Flexible Strip Electrical Connector Tolerance Compensation

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Solution Overview

Problem

Existing electrical connectors for battery modules or cells have limited ability to compensate for component spacing tolerances, leading to inefficiencies in connecting high electrical currents, particularly in electric motor vehicles.

Innovation Solution

A single-piece electrical connector design featuring a flexible, flat conductive strip with secured contact brackets that allow for adjustable spacing and clamping mechanisms, enabling robust and adaptable connections between components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a rigid electrical connector structure is used, then structural stability is improved, but the ability to compensate for spacing tolerances deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidtolerance compensation capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by making the strip flexible rather than rigid, allowing it to dynamically adapt to spacing variations between contact brackets while maintaining structural integrity. The flexible strip can bend and deform to accommodate tolerance ranges, resolving the contradiction between stability and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the physical parameter of the strip from rigid to flexible, enabling it to accommodate spacing variations. This parameter change allows the connector to adapt to different spacing conditions while maintaining electrical connectivity, thus resolving the contradiction between structural stability and tolerance compensation.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple separate components are used in the electrical connector, then adaptability is improved, but the risk of component loss and assembly complexity increases

Engineering Contradiction:
Improvespacing adjustment capabilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the strip and contact brackets into a single integrated component, eliminating the need for separate parts. This merging maintains the adaptability of the flexible strip while reducing assembly complexity and eliminating the risk of component loss during assembly.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the integrated connector into functional regions (contact brackets, strip, clamping regions) that can be manufactured separately but function as a unified component, balancing manufacturing ease with assembly simplicity.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the contact bracket is designed with a clamping mechanism, then the reliability of electrical connection is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The clamping mechanism is designed to automatically engage and secure contact blades without additional fastening steps. The contact brackets self-secure the blades through their inherent elastic deformation, improving reliability while maintaining manufacturing simplicity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces complex mechanical fastening systems with a simple elastic clamping mechanism that uses the natural elasticity of the contact bracket material to secure contact blades, reducing manufacturing complexity while ensuring reliable electrical connections.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides a cost-effective, compact, and reliable method for connecting components with large tolerance compensation, ensuring secure and efficient electrical conductivity while simplifying assembly and reducing component loss risks.

Implementation Method 1

the first and/or the second contact bracket has/have a plurality of inner resilient bars and a plurality of outer resilient bars which are arranged on a common strut. In this instance, the clamping region is formed between the inner resilient bars and the outer resilient bars

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9379459B2Electrical connector
Publication Date: 2016.06.28 TE CONNECTIVITY GERMANY GMBH
  • US9379459B2 patent drawing
  • US9379459B2 patent drawing
  • US9379459B2 patent drawing

AI summary

An electrical connector comprises a first single-piece contact bracket, a second single-piece contact bracket and a flat, flexible, electrically conductive strip. The first contact bracket and the second contact bracket are secured to the strip with spacing.