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EP-4094601-B1 - ATOMIZER AND ELECTRONIC CIGARETTE COMPRISING THE SAME

EP4094601B1EP 4094601 B1EP4094601 B1EP 4094601B1EP-4094601-B1

Inventors

  • LIU, TUANFANG

Dates

Publication Date
20260513
Application Date
20211124

Claims (7)

  1. An atomizer, comprising an outer glass tube (1), a heating element (4), and an inner glass tube (1-1); wherein the inner glass tube (1-1) is disposed in and is integrated with the outer glass tube (1); an inner wall of the outer glass tube (1) and an outer wall of the inner glass tube (1-1) form a cavity for accommodating e-liquid; the heating element (4) is disposed in the outer glass tube (1) and below the inner glass tube (1-1) and the cavity; and when in use, the heating element (4) atomizes the e-liquid to produce vapor flowing from the inner glass tube (1-1) to the outer glass tube (1) for inhaling by a user; characterised in that: the heating element (4) is in the shape of a hollow round cake, and an edge of an upper surface of the round cake is provided with a plurality of grooves as air outlets.
  2. The atomizer of claim 1, wherein one end of the outer glass tube (1) is provided with a fixing sleeve (2); the fixing sleeve (2) comprises at least one notch; the heating element (4) is disposed in the fixing sleeve (2) and the plurality of grooves is partially covered by the fixing sleeve (2); the plurality of grooves is below the at least one notch; and the cavity for accommodating e-liquid is above the at least one notch.
  3. The atomizer of claim 1, wherein the atomizer further comprises a first silica ring (3); the first silica ring (3) is hollow and disposed between the heating element (4) and a bottom end of the inner glass tube (1-1); a central hollow part of the first silica ring (3), a central hollow part of the heating element (4) and the inner glass tube (1-1) communicates with one another to function as an air passage.
  4. The atomizer of claim 2, wherein the atomizer further comprises a leak-proof ring (6) disposed in the fixing sleeve (2) and below the heating element (4) to fix and support the heating element (4).
  5. The atomizer of claim 2, wherein the atomizer further comprises a fixed ring (8) and a base (9); the fixed ring (8) is screwed on the base (9) to support the outer glass tube (1); a bottom end of the outer glass tube (1) and the fixing sleeve (2) are both disposed on the base (9).
  6. The atomizer of claim 5, wherein the base (9) comprises a plurality of air inlets.
  7. An electronic cigarette, comprising the atomizer of any one of claims 1-6 and a battery assembly.

Description

The disclosure relates to an atomizer and an electronic cigarette comprising the same. Conventional atomizers have complex e-liquid storage structure and air/vapor channel, and the materials of the components are costly. In addition, the components of the atomizers that are in contact with the e-liquid are metal. After a period of use, the metal may be corroded by the e-liquid and thus the quality of the e-liquid is adversely affected. CN 112189900 A, CN 112120294 A, and US 2020/085108 A1 recite an atomizer that includes an outer glass tube, a heating element, and an inner glass tube; in which the space between the outer and inner glass tubes is used for accommodating e-liquid, the inner glass tube is used for conveying vapor, and the heating element is disposed in the outer glass tube and below the inner glass tube and the space for atomizing the e-liquid. The disclosure provides an atomizer comprising an outer glass tube, a heating element, and an inner glass tube; the inner glass tube is disposed in and is integrated with the outer glass tube; an inner wall of the outer glass tube and an outer wall of the inner glass tube form a cavity for accommodating e-liquid; the heating element is disposed in the outer glass tube and below the inner glass tube and the cavity; and when in use, the heating element atomizes the e-liquid to produce vapor flowing from the inner glass tube to the outer glass tube for inhaling by a user. The heating element is in the shape of a hollow round cake, and an edge of an upper surface of the round cake is provided with a plurality of grooves as air outlets. In a class of this embodiment, one end of the outer glass tube is provided with a fixing sleeve; the fixing sleeve comprises at least one notch; the heating element is disposed in the fixing sleeve and the plurality of grooves is partially covered by the fixing sleeve; the plurality of grooves is below the at least one notch; and the cavity for accommodating e-liquid is above the at least one notch. In a class of this embodiment, the atomizer further comprises a first silica ring; the first silica ring is hollow and disposed between the heating element and a bottom end of the inner glass tube; a central hollow part of the first silica ring, a central hollow part of the heating element and the inner glass tube communicates with one another to function as an air passage. In a class of this embodiment, the atomizer further comprises a leak-proof ring disposed in the fixing sleeve and below the heating element to fix and support the heating element. In a class of this embodiment, the atomizer further comprises a fixed ring and a base; the fixed ring is screwed on the base to support the outer glass tube; a bottom end of the outer glass tube and the fixing sleeve are both disposed on the base. In a class of this embodiment, the base comprises a plurality of air inlets. The disclosure also provides an electronic cigarette comprising the aforesaid atomizer and a battery assembly. The following advantages are associated with the atomizer and an electronic cigarette comprising the same of the disclosure: 1. The atomizer comprises an outer glass tube and an inner glass tube. The inner wall of the outer glass tube and the outer wall of the inner glass tube form a cavity for accommodating e-liquid, and the hollow part of the inner glass tube functions as an air passage, thus solving the problem of conventional atomizers having complex e-liquid storage structure and air/vapor channel. 2. The heating element is in the shape of a hollow round cake, and the heating wire is horizontally bent and coiled back and forth, which has a large heating area and can produce large amount of smoke/vapor. 3. The guiding and sealing structures, the e-liquid storage structure, and the air passages of the atomizer are made of glass, which is environmentally friendly and healthy. FIG. 1 is an exploded view of an atomizer according to one embodiment of the disclosure;FIG. 2 is a perspective view of an atomizer according to one embodiment of the disclosure;FIG. 3 is a sectional view of an atomizer according to one embodiment of the disclosure; andFIG. 4 shows an air flow direction of an atomizer according to one embodiment of the disclosure. To further illustrate, embodiments detailing an atomizer and an electronic cigarette comprising the same are described below. It should be noted that the following embodiments are intended to describe and not to limit the disclosure. As shown in FIGS. 1-3, an atomizer comprises an outer glass tube 1, an inner glass tube 1-1, a fixing sleeve 2, a first silica ring 3, a heating element 4, a decorative ring 5, a leak-proof ring 6, a second silica ring 7, a fixed ring 8, a base 9, an insulation ring 10, and an electrode 11. The inner wall of the outer glass tube 1 and the outer wall of the inner glass tube 1-1 form a cavity for accommodating e-liquid. The inner glass tube 1-1 functions as a duct for discharging air and vapor. Th