Transformable Blade Vacuum Cleaner Suction Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vacuum cleaners face challenges in effectively suctioning large and hard foreign materials due to inadequate gap width between the brush drum and blade, leading to insufficient suction force or damage to the brush drum or blade.
Innovation Solution
A vacuum cleaner design featuring a suction unit with a rotatable brush drum and an elastically transformable blade that adjusts its shape to widen the gap, allowing for stronger suction and preventing damage during the cleaning of large foreign materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the gap between the brush drum and the blade is narrowed to increase suction force, then the suction power is improved, but large and hard foreign materials cannot pass through the gap and may cause damage to the brush drum or blade
Solution Approach 1:
The blade is designed with a transformable portion that can dynamically change its position and shape. When a large foreign material is detected, the blade automatically transforms to widen the gap, allowing the material to pass through. This dynamic adaptability resolves the contradiction by enabling the gap to be narrow during normal operation for strong suction, and wide when needed to accommodate large objects.
Solution Approach 2:
The physical state and position of the blade are changed based on operating conditions. The transformable portion of the blade can shift between different positions (normal position for strong suction, transformed position for large materials), effectively changing the gap parameter dynamically. This allows the system to optimize both suction power and adaptability to different foreign material sizes.
2Adaptability or versatility
If the gap between the brush drum and the blade is widened to allow large foreign materials to pass, then the adaptability is improved, but the suction force becomes too weak to effectively suction hard and big foreign materials
Solution Approach 1:
The blade transforms dynamically based on the size and type of foreign material encountered. During normal operation with fine particles, the blade maintains its original position to preserve strong suction force. When a large foreign material is detected, the transformable portion automatically adjusts to widen the gap, allowing the material to pass through without damaging the brush drum or blade.
Solution Approach 2:
The gap width parameter is changed dynamically through the transformable blade mechanism. The blade can switch between a narrow gap configuration (for strong suction of fine particles) and a wide gap configuration (for passing large foreign materials). This parameter transformation allows the system to optimize performance for different cleaning scenarios.
3Reliability
If a fixed rigid blade is used to maintain structural stability, then the reliability is improved, but the blade cannot adapt to different sizes of foreign materials and may cause damage
Solution Approach 1:
The blade incorporates a transformable portion that can dynamically adjust its position and shape while maintaining overall structural integrity. The fixed portion provides structural stability and reliability, while the transformable portion enables adaptation to different foreign material sizes. This combination allows the blade to maintain reliability while gaining versatility.
Solution Approach 2:
The blade is divided into a fixed portion and a transformable portion. The fixed portion maintains structural stability and reliability, while the transformable portion provides adaptability to different foreign material sizes. This segmentation allows the blade to simultaneously achieve both reliability and versatility by assigning different functions to different parts of the structure.
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 design enhances suction power for large foreign materials while maintaining durability by allowing the blade to transform and accommodate larger items, preventing damage to the brush drum or blade.
Implementation Method 1
a suction unit comprising a suction chamber opened to suck foreign materials by the suction force
Implementation Method 2
The brush drum strikes a target while rotating, thereby separating the foreign materials attached to the carpet or floor from the carpet or floor
Implementation Method 3
a blade provided to collect foreign materials as extended along an extending direction of the brush drum while being spaced apart leaving a gap from the brush drum inside the suction chamber, and including a transformable portion to be transformed to widen the gap
Data Source
AI summary
A vacuum cleaner is provided. The vacuum cleaner includes a cleaner body generating a suction force, and a suction unit comprising a suction chamber opened to suck foreign materials by the suction force. The suction unit includes a brush drum partially protruding toward an outside of the suction chamber within the suction chamber and provided rotatably, and a blade provided to collect foreign materials as extended along an extending direction of the brush drum while being spaced apart leaving a gap from the brush drum inside the suction chamber, and including a transformable portion to be transformed to widen the gap.