WO2017066955A1 - Electronic cigarette and atomization assembly and atomization element thereof - Google Patents

Abstract

Provided are an atomization element (240) of an electronic cigarette and an atomization assembly (10) using the atomization element (240) and an electronic cigarette (1). The atomization element (240) comprises a porous ceramic body (242) and a porous heating film (244), the porous ceramic body (242) comprises a liquid-absorption face (242a) and an atomization face (242b), and the porous heating film (244) is formed on the atomization surface (242b). The atomization assembly (10) comprises a shell (100) and an atomization core (200), and the atomization core (200) comprises a core body (220). An atomization cavity (222) is provided inside the core body (220), and the atomization element (240) is arranged inside the atomization cavity (222). The atomization assembly (10) and a power supply assembly (20) are electrically connected to form the electronic cigarette (1).

Description

Electronic cigarette and its atomizing component and atomizing component

[Technical Field]

The invention relates to the technical field of smoking articles, in particular to an electronic cigarette, an atomizing component thereof and an atomizing component.

【Background technique】

Electronic cigarettes are also known as virtual cigarettes and electronic atomizers. E-cigarettes have a similar appearance and taste to cigarettes, but generally do not contain harmful components such as tar and aerosols in cigarettes.

Electronic cigarettes mainly include an atomizing component and a power component. The atomizing component acts as the core device for the atomization gas generated by the electronic cigarette, and the atomization effect determines the quality and taste of the smoke. The heating body of a general atomizing assembly is a spiral heating wire, and the heating wire is wound around a wick. When the heating wire is energized, the liquid smoke stored on the wick is atomized by the heating action of the heating wire to generate smoke.

However, in the use of the above-mentioned electronic cigarette, since the heating wire is linear, only the liquid smoke located near the heating wire can be heated to be atomized, and the liquid smoke far away from the heating wire, the spiral heating wire gap The liquid smoke is not easily atomized. In addition, as the distance from the heating wire increases, the temperature will drop drastically. Therefore, the atomization temperature of the liquid smoke is uneven, resulting in different atomized particle sizes of the liquid smoke. The effect is poor.

[Summary of the Invention]

Based on this, it is necessary to provide an electronic cigarette with a better atomization effect, an atomizing component thereof and an atomizing component in order to solve the above problems.

An atomizing component of an electronic cigarette, comprising:

a porous ceramic body comprising a liquid absorbing surface and an atomizing surface;

A porous heat generating film is formed on the atomizing surface.

An atomizing component of an electronic cigarette includes:

a housing having an air flow passage and a liquid storage chamber for storing the smoke liquid;

The atomizing core includes:

a core body disposed in combination with the housing; an atomization chamber is defined in the core body, and an air inlet and an air outlet connected to the atomization chamber are further disposed on the core body;

An atomizing element disposed in the atomization chamber, the atomizing element is configured to atomize the liquid smoke; the atomizing element comprises a porous ceramic body and a porous heat generating film, the porous ceramic body including a liquid absorption surface An atomizing surface, the porous heat generating film is formed on the atomizing surface;

Wherein, the core body is further provided with a liquid suction hole communicating with the atomization chamber and the liquid storage chamber, and a liquid absorption surface of the porous ceramic body of the atomization element passes through the liquid absorption hole and the reservoir The liquid in the liquid chamber is in contact.

An electronic cigarette includes a power supply assembly and an atomization assembly of the electronic cigarette; the power supply assembly is electrically connected to the atomization assembly.

The above-mentioned electronic cigarette, its atomizing component and the atomizing component, the porous ceramic body can block the smoke liquid, and can ensure the liquid guiding effect. The porous heating film is used for atomizing the liquid smoke in the porous ceramic body, and the micropores on the porous heating film can greatly increase the contact area with the smoke liquid and improve the atomization efficiency. The porous heating film is located on the atomizing surface of the porous ceramic body, and facilitates the atomized smoke liquid to escape from the porous ceramic body. The porous heat-generating film is in the form of a sheet, and the surface of the porous ceramic body can be uniformly heated. Therefore, the temperature of the atomization is uniform, and the problem that the atomized particles are large due to the low local temperature does not occur, and the atomized particles are ensured. Evenly, the taste of the electronic cigarette is improved.

