Vehicle Glass Heating Film Layout for Fog-Free Sensor Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing technologies for vehicle windshields face challenges in maintaining the sensing performance of devices due to freezing and fogging, especially when the heating film is constrained by non-rectangular shapes, leading to impaired heating distribution and device functionality.
Innovation Solution
A glass solution with a heating film attached to the interior side of the windshield, featuring a substrate with a heating element divided into multiple heating areas sharing a busbar, ensuring uniform heating and reducing the impact of shape constraints on heating distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a beating film is applied to an area where a device is placed on the interior side of the glass, then freezing and fogging of the glass are prevented, but the shape of the film is constrained and cannot be rectangular
Solution Approach 1:
The heating film is divided into multiple heating areas (first heating area, second heating area, third heating area) that can be configured in non-rectangular patterns to adapt to the constrained space around devices while maintaining effective heating coverage to prevent freezing and fogging
2Adaptability or versatility
If the shape of the film is non-rectangular, then the film can be applied to constrained areas, but the film cannot be uniformly heated and sensing performance is impaired
Solution Approach 1:
Different heating areas are designed with different configurations (first heating area with first busbar, second heating area with second busbar, third heating area with third busbar) to provide localized heating quality appropriate for different regions of the constrained space, ensuring uniform temperature distribution across the entire film area
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
This solution effectively prevents impairment of device sensing performance by ensuring consistent heating across non-rectangular shapes, reducing the variation in interpolar distances and enhancing heat distribution, thus addressing freezing and fogging issues.
Implementation Method 1
a heating element formed on the substrate, and a busbar connected to the heating element; the film has a heating zone divided into two or more heating areas
Data Source
AI summary
The present invention relates to glass for vehicles including a glass plate; an information transmitting/receiving area, defined in the glass, via which a device mounted in a vehicle transmits or receives information; and a film that heats the information transmitting/receiving area, the film being attached to an area overlapping the information transmitting/receiving area in an interior side of the glass plate in a vehicle in a planar view; wherein the film includes a substrate, a heating element formed on the substrate, and a busbar connected to the heating element; the film has a heating zone divided into two or more heating areas; and the two or more of the heating areas share at least one busbar and are connected in series.