Automotive Ionizer Water Drainage Rib
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air conditioning systems for automotive vehicles experience electric shorts and discharge noise due to moisture condensation around discharge electrodes, leading to spark generation between the first and second discharge electrodes.
Innovation Solution
Incorporation of a water drainage rib or isolation baffle to drain condensed moisture away from the discharge electrodes, preventing the formation of a water film and thus avoiding electric shorts and discharge noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ionizer is installed in the internal passageway to generate ions for sterilization and deodorization, then the cleanliness and comfort of the vehicle room environment is improved, but moisture condensation occurs around the discharge electrodes causing electric short and discharge noise
Solution Approach 1:
The internal passageway is divided into a first passageway for air intake and a second passageway for air discharge, with the ionizer installed in the first passageway. This segmentation separates the ion generation zone from the evaporator outlet zone, allowing moisture to be discharged away from the discharge electrodes while maintaining ionization functionality for sterilization and deodorization.
Solution Approach 2:
A partition wall is introduced as an intermediary structure between the first and second passageways. This partition wall directs the flow of ionized air away from the discharge electrodes and toward the evaporator outlet, preventing moisture condensation from causing electric short while maintaining the beneficial ionization effects in the vehicle room.
2Productivity
If high voltage pulses are applied to the discharge electrodes to generate ions, then sterilization and deodorization effectiveness is improved, but spark generation and discharge noise occur due to electric short through condensed moisture
Solution Approach 1:
The partition wall is designed to preemptively redirect ionized air flow before moisture can accumulate around the discharge electrodes. By establishing this flow direction in advance, the system prevents the formation of conductive water films that would cause electric short, sparks, and discharge noise, while maintaining high ion generation efficiency through continuous high voltage pulse application.
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
The solution effectively prevents electric shorts and discharge noise, enhancing driving comfort by ensuring reliable operation of the air conditioning system.
Implementation Method 1
The first and second discharge electrodes 46 and 48 are designed to generate negative ions and positive ions by irradiating high voltage pulses into the air flowing through the internal passageway 16
Implementation Method 2
moisture is condensed in and around the first and second discharge electrodes 46 and 48 of the ionizer 40
Implementation Method 3
a water drainage rib 52 for draining the moisture condensed in and around the first and second discharge electrodes to prevent the electric short between the first and second discharge electrodes
Data Source
AI summary
An air conditioning system for automotive vehicles includes an air conditioning case having an internal passageway and an ionizer for emitting positive ions and negative ions into the internal passageway of the air conditioning case. The ionizer includes a main body and first and second discharge electrodes extending from the main body into the internal passageway in a spaced-apart relationship with each other. The air conditioning system further includes an electric short preventing arrangement for preventing moisture positioned in and around the first and second discharge electrodes from causing electric short between the first and second discharge electrodes. The electric short preventing arrangement comprises a water drainage rib for draining the moisture condensed in and around the first and second discharge electrodes to prevent the electric short between the first and second discharge electrodes.