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
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- BORGWARNER LUDWIGSBURG GMBH
- Filing Date
- 2011-04-14
- Publication Date
- 2026-06-25
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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Smart Images
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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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