Cylindrical Battery Holder Assembly to Prevent Cell Rotation
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Solution Overview
Problem
Existing cell modules face challenges in preventing positional shifts and rotation of cylindrical batteries while allowing smooth insertion, as strong frictional resistance is required to inhibit rotation, making it difficult to insert batteries efficiently.
Innovation Solution
A cell module design featuring a holder with deformed stopper portions and push rods that thrust against the batteries, providing increased frictional resistance without the need for strong initial contact, ensuring batteries are fixed in place and cannot rotate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stopper portions are strongly thrust against the surfaces of cylindrical batteries to inhibit rotation, then the reliability of preventing battery rotation is improved, but the ease of operation during battery insertion deteriorates due to increased frictional resistance
Solution Approach 1:
The stopper portions are pre-deformed toward the battery surfaces during holder assembly, but the actual thrusting action is delayed until after battery insertion. The push rods subsequently push the stopper portions against the batteries to secure them in position. This preliminary preparation allows smooth insertion followed by reliable fixation.
Solution Approach 2:
The holder is divided into two functional components: the holder body with deformed stopper portions and the sub-holder with push rods. This segmentation separates the insertion function (holder body) from the fixation function (sub-holder with push rods), allowing batteries to be inserted smoothly first, then secured against rotation in a second step.
2Stability of the object's composition
If frictional resistance between stopper portions and batteries is increased to prevent positional shifts, then the stability of battery positioning is improved, but the productivity of assembly process deteriorates
Solution Approach 1:
The stopper portions are pre-deformed toward the battery surfaces during holder assembly, but the actual thrusting action is delayed until after battery insertion. The push rods subsequently push the stopper portions against the batteries to secure them in position. This preliminary preparation allows smooth insertion followed by reliable fixation.
Solution Approach 2:
The holder is divided into two functional components: the holder body with deformed stopper portions and the sub-holder with push rods. This segmentation separates the insertion function (holder body) from the fixation function (sub-holder with push rods), allowing batteries to be inserted smoothly first, then secured against rotation in a second step.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design allows for efficient battery insertion and assembly while effectively inhibiting positional shifts and rotation, ensuring batteries remain fixed and secure within the holder.
Implementation Method 1
Holder body 3, 23 has stopper portions 5, 25 deformed toward surfaces of cylindrical batteries 1 arranged in holding spaces 13, 33
Implementation Method 2
push rods 6, 26 thrust stopper portions 5, 25 against cylindrical batteries 1, and press the surfaces of cylindrical batteries 1 arranged in holding spaces 13, 33
Data Source
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AI summary
A cell module includes a plurality of cylindrical batteries (1) and a holder composed by arranging each of cylindrical batteries (1) in a parallel posture. The holder includes: a holder body having holding spaces (13) for arranging cylindrical batteries (1) at fixed positions; and a sub holder stacked on the holder body. The holder body has stopper portions (5) deformed toward surfaces of cylindrical batteries (1) arranged in holding spaces (13). The sub holder has push rods that push out stopper portions (5) to cylindrical batteries (1) in a state of being coupled to the holder body. In a state in which the sub holder is coupled to the holder body, in the cell module, the push rods thrust stopper portions (5) against cylindrical batteries (1), and press the surfaces of cylindrical batteries (1) arranged in holding spaces (13).