EP3981269B1

EP3981269B1 - Atomizing core and atomizer of electronic cigarette

Info

Publication number: EP3981269B1
Application number: EP20827945.5A
Authority: EP
Inventors: Jianfu Liu; Kejun ZHONG; Xiaoyi Guo; Wei Huang; Xinqiang YIN; Jianhua Yi; Chaoxiang HUANG; Yongquan ZHOU
Original assignee: China Tobacco Hunan Industrial Co Ltd
Current assignee: China Tobacco Hunan Industrial Co Ltd
Priority date: 2019-06-17
Filing date: 2020-06-15
Publication date: 2024-07-31
Anticipated expiration: 2040-06-15
Also published as: WO2020253639A1; EP3981269A4; EP3981269A1

Description

FIELD OF THE INVENTION

The present invention relates to an electronic cigarette utensil, and in particular, to an electronic cigarette atomizing core and an electronic cigarette atomizer.

BACKGROUND OF THE INVENTION

In an existing ultrasonic electronic cigarette, an ultrasonic atomizing sheet of an atomizer is prone to being soaked in e-liquid or dry burning after continuous inhalations of vapor, resulting in decreased amount of vapor and poor taste of the vapor. Moreover, after continuous dry burning for multiple times, the service life of the ultrasonic atomizing sheet may be shortened, thereby leading to an increase in use cost and poor user experience.
In addition, an ultrasonic atomizing sheet of an ultrasonic atomizer includes a piezoelectric ceramic substrate, and an upper surface electrode and a lower surface electrode that are disposed on the upper and lower surfaces of the piezoelectric ceramic substrate, respectively. When two poles of a power source are connected to the upper surface electrode and the lower surface electrode, respectively, the piezoelectric ceramic substrate is under high frequency oscillation, so that the e-liquid is atomized into vapor on the surface of the piezoelectric ceramic substrate. However, when the e-liquid is atomized by the ultrasonic atomizing sheet, the ultrasonic atomizing sheet is equivalent to a capacitor in the atomizing circuit. After the circuit is opened, the energy carried by the ultrasonic atomizing sheet cannot be released. After the circuit is closed again, the ultrasonic atomizing sheet instantaneously releases high energy to components on the mainboard. Consequently, the components are easy to be burnt out. For example, a metal-oxide-semiconductor Field-Effect transistor(MOS) is broken down by a high voltage, thereby affecting the normal working of the circuit. As a result, the use cost is increased and the user experience is poor.
Since the sides of the ultrasonic atomizing sheet in the ultrasonic atomizer are not stuck and fixed, the ultrasonic atomizing sheet is prone to shaking or moving, resulting in poor electrical connection. Furthermore, in assembly and in use, the ultrasonic atomizing sheet is prone to deviating and titling, resulting in uneven distribution of the e-liquid on the surface of the ultrasonic atomizing sheet, thus the ultrasonic atomizing sheet is prone to dry burning.
An electronic cigarette atomizing core according to the preamble of claim 1 is disclosed in EP 3 469 933 A .

