CN117617577A - Atomizer, electronic atomization device and atomization assembly for atomizer - Google Patents

Abstract

The application provides an atomizer, an electronic atomization device and an atomization assembly for the atomizer; wherein, the atomizer includes: a liquid storage cavity; a porous body having a first surface and a second surface; wherein the first surface is for receiving a liquid matrix; the second surface defines a cavity thereon; a heating element at least partially housed or held within the cavity for heating the liquid matrix to generate an aerosol; the heating element comprises: a heating section for heating the liquid substrate; and a first electrical connection portion and a second electrical connection portion for conducting an electrical current over the heating portion; at least one spacing space is formed between the porous body and the heating portion to reduce heat transfer from the heating portion to the porous body. In the above atomizer, at least one space is formed between the porous body and the heating portion of the heating element, which is advantageous in preventing heat transfer from the heating portion to the porous body.

Description

Atomizers, electronic atomization devices and atomization components for atomizers

Technical field

Embodiments of the present application relate to the technical field of electronic atomization, and in particular, to an atomizer, an electronic atomization device, and an atomization assembly for the atomizer.

Background technique

Smoking products (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by creating products that release compounds without burning them.

Examples of such products are heating devices that release compounds by heating rather than burning the material. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there are aerosol-providing articles, such as so-called vaping devices. These devices typically contain a liquid that is absorbed by a porous ceramic body and heated by resistive heating tracks formed on the surface of the porous ceramic body so that it vaporizes, thereby producing an inhalable aerosol.

Contents of the invention

One embodiment of the present application provides an atomizer, including:

Liquid storage chamber for storing liquid matrix;

A porous body having a first surface and a second surface; wherein the first surface is in fluid communication with the liquid storage chamber to receive a liquid matrix; the second surface defines a cavity;

a heating element, accommodated or retained in the cavity, for heating a liquid substrate to generate an aerosol; the heating element includes: a heating portion for heating the liquid substrate; and a first electrical connection portion and a second electrical connection portion for conducting electrical current on said heating portion;

At least one spacing space is formed between the porous body and the heating part and is arranged at least partially around the heating part in the circumferential direction of the heating element to reduce the transfer of heat from the heating part to the porous body. transfer.

In a preferred implementation, the heating element is independently prepared and then assembled in the cavity; or, the heating element is not formed in the cavity by printing, printing, deposition or spraying.

In a preferred implementation, the heating element is porous; one of the surfaces of the heating element is in contact with the porous body for sucking liquid from the porous body and heating the sucked liquid matrix.

In a preferred implementation, the area of contact between the heating part and the porous body is less than 25% of the outer surface area of the heating part.

In a preferred implementation, the heating element has a length, a width and a height; the length direction of the heating element is parallel to the length direction of the second surface, and the width direction of the heating element is parallel to the length direction of the second surface. Width direction: The height of the heating element is greater than the width, so that the heating element basically stands instead of lying flat in the cavity.

In a preferred implementation, it also includes:

A first electrode is conductively connected to the first electrical connection part; a second electrode is conductively connected to the second electrical connection part; in use, power is supplied to the heating element through the first electrode and the second electrode. ;

The first electrode is at least partially located on the second surface and at least partially covers the first electrical connection portion; the second electrode is at least partially located on the second surface and at least partially covers the second electrical connection. part.

In a preferred implementation, the first electrode and/or the second electrode are configured to provide retention of the heating element at least partially on the second surface to prevent the heating element from falling out of the cavity. Or leave.

In a preferred implementation, the heating element is porous;

The first electrode and/or the second electrode are at least partially immersed or penetrated into the pores of the first electrical connection part; and/or the second electrode is at least partially immersed or infiltrated into the pores of the second electrical connection part Inside.

In a preferred implementation, the first electrode and/or the second electrode are formed by sintering or solidifying conductive paste;

The first electrode and/or the second electrode at least partially penetrate between the heating element and the porous body to connect and tighten the heating element and the porous body.

In a preferred implementation, the heating element is at least partially exposed to the second surface.

In a preferred implementation, the heating element has a liquid absorbing surface facing away from the second surface; the liquid absorbing surface is against or in contact with the porous body for absorbing the liquid matrix from the porous body. .

In a preferred implementation, the heating part is suspended within the cavity.

In a preferred implementation, there is substantially no gap or spacing between the first electrical connection portion and/or the second electrical connection portion and the porous body.

In a preferred implementation, the second surface has a first side end and a second side end that are away from each other along the length direction;

The cavity includes a first section proximate the first side end, a second section proximate the second side end, and a third section located between the first section and the second section;

The width dimension of the third section is greater than the width dimension of one or both of the first section and the second section;

The at least one gap space is defined between the inner surface of the third section and the heating portion.

