CN112134098A - Socket connector, plug connector and connector assembly - Google Patents

Abstract

Receptacle connectors, plug connectors and connector assemblies. The invention discloses a socket connector, comprising: a first housing; and a plurality of terminal modules installed in the first housing, each terminal module comprising a plurality of pairs of first signal terminals and a first grounding shield. The first grounding shield includes multiple sets of grounding springs corresponding to each pair of first signal terminals; at least one group of grounding springs includes a first grounding spring and a second grounding spring, the first grounding spring and the second grounding spring The ground spring sheets are arranged substantially perpendicular to each other and are respectively located on adjacent two sides of the pair of first signal terminals. In the present invention, the ground spring of the socket connector is in electrical contact with the two side walls of the ground shield of the plug connector respectively, so that the signal crosstalk between the signal terminals can be effectively reduced, and the resonance of the signal terminals can be reduced or eliminated. Improved signal transmission quality.

Description

Receptacle Connectors, Plug Connectors and Connector Assemblies

technical field

The present invention relates to a socket connector, a plug connector and a connector assembly including the socket connector and the plug connector.

Background technique

In the prior art, high-speed signal connectors generally include receptacle connectors and plug connectors that are adapted to mate with each other. Typically, a header connector includes multiple pairs of differential signal terminals and a ground shield disposed adjacent each pair of differential signal terminals. The ground shield of the header connector has first and second side walls abutting and substantially perpendicular to each other, such that the cross section of the ground shield of the header connector is generally L-shaped. Similarly, a receptacle connector includes pairs of differential signal terminals and a ground shield disposed adjacent each pair of differential signal terminals. In the prior art, the ground shield of the receptacle connector has a ground spring, the ground spring is only in electrical contact with the first side wall of the ground shield of the plug connector, and is in electrical contact with the second side of the ground shield of the plug connector The wall is not in contact, which causes the second side wall of the ground shield of the plug connector to be in an empty state all the time, and there is no ground spring in contact with it to form a ground loop, which causes the signal terminal to resonate at a certain frequency of use, so that in the The signal crosstalk pull-down is not significant in the entire frequency domain, which reduces the signal transmission quality.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and deficiencies in the prior art.

According to one aspect of the present invention, there is provided a receptacle connector adapted to mate with a plug connector. The socket connector includes: a first housing; and a plurality of terminal modules mounted in the first housing, each terminal module comprising a plurality of pairs of first signal terminals and a first ground shield. The first grounding shield includes multiple sets of grounding springs corresponding to each pair of first signal terminals; at least one group of grounding springs includes a first grounding spring and a second grounding spring, the first grounding spring and the second grounding spring The ground spring sheets are arranged substantially perpendicular to each other and are respectively located on two adjacent sides of the pair of first signal terminals.

According to an exemplary embodiment of the present invention, each of the terminal modules further includes a sheet-shaped insulator, and the plurality of pairs of first signal terminals and the first ground shield are fixed and held on the sheet-shaped insulator. on the insulator.

According to another exemplary embodiment of the present invention, a plurality of pairs of first signal terminals in each of the terminal modules are arranged in a row in a width direction of the sheet insulator.

According to another exemplary embodiment of the present invention, the first signal terminal and the first ground shield of the receptacle connector have connection pins adapted to be electrically connected to the first circuit board, the connection pins being along the The width direction of the sheet insulator protrudes from the bottom side of the sheet insulator.

According to another exemplary embodiment of the present invention, the socket connector further includes a fixing seat, and the first signal terminal of the socket connector and the connecting pin of the first ground shield are held on the fixing seat. in the jack.

According to another exemplary embodiment of the present invention, the first signal terminal has a signal contact spring, and a group of ground springs is arranged near the signal contact spring of each pair of the first signal terminals.

According to another exemplary embodiment of the present invention, the signal contact elastic sheet and the grounding elastic sheet protrude from one end of the sheet insulator along the length direction of the sheet insulator.

According to another exemplary embodiment of the present invention, the first grounding shield has a plate-shaped body portion, and the plate-shaped body portion of the first grounding shield is attached to an outer side surface of the sheet-shaped insulator.

