Miniaturized Shielded Connector With Integrated Shell

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Solution Overview

Problem

Conventional shielded connectors require multiple housings and shells, making it difficult to miniaturize them.

Innovation Solution

A connector design that integrates an insulating outer shell and inner shell, with upper and lower ground terminals held by the housing, allowing for easier miniaturization by eliminating the need for separate structures and direct grounding components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a double-structure housing and double-structure shell are provided to enhance noise resistance, then noise shielding performance is improved, but the connector size increases and miniaturization becomes difficult

Engineering Contradiction:
Improvenoise resistanceVSAvoidconnector size
Core Design Contradiction:
Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The patent merges the inner shell and outer shell into a single integrated shell structure. The shell includes an inner shell portion and an outer shell portion that are formed as one piece, eliminating the need for separate inner and outer shells while maintaining the noise shielding functionality. This integration reduces the overall connector size and simplifies the structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a nested configuration where the inner shell portion is positioned inside the outer shell portion within the single integrated shell. This nesting arrangement allows the shell to provide multiple layers of noise shielding while maintaining a compact form factor, as the shielding layers are concentric rather than additive in terms of external dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If separate structures and holding components are provided for the housings and shells, then structural stability is improved, but the number of parts increases and miniaturization becomes difficult

Engineering Contradiction:
Improvestructural stabilityVSAvoidnumber of parts
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent combines multiple structural functions into fewer components. The single integrated shell performs both the function of inner shell and outer shell, eliminating the need for separate holding structures between them. The housing directly holds the terminals and the integrated shell, reducing the number of intermediate components required.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated shell serves multiple functions simultaneously: it provides noise shielding, structural support, and positioning for the terminals. The shell's inner and outer portions both contribute to these functions, making the single component multi-functional and reducing overall part count while maintaining stability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 integrated shell design enables the connector to be miniaturized while maintaining noise shielding and ground potential equalization, similar to double-structure shell configurations.

Implementation Method 1

a shell (7) having conductivity and covering the housing (5)

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Implementation Method 2

an upper ground terminal (9) and a lower ground terminal (11) which are held by the housing (5) so as to face each other via the signal terminals (3A, 3B) with a space left therebetween, wherein the upper ground terminal (9) has a contact portion (13) being in contact with a contact inner surface (45) of the shell (7)

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP3086416B1connector
Publication Date: 2019.07.24 JAPAN AVIATION ELECTRONICS IND LTD
  • EP3086416B1 patent drawingFigure 1
  • EP3086416B1 patent drawingFigure 2
  • EP3086416B1 patent drawingFigure 3

AI summary

Provided is a connector whose miniaturization is easier than before. A connector (1) includes a signal terminal (3A, 3B) as at least one first terminal having conductivity, a housing (5) having insulating property and holding the signal terminal (3A, 3B), a shell (7) having conductivity and covering the housing (5), and an upper ground terminal (9) as a second terminal having conductivity and a lower ground terminal (11) as a third terminal having conductivity which are held by the housing (5) so as to face each other via the signal terminal (3A, 3B) with a space left therebetween. Further, the upper ground terminal (9) has a contact portion (13) being in contact with a contact inner surface (45) of the shell (7).