| 摘要 |
The invention relates to a heating device for diesel fuel comprising at least one PTC heating element ( 8 ), at least two contact sheets ( 7 ) each comprising a front face ( 10 ) by means of which they contact the PTC heating element ( 8 ) electrically, wherein the PTC heating element ( 8 ) is provided between the front faces ( 10 ) of the two contact sheets ( 7 ); a plastic housing ( 2 ) enclosing an interior space through which the diesel fuel to be heated can flow and in which the PTC heating element ( 8 ) and the contact sheets ( 7 ) are provided. According to the invention, it is provided that the front faces ( 10 ) of the contact sheets ( 7 ) project, on at least one longitudinal side, over the PTC heating element ( 8 ) so that a gap is provided between the opposing front faces ( 10 ) of the contact sheets ( 7 ), that the housing ( 2 ) comprises positioning elements ( 11 ) projecting into its interior space, engaging into the gap and, as a stop, securing the PTC heating element ( 8 ) against lateral displacement, and that the contact sheets ( 7 ) each have at least one leg ( 12 ) bent away from the front face ( 10 ) and being pressed into the housing ( 2 ) with prestress so that the front faces ( 10 ) of the contact sheets ( 7 ) are pressed against the PTC heating element ( 8 ) by spring forces exerted by the legs ( 12 ).
|
