Connector With Sloping Contact Surfaces For Sheet Target Insertion

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Solution Overview

Problem

Conventional connectors face difficulties in smoothly inserting sheet-shaped connection targets due to design limitations, such as collisions with housing bottoms or upright contact ends, and challenges in forming guiding slopes with resin materials, leading to obstructed insertion paths.

Innovation Solution

A connector design featuring contacts with sloping surfaces inclined at a predetermined angle, integrated with solder fillets and a housing slope, allowing easy and guided insertion of sheet-shaped connection targets along the top surface of a mounting board, eliminating collisions and facilitating smooth insertion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the insertion section is formed on the bottom portion of the housing, then the connector structure is compact, but the connection target cannot be smoothly inserted along the mounting board surface

Engineering Contradiction:
Improveconnector structureVSAvoidinsertion operation
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The invention changes the spatial arrangement by moving the insertion section from the bottom portion to the front surface of the housing, allowing the connection target to be inserted along the mounting board surface in a horizontal direction rather than requiring vertical lifting, thus resolving the contradiction between compact structure and ease of insertion

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

2Quantity of substance

If the connection target width increases to accommodate more pins, then the connection capacity increases, but deflection occurs making insertion difficult

Engineering Contradiction:
Improvenumber of pinsVSAvoidinsertion operation
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The invention changes the insertion direction from vertical (requiring lifting) to horizontal (along the mounting board surface), which reduces the bending moment and deflection of wide connection targets with many pins, making insertion easier despite increased width

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If guiding slopes are formed at the housing entrance, then insertion guidance is improved, but upright ends remain due to material limitations causing collision

Engineering Contradiction:
Improveinsertion guidanceVSAvoidcollision with upright ends
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The invention removes the harmful upright ends by changing the insertion direction to horizontal, so the connection target passes alongside rather than colliding with the upright ends of contacts, eliminating the collision problem while maintaining guidance functionality

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS9252516B2Connector
Publication Date: 2016.02.02 JAPAN AVIATION ELECTRONICS IND LTD
  • US9252516B2 patent drawing
  • US9252516B2 patent drawing
  • US9252516B2 patent drawing

AI summary

A connector includes a housing having an insertion section into which a connection end of a sheet-shaped connection target is inserted, and a plurality of contacts held by the housing so as to extend in an insertion direction of the connection target and be aligned along a direction across the insertion direction of the connection target, wherein each contact to be mounted by soldering on the top surface of the mounting board on a side of insertion of the connection target has at its end on the side of insertion of the connection target a surface of flat shape to be mounted on the top surface of the mounting board, and a sloping surface which is inclined at a predetermined angle of less than 90 degrees with respect to the surface to be mounted for guiding the connection end of the connection target to the insertion section.