Connector for high-speed signal transmission

Abstract

The utility model provides a connector for high-speed signal transmission, which comprises an insulating main body and a plurality of conductive terminals, and is characterized in that a plugging groove is formed in the middle of the insulating main body along a first direction, extends along the first direction and is configured to plug external expansion equipment; a plurality of mounting grooves are formed in the two sides, extending in the first direction, of the plugging groove, and the mounting grooves are configured to mount the corresponding conductive terminals; the conductive terminal comprises a holding part and a conductive part, the holding part is fixedly mounted at the bottom end of the insulating main body along the second direction, the holding part is configured to support the conductive part to be mounted in the mounting groove, the first end of the conductive part is fixedly connected with the holding part, and the width of the middle part of the conductive part is greater than that of the first end of the conductive part, so that the characteristic impedance of the conductive terminal is enhanced. The width of the middle part of the conductive part is larger than that of the first end of the conductive part, so that the characteristic impedance of the conductive terminal is optimized, the signal loss is reduced, and the integrity of high-speed signal transmission is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic connector technical field especially relates to a connector for high speed signal transmission. BACKGROUND

[0002] With the development of electronic equipment to high speed, miniaturization, the signal transmission performance and durability of the connector are put forward to higher request. Especially in the external expansion device (SSD), wireless network card and other high speed signal transmission application scene, adopt high speed signal transmission technology can reduce signal attenuation and error rate, improve the efficiency and accuracy of data transmission.

[0003] However, the existing vertical connector slot usually adopts the traditional structure, and the terminal shape design often cannot fully optimize the signal transmission characteristics, which may introduce signal attenuation, impedance mismatch, crosstalk and return loss and other problems in the high speed signal transmission process, affecting the stability and integrity of data transmission. UTILITY MODEL CONTENTS

[0004] The purpose of the application is to provide a connector for high speed signal transmission to solve the problem that the connector structure in the prior art cannot meet the high speed signal transmission.

[0005] To achieve this purpose, the application adopts the following technical scheme:

[0006] The application provides a connector for high speed signal transmission, which comprises an insulating body and a plurality of conductive terminals, wherein:

[0007] The insulating body is centrally provided with a plug-in slot along a first direction, 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 provided on both sides of the plug-in slot extending along the first direction, and the mounting slots are configured to mount corresponding conductive terminals;

[0008] The conductive terminal comprises a holding part and a conductive part, the holding part is fixedly installed at the bottom end of the insulating body along a second direction, the holding part is configured to support the conductive part to be installed in the mounting slot, the first end of the conductive part is fixedly connected with the holding part, and the width of the middle part of the conductive part is greater than the width of the first end of the conductive part, so as to enhance the characteristic impedance of the conductive terminal.

[0009] Optionally, the conductive part is inclined towards the plug-in slot, the second end of the conductive part enters the plug-in slot from the mounting slot, the second end of the conductive part is provided with a guide surface upward, the guide surface is a convex arc and is inclined along the second direction towards the side away from the plug-in slot, and the external expansion device is in contact with the guide surface when being inserted into the plug-in slot.

[0010] Optionally, the mounting slots are uniformly arranged along the first direction, the mounting slots extend along the second direction and communicate with the plug-in slot, and the plurality of mounting slots on both sides of the plug-in slot extending along the first direction are staggered.

[0011] Optionally, each mounting slot has a first limiting part and a second limiting part spaced apart at its lower end in the vertical direction. The first limiting part is located above the second limiting part, and a limiting channel is formed between the first limiting part and the second limiting part. The first end of the holding part in the second direction is fixedly connected to the limiting channel. At this time, the first end of the conductive part abuts against the first limiting part on one side in the second direction.

[0012] Optionally, a notch is provided at the bottom where the retaining part contacts the second limiting part, and the notch is located below the first end of the conductive part.

[0013] Optionally, a limiting groove is provided on the inner wall of the limiting channel, and a limiting block is provided on the first end of the holding part. The limiting groove and the limiting block are adapted to each other. The first end of the holding part is inserted into the limiting channel so that the limiting block and the limiting groove are engaged, thereby fixing the holding part on the insulating body.

[0014] Optionally, the conductive terminal also includes a terminal foot, the first end of which is fixedly connected to the second end of the retaining portion along the second direction, the second end of which is connected to an external circuit board, and the terminal foot is provided with an inclined section near the second end of the retaining portion.

[0015] Optionally, the retaining part, conductive part, and terminal pin are integrally molded.

[0016] Compared with the prior art, the connector for high-speed signal transmission proposed in this application has the following advantages:

[0017] 1) By setting the width of the middle part of the conductive part to be greater than the width of the first end of the conductive part, the characteristic impedance of the conductive terminal is optimized, signal loss is reduced, and the integrity of high-speed signal transmission is improved.

[0018] 2) By tilting the conductive part and forming a convex arc-shaped guide surface at the second end, a sharp point is formed at the terminal head, which reduces the width of the terminal head to meet high frequency requirements, while reducing wear on the terminal head and external expansion equipment, and improving the durability of the connector.

