CN117617590A

CN117617590A - Electronic atomizing device and spraying assembly

Info

Publication number: CN117617590A
Application number: CN202210998148.3A
Authority: CN
Inventors: 杨豪; 高椋; 刘成川
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2024-03-01

Abstract

The invention relates to an electronic atomization device and a spraying assembly, wherein the spraying assembly comprises at least one liquid outlet, a gas supply channel and at least one flow guide channel; the flow guide channel is arranged in the air supply channel and is used for guiding external air flow and enabling the external air flow to form spiral output along the air supply direction of the air supply channel; the diversion channels comprise channel openings for guiding out gas, wherein at least part of the channel openings of one diversion channel are opposite to one of the liquid outlets. The first channel opening of one of the diversion channels is opposite to the liquid outlet, so that aerosol sprayed by the spraying component can be prevented from deflecting, the aerosol sprayed by the spraying component is uniformly distributed on the heating body, overheating of the heating body is avoided, and the atomization efficiency, the safety and the service life of the electronic atomization device are improved.

Description

Electronic atomizing device and spraying assembly

Technical Field

The invention relates to the field of atomization, in particular to an electronic atomization device and an atomization assembly.

Background

The existing electronic atomization device mainly adopts porous ceramics or porous mediums such as porous cotton and the like to combine with heating components to heat and atomize. Because the heating temperature is higher in atomization, when the liquid matrix is not enough to be supplied, a small amount of liquid matrix on the heating component is insufficient to consume the electric energy released by the heating component, so that the temperature of the heating surface is further increased, further thermal cracking of the liquid matrix is further enhanced, even carbon deposition and dry burning are formed, and the formed aerosol is easy to generate burnt smell, so that the taste is obviously deteriorated.

Disclosure of Invention

The invention aims to provide an improved electronic atomization device and an improved atomization component.

The technical scheme adopted for solving the technical problems is as follows: constructing a spray assembly, which comprises at least one liquid outlet, a gas supply channel and at least one diversion channel; the flow guide channel is arranged in the air supply channel and is used for guiding external air flow and enabling the external air flow to form spiral output along the air supply direction of the air supply channel; the diversion channels comprise channel openings for guiding out gas, wherein at least part of the channel openings of one diversion channel are opposite to one of the liquid outlets.

In some embodiments, the diversion channel is helically arranged.

In some embodiments, a flow directing structure is also included; the flow guiding structure is arranged in the air supply channel, and the flow guiding channel is formed between the flow guiding structure and the channel wall of the air supply channel.

In some embodiments, the flow guiding structure comprises a columnar body and at least one flow guiding groove arranged on the outer side wall of the columnar body;

the diversion channels are arranged in one-to-one correspondence with the diversion trenches, and the diversion channels are formed in the diversion trenches.

In some embodiments, the flow guide groove extends along the axial direction of the columnar body and is spirally arranged.

In some embodiments, the plurality of guide grooves are arranged at intervals along the circumferential direction of the columnar body.

In some embodiments, the flow guiding structure comprises a cylindrical body and at least two bosses arranged on the outer side wall of the cylindrical body; each boss extends along the axial direction of the columnar body and is spirally arranged;

at least two bosses are arranged at intervals along the circumferential direction of the columnar body, and the diversion channel is formed between two adjacent bosses at intervals.

In some embodiments, an extension line of a connection line between the boss of the diversion channel and the central axis of the columnar body, which is arranged opposite to the liquid outlet, forms a set included angle with a central line extension line of the liquid outlet;

the set included angle is an oblique angle.

In some embodiments, the set included angle is 30-60 °.

In some embodiments, the cross-sectional dimension of the flow guiding structure is gradually reduced along the air supply direction of the air supply channel.

In some embodiments, the cross-sectional shape and size of the flow directing structure is adapted to the cross-sectional shape and size of the air supply channel.

