Title:
VARISTOR FITTED WITH DEGRADATION ALARM
Document Type and Number:
WIPO Patent Application WO/2014/147971
Kind Code:
A1
Abstract:
The present invention is provided with a display element, a first temperature fuse, a varistor element, and a second resistance element. The display element is connected to a first resistance element and a first resistance element in series. The first temperature fuse is connected to the first resistance element and the display element in parallel. The varistor element is connected to the first temperature fuse in parallel. The second resistance element is disposed on a link between the first temperature fuse and the varistor element. The first temperature fuse has a cut temperature, the cut temperature being set so that the first temperature fuse is cut at a temperature that is equal to or higher than a heat generation temperature when a current flows, the current being greater than the maximum rated current of the varistor element by a certain value. The resistance value of the second resistance element is greater than the resistance value of the first resistance element.
Inventors:
SATOU MASAAKI
Application Number:
PCT/JP2014/001007
Publication Date:
September 25, 2014
Filing Date:
February 26, 2014
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H01C7/10; H01H37/76; H01T1/12; H01T4/02; H01T4/08; H01T15/00
Foreign References:
| JP2009218508A | 2009-09-24 | |||
| JP2011083074A | 2011-04-21 |
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (JP)
Yoshiaki Tokuda (JP)
Yoshiaki Tokuda (JP)
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