[Description of the Drawings]

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain drawings of other embodiments according to the drawings without any creative work.

1 is a perspective view of an electronic cigarette in an embodiment;

2 is an exploded view of the atomizing assembly of the electronic cigarette shown in FIG. 1;

Figure 3 is a cross-sectional view of the atomizing assembly of the electronic cigarette of Figure 1;

Figure 4 is a cross-sectional view of the atomizing core of the electronic cigarette shown in Figure 1;

Figure 5 is an exploded view of the atomizing core of the electronic cigarette shown in Figure 1;

Figure 6 is an exploded view of the atomizing element of the electronic cigarette of Figure 1.

 【detailed description】

In order to facilitate the understanding of the present invention, the electronic cigarette, its atomizing assembly and the atomizing element will be more fully described below with reference to the related drawings. A preferred embodiment of the electronic cigarette and its atomizing assembly and atomizing element is given in the drawings. However, the electronic cigarette and its atomizing and atomizing elements can be implemented in many different forms and are not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the electronic cigarette and its atomizing assembly and atomizing element more thorough and comprehensive.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used herein in the specification of the electronic cigarette and its atomizing component and atomizing element is for the purpose of describing the specific embodiments only, and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

As shown in FIGS. 1 to 3, an electronic cigarette 1 of an embodiment includes an atomizing assembly 10 and a power supply assembly 20, and the power supply assembly 20 is coupled to the atomizing assembly 10. In one embodiment, the connection is detachable. The atomizing assembly 10 includes a housing 100 and an atomizing core 200 disposed in conjunction with the housing 100. The housing 100 is internally provided with an air flow passage 120 and a liquid storage chamber 140 for storing the liquid smoke surrounding the air flow passage 120.

4 and FIG. 5, the atomizing core 200 includes a core body 220 and an atomizing element 240. The core body 220 is internally provided with an atomizing chamber 222, and the core body 220 is further provided with an air inlet communicating with the atomizing chamber 222. 224 and the air outlet 226, the atomizing element 240 is disposed in the atomizing chamber 222, and the atomizing element 240 is used to atomize the liquid smoke. Referring also to FIG. 6, the atomizing element 240 includes a porous ceramic body 242 and a porous heat generating film 244 having a porosity of 30% to 60%. The porosity refers to the total volume of the minute voids in the porous medium and the porous The ratio of the total volume of the media. The porous ceramic body 242 has a liquid absorbing surface 242a for absorbing the liquid smoke, and an atomizing surface 242b for forming the porous heat generating film 244. The liquid absorbing surface 242a and the atomizing surface 242b are generally opposite sides. The porous heat generating film 244 is located on the atomizing surface 242b of the porous ceramic body 242.

The core body 220 is further provided with a liquid suction hole 228 communicating with the atomization chamber 222 and the liquid storage chamber 140. The liquid absorption surface 242a of the porous ceramic body 242 of the atomization element 240 passes through the liquid absorption hole 228 and the smoke in the liquid storage chamber 140. Liquid contact. It is to be understood that the manner in which the liquid-absorbent surface 242a of the porous ceramic body 242 is disposed is not limited to the present embodiment, and the porous ceramic body 242 may be provided with a plurality of liquid-absorbent surfaces 242a, for example, the side faces of the porous ceramic body 242, etc., depending on the actual situation. In addition, the arrangement of the atomization surface 242b of the ceramic body 242 is not limited to the embodiment. For example, the atomization surface 242b may be disposed on the inner wall of the air vent 2422 of the porous ceramic body 242 as long as the atomization surface 242b. It can be located on the airflow path of the electronic cigarette 1. The number of the atomizing surface 242b and the liquid-absorbing surface 242a may be one or more.

In the atomization assembly 10 of the embodiment, the working process is: the smoke liquid enters the porous ceramic body 242 from the liquid absorption hole 228, and the porous heat generating film 244 atomizes the liquid smoke in the porous ceramic body 242, and the smoke formed by the atomization. As the airflow passes through the air outlet 226 and the air flow passage 120, it is drawn into the user's mouth.