According to another aspect of the present invention, there is provided a plug connector suitable for mating with the aforementioned receptacle connector.

According to an exemplary embodiment of the present invention, the plug connector includes: a second housing; a plurality of rows of terminal units mounted in the second housing, each terminal unit including a pair of second signal terminals and a second ground shield, each of the second ground shields including first and second side walls adapted to be in electrical contact with the first and second ground springs of the first ground shield, respectively .

According to another exemplary embodiment of the present invention, the first side wall and the second side wall of the second grounding shield are adjacent to each other and are substantially vertical, so that the cross-section of the second grounding shield is substantially L-shaped; The first side wall and the second side wall of each of the second ground shields are arranged in the vicinity of the corresponding pair of second signal terminals.

According to another exemplary embodiment of the present invention, each terminal module of the socket connector corresponds to a row of terminal units of the plug connector; a plurality of pairs of first signals in each terminal module The terminals are in electrical contact with a plurality of pairs of second signal terminals in a corresponding row of terminal units respectively; a plurality of groups of grounding elastic sheets in each of the terminal modules are respectively connected with a plurality of second grounding shields in the corresponding row of terminal units electrical contact.

According to another exemplary embodiment of the present invention, each of the second signal terminals includes a signal contact portion, and the signal contact elastic sheet of the first signal terminal is adapted to be elastically electrically connected to the signal contact portion of the second signal terminal. touch.

According to another exemplary embodiment of the present invention, the second signal terminal and the second ground shield have connection pins protruding from the second housing, and the connection pins are adapted to be electrically connected to on the second circuit board.

According to another exemplary embodiment of the present invention, each of the second ground shields has a pair of connection pins, and the connection pins of each pair of second signal terminals are located on a pair of connection pins of a corresponding second ground shield. between.

According to another aspect of the present invention, there is provided a connector assembly including the aforementioned receptacle connector and plug connector.

In each of the foregoing exemplary embodiments of the present invention, the ground shield of the receptacle connector includes two ground springs in electrical contact with two side walls of the ground shield of the plug connector, respectively, so that the ground shield of the plug connector The two side walls of the component can form ground loops through ground spring sheets, so that the signal crosstalk between the signal terminals can be effectively reduced, the resonance of the signal terminals can be reduced or eliminated, and the signal transmission quality can be improved.

Other objects and advantages of the present invention will be apparent from the following description of the present invention with reference to the accompanying drawings, and may assist in a comprehensive understanding of the present invention.

Description of drawings

1 shows a schematic perspective view of a plug connector and a receptacle connector mated together according to an exemplary embodiment of the present invention;

Figure 2a shows an exploded schematic view of the receptacle connector shown in Figure 1;

FIG. 2b shows an enlarged schematic view of a terminal module in FIG. 2a;

FIG. 3 shows a schematic perspective view of the plug connector shown in FIG. 1;

FIG. 4 shows an exploded schematic view of the plug connector shown in FIG. 3;

FIG. 5 shows a schematic diagram of a terminal unit of the plug connector shown in FIG. 4;

FIG. 6 shows a schematic diagram of the ground shield of the plug connector shown in FIG. 1 in contact with the ground shield of the receptacle connector.

Detailed ways

The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals refer to the same or similar parts. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, and should not be construed as a limitation of the present invention.

According to a general technical concept of the present invention, there is provided a socket connector suitable for mating with a plug connector. The socket connector includes: a first housing; and a plurality of terminal modules mounted in the first housing, each terminal module comprising a plurality of pairs of first signal terminals and a first ground shield. The first grounding shield includes multiple sets of grounding springs corresponding to each pair of first signal terminals; at least one group of grounding springs includes a first grounding spring and a second grounding spring, the first grounding spring and the second grounding spring The ground spring sheets are arranged substantially perpendicular to each other and are respectively located on two adjacent sides of the pair of first signal terminals.

1 shows a schematic perspective view of a plug connector 200 and a receptacle connector 100 mated together according to an exemplary embodiment of the present invention. FIG. 2a shows an exploded schematic view of the receptacle connector 100 shown in FIG. 1 . FIG. 2b shows an enlarged schematic view of a terminal module in FIG. 2a.

