Connector with high-frequency performance

Abstract

The utility model provides a connector with high-frequency performance, 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 upper end of the insulating main body along a first direction and is used for plugging external expansion equipment; a plurality of mounting grooves are formed in the two sides of the inserting groove in the first direction and used for mounting the conductive terminals, each conductive terminal comprises a base, a force arm and a weld leg, the first end of the force arm is fixedly connected with the first end of the base, the second end of the base is fixedly connected with the first end of the weld leg, and the second end of the weld leg makes contact with the circuit board. The force arm is inclined close to the plugging groove, the second end is bent downwards towards the plugging groove, enters the plugging groove through the mounting groove and then is bent inwards to enter the mounting groove again to form an arc-shaped contact part, and the contact part is used for being in contact with external expansion equipment so as to realize electric connection of the external expansion equipment to a circuit board. By arranging the contact part with the arc structure on the conductive terminal, the invalid area of the contact part can be reduced, the characteristic impedance mismatch is avoided, and the high-frequency performance is improved. In addition, the inclination angle of the force arm is reduced, and insertion force can be reduced.

Description

Technical Field

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

[0002] As electronic devices evolve towards higher speeds and smaller sizes, higher demands are placed on the signal transmission performance and durability of connectors. Especially in high-speed signal transmission applications such as solid-state drives (SSDs) and wireless network cards, employing high-speed signal transmission technology can reduce signal attenuation and bit error rate, thereby improving data transmission efficiency and accuracy.

[0003] However, traditional connector terminals have large ineffective areas (i.e., regions that do not participate in effective contact) at the contact points, leading to characteristic impedance mismatch in the signal transmission path and significantly degrading high-frequency performance (such as insertion loss, return loss, and crosstalk interference). Furthermore, the large ineffective areas increase signal reflection, limiting the connector's application in high-frequency, high-speed scenarios. Utility Model Content

[0004] The purpose of this application is to provide a connector with high-frequency performance to solve the problem of poor high-frequency performance of connectors in the prior art.

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

[0006] This application provides a connector with high-frequency performance, comprising an insulating body and a plurality of conductive terminals, wherein:

[0007] The upper end of the insulating body is provided with a plug-in groove centered along the first direction. The plug-in groove extends along the first direction and is configured to plug in external expansion devices. Several mounting grooves are provided on both sides of the plug-in groove along the first direction and are configured to install corresponding conductive terminals.

[0008] The conductive terminal includes a base, a lever arm, and a solder foot. The first end of the lever arm is fixedly connected to the first end of the base, and the second end of the base is fixedly connected to the first end of the solder foot. The second end of the solder foot contacts the circuit board. The lever arm is inclined close to the insertion slot. The second end of the lever arm bends downward toward the insertion slot to enter the insertion slot from the mounting slot. After entering the insertion slot, the second end of the lever arm bends inward to re-enter the mounting slot to form an arc-shaped contact portion. The contact portion is configured to contact an external expansion device to achieve its electrical connection to the circuit board.

[0009] Optionally, the tail of the contact portion has an inwardly curved, pointed structure.

[0010] Optionally, the contact portion can be a single-curvature arc-shaped structure.

[0011] Optionally, the contact portion is an arc-shaped structure composed of multiple arc segments with different curvatures.

[0012] Optionally, the contact portion may be provided with a widened section to enhance the structural strength of the contact portion.

[0013] Optionally, the conductive terminal also includes a retaining part, one end of which is fixedly connected to the base. The retaining part is disposed in the second direction toward the insulating body. A fixing groove is provided in the mounting groove in the second direction. The retaining part is configured to be fixed in the fixing groove with a power arm.

[0014] Optionally, the inner wall of the fixing groove is provided with an inclined limiting groove, and the bottom surface of the holding part is provided with a limiting block inclined towards the welding foot. The limiting block can generate elastic deformation to move closer to the bottom surface of the holding part. The limiting groove and the limiting block fit together. The holding part is inserted into the fixing groove until the limiting block reaches the top of the limiting groove and generates a rebound, so as to fix the holding part in the fixing groove, thereby realizing the fixing of the conductive terminal in the mounting groove.

[0015] Optionally, a first limiting surface and a second limiting surface are provided on both sides of the opening of the fixing groove along the vertical direction. The first limiting surface and the second limiting surface are located on the same vertical plane. When the limiting block enters the limiting groove, the first limiting surface abuts against one side of the base and the second limiting surface abuts against the first end of the welding foot, so as to limit the conductive terminal in the mounting groove along the second direction.

