A gold finger high speed connector and method

Abstract

The application discloses a gold finger high-speed connector and a gold finger high-speed connector assembling method. The gold finger high-speed connector comprises a male-female matched line end assembly and a plate end assembly. The line end assembly comprises a line end plastic shell, a gold finger tongue inserted into the line end plastic shell and a locking member inserted into the line end plastic shell. The plate end assembly comprises a plate end shielding shell, a plate end plastic shell inserted into the plate end shielding shell and a plate end differential pair contact member inserted into the plate end plastic shell. The plate end assembly is inserted into the line end assembly and is fixed by the locking member. An elastic contact is formed between the gold finger tongue and the plate end differential pair contact member. By arranging a full-range shielding structure, the problem that the gold finger high-speed connector lacks a suitable shielding structure and cannot effectively shield the crosstalk between differential pairs is solved.

Description

Technical Field

[0001] This invention relates to the field of high-speed gold finger connector technology, and in particular to a high-speed gold finger connector and method. Background Technology

[0002] Gold finger high-speed connectors are high-speed connectors used for chips. Their function is to realize electrical connections between chips, thereby enabling data transmission between chips. Currently, gold finger connectors generally consist of male and female mating wire end assemblies and board end assemblies, that is, the mating of male plugs and female sockets.

[0003] Most existing gold finger high-speed connectors use two-dimensional field solvers, which can generally solve the impedance matching requirements through structural adjustments. However, due to the limitations of the structure and manufacturing process of gold finger high-speed connectors, existing technologies cannot create effective shielding structures for crosstalk between differential pairs. This is especially true given the unique structural environment of gold finger connectors. Therefore, current gold finger high-speed connectors cannot effectively shield crosstalk between differential pairs.

[0004] The invention disclosed in application number 201910855092.4 and publication number CN110690603B includes a female connector, a gold finger connector, a connector assembly, and an electronic device. It describes that in every two adjacent rows of first terminal modules, each terminal in one row of first terminal modules is staggered with the corresponding terminal in the other row of first terminal modules. Although this arrangement can solve some of the crosstalk between differential pairs, crosstalk between differential pairs does not only occur when their positions are opposite. Therefore, it still suffers from the problem of lacking a suitable shielding structure and failing to effectively shield crosstalk between differential pairs. Summary of the Invention

[0005] Based on this, and in response to the above problems, the present invention proposes a gold finger high-speed connector and method. By setting an all-round shielding structure, it solves the problem that existing gold finger high-speed connectors lack a suitable shielding structure and cannot effectively shield crosstalk between differential pairs.

[0006] The technical solution of this invention is:

[0007] A high-speed connector with gold fingers includes a male and female mating wire end assembly and a board end assembly. The wire end assembly includes a wire end plastic shell, a gold finger tongue inserted into the wire end plastic shell, and a locking member inserted into the wire end plastic shell. The board end assembly includes a board end shielding shell, a board end plastic shell inserted into the board end shielding shell, and a board end differential pair contact member inserted into the board end plastic shell. The board end assembly is inserted into the wire end assembly and fixed by the locking member. An elastic contact is formed between the gold finger tongue and the board end differential pair contact member.

[0008] The gold finger tongue includes a pair of differential pair encapsulated components riveted to the back. Each differential pair encapsulated component includes a line-end differential pair shielding contact and several line-end differential pair contacts. Several mounting grooves are opened on the front of the line-end differential pair shielding contact. The mounting grooves on the two line-end differential pair shielding contacts are staggered. The line-end differential pair contacts are arranged in pairs in the mounting grooves and fixed by a first encapsulating material. The two riveted differential pair encapsulated components are fixed by a second encapsulating material. A high-speed cable is provided at one end of the line-end differential pair contact. The high-speed cable is fixed to the line-end differential pair contact by a third encapsulating material.

[0009] The plate-end differential pair contact component includes several C-shaped plate-end differential pair shielding contacts and several plate-end differential pair contacts arranged in pairs within the plate-end differential pair shielding contacts. The plate-end differential pair shielding contacts and the plate-end differential pair contacts are fitted into the plate-end plastic shell. An end differential pair contact is provided on the opening side of the plate-end differential pair shielding contact located at the end.

[0010] Preferably, the locking component includes a locking band and a locking head. The locking head includes an L-shaped main body, a connecting plate, and an elastic clip. The top two ends of the main body extend outward to form extension limiting portions. The connecting plate is located at the bottom of the main body. The connecting plate has first elastic clips at both ends and a first mounting slot. One end of the elastic clip is located in the first mounting slot and connected to the connecting plate. The elastic clip has a second mounting slot. The main body has a pair of third mounting slots. The front end of the locking band is a flexible band, and the rear end is a pulling part. The front end of the locking band passes through the third and second mounting slots and connects to the elastic clip for pulling the elastic clip. One end of the elastic clip connected to the connecting plate is an inclined elastic arm, and the other end is a horizontal clip.

[0011] Preferably, the wire end plastic shell is hollow, with one end being the mounting end and the other end being the insertion end. The gold finger tongue is inserted into the wire end plastic shell from the mounting end and is fixed to the wire end plastic shell by a pair of fixing pins. The fixing pins are located at both ends of the top of the wire end plastic shell and pass through the top of the wire end plastic shell, the third sealing material, and the bottom of the wire end plastic shell from top to bottom. The top of the mounting end of the wire end plastic shell is provided with an insertion groove for inserting a locking component. The insertion groove is configured to cooperate with the locking head, and the upper end of the insertion groove is used for the insertion of the main body. The lower end is used for inserting a connecting plate. The lower end of the insertion slot is provided with a first sliding groove that cooperates with the first elastic card on the connecting plate. The plastic shell of the wire end is provided with a first limiting groove that cooperates with the first elastic card. The side wall of the insertion slot on one side of the insertion end has a through opening for the end of the elastic card head to pass through. The through opening is in clearance fit with the elastic card head. The bottom of the insertion slot is provided with a guide limiting block that cooperates with the end of the elastic arm on the elastic card head. The top of the plastic shell of the wire end is provided with a limiting groove that cooperates with the extended limiting parts at both ends of the main body.

