CN211719825U - High-speed electric connector - Google Patents

Abstract

A high-speed electric connector comprises an insulating part, wherein two open first slots and two open second slots are formed at the front end of the insulating part, the first slot and the second slot are arranged at intervals along the vertical direction, a plurality of signal terminals are fixed in the insulating part, the shielding cage covers the periphery of the insulating part fixed with the signal terminals, the front end of the shielding cage is provided with an insertion opening corresponding to the first slot and the second slot, along the insertion direction, the insertion opening of the shielding cage and the front end edge of the insulating piece are separated by a certain distance to form an insertion space, the shielding cage comprises two partition plates which partition the insertion space into three regions, a light guide member which extends lengthwise along the plugging direction, the light guide piece is fixedly arranged between the two partition plates, and the light guide piece is limited by the two partition plates along the vertical direction and the horizontal direction perpendicular to the plugging direction. The light guide part is accurate in assembling and positioning.

Description

High-speed electric connector

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the field of communication transmission, in particular to a high-speed electric connector.

[ background of the invention ]

A gigabit interface connector (GBIC) is a hot-pluggable input/output device that plugs into a gigabit ethernet port/slot responsible for connecting the port to a fiber optic network. GBIC can be used and interchanged on various Cisco products, and can be mixed port by port with 1000BaseSX, 1000BaseLX/LH or 1000BaseZX interfaces that conform to IEEE 802.3 z. Further, Cisco is offering a 1000BaseLX/LH interface that fully complies with the IEEE 802.3z1000BaseLX standard, but has a transmission distance on single mode fiber of up to 10 kilometers, 5 kilometers more than the normal 1000BaseLX interface. In summary, as new functions are continuously developed, it will be easier to upgrade these modules to the latest interface technologies, thereby maximizing customer investment.

These conventional plug-in designs have been successful in the past, but they tend not to meet the goals of continued miniaturization in the industry. It is desirable to miniaturize transceivers to increase port density associated with network connections such as switchboxes, cable patch panels, wiring closets, and computer input/output (I/O). Conventional pluggable module configurations are unable to meet these parameter requirements.

A new standard has been published and is referred to herein as the hot-plug (SFP) standard, which is an abbreviation for Small Form-factor plug, and may be simply understood as an upgraded version of GBIC. The SFP module has a half of volume reduction compared with the GBIC module, and the number of ports which is more than one time can be configured on the same panel. The other functions of the SFP module are substantially identical to the GBIC. Some switch vendors call SFP modules as miniaturized GBIC (MINI-GBIC).

At present, the QSFP-DD (Small Form-factor plug-able Double sensitivity) is developed, and the QSFP-DD specification is published, which defines a high-speed communication module with eight channels. The running speed of each channel is 25Gbit/s or 50Gbit/s, so that the QSFP-DD module supports 200Gbit/s or 400Gbit/s Ethernet application. At the same time of speed improvement, the speed is more suitable for miniaturization design. After the SFP and QSFP are fixed to the circuit board, the matching with the circuit board and the space utilization rate are also the design importance, the utilization rate of the internal space of the electronic equipment can be integrally improved, the integration level is improved, in addition, along with the continuous improvement of the transmission rate, the whole size is continuously reduced, the subsequent technical difficulty is also higher and higher, such as the heat dissipation design requirement of the product, the whole structural strength of the product, the structural process requirement of injection molding, the structural stability of the light guide part of internal assembly and the like.

Therefore, there is a need to provide a new high-speed electrical connector to solve the above-mentioned problems.

[ Utility model ] content

An object of the present application is to provide a new high-speed electrical connector, the light guide assembly of which is accurate in positioning.

