CN215958347U

CN215958347U - Atomizer and electronic atomization device

Info

Publication number: CN215958347U
Application number: CN202121812932.8U
Authority: CN
Inventors: 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: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-08
Anticipated expiration: 2031-08-04
Also published as: WO2023011553A1

Abstract

The application provides an atomizer and an electronic atomization device; wherein the atomizer comprises a housing; the shell is internally provided with: a liquid storage cavity; an atomizing assembly; a sealing element at least partially sealing the reservoir; a holder for holding the sealing member such that the sealing member is at least partially positioned between the holder and the reservoir; the bracket is provided with an upper surface close to the liquid storage cavity and a side surface surrounding the upper surface; an air channel providing a flow path for air into the reservoir chamber; the air passage includes a first passage portion formed between the side surface of the bracket and the sealing member, and a second passage portion formed between the upper surface and the sealing member; the first channel portion has a larger cross-sectional area than the second channel portion. The atomizer supplies air to the liquid storage cavity through an air channel formed between the support and the sealing element to relieve or balance the negative pressure of the liquid storage cavity; and the air channel comprises portions of different cross-sectional areas, it is advantageous for air to enter the reservoir chamber against the pressure of the liquid substrate.

Description

Atomizer and electronic atomization device

Technical Field

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

Background

Aerosol-providing articles, such as so-called e-cigarette devices, exist. These devices typically contain tobacco tar that is heated to atomize it, thereby generating an inhalable vapor or aerosol. The tobacco tar may comprise nicotine and/or a fragrance and/or an aerosol generating substance (e.g. glycerol). In addition to the flavoring in the tobacco tar.

Known electronic cigarette devices generally include a porous ceramic body having a large number of micropores therein for sucking and conducting the above-mentioned tobacco tar, and a heating element is provided on one surface of the porous ceramic body to heat-atomize the sucked tobacco tar. The micropore in the porous body is used as a channel for smoke to infiltrate and flow to the atomizing surface on one hand, and is used as an air exchange channel for supplying air to enter the oil storage cavity from the outside after smoke in the oil storage cavity is consumed to maintain air pressure balance in the oil storage cavity on the other hand, so that bubbles can be generated in the porous ceramic body when the smoke is heated, atomized and consumed, and then the bubbles enter the oil storage cavity after emerging from the oil absorption surface.

To above known electron cigarette device, when the tobacco tar along with inside stock solution chamber consumes, become negative pressure state in the stock solution intracavity gradually to prevent to a certain extent that the fluid transfer makes the tobacco tar reduce to transmit to the vaporization on the atomizing surface through the micropore passageway of porous ceramic body. In particular, in the known electronic cigarette device, in a continuous suction use state, air outside the liquid storage cavity is difficult to enter the liquid storage cavity through the micropore channels of the porous ceramic body in a short time, so that the transfer rate of the tobacco tar to the atomizing surface is slowed, and insufficient tobacco tar supplied to the heating element can cause the temperature of the heating element to be too high, so that the tobacco tar components are decomposed and volatilized to generate harmful substances such as formaldehyde.

SUMMERY OF THE UTILITY MODEL

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

a reservoir for storing a liquid substrate;

an atomizing assembly for atomizing a liquid substrate to produce an aerosol;

a sealing element at least partially sealing the reservoir;

a holder for holding the sealing element such that the sealing element is at least partially positioned between the holder and the reservoir; the bracket is provided with an upper surface close to the liquid storage cavity and a side surface surrounding the upper surface;

an air channel providing a flow path for air into the reservoir chamber; the air passage includes a first passage portion formed between a side surface of the bracket and the sealing member, and a second passage portion formed between the upper surface and the sealing member; the first channel portion has a cross-sectional area greater than the second channel portion.

In a more preferred embodiment, the bracket is provided with a first groove on a side surface thereof, and the first channel portion is defined between the first groove and the sealing member.

In a more preferred implementation, the first groove has a depth dimension greater than a width dimension.

In a more preferred implementation, the holder has a fluid conducting channel through which the atomizing assembly is in fluid communication with the reservoir;

the second channel part extends to the inner wall of the liquid guide channel, and an air outlet end of the air channel is formed on the inner wall of the liquid guide channel.

