EP3597056A1

EP3597056A1 - Ultrasonic electronic cigarette atomizer

Info

Publication number: EP3597056A1
Application number: EP18784756.1A
Authority: EP
Inventors: Jianfu Liu; Kejun ZHONG; Xiaoyi Guo; Wei Huang; Hong Yu; Yuangang DAI; Xinqiang YIN; Jianhua Yi; Yang Wang; Yongquan ZHOU
Original assignee: China Tobacco Hunan Industrial Co Ltd
Current assignee: China Tobacco Hunan Industrial Co Ltd
Priority date: 2017-04-13
Filing date: 2018-04-13
Publication date: 2020-01-22
Anticipated expiration: 2038-04-13
Also published as: EP3597056B1; EP3597056A4; WO2018188638A1

Abstract

The present invention discloses an ultrasonic electronic cigarette atomizer, comprising an ultrasonic atomization sheet (1), an air inlet passage (2) and an air outlet passage (3).The air inlet passage (2) spans an atomization region of the ultrasonic atomization sheet (1) and then is communicated with the air outlet passage (3); the air flow direction of the air inlet passage (2) in the atomization region of the ultrasonic atomization sheet (1) is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet (1); the ultrasonic electronic cigarette atomizer further comprises an e-liquid cup (4); the ultrasonic atomization sheet (1) is disposed in the e-liquid cup (4); an inner cavity of the e-liquid cup (4) is connected to an atomization surface of the ultrasonic atomization sheet (1) through an e-liquid guide structure; the atomization surface of the ultrasonic atomization sheet (1) is opposite to an e-liquid recovery structure; and the e-liquid recovery structure is connected to the ultrasonic atomization sheet (1) through the e-liquid guide structure. With the atomizer, it is not easy for the user to suck large particles of e-liquid; the large particles of e-liquid splashed can be recycled, so the utilization rate of the e-liquid is high; the ultrasonic atomization sheet is not easily immersed in the e-liquid, so the atomization start speed is fast.

Description

Field of the Invention

The present invention belongs to the technical field of electronic cigarettes, and particularly relates to an ultrasonic electronic cigarette atomizer.