SUMMARY OF THE INVENTION

The technical problem to be solved in the present invention is to, with the purpose of overcoming the shortcomings of the prior art, provide an electronic cigarette atomizing core and an electronic cigarette atomizer that enable a smooth flow of an e-liquid and a uniform flow rate of the e-liquid.
To solve the above technical problem, the present invention provides an electronic cigarette atomizing core, including an atomizing cotton, an installation seat of the atomizing cotton, and an ultrasonic atomizing sheet. An atomizing cavity is formed in the middle of the installation seat. The ultrasonic atomizing sheet includes an upper surface electrode connected to an outer electrode and a lower surface electrode connected to an inner electrode. A first groove and a second groove that are integrally communicated with each other are formed in an upper surface of the installation seat. An air outlet is formed at the top of the first groove and disposed correspondingly to an e-liquid outlet onan e-liquid tank device. A first air inlet is formed at both an endof the first groove close to the atomizing cavity and anend of the second groove close to the atomizing cavity. The first groove is communicated with the second groove by means of the first air inlet of the first groove. The first air inlet of the second groove is communicated with the atomizing cavity. The first air inlet of the first groove is smaller than that of the second groove.
Since the first groove is communicated with the second groove by means of the first air inlet of the first groove, and the first air inlet of the first groove is smaller than that of the second groove, so that the first and second grooves together form a horn-shaped opening on one side of the atomizing cavity. When e-liquid is gathered in the first groove, the e-liquid can flow out of the second groove via the horn-shaped opening. Thus, the first groove can be prevented from blockage by the e-liquid, so that air exchange at the e-liquid outlet is not affected. Moreover, the air in the atomizing cavity can enter the first groove via the second groove, pass through the atomizing cotton via the air outlet at the top of the first groove, and then enter the e-liquid tank device via the e-liquid outleton the e-liquid tank device, causing the pressure in the e-liquid tank to rise and enabling a smooth flow of the e-liquid out of the e-liquid tank. Thus, smooth e-liquid flow through the atomizing cotton, uniform e-liquid flow rate, and better e-liquid atomizing effect of the ultrasonic atomizing sheet can be achieved, and dry burning of the ultrasonic atomizing sheet can be prevented. Besides, the first air inlet of the first groove is smaller than that of the second groove, thus avoiding excessive air from entering the first groove and the e-liquid tank, thereby the ultrasonic atomizing sheet can be prevented from being soaked in excessive e-liquid output from the e-liquid tank when the electronic cigaretteis not being smoked, thus the e-liquid atomizing efficiency of the ultrasonic atomizing sheet will not be reduced, and the risk of inhalation of the e-liquid by a user will not be increased.
Further, a first fixing slot is formed in the installation seat on the outer side of the first groove. An end of the atomizing cotton covers the first groove and the second groove and extends into the first fixing slot. The middle of the atomizing cotton is in contact with an atomizing region of the ultrasonic atomizing sheet, and the portions, corresponding to the first groove and the second groove, of the atomizing cotton are suspended. Thus, a smooth flow of the e-liquid is enabled with low resistancewhen the e-liquid is guided.
Further, a resistance plate is clamped between the outer electrode and the inner electrode; a resistor is disposed on the resistance plate. One end of the resistor is electrically connected to the upper surface electrode of the ultrasonic atomizing sheet by means of the outer electrode, while the other end of the resistor is electrically connected to the lower surface electrode of the ultrasonic atomizing sheet by means of the inner electrode. Thus, with the resistance plate clamped between the outer electrode and the inner electrode, a closed circuit is formed by the ultrasonic atomizing sheet and the resistor on the resistance plate after the atomizer is powered off, so that the energy stored by the ultrasonic atomizing sheet which is powered on and then powered off is consumed, allowing the ultrasonic atomizing sheet to work normally after being powered on again,and damage of other electronic components by instantaneous high voltage released by the ultrasonic atomizing sheet after being powered on again can be avoided, and the use cost can be reduced. Since the resistance plate is clamped between the outer electrode and the inner electrode, the resistance plate is simple, convenient and fast to assemble, and can be mounted stably. Thus, the manufacturing cost of the atomizer can be reduced correspondingly.