In a more preferred embodiment, a second groove is provided on the upper surface of the holder, and the second channel portion is defined between the second groove and the sealing member.

In a more preferred implementation, the width dimension of the second groove is greater than the depth dimension.

In a more preferred implementation, the first channel portion has a different extension direction than the second channel portion; preferably, the first channel portion is substantially perpendicular to the second channel portion.

In a more preferred implementation, the extension of the first channel portion is greater than the extension of the second channel portion.

In a more preferred implementation, the sealing element at least partially covers the bracket and exposes the air inlet end and/or the air outlet end of the air channel.

In a more preferred implementation, the sealing element has an interference fit region for providing a seal between the housing and the carrier by interference fit of a partial region; the first channel portion spans the interference fit region.

In a further preferred embodiment, the sealing element is provided with a bead at least partially surrounding the sealing element, and the interference fit region is defined by the bead.

Yet another embodiment of the present application also provides an electronic atomization device that includes an atomizer for atomizing a liquid substrate to generate an aerosol, and a power supply mechanism for powering the atomizer; the atomizer comprises the atomizer.

The atomizer supplies air to the liquid storage cavity through an air channel formed between the support and the sealing element to relieve or balance the negative pressure of the liquid storage cavity; and the air channel comprises portions of different cross-sectional areas, it is advantageous for air to enter the reservoir chamber against the pressure of the liquid substrate.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic structural diagram of an electronic atomization device provided in an embodiment of the present application;

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

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 view of the structure of a porous body from yet another perspective;

FIG. 7 is a schematic structural view of the bracket from yet another perspective;

FIG. 8 is a schematic view of the sealing element assembled with the bracket from yet another perspective;

FIG. 9 is an enlarged view of portion B of FIG. 7;

fig. 10 is a schematic cross-sectional view of an air passage formed between a sealing member and a bracket.

Detailed Description

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description.

One embodiment of the present application provides an electronic atomizer device, which can be seen in fig. 1, including an atomizer 100 storing a liquid substrate and vaporizing the liquid substrate to generate an aerosol, and a power supply mechanism 200 for supplying power to the atomizer 100.

In an alternative embodiment, such as that shown in fig. 1, the power supply mechanism 200 includes a receiving chamber 270 disposed at one end along the length for receiving and housing at least a portion of the atomizer 100, and a first electrical contact 230 at least partially exposed at a surface of the receiving chamber 270 for making an electrical connection with the atomizer 100 when at least a portion of the atomizer 100 is received and housed in the power supply mechanism 200 to supply power to the atomizer 100.

According to the preferred embodiment shown in fig. 1, the atomizer 100 is provided with a second electrical contact 21 on the end opposite to the power supply mechanism 200 in the length direction, so that when at least a part of the atomizer 100 is received in the receiving chamber 270, the second electrical contact 21 comes into contact against the first electrical contact 230 to form electrical conduction.

The sealing member 260 is provided in the power supply mechanism 200, and the above receiving chamber 270 is formed by partitioning at least a part of the internal space of the power supply mechanism 200 by the sealing member 260. In the preferred embodiment shown in fig. 1, the sealing member 260 is configured to extend along the cross-sectional direction of the power supply mechanism 200, and is preferably made of a flexible material such as silicone, so as to prevent the liquid medium seeping from the atomizer 100 to the receiving cavity 270 from flowing to the controller 220, the sensor 250 and other components inside the power supply mechanism 200.

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

In use, the power supply mechanism 200 includes a sensor 250 for sensing a suction airflow generated when the nebulizer 100 performs suction, and the controller 220 controls the battery cell 210 to supply power to the nebulizer 100 according to a detection signal of the sensor 250.

In a further 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 chamber 270, for charging the battery cells 210.

