CN218245673U

CN218245673U - Electronic atomization device and atomizer and atomization core thereof

Info

Publication number: CN218245673U
Application number: CN202222001185.0U
Authority: CN
Inventors: 张钊; 柯美林; 罗洪梁; 肖从文
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-10
Anticipated expiration: 2032-07-29

Abstract

The utility model relates to an electronic atomization device and atomizer, atomizing core thereof, wherein the atomizing core includes: a porous body comprising a non-planar atomization surface; and a heating element which is combined on the atomization surface and has a non-planar structure matched with the atomization surface; the utility model increases the atomizing area and improves the liquid supply effect and the atomizing amount by constructing the atomizing surface with a non-planar structure; meanwhile, the non-planar design can ensure that the liquid supply of the atomizing surface to the heating element is more sufficient, particularly in the central area with the most concentrated heating temperature; besides, the mouthfeel and the service life can be further improved.

Description

Electronic atomization device and atomizer and atomization core thereof

Technical Field

The utility model relates to an electronic atomization field especially relates to electronic atomization device and atomizer, atomizing core thereof.

Background

In the related art, an electronic atomization device for sucking aerosol includes an atomization core, where the atomization core includes a porous body for sucking liquid and a heating element combined on a surface of the porous body for heating and atomizing.

The heating body is of a plane structure, the silk-screen printing process is mostly adopted, and some technical bottlenecks appear due to the limitation of the atomization area provided by the atomization surface along with the gradual introduction of the aerosol generation substrate and the requirements of customers on the smoke amount and the taste.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an electronic atomization device and atomizer, atomizing core thereof.

The utility model provides a technical scheme that its technical problem adopted is: configuring an atomizing cartridge for an electronic atomizing device, the atomizing cartridge comprising:

a porous body comprising a non-planar atomization surface; and

and a heating element coupled to the atomization surface and having a non-planar structure adapted to the atomization surface.

Preferably, the atomization surface comprises an inner concave surface; the heating body is combined on the inner concave surface and is provided with an inner concave structure matched with the inner concave surface.

Preferably, the atomization surface comprises a concave circular arc surface; the heating body is combined on the arc surface and is provided with an arc structure matched with the arc surface.

Preferably, the radius of curvature of the circular arc surface is 5-12mm.

Preferably, the arc surface comprises an arc line segment, and the distance between two ends of the arc line segment is 8-14mm.

Preferably, the porous body comprises a porous base layer and a porous fixing layer;

the porous matrix layer comprises a non-planar matrix surface, and the porous fixed layer is stacked on the matrix surface and has a non-planar structure matched with the matrix surface; the atomization surface is formed on the surface, opposite to the porous matrix layer, of the porous fixing layer.

Preferably, the porous matrix layer and the porous fixing layer are made of the same or different materials.

Preferably, at least one of the composition, porosity, pore mean pore diameter, and pore D50 of the porous matrix layer and the porous anchoring layer is different.

Preferably, the porous anchoring layer has a uniform thickness.

Preferably, the heating body is silk-screened on the surface of the porous fixing layer opposite to the porous base layer.

The utility model discloses still construct an atomizer, including stock solution storehouse, airflow channel and atomizing chamber, the atomizing chamber is located on airflow channel's the route, the stock solution storehouse is used for storing aerosol and generates the matrix, including foretell atomizing core, atomizing core establishes the atomizing chamber comes from with the atomizing the aerosol in stock solution storehouse generates the matrix.

The utility model discloses still construct an electronic atomization device, including power and control circuit, including foretell atomizer, the power with the heat-generating body electricity of atomizer is connected, control circuit control the power gives the heat-generating body provides the electric energy.

