Single-Pump Water Distribution for Multi-Function Walk-In Tub
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Solution Overview
Problem
Current walk-in bathtubs require separate pumps for each function such as whirlpool, micro nano bubbles, and rapid water discharge, which are expensive and lack sufficient space for installation under the bathtub.
Innovation Solution
A reconfigurable water distribution system utilizing a single pump and a network of pipes with motorized valves allows for the operation of multiple functions, including water jets, micro-nano bubbles, and rapid water discharge, by selectively routing water flow through the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate pumps are used for each function (whirlpool, micro nano bubbles, rapid water discharge), then each function can operate independently and reliably, but the system becomes expensive and requires more installation space
Solution Approach 1:
The patent implements a single pump system that performs multiple functions (whirlpool, micro nano bubbles, and rapid water discharge) through a reconfigurable water distribution network with motorized valves. The pump is designed with multiple suction and discharge ports that can be selectively connected to different functions via motorized valves, allowing one pump to replace what would traditionally require three separate pumps.
2Power
If separate pumps are used for each function, then each function has dedicated pumping capacity, but the installation space requirement increases significantly
Solution Approach 1:
The patent merges multiple pumping functions into a single pump unit with integrated valve control. The pump housing incorporates multiple ports and internal passages that allow it to serve whirlpool, micro nano bubbles, and rapid water discharge functions simultaneously or sequentially, consolidating what would be three separate pump installations into one compact unit.
Solution Approach 2:
The system uses motorized valves that can dynamically reconfigure the water distribution paths based on the selected function. The valves are controlled by a microprocessor that receives user input and automatically positions the valves to route water flow appropriately, allowing the single pump to adapt its output to different functional requirements in real-time.
3Device complexity
If a single pump is used for multiple functions, then space and cost are reduced, but the system requires complex valve control mechanisms
Solution Approach 1:
The system is designed to automatically control the motorized valves based on user selection of the desired function. The microprocessor controller monitors the selected mode and autonomously positions the valves to configure the water distribution network appropriately, eliminating the need for manual valve adjustment and simplifying user interaction to merely selecting the desired function.
Solution Approach 2:
The control system incorporates feedback mechanisms where the microprocessor monitors the operational state and user selections, then automatically adjusts the valve positions to maintain the correct configuration for the selected function. This closed-loop control ensures the system responds accurately to user input and maintains proper operation across different functions.
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 system effectively reduces the number of pumps needed, saving space and cost, while maintaining the functionality of multiple therapeutic features in walk-in bathtubs.
Implementation Method 1
a reconfigurable water distribution system (50) which provides a plurality of functions with a single pump (30)
Implementation Method 2
The tub installation includes a network of pipes (60-1-60-9), a single pump (30) and motorized valves (64-1-64-3)
Data Source
AI summary
A reconfigurable water distribution system for a walk-in tub bathing installation including two or more types of discharge ports for discharging water. The system includes a single motorized pump having an input connected to a suction port of the bathing installation, and an output port delivering pressurized water. A pipe system selectively connects the pump to the two or more types of discharge ports to selectively direct the pressurized water to the different ones of the types of discharge ports. The system selectively enables the bathing installation to perform a plurality of different functions using a single pump.