Electric connector

Abstract

The present application relates to an electrical connector, such as a network connector. An electric connector according to the present application comprises: an outer shell; the inner shell module is used for being installed in the outer shell, the inner shell module comprises an inner plastic shell and a signal terminal installed in the inner plastic shell, the inner shell module comprises an electrical shielding structure, the electrical shielding structure comprises a first shielding piece and a second shielding piece, and the first shielding piece and the second shielding piece are arranged in the inner plastic shell. The first shielding piece is used for being installed on the first side of the inner plastic shell, the second shielding piece is used for being installed on the second side of the inner plastic shell, the second side is opposite to the first side, and the first shielding piece and the second shielding piece are constructed to provide complete shielding on the first side and the second side of the inner plastic shell.

Description

[0001] This application claims priority to Chinese patent application No. 202411376620.5, filed on September 29, 2024, entitled "Female Connector", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electrical connector technology, and more particularly to an electrical connector, especially a network connector with an improved electrical shielding structure. Background Technology

[0003] Modern vehicles are equipped with an increasing number of in-vehicle electronic devices. These devices provide functions such as sensing, control, and input / output, enabling advanced functions such as consumer electronics, navigation control, and autonomous driving feedback control. To facilitate data communication between individual in-vehicle electronic components, a data network is established between these components using communication protocols such as Ethernet. This data network can achieve data rates of 100 Mb / s or even higher. The connectors used for this in-vehicle data network are called in-vehicle network connectors or vehicle network connectors.

[0004] Some high-speed network connectors incorporate electrical shielding structures to ensure signal integrity and interference immunity. The signal terminals are housed within an inner plastic shell, while the conductive shielding structure is located on the outside. The inner shell module, composed of the inner plastic shell and the conductive shielding structure, is then installed into the outer shell. However, due to space constraints, existing high-speed network connectors feature relatively simple electrical shielding designs with insufficient overall coverage and numerous noticeable gaps, resulting in partial exposure of signal conductors. This leads to suboptimal shielding effectiveness in current designs. Summary of the Invention

[0005] The purpose of this application is to provide an electrical connector with an improved electrical shielding structure, wherein a novel electrical shielding structure is used to surround the inner plastic shell, thereby achieving a better shielding effect.

[0006] According to a first aspect of this application, an electrical connector is provided, comprising: a housing; and an inner housing module for mounting to the housing, the inner housing module including an inner plastic shell and signal terminals mounted in the inner plastic shell, and including an electrical shielding structure, wherein the electrical shielding structure includes a first shielding member and a second shielding member, the first shielding member being mounted to a first side of the inner plastic shell, and the second shielding member being mounted to a second side of the inner plastic shell, the second side being opposite to the first side, wherein the first shielding member and the second shielding member are configured to provide complete shielding on the first side and the second side of the inner plastic shell.

[0007] In the above-described implementation of the electrical connector, optionally, the second shield is a lower shield including a wire end, and the first shield is an upper shield contained within the lower shield.

[0008] In the above-described implementation of the electrical connector, optionally, the first shielding component is an upper shielding component, and the second shielding component is a lower shielding component including a wire clamping end. The upper shielding component includes an upper shielding plate, and the lower shielding component includes a lower shielding plate and a pair of holding arms located on both sides of the lower shielding plate. Each holding arm includes a vertical connecting plate and a horizontal pressure plate located at the end of the vertical connecting plate. The vertical connecting plate and the horizontal pressure plate hold the upper shielding plate of the upper shielding component.

[0009] Optionally, in the above-described implementation of the electrical connector, the upper shielding member may further include a pair of outwardly extending shielding spring arms disposed on the side of the upper shielding plate.

[0010] In the above-described implementation of the electrical connector, optionally, the upper shielding plate includes a limiting hole, the inner plastic shell is provided with an upper connecting protrusion that engages with the limiting hole, and the horizontal pressure plate of the holding arm at least partially covers the limiting hole of the upper shielding plate.

[0011] Optionally, in the above-described implementation of the electrical connector, the upper shielding plate further includes an upper conductor shielding cover, which is used to provide shielding for signal conductors exposed outside the inner plastic shell.

[0012] Optionally, in the above-described implementation of the electrical connector, the lower shielding plate further includes a lower shielding plate for covering the lower surface of the inner plastic shell. The lower shielding plate also includes a lower conductor shielding cover connected between the lower shielding plate and the wire clamping end, the lower conductor shielding cover for providing shielding for signal conductors exposed outside the inner plastic shell.

