Secondary Battery Side Case Sliding Guide Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing manufacturing process for inner battery packs is complex and prone to defects due to the use of molding resin, which is difficult to handle in an amorphous state, leading to non-uniform injection and increased defect rates, limiting the discharge capacity for small high-functionality electronic devices.
Innovation Solution
A secondary battery design featuring a side case that slides over the battery body, allowing for easier assembly and disassembly, with a guide member and protective circuit board that are electrically connected, reducing the complexity of the manufacturing process and enabling more efficient production and repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If molding resin is used to couple the protective circuit board to the bare cell, then the inner pack can be manufactured, but the process becomes complex and defect rates increase due to difficulty in handling amorphous molding resin
Solution Approach 1:
The patent extracts the protective circuit board and bare cell from the molding resin coupling process. Instead of using molding resin to integrate these components, the invention allows them to be separately assembled and positioned, eliminating the handling difficulties and defects associated with amorphous molding resin while maintaining the functional integration of the battery pack.
Solution Approach 2:
The patent segments the battery pack into distinct modular components (bare cell, protective circuit board, side case) that can be manufactured and assembled separately. This segmentation eliminates the need for complex molding resin integration, allowing each component to be produced independently and assembled without the defects associated with amorphous resin handling.
2Ease of manufacture
If molding resin is injected into the molding space, then the bare cell and protective circuit board are coupled, but non-uniform injection occurs due to the amorphous state of the resin
Solution Approach 1:
The patent removes the molding resin injection process entirely from the manufacturing method. The protective circuit board and bare cell are coupled through mechanical assembly rather than resin injection, eliminating the non-uniform injection defects that occur when handling amorphous molding resin while still achieving secure component coupling.
3Ease of manufacture
If molding resin is used to integrate the core pack, then the components are coupled together, but the viscous resin makes it difficult to repeat the molding process when defects occur
Solution Approach 1:
The patent extracts the components from the viscous molding resin integration process. By using mechanical coupling methods instead of resin integration, the system allows defects to be corrected by simply disassembling and reassembling components without being constrained by the viscosity and irreversibility of molded resin, thereby improving process repeatability and productivity.
Solution Approach 2:
The patent introduces dynamic, reversible coupling between components rather than permanent resin bonding. The protective circuit board and bare cell can be dynamically assembled and disassembled, allowing the manufacturing process to be repeated and defects to be corrected without the limitations imposed by viscous molding resin.
Data Source
AI summary
A side case coupled to a secondary battery in a sliding manner to cover sides of the secondary battery. The secondary battery includes: a rectangular prism battery body; a guide member arranged in a lengthwise direction of one of the pair of the sides of the battery body; a first side case that includes a horizontal portion that is coupled to the guide member to cover one of the horizontal sides of the battery body and a vertical portion that is connected to one end of the horizontal portion to cover at least a portion of an adjacent side of the battery body; and a second side case that is coupled to the battery body, and includes vertical and horizontal portions that are generally symmetric to the vertical portion and the horizontal portion of the first side case and a plurality of terminal holes formed in the horizontal portion.