High-speed connector

Abstract

The utility model provides a high-speed connector, which comprises an insulating main body and a conductive terminal assembly, the insulating main body extends along a first direction, a plurality of mounting grooves are arranged at intervals along the first direction, the mounting grooves are arranged along a second direction, the insulating main body is provided with plugging grooves extending along the first direction, the plugging grooves are communicated with the mounting grooves, and the conductive terminal assembly is arranged on the insulating main body. The plug-in groove is used for plugging external expansion equipment, the conductive terminal assembly comprises a plurality of signal terminals and ground terminals, the signal terminals and the ground terminals enter the plug-in groove through the mounting groove to contact the external expansion equipment, the signal terminals transmit differential signals, and the ground terminals are located on the two sides of the signal terminals to reduce interference. The middle part of the ground terminal is widened along the second direction and covers the signal terminal along the first direction, so that the anti-interference effect is enhanced. By widening the ground terminal and covering the adjacent signal terminals, the effective sectional area of the ground terminal is enlarged, shielding is enhanced, signal interference is suppressed, and the crosstalk problem is solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic connector technology, and in particular to a high-speed connector. Background Technology

[0002] As electronic devices evolve towards high-speed signal transmission, connectors play a crucial role in data transmission. In high-speed interfaces such as PCIe, USB, SATA, and Thunderbolt, the connector's signal integrity (SI) directly impacts system performance and stability. Existing high-speed connectors typically employ a design combining multiple signal terminals and ground terminals. To improve signal quality, common terminal arrangements include the "GSSGSSG" layout (G representing ground and S representing signal), which reduces crosstalk between signal terminals and enhances shielding effectiveness.

[0003] However, in existing high-speed connectors, crosstalk still exists between signal terminals during high-speed signal transmission, which can affect signal integrity and cause crosstalk between signal terminals. Utility Model Content

[0004] The purpose of this application is to provide a high-speed connector to solve the problem of crosstalk between signal terminals in the prior art.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] This application provides a high-speed connector, which includes an insulating body and a conductive terminal assembly, wherein:

[0007] An insulating body extends along a first direction, and a plurality of mounting slots are spaced apart along the first direction. The mounting slots are arranged along a second direction, and the opening of the mounting slots is located at the rear end of the insulating body along the second direction. A plug-in slot is provided on the insulating body, and the plug-in slot extends along the first direction. The plug-in slot is configured to plug in an external expansion device. A plurality of mounting slots are connected to the plug-in slot. The conductive terminal assembly enters the plug-in slot from the mounting slot to contact the external expansion device.

[0008] The conductive terminal assembly includes a plurality of signal terminals and a plurality of ground terminals. The signal terminals and ground terminals are spaced apart in a mounting groove along a first direction. The signal terminals are configured to transmit differential signals. The ground terminals are located on both sides of the signal terminals along the first direction. The ground terminals are configured to space adjacent signal terminals to reduce interference between signal terminals.

[0009] The width of the ground terminal in the middle along the second direction is greater than that of the signal terminal, and the ground terminal covers the signal terminal along the first direction to enhance the anti-interference effect.

[0010] Optionally, the signal terminal includes a first lever arm and a first elastic foot. The first end of the first lever arm is provided with a first contact portion, which enters the plug slot to contact the external expansion device. The second end of the first lever arm is fixedly connected to the first elastic foot, and the first elastic foot is connected to the external circuit board so that the external expansion device is electrically connected to the external circuit board.

[0011] The ground terminal includes a second lever arm and a second elastic foot. The first end of the second lever arm is provided with a second contact portion. The second contact portion enters the plug slot and contacts the external expansion device. The second end of the second lever arm is fixedly connected to the second elastic foot. The second elastic foot is connected to the external circuit board so that the external expansion device is electrically connected to the external circuit board.

[0012] The first contact portion and the second contact portion overlap in the first direction, and the first elastic foot tail portion and the second elastic foot tail portion overlap in the first direction.

[0013] Optionally, the signal terminal also includes a first retaining part, which is fixedly connected to the middle of the first lever arm. The first retaining part is configured to drive the first lever arm and the first elastic foot to be fixed in the mounting groove.

