CN211428493U

CN211428493U - Electric connector, electric connector assembly and electric connector module

Info

Publication number: CN211428493U
Application number: CN202020348014.3U
Authority: CN
Inventors: 吴生玉; 龚传奇; 陈宏基
Original assignee: Dongguan Luxshare Technology Co Ltd
Current assignee: Dongguan Luxshare Technology Co Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-09-04
Anticipated expiration: 2030-03-18
Also published as: TWM604977U

Abstract

An electrical connector includes an insulative housing and a first terminal module. The insulating body is provided with a first accommodating space for accommodating the first terminal module. The first terminal group is provided with a first insulating part and a plurality of first terminals, and the first terminals comprise a plurality of pairs of first signal terminals and a plurality of first grounding terminals. The first insulating portion is provided with a first side surface and a second side surface. The electric connector also comprises a first metal shielding sheet which is arranged on the second side surface and fixed with the first terminal module, the first metal shielding sheet is positioned between the second side surface and the insulating body, and the first metal shielding sheet is contacted with the plurality of first grounding terminals. By the arrangement, the shielding area is increased, and the quality of signal transmission is improved. The utility model discloses still relate to an electric connector assembly and electric connector module including above-mentioned electric connector.

Description

Electric connector, electric connector assembly and electric connector module

Technical Field

The invention relates to an electric connector, an electric connector assembly and an electric connector module, and belongs to the technical field of electric connectors.

Background

The continuous development of interconnection technology puts higher demands on the quality of signal transmission. Prior art electrical connectors typically include a number of signal terminals and a number of ground terminals on either side of each set of signal terminals. However, how to better improve the quality of signal transmission to meet the requirement of high-speed signal transmission is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide an electric connector, an electric connector assembly and an electric connector module which can improve the quality of signal transmission.

In order to achieve the purpose, the invention adopts the following technical scheme: an electric connector comprises an insulating body and a first terminal module mounted to the insulating body, wherein the insulating body is provided with a first accommodating space for accommodating the first terminal module; the first terminal group is provided with a first insulating part and a plurality of first terminals fixed on the first insulating part, and the first terminals comprise a plurality of pairs of first signal terminals and a plurality of first grounding terminals; the first insulating part is provided with a first side surface and a second side surface opposite to the first side surface, wherein the first terminals are provided with a plurality of first contact parts exposed on the first side surface; the electric connector also comprises a first metal shielding sheet which is arranged on the second side surface and fixed with the first terminal module, the first metal shielding sheet is positioned between the second side surface and the insulating body, and the first metal shielding sheet is contacted with the plurality of first grounding terminals.

As a further improved technical solution of the present invention, the first insulating portion is provided with a plurality of first grooves located on the second side surface, the plurality of first ground terminals are respectively exposed in the first grooves, the first metal shielding plate is provided with a plurality of first protrusions protruding toward the corresponding first grooves, and the plurality of first protrusions are connected to the corresponding first ground terminals.

As a further improved technical solution of the present invention, the plurality of first protruding portions and the corresponding first ground terminal are fixedly connected by solder, conductive glue or conductive film.

As a further improved technical solution of the present invention, the plurality of pairs of first signal terminals at least include a pair of first signal terminals that cross each other, and the at least a pair of first signal terminals that cross each other form a first cross structure together.

As a further improved technical solution of the present invention, the first insulating portion is provided with at least one second groove located on the first side surface, and the first crossing structure is exposed in the second groove.

As a further improved technical solution of the present invention, the electrical connector includes a second terminal module mounted to the insulating housing, the insulating housing is provided with a second accommodating space for accommodating the second terminal module, and the first accommodating space and the second accommodating space are respectively located at two sides of the insulating housing; the second terminal module is provided with a second insulating part and a plurality of second terminals fixed on the second insulating part, and the plurality of second terminals comprise a plurality of pairs of second signal terminals and a plurality of second grounding terminals; the second insulating part is provided with a third side face and a fourth side face opposite to the third side face, wherein the second terminals are provided with second contact parts exposed on the third side face; the electric connector further comprises a second metal shielding sheet which is arranged on the fourth side face and fixed with the second terminal module, the second metal shielding sheet is located between the fourth side face and the insulating body, and the second metal shielding sheet is in contact with the second grounding terminals.

