CN213484116U - Electric connector combination and electric connector thereof - Google Patents

Abstract

The utility model discloses electric connector combination and electric connector thereof discloses an electric connector combination includes: the electric connector comprises an insulating body, wherein the insulating body is provided with a butt joint cavity and a first side wall positioned on one side of the butt joint cavity, a grounding terminal groove and an accommodating groove are concavely arranged from the first side wall, and the grounding terminal groove is communicated with the accommodating groove and the butt joint cavity; the grounding terminal comprises a connecting part, a first contact part and a second contact part, wherein the first contact part is bent forwards from the connecting part and extends and is exposed to the butting cavity; the grounding piece comprises a second contact part, a butting part and a connecting part, wherein the main body part extends forwards and towards the butting cavity in an inclined mode so as to be exposed out of the butting cavity; the butt-joint connector comprises a base part and a butt-joint part which is arranged in a protruding mode from the base part, and the butt-joint part is provided with a butt-joint grounding part; when the electric connector is butted with the butting connector, the second contact part is positioned between the grounding terminal and the butting grounding part, the first contact part and the second contact part are jointly butted with the butting grounding part, and the butting connector and the electric connector share one grounding piece, so that the grounding effect is enhanced.

Description

Electric connector combination and electric connector thereof

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector assembly and an electrical connector thereof, and more particularly to an electrical connector assembly and an electrical connector thereof with high frequency performance.

[ background of the invention ]

There is a conventional combination of electrical connectors fixed on a circuit board, such as Serial Attached SCSI (small computer system interface) that transmits signals at high speed by using Serial technology, the electric connector combination comprises an electric connector and a butting connector which is plugged and matched with the electric connector, the electric connector is internally provided with differential signal pairs and grounding terminals, the butting connector is internally provided with butting differential signal pairs and butting grounding terminals, in order to improve the high frequency performance of the electrical connector assembly, a first grounding plate is usually disposed in the electrical connector to abut against the grounding terminal, and simultaneously providing a second grounding tab in the mating connector for abutting against the mating grounding terminal, the grounding pieces are respectively arranged in the electric connector and the butting connector so as to improve the shielding effect and achieve the expected high-frequency transmission rate.

However, under the more intense competitive environment of many connector manufacturers, customers may distribute the electrical connector and the docking connector to two different connector manufacturers for development, but some connector manufacturers have difficulty in adding a grounding piece in the connector or the docking connector due to their technical limitations, and do not perform a high-frequency test after the mating of the connector and the docking connector before the factory shipment, so that it is difficult to ensure that the grounding piece is provided for both the electrical connector and the docking connector for testing high frequency, when the different connector manufacturers deliver products to customers, the customer will perform the high-frequency test again on the mating use state of the electrical connector and the docking connector, but in the high-frequency simulation analysis, if one of the connector or the docking connector is not provided with the grounding piece, the high-frequency simulation analysis will not pass, therefore, the electric connector and the butting connector cannot reach the expected high-frequency transmission rate after being spliced and matched and become defective products.

Therefore, there is a need to design a new electrical connector assembly and an electrical connector thereof to overcome the above problems.

[ Utility model ] content

The utility model discloses an author aim at provides one kind through set up the second contact site on the grounding part and make the total one grounding part of butting connector and electric connector in order to guarantee the electric connector combination of butting connector shielding effect and electric connector with butt joint ground connection portion contact.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, the utility model provides an electric connector combination, a serial communication port, include: an electrical connector, the electrical connector including an insulative housing, the insulative housing being recessed from front to back to define a mating cavity, the insulative housing defining a first sidewall on one side of the mating cavity, the first sidewall being recessed to define at least one ground terminal slot and an accommodating slot, the ground terminal slot communicating the accommodating slot and the mating cavity; the plurality of signal terminals and at least one grounding terminal are arranged on the first side wall side by side, the grounding terminal comprises a connecting part accommodated in the grounding terminal groove, and a first contact part which is bent forwards from the connecting part and extends and is exposed to the butting cavity; the grounding piece comprises a main body part accommodated in the accommodating groove, at least one second contact part extending forwards from the main body part and obliquely towards the butt joint cavity so as to be exposed out of the butt joint cavity, and at least one abutting part extending obliquely from the main body part away from the butt joint cavity and towards the connecting part, wherein the abutting part abuts against the connecting part; the butting connector is used for butting with the electric connector along the front-back direction and comprises a base part, a butting part is convexly arranged along the front-back direction from the base part, and the butting part is provided with at least one butting grounding part; when the electric connector is butted with the butting connector, the butting portion is inserted into the butting cavity, the second contact portion is positioned between the grounding terminal and the butting grounding portion, and the first contact portion and the second contact portion are jointly butted against the butting grounding portion.

Furthermore, the first contact part is abutted with the butt grounding part to form a first contact point, the second contact part is abutted with the butt grounding part to form a second contact point, and the second contact point is positioned behind the first contact point.

Further, a guiding part extends forwards from the second contact part, when the electric connector and the butting connector are not butted, the guiding part does not abut against the first contact part, and when the butting connector is inserted into the electric connector for butting, the guiding part abuts against the first contact part.

Further, the guide connection part and the first contact part are abutted to form a third contact point, and the third contact point is located between the first contact point and the second contact point in the front-back direction.

Further, the first contact part and the second contact part are cantilevers which protrude upwards and extend into the butt joint cavity, the abutting part is a cantilever bent downwards, and the guide connection part is a free tail end of the second contact part.

Further, the grounding terminal groove is recessed backward from the front end of the insulating body, the receiving groove is recessed forward from the rear end of the insulating body, and the extending direction of the length of the grounding terminal groove is perpendicular to the extending direction of the length of the receiving groove.

Further, the second contact portion inclines forward and extends from the front end face of the main body portion, at least one through hole is formed in the main body portion, the abutting portion inclines backward and extends from the front edge of the through hole, and the second contact portion and the abutting portion are arranged in a vertically staggered mode in the front-back direction.

Further, the ground terminal and the plurality of signal terminals are arranged in a row in the left-right direction, and the second contact portion and the abutting portion have the same width in the left-right direction.

Further, a plurality of signal terminal grooves are concavely arranged on the first side wall, a containing groove is concavely arranged on the first side wall from back to front, the containing groove is communicated with the signal terminal grooves and the grounding terminal groove, a first insulating piece, the grounding terminal and the signal terminal are molded to form a first terminal module, the first terminal module is assembled in the containing groove from back to front, so that the signal terminal and the grounding terminal are correspondingly contained in the signal terminal groove and the grounding terminal groove, the containing groove is formed between the top surface of the containing groove and the top surface of the first insulating piece, the main body part is inserted into the containing groove, and the second contact part enters the grounding terminal groove and abuts against the same grounding part together with the corresponding grounding terminal.

Furthermore, the first insulating part is provided with a plurality of grooves which are recessed from top to bottom, the grounding terminal and the signal terminal are correspondingly exposed out of the grooves, the grounding part is provided with a plurality of abutting parts, the abutting parts extend downwards one by one to enter the corresponding grooves to abut against the connecting part, the main body part is torn at a position corresponding to the grooves to form at least one clamping part which extends downwards, the clamping part is positioned between two adjacent abutting parts, and the clamping part abuts against the rear edge of the groove.

Further, the ground terminals and the ground terminal grooves are provided with a plurality of ground terminals which are accommodated in the ground terminal grooves in a one-to-one correspondence manner, two signal terminals are positioned between two adjacent ground terminals, a plurality of second contact portions and a plurality of abutting portions extend from the main body portion, the second contact portions enter the ground terminal grooves in a one-to-one correspondence manner and are exposed out of the abutting cavity, the abutting portions abut against the connecting portions in a one-to-one correspondence manner, the abutting ground portions are provided with a plurality of abutting ground portions, and each abutting ground portion abuts against the first contact portion and the second contact portion which are positioned in the same ground terminal groove.

Further, the docking connector includes a docking portion in a shape of a tongue plate, a plurality of docking signal terminals and a plurality of docking ground terminals are arranged in a row on the docking portion, the docking signal terminals are in contact with the signal terminals, the docking ground terminals include the docking ground portion in a shape of a flat plate, a convex portion is convexly provided from one side of the docking portion, a concave portion adapted to the convex portion is concavely provided from the first side wall, and the ground member is located at one side of the concave portion in the left-right direction.

On the other hand, the utility model also provides an electric connector for dock along the fore-and-aft direction with the butt joint connector that is equipped with butt joint ground terminal, a serial communication port, include: the insulation body is provided with a first side wall positioned on one side of the butt joint cavity, a plurality of signal terminals and at least one grounding terminal are arranged on the first side wall side by side, and the grounding terminal is provided with a flat connecting part and an elastic first contact part which is bent forwards from the connecting part and extends and is exposed in the butt joint cavity; the grounding piece is arranged on the first side wall and is closer to the butting cavity than the grounding terminal, the grounding piece is provided with at least one second contact part which extends forwards and is bent and extended towards the butting cavity so as to be exposed out of the butting cavity, and a guide connection part extends from the second contact part; when the butting connector is inserted into the butting cavity, the first contact part and the second contact part are abutted to the butting grounding terminal together, the second contact part is pressed by the butting connector to deviate towards the grounding terminal, and the guide connection part is abutted to the first contact part.

Further, the first contact portion abuts against the counterpart ground terminal to form a first contact point, the second contact portion abuts against the counterpart ground terminal to form a second contact point, and the lead-in portion abuts against the first contact portion to form a third contact point, the third contact point being located between the first contact point and the second contact point in the front-rear direction.

Further, the first contact point, the second contact point, and the third contact point are located on the same plane in the up-down direction.

Furthermore, the main body part is far away from the butt joint cavity and bends towards the connecting part to extend at least one butt joint part, the butt joint part is abutted against the connecting part, the butt joint part and the second contact part are respectively positioned on the upper side and the lower side of the main body part, and the guide connection part is the free tail end of the second contact part.

Further, the ground terminal with the ground terminal groove all is equipped with a plurality ofly, and is a plurality of the ground terminal one-to-one accept in a plurality of the ground terminal groove, two signal terminal are located two between the ground terminal, certainly the main part extends to have a plurality ofly the second contact site and a plurality of butt joint portion, and is a plurality of the second contact site one-to-one gets into a plurality ofly the ground terminal groove and in the butt joint chamber, it is a plurality of the butt joint portion one-to-one butt joint portion exposes to a plurality of connecting portion, butt joint ground terminal is equipped with a plurality ofly, and is a plurality of first contact site and a plurality of the second contact site one-to-one butt joint ground terminal.

Furthermore, the connecting portion is bent backwards to form a welding portion to be welded with a circuit board, the connecting portion is connected with the first contact portion and the welding portion, the grounding piece is far away from the butt joint cavity and faces the connecting portion, at least one butting portion extends obliquely, and the butting portion is butted with the connecting portion.

Compared with the prior art, the grounding terminal comprises the first contact part which is bent forwards from the connecting part and exposed to the butting cavity, the grounding piece comprises the second contact part which is bent forwards from the main body part and obliquely extends towards the butting cavity to be exposed to the butting cavity, when the butting connector is butted with the electric connector, the first contact part and the second contact part are jointly abutted against the butting grounding part, so that the grounding terminal and the grounding piece of the electric connector can be electrically connected with the butting grounding part of the butting connector, and the butting grounding part can be grounded through the grounding terminal and the grounding piece, so that an interference signal can be quickly led out, and therefore, the butting connector can share one grounding piece with the electric connector regardless of whether a grounding piece is arranged inside the butting connector or not, the butting connector and the electric connector can achieve stronger shielding effect by sharing the grounding piece when being matched and used, and the grounding paths among the butting grounding terminal, the grounding terminal and the grounding piece can be mutually conducted by two modes of obliquely extending the butting part from the main body part away from the butting cavity and towards the connecting part or extending the guide part from the second contact part, so that the number of conductive paths from the butting connector to the electric connector is increased, the distance of the conductive paths is shortened, interference current can be led out in shorter time, the shielding effect of the connector combination is better enhanced, and the first contact part is arranged between the butting grounding part and the grounding terminal, on the premise that the holding position of the grounding terminal is unchanged and the size of the grounding terminal is not increased, the residual space between the butt grounding part and the grounding terminal can be reasonably utilized, and the grounding piece can extend out of the shorter second contact part to be in contact with the butt grounding part, so that the overall length of the electric connector in the front-back direction cannot be increased due to the arrangement of the second contact part, the grounding piece can be formed by a smaller metal plate, and the material is saved.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector assembly of the present invention;

FIG. 2 is a perspective assembled view of the electrical connector and the mating connector of FIG. 1 shown unmated;

FIG. 3 is a bottom view of FIG. 2;

fig. 4 is a schematic view of the mating of the electrical connector and the mating connector of fig. 2;

fig. 5 is a perspective view of the docking connector in the rear view of fig. 4 turned 180 ° up and down;

FIG. 6 is a perspective view of the electrical connector of FIG. 2 from another perspective;

FIG. 7 is a cross-sectional view taken along direction E-E of FIG. 3;

FIG. 8 is a cross-sectional view taken along the direction F-F of FIG. 5;

FIG. 9 is a schematic view of the grounding member, the first terminal module and the butt grounding terminal in combination;

fig. 10 is a perspective view of the ground member.

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, the electrical connector assembly 100 of the present invention includes an electrical connector 200 and a mating connector 300 mated with the electrical connector 200 along a front-back direction. The electrical connector 200 is soldered to a circuit board (not shown) by surface mounting, and the electrical connector 200 includes an insulative housing 1, a first terminal group a, a second terminal group B, a third terminal group C, a fourth terminal group D, a grounding member 4, a first insulating member 51, a second insulating member 61 and a shielding plate 7 fixed to the insulative housing 1. The docking connector 300 includes an insulating housing 8, and a fifth terminal set 9, a sixth terminal set 93, a seventh terminal set 94, and an eighth terminal set 95 held in the insulating housing 8. For easy understanding, in the present embodiment, defined by the mating direction of the electrical connector 200 and the mating connector 300, the mating end of the electrical connector 200 is a front end, and the end away from the mating end is a rear end, and the mating end of the mating connector 300 is a front end, and the end away from the mating end is a rear end. Preferably, in this embodiment, the electrical connector 200 and the docking connector 300 are both SAS connectors, and in other embodiments, the electrical connector 200 and the docking connector 300 may be connectors of other specifications.

Referring to fig. 1 and 5, the insulative housing 1 is elongated, the insulative housing 1 is recessed from front to back to form a mating cavity 11, the insulative housing 1 has a first sidewall 12 located at a lower side of the mating cavity 11, a second sidewall 13 located at an upper side of the mating cavity 11, and a bottom wall 14 connecting the first sidewall 12 and the second sidewall 13 at a rear end of the mating cavity 11. The first sidewall 12 includes a first receiving portion 121, a second receiving portion 122, and a third receiving portion 123, the second receiving portion 122 is protruded away from the docking cavity 11 compared to the first receiving portion 121 and the third receiving portion 123, so that a recess 15 is formed between the third receiving portion 123 and the docking cavity 11. A plurality of first terminal grooves 1211 arranged in a row in the left-right direction are recessed from the front end surface of the first receiving part 121 for the insertion of the first terminal group a, a plurality of second terminal grooves 1221 arranged in a row in the left-right direction are recessed from the front end surface of the second receiving part 122 for the insertion of the second terminal group B, a plurality of third terminal grooves 1231 arranged in a row in the left-right direction are recessed from the front end surface of the third receiving part 123 for the insertion of the third terminal group C, and a plurality of fourth terminal grooves 131 arranged in a row in the left-right direction are recessed from the front end surface of the second side wall 13 for the insertion of the fourth terminal group D. The first terminal groove 1211, the second terminal groove 1221, the third terminal groove 1231, and the fourth terminal groove 131 are all in communication with the docking chamber 11. The first terminal groove 1211 includes a plurality of ground terminal grooves 1211A and a plurality of signal terminal grooves 1211B, the plurality of ground terminal grooves 1211A and the plurality of signal terminal grooves 1211B are arranged in a row in a left-right direction, and two signal terminal grooves 1211B are located between the two ground terminal grooves 1211A. An accommodating groove 16 is recessed forward from a rear end surface of the first sidewall 12, the accommodating groove 16 communicates with the plurality of signal terminal grooves 1211B and the plurality of ground terminal grooves 1211A, the accommodating groove 16 further includes an accommodating groove 161, the accommodating groove 161 is configured to accommodate the ground component 4, the accommodating groove 161 is located above the accommodating groove 16, and the accommodating groove 161 is deeper than the depth of the accommodating groove 16 recessed forward from the rear. The extending direction of the length of the receiving slot 161 is perpendicular to the extending direction of the length of the ground terminal slot 1211A, and the ground terminal slot 1211A communicates with the receiving slot 16 and the docking cavity 11, so that the ground terminal slot 1211A also communicates with the receiving slot 161 and the docking cavity 11.

Referring to fig. 1 and 2, the first terminal group a includes a plurality of signal terminals 2 and a plurality of ground terminals 3, the plurality of signal terminals 2 and the plurality of ground terminals 3 are arranged in a row along a left-right direction, two signal terminals 2 are located at two sides of two ground terminals 3, the plurality of signal terminals 2 are received in a plurality of signal terminal grooves 1211B in a one-to-one correspondence manner, and the plurality of ground terminals 3 are received in a plurality of ground terminal grooves 1211A in a one-to-one correspondence manner. Each of the ground terminals 3 includes a flat connection portion 31 accommodated in the ground terminal groove 1211A, a first contact portion 32 bent and extended forward from the connection portion 31 to expose the mating cavity 11, and then bent and extended downward to be elastic, the first contact portion 32 is a cantilever and can be elastically deformed in the vertical direction when pressed by the mating connector 300, and a soldering portion 33 bent and extended backward and downward from the connection portion 31 to the insulation body 1, and the soldering portion 33 is soldered to the circuit board in a surface mount manner.

Referring to fig. 1, 5, 7 and 10, the grounding member 4 is assembled to the receiving groove 161 of the first sidewall 12 from the back to the front, the grounding member 4 is disposed above the first terminal set a and is closer to the mating cavity 11 than the grounding terminal 3, and the grounding member 4 is formed by stamping and bending a metal plate (not shown). The grounding member 4 has a main body portion 41 accommodated in the accommodating groove 161, the main body portion 41 is shaped like a flat plate, and extends forward from a front end surface of the main body portion 41 and obliquely toward the docking cavity 11 to expose the plurality of second contact portions 42 of the docking cavity 11, the plurality of second contact portions 42 are arranged at intervals along a left-right direction, the plurality of second contact portions 42 enter the plurality of ground terminal grooves 1211A in a one-to-one correspondence manner and expose the plurality of ground terminal grooves 11, the second contact portions 42 are cantilever arms protruding upward into the docking cavity 11, a guide connection portion 43 extends forward from the second contact portion 42, and the guide connection portion 43 is a free end of the second contact portion 42. The main body portion 41 is provided with a plurality of through holes 44, a front edge of each through hole 44 is backward away from the docking cavity 11 and faces the connecting portion 31 to obliquely extend an abutting portion 45, the abutting portions 45 are abutted against the connecting portions 31 in a one-to-one correspondence manner, the abutting portions 45 and the second contact portions 42 are arranged in a vertically staggered manner along the front-back direction, and the abutting portions 45 are cantilevers bent downward. In the present embodiment, the number of the ground terminals 3, the second contact portions 42, the through holes 44 and the abutting portions 45 is the same, so that each ground terminal 3 can be conducted with the ground piece 4. The widths of the second contact portion 42 and the abutting portion 45 in the left-right direction are the same, so that the forces applied to the ground contact 4 on both sides of the main body portion 41 can be balanced, and the abutting portion 45 and the second contact portion 42 are respectively located on both upper and lower sides of the main body portion 41. A plurality of catches 46 extending downward are formed by tearing from the main body portion 41, and each catch 46 is located between two adjacent abutting portions 45.

Referring to fig. 1, 5, 7 and 9, the first insulating member 51, the ground terminals 3 and the signal terminals 2 are injection molded to form a first terminal module 5, the first terminal module 5 is assembled to the receiving cavity 16 from the back to the front so that the signal terminals 2 and the ground terminals 3 are correspondingly received in the signal terminal groove 1211B and the ground terminal groove 1211A, the receiving cavity 161 is formed between the top surface of the receiving cavity 16 and the top surface of the first insulating member 51, the ground member 4 is disposed in the receiving cavity 161, the main body portion 41 is inserted into the receiving cavity 161 from the back to the front, and the second contact portion 42 enters the ground terminal groove 1211A to abut against the corresponding ground terminal 3 to the mating connector 300. The first insulating member 51 is recessed from top to bottom to form a plurality of grooves 511, the plurality of grooves 511 are aligned with the plurality of ground terminal grooves 1211A and the plurality of signal terminal grooves 1211B along the front-back direction, the ground terminals 3 and the signal terminals 2 are exposed in the plurality of grooves 511 in a one-to-one correspondence manner, specifically, the connecting portions 31 of the ground terminals 3 are exposed in the grooves 511, and the plurality of abutting portions 45 extend downward into the grooves 511, in which the ground terminals 3 are exposed, in a one-to-one correspondence manner to abut against the connecting portions 31. The retaining portions 46 are formed by tearing from the main body 41 at positions corresponding to the grooves 511, each retaining portion 46 extends downward into the corresponding groove 511 where the signal terminal 2 is exposed, and the retaining portion 46 abuts against the rear edge of the groove 511 to prevent the grounding member 4 from exiting the receiving slot 161 backwards, so that the grounding member 4 can be stably arranged on the insulating body 1.

Referring to fig. 1, 2 and 4, the second terminal group B is correspondingly assembled to the second receiving portion 122, the third terminal group C is correspondingly assembled to the third receiving portion 123, the second insulating member 61 and the fourth terminal group D are injection-molded to form a second terminal module 6, the second terminal module 6 is disposed on the second sidewall 13, the fourth terminal group D is correspondingly assembled to the fourth terminal groove 131, and the second sidewall 13 is disposed below the second terminal module 6 and has a long-strip-shaped shielding plate 7.

Referring to fig. 1 to 3 and 5, the insulating base 8 is elongated and includes a base 81, a tongue-shaped abutting portion 82 protruding forward from the base 81, a protrusion 83 protruding from a lower surface of the abutting portion 82 and fitting with the recess 15, a first abutting surface 821 and a third abutting surface 822 provided on the lower surface of the abutting portion 82, a second abutting surface 831 formed on the lower surface of the protrusion 83, the second abutting surface 831 being located between the first abutting surface 821 and the third abutting surface 822 in the left-right direction, and a fourth abutting surface 823 provided on the upper surface of the abutting portion 82. The fifth terminal set 9 is assembled to the docking portion 82 and exposed at the first docking surface 821 to contact with the first terminal set a, the sixth terminal set 93 is assembled to the docking portion 82 and exposed at the second docking surface 831 to contact with the second terminal set B, the seventh terminal set 94 is assembled to the docking portion 82 and exposed at the third docking surface 822 to contact with the third terminal set C, and the eighth terminal set 95 is assembled to the docking portion 82 and exposed at the fourth docking surface 823 to contact with the fourth terminal set D. The fifth terminal group 9 includes a plurality of mating ground terminals 91 and a plurality of mating signal terminals 92, the plurality of mating signal terminals 92 and the plurality of mating ground terminals 91 are arranged in a row on the mating portion 82, the mating signal terminals 92 are in contact with the signal terminals 2, and the plurality of first contact portions 32 and the plurality of second contact portions 42 are in one-to-one contact with the plurality of mating ground terminals 91. Each of the mating ground terminals 91 includes the mating ground portion 911 exposed at the lower surface of the mating portion 82, and each of the mating ground portions 911 contacts both the first contact portion 32 and the second contact portion 42 in the same ground terminal groove 1211A.

Referring to fig. 4, 7 and 8, when the mating connector 300 is not inserted into the electrical connector 200, the first contact portion 32 and the second contact portion 42 extend into the mating cavity 11, and the conductive portion 43 is not abutted against the first contact portion 32. When the mating connector 300 is inserted into the electrical connector 200, the mating portion 82 is inserted into the mating cavity 11 in the front-back direction, the protrusion 83 is inserted into the recess 15, the second contact portion 42 is located between the ground terminal 3 and the mating ground portion 911, the first contact portion 32 and the second contact portion 42 located in the same ground terminal groove 1211A are abutted against the same mating ground terminal 91, the first contact portion 32 and the mating ground portion 911 of the mating ground terminal 91 are abutted against each other to form a first contact point 321, the second contact portion 42 and the mating ground portion 911 of the mating ground terminal 91 are abutted against each other to form a second contact point 421, the second contact portion 42 is pressed by the mating portion 82 to be shifted downward toward the ground terminal 3, and the guide portion 43 is abutted against the first contact portion 32 to form a third contact point 431, therefore, the butt grounding terminal 91, the grounding terminal 3 and the grounding piece 4 are mutually conducted at the butt joint of the electrical connector 200 and the butting connector 300, so as to achieve the shielding effect, and the acting force between the guiding part 43 and the first contact part 32 is small, and the guiding part and the first contact part are only butted when the butting connector 300 is inserted, so that the grounding terminal 3 and the grounding piece 4 are not easy to elastically fatigue, and the service life of the connector is prolonged. Before and after the butting, each of the butting parts 45 is butted against the connecting part 31 to form a fourth contact point 451. The first contact point 321, the second contact point 421, the third contact point 431, and the fourth contact point 451 are located on the same plane in the up-down direction. The first contact point 321, the third contact point 431, the second contact point 421 and the fourth contact point 451 are arranged in this order in the front-rear direction, the third contact point 431 is located between the first contact point 321 and the second contact point 421, the third contact point 431 is located below the first contact point 321 and the second contact point 421 in the up-down direction, and the second contact point 421 and the fourth contact point 451 are located on the upper and lower sides of the main body portion 41, respectively.

To sum up, the utility model discloses an electric connector combination and electric connector thereof has following beneficial effect:

1. the grounding terminal 3 includes the first contact portion 32 bent forward from the connecting portion 31 and exposed to the mating cavity 11, the grounding member 4 includes the second contact portion 42 bent forward from the main body portion 41 and inclined toward the mating cavity 11 to be exposed to the mating cavity 11, when the mating connector 300 and the electrical connector 200 are mated, the first contact portion 32 and the second contact portion 42 commonly abut against the mating ground portion 911, so that the grounding terminal 3 and the grounding member 4 of the electrical connector 200 can be electrically connected with the mating ground portion 911 of the mating connector 300, since the mating ground portion 911 can be grounded through the grounding terminal 3 and the grounding member 4, an interference signal can be quickly derived, regardless of whether a grounding piece is provided inside the mating connector 300, the docking connector 300 and the electrical connector 200 can share one grounding piece 4, the docking connector 300 and the electrical connector 200 can achieve a strong shielding effect by sharing the grounding piece 4 when being used in a mating manner, and the grounding terminal 3 can be abutted by two ways of obliquely extending the abutting part 45 from the main body part 41 away from the docking cavity 11 and toward the connecting part 31 or extending the conductive part 43 from the second contact part 42, so that grounding paths among the docking grounding terminal 91, the grounding terminal 3 and the grounding piece 4 can be conducted with each other, the number of conductive paths from the docking connector 300 to the electrical connector 200 is increased, the distance of the conductive paths is shortened, and therefore, an interference current can be led out in a shorter time, and the shielding effect of the connector combination is better enhanced, by providing the first contact portion 32 between the mating ground portion 911 and the ground terminal 3, the remaining space between the mating ground portion 911 and the ground terminal 3 can be utilized properly without increasing the size of the ground terminal 3 while maintaining the position, and the ground member 4 can be extended by the short second contact portion 42 to contact the mating ground portion 911, so that the overall length of the electrical connector 200 in the front-rear direction is not increased by providing the second contact portion 42, and the ground member 4 can be molded from a small metal plate material, thereby saving material.

2. The second contact portion 42 extends the guiding portion 43 forward, when the electrical connector 200 and the mating connector 300 are not mated, the guiding portion 43 does not abut against the first contact portion 32, when the mating connector 300 is inserted into the electrical connector 200 for mating, the conductive portion 43 abuts against the first contact portion 32, so as to form mutual conduction among the butt grounding terminal 91, the grounding terminal 3 and the grounding piece 4 at the butt joint of the electrical connector 200 and the butt connector 300, thereby achieving a good shielding effect, and, the force between the guiding part 43 and the first contact part 32 is small, and is abutted only when the docking connector 300 is inserted, therefore, the grounding terminal 3 and the grounding piece 4 are not easily elastically fatigued, and the service life of the electrical connector 200 is prolonged.

3. The first contact portion 32 and the second contact portion 42 are both cantilevers that protrude upward to the docking cavity 11, the abutting portion 45 is a cantilever that bends downward, and the ground terminal 3 and the ground member 4 are elastically abutted by the cantilevers, so that the first contact portion 32, the second contact portion 42 and the abutting portion 45 have a good elastic abutting force, and stable contact between the ground terminal 3 and the ground member 4 is maintained.

4. The guiding portion 43 is a free end of the second contact portion 42, when the mating connector 300 is inserted, the second contact portion 42 receives downward abutting force from the abutting portion 82, the guiding portion 43 at the end of the second contact portion 42 abuts against the first contact portion 32, so that the first contact portion 32 provides an upward supporting force for the second contact portion 42, the first contact portion 32 and the mating ground portion 911 are contacted more stably, and the guiding portion 43 is a free end of the second contact portion 42, so that when the second contact portion 42 receives force, the guiding portion 43 has a maximum movement width compared with other portions, and therefore, the second contact portion 42 can abut against the first contact portion 32 only by receiving a smaller abutting force from the abutting portion 82, therefore, the conduction between the grounding piece 4 and the grounding terminal 3 can be easily ensured.

5. The widths of the second contact portion 42 and the abutting portion 45 in the left-right direction are the same, so that the force applied to the ground contact 4 on both sides of the main body portion 41 can be balanced, and the ground contact 4 is less prone to inclination and deformation due to external force.

6. The retaining portions 46 are formed by tearing from the main body 41 at positions corresponding to the grooves 511, each retaining portion 46 extends downward into the corresponding groove 511 where the signal terminal 2 is exposed, and the retaining portion 46 abuts against the rear edge of the groove 511 to prevent the grounding member 4 from exiting the receiving slot 161 backwards, so that the grounding member 4 can be stably arranged on the insulating body 1.

