Electrical heater and method for manufacturing an electrical heater
AssigneeEichenauer Heizelemente GmbH & Co. KG
InventorsArno Lauth, Frank Kamy, Armin Lang, Jürgen Stritzinger
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Abstract
The invention relates to an electrical heater with a tubular housing and with a heating insert inserted in the housing. The heating insert includes at least one PTC thermistor. Herein, at least one concave indentation is formed in the housing, which is at least punctually in contact with a corresponding concave indentation of the heating insert. Furthermore, the invention relates to a method for manufacturing such an electrical heater.
Claims15
An electrical heater comprising a tubular housing and a heating insert inserted in the housing, the heating insert comprising at least one PTC thermistor, the housing having at least one concave indentation, which is at least punctually in contact with a corresponding concave indentation of the heating insert, the housing being contracted around the heating insert due to forming the indentation into the housing.
A method for manufacturing an electrical heater, the method comprising:
- inserting a heating insert into a tubular housing, the heating insert comprising, at least one PTC thermistor, and
- subsequent to inserting the heating insert into the tubular housing, forming at least one concave indentation into the housing such that the indentation is at least punctually contacted with a corresponding concave indentation of the heating insert, and such that the housing is contracted around the heating insert due to the forming at least one concave indentation.
Dependencies are inferred from the claim text.