Thermo-Hygrostat Duct Layout for Uniform Chamber Climate
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Solution Overview
Problem
Thermo-hygrostat devices face challenges in maintaining uniform temperature and humidity within a chamber, leading to temperature deviations and non-uniform fluid flow, which affects the performance evaluation of samples like batteries.
Innovation Solution
The thermo-hygrostat device incorporates a chamber with a fluid circulation system that includes a lower duct, temperature and humidity control portion, fluid transfer portion, and upper ducts, allowing for the re-supply of fluid to the upper surface, which ensures uniform fluid flow and minimizes temperature deviations by using a cooler, hot air fan, and humidifier, along with a blower and communication holes to maintain predetermined temperature and humidity levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional fluid circulation system is used in the chamber, then the device structure is simple, but the fluid flow is non-uniform and temperature deviations occur
Solution Approach 1:
The fluid circulation system is segmented into multiple ducts (lower duct, first upper duct, second upper duct) with distinct functions. The lower duct introduces fluid at the bottom, the first upper duct circulates fluid along the upper surface, and the second upper duct discharges fluid through holes. This segmentation allows each duct to be optimized for its specific function, achieving uniform temperature distribution while maintaining manageable system complexity.
Solution Approach 2:
Different regions of the chamber are provided with different fluid circulation characteristics. The lower duct provides upward fluid introduction at the bottom region, the first upper duct provides horizontal fluid circulation at the upper surface region, and the second upper duct provides localized fluid discharge through holes. This local quality approach ensures that each region receives appropriate fluid flow characteristics to achieve overall temperature uniformity.
2Manufacturing precision
If fluid is supplied only at the lower part of the chamber, then the device structure is simple, but the flow speed is non-uniform across the chamber
Solution Approach 1:
The fluid circulation system transitions from single-point lower supply to a multi-dimensional distribution network. The lower duct supplies fluid upward from the bottom dimension, the first upper duct distributes fluid horizontally along the upper surface dimension, and the second upper duct disperses fluid vertically through holes. This dimensional transition creates uniform flow speed distribution across the entire chamber space.
3Volume of stationary object
If the chamber volume is large, then the sample evaluation capacity is improved, but the temperature control precision decreases
Solution Approach 1:
The large chamber volume is managed by segmenting the fluid circulation into multiple ducts that distribute coolant throughout the entire space. The lower duct covers the bottom region, the first upper duct covers the upper surface region, and the second upper duct provides localized cooling through holes. This segmentation ensures that even in a large chamber volume, temperature control precision is maintained by providing distributed cooling coverage.
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 ensures smooth fluid flow in all areas of the chamber, maintains uniform flow speed, and minimizes temperature deviations, allowing for consistent temperature and humidity control even when the sample's temperature changes, thereby accurately evaluating the performance of samples like batteries.
Implementation Method 1
a cooler supplying cold air into the chamber... such a cooler may include an evaporator, a condenser
Implementation Method 2
such a cooler may include an evaporator, a condenser, a pump, a valve
Implementation Method 3
a hot air fan supplying warm air into the chamber... The hot air fan of the thermo-hygrostat device supplies warm air generated from a heating wire
Implementation Method 4
The humidifier heats water to generate water vapor to control humidity in the chamber
Implementation Method 5
the blower may send a fluid received from the temperature and humidity control portion upward through the communication hole
Data Source
AI summary
Designs of thermo-hygrostat devices capable of uniformly maintain temperature and humidity inside a chamber are disclosed. One example of such a device can include, among others, a chamber in which a sample is accommodated and internal temperature and humidity can be controlled; a lower duct provided on a first side of the chamber and sending a fluid inside the chamber to an outside of the chamber; a temperature and humidity control portion provided on the lower duct and controlling temperature and humidity of a fluid received from the lower duct.