Implement the utility model discloses following beneficial effect has: the utility model increases the atomizing area and improves the liquid supply effect and the atomizing amount by constructing the atomizing surface with a non-planar structure; meanwhile, the non-planar design can ensure that the liquid supply of the atomizing surface to the heating element is more sufficient, particularly in the central area with the most concentrated heating temperature; besides, the mouthfeel and the service life can be further improved.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a longitudinal cross-sectional view of an electronic atomizer device of the present invention in some embodiments;

fig. 2 is a schematic diagram of an atomizing core of the present invention in some embodiments;

FIG. 3 is a schematic view of the atomizing core of FIG. 2 at another angle;

fig. 4 is a schematic structural diagram of the first assembly and the porous matrix in the atomizing core of the present invention.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate that the device or element referred to must have a specific direction, and thus, should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to figures 1 to 4, the present invention is constructed as an atomising cartridge 1 for use in an electronic atomising device to absorb and heat atomise a liquid aerosol-generating substrate to produce an aerosol. The aerosol may be inhaled or inhaled by the user.

The atomizing core 1 includes a porous body 11 and a heating element 12 provided on the porous body 11. The porous body 11 is a porous structure having a large number of pores, so that the porous body 11 can generate capillary action to absorb and conduct the liquid aerosol-generating substrate, that is, the porous body 11 can generate certain buffering and conducting action on the liquid aerosol-generating substrate. The heating element 12 is for heating the liquid aerosol-generating substrate absorbed into the porous body 11 to atomise the liquid aerosol-generating substrate and produce an aerosol.

The porous body 11 may be a porous ceramic body in some embodiments, and referring to fig. 2, the porous body 11 includes an atomizing surface 13 and a liquid-absorbing surface 14 opposite the atomizing surface 13. The liquid-absorbing surface 14 can draw the liquid aerosol-generating substrate in a liquid storage chamber (not shown) into the porous body 11 by capillary action of the porous body 11, and conduct the liquid aerosol-generating substrate to the atomizing surface 13. The heating element 12 is arranged on the atomization surface 13, and the liquid aerosol generating substrate conducted to the atomization surface 13 can be atomized into aerosol after being heated by the heating element 12.

The atomizing surface 13 is in a non-planar structure to increase the atomizing area and improve the liquid supply effect and the atomizing amount; meanwhile, the non-planar design can make the atomizing surface 13 supply liquid to the heating element 12 more fully, especially in the central area where the heating temperature is most concentrated; besides, the mouthfeel and the service life can be further improved. The heating element 12 is coupled to the atomizing surface 13, and has a non-planar structure that fits the non-planar atomizing surface 13.

In some embodiments of the atomizing core 1 of the present invention, the porous body 11 includes a porous base layer 111 and a porous fixing layer 112. The porous substrate layer 111 includes a substrate surface 1111 facing the porous fixation layer 112 and a first surface 1112 opposite the substrate surface 1111; the substrate surface 1111 is concave and concave, and is concavely formed along the direction of the first surface 1112 for the porous fixing layer 112 to be stacked thereon; the first surface 1112 acts as an absorption surface 14 for absorbing the liquid aerosol-generating substrate.

The porous fixing layer 112 serves as a carrier for the heating element 12, and can reliably dispose the heating element 12 on the porous body 11. The porous fixing layer 112 has an inner concave structure adapted to the substrate surface 1111, and has a uniform thickness, and includes a bonding surface 1121 and an overlapping surface 1122 opposite to the bonding surface 1121.

The bonding surface 1121 is an inward concave surface and is formed by sinking along the direction of the liquid absorbing surface 14; the heating element 12 can be bonded to the bonding surface 1121 as the atomizing surface 13.

The stacking surface 1122 is a convex surface protruding toward the substrate surface 1111; which is opposite to the base surface 1111, is attached to the base surface 1111, and is integrally bonded to the base surface 1111 by sintering. The curvature of the stacking surface 1122 matches that of the substrate surface 1111.

In some embodiments, the porous substrate layer 111 and the porous anchor layer 112 are made of the same material to improve the bonding force therebetween for better bonding effect.

In some embodiments, the porous matrix layer 111 and the porous anchoring layer 112 may or may not be the same material. Wherein the material comprises components and microstructure characteristics; microstructural characteristics include parameters of porosity, average pore size of pores, and D50 of pores, among others. In some embodiments, at least one of the composition, porosity, pore average pore size, and pore D50 of the porous matrix layer 111 and the porous anchoring layer 112 are different to achieve different characteristics.

