Patent · US Active

Circuit protection device having thermally coupled MOV overvoltage element and PPTC overcurrent element

US7660096B2 · kind B2 · utility

15Cited by
21References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 28, 2006
Grant dateFeb 9, 2010
Priority date
Expiry dateJul 25, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02H9/042
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

In a composite electrical circuit protection device, thermal coupling between a planar PPTC element and a planar MOV element is controlled by insertion of a thermal mass material for regulating heat transfer from the MOV element to the PPTC element, such that a PPTC resistor hot zone forms consistently away from the planar major foil electrode confronting the MOV thereby regulating heat transfer from the MOV to the PPTC resistor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.