[0013] In the above-described implementation of the electrical connector, optionally, the upper conductor shielding cover and the lower conductor shielding cover cooperate to form a tapered space for accommodating the signal conductor.

[0014] In the above-described implementation of the electrical connector, optionally, the lower shielding component includes a lower shielding plate, the lower shielding plate is provided with one or more limiting holes, and the inner plastic shell is provided with one or more upper connecting protrusions that engage with the one or more limiting holes; the lower shielding plate also includes one or more lower shielding baffles to cover the one or more limiting holes on the lower shielding plate.

[0015] Optionally, in the above-described implementation of the electrical connector, the lower shield further includes a pair of front clamping arms, which are used to engage with corresponding engagement grooves formed on both sides of the inner plastic shell.

[0016] In the above-described implementation of the electrical connector, optionally, an opening is formed between the front clamping arm and the holding arm of the lower shield, and a pair of shielding spring arms are connected to both sides of the upper shield, with the shielding spring arms extending outward from the opening.

[0017] In the above-described implementation of the electrical connector, optionally, the shielding spring arm includes a positioning plate and an extension, the positioning plate includes a positioning hole, and the side of the inner plastic shell has a side connecting post corresponding to the positioning hole.

[0018] In the above-described implementation of the electrical connector, optionally, a side limiting protrusion is formed on the side of the inner plastic shell, and the side limiting protrusion provides a guiding slope for guiding the extension of the shielding spring arm to deflect outward.

[0019] Optionally, in the above-described implementation of the electrical connector, the electrical connector is a network connector.

[0020] In the above-described implementation of the electrical connector, optionally, the signal terminal is a male terminal or a female terminal. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the network connector structure according to an embodiment of this application.

[0023] Figure 2 This is an exploded view of the network connector according to an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the structure of the inner shell module, which consists of an inner plastic shell, an upper shield, and a lower shield, according to an embodiment of this application.

[0025] Figure 4 This is a schematic diagram showing the relative positions of the upper shield, lower shield, signal terminal, and cable in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of the structure of the signal terminal in an embodiment of this application.

[0027] Figure 6 This is a structural schematic diagram showing the relative positional relationship between the signal terminals and cables in an embodiment of this application.

[0028] Figure 7-8This is a schematic diagram of the inner plastic shell structure according to an embodiment of this application.

[0029] Figure 9-10 This is a schematic diagram of the structure of the upper shielding component according to an embodiment of this application.

[0030] Figure 11-12 This is a schematic diagram of the structure of the lower shielding component according to an embodiment of this application. Detailed Implementation

[0031] The preferred embodiments of this application are described in detail below with reference to the accompanying drawings to fully introduce the technical content of this application to those skilled in the art, to demonstrate that this application can be implemented, and to make the disclosed technical content of this application clearer, so that those skilled in the art can more easily understand how to implement this application. However, this application can be embodied in many different forms of embodiments, and the protection scope of this application is not limited to the embodiments mentioned herein. The description of the embodiments below is not intended to limit the scope of this application.

[0032] The directional terms used in this application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", and "side", are only for the directions shown in the accompanying drawings. The directional terms used herein are for the purpose of explaining and illustrating this application, and not for limiting the scope of protection of this application.

[0033] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. Furthermore, for ease of understanding and description, the dimensions and thicknesses of each component shown in the drawings are arbitrary, and this application does not limit the dimensions and thicknesses of each component.

[0034] refer to Figure 1 According to an embodiment of this application, the network connector 100 can be placed in a Cartesian coordinate system having a first direction M, a second direction N, and a third direction P that are orthogonal to each other. In this embodiment, combined with Figure 1 The first direction M corresponds to the insertion direction of the connector, the second direction N corresponds to the height direction of the connector, and the third direction P corresponds to the width direction of the connector.

[0035] refer to Figure 1-2 The network connector 100 may include: a housing 5, signal terminals 2, an inner plastic shell 1, an upper shield 3 surrounding the inner plastic shell 1, and a lower shield 4. Further reference. Figure 3 The inner plastic shell 1, the upper shielding component 3, and the lower shielding component 4 are assembled to obtain the final product. Figure 3The inner shell module 700 is shown. The inner plastic shell 1 includes a front plastic shell 110 and a rear plastic shell 120. In the inner shell module 700, the upper shield 3 and the lower shield 4 circumferentially surround the rear plastic shell 120 of the inner plastic shell 1, while the front plastic shell 110 of the inner plastic shell is exposed.

