CN213151080U - Electric connector assembly and electric connector assembly - Google Patents

Abstract

An electrical connector assembly includes an electrical connector and a metal shielding shell. The electric connector comprises an insulating body and a plurality of conductive terminals. The insulating body is provided with a slot, and the conductive terminal comprises an elastic abutting part which is used for abutting against the circuit board. The metal shielding shell comprises an accommodating cavity communicated with the slot, the accommodating cavity is located at the front end of the slot, and the slot and the accommodating cavity are used for accommodating a butting connector. The utility model discloses still relate to an electric connector assembly including above-mentioned electric connector component. Compared with the prior art, when the butting connector is inserted and is not contacted with the conductive terminal of the electric connector, a better shielding environment can be provided through the metal shielding shell; additionally, the utility model discloses a conductive terminal carries out electric connection through the mode of mutual butt with the circuit board, has reduced the requirement to circuit board processing procedure complexity.

Description

Electric connector assembly and electric connector assembly

Technical Field

The utility model relates to an electric connector subassembly and electric connector subassembly belongs to electric connector technical field.

Background

An electrical connector generally includes a housing and a plurality of conductive terminals fixed to the housing. The conductive terminal comprises a contact part used for contacting with the butting connector and a mounting pin used for being mounted on the circuit board. The connection of the mounting pins to the circuit board generally includes through-hole soldering, surface soldering, and crimping. However, as the transmission rate of the electrical connector is required to be higher, the connection of the mounting pins to the circuit board is greatly challenged. In addition, how to arrange the shielding structure to reduce the interference to the signal transmission is also a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a better and easily realize installing electric connector in the electric connector subassembly and the electric connector combination piece of circuit board of shielding effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrical connector assembly, comprising:

the electric connector comprises an insulating body and a plurality of conductive terminals fixed on the insulating body; the insulation body is provided with a slot and a mounting surface for mounting on a circuit board; the conductive terminal comprises an elastic contact part protruding into the slot and an elastic abutting part extending towards the direction of the mounting surface, the elastic contact part is used for contacting with the butting connector, and the elastic abutting part is used for abutting against the circuit board; and

the metal shielding shell is covered on the electric connector and comprises an accommodating cavity communicated with the slot, the accommodating cavity is located at the front end of the slot, and the slot and the accommodating cavity are used together for accommodating the butting connector.

As a further improved technical solution of the present invention, the metal shielding shell is provided with a first side edge, a plurality of first mounting feet protruding from the first side edge, a second side edge, and a plurality of second mounting feet protruding from the second side edge, wherein the first side edge and the second side edge are respectively located at two sides of the metal shielding shell; the first mounting feet and the second mounting feet are arranged in a staggered mode along the width direction perpendicular to the butt joint direction.

As a further improved technical solution of the present invention, the first mounting leg is provided with a first through hole so as to make the first mounting leg elastic, so as to be pressed into the first conductive hole of the circuit board;

the second mounting leg is provided with a second through hole so that the second mounting leg has elasticity so as to be pressed into a second conductive hole of the circuit board.

As a further improved technical solution of the present invention, the metal shielding shell is provided with a plurality of first fastening legs protruding from the first side edge and a plurality of second fastening legs protruding from the second side edge, wherein the first fastening legs and the second fastening legs are arranged in a staggered manner along a width direction perpendicular to the butt joint direction; the first buckling and holding foot is provided with a first barb, the second buckling and holding foot is provided with a second barb, the first barb is used for being inserted into a first locking hole of the circuit board and fixed with the circuit board, and the second barb is used for being inserted into a second locking hole of the circuit board and fixed with the circuit board.

As a further improved technical solution of the present invention, along the first side edge, at least part of the first mounting legs and the first retaining legs are alternately arranged; at least some of the second mounting feet alternate with the second retaining feet along the second side edge.

As a further improved technical scheme of the utility model, insulator is equipped with the installation wall, the installation face is located on the installation wall, the installation wall still is equipped with the fluting that a plurality of intervals set up, elasticity butt portion runs through the fluting is in order to extend the installation face.

As a further improved technical solution of the present invention, the metal shielding case includes a top wall, a bottom wall, and a connection, the top wall with the first side wall and the connection of one side of the bottom wall the top wall with the second side wall of the other side of the bottom wall, the accommodation cavity by the top wall the bottom wall the first side wall and the second side wall form around together.

As a further improved technical scheme of the present invention, the metal shielding shell is provided with an insertion surface and an opening exposed on the insertion surface; the electrical connector includes a light guide extending to the aperture.

