomizer.

Among them, the atomization core includes a heating element and a liquid guide liquid. The liquid guide liquid is used to lead the liquid matrix to the heating element, and the heating element atomizes the liquid matrix introduced into the liquid guide liquid. However, in the existing combined structure of the two, there is a certain distance between the liquid guide side of the liquid guide liquid and the heating element, resulting in a slow liquid guide speed, which affects the atomization effect. In addition, the heating element is arranged on the surface of the liquid guide liquid. How to effectively abut and combine the two is a problem. In addition, because the heating element is a relatively soft structure with insufficient strength and rigidity, it is easily deformed and damaged by external forces when it is arranged on the surface. It is often necessary to additionally set a heating element bracket to fix it and improve the strength.

Summary of the invention

In view of the above-mentioned existing technical defects, the present application provides a heating component and an atomizer that can enhance liquid conduction and atomization, aiming to solve the existing problems of slow liquid conduction efficiency, poor atomization effect and insufficient rigidity of the heating element, which is easy to deform and damage.

In the first aspect, in order to solve the above technical problems, a heating component capable of enhancing liquid conduction and atomization is provided, comprising:

A liquid guide is used to absorb and conduct liquid matrix, and a fixing column is provided in the middle of one end of the liquid guide;

A heating element made of porous metal is injection molded inside the liquid-conducting body, and is used to heat and atomize the liquid matrix introduced into the heating element. A plurality of atomization holes are opened on one end of the liquid-conducting body away from the fixed column to expose the internal heating element; and at least two electrodes are provided on the heating element, and windows are opened at the positions corresponding to the electrodes on one end of the liquid-conducting body away from the fixed column to expose the internal electrodes.

Furthermore, the porous metal is metal felt, foam metal or heating cloth.

Furthermore, the liquid-conducting medium is made of porous ceramics.

Furthermore, the heating element includes a plurality of V-shaped portions connected end to end to form a ring, so that a circular hole is formed in the middle of the heating element.

Furthermore, the heating element includes a first annular portion with a circular hole in the middle, a second annular portion arranged around the outer circumference of the first annular portion at intervals, and at least two strip portions for connecting the first annular portion and the second annular portion, and the outer circumferential protrusion of the second annular portion is provided with at least two symmetrically arranged electrodes.

Furthermore, two symmetrically arranged auxiliary electrodes are protruded from the outer periphery of the second annular portion.

Furthermore, a strip portion is provided at a position corresponding to each electrode, and the strip portion is in a straight line or a curve.

Furthermore, an air duct is provided through the center of the fixing column, the center of the circular hole and the center of the air duct are located on the same axis, and the aperture of the circular hole is smaller than the aperture of the air duct, so that at least part of the heating element is exposed in the air duct.

Furthermore, a plurality of reinforcing ribs are provided between the liquid-conducting body and the fixing column.

In a second aspect, the present application further provides an atomizer, comprising a heating component capable of enhancing liquid conduction and atomization as described in any one of the first aspects.

This application has the following beneficial effects:

In the present application, the heating element is firstly injection molded into the liquid-conducting body, thereby directly covering the heating element with the liquid-conducting body, thereby improving the structural strength of the heating element, and the heating element will not be directly affected by external forces, thereby solving the problem that the heating element is easily deformed and damaged when it is set on the surface of the liquid-conducting body; secondly, the method of injection molding the heating element inside can also reduce the conduction distance of transferring the liquid matrix to the heating element, so as to improve the liquid-conducting speed and atomization effect, thereby solving the problems of slow liquid-conducting efficiency, poor atomization effect and insufficient rigidity of the heating element, which is easy to deform and damage; and the atomization hole opened on the liquid-conducting body can ensure that the aerosol after atomization can flow outward, and the window design can realize the electrical connection between the heating element and the external power supply component.

In addition, at least a portion of the heating element is exposed in the airway so as to be directly atomized in the airway, which cooperates with the aerosol atomized in the atomization hole to improve the rate and effect of atomization.

Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of a heating component in an embodiment;

FIG2 is a cross-sectional view of a heating component in an embodiment;

FIG3 is a top view of a heating component in an embodiment;

FIG4 is a bottom view of the heating component in the embodiment;

FIG5 is a schematic diagram of a heating element in one specific implementation case;

FIG6 is a schematic diagram of a heating element in another specific implementation example;

FIG. 7 is a schematic diagram of a heating element in yet another specific implementation example.

Detailed ways

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

It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and/or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or combinations thereof.

