CN114243387A

CN114243387A - Electrical connector

Info

Publication number: CN114243387A
Application number: CN202111313726.7A
Authority: CN
Inventors: 何志立; 张文昌; 廖洁; 王金柱
Original assignee: Zhongshan Yide Electronics Co ltd
Current assignee: Zhongshan Yide Electronics Co ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-03-25

Abstract

The invention discloses an electric connector, comprising: an insulating body; the first terminal assemblies are arranged in a first column along a first direction and are laterally assembled on the insulating body, and each first terminal assembly comprises two first terminals which are arranged along the first column to form a terminal pair; the plurality of second terminal assemblies are arranged in a second row along the first direction and are laterally assembled on the insulating body, each second terminal assembly comprises two second terminals which are arranged along the second row to form a terminal pair, and the plurality of first terminal assemblies in the first row and the plurality of second terminal assemblies in the second row are adjacently arranged along the second direction; and the projections of the first terminals of the first terminal assemblies and the projections of the second terminals of the second terminal assemblies along the second direction are completely staggered, and the projections of the terminal pairs of the first terminal assemblies and the projections of the terminal pairs of the second terminal assemblies along the second direction are alternately arranged. The invention can improve the shielding effect of the electric connector.

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 capable of reducing signal interference between terminal pairs.

[ background of the invention ]

A conventional electrical connector includes a plurality of wafers arranged in a transverse direction, each of the wafers includes an insulative frame and a plurality of terminals fixed to the insulative frame, and the terminals of each of the wafers are arranged in a row along a vertical direction perpendicular to the transverse direction. The terminals of the plurality of wafer bodies are basically arranged in the same manner, so that two rows of terminals of two adjacent wafer bodies are adjacently arranged and basically aligned along the transverse direction, the two adjacent rows of terminals are close to each other and are just opposite to each other along the transverse direction, and the two rows of terminals are mutually attacked by interference of strong divergence of each other, so that signal distortion is easily caused, and signal transmission of the electric connector is influenced.

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

[ summary of the invention ]

The invention aims to provide an electric connector, which can pull the distance between a plurality of first terminals in a first row and a plurality of second terminals in a second row and reduce the dead area of terminal pairs in the first row and the second row along a second direction by staggering a plurality of first terminals in the first row and a plurality of second terminals in a second row in the first direction and completely staggering the projection of the first terminals of a plurality of first terminal assemblies and the second terminals of a plurality of second terminal assemblies along the second direction, thereby effectively reducing the mutual signal interference between the terminal pairs in the first row and the second row; meanwhile, the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are arranged alternately along the projection of the second direction, so that the distance between adjacent terminal pairs in the same row can be increased, the signal interference between the terminal pairs in the same row is reduced, and the signal transmission performance of the electric connector is further improved.

In order to achieve the purpose, the invention adopts the following technical scheme: an electrical connector comprising at least one electrical module, the electrical module comprising: the insulating body is provided with a plurality of first accommodating grooves which are arranged in a first row along a first direction and a plurality of second accommodating grooves which are arranged in a second row along the first direction, the insulating body is provided with a first side and a second side which are arranged oppositely along a second direction which is perpendicular to the first direction, the first accommodating grooves are formed in a concave mode from the first side to the second side, and the second accommodating grooves are formed in a concave mode from the second side to the first side; a plurality of first terminal assemblies respectively assembled in the plurality of first accommodating grooves in the lateral direction, wherein each first terminal assembly comprises two first terminals arranged along the first row to form a terminal pair; a plurality of second terminal assemblies respectively laterally assembled in the plurality of second receiving slots, each of the second terminal assemblies including two second terminals arranged along the second row to form a terminal pair, the plurality of first terminal assemblies in the first row and the plurality of second terminal assemblies in the second row being adjacently disposed along the second direction; wherein the first terminals of the first row are completely staggered with the second terminals of the second row in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projection of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projection of the second direction.

Further, the first rows of the first receiving slots and the second rows of the second receiving slots are spaced apart from each other by a retaining wall of the insulating housing, the first terminal assembly is further provided with a first shielding shell surrounding the peripheries of the two first terminals, the first shielding shell includes a main body portion and an enlarged portion extending from the main body portion in the second direction, the first receiving slots are provided with a first recessed space and a second recessed space which are communicated with each other, the first recessed space is used for receiving the main body portion, the second recessed space is used for receiving the enlarged portion, and the recessed depth of the first recessed space is smaller than that of the second recessed space.

Furthermore, the two side walls of the enlarged portion, which are oppositely arranged along the second direction, are outwardly enlarged relative to the two side walls of the main body portion, which are oppositely arranged along the second direction, the electrical module further comprises a first fixing member, the first fixing member is embedded and fixed on the insulating body from the side direction of the first side and is in contact with the main body portions in the first row, the first fixing member and the enlarged portion in the first row are completely staggered along the projection of the second direction, and the first terminal assembly is located between the first fixing member and the groove surface of the first accommodating groove along the second direction.

Furthermore, the first fixing part is provided with a plurality of second spokes and at least one first spoke, the plurality of second spokes respectively and correspondingly block the plurality of first terminal assemblies, the first spokes are in cross connection with the plurality of second spokes, each first spoke is provided with an extension section which extends beyond the side edge of the corresponding second spoke and forms a free end, each extension section is provided with a through hole, the insulating body is provided with a protruding part, and the protruding parts are fixed in the through holes.

Furthermore, the surface of the second terminal assembly is provided with at least one fixing portion, the insulating body is recessed from the groove surface of the second accommodating groove to form at least one recessed portion, and the fixing portion is accommodated in the corresponding recessed portion.

In order to achieve the similar purpose, the invention adopts the following technical scheme: an electrical connector comprising at least one electrical module, the electrical module comprising: a plurality of first terminal assemblies arranged in a first row along a first direction, each of the first terminal assemblies including two first terminals forming a terminal pair, a first insulating block fixing the two first terminals, and a first shield shell covering the first insulating block and the two first terminals, each of the first terminals having a first surface type conductive portion for being soldered to a substrate, the first shield shell having at least one first socket-type soldering portion for being fixed to the substrate; a plurality of second terminal assemblies arranged in a second row along the first direction, the first row and the second row being disposed adjacent to each other along a second direction perpendicular to the first direction, each of the second terminal assemblies including two second terminals forming a terminal pair, a second insulating block fixing the two second terminals, and a second shielding shell covering the second insulating block and the two second terminals, each of the second terminals being provided with a second surface type guiding portion for welding with the substrate, the second shielding shell having at least one second socket type welding portion for fixing to the substrate; wherein the first terminals of the first column are completely staggered with the second terminals of the second column in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projection of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projection of the second direction; at least one of the first socket type welding portions is aligned with a corresponding one of the second surface type guiding portions along the second direction, and at least one of the second socket type welding portions is aligned with a corresponding one of the first surface type guiding portions along the second direction.

Further, the first shielding shell is further provided with at least one first surface type welding portion for welding with the substrate, and at least one second receptacle type welding portion is aligned with the corresponding first surface type guiding portion and the corresponding first surface type welding portion in the same first terminal assembly along the second direction.

Further, the first shielding shell is further provided with at least one first surface type welding portion for welding with the substrate, and the first surface type welding portion is located between the second jack type welding portion and the first surface type welding portion along the second direction.

Further, the first shielding shell has two first receptacle-type welding portions respectively located on two sides of the two first surface-type guiding portions along the arrangement direction of the two first surface-type guiding portions, and a shortest central distance between the two first receptacle-type welding portions adjacently disposed in the first row along the arrangement direction of the two first surface-type guiding portions is defined as a first distance; the second shielding shell has two second socket type welding portions respectively located at two sides of the two second surface type guiding and connecting portions along the arrangement direction of the two second surface type guiding and connecting portions, and a central distance between the two second surface type guiding and connecting portions in the second terminal assembly is defined as a second distance, wherein the first distance is equal to the second distance.

