WO2025113219A1 - Terminal group - Google Patents

Abstract

Disclosed is a terminal group, the terminal group comprising a plurality of ground terminals, which are arranged at intervals in a first direction, each of the ground terminals comprising a ground contact section and a ground fixing section which are sequentially arranged, and the ground fixing section of each ground terminal being provided with at least one ground area; an insulator, the ground fixing sections being held inside of the insulator, the insulator comprising a first surface and a second surface arranged facing away from one another, and the insulator being provided with hollowed-out areas that expose the ground areas; and a conductive shielding plate, which is arranged on the first surface, the surface of the conductive shielding plate facing the first surface being provided with a first boss area embedded into each hollowed-out area, and the first boss areas each being tightly attached and fixed to a corresponding ground area. According to the present application, the stability of contact of the conductive shielding plate and a ground bar with each ground terminal is effectively ensured, and a unified grounding effect of the terminal group is ensured, facilitating the improvement of transmission speed.

Description

Terminal group

The present invention claims the priority of the Chinese patent application with application number 202422621221.2 and invention name “Terminal Group” filed with the China Patent Office on October 29, 2024. The entire contents of the application are incorporated herein by reference.

The present invention claims the priority of the Chinese patent application with application number 202311615691.1 and invention name “Terminal Group” filed with the China Patent Office on November 28, 2023. The entire contents of the application are incorporated herein by reference.

Technical Field

The invention belongs to the technical field of connectors, and in particular relates to a terminal group.

Background Art

In order to achieve the overall grounding of each grounding terminal of the connector and ensure the grounding effect, a grounding component that contacts each grounding terminal is generally provided in the terminal group. At present, the grounding component is generally fixed to the grounding terminal by a snap-on method. The grounding terminal is provided with a matching snap-on, and the grounding component is provided with a snap-on that matches the snap-on. The snap-on and the snap-on are interference fit to achieve contact connection. This fixing method cannot guarantee the contact stability and fixing firmness of the grounding component and each grounding terminal, and has a certain impact on the transmission speed; at the same time, a snap-on needs to be arranged on each grounding terminal, and the grounding component also needs to be arranged with a one-to-one corresponding snap-on structure, which has a high production cost, cumbersome steps, and a low yield rate.

Summary of the invention

The object of the present invention is to provide a terminal group to solve the technical problems in the prior art that the grounding component and the grounding terminal are fixed by snaps, the contact stability and the fixing firmness cannot be guaranteed, a snap socket needs to be arranged on each grounding terminal, and a one-to-one corresponding snap structure needs to be arranged on the grounding component, the production cost is high, the steps are cumbersome, and the yield rate is low.

To achieve the above purpose, a technical solution adopted in this application is:

A terminal set, comprising:

A plurality of grounding terminals are arranged in an interval arrangement along a first direction, each of the grounding terminals comprises a grounding contact section and a grounding fixing section which are arranged in sequence, and at least one grounding area is arranged on the grounding fixing section of each grounding terminal;

an insulator, wherein the grounding fixing section is fixed inside the insulator, the insulator comprises a first surface and a second surface disposed opposite to each other, and the insulator is provided with a hollow area exposing the grounding area;

A conductive shielding plate is arranged on the first surface, and a first boss area embedded in each of the hollow areas is provided on the side of the conductive shielding plate facing the first surface, and the first boss area is tightly fitted and fixed to the corresponding grounding area;

A grounding strip, extending along the first direction and arranged on the second surface, and the grounding strip is provided with a second boss area embedded in each of the hollow areas, and the second boss area is tightly fitted and fixed to the corresponding grounding area;

Wherein, at least one of the grounding areas of each of the grounding terminals is arranged at an end of the grounding fixing section close to the grounding contact section, the grounding strip is arranged on the second surface close to one end of the grounding contact section, and at least one grounding protrusion is provided on a side surface of the grounding strip close to the grounding contact section, the grounding protrusion is located at the positive projection of the grounding terminal on the grounding strip, and the grounding protrusion is extended from the side surface of the grounding strip in a direction pointing to the grounding contact section;

The conductive shielding plate is provided with at least one shielding protrusion on a side close to the grounding contact section. The shielding protrusion is located at the positive projection of the grounding terminal on the conductive shielding plate and extends from the side of the conductive shielding plate in a direction pointing to the grounding contact section.

In one or more embodiments, the first boss area is fixed to the grounding area by welding, and/or the second boss area is fixed to the grounding area by welding.

In one or more embodiments, the first boss area is fixed to the grounding area by laser welding.

In one or more embodiments, the grounding area is provided with a first opening, the second boss area is provided with a second opening corresponding to the first opening, and the first boss area, the grounding area and the second boss area are fixed by welding parts arranged in the first opening and the second opening.

In one or more embodiments, a first recessed area corresponding to the first boss area is provided on a side of the conductive shielding plate facing away from the first surface to mark the position of the first boss area.

In one or more embodiments, a second recessed area corresponding to the second boss area is provided on a side of the ground strip facing away from the second surface to mark the position of the second boss area.

In one or more embodiments, at least one second notch is provided on a side of the conductive shielding plate close to the ground contact section, and the second notch is located at a gap between orthographic projections of adjacent ground terminals on the conductive shielding plate.

