Socket connector

Abstract

The invention provides a socket connector which comprises a butt joint tongue plate and a metal shell arranged outside the butt joint tongue plate in a surrounding mode, and the butt joint tongue plate comprises an insulation body and a terminal assembly fixed in the insulation body; the shielding piece is fixed in the insulating body; the shielding piece comprises a first shielding part, a first connecting part and a second shielding part, the first shielding part is arranged on one side of the terminal assembly in the width direction, and the first shielding part extends in the thickness direction of the terminal assembly; the first connecting part is formed by bending and extending the rear end of the first shielding part in the length direction to one side of the terminal assembly in the thickness direction, and the rear end of the first connecting part in the length direction of the terminal assembly extends along the width direction of the terminal assembly to form a second shielding part; the first connecting part is in lap joint with a grounding terminal in the terminal assembly, and the first shielding part and the second shielding part are respectively provided with an electric connecting surface exposed out of the insulating body. According to the socket connector provided by the invention, multi-dimensional collaborative electromagnetic shielding can be realized, and the anti-interference capability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a socket connector. Background Art

[0002] With the increasing popularity of high-speed protocols such as USB4 v2.0 (80Gbps) and Thunderbolt 4 / 5 (120Gbps), the signal frequency of the Type-C connector has entered the millimeter wave range (20GHz+). High-frequency signals are highly susceptible to electromagnetic interference (EMI), which can affect the integrity of the signal transmitted by the connector. Furthermore, modern smart devices (such as ultra-thin notebooks, foldable phones, and AR / VR devices) have compact internal space. The Type-C port is often located adjacent to high-radiation modules such as 5G / Wi-Fi 6E antennas, high-speed memory, and GPUs, further exacerbating EMI issues.

[0003] However, the current Type-C socket connector generally performs electromagnetic shielding by setting an end plate between the upper terminal assembly and the lower terminal assembly. However, this structure cannot meet the electromagnetic shielding requirements of the Type-C socket connector under high-speed, high-power, and high-density electronic devices. Summary of the Invention

[0004] Therefore, in order to overcome the above problems, the present invention provides a socket connector having a shielding member capable of multi-dimensional coordinated electromagnetic shielding, high signal transmission integrity and strong anti-interference capability.

[0005] The socket connector provided by the present invention includes a docking tongue and a metal shell surrounding the docking tongue, wherein the docking tongue includes an insulating body and a terminal assembly fixed in the insulating body; and further includes:

[0006] The shielding member is fixed in the insulating body; the shielding member includes a first shielding portion, a first connecting portion, and a second shielding portion, the first shielding portion is arranged on one side in the width direction of the terminal assembly, and the first shielding portion extends in the thickness direction of the terminal assembly; the first connecting portion is formed by bending the rear end of the first shielding portion in the length direction to extend to one side in the thickness direction of the terminal assembly, and the rear end of the first connecting portion in the length direction of the terminal assembly extends along the width direction of the terminal assembly to form the second shielding portion;

[0007] The first connecting portion is overlapped with the ground terminal in the terminal assembly, and the first shielding portion and the second shielding portion both have electrical connection surfaces exposed outside the insulating body.

[0008] Optionally, the insulating body includes a docking tongue portion, and the docking tongue portion includes a tongue plate portion and a tongue root portion sequentially arranged along the length direction, the first shielding portion is located in the tongue plate portion, and the second shielding portion is located in the tongue root portion;

[0009] The first connecting portion includes a lap portion located in the tongue portion, and a bent connecting portion connecting the lap portion and the second shielding portion, wherein the lap portion is lapped with the ground terminal.

[0010] Optionally, a lap groove corresponding to the lap portion is provided on the grounding terminal. When the lap portion is placed in the lap groove, the outer side surface of the lap portion and the electrical contact surface of the grounding terminal are in the same plane, and the outer side surface of the lap portion is exposed outside the insulating body.

[0011] Optionally, the first shielding portion and the terminal assembly are spaced apart in the width direction, and the first shielding portion is provided with at least one first reinforcing arm that is bent and extended toward the terminal assembly.

[0012] Optionally, the shielding member also includes a second connecting portion and a third shielding portion, the second connecting portion is formed by extending a portion of the end surface of the rear end of the second shielding portion in the length direction, the third shielding portion is formed by extending the second connecting portion, and the third shielding portion extends in the width direction; the third shielding portion has a connecting surface exposed outside the base of the insulating body, and the third shielding portion is fixedly connected to the metal shell through the connecting surface.