The embodiment of fig. 2 to 5 shows a schematic structural diagram of one embodiment of the atomizer 100 of fig. 1, including:

a main housing 10; as shown in fig. 2 to 3, the main casing 10 is substantially in the shape of a flat cylinder; main housing 10 has a proximal end 110 and a distal end 120 opposite along its length; wherein, according to the requirement of common use, the proximal end 110 is configured as one end of the user for sucking the aerosol, and a nozzle opening A for the user to suck is arranged on the proximal end 110; and the distal end 120 is used as an end to be coupled with the power supply mechanism 200, and the distal end 120 of the main housing 10 is open, on which the detachable end cap 20 is mounted, and the open structure is used to mount each necessary functional component to the inside of the main housing 10.

In the embodiment shown in fig. 2 to 4, the second electrical contact 21 penetrates from the surface of the end cap 20 to the inside of the atomizer 100, and at least a part of the second electrical contact is exposed outside the atomizer 100, so that the second electrical contact can be in contact with the first electrical contact 230 to form electrical conduction. Meanwhile, the end cap 20 is further provided with a first air inlet 23 for allowing external air to enter into the atomizer 100 during suction.

As further shown in fig. 3-5, the interior of the main housing 10 is provided with a reservoir 12 for storing a liquid substrate, and an atomizing assembly for drawing the liquid substrate from the reservoir 12 and heating the atomized liquid substrate. Wherein the atomization assembly generally includes a capillary wicking element for drawing the liquid substrate, and a heating element coupled to the wicking element, the heating element heating at least a portion of the liquid substrate of the wicking element during energization to generate the aerosol. In alternative implementations, the liquid-conducting element comprises flexible fibers, such as cotton fibers, non-woven fabrics, fiberglass strands, and the like, or comprises a porous material having a microporous structure, such as a porous ceramic; the heating element may be bonded to the wicking element by printing, deposition, sintering, or physical assembly, or may be wound around the wicking element.

Further in the preferred implementation shown in fig. 3-5, the atomizing assembly comprises: a porous body 30 for sucking and transferring the liquid matrix, and a heating element 40 for heating and vaporizing the liquid matrix sucked by the porous body 30. Specifically, the method comprises the following steps:

in the schematic cross-sectional structure shown in fig. 5, a flue gas conveying pipe 11 is arranged in the main housing 10 along the axial direction; a reservoir 12 for storing a liquid medium is also provided in the main housing 10. In practice, the flue gas conveying pipe 11 extends at least partially in the liquid storage chamber 12, and the liquid storage chamber 12 is formed by the space between the outer wall of the flue gas conveying pipe 11 and the inner wall of the main shell 10. The first end of the smoke transport tube 11 opposite to the proximal end 110 is communicated with the mouth a of the suction nozzle, and the second end of the smoke transport tube opposite to the distal end 120 is in airflow connection with the atomizing chamber 340 defined between the atomizing surface 310 of the porous body 30 and the end cap 20, so that the aerosol generated by the heating element 40 and released to the atomizing chamber 340 is transported to the mouth a of the suction nozzle for smoking.

Referring to the structure of the porous body 30 shown in fig. 3, 4 and 5, the shape of the porous body 30 is configured to be, in embodiments, a generally, but not limited to, a block-like structure; according to a preferred design of this embodiment, it comprises an arched shape with an atomizing surface 310 facing the end cap 20 in the axial direction of the main housing 10; wherein, in use, one side of the porous body 30 facing away from the atomizing surface 310 is in fluid communication with the liquid storage cavity 12 to absorb the liquid substrate, and the microporous structure inside the porous body 30 conducts the liquid substrate to the atomizing surface 310 to be heated and atomized to form aerosol, and the aerosol is released from the atomizing surface 310 or escapes to the atomizing chamber 340.

Of course, the heating element 40 is formed on the atomizing surface 310; and, after assembly, the second electrical contact 21 abuts against the heating element 40 to supply power to the heating element 40.

In the aerosol output path during the suction process, referring to fig. 3 to 5, the sealing element 70 is provided with a first insertion hole 72 for inserting the lower end of the smoke transport pipe 11, a second insertion hole 62 is provided on the corresponding support 60, and an aerosol output channel 63 for connecting the atomizing surface 310 with the second insertion hole 62 is provided on the side of the support 60 opposite to the main housing 10. After installation, the complete suction airflow path is shown by an arrow R2 in fig. 3, the external air enters into the atomizing chamber 340 through the first air inlet 23 on the end cap 20, and then the generated aerosol is carried to the second jack 62 through the aerosol output channel 63, and then is output to the smoke transmission tube 11 through the first jack 72.