In one or more embodiments, the insulator is provided with a plurality of opening areas, and the orthographic projection of each of the opening areas on the first surface is covered by the orthographic projection of a grounding terminal on the first surface, and the surface of the conductive shielding plate is provided with a protrusion embedded in the opening area, and the end face of the protrusion is in contact with the grounding terminal.

In one or more embodiments, a third opening is provided at a position corresponding to the ground terminal and the opening area, and an elastic arm is provided inside the third opening, one end of the elastic arm is connected to the inner wall of the third opening, and the other end presses the protrusion in a direction from the second surface to the first surface.

In one or more embodiments, a support protrusion wrapped around the inner end of the ground contact segment is provided on one side of the insulator close to the ground contact segment, and the ground protrusion and/or the shielding protrusion extends to the surface of the support protrusion.

In one or more embodiments, a plurality of signal terminals are further included, wherein the plurality of signal terminals are arranged in an interval arrangement along the first direction, the signal terminals are arranged between adjacent ground terminals, and include a signal fixing section held in the insulator and a signal contact section extending out of the insulator, the signal contact section includes an extension portion and a contact portion sequentially arranged in a direction away from the signal fixing section, and the width of the contact portion is greater than that of the extension portion.

In one or more embodiments, the plurality of second boss areas include at least one second notch boss area, and the second notch boss area extends to an end of the grounding strip close to the grounding contact section.

In one or more embodiments, the grounding protrusion corresponds to the second boss area one by one, at least part of the second boss area is arranged at the corresponding grounding protrusion, and the second notch boss area extends to the corresponding grounding boss part close to one end of the grounding contact section.

In one or more embodiments, the second notch boss area is half-waisted, square, circular with a notch, or oval with a notch.

In one or more embodiments, the second notch boss area is arranged at the end of the grounding strip in the first direction.

In one or more embodiments, the plurality of first boss areas include at least one first notch boss area, and the first notch boss area extends to an end of the conductive shielding plate close to the ground contact section.

In one or more embodiments, the shielding protrusions correspond to the first boss areas one by one, at least a portion of the first boss areas are arranged at the corresponding shielding protrusions, and the first notch boss areas extend to one end of the corresponding shielding protrusions close to the ground contact section.

In one or more embodiments, the first notch boss area is half-waisted, square, circular with a notch, or oval with a notch.

In one or more embodiments, the first notch boss area is arranged at an end portion of the conductive shielding plate in the first direction.

In one or more embodiments, fixing columns are arranged on the first surface and/or the second surface of the insulator, and fixing holes matching the fixing columns are arranged on the conductive shielding plate and/or the grounding bar.

To achieve the above purpose, another technical solution adopted by this application is:

A terminal set, comprising:

A plurality of grounding terminals are arranged in an interval arrangement along a first direction, each of the grounding terminals comprises a grounding contact section and a grounding fixing section which are arranged in sequence, and at least one grounding area is arranged on the grounding fixing section of each grounding terminal;

an insulator, wherein the grounding fixing section is fixed inside the insulator, the insulator comprises a first surface and a second surface disposed opposite to each other, and the insulator is provided with a hollow area exposing the grounding area;

A conductive shielding plate is arranged on the first surface. A first boss area embedded in each hollow area is provided on the side of the conductive shielding plate facing the first surface. The first boss area is tightly fitted and fixed to the corresponding grounding area.

Different from the prior art, the beneficial effects of the present invention are:

The conductive shielding plate, grounding terminal and grounding strip of the present application are tightly fitted and welded to achieve a sandwich structure with stable connection, which can effectively ensure the contact stability between the conductive shielding plate and the grounding strip and each grounding terminal, ensure the unified grounding effect of the terminal group, and help to improve the transmission speed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an embodiment of a connector assembly of the present application;

FIG2 is a schematic structural diagram of an embodiment of a terminal assembly of the present application;

FIG3 is a schematic structural diagram of a terminal of an embodiment of a terminal assembly of the present application;

Fig. 4 is a schematic cross-sectional view of the structure along the A-A plane in Fig. 2;

FIG5 is a schematic structural diagram of another embodiment of the terminal assembly of the present application;

FIG6 is a schematic cross-sectional view of the structure along the B-B plane in FIG5 ;

FIG7 is a schematic structural diagram of another embodiment of the terminal assembly of the present application;

Fig. 8 is a schematic cross-sectional view of the structure along the C-C plane in Fig. 7;

FIG9 is a cross-sectional structural diagram of another embodiment of the terminal assembly of the present application;

FIG10 is a partial enlarged schematic diagram of A in FIG5 ;

FIG11 is a schematic structural diagram of an embodiment of a conductive shielding plate of the present application;

Fig. 12 is a schematic cross-sectional view of the structure along the D-D plane in Fig. 5;

Fig. 13 is a schematic cross-sectional view of the structure along the E-E plane in Fig. 2;

FIG14 is a schematic structural diagram of another embodiment of the terminal assembly of the present application;

FIG15 is a schematic structural diagram of a first surface of another embodiment of an insulator of the present application;

FIG16 is a schematic structural diagram of another embodiment of the conductive shielding plate of the present application;

FIG17 is a schematic structural diagram of another embodiment of the terminal assembly of the present application from another viewing angle;

FIG18 is a schematic diagram of the second surface structure of another embodiment of the insulator of the present application;

FIG19 is a schematic structural diagram of another embodiment of the grounding strip of the present application;

20 is a schematic diagram of the assembly structure of an insulator and a grounding strip in another embodiment of the terminal assembly of the present application;

FIG. 21 is a schematic structural diagram of an embodiment of a signal terminal of the present application.

