Vehicle Seat Wireless Power Layout for Detachable Mounting

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Solution Overview

Problem

Conventional vehicle seat devices with wireless power supply mechanisms face challenges in easily attaching and detaching the occupant seat with electrical components, as the relative positional relationship between the power transmitting and receiving units changes with seat movement, affecting power transmission, and require direct wire connections which complicate installation and detachment.

Innovation Solution

A seat device with a detachable support member attached to the vehicle floor, featuring a wireless power supply mechanism where the power receiving unit is fixed to the support member rather than the seat, allowing for easy attachment and detachment without direct wire connections and maintaining a stable power transmission relationship even when the seat moves.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the power receiving unit is attached to the occupant seat, then the occupant seat can move with respect to the floor, but the relative positional relationship between the power transmitting unit and the power receiving unit changes, affecting power transmission

Engineering Contradiction:
Improvemovability of occupant seatVSAvoidpower transmission stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The support member acts as an intermediary between the floor and the occupant seat. The power receiving unit is attached to the support member instead of directly to the occupant seat, allowing the seat to move while maintaining a stable power transmission interface through the support member's connection to the floor

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If floor harness and wire harness are connected directly, then electric power can be supplied to the electrical component, but the occupant seat cannot be easily attached to and detached from the floor

Engineering Contradiction:
Improvepower supply connectionVSAvoidattachment and detachment operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The mechanical wire harness connection system is replaced with a wireless power transmission system. The wireless power supply mechanism eliminates the need for physical cable connections between the floor and the occupant seat, allowing easy attachment and detachment while maintaining power supply capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 easy attachment and detachment of the occupant seat with electrical components, reduces the need for wire harnesses, and ensures reliable power transmission without positional changes, enhancing flexibility and reducing installation costs.

Implementation Method 1

a wireless power supply mechanism (5) configured to supply electric power to the electrical component and including a power transmitting unit (24) attached to the floor, and a power receiving unit (25) attached to the support member so as to face the power transmitting unit and configured to receive the electric power wirelessly from the power transmitting unit

Methodology Applied
Scientific EffectWireless power transmission: Electromagnetic Induction

Data Source

PatentUS11975666B2Seat device for vehicle and electrical device for vehicle
Publication Date: 2024.05.07 TS TECH CO LTD
  • US11975666B2 patent drawing
  • US11975666B2 patent drawing
  • US11975666B2 patent drawing

AI summary

A seat device for a vehicle includes: a support member detachably attached to a floor of the vehicle; an occupant seat movably supported by the support member and provided with an electrical component; and a wireless power supply mechanism configured to supply electric power to the electrical component. The wireless power supply mechanism includes a power transmitting unit attached to the floor, and a power receiving unit attached to the support member so as to face the power transmitting unit and configured to receive the electric power wirelessly from the power transmitting unit.