Battery Pack Supporting Piece Layout for Assembly and Cell Cooling
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Solution Overview
Problem
Existing battery assembly processes are complicated due to complex bracket structures, which increase assembly difficulty and hinder cell heat dissipation.
Innovation Solution
A battery pack design featuring a housing with a supporting piece that connects cells using a simple structure, allowing for easy assembly and enhanced heat dissipation through strategically placed protrusions and grooves, along with a buffer to absorb shock and protect cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cells are fixed in the housing using a bracket, then the cells are securely fixed, but the bracket structure becomes complex and assembly difficulty increases
Solution Approach 1:
The patent combines the bracket structure with the housing into an integrated design where the housing itself provides the fixation function. The housing includes fixing protrusions that directly engage with the battery cells, eliminating the need for a separate complex bracket structure while maintaining secure cell fixation.
Solution Approach 2:
The housing is designed to serve multiple functions: it provides structural containment for the battery cells and simultaneously provides fixation through integrated protrusions. This multi-functional design eliminates the need for separate fixation components, reducing overall device complexity.
2Reliability
If cells are fixed in the housing using a bracket, then the cells are securely fixed, but the assembly process becomes more difficult
Solution Approach 1:
By merging the fixation function into the housing structure itself, the number of separate assembly steps is reduced. The housing is assembled once with its integrated fixing protrusions already in place, and the cells are directly mounted to these protrusions, simplifying the overall assembly process compared to installing a separate bracket first.
Solution Approach 2:
The fixation system is segmented into simple, discrete fixing protrusions on the housing that can be independently positioned and engaged. This segmentation allows for straightforward assembly where each protrusion serves as an independent mounting point, making the assembly process more manageable and less complex.
3Reliability
If cells abut against the housing, then the cells are fixed in position, but heat dissipation of the cells is hindered
Solution Approach 1:
The patent introduces spacing structures that create dimensional separation between the battery cells and the housing walls. These spacing elements provide gaps in the radial direction, allowing heat to dissipate from the cell surfaces that would otherwise be in direct contact with the housing, while the cells remain positionally stable through the fixing protrusions.
Solution Approach 2:
Spacing structures act as intermediary elements between the battery cells and the housing. These intermediaries maintain the necessary positional stability of the cells while simultaneously providing thermal pathways for heat dissipation, resolving the conflict between mechanical support and thermal management.
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 simplifies the assembly process, reduces component complexity, and improves heat dissipation and shock protection for the cells, making the battery pack more efficient and durable.
Implementation Method 1
one side of the buffer is connected to the supporting piece and another opposite side is connected to a cell arranged adjacent to the supporting piece... when the cell shakes, the buffer can alleviate the impact force between the cell and the supporting piece
Data Source
AI summary
A battery pack includes a housing, a plurality of cells disposed in the housing, and a supporting piece. The plurality of cells are stacked in a first direction, the supporting piece is disposed between two cells, and the supporting piece includes a first supporting portion and a second supporting portion arranged opposite each other. In a second direction, the housing includes a first protrusion and a second protrusion, the supporting piece is disposed between the first protrusion and the second protrusion, the first supporting portion is connected to the first protrusion and the second supporting portion is connected to the second protrusion, and the second direction is a width direction of the housing.