In some embodiments, the porous matrix layer 111 and the porous fixation layer 112 have different coefficients of thermal expansion. It will be appreciated that the atomizing core needs to be used in a thermal shock environment, and that the constantly rapidly changing temperature has a critical effect on the life of the atomizing core. The difference between the thermal expansion coefficients of the porous base layer 111 and the porous fixing layer 112 can buffer the difference between the thermal expansion coefficients of the porous base layer 111 and the heating element 12, reduce the adverse effects caused by different thermal expansion coefficients, avoid the fracture of the heating element 12 and prolong the service life of the heating element. Preferably, the porous fixing layer 112 has a thermal expansion coefficient between that of the porous base layer 111 and the heat-generating body 12. The advantage of the method is that the gradient transition of the thermal expansion coefficients of the heating element 12, the porous fixing layer 112 and the porous substrate layer 111 can be realized, and the service life of the atomizing core can be further prolonged especially when the joint surface or the overlapping surface is a curved surface or an arc surface.

In some embodiments, the porous matrix layer 111 and the porous fixation layer 112 are different compositions. It will be appreciated that, as mentioned above, parameters such as the coefficient of thermal expansion have a correlation with parameters such as the composition and the ceramic microstructure; wherein, the component can effectively adjust the related parameters. Further, the heat generating layer 12 may be made of titanium, zirconium, titanium-aluminum alloy, titanium-zirconium alloy, titanium-molybdenum alloy, titanium-niobium alloy, iron-aluminum alloy, tantalum-aluminum alloy, stainless steel, iron-nickel, nickel-chromium alloy, or the like. The porous substrate layer 111 and the porous fixed layer 112 may be at least one of porous alumina ceramic, porous cordierite ceramic, porous diatomaceous earth ceramic, and porous silicon carbide ceramic.

In some embodiments, the porosity of the porous matrix layer 111 is different from the porosity of the porous anchor layer 112 to achieve different conduction velocities. It will be appreciated that the rate of conduction of the liquid aerosol-generating substrate within the porous body 11 is directly related to the porosity, and that the rate of conduction may be varied by varying the porosity of the porous body 11.

The heating element 12 may be a heating film in some embodiments, and is made of a material of a heating material such as nichrome. The heating film can be formed on the atomizing surface 13 by printing to form a concave structure matched with the atomizing surface 13.

The heat generating body 12 may include a first electrode connection part 121, a second electrode connection part 122, and a heat generating part 123 disposed between the first electrode connection part 121 and the second electrode connection part 122 in some embodiments. The heat generating portion 123 has a large resistance, and can generate heat when a current flows therethrough. The first electrode connection part 121 and the second electrode connection part 122 have a small resistance, and are mainly used for electrical connection. The heat generating portion 123 may be elongated in some embodiments, and bent several times to be distributed as uniformly as possible on the bottom surface of the porous body 11, thereby achieving uniform distribution of heat, as shown in fig. 2.

As shown in fig. 2 and 3, fig. 2 and 3 show atomizing cores 1 according to other embodiments of the present invention, and the atomizing core 1 may be used as an alternative to the atomizing core 1.

The porous body 11 includes a porous base layer 111 and a porous fixing layer 112. The porous substrate layer 111 includes a substrate surface 1111 facing the porous fixation layer 112 and a first surface 1112 opposite the substrate surface 1111; the substrate surface 1111 has an inwardly concave arc structure, and is concavely formed along the direction of the first surface 1112 for the porous fixing layer 112 to be bonded thereon; the first surface 1112 serves as an absorption surface 14 for absorbing the liquid aerosol-generating substrate. The porous fixing layer 112 serves as a carrier for the heating element 12, and reliably fixes the heating element 12 on the porous body 11. The porous fixing layer 112 is in an arc structure matched with the surface 1111 of the substrate, and the thickness is uniform; it includes a bonding surface 1121 and an overlying surface 1122 opposite the bonding surface 1121.

The bonding surface 1121 is an arc surface and is formed by recessing in the direction of the liquid suction surface 14; the heating element 12 can be bonded to the bonding surface 1121 as the atomizing surface 13.

