High-speed connector with double-contact shielding contact

Abstract

The utility model discloses a double-contact shielding contact high-speed connector, which relates to the technical field of high-speed connectors, and comprises a plastic shell, a first shielding sheet, a second shielding sheet, a first terminal assembly and a second terminal assembly, each of the first terminal row and the second terminal row comprises a plurality of signal terminals and a plurality of grounding terminals, a first elastic contact part is arranged on the first shielding sheet, a second elastic contact part is arranged on the second shielding sheet, and each of the first elastic contact part and the second elastic contact part comprises a first elastic contact arm and a second elastic contact arm; the first elastic contact arm is in contact with one end of the grounding terminal to form a silver needle contact, and the second elastic contact arm is in contact with the other end of the grounding terminal to form a gold needle contact when the golden finger tongue piece is inserted, so that the problem that the shielding piece is easily in unstable contact with the grounding terminal after the golden finger tongue piece is repeatedly inserted and pulled in the existing high-speed connector is solved; and high-speed signal transmission cannot be stabilized.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed connectors, in particular to a high-speed connector with double-contact shielding. Background Art

[0002] High-speed connectors are interface devices used to connect electronic devices and transmit high-speed signals. They are usually used to connect computers, network equipment, communication equipment, audio and video equipment and other devices that require high-speed data transmission. High-speed connectors can support high-bandwidth data transmission and meet the requirements of modern equipment for data transmission speed and stability. In order to ensure the stability and reliability of signal transmission, high-speed connectors usually adopt special designs and materials, for example: high-speed connectors usually use high-quality metal conductors, shielding layers and contacts to reduce signal interference and loss.

[0003] In the design and manufacturing process of high-speed connectors, the shielding sheet is a very critical component. The shielding sheet can prevent electromagnetic interference, protect signal integrity, and improve system stability. However, the shielding sheet and the grounding terminal in the prior art are mostly single-contact structures. After the gold finger tongue is repeatedly plugged in and out, the shielding sheet and the grounding terminal are prone to unstable contact, and the high-speed signal cannot be transmitted stably.

[0004] In the invention with application number: 201710724325.8 and publication number CN109428235A, a high-speed connector and a connector combination are disclosed, including an insulating body, an insulating cap body, two terminal groups and two shielding plates. A plurality of grounding parts are respectively provided on one side of the two shielding plates. The plurality of grounding parts contact the grounding terminals in the terminals of the terminal group, so that the two shielding plates are respectively grounded with the two terminal groups stacked thereon. However, the grounding parts and the grounding terminals still adopt a single-contact structure, and there is still a problem that after the gold finger tongue is repeatedly plugged in and out, the shielding plate and the grounding terminal are easily unstable in contact, and the signal cannot be transmitted stably at a high speed. Utility Model Content

[0005] Based on this, in order to address the above problems, the utility model proposes a high-speed connector with double-contact shielded contact, which solves the problem that the current high-speed connector is prone to unstable contact between the shielding plate and the grounding terminal after repeated insertion and removal of the gold finger tongue, and cannot stably transmit high-speed signals.

[0006] The technical solution of the utility model is:

[0007] A high-speed connector with double-contact shielding, comprising a plastic housing, a first shielding sheet, a second shielding sheet, a first terminal assembly and a second terminal assembly, wherein the first shielding sheet, the second shielding sheet, the first terminal assembly and the second terminal assembly are plugged into the plastic housing, the first shielding sheet and the second shielding sheet are respectively located at two sides of the first terminal assembly and are arranged in coordination with the first terminal assembly, and the second terminal assembly is located at one side of the first terminal assembly;

[0008] The first terminal assembly includes a first terminal row and a second terminal row, each of the first terminal row and the second terminal row includes a plurality of signal terminals and a plurality of ground terminals, the plurality of signal terminals and the plurality of ground terminals are arranged in coordination, the first shielding sheet is provided with a plurality of first elastic contact portions arranged in coordination with the ground terminals in the first terminal row, and the second shielding sheet is provided with a plurality of second elastic contact portions arranged in coordination with the ground terminals in the second terminal row;

[0009] The first elastic contact portion and the second elastic contact portion both include a first elastic contact arm and a second elastic contact arm. The first elastic contact arm contacts one end of the ground terminal to form a silver needle contact. The second elastic contact arm contacts the other end of the ground terminal to form a gold needle contact when the gold finger tongue is inserted.

[0010] Preferably, one end of the plastic shell is provided with a plug-in slot for inserting the gold finger tongue.

