Battery Module End Panel With Floating Electrical Connection
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Solution Overview
Problem
Existing battery modules suffer from damage to circuit boards due to bending deformation of end panels caused by cyclic expansion of cells, leading to potential safety hazards.
Innovation Solution
A battery module design featuring an end panel assembly with a floating connection assembly that allows the electrical structure to move independently of the end panel deformation, using a sliding mechanism and position-limiting structures to maintain the electrical structure's straightness during cell expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control devices are fixedly connected to the existing end panels, then the electrical structure is securely mounted, but the circuit boards within the control devices are damaged due to bending deformation during cell expansion
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a fixed connection to a movable connection. The floating connection assembly includes a sliding mechanism that allows the electrical structure to move dynamically with the end panel during cell expansion, preventing bending damage while maintaining secure mounting. The sliding groove and sliding block enable controlled movement in the expansion direction.
Solution Approach 2:
The floating connection assembly acts as an intermediary between the end panel and the electrical structure. It includes a floating base connected to the end panel and a sliding mechanism that mediates the interaction, allowing the electrical structure to move independently relative to the end panel deformation, thus protecting the circuit boards from bending damage.
2Reliability
If the floating connection assembly allows movement to prevent bending damage, then the electrical structure is protected, but the device complexity increases due to additional sliding mechanisms and position-limiting structures
Solution Approach 1:
The patent employs a sliding mechanism within the floating connection assembly that provides flexible movement capability. The sliding groove and sliding block create a simple yet effective flexible connection that allows the electrical structure to move with end panel deformation without requiring complex mechanisms, thus protecting the electrical structure while maintaining relatively simple device architecture.
3Shape
If the floating connection assembly is allowed to move freely to accommodate expansion, then the electrical structure maintains straightness, but the assembly may detach or malfunction due to excessive movement
Solution Approach 1:
The patent applies preliminary anti-action by incorporating position-limiting structures before excessive movement can occur. The first position-limiting structure prevents the floating connection assembly from moving too far in the expansion direction, while the second position-limiting structure prevents movement in the opposite direction. These structures proactively counteract potential detachment or malfunction by establishing movement boundaries in advance.
Solution Approach 2:
The floating connection assembly combines dynamic movement capability with stability control. The sliding mechanism allows the electrical structure to move dynamically with end panel expansion to maintain straightness, while the position-limiting structures ensure the movement remains within safe boundaries, preventing detachment or malfunction.
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
Prevents damage to electrical components by allowing the electrical structure to move with the end panel deformation, ensuring the safety and integrity of the battery module.
Implementation Method 1
The floating base is connected with an elastic claw that may stretch and shrink along the second direction
Data Source
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AI summary
Provided are a battery module and a battery pack. The battery module includes an end panel assembly (100), including an end panel body (110) and a floating connection assembly (800) slidably connected to the end panel body (110); an electrical structure (700), wherein a part of the electrical structure (700) is connected to a first area (111a) of a first panel (111) while the other part of the electrical structure (700) is connected to a second area (111b) of the first panel (111); and a cell (510), disposed on one side close to the second panel (112). The electrical structure (700) as a whole moves with the first area (111a) away from the cell (510) relative to the second area (111b), and the floating connection assembly (800) moves away from the cell (510) relative to the end panel body (110) when the cell (510) is in an expanded status.