[0036] The two signal terminals 2 can be terminated at the ends of the signal wires in the cable and then installed into the inner housing module 700. Figure 4 The diagram shows the positional relationship between cable 200, signal terminal 2, upper shield 3, and lower shield 4 in the assembled state. In order to... Figure 4 Signal terminal 2 is shown in the image, and the inner plastic shell 1 has been removed.

[0037] Further reference Figure 5 and Figure 6 Two signal terminals 2 can be installed at the ends of two signal lines 202 within the cable 200, and then the resulting signal wires with the signal terminals 2 connected to them can be inserted into the signal terminal channels in the inner plastic housing 1. (Reference) Figure 6 The cable 200 may be a signal cable, comprising a pair of signal wires 202 covered by an outer insulation layer 201. After removing the outer insulation layer 201 of the cable 200, the pair of signal wires 202 are exposed. The exposed pair of signal wires 202 are appropriately bent to increase the spacing between them, forming... Figure 6 The signal wires are shown with a forked segment 203. Then, each pair of signal wires 202 with the forked segment 203 is connected to the terminal 21 of the corresponding signal terminal 2. A suitable connection method may be, for example, stripping the insulation of the signal wires 202 to expose the conductive core 204, and then crimping the conductive core 204 to the terminal 21 of the signal terminal 2.

[0038] The plug-in ends 22 of the two signal terminals 2 are located on the opposite side to the wiring tail end 21. When the signal terminals are installed in the inner plastic housing 1, the plug-in ends 22 are located in the terminal channels of the inner plastic housing 1, and when the network connector 100 and the mating connector are connected, the plug-in ends 22 of the signal terminals 2 will connect with the signal terminal plug-in ends in the mating connector. For example, when Figure 5 When the plug end 22 of the signal terminal 2 shown is in the form of a female end, the plug end of the signal terminal in the mating connector can be in the form of a male end.

[0039] In the above embodiments, it can be understood that in the inner housing module 700, the inner plastic shell 1 is intended to provide fixed support for the signal terminal 2 and the signal line 202, while the electrical shielding structure composed of the upper shield 3 and the lower shield 4 is intended to provide the signal shielding effect required for high-speed transmission. The following will combine... Figures 7-12The optional or preferred configurations of the inner plastic shell 1, the upper shield 3, and the lower shield 4 that make up the inner shell module 700 are described sequentially in the embodiments according to this application.

[0040] Figure 7 Further details of the inner plastic shell 1 according to an embodiment of this application are shown. Figure 8 With and Figure 7 The opposite perspective reveals more details of the inner plastic shell 1. For example... Figure 7-8 As shown, the inner plastic housing 1 may include a front portion 110 and a rear portion 120. The front portion 110 includes a front terminal channel 1105 for accommodating or partially accommodating the plug-in end 22 of the signal terminal 2, and the rear portion 120 includes a rear terminal channel 1205 for accommodating or partially accommodating the wiring tail end 21 of the signal terminal 2.

[0041] Figure 7-8 In the inner plastic shell 1 shown, several positioning structures are provided on the outer surface of the rear portion 120 of the plastic shell for the installation and positioning of the upper shield 3 and the lower shield 4. These positioning structures include: an upper connecting protrusion 124 located on the upper surface 1201 of the rear portion 120 of the plastic shell, a first lower connecting protrusion 125 and a second lower connecting protrusion 126 located on the lower surface 1202 of the rear portion 120 of the plastic shell, a pair of side connecting posts 127 and a pair of side limiting protrusions 128 located on the left and right surfaces of the rear portion 120 of the plastic shell.

[0042] Figure 9 Further details of the upper shield 3 according to an embodiment of this application are shown. Figure 10 With and Figure 9 The opposite perspective reveals more details of shielding component 3.

[0043] refer to Figure 9 and Figure 10 The upper shielding component 3 includes an upper shielding plate 32 and two shielding spring arms 31 connected to both sides of the upper shielding plate 32. When the upper shielding component 3 and the inner plastic shell 1 are assembled together, the two shielding spring arms 31 are respectively disposed on two sides of the inner plastic shell 1. More specifically, as shown... Figure 9-10 As shown, each shielding spring arm 31 includes a positioning plate 314 and an extension 313. A positioning hole 340 is formed on the positioning plate 314, which can be assembled with the side connecting posts 127 on the left and right side walls of the rear portion 120 of the inner plastic shell 1. At the end of the extension 313 of each shielding spring arm 31, at least one contact point protruding outwards away from the inner plastic shell 1 can be formed for overlapping with the shielding sheet in a mating connector (not shown). For example, as... Figure 9-10 As shown, each shielding arm 31 has a specific contact 311.