In a preferred implementation, said heating element spans said third section.

Another embodiment of the present application also provides an atomizer, including:

Liquid storage chamber for storing liquid matrix;

a heating element extending along the longitudinal direction of the atomizer for heating the liquid matrix to generate an aerosol;

A porous body extending in the longitudinal direction of the atomizer and at least partially surrounding the heating element for at least partially transferring a liquid matrix between the liquid storage chamber and the heating element;

The heating element has a first end and a second end that are away from each other in a longitudinal direction; the heating element includes: a first electrical connection portion near the first end, a second electrical connection portion near the second end, and a heating portion located between the first electrical connection portion and the second electrical connection portion; the first electrical connection portion and the second electrical connection portion are used to conduct current on the heating element; the heating a heating zone that partially defines a heated liquid substrate;

At least one spacing space is formed between the porous body and the heating part to reduce heat transfer from the heating part to the porous body.

Another embodiment of the present application also proposes an electronic atomization device, including an atomizer that atomizes a liquid matrix to generate an aerosol, and a power supply mechanism that supplies power to the atomizer; the atomizer includes the above of atomizer.

Another embodiment of the present application also provides an atomization assembly for an atomizer, including:

A porous body having at least a first surface and a second surface; wherein the first surface is configured to receive a liquid matrix; the second surface defines a cavity;

A heating element, at least partially contained or retained in the cavity, for heating a liquid substrate to generate an aerosol; the heating element includes:

a heating portion for heating a liquid substrate; and first and second electrical connection portions for conducting electrical current on said heating portion;

At least one spacing space is formed between the porous body and the heating part to reduce heat transfer from the heating part to the porous body.

In the above atomizer, at least one spacing space partially surrounding the heating part is formed between the porous body and the heating part of the heating element, which is advantageous for preventing the heat from the heating part from being transferred to the porous body.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings. These illustrative illustrations do not constitute limitations to the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings are not intended to be limited to scale.

Figure 1 is a schematic diagram of an electronic atomization device provided by an embodiment;

Figure 2 is a schematic diagram of an embodiment of the atomizer in Figure 1;

Figure 3 is a schematic diagram of the atomization component in Figure 2 from one perspective;

Figure 4 is an exploded schematic diagram of each part of the atomization assembly in Figure 3;

Figure 5 is a schematic cross-sectional view of the atomization component in Figure 2 from one perspective;

Figure 6 is a schematic cross-sectional view of an atomizer assembly according to another embodiment;

Figure 7 is a schematic diagram of a porous body according to another embodiment;

Figure 8 is a schematic structural diagram of an atomizer according to another embodiment;

Figure 9 is a schematic cross-sectional view of the atomization component in Figure 8 from another perspective;

Figure 10 is a schematic diagram of an atomization assembly according to yet another embodiment;

Figure 11 is a schematic cross-sectional view of the atomization assembly of Figure 10 from another perspective.

Detailed ways

In order to facilitate understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

This application proposes an electronic atomization device, as shown in FIG. 1 , including an atomizer 100 that stores a liquid substrate and vaporizes it to generate an aerosol, and a power supply assembly 200 that supplies power to the atomizer 100 .

In an optional implementation, such as shown in FIG. 1 , the power supply assembly 200 includes a receiving cavity 270 disposed at one end along the length direction for receiving and accommodating at least a portion of the atomizer 100 , and at least a portion of the receiving cavity is exposed in the receiving cavity 270 . The first electrical contact 230 on the surface 270 is used to power the atomizer 100 when at least a portion of the atomizer 100 is received and contained within the power supply assembly 200 .

According to the exemplary embodiment shown in FIG. 1 , a second electrical contact 21 is provided on the end of the atomizer 100 opposite to the power assembly 200 along the length direction, so that when at least a portion of the atomizer 100 is received in the receiving cavity 270 When inside, the second electrical contact 21 is in contact with the first electrical contact 230 to conduct electricity.

A seal 260 is provided inside the power supply assembly 200 , and at least a portion of the internal space of the power supply assembly 200 is separated by the seal 260 to form the above receiving cavity 270 . In the exemplary embodiment shown in FIG. 1 , the seal 260 is configured to extend along the cross-sectional direction of the power supply assembly 200 , and is preferably made of a flexible material, thereby preventing the atomizer 100 from seeping into the receiving cavity 270 The liquid matrix flows to the controller 220, sensor 250 and other components inside the power supply assembly 200.

In the exemplary embodiment shown in FIG. 1 , the power supply assembly 200 further includes a battery core 210 for power supply at the other end away from the receiving cavity 270 along the length direction; and a controller disposed between the battery core 210 and the receiving cavity. 220 , the controller 220 is operable to direct current between the cell 210 and the first electrical contact 230 .