[0012] Preferably, the top of the plastic shell insertion end of the wire end is provided with two installation notches, and a guide post is provided in the installation notch. The top of the shielding shell of the plate end is provided with two guide windows for fitting the guide posts. The guide windows can fit onto the guide posts and be inserted into the plastic shell of the wire end. The top of the shielding shell of the plate end is provided with a limiting card interface that cooperates with the locking connector on the elastic card head. The plastic shell of the wire end is provided with an observation port that cooperates with the limiting card interface. The two sides of the shielding shell of the plate end are provided with sliding protrusions, and the inner sidewall of the plastic shell of the wire end is provided with a sliding groove that cooperates with the sliding protrusions.

[0013] Preferably, the plate end plastic shell has second sliding grooves at both ends, the plate end shielding shell has elastic sliding pieces on both sides that cooperate with the second sliding grooves, the plate end plastic shell has a pair of guide sliders at the top, a snap-fit ​​protrusion between the guide sliders, the guide post has a guide groove that cooperates with the guide sliders, the plate end shielding shell has a snap-fit ​​notch at the top that cooperates with the snap-fit ​​protrusion, the plate end shielding shell has a pair of second elastic clips at the bottom, the plate end plastic shell has a second limiting groove that cooperates with the second elastic clips at the bottom, the plate end plastic shell has a pair of guide blocks at the bottom, and the plate end shielding shell has a guide slot that cooperates with the guide blocks at the bottom.

[0014] Preferably, the board-end differential pair shielding contact includes a shielding part with a three-sided shielding structure, an elastic contact arm, and SMT mounting pins. The elastic contact arm is connected to one end of the shielding part inserted into the board-end plastic shell, and the connection is made by cross-sectional torsion. The SMT mounting pins are located at the other end of the shielding part.

[0015] Preferably, one end of the plate end plastic shell is provided with a plug-in mounting groove that cooperates with the plate end differential pair shielding contact, the plate end differential pair contact and the end differential pair contact, and the other end is provided with a mating frame that cooperates with the gold finger tongue, and the mating frame is configured to cooperate with the plug-in mounting groove.

[0016] Preferably, the mounting groove on the front of the differential pair shielding contact has four through holes, and one end is provided with a limiting chamfer. One end of the differential pair contact has a limiting step, and the bottom of the end near the limiting step has a recessed area, and the other end has a recessed notch with a recessed step inside. The first encapsulant is configured to cooperate with the through holes, limiting chamfer, limiting step, recessed area, recessed notch and recessed step.

[0017] Preferably, the first, second, and third encapsulants are all formed by injection molding, the first encapsulant has multiple mating interfaces, and the third encapsulant is configured to mate with the mating interfaces.

[0018] A method for assembling a high-speed connector with gold fingers, comprising the following steps:

[0019] A: Assembly of line end components;

[0020] A1: The differential pair contacts at the wire ends are installed in pairs within the mounting grooves of the differential pair shielding contacts at the wire ends. Then, the first molding process is used to form the first molding compound, which fixes the differential pair contacts at the wire ends and the differential pair shielding contacts at the wire ends, forming a differential pair molding compound.

[0021] A2: Rivet the back sides of a pair of differential molded parts together, and then use a second injection molding process to form a second molding compound to fix the two differential molded parts together;

[0022] A3: The high-speed cable is connected to the differential pair contact on the differential pair molded part after the second molding process is fixed. Then, the high-speed cable is connected to the differential pair contact by double-sided wire bonding. Then, the third molding process is used to form the third molding compound to fix the high-speed cable to the differential pair contact, forming the gold finger tongue.

[0023] A4: Pass one end of the flexible belt of the locking band through the third and second mounting slots and connect it to the elastic clip head. Then, connect the locking head to the corresponding insertion slot, that is, connect the main body and the connecting plate to the corresponding insertion slot, the first elastic clip to the first sliding slot, and the end of the clip head to the through-hole. Then, forcefully insert the locking component into the insertion slot. The first elastic clip is inserted into the first limiting slot, the extended limiting parts at both ends of the main body are inserted into the limiting groove, and the through-hole through which the end of the clip head passes enters the plastic shell insertion end of the wire end, thus completing the installation of the locking component.

[0024] A5: Insert the gold finger tongue into the mounting end of the wire end plastic shell corresponding to the wire end plastic shell, and nail the fixing pin into the pre-set hole on the wire end plastic shell and the third plastic sealant to complete the assembly of the wire end assembly.

[0025] B: Panel end component assembly;

[0026] B1: Insert the differential pair shielding contact on the corresponding plate end plastic shell into the mounting slot, so that the opening side of one plate end differential pair shielding contact is blocked by the adjacent plate end differential pair shielding contact, thereby forming a four-sided shielding structure.

[0027] B2: Insert the differential pair contact on the board end into the corresponding insertion mounting slot on the board end plastic shell, so that the differential pair contact on the board end is installed in pairs inside the differential pair shielding contact on the board end;

[0028] B3: Insert the end differential pair contact into the corresponding plate end plastic shell insertion slot, so that the end differential pair contact blocks the opening side of the end plate end differential pair shielding contact, forming a four-sided shielding structure.

[0029] B4: Insert the plastic shell at the end of the board into the shielding shell at the end of the board, that is, align the elastic slider with the second sliding groove, the snap-fit ​​protrusion with the snap-fit ​​notch, the second elastic card with the second limiting groove, and the guide block with the guide slot and then snap it in to complete the assembly of the board end assembly.

