Connector Interface With Band-Shaped Recesses and Protrusions

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Solution Overview

Problem

The existing connector interfaces have a large footprint and low pin density, which limits their efficiency in signal transmission and space utilization in electronic devices.

Innovation Solution

The connector interface design features band-shaped recesses and protrusions on the insulator, with corresponding slots for metal contacts, arranged in parallel and varying lengths to reduce the footprint, combined with rectangular longitudinal sections and asymmetric fillets to prevent misplugging, and uses fasteners like screws and nuts for secure coupling, along with protrusions and lugs for tight connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the connector interface uses a traditional layout with contacts arranged in a single row or simple pattern, then the manufacturing and assembly process is simple, but the footprint is large and pin density is low

Engineering Contradiction:
Improvepin densityVSAvoidfootprint
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent transitions from traditional single-row contact arrangement to a two-dimensional grid pattern with multiple rows and columns. The contacts are arranged in a matrix configuration where the insulator supports contacts at multiple positions both laterally and depth-wise, effectively utilizing spatial dimensions to increase pin density without proportionally increasing footprint area.

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

Solution Approach 2:

The connector interface is segmented into multiple independent contact units arranged in a grid pattern. Each contact is individually positioned within the insulator structure, allowing for optimized spatial distribution. The segmentation of the insulator into multiple slots and recesses enables each contact to be independently placed, maximizing the use of available space.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If the connector interface is designed with symmetric structure for ease of manufacture, then manufacturing is simplified, but misplugging cannot be prevented

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidmisplugging prevention
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces asymmetric features into the otherwise symmetric grid structure. Specifically, certain contacts are positioned at different depths relative to the insulator surface, creating an asymmetric contact arrangement. Additionally, the metal shell and insulator incorporate asymmetric guiding structures such as protrusions and recesses that only allow correct orientation during plugging, preventing misplugging while maintaining manufacturing feasibility.

Inventive Principle:
Principle #4Asymmetry

3Productivity

If the connector interface increases the number of contacts to improve signal transmission capacity, then bandwidth and data rate increase, but the footprint and device complexity increase

Engineering Contradiction:
Improvesignal transmission capacityVSAvoidfootprint
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent achieves increased signal transmission capacity by utilizing a two-dimensional contact grid rather than extending the connector linearly. By arranging contacts in multiple rows and columns with varying depths, the design packs more contacts into a compact footprint, thereby increasing bandwidth and data rate capabilities without proportionally increasing the connector's external dimensions.

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

Solution Approach 2:

The connector design employs a nested arrangement where contacts are positioned at different depth levels within the insulator structure. Some contacts are recessed while others protrude, creating a multi-level configuration that maximizes contact density within the available volume. This nesting approach allows more signal paths to be packed into a smaller footprint.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS7713085B2Connector interface
Publication Date: 2010.05.11 HUAWEI TECH CO LTD
  • US7713085B2 patent drawing
  • US7713085B2 patent drawing
  • US7713085B2 patent drawing

AI summary

The present invention provides a connector interface comprising a connector socket interface and a connector plug interface, the connector socket interface comprising metal shell, insulator, band-shaped recess provided on said insulator and metal contacts and the connector plug interface comprising metal shell, insulator, and band-shaped protrusion provided on said insulator and metal contacts, said connector socket interface and said connector plug interface being able to be coupled together, wherein: said connector socket interface has a plurality of band-shaped recesses and said connector plug interface has a plurality of band-shaped protrusions. In a connector interface with the same number of metal pieces according to an embodiment of the present invention, the footprint of the coupling part is reduced, the footprint per pair of contacts is reduced, and the objective of increasing the pin density of the contacts in a connector is achieved.