Cooling Module Fastening Layout for Fill-Induced Vibration
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Solution Overview
Problem
Conventional fixing devices for cooling modules in motor vehicles do not account for the mass variation and resulting position change when the module is filled with liquid, leading to vibrational stresses and premature wear due to the deformation of these devices.
Innovation Solution
A motor vehicle arrangement featuring a primary fixing device with a mobile stud that moves between two stable positions, exerting an effort from top to bottom on the module, and a secondary fixing device, such as rubber, to support the module's weight, ensuring the module remains stable and secure regardless of its filled or empty state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fixing devices are used to mount the cooling module, then the module can be fixed to the support element, but the fixing devices deform when the module is filled with liquid, creating clearance and vibrational stresses
Solution Approach 1:
The fixing device incorporates a movable pad that can dynamically adjust its position between two stable positions. The pad travels a distance K along the vertical direction to accommodate the mass variation of the module when filled with liquid, maintaining continuous contact and eliminating clearance while absorbing vibrational stresses.
Solution Approach 2:
The fixing device changes its physical state by allowing the pad to move between two stable positions. This parameter change in pad position compensates for the mass variation (parameter change) of the module when filled with liquid, maintaining proper contact and preventing deformation issues.
2Adaptability or versatility
If the cooling module is filled with liquid after assembly, then the module can store and circulate fluid, but the mass increase causes position variation and clearance in the fixing devices
Solution Approach 1:
The fixing device is pre-configured with a movable pad that has sufficient travel capacity K to accommodate the future mass increase when the module is filled with liquid. This preliminary design ensures that the fixing device can handle the position variation Δz without creating clearance, maintaining positioning precision throughout the module's operational lifecycle.
3Volume of moving object
If the module dimensions are increased to meet regulatory standards, then the module can provide adequate cooling capacity, but the fixing devices experience greater deformation and clearance
Solution Approach 1:
The movable pad with travel capacity K provides dynamic adjustment capability that scales with increased module dimensions. This allows the fixing device to accommodate greater mass and position variations resulting from larger module volumes required by regulatory standards, maintaining reliability despite increased deformation demands.
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 arrangement maintains a consistent position and reduces wear on components by compensating for the mass variation of the module when filled, preventing vibrational stresses and extending the lifespan of the module and its components.
Implementation Method 1
said pad being arranged and configured to exert a downward force on the module along a direction when it is moved to the second stable position
Implementation Method 2
The secondary fixing device may in particular be made of rubber
Data Source
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AI summary
Disclosed is an arrangement (1) for a motor vehicle comprising a liquid storage and/or circulation module (2), a support element (3) of the module (2) and at least one primary fastening device (4) comprising a stud (6) mounted to move relative to the support element (3) in order to be moved so as to exert a downward force on the module (2) in a direction (100), a stroke of the stud (6) in said direction (100) being greater than or equal to a variation in position in direction (100) of the module (2) relative to the support element (3) between a configuration in which the module (2) is empty and a configuration in which the module (2) is filled with liquid.