Liquid Cooling Plate Layout for Power Module Thermal Cascading
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Solution Overview
Problem
Existing liquid cooling plates in power conversion devices are ineffective in dissipating heat for all power conversion modules, leading to low heat dissipation efficiency due to thermal cascading, where the heat dissipation of downstream modules is impaired by the increasing temperature of the coolant.
Innovation Solution
The liquid cooling plate is designed with parallel branch channels and turbulence members, where projections of power conversion modules overlap branch channels to allow coolant to separately take away heat from each module, reducing thermal cascading and enhancing heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a liquid cooling plate is used to dissipate heat from power conversion modules, then heat dissipation capability is improved, but thermal cascading occurs causing reduced heat dissipation efficiency for downstream modules
Solution Approach 1:
The liquid cooling plate is divided into multiple independent cooling channels, each serving specific power conversion modules. This segmentation allows each channel to independently cool its designated modules without thermal interference from other channels, eliminating the thermal cascading effect where downstream modules suffered from heated coolant from upstream modules.
2Power
If power conversion device power is increased to meet new energy industry demands, then power output is improved, but power consumption and heat generation of power plates increase
Solution Approach 1:
The cooling system is segmented into multiple independent channels that can handle heat from high-power modules separately. This allows the system to manage the increased heat generation from higher power output without compromising cooling effectiveness.
Solution Approach 2:
Different cooling channels are designed with locally optimized characteristics to match the heat generation patterns of specific power conversion modules. High-power modules receive dedicated cooling channels with appropriate flow rates and thermal capacity, ensuring efficient heat removal where it is most needed.
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 improves the heat dissipation efficiency of power conversion modules by ensuring that the heat dissipation of one module does not affect others, thereby maintaining high performance even with varying power consumption levels.
Implementation Method 1
coolant in the different branch channels separately takes away heat of the at least two power conversion modules
Implementation Method 2
The liquid cooling plate is designed with parallel branch channels and turbulence members
Data Source
AI summary
A power conversion device and an energy storage cabinet, related to the field of power conversion technologies. The power conversion device includes a housing, a power plate, and a liquid cooling plate. The power plate is located inside the housing. One side of the power plate includes a plurality of power conversion modules, and the other side of the power plate is attached to the liquid cooling plate. The inside of the liquid cooling plate includes a first main channel, at least two branch channels, and a second main channel. Two ends of each branch channel respectively communicate with the first main channel and the second main channel. In a direction perpendicular to the liquid cooling plate, projections of at least two of the plurality of power conversion modules at least partially overlap projections of the different branch channels.