# US 11,077,264 B2 · Electronic cigarette

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- Number: US 11,077,264 B2
- Document ID: US11077264B2
- Status: Granted
- Kind: B2
- Application number: 16/277,564
- Filed: 2019-02-15
- Published: 2019-06-13
- Granted: 2021-08-03
- Earliest claimed: 2016-08-15
- Assignees: Joyetech Europe Holding GmbH
- Applicants: Joyetech Europe Holding GmbH
- Inventors: Weihua Qiu
- Web page: https://patentgrep.com/patent/US11077264B2

## CPC

- A61M 15/06: Inhaling appliances shaped like cigars, cigarettes or pipes
- A24F 40/48: Fluid transfer means, e.g. pumps
- A24F 40/50: Control or monitoring
- A24F 40/60: Devices with integrated user interfaces
- A61M 11/042: {electrical}
- A24F 15/015: with means for refilling of liquid inhalable precursors
- A24F 40/10: Devices using liquid inhalable precursors
- A61M 11/007: {Syringe-type or piston-type sprayers or atomisers}
- A61M 15/0066: {with means for varying the dose size}
- A61M 2016/0021: {with a proportional output signal, e.g. from a thermistor}
- A61M 2016/0033: {electrical}
- A61M 2205/103: rotating
- A61M 2205/3334: Measuring or controlling the flow rate
- A61M 2205/3389: Continuous level detection (A61M2205/3393 takes precedence)
- A61M 2205/505: Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
- A61M 2205/8206: battery-operated
- A61M 2209/045: for filling, e.g. for filling reservoirs
- 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)}
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)

## Abstract

An electronic cigarette includes a liquid storage device a liquid storage chamber, an atomizing device comprising an atomizing chamber, a controller, and a driving mechanism. The driving mechanism is electrically connected to the controller. When the controller controls the liquid intake of the electronic cigarette, the controller controls the driving mechanism to drive the e-cigarette liquid in the liquid storage chamber to enter the atomizing chamber, thereby realizing the control of the amount of the e-cigarette liquid in the atomizing device. In use, the electronic cigarette is provided with a proper amount of e-cigarette liquid in the atomizing device, and there is no dry burning or liquid leakage due to insufficient atomization.

## Claims

### Claim 1

An electronic cigarette, comprising:
a liquid storage device comprising a liquid storage chamber;
an atomizing device comprising an atomizing chamber;
a controller; and
a driving mechanism,
wherein the driving mechanism is electrically connected to the controller, and, during operation, the controller controls the liquid intake of the electronic cigarette by controlling the driving mechanism to drive the e-cigarette liquid in the liquid storage chamber to enter the atomizing chamber,
wherein the electronic cigarette further comprises a housing, the liquid storage chamber is located in the housing, a liquid inlet is defined at the bottom of the liquid storage chamber, an opening is provided at the bottom wall of the housing corresponding to the liquid inlet,
wherein the electronic cigarette further comprises a liquid injection assembly for covering the opening,
wherein the liquid injection assembly comprises a mounting member, an opening and closing member, and a telescopic liquid filling tube fixedly connected to the mounting member, the opening and closing member is rotatably connected to the mounting member, the mounting member is connected to the housing, the upper port of the telescopic infusion tube is sealing connected to the opening, the opening and closing member has an open state and a closed state, when the opening and closing member is in the closed state, the lower port of the telescopic liquid filling tube is sealing abutted against the opening and closing member.

### Claim 2 (depends on 1)

The electronic cigarette according to claim 1, wherein the controller controls the driving mechanism to drive the e-cigarette liquid remaining in the atomization chamber to return to the liquid storage chamber at the end of operation.

### Claim 3 (depends on 1)

The electronic cigarette according to claim 1, wherein the electronic cigarette further comprises a communication groove in communication with the liquid storage chamber, the atomizing device further comprises an a liquid inlet, the atomizing chamber is in communication with liquid storage chamber through the liquid inlet,
wherein the driving mechanism comprises a driving motor, a screw rod and a slider, the screw rod and the slider are disposed in the communication groove, the driving motor is disposed on the side of the communication groove away from the liquid storage chamber, the slider is connected to the screw rod, and
wherein the lead screw is driven by the driving motor to drive the slider in a direction close to the liquid storage chamber or in a direction away from the liquid storage chamber.

### Claim 4 (depends on 3)

The electronic cigarette according to claim 3, wherein the slider is slidably connected to the screw rodfill, and, when the driving motor rotates, the screw rod is driven to rotate and drives slider to slide in a direction close to the liquid storage chamber or to slide away from the liquid storage chamber; or, the slider is disposed at one end of the screw rod near the liquid storage chamber, the screw rod is driven by the driving motor to make a telescopic motion and drives the slider to move in the direction close to or away from the liquid storage chamber in the communication groove.

