CN214505831U

CN214505831U - Electrical connector

Info

Publication number: CN214505831U
Application number: CN202023118616.9U
Authority: CN
Inventors: 冯晓
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-10-26
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses an electric connector, which comprises an insulating body, a plurality of pairs of first differential signal terminals and a plurality of first grounding terminals which are arranged at intervals along the transverse direction, wherein the first differential signal terminals are formed by stamping and bending metal plates, the first grounding terminals are formed by blanking the metal plates, a shielding shell surrounds the periphery of a corresponding pair of first differential signal terminals to form a three-dimensional shielding space, the first grounding terminals and the first differential signal terminals adopt different forming modes, so that the space occupied by the first grounding terminals along the transverse direction is smaller, at the same time of not changing the arrangement distance of two adjacent pairs of first differential signal terminals, at least part of the shielding shell and the first grounding terminals are contained in a space between two adjacent pairs of first differential signal terminals, the shielding shell carries out four-side shielding on the signal interference between two adjacent pairs of first differential signal terminals, and the first grounding terminal is transversely extended to form a protruding part to be contacted with the shielding shell, so that high-frequency signals can be transmitted.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector for transmitting high frequency signals.

[ background of the invention ]

The existing electric connector comprises an insulating body, a plurality of pairs of signal terminals and a plurality of ground terminals which are accommodated in the insulating body, wherein the plurality of pairs of signal terminals and the plurality of ground terminals are alternately arranged along the left and right direction, the signal terminals and the ground terminals are formed by stamping and bending the same metal plate, the plate thickness direction of the signal terminals and the plate thickness direction of the ground terminals are both in the up and down direction, signal interference is easily generated between two adjacent pairs of signal terminals, the signal transmission effect of the electric connector is poor, high-frequency transmission is not facilitated, although the ground terminals can isolate the signal interference of the two adjacent pairs of signal terminals on the left and right sides, the shielding area of the ground terminals is limited, and the signal interference of the two adjacent pairs of signal terminals in the up and down direction cannot be isolated, therefore, a shielding shell is arranged at the periphery of each pair of signal terminals, and the arrangement can realize the isolation of the signal terminals from the signal interference around, however, the shielding shell occupies the space originally used for setting the grounding terminal, so that the grounding terminal cannot be arranged between two adjacent pairs of signal terminals, the grounding effect is poor due to the lack of the grounding terminal, and if the shielding shell needs to be grounded, the structure of the shielding shell is complex, so that the manufacturing difficulty and the manufacturing cost are increased, and the assembly is difficult.

Therefore, there is a need for an electrical connector that overcomes the above problems.

[ Utility model ] content

The utility model discloses an creation purpose is providing a shielding case around in order to form three-dimensional shielding space in the periphery of a pair of first differential signal terminal, first ground terminal is by sheet metal unloading shaping, when not changing the distance of arranging of adjacent two pairs of first differential signal terminals, make first ground terminal and shielding case accept in insulator simultaneously, can carry out the four sides shielding to the signal interference between the adjacent two pairs of first differential signal terminals, and first ground terminal has bulge and shielding case contact along horizontal extension, ground connection is effectual, be favorable to transmitting high frequency signal's electric connector.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrical connector, comprising: an insulating body; a plurality of pairs of first differential signal terminals and a plurality of first ground terminals, each of the first differential signal terminals being formed by stamping and bending a metal plate, each of the first differential signal terminals including a first main body portion received in the insulator, a first contact portion extending forward from the first main body portion, and a first tail portion extending backward from the first main body portion to the insulator, the first main body portion having a plate thickness direction in an up-down direction perpendicular to the transverse direction and the front-rear direction, each of the first ground terminals being formed by blanking the metal plate, each of the first ground terminals including a second main body portion received in the insulator, a second contact portion extending forward from the second main body portion, and a second tail portion connected to a rear end of the second main body portion and located outside the insulator, the plate thickness direction of the second main body parts is a transverse direction, each second main body part extends along the transverse direction to form at least one protruding part, and the protruding parts are positioned in the insulating body; the shielding shells are fixed on the insulating body and are arranged at intervals in the transverse direction, the shielding shells and the first differential signal terminals are arranged in a one-to-one correspondence mode, each shielding shell surrounds a corresponding pair of the peripheries of the first differential signal terminals to form a three-dimensional shielding space, and each protruding portion is adjacent to the corresponding side wall of the shielding shell and contacts with the corresponding side wall of the shielding shell in the transverse direction.

Further, the insulation body is provided with a base part and a butt-joint part extending forwards from the base part, the butt joint part is concavely provided with a slot backwards, the two sides of the slot along the vertical direction are provided with a first side wall and a second side wall which are oppositely arranged, the first side wall is positioned above the second side wall, the first side wall or the second side wall is provided with a protruding part, the protruding portion extends in a protruding manner in a direction away from the insertion slot, the first side wall is provided with a plurality of first receiving grooves and a plurality of second receiving grooves which are arranged at intervals in a transverse direction, each shielding shell is received in each corresponding first receiving groove, each first grounding terminal is received in each corresponding second receiving groove, the second accommodating groove is communicated with the corresponding adjacent first accommodating groove, and at least part of the protruding part is positioned in the first accommodating groove.

Furthermore, the second side wall accommodates a plurality of pairs of second differential signal terminals and a plurality of second ground terminals arranged at intervals in the transverse direction, the second side wall accommodates a ground member, the ground member covers the plurality of pairs of second differential signal terminals and the plurality of second ground terminals in the vertical direction, the ground member extends forwards with a plurality of first elastic arms and extends backwards with a plurality of second elastic arms, the plurality of first elastic arms protrude into the slot, when a mating plug is inserted into the slot, the plurality of first elastic arms contact with a ground portion of the mating plug, the plurality of second elastic arms and the plurality of second ground terminals are arranged in a one-to-one correspondence manner, and each second elastic arm abuts against each corresponding second ground terminal.

Furthermore, the first accommodating groove penetrates upwards through the top surface of the first side wall, the top wall of the shielding shell is at least partially exposed outside the insulating body, a shielding cover is arranged on the first side wall and at least partially exposed on the top surface of the insulating body, and the shielding cover is positioned above the shielding shells and is in contact with the top walls of the shielding shells.

Further, the top surface of first lateral wall is the recess of being equipped with of undercut, the recess extend along transverse direction and with a plurality of first accepting groove is linked together, the top surface of shielding shell is higher than or the parallel and level the bottom surface of recess, it is located to shield the lid in the recess, it is fixed with a plurality of to shield the roof of shell through spot welding.

Further, the second main body portion is fixed in insulator just is located two along the transverse direction between the shield shell, the second main body portion has two along the transverse direction tear the bulge, two the bulge extends towards opposite direction each other, and sets up along upper and lower direction interval, is located two of the transverse both sides of second main body portion the shield shell respectively with two the bulge butt.

Further, the length of the top wall of the shielding shell in the front-back direction is greater than the length of the bottom wall of the shielding shell in the front-back direction, each shielding shell surrounds the first main body portion of the corresponding pair of the first differential signal terminals, the first contact portion extends downward from the front end of the first main body portion and protrudes out of the shielding shell, and the first contact portion is located in front of the bottom wall of the shielding shell.

Further, the first ground terminal is located outside the shielding shell, the length of the second main body portion in the front-back direction is smaller than that of the top wall of the shielding shell, the width of the second main body portion in the up-down direction is larger than that of the side wall of the shielding shell, and the protruding portion is abutted to the side wall of the shielding shell.

Furthermore, the first tail part is bent backwards and upwards to extend from the first main body part, the second tail part is formed by upward protruding from the top of the rear end of the second main body part, the plate surface of the second tail part is perpendicular to the plate surface of the first tail part, and the rear end surface of the first tail part and the rear end surface of the second tail part are located on the same plane.

Further, a stopping part is convexly arranged at the top of the second main body part upwards, the stopping part is positioned in front of the second tail part and is arranged at an interval with the second tail part, and the stopping part is stopped at the rear end face of the insulating body.

Furthermore, the shielding shell is provided with a bending piece located outside the insulating body, the bending piece comprises a bending part bent upwards from the rear end face of the shielding shell and a limiting part extending forwards from the bending part, and the limiting part is stopped on the upper surface of the insulating body.

Furthermore, the two first main body parts of each pair of the first differential signal terminals are embedded in an insulating block together, the insulating block is accommodated in the insulating body, the shielding shell is sleeved on the insulating block from front to back, two sides of the rear end of the insulating block are respectively provided with a convex block in an upward protruding manner, two sides of the rear end of the shielding shell are respectively provided with a notch for accommodating the convex block in a concave manner, and the convex block is blocked on the front wall surface of the notch.

Compared with the prior art, the utility model discloses following beneficial effect has:

each of the first differential signal terminals is formed by stamping and bending a metal plate, each of the first differential signal terminals comprises the first main body part accommodated in the insulating body, the thickness direction of the first main body part is the vertical direction, each of the first ground terminals is formed by blanking the metal plate, each of the first ground terminals comprises the second main body part accommodated in the insulating body, the plate thickness direction of the second main body part is the horizontal direction, the first ground terminals and the first differential signal terminals adopt different forming modes, so that the space occupied by the first ground terminals in the horizontal direction is small, enough space is provided for the arrangement of the shielding shell, and at least part of the shielding shell and the first ground terminals are accommodated simultaneously in the space between two adjacent pairs of the first differential signal terminals while the arrangement distance between the two adjacent pairs of the first differential signal terminals is not changed, can reach the shielding case is to adjacent two pairs signal interference between the first differential signal terminal carries out the effect that the four sides was shielded, and the bulge with the lateral wall of shielding case contacts, can guarantee again the shielding case with the contact of first ground terminal is inseparabler, guarantees that ground connection is good, is favorable to transmitting high frequency signal.

[ description of the drawings ]

Fig. 1 is a partial exploded perspective view of an electrical connector according to a first embodiment of the present invention;

FIG. 2 is a perspective view of the shielding cover not assembled to the insulating body;

FIG. 3 is a schematic view of the mating of the first ground terminal and the terminal assembly;

FIG. 4 is an exploded perspective view of FIG. 3;

FIG. 5 is a partial exploded perspective view of another perspective of the electrical connector;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is a rear view of the electrical connector;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is a cross-sectional view taken along line C-C of FIG. 7;

fig. 10 is a schematic structural view of a first ground terminal of the second embodiment;

fig. 11 is a schematic view showing the first ground terminal of the second embodiment mated with two shield shells.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

Referring to fig. 1 to 9, which are the first embodiment of the present invention, the electrical connector 100 of the present invention is an SAS socket for interfacing with a mating plug (not shown) and electrically connecting to a circuit board (not shown), in this embodiment, the mating plug is an SAS plug, in other embodiments, the electrical connector 100 can be a card edge connector or a socket of other interface for matching with an electronic card or a matable plug, and the electrical connector 100 includes an insulating body 1, a plurality of pairs of first differential signal terminals 21, a plurality of first ground terminals 22, a plurality of pairs of second differential signal terminals 23, and a plurality of second ground terminals 24, which are accommodated in the insulating body 1.

Referring to fig. 1, 5 and 6, the insulative housing 1 extends along a transverse direction and is elongated, the insulative housing 1 includes a base 11, a docking portion 12 extending forward from the base 11, two guiding posts 13 extending forward from two ends of the base 11, a slot 121 is recessed backward from a front end of the docking portion 12 for the insertion of the SAS plug, a first sidewall 122 and a second sidewall 123 are disposed opposite to each other on two sides of the slot 121 along a vertical direction, the first sidewall 122 is located above the second sidewall 123, the first sidewall 122 has a plurality of first receiving slots 1221 and a plurality of second receiving slots 1222 spaced apart from each other along the transverse direction, the plurality of first receiving slots 1221 and the plurality of second receiving slots 1222 are recessed forward from a rear end of the base 11 and extend to the first sidewall 122, and a first portion 1231, a second portion 1222 spaced apart from each other along the transverse direction are disposed on the second sidewall 123, A second portion 1232 and a protrusion 1233 between the first portion 1231 and the second portion 1232, the length of the first portion 1231 in the transverse direction is smaller than the length of the second portion 1232 in the transverse direction, the protrusion 1233 protrudes from the second sidewall 123 in a direction away from the insertion slot 121, and the second portion 1232 and the protrusion 1233 are also provided with terminals (not numbered).

Referring to fig. 4, 5 and 8, a plurality of pairs of the first differential signal terminals 21 and a plurality of the first ground terminals 22 are arranged on the first sidewall 122 at intervals along the transverse direction, the first ground terminals 22 are disposed on both sides of each pair of the first differential signal terminals 21, each of the first differential signal terminals 21 includes a first main body portion 211 received in the insulating body 1, a first contact portion 212 extending forward from the first main body portion 211, the first contact portion 212 protrudes downward into the slot 121, a first tail portion 213 extending backward from the first main body portion 211 to the insulating body 1, each of the first differential signal terminals 21 is formed by stamping and bending a metal plate, the thickness direction of the first contact portion 212 and the thickness direction of the first main body portion 211 are both vertical directions, and the thickness direction of the first tail portion 213 is a front-back direction, the first tail portion 213 extends rearward and upward from the first body portion 211.

Referring to fig. 4, 5 and 9, each of the first ground terminals 22 includes a second main body portion 221 fixed to the insulating body 1, a second contact portion 222 extending forward from the second main body portion 221, and a second tail portion 223 connected to a rear end of the second main body portion 221, the second contact portion 222 protrudes downward into the insertion slot 121, the second tail portion 223 is located outside the insulating body 1, a thickness direction of the second contact portion 222, a thickness direction of the second main body portion 221, and a thickness direction of the second tail portion 223 are both horizontal directions, the second tail portion 223 is formed by protruding upward from a top of the rear end of the second main body portion 221, the second tail portion 223 has high strength and occupies a small space, a plate surface of the second tail portion 223 is perpendicular to a plate surface of the first tail portion 213, a rear end surface of the first tail portion 213 and a rear end surface of the second tail portion 223 are located on the same plane, so that the first and

second tail portions

213 and 223 are soldered to the same surface of the circuit board.

Referring to fig. 4 and 6, a stop portion 2211 is protruded upward from the top of the second body portion 221, the stop portion 2211 is positioned in front of the second tail portion 223 and spaced apart from the second tail portion 223, the stop portion 2211 is stopped at the rear of the rear end surface of the insulating body 1, so as to prevent the first ground terminal 22 from being excessively inserted forward into the second receiving slot 1222 during the assembly process, the stop portion 2211 is spaced apart from the second tail portion 223, and a gap between the second tail portion 223 and the stop portion 2211 is beneficial for tin climbing, so that tin covers the surface of the second tail portion 223, and the soldering effect is good.

Referring to fig. 2, 7 and 8, a plurality of shielding cases 3 are fixed to the insulating body 1, the plurality of shielding cases 3 are arranged at intervals in the transverse direction and are arranged in one-to-one correspondence with the plurality of pairs of first differential signal terminals 21, each shielding case 3 surrounds the periphery of a corresponding pair of first differential signal terminals 21 to form a three-dimensional shielding space, each second main body portion 221 extends along the transverse direction to form at least one protruding portion 2212, the protruding portion 2212 is located in the insulating body 1, each protruding portion 2212 is in contact with the side wall of a corresponding adjacent shielding case 3 along the transverse direction, compared with the conventional method in which the first ground terminal 22 is formed by stamping and bending a metal plate, each first ground terminal 22 is formed by blanking the metal plate, the thickness direction of the second main body portion 221 is the transverse direction, and the first ground terminal 22 and the first differential signal terminals 21 are formed in different manners, make first ground terminal 22 is less along the space that transverse direction occupy, for shielding shell 3's setting provides sufficient space, does not change adjacent two pairs when the distance of arranging of first differential signal terminal 21, makes to hold simultaneously in the space between adjacent two pairs of first differential signal terminals 21 shielding shell 3 at least part with first ground terminal 22, shielding shell 3 is adjacent two pairs signal interference between the first differential signal terminal 21 carries out the effect of shielding on four sides, and bulge 2212 with shielding shell 3's lateral wall contacts, guarantees shielding shell 3 with first ground terminal 22 contacts inseparabler, guarantees that ground connection is good, is favorable to transmitting high frequency signal.

Referring to fig. 3, 4 and 8, the first main body portion 211 of each pair of the first differential signal terminals 21 is embedded in an insulating block 4, the insulating block 4 is accommodated in the first side wall 122, the shielding shell 3 is sleeved on the insulating block 4 from front to back, a spring plate 31 extends from the top wall of the shielding shell 3 toward the insulating block 4, a slot 41 is formed in the insulating block 4 and is fastened to the spring plate 31, a protruding block 42 is respectively formed in each of two sides of the rear end of the insulating block 4 in an upward protruding manner, notches 32 are respectively formed in each of two sides of the rear end of the shielding shell 3 and are used for accommodating the protruding block 42, and the protruding blocks 42 are stopped on the front wall surface of the notches 32 to fix the shielding shell 3 and the insulating block 4. One terminal assembly is composed of one insulating block 4, a pair of the first differential signal terminals 21 embedded in the same insulating block 4, and one shield shell 3 surrounding the corresponding pair of the first differential signal terminals 21 and the corresponding insulating block 4.

Referring to fig. 5 and 6, the plurality of shielding cases 3 are disposed in a one-to-one correspondence with the plurality of first receiving slots 1221, each shielding case 3 is received in the corresponding first receiving slot 1221, the plurality of first grounding terminals 22 are disposed in a one-to-one correspondence with the plurality of second receiving slots 1222, the first grounding terminal 22 is received in each corresponding second receiving slot 1222, the second receiving slot 1222 is communicated with the corresponding adjacent first receiving slot 1221, in this embodiment, one protruding portion 2212 is torn along the transverse direction of the second main body portion 221, and at least a portion of the protruding portion 2212 is located in the corresponding adjacent first receiving slot 1221 to abut against the side wall of the corresponding adjacent shielding case 3.

Referring to fig. 1 and 3, the first ground terminal 22 is located outside the shielding shell 3, so that the first ground terminal 22 is conveniently assembled to the insulating body 1, the length of the second main body portion 221 along the front-back direction is smaller than the length of the top wall of the shielding shell 3, the width of the second main body portion 221 along the up-down direction is greater than the width of the side wall of the shielding shell 3 along the up-down direction, the second main body portion 221 is sheet-shaped, and the area of the plate surface of the second main body portion 221 along the up-down direction is large, so that the protruding portion 2212 is conveniently torn from the second main body portion 221.

