Semiconductor Module Housing Snap-Fit for Screwless Assembly
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Solution Overview
Problem
Conventional power semiconductor module arrangements require additional fixation steps and components, such as screws, to secure the housing in place during assembly, increasing costs and process time.
Innovation Solution
A housing with integrally formed or attached cantilever elements that form a snap-fit connection with the base plate, allowing secure temporary fixation until a glued joint is formed, eliminating the need for additional components and steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional fixation components such as screws are used to secure the housing to the base plate, then the housing can be firmly fixed in position during assembly, but the overall cost increases and the assembly process time increases
Solution Approach 1:
The housing and base plate are merged into a single integrated component, eliminating the need for separate fixation elements. The housing body directly incorporates the mounting function, allowing it to be firmly attached to the base plate without additional screws or clips, thus reducing component count while maintaining fixation stability.
Solution Approach 2:
The housing serves multiple functions simultaneously: it provides structural enclosure for the semiconductor components and acts as its own fixation mechanism. The housing's design integrates both protective enclosure and mounting attachment functions, eliminating the need for dedicated fixation components.
2Reliability
If additional fixation components such as screws are used to secure the housing to the base plate, then the housing can be firmly fixed in position during assembly, but the assembly process time increases
Solution Approach 1:
The housing is segmented into functional zones including the enclosure body and integrated mounting features. This segmentation allows the housing to be assembled as a single unit with built-in fixation capability, eliminating the need for sequential assembly of separate fixation components and thereby improving assembly speed.
Solution Approach 2:
The fixation function is preliminarily built into the housing design itself, rather than being added during assembly. The housing is pre-configured with integrated mounting features that enable immediate attachment to the base plate, eliminating the need for additional fixation steps and accelerating the assembly process.
3Reliability
If conventional gluing method is used to attach the housing to the base plate, then a stable connection is formed, but the housing requires additional fixation components to maintain position during glue curing
Solution Approach 1:
The fixation and enclosure functions are merged into a single integrated housing structure. The housing body itself provides the fixation mechanism through integrated mounting features, eliminating the need for separate fixation components and simplifying the assembly operation while maintaining connection stability during glue curing.
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
Facilitates cost-effective and efficient assembly of semiconductor modules by reducing the number of assembly steps and components, while ensuring temporary stability during the curing process.
Implementation Method 1
two or more cantilever elements integrally formed with or attached to the sidewalls, wherein each of the two or more cantilever elements includes at least one cantilever arm having a free end, and a protrusion formed at the free end of each of the at least one cantilever arm
Data Source
AI summary
A housing for a semiconductor module includes sidewalls and two or more cantilever elements integrally formed with or attached to the sidewalls. Each of the two or more cantilever elements includes at least one cantilever arm having a free end, and a protrusion formed at the free end of each of the at least one cantilever arm. Each of the two or more cantilever elements is configured to form a snap-fit connection with a corresponding counterpart formed in a base plate of the semiconductor module.