Segmented Inflatable Airbag Child Safety Seat
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Solution Overview
Problem
Current child safety seats are hard, uncomfortable, and occupy too much space, failing to effectively protect children's shoulders and front from injuries during car accidents, and lack adequate lateral protection against glass fragments.
Innovation Solution
A segmented inflatable airbag seat system with cushion-backrest and armrest-head guard integrated parts, connected by high-frequency welding, featuring inflation-deflation valves and car safety belt fasteners, which can be easily shaped and stored, and includes a shoulder-type elliptical annular front protection body with a natural bending angle for comprehensive protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a wooden or plastic frame is used for the child safety seat, then the structural strength is improved, but the comfort and portability deteriorate
Solution Approach 1:
The seat is divided into multiple independent inflatable segments (cushion segment, backrest segment, armrest segments, head guard segments) that can be individually inflated or deflated. This segmentation allows the seat to maintain structural integrity when needed while enabling complete deflation for compact storage and transport, resolving the contradiction between strength and portability.
Solution Approach 2:
The seat utilizes inflatable airbags that can change their physical state between deflated (compact) and inflated (structural) forms. By changing the volume and pressure parameters of the airbags, the seat transforms from a portable state to a protective state, eliminating the need for rigid wooden or plastic frames while maintaining both portability and structural strength.
2Reliability
If a rigid frame structure is used, then the protective capability is improved, but the comfort and space efficiency deteriorate
Solution Approach 1:
The seat employs phase transition of inflatable materials from a compressed state to an expanded state. When deflated, the seat occupies minimal space for storage; when inflated, it provides comprehensive protective coverage. This phase transition capability allows the seat to deliver full protective capability without permanently occupying large space.
Solution Approach 2:
Instead of rigid frames, the invention uses flexible inflatable airbags made of thin film materials. These flexible shells can be compressed to minimal volume for storage yet expand to provide comprehensive protection during accidents, directly resolving the contradiction between protective capability and space efficiency.
3Ease of operation
If traditional safety seats are used, then basic seating function is provided, but comprehensive protection against lateral impacts and glass fragments is insufficient
Solution Approach 1:
The invention merges multiple protective functions into integrated components. The armrest segments are combined with head guard segments to form armrest-head guard integrated parts that simultaneously protect both the arms and the head from lateral impacts and flying glass fragments, providing comprehensive protection beyond basic seating function.
Solution Approach 2:
The seat employs asymmetric positioning of head guard segments at the lateral ends, specifically designed to shield against objects or glass fragments that may be splashed in during lateral window impacts. This asymmetric design targets specific harmful factors from different directions, enhancing protection against lateral impacts while maintaining comfortable seating.
4Ease of operation
If an inflatable airbag structure is used, then portability and comfort are improved, but the structural rigidity deteriorates
Solution Approach 1:
The seat transitions from a static rigid structure to a dynamic inflatable structure that can adapt its properties. When inflated, the airbags provide sufficient structural rigidity for protection; when deflated, they offer maximum portability. The dynamic nature of the inflatable system allows it to exhibit rigidity only when needed for protection, resolving the contradiction between portability and structural rigidity.
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 effective protection by reducing pressure from external forces, shielding against glass fragments, and supporting multiple fixing standards, ensuring children's safety and convenience in car travel.
Implementation Method 1
The segmented inflatable airbag seat (2) includes a cushion-backrest integrated part (4) in the middle and armrest-head guard integrated parts (3) on two sides... The cushion-backrest integrated part (4) and the armrest-head guard integrated parts (3) are provided with inflation-deflation valves
Implementation Method 2
The cushion-backrest integrated part (4) in the middle and the armrest-head guard integrated parts (3) on the two sides are connected through the cushion-backrest integrated fabric and the armrest-head guard integrated fabrics by high-frequency welding to form a seat shape
Data Source
AI summary
The child safety restraint system comprises a seat main part which is a segmented inflatable airbag seat including a cushion-backrest integrated part in the middle and armrest-head guard integrated parts on two sides, wherein the cushion-backrest integrated part is formed by wrapping a cushion-backrest integrated airbag with a cushion-backrest integrated fabric, and the armrest-head guard integrated parts are formed by wrapping armrest-head guard integrated airbags with armrest-head guard integrated fabrics; head guard segments of the armrest-head guard integrated parts are able to shield against glass fragments splashed into a car when window glass is hit laterally; the cushion-backrest integrated part and the armrest-head guard integrated parts are provided with inflation-deflation valves; and car safety-belt fasteners are arranged between armrest segments and the head guard segments of the armrest-head guard integrated parts. A safety seat comprises a shoulder-type elliptical annular front protection body.