TWM550921U - High-speed connector and transmission module thereof - Google Patents

Description

High speed connector and its transmission module

The present invention relates to a connector, and more particularly to a high speed connector and a transmission module thereof.

Existing high speed connectors typically connect several ground terminals with a ground lug to reduce insertion loss and crosstalk interference. Wherein, the existing grounding piece is composed of a main body and a plurality of elastic arms extending from the main body, and the elastic arms are mostly integrally stamped with the main body in the form of a cantilever beam. However, the structural strength of the existing grounding piece is not high, and the existing grounding piece is not used to shield the differential signal terminal in the high-speed connector, so the existing grounding piece also has a space that can be further improved, so as to facilitate the upgrading of the existing high-speed connector. Performance.

Therefore, the creator believes that the above defects can be improved, and he has devoted himself to research and cooperates with the application of scientific principles, and finally proposed a creation that is reasonable in design and effective in improving the above defects.

The present invention provides a high-speed connector and a transmission module thereof, which can effectively improve defects that may occur in the existing high-speed connector.

The present invention discloses a high-speed connector, comprising: a casing; an insulating rubber core inserted in the casing; and a plurality of first conductive terminals fixed to the insulating rubber core and arranged along a width direction. And the plurality of the first conductive terminals are substantially located in the housing; wherein the plurality of the first conductive terminals comprise two differential signal terminals and two ground terminals, and the two ground terminals are respectively located at two The opposite two outer sides of the differential signal terminal; a plurality of second conductive terminals fixed to the insulation The rubber cores are arranged along the width direction, and a plurality of the second conductive terminals are substantially located in the housing, and a length of each of the second conductive terminals is not greater than a length of each of the first conductive terminals; And a shielding member comprising: a substrate detachably assembled to the housing; and a metal plating layer plated on the substrate and contacting the two ground terminals to make the two grounds The terminals are electrically connected by the metal plating layer; wherein the metal plating layer is located on opposite outer sides of the two differential signal terminals, so that the metal plating layer can have two of the differences in the width direction The signal terminals are shielded.

The present invention also discloses a transmission module of a high-speed connector, comprising: an insulating rubber core; two differential signal terminals and two grounding terminals fixed to the insulating rubber core and arranged along a width direction, and two The grounding terminals are respectively located on opposite outer sides of the two differential signal terminals; and a shielding member comprises: a substrate; and a metal plating layer plated on the substrate and contacting the two grounding layers a terminal, wherein the two ground terminals are electrically connected through the metal plating layer; wherein the metal plating layer is located on opposite outer sides of the two differential signal terminals, so that the metal plating layer can be The two differential signal terminals are shielded in the width direction.

In summary, the high-speed connector and the transmission module disclosed in the embodiments of the present invention shield the differential signal terminals by the metal plating of the shielding member, thereby effectively lifting the high-speed connector (or the transmission module). Group) signal transmission quality and performance. Furthermore, in the high-speed connector and the transmission module disclosed in the embodiments of the present invention, the shielding member is plated on the substrate with high structural strength by metal plating, so that the substrate can support the metal plating layer, so that the metal plating layer is more Not easy to deform.

In order to further understand the features and technical contents of this creation, please refer to the following detailed description and drawings regarding the creation, but these descriptions and drawings are only used to illustrate the creation, and not to the scope of protection of this creation. limit.

100‧‧‧High speed connector

1‧‧‧shell

11‧‧‧ Body Department

111‧‧‧Docking channel

112‧‧‧Terminal slot

113‧‧‧Interface

114‧‧‧Installation slot

12‧‧‧ Positioning film

2‧‧‧Insulating rubber core

21‧‧‧First core

211‧‧‧ concave structure

212‧‧‧ gap

22‧‧‧Second core

221‧‧‧With structure

3‧‧‧First conductive terminal

3S‧‧‧Differential signal terminal

3G‧‧‧ Grounding terminal

31‧‧‧First buried section

311‧‧‧External Department

32‧‧‧First contact segment

33‧‧‧First installation section

331‧‧‧ turning corner

4‧‧‧Second conductive terminal

41‧‧‧Second buried section

42‧‧‧Second contact

43‧‧‧Second installation section

5‧‧‧Shields (eg laser direct forming shields)

51‧‧‧Substrate

511‧‧‧ base

512‧‧‧Isolation Department

513‧‧‧ protruding parts

514‧‧‧ hook

515‧‧‧ Grooved structure

52‧‧‧Metal plating

521‧‧ ‧Mask

522‧‧‧Apartment

523‧‧‧ tandem

L‧‧‧ Length direction

W‧‧‧Width direction

H‧‧‧ Height direction

FIG. 1 is a perspective view of the high speed connector of the present invention.

