Information
-
Patent Grant
-
6648697
-
Patent Number
6,648,697
-
Date Filed
Tuesday, April 16, 200222 years ago
-
Date Issued
Tuesday, November 18, 200320 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 439 752
- 439 492
- 439 499
- 439 701
- 439 942
- 439 660
- 439 78
- 439 80
-
International Classifications
-
Abstract
A connector includes a plastic body having a metal case put over an outer portion of a front end thereof, an insertion plate connected to a rear end of the plastic body, an interconnecting cable including two rows of conducting wires separately set onto upper rear and lower rear sides of the insertion plate, and two covering plates separately covered onto upper and lower sides of the insertion plate to hold the conducting wire of the interconnecting cable in place and then integrally connected to the insertion plate by way of high-frequency heat sealing. The plastic body, the insertion plate, and the covering plates are provided at predetermined positions with slots for receiving isolation plates therein, so that terminals inserted in the plastic body are individually surrounded by the isolation plates to eliminate mutual interference and therefore enable stable transmission of signals at high speed.
Description
BACKGROUND OF THE INVENTION
The present invention relates to a connector, and more particularly to a connector having individually isolated terminals to eliminate mutual interference between the terminals during high-speed signal transmission and therefore enable faster and more stable transmission of signals.
With the increasingly developed technologies, computers have been designed to provide incredibly powerful functions. That is, the central processing unit (CPU) inside each computer has a higher operation capability than ever. Meanwhile, the Internet has become so popular that upload uploading and downloading at extremely high speed speeds, via wide-band optical fibers, asymmetric digital subscriber line (ADSL) and the like has been developed in response to user demands. Thus, peripheral Active/passive components for using the Internet must be matched to the high operating speeds. A cable for transmitting signals between the CPU of a computer and the Active/passive components is therefore particularly important, and connectors at two ends of the cable are responsible for successful high-speed signal transmission.
FIGS. 1 and 2
are exploded and partially assembled perspective views, respectively, of a conventional connector. As shown, the conventional connector includes a metal case
4
, a plastic body
1
, an insertion plate
2
, two hold-down plates
3
. The metal case
4
is put onto an outer portion of a front end of the plastic body
1
, and insertion plate
2
is connected to the rear end of the plastic body
1
.
Two rows of staggered terminals
11
are provided at upper and lower sides of the plastic body
1
. The plastic body
1
includes two rearwardly extended lateral walls
12
, inner surfaces of which are provided with two guide ways
13
. Each guideway
13
has a retaining hole
14
provided therein, such that the insertion plate
2
can be connected to a rear side of the plastic body
1
by sliding it into the guide ways
13
. Moreover, the two lateral walls
12
have two vertically extended insertion slots
15
symmetrically provided at their inner surfaces.
The insertion plate
2
is provided at two lateral sides with two retaining projections
22
for engaging with the retaining holes
14
in the guide ways
13
on the plastic body
1
, so as to hold the insertion plate
2
to the rear side of the plastic body
1
. The insertion plate
2
is also provided at its upper and lower surfaces with a plurality of terminal slots
21
corresponding to the terminals
11
. When the insertion plate
2
is connected to the rear side of the plastic body
1
, rear ends of the terminals
11
are located in corresponding terminal slots
21
on the insertion plate
2
. Rear ends of the terminal slots
21
are spaced from one another with spacing ribs
23
. Middle portions of the spacing ribs
23
at both upper and lower sides of the insertion plate
2
are cut away to provide two transversely extended recesses
24
. And, two vertically extended slots
25
are provided at two lateral sides of the insertion plate
2
corresponding to the insertion slots
15
on the plastic body
1
.
Each of the hold-down plates
3
is provided at middle points of two lateral sides with two projections
31
. The hold-down plates
3
are provided at a front part of one side facing the insertion plate
2
with a plurality of hold-down ribs
32
corresponding to and adapted to be located in the terminal slots
21
. The projections
31
may be vertically guided into the insertion slots
15
to connect the hold-down plates
3
to the plastic body
1
and to be separately located at upper and lower sides of the insertion plate
2
.
