Power Converter Airflow Partitioning for Transformer Heat Shielding
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Solution Overview
Problem
Existing power conversion apparatuses face issues with excessive heat generation in transformers, leading to damage or deterioration of the apparatus.
Innovation Solution
The power conversion apparatus includes a housing with a heat sink and air blocking units to guide air flow, preventing heat from the transformer from transferring to the transistor and improving heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the transformer is disposed close to the transistor for compact design, then the device size is reduced, but heat from the transformer damages the transistor
Solution Approach 1:
An air blocking unit is introduced as an intermediary component between the transformer and the transistor. This unit blocks the direct path of heat transfer from the transformer to the transistor, allowing the components to be disposed close together for compact design while preventing heat damage to the transistor.
Solution Approach 2:
The housing interior is segmented into distinct thermal zones using the air blocking unit. This segmentation creates a heat barrier that divides the space between the transformer (heat source) and the transistor (heat-sensitive component), enabling compact arrangement while maintaining thermal safety.
2Temperature
If air flow is unrestricted for better cooling, then heat dissipation is improved, but hot air from the transformer may reach the transistor
Solution Approach 1:
The air blocking unit is strategically positioned to create localized thermal management zones. It allows free air flow for overall heat dissipation while locally blocking the specific path that would carry hot air from the transformer to the transistor, thus maintaining both cooling efficiency and thermal protection.
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 effectively prevents heat damage to the transistor and enhances the overall heat dissipation efficiency of the power conversion apparatus, ensuring stable operation.
Implementation Method 1
a heat sink provided below the transistor and providing a passage through which air introduced from the outside moves
Implementation Method 2
The heat sink may include: a heat dissipation plate supporting the transistor; and a plurality of heat dissipation fins extending downward from the plate
Data Source
AI summary
Disclosed is a power conversion apparatus. The power conversion apparatus according to one aspect of the present disclosure may include: a housing comprising an upper part, a lower part disposed in parallel with the upper part, a first side part connecting the upper part and the lower part, and a second side part disposed in parallel with the first side part; a transistor provided below the upper part inside the housing; a heat sink provided below the transistor and providing a passage through which air introduced from the outside moves; a first air blocking unit provided on a side surface of the heat sink and disposed in parallel with the first side part; a plurality of capacitors disposed between the first air blocking unit and the second side part; and a transformer disposed to be spaced apart from the heat sink, wherein the upper part may be provided with a discharge part formed above the transformer such that air that has passed through the passage is discharged to the outside of the housing.