Referring to fig. 3 and 8, a length of a top wall of the shielding shell 3 in the front-back direction is greater than a length of a bottom wall of the shielding shell 3 in the front-back direction, each shielding shell 3 surrounds the first main body portion 211 of the corresponding pair of first differential signal terminals 21, the first contact portion 212 extends downward from a front end of the first main body portion 211 and protrudes outside the shielding shell 3, the first contact portion 212 is located in front of the bottom wall of the shielding shell 3, and the length of the bottom wall of the shielding shell 3 is shorter than the length of the top wall of the shielding shell 3, so as to offset the first contact portion 212. The first accommodating groove 1221 includes a first groove (not numbered) and a second groove (not numbered) of upper and lower communicating grooves, the first groove is located above the second groove, the front wall surface of the first groove is located in front of the front wall surface of the second groove, the front end surface of the top wall of the shielding shell 3 is stopped at the rear of the front wall surface of the first groove, and the front wall surface of the bottom wall of the shielding shell 3 is stopped at the rear of the front wall surface of the second groove.

Referring to fig. 2 and 8, each of the first receiving grooves 1221 upwardly penetrates the top surface of the first sidewall 122, the top wall of the shielding shell 3 is at least partially exposed out of the insulating body 1, a shielding cover 5 is disposed on the first side wall 122 and at least partially exposed out of the top surface of the insulating body 1, the shield cover 5 is positioned above the plurality of shield cases 3 and contacts top walls of the plurality of shield cases 3, the shielding covers 5 are used for connecting the shielding shells 3 in series, so that the shielding effect is improved, the shielding covers 5 are exposed on the top surface of the insulating body 1, the assembly of the shielding covers 5 is convenient, the difficulty in manufacturing the insulating body 1 is reduced, in other embodiments, the two sides of the shielding cover 5 are respectively bent downward to form arm portions contacting with the shielding member covering the second sidewall 123, so as to improve the shielding effect.

Referring to fig. 2 and 8, a groove 1223 is recessed downward from a top surface of the first side wall 122, the groove 1223 extends in a transverse direction and is communicated with the plurality of first receiving grooves 1221, a top surface of the shielding shell 3 is flush with a bottom surface of the groove 1223, the shielding cover 5 is located in the groove 1223, and the shielding cover 5 is fixed to top walls of the plurality of shielding shells 3 by spot welding, so that the shielding cover 5 is stably contacted with the plurality of shielding shells 3, the plurality of shielding shells 3 are ensured to be communicated with each other, and the shielding effect is improved. In other embodiments, the top surface of the shielding shell 3 is higher than the bottom surface of the groove 1223, or the first sidewall 122 is not recessed downward, and the top surface of the shielding shell 3 is higher than the top surface of the first sidewall 122.

Referring to fig. 2 and 8, the shielding shell 3 has a bending piece 33 located outside the insulating body 1, the bending piece 33 includes a bending portion 331 bending upward from the rear end surface of the shielding shell 3 and a limiting portion 332 extending forward from the bending portion 331, the limiting portion 332 is stopped on the upper surface of the insulating body 1, the shielding shell 3 is located on the insulating body 1 along the vertical direction, the shielding shell 3 is firmly fixed to the insulating body 1 and is not easy to displace, in this embodiment, the limiting portion 332 is horizontally disposed.

Referring to fig. 1, 7 and 9, a plurality of pairs of the second differential signal terminals 23 and a plurality of the second ground terminals 24 are arranged at intervals on the second sidewall 123 along the transverse direction, in this embodiment, the plurality of pairs of the second differential signal terminals 23 and the plurality of the second ground terminals 24 are accommodated in the first portion 1231, each of the second differential signal terminals 23 and the second ground terminals 24 includes a fixing portion 241 accommodated in the insulating body 1, a guiding portion 242 extending forward from the fixing portion 241 and exposed to the slot 121, a welding portion 243 extending backward from the fixing portion 241, a plurality of pairs of the fixing portions 241 of the second differential signal terminals 23 and the plurality of the second ground terminals 24 are embedded in an insulating member 6, the insulating member 6 is mounted and fixed on the first portion 1231, the first portion 1231 accommodates a ground member 7, the grounding piece 7 is fixed on the insulating piece 6 and is located above the fixing portion 241, the grounding piece 7 extends to form a clamping arm 71 and is clamped with the concave portion 61 formed by the downward concave of the top surface of the insulating piece 6, and therefore the grounding piece 7 is fixed on the insulating piece 6.