Further, a center distance between each of the first surface-type conduction connection portions and the first socket-type welding portion closest thereto in the first terminal assembly along an arrangement direction of the two first surface-type conduction connection portions is defined as a third distance, a center distance between each of the second surface-type conduction connection portions and the second socket-type welding portion closest thereto in the second terminal assembly along an arrangement direction of the two second surface-type conduction connection portions is defined as a fourth distance, and the third distance is equal to the fourth distance.

Further, a center distance between two first surface type conduction parts in the first terminal assembly is defined as a fifth distance, and the first distance, the third distance and the fifth distance are equal.

Further, the electrical connector includes at least two electrical modules arranged along the second direction, two rows of the first terminal assemblies of two electrical modules adjacently arranged along the second direction are aligned along the second direction, and at least one row of the second shielding shell has a shielding portion located between the first terminals of the two aligned rows of the first terminal assemblies along the second direction.

In order to realize similar purposes, the invention also adopts the following technical scheme: an electrical connector for mating with a mating connector, comprising at least one electrical module, the electrical module comprising: a plurality of first terminal assemblies arranged in a first row along a first direction, each of the first terminal assemblies including two first terminals forming a terminal pair, a first insulating block fixing the two first terminals, and a first shielding case covering the first insulating block and the two first terminals, each of the first terminals having a first contact portion for mating with the mating connector, a first conductive portion for electrically connecting with an electrical component, and a first connection portion connected to the first contact portion and the first conductive portion, the first conductive portion being bent and extended from the first connection portion toward a second direction perpendicular to the first direction, a distance between the first connection portions of the two first terminals being smaller than a distance between the first conductive portions; a plurality of second terminal assemblies arranged in a second row along a first direction, the first row and the second row being disposed adjacent to each other along a second direction, each of the second terminal assemblies including two second terminals forming a terminal pair, a second insulating block fixing the two second terminals, and a second shielding case covering the second insulating block and the two second terminals, each of the second terminals having a second contact portion for mating with the mating connector, a second connection portion for electrically connecting with an electrical component, and a second connection portion connected to the second contact portion and the second connection portion, the second connecting parts extend from the second connecting parts towards the second direction in a bending way, and the distance between the second connecting parts of the two second terminals is smaller than that between the second connecting parts; wherein the first terminals of the first row are completely staggered with the second terminals of the second row in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projections of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projections of the second direction.

Furthermore, the first shielding shell is provided with a main body part and a tail part connected with the main body part, the main body part is arranged around the two first connecting parts, the tail part is arranged around the two first conducting parts, and the first conducting parts are welded with the surface of the electrical element through solder balls; the tail portion is provided with two side walls which are oppositely arranged along the second direction, the first guide portion is bent and extended from the first connecting portion towards the second direction so as to be relatively close to one of the side walls of the tail portion and relatively far away from the other side wall of the tail portion, and a space for pre-fixing the solder balls is arranged between the first guide portion and the side wall of the tail portion far away from the first guide portion.

Furthermore, the two side walls of the tail portion, which are arranged oppositely along the second direction, are extended outwards relative to the two side walls of the main body portion, which are arranged oppositely along the second direction, the distances from the two side walls of the tail portion, which are arranged oppositely along the second direction, to the center of the pre-fixed solder ball are equal, and the distances from the two side walls of the main body portion, which are arranged oppositely along the second direction, to the first connecting portion are equal.

Further, the electrical connector is used for butting with a butting connector, wherein the butting connector is provided with at least two butting terminals and an insulating covering piece for covering and fixing the two butting terminals, and the insulating covering piece is provided with at least one supporting part for supporting the butting terminals; first shielding shell part encloses to be located the periphery of first contact site and concave be equipped with one dodge the groove, first contact site certainly first connecting portion are followed the second direction towards keep away from in dodge the direction of portion and buckle and extend, the contact surface orientation of first contact site dodge the groove, it is used for dodging to dodge the groove the supporting part.

Compared with the prior art, the electric connector provided by the invention has the following beneficial effects:

by staggering the first terminals of the first row and the second terminals of the second row in the first direction and completely staggering the first terminals of the first terminal assemblies and the second terminals of the second terminal assemblies along the projection of the second direction, the distance between the first terminals of the first row and the second terminals of the second row can be pulled, and the facing area of the terminal pairs of the first row and the second row along the second direction is reduced, so that the mutual signal interference between the terminal pairs of the first row and the second row is effectively reduced; meanwhile, the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are arranged alternately along the projection of the second direction, so that the distance between adjacent terminal pairs in the same row can be increased, the signal interference between the terminal pairs in the same row is reduced, and the signal transmission performance of the electric connector is further improved. Further, the lateral assembly of the first terminal assembly and the second terminal assembly to both sides of the insulative housing can reduce the thickness of the electrical connector and facilitate the assembly of the first terminal assembly and the second terminal assembly. Further, the first socket type welding part is aligned with one corresponding second surface type guide connection part along the second direction, and the second socket type welding part is aligned with one corresponding first surface type guide connection part along the second direction, so that the first socket type welding part and the second socket type welding part can respectively provide a holding force for the first surface type guide connection part and the second surface type guide connection part, and the risk of solder splitting at the first surface type guide connection part and the second surface type guide connection part is reduced. Furthermore, the first connection part and the second connection part are bent towards the second direction, the distance between the first connection parts of the two first terminals is smaller than that between the first connection parts, the distance between the second connection parts of the two second terminals is smaller than that between the second connection parts, the elasticity of the first connection parts and the second connection parts can be increased, larger acting force can be borne, and the risk that the first connection parts and the second connection parts deflect and are disconnected with the substrate in electrical transmission after being subjected to external force is reduced.

[ description of the drawings ]

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

fig. 2 is an exploded perspective view of an electrical connector according to an embodiment of the present invention;

FIG. 3 is a plan view of the mating side of an electrical module according to an embodiment of the invention;

FIG. 4 is a plan view of the mounting side of two adjacent electrical modules according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a perspective view of an electrical module according to an embodiment of the present invention;

FIG. 7 is a partially exploded view of an electrical module according to an embodiment of the present invention;

FIG. 8 is an exploded view of a first fastener and a first terminal assembly of a first row in accordance with an embodiment of the present invention;

FIG. 9 is a cross-sectional plan view of a first terminal assembly in accordance with an embodiment of the present invention;

FIG. 10 is a perspective view of an electrical module according to another embodiment of the present invention;

FIG. 11 is another partially exploded view of an electrical module in accordance with an embodiment of the present invention;

fig. 12 is an exploded view of a second fixing element and a second row of second terminal assemblies according to an embodiment of the invention;

fig. 13 is a plan view of a plurality of first terminals in a first row and a plurality of second terminals in a second row in the same electrical module according to an embodiment of the present invention;

fig. 14 is an exploded view of a docking connector according to an embodiment of the present invention;

fig. 15 is a plan view of the mating side of the docking connector of an embodiment of the present invention;

fig. 16 is a plan view of the mounting side of the docking connector of an embodiment of the present invention;

FIG. 17 is a partial perspective cross-sectional view of the first terminal assembly of the present embodiment mated with the docking assembly;

fig. 18 is a plan view, partially in section, of a first terminal assembly of an embodiment of the present invention after docking with a docking assembly.

