A high frequency connector for reducing signal crosstalk

Abstract

The utility model discloses a high-frequency connector for reducing signal crosstalk, comprising a terminal group, an insulating seat and a metal shell; an upper row of terminals comprises a first differential pair terminal, a second grounding terminal, a third differential pair terminal and a fourth grounding terminal, and a lower row of terminals comprises a first grounding terminal, a second differential pair terminal, a third grounding terminal and a fourth differential pair terminal; fixed portions of the first to fourth grounding terminals are bent toward fixed portions of corresponding differential pair terminals on opposite sides to serve as upper and lower row differential pair terminal isolation portions; the upper and lower row differential pair terminal isolation portions are located between the upper and lower row differential pair terminals; the crosstalk between the upper and lower row differential pair terminals is effectively reduced, and slots are provided on the insulating seat corresponding to adjacent differential pair terminals in the same row, and isolation sheets are inserted in the slots to serve as adjacent differential pair terminal isolation portions in the same row, thereby reducing crosstalk between adjacent differential pair terminals in the same row.

Description

Technical Field

[0001] The utility model relates to the technology of connector field, and in particular to a high-frequency connector for reducing signal crosstalk, which is mainly but not limited to a DP connector, such as a DP2.1 connector. Background Art

[0002] As one of the mainstream audio and video transmission interfaces, DisplayPort (DP) defines a maximum test frequency of 10GHz in the DP2.0 specification. After upgrading to the DP2.1 version, in order to improve compatibility with the TYPE-C connector, the test frequency is increased to 20GHz, and the same integrated crosstalk (IXT) project as TYPE-C is added. This project is a collection of crosstalk between one differential pair and the other three differential pairs. Compared with DP2.0, the product's requirements for crosstalk are greatly increased.

[0003] In order to optimize the performance of IXT, the existing DP2.1 female connector on the market adds a metal shielding sheet between the upper and lower rows of terminals. Due to the limitation of the molding process, the production process of the product after adding the metal shielding sheet is: firstly, the upper and lower rows of terminals are injection molded separately, and then assembled with the metal shielding sheet, and then the assembly is injection molded again. This process flow is relatively complicated, the production cost is high, and it is not conducive to the promotion of the product. For example, CN 116207582 A discloses a manufacturing process of an electrical connector, comprising the following steps: S1, the components of the electrical connector include an upper row of terminals, an upper semi-insulator, a prepared lower row of terminals, a lower semi-insulator, a grounding plate (also referred to as a metal shielding plate) and a shell; S2, assembling the upper row of terminals and the upper semi-insulator to obtain an upper semi-finished product; S3, assembling the lower row of terminals and the lower semi-insulator to obtain a lower semi-finished product; S4, removing the head material strips from the obtained upper semi-finished product and the obtained lower semi-finished product; S5, assembling the lower semi-finished product after step S4 with the grounding plate; S6, assembling the lower semi-finished product after step S5 with the upper semi-finished product after step S4 to obtain an assembled semi-finished product.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a high-frequency connector that reduces signal crosstalk, which effectively reduces the crosstalk between the upper and lower rows of differential pair terminals, and at the same time, reduces the crosstalk between adjacent differential pair terminals in the same row.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-frequency connector for reducing signal crosstalk, comprising a terminal group, an insulating seat injection-molded on the terminal group, and a metal shell covering the outside of the insulating seat; the insulating seat has a tongue plate extending forward, and the metal shell forms an insertion interface around the outer periphery of the tongue plate; the terminal group comprises an upper row of terminals and a lower row of terminals, the upper row of terminals comprises a first differential pair terminal, a second grounding terminal, a third differential pair terminal, and a fourth grounding terminal arranged side by side in sequence, and the lower row of terminals comprises a first grounding terminal, a second differential pair terminal, a third grounding terminal, and a fourth differential pair terminal arranged side by side in sequence;

[0008] The fixed parts of the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal are bent toward the fixed parts of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation parts; the upper and lower row differential pair terminal isolation parts are located between the upper row differential pair terminals and the lower row differential pair terminals.

