(19)
(11) EP 4 489 036 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.04.2025 Bulletin 2025/16

(43) Date of publication A2:
08.01.2025 Bulletin 2025/02

(21) Application number: 24206546.4

(22) Date of filing: 25.08.2018
(51) International Patent Classification (IPC): 
H01C 7/102(2006.01)
 H01C 7/12(2006.01)
(52) Cooperative Patent Classification (CPC):
H01C 7/102; H01C 7/12; H01C 7/123
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 27.10.2017 US 201715795986

(62) Application number of the earlier application in accordance with Art. 76 EPC:
20174839.9 / 3716296
18190872.4 / 3413320

(71) Applicant: RIPD Research and IP Development Ltd.
2012 Nicosia (CY)

(72) Inventors:
  • TAVCAR, Tine
    1291 Skofljica (SI)
  • RUSTJA, Sasa
    1000 Ljubljana (SI)
  • CHOROZOGLOU, Alexis
    66100 Drama (GR)
  • PEPPAS, George
    66133 Drama (GR)
  • XEPAPAS, Fotis
    66132 Drama (GR)
  • POLITIS, Zafiris G.
    14565 St. Stefanos (GR)

(74) Representative: Yeadon IP Limited 
114 Wellington Street
Leeds LS1 1BA
Leeds LS1 1BA (GB)

   


(54) OVERVOLTAGE PROTECTION DEVICE INCLUDING MULTIPLE VARISTOR WAFERS


(57) An overvoltage protection device includes a first electrode member, a second electrode member, and a varistor assembly. The varistor assembly includes: a plurality of varistor wafers each formed of a varistor material; and at least one electrically conductive interconnect member connecting the varistor wafers in electrical parallel between the first and second electrode members. The varistor wafers are axially stacked between the first and second electrodes.







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Search report