As shown in FIGS. 1 , 2 a and 2 b , in the illustrated embodiment, the socket connector 100 mainly includes a first housing 110 and a plurality of terminal modules 12 . A plurality of terminal modules 12 are installed in the first housing 110 .

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, each terminal module 12 includes multiple pairs of first signal terminals 121 (or multiple pairs of first differential signal terminals) and a first signal terminal pair 121 . A ground shield 122 .

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, the first ground shielding member 122 includes a plurality of sets of ground spring pieces 122 a 1 and 122 a 2 corresponding to each pair of the first signal terminals 121 respectively, that is, each set of ground spring pieces 122 a 1 and 122 a 2 respectively The ground springs 122a1 and 122a2 correspond to a pair of first signal terminals 121 .

FIG. 3 shows a schematic perspective view of the plug connector 200 shown in FIG. 1 ; FIG. 4 shows an exploded schematic view of the plug connector 200 shown in FIG. 3 ; FIG. 5 shows a terminal unit 22 of the plug connector 200 shown in FIG. 4 . Schematic diagram; FIG. 6 shows a schematic diagram of the ground shield 222 of the plug connector 200 shown in FIG. 1 in contact with the ground shield 122 of the receptacle connector 100 .

As shown in FIGS. 1 to 6 , in the illustrated embodiment, at least one group of grounding elastic pieces 122a1 and 122a2 includes a first grounding elastic piece 122a1 and a second grounding elastic piece 122a2 . As clearly shown in FIG. 2 b , the first ground spring 122 a 1 and the second ground spring 122 a 2 are arranged to be substantially perpendicular to each other and located on two adjacent sides of the pair of first signal terminals 121 respectively. In this way, as shown in FIG. 6 , the first grounding spring pieces 122a1 and the second grounding spring pieces 122a2 of the first grounding shield 122 are adapted to be adapted to the adjacent first sidewalls 222a1 and the second grounding shields 222 of the header connector 200 . The two side walls 222a2 are respectively in electrical contact.

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, each terminal module 12 further includes a sheet insulator 120 , and a plurality of pairs of first signal terminals 121 and first ground shielding members 122 are fixed and held on the sheet insulator 120 .

As shown in FIGS. 1 , 2 a and 2 b , in the illustrated embodiment, a plurality of pairs of first signal terminals 121 in each terminal module 12 are arranged in a row in the width direction X of the sheet insulator 120 .

As shown in FIGS. 1, 2a, and 2b, in the illustrated embodiment, the first signal terminals 121 and the first ground shields 122 of the receptacle connector 100 have electrical connections suitable for electrical connection to a first circuit board (not shown). The connecting pins 121b and 122b shown in the figure) protrude from the bottom side of the sheet insulator 120 along the width direction X of the sheet insulator 120 .

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, the socket connector 100 further includes a fixing base 13 , and the connection between the first signal terminal 121 of the socket connector 100 and the first ground shielding member 122 The feet 121b, 122b are held in the receptacles of the holder 13. As shown in FIG.

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, the first signal terminal 121 has a signal contact spring 121 a , and a set of grounding is arranged near the signal contact spring 121 a of each pair of the first signal terminals 121 . Shrapnel 122a1, 122a2.

As shown in FIGS. 1 , 2 a and 2 b , in the illustrated embodiment, the signal contact springs 121 a and the ground springs 122 a 1 and 122 a 2 protrude from one end of the sheet insulator 120 along the length direction Y of the sheet insulator 120 .

As shown in FIG. 1 , FIG. 2 a and FIG. 2 b , in the illustrated embodiment, the first ground shield 122 has a plate-shaped main body, and the plate-shaped main body of the first ground shield 122 is attached to the sheet insulator 120 on the outer side.

As shown in FIGS. 1 to 6 , in the illustrated embodiment, the present application further discloses a plug connector 200 which is suitable for mating with the aforementioned receptacle connector 100 .

