Electric heating device

An electric heating device comprising:

• a power section including a frame forming a heating chamber;
• an electric control device comprising a control housing;
• at least one PTC heating device provided in the heating chamber, the PTC heating device including at least one PTC element and conductor elements for energizing the PTC element with different polarities, wherein
• the control housing forms a chamber which is separated from the frame by a partition wall, wherein
• a heat sink projects from the partition wall toward the power section, wherein
• the electric control device has a printed circuit board and at least one power switch which generates heat and which is connected, in a heat-conducting manner, to a surface of the heat sink, wherein
• an electrically insulating layer and a spring element are provided between the power switch and the heat sink, wherein
• the spring element is configure configured to hold the power switch and heat sink in position under a pretensioning force, and wherein
• a wall projecting from the partition wall is configured to limit the movability of the electric insulating layer in a direction transverse to a direction of action of the pretensioning force imposed by the spring element.

An electric heating device comprising:

• a power section including a frame forming a heating chamber;
• an electric control device comprising a control housing;
• at least one PTC heating device provided in the heating chamber, the PTC heating device including at least one PTC element and conductor elements for energizing the PTC element with different polarities, wherein
• the control housing forms a chamber which is separated from the frame by a partition wall, wherein a heat sink projects from the partition wall toward the power section, wherein
• the electric control device has a printed circuit board and at least one power switch which generates heat and which is connected, in a heat-conducting manner, to a surface of the heat sink, wherein
• an electrically insulating layer and a spring element are provided between the power switch and the heat sink, wherein
• the spring element is configured to hold the power switch and heat sink in position under a pretensioning force, and wherein
• a pressure element applies the power switch against the spring element on a side opposite the heat sink.