Vehicle Lamp Ventilation Apparatus Moisture Control
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Solution Overview
Problem
Moisture formation on the light transmitting lens of vehicle lamp modules reduces optical efficiency and causes irregular light patterns due to water tracking, which existing solutions partially address with hydrophilic coatings but not effectively.
Innovation Solution
A ventilation apparatus with an intake hole and exhaust hole configuration, an exhaust pipe system, and sensors to control airflow, ensuring effective moisture removal and maintaining atmospheric pressure, using a filter to prevent foreign matter and water entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrophilic coating is applied to the light transmitting lens, then moisture is partially removed from the lens surface, but moisture formation is not effectively prevented and optical efficiency remains reduced
Solution Approach 1:
The patent extracts the moisture removal function from the light transmitting lens surface by introducing a separate ventilation system. The ventilation apparatus creates airflow that actively removes moisture from the lamp housing interior and prevents moisture deposition on the lens, separating the moisture management function from the optical surface.
Solution Approach 2:
The patent introduces air flow as an intermediary medium to prevent moisture formation on the lens. The ventilation system creates a continuous air flow that acts as a barrier between moisture sources inside the lamp housing and the light transmitting lens surface, preventing condensation without requiring direct contact with the lens surface.
2Reliability
If ventilation holes are added to the lamp housing, then moisture removal is improved, but foreign matter and water may enter the housing
Solution Approach 1:
The patent changes the operational parameters of the ventilation system by controlling the opening and closing of ventilation holes based on temperature and humidity conditions. The control unit adjusts the ventilation hole opening degree dynamically, opening them when moisture accumulation is detected and closing them when conditions are dry, optimizing both moisture removal and contamination prevention.
Solution Approach 2:
The patent implements a feedback control system using temperature and humidity sensors to monitor the interior environment of the lamp housing. The control unit receives sensor data and automatically adjusts the ventilation hole opening degree accordingly, creating a closed-loop system that responds to actual moisture conditions and prevents unnecessary openings that could allow foreign matter entry.
3Reliability
If ventilation apparatus is installed in the lamp module, then moisture formation on the lens is prevented, but the device complexity increases
Solution Approach 1:
The patent designs the ventilation apparatus to serve multiple functions within the lamp module. The ventilation holes and airflow system not only remove moisture from the lens surface but also regulate temperature inside the housing and prevent condensation, allowing a single system to address multiple environmental control needs without proportionally increasing complexity.
Solution Approach 2:
The patent merges the ventilation system with existing lamp module components. The ventilation holes are integrated into the lamp housing structure, and the control unit is combined with the existing lamp control system, reducing the need for separate dedicated components and minimizing the overall complexity increase.
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 moisture formation on the light transmitting lens by maintaining airflow and using sensors to control humidity and temperature, ensuring consistent light patterns and optical efficiency.
Implementation Method 1
ventilates the inside of a lamp of a vehicle
Implementation Method 2
an intake hole part formed through the lamp housing, and arranged at one side of the lamp; an exhaust hole part formed through the lamp housing
Data Source
AI summary
A ventilation apparatus of a lamp module for vehicles may include: a lamp housing; a lamp emitting light through a light transmitting part; a light transmitting lens covering an opening of the lamp housing; an intake hole part formed through the lamp housing, and arranged at one side of the lamp; an exhaust hole part formed through the lamp housing, and arranged at the other side of the lamp; and an exhaust pipe having one side coupled to the lamp housing and connected to the exhaust hole part and the other side connected to an intake part of an engine.