Stroller Air Filtration Layout for Infant Pollution Shielding
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Solution Overview
Problem
Infants are highly susceptible to air pollution, which can lead to lung diseases and other health issues due to inhalation of pollutants like heavy metals and particles, necessitating a solution to minimize their exposure to polluted air during outdoor activities.
Innovation Solution
A portable air-filtering device is designed to be integrated with baby-transporting devices, featuring an air-impermeable back layer and an air-permeable front layer that creates an internal cavity, utilizing a power-driven ventilator to draw external air, filter it through an electrostatically charged inner air filter, and distribute purified air around the baby, preventing polluted air from entering the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a portable air-filtering device is integrated with a baby-transporting device to filter and purify air, then the air quality in the baby's environment is improved, but the device complexity increases
Solution Approach 1:
The air-filtering device is integrated within the baby-transporting device structure, with the housing containing the ventilator, filters, and control elements nested inside the stroller frame. The device utilizes the existing canopy and structural space of the baby-transporting device, effectively nesting the air filtration system within the transport device without requiring a separate standalone unit.
Solution Approach 2:
The air-filtering device serves multiple functions: it draws in external air, filters macroparticles through the outer air filter, filters microparticles through the inner air filter, distributes purified air through the air-permeable front layer, and prevents polluted air from entering the baby-transporting device. This multi-functional integration resolves the contradiction by providing comprehensive air protection while maintaining a unified device structure.
2Stability of the object's composition
If an air-permeable front layer is used to distribute purified air evenly, then the air distribution homogeneity is improved, but the air-impermeable back layer reduces the overall air permeability
Solution Approach 1:
The air distribution system is segmented into distinct functional layers: an air-impermeable back layer that maintains structural integrity and directs airflow, an internal cavity for air mixing and pressure equalization, and an air-permeable front layer for even air distribution. This segmentation allows each layer to perform its specific function optimally, resolving the contradiction between air impermeability for structure and air permeability for distribution.
Solution Approach 2:
The internal cavity acts as an intermediary chamber between the air inlet and the air-permeable front layer. Air drawn through the outer air filter enters the internal cavity, where it is pressurized by the ventilator and distributed evenly before passing through the air-permeable front layer. This intermediary cavity ensures homogeneous air distribution while maintaining the air-impermeable back layer's structural function.
3Reliability
If a power-driven ventilator is used to draw air through filters and create overpressure, then the air purification effectiveness is improved, but the energy consumption increases
Solution Approach 1:
The outer air filter is positioned at the air inlet to pre-filter macroparticles from external air before it enters the internal cavity. This preliminary filtration reduces the load on the inner air filter and ventilator, allowing the system to maintain effective air purification with reduced energy consumption. The baffle also directs airflow efficiently through the internal cavity, minimizing energy waste.
Solution Approach 2:
The air-permeable front layer uses porous material that allows purified air to pass through evenly while maintaining a controlled flow rate. This porous structure enables the system to distribute purified air effectively without requiring excessive ventilator power, balancing air purification effectiveness with energy efficiency. The porous material facilitates passive air distribution complementing the active ventilator operation.
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 device effectively reduces the concentration of microparticles and gases within the baby's environment, creating a localized purified air cushion, thereby minimizing the baby's exposure to harmful pollutants and preventing draughts.
Implementation Method 1
the inner air filter is composed of an electrostatically charged material
Implementation Method 2
a first power driven ventilator arranged to draw air from an external surrounding through the air inlet into the internal cavity, so that an overpressure is generated in the cavity
Implementation Method 3
The overpressure in the internal cavity will force the air to flow through the front layer towards the inner area
Data Source
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AI summary
The object of the present invention is to reduce the exposure of polluted air to a baby, and in particular to minimize the pollutions inhaled by a baby when strolling, walking or transporting a baby in an exterior environment. The object is attained by providing a portable device for filtering air, said device being adapted to be arranged in association with a top end of a baby- transporting device. With such an air-filtering device, air from outside of the baby-transporting device may be filtered and purified before being provided in a well-distributed manner to the area of the baby-transporting device where a baby is positioned.