The stacking surface 1122 is a convex surface protruding toward the substrate surface 1111; which is opposite to the base surface 1111, is attached to the base surface 1111, and is integrally bonded to the base surface 1111 by sintering. The curvature of the stacking surface 1122 is adapted to the curvature of the substrate surface 1111. It is understood that the substrate surface 1111 may be a plane, a convex surface, etc. instead of the concave surface structure such as the circular arc surface. The shape of the stacking surface 1122 is adapted to the shape of the base surface 1111 to bond the porous fixing layer 112 to the porous base layer 111.

The heating element 12 is a heating film, and is formed on the arc surface by printing, thereby forming an arc structure adapted to the arc surface.

The circular arc surface comprises two opposite and parallel circular arc line segments 11211 and two opposite and parallel straight line segments 11212. The two ends of the two arc line segments 11211 are connected through the straight line segment 11212 to form an arc surface; the two straight line segments 11212 are parallel to the liquid-absorbing surface 14 and are at the same height with respect to the liquid-absorbing surface 14. The two circular arc line segments 11211 are provided on both sides of the porous body 11 in the longitudinal direction L, and the two straight line segments 11212 are provided on both ends of the porous body 11 in the longitudinal direction L.

In some embodiments, the radius of curvature of the radiused line segment 11211 is preferably between 5-12mm.

In some embodiments, the ends of the circular arc segment 11211 are preferably between 8-14mm apart.

In some embodiments, a first line segment formed by an end point of the circular arc line segment 11211 and a circle center corresponding to the end point is connected to a second line segment formed by a midpoint of the circular arc line segment 11211 and a circle center corresponding to the midpoint to form an included angle α. The included angle alpha is in the range of 20-40 deg..

It can be understood that, although the effective atomization area is increased along with the increase of the included angle α, and the liquid supply effect is also increased, the total length of the heating element 12 is increased along with the increase of the included angle α, and the temperature arrangement is also more dispersed; moreover, an excessive included angle α means that the atomizing surface 13 is more concave, so that the liquid aerosol-generating substrate is prone to leakage due to excessive liquid supply at the atomizing surface 13.

The following experimental data of the atomization amount, the taste, the service life and the temperature distribution change under different curvatures are obtained by using the curvature of the atomization surface as a variable through a variable control method. Please refer to table 1 in the next page.

Table 1

Referring to fig. 1, the utility model discloses still construct an atomizer, including stock solution storehouse, airflow channel and atomizing chamber, the atomizing chamber is located airflow channel's route, and the stock solution storehouse is used for storing aerosol and generates the matrix, including foretell atomizing core 1, atomizing core 1 is established in the atomizing chamber to the atomizing comes from the aerosol in stock solution storehouse and generates the matrix.

The utility model discloses still construct an electronic atomization device, including power and control circuit, including foretell atomizer, the power is connected with the heat-generating body 12 electricity of atomizer, and control circuit control power supply provides the electric energy for heat-generating body 12.

In some embodiments, the method of making the atomizing core comprises the steps of:

s1: providing a porous substrate comprising a non-planar substrate surface 1111; the substrate surface 1111 may include an inner concave surface such as a circular arc surface;

step S2: providing a flexible first assembly, wherein the first assembly comprises a heat generating layer blank body;

and step S3: the heat-generating layer blank body is opposite to the heat-generating layer, and the first combination body is superposed on the substrate surface 1111 to form a second combination body;

and step S4: sintering the second assembly.

It will be appreciated that the atomizing core 1 is formed after sintering of the second composition.

In some embodiments, step S1 comprises the steps of:

s11: forming a green body of the porous body 11 by injection molding, the green body comprising a non-planar surface;

s12: and sintering the blank in an air atmosphere.

It will be appreciated that the porous body 11 is formed after sintering of the green body.

Optionally, the material from which the body is made comprises a porous ceramic material. The sintering temperature range of the green body is 750-850 ℃; preferably 800 deg.c.

In some embodiments, step S2 comprises the steps of:

step S21: providing a flexible film strip comprising an attachment surface 1121 and an overlying surface 1122 opposite the attachment surface 1121;

step S22: a heating layer blank is formed on the bonding surface 1121 of the film tape to form a first assembly.

