U.S. patent application number 09/737573 was filed with the patent office on 2002-06-20 for resilient sheet of connect port for isolating electromagnetic waves.
Invention is credited to Cheng, Ying-Yie.
Application Number | 20020076524 09/737573 |
Document ID | / |
Family ID | 24964426 |
Filed Date | 2002-06-20 |
United States Patent
Application |
20020076524 |
Kind Code |
A1 |
Cheng, Ying-Yie |
June 20, 2002 |
RESILIENT SHEET OF CONNECT PORT FOR ISOLATING ELECTROMAGNETIC
WAVES
Abstract
The present invention proposes a resilient sheet of connect port
for isolating EM waves, which sheet comprises a main body of
rectangular sheet and an outer frame bent toward the same direction
from the edge of the main body. The cross section of the outer
frame is U-shaped, and a plurality of bumps equally spaced are
formed on the outer side surface thereof. A plurality of resilient
plates and resilient projective ears slanting forwards are formed
on the edge of the outer frame. A raised point is formed on each of
the resilient projective ears. The raised points will contact a
rear plate set of the case of a computer. The resilient projective
ears will be bent backwards due to the push of the rear plate
set.
Inventors: |
Cheng, Ying-Yie; (Taipei
Hsien, TW) |
Correspondence
Address: |
Rosenberg, Klein & Lee
Suite 101
3458 Ellicott Center Drive
Ellicott City
MD
21043
US
|
Family ID: |
24964426 |
Appl. No.: |
09/737573 |
Filed: |
December 18, 2000 |
Current U.S.
Class: |
428/122 |
Current CPC
Class: |
Y10T 428/24008 20150115;
Y10T 428/24198 20150115; H05K 9/0016 20130101; Y10T 428/24182
20150115 |
Class at
Publication: |
428/122 |
International
Class: |
B32B 003/02 |
Claims
I claim:
1. A resilient sheet of connect port for isolating electromagnetic
waves, comprising: a main body of rectangular sheet; an outer frame
bent toward the same direction from four edges of said main body,
the cross section of said outer frame being U-shaped, a plurality
of bumps equally spaced being formed on the outer side surface of
said outer frame, said resilient sheet of connect port being
retained on a rear window of the case of a computer through said
bumps; and a plurality of resilient plates and resilient projective
ears formed at the longitudinal and transverse positions along the
outer edge of said outer frame, each said resilient projective ear
being situated between two adjacent said resilient plates, a raised
point being formed on each said resilient projective ear, said
raised points contacting on said rear plate set of the case of the
computer to increase the count of contact points of said resilient
plates with said rear plate set so that the object of isolating
electromagnetic waves can be achieved.
2. The resilient sheet of a connect port for isolating
electromagnetic waves as claimed in claim 1, wherein a gap is
formed between said resilient plate and said resilient projective
ear.
3. The resilient sheet of a connect port for isolating
electromagnetic waves as claimed in claim 1, wherein an indication
faceplate is joined on said main body, and insertion holes of
connector corresponding to insertion holes at the rear window of
the case of the computer are formed on said indication faceplate
and said main body.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a resilient sheet of
connect port for isolating electromagnetic waves and, more
particularly, to a resilient sheet of connect port, which is
retained on a rear window of the case of a computer through a
plurality of bumps and contacts a rear plate set of the case of the
computer through a plurality of raised points of resilient
projective ears. Thereby, the count of contact points of the
resilient sheet with the rear plate set can be increased so that
electromagnetic (EM) waves will not leak easily.
BACKGROUND OF THE INVENTION
[0002] For general electronic products, when the internal
electronic components thereof operate, EM waves will be generated
and emitted out because of EM oscillation. The EM waves have
negative influences on the human body. Moreover, due to rapid
development of electronics and information industries, computers
have been widely used. Computers of fast speed cause larger
influences because of higher frequency. Therefore, when designing
and manufacturing computers, the problem of preventing EM waves
must be carefully considered so as to reduce the extent of leakage
of EM waves to minimum.
[0003] As shown in FIGS. 1 and 2, a prior art resilient sheet of
connect port comprises a main body 1a of rectangular sheet and an
outer frame 10a, which is bent toward the same direction from four
edges of the main body 1a. The cross section of the outer frame 10a
is U-shaped, and a plurality of bumps 11a equally spaced are formed
on the outer side surface thereof. The resilient sheet of connect
port is retained on a rear window of the case of a computer through
the bumps 11a. A resilient plate 12a then contacts a rear plate set
2a.
