Power Cabinet Layout With Separate Cooling Chambers
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Solution Overview
Problem
The increasing demand for photovoltaic grid-connected inverters to handle higher power levels leads to higher costs and complex structures, particularly in outdoor box-type inverter power cabinets, which require multiple inverters and increased space, resulting in elevated costs and maintenance challenges.
Innovation Solution
A power cabinet design that includes a cabinet body with an electric reactor, power unit, and switch arranged in a compact configuration, with the electric reactor and power unit dissipating heat in separate chambers, reducing connection costs and overall volume while improving heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If outdoor box-type inverter power cabinet is used with higher power requirements, then the power handling capability is improved, but the overall cost and structure complexity increase
Solution Approach 1:
The patent combines multiple functional components (inverter, electric reactor, switch, control unit, heat dissipation devices) into a single integrated power cabinet structure. This merging approach allows high power handling capability while maintaining relatively simple overall structure, as components share common housing, mounting structures, and heat dissipation systems rather than requiring separate outdoor boxes for each function.
2Power
If multiple inverters are integrated together to upgrade power level, then the power handling capability is improved, but the overall floor space and assembly space increase
Solution Approach 1:
The patent utilizes vertical space arrangement within the cabinet body, positioning components at different heights and depths rather than only horizontal placement. The electric reactor, power unit, switch, and control unit are arranged in a three-dimensional configuration that maximizes space utilization, allowing multiple inverter functions to be integrated without proportionally increasing floor space occupation.
3Device complexity
If electric reactor and power unit are placed in same chamber, then the device complexity is reduced, but the heat dissipation efficiency decreases
Solution Approach 1:
The patent divides the cabinet interior into distinct chambers or zones: a first chamber housing the electric reactor and a second chamber housing the power unit and switch. This segmentation allows each component to have dedicated heat dissipation space and airflow paths, improving thermal management efficiency while maintaining relatively simple overall structure through standardized partitioning.
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
The compact configuration reduces the overall cost and volume of the power cabinet while enhancing heat dissipation efficiency, thereby lowering heat-dissipation costs and maintaining system reliability.
Implementation Method 1
the electric reactor and power unit dissipating heat in separate chambers
Data Source
AI summary
A power cabinet, which includes a cabinet body and an electric reactor, a power unit and a switch arranged in the interior of the cabinet body. In the interior of the cabinet body of the power cabinet, the electric reactor is arranged close to a first side in the interior of the cabinet body, and the power unit and the switch are arranged on a second side in the interior of the cabinet body, opposite to the first side. Moreover, these electric reactor, the power unit and the switch are all located in a lower space. In addition, in the power cabinet, the electric reactor and power unit dissipate heat in different chambers from the switch dissipates heat.