Back to results
US 11,678,408 B2Granted
PTC heating element and electrical heating device with such a PTC heating element
AssigneeEberspächer catem GmbH & Co. KG
InventorsKurt Walz, Patrick Kachelhoffer, Sascha Barner
Life of this patent
Estimating the term…
Abstract
A PTC heating element comprises at least one PTC element and two conductor paths which are assigned to different polarities and which are electrically conductively connected to the PTC element and are provided with connection elements for the electrical connection of the PTC element. The PTC heating element has improved heat discharge due to the provision of an electromagnetic shielding which is formed from a fluid-permeable metal structure and which surrounds the PTC element and the conductor paths.
Claims21
A PTC heating element comprising:
- at least one PTC element and two conductor paths which are assigned to different polarities, which are electrically conductively connected to the PTC element, and which are provided with connection elements for the electrical connection of the PTC element;
- and
- an electromagnetic shielding which is formed from a fluid-permeable metal structure and which surrounds the PTC element and the conductor paths.
An electrical heating device comprising:
- a heater housing which forms a circulation chamber and a connection chamber which is sealed in a fluid-tight manner with respect to said circulation chamber,
- at least one PTC heating element comprising at least one PTC element and two conductor paths which are assigned to different polarities, which are electrically conductively connected to the PTC element and are provided with connection elements for the electrical connection of the PTC element, and
- an electromagnetic shielding which is formed from a fluid-permeable metal structure and which surrounds the PTC element and the conductor paths, wherein a partition separating the circulation chamber from the connection chamber is penetrated by the connection elements of the at least one PTC heating element and by a shielding terminal lug, which is electrically connected to the shielding.
Dependencies are inferred from the claim text.