As the utility model discloses further modified technical scheme is located in the slot the elastic contact portion is two rows, and these two rows the common centre gripping part of elastic contact portion butt joint connector.

As a further improved technical scheme of the utility model, the elasticity butt portion protrusion the installation face.

As a further improved technical solution of the present invention, the conductive terminal further includes a connection portion connected between the elastic contact portion and the elastic abutting portion, the connection portion is bent.

As a further improved technical solution of the present invention, the conductive terminal further includes a connection between the elastic contact portion and a first extension portion between the connection portions and a connection between the connection portions and a second extension portion between the elastic abutting portion, an extending direction of the first extension portion is perpendicular to an extending direction of the second extension portion, and an extending direction of the elastic abutting portion is perpendicular to an extending direction of the second extension portion.

As a further improved technical solution of the present invention, the elastic abutting portion extends in a direction away from the elastic contact portion and is parallel to each other.

As a further improved technical solution of the present invention, the elastic abutting portion and the elastic abutting portion of the circuit board are provided.

As a further improved technical solution of the present invention, the circuit board includes a first surface facing the electrical connector assembly and a second surface opposite to the first surface, and the first locking hole penetrates through the first surface; the circuit board further comprises a counterbore penetrating through the second surface, and the counterbore is communicated with the first locking hole; the circuit board forms a locking surface at the joint of the reaming hole and the first locking hole, and the first barb is buckled on the locking surface.

As a further improved technical scheme of the utility model, first barb does not bulge the second surface.

The utility model discloses still relate to an electric connector assembly, it includes:

a first electrical connector assembly, the first electrical connector assembly being the aforementioned electrical connector assembly;

a second electrical connector; and

the circuit board is provided with a first side, a plurality of first conducting strips positioned on the first side, a second side opposite to the first side and a plurality of second conducting strips positioned on the second side; wherein

The first electric connector assembly is arranged on the first side of the circuit board and is abutted against the first conducting strip, and the second electric connector is arranged on the second side of the circuit board and is electrically connected with the second conducting strip.

Compared with the prior art, the utility model discloses a metal shielding shell is equipped with the chamber of acceping that is located the slot front end, insert and not yet with when butt connector the utility model discloses when electric connector's conductive terminal realizes the contact, just can provide better shielding environment through metal shielding shell, improved follow-up signal transmission's quality. Additionally, the utility model discloses electric connector's conductive terminal is equipped with the elasticity butt portion for with circuit board looks butt, and the two carries out electric connection through the mode of mutual butt, has reduced the requirement to circuit board processing procedure complexity.

Drawings

Fig. 1 is a schematic perspective view of the electrical connector assembly of the present invention mounted on a circuit board.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is a bottom view of fig. 1.

Fig. 5 is a partially exploded perspective view of fig. 1.

Fig. 6 is a partial exploded perspective view of fig. 5 at another angle.

Fig. 7 is a partially exploded perspective view of the electrical connector assembly of fig. 6 and a portion of a mating connector.

Fig. 8 is an exploded perspective view of the electrical connector of fig. 7 and a portion of a mating connector.

Fig. 9 is an exploded perspective view of fig. 8 from another angle.

Fig. 10 is a right side view of the electrical connector of fig. 9.

Fig. 11 is a top view of the electrical connector of fig. 9.

Fig. 12 is a partially exploded perspective view of the electrical connector of fig. 8.

Fig. 13 is a further exploded perspective view of fig. 7.

Fig. 14 is an exploded perspective view of fig. 13 from another angle.

Fig. 15 is a schematic sectional view taken along line a-a in fig. 4.

Fig. 16 is a schematic sectional view taken along line B-B in fig. 4.

Fig. 17 is a front view of the electrical connector assembly of the present invention.

Fig. 18 is a partially enlarged view of a picture frame portion C in fig. 17.

Fig. 19 is a partially enlarged view of circled portion D in fig. 15.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The description set forth below in the exemplary detailed description does not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as recited in the claims of the invention.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in the specification and claims of this application, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model discloses in appear "a plurality of", its meaning indicates two and more than two.