Further, the inner electrode includes an electrode holder. A clamping column is disposed on the electrode holder. A boss is formed on the top of the clamping column. A first opening allowing insertion of the resistance plate in the electrode holder is formed in the resistance plate. A second opening allowing engagement of the resistance plate with the clamping column and the boss is formed in the first opening. The resistance plate is placed on the electrode holder by means of the first opening, and fastened to the clamping column and the boss of the electrode holder by means of the second opening. Thus, during assembling, the resistance plate is inserted into the electrode holder by means of the first opening thereof, then the resistance plate is pushed to allow clamping of the second opening with the clamping column of the electrode holder, and propped against the boss. Thus, the resistance plate can be clamped stably without a screw, and a closed circuit can be formed by the electrode holder and the resistance plate. As a result, the assembling can be simplified and the manufacturing cost can be reduced.
Further, the opening of the second opening is matched with the shape of the clamping column, so that the resistance plate and the electrode holder are assembled more stably. Further, a connecting electrode is place in the lower portion of the outer electrode. A third groove is formed in the middle of the connecting electrode. A protruding support platform is formed on the third groove. The lower surface of the resistance plate is placed on the support platform, and the upper surface of the resistance plate is propped against the boss of the electrode holder. Thus, after the resistance plate is placed on the electrode holder, the third groove is not in contact with the resistance plate when the second opening of the resistance plate is moved to be engaged with the clamping column and the boss of the electrode holder, so that the friction during the movement of the resistance plate is reduced with saved effort, and assembling is convenient.
Further, the ultrasonic atomizing sheet is mounted on the atomization seat, and a second fixing slot and a limiting ring for fixing the ultrasonic atomizing sheet are disposed on the atomization seat. Thus, the ultrasonic atomizing sheet can be effectively prevented from falling out or moving, thereby avoiding tilting of the ultrasonic atomizing sheet caused by unstable mounting of the ultrasonic atomizing sheet and avoiding dry burning due to insufficient contact between the ultrasonic atomizing sheet and the e-liquid and improving the stability of the assembled ultrasonic atomizing sheet.
Further, the atomization seat is sleeved with the outer electrode. An upper end of the outer electrode stretches across a top surface of the atomization seat and has a resisting portion bent downwardly. A conductive ring protruding outwards is disposed on the resisting portion. The outer electrode is propped against the upper surface electrode of the ultrasonic atomizing sheet by means of the conductive ring to realize electrical connection therebetween. Thus, the outer electrode can be electrically connected to the ultrasonic atomizing sheet without welded electronic lines, enabling convenient assembling and stable electrical connection of the atomizing core.
Further, an inserting end is formed at the bottom of the atomization seat, and the atomization seat is inserted in the top of the connecting electrode by means of the inserting end thereof and thereby fixed on the connecting electrode. Thus, the atomization seat can be stably connected to the connecting electrode, and the atomizing core can be assembled conveniently and rapidly with low cost.
