A high speed electrical connector

Abstract

A high-speed electrical connector includes a plurality of sheet-shaped insulating supports, each of the sheet-shaped insulating supports is arranged in a stack along a direction, a plurality of signal terminals are fixed in each of the sheet-shaped insulating supports, the plurality of signal terminals at least include a pair of differential signal terminal pairs, each of the signal terminals includes a tail portion for connecting to a circuit board, a contact portion for cooperating with a mating device, and a body portion for connecting the tail portion and the contact portion together, the body portion forms a signal passage between the tail portion and the contact portion for the signal terminal, an air passage is formed through each of the sheet-shaped insulating supports at a position adjacent to the signal terminal, and no air passage is arranged between at least two adjacent signal terminals, so that a better structural strength is achieved.

Description

Technical field

[0001] The embodiments of the present application relate to the field of communication transmission, and in particular to a high-speed electrical connector. [Background Technology]

[0002] For related prior art, please refer to the connector module disclosed in Chinese utility model patent No. CN208820157U, which includes a connector module comprising a conductive housing, a terminal assembly fixed to the conductive housing by assembly, a cable electrically connected to the terminal assembly, a solder joint protection module covering the connection position between the terminal assembly and the cable, an outer module covering the conductive housing, and a heat shrink tubing sleeve sleeved on the cable. The connector module is used to achieve docking and fixation with a circuit board. There are a plurality of terminal assemblies, each of which includes an insulating body and a pair of signal terminals, and the pair of signal terminals are fixed to the insulating body by injection molding. There are a plurality of cables, each of which includes two signal wires and a ground wire. During assembly, the two signal wires of each cable group are in contact with the corresponding pair of signal terminals, and the ground wire of the cable is in contact with the grounding surface formed on the conductive housing. The solder joint protection module and the outer module are formed by integral injection molding.

[0003] However, in the process of integrally injecting the solder joint protection module and the outer module, the connector module in the prior art may cause the ground wire to become skewed and shifted due to the injection pressure and high temperature, resulting in a short circuit with the signal line, thereby causing problems such as poor voltage and current resistance electrical performance.

[0004] In view of this, it is necessary to provide a new high-speed electrical connector to solve the above technical problems. [Summary of the invention]

[0005] The purpose of this application is to provide a new high-speed electrical connector with better structural strength.

[0006] In order to achieve the above objectives, this application is implemented through the following technical solutions:

[0007] A high-speed electrical connector comprises: a plurality of sheet-like insulating support members, each of the sheet-like insulating support members being stacked in one direction, a plurality of signal terminals being fixedly disposed in each sheet-like insulating support member, the plurality of signal terminals comprising at least one pair of differential signal terminal pairs, each signal terminal comprising a tail portion for connecting to a circuit board, a contact portion for cooperating with a docking device, and a body portion for interconnecting the tail portion and the contact portion, the body portion forming a signal path between the tail portion and the contact portion for the signal terminal, an air channel being formed through each of the sheet-like insulating support members at a position adjacent to the signal terminal, and no air channel being provided between at least two adjacent signal terminals.

[0008] Further, the air passage has the same extension trend as the body part of the adjacent signal terminal.

[0009] Further, the body part of at least one of the signal terminals is partially exposed to air, and the air groove is formed on the corresponding sheet-shaped insulating support.

[0010] Further, the body part of at least one of the signal terminals comprises a horizontally extending horizontal part, a vertically extending vertical part, and an inclined part connecting the horizontal part and the vertical part, the air passage comprises a part adjacent to the horizontal part, a part adjacent to the vertical part, and a part adjacent to the inclined part, and the air groove comprises a part at least partially exposing the horizontal part to air, a part at least partially exposing the vertical part to air, and a part at least partially exposing the inclined part to air.

[0011] Further, four signal terminals are fixed on the sheet-shaped insulating support, the two adjacent signal terminals on the upper side form a pair of signal terminal pair, and the two adjacent signal terminals on the lower side form a pair of signal terminal pair.

[0012] Further, the sheet-shaped insulating support and the insulating body are fixed, the insulating body has two open first insertion slots and second insertion slots at the front end, the first insertion slots and the second insertion slots are arranged in the vertical direction, the contact parts of the two signal terminals on the upper side protrude into the first insertion slots, and the contact parts of the two signal terminals on the lower side protrude into the second insertion slots.

