USB electrical connector

Details USB electrical connector USB electrical connector

2000-09-12

2001-07-10

Nguyen, Khiem (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

Reexamination Certificate

active

06257930

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an electrical connector, more particularly to a USB electrical connector.
2. Description of the Related Art
There are two standard types of USB (Universal Serial Bus) electrical connectors, namely A-type and B-type USB connectors, that are currently adopted for computers.
FIG. 1
illustrates a conventional A-type USB electrical connector. The connector includes an insulative seat body
10
that has a planar top wall
101
and a pair of protrusions
100
projecting upwardly from the top wall
101
, a plurality of terminals
12
mounted on the seat body
10
, a metal shell
11
that snugly receives the seat body
10
and that has a front open end for insertion of the seat body
10
, and a planar top wall
111
formed with a pair of openings
110
adjacent to the front open end and engageable with the protrusions
100
for securing the seat body
10
to the metal shell
11
, and a plastic housing
13
having a front open end
130
for insertion of the assembly of the seat body
10
and the metal shell
11
so as to enclose the same.
Referring now to
FIGS. 2A
to
3
B, in combination with
FIG. 1
, since the protrusions
100
of the seat body
10
pushes against a bottom face of the top wall
111
of the metal shell
11
during insertion of the seat body
10
into the metal shell
11
, there is a tendency for the top wall
111
of the metal shell
11
to be permanently deformed due to forces resulting from the pushing action. Moreover, the deformation of the metal shell
11
increases the difficulty of inserting the assembly of the seat body
10
and the metal shell
11
into the plastic housing
13
.
SUMMARY OF THE INVENTION
Therefore, the object of the present invention is to provide a USB electrical connector that is capable of overcoming the aforementioned drawback.
According to the present invention, a USB electrical connector comprises: an insulative seat body having a planar top wall and a protrusion projecting upwardly from the top wall; a plurality of terminals mounted on the seat body; and a metal shell snugly receiving the seat body and having a front open end for insertion of the seat body, and a planar top wall which has an opening adjacent to the front open end to interlock with the protrusion, a slit that extends from the front open end to the opening along a line parallel to the direction of insertion of the seat body, and two opposite resilient anchor plate portions that extend between the front open end and the opening on two opposite sides of the slit, the anchor plate portions being flexible to prevent permanent deformation due to pushing by the protrusion when the seat body is inserted into the metal shell.


REFERENCES:
patent: 2776415 (1957-01-01), McGinley
patent: 5772472 (1998-06-01), Beutler et al.
patent: 6007380 (1999-12-01), Shimojyo

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