WO2024169408A1 - Atomizer and electronic atomization device - Google Patents

Abstract

An atomizer and an electronic atomization device. The atomizer (100) comprises: an e-liquid storage cavity used for storing an e-liquid matrix; a heating element (60) used for heating the e-liquid matrix to generate aerosol; and an air inlet (25a), an air suction port (111a), and an airflow channel. The aerosol is delivered to the air suction port (111a) by means of the airflow channel. The heating element (60) comprises a first surface and a second surface facing away from each other, and through holes (631) passing from the first surface to the second surface; the first surface is communicated with the e-liquid storage cavity or exposed out of the e-liquid storage cavity; the second surface is communicated with the airflow channel or exposed out of the airflow channel; the through holes (631) have such a hole diameter or width dimension feature that the heating element (60) can allow the aerosol to pass through the through holes (631) and prevent the e-liquid matrix from flowing through the through holes (631). By means of the through holes (631) of the heating element (60), the atomizer (100) provides a passage through which the aerosol passes from the first surface to the second surface and prevents the e-liquid matrix from flowing through. A power supply mechanism (200b) of the electronic atomization device comprises: a receiving cavity (270b) located at a proximal end (2110b), a support element (280b), and an induction coil (260b).

Description

Atomizer and electronic atomization device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese application filed with the China National Intellectual Property Administration on February 13, 2023, with application number 202310136905.0 and titled “Atomizer and Electronic Atomization Device,” the entire contents of which are incorporated by reference into this application.

Technical Field

The embodiments of the present application relate to the field of electronic atomization technology, and in particular to an atomizer and an electronic atomization device.

Background Art

Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

Examples of such products are electronic atomization devices. These electronic atomization devices generally contain a liquid that is heated to vaporize and thereby generate an inhalable aerosol; these devices have a liquid storage chamber that stores a liquid matrix, and a capillary liquid conducting element that receives and buffers the liquid matrix from the liquid storage chamber; and a heating element is coupled to the capillary liquid conducting element to heat at least a portion of the liquid matrix in the capillary liquid conducting element to generate an aerosol. In known electronic atomization devices, the capillary liquid conducting element prevents the liquid matrix in the liquid storage chamber from leaking.

Application Contents

An embodiment of the present application provides an atomizer, comprising:

A liquid storage chamber, used for storing a liquid matrix;

a heating element for heating the liquid matrix to generate an aerosol;

An air inlet, an air inlet, and an air flow channel between the air inlet and the air inlet; the air flow channel defines an air flow path from the air inlet via the heating element to the air inlet, so as to delivering the aerosol to the inhalation port;

The heating element comprises a first surface and a second surface which are separated from each other, and a through hole which runs from the first surface to the second surface; wherein the first surface is connected to the liquid storage cavity or exposed to the liquid storage cavity; and the second surface is connected to the air flow channel or exposed to the air flow channel;

The perforations have a pore size or width dimension characteristic that enables the heating element to allow aerosol to pass through the perforations and prevent liquid matrix from flowing through the perforations.

In some embodiments, the aperture or width of the through-holes is between 1 μm and 500 μm.

In some embodiments, the atomizer does not have a capillary liquid conducting element for transferring the liquid matrix from the liquid storage chamber to the heating element;

Alternatively, there is no capillary liquid conducting element combined with the heating element in the atomizer.

In some embodiments, the second surface of the heating element surrounds or defines a portion of the airflow channel.

In some embodiments, it also includes:

a partition wall configured to isolate the liquid storage chamber and the air flow channel;

The heating element is held on the partition wall.

In some embodiments, it also includes:

At least one flexible sealing element is positioned between the partition wall and the heating element for providing a seal therebetween.

In some embodiments, the partition wall is molded from a moldable material around at least a portion of the heating element and is coupled to the heating element.

In some embodiments, the partition wall is not removable or separable from the heating element.

In some embodiments, the perforations are arranged in an array such that the heating elements form a grid pattern.

In some embodiments, the heating element is an induction heating element that can be penetrated by a changing magnetic field and generate heat.

In some embodiments, the heating element is configured in a tubular shape; one of an outer surface and an inner surface of the heating element defines the first surface, and the other defines the second surface.

In some embodiments, the heating element is a planar extending heating element.

