Overlapping Block Electrical Connection Box for Vehicle Space Optimization
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Solution Overview
Problem
Existing electrical connection boxes on vehicles have a space-inefficient configuration due to wide empty spaces, making it difficult to accommodate all necessary parts without increasing the height dimension of the frame.
Innovation Solution
The electrical connection box design includes a first block placed on top of the frame with a second block positioned underneath it, overlapping with the first block, allowing electrical wires to be drawn horizontally from the second block, and the blocks are joined to each other for electrical connection, eliminating the need for additional routing space and maintaining the frame's height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If another block is placed in the space S formed under the first block, then space utilization is improved, but the height dimension of the frame must be increased to accommodate all parts
Solution Approach 1:
The patent transitions from a single-layer horizontal arrangement to a multi-layer vertical arrangement by placing blocks at different height positions. The first block is positioned at a first height and the second block at a second height lower than the first, utilizing the vertical dimension to increase space utilization without increasing the overall frame height.
Solution Approach 2:
The second block is positioned within the vertical projection area of the first block, creating a nested-like configuration where blocks are arranged in overlapping horizontal positions at different heights. This allows efficient packing of multiple blocks within the same horizontal footprint.
2Volume of moving object
If blocks are arranged to overlap vertically, then space efficiency is improved, but electrical wire routing becomes more complex
Solution Approach 1:
The electrical connection components are segmented into multiple independent blocks positioned at different heights. Each block contains specific electrical components (relays, fuses, bus bars) and their associated wire connections, allowing independent routing and management of electrical connections for each block without interference.
Solution Approach 2:
The patent uses bus bars as intermediary electrical connection elements that extend from the blocks. The bus bars provide standardized electrical connection points that simplify wire routing between blocks, acting as mediators that reduce the complexity of direct wire connections between multiple blocks.
Data Source
AI summary
An electrical connection box includes a frame, and a plurality of blocks each provided with a relay and the like and installed in the frame. The block is placed in an upper side in the frame. At least a portion of the block is placed under the block in a manner overlapping with the block. The relay provided to the block is connected to an electrical wire. The electrical wire is drawn horizontally from the block.