Background of the Invention

At present, in an ultrasonic electronic cigarette atomizer, particularly in an ultrasonic electronic cigarette atomizer in which an ultrasonic atomization sheet is placed horizontally (i.e., the ultrasonic atomization sheet is perpendicular to the length direction of an electronic cigarette), an air outlet tube communicated with a suction nozzle is disposed above the center of an atomization surface of the ultrasonic atomization sheet, and air flow enters from four sides of the atomization surface of the ultrasonic atomization sheet, exits from the air outlet tube above an atomization region of the ultrasonic atomization sheet, and enters the mouth of a smoker from the suction nozzle.
In the above structure, since the smoke spraying direction of the ultrasonic atomization sheet is opposite to an inlet of the air outlet tube, when the ultrasonic atomization sheet is operated, smoke is sprayed toward the inlet of the air outlet tube. Therefore, the user easily sucks large particles of sprayed e-liquid during smoking, resulting in poor user experience.
In addition, the air inlet of the existing atomizer is disposed at a random position. Generally, the air inlet is far away from the ultrasonic atomization sheet. When excessive e-liquid is accumulated on the ultrasonic atomization sheet, the e-liquid accumulated on the ultrasonic atomization sheet cannot be discharged from the air inlet by means of blowing or shaking, so the ultrasonic atomization sheet is easily immersed in the e-liquid, and the atomizer has short service life and high use cost.
The smoke spraying direction of the existing ultrasonic atomization sheet is opposite to the inlet of the air outlet tube, so that the user easily sucks large particles of e-liquid; the air inlet is disposed at a random position and the ultrasonic atomization sheet is far away, so that the user cannot clear excessive e-liquid on the ultrasonic atomization sheet through the air inlet, and the ultrasonic atomization sheet is easily immersed in the e-liquid. For the deficiencies of the prior art, an objective of the present invention is to provide an ultrasonic electronic cigarette atomizer, so that it is not easy for the user to suck large particles of e-liquid, the user can clear e-liquid accumulated on the ultrasonic atomization sheet through the air inlet by means of blowing or shaking, and the ultrasonic atomization sheet is not easily immersed in the e-liquid.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
An ultrasonic electronic cigarette atomizer, comprising an ultrasonic atomization sheet, an air inlet passage, and an air outlet passage, wherein the air inlet passage spans an atomization region of the ultrasonic atomization sheet and then is communicated with the air outlet passage, and the air flow direction of the air inlet passage in the atomization region of the ultrasonic atomization sheet is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet.
With the above structure, large particles of e-liquid splashed when the ultrasonic atomization sheet is started can be prevented from directly reaching the user's mouth, and the user sucks only small particles of smoke, so the mouthfeel of the smoke and the user experience are good.
Further, the ultrasonic electronic cigarette atomizer also comprises an e-liquid cup, the ultrasonic atomization sheet is disposed in the e-liquid cup, and the inner cavity of the e-liquid cup is connected to an atomization surface of the ultrasonic atomization sheet through an e-liquid guide structure; the atomization surface of the ultrasonic atomization sheet is opposite to an e-liquid recovery structure, and the e-liquid recovery structure is connected to the ultrasonic atomization sheet through the e-liquid guide structure.
With the above structure, large particles of e-liquid splashed when the ultrasonic atomization sheet is started can be absorbed by the e-liquid recovery structure, and the large particles of e-liquid absorbed by the e-liquid recovery structure can be guided to the ultrasonic atomization sheet through the e-liquid guide structure for reuse, so the utilization rate of e-liquid is high.
Further, the ultrasonic atomization sheet is perpendicular to the length direction of an electronic cigarette, the top surface of the ultrasonic atomization sheet is the atomization surface, and the air inlet passage is tangent to the top surface of the ultrasonic atomization sheet.
With the above structure, the air inlet of the air inlet passage is closer to the atomization surface of the ultrasonic atomization sheet, and when excessive e-liquid is accumulated on the atomization surface, the excessive e-liquid can be discharged from the air inlet by blowing or shaking, so that the ultrasonic atomization sheet is prevented from being immersed in the e-liquid, the service life of the ultrasonic atomization sheet is prolonged, and the use cost is lowered. At the same time, when the atomizer does not emit smoke and needs troubleshooting, the phenomenon of atomization failure caused by immersion of the ultrasonic atomization sheet in the e-liquid can be eliminated.
As a preferred mode, an atomization seat is disposed at the bottom of the e-liquid cup, and the ultrasonic atomization sheet is fixed in the atomization seat; the e-liquid guide structure comprises an e-liquid storage cotton and a U-shaped e-liquid guide cotton sheet, the e-liquid storage cotton is fixed in an opening at the top of the atomization seat to form the e-liquid recovery structure, the top surface of the e-liquid storage cotton is communicated with the inner cavity of the e-liquid cup, and the bottom surface of the e-liquid storage cotton is opposite to the atomization region of the ultrasonic atomization sheet; two opposite sides of the U-shaped e-liquid guide cotton sheet are connected to the e-liquid storage cotton, and the outer of a third side of the U-shaped e-liquid guide cotton sheet abuts against the ultrasonic atomization sheet. With the above structure, the e-liquid storage cotton can absorb large particles of e-liquid splashed when the ultrasonic atomization sheet is started, and the large particles of e-liquid absorbed by the e-liquid storage cotton can be guided to the ultrasonic atomization sheet through the U-shaped e-liquid guide cotton sheet for reuse, so the utilization rate of e-liquid is high.
Further, the ultrasonic electronic cigarette atomizer also comprises an elastic connector, the bottom end of the elastic connector abuts against the inner of the third side of the U-shaped e-liquid guide cotton sheet, and the top end of the elastic connector abuts against the inner wall of the atomization seat.
With the above structure, deformation of the U-shaped e-liquid guide cotton sheet can be prevented. Meanwhile, since the top end of the elastic connector does not directly abut against the e-liquid storage cotton, the e-liquid storage cotton can be prevented from dropping out. The elastic connector may be a spring or the like.
As another preferred mode, the ultrasonic atomization sheet is perpendicular to the length direction of the electronic cigarette, the bottom surface of the ultrasonic atomization sheet is the atomization surface, and the air inlet passage is tangent to the bottom surface of the ultrasonic atomization sheet.
As another preferred mode, an atomization seat is disposed at the top of the e-liquid cup, and the ultrasonic atomization sheet is fixed in the atomization seat; the e-liquid guide structure comprises an e-liquid guide cotton tube, an e-liquid storage cotton, and a U-shaped e-liquid guide cotton sheet, wherein an e-liquid guide tube is vertically disposed in the e-liquid cup, the side wall of the e-liquid guide tube is provided with a plurality of e-liquid passing holes, and the e-liquid guide cotton tube is sleeved in the e-liquid guide tube; the e-liquid storage cotton is fixed in an opening at the bottom of the atomization seat to form the e-liquid recovery structure, the bottom surface of the e-liquid storage cotton is connected to the top end of the e-liquid guide cotton tube, and the top surface of the e-liquid storage cotton is opposite to the atomization region of the ultrasonic atomization sheet; two opposite sides of the U-shaped e-liquid guide cotton sheet are connected to the e-liquid storage cotton, and the outer of the third side of the U-shaped e-liquid guide cotton sheet abuts against the ultrasonic atomization sheet.