In use, the power supply assembly 200 includes a sensor 250 for sensing the suction airflow generated by the atomizer 100 when suctioning, and then the controller 220 controls the battery core 210 to output to the atomizer 100 based on the detection signal of the sensor 250 current.

Further in the exemplary embodiment shown in FIG. 1 , the power supply assembly 200 is provided with a charging interface 240 at the other end away from the receiving cavity 270 for charging the battery core 210 .

The embodiment of Figure 2 shows a schematic structural diagram of an embodiment of the atomizer 100 in Figure 1, including:

Main housing 10; as shown in Figure 2, the main housing 10 is generally in the shape of a longitudinal cylinder, and of course its interior is hollow with necessary functional components for storing and atomizing liquid substrates; the main housing 10 has a structure along the length direction Opposite proximal end 110 and distal end 120; wherein, according to the requirements of normal use, the proximal end 110 is configured as an end for the user to inhale aerosol, and the proximal end 110 is provided with a suction nozzle A for the user to inhale; and The remote end 120 is used as the end coupled with the power supply assembly 200 .

Referring further to FIG. 2 , the interior of the main housing 10 is provided with a liquid storage chamber 12 for storing a liquid substrate, and an atomization assembly for sucking the liquid substrate from the liquid storage cavity 12 and heating the atomized liquid substrate. Among them, in the schematic diagram shown in Figure 2, the main housing 10 is provided with an aerosol transmission tube 11 arranged along the axial direction. The space between the aerosol transmission tube 11 and the inner wall of the main housing 10 is formed for storing liquid. The liquid storage chamber 12 of the matrix; the first end of the aerosol transmission tube 11 relative to the proximal end 110 is connected to the mouth A of the mouthpiece, thereby transmitting the generated aerosol to mouth A of the mouthpiece for sucking.

Further, in some optional implementations, the aerosol transmission tube 11 and the main housing 10 are integrally molded using a moldable material, and the liquid storage chamber 12 formed after preparation is open toward the distal end 120 .

Referring further to FIG. 2 and FIG. 3 , the atomizer 100 further includes an atomizing component for atomizing at least part of the liquid matrix to generate an aerosol. Specifically, the atomization assembly includes a porous body 30; and a heating element 40 that absorbs the liquid matrix from the porous body 30 and performs heating and vaporization. And in some embodiments, the porous body 30 can be made of rigid capillary elements such as porous ceramics, porous glass ceramics, porous glass, etc. Or in some implementations, the porous body 30 includes capillary elements with capillary channels inside capable of absorbing and transferring a liquid matrix.

The above-mentioned atomization component is accommodated and maintained in the sealing element 20, and the atomization component is the porous body 30 which is in fluid communication with the liquid storage chamber 12 through the liquid conduction channel 13 defined by the sealing component 20 to receive the liquid matrix. During use, as shown by arrow R1 in Figure 2, the liquid in the liquid storage chamber 12 flows to the atomization component through the liquid guide channel 13 and is absorbed and heated; Mouth A is sucked by the user, as shown by arrow R2 in Figure 2.

Referring further to Figures 3 to 5, the specific structure of the atomization assembly includes:

The porous body 30 has opposite surfaces 310 and 320; after assembly, the surface 310 faces the liquid storage chamber 12 and is in fluid communication with the liquid storage chamber 12 through the liquid conduction channel 13 to absorb the liquid matrix; the surface 320 is Away from the liquid storage chamber 12.

In some implementations, the porous body 30 is prepared by mixing raw material powder, such as ceramic powder, with a pore-forming agent, followed by molding and sintering. Furthermore, the micropores in the porous body 30 are formed by sintering the pore-forming agent. Furthermore, the average pore diameter of the micropores in the porous body 30 is 15 to 50 μm. Furthermore, the porosity of the porous body 30 is 35 to 75%. The material of the porous body 30 includes at least one of alumina, zirconia, magnesium oxide, calcium oxide, silica, cordierite, and the like.

In this embodiment, the porous body 30 is generally in the shape of a sheet, a plate, or a block, and has two side surfaces with opposite thickness directions as the surface 310 and the surface 320 respectively. Or in more embodiments, the porous body 30 may have more shapes, such as arch, cup, groove, etc. shapes. Or for example, Chinese patent application CN215684777U provides details about the shape of the arched porous body with internal channels, and the configuration of the porous body to absorb the liquid matrix and atomize the liquid matrix. The full text of the above document is incorporated herein by reference.