DETAILED DESCRIPTION

The present application will be described in detail below in conjunction with the various embodiments shown in the accompanying drawings. However, these embodiments do not limit the present application, and any structural, methodological, or functional changes made by a person of ordinary skill in the art based on these embodiments are all within the scope of protection of the present application.

The first direction, second direction and docking direction defined in this application are all based on Figure 1, wherein the X direction shown in Figure 1 is the first direction, the Y direction perpendicular to the X direction is the second direction, and the Z direction perpendicular to the X direction and the Y direction is the docking direction.

In order to ensure isolation between adjacent terminal groups of the connector and unified grounding of each grounding terminal in the terminal group, a shielding plate is currently arranged on one side of the terminal group, and the shielding plate contacts each grounding terminal to achieve unified grounding.

The shielding plate of the traditional connector is connected to the grounding terminal by snap-fit, wherein a snap facing the grounding terminal is arranged on the shielding plate, and a corresponding snap-in is arranged on the grounding terminal, and the snap-in and the snap-in are contact-connected by interference fit. This fixing method cannot guarantee the contact stability and fixing firmness between the grounding component and each grounding terminal, and has a certain impact on the transmission speed; at the same time, a snap-in needs to be arranged on each grounding terminal, and the grounding component also needs to be arranged with a one-to-one corresponding snap-in structure, which has a high production cost, cumbersome steps, and a low yield rate.

In order to solve the above problems, the applicant provides a new type of connector assembly, the terminal group of which can ensure stable contact between each grounding terminal and the grounding assembly, and the grounding assembly is firmly fixed, thereby ensuring the stability of the transmission speed, which can reach 56G high-speed transmission.

Specifically, please refer to FIG. 1 , which is a schematic structural diagram of an embodiment of a connector assembly of the present application.

As shown in FIG. 1 , the connector assembly includes a connector 1 a and a mating connector 1 b mated with the connector 1 a .

The connector 1a includes a plurality of terminal groups 10a arranged at even intervals along the second direction Y and an insulating seat 20a for fixing the terminal groups 10a. Each terminal group 10a includes a plurality of terminals 100a arranged at even intervals along the first direction X.

The docking connector 1b includes a plurality of docking terminal groups 10b evenly spaced along the second direction Y and a docking insulating seat 20b for fixing the docking terminal groups 10b. Each docking terminal group 10b includes a plurality of docking terminals 100b evenly spaced along the first direction X, and each docking terminal 100b corresponds to each terminal 100a.

It can be understood that when the connector 1a and the mating connector 1b are mated with each other, the corresponding mating terminals 100b and terminals 100a are in contact to achieve electrical connection.

The structure of the terminal set 10a is described in detail below to illustrate the fixing method of the grounding assembly in the present application. Please refer to Figures 2 and 3, Figure 2 is a schematic diagram of the structure of an embodiment of the terminal set of the present application, and Figure 3 is a schematic diagram of the structure of a terminal of an embodiment of the terminal set of the present application.

As shown in FIG. 2 and FIG. 3 , the terminal group 10 a includes a plurality of terminals 100 a arranged in an interval manner along a first direction x.

The plurality of terminals 100a include a plurality of ground terminals 1000 and a plurality of signal terminals 2000. The ground terminals 1000 include a ground contact section 101a, a ground fixing section 102a and a ground installation section 103a connected in sequence. The signal terminals 2000 include a signal contact section 101A, a signal fixing section 102A and a signal installation section 103A connected in sequence.

In one embodiment, the ground terminal 1000 and the signal terminal 2000 may be planar structures located in the same plane, and their extension directions may be consistent. Specifically, as shown in the figure, the ground contact segment 101a of the ground terminal 1000 may extend along the mating direction Z, the width direction of the ground contact segment 101a may be parallel to the first direction x, the ground installation segment 103a may be extended along the first direction x, and the width direction of the ground installation segment 103a may be parallel to the mating direction Z.

Correspondingly, the signal contact section 101A of the signal terminal 2000 can extend along the mating direction Z, the width direction of the signal contact section 101A can be parallel to the first direction x, the signal installation section 103A can extend along the first direction x, and the width direction of the signal installation section 103A can be parallel to the mating direction Z.

In other embodiments, the ground terminal 1000 may also be a three-dimensional structure that is not located in a single plane, and the signal terminal 2000 may also be a three-dimensional structure that is not located in a single plane. For example, the ground contact segment 101a of the ground terminal 1000 may extend along the mating direction Z, the width direction of the ground contact segment 101a may be parallel to the first direction x, the ground installation segment 103a may extend along the second direction y, and the width direction of the ground installation segment 103a may be parallel to the first direction x or the mating direction Z, thereby forming a curved L-shaped terminal.