[0009] As a preferred solution, a slot is provided on the insulating seat corresponding to adjacent differential pair terminals in the same row, and an isolation sheet is inserted in the slot, so that: the isolation sheet is located between adjacent differential pair terminals in the same row to serve as an isolation portion for adjacent differential pair terminals in the same row, and the isolation sheet is exposed at the top and bottom of the insulating seat respectively.

[0010] As a preferred solution, the slots are respectively arranged corresponding to the first grounding terminal, the second grounding terminal, the third grounding terminal, and the fourth grounding terminal. After the isolation sheet is inserted into place, it forms contact and conduction with the corresponding first grounding terminal, the second grounding terminal, the third grounding terminal, and the fourth grounding terminal.

[0011] As a preferred solution, a positioning groove is provided on the upper and lower rows of differential terminal isolation parts, and the positioning groove passes through the upper and lower ends of the upper and lower rows of differential terminal isolation parts. A latching protrusion is provided on the isolation piece, and after the isolation piece is inserted into place, the latching protrusion is latched into the positioning groove.

[0012] As a preferred solution, there are several slots, namely two first slots and two second slots; the first slot is recessed and extends forward from the rear end of the insulating seat, and the second slot is recessed and extends upward from the bottom of the insulating seat, the second grounding terminal and the fourth grounding terminal are respectively exposed in the two first slots, so that the corresponding isolation sheet is inserted forward from the rear end of the first slot, and the first grounding terminal and the third grounding terminal are respectively exposed in the two second slots, so that the corresponding isolation sheet is inserted upward from the bottom end of the second slot.

[0013] As a preferred solution, the isolation sheet is in contact and conduction with the metal shell at the top and bottom of the insulating seat respectively.

[0014] As a preferred solution, the outermost left and right widths of the isolating portions of the upper and lower rows of differential pair terminals are greater than the outermost left and right widths of the fixing portions of the corresponding differential pair terminals.

[0015] As a preferred solution, the front ends of the first differential pair terminals, the second differential pair terminals, the third differential pair terminals, and the fourth differential pair terminals are located behind the front end of the tongue plate to maintain a front-to-rear spacing, and a groove is provided on the tongue plate on the opposite side of the corresponding differential pair terminals, and the front end pre-break portion of the corresponding differential pair terminals is located in the groove so that the front end material strip of the corresponding differential pair terminals can be broken on the opposite side of the tongue plate, and a support plane is reserved on the tongue plate portion just in front of the contact portion of the corresponding differential pair terminals for contact support when the male spring clip is inserted.

[0016] As a preferred solution, the front end heads of the same differential pair terminals are arranged close to each other, and the adjacent terminal heads of adjacent differential pair terminals are arranged away from each other to increase the distance between the adjacent terminal heads of adjacent differential pair terminals.

[0017] As a preferred solution, the right lower edge of the right terminal of the first differential pair terminal, the left upper edge of the left terminal of the second differential pair terminal, the right upper edge of the right terminal of the second differential pair terminal, the left lower edge of the left terminal of the third differential pair terminal, the right lower edge of the right terminal of the third differential pair terminal, and the left upper edge of the left terminal of the fourth differential pair terminal are all chamfered.

[0018] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal are bent and arranged close to the fixed parts of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation parts; the upper and lower row differential pair terminal isolation parts are located between the upper row differential pair terminals and the lower row differential pair terminals, and the insulating seat is provided with slots corresponding to the adjacent differential pair terminals in the same row, and the slots are inserted with isolation plates, so that: the isolation plates are located between the adjacent differential pair terminals in the same row to serve as the isolation parts of the adjacent differential pair terminals in the same row; thereby, the crosstalk between the upper and lower row differential pair terminals is effectively reduced, and at the same time, the crosstalk between the adjacent differential pair terminals in the same row is reduced. The metal shielding plate that needs to be additionally arranged in the traditional technology is eliminated, and it is suitable for one-time injection molding of the upper and lower row terminals, which simplifies the process flow, can reduce production costs, and is not conducive to the promotion of products.

