Induction Heating Assembly for a Vapour Generating Device

Abstract

An induction heating assembly for a vapour generating device includes a rechargeable power source and an induction coil. The induction coil is arranged to heat, in use, a susceptor and is also arranged to receive, in use, an electromagnetic field generated by an external source to charge the power source.

1 . A vapour generating device for generating a vapour to be inhaled by a user by inductively heating a vaporisable substance comprising:
 an induction heating assembly comprising an induction coil, a rechargeable power source and an induction controller,   wherein the induction coil is substantially cylindrical in shape and wherein the induction controller is configured to be manually operated by a user to select a heat setting for adjusting a current through the induction coil.   
     
     
         2 . The vapour generating device according to  claim 1 , wherein the induction heating assembly is configured to operate at a frequency of between 80 kHz and 500 kHz. 
     
     
         3 . The vapour generating device according to  claim 1 , wherein the induction heating assembly is configured to operate at a frequency of between 80 kHz and 250 kHz. 
     
     
         4 . The vapour generating device according to  claim 1 , wherein the induction heating assembly is configured to operate at a frequency of between 150 kHz and 500 kHz. 
     
     
         5 . The vapour generating device according to  claim 1 , wherein the induction heating assembly is configured to operate at a frequency of between 150 kHz and 250 kHz. 
     
     
         6 . The vapour generating device according to  claim 1 , wherein the induction heating assembly is configured to operate at a frequency of between 150 kHz and 200 kHz. 
     
     
         7 . The vapour generating device according to  claim 1 , wherein the induction controller is configured to adjust the current through the induction coil according to predetermined parameters. 
     
     
         8 . The vapour generating device according to  claim 1 , further comprising a heating compartment configured to receive a substantially cylindrical member to be heated. 
     
     
         9 . The vapour generating device according to  claim 8 , further comprising a substantially cylindrical member including a vaporisable substance. 
     
     
         10 . The vapour generating device according to  claim 9 , wherein the vaporisable substance is tobacco. 
     
     
         11 . The vapour generating device according to  claim 9 , wherein the substantially cylindrical member further includes a body having an air permeable layer or membrane that contains the vaporisable substance. 
     
     
         12 . The vapour generating device according to  claim 11 , wherein the body is formed substantially in the shape of a stick. 
     
     
         13 . The vapour generating device according to  claim 9 , wherein the vaporisable substance is wrapped in paper. 
     
     
         14 . The vapour generating device according to  claim 8 , further comprising an air inlet arranged to provide air to the heating compartment and an air outlet in communication with the heating compartment. 
     
     
         15 . The vapour generating device according to  claim 14 , wherein the device is configured such that vapour generated by heating a vaporisable substance exits the heating compartment through the air outlet to be inhaled by a user of the device, and wherein the air outlet is removable from the device. 
     
     
         16 . The vapour generating device according to  claim 1 , wherein the induction coil comprises a Litz wire or Litz cable. 
     
     
         17 . The vapour generating device according to  claim 1 , further comprising a mouthpiece configured to be installed on the device. 
     
     
         18 . The vapour generating device according to  claim 1 , wherein the induction coil is configured to receive power generated by an external source to inductively and wirelessly charge the rechargeable power source. 
     
     
         19 . A vapour generating device charging system comprising:
 the vapour generating device according to  claim 1 , and   a charging device configured to provide wireless charging to the rechargeable power source of the vapor generating device.   
     
     
         20 . A system for generating a vapour to be inhaled by a user by inductively heating a vaporisable substance comprising:
 a susceptor,   an induction coil configured to heat the susceptor;   a rechargeable power source; and   an induction controller,   wherein the induction coil is substantially cylindrical in shape and wherein the induction controller is configured to be manually operated by a user to select a heat setting for adjusting a current through the induction coil.   
     
     
         21 . The system according to  claim 20 , wherein the susceptor is comprised of a material that includes at least one of aluminium, iron, nickel, stainless steel, or alloys thereof. 
     
     
         22 . The system according to  claim 20 , wherein the susceptor is comprised of Nickel Chromium. 
     
     
         23 . The system according to  claim 20 , further comprising a heating compartment configured to receive a vaporisable substance, and wherein the susceptor is configured to be in indirect contact with the vaporisable substance. 
     
     
         24 . The system according to  claim 20 , further comprising a mouthpiece.