Electrical connection assembly and electrical apparatus

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Solution Overview

Problem

In household appliances like refrigerators, electrical connections for moving parts such as LED lamps on shelves are costly and prone to damage during installation, leading to potential connection failures.

Innovation Solution

An electrical connection assembly featuring a connector mounted on a circuit board with an elastic arm and connection pin that contacts an electrical contact pad on a moving bracket, eliminating the need for a separate connector on the moving part, thus reducing costs and minimizing damage risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a connector is provided on the moving shelf to mate with the connector on the circuit board, then electrical connection is achieved, but the cost increases and the connector may be damaged during insertion

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidconnector structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the connector from the moving shelf and relocates it to the stationary circuit board. Only the elastic arm (contact element) remains on the moving shelf, while the main connector body is mounted on the circuit board. This extraction reduces the complexity and damage risk on the moving shelf while maintaining electrical connection reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent inverts the traditional connector arrangement by placing the connector on the stationary circuit board rather than on the moving shelf. The elastic arm on the moving shelf acts as the male contact, while the connector on the circuit board provides the female receptacle, reversing the conventional approach and improving reliability.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If a connector is provided on the moving shelf, then electrical connection is achieved, but the cost increases

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

Solution Approach 1:

The patent extracts the expensive connector component from the moving shelf and places it on the stationary circuit board. Only the simple elastic arm remains on the moving shelf, significantly reducing the manufacturing cost of the moving shelf assembly while maintaining electrical connection functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the expensive connector on the moving shelf with a simple, inexpensive elastic arm that can be easily manufactured and replaced if needed. The main connector investment is made in the stationary circuit board where it provides long-term service.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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

This solution provides a cost-effective and reliable electrical connection for moving parts without the need for a connector on the moving bracket, enhancing durability and ease of use by eliminating the risk of connector damage during installation.

Implementation Method 1

The elastic arm extends out from a surface of the housing and electrically contacts an electrical contact pad on a moving bracket

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11271338B2Electrical connection assembly and electrical apparatus
Publication Date: 2022.03.08 TYCO ELECTRONICS (SHANGHAI) CO LTD
  • US11271338B2 patent drawing
  • US11271338B2 patent drawing
  • US11271338B2 patent drawing

AI summary

An electrical connection assembly includes a circuit board and a connector mounted on the circuit board. The connector has a housing and a contact received in the housing. The contact has an elastic arm extending out from a surface of the housing and a connection pin extending out from a side face of the housing. The elastic arm electrically contacts an electrical contact pad on a moving bracket and the connection pin electrically contacts the circuit board.