Referring to fig. 6, in a preferred embodiment, the porous body 30 is shaped in an arch shape and has first and

second side walls

31 and 32 opposed in the thickness direction and a base portion 34 extending between the first and

second side walls

31 and 32; the lower surface of the base portion 34 is configured as a fogging surface 310. And the first side wall 31 and the second side wall 32 are extended in the length direction of the porous body 30, thereby defining a liquid passage 33 extended in the length direction of the porous body 30 between the first side wall 31, the second side wall 32 and the base portion 34, and receiving and absorbing the liquid matrix flowing down from the first liquid guiding hole 71, the second liquid guiding hole 61 and the third liquid guiding hole 51 through the liquid passage 33.

As further shown in fig. 7-8, the holder 60 is generally cylindrical in shape having details thereon including:

channel surface 611 defining second drainage hole 61, channel surface 611 being in fluid communication with reservoir chamber 12 for delivery of liquid matrix;

an upper surface 610 disposed adjacent to the reservoir 12;

a side surface 620 for supporting the sealing member 70; sealing element 70 is held in place primarily by surrounding or wrapping around side surface 620.

In a further preferred embodiment shown in fig. 7 and 8, an air passage 65 is provided in the bracket 60 for allowing air from the nebulizing chamber 340 and/or the first air inlet 23 to enter the reservoir 12.

With further reference to fig. 7 and 8, the air channel 65 is defined by grooves formed on the upper surface 610 and the side surface 620 of the bracket 60. Specifically, a first groove 651 extending in the longitudinal direction is provided on the side surface 620 of the bracket 60, and a second groove 652 extending in the width direction is provided on the upper surface 610 of the bracket 60.

As can be further seen from fig. 9, a first groove 651 is provided through the side surface 620, and a second groove 652 extends from a position of an upper end of the first groove 651 to the channel surface 611 defining the second drain hole 61; the first groove 651 and the second groove 652 are angled so that the extending directions of the first groove and the second groove are different; in the preferred implementation of the figures, their first 651 and second 652 recesses are substantially perpendicular to each other.

Further referring to FIG. 9, the first recess 651 has an extended length dimension d1 of approximately 2.2-2.5 mm; and, the width dimension d2 of the first groove 651 is approximately 0.2-0.4 mm; and, the depth dimension d3 of the first recess 651 is approximately 0.5-0.7 mm. As can be seen from the above, depth dimension d3 of first recess 651 is greater than width dimension d2, and thus flexible sealing element 70 sinks relatively little into first recess 651 under compressive forces after assembly, and thus is advantageous in preventing the cross-sectional space of first recess 651 from being affected by the assembly of sealing element 70.

As further shown in FIG. 9, the second groove 652 has an extended length dimension d4 of approximately 0.8-1.0 mm; and the width dimension d5 of the second groove 652 is approximately 0.1-0.2 mm; and the depth dimension d6 of the second groove 652 is approximately 0.05-0.15 mm. In contrast, the width dimension d5 of the second groove 652 is greater than the depth dimension d6, which is advantageous for air escape.

Also as can be seen from the above implementation, the cross-sectional area of the first recess 651 is greater than the cross-sectional area of the second recess 652. And, the extension length of the first groove 651 is greater than the extension length of the second groove 652. It is advantageous for air to easily enter the second recess 652 from the first recess 651 against the pressure of the liquid matrix.

While according to fig. 8, after assembly, first recess 651 and second recess 652 are covered by sealing element 70, thereby defining together by first recess 651 and second recess 652 an air channel 65 formed between carrier 60 and sealing element 70. And, the sealing member 70 is not covered with the air inlet end and the air outlet end of the air passageway 65 after the sealing member 70 is assembled with the bracket 60. As can be seen in particular from fig. 8 and 10, the lower end of the first recess 651 for inlet air is exposed, and the outlet end of the second recess 652 at the channel surface 611 is also exposed.