[0030] C: Assembly of line-end components and board-end components;

[0031] Take out the assembled wire end assembly and board end assembly, insert the board end assembly into the wire end assembly, that is, align the gold finger tongue with the insertion frame opening, the guide post with the guide window, the sliding protrusion with the sliding groove, and the guide slider with the guide slot, so that one end of the elastic clip head is engaged in the limit card interface, thus completing the assembly of the wire end assembly and board end assembly, that is, completing the assembly of the gold finger connector.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] In use, the differential pair contacts at the line end are arranged in pairs within the mounting grooves, forming a three-sided shielding structure. The board-end assembly is inserted into the line end assembly, and the board-end differential pair shielding contacts and board-end differential pair contacts respectively cooperate with the line-end differential pair shielding contacts and line-end differential pair contacts to form elastic contacts. Several board-end differential pair shielding contacts are sequentially inserted into the board-end plastic shell. One side of the opening of one board-end differential pair shielding contact is blocked by another board-end differential pair shielding contact, thus forming a four-sided shielding structure. The opening side of the end board-end differential pair shielding contacts has an end differential pair contact, which is grounded, forming a four-sided shielding structure. The board-end shielding shell prevents electromagnetic waves inside and outside the connector from interfering with each other, thus giving the connector an all-around signal shielding structure.

[0034] By setting up an all-around shielding structure, the problem of existing gold finger high-speed connectors lacking a suitable shielding structure and being unable to effectively shield crosstalk between differential pairs is solved. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a gold finger high-speed connector as described in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the line end assembly described in an embodiment of the present invention;

[0037] Figure 3 This is a structural schematic diagram of the locking component described in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the plastic shell at the wire end as described in an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the gold finger tongue piece described in the embodiment of the present invention;

[0040] Figure 6 This is a partial structural schematic diagram of the gold finger tongue piece described in an embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of the split molding compound described in the embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the structure of the differential pair shielding contact described in the embodiment of the present invention;

[0043] Figure 9 This is a schematic diagram of the structure of the differential pair contact at the line end as described in an embodiment of the present invention;

[0044] Figure 10This is a schematic diagram of the structure of the board-end assembly described in an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of the plate-end shielding shell described in the embodiment of the present invention;

[0046] Figure 12 This is a schematic diagram of the structure of the plate-end plastic shell and the plate-end differential pair contact member described in the embodiment of the present invention;

[0047] Figure 13 This is a schematic diagram of the structure of the plate-end plastic shell described in the embodiment of the present invention;

[0048] Figure 14 This is a schematic diagram of the structure of the differential pair shielding contact at the plate end as described in this embodiment of the invention;

[0049] Figure 15 This is a schematic diagram of the assembly process of the wire end component described in the embodiment of the present invention;

[0050] Figure 16 This is a schematic diagram of the assembly process of the board-end assembly described in an embodiment of the present invention;

[0051] Figure 17 This is a schematic diagram of the assembly process of the line end assembly and the board end assembly described in the embodiments of the present invention;

[0052] Explanation of reference numerals in the attached figures:

[0053] 10-Wire end assembly, 100-Wire end plastic shell, 101-Gold finger tongue, 102-Locking component, 103-Differential pair encapsulation, 104-Wire end differential pair shielding contact, 105-Wire end differential pair contact, 106-Mounting groove, 107-First encapsulation, 108-Second encapsulation, 109-High-speed cable, 110-Third encapsulation, 111-Locking band, 112-Locking head, 113-Main body, 114-Connecting plate, 115-Elastic clip 116-Extension limiting part, 117-First elastic card, 118-First mounting slot, 119-Second mounting slot, 120-Third mounting slot, 121-Flexible belt body, 122-Pull part, 123-Elastic arm, 124-Snap connector, 125-Fixing pin, 126-Insertion slot, 127-First sliding groove, 128-First limiting groove, 129-Through opening, 130-Guide limiting block, 131-Limiting groove, 132-Mounting notch, 133-Guide 134-Guide window, 135-Limiting card interface, 136-Observation port, 137-Sliding groove, 138-Through hole, 139-Limiting chamfer, 140-Limiting step, 141-Recessed area, 142-Recessed notch, 143-Recessed step, 144-Matching interface, 20-Plate end assembly, 200-Plate end shielding shell, 201-Plate end plastic shell, 202-Plate end differential pair contact component, 203-Plate end differential pair shielding contact component, 204-Plate end differential pair contact Components, 205-End differential pair contact, 206-Sliding protrusion, 207-Second sliding groove, 208-Elastic slider, 209-Guide slider, 210-Snap-fit ​​protrusion, 211-Guide groove, 212-Snap-fit ​​notch, 213-Second elastic clip, 214-Second limiting groove, 215-Guide insert, 216-Guide slot, 217-Shielding part, 218-Elastic contact arm, 219-SMT board pin, 220-Insertion mounting groove, 221-Insertion frame opening. Detailed Implementation

[0054] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0055] Example:

[0056] like Figures 1 to 14As shown, this embodiment discloses a gold finger high-speed connector, including a male and female mating wire end assembly 10 and a board end assembly 20. The wire end assembly 10 includes a wire end plastic shell 100, a gold finger tongue 101 inserted into the wire end plastic shell 100, and a locking member 102 inserted into the wire end plastic shell 100. The board end assembly 20 includes a board end shielding shell 200, a board end plastic shell 201 inserted into the board end shielding shell 200, and a board end differential pair contact member 202 inserted into the board end plastic shell 201. The board end assembly 20 is inserted into the wire end assembly 10 and fixed by the locking member 102. An elastic contact is formed between the gold finger tongue 101 and the board end differential pair contact member 202.

[0057] The gold finger tongue 101 includes a pair of differential pair encapsulated parts 103 riveted to the back. The differential pair encapsulated parts 103 include wire-end differential pair shielding contacts 104 and several wire-end differential pair contacts 105. The wire-end differential pair shielding contacts 104 have several mounting grooves 106 on their front sides. The mounting grooves 106 on the two wire-end differential pair shielding contacts 104 are staggered. The wire-end differential pair contacts 105 are arranged in pairs in the mounting grooves 106 and fixed by a first encapsulating material 107. The two riveted differential pair encapsulated parts 103 are fixed by a second encapsulating material 108. A high-speed cable 109 is provided at one end of the wire-end differential pair contact 105. The high-speed cable 109 is fixed to the wire-end differential pair contact 105 by a third encapsulating material 110.