[0019] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0021] Figure 2 This is a front view of a high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0022] Figure 3 It is a first exploded view of a high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0023] Figure 4 It is a partial cross-sectional view of the terminal group and the insulating seat of the embodiment of the utility model after being integrally molded into one piece at one time;

[0024] Figure 5 It is a second exploded view of a high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0025] Figure 6 It is a third exploded view of the high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0026] Figure 7 It is an exploded view of a spacer and a primary injection molding module according to an embodiment of the utility model;

[0027] Figure 8 is another exploded view of the spacer and the one-shot injection molding module of the embodiment of the utility model;

[0028] Fig. 9 yes Figure 7 Middle Q1 direction view;

[0029] Fig.10 yes Figure 8 Middle Q2 direction view;

[0030] Fig.11 It is a diagram showing the relative position relationship between the isolation sheet and the terminal group of the embodiment of the utility model;

[0031] Fig.12 is another diagram showing the relative position relationship between the isolation sheet and the terminal group according to the embodiment of the utility model;

[0032] Fig.13 yes Fig.11 The cross-section diagram at K1-K1 in the middle;

[0033] Fig.14 yes Fig.11The cross-sectional view at K2-K2 in the middle;

[0034] Fig.15 is an exploded view of a terminal assembly according to an embodiment of the present utility model;

[0035] Fig.16 It is a side view of a terminal assembly according to an embodiment of the utility model;

[0036] Fig.17 is another exploded view of the terminal assembly of the embodiment of the utility model;

[0037] Fig.18 This is a diagram showing the manufacturing process of a high-frequency connector for reducing signal crosstalk according to an embodiment of the utility model;

[0038] Fig.19 This is a test diagram of a differential crosstalk simulation experiment performed on a high-frequency connector according to an embodiment of the utility model;

[0039] Fig. 20 This is a test diagram of a differential crosstalk simulation experiment of a high-frequency connector according to another embodiment of the utility model (without the isolation sheet). DETAILED DESCRIPTION

[0040] Please refer to Figures 1 to 20 As shown, it shows the specific structure of various embodiments of the present utility model.

[0041] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] A high-frequency connector for reducing signal crosstalk, comprising a terminal group 10, an insulating seat 20 injection-molded on the terminal group 10, and a metal shell 30 covering the outside of the insulating seat 20; the insulating seat 20 has a tongue plate extending forward, and the metal shell 30 forms an insertion interface around the outer periphery of the tongue plate; the terminal group 10 comprises an upper row of terminals and a lower row of terminals, the upper row of terminals comprises a first differential pair terminal, a second grounding terminal, a third differential pair terminal, and a fourth grounding terminal arranged in sequence side by side on the left and right, and the lower row of terminals comprises a first grounding terminal, a second differential pair terminal, a third grounding terminal, and a fourth differential pair terminal arranged in sequence side by side on the left and right. The fixed parts of the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal are all bent toward the fixed parts of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation parts; the upper and lower row differential pair terminal isolation parts are located between the upper row differential pair terminals and the lower row differential pair terminals, and slots are provided on the insulating seat 20 corresponding to adjacent differential pair terminals in the same row, and isolation sheets are inserted in the slots, so that: the isolation sheets are located between adjacent differential pair terminals in the same row to serve as adjacent differential pair terminals in the same row Isolation parts, thereby effectively reducing crosstalk between the upper and lower row differential pair terminals, and at the same time, reducing crosstalk between adjacent differential pair terminals in the same row.

[0043] In this embodiment, a DP female connector (such as a DP2.1 female connector) is used as an example for explanation, which includes a terminal group 10, an insulating seat 20 injection-molded on the terminal group 10, and a metal shell 30 covering the outside of the insulating seat 20, and a rubber plug 40 is also provided at the bottom of the insulating seat 20. The insulating seat 20 has a tongue plate extending forward, and the metal shell 30 forms an insertion interface around the periphery of the tongue plate; the terminal group 10 extends forward to the upper and lower sides of the tongue plate. For the DP2.1 female connector, its terminal group 10 includes an upper row of terminals 1 and an upper row of terminals 2. Specifically, the upper row of terminals from left to right are: the first differential pair terminal 101 (referring to DIFF1), the second grounding terminal 102, the third differential pair terminal 103 (referring to DIFF5), the fourth grounding terminal 104, the CONFIG terminal, the I / O terminal, the I / O terminal, and the RIN terminal; the lower row of terminals from left to right are: the first grounding terminal 105, the second differential pair terminal 106 (referring to DIFF3), the third grounding terminal 107, the fourth differential pair terminal 108 (referring to DIFF7), the CONFIG terminal, the fifth grounding terminal, the In terminal, and the PWR Out terminal; usually, the terminal definition is based on the association specification, and some terminals can be added or reduced as needed. The first differential pair terminal 101 and the third differential pair terminal 103 are the upper row of differential pair terminals, and the second differential pair terminal 106 and the fourth differential pair terminal 104 are the lower row of differential pair terminals.

[0044] All terminals of the upper row of terminals and the lower row of terminals include a contact portion 13, a fixing portion 14 and a welding portion 15 connected in sequence from front to back; the contact portion 13 as a whole is a front-to-back horizontally extending structure, and the fixing portions of the first grounding terminal 105, the second grounding terminal 102, the third grounding terminal 107 and the fourth grounding terminal 104 are all bent toward the fixing portions of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation portions 11; the upper and lower row differential pair terminal isolation portions 11 are located between the upper row differential pair terminals and the lower row differential pair terminals, effectively reducing crosstalk between the upper and lower row differential pair terminals. The fixing portion 14 is in an L-shaped structure, having a longitudinal portion extending horizontally forward and backward and a vertical portion extending vertically, the front end of the longitudinal portion is integrally connected to the rear end of the contact portion, the upper end of the vertical portion is integrally connected to the rear end of the longitudinal portion, the welding portion 15 is connected to the lower end of the vertical portion, and the welding portions of the upper row of terminals and the lower row of terminals are located in the same plane. During production, the upper row of terminals and the lower row of terminals are injection molded at one time, so that the terminal group 10 is fixed in the insulating seat 20, the contact portions of the upper row of terminals and the lower row of terminals are exposed at the upper and lower sides of the tongue plate respectively, and the welding portions are exposed at the tail end of the insulating seat 20.

[0045] The insulating seat 20 is provided with a slot corresponding to adjacent differential pair terminals in the same row, and an isolation sheet is inserted in the slot. The slot on the insulating seat 20 is respectively provided corresponding to the first grounding terminal 105, the second grounding terminal 102, the third grounding terminal, and the fourth grounding terminal. After the isolation sheet is inserted into place, it forms contact and conduction with the corresponding first grounding terminal 105, the second grounding terminal 102, the third grounding terminal 107, and the fourth grounding terminal 104, for example, assembled to form interference contact. The isolation sheet is located between adjacent differential pair terminals in the same row to serve as an isolation portion for adjacent differential pair terminals in the same row, thereby effectively reducing the crosstalk between adjacent differential pair terminals in the same row. Preferably, the outermost left and right widths of the isolation portions of the upper and lower rows of differential pair terminals are greater than the outermost left and right widths of the fixed portions of the corresponding differential pair terminals, that is, the width between the left side of the left terminal and the right side of the right terminal of the differential pair terminal. The upper and lower rows of differential pair terminal isolation parts 11 are provided with positioning grooves 12, and the positioning grooves 12 pass through the upper and lower ends of the upper and lower rows of differential pair terminal isolation parts 11. The isolation piece is provided with a latching protrusion 12'. After the isolation piece is inserted into place, the latching protrusion 12' is inserted into the positioning groove 12. On the one hand, the isolation piece is positioned in the front-to-back direction and the left-to-right direction and will not loosen or shift. On the other hand, the latching protrusion 12' is inserted into the positioning groove 12 with the help of external force during insertion, and the isolation piece and the upper and lower rows of differential pair terminal isolation parts 11 form interference and strong contact. In this embodiment, the slots are provided in a plurality of numbers, specifically two first slots 201 and two second slots 202; the first slots 201 are provided to extend forward from the rear end of the insulating seat 20, and the second slots 202 are provided to extend upward from the bottom of the insulating seat 20; the isolation sheets are provided in a plurality of numbers, specifically two first isolation sheets 16 and two second isolation sheets 17; the bottom of the first isolation sheet 16 inserted into the first slot 201 is provided with a protrusion 12', and the top of the second isolation sheet 17 inserted into the second slot 202 is provided with a protrusion 12'. The second grounding terminal 102 and the fourth grounding terminal are respectively exposed in the two first slots 201, so that the corresponding first isolation sheet 16 is inserted forward from the rear end of the first slot 201, and the first grounding terminal 105 and the third grounding terminal 107 are respectively exposed in the two second slots 202, so that the corresponding second isolation sheet 17 is inserted upward from the bottom end of the second slot 202. The isolation sheets are exposed at the top and bottom of the insulating seat 20 through the arrangement of two first isolation sheets 16 and two second isolation sheets 17, and also play a role in strengthening the structural strength and anti-deformation ability of the insulating seat 20 and the entire high-frequency connector, which is beneficial to maintaining the shape of the plug interface surrounded by the metal shell 30.Since the two first isolation sheets 16 and the two second isolation sheets 17 are exposed at the top and bottom of the insulating seat 20 respectively, they can form contact and conduction with the inner top wall and inner bottom wall of the metal shell 30, and play a role in strengthening support and positioning, which is equivalent to providing internal support reinforcing ribs inside the metal shell 30.

[0046] The front ends of the first differential pair terminal 101, the second differential pair terminal 106, the third differential pair terminal 103, and the fourth differential pair terminal 108 are all located behind the front end of the tongue plate to maintain the front-to-back spacing; a groove is provided on the tongue plate on the opposite side of the corresponding differential pair terminal, and the front end pre-broken part of the corresponding differential pair terminal is located in the groove, so that the front end material strip of the corresponding differential pair terminal can be broken on the opposite side of the tongue plate, and a support plane 20' is reserved on the tongue plate part just in front of the contact part of the corresponding differential pair terminal for contact support when the male spring piece is inserted. In this embodiment, the bottom of the tongue plate is provided with a first groove 17 corresponding to the front end of the first differential pair terminal 101 and the third differential pair terminal 103, and the front end pre-breakage position of the first differential pair terminal 101 and the third differential pair terminal 103 is located in the first groove 17; the top of the tongue plate is provided with a second groove 18 corresponding to the front end of the second differential pair terminal 106 and the fourth differential pair terminal 108, and the front end pre-breakage position 10' of the second differential pair terminal 106 and the fourth differential pair terminal 108 is located in the second groove 18. That is, the left and right sides of the head ends of the first grounding terminal 105 and the third grounding terminal 107 are respectively provided with the first groove 17, and the left and right sides of the head ends of the second grounding terminal 102 and the fourth grounding terminal 104 are respectively provided with the second groove 18, and the first differential pair terminal 101, the second differential pair terminal 106, the third differential pair terminal 103, and the fourth differential pair terminal 108 are all cut and blanked on the opposite sides. Here, by retracting the front end pre-break portion 10' of the differential pair terminal to shorten the open branch area, the loss and crosstalk problems of high-frequency signals are greatly improved. Moreover, compared with the design scheme in which the front pre-break groove is arranged in front of the same side of the differential terminal in the conventional technology, the grooves are staggered up and down, so that the front side of the contact portion of the differential pair terminal on the tongue plate is flat, and these grooves avoid contact with the spring terminals of the DP male connector, eliminating the risk of the spring terminals of the DP male connector being stuck when the grooves are on the same side (or in the same row) in the conventional technology.

[0047] Furthermore, the front end heads of the same differential pair terminals are arranged close together, and the adjacent terminal heads of adjacent differential pair terminals are arranged away from (or far away from) each other to increase the distance between the adjacent terminal heads of adjacent differential pair terminals, reduce the mutual influence of the terminal heads as resonant transmitters and receivers, and thus reduce crosstalk; further, the right lower edge of the right terminal of the first differential pair terminal, the left upper edge of the left terminal of the second differential pair terminal, the right upper edge of the right terminal of the second differential pair terminal, the left lower edge of the left terminal of the third differential pair terminal, the right lower edge of the right terminal of the third differential pair terminal, and the left upper edge of the left terminal of the fourth differential pair terminal are all chamfered to form a chamfered slope A or a chamfered arc surface to reduce the distribution of electromagnetic field lines on adjacent differential pair terminals, thereby reducing crosstalk.

[0048] Next, a manufacturing process of a high-frequency connector for reducing signal crosstalk is provided. The high-frequency connector for reducing signal crosstalk is a high-frequency connector for reducing signal crosstalk as described in any of the above items. The manufacturing process comprises the following steps:

[0049] Step 1, feeding the terminal assembly material strip into the injection mold, and performing one-time injection molding on the terminal assembly 10 to form the insulating seat 20, thereby obtaining a one-time injection molding module;

[0050] Step 2, removing the material strip; wherein the front end material strip of each differential pair terminal is broken off at the opposite side of the tongue plate and at a retracted distance from the front end of the tongue plate;

[0051] Step 3, inserting the isolation sheet into the corresponding slot of the insulating seat 20, so that the isolation sheet is in contact and conduction with the corresponding first grounding terminal, the second grounding terminal, the third grounding terminal, and the fourth grounding terminal;

[0052] Step 4: Cover the metal shell 30 on the outside of the insulating seat 20. Any one or more of laser welding, ultrasonic welding, mechanical riveting and the like can be performed on the outside of the metal shell 30 to improve the contact reliability between the metal shell 30 and the isolation sheet.

[0053] In step 3, two isolation plates are inserted forward from the rear end of the insulating seat 20 to contact and conduct with the second grounding terminal and the fourth grounding terminal respectively, and another two isolation plates are inserted upward from the bottom of the insulating seat 20 to contact and conduct with the first grounding terminal and the third grounding terminal respectively.

[0054] This manufacturing process is easy to produce and is conducive to better controlling production costs, improving production efficiency and yield.

[0055] like Fig.19As shown, it can be known from simulation tests that it can meet the anti-crosstalk requirements of the DP2.1 connector. The measured data of IXT is better than the standard parameter -34 of the DP2.1 connector, as shown in the following table (1), which is a summary table of simulation test results of the high-frequency connector of the embodiment of the utility model.

[0056] like Fig. 20 As shown, the isolation sheet is removed. After simulation test, it can meet the anti-crosstalk requirements of DP2.1 connector. The measured data of IXT is better than the standard parameter of DP2.1 connector -34. As shown in the following table (2), it is a summary table of simulation test results of high-frequency connector of another embodiment of the utility model (isolation sheet removed).

[0057] Table (1)

[0058] Table (2)

[0059] For some products with less stringent requirements, the isolation sheet can be removed to meet the anti-crosstalk requirements of the DP2.1 connector. Compared with the previous embodiment, step 3 is omitted during production, and the other production steps are the same. Therefore, the high-frequency connector of the utility model can meet the design requirements of two products with different requirements, and can use the common structural design and production process.

[0060] The design focus of the utility model is that it is mainly achieved by bending the fixed parts of the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal toward the fixed parts of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation parts 11; the upper and lower row differential pair terminal isolation parts 11 are located between the upper row differential pair terminals and the lower row differential pair terminals, thereby effectively reducing the crosstalk between the upper and lower row differential pair terminals, eliminating the metal shielding sheet that needs to be additionally arranged in the traditional technology, being suitable for one-time injection molding of the upper and lower row terminals, simplifying the process flow, reducing the production cost, and being not conducive to the promotion of the product.

[0061] Furthermore, a slot is provided on the insulating seat 20 corresponding to adjacent differential pair terminals in the same row, and an isolation sheet is inserted in the slot, so that: the isolation sheet is located between adjacent differential pair terminals in the same row to serve as an isolation part for adjacent differential pair terminals in the same row, thereby reducing crosstalk between adjacent differential pair terminals in the same row.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-frequency connector for reducing signal crosstalk, comprising a terminal group, an insulating seat injection-molded on the terminal group, and a metal shell covering the outside of the insulating seat; the insulating seat has a tongue plate extending forward, and the metal shell forms an insertion interface around the outer periphery of the tongue plate; the terminal group comprises an upper row of terminals and a lower row of terminals, the upper row of terminals comprises a first differential pair terminal, a second grounding terminal, a third differential pair terminal, and a fourth grounding terminal arranged side by side in sequence, and the lower row of terminals comprises a first grounding terminal, a second differential pair terminal, a third grounding terminal, and a fourth differential pair terminal arranged side by side in sequence; characterized in that: The fixed parts of the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal are bent toward the fixed parts of the corresponding differential pair terminals on the opposite side to serve as upper and lower row differential pair terminal isolation parts; the upper and lower row differential pair terminal isolation parts are located between the upper row differential pair terminals and the lower row differential pair terminals.