In some embodiments, the spray assembly further comprises an atomization port and an air inlet port; the air supply channel is formed between the atomizing port and the air inlet, and the cross-sectional area of the air supply channel is gradually reduced from the air inlet toward the atomizing port.

In some embodiments, further comprising a nozzle structure; an atomization cavity is arranged in the nozzle structure;

the air supply channel is arranged in the nozzle structure and communicated with the atomizing cavity;

the liquid outlet is arranged on the side wall of the nozzle structure and is communicated with the atomizing cavity.

The invention also constructs an electronic atomizing device comprising a spray assembly according to the invention.

In some embodiments, the spray assembly further comprises an air outlet channel, and the spray assembly is arranged at one end of the air outlet channel and is used for spraying the atomized medium with small particle size to the air outlet channel.

In some embodiments, the device further comprises a heating component, wherein the heating component is arranged in the air outlet channel and is used for heating the atomizing medium with small particle size sprayed by the spraying component.

The electronic atomization device and the spraying component have the following beneficial effects: the first channel opening of one of the diversion channels is opposite to the liquid outlet, so that aerosol sprayed by the spraying component can be prevented from deflecting, the aerosol sprayed by the spraying component is uniformly distributed on the heating body, overheating of the heating body is avoided, and the atomization efficiency, the safety and the service life of the electronic atomization device are improved.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of an electronic atomizing device according to some embodiments of the present disclosure;

FIG. 2 is a cross-sectional view of the electronic atomizing device shown in FIG. 1;

FIG. 3 is a schematic view of the spray assembly of the electronic atomizing device of FIG. 1;

FIG. 4 is a cross-sectional view of the spray assembly of FIG. 2;

FIG. 5 is a schematic view of the flow directing structure of the spray assembly of FIG. 3;

FIG. 6 is a cross-sectional view of the spray assembly of FIG. 2 in another direction;

FIG. 7 is a gas flow diagram of a spray assembly of a prior art electronic atomizing device;

fig. 8 is a gas flow diagram of a spray assembly of the electronic atomizing device shown in fig. 1.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

Fig. 1 shows a first embodiment of the electronic atomizing device of the present invention. The electronic atomizing device 100 may be used to atomize a liquid substrate to produce an aerosol that may be inhaled or inhaled by a user, which in this embodiment may be generally cylindrical. It is understood that in other embodiments, the electronic atomizing device 100 may have other shapes such as an elliptic cylinder, a flat cylinder, or a square cylinder. The liquid matrix may include tobacco tar or liquid medicine.

As shown in fig. 1 and 2, in the present embodiment, the electronic atomization device 100 includes a spraying component 1 and a liquid storage structure 2; a heat generating component 3; the liquid storage structure 2 stores liquid matrix, the liquid storage structure 2 includes a housing 201 and an air outlet pipe 202, the housing 201 is a hollow structure, the air outlet pipe 202 is disposed at a center axis of the housing 201 and is a through structure with two ends, an air outlet channel 2021 can be formed at the inner side, a space is reserved between the air outlet pipe 202 and the housing 201, and the space forms a liquid storage cavity 203. The spraying component 1 is accommodated on the liquid storage structure 2 and is used for atomizing a liquid matrix in the liquid storage structure 2 to form an atomized medium with small particle size, and then spraying the atomized medium to the heating component 3 to form aerosol for a user to suck through heating of the heating component 3. The heat generating component 3 is disposed in the air outlet passage 2021.

As shown in fig. 3 and 4, in the present embodiment, the spray assembly 1 includes a nozzle structure 10, a gas supply passage 20, and an atomizing chamber 30. The nozzle structure 10 may be cylindrical. The air supply channel 20 and the atomizing chamber 30 are disposed in the nozzle structure 10 and sequentially disposed along the axial direction of the nozzle structure 10, and the air supply channel 20 can be communicated with the atomizing chamber 30 and can be connected with an air pump for supplying high-speed air generated by the air pump to the atomizing chamber 30. The atomizing chamber 30 cuts the liquid atomized substrate at high velocity to form a small particle size aerosol which is output to the air outlet channel 2021.

