Grooved Wiring Module Cover Structure for Vibration Noise Suppression
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Solution Overview
Problem
The vibration of wiring members within grooves in vehicle components can cause collisions with groove walls, leading to audible noise that may disturb passengers.
Innovation Solution
A wiring module design featuring a base member with grooves and a cover member that includes extension parts fused to the base member's edges, with a protruding part inside the groove to reduce the movement space and collision likelihood, thereby minimizing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the groove is made larger to accommodate the wiring member, then the wiring member can be housed, but the wiring member moves inside the groove due to vibration and collides with the groove wall causing sound
Solution Approach 1:
The groove is segmented into multiple regions by adding partition walls that extend from the bottom surface toward the opening. This divides the single large groove into multiple smaller compartments, each housing a wiring member. The partition walls reduce the movement space for each wiring member while maintaining adequate accommodation, thereby preventing vibration-induced collisions with groove walls that generate sound.
Solution Approach 2:
The solution introduces a new spatial dimension by adding partition walls that extend vertically from the bottom surface of the groove toward the opening. This creates a three-dimensional compartmentalization structure within the groove, effectively reducing the horizontal movement space for wiring members without requiring a smaller overall groove volume.
2Object-generated harmful factors
If the groove is made smaller to restrict wiring member movement, then collision sound is reduced, but the wiring member cannot be properly housed
Solution Approach 1:
Instead of uniformly reducing the groove volume, the groove is segmented into multiple smaller compartments using partition walls. Each compartment is sized appropriately to house a wiring member while restricting its movement space. This segmentation allows the overall groove to maintain sufficient volume for housing wiring members while each segment prevents excessive movement that causes sound.
Solution Approach 2:
The partition walls are strategically positioned to create local restrictions on wiring member movement. The groove structure has different properties in different regions: the partition walls create localized confinement zones where wiring members are restricted, while the overall groove maintains adequate volume. This local quality approach allows simultaneous achievement of proper housing and sound suppression.
3Object-generated harmful factors
If partition walls are added to divide the groove, then wiring member movement is restricted and sound is suppressed, but the base member structure becomes more complex
Solution Approach 1:
The partition walls are merged with the base member as an integrated structure rather than separate components. The partition walls extend continuously from the bottom surface of the groove toward the opening, forming a unified base member structure. This merging approach simplifies manufacturing and assembly while achieving the sound suppression function, reducing overall device complexity despite the added structural features.
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 design effectively suppresses large sound occurrences by reducing the movement space and collision energy between the wiring members and groove surfaces, even under vibration conditions.
Implementation Method 1
the first extension part is fused to a first side edge portion of the base member located on the one lateral side of the groove, the second extension part is fused to a second side edge portion of the base member located on the another lateral side of the groove
Data Source
AI summary
A wiring module includes a base member provided with a groove, a wiring member housed in the groove, and a cover member covering an opening part of the groove to suppress the wiring member coming out of the groove. The cover member includes a cover body covering the opening part of the groove, a first extension part extending from the cover body to one lateral side of the groove, and a second extension part extending from the cover body to another lateral side of the groove. The wiring member is located close to one lateral side inside the groove. A protruding part entering inside the groove is provided to the cover body on a side of another lateral side of the groove.