Battery Casing Groove Layout for Compact Connector Identification
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Solution Overview
Problem
Large battery sizes lead to increased dimensions of connection apparatuses, reduced portability, and inconvenient handling, while multiple identification grooves for battery type identification occupy more space and complicate the casing design.
Innovation Solution
A battery design featuring a functional groove with continuously formed functional units of varying lengths and widths, allowing for efficient size reduction while maintaining high functionality and enabling easy identification of the connection apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple identification grooves are formed for battery type identification, then identification performance is improved, but the area occupied by identification grooves increases leading to increased battery size
Solution Approach 1:
The identification groove is divided into multiple functional units with different lengths, where each unit serves a specific identification function. This segmentation allows the groove to provide multiple identification indicators without requiring multiple separate grooves, thereby improving identification performance while controlling the total area occupied.
Solution Approach 2:
A single identification groove structure performs multiple identification functions simultaneously by incorporating functional units of different lengths. This multi-functional design eliminates the need for multiple separate identification grooves, resolving the contradiction between identification performance and battery size.
2Quantity of substance
If the size of the battery is increased to accommodate larger cells, then energy capacity is improved, but the size of connection apparatus becomes large and portability is degraded
Solution Approach 1:
The invention optimizes the parameters of the identification groove, specifically making the groove depth shallower and the functional units more compact. This allows larger battery cells to be accommodated while maintaining a compact overall battery dimensions, thus preserving portability despite increased energy capacity.
Data Source
AI summary
Disclosed is a battery including a casing including cells housed therein and a terminal part including a connection terminal connected to an electrode terminal of a connection apparatus, in which in the casing, a functional groove having a predetermined function in which a longitudinal direction coincides with a connection direction of the connection terminal and the electrode terminal is formed, and the functional groove includes a plurality of functional units having different lengths which are continuously formed. Accordingly, since there is no part that divides a functional unit between a plurality of functional units having different lengths, a size of the functional groove in a direction in which the functional units are continuous is a sum of sizes of a plurality of functional units, and thus it is possible to reduce the size of the battery while securing high functionality.