Housing Component Flatness Zone for Thermal Management
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Solution Overview
Problem
Current housing components for electronic components, such as transmission controls, face difficulties in effectively dissipating heat due to uneven surfaces, particularly after heat treatment, which hinders efficient heat removal through feedthroughs.
Innovation Solution
A housing component with a flatness zone having a deviation of ≤0.1 mm per 10 mm length, achieved through a stamping process that creates a recess without altering the plate thickness, allowing for efficient heat dissipation and integration with a cooling device, and featuring feedthroughs with a compression seal using insulating materials like glass or glass ceramic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat treatment is performed during sealing of feedthroughs, then sealing reliability is improved, but surface flatness deteriorates causing difficulty in heat removal
Solution Approach 1:
The housing component is divided into a base body and a separately attachable flatness element. The flatness element is attached to the base body in the flatness zone to compensate for surface irregularities caused by heat treatment during feedthrough sealing, thereby maintaining both sealing reliability and surface flatness for effective heat removal.
Solution Approach 2:
The flatness element acts as an intermediary component between the base body and the cooling device. It compensates for surface irregularities on the base body caused by heat treatment, providing a flat mounting surface that enables effective thermal contact while preserving the sealing integrity of the feedthroughs.
2Manufacturing precision
If machining is performed to achieve desired flatness, then surface flatness is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of machining the entire housing component to achieve flatness, the solution segments the flatness requirement into a separate flatness element. This element is attached to the base body, eliminating the need for complex machining operations on the main housing while still achieving the desired surface flatness for heat dissipation.
Solution Approach 2:
The flatness element is pre-formed with the required flat surface geometry before attachment to the base body. This preliminary preparation of the flatness feature avoids the need for subsequent machining operations on the assembled housing, simplifying the manufacturing process while ensuring the required surface quality.
3Ease of manufacture
If clamping is applied during machining, then machining stability is improved, but housing component warping occurs
Solution Approach 1:
The flatness requirement is segmented into a separate attachable element rather than being achieved through machining the base body. This eliminates the need for clamping during machining of the housing component, preventing warping while still providing the necessary flat surface for thermal management.
Solution Approach 2:
The flatness element is pre-formed with the required geometric precision before attachment to the base body. This preliminary preparation avoids subsequent machining operations that would require clamping and risk warping the housing component, thereby maintaining shape stability while achieving the desired flatness.
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 solution enables reliable and efficient heat dissipation from electronic components connected to the housing component, avoiding the need for costly machining and minimizing deformation risks, while maintaining high production quality and cost-effectiveness.
Implementation Method 1
heat dissipation of the electronic components which are connected with the flatness zone can be removed very reliably and efficiently from the housing component
Implementation Method 2
the housing component is reinforced through the recess
Data Source
AI summary
A housing component, for example a housing which accommodates electronics, such as a transmission control has a plurality of feedthroughs and a flatness zone. The housing component has a recess area in the region of the flatness zone. The housing component is reinforced through the recess and the flatness zone, which is disposed in the region of the recess, has a deviation from flatness of ≦0.1 millimeter (mm), for example in the range of 0.005 mm to 0.02 mm per 10 mm length.