Dual-Sided Battery Cooling Layout for Uniform Temperature Control
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Solution Overview
Problem
Existing battery cooling devices exhibit uneven cooling performance, with the refrigerant cooling the battery more effectively on the upstream side and less effectively on the downstream side, leading to mixed cooling results across the battery surface.
Innovation Solution
A battery cooling device with a refrigerant distribution system that splits into two paths, utilizing one-side and other-side heat exchangers arranged on opposite surfaces of the battery, with reversed refrigerant flow directions to compensate for varying cooling capacities, ensuring even cooling across the entire battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a large number of heat dissipation fins are arranged in the heat dissipation component, then heat dissipation performance is improved, but the device occupies more space and becomes more complex
Solution Approach 1:
The heat dissipation fins are nested within the hollow interior cavity of the battery housing, forming an integrated structure where the heat dissipation component and housing combine into a unified assembly, reducing overall device complexity while maintaining effective heat dissipation surface area
Solution Approach 2:
The heat dissipation component is merged with the battery housing to form an integrated structure, where the housing itself serves as part of the heat dissipation system through its hollow cavity containing fins, reducing the number of separate components
2Strength
If the battery housing wall thickness is increased to prevent deformation, then structural strength is improved, but the available internal space for heat dissipation fins is reduced
Solution Approach 1:
The heat dissipation fins are nested within the hollow interior cavity of the battery housing, maximizing the use of the available internal space without requiring additional wall thickness, thus preserving both structural strength and heat dissipation capacity
Solution Approach 2:
The heat dissipation fins extend along the length of the battery housing, utilizing the longitudinal dimension for heat dissipation surface area rather than requiring increased radial space through wall thickness
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 device achieves uniform cooling of the battery by balancing cooling capacities across its surfaces, eliminating temperature variations and enhancing overall cooling efficiency.
Implementation Method 1
a heat dissipation component (30), wherein the heat dissipation component (30) comprises a heat dissipation fin
Implementation Method 2
the housing (110) is provided with a through hole (113) communicating with the interior cavity (111) and a cooling liquid inlet (121) and a cooling liquid outlet (122) are respectively formed in the housing (110)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery cooling device capable of cooling an entire battery more evenly is provided. A battery cooling device (30) includes a one-side heat exchanger (40) configured to cool a one side surface (20u), and an other-side heat exchanger (50) configured to cool the other side surface (20d), which is a surface facing the one side surface (20u). The one-side heat exchanger (40) includes heat exchange units from a one-side first heat exchange unit (41, 41A) to a one-side nth heat exchange unit (44, 44A) in an order in which refrigerant flows. The other-side heat exchanger (50) includes heat exchange units from an other-side nth heat exchange unit (54, 54A) to an other-side first heat exchange unit (51, 51A) in the order in which refrigerant flows. The other-side first heat exchange unit (51, 51A) to the other-side nth heat exchange unit (54, 54A) are provided at positions where the other-side first heat exchange unit (51, 51A) to the other-side nth heat exchange unit (54, 54A) face the one-side first heat exchange unit (41, 41A) to the one-side nth heat exchange unit (44, 44A), respectively.