CN219982149U

CN219982149U - Atomizer and electronic atomization device

Info

Publication number: CN219982149U
Application number: CN202320985595.5U
Authority: CN
Inventors: 李富毅; 王智; 鲁林海; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-11-10
Anticipated expiration: 2033-04-20

Abstract

The utility model provides an atomizer and an electronic atomization device, comprising a shell: the shell is internally provided with: a liquid storage chamber for storing a liquid matrix; a porous body in fluid communication with the reservoir to draw up the liquid matrix; a heating element coupled to the porous body for heating at least a portion of the liquid matrix within the porous body to generate an aerosol; an aerosol output tube providing a channel for outputting aerosol; a flexible support at least partially housing the porous body; when the porous body is received within the holder, the porous body has an exposed surface facing the aerosol delivery conduit; and the condensate guiding structure is used for connecting the aerosol output pipe with the exposed surface of the porous body so as to guide the aerosol condensate in the aerosol output pipe to be transferred to the porous body. The atomizer guides the aerosol condensate in the aerosol output pipe to the porous body through the condensate guiding structure to be absorbed.

Description

Atomizer and electronic atomization device

Technical Field

The embodiment of the utility model relates to the technical field of electronic atomization, in particular to an atomizer and an electronic atomization device.

Background

Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release the compounds without burning.

An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are aerosol provision articles, for example, so-called electronic atomizing devices. These devices typically contain a liquid that is heated to cause atomization thereof, thereby producing an inhalable aerosol. The liquid may comprise nicotine and/or a fragrance and/or an aerosol generating substance (e.g. glycerol). In the known electronic atomizing devices, condensate is formed on the inner wall of the output channel during the output of the aerosol, which is sucked up with the suction air flow delivered to the air outlet.

Disclosure of Invention

One embodiment of the present utility model provides an atomizer comprising a housing: the shell is internally provided with:

a liquid storage chamber for storing a liquid matrix;

a porous body in fluid communication with the reservoir to draw up a liquid matrix;

a heating element coupled to the porous body for heating at least a portion of the liquid matrix within the porous body to generate an aerosol;

an aerosol output tube providing a channel for outputting aerosol;

a flexible support at least partially housing the porous body; when the porous body is received within the holder, the porous body has an exposed surface facing the aerosol delivery conduit;

and the condensate guiding structure is used for connecting the aerosol output pipe with the exposed surface of the porous body so as to guide the aerosol condensate in the aerosol output pipe to be transferred to the porous body.

In some embodiments, the stent comprises:

a second end proximate to the first end of the reservoir and facing away from the first end;

an accommodation space disposed near the second end for accommodating the porous body;

an inner wall located between the accommodation space and the first end and defining an exposed surface of the porous body; the aerosol delivery tube is at least partially inserted from the first end to the inner wall.

In some embodiments, the condensate guiding structure comprises a ridge disposed on an inner surface of the inner wall.

In some embodiments, capillary grooves adjacent to the ribs are also provided on the inner surface of the inner wall for promoting transfer of aerosol condensate over the ribs by capillary adsorption.

In some embodiments, the condensate directing structure includes one or more teeth extending from the aerosol delivery tube to the porous body.

In some embodiments, the stent further comprises:

an outer wall extending from the first end to the second end and surrounding the inner wall; the outer wall is positioned at least partially between the porous body and the housing, thereby providing a seal between the porous body and the housing;

a liquid guide channel is arranged between the outer wall and the inner wall, and the porous body is in fluid communication with the liquid storage cavity through the liquid guide channel, so that liquid matrix from the liquid storage cavity is sucked.

In some embodiments, the housing comprises:

a main housing having an opening;

an end cover coupled to the main housing and closing the opening;

a through hole extending from the second end to the liquid guide channel is arranged on the outer wall;

pins which at least partially penetrate through the through holes are arranged on the end covers; an air passage is defined between the outer surface of the pin and the inner surface of the through hole to at least partially provide a flow path for air into the reservoir.

