(19)
(11) EP 0 579 170 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.02.1994 Bulletin 1994/05

(43) Date of publication A2:
19.01.1994 Bulletin 1994/03

(21) Application number: 93111199.1

(22) Date of filing: 13.07.1993
(51) International Patent Classification (IPC)5: H05B 1/02, H05B 3/82, H01H 37/76
(84) Designated Contracting States:
DE ES FR GB

(30) Priority: 14.07.1992 IT TO920599

(71) Applicant: CEBI S.p.A.
I-10090 Cascine Vica Rivoli (Torino) (IT)

(72) Inventor:
  • Bianco, Carlo
    I-10098 Rivoli (Torino) (IT)

(74) Representative: Modiano, Guido, Dr.-Ing. et al
Modiano & Associati S.r.l. Via Meravigli, 16
I-20123 Milano
I-20123 Milano (IT)


(56) References cited: : 
   
       


    (54) Armored electric resistor for washing machines and the like, including heat-sensitive switching means for protection against overheating


    (57) A resistor (10) comprising a tubular sheath (11) for protecting the resistor and heat-sensitive switching means for protection against overheating. These means include normally-closed fixed and movable contacts (22a, 24a, 26a, 26b) and pusher elements (27) for the quick opening of the contacts. The pushers are controlled by respective pre-loaded elastic means (33) normally kept under tension by traction elements (31) which are rigidly coupled by stop elements (34) made of fusible material which are associated with the sheath (11). When a preset sheath temperature is exceeded, the stop elements (34) melt and release the pre-loaded elastic means (33) opening the contacts.






    Search report