Correspondingly, the signal contact section 101A of the signal terminal 2000 can extend along the mating direction Z, and the width direction of the signal contact section 101A can be parallel to the first direction x. The signal installation section 103A can be extended along the second direction y, and the width direction of the signal installation section 103A can be parallel to the first direction x or the mating direction Z, thereby forming a curved L-shaped terminal.

Alternatively, in other embodiments, the grounding mounting segment 103a of the grounding terminal 1000 and the signal mounting segment 103A of the signal terminal 2000 may not be extended along the second direction y. For example, the extension direction of the grounding mounting segment 103a of the grounding terminal 1000 may be cross-set with the extension direction of the grounding contact segment 101a, and the extension direction of the signal mounting segment 103A of the signal terminal 2000 may be cross-set with the extension direction of the signal contact segment 101A. Both of these can achieve the effect of the present embodiment and are not limited here.

In one embodiment, a pair of signal terminals 2000 is provided between adjacent ground terminals 1000, and the pair of signal terminals 2000 forms a signal pair. In other embodiments, the number of terminals of the signal pair can be adjusted based on actual conditions, and ground terminals 1000 are provided between adjacent signal pairs, and the effects of this embodiment can be achieved.

The terminal assembly 10a further includes an insulator 200a, in which the grounding fixing section 102a of the grounding terminal 1000 and the signal fixing section 102A of the signal terminal 2000 are fixed, and the insulator 200a includes a first surface 201 and a second surface 202 (not shown) disposed opposite to each other.

In order to achieve shielding between adjacent terminal groups 10a and ensure signal interference shielding effect, the first surface 201 is further arranged with a conductive shielding plate 300a, which can be electrically connected to each grounding terminal 1000 to achieve unified grounding.

The connection method between the conductive shielding plate 300a and the grounding terminal 1000 is described in detail below. Please refer to FIG. 4 , which is a schematic cross-sectional structure diagram of the A-A plane in FIG. 2 .

As shown in FIG4 , the grounding fixing section 102a of the grounding terminal 1000 is provided with a grounding area 1001, and the insulator 200a is provided with hollow areas 203 exposing the grounding area 1001. Accordingly, the conductive shielding plate 300a is provided with a first boss area 301 embedded in each hollow area 203 on the side facing the first surface 201.

The first boss area 301 and the corresponding grounding area 1001 are tightly fitted and fixed, thereby achieving a stable connection between the conductive shielding plate 300 a and each grounding terminal 1000 .

Specifically, the conductive shielding plate 300a can be fixed to the ground terminal 1000 by laser welding. To facilitate laser welding, the conductive shielding plate 300a is further provided with a first recessed area 302 corresponding to the first boss area 301 on the side facing away from the first surface 201, so that the position of the first boss area 301 can be marked during processing.

It is understandable that when fixing the conductive shielding plate 300 a , the first boss area 301 may be embedded into the corresponding hollow area 203 , and then laser welding may be performed on the bottom surface of the first recessed area 302 , thereby fixing the first boss area 301 and the grounding area 1001 .

In order to further realize the common grounding of each grounding terminal 1000 in the terminal group 10a, in another embodiment, the terminal group 10a further includes a grounding strip 500. Please refer to Figures 5 and 6, Figure 5 is a schematic structural diagram of another embodiment of the terminal group of the present application, and Figure 6 is a cross-sectional structural diagram of the B-B surface in Figure 5.

As shown in the figure, the grounding strip 500 may be arranged on the second surface 202 extending along the first direction x, and may cover each hollow area 203 .

A second boss area 501 embedded in each hollow area 203 may be provided on the side of the grounding strip 500 facing the second surface 202 . The second boss area 501 may be tightly fitted and fixed to the corresponding grounding area 1001 , thereby achieving a stable connection between the grounding strip 500 and each grounding terminal 1000 .

Specifically, the second boss area 501 can be fixed to the grounding area 1001 by laser welding. To facilitate the laser welding operation, the grounding strip 500 can be provided with a second recessed area 502 corresponding to the second boss area 501 on the side away from the second surface 202 to mark the position of the second boss area 501.

It is understandable that when installing the grounding strip 500 , the second boss area 501 can be first embedded in the corresponding hollow area 203 , and then laser welding can be performed on the bottom surface of the second recessed area 502 to fix the second boss area 501 and the grounding area 1001 .

The two sides of the grounding terminal 1000 are laser welded to the conductive shielding plate 300a and the grounding strip 500 to form a sandwich structure, which can effectively ensure the contact stability between the conductive shielding plate 300a and the grounding strip 500 and each grounding terminal 1000, ensure the unified grounding effect of the terminal group, and help to improve the transmission speed.

In the above embodiment, in order to improve the fixing stability of the conductive shielding plate 300a and facilitate the arrangement of the grounding strip 500, the grounding region 1001 of the grounding terminal 1000 is arranged at one end of the grounding fixing section 102a close to the grounding contact section 101a, thereby fixing the end of the conductive shielding plate 300a, and correspondingly, the grounding strip 500 is arranged at one end of the second surface 202 close to the grounding contact section 101a. In other embodiments, the grounding region 1001 can also be arranged at other positions of the grounding terminal 1000, and the design can be adjusted based on the working conditions, and the effect of the present embodiment can be achieved.

