Dual-Lock Mechanism for Electronic Component Mounting
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Solution Overview
Problem
Conventional locking structures between a member to be supported and a supporting body often compromise mounting workability due to locking from a single direction, limiting ease of installation and potential for improved securement.
Innovation Solution
A dual-lock mechanism system is implemented, featuring first and second lock mechanisms that guide and secure the member to be supported from both sides, allowing for easier fitting and secure locking from multiple directions, with each lock mechanism acting as a guide when approached from the opposite side, preventing escape through designated openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-direction locking mechanism is used, then the structure is simple, but the mounting workability is poor
Solution Approach 1:
The locking structure is divided into multiple independent lock mechanisms (first lock mechanism and second lock mechanism) positioned at different locations. Each lock mechanism can independently secure the member to the supporting body, allowing the system to achieve reliable mounting from multiple directions while maintaining modular simplicity in each individual component.
Solution Approach 2:
The locking system transitions from single-direction locking to multi-directional locking by adding lock mechanisms at different spatial positions (first and second locks). This dimensional expansion allows the member to be securely fastened from multiple angles, significantly improving mounting workability without requiring complex individual lock components.
2Reliability
If locking from one direction only, then the structure is simple, but the securement reliability is insufficient
Solution Approach 1:
The securing function is segmented into multiple independent lock mechanisms positioned at different locations. Each lock contributes to the overall securement reliability, so that if one lock is subjected to stress or vibration, the other locks continue to maintain the member's secure attachment to the supporting body.
Solution Approach 2:
Different lock mechanisms are positioned at specific locations (first lock at one location, second lock at another location) to provide localized securement where needed. This allows the structure to achieve high overall reliability by distributing security functions across multiple strategic points rather than concentrating complexity in a single location.
3Reliability
If multiple lock mechanisms are added, then the securement is improved, but the device complexity increases
Solution Approach 1:
The locking system is segmented into distinct, independent lock mechanisms that can be implemented using simple, standardized components. Each lock mechanism is self-contained and performs a specific securing function, allowing the system to achieve high reliability through multiple simple elements rather than one complex mechanism.
Solution Approach 2:
The lock mechanisms are designed with universal applicability, where each lock can serve both as a primary securing element and as a guide for the member during mounting. This multi-functionality reduces the need for separate guide components, thereby limiting the increase in overall device complexity while maintaining improved securement reliability.
Data Source
AI summary
A locking structure between a member to be supported and a supporting body includes an electronic component unit as a member to be supported, an electronic component unit housing part of an electrical connection box as a supporting body, a lock mechanism for upper insertion fitting (an engagement claw and a lock arm) that, when the electronic component unit is fitted to the electronic component unit housing part from an upper-side opening, locks the electronic component unit to the electronic component unit housing part to prevent the electronic component unit from escaping toward the upper-side opening, and a lock mechanism for lower insertion fitting (an engagement claw and a lock arm) that, when the electronic component unit is fitted to the electronic component unit housing part from a lower-side opening, locks the electronic component unit to the electronic component unit housing part to prevent from escaping toward the lower-side opening.