Socket connector and connector combination

Abstract

The invention discloses a socket connector and a connector combination, and relates to the technical field of electronic connectors, and the socket connector comprises a metal shell, a sliding assembly, a conductive module and a metal cover. A sliding block of the sliding assembly is matched with the metal shell to form a first insertion cavity and a second insertion cavity which can be converted; the conductive module comprises an insulating body and a terminal module; the metal cover is sleeved outside the metal shell; the metal cover is provided with a limiting structure, the sliding block is provided with a matching structure matched with the limiting structure, and in the locking matching state, the limiting structure is matched with the matching structure to limit the sliding block to move relative to the metal shell; in the releasing state, the limiting structure is separated from the matching structure, and the sliding block can move relative to the metal shell. According to the technical scheme provided by the invention, the internal space is saved through the metal cover, and the development trend of miniaturization and integration of electronic equipment is met. Meanwhile, the metal cover can also improve the structural strength of the metal shell, enhance the reliability of equipment and improve the product quality.

Description

Technical Field

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

[0002] With the prevalence of multi-protocol interfaces (such as DisplayPort / HDMI) in electronic devices, switchable sockets are becoming a mainstream solution, as they can accommodate multiple interface types (such as small-size HDMI and large-size DisplayPort) through a single structure, improving space utilization. Their core design typically involves a movable slider within a metal shell, which cooperates to form a convertible plug-in cavity (e.g., when HDMI is inserted, the slider is fixed to form a small cavity, while when DisplayPort is inserted, the slider moves inward to expand the cavity). These connectors share a common set of conductive terminals, achieving dual-interface compatibility and significantly enhancing flexibility.

[0003] However, this type of switchable socket is prone to mislocking under high-frequency switching or external force impact, such as the slider moving unexpectedly when HDMI is inserted, affecting the stability of the interface docking. Summary of the Invention

[0004] The main purpose of the present invention is to propose a socket connector and a connector combination, which aims to address the above-mentioned defects by utilizing the limiting structure on the metal cover and the matching structure of the slider to form a selective locking mechanism (limiting the movement of the slider when locked and allowing the slider to move when unlocked), thereby enhancing the reliability of the equipment and improving product quality.

[0005] To achieve the above-mentioned object, the socket connector proposed in the present invention includes: Metal shell; a sliding assembly comprising a slider movably disposed in the metal shell, wherein the slider cooperates with the metal shell to form a convertible first insertion cavity and a second insertion cavity, wherein the second insertion cavity is configured as a part of the first insertion cavity; a conductive module disposed in the second plug-in cavity, the conductive module comprising an insulating body and a terminal module coupled to the insulating body, the terminal module being used to connect to a counterpart connector; and a metal cover, sleeved on the outside of the metal shell; the metal cover has a limiting structure, and the slider is provided with a matching structure that matches the limiting structure; wherein the limiting structure can selectively put the matching structure into a locked matching state or a disengaged and released state; In the locked engagement state, the limiting structure cooperates with the matching structure to limit the movement of the slider relative to the metal shell; In the disengaged and released state, the limiting structure and the matching structure are disengaged from each other, and the slider can move relative to the metal shell.

[0006] In one embodiment, the limiting structure is a third spring piece provided on the metal cover, a third notch is provided on the top wall of the metal shell to avoid the third spring piece, and the third spring piece is provided with a third contact portion and a third blocking portion extending into the metal shell; the matching structure is a second limiting portion provided on the slider, and the second limiting portion cooperates with the third blocking portion, wherein the third blocking portion is in a locked matching state when it abuts against the second limiting portion; the third spring piece is pushed to deform by the third contact portion, so that the third blocking portion is separated from the second limiting portion and enters a disengaged and released state.

[0007] In one embodiment, the sliding assembly further includes an elastic member, which is disposed between the slider and the insulating body and is used to provide a restoring force after the slider moves.

[0008] In one embodiment, a guide structure is provided between the slider and the inner wall of the metal shell, or a guide structure is provided between the slider and the insulating body, for limiting the moving direction of the slider.

[0009] In one embodiment, the slider includes a sliding body and an anti-fool-proofing protrusion provided on the sliding body, and the anti-fool-proofing protrusion is used to prevent a matching counterpart connector from being reversely inserted into the second plug-in cavity.

[0010] In one embodiment, the top wall of the metal shell is provided with a first notch and a first spring piece built into the first notch, the first spring piece includes a first contact portion and a first blocking portion both extending into the metal shell, wherein, when a matching opponent connector is inserted into the second plug-in cavity, the opponent connector touches the first contact portion to drive the first spring piece away from the second plug-in cavity; when reversely inserted, the first blocking portion resists the opponent connector, and the first contact portion has no effect.

[0011] In one embodiment, the bottom wall of the metal shell is provided with a second notch and a second elastic sheet built into the second notch, the second elastic sheet has a second contact portion and a second blocking portion extending into the metal shell; the slider is provided with a first limiting portion cooperating with the second blocking portion, wherein, when the matching opponent connector is inserted into the first plug-in cavity, the opponent connector pushes the second contact portion, driving the second elastic sheet away from the first plug-in cavity, so that the first limiting portion is separated from the second blocking portion; when reversely inserted, the second contact portion does not work, and the first limiting portion abuts against the second blocking portion.

[0012] In one embodiment, the terminal module includes a plurality of main signal terminal groups, each of the main signal terminal groups includes a ground connector and two signal connectors, the ground connector includes a ground connector portion for docking with a counterpart connector, two ground connector portions for connecting with a circuit board, and a ground fixing portion connecting the two ground connector portions and the ground connector portions; each of the signal connectors includes a signal connector portion for docking with a counterpart connector, a signal connector portion for connecting with a circuit board, and a signal fixing portion connecting the signal connector portion and the signal connector portion; The two signal connection portions in the same main signal terminal group are located between the two ground connection portions, and the ground connection portions in adjacent main signal terminal groups are adjacent to each other.

[0013] In one embodiment, the signal docking portion includes a signal docking section; the ground docking portion includes a ground docking section; the terminal module has a first position and a second position at a height perpendicular to the plugging direction; wherein, in the same main signal terminal group: The signal docking section is located at the first position, and the ground docking section is located at the second position; or the signal docking section is located at the second position, and the ground docking section is located at the first position.

[0014] In one embodiment, the signal docking sections in two adjacent main signal end groups are located at different positions: when the signal docking section of one main signal end group is at a first position, the signal docking section of the other adjacent main signal end group is at a second position.

