Vacuum cleaner head
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Solution Overview
Problem
Conventional vacuum cleaners struggle to effectively clean wide areas with strong suction power without straining the user's body during long-term cleaning, and they often experience reduced suction power due to dust accumulation in the filter, leading to increased power consumption and noise.
Innovation Solution
The vacuum cleaner head features a rotor with a spiral opening and a blocking part, inserted into a drum casing with a slit on the bottom surface. The blocking part closes part of the slit, concentrating suction force on the overlapping opening surface, allowing for strong suction across a wide area using a small motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the suction area is increased to clean wide areas, then the cleaning coverage is improved, but the suction power is distributed and becomes insufficient for heavy foreign substances
Solution Approach 1:
The suction area is segmented into multiple independent suction holes instead of one large opening. This allows the total suction area to be increased while maintaining concentrated suction force at each individual hole, resolving the contradiction between wide coverage and strong suction power.
Solution Approach 2:
Different regions of the head have different numbers and sizes of suction holes tailored to specific cleaning needs. The suction structure is optimized locally for different areas, allowing both wide overall coverage and concentrated force at each suction point.
2Force
If the motor rotation speed is increased to maintain suction power, then the suction force is improved, but the power consumption and noise increase
Solution Approach 1:
By segmenting the suction area into multiple holes, the system maintains effective suction force without needing to increase motor speed. The segmented structure improves suction efficiency, allowing lower power consumption for the same cleaning effect.
3Force
If the suction area is reduced to concentrate suction power, then the suction force is improved, but the user experiences body fatigue during long-term cleaning
Solution Approach 1:
The head is designed with multiple suction holes distributed across a wider area, allowing the user to clean extensive floors without repeatedly repositioning the vacuum. This segmentation provides both concentrated suction force and wide coverage, reducing user fatigue.
4Force
If foreign substances accumulate on the filter, then the suction power is reduced, but increasing motor speed to compensate increases power consumption
Solution Approach 1:
The segmented suction hole design improves overall suction efficiency and reduces the workload on the motor. This allows the system to maintain effective suction power with lower motor speed, reducing power consumption even when filters become partially blocked.
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 design enables efficient cleaning of wide areas with strong suction power, reduces user fatigue, and minimizes noise and power consumption by concentrating suction force and preventing foreign substances from getting trapped inside the rotor.
Implementation Method 1
a rotor for suctioning foreign substances through an opening formed in the outer circumference thereof; and a drum casing having, on the bottom surface thereof, a slit in through the foreign substances are introduced
Data Source
AI summary
The present invention relates to a vacuum cleaner head, which comprises: a rotor for suctioning foreign substances through an opening formed in the outer circumference thereof; and a drum casing having, on the bottom surface thereof, a slit in through the foreign substances are introduced, and encompassing the outside of the rotor, and which suctions the foreign substances through the entire area of the opened slit formed in the bottom surface, and concentrates, at one specific moment, suction at an open surface at which both the opening of the rotor and the slit of the drum casing meet, and thus provides greater suction force in a motor having the same capacity.