Battery Cooling Shunt Box Layout for Low-Resistance Flow
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Solution Overview
Problem
Existing battery cooling devices suffer from increased flow resistance and space occupation due to frequent bending of cooling pipelines, leading to reduced heat exchange efficiency and energy density.
Innovation Solution
A shunt device with a shunt box body featuring independent diversion cavities and a mounting structure that separates cooling medium flow into non-communicating channels, eliminating the need for joint structures and integrating water inlet and outlet passages within the shunt box body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cooling pipelines are frequently bent for setting, then the cooling device can be installed in various positions, but the flow resistance increases and space occupation increases
Solution Approach 1:
The cooling pipeline is divided into multiple straight sections connected by connection pieces. Each section maintains a straight configuration to minimize flow resistance, while the connection pieces enable angular connections for installation flexibility. This segmentation allows the system to achieve adaptability without increasing overall flow resistance.
Solution Approach 2:
The connection pieces are designed with nested structures that allow straight pipeline sections to be connected at angles. The inner connection piece fits within the outer connection piece, creating a compact joint structure that enables directional changes without requiring bent pipelines, thus maintaining low flow resistance while providing installation versatility.
2Adaptability or versatility
If cooling pipelines are frequently bent for setting, then the cooling device can be installed in various positions, but a large space is occupied
Solution Approach 1:
The cooling pipeline system is segmented into straight sections with separate connection pieces. This allows the pipeline to achieve directional changes through discrete joints rather than continuous bending, reducing the space required for installation while maintaining installation flexibility.
Solution Approach 2:
The connection pieces utilize multi-dimensional spatial arrangement to enable angular connections between straight pipeline sections. By transitioning from a single-bending-dimension approach to a multi-dimensional joint structure, the system achieves installation versatility without occupying excessive linear space.
3Ease of manufacture
If joint structures are used for cooling pipelines, then the pipelines can be connected and disassembled, but the flow rate and flow speed of cooling medium are affected
Solution Approach 1:
The connection pieces are designed with locally optimized flow channels that match the diameter and flow characteristics of the main pipeline. This local quality optimization ensures that the joint structures do not create flow constrictions or turbulence, maintaining high flow rate and flow speed while enabling assembly and disassembly capability.
4Reliability
If water inlet passages and water outlet passages are set at both ends of the battery module, then the cooling coverage is improved, but the space occupation increases and energy density decreases
Solution Approach 1:
The shunt box is designed as a multi-functional component that integrates both water inlet and water outlet passages, along with distribution channels for directing cooling medium to multiple cooling components. This universal structure provides comprehensive cooling coverage while occupying minimal space, as it consolidates multiple functions into a single integrated unit rather than requiring separate passages at both ends of the battery module.
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 ensures high flow rate and flow speed of the cooling medium, reduces space occupation, and enhances energy density and cooling efficiency, thereby improving the safety and performance of battery packs.
Implementation Method 1
The cooling pipelines are utilized for shunting the cooling medium, and the cooling components are utilized for heat exchange with the battery modules
Data Source
Figure 1
Figure 2
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AI summary
The present disclosure relates to the field of battery technology, specifically to a shunt device, a cooling device (10), a battery pack (20) and an electrical device. The shunt device includes: a shunt box body (100) and a mounting structure disposed on the shunt box body, wherein the shunt box body internally has a first diversion cavity (110) and a second diversion cavity (120) that are not connected to each other; the mounting structure includes an mounting channel (130) and a separating panel (140), the mounting channel is disposed on the shunt box body and is connected to both the first diversion cavity and the second diversion cavity. The separating component is disposed inside the mounting channel, the separating component divides the mounting channel into a first communicating channel and a second communicating channel.