In this embodiment, the nozzle structure 10 may have a circular cross-section. Of course, it will be appreciated that in other embodiments, the cross-section of the nozzle arrangement 10 may not be limited to being circular, it may be elliptical, rectangular, etc. In the present embodiment, an air inlet 11 is provided at one end of the nozzle structure 10, and the air inlet 11 is used for external air flow into the air supply channel 20. The air inlet 11 may be located at the central axis of the nozzle structure 10. In some embodiments, the air inlet 11 may be a circular hole. Of course, it will be appreciated that in other embodiments, the air inlet 11 may not be limited to a circular aperture, and in other embodiments, the air inlet 11 may be square, oval, or otherwise shaped.

In some embodiments, a partition wall 12 is provided in the nozzle structure 10, the partition wall 12 being operable to separate the atomizing chamber 30 from the air supply passage 20. The partition wall 12 is disposed at the central axis of the nozzle structure 10 and is disposed coaxially with the air inlet 11. The partition wall 12 may be substantially circular. Of course, it will be appreciated that in other embodiments, the partition wall 12 is not limited to being circular, and may be square, oval, or other shapes. In some embodiments, the spray assembly 1 includes an atomization port 121, the atomization port 121 being disposed on the partition 12 in communication with the air supply passage 20 and the atomization chamber 30. The atomizing port 121 can be coaxially disposed with the air inlet 11, and the center of the atomizing port 121 and the center of the air inlet 11 are located on the same axis. The size of the atomizing port 121 is smaller than the size of the air inlet 11. The atomizing port 121 is used for outputting high-speed air flow and cutting a liquid film formed on the atomizing port 121 to form small-particle-size liquid drops, and the liquid drops can be carried away from the atomizing port 121 by the high-speed air flow and then sprayed out along with the air flow to complete an atomization process. In some embodiments, the atomizing port 121 can be circular, although it is understood that in other embodiments, the size of the atomizing port 121 can be limited to circular. The size and shape of the atomizing port 121 can influence the size of the negative pressure in the atomizing chamber 30 and the particle size of the liquid particles to be produced, and can stabilize the flow rate. Specifically, the aperture of the atomizing port 121 is related to the air flow rate (m/s) exiting from the atomizing port 121, which can affect the particle size of the liquid particles produced. In some embodiments, the aperture of the atomizing port 121 may be sized as desired.

In this embodiment, the nozzle structure 10 is provided with a nozzle opening 13 at an end thereof remote from the air inlet 121, and the nozzle opening 13 may be disposed toward the heat generating component for ejecting atomized medium of small droplets. The spray opening 13 may be coaxially disposed with the atomizing opening 121, and the center of the spray opening 13 may be positioned on the same line as the center of the atomizing opening 121. The spout 13 may be generally circular. Of course, it will be appreciated that in other embodiments, the spout 13 may not be limited to being circular, and may be square, oval, or other shapes. The radial dimension of the nozzle 13 may be greater than the radial dimension of the atomizing port 121 in order to increase the output of the small droplet atomizing medium per unit area.

In this embodiment, the spray assembly 1 further includes a liquid outlet 14, specifically, the liquid outlet 14 is disposed on the nozzle structure 10, which is located on a sidewall of the nozzle structure 10, and is disposed between the atomizing opening 121 and the nozzle 13, and is in communication with the atomizing chamber 30. In this embodiment, the distance from the liquid outlet 14 to the atomizing outlet 121 is smaller than the distance from the liquid outlet 14 to the nozzle 13, so that the high-speed air flow sprayed out from the atomizing outlet 121 can generate negative pressure at the liquid outlet 14, and then the liquid matrix in the housing 10 can be sucked out into the atomizing cavity 30, a liquid film is formed on the inner wall surface of the atomizing cavity 30, and along with the continuous process of liquid supply, the liquid film moves until the liquid film moves to the edge of the wall of the atomizing outlet 121 and meets the high-speed air flow, and is cut and atomized into fine liquid particles by the high-speed air flow. In this embodiment, the number of the liquid outlets 14 may be one, but it is understood that in other embodiments, the number of the liquid outlets 14 may be plural, the liquid outlets 14 may be disposed at intervals along the circumference of the nozzle structure 10, and the liquid outlets 14 may be on the same circumference or on different circumferences.