The above embodiment only shows a welding fixation method between the conductive shielding plate 300a, the grounding terminal 1000 and the grounding strip 500. In other embodiments, welding fixation may not be adopted. For example, the conductive shielding plate 300a, the grounding terminal 1000 and the grounding strip 500 may also be fixed by conductive glue, which can also achieve the purpose of stable connection; or other welding fixation methods may be adopted. For example, the stable fixation of the three may be achieved by adding welding parts. For detailed description below, please refer to Figures 7 and 8. Figure 7 is a structural schematic diagram of another embodiment of the terminal group of the present application, and Figure 8 is a cross-sectional structural schematic diagram of the C-C plane in Figure 7.

As shown in Figures 7 and 8, in this embodiment, a first opening 1002 is provided on the grounding area 1001 of each grounding terminal 1000, and the grounding terminal 1000 and the first boss area 301 are correspondingly welded at the first opening 1002 to achieve welding fixation of the grounding terminal 1000 and the conductive shielding plate 300a, thereby ensuring stable contact and firm fixation.

Specifically, in this embodiment, the ground terminal 1000 and the conductive shielding plate 300a can be fixed by welding at the first opening 1002, and the solder 400 is filled in the hole during the welding process to achieve the fixation of the ground terminal 1000 and the conductive shielding plate 300a.

In other embodiments, other welding methods may also be used at the first opening 1002 to fix the ground terminal 1000 and the first boss area 301. For example, a welding part may be pre-set in the first opening 1002. The welding part may be made of a conductive metal material and fixed by welding the welding part to the ground area 1001 and the first boss area 301 respectively.

Based on the welding structure of the above embodiment, when the grounding strip 500 is disposed on the second surface 202, the grounding strip 500 can also be fixed simultaneously. Please refer to Fig. 9, which is a cross-sectional structural diagram of another embodiment of the terminal assembly of the present application.

As shown in Figure 9, a second opening 503 corresponding to the first opening 1002 is provided on the second boss area 501 of the grounding strip 500. In the above embodiment, the solder 400 filled in the first opening 1002 during the welding process can pass through the first opening 1002 and the second opening 503, thereby realizing the welding fixation between the conductive shielding plate 300a, the grounding terminal 1000 and the grounding strip 500.

In other embodiments, a welding piece that passes through the first opening 1002 and the second opening 503 may be preset in the first opening 1002, and the welding piece may be simultaneously welded to the first boss area 301, the grounding terminal 1000, and the grounding strip 500, thereby achieving welding fixation between the conductive shielding plate 300a, the grounding terminal 1000, and the grounding strip 500.

In the above-mentioned embodiments, only one grounding area 1001 is provided on each grounding terminal 1000. In other embodiments, the number of grounding areas 1001 on the grounding terminal 1000 can also be selected based on actual working conditions. For example, grounding areas 1001 can be provided at both ends and in the middle of the grounding fixing section 102a of each grounding terminal 1000, so as to achieve stable fixation of the conductive shielding plate 300a and the grounding strip 500 and stable contact with each grounding terminal 1000.

Please refer to Figures 5, 10 and 11, Figure 10 is a partial enlarged schematic diagram of A in Figure 5, and Figure 11 is a structural schematic diagram of an embodiment of the conductive shielding plate of the present application. In order to achieve multi-point contact between the conductive shielding plate 300a and the grounding terminal 1000, and to facilitate the positioning of the conductive shielding plate 300a during installation, a plurality of opening areas 204 are further provided on the insulator 200a, and the orthographic projection of each opening area 204 on the first surface 201 is covered by the orthographic projection of a grounding terminal 1000 on the first surface 201.

Specifically, the multiple opening areas 204 are divided into several groups, each group corresponds to a grounding terminal 1000, and the multiple opening areas 204 in each group can be evenly arranged along the extension direction of the corresponding grounding terminal 1000, and the surface of the conductive shielding plate 300a can be provided with ridges 303 embedded in the opening areas 204.

The end surface of the ridge 303 can be arranged parallel to the surface of the ground terminal 1000 in the second direction Y, but they do not contact each other. Furthermore, the ground terminal 1000 can also be provided with a third opening 1003 corresponding to the position of the opening area 204, and an elastic arm 1004 can be provided in the third opening 1003, one end of the elastic arm 1004 is connected to the inner wall of the third opening 1003, and the other end of the elastic arm 1004 presses the ridge 303 in the direction from the second surface 202 to the first surface 201, thereby further improving the connection stability of the ground terminal 1000 and the conductive shielding plate 300a. Through the above arrangement, the signal transmission performance can be improved while ensuring the connection stability.

It is understandable that in other embodiments, based on actual working conditions, the end surface of the ridge 303 can be directly contacted and connected to the ground terminal 1000 to ensure the connection stability between the ground terminal 1000 and the conductive shielding plate 300a.

Please refer to Figures 5 and 12, Figure 12 is a schematic cross-sectional view of the structure along the D-D plane in Figure 5. As shown in the figure, in order to further improve the signal transmission speed, a plurality of grounding protrusions 504 are further provided on the side of the grounding strip 500 close to the grounding contact section 101a, and the grounding protrusions 504 are located at the orthographic projection of the grounding terminal 1000 on the grounding strip 500. The grounding protrusions 504 are extended from the side of the grounding strip 500 in a direction pointing to the grounding contact section 101a.