The porous ceramic body 242 having a porosity of 30% to 60% can block the liquid smoke and ensure the liquid guiding effect. The porous heat generating film 244 is used for atomizing the liquid smoke in the porous ceramic body 242, and the micropores on the porous heat generating film 244 can greatly increase the contact area with the smoke liquid and improve the atomization efficiency. The porous heat generating film 244 is located on the surface of the porous ceramic body 242 to facilitate the escape of the atomized smoke liquid from the porous ceramic body 242. The porous heat generating film 244 is in the form of a sheet, and the surface of the porous ceramic body 242 can be uniformly heated. Therefore, the temperature of the atomization is uniform, and the problem that the atomized particles are large due to the low local temperature does not occur, and the fog is ensured. The granules are uniform and the taste of the electronic cigarette 1 is improved.

Referring to FIG. 4 and FIG. 5, in one embodiment, the atomizing core 200 further includes a first sealing member 260. The first sealing member 260 is located in the atomizing chamber 222, and the inner wall of the sealing core body 220 and the porous ceramic body 242. The gap between the holes causes the porous heat generating film 244 to be isolated from the liquid collecting holes 228. In an embodiment, the core body 220 includes a barrel portion 232, and the air outlet 226 and the liquid suction hole 228 are both located on the bottom surface of the barrel portion 232. The porous ceramic body 242 is provided with a blow hole 2422, and the air hole 2422 communicates with the air outlet 226. The first seal 260 seals a gap between the porous ceramic body 242 and the side wall of the barrel 232, and a gap between the porous ceramic body 242 and the bottom surface of the barrel 232.

In one embodiment, the core body 220 further includes a connection portion 234 that is coupled to the barrel portion 232, the air inlet 224 being located on the connection portion 234, and the connection portion 234 being a conductor. The atomizing core 200 further includes an intake pipe 280 and an insulating sleeve 320, and the intake pipe 280 is a conductor disposed at the intake port 224. The insulating sleeve 320 is disposed between the intake pipe 280 and the connecting portion 234 to insulate the intake pipe 280 and the connecting portion 234. The connecting portion 234 and the intake pipe 280 are both conductors, and the connecting portion 234 is for electrically connecting the atomizing element 240 and the negative electrode of the power source assembly 20, and the air inlet tube 280 is for electrically connecting the atomizing element 240 and the positive electrode of the power source assembly 20. The insulating sleeve 320 is generally made of an elastic silicone material and has a sealing function.

Referring again to FIG. 6, in one embodiment, the atomizing element 240 further includes an electrode 246 and a wire 248. The number of electrodes 246 is at least two, and the two electrodes 246 are electrically connected to the porous heat generating film 244, respectively. Further, in one embodiment, both electrodes 246 are adjacent the edge of the porous heating film 244 and the two electrodes 246 are positioned opposite each other. Wire 248 is electrically coupled to electrode 246 by brazing techniques, and at least a portion of wire 248 extends into porous ceramic body 242 to ensure a secure connection. A wire 248 connecting one of the electrodes 246 may be located between the intake pipe 280 and the insulating sleeve 320, and a wire 248 connecting the other electrode 246 may be located between the insulating sleeve 320 and the connecting portion 234. The insulating sleeve 320 has elasticity to press the wire 248 to ensure connection reliability.

Referring to FIG. 4 and FIG. 5 again, in an embodiment, the atomizing core 200 further includes a liquid barrier 340 between the atomizing element 240 and the air inlet 224, and the liquid blocking plate 340 A through hole 342 having a diameter of 1 mm to 1.5 mm is opened. After the porous ceramic body 242 sucks the liquid smoke, the smoke liquid will drip from the atomizing element 240 in the case of vibration or the like, and the liquid blocking plate 340 can prevent the smoke liquid from flowing out from the air inlet 224. Moreover, when smoking, the airflow normally passes through the liquid barrier 340, and the smoke liquid dropped on the liquid barrier 340 is atomized with the airflow to the porous heat-generating film 244 to prevent oil leakage. The diameter of the through hole 342 on the liquid barrier 340 is larger than 1 mm, and the airflow can smoothly flow through the through hole 342, and is easy to manufacture. The diameter of the through hole 342 on the liquid barrier 340 is less than 1.5 mm, and the smoke liquid can be effectively prevented from flowing out due to the surface tension. The liquid barrier 340 may be made of plastic, silicone or the like.