[0015] In one embodiment, the signal docking portion includes a signal terminal provided in the signal docking section, and the two ends of the signal docking section are respectively connected to the signal fixing portion and the signal terminal; the grounding docking portion includes a grounding terminal provided in the grounding docking section, and the two ends of the grounding docking section are respectively connected to the grounding fixing portion and the grounding terminal; wherein, in the same main signal terminal group: the grounding terminal extends between the two signal terminals.

[0016] In one embodiment, the terminal module and the insulating body are injection molded as one piece, the signal docking portion and the signal connecting portion are both bent together with the signal fixing portion, the grounding docking portion and the grounding connecting portion are both bent together with the grounding fixing portion, and the signal fixing portion and the grounding fixing portion are at least partially exposed on the surface of the insulating body.

[0017] In one embodiment, the terminal module also includes an identification end group, and the metal shell is further provided with a detection spring, the detection spring has a first bent portion and a second bent portion, the first bent portion is in contact with the identification end group, and the slider has a pushing portion, wherein the matching opponent connector is inserted into the first plug-in cavity and pushes the slider, so that the pushing portion pushes the second bent portion, driving the first bent portion to separate from the identification end group.

[0018] The present invention also provides a connector combination, comprising the socket connector described above, a first plug connector and a second plug connector, wherein the first plug connector is adapted to the first plug-in cavity, and the second plug connector is adapted to the second plug-in cavity.

[0019] The technical solution of the present invention forms a lock by connecting the metal cover's limiting structure (such as an elastic member or rigid boss) with the slider's mating structure (such as a limiting protrusion / slot). When locked, the limiting structure and the mating structure directly abut or engage with each other, significantly enhancing the ability to restrict the slider's movement (for example, when an HDMI is inserted, the slider is stably locked, preventing accidental displacement due to external impact or vibration). This effectively solves the problem of "slider mis-locking" in existing switchable sockets. Traditional solutions require an additional lever or complex mechanical structure to drive the slider to unlock, which is inconvenient and costly. In this solution, the limiting structure's "disengaged release state" can be achieved by directly applying an external force to the limiting structure (such as pushing the contact portion of the elastic member to deform it) or the slider (such as driving the slider to overcome the resistance of the rigid boss). This eliminates the need for additional driving components, simplifies the unlocking operation path (for example, when a DP is inserted, simply pushing the slider triggers the limiting structure to disengage), and reduces assembly complexity and user operation difficulty. This solution integrates the limiting structure into the metal cover, allowing it to simultaneously provide structural strength and position limiting. This not only saves internal space (no additional complex limiting structure required within the metal shell), but also improves the overall compactness of the design through external structural optimization, aligning with the trend toward miniaturization and integration of electronic devices. Furthermore, the metal cover enhances the structural strength of the metal shell, enhancing device reliability and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a socket connector provided by the present invention; Figure 2 for Figure 1 Exploded view in ; Figure 3 A schematic structural diagram of another embodiment of the socket connector provided by the present invention; Figure 4 for Figure 3 Exploded view in ; Figure 5 A schematic structural diagram of an embodiment of a terminal module provided by the present invention; Figure 6 A schematic diagram of the exploded structure of the terminal module provided by the present invention; Figure 7 A schematic structural diagram of an embodiment of a metal shell provided by the present invention; Figure 8 A schematic structural diagram of an embodiment of a conductive module provided by the present invention; Figure 9 is a structural diagram of an embodiment of a second plug connector and a socket connector; Figure 10 is a schematic cross-sectional structural diagram of the second plug connector after being inserted into the second plug cavity; Figure 11 It is a structural schematic diagram of the second plug connector when it is reversely inserted into the second plug cavity; Figure 12 It is a structural schematic diagram of an embodiment of a first plug connector and a socket connector; Figure 13 This is a schematic cross-sectional structural diagram of the first plug connector after being inserted into the first plug cavity.

[0022] Description of Figure Numbers: 10. Metal shell; 10a. First plug-in cavity; 10b. Second plug-in cavity; 10c. Inclined transition section; 11a, first notch; 11b, first spring piece; 11b1, first contact portion; 11b2, first blocking portion; 12a, second notch; 12b, second spring piece; 12b1, second contact portion; 12b2, second blocking portion; 13a, third notch; 14, detection spring piece; 14a, first curved portion; 14b, second curved portion; 20. Sliding assembly; 21. Sliding block; 21a. Sliding body; 21b. Anti-fouling protrusion; 22. Elastic member; 23. First limiting portion; 24. Second limiting portion; 25. Pushing portion; 26. Matching structure; 30. Conductive module; 40. Insulation body; 50. Terminal module; 51. Main signal terminal group; 51a. First signal terminal group; 51b. Second signal terminal group; 51c. Third signal terminal group; 51d. Fourth signal terminal group; 51e. Fifth signal terminal group; 511. Ground connector; 511a. Ground docking portion; 1a1. Ground docking section; 1a2. Ground terminal; 511b. Ground fixing portion; 511c. Ground connecting portion; 512. Signal connector; 512a. Signal docking portion; 2a1. Signal docking section; 2a2. Signal terminal; 512b. Signal fixing portion; 512c. Signal connecting portion; 52. Auxiliary signal terminal group; 53. Identification terminal group; 531. Identification terminal; 60. Circuit board; 70, metal cover; 70a, limiting structure; 71, third spring; 71a, third contact portion; 71b, third blocking portion; H1, first position; H2, second position; T, guide structure; T1, first guide block portion; T2, first guide groove portion; T3, second guide block portion; T4, second guide groove portion; 200, first plug connector; 300, second plug connector.

[0023] The purpose, features and advantages of the present invention will be achieved by combining For example, further explanation will be given with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] Traditional single-interface sockets require frequent device replacement. With the popularization of multi-protocol interfaces (such as DP / HDMI) in electronic devices, switchable sockets have become the mainstream solution due to their space efficiency advantages.

[0028] Existing solutions, such as Chinese patent publication number CN103474832A (publication date: December 25, 2013), use a movable slider structure within a metal shell to separate a small space suitable for HDMI or a large space suitable for DP using the slider and the metal shell, and share a set of docking terminals to achieve dual-interface compatibility. That is, the internal space size is changed by the displacement of the slider (a small space is formed when HDMI is inserted, and the slider moves inward to expand to a large space when DP is inserted), significantly improving the flexibility of use.

[0029] However, this type of switchable socket is prone to mislocking when the connector is switched or under external force impact, such as the slider moving unexpectedly when the HDMI is inserted, affecting the stability of the interface docking.

[0030] Because the slider must move to accommodate different interfaces (it's fixed to create a small space when HDMI is inserted, and slides to create a larger space when DP is inserted), if the slider doesn't have a locking function, accidental movement during HDMI insertion could affect the stability of the interface. Existing solutions require complex mechanical structures (such as additional levers or buttons) to unlock the slider, increasing assembly difficulty and cost, and requiring additional force from the user, impacting the user experience. Because unlocking the slider requires manual control, users less familiar with electrical appliances may not be able to use it, making it less intuitive.