Further, first fixing slotsare symmetrically formed in the upper surface of the installation seat of the atomizing cotton. Two ends of the atomizing cotton are inserted in the first fixing slot and cover the first groove and the second groove. Thus, the atomizing cotton can be mounted on the installation seat more stably.
Further, the first fixing slot, the first groove and the second groove are formed in the upper surface of the installation seat in sequence from outside to inside.
Based on the same inventive concept, the present invention further provides an electronic cigarette atomizer, including the electronic cigarette atomizing core. A lower surface of the e-liquid tank device is abutted against the upper surface of the installation seat, so that two ends of the atomizing cotton are clamped by the e-liquid tank device and the installation seat. The atomizing cavity is located between the lower surface of the e-liquid tank device and an upper surface of the ultrasonic atomizing sheet and is accessible by outside air, and the air outlet of the first groove is larger than the e-liquid outlet.
Thus, the air in the atomizing cavity can enter the first groove via the second groove, pass through the atomizing cotton, and then enter the e-liquid tank via the e-liquid outlet, enabling smooth exchange of the e-liquid and the air in the e-liquid tank. Thus, the flow rate of the e-liquid out of the e-liquid tank can be ensured, thereby achieving better e-liquid atomizing effect of the ultrasonic atomizing sheet and avoiding dry burning of the ultrasonic atomizing sheet. Moreover, the air outlet of the first groove is larger than the e-liquid outlet, thereby preventing blockage of the first groove by the e-liquid and avoiding influence on air exchange at the e-liquid outlet.
In addition, according to the present invention, after the two ends of the atomizing cotton cover the first groove and the second groove, two sides of both ends of the atomizing cotton are abutted against the end face of the e-liquid outlet on the outer e-liquid tank shell by the top end face of the installation seat of the atomizing cotton. Since the two sides of the atomizing cotton are tightly pressed with no gap for the e-liquid to flow, only the portions, corresponding to the first groove and the second groove, of the atomizing cotton can allow the flow of the e-liquid, thereby controlling the flow rate of the e-liquid. Thus, the ultrasonic atomizing sheet can be prevented from being soaked in the e-liquid, and the atomizing cotton can be prevented from falling into the first groove or the second groove, so the exchange speed of the e-liquid and the air in the e-liquid tank will not be slowed, thus e-liquid flow will not be slowed, and hence dry burning of the ultrasonic atomizing sheet will not occur.
Further, the e-liquid tank device is formed by an inner e-liquid tank shell and an outer e-liquid tank shell that are engaged with each other. The e-liquid outlet is disposed on the outer e-liquid tank shell.
Further, a knob is disposed in the middle of the e-liquid tank device. A top end of the knob is sleeved with a suction nozzle device. The suction nozzle device is capable of rotating around the knob, thereby closing or opening the e-liquid inlet of the e-liquid tank device. The suction nozzle device is provided with a suction nozzle and a second air inlet. An air outlet passage communicated with the suction nozzle and the atomizing cavity is formed in the middle of the knob, and an air inlet passage communicated with the second air inlet and the atomizing cavity is formed in the periphery of the knob. Thus, a complete air flow pathway is provided for the atomizer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of an atomizer according to the present invention.
FIG. 2 is an A-A cross-sectional view of FIG. 1.
FIG. 3 is a three-dimensional cross-sectional view of an atomizer according to the present invention.
FIG. 4 is a front cross-sectional view of an atomizing core according to the present invention.
FIG. 5 is an exploded view of an atomizing core according to the present invention.
FIG. 6 is a three-dimensional view of an installation seat of the atomizing cotton according to the present invention.
FIG. 7 is an exploded view of a resistance plate, a connecting electrode and an inner electrode according to the present invention.
FIG. 8 is an assembly view of a resistance plate with a connecting electrode and an inner electrode according to the present invention.
FIG. 9 is an assembly diagram of an atomizing core according to the present invention.

