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1. WO2020193659 - ELECTRONIC CIGARETTE WITH WICK

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. An electronic cigarette comprising:

a power supply portion comprising electrical circuitry and a heater, and a replaceable cartridge comprising a liquid store;

wherein the power supply portion further comprises a fluid transfer element having an elongated shape, the fluid transfer element comprises a first wicking part extending outwardly from the power supply portion as a free end and a second wicking part configured to deliver liquid to the heater for vaporization, and

wherein the power supply portion comprises a seating configured to fixedly attach to the second wicking part of the fluid transfer element and wherein the first wicking part is configured to extend into the liquid store when the power supply portion is connected to the cartridge, and wherein the fluid transfer element is removable from the seating of the power supply portion and the heater such that the fluid transfer element can be replaced; and

wherein the replaceable cartridge is removably coupleable to the power supply portion such that the first wicking part can be engaged and disengaged from the liquid store and, when disengaged, the fluid transfer element is a part of the power supply portion.

2. The electronic cigarette of claim 1 , wherein the fluid transfer element is an elongated wick, and the first wicking part and the second wicking part are respectively located at two opposite distal ends of the elongated wick.

3. The electronic cigarette of any preceding claim, wherein the heater at least partially surrounds the second wicking part of the fluid transfer element.

4. The electronic cigarette of any preceding claim, wherein the cartridge has a housing and wherein a first end of the cartridge housing is configured as a first connection portion;

the power supply portion has a housing and wherein a first end of the power supply portion housing is configured as a second connection portion; and

the first connection portion of the cartridge housing is configured to connect to the second connection portion of the power supply portion.

5. The electronic cigarette of claim 4, wherein the second connection portion is configured as a free end protruding from the power supply portion into which the first connection portion of the cartridge is received.

6. The electronic cigarette of claim 5, wherein the second connection portion is tubular and extends at least partially over the first wicking part.

7. The electronic cigarette of claim 4, wherein the first connection portion is configured as a free end, protruding from the cartridge housing into which the second connection portion of the power supply portion is received.

8. The electronic cigarette of any preceding claim, wherein there is a gap between the second wicking part and the heater.

9. The electronic cigarette of any preceding claim, wherein the power supply portion further comprises a vaporization chamber, and wherein the cartridge further comprises a flow tube extending through the liquid store to a mouthpiece such that vapour can pass from the vaporisation chamber to the mouthpiece.

10. The electronic cigarette of any preceding claim, wherein the cartridge comprises a closable opening configured to be opened upon engagement with the first wicking part of the fluid transfer element and wherein the closable opening of the cartridge is closed when the cartridge is disconnected from the power supply portion.

11. The electronic cigarette of claim 10, wherein the closable opening comprises a valve, wherein the valve is biased to a closed position.

12. The electronic cigarette of claim 1 1 wherein the valve comprises:

a channel extending into the liquid store from the closable opening with at least one aperture in housing of the channel arranged to provide a fluid connection between the channel and the liquid store, a closing member and a biasing member arranged to bias the closing member to close the closable opening, wherein the channel is arranged to receive the first wicking part such that receiving the first wicking part pushes the closing member inward to the liquid store and compresses the biasing member, such that liquid can flow from the liquid store by the at least one aperture to the first wicking part received in the channel.

13. The electronic cigarette of any preceding claim, wherein the liquid store comprises a porous element, wherein the porous element is arranged to transfer liquid to the fluid transfer element.

14. The electronic cigarette of any preceding claim, wherein the heater and the fluid transfer element are mounted on a support that is removable from the seating of the power supply portion such that the fluid transfer element and the heater can be replaced.