Barcode Reader Battery Latch Assembly With Dual-Point Impact Protection
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Solution Overview
Problem
Existing battery latch mechanisms in barcode-reading devices are vulnerable to external forces, leading to potential failure and dislodgment of batteries during rough handling, causing power interruptions and operational inefficiencies.
Innovation Solution
A dual-locking mechanism with two separate latch points and a sealing member, such as an O-ring, that provides robust protection against impacts and environmental contaminants while ensuring easy access to the battery compartment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single latch mechanism is used to secure the battery compartment, then the device structure remains simple, but the latch mechanism is vulnerable to impact forces and may fail during rough handling
Solution Approach 1:
The latch mechanism is divided into two independent latch points (first latch point with first latch member, second latch point with second latch member) that can engage separately. This segmentation allows each latch point to independently resist impact forces, improving overall reliability without requiring a single complex multi-component system.
Solution Approach 2:
Different latch members are positioned at different locations on the battery compartment cover - the first latch member at a first location and the second latch member at a second location. This spatial distribution of latch points creates multiple localized engagement points that collectively provide robust impact protection while maintaining structural simplicity.
2Reliability
If a complex multi-step locking process is implemented, then protection against ingress and impact is improved, but the ease of operation deteriorates due to cumbersome procedures
Solution Approach 1:
The first latch member and second latch member are integrated into a single battery compartment cover assembly that moves as one unit. This merging of the two latch mechanisms into one operational component allows users to engage both latch points simultaneously through a single closing motion, maintaining security while simplifying operation.
Solution Approach 2:
The battery compartment cover serves multiple functions: it provides structural closure, houses both latch mechanisms, and integrates the sealing member. This multi-functionality reduces the number of separate components needed, making the overall system easier to operate while maintaining robust protection.
3Strength
If excessive force is required to close the latch, then the latch mechanism provides strong securing, but user convenience deteriorates and wear on components increases
Solution Approach 1:
The spring member is pre-loaded to exert a biasing force that automatically pushes the first latch member toward engagement with the first latch point. This preliminary action reduces the effort required by the user to close the latch, as the spring assists the closing motion while still providing strong securing force when engaged.
Solution Approach 2:
The spring member provides a consistent biasing force that changes the force parameters during latch operation. The spring exerts a continuous pushing force on the first latch member, transforming the high static securing force into a dynamic system where the user only needs to overcome a portion of the total force requirement.
4Object-affected harmful factors
If a sealing member is added to prevent contaminant ingress, then protection against environmental factors is improved, but device complexity increases
Solution Approach 1:
The sealing member is nested within the battery compartment cover structure, positioned between the cover and the battery compartment opening. This nesting arrangement integrates the sealing function into the existing structural components without adding external complexity, as the seal works within the established geometric envelope of the latch assembly.
Data Source
AI summary
A battery latch assembly is configured to secure a battery compartment in a device. The battery latch assembly includes a first arm that is configured to be coupled to the device. The battery latch assembly also includes a second arm coupled to the first arm so as to facilitate movement of the second arm relative to the first arm. The battery latch assembly also includes a first fastening element that is configured to releasably engage with a first cooperating member to form a first latch point that secures the first arm in a position where a portion of the first arm is aligned with and covers the battery compartment. The battery latch assembly also includes a second fastening element that is configured to releasably engage with a second cooperating member to establish a second latch point that secures the second arm to the first arm.