[0013] Optionally, the insulating body includes a first insulating part and a second insulating part, the first insulating part fixes the terminal assembly inside; the first insulating part is provided with an interlocking groove corresponding to the second connecting part, and the shielding part is fixed to the first insulating part through the second connecting part and the interlocking groove; the second insulating part fixes the terminal assembly, the first insulating part and the shielding part inside.

[0014] Optionally, the second connecting portion is provided with at least one fastening tooth protruding in the width direction.

[0015] Optionally, the third shielding portion is spaced apart from the terminal assembly in the thickness direction, and the third shielding portion is provided with at least one second reinforcing arm that is bent and extended toward the terminal assembly.

[0016] Optionally, the front end of the first shielding portion in the length direction is bent to form a first locking portion protruding in a direction away from the terminal assembly.

[0017] Optionally, the terminal assembly includes a first terminal assembly and a second terminal assembly, and the first terminal assembly and the second terminal assembly are arranged along the thickness direction; a middle plate is arranged between the first terminal assembly and the second terminal assembly, and the middle plate is located on one side in the width direction; a second locking portion protruding outside the first terminal assembly and the second terminal assembly is provided at the front end of the middle plate in the length direction, and the first locking portion is abutted against the second locking portion.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. The socket connector provided by the present invention can perform lateral electric field shielding by providing a shielding member including a first shielding portion located on one side in the width direction of the terminal assembly and extending in the thickness direction of the terminal assembly. By providing the shielding member also including a second shielding portion located on one side in the thickness direction of the terminal assembly and extending along the width direction of the terminal assembly, circumferential electric field shielding can be performed. By providing a first connecting portion connecting the first shielding portion and the second shielding portion to overlap with the grounding terminal, reliable grounding is achieved, an additional low-impedance noise discharge path is provided, signal backflow can be improved, and common-mode noise can be reduced. At the same time, by providing the first shielding portion and the second shielding portion with electrical contact surfaces exposed outside the insulating body, when the socket electrical connector is electrically connected to the plug, the shielding member can form a continuous conductive interface with the metal shell of the plug to avoid leakage caused by shielding gaps. Finally, multi-dimensional coordinated electromagnetic shielding is achieved, ensuring that the socket connector has high signal transmission integrity and anti-interference capability.

[0020] Moreover, the shielding component is an integrally formed component, which is easy to produce and assemble.

[0021] 2. The socket connector provided by the present invention increases the shielding contacts between the socket connector and the mating plug connector by setting the outer side surface of the overlapping portion in the first connecting portion to be exposed to the insulating body, which can further improve the electromagnetic shielding effect of the socket connector.

[0022] 3. The socket connector provided by the present invention, by providing a shielding member that also includes a third shielding portion connected to the metal shell, forms a continuous conductive interface between the metal shell of the socket connector, the metal shell of the docking plug connector and the shielding member, thereby further improving the electromagnetic shielding effect of the socket connector.

[0023] 4. The socket connector provided by the present invention can improve the structural strength of the first locking portion and increase the service life of the socket connector by arranging the first locking portion on the first shielding portion to counteract the second locking portion on the middle plate; and the shielding plate is connected to the middle plate to form a closed shielding loop, further improving the electromagnetic shielding effectiveness of the socket electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a socket connector provided in an embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of a docking tongue and a shielding member in a socket connector provided by an embodiment of the present invention;

[0027] Figure 3 and Figure 4 A schematic diagram of the positional structural relationship between a shielding member and a terminal assembly in a receptacle connector provided by an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the specific structure of a shielding element provided by an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the specific structure of an insulating body provided by an embodiment of the present invention;

[0030] Description of reference numerals:

[0031] 100-butt tongue plate;

[0032] 110 - insulation body; 110a - tongue plate; 110b - tongue root; 110c - base; 111 - first insulation member; 111a - fitting groove; 112 - second insulation member;

[0033] 120-terminal assembly; 120a-first terminal assembly; 120b-second terminal assembly; 121-ground terminal; 121a-lap slot;

[0034] 130-middle plate; 131-second locking portion;

[0035] 200-metal housing;

[0036] 300-shielding parts;

[0037] 310 - first shielding portion; 311 - first reinforcing arm; 312 - first locking portion;

[0038] 320-first connecting portion; 321-lap joint; 322-bend connecting portion;

[0039] 330- second shielding portion;

[0040] 340 - second connecting portion; 341 - fastening tooth;

[0041] 350 - third shielding portion; 351 - second reinforcing arm;

[0042] 400-connection shell;

[0043] 500-Seal ring. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Furthermore, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments (i.e., those features not relevant to the best mode currently considered for carrying out the invention, or those features not relevant to implementing the invention) may be described. Furthermore, the technical features involved in the different embodiments of the invention described below may be combined with one another as long as they do not conflict with one another.