[0031] In addition, the socket connector requires additional space and has low structural integration: the locking function of the slider is separated from the shielding function of the metal shell, and the metal shell only serves as a structural support, and the external space is not fully utilized to optimize functional integration.

[0032] To this end, the present invention proposes a socket connector, which adds a metal cover to the outside of the metal shell and integrates a limiting function. It improves the stability of the slider movement through the "lock-release" dual-state control, while improving the structural strength of the product, enhancing the reliability of the equipment and improving the product quality.

[0033] See also Figure 1 and Figure 4 In one embodiment of the present invention, the socket connector includes a metal shell 10, a sliding assembly 20, and a conductive module 30 (such as the docking terminal mentioned above).

[0034] The sliding component 20 is movably disposed in the metal shell 10, and cooperates with the metal shell 10 to form a convertible first plug-in cavity 10a and a second plug-in cavity 10b, and the second plug-in cavity 10b is configured as a part of the first plug-in cavity 10a; the sliding component 20 is movably disposed in the metal shell 10, and when the sliding component 20 is in the initial position, it and the metal shell 10 jointly define the second plug-in cavity 10b; when the sliding component 20 moves to the sliding position, its clearance space allows the interior of the metal shell 10 to expand to a first plug-in cavity 10a that is larger than the second plug-in cavity 10b.

[0035] The sliding assembly 20 is movably disposed in the metal shell 10, and cooperates with the metal shell 10 to form a convertible first plug-in cavity 10a and a second plug-in cavity 10b. The sliding assembly 20 includes a movable slider 21, which is disposed in the metal shell 10. In the initial position, the slider 21 is located in front of the metal shell 10, and a second plug-in cavity 10b is defined in the metal shell 10 for plugging in a smaller plug connector, such as HDMI (High Definition Multimedia Interface); when a larger plug connector is plugged in, such as DP (Display Port), the slider 21 moves toward the metal, and the slider 21 moves backward and exits, the second plug-in cavity 10b disappears and the first plug-in cavity 10a is fully expanded; the second plug-in cavity 10b is configured as a part of the first plug-in cavity 10a; the conductive module 30 is disposed in the second plug-in cavity 10b, and the DP and HDMI plugs can realize signal transmission through the shared conductive module 30.

[0036] Specifically, the metal cover 70 is sleeved on the outside of the metal shell 10; the metal cover 70 has a limiting structure 70a, and the sliding assembly 20 includes a slider 21, and the slider 21 is provided with a matching structure 26 that matches with the limiting structure 70a; wherein, the limiting structure 70a can selectively put the matching structure 26 into a locked matching state or a disengaged and released state; in the locked matching state, the limiting structure 70a cooperates with the matching structure 26 to limit the movement of the slider 21 relative to the metal shell 10; in the disengaged and released state, the limiting structure 70a and the matching structure 26 are disengaged from each other, and the slider 21 can move relative to the metal shell 10.

[0037] It should be noted that cooperation means restricting activities, while disengagement means allowing activities.

[0038] Specifically, the limiting structure 70a is engaged with the matching structure 26 to limit the position.

[0039] The technical solution of the present invention forms a lock by connecting the metal cover's limiting structure (such as an elastic member or rigid boss) with the slider's mating structure (such as a limiting protrusion / slot). When locked, the limiting structure and the mating structure directly abut or engage with each other, significantly enhancing the ability to restrict the slider's movement (for example, when an HDMI is inserted, the slider is stably locked, preventing accidental displacement due to external impact or vibration). This effectively solves the problem of "slider mis-locking" in existing switchable sockets. Traditional solutions require an additional lever or complex mechanical structure to drive the slider to unlock, which is inconvenient and costly. In this solution, the limiting structure's "disengaged release state" can be achieved by directly applying an external force to the limiting structure (such as pushing the contact portion of the elastic member to deform it) or the slider (such as driving the slider to overcome the resistance of the rigid boss). This eliminates the need for additional driving components, simplifies the unlocking operation path (for example, when a DP is inserted, simply pushing the slider triggers the limiting structure to disengage), and reduces assembly complexity and user operation difficulty. This solution integrates the limiting structure into the metal cover, allowing it to simultaneously provide structural strength and position limiting. This not only saves internal space (no additional complex limiting structure required within the metal shell), but also improves the overall compactness of the design through external structural optimization, aligning with the trend toward miniaturization and integration of electronic devices. Furthermore, the metal cover enhances the structural strength of the metal shell, enhancing device reliability and improving product quality.

[0040] Reference Figures 1 to 7 , taking the plug connectors DP and HDMI as an example, combined Figures 9 to 13 , wherein the first plug connector 200 is DP and the second plug connector 300 is HDMI.

[0041] Reference Figure 9 and Figure 10Under normal circumstances, the HDMI connector is inserted into the second insertion cavity 10b in the forward direction and connected to the conductive module 30. However, the user may insert the HDMI connector in reverse, that is, reverse the front and back of the HDMI connector. To prevent reverse insertion of the HDMI connector, the top wall of the metal shell 10 has a first notch 11a and a first spring plate 11b disposed within the first notch 11a. The first spring plate 11b includes a first contact portion 11b1 and a first blocking portion 11b2. Portions of the first contact portion 11b1 and the first blocking portion 11b2 are located within the second insertion cavity 10b. When the mating connector plugged into the second insertion cavity 10b is inserted forward, the mating connector abuts the first contact portion 11b1, driving the first spring plate 11b out of the second insertion cavity 10b to allow the mating connector to be inserted. When the mating connector plugged into the second insertion cavity 10b is inserted in reverse, the mating connector loses contact with the first contact portion 11b1, and the first blocking portion 11b2 blocks the insertion of the mating connector.

[0042] Reference Figures 1 to 4 The first spring piece 11b is integrally formed with the metal shell 10. The first spring piece 11b includes a connecting section and a first contact portion 11b1 and a first blocking portion 11b2 provided on the connecting section. The number of the first spring pieces 11b is not limited and can be one, two, three, or even more.

[0043] In addition, in order to avoid reverse insertion of the HDMI, the second plug-in cavity 10b is also provided with an anti-foolproof design to form an irregular cavity space in the second plug-in cavity 10b for user identification.

