CN2770154Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises a butt joint part and a plurality of signal terminals, wherein the butt joint part is provided with a butt joint cavity and at least one longitudinally long tongue plate, and the butt joint cavity is used for containing a butt joint electric connector, and the tongue plate is convexly extending into the butt joint cavity. The signal terminals are respectively extended in rows on both longitudinally long side surfaces of the tongue plate, each of a plurality of signal terminal pairs is composed of two signal terminals in each row of the signal terminals, and ground terminals are arranged between the two adjacent signal terminal pairs in each row of the signal terminals. A first ground sheet is buried in the tongue plate and is arranged between two rows of signal terminal pairs on the tongue plate. The arrangement of the ground terminals and the first ground sheet can reduce the crosstalk interference between the adjacent signal terminal pairs in a better way.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector that can effectively prevent cross-talk.

[background technology]

For the computer and perimeter electronic equipment,, make the signal amount of required transmission in the whole system increase greatly in recent years gradually to functional diversities and intelligent development thereupon; Yet in the case, the outward appearance of computer and correlated parts but trend towards lightweight, microminiaturized direction develops.In order to cooperate the working transmission that electronic product increases greatly and the double-deck growth requirement of volume microminiaturization simultaneously, it is many and the less high density electrical connector of volume arises at the historic moment to be applied in numbers of terminals in the high-frequency transmission, and is applied to more and more widely in computer and the peripheral electronic equipment thereof.

Yet for the high density electrical connector in being applied in high-frequency transmission, its numbers of terminals is many, densely distributed, close together between two two-terminal, thereby when the high-frequency electronic signal passes through, very easily produce the phenomenon that interaction crosstalk disturbs between adjacent terminal, cause the signal transmission unstable and influence the normal operation of electronic equipment.So high density electrical connector can take variety of way to prevent cross-talk phenomenon in the signals transmission usually.

Common a kind of mode of eliminating the cross-talk phenomenon is every a signal terminal earth terminal to be installed promptly in high density electrical connector at present, as announce in the United States Patent (USP) the 6th on April 1st, 2003,540, No. 559 and announce in the United States Patent (USP) the 6th on February 26th, 2002,350, No. 134, in the electric connector that they disclose, terminal lists and has all adopted the arrangement mode of " any two adjacent signals terminals to be provided with earth terminal " in each row and each, wherein said a pair of signal terminal symmetrical configuration and in same row, being arranged side by side, earth terminal has a flat body portion (or whole for flat), the transverse width of described earth terminal corresponding to the horizontal span of a pair of signal terminal with at row to covering two pairs of adjacent earth terminals.

Yet, the employing aforesaid way no doubt can prevent the interference between signal terminal preferably by the shielding of flat earth terminal, yet, the transverse width of earth terminal is corresponding to the horizontal span of a pair of signal terminal in this electric connector, the position of arranging terminal on the electric connector is not to be used for the earth terminal of transmission signals to occupy in a large number, and this does not obviously meet the double-deck development trend of computer and high working transmission of electronic component and volume microminiaturization.

The mode of cross-talk when also having a kind of anti-stop signal to transmit in addition, as announce in shown in No. the 99113855th, the Chinese patent on May 5th, 2004, but the electric connector that it disclosed is the metallic conductor the side setting ground connection of terminal accommodating passage, and the minimum distance perseverance that makes arbitrary conducting terminal and its side metallic conductor is less than this terminal and the spacing of terminals of adjacent arbitrarily, makes by changing electric field around the terminal and magnetic field that the signal coupling efficiency reduces to reduce cross-talk between terminal.Yet this kind mode only can reduce cross-talk to a certain extent, for the cross-talk between the terminal of metallic conductor homonymy to improve effect unsatisfactory.

Therefore, necessaryly provide a kind of electric connector, can prevent effectively that cross-talk from can make the overall structure of electric connector comparatively compact again.

[utility model content]

The purpose of this utility model is to provide a kind of cross-talk that can effectively prevent can make the comparatively compact electric connector of overall structure again.

For reaching above-mentioned purpose, the utility model adopts following technical scheme: the utility model electric connector has the butt joint chamber that is used to accommodate the butt joint electric connector, it comprises: the docking section, and it has in order to the butt joint chamber of accommodating the butt joint electric connector and protrudes at least one the lengthwise hyoplastron that docks in the chamber; Several signal terminals in a row extend respectively on the two lengthwise sides of hyoplastron, and it is right to have the signal terminal that adjacent successively several are made up of two signal terminals in wherein every row of signal terminals; In every row of signal terminals adjacent two signal terminals between be provided with earth terminal; First ground strip be embedded in the hyoplastron and between two row of signal terminals on this hyoplastron between.