And further referring to FIGS. 3 to 5 , suitable materials for the heating element 40 of the atomization assembly may be resistive metals or alloys, metals or alloys with good magnetic conductivity, carbon materials, conductive ceramics and other electrothermal materials. At least one. In some examples, the heating element 40 is a porous material. During the preparation process, the heating element 40 can be formed with micropores by pore-forming agents, mechanical foaming, etc., so that the heating element 40 has micropores inside; The heating element 40 can further absorb and heat the liquid matrix originating from the porous body 30 by contacting the porous body 30 . In some specific implementations, the micropores in the heating element 40 are distributed in the heating element 40 in a three-dimensional connected manner, or the micropores in the heating element 40 are disordered.

In some specific implementations, the micropores of the heating element 40 range from 5 to 90%; more preferably, the micropores of the heating element 40 range from 25 to 80%; more preferably, the micropores of the heating element 40 The porosity ranges from 30 to 75%. And in some specific implementations, the average pore diameter of the micropores in the heating element 40 is between 1 and 200 μm; more preferably, the average pore diameter of the micropores in the heating element 40 is between 30 and 100 μm; more preferably, the micropores in the heating element 40 are The average hole diameter is 50-80 μm, which is advantageous for controlling the resistance value of the heating element 40 to be between 0.1-10 ohms.

And further according to FIGS. 3 to 5 , the heating element 40 is configured as an elongated column, block, rod or rod; according to the exemplary embodiment shown in the figures, the heating element 40 is a square column. shape.

In some examples of the porous body 30, its surface 320 has a length dimension of approximately 8 to 15 mm and a width dimension of approximately 3 to 8 mm. In some examples of porous body 30, surface 320 is provided with grooves or cavities 321 within which heating element 40 is assembled and retained.

And in this implementation, the above-mentioned groove or cavity 321 penetrates the porous body 30 along the length direction; the surface 320 has a first side end and a second side end that are away from each other along the length direction; the groove or cavity 321 includes a A section 3210 at the first side end, a section 3230 near the second side end, and a section 3220 between section 3210 and section 3230. As shown in FIGS. 3 to 5 , section 3210 extends to or terminates at the first side end, and section 3230 extends to or terminates at the second side end.

And in implementation, the length dimension d11 of the heating element 40 may have about 6 to 12 mm, the width dimension d12 of the heating element 40 may have about 1 to 4 mm, and the height dimension d13 of the heating element 40 may have about 2 to 6 mm; and the heating element The height dimension d13 of the heating element 40 is larger than the width dimension d12 of the heating element 40 , so that the heating element 40 is in an upright or standing state instead of lying flat when held in the groove or cavity 321 . Or in more varied embodiments, the heating element 40 may also have a cylindrical shape or a prism shape with a polygonal cross-section.

And in implementation, the above-mentioned section 3210 and section 3230 of the groove or cavity 321 approximately have a width dimension d24 that is the same as the width dimension d12 of the heating element 40, for example, the section 3210 and the section 3230 of the groove or cavity 321. The width dimension d24 of the section 3230 is approximately 1 to 4 mm. The width dimension d23 of the section 3220 is larger than the width dimension of the section 3210/section 3230/heating element 40; as an implementation example, the width dimension d23 of the section 3220 is approximately 3 to 6 mm.

And, the length dimension d21 of the section 3220 is smaller than the length dimension d11 of the heating element 40; and the length dimension d21 of the section 3220 can be about 4 to 10 mm; then after assembly, the heating element 40 spans the area along the length direction. Section 3220. And after assembly, the heating element 40 extends from section 3210 to section 3230.

As an exemplary embodiment, heating element 40 includes:

The electrical connection portion 41 is adjacent to and defines the first end in the length direction of the heating element 40;

The electrical connection portion 42 is adjacent to and defines the second lengthwise end of the heating element 40;

The heating part 43 is located between the electrical connection part 41 and the electrical connection part 42;

During assembly, the electrical connection portion 41 is received and retained within the section 3210 of the recess or cavity 321, and the electrical connection section 42 is received and retained within the section 3230 of the recess or cavity 321; and, heating Portion 43 is received and retained within section 3220 of groove or cavity 321 .

And after assembly, the heating element 40 is flush with the surface 320 of the porous body 30 or 1 to 2 mm lower than the surface 320 . Also, the heating element 40 is at least not protruding relative to the surface 320 .

And after assembly, there is no contact between the inner surface of the section 3220 and the side surface of the heating part 43 of the heating element 40; there is a gap space 322 between the inner surface of the section 3220 and the side surface of the heating part 43, and the gap is The width of the space 322 is approximately 1 to 2 mm. The spacing space 322 is defined on both sides of the width direction of the heating portion 43 of the heating element 40 to provide a space for the heating element 40 to release aerosol.

