Electric heating device and heating or air conditioning facility with such an electrical heating device
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Solution Overview
Problem
Modern vehicles, especially those with efficient engines and electric motors, face challenges in utilizing waste heat for heating due to insufficient heat output, and existing electrical heating devices struggle with compactness and overheating protection for electronic components.
Innovation Solution
An electrical heating device design featuring a PTC register with contact plates and heat-conducting ribs, where the contact plates form extensions that connect to a housing element with recesses, providing a stable and space-saving thermal and electrical connection, and a stepped cross-section for increased stability and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electric heating devices are made compact to reduce installation space, then installation space is reduced, but heat dissipation becomes more difficult and electronic components are prone to overheating
Solution Approach 1:
The heating device is segmented into modular components including PTC elements arranged in a block-like configuration, contact plates with integrated fins, and housing elements with recesses. This segmentation allows for compact arrangement while maintaining heat dissipation pathways through the modular structure.
Solution Approach 2:
Multiple functions are merged into single components: contact plates serve both electrical connection and heat conduction purposes, housing elements provide both structural support and heat dissipation pathways, and fins are integrated directly onto contact plates to combine electrical and thermal functions in a space-efficient manner.
2Stability of the object's composition
If contact plates are securely connected to housing elements for stable thermal and electrical connection, then connection stability is improved, but device complexity increases
Solution Approach 1:
The contact plate integrates both electrical contact function and mechanical connection function into a single component. The extension formed by the contact plate serves simultaneously as an electrical conductor and as a mechanical fastening element that engages with recesses in the housing element, eliminating the need for separate fasteners or connectors.
Solution Approach 2:
The contact plate is designed as a multi-functional component that provides electrical connection, thermal conduction, and mechanical attachment all in one element. This universal design reduces the total number of parts while maintaining stable connections between heating elements and housing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enables a compact, efficient, and stable electrical heating device that effectively utilizes space while ensuring secure connections and improved heat transfer, addressing the need for reduced installation space and enhanced heat management.
Implementation Method 1
The waste heat produced by the vehicle's engine is typically used to heat the interior of a motor vehicle... Therefore, it has proven effective to activate electric heating devices or auxiliary electric heaters
Implementation Method 2
PTC elements arranged in a block-like manner to form a PTC register, with contact plates and heat-conducting fins
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to an electrical heating device (1), in particular for a heating or air conditioning system, in particular for a motor vehicle, with at least one housing element (10, 12) and with a number of PTC Elements (3) with contact plates (4) and heat-conducting ribs (17), with one PTC element (3) being arranged between two contact plates (4), with at least one of the contact plates (4) being connected to at least one contact plate end (6, 8) forms an extension (7, 9) and the at least one housing element (10, 12) forms a recess (11, 13), the extension (7, 9) engaging in the at least one recess (11, 13) and/or the at least one recess (11, 13) passes through such that the at least one contact plate (4) and the at least one housing element (10, 12) are positively connected to one another.