Vehicle Heating Unit Heat Dissipation Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric heating units for vehicles face challenges in efficiently dissipating heat to a heat transfer fluid while maintaining mechanical robustness and simplicity of production.
Innovation Solution
The electric heating unit features a heat-conducting body with a base body and heat-emitting bodies connected in a materially bonded manner, providing a large heat absorption surface parallel to the heating layer and a continuous or separate heat dissipation surface, which allows for efficient heat transfer to a heat transfer fluid, such as air or liquid, without the need for additional load-bearing elements, and includes an insulating layer to prevent electrical connections between heating resistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a corrugated sheet-like heat conducting structure is used, then heat dissipation efficiency is improved, but mechanical robustness deteriorates
Solution Approach 1:
The heat conducting body is divided into a base body and multiple heat-emitting bodies (fins) that extend from it. This segmentation allows the base body to provide mechanical strength while the fins provide large surface area for heat dissipation, resolving the contradiction between structural robustness and heat transfer efficiency.
Solution Approach 2:
The heat-emitting bodies extend in a direction perpendicular to the heating layer, adding a third dimension to the heat dissipation structure. This vertical extension provides additional heat dissipation surface area without compromising the planar structural integrity provided by the base body.
2Stability of the object's composition
If additional load-bearing elements are added between heat-conducting body and heating layer, then mechanical stability is improved, but device complexity worsens
Solution Approach 1:
The base body of the heat conducting body is merged with the heating layer to form a unitary structure that provides both thermal conduction and mechanical support. This integration eliminates the need for separate load-bearing elements, reducing device complexity while maintaining structural stability.
Solution Approach 2:
The base body serves multiple functions simultaneously: it acts as a substrate for the heating layer, provides mechanical support, and conducts heat from the heating layer to the heat-emitting bodies. This multi-functionality eliminates the need for additional dedicated support structures.
3Productivity
If heat absorption surface area is increased, then heat transfer efficiency is improved, but manufacturing complexity worsens
Solution Approach 1:
The base body is designed with a pre-formed heat absorption surface that is substantially planar and positioned adjacent to the heating layer. This preliminary configuration of the heat absorption surface simplifies subsequent assembly and manufacturing processes while ensuring efficient thermal contact.
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
This design enables rapid heat dissipation, mechanical robustness, and simplified production, ensuring effective heat transfer and minimizing thermal stresses, while allowing for easy mechanical connection of multiple units in a stack or row.
Implementation Method 1
The heating layer (10) has at least one heating resistor (14)
Implementation Method 2
the heat-conducting body (22) has a heat absorption surface (32) for absorbing heat from the heating layer (10) and a heat dissipation surface (34) for dissipating heat to a heat transfer fluid
Implementation Method 3
the heat transfer fluid can be air or a liquid, for example. The heating device can be designed in such a way that, during operation, the heat transfer fluid flows along the heat dissipation surface of the heat-conducting body
Data Source
Figure 1
Figure 2~3
Figure 4A~4D
AI summary
The invention relates to an electrical heating unit (20) for a heating device (40) for a vehicle, having a heating layer (10) and a heat conducting body (22), wherein the heating layer (10) comprises at least one heating resistor (14) and the heat conducting body (22) comprises a heat absorbing face (32) for absorbing heat from the heating layer (10) and a heat releasing face (34) for releasing heat to a heat carrier fluid. According to the invention, the heat conducting body (22) comprises a main body (24) and at least two heat releasing bodies (26), wherein the main body (24) and the heat releasing body (26) are bonded to one another or are integral, wherein the heat absorbing face (32) is a surface of the main body (24) which faces the heating layer (10) and extends parallel to the heating layer, and the heat releasing face (34) is a surface of the heat releasing body (26). The invention further relates to a heating device and to a method for producing a heating unit.