CN210985105U - Shielding cage assembly and electric connector assembly - Google Patents

Abstract

The utility model provides a shielding cage subassembly and electric connector subassembly, wherein shielding cage subassembly includes shielding cage and base module, the shielding cage definition is formed with the butt joint space that is used for with butt joint connector butt joint and forms the butt joint mouth in the place ahead, the shielding cage is fixed in base module top to it has the overhead region to make to be formed with between shielding cage below and the base module. The built on stilts region can be used for holding electronic components, improves the utilization ratio of circuit board area, and the built on stilts region of connector subassembly below does benefit to the circulation of air simultaneously, cooperates the structure of base module, improves the radiating effect.

Description

Shielding cage assembly and electric connector assembly

[ 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 shielding cage assembly and an electric connector assembly.

[ background of the invention ]

GBIC is a hot-pluggable input/output device that plugs into a gigabit Ethernet port/slot, responsible for connecting the port to the fiber network GBIC can be used and interchanged on various Cisco products, and can be mixed on a port-by-port basis with 1000BaseSX, 1000Base L X/L H, or 1000BaseZX interfaces that conform to the IEEE 802.3z standard, more specifically, Cisco is providing a 1000Base L X/L H interface that conforms completely to the IEEE 802.3z1000Base L X standard, but has a transmission distance on single mode fiber of up to 10 kilometers, 5 kilometers more than the normal 1000Base L X interface.

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 important in design, so that the utilization rate of the internal space of the electronic device can be integrally improved, the integration level is improved, and in addition, along with the continuous improvement of the transmission rate, the heat dissipation design requirement of the product is higher and higher, and the traditional design can not meet the performance requirement which is improved day by day at present.

Accordingly, there is a need for an improved interface connector of the type known in the art that overcomes the deficiencies of the prior art.

[ Utility model ] content

An object of the application is to provide a new shielding cage subassembly and electric connector subassembly, can improve the utilization ratio of circuit board area.

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

a shielding cage assembly comprises a shielding cage and a base module, wherein a butt joint space for butt joint with a butt joint connector is formed in the shielding cage in a defined mode, a butt joint port is formed in the front of the shielding cage, the shielding cage is fixed above the base module, and an overhead area is formed between the lower portion of the shielding cage and the base module.

Further, the shielding cage subassembly still includes the circuit board the base module is fixed to the circuit board surface, the base module is located between shielding cage and the circuit board, form between shielding cage and base module and the circuit board built on stilts region, the circuit board is equipped with electronic components in the subsides of the regional place surface of built on stilts.

Further, the base module is made of a metal material, and the base module and the circuit board are fixed through SMT.

Furthermore, the shielding cage comprises a top plate, two side plates positioned on two sides of the top plate and a bottom plate which is connected below the two side plates and arranged opposite to the top plate, wherein the top plate, the two side plates and the bottom plate are jointly surrounded to form the butt joint space and form a butt joint opening in the front.

Further, the base module comprises two side bearing seats correspondingly supported below the two side plates, each side bearing seat comprises a supporting plate and a protective plate formed by extending the outer side edge of the supporting plate in the vertical direction, the lower side edge of the side plate and the two side edges of the bottom plate are correspondingly borne on the upper surface of the supporting plate of the side bearing seat, and the protective plate of the side bearing seat is correspondingly attached to and surrounded on the periphery of the lower side edge of the side plate.

Further, the shielding cage is still including the rear end plate that is located the roof rear side, the base module is including supporting the back bearing seat in the rear end plate below, the back bearing seat includes the backup pad and extends the protection shield that forms by the outside edge of backup pad along upper and lower direction, the lower side edge of rear end plate is corresponding to bear the upper surface in the backup pad of back bearing seat, the protection shield correspondence of back bearing seat is pasted and is enclosed the lower side edge periphery of locating the rear end plate.

Furthermore, a plurality of buckling holes are formed in the supporting plate in a penetrating mode, and locking mechanisms fixed with the buckling holes of the supporting plate are formed in the corresponding positions of the side plates and the rear end plate.

