US 11,950,631 B2
High-frequency heating device
Tuanfang Liu, Shenzhen (CN)
Assigned to ASPIRE NORTH AMERICA LLC
Filed by Shenzhen Eigate Technology Co., Ltd., Shenzhen (CN)
Filed on Dec. 8, 2020, as Appl. No. 17/115,782.
Claims priority of application No. 202022389620.2 (CN), filed on Oct. 25, 2020.
Prior Publication US 2022/0125115 A1, Apr. 28, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/465 (2020.01); A24F 1/30 (2006.01); A24F 40/50 (2020.01); H05B 6/06 (2006.01)
CPC A24F 40/465 (2020.01) [A24F 1/30 (2013.01); A24F 40/50 (2020.01); H05B 6/06 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hookah comprising a heating device, a heating cup for accommodating tobacco material, and a smoke filter; the heating device comprising a housing, a thermal insulation cup, a first thermal insulator, a second thermal insulator, and a magnetic induction coil; wherein:
the housing has an L shape in a cross section, and comprises a first arm, and a second arm;
the first arm comprises a first cavity, and the second arm comprises a second cavity;
the magnetic induction coil and the heating cup are disposed in the first cavity;
the thermal insulation cup is sleeved on the heating cup, and is disposed between the magnetic induction coil and the heating cup;
each of the first thermal insulator and the second thermal insulator comprises an annular surface;
the first thermal insulator and the second thermal insulator are disposed on two ends of the thermal insulation cup, respectively;
the heating cup comprises glass and a metal conductor inlaid in the glass; and
the smoke filter is directly connected with the heating cup.