[0004] However, because both the rear plate set 2a and the
resilient plate 12a of the resilient sheet of connect port are
metal plates, they can not made completely flat in the fabrication
process, and they will easily deform due to external forces so that
they cannot stick each other tightly, as shown in FIG. 2A.
Moreover, because there are very few contact points, many gaps will
be formed so that the effect of isolating EM waves cannot be
obtained. The present invention aims to resolve the above problems
in prior art.
SUMMARY OF THE INVENTION
[0005] The primary object of the present invention is to provide a
resilient sheet of connect port for isolating EM waves. A plurality
of resilient projective ears are formed on the edges of an outer
frame of the resilient sheet. Raised points are formed on the
resilient projective ears. The count of contact points of the
resilient sheet with a rear plate set of the case of a computer is
increased through the contact of the raised points with the rear
plate set so that the extent of leakage of EM waves can be
reduced.
[0006] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawings, in
which:
BRIEF DESCRIPTION OF THE DRAWINGS:
[0007] FIG. 1 is a perspective view of a prior art resilient sheet
of a connect port;
[0008] FIG. 2 is a side cross-sectional view of a prior art
resilient sheet of a connect port;
[0009] FIG. 2A is an enlarged view of part A shown in FIG. 2;
[0010] FIG. 3 is a perspective view of the present invention;
[0011] FIG. 3A is an enlarged view of part A shown in FIG. 3;
[0012] FIG. 4 is a side cross-sectional view of the present
invention;
[0013] FIG. 4A is an enlarged view of part A shown in FIG. 4;
and
[0014] FIG. 5 is a perspective assembly view of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] As shown in FIGS. 3 and 4, the present invention provides a
resilient sheet of connect port for isolating EM waves, which sheet
is retained on a rear window 20 of the case of a computer. The
resilient sheet of connect port comprises a main body 1 of
rectangular sheet and an outer frame 10, which is bent toward the
same direction from four edges of the main body 1. The cross
section of the outer frame 10 is U-shaped, and a plurality of bumps
11 equally spaced are formed on the outer side surface thereof. A
plurality of resilient plates 12 and resilient projective ears 13
slanting forwards are formed on the edge of the outer frame 10, as
shown in FIG. 3A. Each resilient projective ear 13 is situated
between two adjacent resilient plates 12. A gap 130 is formed
between the resilient plate 12 and the resilient projective ear 13.
The reason is that when two contact sides contact each other, more
contact points can be obtained if one contact side is divided into
several sections so that gap in between can be reduced. A raised
point 131 is formed on each of the resilient projective ear 13. The
raised points 131 contact tightly on a rear plate set 2 so as to
increase the count of contact points 14 of the resilient sheet of
connect port with the rear plate set 2, as shown in FIG. 4A.
[0016] Because raised points 131 are formed on the plurality of
resilient projective ears 13 at the outer edge of the resilient
sheet of connect port for isolating EM waves of the present
invention, the raised points 131 will contact the rear plate set 2
of the case of the computer. The resilient projective ears 13 will
be bent backwards due to the push of the rear plate set 2. Because
the resilient plates 12 are separated from the resilient projective
ears 13 by gaps 130, they will not be bent backwards. The resilient
plates 12 can contact the rear plate set 2 so that tight contact
can be achieved between the edge of the resilient sheet of connect
port and the rear plate set 2. Therefore, the present invention can
have more contact points 14 than a prior art resilient sheet of
connect port can. Moreover, much gap can be reduced. Therefore, the
present invention has a better effect of isolating EM waves than a
prior art resilient sheet of connect port does.
[0017] Furthermore, as shown in FIG. 5, a reinforcing pad 3 can be
riveted on the main body 1 of the present invention. An indication
faceplate 4 can be attached on the reinforcing pad 3. Insertion
holes of connector corresponding to insertion holes at the rear
window 20 of the case of the computer are formed on the main body
1, the reinforcing pad 3, and the indication faceplate 4 to
facilitate the recognition of positions of insertion holes for a
user.
[0018] To sum up, the present invention provides a resilient sheet
of connect port for isolating EM waves. More contact points of the
resilient sheet of connect port with the rear plate set can be
obtained so as to achieve a better effect of isolating EM
waves.
[0019] Although the present invention has been described with
reference to the preferred embodiments thereof, it will be
understood that the invention is not limited to the details
thereof. Various substitutions and modifications have been
suggested in the foregoing description, and others will occur to
those of ordinary skill in the art. Therefore, all such
substitutions and modifications are intended to be embraced within
the scope of the invention as defined in the appended claims.
* * * * *