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

[ detailed description ] embodiments

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

Referring to fig. 1, an electrical connector system according to an embodiment of the present invention includes an electrical connector 100, a mating connector 200 mated with the electrical connector 100, a first electrical component electrically connected to the electrical connector 100, and a second electrical component electrically connected to the mating connector 200. In this embodiment, the first electrical component is a first substrate 8, and the second electrical component is a second substrate 9. Of course, in other embodiments, the first electrical component and the second electrical component may be both cables, or the first electrical component is the first substrate 8 and the second electrical component is a cable, or the first electrical component is a cable and the second electrical component is the second substrate 9. Of course, the first electrical component and the second electrical component may also be other components as long as they can be electrically conducted with the corresponding electrical connector 100 or the corresponding docking connector 200 to transmit corresponding signals, and are not limited herein.

Referring to fig. 2, an electrical connector 100 according to an embodiment of the invention is configured to mate with the mating connector 200 and connect to the corresponding first electrical component. The electrical connector 100 includes an insulating housing 1, a plurality of electrical modules 2, and two holding pieces 3. The insulating shell 1 further comprises two guiding insertion holes 11, the plurality of electrical modules 2 are arranged in parallel and fixed on the insulating shell 1, and the plurality of electrical modules 2 are further fixed and positioned with each other through the two fixing pieces 3. The mating side of the electrical connector 100 is used for mating the mating connector 200, and the mounting side of the electrical connector 100 is used for connecting the first electrical component.

Referring to fig. 3, 7 and 11, each of the electrical modules 2 includes an insulating body 21, a plurality of first terminal assemblies 22, a plurality of second terminal assemblies 23, a first fixing member 24 and a second fixing member 25. Specifically, the insulating body 21 has a plurality of first receiving slots 213 arranged in a first row along a first direction and a plurality of second receiving slots 214 arranged in a second row along the first direction. The insulating body 21 has a first side 211 and a second side 212 opposite to each other along a second direction perpendicular to the first direction, wherein the first receiving groove 213 is formed to be recessed from the first side 211 toward the second side 212, the second receiving groove 214 is formed to be recessed from the second side 212 toward the first side 211, and the first receiving grooves 213 in the first row and the second receiving grooves 214 in the second row are spaced apart from each other by a stop wall 215 of the insulating body 21. The plurality of first terminal assemblies 22 are respectively laterally assembled in the plurality of first receiving slots 213 and arranged along the first row, the plurality of second terminal assemblies 23 are respectively laterally assembled in the plurality of second receiving slots 214 and arranged along the second row, and the first row and the second row are adjacently arranged along the second direction. The first fixing member 24 is fixed to the insulating body 21 from the first side 211, and the second fixing member 25 is fixed to the insulating body 21 from the second side 212. In the present embodiment, the plurality of first terminal assemblies 22 and the plurality of second terminal assemblies 23 are respectively assembled and accommodated in the insulating body 21 from the first side 211 and the second side 212 of the insulating body 21, so that two rows of terminal assemblies can be fixed on one insulating body 21, and the first terminal assemblies 22 and the second terminal assemblies 23 can be conveniently assembled to the insulating body 21 laterally, and the installation is simple. Further, the first terminal assembly 22 of the first row and the second terminal assembly 23 of the second row are limited and stopped by a stop wall 215 in the middle of the insulating body 21. Compared with the case that each of the insulating bodies 21 only fixes the terminal assemblies corresponding to one row, the terminal assemblies in two rows in the embodiment can be respectively blocked by two sides of one blocking wall 215, instead of two blocking walls 215 of two insulating bodies 21 respectively blocking two rows of terminal assemblies, the thickness of one blocking wall 215 can be reduced, so that the production cost can be reduced, and the size of the electrical connector 100 in the arrangement direction of the electrical modules 2 can be effectively reduced. The first fixing member 24 and the second fixing member 25 may be made of an insulating material or a conductive material; when the first fixing member 24 and the second fixing member 25 are made of conductive materials, they may further contact with the shielding ground structure of the first terminal assembly 22 and the shielding ground structure of the second terminal assembly 23, respectively.

Referring to fig. 7 and 11, the insulating body 21 is provided with a plurality of embedding slots 218, and the plurality of embedding slots 218 are formed by being recessed from the first side 211 and the second side 212, respectively. In the present embodiment, the portion of the first fixing element 24 is embedded in the corresponding embedding groove 218, and the portion of the second fixing element 25 is embedded in the corresponding embedding groove 218, so that the connection stability between the first fixing element 24 and the second fixing element 25 and the insulation body 21 can be improved, and the thickness of the electrical module 2 can be reduced.

Referring to fig. 7 and 8, each of the first terminal assemblies 22 includes two first terminals 221 arranged along the first column to form a terminal pair, a first insulating block 222 fixing the two first terminals 221, and a first shielding case 223 covering the first insulating block 222 and the two first terminals 221, where narrow sides of the two first terminals 221 forming the terminal pair are opposite. Each of the second terminal assemblies 23 includes two second terminals 231 arranged along the second row to form a terminal pair, a second insulating block 232 fixing the two second terminals 231, and a second shielding case 233 covering the second insulating block 232 and the two second terminals 231, wherein narrow sides of the two second terminals 231 forming the terminal pair are opposite to each other. As shown in fig. 3 and 13, the first terminals 221 of the first row are completely staggered from the second terminals 231 of the second row in the first direction, the first terminals 221 of the first terminal assemblies 22 are completely staggered from the second terminals 231 of the second terminal assemblies 23 in the second direction, and the terminal pairs of the first terminal assemblies 22 are arranged alternately with the terminal pairs of the second terminal assemblies 23 in the second direction. Therefore, the distance between the first terminals 221 in the first row and the second terminals 231 in the second row can be increased, the facing area of the terminal pairs in the first row and the facing area of the terminal pairs in the second row along the second direction can be reduced, and the mutual signal interference between the terminal pairs in the first row and the terminal pairs in the second row can be effectively reduced; meanwhile, the terminal pairs of the first terminal assemblies 22 and the terminal pairs of the second terminal assemblies 23 are arranged alternately along the projection of the second direction, so that the distance between two adjacent terminal pairs in the same column can be increased, the signal interference between the terminal pairs in the same column can be reduced, and the signal transmission performance of the electrical connector 100 can be further improved. It should be noted that, when the first fixing member 24 and the second fixing member 25 are made of conductive materials, the first fixing member 24 may be disposed to be electrically connected to the plurality of first shielding cases 223 of the first row, and the second fixing member 25 may be disposed to be electrically connected to the plurality of second shielding cases 233 of the second row, so that the plurality of first shielding cases 223 are connected to form an integral grounding shielding structure, and the plurality of second shielding cases 233 are connected to form an integral grounding shielding structure, thereby further improving the shielding effect of the electrical connector 100.

Referring to fig. 8, 12 and 13, each of the first terminals 221 has a first contact portion 2211, a first connection portion 2213 and a first connection portion 2212 connecting the first contact portion 2211 and the first connection portion 2213, and the second terminal 231 has a second contact portion 2311, a second connection portion 2313 and a second connection portion 2312 connecting the second contact portion 2311 and the second connection portion 2313. The first contact portion 2211 and the second contact portion 2311 are used for mating with the mating connector 200, and the first conductive portion 2213 and the second conductive portion 2313 are used for electrically connecting with a first electrical component. In this embodiment, the first electrical component is the first substrate 8, the first lead portion 2213 is a first surface type lead portion, the second lead portion 2313 is a second surface type lead portion, and the first lead portion 2213 and the second lead portion 2313 are both used for being soldered to the surface of the first substrate 8 by solder balls 10, so as to improve the coplanarity of the first lead portion 2213 and the second lead portion 2313 in the electrical connector 100. Of course, in other embodiments, the first and

second guiding portions

2213 and 2313 may also be fisheye-shaped end portions (not shown) or receptacle-type guiding portions (not shown) to be inserted into the receptacles (not shown) of the first substrate 8. It should be noted that, in the plurality of first terminal assemblies 22, two first terminals 221 in one part of the first terminal assemblies 22 may be selectively configured to be two signal terminals arranged to form a differential pair, and two first terminals 221 in the other part of the first terminal assemblies 22 may be selectively configured to be two power terminals of a transmission power supply. Of course, in other embodiments, the signals transmitted by the two first terminals 221 in each first terminal assembly 22 can be configured according to actual needs, and are not limited herein. Similarly, in the plurality of second terminal assemblies 23, the signals transmitted by the two second terminals 231 in each of the second terminal assemblies 23 may be configured according to actual needs, for example, two signal terminals arranged to form a differential pair, or two power terminals for transmitting power, or terminals for transmitting other signals, which is not limited herein.