In order to achieve the above purpose, the present application is implemented by the following technical solutions:

a high-speed electric connector comprises an insulating piece, wherein the front end of the insulating piece is provided with a first slot and a second slot which are open, the first slot and the second slot are arranged at intervals along the vertical direction, a plurality of signal terminals are fixed in the insulating piece, each signal terminal comprises a tail part used for being connected to a circuit board, a contact part used for being matched with a butting device and a body part used for mutually connecting the tail part and the contact part together, the body part is that the signal terminals form a signal path between the tail part and the contact part, one part of the contact part of the signal terminal protrudes to the first slot, the other part of the contact part of the signal terminal protrudes to the second slot, a shielding cage covers the periphery of the insulating piece fixed with the signal terminals, the front end of the shielding cage forms an insertion hole corresponding to the first slot and the second slot, and the insertion direction is along, the utility model discloses a shield cage, including shielding cage, insert the space, the space is divided into three region, and light guide member, along plug direction lengthwise extension, light guide member is set firmly in between two space partitions, light guide member quilt it is spacing along the upper and lower direction and the left and right directions of perpendicular to plug direction that the inserted hole of shielding cage and the leading edge of insulating part are at a certain distance in interval and form the space of inserting, the shielding cage includes two space partitions, two space partitions will insert the space interval and become three region, and light guide member extends along plug direction lengthwise, light guide member.

Furthermore, the two sides of the partition board in the left-right direction are respectively bent to form limit buckles, and the limit buckles are limited on the left side and the right side of the light guide piece.

Further, still include metal support piece, metal support piece is fixed with the insulating part, and lies in between the first slot and the second slot of insulating part along the upper and lower direction, metal support piece is spacing with leaded light spare along the plug direction.

Furthermore, the metal support member extends backwards to form two installation sheets, the two installation sheets are buckled on the surfaces of the left side and the right side of the insulating member, the rear end of the light guide member extends backwards and downwards to form two supporting foot parts, the two supporting foot parts are correspondingly clamped on the outer side surfaces of the two installation sheets of the metal support member, each installation sheet extends along the left-right direction to form at least two limiting sheets, and the limiting sheets limit the light guide member along the plugging direction.

Furthermore, each mounting plate is further extended to form an elastic arm, the elastic arm is in elastic contact with the shielding cage, the metal supporting piece is extended backwards to form two supporting pieces, the two supporting pieces are oppositely arranged along the vertical direction, the two supporting pieces correspondingly abut against the space between the two partition plates, each supporting piece is formed with an elastic piece, and the elastic pieces are in elastic contact with the partition plates.

Furthermore, the insulating part comprises a plurality of sheet-shaped insulating supporting pieces and an insulating body, the first slot and the second slot are formed in the front end face of the insulating body, four signal terminals are fixed in each sheet-shaped insulating supporting piece, the contact parts of the two signal terminals located above the sheet-shaped insulating supporting piece protrude to the first slot, the contact parts of the two signal terminals located below the sheet-shaped insulating supporting piece protrude to the second slot, and the plurality of sheet-shaped insulating supporting pieces fixed with the signal terminals are stacked along the left-right direction and then are assembled and fixed with the insulating body.

Further, each of the sheet-shaped insulating supports has an air passage formed therethrough at a position adjacent to the signal terminals, and no air passage is provided between at least two adjacent signal terminals, the air passage has the same extension tendency as the body portion 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 groove is formed in the corresponding sheet-shaped insulating support, 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 passage 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 exposing the horizontal portion to the air at least partially, a portion exposing the vertical portion to the air, And a portion that at least partially exposes the inclined portion to the air.

Furthermore, the shielding cage comprises a rear end plate located at the rear end, a heat dissipation area is formed between at least a local position of the rear end face of the insulating part and the rear end plate, and heat dissipation holes are formed in the positions, corresponding to the heat dissipation area, of the rear end plate in a penetrating mode.

Further, still include the light-proof piece, light-proof piece front end position forms two leaded light posts, the light-proof piece is fixed in on two leaded light posts, expose the preceding terminal surface of two leaded light posts, and cover the all around of two leaded light posts, form the ventilation hole that the fore-and-aft direction link up on the light-proof piece.

