Waterproof Battery Pack Terminal Structure for Vibration-Stable Assembly
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Solution Overview
Problem
Conventional battery packs face challenges in waterproofing and stable electrode terminal fastening, leading to water penetration and disconnection issues during vibrations, making assembly cumbersome and prone to electric shock.
Innovation Solution
A battery pack design featuring a waterproof structure with an upper and lower pack cover, electrode terminals with protrusions and penetration parts, and waterproof members to prevent water ingress, along with a manufacturing method that includes coupling the BMS and electrode terminals with waterproof members for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a thick wire is used to connect the electrode terminal due to high output requirements, then the power transmission capability is improved, but the fastening of the electrode terminal becomes difficult and the assembly process becomes cumbersome
Solution Approach 1:
The connection structure is divided into multiple components: the electrode terminal with external threading, the nut for fastening, and the wire. This segmentation allows the thick wire to be connected through a standardized threading mechanism rather than direct fastening, making the assembly process easier while maintaining high power transmission capability
Solution Approach 2:
The electrode terminal is designed with external threading that can universally accommodate standard nuts and wire connections. This multi-functional design allows the same terminal structure to handle both high current transmission and secure mechanical fastening, simplifying the overall assembly process
2Ease of manufacture
If the electrode terminal and wire are coupled without fixation, then the assembly process is simplified, but the connection becomes disconnected when vibrations occur
Solution Approach 1:
The electrode terminal is pre-equipped with external threading during manufacturing. This preliminary action ensures that the terminal is ready for secure wire connection before assembly, maintaining connection stability under vibration while keeping the actual assembly process simple through standardized fastening components
3Object-affected harmful factors
If conventional waterproof structures are used, then water penetration is prevented, but the assembly process becomes cumbersome and connection stability is compromised
Solution Approach 1:
The waterproof function is extracted as a separate feature through the waterproof member that specifically seals the connection interface between the electrode terminal and the battery module. This allows the main assembly process to remain simple while providing dedicated waterproof protection where needed
Data Source
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AI summary
The present invention relates to a battery pack having waterproof function and manufacturing method therefor, and more particularly, to a battery pack which prevents water penetration from the outside, is provided with a stable electrode terminal fastening structure, and thereby has a waterproof function that firmly retain fastening even when a vibration is generated, and a method for manufacturing the same.