Electrical Connector Metallic Cover Cantilever Arms Extraction
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Solution Overview
Problem
Existing electrical connector assemblies are difficult to assemble and replace on a printed circuit board (PCB) due to their design, which hinders efficient installation and maintenance.
Innovation Solution
The electrical connector assembly features a metallic cover with cantilever arms that fit into corresponding slots in a securing box, allowing for easy assembly and removal using a tool, along with a sealing ring and waterproof ring for secure and detachable attachment to the PCB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical connector uses a fixed design without extraction features, then the connection stability is improved, but the ease of replacement deteriorates
Solution Approach 1:
The metallic cover is segmented into a main body and extractable cantilever arms that can be independently manipulated. The arms are separated from the main connector body, allowing the connector to remain stable during operation while enabling easy extraction when needed through the extraction slot.
Solution Approach 2:
The cantilever arms act as intermediary elements between the connector and the extraction tool. These arms provide a mechanical interface that allows external tools to engage with and remove the connector without affecting the stable connection during normal operation.
2Reliability
If the electrical connector requires soldering for assembly, then the connection reliability is improved, but the productivity deteriorates
Solution Approach 1:
The traditional soldering mechanical process is replaced with a pure mechanical insertion and extraction system. The connector uses mechanical engagement features (cantilever arms fitting into slots) instead of thermal soldering, eliminating the need for soldering equipment and processes while maintaining reliable connections.
3Ease of operation
If the electrical connector design is simplified for easy assembly, then the ease of operation is improved, but the securing reliability deteriorates
Solution Approach 1:
The cantilever arms are designed with asymmetric geometry that provides easy insertion in one direction while ensuring secure retention in the assembled position. The arms fit into corresponding slots with specific orientation, allowing simple insertion but preventing accidental disengagement through the asymmetric engagement mechanism.
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 design enables easy assembly and replacement of the electrical connector on a PCB without soldering, ensuring a secure and reliable connection while allowing for tool-assisted extraction, enhancing usability and maintainability.
Implementation Method 1
The metallic cover includes a pair of cantilever arm extending forwardly and outwardly from two sides thereof
Data Source
AI summary
An electrical connector assembly (100) includes a securing box (3) and a electrical connector (2). The securing box (3) includes a box portion (31) for receiving the electrical connector (2). The electrical connector (2) includes an insulative housing (20), a number of terminals (21) retained in the insulative housing (20) and a metallic cover (22) covering the insulative housing (20). The metallic cover (22) includes a pair of cantilever arm (225) extending forwardly and outwardly from two sides thereof. The box portion (31) includes corresponding an extraction slot (317) and a locating slot (314) for receiving the cantilever arm (225), the extraction slot is used to remove the electrical connector by a tool inserted thereof and therefore, the electrical connector (100) can be easily assembled or replaced from an electronic equipment.