Since the e-liquid chamber is disposed under the e-liquid storage cotton, the e-liquid accumulated on the ultrasonic atomization sheet can be effectively reduced under the action of gravity, and the atomization start speed is improved; since the bottom of the e-liquid chamber is sealed, the probability of e-liquid leakage is also reduced.
Further, the ultrasonic electronic cigarette atomizer further comprises an elastic connector, the top end of the elastic connector abuts against the inner of the third side of the U-shaped e-liquid guide cotton sheet, and the bottom end of the elastic connector abuts against the inner wall of the atomization seat.
As a third preferred mode, the e-liquid cup is partitioned into an upper liquid storage chamber and a lower atomization chamber by a partition plate, an opening at the lower end of the atomization chamber is sealed by a base, the ultrasonic atomization sheet is disposed in the atomization chamber, the lower surface of the ultrasonic atomization sheet is in contact with an e-liquid guide layer, an e-liquid recovery cell for recovering e-liquid droplets is disposed in the base, the lower surface of the ultrasonic atomization sheet faces the e-liquid recovery cell, and the e-liquid recovery cell forms the e-liquid recovery structure; the e-liquid guide layer is sequentially communicated with the e-liquid recovery cell and the liquid storage chamber, and the bottom surface of the ultrasonic atomization sheet is the atomization surface.
The e-liquid guide layer is in contact with the lower surface of the ultrasonic atomization sheet, smoke is ejected from the lower surface of the ultrasonic atomization sheet, and air flow passes through the lower surface of the ultrasonic atomization sheet and brings the smoke into the user's mouth, so that large particles of e-liquid are prevented from being directly carried into the user's mouth by the air flow, and the smoke is carried away more thoroughly. The liquid storage chamber is located above the ultrasonic atomization sheet, so that the e-liquid can flow into the e-liquid guide layer through its own gravity.
The e-liquid recovery cell is disposed on the base,the condensed large particles of e-liquid flow into the e-liquid recovery cell, and the e-liquid droplets flowing into the e-liquid recovery cell are absorbed by the e-liquid guide layer and then guided onto the ultrasonic atomization sheet for ultrasonic atomization, so that the utilization rate of the e-liquid can be improved, and the problem of immersion of the ultrasonic atomization sheet in the e-liquid can also be solved.
Further, an atomization seat matched with the atomization chamber in size is mounted in the atomization chamber, and the ultrasonic atomization sheet is tightly fixed in the atomization seat.
Further, the top end of the atomization seat is in contact with the partition platein a sealed way, the bottom end of the atomization seat abuts against the bottom surface of the e-liquid recovery cell, the e-liquid guide layer comprises a connecting portion in contact with the lower surface of the ultrasonic atomization sheet and a liquid guide portion connected to the connecting portion, a cell body and through holes for mounting the liquid guide portion are respectively disposed on the bottom end and side wall of the atomization seat, and the liquid guide portion passes through the cell body and the through holes sequentially and then is communicated with an e-liquid outlet on the partition plate.
Further, an elastic connector is disposed between the e-liquid recovery cell and the connecting portion,one end of the elastic connector is fixed on the inner bottom surface of the e-liquid recovery cell, and the other end abuts against the lower surface of the connecting portion.
Further, the e-liquid recovery cell is provided with a boss at a positionunder the connecting portion, the bottom end of the atomization seat is provided with an air passing groove matching the boss, the boss is caught in the air passing groove and a gap is reserved between the boss and the air passing groove, the air inlet passage and the air outlet passage are both disposed in the side wall of the e-liquid cup, one end of the gap is communicated with the air inlet passage, the other end of the gap is communicated with the air outlet passage, and the gap is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet.
With the above structure, the air inlet passage and the air outlet passage are disposed in the side wall of the e-liquid cup, and the air inlet passage, the air outlet passage, and the gap form a U-shaped air flow passage, which prevents the user from sucking the e-liquid more effectively and improves the user experience. Since the boss is higher than the inner bottom surface of the e-liquid recovery cell, when the air flow passes through the gap, the e-liquid droplets are not brought along with the smoke to the user's mouth, thereby improving the user experience.
Further, bevels are disposed on the circumference of the boss.
The bevels can facilitate e-liquid droplets adhered to the surface of the boss flowing into the e-liquid recovery cell.
As a preferred mode, an upper opening of the liquid storage chamber is closed by an e-liquid cup cover, the top end of side wall of the liquid storage chamber is connected to a nozzle holder in a sealed way, the end surface of the nozzle holder is provided with at least one air inlet communicated with the air inlet passage, and a suction nozzle is fixed to the nozzle holder and communicated with the air outlet passage. Further, the air inlet passage and the air outlet passage are symmetrically arranged by taking the central axis of the e-liquid cup as a symmetric line, the upper opening of the liquid storage chamber is closed by the e-liquid cup cover, the top end of side wall of the liquid storage chamber is connected to the nozzle holder in a sealed way, the suction nozzle is fixed to the nozzle holder, the top end of the e-liquid cup cover is provided with a first limiting slot corresponding to the air inlet passage and a second limiting slot corresponding to the air outlet passage, and the first limiting slot and the second limiting slot have the same structure; a nozzle holder chamber communicated with the air inlet passage is formed in the nozzle holder, a raised portion matching the second limiting slot is disposed in the nozzle holder chamber, the raised portion is inserted into the limiting slot, an air hole for communicating the suction nozzle with the air outlet passage is provided inside the raised portion, and the end surface of the nozzle holder is provided with at least one air inlet communicated with the nozzle holder chamber.
With the above structure, when the nozzle holder is assembled, it is not necessary to specifically limit which limiting slot the raised portion is connected to, and the air passage corresponding to the limiting slot connected with the raised portion is the air outlet passage, so that the assembly is convenient and the assembly cost is lowered. Compared with the prior art, the present invention has the advantages that it is not easy for the user to suck large particles of e-liquid; the large particles of e-liquid splashed can be recycled, so the utilization rate of the e-liquid is high, and the use cost is low; the e-liquid accumulated on the ultrasonic atomization sheet can be discharged through the air inlet by means of blowing or shaking, so that the ultrasonic atomization sheet is not easily immersed in the e-liquid, and the atomization start speed is fast.