[0013] Further, the insulating body and the plurality of sheet-shaped insulating supports fixed with the signal terminals form a module, the high-speed connector further comprises a shielding cage, the shielding cage covers the periphery of the module, the shielding cage has an insertion opening corresponding to the first insertion slots and the second insertion slots at the front end, the insertion opening and the front end of the insulating body are spaced apart by a certain distance in the insertion and extraction direction, and an insertion space is formed between the insertion opening of the shielding cage and the front end of the insulating body.

[0014] Further, the shielding cage comprises a rear end plate at the rear end, a heat dissipation area is formed between the rear end face of the module and the rear end plate, and the rear end plate has a heat dissipation hole corresponding to the position of the heat dissipation area.

[0015] Furthermore, the shielding cage also includes two partition plates, which are spaced apart in the up and down directions to divide the insertion space into three areas. The high-speed electrical connector also includes a light guide and a light isolation member. Two supporting feet are formed at the rear end of the light guide, and two light guide columns are formed at the front end of the light guide. The light guide is located in the middle area of ​​the two partition plates and is clamped by the two partition plates. The light isolation member is fixed on the two light guide columns, exposing the front end surfaces of the two light guide columns and covering the four sides of the two light guide columns. The two supporting feet are clamped on both sides of the module, and ventilation holes are formed on the light isolation member that pass through the front and back directions.

[0016] Furthermore, there are two modules arranged adjacent to each other, each module is fixed with the light guide, the shielding cage includes a blocking plate, the blocking plate is clamped between the two modules, and the blocking plate separates the light guides of the two modules along the entire length of the light guide.

[0017] Compared with the prior art, the present application has the following beneficial effects: better structural strength.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional schematic diagram of the high-speed electrical connector of the present application;

[0019] Figure 2 Figure 1 A three-dimensional schematic diagram of the high-speed electrical connector shown is shown from another angle;

[0020] Figure 3 This is a partial exploded perspective view of the high-speed electrical connector of the present application, which shows a schematic perspective view of a portion of the shielding cage structure separated from the module;

[0021] Figure 4 This is a partial exploded perspective view of the high-speed electrical connector of the present application;

[0022] Figure 5 yes Figure 4 A further exploded perspective view of the high-speed electrical connector;

[0023] Figure 6 It is a three-dimensional schematic diagram of the connector portion of the high-speed electrical connector of the present application;

[0024] Figure 7 yes Figure 6 a further exploded perspective view of the connector portion shown;

[0025] Figure 8 It is a side view of a sheet-shaped insulating support member fixed with a signal terminal of the high-speed electrical connector of the present application;

[0026] Figure 9is a sectional view of a second embodiment of the high-speed electrical connector of the present application, Figure 9 the sectional position of which is as shown in Figure 1 the position of the A-A line in the embodiment, Figure 9 the shielding cage, the two spacer plates, the light-blocking member structure in Figure 1 the embodiment in Figure 9 is not shown, and Figure 9 the light-guiding member structure in Figure 9 is not important, the structure that is the focus of the present embodiment (the second embodiment of the high-speed electrical connector of the present application) is the formation of a heat dissipation area between the rear end plate of the shielding cage and the rear end face of the module, and the formation of the heat dissipation hole structure in the rear end plate corresponding to the position of the heat dissipation area,

[0027] Figure 10 is a side view of Figure 9 ;

[0028] Figure 11 is an enlarged view of the structure in Figure 1 within the dashed circle.

DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] In the description of the application, it should be understood that the terms "including" and "having" and any variations thereof used in the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units that are clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] In addition, in order to ensure the accuracy of the description of the present application, the direction involved in the present application is always taken as Figure 1 for reference, in which the extension direction of the X axis is the left-right direction (in which the positive direction of the X axis is to the right), the extension direction of the Y axis is the front-rear direction (that is, the plug-in direction, in which the positive direction of the Y axis is to the rear), and the extension direction of the Z axis is the up-down direction (in which the positive direction of the Z axis is upward).

[0033] Please refer to Figures 1 to 11 As shown, the high-voltage electrical connector of the present application is disclosed, including a connector part (unnumbered) and a shielding cage 4. The connector part is electrically connected to the docking circuit board, and the shielding cage 4 is covered on the periphery of the connector part. The shielding cage 4 itself is fixedly connected to the docking circuit board.

