Liquid-Cooled Battery Module Structure to Prevent Cooling Plate Deformation
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Solution Overview
Problem
Current liquid-cooled battery modules suffer from deformation-induced reduced service life of the liquid-cooling plate and compromised heat dissipation due to heat transfer between the liquid-cooling plate and mounting beams, which affects the effective cooling of batteries.
Innovation Solution
A liquid-cooled battery module design featuring a housing with connecting portions on opposite side walls, allowing a non-contact connection between the heat-dissipating component and the side walls, preventing deformation and maintaining effective heat transfer between the heat-dissipating component and the battery pack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the liquid-cooling plate is fixed to the bottom of the battery module by mounting the side plate on it, then the liquid-cooling plate can be positioned and support the battery structure, but the heavy battery module causes deformation of the side plate during suspending, which indirectly deforms the liquid-cooling plate and reduces its service life
Solution Approach 1:
The invention separates the mounting function from the heat dissipation function by introducing an independent mounting structure (mounting ears on end plates) that is distinct from the liquid-cooling plate. This segmentation allows the mounting structure to bear mechanical loads while the liquid-cooling plate remains isolated from deformation stresses, thereby extending its service life while maintaining structural stability.
2Temperature
If the liquid-cooling plate is used for heat dissipation, then the batteries can be cooled effectively, but heat transfer occurs between the liquid-cooling plate and the mounting beam through the side plate, reducing the heat dissipation effect
Solution Approach 1:
The invention extracts the mounting function from the liquid-cooling plate system by providing dedicated mounting ears on the end plates. This removal of the mounting connection path eliminates the unwanted heat transfer channel between the liquid-cooling plate and mounting beam, ensuring that heat dissipation is not compromised by parasitic heat loss through the side plate.
3Device complexity
If the side plate is used for both mounting and structural support, then the structure is simplified, but the deformation of the side plate during suspending indirectly causes deformation of the liquid-cooling plate
Solution Approach 1:
The invention introduces mounting ears as an intermediary structure between the end plates and the mounting beam. These mounting ears serve as a dedicated mechanical connection interface that isolates the liquid-cooling plate from direct mechanical stresses during suspension, preventing deformation while adding minimal structural complexity.
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 design enhances the structural stability and service life of the liquid-cooling plate while ensuring efficient heat dissipation from the battery pack, reducing the risk of thermal runaway.
Implementation Method 1
heat transfer will occur between the liquid-cooling plate and the mounting beam through the side plate
Data Source
AI summary
The disclosure discloses a liquid-cooled battery module and a battery pack. The liquid-cooled battery module includes a housing, the outer side surfaces of the two opposite side walls of the housing are provided with connecting portions, so that the liquid-cooled battery module is connected to the battery pack through the connecting portions; a single battery pack, which is disposed in the housing; further includes a heat-dissipating component, which is disposed at the bottom of the housing and connected with the single battery pack. In the vertical direction, the top surface of the heat-dissipating component is spaced apart from the bottom surface of two opposite side walls provided with the connection portions.