Single PCB Barcode Scanner Design for Structural Support
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Solution Overview
Problem
The complexity and cost associated with designing and manufacturing handheld barcode scanners are increased due to the need for multiple printed circuit boards (PCBs) and complex interconnections, which also pose challenges in providing structural support for internal components, especially when angled relative to the discharge axis during housing manufacturing.
Innovation Solution
A single PCB design is implemented for ergonomic handheld scanners, where the PCB is oriented perpendicular to the imaging axis using a frame, reducing the number of components and interconnects, and allowing for a larger PCB surface area, which simplifies manufacturing and assembly while providing additional protection for imaging optics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple PCBs and complex interconnections are used to implement scanning functionality, then the scanner can accommodate various components and connectors, but the design complexity and manufacturing costs increase
Solution Approach 1:
The patent consolidates multiple PCBs into a single PCB structure that integrates power connectors, data connectors, and imaging optics mounting. This merging reduces the number of separate components while maintaining the ability to accommodate various functional elements through careful layout and integration on the unified PCB board.
2Adaptability or versatility
If multiple PCBs and connectors are used to implement scanning functionality, then the scanner can support various functions, but the manufacturing and assembly costs increase
Solution Approach 1:
The patent combines multiple functional components onto a single PCB, eliminating the need for separate PCBs, connectors, and interconnections. This reduction in part count directly lowers per-unit material costs and assembly labor costs while preserving all necessary scanning functions through integrated design.
3Ease of operation
If internal components are angled relative to the discharge axis during housing manufacturing, then ergonomic handheld design is achieved, but providing structural support becomes difficult
Solution Approach 1:
The patent introduces a frame structure as an intermediary element between the housing and the PCB. This frame is specifically designed to provide the necessary structural support and mounting points for the PCB and imaging optics, allowing the components to be positioned at ergonomic angles while maintaining adequate mechanical support through the frame's support members.
Data Source
AI summary
A barcode scanning apparatus that includes a single printed circuit board (PCB) is disclosed. The apparatus includes a housing having a head portion and a handle portion. The handle portion extends generally along a handle axis. The single PCB extends along a PCB plane and is positioned at least partially within the housing. The apparatus includes an image sensor having a plurality of photo-sensitive elements that form a substantially flat surface. The single PCB may have a first portion and a second portion, where the image sensor is positioned on the first portion and is further positioned to capture light entering the housing through a window of the head portion. The apparatus includes a frame positioned at least partially within the housing, where the frame includes an oblique angle formed between a front portion and a rear portion, where the PCB is secured by or to the frame's rear portion.