[0034] Please refer to Figures 4 to 7 As shown, the connector portion includes an insulating body 3, multiple sheet-shaped insulating support members 1, and a plurality of signal terminals 2, wherein the plurality of signal terminals 2 include at least one differential signal terminal pair. The insulating body 3 is made of an insulating material through injection molding, and the front end of the insulating body 3 forms two open-shaped first slots 31 and second slots 32. The first slots 31 and the second slots 32 are spaced apart in the vertical direction.

[0035] Please refer to Figures 4 to 8 As shown, each of the sheet-like insulating supports 1 is a generally flat sheet and is injection-molded from an insulating material. Four signal terminals 2 are fixed within each sheet-like insulating support 1. Each signal terminal 2 includes a tail portion 21 that protrudes downward from the sheet-like insulating support 1 and is used to connect to a circuit board, a contact portion 22 that protrudes forward from the sheet-like insulating support 1 and is used to mate with a docking device, and a body portion 23 that connects the tail portion 21 and the contact portion 22. The body portion 23 forms a signal path between the tail portion 21 and the contact portion 22 for each signal terminal 2.

[0036] Please refer to Figures 3 to 7 As shown, the multiple sheet-like insulating support members 1 are stacked in the left-right direction and then inserted and fixed to the insulating body 3 from front to back. The contact portions 22 of the two upper signal terminals 2 on the same sheet-like insulating support member 1 protrude into the first slot 31, and the contact portions 22 of the two lower signal terminals 2 protrude into the second slot 32. In this application, the insulating body 3 and the multiple sheet-like insulating support members 1 are collectively referred to as insulating members (unnumbered). The insulating body 3 and the multiple sheet-like insulating support members 1 with the signal terminals 2 fixed thereto are collectively referred to as modules (unnumbered).

[0037] Please refer to Figures 3 to 7 As shown, the connector portion of the high-speed electrical connector shown in this application also includes insulating fasteners 8, which are fastened to both sides of the insulating body 3 from front to back, thereby framing (enclosing) the multiple sheet-like insulating support members 1. In this application, the insulating fasteners 8 are located at the lower rear end of the module.

[0038] Please refer to Figures 1 to 7As shown, the shielding cage 4 is made of sheet metal. An insertion opening 41 is formed at the front end of the shielding cage 4, corresponding to the first and second slots 31 and 32. Along the insertion and removal direction, the insertion opening 41 of the shielding cage 4 is spaced a specific distance from the front edge of the insulating body 3, forming an insertion space 40. The shielding cage 4 comprises a top plate 401, a bottom plate 401 positioned opposite and directly below the top plate 401, two side plates 403 connecting the top and bottom plates 401, and a rear plate 42 at the rear end. The top plate 401, bottom plate 402, two side plates 403, and rear plate 42 form a roughly rectangular, forward-opening metal cage with the insertion opening 41 formed at the front. An opening is formed between the rear edge of the bottom plate 402 and the rear plate 42, allowing the end of the insertion space 40 to communicate downward with the outside world. The tail portions 21 of the signal terminals 2 of the connector protrude downward from the rear end of the bottom plate 402 and out of the shielding cage 4.

[0039] Please refer to Figures 3 to 5 As shown, the shielding cage 4 also includes two partition plates 44, and the two partition plates 44 divide the insertion space 40 into three areas stacked in the up and down directions. The first slot 31 corresponds to the upper area of ​​the three areas, and the second slot 32 corresponds to the lower area of ​​the three areas. The high-speed electrical connector also includes a light guide 5, which extends longitudinally along the plug-in and pull-out direction. The light guide 5 is clamped between the two partition plates 44 (that is, the middle area of ​​the three areas). The rear end edges of the two partition plates 44 are correspondingly inserted and fixed in the insulating body 3, and the left and right side edges of the two partition plates 44 are correspondingly fixed with the two side plates 403 (specifically, the two side plates 403 have snap holes (not marked) formed at corresponding positions. The two partition plates 44 are bent to form snap pieces (not marked), and the snap pieces are bent to limit the position after being inserted into the snap holes).