Further, the base module further comprises a cross beam seat supported below the rear side edge of the base plate, the cross beam seat is connected with the two side bearing seats, a plurality of buckling holes are formed in the cross beam seat in a penetrating mode, and a locking mechanism fixed with the buckling holes of the cross beam seat is correspondingly formed on the rear side edge of the base plate.

Furthermore, the lower surface of the base module protrudes downwards to form a plurality of supporting blocks, the surface of the circuit board correspondingly forms grounding golden fingers, and the supporting blocks correspondingly support the grounding golden fingers of the circuit board in a butting mode.

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

an electric connector assembly comprises the shielding cage assembly as described above, and further comprises a socket connector, wherein the socket connector is an SFP or QSFP socket connector, the socket connector is fixed on a circuit board, the shielding cage is covered on the periphery of the socket connector, the socket connector is positioned at the rear end position of a butt joint space, the socket connector comprises an insulating body and a plurality of signal terminals fixed in the insulating body, and each signal terminal extends outwards out of the insulating body to form a terminal pin electrically connected with the circuit board.

Compared with the prior art, the method has the following beneficial effects: in this application, the base module makes shielding cage below and circuit board surface built on stilts, and built on stilts region can be used for pasting electronic components for the circuit board surface that is located shielding cage below position can be utilized, provides the utilization ratio of circuit board area, and built on stilts region does benefit to the circulation of air simultaneously, cooperates the structure of base module, improves the radiating effect. In addition, the locking mechanism of the shielding cage is matched with the corresponding buckling hole formed on the base module to form self-locking, and the assembly is convenient. In addition, the structure of the base module can protect the lower part of the shielding cage with structural strength, so that the whole electric connector assembly structure is more stable.

[ description of the drawings ]

Fig. 1 is a perspective view of an electrical connector assembly of the present application;

fig. 2 is a cross-sectional view of the electrical connector assembly of the present application taken along line a-a of fig. 1;

fig. 3 is a partial exploded perspective view of the electrical connector assembly of the present application showing a perspective view of the circuit board module separated from the high speed electrical connector;

fig. 4 is a partial exploded perspective view of the electrical connector assembly of the present application, showing the circuit board module and the base in perspective view after separation from the shielding cage;

fig. 5 is an exploded perspective view of the electrical connector assembly of the present application;

fig. 6 is a perspective view of the electrical connector assembly of the present application of fig. 5 from another angle;

fig. 7 is a partial exploded isometric view of the electrical connector assembly of the present application, showing a perspective view of a portion of the heat dissipating unit separated from the shielding cage;

fig. 8 is a cross-sectional view of the electrical connector assembly of the present application taken along line B-B of 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 sake of accuracy of the description of the present application, the application refers to the direction uniformly with reference to fig. 1, wherein the X-axis extending direction is the left-right direction (wherein the X-axis positive direction is the right direction), the Y-axis extending direction is the front-back direction (wherein the Y-axis positive direction is the back), and the Z-axis extending direction is the up-down direction (wherein the Z-axis positive direction is the up direction).

Referring to fig. 1 to 8, an electrical connector assembly of the present application includes a circuit board module 1, a connector assembly 2 fixed to a surface of the circuit board module 1, and a base module 3. The base module 3 is fixed to the underside of the connector assembly 2 for carrying the connector assembly 2. The upper and lower surface of circuit board module 1 can be used to paste electronic components such as dress chip, base module 3 elevates connector assembly 2 for circuit board module 1 surface that is located the position under connector assembly 2 can be utilized, for example paste partial electronic component and improve circuit board module 1's integrated level, makes connector assembly 2 below form the overhead area simultaneously, does benefit to the air flow, improves the radiating effect.

The circuit board module 1 includes a circuit board 11 and an electronic component 12, where the electronic component 12 may be a chip, a capacitor element, a resistor element, a sensor element, and the like, which is not limited herein. The circuit board 11((Printed circuit board) may be a single-sided board, a double-sided board, or a multilayer circuit board, and is not limited thereto.

