GB2387278A

GB2387278A - Interference-reduction connector

Info

Publication number: GB2387278A
Application number: GB0207954A
Authority: GB
Inventors: Rick Yang
Original assignee: All Best Electronics Co Ltd
Current assignee: All Best Electronics Co Ltd
Priority date: 2002-03-04
Filing date: 2002-04-05
Publication date: 2003-10-08
Anticipated expiration: 2022-04-05
Also published as: DE20206594U1; FR2836758A1; GB2387278B; GB0207954D0

Abstract

A connector includes a plastic body 10 having an iron case 40 over an outer portion of front end thereof, an insertion plate 20 connected to a rear end of the plastic body 10, an intermediate cable including two rows of conducting cores 501 separately set into upper rear and lower rear sides of the insertion plate 20, and two covering plates 30 separately covering the upper and lower sides of the insertion plate to hold the conducting cores in place and then integrally connected to the insertion plate after high-frequency heat sealing. The plastic body, the insertion plate, and the covering plates are provided with slots 102, 301 for receiving isolation plates 1021, 303 therein, so that terminals 1101 inserted in the plastic body 10 are individually surrounded by the isolation plates 1021, 303 to eliminate mutual interference and therefore enable stable transmission of signals at high speed.

Description

CONNE CTOR

BACKGROUND O F THE I EVENT I ON

5 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 10 stable transmission of signals.

With the increasingly developed technologies, computers have been designed to provide incredibly powerful functions. That is, the central processing 15 unit (CPU) inside each computer has higher operation ability then even Meanwhile, the Internet has become so popular that upload and download at extremely high speed via wide-band optical fiber, asymmetric digital subscriberline (ADSL) and the like has been developed 20 in response to user demands. Thus, peripheral Active/passive components for using the Internet must have matched high operating speed. A cable for transmitting signals between the CPU of a computer and the Active/passive components is therefore 25 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 5 perspective views, respectively, of a conventional connector. As shown, the conventional connector includes an iron case 4, a plastic body 1, an insertion plate 2, two hold-down plates 3, an iron case 4 put onto an outer portion of front end of the plastic body 10 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 15 plastic body 1 includes two rearward extended lateral walls 12, inner surfaces of which are provided with two guide ways 13 each having 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 20 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.

25 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 a rear side of the plastic body 1. The insertion 5 plate 2 is also provided at 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 10 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 15 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.

20 Each of the covering plates 3 is provided at middle points of two lateral sides with two projections 31.

The covering 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 25 locate in the terminal slots 21. The projections 31

may be vertically guided into the insertion slots 15 to connect the covering plates 3 to the plastic body 1 and to separately locate at upper and lower sides of the insertion plate 2.

Each of the intermediate 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 10 previously arranged conducting wire 51 in place. A fixed length of front ends of the conducting wire 51 are extended from a front side of the clamp plate 53 to expose a fixed length of bare wires 52.

15 To assemble the above-described conventional connector, first connect the insertion plate 2 to the rear side of the plastic body 1, and then set the clamp plates 53 of the cables 5 in the recesses 24 at upper and lower sides of the insertion plate 2, as shown in 20 Fig.2, such that the conducting wire 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 covering plates 3 are connected to the plastic body 25 1 to separately locate 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 covering plates 3 are held in place, the pressed ribs 32 provided at the front part of the 5 covering plates 3 are separately located in corresponding terminal slots 21. Finally, rear parts of the covering 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 10 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 iron cased is then put onto the portion of front end of the plastic body l to complete the connector.

Please refer to Fig. 4 that is a sectional view taken along line A-A' of Fig. 3. After the rear parts of the covering plates 3 are integrally connected to the tops of the spacing ribs 23 and the pressed ribs 32 at the 20 front parts of the covering 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 25 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 to result in mutual interfere of the terminals with one another and 10 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 to 15 result in worse signal transmission.

3.The terminals might have static electricity surrounded them due to some external factors that affect the connector. Such static electricity 20 forms an interference source in signal transmission. It is therefore desirable to develop an improved connector having individually isolated terminals to 25 eliminate mutual interference of terminals with one

another during high-speed signal transmission and enable fasterand more stable transmission of signals.

SUMMARY O F THE I NVENT I ON

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 10 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 15 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 20 possibly produced around terminals and therefore prevents the signaltransmission frombeing interfered by static electricity.

To achieve the above and other objects, the connector 25 of the presentinvention mainlyincludes 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 intermediate cable including two rows of conducting wire separately set onto upper rear and 5 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 intermediate cable in place and then integrally connected to the insertion plate by 10 way of high-frequency heat sealing. The plasticbody, 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 15 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