As shown in FIGS. 1 to 6 , in the illustrated embodiment, the plug connector 200 mainly includes: a second housing 210 and multiple rows of terminal units 22 . Multiple rows of terminal units 22 are installed in the second housing 210 .

As shown in FIGS. 1 to 6 , in the illustrated embodiment, each terminal unit 22 includes a pair of second signal terminals (or a second differential signal terminal pair) 221 and a second ground shield 222 .

As shown in FIGS. 1 to 6 , in the illustrated embodiment, each of the second ground shields 222 includes a first ground spring 122a1 and a second ground spring 122a2 adapted to be in electrical contact with the first ground spring 122a1 and the second ground spring 122a2 respectively. The first side wall 222a1 and the second side wall 222a2 are formed.

As shown in FIGS. 1 to 6 , in the illustrated embodiment, the first sidewall 222a1 and the second sidewall 222a2 of the second ground shield 222 abut and are substantially vertical such that the cross section of the second ground shield 222 Roughly L-shaped.

As shown in FIGS. 1 to 6 , in the illustrated embodiment, the first sidewall 222a1 and the second sidewall 222a2 of the second ground shield 222 are arranged in the vicinity of the corresponding pair of second signal terminals 221 .

As shown in FIGS. 1 to 6 , in the illustrated embodiment, each terminal module 12 of the receptacle connector 100 corresponds to a row of terminal units 22 of the plug connector 200 . The pairs of first signal terminals 121 in each terminal module 12 are respectively in electrical contact with the pairs of second signal terminals 221 in the corresponding row of terminal units 22 . The plurality of sets of grounding elastic pieces 122a1 and 122a2 in each terminal module 12 are in electrical contact with the plurality of second grounding shields 222 in the corresponding row of terminal units 22, respectively.

As shown in FIGS. 1 to 6 , in the illustrated embodiment, each second signal terminal 221 includes a signal contact portion 221 a, and the signal contact spring 121 a of the first signal terminal 121 is adapted to communicate with the signal of the second signal terminal 221 The contact portion 221a is in elastic electrical contact. In the illustrated embodiment, each of the second signal terminals 221 includes a signal contact portion 221a in a column shape.

As shown in FIG. 1 to FIG. 6 , in the illustrated embodiment, the second signal terminal 221 and the second ground shield 222 have connection pins 221b and 222b protruding from the second housing 210 , and the second signal The terminals 221 and the connecting pins 221b and 222b of the second ground shielding member 222 are suitable for being electrically connected to the second circuit board (not shown).

As shown in FIG. 1 to FIG. 6 , in the illustrated embodiment, each second ground shield 222 has a pair of connecting pins 222 b, and the connecting pins 221 b of each pair of second signal terminals 221 are located at a corresponding second ground between a pair of connecting pins 222b of the shielding member 222 .

As shown in FIG. 1 , in another exemplary embodiment of the present application, a connector assembly is also disclosed, including the aforementioned receptacle connector 100 and the aforementioned plug connector 200 .

Although the present invention has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

Although some embodiments of the present general inventive concept have been shown and described, those of ordinary skill in the art will understand that changes may be made in these embodiments and various The structures described in the embodiments can be freely combined without conflicting structures or principles, and the scope of the present invention is defined by the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element numbers in the claims should not be construed as limiting the scope of the invention.

Claims (16)

1. A receptacle connector adapted to mate with a plug connector (200), the receptacle connector (100) comprising:

a first housing (110); and

a plurality of terminal modules (12) mounted in the first housing (110),

each terminal module (12) including a plurality of pairs of first signal terminals (121) and a first ground shield (122),

the method is characterized in that:

the first ground shield (122) comprises a plurality of sets of ground domes (122a1, 122a2) corresponding to each pair of first signal terminals (121);

the at least one set of grounding shrapnels (122a1, 122a2) comprises a first grounding shrapnel (122a1) and a second grounding shrapnel (122a2), and the first grounding shrapnel (122a1) and the second grounding shrapnel (122a2) are configured to be approximately perpendicular to each other and respectively located at two adjacent sides of the pair of first signal terminals.