Compared with prior art, the utlity model has following beneficial effect: the arranging of the earth terminal and first ground strip can reduce preferably the adjacent signals terminal to interference, in addition, first ground strip is embedded in the described hyoplastron, thereby the both sides of the hyoplastron more relatively signal terminal that is used for transmission signals of can arranging, effectively utilized the overall space of electric connector, made that the structure of electric connector is comparatively compact.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional combination figure of another angle of the utility model electric connector.

Fig. 3 is the three-dimensional exploded view of the utility model electric connector.

Fig. 4 be the utility model electric connector one group of signal terminal to the spatial arrangement schematic diagram of earth terminal.

Fig. 5 is the front view of the utility model electric connector.

Fig. 6 be the utility model electric connector along A-A shown in Figure 5 to cutaway view.

Fig. 7 be the utility model electric connector along B-B shown in Figure 5 to cutaway view.

Fig. 8 is the vertical view of the utility model electric connector.

Fig. 9 is the front view that is installed in the terminal on the terminal position plate of the utility model electric connector.

Figure 10 is the upward view that is installed in the terminal on the terminal position plate of the utility model electric connector.

[embodiment]

Please join Figure 1 and Figure 2, the utility model electric connector 100, have the butt joint chamber that is used to accommodate the butt joint electric connector, it mainly comprises insulating body 1, is assembled in the metal shielding casing 2 of insulating body 1, terminal 3, with butt connector mutually the button latch part 4 of holding, grab board 5 and terminal position plate 7 in order to what this electric connector 100 is installed on circuit board (not shown).Electric connector 100 also define have by after the butt joint direction C that extends forward.

Please join shown in Figure 3ly, insulating body 1 comprises lengthwise base portion 10, protrudes into the hyoplastron 11 of almost parallel of the two lengthwise configurations of butt joint in the chamber and the installation portion 12 that extends back from base portion 10 two ends forward from base portion 10.Two longitudinal ends of hyoplastron 11 are respectively equipped with the floor 111 that connects two hyoplastrons 11.The both sides of each hyoplastron 11 and centre are respectively equipped with plurality of terminals accepting groove (not label), and these terminal containing slots extend back and run through base portion 10.Described butt joint chamber and be arranged in butt joint hyoplastron 11 in chamber and the docking section that floor 111 has constituted the utility model electric connector 100.

Please refer to Fig. 3 and shown in Figure 4, plurality of terminals 3 is immobilizated on the insulating body 1, it comprise main part (not label), certainly this main part extend be immobilizated in the welding foot that contact arm in hyoplastron 11 grooves and autonomous body extend and be approximately perpendicular to contact arm.Described terminal 3 comprises that by the power supply terminal 33 of signal terminal to 31 signal terminals of forming, earth element 32 and broad, each signal terminal comprises two signal terminals that transmit positive and negative signal respectively to 31.

Please refer to Fig. 3 to shown in Figure 7, described signal terminal in a row is contained in the lengthwise two sides of each hyoplastron 11 and has the contact site that protrudes in the butt joint chamber, be provided with signal terminal that adjacent successively several are made up of two signal terminals in wherein every row of signal terminals to 31, and signal terminal of each row to 31 with the vertical horizontal cross direction of longitudinally on the some column signal terminals of corresponding one by one formation to 31, as Fig. 4 and shown in Figure 5.

Described earth element 32 comprises earth terminal 321, first ground strip 322 and second ground strip 323.Described earth terminal 321 also is contained in the both sides of hyoplastron 11 and between the adjacent signal terminal of every row of signal terminals centering two is to 31, ginseng Fig. 2 and shown in Figure 7; The signal terminal that any two rows are adjacent is provided with signal terminal 31 one arranges the branch ground strip one to one to 31.This minute, ground strip comprised first ground strip 322 and second ground strip 323, first ground strip 322 of two row of signal terminals on same hyoplastron 11 between to 31 is embedded in the hyoplastron 11, second ground strip 323 of adjacent two row of signal terminals on different hyoplastrons 11 between to 31 is embedded in the base portion 10 between the hyoplastron 11, second ground strip 323 is short than first ground strip 322, and its front end does not stretch out the surface of base portion 10, please join Fig. 4 and shown in Figure 6.