25 embodiments and the accompanying drawings, wherein

Fig. 1 is an exploded perspective view of a conventional connector; 5 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 10 connector of Fig. 1; Fig. 4 is a sectional view taken along line A-A' of Fig. 3i 15 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 ofassembling 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; 10 Fig. 10 shows the fourth step of assembling the connector of the present invention by connecting an intermediate cable to the plastic body of the connector; 15 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 25 Fig. 6.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Please refer to Figs. 5 and 6 that are exploded and 5 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, an iron case 40, and intermediate cables 50. The iron case 40 10 is connected to and covers an outer portion of 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 15 upper and lower rows of correspondingly arranged terminal slots 101, into each of which a terminal 1011 is inserted, as shown in Figs. 7. A horizontal isolation slot 102 is provided between each upper terminal slot 101 and a corresponding lower terminal 20 slot 101, end 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 25 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 5 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 Figs. 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 15 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 terminallO11, a front end of which has been insertedinto the terminal slot 101 on the plastic body 10. Please refer to Fig. 20 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 25 10, such that the alternate horizontaland 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 front part of one side facing toward 5 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 lo 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 15 pressed ribs 301 for receiving a row of flat isolation plates 303 therein. After the intermediate 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 20 201 of the insertion plate 20 by way of high-frequency heat sealing.

Please refer to Fig. 10. The intermediate cable 50 includes a plurality of conducting wire 501 that are 25 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 cramp plates 503. Front ends of the conducting wire 501areprojected from a front side 5 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, 10 first slide the insertion plate 20 into the plastic body 10 via the guide slots 104, and separately set the two clamp plates 503 of the intermediate cable 50 onto upper and lower sides of the insertion plate 20, so that every conducting wire 501 is located in a 15 corresponding recess 203 between two adjacent spacing ribs 201, enabling the bare wire 502 of every conducting wire 501 to be soldered to the rear end of the corresponding terminal 1011. Thereafter, cover the two covering plates 30 onto upper and lower sides 20 of the insertion plate 20 with the pressed ribs 301 abutted against the spacing ribs 201. Finally, connect the pressed ribs 301 and the spacing ribs 201 together by way of high-frequency heat sealing, and put the steel case40ontothefront side of the plastic 25 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 5 line B-B of Fig. 6. As can be seen in Fig. 13, in the assembled connector, theisolation 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 10 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.

15 The present invention has been described with a preferred embodiment thereof end 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 20 by the appended claims.

Claims

C:l.aims: 1.Aconnector, comprisingaplastichodyhaving aniron case put over

an outer portion of front side "hereof, 5 an insertion plate connected to a rear side of said plastic body, the intermediate cables including two rows of conducting wire separately set onto upper rear and lower rear sides of said insertion plate, and two covering plates separately covered onto 10 upper and lower sides of said insertion plate to hold said conducting wire of said intermediate cable in place; said plastic body including a plurality of upper end 15 lower terminal slots arranged in a predetermined manner for each receiving a terminal therein, and a plurality of horizontal and vertical isolation slots; each of said horizontal isolation slots being provided between one said upper terminal slot and 20 a corresponding one of said lower terminal slot, and each of said vertical first isolation slot being provided between any two adjacent pairs of said upper and said lower terminal slots; said horizontal and vertical first isolation slots receiving front 25 parts of a plurality of first isolation plates

therein, and said two rows of conducting wire of said intermediate cable teeing conveniently positionedin rear openings of said first isolation plates; 5 said insertion plate teeing provided et surfaces with a plurality of spacing ribs, and a plurality of recesses defined between two said spacing ribs that are adjacent to each other to separately receive rear ends of said terminals therein, and said insertion 10 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 corresponding to said first isolating plates inserted in said plastic body, so as to engage with 15 rear ends of said first isolation plates; and each of said two covering plates being provided at a side with a plurality of third isolation slots corresponding to said open side of said first 20 isolation plates on said plastic body, and at front part of one side facing toward said insertion plate with a plurality of pressed ribs corresponding to and adapted to integrally connect to tops of said spacing ribs on said insertion plate; and a row of 25 connected second isolation plates being inserted

into said third isolation slots provided on each of said covering plates, such that each said second isolation plate end a corresponding one of said first isolation plates together provide an isolation 5 layer surrounding each said terminal located in said terminal slot; whereby said terminals on said plastic body are individually isolated without mutually interfering 10 with one another during transmission of signals at high speed, enabling signals to be transmitted faster and more stably.
2. The connector as claimed in claim 1, wherein said 15 isolation plates inserted onto said plastic body are so arranged that they look like a series of letters if.
3. The connector as claimed in claim 1, wherein said 20 isolation slots on said insertion plate are y arranged and look like a series of letters H.
4. The connector as claimed in claim 1, wherein each of said isolation plates inserted into said third 25 isolation slot at the outer portion of front side

of each said covering plate is in the form of " - ".
5. A connector comprising a plastics body having an iron case put over an outer portion of the front end thereof, an insertion plate connected to the rear end of the 5 plastics body, an intermediate cable including two rows of conducting wires separately set onto upper rear and lower rear sides of the insertion plate, and two covering plates separatelycovered onto upper and lower sides of the insertion plate to hold the conducting wires of the intermediate cable in place and for integrally connecting to the insertion plate by way of high-frequency heat sealing, wherein the plastics body, the 10 insertion plate, and the covering plates are provided at predetermined positions with slots for receiving isolation plates therein, so that terminals inserted in the plastics body are individually surrounded by the isolation plates to eliminate mutual interference and thereby enable stable transmission of signals at high speed.