As a further improved technical solution of the present invention, the first terminal and the first insulating portion are fixed together by insert injection molding.

As a further improved technical solution of the present invention, the first terminal module and the first metal shielding plate are fixed together by hot melting or welding.

The invention also relates to an electric connector assembly, which comprises a first electric connector, a second electric connector and a switching connector for connecting the first electric connector and the second electric connector, wherein the first electric connector and/or the second electric connector are/is the electric connectors, the switching connector comprises a first connecting part and a second connecting part which are opposite to each other, the first terminal module in the first electric connector is connected with the first connecting part, and the first terminal module in the second electric connector is connected with the second connecting part.

As a further improved technical solution of the present invention, the pairs of first signal terminals of the first electrical connector are all in a non-crossing structure; the pairs of first signal terminals of the second electrical connector include at least one pair of interdigitated first signal terminals that collectively form a first cross-structure.

The invention also relates to an electric connector module, which comprises a plurality of electric connectors and a bracket for bearing the electric connectors, wherein the bracket and the electric connectors are connected into a whole.

As a further improved technical scheme of the invention, the plurality of electric connectors are arranged in parallel and side by side.

As a further improved technical scheme of the invention, the insulating bodies of the plurality of electric connectors and the bracket are fixed together in a buried injection molding mode.

Compared with the prior art, the electrical connector further comprises a first metal shielding sheet which is installed on the second side surface and fixed with the first terminal module, the first metal shielding sheet is located between the second side surface and the insulating body, and the first metal shielding sheet is in contact with the first grounding terminals. By the arrangement, the shielding area is increased, and the quality of signal transmission is improved.

Drawings

Fig. 1 is a perspective view of a first electrical connector of the present invention.

Fig. 2 is a perspective view of fig. 1 from another angle.

Fig. 3 is a partially exploded perspective view of fig. 1.

Fig. 4 is a partially exploded perspective view of fig. 2.

Fig. 5 is a further exploded perspective view of fig. 3.

Fig. 6 is a further exploded perspective view of fig. 4.

Fig. 7 is a further exploded perspective view of fig. 5.

Fig. 8 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 9 is a perspective view of a second electrical connector of the present invention.

Fig. 10 is a perspective view of fig. 9 from another angle.

Fig. 11 is a partial exploded perspective view of fig. 9 with the first terminal separated.

Fig. 12 is a partially exploded perspective view of fig. 10 with the second terminal separated.

Fig. 13 is a perspective view of the electrical connector assembly of the present invention.

Fig. 14 is a front view of fig. 13 and schematically shows the mounting to the circuit board.

Fig. 15 is a partially exploded perspective view of fig. 14.

Fig. 16 is a partially exploded perspective view of the transition connector of fig. 15.

Fig. 17 is a perspective view of the electrical connector module of the present invention.

Fig. 18 is a partially exploded perspective view of fig. 17.

Detailed Description

Referring to fig. 1 to 8, the present invention discloses a first electrical connector 100, which includes an insulative housing 3, a first terminal module 1 mounted to the insulative housing 3, a first metallic shielding plate 4 fixed to the first terminal module 1, a second terminal module 2 mounted to the insulative housing 3, and a second metallic shielding plate 5 fixed to the second terminal module 2.

Referring to fig. 3 and 4, the insulating main body 3 includes a main body 31, a guide portion 32 extending from one end of the main body 31, and a mounting portion 33 extending from the other end of the main body 31. The body 31 has a first receiving space 311 for receiving the first terminal module 1 and a second receiving space 312 for receiving the second terminal module 2. The first receiving space 311 and the second receiving space 312 are respectively located at two sides of the main body 31. The insulating housing 3 further has a plurality of first positioning grooves 3111 communicated with the first receiving space 311, a plurality of first engaging grooves 3112 for fixing the first metal shielding plate 4, a plurality of second positioning grooves 3121 communicated with the second receiving space 312, and a plurality of second engaging grooves 3122 for fixing the second metal shielding plate 5. The guiding portion 32 is more contracted than the main body portion 31 and has a first inclined surface 321 and a second inclined surface 322, wherein the first positioning groove 3111 extends upward through a portion of the first inclined surface 321, and the second positioning groove 3121 extends upward through a portion of the second inclined surface 322.