2. A high-frequency connector for reducing signal crosstalk according to claim 1, characterized in that: The insulating seat is provided with slots corresponding to adjacent differential pair terminals in the same row, and an isolation sheet is inserted in the slot, so that: the isolation sheet is located between adjacent differential pair terminals in the same row to serve as an isolation portion for adjacent differential pair terminals in the same row, and the isolation sheet is exposed at the top and bottom of the insulating seat respectively.

3. A high-frequency connector for reducing signal crosstalk according to claim 2, characterized in that: The slots are respectively arranged corresponding to the first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal. After the isolation sheet is inserted into place, it forms contact and conduction with the corresponding first grounding terminal, the second grounding terminal, the third grounding terminal and the fourth grounding terminal respectively.

4. A high-frequency connector for reducing signal crosstalk according to claim 3, characterized in that: The upper and lower rows of differential terminal isolation parts are provided with positioning grooves, the positioning grooves pass through the upper and lower ends of the upper and lower rows of differential terminal isolation parts, and the isolation sheet is provided with a latching protrusion, and after the isolation sheet is inserted into place, the latching protrusion is latched into the positioning groove.

5. A high-frequency connector for reducing signal crosstalk according to claim 3, characterized in that: There are several slots, namely two first slots and two second slots; the first slot is recessed and extends forward from the rear end of the insulating seat, and the second slot is recessed and extends upward from the bottom of the insulating seat. The second grounding terminal and the fourth grounding terminal are respectively exposed in the two first slots, so that the corresponding isolation sheet is inserted forward from the rear end of the first slot, and the first grounding terminal and the third grounding terminal are respectively exposed in the two second slots, so that the corresponding isolation sheet is inserted upward from the bottom end of the second slot.

6. A high-frequency connector for reducing signal crosstalk according to claim 3, characterized in that: The isolation sheet is in contact and conduction with the metal shell at the top and bottom of the insulation seat respectively.

7. A high-frequency connector for reducing signal crosstalk according to claim 1, characterized in that: The outermost left and right widths of the isolating portions of the upper and lower rows of differential pair terminals are greater than the outermost left and right widths of the fixing portions of the corresponding differential pair terminals.

8. A high-frequency connector for reducing signal crosstalk according to claim 1, characterized in that: The front ends of the first differential pair terminal, the second differential pair terminal, the third differential pair terminal, and the fourth differential pair terminal are located behind the front end of the tongue plate to maintain a front-to-rear spacing. A groove is provided on the tongue plate on the opposite side of the corresponding differential pair terminal. The front end pre-break portion of the corresponding differential pair terminal is located in the groove so that the front end material strip of the corresponding differential pair terminal can be broken on the opposite side of the tongue plate. In addition, a support plane is reserved on the tongue plate portion just in front of the contact portion of the corresponding differential pair terminal for contact support when the male spring clip is inserted.

9. A high frequency connector for reducing signal crosstalk according to claim 1, characterized in that: The front end heads of the same differential pair terminals are arranged close to each other, and the adjacent terminal heads of adjacent differential pair terminals are arranged away from each other, so as to increase the distance between the adjacent terminal heads of adjacent differential pair terminals.

10. A high frequency connector for reducing signal crosstalk according to claim 1, characterized in that: The right lower edge of the right terminal of the first differential pair terminal, the left upper edge of the left terminal of the second differential pair terminal, the right upper edge of the right terminal of the second differential pair terminal, the left lower edge of the left terminal of the third differential pair terminal, the right lower edge of the right terminal of the third differential pair terminal, and the left upper edge of the left terminal of the fourth differential pair terminal are all chamfered.

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