Further, the insulating body and the plurality of sheet-shaped insulating support members fixed with the signal terminals form a module, the module is provided with two modules which are arranged adjacently, the light guide member is fixed on each module, the shielding cage comprises a blocking plate, the blocking plate is clamped between the two modules, and the blocking plate is used for separating the light guide members of the two modules on the full length of the light guide member.

Compared with the prior art, the method has the following beneficial effects: the light guide part of the height electric connector is accurate in assembling and positioning.

[ description of the drawings ]

FIG. 1 is a perspective view of a high speed electrical connector of the present application;

FIG. 2 is a perspective view of the high speed electrical connector of FIG. 1 from another perspective;

fig. 3 is a partial exploded perspective view of the high speed electrical connector of the present application, showing a perspective view of the shielding cage with portions of the structure separated from the mold members;

FIG. 4 is a partial exploded perspective view of the high speed electrical connector of the present application;

FIG. 5 is a further exploded perspective view of the high speed electrical connector of FIG. 4;

FIG. 6 is a perspective view of a connector portion of the high speed electrical connector of the present application;

FIG. 7 is a further exploded perspective view of the connector portion shown in FIG. 6;

fig. 8 is a side view of the sheet-like insulating support member with signal terminals secured thereto of the high-speed electrical connector of the present application;

fig. 9 is a cross-sectional view of a second embodiment of the high-speed electrical connector of the present application, where the cross-sectional position of fig. 9 is shown as a line a-a in the embodiment of fig. 1, the shielding cage, two spacers, and light-shielding member structures in fig. 9 are slightly different from the embodiment of fig. 1, and a light-guiding member structure is not shown in fig. 9, these structures are not important in fig. 9, fig. 9 (the second embodiment of the high-speed electrical connector of the present application) mainly shows a structure in which a heat dissipation area is formed between a rear end plate of the shielding cage and a rear end surface of the module, and a heat dissipation hole structure is formed at a position of the rear end plate corresponding to the heat dissipation;

FIG. 10 is a side view of FIG. 9;

fig. 11 is an enlarged view of the structure within the dashed circle in fig. 1.

[ detailed description ] embodiments

It should be noted that the embodiments and features of the embodiments in the application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Throughout the description of the application, it is to be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the application can be understood in a specific context by those of ordinary skill in the art.

In the description of the application, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, for the accuracy of the description of the present application, the direction of the present application shall be referred to fig. 1 uniformly, wherein the X-axis extending direction is the left-right direction (wherein the X-axis is forward right), the Y-axis extending direction is the front-back direction (i.e. the inserting and pulling direction, wherein the Y-axis is forward back), and the Z-axis extending direction is the up-down direction (wherein the Z-axis is forward up).

Referring to fig. 1 to 11, a high-level electrical connector according to the present invention is disclosed, which includes a connector portion (not numbered) and a shielding cage 4, wherein the connector portion is electrically connected to a mating circuit board, the shielding cage 4 covers the periphery of the connector portion, and the shielding cage 4 is fixedly connected to the mating circuit board.

Referring to fig. 4 to 7, the connector portion includes an insulating body 3, a plurality of sheet-like insulating supports 1, and a plurality of signal terminals 2, where the plurality of signal terminals 2 at least include a differential signal terminal pair. The insulation body 3 is made of an insulation material through injection molding, two open-shaped first slots 31 and two open-shaped second slots 32 are formed at the front end of the insulation body 3, the first slots 31 and the second slots 32 are arranged at intervals along the vertical direction,

referring to fig. 4 to 8, each of the sheet-shaped insulating supports 1 is substantially a flat sheet and is made of an insulating material by injection molding. Four signal terminals 2 are fixed in each sheet-shaped insulating support member 1, each signal terminal 2 comprises a tail portion 21 which protrudes downwards out of the sheet-shaped insulating support member 1 and is used for being connected to a circuit board, a contact portion 22 which protrudes forwards out of the sheet-shaped insulating support member 1 and is used for being matched with a butting device, and a body portion 23 which connects the tail portion 21 and the contact portion 22 with each other, and the body portion 23 is used for forming a signal path between the tail portion 21 and the contact portion 22 for the signal terminal 2.

