Fan Head Assembly Rear Lighting for Airflow Preservation
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Solution Overview
Problem
Existing fans with integrated lighting face challenges in balancing air supply and lighting functions, as front-side lighting limits the lighting range and affects air supply area, making it difficult to achieve both functionalities effectively.
Innovation Solution
A head assembly with a fan and lighting device where the lighting is positioned at the air inlet end, emitting light towards the rear side, allowing for independent adjustment and rotation, and utilizing a reflector, light guide, and diffusion member to enhance lighting uniformity and projection, while maintaining air flow through the air outlet end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If lighting is arranged at the front side of the fan, then the lighting function is achieved, but the lighting range is limited and the air supply area is affected
Solution Approach 1:
The fan head is divided into two distinct functional zones: the front side is dedicated to air supply function with the air outlet, and the rear side is dedicated to lighting function with the lighting device arranged at the air inlet end. This spatial segmentation allows both functions to operate independently without interfering with each other, resolving the contradiction between lighting range and air supply area.
Solution Approach 2:
Instead of arranging the lighting device at the conventional front side (air outlet end), the patent inverts the arrangement by placing it at the rear side (air inlet end). The lighting device emits light towards the rear side, away from the air outlet end, which not only expands the lighting range but also preserves the entire front surface for optimal air supply.
2Illumination intensity
If the lighting device size is increased to improve lighting effect, then the lighting function is enhanced, but the air supply area is reduced
Solution Approach 1:
By segregating the lighting function to the rear side and air supply function to the front side, the patent eliminates the spatial competition between these two functions. The lighting device can be sized appropriately for optimal lighting effect without encroaching on the air supply area, as both functions occupy distinct spatial zones.
Solution Approach 2:
The patent transitions from a single-dimension (front-side) lighting arrangement to a two-dimensionaI arrangement by utilizing both the front and rear sides of the fan head. This dimensional expansion allows the lighting device to achieve excellent lighting effect without compromising the air supply area, as the lighting function is distributed to the rear side while the front side remains dedicated to air supply.
3Adaptability or versatility
If the fan head structure is modified to accommodate rear-side lighting, then the lighting function is improved, but the device complexity increases
Solution Approach 1:
The fan head is designed with multi-functionality by integrating both air supply and lighting functions within a single structure. The cover structure serves dual purposes: it encloses the fan assembly for air supply while also providing mounting support for the lighting device at the rear side. This universal design achieves multiple functions without proportionally increasing complexity.
Solution Approach 2:
The patent combines the air supply function (front side with air outlet) and lighting function (rear side with lighting device) into a single integrated fan head assembly. The cover structure acts as a unified component that accommodates both functions, merging what could have been separate devices into one cohesive unit, thereby improving versatility while controlling complexity.
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 configuration provides a multi-functional solution that satisfies both air-blowing and lighting needs without limiting the size of the lighting device, offering excellent lighting effects and flexibility in positioning, ensuring effective air supply and rear lighting without compromising the air supply area.
Implementation Method 1
a lighting device arranged at the air inlet end of the cover structure, where the lighting device emits light rays towards a direction away from the air outlet end
Implementation Method 2
utilizing a reflector, light guide, and diffusion member to enhance lighting uniformity and projection
Data Source
AI summary
A head assembly includes a cover structure provided with an air outlet end and an air inlet end that are opposite each other, a fan assembly arranged in the cover structure, and a lighting device arranged at the air inlet end of the cover structure. The lighting device is configured to emit light rays towards a direction away from the air outlet end.