In some embodiments, the porous body comprises:

longitudinally opposed top and bottom walls of the atomizer;

the heating element is combined on the bottom wall;

the exposed surface is defined on the top wall.

In some embodiments, the top wall abuts against the inner wall when the porous body is received within the receiving space.

Still another embodiment of the present utility model provides an electronic atomizer, including the above atomizer, and a power supply mechanism for supplying power to the atomizer.

The atomizer guides the aerosol condensate in the aerosol output pipe to the porous body through the condensate guiding structure to be absorbed.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic diagram of an electronic atomizing device according to an embodiment;

FIG. 2 is a schematic view of the atomizer of FIG. 1 from one perspective;

FIG. 3 is an exploded view of the atomizer of FIG. 2 from one perspective;

FIG. 4 is an exploded view of the atomizer of FIG. 2 from yet another perspective;

FIG. 5 is a schematic cross-sectional view of the atomizer of FIG. 2 from one perspective;

FIG. 6 is a schematic cross-sectional view of the atomizer of FIG. 2 from yet another perspective;

FIG. 7 is a schematic view of the porous body of FIG. 5 from another perspective;

FIG. 8 is a schematic view of the bracket of FIG. 5 from another perspective;

FIG. 9 is a schematic cross-sectional view of a further embodiment of a nebulizer at one viewing angle;

FIG. 10 is a schematic cross-sectional view of the main housing of FIG. 9 from yet another perspective;

fig. 11 is a schematic cross-sectional view of the atomizer of fig. 9 from yet another perspective.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

One embodiment of the present utility model proposes an electronic atomizing device, which may be seen in fig. 1, comprising an atomizer 100 storing a liquid matrix and atomizing it to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer 100.

In an alternative implementation, such as shown in fig. 1, the power mechanism 200 includes a receiving cavity 270 disposed at one end along a length for receiving and accommodating at least a portion of the atomizer 100, and an electrical contact 230 at least partially exposed within the receiving cavity 270 for making electrical connection with the atomizer 100 when at least a portion of the atomizer 100 is received and accommodated within the power mechanism 200 to thereby power the atomizer 100.

According to the preferred implementation shown in fig. 1, the atomizer 100 is provided with electrical contacts 21 on the end opposite the power supply mechanism 200 in the length direction, whereby when at least a portion of the atomizer 100 is received in the receiving cavity 270, the electrical contacts 21 are brought into electrical conduction by contact with the electrical contacts 230.

A sealing member 260 is provided in the power supply mechanism 200, and at least a part of the internal space of the power supply mechanism 200 is partitioned by the sealing member 260 to form the above receiving chamber 270. In the preferred embodiment shown in fig. 1, the seal 260 is configured to extend in a direction perpendicular to the longitudinal direction of the power mechanism 200 and is preferably made of a flexible material such as silicone to prevent liquid matrix seeping from the atomizer 100 into the receiving chamber 270 from flowing to the controller 220, sensor 250, etc. inside the power mechanism 200.

In the preferred embodiment shown in fig. 1, the power mechanism 200 further includes a battery cell 210 disposed lengthwise away from the receiving cavity 270 for supplying power; and a controller 220 disposed between the battery cell 210 and the receiving cavity 270, the controller 220 being operable to direct electrical current between the battery cell 210 and the electrical contacts 230.

In use, the power supply mechanism 200 includes a sensor 250 for sensing a change in airflow through the nebulizer 100 generated by a user drawing the nebulizer 100, and the controller 220 controls the electrical core 210 to supply power to the nebulizer 100 in response to a detection signal from the sensor 250.

In the preferred embodiment shown in fig. 1, the power supply mechanism 200 is provided with a charging interface 240 at the other end facing away from the receiving cavity 270 for charging the battery cells 210.