Please refer to Fig. 4 and Fig. 6 to shown in Figure 9, in the present embodiment, the main part of described signal terminal is a right angle configuration, being described signal terminal comprises horizontal part 31b and vertical portion 31c to 31 main part, its horizontal part 31b is extended with contact arm 31a forward, and the end that vertical portion 31c is relative is extended with the welding foot that is approximately perpendicular to contact arm 31a; Adjacent two column signal terminals are connected to a plate body to the main part 321b one of the earth terminal 321 between 31, and the contact arm 321a of described earth terminal 321 and tabular main part 321b are used to isolate adjacent two column signal terminals to 31 main part and contact arm 31a; Described first ground strip 322 and second ground strip 323 for signal terminal to 31 band shapes that are roughly parallel to the right angle configuration of longitudinally accordingly, they are not less than a signal terminal to 31 spans on longitudinally at the width of longitudinally, in order to isolate two adjacent signal terminals of a column signal terminal centering to 31 contact arm 31a and main part.

With present embodiment in like manner, earth terminal 321 of the present utility model, first ground strip 322 and second ground strip 323 can also be following configuration: such as, the first ground connection dististyle 322 between adjacent two row of signal terminals are to 31, the second ground connection dististyle 323 be and the plate body of signal terminal to the one configuration of corresponding perpendicular type, they width that longitudinally extends respectively all more than or equal to delegation's signal terminal in all signal terminals to 31 on longitudinally total span.The corresponding arm of 31 contact arm 31a is connected as one the plate body of configuration such as, the first ground connection dististyle 322 between adjacent two row of signal terminals are to 31, the second ground connection dististyle 323 and signal terminal.For another example, the earth terminal 321 that is positioned at the correspondence of hyoplastron 11 both sides connects as one.

Arranging as Fig. 4 and shown in Figure 10 of the terminal welding foot of described power supply terminal and signal terminal all has an earth terminal welding foot between the right a pair of signal terminal welding foot of a pair of signal terminal welding foot that each signal terminal is right and arbitrary adjacent signal terminal.Arrange by this kind, signal terminal is also effectively reduced the cross-talk between 31 welding foot.

Thereby signal terminal makes shield effectiveness better to 31 all be grounded element 32 shieldings in the gamut of welding foot by its contact arm 31a.

Please refer to Fig. 1 and shown in Figure 3, described electric connector 100 also is provided with the shielding casing 2 with framework 21, this framework 21 is provided with rectangle open front and rectangle after-opening, the after-opening two ends of framework 21 outwards bend out lug 22 respectively, each side extends back two and has the clamping part 23 of breach, one side of base portion 10 is provided with projection 113 in correspondence position, and shielding casing 2 is fastened in projection 113 and is assembled in insulating body 1 by clamping part 23.The framework 21 of shielding casing 2 is surrounded above-mentioned two hyoplastrons 11 and two floors 111, the butt joint chamber that formation can be docked with butt connector, this butt joint chamber has interface, please join shown in Figure 8, the above-mentioned floor 111 that is positioned at hyoplastron 11 two ends slightly stretches out interface, so, it both can strengthen the intensity of hyoplastron 11, can play guide function in taking at electric connector 100 and butt connector again.For the rectangular electric connector in docking section, as shown in the figure, the width of the front end of this floor 111 can be not of uniform size, roughly is wedge, plays the anti-mis-insertion effect.

Please continue with reference to shown in Figure 3, the two ends of insulating body 1 base portion 10 installation portion 12 that extended back respectively, this installation portion 12 is in order to install latch part 4, to grab board 5 and terminal position plate 7.Each installation portion 12 is provided with the front end face 12a parallel with interface, end face 12b, bottom surface 12c.The end face 12b of installation portion 12 is a little less than the end face of base portion 10, and the both side edges of base portion 10 forms the butting section that exceeds end face 12b, and installation portion 12 also is provided with one and connects the end face 12b of installation portion 12, the installing hole 121 of bottom surface 12c.