[0044] In a further implementation, the upper shielding plate 32 is configured to be bent on the left and right sides to form rolled edges, and the two shielding spring arms 31 are connected to the edges of the rolled edges.

[0045] When the upper shielding component 3 is installed on the inner plastic shell 1, the upper shielding plate 32 covers the upper surface 1201 of the rear part 120 of the plastic shell. This structure of the upper shielding plate 32 increases the coverage area of ​​the shielding component on the inner plastic shell 1 and improves the shielding effect of the shielding component.

[0046] Continue to refer to Figure 9-10 A limiting hole 321 is provided on the upper shielding plate 32 of the upper shielding component 3. The upper connecting protrusion 124 on the inner plastic shell 1 engages with the limiting hole 321. The engagement of the upper connecting protrusion 124 and the limiting hole 321 achieves horizontal limiting of the upper shielding plate 32, preventing horizontal displacement of the upper shielding plate 32. In other embodiments, the connecting protrusion can also be provided on the upper shielding plate 32, and the limiting hole can be provided on the inner plastic shell 1.

[0047] Continue to refer to Figure 9-10 The upper shielding member 3 may further include an upper conductor shielding cover 33. The upper conductor shielding cover 33 does not cover the inner plastic shell 1, but rather provides shielding for signal lines exposed outside the inner plastic shell 1. Specifically, the upper conductor shielding cover 33 is connected to the rear end of the upper shielding plate 32. The upper conductor shielding cover 33 includes a first sub-shielding portion 331 and two second sub-shielding portions 332. The first sub-shielding portion 331 is connected to the upper shielding plate 32 and gradually narrows in the direction away from the upper shielding plate 32, forming a trapezoid. The two second sub-shielding portions 332 extend from both sides of the first sub-shielding portion 331 and bend to cover the left and right sides of the signal conductor branch segment 203. The upper conductor shielding cover 33 thus provides a take-up space to accommodate the signal conductor branch segment 203, and this take-up space gradually narrows in the direction away from the upper shielding plate 32. Therefore, the upper conductor shielding cover 33 can conform to the spatial orientation of the signal conductor 202 from the cable 200 to the signal terminal 2, improving the shielding effect of the upper conductor shielding cover 33.

[0048] Figure 11 Further details of the lower shield 4 according to an embodiment of this application are shown. Figure 12 With and Figure 11 The opposite perspective reveals more details about shielding component 4.

[0049] refer to Figure 11 and Figure 12The lower shielding component 4 includes a lower shielding plate 41, which covers the lower surface 1202 of the rear portion 120 of the inner plastic shell 1. The lower shielding plate 41 has a limiting hole 411, and a first lower connecting protrusion 125 on the lower surface 1202 of the inner plastic shell 1 engages with the limiting hole 411. The engagement of the first lower connecting protrusion 125 with the limiting hole 411 limits the lower shielding plate 41 in the horizontal direction, preventing it from shifting. The lower shielding plate 41 may also have another limiting hole 412, and a second lower connecting protrusion 126 on the lower surface 1202 of the inner plastic shell 1 engages with the limiting hole 412. The engagement of the second lower connecting protrusion 126 with the limiting hole 412 further limits the lower shielding plate 41 in the horizontal direction, preventing it from shifting. In other embodiments, the limiting hole may be on the inner plastic shell 1, and the first lower connecting protrusion and the second lower connecting protrusion may be on the lower shielding plate 41.

[0050] refer to Figure 11 and Figure 12 The lower shielding component 4 may also include lower shielding baffles 421 and 422. Lower shielding baffle 421 covers the limiting hole 411, and lower shielding baffle 422 covers the limiting hole 412. Thus, at the limiting holes 411 and 412, the insufficient shielding effect caused by the partial opening of the lower shielding plate 41 is compensated, that is, the overall shielding effect is enhanced.

[0051] Continue to refer to Figure 11 and Figure 12 The lower shielding member 4 may also include a pair of holding arms 43. The two holding arms 43 are respectively connected to the left and right ends of the lower shielding plate 41. Each holding arm 43 includes a vertical connecting plate 431 and a horizontal pressure plate 432. (Reference) Figure 3 The vertical connecting plate 431 and the horizontal pressure plate 432 can hold the upper shielding plate 32. Further reference... Figure 9 The horizontal pressure plates 432 of the two holding arms 43 can be configured to cover or partially cover the limiting holes 321 provided on the upper shielding plate 32. Thus, at the limiting holes 321 of the upper shielding plate 32, the insufficient shielding effect caused by the partial opening of the upper shielding plate 32 is compensated, that is, the overall shielding effect is enhanced.