[0049] Please refer to Figures 1-6 , is a structural schematic diagram of a socket connector provided in an embodiment of the present invention. The socket connector is used in an electronic device to connect to a corresponding plug connector to transmit data between the electronic device and other devices, or to replenish the power of the electronic device.

[0050] Please refer to Figures 1-6 The socket connector includes a docking tongue 100 and a metal shell 200 surrounding the docking tongue 100 . The docking tongue 100 includes an insulating body 110 and a terminal assembly 120 fixed in the insulating body 110 .

[0051] In this embodiment, Figure 1 As shown, a connecting shell 400 may also be provided on the metal shell 200. The connecting shell 400 has connecting ears extending outside the metal shell 200 on both sides of the metal shell 200; the connecting ears are used to be fixedly connected to the circuit board corresponding to the socket connector in this embodiment.

[0052] In this embodiment, Figure 1 As shown, a sealing ring 500 may be provided at the front end of the metal shell 200 in the plugging direction, and the sealing ring 500 is sleeved on the metal shell 200 .

[0053] Here, the directions in this embodiment are explained. The front end in the plugging direction refers to the end that is reached first along the plugging direction (that is, the end closer to the plugging opening of the metal shell 200). Correspondingly, the rear end in the plugging direction refers to the end that is reached later along the plugging direction; the length direction refers to the direction that is the same as the plugging direction (that is, the end that is closer to the plugging opening of the metal shell 200). Figure 1 The width direction refers to the arrangement of the conductive terminals in the terminal assembly 120 in the opposite direction (ie Figure 1 The thickness direction refers to the relative arrangement direction between the first terminal assembly 120a and the second terminal assembly 120b in the terminal assembly 120 (ie, Figure 1 Z-axis direction shown in ).

[0054] In this embodiment, Figure 2 As shown, the insulating body 110 includes a docking tongue and a base 110c arranged in sequence in the plug-in direction, wherein a docking cavity is formed between the docking tongue and the metal shell 200, and the base 110c is against the interior of the metal shell 200; the docking tongue includes a tongue plate portion 110a and a tongue root portion 110b arranged in sequence along the length direction.

[0055] In this embodiment, Figure 3 As shown, the terminal assembly 120 can be configured to include a first terminal assembly 120a and a second terminal assembly 120b, and the first terminal assembly 120a and the second terminal assembly 120b are arranged along the thickness direction; two middle plates 130 can also be arranged between the first terminal assembly 120a and the second terminal assembly 120b, and the two middle plates 130 are respectively located on both sides of the first terminal assembly 120a in the width direction; the middle plates 130 can realize signal isolation between the first terminal assembly 120a and the second terminal assembly 120b.

[0056] Please refer to Figure 1-Figure 5 The socket connector further includes a shielding member 300 , which is also fixed in the insulating body 110 .

[0057] Please refer to Figure 2-Figure 5The shield 300 includes a first shielding portion 310, a first connecting portion 320, and a second shielding portion 330. The first shielding portion 310 is disposed on one side of the terminal assembly 120 in the width direction and extends in the thickness direction of the terminal assembly 120. The first connecting portion 320 is formed by bending the rear end of the first shielding portion 310 in the length direction and extending to one side of the terminal assembly 120 in the thickness direction. The rear end of the first connecting portion 320 in the length direction of the terminal assembly 120 extends along the width direction of the terminal assembly 120 to form the second shielding portion 330. The first connecting portion 320 overlaps the ground terminal 121 in the terminal assembly 120. Both the first shielding portion 310 and the second shielding portion 330 have electrical contact surfaces exposed outside the insulating body 110.

[0058] Those skilled in the art will appreciate that there are two shielding members 300. Since both shielding members 300 have identical structures, only one of them will be described in this embodiment for ease of description. The first shielding portions 310 of the two shielding members 300 are disposed on either side of the terminal assembly 120 in the width direction, and the second shielding portions 330 of the two shielding members 300 are disposed on either side of the terminal assembly 120 in the thickness direction.

[0059] In a specific implementation, the first shielding portion 310 can be located within the tongue portion 110a, and the second shielding portion 330 can be located within the tongue base portion 110b. The first connecting portion 320 includes a lap portion 321 located within the tongue portion 110a, and a bent connecting portion 322 connecting the lap portion 321 and the second shielding portion 330. The lap portion 321 overlaps the ground terminal 121. The portion of the shielding member 300 other than the lap portion 321 is spaced apart from the terminal assembly 120. That is, the first shielding portion 310 is spaced apart from the terminal assembly 120 in the width direction, and the second shielding portion 330 is spaced apart from the terminal assembly 120 in the thickness direction.

