Protective Hood Air Duct Coupling for Cabinet Busbar Cooling
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Solution Overview
Problem
Existing power systems face challenges in dissipating heat from conductive members in cabinets like photovoltaic inverters, leading to increased costs due to the need for fans and structural components for forced air cooling.
Innovation Solution
A cabinet assembly with a protective hood assembly and integrated heat dissipation air ducts that utilize airflow from the cabinet's heat dissipation system to cool the conductive member, eliminating the need for separate fans and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If forced air cooling is adopted to dissipate heat from the conductive member, then heat dissipation effect is improved, but cost increases due to fan and structural members
Solution Approach 1:
The patent combines the heat dissipation functions of the conductive member and the cabinet into a single integrated system. The first heat dissipation air duct (for the conductive member) and second heat dissipation air duct (for the cabinet) are merged into one shared airflow path, allowing both components to be cooled by the same forced air flow from a single fan, thereby reducing overall system cost while maintaining effective heat dissipation.
Solution Approach 2:
The patent makes the heat dissipation system universal by designing it to serve multiple functions simultaneously. The same fan and airflow path are used to cool both the conductive member (through the first air duct) and the cabinet (through the second air duct), allowing one cooling system to perform multiple heat dissipation tasks that would traditionally require separate cooling systems.
2Reliability
If separate fan is used for conductive member heat dissipation, then heat dissipation reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the heat dissipation systems of the conductive member and cabinet into a single integrated airflow path. By combining both heat dissipation needs into one system with a single fan, the patent actually improves reliability through simplified architecture while reducing device complexity. The shared airflow ensures both components are cooled effectively without requiring multiple independent cooling systems.
Solution Approach 2:
The patent creates a universal heat dissipation system that serves both the conductive member and cabinet simultaneously. This multi-functional design improves reliability by ensuring that critical cooling functions are maintained through a single robust system rather than multiple potential failure points, while keeping device complexity manageable through integration.
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 solution effectively reduces heat dissipation costs and improves reliability by coupling the conductive member's heat dissipation with the cabinet's airflow, allowing for reduced cross-sectional area and increased maximum current capacity of the conductive member, while ensuring continuous heat dissipation even if individual cabinets fail.
Implementation Method 1
the first heat dissipation air duct is in communication with the second heat dissipation air duct of the at least one cabinet to dissipate heat from the conductive member
Data Source
AI summary
A cabinet assembly and a photovoltaic power station are provided. The cabinet assembly includes at least one cabinet, a conductive member and a protective hood assembly. The conductive member can be electrically connected to a cabinet output member of the cabinet, and the conductive member is arranged in the protective hood assembly. The protective hood assembly is provided with a first heat dissipation air duct, the cabinet is provided with a second heat dissipation air duct, and the first heat dissipation air duct is in communication with the second heat dissipation air duct of the at least one cabinet to dissipate heat from the conductive member. In this cabinet assembly, a heat dissipation airflow within the second heat dissipation air duct of the cabinet can be utilized to flow through the conductive member within the first heat dissipation air duct for heat dissipation.