As shown in fig. 3 to fig. 7, the first terminal module 1 has a first insulating portion 10 and a plurality of first terminals 11 fixed on the first insulating portion 10. Referring to fig. 7, the first terminals 11 include pairs of first signal terminals S1 and first ground terminals G1. The first ground terminals G1 are respectively disposed on two sides of each pair of first signal terminals S1 to improve the quality of signal transmission. The first insulating portion 10 has a first side surface 101 (see fig. 3) and a second side surface 102 (see fig. 6) opposite to the first side surface 101, wherein the first terminal 11 has a first contact portion 111 exposed on the first side surface 101, a first positioning portion 112 extending upward beyond the first insulating portion 10, and a first mounting foot 113 extending downward beyond the first insulating portion 10. In the illustrated embodiment of the present invention, the first positioning portion 112 of the first signal terminal S1 is aligned with the first contact portion 111 of the first signal terminal S1; the first positioning portion 112 of the first ground terminal G1 is substantially L-shaped, and includes a first bending portion 1121 at the top end, and the first bending portion 1121 is perpendicular to the first contact portion 111 of the first ground terminal G1. In some embodiments, the first positioning portion 112 of the first ground terminal G1 is aligned with the first contact portion 111 of the first ground terminal G1; the first positioning portion 112 of the first ground terminal G1 may not have the first bending portion 1121, but may be straight with the first contact portion 111. In one embodiment of the present invention, the first terminal 11 and the first insulating portion 10 are fixed together by Insert injection Molding (Insert Molding).

The first metallic shielding plate 4 is mounted on the second side 102 of the first insulating portion 10 and fixed with the first terminal module 1. The first metal shielding plate 4 is located between the second side surface 102 and the insulating body 3, and the first metal shielding plate 4 is in contact with the first ground terminals G1 to increase a ground area and improve a shielding effect. In one embodiment of the present invention, the first terminal module 1 and the first metal shielding plate 4 are fixed together by heat fusion or welding.

In the illustrated embodiment of the present invention, the first insulating portion 10 is provided with a plurality of first grooves 103 (see fig. 6) on the second side surface 102, and the plurality of first ground terminals G1 are respectively exposed in the first grooves 103. The first metal shielding plate 4 is provided with a plurality of first protrusions 41 protruding toward the corresponding first grooves 103, and the plurality of first protrusions 41 are connected to the corresponding first ground terminals G1. In one embodiment of the present invention, the first protruding portions 41 and the corresponding first ground terminals G1 are fixedly connected by solder, conductive glue or conductive film. The first metal shielding plate 4 is further provided with a first locking block 40 (please refer to fig. 3 and 4) fixed in the first locking slot 3112.

As shown in fig. 3 to fig. 7, the second terminal module 2 is provided with a second insulating portion 20 and a plurality of second terminals 21 fixed on the second insulating portion 20. Referring to fig. 7, the second terminals 21 include pairs of second signal terminals S2 and second ground terminals G2. Two sides of each pair of the second signal terminals S2 are respectively provided with a second ground terminal G2, so as to improve the quality of signal transmission. The second insulating portion 20 has a third side surface 201 (see fig. 4) and a fourth side surface 202 (see fig. 5) opposite to the third side surface 201, wherein the second terminal 21 has a second contact portion 211 exposed on the third side surface 201, a second positioning portion 212 extending upward beyond the second insulating portion 20, and a second mounting foot 213 extending downward beyond the second insulating portion 20. In the illustrated embodiment of the present invention, the second positioning portion 212 of the second signal terminal S2 is disposed in alignment with the second contact portion 211 of the second signal terminal S2; the second positioning portion 212 of the second ground terminal G2 is substantially L-shaped, and includes a second bent portion 2121 at a top end, and the second bent portion 2121 is perpendicular to the second contact portion 211 of the second ground terminal G2. In some embodiments, the second positioning portion 212 of the second ground terminal G2 is disposed in alignment with the second contact portion 211 of the second ground terminal G2; the second positioning portion 212 of the second ground terminal G2 may not have the second bent portion 2121, but may be straight with the second contact portion 211. In one embodiment of the present invention, the second terminal 21 and the second insulating portion 20 are fixed together by Insert Molding (Insert Molding).