[0016] Compared with existing technologies, the connector with high-frequency performance proposed in this application has the following advantages:

[0017] 1) By setting an arc-shaped contact portion at the end of the conductive terminal that contacts the external expansion device, the tail of the contact portion entering the insertion slot is effectively reduced, thereby reducing the area of ​​the contact portion that does not participate in contact with the external expansion device, avoiding characteristic impedance mismatch, improving the high-frequency performance of the connector, and increasing the amount of the contact portion body embedded in the insertion slot, thus enhancing the conductive terminal's resistance to deformation and damage from the insertion card.

[0018] 2) By setting the contact part with an arc structure facing the insertion slot, the angle of the lever arm tilting towards the insertion slot is reduced, which effectively reduces the insertion force when inserting the card.

[0019] 3) The design of widened contact sections prevents deformation of the contact parts during high-frequency vibration or insertion / removal, thus extending their service life. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a three-dimensional structural diagram of a connector with high-frequency performance provided in an embodiment of this application;

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a cross-sectional view of a connector with high-frequency performance provided in an embodiment of this application;

[0024] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0025] Figure 5 This is a three-dimensional structural diagram of the conductive terminals of a connector with high-frequency performance provided in an embodiment of this application;

[0026] Figure 6 This is a three-dimensional structural diagram of the connection state of the connector with high-frequency performance provided in the embodiments of this application. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1 to 6 As shown in the embodiment of this application, a connector with high-frequency performance is provided, which includes an insulating body 10 and a plurality of conductive terminals 20, wherein:

[0029] The upper end of the insulating body 10 along the first direction ( Figure 1A plug-in slot 11 is provided in the center of the first direction (in the direction of X). The plug-in slot 11 extends along the first direction and is configured to plug in an external expansion device 30. Several mounting slots 12 are provided on both sides of the plug-in slot 11 along the first direction. The mounting slots 12 are configured to install corresponding conductive terminals 20.

[0030] The conductive terminal 20 includes a base 21, a lever arm 22, and a solder foot 23. The first end of the lever arm 22 is fixedly connected to the first end of the base 21, and the second end of the base 21 is fixedly connected to the first end of the solder foot 23. The second end of the solder foot 23 contacts the circuit board 40. The lever arm 22 is inclined close to the insertion slot 11. The second end of the lever arm 22 bends downward toward the insertion slot 11 to enter the insertion slot 11 through the mounting slot 12. After that, the second end of the lever arm 22 bends inward to re-enter the mounting slot 12 to form an arc-shaped contact portion 220. The contact portion 220 is configured to contact the external expansion device 30 to realize its electrical connection to the circuit board 40.

[0031] Specifically, circuit board 40 is configured as a PCB board.

[0032] Specifically, the external expansion device 30 is configured as a solid-state drive.

[0033] Specifically, the contact portion 220 is along the second direction ( Figure 1 The outer wall of the Y-direction is provided with an upwardly inclined contact surface 2201. The inclined contact surface 2201 contacts the solid-state drive inserted into the insertion slot 11 to reduce the friction of insertion and improve the insertion efficiency.

[0034] By providing an arc-shaped contact portion 220 at the end of the conductive terminal 20 that contacts the external expansion device 30, on the one hand, the tail of the contact portion 220 entering the insertion groove 11 is effectively reduced, thereby reducing the area of ​​the contact portion 220 that does not participate in contact with the external expansion device 30, avoiding characteristic impedance mismatch, and improving the high-frequency performance of the connector. At the same time, it increases the amount of the contact portion 220 body embedded in the insertion groove 11, enhancing the conductive terminal 20's resistance to card deformation and damage. On the other hand, it reduces the angle of the lever arm 22 tilting towards the insertion groove 11, effectively reducing the insertion force when inserting the card.

[0035] In one embodiment, the tail portion 2202 of the contact portion 220 has an inwardly curved pointed structure.

[0036] By setting the tail 2202 of the contact portion 220 to an inwardly curved pointed structure, the area of ​​the contact portion 220 that does not participate in contact with the external expansion device 30 is further reduced, effectively improving insertion loss and crosstalk problems, and enabling it to meet the characteristics of high-frequency transmission.

[0037] In one embodiment, the contact portion 220 is an arc-shaped structure with a single curvature.

[0038] By employing a single-curvature circular arc structure to achieve uniform impedance distribution along the signal transmission path, not only are connector insertion loss and return loss reduced, but the manufacturing process is also simplified, minimizing the impact of processing errors on high-frequency performance.

[0039] In one embodiment, the contact portion 220 is an arc-shaped structure composed of multiple arc segments with different curvatures.

[0040] By using combinations of arc segments with different curvatures, the transmission requirements of signals at different frequencies can be adapted, thereby improving the flexibility and adaptability of the connector.

[0041] In one embodiment, the contact portion 220 is provided with a widened section 2203 to enhance the structural strength of the contact portion 220.

[0042] The widened section 2203 of the contact portion 220 is designed to prevent the contact portion 220 from deforming during high-frequency vibration or insertion and removal, thereby extending its service life.

