Paul Duffield,Ellen Piercy,Larry Tyson,Steve Walsh
申请号：
US14420130
公开号：
US09877359B2
申请日:
2013.08.08
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An assembly for evaporating a volatile fluid includes a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz； the refill comprises a fluid reservoir containing the volatile fluid, a wick and at least one magnetic susceptor arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/meter (HC) to substantially 1500 ampere/meter (HC). Refills, devices and methods of operation are also described.