In some embodiments, it also includes:

The induction coil is used to generate a changing magnetic field; the axial length of the induction coil is less than the induction The length of the heating element should be.

In some embodiments, the heating element has a first end and a second end that are opposite to each other, and the heating element comprises:

a first portion, proximate said first end;

a second portion, proximate said second end;

The third part is located between the first part and the second part.

In some embodiments, the through holes are arranged in the third portion and avoid the first portion and the second portion.

In some embodiments, the atomizer holds the heating element within the atomizer by holding the first portion and/or the second portion.

Yet another embodiment of the present application provides an electronic atomization device, comprising the atomizer described above, and a power supply mechanism for supplying power to the atomizer.

Another embodiment of the present application further provides an electronic atomization device, comprising:

A liquid storage chamber, used for storing a liquid matrix;

Induction heating elements, which can be penetrated by the changing magnetic field and generate heat, thereby heating the liquid matrix to generate aerosol;

The induction coil is used to generate a changing magnetic field; the axial length of the induction coil is smaller than the length of the induction heating element.

In some embodiments, the induction coil surrounds a portion of the induction heating element.

In some embodiments, the induction coil is located inside the induction heating element and generates a changing magnetic field inside the induction heating element.

In some embodiments, the induction heating element has a first end and a second end opposite to each other, and the induction heating element comprises:

a first portion, proximate said first end;

a second portion, proximate said second end;

a third part, located between the first part and the second part;

The induction coil is opposite to the third portion and avoids the first portion and the second portion.

In some embodiments, the first portion and the second portion are dense;

The third part is provided with a plurality of through holes.

In some embodiments, the first portion and the second portion are non-receptive.

In some embodiments, the first part, the second part and the third part are independently prepared and then mechanically combined by riveting or the like. In some embodiments, the first part and the second part are independently prepared from heat-resistant ceramics or PEEK or other materials, and the third part is prepared from a sensitive metal or alloy.

In some embodiments, the electronic atomization device holds the heating element in the electronic atomization device by holding the first part and/or the second part.

In some embodiments, it also includes:

An air inlet, an air inlet, and an air flow channel located between the air inlet and the air inlet; the air flow channel defines an air flow path from the air inlet via the heating element to the air inlet to transfer the aerosol to the air inlet;

The heating element comprises a first surface and a second surface which are separated from each other, and a through hole which runs from the first surface to the second surface; wherein the first surface is connected to the liquid storage cavity or exposed to the liquid storage cavity; and the second surface is connected to the air flow channel or exposed to the air flow channel;

The perforations have a pore size or width dimension characteristic that enables the heating element to allow aerosol to pass through the perforations and prevent liquid matrix from flowing through the perforations.

In some embodiments, including:

A nebulizer, used to nebulize a liquid matrix to generate an aerosol;

Power supply mechanism, including:

A receiving chamber having an opening; in use, the atomizer can be at least partially removably received in the receiving chamber through the opening;

The liquid storage chamber and the induction heating element are arranged on the atomizer;

The induction coil is arranged on the power supply mechanism;

When the atomizer is received in the receiving cavity, the induction heating element can be penetrated by the changing magnetic field generated by the induction coil to generate heat.

In some embodiments, when the atomizer is received in the receiving cavity, the induction coil surrounds or encloses a portion of the induction heating element.

In some embodiments, when the atomizer is received in the receiving cavity, the induction coil is located inside the induction heating element and generates a changing magnetic field in the induction heating element.

In the above atomizer, the perforations of the heating element provide a passage for the aerosol to pass from the first surface to the second surface, and prevent the liquid matrix from flowing through.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

FIG1 is a schematic diagram of an electronic atomization device provided by an embodiment;

FIG2 is a schematic diagram of an embodiment of the atomizer in FIG1 ;

FIG3 is a schematic diagram of the heating element in FIG2 from another perspective;

FIG4 is a schematic diagram of another embodiment of the atomizer in FIG1 ;

FIG5 is an exploded schematic diagram of the partition element and the heating element in FIG4 before assembly;

FIG6 is a schematic diagram of an electronic atomization device provided by yet another embodiment;

FIG7 is a schematic diagram of the atomizer in FIG6 being received in the receiving cavity of the power supply mechanism;

FIG8 is a schematic diagram of a power supply mechanism of yet another embodiment;

FIG. 9 is an exploded schematic diagram of the various parts of a heating element in yet another embodiment before assembly.