Referring to fig. 3 to 7, after being stacked in the left-right direction, the plurality of sheet-shaped insulating supporting members 1 are inserted and fixed to the insulating body 3 from front to back, the contact portions 22 of the two signal terminals 2 located above on the same sheet-shaped insulating supporting member 1 protrude into the first slot 31, and the contact portions 22 of the two signal terminals 2 located below protrude into the second slot 32. In the present application, the insulation body 3 and the plurality of sheet-shaped insulation supports 1 are collectively referred to as an insulation member (not numbered). The insulating body 3 and the plurality of sheet-like insulating supports 1 to which the signal terminals 2 are fixed are collectively referred to as a module (not numbered).

Referring to fig. 3 to 7, the connector portion of the high-speed electrical connector of the present application further includes an insulating fastener 8, wherein the insulating fastener 8 is fastened to two sides of the insulating body 3 from front to back, and frames (encloses) the plurality of sheet-shaped insulating supporting members 1. In this application, insulating fastener 8 is located the rear end below position of module.

Referring to fig. 1 to 7, the shielding cage 4 is made of a metal plate, the front end of the shielding cage 4 is formed with an insertion opening 41 corresponding to the first insertion slot 31 and the second insertion slot 32, and the insertion opening 41 of the shielding cage 4 and the front end edge of the insulating body 3 are spaced apart by a certain distance along the insertion direction to form an insertion space 40. The shielding cage 4 includes a top plate 401, a bottom plate 401 disposed opposite to the top plate 401 and located right below the top plate 401, two side plates 403 connecting both sides of the top plate 401 and the bottom plate 402, and a rear end plate 42 located at a rear end position. The top plate 401, the bottom plate 402, the two side plates 403, and the rear end plate 42 form a substantially rectangular parallelepiped metal cage which is open forward, and the insertion opening 41 is formed in front. An opening-shaped structure is formed between the rear end edge position of the bottom plate 402 and the rear end plate 42, so that the end position of the insertion space 40 is communicated with the outside, and the tail portions 21 of the signal terminals 2 of the connector portion protrude out of the shielding cage 4 from the rear end position of the bottom plate 402.

Referring to fig. 3 to 5, the shielding cage 4 further includes two partition plates 44, the two partition plates 44 partition the insertion space 40 into three regions stacked in the up-down direction, the first slot 31 corresponds to an upper region of the three regions, and the second slot 32 corresponds to a lower region of the three regions. The high-speed electrical connector further comprises a light guide member 5, wherein the light guide member 5 extends lengthwise along the plugging direction, and the light guide member 5 is clamped between the two partition plates 44 (i.e. the middle area of the three areas). The rear end edges of the two partition plates 44 are correspondingly inserted into and fixed to the insulating body 3, the left and right side edges of the two partition plates 44 are correspondingly fixed to the two side plates 403 in a buckling mode (specifically, buckling holes (not marked) are formed in the corresponding positions of the two side plates 403, buckling pieces (not marked) are formed by bending the two partition plates 44, and the buckling pieces are limited after being inserted into the buckling holes.

Referring to fig. 3 to 5, the light guide 5 is limited by the two partition plates 44 along the vertical direction and the horizontal direction perpendicular to the inserting and pulling direction. The two sides of the partition 44 along the left-right direction are respectively bent to form a limit buckle 442, the limit buckle 442 is limited on the left side and the right side of the light guide 5, the limit buckle 442 is used for precisely positioning the light guide 5, and the size difference or tolerance between the light guide 5 and the middle area of the three areas can be effectively absorbed through the arrangement of the limit buckle 442. Specific examples are: when the dimension of the light guide 5 in the left-right direction is greater than the width of the middle region of the three regions, the light guide 5 can be accurately positioned, for example: when the widths of the respective portions of the light guide 5 in the front-rear direction (the widths in the left-right direction) are not uniform, the respective positions of the light guide 5 in the front-rear direction can be easily positioned accurately.