Referring to fig. 8, 12 and 13, the first connecting portions 2213 extend from the first connecting portions 2212 in a bending manner toward the second direction, and a distance between the first connecting portions 2212 of the two first terminals 221 forming a terminal pair is smaller than a distance between the first connecting portions 2213. The second connection portions 2313 are bent and extended from the second connection portions 2312 in the second direction, and a distance between the second connection portions 2312 of the two second terminals 231 forming the terminal pair is smaller than a distance between the second connection portions 2313. Therefore, the distances between the two first lead connection portions 2213 and between the two second lead connection portions 2313 along the arrangement direction can be relatively increased, and the risk of short circuit after welding of solder is reduced; meanwhile, the first conductive portion 2213 can be bent in the second direction and the arrangement direction of the two first conductive portions 2213 relative to the first connection portion 2212, so that the first conductive portion 2213 has high elasticity and can bear high acting force, and the risk that the first conductive portion 2213 is deflected to be electrically disconnected from the first substrate 8 after being subjected to external force is reduced; similarly, the second conductive connection portion 2313 has a larger elasticity and can bear a larger acting force, so that the risk that the second conductive connection portion 2313 is deflected to be electrically disconnected from the first substrate 8 after receiving an external force is reduced.

Referring to fig. 6 to 8, the first receiving groove 213 has a first recessed space 2131 and a second recessed space 2132 communicated with each other, and a recessed depth of the first recessed space 2131 is smaller than a recessed depth of the second recessed space 2132. The first shielding case 223 includes a main body 2231 and an enlarged portion 2232 extending from the main body 2231 in the second direction, the first recessed space 2131 is used for accommodating the main body 2231, and the second recessed space 2132 is used for accommodating the enlarged portion 2232. In this way, the first recessed space 2131 and the second recessed space 2132 having different recessed depths restrict the movement of the enlarged portion 2232 in the longitudinal direction of the first receiving groove 213, thereby preventing the first terminal assembly 22 from being displaced; meanwhile, since the first recessed space 2131 has a smaller recessed depth, a forming space can be provided for the stop wall 215 of the insulating body 21, and a thicker stop wall 215 can be formed on the insulating body 21 with a smaller thickness to stop the first terminal assembly 22 and the second terminal assembly 23, and the insulating body 21 can be prevented from being broken easily due to the too thin stop wall 215. Further, two sidewalls of the enlarged portion 2232 that are opposite to each other along the second direction are flared with respect to two sidewalls of the main body portion 2231 that are opposite to each other along the second direction. The first fixing member 24 is embedded and fixed in the insulating body 21 from the first side 211, and contacts with the main body portions 2231 in the first row, the first fixing member 24 and the enlarged portion 2232 in the first row are completely staggered along the projection of the second direction, and the first terminal assembly 22 is located between the first fixing member 24 and the groove surface of the first receiving groove 213 along the second direction. Therefore, the first terminal assemblies 22 can be stopped by the first fixing member 24, and the first terminal assemblies 22 are prevented from being separated from the insulating body 21 from the first receiving grooves 213; meanwhile, the projections of the first fixing member 24 and the enlarged portion 2232 are staggered, so that the thickness of the enlarged portion 2232 does not continuously overlap the thickness of the first fixing member 24, which is beneficial to reducing the thickness dimension of the electrical connector 100. Further, the first fixing member 24 has a plurality of second spokes 242 and a plurality of first spokes 241, the plurality of second spokes 242 respectively and correspondingly block the plurality of first terminal assemblies 22, the first spokes 241 are connected with the plurality of second spokes 242 in a crossing manner, each of the first spokes 241 has an extending section 2411 extending beyond the side edge of the corresponding second spoke 242 and forming a free end, the extending section 2411 has a through hole 2412, the insulating body 21 has a protruding portion 217, and the protruding portion 217 is fixed in the through hole 2412. By forming the through hole 2412 in the extension 2411 and cooperating with the protrusion 217 for fixation, the second spoke 242 closest to the extension 2411 of the first fixing member 24 can be prevented from tilting, and effective stop of the first fixing member 24 on the first terminal assembly 22 can be ensured. In this embodiment, each of the first spokes 241 is provided with a plurality of through holes 2412 arranged along the extending direction thereof, and the plurality of through holes 2412 respectively receive and fix the corresponding protrusions 217, so as to increase the connection stability between the first spokes 241 and the insulating body 21 at more positions.

Referring to fig. 7, 8 and 11, a portion of the first shielding shell 223 surrounds the first contact portion 2211 and is recessed with an avoiding groove 2233; correspondingly, a portion of the second shielding shell 233 surrounds the second contact portion 2311 and is recessed with an escape groove 2233. The avoidance slot 2233 is used to avoid certain elements of the docking connector 200. The first shielding shell 223 and the second shielding shell 233 each include two shielding members assembled with each other and enclosing to form a shielding space, so as to provide circumferential shielding for the terminal pairs of the first row and the second row, thereby improving the signal shielding effect of the electrical connector 100. In other embodiments, the shapes and structures of the first shield case 223 and the second shield case 233 may be different from those of the present embodiment, for example, the first shield case 223 and the second shield case 233 may be tubular structures integrally formed by bending one sheet.

Referring to fig. 7 and 8, each of the first shielding cases 223 has two first socket type soldering portions 2234 for being fixed to the first substrate 8, and a plurality of first surface type soldering portions 2235 for being soldered to the first substrate 8. In this embodiment, the main body 2231 of the first shielding shell 223 surrounds the outer peripheries of the first connecting portion 2212 and the first contact portion 2211, the enlarged portion 2232 of the first shielding shell 223 surrounds the two first guiding portions 2213, in this case, the enlarged portion 2232 is disposed at the end of the first shielding shell 223, and the enlarged portion 2232 serves as a tail portion of the first shielding shell 223 connected to the main body 2231. In this embodiment, the first shielding case 223 has four sidewalls, the first surface type welding portions 2235 are respectively disposed on two sidewalls that are opposite to each other along the second direction, and the two first receptacle type welding portions 2234 are respectively disposed on the other two sidewalls that are opposite to each other along the arrangement direction of the two first guiding portions 2213. Of course, in other embodiments, the first surface type welding part 2235 and the first female type welding part 2234 may be provided at the same side wall, for example, one first female type welding part 2234 may be provided at both ends of one side wall, and the first surface type welding part 2235 may be provided at a middle portion of the side wall. The number of the first receptacle type welding portions 2234 and the number of the first surface type welding portions 2235 included in the first shielding case 223 may be set according to actual needs, and is not limited herein. It should be noted that the first receptacle-type soldering portions 2234 are inserted into the receptacles (not shown) of the first substrate 8, the first surface-type soldering portions 2235 are soldered to the surface of the first substrate 8, and the holding force between the first receptacle-type soldering portions 2234 and the first substrate 8 is stronger than that between the first surface-type soldering portions 2235, so as to increase the connection stability between the first shielding shell 223 and the first substrate 8. The first surface type soldering part 2235 can increase the ground transmission path between the first shielding case 223 and the first substrate 8, and can also reduce the occupation of the internal space of the first substrate 8, thereby facilitating the signal path layout inside the first substrate 8; meanwhile, the first surface type soldering part 2235 can be supported on the surface of the first substrate 8 to provide a supporting force for the first shielding case 223, thereby reducing the risk of the first shielding case 223 skewing.

Referring to fig. 8 and 9, the first lead portion 2213 is soldered to the surface of the first substrate 8 through a solder ball 10, the tail portion of the first shielding case 223 has two side walls oppositely disposed along the second direction, the first lead portion 2213 is bent and extended from the first connection portion 2212 toward the second direction to be relatively close to one of the side walls of the tail portion and relatively far away from the other side wall of the tail portion, and a space for pre-fixing the solder ball 10 is disposed between the first lead portion 2213 and the side wall of the tail portion far away. The tail portion can shield the first conductive portion 2213 from interference signals, so as to improve the shielding effect of the electrical connector 100; the first lead portion 2213 is soldered by the solder ball 10, which can increase the coplanarity of the first terminal 221, and the first lead portion 2213 is bent along the second direction to provide a space for the solder ball 10 to avoid short-circuiting the first terminal 221 by the solder ball 10 contacting the first shielding case 223. Further, two side walls of the tail portion arranged oppositely along the second direction are extended outward relative to two side walls of the main body portion 2231 arranged oppositely along the second direction, distances from the two side walls of the tail portion arranged oppositely along the second direction to the center of the solder ball 10 after being pre-fixed are equal, and distances from the two side walls of the main body portion 2231 arranged oppositely along the second direction to the first connecting portion 2212 are equal. The tail of the first shielding shell 223 expands outward to provide more space for the solder ball 10, so as to avoid the short circuit of the first terminal 221 caused by the contact between the solder ball 10 and the first shielding shell 223; the distance between the first connection portion 2212 and the main body portion 2231 can be reduced, the impedance of the first connection portion 2212 can be reduced, and the loss of the first terminal 221 can be reduced; meanwhile, the distance from the center of the solder ball 10 to the two side walls of the tail portion is equal, and the distance from the first connecting portion 2212 to the two side walls of the main body portion 2231 is equal, so that the impedance after the solder ball 10 is soldered by the first connecting portion 2213 can be balanced, the impedance at the two sides of the first connecting portion 2212 can be balanced, and the signal fluctuation of the first terminal 221 can be reduced.

Referring to fig. 10 to 12, each of the second shield cases 233 has two second socket type soldering portions 2332 fixed to the first substrate 8 and a plurality of second surface type soldering portions 2333 soldered to the first substrate 8. In this embodiment, the second shielding shell 233 has four side walls, the second surface type welding portions 2333 are respectively disposed on two side walls opposite to each other along the second direction, and the two second receptacle type welding portions 2332 are respectively disposed on the other two side walls opposite to each other along the arrangement direction of the two second guiding portions 2313. Of course, in other embodiments, the second surface-type welding part 2333 and the second receptacle-type welding part 2332 may be provided at the same side wall, for example, one second receptacle-type welding part 2332 may be provided at both ends of one side wall, and the second surface-type welding part 2333 may be provided at a middle portion of the side wall. The number of the second receptacle type welding portions 2332 and the number of the second surface type welding portions 2333 included in the second shield case 233 may be set according to actual needs, and is not limited herein. It should be noted that, in this embodiment, the second shielding shell 233 and the first shielding shell 223 have similar features, the second shielding shell 233 is also correspondingly provided with a main body portion 2231 and an enlarged portion 2232, which are connected, and the enlarged portion 2232 is used as a tail portion of the second shielding shell 233 and is surrounded on the periphery of the second guiding portion 2313, which also has similar effects, and is not described herein again. Similar to the first shield case 223, the second receptacle type soldering part 2332 of the second shield case 233 can increase the connection stability between the second shield case 233 and the first substrate 8, and the second surface type soldering part 2333 can provide more supporting force for the second shield case 233 and facilitate the signal path layout of the inside of the first substrate 8.

Referring to fig. 7, 10 to 12, a plurality of fixing portions 2331 are disposed on a surface of the second shielding shell 233, the insulating body 21 is recessed from a groove surface of the second receiving groove 214 to form a plurality of recessed portions 216, and each fixing portion 2331 is received in a corresponding one of the recessed portions 216. Therefore, after the second terminal assembly 23 is assembled in the second receiving groove 214, the second terminal assembly 23 can be positioned better, and the risk that the second terminal assembly 23 is displaced and separated from the insulating body 21 is reduced. In this embodiment, the first shield case 223 and the second shield case 233 each include two shield members, one of the shield members is provided with the fixing portion 2331, and the two shield members are further fixedly assembled with each other by the fixing portion 2331. In this embodiment, the fixing portion 2331 of the second shield case 233 can fix both the two shield members to each other and position the second shield case 233 and the insulating body 21 to each other. Of course, in other embodiments, the second shielding shell 233 is positioned to the insulating body 21 by the fixing portion 2331, and the two shielding members of the second shielding shell 233 are mutually fixed and assembled by other structures, for example, the fixing portion 2331 may be other structures additionally fixed on the surface of the second shielding shell 233 and accommodated in the recess 216. Of course, in other embodiments, the second terminal assembly 23 may not be provided with the second shielding shell 233, and the fixing portion 2331 of the second terminal assembly 23 may be a surface fixed to another structure of the second terminal assembly 23, for example, the surface of the second insulating block 232 of the second terminal assembly 23 is convexly provided to form the fixing portion 2331. The surface of the second terminal assembly 23 may be provided with the fixing portion 2331 and may be accommodated in the recess 216 of the insulating body 21.

Referring to fig. 4 and 5, in the electrical module 2, at least one first receptacle-type soldering portion 2234 is aligned with a corresponding one of the second surface-type guiding portions along the second direction, and at least one second receptacle-type soldering portion 2332 is aligned with a corresponding one of the first surface-type guiding portions along the second direction. Since the first lead-in portion 2213 of the first terminal 221 is used as a first surface type lead-in portion, and the second lead-in portion 2313 of the second terminal 231 is used as a second surface type lead-in portion, when the first surface type lead-in portion and the second surface type lead-in portion are soldered to the surface of the first substrate 8, and external force is easily applied to the first terminal 221 and the second terminal 231, the first surface type lead-in portion and the second surface type lead-in portion are deflected to cause solder splitting, which easily causes poor contact between the first terminal 221 and the second terminal 231 and the first substrate 8, and further affects signal transmission of the electrical connector 100. Therefore, the present embodiment reduces the risk of solder splitting of the second surface type conduction part in the second direction by the strong holding action between the first receptacle type soldering part 2234 and the first substrate 8; by the strong holding function between the second socket type soldering portion 2332 and the first substrate 8, the risk of solder separation of the first surface type conduction portion in the second direction is reduced, so that the solder separation of the first surface type conduction portion and the second surface type conduction portion when receiving the deflection force in the second direction is effectively avoided, and the normal signal transmission of the electrical connector 100 is ensured. Of course, in other embodiments, the number of the first socket welds 2234 of each of the first shield cases 223 may be one or more than two, and the number of the second socket welds 2332 of each of the second shield cases 233 may be one or more than two. It should be noted that the first terminal assembly 22 and the second terminal assembly 23 may be positioned and isolated from each other by the insulative housing 21, so that the holding forces of the first receptacle solder 2234 and the second receptacle solder 2332 can be transmitted to the first surface type guiding portion and the second surface type guiding portion by the insulative housing 21; it is also possible to directly adjacently arrange the first shield shell 223 and the second shield shell 233 in contact with each other, and it is also possible to realize that the holding force of the first socket type soldering part 2234 and the second socket type soldering part 2332 is transmitted to the first surface type guiding part and the second surface type guiding part, respectively. That is, the first terminal assembly 22 and the second terminal assembly 23 may be in direct contact or indirect contact.

