Dual-Mode Electric Floor Brush Using Current-Based Load Detection
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Solution Overview
Problem
Existing electric floor brushes in vacuum cleaners require complex systems like cameras, sensors, and industrial personal computers to adjust power based on varying floor types, increasing complexity and cost.
Innovation Solution
An intelligent dual-mode electric floor brush with a control circuit that includes a conversion unit, sampling unit, comparison unit, and switch unit to adjust voltage based on load, eliminating the need for complex hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera or sensor is used to recognize different work scenarios, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The electric floor brush automatically detects work scenario resistance and adjusts its own power output without external control systems. The motor controller monitors current consumption and autonomously switches between voltage modes, eliminating the need for cameras, sensors, or complex computers.
Solution Approach 2:
The patent replaces complex optical/mechanical detection systems (cameras, sensors) with an electrical detection mechanism based on current monitoring. The control system uses electrical parameters (current, voltage) to infer work conditions and adjust power, substituting mechanical complexity with simpler electrical control.
2Measurement precision
If an industrial personal computer or single chip microcomputer is used to control visual devices, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The motor controller performs self-diagnosis by monitoring its own current consumption to determine work conditions. This self-service approach eliminates the need for external computers or microcomputers, achieving accurate detection through simple current threshold comparison.
Solution Approach 2:
The patent replaces expensive, complex computing devices with a simple, low-cost control circuit that uses basic electrical components (resistors, capacitors, transistors) to achieve the required detection and control functions.
3Productivity
If the electric floor brush changes output power according to varying work scenarios, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The electric floor brush dynamically adjusts its power output by switching between two voltage modes (first voltage for high resistance, second voltage for low resistance). This dynamic adaptation optimizes cleaning efficiency for different floor types while keeping the control mechanism simple through dual-mode operation.
Solution Approach 2:
The patent changes the electrical parameter (voltage) to match different work scenarios. By switching between two discrete voltage levels based on detected resistance conditions, the system optimizes power delivery and cleaning performance without requiring complex continuous control.
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 simplifies the structure, reduces manufacturing costs, and enhances cleaning efficiency while optimizing power consumption, prolonging battery life.
Implementation Method 1
a sampling unit connected to an output end of the floor brush motor, so as to generate a sampled voltage according to a sampled current at the floor brush motor
Implementation Method 2
a conversion unit that is connected to an output end of the power supply and an input end of the floor brush motor and converts a first voltage of the power supply to a second voltage
Data Source
AI summary
The present disclosure discloses an intelligent dual-mode electric floor brush. The intelligent dual-mode electric floor brush includes a control circuit, where the control circuit is connected between a power supply and a floor brush motor, and the control circuit includes: a conversion unit that is connected to an output end of the power supply and an input end of the floor brush motor and converts a first voltage of the power supply to a second voltage; and a switch unit. The present disclosure is simple in structure, without complicated hardware such as a single chip microcomputer and an industrial personal computer, and low in production and manufacturing cost. In addition, cleaning efficiency can be improved, power consumption can be reduced, and a battery life of a vacuum cleaner can be prolonged.