Elastic Battery Pack Lid for Vibration-Isolated Cell Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery packs fail to effectively suppress vibration transmission from other vehicle components to battery cells, which can lead to durability and safety issues.
Innovation Solution
A battery pack design featuring a lid member made of elastic material, a reinforcement member, and a shock-absorbing material to reduce vibration transmission, along with a pressing portion to stabilize battery cells, and a restriction member to limit vertical displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the battery pack is fixed to the battery support member, then the battery pack is securely mounted, but vibration from the battery support member is transmitted to the battery cells
Solution Approach 1:
The lid member serves as an intermediary element between the battery support member and the battery case. It is fixed to both components, creating a decoupling mechanism that prevents direct vibration transmission while maintaining secure mounting stability
Solution Approach 2:
The lid member is made from elastic material, changing the mechanical parameters (rigidity, damping characteristics) of the connection between the battery support member and battery case. This material property change allows the lid to absorb and attenuate vibration while maintaining structural integrity
2Object-affected harmful factors
If the lid member is made from elastic material, then vibration transmission is reduced, but the rigidity required for secure fixing is compromised
Solution Approach 1:
Different parts of the lid member have different functional requirements. The lid member incorporates both elastic portions (for vibration absorption) and rigid fixing portions (for secure mounting). This local quality differentiation allows simultaneous achievement of vibration reduction and fixing strength
Solution Approach 2:
The lid member is formed from elastic material that combines damping properties with sufficient structural strength. This composite material approach allows the single component to simultaneously provide vibration attenuation and secure fixing capability
3Strength
If the battery case is directly contacted with the battery support member, then structural support is provided, but vibration and shock are directly transmitted to battery cells
Solution Approach 1:
The lid member acts as an intermediary that connects to both the battery support member and battery case, preventing direct contact between these rigid components. This decoupling interrupts the vibration and shock transmission path while maintaining structural support through the elastic lid
4Stability of the object's composition
If the battery cells are fixed firmly, then position stability is improved, but vibration from the mounting is transmitted more effectively to the cells
Solution Approach 1:
The lid member serves as a mediator that provides position stability to the battery cells while simultaneously acting as a vibration isolation barrier. The elastic material allows the cells to be securely positioned without direct rigid connection to the vibrating battery support member
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 reduces vibration transmission to battery cells, improves assembly efficiency, enhances durability by stabilizing battery cells, and prevents damage from intense vibrations.
Implementation Method 1
a lid member configured to close an opening in an upper portion of the battery case, wherein the lid member is fixed to a battery support member and is formed from an elastic material that reduces transmission of vibration of the battery support member to the battery case
Data Source
AI summary
A battery pack may house battery cells. The battery pack may include a battery case in which the battery cells are arranged; and a lid member configured to close an opening in an upper portion of the battery case. The lid member may be fixed to a battery support member and is formed from an elastic material that reduces transmission of vibration of the battery support member to the battery case.