2. The receptacle connector according to claim 1, wherein:

each of the terminal modules (12) further includes a sheet-like insulator (120), and the plurality of pairs of the first signal terminals (121) and the first ground shields (122) are fixed and held on the sheet-like insulator (120).

3. The receptacle connector according to claim 2, wherein:

the pairs of first signal terminals (121) in each of the terminal modules (12) are arranged in a row in a width direction (X) of the sheet-like insulator (120).

4. The receptacle connector according to claim 2, wherein:

the first signal terminal (121) and the first ground shield (122) of the receptacle connector (100) have connection pins (121b, 122b) adapted to be electrically connected to a first circuit board, the connection pins (121b, 122b) protruding from a bottom side of the sheet-like insulator (120) in a width direction (X) of the sheet-like insulator (120).

5. The receptacle connector according to claim 4, wherein:

the receptacle connector (100) further comprises a holder (13), and the connection pins (121b, 122b) of the first signal terminal (121) and the first ground shield (122) of the receptacle connector (100) are held in the insertion holes of the holder (13).

6. The receptacle connector according to claim 4, wherein:

the first signal terminals (121) have signal contact domes (121a), and a set of ground domes (122a1, 122a2) is arranged in the vicinity of the signal contact domes (121a) of each pair of first signal terminals (121).

7. The receptacle connector according to claim 6, wherein:

the signal contact spring piece (121a) and the grounding spring pieces (122a1, 122a2) extend out from one end of the sheet-shaped insulator (120) along the length direction (Y) of the sheet-shaped insulator (120).

8. The receptacle connector according to claim 6, wherein:

the first ground shield (122) has a plate-like body portion, and the plate-like body portion of the first ground shield (122) is attached to an outer side surface of the sheet-like insulator (120).

9. A plug connector adapted to mate with the receptacle connector (100) of any one of claims 1-8.

10. Plug connector according to claim 9, characterized in that the plug connector (200) comprises:

a second housing (210);

a plurality of rows of terminal units (22) mounted in the second housing (210),

each terminal unit (22) including a pair of second signal terminals (221) and a second ground shield (222),

each of the second ground shields (222) includes a first sidewall (222a1) and a second sidewall (222a2) adapted to electrically contact a first ground dome (122a1) and a second ground dome (122a2), respectively, of the first ground shield (122).

11. The plug connector of claim 10, wherein:

the first side wall (222a1) and the second side wall (222a2) of the second ground shield (222) are contiguous and substantially perpendicular such that the second ground shield (222) is substantially L-shaped in cross-section;

the first side wall (222a1) and the second side wall (222a2) of each of the second ground shields (222) are disposed adjacent to a corresponding pair of second signal terminals (221).

12. The plug connector of claim 10, wherein:

each terminal module (12) of the receptacle connector (100) corresponds to a row of terminal units (22) of the plug connector (200);

a plurality of pairs of first signal terminals (121) in each terminal module (12) are respectively in electrical contact with a plurality of pairs of second signal terminals (221) in a corresponding row of terminal units (22);

the multiple groups of grounding shrapnel (122a1, 122a2) in each terminal module (12) are respectively in electric contact with the multiple second grounding shields (222) in the corresponding row of terminal units (22).

13. The plug connector of claim 10, wherein:

each second signal terminal (221) comprises a signal contact portion (221a), and the signal contact dome (121a) of the first signal terminal (121) is suitable for being in elastic electrical contact with the signal contact portion (221a) of the second signal terminal (221).

14. The plug connector of claim 10, wherein:

the second signal terminal (221) and the second ground shield (222) have connection pins (221b, 222b) protruding from the second housing (210), the connection pins (221b, 222b) being adapted to be electrically connected to a second circuit board.

15. The plug connector of claim 14, wherein:

each of the second ground shields (222) has a pair of connection legs (222b), and the connection leg (221b) of each pair of second signal terminals (221) is located between the pair of connection legs (222b) of a corresponding one of the second ground shields (222).

16. Connector assembly, characterized in that it comprises a socket connector (100) according to any one of claims 1 to 8 and a plug connector according to any one of claims 9 to 15.

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