Each of the interconnecting cables
5
includes a plurality of conducting wire
51
that are arranged in a predetermined manner corresponding to the terminals
11
, and a transverse clamp plate
53
holding the previously arranged conducting wire
51
in place. A fixed length of front ends of the conducting wire
51
is extended from a front side of the clamp plate
53
to expose a fixed length of bare wires
52
.
To assemble the above-described conventional connector, the insertion plate
2
is first connected to the rear side of the plastic body
1
, and then G the clamp plates
53
of the cables
5
are set in the recesses
24
at upper and lower sides of the insertion plate
2
, as shown in
FIG. 2
, such that the conducting wires
51
are separately located in and between two adjacent spacing ribs
23
with the bare wires
52
pressed against rear ends of corresponding terminals
11
. Thereafter, the two hold-down plates
3
are connected to the plastic body
1
to be separately located at upper and lower sides of the insertion plate
2
, by guiding the projections
31
into the insertion slots
15
to engage with the slots
25
. After the hold-down plates
3
are held in place, the pressed ribs
32
provided at the front part of the hold-down plates
3
are separately located in corresponding terminal slots
21
. Finally, rear parts of the hold-down plates
3
are integrally connected to tops of the spacing ribs
23
, and the pressed ribs
32
at the front parts of the hold-down plates
3
are integrally connected at two lateral sides to two lateral sides of corresponding terminal slots
21
by way of high-frequency heat sealing, as shown in FIG.
3
. The metal case
4
is then put onto the of front end of the plastic body
1
to complete the connector.
Please refer to FIG.
4
. This figure is a sectional view taken along line A-A′ of FIG.
3
. After the rear parts of the hold-down plates
3
are integrally connected to the tops of the spacing ribs
23
, and the pressed ribs
32
at the front parts of the hold-down plates
3
are integrally connected at two lateral sides to two lateral sides of corresponding terminal slots
21
, the bare wires
52
are separately located in individual terminal slots
21
to tightly contact with rear ends of corresponding terminals
11
, such that short circuit at joints of the bare wires
52
and the terminals
11
can be eliminated.
The following disadvantages are found in the above-described conventional connector:
1. When signals are transmitted at high speed via the closely arranged terminals, electric energy on the terminals produces radiation resulting in mutual interference of the terminals with one another and accordingly slow and unstable signal transmission.
2. During high-speed transmission, electric energy on the connector produces radiation to form noise or crosstalk that interferes with other terminals, resulting in a poor signal transmission.
3. The terminals might have static electricity surrounded them due to external factors that affect the connector. Such static electricity forms an interference source in the signal transmission.
It is therefore desirable to develop an improved connector having individually isolated terminals to eliminate mutual interference of terminals with one another during high-speed signal transmission and enable faster and more stable transmission of signals.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a connector having individually isolated terminals, so that the terminals do not mutually interfere with one another during high-speed signal transmission, in order to enable faster and more stable transmission of signals.
Another object of the present invention is to provide a connector that has reduced noise or crosstalk produced during high-speed transmission, so that signals-can be more stably transmitted.
A further object of the present invention is to provide a connector that eliminates static electricity possibly produced around terminals and therefore prevents the signal transmission from being interfered by static electricity.
To achieve the above and other objects, the connector of the present invention mainly includes a plastic body having a steel case put over a front end thereof, an insertion plate connected to a rear end of the plastic body, an interconnecting cable including two rows of conducting wire separately set onto upper rear and lower rear sides of the insertion plate, and two covering plates separately covered onto upper and lower sides of the insertion plate to hold the conducting wire of the interconnecting cable in place and then integrally connected to the insertion plate by way of high-frequency heat sealing. The plastic body, the insertion plate, and the covering plates are provided at predetermined positions with slots for receiving metal isolation plates therein, so that terminals on the plastic body are individually surrounded by the isolation plates to eliminate mutual interference and therefore enable stable transmission of signals at high speed.
