Method for manufacturing a heating device

The use of convexly curved spring sections in the profile tube for heating devices addresses the challenge of heat conduction and assembly breakage, providing secure clamping and efficient heat transfer.

DE102011017108B4Undetermined Publication Date: 2026-06-25BORGWARNER LUDWIGSBURG GMBH
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Patent Information

Application Number
DE102011017108P0
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2011-04-14
Publication Date
2026-06-25
Estimated Expiration
2031-04-14

AI Technical Summary

Technical Problem

Existing heating devices face challenges in ensuring consistent and efficient heat conduction between the heating element and the profile tube, with existing methods potentially causing ceramic PTC heating element breakage during assembly.

Method used

The use of a profile tube with convexly curved spring sections that are elastically expanded to accommodate the heating element, then contract to clamp it securely, ensuring uniform load and improved heat coupling.

Benefits of technology

This method prevents ceramic PTC heating element breakage and ensures consistent, uniform heat coupling across a production series, enhancing mechanical stability and heat transfer efficiency.

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Abstract

Method for manufacturing an electric heating device, wherein at least one heating element (2) is inserted into a profile tube (1) made of metal, characterized in that the profile tube (1) has convexly curved spring sections (1a) on two opposite sides, and the at least one heating element (2) is inserted into the profile tube (1) while the profile tube (1) is elastically expanded by pressure on the two convexly curved spring sections (1a).
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Citation Information

Patent Citations

  • profile tube and method for clamping functional elements in such a tube

    DE10360159A1

  • electric water heater

    DE3002358C2

  • Electric heating element for fan heater - has C-clips between longitudinal edges of opposing profile rails

    DE4010620A1

  • electric heating element

    DE7838558U1

  • heater FOR HEATING HEATING OIL

    DE7912211U1