External Battery Cooling Joint Layout to Prevent Enclosure Leaks
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Solution Overview
Problem
Conventional battery cooling systems occupy valuable space within the battery enclosure and are prone to leakage, posing safety hazards due to the internal placement of cooling liquid delivery pipes and water-cooling joints.
Innovation Solution
The battery cooling structure features a cooling liquid delivery pipe and water-cooling joints positioned on the outer side of the enclosure end plate, with a pagoda connection and sealing rings for secure sealing, and a unified interface for multiple pipes, optimizing space usage and preventing leakage from entering the enclosure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If cooling liquid delivery pipes and water-cooling joints are placed inside the battery enclosure, then cooling functionality is achieved, but available space is reduced and leakage risk increases
Solution Approach 1:
The water-cooling joint is extracted from the internal space of the battery enclosure and positioned on the outer side of the enclosure end plate. This extraction eliminates the joint from the confined internal volume, thereby increasing available space for battery cells while simultaneously removing the leakage risk source from the enclosed environment.
Solution Approach 2:
The cooling liquid delivery pipe is routed through the thickness direction of the enclosure end plate, transitioning from a two-dimensional planar arrangement to a three-dimensional spatial configuration. The pipe penetrates the end plate from the external cooling liquid supply, passes through the plate structure, and connects to internal cooling channels without occupying valuable internal battery space.
2Reliability
If multiple cooling liquid delivery pipes are provided, then cooling effectiveness is improved, but structural complexity increases
Solution Approach 1:
The enclosure end plate is designed with multi-functionality: it serves as both a structural component of the battery enclosure and as an integrated cooling liquid distribution manifold. Multiple cooling liquid delivery pipes can be connected to the external surface of the end plate, which then distributes cooling liquid through internally formed channels to multiple battery cell groups, thereby achieving effective multi-point cooling without proportionally increasing 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 configuration expands available space within the battery enclosure, enhances safety by preventing cooling liquid leakage inside, and simplifies the structure while maintaining effective cooling functionality.
Implementation Method 1
a cooling liquid circulates in the cooling channel so as to cool the battery modules
Implementation Method 2
The first water-cooling joint is provided with a plurality of sealing rings on an outer circumferential surface of a second end, and the second end is connected to the second cooling channel in a sealed manner by means of the sealing rings
Data Source
AI summary
Disclosed are a battery cooling structure, a battery and a power consuming device. The battery cooling structure comprises: a cooling liquid delivery pipe configured to deliver a cooling liquid to a battery enclosure; a cooling channel comprising a first cooling channel and a second cooling channel, the first cooling channel being provided in an enclosure bottom plate of the battery enclosure, the second cooling channel being provided in an enclosure end plate of the battery enclosure, and the first cooling channel and the second cooling channel being in communication with each other once the enclosure bottom plate and the enclosure end plate are combined; and a first water-cooling joint provided on an outer side of the enclosure end plate and comprising a first end and a second end, the first end being connected to the cooling liquid delivery pipe, and the second end being connected to the second cooling channel.