Portable Air Purifier with Vertical Flow Path and Rotatable Discharge
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Solution Overview
Problem
Conventional portable air purifiers face inefficiencies due to suction port interference, reduced air flow rates, and degraded air purification efficiency when mounted on structures like cup holders, and lack effective air discharge direction control, leading to suboptimal performance in small spaces and mobility.
Innovation Solution
A portable air purifier design featuring a cylindrical shape with a vertical air flow path, a diagonal flow fan, and a rotatable discharge system that ensures air flows straight up, minimizing resistance and maximizing purification efficiency, while the battery is positioned to stabilize the device and allow for easy mounting in various locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the suction port is formed in one side surface of a lower portion of the body portion, then the device structure is simple, but the suction port interferes with mounting structures and the air purification rate decreases
Solution Approach 1:
The suction ports are divided into multiple locations: a first suction port in the lower portion and a second suction port in the upper portion of the front surface. This segmentation allows the device to maintain simple structure while improving air intake capability and avoiding interference with mounting structures like cup holders.
Solution Approach 2:
The suction ports are distributed across different vertical dimensions (lower and upper portions) of the front surface. This dimensional distribution enables the device to intake air from multiple heights, improving purification efficiency without complicating the overall structure.
2Device complexity
If the suction port is formed only at one side of the body portion, then the device structure is simple, but the air flow rate into the body portion is decreased
Solution Approach 1:
The single suction port is segmented into multiple suction ports located at different positions (lower and upper portions). This increases the total air intake area and flow rate while maintaining a simple device structure without requiring complex internal pathways.
Solution Approach 2:
The front surface of the cylindrical body serves multiple functions: it provides structural support, aesthetic appearance, and houses multiple suction ports for air intake. This multi-functionality increases air flow rate without adding device complexity.
3Device complexity
If air movement occurs mostly through one side of the filter close to the suction port, then the device structure is simple, but the air purification efficiency is degraded
Solution Approach 1:
The air flow path is segmented into multiple streams by positioning suction ports at different heights. Air enters through both the lower and upper suction ports and distributes across different regions of the filter, improving purification efficiency while maintaining a simple cylindrical structure.
Solution Approach 2:
Air intake is extended to multiple vertical dimensions with suction ports at both lower and upper portions. This creates multidimensional air flow distribution across the filter surface, enhancing purification efficiency without complicating the device structure.
4Volume of moving object
If the sanitizing apparatus is disposed between the fan and the filter and installed across the inside of the body portion, then the device structure is compact, but the air flow path resistance is increased and air purification efficiency is degraded
Solution Approach 1:
The sanitizing apparatus is extracted from the main air flow path and repositioned to irradiate the filter from the side or rear. This removes the obstruction caused by the sanitizing apparatus in the air flow path, reducing resistance and improving purification efficiency while maintaining compact device dimensions.
Solution Approach 2:
The sanitizing apparatus acts as an intermediary that irradiates the filter without being in the direct path of air flow. This allows the filter to be sanitized effectively while maintaining smooth air flow through the device, balancing compactness with purification efficiency.
5Device complexity
If the discharge of purified air is performed through the upper side of the body portion without a separate apparatus for controlling air discharge direction, then the device structure is simple, but the purified air is not smoothly supplied toward the face of the user
Solution Approach 1:
The discharge port is made rotatable, allowing dynamic adjustment of the air discharge direction. This enables the purified air to be smoothly supplied toward the user's face while maintaining a simple device structure without requiring separate control apparatus.
Solution Approach 2:
The discharge port can rotate to change the spatial direction of air output from the upper side of the body. This adds directional control in the horizontal dimension while keeping the vertical discharge location simple, improving user comfort without increasing device complexity.
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 air purification efficiency, maintains high performance in small spaces, and allows for stable operation and easy mounting on structures like cup holders, improving mobility and air distribution towards the user.
Implementation Method 1
a fan, and a housing. The filter is installed in the housing and disposed between the suction ports and the fan. The fan moves air from the suction ports through the housing to the discharge port
Data Source
AI summary
A portable air purifier may include an inlet configured to form a path along which air is suctioned, a filter disposed at an upper side of the inlet and configured to purify air which enters through the inlet and moves upward, a sanitizing portion disposed at a lower side of the filter, installed at a height allowing the sanitizing portion to overlap the inlet, and configured to irradiate sanitizing light toward the filter, and a fan module disposed at an upper side of the filter and configured to rotate a fan to blow air in a direction toward the upper side of the filter.