Referring to fig. 3 to 7, the high-speed electrical connector of the present application further includes a metal supporting member 7, wherein the metal supporting member 7 is fixed to the insulating body 3, is located between the first slot 31 and the second slot 32 of the insulating member along the vertical direction, and is located between the two partition plates 44, and the metal supporting member 7 limits the light guiding member 5 along the inserting and pulling direction. Specifically, the metal support 7 extends backwards to form two mounting pieces 71, the two mounting pieces 71 are fastened on the surfaces of the left side and the right side of the insulation body 3, the rear end of the light guide 5 extends backwards and downwards to form two supporting feet 51, the two supporting feet 51 are correspondingly clamped on the outer side surfaces of the two mounting pieces 71 of the metal support 7, each mounting piece 71 extends along the left-right direction to form at least two limiting pieces 711, and the limiting pieces 711 limit the light guide 5 along the plugging direction.

In addition, each of the mounting pieces 71 is further inclined rearward and extended to form a cantilever-shaped elastic arm 712, the elastic arm 712 is in elastic contact with the shielding cage 4, the metal supporting member 7 is extended rearward to form two supporting pieces 72, the two supporting pieces 72 are oppositely arranged along the vertical direction, the two supporting pieces 72 correspondingly abut against between the two partition plates 44, each of the supporting pieces 72 is formed with an elastic piece 721, and the elastic piece 721 is in elastic contact with the partition plates 44.

In this application, metal support 7 is installed on leaded light 5 from lower to upper successively, then will be fixed with metal support 7's leaded light 5 by backward before assembling to between two space bars 44, will be fixed with two space bars 44 of metal support 7 and leaded light 5 at last by inserting after forward and establish on being fixed in insulator 3.

Referring to fig. 7 and 8, an air channel 11 is formed on each sheet-shaped insulating support 1 at a position adjacent to the signal terminals 2, and no air channel 11 is formed between at least two adjacent signal terminals 2. In this embodiment, the air passage 11 is not provided between the first signal terminal 2(a1) and the second signal terminal 2(a2) from the bottom to the top. An 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(a 4).

Of course, in other embodiments, the air channel 11 may be disposed between the first signal terminal 2(a1) and the second signal terminal 2(a2) from the bottom to the top. 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(a 4).

Of course, in other embodiments, the air channel 11 may be disposed between the first signal terminal 2(a1) and the second signal terminal 2(a2) from the bottom to the top. An air passage 11 is provided between the second signal terminal 2(a2) and the third signal terminal 2 (A3). No air passage 11 is provided between the third signal terminal 2(A3) and the fourth signal terminal 2(a 4).

Of course, in other embodiments, the adjacent signal terminals 2 without the air channels 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(a 4).

In the present application, the absence of the air channel 11 between two adjacent signal terminals mainly takes into consideration the ease of injection molding, and improves the overall structural strength of the sheet-shaped insulating support 1, and of course, the air channel 11 is provided in the vicinity of the individual signal terminal 2 to help reduce crosstalk (air is a medium having a loss smaller than that of the insulating material forming the sheet-shaped insulating support 1), and to help improve high-frequency signal transmission.

Referring to fig. 7 and 8, the air channel 11 and the body portion 23 of the adjacent signal terminal 2 extend in the same direction. The main body 23 of each signal terminal 2 is partially exposed to the air, and an air channel 10 is formed on the corresponding sheet-shaped insulating support 1, the main body 23 of the 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, and the air channel 10 includes a portion exposing the horizontal portion 231 at least partially to the air, a portion exposing the vertical portion 232 at least partially to the air, and a portion exposing the inclined portion 233 at least partially to the air.

