Braille Display Modular Housing Impact Resistance
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Solution Overview
Problem
Conventional braille displays are fragile and prone to malfunction upon impact, lacking durability and ease of maintenance, especially in portable designs where shocks and bumps are common, leading to misalignment of tactile pins and difficulty in servicing individual components.
Innovation Solution
A modular braille display with a snap lock feature for securing the main housing, using resilient end caps to absorb impacts and a modular construction allowing easy access and replacement of internal components, minimizing damage to electromechanical elements and maintaining precise pin alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional braille displays use traditional housing construction, then the device can be manufactured with standard methods, but the display becomes fragile and prone to malfunction upon impact
Solution Approach 1:
The housing is divided into modular components including a main housing, end caps, and a front panel that can be separately manufactured and assembled. This segmentation allows each component to be optimized for impact resistance while maintaining ease of manufacturing through standardized assembly processes using snap locks and mounting features.
Solution Approach 2:
The housing employs composite construction with the main housing formed from impact-resistant materials and end caps made from resilient materials that absorb shocks. This composite approach enhances overall durability and impact resistance while using materials that can be manufactured with conventional techniques.
2Ease of repair
If the braille display uses a unified housing structure, then manufacturing is simpler, but servicing and replacement of individual components becomes difficult
Solution Approach 1:
The housing is segmented into distinct modular components (main housing, end caps, front panel) that can be independently accessed and serviced. The front panel can be removed to access braille cells, and end caps can be replaced individually, enabling easy repair of specific components without replacing the entire device.
Solution Approach 2:
The housing incorporates dynamic assembly features including snap locks for reversible connection and resilient end caps that can be independently replaced. This dynamic design allows components to be easily assembled and disassembled for servicing while maintaining structural integrity during normal operation.
3Reliability
If the braille display uses rigid housing materials, then structural stability is improved, but shock absorption and impact resistance deteriorate
Solution Approach 1:
Different regions of the housing have different material properties optimized for their specific functions. The main housing uses rigid impact-resistant materials for structural stability, while the end caps use resilient materials for shock absorption. This local differentiation of material quality allows both structural stability and shock absorption to be achieved simultaneously.
Solution Approach 2:
The housing system uses composite construction combining rigid main housing components with resilient end cap materials. This composite approach allows the rigid portions to provide structural stability while the resilient portions absorb shocks and impacts, achieving both requirements through material composition.
4Ease of repair
If the braille display is designed as a single integrated unit, then manufacturing is easier, but replacement of individual braille cells requires wholesale replacement of the entire device
Solution Approach 1:
The braille display is segmented into independently replaceable braille cells mounted within the modular housing. Each cell can be accessed by removing the front panel and individually replaced without affecting other cells or the entire device, enabling cost-effective repair and maintenance.
Solution Approach 2:
The modular construction employs dynamic connection methods allowing braille cells to be independently installed and removed. The snap lock mechanisms and mounting features enable cells to be easily replaced individually while maintaining their precise positioning and alignment within the housing.
Data Source
AI summary
Disclosed is a braille display that is impact resistant and that employs a modular construction. The impact resistance is achieved, in part, by molded and resilient end caps. Each end cap includes a centrally positioned slit that functions in absorbing lateral impacts to the display. The impact resistance is further achieved by an over molded housing that is positioned about an associated USB connector. The modularity of the display is achieved by way of a subassembly that is releasably secured within the interior of a main housing. The subassembly, in turn, includes a series of cell compartments that are arranged in groups. Each group of cell compartments is controlled by an individual shift register. This allows a grouping cell compartments to be removed and replaced as needed without disturbing the remaining cell components.