The embodiment of fig. 2 to 6 shows a schematic structural diagram of one embodiment of the atomizer 100 of fig. 1, comprising:

a main housing 10; as shown in fig. 2 to 6, the main casing 10 has a substantially flat cylindrical shape; the main housing 10 has longitudinally opposed proximal and distal ends 110, 120; wherein, according to the requirements of common use, the proximal end 110 is configured to be used as one end of aerosol sucked by a user, and the proximal end 110 is provided with an air outlet 130 for sucking by the user; and the distal end 120 is taken as one end to be coupled with the power supply mechanism 200, and the distal end 120 of the main casing 10 is opened, on which the detachable end cap 20 is mounted, the opened structure being used for mounting each necessary functional component to the inside of the main casing 10.

In the embodiment shown in fig. 2-6, the electrical contact 21 extends from the surface of the end cap 20 into the interior of the atomizer 100, and is at least partially exposed to the end cap 20/atomizer 100/distal end 120, so that the electrical contact 21 can be in contact with the electrical contact 230 to form electrical conduction when the atomizer 100 is received in the receiving cavity 270 of the power supply mechanism 200. At the same time, an air inlet 23 is provided in the end cap 20 for the entry of external air into the atomizer 100 during suction.

Referring to fig. 2 to 6, the inside of the main housing 10 is provided with a liquid storage chamber 12 for storing a liquid substrate, and an atomizing assembly for sucking the liquid substrate from the liquid storage chamber 12 and heating the atomized liquid substrate. Wherein the atomizing assembly generally includes a capillary liquid guide element for drawing the liquid matrix, and a heating element coupled to the liquid guide element that heats at least a portion of the liquid matrix of the liquid guide element to generate an aerosol during energization. In alternative implementations, the liquid-guiding element comprises flexible fibers, such as cotton fibers, non-wovens, glass-fiber ropes, etc., or comprises a porous material having a microporous construction, such as a porous ceramic; the heating element may be attached to the liquid guiding element by printing, deposition, sintering or physical assembly, or wound around the liquid guiding element.

In the embodiment shown in fig. 2 to 6, the interior of the main housing 10 is provided with an aerosol output tube 11 extending from the proximal end 110 towards the distal end 120 for defining an output channel for outputting the aerosol. And in an embodiment, the aerosol delivery tube 11 is integrally molded with the main housing 10; for example they are integrally moulded from a mouldable organic polymer plastic. And in an embodiment, a reservoir 12 for storing a liquid matrix is defined between the aerosol delivery tube 11 and the main housing 10.

As shown in fig. 2 to 7, the atomizer 100 further comprises an atomizing assembly for heating and atomizing the liquid substrate from the liquid storage chamber 12 to generate aerosol; specifically, the atomizing assembly includes:

a porous body 30 such as a rigid porous ceramic, porous glass, or the like; the porous body 30 has an arch shape in shape and has top and bottom walls 31 and 32 opposed in the height direction, and first and second side walls 34 and 35 opposed in the width direction. The top wall 31, the bottom wall 32, the first side wall 34, and the second side wall 35 are each extended in the length direction of the porous body 30, and a liquid passage 33 penetrating the porous body 30 in the length direction is defined between the top wall 31, the bottom wall 32, the first side wall 34, and the second side wall 35; the surface of the bottom wall 32 facing away from the top wall 31 is configured as an atomizing face 320. In fig. 7, the top wall 31 defines a gap 331 at each end in the longitudinal direction, through which gap 331 the liquid matrix is caused to flow into the liquid channel 33 in use.

The atomizing assembly further includes:

a heating element 40 coupled to the atomizing face 320 of the porous body 30 for heating at least a portion of the liquid matrix within the porous body 30 to generate an aerosol.

In some embodiments, the heating element 40 comprises conductive traces formed on the atomizing face 320 by printing, deposition, or the like; in particular, the heating element 40 comprises a printed meander, or meander-extending conductive trace. Alternatively, in other variations, the heating element 40 is a planar heating element that is cut or etched from a sheet substrate and then attached to the atomizing face 320.