As further shown in FIG. 5 , the depth of the groove or cavity 321 is substantially constant along the length direction, and the depth of the groove or cavity 321 is substantially equal to the height dimension d13 of the heating element 40 . The heating element 40 has a surface 410 and a surface 420 that are spaced apart in the height direction. After assembly, the surface 410 is located in the groove or cavity 321 and abuts and contacts the porous body 30 with the surface 3221 defining the groove or cavity 321. Through the contact and abutment of the surface 410 with the surface 3221, heating is performed. Element 40 provides support and retention, as well as for delivering the liquid matrix to heating element 40 . And after assembly, the surface 420 of the heating element 40 is substantially exposed. Moreover, the contact area between the heating portion 43 of the heating element 40 and the surface 3221 of the porous body 30, such as the contact area between the surface 410 and the surface 3221, is less than 25% of the outer surface area of the heating portion 43, which is advantageous for limiting contact and reducing heat transfer.

And in this implementation, the length dimension d11 of the heating element 40 is smaller than the length of the groove or cavity 321; then after assembly, the two ends of the heating element 40 in the length direction are respectively connected with the two ends of the groove or cavity 321 in the length direction. There is a spacing; that is, the two ends of the heating element 40 in the length direction are not flush with the two ends of the groove or cavity 321 in the length direction.

And further according to Figures 3 to 5, the atomization component also includes:

electrodes 51 and 52 for conducting current along the length of the heating element 40;

And, the electrodes 51 and 52 are at least partially formed on the surface 320 of the porous body 30 . And after assembly, the electrode 51 is in contact or conductive with a portion of the surface of the electrical connection portion 41 of the heating element 40; and the electrode 52 is in contact or conductive with a portion of the surface of the electrical connection portion 42 of the heating element 40. And after assembly, the electrode 51 completely or at least partially covers the electrical connection portion 41 of the heating element 40; and the electrode 52 completely or at least partially covers the electrical connection portion 42 of the heating element 40.

And, the electrode 51 spans the section 3210 of the groove or cavity 321 along the width direction; the electrode 52 spans the section 3230 of the groove or cavity 321 along the width direction.

And in implementations, electrodes 51 and 52 support or retain heating element 40 at least partially at surface 320 to securely retain heating element 40 within groove or cavity 321 and prevent heating element 40 from exiting the recess. out of the groove or cavity 321. For example, in some implementations, the electrode 51 and/or the electrode 52 is an electrode sheet, an electrode plate or an electrode disk, and the electrode 51 and/or the electrode 52 are heated by welding or mechanically fixing the electrode 51 and/or the electrode 52 on the surface 320 . Element 40 is electrically conductive. Or during preparation, the exposed surfaces of the electrical connection portion 41 and the electrical connection portion 42 of the heating element 40 are coated with a conductive paste such as silver paste, and then the electrodes 51 and 52 are fixed to the surface 320 by welding or mechanical fixation, and are made electrically conductive. The slurry becomes electrically conductive after curing.

Or in some implementations, the electrode 51 and the electrode 52 are formed by printing or deposition. For example, by printing or depositing a conductive paste on the surface 320, and allowing the conductive paste to at least partially penetrate into the gap between the electrical connection portion 41 and the section 3210 of the heating element 40, and into the electrical connection section 42 and the section 3230. The gap between them is then sintered or solidified to form the electrode 51 and the electrode 52 . Furthermore, the conductive paste that penetrates between the electrical connection part 41 and the section 3210, and the conductive paste that penetrates between the electrical connection part 42 and the section 3230 is at least partially provided to connect the electrical connection part 41 and/or the electrical connection after being sintered or solidified. Connection between the connecting portion 42 and the porous body 30 . And the electrodes 51 and 52 formed of the conductive paste are at least partially immersed or penetrated into the micropores of the electrical connection portion 41 and the electrical connection portion 42 respectively.

And after assembly, the electrode 51 and the electrode 52 are exposed; then the second electrical contact 21 of the atomizer 100 extends into the atomizer 100 from the distal end 120 and abuts against the electrodes 51 and 52 to form a conductive to power the heating element 40 .

And in implementation, the electrical connection portion 41 and the electrical connection portion 42 of the heating element 40 are used to define the electrical connection area of the heating element 40, thereby powering the heating element 40 during use. Also, the heating portion 43 of the heating element 40 essentially defines a heating zone for heating the liquid substrate. And, there is a spacing space 322 between the heating part 43 of the heating element 40 and the porous body 30 and is at least partially non-contact; and the electrical connection part 41 and the electrical connection part 42 are completely against or in contact with the porous body 30, and the electrical connection part 41 and the electrical connection part 42 are completely against or in contact with the porous body 30. There is substantially no gap or spacing between the connecting portion 41 and the electrical connecting portion 42 and the porous body 30 .

