Suspended Electrical Box Lid for Ceiling AC Maintenance
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Solution Overview
Problem
In ceiling-mounted air conditioners, maintenance workers face inefficiencies during electrical component maintenance due to the need to hold or place screws in inconvenient locations, limiting finger movement and requiring posture changes or stepping off ladders.
Innovation Solution
An electrical-component box with a plate-like lid that can be suspended from the air conditioner body, featuring a temporary item-placement portion on its bent edge for securely holding screws and other components, allowing them to be placed without disrupting the worker's posture or balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If screws are temporarily placed on the top of the stepladder, then screws can be held during maintenance, but the worker needs to significantly change posture to pick up screws
Solution Approach 1:
The temporary item-placement portion is designed to be positioned at the same height level as the electrical-component box, creating an equipotential working surface. This eliminates the need for significant posture changes when picking up or placing screws, as everything is within the same ergonomic zone.
2Loss of time
If screws are temporarily placed on the floor, then screws can be held during maintenance, but the worker needs to step off the stepladder
Solution Approach 1:
The temporary item-placement portion is prepared in advance as part of the lid structure, positioned at an elevated and accessible location. This preliminary preparation eliminates the need for workers to step off the stepladder or change their working position, maintaining both stability and efficiency throughout the maintenance process.
Data Source
AI summary
An air conditioner including an electrical-component box to accommodate therein electrical components on a lower surface of the air conditioner in an installation state in which the air conditioner is installed in a ceiling, wherein the electrical-component box includes an electrical-component box body having a box shape with a lower surface opened in the installation state, and including a body-side engaging portion protruding outward from a side surface, and a plate-like lid capable of closing the opening and including a lid-side engaging portion to be engaged with the body-side engaging portion, and wherein the lid is capable of being suspended from the electrical-component box body by engaging the lid-side engaging portion with the body-side engaging portion, and the lid includes a temporary item-placement portion on which items can be temporarily placed in a suspended state in which the lid is suspended from the electrical-component box body.