Sliding drain pans for cooling units
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Solution Overview
Problem
Existing cooling units for refrigerated spaces require significant time and effort for maintenance, particularly when accessing the drain pan for servicing, often necessitating multiple technicians due to its position and weight.
Innovation Solution
The cooling unit incorporates guide-rail slides and tracks, along with a telescoping gas spring or pivot hinge, to allow the drain pan to be easily moved between an operational and maintenance position, enabling a single technician to access the area by moving the drain pan at least 10 to 12 inches away from the bottom panel, and includes selectably releasable fasteners for controlled movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the drain pan is positioned close to the bottom panel for operational efficiency, then space utilization is improved, but maintenance accessibility deteriorates
Solution Approach 1:
The drain pan is designed to be movable between a first position (close to the bottom panel) and a second position (away from the bottom panel) through guide-rail slides and tracks. This dynamic positioning allows the system to optimize space utilization during operation while enabling easy maintenance access when needed, resolving the contradiction between compact operational space and maintenance accessibility.
2Stability of the object's composition
If the drain pan is made heavy for structural stability, then stability is improved, but ease of maintenance deteriorates
Solution Approach 1:
A gas spring mechanism acts as an intermediary between the heavy drain pan and the technician. The gas spring provides controlled movement and supports the weight of the drain pan during the transition between positions, making it possible for a single technician to move the heavy component safely and easily, thus resolving the contradiction between structural stability and ease of maintenance.
3Reliability
If multiple technicians are required for maintenance, then safety is improved, but productivity deteriorates
Solution Approach 1:
The drain pan is extracted from its fixed position and made movable through guide-rail slides and tracks. This extraction allows the heavy component to be easily moved by a single technician to a maintenance position, eliminating the need for multiple technicians and thereby improving productivity while maintaining safety through controlled movement mechanisms.
4Reliability
If the drain pan is fixed in position for reliability, then reliability is improved, but ease of maintenance deteriorates
Solution Approach 1:
The drain pan transitions from a fixed design to a dynamic, movable design with guide-rail slides and tracks. This allows the system to maintain operational reliability during use while enabling easy maintenance access when needed, resolving the contradiction between fixed-position reliability and ease of maintenance.
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 design facilitates efficient and safe single-person operation for maintenance, reducing the time and labor required to move the drain pan, thereby improving maintenance accessibility and efficiency.
Implementation Method 1
at least one telescoping gas spring coupled at a first end to the drain pan and at the other end to a portion of the cabinet and that is configured to allow the drain pan to move between the operational position and the maintenance position slower than it otherwise would
Data Source
AI summary
In one instance, a cooling unit for use as an aspect of a cooling system includes a cabinet having a plurality of panels and having an interior, a front face with a fan aperture formed in the front face, and a bottom panel. The cooling unit further includes a drain pan below the bottom panel. The cooling unit also includes a plurality of guide-rail slide and track assemblies coupled between at least a portion of the cabinet and the drain pan for providing controlled movement of the drain pan between an operational position and a maintenance position. Other cooling units are disclosed with drain pans that may be lowered by a single technician.