And, the surface 410 of the heating element 40 is a surface for defining contact with and sucking the liquid matrix from the porous body 30; and the two side surfaces of the heating portion 43, and the surface 420 are surfaces for releasing aerosol. Also, the microporous pores within the heating element 40 absorb and retain the liquid matrix.

Further, Figure 6 shows a schematic diagram of the atomization assembly of a modified embodiment; in this implementation, the atomization assembly includes:

The porous body 30a has opposite surfaces 310a and 320a; and a groove is provided on the surface 320a, and the groove passes through the porous body 30a along the length direction; and the groove has: a section 3210a, a section 3220a and section 3230a; and, the recessed depths of section 3210a and section 3230a are less than the recessed depth of section 3220a.

Specifically, the depression depth d12 of the section 3210a and the section 3230a is the same as the height dimension of the heating element 40a; the depression depth d22 of the section 3220a is greater than the depression depth d12 of the section 3210a and the section 3230a, specifically the depression depth d22 It is 1~3mm larger than the depression depth d12.

Then after assembly, the electrical connection portion 41a of the heating element 40a is accommodated and retained in the section 3210a, and contacts the porous body 30a; and the electrical connection section 42a is accommodated and retained in the section 3230a, and abuts against it. Contact is made on the porous body 30a; the heating part 43a is suspended in the section 3220a. The heating portion 43a is not in contact with any surface of the porous body 30a.

There is a distance between the surface 410a at the heating part 43a and the surface 3221a of the porous body 30a. The distance is the difference between the above depression depth d22 and the depression depth d12, which is 1 to 3 mm.

In implementation, the electrical connection portions 41a and 42a of the heating element 40a are used to define the electrical connection areas of the heating element 40a, and the surfaces of the electrical connection portions 41a and 42a are also used to absorb the liquid matrix from the porous body 30a. ; and the heating portion 43a defines the heating zone of the heating element 40a.

In this embodiment, the heating portion 43a for heating is not in direct contact with the porous body 30a, which is advantageous for preventing the heat from the heating portion 43a from being transferred to the porous body 30a.

Or FIG. 7 shows a schematic diagram of the atomization assembly of yet another modified embodiment. In this embodiment, the groove on the surface 320b of the porous body 30b does not penetrate the porous body 30b; the section 3210b of the groove is non-extended or It does not terminate at the first side end, and there is still a distance d25 between the section 3210b and the first side end, which is about 2 to 3 mm. Likewise, segments 3230b that do not extend or terminate at the second side end also maintain a distance d25.

During the assembly process, the two ends of the groove along the length direction are closed rather than penetrating, which is advantageous for providing a position limit for the heating element 40 during assembly and preventing the heating element 40 from moving along the length direction within the groove. of.

Or Figure 8 shows a schematic diagram of an atomizer 100 according to yet another modified embodiment. In this embodiment, the atomizer 100 includes:

The aerosol output channel 11c extends longitudinally along the housing of the atomizer 100, and a liquid storage chamber 21c surrounding the aerosol output channel 11 is defined between the aerosol output channel 11c and the housing;

The atomization component is arranged to be located in the aerosol output channel 11c; including:

The porous body 30c extends along the longitudinal direction of the atomizer 100; and is basically hollow tubular; the outer surface of the porous body 30c along the radial direction is in fluid communication with the liquid storage chamber 12c to absorb the liquid matrix, as indicated by arrow R1 in Figure 8 Show;

The heating element 40c, in the implementation the heating element 40c is porous; the heating element 40c is arranged within the porous body 30c and is surrounded and surrounded by the porous body 30c; the heating element 40c includes: an electrical connection near or defining the upper end in the longitudinal direction portion 41c, an electrical connection portion 42c adjacent or defining the lower end, and a heating portion 43c located between the electrical connection portion 41c and the electrical connection portion 42c. And in implementation, the heating portion 43c defines the heating zone of the heating element 40c. Similarly, the electrical connection portion 41c is exposed on the surface at the upper end, and the electrical connection portion 42c is exposed on the lower end surface, and can be used to define the electrical connection area of the heating element 40c by welding or covering electrodes.

