Integrated Side Impact Block Structure for Child Safety Seats
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Solution Overview
Problem
Existing child safety seats with side impact protection mechanisms have complex structures, and their foldable nature leads to costly and complicated installations, and there is a risk of malfunction when the protection block is passively folded during an impact.
Innovation Solution
The side impact protection block is integrally formed with the child carrier's shell, eliminating the need for secondary fixation and simplifying the installation process, thereby enhancing structural integrity and reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a foldable side impact protection mechanism is used, then the protection mechanism can be adjusted or folded, but the structure becomes complex and installation becomes complicated
Solution Approach 1:
The side impact protection block is divided into multiple energy-absorbing steps with different wall thicknesses, creating a segmented structure that provides progressive energy absorption while maintaining overall structural simplicity and integral formation with the seat shell
2Adaptability or versatility
If a foldable side impact protection mechanism is used, then the mechanism can be adjusted, but the installation cost and complexity increase
Solution Approach 1:
The side impact protection block is merged with the seat shell as a one-piece integral structure, eliminating the need for separate installation steps and secondary fixation, thereby simplifying manufacturing while maintaining protective functionality
3Adaptability or versatility
If the side impact protection block is foldable, then it can be adjusted, but there is a risk of passive folding during impact reducing buffering effect
Solution Approach 1:
Instead of using a foldable structure that may passively fold during impact, the invention uses an integral fixed structure with progressive energy-absorbing steps that actively resist impact forces through controlled deformation of the stepped walls, ensuring reliable buffering effect
4Loss of energy
If energy-absorbing steps with varying wall thickness are used, then energy absorption is improved, but manufacturing precision requirements increase
Solution Approach 1:
The side impact protection block features local variations in wall thickness through energy-absorbing steps, with thinner walls at certain positions for energy absorption and thicker walls for structural support, optimizing energy absorption characteristics while maintaining manufacturability
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 integrally formed side impact protection block provides uniform energy absorption and reduces the risk of malfunction, enhancing the protective performance and durability of the child carrier.
Implementation Method 1
an outer surface of the side impact protection block is provided with one or more energy-absorbing steps
Implementation Method 2
the energy-absorbing steps have wall thickness decreasing gradually from an outside to an inside
Implementation Method 3
the buffering member includes at least one of a reinforcing rib and an elastic body
Data Source
AI summary
A child safety seat includes a seat shell and a side impact protection block. The side impact protection block is provided on the seat shell and protrudes from a surface of the seat shell, and the side impact protection block and the seat shell are a one-piece part. According to the present disclosure, the side impact protection mechanism is integrally formed with the child carrier, thereby simplifying the structure and facilitating installation and fixation operations. Moreover, a secondary fixation operation for the side-impact protection mechanism is omitted to greatly simplify the installation and fixation process of the side impact protection block and improve production efficiency, and reduce production costs.