[0052] Continue to refer to Figure 11 and Figure 12 The lower shield 4 may also include a pair of front clamping arms 46. The front clamping arms 46 are formed at the left and right ends of the lower shield 41 and are closer to the front side of the lower shield 41 than the holding arms 43. (Reference) Figure 3 With the help of the front clamping arm 46, the lower shield 4 further accommodates and positions the upper shield 3.

[0053] Continue to refer to Figure 11 and Figure 12 and combined Figure 3 An opening is formed between the front clamping arm 46 and the holding arm 43 of the lower shield 4. When the upper shield 3 is accommodated and positioned within the lower shield 4, the positioning plate 314 of the shielding spring arm 31 of the upper shield 3 is located within the space covered by the lower shield 4, while the outwardly deflected extension 313 of the shielding spring arm 31 extends from the opening between the front clamping arm 46 and the holding arm 43 of the lower shield 4. Further reference Figure 7 and Figure 8 A side limiting protrusion 128 is formed on each of the left and right sides of the rear part 120 of the inner plastic shell 1. The rear part of the side limiting protrusion 128 provides a guide slope 1281 facing the rear of the inner plastic shell 1, thereby guiding the extension 313 of the shielding spring arm 31 to deflect outward.

[0054] refer to Figure 2 and Figure 7 A stop surface perpendicular to the side of the inner plastic shell 1 and facing forward is formed at the front of the side limiting protrusion 128. The stop surface on the side limiting protrusion 128 and the second stop surface on the rear part 120 of the plastic shell, which is opposite to it, form a locking groove 16. The front clamping arm 46 can be fitted into the locking groove 16 to improve the connection stability between the lower shield 4 and the inner plastic shell 1.

[0055] Continue to refer to Figure 11 and Figure 12 The lower shield 4 also includes a wire clamping tail 44 and a lower conductor shielding cover 45 located between the lower shield 41 and the wire clamping tail 44. Figure 3 As shown, the lower conductor shielding cover 45 does not cover the inner plastic shell 1, but rather provides shielding for signal lines exposed outside the inner plastic shell 1. Specifically, the lower conductor shielding cover 45 is configured such that, when the lower shielding member 4 and the upper shielding member 3 are assembled together, the lower conductor shielding cover 45 of the lower shielding member 4 surrounds the upper conductor shielding cover 33 of the upper shielding member, thereby forming a gradually narrowing take-up space that conforms to the spatial orientation of each signal conductor 202 within the cable 200 from the signal terminal 2 to the cable 200. In other words, the upper conductor shielding cover 33 and the lower conductor shielding cover 45 cooperate to form a tapering space to accommodate the signal conductors.

[0056] like Figure 4 As shown, the crimping tail 44 can press the lower shield 4 onto the cable 200. For example, the crimping tail 44 can press the lower shield 4 onto the exposed shielding layer of the cable 200, or onto the shielding ring fitted onto the shielding layer.

[0057] Furthermore, combined with Figure 11 and Figure 9 The width of the front side of the upper conductor shielding cover 33 can be greater than the width of the rear side of the upper shielding plate 32, thereby limiting the holding arm 43.

[0058] Further reference Figure 1 and Figure 2 According to an embodiment of this application, the network connector 100 further includes a housing 5. The housing 5 is fitted over the inner plastic shell 1 and is used to protect the inner shell module 700 composed of the inner plastic shell 1, the upper shield 3, and the lower shield 4.

[0059] In the above embodiments, the electrical shielding structure formed by the upper shielding member 3 and the lower shielding member 4 provides a more complete and tighter shielding effect. For example, complete shielding is provided on both the upper and lower surfaces of the inner plastic shell 1, eliminating or minimizing the incomplete shielding caused by partial openings or seams in the shielding members. On the sides of the inner plastic shell, the holding arms and front clamping arms of the lower shielding member also provide better overall coverage, eliminating or minimizing the seams of the electrical shielding structure.

[0060] The network connector described in the above embodiments of this application may also be referred to as an Ethernet connector in some contexts.

[0061] In the above embodiments of this application, the terms "upper shield" and "lower shield" are used based on the viewing perspective of the accompanying drawings. Depending on the actual application or industry practice, the names of the upper shield and lower shield may be interchanged.

