Vehicle Radome Heating Control for Ice Removal Without Overheating
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Solution Overview
Problem
Existing radomes for vehicles face challenges in efficiently removing ice or snow without compromising the integrity of the radome, as current heating systems often require external control and may lead to overheating, affecting radar performance and safety.
Innovation Solution
A radome with an integrated thermal control and switch system that autonomously manages heating, using a thermistor to detect temperature and adjust power delivery to the heater, ensuring operation within safe temperature ranges without external intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heater is positioned at the outer front surface of the radome, then the melting efficiency of ice or snow is improved, but the aesthetic appearance deteriorates due to visible heating elements
Solution Approach 1:
The heating function is extracted from the visible outer surface and relocated to internal layers of the radome. The heater is positioned behind the decorative emblem layer, separating the aesthetic function (visible emblem) from the functional function (heating), thereby maintaining visual appeal while preserving ice/snow melting capability
Solution Approach 2:
The heating system is nested within the multi-layer radome structure. The radome comprises multiple layers including a decorative emblem layer and internal heating layers, with the heater embedded within these internal layers. This nested arrangement allows the heater to be hidden within the radome's internal structure while still effectively heating the outer surface to melt ice or snow
2Shape
If the heater is positioned in internal layers of the radome, then the aesthetic appearance is improved, but the temperature required for melting increases, potentially damaging the plastic material
Solution Approach 1:
A temperature sensor is integrated into the heating system to provide real-time feedback on the temperature of internal radome layers. This feedback mechanism allows the system to monitor and control the temperature, ensuring it remains below the damage threshold for plastic materials while still achieving sufficient heat transfer to the outer surface for effective ice/snow melting
Solution Approach 2:
The patent introduces a temperature sensor as an intermediary element between the heater and the control system. This sensor acts as a mediator that continuously monitors the temperature conditions within the radome structure and enables precise thermal management, preventing overheating of plastic layers while maintaining aesthetic appearance through internal heater positioning
3Measurement precision
If external control units are used to manage the heating system, then the thermal control precision is improved, but the device complexity increases
Solution Approach 1:
The control functions are merged with the radome structure itself. The temperature sensor and heating elements are integrated directly into the radome layers, and the control logic is embedded within this integrated structure rather than being separated in an external control unit. This merging reduces the number of discrete components and simplifies the overall system architecture while maintaining precise thermal control
Solution Approach 2:
The radome heating system is designed to be self-regulating through the integration of temperature sensors and heating elements within the same structure. The system can autonomously monitor its own temperature conditions and adjust heating accordingly, eliminating the need for complex external control units and achieving precise thermal control through self-service mechanisms
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 system effectively melts ice or snow while maintaining radome integrity by optimizing temperature control, reducing melting time, and ensuring consistent radar performance without external control units.
Implementation Method 1
They heat the surrounding material until the outer front surface reaches a temperature able to melt the ice or snow
Implementation Method 2
reach a temperature able to melt the ice or snow and remove the resulting water from it
Implementation Method 3
using a thermistor to detect temperature and adjust power delivery to the heater
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The radome (1) for vehicles comprises a decoration layer (17), a transparent front layer (19), and a heater (15) that heats the transparent front layer (19), wherein the radome (1) also comprises a thermal control (11) and a switch (13), so that the switch (13) switches on or switches off the heater (15) according to the temperature detected by the thermal control (11). It permits to provide a radome for vehicles that offers a degree of autonomy in the management of the heating without the need of external actions, optimizing the process of removing the ice or snow while maintaining the integrity of the radome.