In the present application, the connector assembly 2 includes six receptacle connectors (not shown) arranged side by side along the left-right direction, and is enclosed in the shielding cage 21 on the periphery of the six receptacle connectors and fixed to the heat dissipation module 22 above the shielding cage 21. The receptacle connector is actually an SFP (Small Form-factor plug) or QSFP (Small Form-factor plug) receptacle connector, and the basic structure thereof includes an insulating body (not shown) and a plurality of signal terminals (not shown) fixed in the insulating body, and the signal terminals extend outward to Form terminal pins (not shown) electrically connected to the circuit board 11. The detailed structure of the receptacle connector will not be described further.

Referring to fig. 4 to 6, the shielding cage 21 is made of a metal plate, and includes a cover 211, a bottom plate 212, and a partition 213. The cover body 211 is formed with a flat top plate 2111, two side plates 2112 formed by bending the left and right sides of the top plate 2111 downward, and a rear end plate 2113 formed by bending the rear end edge of the top plate 2111 downward. The lower edges of the two side plates 2112 and the rear end plate 2113 are respectively formed with a plurality of latching mechanisms 20, and each latching mechanism 20 includes a pair of cantilever-shaped latching arms 201 formed by extending downward the lower edge of the corresponding side plate 2112 or the rear end plate 2113. Each of the latch arms 201 extends in the up-down direction and its free end is positioned to form a hook 2011. The pairs of snap arms 201 are spaced apart from each other to form a displacement space therebetween.

As shown in fig. 4 to 6, the bottom plate 212 is substantially flat, and both left and right edges thereof are respectively bent upward to form a locking plate 2121, and the locking plate 2121 is locked with the lower edge of the side plate 2112 (in the present application, a locking through hole (not labeled) is formed on the locking plate 2121, and is locked with a convex hull (not labeled) formed on the side plate 2112). The two sides of the bottom plate 212 are formed with an abdicating hole 2120 corresponding to the locking mechanism 20, and the locking arm 201 on the side plate 2112 passes through the abdicating hole 2120 downwards to protrude in a cantilever shape. The bottom plate 212 and the cover 211 together enclose a docking space 200 for docking with a docking connector and form a docking port 201 in front. An escape space 202 is formed between the rear side edge of the bottom plate 212 and the rear end plate 2113, the receptacle connector is fixed to the rear end position of the docking space, and the terminal pins of the receptacle connector are led out from the escape space 202.

The partition plates 213 partition the docking space 200 into a plurality of partitions along the left-right direction, the partition plates 213 are fixed to the top plate 2111 and the bottom plate 212, specifically, the upper and lower side edges of the grid plates 213 extend and bend to form the locking pieces 2130, and the locking pieces 2130 pass through the locking slits formed at the corresponding positions of the top plate 2111 and the bottom plate 212 to be locked and fixed to the top plate 2111 and the bottom plate 212.

Referring to fig. 4 to 6, the shielding cage 21 of the present embodiment further includes a rear limiting plate 214, and the rear limiting plate 214 is attached to the front surface (the inner side surface of the abutting space 20) of the rear end plate 2113 and is abutted by the rear end edge of the partition 213. The rear limiting plate 214 includes a main body plate 2141 and a plurality of elastic plates 2142 formed by forward tilting and extending of the main body plate 2141. The rear end edge of the partition plate is bent to form a buckling piece 2130, and the buckling piece 2130 penetrates through the main body plate 2141 and the rear end plate 2113 and is buckled with the rear surface of the rear end plate 2113. In some embodiments, the main body plate 2141 may be further fixed to the rear end plate 2113 by welding, and the flexible plate 2142 elastically protrudes into the mating space 200, and the flexible plate 2142 abuts against the rear end position of the receptacle connector when the receptacle connector is assembled into the shielding cage 21.

