Battery Pack Heat Radiator Layout for Compact Cooling Airflow
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Solution Overview
Problem
Conventional energy storage apparatuses face challenges in efficiently dissipating heat in limited spaces due to the restricted volume of ducts for outside air flow, which hampers the performance of heat radiators used for cooling batteries and power converters.
Innovation Solution
The energy storage apparatus incorporates a dual heat radiator system with a cooling water pipe and heat sink fins, along with a heat sink fan and cover plate with communicating holes, to increase the heat dissipation area and air flow, allowing for effective cooling of cooling water by utilizing both sides of the casing and optimizing the flow path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the volume of duct for outside air flow is increased to improve heat radiator performance, then heat dissipation performance is improved, but the device occupies more space which is not applicable in limited space of energy storage apparatus
Solution Approach 1:
The heat radiator is nested within the casing of the energy storage apparatus, utilizing the internal space of the casing to house the radiator structure. This allows the heat dissipation system to be integrated within the existing device boundaries without requiring additional external space.
Solution Approach 2:
The heat radiator utilizes the vertical dimension by extending heat sink fins in the vertical direction and positioning the fan above the heat sink to create vertical air flow. This three-dimensional heat dissipation structure maximizes heat exchange surface area within the limited horizontal footprint of the casing.
2Volume of stationary object
If a conventional heat radiator structure is used with limited space, then the device fits in compact space, but heat dissipation performance is insufficient
Solution Approach 1:
The heat radiator is segmented into multiple components: a heat sink with multiple fins, a fan for air circulation, and integration with the cooling water pipe. This segmentation allows each component to perform its specific function efficiently within the compact space, maximizing heat dissipation through distributed heat exchange surfaces.
Solution Approach 2:
The fan creates periodic air flow through the heat sink fins, continuously replenishing the air that contacts the hot surfaces with cooler ambient air. This periodic action maintains the temperature gradient necessary for efficient heat dissipation despite the compact configuration.
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 configuration enhances heat dissipation performance, increases the heat exchange area, and allows for efficient control of power consumption by regulating the operation of heat radiators based on cooling water temperature, thereby improving the overall cooling efficiency in compact spaces.
Implementation Method 1
a heat sink that one side is in contact with the cooling water pipe and the other side is provided with a plurality of heat sink fins
Implementation Method 2
a heat sink fan that forms an air flow to the plurality of heat sink fins
Data Source
AI summary
An energy storage apparatus may include: a casing; a battery pack disposed inside the casing, and having a plurality of battery cells; a power converter disposed inside the casing; a pump that supplies cooling water to the battery pack or the power converter; and a heat radiator that cools cooling water flowing from the battery pack or the power converter. The heat radiator may include: a cooling water pipe in which cooling water flows; a heat sink that contacts with the cooling water pipe and having a plurality of heat sink fins disposed on the other side; a heat sink fan for forming an air flow to the plurality of heat sink fins; and a cover plate spaced from the heat sink, and formed with communicating holes.