Vehicle Lamp Holder Heating for Condensed Water Removal
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Solution Overview
Problem
Condensed water on the inner surface of a vehicle lamp's cover lens affects the brightness and visual appearance of emitted light due to temperature differences between the lamp's interior and exterior.
Innovation Solution
A holder with embedded heating wires heats the cover lens's operating section, creating an air gap to evaporate condensed water, ensuring effective removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the holder is mounted close to the operating section of the cover lens, then the structural stability is improved, but condensed water forms between the holder and the cover lens affecting light brightness
Solution Approach 1:
The holder front side is positioned at a distance from the operating section of the cover lens, creating an air gap that introduces a new spatial dimension. This air gap prevents condensed water from forming between the holder and cover lens, thereby maintaining light brightness while the holder remains structurally stable through its mounting on the opaque section.
2Illumination intensity
If heating wires are embedded in the holder, then condensed water is evaporated and light brightness is improved, but energy consumption increases
Solution Approach 1:
The heating wires embedded in the holder convert the harmful effect of condensed water into a beneficial evaporation process. By applying heat, the condensed water is evaporated and removed through the air gap, restoring light brightness. The energy consumption is justified by the restoration of optical performance.
3Reliability
If the holder front side is positioned at a distance from the operating section, then condensed water can be evaporated effectively, but the device complexity increases
Solution Approach 1:
The air gap is created only in the specific local area where condensed water forms between the holder front side and the operating section of the cover lens. This localized approach allows effective evaporation of condensed water without requiring complex device modifications throughout the entire lamp structure.
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
Enhances light brightness and maintains consistent light distribution by preventing water condensation on the lens surface.
Implementation Method 1
at least a part of the front side of the holder is arranged at a distance to the operating section of the cover lens, so that an air gap is formed, in order to enable the removal of condensed water formed between the operating section and the front side of the holder by evaporating the condensed water by means of the at least one heating wire
Implementation Method 2
the holder comprises at least one heating wire embedded within the holder, wherein the heating wire is configured to heat the operating section of the cover lens
Data Source
Figure 1
AI summary
Vehicle lamp (10), wherein the vehicle lamp (10) comprises: - a light guide (100), - a cover lens (200) having an operating section (210) for the light guide (100) to illuminate an environment outside of the vehicle lamp (10), and an opaque section (220) delimiting the operation section (210), - a holder (300) for holding the light guide (100), the holder (300) comprises a front side (300a) facing the operating section (210) of the cover lens (200), wherein the holder (300) is mounted on the cover lens (200), wherein the holder (300) comprises at least one heating wire (500) embedded within the holder (300), wherein the heating wire (500) is configured to heat the operating section (210) of the cover lens (200), wherein the holder (300) is mounted on the opaque section (220) in a way to allow the at least one heating wire (500) to heat the operating section (210) of the cover lens (200), wherein at least a part of the front side (300a) of the holder (300) is arranged at a distance to the operating section (210) of the cover lens (200), so that an air gap (AG) is formed, in order to enable the removal of condensed water evaporated by the at least one heating wire (500).