Battery Module Fluid Connection Clamping Design
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Solution Overview
Problem
Current battery module assembly for high-voltage accumulators in electric vehicles is costly and prone to temperature-related issues due to the need for integral bonding of fluid lines to the heat sink, which complicates the assembly process and increases the risk of damage to sensitive components.
Innovation Solution
The battery module design features a clamping device that secures fluid connections without integral bonding, allowing the fluid line to be connected via a seal to the connection units, which are clamped together, reducing assembly complexity and eliminating the need for soldering, and positions fluid inlets and outlets in an upper region for improved accessibility and reduced structural stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If integral bonding is used to connect fluid lines to the heat sink, then the connection is strong and reliable, but the assembly process becomes complex and costly, and sensitive components are at risk of damage
Solution Approach 1:
The patent divides the fluid connection system into separate modular components: connection units that attach to the heat sink and connection pieces that attach to the fluid lines. These segmented components are joined through a clamping mechanism rather than integral bonding, simplifying assembly while maintaining connection reliability.
Solution Approach 2:
The patent introduces a clamping device as an intermediary mechanism between the connection units and connection pieces. This clamping mechanism provides a reliable connection alternative to integral bonding, reducing assembly complexity and avoiding damage to sensitive components during the connection process.
2Reliability
If fluid inlets and outlets are positioned in the lower region near the heat sink, then the cooling efficiency is improved, but the accessibility for assembly and maintenance is reduced
Solution Approach 1:
The patent repositions the fluid inlets and outlets from the lower region near the heat sink to the upper region of the battery module. This spatial relocation in the vertical dimension improves accessibility for assembly and maintenance operations while maintaining effective cooling through the extended fluid line connections.
3Stability of the object's composition
If traditional assembly methods with flywheel masses are used, then structural stability is maintained, but temperature-related risks and assembly costs increase
Solution Approach 1:
The patent removes the flywheel masses from the traditional assembly structure. By extracting these components, the design eliminates temperature-related risks associated with traditional assembly methods while maintaining structural stability through the alternative clamping-based connection system between battery cells and the heat sink.
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 reduces assembly costs, minimizes temperature-related risks, enhances the module's durability by avoiding flywheel masses, and simplifies the assembly process while ensuring effective sealing and reduced pressure losses, resulting in a more robust and efficient battery module.
Implementation Method 1
at least one plate-shaped heat sink (4) with at least one cooling channel system (13), which is connected to the electric storage cells (2) in a thermally conductive manner
Implementation Method 2
the fluid line (17, 18) is connected to at least one of the two connection units (6, 7, 8, 9) via at least one seal (19, 20)
Data Source
AI summary
A high-voltage accumulator battery module includes a first connection component adjacent to a plate-shaped frame component remotely from a heat sink. The first connection component includes at least one of: an inlet first connection unit having a fluid inlet connected to a cooling channel system via an inlet fluid line connecting the fluid inlet to an inlet second connection unit connected to the cooling channel system, and an outlet first connection unit having a fluid outlet connected to the cooling channel system via an outlet fluid line connecting the fluid outlet to an outlet second connection unit connected to the cooling channel system. A second connection component is adjacent to the plate-shaped frame component at the heat sink side, and includes at least one of: the inlet second connection unit, and the outlet second connection unit. A clamping device clamps the first and second connection components against each other.