[0058] The plate-end differential pair contact member 202 includes a plurality of C-shaped plate-end differential pair shielding contacts 203 and a plurality of plate-end differential pair contacts 204 arranged in pairs within the plate-end differential pair shielding contacts 203. The plate-end differential pair shielding contacts 203 and the plate-end differential pair contacts 204 are fitted into the plate-end plastic shell 201. An end differential pair contact 205 is provided on the opening side of the plate-end differential pair shielding contact 203 located at the end.

[0059] In use, the differential pair contacts 105 are arranged in pairs within the mounting grooves 106, forming a three-sided shielding structure for the differential pair contacts 105. The plate end assembly 20 is inserted into the plate end assembly 10. The plate end differential pair shielding contacts 203 and 204 respectively cooperate with the differential pair shielding contacts 104 and 105 to form elastic contact. Several plate end differential pair shielding contacts 203 are sequentially inserted into the plate end assembly. On the plastic shell 201, one side of the opening of a plate-end differential pair shielding contact 203 is blocked by another plate-end differential pair shielding contact 203, thus forming a four-sided shielding structure. One side of the opening of the end plate-end differential pair shielding contact 203 is provided with an end differential pair contact 205, which is grounded, forming a four-sided shielding structure. The plate-end shielding shell 200 prevents electromagnetic waves inside and outside the connector from interfering with each other, thus giving the connector an all-round signal shielding structure.

[0060] By setting up an all-around shielding structure, the problem of existing gold finger high-speed connectors lacking a suitable shielding structure and being unable to effectively shield crosstalk between differential pairs is solved.

[0061] The misalignment of the mounting grooves 106 on the two differential pair shielding contacts 104 can cause the differential pair contacts 105 installed in the mounting grooves 106 to be misaligned, thereby solving part of the crosstalk problem caused by the differential pair contacts 105 being directly aligned.

[0062] As shown in Figure 3, to facilitate the insertion of the locking member 102 into the wire end plastic shell 100, this embodiment, based on the above embodiment, further preferably differs from the above embodiment in that the locking member 102 includes a locking band 111 and a locking head 112. The locking head 112 includes an L-shaped main body 113, a connecting plate 114, and an elastic clip 115. The top two ends of the main body 113 extend outward to form extension limiting portions 116. The connecting plate 114 is disposed at the bottom of the main body 113, and the two ends of the connecting plate 114 are provided with first elastic clips 117. The connecting plate 114 has a first mounting slot 11. 8. One end of the elastic clamp 115 is set in the first mounting slot 118 and connected to the connecting plate 114. The elastic clamp 115 is provided with a second mounting slot 119. The main body 113 is provided with a pair of third mounting slots 120. The front end of the locking band 111 is a flexible band 121 and the rear end is a pulling part 122. The front end of the locking band 111 passes through the third mounting slot 120 and the second mounting slot 119 and is connected to the elastic clamp 115 for pulling the elastic clamp 115. One end of the elastic clamp 115 connected to the connecting plate 114 is an inclined elastic arm 123 and the other end is a horizontal clamp head 124.

[0063] like Figures 2 to 5As shown, preferably, the wire end plastic shell 100 is hollow, with one end being the mounting end and the other end being the insertion end. The gold finger tongue 101 is inserted into the wire end plastic shell 100 from the mounting end and is fixed to the wire end plastic shell 100 by a pair of fixing pins 125. The fixing pins 125 are located at both ends of the top of the wire end plastic shell 100 and pass through the top of the wire end plastic shell 100, the third plastic sealant 110, and the bottom of the wire end plastic shell 100 from top to bottom. The top of the mounting end of the wire end plastic shell 100 is provided with an insertion groove 126 for inserting the locking member 102. The insertion groove 126 is configured to cooperate with the locking head 112. The upper end of the insertion groove 126 is used for the insertion of the main body 113, and the lower end is used for connection. The plate 114 is inserted, and the lower end of the insertion slot 126 is provided with a first sliding groove 127 that cooperates with the first elastic card 117 on the connecting plate 114. The plastic shell 100 of the wire end is provided with a first limiting groove 128 that cooperates with the first elastic card 117. The side wall of the insertion slot 126 on the side of the insertion end has a through hole 129 for one end of the card connector 124 on the elastic card head 115 to pass through. The through hole 129 is clearance-fitted with the elastic card head 115. The bottom of the insertion slot 126 is provided with a guide limiting block 130 that cooperates with one end of the elastic arm 123 on the elastic card head 115. The top of the plastic shell 100 of the wire end is provided with a limiting groove 131 that cooperates with the extended limiting parts 116 at both ends of the main body 113.

[0064] In use, one end of the flexible band 121 of the locking band 111 is passed through the third mounting slot 120 and the second mounting slot 119 and connected to the elastic clip 115. Then, the locking head 112 is connected to the insertion slot 126, that is, the main body 113 and the connecting plate 114 are connected to the insertion slot 126, the first elastic clip 117 is connected to the first sliding slot 127, and one end of the clip 124 on the elastic clip 115 is connected to the through port 129. Then, the locking member 102 is forcefully inserted into the insertion slot 126, the first elastic clip 117 is engaged in the first limiting slot 128, the extended limiting parts 116 at both ends of the main body 113 are engaged in the limiting groove 131, and the through port 129 through which one end of the clip 124 on the elastic clip 115 passes enters the insertion end of the wire end plastic shell 100, thus completing the installation of the locking member 102.