DETAILED DESCRIPTION

In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

One embodiment of the present application provides an electronic atomization device for atomizing a liquid matrix to generate an aerosol. In some embodiments, the electronic atomization device may include two or more parts that are separated or replaced from each other, which, when combined, form a complete combined use state of the electronic atomization device and can generate an aerosol in response to a user's operation.

Further, FIG1 shows a schematic diagram of an electronic atomization device according to an embodiment. In this embodiment, the electronic atomization device comprises: an atomizer 100 for atomizing a liquid matrix to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer.

Further, as shown in FIG1 , the power supply mechanism 200 includes:

The proximal end 2110 and the distal end 2120 are opposed to each other in the longitudinal direction; in use, the proximal end 2110 is the end for receiving the nebulizer 100 .

Further, as shown in FIG1 , the power supply mechanism 200 further includes:

a receiving cavity 270 disposed adjacent to the proximal end 2110 and extending along the longitudinal direction of the power supply mechanism 200; Furthermore, the receiving cavity 270 has an opening along the longitudinal direction toward or located at the proximal end 2110 ; in use, the atomizer 100 can be received in the receiving cavity 270 through the opening, or removed from the receiving cavity 270 .

Further, as shown in FIG1 , the power supply mechanism 200 further includes:

A rechargeable battery cell 210 for outputting power; and the battery cell 210 is arranged near the distal end 2120;

The charging interface 240 is used to charge the rechargeable battery cell 210 ; and the charging interface 240 is arranged between the battery cell 210 and the distal end 2120 .

And in one embodiment, the DC supply voltage provided by the battery cell 210 is in the range of about 2.5V to about 9.0V, and the ampere of the DC current provided by the battery cell 210 is in the range of about 2.5A to about 20A.

Further, as shown in FIG1 , the power supply mechanism 200 further includes:

The circuit 220 is integrated or arranged on a circuit board such as a PCB board, and is used to control the operation of the power supply mechanism 200, and in particular, the circuit 220 controls the power output by the battery cell 210. In FIG. 1 , the circuit 220 is located between the battery cell 210 and the receiving cavity 270.

Further, as shown in FIG1 , the power supply mechanism 200 further includes:

The airflow sensor 250, such as a microphone/MEMS sensor, is used to sense the airflow flowing through the atomizer 100 when the user draws the atomizer 100; and the circuit 220 controls the battery 210 to output power according to the sensing result of the airflow sensor 250. In the embodiment shown in FIG1, the airflow sensor 250 is arranged to be located between the battery 210 and the receiving cavity 270. And in some other variant embodiments, the airflow sensor 250 can also be assembled, fastened or combined with a circuit board on which the circuit 220 is arranged. Or in some other variant embodiments, the airflow sensor 250 is supported and fixed in the power supply mechanism 200 by an independent supporting element such as a plastic bracket.

In some embodiments, the power supply mechanism 200 induces the atomizer 100 to heat the atomized liquid matrix by generating a changing magnetic field passing through the receiving cavity 270; specifically, an induction heating element may be arranged in the atomizer 100, and when the atomizer 100 is received in the receiving cavity 270, the changing magnetic field can penetrate and generate heat to heat the liquid matrix to generate an aerosol. Alternatively, in some embodiments, the power supply mechanism 200 provides a direct current to the resistive heating element in the atomizer 100 to heat the liquid matrix.

Further, as shown in FIG1 , the power supply mechanism 200 further includes:

The induction coil 260 is arranged around the receiving cavity 270;

The circuit 220 may include a capacitor, and the capacitor and the induction coil 260 form an LC resonant circuit or an LCC resonant circuit. For example, the circuit 220 drives the LC resonant circuit at a predetermined frequency. The oscillation forms an alternating current flowing through the induction coil 260, which in turn causes the induction coil 260 to generate a changing magnetic field that can penetrate the receiving cavity 270. In some embodiments, the frequency of the alternating current supplied to the induction coil 260 by the circuit 220 is between 80KHz and 2000KHz; more specifically, the frequency can be in the range of about 600KHz to 1500KHz.

