Portable Surface Cleaner Tank and Handle Layout for Carry Ergonomics
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Solution Overview
Problem
Existing portable surface cleaning devices lack an efficient mechanism for delivering cleaning fluids and extracting debris from surfaces while being easy to carry and use, particularly for small areas like carpets and upholstery.
Innovation Solution
A portable surface cleaning apparatus with a fluid delivery system and a fluid recovery system, including a supply tank, recovery tank, and an air/liquid separator, designed for hand-carrying, which allows for effective application and extraction of cleaning fluids and debris, featuring a carry handle and optional components like pumps and heaters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a portable surface cleaning apparatus is designed with both fluid delivery and recovery systems in a single integrated unit, then cleaning functionality is improved, but device complexity and weight increase
Solution Approach 1:
The portable surface cleaning apparatus is divided into functionally independent modules: a fluid delivery system with supply tank and pump, a fluid recovery system with recovery tank and suction mechanism, and a common housing. These modules can be selectively assembled and disassembled, allowing users to configure the device based on specific cleaning needs while maintaining a compact portable form factor.
Solution Approach 2:
The common housing serves multiple functions by accommodating both the fluid delivery and recovery systems. The motor assembly provides dual functionality by operating both the pump for fluid delivery and the fan for fluid recovery through suction. This multi-functionality reduces overall device complexity while maintaining comprehensive cleaning capabilities.
2Productivity
If tank capacity is increased to improve cleaning efficiency, then productivity increases, but device weight and portability deteriorate
Solution Approach 1:
The apparatus employs selectively removable tanks rather than fixed large-capacity tanks. Users can attach only the necessary tank size for the specific cleaning task at hand, allowing the device weight to dynamically adjust based on productivity requirements. This enables portable operation for small areas while maintaining the option for extended cleaning capacity when needed.
Solution Approach 2:
The tanks are designed with vertical orientation and ergonomic handle integration, utilizing the vertical dimension for carry handle placement that distributes weight more effectively. The tanks can be positioned in different orientations and configurations within the common housing, optimizing the weight distribution and center of gravity for improved portability despite increased capacity.
3Productivity
If cleaning fluid temperature is maintained to improve cleaning performance, then cleaning efficiency increases, but energy consumption increases
Solution Approach 1:
The motor assembly serves dual purposes: it drives the pump for fluid delivery and simultaneously drives the fan for fluid recovery and heating. The motor's waste heat is utilized to warm the cleaning fluid through thermal conduction to the fluid supply tank, eliminating the need for a separate heating system and reducing overall energy consumption while maintaining effective cleaning temperature.
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 efficient and portable deep cleaning of surfaces by effectively delivering and recovering cleaning fluids and debris, improving usability and cleaning efficiency with the ability to maintain fluid temperature through motor-cooling air pathways.
Implementation Method 1
a source of suction in fluid communication with the conduit to draw the cleaning fluid from the surface to be cleaned and through the nozzle and the conduit to the recovery tank
Implementation Method 2
a heat transfer duct formed in part by the fluid supply tank and configured to receive motor-cooling air and transfer heat from the motor-cooling air to the fluid in the fluid supply tank
Data Source
AI summary
A portable surface cleaning apparatus for a floor surface includes a recovery tank and a supply tank separated by a partition, and further includes a carry handle defining a handle grip spaced above the supply and recovery tanks, wherein the handle grip does not intersect the supply tank or the recovery tank.