Referring to fig. 4 and 5, at least one of the second receptacle welds 2332 is aligned with a corresponding one of the first surface type guides and the first surface type welds 2235 in the same first terminal assembly 22 in the second direction. When the first surface type conduction part is stressed and has a tendency of shaking and deflecting, because the first surface type welding part 2235 of the embodiment is supported on the first substrate 8, a deflection-preventing supporting force can be further provided for the first surface type conduction part, and the risk that the first surface type conduction part deflects and is tin cracked is further reduced; the second socket-type solder 2332 provides support for the first-surface-type solder 2235, reducing the risk of the first-surface-type solder 2235 deflecting and cracking. The first surface type welding part 2235 is located between the second receptacle type welding part 2332 and the first surface type welding part 2235 in the second direction. As such, compared to the first surface type soldering part 2235 not being disposed in the middle, the present embodiment can also reduce the distance between the first surface type soldering part 2235 and the second receptacle type soldering part 2332, reduce the risk of tin cracking at the first surface type soldering part 2235, and further improve the connection stability between the first shielding shell 223 and the first substrate 8.

Referring to fig. 4 and 5, the two first receptacle type soldering portions 2234 of the first shielding shell 223 are respectively located at two sides of the two first surface type guiding portions along the arrangement direction of the two first surface type guiding portions, so as to reduce the risk of solder of the first surface type guiding portions splitting along the arrangement direction; the two second socket type soldering portions 2332 of the second shield case 233 are respectively located at both sides of the two second surface type conduction portions along the arrangement direction of the two second surface type conduction portions, which can reduce the risk of the solder of the first surface type conduction portion splitting along the arrangement direction thereof. In this way, poor contact between the first terminal 221, the second terminal 231, and the first substrate 8 is prevented from multiple directions. Defining the shortest center distance between two of the first female solder portions 2234 adjacently disposed in the first row along the arrangement direction of the two first surface-type guiding portions as a first distance D1, and defining the center distance between two of the second surface-type guiding portions in the second terminal assembly 23 as a second distance D2, wherein the first distance D1 is equal to the second distance D2, so that more of the second surface-type guiding portions can be aligned with the corresponding first female solder portions 2234 in the second direction, and the first female solder portions 2234 of the electrical connector 100 can be fully utilized to reduce the risk of poor contact between the electrical connector 100 and the second substrate 9. Further, a center distance of each of the first surface-type guide portions and the first receptacle-type solder portions 2234 closest thereto in the first terminal assembly 22 in the arrangement direction of the two first surface-type guide portions is defined as a third distance D3, a center distance of each of the second surface-type guide portions and the second receptacle-type solder portions 2332 closest thereto in the second terminal assembly 23 in the arrangement direction of the two second surface-type guide portions is defined as a fourth distance D4, and the third distance D3 is equal to the fourth distance D4, so that the first receptacle-type solder portions 2234 and the second receptacle-type solder portions 2332 around the first surface-type guide portions support force in multiple directions together, the first receptacle-type solder portions 2234 and the second receptacle-type solder portions 2332 around the second surface-type guide portions support force in multiple directions together, the risk of solder splitting of the first surface type lead-in part and the second surface type lead-in part is reduced more effectively. A center distance between two first surface type lead-in portions in the first terminal assembly 22 is defined as a fifth distance D5, and the first distance D1, the third distance D3 and the fifth distance D5 are equal. In this way, the first distance D1 to the fifth distance D5 are equal, so that the size of the electrical connector 100 along the arrangement direction of the first surface-type guiding parts can be minimized under the condition that as many first receptacle-type soldering parts 2234 are aligned with the second surface-type guiding parts as possible and as many second receptacle-type soldering parts 2332 are aligned with the first surface-type guiding parts as possible, which is beneficial to the miniaturization design of the electrical connector 100.

Referring to fig. 2, 4 and 5, a plurality of the electrical modules 2 are arranged along the second direction, for any two electrical modules 2 adjacently arranged along the second direction, two rows of the first terminal assemblies 22 are aligned along the second direction, wherein one row of the second shielding cases 233 has a shielding portion located between the first terminals 221 of the two aligned rows of the first terminal assemblies 22 along the second direction. In this embodiment, the shielding portion is a sidewall of the second shielding case 233, and in other embodiments, may be other portions of the second shielding case 233. The shielding portion helps to shield interference signals between the first terminals 221 in two aligned columns, further improving the electrical performance of the electrical connector 100.

Referring to fig. 8, the first insulating block 222 of the present embodiment includes a first injection molding part 2221 and a second injection molding part 2222, the first injection molding part 2221 is molded to cover the peripheries of the two first terminals 221, and the second injection molding part 2222 is molded to cover the peripheries of the first injection molding part 2221 and the two first terminals 221, wherein the first injection molding part 2221 provides a fixed position for a mold when the second injection molding part 2222 is injection molded, so that after the mold is removed, unnecessary recesses left in the first insulating block 222 can be avoided to expose unnecessary exposed portions of the first terminals 221 in an air medium, and impedance fluctuation of the first terminals 221 can be reduced. Likewise, the second insulating block 232 may be formed by a two-shot injection molded part. Of course, in other embodiments, the first insulating block 222 and the second insulating block 232 may also be formed by one-time injection molding, which is not limited herein.

Referring to fig. 14, 15 and 16, the docking connector 200 includes an insulating base 4, a plurality of docking assemblies 5, a plurality of conducting members 6 and two guiding posts, wherein the docking assemblies 5 are fixed to the insulating base 4 and are arranged in a plurality of rows, the docking assemblies 5 in each row are commonly in contact with a corresponding conducting member 6, the two guiding posts are fixed to the insulating base 4, and each guiding post is used for being inserted into a corresponding guiding insertion hole 11. After the electrical connector 100 and the docking connector 200 are docked, the insulating base 4 is docked with the insulating housing 1, each docking assembly 5 is docked with a corresponding terminal assembly, and the two guide posts are respectively inserted and fixed in the two guide insertion holes 11.

Specifically, the two guide posts include a first guide post 7a and a second guide post 7b, the length of the first guide post 7a is greater than that of the second guide post 7b, and in the process of butting the electrical connector 100 and the butting connector 200, the first guide post 7a is firstly matched with the corresponding guide insertion hole 11 to perform initial guide positioning, and then the second guide post 7b is matched with the corresponding guide insertion hole 11 to perform accurate positioning. Since the first guiding post 7a initially positions the electrical connector 100 and the docking connector 200, the first guiding post 7a has a greater risk of damage, such as being broken or deformed, and the second guiding post 7b is further positioned on the premise that the first guiding post 7a is initially positioned, and the second guiding post 7b has a lower risk of damage relative to the first guiding post 7a, in this embodiment, the material strength of the first guiding post 7a is greater than that of the second guiding post 7b, such as the first guiding post 7a is made of a metal material and the second guiding post 7b is made of a plastic material, so that the production cost of the second guiding post 7b can be reduced on the premise that two guiding posts are not easily damaged.

