Board Connector Ground Spring Retrofit for Stable Shielding
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Solution Overview
Problem
Conventional board connectors do not allow for the retrofitting of a ground spring, which is necessary for connecting the outer conductor and enclosure, limiting their electrical connection and shielding performance.
Innovation Solution
A board connector design that includes a housing with a rear wall, an outer conductor with a flange, and a ground spring with a mounting piece that can be inserted between the rear wall and the flange, enabling the retrofitting of the ground spring and providing a stable electrical connection to the enclosure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional board connector structure is used, then the connector can be assembled with the circuit board and enclosure, but the ground spring cannot be retrofitted, limiting electrical connection capability
Solution Approach 1:
The connector is divided into separate components: the housing with outer conductor, the dielectric with inner conductor, and the ground spring as an independent retrofitable element. This segmentation allows the ground spring to be added separately without redesigning the entire connector assembly.
Solution Approach 2:
The housing and outer conductor are prepared in advance with a dedicated space and mounting structure (flange with recess) that anticipates future ground spring installation. This preliminary preparation enables easy retrofitting of the ground spring without modifying the original connector design.
2Object-affected harmful factors
If the ground spring is added to improve shielding performance, then electrical connection and shielding are enhanced, but the device structure becomes more complex
Solution Approach 1:
The ground spring function is extracted as a separate, optional component that can be added independently. This extraction allows the shielding function to be enhanced without complicating the basic connector structure, as the ground spring is a standalone element that interfaces with existing components.
Solution Approach 2:
The ground spring acts as an intermediary element between the outer conductor and the enclosure. It provides the grounding connection and shielding function without requiring direct integration into the core connector structure, thus maintaining simplicity while enhancing performance.
3Reliability
If the mounting piece is inserted between the rear wall and flange, then the ground spring can be securely connected, but the assembly requires additional steps
Solution Approach 1:
The mounting piece is designed to be inserted and secured through a self-contained process using the existing flange structure with recess. The ground spring's own mounting piece interacts with the pre-formed recess to create a secure connection without requiring external fasteners or complex assembly tools.
Data Source
AI summary
A board connector 10 of the present disclosure is to be mounted on a circuit board 50 and provided with a housing 11 including a receptacle 15 open forward and a rear wall 30 provided on a side opposite to a front end part where the receptacle 15 is open, an outer conductor 20 fixed to the housing 11 through the rear wall 30, an insulating dielectric 19 disposed inside the outer conductor 20, an inner conductor 18 disposed inside the dielectric 19, and a ground spring 40 to be connected to the outer conductor 20. The outer conductor 20 includes a flange 23 to be disposed along the rear wall 30 of the housing 11. The ground spring 40 includes a mounting piece 46 to be inserted between the rear wall 30 and the flange 23.