Carbon Nanotube Heating Element for Vehicle Ice Melting

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Solution Overview

Problem

Winter weather conditions often result in ice and snow covering windshields and ground areas near motor vehicles, posing safety risks due to reduced visibility and slippery surfaces when entering the vehicle.

Innovation Solution

A heat generating system utilizing a carbon nanotube heating element, activated by a remote wireless signal, is integrated into a motor vehicle to direct infrared radiation towards the windshield and ground areas, effectively melting ice and snow, and can also warm the passenger compartment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional heating systems are used to heat the windshield and ground area, then ice and snow can be melted, but the system complexity and energy consumption increase significantly

Engineering Contradiction:
Improveice and snow accumulationVSAvoidheating system complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent changes the physical state and form of the heating element from conventional bulky resistive heating elements to carbon nanotube-based flexible heating films. This parameter change enables the heating element to be integrated into thin, flexible structures such as windshield layers and ground mat configurations, dramatically reducing system complexity while maintaining effective heating capability for melting ice and snow.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs carbon nanotube composite materials that combine the heating function with flexible substrate materials. These composite materials allow the heating element to be integrated into multi-layer windshield structures and flexible ground mats, reducing the need for separate heating system components and simplifying the overall system architecture.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If conventional heating elements are used to melt ice and snow on ground and windshield, then visibility and traction improve, but energy consumption increases

Engineering Contradiction:
Improvereduced visibility and slippery surfacesVSAvoidenergy consumption for heating
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent utilizes the exceptional electrical and thermal properties of carbon nanotubes, which enable efficient energy conversion and heat distribution. The nanotube structure provides high electrical conductivity and uniform heat generation with lower power requirements compared to conventional heating elements, reducing overall energy consumption while effectively melting ice and snow.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The flexible heating elements can be precisely positioned and configured to provide localized heating only where ice and snow accumulation occurs most problematically. This targeted approach, enabled by the flexibility and conformability of carbon nanotube heating films, reduces energy waste by concentrating heating power only in critical areas rather than heating entire surfaces uniformly.

Inventive Principle:
Principle #3Local quality

3Reliability

If heating elements are integrated into vehicle structures, then heating effectiveness improves, but manufacturing complexity increases

Engineering Contradiction:
Improveheating effectivenessVSAvoidintegration manufacturing difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs thin-film carbon nanotube heating elements that can be laminated or bonded onto existing vehicle structures such as windshields and ground surfaces. This thin-film approach allows integration during standard manufacturing processes without requiring complex structural modifications, maintaining ease of manufacture while achieving effective heating performance.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The carbon nanotube heating elements serve multiple functions: they provide heating for ice and snow melting, can be integrated into various vehicle components (windshield, ground mats, seat surfaces), and maintain flexibility for different installation configurations. This multi-functionality reduces the need for specialized manufacturing processes for different heating applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 provides clear visibility by defogging and melting ice on the windshield, improves foot traction by melting snow on the ground, and enhances passenger comfort by preheating the vehicle before entry.

Implementation Method 1

The carbon nanotube heating element may be carried on the motor vehicle adjacent a rocker panel and oriented to direct infrared radiation (IR-radiation) upon an area of the ground adjacent a door of the motor vehicle in order to melt ice and snow.

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Implementation Method 2

a carbon nanotube heating element and a controller configured to activate the carbon nanotube heating element

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 3

oriented to direct infrared radiation (IR-radiation) upon an area of the ground adjacent a door of the motor vehicle in order to melt ice and snow

Methodology Applied
Scientific EffectMelting: Melting

Data Source

PatentUS10616957B2Heat generating system for a motor vehicle
Publication Date: 2020.04.07 FORD GLOBAL TECH LLC
  • US10616957B2 patent drawing
  • US10616957B2 patent drawing
  • US10616957B2 patent drawing

AI summary

A heat generating system for a motor vehicle includes a carbon nanotube heating element and a controller. The controller is configured to activate the carbon nanotube heating element in response to a wireless activation signal received from a remote communication device. A related method of heating a passenger compartment of a motor vehicle is also disclosed.