Elevator Downward Illumination Assembly Maintenance Access

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Solution Overview

Problem

Downward illumination assemblies in elevator passenger compartments pose a maintenance challenge due to the need to access areas above the assembly for power supply replacement or repair, requiring removal of ceiling panels.

Innovation Solution

A downward illumination assembly design with a lamp housing and power supply module support system that allows for easy installation and removal of components through an open lower end, enabling access without needing to access the assembly from above, featuring a power supply module that can be partially external and removably supported within the lamp housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the power supply module is permanently installed inside the lamp housing, then the assembly structure is compact and stable, but maintenance requires access to areas above the assembly and removal of ceiling panels

Engineering Contradiction:
Improvemaintenance accessibilityVSAvoidassembly structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The power supply module is separated from the LED module, with the power supply module designed as a removable component that can be independently accessed through the open lower end. This segmentation allows maintenance personnel to replace the power supply without accessing ceiling areas, while the LED module remains securely installed in the lamp housing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The power supply module is extracted from the traditional enclosed position inside the lamp housing and repositioned to be partially external, accessible through the open lower end. This extraction enables easy removal and replacement of the power supply module without requiring access to areas above the assembly or removal of ceiling panels.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If the power supply module is accessible from above through ceiling panels, then replacement is straightforward, but extensive ceiling panel access is required increasing maintenance time and complexity

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidmaintenance time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The power supply module is extracted from the ceiling-mounted position and repositioned to be accessible from below through the open lower end of the lamp housing. This eliminates the need to remove ceiling panels and access areas above the assembly, significantly reducing maintenance time and improving productivity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of accessing the power supply module from above through ceiling panels, the design inverts the access direction by making the power supply module accessible from below through the open lower end. This inversion of the access path simplifies maintenance procedures and reduces the time required for power supply replacement.

Inventive Principle:
Principle #13The other way round (Inversion)

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

Facilitates the easy removal and replacement of power supply and LED modules without requiring access above the assembly, simplifying maintenance and reducing the need for extensive ceiling panel access, thus enhancing maintenance efficiency.

Implementation Method 1

An LED module comprising an LED may be disposed within and carried by the lamp housing and coupled to the power supply

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS9696022B2Downward illumination assembly
Publication Date: 2017.07.04 MAN D TEC
  • US9696022B2 patent drawing
  • US9696022B2 patent drawing
  • US9696022B2 patent drawing

AI summary

A downward illumination assembly comprising a lamp housing, a power supply module removably supported on a power supply module support surface, and an LED module carried by the lamp housing and coupled to the power supply module. The power supply module extends through an opening in the housing wall with at least a portion of the module being disposed outside the lamp housing and can be installed and removed interiorly of the lamp housing through the open lower end of the lamp housing.