List of Reference Numerals: 1-suction nozzle device, 11-suction nozzle, 12-second air inlet;

2-pressing cover;
3-e-liquid tank device, 31-inner e-liquid tank shell, 32-outer e-liquid tank shell, 321-e-liquid outlet;
4-atomizing core, 41-atomizing cotton, 42-installation seat, 43-ultrasonic atomizing sheet, 44-atomization seat, 45-outer electrode, 46-resistance plate, 47-connecting electrode, 48-insulating ring, 49-inner electrode, 421-first fixing slot, 422-first groove, 423-second groove, 441-second fixing slot, 442-limiting ring, 443-inserting end, 451-resisting portion, 452-conductive ring, 461-first opening, 462-second opening, 471-third groove, 472-support platform, 491-electrode holder, 492-elastic electrode, 4911-boss, 4912-clamping column;
5-bottom cover;
6-knob, 61-air outlet passage, 62-air inlet passage, and
7-spring.

DETAILED DESCRIPTION OF EMBODIMENTS

The present invention will be further described in conjunction with specific preferred embodiments, but the protection scope of the present invention is not thereby limited thereto.
For ease of description, relative positional relationships (e.g., upper, lower, left, and right) of different components are all described based on what are illustrated in the drawings, which are not limiting of the structure of the present invention.
Embodiment 1:
As shown in FIG. 1 to FIG. 9, an embodiment of an electronic cigarette atomizer according to the present invention includes a suction nozzle device 1, an e-liquid tank device 3 and an atomizing core 4. The suction nozzle device 1 is provided with a suction nozzle 11 and a second air inlet 12. An e-liquid tank of the e-liquid tank device 3 is formed by an inner e-liquid tank shell 31 and an outer e-liquid tank shell 32 that are engaged with each other, and an e-liquid outlet 321 is disposed at the bottom of the e-liquid tank. The top of the e-liquid tank device 3 is covered with a pressing cover 2, and the bottom of the e-liquid tank device 3 is covered with a bottom cover 5. The atomizing core 4 is inserted into the outer e-liquid tank shell 32 through the bottom cover 5, and the middle of the lower surface of the outer e-liquid tank shell 32 is allowed to abut against the upper surface of the atomizing core 4.
The atomizing core 4 includes an atomizing cotton 41, an installation seat 42 for installing the atomizing cotton, an ultrasonic atomizing sheet 43, an atomization seat 44, an outer electrode 45, a resistance plate 46, a connecting electrode 47, an insulating ring 48, and an inner electrode 49.
A first fixing slot 421, a first groove 422 and a second groove 423 are symmetrically formed in the upper surface of the installation seat 42 from outside to inside. The first groove 422 and the second groove 423 are communicated with each other, and the first groove 422 directly faces the e-liquid outlet 321 onthe e-liquid tank device 3. The air outlet of the first groove 422 is larger than the e-liquid outlet 321, preferably twice the e-liquid outlet 321 in diameter, thereby preventing blockage of the first groove 422 by the e-liquid, and thus air exchange at the e-liquid outlet 321 is not affected. The first air inlet of the first groove 422 is smaller than that of the second groove 423, ensuring that the first groove 422 is not prone to being blocked by the e-liquid. The installation seat 42 is preferably a silica gel cover.
A second fixing slot 441 and a limiting ring 442 are disposed at an upper part of the inner cavity of the atomization seat 44. An inserting end 443 is disposed at a lower part of the atomization seat 44. The atomization seat 44 is inserted in the inner cavity of the connecting electrode 47 by means of the inserting end 443 thereof, so that the atomization seat 44 is stably placed at the top of the connecting electrode 47. The ultrasonic atomizing sheet 43 is nested in the second fixing slot 441 of the atomization seat 44 and is propped against by the limiting ring 442 to be limited. Thus, the ultrasonic atomizing sheet 43 can be effectively prevented from falling out of or moving in the atomization seat 44, thereby effectively avoiding tilting of the ultrasonic atomizing sheet caused by unstable mounting of the ultrasonic atomizing sheet and avoiding dry burning of the ultrasonic atomizing sheet due to insufficient contact between the ultrasonic atomizing sheet and the e-liquid, and thus improving the stability of the assembled ultrasonic atomizing sheet.
After the two ends of the atomizing cotton 41 cover the first groove 422 and the second groove 423, the tail end of the atomizing cotton is inserted into the first fixing slot 421. The middle of the atomizing cotton 41 is sunken under the action of a spring 7 and thereby comes into contact with the ultrasonic atomizing sheet 43 horizontally placed in the atomization seat 44 to form an atomizing region, and the portions, corresponding to the first groove 422 and the second groove 423, of the atomizing cotton 41 are suspended. An atomizing cavity is formed between the upper surface of the ultrasonic atomizing sheet 43 and the lower surface of the outer e-liquid tank shell 32. The first air inlet of the second groove 423 is communicated with the atomizing cavity, and the first groove 422 directly faces the e-liquid outlet 321 onthe e-liquid tank device 3. Thus, the air in the atomizing cavity can enter the e-liquid tank via the second groove 423, the first groove 422 and the e-liquid outlet 