[0044] Reference Figure 2 and Figure 4 Specifically, the sliding assembly 20 includes a slider 21 and an elastic member 22. The elastic member 22 is provided between the insulating body 40 and the slider 21. The slider 21 includes a sliding body 21a and an anti-fool protrusion 21b provided on the sliding body 21a. The anti-fool protrusion 21b is used to prevent the opponent's connector from being reversely inserted into the second plug-in cavity 10b. Figure 11 Specifically, the anti-mock protrusion 21b is designed based on its shape, position, and orientation. It is tilted from the top toward the bottom wall of the metal shell, creating a different opening for the second insertion cavity 10b. This serves to alert the user and prevent human error (e.g., operator inexperience or inattention). If a rival connector (i.e., an HDMI plug) is attempted to be inserted into the second insertion cavity 10b in the reverse orientation (e.g., upside down), the anti-mock protrusion 21b will collide with the incorrect part of the connector (e.g., the edge of the connector or the protrusion), creating a rigid interference and preventing the connector from sliding further in.

[0045] The insulating body 40 has a sliding groove for the slider 21. To ensure more stable movement of the slider 21, in one embodiment, a guide structure T is provided on the side of the sliding body 21a facing away from the anti-fouling protrusion 21b. The guide structure T cooperates with the inner wall of the metal shell 10, such as a guide block and a guide groove. The guide block is provided on the sliding body 21a, and the metal shell 10 is provided with a guide groove. The guide block slides along the guide groove; of course, the reverse arrangement is also possible.

[0046] Specifically, a guide structure T is provided between the slider 21 and the metal shell 10 . The guide structure T includes a first guide block portion T1 and a first guide groove portion T2 , one of which is provided on the slider 21 and the other is provided on the metal shell 10 .

[0047] Specifically, the first guide shoe portion T1 is provided on the sliding body 21 a , and the first guide groove portion T2 is provided on the metal shell 10 .

[0048] In other embodiments, a guide structure T, such as a guide block and a guide groove, is provided between the sliding body 21 a and the insulating body 40 ; or the sliding body 21 a is sleeved on the insulating body 40 to form the guide structure T, etc.

[0049] Specifically, a guide structure T is provided between the slider 21 and the insulating body 40 . The guide structure T includes a second guide block portion T3 and a second guide groove portion T4 . One of the guide block and the second guide groove portion T4 is provided on the slider 21 , and the other is provided on the insulating body 40 .

[0050] The elastic member 22 is configured as a compression spring, but may also be a spring, leaf spring, or elastic rubber. Positioning structures, such as positioning grooves and / or positioning posts, are provided on the insulating body 40 and the sliding body 21a. Alternatively, the insulating body 40 and the sliding body 21a may form a mutually nested positioning cavity, with the elastic member 22 disposed within the cavity, which can also serve as the guide structure T.

[0051] Specifically, to stabilize the elastic member 22 , the insulating body 40 and the slider 21 cooperate to form a mounting cavity for mounting the elastic member 22 .

[0052] In order to allow users to identify the DP insertion port, the end surface of the slider 21 is at a certain distance from the cavity opening of the first insertion cavity 10a, so that the sizes of the cavity openings of the two insertion cavities can be visually distinguished.

[0053] Further, combined with Figure 7 And refer to Figure 12 and Figure 13To prevent users from inserting the DP connector backward, a sloped transition section 10c is located at the junction of the side and bottom walls of the metal shell 10. Due to the shape, position, and orientation of this sloped transition section 10c, which is tilted toward the bottom wall of the metal shell 10, the opening of the first insertion cavity 10a is shaped differently, thus alerting users and preventing human errors (such as operator inexperience or inattention). If a rival connector (i.e., a DP plug) is attempted to be inserted into the first insertion cavity 10a in the reverse direction (e.g., upside down), the sloped transition section 10c will collide with the incorrect part of the connector (e.g., the edge of the interface or a raised portion), creating a rigid interference and preventing further insertion.

[0054] Combined with reference Figure 11 Furthermore, in order to avoid oblique insertion of HDMI, a second notch 12a and a second elastic piece 12b placed in the second notch 12a are provided on the bottom wall of the metal shell 10. The second elastic piece 12b is provided with a second contact portion 12b1 and a second blocking portion 12b2 both extending into the second plug-in cavity 10b. The slider 21 is provided with a first limiting portion 23 that cooperates with the second blocking portion 12b2. When the matching opponent connector is inserted into the first plug-in cavity 10a, the opponent connector touches the second contact portion 12b1 to drive the second elastic piece 12b away from the second plug-in cavity 10b, the first limiting portion 23 disengages from the second blocking portion 12b2, and the opponent connector can push the slider 21 to move inward; when reversely inserted, the second contact portion 12b1 has no effect, and the first limiting portion 23 abuts against the second blocking portion 12b2 to limit the movement of the slider 21.

[0055] The second spring piece 12b is formed by partially separating the material of the metal shell 10. The second spring piece 12b includes a connecting section, a second contact portion 12b1 provided on the connecting section, and a second blocking portion 12b2. The slider 21 is provided with a first limiting portion 23 that cooperates with the second blocking portion 12b2. Specifically, the first limiting portion 23 is provided on the anti-mistake protrusion 21b; of course, the first limiting portion 23 can also be provided on the sliding body 21a. The first limiting portion 23 and the second blocking portion 12b2 can be a protrusion-protrusion abutment limit, or a protrusion-groove abutment limit. When the HDMI is inserted at an angle, the second spring piece 12b will not be forced to move downward. The first limiting portion 23 abuts the slider 21, which can prevent the terminal module 50 from being damaged by the HDMI insertion.

[0056] It should be noted that the first plug-in cavity 10a and the second plug-in cavity 10b have a corresponding counterpart connector. The first plug-in cavity 10a is larger than the second plug-in cavity 10b. When the corresponding counterpart connector is inserted / reversely into the first plug-in cavity 10a, the counterpart connector is a larger DP connector; similarly, when the corresponding counterpart connector is inserted / reversely into the second plug-in cavity 10b, the counterpart connector is a smaller HDMI connector.

[0057] Furthermore, in order to prevent the second elastic piece 12 b from being separated from the first plug-in cavity 10 a due to misoperation, the second elastic piece 12 b is rendered ineffective in limiting the slider 21 .

[0058] Reference Figures 1 to 4 The socket connector also includes a metal cover 70, which is sleeved on the outside of the metal shell 10. The metal cover 70 is provided with a third elastic piece 71, and the third elastic piece 71 is provided with a third contact portion 71a and a third blocking portion 71b. A third notch 13a is opened on the top wall of the metal shell 10, and the third contact portion 71a and the third blocking portion 71b extend into the first plug-in cavity 10a through the third notch 13a. The slider 21 is provided with a second limiting portion 24 that cooperates with the third blocking portion 71b. When the matching opponent connector is inserted into the first plug-in cavity 10a, the opponent connector pushes the third contact portion 71a, and the third contact portion 71a drives the third elastic piece 71 away from the first plug-in cavity 10a, so that the second limiting portion 24 is separated from the third blocking portion 71b, and the slider 21 can be pushed; when the opponent connector is reversely inserted: the third contact portion 71a does not work, the second limiting portion 24 abuts against the third blocking portion 71b, and the slider 21 is locked.