Brief Description of the Drawings

FIG. 1 is a schematic diagram of the profile of Embodiment 1 according to the present invention.
FIG. 2 is an A-A sectional view of FIG. 1.
FIG. 3 is a B-B sectional view of FIG. 2.
FIG. 4 is an exploded view of components of Embodiment 1.
FIG. 5 is the upper half of the exploded view of Embodiment 1.
FIG. 6 is the lower half of the exploded view of Embodiment 1.
FIG. 7 is a schematic view of the profile of Embodiment 2 according to the present invention.
FIG. 8 is a C-C sectional view of FIG. 7.
FIG. 9 is a D-D sectional view of FIG. 8.
FIG. 10 is an exploded view of components of Embodiment 2.
FIG. 11 is the upper half of the exploded view of Embodiment 2.
FIG. 12 is the lower half of the exploded view of Embodiment 2.
FIG. 13 is a structural schematic diagram of Embodiment 2 according to the present invention.
FIG. 14 is a schematic diagram of an air flow direction of Embodiment 3.
FIG. 15 is an exploded view of components of Embodiment 3.
FIG. 16 is a structural schematic diagram of an atomization seat in FIG. 13.

In which, I upper cover assembly, II e-liquid cup assembly, III atomization assembly, IV base assembly, 1 ultrasonic atomization sheet, 2 air inlet passage, 3 air outlet passage, 4 e-liquid cup, 401 partition plate, 4011 e-liquid outlet, 402 liquid storage chamber, 403 atomization chamber, 5 atomization seat, 501 accommodating cell, 502 cell body, 503 through hole, 504 air passing groove, 6 e-liquid storage cotton, 7 U-shaped e-liquid guide cotton sheet, 8 elastic connector, 9 e-liquid guide cotton tube, 10 e-liquid guide tube, 101 e-liquid passing hole, 11 e-liquid cup cover, 1101 first limiting slot, 1102 second limiting slot, 12 upper cover, 13 sealing sleeve, 14 sealing gasket, 15 lower spring electrode, 16 base, 1601 e-liquid recovery cell, 1602 boss, 17 insulating ring, 18 lower electrode, 19 screw, 20 upper spring electrode, 21 electrode ring, 22 sealing ring, 23 electrode column, 24 bottom cover, 26 raised portion, 27 air passing hole, 28 e-liquid plug, 30 first electrode, 31 second electrode, 32 nozzle holder chamber, 33 e-liquid guide layer, 3301 connecting portion, 3302 liquid guide portion, 34 gap, 35 nozzle holder, 36 air inlet, 37 suction nozzle.

Detailed Description of Embodiments

Embodiment

1

As shown in FIG. 1 to FIG. 6, Embodiment 1 of the present invention comprises an ultrasonic atomization sheet 1, an air inlet passage 2, and an air outlet passage 3. The ultrasonic atomization sheet 1 is a solid piezoelectric ceramic sheet. The air inlet passage 2 spans an atomization region of the ultrasonic atomization sheet 1 and then is communicated with the air outlet passage 3, and the air flow direction of the air inlet passage 2 in the atomization region of the ultrasonic atomization sheet 1 is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet 1. The direction indicated by the arrows in FIG. 3 is the air flow direction. Embodiment 1 further comprises an e-liquid cup 4, the ultrasonic atomization sheet 1 is disposed in the e-liquid cup 4, and the inner cavity of the e-liquid cup 4 is connected to an atomization surface of the ultrasonic atomization sheet 1 through an e-liquid guide structure. The atomization surface of the ultrasonic atomization sheet 1 is opposite to an e-liquid recovery structure, and the e-liquid recovery structure is connected to the ultrasonic atomization sheet through the e-liquid guide structure. The ultrasonic atomization sheet 1 is perpendicular to the length direction of an electronic cigarette, the top surface of the ultrasonic atomization sheet 1 is the atomization surface, and the air inlet passage 2 is tangent to the top surface of the ultrasonic atomization sheet 1.
The air outlet passage 3 is disposed on a side of the e-liquid cup 4, so that the e-liquid cup 4 and the air outlet passage 3 can be integrally formed to reduce the production cost and expand the capacity of the e-liquid cup. The bottom of the e-liquid cup 4 is provided with a small cavity (not shown) for mounting an atomization seat 5, the small cavity is provided with an e-liquid outlet (not shown) communicated with the inner cavity of the e-liquid cup 4, and the ultrasonic atomization sheet 1 is fixed in the atomization seat 5. The e-liquid guide structure comprises an e-liquid storage cotton 6 and a U-shaped e-liquid guide cotton sheet 7, the e-liquid storage cotton 6 is fixed in an opening at the top of the atomization seat 5 to form the e-liquid recovery structure, the top surface of the e-liquid storage cotton 6 is communicated with the inner cavity of the e-liquid cup 4 through the e-liquid outlet, and the bottom surface of the e-liquid storage cotton 6 is opposite to the atomization region of the ultrasonic atomization sheet 1. Two opposite sides of the U-shaped e-liquid guide cotton sheet 7 are connected to the e-liquid storage cotton 6, and the outer of a third side of the U-shaped e-liquid guide cotton sheet 7 abuts against the ultrasonic atomization sheet 1.
Embodiment 1 further comprises an elastic connector 8, the bottom end of the elastic connector 8 abuts against the inner of the third side of the U-shaped e-liquid guide cotton sheet 7, and the top end of the elastic connector 8 abuts against the inner wall of the atomization seat 5. The elastic connector 8 is a spring.
An e-liquid cup cover 11 is disposed on the e-liquid cup 4.
As shown in FIG. 4 to FIG. 6, the entire Embodiment 1 is composed of an upper cover assembly I, an e-liquid cup assembly II, an atomization assembly III, and a base assembly IV which are detachable. The upper cover assembly 1 comprises an e-liquid cup cover 11 and an upper cover 12 with a suction nozzle; the e-liquid cup assembly II comprises a sealing sleeve 13, a sealing gasket 14, and the e-liquid cup 4, wherein the sealing sleeve 13 is disposed between an outlet end of the air outlet passage 3 and the inner wall of an air passing hole of the upper cover 12 communicated with the suction nozzle, and the sealing gasket 14 is disposed between the top of the e-liquid cup 4 and the upper cover 12; the atomization assembly III comprises the e-liquid storage cotton 6, the elastic connector 8, the U-shaped e-liquid guide cotton sheet 7, the atomization seat 5, and the ultrasonic atomization sheet 1; the base assembly IV comprises a lower spring electrode 15, a base 16, an insulating ring 17, and a lower electrode 18, wherein the base 16 is detachably connected to the bottom of the upper cover 12, the lower electrode 18 abuts against the bottom surface of the ultrasonic atomization sheet 1 through the lower spring electrode 15, and the lower electrode 18 is connected to the base 16 in an insulated way by the insulating ring 17. The atomization assembly III is clamped in the base assembly IV, and the upper cover assembly I, the e-liquid cup assembly II and the base assembly IV are detachably connected by screws 19.