[0014] The ground terminal also includes a second retaining part, which is disposed in the mounting groove along the second direction. One end of the second retaining part is fixedly connected to the middle of the second lever arm. The second retaining part is configured to drive the second lever arm and the first elastic foot to be fixed in the mounting groove.

[0015] Optionally, a groove is provided on the second lever arm near the upper end of the second retaining part, with the opening of the groove facing the mounting groove.

[0016] Optionally, the groove is formed by stamping and puncturing.

[0017] Optionally, the signal terminal consists of a first terminal and a second terminal, which are arranged adjacent to each other along a first direction. The first terminal is configured to transmit a positive signal, and the second terminal is configured to transmit a reverse signal. The distance between the first terminal and the second terminal is the same as the distance between the first terminal or the second terminal and the adjacent ground terminal.

[0018] Optionally, the mounting slots are evenly spaced along the first direction.

[0019] Optionally, the ground terminal, the first terminal, and the second terminal are all integrally stamped.

[0020] Compared with the prior art, the high-speed connector proposed in this application has the following advantages:

[0021] 1) By widening the middle of the ground terminal along the second direction and covering the adjacent signal terminal, the effective cross-sectional area of ​​the ground terminal is expanded, which effectively enhances the shielding effect, suppresses interference between signals, and thus improves the crosstalk problem between signal terminals.

[0022] 2) By aligning the first contact portion and the second contact portion along the first direction, and by aligning the first elastic pin and the second elastic pin along the first direction, the transmission path length of the signal and ground loop is made consistent, reducing the differential pair delay difference, ensuring the synchronization of high-speed signal transmission, and maintaining the characteristic impedance continuity between adjacent terminals, reducing impedance fluctuations, thereby enhancing the high-frequency performance of the connector.

[0023] 3) By opening a groove with an opening facing the mounting slot near the upper end of the second lever arm, the groove forms an elastic area when the upper end of the ground terminal is subjected to external force, thereby reducing the positive force of the ground terminal, improving the ground terminal drop, and not affecting crosstalk. Attached Figure Description

[0024] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the high-speed connector provided in the embodiments of this application;

[0026] Figure 2 This is a partial three-dimensional structural schematic diagram of the conductive terminal assembly of the high-speed connector provided in the embodiments of this application;

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a partial side view of the conductive terminal assembly of the high-speed connector provided in an embodiment of this application. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 4 As shown in the embodiment of this application, a high-speed connector includes an insulating body 10 and a conductive terminal assembly 20, wherein:

[0031] Insulating body 10 along the first direction ( Figure 1 Extending in the direction of X, the insulating body 10 is provided with a plurality of mounting grooves 11 spaced apart along the first direction, and the mounting grooves 11 extend along the second direction ( Figure 1 The mounting slot 11 is set in the Y direction, and the opening of the mounting slot 11 is located at the rear end of the insulating body 10 along the second direction. The insulating body 10 is provided with a plug-in slot 12, which extends along the first direction. The plug-in slot 12 is configured to plug in an external expansion device. Several mounting slots 11 are connected to the plug-in slot 12. The conductive terminal assembly 20 enters the plug-in slot 12 from the mounting slot 11 to contact the external expansion device.

[0032] The conductive terminal assembly 20 includes a plurality of signal terminals 21 and a plurality of ground terminals 22. The signal terminals 21 and ground terminals 22 are spaced apart in the mounting groove 11 along a first direction. The signal terminals 21 are configured to transmit differential signals. The ground terminals 22 are located on both sides of the signal terminals 21 along the first direction. The ground terminals 22 are configured to space adjacent signal terminals 21 to reduce interference between signal terminals 21.

[0033] The width of the middle part of the ground terminal 22 along the second direction is greater than that of the signal terminal 21, and the ground terminal 22 covers the signal terminal 21 along the first direction to enhance the anti-interference effect.

[0034] Specifically, external expansion devices are solid-state drives or wireless network cards.

[0035] By widening the middle of the ground terminal 22 along the second direction and covering the adjacent signal terminal 21, the effective cross-sectional area of ​​the ground terminal 22 is expanded, which effectively enhances the shielding effect, suppresses interference between signals, and thus improves the crosstalk problem between signal terminals 21.

