Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OVERVOLTAGE PROTECTION MODULE FOR DC CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2013/000361
Kind Code:
A1
Abstract:
Disclosed is an overvoltage protection module for a DC circuit, including a thermal cutoff fuse, a metal oxide varistor, and a gas discharge tube. The thermal cutoff fuse, metal oxide varistor, and gas discharge tube are connected in series successively inside a module; one end of the thermal cutoff fuse is used as a first pin, the connection point between the thermal cutoff fuse and the metal oxide varistor is used as a second pin; the connection point between the metal oxide varistor and the gas discharge tube is used as a third pin; and one end of the gas discharge tube is used as a fourth pin. Combining the thermal cutoff fuse (TCO), metal oxide varistor (MOV), and gas discharge tube (GDT) together and using the method of PCB board soldering can effectively reduce the volume of module occupied. Application in a DC power supply, and especially a 48 V communication DC power supply, effectively and securely protects against overvoltage surges.

Inventors:
CHEN SHI (CN)
SUN YUPEI (CN)
XU YOUSHENG (CN)
XU ZHONGHOU (CN)
Application Number:
CN2012/076953
Publication Date:
January 03, 2013
Filing Date:
June 15, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
XIAMEN SET ELECTRONICS CO LTD (361101, CN)
CHEN SHI (CN)
SUN YUPEI (CN)
XU YOUSHENG (CN)
XU ZHONGHOU (CN)
International Classes:
H02H9/04
Foreign References:
CN202121318U2012-01-18
CN1925072A2007-03-07
US6765777B22004-07-20
US8125308B12012-02-28
CN202042877U2011-11-16
CN201820968U2011-05-04
US6778375B12004-08-17
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD. XIAMEN (5FLabour Force Market Building, No.191 Changqing Road Siming DistrictXiamen, Fujian 2, 361012, CN)
Download PDF:
Claims: