CN207625011U - Socket connector - Google Patents

Abstract

The utility model discloses a socket connector, which comprises a metal shell, an insulator arranged in the metal shell and a plurality of terminals embedded in the insulator; the metal shell includes a top wall, a bottom wall, two side walls and a The insertion hole enclosed by the top wall, the bottom wall and the two side walls for the insertion of the plug connector, the insulator is provided with a tongue plate located in the insertion hole, and each terminal is arranged on the tongue plate; the socket connection The device also includes a first metal shield arranged in the metal shell, the first metal shield is located between the front and rear ends of each terminal, and is clamped with the tongue plate; the first metal shield is provided with two holes located in the insertion hole Two shrapnels are respectively located on the left and right sides of the tongue plate to elastically support the plug connector inserted into the socket hole. The first metal shield is elastically engaged with the plug connector inserted into the insertion hole. The socket connector can reduce the electromagnetic interference generated by itself and the external electromagnetic interference, and has better anti-interference performance.

Description

socket connector

technical field

The utility model relates to the technical field of connectors, in particular to a socket connector with better anti-interference performance.

Background technique

Universal Serial Bus (abbreviation: USB) is an external bus standard used to regulate the connection and communication between computers and external devices. It is also a technical specification for input and output interfaces and is widely used in personal computers and mobile devices. Information and communication products.

The existing USB receptacle connector generally includes a housing, an upper insertion component and a lower insertion component disposed in the housing. Wherein, the upper insertion assembly includes an upper insulator and an upper ground terminal and two pairs of upper differential signal terminals embedded in the upper insulator side by side; the lower insertion assembly includes a lower insulator and a lower ground terminal embedded in the lower insulator side by side, a Power signal terminal and a pair of lower differential signal terminals; the upper insulator and the lower insulator are clamped up and down; both sides of the housing are provided with inwardly curved and protruding elastic tabs, and when the plug and socket are inserted, the elastic tabs pass through Hold the plug elastically in the housing of the socket.

However, since the elastic lugs of the housing are provided with openings connecting the inside and the outside, this socket connector is relatively susceptible to external electromagnetic interference, thereby affecting the stability and high-speed performance of data transmission. In addition, for the short-body socket connector, due to the short distance between the two ends of the above-mentioned terminals (ie, the welding end and the contact end), signal interference is likely to occur between the two ends, which will also affect data transmission.

Utility model content

The purpose of the utility model is to provide a socket connector with better anti-interference performance, which can reduce the electromagnetic interference generated by itself and the external electromagnetic interference.

For this purpose, the utility model adopts the following technical solutions:

A socket connector, comprising a metal shell, an insulator disposed in the metal shell, and a plurality of terminals embedded in the insulator; the metal shell includes a top wall, a bottom wall, two side walls and An insertion hole for a plug connector to be inserted is enclosed between the top wall, the bottom wall and the two side walls, and the insulator is provided with a tongue plate located in the insertion hole, each The terminals are all arranged on the tongue plate; the receptacle connector also includes a first metal shield disposed in the metal shell, the first metal shield is located between the front and rear ends of the terminals between, and clamped with the tongue plate; the first metal shield is provided with two elastic pieces located in the insertion hole, and the two elastic pieces are respectively located on the left and right sides of the tongue plate for elastic resistance held by the plug connector inserted into the insertion hole. The first metal shield is elastically engaged with the plug connector inserted into the insertion hole.

Further, the first metal shield includes:

A shielding body, the shielding body is clamped with the insulator in a direction perpendicular to each of the terminals, and the two elastic pieces are respectively bent and extended from the left and right ends of the shielding body, and the two elastic pieces are both The elastic clip is connected to the outer surface of the tongue plate.

Further, both of the shrapnels include:

an elastic arm elastically engaged with the side surface of the tongue plate, the elastic arm tends to be coplanar with the outer surface of the tongue plate; and

A pressing portion that is disposed on one end of the elastic arm away from the shielding body and is bent and raised toward the side wall, the pressing portion is spaced from the side wall; the plug connector When inserted into the insertion hole, the pressing portion presses against the shell of the plug connector.

Furthermore, both sides of the tongue plate are provided with avoidance grooves, the two elastic pieces are respectively located in the two avoidance grooves, and the pressing part protrudes from the avoidance grooves.

Furthermore, the bottom surface of the shielding body is provided with a plurality of first clamping slots at intervals; the top surface of the upper insulator is protruded with a plurality of first clamping blocks, and each of the first clamping blocks is clamped into the corresponding In the first slot; the top of the shielding body is bent 90° toward one side and has a connecting portion, the top surface of the connecting portion is provided with a positioning hole, and the top surface of the tongue plate is correspondingly provided with a positioning column, and the positioning column is inserted into the corresponding positioning hole.

Further, the receptacle connector also includes a second metal shield disposed in the metal housing; the insulator includes an upper insulator and a lower insulator that are clamped together, and the first metal shield is clamped on the On the upper insulator; the bottom surface of the lower insulator is provided with a clamping groove along a direction perpendicular to each of the terminals, and the second metal shield is clamped in the clamping groove.

Furthermore, the top surface of the second metal shield is provided with a plurality of second locking blocks at intervals, and a plurality of second locking slots are opened in the locking groove, and each of the second locking blocks is connected to the corresponding first locking block. The two card slots are interference fit.

Furthermore, both the first metal shielding part and the second metal shielding part are connected to the metal shell by welding; the metal shell is provided with a welding piece extending downward for welding to the PCB board.

The beneficial effect of the utility model is: the signal interference between the front and rear ends of each terminal is blocked by arranging the first metal shielding piece, and the two shrapnels are elastically clamped with the plug connector, replacing the existing ones that pass through both sides of the housing. The method of clamping the elastic lugs with the plug connector eliminates the need to open openings due to the elastic lugs on the side of the housing, thereby reducing external electromagnetic interference and obtaining a socket connector with better anti-interference performance.

Description of drawings

Fig. 1 is a schematic diagram of the exploded structure of the socket connector provided by the utility model;

Fig. 2 is a structural schematic diagram of the clamping connection between the first metal shield and the tongue plate in Fig. 1;

Fig. 3 is a schematic diagram of an exploded structure of another angle of the socket connector provided by the present invention;

FIG. 4 is a schematic structural diagram of the clamping connection between the second metal shield and the lower insulator in FIG. 3 .

In the figure: metal shell 10; ground terminal 11; positioning slot 12; welding point 13; elastic tab 14; upper insulator 20; first block 21; positioning column 22; Terminal 30; upper terminal body 31; ratchet 311; groove 312; upper terminal welding foot 32; upper terminal DIP foot 33; lower insulator 40; locking groove 41; second locking groove 42; lower terminal 50; first metal Shield 60; shield body 61; first card slot 611; connecting portion 612; positioning hole 613; first avoidance groove 614; shrapnel 62; elastic arm 621; Block 71 ; second escape slot 72 .

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

As shown in Figures 1 to 4, a socket connector includes a metal shell 10, an insulator disposed in the metal shell 10, and a plurality of terminals embedded in the insulator; wherein the metal shell 10 includes a top wall 101 , the bottom wall 102, the two side walls 103, and the insertion hole 104 surrounded by the top wall 101, the bottom wall 102 and the two side walls 103 for the insertion of the plug connector. The inner tongue plate 201, each terminal is arranged on the tongue plate 201; the socket connector also includes a first metal shield 60 arranged in the metal shell 10, the first metal shield 60 is located between the front and rear ends of each terminal The first metal shield 60 is provided with two elastic pieces 62 located in the insertion hole 104, and the two elastic pieces 62 are respectively located on the left and right sides of the tongue plate 201 to elastically hold against the insertion hole 104. 104 inside the plug connector. The socket connector of the utility model blocks the signal interference between the front and rear ends of each terminal through the first metal shielding member 60, thereby achieving the purpose of reducing the signal interference generated by the socket connector itself; The plug connector in the insertion hole 104 is snapped elastically, instead of the existing method of snapping the plug connector with the elastic tabs on both sides of the metal shell 10, and there is no need to set up elastic tabs on the side of the shell. Opening, so as to achieve the purpose of reducing external electromagnetic interference. The socket connector has better anti-interference performance.

In the present utility model, the insulator in the metal shell 10 can adopt an integrated structure, or can adopt a split structure, that is, it includes an upper insulator 20 and a lower insulator 40 that are engaged with each other, and a plurality of upper terminals 30 are embedded in the upper insulator side by side. 20 , a plurality of lower terminals 50 are embedded side by side in the lower insulator 40 .

Specifically, the first metal shield 60 includes a shield body 61 and two elastic pieces 62 , wherein the two elastic pieces 62 can be respectively connected to two ends of the shield body 61 , and can also be integrally formed with the shield body 61 . Taking two elastic pieces 62 integrally formed with the shielding body 61 as an example, the two elastic pieces 62 are respectively bent and extended forward from the left and right ends of the shielding body 61; wherein, the shielding body 61 engages with the tongue plate 201 in a direction perpendicular to each terminal. Connect; the two elastic pieces 62 are elastically clamped between the outer surface of the tongue plate 201 and the shell of the plug connector.

In order to realize the stable engagement between the shielding body 61 and the tongue plate 201, a plurality of first locking grooves 611 are spaced apart on the bottom surface of the shielding body 61; 611 matches the first block 21, and each first block 21 snaps into the corresponding first slot 611; the top of the shielding body 61 is bent 90° toward one side and extends with a connecting portion 612, the connecting portion 612 A positioning hole 613 is formed on the top surface, and a positioning post 22 matching the positioning hole 613 is correspondingly provided on the top surface of the tongue plate 201 , and the positioning post 22 penetrates into the corresponding positioning hole 613 . In this way, through the mutual cooperation of the first clamping blocks 21 and the upper insulator 20, the positioning of the positioning column 22 to the first metal shield 60, and the elasticity of the first metal shield 60 itself, the three aspects are realized. A firm connection between the first metal shield 60 and the tongue plate 201 of the upper insulator 20 .

Wherein, the two elastic pieces 62 each include an elastic arm 621 elastically engaged with the side surface of the tongue plate 201 and a pressing portion disposed on the end of the elastic arm 621 away from the shielding body 61 and bent toward the inner side of the metal shell 10 . 622, wherein, the elastic arm 621 tends to be coplanar with the outer surface of the tongue plate 201; on the housing of the plug connector. Through the elastic engagement between the two elastic arms 621 and the tongue plate 201 , the connection between the first metal shield 60 and the tongue plate 201 is more firm. The pressing portion 622 elastically abuts against the shell of the plug connector, thereby realizing a firm connection between the plug connector and the receptacle connector.

In order to facilitate the insertion of the plug connector and the socket connector, avoidance grooves 23 are provided on both sides of the tongue plate 201, and the two elastic pieces 62 are respectively arranged in the corresponding avoidance grooves 23, and the pressing part 622 protrudes from the avoidance grooves. twenty three. The top surface of the upper insulator 20 is provided with two positioning blocks 24, and the metal shell 10 is provided with two positioning slots 12 corresponding to the two positioning blocks 24, and the two positioning blocks 24 are respectively snapped into the corresponding two positioning blocks. The positioning slots 12 are conducive to the accurate installation of the upper insulator 20 in the metal shell 10, and can effectively prevent the separation between the upper insulator 20 and the metal shell 10 of the socket connector during use.

In order to further improve the anti-interference performance of the receptacle connector, a second metal shield 70 is arranged in the metal shell 10, and the bottom surface of the lower insulator 40 is provided with a locking groove 41 along the direction perpendicular to each lower terminal 50. The second metal shield The piece 70 is locked in the locking groove 41 . Further, the top surface of the second metal shield 70 is provided with a plurality of second locking blocks 71 at intervals, and a plurality of second locking slots 42 corresponding to each second locking block 71 are opened in the locking groove 41, and each second The clamping block 71 is interference-fitted with the corresponding second clamping slot 42 , so as to ensure a stable connection between the second metal shield 70 and the lower insulator 40 .

In order to improve the safety of the receptacle connector, the first metal shield 60 and the second metal shield 70 can be welded and connected to the metal shell 10. The position of the welding point 13 on the metal shell 10 is shown in Figure 1 and Figure 1. 3; the metal shell 10 is provided with a welding piece 11 extending downward, and the two welding pieces 11 are welded and connected to the PCB board, so that the first metal shield 60, the second metal shield 70 and the metal shell 10 are all grounded.

In the receptacle connector, each upper terminal 30 includes an upper terminal body 31 embedded in the upper insulator 20, an upper terminal welding foot 32 disposed on one end of the upper terminal body 31 and exposing at least part of the bottom surface, and an upper terminal body 32 disposed on the upper terminal body. The other end of 31 is bent and extended out of the upper terminal DIP pin 33 of the upper insulator 20; the side of the upper terminal body 31 protrudes outwards with a ratchet 311, and/or the side of the upper terminal body 31 is recessed inwards with a groove 312 , so as to improve the firmness of the connection between each upper terminal 30 and the upper insulator 20 . Similarly, ratchets 311 and/or grooves 312 may also be provided on the parts of the lower terminals 50 embedded in the lower insulator 40 to improve the firmness of the connection between the lower terminals 50 and the lower insulator 40 . In addition, the specific structure of the upper insulator 20 , the lower insulator 40 , the upper terminal 30 and the lower terminal 50 and the connection relationship between them have been disclosed in the patent application number 201721420561.2, and will not be described in detail here.