The second metal shielding plate 5 is mounted on the fourth side surface 202 of the second insulating portion 20 and fixed to the second terminal module 2. The second metal shielding plate 5 is located between the fourth side 202 and the insulating body 3, and the second metal shielding plate 5 is in contact with the second ground terminals G2, so as to increase the ground area and improve the shielding effect. In one embodiment of the present invention, the second terminal module 2 and the second metal shielding plate 5 are fixed together by heat fusion or welding.

In the illustrated embodiment of the present invention, the second insulating portion 20 is provided with a plurality of third grooves 203 (see fig. 5) on the fourth side 202, and the plurality of second ground terminals G2 are respectively exposed in the third grooves 203. The second metal shielding plate 5 is provided with a plurality of second protrusions 51 protruding toward the corresponding third grooves 203, and the plurality of second protrusions 51 are connected to the corresponding second ground terminals G2. In one embodiment of the present invention, the second protrusions 51 and the corresponding second ground terminals G2 are fixedly connected by solder, conductive glue or conductive film. The second metal shielding plate 5 is further provided with a second latch 50 (please refer to fig. 3 and 5) fixed in the second latch 3122.

Referring to fig. 9 to 12, the present invention discloses a second electrical connector 200, which has the same structure as the first electrical connector 100 for the most part, and the main difference between the two is: in the first connector 100, the pairs of first signal terminals S1 and the pairs of second signal terminals S2 are all in a non-crossing structure, that is, there is no overlapping portion between each pair of first signal terminals S1 in a direction perpendicular to the first and second side surfaces 101 and 102 of the first insulating portion 10 (i.e., the thickness direction of the first insulating portion 10), there is no overlapping portion between each pair of second signal terminals S2 in a direction perpendicular to the third and fourth side surfaces 201 and 202 of the second insulating portion 20 (i.e., the thickness direction of the second insulating portion 20), and each pair of first signal terminals S1 and each pair of second signal terminals S2 of the first connector 100 are in a straight strip shape; in the second electrical connector 200, at least one of the pairs of first signal terminals S1 includes a pair of first signal terminals S1 that cross each other, and at least one of the pairs of second signal terminals S2 includes a pair of second signal terminals S2 that cross each other. The at least one pair of interdigitated first signal terminals S1 collectively form a first cross structure X1, and the at least one pair of interdigitated second signal terminals S2 collectively form a second cross structure X2. In the present embodiment, in the second electrical connector 200, the pairs of first signal terminals S1 include a plurality of pairs of intersecting first signal terminals S1, and a pair of non-intersecting first signal terminals S1 is provided between two adjacent pairs of intersecting first signal terminals S1; the pairs of second signal terminals S2 include pairs of second signal terminals S2 that cross each other, and a pair of second signal terminals S2 that do not cross each other is disposed between two adjacent pairs of second signal terminals S2 that cross each other.

Referring to fig. 9, in the second electrical connector 200, the first insulating portion 10 is provided with at least one second groove 104 on the first side 101, the first cross structure X1 is exposed in the second groove 104, and the first cross structure X1 is exposed to air; referring to fig. 10, the second insulating portion 20 is provided with at least one fourth groove 204 on the third side 201, and the second cross structure X2 is exposed in the fourth groove 204, so that the second cross structure X2 is exposed in the air. In the illustrated embodiment of the present invention, the first crossing structures X1 are overlapped but not in contact in a direction perpendicular to the first and second side surfaces 101, 102 of the first insulating portion 10 (i.e., the thickness direction of the first insulating portion 10); the second crossing structure X2 overlaps but does not contact in a direction perpendicular to the third and

fourth sides

201 and 202 of the second insulating portion 20 (i.e., the thickness direction of the second insulating portion 20).

