Wire Harness Protector with Latching Electromagnetic Absorber
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Solution Overview
Problem
Conventional wire harnesses experience positional displacement of electromagnetic wave absorption members, leading to potential damage and noise generation due to direct contact with wires and other components.
Innovation Solution
A wire harness design featuring a ring-shaped magnetic substance core and case with latching protrusions and recesses, where the covering member interposed between the wire and the electromagnetic wave absorption member, and a protector housing the absorption member to prevent displacement and direct contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electromagnetic wave absorption member is mounted on the wire using a tape member, then the electromagnetic wave absorption member can be fixed to the wire, but the electromagnetic wave absorption member is positionally displaced relative to the wire before fixation
Solution Approach 1:
The cover is preliminarily positioned on the wire and the electromagnetic wave absorption member is preliminarily positioned on the cover before final fixation. The latching portions are designed to engage in advance, creating a preliminary fixed state that prevents positional displacement during installation and operation, before the tape member provides final fixation.
Solution Approach 2:
The cover acts as an intermediary component between the wire and the electromagnetic wave absorption member. It provides a stable mounting surface and structural support that prevents the absorption member from directly contacting the wire, thereby maintaining positional stability and preventing displacement during the fixation process and operation.
2Device complexity
If the electromagnetic wave absorption member is directly mounted on the wire, then the structure is simplified, but the absorption member may directly contact the wire causing damage and noise generation
Solution Approach 1:
The cover serves as an intermediary protective component between the wire and the electromagnetic wave absorption member. It prevents direct contact that would cause wire damage and noise generation, while distributing mechanical stresses and providing electrical insulation. The latching portions on the cover provide secure mounting without requiring complex additional structures.
Solution Approach 2:
The mounting structure is segmented into distinct functional components: the wire, the cover with latching portions, and the electromagnetic wave absorption member. This segmentation allows each component to perform its specific function optimally - the wire for electrical conduction, the cover for protection and positioning, and the absorption member for electromagnetic wave absorption - while simplifying the overall assembly process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses positional displacement of the electromagnetic wave absorption member, prevents damage to the wire, and reduces noise generation by interposing the covering member and protector, thereby enhancing the structural integrity and operational reliability of the wire harness.
Implementation Method 1
an electromagnetic wave absorption member that absorbs the electromagnetic waves (electromagnetic noise) emitted from the wire
Data Source
AI summary
A wire harness including: a wire; a cover that covers an outer circumference of a portion of the wire in a length direction thereof; an electromagnetic wave absorber mounted on an outer circumference of the cover; and a fixing member that fixes one end of the cover in a length direction thereof to the wire, wherein: the electromagnetic wave absorber includes a ring-shaped magnetic substance core, and a ring-shaped case in which the magnetic substance core is housed, the cover includes a first latch formed on an outer circumferential surface of the cover, and the case includes a second latch that latches to the first latch in the length direction of the cover.