Electrical heating device
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United States of America Patent
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Jun 27, 2017
Grant Date -
Nov 17, 2016
app pub date -
May 9, 2016
filing date -
May 11, 2015
priority date (Note) -
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Abstract
Disclosed is an electrical heating device for heating the interior of a vehicle, comprising a plurality of PTC heating rods each comprising ceramic PTC heating resistors, heat sinks for transferring heat from the PTC heating rods to an air flow, and a holder holding the PTC heating rods. The PTC heating rods are connected in series to an NTC heating rod comprising at least one NTC resistor, wherein the NTC heating rod is held by the holder.
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