Vacuum Inlet Door Lighting With Directional LED Illumination
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Solution Overview
Problem
Existing vacuum cleaning systems with wall-mounted inlet doors lack an effective lighting system to illuminate the area in front of the inlet, making it difficult to ensure all debris is drawn into the system.
Innovation Solution
A lighting device is integrated into the inlet door, utilizing LED lighting elements positioned at a specific azimuth and horizontal plane angle, with an optical fiber guide for directional lighting that activates when the door is open and extinguishes when closed, and is electrically coupled to the facility control wiring to activate the central vacuum system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a lighting device is added to illuminate the area in front of the inlet door, then the visibility and debris removal completeness is improved, but the device complexity and cost increase
Solution Approach 1:
The lighting device is integrated into the inlet door assembly by mounting the LED within the door structure and coupling it to the door's actuation mechanism. The housing contains both the lighting elements and the door mechanism, merging two functional components into a single integrated unit that reduces overall system complexity despite adding lighting functionality.
Solution Approach 2:
The inlet door assembly serves multiple functions: it acts as a closure for the vacuum inlet, a switch for activating the vacuum system, and now also houses the lighting device that illuminates the cleaning area. This multi-functionality justifies the increased complexity by providing additional value without requiring separate standalone components.
2Illumination intensity
If LED lighting elements are positioned at specific azimuth and horizontal plane angles, then the directional illumination effectiveness is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The lighting device provides localized illumination directed specifically at the area in front of the inlet door where debris accumulation is most likely. The LED elements are positioned at specific azimuth and horizontal plane angles to concentrate light where it is most needed, rather than providing omnidirectional illumination, thereby achieving effective lighting with moderate positioning precision.
Solution Approach 2:
An optical fiber guide is used as an intermediary to transmit light from the LED source to the desired illumination area. This allows the LED to be positioned in a convenient location within the door assembly while still achieving precise directional illumination at the target area, reducing the manufacturing precision requirements for LED positioning.
3Volume of moving object
If the lighting device is integrated into the rotatable door, then the space utilization is improved, but the reliability of the lighting system decreases
Solution Approach 1:
The lighting device is nested within the rotatable door structure, with the LED and housing contained inside the door assembly. This efficient use of space within the moving door component achieves good space utilization while keeping the lighting system compact and integrated.
Solution Approach 2:
The lighting elements are electrically coupled to the facility control wiring through the door's actuation mechanism, extracting the electrical connection from the rotating moving parts and anchoring it to the stationary door frame. This separation of moving and stationary electrical connections maintains reliability while allowing the lighting device to remain integrated in the rotatable door.
4Use of energy by moving object
If the lighting device activates when the door is open and extinguishes when closed, then the energy efficiency is improved, but the device complexity increases
Solution Approach 1:
The lighting device is controlled by a switch mechanism that detects the door's position (open or closed) and automatically activates or extinguishes the lights accordingly. This feedback-based control ensures the lighting operates only when needed (door open), improving energy efficiency without requiring complex timing or sensing systems.
Solution Approach 2:
The lighting device is self-regulating through its integration with the door's existing actuation mechanism. The same mechanism that opens and closes the door also automatically controls the lighting, eliminating the need for separate control systems and achieving energy efficiency through the door's own operational states.
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 lighting device ensures thorough illumination of the area in front of the inlet door, facilitating complete debris removal and efficient operation of the vacuum system by ensuring all dirt and debris are drawn into the vacuum cleaner.
Implementation Method 1
The lighting device is positioned behind the rotatable door and may include an optical fiber guide for directional positioning of the light.
Data Source
AI summary
A vacuum cleaner inlet door lighting device for illuminating the area directly in front of a vacuum cleaner wall mounted inlet. The lighting device includes LED's operated upon the opening of a rotatable door have a directional pattern for optimum illumination. The LED's are mounted behind the rotatable door to cause illumination when the rotatable door is open. In an alternative embodiment the LED's are remotely mounted using fiber optic cabling for direction of the light when the rotatable door is opened. When the rotatable door opens the area in front of the wall mounted inlet is illuminated so that the dirt and debris can be seen while being pushed into the collection container. When the rotatable door is closed, the illumination is turned off.