[0059] The third elastic piece 71 is formed after part of the material of the metal cover 70 itself is separated. Specifically, the second limiting portion 24 is set on the sliding body 21a; the second limiting portion 24 and the second blocking portion 12b2 can be a protrusion and a protrusion abutting and limiting, or a protrusion and a groove abutting and limiting.

[0060] In this way, when and only when the second spring piece 12b and the third spring piece 71 are separated from the slider 21 at the same time, DP can push the slider 21 to move, releasing to form a complete first plug-in cavity 10a, which can prevent the slider 21 from moving due to misoperation such as oblique insertion of HDMI, resulting in damage to the terminal module 50.

[0061] Reference Figure 2 、 Figure 4 and Figure 6 In order to identify the connection between the DP or HDMI plug and the socket, the terminal module 50 also includes an identification terminal group 53. The metal shell 10 is also provided with a detection spring 14. The detection spring 14 has a first bent portion 14a and a second bent portion 14b. The first bent portion 14a contacts the identification terminal group 53. The slider 21 has a pushing portion 25 that cooperates with the second bent portion 14b. When the matching opponent connector is inserted into the first plug-in cavity 10a, the pushing portion 25 pushes the second bent portion 14b, so that the first bent portion 14a is separated from the identification terminal 531.

[0062] Reference Figures 1 to 4In this way, by setting a detection spring 14 on the metal shell 10 and triggering the circuit on and off by the mechanical deformation of the detection spring 14, the automatic identification of the HDMI / DP plug is realized. At the same time, only when the second spring 12b and the third spring 71 are separated from the slider 21 at the same time, the DP can push the slider 21 to move and release to form a complete first plug-in cavity 10a. The identification terminal group 53 includes at least one identification terminal 531 for connecting to the circuit board 60. The first curved portion 14a of the detection spring 14 is in contact with the identification terminal 531 under normal conditions; the sliding component 20 is provided with a push portion 25. When the matching opponent connector is inserted into the first plug-in cavity 10a, the sliding component 20 is displaced so that the push portion 25 pushes the second curved portion 14b, driving the first curved portion 14a to separate from the identification terminal 531.

[0063] Specifically, the pushing portion 25 is arranged on the side wall of the sliding assembly 20, the second bending portion 14b is located on the moving path of the pushing portion 25, the identification terminal 531 is connected to the detection circuit, and the first bending portion 14a outputs an insertion signal when it is separated from the identification terminal 531, accurately distinguishing the DP / HDMI insertion status.

[0064] Specifically, an avoidance groove is provided on the top of the sliding body 21a, and the third contact portion 71a of the third elastic piece 71 extends out of the avoidance groove to the front of the sliding body 21a. The second contact portion 12b1 and the third contact portion 71a are respectively located at the upper and lower positions of the insertion port of the first plug-in cavity 10a. A limiting groove (of course, it can also be a limiting protrusion) is also provided on the side of the sliding body 21a away from the second plug-in cavity 10b. When the third blocking portion 71b is in the initial position, it is clamped in the limiting groove to block the slider 21 from moving; when the third blocking portion 71b is in the initial position, it is clamped in the limiting groove to block the slider 21 from moving; when the third blocking portion 71b is in the initial position, it is clamped in the limiting groove to block the slider 21 from moving. When the matching opponent connector is being inserted into the first plug-in cavity 10a (that is, the connector that is matched with the first plug-in cavity 10a, DP in this example), the second spring piece 12b and the third spring piece 71 are disengaged from the slider 21, and the slider 21 moves inward to release the first plug-in cavity 10a. When plugged into place, the abutting portion of the slider 21 pushes the second bent portion 14b, so that the first bent portion 14a is separated from the identification terminal 531. The mechanical deformation of the third spring piece 71 triggers the circuit to be switched on and off, thereby realizing automatic identification of the opponent connector type.

[0065] In addition, this type of switchable socket has the problem of insufficient electromagnetic shielding effectiveness in high-frequency signal transmission scenarios. The shielding range of the metal shell is limited by its own structure, and external electromagnetic interference can easily couple to the internal terminal module through the gap between the slider and the metal shell. Especially in high-frequency signal transmission scenarios, the signal crosstalk problem is prominent, which seriously affects the transmission quality.

[0066] Specifically, because the slider must move to accommodate different interfaces (it's fixed to create a small space when HDMI is inserted, and slides to create a larger space when DP is inserted), a mechanical gap (such as the sliding track and movable joints) inevitably exists between it and the metal shell, disrupting the integrity of the metal shell as a shield. When high-frequency signals (including those for DP and HDMI) are transmitted between the mating terminals, electromagnetic interference can easily leak or intrude through this gap, causing signal crosstalk or excessive radiation, making it difficult to meet the electromagnetic compatibility requirements of high-reliability electronic equipment.

[0067] In addition, the docking terminals usually have a main signal area (high-speed differential signal) and an auxiliary signal area (low-speed control signal), which are adapted to the core signal requirements of DP and HDMI respectively. However, the docking terminals are arranged in conventional parallel, and the shared docking terminals are compatible with dual interfaces. The docking terminal layout needs to take into account different pin definitions, making it difficult to optimize the high-frequency grounding design, resulting in limited grounding layout and difficulty in forming an effective shielding loop.

[0068] To further enhance the electromagnetic shielding performance of switchable sockets in multi-interface compatibility scenarios, an optimization solution for the docking terminal structure and arrangement is urgently needed to improve shielding effectiveness, isolate signals, reduce noise, and enhance transmission quality.

[0069] Combine Figure 2 and Figure 4 The conductive module 30 is disposed in the second plug-in cavity 10b. The conductive module 30 includes an insulating body 40 and a terminal module 50 combined with the insulating body 40. The terminal module 50 includes a plurality of main signal terminal groups 51. Each main signal terminal group 51 includes a grounding connector 511 and two signal connectors 512. The grounding connector 511 includes a grounding connector portion 511a for connecting with a counterpart connector, two grounding connector portions 511c for connecting with the circuit board 60, and a connector connecting the two grounding connector portions 511c and The grounding fixing portion 511b of the grounding docking portion 511a; each signal connector 512 includes a signal docking portion 512a for docking with the opponent connector, a signal connecting portion 512c for connecting with the circuit board 60, and a signal fixing portion 512b connecting the signal docking portion 512a and the signal connecting portion 512c; wherein, the two signal connecting portions 512c in the same main signal terminal group 51 are located between the two grounding connecting portions 511c, and the grounding connecting portions 511c in adjacent main signal terminal groups 51 are adjacent.

