Sensor Glazing Coating Layout for Uniform Heating and Data Traffic
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Solution Overview
Problem
Existing glazings for multiple sensors suffer from non-uniform heat distribution and inadequate data traffic capabilities, necessitating an improved design for heating and communication with sensors.
Innovation Solution
A glazing design featuring a conductive coating with an asymmetric permeable area and strategically positioned auxiliary busbars, including a lower auxiliary busbar and side auxiliary busbars, to achieve uniform heat distribution and enable data traffic for sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a symmetrical coating-free area is provided for sensors, then sensor alignment is simplified, but heat distribution becomes non-uniform
Solution Approach 1:
The patent applies asymmetry by intentionally designing the permeable area with an asymmetric shape including a protrusion, and positioning auxiliary busbars asymmetrically (with side auxiliary busbars at the side edge of the imaginary symmetrical region and a lower auxiliary busbar at the lower edge). This asymmetric configuration compensates for the non-uniform heat distribution caused by the coating-free zone, achieving overall uniform heat distribution while maintaining sensor alignment capability.
2Reliability
If a coating-free zone is created for sensor data traffic, then electromagnetic radiation transmission is enabled, but electrical resistance increases
Solution Approach 1:
The patent segments the conductive coating into multiple sections by introducing auxiliary busbars that connect to the main conductive coating at strategic points. The coating is divided into a first section between the first busbar and the permeable area, and a second section between the permeable area and the second busbar, with auxiliary busbars providing additional connection points. This segmentation allows the system to maintain low electrical resistance while accommodating the coating-free zone for sensor data traffic.
Solution Approach 2:
The auxiliary busbars act as intermediary elements that bridge the gap created by the permeable area. These auxiliary busbars are positioned at the edge of the permeable area and electrically connect the conductive coating sections on either side, mediating the electrical connection across the coating-free zone and minimizing the increase in electrical resistance while enabling sensor data traffic.
3Temperature
If auxiliary busbars are positioned at the edge of the permeable area, then heat distribution is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs asymmetric positioning of auxiliary busbars to achieve uniform heat distribution. The side auxiliary busbars are positioned at the side edge of the imaginary symmetrical region rather than at the protrusion, and the lower auxiliary busbar is positioned at the lower edge. This asymmetric configuration creates a more uniform heat distribution pattern while the manufacturing process remains relatively straightforward using standard coating and deposition techniques.
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 design ensures homogeneous heat distribution and effective data transmission, meeting industrial requirements for defogging and defrosting vehicle windows, particularly in autonomous vehicles and advanced driver assistance systems.
Implementation Method 1
a conductive coating (2) on part of a surface (S1) of the glass sheet (1)
Data Source
AI summary
A glazing for plural sensors, comprising a glass sheet, a conductive coating on part of the glass sheet surface, first and second busbars providing voltage to the conductive coating, a permeable area between the first busbar and part of the conductive coating, auxiliary busbars at an edge of the permeable area and in electrical contact with the conductive coating, and at least one supply line in the permeable area connecting at least one auxiliary busbar to the first busbar. A lower auxiliary busbar of the auxiliary busbars is at a lower edge of the permeable area. The permeable area has an asymmetric shape, comprising an imaginary symmetrical region and a protrusion) protruding from a side edge of the imaginary symmetrical region, and at least one side auxiliary busbar of the auxiliary busbars is at a part of the side edge of the imaginary symmetrical region lower than the protrusion.