Referring to fig. 14 and 16, each of the docking assemblies 5 includes an insulating covering member 52, two docking terminals 51 fixed to the insulating covering member 52, and a docking shield 53, the two docking terminals 51 are arranged to form a terminal pair, and the docking shield 53 covers the insulating covering member 52 and the two docking terminals 51. The mating terminal 51 has a contact portion that mates with the electrical connector 100 and a conductive portion that is electrically connected to the second substrate 9, in this embodiment, the conductive portion of the mating terminal 51 is soldered to the surface of the second substrate 9 by solder balls 10, and in other embodiments, the conductive portion of the mating terminal 51 may be in other forms or in other manners to be electrically connected to corresponding second electrical components. As shown in fig. 15 and 16, corresponding to the electrical connector 100, the plurality of docking assemblies 5 of the docking connector 200 are correspondingly arranged to form a plurality of columns, and the docking shields 53 of the plurality of docking assemblies 5 in each column are in contact with a corresponding one of the conductive members 6. The abutting terminals 51 of two adjacent columns are staggered from each other in the column direction to reduce signal interference between the abutting terminals 51 of two adjacent columns. In this embodiment, after the electrical connector 100 and the docking connector 200 are docked, the contact portions of the docking terminals 51 are respectively docked with the corresponding first contact portions 2211 of the first terminals 221 or the corresponding second contact portions 2311 of the second terminals 231. The first shield case 223 and the second shield case 233 are respectively butted against the corresponding butted shield bodies 53 and received in the corresponding butted shield bodies 53. The abutting edge of the abutting shield 53 is provided with an everted guide 531 for guiding. In other embodiments, the docking shield 53 may be accommodated in the first shield case 223 or the second shield case 233.

Further, as shown in fig. 14, 17 and 18, the insulating covering 52 further includes two supporting portions 521, where the supporting portions 521 are used for supporting the contact portion of the butt terminal 51 and providing a supporting force for the contact portion of the butt terminal 51, so that the butt terminal 51 can be stably contacted with the first terminal 221 or the second terminal 231, and elastic fatigue of the contact portion of the butt terminal 51 is reduced. The avoiding groove 2233 is configured to avoid the supporting portion 521, that is, after the electrical connector 100 and the docking connector 200 are docked, the supporting portion 521 is located in the avoiding groove 2233. Therefore, the avoiding groove 2233 can effectively avoid the supporting portion 521 without enlarging the size of the first shielding shell 223 and the second shielding shell 233, so that the supporting portion 521 can be prevented from colliding with the first shielding shell 223 or the second shielding shell 233, and the volume of the electrical connector 100 can be reduced. In the present embodiment, the insulating cover 52 is provided with two supporting portions 521 corresponding to the two butt terminals 51, respectively, and in other embodiments, one supporting portion 521 may be provided for the insulating cover 52, and the contact portions of the two butt terminals 51 are simultaneously supported by one supporting portion 521. Further, the first contact portion 2211 is bent and extended from the first connection portion 2212 along the second direction toward a direction away from the relief portion, so that after the electrical connector 100 and the docking connector 200 are docked, the contact portions of the first contact portion 2211 and the docking terminal 51 can be distributed in the middle of the first shielding shell 223 or the docking shielding body 53, the impedance of the contact portions of the first contact portion 2211 and the docking terminal 51 is balanced, and the impedance fluctuation is reduced.

Please refer to fig. 16, in this embodiment, the guiding portion of the docking terminal 51 is configured to be soldered to the surface of the second substrate 9, the docking shielding body 53 of the docking assembly 5 is provided with two socket type fillets 532 and four surface type fillets 533, the socket type fillets 532 are configured to be soldered to the socket (not shown) of the second substrate 9, and the surface type fillets 533 are configured to be soldered to the surface of the second substrate 9. In the staggered rows of the mating assemblies 5 in the mating connector 200, the alignment between the guiding portions of the mating terminals 51 and the female solder tails 532 and the surface solder tails 533 of the mating shields 53 is similar to the alignment between the first surface guiding portions, the second surface guiding portions, the first female solder portions 2234, the second female solder portions 2332, the first surface solder portions 2235, and the second surface solder portions 2333 in the electrical connector 100, and has similar features and advantages, which are not described herein again. In this embodiment, the first connecting portion 2212 is bent and extended such that the arrangement direction of the first contact portion 2211 of the first terminal 221 in the first row is different from the arrangement direction of the first lead portion 2213; in the docking connector 200, the arrangement direction of the contact portions of the docking terminals 51 in each column is the same as the arrangement direction of the conductive portions.

In summary, the electrical connector 100 provided by the present invention has the following advantages:

1. the lateral assembly of the first terminal assembly 22 and the second terminal assembly 23 to the first side 211 and the second side 212 of the insulative housing 21, respectively, reduces the thickness of the electrical connector 100 and facilitates the assembly of the first terminal assembly 22 and the second terminal assembly 23.

2. The first and second socket

type soldering portions

2234 and 2332 can provide holding force for the first and second surface type guides, respectively, to reduce the risk of solder splitting at the first and second surface type guides.

3. The first conductive portion 2213 can be bent in the second direction and the arrangement direction of the two first conductive portions 2213 relative to the first connection portion 2212, so that the first conductive portion 2213 has high elasticity and can bear high acting force, and the risk that the first conductive portion 2213 is deflected to be electrically disconnected from the first substrate 8 after receiving external force is reduced.

4. Each fixing portion 2331 is received in a corresponding recess 216, so that the second terminal assembly 23 can be better positioned after the second terminal assembly 23 is assembled in the second receiving slot 214, and the risk of the second terminal assembly 23 being displaced and separated from the insulating body 21 is reduced.

5. The supporting portion 521 can provide a supporting force for the contact portion of the mating terminal 51, reduce elastic fatigue of the contact portion of the mating terminal 51, prevent the supporting portion 521 from colliding with the first shielding shell 223 or the second shielding shell 233 through the escape groove 2233, and reduce the volume of the electrical connector 100.

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 technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector, comprising at least one electrical module, the electrical module comprising:

the insulating body is provided with a plurality of first accommodating grooves which are arranged in a first row along a first direction and a plurality of second accommodating grooves which are arranged in a second row along the first direction, the insulating body is provided with a first side and a second side which are arranged oppositely along a second direction which is perpendicular to the first direction, the first accommodating grooves are formed in a concave mode from the first side to the second side, and the second accommodating grooves are formed in a concave mode from the second side to the first side;

a plurality of first terminal assemblies respectively assembled in the plurality of first accommodating grooves in the lateral direction, wherein each first terminal assembly comprises two first terminals arranged along the first row to form a terminal pair;

a plurality of second terminal assemblies respectively laterally assembled in the plurality of second receiving slots, each of the second terminal assemblies including two second terminals arranged along the second row to form a terminal pair, the plurality of first terminal assemblies in the first row and the plurality of second terminal assemblies in the second row being adjacently disposed along the second direction;

wherein the first terminals of the first row are completely staggered with the second terminals of the second row in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projection of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projection of the second direction.

2. The electrical connector as claimed in claim 1, wherein the first row of the first receiving slots and the second row of the second receiving slots are spaced apart from each other by a retaining wall of the housing, the first terminal assembly further includes a first shielding shell surrounding the two first terminals, the first shielding shell includes a main body and an enlarged portion extending from the main body along the second direction, the first receiving slots are formed with a first recessed space and a second recessed space, the first recessed space is used for receiving the main body, the second recessed space is used for receiving the enlarged portion, and a recessed depth of the first recessed space is smaller than a recessed depth of the second recessed space.