In some embodiments, the film strip is made using a casting process. The material of the membrane belt is the same as that of the porous matrix, so that the binding force between the membrane belt and the porous matrix is improved, and a better binding effect is obtained. It is noted that the membrane tape is flexible before sintering.

The heat-generating layer blank is formed on the film tape by means of silk-screen printing in some embodiments. Alternatively, a nickel-chromium alloy is printed on the film tape as the heat generating material to form a heat generating layer blank.

It can understand, the utility model discloses a silk screen printing forms the heating layer idiosome on the membrane area, combines the membrane area in the mode on base member surface 1111 again, has overcome the silk screen printing and can't form the defect of heating layer idiosome well on non-planar structure.

In some embodiments, the membrane strip is made of the same or different material as the porous substrate. When the manufacturing materials of the two are the same, better bonding force can be obtained.

In some embodiments, the membrane strip and the porous matrix are not of the same material to achieve different properties. In some embodiments, at least one of the composition, porosity, pore mean pore diameter, and pore D50 of the porous matrix layer 111 and the porous anchoring layer 112 are different.

In some embodiments, the first assembly is adhered to the substrate surface 1111 by an adhesive. Optionally, the adhesive comprises a glass bonding phase.

In some embodiments, the second assembly is sintered by means of vacuum sintering. The temperature range of the vacuum sintering is preferably 950-1050 ℃; more preferably 1000 deg.c.

It will be appreciated that after sintering of the second assembly to form the atomizing core 1, the porous matrix forms the porous matrix layer 111; the film tape forms a porous fixing layer 112, and the heat generating layer blank forms the heat generating body 12.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An atomizing core for an electronic atomizing device, the atomizing core comprising:

a porous body (11) comprising a non-planar atomising surface (13); and

and a heating element (12) which is joined to the atomization surface (13) and has a non-planar structure that fits the atomization surface (13).

2. The atomizing core according to claim 1, characterized in that the atomizing surface (13) comprises an inner concave surface; the heating body (12) is combined on the concave surface and is provided with a concave structure matched with the concave surface.

3. Atomizing core according to claim 1, characterized in that the atomizing surface (13) comprises a concave circular arc surface; the heating element (12) is combined on the arc surface and is provided with an arc structure matched with the arc surface.

4. The atomizing core of claim 3, wherein the radius of curvature of the arcuate surface is 5-12mm.

5. The atomizing core of claim 3, wherein the circular arc surface includes a circular arc segment (11211), and the distance between the two ends of the circular arc segment (11211) is 8-14mm.

6. Atomizing core according to claim 1, characterized in that the porous body (11) comprises a porous base layer (111) and a porous fixing layer (112);

the porous matrix layer (111) comprises a non-planar matrix surface (1111), the porous fixing layer (112) is superposed on the matrix surface (1111) and has a non-planar structure matched with the matrix surface (1111); the atomization surface (13) is formed on the surface of the porous fixing layer (112) opposite to the porous matrix layer (111).

7. The atomizing core of claim 6, wherein the porous matrix layer (111) and the porous fixing layer (112) differ in at least one of composition, coefficient of thermal expansion, porosity, pore mean pore diameter, and pore D50.

8. The atomizing core of claim 6, wherein the porous fixing layer (112) is of uniform thickness.

9. The atomizing core according to claim 6, characterized in that the heating body (12) is silk-screened on the surface of the porous fixing layer (112) opposite to the porous base layer (111).

10. An atomiser comprising a reservoir, an airflow passageway and an atomising chamber, the atomising chamber being located in the path of the airflow passageway, the reservoir being for storing an aerosol-generating substrate, comprising an atomising core according to any of claims 1 to 9, the atomising core being provided in the atomising chamber to atomise aerosol-generating substrate from the reservoir.

11. An electronic atomizer, comprising a power supply and a control circuit, characterized in that, comprising the atomizer of claim 10, the power supply is electrically connected with a heating element (12) of the atomizer, and the control circuit controls the power supply to provide electric energy for the heating element (12).