Control Board Enclosure Sliding Platform Humidity Isolation
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Solution Overview
Problem
Control boards in air handlers are prone to short-circuiting due to fluctuations in humidity during on-off cycles, leading to frequent replacements.
Innovation Solution
A control board enclosure assembly that isolates the internal air pocket from the surrounding environment by using a cover and insert configuration, formed from a single sheet of metal, to stabilize humidity levels and prevent air exchange, thereby extending the longevity of the control board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the control board is located within the housing of the air handler, then it is easily accessible and integrated into the system, but it is exposed to humidity fluctuations that cause short-circuiting
Solution Approach 1:
The control board enclosure is divided into two main segments: a stationary cover that attaches to the air handler housing, and a removable insert that holds the control board. This segmentation allows the control board to be isolated from the humid environment while maintaining easy access through the removable insert design.
Solution Approach 2:
The enclosure assembly acts as an intermediary between the control board and the humid air handler environment. By placing the control board inside the sealed enclosure with the insert, the system mediates the harmful humidity exposure while preserving accessibility when needed.
2Reliability
If the control board is sealed within an enclosure, then humidity fluctuations are reduced and reliability improves, but accessibility for replacement becomes more difficult
Solution Approach 1:
The insert is designed to be dynamically removable and reinsertable into the cover. This dynamic design allows the control board to be easily accessed for replacement by simply removing the insert, while maintaining the sealed enclosure for reliability when installed.
Solution Approach 2:
By separating the control board into a removable insert rather than permanently sealing it, the design maintains both protection and accessibility. The segmented structure allows easy replacement without compromising the sealed enclosure's protective function.
3Ease of manufacture
If a traditional fixed enclosure is used, then manufacturing is simple, but accessibility and maintainability are reduced
Solution Approach 1:
The enclosure is manufactured as separate components (cover and insert) that are assembled together. This segmentation maintains manufacturing simplicity while enabling easy access to the control board through insert removal.
Solution Approach 2:
The removable insert design introduces dynamic accessibility to an otherwise simple fixed enclosure structure. The insert can be easily removed and reinstalled without complex tools or procedures, maintaining ease of manufacture while improving maintainability.
Data Source
AI summary
A control board enclosure with a slideable platform configured for use within an air handler. The control board enclosure is configured such that the humidity within the enclosure is stabilized or more stable as compared to the more rapid changes in humidity that may be occurring externally. The control board enclosure is substantially sealed or air tight through the use of gaskets, sealant, and/or close fittings that the rapid changes in humidity of the external environment are less likely to affect objects within the enclosure. This humidity stabilization can improve the longevity of the control board stored therein.