In use, referring to fig. 8 and 10, the lower end of the first recess 651 is in airflow communication with the nebulizing chamber 340 through the gap between the support frame 60 and the main housing 10. Then, in use, and thus when the negative pressure in reservoir chamber 12 exceeds a certain threshold, air in aerosolizing chamber 340 and/or first air inlet 23, as indicated by arrow R3 in fig. 8 and 10, can pass through first notch 651, second notch 652, and then into second drain hole 61, and finally into reservoir chamber 12 to relieve the negative pressure in reservoir chamber 12.

As further shown in fig. 7, a plurality of circumferentially extending capillary grooves 66 are also provided in the holder 60. In use, on the one hand, the space of the capillary groove 66 allows sufficient clearance between the support frame 60 and the main housing 10 to provide clearance for the lower end of the first recess 651 to be in airflow communication with the nebulizing chamber 340; on the other hand, the capillary groove 66 itself has a width of about 0.5mm, and can adsorb and hold the aerosol condensate in the atomization chamber 340 by capillary action, thereby preventing the condensate from leaking out of the first air inlet 23.

Or in yet another alternative implementation, the above air channel 65 may also be formed on the inner wall of the sealing element 70 adjacent to the bracket 60. For example, a first groove 651 is formed on the circumferentially extending inner side wall of the seal member 70, and a second groove 652 is formed on the inner top wall of the seal member 70.

In a further preferred embodiment shown in fig. 3 and 10, the outer side wall of the sealing element 70 is provided with a circumferentially extending rib 73; the rib 73 provides an interference fit between the sealing member 70 and the main housing 10 during assembly, and the rib 73 is compressed after assembly to provide a seal. Or in yet other variations, the rib 73 is located on an inner sidewall of the sealing element 70, disposed adjacent to the side surface 620 of the bracket 60; and then after the assembly, the convex rib 73 is pressed by the side surface 620 of the bracket 60 to form an interference fit, so that the sealing effect is improved.

As further shown in fig. 10, the first recess 651 defining the air passage 65 spans the area of the interference fit defined by the rib 73.

It should be noted that the description and drawings of the present application illustrate preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the claims appended to the present application.

Claims

1. An atomizer, comprising a housing; the shell is internally provided with:

a reservoir for storing a liquid substrate;

an atomizing assembly for atomizing a liquid substrate to produce an aerosol;

a sealing element at least partially sealing the reservoir;

2. The atomizer of claim 1, wherein a first recess is provided in a side surface of said support, and said first passage portion is defined between said first recess and said sealing member.

3. The atomizer of claim 2, wherein said first recess has a depth dimension greater than a width dimension.

4. A nebulizer as claimed in any one of claims 1 to 3, wherein the holder has a fluid conducting channel through which the nebulizing assembly is in fluid communication with the reservoir;

5. A nebulizer according to any one of claims 1 to 3, wherein a second recess is provided in the upper surface of the holder, and the second passage portion is defined between the second recess and the sealing member.

6. The atomizer of claim 5, wherein said second recess has a width dimension greater than a depth dimension.

7. A nebulizer according to any one of claims 1 to 3, characterised in that the first channel portion has a different direction of extension than the second channel portion.

8. A nebulizer as claimed in any one of claims 1 to 3, wherein the first channel portion extends for a length greater than the second channel portion.

9. A nebulizer as claimed in any one of claims 1 to 3, wherein the sealing element at least partially envelops the holder and exposes the inlet and/or outlet ends of the air passage.

10. A nebulizer as claimed in any one of claims 1 to 3, wherein the sealing element has an interference fit region for providing a seal between the housing and the holder by interference fit of a partial region; the first channel portion spans the interference fit region.

11. The atomizer of claim 10, wherein said sealing member is provided with a bead at least partially surrounding said sealing member, said interference fit region being defined by said bead.

12. An electronic atomisation device comprising an atomiser for atomising a liquid substrate to generate an aerosol, and a power supply mechanism for powering the atomiser; characterized in that the atomizer comprises an atomizer according to any one of claims 1 to 11.