Cab Roof Assembly With Internal Cooling for Stored Electronics
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Solution Overview
Problem
Work vehicles face challenges in designing a roof assembly that provides storage space for electronic components while maintaining operator visibility, cooling heat-generating components, and incorporating a Falling Object Protective Structure (FOPS) without increasing the vehicle's height or compromising safety.
Innovation Solution
A roof assembly with an outer housing featuring air intake and outlet ports, internal airflow channels, and an inner storage compartment that serves as both a cooling system and a FOPS, using isolation mounts to reduce vibrations and accommodate electronic components within a low vertical profile, allowing for independent cooling of heat-generating components and maintaining operator visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the vertical height of the roof is significantly increased to provide storage space for components, then storage capacity is improved, but the vehicle exceeds maximum height requirements and aesthetic appearance deteriorates
Solution Approach 1:
The patent implements nesting by placing the inner storage compartment inside the outer housing, which itself is integrated into the roof assembly. This nested configuration allows storage components to be housed within the existing roof volume without increasing the overall vehicle height, thereby providing storage capacity while maintaining compliance with height requirements.
Solution Approach 2:
The patent transitions from vertical expansion to horizontal utilization of space by configuring the storage compartment to extend laterally within the roof footprint. The inner storage compartment is positioned to utilize the horizontal volume between the outer housing walls, converting the problem from a vertical dimension constraint to a horizontal space utilization solution.
2Volume of stationary object
If the opening or viewing window in the roof is eliminated to accommodate component storage, then storage capacity is improved, but operator upward visibility deteriorates
Solution Approach 1:
The patent applies local quality by creating a differentiated optical property in the roof assembly. The outer housing incorporates a transparent or translucent portion that selectively transmits light to the operator, while the inner storage compartment remains opaque for component housing. This localized transparency ensures operator visibility is maintained in the critical viewing area while storage functionality is preserved in non-critical areas.
3Adaptability or versatility
If heat-generating components are stored in the roof, then component integration is improved, but cooling system complexity increases due to challenges in directing airflow through the roof
Solution Approach 1:
The patent merges the cooling function with the storage structure by integrating airflow channels directly into the walls of the inner storage compartment. The cooling system is combined with the housing structure itself, eliminating the need for separate cooling ducts and reducing overall system complexity while effectively cooling the stored components.
Solution Approach 2:
The airflow channel configuration allows air to naturally flow through the storage compartment and cool components without requiring complex active cooling mechanisms. The design enables the storage structure itself to provide cooling service to the components it houses, reducing the need for additional dedicated cooling system components.
4Reliability
If a Falling Object Protective Structure (FOPS) is incorporated into the roof, then operator safety is improved, but storage space for additional components deteriorates
Solution Approach 1:
The patent merges the FOPS function with the outer housing structure. The outer housing is configured to serve dual purposes: providing structural protection as a FOPS for operator safety and creating the containment structure for the inner storage compartment. This integration eliminates the need for separate FOPS components that would otherwise occupy storage space.
Solution Approach 2:
The outer housing is designed with multi-functionality, simultaneously serving as the protective FOPS structure, the containment housing for storage, and the structural framework for the entire roof assembly. This universal design maximizes the utilization of structural elements to fulfill multiple requirements without compromising any single function.
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 addresses the need for storage, cooling, and safety by providing a compact, aerated, and vibration-reduced environment for electronic components, ensuring efficient operation and safety without exceeding height limits or impeding visibility.
Implementation Method 1
at least one airflow channel extending between the at least one air intake port and the at least one air outlet port for directing an airflow through an interior of the outer housing... The airflow is used to cool at least one heat-generating component positioned within the outer housing
Implementation Method 2
at least one isolation mount coupling the inner storage compartment to an adjacent component of the roof assembly. The at least one isolation mount is configured to reduce an amount of vibrations transmitted between the adjacent component and the inner storage compartment
Data Source
AI summary
In one aspect, a roof assembly for an operator's cab of a work vehicle includes internal storage for storing one or more heat-generating components and incorporates a cooling system for directing an airflow through the roof assembly for cooling such components.