[0011] Preferably, the other end of the plastic shell is provided with a first slot and a second slot matched with the plug-in slot, one end of the first slot and the second slot are matched with the plug-in slot, the first terminal row is plugged into the first slot, and the second terminal row is plugged into the second slot.

[0012] Preferably, a first mounting groove and a second mounting groove are provided on the plastic shell, the first mounting groove is arranged above the first slot, the first mounting groove is matched with the first slot, the first shielding plate is plugged into the first mounting groove, the second mounting groove is arranged below the second slot, the second mounting groove is matched with the second slot, and the second shielding plate is plugged into the second mounting groove.

[0013] Preferably, the ends of the first shielding sheet and the second shielding sheet inserted into the plastic housing are both chamfered.

[0014] Preferably, both sides of the first shielding sheet and the second shielding sheet are provided with barb structures.

[0015] Preferably, both the first shielding sheet and the second shielding sheet are provided with bulges, wherein the bulge on the first shielding sheet is arranged at the top of the first shielding sheet and has an interference fit with the first mounting groove, and the bulge on the second shielding sheet is arranged at the bottom of the second shielding sheet and has an interference fit with the second mounting groove.

[0016] Preferably, one side of the first shielding sheet and the second shielding sheet is provided with an anti-foolproof structure, one side of the first mounting groove and the second mounting groove is provided with an anti-foolproof groove matched with the anti-foolproof structure, and the anti-foolproof structure is plugged into the anti-foolproof groove.

[0017] Preferably, it further comprises a pair of grounding plates, which are plugged into two sides of the plastic shell.

[0018] Preferably, both sides of the plastic shell are provided with plug interfaces matched with a pair of grounding plates, and both sides of one end of the grounding plate are provided with a pair of limiting interferences, the grounding plate is plugged into the plug interface, and the limiting interference is interference-fitted with the plug interface.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] When the utility model is in use, after the first shielding sheet and the second shielding sheet are inserted into the plastic shell, the first elastic contact arm contacts with one end of the grounding terminal to form a stably connected silver needle contact, while the second elastic contact arm does not contact with the grounding terminal. When the gold finger tongue piece is inserted, the grounding terminal is subjected to an extrusion force, so that the second elastic contact arm contacts with the grounding terminal to form a stably connected gold needle contact, thereby forming a double-contact structure, which is conducive to stably connecting the first shielding sheet and the second shielding sheet to the grounding terminal, and solves the problem of unstable contact between the shielding sheet and the grounding terminal and inability to stably transmit high-speed signals after the gold finger tongue piece of the current high-speed connector is repeatedly plugged in and out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the exploded structure of a high-speed connector with double-contact shielding contact described in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the plastic shell described in the embodiment of the utility model. Figure 1 ;

[0023] Figure 3 It is described in the embodiment of the utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 It is a schematic diagram of the exploded structure of the first shielding sheet, the second shielding sheet, the first terminal row and the second terminal row described in the embodiment of the utility model;

[0025] Figure 5 It is described in the embodiment of the utility model Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the plastic shell described in the embodiment of the utility model. Figure 2 ;

[0027] Figure 7 It is a schematic diagram of the structure of the silver needle contact and the gold needle contact described in the embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of the structure of the grounding sheet described in the embodiment of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of a high-speed connector with double-contact shielding contact described in an embodiment of the utility model;

[0030] Description of reference numerals:

[0031] 10-plastic shell, 100-plug slot, 101-first slot, 102-second slot, 103-first mounting slot, 104-second mounting slot, 105-anti-foolproof slot, 106-plug interface, 20-first shielding plate, 21-second shielding plate, 200-first elastic contact portion, 201-second elastic contact portion, 202-first elastic contact arm, 203-second elastic contact arm, 204-silver needle contact, 205-gold needle contact, 206-chamfer, 207-barb structure, 208-convex bump, 209-anti-foolproof structure, 30-first terminal assembly, 300-first terminal row, 301-second terminal row, 302-signal terminal, 303-grounding terminal, 40-second terminal assembly, 50-grounding plate, 500-limiting interference. DETAILED DESCRIPTION

[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] Example:

[0034] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Fig. 9 As shown, in order to solve the above problems, the present embodiment discloses a high-speed connector with double-contact shielding, comprising a plastic housing 10, a first shielding sheet 20, a second shielding sheet 21, a first terminal assembly 30 and a second terminal assembly 40, wherein the first shielding sheet 20, the second shielding sheet 21, the first terminal assembly 30 and the second terminal assembly 40 are plugged into the plastic housing 10, the first shielding sheet 20 and the second shielding sheet 21 are respectively located at both sides of the first terminal assembly 30, and are arranged in cooperation with the first terminal assembly 30, and the second terminal assembly 40 is located at one side of the first terminal assembly 30;

[0035] The first terminal assembly 30 includes a first terminal row 300 and a second terminal row 301. The first terminal row 300 and the second terminal row 301 both include a plurality of signal terminals 302 and a plurality of ground terminals 303. The plurality of signal terminals 302 and the plurality of ground terminals 303 are arranged in coordination. The first shielding sheet 20 is provided with a plurality of first elastic contact portions 200 arranged in coordination with the ground terminals 303 in the first terminal row 300. The second shielding sheet 21 is provided with a plurality of second elastic contact portions 201 arranged in coordination with the ground terminals 303 in the second terminal row 301.