The heating element 40 is made of a resistive metal material with appropriate resistance, a metal alloy material; for example, suitable metals or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nichrome, nickel-iron alloys, iron-chromium alloys, titanium alloys, iron-manganese-aluminum based alloys, or stainless steel, among others.

As shown in fig. 2-6, upon assembly, the atomizing face 320 is oriented toward the distal end 120 and/or the end cap 20; and an atomizing chamber 340 is defined between the atomizing face 320 and the end cap 20 for receiving the aerosol released from the atomizing face 320. And after assembly, the electrical contacts 21 bear against the heating element 40 and form an electrically conductive connection with the heating element 40 for conducting an electrical current over the heating element 40.

As shown in fig. 2 to 8, the atomizer 100 further includes:

a flexible stent 50 made of flexible silicone rubber, or thermoplastic elastomer; the flexible support 50 serves to close the opening of the reservoir 12 toward the distal end 120 and to receive and retain the porous body 30.

Specifically, the holder 50 is configured to be cylindrical extending in the longitudinal direction of the atomizer 100, and includes:

an upper end 510 and a lower end 520 opposite in the longitudinal direction; when assembled, the upper end 510 faces the reservoir 12 and blocks the reservoir 12; and, the lower end 520 is open for fitting the porous body 30 from the lower end 520 into the holder 50;

a cylindrical outer wall 540, and an inner wall 530 located within the outer wall 540 extending from the upper end 510 to the lower end 520; the inner wall 530 surrounds and defines a plug opening 56 at the upper end 510, and the aerosol output tube 11 is inserted into the inner wall 530 through the plug opening 56 after assembly for connection;

the cylindrical outer wall 540 defines therein a receiving space 54 between the inner wall 530 and the lower end 520, and the assembled porous body 30 is received and held in the receiving space 54 and is stopped against the inner wall 530 in the longitudinal direction of the holder 50. Specifically, after assembly, the top wall 31 of the porous body 30 abuts against the inner wall 530. And, after assembly, the inner wall 530 is located between the porous body 30 and the reservoir 12 in the longitudinal direction. And, at least part of the surface of the top wall 31 of the porous body 30 is exposed through the inner wall 530; alternatively, the inner wall 530 surrounds or defines the exposed surface of the top wall 31 of the porous body 30. Specifically, the surface of the top wall 31 of the porous body 30 opposite the hollow of the inner wall 530 forms an exposed surface.

As shown in fig. 5 and 6, a portion of the outer wall 540 adjacent the lower end 520 surrounds or encloses the end cap 20 and is supported from the inside by the end cap 20 to provide a seal between the end cap 20 and the main housing 10.

Referring to fig. 6 to 8, a cylindrical outer wall 540 and an inner wall 530 are defined therebetween:

the liquid-guiding passage 55 extends from the upper end 510 to the accommodation space 54, and has a communication port 551 communicating with the accommodation space 54, thereby conducting the liquid matrix to the porous body 30 accommodated in the accommodation space 54. And after assembly, the notch 331 in the top wall 31 is opposite to the communication port 551, so that in use, the liquid matrix in the liquid guide channel 55 passes through the communication port 551 and the notch 331 in sequence, and then enters the liquid channel 33 of the porous body 30 to be absorbed by the porous body 30, as shown by arrow R1 in fig. 5.

As shown in fig. 5 to 8, the inner surface of the bracket 50 defining the accommodation space 54 is further defined with a groove 531 along the thickness direction of the bracket 50; when the porous body 30 is received in the receiving space 54, a gap between the porous body 30 and the outer wall 540 of the holder 50 is defined by the groove 531, thereby providing a passage for aerosol from the atomizing chamber 340 through the groove 531 into the inner wall 530.