[0065] When the locking head 112 is inserted into the insertion slot 126, one end of the locking connector 124 on the elastic locking head 115 extends through the through-hole 129 to the insertion end side of the wire end plastic shell 100. One end of the elastic arm 123 on the elastic locking head 115 contacts the guide limiting block 130. The first elastic card 117 passes through the first sliding groove 127 and enters the first limiting groove 128 for limiting. The extended limiting parts 116 at both ends of the main body 113 enter the limiting groove 131 on the top of the wire end plastic shell 100 for limiting.

[0066] like Figures 2 to 4As shown, preferably, the top of the insertion end of the wire end plastic shell 100 is provided with two installation notches 132, and a guide post 133 is provided in the installation notch 132. The top of the plate end shielding shell 200 is provided with two guide windows 134 for fitting the guide post 133. The guide windows 134 can fit onto the guide post 133 and be inserted into the wire end plastic shell 100. The top of the plate end shielding shell 200 is provided with a limiting card interface 135 that cooperates with the card connector 124 on the elastic card head 115. The wire end plastic shell 100 is provided with an observation port 136 that cooperates with the limiting card interface 135. The two sides of the plate end shielding shell 200 are provided with sliding protrusions 206. The inner sidewall of the wire end plastic shell 100 is provided with a sliding groove 137 that cooperates with the sliding protrusions 206.

[0067] When the plate end assembly 20 is inserted into the line end assembly 10, the sliding protrusion 206 is engaged in the sliding groove 137, and one end of the upper locking connector 124 of the elastic locking head 115 is engaged in the limiting locking interface 135. When unlocking is required, pulling the locking band 111 can disengage the upper locking connector 124 of the elastic locking head 115 from the limiting locking interface 135. It can be observed from the observation port 136 whether one end of the upper locking connector 124 of the elastic locking head 115 has disengaged from the limiting locking interface 135.

[0068] like Figures 10 to 14 As shown, for the connection between the plate end plastic shell 201 and the plate end shielding shell 200, this embodiment, based on the above embodiment, further preferably differs from the above embodiment in that the plate end plastic shell 201 is provided with second sliding grooves 207 at both ends, the plate end shielding shell 200 is provided with elastic sliding pieces 208 on both sides that cooperate with the second sliding grooves 207, the top of the plate end plastic shell 201 is provided with a pair of guide sliders 209, and a snap-fit ​​protrusion 210 is provided between the guide sliders 209. The guide post 133 is provided with... The plate end shielding shell 200 has a guide groove 211 that cooperates with the guide slider 209. The top of the plate end shielding shell 200 has a snap-fit ​​notch 212 that cooperates with the snap-fit ​​protrusion 210. The bottom of the plate end shielding shell 200 has a pair of second elastic clips 213. The bottom of the plate end plastic shell 201 has a second limiting groove 214 that cooperates with the second elastic clips 213. The bottom of the plate end plastic shell 201 has a pair of guide blocks 215. The bottom of the plate end shielding shell 200 has a guide slot 216 that cooperates with the guide blocks 215.

[0069] When the plate end plastic shell 201 is inserted into the plate end shield shell 200, the elastic slider 208 is engaged in the second sliding groove 207, the engaging protrusion 210 is engaged in the engaging notch 212, the second elastic card 213 is engaged in the second limiting groove 214, and the guide block 215 is engaged in the guide slot 216, thereby completing the fixation between the plate end plastic shell 201 and the plate end shield shell 200. When the plate end assembly 20 is inserted into the line end assembly 10, the guide slider 209 is engaged in the guide groove 211, and the guide slider 209 plays a guiding role.

[0070] To improve the insertion and removal life of the connector, this embodiment, based on the above embodiment, is further preferred in that, unlike the above embodiment, the board-end differential pair shielding contact 203 includes a shielding part 217 with a three-sided shielding structure, an elastic contact arm 218, and an SMT mounting pin 219. The elastic contact arm 218 is connected to one end of the shielding part 217 inserted into the board-end plastic shell 201, and the connection is made by cross-sectional torsion. The SMT mounting pin 219 is located at the other end of the shielding part 217.

[0071] The cross-sectional torsion setting can give the elastic contact arm 218 better elasticity, which is more conducive to the mating and extraction life of the connector.

[0072] To facilitate the connection between the board-end differential pair contact 204 and the line-end differential pair contact 105, this embodiment, based on the above embodiment, is further preferred in that, unlike the above embodiment, one end of the board-end plastic shell 201 is provided with a plug-in mounting groove 220 that cooperates with the board-end differential pair shielding contact 203, the board-end differential pair contact 204 and the end differential pair contact 205, and the other end is provided with a mating frame opening 221 that cooperates with the gold finger tongue 101, and the mating frame opening 221 is configured to cooperate with the plug-in mounting groove 220.

[0073] When the board end assembly 20 is inserted into the line end assembly 10, the gold finger tongue 101 is inserted into the insertion frame opening 221. The elastic contact arm 218 and the end differential pair contact 205 in the board end differential pair shielding contact 203 form elastic contact with the line end differential pair shielding contact 104. The board end differential pair contact 204 and the line end differential pair contact 105 form elastic contact, thereby connecting.

[0074] like Figures 6 to 9As shown, in order to facilitate better fixation of the differential pair contact 105, the differential pair shielding contact 104, and the high-speed cable 109 by the first encapsulant 107, the second encapsulant 108, and the third encapsulant 110, this embodiment, based on the above embodiment, is further preferred in that, unlike the above embodiment, the differential pair shielding contact 104 has four through holes 138 in the mounting groove 106 on the front side, and one end is provided with a limiting chamfer 139. The differential pair contact 105 has a limiting step 140 at one end, and a recessed area 141 at the bottom of the end near the limiting step 140, and a recessed notch 142 at the other end. The recessed notch 142 has a recessed step 143. The first encapsulant 107 is configured to cooperate with the through holes 138, the limiting chamfer 139, the limiting step 140, the recessed area 141, the recessed notch 142, and the recessed step 143.