Referring to fig. 1 to 3, the present invention discloses an electrical connector assembly 100 for mounting on a circuit board 200. Referring to fig. 4 to 6, in the illustrated embodiment of the present invention, the circuit board 200 includes a plurality of first conductive holes 201 and a plurality of first locking holes 202 located on one side (e.g., the right side in fig. 4), and a plurality of second conductive holes 203 and a plurality of second locking holes 204 located on the other side (e.g., the left side in fig. 4), wherein two first conductive holes 201 and two first locking holes 202 located at the rear end are alternately arranged, and two second conductive holes 203 and two second locking holes 204 located at the rear end are alternately arranged. The first conductive hole 201 is disposed offset (i.e., not aligned) with the second conductive hole 203, and the first latch hole 202 is disposed offset (i.e., not aligned) with the second latch hole 204, as viewed in the width direction W-W of the circuit board 200. So configured, it is convenient to install electrical connectors on both opposite sides of the circuit board 200 to achieve modular arrangement. Referring to fig. 5, in the region M where the two first conductive holes 201, the two first locking holes 202, the two second conductive holes 203 and the two second locking holes 204 are located, the circuit board 200 is further provided with a plurality of rows of conductive pads 205 (also referred to as "gold fingers"). In the illustrated embodiment of the present invention, the conductive strips 205 are arranged in four rows.

Referring to fig. 6 and 7, the electrical connector assembly 100 includes an electrical connector 101 and a metal shielding shell 102 covering the electrical connector 101. In the illustrated embodiment of the present invention, the electrical connector 101 is a high-speed connector, such as a QSFP connector, an SFP connector, an OSFP connector, or an OSFP-DD connector. Of course, in other embodiments, the electrical connector 101 may be other types of connectors. In the illustrated embodiment of the present invention, the electrical connector 101 includes an insulative housing 1 and a plurality of conductive terminals 2 fixed to the insulative housing 1. In the illustrated embodiment of the present invention, the electrical connector 101 has a double-layer structure, and two connector interfaces with the same structure are stacked. Unless otherwise specified, only one connector interface is described below as an example.

Specifically, referring to fig. 8 to 11, the insulation body 1 is provided with a main body portion 11 and a protrusion 12 extending forward from the main body portion 11. The main body 11 is provided with a mounting wall 111 at the bottom, the mounting wall 111 is provided with a mounting surface 1111 for mounting on the circuit board 200 and a plurality of slots 1112 arranged at intervals, and the slots 1112 penetrate through the mounting surface 1111. The protruding portion 12 is provided with an abutting surface 121 and a slot 122 penetrating the abutting surface 121. The slot 122 is used to receive a portion of a mating connector (e.g., a tongue 400 of the mating connector).

As shown in fig. 12, the conductive terminal 2 includes an elastic contact portion 21 protruding into the slot 122 and an elastic contact portion 22 extending toward the mounting surface 1111, the elastic contact portion 22 protrudes out of the mounting surface 1111, the elastic contact portion 21 is used for contacting with the mating connector, and the elastic contact portion 22 is used for contacting with the conductive sheet 205 on the circuit board 200 to realize electrical connection. The elastic abutment 22 extends through the corresponding slot 1112 to extend out of the mounting surface 1111. By providing the slit 1112, on the one hand, each elastic contact portion 22 can be separated to avoid short circuit; on the other hand, the slots 1112 provide a certain deformation space for the elastic abutting portion 22 to abut against the circuit board 200. In the illustrated embodiment of the present invention, the mounting wall 111 is provided separately from the insulating body 1 and assembled to the insulating body 1.

In the illustrated embodiment of the present invention, the conductive terminal 2 includes a connection portion 23 connected between the elastic contact portion 21 and the elastic contact portion 22. The connecting portion 23 is bent. The conductive terminal 2 further includes a first extending portion 24 connected between the elastic contact portion 21 and the connection portion 23, and a second extending portion 25 connected between the connection portion 23 and the elastic contact portion 22, wherein an extending direction of the first extending portion 24 is perpendicular to an extending direction of the second extending portion 25, and an extending direction of the elastic contact portion 22 is perpendicular to an extending direction of the second extending portion 25. The elastic contact portions 22 extend in a direction away from the elastic contact portion 21 and are parallel to each other. The elastic abutting portion 22 elastically abuts against the circuit board 200. In the illustrated embodiment of the present invention, the connecting portion 23 is insert-molded in the insulating block 26 to form a plurality of terminal modules. In the illustrated embodiment of the present invention, the terminal modules are four groups, and each two terminals form a connector interface. In terms of a connector interface, the elastic contact portions 21 in the slots 122 are arranged in two rows, and the two rows of elastic contact portions 21 jointly clamp a portion of the mating connector. Of course, in other embodiments, the conductive terminal 2 may be assembled to the insulating body 1 by a mounting method. The combination mode of the conductive terminal 2 and the insulating body 1 can be flexibly adjusted according to actual requirements, and this is known to those skilled in the art, and the present invention is not described herein again.

