Inductive Charging Heat Exchanger With Variable Flow Passages
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heat exchangers for cooling inductive charging devices in motor vehicles are either inefficient or too bulky, failing to provide optimal cooling while maintaining compactness.
Innovation Solution
A compact heat exchanger design featuring two separate metallic bases connected to form a planar housing with alternating channel passages of different cross-sectional areas, combined with a flow conducting assembly to enhance heat transfer and fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional heat exchanger designs are used, then cooling function is provided, but the device becomes bulky and loses compactness
Solution Approach 1:
The heat exchanger is divided into multiple channel passages with different cross-sectional areas along the flow path. This segmentation allows different regions to serve different functions: narrow passages for high heat transfer and wide passages for low pressure loss, achieving both compactness and cooling efficiency
Solution Approach 2:
Different sections of the heat exchanger have different local qualities in terms of flow cross-section. The channel passages transition from narrow to wide cross-sections along the flow path, optimizing heat transfer in certain regions while reducing pressure loss in others, thereby maintaining compact overall dimensions
2Temperature
If heat transfer efficiency is increased, then cooling performance improves, but pressure loss increases
Solution Approach 1:
The flow channel is segmented into multiple passages with varying cross-sectional areas. Narrow passages provide high heat transfer coefficients while wide passages reduce flow resistance, collectively balancing heat transfer efficiency and pressure loss
Solution Approach 2:
The flow velocity dynamically changes along the flow path due to the varying cross-sectional areas of channel passages. This dynamic flow pattern allows the system to optimize between heat transfer (requiring high velocity) and pressure loss (reduced by lower velocity) at different locations
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 heat exchanger achieves efficient cooling of inductive charging devices by optimizing heat transfer through varying flow speeds and minimizing pressure loss, while maintaining a compact form factor suitable for motor vehicle integration.
Implementation Method 1
a flow channel through which a flow path for a heat exchanger fluid extends
Implementation Method 2
two separate metallic bases which are connected, in particular soldered, to one another
Data Source
AI summary
A heat exchanger for an inductive charging device of a motor vehicle may include two separate bases and a flow conducting assembly. The two bases may be connected permanently to one another to form a one-piece heat exchanger housing and a flow channel through which a flow path for a heat exchanger fluid extends. The flow channel may have, along the flow path, a plurality of channel passages through which the heat exchanger fluid is flowable in succession. The plurality of channel passages may each have a free flow cross-section oriented transversely to the flow path. The flow cross-section of a plurality of first channel passages may be flatter than the flow cross-section of a plurality of second channel passages. The flow conducting assembly may be inserted completely into the flow channel. The two bases may be composed of a metallic material.