3. The electrical connector of claim 2, wherein the two sidewalls of the enlarged portion opposite to each other along the second direction are outwardly enlarged relative to the two sidewalls of the main body portion opposite to each other along the second direction, the electrical module further includes a first fixing member, the first fixing member is embedded and fixed to the insulating body from the first side and contacts with the main body portions of the first row, a projection of the first fixing member and the enlarged portion in the first row along the second direction is completely staggered, and the first terminal assembly is located between the first fixing member and the groove surface of the first receiving groove along the second direction.

4. The electrical connector of claim 3, wherein the first fixing member has a plurality of second spokes and at least one first spoke, the plurality of second spokes respectively and correspondingly block the plurality of first terminal assemblies, the first spoke is connected with the plurality of second spokes in a crossing manner, the first spoke has an extension section which extends beyond a side edge of the corresponding one of the second spokes and forms a free end, the extension section is provided with a through hole, and the insulating body is provided with a protruding portion which is fixed in the through hole.

5. The electrical connector of claim 1, wherein the surface of the second terminal assembly has at least one fixing portion, the housing is recessed from the surface of the second receiving cavity to form at least one recess, and the fixing portion is received in the corresponding recess.

6. An electrical connector, comprising at least one electrical module, the electrical module comprising:

a plurality of first terminal assemblies arranged in a first row along a first direction, each of the first terminal assemblies including two first terminals forming a terminal pair, a first insulating block fixing the two first terminals, and a first shield shell covering the first insulating block and the two first terminals, each of the first terminals having a first surface type conductive portion for being soldered to a substrate, the first shield shell having at least one first socket-type soldering portion for being fixed to the substrate;

a plurality of second terminal assemblies arranged in a second row along the first direction, the first row and the second row being disposed adjacent to each other along a second direction perpendicular to the first direction, each of the second terminal assemblies including two second terminals forming a terminal pair, a second insulating block fixing the two second terminals, and a second shielding shell covering the second insulating block and the two second terminals, each of the second terminals being provided with a second surface type guiding portion for welding with the substrate, the second shielding shell having at least one second socket type welding portion for fixing to the substrate;

wherein the first terminals of the first column are completely staggered with the second terminals of the second column in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projection of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projection of the second direction; at least one of the first socket type welding portions is aligned with a corresponding one of the second surface type guiding portions along the second direction, and at least one of the second socket type welding portions is aligned with a corresponding one of the first surface type guiding portions along the second direction.

7. The electrical connector of claim 6, wherein said first shield shell is further provided with at least one first surface type solder portion for soldering to said substrate, and at least one of said second female solder portions is aligned in said second direction with corresponding said first surface type conductive portion and said first surface type solder portion in the same said first terminal assembly.

8. The electrical connector of claim 6, wherein the first shield shell is further provided with at least one first surface type soldering portion for soldering with the substrate, the first surface type soldering portion being located between the second receptacle type soldering portion and the first surface type soldering portion in the second direction.

9. The electrical connector according to claim 6, wherein the first shield shell has two first receptacle-type soldering portions respectively located on both sides of two of the first surface-type lead portions in the arrangement direction of the two first surface-type lead portions, and a shortest center distance of the two first receptacle-type soldering portions adjacently located in the first row along the arrangement direction of the two first surface-type lead portions is defined as a first distance;

the second shielding shell has two second socket type welding portions respectively located at two sides of the two second surface type guiding and connecting portions along the arrangement direction of the two second surface type guiding and connecting portions, and a central distance between the two second surface type guiding and connecting portions in the second terminal assembly is defined as a second distance, wherein the first distance is equal to the second distance.

10. The electrical connector of claim 9, wherein a center distance of each of said first surface-type conduction contact portions and said first female solder portion closest thereto in said first terminal assembly in an arrangement direction of two of said first surface-type conduction contact portions is defined as a third distance, a center distance of each of said second surface-type conduction contact portions and said second female solder portion closest thereto in said second terminal assembly in an arrangement direction of two of said second surface-type conduction contact portions is defined as a fourth distance, and said third distance is equal to said fourth distance.

11. The electrical connector of claim 10, wherein a center distance between two of said first surface-type conduction portions in said first terminal assembly is defined as a fifth distance, and said first distance, said third distance and said fifth distance are equal.

12. The electrical connector of claim 6, wherein the electrical connector includes at least two electrical modules arranged along the second direction, two columns of the first terminal assemblies of two of the electrical modules adjacently disposed along the second direction are aligned along the second direction, and at least one column of the second shield shell has a shield portion located between the first terminals of the two aligned columns of the first terminal assemblies along the second direction.

13. An electrical connector for mating with a mating connector, the electrical connector comprising at least one electrical module, the electrical module comprising:

a plurality of first terminal assemblies arranged in a first row along a first direction, each of the first terminal assemblies including two first terminals forming a terminal pair, a first insulating block fixing the two first terminals, and a first shielding case covering the first insulating block and the two first terminals, each of the first terminals having a first contact portion for mating with the mating connector, a first conductive portion for electrically connecting with an electrical component, and a first connection portion connected to the first contact portion and the first conductive portion, the first conductive portion being bent and extended from the first connection portion toward a second direction perpendicular to the first direction, a distance between the first connection portions of the two first terminals being smaller than a distance between the first conductive portions;

a plurality of second terminal assemblies arranged in a second row along a first direction, the first row and the second row being disposed adjacent to each other along a second direction, each of the second terminal assemblies including two second terminals forming a terminal pair, a second insulating block fixing the two second terminals, and a second shielding case covering the second insulating block and the two second terminals, each of the second terminals having a second contact portion for mating with the mating connector, a second connection portion for electrically connecting with an electrical component, and a second connection portion connected to the second contact portion and the second connection portion, the second connecting parts extend from the second connecting parts towards the second direction in a bending way, and the distance between the second connecting parts of the two second terminals is smaller than that between the second connecting parts;

wherein the first terminals of the first row are completely staggered with the second terminals of the second row in the first direction, the first terminals of the first terminal assemblies are completely staggered with the projections of the second terminals of the second terminal assemblies along the second direction, and the terminal pairs of the first terminal assemblies and the terminal pairs of the second terminal assemblies are alternately arranged along the projections of the second direction.

14. The electrical connector of claim 13, wherein the first shielding shell has a main body portion and a tail portion connected to the main body portion, the main body portion is surrounded by two first connecting portions, the tail portion is surrounded by two first conducting portions, and the first conducting portions are soldered to the surface of the electrical component by solder balls;

the tail portion is provided with two side walls which are oppositely arranged along the second direction, the first guide portion is bent and extended from the first connecting portion towards the second direction so as to be relatively close to one of the side walls of the tail portion and relatively far away from the other side wall of the tail portion, and a space for pre-fixing the solder balls is arranged between the first guide portion and the side wall of the tail portion far away from the first guide portion.

15. The electrical connector according to claim 14, wherein two sidewalls of the tail portion facing each other in the second direction are outwardly expanded from two sidewalls of the body portion facing each other in the second direction, the two sidewalls of the tail portion facing each other in the second direction are respectively equidistant from a center of the pre-fixed solder ball, and the two sidewalls of the body portion facing each other in the second direction are respectively equidistant from the first connecting portion.

16. The electrical connector of claim 13, wherein the electrical connector is adapted to mate with a mating connector, wherein the mating connector is provided with at least two mating terminals and an insulating cover for covering and fixing the two mating terminals, the insulating cover being provided with at least one support portion for supporting the mating terminals;

first shielding shell part encloses to be located the periphery of first contact site and concave be equipped with one dodge the groove, first contact site certainly first connecting portion are followed the second direction towards keep away from in dodge the direction of portion and buckle and extend, the contact surface orientation of first contact site dodge the groove, it is used for dodging to dodge the groove the supporting part.