The rear end edge of the bottom plate 212 extends downwards to form a plurality of locking mechanisms 20, in the application, the locking mechanisms 20 formed on the bottom plate 212 and the locking mechanisms 20 formed on the cover body 211 have the same structure, each locking mechanism 20 also comprises a pair of cantilever-shaped buckling arms 201, and a hook 2011 is formed at the free end of each buckling arm 201. And will not be described repeatedly herein.

Referring to fig. 1 to 8, the base module 3 is made of a metal material (preferably, a material having a certain structural strength, a good thermal conductivity, and a good shielding property, such as a zinc alloy, a copper alloy, and an aluminum alloy), and is formed in a frame shape, and includes a side bearing seat 31 supported below two side plates 2112, a rear bearing seat 32 supported below a rear end plate 2113, and a cross beam seat 33 supported below a rear side edge of a bottom plate 212. The cross-sectional shape of the side bearing seat 31 is substantially "" (see fig. 4 to 6 and 8), and includes a support plate 301 and a protection plate 302 formed by extending the outer edge of the support plate 301 in the vertical direction. The rear bearing seat 32 has substantially the same shape as the side bearing seat 31, and also has a cross-sectional shape substantially like an "acoustic" and also includes a supporting plate 301 and a protective plate 302 extending upward from the outer edge of the supporting plate 301. The crossbeam seat 33 is used for connecting the middle positions of the two side bearing seats 31, and the crossbeam seat 33 and the rear bearing seat 32 are arranged in parallel. In this application, the upper surface of the protection plate 302 is flush with the upper surface of the beam seat 33.

The supporting plate 301 is provided with a fastening hole 3011 through the side close to the corresponding protecting plate 302. A fastening hole 3011 is formed in the cross beam seat 33 in a vertical direction. Shielding cage 21 assembles to base module 3 from top to bottom, and bears in the upper surface of backup pad 301 and crossbeam seat 33 correspondingly, specifically is: the lower edges of the side plates 2112 are correspondingly supported on the upper surface of the support plate 301 of the side supporting seat 31, the lower edges of the rear end plates 2113 are correspondingly supported on the upper surface of the support plate 301 of the rear supporting seat 32, the two side edges of the bottom plate 212 are correspondingly supported on the upper surface of the support plate 301 of the side supporting seat 31, and the rear end edge of the bottom plate 212 is correspondingly supported on the upper surface of the beam seat 33. The locking mechanism 20 of the side plate 2112 correspondingly passes through the fastening hole 3011 of the side bearing seat 31 downward and is locked with the fastening hole 3011 (correspondingly hung on the lower side of the fastening hole 3011 by the hook 2011), the locking mechanism 20 of the rear end plate 2113 correspondingly passes through the fastening hole 3011 of the rear bearing seat 32 downward and is locked with the fastening hole 3011, and the locking mechanism 20 of the bottom plate 212 correspondingly passes through the fastening hole 3011 of the cross beam seat 33 downward and is locked with the fastening hole 3011.

Referring to fig. 1 to fig. 4 and fig. 7, the protection plate 302 is correspondingly attached to and surrounds the periphery of the shielding cage 21 (specifically, the periphery of the lower edges of the side plates 2112 and the rear end plate 2113). The lower surface of the base module 3 protrudes downwards to form a plurality of supporting blocks 34, specifically, the lower surfaces of the supporting plate 301, the protecting plate 302 and the beam seat 33 all protrude to form a plurality of supporting blocks 34. The supporting blocks 34 are supported on the Surface of the circuit board 11 correspondingly in a butting manner, and are specifically supported on the grounding gold fingers (not numbered) on the Surface of the circuit board 11 in a butting manner, and can be fixed with the grounding gold fingers through welding (in the present application, the base module 3 and the circuit board 11 are fixed through a Surface Mount Technology (SMT) process), at least one supporting block 34 is formed on each of two sides of each locking mechanism 20, each locking mechanism 20 is clamped between the two corresponding supporting blocks 34 to play a role in protection, in addition, the supporting blocks 34 are arranged so that a space which is located under the connector component 2 and in the middle of the base module 3 can be communicated with the outside, the air circulation is increased, the heat dissipation is facilitated, a plurality of positioning columns 35 are formed by downward protruding of the lower Surface of the base module 3, and the positioning columns 35 are correspondingly matched with through holes (not marked) on the circuit board 11, for positioning and guiding the connector assembly 2 when it is assembled to the circuit board 11.

