Cooling Fan Module Mounting With Elastic Vibration Damping
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Solution Overview
Problem
Existing cooling fan modules for vehicles face challenges in providing a stable, cost-effective, and space-efficient mounting solution that effectively reduces noise transmission caused by oscillations and vibrations between the assembly and the cooler shroud.
Innovation Solution
The proposed cooling fan module incorporates an elastic assembly holder with an internal receptacle that is expanded by an expanding element, creating a radial gap between the assembly holder and the assembly. This design allows for a cost-optimized and space-saving installation while reducing noise transmission by damping oscillations and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional metal mounting components (stiffening elements) are added to provide stable connection, then connection stability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent changes the physical state of the assembly holder from rigid to elastic, allowing it to deform and expand to provide stable connection without additional metal components. The elastic material's ability to undergo reversible deformation enables the holder to adapt to mounting surfaces and maintain stable connection.
Solution Approach 2:
The patent employs elastic material (such as elastomers or rubber compounds) as the assembly holder, representing a composite material approach that combines flexibility with structural integrity. This elastic material provides both the necessary deformation capability for mounting and the structural strength for stable connection, replacing traditional metal stiffening elements.
2Reliability
If the assembly holder is made rigid for stable mounting, then mounting stability is improved, but noise transmission from vibrations increases
Solution Approach 1:
The patent changes the rigidity parameter of the assembly holder by using elastic material with appropriate viscoelastic properties. This allows the holder to maintain structural stability for mounting while simultaneously providing vibration damping through material hysteresis, thereby reducing noise transmission from vibrations.
Solution Approach 2:
The elastic material used in the assembly holder inherently provides vibration damping properties that rigid materials lack. The viscoelastic nature of materials like elastomers allows them to absorb and dissipate vibrational energy, reducing noise transmission while maintaining mounting stability.
3Strength
If traditional rigid mounting components are used, then structural strength is improved, but installation space requirements increase
Solution Approach 1:
The patent changes the mechanical properties of the mounting structure by using elastic material that can undergo significant deformation. This allows the assembly holder to be compressed or expanded during installation, enabling it to fit into tighter spaces while maintaining sufficient mounting strength through elastic recovery and friction.
Solution Approach 2:
The elastic assembly holder functions as a flexible mounting structure that can deform to accommodate limited installation space. The flexibility allows the holder to be installed in compact configurations and then expand or lock into position, providing strong mounting without requiring additional space for rigid fastening components.
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 enables a more stable and quiet operation of the cooling fan module by reducing noise transmission through effective damping of vibrations and oscillations, while also simplifying the assembly process and eliminating the need for additional stiffening elements.
Implementation Method 1
oscillations and vibrations between the assembly and the cooler shroud can be advantageously reduced so that noise transmission can be reduced
Implementation Method 2
the cooler shroud has an expanding element which is designed to expand the internal receptacle of the assembly holder
Data Source
AI summary
The invention is based on a cooling fan module (10) for a vehicle, having a cooler shroud (12) and an assembly module (100) fastened to the cooler shroud (10), having an elastic assembly holder (101) and an assembly (102) accommodated in the assembly holder (101), the assembly holder (101) having an internal receptacle (104) surrounding the assembly (102). It is proposed that the cooler shroud (12) has an expanding element (15, 15a, 15b) which is designed to expand the internal receptacle (104) of the assembly holder (101).