Embodiment 2

As shown in FIG. 7 to FIG. 12, Embodiment 2 of the present invention comprises an ultrasonic atomization sheet 1, an air inlet passage 2, and an air outlet passage 3. The ultrasonic atomization sheet 1 is a solid piezoelectric ceramic sheet. The air inlet passage 2 spans an atomization region of the ultrasonic atomization sheet 1 and then is communicated with the air outlet passage 3, and the air flow direction of the air inlet passage 2 in the atomization region of the ultrasonic atomization sheet 1 is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet 1. The direction indicated by the arrows in FIG. 8 is the air flow direction. Embodiment 2 further comprises an e-liquid cup 4, the ultrasonic atomization sheet 1 is disposed in the e-liquid cup 4, and the inner cavity of the e-liquid cup 4 is connected to an atomization surface of the ultrasonic atomization sheet 1 through an e-liquid guide structure. The atomization surface of the ultrasonic atomization sheet 1 is opposite to an e-liquid recovery structure, and the e-liquid recovery structure is connected to the ultrasonic atomization sheet through the e-liquid guide structure. The direction indicated by the arrows in FIG. 9 is an e-liquid passage direction.
The ultrasonic atomization sheet 1 is perpendicular to the length direction of an electronic cigarette, the bottom surface of the ultrasonic atomization sheet 1 is the atomization surface, and the air inlet passage 2 is tangent to the bottom surface of the ultrasonic atomization sheet 1.
An atomization seat 5 is disposed at the top of the e-liquid cup 4, and the ultrasonic atomization sheet 1 is fixed in the atomization seat 5; the e-liquid guide structure comprises an e-liquid guide cotton tube 9, an e-liquid storage cotton 6, and a U-shaped e-liquid guide cotton sheet 7, wherein an e-liquid guide tube 10 is vertically disposed in the e-liquid cup 4, the side wall of the e-liquid guide tube 10 is provided with a plurality of e-liquid passing holes, and the e-liquid guide cotton tube 9 is sleeved in the e-liquid guide tube 10; the e-liquid storage cotton 6 is fixed in an opening at the bottom of the atomization seat 5 to form the e-liquid recovery structure, the bottom surface of the e-liquid storage cotton 6 is connected to the top end of the e-liquid guide cotton tube 9, and the top surface of the e-liquid storage cotton 6 is opposite to the atomization region of the ultrasonic atomization sheet 1; two opposite sides of the U-shaped e-liquid guide cotton sheet 7 are connected to the e-liquid storage cotton 6, and the outer of a third side of the U-shaped e-liquid guide cotton sheet 7 abuts against the ultrasonic atomization sheet 1.
Embodiment 2 further comprises an elastic connector 8, the top end of the elastic connector 8 abuts against the inner of the third side of the U-shaped e-liquid guide cotton sheet 7, and the bottom end of the elastic connector 8 abuts against the inner wall of the atomization seat 5. The elastic connector 8 is a spring.
An e-liquid cup cover 11 is disposed on the e-liquid cup 4.
As shown in FIG. 10 to FIG. 12, the entire Embodiment 2 is composed of an upper cover assembly I, an atomization assembly III, an e-liquid cup assembly II, and a base assembly IV which are detachable. The upper cover assembly 1 comprises an upper spring electrode 20 and an upper cover 12 with a suction nozzle, and the upper spring electrode 20 is embedded in the upper cover 12 and can abut against the top surface of the ultrasonic atomization sheet 1; the atomization assembly III comprises anatomization seat 5, anU-shaped e-liquid guide cotton sheet 7, anelastic connector 8, an electrode ring 21, and ane-liquid storage cotton 6, wherein the electrode ring 21 is connected to the top surface of the ultrasonic atomization sheet 1; the e-liquid cup assembly II comprises sealing rings 22, ane-liquid cup 4, an e-liquid guide tube 10, an e-liquid guide cotton tube 9, an electrode column 23,an e-liquid cup cover 11, and a bottom cover 24, wherein the electrode column 23 is sleeved in the e-liquid guide cotton tube 9 and electrically connected to the ultrasonic atomization sheet 1, the bottom cover 24 is used for sealing the bottom of the e-liquid cup 4, and the e-liquid cup cover 11 is disposed on the bottom cover 24; the base assembly IV comprises a base 16, a lower spring electrode 15, an insulating ring 17, and a lower electrode 18, wherein the lower electrode 18 abuts against the bottom surface of the electrode column 23 through the lower spring electrode 15, and the lower electrode 18 is connected to the base 16 in an insulated way by the insulating ring 17.

