Battery Cell Module Assembly Jig for Precise Frame Alignment
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Solution Overview
Problem
The existing methods for assembling secondary battery cell modules are prone to defects due to assembly tolerance issues, requiring additional processes like adhesive fixation, which increase time and cost.
Innovation Solution
A method using an assembling jig with guide rods on a jig plate to accurately position and fasten lower and upper frames around battery cells without adhesive fixation, ensuring precise alignment and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive fixation is used to compensate for assembly tolerance, then assembly reliability is improved, but assembly time and cost increase
Solution Approach 1:
The patent applies preliminary action by pre-forming recesses in the battery cell casings that correspond to protrusions on the frame members. This preliminary geometric preparation enables direct mechanical interlocking without requiring adhesive fixation, thereby eliminating additional assembly steps and reducing assembly time while maintaining assembly reliability through precise tolerance compensation built into the design
Solution Approach 2:
The patent introduces geometric intermediaries (protrusions and recesses) that mediate between the battery cells and frames. These complementary geometric features act as intermediaries that compensate for assembly tolerances through precise mechanical fit, eliminating the need for adhesive while ensuring reliable assembly
2Reliability
If adhesive fixation is used to compensate for assembly tolerance, then assembly reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies the taking out principle by removing the adhesive fixation step from the assembly process. Instead of adding adhesive to compensate for tolerance issues, the design extracts the tolerance compensation function into the geometric design of the frame members and battery cell casings themselves, through protrusions and recesses that provide direct mechanical interlocking
Solution Approach 2:
The patent applies self-service by designing the battery cell casings and frames with self-aligning geometric features (recesses and protrusions) that automatically compensate for assembly tolerances during assembly. The structure serves itself to ensure proper alignment and secure connection without requiring additional adhesives or complex fixation processes
3Device complexity
If multiple cells are assembled simultaneously without fixation, then assembly process is simplified, but assembly precision deteriorates
Solution Approach 1:
The patent applies local quality by providing localized geometric interlocking features (protrusions and recesses) at specific contact points between frame members and battery cell casings. This localized precision geometry ensures accurate positioning and alignment for each cell during simultaneous assembly, maintaining manufacturing precision while allowing the overall assembly process to remain simple and free of additional fixation steps
Data Source
AI summary
A method for assembling a secondary battery cell module by using an assembling jig including a plurality of guide rods disposed on a jig plate includes: mounting a lower frame on the jig plate while the guide rods are inserted into a plurality of arranging through-holes of the lower frame; disposing a plurality of battery cells on the lower frame; mounting an upper frame on the battery cells while the guide rods are inserted into a plurality of arranging through-holes of the upper frame; fastening the upper frame and the lower frame together; and separating the assembling jig from the upper frame and the lower frame.