### Claim 5 (depends on 3)

The electronic cigarette according to claim 3, wherein the controller comprises a control switch and a control board, the control switch is signally connected to the control board, the driving mechanism is electrically connected to the control board and controlled by the control board, the controller further comprises an input device, the input device is signally connected to the control board, the input device is configured for inputting desired operating temperature, operating power, and/or operating voltage to the control board, the input device is a touch display or a touch switch.

### Claim 6 (depends on 3)

The electronic cigarette according to claim 3, wherein the controller comprises a control switch and a control board, the control switch is signally connected to the control board, the driving mechanism is electrically connected to the control board and controlled by the control board, the control switch is an airflow sensor configured to detect the flow velocity of the airflow when the user smoking.

### Claim 7 (depends on 1)

The electronic cigarette according to claim 1, wherein the liquid storage device includes a liquid inlet tube, a first end of the liquid inlet tube is in communication with the atomizing chamber, a second end of the liquid inlet tube is in communication with the liquid storage chamber, the controller controls the driving mechanism to drive the e-cigarette liquid in the liquid storage chamber into the atomization chamber through the liquid inlet tube.

### Claim 8 (depends on 7)

The electronic cigarette according to claim 7, wherein the driving mechanism comprises a piston, a connecting member, and a driving motor, the piston is located in the liquid storage chamber and divides the liquid storage chamber into a cavity and a communication chamber, wherein the communication chamber is in communication with the atomizing chamber through the liquid inlet tube, the connecting member is connected between the piston and the driving motor and is configured to drive the piston to move toward the communication chamber.

### Claim 9 (depends on 8)

The electronic cigarette according to claim 8, wherein the second end of liquid inlet tube passes through the cavity and the piston in sequence, and the second end of the inlet tube is inserted into the communication chamber.

### Claim 10 (depends on 8)

The electronic cigarette according to claim 8, wherein the liquid storage device further comprises a connecting tube disposed between the communication chamber and the liquid inlet tube, and the communication chamber is in communication with the liquid inlet tube through the connecting tube.

### Claim 11 (depends on 8)

The electronic cigarette according to claim 8, wherein the connecting member includes a screw, a slider, a rail, and a connecting rod, wherein the lead screw is connected to the driving motor, the screw rod extends through the slider, the slider is slidably connected to the guide rail, one end of the connecting rod is fixedly connected to the slider, and the other end of the connecting rod is fixedly connected to the piston.

### Claim 12 (depends on 7)

The electronic cigarette according to claim 7, wherein the electronic cigarette comprises a liquid level detecting device disposed in the liquid storage chamber, the electronic cigarette further comprises a display screen, and the liquid level detecting device is electrically connected to the display screen.

### Claim 13 (depends on 1)

The electronic cigarette according to claim 1, wherein, when the liquid inlet is in communication with a liquid bottle, the drive motor is controlled to be reversed by the controller, the connecting member drives the piston to move toward the cavity to achieve automatic liquid injection.

### Claim 14 (depends on 1)

The electronic cigarette according to claim 1, wherein the telescopic liquid injection tube comprises a first tube and a multi-section telescopic tube, wherein the first tube is fixedly connected to the mounting member, and the two adjacent telescopic tubes are nested and connected.

### Claim 15 (depends on 1)

The electronic cigarette according to claim 1, wherein a single-conducting portion is located in the liquid inlet tube, and is configured to prevent the e-cigarette liquid in the atomizing chamber from flowing back into the liquid storage chamber when the e-cigarette liquid is injected into the liquid storage chamber.

### Claim 16 (depends on 1)

The electronic cigarette according to claim 1, wherein the controller includes a control board, a liquid inlet control switch and/or a liquid injection control switch, the liquid inlet control switch and/or the liquid injection control switch are signally connected to the control board, the driving mechanism is coupled controlled by the control board, and, when the liquid inlet control switch or the liquid injection control switch is turned on, the control board is triggered and the control board controls the movement of the driving mechanism.

### Claim 17 (depends on 1)

The electronic cigarette according to claim 1, wherein the controller further comprises a liquid injection amount control portion and/or a liquid intake amount control portion, the liquid injection amount control portion and/or liquid intake amount control portion is signally connected to the control board, the liquid injection amount control portion comprises a plurality of gear positions, each gear position corresponds to the amount of liquid injection each time; or, the liquid injection amount control portion is a touch screen typed liquid injection amount control portion, the touch screen typed injection amount control portion is configured to set liquid injection amount value.

### Claim 18 (depends on 1)

The electronic cigarette according to claim 1, wherein the controller further comprises an atomization control switch, the liquid inlet control switch, and the atomization control switch is controlled separately or coupled controlled.