[0036] The first elastic contact portion 200 and the second elastic contact portion 201 both include a first elastic contact arm 202 and a second elastic contact arm 203. The first elastic contact arm 202 contacts one end of the ground terminal 303 to form a silver needle contact 204. The second elastic contact arm 203 contacts the other end of the ground terminal 303 when the gold finger tongue is inserted to form a gold needle contact 205.

[0037] When the utility model is used, after the first shielding sheet 20 and the second shielding sheet 21 are inserted into the plastic housing 10, the first elastic contact arm 202 contacts one end of the grounding terminal 303 to form a silver needle contact 204 with a stable connection, while the second elastic contact arm 203 does not contact the grounding terminal 303. When the gold finger tongue is inserted, the grounding terminal 303 is subjected to a squeezing force, so that the second elastic contact arm 203 contacts the grounding terminal 303 to form a gold needle contact 205 with a stable connection, thereby forming a double-contact structure, which is conducive to stably connecting the first shielding sheet 20 and the second shielding sheet 21 to the grounding terminal 303, and solves the problem that the shielding sheet and the grounding terminal 303 are easily unstable after the gold finger tongue is repeatedly plugged in and out, and the signal cannot be stably transmitted at a high speed. The second terminal assembly 40 includes a plurality of pairs of signal contact terminals.

[0038] Preferably, the number of grounding terminals 303 in the first terminal row 300 is 33, that is, the number of first elastic contact portions 200 on the first shielding sheet 20 is 33, the number of grounding terminals 303 in the second terminal row 301 is 32, that is, the number of second elastic contact portions 201 on the second shielding sheet 21 is 32, and the grounding terminals 303 in the first terminal row 300 and the second terminal row 301 are staggered. When in use, the staggered setting can more effectively solve the crosstalk problem.

[0039] like Figure 6 As shown, in order to facilitate the insertion of the gold finger tongue piece, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a plug-in slot 100 for inserting the gold finger tongue piece is provided at one end of the plastic shell 10. When in use, the gold finger tongue piece can be inserted into the plug-in slot 100.

[0040] like Figure 2As shown, in order to facilitate the insertion of the gold finger tongue, the terminals on the gold finger tongue form contact with the first terminal row 300 and the second terminal row 301, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the other end of the plastic shell 10 is provided with a first slot 101 and a second slot 102 which are arranged to cooperate with the plug-in slot 100, one end of the first slot 101 and the second slot 102 are arranged to cooperate with the plug-in slot 100, the first terminal row 300 is plugged into the first slot 101, and the second terminal row 301 is plugged into the second slot 102.

[0041] When in use, setting the first slot 101 and the second slot 102 not only facilitates the installation of the first terminal row 300 and the second terminal row 301, but also cooperates with one end of the first slot 101 and the second slot 102 with the plug-in slot 100, so that after the gold finger tongue is inserted, the terminal on the gold finger tongue can form contact with the first terminal row 300 and the second terminal row 301, thereby realizing signal transmission.

[0042] Preferably, one end of the first slot 101 and the second slot 102 is communicated with the plug slot 100 .

[0043] like Figure 3 As shown, in order to facilitate the installation of the first shielding sheet 20 and the second shielding sheet 21, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that a first mounting groove 103 and a second mounting groove 104 are provided on the plastic shell 10, the first mounting groove 103 is arranged above the first slot 101, the first mounting groove 103 is matched with the first slot 101, the first shielding sheet 20 is plugged into the first mounting groove 103, the second mounting groove 104 is arranged below the second slot 102, the second mounting groove 104 is matched with the second slot 102, and the second shielding sheet 21 is plugged into the second mounting groove 104.

[0044] When in use, the first installation groove 103 and the second installation groove 104 are set, and the first shielding sheet 20 is plugged into the first installation groove 103, and the second shielding sheet 21 is plugged into the second installation groove 104, which can facilitate the installation of the first shielding sheet 20 and the second shielding sheet 21.