[0036] In one embodiment, the signal terminal 21 includes a first lever arm 210 and a first elastic foot 211. The first end of the first lever arm 210 is provided with a first contact portion 2100, which enters the plug-in slot 12 to contact the external expansion device. The second end of the first lever arm 210 is fixedly connected to the first elastic foot 211, which is connected to an external circuit board to enable the external expansion device to be electrically connected to the external circuit board.

[0037] The ground terminal 22 includes a second lever arm 220 and a second elastic foot 221. The first end of the second lever arm 220 is provided with a second contact portion 2200. The second contact portion 2200 enters the plug-in slot 12 and contacts the external expansion device. The second end of the second lever arm 220 is fixedly connected to the second elastic foot 221. The second elastic foot 221 is connected to the external circuit board so that the external expansion device is electrically connected to the external circuit board.

[0038] The first contact portion 2100 and the second contact portion 2200 coincide in the first direction, and the tail of the first elastic foot 211 coincides with the tail of the second elastic foot 221 in the first direction.

[0039] By aligning the first contact portion 2100 and the second contact portion 2200 along the first direction, and by aligning the first elastic pin 211 and the second elastic pin 221 along the first direction, the transmission path length of the signal and ground loop is made consistent, reducing the differential pair delay difference, ensuring the synchronization of high-speed signal transmission, and maintaining the characteristic impedance continuity between adjacent terminals, reducing impedance fluctuations, and enhancing the high-frequency performance of the connector.

[0040] In one embodiment, the signal terminal 21 further includes a first retaining portion 212, which is fixedly connected to the middle of the first lever arm 210. The first retaining portion 212 is configured to drive the first lever arm 210 and the first elastic foot 211 to be fixed in the mounting groove 11.

[0041] The ground terminal 22 also includes a second retaining part 222, which is disposed in the second direction toward the mounting groove 11. One end of the second retaining part 222 is fixedly connected to the middle part of the second lever arm 220. The second retaining part 222 is configured to drive the second lever arm 220 and the first elastic foot 211 to be fixed in the mounting groove 11.

[0042] Specifically, a first fixing groove is provided in the mounting groove 11 corresponding to the signal terminal 21. The first fixing groove is adapted to the first holding part 212, and the first holding part 212 is fixed in the first fixing groove. A second fixing groove is provided in the mounting groove 11 corresponding to the ground terminal 22. The second fixing groove is adapted to the second holding part 222, and the second holding part 222 is fixed in the second fixing groove.

[0043] By providing retaining parts on the signal terminal 21 and the ground terminal 22, it is easy to fix the terminal in the corresponding mounting groove 11 by cooperating with the corresponding fixing groove, so as to avoid the terminal from shifting and improve the stability and safety of the connector operation.

[0044] In one embodiment, a groove 2201 is provided on the upper end of the second lever arm 220 near the second retaining part 222, and the opening of the groove faces the mounting groove 11.

[0045] By opening a groove 2201 with an opening facing the mounting groove 11 near the upper end of the second lever arm 220 and the second holding part 222, the groove 2201 forms an elastic area when the upper end of the ground terminal 22 is subjected to external force, thereby reducing the positive force of the ground terminal 22, improving the ground terminal 22 descent, and not affecting crosstalk.

[0046] In one embodiment, the groove 2201 is formed by stamping and puncturing.

[0047] By using a stamping and puncturing process to form the groove 2201, the processing steps of the groove 2201 are simplified, production efficiency is improved, and manufacturing costs are reduced.

[0048] In one embodiment, the signal terminal 21 is composed of a first terminal 23 and a second terminal 24, which are arranged adjacent to each other along a first direction. The first terminal 23 is configured to transmit a positive signal, and the second terminal 24 is configured to transmit a reverse signal. The distance between the first terminal 23 and the second terminal 24 is the same as the distance between the first terminal 23 or the second terminal 24 and the adjacent ground terminal 22.

[0049] Specifically, the first terminal 23 and the second terminal 24 have the same structure.

[0050] By using an alternating arrangement of positive and negative signal terminals, and ensuring that the spacing between adjacent first terminals 23 and second terminals 24, as well as the distance between the first terminal 23 or the second terminal 24 and the adjacent ground terminal 22, the impedance distribution of the signal channel is made uniform, signal reflection is reduced, transmission quality is improved, and signal loss and crosstalk during differential signal transmission are reduced, thus improving signal integrity.

