Generator Inverter Cooling Layout With Single Air Intake Port
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Solution Overview
Problem
The presence of multiple air intake ports in generators leads to sound leakage, moisture infiltration, increased costs for noise and water damage countermeasures, and reduced cooling efficiency due to smaller air intake amounts.
Innovation Solution
A single air intake port is provided on a cover of the generator's exterior body, aggregating cooling air inlets, with the inverter positioned to directly receive cooling air flow from the fan, and guided by air intake parts to enhance cooling and noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple air intake ports are provided, then cooling air can be supplied from multiple locations, but sound leakage increases and moisture infiltration risk increases
Solution Approach 1:
The patent consolidates multiple air intake ports into a single air intake port located on the side cover. This merging approach maintains adequate cooling air supply to the inverter while reducing the number of openings in the exterior body, thereby decreasing sound leakage and moisture infiltration risks.
2Temperature
If multiple air intake ports are provided, then cooling coverage is improved, but the air intake amount per port becomes small and countermeasures become complicated
Solution Approach 1:
The patent merges multiple air intake ports into one larger air intake port on the side cover. This single port provides sufficient total air intake area to cool the inverter effectively, while reducing the complexity and cost of noise and water damage countermeasures compared to protecting multiple separate ports.
3Device complexity
If a single air intake port is provided, then noise and moisture countermeasures are simplified, but cooling air supply capacity may be reduced
Solution Approach 1:
The patent positions the single air intake port on the side cover in close proximity to the inverter, and orientates it to directly face the inverter's heat-generating components. This localized positioning ensures that the single port delivers concentrated cooling air directly where needed, maintaining effective cooling capacity despite having only one intake port.
Solution Approach 2:
The patent utilizes the spatial dimension by positioning the air intake port on the side cover and directing cooling air along a specific flow path that passes over the inverter before exiting through the rear cover. This dimensional arrangement maximizes the cooling efficiency of the single air intake port.
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 configuration facilitates effective cooling of the inverter, reduces noise leakage, and simplifies countermeasures for noise and moisture ingress while maintaining efficient air intake.
Implementation Method 1
the inverter is provided at a position where cooling air makes direct contact, the cooling air flowing in from the air intake port by the cooling fan
Implementation Method 2
cooling air makes direct contact with the inverter, facilitating effective cooling
Data Source
AI summary
In a generator including an engine, an inverter, and a cooling fan inside an exterior body, an air intake port is provided on a predetermined cover constituting a part of the exterior body. The air intake port aggregates each cooling air inlet of the generator, and the inverter is provided at a position where cooling air makes direct contact, the cooling air flowing in from the air intake port by the cooling fan, and the position corresponding to a position between the engine and the air intake port.