In the present embodiment, the air supply channel 20 may be formed at the central axis of the nozzle structure 10, which is located between the atomizing port 121 and the air inlet 11. In some embodiments, the cross-sectional area of the air supply channel 20 may be gradually reduced from the air inlet 11 toward the atomizing port 121, that is, the air supply channel 20 may have a contracted shape, so as to accelerate the air flow of the air supply mechanism and then spray the air into the atomizing chamber 30. In some embodiments, the air supply channel 20 is a conical channel extending axially along the nozzle structure 10 and having an aperture that gradually decreases from the air inlet 11 toward the atomizing port 121. It will be appreciated that in other embodiments, the air supply channel 20 may have other constrictions such as elliptical cones or pyramids.

In the present embodiment, the atomizing chamber 30 is formed between the partition wall 12 and the nozzle 13. The atomizing chamber 30 is a cylindrical passage with a wall surface perpendicular to the partition wall 12. In the present embodiment, the atomizing chamber 30 includes a communication channel 31 and an expansion channel 32, and the communication channel 30 may be a cylindrical channel, which may be coaxially disposed with the partition wall 12 and communicate with the atomizing port 121. Of course, it will be appreciated that in other embodiments, the communication channel 30 may not be limited to a cylindrical channel, but may be an oval channel or a rectangular parallelepiped channel. The expansion channel 32 is disposed at an end of the communication channel 30 away from the partition wall 12, and may be in a horn shape, and the radial dimension of the expansion channel increases gradually from the communication channel 30 toward the nozzle 13. Of course, it will be appreciated that in other embodiments, the expansion channel 32 may be omitted.

In this embodiment, the spray assembly 1 further includes a liquid supply channel 40, wherein the liquid supply channel 40 is formed on a sidewall of the nozzle structure 10 and is disposed along a radial direction of the nozzle structure 10, one end of the liquid supply channel is communicated with the liquid outlet 14, and the other end of the liquid supply channel is communicable with the liquid storage cavity 203 in the liquid storage structure 2, so that the liquid substrate in the liquid storage cavity 203 is conveniently output to the atomizing cavity 30 along the liquid supply channel 40.

As shown in fig. 4 to 6, in this embodiment, the spray assembly 1 further comprises a flow guiding structure 50. The flow guiding structure 50 is disposed in the air supply channel 20, and is used for guiding external air flow into the air supply channel 20, and enabling the air flow to form rotational flow outputted along the air supply direction bolt of the air supply channel 20. In this embodiment, the cross-sectional dimension of the flow guiding structure 50 is gradually reduced along the air supplying direction of the air supplying channel 20, and the cross-sectional shape and dimension thereof can be adapted to the cross-sectional shape and dimension of the air supplying channel 20, so as to be closely connected to the inner wall of the air supplying channel 20. Specifically, in the present embodiment, the flow guiding structure 50 may be integrally formed in a shape of a truncated cone, and of course, it is understood that in other embodiments, the flow guiding structure 50 may not be limited to be formed in a shape of a truncated cone. In this embodiment, the flow guiding structure 50 may be integrally formed with the nozzle structure 10, and in particular, the flow guiding structure 50 may be integrally formed with the nozzle structure 10 by injection molding. Of course, it will be appreciated that in other embodiments, the deflector structure 50 may be removably mounted to the nozzle structure 10.

