Cushion airbag pad
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Solution Overview
Problem
Existing airbag cushions suffer from slow gas leakage and inflation failures due to deformation of the one-way air admittance member, leading to inconvenience and reduced service life.
Innovation Solution
A cushion airbag pad design featuring a one-way air admittance member with fixed ends to prevent bending, allowing unidirectional gas flow and preventing leakage, comprising a cushion body with integrated airbags and airways, and a one-way air admittance channel with an air inlet and outlet port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the one-way air admittance member is attached to the cushion body, then gas can flow unidirectionally into the airbags, but the air outlet portion deforms and bends during attachment, causing inflation failure
Solution Approach 1:
The air outlet portion is pre-formed with a support structure that maintains its shape during attachment and operation. This preliminary structural preparation prevents deformation when the one-way air admittance member is attached to the cushion body, ensuring reliable gas flow into the airbags.
Solution Approach 2:
The air outlet portion is designed as a flexible structure with integrated support ribs or stiffening elements that maintain its geometric shape while allowing the overall component to be attached to the cushion body. This flexible yet supported structure prevents bending during attachment and operation.
2Ease of operation
If gas is allowed to enter the airbag cushion, then the cushion provides buffering pressure, but gas slowly leaks through the air inlet port over time, requiring frequent re-inflation
Solution Approach 1:
Instead of trying to prevent gas from entering the air inlet port, the invention uses a one-way air admittance member that allows gas to flow in one direction (into the airbags) while automatically preventing reverse flow. This inversion of the control approach - allowing controlled entry while blocking exit - eliminates the need for frequent re-inflation.
Solution Approach 2:
The one-way air admittance member automatically controls gas flow direction without external intervention. When gas pressure inside the airbags exceeds external pressure, the member closes to prevent leakage. When external pressure exceeds internal pressure, the member opens to allow re-inflation. This self-regulating mechanism maintains gas retention without user action.
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
Prevents slow gas leakage and frequent inflation requirements, ensuring smooth inflation and extending the service life of the cushion by maintaining the one-way air admittance member in a non-bending state.
Implementation Method 1
the one-way air admittance channel allows gas to flow unidirectionally from the air inlet port to the at least one air outlet port
Data Source
AI summary
A cushion airbag pad, which comprises: a cushion body, comprising a pad body; a plurality of airbags; and a plurality of airways; and a one-way air admittance member mounted in the cushion body and internally provided with a one-way air admittance channel; wherein the one-way air admittance channel is provided with an air inlet port and at least one air outlet port, and at least two ends of the one-way air admittance member are fixed to the cushion body, and one end of the at least two ends, away from the air inlet port, of the one-way air admittance member is fixed to the pad body, such that warping of the one-way air admittance member is inhibited, thereby keeping the one-way air admittance member in a non-bending state.