Referring to fig. 13 to 16, the metal shielding shell 102 includes a top wall 31, a bottom wall 32, a first side wall 33 connecting one side of the top wall 31 and one side of the bottom wall 32, a second side wall 34 connecting the other side of the top wall 31 and the bottom wall 32, and a rear wall 35 at a rear end. The metal shielding shell 102 is substantially a cylinder so as to have a good shielding effect. The top wall 31, the bottom wall 32, the first side wall 33 and the second side wall 34 together enclose a receiving cavity 30 (see fig. 1) for receiving most of the mating connector. The accommodating cavity 30 is communicated with the slot 122, the accommodating cavity 30 is located at the front end of the slot 122, and the slot 122 and the accommodating cavity 30 are used together for accommodating a butting connector.

In addition, the metal shielding shell 102 is provided with a plug surface 36 and an opening 361 exposed on the plug surface 36; the electrical connector 101 is further provided with a light guide member 4, one end of the light guide member 4 extends to the opening 361, and the other end is close to the circuit board 200. So set up, circuit board 200 shows operating condition's light can pass through on leaded light 4 transmits the plug surface 36 to be convenient for observe. The metal shielding shell 102 further includes elastic grounding claws 37 fixed to the outer side and the inner side of the top wall 31, the bottom wall 32, the first side wall 33, and the second side wall 34, respectively. The elastic grounding claws 37 are close to the insertion surface 36, wherein the elastic grounding claws 37 positioned at the outer side are used for connecting the metal shielding shell 102 with other external grounding structures so as to increase the grounding area and improve the shielding effect; the elastic grounding claw 37 at the inner side protrudes into the accommodating cavity 30, so that the elastic grounding claw can be contacted with the butting connector on one hand to increase the shielding area; on the other hand, the insertion and extraction force matched with the butting connector can be increased, and the connection stability of the butting connector and the butting connector is improved.

Referring to fig. 15, the first side wall 33 of the metal shielding shell 102 has a first side edge 331, a plurality of first mounting legs 332 protruding from the first side edge 331, and a plurality of first retaining legs 333 protruding from the first side edge 331. Along the first side edge 331, two first mounting legs 332 at the rear end (e.g., the right side in fig. 15) alternate with the first retaining legs 333. The first mounting leg 332 is provided with a first through hole 3321 so that the first mounting leg 332 has elasticity to be pressed into the first conductive hole 201 of the circuit board 200. The first retaining leg 333 is provided with a first barb 3331, and the first barb 3331 is used for being inserted into the first locking hole 202 of the circuit board 200 and being fixed with the circuit board 200.

Referring to fig. 16, the second sidewall 34 of the metal shielding shell 102 is provided with a second side edge 341, a plurality of second mounting pins 342 protruding from the second side edge 341, and a plurality of second retaining pins 343 protruding from the second side edge 341. Along the second side edge 341, two second mounting legs 342 located at the rear end (e.g., the right side in fig. 16) are arranged alternately with the second retaining legs 343. The second mounting leg 342 is provided with a second perforation 3421 to make the second mounting leg 342 elastic so as to press into the second conductive hole 203 of the circuit board 200. The second latching leg 343 is provided with a second barb 3431, and the second barb 3431 is used for being inserted into the second latching hole 204 of the circuit board 200 and being fixed with the circuit board 200. As further shown in fig. 6, the first locking legs 333 and the second locking legs 343 are arranged in a staggered manner along a width direction W-W perpendicular to the mating direction D-D, and the two first mounting legs 332 at the rear end and the two second mounting legs 342 at the rear end are arranged in a staggered manner along the width direction W-W perpendicular to the mating direction D-D. So set up, be convenient for all realize the fixed mounting with circuit board 200 with two electric connectors of circuit board 200 double-phase opposite face to realize the module and arrange.