[0075] Preferably, the first encapsulant 107, the second encapsulant 108, and the third encapsulant 110 are all formed by injection molding. The first encapsulant 107 is provided with multiple mating interfaces 144, and the third encapsulant 110 is configured to mate with the mating interfaces 144.

[0076] During injection molding, due to the presence of through holes 138, limiting chamfers 139, limiting steps 140, recesses 141, recessed notches 142, and recessed steps 143, a mating area is formed within the first encapsulant 107 that mates with these features, thereby achieving better fixation of the differential pair contact 105 and the differential pair shielding contact 104. The first encapsulant 107 has multiple mating interfaces 144. During injection molding, a mating area is formed within the third encapsulant 110 that mates with these interfaces 144, thereby achieving better fixation of the high-speed cable 109.

[0077] like Figures 15 to 17 As shown, a method for assembling a high-speed gold finger connector is described above. The steps are as follows:

[0078] A: Assembly of line terminal assembly 10;

[0079] A1: The differential pair contact 105 is installed in pairs in the mounting groove 106 of the differential pair shielding contact 104. Then, the first molding process is used to form the first molding compound 107 to fix the differential pair contact 105 and the differential pair shielding contact 104, forming the differential pair molding compound 103.

[0080] A2: Rivet the back sides of a pair of differential molding compounds 103 together, and then fix the two differential molding compounds 103 by forming a second molding compound 108 through a second injection molding process;

[0081] A3: The high-speed cable 109 is connected to the differential pair contact 105 on the differential pair molded part 103 after the second molding process. Then, the high-speed cable 109 is connected to the differential pair contact 105 by double-sided wire bonding. Then, the third molding process is used to form the third molding compound 110 to fix the high-speed cable 109 to the differential pair contact 105, forming the gold finger tongue 101.

[0082] A4: Pass one end of the flexible belt 121 of the locking band 111 through the third mounting slot 120 and the second mounting slot 119 and connect it to the elastic clip 115. Then, the locking head 112 corresponds to the insertion slot 126, that is, the main body 113 and the connecting plate 114 correspond to the insertion slot 126, the first elastic clip 117 corresponds to the first sliding slot 127, and one end of the clip 124 on the elastic clip 115 corresponds to the through port 129. Then, forcefully insert the locking member 102 into the insertion slot 126. The first elastic clip 117 is inserted into the first limiting slot 128, and the extended limiting parts 116 at both ends of the main body 113 are inserted into the limiting groove 131. The through port 129 through which one end of the clip 124 on the elastic clip 115 passes enters the insertion end of the wire end plastic shell 100, thus completing the installation of the locking member 102.

[0083] A5: Insert the gold finger tongue 101 into the mounting end of the wire end plastic shell 100, and nail the fixing pin 125 into the pre-set holes on the wire end plastic shell 100 and the third plastic sealant 110 to complete the assembly of the wire end assembly 10.

[0084] B: Assembly of board end assembly 20;

[0085] B1: Insert the differential pair shielding contact 203 into the corresponding mounting slot 220 on the plate end plastic shell 201, so that the opening side of one plate end differential pair shielding contact 203 is blocked by the adjacent plate end differential pair shielding contact 203, thereby forming a four-sided shielding structure.

[0086] B2: Insert the differential pair contact 204 into the corresponding insertion mounting slot 220 on the board end plastic shell 201, so that the differential pair contact 204 is installed in pairs in the board end differential pair shielding contact 203;

[0087] B3: Insert the end differential pair contact 205 into the corresponding plate end plastic shell 201 insertion mounting groove 220, so that the end differential pair contact 205 blocks one side of the opening of the plate end differential pair shielding contact 203 located at the end, forming a four-sided shielding structure.

[0088] B4: Insert the plastic shell 201 at the end of the board into the shielding shell 200 at the end of the board, that is, insert the elastic slide 208 into the second sliding groove 207, the snap-fit ​​protrusion 210 into the snap-fit ​​notch 212, the second elastic card 213 into the second limiting groove 214, and the guide block 215 into the guide slot 216 to complete the assembly of the board end assembly 20.

[0089] C: Assembly of line end assembly 10 and board end assembly 20;

[0090] Take out the assembled wire end assembly 10 and board end assembly 20, insert the board end assembly 20 into the wire end assembly 10, that is, insert the gold finger tongue 101 into the insertion frame opening 221, the guide post 133 into the guide window 134, the sliding protrusion 206 into the sliding groove 137, and the guide slider 209 into the guide groove 211, so that one end of the locking connector 124 on the elastic locking head 115 is locked into the limiting card interface 135, thus completing the assembly of the wire end assembly 10 and the board end assembly 20, that is, completing the assembly of the gold finger connector.

[0091] The assembly of the gold finger high-speed connector in this invention can be completed using the above method.

[0092] Working principle of this invention:

[0093] In use, the differential pair contacts 105 are arranged in pairs within the mounting grooves 106, forming a three-sided shielding structure for the differential pair contacts 105. The plate end assembly 20 is inserted into the plate end assembly 10. The plate end differential pair shielding contacts 203 and 204 respectively cooperate with the differential pair shielding contacts 104 and 105 to form elastic contact. Several plate end differential pair shielding contacts 203 are sequentially inserted into the plate end assembly. On the plastic shell 201, one side of the opening of a plate-end differential pair shielding contact 203 is blocked by another plate-end differential pair shielding contact 203, thus forming a four-sided shielding structure. One side of the opening of the end plate-end differential pair shielding contact 203 is provided with an end differential pair contact 205, which is grounded, forming a four-sided shielding structure. The plate-end shielding shell 200 prevents electromagnetic waves inside and outside the connector from interfering with each other, thus giving the connector an all-round signal shielding structure.