[0060] In specific implementation, in order to increase the shielding contacts on the socket connector in this embodiment, such as Figure 4 As described above, the ground terminal 121 may be provided with a lap groove 121a corresponding to the lap portion 321. When the lap portion 321 is placed in the lap groove 121a, the outer side surface of the lap portion 321 and the electrical contact surface of the ground terminal 121 are in the same plane. Figure 2 As shown, the outer side surface of the overlapping portion 321 is exposed outside the insulating body 110 .

[0061] Those skilled in the art should understand that the “grounding terminal 121 ” here refers to the grounded conductive terminal in the terminal assembly 120 that overlaps with the overlapping portion 321 , but this does not affect the presence of other grounded conductive terminals in the terminal assembly 120 .

[0062] In a specific implementation, in order to improve the holding strength of the insulating body 110 for the shielding member 300, as shown in FIG. Figure 4 and Figure 5 As shown, the first shielding portion 310 may be provided with at least one first reinforcing arm 311 that is bent and extended toward the terminal assembly 120 .

[0063] In specific implementation, in order to increase the plugging and unplugging contact surface of the socket connector in this embodiment and improve its service life, as shown in FIG. Figure 3-Figure 5 As shown, the front end of the first shielding portion 310 in the longitudinal direction can be bent to form a first locking portion 312 that protrudes in a direction away from the terminal assembly 120. Because the first shielding portion 310 extends in the thickness direction, the plug-in contact surface of the plug-in portion (i.e., the first locking portion 312) provided on the first shielding portion 310 is larger than the plug-in contact surface of the plug-in portion provided on the midplane 130 in the prior art.

[0064] In a specific implementation, in order to improve the structural strength of the first locking portion 312 and further improve the service life of the socket connector in this embodiment, as shown in FIG. Figure 3 As shown, the front end of the middle plate 130 in the longitudinal direction can be provided with a second locking portion 131 protruding from the first terminal assembly 120a and the second terminal assembly 120b, and the first locking portion 312 abuts against the second locking portion 131. In this case, the shielding member 300 is connected to the middle plate 130 to form a closed shielding loop, which can further improve the electromagnetic shielding effectiveness of the electrical connection of the socket in this embodiment.

[0065] Please refer to Figure 2-Figure 5 As an optional implementation of this embodiment, the shielding member 300 may further include a second connecting portion 340 and a third shielding portion 350. The second connecting portion 340 is formed by extending a portion of the end surface of the rear end of the second shielding portion 330 in the longitudinal direction, and the third shielding portion 350 is formed by extending the second connecting portion 340 and extending in the width direction. The third shielding portion 350 has a connecting surface exposed outside the base portion 110c of the insulating body 110, and the third shielding portion 350 is fixedly connected to the metal housing 200 via the connecting surface. This creates a continuous conductive interface between the metal housing 200 of the receptacle connector, the metal shell of the mating plug connector, and the shielding member 300 in this embodiment, further enhancing the electromagnetic shielding effectiveness of the receptacle connector.

[0066] In a specific implementation, the connection surface may be a welding surface, and the third shielding portion 350 is fixed to the metal shell 200 by welding.

[0067] In a specific implementation, in order to further improve the holding strength of the insulating body 110 for the shielding member 300, as shown in FIG. Figure 3-Figure 5As shown, the third shielding portion 350 may be provided with at least one second reinforcing arm 351 that is bent and extended toward the terminal assembly 120 .

[0068] As an optional implementation of this embodiment, Figure 6 As shown, the insulating body 110 in this embodiment can include a first insulating member 111 and a second insulating member 112. The first insulating member 111 secures the terminal assembly 120 therein, and is provided with an engaging groove 111a corresponding to the second connecting portion 340. The shielding member 300 is secured to the first insulating member 111 via the second connecting portion 340 and the engaging groove 111a. The second insulating member 112 secures the terminal assembly 120, the first insulating member 111, and the shielding member 300 therein. That is, the insulating body 110 in this embodiment can be obtained by two injection molding processes.

[0069] When implementing it specifically, Figure 5 As shown, the second connecting portion 340 may be provided with at least one fastening tooth 341 protruding in the width direction. Figure 5 As shown, two or more second connection parts 340 may be provided, and the two or more second connection parts 340 may be arranged at intervals.

