Air Pump Inlet Structure for Heat Dissipation and Noise Reduction
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Solution Overview
Problem
Existing air pumps for inflatable products generate significant noise and heat due to the impeller's high-speed operation, leading to overheating and reduced performance.
Innovation Solution
The air inlet structure of the air pump incorporates an air passage between the housing and the pump body, allowing external air to enter and undergo heat exchange with the pump body, thereby enhancing heat dissipation and reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the impeller rotates at high speed to pump air, then the pumping efficiency is improved, but noise is generated and heat is produced
Solution Approach 1:
The patent converts the harmful heat generated by the motor into a useful function by using it to pre-heat the air before it enters the pump body. The air passage is designed to allow air to flow through regions where it can absorb heat from the motor and pump body, transforming the harmful thermal energy into a beneficial pre-heating effect that improves overall system efficiency.
Solution Approach 2:
The patent introduces an air passage as an intermediary structure that mediates between the motor/pump body and the external environment. This air passage serves as a heat transfer medium, allowing thermal energy to be transferred from the motor to the air stream, thereby reducing the harmful effects of heat accumulation while maintaining pumping efficiency.
2Productivity
If air passes directly through the impeller, then pumping function is achieved, but large amount of noise is generated due to air collision with impeller
Solution Approach 1:
The patent applies preliminary action by pre-heating and pre-conditioning the air in the air passage before it reaches the impeller. The air is guided through a path that allows it to gradually approach the impeller region, reducing the shock and collision effects that generate noise. The connecting plate and air passage design ensure air flows smoothly into the pump body.
3Duration of action of moving object
If motor operates for prolonged period, then pumping work is accomplished, but heat accumulates causing motor to overheat and stop running
Solution Approach 1:
The patent converts the harmful heat accumulation into a useful pre-heating function. The air passage is designed to channel air through regions close to the motor and pump body, where the air absorbs excess heat. This transforms the problematic heat accumulation into a beneficial pre-heating effect, extending motor operating duration without overheating.
Solution Approach 2:
The system uses its own operating air flow to cool itself. The air that is being pumped serves dual purposes: it performs the pumping function and simultaneously acts as a cooling medium that absorbs heat from the motor and pump body through the designed air passage, enabling prolonged operation without external cooling systems.
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 significantly improves heat dissipation and reduces noise generated by the air pump, ensuring prolonged operation and enhanced performance.
Implementation Method 1
External air may enter the pump body through the air inlet end after entering the air passage from the air inlet and undergo heat exchange with the pump body when it passes through the side wall of the pump body
Data Source
AI summary
An improved air inlet structure of an air pump is provided. The air inlet structure may include a pump body and a housing. An air passageway formed between the housing and the pump body improves heat transfer from the pump body by transporting external air through a side wall of the pump body.