Suction head for vacuum cleaner
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Solution Overview
Problem
Vacuum cleaners often lack effective lighting systems that provide uniform and diffused illumination, which can hinder visibility during cleaning, especially in dark environments.
Innovation Solution
A suction head for a vacuum cleaner equipped with a light source assembly and a light guide featuring serration portions and grooves to disperse and reflect light uniformly, enhancing illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a lighting device is added to illuminate dark surfaces, then visibility during cleaning is improved, but device complexity increases
Solution Approach 1:
The lighting device is integrated into the suction head housing, merging the lighting function with the existing vacuum cleaner structure. The light source assembly is positioned within the housing and works in conjunction with the suction port, eliminating the need for separate lighting equipment and reducing overall system complexity.
Solution Approach 2:
A light guide is introduced as an intermediary component between the light source and the surface to be cleaned. The light guide receives light from the light source assembly and directs it toward the front side of the housing, effectively illuminating the cleaning area while managing light distribution through a dedicated intermediate structure.
2Illumination intensity
If multiple light sources are used to improve illumination coverage, then light diffusion is improved, but device complexity increases
Solution Approach 1:
The light guide is divided into multiple functional sections with different surface characteristics. The light-input surface receives light from multiple light sources, while the light-output surface is designed with specific geometric features to distribute light uniformly. This segmentation allows multiple light sources to work together effectively without requiring complex control systems.
Solution Approach 2:
Different surfaces of the light guide are given different optical properties. The light-input surface is designed to receive and transmit light from the light sources, while the light-output surface features specific geometries to diffuse and redirect light toward the cleaning area. This local differentiation of optical qualities enables effective light distribution from multiple sources.
3Illumination intensity
If a light guide with complex geometry is used to improve light distribution, then light uniformity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The light guide incorporates curved and angled surfaces to redirect and diffuse light uniformly. The light-output surface is formed at specific angles relative to the light-input surface, creating geometric features that naturally distribute light evenly across the cleaning area. These curved and angled surfaces achieve uniform light distribution through geometric optics rather than requiring precise control mechanisms.
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 improved light diffusion and uniformity, allowing for better visibility during cleaning and enhancing the aesthetic appeal of the vacuum cleaner.
Implementation Method 1
a light guide 50, to be disposed on a front side of the housing 10, configured to guide light emitted from the light source assembly 30
Implementation Method 2
The light-output surface 55 may be formed as a diffuse reflection surface enabled to diffuse and to reflect the emitted light
Implementation Method 3
A serration portion 52 may be formed on one surface of the light guide 50 facing the light source assembly 30. The plurality of grooves 53 may be formed in a V shape
Implementation Method 4
The light-output surface 55 may be formed as a diffuse reflection surface enabled to diffuse and to reflect the emitted light
Data Source
Figure 1
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AI summary
A suction head 1 for a vacuum cleaner includes: a housing 10 including a suction port; a light source assembly 30 to be disposed inside the housing 10 and configured to emit light; and a light guide 50 to be disposed on a front side of the housing 10 and configured to guide light emitted from the light source assembly 30 to be emitted toward the front side of the housing 10. A serration portion 52 is formed on one surface of the light guide 50 facing the light source assembly 30.