It should also be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term “and/or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

Example 1

As shown in Figures 1-4, a heating component capable of enhancing liquid conduction and atomization shown in this embodiment is applied to the atomizer of the electronic atomization device, and is used to heat and atomize the liquid matrix stored in the atomizer to form an aerosol for human inhalation; the heating component specifically includes a columnar liquid conduction liquid 1 and a heating element 2, the liquid conduction liquid 1 is used to absorb and conduct the liquid matrix in the atomizer, and the liquid conduction liquid 1 has two surfaces that are arranged opposite to each other and connected along its height direction, so that the liquid matrix can flow between its two surfaces through the liquid conduction effect of the liquid conduction liquid; the heating element 2 is made of porous metal, that is, a large number of directional or random holes are dispersed inside the heating element, so that the heating element can be heated and atomized. At the same time, the liquid matrix can be absorbed. During the atomization process, the fluidity of the liquid matrix in the atomization core can be improved, thereby ensuring the atomization effect of the liquid matrix. The aerosol formed by atomization has a good consistency in taste, and the heating element is arranged inside the liquid-conducting body through an integral molding method such as injection molding. Here, the structure in which the heating element is injection-molded inside the liquid-conducting body can use the liquid-conducting body to directly cover the heating element, thereby improving the structural strength of the heating element, and the heating element will not be directly affected by external forces, thereby solving the problem that the heating element is easily deformed and damaged when it is arranged on the surface of the liquid-conducting body; secondly, the method of injecting the heating element inside can also reduce the conduction distance for transferring the liquid matrix to the heating element, thereby improving the liquid conduction speed and the atomization effect.

It can be understood that, in actual use, the two surfaces of the guiding liquid are arranged opposite to each other, one of which is the liquid absorption surface 3 in contact with the liquid matrix in the atomizer, and the other surface is the atomization surface 4 for atomizing the liquid matrix and outputting the aerosol outward, that is, when the liquid matrix is guided from its liquid absorption surface to the atomization surface by the guiding liquid, it is heated and atomized by the internal heating element to generate an aerosol, that is, the heating element is located between the liquid absorption surface and the atomization surface; in addition, the guiding liquid can be cylindrical, flat or stepped, etc., and this application does not make any specific explanations on this. Specifically, this embodiment takes a cylindrical shape as an example, and a fixed column 10 is provided in the middle of the liquid absorbing surface of the liquid-guiding body. The heating component can be fixed in the atomizer by using the fixed column, and in the structural design fixed by the fixed column, the periphery of the liquid-guiding body can be directly in contact with the liquid matrix, and it is only necessary to ensure that the atomizing surface is exposed to the outside of the atomizer, that is, in addition to the liquid absorbing surface contacting with the liquid matrix for absorbing liquid, its periphery can also absorb liquid, thereby increasing the contact area between the liquid-guiding body and the liquid matrix, and can effectively increase the liquid guiding amount and liquid guiding speed.

Preferably, an air passage 11 is provided at the center of the fixed column 10, which passes through the atomization surface and the liquid absorption surface from front to back, and a penetrating circular hole 20 is provided at the center of the heating element 2 at a position corresponding to the air passage 11, that is, the center of the circular hole and the center of the air passage are located on the same axis; and an electrode 21 is provided at both ends of the heating element 2, which are used as a positive electrode and a negative electrode respectively, so as to respectively connect the positive and negative electrodes of an external power supply, and an atomization hole 12 is provided on the atomization surface of the liquid-conducting body 1 to expose the internal heating element 2, and windows 13 are provided at the positions corresponding to the two electrodes to expose the internal electrodes 21, and the opened atomization hole can ensure that the atomized aerosol can flow outward, and the opened window can facilitate the electrical connection between the electrode and the external power supply.

Preferably, the liquid-conducting material can be a loose porous material such as a fiber layer or porous ceramic, or a perforated glass matrix or a dense ceramic matrix, that is, when a glass matrix or a dense ceramic matrix is used, the glass matrix or the dense ceramic matrix has a liquid-conducting hole extending from the liquid absorption surface to the atomization surface. The liquid-conducting material in this embodiment is a porous ceramic, and the porous ceramic material is generally a ceramic material sintered at high temperature by components such as aggregates, binders and pore-forming agents, and has a large number of pore structures connected to each other and to the surface of the material. Since the porous ceramic material has excellent properties such as high porosity, stable chemical properties, large specific surface area, low volume density, low thermal conductivity, and high temperature and corrosion resistance, it has many applications in metallurgy, biology, energy, environmental protection and other fields. The porous ceramic in this embodiment has a porosity of 48-65%, a pore size of 15-35um, and a strength greater than 300N.

In some optional implementations, the porous metal may preferably be metal felt, foam metal or heating cloth; wherein the metal felt is woven from a plurality of metal fibers so that the metal felt body has a plurality of woven holes, which are used to achieve the functions of liquid absorption and liquid conduction, and during the suction process, the suction airflow can bring out the aerosol in the woven holes, further ensuring the taste of the aerosol; the foam metal has a plurality of foam pores (i.e., the fine pores and/or tiny holes mentioned above), the diameter of the foam pores can reach the millimeter level, and the foam pores on the foam metal are almost or completely interconnected, which can also achieve the liquid conduction function and allow the aerosol on the foam metal to be brought out as much as possible.