By providing the second groove 104 and the fourth groove 204, the first cross structure X1 and the second cross structure X2 are exposed to air, which is beneficial to positioning the plastic mold on one hand, and improving Signal Integrity (SI) on the other hand, such as improving signal delay and adjusting impedance. In other words, if the first cross structure X1 and the second cross structure X2 are enclosed in the insulating part, the straight signal terminals next to the first cross structure X1 and the second cross structure X2 form a large delay difference with the cross signal terminals, which is not favorable for improving the quality of signal transmission.

Referring to fig. 13 to 16, the present invention further discloses an electrical connector assembly, which includes a first electrical connector 100, a second electrical connector 200, and a adaptor connector 300 connecting the first electrical connector 100 and the second electrical connector 200. The adapter connector 300 includes a first connection portion 301 and a second connection portion 302 opposite to each other, wherein the first terminal module 1 and the second terminal module 2 of the first electrical connector 100 are connected to the first connection portion 301, and the first terminal module 1 and the second terminal module 2 of the second electrical connector 200 are connected to the second connection portion 302. Referring to fig. 14, the first electrical connector 100 is configured to be mounted on a first circuit board 109, and the second electrical connector 200 is configured to be mounted on a second circuit board 209. In one embodiment of the present invention, the first circuit board 109 is parallel to the second circuit board 209.

Referring to fig. 16, the adaptor connector 300 includes a first adaptor housing 303, a second adaptor housing 304, and a terminal assembly 305, wherein the first adaptor housing 303 and the second adaptor housing 304 are assembled with each other, and the terminal assembly 305 is accommodated in the first adaptor housing 303 and the second adaptor housing 304. The terminal assembly 305 is provided with a first terminal holding portion 3051 in the first connecting portion 301 and a second terminal holding portion 3052 in the second connecting portion 302. The first terminal holding part 3051 is configured to contact the first terminal 11 and the second terminal 21 of the first electrical connector 100, and the second terminal holding part 3052 is configured to contact the first terminal 11 and the second terminal 21 of the second electrical connector 200.

Referring to fig. 17 and 18, the present invention further discloses an electrical connector module, which includes a plurality of electrical connectors and a bracket 400 for carrying the electrical connectors, wherein the bracket 400 is connected with the electrical connectors as a whole, so that the electrical connector module has a relatively high signal transmission capability. The plurality of electrical connectors are parallel to each other and arranged side by side. The insulating bodies of the plurality of electrical connectors and the bracket 400 are fixed together by embedding and injection molding. In an embodiment of the present invention, the plurality of electrical connectors are the plurality of first electrical connectors 100 and/or the plurality of second electrical connectors 200. The electrical connector is a generic concept of the first electrical connector 100 and the second electrical connector 200.

Compared with the prior art, the electric connector is provided with the metal shielding sheet which is arranged on the side surface of the insulating part and is fixed with the terminal module, the metal shielding sheet is positioned between the insulating part and the insulating body, and the metal shielding sheet is contacted with the grounding terminal. By the arrangement, the shielding area is increased, and the quality of signal transmission is improved. In addition, the signal terminals of the electrical connector are provided with the cross structures, so that the signal transmission rate can be improved, and the influence of crosstalk and resonance can be 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 specification should be based on the technical personnel in the technical field, such as the description of the directions of "upper", "lower", etc., and although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions on the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims

1. An electrical connector (100, 200) comprising an insulative housing (3) and a first terminal module (1) mounted to the insulative housing (3), the insulative housing (3) being provided with a first receiving space (311) for receiving the first terminal module (1); the method is characterized in that: the first terminal module (1) is provided with a first insulating part (10) and a plurality of first terminals (11) fixed on the first insulating part (10), wherein the plurality of first terminals (11) comprise a plurality of pairs of first signal terminals (S1) and a plurality of first ground terminals (G1); the first insulating portion (10) is provided with a first side surface (101) and a second side surface (102) opposite to the first side surface (101), wherein the first terminals (11) are provided with first contact portions (111) exposed on the first side surface (101); the electrical connector (100, 200) further comprises a first metal shielding sheet (4) mounted on the second side surface (102) and fixed with the first terminal module (1), the first metal shielding sheet (4) is located between the second side surface (102) and the insulating body (3), and the first metal shielding sheet (4) is in contact with the first ground terminals (G1).