And in some embodiments, the induction coil 260 is wound with a wire material with low resistivity, such as copper wire, silver wire, etc. And in some other embodiments, the induction coil 260 is wound with a Litz wire; Litz wire with multiple strands or multiple bundles of wires is more advantageous for carrying alternating current.

FIG2 further shows a schematic diagram of an atomizer 100 according to an embodiment, and the atomizer 100 according to the embodiment includes:

A first end 110 and a second end 120 that are opposite to each other in the longitudinal direction;

A housing extending between the first end 110 and the second end 120; the housing defines an outer surface of the atomizer 100; specifically, the housing includes:

The first housing 10 is close to and defines a first end 110; the second housing 20 is close to and defines a first end 120. The first housing 10 and the second housing 20 are configured to be hollow cylindrical; and the first housing 10 at least partially surrounds the second housing 20; and a flexible sealing element 30 is further arranged between the first housing 10 and the second housing 20 to provide a seal therebetween. The first housing 10 defines an inhalation port 111 at the first end 110 for a user to inhale.

Furthermore, the first housing 10 is provided with:

The first partition wall 11 extends in the longitudinal direction of the first housing 10; the first partition wall 11 and the first housing 10 are integrally molded, for example, molded from a polymer, ceramic or other material; and the first partition wall 11 extends from the air inlet 111 away from the first end 110. A first storage space 12 is defined between the first partition wall 11 and the first housing 10.

And, the second housing 20 is provided with:

The second partition wall 21 extends in the longitudinal direction of the second housing 20; and a second storage space 22 is defined between the second partition wall 21 and the second housing 20. And after assembly, the first partition wall 11 and the second partition wall 22 are longitudinally aligned and joined, and the first partition wall 11 and the second partition wall 22 are connected. And the gap between the first partition wall 11 and the second partition wall 22 is sealed by a sealing element 30.

After assembly, the first storage space 12 and the second storage space 22 are aligned and engaged. After assembly, the first storage space 12 and the second storage space 22 jointly define the liquid storage cavity. For storing liquid matrices.

Further according to the embodiment shown in FIG. 2 , the atomizer 100 further includes:

The heating element 60 is located in the second partition wall 22; and the heating element 60 is basically coaxially arranged with the second partition wall 22; and the heating element 60 extends in the longitudinal direction of the second partition wall 22. And, in this embodiment, the heating element 60 is an induction heating element that can be penetrated by a changing magnetic field and generate heat. The heating element 60 is made of a metal or alloy with sensitivity. For example, the heating element 60 can be made of stainless steel (SS430) of grade 430, and can also be made of stainless steel (SS420) of grade 420, and an alloy material containing iron and nickel (such as permalloy).

In some specific embodiments, the heating element 60 has a length of 2 mm to 15 mm; the heating element 60 has an inner diameter of 1.5 mm to 8 mm; and the partition wall thickness of the heating element 60 is between 0.05 mm and 0.2 mm. For example, in some specific embodiments, the heating element 60 has a length of 4 mm to 8 mm.

Alternatively, in some other embodiments, the heating element 60 may have a longer length; for example, the heating element 60 may extend from the first end 110 to the second end 120; and the heating element 60 may surround and define an air flow channel extending from the first end 110 to the second end 120.

Further, as shown in FIG. 3 , the heating element 60 is a tubular shape closed in the circumferential direction; and the heating element 60 has a first portion 61 and a second portion 62 distributed in the longitudinal direction, and a third portion 63 located between the first portion 61 and the second portion 62. The third portion 63 is arranged with a plurality of perforations 631 that penetrate the heating element 60 in the radial direction, so that the third portion 63 is basically in a mesh shape. The plurality of perforations 631 arranged in the array can reduce the mass of the heating element 60, which is conducive to improving the temperature raising efficiency of the third portion 63 during induction heating. There are no perforations 631 on the first portion 61 and the second portion 62, and the first portion 61 and the second portion 62 are dense. And in some embodiments, the length of the third portion 63 is greater than the length of the first portion 61 and/or the second portion 62; for example, in a specific embodiment, the length of the third portion 63 is 2.0 mm, and the length of the first portion 61 and/or the second portion 62 is 1.5 mm.

