Electronic Control Unit Thermal Management with Radiating Component
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Solution Overview
Problem
Existing electronic control units lack effective consideration for the disposition of radiating components, leading to inefficient heat radiation and potential interference between heating elements and the housing.
Innovation Solution
An electronic control unit design that includes a substrate fixed to a housing with heating elements mounted on one surface and a radiating component between these elements and the housing, featuring accommodating recesses, partitioning walls, peripheral walls, and buffer parts to enhance heat radiation efficiency and prevent component movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating elements are mounted directly on the substrate without radiating components, then the structure is simple, but heat radiation efficiency is poor
Solution Approach 1:
A radiating component is introduced as an intermediary between the heating elements and the housing. This radiating component includes a radiating surface that faces the heating elements, enabling efficient heat transfer from the heating elements to the housing while maintaining structural organization.
Solution Approach 2:
The housing includes multiple accommodating recesses that separately accommodate different heating elements. Partitioning walls divide these recesses, creating organized segments. This segmentation allows each heating element to have its own dedicated radiating space, improving heat radiation efficiency while maintaining structural order.
2Area of stationary object
If multiple heating elements are mounted close together, then space utilization is high, but magnetic field interference between elements increases
Solution Approach 1:
Partitioning walls are provided between accommodating recesses to divide and separate heating elements. This segmentation reduces magnetic field interference between adjacent heating elements while maintaining compact space utilization. Each heating element is isolated in its own recess, preventing harmful electromagnetic interactions.
3Reliability
If the radiating component is not contained within the housing, then the structure is simple, but the radiating component may leak or move during vibration
Solution Approach 1:
The housing includes multiple accommodating recesses with partitioning walls that create separate compartments for different radiating components. This segmentation prevents components from moving or leaking during vibration while maintaining an organized structure.
Solution Approach 2:
Buffer parts are provided between the partitioning walls and the radiating components, and between the peripheral wall and the radiating components. These buffer parts provide beforehand cushioning to prevent the radiating components from moving or leaking during vibration, enhancing reliability without requiring complex additional constraints.
4Reliability
If buffer parts are not provided, then the housing structure is simple, but the radiating component may move or leak during vibration
Solution Approach 1:
Buffer parts are strategically positioned between the partitioning walls/peripheral wall and the radiating components to provide beforehand cushioning. This prevents the radiating components from moving or leaking during vibration, enhancing reliability with minimal additional structural complexity.
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 improves heat radiation efficiency by allowing heat to be radiated in multiple directions, reduces magnetic field interference, and prevents radiating component leakage, thereby enhancing the overall performance and reliability of the electronic control unit.
Implementation Method 1
a radiating component (90) provided between the plurality of heating elements (21 to 25) and the housing (50)
Data Source
AI summary
A substrate is fixed to a housing. Heating elements are mounted on a surface of the substrate on the housing-side. A radiating component is provided between the heating elements and the housing. A surface of the housing on the substrate-side includes accommodating recesses, a partitioning wall part, a peripheral wall part, and buffer parts. In each of the accommodating recesses, a corresponding one of the heating elements is accommodated. The partitioning wall part separates the heating elements from each other. The peripheral wall part surrounds the accommodating recesses and the partitioning wall part. Each of the buffer parts is formed between a corresponding one of the accommodating recesses and the peripheral wall part. Each of the buffer parts is formed to be higher than a bottom part of a corresponding one of the accommodating recesses, and to be lower than the peripheral wall part.