Vehicle Seat Wireless Charging with Obstacle-Safe Long-Range Power

Solution Overview

Problem

Existing wireless charging systems for vehicles face issues with power supply efficiency and passenger safety due to misalignment and distance limitations of magnetic induction methods, and frictional wear from contact-based power supply structures.

Innovation Solution

A long range wireless charging system using infrared, ultrasound, or electromagnetic waves to power a seat from a wireless charging module installed on the vehicle body, with a seat power receiving unit on the headrest that can swivel and slide freely, and obstacle detection to ensure passenger safety by interrupting power supply if a human body is detected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If magnetic induction method is used for wireless charging, then power can be supplied wirelessly to moving seats, but power supply efficiency decreases due to misalignment and distance limitations

Engineering Contradiction:

Improvewireless power supply to moving seatsVSAvoidpower supply efficiency

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The patent replaces contact-based mechanical power supply structures with wireless power transmission using electromagnetic waves. The transmitting unit is installed on the vehicle body while the receiving unit is installed on the seat, eliminating physical contact and frictional wear while maintaining power supply efficiency through wireless energy transfer

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an obstacle detection unit as an intermediary between the transmitting and receiving units. This detector identifies human bodies or objects on the power supply path and prevents harmful electromagnetic wave exposure by controlling the transmitting unit, thereby ensuring passenger safety while maintaining wireless power transmission efficiency

Inventive Principle:

Principle #24Intermediary (Mediator)

2Power

If contact-based power supply structure is used, then power can be supplied to seats, but frictional wear occurs reducing reliability

Engineering Contradiction:

Improvepower supply to seatsVSAvoidfrictional wear resistance

Core Design Contradiction:

PowerVSReliability

Solution Approach 1:

The patent replaces contact-based mechanical power supply structures with wireless power transmission using electromagnetic waves. The transmitting unit is installed on the vehicle body while the receiving unit is installed on the seat, eliminating physical contact and frictional wear while maintaining power supply efficiency through wireless energy transfer

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If wireless power signal is transmitted continuously, then charging efficiency is maintained, but passenger safety is compromised due to undetected obstacles

Engineering Contradiction:

Improvecharging efficiencyVSAvoidpassenger safety from electromagnetic waves

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an obstacle detection unit as an intermediary between the transmitting and receiving units. This detector identifies human bodies or objects on the power supply path and prevents harmful electromagnetic wave exposure by controlling the transmitting unit, thereby ensuring passenger safety while maintaining wireless power transmission efficiency

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The obstacle detection unit provides real-time feedback about the presence of human bodies or objects on the power supply path. Based on this feedback, the control unit adjusts the transmission of wireless power signals, interrupting transmission when obstacles are detected and resuming when the path is clear, thus balancing safety and charging efficiency

Inventive Principle:

Principle #23Feedback

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

Enables fully autonomous movement of seats within a vehicle while maintaining efficient power supply and preventing interference with passengers, allowing for seamless wireless charging of both seats and mobile devices over a long distance.

Implementation Method 1

a power transmitting unit installed on one side of a vehicle body which transmits a wireless power signal

Methodology Applied

Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

a seat power receiving unit installed on one side of a seat, which receives the wireless power signal from the power transmitting unit

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS20240405606A1Long range wireless charging system and charging method for vehicle

Publication Date: 2024.12.05 DAE WON SAN UP CO LTD

AI summary

The present disclosure relates to a long range wireless charging system for vehicle, and may include a wireless charging module including a power transmitting unit installed on one side of a vehicle body which transmits a wireless power signal and a seat power receiving unit installed on one side of a seat, which receives the wireless power signal from the power transmitting unit.