In one of the embodiments, the volume of the micropores having a pore diameter of from 3 μm to 8 μm on the porous ceramic body 242 accounts for more than 60% of the volume of all the micropores on the porous ceramic body 242. The porous ceramic body 242 prevents the liquid smoke from rapidly flowing to one side of the porous heat-generating film 244, which is a plugging effect. At the same time, the porous ceramic body 242 allows the smoke liquid to relatively slowly penetrate into the contact portion of the porous heat-generating film 244. This is a liquid guiding effect. In the present embodiment, the effect of the plugging action of the porous ceramic body 242 and the effect of the liquid guiding action are excellent.

Further, in one embodiment, the porous heat generating film 244 is made of a metal, the porous heat generating film 244 has a thickness of 0.5 μm to 1.5 μm, and the pores of the porous heat generating film 244 have a pore diameter of 2 μm to 7 μm. Further, in an embodiment, the porous heat generating film 244 is made of one of titanium, nickel, and nickel chromium, and the porous heat generating film 244 has a thickness of 0.8 μm to 1 μm.

The porous heat generating film 244 can be formed on the porous ceramic body 242 by a vapor deposition method, and the porous heat generating film 244 can be ensured to have a certain thickness, and the porous heat generating film 244 can be ensured to have a porous form. Since the main micropore diameter of the porous ceramic body 242 is larger than the thickness of the porous heat generating film 244, the micropores on the porous ceramic body 242 are not blocked when the film is deposited on the porous ceramic body 242 by vapor deposition, thereby directly A porous heat generating film 244 is formed. Specifically, in an embodiment, the vapor deposition method includes a chemical vapor deposition method and a physical vapor deposition method, wherein the physical vapor deposition method includes evaporation and sputtering. In an embodiment, the liquid barrier 340 is further provided with a wire hole 344. The wire 248 passes through the wire hole 344, and the wire hole 344 is used to limit the position of the wire 248, so that short circuit can be avoided.

Referring again to FIG. 3, in one embodiment, the housing 100 includes a first tubular structure 160 and a second tubular structure 180, the diameter of the first tubular structure 160 being greater than the diameter of the second tubular structure 180, and the second tubular structure 180 being disposed Within the first tubular structure 160, a gas flow passage 120 is formed inside the second tubular structure 180, and a reservoir chamber 140 is formed between the second tubular structure 180 and the first tubular structure 160. Referring to FIG. 4 and FIG. 5 again, in an embodiment, the atomizing core 200 further includes an air outlet tube 360 and a second sealing member 380. The air outlet pipe 360 is disposed at the air outlet 226. The second sealing member 380 is sleeved on the air outlet pipe 360, and a part of the air outlet pipe 360 extends out of the second sealing member 380. The second seal 380 is located between the outlet pipe 360 and the second tubular structure 180, and the second seal 380 abuts the inner wall of the second tubular structure 180.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims (20)

1. An atomizing component of an electronic cigarette, comprising:

   a porous ceramic body comprising a liquid absorbing surface and an atomizing surface;

   A porous heat generating film is formed on the atomizing surface.
2. The atomizing element for an electronic cigarette according to claim 1, wherein a volume of the micropores having a pore diameter of from 3 μm to 8 μm on the porous ceramic body accounts for 60% of all pore volumes on the porous ceramic body. %the above.
3. The atomizing element for an electronic cigarette according to claim 2, wherein the porous heat generating film is made of a metal, and the porous heat generating film has a thickness of 0.5 μm to 1.5 μm.
4. The atomizing element for an electronic cigarette according to claim 3, wherein the pores on the porous heat-generating film have a pore diameter of from 2 μm to 7 μm.
5. The atomizing element for an electronic cigarette according to claim 3, wherein the porous heat generating film is made of one of titanium, nickel, and nickel chromium, and the porous heat generating film has a thickness of 0.8 μm to 1 μm.
6. The atomizing element for an electronic cigarette according to claim 1, wherein a pore diameter of the micropores on the porous ceramic body is larger than a thickness of the porous heat generating film.
7. The atomizing element for an electronic cigarette according to claim 1, wherein the porous ceramic body has a porosity of 30% to 60%.
8. The atomizing element for an electronic cigarette according to claim 1, wherein the porous heat generating film is formed on the porous ceramic body by a vapor phase deposition method.
9. The atomizing element for an electronic cigarette according to claim 8, wherein the porous heat generating film is formed on the porous ceramic body by vapor deposition or sputtering.
10. The atomizing element for an electronic cigarette according to claim 1, further comprising an electrode, the number of the electrodes being at least two, and the two electrodes are electrically connected to the porous heat generating film, respectively.
11. The atomizing element of an electronic cigarette according to claim 10, further comprising a wire electrically connected to said electrode by a brazing technique, at least a portion of said wire extending into said porous ceramic body.
12. An atomizing component for an electronic cigarette, comprising:

    a housing having an air flow passage and a liquid storage chamber for storing the smoke liquid;

    The atomizing core includes:

    a core body disposed in combination with the housing; an atomization chamber is defined in the core body, and an air inlet and an air outlet connected to the atomization chamber are further disposed on the core body;

    An atomizing element disposed in the atomization chamber, the atomizing element is configured to atomize the liquid smoke; the atomizing element comprises a porous ceramic body and a porous heat generating film, the porous ceramic body including a liquid absorption surface An atomizing surface, the porous heat generating film is formed on the atomizing surface;

    Wherein, the core body is further provided with a liquid suction hole communicating with the atomization chamber and the liquid storage chamber, and a liquid absorption surface of the porous ceramic body of the atomization element passes through the liquid absorption hole and the reservoir The liquid in the liquid chamber is in contact.
13. The atomizing assembly for an electronic cigarette according to claim 12, wherein said atomizing core further comprises a first sealing member, said first sealing member being located in said atomizing chamber, sealing said core body A gap between the inner wall and the porous ceramic body isolates the porous heat generating film from the liquid absorbing hole.
14. The atomizing assembly for an electronic cigarette according to claim 13, wherein the core body comprises a barrel portion, and the air outlet and the liquid suction hole are both located on a bottom surface of the barrel portion; The porous ceramic body is provided with a venting hole, and the venting hole communicates with the air outlet;

    The first seal seals a gap between the porous ceramic body and a sidewall of the barrel, and a gap between the porous ceramic body and a bottom surface of the barrel.
15. The atomizing assembly for an electronic cigarette according to claim 14, wherein the core body further comprises a connecting portion connected to the barrel portion, the air inlet is located on the connecting portion, and the connecting The part is a conductor;

    The atomizing core further includes an intake pipe and a heat insulating sleeve, the air intake pipe is a conductor disposed at the air inlet; the insulating sleeve is disposed between the air inlet pipe and the connecting portion, so that The intake pipe and the connecting portion are insulatedly connected.
16. The atomizing assembly for an electronic cigarette according to claim 12, wherein the atomizing core further comprises a liquid blocking plate, the liquid blocking plate being located between the atomizing element and the air inlet The through hole is provided with a through hole having a diameter of 1 mm to 1.5 mm.
17. The atomizing assembly for an electronic cigarette according to claim 16, wherein the atomizing element further comprises an electrode and a wire;

    The number of the electrodes is at least two, and the two electrodes are electrically connected to the porous heating film respectively;

    The wire is electrically connected to the electrode by a brazing technique, and at least a portion of the wire extends into the porous ceramic body;

    A wire hole is further defined in the liquid barrier plate, and the wire passes through the wire hole, and the wire hole is used to limit the position of the wire.
18. The atomizing assembly for an electronic cigarette according to claim 12, wherein said housing comprises a first tubular structure and a second tubular structure, said first tubular structure having a diameter larger than a diameter of said second tubular structure The second tubular structure is disposed within the first tubular structure, the air flow passage is formed inside the second tubular structure, and the liquid storage chamber is formed in the second tubular structure and the first Between tubular structures.
19. The atomizing assembly for an electronic cigarette according to claim 18, wherein the atomizing core further comprises an air outlet tube and a second sealing member;

    The air outlet pipe is disposed at the air outlet;

    The second sealing member is sleeved on the air outlet tube, and a part of the air outlet tube protrudes from the second sealing member; the second sealing member is located between the air outlet tube and the second tubular structure And the second seal abuts against an inner wall of the second tubular structure.
20. An electronic cigarette comprising: a power supply assembly and the atomization assembly of the electronic cigarette of claim 12; the power supply assembly being electrically connected to the atomization assembly.