US 11,942,294 B2
High-safety lamp tube and method for increasing protection range of thermal fuse
Fuxing Lu, Fujian (CN); and Rongtu Liu, Fujian (CN)
Assigned to Xiamen PVTECH Co., Ltd., Fujian (CN)
Filed by Xiamen PVTECH Co., Ltd., Fujian (CN)
Filed on Jan. 9, 2022, as Appl. No. 17/571,520.
Claims priority of application No. 202111435720.7 (CN), filed on Nov. 29, 2021.
Prior Publication US 2023/0170170 A1, Jun. 1, 2023
Int. Cl. H01H 37/76 (2006.01); F21V 25/10 (2006.01); H01H 37/04 (2006.01); H01H 37/34 (2006.01); H05K 1/02 (2006.01); H05K 3/28 (2006.01)
CPC H01H 37/761 (2013.01) [H05K 1/0201 (2013.01); H05K 2201/10181 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A high-safety lamp tube, comprising:
a main body, and;
a circuit board, disposed in the main body, and comprising a circuit loop, a first heat generating element, a second heat generating element, wherein the second heat generating element is electrically connected to the circuit loop;
a thermal fuse, wherein the first heat generating element is electrically connected to the circuit loop via the thermal fuse, and the thermal fuse is adhered to the first heat generating element via an adhesive layer; and
a heat conducting material, disposed on the circuit board, wherein the heat conducting material covers the thermal fuse, the first heat generating element and the second heat generating element.