Referring to fig. 9 and 10, a second embodiment of the high-speed electrical connector of the present application is shown, in which a heat dissipation area 400 ' is formed between a local position of a rear end surface of the insulating member (composed of an insulating body 3 ' and a plurality of sheet-shaped insulating supporting members 1 ') and a rear end plate 42 ', and a heat dissipation hole 43 ' is formed through the rear end plate 42 ' at a position corresponding to the heat dissipation area 400 '. Specifically, the heat dissipation area 400 ' is formed between the rear surface of the plurality of sheet-shaped insulating supports 1 ' and the rear end plate 42 ', and more specifically, the heat dissipation area 400 ' is formed between the rear surface of the plurality of sheet-shaped insulating supports 1 ' and the rear end plate 42 ' except for the surface of the portion covered by the insulating fastener 8 '. The heat dissipation section 400 'and the heat dissipation holes 43' can improve air circulation, thereby improving heat dissipation performance. In the present application, the insulation clip 8 is designed to be smaller at a high speed in the vertical direction, so that the heat dissipation area 400' is easily made larger as much as possible. In the present application, the height of the heat dissipation section 400 'is not less than two times of the height of the insulating clip 8' along the up-down direction, and preferably, the height of the heat dissipation section 400 'is not less than three times of the height of the insulating clip 8'.

Referring to fig. 3 to 5, the high-speed electrical connector of the present application further includes a light-shielding member 6, two light-guiding columns 52 are formed at the front end of the light-guiding member 5 at intervals along the left-right direction, the light-shielding member 6 is fixed on the two light-guiding columns 52, the front end surfaces of the two light-guiding columns 52 are exposed, the peripheries of the two light-guiding columns 52 are covered, and a plurality of ventilation holes 60 penetrating in the front-back direction are formed on the light-shielding member 6. The vent holes 60 communicate the front end of the middle area (the area formed between the two partition plates) of the three areas with the outside for better heat dissipation.

Referring to fig. 1 to 5, the connector portions of the high-speed electrical connector 1 of the present application are two and adjacently disposed along the left-right direction, the light guide member 5 is fixed on each connector portion, the shielding cage 4 includes a blocking plate 45, the blocking plate 45 is clamped between the two connector portions, and the blocking plate 45 divides the insertion space 40 formed by the shielding cage 4 into two sections along the left-right direction. The baffle 45 spaces the light guides 5 of the two connector portions apart over the full length of the light guides 5 to prevent light channeling between the light guides 5 of the two connector portions.

Referring to fig. 7, 8 and 11, each sheet-shaped insulating support 1 is formed with a thin portion 14 at a connecting position of the body portion 23 and the tail portion 21, and the two adjacent sheet-shaped insulating supports 1 are formed with an air groove 140 at the thin portion 14, wherein the air groove 140 is communicated with the air slot 10. The air groove 140 is wider than the body portion 23 of the signal terminal 2 at the position of the air groove 140. The signal terminals 2 are not exposed to the air grooves 140. The air passage 11 does not communicate with the air groove 140. The provision of the air groove 140 facilitates improved impedance continuity, with a beneficial effect on the signal integrity of the signal terminal 2. In the present application, the air groove 140 is formed on one side surface of each sheet-shaped insulating support 1 in the left-right direction.

Although the present application has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present application.

The above description is only a part of the embodiments of the present application, and not all embodiments, and any equivalent changes to the technical solutions of the present application, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present application.

Claims (10)

1. A high speed electrical connector, comprising:

an insulating piece, wherein the front end of the insulating piece forms a first slot and a second slot which are in an open shape, the first slot and the second slot are arranged at intervals along the vertical direction,

a plurality of signal terminals secured within the dielectric member, each of the signal terminals including a tail portion for connection to a circuit board, a contact portion for mating with a mating device, and a body portion interconnecting the tail and contact portions together, the body portion being such that the signal terminals form a signal path between the tail portion and the contact portion,

one part of the contact part of the signal terminal protrudes into the first slot, the other part of the contact part of the signal terminal protrudes into the second slot,

a shielding cage covering the periphery of the insulating piece fixed with the signal terminal, wherein the front end of the shielding cage is provided with an insertion opening corresponding to the first slot and the second slot, a certain distance is arranged between the insertion opening of the shielding cage and the front end edge of the insulating piece along the insertion direction to form an insertion space,

the shielding cage comprises two partition plates which partition the insertion space into three regions,

a light guide member extending lengthwise along the plugging direction, the light guide member being fixedly disposed between the two partition plates,

the light guide piece is limited by the two partition plates along the vertical direction and the left-right direction perpendicular to the plugging direction.

