PCB Mounting Clip With Flexing Slot for Waterproof Cases
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Solution Overview
Problem
Existing methods for mounting component boards to internal case surfaces, such as PCB boards, increase production costs and restrict flexibility by requiring dedicated slots, which can compromise waterproof sealing and limit the number and type of boards that can be accommodated.
Innovation Solution
A mounting device with spaced legs and a resilient cross member featuring slots that reduce in width upon flexure, allowing frictional engagement with the case surfaces without the need for internal slots, enabling secure retention and easy disengagement of component boards while maintaining a smooth, waterproof surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated slots are provided in the internal surface of the case, then component boards can be mounted, but production costs increase and waterproof sealing is compromised
Solution Approach 1:
The mounting function is extracted from the case structure itself. Instead of providing dedicated slots in the case, a separate mounting device with slots is used. This separates the mounting capability from the case, allowing the case to maintain its smooth waterproof surface while still enabling component board mounting through the removable mounting device.
Solution Approach 2:
The mounting device is segmented into a base member and a cross member that can flex relative to each other. This segmentation allows the cross member to be inserted and removed independently, providing mounting capability without permanently modifying the case structure, thereby avoiding the need for dedicated case slots.
2Reliability
If the cross member flexes to engage with internal surfaces, then secure retention is achieved, but slot width reduces
Solution Approach 1:
The slot width parameter is designed to change dynamically with the flexing state of the cross member. When the cross member is inserted and flexes to engage with the case internal surfaces, the slot width reduces to provide secure frictional retention. This parameter change allows the slot to accommodate items during insertion, then provide secure retention once flexed, resolving the contradiction between accessibility and retention security.
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 provides a cost-effective and flexible mounting system that securely holds component boards without compromising the waterproof seal, allowing for customizable board capacity and easy installation, while ensuring secure retention and easy removal.
Implementation Method 1
the cross member formed of resilient material including at least one slot for receiving an item, wherein movement of the first and second free ends of the respective first and second legs towards each other causes flexure of the cross member and a reduction in the slot width
Implementation Method 2
the first protruding portions come into contact with the internal surfaces of the case when the mounting device is received in the case and the base member flexes to frictionally engage with the internal surfaces of the case
Data Source
AI summary
A mounting device for mounting at least one item relative to internal surfaces of a case is disclosed. The mounting device has spaced first and second legs, each of the first and second legs having a free end, and a cross member extending between the first and second legs, the cross member formed of resilient material and including at least one slot for receiving an item, and the slot having a slot width. Movement of the first and second free ends of the respective first and second legs towards each other causes flexure of the cross member and a reduction in the slot width.