Vehicle Seat Air Bladder Mounting for Stable Vibration and Low Noise
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pneumatic and vibration providing devices for vehicle seats face challenges in stable operation and noise reduction due to the vibration motor's attachment to the air bladder, leading to unstable motor operation and noise amplification during inflation and deflation.
Innovation Solution
A pneumatic and vibration providing device where a vibration motor is bonded to a first air bladder using a fusion sheet, fixed by thermal fusion, to prevent movement and noise issues, and a second air bladder is provided to supplement inflation and adjust vibration intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vibration motor is directly attached to the outer surface of the air bladder, then the seat package is efficiently provided with integrated pneumatic and vibration systems, but the vibration motor moves unstably during air intake and exhaust, resulting in amplified noise
Solution Approach 1:
A fusion sheet is introduced as an intermediary component between the vibration motor and the air bladder. This fusion sheet is thermally fused to the air bladder surface, creating a stable bonding interface that prevents the vibration motor from moving during air intake and exhaust operations, thereby eliminating noise amplification while maintaining the integrated system design
2Ease of manufacture
If the vibration motor is directly attached to the air bladder, then the assembly process is simplified, but additional dampers or control logic are required to reduce noise, increasing device complexity
Solution Approach 1:
The fusion sheet serves as a simple intermediary component that is thermally fused to the air bladder, providing stable motor attachment without requiring complex dampers or control logic. This approach maintains ease of manufacture while reducing device complexity compared to alternative noise reduction solutions
3Volume of moving object
If the vibration motor is attached to the air bladder surface, then space utilization is optimized, but the motor operation becomes unstable during pneumatic operations, affecting reliability
Solution Approach 1:
The fusion sheet acts as a mediator that is thermally fused to the air bladder surface, creating a stable bonding interface that prevents vibration motor displacement during pneumatic operations. This ensures reliable motor operation while maintaining optimized space utilization within the seat structure
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 solution ensures stable operation of the vibration motor, reduces noise, and eliminates the need for additional dampers or control logic, while enhancing passenger comfort through integrated pneumatic and vibration systems.
Implementation Method 1
the edge portion entirely fixed to the first air bladder by thermal fusion
Data Source
AI summary
The present disclosure provides a pneumatic and vibration providing device for a vehicle seat, the pneumatic and vibration providing device including a first air bladder mounted in a seatback and configured to be inflated and deflated in the seatback, and a vibration motor disposed on a front portion of the first air bladder and configured to selectively generate vibration, wherein the vibration motor has a fusion sheet provided on one surface side thereof, wherein the fusion sheet has an edge portion entirely fixed to the first air bladder by thermal fusion.