The heat dissipation module 22 is made of a metal material and is composed of a plurality of heat dissipation units 221, each heat dissipation unit 221 is in a long strip shape, the cross section of each heat dissipation unit 221 is approximately n-shaped, and a planar contact surface 222 is formed. The plurality of heat dissipating units 221 are arranged in a single direction (front-back direction or left-right direction) and form a plurality of through-groove spaces 220. The contact surface 222 of each heat dissipating unit 221 is attached to the upper surface of the top plate 2111 and fixed by welding. The top plate 2111 region right below the heat dissipation module 22 is of a flat-plate-shaped seamless structure, so that the maximum effective contact area with the heat dissipation module 22 is ensured.

Of course, in other embodiments, the cross-section of the heat dissipating unit 221 may be designed into other shapes, such as "Z", "h", "m", semicircular, triangular, or quadrilateral, and it is only necessary to design a planar contact surface 222 corresponding to the top plate 2111 to be in contact with the top plate 2111, and to ensure the maximum effective contact area, while extending a sufficient heat dissipating area upward. In this application, the partition 213 is provided with the heat dissipation modules 22 on the top plates 2111 of a plurality of intervals formed by partitioning the docking space 200 in the left-right direction, and the heat dissipation modules 22 above the intervals are independent of each other.

The connector assembly 2 further comprises a heat conduction elastic sheet 215, wherein the heat conduction elastic sheet 215 is formed by punching and bending a metal plate and comprises a flat-plate-shaped main body plate 2151, elastic fins 2152 formed by downward punching and bending the main body plate 2151 and a plurality of butt joint fins 2153 formed by upward and backward folding and extending the front end of the main body plate 2151. The middle position of each elastic fin 2152 is arched downwards (towards the inside of the docking space 200) to form an arc shape and extends from front to back, the front end of each elastic fin 2152 is integrally arranged with the main body plate 2151, and the rear end of each elastic fin 2152 is a free end. The shape of the abutting fin 2153 is similar to that of the elastic fin 2152 (arc shape), the arching direction is opposite, and the middle of the abutting fin 2153 is arched upwards.

In this application, the heat conductive elastic piece 215 is assembled to the top plate 2111 of the shielding cage 21 from front to back, the main body plate 2151 is attached to the lower surface (inner surface) of the top plate 2111, and the elastic fins 2152 elastically protrude into the docking space 200 for contacting with a docking connector (not shown). The docking fin 2153 is located above the top plate 2111. That is, the front end edge portion of the top plate 2111 is sandwiched by the heat conductive elastic piece 215 in the vertical direction. In some embodiments, the top plate 2111 and the heat conducting elastic sheet 215 may be further fixed by welding, particularly between the main body plate 2151 and the top plate 2111. The main body plate 2151 and the top plate 2111 form surface contact, and the contact part of the main body plate 2151 and the top plate 2111 does not have any recess or through hole structure, so that the maximum effective contact area is ensured, and the heat dissipation effect is increased.

In this application, base module 3 makes, shielding cage 21 below and circuit board 11 surface are built on stilts, and especially bottom plate 212 below and circuit board 11 surface are built on stilts, and built on stilts region can be used for pasting electronic components 12 such as chip for circuit board 11 surface that is located the position under connector assembly 2 can be utilized, and built on stilts region does benefit to the circulation of air simultaneously, cooperates base module 3's structure, improves the radiating effect. In addition, the locking mechanism 20 of the shielding cage 21 cooperates with the corresponding fastening hole 3011 formed on the base module 3 to form mechanical self-locking, so that the assembly is convenient. In addition, the structure of the base module 3 (the protection plate 302) can protect the lower part of the shielding cage 21 with structural strength, and the whole structure of the electric connector assembly can be more stable.