Specifically, referring to fig. 19, in the illustrated embodiment of the present invention, the circuit board 200 includes a first surface 206 facing the electrical connector 101 and a second surface 207 opposite to the first surface 206, and the first locking hole 202 penetrates through the first surface 206. The circuit board 200 further includes a counterbore 208 extending through the second surface 207, the counterbore 208 being in communication with the first latch hole 202, and the counterbore 208 having a diameter greater than the diameter of the first latch hole 202. Thus, the circuit board 200 forms a latch surface 209 at the juncture of the counterbore 208 and the first latch hole 202. When the first barb 3331 of the first latching leg 333 is inserted into the first latching hole 202 of the circuit board 200 and is mounted in place, the first barb 3331 is latched on the latching surface 209, so as to overcome the acting force generated when the elastic abutting part 22 abuts against the conductive sheet 205 on the circuit board 200, and ensure the contact reliability of the elastic abutting part 22 and the circuit board 200. In the illustrated embodiment of the present invention, the first barb 3331 is located in the counterbore 208 and does not protrude from the second surface 207, so as to reduce the overall height of the electrical connector 101 when mounted on the circuit board 200; on the other hand, the risk of the first retaining leg 333 being damaged by external forces is also reduced.

Referring to fig. 17 and 18, the present invention further relates to an electrical connector assembly, which includes a first electrical connector assembly, a circuit board 200 and a second electrical connector assembly 300. In the illustrated embodiment of the present invention, the first electrical connector assembly is the aforementioned electrical connector assembly 100, and the second electrical connector assembly 300 is the same as the first electrical connector assembly; of course, in other embodiments, the two may also be different. The second electrical connector assembly 300 includes a second electrical connector 301. The circuit board 200 is provided with a first side (e.g., a lower side), a plurality of first conductive sheets 2051 on the first side, a second side (e.g., an upper side) opposite to the first side, and a plurality of second conductive sheets 2052 on the second side. The first electrical connector assembly is mounted on a first side of the circuit board 200 and is abutted to the first conductive sheet 2051, and the second electrical connector 301 is mounted on a second side of the circuit board 200 and is electrically connected to the second conductive sheet 2052. In one embodiment of the present invention, the conductive terminal 302 of the second electrical connector 301 elastically abuts against the second conductive sheet 2052. With such a configuration, since the first conductive sheet 2051 and the second conductive sheet 2052 are respectively provided on two opposite surfaces of the circuit board 200, arrangement is facilitated; in addition, the arrangement mode avoids the situation that a through hole which penetrates through the conductive terminal from top to bottom is arranged in the area where the conductive terminal is electrically connected with the circuit board 200, so that the adverse effect on signal transmission is reduced.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present invention should be based on the technical personnel in the technical field, although the present specification has been described in detail with reference to the above embodiments, however, the skilled in the art should understand that the technical personnel in the technical field can still modify the present invention or substitute the same, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (17)

1. An electrical connector assembly (100), comprising:

the electric connector (101), the electric connector (101) includes an insulating body (1) and a plurality of conductive terminals (2) fixed on the insulating body (1); the insulation body (1) is provided with a slot (122) and a mounting surface (1111) for mounting on a circuit board (200); the conductive terminal (2) comprises an elastic contact part (21) protruding into the slot (122) and an elastic abutting part (22) extending towards the direction of the mounting surface (1111), the elastic contact part (21) is used for contacting with a butting connector, and the elastic abutting part (22) is used for abutting against the circuit board (200); and

the metal shielding shell (102) is shielded from the electric connector (101), the metal shielding shell (102) comprises an accommodating cavity (30) communicated with the slot (122), the accommodating cavity (30) is located at the front end of the slot (122), and the slot (122) and the accommodating cavity (30) are used together for accommodating a butting connector.

2. The electrical connector assembly (100) of claim 1, wherein: the metal shielding shell (102) is provided with a first side edge (331), a plurality of first mounting feet (332) protruding from the first side edge (331), a second side edge (341) and a plurality of second mounting feet (342) protruding from the second side edge (341), wherein the first side edge (331) and the second side edge (341) are respectively positioned at two sides of the metal shielding shell (102); the first mounting foot (332) and the second mounting foot (342) are arranged in a staggered mode along the width direction perpendicular to the butt joint direction.

3. The electrical connector assembly (100) of claim 2, wherein: the first mounting foot (332) is provided with a first through hole (3321) so that the first mounting foot (332) has elasticity so as to be pressed into a first conductive hole (201) of the circuit board (200);

the second mounting leg (342) is provided with a second perforation (3421) so that the second mounting leg (342) has elasticity to be pressed into the second conductive hole (203) of the circuit board (200).