In one embodiment, the extension length of the grounding protrusion 504 in the docking direction Z may be 0.2-1.2 mm, and the spacing between adjacent grounding protrusions 504 may be 1.5-3.5 mm, so that the high transmission rate reaches 56 G.

Further, referring to FIG. 2 and FIG. 12 , in order to improve signal transmission speed, a plurality of shielding protrusions 304 may be provided on a side of the conductive shielding plate 300a close to the ground contact section 101a, and each shielding protrusion 304 is located at the positive projection of the ground terminal 1000 on the conductive shielding plate 300a.

In one embodiment, the extension length of the shielding protrusion 304 in the docking direction Z may be 0.2-2.2 mm, and the spacing between adjacent shielding protrusions 304 may be 0.5-2.5 mm, so that the high transmission rate reaches 56G.

Further, please refer to Figure 12, the grounding contact segment 101a is a cantilever structure extending out of the insulator 200a, which is deformed by the pressure of the docking terminal when in the docking state. In order to support the grounding contact segment 101a and improve the strength, the insulator 200a is further provided with a supporting protrusion 205 that wraps the inner end of the grounding contact segment 101a on the side facing the grounding contact segment 101a.

It is understandable that when the ground contact segment 101a is under pressure in the docking state, the support protrusion 205 can support the ground contact segment 101a on the back of the ground contact segment 101a to improve its strength. Correspondingly, in this embodiment, the side of the insulator 200a can also be provided with a protrusion (not shown in the figure) that wraps the end of the signal contact segment 101A to support the signal contact segment 101A in the docking state.

Considering that the ground terminal 1000 is wider than the signal terminal 2000, the inner end of the ground contact segment 101a is subjected to greater force than the signal contact segment 101A in the docking state. In order to further improve the support for the inner end of the ground contact segment 101a, in this embodiment, the grounding protrusion 504 also extends to the surface of the supporting protrusion 205 to support the end of the ground contact segment 101a.

In other embodiments, the shielding protrusion 304 may also extend to the surface of the supporting protrusion 205 to support the end of the grounding contact segment 101a; or, only the shielding protrusion 304 may extend to the surface of the supporting protrusion 205 to support the end of the grounding contact segment 101a, and the design may be adjusted based on the force direction of the grounding contact segment 101a during actual docking.

Particularly, in some embodiments, the supporting protrusion 205 of the insulator 200a may be located between the shielding protrusion 304 and the grounding protrusion 504, thereby achieving synchronous support of the cantilever structure of the grounding contact segment 101a in two directions.

In some embodiments, when multiple terminal groups 10a are arranged along the second direction Y to form a connector 1a, during docking, the pressure directions of the grounding contact segments 101a of adjacent terminal groups 10a can be opposite, the grounding protrusion 504 of the terminal group 10a on one side can extend to one side surface of the supporting protrusion 205, and the shielding protrusion 304 of the terminal group 10a on the other side can extend to the other side surface of the supporting protrusion 205, thereby achieving docking support for the grounding contact segments 101a of two adjacent terminal groups 10a.

In order to further improve the fixing strength of the structure, please refer to Figures 2 and 13. Figure 13 is a schematic diagram of the cross-sectional structure of the E-E plane in Figure 2.

As shown in the figure, the insulator 200a is also provided with a protrusion 206 extending toward one side of the conductive shielding plate 300a. The protrusion 206 penetrates the conductive shielding plate 300a and is arranged to cooperate with the conductive shielding plate 300a, thereby reinforcing the connection stability between the insulator 200a and the conductive shielding plate 300a in the second direction Y.

In the above embodiments, the first boss area 301 and the second boss area 501 are both complete closed structures, which do not extend to the end. In other embodiments, in order to optimize the layout, the first boss area 301 and the second boss area 501 can also be non-closed structures. Specifically, please refer to Figures 14 to 16. Figure 14 is a structural schematic diagram of another embodiment of the terminal group of the present application, Figure 15 is a structural schematic diagram of the first surface of another embodiment of the insulator of the present application, and Figure 16 is a structural schematic diagram of another embodiment of the conductive shielding plate of the present application.

As shown in Figures 14 to 16, in order to optimize the layout of the first boss area 301, improve space utilization, and improve the signal, in this embodiment, the two first boss areas 301 at the end of the first direction x are non-enclosed structures, which extend to the end of the conductive shielding plate 300 close to the ground contact section 101a, and the two first boss areas 301 are named first notch boss areas 301a; the remaining first boss areas 301 are closed structures. Based on this design, the space at the end of the terminal group 10a and the conductive shielding plate 300a in the first direction x can be saved, which is conducive to production and improves the signal.

Of course, in other implementations, the first notch boss area 301a may not be arranged at the end of the first direction x, and its arrangement position and quantity may be adjusted based on actual needs to reduce the space occupied by a specific area and improve the signal.

In this embodiment, the two first notch boss areas 301a are square structures with one end open. In other embodiments, the structure can also be adjusted based on actual needs. For example, the first notch boss area 301a can also be a half-waist shape, a notched circle, or a notched ellipse, etc., which can achieve the effect of this embodiment. In this embodiment, the first boss area 301 other than the first notch boss area 301a is a closed circular structure. In other embodiments, it can also be adjusted to a square, waist, ellipse, etc., as long as the first boss area 301 and the grounding area 1001 are in close contact, which can achieve the effect of this embodiment.