In a specific implementation case, as shown in Figure 5, the heating element 2 includes a first annular portion 23 with a circular hole 20 in the middle, a second annular portion 24 arranged at intervals around the outer circumference of the first annular portion 23, and two strip portions 25 for connecting the first annular portion 23 and the second annular portion 24, and the outer peripheral protrusion of the second annular portion 24 is provided with two symmetrically arranged electrodes 21; the annular structure design of the multiple rings is such that when the current flows thereon, it flows in a parallel annular manner. The use of the ring design can improve the rigidity of the heating element, making it stronger, more stable in performance and longer in service life, and can make the temperature distribution more uniform, avoid the problem of core sticking caused by heat concentration, and make the aerosol produced by atomization have a good taste.

Preferably, the two strip portions 25 are respectively arranged at the positions of the two electrodes, that is, the current conducted from one of the electrodes will flow from the circular portions arranged in the two inner and outer circles to the other electrode, just forming a parallel flow from one end to the other and around the front and back of the two circles; of course, as shown in Figure 6, two auxiliary electrodes 26 can be added to the outer periphery of the second circular portion. These two auxiliary electrodes are not used to connect to an external power supply, and the two auxiliary electrodes 26 are cross-arranged with the two electrodes 21 and distributed in a circular array on the outer periphery of the second circular portion. These two auxiliary electrodes are used to balance the temperature distribution around the entire heating element.

Preferably, the strip portion 24 is in a straight line or a curved line. In the present embodiment, it is in a straight line, which facilitates the connection between the two annular portions and the integral molding.

In another specific implementation case, as shown in FIG7 , the heating element 2 includes a plurality of V-shaped portions 22 connected end to end to form a ring shape, forming a ring structure to form a circular hole 20 corresponding to the airway 11 in the middle of the heating element 2, and the two electrodes 21 are made into a V-shaped fan shape, and the two electrodes 21 and the plurality of V-shaped portions 22 are connected end to end, that is, the connection structure between the electrode and the V-shaped portion is the same as the connection structure of the two adjacent V-shaped portions, and the two electrodes are symmetrically arranged on the left and right, that is, multiple V-shaped portions are connected at both ends between the two electrodes to form a symmetrical design; the V-shaped linear design of the heating element can ensure uniform temperature distribution during heating and uniform particle size of the atomized particles; it can be understood that the apex of the V-shaped portion is arranged inward, that is, the apex of the V-shaped portion is located around the circular hole.

Preferably, the aperture of the circular hole 20 is smaller than the aperture of the airway 11, that is, the middle part of the heating element 2 will protrude from the wall of the airway 11, so that at least part of the heating element 2 is exposed in the airway 11, so that the liquid matrix can be conducted to the airway and directly atomized, which cooperates with the aerosol atomized in the atomization surface to improve the atomization rate and effect.

Preferably, as shown in FIG. 4 , the atomization hole is an arc-shaped hole extending in the circumferential direction, including a plurality of atomization holes 12 disposed on both sides of the air duct 11 to expose the internal heating element 2, and the plurality of atomization holes are disposed around the air duct 11; of course, the plurality of atomization holes may also be disposed in other distribution forms such as a single-circle or multi-circle annular array, which is not specifically limited here. In addition, the shape of the atomization hole 12 may also be circular, elliptical, polygonal or conical.

Preferably, the air duct is a stepped hole with one end small and the other end large, the heating element is located at the step, the aperture of the circular hole is smaller than the minimum aperture of the air duct, and the part with the larger aperture in the air duct is located on the atomization surface of the liquid-guiding liquid, so that more of the heating element can be exposed in the air duct on the atomization surface relative to the liquid absorption surface, reducing the obstruction of the heating element by the atomization surface of the liquid-guiding liquid, thereby increasing the contact area between the heating element and the air and the atomization area while ensuring the rigidity of the heating element.

Preferably, a plurality of reinforcing ribs 14 are provided between the liquid absorbing surface of the liquid guiding body 1 and the fixing column 10 to enhance the strength of the fixing column.

Preferably, the heating element is parallel to the atomizing surface so that the conduction distance of the liquid matrix is basically the same and the atomization effect at each location is balanced; of course, the heating element can also be arranged at an angle, that is, the heating element is not parallel to the atomizing surface, to adapt to different shape requirements, and this is not specifically limited in the present application.

Example 2

The atomizer shown in this embodiment is used for storing and atomizing a liquid matrix. A heating component as described in Example 1 is provided inside the atomizer so as to atomize the liquid matrix stored in the atomizer by using the heating component.