[0019] 3) By providing a notch at the bottom where the holding part contacts the second limiting part, the characteristic impedance of the terminal is further optimized, thereby meeting the transmission characteristics of high-frequency signals and achieving the requirements of high-speed signal transmission.

[0020] 4) By setting an inclined structure at the terminal pins, the signal transmission distance is shortened and the signal transmission efficiency is improved. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a three-dimensional structural diagram of the connection state of the connector for high-speed signal transmission provided in the embodiments of this application;

[0023] Figure 2 This is a cross-sectional view of a connector for high-speed signal transmission provided in an embodiment of this application;

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a three-dimensional structural diagram of the conductive terminals of a connector for high-speed signal transmission provided in an embodiment of this application. Detailed Implementation

[0026] 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 more 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.

[0027] Please see Figures 1 to 4 As shown in the embodiment of this application, a connector for high-speed signal transmission is provided, which includes an insulating body 10 and a plurality of conductive terminals 20, wherein: the insulating body 10 has terminals 20 along a first direction ( Figure 1A centrally located insertion slot 11 is provided in the direction of X. The insertion slot 11 extends along a first direction and is configured to insert an external expansion device 30. Several mounting slots 12 are provided on both sides of the insertion slot 11 extending along the first direction. The mounting slots 12 are configured to mount corresponding conductive terminals 20. The conductive terminal 20 includes a retaining portion 21 and a conductive portion 22. The retaining portion 21 extends along a second direction (…). Figure 1 The conductive part 22 is fixedly installed at the bottom of the insulating body 10 in the Y direction. The holding part 21 is configured to support the conductive part 22 installed in the mounting groove 12. The first end of the conductive part 22 is fixedly connected to the holding part 21. The width of the middle part of the conductive part 22 is greater than the width of the first end of the conductive part 22 to enhance the characteristic impedance of the conductive terminal 20.

[0028] Specifically, the external expansion device 30 is configured as a solid-state drive.

[0029] By setting the width of the middle part of the conductive part 22 to be greater than the width of the first end of the conductive part 22, the characteristic impedance of the conductive terminal 20 is optimized, signal loss is reduced, and the integrity of high-speed signal transmission is improved.

[0030] In one embodiment, the conductive part 22 is inclined toward the insertion slot 11, and the second end of the conductive part 22 enters the insertion slot 11 through the mounting slot 12. The second end of the conductive part 22 is provided with a guide surface 221 facing upward. The guide surface 221 is convex arc-shaped and inclined toward the side away from the insertion slot 11 along the second direction. When the external extension device 30 is inserted into the insertion slot 11, it contacts the guide surface 221.

[0031] By tilting the conductive part 22 and forming a convex arc-shaped guide surface 221 at the second end of the conductive part, a sharp point is formed at the terminal head. This reduces the width of the terminal head to meet high-frequency requirements, while also reducing wear on the terminal head and the external expansion device 30. This facilitates the smooth insertion of the external expansion device 30 into the insertion slot 11. At the same time, the tilted structure of the conductive part 22 enhances the stability and reliability of insertion and removal, and increases the durability of the connector.

[0032] In one embodiment, the mounting grooves 12 are evenly spaced along a first direction, the mounting grooves 12 extend along a second direction and communicate with the insertion grooves 11, and a plurality of mounting grooves 12 on both sides of the insertion grooves 11 extending along the first direction are staggered.

[0033] By uniformly arranging the mounting slots 12 along the first direction and staggering them along the second direction, the conductive terminals 20 arranged in the mounting slots 12 form a staggered layout along the second direction to be staggeredly connected with the external expansion device 30 along the second direction, thereby optimizing the signal path, reducing signal reflection during high-speed transmission, thereby reducing return loss and improving the accuracy of data transmission.

[0034] In one embodiment, each mounting groove 12 has a first limiting part 13 and a second limiting part 14 spaced apart at its lower end in the vertical direction. The first limiting part 13 is located above the second limiting part 14, and a limiting channel 15 is formed between the first limiting part 13 and the second limiting part 14. The first end of the holding part 21 along the second direction is fixedly connected to the limiting channel 15. At this time, the first end of the conductive part 22 abuts against the first limiting part 13 on one side along the second direction.

[0035] Specifically, the first limiting part 13 and the second limiting part 14 are respectively arranged along the second direction.

[0036] The first limiting part 13 and the second limiting part 14 cooperate to effectively fix the holding part 21 of the conductive terminal 20, improve the installation stability of the terminal, prevent loosening, and thus improve the durability and long-term reliability of the connector.

[0037] In one embodiment, a notch 16 is provided at the bottom where the retaining part 21 contacts the second limiting part 14, and the notch 16 is located below the first end of the conductive part 22.

[0038] By providing a notch 16 at the bottom where the retaining part 21 contacts the second limiting part 14, the characteristic impedance of the terminal is further optimized, thereby meeting the transmission characteristics of high-frequency signals and achieving the requirements of high-speed signal transmission.