In some embodiments, the first part 61, the second part 62 and the third part 63 of the heating element 60 are made of the same material as a whole. For example, in some variant embodiments, the first part 61, the second part 62 and the third part 63 of the heating element 60 are made of different materials independently, and then assembled into a whole by mechanical means such as riveting. For example, FIG. 9 shows a schematic diagram of the first part 61, the second part 62 and the third part 63 of the heating element 60 before assembly in this embodiment. FIG. 6 shows a first part 61 and a second part 62 made of heat-resistant ceramic or PEEK, etc., and a third part 63 is sensitive for heating. In some embodiments, the first part 61 and the second part 62 are made of non-sensitive materials to reduce heat loss at the end, such as high-temperature resistant plastic injection molding, or non-sensitive metal materials to reduce the heating mass of the heating element 60 and improve efficiency; or the first part 61 and the second part 62 can also be made of other materials with low thermal conductivity.

And in this embodiment, the extension length of the induction coil 260 is 10 mm; the length of the heating element 60 is less than the length of the induction coil 260; then when the atomizer 100 is received in the receiving chamber 270, the heating element 60 is basically completely located in the induction coil 260. Or in some other variant embodiments, when the atomizer 100 is received in the receiving chamber 270, the heating element 60 may be partially located in the induction coil 260 and partially extended outside the induction coil 260, but it is preferred to keep the third portion 63 completely located inside the induction coil 260.

Alternatively, in some alternative embodiments, the extension length of the induction coil 260 is less than the length of the heating element 60; then, when the atomizer 100 is received in the receiving chamber 270, the induction coil 260 can only surround a portion of the heating element 60; for example, when the atomizer 100 is received in the receiving chamber 270, the induction coil 260 surrounds the third portion 63 of the heating element 60 and avoids the first portion 61 and the second portion 62.

As an exemplary embodiment, the atomizer 100 further includes:

a flexible sealing element 51 located between the first portion 61 of the heating element 60 and the second partition wall 21 to provide a seal therebetween;

A flexible sealing element 52 is positioned between the second portion 62 of the heating element 60 and the second partition wall 21 to provide a seal therebetween.

As an optional example, the sealing element 51 and/or the sealing element 52 are made of flexible silicone or thermoplastic elastomer, or made of flexible materials with liquid retention ability, such as flexible porous materials or fiber materials. After assembly, the heating element 60 is elastically retained in the second partition wall 21 by the sealing element 51 and the sealing element 52. In addition, the sealing element 51 and the sealing element 52 provide isolation in the heating element 60 and the second partition wall 21, so that a spacing space 40 is formed between the heating element 60 and the second partition wall 21; and the two sides of the spacing space 40 are sealed by the sealing element 51 and the sealing element 52 respectively.

Furthermore, a connecting hole 211 is provided on the second partition wall 21 and runs through in the radial direction. The connecting hole 211 is aligned with the partition space 40 . Thus, in use, the liquid matrix in the liquid storage chamber can enter the partition space 40 through the connecting hole 211 and surround and contact the outer surface of the heating element 60 .

Or in some other variant embodiments, the above heating element 60 and the second partition wall 21 of the second shell 20 are formed integrally; for example, the heating element 60 made of metal and the second shell 20 made of plastic are integrally molded by so-called "metal insert injection molding", so that the second partition wall 21 of the second shell 20 surrounds and couples to the first part 61 and the second part 62 of the heating element 60 and avoids the third part 63, so that the heating element 60 is tightly combined with the second partition wall 21. Molding the heating element 60 and the second partition wall 21 as an integral structure is conducive to maintaining the consistency of the heating element 60 assembled into the shell, improving the overlap of the relative positions of the induction coil 260 and the heating element 60, for example, the overlap of the central axis, thereby improving the induction heating efficiency.

During inhalation, air enters through the air inlet 25 on the second housing 20, passes through the tubular heating element 60, and is output to the air inlet 111 through the second partition wall 21 and the first partition wall 11 in sequence. In use, the heating element 60, the second partition wall 21, and the first partition wall 11 together surround and define an air flow channel passing through the atomizer 100 during inhalation.

