Blower Inverter Cooling via Impeller Suction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional turbo blowers require separate cooling systems, such as cooling fans or water-cooled methods, which are inefficient, complex, or prone to leakage, and mix motor heat with inverter heat, leading to ineffective cooling of inverters.
Innovation Solution
A blowing system that uses the suction force of an impeller to generate a gas flow for cooling the inverter without a separate cooling fan, featuring a blower, case, and cooling member design that separates heat sources and uses a gas passage to direct cooled air to the inverter, with a flow adjusting unit to manage pressure loss and enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate cooling fan is used to cool the inverter, then the cooling capability is improved, but the device complexity and lifespan are worsened
Solution Approach 1:
The patent merges the cooling function with the existing blower system by routing the blower's gas flow through a cooling passage to cool the inverter. This eliminates the need for a separate cooling fan, reducing device complexity while maintaining cooling capability. The blower serves dual purposes: compressing gas and cooling the inverter.
Solution Approach 2:
The blower is designed to perform multiple functions: compressing gas for the intended application and simultaneously cooling the inverter through its exhaust flow. The cooling passage is integrated into the blower housing, allowing the same component (blower) to serve both primary compression and secondary cooling functions.
2Temperature
If a water-cooled method is used to cool the inverter, then the cooling efficiency is improved, but the device complexity and leakage risk are worsened
Solution Approach 1:
The patent uses gas flow (air) instead of liquid (water) for cooling the inverter. The cooling passage is designed to channel the blower's gas flow directly over the inverter components, providing effective cooling without requiring water tanks, radiators, or complex liquid circulation systems.
Solution Approach 2:
The patent extracts the cooling function from complex water-cooled systems and implements it using the existing gas flow from the blower. By removing the need for water circulation components (tanks, pumps, radiators), the system achieves simplified structure while maintaining cooling effectiveness.
3Device complexity
If the blower receiving portion is integrated with the gas passage, then the device complexity is reduced, but the temperature control is worsened due to heat mixing
Solution Approach 1:
The patent segments the internal structure by creating a heat source separating wall that divides the blower receiving portion from the gas passage. This segmentation prevents hot gas from the motor area from mixing with the cooling flow, allowing independent temperature control for each component while maintaining structural integration.
Solution Approach 2:
The heat source separating wall acts as an intermediary barrier between the motor heat source and the inverter cooling passage. It physically separates the two thermal zones, preventing harmful heat transfer while allowing the overall structure to remain compact and integrated.
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 solution allows for quick and efficient cooling of the inverter using only the impeller-generated gas flow, eliminating the need for separate cooling fans and reducing the risk of heat mixing, thereby increasing the system's lifespan and cooling efficiency.
Implementation Method 1
the gas flows through the gas passage by means of a suctioning force generated by the impeller
Implementation Method 2
the cooling member is cooled by the gas
Data Source
AI summary
A blowing system includes: a blower; a case including: a blower receiving portion for receiving a heat source of the blower; a gas inlet for suctioning the gas from the outside; a gas passage connected from the gas inlet to a blower inlet; and an inverter receiving portion in which an inverter are installed; and a cooling member for cooling the inverter by using air, and has one end coupled to the inverter and the other end exposed to the gas passage, wherein the blower receiving portion is spatially separated from the gas passage, and the gas flows through the gas passage due to a suctioning force of an impeller, and the cooling member is cooled by the gas. According to the present invention, without separate cooling fans, the inverter may be quickly cooled only with the flow of gas generated by the impeller.