Electrical Device Case With Through Hole For Bus Bar Connection
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Solution Overview
Problem
Existing electrical devices face challenges in efficiently connecting electrical parts housed in separate case portions, which hinders space efficiency and productivity in vehicle-mounted systems.
Innovation Solution
The electrical device employs a through hole in the case for easy connection of bus bars and reactors, allowing for efficient electrical connection between power modules and reactors after coupling the upper and lower case portions, using a bolt system accessible through the hole for secure and efficient assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electrical parts are housed in separate case portions to improve space efficiency, then space utilization is improved, but electrical connection between parts becomes difficult
Solution Approach 1:
The case is divided into multiple case portions (first case portion and second case portion) that can be coupled together, allowing electrical parts to be housed in separate compartments while maintaining overall case integrity. This segmentation enables better space utilization while the coupling mechanism ensures electrical connections can be established between parts in different portions.
Solution Approach 2:
A conductor is introduced as an intermediary element that bridges the electrical connection between electrical parts housed in separate case portions. The conductor passes through or connects the case portions, enabling electrical continuity without requiring direct access to internal components during assembly.
2Ease of operation
If a through hole is added to the case for connection purposes, then electrical connection ease is improved, but case structure complexity increases
Solution Approach 1:
The through hole in the case serves multiple functions: it allows passage of conductors for electrical connections, provides access for bolt insertion to couple case portions, and maintains structural integrity of the case. This multi-functionality reduces the need for separate dedicated features, thereby minimizing overall case structure complexity while improving connection ease.
Data Source
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AI summary
An electrical device is provided. The electrical device includes a case (30), a first electrical part (8a), a second electrical part (7), and a connecting portion (73). The case includes a first case (32) and a second case (33) coupled to the first case (32). The first electrical part (8a) is fixed to the first case (32). The second electrical part (7) is fixed to the second case (33). The connecting portion (73) is configured to connect a first conductor extending from the first electrical part (8a) and a second conductor extending from the second electrical part (7) each other. Either one of the first case (32) and the second case (33) includes a through hole (331). The connecting portion (73) is disposed so as to be entirely visible from the through hole (331) as viewed from an outside of the case (30).