In some embodiments, the outer surface of the heating element 60 is directly exposed and in contact with the liquid matrix, especially the outer surface of the third portion 63 is directly exposed and in contact with the liquid matrix; and there is no capillary conduction element for transferring the liquid matrix between the heating element 60 and the liquid storage chamber, such as fiber cotton, sponge, porous ceramic body, etc.; after assembly, the liquid outlet of the liquid storage chamber is covered or closed by the heating element 60. And there is no capillary conduction element for transferring the liquid matrix from the liquid storage chamber to the heating element 60 in the atomizer 100.

Furthermore, the inner surface of the heating element 60 is exposed to the air flow passage, in particular, the inner surface of the third portion 63 is exposed to the air flow passage.

And in some embodiments, the perforations 631 of the third portion 63 have such aperture or width size characteristics that the liquid matrix can be prevented from flowing through the perforations 631, while the aerosol generated by heating and atomizing the liquid matrix can flow through the perforations 631. Furthermore, in some embodiments, the perforations 631 can release the aerosol into the airflow channel while preventing liquid leakage.

In some implementations, the perforation 631 is usually in the shape of a tiny circle or a regular polygon, etc.; or in some other implementations, the perforation 631 can also be a rectangle, a polygon, or an irregular shape such as an elongated slit, etc.

Specifically, in some specific embodiments, the diameter or width of the perforation 631 is between 1 μm and 500 μm. Or further, the diameter or width of the perforation 631 is between 5 μm and 250 μm; or further, the diameter or width of the perforation 631 is between 10 μm and 150 μm; or further, The diameter or width of the perforation 631 is between 20 μm and 60 μm. The perforation 631 having the above diameter range can prevent the liquid matrix from flowing through and allow the aerosol to flow through.

And in the above embodiment, the perforations 631 are arranged in an array; the perforations 631 have a shape of an array arrangement so that the third portion 63 and/or the heating element 60 form a grid pattern.

FIG4 further shows a schematic diagram of an atomizer 100 of another embodiment; in this embodiment, the atomizer 100 comprises:

A first end 110a and a second end 120a that are opposite to each other in a longitudinal direction;

The housing is defined by the first shell 10a and the second shell 20a; the first shell 10a is close to and defines the first end 110a; the second shell 20a is close to and defines the first end 120a.

Furthermore, a flexible sealing element 30a is arranged between the first housing 10a and the second housing 20a to provide a seal therebetween. The first housing 10a defines an inhalation port 111a at the first end 110a for a user to inhale.

And, a first partition wall 11a is disposed in the first shell 10a, and a first storage space 12a is defined between the first partition wall 11a and the first shell 10a;

The second housing 20a is provided with:

The partition element 21a extending in the longitudinal direction defines the space in the second shell 20a to form a second storage space 22a and a passage space 23a located at the inner and outer sides of the partition element 21a respectively.

After assembly, the second storage space 22a is connected to the first storage space 12a, and the second storage space 22a and the first storage space 12a jointly define a liquid storage chamber in the atomizer 100 to store liquid matrix. In addition, the channel space 23a is connected to the hollow of the first partition wall 11a, and the channel space 23a and the first partition wall 11a form an air flow channel between the air inlet 25a and the air inlet 111a to output aerosol.

Further as shown in Figures 4 and 5, the partition element 21a has a partition wall 211a extending basically straight, and the second storage space 22a and the channel space 23a are defined by both sides of the partition wall 211a; and, the partition wall 211a has a window 212a; the sheet-like heating element 60a is combined with the partition wall 211a by insert injection molding, etc., and covers or crosses the window 212a.

In this embodiment, the sheet-shaped heating element 60a has a length of about 3 mm to 8 mm; the heating element 60a has a width of about 1.5 mm to 5 mm; and the thickness of the heating element 60a is between 0.05 mm and 0.2 mm. Alternatively, the heating element 60a is a planar heating element.

Specifically, the heating element 60a has an edge portion 61a and a central portion surrounded by the edge portion 61a. In some embodiments, the partition wall 211a and/or the partition element 21a are injection molded around the edge portion 61a by a moldable material and coupled to the edge portion 61a. The central portion 63a has a plurality of through holes 631a. The heating element 60a and the partition wall 211a are not removable or separable; and the heating element 60a is at least partially embedded in the partition wall 211a.