Further according to the cross-sectional schematic diagram of the atomization assembly shown in Figure 9, the heating element 40c may have a non-cylindrical shape, so that after assembly, a spacing space 322c surrounding the heating part 43c is formed between them; one aspect can prevent The heating portion 43c of the heating element 40c transfers heat to the porous body 30c, yet another aspect accommodates the aerosol heated and released by the heating portion 43c. And further according to FIG. 9 , at least part of the outer surface of the heating element 40c is arc-shaped, and is in contact or combined with the inner wall surface of the porous body 30c, so as to draw the liquid matrix from the porous body 30c. The portion of the outer surface of the heating element 40c that is not in contact with the inner wall surface of the porous body 30c defines an atomization surface for releasing aerosol.

Or in some alternative embodiments, the inner surface of the porous body 30c is provided with longitudinally extending grooves, so that after assembly, the grooves on the inner surface of the porous body 30c define the above spacing space 322c.

Or further referring to FIG. 9 , a gap 322c defined between the porous body 30c and the heating element 40c is provided at the upper end and/or lower end of the atomization assembly. During suction, a gap 322c is formed to pass through the air supply space and enter the gap space 322c, and Air flow channel for outputting aerosol.

Or Figures 10 and 11 show a schematic diagram of an atomization assembly in yet another embodiment. In this embodiment, the atomization assembly includes:

The porous body 30d has opposite surfaces 310d and 320d; the surface 320d is provided with a groove or cavity 321d extending along the length direction; in this embodiment, the width dimension d22 of the groove or cavity 321d is constant;

And, the heating element 40d includes an electrical connection portion 41d, an electrical connection portion 42d and a heating portion 43d; wherein the width dimensions of the electrical connection portion 41d and the electrical connection portion 42d are the same as the width dimension d22 of the groove or cavity 321d; The width dimension of the heating part 43d is smaller than the width dimension of the electrical connection part 41d and the electrical connection part 42d; furthermore, after the heating element 40d is assembled in the groove or cavity 321d, the heating part 43d and the inner wall of the groove or cavity 321d A spacing space is formed therebetween so that the heating part 43d is suspended.

And further according to Figures 10 and 11, the groove or cavity 321d penetrates or extends from the surface 310d to the surface 320d; then after assembly, the outer surface of the porous body 30d along the circumferential direction or the surface 310d/surface 320d are both It can optionally be used as a liquid-absorbing surface in fluid communication with the liquid storage chamber 12 to absorb the liquid substrate. And in use, an airflow channel is defined between the inner wall 3211d of the groove or cavity 321d and the outer surface of the heating portion 43d of the heating element 40d; for example, in suction, the airflow passes through as indicated by arrow R2 in Figure 11 The space defined between the inner side wall 3211d of the groove or cavity 321d and the heating portion 43d of the heating element 40d is then output.

In some implementations, the above porous heating elements 40/40a/40c/40d are independently prepared and then assembled in the groove of the porous body 30/30a/30b/30d through mechanical assembly such as inlay; at least heating The elements 40/40a/40c/40d are not directly formed in the grooves of the porous body 30/30a/30b/30d by deposition, spraying, printing or printing.

In some embodiments, the above porous heating elements 40/40a/40c/40d may be made of resistive metal or alloy raw materials mixed with pore-forming agents and then sintered; the resistive metal or alloy raw materials include resistance Metal materials, metal alloys, graphite, carbon, conductive ceramics or other composite materials of ceramic materials and metal materials; wherein, suitable metal or alloy materials include nickel, cobalt, zirconium, titanium, nickel alloy, cobalt alloy, zirconium alloy, At least one of titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-chromium-aluminum alloy, iron-manganese-aluminum-based alloy or stainless steel.

In some embodiments, the heating element 40 is non-metallic; or the heating element 40 does not contain metallic elements or metal components. And, the heating element 40 is a non-metal porous heating element 40 prepared by a resin gel method; for example, the heating element 40 includes at least carbon; or the heating element 40 further includes non-metal nitrogen, or silicon.

Or in yet other variations, the above heating elements 40/40a/40c/40d are dense rather than porous. For example, it is formed by spraying or depositing a resistive metal or alloy on a dense ceramic surface.

Or in some modified implementations, the above heating elements 40/40a/40c/40d are made of sensitive metal or alloy materials, such as permalloy, S430 stainless steel, iron-aluminum alloy, etc.; the heating elements 40/40a/ 40c/40d can be penetrated by the changing magnetic field generated by induction coils, etc. to generate heat and be used for heating.

It should be noted that the preferred embodiments of the present application are given in the description and drawings of the present application, but are not limited to the embodiments described in the present description. Furthermore, those of ordinary skill in the art can Improvements or changes may be made based on the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of this application.

