A Cartridge for a Vapour Generating Device

Abstract

A vapour generating device has a cartridge and a base part having a heat source, the cartridge having a liquid reservoir containing a vapour generating liquid, a vaporization chamber in communication with the reservoir, at least one air channel extending from an air inlet, through the vaporisation chamber to an air outlet and a fluid transfer medium extending from the reservoir to the chamber. A first portion of the fluid transfer medium extends substantially vertically along a longitudinal axis of the cartridge and a second portion extends in a different plane to the first portion, the first portion being at least double the length of the second portion which extends in a plane transverse to the air flow channel.

1 . A cartridge for a vapour generating device, the cartridge being configured to thermically connect to a base part having at least one heat source, the cartridge comprising: a liquid reservoir for containing a vapour generating liquid; a vaporization chamber in communication with the liquid reservoir; at least one air channel extending from an air inlet, through the vaporisation chamber to an air outlet; and a fluid transfer medium extending from the liquid reservoir to the vaporization chamber for absorbing and transferring liquid to the vaporization chamber, wherein at least a first portion of the fluid transfer medium extends substantially along a longitudinal axis of the cartridge and a second portion extends in a different plane or axis to the first portion, the first portion being of a greater length than a length of the second portion. 
     
     
         2 . A cartridge for a vapour generating device, the cartridge being configured to thermically connect to a base part having at least one heat source, the cartridge comprising: a liquid reservoir for containing a vapour generating liquid; a vaporization chamber in communication with the liquid reservoir; at least one air channel extending from an air inlet, through the vaporisation chamber to an air outlet; and a fluid transfer medium extending from the liquid reservoir to the vaporization chamber for absorbing and transferring liquid to the vaporization chamber, wherein at least a first portion of the fluid transfer medium extends substantially along a longitudinal axis of the cartridge and a second portion extends in a different plane or axis to the first portion, the second portion extending in a plane transverse to the air flow channel. 
     
     
         3 . The cartridge as claimed in  claim 1 , wherein the second portion extends in a plane transverse to the air flow channel. 
     
     
         4 . The cartridge as claimed in  claim 2 , wherein the a length of the first portion is at least a third longer than a length of the second portion. 
     
     
         5 . The cartridge as claimed in  claim 1 , wherein the second portion of the fluid transfer medium is substantially planar, in a plane being defined by a first axis and a second axis, wherein the first axis is transverse to a predominant direction of air flow through the vaporisation chamber and the second axis is substantially parallel to the predominant direction of airflow through the vaporisation chamber. 
     
     
         6 . The cartridge as claimed in  claim 1 , wherein at least the second portion of the fluid transfer medium is at least partially deformable. 
     
     
         7 . The cartridge as claimed in  claim 1 , wherein the first portion extends substantially vertically at least partially into the liquid reservoir and the second portion protrudes into and terminates in the vaporisation chamber. 
     
     
         8 . The cartridge as claimed in  claim 5 , wherein a length to width ratio of the planar fluid transfer medium is at least 2.0 and/or a ratio of the length of the first portion to the length of the second portion is at least 1.2:1. 
     
     
         9 . The cartridge as claimed in  claim 1 , wherein the fluid transfer medium has a substantially L or U-shaped profile. 
     
     
         10 . The cartridge as claimed in  claim 1 , wherein the first portion of the fluid transfer medium is substantially straight, or the first portion of the fluid transfer medium is curved. 
     
     
         11 . The cartridge as claimed in  claim 1 , wherein at least the second portion of the fluid transfer medium is provided with a support structure. 
     
     
         12 . The cartridge as claimed in  claim 11 , wherein the support structure is provided over an intended upper surface of the second portion, opposing a surface configured to contact the heat source. 
     
     
         13 . The cartridge as claimed in  claim 1 , wherein at least part of the second portion of the fluid transfer medium is structured to form at least one air flow channel within the fluid transfer medium. 
     
     
         14 . The cartridge as claimed in  claim 13 , wherein the at least one air flow channel within the fluid transfer medium extends axially or parallel with the at least one air channel of the cartridge. 
     
     
         15 . The cartridge as claimed in  claim 1 , wherein at least one leak prevention member is provided in the at least one air channel, each leak prevention member being a one-way valve or an S-shaped channel. 
     
     
         16 . A vapour generating device comprising: a base part having at least one heat source and a power supply, and the cartridge according to  claim 1  connected to the base part, wherein the second portion of the fluid transfer medium at least partially contacts the at least one heat source. 
     
     
         17 . The cartridge as claimed in  claim 1 , wherein the first portion extends substantially vertically at least partially into the liquid reservoir and the second portion protrudes into and terminates in the vaporisation chamber, substantially perpendicularly to the first portion. 
     
     
         18 . The vapour generating device according to  claim 16 , wherein the second portion of the fluid transfer medium deforms on contact with the at least one heat source to conform with a profile of the at least one heat source. 
     
     
         19 . The cartridge as claimed in  claim 2 , wherein the first portion extends substantially vertically at least partially into the liquid reservoir and the second portion protrudes into and terminates in the vaporisation chamber. 
     
     
         20 . A vapour generating device comprising: a base part having at least one heat source and a power supply, and the cartridge according to  claim 2  connected to the base part, wherein the second portion of the fluid transfer medium at least partially contacts the at least one heat source.