Detachable Terminal for Electric Distribution Box
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Solution Overview
Problem
Existing electric distribution boxes face challenges in being easily connected to wire harnesses due to predetermined installation directions, leading to issues with mounting when the wire harness direction varies, often requiring extra length or different specifications.
Innovation Solution
An electric distribution box with a detachable external input/output terminal portion that includes a second bus bar for threaded connection, allowing connection from arbitrary directions without bending the wire harness or preparing a different box specification, featuring a case body with a bracket portion for mounting the terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electric distribution box uses a fixed connection structure for wire harnesses, then the internal circuit structure is simple, but the mounting flexibility varies when wire harness installation direction changes
Solution Approach 1:
The connection structure is divided into two independent parts: the first bus bar fixed inside the case body and the second bus bar with external connection portions that can be detached and repositioned. This segmentation allows the external connection structure to be adapted to different wire harness directions without changing the internal circuit layout.
Solution Approach 2:
The external connection portions of the second bus bar are designed to be movable and repositionable along the bus bar body. This dynamic capability enables the connection structure to adapt to different wire harness installation directions by adjusting the position of external connection portions, rather than being fixed in a single orientation.
2Ease of operation
If the wire harness is formed with extra length and bent to connect to the electric distribution box, then connection is possible, but the wire harness structure becomes complex and installation is difficult
Solution Approach 1:
The second bus bar with multiple external connection portions serves as an intermediary element between the internal circuit and the wire harness. Instead of bending the wire harness to reach a fixed connection point, the external connection portions can be positioned to meet the wire harness directly, eliminating the need for extra length and bending.
3Adaptability or versatility
If different specifications of electric distribution box are prepared for different wire harness directions, then mounting flexibility is improved, but the quantity of parts increases
Solution Approach 1:
A single electric distribution box design incorporates multiple external connection portions on the second bus bar that can serve different directional requirements. This multi-functional design eliminates the need to maintain separate distribution box specifications for different wire harness directions, reducing part variety while maintaining adaptability.
Data Source
AI summary
An electric distribution box includes a circuit which is operable to perform the flowing, interruption and detection of electric current, and the circuit having distribution parts and a first bus bar which connects the distribution parts, a case body in which the circuit is contained, and an external input/output terminal portion which is detachably mounted on an outer surface of the case body, and is adapted to be connected to the first bus bar.