[0045] Preferably, the first mounting groove 103 is connected to the first slot 101, and the second mounting groove 104 is connected to the second slot 102. When in use, the first elastic contact portion 200 on the first shielding sheet 20 can be in contact with the grounding terminal 303 in the first terminal row 300, and the second elastic contact portion 201 on the second shielding sheet 21 can be in contact with the grounding terminal 303 in the second terminal row 301.

[0046] like Figure 5As shown, in order to facilitate the insertion of the first shielding sheet 20 and the second shielding sheet 21 into the plastic housing 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the ends of the first shielding sheet 20 and the second shielding sheet 21 inserted into the plastic housing 10 are both provided with chamfers 206.

[0047] In order to increase the stability of the first shielding sheet 20 and the second shielding sheet 21 after being inserted into the plastic housing 10 and to prevent them from retreating, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that barb structures 207 are provided on both sides of the first shielding sheet 20 and the second shielding sheet 21.

[0048] Preferably, the barb structures 207 on both sides of the first shielding piece 20 are interference fit with the first mounting groove 103 , and the barb structures 207 on both sides of the second shielding piece 21 are interference fit with the second mounting groove 104 .

[0049] When in use, the interference fit can increase the longitudinal holding force, thereby making the first shielding sheet 20 and the second shielding sheet 21 more stable after being inserted into the plastic housing 10, and at the same time playing a certain role in preventing retreat.

[0050] In another embodiment, in order to further prevent the device from retreating, a retreat-stopping angle cooperating with the barb structure 207 is provided in the first installation groove 103 and the second installation groove 104 .

[0051] The stop angle is not shown in the figure, and it can be set in conjunction with the barb structure 207. The stop angle can be a right angle.

[0052] When in use, the barb structure 207 can form a matching limit with the stop angle, thereby playing a role in preventing the first shielding sheet 20 and the second shielding sheet 21 from retreating.

[0053] like Figure 5 As shown, in order to further increase the installation stability of the first shielding sheet 20 and the second shielding sheet 21, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that both the first shielding sheet 20 and the second shielding sheet 21 are provided with a bulge 208, wherein the bulge 208 on the first shielding sheet 20 is arranged at the top of the first shielding sheet 20 and is interference fit with the first mounting groove 103, and the bulge 208 on the second shielding sheet 21 is arranged at the bottom of the second shielding sheet 21 and is interference fit with the second mounting groove 104.

[0054] When in use, the provision of the convex bump 208 can make the first shielding sheet 20 and the second shielding sheet 21 have better stability after being inserted into the plastic housing 10 .

[0055] like Figure 5As shown, in order to prevent the problem of wrong insertion or over-insertion, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that an anti-foolproof structure 209 is provided on one side of the first shielding sheet 20 and the second shielding sheet 21, and an anti-foolproof groove 105 which is arranged in coordination with the anti-foolproof structure 209 is provided on one side of the first mounting groove 103 and the second mounting groove 104, and the anti-foolproof structure 209 is plugged into the anti-foolproof groove 105.

[0056] When in use, the fool-proof structure 209 is plugged into the fool-proof slot 105, which can effectively avoid the problem of wrong plugging or over-plugging.

[0057] like Figure 1 , Figure 8 As shown, in order to further enhance the anti-crosstalk capability of the present invention, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that it further includes a pair of grounding plates 50, which are plugged into both sides of the plastic housing 10.

[0058] In order to facilitate the installation of the grounding plate 50, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment lies in that plug-in ports 106 that are matched with a pair of grounding plates 50 are respectively provided on both sides of the plastic shell 10, and a pair of limiting interferences 500 are provided on both sides of one end of the grounding plate 50. The grounding plate 50 is plugged into the plug-in port 106, and the limiting interference 500 is interference fit with the plug-in port 106.

[0059] When in use, the grounding plate 50 is inserted into the plug port 106 so that the limiting interference 500 forms an interference fit with the inner wall of the plug port 106 , which can stably fix the grounding plate 50 in the plug port 106 , thereby facilitating the installation of the grounding plate 50 .

[0060] Working principle of this utility model:

[0061] When the utility model is in use, after the first shielding sheet 20 and the second shielding sheet 21 are inserted into the plastic housing 10, the first elastic contact arm 202 contacts one end of the grounding terminal 303 to form a stably connected silver needle contact 204, while the second elastic contact arm 203 does not contact the grounding terminal 303. When the gold finger tongue is inserted, the grounding terminal 303 is subjected to an extrusion force, so that the second elastic contact arm 203 contacts the grounding terminal 303 to form a stably connected gold needle contact 205, thereby forming a double-contact structure, which is conducive to stably connecting the first shielding sheet 20 and the second shielding sheet 21 to the grounding terminal 303.

