Battery Casing Guided Groove Layout for Compact Terminal Connection
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Solution Overview
Problem
Large battery sizes lead to increased dimensions of connection apparatuses like chargers and electronic devices, compromising portability and handling convenience.
Innovation Solution
The battery design features a casing with a notch formed by a level difference face and a groove forming face, where the guided groove is positioned on the bottom face side, allowing for a non-continuous positioning of these elements, which reduces the overall size by bringing the groove forming face closer to the cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the battery size is decreased, then portability and handling convenience are improved, but the connection apparatus size may be compromised
Solution Approach 1:
The guided groove is repositioned to the bottom face side of the casing rather than the side face, utilizing the vertical dimension more effectively. This spatial reconfiguration allows the groove forming face to be positioned closer to the cell while maintaining proper guidance function, thereby reducing overall battery dimensions without compromising connection reliability
Solution Approach 2:
The notch structure is designed with differentiated zones: the level difference face provides structural support and positioning, while the groove forming face creates the guided groove for connection apparatus engagement. This localized functional differentiation allows compact positioning of the groove forming face near the cell, reducing battery size while maintaining ease of connection operation
2Volume of moving object
If the groove forming face is positioned closer to the cell, then battery size is reduced, but the guided groove positioning becomes more constrained
Solution Approach 1:
The notch is segmented into two distinct functional surfaces: the level difference face that provides structural positioning and the groove forming face that creates the guided groove. This segmentation allows the groove forming face to be positioned close to the cell for size reduction while the level difference face maintains proper guidance geometry, resolving the positioning constraint
Solution Approach 2:
By moving the guided groove to the bottom face side and creating the notch with surfaces extending in different directions (level difference face from side face, groove forming face from bottom face), the design utilizes three-dimensional space more efficiently, allowing compact positioning without compromising guidance functionality
Data Source
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AI summary
A battery includes: a casing that houses a cell inside; and a terminal part that has connection terminals connected to electrode terminals of a connection apparatus, in which the casing includes a top face and a bottom face positioned on opposite sides in a height direction and two side faces positioned between the top face and the bottom face on opposite sides in a widthwise direction, a notch is formed by a level difference face that is continuous from the side face and a groove forming face that is continuous from the bottom face, and a guided groove that is open to the groove forming face is formed in the casing, and the guided groove is positioned on a further bottom face side than the level difference face.