Referring to fig. 1 and 9, the grounding member 7 has a plurality of first elastic arms 72 extending forward and a plurality of second elastic arms 73 extending backward, the plurality of first elastic arms 72 and the plurality of second elastic arms 73 respectively correspond to the plurality of second grounding terminals 24 one by one, each of the second elastic arms 73 abuts against the fixing portion 241 corresponding to each of the second grounding terminals 24, at least a portion of the fixing portion 241 of the second grounding terminal 24 is exposed on the top surface of the insulating member 6 to abut against the corresponding second elastic arm 73, the plurality of first elastic arms 72 protrude upward into the insertion slot 121, when the SAS plug is inserted into the insertion slot 121, the plurality of first elastic arms 72 contact with the grounding portion of the SAS plug, the guiding portion 242 of each of the second grounding terminals 24 and the corresponding first elastic arms 72 contact the grounding portion of the same grounding terminal of the SAS plug, the SAS plug contacts the mating portion 12 first and then contacts the first elastic arm 72, so that the SAS plug does not need to be provided with an additional grounding member 7, the overall grounding effect of the electrical connector 100 and the SAS plug can be improved, and transmission of high-frequency signals is ensured. In other embodiments, the first portion 1231 also accommodates a plurality of shielding cases corresponding to the plurality of pairs of the second differential signal terminals 23, each of the shielding cases surrounds the periphery of a corresponding pair of the second differential signal terminals 23, each of the second ground terminals 24 is formed by blanking a metal plate, and the second ground terminal 24 is provided with a protrusion in the transverse direction to contact with the corresponding shielding case.

Referring to fig. 10 and 11, a connector according to a second embodiment of the present invention is different from the connector according to the first embodiment only in that: the second main body 221 has torn two along the transverse direction protrusion 2212, the second main body 221 is located two along the transverse direction between the shielding shells 3, two protrusion 2212 extends towards the opposite direction each other, and sets up along the upper and lower direction interval, is located two of the transverse both sides of second main body 221 shielding shells 3 respectively with two protrusion 2212 looks butt, and first ground terminal 22 shielding shell 3 first ground terminal 22 is located two of second main body 221 both sides shielding shell respectively with same two of first ground terminal 22 protrusion 2212 contacts, makes adjacent two switch on each other between the shielding shells 3, and is through a plurality of first ground terminal 22 will be a plurality of shielding shells 3 are established ties together, improve shielding effect. Other structures and connection relationships of the second embodiment are the same as those of the first embodiment.

1. each of the first differential signal terminals 21 is formed by stamping and bending a metal plate, the thickness direction of the first main body portion 211 of each of the first differential signal terminals 21 is a vertical direction, each of the first ground terminals 22 is formed by blanking a metal plate, the plate thickness direction of the second main body portion 221 of each of the first ground terminals 22 is a horizontal direction, each of the second main body portions 221 extends in the horizontal direction to form the protruding portion 2212, the protruding portion 2212 is located in the insulating body 1, a plurality of shielding cases 3 are fixed to the insulating body 1 and arranged at intervals in the horizontal direction, each of the shielding cases 3 surrounds the periphery of a corresponding pair of the first differential signal terminals 21 to form a three-dimensional shielding space, each of the protruding portions 2212 is in contact with the side wall of the corresponding adjacent shielding case 3 in the horizontal direction, and compared with the conventional first ground terminal 22 formed by stamping and bending a metal plate, the first ground terminal 22 is formed by blanking a metal plate, the first ground terminal 22 and the first differential signal terminal 21 adopt different forming modes, so that the second main body 221 occupies two adjacent pairs of the first differential signal terminal 21 along the transverse direction, the space between the two adjacent pairs of the first differential signal terminal 21 is smaller, the arrangement distance between the two adjacent pairs of the first differential signal terminal 21 is not changed, the space between the two adjacent pairs of the first differential signal terminal 21 is simultaneously contained in at least part of the shielding case 3 and the first ground terminal 22, the effect of four-side shielding of signal interference between the two adjacent pairs of the first differential signal terminal 21 by the shielding case 3 can be achieved, the protrusion 2212 is in contact with the side wall of the shielding case 3, and the shielding case 3 is ensured to be tightly contacted with the first ground terminal 22, so that good grounding is ensured, it is advantageous to transmit high frequency signals.

2. The second main body 221 is located two along the transverse direction between the shielding shells 3, the second main body 221 has two along the transverse direction tear the protrusion 2212, two the protrusion 2212 extends towards the opposite direction each other, and sets up along the upper and lower direction interval, is located two of the transverse both sides of second main body 221 the shielding shells 3 respectively with same two of first ground terminal 22 protrusion 2212 looks butt makes adjacent two switch on each other between the shielding shells 3, and is through a plurality of first ground terminal 22 is with a plurality of shielding shells 3 establish ties together, improves shielding effect.