2. A high speed electrical connector as in claim 1 wherein: the partition board is bent along the left side and the right side to form limiting buckles, and the limiting buckles are limited on the left side and the right side of the light guide piece.

3. A high speed electrical connector as in claim 1 wherein: still include metal support piece, metal support piece is fixed with the insulating part, and lies in between the first slot and the second slot of insulating part along the upper and lower direction, metal support piece is spacing with leaded light spare along the plug direction.

4. A high speed electrical connector as in claim 3 wherein: the metal support piece extends backwards to form two installation pieces, the two installation pieces are buckled on the surfaces of the left side and the right side of the insulating piece, the rear end of the light guide piece extends backwards and downwards to form two supporting foot parts, the two supporting foot parts are correspondingly clamped on the outer side surfaces of the two installation pieces of the metal support piece, at least two limiting pieces extend along the left-right direction of each installation piece, and the light guide piece is limited along the plugging direction by the limiting pieces.

5. A high speed electrical connector as in claim 4 wherein: each still extend on the installing piece and be formed with the elastic arm, elastic arm and shielding cage elastic contact, metal support piece backward extends has two backing sheets, two backing sheets set up along upper and lower direction relatively, two backing sheets correspond and contradict between two space bars, each be formed with the flexure strip on the backing sheet, flexure strip and space bar elastic contact.

6. A high speed electrical connector as in claim 1 wherein: the insulating part comprises a plurality of sheet-shaped insulating supporting pieces and an insulating body, the front end face of the insulating body forms a first slot and a second slot, each sheet-shaped insulating supporting piece is internally fixed with four signal terminals, the contact parts of the two signal terminals positioned above stretch to the first slot, the contact parts of the two signal terminals positioned below stretch to the second slot, and the plurality of sheet-shaped insulating supporting pieces fixed with the signal terminals are stacked along the left-right direction and then are assembled and fixed with the insulating body.

7. A high speed electrical connector as in claim 6 wherein: each sheet-shaped insulating support member is provided with an air channel which penetrates through the position close to the signal terminal, an air channel is not arranged between at least two adjacent signal terminals, the air channel has the same extension trend with the body part of the adjacent signal terminal, the surface of the body part of at least one signal terminal is partially exposed in the air, an air groove is formed on the corresponding sheet-shaped insulating support member, the body part of at least one signal terminal comprises a horizontal part extending horizontally, a vertical part extending vertically and an inclined part connecting the horizontal part and the vertical part, the air channel comprises a part close to the horizontal part, a part close to the vertical part and a part close to the inclined part, and the air groove comprises a part exposing the horizontal part to the air at least partially, a part exposing the vertical part to the air, And a portion that at least partially exposes the inclined portion to the air.

8. A high speed electrical connector as in claim 1 wherein: the shielding cage comprises a rear end plate located at the rear end, a heat dissipation area is formed between at least the local position of the rear end face of the insulating part and the rear end plate, and heat dissipation holes are formed in the positions, corresponding to the heat dissipation area, of the rear end plate in a penetrating mode.

9. A high speed electrical connector as in claim 1 wherein: still include to separate the light, leaded light spare front position forms two leaded light posts, separate the light and be fixed in on two leaded light posts, expose the preceding terminal surface of two leaded light posts, and cover around two leaded light posts, separate and form the ventilation hole that the fore-and-aft direction link up on the light.

10. A high speed electrical connector as in claim 6 wherein: the shielding cage comprises a blocking plate, the blocking plate is clamped between the two modules, and the blocking plate is used for spacing the light guide members of the two modules on the full length of the light guide members.

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