Thermostat Force Transmission Integration
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Solution Overview
Problem
Existing thermostatic valves for water supply installations are complex and costly due to multiple components, which complicates manufacture and reduces their ability to fit into smaller spaces, and the clamping mechanism can impede fluid flow and increase the size of the thermostat, leading to reduced performance and increased forces required for return strokes.
Innovation Solution
A thermostat design featuring a hollow body with a thermally responsive material and a force transmitting member affixed to the sidewall, eliminating the need for a clamping mechanism and allowing for improved fluid flow and heat transfer, potentially reducing the size and complexity by integrating overload and return devices within the thermostat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping mechanism is used to secure the force transmitting member, then the thermostat structure is stabilized, but the fluid flow is impeded and the thermostat size increases
Solution Approach 1:
The patent removes the clamping mechanism entirely from the thermostat design. Instead of clamping the force transmitting member to the body, the member is integrated directly into the body structure, eliminating the harmful collar that obstructs fluid flow while maintaining structural stability through the integrated design.
Solution Approach 2:
The force transmitting member is merged with the thermostat body through direct integration rather than separate clamping components. This merging eliminates the need for a distinct clamping mechanism and its associated collar, allowing unobstructed fluid flow over the entire surface of the thermostat body while maintaining structural integrity.
2Adaptability or versatility
If multiple separate components are used in the thermostatic valve, then each component can be optimized independently, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent combines multiple previously separate components into integrated structures. The force transmitting member is integrated with the thermostat body, and the overload device is incorporated within the thermostat assembly rather than as a separate component, reducing manufacturing complexity and assembly steps while maintaining the ability to optimize each functional element.
Solution Approach 2:
The thermostat body serves multiple functions simultaneously: it contains the thermally responsive material, provides the force transmitting member attachment, incorporates the overload device, and eliminates the need for separate clamping mechanisms. This multi-functionality reduces the total number of components and simplifies manufacturing.
3Reliability
If the thermostat size is increased to accommodate clamping mechanisms, then structural stability is improved, but the ability to fit into smaller spaces is reduced
Solution Approach 1:
The patent extracts and removes the clamping mechanism that previously required additional space. By eliminating this external clamping structure, the thermostat can be reduced to a more compact size while maintaining structural stability through the integrated force transmitting member design.
Solution Approach 2:
By merging the force transmitting member with the thermostat body and eliminating separate clamping components, the overall volume of the thermostat is reduced. The integrated design allows the thermostat to fit into smaller spaces while maintaining structural integrity through the unified construction.
4Reliability
If a collar is provided to clamp two parts of the thermostat body, then the force transmitting member is secured, but the smooth flow of fluid is prevented and heat transfer is reduced
Solution Approach 1:
The patent removes the collar that previously clamped the two parts of the thermostat body together. This extraction eliminates the obstruction to fluid flow and the barrier to heat transfer, allowing fluid to flow smoothly over the entire surface of the thermostat body for improved thermal coupling.
Solution Approach 2:
The force transmitting member is merged with the thermostat body through direct integration, eliminating the need for a collar to secure it. This merging creates a smooth, continuous surface that allows unobstructed fluid flow and maximizes heat transfer efficiency between the fluid and the thermally responsive material.
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
This design enhances the thermostat's responsiveness to temperature changes, improves heat transfer, and increases robustness, allowing for reduced hysteresis and potentially eliminating the need for separate springs, resulting in a more efficient and compact temperature control system.
Implementation Method 1
The thermostat 108 contains a thermally responsive material such as wax that expands in response to an increase in fluid temperature and contracts in response to a decrease in fluid temperature flowing over the thermostat 108 in the mixing chamber 106.
Data Source
AI summary
A thermostat comprises a hollow body containing a thermally responsive material, and a force transmitting member affixed to the body by an over-molded portion.