Switch Valve Cool Water Discharge Thermosensitive Module
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Solution Overview
Problem
Existing shower systems require manual operation to discharge residual cool water, which can result in users feeling cold or scalded, and existing solutions with multiple temperature sensing elements and pistons are costly and complex when dealing with multiple water passages.
Innovation Solution
A switch valve with a thermosensitive module that uses a discharging hole and air suction hole to rapidly discharge cool water from both passages simultaneously, employing a Venturi effect to absorb residual cool water and a check valve for sealing, with a single thermosensitive module to control the discharge based on temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a constant temperature water economizer with temperature sensing element and constant temperature piston is used for one water passage, then the water temperature can be stabilized, but the structure becomes complicated and cost increases when applied to multiple water passages
Solution Approach 1:
The patent merges the temperature control functions for multiple water passages into a single integrated switch valve body. Instead of using separate temperature sensing elements and constant temperature pistons for each passage, one thermosensitive module controls the discharge of cool water from both passages simultaneously through a shared cool water discharging passage, reducing structural complexity while maintaining temperature stability.
Solution Approach 2:
The switch valve body performs multiple functions: it serves as both the valve structure and the cool water discharging device. The single thermosensitive module universally controls the temperature for both water passages by regulating the cool water discharge, making the system more compact and cost-effective while maintaining reliable temperature control.
2Loss of substance
If manual operation mode is used to discharge cool water by switching valve to flow warm water, then the cool water can be discharged, but users may feel cold or be scalded by touching water to test temperature
Solution Approach 1:
The system performs self-service temperature control through the thermosensitive module that automatically detects water temperature and controls the discharge of cool water accordingly. This eliminates the need for manual temperature testing by users, preventing cold or scalding sensations while efficiently discharging residual cool water from the passages.
3Temperature
If two sets of temperature sensing element and constant temperature piston are installed in switch valve for two water passages, then each passage can be controlled independently, but the size of valve enlarges and functional elements increase
Solution Approach 1:
The patent combines the temperature control mechanisms for two water passages into a single integrated system. One thermosensitive module controls the discharge of cool water from both passages through a shared cool water discharging passage, significantly reducing the valve size and number of functional elements while maintaining effective temperature control for both passages.
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 automatic discharge of cool water from both passages without user intervention, reducing water waste and temperature testing, while maintaining a compact and cost-effective structure with fewer functional components.
Implementation Method 1
a thermosensitive module disposed in the valve body... The thermosensitive module is used to open and close the discharging hole
Implementation Method 2
water flows to the cool water discharging passage through the inlet passage, suction force generated by the water flowing to the cool water discharging passage causes the residual cool water in the second outlet passage-to move into the cool water discharging passage through the air suction hole
Implementation Method 3
water flowing through the discharging hole mixes with the residual cool water in the first outlet passage to exhaust out from the outlet of the first outlet passage
Implementation Method 4
a check valve used to open and close the second outlet passage is provided movably in the second outlet passage, the check valve opens the second outlet passage by the driving of the suction force
Data Source
AI summary
A cool water discharging method and a switch valve includes a valve body and a valve spool. The valve body is disposed with a thermosensitive module, an inlet passage, a first outlet passage, and a second outlet passage. The valve body has a cool water discharging passage connected to the inlet passage, a discharging hole connecting the first outlet passage and the cool water discharging passage and an air suction hole connecting the second outlet passage and the cool water discharging passage. When discharging cool water, water flows to the cool water discharging passage rapidly, the air in the second outlet passage is absorbed to the cool water discharging passage. The residual cool water in the second outlet passage is absorbed to the cool water discharging passage through the air suction hole and discharged out with the residual cool water in the first outlet passage.