EP 0507465 A2 19921007 - A resistor capable of acting as a circuit breaker.
Title (en)
A resistor capable of acting as a circuit breaker.
Title (de)
Widerstand, der imstande ist, als Überlastschalter zu agieren.
Title (fr)
Résistance capable d'agiter comme un disjoncteur.
Publication
Application
Priority
US 67960391 A 19910402
Abstract (en)
An apparatus and method by which a flat film-type resistor (10) is intentionally caused to thermal-shock fracture (Fig. 1) in response to a predetermined high-voltage overload condition. The resistor includes flat film-type resistor coatings (28,29) connected to traces (16,18,52). A stressed spring wire (71,72) is mounted on such film-type resistor and connected in circuit with it. A predetermined solder (76) and temperature gradient are employed to hold the spring wire in bent condition until the solder (76) melts, whereupon the spring (71,72) flexes and the circuit breaks. Heatsink portions (43-46) are provided in the circuit board for such resistor and receive pins (33-40) thereof. <IMAGE>
IPC 1-7
IPC 8 full level
H01C 1/14 (2006.01); H01C 7/12 (2006.01); H01C 7/13 (2006.01); H01C 13/00 (2006.01); H01C 13/02 (2006.01); H01H 85/02 (2006.01); H01H 85/08 (2006.01); H01H 85/00 (2006.01); H01H 85/046 (2006.01); H01H 85/048 (2006.01); H01H 85/36 (2006.01)
CPC (source: EP)
H01C 7/12 (2013.01); H01C 7/13 (2013.01); H01H 85/0073 (2013.01); H01H 85/046 (2013.01); H01H 85/048 (2013.01); H01H 85/36 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0507465 A2 19921007; EP 0507465 A3 19930203; EP 0507465 B1 19981202; AT E174154 T1 19981215; DE 69227719 D1 19990114; DE 69227719 T2 19990422; EP 0789381 A1 19970813; ES 2124242 T3 19990201; JP H05101913 A 19930423; JP H0821489 B2 19960304
DOCDB simple family (application)
EP 92302250 A 19920316; AT 92302250 T 19920316; DE 69227719 T 19920316; EP 97104766 A 19920316; ES 92302250 T 19920316; JP 8078992 A 19920402