Electronic Power Module Heat Conduction Path for EV Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In electronic power modules for hybrid and electric vehicles, the high voltage region of the circuit board is not effectively cooled, leading to thermal loading issues due to limited thermal connection with the cooling body.
Innovation Solution
Incorporating a heat-conducting element between the contacting element and the cooling body to create a continuous heat-conducting connection, allowing for efficient heat dissipation from the circuit board to the cooling body, even in regions separated by grooves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a heat-conducting element is added between the contacting element and the cooling body, then heat dissipation from the circuit board is improved, but the device complexity increases
Solution Approach 1:
The contacting element serves multiple functions: it provides electrical connection between the circuit board and electronic unit, and with the added heat-conducting element, it also becomes part of the thermal conduction path. This multi-functionality reduces the need for separate components and minimizes overall system complexity while improving heat dissipation.
Solution Approach 2:
The thermal management system uses composite construction by combining different materials with complementary properties: the heat-conducting element is made from materials with high thermal conductivity to efficiently transfer heat, while maintaining electrical isolation where needed. This composite approach optimizes thermal performance without requiring complete system redesign.
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 solution enables effective cooling of the circuit board, particularly in high voltage regions, by establishing a stable and efficient heat-conducting path, reducing thermal loading and ensuring proper heat management.
Implementation Method 1
at least one heat-conducting element (50) is arranged between the contacting element (30) and the cooling body (40) in such a manner that a heat-conducting connection is produced between the contacting element (30) and the cooling body (40)
Data Source
AI summary
The invention relates to an electronic module (1), in particular an electronic power module for hybrid vehicles or electric vehicles, comprising: a printed circuit board (10) with at least one contact point (11); an electronic unit (20), in particular a power electronic unit, with at least one connection point (21), the connection point (21) of the electronic unit (20) being electrically connected to the contact point (11) of the printed circuit board (10) by means of at least one electrically conductive contact element (30); and a heat sink (40) with a top (41), the electronic unit (20) bearing indirectly and/or directly against the top (41) of the heat sink (40). According to the invention, at least one heat-conducting element (50) is arranged between the contact element (30) and the heat sink (40) in such a manner that a thermally conductive connection is produced between the contact element (30) and the heat sink (40).