ZIF socket

• US 20030132018A1
• Filed: 09/04/2002
• Published: 07/17/2003
• Est. Priority Date: 01/11/2002
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Huang, Min, Okita, Masao
• Granted Patent: US 6,669,498 B2
• Time in Patent Office: Days
• US Class Current: 174/50
• CPC Class Codes: H05K 13/0447 Hand tools therefor

Abstract

A ZIF socket (1) includes a base (2) having a number of terminals (5) received therein, a movable cover (3), and a cam mechanism (4) assembled on the cover and the base. The cam mechanism includes a cam (41) and a base ring (42) attached to cam. The cam includes a driving section (411) engaging with the cover, a rotating section (412) engaging with the base, and a riveting section (413) extending from the rotating section. The riveting section has a bottom riveting surface (415) on a bottommost side and a V-shaped groove (416) defined in the bottom riveting surface. During riveting, the riveting section deforms more predictably under the riveting pressure, increasing the reliability of the riveted cam mechanism.

Claims

1. A ZIF socket comprising:

an insulating base having a plurality of terminals received therein, said insulating base defining an aperture therein;

a cover slidablely mounted on said insulating base, said cover having a receiving hole defined therein, said receiving hole being alignable with the aperture of the insulating base;

and a cam mechanism comprising a cam and a base ring cooperating with the cam, the cam having a driving section engagably received in the receiving hole, a rotating section extending from the driving section and engagably received in the aperture, and a riveting section extending from the rotating section and riveted against the base ring, said riveting section having a bottom surface and a groove defined in the bottom surface.

2. The ZIF socket as described in claim 1, wherein said groove of the cam is configured in a V-shape and is defined access a center of the bottom surface of said riveting section.

3. The ZIF socket as described in claim 2, wherein an axis of said rotating section is offset from that of said driving section a predetermined distance.

4. The ZIF socket as described in claim 2, wherein said cam defines an operating recess in a top surface of the driving section, which is generally parallel to said V-shaped groove for rotating the cam via a tool.

5. The ZIF socket as described in claim 1, wherein said cover forms a head portion and said receiving hole is defined in said head portion.

6. The ZIF socket as described in claim 5, wherein said aperture is defined at a front end of said insulating base.

7. A ZIF socket comprising:

an isolative base with a plurality of terminals therein;

an aperture defined in the base;

an insulative cover mounted on the base and slidable relative to the base;

a receiving holes defined in the cover in vertical alignment with the aperture;

a cam mechanism including a cam and a base ring, said cam including a driving section received in the receiving hole, a rotating section extending downwardly from the driving section and received in the aperture, and a riveting section downwardly extending from the rotation section and riveted against the base ring which confronts an undersurface of the base;

wherein said

riveting section is configured to define at least two independent rivet regions so as to allow a smaller controllable riveting force to be applied thereto for each of said rivet regions during riveting said cam to the base ring, thus possibility.

8. A riveting structure comprising:

a stationary piece defining a hole extending therethrough in a vertical direction;

a rotation piece defining a rotation section rotatably received in the hole;

an operation head located on a top portion of the rotation piece for rotating the rotation piece relative to the stationary piece;

a riveting section downwardly extending from the rotation section and riveted against a base ring which confronts an undersurface of the stationary piece;

wherein

said riveting section is configured to define a plurality of separate regions adapted to be respectively engaged with the base ring so as to be easy to be controllably riveted against the base ring without lateral deformation.