Battery Module End Plate Buffer Structure for Impact Protection
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Solution Overview
Problem
Existing battery modules face challenges in protecting internal elements from external impacts, leading to potential damage and instability.
Innovation Solution
An end plate assembly with a buffer part and insulating cover design that includes an elastic member to absorb external impacts and enhance structural stability, featuring a protruding buffer part to shield elements like bus bars and connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a plate defining outer peripheries of secondary batteries is used, then structural stability is improved, but impact absorption capability deteriorates
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a buffer member between the end plate and the secondary battery. This buffer member is positioned in advance to absorb impacts before they reach the battery, preventing direct transmission of external forces. The buffer member acts as a pre-positioned protective element that cushions against harmful impacts while maintaining the structural stability provided by the rigid end plate.
Solution Approach 2:
The patent employs composite materials by combining the rigid end plate (providing structural stability) with a buffer member made of elastomeric or foam material (providing impact absorption). This composite structure integrates two materials with complementary properties - the rigid plate maintains structural integrity while the flexible buffer member absorbs external impacts, thereby resolving the contradiction between structural stability and impact protection.
2Ease of operation
If elements such as bus bar or connector are exposed for electrical connection, then ease of operation is improved, but vulnerability to external impact deteriorates
Solution Approach 1:
The patent applies the nested doll principle by placing the buffer member inside the space between the end plate and the battery, with the buffer member nested around the exposed electrical elements. This nested configuration allows the buffer member to surround and protect the bus bars and connectors without preventing access to them. The protective buffer is nested within the existing structure, providing shielding while maintaining operational accessibility.
Solution Approach 2:
The buffer member serves as an intermediary element positioned between the external environment and the exposed electrical elements. This intermediary buffer member mediates the interaction between external impacts and the vulnerable electrical components, absorbing and dissipating impact forces before they can damage the bus bars or connectors, while still allowing electrical connections to be made.
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 effectively mitigates external impacts, protecting internal elements and improving structural stability of battery modules.
Implementation Method 1
a buffer part (110) provided at an edge of the end plate (100)
Data Source
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AI summary
A battery module according to an embodiment of the present invention includes a plurality of batteries, and an end plate disposed outside the plurality of batteries and provided with a buffer part at an edge adjacent to elements that are electrically connected to the plurality of batteries.