Figure 2 is an exploded perspective view of Figure 1.

3 is an exploded perspective view of another perspective of FIG. 1.

Figure 4 is a cross-sectional view taken along line IV-IV of Figure 1.

Figure 5 is a cross-sectional view of Figure 4 taken along line V-V.

Fig. 6 is an enlarged schematic view showing a portion VI of Fig. 5.

Figure 7 is a cross-sectional view of Figure 4 taken along line VII-VII.

Figure 8 is an enlarged schematic view of a portion VIII of Figure 7.

Figure 9 is a cross-sectional view of Figure 4 taken along line IX-IX.

Figure 10 is a perspective view of the shield of the high speed connector of the present invention.

Figure 11 is an exploded perspective view of Figure 10.

Please refer to FIG. 1 to FIG. 11 for the embodiment of the present invention. It should be noted that the related quantity and appearance mentioned in the embodiment are only used to specifically describe the implementation manner of the present invention. To understand the content of this creation, not to limit the scope of this creation.

As shown in FIG. 1 to FIG. 3, the present embodiment discloses a high-speed connector 100, and the high-speed connector 100 of the present embodiment is described by taking a right angle connector as an example, but the creation is not limited. herein. That is to say, the high speed connector 100 of the present creation can also be a vertical connector. The high-speed connector 100 includes a casing 1 , an insulating rubber core 2 inserted in the casing 1 , a plurality of first conductive terminals 3 fixed to the insulating rubber core 2 and a plurality of second conductive materials. The terminal 4 and a shield 5 mounted on the housing 1 are provided. Hereinafter, the respective components of the high-speed connector 100 will be described separately, and then the connection relationship between the components will be introduced as appropriate.

As shown in FIG. 2 to FIG. 4, the housing 1 is defined for convenience of description of the embodiment. There are a width direction W, a length direction L, and a height direction H which are perpendicular to each other. The housing 1 has a body portion 11 and two positioning pieces 12 extending from opposite sides of the rear end of the body portion 11, respectively. The main body portion 11 defines a plug-in channel 111 and two rows of terminal slots 112 connected to the plug-in channel 111, and the two rows of terminal slots 112 are respectively located above and below the plug-in channel 111, and each row of terminals The grooves 112 are arranged along the width direction W of the casing 1. The front end of the body portion 11 is formed with a socket 113, and the end of the body portion 11 is formed with a mounting slot 114, and the socket 113 and the mounting slot 114 are respectively located at the front side and the rear side of the insertion channel 111 and communicate with the above The channel 111 is plugged.

As shown in FIG. 2 to FIG. 4, the insulating rubber core 2 is inserted into the housing 1 and the insulating rubber core 2 of the embodiment is inserted into the mounting groove 114 of the housing 1 to serve as the plug. The boundary of the channel 111 is connected, but is not limited thereto. The insulating rubber core 2 includes a first rubber core 21 and a second rubber core 22, and the first rubber core 21 is formed with a plurality of concave and convex structures 211, and the second rubber core 22 is formed with a plurality of In the mating structure 221 , the first rubber core 21 is detachably inserted into the plurality of mating structures 221 by a plurality of concave-convex structures 211 and fixed to the second rubber core 22 .

In addition, although the insulating rubber core 2 of the present embodiment is described by the first rubber core 21 and the second rubber core 22 which are assembled to each other, the structure of the insulating rubber core 2 can also be designed according to the design. The needs of the person are changed without being limited by the embodiment. For example, in an embodiment not shown in the present creation, the insulating rubber core 2 may also be an integrally formed one-piece construction.

