Portable Electric Inflator L-Shaped Cooling
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Solution Overview
Problem
Conventional portable air compressors face performance and safety issues due to ineffective heat dissipation from the reciprocating motion of the piston body, leading to reduced efficiency and longer inflation times.
Innovation Solution
A portable electric inflator design featuring a box with a generally L-shaped space to facilitate airflow for heat dissipation, where the cooling fan draws outside air to flow through the motor, main frame, and cylinder, utilizing beveled radial braces and through holes to dissipate heat generated by the air compressor's components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the air compressor uses a compact box design for portability, then the device becomes easier to transport, but heat dissipation becomes ineffective leading to reduced performance and safety
Solution Approach 1:
The box is divided into multiple functional spaces including motor accommodating space, cylinder accommodating space, and heat dissipation channels. Partition walls create separate zones for different components while maintaining compact overall structure, allowing effective heat dissipation pathways within the portable design.
Solution Approach 2:
Heat dissipation is achieved by creating three-dimensional airflow pathways through the box structure. The cooling fan generates airflow that moves through vertically and horizontally arranged channels, utilizing spatial dimensions to maximize heat dissipation surface area within the compact box volume.
2Productivity
If the air compressor operates with high power to reduce inflation time, then productivity increases, but heat generation increases leading to performance reduction and safety issues
Solution Approach 1:
The heat generated by high-power operation is converted from a harmful factor into a managed thermal flow. The cooling fan actively directs airflow through heat dissipation channels positioned near the motor and cylinder, transforming waste heat into a controlled thermal management system that enables sustained high-power operation.
Solution Approach 2:
Air acts as an intermediary cooling medium between the heat-generating components (motor, cylinder, bearing) and the external environment. The cooling fan drives this intermediary airflow through designated pathways, efficiently transferring heat from components to the surrounding air without requiring direct contact cooling systems.
3Volume of moving object
If the motor and cylinder are positioned close together for compact design, then the device size is reduced, but heat from both components accumulates and reduces performance
Solution Approach 1:
Different regions of the box are assigned different thermal management qualities. The motor area has dedicated cooling channels, the cylinder area has separate heat dissipation pathways, and partition walls create localized cooling zones. Each component's vicinity is optimized for its specific heat dissipation requirements while maintaining overall compactness.
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
This design enhances the performance and safety of the inflator by quickly dissipating heat, reducing the time required for inflation and potentially allowing for a smaller, more efficient device.
Implementation Method 1
a cooling fan of the air compressor can draw outside air into the generally L-shaped space, the airflow being directed to flow through two openings of the motor to enter the interior of the motor so that the heat generated in the motor can be quickly dissipated
Implementation Method 2
the airflow is guided to a peripheral wall of a main frame of the air compressor, which cooperates with a plurality of beveled radial braces around a bearing, and two through holes of the main frame to facilitate the airflow to flow through the main frame to quickly dissipate the heat generated in the bearing and the associated transmission mechanism
Implementation Method 3
the airflow passing through the main frame turns at a right angle to reach the cylinder fitted with a piston body to quickly dissipate the heat generated from the reciprocating motion of the piston body
Data Source
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AI summary
A portable electric inflator includes an electric air compressor, a pressure gauge, and a box for accommodating the electric air compressor and the pressure gauge. The box defines therein a generally L-shaped space for accommodating a cooling fan, a motor, a main frame with a transmission mechanism, a cylinder with a piston body, and an air storage tank of the electric air compressor. The motor defines two openings at its surrounding wall and multiple downstream through holes at its bottom wall. The main frame is provided with a peripheral wall and beveled radial braces and defines two through holes to facilitate the airflow passing through the main frame. The cooling fan can draw outside air to enter the box and smoothly flow along the generally L-shaped space to quickly dissipate the heat generated by the electric air compressor, whereby the performance and safety of the inflator can be increased.