Luggage Cover Panel Mount With Vertical Vibration Decoupling
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Solution Overview
Problem
Existing systems for rotatably mounting a covering panel for a motor vehicle luggage compartment do not allow the panel to vibrate vertically, which is necessary for effective sound transmission, while also failing to decouple vibrations from the rest of the vehicle.
Innovation Solution
The system includes a cavity in the trim or panel with a decoupling means made of elastically compressible material between the receiver and the upper and lower walls, and an air gap between the receiver and the middle wall, allowing vertical vibration while preventing horizontal vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the panel is rigidly mounted to the trim, then the mounting is stable and secure, but the panel cannot vibrate vertically for effective sound transmission
Solution Approach 1:
The patent introduces a decoupling means as an intermediary element between the receiver and the trim cavity walls. This decoupling means comprises an elastically compressible material that mediates between the rigid receiver structure and the flexible panel, allowing vertical vibration transmission while maintaining horizontal mounting stability. The intermediary layer enables the panel to vibrate freely in the vertical direction for effective sound transmission from the electrodynamic transducer, while still providing secure mounting through the receiver-finger connection.
2Device complexity
If the receiver is directly connected to the trim cavity walls, then the mounting structure is simple and rigid, but vibrations are transmitted to the seat backrests and trims
Solution Approach 1:
The decoupling means serves as a vibration-isolating intermediary between the receiver and the trim cavity walls. This elastically compressible material absorbs and dampens vibration energy, preventing its transmission to the seat backrests and trims. The decoupling means is positioned within the cavity, surrounding the receiver, and provides both mechanical support and vibration isolation, thus adding minimal complexity while effectively reducing harmful vibration transmission.
Solution Approach 2:
The patent utilizes the elastic properties of the decoupling means material to change the mechanical parameters of the mounting system. The elastically compressible material provides a compliant connection that allows controlled deformation under vibration loads, transforming the rigid connection into a semi-flexible one that isolates vibrations. This parameter change in material compliance enables vibration decoupling while maintaining structural integrity.
3Object-generated harmful factors
If the panel is decoupled from the trim, then vibrations are isolated from the vehicle structure, but the mounting ergonomics and secure attachment are compromised
Solution Approach 1:
The decoupling means acts as a mediator that provides both vibration isolation and secure attachment. The elastically compressible material maintains continuous contact with the receiver and cavity walls, ensuring the panel remains firmly attached during normal operation. This intermediary element distributes the mounting forces across a larger area, improving ease of installation while maintaining secure attachment. The elastic properties allow for self-adjustment during mounting, enhancing ergonomics by accommodating minor misalignments.
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
This configuration enables the panel to vibrate vertically, enhancing sound transmission, while maintaining ergonomic mounting and decoupling vibrations from the vehicle's seat backrests and trims.
Implementation Method 1
a decoupling means made of elastically compressible material extending between said receiver and said upper and lower walls
Implementation Method 2
an air gap is provided between said receiver and said middle wall... the presence of the air gap prevents the transmission of vibrations in a horizontal plane
Data Source
AI summary
System for rotatably mounting a covering panel (2) for a motor vehicle luggage compartment on a trim (3), said system comprising two devices (4) for rotatably slotting said panel, each of said devices comprising: a finger (5) and a receiver (6) for slotting said finger, said finger having a recess (7) provided with a first opening (8), the system further comprising a cavity (9), said receiver being mounted in said cavity, said first opening leading into a second opening (10) provided in said cavity and having an upper wall (11), a bottom wall (12) and a middle wall (13), a decoupling means (14) made of elastically compressible material extending between said receiver and said upper and lower walls, an air gap (15) being provided between said receiver and said middle wall.