Spring-Loaded Electrical Connector for Tolerance-Stable Contact

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Solution Overview

Problem

Current electrical connection methods for vehicles, such as agricultural and large transport vehicles, are costly due to the need for specific tools and are sensitive to manufacturing tolerances, leading to unreliable connections.

Innovation Solution

An improved electrical connection device featuring a base with a spring and shaft that applies compressive force for contact with an external support, utilizing conical geometries and annular clamping pieces to securely connect and transmit electric potential without requiring specialized tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a central pivot with rubbing terminal is used for electrical connection, then the connection can be established, but the solution becomes costly due to specific tools required and manufacturing tolerances affect reliability

Engineering Contradiction:
Improveconnection reliabilityVSAvoidtooling complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring mechanism automatically applies compressive force to maintain reliable electrical contact between the terminal and the support's external ring, eliminating the need for external tools or complex adjustment mechanisms. The system self-regulates the contact pressure to ensure consistent connection reliability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention extracts the complex tooling and multi-terminal system from the conventional solution, reducing it to a single integrated terminal with spring mechanism that achieves reliable connection without requiring specialized tools or complex assembly procedures.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of manufacture

If a rubbing terminal is used to contact the external ring, then electrical connection is possible, but manufacturing tolerances cause improper contact and unreliable connections

Engineering Contradiction:
Improveassembly simplicityVSAvoidcontact precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The spring mechanism dynamically adjusts the contact pressure parameter, compensating for variations in manufacturing tolerances. By applying continuous compressive force, the system ensures proper electrical contact even when dimensional variations exist in the supporting element or terminal components.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system transitions from a static rigid connection to a dynamic spring-based connection that can adapt to manufacturing tolerances. The spring's elasticity allows the terminal to maintain optimal contact pressure despite variations in component dimensions, ensuring reliable electrical connection.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple terminals and specific tools are used for connection, then electrical connection can be established, but the manufacturing cost increases significantly

Engineering Contradiction:
Improveconnection reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention merges the functions of multiple terminals and tooling requirements into a single integrated terminal assembly with an internal spring mechanism. This consolidation maintains reliable electrical connection while eliminating the need for specialized tools and reducing the number of components that increase manufacturing cost.

Inventive Principle:
Principle #5Merging (Combining)

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 enables a reliable, simple, and effective electrical connection to existing power supplies, reducing manufacturing costs and dependency on precise tolerances, allowing for easy assembly and efficient power supply to devices like lighting systems.

Implementation Method 1

a base (1) that incorporates a spring (19) and a shaft (11) enabled for receiving and transmitting the electric potential difference

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a shaft (11) enabled for receiving and transmitting the electric potential difference from the external support

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS11888274B2Electrical connection device
Publication Date: 2024.01.30 ATRESSA GLOBAL CORP SL
  • US11888274B2 patent drawing
  • US11888274B2 patent drawing
  • US11888274B2 patent drawing

AI summary

An electrical connection device is enabled to be linked materially and electrically to an external support that has an electric potential difference, and at the same time enabled to be linked materially and electrically to an external electrically operated device, and therefore for transmitting electric potential between the external support and the external device, which includes a base that incorporates a spring and a shaft enabled for receiving and transmitting the electric potential difference from the external support and is arranged and enabled on the same base in order to make electrical contact with the support of a compressive force on the spring.