In this embodiment, in order to optimize the structure of the insulator 200a and maximize the size saving, the insulator 200a includes a protrusion 208 arranged on the side surface close to one end of the ground contact section 101a, and a part of the ground fixing section 102a of a ground terminal 1000 is fixed by the protrusion 208. In order to arrange welding points in the protrusion 208 with limited space, in this embodiment, a first notch boss area 301a is arranged at a position of the conductive shielding plate 300 corresponding to the protrusion 208.

In order to optimize the layout, the first boss areas 301 in this embodiment can be arranged one-to-one with the shielding protrusions 304, at least part of each first boss area 301 is arranged at the corresponding shielding protrusion 304, and the first notch boss area 301a extends to the end of the corresponding shielding protrusion 304 close to the grounding contact section 101a.

Further, please refer to Figures 17 to 19, Figure 17 is a structural schematic diagram of another perspective of another embodiment of the terminal group of the present application, Figure 18 is a second surface structural schematic diagram of another embodiment of the insulator of the present application, and Figure 19 is a structural schematic diagram of another embodiment of the grounding strip of the present application.

As shown in FIGS. 17 to 19, in order to optimize the layout of the second boss area 501, improve space utilization, and improve the signal, in this embodiment, a second boss area 501 at the end of the first direction x is a non-enclosed structure, which extends to the end of the grounding strip 500 close to the grounding contact section 101a, and the second boss area 501 is named the second notch boss area 501a; the remaining second boss areas 501 are closed structures. Based on this design, the space of the terminal group and the end of the grounding strip in the first direction can be saved, which is conducive to production and improves the signal.

Of course, in other implementations, the second notch boss area 501a may not be arranged at the end of the first direction x, and its arrangement position and quantity may be adjusted based on actual needs to reduce the space occupied by a specific area and improve the signal.

Similar to the first boss area 301 and the first notch boss area 301a, the shapes of the second boss area 501 and the second notch boss area 501a are not limited. The second boss area 501 can be circular, square, waist-shaped, elliptical, etc., and the second notch boss area 501 can be square, half-waist-shaped, notched circular or notched elliptical, etc., all of which can achieve the effect of this embodiment.

In order to arrange welding points in the protruding portion 208 with limited space, in this embodiment, the second notch boss area 501 a is arranged at a position corresponding to the grounding strip 500 and the protruding portion 208 .

In order to optimize the layout, the second boss areas 501 in this embodiment can be arranged one-to-one with the grounding protrusions 504, at least part of each second boss area 501 is arranged at the corresponding grounding protrusion 504, and the second notch boss area 501a extends to the end of the corresponding grounding protrusion 504 close to the grounding contact section 101a.

In order to further improve the positioning accuracy and fixing strength of the grounding strip 500 and facilitate the assembly of the grounding strip 500, please refer to FIG. 20, which is a schematic diagram of the assembly structure of the insulator and the grounding strip in another embodiment of the terminal assembly of the present application.

As shown in FIG. 20 , a fixing column 207 is disposed on the second surface 202 of the insulator 200 a , and a fixing hole 505 matching the fixing column 207 is arranged on the grounding strip 500 .

The fixing column 207 is disposed through the fixing hole 505 of the grounding bar 500 , thereby reinforcing the connection stability between the insulator 200 a and the grounding bar 500 .

In this embodiment, the fixing holes 505 are arranged at both ends of the grounding strip 500. In other embodiments, the positions and the number of the fixing holes 505 can also be adjusted based on actual needs, and the effect of this embodiment can be achieved.

In one embodiment, in order to further improve signal crosstalk, the width of the signal contact section 101A of the signal terminal 2000 is not kept constant. Please refer to FIG. 21, which is a schematic structural diagram of an embodiment of the signal terminal of the present application. As shown in the figure, the signal contact section 101A of the signal terminal 2000 includes an extension portion 1021A and a contact portion 1022A sequentially arranged in a direction away from the signal fixed section 102A, and the width CD of the contact portion 1022A is greater than the width AB of the extension portion 1021A to improve signal crosstalk.

The above embodiment only takes connector 1a as an example to elaborate in detail a terminal group structure that can effectively improve the grounding effect and signal transmission speed, wherein the terminal group structure of the docking connector 1b can be the same as or different from the terminal group structure of connector 1a, and both can achieve the effect of this embodiment.

Claims (20)

