Battery Housing Cooling Channels for Uniform Fluid Distribution
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Solution Overview
Problem
Existing battery housing designs face challenges in fluid distribution within duct systems, leading to pressure differences and turbulence, which can compromise the efficiency and stability of temperature control systems, especially with advanced battery cell technologies.
Innovation Solution
A battery housing design featuring channels that extend in different directions with a guide structure for uniform fluid distribution, utilizing a star-shaped course of restriction elements to ensure laminar flow and minimize pressure differences, combined with a hybrid material composition for enhanced thermal conductivity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling channels are integrated parallel to each other in the housing, then heat exchange between housing interior and fluid is enabled, but pressure differences and turbulence occur due to different distances of individual channels to the center
Solution Approach 1:
The housing side surface is divided into multiple segments corresponding to different cooling channels, with each segment having a restricted opening. This segmentation allows independent control of fluid distribution to each channel, eliminating the problem of unequal fluid distribution caused by varying distances from the center.
Solution Approach 2:
Different regions of the housing side surface are provided with different numbers and sizes of restricted openings according to the specific cooling requirements of each channel. This local differentiation ensures that each channel receives the appropriate amount of fluid, optimizing heat exchange while maintaining stable fluid distribution.
2Ease of operation
If free spaces are provided on housing side for fluid distribution, then fluid can be introduced centrally, but complex structure is required for communication with temperature control connections
Solution Approach 1:
The duct system is merged directly into the housing wall structure, with channels formed as integral parts of the housing. The restricted openings are directly provided in the housing side surface, eliminating the need for separate free spaces and complex connection structures, thereby simplifying the overall system while maintaining ease of fluid access.
3Reliability
If channels extend in different directions along housing side, then fluid distribution can be improved, but manufacturing complexity increases
Solution Approach 1:
The housing structure is designed to serve multiple functions: it provides structural support, contains the cooling channels, and directly provides the restricted openings for fluid distribution. This multi-functionality eliminates the need for separate components, simplifying manufacturing while achieving uniform fluid distribution through channels extending in different directions.
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 design achieves stable and compact fluid distribution, reducing turbulence and enhancing heat exchange efficiency while maintaining a lightweight and cost-effective manufacturing process.
Implementation Method 1
cooling channels parallel to each other in the housing to enable heat exchange between the housing interior and the fluid, which is guided through the cooling channels
Data Source
AI summary
The invention relates to a battery housing (1), in particular for a starter battery for a vehicle, having a housing interior (2) for an arrangement of a plurality of battery cells (3), and a housing unit (10) which at least partially surrounds the housing interior (2) and has a duct system (20) with a plurality of channels (21) for guiding a fluid for temperature control of the housing interior (2). Furthermore, the invention relates to a battery (4), as well as a method for manufacturing a battery (4).