(19)
(11) EP 0 584 800 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.01.1995 Bulletin 1995/03

(43) Date of publication A2:
02.03.1994 Bulletin 1994/09

(21) Application number: 93113532.1

(22) Date of filing: 24.08.1993
(51) International Patent Classification (IPC)5: H01C 7/02, H01C 1/14, H01C 1/022, H05B 3/00
(84) Designated Contracting States:
ES IT PT

(30) Priority: 27.08.1992 JP 60401/92 U

(71) Applicant: MURATA MANUFACTURING CO., LTD.
Nagaokakyo-shi Kyoto-fu 226 (JP)

(72) Inventors:
  • Wakabayashi, Asami
    Nagaokakyo-shi, Kyoto-fu (JP)
  • Mochida, Norihiro
    Nagaokakyo-shi, Kyoto-fu (JP)

(74) Representative: TER MEER - MÜLLER - STEINMEISTER & PARTNER 
Mauerkircherstrasse 45
81679 München
81679 München (DE)


(56) References cited: : 
   
       


    (54) Positive temperature coefficient thermistor device


    (57) A positive temperature coefficient thermistor device constructed by containing in containing recess portions 8 in a case 2 a plurality of PTC elements 3 and an elastic terminal for lifting the PTC elements 3 from the bottom surfaces of the containing recess portions 8 and urging the PTC elements 3 toward a surface 2a of the case 2 to which the containing recess portions 8 open, and disposing between the surface 2a of the case 2 to which the containing recess portions 8 open and a cover member 6 a plane terminal 5 for interposing the PTC elements 3 between the plane terminal 5 and the elastic terminal 4, the plane terminal 5a comprising a plurality of plane terminal portions 5 whose number corresponds to the number of PTC elements 3 and connecting pieces 5b for connecting the plane terminal portions 5a, heat being applied from the side of the cover member 6.






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