A terminal group, characterized by comprising: A plurality of grounding terminals are arranged in an interval arrangement along a first direction, each of the grounding terminals comprises a grounding contact section and a grounding fixing section which are arranged in sequence, and at least one grounding area is arranged on the grounding fixing section of each grounding terminal; an insulator, wherein the grounding fixing section is fixed inside the insulator, the insulator comprises a first surface and a second surface disposed opposite to each other, and the insulator is provided with a hollow area exposing the grounding area; A conductive shielding plate is arranged on the first surface, and a first boss area embedded in each of the hollow areas is provided on the side of the conductive shielding plate facing the first surface, and the first boss area is tightly fitted and fixed to the corresponding grounding area; A grounding strip, extending along the first direction and arranged on the second surface, and the grounding strip is provided with a second boss area embedded in each of the hollow areas, and the second boss area is tightly fitted and fixed to the corresponding grounding area; Wherein, at least one of the grounding areas of each of the grounding terminals is arranged at an end of the grounding fixing section close to the grounding contact section, the grounding strip is arranged on the second surface close to one end of the grounding contact section, and at least one grounding protrusion is provided on a side surface of the grounding strip close to the grounding contact section, the grounding protrusion is located at the positive projection of the grounding terminal on the grounding strip, and the grounding protrusion is extended from the side surface of the grounding strip in a direction pointing to the grounding contact section; The conductive shielding plate is provided with at least one shielding protrusion on a side close to the grounding contact section. The shielding protrusion is located at the positive projection of the grounding terminal on the conductive shielding plate and extends from the side of the conductive shielding plate in a direction pointing to the grounding contact section. The terminal group according to claim 1, characterized in that the first boss area is fixed to the grounding area by welding, and/or the second boss area is fixed to the grounding area by welding. The terminal group according to claim 2 is characterized in that the first boss area is fixed to the grounding area by laser welding, and the second boss area is fixed to the grounding area by laser welding. The terminal group according to claim 2 is characterized in that the grounding area is provided with a first opening, the second boss area is provided with a second opening corresponding to the first opening, and the first boss area, the grounding area and the second boss area are fixed by welding parts arranged in the first opening and the second opening. The terminal group according to claim 1 is characterized in that a first recessed area corresponding to the first boss area is provided on a side of the conductive shielding plate facing away from the first surface to mark the position of the first boss area. The terminal group according to claim 1, characterized in that a second recessed area corresponding to the second boss area is provided on a side of the grounding strip facing away from the second surface to mark the position of the second boss area. The terminal group according to claim 1 is characterized in that a plurality of opening areas are provided on the insulator, and the orthographic projection of each of the opening areas on the first surface is covered by the orthographic projection of a grounding terminal on the first surface, and the surface of the conductive shielding plate is provided with a protrusion embedded in the opening area, and the end face of the protrusion is in contact with the grounding terminal. The terminal group according to claim 7 is characterized in that a third opening is provided at a position corresponding to the grounding terminal and the opening area, and an elastic arm is provided inside the third opening, one end of the elastic arm is connected to the inner wall of the third opening, and the other end presses the protrusion in a direction from the second surface to the first surface. The terminal group according to claim 1 is characterized in that a supporting protrusion wrapped around the inner end of the grounding contact section is provided on one side of the insulator close to the grounding contact section, and the grounding protrusion and/or the shielding protrusion extend to the surface of the supporting protrusion. The terminal group according to claim 1 is characterized in that it also includes a plurality of signal terminals, wherein the plurality of signal terminals are arranged in an interval arrangement along the first direction, the signal terminals are arranged between adjacent ground terminals, and include a signal fixing section held in the insulator and a signal contact section extending out of the insulator, the signal contact section includes an extension portion and a contact portion sequentially arranged in a direction away from the signal fixing section, and the width of the contact portion is greater than that of the extension portion. The terminal group according to claim 1, characterized in that the plurality of second boss areas include at least one second notch boss area, and the second notch boss area extends to an end of the grounding strip close to the grounding contact section. The terminal group according to claim 11 is characterized in that the grounding protrusion corresponds to the second boss area one by one, at least a portion of the second boss area is arranged at the corresponding grounding protrusion, and the second notch boss area extends to the corresponding grounding protrusion part close to one end of the grounding contact section. The terminal group according to claim 11, characterized in that the second notch boss area is half-waisted, square, notched circular or notched elliptical. The terminal group according to claim 11, characterized in that the second notch boss area is arranged at the first direction end of the grounding strip. The terminal group according to claim 1, characterized in that the plurality of first boss areas include at least one first notch boss area, and the first notch boss area extends to an end of the conductive shielding plate close to the ground contact section. The terminal group according to claim 15 is characterized in that the shielding protrusion corresponds to the first boss area one by one, at least a portion of the first boss area is arranged at the corresponding shielding protrusion, and the first notch boss area extends to the corresponding shielding protrusion close to one end of the grounding contact section. The terminal group according to claim 15, characterized in that the first notched boss area is half-waisted, square, notched circular or notched elliptical. The terminal group according to claim 15 is characterized in that the first notch boss area is arranged at the first direction end of the conductive shielding plate. The terminal group according to claim 1 is characterized in that fixing columns are arranged on the first surface and/or the second surface of the insulator, and fixing holes matching the fixing columns are arranged on the conductive shielding plate and/or the grounding strip. A terminal group, characterized by comprising: A plurality of grounding terminals are arranged in an interval arrangement along a first direction, each of the grounding terminals comprises a grounding contact section and a grounding fixing section which are arranged in sequence, and at least one grounding area is arranged on the grounding fixing section of each grounding terminal; an insulator, wherein the grounding fixing section is fixed inside the insulator, the insulator comprises a first surface and a second surface disposed opposite to each other, and the insulator is provided with a hollow area exposing the grounding area; A conductive shielding plate is arranged on the first surface. A first boss area embedded in each hollow area is provided on the side of the conductive shielding plate facing the first surface. The first boss area is tightly fitted and fixed to the corresponding grounding area.