[0070] The socket connector in this embodiment can perform lateral electric field shielding by providing the shielding member 300 including a first shielding portion 310 located on one side in the width direction of the terminal assembly 120 and extending in the thickness direction of the terminal assembly 120. It can also perform circumferential electric field shielding by providing the shielding member 300 also including a second shielding portion 330 located on one side in the thickness direction of the terminal assembly 120 and extending along the width direction of the terminal assembly 120. A first connecting portion 320 connecting the first shielding portion 310 and the second shielding portion 330 is provided to overlap with the ground terminal 121, thereby achieving reliable Grounding provides an additional low-impedance noise discharge path, which can improve signal return and reduce common-mode noise; at the same time, by arranging that the first shielding part 310 and the second shielding part 330 both have electrical contact surfaces exposed outside the insulating body 110, it also enables the shielding part 300 to form a continuous conductive interface with the metal shell of the plug when the socket electrical connector is electrically connected to the plug, thereby avoiding leakage caused by shielding gaps; ultimately, multi-dimensional coordinated electromagnetic shielding is achieved, ensuring that the socket connector has high signal transmission integrity and anti-interference capability; and the shielding part 300 is an integrally molded part, which is easy to produce and assemble.

[0071] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A socket connector comprising a mating tongue and a metal shell surrounding the mating tongue, wherein the mating tongue comprises an insulating body and a terminal assembly fixed in the insulating body; characterized in that: Also includes: A shielding member fixed in the insulating body; the shielding member includes a first shielding portion, a first connecting portion, and a second shielding portion, wherein the first shielding portion is arranged on one side in the width direction of the terminal assembly and extends in the thickness direction of the terminal assembly; the first connecting portion is formed by bending the first shielding portion at the rear end in the length direction and extending to one side in the thickness direction of the terminal assembly, and the first connecting portion extends at the rear end in the length direction of the terminal assembly along the width direction of the terminal assembly to form the second shielding portion; The first connecting portion is overlapped with the ground terminal in the terminal assembly, and the first shielding portion and the second shielding portion both have an electrical connection surface exposed outside the insulating body.

2. The socket connector according to claim 1, wherein: The insulating body includes a docking tongue portion, and the docking tongue portion includes a tongue plate portion and a tongue root portion sequentially arranged along the length direction, the first shielding portion is located in the tongue plate portion, and the second shielding portion is located in the tongue root portion; The first connecting portion includes a lap portion located in the tongue portion and a bent connecting portion connecting the lap portion and the second shielding portion, and the lap portion is lapped with the ground terminal.

3. The socket connector according to claim 2, wherein: The grounding terminal is provided with a lap groove corresponding to the lap portion. When the lap portion is placed in the lap groove, the outer side surface of the lap portion and the electrical contact surface of the grounding terminal are in the same plane, and the outer side surface of the lap portion is exposed outside the insulating body.

4. The socket connector according to claim 1, wherein: The first shielding portion and the terminal assembly are spaced apart in the width direction, and the first shielding portion is provided with at least one first reinforcing arm that is bent and extended toward the terminal assembly.

5. The socket connector according to any one of claims 1 to 4, characterized in that: The shielding member also includes a second connecting portion and a third shielding portion, the second connecting portion is formed by extending a portion of the end surface of the rear end of the second shielding portion in the length direction, the third shielding portion is formed by extending the second connecting portion, and the third shielding portion extends in the width direction; the third shielding portion has a connecting surface exposed outside the base of the insulating body, and the third shielding portion is fixedly connected to the metal shell through the connecting surface.

6. The socket connector according to claim 5, wherein: The insulating body includes a first insulating part and a second insulating part, the first insulating part fixes the terminal assembly inside; the first insulating part is provided with an interlocking groove corresponding to the second connecting part, and the shielding part is fixed to the first insulating part through the second connecting part and the interlocking groove; the second insulating part fixes the terminal assembly, the first insulating part and the shielding part inside.

7. The socket connector according to claim 6, wherein: The second connecting portion is provided with at least one fastening tooth protruding in the width direction.

8. The socket connector according to claim 6, wherein: The third shielding portion is spaced apart from the terminal assembly in the thickness direction, and the third shielding portion is provided with at least one second reinforcing arm that is bent and extends toward the terminal assembly.

9. The socket connector according to any one of claims 1 to 8, wherein: The front end of the first shielding portion in the length direction is bent to form a first locking portion that protrudes in a direction away from the terminal assembly.

10. The socket connector according to claim 9, wherein: The terminal assembly includes a first terminal assembly and a second terminal assembly, and the first terminal assembly and the second terminal assembly are arranged along the thickness direction; a middle plate is arranged between the first terminal assembly and the second terminal assembly, and the middle plate is located on one side in the width direction; the middle plate is provided with a second locking portion protruding outside the first terminal assembly and the second terminal assembly at the front end in the length direction, and the first locking portion is abutted against the second locking portion.

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