In some embodiments, when the atomizer 100 is received in the receiving chamber 270 , the heating element 60 a is at least partially located in the induction coil 260 ; specifically, the central portion 63 a is located in the induction coil 260 for generating heat.

After assembly, the first side surface of the heating element 60a is exposed to the liquid storage cavity or the second storage space 22a, and the diameter of the perforation 631a can prevent the liquid matrix from flowing through; the second side surface of the heating element 60a is exposed to the channel space 23a or the airflow channel, so as to release the aerosol passing through the perforation 631a to the airflow channel.

And in some embodiments, the perforation 631a has such a width dimension feature that the liquid matrix can be prevented from flowing through the perforation 631a, while the aerosol generated by heating and atomizing the liquid matrix can flow through the perforation 631a. Furthermore, in some embodiments, the perforation 631a can prevent liquid leakage while releasing the aerosol into the airflow channel.

Specifically, in some specific embodiments, the diameter of the perforation 631a is between 1 μm and 500 μm. Or further, the diameter of the perforation 631a is between 5 μm and 250 μm; or further, the diameter of the perforation 631a is between 10 μm and 150 μm; or further, the diameter of the perforation 631a is between 20 μm and 60 μm. The perforation 631a having the above diameter range can prevent the flow of liquid matrix and allow aerosol to flow through.

Or in some other variations, the heating element 60 a may also be configured to be arranged perpendicular to the longitudinal direction of the atomizer 100 .

Further, FIG6 and FIG7 show schematic diagrams of an electronic atomization device according to another embodiment. In this embodiment, an atomizer 100b of the electronic atomization device includes:

The housing 10b has an air inlet 111b at a first end;

The partition wall 11b extends in the longitudinal direction of the housing 10b; and the partition wall 11b at least partially defines an air flow channel passing through the atomizer 100b so as to output the aerosol to the inhalation port 111b;

The liquid storage chamber 12b is located in the housing 10b and is arranged around the partition wall 11b; the liquid storage chamber 12b is used to store the liquid matrix;

The heating element 60b is constructed in the shape of a mesh tube and is combined with the partition by molding or embedding. In some other embodiments, the heating element 60b may have a longer length, such as at least 10 mm, or at least 20 mm, so that the liquid storage chamber 12b is defined between the heating element 60b and the housing 10b without the partition wall 11b.

In this embodiment, the power supply mechanism 200b of the electronic atomization device includes:

having a receiving cavity 270b at a proximal end 2110b;

The support element 280b at least partially extends in the receiving cavity 270b; the support element 280b may be configured to be in the shape of a longitudinal pin or a needle;

The induction coil 260b is wound around or around and held outside the support element 280b.

When the atomizer 100b is received in the receiving cavity 270b, at least a portion of the induction coil 260b can extend into the heating element 60b to generate a changing magnetic field in the heating element 60b.

And in this embodiment, the axial length d2 of the induction coil 260b is less than the length d1 of the heating element 60b; in the heating process, the magnetic field energy generated by the induction coil 260b is more concentrated, and the magnetic field is basically located in the heating element 60b; it is beneficial to improve the utilization of magnetic energy and reduce magnetic leakage. For example, the axial length d2 of the induction coil 260b is approximately equal to the axial length of the third part with a perforation on the heating element 60b. For example, in some specific embodiments, the length d1 of the heating element 60b is 6mm; the axial length d2 of the induction coil 260b is 3mm.

In this embodiment, the heating element 60b is integrally molded with the partition wall 11b of the atomizer 100b by metal insert injection molding or the like. The heating element 60b may be a mesh tube. The outer surface of the heating element 60b is exposed to the liquid storage chamber 12b, and the inner surface is exposed to the air flow channel.

Alternatively, FIG8 shows a schematic diagram of a power supply mechanism 200c of another embodiment, and the power supply mechanism 200c of this embodiment includes:

a receiving cavity 270c, located at the proximal end 2110c;

The support element 280c at least partially extends in the receiving cavity 270c; the support element 280c may be configured to be in the shape of a longitudinal pin or needle; and the support element 280c defines a hollow 281c extending in the longitudinal direction;

The induction coil 260c is used to generate a changing magnetic field; and the induction coil 260c is accommodated and held in the hollow 281c of the supporting element 280c.

