Temporary Emergency Elevator Lighting Assembly

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Solution Overview

Problem

Existing elevator cab lighting systems face challenges in providing code-compliant temporary and emergency lighting during construction and renovation, especially when dealing with translucent light diffuser panels that block significant light, and there is a need for a solution that allows for efficient transition to permanent lighting after construction is complete.

Innovation Solution

A temporary and emergency elevator interior lighting assembly that includes a temporary LED light fixture and power supply, along with an emergency LED power supply module, which can be reused to power permanent lighting fixtures, ensuring code-compliant illumination both during and after construction, and accommodating different ceiling types by adjusting light source placement and intensity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If light sources are positioned above translucent light diffuser panels to provide permanent elevator interior lighting, then code-compliant illumination can be achieved, but light blockage by the panels reduces lighting efficiency and requires higher intensity light sources

Engineering Contradiction:

Improvecode-compliant illuminationVSAvoidlight blockage

Core Design Contradiction:

Illumination intensityVSLoss of energy

Solution Approach 1:

The patent employs adjustable LED fixtures that can dynamically change their light output intensity and positioning. The LED fixtures mounted above the diffuser panels can be adjusted to compensate for light blockage, allowing the system to adapt to different ceiling types and maintain code-compliant illumination while minimizing energy waste from excessive light output.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If temporary lighting systems are installed during construction and renovation, then code-compliant illumination is provided, but the systems must be removed and replaced with permanent lighting after construction is complete

Engineering Contradiction:

Improvetemporary and permanent lighting capabilityVSAvoidremoval and replacement time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent creates a universal lighting system where LED fixtures and power supplies can serve dual purposes as both temporary construction lighting and permanent elevator lighting. The same LED fixtures mounted above the ceiling can function during construction without diffuser panels and later serve as permanent lighting when diffuser panels are installed, eliminating the need for complete system replacement and reducing transition time.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent enables recovery and reuse of lighting components. The LED fixtures and power supplies installed temporarily during construction are not discarded but rather retained and integrated into the permanent lighting system, recovering valuable components and avoiding waste while reducing the time and cost of installing permanent lighting.

Inventive Principle:

Principle #34Discarding and recovering

3Illumination intensity

If high intensity light sources are used above translucent diffuser panels to overcome light blockage, then sufficient illumination is achieved, but energy consumption increases

Engineering Contradiction:

Improvelight output through panelsVSAvoidenergy consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent utilizes adjustable LED fixtures that can change their operational parameters, specifically light output intensity. Rather than using fixed high-intensity sources that waste energy, the LED fixtures can be adjusted to emit only the necessary amount of light required to achieve code-compliant illumination through the diffuser panels, optimizing energy consumption based on actual lighting requirements.

Inventive Principle:

Principle #35Parameter changes

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 provides reliable, code-compliant temporary and emergency lighting during construction and renovation, and allows for seamless transition to permanent lighting, optimizing light output through the use of adjustable LED fixtures and power supplies, meeting ASME standards for illumination levels.

Implementation Method 1

temporary LED light fixture 14 may include LEDs 20, which may be arranged in a string

Methodology Applied

Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS11274018B2Temporary and emergency elevator interior lighting assembly

Publication Date: 2022.03.15 MAN D TEC

AI summary

Elevator interior lighting provided by a temporary LED light fixture and power supply installed on or adjacent an elevator canopy. The temporary LED power supply comprises an LED driver and an emergency LED power supply. The LED driver connects to LEDs of the temporary LED light fixture and supplies sufficient power to provide code-compliant temporary lighting in the cab. The emergency LED power supply module connects to one or more emergency LEDs and supplies sufficient power to provide code-compliant emergency lighting in the cab upon loss of primary electrical power. To minimize costs when converting to permanent lighting, additional LED light fixtures can be added and connected to the same temporary LED power supply, and the emergency LED power module may be relocated into a down light power supply to power two or more down lights in the event of a loss of primary electrical power.