[0051] In one embodiment, the mounting slots 11 are evenly spaced along a first direction.

[0052] Specifically, the first terminal 23 and the second terminal 24 are fixedly installed in their respective mounting slots 11.

[0053] By uniformly spacing the mounting slots 11 along the first direction, the ground terminal 22, the first terminal 23, and the second terminal 24 are ensured to be uniformly arranged along the first direction, so that the adjacent signal terminals 21 have a uniform shielding effect, thereby reducing electromagnetic coupling between signals, reducing crosstalk, and improving signal quality.

[0054] In one embodiment, the ground terminal 22, the first terminal 23, and the second terminal 24 are all integrally stamped.

[0055] By adopting an integrated stamping process, the ground terminal 22, the first terminal 23, and the second terminal 24 are formed into one piece, reducing assembly steps, improving production efficiency, and enhancing the precision and consistency between terminals, thereby improving product quality.

[0056] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A high-speed connector, characterized in that, The high-speed connector includes an insulating body and a conductive terminal assembly, wherein: The insulating body extends along a first direction, and a plurality of mounting slots are spaced apart along the first direction. The mounting slots are arranged along a second direction, and the opening of the mounting slot is located at the rear end of the insulating body along the second direction. A plug-in slot is provided on the insulating body, and the plug-in slot extends along the first direction. The plug-in slot is configured to plug in an external expansion device. A plurality of the mounting slots communicate with the plug-in slot. The conductive terminal assembly enters the plug-in slot through the mounting slot to contact the external expansion device. The conductive terminal assembly includes a plurality of signal terminals and a plurality of ground terminals. The signal terminals and the ground terminals are spaced apart in the mounting groove along the first direction. The signal terminals are configured to transmit differential signals. The ground terminals are located on both sides of the signal terminals along the first direction. The ground terminals are configured to be spaced apart from adjacent signal terminals to reduce interference between signal terminals. The width of the ground terminal in the middle along the second direction is greater than that of the signal terminal, and the ground terminal covers the signal terminal along the first direction to enhance the anti-interference effect.

2. The high-speed connector according to claim 1, characterized in that, The signal terminal includes a first lever arm and a first elastic foot. The first end of the first lever arm is provided with a first contact portion, which enters the plug slot and contacts the external expansion device. The second end of the first lever arm is fixedly connected to the first elastic foot, and the first elastic foot is connected to an external circuit board so that the external expansion device is electrically connected to the external circuit board. The ground terminal includes a second lever arm and a second elastic foot. The first end of the second lever arm is provided with a second contact portion. The second contact portion enters the plug slot and contacts the external expansion device. The second end of the second lever arm is fixedly connected to the second elastic foot. The second elastic foot is connected to an external circuit board so that the external expansion device is electrically connected to the external circuit board. The first contact portion and the second contact portion overlap along the first direction, and the first elastic foot tail portion and the second elastic foot tail portion overlap along the first direction.

3. The high-speed connector according to claim 2, characterized in that, The signal terminal further includes a first retaining part, which is fixedly connected to the middle part of the first lever arm. The first retaining part is configured to drive the first lever arm and the first elastic foot to be fixed in the mounting groove. The ground terminal also includes a second retaining part, which is disposed toward the mounting groove along the second direction. One end of the second retaining part is fixedly connected to the middle part of the second lever arm. The second retaining part is configured to drive the second lever arm and the first elastic foot to be fixed in the mounting groove.

4. The high-speed connector according to claim 3, characterized in that, The second lever arm has a groove near the upper end of the second holding part, and the opening of the groove faces the mounting groove.

5. The high-speed connector according to claim 4, characterized in that, The groove is formed by punching and piercing.

6. The high-speed connector according to claim 1, characterized in that, The signal terminal consists of a first terminal and a second terminal, which are arranged adjacent to each other along the first direction. The first terminal is configured to transmit a positive signal, and the second terminal is configured to transmit a negative signal. The distance between the first terminal and the second terminal is the same as the distance between the first terminal or the second terminal and the adjacent ground terminal.

7. The high-speed connector according to claim 6, characterized in that, The mounting slots are evenly spaced along the first direction.

8. The high-speed connector according to claim 6, characterized in that, The ground terminal, the first terminal, and the second terminal are all integrally stamped.

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