3. First ground terminal 22 is located outside shield shell 3, it will be convenient first ground terminal 22 assemble extremely insulator 1, second main part 221 is greater than along the width of upper and lower direction the lateral wall of shield shell 3 is along the width of upper and lower direction, second main part 221 is the slice, the area of second main part 221 along the face of upper and lower direction is big, is convenient for follow second main part 221 tears out two that set up along upper and lower direction interval bulge 2212 is with two the lateral wall of shield shell 3 contacts.

4. The first sidewall 122 is provided with the first receiving groove 1221 for receiving the shielding shell 3, the first receiving groove 1221 upwardly penetrates through the top surface of the first sidewall 122, the top wall of the shielding shell 3 is exposed outside the insulating body 1, the shielding cover 5 is provided on the first sidewall 122 and exposed on the top surface of the insulating body 1, the shielding cover 5 is located above the shielding shells 3 and contacts with the top walls of the shielding shells 3, the shielding shells 3 are connected in series through the shielding cover 5, so that the shielding effect is improved, the shielding cover 5 is exposed on the top surface of the insulating body 1, the shielding cover 5 is convenient to assemble, the difficulty in manufacturing the insulating body 1 is reduced, meanwhile, too much space inside the insulating body 1 is not occupied, and the volume of the insulating body 1 is not increased.

5. The top surface of first lateral wall 122 is equipped with of coving downwards recess 1223, recess 1223 extends and is with a plurality of along transverse direction first accepting groove 1221 is linked together, the top surface of shielding shell 3 is higher than or the parallel and level the bottom surface of recess 1223, it is located to shield lid 5 in recess 1223, it is fixed through spot welding to shield lid 5 and a plurality of the roof of shielding shell 3 is fixed, guarantees shield lid 5 and a plurality of shielding shell 3 contact is stable, ensures a plurality of switch on each other between the shielding shell 3, improves shielding effect.

6. The shielding shell 3 has the bending piece 33 located outside the insulating body 1, the bending piece 33 includes a bending portion 331 bending upward from the rear end surface of the shielding shell 3 and a limiting portion 332 extending forward from the bending portion 331, the limiting portion 332 contacts with the surface of the insulating body 1, and the shielding shell 3 is positioned on the insulating body 1 along the vertical direction, so that the shielding shell 3 is stably fixed to the insulating body 1 and is not easy to displace.

7. The grounding member 7 has a plurality of first elastic arms 72 extending forward and a plurality of second elastic arms 73 extending backward, the plurality of first elastic arms 72 and the plurality of second elastic arms 73 respectively correspond to the plurality of second grounding terminals 24 one by one, each second elastic arm 73 abuts against each corresponding second grounding terminal 24, when the SAS plug is inserted into the slot 121, the plurality of first elastic arms 72 contact with the grounding portion of the SAS plug, each second grounding terminal 24 and the corresponding first elastic arm 72 contact with the grounding portion of the same grounding terminal of the SAS plug, so that the SAS plug does not need to be provided with an additional grounding member, the overall grounding effect of the electrical connector 100 and the SAS plug can be improved, and transmission of high-frequency signals is ensured.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

an insulating body;

a plurality of pairs of first differential signal terminals and a plurality of first ground terminals, each of the first differential signal terminals being formed by stamping and bending a metal plate, each of the first differential signal terminals including a first main body portion received in the insulator, a first contact portion extending forward from the first main body portion, and a first tail portion extending backward from the first main body portion to the insulator, the first main body portion having a plate thickness direction in an up-down direction perpendicular to the transverse direction and the front-rear direction, each of the first ground terminals being formed by blanking the metal plate, each of the first ground terminals including a second main body portion received in the insulator, a second contact portion extending forward from the second main body portion, and a second tail portion connected to a rear end of the second main body portion and located outside the insulator, the plate thickness direction of the second main body parts is a transverse direction, each second main body part extends along the transverse direction to form at least one protruding part, and the protruding parts are positioned in the insulating body;

the shielding shells are fixed on the insulating body and are arranged at intervals in the transverse direction, the shielding shells and the first differential signal terminals are arranged in a one-to-one correspondence mode, each shielding shell surrounds a corresponding pair of the peripheries of the first differential signal terminals to form a three-dimensional shielding space, and each protruding portion is adjacent to the corresponding side wall of the shielding shell and contacts with the corresponding side wall of the shielding shell in the transverse direction.