The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and these modifications or substitutions should be included in the protection scope of the present application; therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (20)

A heating component capable of enhancing liquid conduction and atomization, comprising: The liquid is guided, and a fixing column is provided in the middle of one end; A heating element made of porous metal is injection molded inside the liquid-conducting body, and is used to heat and atomize the liquid matrix introduced into the heating element. A plurality of atomization holes are opened on one end of the liquid-conducting body away from the fixed column to expose the internal heating element; and at least two electrodes are provided on the heating element, and windows are opened at the positions corresponding to the electrodes on one end of the liquid-conducting body away from the fixed column to expose the internal electrodes. According to the heating component capable of enhancing liquid conduction and atomization as claimed in claim 1, wherein the porous metal is metal felt, foam metal or heating cloth. The heating component capable of enhancing liquid conduction and atomization according to claim 1, wherein the liquid conduction liquid is made of porous ceramic. According to the heating component capable of enhancing liquid conduction and atomization as claimed in claim 1, wherein the heating element comprises a plurality of V-shaped portions connected end to end to form a ring, so that a circular hole is formed in the middle of the heating element. According to claim 1, the heating element capable of enhancing liquid conduction and atomization comprises a first annular portion having a circular hole in the middle, a second annular portion arranged around the outer circumference of the first annular portion at intervals, and at least two strip portions for connecting the first annular portion and the second annular portion, and the outer circumferential protrusion of the second annular portion is provided with two symmetrically arranged electrodes. According to the heating component capable of enhancing liquid conduction and atomization as claimed in claim 5, wherein the outer periphery of the second annular portion is also protruded with two symmetrically arranged auxiliary electrodes. According to the heating component capable of enhancing liquid conduction and atomization as claimed in claim 5, wherein a strip portion is provided at a position corresponding to each electrode, and the strip portion is straight-line or curved. According to the heating component capable of enhancing liquid conduction and atomization as described in claim 4, wherein an air duct is provided through the center of the fixed column, the center of the circular hole and the center of the air duct are located on the same axis, and the aperture of the circular hole is smaller than the aperture of the air duct, so that at least part of the heating element is exposed in the air duct. According to the heating component capable of enhancing liquid conduction and atomization as described in claim 5, wherein an air duct is provided through the center of the fixed column, the center of the circular hole and the center of the air duct are located on the same axis, and the aperture of the circular hole is smaller than the aperture of the air duct, so that at least part of the heating element is exposed in the air duct. The heating component capable of enhancing liquid conduction and atomization according to claim 1, wherein a plurality of reinforcing ribs are provided between the liquid conduction body and the fixing column. An atomizer, including a heating component capable of enhancing liquid conduction and atomization; The heating component capable of enhancing liquid conduction and atomization comprises: The liquid is guided, and a fixing column is provided in the middle of one end; A heating element made of porous metal is injection molded inside the liquid-conducting body, and is used to heat and atomize the liquid matrix introduced into the heating element. A plurality of atomization holes are opened on one end of the liquid-conducting body away from the fixed column to expose the internal heating element; and at least two electrodes are provided on the heating element, and windows are opened at the positions corresponding to the electrodes on one end of the liquid-conducting body away from the fixed column to expose the internal electrodes. The atomizer according to claim 11, wherein the porous metal is metal felt, foam metal or heating cloth. The atomizer according to claim 11, wherein the liquid-conducting liquid is made of porous ceramic. The atomizer according to claim 11, wherein the heating element comprises a plurality of V-shaped portions connected end to end to form a ring, so that a circular hole is formed in the middle of the heating element. The atomizer according to claim 11, wherein the heating element comprises a first annular portion having a circular hole in the middle, a second annular portion arranged around the outer circumference of the first annular portion at intervals, and at least two strip portions for connecting the first annular portion and the second annular portion, and the outer circumferential protrusion of the second annular portion is provided with two symmetrically arranged electrodes. The atomizer according to claim 15, wherein the outer periphery of the second annular portion is also protruded with two symmetrically arranged auxiliary electrodes. The atomizer according to claim 15, wherein a strip portion is provided at a position corresponding to each electrode, and the strip portion is straight or curved. The atomizer according to claim 14, wherein an air passage is provided through the center of the fixed column, the center of the circular hole and the center of the air passage are located on the same axis, and the aperture of the circular hole is smaller than the aperture of the air passage, so that at least part of the heating element is exposed in the air passage. The atomizer according to claim 15, wherein an air passage is provided through the center of the fixing column, the center of the circular hole and the center of the air passage are located on the same axis, and the aperture of the circular hole is smaller than the aperture of the air passage, so that at least part of the heating element is exposed in the air passage. The atomizer according to claim 11, wherein a plurality of reinforcing ribs are provided between the liquid-conducting body and the fixing column.