Vehicle Seat with Movable Ventilating Element for Adjustable Airflow

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Solution Overview

Problem

Existing vehicle seats lack effective ventilation solutions that can be adjusted ergonomically to enhance user comfort and provide cooling or air conditioning, especially in the seat area.

Innovation Solution

A vehicle seat design featuring a longitudinally movable seat part element with an integrated ventilating device, including an air-conveying device supported by a movable support plate and protected by cut foam, which allows for adjustable airflow through air ducts and an air-permeable upholstery layer, enabling customizable ventilation and reduced manufacturing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a ventilating device is integrated into a movable seat part element, then ventilation effectiveness is improved, but device complexity increases

Engineering Contradiction:
Improveventilation effectivenessVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ventilating device is merged with the movable seat part element, specifically integrating the air-conveying device into the support plate structure. This combination ensures that ventilation functionality is maintained regardless of the seat part's position, while avoiding the need for separate ventilation systems for each component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The support plate serves multiple functions: it provides structural support for the seat cushion, acts as a mounting platform for the air-conveying device, and enables longitudinal movement of the seat part element. This multi-functionality reduces the need for additional components and simplifies the overall device structure.

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

2Volume of moving object

If a support plate is used to mount the air-conveying device, then installation space is optimized, but manufacturing precision requirements increase

Engineering Contradiction:
Improveinstallation spaceVSAvoidmanufacturing precision
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The seat assembly is segmented into distinct functional components: the base plate attached to the seat frame, the movable support plate carrying the air-conveying device, and the seat cushion. This segmentation allows each component to be manufactured and assembled separately, reducing overall complexity while optimizing space utilization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support plate is designed to be longitudinally movable relative to the seat frame, allowing dynamic adjustment of the seat part length. This mobility is achieved through a sliding joint with rail guides, which provides guided movement while maintaining stable mounting of the air-conveying device on the support plate.

Inventive Principle:
Principle #15Dynamics

3Reliability

If cut foam is used to protect the air-conveying device, then device protection is improved, but weight increases

Engineering Contradiction:
Improvedevice protectionVSAvoidweight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The air-conveying device is encased in cut foam, creating a composite protective structure. The foam material provides cushioning and protection for the air-conveying device while adding minimal weight compared to rigid protective housings. This approach balances protection requirements with weight constraints.

Inventive Principle:
Principle #40Composite materials

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

This design improves seating comfort by providing adjustable ventilation and air conditioning, optimizing installation space, and reducing manufacturing costs while ensuring effective airflow to the user, regardless of seat position.

Implementation Method 1

a ventilating device that has at least one controllable air-conveying device and an air outlet device flow-connected to the air-conveying device

Methodology Applied
Scientific EffectAirflow: Convection

Implementation Method 2

an air-permeable upholstery layer, enabling customizable ventilation and reduced manufacturing costs

Methodology Applied
Scientific EffectPermeation: Permeation

Data Source

PatentUS11571998B2Vehicle seat for a motor vehicle
Publication Date: 2023.02.07 VOLKSWAGEN AG
  • US11571998B2 patent drawing
  • US11571998B2 patent drawing

AI summary

A vehicle seat for a motor vehicle, with a seat frame that can be attached to a vehicle floor, with a seat part supported by the seat frame, and with a ventilating device that has at least one controllable air-conveying device and at least one air outlet device flow-connected to the air-conveying device. Provision is made that a seat part element that lengthens the seat part is mounted on the seat frame so as to be longitudinally movable relative to the seat part, and that the seat part element has the ventilating device.