Embodiment 3

As shown in FIG. 13 to FIG. 16, Embodiment 3 of the present invention comprises an ultrasonic atomization sheet 1, an air inlet passage 2, and an air outlet passage 3. The ultrasonic atomization sheet 1 is a solid piezoelectric ceramic sheet. The air inlet passage 2 spans an atomization region of the ultrasonic atomization sheet 1 and then is communicated with the air outlet passage 3, and the air flow direction of the air inlet passage 2 in the atomization region of the ultrasonic atomization sheet 1 is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet 1. The direction indicated by the arrows in FIG. 14 is the air flow direction. Embodiment 3further comprises an e-liquid cup 4, the ultrasonic atomization sheet 1 is disposed in the e-liquid cup 4, and the inner cavity of the e-liquid cup 4 is connected to an atomization surface of the ultrasonic atomization sheet 1 through an e-liquid guide structure. The atomization surface of the ultrasonic atomization sheet 1 is opposite to an e-liquid recovery structure, and the e-liquid recovery structure is connected to the ultrasonic atomization sheet through the e-liquid guide structure. The e-liquid cup 4 is partitioned into an upper liquid storage chamber 402 and a lower atomization chamber 403 by a partition plate 401, an opening at the lower end of the atomization chamber 403 is sealed by a base 16, and the ultrasonic atomization sheet 1 is disposed in the atomization chamber 403. A first electrode 30 and a second electrode 31 connected with an external power supply to drive the ultrasonic atomization sheet 1 to oscillate are mounted at the bottom end of the base 16. The lower surface of the ultrasonic atomization sheet 1 is in contact with an e-liquid guide layer 33, and the e-liquid guide layer 33 is an atomization cotton layer. An e-liquid recovery cell 1601 for recovering e-liquid droplets is disposed in the base 16, the lower surface of the ultrasonic atomization sheet 1 faces the e-liquid recovery cell 1601, and the e-liquid recovery cell 1601 forms the e-liquid recovery structure. The e-liquid guide layer 33 is sequentially communicated with the e-liquid recovery cell 1601 and the liquid storage chamber 402, and the bottom surface of the ultrasonic atomization sheet 1 is an atomization surface. The direction indicated by the arrows in FIG. 14 is an e-liquid guide direction.
An atomization seat 5 matched with the atomization chamber in size is mounted in the atomization chamber 403, an accommodating cell 501 for accommodating the ultrasonic atomization sheet 1 is disposed in the atomization seat 5, and the ultrasonic atomization sheet 1 is tightly fixed in the atomization seat 5 through the accommodating cell 501.
The atomization seat 5 may be a silica gel sleeve, which can not only play a role in fixing the ultrasonic atomization sheet 1, but also provide a buffering force during the oscillation process of the ultrasonic atomization sheet 1 to protect the ultrasonic atomization sheet 1 and prevent the ultrasonic atomization sheet 1 from being damaged.
The top end of the atomization seat 5 is in contact with the partition plate 401in a sealed way, the bottom end of the atomization seat 5 abuts against the bottom surface of the e-liquid recovery cell 1601, the e-liquid guide layer 33 comprises a connecting portion 3301 in contact with the lower surface of the ultrasonic atomization sheet 1 and a liquid guide portion 3302 connected to the connecting portion 3301, a cell body 502 and through holes 503 for mounting the liquid guide portion 3302 are respectively disposed on the bottom end and side wall of the atomization seat 5, and the liquid guide portion 3302 passes through the cell body 502 and the through holes 503 sequentially and then is communicated with an e-liquid outlet 4011 on the partition plate 401. The through holes 503 are filled with e-liquid storage cotton 6, and the parts of the liquid guide portion 3302 in the through holes 503 are held between the inner walls of the through holes 503 and the side wall of the e-liquid storage cotton 6. The e-liquid storage cotton 6 can effectively prevent e-liquid leakage.
An elastic connector 8 is disposed between the e-liquid recovery cell 1601 and the connecting portion 3301. One end of the elastic connector 8 is fixed on the inner bottom surface of the e-liquid recovery cell 1601, and the other end abuts against the lower surface of the connecting portion 3301 to ensure full contact between the e-liquid guide layer 33 and the ultrasonic atomization sheet 1. The elastic connector 8 is a spring.
The e-liquid recovery cell 1601 is provided with a boss 1602 at a position under the connecting portion 3301, the bottom end of the atomization seat 5 is provided with an air passing groove 504 matching the boss 1602, the boss 1602 is caught in the air passing groove 504 and a gap 34 is reserved between the boss and the air passing groove, the air inlet passage 2 and the air outlet passage 3 are both disposed in the side wall of the e-liquid cup 4, one end of the gap 34 is communicated with the air inlet passage 2, the other end of the gap 34 is communicated with the air outlet passage 3, and the gap 34 is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet 1. The air inlet passage 2, the air outlet passage 3, and the gap 34 form a U-shaped air flow passage. E-liquid droplets entrained in the smoke atomized by the ultrasonic atomization sheet 1 are adhered to the surface of the boss 1602, flow into the e-liquid recovery cell 1601 under the action of air flow, and are absorbed by the liquid guide portion 3302 and then ultrasonically atomized.
Bevels are disposed on the circumference of the boss 1602.
An upper opening of the liquid storage chamber 402 is closed by an e-liquid cup cover 11, the top end of side wall of the liquid storage chamber 402 is connected to a nozzle holder 35 in a sealed way, the end surface of the nozzle holder 35 is provided with at least one air inlet 36 communicated with the air inlet passage 2, and a suction nozzle 37 is fixed to the nozzle holder 35 and communicated with the air outlet passage 3. The e-liquid cup cover 11 is provided with an e-liquid injection hole for conveniently adding e-liquid to the liquid storage chamber 402, and the e-liquid injection hole is blocked by an e-liquid plug 28.
The air inlet passage 2 and the air outlet passage 3 are symmetrically arranged by taking the central axis of the e-liquid cup 4 as a symmetric line, the upper opening of the liquid storage chamber 402 is closed by the e-liquid cup cover 11, the top end of side wall of the liquid storage chamber 402 is connected to the nozzle holder 35 in a sealed way, the suction nozzle 37 is fixed to the nozzle holder 35, the top end of the e-liquid cup cover 11 is provided with a first limiting slot 1101 corresponding to the air inlet passage 2 and a second limiting slot 1102 corresponding to the air outlet passage 3, and the first limiting slot 1101 and the second limiting slot 1102 have the same structure. A nozzle holder chamber 32 communicated with the air inlet passage 2 is formed in the nozzle holder 35, a raised portion 26 matching the second limiting slot 1102 is disposed in the nozzle holder chamber 32,the raised portion 26 is inserted into the limiting slot 25, an air hole for communicating the suction nozzle 37 with the air outlet passage 3 is provided inside the raised portion 26, and the end surface of the nozzle holder 35 is provided with at least one air inlet 36 communicated with the nozzle holder chamber 32.
The embodiments of the present invention are described above with reference to the drawings, but the present invention is not limited to the specific embodiments. The specific embodiments described above are merely illustrative but not restrictive. Many forms may also be made by those of ordinary skill in the art under the enlightenment of the present invention without departing from the purpose of the present invention and the scope of the claims, and these forms fall into the scope of the present invention.