[0039] In one embodiment, a limiting groove is formed in the inner wall of the limiting channel 15, and a limiting block 210 is provided on the first end of the holding part 21. The limiting groove and the limiting block 210 are adapted to each other. The first end of the holding part 21 is inserted into the limiting channel 15 so that the limiting block 210 is engaged with the limiting groove, thereby fixing the holding part 21 on the insulating body 10.

[0040] Specifically, the limiting block 210 is configured with barbs that are inclined toward the second end of the retaining part 21.

[0041] The snap-fit ​​design of the limiting groove and the limiting block 210 provides an additional mechanical lock for the retaining part 21 within the limiting channel 15, preventing the conductive terminal 20 from coming loose, while ensuring the installation accuracy of the conductive terminal 20 and improving the production yield.

[0042] In one embodiment, the conductive terminal 20 further includes a terminal foot 23, the first end of the terminal foot 23 being fixedly connected to the second end of the retaining portion 21 along the second direction, the second end of the terminal foot 23 being connected to the external circuit board 40, and the terminal foot 23 being provided with an inclined section 230 near the second end of the retaining portion 21.

[0043] Specifically, the external circuit board 40 is configured as a PCB board.

[0044] Specifically, the second limiting part 14 is provided with an inclined surface 140 at one end near the terminal foot 23. The inclined surface 140 has the same inclination angle as the inclined section 230. The inclined section 230 contacts the inclined surface 140 to limit the terminal foot 23 along the second direction, which further improves the accuracy of the retaining part 21 in the limiting channel 15.

[0045] By setting an inclined structure at terminal pin 23, the signal transmission distance is shortened and the signal transmission efficiency is improved to meet the requirements of high-speed signal transmission.

[0046] In one embodiment, the retaining portion 21, the conductive portion 22, and the terminal pin 23 are integrally formed.

[0047] By adopting a design that integrates the retaining part 21, the conductive part 22, and the terminal pin 23, the contact resistance between components is reduced, the signal transmission path is optimized, the conductivity is improved, the manufacturing process is simplified, the production efficiency is increased, and the manufacturing cost is reduced.

[0048] 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 connector for high speed signal transmission, characterized by, The connector for high-speed signal transmission comprises an insulating body and a plurality of conductive terminals, wherein: a plug-in slot is centrally formed on the insulating body along a first direction, 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 formed on both sides of the plug-in slot along the first direction, and the mounting slots are configured to mount corresponding conductive terminals; the conductive terminal comprises a holding part and a conductive part, the holding part is fixedly mounted at the bottom end of the insulating body along a second direction, the holding part is configured to support the conductive part to be mounted in the mounting slot, the first end of the conductive part is fixedly connected with the holding part, and the width of the middle part of the conductive part is greater than the width of the first end of the conductive part, so as to enhance the characteristic impedance of the conductive terminal.

2. The connector for high speed signal transmission of claim 1, wherein, The conductive part is inclined towards the plug-in slot, the second end of the conductive part enters the plug-in slot from the mounting slot, the second end of the conductive part is provided with a guide surface upward, the guide surface is a convex arc and is inclined towards the side away from the plug-in slot along the second direction, and the external expansion device is in contact with the guide surface when being inserted into the plug-in slot.

3. The connector for high speed signal transmission of claim 2, wherein, The mounting slots are uniformly arranged along the first direction, the mounting slots extend along the second direction and communicate with the plug-in slot, and the mounting slots on both sides of the plug-in slot along the first direction are staggered.

4. The connector for high speed signal transmission of claim 2, wherein, The lower end of each mounting slot is arranged with a first limiting part and a second limiting part along the vertical direction, the first limiting part is located above the second limiting part, a limiting passage is formed between the first limiting part and the second limiting part, the first end of the holding part is fixedly connected with the limiting passage along the second direction, and at this time, the first end of the conductive part is abutted on the first limiting part along one side of the second direction.

5. The connector for high speed signal transmission of claim 4, wherein, The bottom of the holding part in contact with the second limiting part is provided with a notch, and the notch is located below the first end of the conductive part.

6. The connector for high speed signal transmission of claim 4, wherein, A limiting groove is formed in the inner wall of the limiting passage, a limiting block is arranged on the first end of the holding part, the limiting groove is matched with the limiting block, the first end of the holding part is inserted into the limiting passage so that the limiting block is clamped with the limiting groove, and the fixation of the holding part on the insulating body is realized.

7. The connector for high speed signal transmission of claim 1, wherein, The conductive terminal further comprises a terminal pin, the first end of the terminal pin is fixedly connected with the second end of the holding part along the second direction, the second end of the terminal pin is connected with an external circuit board, and the terminal pin is provided with an inclined section close to the second end of the holding part.

8. The connector for high speed signal transmission of claim 7, wherein, The holding part, the conductive part and the terminal pin are integrally formed.

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