[0062] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A high-speed connector with double-contact shielding, characterized in that: The invention comprises a plastic housing (10), a first shielding sheet (20), a second shielding sheet (21), a first terminal assembly (30) and a second terminal assembly (40); the first shielding sheet (20), the second shielding sheet (21), the first terminal assembly (30) and the second terminal assembly (40) are plugged into the plastic housing (10); the first shielding sheet (20) and the second shielding sheet (21) are respectively located on both sides of the first terminal assembly (30) and are arranged in coordination with the first terminal assembly (30); and the second terminal assembly (40) is located on one side of the first terminal assembly (30); The first terminal assembly (30) comprises a first terminal row (300) and a second terminal row (301), the first terminal row (300) and the second terminal row (301) both comprising a plurality of signal terminals (302) and a plurality of grounding terminals (303), the plurality of signal terminals (302) and the plurality of grounding terminals (303) being arranged in coordination, the first shielding sheet (20) being provided with a plurality of first elastic contact portions (200) being arranged in coordination with the grounding terminals (303) in the first terminal row (300), and the second shielding sheet (21) being provided with a plurality of second elastic contact portions (201) being arranged in coordination with the grounding terminals (303) in the second terminal row (301); The first elastic contact portion (200) and the second elastic contact portion (201) both comprise a first elastic contact arm (202) and a second elastic contact arm (203); the first elastic contact arm (202) contacts one end of a grounding terminal (303) to form a silver needle contact (204); and the second elastic contact arm (203) contacts the other end of the grounding terminal (303) when a gold finger tongue is inserted to form a gold needle contact (205).

2. A double-contact shielded high-speed connector according to claim 1, characterized in that: One end of the plastic shell (10) is provided with an inserting slot (100) for inserting a gold finger tongue.

3. A double-contact shielded high-speed connector according to claim 2, characterized in that: The other end of the plastic housing (10) is provided with a first slot (101) and a second slot (102) which are arranged in cooperation with the plug-in slot (100); one end of the first slot (101) and the second slot (102) are arranged in cooperation with the plug-in slot (100); the first terminal row (300) is plugged into the first slot (101), and the second terminal row (301) is plugged into the second slot (102).

4. A double-contact shielded high-speed connector according to claim 3, characterized in that: The plastic shell (10) is provided with a first mounting groove (103) and a second mounting groove (104); the first mounting groove (103) is arranged above the first slot (101); the first mounting groove (103) and the first slot (101) are arranged in cooperation with each other; the first shielding sheet (20) is plugged into the first mounting groove (103); the second mounting groove (104) is arranged below the second slot (102); the second mounting groove (104) and the second slot (102) are arranged in cooperation with each other; the second shielding sheet (21) is plugged into the second mounting groove (104).

5. A high-speed connector with double-contact shielding according to claim 1, characterized in that: One end of the first shielding sheet (20) and the second shielding sheet (21) inserted into the plastic housing (10) is provided with a chamfer (206).

6. A high-speed connector with double-contact shielding according to claim 4, characterized in that: Barb structures (207) are provided on both sides of the first shielding sheet (20) and the second shielding sheet (21).

7. A high-speed connector with double-contact shielding according to claim 4, characterized in that: Both the first shielding sheet (20) and the second shielding sheet (21) are provided with a bulge (208), wherein the bulge (208) on the first shielding sheet (20) is arranged at the top of the first shielding sheet (20) and is interference-fitted with the first mounting groove (103), and the bulge (208) on the second shielding sheet (21) is arranged at the bottom of the second shielding sheet (21) and is interference-fitted with the second mounting groove (104).

8. A double-contact shielded high-speed connector according to claim 4, characterized in that: An anti-foolproof structure (209) is provided on one side of the first shielding sheet (20) and the second shielding sheet (21), and an anti-foolproof groove (105) is provided on one side of the first installation groove (103) and the second installation groove (104) to cooperate with the anti-foolproof structure (209), and the anti-foolproof structure (209) is plugged into the anti-foolproof groove (105).

9. A double-contact shielded high-speed connector according to claim 1, characterized in that: It also includes a pair of grounding plates (50), which are plugged into two sides of the plastic shell (10).

10. A double-contact shielded high-speed connector according to claim 9, characterized in that: The plastic housing (10) is provided with plug-in ports (106) respectively arranged to cooperate with a pair of grounding plates (50) on both sides, and a pair of limiting interferences (500) are provided on both sides of one end of the grounding plate (50). The grounding plate (50) is plugged into the plug-in port (106), and the limiting interference (500) is interference-fitted with the plug-in port (106).

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