Claims

An ultrasonic electronic cigarette atomizer, comprising an ultrasonic atomization sheet (1), an air inlet passage (2), and an air outlet passage (3), wherein the air inlet passage (2) spans an atomization region of the ultrasonic atomization sheet (1) and then is communicated with the air outlet passage (3), and the air flow direction of the air inlet passage (2) in the atomization region of the ultrasonic atomization sheet (1) is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 1, further comprising an e-liquid cup (4), wherein the ultrasonic atomization sheet (1) is disposed in the e-liquid cup (4), and the inner cavity of the e-liquid cup (4) is connected to an atomization surface of the ultrasonic atomization sheet (1) through an e-liquid guide structure; the atomization surface of the ultrasonic atomization sheet (1) is opposite to an e-liquid recovery structure, and the e-liquid recovery structure is connected to the ultrasonic atomization sheet through the e-liquid guide structure.
The ultrasonic electronic cigarette atomizer according to claim 2, wherein the ultrasonic atomization sheet (1) is perpendicular to the length direction of an electronic cigarette, the top surface of the ultrasonic atomization sheet (1) is the atomization surface, and the air inlet passage (2) is tangent to the top surface of the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 3, wherein an atomization seat (5) is disposed at the bottom of the e-liquid cup (4), and the ultrasonic atomization sheet (1) is fixed in the atomization seat (5); the e-liquid guide structure comprises an e-liquid storage cotton (6) and a U-shaped e-liquid guide cotton sheet (7), the e-liquid storage cotton (6) is fixed in an opening at the top of the atomization seat (5) to form the e-liquid recovery structure, the top surface of the e-liquid storage cotton (6) is communicated with the inner cavity of the e-liquid cup (4), and the bottom surface of the e-liquid storage cotton (6) is opposite to the atomization region of the ultrasonic atomization sheet (1); two opposite sides of the U-shaped e-liquid guide cotton sheet (7) are connected to the e-liquid storage cotton (6), and the outer of a third side of the U-shaped e-liquid guide cotton sheet (7) abuts against the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 4, further comprising an elastic connector (8), wherein the bottom end of the elastic connector (8) abuts against the inner of the third sideof the U-shaped e-liquid guide cotton sheet (7), and the top end of the elastic connector (8) abuts against the inner wall of the atomization seat (5).
The ultrasonic electronic cigarette atomizer according to claim 2, wherein the ultrasonic atomization sheet (1) is perpendicular to the length direction of the electronic cigarette, the bottom surface of the ultrasonic atomization sheet (1) is the atomization surface, and the air inlet passage (2) is tangent to the bottom surface of the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 6, wherein an atomization seat (5) is disposed at the top of the e-liquid cup (4), and the ultrasonic atomization sheet (1) is fixed in the atomization seat (5); the e-liquid guide structure comprises an e-liquid guide cotton tube (9), an e-liquid storage cotton (6), and a U-shaped e-liquid guide cotton sheet (7), wherein an e-liquid guide tube (10) is vertically disposed in the e-liquid cup (4), the side wall of the e-liquid guide tube (10) is provided with a plurality of e-liquid passing holes, and the e-liquid guide cotton tube (9) is sleeved in the e-liquid guide tube (10); the e-liquid storage cotton (6) is fixed in an opening at the bottom of the atomization seat (5) to form the e-liquid recovery structure, the bottom surface of the e-liquid storage cotton (6) is connected to the top end of the e-liquid guide cotton tube (9), and the top surface of the e-liquid storage cotton (6) is opposite to the atomization region of the ultrasonic atomization sheet (1); two opposite sides of the U-shaped e-liquid guide cotton sheet (7) are connected to the e-liquid storage cotton (6), and the outer of the third side of the U-shaped e-liquid guide cotton sheet (7) abuts against the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 7, further comprising an elastic connector (8), wherein the top end of the elastic connector (8) abuts against the inner of the third side of the U-shaped e-liquid guide cotton sheet (7), and the bottom end of the elastic connector (8) abuts against the inner wall of the atomization seat (5).