In this embodiment, the flow guiding structure 50 includes a cylindrical body 51 and four bosses 52. The four bosses 52 are disposed on the outer sidewall of the cylindrical body 51, and are disposed at intervals along the circumferential direction of the cylindrical body 51. Each boss 52 may extend in the axial direction of the cylindrical body 51 and be spirally disposed. It will be appreciated that in other embodiments, the boss 52 may not be limited to four, and in other embodiments, the boss 52 may be two or more than two. In this embodiment, the flow guiding structure 50 further includes four flow guiding grooves 53, and the four flow guiding grooves 53 are disposed on the outer sidewall of the pillar 51 and are disposed at intervals along the circumferential direction of the pillar 51. Specifically, each of the flow guide grooves 53 is formed between the two bosses 52. The diversion trench 53 may extend along the axial direction of the column 51 and be spirally disposed. It will be appreciated that in some embodiments, the flow channels 53 may not be limited to four, and may be less than four or greater than four. In this embodiment, the spray assembly 1 further comprises a flow guide channel 54 disposed in the air supply channel 20. The flow guiding channel 54 is formed on the flow guiding structure 50 and is spirally arranged for guiding an external air flow and enabling the external air flow to form a rotational flow spirally output along the air supplying direction of the air supplying channel 20, so that the jet flow which is originally energy concentrated in the central area of the atomizing port 121 through the air supplying channel 20 is changed into rotational flow with tangential velocity which is energy concentrated in the edge of the atomizing port 121, and the air flow speed of the atomizing port 121 for cutting the liquid film is higher, and the energy is larger. Meanwhile, under the same input air flow condition, the energy utilization rate is higher, the particle size is smaller, the axial jet flow speed is lower, and the design of the heating component is facilitated. In this embodiment, the diversion channels 54 are disposed in one-to-one correspondence with the diversion trenches 53, and the diversion channels 54 are formed in the diversion trenches 53, that is, between two adjacent bosses 52, and are formed by the interval between two adjacent bosses 52. In other embodiments, the diversion channel 54 is not limited to be formed in the diversion trench 53, and in other embodiments, the diversion trench 53 can be omitted, and the diversion channel 54 can be formed in a diversion hole provided on the pillar 51.

In this embodiment, the diversion tunnel 54 includes a tunnel opening 541, which is formed by a notch of the diversion trench 53, which can be used to conduct out gas. In this embodiment, one of the diversion trenches 53 may be disposed opposite to the liquid outlet 14, that is, the passage opening 541 of one of the diversion trenches 54 is at least partially disposed opposite to the liquid outlet 14, and at least part of the passage opening 541 of the diversion trench 54 is in the same line with one of the liquid outlets 14. Since the liquid outlet 14 is disposed at one side, the relative positions of the diversion trench 53 and the liquid outlet affect the spray distribution, and when the channel opening 541 intersects with the liquid outlet 14, the aerosol distribution ejected from the nozzle 13 is corrected. When boss 52 intersects outlet 14, spray deflection results.

In this embodiment, an extension line of a line connecting the boss 52 forming the diversion channel 54 opposite to the liquid outlet 14 and the central axis of the columnar body 51 forms a set angle α with an extension line of the central line of the liquid outlet 14, specifically, the set angle α is an oblique angle of 60 °, and in some embodiments, the set angle α is any angle of 30-60 °. As can be seen from comparing fig. 7 and 8, the spray deflection can be avoided by setting an included angle of 60 °, thereby being beneficial to avoiding overheat of the heating element and improving the safety of the electronic atomization device. The boss 52 in fig. 8 is opposite to the liquid outlet 14, and the atomized medium of the droplets sprayed from the nozzle 13 deflects, so that the droplets on the heating element 3 are unevenly distributed, and the heating element of the heating element 3 is overheated.

