Electrical Connection Box Lock Structure Assembly Detection
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Solution Overview
Problem
Conventional electrical connection boxes face issues with accurate assembly of assembly members, leading to potential misalignment and foreign matter entry due to lack of effective detection mechanisms for erroneous assembly.
Innovation Solution
The electrical connection box incorporates a lock structure with flexible second outer wall bodies and engagement bodies that lock in a specific direction, allowing detection of half-engaged states to prevent complete assembly and foreign matter entry, featuring a first engagement body on the first assembly member and a second engagement body on the second assembly member, with annular fitting portions for secure fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If assembly members are assembled without a detection mechanism, then the assembly process is simple, but erroneous assembly cannot be detected leading to misalignment and foreign matter entry
Solution Approach 1:
The patent incorporates a detection mechanism that performs preliminary detection of assembly accuracy before the assembly process is completed. The detection protrusion and detection groove are designed to detect misalignment early in the assembly process, allowing corrective action before erroneous assembly is finalized, thus improving reliability without significantly increasing overall complexity.
Solution Approach 2:
The patent introduces a detection mechanism consisting of detection protrusions and detection grooves as intermediaries between the assembly members. These detection elements serve as mediators that provide feedback on assembly accuracy, enabling the system to detect and prevent erroneous assembly while maintaining a relatively simple overall structure.
2Manufacturing precision
If assembly members are assembled with high precision requirements, then assembly accuracy improves, but assembly difficulty and time increase
Solution Approach 1:
The detection mechanism is designed to automatically detect assembly accuracy through the interaction of detection protrusions and detection grooves. This self-detecting system eliminates the need for complex external measurement devices or manual inspection, thereby maintaining high assembly precision requirements while improving assembly efficiency and reducing production time.
3Object-affected harmful factors
If no detection mechanism is provided, then device complexity is low, but foreign matter can enter from spaces between misaligned assembly members
Solution Approach 1:
The detection mechanism performs preliminary detection of potential gaps or misalignment between assembly members before final assembly is completed. By detecting issues early, the system can prevent foreign matter from entering spaces that would otherwise be created by misaligned assembly, thereby protecting against harmful factors without requiring overly complex protective structures.
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
This solution enables accurate detection of erroneous assembly and prevents foreign matter entry by ensuring correct assembly of the first and second divided housings, maintaining the electrical connection box's integrity and functionality.
Implementation Method 1
the second outer wall body has flexibility capable of deflecting in a direction intersecting with an inner wall surface and an outer wall surface of the second outer wall body
Data Source
AI summary
An electrical connection box includes a housing including at least a first and a second divided housings having annular peripheral edge portions of openings formed by outer peripheral walls that are fitted with each other. The first divided housing includes a first assembly member having a first outer wall body in which a cutout portion is formed, a second assembly member embedding the cutout portion and having a second outer wall body forming the outer peripheral wall 11 together with the first outer wall body, and a lock structure holding the first assembly member and the second assembly member in a completely assembled state. A first engagement body of the lock structure is provided on the first assembly member on the inner side relative to the cutout portion, and a second engagement body is provided on the second outer wall body on the inner wall surface side.