[0043] In one embodiment, the conductive terminal 20 further includes a retaining portion 24, one end of which is fixedly connected to the base 21. The retaining portion 24 is disposed toward the insulating body 10 along the second direction. A fixing groove 120 is provided in the mounting groove 12 along the second direction. The retaining portion 24 is configured to fix the power arm 22 in the fixing groove 120.

[0044] By providing a retaining part 24 and installing the retaining part 24 in the fixing groove 120, the terminals are prevented from shifting in the mounting groove 12 due to external forces, thereby improving the stability and safety of the connector during use.

[0045] In one embodiment, the inner wall of the fixing groove 120 is provided with an inclined limiting groove, and the bottom surface of the holding part 24 is provided with a limiting block 240 inclined toward the welding foot 23. The limiting block 240 can generate elastic deformation to move toward the bottom surface of the holding part 24. The limiting groove and the limiting block 240 fit together. The holding part 24 is inserted into the fixing groove 120 until the limiting block 240 reaches the top of the limiting groove and generates a rebound, so as to fix the holding part 24 in the fixing groove 120, thereby realizing the fixation of the conductive terminal 20 in the mounting groove 12.

[0046] By cooperating with the limiting groove, the elastic limiting block 240 provides a self-locking buckle through the elastic deformation mechanism of the limiting block 240, preventing the terminal from falling off or loosening and ensuring the stability of high-frequency signal transmission.

[0047] In one embodiment, a first limiting surface 13 and a second limiting surface 14 are provided on both sides of the opening of the fixing groove 120 along the vertical direction. The first limiting surface 13 and the second limiting surface 14 are located on the same vertical plane. When the limiting block 240 enters the limiting groove, the first limiting surface 13 abuts against one side of the base 21 and the second limiting surface 14 abuts against the first end of the solder foot 23, so as to limit the conductive terminal 20 in the mounting groove 12 along the second direction.

[0048] By having the first limiting surface 13 and the second limiting surface 14 respectively abut against the force arm 22 and the solder foot 23 on the conductive terminal 20 in the second direction, the precise installation of the retaining part 24 in the fixing groove 120 is ensured, thereby avoiding signal interruption caused by misalignment of the contact part 220 of the conductive terminal 20.

[0049] 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 having high frequency performance, characterized by, The connector with high-frequency performance comprises an insulating body and a plurality of conductive terminals, wherein: A plug-in slot is centrally formed on the upper end of the insulating body along a first direction, the plug-in slot extends along the first direction, and 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 base, a force arm, and a solder leg, the first end of the force arm is fixedly connected to the first end of the base, the second end of the base is fixedly connected to the first end of the solder leg, the second end of the solder leg is in contact with a circuit board, the force arm is inclined close to the plug-in slot, the second end of the force arm is bent downward toward the plug-in slot after entering the plug-in slot from the mounting slot, and the second end of the force arm is bent inward to re-enter the mounting slot to form a circular-arc-shaped contact part, the contact part is configured to contact the external expansion device to realize electrical connection of the circuit board.

2. The connector with high frequency performance according to claim 1, characterized by, The tail of the contact part is in the form of an inwardly bent sharp structure.

3. The connector with high frequency performance according to claim 1, characterized by, The contact part is a single-curvature circular-arc-shaped structure.

4. The connector with high frequency performance according to claim 1, characterized by, The contact part is a circular-arc-shaped structure composed of a plurality of circular-arc segments with different curvatures.

5. The connector with high frequency performance according to claim 1, characterized by, The contact part is provided with a widened section to enhance the structural strength of the contact part.

6. The connector with high frequency performance according to claim 1, characterized by, The conductive terminal further comprises a holding part, one end of the holding part is fixedly connected to the base, the holding part is arranged along a second direction toward the insulating body, a fixing slot is formed in the mounting slot along the second direction, and the holding part is configured to fix the force arm in the fixing slot.

7. The connector with high frequency performance according to claim 6, characterized by, An inclined limiting slot is formed in the inner wall of the fixing slot, an inclined limiting block is arranged on the bottom surface of the holding part toward the solder leg, the limiting block can be elastically deformed to move close to the bottom surface of the holding part, the limiting slot and the limiting block are engaged, the holding part is inserted into the fixing slot until the limiting block rebounds above the limiting slot to fix the holding part in the fixing slot, thereby realizing fixation of the conductive terminal in the mounting slot.

8. The connector with high frequency performance according to claim 7, characterized by, First and second limiting surfaces are arranged on both sides of the opening of the fixing slot along the vertical direction, the first and second limiting surfaces are located on the same vertical plane, when the limiting block enters the limiting slot, the first limiting surface abuts against one side of the base, and the second limiting surface abuts against the first end of the solder leg to limit the conductive terminal in the mounting slot along the second direction.

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