[0094] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A high-speed connector for gold fingers, comprising a male-female mating wire end assembly (10) and a board end assembly (20), characterized in that, The line end assembly (10) includes a line end plastic shell (100), a gold finger tongue (101) inserted into the line end plastic shell (100), and a locking member (102) inserted into the line end plastic shell (100). The plate end assembly (20) includes a plate end shielding shell (200), a plate end plastic shell (201) inserted into the plate end shielding shell (200), and a plate end differential pair contact member (202) inserted into the plate end plastic shell (201). The plate end assembly (20) is inserted into the line end assembly (10) and fixed by the locking member (102). An elastic contact is formed between the gold finger tongue (101) and the plate end differential pair contact member (202). The gold finger tongue (101) includes a pair of differential pair encapsulated parts (103) riveted to the back. The differential pair encapsulated parts (103) include a line-end differential pair shielding contact (104) and a plurality of line-end differential pair contacts (105). The line-end differential pair shielding contact (104) has a plurality of mounting grooves (106) on its front side. The mounting grooves (106) on the two line-end differential pair shielding contacts (104) are staggered. The line-end differential pair contacts (105) are arranged in pairs in the mounting grooves (106) and fixed by a first encapsulating body (107). The two riveted differential pair encapsulated parts (103) are fixed by a second encapsulating body (108). One end of the line-end differential pair contact (105) is provided with a high-speed cable (109). The high-speed cable (109) is fixed to the line-end differential pair contact (105) by a third encapsulating body (110). The plate-end differential pair contact member (202) includes a plurality of C-shaped plate-end differential pair shielding contacts (203) and a plurality of plate-end differential pair contacts (204) arranged in pairs within the plate-end differential pair shielding contacts (203). The plate-end differential pair shielding contacts (203) and the plate-end differential pair contacts (204) are fitted into the plate-end plastic shell (201). An end differential pair contact (205) is provided on the opening side of the plate-end differential pair shielding contact (203) located at the end.

2. The high-speed connector for gold fingers according to claim 1, characterized in that, The locking component (102) includes a locking band (111) and a locking head (112). The locking head (112) includes an L-shaped body (113), a connecting plate (114), and an elastic clip (115). The top two ends of the body (113) extend outward to form extension limiting portions (116). The connecting plate (114) is located at the bottom of the body (113). The two ends of the connecting plate (114) are provided with first elastic clips (117). The connecting plate (114) has a first mounting slot (118). One end of the elastic clip (115) is located in the first mounting slot (118) and is connected to the connecting plate (114). The connection is as follows: the elastic clip (115) is provided with a second mounting slot (119), the main body (113) is provided with a pair of third mounting slots (120), the front end of the locking band (111) is a flexible band (121), the rear end is a pulling part (122), the front end of the locking band (111) passes through the third mounting slot (120) and the second mounting slot (119) and connects to the elastic clip (115) for pulling the elastic clip (115). One end of the elastic clip (115) connected to the connecting plate (114) is an inclined elastic arm (123), and the other end is a horizontally set clip head (124).

3. A high-speed connector for gold fingers according to claim 2, characterized in that, The wire end plastic shell (100) is hollow, with one end being the mounting end and the other end being the insertion end. The gold finger tongue (101) is inserted into the wire end plastic shell (100) from the mounting end and is fixed to the wire end plastic shell (100) by a pair of fixing pins (125). The fixing pins (125) are located at both ends of the top of the wire end plastic shell (100) and pass through the top of the wire end plastic shell (100), the third plastic sealant (110), and the bottom of the wire end plastic shell (100) from top to bottom. The top of the mounting end of the wire end plastic shell (100) is provided with an insertion groove (126) for inserting the locking member (102). The insertion groove (126) is configured to cooperate with the locking head (112). The upper end of the insertion groove (126) is used for the insertion of the main body (113) and the lower end is used for the insertion of the connecting plate (114). The lower end of the insertion slot (126) is provided with a first sliding groove (127) that cooperates with the first elastic card (117) on the connecting plate (114). The plastic shell of the wire end (100) is provided with a first limiting groove (128) that cooperates with the first elastic card (117). The side wall of the insertion slot (126) located on the insertion end has a through hole (129) for one end of the card connector (124) on the elastic card head (115) to pass through. The through hole (129) is in clearance fit with the elastic card head (115). The bottom of the insertion slot (126) is provided with a guide limiting block (130) that cooperates with one end of the elastic arm (123) on the elastic card head (115). The top of the plastic shell of the wire end (100) is provided with a limiting groove (131) that cooperates with the extended limiting parts (116) at both ends of the main body (113).

4. A high-speed connector for gold fingers according to claim 3, characterized in that, The top of the insertion end of the wire end plastic shell (100) is provided with two installation notches (132), and a guide post (133) is provided in the installation notch (132). The top of the plate end shielding shell (200) is provided with two guide windows (134) for fitting the guide post (133). The guide window (134) can fit onto the guide post (133) and be inserted into the wire end plastic shell (100). The top of the plate end shielding shell (200) is provided with a limiting card interface (135) that cooperates with the card connector (124) on the elastic card head (115). The wire end plastic shell (100) is provided with an observation port (136) that cooperates with the limiting card interface (135). The two sides of the plate end shielding shell (200) are provided with sliding protrusions (206). The inner side wall of the wire end plastic shell (100) is provided with a sliding groove (137) that cooperates with the sliding protrusions (206).

5. A high-speed connector for gold fingers according to claim 4, characterized in that, The plate end plastic shell (201) has second sliding grooves (207) at both ends, and the plate end shielding shell (200) has elastic sliding pieces (208) on both sides that cooperate with the second sliding grooves (207). The plate end plastic shell (201) has a pair of guide sliders (209) on the top, and a snap-fit ​​protrusion (210) is provided between the guide sliders (209). The guide post (133) has a guide groove (211) that cooperates with the guide sliders (209). The plate end shielding shell (200) has a top... The plate end shielding shell (200) is provided with a snap-fit ​​notch (212) that cooperates with the snap-fit ​​protrusion (210). The bottom of the plate end shielding shell (200) is provided with a pair of second elastic cards (213). The bottom of the plate end plastic shell (201) is provided with a second limiting groove (214) that cooperates with the second elastic cards (213). The bottom of the plate end plastic shell (201) is provided with a pair of guide blocks (215). The bottom of the plate end shielding shell (200) is provided with a guide slot (216) that cooperates with the guide blocks (215).

