CN214254922U

CN214254922U - Electrical connector

Info

Publication number: CN214254922U
Application number: CN202022422565.2U
Authority: CN
Inventors: 林文伟
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-09-21
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses an electric connector, include: an insulating body; the shielding part is arranged on the insulating body and comprises an upper shielding sheet and a lower shielding sheet which are stacked up and down, the upper shielding sheet is provided with an upper through groove, the upper through groove comprises an upper clamping groove and an upper abdicating groove communicated with the upper clamping groove, the lower shielding sheet is provided with a lower through groove corresponding to the upper through groove, the lower through groove comprises a lower clamping groove and a lower abdicating groove communicated with the lower clamping groove, the lower clamping groove is communicated with the corresponding upper abdicating groove, and the upper clamping groove is communicated with the corresponding lower abdicating groove; two rows of terminals, the shielding part is located between two rows of terminals, every row of terminal includes signal terminal and ground terminal, the ground terminal in the row of terminal of going up is equipped with the card arm, the ground terminal in the row of terminal of going down is equipped with down the card arm, go up the card arm and insert draw-in groove and the lower groove of stepping down that corresponds, it is fixed with last draw-in groove to go up the card arm, and set up with the cell wall in the groove of stepping down separates, lower card arm inserts draw-in groove and the last groove of stepping down that corresponds down, lower card arm is fixed with lower draw-in groove, and set up with the cell wall in the groove of stepping down separates.

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 with a shield.

[ background of the invention ]

An existing electrical connector includes an insulating body, two rows of terminals disposed on the insulating body, and a shielding element, where the shielding element is located between the two rows of terminals, each row of terminals is arranged in a left-right direction and includes a plurality of signal terminals and a plurality of ground terminals, the shielding element includes a plurality of upper spring pieces formed by extending the terminals toward the upper row and a plurality of lower spring pieces formed by extending the terminals toward the lower row, each upper spring piece corresponds to one of the ground terminals abutting against the upper row of terminals, and each lower spring piece corresponds to one of the ground terminals abutting against the lower row of terminals, thereby achieving a shielding effect.

However, since the elastic sheet is only abutted against the plate surface of the ground terminal, the contact between the elastic sheet and the plate surface of the ground terminal is not firm, and when the elastic sheet is impacted by external force, the shielding piece or the ground terminal is deviated, so that the elastic sheet is separated from the ground terminal, and the elastic sheet cannot be in good contact with the plate surface of the ground terminal, thereby causing poor shielding effect and failing to meet the high-frequency performance of the electric connector.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ Utility model ] content

To the problem that the background art faces, the creation aim at of the utility model is to provide an electric connector that realizes that ground terminal and shielding part stabilize the contact and satisfy high frequency performance.

In order to achieve the above object, the utility model adopts the following technical means:

an electrical connector, comprising: an insulating body; the shielding piece is arranged on the insulating body and comprises an upper shielding piece and a lower shielding piece which are stacked up and down, the upper shielding piece is provided with at least one upper through groove, the upper through groove comprises an upper clamping groove and an upper abdicating groove communicated with the upper clamping groove in the front-back direction, the lower shielding piece is provided with at least one lower through groove vertically corresponding to the at least one upper through groove, the lower through groove comprises a lower clamping groove and a lower abdicating groove communicated with the lower clamping groove in the front-back direction, the lower clamping groove is communicated with the corresponding upper abdicating groove in the up-down direction, and the upper clamping groove is communicated with the corresponding lower abdicating groove in the up-down direction; the shielding piece is positioned between the two rows of terminals, each row of terminals are arranged in the left-right direction and comprise at least one signal terminal and at least one grounding terminal, the grounding terminal in the upper row of terminals is provided with an upper clamping arm extending towards the shielding piece to form, the grounding terminal in the lower row of terminals is provided with a lower clamping arm extending towards the shielding piece to form, the upper clamping arm is inserted into the upper clamping groove and the corresponding lower abdicating groove, the upper clamping arm is fixed with the corresponding upper clamping groove and is arranged at a position separated from the corresponding groove wall of the lower abdicating groove, the lower clamping arm is inserted into the lower clamping groove and the corresponding upper abdicating groove, and the lower clamping arm is fixed with the corresponding lower clamping groove and is arranged at a position separated from the corresponding groove wall of the upper abdicating groove.

Further, the width of the upper abdicating groove in the left-right direction is greater than the width of the upper clamping groove in the left-right direction, and the width of the lower abdicating groove in the left-right direction is greater than the width of the lower clamping groove in the left-right direction.

Further, the insulating body includes a base portion and a mating portion protruding forward relative to the base portion, each of the terminals includes a main body portion and a contact portion extending forward from the main body portion for being connected to a mating connector, the contact portions of the two rows of terminals are exposed on upper and lower opposite surfaces of the mating portion, the upper latch arm is disposed on the main body portion or the contact portion of the upper row of the ground terminals, and the lower latch arm is disposed on the main body portion or the contact portion of the lower row of the ground terminals.