4. The electrical connector assembly (100) of claim 3, wherein: the metal shielding shell (102) is provided with a plurality of first buckling feet (333) protruding out of the first side edge (331) and a plurality of second buckling feet (343) protruding out of the second side edge (341), wherein the first buckling feet (333) and the second buckling feet (343) are arranged in a staggered mode along the width direction perpendicular to the butting direction; the first fastening foot (333) is provided with a first barb (3331), the second fastening foot (343) is provided with a second barb (3431), the first barb (3331) is used for being inserted into the first locking hole (202) of the circuit board (200) and fixed with the circuit board (200), and the second barb (3431) is used for being inserted into the second locking hole (204) of the circuit board (200) and fixed with the circuit board (200).

5. The electrical connector assembly (100) of claim 4, wherein: -along said first side edge (331), at least part of said first mounting feet (332) are alternated with said first retaining feet (333); along the second side edge (341), at least part of the second mounting feet (342) are arranged alternately with the second retaining feet (343).

6. The electrical connector assembly (100) of claim 1, wherein: the insulation body (1) is provided with an installation wall (111), the installation surface (1111) is arranged on the installation wall (111), the installation wall (111) is further provided with a plurality of slots (1112) arranged at intervals, and the elastic abutting part (22) penetrates through the slots (1112) to extend out of the installation surface (1111).

7. The electrical connector assembly (100) of claim 1, wherein: the metal shielding shell (102) comprises a top wall (31), a bottom wall (32), a first side wall (33) and a second side wall (34), wherein the first side wall (33) is connected with one side of the top wall (31) and the bottom wall (32), the second side wall (34) is connected with the other side of the top wall (31) and the bottom wall (32), and the accommodating cavity (30) is formed by the top wall (31), the bottom wall (32), the first side wall (33) and the second side wall (34) in a surrounding mode.

8. The electrical connector assembly (100) of claim 1, wherein: the metal shielding shell (102) is provided with a plug-in surface (36) and an opening (361) exposed on the plug-in surface (36); the electrical connector (101) comprises a light guide (4) extending to the aperture (361).

9. The electrical connector assembly (100) of claim 1, wherein: the elastic contact parts (21) in the slot (122) are arranged in two rows, and the two rows of the elastic contact parts (21) jointly clamp part of the butting connector.

10. The electrical connector assembly (100) of claim 1, wherein: the resilient abutment (22) projects out of the mounting surface (1111).

11. The electrical connector assembly (100) of claim 1, wherein: the conductive terminal (2) further comprises a connecting part (23) connected between the elastic contact part (21) and the elastic abutting part (22), and the connecting part (23) is bent.

12. The electrical connector assembly (100) of claim 11, wherein: the conductive terminal (2) further comprises a first extension portion (24) connected between the elastic contact portion (21) and the connecting portion (23) and a second extension portion (25) connected between the connecting portion (23) and the elastic abutting portion (22), the extension direction of the first extension portion (24) is perpendicular to the extension direction of the second extension portion (25), and the extension direction of the elastic abutting portion (22) is perpendicular to the extension direction of the second extension portion (25).

13. The electrical connector assembly (100) of claim 11, wherein: the elastic contact portions (22) extend in a direction away from the elastic contact portion (21) and are parallel to each other.

14. The electrical connector assembly (100) of claim 1, wherein: the elastic abutting part (22) is elastically abutted with the circuit board (200).

15. The electrical connector assembly (100) of claim 4, wherein: the circuit board (200) comprises a first surface (206) facing the electrical connector assembly (100) and a second surface (207) opposite to the first surface (206), and the first locking hole (202) penetrates through the first surface (206); the circuit board (200) further includes a counterbore (208) through the second surface (207), the counterbore (208) communicating with the first latch hole (202); the circuit board (200) forms a locking surface (209) at the junction of the counterbore (208) and the first locking hole (202), and the first barb (3331) is locked on the locking surface (209).

16. The electrical connector assembly (100) of claim 15, wherein: the first barb (3331) does not protrude from the second surface (207).

17. An electrical connector assembly, comprising:

a first electrical connector assembly, the first electrical connector assembly being an electrical connector assembly (100) according to any one of claims 1 to 16;

a second electrical connector (301); and

the circuit board (200) is provided with a first side, a plurality of first conducting strips (2051) positioned on the first side, a second side opposite to the first side and a plurality of second conducting strips (2052) positioned on the second side; wherein

The first electric connector assembly is arranged on the first side of the circuit board (200) and is abutted against the first conducting strip (2051), and the second electric connector (301) is arranged on the second side of the circuit board (200) and is electrically connected with the second conducting strip (2052).

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