Battery Connector Assembly With Inclined Insertion Guide

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Solution Overview

Problem

Existing connector assemblies for secondary batteries are prone to damage and detachment due to repeated demounting and mounting, affecting the stability and effectiveness of power and signal transmission.

Innovation Solution

A connector assembly design featuring a first connector with a protruding connection portion and a second connector with a recessed connection portion, incorporating an inclined edge to guide smooth insertion and prevent collision, along with asymmetrical mount portions to prevent misassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If connectors are repeatedly demounted and mounted, then assembly disassembly operations increase, but connector damage and internal component detachment occur

Engineering Contradiction:

Improveassembly disassembly operationVSAvoidconnector damage resistance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The connector is divided into a body portion and a separate connection portion that can move independently. The connection portion can protrude for insertion and retract for protection, allowing repeated assembly/disassembly operations without damaging the entire connector structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connection portion is designed to be movable rather than fixed, capable of protruding outward for connection and retracting inward for protection. This dynamic structure enables repeated operations while maintaining reliability by protecting internal components during non-operational states.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If connection portions are made rigid for stable connection, then connection stability improves, but collision damage during insertion increases

Engineering Contradiction:

Improveconnection stabilityVSAvoidcollision damage

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

An inclined portion is provided on the connection portion to cushion the impact during insertion. The inclined surface gradually guides the connection portions together, reducing sudden collision forces while maintaining stable connection once joined.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The connection portion features a curved inclined surface rather than a flat or sharp edge. This curved geometry allows smooth gradual contact during insertion, distributing impact forces and preventing collision damage while achieving stable connection.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Ease of operation

If connector structure is simplified for ease of assembly, then assembly convenience improves, but misassembly risk increases

Engineering Contradiction:

Improveassembly convenienceVSAvoidalignment precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The connection portion has an asymmetric inclined surface that only matches with a corresponding asymmetric recess in the mating connector. This asymmetric design prevents misassembly by ensuring connectors can only be joined in the correct orientation, while still maintaining ease of assembly through the guided inclined surface.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentEP4654356A1Connector assembly

Publication Date: 2025.11.26 LG ENERGY SOLUTION LTD

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AI summary

A connector assembly according to an embodiment of the present disclosure includes a first connector including a first body portion, and a first connection portion that protrudes toward a direction from the first body portion, and a second connector including a second body portion, and a second connection portion recessed in the insertion direction of the first connection portion from the second body portion to accommodate the first connection portion, wherein an inclined portion is formed at an edge of the second connection portion and inclined to allow the first connection portion to slide.