As shown in FIG. 2 and FIG. 4, the plurality of first conductive terminals 3 are arranged along the width direction W and are fixed to the first rubber core 21, and the plurality of first conductive terminals 3 are substantially located in the housing 1. Inside. Each of the first conductive terminals 3 has a first embedded section 31 embedded in the insulating rubber core 2 (the first rubber core 21), and the first embedded section 31 faces the plug interface 113. Extending a first contact segment 32, and The first embedded section 31 faces a first mounting section 33 extending away from the insertion interface 113. That is, the plurality of first contact segments 32 are located in the upper row of terminal slots 112 of the body portion 11, and a portion of each of the first contact segments 32 is located in the plug channel 111, and the first mounting segment 33 It is located between the two positioning pieces 12 described above. In more detail, each of the first mounting sections 33 is formed with a corner angle 331 after extending from the first embedded section 31 in the longitudinal direction L perpendicular to the width direction W.

To be different, as shown in FIG. 5 to FIG. 9, when the functions of the first conductive terminals 3 are distinguished, the plurality of first conductive terminals 3 include a plurality of pairs of differential signal terminals 3S and more. The ground terminal 3G and the plurality of pairs of differential signal terminals 3S and the plurality of ground terminals 3G are arranged substantially in a bilaterally symmetric manner in this embodiment. The insulating rubber core 2 (such as the first rubber core 21) is formed with a plurality of notches 212 (such as FIG. 2 or FIG. 9), and a part of the plurality of grounding terminals 3G (eg, the first embedded section 31). The rear end portions are exposed from the plurality of notches 212 and are exposed outside the insulating rubber core 2, and each is defined as an outer connecting portion 311.

Therefore, since the external portion 311 is embedded in the insulating rubber core 2 having a high structural strength (for example, the first rubber core 21), the insulating rubber core 2 can support the external portion 311 of the grounding terminal 3G, so that when the external portion 311 is externally connected When the portion 311 abuts against another member (for example, the shield member 5), the external portion 311 is less likely to be deformed, and the external portion 311 can maintain a stable connection relationship with the member that abuts.

As shown in FIG. 2 and FIG. 4, the plurality of second conductive terminals 4 are arranged along the width direction W and fixed to the second core 22, and the plurality of second conductive terminals 4 are substantially located in the housing 1. The length of each of the second conductive terminals 4 is not greater than the length of each of the first conductive terminals 3. Each of the second conductive terminals 4 has a second embedded section 41 embedded in the insulating core 2 (the second core 22), and the second embedded section 41 faces the plug interface 113. An extended second contact section 42 and a second mounting section 43 extending from the second embedded section 41 away from the insertion interface 113. That is, the plurality of second contact segments 42 are located in the body portion 11 The lower row of terminal slots 112, and a portion of each of the second contact segments 42 is located in the insertion channel 111, and the second mounting segment 43 is located between the two positioning tabs 12.

Further, the length of the second buried section 41 and the second contact section 42 of each second conductive terminal 4 in this embodiment is substantially equal to the first embedded section 31 of each first conductive terminal 3 and the first The length of the contact segment 32 is different, and the length of the second mounting segment 43 of each second conductive terminal 4 is less than the length of the first mounting segment 33 of each of the first conductive terminals 3.

To be different, as shown in FIG. 5 to FIG. 9 , when the functions or uses of the second conductive terminals 4 are distinguished, the plurality of second conductive terminals 4 include a plurality of pairs of differential signal terminals (in the figure). Not shown) and a plurality of ground terminals (not shown), and the differential signal terminals and the ground terminals of the plurality of second conductive terminals 4 are arranged substantially in the same manner as the differential signal terminals of the plurality of first conductive terminals 3 The arrangement of 3S and ground terminal 3G.

As shown in FIG. 2, FIG. 4, FIG. 10, and FIG. 11, the shielding member 5 is further limited to a laser direct forming (LDS) shielding member 5 in this embodiment, but the present invention is not limited thereto. The shielding member 5 includes a substrate 51 and a metal plating layer 52 plated on the surface of the substrate 51, and the metal plating layer 52 contacts at least two ground terminals 3G of the plurality of first conductive terminals 3, The at least two ground terminals 3G can be electrically connected to each other through the metal plating layer 52. Thereby, the shield member 5 is plated on the base material 51 having a high structural strength by the metal plating layer 52, so that the base material 51 can support the metal plating layer 52, so that the metal plating layer 52 is less likely to be deformed.

It should be noted that the substrate 51 in this embodiment refers to the LDS plastic, that is, the portion of the LDS shield 5 that is not subjected to laser structuring and activation and electroless plating, so the substrate 51 is retained. Insulation properties. However, in the embodiment not shown in the present creation, the substrate 51 may also be a common plastic (that is, a plastic not used for LDS technology). Furthermore, the substrate 51 in this embodiment is wide The thickness in the direction W is preferably greater than the thickness of the metal plating 52, but the present invention is not limited thereto.