Further, the width of the contact part of the ground terminal in the left-right direction is smaller than the width of the main body part in the left-right direction, the upper clamping arm is formed by stamping the plate surface where the main body part of the ground terminal is located from the upper row, and the lower clamping arm is formed by stamping the plate surface where the main body part of the ground terminal is located from the lower row.

Furthermore, the two rows of terminals are all injection-molded on the butt joint parts, and the plastic forming the butt joint parts fills the upper through grooves and the lower through grooves.

Further, the body portion of the terminal is offset inward in the up-down direction with respect to the contact portion.

Furthermore, each terminal also comprises a bending part which is formed by bending and extending downwards from the rear end of the main body part and is used for being connected with a lead, and the width of the bending part of the grounding terminal in the left-right direction is smaller than that of the main body part in the left-right direction.

Further, the upper shielding plate and the lower shielding plate are respectively located between the main body portions of the two rows of terminals and extend to between the bent portions of the two rows of terminals, the upper shielding plate comprises at least one upper elastic arm, each ground terminal in the upper row of terminals is abutted to one of the upper elastic arms, the lower shielding plate comprises at least one lower elastic arm, each ground terminal in the lower row of terminals is abutted to one of the lower elastic arms, and the upper elastic arm and the lower elastic arm are respectively abutted to the bent portions of the corresponding ground terminals.

Further, the upper spring arm abutting against one of the ground terminals in the upper row of terminals and the lower spring arm abutting against one of the ground terminals in the lower row of terminals are arranged in alignment in the front-rear direction.

Furthermore, the upper elastic arm is formed by integrally extending from one side of the process hole, gaps are respectively formed between the left side and the right side of the upper elastic arm and the corresponding edges of the process hole, and the lower elastic arm is formed by tearing the terminal from the lower shielding plate towards the lower row.

The butt connector comprises an insulating body and is characterized by further comprising a clamping piece arranged on the insulating body, the insulating body further comprises a top wall formed by protruding forwards relative to the base part, the butt joint part is located below the top wall, the clamping piece is provided with two elastic arms contained in the top wall, and each elastic arm is provided with a clamping part protruding upwards and extending out of the top wall and used for clamping the butt connector.

The shielding piece formed by mutually stacking the upper shielding piece and the lower shielding piece is arranged between two rows of terminals, the grounding terminal in the upper row of terminals is provided with an upper clamping arm formed by extending towards the upper shielding piece, the grounding terminal in the lower row of terminals is provided with a lower clamping arm formed by extending towards the lower shielding piece, the upper clamping arm is inserted into the upper clamping groove of the upper shielding piece and is fixed with the upper clamping groove, and the lower clamping arm is inserted into the lower clamping groove of the lower shielding piece and is fixed with the lower clamping groove, so that the risk that the upper clamping arm or the lower clamping arm is separated from the corresponding grounding terminal when external impact occurs is avoided, the stable contact between the grounding terminal and the shielding piece is ensured, and the high-frequency performance of the electric connector is met; in addition, go up the card arm and insert and correspond down the groove of stepping down and with the groove wall in groove of stepping down separates the setting, down the card arm insert correspond go up the groove of stepping down and with the groove wall in groove of stepping down separates the setting, thereby avoids it inserts downwards to go up the card arm receive during the last draw-in groove blocking of shielding piece and influencing down go up the card arm with the stable contact of last draw-in groove, and avoid the card arm upwards inserts down receive during the draw-in groove blocking of going up the shielding piece and influencing down the card arm with the stable contact of draw-in groove down, thereby ensure ground terminal with the stable contact of shielding piece satisfies the operation requirement of electric connector, simultaneously, can reduce the insertion force.

An electrical connector for mating with a mating connector, comprising: the insulating body comprises a base part and a butt joint part which is formed by protruding forwards relative to the base part; the clamping piece is arranged on the insulating body and used for clamping the butting connector; the shielding piece is arranged on the butt joint part and comprises at least one through groove which penetrates through the butt joint part up and down; the shielding piece is positioned between the two rows of terminals, each row of terminals are arranged along the left-right direction and comprise at least one signal terminal and at least one grounding terminal, the grounding terminal in the upper row of terminals is provided with an upper clamping arm extending towards the shielding piece to form, the grounding terminal in the lower row of terminals is provided with a lower clamping arm extending towards the shielding piece to form, and the upper clamping arm and the lower clamping arm are inserted into the through groove and fixed with the groove wall of the through groove.

Further, the shielding piece includes upper shield plate and lower shield plate of piling up from top to bottom, upper shield plate is equipped with at least one and goes up logical groove, lower shield plate be equipped with at least one go up logical groove corresponding and the at least one lower logical groove of intercommunication from top to bottom, go up the card arm and insert go up logical groove and with corresponding the cell wall of going up logical groove is fixed, card arm inserts down logical groove and with corresponding down the cell wall of logical groove is fixed down.

Furthermore, each of the terminals includes a main body portion and a contact portion extending forward from the main body portion for being connected with a mating connector in a conductive manner, the contact portions of the two rows of terminals are exposed on upper and lower opposite surfaces of the mating portion, the upper latch arm is disposed on the main body portion of the upper row of the ground terminals, and the lower latch arm is disposed on the main body portion of the lower row of the ground terminals.

