Battery Pack Insulating Film for Swelling Safety
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Solution Overview
Problem
Existing battery apparatuses face safety hazards due to swelling batteries coming into contact with the box cover, leading to potential deformation and vibration-induced issues.
Innovation Solution
A battery apparatus design featuring a battery pack with terminal components on surfaces other than the top, utilizing an insulating film on the top portion to prevent contact and incorporating buffer layers for additional support and noise reduction, which is easier to form and more flexible than traditional insulating plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional insulating plates are used to prevent battery contact with box cover, then safety is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent replaces traditional rigid insulating plates with a flexible insulating film that conforms to the battery surface. This film is easily formed and assembled, reducing structural complexity while maintaining the safety function of preventing battery contact with the box cover during swelling or vibration.
Solution Approach 2:
The insulating film is designed as a simple, easily replaceable component that can be quickly assembled and disassembled. This reduces assembly difficulty and allows for easy replacement if needed, while the film itself provides sufficient protection for the battery's operational lifespan.
2Reliability
If traditional insulating plates are used to prevent battery contact, then safety is improved, but weight and space consumption increase
Solution Approach 1:
The flexible insulating film is significantly thinner and lighter than traditional rigid insulating plates. It provides the necessary electrical insulation and physical protection without adding excessive weight or consuming valuable space within the battery apparatus.
3Ease of manufacture
If terminal components are located on top surfaces of batteries, then electrical connection is simplified, but safety hazards increase due to contact risk with box cover
Solution Approach 1:
The insulating film acts as an intermediary layer between the battery terminals and the box cover. It provides electrical insulation while allowing the terminals to remain in their optimal position for electrical connection, thus resolving the conflict between ease of manufacture and safety.
4Stability of the object's composition
If buffer layers are added for noise reduction and additional support, then vibration resistance is improved, but device complexity increases
Solution Approach 1:
The insulating film serves multiple functions simultaneously: it provides electrical insulation, acts as a buffer layer for vibration damping, reduces noise, and prevents direct contact between the battery and box cover. This multi-functionality improves vibration resistance without significantly increasing structural complexity.
Data Source
AI summary
The disclosure relates to the technical field of batteries, and in particular, relates to a battery apparatus, and the battery apparatus includes a battery pack. The battery pack includes a plurality of batteries arranged in a first direction, terminal components of the batteries are located on other surfaces of the batteries except the top surfaces, and an insulating film is provided on a top portion of the battery pack.