In this receptacle connector, the top surface and bottom surface of the metal shell 10 are respectively provided with elastic tabs 14 for pressing the upper insulator 20 and the lower insulator 40, and the connecting part 612 of the first metal shield 60 can be correspondingly provided with for The first escape groove 614 for avoiding the elastic tab 14 and the second avoidance groove 72 for avoiding the elastic tab 14 may be correspondingly formed on the second metal shield 70 . In this way, the stable connection among the metal shell 10 , the first metal shield 60 , the upper insulator 20 and the lower insulator 40 can be improved.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (8)

1. a kind of socket connector, including metal shell（10）, be set to the metal shell（10）It interior insulator and is embedded In multiple terminals in the insulator；The metal shell（10）Including roof（101）, bottom wall（102）, two side walls （103）And by the roof（101）, the bottom wall（102）With two side walls（103）Between surround for plug connect The spliced eye that device is inserted into（104）, the insulator, which is equipped with, is located at the spliced eye（104）Interior hyoplastron（201）, each terminal It is arranged in the hyoplastron（201）On；It is characterized in that, the socket connector further includes being set to the metal shell（10） The first interior metal screen（60）, first metal screen（60）Between the front and back end of each terminal, and with The insulator clamping；First metal screen（60）Equipped with positioned at the spliced eye（104）Two interior shrapnels（62）, Two shrapnels（62）It is located at the hyoplastron（201）The spliced eye is inserted into the left and right sides to be flexibly supported on （104）The interior pin connector.

2. a kind of socket connector according to claim 1, which is characterized in that first metal screen（60）Packet It includes：

Shield ontology（61）, the shielding ontology（61）It is clamped along perpendicular to the direction of each terminal and the insulator, two A shrapnel（62）Respectively from the shielding ontology（61）Left and right ends forward folds extend, two shrapnels（62） Flexible clamping is in the hyoplastron（201）Lateral surface.

3. a kind of socket connector according to claim 2, which is characterized in that two shrapnels（62）Include：

With the hyoplastron（201）Side elastic clamping elastic arm（621）, the elastic arm（621）With the hyoplastron（201） Lateral surface tend to be coplanar；And

It is set to the elastic arm（621）Far from the shielding ontology（61）One end and towards the side wall（103）Side To the pressure section of bending protrusion（622）, the pressure section（622）With the side wall（103）It is to be spaced apart；The pin connector It is inserted in the spliced eye（104）When, the pressure section（622）It is pressed on the shell of the pin connector.

4. a kind of socket connector according to claim 3, which is characterized in that the hyoplastron（201）Two sides open Equipped with escape groove（23）, two shrapnels（62）It is located at two escape groove（23）It is interior, and the pressure section（622） Protrude from the escape groove（23）.

5. a kind of socket connector according to claim 2, which is characterized in that the shielding ontology（61）Bottom surface interval Offer multiple first card slots（611）；The top surface of the insulator is convexly equipped with multiple first fixture blocks（21）, each first fixture block （21）It is caught in corresponding first card slot（611）It is interior；The shielding ontology（61）Top towards 90 ° of one side bending and prolong Stretching has interconnecting piece（612）, the interconnecting piece（612）Top surface offer location hole（613）, the hyoplastron（201）Top surface pair Positioning column should be provided with（22）, the positioning column（22）Penetrate the corresponding location hole（613）It is interior.

6. a kind of socket connector according to claim 1, which is characterized in that the socket connector further includes being set to The metal shell（10）The second interior metal screen（70）；The insulator includes the upper insulator being mutually connected together （20）With lower insulator（40）, first metal screen（60）It is connected in the upper insulator（20）On；The lower insulation Body（40）Bottom surface along perpendicular to the direction of each terminal offering clamping groove（41）, second metal screen（70）Card In the clamping groove（41）It is interior.

7. a kind of socket connector according to claim 6, which is characterized in that second metal screen（70）Top Face interval is provided with multiple second fixture blocks（71）, the clamping groove（41）Inside offer multiple second card slots（42）, each described Two fixture blocks（71）With corresponding second card slot（42）Interference fit.

8. a kind of socket connector described according to claim 6 or 7, which is characterized in that first metal screen（60） And second metal screen（70）With the metal shell（10）It is welded to connect；The metal shell（10）Equipped with downward The welding piece of extension（11）To be welded in pcb board.