Furthermore, the two rows of terminals are all injection-molded on the butt joint parts, and the through grooves are filled with plastic for molding the butt joint parts.

Further, the electrical connector further includes a plurality of wires, each of the terminals further includes a main body portion and a bent portion formed by bending and extending downward from a rear end of the main body portion, each of the bent portions is fixed to one of the wires, the shielding member is located between the main body portions of the two rows of terminals and extends to between the bent portions of the two rows of terminals, the shielding member includes at least one upper elastic arm and at least one lower elastic arm which are oppositely arranged in a front-rear direction, each of the ground terminals in the upper row of terminals is abutted to one of the upper elastic arms, and each of the ground terminals in the lower row of terminals is abutted to one of the lower elastic arms.

Furthermore, the insulating body further comprises a top wall formed by protruding forwards relative to the base part, the butt joint part is located below the top wall, the buckling piece is provided with two elastic arms contained in the top wall, and each elastic arm is provided with a buckling part protruding upwards and extending out of the top wall and used for buckling the butt joint connector.

Furthermore, an accommodating groove is formed by forward concave arrangement of the rear end of the insulating body, the buckling piece is installed in the accommodating groove from back to front, the buckling piece comprises a pressing portion arranged on the base portion and fixing portions formed by respectively extending from the left side and the right side of the pressing portion, the fixing portions are fixed with the base portion in an interference mode, a gap is formed between the pressing portion and the bottom wall of the accommodating groove and used for downward movement, and the elastic arm is formed by forward extending from the front end of the pressing portion and located between the two fixing portions in the left-right direction.

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

the upper clamping arm formed by extending towards the shielding piece is arranged on the grounding terminal in the upper row of terminals, the lower clamping arm formed by extending towards the shielding piece is arranged on the grounding terminal in the lower row of terminals, the upper clamping arm and the lower clamping arm are inserted into the through groove of the shielding piece between the two rows of terminals and are fixed with the through groove, the risk that the upper clamping arm or the lower clamping arm is separated from the corresponding grounding terminal when external force impact occurs is avoided, stable contact between the grounding terminal and the shielding piece is ensured, and the high-frequency performance of the electric connector is met.

[ description of the drawings ]

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

FIG. 2 is a perspective assembly view of the electrical connector of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 4 is a schematic view of the rear cover, the terminal base and the wire of fig. 3 before being assembled to the housing;

fig. 5 is an exploded perspective view of the terminal block of fig. 1;

FIG. 6 is an enlarged partial top view of C of FIG. 5;

fig. 7 is an exploded perspective view of the two rows of terminals and shields of fig. 5;

fig. 8 is a perspective cross-sectional view of the two rows of terminals and shields of fig. 7 in combination;

fig. 9 is a front view of fig. 8.

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

electrical connector 100	Insulating body 1	Housing 10	Base 11
				Top wall 12	Accommodating cavity 13	Receiving groove 14	Side plate 15
Terminal base 20	Base 20A	Butt joint part 20B	Insulating block 21
				Fastening part 211	Fastening slot 212	Insulating member 22	Rear cover 30
Terminal 4	Signal terminal 4a	Ground terminal 4b	Main body 41
				Contact part 42	Bent part 43	Upper latch arm 44	Lower clip arm 45
Shielding 5	Upper shield plate 51	Upper horizontal segment 511	Upper bending section 512
				Upper through groove 513	Upper card slot 513a	Upper abdicating groove 513b	Upper spring arm 514
Fabrication hole 515	Upper slot 516	Lower shield plate 52	Lower horizontal segment 521
				Lower bend 522	Lower through groove 523	Lower card slot 523a	Lower abdicating groove 523b
Lower elastic arm 524	Lower slot 525	Conducting wire 6	Fastener 8
				Pressing part 81	Fixed part 82	Elastic arm 83	Fastening part 831
Inner module 9

[ detailed description ] embodiments

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

As shown in fig. 1 and 2, the utility model discloses an electric connector 100 is used for docking with a docking connector, electric connector 100 includes insulator 1, locates a plurality of terminals 4 and a shielding part 5 of insulator 1, with a plurality of terminal 4 electric connection's a plurality of wires 6, locate insulator 1's a buckle 8 and cladding are in wire 6 with an interior module 9 of terminal 4 junction, the convenience is to the understanding of the drawing, forward direction is the positive direction of X axle in the definition fore-and-aft direction, and right direction is the positive direction of Y axle in the left and right direction, and upward direction is the positive direction of Z axle in the upper and lower direction.

As shown in fig. 1, the insulative housing 1 includes a housing 10, a terminal block 20 forwardly inserted into the housing 10, and a rear cover 30 mounted to a rear end of the housing 10.

As shown in fig. 1 and 2, the housing 10 has a base 11, a top wall 12 formed by respectively projecting forward from the base 11, and two side plates 15, the two side plates 15 are located on the left and right sides of the top wall 12, a receiving groove 14 and a receiving cavity 13 are respectively formed by recessed forward from the rear end of the base 11, the receiving groove 14 extends to the top wall 12 and penetrates through the top wall 12 up and down, the receiving cavity 13 penetrates forward the base 11 and is located below the top wall 12, the receiving cavity 13 is located below the receiving groove 14 and is spaced apart from the receiving groove 14, and the receiving cavity 13 and the receiving groove 14 are located between the two side plates 15 in the left and right direction.

