High-Speed Connector Shield Contact Segmentation

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Solution Overview

Problem

Existing connectors for high-speed transmission on circuit boards require a wide opening to accommodate terminals, compromising the rigidity of the housing.

Innovation Solution

The design incorporates a fork-shaped soldering terminal portion with crimped solder and a locking mechanism between shield contacts and plates, reducing the housing width while maintaining rigidity through a unique arrangement of convex portions and notches, and a fork-shaped soldering terminal portion that reduces the need for a wide opening.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a single plate terminal is used to penetrate the housing opening, then the terminal can be inserted through the opening portion, but the housing width must be increased and rigidity cannot be ensured

Engineering Contradiction:
Improveterminal insertionVSAvoidhousing rigidity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The terminal is divided into two separate components: a shield contact and a shield plate. The shield contact is inserted from the upper side through the opening portion, while the shield plate is inserted from the lower side. These two components are then coupled together to form the complete terminal structure. This segmentation allows each component to be smaller and fit through a narrower opening, while the coupled structure provides the necessary rigidity and strength.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The shield contact and shield plate are nested together to form an integrated terminal structure. The shield contact fits within or alongside the shield plate, creating a compact assembly that reduces the required opening width while maintaining structural integrity through their combined form.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Strength

If the housing opening is reduced in width, then housing rigidity is improved, but the terminal cannot penetrate through the opening portion

Engineering Contradiction:
Improvehousing rigidityVSAvoidterminal insertion
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

By segmenting the terminal into shield contact and shield plate components that can be inserted from opposite sides through a narrow opening, the patent enables terminal installation through a reduced-width opening while maintaining housing rigidity.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a wide opening is provided in the housing, then the terminal can be inserted easily, but the rigidity of the housing is compromised

Engineering Contradiction:
Improveterminal insertionVSAvoidhousing width
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The terminal insertion process is segmented into two separate operations: inserting the shield contact from the upper side and inserting the shield plate from the lower side. This allows each component to be smaller, enabling the use of a narrower housing opening while maintaining ease of insertion through the divided process.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a single-direction insertion approach to a two-directional insertion method, with components entering from opposite sides (upper and lower sides) of the housing. This dimensional change in the insertion process enables the use of a narrower opening width while maintaining operational ease.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3836309B1Connector for high-speed transmission
Publication Date: 2023.07.26 YAMAICHI ELECTRONICS CO LTD
  • EP3836309B1 patent drawingFigure 1A
  • EP3836309B1 patent drawingFigure 1B~1C
  • EP3836309B1 patent drawingFigure 1D~2

AI summary

According to an embodiment of the present disclosure, a connector (CNP) for high-speed transmission is provided. The terminals interposed between the shield plate (5P) of the host connector (CNH) and the pad of the extension substrate (91) are divided into a shield contact (4P) which is a component having the contact portions (47aP, 47bP, 47cP, 47dP) and a shield plate (5P) which is component having soldering terminal portions (50aP, 50bP, 50cP, 50dP). The first end portion of the shield contact (4P) on the side opposite to the contact portions (47aP, 47bP, 47cP, 47dP) and the second end portion of the shield plate (5P) on the side opposite to the soldering terminal portions (50aP, 50bP, 50cP, 50dP) are pressed into the long hole (17P) from opposite directions, and the first and second end portions abut on each other in the long hole (17P).