The base material 51 is detachably assembled to the housing 1 described above, and the base material 51 of the present embodiment includes a base portion 511, a plurality of partition portions 512, a plurality of protruding portions 513, and two hooks 514. The base portion 511 is an integrally formed structure having a substantially flat shape. Each of the partition portions 512 is substantially flat and vertically connected to the bottom surface of the base portion 511. The plurality of protruding portions 513 are connected to the front end edge of the base portion 511 and/or the above. A plurality of spacers 512, and two hooks 514 are respectively connected to opposite side edges of the base 511.

The metal plating layer 52 includes a plurality of shielding portions 521 , a plurality of abutting portions 522 respectively adjacent to the plurality of shielding portions 521 , and a connecting portion 523 , and the series connecting portions 523 shield the plurality of shielding portions 523 The portion 521 is electrically connected to the plurality of abutting portions 522. The plurality of shielding portions 521 are respectively plated on the plurality of partition portions 512 , and the plurality of the abutting portions 522 are respectively plated on the plurality of protruding portions 513 , and the tandem portions 523 are plated on the base portion 511 and The plurality of shielding portions 521 and the plurality of abutting portions 522 are connected. It should be noted that the metal plating layer 52 in this embodiment is located in a groove-like structure 515 of the above-mentioned substrate 51, but the creation is not limited thereto.

The substrate 51 is fastened to the two positioning pieces 12 of the housing 1 by the two hooks 514 thereof, and the positions of the plurality of partitions 512 respectively correspond to the plurality of grounding terminals 3G, and the plurality of the base materials 51 are The protruding portions 513 are respectively received in the plurality of notches 212 of the first rubber core 21 so that the plurality of abutting portions 522 respectively abut against the outer connecting portions 311 of the plurality of grounding terminals 3G. Therefore, since the abutting portion 522 is plated on the protruding portion 513 having a high structural strength, the protruding portion 513 can support the abutting portion 522 of the metal plating layer 52 such that when the abutting portion 522 and the outer connecting portion 311 are mutually At the time of the abutment, the abutting portion 522 is less likely to be deformed, and a stable connection relationship can be maintained between the abutting portion 522 and the external portion.

Furthermore, due to the plurality of pairs of differential signal terminals 3S of the plurality of first conductive terminals 3 The plurality of grounding terminals 3G are arranged substantially symmetrically in the left-right direction in the present embodiment, and the shielding member is also substantially bilaterally symmetrical. Therefore, in order to facilitate the understanding of the present embodiment, the following description relates to the first conductive terminal 3 and the shielding member 5. The connection relationship between the two is mainly related to two differential signal terminals 3S on the far right side (or the leftmost side of FIG. 7) in FIG. 5, and two ground terminals respectively located on opposite outer sides of the two differential signal terminals 3S. 3G, and related structures of the shield 5 (such as two partitions 512, two protrusions 513 in FIG. 6 or FIG. 8 , and two partitions 512 and two protrusions 513 Metal plating 52 parts).

In more detail, as shown in FIG. 6, FIG. 8, and FIG. 9, the two isolation portions 512 are respectively located on opposite sides of the two ground terminals 3G (eg, two outer sides), and the two shielding portions 521 respectively The two isolation portions 512 are adjacent to the grounding terminal 3G (for example, the two shielding portions 521 in FIG. 8 are respectively plated on the surfaces of the two isolation portions 512 facing each other), and the two abutting portions 522 are respectively disposed. The two abutting portions 522 can be respectively respectively abutted on the two protrusions 513 when the two protrusions 513 are respectively received in the corresponding two notches 212. The external portion 311 of the ground terminal 3G.

Furthermore, the two shield portions 521 of the metal plating layer 52 are located on opposite outer sides of the two differential signal terminals 3S, so that the metal plating layer 52 can face the two differentials in the width direction W. The signal terminal 3S is shielded. Wherein, the two shielding portions 521 of the metal plating layer can shield at least 25% of the first mounting segments 33 of the two differential signal terminals 3S adjacent to the insulating rubber core 2 in the width direction W. Preferably, the two shield portions 521 of the metal plating layer can completely shield each of the differential signal terminals 3S between the insulating rubber core 2 and the corner 331 in the width direction W, but this creation Not limited to this.