[0040] Please refer to Figures 3 to 5 As shown, the light guide 5 is limited by the two spacer plates 44 along the up and down directions and the left and right directions perpendicular to the plug-in and unplug direction. The spacer plates 44 are bent on both sides along the left and right directions to form limiting buckles 442. The limiting buckles 442 are limited to the left and right sides of the light guide 5. The limiting buckles 442 form a precise positioning for the light guide 5. The setting of the limiting buckles 442 can effectively absorb the size difference or tolerance between the light guide 5 and the middle area of ​​the three areas. For example, when the size of the light guide 5 along the left and right directions is much smaller than the width of the middle area of ​​the three areas, the light guide 5 can be accurately positioned. Another example is when the widths of various parts of the light guide 5 along the front-to-back direction (the width in the left-to-right direction) are inconsistent, the light guide 5 can be easily accurately positioned at various positions in the front-to-back direction.

[0041] Please refer to Figures 3 to 7 As shown, the high-speed electrical connector of the present application further includes a metal support member 7, which is fixed to the insulating body 3 and is located between the first slot 31 and the second slot 32 of the insulating member in the vertical direction, and is easily located between the two partition plates 44. The metal support member 7 limits the light guide 5 in the plug-in and pull-out direction. Specifically, the metal support member 7 extends rearward to form two mounting plates 71, which are fastened to the left and right side surfaces of the insulating body 3. The rear end of the light guide 5 extends rearward and downward to form two supporting legs 51, which are correspondingly clamped on the outer surfaces of the two mounting plates 71 of the metal support member 7. Each mounting plate 71 extends in the left and right direction to form at least two limiting plates 711, which limit the light guide 5 in the plug-in and pull-out direction.

[0042] In addition, each of the mounting pieces 71 is further inclined and extended backward to form a cantilevered elastic arm 712, and the elastic arm 712 is in elastic contact with the shielding cage 4. The metal support member 7 has two supporting pieces 72 extending backward, and the two supporting pieces 72 are arranged opposite to each other in the up and down directions. The two supporting pieces 72 correspondingly abut between the two spacer plates 44, and each of the supporting pieces 72 is formed with an elastic piece 721, and the elastic piece 721 is in elastic contact with the spacer plate 44.

[0043] In this application, the metal support 7 is installed on the light guide 5 from bottom to top, and then the light guide 5 with the metal support 7 fixed is assembled from back to front between the two partition plates 44, and finally the two partition plates 44 with the metal support 7 and the light guide 5 fixed are inserted and fixed on the insulating body 3 from front to back.

[0044] Please refer to Figure 7 and Figure 8 As shown, each of the sheet-like insulating supports 1 has an air channel 11 formed therethrough near the signal terminals 2, and no air channel 11 is provided between at least two adjacent signal terminals 2. In this embodiment, from bottom to top, no air channel 11 is provided between the first signal terminal 2 (A1) and the second signal terminal 2 (A2). An air channel 11 is provided between the second signal terminal 2 (A2) and the third signal terminal 2 (A3). An air channel 11 is provided between the third signal terminal 2 (A3) and the fourth signal terminal 2 (A4).

[0045] Of course, in other embodiments, the design may be such that, from bottom to top, an air passage 11 is provided between the first signal terminal 2 (A1) and the second signal terminal 2 (A2). No air passage 11 is provided between the second signal terminal 2 (A2) and the third signal terminal 2 (A3). An air passage 11 is provided between the third signal terminal 2 (A3) and the fourth signal terminal 2 (A4).

[0046] Of course, in other embodiments, the design may be such that, from bottom to top, an air channel 11 is provided between the first signal terminal 2 (A1) and the second signal terminal 2 (A2). An air channel 11 is provided between the second signal terminal 2 (A2) and the third signal terminal 2 (A3). No air channel 11 is provided between the third signal terminal 2 (A3) and the fourth signal terminal 2 (A4).

[0047] Of course, in other embodiments, the adjacent signal terminals 2 without the air channel 11 may be between the first signal terminal 2 (A1) and the second signal terminal 2 (A2) and between the third signal terminal 2 (A3) and the fourth signal terminal 2 (A4).

[0048] In the present application, the air channel 11 is not provided between two adjacent signal terminals mainly for the purpose of facilitating injection molding and improving the overall structural strength of the sheet-like insulating support 1. Of course, the air channel 11 is provided near the individual signal terminals 2 to help reduce crosstalk (air is a medium with less loss than the insulating material forming the sheet-like insulating support 1), which helps to improve high-frequency signal transmission.

