Wire Branch Structure With Shield Isolation Parts
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Solution Overview
Problem
Conventional wire branch structures face electromagnetic interference issues between adjacent wires at the branch part due to shared shielding, which can lead to noise penetration and malfunction in connections between inverters and motor generators.
Innovation Solution
A wire branch structure with a shield member featuring isolation parts that separate adjacent wires at the branch point, formed by joining opposing parts of the shield member's inner circumference surface, preventing electromagnetic interference without increasing the number of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wires are covered by the same shield member in a lump, then the structure is simple and manufacturing is easy, but electromagnetic interference may occur to adjacent wires at a branch part
Solution Approach 1:
The shield member is divided into multiple independent shielding portions, each covering individual wires or wire groups. This segmentation allows electrical isolation between adjacent wires at branch parts, preventing electromagnetic interference while maintaining manufacturing simplicity through integrated formation.
2Object-affected harmful factors
If isolation parts are added to prevent electromagnetic interference, then electromagnetic interference is prevented, but the number of component parts increases
Solution Approach 1:
Multiple shielding portions that provide isolation between wires are integrated into a single shield member structure. The shield member forms multiple electrically isolated shielding regions in one piece, preventing electromagnetic interference without increasing the number of component parts, as the isolation is achieved through the integrated shield's design rather than separate components.
3Ease of operation
If a single shield member covers all wires, then assembly is simple, but adjacent wires at branch parts are susceptible to electromagnetic interference
Solution Approach 1:
The shield member is designed with segmented shielding portions that are electrically isolated from each other, allowing the single shield to provide both ease of assembly and electromagnetic interference prevention. The segmentation creates electrical barriers between adjacent wires while maintaining the simplicity of installing one integrated shield member.
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A wire branch structure (1) includes a plurality of wires (3) and a shield member (5) which covers the circumference of the wires (3). One end side of each of the wires (3) is inserted in a main line side shell (7). The other end side of each of the wires (3) is branched from the main line side shell (7) and is inserted into branch line side shells (9, 11) respectively. An isolation part (15) is provided in the shield member (5), which isolates the wires (3) adjacent to a branch part (13) in which the other end side of each of the wires (3) is inserted in the branch line side shells (9, 11) respectively and branched.