Integrated Fan-Light Housing With Dual-Mode LED Illumination

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional lighting and ventilating systems often have a bulky, unaesthetic design, inefficient cooling of light fixtures, and lack adequate illumination, particularly with only one illumination source which can be insufficient for providing quiescent lighting.

Innovation Solution

A lighting and ventilating system with a main housing that includes a fan wheel for air flow, a grille with multiple apertures and light-emitting diodes, a lamp housing with a separate set of illumination devices, and a plate adjacent to the illumination devices, allowing for adjustable lighting based on occupancy, with the second set of illumination devices activating in unoccupied spaces and the first set activating when the space is occupied.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If conventional lighting and ventilating systems combine elements of a conventional room ventilating fan with a light fixture, then ventilation and lighting functions are integrated, but the apparatus has a bulky, unaesthetic appearance and complicated design

Engineering Contradiction:
Improveapparatus sizeVSAvoiddesign complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent merges the ventilating fan and light fixture into a single integrated apparatus, combining previously separate ventilation and lighting functions into one unified device with a common housing, motor assembly, and control system

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated apparatus performs multiple functions simultaneously - ventilation through the fan motor and lighting through the illumination devices - allowing a single device to replace what would traditionally require separate ventilation and lighting systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If conventional lighting and ventilating systems use a single illumination source, then the design is simplified, but the functionality is lacking particularly for providing quiescent lighting

Engineering Contradiction:
Improvelighting functionalityVSAvoidillumination system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The illumination system is segmented into multiple independent illumination devices with different functions - primary lighting devices for main illumination and quiescent lighting devices for ambient lighting - allowing each segment to be optimized for its specific purpose while operating independently or in combination

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The lighting system is made dynamic through independent control of different illumination devices, allowing the system to adapt its lighting output based on occupancy detection and time of day, transitioning between full lighting and quiescent lighting modes as needed

Inventive Principle:
Principle #15Dynamics

3Temperature

If conventional systems lack adequate cooling of the light fixture, then the design is simpler, but the light fixture fails to be adequately cooled

Engineering Contradiction:
Improvelight fixture temperatureVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The cooling function is merged with the ventilation function, using the same fan motor and airflow path to both ventilate the space and cool the light fixture, eliminating the need for a separate cooling system

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ventilation system performs dual functions - providing airflow to ventilate the occupied space and simultaneously directing airflow across the light fixture to dissipate heat, making the ventilation system universally responsible for both environmental control and thermal management

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system provides improved aesthetics, efficient air flow, and adjustable lighting intensities, enhancing both ventilation and illumination functionality while maintaining a compact design.

Implementation Method 1

A fan wheel can be supported in the main housing and it can be operable to generate a flow of air

Methodology Applied
Scientific EffectFan: Fan

Implementation Method 2

the grille can comprise a plurality of apertures and a second set of illumination devices

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Implementation Method 3

the lamp housing can include a first set of illumination devices

Methodology Applied
Scientific EffectIllumination devices: Light Emitting Diode

Data Source

PatentUS9605867B2Lighting and ventilating system and method
Publication Date: 2017.03.28 BROAN NUTONE LLC
  • US9605867B2 patent drawing
  • US9605867B2 patent drawing
  • US9605867B2 patent drawing

AI summary

Embodiments of the invention provide a lighting and ventilating system including a main housing. The main housing can include an inlet through which air can be received within the main housing and an outlet through which the air can exit the main housing. A fan wheel can be supported in the main housing and it can be operable to generate a flow of air. A grille can be coupled to the main housing and the grille can comprise a plurality of apertures and a second set of illumination devices. The system further can include a lamp housing coupled to the grille, the lamp housing can include a first set of illumination devices. Also, a plate can be coupled to the grille so that the plate is adjacent to the second set of illumination devices.