Claims (17)

1. An atomizer, characterized in that it includes: Liquid storage chamber for storing liquid matrix; A porous body having a first surface and a second surface; wherein the first surface is in fluid communication with the liquid storage chamber to receive a liquid matrix; the second surface defines a cavity; A heating element, at least partially contained or retained in the cavity, for heating a liquid substrate to generate an aerosol; the heating element includes: a heating portion for heating a liquid substrate; and first and second electrical connection portions for conducting electrical current on said heating portion; At least one spacing space is formed between the porous body and the heating part to reduce heat transfer from the heating part to the porous body. 2. The atomizer according to claim 1, characterized in that the heating element is porous; a part of the surface of the heating element is in contact with the porous body for removing the gas from the porous body. Liquid is aspirated and the aspirated liquid matrix is heated. 3. The atomizer according to claim 1 or 2, wherein the area of contact between the heating part and the porous body is less than 25% of the outer surface area of the heating part. 4. The atomizer of claim 1, wherein the heating element has a length, a width and a height; the length direction of the heating element is parallel to the length direction of the second surface, and the heating element has a length, a width and a height. The width direction is parallel to the width direction of the second surface; the height of the heating element is greater than the width, so that the heating element basically stands in the cavity instead of lying flat. 5. The atomizer according to claim 1 or 2, further comprising: A first electrode is conductively connected to the first electrical connection part; a second electrode is conductively connected to the second electrical connection part; in use, power is supplied to the heating element through the first electrode and the second electrode. ; The first electrode is at least partially located on the second surface and at least partially covers the first electrical connection portion; the second electrode is at least partially located on the second surface and at least partially covers the second electrical connection. part. 6. The atomizer of claim 5, wherein the first electrode and/or the second electrode are configured to provide retention of the heating element at least partially on the second surface to prevent the The heating element falls out or leaves the cavity. 7. The atomizer of claim 5, wherein the heating element is porous; The first electrode and/or the second electrode are at least partially immersed or penetrated into the pores of the first electrical connection part; and/or the second electrode is at least partially immersed or infiltrated into the pores of the second electrical connection part Inside. 8. The atomizer according to claim 5, wherein the first electrode and/or the second electrode are formed by sintering or solidifying conductive slurry; The first electrode and/or the second electrode at least partially penetrate between the heating element and the porous body to connect and tighten the heating element and the porous body. 9. The atomizer of claim 1 or 2, wherein the heating element is at least partially exposed on the second surface. 10. The atomizer according to claim 1 or 2, wherein the heating element has a liquid-absorbing surface facing away from the second surface; the liquid-absorbing surface is against or in contact with the porous body. for absorbing liquid matrix from the porous body. 11. The atomizer according to claim 1 or 2, characterized in that the heating part is suspended in the cavity. 12. The atomizer according to claim 1 or 2, characterized in that there is substantially no gap or spacing between the first electrical connection part and/or the second electrical connection part and the porous body. . 13. The atomizer of claim 1 or 2, wherein the second surface has a first side end and a second side end that are away from each other along the length direction; The cavity includes a first section proximate the first side end, a second section proximate the second side end, and a third section located between the first section and the second section; The width dimension of the third section is greater than the width dimension of one or both of the first section and the second section; The at least one gap space is defined between the inner surface of the third section and the heating portion. 14. The atomizer of claim 13, wherein the heating element spans the third section. 15. An atomizer, characterized in that it includes: Liquid storage chamber for storing liquid matrix; a heating element extending along the longitudinal direction of the atomizer for heating the liquid matrix to generate an aerosol; A porous body extending in the longitudinal direction of the atomizer and at least partially surrounding the heating element for at least partially transferring a liquid matrix between the liquid storage chamber and the heating element; The heating element has a first end and a second end that are away from each other in a longitudinal direction; the heating element includes: a first electrical connection portion near the first end, a second electrical connection portion near the second end, and a heating portion located between the first electrical connection portion and the second electrical connection portion; the first electrical connection portion and the second electrical connection portion are used to conduct current on the heating element; the heating portion defines a heating zone that heats the liquid substrate; At least one spacing space is formed between the porous body and the heating part to reduce heat transfer from the heating part to the porous body. 16. An electronic atomization device, comprising an atomizer that atomizes a liquid matrix to generate an aerosol, and a power supply mechanism that supplies power to the atomizer; characterized in that the atomizer includes any one of claims 1 to 15 The atomizer described in one item. 17. An atomization component for an atomizer, characterized in that it includes: A porous body having at least a first surface and a second surface; wherein the first surface is configured to receive a liquid matrix; the second surface defines a cavity; A heating element, at least partially contained or retained in the cavity, for heating a liquid substrate to generate an aerosol; the heating element includes: a heating portion for heating a liquid substrate; and first and second electrical connection portions for conducting electrical current on said heating portion; At least one spacing space is formed between the porous body and the heating part to reduce heat transfer from the heating part to the porous body.