Electric Burnisher Variable Speed Control for Multi-Surface Cleaning
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Solution Overview
Problem
Existing burnishers, particularly those powered by lead-acid batteries, lack adjustable or variable speed control for the burnishing pad, making it difficult to clean multiple surfaces effectively, and they pose safety hazards due to potential acid leaks and toxic fumes, while engine-powered burnishers are cumbersome and emit toxic exhaust.
Innovation Solution
An electric burnisher equipped with lithium-ion batteries and a motor connected via a drive train, featuring a hand throttle or LCD display for variable speed control, allowing the pad speed to be adjusted based on user input, thus accommodating different floor types, coatings, and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If lead-acid batteries are used to power the burnisher, then the burnisher can operate without being near an outlet and produce no exhaust emissions, but the burnishing pad lacks variable speed control and the batteries can leak sulfuric acid or emit toxic fumes when overheated
Solution Approach 1:
The patent applies parameter changes by transitioning from fixed-speed lead-acid battery motors to variable-speed lithium-ion battery motors with electronic speed control. This allows the burnishing pad speed to be adjusted according to different floor surfaces and conditions, resolving the contradiction between emission-free operation and operational flexibility.
Solution Approach 2:
The patent replaces the mechanical belt and pulley speed control system with an electronic variable speed motor control system powered by lithium-ion batteries. This substitution enables precise speed adjustment while maintaining the emission-free advantage of battery operation.
2Ease of operation
If engine-powered burnishers are used, then variable pad speed control and greater cleaning power are achieved, but the burnishers emit toxic exhaust fumes and require frequent refueling
Solution Approach 1:
The patent replaces the internal combustion engine with an electric motor powered by lithium-ion batteries, eliminating exhaust emissions while retaining variable speed control capability through electronic motor control.
Solution Approach 2:
The patent changes the power source from chemical combustion to electrical energy storage, allowing variable speed operation without producing harmful emissions. The lithium-ion batteries provide sustained operation without frequent refueling.
3Ease of repair
If lead-acid batteries are used, then lower maintenance costs and quieter operation are achieved, but the batteries can leak sulfuric acid and emit toxic fumes when overheated during charging
Solution Approach 1:
The patent uses lithium-ion battery technology which combines multiple safety features including sealed construction, thermal management systems, and chemically stable electrolytes. This composite approach eliminates sulfuric acid leakage risks while maintaining low maintenance requirements and quiet operation.
Solution Approach 2:
The patent converts the potential harm of battery overheating by implementing thermal management systems and using lithium-ion chemistry that is inherently more stable and less prone to thermal runaway compared to lead-acid batteries.
4Device complexity
If a single burnishing pad speed is used, then the motor operation is simplified, but it becomes challenging to clean multiple surfaces with different requirements
Solution Approach 1:
The patent implements dynamic speed control where the motor speed can be adjusted in real-time based on the specific cleaning requirements of different surfaces. This dynamic adaptability allows a single burnisher to effectively clean multiple surface types without changing pads or motors.
Solution Approach 2:
The patent creates a universal burnishing system through variable speed control that can adapt to different floor types, coatings, and conditions, allowing one machine to perform multiple cleaning functions that previously required different equipment.
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
Enables effective cleaning of various surfaces by allowing speed adjustments, reducing maintenance risks, and providing safer operation with lithium-ion batteries' higher energy density and reduced acid spill hazards compared to lead-acid batteries.
Implementation Method 1
lithium ion batteries can adapt the amount of energy supplied or applied to the motor
Implementation Method 2
a motor coupled to a burnishing pad, and variable speed control for the burnishing pad
Implementation Method 3
The motor may be connected to the burnishing pad via a drive train comprising a belt and at least one pulley
Data Source
AI summary
A burnisher for cleaning and polishing floors is provided. The burnisher includes at least one electric motor powered by at least one battery. The at least one battery can be provided as one or more lithium ion batteries. The burnisher is configured to rotate a burnisher pad at various speeds, as selected by the operator. The burnisher includes a control area including various input and output devices that can control the burnisher and provide information regarding operational parameters of the burnisher, respectively. The control area further includes a touchscreen display that allows the operator to direct the operation of the burnisher.