Energy Storage Cabinet Ventilation Layout for Heat and Pollution Isolation
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Solution Overview
Problem
Existing energy storage inverters face challenges in heat dissipation and protection as power density increases, leading to device failures and instability due to excessive temperature.
Innovation Solution
A cabinet design with a direct ventilation cavity and electronic cavity, featuring a heat exchanger and independent air circulation ducts, enhances heat dissipation and protection by segregating components based on their heat and pollution sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the power density of the energy storage inverter is increased, then the capacity and power output are improved, but the heat dissipation performance deteriorates and device temperature becomes excessive
Solution Approach 1:
The cabinet is divided into a direct ventilation cavity and an electronic cavity that are independent from each other. The direct ventilation cavity is specifically designed to accommodate high-heat components (battery, inverter) and provides dedicated heat dissipation pathways, while the electronic cavity protects sensitive electronics. This segmentation allows targeted heat management for different thermal zones within the cabinet.
Solution Approach 2:
A heat exchanger is introduced as an intermediary component to facilitate heat transfer from the direct ventilation cavity to the external environment. The heat exchanger works in conjunction with the direct ventilation duct to create an efficient heat dissipation pathway, allowing thermal energy to be transferred from high-heat components to the outside air without directly exposing sensitive electronic components to these thermal loads.
2Reliability
If conventional protection measures (housing protection and dust-filtering meshes) are used, then some protection is provided, but protection performance is insufficient and external pollution still affects components
Solution Approach 1:
The cabinet is divided into a direct ventilation cavity and an electronic cavity that are independent from each other. The electronic cavity is specifically designed to house sensitive electronic components and is isolated from direct external exposure, while the direct ventilation cavity handles environmental interaction. This segmentation creates a protected zone for electronics while allowing the ventilation cavity to manage heat dissipation and environmental exposure separately.
Solution Approach 2:
The direct ventilation duct acts as an intermediary pathway that connects the external environment to the cabinet's internal heat dissipation system without directly exposing sensitive electronic components to external pollution. The duct provides a controlled interface between the external environment and the cabinet interior, allowing necessary air exchange while filtering and directing airflow away from protected components.
3Reliability
If the cabinet provides comprehensive protection against external environment, then protection performance is improved, but heat dissipation performance deteriorates due to sealed structure
Solution Approach 1:
The cabinet is divided into a direct ventilation cavity and an electronic cavity that are independent from each other. The direct ventilation cavity is specifically designed to be open to the environment through the direct ventilation duct, allowing free air exchange for heat dissipation. The electronic cavity maintains protective sealing for sensitive components. This segmentation enables simultaneous achievement of protection and heat dissipation by assigning different functional requirements to different zones.
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
Improves heat dissipation efficiency and protection performance, preventing external pollution and ensuring stable operation of high-demand components.
Implementation Method 1
The heat exchanger is provided in the cabinet body and has a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is configured to exchange heat with the outside of the cabinet body
Implementation Method 2
The electronic cavity is in communication with the second heat exchange channel to exchange heat with the first heat exchange channel
Implementation Method 3
The direct ventilation cavity forms at least part of a direct ventilation duct, and two ends of the direct ventilation duct are in communication with outside of the cabinet body
Data Source
AI summary
A cabinet, an energy storage converter, an energy storage system, and a photovoltaic power generation system are provided. The cabinet includes a cabinet body and a heat exchanger. The cabinet body includes a direct ventilation cavity and an electronic cavity. The direct ventilation cavity is independent from the electronic cavity. The direct ventilation cavity forms at least part of a direct ventilation duct, and two ends of the direct ventilation duct are in communication with outside of the cabinet body. The heat exchanger is provided in the cabinet body and has a first heat exchange channel and a second heat exchange channel. The first heat exchange channel exchanges heat with the outside of the cabinet body, and the electronic cavity is in communication with the second heat exchange channel to exchange heat with the first heat exchange channel.