Thereby, the shielding member 5 shields the differential signal terminal 3S through the metal plating layer 52 to effectively improve the signal transmission quality and performance of the high speed connector 100 of the embodiment.

It should be noted that, in this embodiment, the shielding portion 521 is plated on the adjacent ground end. The surface of the isolation portion 512 of the sub- 3G is described as a description for the case where the distance between any two first conductive terminals 3 is small, thereby preventing the shield portion 521 from contacting the adjacent differential signal terminal 3S, but this creation does not Limited by this. For example, in an embodiment not shown in the present writing, when the distance between any two first conductive terminals 3 is large, the opposite surfaces of the partition portion 512 may also be plated with the above shielding. Part 521.

In addition, the insulating rubber core 2 (such as the first rubber core 21) and the plurality of first conductive terminals 3 in the embodiment (such as the leftmost two differential signal terminals 3S and the two ground terminals 3G in FIG. 7) And the shielding member 5 (for example, the portion of the shielding member 5 corresponding to the two differential signal terminals 3S and the two ground terminals 3G) may be collectively referred to as a transmission module of the high-speed connector 100, and the components of the transmission module are matched The configuration and the configuration are not limited to the description in the embodiment. That is to say, in the embodiment not shown in the present creation, the transmission module can also be applied to other high speed connectors.

[Technical effect of the present creative embodiment]

In summary, the high-speed connector and the transmission module disclosed in the embodiments of the present invention shield the differential signal terminals by the metal plating of the shielding member, thereby effectively lifting the high-speed connector (or the transmission module). Signal transmission quality and performance.

Furthermore, the shielding member disclosed in the embodiment of the present invention is plated on the substrate with high structural strength by metal plating to enable the substrate to support the metal plating layer, so that the metal plating layer is less likely to be deformed.

Further, since the external portion is embedded in an insulating core body having a high structural strength (for example, a first rubber core), the insulating core body can support an external portion of the ground terminal; since the abutting portion is plated on Since the projection has a high structural strength, the projection can support the abutting portion of the metal plating. Therefore, when the abutting portion and the outer connecting portion abut each other, the abutting portion and the outer connecting portion are less likely to be deformed, and the abutting portion is externally connected. A stable connection can be maintained between the departments.

The above descriptions are only the preferred and feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of protection of the claims of the present invention. .

100‧‧‧High speed connector

1‧‧‧shell

111‧‧‧Docking channel

112‧‧‧Terminal slot

113‧‧‧Interface

114‧‧‧Installation slot

2‧‧‧Insulating rubber core

21‧‧‧First core

212‧‧‧ gap

22‧‧‧Second core

3‧‧‧First conductive terminal

31‧‧‧First buried section

311‧‧‧External Department

32‧‧‧First contact segment

33‧‧‧First installation section

331‧‧‧ turning corner

4‧‧‧Second conductive terminal

41‧‧‧Second buried section

42‧‧‧Second contact

43‧‧‧Second installation section

5‧‧‧Shields (eg laser direct forming shields)

52‧‧‧Metal plating

521‧‧ ‧Mask

522‧‧‧Apartment

523‧‧‧ tandem

L‧‧‧ Length direction

H‧‧‧ Height direction

Claims (10)