7. The ground terminals 3 are correspondingly accommodated in the ground terminal slots 1211A, the signal terminals 2 are located between two adjacent ground terminals 3, the second contact portions 42 and the abutting portions 45 extend from the main body portion 41, the second contact portions 42 enter the ground terminal slots 1211A and are exposed to the mating cavity 11, the abutting portions 45 abut against the connecting portions 31, the ground member 4 connects the ground terminals 3 in series, the mating ground portion 911 is provided with a plurality of ground portions 911, each of the mating ground portions 911 abuts against the first contact portion 32 and the second contact portion 42 of the same ground terminal slot 1211A, so that the ground member 4 connects the mating ground terminals 91 in series, and the electrical connector 200 and the mating ground terminal 91 of the mating connector 300 are connected together in series, thereby enabling the electrical connector 200 and the mating ground terminal 91 of the mating connector 300 to be connected together, The grounding terminal 3 and the grounding piece 4 are mutually conducted to form a plurality of grounding paths, so that the best grounding effect is realized under the condition that other structures are not additionally arranged.

8. The guiding portion 43 and the first contact portion 32 are abutted to form the third contact point 431, and the third contact point 431 is located between the first contact point 321 and the second contact point 421 in the front-back direction, so that the grounding piece 4 can be electrically conducted with the grounding terminal 3 and the butt grounding terminal 91 at the same time only by extending one cantilever, and the grounding piece 4 is simple in structure and convenient to mold.

9. The second contact portion 42 enters the ground terminal groove 1211A and abuts against the corresponding mating ground portion 911 together with the corresponding first contact portion 32, the second contact portion 42 and the first contact portion 32 share one ground terminal groove 1211A, and the insulating body 1 does not need to be separately provided with other grooves to accommodate the first contact portion 32, thereby simplifying the structure of the insulating body 1 and reducing the difficulty in molding the insulating body 1.

10. Since the first contact point 321, the second contact point 421, and the third contact point 431 are located on the same plane in the vertical direction, when the ground contact portion 911, the first contact portion 32, and the second contact portion 42 are in contact with each other, only a contact force in the vertical direction is applied, and the ground contact portion 911, the first contact portion 32, and the second contact portion 42 are less likely to be deviated or have poor contact.

11. The first contact point 321 is located in front of the second contact point 421, and when the docking portion 82 is inserted, the docking ground portion 911 contacts the first contact portion 32 of the ground terminal 3 first and then contacts the second contact portion 42 of the ground member 4, so that the docking ground portion 911 can be ensured to be stably contacted with the ground terminal 3 first, and the second contact portion 42 is located in front of the first contact portion 32 and is prevented from contacting the docking ground portion 911 first, thereby preventing the first contact portion 32 from being in poor contact with the docking ground portion 911.

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 (18)

1. An electrical connector assembly, comprising:

an electrical connector, the electrical connector including an insulative housing, the insulative housing being recessed from front to back to define a mating cavity, the insulative housing defining a first sidewall on one side of the mating cavity, the first sidewall being recessed to define at least one ground terminal slot and an accommodating slot, the ground terminal slot communicating the accommodating slot and the mating cavity; the plurality of signal terminals and at least one grounding terminal are arranged on the first side wall side by side, the grounding terminal comprises a connecting part accommodated in the grounding terminal groove, and a first contact part which is bent forwards from the connecting part and extends and is exposed to the butting cavity; the grounding piece comprises a main body part accommodated in the accommodating groove, at least one second contact part extending forwards from the main body part and obliquely towards the butt joint cavity so as to be exposed out of the butt joint cavity, and at least one abutting part extending obliquely from the main body part away from the butt joint cavity and towards the connecting part, wherein the abutting part abuts against the connecting part;

the butting connector is used for butting with the electric connector along the front-back direction and comprises a base part, a butting part is convexly arranged along the front-back direction from the base part, and the butting part is provided with at least one butting grounding part;

when the electric connector is butted with the butting connector, the butting portion is inserted into the butting cavity, the second contact portion is positioned between the grounding terminal and the butting grounding portion, and the first contact portion and the second contact portion are jointly butted against the butting grounding portion.

2. The electrical connector assembly of claim 1, wherein: the first contact part is abutted with the butt grounding part to form a first contact point, the second contact part is abutted with the butt grounding part to form a second contact point, and the second contact point is positioned behind the first contact point.

3. The electrical connector assembly of claim 2, wherein: a guiding part extends forwards from the second contact part, when the electric connector and the butting connector are not butted, the guiding part is not abutted against the first contact part, and when the butting connector is inserted into the electric connector for butting, the guiding part is abutted against the first contact part.

4. The electrical connector assembly of claim 3, wherein: the guide connection part and the first contact part are abutted to form a third contact point, and the third contact point is located between the first contact point and the second contact point in the front-back direction.

5. The electrical connector assembly of claim 3, wherein: the first contact part and the second contact part are cantilevers which protrude upwards and extend into the butt joint cavity, the abutting part is a cantilever bent downwards, and the guide connection part is the free tail end of the second contact part.

6. The electrical connector assembly of claim 1, wherein: the grounding terminal groove is concavely arranged backwards from the front end of the insulation body, the containing groove is concavely arranged forwards from the rear end of the insulation body, and the extending direction of the length of the grounding terminal groove is vertical to the extending direction of the length of the containing groove.

7. The electrical connector assembly of claim 1, wherein: the second contact part inclines forward and extends from the front end face of the main body part, the main body part is provided with at least one through hole, the abutting part inclines backward and extends from the front edge of the through hole, and the second contact part and the abutting part are arranged in a vertically staggered mode along the front-back direction.

8. The electrical connector assembly of claim 1, wherein: the ground terminal and the plurality of signal terminals are arranged in a row in a left-right direction, and the second contact portion and the abutting portion have the same width in the left-right direction.