It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes according to the above description, and all such improvements and changes shall be deemed as The invention shall be within the scope of protection of the claims attached to this application.

Claims (20)

An atomizer, characterized by comprising: A liquid storage chamber, used for storing a liquid matrix; a heating element for heating the liquid matrix to generate an aerosol; An air inlet, an air inlet, and an air flow channel located between the air inlet and the air inlet; the air flow channel defines an air flow path from the air inlet via the heating element to the air inlet to transfer the aerosol to the air inlet; The heating element comprises a first surface and a second surface which are separated from each other, and a through hole which runs from the first surface to the second surface; wherein the first surface is connected to the liquid storage cavity or exposed to the liquid storage cavity; and the second surface is connected to the air flow channel or exposed to the air flow channel; The perforations have a pore size or width dimension characteristic that enables the heating element to allow aerosol to pass through the perforations and prevent liquid matrix from flowing through the perforations. The atomizer according to claim 1, characterized in that the aperture or width of the perforation is between 1 μm and 500 μm. The atomizer according to claim 1 or 2, characterized in that there is no capillary liquid conducting element in the atomizer for transferring the liquid matrix from the liquid storage chamber to the heating element; Alternatively, there is no capillary liquid conducting element combined with the heating element in the atomizer. The atomizer according to claim 1 or 2, characterized in that the second surface of the heating element surrounds or defines a portion of the airflow channel. The atomizer according to claim 1 or 2, further comprising: a partition wall configured to isolate the liquid storage chamber and the air flow channel; The heating element is held on the partition wall. The atomizer according to claim 5, further comprising: At least one flexible sealing element is located between the partition wall and the heating element to to provide a seal therebetween. The atomizer of claim 5, wherein the partition wall is formed by molding a moldable material around at least a portion of the heating element and is coupled to the heating element. The atomizer according to claim 7, characterized in that the partition wall and the heating element are not removable or separable. The atomizer according to claim 1 or 2, characterized in that the perforations are arranged in an array so that the heating element forms a grid pattern. The atomizer according to claim 1 or 2, characterized in that the heating element is an induction heating element that can be penetrated by a changing magnetic field to generate heat. The atomizer according to claim 1 or 2, characterized in that the heating element is configured in a tubular shape; one of the outer surface and the inner surface of the heating element defines the first surface, and the other defines the second surface. The atomizer according to claim 1 or 2, characterized in that the heating element is a planar extending heating element. The atomizer according to claim 10, further comprising: The induction coil is used to generate a changing magnetic field; the axial length of the induction coil is smaller than the length of the induction heating element. The atomizer according to claim 1 or 2, characterized in that the heating element has a first end and a second end opposite to each other, and the heating element comprises: a first portion, proximate said first end; a second portion, proximate said second end; The third part is located between the first part and the second part; the through hole is arranged in the third part and avoids the first part and the second part. The atomizer according to claim 14, characterized in that the atomizer holds the heating element in the atomizer by holding the first part and/or the second part. An electronic atomization device comprises the atomizer according to any one of claims 1 to 15, and a power supply mechanism for supplying power to the atomizer. An electronic atomization device, characterized by comprising: A liquid storage chamber, used for storing a liquid matrix; Induction heating elements, which can be penetrated by the changing magnetic field and generate heat, thereby heating the liquid matrix to generate aerosol; The induction coil is used to generate a changing magnetic field; the axial length of the induction coil is smaller than the length of the induction heating element. The electronic atomization device as described in claim 17 is characterized in that the induction coil surrounds a portion of the induction heating element. The electronic atomization device as described in claim 17 is characterized in that the induction coil is located inside the induction heating element and generates a changing magnetic field inside the induction heating element. The electronic atomization device according to any one of claims 17 to 19, characterized in that it comprises: A nebulizer, used to nebulize a liquid matrix to generate an aerosol; Power supply mechanism, including: A receiving chamber having an opening; in use, the atomizer can be at least partially removably received in the receiving chamber through the opening; The liquid storage chamber and the induction heating element are arranged on the atomizer; The induction coil is arranged on the power supply mechanism; When the atomizer is received in the receiving cavity, the induction heating element can be penetrated by the changing magnetic field generated by the induction coil to generate heat.