Connector Shield Assembly for Cable-End Noise Containment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connectors fail to effectively reduce noise in cables, particularly in portions not covered by the cable shield, leading to unwanted electrical interference.
Innovation Solution
A connector assembly with a shielding structure that includes a base shield and a cover shield, which enclose the end of the cable to block noise, comprising a shield body, shield arms, and a cover plate system that contacts the cable shield to prevent noise leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional connector structure is used, then the device complexity is low, but noise interference in cable portions not covered by the cable shield increases
Solution Approach 1:
The shielding structure is divided into multiple segments: a cable shield covering the cable, a cover shield covering the connector housing, and a base shield covering the PCB area. Each segment independently shields specific regions, collectively providing comprehensive noise protection without requiring a single complex shielding structure.
Solution Approach 2:
The shielding approach extends from one dimension to three dimensions by adding the base shield on the PCB plane and the cover shield on the housing plane, creating a multi-planar shielding system that blocks noise from multiple directions and ensures comprehensive coverage of previously exposed areas.
2Object-affected harmful factors
If the cable shield coverage is extended, then noise shielding improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
Instead of extending a single cable shield, the shielding function is segmented into the cable shield, cover shield, and base shield. Each component is manufactured separately with standard processes and then assembled together, maintaining ease of manufacture while achieving extended shield coverage.
Solution Approach 2:
The base shield serves multiple functions: it provides shielding for the PCB area, acts as a mounting structure for the connector, and connects the cover shield to the cable shield. This multi-functionality reduces the need for additional components, simplifying manufacturing.
3Object-affected harmful factors
If comprehensive shielding is implemented, then noise reduction effectiveness increases, but the device complexity increases
Solution Approach 1:
The comprehensive shielding is achieved through segmentation into three functional parts (cable shield, cover shield, base shield), where each part addresses specific noise paths. This segmented approach provides comprehensive coverage while keeping individual components simple and manageable.
Solution Approach 2:
The cover shield and base shield are connected to form an integrated shielding structure that bridges the gap between the cable shield and PCB. This merging creates a continuous shielding path without requiring separate complex systems, achieving comprehensive noise reduction through coordinated simple components.
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 proposed connector assembly significantly reduces noise interference by ensuring comprehensive shielding of the cable ends, enhancing electrical connectivity and reducing electromagnetic noise.
Implementation Method 1
a cable shield enclosing or surrounding the insulator and supported by the plurality of shield terminals
Implementation Method 2
a cover shield connected to the housing and covering at least a portion of an end of the cable, and a base shield disposed on the PCB, connected to the cover shield, and covering at least a portion of the end of the cable
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A connector including a main body (220) disposed on a printed circuit board (PCB) (290), a housing (230) coupled to the main body (220), configured to cover a cable, and spaced apart from the PCB (290), a cover shield (250) connected to the housing (230) and configured to cover at least a portion of an end of the cable (240), and a base shield (260) disposed on the PCB (290), connected to the cover shield (250), and configured to cover at least a portion of the end of the cable (240).