321 to exchange with the e-liquid, thereby ensuring the flow rate of the e-liquid. After the two ends of the atomizing cotton 41 cover the first groove 422 and the second groove 423, two sides of the atomizing cotton 41 are abutted against the end face of the e-liquid outlet on the outer e-liquid tank shell 32 by the top end face of the installation seat 42. Since the two sides of the atomizing cotton 41 are tightly pressed with no gap for the e-liquid to flow, only the portions, corresponding to the first groove 422 and the second groove 423, of the atomizing cotton 41 can allow the flow of the e-liquid, thereby controlling the flow rate of the e-liquid. Thus, the ultrasonic atomizing sheet 43 can be prevented from being soaked in the e-liquid, and the atomizing cotton 41 can be prevented from falling into the first groove 422 or the second groove 423, thereby avoiding slowed e-liquid flow due to slowed exchange of the e-liquid and the air in the e-liquid tank and hence avoiding dry burning of the ultrasonic atomizing sheet 43.
The bottom of the installation seat 42 is connected to the outer electrode 45. The upper portion of the outer electrode 45 sleeves the atomization seat 44, so that the atomization seat 44 is protected by the outer electrode 45 and prevented from deformation, thereby avoiding influence on the form of the ultrasonic atomizing sheet 43 in the atomization seat 44. An upper end of the outer electrode 45 stretches across a top surface of the atomization seat 44 and has a resisting portion 451 bent downwardly. A conductive ring 452 protruding outwards is disposed on the resisting portion 451. The outer electrode 45 is propped against an upper surface electrode of the ultrasonic atomizing sheet 43 by means of the conductive ring 452 to realize electrical connection therebetween. The lower portion of the outer electrode 45 is connected to the connecting electrode 47. A third groove 471 is formed in the middle of the connecting electrode 47. A protruding support platform 472 is formed on the inner side of the third groove 471. A lower surface electrode of the ultrasonic atomizing sheet 43 is connected to the inner electrode 49. The inner electrode 49 includes an electrode holder 491. An elastic electrode 492 for abutting against the lower surface electrode of the ultrasonic atomizing sheet 43 is disposed in the middle of the electrode holder 491. The inner electrode 49 is mounted in the inner cavity of the connecting electrode 47, and an insulating ring 48 is disposed between the connecting electrode 47 and the inner electrode 49. A clamping column 4912 and a boss 4911 are disposed on the electrode holder 491. A first opening 461 and a second opening 462 are formed in the resistance plate 46, and the first opening 461 is connected to the second opening 462. The resistance plate 46 is sleeved on the clamping column 4912 of the electrode holder 491 by means of the first opening 461, fastened to the boss 4911 by means of the second opening 462, and propped against the support platform 472 of the connecting electrode 47, thereby achieving electrical connection of a resistor on the resistance plate 46 with the connecting electrode 47 and the inner electrode 49. Two ends of the resistor are connected to the upper and lower surface electrodes of the ultrasonic atomizing sheet 43, respectively, so that a closed circuit is formed between the ultrasonic atomizing sheet 43 and the resistor. Thus, the energy stored by the ultrasonic atomizing sheet 43 can be consumed by the resistor, allowing the ultrasonic atomizing sheet 43 to work normally after being powered on. Components on the mainboard of the atomizer can be protected against damage under huge voltage impact. The service life of the atomizer can be prolonged and the use cost thereof can be reduced.
A knob 6 is disposed in the middle of the e-liquid tank device 3. A top end of the knob 6 is sleeved with a suction nozzle device 1. The suction nozzle device 1 is capable of rotating around the knob 6, thereby closing or opening an e-liquid inlet of the e-liquid tank device 3. An air outlet passage 61 communicated with the suction nozzle 11 and the atomizing cavity is formed in the middle of the knob 6, and an air inlet passage 62 communicated with the second air inlet 12 and the atomizing cavity is formed in the periphery of the knob 6.
In use, a smoker inhales vapor through the suction nozzle 11. The outside air from the second air inlet 12enters the atomizing cavity through the air inlet passage 62, and the e-liquid flows from the e-liquid outlet 321 onthe e-liquid tank to the atomizing cotton 41, then spreads to the middle, in contact with the ultrasonic atomizing sheet 43, of the atomizing cotton via the portions, corresponding to the first and second grooves, of the atomizing cotton 41, and after being ultrasonically atomized, reaches the suction nozzle 11 through the air outlet passage 61 to be inhaled by the smoker.
The foregoing is merely descriptions of preferred embodiments of the present application, and are not intended to limit the present application in any form. While the present application is disclosed by the foregoing preferred embodiments, the embodiments are not intended to limit the present application. Any person skilled in the art can make some changes or modifications based on the technical contents disclosed above wherein the scope of the invention is defined in the appended claims.

