US 12,256,782 B2
Heating device and manufacturing method therefor, and heat-not-burn smoking device
Ping Chen, Guangdong (CN)
Assigned to Shenzhen Huachengda Precision Industry Co. Ltd., Shenzhen (CN)
Appl. No. 17/764,974
Filed by Shenzhen Huachengda Precision Industry Co. Ltd., Guangdong (CN)
PCT Filed May 19, 2020, PCT No. PCT/CN2020/091097
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2021/232250, PCT Pub. Date Nov. 25, 2021.
Prior Publication US 2022/0346451 A1, Nov. 3, 2022
Int. Cl. A24F 40/46 (2020.01); A24F 40/20 (2020.01); A24F 40/70 (2020.01); H05B 3/22 (2006.01)
CPC A24F 40/46 (2020.01) [A24F 40/20 (2020.01); A24F 40/70 (2020.01); H05B 3/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heating device for a heat-not-burn smoking device, comprising a first heating assembly; wherein the first heating assembly comprises a first housing configured to be in contact with a tobacco, a first heating element disposed inside the first housing and configured to generate heat when electrified, and a first insulator disposed between the first heating element and the first housing; and
the first heating element generates heat when electrified, the heat is conducted to the first housing through the first insulator, to heat but not burn the tobacco to generate smoke;
wherein the first heating assembly further includes a first high temperature resistant non-stick coating disposed on a surface, configured for contacting with the tobacco, of the first housing; and
a thickness of the first high temperature resistant non-stick coating is 0.5 μm-500 μm.