6. A high-speed connector for gold fingers according to claim 1, characterized in that, The board-end differential pair shielding contact (203) includes a shielding part (217) with a three-sided shielding structure, an elastic contact arm (218) and an SMT board pin (219). The elastic contact arm (218) is connected to one end of the shielding part (217) inserted into the board-end plastic shell (201), and the connection is made by cross-sectional torsion. The SMT board pin (219) is located at the other end of the shielding part (217).

7. A high-speed connector for gold fingers according to claim 6, characterized in that, The plate end plastic shell (201) has a plug-in mounting groove (220) at one end that cooperates with the plate end differential pair shielding contact (203), the plate end differential pair contact (204) and the end differential pair contact (205), and a mating frame (221) at the other end that cooperates with the gold finger tongue (101). The mating frame (221) cooperates with the plug-in mounting groove (220).

8. A high-speed connector for gold fingers according to claim 1, characterized in that, The mounting groove (106) on the front of the differential pair shielding contact (104) has four through holes (138) and a limiting chamfer (139) at one end. The differential pair contact (105) has a limiting step (140) at one end and a recess (141) at the bottom of the end near the limiting step (140). The other end has a recessed notch (142) and a recessed step (143) in the recessed notch (142). The first encapsulating body (107) is configured to cooperate with the through holes (138), the limiting chamfer (139), the limiting step (140), the recess (141), the recessed notch (142), and the recessed step (143).

9. A high-speed connector for gold fingers according to claim 1, characterized in that, The first encapsulant (107), the second encapsulant (108) and the third encapsulant (110) are all formed by injection molding. The first encapsulant (107) is provided with multiple mating interfaces (144), and the third encapsulant (110) is configured to mate with the mating interfaces (144).

10. A method for assembling a high-speed connector with gold fingers, characterized in that, The steps for assembling a gold finger high-speed connector according to any one of claims 1 to 9 are as follows: A: Assembly of line end assembly (10); A1: The differential pair contacts (105) are installed in pairs in the mounting groove (106) of the differential pair shielding contact (104) of the line end. Then, the first molding process is used to form the first molding compound (107) to fix the differential pair contacts (105) and the differential pair shielding contact (104) of the line end, forming the differential pair molding compound (103). A2: Rivet the back sides of a pair of differential molding compounds (103), and then fix the two differential molding compounds (103) by forming a second molding compound (108) through a second injection molding process; A3: The high-speed cable (109) is connected to the differential pair contact (105) on the differential pair molded part (103) after the second molding process. Then, the high-speed cable (109) is connected to the differential pair contact (105) by double-sided wire bonding. Then, the third molding process is used to form a third molding compound (110) to fix the high-speed cable (109) to the differential pair contact (105) and form a gold finger tongue (101). A4: Pass one end of the locking band (111) through the third mounting slot (120) and the second mounting slot (119) and connect it to the elastic clip (115). Then, the locking head (112) corresponds to the insertion slot (126), that is, the main body (113) and the connecting plate (114) correspond to the insertion slot (126), the first elastic clip (117) corresponds to the first sliding groove (127), and one end of the clip connector (124) on the elastic clip (115) corresponds to the through slot. Then, forcefully insert the locking member (102) into the insertion slot (126), the first elastic card (117) is inserted into the first limiting slot (128), the extended limiting parts (116) at both ends of the main body (113) are inserted into the limiting groove (131), and the through hole (129) through which the end of the locking connector (124) on the elastic card head (115) passes into the insertion end of the wire end plastic shell (100), thus completing the installation of the locking member (102); A5: Insert the gold finger tongue (101) into the wire end plastic shell (100) corresponding to the mounting end of the wire end plastic shell (100), and nail the fixing pin (125) into the pre-set hole on the wire end plastic shell (100) and the third plastic sealant (110) to complete the assembly of the wire end assembly (10); B: Assembly of board end components (20); B1: Insert the differential pair shielding contact (203) at the plate end into the corresponding mounting groove (220) on the plate end plastic shell (201), so that the opening side of one plate end differential pair shielding contact (203) is blocked by the adjacent plate end differential pair shielding contact (203), thereby forming a four-sided shielding structure. B2: Insert the differential pair contact (204) on the board end plastic shell (201) into the corresponding insertion mounting groove (220) so that the differential pair contact (204) on the board end is installed in pairs in the differential pair shielding contact (203); B3: Insert the end differential pair contact (205) into the corresponding plate end plastic shell (201) insertion mounting groove (220) so that the end differential pair contact (205) blocks the opening side of the plate end differential pair shielding contact (203) located at the end, forming a four-sided shielding structure. B4: Insert the plate end plastic shell (201) into the plate end shield shell (200), that is, insert the elastic slide (208) into the second sliding groove (207), the snap-fit ​​protrusion (210) into the snap-fit ​​notch (212), the second elastic card (213) into the second limiting groove (214), and the guide plug (215) into the guide slot (216) to complete the assembly of the plate end assembly (20); C: Assembly of line end assembly (10) and board end assembly (20); Take out the assembled wire end assembly (10) and board end assembly (20), insert the board end assembly (20) into the wire end assembly (10), that is, insert the gold finger tongue (101) into the insertion frame opening (221), the guide post (133) into the guide window (134), the sliding protrusion (206) into the sliding groove (137), and the guide slider (209) into the guide groove (211), so that one end of the snap-fit ​​connector (124) on the elastic snap-fit ​​head (115) is snapped into the limit snap-fit ​​interface (135), and the assembly of the wire end assembly (10) and board end assembly (20) is completed, that is, the assembly of the gold finger connector is completed.

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