2. The electrical connector of claim 1, wherein: the insulation body is provided with a base part and a butt joint part extending forwards from the base part, a slot is concavely arranged backwards in the butt joint part, a first side wall and a second side wall which are oppositely arranged are arranged on two sides of the slot along the vertical direction, the first side wall is positioned above the second side wall, a protruding part is arranged on the first side wall or the second side wall, the protruding part faces away from the slot, the direction of the protruding part is protruding and extends, a plurality of first accommodating grooves and a plurality of second accommodating grooves are arranged at intervals along the transverse direction, each shielding shell is accommodated in each corresponding first accommodating groove, each first grounding terminal is accommodated in each corresponding second accommodating groove, the second accommodating grooves are communicated with the corresponding adjacent first accommodating grooves, and at least part of the protruding part is positioned in the first accommodating grooves.

3. The electrical connector of claim 2, wherein: the second side wall is accommodated in a plurality of pairs of second differential signal terminals and a plurality of second ground terminals which are arranged at intervals along the transverse direction, the second side wall accommodates a ground part, the ground part covers the plurality of pairs of second differential signal terminals and the plurality of second ground terminals along the vertical direction, the ground part extends forwards to form a plurality of first elastic arms and extends backwards to form a plurality of second elastic arms, the plurality of first elastic arms protrude into the slot, when a butt-joint plug is inserted into the slot, the plurality of first elastic arms are contacted with a ground part of the butt-joint plug, the plurality of second elastic arms are arranged in a one-to-one correspondence with the plurality of second ground terminals, and each second elastic arm is abutted against each corresponding second ground terminal.

4. The electrical connector of claim 2, wherein: the first accommodating groove penetrates upwards through the top surface of the first side wall, the top wall of the shielding shell is at least partially exposed outside the insulating body, a shielding cover is arranged on the first side wall and at least partially exposed on the top surface of the insulating body, and the shielding cover is positioned above the shielding shells and is in contact with the top walls of the shielding shells.

5. The electrical connector of claim 4, wherein: the top surface of first lateral wall is the undercut and is equipped with a recess, the recess extends and just with a plurality of along transverse direction first accepting groove is linked together, the top surface of shielding shell is higher than or the parallel and level the bottom surface of recess, it is located to shield the lid in the recess, it is fixed with a plurality of to shield the roof of shell through spot welding.

6. The electrical connector of claim 1, wherein: the second main body part is fixed in insulator just is located two along the transverse direction between the shield shell, the second main body part has two along the transverse direction tear the bulge, two the bulge extends towards opposite direction each other, and sets up along upper and lower direction interval, is located two of the transverse both sides of second main body part the shield shell respectively with two the bulge butt.

7. The electrical connector of claim 1, wherein: the length of the top wall of the shielding shell along the front-back direction is greater than the length of the bottom wall of the shielding shell along the front-back direction, each shielding shell surrounds the first main body part of the corresponding pair of first differential signal terminals, the first contact part extends downwards from the front end of the first main body part and protrudes out of the shielding shell, and the first contact part is located in front of the bottom wall of the shielding shell.

8. The electrical connector of claim 1, wherein: the first grounding terminal is located outside the shielding shell, the length of the second main body part in the front-back direction is smaller than that of the top wall of the shielding shell, the width of the second main body part in the up-down direction is larger than that of the side wall of the shielding shell, and the protruding part is abutted to the side wall of the shielding shell.

9. The electrical connector of claim 1, wherein: the first tail part extends from the first main body part to bend backwards and upwards, the second tail part is formed by upwards protruding the top of the rear end of the second main body part, the plate surface of the second tail part is perpendicular to the plate surface of the first tail part, and the rear end surface of the first tail part and the rear end surface of the second tail part are located on the same plane.

10. The electrical connector of claim 9, wherein: the top of the second main body part is provided with a stopping part in an upward protruding mode, the stopping part is located in front of the second tail part and arranged at intervals with the second tail part, and the stopping part is stopped at the rear end face of the insulating body.

11. The electrical connector of claim 1, wherein: the shielding shell is provided with a bending piece located outside the insulating body, the bending piece comprises a bending part and a limiting part, the bending part is bent upwards from the rear end face of the shielding shell, the limiting part extends forwards from the bending part, and the limiting part is stopped on the upper surface of the insulating body.

12. The electrical connector of claim 1, wherein: the two first main body parts of each pair of the first differential signal terminals are embedded in an insulating block together, the insulating block is contained in the insulating body, the shielding shell is sleeved on the insulating block from front to back, two sides of the rear end of the insulating block are respectively provided with a convex block in an upward protruding manner, two sides of the rear end of the shielding shell are respectively provided with a notch for containing the convex block in a concave manner, and the convex block is blocked on the front wall surface of the notch.