Atomizer for electronic cigarette

Patent metadata

Field	Value
Publication number	US-11006670-B2
Application number	US-201815871776-A
Country	US
Kind code	B2
Filing date	Jan 15, 2018
Priority date	Jan 16, 2017
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

An atomizer for an electronic cigarette is disclosed, including: a housing unit defining therein a tobacco liquid chamber configured for storing a tobacco liquid; a first casing body defining thereon a first liquid guide hole configured for allowing the tobacco liquid to pass through; an atomization device; a control valve configured for closing or opening the first liquid guide hole to control the tobacco liquid to enter the atomization device; and a base assembly detachably connected to the housing unit and supporting the atomization device and configured to be in linkage with the control valve. The base assembly can drive the control valve to close the first liquid guide hole while the base assembly is detached from the housing unit. The base assembly can drive the control valve to open the first liquid guide hole while the base assembly is assembled on the housing unit.

First claim

What is claimed is:

1. An atomizer for an electronic cigarette, comprising:
a housing unit, the housing unit defining therein a tobacco liquid chamber configured for storing tobacco liquid;
a first casing body located in the tobacco liquid chamber, the first casing body defining thereon a first liquid guide hole configured for allowing the tobacco liquid to pass through;
an atomization device located inside the first casing body, the atomization device being configured for aerosolizing the tobacco liquid to generate an aerosol for a user to inhale, the atomization device defining a liquid inlet hole allowing the tobacco liquid to pass through;
a control valve, the control valve being configured for closing or opening the first liquid guide hole to control the tobacco liquid to enter the atomization device; the control valve defining a second liquid guide hole thereon; and
a base assembly detachably connected to the housing unit and supporting the atomization device, the base assembly being configured to be in linkage with the control valve, the base assembly being capable of driving the control valve to close the first liquid guide hole while the base assembly is detached from the housing unit, and the base assembly being capable of driving the control valve to open the first liquid guide hole while the base assembly is assembled on the housing unit,
wherein relative rotation between the atomization device and the control valve is forbidden so that the second liquid guide hole and the liquid inlet hole are always aligned and in communication;
wherein the control valve comprises a second casing body located between the first casing body and the atomization device, the second casing body defines thereon the second liquid guide hole configured for allowing the tobacco liquid to pass through, and the base assembly is capable of driving the second casing body to rotate so that the second liquid guide hole and the first liquid guide hole are staggered or overlapped;
wherein the second casing body defines a notch at a lower end thereof, the atomization device has a projecting portion disposed on an outer side thereof, and, when the atomization device is inserted into the second casing body, the projecting portion enters the notch so as to prevent rotation occurring between the atomization device and the second casing body.

2. The atomizer according to claim 1 , wherein the second casing body is configured to be in threaded connection with the base assembly, and the second casing body has a threaded portion disposed at the lower end thereof.

3. The atomizer according to claim 1 , wherein the tobacco liquid chamber has a fixing sleeve disposed at the bottom thereof, the fixing sleeve being configured for fixing the first casing body and the second casing body, and wherein the second casing body is capable of rotating relative to the fixing sleeve.

4. The atomizer according to claim 3 , wherein the second casing body has a flange disposed on a side wall thereof, the flange has a rotation angle limit groove concaved inwards, and the fixing sleeve has a stop block disposed on an inner side thereof, the stop block being matched with the rotation angle limit groove.

5. The atomizer according to claim 4 , wherein the rotation angle limit groove has a corresponding arc angle of 45 degrees.

6. The atomizer according to claim 2 , wherein the base assembly comprises an outer threaded sleeve configured to be in threaded connection with the second casing body, and an electrode column located at the center of the outer threaded sleeve and insulated from the outer threaded sleeve.

7. The atomizer according to claim 6 , wherein the atomization device comprises an outer electrode portion configured to be abutted against the outer threaded sleeve and an inner electrode portion configured to be abutted against the electrode column.

8. The atomizer according to claim 1 , wherein the atomization device comprises an outer sleeve, a heating element located in the outer sleeve, and a liquid storage layer surrounding a periphery of the heating element.

9. The atomizer according to claim 8 , wherein the outer sleeve defines the liquid inlet hole in a side wall thereof, the liquid inlet hole being capable of communicating with the first liquid guide hole and the second liquid guide hole.

10. The atomizer according to claim 1 , further comprising a cover body assembly detachably connected to an upper end of the housing unit, the tobacco liquid chamber defining a liquid refill port configured for refilling tobacco liquid in an upper part thereof, and a cover body assembly being configured for sealing the liquid refill port.

11. The atomizer according to claim 10 , wherein the cover body assembly is configured to be in linkage with the first casing body; while the cover body assembly is detached from the housing unit, the cover body assembly is capable of driving the first casing body to rotate and allowing the first liquid guide hole to be closed, thereby preventing the tobacco liquid flowing into the atomization device; and, while the cover body assembly is assembled on the housing unit, the cover body assembly is capable of driving the first casing body to rotate and allowing the first liquid guide hole to be opened.

12. The atomizer according to claim 11 , wherein the cover body assembly comprises a cover body, an outer tube connected to the cover body, and an inner tube located in the outer tube, the outer tube being configured to be in threaded connection with the first casing body.

13. The atomizer according to claim 12 , wherein the first casing body has a plurality of screw threads disposed on an inner wall at an upper end thereof and defines an arc groove on a lower edge thereof, the arc groove being configured for limiting a range of rotation angle of the first casing body.

14. The atomizer according to claim 13 , wherein the arc groove has an angle of 45 degrees.

15. The atomizer according to claim 12 , wherein the inner tube extends into the first casing body and is aligned to the atomization device, the cover body has an air inlet disposed thereon; an annular space is defined between the inner tube, the outer tube, and the first casing body, the annular space forms an air inlet passage, the air inlet passage is configured to be in communication with the air inlet, and the inner tube defines an air outlet passage therein.

16. An atomizer for electronic cigarette comprising:
a housing unit, the housing unit defining therein a tobacco liquid chamber configured for storing tobacco liquid, and the tobacco liquid chamber having a liquid refill port;
a first casing body located in the tobacco liquid chamber, the first casing body defining thereon a first liquid guide hole configured for allowing the tobacco liquid to pass through;
an atomization device located inside the first casing body, the atomization device being configured for aerosolizing the tobacco liquid to generate an aerosol for a user to inhale; and
a cover body assembly detachably connected to the housing unit and sealing the liquid refill port, the cover body assembly being configured to be in linkage with the first casing body; while the cover body assembly is detached from the housing unit, the cover body assembly being capable of driving the first casing body to rotate and allowing the first liquid guide hole to be closed, thereby preventing the tobacco liquid from flowing into the atomization device; and, while the cover body assembly is assembled on the housing unit, the cover body assembly being capable of driving the first casing body to rotate and allowing the

Assignees

• Shenzhen First Union Tech Co

Inventors

• Chen Zhiquan
• Li Yonghai
• Xu Zhongli
• Zhao Xiaoqiang

Classifications

• A24F40/485

  Valves; Apertures · CPC title

• A24F40/42 Primary

  Cartridges or containers for inhalable precursors · CPC title

• A61M2205/121

  interface between cassette and base · CPC title

• A24F15/015

  with means for refilling of liquid inhalable precursors · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title