[0070] Reference Figure 5 and Figure 6The terminal module 50 includes multiple main signal terminal groups 51 and several auxiliary signal terminal groups 52, namely the main signal area (high-speed differential signals) and the auxiliary signal area (low-speed control signals), which respectively adapt to the signal requirements of DisplayPort and HDMI. This is to address the problem of insufficient electromagnetic shielding effectiveness of traditional switchable sockets during high-frequency signal transmission (incomplete ground paths, failure to isolate the ground loops of different interfaces, and causing crosstalk).

[0071] The grounding connector 511 is in a “Y” shape, wherein the two grounding connection portions 511 c are bifurcated portions of the “Y” shape, and the grounding docking portion 511 a is a merging portion of the “Y” shape.

[0072] The signal connector 512c is a high-frequency signal solder pin, typically used to transmit differential signals. The ground connector 511c is a ground solder pin that serves as a physical boundary for electromagnetic shielding, enclosing the high-frequency signal path and creating a localized Faraday cage effect. Specifically, the two signal connectors 512c of each main signal terminal group 51 are enclosed by two ground connectors 511c to achieve a shielding effect against crosstalk.

[0073] In this embodiment, the terminal module 50 includes a main signal terminal group 51 and an auxiliary signal terminal group 52. The main signal terminal group 51 includes a first signal terminal group 51a, a second signal terminal group 51b, a third signal terminal group 51c, a fourth signal terminal group 51d, and a fifth signal terminal group 51e, arranged along the width of the metal shell 10 (perpendicular to the connector insertion direction). The auxiliary signal terminal group 52 is located between the fourth signal terminal group 51d and the fifth signal terminal group 51e. In other embodiments, the conductive module 30 further includes an identification terminal group 53. The auxiliary signal terminal group 52 and the identification terminal group 53 are separated by the fifth signal terminal group 51e (to avoid signal interference and meet layout requirements). The main signal terminal group 51 is used to transmit high-frequency signals, while the auxiliary signal terminal group 52 is used to transmit low-frequency signals. The layout of the auxiliary signal terminal group 52 is similar to that of the main signal terminal group 51, and details can be found below.

[0074] The two signal connection parts 512c in each main signal terminal group 51 are located between the two ground connection parts 511c. Each main signal terminal group 51 includes a ground connection part 511 and two signal connection parts 512. The pins connected to the circuit board 60 form a "ground-signal-signal-ground" enclosed layout along the width direction of the metal shell 10 on the circuit board 60 to reduce crosstalk.

[0075] The technical solution of the present invention locates two signal connectors 512c in the same signal terminal group between two ground connectors 511c. The signal connectors 512c are surrounded by the ground connectors 511c, which (connected to the ground plane of the circuit board 60) act as an "electromagnetic shielding wall," sandwiching the two signal connectors 512c within the same group. Because the ground connectors 511c are directly connected to ground potential, they effectively absorb or reflect electromagnetic radiation between the two signal connectors 512c, suppressing crosstalk between the two signal lines within the same group. This addresses the crosstalk issue that occurs in conventional solutions where only one side of the signal connectors 512c within the same group is grounded, thereby improving signal quality. Furthermore, by closely arranging the ground connectors 511c of adjacent signal terminal groups (on the circuit board plane), a continuous "ground barrier" is formed, physically isolating the signal connectors 512c of different signal terminal groups. This blocks the electromagnetic paths between the different signal terminal groups and prevents signal interference between the groups. In this way, compared with the existing solution that may only rely on the external shielding of the metal shell 10, while the internal signal line lacks ground isolation, this solution uses the metal shell 10 as an external shielding body to form an "inner and outer double-layer shielding" with the internal grounding connector 511. The metal shell 10 shields external electromagnetic interference, and the layout of the grounding connector 511 shields interference between internal signals, solving the problem of "insufficient electromagnetic shielding effectiveness" in the existing socket connector with movable switching space.

[0076] By improving the effectiveness of electromagnetic shielding, it not only takes into account the convenience of shared sockets, but also meets the requirements of transmission quality. In high-speed data transmission scenarios, the "ground-signal-signal-ground" enclosure layout can avoid crosstalk between signal groups, ensure that the signal quality meets the protocol requirements, and reduce communication interruptions or data errors caused by interference.

[0077] Combine Figure 5 and Figure 6 Specifically, the signal connector 512 and the ground connector 511 are Z-shaped, with the docking portion forming the upper horizontal section of the Z-shape, the connecting portion forming the lower horizontal section of the Z-shape, and the fixed portion forming the middle section connecting the upper and lower sections. It should be noted that the term "Z-shape" is merely used to describe the general shape of the signal / ground connector 511 and does not necessarily require the docking and connecting portions to be horizontal, or that the fixed portion to be tilted. It simply describes the general shape as a Z-shape.

[0078] Reference Figure 6 Furthermore, the terminal module 50 has a first position H1 and a second position H2 at a height perpendicular to the plug-in direction; in the same main signal terminal group 51: the signal docking portion 512a is located at the first position H1, and the grounding docking portion 511a is located at the second position H2; or the signal docking portion 512a is located at the second position H2, and the grounding docking portion 511a is located at the first position H1.

[0079] The signal docking portion 512a includes a signal docking section 2a1 and a signal terminal 2a2 provided on the signal docking section 2a1, and the signal docking section 2a1 is connected to the signal fixing portion 512b; the grounding docking portion 511a includes a grounding docking section 1a1 and a grounding terminal 1a2 provided on the grounding docking section 1a1, and the grounding docking section 1a1 is connected to the grounding fixing portion 511b; the signal docking section 2a1 is located at one of the first position H1 and the second position H2, and the grounding docking section 1a1 is located at the other position, the signal docking section 2a1 is roughly parallel to the grounding docking section 1a1, and the grounding terminal 1a2 extends between the two signal terminals 2a2.

[0080] Furthermore, the signal docking portions 512a of two adjacent main signal terminal groups 51 are located at different positions: when the signal docking portion 512a of one main signal terminal group 51 is at the first position H1, the signal docking portion 512a of the adjacent main signal terminal group 51 is at the second position H2. The signal docking portions 512a of adjacent main signal terminal groups 51 are alternating in height: the signal docking portions 512a of adjacent main signal terminal groups 51 are forcibly staggered in height (if one group is at H1, the adjacent group is at H2). If the signal docking segment 2a1 of terminal group A is at H1 (with the grounding docking segment 1a1 at H2) and the signal docking segment 2a1 of terminal group B is at H2 (with the grounding docking segment 1a1 at H1), the signal docking segments 2a1 of the two main signal terminal groups 51 are respectively distributed in the H1 / H2 layers, thereby preventing the superposition of electromagnetic energy from multiple main signal terminal groups 51 in the same layer (e.g., only the signal of terminal group A is in the H1 layer, and only the signal of terminal group B is in the H2 layer), thereby reducing intra-layer crosstalk.