[0062] In the above embodiments of this application, the construction of the network connector is described using a female connector (i.e., a female terminal is installed in the connector) as an example. It can be understood that the network connector can also be a male connector (i.e., a male terminal is installed in the connector).

[0063] In the above embodiments of this application, a network connector is used as an example to describe the present invention. It is understood that a network connector is a connector containing signal terminals. The concepts and ideas proposed in this application can be more broadly applied to electrical connectors that include signal terminals and electrical shielding structures, regardless of whether the actual signal transmission application it supports is based on a network protocol.

[0064] The above provides a detailed description of an electrical connector provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electrical connector, characterized by, Comprise: an outer housing; and an inner housing module (700) for mounting into the outer housing, the inner housing module comprising an inner plastic housing (1) and signal terminals (2) mounted in the inner plastic housing, and comprising an electrical shielding structure, wherein the electrical shielding structure comprises a first shielding member (3) for mounting to a first side of the inner plastic housing and a second shielding member (4) for mounting to a second side of the inner plastic housing, the second side being opposite to the first side, wherein the first and second shielding members are configured to provide a complete shielding on the first and second sides of the inner plastic housing.

2. The electrical connector of claim 1, wherein, The second shielding member is a lower shielding member comprising a wire pressing tail (44), and the first shielding member is an upper shielding member accommodated by the lower shielding member.

3. The electrical connector of claim 1, wherein: the first shielding member is an upper shielding member, and the second shielding member is a lower shielding member comprising a wire pressing tail (44), the upper shielding member comprises an upper shielding plate (32), and the lower shielding member comprises a lower shielding plate (41) and a pair of holding arms (43) located on both sides of the lower shielding plate, each holding arm comprising a vertical connecting plate (431) and a horizontal pressing plate (432) located at the end of the vertical connecting plate, the vertical connecting plate and the horizontal pressing plate holding the upper shielding plate (32) of the upper shielding member.

4. The electrical connector of claim 3, wherein, The upper shielding member further comprises a pair of outwardly extending shielding arms (31) provided on the side of the upper shielding plate.

5. The electrical connector of claim 3, wherein: the upper shielding plate comprises a limiting hole (321), and the inner plastic housing is provided with an upper connecting protrusion (124) which is embedded with the limiting hole, the horizontal pressing plate (432) of the holding arm at least partially covers the limiting hole of the upper shielding plate.

6. The electrical connector of claim 3, wherein, The upper shielding plate further comprises an upper wire shielding cover (33) for shielding the signal wires exposed outside the inner plastic housing.

7. The electrical connector of claim 6, wherein: the lower shielding plate further comprises a lower shielding plate (41) for covering the lower surface of the inner plastic housing, the lower shielding plate further comprises a lower wire shielding cover (45) connected between the lower shielding plate and the wire pressing tail, the lower wire shielding cover being used for shielding the signal wires exposed outside the inner plastic housing.

8. The electrical connector of claim 7, wherein, The upper wire shielding cover and the lower wire shielding cover cooperate to form a tapered space for accommodating the signal wires.

9. The electrical connector of claim 2, wherein: the lower shielding member comprises a lower shielding plate (41) provided with one or more limiting holes (411, 412), and the inner plastic housing is provided with one or more upper connecting protrusions which are embedded with the one or more limiting holes; the lower shielding plate further comprises one or more lower shielding baffles (421, 422) for covering the one or more limiting holes on the lower shielding plate.

10. The electrical connector of claim 3, wherein, The lower shield further comprises a pair of front clamping arms (46) for fitting into corresponding clamping grooves (16) formed on both sides of the inner plastic shell.

11. The electrical connector of claim 10, wherein, An opening is formed between the front clamping arms and the holding arms of the lower shield, and a pair of shield spring arms (31) are connected to both sides of the upper shield and extend outward from the opening.

12. The electrical connector of claim 11, wherein, The shield spring arms comprise a positioning plate (314) and an extension (313), and the positioning plate comprises positioning holes (340), and the side of the inner plastic shell is formed with side connecting columns (127) corresponding to the positioning holes.

13. The electrical connector of claim 12, wherein, The side of the inner plastic shell is formed with a side limiting protrusion (128) which provides a guide inclined surface (1281) for guiding the extension of the shield spring arm to deflect outward.

14. The electrical connector of claim 1, wherein, The electrical connector is a network connector.

15. The electrical connector of claim 1, wherein, The signal terminal is a male terminal or a female terminal.

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