Pressure Regulator Venting With Moisture Blocking for Dew Control
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Solution Overview
Problem
Dew condensation occurs inside electrification components of eco-friendly vehicles due to temperature and pressure changes, posing a risk to their operation.
Innovation Solution
A pressure regulator with a fan and filter system that discharges gas from the component while blocking moisture inflow, controlled by a controller to predict and prevent dew condensation using sensors and variable fan speed regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas is discharged from the component to prevent dew condensation, then dew condensation prevention is improved, but moisture from the outside may infiltrate inside the component
Solution Approach 1:
A filter is introduced as an intermediary component between the inside and outside of the component. The filter allows gas to pass through while blocking moisture, serving as a mediator that enables beneficial gas discharge while preventing harmful moisture infiltration.
Solution Approach 2:
A membrane film is used as a selective barrier that allows gas molecules to pass through while blocking larger moisture molecules. The membrane film's selective permeability properties enable differential transmission based on molecular size and properties.
2Reliability
If a filter and fan system is added to the pressure regulator, then dew condensation prevention capability is improved, but device complexity increases
Solution Approach 1:
The pressure regulator is designed to perform multiple functions: pressure regulation, gas discharge, and dew condensation prevention. By integrating these functions into a single device, the overall system complexity is reduced compared to having separate components for each function.
Solution Approach 2:
The filter, fan, and pressure regulator are merged into a single integrated device. This combination eliminates the need for separate components and reduces the overall complexity of the system while achieving multiple objectives simultaneously.
3Reliability
If fan rotation speed is increased to enhance gas discharge, then dew condensation removal efficiency is improved, but energy consumption increases
Solution Approach 1:
The fan rotation speed is made dynamic rather than fixed. The controller adjusts the fan speed based on real-time conditions inside the component, allowing the system to use higher speeds only when necessary for dew condensation removal and lower speeds during normal operation, thereby optimizing energy consumption.
Solution Approach 2:
A sensor provides feedback about the internal environment of the component to the controller, which then adjusts the fan speed accordingly. This feedback mechanism ensures the fan operates at the minimum necessary speed to maintain dew-free conditions, avoiding unnecessary energy consumption.
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 prevents dew condensation by predicting and addressing its causes through controlled gas discharge, maintaining component integrity and performance.
Implementation Method 1
The fan may be provided so that an airflow from the inside of the component toward the outside of the component is formed by rotation of the fan.
Implementation Method 2
a filter provided inside the case and configured to allow gas to be discharged from inside of the component to outside of the component while blocking inflow of moisture from the outside of the component to the inside of the component
Implementation Method 3
the filter may include a membrane film
Data Source
AI summary
A pressure regulator and a method for regulating the same is for predicting occurrence of dew condensation inside components of a vehicle so that the cause of the occurrence of dew condensation is removed in advance before occurrence of dew condensation. The pressure regulator includes a case in which an opening is provided at one end of the case, an outlet is provided at the other end of the case, and the opening is provided to be inserted into a housing of the component, a fan provided inside the case and a filter provided inside the case, the filter allowing gas to be discharged from the inside of the component to the outside of the component while blocking inflow of moisture from the outside of the component to the inside of the component.