[0081] Furthermore, within the same main signal terminal group 51, the grounding portion 511a is located between the two signal mating portions 512a. The terminal module 50 is integrated into the insulating body 40, which comprises an insulating rubber core. The terminal module 50 is joined to the insulating body 40 through methods such as injection molding. The signal / grounding portion 511a is the plug-in terminal for mating with a mating connector, inserting into the mating connector to achieve an electrical connection. The grounding portion 511a is inserted between the two signal mating portions 512a, forming a physical isolation barrier and reducing crosstalk between signal groups. Specifically, shielding is achieved at the connection points (pins) soldered to the circuit board 60 through a surrounding "ground-signal-signal-ground" layout. At the mating end (the starting / ending point of signal transmission with the mating connector), the ground terminal 1a2 (the end of the grounding mating segment 1a1) is horizontally inserted between two signal terminals 2a2 (the ends of the signal mating segment 2a1), forming a "signal terminal 2a2-ground terminal 1a2-signal terminal 2a2" layout. This ensures that the signal path from the mating end to the connecting end is surrounded by the ground structure. This solution forms a shielding loop by combining the "signal-ground-signal" layout at the mating end with the "ground-signal-signal-ground" layout at the connecting end. Ground terminal 1a2 extends horizontally directly into contact with signal terminal 2a2, suppressing signal crosstalk within the same main signal terminal group 51 and improving electromagnetic shielding effectiveness, thereby isolating signals, reducing noise, and enhancing transmission quality.

[0082] In summary, at the connection end (circuit board 60 side), the connection portion (pin) of the terminal module 50 achieves horizontal signal isolation (suppressing intra-group crosstalk within the same main signal terminal group 51) and inter-group isolation (blocking cross-group interference) through the structure of "signal connection portion 512c surrounded by two ground connection portions 511c" combined with the design of "ground connection portions 511c of adjacent main signal terminal groups 51" . At the mating end (the side that contacts the mating connector), the "height offset" of the signal mating segment 2a1 and the ground mating segment 1a1 (separation in the vertical dimension) and the "ground terminal 1a2 extending between the two signal terminals 2a2" (insertion in the horizontal dimension) achieve vertical shielding and direct horizontal isolation, preventing crosstalk and ensuring continuous shielding effectiveness from the circuit board 60 end to the mating end.

[0083] As described above, the terminal module 50 is integrated into the insulating body 40 to avoid affecting the transmission of high-frequency signals and ensure the effect of high-frequency signal transmission.

[0084] Reference Figure 8Furthermore, after the terminal module 50 is combined with the insulating rubber core, the insulating rubber core is trimmed to expose the bent portion of the fixed portion, thereby preventing interference with high-frequency signal transmission and improving high-frequency signal transmission efficiency. Trimming refers to the process of mechanically cutting, separating, or exposing specific portions of a material. The signal fixing portion 512b and the ground fixing portion 511b are exposed on the surface of the insulating body 40 through trimming. This physically cuts the metal components, which were originally encased in insulating material, to expose them.

[0085] Of course, it is also possible to pre-design openings or grooves during the injection molding stage of the insulating body 40 so that the metal parts are naturally exposed after injection molding without the need for subsequent cutting; or use a high-energy laser to directly vaporize the insulating material to achieve precise exposure.

[0086] The insulating body 40 includes a main body and a plug-in portion disposed within the main body. The plug-in portion faces the opening of the second plug-in cavity 10b. The signal connection portion 512c and the ground connection portion 511c are exposed on the main body for soldering to the circuit board 60. Material is removed from the side of the main body facing away from the plug-in portion, exposing portions of the signal fixing portion 512b and the ground fixing portion 511b on the main body surface. The main body and the plug-in portion form a rightwardly tilted "T" shape, with the main body forming the horizontal section of the "T" and the plug-in portion forming the vertical section of the "T." The signal docking portion 512a and the ground docking portion 511a are located within the vertical section, while the signal fixing portion 512b and the ground fixing portion 511b are located within the horizontal section.

[0087] Reference Figures 9 to 13 The present invention also proposes a connector combination, which includes a socket connector, a first plug connector 200 and a second plug connector 300. The specific structure of the socket connector refers to the above embodiment. Since this connector combination adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0088] Reference Figure 9 and Figure 10 The second plug connector 300 is adapted to the second plug cavity 10b, referring to Figure 9 and Figure 10 , the second plug connector 300 is inserted into the second insertion cavity 10b along the insertion direction, and the second plug connector 300 is inserted into the second insertion cavity 10b and connected to the conductive module 30. Figure 11When the second plug connector 300 is reversely inserted into the second insertion cavity 10b, the anti-mock protrusion 21b will collide with the edge of the interface of the second plug connector 300, forming a hard interference and preventing further sliding in; at the same time, due to the reverse insertion, the second plug connector 300 has no effect on the second contact portion 12b1 of the second elastic sheet 12b, and the first limiting portion 23 of the second elastic sheet 12b abuts against the second blocking portion 12b2 of the slider 21 to limit the movement of the slider 21.

[0089] Reference Figure 12 and Figure 13 The first plug connector 200 is adapted to the first plug-in cavity 10 a , and the first plug connector 200 is inserted into the first plug-in cavity 10 a along the insertion direction. The first plug connector 200 is inserted into the first plug-in cavity 10 a and connected to the conductive module 30 .

[0090] In this solution, the first plug connector 200 is a DP connector, the second plug connector 300 is an HDMI connector, and the conductive module 30 is in a common area to ensure dual-plug compatibility.

[0091] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A socket connector, characterized in that: include: Metal shell (10); A sliding assembly (20) comprises a slider (21) movably disposed in the metal shell (10), wherein the slider (21) cooperates with the metal shell (10) to form a convertible first plug-in cavity (10a) and a second plug-in cavity (10b), wherein the second plug-in cavity (10b) is configured as a part of the first plug-in cavity (10a); A conductive module (30) is disposed in the second plug-in cavity (10b), the conductive module (30) comprising an insulating body (40) and a terminal module (50) coupled to the insulating body (40), the terminal module (50) being used for connecting to a counterpart connector; and A metal cover (70) is sleeved outside the metal shell (10); the metal cover (70) has a limiting structure (70a), and the slider (21) is provided with a matching structure (26) that matches the limiting structure (70a); wherein the limiting structure (70a) can selectively place the matching structure (26) in a locked matching state or a released state; In the locked engagement state, the limiting structure (70a) cooperates with the matching structure (26) to limit the movement of the slider (21) relative to the metal shell (10); In the disengaged and released state, the limiting structure (70a) and the matching structure (26) are disengaged from each other, and the slider (21) can move relative to the metal shell (10).