In addition, in this application, be located circuit board 11 coplanar the socket connector, base module 3 and electronic components 12 through once surface mounting with circuit board 11 welded fastening, then insert the equipment to base module 3 with shielding cage 21 again. The socket connector and the soldering effect between the electronic component 12 and the circuit board 11 can be checked in advance before the assembly of the shielding cage 21. Shielding of the detection by the shielding cage 21 is avoided.

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 shielding cage assembly, characterized by: the shielding cage is defined to form a butt joint space for butt joint with a butt joint connector and a butt joint port in front, and is fixed above the base module, so that an overhead area is formed between the lower part of the shielding cage and the base module.

2. The shielding cage assembly of claim 1 wherein: the shielding cage assembly further comprises a circuit board, the base module is fixed to the surface of the circuit board, the base module is located between the shielding cage and the circuit board, the shielding cage, the base module and the circuit board form the overhead area, and the circuit board is provided with electronic components in the overhead area in a surface pasting mode.

3. The shielding cage assembly of claim 2 wherein: the base module is made of metal materials, and the base module and the circuit board are fixed through SMT.

4. The shielding cage assembly of claim 2 wherein: the shielding cage comprises a top plate, two side plates located on two sides of the top plate and a bottom plate which is connected below the two side plates and arranged opposite to the top plate, wherein the top plate, the two side plates and the bottom plate are jointly surrounded to form a butt joint space and form a butt joint opening in the front.

5. The shielding cage assembly of claim 4 wherein: the base module comprises two side bearing seats correspondingly supported below the two side plates, each side bearing seat comprises a supporting plate and a protective plate formed by extending the outer side edge of the supporting plate in the vertical direction, the lower side edge of each side plate and the two side edges of the bottom plate are correspondingly borne on the upper surface of the supporting plate of the side bearing seat, and the protective plate of the side bearing seat is correspondingly attached to and surrounds the lower side edge of each side plate.

6. The shielding cage assembly of claim 5 wherein: the shielding cage is still including the back end plate that is located the roof rear side, the base module is including supporting the back bearing seat in back end plate below, the back bearing seat includes the backup pad and extends the protection shield that forms by the outside edge of backup pad along upper and lower direction, the lower side edge of back end plate is corresponding to bear the upper surface in the backup pad of back bearing seat, the protection shield correspondence of back bearing seat is pasted and is enclosed the lower side edge periphery of locating the back end plate.

7. The shielding cage assembly of claim 6 wherein: a plurality of buckling holes are formed in the supporting plate in a penetrating mode, and locking mechanisms fixed with the buckling holes of the supporting plate are formed in the corresponding positions of the side plates and the rear end plate.

8. The shielding cage assembly of claim 5 wherein: the base module further comprises a cross beam seat supported below the rear side edge of the base plate, the cross beam seat is connected with the two side bearing seats, a plurality of buckling holes are formed in the cross beam seat in a penetrating mode, and a locking mechanism fixed with the buckling holes of the cross beam seat is correspondingly formed on the rear side edge of the base plate.

9. The shielding cage assembly of claim 2 wherein: the lower surface of the base module protrudes downwards to form a plurality of supporting blocks, the surface of the circuit board correspondingly forms grounding golden fingers, and the supporting blocks correspondingly support the grounding golden fingers of the circuit board in a butting mode.

10. An electrical connector assembly comprising a shielding cage assembly according to any one of claims 2 to 9, characterized in that: the socket connector is an SFP or QSFP socket connector, the socket connector is fixed on a circuit board, the shielding cage is arranged on the periphery of the socket connector, the socket connector is positioned at the rear end of the butt joint space, the socket connector comprises an insulating body and a plurality of signal terminals fixed in the insulating body, and each signal terminal extends out of the insulating body outwards to form a terminal pin electrically connected with the circuit board.

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