Button Battery Adapter Structure for Stable Pin Connection
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Solution Overview
Problem
Current battery pack structures for button batteries are not conducive to stability, as the positive and negative pins are not firmly secured, affecting the battery's stability and performance.
Innovation Solution
A battery design featuring a shell, top cover, and adapter parts with specific connection sheets and pins that provide electrical connections and positioning, enhancing stability and performance by ensuring secure attachment and insulation, thereby preventing adapter breakage and ensuring reliable electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If common positive pin and negative pin are used as wires connected to electrode tabs, then the battery pack structure is simple, but the pins cannot be firmly set affecting stability
Solution Approach 1:
The adapter is segmented into multiple functional parts: a body portion that interfaces with the battery cell, a connection sheet for electrical connection, and extension portions that extend outward. This segmentation allows each part to perform its specific function optimally while maintaining overall structural stability.
Solution Approach 2:
The adapter is pre-assembled with the connection sheet and extension portions before being installed in the battery pack. The connection sheet is pre-positioned to ensure proper electrical contact with the electrode tab, and the extension portions are pre-configured to provide stable external connections, eliminating the need for firm setting after assembly.
2Reliability
If pins are used as simple wires for electrical connection, then the manufacturing process is simple, but the electrical connection reliability is poor
Solution Approach 1:
The adapter merges multiple functions into a single integrated component: electrical connection (through the connection sheet), mechanical support (through the body portion), and external interfacing (through the extension portions). This integration ensures reliable electrical connection while maintaining ease of manufacture through a unified structure that can be produced as a single piece or pre-assembled unit.
Solution Approach 2:
The connection sheet acts as an intermediary between the electrode tab and the extension portions. It provides a dedicated electrical connection interface that ensures reliable current flow while allowing the extension portions to be positioned optimally for external connections, thereby improving electrical connection reliability without complicating the manufacturing process.
3Strength
If the adapter structure is simplified to use basic pins, then the device complexity is low, but the adapter may break affecting performance
Solution Approach 1:
The adapter applies local quality by concentrating structural strength where needed: the body portion is designed with sufficient thickness and rigidity to provide mechanical support and prevent breakage, while the extension portions are optimized for their specific interfacing functions. This localized strengthening ensures adapter durability without requiring overall structural complexity.
Solution Approach 2:
The adapter employs composite construction by combining different material properties in different sections: the body portion uses materials with high strength and rigidity to prevent breakage, while the connection sheet and extension portions use materials optimized for electrical conductivity and flexibility. This composite approach enhances overall adapter strength while maintaining manageable structural complexity.
Data Source
AI summary
The present application provides a battery including a shell, a top cover, a battery cell, and a second adapter part. The top cover seals an upper end of the shell and forms a cavity together with the shell, and the battery cell is located in the cavity. The shell includes a side wall surrounding the cavity and a bottom shell arranged at a lower end of the side wall. The battery cell has a first tab and a second tab, the bottom shell is electrically connected to the second tab, the second adapter part includes a second connection sheet and a second pin, the second adapter part is connected to the bottom shell through the second connection sheet; one end of the second pin is connected to the second connection sheet, and the other end thereof extends out of an outer edge of the bottom shell.