# US 12,213,536 B2 · Electronic cigarette

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- Number: US 12,213,536 B2
- Document ID: US12213536B2
- Status: Granted
- Kind: B2
- Application number: 18/135,713
- Filed: 2023-04-17
- Published: 2023-08-10
- Granted: 2025-02-04
- Earliest claimed: 2016-06-27
- Assignees: China Tobacco Hunan Industrial Co., Ltd.
- Applicants: China Tobacco Hunan Industrial Co., Ltd.
- Inventors: Jianfu Liu; Kejun Zhong; Xiaoyi Guo; Wei Huang; Yuangang Dai; Xinqiang Yin; Jianhua Yi; Hong Yu; Yang Wang
- Web page: https://patentgrep.com/patent/US12213536B2

## CPC

- A24F 7/00: Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders
- A24F 40/05: Devices without heating means
- A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts
- A24F 40/42: Cartridges or containers for inhalable precursors
- A24F 40/46: Shape or structure of electric heating means
- B05B 7/0012: {Apparatus for achieving spraying before discharge from the apparatus}
- B05B 17/0646: {Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto}
- A24F 40/20: Devices using solid inhalable precursors
- A61M 11/042: {electrical}
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

An electronic cigarette, comprising a shell and a power supply installed in the shell, and the electronic cigarette further comprises a tobacco bin which is provided in the shell and communicates with the outside air, and a suction nozzle which communicates with the tobacco bin; and a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell, the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin, and the piezoelectric ceramic piece is electrically connected with the power supply. The electronic cigarette has a simple atomization mode and directly atomizes the tobacco material by means of the high frequency vibration and heat of the piezoelectric ceramic.

## Claims

### Claim 1

An electronic cigarette, comprising a shell and a power supply installed in the shell, wherein:
the electronic cigarette further comprises a tobacco bin which is provided in the shell and communicates with an outside air, and a suction nozzle which communicates with the tobacco bin; and
a piezoelectric ceramic piece which clings to the tobacco bin is provided in the shell,
the piezoelectric ceramic piece is a bearing surface of the tobacco bin on which a tobacco material is loaded as well as a heating surface of the tobacco bin, wherein the piezoelectric ceramic piece is vertically installed at an upper part of the shell, and the tobacco bin is provided on one side of the piezoelectric ceramic piece;
a tobacco bin cover capable of sealing the tobacco bin is provided at the tobacco bin, and an air inlet which communicates with the tobacco bin is provided in the tobacco bin cover;
and the piezoelectric ceramic piece is electrically connected with the power supply.

### Claim 2 (depends on 1)

The electronic cigarette of claim 1, wherein the shell comprises a body and a back cover detachably connected with the body; and
a battery and a control board electrically connected with the battery are provided in the shell, and a spring electrode is provided at an upper part of the control board; and
the piezoelectric ceramic piece is provided at an upper part of the body, and one side surface of the piezoelectric ceramic piece deviated from the tobacco bin is in contact with the spring electrode.

### Claim 3 (depends on 2)

The electronic cigarette of claim 2, wherein a piezoelectric ceramic piece fixing base is provided at the upper part of the body.

### Claim 4 (depends on 2)

The electronic cigarette of claim 2, wherein the suction nozzle is detachably connected with a top of the body, and a connected joint between the suction nozzle and the top of the body is sealed by a sealing ring.

### Claim 5 (depends on 1)

The electronic cigarette of claim 1, wherein the tobacco bin cover comprises an overturning cover hinged with the shell and an impaction device capable of pressing the tobacco material on the side surface of the piezoelectric ceramic piece is fixedly installed on an inner surface of the overturning cover;
an air inlet through hole is provided in the overturning cover, and the impaction device is provided with an airflow passage which communicates the air inlet through hole with the tobacco bin.

### Claim 6 (depends on 5)

The electronic cigarette of claim 5, wherein the impaction device is a telescopic spring box, which comprises an inner cover fixed to the inner surface of the overturning cover, a spring bracket which is in fixed connection with the inner cover, a first spring cover sheathed in the spring bracket and capable of moving horizontally, and a spring, wherein one end of the spring is connected with the inner cover, and another end of the spring is connected with the first spring cover; and
the inner cover, the spring bracket and the first spring cover constitute a sealed hollow cavity structure so as to seal the spring in a hollow cavity; and a first air inlet pinhole is provided, in a position corresponding to the air inlet through hole, in the inner cover, and a first air outlet pinhole which communicates with the tobacco bin is provided in the first spring cover.

### Claim 7 (depends on 1)

The electronic cigarette of claim 1, wherein the tobacco bin cover comprises a front cover which is in threaded connection with the shell, and an impaction device capable of pressing the tobacco material on the side surface of the piezoelectric ceramic piece is in fixed connection with an inner side of the front cover;
a second air inlet pinhole is provided in the front cover, and the impaction device is provided with an airflow passage which communicates the second air inlet pinhole with the tobacco bin; and
after the front cover is screwed in the shell, the front cover is flush with a surface of the shell.

### Claim 8 (depends on 7)

The electronic cigarette of claim 7, wherein the impaction device comprises a hollow fixing ring sheathed on the inner side of the front cover, a second spring cover sheathed on an inner side of the fixing ring and capable of moving horizontally, and a spring, wherein one end of the spring is connected with the inner side of the front cover, and another end of the spring is connected with the second spring cover; and
the front cover, the fixing ring and the second spring cover constitute a sealed hollow cavity structure so as to seal the spring in the hollow cavity; and a second air outlet pinhole which communicates with the tobacco bin is provided in the second spring cover.