Please refer to Figure 1 and Figure 2, shielding casing 2, latch part 4 and grab board 5 and be assembled in insulating body 1 successively.At first shielding casing 2 is fastened on the projection 113 by clamping part 23, and simultaneously, the lug 22 of shielding casing 2 is positioned on the front end face 12a of installation portion 12; Grab the buckling foot that board 5 comprises square base and is approximately perpendicular to base portion, the bottom surface 12c that the base portion of grabbing board 5 is placed in installation portion 12 goes up the square recess 122 that is provided with; Latch part 4 comprises that rectangle is grabbed button portion 40 and by grabbing the button portion 41 of grabbing certainly with through hole that extend button portion 40 Hous end both sides, latch part 4 a pair of grabbed button portion 40 and straddled on end face 12b, the bottom surface 12c in installation portion 12, be resisted against the lug 22 that front end face 12a goes up also common clamping shielding casing 2 from the Hou end face of grabbing button portion 41, when shielding casing 2, latch part 4 and when grabbing board 5 for metal, it can set up an electrical path.One cylinder lock fixing apparatus, such as nut, pass from the through hole of grabbing button portion 41 and installing hole 121 and with latch part 4 and grab board 5 and be immobilizated on the installation portion 12, the front end of grabbing button portion 40 is resisted against the butting section of base portion 10, when preventing that electric connector 100 from separating with butt connector, latch part 4 is subjected to pulling force and is loose.

Please refer to Fig. 2, Fig. 6, Fig. 7 and shown in Figure 9, electric connector 100 further comprises terminal position plate 7, and its two ends have extended upward the fastener pin respectively, location-plate 7 by the top fastener of fastener pin in the medial surface of installation portion 12 and be assembled between two installation portions 12.Location-plate 7 is provided with the plurality of rows terminal hole, and the welding foot of terminal 3 passes these terminal holes and is connected on the circuit board.The main part lower end of the lower end of the main part 321b of described earth terminal 321 and described first ground strip 322, second ground strip 323 is no more than the lower surface of terminal position plate 7.

In the foregoing description, signal terminal can be regarded as a high-frequency model to the zone at place, also can be provided with several these modules in the electric connector.

The foregoing description is that example is described the present invention with the electric connector with two hyoplastrons, and the hyoplastron of electric connector 100 of the present invention is not limited in two certainly.Same as the previously described embodiments all ought to being contained of arranging of all signal terminals, earth terminal and ground strip by claim of the present invention.

Claims (10)

1. electric connector, it comprises:

The docking section, it has in order to the butt joint chamber of accommodating the butt joint electric connector and protrudes at least one the lengthwise hyoplastron that docks in the chamber;

Several signal terminals in a row extend respectively on the two lengthwise sides of hyoplastron, and it is right to have the signal terminal that adjacent successively several are made up of two signal terminals in wherein every row of signal terminals;

It is characterized in that: in every row of signal terminals adjacent two signal terminals between be provided with earth terminal; First ground strip be embedded in the hyoplastron and between two row of signal terminals on this hyoplastron between.

2. electric connector as claimed in claim 1 is characterized in that: the signal terminal of described hyoplastron both sides is arranged to correspondence one by one, described first ground strip for along several and signal terminal of longitudinally setting to dividing ground strip one to one.

3. electric connector as claimed in claim 1 is characterized in that: only be provided with one first ground strip in the described hyoplastron, this first ground strip width that longitudinally extends more than or equal to delegation's signal terminal in the right total span of all signal terminals.

4. electric connector as claimed in claim 1 or 2 is characterized in that: the described earth terminal of hyoplastron both sides correspondence is one by one arranged, and two corresponding earth terminals connect as one.

5. electric connector as claimed in claim 1 is characterized in that: described electric connector includes two hyoplastrons, is provided with second ground strip between this two hyoplastron.

6. electric connector as claimed in claim 5 is characterized in that: described second ground strip does not protrude in the butt joint chamber.

7. electric connector as claimed in claim 5 is characterized in that: each row of signal terminals to the vertical horizontal cross direction of longitudinally on corresponding arranging, described second ground strip for along several and signal terminal of longitudinally setting to dividing ground strip one to one.

8. electric connector as claimed in claim 5 is characterized in that: described second ground strip width that longitudinally extends more than or equal to delegation's signal terminal in the right total span of all signal terminals.

9. electric connector as claimed in claim 1, it is characterized in that: described earth terminal is provided with the arm of main part and the extension of autonomous body, described electric connector includes two hyoplastrons, each row of signal terminals to respectively with the vertical horizontal cross direction of longitudinally on corresponding arranging, earth terminal of corresponding each row also respectively on horizontal cross direction correspondence arrange, the main part of corresponding earth terminal connects as one.

10. electric connector as claimed in claim 1 is characterized in that: described signal terminal has the main part of perpendicular type, and described first ground strip also has the perpendicular type main part between the right main part of respective signal terminal.

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