Elevator Car Lighting and Ventilation Integration
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Solution Overview
Problem
Elevator cars require improved lighting and ventilation systems that can function effectively with closed doors, while also being easy to produce, install, and maintain, and without increasing the outer dimensions to accommodate more space for passengers and load.
Innovation Solution
An integrated lighting and ventilation system is designed where the lighting arrangement, comprising LED elements and decorative elements, is strategically placed between the sidewalls and outer walls of the elevator car, forming a ventilation channel that allows for efficient illumination and air exchange even when doors are closed, utilizing gaps between structural and decorative elements for both functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the outer dimensions of the elevator car are increased to provide more space for passengers and load, then the available interior space is improved, but the outer dimensions of the elevator car increase
Solution Approach 1:
The patent combines the lighting arrangement and ventilation system into a single integrated structure. The lighting elements are positioned within decorative elements that simultaneously serve as ventilation channels, merging two separate functional systems into one compact unit. This allows both lighting and ventilation functions to be achieved without requiring additional space that would increase the car's outer dimensions.
Solution Approach 2:
The decorative elements serve multiple functions simultaneously: they provide aesthetic illumination, create ventilation channels for air exchange, and define the interior space. By making the decorative elements multi-functional, the patent achieves lighting and ventilation without requiring separate dedicated structures, thereby maximizing interior space without increasing outer dimensions.
2Reliability
If separate lighting arrangements and ventilation systems are installed, then the illuminating and ventilating capabilities are achieved, but the device complexity and space requirements increase
Solution Approach 1:
The patent merges the lighting arrangement and ventilation system into a single integrated structure. The lighting elements are positioned within decorative elements that simultaneously serve as ventilation channels, merging two separate functional systems into one compact unit. This reduces device complexity while maintaining both illuminating and ventilating capabilities.
3Reliability
If traditional lighting and ventilation systems are used, then the basic functions are provided, but the ease of installation and maintenance is reduced
Solution Approach 1:
The integrated lighting and ventilation system is designed as a modular assembly that can be installed as a single unit. The decorative elements with embedded lighting and integrated ventilation channels form a self-contained module that simplifies installation compared to coordinating separate lighting and ventilation systems. This segmented modular design also facilitates easier maintenance by allowing the entire lighting-ventilation assembly to be accessed and serviced together.
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 enhances both illumination and ventilation within the elevator car, maintaining passenger space and load capacity without enlarging the car's outer dimensions, and simplifies installation and maintenance with features like hook and loop fasteners and efficient LED usage.
Implementation Method 1
the lighting arrangement, comprising LED elements
Implementation Method 2
forming a ventilation channel that allows for efficient illumination and air exchange even when doors are closed, utilizing gaps between structural and decorative elements for both functions
Data Source
AI summary
An elevator car (2) comprising a passenger compartment defining an interior space (4) surrounded by sidewalls (62, 63, 64) and at least one car door; and at least one lighting arrangement (11) configured to illuminate the interior space (4). Said lighting arrangement (11) is associated with a ventilation system (18) configured to ventilate the interior space (4) even in a situation where the car door is closed.