As shown in fig. 1, 3 and 4, the terminal block 20 includes a base 20A and a mating portion 20B extending forward from the base 20A, the terminal block 20 is inserted into the housing 10, the base 20A is fixed in the receiving cavity 13, the mating portion 20B projects forward out of the base 11 and is located between the two side plates 15, the mating portion 20B is located below the top wall 12, and front ends of the mating portion 20B are located behind front ends of the top wall 12 and front ends of the side plates 15, respectively.

As shown in fig. 1, 3 and 4, the rear cover 30 is mounted on the base 11 and located behind the base 20A to cover the terminal block 20.

As shown in fig. 1, 4 and 5, the terminal base 20 is composed of two insulating blocks 21 and an insulating member 22 injection-molded to the two insulating blocks 21, the insulating blocks 21 are substantially "L" shaped, one of the insulating blocks 21 is provided with a plurality of buckling parts 211, the other insulating block 21 is provided with a plurality of buckling grooves 212, the fastening portion 211 and the fastening groove 212 are both arranged in a "T" shape, the fastening groove 212 is formed by upward concave arrangement from the bottom end of the corresponding insulating block 21, the fastening parts 211 are assembled in the fastening grooves 212 from bottom to top and fastened to each other in the front-rear direction, fixing the two insulation blocks 21 to each other, injecting resin outside the two insulation blocks 21, cooling the resin to form the insulation member 22 covering the two insulation blocks 21, that is, the two insulating blocks 21 and the insulating material 22 constitute the base 20A and the abutting portion 20B.

As shown in fig. 1 and 6, the terminals 4 are formed by press-molding a metal plate, in this embodiment, the terminals 4 are arranged in two rows, each row of the terminals 4 is arranged in the left-right direction, and each row of the terminals 4 is injection-molded on one of the insulating blocks 21.

As shown in fig. 4 and 5, each of the terminals 4 includes a main body 41, a contact portion 42 extending forward from the main body 41, and a bent portion 43 extending downward from the rear end of the main body 41, the bent portion 43 is used for connecting with one of the wires 6, and the connection between the bent portion 43 and the wire 6 is covered by the inner module 9 through injection molding. The contact portions 42 of the two rows of terminals 4 are exposed on two upper and lower opposite surfaces of the mating portion 20B for being electrically connected to a mating connector, that is, the contact portions 42 of the upper row of terminals 4 are exposed on an upper surface of the mating portion 20B, the contact portions 42 of the lower row of terminals 4 are exposed on a lower surface of the mating portion 20B, the main body portions 41 of the two rows of terminals 4 are shifted inward in the vertical direction relative to the contact portions 42, and the main body portions 41 are hidden by the terminal holder 20 without being exposed, that is, the distance in the vertical direction between the main body portions 41 of the two rows of terminals 4 is smaller than the distance in the vertical direction between the contact portions 42 of the two rows of terminals 4.

As shown in fig. 7 and 9, each row of the terminals 4 includes a plurality of signal terminals 4a and a plurality of ground terminals 4b, the signal terminals 4a in two rows of the terminals 4 are disposed corresponding to each other vertically and the ground terminals 4b are disposed corresponding to each other vertically, wherein two adjacent signal terminals 4a form a differential signal terminal pair for transmitting differential signals, one ground terminal 4b is respectively disposed on the left and right sides of the differential signal terminal pair, the width of the contact portion 42 of the ground terminal 4b in the left-right direction and the width of the bent portion 43 in the left-right direction are both smaller than the width of the main body portion 41 in the left-right direction, in this embodiment, the plate surface of the main body portion 41 of the upper row of the ground terminals 4b faces the terminal 4 to be stamped with an upper clamping arm 44, and the plate surface of the main body portion 41 of the lower row of the ground terminal 4b faces the upper row of the terminal 4 to be stamped with a lower clamping arm 45, the upper latch arms 44 and the lower latch arms 45 of the upper and lower opposite ground terminals 4b are aligned front and back, and in this embodiment, the upper latch arms 44 are located behind the corresponding lower latch arms 45. In other embodiments, the upper and lower catching

arms

44 and 45 may be formed by extending from the contact portion 42 of the corresponding ground terminal 4b, or may be formed by extending from the bent portion 43 of the corresponding ground terminal 4b, and the upper catching arm 44 may be located in front of the corresponding lower catching arm 45.

As shown in fig. 7, 8 and 9, the shielding element 5 is located between two rows of the terminals 4, the shielding element 5 is sandwiched between two insulating blocks 21, the shielding element 5 includes an upper shielding plate 51 and a lower shielding plate 52 stacked up and down, and the upper shielding plate 51 and the lower shielding plate 52 are respectively formed by punching and molding a metal plate.

As shown in fig. 6, 7 and 9, the upper shielding plate 51 includes an upper horizontal section 511 and an upper bending section 512 formed by bending and extending downward from the rear end of the upper horizontal section 511, the upper horizontal section 511 is located between the main body portions 41 of two rows of the terminals 4 and between the contact portions 42 in the up-down direction, and the upper bending section 512 is located between the bending portions 43 of two rows of the terminals 4 in the front-back direction.

As shown in fig. 6, 7 and 9, go up horizontal segment 511 and be equipped with a plurality of logical grooves 513 of going up that run through from top to bottom, it is a plurality of go up logical groove 513 and set up in rows along left right direction, it is a plurality of go up logical groove 513 and go up a plurality of in the terminal 4 ground terminal 4b one-to-one sets up, go up logical groove 513 includes an last draw-in groove 513a and communicates in the front and back direction go up draw-in groove 513a go up draw-in groove 513b, go up draw-in groove 513a be located go up the rear of draw-in groove 513b, the width of going up draw-in groove 513b in the left and right direction is greater than go up draw-in groove 513a width in the left and right direction.

As shown in fig. 6, 7 and 9, a plurality of upper elastic arms 514 are stamped from the bent portions 43 of the upper bent portions 512 corresponding to the plurality of ground terminals 4b in the upward row of the terminals 4, a process hole 515 is formed at a position where the upper bent portions 512 stamp the upper elastic arms 514, the upper elastic arms 514 are integrally formed by extending from one of upper and lower sides of the process hole 515, gaps are respectively formed between the left and right sides of the upper elastic arms 514 and the corresponding edges of the process hole 515, and in this embodiment, the upper elastic arms 514 are connected to the lower sides of the corresponding process holes 515. The upper bending portion 512 further includes an upper slot 516 located between the two upper elastic arms 514, and the upper slot 516 is formed by upwardly recessing the bottom end of the upper bending portion 512.

As shown in fig. 6, 7 and 9, the lower shielding plate 52 includes a lower horizontal section 521 and a lower bent section 522 bent and extended downward from the rear end of the lower horizontal section 521, the lower horizontal section 521 is located between the main body portions 41 of the two rows of the terminals 4 and between the contact portions 42 in the vertical direction, and the lower bent section 522 is located between the bent portions 43 of the two rows of the terminals 4 in the front-rear direction.

As shown in fig. 6, 7 and 9, the lower horizontal segment 521 is equipped with a plurality of go up a plurality of lower logical grooves 523 that lead to groove 513 one-to-one from top to bottom, it is a plurality of lead to groove 523 along left and right directions setting in a row, each down lead to groove 523 include draw-in groove 523a and communicate in the front and back direction draw down groove 523 a's a groove 523b of stepping down, draw-in groove 523a is located down the place ahead of groove 523b of stepping down, the width of groove 523b in the left and right directions is greater than down draw-in groove 523a width in the left and right directions, draw-in groove 523a down with the correspondence go up groove 513b and intercommunication in the up and down directions, go up draw-in groove 513a and the correspondence down groove 523b communicates each other in the up and down directions. The upper yielding groove 513b extends forward beyond the lower slot 523a, and the lower yielding groove 523b extends rearward beyond the upper slot 513 a. In the present embodiment, the upper through groove 513 and the corresponding communicated lower through groove 523 together define a through groove.

As shown in fig. 5 and 7, a plurality of lower resilient arms 524 are formed by tearing from the lower bending section 522 toward the bending portion 43 of the plurality of ground terminals 4b in the terminal 4, the lower bending section 522 is provided with a lower slot 525 located between every two lower resilient arms 524, the lower slot 525 is formed by upwardly recessing from the bottom end of the lower bending section 522, the plurality of lower slots 525 and the plurality of upper slots 516 are aligned one by one in the front-rear direction, and the fastening portion 211 passes through the upper slot 516 and the lower slot 525 in the front-rear direction.

As shown in fig. 4, 6 and 7, the upper clamping arm 44 is inserted into the corresponding upper clamping groove 513a and the corresponding lower yielding groove 523b, the upper clamping arm 44 is fixed to the corresponding upper clamping groove 513a and is disposed at a distance from the groove wall of the corresponding lower yielding groove 523b, that is, the width of the upper clamping arm 44 in the left-right direction is smaller than the width of the lower yielding groove 523b in the left-right direction, the lower clamping arm 45 is inserted into the lower clamping groove 523a and the corresponding upper yielding groove 513b, the lower clamping arm 45 is fixed to the corresponding lower clamping groove 523a and is disposed at a distance from the groove wall of the corresponding upper yielding groove 513b, that is, the width of the lower clamping arm 45 in the left-right direction is smaller than the width of the upper yielding groove 513b in the left-right direction, the upper clamping arm 44 and the lower clamping arm 45 of the two ground terminals 4b opposite to each other are fixed to the same through groove, the plastic forming the insulator 22 fills the upper through-groove 513 and the lower through-groove 523.

As shown in fig. 7 and 9, each of the upper resilient arms 514 abuts rearward against one of the bent portions 43 of the upper row of the ground terminals 4b, each of the lower resilient arms 524 abuts forward against one of the bent portions 43 of the lower row of the ground terminals 4b, and the upper resilient arm 514 abutting against one of the bent portions 43 of the upper row of the ground terminals 4b and the lower resilient arm 524 abutting against one of the bent portions 43 of the lower row of the ground terminals 4b are aligned in the front-rear direction.

As shown in fig. 1, 3 and 4, the plurality of wires 6 are arranged in two front and rear rows, wherein one row of the wires 6 is located at the rear side of the upper row of the bent portions 43, the other row of the wires 6 is located at the front side of the lower row of the bent portions 43, and each wire 6 is welded to the corresponding bent portion 43.

As shown in fig. 1 and 4, the locking member 8 is formed by press-molding a metal plate and is inserted forward into the receiving groove 14. The fastener 8 includes a pressing portion 81, a fixing portion 82 formed by extending from the left and right sides of the pressing portion 81, and two elastic arms 83 extending forward from the front end of the pressing portion 81, the two elastic arms 83 are located between the two fixing portions 82 in the left and right directions, the fastening portion 831 is located in front of the fixing portion 82, the pressing portion 81 is received in the receiving slot 14, a gap is formed between the pressing portion 81 and the bottom wall of the receiving slot 14 for the pressing portion to move downward, the fixing portion 82 is fixed to the base portion 11 in an interference manner, the two elastic arms 83 are received in the top wall 12, and each elastic arm 83 is provided with a fastening portion 831 protruding upward from the top wall 12 for fastening the mating connector.

As shown in fig. 1, 3 and 4, the bent portions 43, the leads 6 and the base 20A are all injection molded on the inner module 9 to be fixed to each other.

As shown in fig. 1, 2 and 4, the molding process of the electrical connector 100: two rows of the terminals 4 are respectively injection-molded to a corresponding one of the insulating blocks 21; stacking the upper shielding sheet 51 and the lower shielding sheet 52 together, and clamping the upper shielding sheet and the lower shielding sheet by the two insulating blocks 21, wherein the two insulating blocks 21 are buckled with each other along the vertical direction; then, the two insulating blocks 21, the two rows of terminals 4, the upper shielding sheets 51 and the lower shielding sheets 52 are injection-molded on the insulating member 22; then, the leads 6 are soldered to the bent portions 43 in a one-to-one correspondence; then, the inner module 9 is injection molded outside the terminal base 20 and the lead 6; then the fastener 8 is inserted into the housing 10 forward; finally, the rear cover 30 is assembled to the housing 10.

To sum up, the utility model discloses electric connector has following beneficial effect:

(1) the shield 5 formed by stacking the upper shield plate 51 and the lower shield plate 52 one on top of the other is disposed between two rows of the terminals 4, the ground terminal 4b in the upper row of the terminals 4 is provided with the upper catching arm 44 formed to extend toward the upper shield plate 51, the ground terminal 4b in the lower row of the terminals 4 is provided with the lower catching arm 45 formed to extend toward the lower shield plate 52, the upper catching arm 44 is inserted into the upper catching groove 513a of the upper shield plate 51 and fixed to the upper catching groove 513a, the lower catching arm 45 is inserted into the lower catching groove 523a of the lower shield plate 52 and fixed to the lower catching groove 523a, so as to avoid a risk that the upper catching arm 44 or the lower catching arm 45 is separated from the corresponding ground terminal 4b when an external force impact occurs and to ensure a stable contact between the ground terminal 4b and the shield 5, the high-frequency performance of the electrical connector 100 is satisfied; in addition, go up card arm 44 insert the correspondence down the groove 523b of stepping down and with the groove wall of groove 523b of stepping down separates the setting, lower card arm 45 insert the correspondence go up step 513b and with the groove wall of last step 513b separates the setting, thereby avoids go up card arm 44 inserts downwards receive during going up card groove 513a blocking of lower shielding piece 52 and influence go up card arm 44 with the stable contact of last card groove 513a, and avoid lower card arm 45 upwards inserts receive during lower card groove 523a blocking of last shielding piece 51 and influence lower card arm 45 with the stable contact of card groove 523a down, thereby ensure ground terminal 4b with the stable contact of shielding piece 5 satisfies the operation requirement of electric connector 100, simultaneously, can reduce the insertion force.

(2) Ground terminal 4b the width of contact site 42 in the left and right directions is less than the width of main part 41 in the left and right directions, go up card arm 44 from the top row ground terminal 4b the punch forming of main part 41 place face, lower card arm 45 is from the bottom row ground terminal 4b the punch forming of main part 41 place face does benefit to go up card arm 44 or card arm 45 is from corresponding down the punch forming of the face that main part 41 was located, avoid because the width of main part 41 is too little to realize go up card arm 44 with the stamping process of card arm 45 down.

(3) The two rows of terminals 4 are injection molded on the abutting portion 20B, and the plastic forming the abutting portion 20B fills the upper through groove 513 and the lower through groove 523, so that the upper shielding plate 51 and the lower shielding plate 52 are conveniently fixed together, and the upper clamping arm 44 and the lower clamping arm 45 are fixed to corresponding clamping grooves.

(4) The main body 41 of the terminal 4 is offset inward in the vertical direction relative to the contact portion 42, so that after the contact portion 42 abuts against a mating connector, other conductors are prevented from being scraped to the main body 41 to cause short circuit, the height of the mating portion 20B is not increased for shielding the main body 41, the distance between the signal terminal 4a and the shield 5 is reduced, and the shield 5 is beneficial to shielding signal interference on the signal terminal 4 a.

(5) The upper shield plate 51 includes at least one of the upper elastic arms 514, each of the ground terminals 4b of the upper row of terminals 4 abuts against one of the upper elastic arms 514, the lower shield plate 52 includes at least one of the lower elastic arms 524, and each of the ground terminals 4b of the lower row of terminals 4 abuts against one of the lower elastic arms 524, so that two contact points exist between each of the ground terminals 4b and the corresponding shield plate, which is beneficial to reduce resonance and meet high frequency requirements.

(6) Go up to bounce the arm 514 from go up the shield plate 51 and arrange towards last 4 stamping forming of terminal, it corresponds to go up the shield plate 51 the position of bouncing the arm 514 is equipped with the fabrication hole 515, it from to go up to bounce the arm 514 one side body extension of fabrication hole 515 forms, go up to bounce the left and right sides of arm 514 respectively with correspond the fabrication hole 515 edge has the clearance, bounce the arm 524 certainly down shield plate 52 is arranged towards lower row 4 tear shaping, the shaping earlier unloading then bend when going up to bounce the arm 514, do benefit to the defective rate that reduces the product.

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;

the shielding piece is arranged on the insulating body and comprises an upper shielding piece and a lower shielding piece which are stacked up and down, the upper shielding piece is provided with at least one upper through groove, the upper through groove comprises an upper clamping groove and an upper abdicating groove communicated with the upper clamping groove in the front-back direction, the lower shielding piece is provided with at least one lower through groove vertically corresponding to the at least one upper through groove, the lower through groove comprises a lower clamping groove and a lower abdicating groove communicated with the lower clamping groove in the front-back direction, the lower clamping groove is communicated with the corresponding upper abdicating groove in the up-down direction, and the upper clamping groove is communicated with the corresponding lower abdicating groove in the up-down direction;

the shielding piece is positioned between the two rows of terminals, each row of terminals are arranged in the left-right direction and comprise at least one signal terminal and at least one grounding terminal, the grounding terminal in the upper row of terminals is provided with an upper clamping arm extending towards the shielding piece to form, the grounding terminal in the lower row of terminals is provided with a lower clamping arm extending towards the shielding piece to form, the upper clamping arm is inserted into the upper clamping groove and the corresponding lower abdicating groove, the upper clamping arm is fixed with the corresponding upper clamping groove and is arranged at a position separated from the corresponding groove wall of the lower abdicating groove, the lower clamping arm is inserted into the lower clamping groove and the corresponding upper abdicating groove, and the lower clamping arm is fixed with the corresponding lower clamping groove and is arranged at a position separated from the corresponding groove wall of the upper abdicating groove.

2. The electrical connector of claim 1, wherein: the width of the upper abdicating groove in the left-right direction is greater than the width of the upper clamping groove in the left-right direction, and the width of the lower abdicating groove in the left-right direction is greater than the width of the lower clamping groove in the left-right direction.

3. The electrical connector of claim 1, wherein: the insulating body comprises a base part and a butt-joint part which is formed by protruding forwards relative to the base part, each terminal comprises a main body part and a contact part which is formed by extending forwards from the main body part and is used for being in conductive connection with a butt-joint connector, the contact parts of two rows of terminals are exposed on the upper surface and the lower surface of the butt-joint part, the upper clamping arm is arranged on the main body part or the contact part of the upper row of grounding terminals, and the lower clamping arm is arranged on the main body part or the contact part of the lower row of grounding terminals.

4. The electrical connector of claim 3, wherein: the width of the contact part of the grounding terminal in the left-right direction is smaller than that of the main body part in the left-right direction, the upper clamping arm is arranged from the upper row of the plate surface of the main body part of the grounding terminal in a stamping mode, and the lower clamping arm is arranged from the lower row of the plate surface of the main body part of the grounding terminal in a stamping mode.

5. The electrical connector of claim 3, wherein: and the two rows of terminals are all injection-molded at the butt joint parts, and the plastic forming the butt joint parts fills the upper through grooves and the lower through grooves.

6. The electrical connector of claim 3, wherein: the body portion of the terminal is offset inward in the up-down direction with respect to the contact portion.

7. The electrical connector of claim 3, wherein: each terminal also comprises a bending part which is formed by bending and extending downwards from the rear end of the main body part and is used for being connected with a lead, and the width of the bending part of the grounding terminal in the left-right direction is smaller than that of the main body part in the left-right direction.

8. The electrical connector of claim 7, wherein: the upper shielding plate and the lower shielding plate are respectively positioned between the main body parts of the two rows of terminals and extend to between the bent parts of the two rows of terminals, the upper shielding plate comprises at least one upper elastic arm, each grounding terminal in the upper row of terminals is abutted to one of the upper elastic arms, the lower shielding plate comprises at least one lower elastic arm, each grounding terminal in the lower row of terminals is abutted to one of the lower elastic arms, and the upper elastic arm and the lower elastic arm are respectively abutted to the bent parts of the corresponding grounding terminals.

9. The electrical connector of claim 8, wherein: the upper spring arm abutting against one of the ground terminals of the upper row of terminals and the lower spring arm abutting against one of the ground terminals of the lower row of terminals are arranged in alignment in the front-rear direction.

10. The electrical connector of claim 8, wherein: the upper spring arm is formed by integrally extending the upper spring arm from one side of the fabrication hole, gaps are respectively arranged on the left side and the right side of the upper spring arm and the corresponding edges of the fabrication hole, and the lower spring arm is formed by tearing the terminal from the lower shield plate towards the lower row.

11. The electrical connector of claim 3, wherein: the butt connector comprises an insulating body and is characterized by further comprising a clamping piece arranged on the insulating body, the insulating body further comprises a top wall formed by protruding forwards relative to the base part, the butt joint part is located below the top wall, the clamping piece is provided with two elastic arms contained in the top wall, and each elastic arm is provided with a clamping part protruding upwards and extending out of the top wall and used for clamping the butt connector.

12. An electrical connector for mating with a mating connector, comprising:

the insulating body comprises a base part and a butt joint part which is formed by protruding forwards relative to the base part;

the clamping piece is arranged on the insulating body and used for clamping the butting connector;

the shielding piece is arranged on the butt joint part and comprises at least one through groove which penetrates through the butt joint part up and down;

the shielding piece is positioned between the two rows of terminals, each row of terminals are arranged along the left-right direction and comprise at least one signal terminal and at least one grounding terminal, the grounding terminal in the upper row of terminals is provided with an upper clamping arm extending towards the shielding piece to form, the grounding terminal in the lower row of terminals is provided with a lower clamping arm extending towards the shielding piece to form, and the upper clamping arm and the lower clamping arm are inserted into the through groove and fixed with the groove wall of the through groove.

13. The electrical connector of claim 12, wherein: the shielding piece includes from top to bottom piles up one and goes up the shielding piece and shielding piece once, it is equipped with at least one and goes up logical groove to go up the shielding piece, down the shielding piece be equipped with at least one go up logical groove from top to bottom correspond and the at least one of intercommunication lead to the groove down, go up the card arm and insert go up logical groove and with corresponding the cell wall of going up logical groove is fixed, card arm inserts down lead to the groove and with corresponding down the cell wall of logical groove is fixed down.

14. The electrical connector of claim 12, wherein: each terminal comprises a main body part and a contact part which extends forwards from the main body part and is used for being connected with a butting connector in a guiding mode, the contact parts of the two rows of terminals are exposed on the upper surface and the lower surface of the butting part, the upper clamping arm is arranged on the main body part of the upper row of the grounding terminals, and the lower clamping arm is arranged on the main body part of the lower row of the grounding terminals.

15. The electrical connector of claim 14, wherein: the width of the contact part of the grounding terminal in the left-right direction is smaller than that of the main body part in the left-right direction, the upper clamping arm is arranged from the upper row of the plate surface of the main body part of the grounding terminal in a stamping mode, and the lower clamping arm is arranged from the lower row of the plate surface of the main body part of the grounding terminal in a stamping mode.

16. The electrical connector of claim 14, wherein: the body portion of the terminal is offset inward in the up-down direction with respect to the contact portion.

17. The electrical connector of claim 12, wherein: and the two rows of terminals are all injection-molded at the butt joint parts, and the through grooves are filled with the plastic for molding the butt joint parts.

18. The electrical connector of claim 12, wherein: the terminal comprises a main body part and a bent part which is formed by bending and extending downwards from the rear end of the main body part, wherein each bent part is fixed with one of the wires, the shielding part is positioned between the main body parts of the two rows of terminals and extends to the bent parts of the two rows of terminals, the shielding part comprises at least one upper elastic arm and at least one lower elastic arm which are oppositely arranged in the front and rear direction, each grounding terminal in the upper row of terminals is abutted against one of the upper elastic arms, and each grounding terminal in the lower row of terminals is abutted against one of the lower elastic arms.

19. The electrical connector of claim 12, wherein: the insulating body further comprises a top wall formed by protruding forwards relative to the base part, the butt joint part is located below the top wall, the clamping piece is provided with two elastic arms contained in the top wall, and each elastic arm is provided with a clamping part protruding upwards and extending out of the top wall and used for clamping the butt joint connector.

20. The electrical connector of claim 19, wherein: the clamping piece is arranged in the accommodating groove from back to front in a concave mode, the clamping piece comprises a pressing portion arranged on the base portion and fixing portions formed by extending the left side and the right side of the pressing portion respectively, the fixing portions and the base portion are fixed in an interference mode, a gap is formed between the pressing portion and the bottom wall of the accommodating groove and used for the pressing portion to move downwards, and the elastic arm extends forwards from the front end of the pressing portion and is located between the two fixing portions in the left-right direction.