2. The electrical connector (100, 200) of claim 1, wherein: the first insulating part (10) is provided with a plurality of first grooves (103) located on the second side surface (102), the plurality of first ground terminals (G1) are respectively exposed in the first grooves (103), the first metal shielding plate (4) is provided with a plurality of first protrusions (41) protruding towards the corresponding first grooves (103), and the plurality of first protrusions (41) are connected with the corresponding first ground terminals (G1).

3. The electrical connector (100, 200) of claim 2, wherein: the first bulges (41) are fixedly connected with the corresponding first ground terminal (G1) through solder, conductive glue or conductive film.

4. The electrical connector (100, 200) of claim 1, wherein: at least one pair of the first signal terminals (S1) of the plurality of pairs of first signal terminals (S1) cross each other, and the at least one pair of the first signal terminals (S1) cross each other to form a first cross structure (X1).

5. The electrical connector (100, 200) of claim 4, wherein: the first insulating portion (10) is provided with at least one second groove (104) on the first side (101), the first crossing structure (X1) being exposed within the second groove (104).

6. The electrical connector (100, 200) of claim 1, wherein: the electrical connector (100, 200) comprises a second terminal module (2) mounted to the insulating body (3), the insulating body (3) is provided with a second accommodating space (312) for accommodating the second terminal module (2), and the first accommodating space (311) and the second accommodating space (312) are respectively located on two sides of the insulating body (3); the second terminal module (2) is provided with a second insulating part (20) and a plurality of second terminals (21) fixed on the second insulating part (20), and the plurality of second terminals (21) comprise a plurality of pairs of second signal terminals (S2) and a plurality of second grounding terminals (G2); the second insulating part (20) is provided with a third side surface (201) and a fourth side surface (202) opposite to the third side surface (201), wherein the second terminals (21) are provided with second contact parts (211) exposed on the third side surface (201); the electrical connector (100, 200) further comprises a second metal shielding plate (5) mounted on the fourth side surface (202) and fixed with the second terminal module (2), the second metal shielding plate (5) is located between the fourth side surface (202) and the insulating body (3), and the second metal shielding plate (5) is in contact with the second ground terminals (G2).

7. The electrical connector (100, 200) of claim 1, wherein: the first terminal (11) and the first insulating part (10) are fixed together by means of insert injection molding.

8. The electrical connector (100, 200) of claim 7, wherein: the first terminal module (1) and the first metal shielding sheet (4) are fixed together in a hot melting or welding mode.

9. An electrical connector assembly comprising a first electrical connector (100), a second electrical connector (200), and a transition connector (300) connecting the first electrical connector (100) with the second electrical connector (200), characterized in that: the first electrical connector (100) is according to any one of claims 1 to 3 and 6 to 8, the second electrical connector (200) is according to any one of claims 1 to 3 and 6 to 8, and the adaptor connector (300) comprises a first connecting portion (301) and a second connecting portion (302) opposite to each other, wherein the first terminal module (1) in the first electrical connector (100) is connected with the first connecting portion (301), and the first terminal module (1) in the second electrical connector (200) is connected with the second connecting portion (302).

10. The electrical connector assembly of claim 9, wherein: the pairs of first signal terminals (S1) of the first electrical connector (100) are all in a non-crossing structure; the pairs of first signal terminals (S1) of the second electrical connector (200) include at least one pair of interdigitated first signal terminals (S1), the at least one pair of interdigitated first signal terminals (S1) collectively forming a first crossover structure (X1).

11. An electrical connector module comprising a plurality of electrical connectors (100, 200) according to any one of claims 1 to 8 and a carrier (400) for carrying the plurality of electrical connectors (100, 200), characterized in that: the bracket (400) is connected with the plurality of electric connectors (100, 200) into a whole.

12. The electrical connector module of claim 11, wherein: the plurality of electrical connectors (100, 200) are arranged parallel and side by side to each other.

13. The electrical connector module of claim 11, wherein: the insulating bodies (3) of the electric connectors (100, 200) and the bracket (400) are fixed together in a buried injection molding mode.