H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 3/48 (2006.01) B29C 45/27 (2006.01)
Patent
CA 2696862
The present invention relates to an electric heater (22) to heat substantially cylindrical objects (12), in particular hot runner nozzles (10) of hot runner systems, essentially being fitted with at least one cylindrical support and with at least one heating conductor track (28) deposited on the support (12). To reduce premature failure of the heater, the invention stipulates that each heating conductor track (28) runs substantially in the axial direction (A) of said support (12), the heating conductor tracks (28) being connected to each other by conductor tracks (30) of lower electrical resistance and each conductor track (30) running essentially in the tangential direction (T) of the support (12).
La présente invention concerne un radiateur électrique (22), qui est destiné au chauffage d'objets sensiblement cylindriques (12), en particulier des buses de canaux chauds (10) de systèmes à canaux chauds, et qui comporte au moins un support sensiblement cylindrique, et au moins un tracé conducteur chauffant (28) monté sur le support (12). Pour réduire les phénomènes provoquant une défaillance prématurée du radiateur, l'invention propose de disposer chacun des tracés conducteurs chauffants (28) essentiellement dans le sens de l'axe (A) du support (12). Les tracés conducteurs chauffants (28) sont reliés électriquement entre eux par des tracés conducteurs (30) de faible résistance électrique, orientés tangentiellement (T) par rapport au support (12).
Guenther Herbert
Sommer Siegrid
Zimmermann Frederic
Fetherstonhaugh & Co.
Guenther Heisskanaltechnik Gmbh
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