Vehicle Electrical Connection Box Fuse Density
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Solution Overview
Problem
The increasing number of electronic apparatuses in vehicles requires a greater number of fuses, but conventional electrical connection boxes face space limitations, making it challenging to accommodate more fuses without increasing the box's size.
Innovation Solution
The electrical connection box design incorporates a rectangular open port with two rows of insertion holes: one with long sides adjacent and another with short sides, allowing for a higher density of fuse insertion without expanding the box's dimensions, along with guiding portions and a substrate arrangement for efficient assembly and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of fuses is increased to accommodate more electronic apparatuses, then the fuse capacity is improved, but the box size increases
Solution Approach 1:
The patent transitions from a single-row linear arrangement of insertion holes to a multi-row matrix arrangement. By organizing insertion holes into multiple rows and columns within the same box footprint, the design effectively utilizes two-dimensional space, thereby increasing fuse capacity without proportionally increasing box volume.
Solution Approach 2:
The patent divides the insertion holes into multiple distinct rows (first insertion hole row, second insertion hole row, etc.) rather than having a single continuous row. This segmentation allows for more efficient space utilization and enables the box to accommodate more fuses by distributing them across multiple organized rows within the available space.
2Adaptability or versatility
If multiple types of fuse fitting portions are provided in one box body, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent employs multiple insertion hole rows with different orientations (some with long sides adjacent, others with short sides adjacent) that can accommodate different types of fuses. This universal design allows a single box body to serve multiple functions by supporting various fuse configurations without requiring separate specialized boxes for each fuse type.
Data Source
AI summary
Provided is an electrical connection box in which a greater number of fuses can be inserted while suppressing an increase in size. An electrical connection box for a vehicle includes: an insertion housing that has a rectangular open port on one side and in which a plurality of rectangular insertion holes into which fuses are to be respectively inserted are provided facing the open port; a first insertion hole row in which a plurality of the insertion holes are provided side by side in a lengthwise direction of the open port, with long sides of the insertion holes adjacent to each other; and a second insertion hole row in which a plurality of the insertion holes are provided side by side in the lengthwise direction of the open port, with short sides of the insertion holes adjacent to each other.