Patent ID: 11964539
Assignee: EBERSPäCHER CATEM GMBH & CO. KG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 9:
10. An electric heating device comprising:
a control housing surrounding a connection chamber;
a heater housing surrounding a heating chamber, wherein the control housing and the heater housing are separated from one another by a partition wall, from which at least one PTC heating assembly projects into the heater housing as a heating fin, wherein the PTC heating assembly has at least one PTC element and contact lugs which are electrically conductively connected to the PTC element for energizing the PTC element with different polarities and which are electrically connected in the control housing, wherein a heat sink is exposed in the heating chamber, which heat sink is connected in a heat-conducting manner to a cooling surface provided in the connection chamber, wherein a printed circuit board, equipped with at least one power switch, is provided in the connection chamber, the power switch is applied in a heat-conducting manner against a cooling surface under a pretensioning force via an elastic pretensioning element, and wherein the pretensioning element is an elongated piece of a soft-elastic plastic part extruded with at least one through-opening extending in a direction substantially transverse to a transmission direction of the pretensioning force.