Battery Connection Module Sealing Mechanism for Liquid Cells
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Solution Overview
Problem
Existing battery devices assembled with liquid battery cells face challenges in convenient assembly and effective sealing, as previous technologies primarily focus on solid battery blocks, leading to differences in assembling structure and electrode connection design.
Innovation Solution
A battery connection module comprising a circuit board with busbars and a covering mechanism, featuring sealing units with covers, first and second sealing members, and fixing posts, which allows for easy assembly and liquid-tight sealing of liquid battery cells, enabling series connection of electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a battery device is assembled with liquid battery cells using conventional solid battery block assembling techniques, then the assembling structure and electrode connection design can be maintained, but the assembly process becomes complex and sealing effectiveness deteriorates
Solution Approach 1:
The invention divides the connection structure into modular components: separate busbars for each battery cell, individual sealing members for each cell, and a structured circuit board with designated connection regions. This segmentation allows independent assembly of each battery cell unit, simplifying the overall assembly process while maintaining structural organization and reducing complexity.
2Reliability
If conventional sealing methods are used for liquid battery cells, then assembly can proceed with standard procedures, but sealing effectiveness deteriorates due to structural differences from solid battery blocks
Solution Approach 1:
The invention introduces a dedicated sealing member as an intermediary component between the battery cell and the connection structure. This sealing member specifically addresses the sealing needs of liquid battery cells, ensuring reliable sealing while allowing the assembly process to follow standardized procedures. The sealing member acts as a mediator that adapts the connection structure to accommodate liquid battery cells without requiring complex custom assembly procedures.
3Reliability
If busbars are directly connected to circuit board without proper sealing structure, then electrode connection is achieved, but battery liquid leaks through the connection structure
Solution Approach 1:
The invention merges the sealing function with the electrode connection function by integrating the sealing member into the busbar-circuit board connection structure. The sealing member is positioned at the connection interface between the busbar and the circuit board, combining the electrical connection pathway with the sealing barrier. This integration ensures that battery liquid is prevented from leaking through the connection structure while maintaining the necessary electrical connectivity, without requiring entirely separate sealing and connection systems.
Data Source
AI summary
A battery connection module and a battery device are provided. The battery device comprises a battery box and a battery connection module. The battery connection module comprises a circuit board, a plurality of busbars and a covering mechanism. The plurality of busbars are provided to a bottom surface of the circuit board in two rows spaced apart from each other. Each busbar has a main body portion connecting with the circuit board and at least two electrode connecting portions. The covering mechanism is provided to the bottom surface of the circuit board and comprises a plurality of sealing units. Each sealing unit comprises a cover, two first sealing members and a second sealing member. The cover has two openings, the two openings are respectively sheathed on two corresponding electrode connecting portions which are positioned along the second direction and respectively belong to the two rows of the busbars, the two first sealing members are respectively positioned in the two openings to liquid-tight seal a gap between the cover and the corresponding electrode connecting portion, the second sealing member is positioned in the corresponding chamber to liquid-tight seal a gap between the cover and the box body.