A high-speed connector includes: a casing; an insulating rubber core inserted in the casing; a plurality of first conductive terminals fixed to the insulating rubber core and arranged along a width direction, and the plurality of The first conductive terminal is substantially located in the housing; wherein the plurality of first conductive terminals comprise two differential signal terminals and two ground terminals, and the two ground terminals are respectively located at two of the differential signal terminals a plurality of outer sides; a plurality of second conductive terminals fixed to the insulating core and arranged along the width direction, and a plurality of the second conductive terminals are substantially located in the housing, and each of the second The length of the conductive terminal is not greater than the length of each of the first conductive terminals; and a shield comprising: a substrate detachably assembled to the housing; and a metal plating layer plated on the base And contacting the two ground terminals such that the two ground terminals are electrically connected by the metal plating; wherein the metal plating is located on opposite outer sides of the two differential signal terminals, so that Said metal plating layer can be of two differential signal terminals of the shield in the width direction. The high speed connector of claim 1, wherein the substrate comprises a base and two partitions connected to the base, and the two partitions are respectively located on opposite sides of the two ground terminals And a part of the metal plating is plated on the surfaces of the two partitions adjacent to the two ground terminals. The high-speed connector of claim 2, wherein the insulating rubber core is formed with two notches, and portions of the two grounding terminals are exposed from the two notches and are exposed outside the insulating rubber core, And each is defined as an external portion; the substrate comprises two protrusions, and the metal plating layer comprises two shielding portions, respectively Two abutting portions adjacent to the two shielding portions and a connecting portion, and the connecting portion electrically connects the two shielding portions with the two abutting portions, two The shielding portions are respectively plated on the surfaces of the two partition portions facing each other, and the two abutting portions are respectively plated on the two protruding portions, and the two protruding portions are respectively accommodated. And the two of the abutting portions respectively abut against the two outer portions of the two ground terminals. The high-speed connector of claim 1, wherein the housing is formed with a plug-in interface, and each of the first conductive terminals has a first embedded section embedded in the insulating rubber core. a first contact segment extending toward the insertion interface, and a first mounting segment extending from the first embedded segment away from the insertion interface; the metal plating layer can be Illustrating at least 25% of the two first mounting segments adjacent to the two differential signal terminals of the insulating core in the width direction. The high speed connector of claim 4, wherein each of the first mounting segments forms a corner angle after extending from the first embedded section in a length direction perpendicular to the width direction, and The metal plating layer can completely shield a portion of each of the differential signal terminals between the insulating core and the corner of the corner in the width direction. The high speed connector of claim 4, wherein each of the second conductive terminals has a second embedded section embedded in the insulating rubber core, and the second buried section faces the a second contact segment extending from the insertion interface, and a second mounting segment extending from the second embedded segment away from the insertion interface; the second embedded segment of each of the second conductive terminals The length of the second contact segment is substantially equal to the length of the first embedded segment and the first contact segment of each of the first conductive terminals, and the first of each of the second conductive terminals The length of the two mounting segments is less than the length of the first mounting segment of each of the first conductive terminals. The high-speed connector of any one of claims 1 to 6, wherein the insulating rubber core comprises a first rubber core and a second rubber core, and the plurality of the first conductive terminals Fixed to the first rubber core, a plurality of the second conductive terminals are fixed to the second rubber core, and the first rubber core is formed with a plurality of concave and convex structures, and the second rubber core is formed with a plurality of In the mating structure, the first rubber core is detachably inserted into the plurality of the mating structures by a plurality of the concave-convex structures, and is fixed to the second rubber core. The high speed connector of any one of claims 1 to 6, wherein the shield is further defined as a laser direct forming (LDS) shield, and the metal plating is located in a recess of the substrate Inside the trough structure. A transmission module of a high-speed connector includes: an insulating rubber core; two differential signal terminals and two grounding terminals fixed to the insulating rubber core and arranged along a width direction, and two of the grounding terminals are respectively located Two opposite outer sides of the two differential signal terminals; and a shield comprising: a substrate; and a metal plating layer plated on the substrate and contacting the two ground terminals to enable two The grounding terminal is electrically connected by the metal plating layer; wherein the metal plating layer is located on opposite outer sides of the two differential signal terminals, so that the metal plating layer can have two opposite sides in the width direction The differential signal terminals are shielded. The transmission module of the high speed connector of claim 9, wherein the shielding member is further defined as a laser direct forming shield, and the metal plating layer is located in a groove-like structure of the substrate; The insulating rubber core is formed with two notches, and portions of the two grounding terminals are respectively exposed from the two notches and are exposed outside the insulating rubber core, and each is defined as an external portion; the substrate comprises a base portion, two partition portions connected to the base portion, and two protrusion portions connected to the base portion, two of the partition portions being respectively located on opposite outer sides of the two ground terminals, and two The protruding portions are respectively accommodated in the two notches; the metal plating layer includes two shielding portions, and two adjacent portions respectively disposed adjacent to the two shielding portions a connecting portion and a series of connecting portions, wherein the connecting portion electrically connects the two shielding portions with the two abutting portions, and the two shielding portions are respectively plated adjacent to the two Two of the abutting portions are respectively plated on the two of the protruding portions on the surface of the two isolated portions of the grounding terminal, and the two abutting portions respectively abut against the two grounding terminals Two of the outer ends.