Alternatively, the accommodation space 54 has a portion of increased width at the groove 531, so that the porous body 30 forms a slit passage between the portion of increased width defined by the groove 531 and the outer wall 540 of the holder 50.

The flow of the air flow in the suction is shown by arrow R2 in fig. 5, 6 and 8, and the external air enters the atomizing chamber 340 from the air inlet 23 of the end cap 20, enters the interior 530 through the groove 531, and is output from the aerosol output pipe 11 to the air outlet 130.

As shown in fig. 5 to 8, the outer surface of the outer wall 540 has disposed thereon:

the first ribs 51 are adjacent to the upper end 510 and extend along the circumferential direction of the outer wall 540; the first bead 51 is used to provide a seal between the bracket 50 and the main housing 10 at the upper end 510;

the second ribs 52 are adjacent to the lower end 520 and extend along the circumference of the outer wall 540; the second bead 52 is used to provide a seal between the end cap 20 and the main housing 10;

the third bead 53 is arranged extending in the circumferential direction of the outer wall 540 and is opposite to the accommodation space 54; specifically, when the porous body 30 is accommodated in the accommodation space 54, the third bead 53 is opposed to the porous body 30 and is thereby pressed from the inside for providing sealing between the porous body 30 and the main casing 10.

As shown in fig. 5 to 8, the inner surface of the inner wall 530 of the bracket 50 is further defined with:

condensate guiding structures, such as ribs 57 extending in a longitudinal direction on the inner surface of the inner wall 530; after assembly, the rib 57 is located between the aerosol delivery tube 11 and the exposed surface of the top wall 31 of the porous body 30 for transferring and absorbing aerosol condensate collected on the inner surface of the aerosol delivery tube 11 to the top wall 31 of the porous body 30. After assembly, the end of the aerosol delivery tube 11 that is inserted into the inner wall 530 is abutted against the rib 57 and thereby contacted to transfer the aerosol condensate to the top wall 31 of the porous body 30, as shown by arrow R3 in fig. 5-8.

In some embodiments, the height of the protrusions of rib 57 is about 2-5 mm and the width of rib 57 is about 1-4 mm.

In the embodiment shown in fig. 5-8, the inner surface of the inner wall 530 of the bracket 50 is further defined with:

capillary grooves 58 are disposed on both sides in the width direction of the rib 57 and adjacent to the rib 57 for promoting transfer and infiltration of aerosol condensate along the surface of the rib 57 to the porous body 30 by capillary suction of the capillary grooves 58. The capillary groove 58 has a depth of about 0.5 to 2.0mm and a width of 0.5 to 1.5 mm.

As shown in fig. 8, 5 and 4, the stand 50 further includes:

a hole 59 penetrating from the lower end 520 into the liquid guide passage 55;

pins 22 are disposed on the end cap 20; after assembly, the end cap 20 is inserted or threaded through the aperture 59 and into the fluid transfer channel 55. An air groove 221, about 0.5-2.0 mm deep, is provided on the outer surface of the pin 22 and/or the inner surface of the bore 59 to provide a flow path for air within the nebulization chamber 340 to enter the liquid guide channel 55 through the air channel defined by the air groove 221 between the pin 22 and the bore 59 for external air to enter the liquid reservoir 12 through between the pin 22 and the bore 59 to at least partially relieve the negative pressure within the liquid reservoir 12 when the negative pressure within the liquid reservoir 12 exceeds a threshold value.