9. The electrical connector assembly of claim 1, wherein: the first side wall is concavely provided with a plurality of signal terminal grooves, the first side wall is concavely provided with a containing groove from back to front, the containing groove is communicated with the signal terminal grooves and the grounding terminal groove, a first insulating piece, the grounding terminal and the signal terminal are molded to form a first terminal module, the first terminal module is assembled in the containing groove from back to front so that the signal terminal and the grounding terminal are correspondingly contained in the signal terminal groove and the grounding terminal groove, the containing groove is formed between the top surface of the containing groove and the top surface of the first insulating piece, the main body part is inserted into the containing groove, and the second contact part enters the grounding terminal groove to be abutted against the same grounding part with the corresponding grounding terminal.

10. The electrical connector assembly of claim 9, wherein: the first insulating part is provided with a plurality of grooves which are recessed from top to bottom, the grounding terminal and the signal terminal are correspondingly exposed out of the grooves, the grounding part is provided with a plurality of abutting parts, the abutting parts extend downwards one by one to enter the corresponding grooves to abut against the connecting part, the main body part is torn at a position corresponding to the grooves to form at least one clamping part which extends downwards, the clamping part is positioned between two adjacent abutting parts, and the clamping part abuts against the rear edge of the groove.

11. The electrical connector assembly of claim 1, wherein: the plurality of grounding terminals and the plurality of grounding terminal grooves are respectively provided, the plurality of grounding terminals are accommodated in the plurality of grounding terminal grooves in a one-to-one correspondence manner, the two signal terminals are positioned between the two adjacent grounding terminals, the main body part extends to form a plurality of second contact parts and a plurality of abutting parts, the plurality of second contact parts enter the plurality of grounding terminal grooves in a one-to-one correspondence manner and are exposed out of the abutting cavity, the plurality of abutting parts abut against the plurality of connecting parts in a one-to-one correspondence manner, the plurality of abutting grounding parts are provided, and each abutting grounding part abuts against the first contact part and the second contact part which are positioned in the same grounding terminal groove.

12. The electrical connector assembly of claim 1, wherein: the butt-joint connector comprises a tongue-shaped butt-joint part, a plurality of butt-joint signal terminals and a plurality of butt-joint grounding terminals are arranged in a row on the butt-joint part, the butt-joint signal terminals are in contact with the signal terminals, the butt-joint grounding terminals comprise a flat butt-joint grounding part, a convex part is convexly arranged on one side of the butt-joint part, a concave part matched with the convex part is concavely arranged on the first side wall, and the grounding piece is positioned on one side of the concave part in the left-right direction.

13. An electrical connector for mating with a mating connector having mating ground terminals in a front-to-back direction, comprising:

the insulation body is provided with a first side wall positioned on one side of the butt joint cavity, a plurality of signal terminals and at least one grounding terminal are arranged on the first side wall side by side, and the grounding terminal is provided with a flat connecting part and an elastic first contact part which is bent forwards from the connecting part and extends and is exposed in the butt joint cavity; the grounding piece is arranged on the first side wall and is closer to the butting cavity than the grounding terminal, the grounding piece is provided with at least one second contact part which extends forwards and is bent and extended towards the butting cavity so as to be exposed out of the butting cavity, and a guide connection part extends from the second contact part;

when the butting connector is inserted into the butting cavity, the first contact part and the second contact part are abutted to the butting grounding terminal together, the second contact part is pressed by the butting connector to deviate towards the grounding terminal, and the guide connection part is abutted to the first contact part.

14. The electrical connector of claim 13, wherein: the first contact portion abuts against the butt ground terminal to form a first contact point, the second contact portion abuts against the butt ground terminal to form a second contact point, and the guide connection portion abuts against the first contact portion to form a third contact point, the third contact point being located between the first contact point and the second contact point in the front-rear direction.

15. The electrical connector of claim 14, wherein: the first contact point, the second contact point and the third contact point are located on the same plane in the up-down direction.

16. The electrical connector of claim 13, wherein: the main body part is far away from the butt joint cavity and bends towards the connecting part to extend at least one butt joint part, the butt joint part is abutted against the connecting part, the butt joint part and the second contact part are respectively positioned on the upper side and the lower side of the main body part, and the guide connection part is the free tail end of the second contact part.

17. The electrical connector of claim 16, wherein: the ground terminal with the ground terminal groove all is equipped with a plurality ofly, and is a plurality of the ground terminal one-to-one accept in a plurality of the ground terminal groove, two signal terminal is located two between the ground terminal, certainly the main part extends to have a plurality ofly second contact site and a plurality of butt joint portion, and is a plurality of the second contact site one-to-one gets into a plurality ofly the ground terminal groove and exposes to the butt joint chamber, and is a plurality of the butt joint portion one-to-one butt joint is a plurality of connecting portion, butt joint ground terminal is equipped with a plurality ofly, and is a plurality of first contact site and a plurality of the second contact site one-to-one butt joint is a plurality of butt joint ground terminal.

18. The electrical connector of claim 13, wherein: the connecting portion is bent backwards to form a welding portion to be welded with a circuit board, the connecting portion is connected with the first contact portion and the welding portion, the grounding piece is far away from the butt joint cavity and faces the connecting portion, at least one butting portion extends obliquely, and the butting portion is butted with the connecting portion.

Images