One-Piece Receptacle Connector Shell for EMI Shielding
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Solution Overview
Problem
The increasing proximity of electronic components in devices leads to electromagnetic interference (EMI) and radio frequency interference (RFI) issues, particularly in high-speed signal transmission, which affects wireless communication and is exacerbated by the manufacturing defects in existing electrical connectors.
Innovation Solution
The electrical receptacle connector features a metallic shell with an integrated insulated housing and a one-piece outer shell formed by bending and processing a plate member, which reduces manufacturing steps, improves structural strength, and minimizes gaps or cracks, thereby enhancing shielding against EMI and RFI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the metallic shell is covered on the rear portion of the terminal base with separate components, then the shielding against EMI and RFI is improved, but the manufacturing complexity increases and defective products are caused due to improper engagements
Solution Approach 1:
The patent combines the rear covering plate and side plates into a single integrated component that forms a one-piece outer shell. This merging eliminates the need for separate assembly steps and engagements between multiple components, thereby reducing manufacturing complexity while maintaining the shielding function against EMI and RFI.
Solution Approach 2:
The outer shell is formed by bending and shaping a single plate member into integrated sections (rear covering plate and side plates) that provide shielding. This segmentation within a unified structure allows the shielding function to be maintained while avoiding the complexity of assembling multiple separate components.
2Object-affected harmful factors
If multiple separate components are used to form the outer shell, then the shielding coverage is improved, but the structural strength decreases due to gaps and cracks between components
Solution Approach 1:
The patent merges the rear covering plate and side plates into a single continuous structure formed from one plate member. This eliminates gaps and cracks between separate components, thereby maintaining structural integrity and strength while providing comprehensive shielding coverage against EMI and RFI.
Solution Approach 2:
The outer shell is formed as a composite structure where a single plate member is shaped to provide both structural strength and electromagnetic shielding functionality. The integrated design ensures continuous material coverage without discontinuities that would compromise structural strength.
3Object-affected harmful factors
If multiple assembly steps are used to cover the metallic shell, then the shielding effectiveness is improved, but the production time increases and productivity decreases
Solution Approach 1:
The outer shell is pre-formed as a single integrated component with all necessary shielding sections (rear covering plate and side plates) already connected. This preliminary formation eliminates the need for subsequent assembly steps, thereby maintaining shielding effectiveness while significantly improving production efficiency and reducing manufacturing time.
Solution Approach 2:
The patent combines multiple shielding components into a single pre-formed outer shell structure. This merging allows the entire shielding assembly to be installed in one step rather than requiring multiple separate assembly operations, thereby maintaining shielding effectiveness while improving productivity.
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 effectively reduces EMI and RFI issues by providing improved shielding and structural integrity, enhancing high-frequency signal transmission and reducing the production of defective products.
Implementation Method 1
an outer shell enclosing the metallic shell of the electrical connector... to prevent from signal interferences... effectively reduces EMI and RFI issues by providing improved shielding
Data Source
AI summary
An electrical receptacle connector is enclosed by an outer shell. The outer shell includes a rear covering plate, side plates, and top plates. Two turned portions are at two sides of the rear covering plate. The side plates outwardly extend from the turned portions, respectively. Each of the top plates is bent from a top portion of the corresponding side plate and extends away from the corresponding side plate. The rear covering plate and the side plates are integrally formed as a one-piece member. Hence, the steps of manufacturing process for the connector can be reduced, the production of defective products can be reduced, and the structural strength of the connector can be improved. Moreover, numbers of holes or cracks between the rear covering plate and each of the side plates can be reduced, thereby reducing the EMI issue.