Motorized suction head
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motorized vacuum cleaner brushes operate at a substantially constant speed, which is not adaptable to varying cleaning surfaces or dirt conditions, limiting efficiency and battery life.
Innovation Solution
A motorized brush with a variable speed rotation mechanism, controlled by a selector or rheostat, and a power management system to optimize operation based on surface type and dirt quantity, featuring a stop system to prevent excessive load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the roller rotates at a substantially constant speed, then the rubbing force is substantially constant and predictable, but the cleaning efficiency cannot be adapted to varying surface types or dirt conditions
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static constant-speed motor to a dynamic variable-speed motor system. The electric motor's rotation speed is made adjustable through electronic control, allowing the roller speed to be dynamically modified based on cleaning requirements. This enables adaptation to different surface types (hard floors, carpets) and dirt conditions while maintaining a relatively simple overall device structure through electronic rather than mechanical control.
Solution Approach 2:
The patent implements parameter changes by modifying the operating parameters of the electric motor, specifically the rotation speed. A speed selector device allows the user to change the motor's rotation speed parameter between multiple predetermined values. This parameter adjustment enables the same device to adapt to various cleaning scenarios without requiring structural modifications, resolving the contradiction between adaptability and device complexity.
2Productivity
If the roller rotates at a higher speed for more energetic cleaning, then cleaning efficiency improves, but energy consumption increases and battery life decreases
Solution Approach 1:
The patent applies dynamics by enabling the motor speed to be dynamically adjusted according to actual cleaning needs. Instead of operating at a fixed high speed that consumes excessive energy, the system can adapt its rotation speed in real-time. This dynamic adjustment allows the device to maintain high productivity when needed while conserving energy during normal cleaning tasks, thereby extending battery life.
Solution Approach 2:
The patent implements periodic action through the on/off switch that allows the motor to be activated only when cleaning is required. Additionally, the speed selector enables periodic switching between different speed levels based on the cleaning task at hand. This intermittent and variable operation reduces overall energy consumption compared to continuous high-speed operation, while still maintaining high cleaning efficiency when needed.
3Power
If the motor operates at maximum power for vigorous cleaning, then cleaning performance improves, but the working time of the vacuum cleaner decreases
Solution Approach 1:
The patent applies parameter changes by allowing the motor power parameter to be adjusted through speed selection. The speed selector device enables the user to choose from multiple predetermined rotation speeds, effectively changing the power output parameter. This allows the motor to operate at maximum power only when necessary for difficult cleaning tasks, while operating at lower power levels during normal use, thereby extending the battery-powered working time without sacrificing cleaning performance when needed.
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
Enhances cleaning efficiency and extends battery life by allowing speed adjustment, improving suction performance and reducing energy consumption based on surface conditions.
Implementation Method 1
an electric motor (14)
Implementation Method 2
the roller (10) being rotatable and being configured to rub the surface to be cleaned
Implementation Method 3
for sucking up dust, debris or fluids from a surface
Data Source
AI summary
A motorized suction head comprising a roller is provided, the roller being rotatable and being configured to rub the surface to be cleaned, an electric motor and a transmission for connecting the roller to the electric motor so as to rotate the roller, an on/off switch for starting and stopping the rotation of the motor, wherein the suction head further comprises a speed selector for selecting one of a plurality of rotation speeds of the electric motor.