Reinforced right-angle type board edge connector

Patent metadata

Field	Value
Publication number	US-9570824-B1
Application number	US-201514863420-A
Country	US
Kind code	B1
Filing date	Sep 23, 2015
Priority date	Sep 23, 2015
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

An information handling system (IHS) includes a reinforced edge card connector having a terminal block having a mounting surface attached to a surface of a first Printed Circuit Board (PCB). A connector housing has a connector opening aligned in parallel to the surface of the PCB to receive an edge of a second PCB. An upper row of upper conductors and a lower row of lower conductors are positioned in respective opposition to frictionally engage opposite sides of the edge of the second PCB, wherein the upper conductors are cantilevered pins. The connector housing exposes a bent portion of the cantilevered pins of the upper row of upper conductors. A flexible sheet is attached to an outward surface of the connector housing and to exposed surfaces of the upper row of upper conductors to create a binding force to multiple cantilevered pins to resist deformation.

First claim

What is claimed is:

1. An information handling system (IHS) comprising:
a housing;
a first printed circuit board (PCB) received in the housing:
an edge card connector comprising:
a terminal block having a mounting surface attached to a surface of the first PCB;
a connector housing having a connector opening aligned in parallel to the surface of the first PCB to receive an edge of a second PCB;
an upper row of upper conductors and a lower row of lower conductors positioned in respective opposition to frictionally engage opposite sides of the edge of the second PCB, wherein each of the upper conductors comprises: (i) a distal portion that deflects outwardly from the first PCB within the connector opening of connector housing, (ii) a mounting portion that extends to the mounting surface of the terminal block, and (iii) a bent portion that is attached between the distal portion and the mounting portion, wherein the connector housing exposes the bent portion of the upper conductors of the upper row; and
a flexible sheet attached to an outward surface of the connector housing and to exposed surfaces of the upper row of upper conductors to create a binding force to multiple upper conductors to resist deformation;
wherein the upper conductors each comprise a cantilevered pin having a lance feature that forms an interference attachment between the terminal block and the connector housing; and
wherein the lance feature comprises an angled knife edge that laterally extends to form a lance feature width of more than 0.25 mm.

2. The IHS of claim 1 , wherein the lance feature comprises a lance feature width of not greater than 0.284 mm.

3. The IHS of claim 1 , further comprising an adhesive layer between the flexible sheet and the outer surface of the connector housing and the exposed surfaces of the upper row of upper conductors.

4. The IHS of claim 1 , wherein the edge card connector comprises a Peripheral Component Interconnect Express (PCI-E) connection.

5. The IHS of claim 1 , wherein the flexible sheet comprises a plastic sheet.

6. An edge card connector for mounting on printed circuit board (PCB) of an information handling system (IHS), the edge card connector comprising:
a terminal block having a mounting surface attachable to a surface of a first PCB;
a connector housing having a connector opening aligned in parallel to the surface of the PCB to receive an edge of a second PCB;
an upper row of upper conductors and a lower row of lower conductors positioned in respective opposition to frictionally engage opposite sides of the edge of the second PCB, wherein each of the upper conductors comprises a distal portion that deflects outwardly from the first PCB within the connector opening of connector housing, a mounting portion that extends to the mounting surface of the terminal block, and a bent portion that is attached between the distal portion and the mounting portion, wherein the connector housing exposes the bent portion of the upper conductors of the upper row;
wherein the upper conductors each comprise a cantilevered pin having a lance feature that forms an interference attachment between the terminal block and the connector housing; and
a flexible sheet attached to an outward surface of the connector housing and to exposed surfaces of the upper row of upper conductors to create a binding force to multiple cantilevered pins to resist deformation;
wherein the lance feature comprises an angled knife edge that laterally extends to form a lance feature width of more than 0.25 mm.

7. The edge card connector of claim 6 , wherein the lance feature comprises a lance feature width of not greater than 0.284 mm.

8. The edge card connector of claim 6 , further comprising an adhesive layer between the flexible sheet and the outer surface of the connector housing and the exposed surfaces of the upper row of upper conductors.

9. The edge card connector of claim 6 , wherein the edge card connector comprises a Peripheral Component Interconnect Express (PCI-E) connection.

10. The edge card connector of claim 6 , wherein the flexible sheet comprises a plastic sheet.

11. A method of fabricating a reinforced edge card connector for mounting on a first printed circuit board (PCB) of an information handling system (IHS), the method comprising:
forming an upper row of upper conductors and a lower row of lower conductors, wherein each of the upper conductors comprises a distal portion, a mounting portion, and a bent portion connecting the distal and mounting portions;
forming a terminal block proximally attached to the mounting portion of the upper row of upper conductors and the lower row of lower conductors positioned in respective opposition to frictionally engage opposite sides of the edge of a second PCB;
attaching a mounting surface of a terminal block to a surface of a first PCB;
attaching, to the terminal block, a connector housing having a connector opening aligned in parallel to the surface of the first PCB to receive an edge of the second PCB;
wherein attaching, to the terminal block, the connector housing comprises inserting an upper conductor comprising a cantilevered pin having a lance feature to form an interference attachment between the terminal block and the connector housing; and
attaching a flexible sheet attached to an outward surface of the connector housing and to exposed surfaces of the upper row of upper conductors to create a binding force between multiple upper conductors to resist deformation;
wherein the lance feature comprises an angled knife edge that laterally extends to form a lance feature width of more than 0.25 mm.

12. The edge card connector of claim 11 , wherein the lance feature comprises a lance feature width of not greater than 0.284 mm.

13. The method of claim 11 , wherein attaching a flexible sheet comprises applying an adhesive layer between a plastic flexible sheet and the outer surface of the connector housing and the exposed surfaces of the upper row of upper conductors.

14. The method of claim 11 , wherein the edge card connector comprises a Peripheral Component Interconnect Express (PCI-E) connection.

Assignees

• Dell Products Lp

Inventors

• Chien Tung Yu
• Chen Chih-Wei
• Lee Ju-Hao

Classifications

• H01R12/7076 Primary

  for connection between PCB and component, e.g. display · CPC title

• H01R13/514

  composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them · CPC title

• H01R13/504

  different pieces being moulded, cemented, welded, e.g. ultrasonic welding, or swaged together · CPC title

• H01R12/724 Primary

  containing contact members forming a right angle · CPC title

• H01R13/424

  Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part · CPC title