Alternating Cooling Fin Guide Orientation for Battery Swelling
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Solution Overview
Problem
The existing battery modules experience deformation and safety issues due to concentrated swelling of battery cells, which leads to damage, and additional structures are required to mitigate these issues, increasing size and weight.
Innovation Solution
The cartridges in the battery module are arranged such that the mounting directions of the guide parts of the cooling fins on adjacent cartridges are opposite to each other, distributing the swelling phenomenon and preventing deformation without additional components, while maintaining a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional structures are inserted between cartridges to suppress deformation, then the safety and stability of the battery module is improved, but the size and weight of the battery module increase
Solution Approach 1:
The cooling fin's guide part serves dual functions: it maintains the cooling fin's position during normal operation and suppresses swelling of the battery cell during abnormal operation. The existing structure serves itself to prevent deformation without requiring additional components, thereby improving safety without increasing weight.
Solution Approach 2:
The guide part of the cooling fin is designed to perform multiple functions: it guides the cooling fin during assembly, maintains positional stability during normal operation, and acts as a swelling suppression structure during abnormal conditions. This multi-functionality eliminates the need for separate swelling suppression structures, avoiding increased weight and size.
2Stability of the object's composition
If additional structures are inserted between cartridges to suppress deformation, then the stability of the battery module is improved, but the size of the battery module increases
Solution Approach 1:
The cooling fin's guide part serves dual functions: it maintains the cooling fin's position during normal operation and suppresses swelling of the battery cell during abnormal operation. The existing structure serves itself to prevent deformation without requiring additional components, thereby improving stability without increasing size.
Solution Approach 2:
The guide part of the cooling fin is designed to perform multiple functions: it guides the cooling fin during assembly, maintains positional stability during normal operation, and acts as a swelling suppression structure during abnormal conditions. This multi-functionality eliminates the need for separate swelling suppression structures, avoiding increased size.
3Ease of manufacture
If guide parts of cooling fins are mounted in the same direction in all cartridges, then the manufacturing process is simplified, but the swelling phenomenon concentrates in one lateral direction causing intensive deformation
Solution Approach 1:
The guide parts of cooling fins in adjacent cartridges are mounted in opposite directions, creating an asymmetric arrangement. This asymmetry ensures that when swelling occurs in one cartridge, the cooling fin's guide part acts as a barrier in the opposite direction, preventing concentrated deformation and distributing stress across the battery module.
4Stability of the object's composition
If guide parts of cooling fins are mounted in opposite directions in adjacent cartridges, then the swelling phenomenon is distributed and deformation is prevented, but the manufacturing complexity increases
Solution Approach 1:
The cooling fin's guide part serves dual functions: it maintains the cooling fin's position during normal operation and suppresses swelling of the battery cell during abnormal operation. The existing structure serves itself to prevent deformation without requiring additional components, thereby improving safety without increasing weight.
Solution Approach 2:
The guide part of the cooling fin is designed to perform multiple functions: it guides the cooling fin during assembly, maintains positional stability during normal operation, and acts as a swelling suppression structure during abnormal conditions. This multi-functionality eliminates the need for separate swelling suppression structures, avoiding increased size.
Data Source
AI summary
Provided is a battery module including a plurality of cartridges stacked with a battery cell interposed therebetween, wherein each of the cartridges includes: a cooling fin having a plate-shaped structure contacting an outer surface of the battery cell; and a cartridge frame which has a hollow structure and to which an outer peripheral edge of the cooling fin is fixed, wherein, each of guide parts, which is mounted in one side- or the other side-direction of the cartridge frame, is disposed on the outer peripheral edge of the cooling fin so as to fix the cooling fin in position with respect to the cartridge frame, and the cartridges are arranged so that directions in which the guide parts of the cooling fins are mounted with respect to the cartridge frames are opposite to each other in adjacent cartridges.