The ultrasonic electronic cigarette atomizer according to claim 2, wherein the e-liquid cup (4) is partitioned into an upper liquid storage chamber (402) and a lower atomization chamber (403) by a partition plate (401), an opening at the lower end of the atomization chamber (403) is sealed by a base (16), the ultrasonic atomization sheet (1) is disposed in the atomization chamber (403), the lower surface of the ultrasonic atomization sheet (1) is in contact with an e-liquid guide layer (33), an e-liquid recovery cell (1601) for recovering e-liquid droplets is disposed in the base (16), the lower surface of the ultrasonic atomization sheet (1) faces the e-liquid recovery cell (1601), and the e-liquid recovery cell (1601) forms the e-liquid recovery structure; the e-liquid guide layer (33) is sequentially communicated with the e-liquid recovery cell (1601) and the liquid storage chamber (402), and the bottom surface of the ultrasonic atomization sheet (1) is the atomization surface.
The ultrasonic electronic cigarette atomizer according to claim 9, wherein an atomization seat (5) matched with the atomization chamber in size is mounted in the atomization chamber (403), and the ultrasonic atomization sheet (1) is tightly fixed in the atomization seat (5).
The ultrasonic electronic cigarette atomizer according to claim 10, wherein the top end of the atomization seat (5) is in contact with the partition plate (401)in a sealed way, the bottom end of the atomization seat (5) abuts against the bottom surface of the e-liquid recovery cell (1601), the e-liquid guide layer (33) comprises a connecting portion (3301) in contact with the lower surface of the ultrasonic atomization sheet (1) and a liquid guide portion (3302) connected to the connecting portion (3301), a cell body (502) and through holes (503) for mounting the liquid guide portion (3302) are respectively disposed on the bottom end and side wall of the atomization seat (5), and the liquid guide portion (3302) passes through the cell body (502) and the through holes (503) sequentially and then is communicated with an e-liquid outlet (4011) on the partition plate (401).
The ultrasonic electronic cigarette atomizer according to claim 11, wherein an elastic connector (8) is disposed between the e-liquid recovery cell (1601) and the connecting portion (3301), one end of the elastic connector (8) is fixed on the inner bottom surface of the e-liquid recovery cell (1601), and the other end abuts against the lower surface of the connecting portion (3301).
The ultrasonic electronic cigarette atomizer according to claim 11, wherein the e-liquid recovery cell (1601) is provided with a boss (1602) at a position under the connecting portion (3301), the bottom end of the atomization seat (5) is provided with an air passing groove (504) matching the boss (1602), the boss (1602) is caught in the air passing groove (504) and a gap (34) is reserved between the boss and the air passing groove, the air inlet passage (2) and the air outlet passage (3) are both disposed in the side wall of the e-liquid cup (4), one end of the gap (34) is communicated with the air inlet passage (2), the other end of the gap (34) is communicated with the air outlet passage (3), and the gap (34) is perpendicular to the smoke spraying direction of the ultrasonic atomization sheet (1).
The ultrasonic electronic cigarette atomizer according to claim 13, wherein bevels are disposed on the circumference of the boss (1602).
The ultrasonic electronic cigarette atomizer according to claim 13 or 14, wherein an upper opening of the liquid storage chamber (402) is closed by an e-liquid cup cover (11), the top end of side wall of the liquid storage chamber (402) is connected to a nozzle holder (35) in a sealed way, the end surface of the nozzle holder (35) is provided with at least one air inlet (36) communicated with the air inlet passage (2), and a suction nozzle (37) is fixed to the nozzle holder (35) and communicated with the air outlet passage (3).
The ultrasonic electronic cigarette atomizer according to claim 13 or 14, wherein the air inlet passage (2) and the air outlet passage (3) are symmetrically arranged by taking the central axis of the e-liquid cup (4) as a symmetric line, the upper opening of the liquid storage chamber (402) is closed by the e-liquid cup cover (11), the top end of side wall of the liquid storage chamber (402) is connected to the nozzle holder (35) in a sealed way, the suction nozzle (37) is fixed to the nozzle holder (35), the top end of the e-liquid cup cover (11) is provided with a first limiting slot (1101) corresponding to the air inlet passage (2) and a second limiting slot (1102) corresponding to the air outlet passage (3), and the first limiting slot (1101) and the second limiting slot (1102) have the same structure; a nozzle holder chamber (32) communicated with the air inlet passage (2) is formed in the nozzle holder (35), a raised portion (26) matching the second limiting slot (1102) is disposed in the nozzle holder chamber (32), the raised portion (26) is inserted into the limiting slot (25), an air hole for communicating the suction nozzle (37) with the air outlet passage (3) is provided inside the raised portion (26), and the end surface of the nozzle holder (35) is provided with at least one air inlet (36) communicated with the nozzle holder chamber (32).