The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2021
Filed:
Mar. 19, 2018
Applicant:
Polytronics Technology Corp., Hsinchu, TW;
Inventors:
Assignee:
POLYTRONICS TECHNOLOGY CORP., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 5/00 (2006.01); H01H 85/46 (2006.01); H01H 37/76 (2006.01); H05K 1/02 (2006.01); H01H 85/046 (2006.01);
U.S. Cl.
CPC ...
H01H 85/463 (2013.01); H01H 37/761 (2013.01); H05K 1/0263 (2013.01); H01H 85/046 (2013.01); H01H 2085/466 (2013.01);
Abstract
A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.