Thermoelectric Cooling and Capillary Moisture Transfer for Vehicle Displays
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Solution Overview
Problem
Electronic components, such as dashboard displays in vehicles, are vulnerable to humidity and temperature fluctuations, leading to issues like short circuits and maintenance challenges with traditional protective methods like coatings and absorbents.
Innovation Solution
An apparatus incorporating a thermoelectric cooling unit, capillary unit, and sensor system that controls humidity and temperature within a housing by condensing moisture and transferring it outside, using a controller to adjust conditions based on sensed thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coating is applied to protect electronic components from moisture, then protection from humidity is improved, but cost and maintenance difficulty increase
Solution Approach 1:
The patent extracts the moisture protection function from the electronic component itself by introducing a separate desiccant system. The desiccant is placed in the housing to absorb moisture, eliminating the need for protective coatings on the component while providing reliable humidity control through a maintainable alternative.
Solution Approach 2:
The patent introduces a desiccant as an intermediary substance between the external environment and the electronic component. This mediator absorbs moisture in the housing, protecting the component without requiring direct contact or coating, thereby simplifying maintenance while maintaining reliability.
2Reliability
If an absorbent is used to remove excessive moisture, then humidity control is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent implements a self-service moisture control system where the desiccant automatically absorbs excessive humidity without requiring active control or frequent maintenance. The system only requires periodic replacement when the desiccant becomes saturated, eliminating complex monitoring and control mechanisms while maintaining reliable humidity control.
3Reliability
If traditional protective methods are used, then component protection is improved, but cost increases
Solution Approach 1:
The patent employs a disposable desiccant that can be periodically replaced at low cost. This approach substitutes expensive and difficult-to-maintain protective coatings with an inexpensive consumable item that provides reliable protection through simple replacement, significantly reducing overall system cost while maintaining component protection.
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
Effectively maintains optimal humidity and temperature levels, preventing foggy displays and ensuring the electronic components operate properly with reduced maintenance needs.
Implementation Method 1
The TEC unit is configured to collect moisture in the housing (e.g., by lowing its temperature such that the moisture in the housing condenses and transforms into liquid thereon)
Implementation Method 2
a capillary unit coupled to the TEC unit and configured to collect and transfer moisture therefrom
Data Source
AI summary
The present disclosure relates to apparatuses/systems and associated methods for controlling an environmental condition inside a container or housing. The apparatus includes (1) a thermoelectric cooling unit having a first side facing away from an inner surface of the housing and a second side facing the inner surface of the housing; (2) a capillary unit having a first part and a second part; and (3) a sensor positioned inside the housing and configured to sense a humidity value and a temperature value inside the housing. The first part is coupled to the thermoelectric cooling unit and is positioned inside the housing. The second part is positioned outside the housing. If the humidity value is greater than a humidity threshold and the temperature value is greater than a temperature threshold, the thermoelectric cooling unit removes moisture in the housing, and the first part of the capillary unit collects the removed moisture and transmits the removed moisture to the second part of the capillary unit.