It is to be understood that the above examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A spray assembly comprising at least one liquid outlet (14), a gas supply channel (20) and at least one flow guide channel (54); the flow guide channel (54) is arranged in the air supply channel (20) and is used for guiding external air flow and enabling the external air flow to form output along the air supply direction of the air supply channel (20); the diversion channels (54) comprise channel openings (541) for the outgoing gas, wherein the channel openings (541) of one diversion channel (54) are at least partially arranged opposite to one of the liquid outlets (14).

2. The spray assembly of claim 1, wherein the diversion channel (54) is helically disposed.

3. The spray assembly of claim 1, further comprising a deflector structure (50); the flow guiding structure (50) is arranged in the air supply channel (20), and the flow guiding channel (54) is formed between the flow guiding structure (50) and the channel wall of the air supply channel (20).

4. A spray assembly according to claim 3, wherein the flow guiding structure (50) comprises a cylindrical body (51) and at least one flow guiding groove (53) arranged on an outer side wall of the cylindrical body (51);

the diversion channels (54) are arranged in one-to-one correspondence with the diversion trenches (53), and the diversion channels (54) are formed in the diversion trenches (53).

5. A spray assembly according to claim 4, wherein the flow guide groove (53) extends in the axial direction of the cylindrical body (51) and is arranged helically.

6. The spray assembly according to claim 4, wherein the number of the diversion trenches (53) is plural, and the diversion trenches (53) are arranged at intervals along the circumferential direction of the columnar body (51).

7. A spray assembly according to claim 3, wherein the flow guiding structure (50) comprises a cylindrical body (51) and at least two bosses (52) provided on an outer side wall of the cylindrical body (51); each boss (52) extends along the axial direction of the columnar body (51) and is spirally arranged;

at least two bosses (52) are arranged at intervals along the circumferential direction of the columnar body (51), and the diversion channels (54) are formed at intervals between two adjacently arranged bosses (52).

8. The spray assembly according to claim 7, wherein an extension line of a line between the boss (52) forming the diversion channel (54) arranged opposite to the liquid outlet (14) and the central axis of the columnar body (51) forms a set included angle with a central line extension line of the liquid outlet (14);

the set included angle is an oblique angle.

9. The spray assembly of claim 8 wherein said set included angle is 30-60 °.

10. A spray assembly according to claim 3, characterized in that the cross-sectional dimension of the flow guiding structure (50) is arranged to decrease gradually in the direction of the air supply channel (20).

11. Spray assembly according to claim 10, wherein the cross-sectional shape and size of the flow guiding structure (50) is adapted to the cross-sectional shape and size of the air supply channel (20).

12. A spray assembly according to claim 1, characterized in that the spray assembly further comprises an atomizing port (121) and an air inlet port (11); the air supply passage (20) is formed between the atomizing port (121) and the air inlet (11), and the cross-sectional area of the air supply passage (20) is gradually reduced from the air inlet (11) toward the atomizing port (121).

13. A spray assembly according to claim 1, further comprising a nozzle arrangement (10); an atomization cavity (30) is arranged in the nozzle structure (10);

the air supply channel (20) is arranged in the nozzle structure (10) and is communicated with the atomizing cavity (30);

the liquid outlet (14) is arranged on the side wall of the nozzle structure (10) and is communicated with the atomizing cavity (30).

14. An electronic atomizing device, characterized in that it comprises a spray assembly (1) according to any one of claims 1 to 13.

15. The electronic atomizing device according to claim 14, further comprising an air outlet channel (2021), wherein the atomizing assembly (1) is disposed at one end of the air outlet channel (2021) for ejecting an atomized medium having a small particle diameter toward the air outlet channel (2021).

16. The electronic atomizing device according to claim 14, further comprising a heat generating component (3), said heat generating component (3) being disposed in said air outlet channel (2021) for heating the atomizing medium of small particle size ejected from said atomizing component (1).