Integrated Power Cabinet Layout for Inverter Heat Separation
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Solution Overview
Problem
Existing photovoltaic grid-connected inverters face high costs and complex structures due to increased power requirements, necessitating multiple inverters and larger floor space, which complicates assembly and maintenance.
Innovation Solution
A power cabinet design with a cabinet body containing an electric reactor, power unit, and switch arranged in specific sequences and chambers, along with optimized heat-dissipation channels, reduces connection paths and overall volume, improving heat-dissipation efficiency and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple inverters are integrated together to increase power level, then the power output is improved, but the overall floor space and assembly maintenance space are increased
Solution Approach 1:
The patent combines multiple inverter functions into a single integrated power cabinet structure. The cabinet body houses all necessary components (power modules, heat dissipation channels, control units) in a unified design, eliminating the need for separate inverter units and reducing overall floor space occupation while maintaining high power output capability.
2Power
If multiple inverters are integrated together to increase power level, then the power output is improved, but the assembly and maintenance space is increased
Solution Approach 1:
The power cabinet is divided into functionally independent modules including power modules, heat dissipation channels, and control units. Each module can be independently assembled, installed, and maintained. The modular design with standardized interfaces simplifies assembly procedures and enables quick replacement of specific components without affecting the entire system.
Solution Approach 2:
The power cabinet design incorporates universal mounting structures and standardized connection interfaces that can accommodate different power module configurations. The heat dissipation channels are designed to serve multiple components simultaneously, and the control unit can manage various power levels, providing multi-functionality that reduces complexity in assembly and maintenance operations.
3Volume of stationary object
If connection paths are reduced to minimize cost, then the overall volume is improved, but the heat-dissipation efficiency may be affected
Solution Approach 1:
The heat dissipation channels are nested within the cabinet body structure, with channels positioned to efficiently extract heat from power modules while occupying minimal space. The control units and other components are strategically placed within or adjacent to these channels, creating a nested arrangement that maximizes heat dissipation efficiency within the compact overall volume of the power cabinet.
Data Source
Figure 1~2
Figure 3a~3b
Figure 3c~3d
AI summary
The present application provides 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.