Fig. 9 to 11 show schematic views of a nebulizer 100 of yet another embodiment, in fig. 9 to 11, the nebulizer 100 comprises:

a main housing 10a, the main housing 10a having an aerosol output tube 11a extending longitudinally from a proximal end 110a toward a distal end 120 a; the aerosol output tube 11a defines a passage inside for outputting aerosol. And a liquid storage chamber 12a for storing the liquid matrix is defined between the aerosol delivery tube 11a and the main housing 10 a;

an end cap 20a coupled to the distal end 120a of the main housing 10a for closing the opening of the main housing 10a at the distal end 120 a;

a porous body 30a for sucking up the liquid matrix; the porous body 30a has opposed top and bottom walls 31a and 32a, and a liquid passage 33a between the top and bottom walls 31a and 32 a; the bottom wall 32a defines an atomizing face 320a facing the end cap 20a for engaging the heating element 40a;

a flexible holder 50a for accommodating the porous body 30a; the flexible stent 50a includes an outer wall 540a and an inner wall 530a; after assembly, the inner wall 530a abuts longitudinally against the top wall 31a of the porous body 30a; and a liquid guide passage 55a is defined between the outer wall 540a and the inner wall 530a, and the liquid passage 33a of the porous body 30a receives the liquid matrix in the liquid storage chamber 12a through the liquid guide passage 55 a; and, after assembly, the aerosol delivery tube 11a is at least partially inserted into the inner wall 530 a. And in assembly, the porous body 30a is assembled from the lower end 520a into the holder 50a and against the inner wall 530a; and the aerosol delivery tube 11a is inserted into the inner wall 530a from the upper end 510 a.

As shown in fig. 9 to 11, the aerosol output tube 11a includes:

having an insertion section 111a for insertion into the inner wall 530a, the insertion section 111a having a reduced outer diameter;

condensate guide structure 112a extending from insertion section 111a toward distal end 120 a; the condensate guide structure 112a includes one or more teeth extending from the insertion section 111 a; the one or more teeth are circumferentially spaced apart;

after assembly, the condensate guide structure 112a is abutted against the top wall 31a of the porous body 30a, so that the aerosol condensate collected in the aerosol output tube 11a is guided to the top wall 31a of the porous body 30a for absorption and utilization, as indicated by arrow R3 in fig. 9 to 11.

As shown in fig. 9 to 11, a plurality of first retaining ribs 15a extending longitudinally are also arranged on the inner surface of the main casing 10; and the outer surface of the aerosol delivery tube 11a is also provided with a plurality of longitudinal second retaining ribs 16a; after assembly, the upper end 510a of the bracket 50a is thereby held securely against the first and second retaining ribs 15a, 16a to form a stop.

It should be noted that the description of the utility model and the accompanying drawings show preferred embodiments of the utility model, but are not limited to the embodiments described in the description, and further, that modifications or variations can be made by a person skilled in the art from the above description, and all such modifications and variations are intended to fall within the scope of the appended claims.

Claims

1. An atomizer, comprising a housing: the novel energy-saving shell is characterized in that:

a liquid storage chamber for storing a liquid matrix;

an aerosol output tube providing a channel for outputting aerosol;

2. The nebulizer of claim 1, wherein the mount comprises:

3. The atomizer of claim 2 wherein said condensate directing structure comprises a ridge disposed on an inner surface of said inner wall.

4. A nebulizer as claimed in claim 3, wherein the inner wall is further provided with capillary grooves on the inner surface adjacent the ribs for promoting the transfer of aerosol condensate on the ribs by capillary adsorption.

5. The atomizer of claim 2 wherein said condensate directing structure includes one or more lobes extending from said aerosol delivery tube to said porous body.

6. The nebulizer of any one of claims 2 to 5, wherein the mount further comprises:

7. The nebulizer of claim 6, wherein the housing comprises:

a main housing having an opening;

an end cover coupled to the main housing and closing the opening;

8. The nebulizer of any one of claims 2 to 5, wherein the porous body comprises:

longitudinally opposed top and bottom walls of the atomizer;

the heating element is combined on the bottom wall;

the exposed surface is defined on the top wall.

9. The atomizer of claim 8 wherein said top wall abuts said inner wall when said porous body is received in said receiving space.

10. An electronic atomising device comprising a nebuliser as claimed in any one of claims 1 to 9, and a power supply mechanism for supplying power to the nebuliser.