[0049] Please refer to Figure 7 and Figure 8 As shown, the air channel 11 extends in the same direction as the body portion 23 of the adjacent signal terminal 2. A portion of the body portion 23 of each signal terminal 2 is exposed to the air, and an air slot 10 is formed on the corresponding sheet-shaped insulating support member 1. The body portion 23 of each signal terminal 2 includes a horizontal portion 231 extending horizontally, a vertical portion 232 extending vertically, and an inclined portion 233 connecting the horizontal portion 231 and the vertical portion 232. The air channel 10 includes a portion adjacent to the horizontal portion 231, a portion adjacent to the vertical portion 232, and a portion adjacent to the inclined portion 233. The air slot 10 includes a portion that exposes at least a portion of the horizontal portion 231 to the air, a portion that exposes at least a portion of the vertical portion 232 to the air, and a portion that exposes at least a portion of the inclined portion 233 to the air.

[0050] Please refer to Figure 9 and Figure 10As shown, the second embodiment of the high-speed electrical connector of the present application, in the second embodiment, a heat dissipation zone 400' is formed between a local position of the rear end surface of the insulating member (composed of an insulating body 3' and a plurality of sheet-like insulating support members 1') and the rear end plate 42', and a heat dissipation hole 43' is formed through the rear end plate 42' corresponding to the position of the heat dissipation zone 400'. Specifically, the rear surface of the plurality of sheet-like insulating support members 1' is partially located between the rear end plate 42' to form the heat dissipation zone 400'. More specifically, the rear surface of the plurality of sheet-like insulating support members 1', excluding the surface covered by the insulating fastener 8', forms the heat dissipation zone 400' between the rear end plate 42'. The heat dissipation zone 400' and the heat dissipation hole 43' can improve air circulation, thereby improving heat dissipation performance. In the present application, the high-speed design of the insulating fastener 8 in the up and down directions is relatively small, in order to make the heat dissipation zone 400' as large as possible. In the present application, along the up and down direction, the height of the heat dissipation zone 400 ′ is not less than twice the height of the insulating fastener 8 ′, and preferably, the height of the heat dissipation zone 400 ′ is not less than three times the height of the insulating fastener 8 ′.

[0051] Please refer to Figures 3 to 5 As shown, the high-speed electrical connector of the present application further includes a light barrier 6. The front end of the light guide 5 forms two light guide columns 52 spaced apart along the left-right direction. The light barrier 6 is fixed to the two light guide columns 52, exposing the front ends of the two light guide columns 52 and covering the surroundings of the two light guide columns 52. The light barrier 6 is formed with a plurality of ventilation holes 60 extending in the front-to-back direction. The ventilation holes 60 connect the front end of the middle area (the area formed between the two spacers) of the three areas to the outside for better heat dissipation.

[0052] Please refer to Figures 1 to 5 As shown, the high-speed electrical connector 1 of the present application has two connector sections, which are adjacently arranged in the left-right direction. A light guide 5 is fixed to each connector section. The shielding cage 4 includes a blocking plate 45, which is clamped between the two connector sections. The blocking plate 45 divides the insertion space 40 formed by the shielding cage 4 into two sections in the left-right direction. The blocking plate 45 separates the light guides 5 of the two connector sections along the entire length of the light guides 5 to prevent light from crossing between the light guides 5 corresponding to the two connector sections.

[0053] Please refer to Figure 7 、 Figure 8 and Figure 11As shown, each of the sheet-like insulating supports 1 is formed with a thin portion 14 at the connection position between the main body 23 and the tail 21, and the two adjacent sheet-like insulating supports 1 form an air groove 140 at the position of the thin portion 14, and the air groove 140 is connected to the air slot 10. The width of the air groove 140 is wider than the main body 23 where the signal terminal 2 is located at the position of the air groove 140. The signal terminal 2 is not exposed to the air groove 140. The air channel 11 is not connected to the air groove 140. The provision of the air groove 140 is conducive to improving impedance continuity and has a favorable effect on the signal integrity of the signal terminal 2. In the present application, the air groove 140 is formed on one of the side surfaces of each of the sheet-like insulating supports 1 along the left and right directions.

[0054] The above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

[0055] The above description is only part of the implementation methods of the present application, not all of the implementation methods. Any equivalent changes made to the technical solution of the present application by ordinary technicians in this field after reading the description of the present application are covered by the claims of the present application.

