Portable Oxygen Concentrator Layout for Compact PSA and Low Vibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing oxygen concentrators are not suitable for portable use due to their large size and complexity, lacking the necessary miniaturization and portability required for personal oxygen supplementation.
Innovation Solution
A portable oxygen concentrator design featuring a compact structure with a circuit board integrated into the compressor cover, a vibration-damping assembly, reinforced internal components, and a dual-cylinder molecular sieve mechanism for efficient oxygen production and storage, along with a user-friendly operation panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional oxygen concentrators are designed for high oxygen production capacity, then oxygen production capacity is improved, but device size and complexity increase making them unsuitable for portable use
Solution Approach 1:
The device is divided into functionally independent modules: compressor mechanism, molecular sieve mechanism, oxygen storage mechanism, and battery box. Each module performs a specific function and can be independently optimized for size and performance, allowing the overall device to be compact while maintaining adequate oxygen production capacity.
Solution Approach 2:
Components are nested within each other to maximize space utilization. The molecular sieve mechanism is positioned above the compressor mechanism, the oxygen storage mechanism is integrated above the compressor, and the outer cover encloses all components in a compact arrangement, creating a nested structural hierarchy that minimizes overall device volume.
2Adaptability or versatility
If conventional oxygen concentrators include complete operational systems, then functionality is improved, but device complexity increases reducing portability
Solution Approach 1:
The compressor mechanism serves multiple functions: it provides pressurized air for the molecular sieve mechanism, powers the vibration damping assembly, and supports the overall PSA process. The molecular sieve mechanism simultaneously performs nitrogen adsorption and oxygen generation. This multi-functionality reduces the number of separate components needed, simplifying the overall system while maintaining comprehensive functionality.
Solution Approach 2:
The vibration damping assembly is extracted as a separate, dedicated component from the compressor mechanism, allowing it to be optimized for noise reduction without adding complex control systems. The outer cover is designed as a separate structural element that provides both enclosure and structural support, eliminating the need for additional framing components.
3Device complexity
If compressor mechanism operates without vibration control, then device simplicity is maintained, but noise and vibration increase reducing portability
Solution Approach 1:
The vibration damping assembly is pre-installed on the compressor mechanism to counteract vibrations before they propagate through the device. The assembly includes damping elements positioned to absorb vibrations at their source, and the outer cover is designed with structural features that further isolate and dampen vibrations, preventing noise transmission to the exterior.
4Volume of moving object
If circuit board is integrated into compressor cover, then space utilization is improved, but manufacturing precision requirements increase
Solution Approach 1:
The first circuit board is integrated directly into the compressor cover, combining the structural function of the cover with the electrical function of the circuit board mounting. This eliminates the need for a separate circuit board housing and reduces overall device volume. The integration is achieved through precise mounting features built into the compressor cover design, balancing space savings with 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 design enhances portability, reduces noise, improves space utilization, and ensures reliable oxygen supply with enhanced market competitiveness.
Implementation Method 1
Pressure swing adsorption is a new type of air separation method developed in the 1960s, making air separation to produce oxygen based on the selective adsorption performance of molecular sieve adsorbent on oxygen and nitrogen in the air
Implementation Method 2
The main principle of the PSA is that the equilibrium adsorption capacity of N2 on adsorbent molecular sieve is higher than that of O2, so N2 and O2 can be separated
Implementation Method 3
the adsorption capacity is positively correlated with the adsorption pressure. Under higher pressure, the capacity of adsorbed nitrogen is large
Implementation Method 4
a compressor mechanism, comprising a compressor main body and a compressor shell provided on an outside of the compressor main body
Data Source
AI summary
A portable oxygen concentrator, including: a battery box, a base assembly, a molecular sieve mechanism, a compressor mechanism, an oxygen storage mechanism, an outer cover, and an operation panel. The compressor mechanism includes a compressor main body and a compressor shell. A side wall of the compressor shell is provided with an opening, where a circuit board is fixed. The compressor main body includes a compressor and a vibration damping assembly arranged at the bottom of the compressor. A first valve assembly is embedded between the compressor main body and the vibration damping assembly, and is connected with the molecular sieve mechanism and an air outlet of the compressor main body. A second valve assembly is embedded between the oxygen storage mechanism and the molecular sieve mechanism, and is connected with an inlet of the molecular sieve mechanism and the oxygen storage mechanism.