Connection Module Detection Terminal Retention via Segmented Locking
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Solution Overview
Problem
Structural constraints make it difficult to position and retain detection terminals effectively in conventional connection modules for power storage modules, limiting design freedom.
Innovation Solution
A connection module with a conductive member featuring a metal plate body and projection portions, and a holding portion with locking pieces that restrict movement in orthogonal and parallel directions, allowing stable retention with reduced components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a partition wall is provided in the holding portion to position and retain the detection terminal, then the detection terminal can be securely held, but the design freedom of the holding portion is reduced and structural constraints increase
Solution Approach 1:
The holding portion is divided into multiple recesses, each with specific locking pieces positioned at strategic locations. These recesses segment the holding space to provide precise positioning and retention for the detection terminal without requiring a comprehensive partition wall structure, thus maintaining design freedom while ensuring secure retention.
Solution Approach 2:
The partition wall structure is extracted and replaced by selective locking pieces positioned only where needed within the holding portion. This extraction of the partition wall concept allows the holding portion to maintain its overall simplicity and design freedom while still providing the necessary retention functionality through localized locking features.
2Stability of the object's composition
If multiple locking components are provided to restrict movement in multiple directions, then the conductive member is held stably, but the number of components increases
Solution Approach 1:
Multiple locking functions are merged into a single integrated locking piece structure. The locking piece simultaneously provides restriction in directions orthogonal to the plate surface and parallel to the plate surface through its geometric configuration and positioning, eliminating the need for separate locking components for each direction and achieving stable holding with fewer parts.
Solution Approach 2:
The locking piece is designed to perform multiple functions: it restricts movement in directions orthogonal to the plate surface while also restricting movement in directions parallel to the plate surface. This multi-functional locking piece replaces what would traditionally require multiple separate components, reducing the total quantity of parts while maintaining comprehensive stability.
Data Source
AI summary
In a connection module attached to a single battery group from a first direction, a detection terminal connected to an electrode terminal of the single battery group includes: a body portion made of a metal plate material formed in an approximately rectangular plate shape; and a projection portion in a plate shape connected to a base edge of the body portion and having a plate surface intersecting with a plate surface of the body portion. An insulation protector of the connection module includes a holding portion holding the detection terminal in a posture in which the plate surface of the body portion is orthogonal to the first direction. The holding portion includes a locking piece. A lower surface of a claw portion provided at the lower end of the locking piece locks the plate surface of the body portion and restricts the movement of the detection terminal in the first direction.