Claims

1. A high-speed electrical connector, comprising: A plurality of sheet-shaped insulating support members, each of which is stacked in one direction. Each sheet-like insulating support member is provided with a plurality of signal terminals, wherein the plurality of signal terminals include at least one pair of differential signal terminals. Each signal terminal includes a tail portion for connecting to a circuit board, a contact portion for mating with a docking device, and a body portion connecting the tail portion and the contact portion. The body portion forms a signal path between the tail portion and the contact portion for the signal terminal. The invention is characterized in that: an air channel is formed through each of the sheet-like insulating supports at a position adjacent to the signal terminal, and no air channel is provided between at least two adjacent signal terminals, and the air channel extends in the same direction as the body of the adjacent signal terminal; A partial surface of the body portion of at least one of the signal terminals is exposed to the air and an air slot is formed on the corresponding sheet-shaped insulating support member, and the air channel does not intersect with adjacent air slots; The sheet-like insulating support is formed with a thin portion at the connection position between the main body and the tail, and the two adjacent sheet-like insulating support members form an air groove at the thin portion position. The air groove is connected to the air slot, and the width of the air groove is wider than the main body where the signal terminal is located at the air groove position.

2. The high-speed electrical connector according to claim 1, wherein: The signal terminal is not exposed to the air groove, the air channel is not connected to the air groove, and the air groove is formed on one side surface of each sheet-shaped insulating support member along the left and right directions.

3. The high-speed electrical connector according to claim 1 or 2, wherein: The body portion of at least one of the signal terminals includes a horizontal portion extending horizontally, a vertical portion extending vertically, and an inclined portion connecting the horizontal portion and the vertical portion; the air channel includes a portion adjacent to the horizontal portion, a portion adjacent to the vertical portion, and a portion adjacent to the inclined portion; and the air groove includes a portion that at least partially exposes the horizontal portion to the air, a portion that at least partially exposes the vertical portion to the air, and a portion that at least partially exposes the inclined portion to the air.

4. The high-speed electrical connector according to claim 1 or 2, wherein: Four signal terminals are fixedly arranged on the sheet-shaped insulating support member, wherein two adjacent signal terminals located at the top form a pair of signal terminals, and two adjacent signal terminals located at the bottom form a pair of signal terminals.

5. The high-speed electrical connector according to claim 4, wherein: It also includes an insulating body, and the multiple sheet-like insulating supports are fixed to the insulating body. Two open first slots and a second slot are formed at the front end of the insulating body. The first slot and the second slot are spaced apart in the vertical direction. The contact portions of the two signal terminals located above protrude into the first slot, and the contact portions of the two signal terminals located below protrude into the second slot.

6. The high-speed electrical connector according to claim 5, wherein: The insulating body and a plurality of sheet-shaped insulating support members with signal terminals fixed thereon form a module. The high-speed electrical connector further comprises a shielding cage, which is covered around the periphery of the module. An insertion opening is formed at the front end of the shielding cage corresponding to the first slot and the second slot. Along the plugging and unplugging direction, the insertion opening is spaced a specific distance from the front end of the insulating body, and an insertion space is formed between the insertion opening of the shielding cage and the front end of the insulating body.

7. The high-speed electrical connector according to claim 6, wherein: The shielding cage includes a rear end plate at the rear end, a heat dissipation zone is formed between at least a part of the rear end surface of the module and the rear end plate, and heat dissipation holes are formed through the rear end plate at positions corresponding to the heat dissipation zone.

8. The high-speed electrical connector according to claim 6, wherein: The shielding cage also includes two partition plates, which are spaced apart in the up and down directions to divide the insertion space into three areas. The high-speed electrical connector also includes a light guide and a light isolating member. Two supporting legs are formed at the rear end of the light guide, and two light guide columns are formed at the front end of the light guide. The light guide is located in the middle area of ​​the two partition plates and is clamped by the two partition plates. The light isolating member is fixed on the two light guide columns, exposing the front end surfaces of the two light guide columns and covering the four sides of the two light guide columns. The two supporting legs are clamped on both sides of the module, and ventilation holes are formed on the light isolating member that pass through the front and back directions.

9. The high-speed electrical connector according to claim 8, wherein: There are two modules and they are arranged adjacent to each other. The light guide is fixed on each module. The shielding cage includes a blocking plate, which is clamped between the two modules. The blocking plate separates the light guides of the two modules along the entire length of the light guide.

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