Junction Box Wire Mounting Cover Segmentation
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Solution Overview
Problem
The operability of mounting a terminal section of an electric wire in an electrical junction box is compromised when the box is installed at an inclined orientation, causing the terminal section to slip downward due to gravity, especially when the operator cannot hold the wire during positioning.
Innovation Solution
An electrical junction box design featuring an electric-wire mounting section with an accommodation section that can be opened, an electric-wire holding cover to secure the wire, and a main cover that forms an opening area for connection while preventing dislodgment, allowing for improved operability and potential downsizing by reducing the space required for engagement mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrical junction box is installed in an inclined orientation with the terminal section open to the lower side, then the junction box can be mounted in various positions including vehicle bodies, but the terminal section slips downward due to gravity, degrading operability of mounting
Solution Approach 1:
The cover is divided into two functional parts: the electric-wire holding cover that secures the terminal section, and the main cover that provides access. This segmentation allows the holding cover to remain engaged with the terminal section while the main cover can be opened for connection operations, resolving the conflict between secure mounting and ease of operation.
Solution Approach 2:
The electric-wire holding cover acts as an intermediary between the terminal section and the main cover. It engages with the terminal section to prevent dislodgment while allowing the main cover to be opened for connection operations, thus mediating between the need for secure mounting and ease of operation.
2Reliability
If the main cover is designed to fully cover the accommodation section for protection, then protection is improved, but the space required for engagement mechanisms increases, preventing downsizing
Solution Approach 1:
The cover system is segmented into the electric-wire holding cover and the main cover. The holding cover provides engagement with the terminal section, while the main cover provides protection. This segmentation allows the main cover to be smaller since it doesn't need to accommodate the full engagement mechanism space.
Solution Approach 2:
The engagement mechanism is positioned in a specific dimension between the holding cover and main cover, allowing the main cover to be downsized while maintaining protection. The engagement occurs in the gap between the two covers, utilizing spatial arrangement to reduce overall volume.
Data Source
AI summary
Provided is an electrical junction box including a main body casing accommodating a circuit, an electric-wire mounting section is disposed on the outer side of the main body casing, a terminal section of an electric wire is mounted thereto. The electric-wire mounting section includes: an accommodation section that can be opened so as to accommodate the terminal section of the electric wire, wherein a connection section is electrically connected to the terminal section; an electric-wire holding cover that can be opened and closed covers the accommodation section. When closed, the electric-wire holding cover engages the electric wire yet to be connected to the connection section, keeping the electric wire from being dislodged from the accommodation section and forming an opening area for accommodating the connection of the terminal section of the electric wire to the connection section. The main cover is configured to cover the opening area.