Battery Contact Inspection Mechanism for Thickness Variation
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Solution Overview
Problem
Existing charge/discharge inspection devices struggle to reliably connect charge/discharge contactors with secondary batteries arranged in the thickness direction due to variations in thickness, leading to increased device and tray sizes when accommodating deviations.
Innovation Solution
A charge/discharge inspection device with a first movable mechanism that moves multiple charge/discharge units together and a second movable mechanism that individually adjusts to each battery's thickness, using first and second following teeth for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple secondary batteries are arranged in the thickness direction to be charged/discharged simultaneously, then productivity is improved, but manufacturing precision deteriorates due to accumulated thickness deviations
Solution Approach 1:
The charge/discharge device employs a movable mechanism that can dynamically adjust the position of charge/discharge contactors in the thickness direction. This allows the contactors to follow the actual positions of battery terminals despite thickness variations, enabling reliable electrical contact while maintaining the ability to process multiple batteries simultaneously. The dynamic adjustment capability resolves the contradiction by adapting to manufacturing precision variations without sacrificing productivity.
2Reliability
If the device structure is enlarged to accommodate thickness deviations, then reliability is improved, but device complexity increases
Solution Approach 1:
Instead of enlarging the device structure to accommodate thickness deviations, the invention uses a movable mechanism that dynamically adjusts the contactor positions. This dynamic approach maintains contact reliability while avoiding the need for a larger, more complex device structure. The mechanism moves components as needed rather than providing fixed accommodation for all possible variations.
Solution Approach 2:
The invention changes the positional parameters of the charge/discharge contactors dynamically based on actual battery positions. Rather than fixing the structure to accommodate maximum possible deviations, the system adjusts positions in real-time, maintaining reliability without increasing structural complexity or size.
Data Source
AI summary
Provided is a charge/discharge inspection device that brings charge/discharge contactors into contact with positive electrode terminals and negative electrode terminals of a plurality of secondary batteries arranged in a thickness direction and performs charging and discharging. The charge/discharge inspection device includes: a first movable mechanism that moves together a plurality of charge/discharge units having the charge/discharge contactors in a direction in which the plurality of secondary batteries are arranged; and a second movable mechanism that is provided independently of the first movable mechanism and individually moves the plurality of charge/discharge units in the direction in which the plurality of secondary batteries are arranged.