Induction Heating Assembly For A Vapour Generating Device

Patent metadata

Field	Value
Publication number	US-2020170300-A1
Application number	US-201816638294-A
Country	US
Kind code	A1
Filing date	Sep 3, 2018
Priority date	Sep 6, 2017
Publication date	Jun 4, 2020
Grant date	—

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.

First claim

1 . An induction heating assembly for a vapour generating device, the heating assembly comprising:
a rechargeable power source; and an induction coil; wherein 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.

2 . The induction heating assembly according to claim 1 , further comprising:
a rectifier arranged to change a high-frequency alternating current induced in the induction coil by an electromagnetic field generated by the external source into a form suitable for charging the rechargeable power source.

3 . The induction heating assembly according to claim 2 , wherein the rectifier is arranged to change the high-frequency alternating current from the induction coil into a direct current.

4 . The induction heating assembly according to claim 3 , further comprising:
an inverter arranged to change a direct current from the power source to an alternating high-frequency current; and an induction controller arranged to be, in use, in electrical connection with the power source, the induction coil, the rectifier, and the inverter such that, in use, the alternating high-frequency current can be selectively supplied to the induction coil and a susceptor can be inductively heated by the induction coil and, in use, a direct current can be selectively supplied to the power source when power is received at the induction coil in the form of an electromagnetic field generated by an external source, to inductively charge the power source.

5 . The induction heating assembly according to claim 1 , wherein the induction coil is substantially cylindrical in shape.

6 . The induction heating assembly according to claim 4 , wherein the inverter and the rectifier are the same member arranged to selectively change a direct current from the power source to an alternating high-frequency current, and to selectively change an alternating high-frequency current from the induction coil to a direct current.

7 . The induction heating assembly according to claim 1 , wherein the assembly is arranged to receive at least a portion of an external source of an electromagnetic field within its volume.

8 . The induction heating assembly according to claim 1 , wherein at least a portion of the assembly is arranged to be, in use, inserted in a volume of an external source of an electromagnetic field.

9 . A vapour generating device comprising:
the induction heating assembly according to claims 1 ; a heating compartment arranged to receive a body comprising a vaporisable substance and an induction heatable susceptor; an air inlet arranged to provide air to the heating compartment; and an air outlet in communication with the heating compartment.

10 . The vapour generating device according to claim 9 , wherein the heating compartment is arranged to receive a substantially cylindrical vaporisable article.

11 . A vapour generating device charging system comprising:
the induction heating assembly according to claim 1 ; and a charging device comprising a charging coil arranged to induce a current in the induction coil of the induction heating assembly by producing an electromagnetic field.

12 . The vapour generating device charging system according to claim 11 , wherein the charging device is substantially cylindrical.

13 . A method of charging a vapour generating device, the method comprising the steps of:
placing a charging device in proximity to an induction heating assembly of the vapour generating device, the induction heating assembly comprising a rechargeable power source and an induction heating coil; and transferring power from the charging device in the form of an electromagnetic field to the induction heating coil of the heating assembly to supply charge to the rechargeable power source.

14 . The method according to claim 13 , wherein a portion of the charging device is at least partially inserted in a volume of the induction heating assembly.

15 . The method according to claim 13 , wherein a portion of the induction heating assembly is at least partially inserted in a volume of the charging device.

Assignees

• Jt Int Sa

Inventors

• Gill Mark

Classifications

• H05B6/108 Primary

  for heating a fluid · CPC title

• A24F40/57

  Temperature control · CPC title

• H02J50/10

  using inductive coupling · CPC title

• H02J7/02

  for charging batteries from AC mains by converters · CPC title

• A24F40/90

  Arrangements or methods specially adapted for charging batteries thereof · CPC title