PCB Mounting Frame with Resilient Latching Hooks
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Solution Overview
Problem
Existing solutions fail to accommodate printed circuit boards of different geometries within a single housing pattern and provide a resilient mounting mechanism that is cost-effective and adaptable.
Innovation Solution
A holding frame with support shoulders and latching hooks, made of plastic or fiber-reinforced plastic, that can be individually manufactured to fit various circuit board sizes, featuring rails, struts, and resilient support elements for secure and easy connection to a housing, allowing for different circuit board geometries to be accommodated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed housing pattern is used, then manufacturing cost is reduced, but adaptability to different circuit board geometries deteriorates
Solution Approach 1:
The mounting system is divided into two independent segments: a standardized housing with fixed opening positions, and interchangeable holding frames adapted to different circuit board geometries. This segmentation allows the housing to remain simple and cost-effective while the holding frames provide the necessary adaptability for various board sizes and shapes.
Solution Approach 2:
The holding frame serves as an intermediary component between the standardized housing and the diverse circuit boards. It translates the fixed housing pattern into adaptable mounting configurations by providing geometry-specific frame designs that can be snapped into the universal housing openings.
2Ease of operation
If resilient mounting is implemented, then ease of assembly is improved, but device complexity increases
Solution Approach 1:
The resilient support elements are designed to automatically engage with the housing openings through elastic deformation and snap-action mounting. The resilient nature of these elements enables self-aligning and self-latching behavior, eliminating the need for complex adjustment mechanisms or precision alignment procedures during assembly.
3Reliability
If individual holding frames are manufactured for different circuit boards, then circuit board retention is improved, but manufacturing complexity increases
Solution Approach 1:
Despite manufacturing different holding frame geometries, the system achieves universality through standardized connection interfaces. All holding frames share identical mounting features that correspond to the fixed housing opening pattern, enabling a finite set of frame designs to serve multiple circuit board configurations while maintaining consistent assembly procedures.
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
Enables the use of the same housing pattern for diverse printed circuit boards, providing a cost-effective and secure mounting solution that can be easily adapted to different sizes without requiring changes in the housing mold, ensuring high contact pressure and efficient board retention.
Implementation Method 1
The support element is designed as a resilient latching element, with the support element being designed to snap into the opening in a resilient manner
Data Source
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AI summary
The invention relates to a holding frame for a printed circuit board. The holding frame has a support structure and at least two support shoulders. The support shoulders are each connected to the support structure and are designed and arranged to support a surface area of the printed circuit board in the region of a circuit board edge. The holding frame has a locking hook, in particular a bayonet hook, wherein the locking hook is designed and arranged to engage a circuit board edge and to hold the circuit board positively between the at least one support shoulder and the locking hook.