Claims

An electronic cigarette atomizing core, comprising an atomizing cotton (41), an installation seat (42) of the atomizing cotton (41), and an ultrasonic atomizing sheet (43), wherein an atomizing cavity is formed in the middle of the installation seat; the ultrasonic atomizing sheet comprises an upper surface electrode connected to an outer electrode (45) and a lower surface electrode connected to an inner electrode (49), and characterized in that a first groove (422) and a second groove (423) that are integrally communicated with each other are formed in an upper surface of the installation seat; an air outlet is formed at the top of the first groove and disposed correspondingly to an e-liquid outlet (321) of an e-liquid tank device (3); a first air inlet is formed at both an end of the first groove close to the atomizing cavity and an end of the second groove close to the atomizing cavity; the first groove is communicated with the second groove by means of the first air inlet thereof; the first air inlet of the second groove is communicated with the atomizing cavity; characterized in that the first air inlet of the first groove is smaller than the first air inlet of the second groove.
The electronic cigarette atomizing core according to claim 1, wherein a first fixing slot is formed in the installation seat on an outer side of the first groove; an end of the atomizing cotton covers the first groove and the second groove and extends into the first fixing slot; and the middle of the atomizing cotton is in contact with an atomizing region of the ultrasonic atomizing sheet.
The electronic cigarette atomizing core according to claim 1, wherein a resistance plate (46) is clamped between the outer electrode and the inner electrode; a resistor is disposed on the resistance plate; and one end of the resistor is electrically connected to the upper surface electrode of the ultrasonic atomizing sheet by means of the outer electrode, while the other end of the resistor is electrically connected to the lower surface electrode of the ultrasonic atomizing sheet by means of the inner electrode.
The electronic cigarette atomizing core according to claim 3, wherein the inner electrode comprises an electrode holder (491); a clamping column (4912) is disposed on the electrode holder; a boss (4911) is formed on the top of the clamping column; a first opening (461) allowing insertion of the resistance plate in the electrode holder is formed in the resistance plate; and a second opening (462) allowing engagement of the resistance plate with the clamping column and the boss is formed in the first opening.
The electronic cigarette atomizing core according to claim 4, wherein the shape of the second opening is matched with the shape of the clamping column.
The electronic cigarette atomizing core according to claim 4, wherein a lower portion of the outer electrode is sleeved on a connecting electrode (47); a third groove (471) is formed in the middle of the connecting electrode; a protruding support platform (472) is formed on an inner side of the third groove; and the resistance plate is placed on the support platform and propped against the boss of the electrode holder.
The electronic cigarette atomizing core according to claim 1, wherein the ultrasonic atomizing sheet is mounted on an atomization seat (44); and a second fixing slot (441) and a limiting ring (442) for fixing the ultrasonic atomizing sheet are disposed on the atomization seat.
The electronic cigarette atomizing core according to claim 7, wherein the atomization seat is sleeved with the outer electrode; an upper end of the outer electrode stretches across a top surface of the atomization seat and has a resisting portion (451) bent downwardly; a conductive ring (452) protruding outwards is disposed on the resisting portion; and the outer electrode is propped against the upper surface electrode of the ultrasonic atomizing sheet by means of the conductive ring to realize electrical connection therebetween.
The electronic cigarette atomizing core according to claim 7, wherein an inserting end (443) is formed at the bottom of the atomization seat, and the atomization seat is inserted in the top of the connecting electrode (47) by means of the inserting end thereof and fixedly mounted on the connecting electrode.
An electronic cigarette atomizer, characterized in that the electronic cigarette atomizer comprises the electronic cigarette atomizing core according to any one of claims 1 to 9, wherein a lower surface of the e-liquid tank device is abutted against the upper surface of the installation seat, so that two ends of the atomizing cotton are clamped by the e-liquid tank device and the installation seat; the atomizing cavity is located between the lower surface of the e-liquid tank device and an upper surface of the ultrasonic atomizing sheet, and the atomizing cavity is accessible by outside air; and the air outlet of the first groove is larger than the e-liquid outlet.
The electronic cigarette atomizer according to claim 10, wherein the e-liquid tank device is formed by an inner e-liquid tank shell (31) and an outer e-liquid tank shell (32) that are engaged with each other; and the e-liquid outlet is disposed on the outer e-liquid tank shell.
The electronic cigarette atomizer according to claim 10, wherein a knob (6) is disposed in the middle of the e-liquid tank device; a top end of the knob is sleeved with a suction nozzle device (1) that has a suction nozzle (11) and a second air inlet (12); an air outlet passage (61) communicated with the suction nozzle and the atomizing cavity is formed in the middle of the knob; and an air inlet passage (62) communicated with the second air inlet and the atomizing cavity is formed in the periphery of the knob.