2. The socket connector according to claim 1, wherein: The limiting structure (70a) is a third spring piece (71) provided on the metal cover (70); a third notch (13a) for accommodating the third spring piece (71) is provided on the top wall of the metal shell (10); and the third spring piece (71) is provided with a third contact portion (71a) and a third blocking portion (71b) extending into the metal shell (10); The matching structure (26) is a second limiting portion (24) provided on the slider (21), and the second limiting portion (24) matches the third blocking portion (71b), wherein the third blocking portion (71b) is in a locked matching state when in contact with the second limiting portion (24); and the third elastic piece (71) is pushed to deform by the third contact portion (71a), so that the third blocking portion (71b) is separated from the second limiting portion (24) and enters a disengaged release state.

3. The socket connector according to claim 1, wherein: The sliding assembly (20) further includes an elastic member (22), wherein the elastic member (22) is disposed between the slider (21) and the insulating body (40) and is used to provide a restoring force after the slider (21) moves. And / or, a guide structure (T) is provided between the slider (21) and the inner wall of the metal shell (10), or a guide structure (T) is provided between the slider (21) and the insulating body (40), for limiting the moving direction of the slider (21); The slider (21) comprises a sliding body (21a) and an anti-fouling protrusion (21b) provided on the sliding body (21a), and the anti-fouling protrusion (21b) is used to prevent a matching counterpart connector from being reversely inserted into the second plug-in cavity (10b).

4. The socket connector according to claim 1, wherein: The top wall of the metal shell (10) is provided with a first notch (11a) and a first spring piece (11b) built into the first notch (11a), the first spring piece (11b) including a first contact portion (11b1) and a first blocking portion (11b2) both extending into the metal shell (10), wherein when a matching counterpart connector is inserted into the second plug-in cavity (10b), the counterpart connector touches the first contact portion (11b1) and drives the first spring piece (11b) away from the second plug-in cavity (10b); when the counterpart connector is inserted in reverse, the first blocking portion (11b2) resists the counterpart connector and the first contact portion (11b1) has no effect.

5. The socket connector according to claim 1, wherein: The bottom wall of the metal shell (10) is provided with a second notch (12a) and a second elastic piece (12b) built into the second notch (12a), and the second elastic piece (12b) has a second contact portion (12b1) and a second blocking portion (12b2) extending into the metal shell (10); the slider (21) is provided with a first limiting portion (23) cooperating with the second blocking portion (12b2), wherein, when a matching counterpart connector is inserted into the first plug-in cavity (10a), the counterpart connector pushes the second contact portion (12b1), drives the second elastic piece (12b) away from the first plug-in cavity (10a), and separates the first limiting portion (23) from the second blocking portion (12b2); when reversely inserted, the second contact portion (12b1) does not work, and the first limiting portion (23) abuts against the second blocking portion (12b2).

6. The socket connector according to claim 1, wherein: The terminal module (50) includes a plurality of main signal terminal groups (51), each of the main signal terminal groups (51) includes a grounding connector (511) and two signal connectors (512), the grounding connector (511) includes a grounding connector portion (511a) for connecting with a counterpart connector, two grounding connector portions (511c) for connecting with a circuit board (60), and a grounding fixing portion (511b) connecting the two grounding connector portions (511c) and the grounding connector portion (511a); each of the signal connectors (512) includes a signal connecting portion (512a) for connecting with a counterpart connector, a signal connecting portion (512c) for connecting with a circuit board (60), and a signal fixing portion (512b) connecting the signal connecting portion (512a) and the signal connecting portion (512c); The two signal connection portions (512c) in the same main signal terminal group (51) are located between the two ground connection portions (511c), and the ground connection portions (511c) in adjacent main signal terminal groups (51) are adjacent.

7. The socket connector according to claim 6, wherein: The signal docking portion (512a) includes a signal docking section (2a1); the grounding docking portion (511a) includes a grounding docking section (1a1); the terminal module (50) has a first position (H1) and a second position (H2) at a height perpendicular to the plugging direction; wherein, in the same main signal terminal group (51): The signal docking section (2a1) is located at a first position (H1), and the ground docking section (1a1) is located at a second position (H2); or the signal docking section (2a1) is located at the second position (H2), and the ground docking section (1a1) is located at the first position (H1); And / or, the signal docking segments (2a1) in two adjacent main signal end groups (51) are located at different positions: when the signal docking segment (2a1) of one of the main signal end groups (51) is at a first position (H1), the signal docking segment (2a1) of the other adjacent main signal end group (51) is at a second position (H2); And / or, the signal docking portion (512a) includes a signal terminal (2a2) provided on the signal docking section (2a1), and the two ends of the signal docking section (2a1) are respectively connected to the signal fixing portion (512b) and the signal terminal (2a2); the grounding docking portion (511a) includes a grounding terminal (1a2) provided on the grounding docking section (1a1), and the two ends of the grounding docking section (1a1) are respectively connected to the grounding fixing portion (511b) and the grounding terminal (1a2); wherein, in the same main signal terminal group (51): the grounding terminal (1a2) extends between the two signal terminals (2a2).

8. The socket connector according to claim 6, wherein: The terminal module (50) and the insulating body (40) are injection molded as one piece; the signal docking portion (512a) and the signal connecting portion (512c) are both bent and arranged with the signal fixing portion (512b); the grounding docking portion (511a) and the grounding connecting portion (511c) are both bent and arranged with the grounding fixing portion (511b); and the signal fixing portion (512b) and the grounding fixing portion (511b) are at least partially exposed on the surface of the insulating body (40).

9. The socket connector according to claim 1, wherein: The terminal module (50) further includes an identification terminal group (53), and the metal shell (10) is further provided with a detection spring (14), wherein the detection spring (14) has a first bent portion (14a) and a second bent portion (14b), wherein the first bent portion (14a) contacts the identification terminal group (53), and the slider (21) has a push portion (25), wherein a matching counterpart connector is inserted into the first plug-in cavity (10a) and pushes the slider (21), so that the push portion (25) pushes the second bent portion (14b), thereby driving the first bent portion (14a) to separate from the identification terminal group (53).

10. A connector assembly, characterized in that: It comprises a socket connector according to any one of claims 1 to 9, a first plug connector (200) and a second plug connector (300), wherein the first plug connector (200) is adapted to the first plug-in cavity (10a), and the second plug connector (300) is adapted to the second plug-in cavity (10b).

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