BRIEF DESCRIPTION OF THE DRAWINGS
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
FIG. 1
is an exploded perspective view of a conventional connector;
FIG. 2
is a partially assembled perspective view of the connector of
FIG. 1
before two hold-down plates are covered onto the connector;
FIG. 3
is a fully assembled perspective view of the connector of
FIG. 1
;
FIG. 4
is a sectional view taken along line A-A′ of
FIG. 3
;
FIG. 5
is an exploded perspective view of a connector according to the present invention;
FIG. 6
is an assembled perspective view of the connector of
FIG. 5
;
FIG. 7
shows the first step of assembling the connector of the present invention by inserting terminals into terminal slots provided on a plastic body of the connector;
FIG. 8
shows the second step of assembling the connector of the present invention by inserting isolation plates into isolation slots provided on the plastic body of the connector;
FIG. 9
shows the third step of assembling the connector of the present invention by connecting an insertion plate to the plastic body of the connector;
FIG. 10
shows the fourth step of assembling the connector of the present invention by connecting an interconnecting cable to the plastic body of the connector;
FIG. 11
shows the fifth step of assembling the connector of the present invention by covering two hold-down plates onto upper and lower sides of the plastic body of the connector to complete the assembling;
FIG. 12
is a sectional view taken along line A—A of
FIG. 6
; and
FIG. 13
is a sectional view taken along line B—B of FIG.
6
.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Please refer to
FIGS. 5 and 6
that are exploded and assembled perspective views, respectively, of a connector according to the present invention. As shown, the connector includes a plastic body
10
, an insertion plate
20
, two covering plates
30
, a metal case
40
, and interconnecting cables
50
. The case
40
is connected to and covers an outer portion of a front side of the plastic body
10
, and the insertion plate
20
is assembled to a rear side of the plastic body
10
.
The plastic body
10
is provided at the rear side with upper and lower rows of correspondingly arranged terminal slots
101
, into each of which a terminal
1011
is inserted, as shown in
FIG. 7. A
horizontal isolation slot
102
is provided between each upper terminal slot
101
and a corresponding lower terminal slot
101
, and a vertical isolation slot
102
is provided between any two adjacent pairs of upper and lower terminal slots
101
, such that the horizontal and the vertical isolation slots
102
are transversely and sequentially arranged across the rear side of the plastic body
10
like a series of letters H. Each of the isolation slots
102
receives a front part of an isolation plate
1021
therein, as shown in FIG.
8
. The plastic body
10
includes two rearward extended lateral walls
103
, inner surfaces of which are provided with horizontally extended guide slots
104
. And, two retaining holes
105
are separately formed in the guide slots
104
at predetermined positions for holding the insertion plate
20
to the rear side of the plastic body
10
, as shown in FIG.
9
.
The insertion plate
20
is provided at two lateral ends with two retaining projections
202
for engaging with the retaining holes
105
in the guide slots
104
of the plastic body
10
, and at upper and lower surfaces with a plurality of spacing ribs
201
. Any two adjacent spacing ribs
201
define a recess
203
between them for receiving a rear end of one corresponding terminal
1011
, a front end of which has been inserted into the terminal slot
101
on the plastic body
10
. Please refer to FIG.
9
. The insertion plate
20
is provided at a front side facing toward the rear side of the plastic body
10
with a plurality of alternately arranged horizontal and vertical isolation slots
204
corresponding to the isolation plates
1021
inserted into the plastic body
10
, such that the alternate horizontal and the vertical isolation slots
204
look like a series of letters H.
Please refer to FIG.
11
. Each of the covering plates
30
is provided at a front part of one side facing toward the upper or the lower surface of the insertion plate
20
with a plurality of raised pressed ribs
301
corresponding to the isolation ribs
201
of the insertion plate
20
, so that the covering plates
30
are covered onto upper and lower sides of the insertion plate
20
with the pressed ribs
301
abutting on tops of the isolation ribs
201
. The covering plate
30
is also provided at a front side with a plurality of isolation slots
302
, such that the isolation slots
302
are separately located between and below two adjacent pressed ribs
301
for receiving a row of flat isolation plates
303
therein.
FIG. 11
shows, using dashed lines, the isolation plates
303
being received within the slots
302
so that the plates
303
are below the pressed ribs
301
. After the interconnecting cable
50
and the terminals
1011
are connected together, the pressed ribs
301
of the covering plates
30
are integrally connected to the tops of the spacing ribs
201
of the insertion plate
20
by way of high-frequency heat sealing.
Please refer to FIG.
