Female Terminal Support Structure for Stable EV Connector Mating

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Solution Overview

Problem

Existing electrical connection systems for automotive applications face challenges such as difficulty in maintaining the female terminal in a central position, potential damage during mating, and susceptibility to movement, leading to assembly issues and increased manufacturing costs.

Innovation Solution

The proposed electrical connection system includes a female terminal with a first elongate portion oriented parallel to the mating direction, a second elongate portion oriented differently, and a bent portion with a supporting member that prevents movement of the female terminal within the outer housing, ensuring accurate positioning and secure mating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the female terminal is made flexible to allow various orientations, then adaptability is improved, but positioning stability deteriorates

Engineering Contradiction:
Improveflexibility of female terminalVSAvoidpositioning stability of female terminal
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The female terminal is divided into distinct segments: a bent portion for flexibility and orientation adjustment, a supporting member for stable positioning, and a receiving portion for electrical connection. This segmentation allows each part to fulfill its specific function independently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The supporting member extends from the bent portion in a direction perpendicular to the mating direction, adding a new dimensional element for positioning. This vertical support structure stabilizes the female terminal in the housing without restricting its electrical connection function.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If the female terminal is not fixed in the housing, then ease of assembly is improved, but reliability deteriorates

Engineering Contradiction:
Improveease of assemblyVSAvoidreliability of electrical connection
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The supporting member is designed to automatically engage with the housing structure during assembly, providing self-positioning and self-fixation functionality. The female terminal self-stabilizes within the housing through the geometric configuration of the supporting member and housing features.

Inventive Principle:
Principle #25Self-service

3Reliability

If the female terminal is constrained to prevent movement, then reliability is improved, but ease of manufacture deteriorates

Engineering Contradiction:
Improvereliability of electrical connectionVSAvoidease of assembly
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The supporting member is integrally formed with the female terminal as a single piece, combining the electrical connection function and the positioning function into one component. This eliminates the need for separate fixation elements and simplifies the assembly process while ensuring reliable positioning.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4510388A1Electrical connection system for electrical vehicles
Publication Date: 2025.02.19 APTIV TECHNOLOGIES AG
  • EP4510388A1 patent drawingFigure 1
  • EP4510388A1 patent drawingFigure 2a
  • EP4510388A1 patent drawingFigure 2b

AI summary

The present invention relates to an electrical connection system for automotive applications, the system comprising: an outer housing defining a mating direction; at least one female terminal comprising a first elongate portion oriented substantially parallel to the mating direction and being received at least partially within a hollow portion of the housing, a second elongate portion oriented in a different direction than the mating direction, and a bent portion arranged between the first and the second elongate portion; wherein the first elongate portion has a receiving portion opposite to the bent portion for mating with a corresponding male terminal; wherein the bent portion has at least one supporting member for supporting the female terminal on a surface of the outer housing such that movement of the female terminal in the housing is substantially prevented.