PTC Heating Device and Method of Manufacturing the Same
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United States of America Patent
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Issued Date -
Apr 11, 2024
app pub date -
Oct 4, 2023
filing date -
Oct 5, 2022
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Abstract
A PTC heating device includes a frame and a heating cell accommodated in the frame. The heating cell includes at least one PTC element made of a ceramic material and contact elements to be assigned different polarity. The PTC element has contact surfaces formed by a metallization. The contact elements are each electrically contacted with one of the contact surfaces. An insulating cured compound is arranged between the outer circumference of the heating cell and the inner circumference of the frame and fixes the heating cell in the frame. An edge, formed by the ceramic material of the PTC element, between the compound and the contact surface. Also disclosed is method of forming PTC heating device according in which the PTC element is fixed to the frame by the electrically insulating compound after the compound is cured.
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