10
. The interconnecting cable
50
includes a plurality of conducting wires
501
that are previously arranged into two rows corresponding to the terminals
1011
in the upper and the lower row of terminal slots
101
, and then held in place with two horizontally extended clamp plates
503
. Front ends of the conducting wires
501
are projected from a front side of the clamp plates
503
to expose a fixed length of bare wires
502
for connecting to the terminals
1011
by way of soldering.
To assemble the connector of the present invention, the insertion plate
20
is slid into the plastic body
10
via the guide slots
104
, and the two clamp plates
503
of the interconnecting cable
50
are separately set onto upper and lower sides of the insertion plate
20
, so that every conducting wire
501
is located in a corresponding recess
203
between two adjacent spacing ribs
201
. This allows the bare wire
502
of every conducting wire
501
to be soldered to the rear end of the corresponding terminal
1011
. Thereafter, the two covering plates
30
are positioned to cover upper and lower sides of the insertion plate
20
with the pressed ribs
301
abutted against the spacing ribs
201
. Finally, the pressed ribs
301
and the spacing ribs
201
are connected together by way of high-frequency heat sealing, and e the steel case
40
is placed onto the front side of the plastic body
10
to complete the connector.
FIG. 12
is a sectional view taken along line A—A of
FIG. 6
showing the assembled connector of the present invention.
FIG. 13
is a fragmentary sectional view taken along line B—B of FIG.
6
. As can be seen in
FIG. 13
, in the assembled connector, the isolation plates
1021
and
303
provide a plurality of isolation layers to surround the terminals
1011
, so that every terminal
1011
is individually isolated. The individually isolated terminals
1011
do not mutually interfere with one another during transmission of signals at extremely high speed, so that the signals are transmitted faster and more stably.
The present invention has been described with a preferred embodiment thereof and it is understood that many changes and modifications in the described embodiment can be carried out without departing from the scope and the spirit of the invention as defined by the appended claims.
Claims
- 1. A connector, comprising:a plastic body having a plurality of upper and lower terminal slots arranged in a predetermined manner, each of said terminal slots receiving a terminal therein, said plastic body also having a plurality of horizontal and vertical first isolation slots, each of said horizontal first isolation slots being provided between one of said upper terminal slots and a corresponding one of said lower terminal slots, and each of said vertical isolation slots being provided between any two adjacent pairs of said upper and said lower terminal slots; a first isolation plate having a front part received within said horizontal and vertical first isolation slots wherein said first isolation plate is configured to appear as a series of H-shaped plates; a metal case positioned over an outer portion of a front side of said plastic body; an insertion plate connected to a rear side of said plastic body, said insertion plate having an upper and a lower surface, each of said upper and said lower surfaces of said insertion plate being provided with a plurality of spacing ribs, and a plurality of recesses, with each recess being defined between two adjacent ones of said spacing ribs, each said recess of said insertion plate separately receiving a rear end of a respective terminal therein, said insertion plate being provided at a front side facing toward said rear side of said plastic body with a plurality of horizontal and vertical second isolation slots disposed in alignment with said horizontal and vertical first isolation slots, and receiving a rear part of said first isolation plate therein; an interconnecting cable including two rows of conducting wires, each wire being separately positioned in a rear of each respective recess of said insertion plate for electrical coupling with a respective terminal; two covering plates separately covering said upper and lower surfaces of said insertion plate to hold said conducting wires of said interconnecting cable in place, each of said covering plates being provided with a plurality of third isolation slots, and each having at a side facing toward said insertion plate a plurality of pressed ribs corresponding to and adapted to be integrally connected to tops of said spacing ribs on said insertion plate, each said third isolation slot being disposed between two adjacent pressed ribs; and a second isolation plate received within said third isolation slots, such that said second isolation plate and said first isolation plate together provide an isolation layer that surrounds four sides of each said terminal located in each said recess of said insertion plate; whereby said terminals are individually isolated from each other without mutually interfering with one another during high speed transmission of signals, enabling signals to be transmitted faster and more stably.
- 2. The connector as claimed in claim 1, wherein said second isolation slots in said insertion plate are arranged to appear as a series of H-shaped slots.
- 3. The connector as claimed in claim 1, wherein said second isolation plate has an appearance of a series of flat, horizontal dashes.
US Referenced Citations (5)