Visual detection method and device for increasing success rate of cylindrical battery cell entering shell

• Main Authors: CONG CHANGBO, CHEN ZHICHAO, LIU CHAO
• Format: Patent
• Language: Chinese; English
• Published: 03.06.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

The invention provides a visual detection method and device for increasing the success rate of entering a cylindrical battery cell into a shell, and the method comprises the steps: capturing the minimum inner diameter of a to-be-assembled shell in a rotating state through a visual detection mechanism, the minimum inner diameter being the diameter of a circle formed by the rotation of the most protruding part of the inner wall of the to-be-assembled shell; capturing the maximum outer diameter of the to-be-assembled battery cell in the rotating state through a visual detection mechanism, wherein the maximum outer diameter is the diameter of a circle formed by rotation of the most protruding part of the outer wall of the to-be-assembled battery cell; and comparing the maximum outer diameter of the to-be-assembled battery cell with the minimum inner diameter of the to-be-assembled shell, and if the maximum outer diameter of the to-be-assembled battery cell is greater than or equal to the minimum inner diameter of