An electrical connector assembly

Abstract

An electrical connector assembly includes an electrical connector module and a metal frame that are correspondingly assembled onto a circuit board. The electrical connector module includes a terminal module and a metal housing. The metal housing covers the periphery of the terminal module. The metal housing and the terminal module jointly define an insertion and extraction space and form an insertion port for a mating connector to be inserted. The metal housing includes two side plates that are oppositely arranged and located on both sides of the insertion and extraction space. The metal frame is located on the side of the metal housing close to the circuit board. The metal frame includes a bottom plate member. The bottom plate member is located at one end position close to the insertion port. The bottom plate member is located on the side of the insertion and extraction space close to the circuit board. The bottom plate member extends from one side plate of the metal housing to the other side plate. It has better heat dissipation performance and structural strength.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication transmission, and particularly to an electrical connector assembly.

Background Art

[0002] A Gigabit Interface Converter (GBIC) is a hot-pluggable input / output device that is inserted into a Gigabit Ethernet port / slot and is responsible for connecting the port to a fiber optic network. GBICs can be used and interchanged on various Cisco products and can be mixed with 1000BaseSX, 1000BaseLX / LH, or 1000BaseZX interfaces compliant with IEEE 802.3z on a per-port basis. Further, Cisco is offering a 1000BaseLX / LH interface that fully complies with the IEEE 802.3z 1000BaseLX standard, but its transmission distance on single-mode fiber is up to 10 kilometers, which is 5 kilometers farther than that of a normal 1000BaseLX interface. In short, with the continuous development of new functions, it will be easier to upgrade these modules to the latest interface technology, thus maximizing the benefits of customer investment.

[0003] In the past, these traditional plug-in designs have been successful, but they tend not to achieve the goal of continuous miniaturization in the industry. It is desirable to miniaturize transceivers to increase the port density associated with network connections such as distribution boxes, cable patch panels, wiring closets, and computer input / output (I / O). Traditional pluggable module configurations cannot meet these parameter requirements.

[0004] Currently, a new standard has been announced and is herein referred to as the Small Form-factor Pluggable (SFP) standard. SFP is an abbreviation for Small Form-factor Pluggable and can be simply understood as an upgraded version of GBIC. The volume of the SFP module is reduced by half compared to the GBIC module, and more than twice the number of ports can be configured on the same panel. Other functions of the SFP module are basically the same as those of the GBIC. Some switch manufacturers refer to the SFP module as a Miniature GBIC (MINI-GBIC).

[0005] Currently, it has developed to the QSFP-DD (Quad Small Form-factor Pluggable Double Density) stage, and the QSFP-DD specification has also been published, which defines a high-speed communication module with eight channels. Each channel operates at a rate of 25 Gbit / s or 50 Gbit / s, so the QSFP-DD module supports Ethernet applications at rates of 200 Gbit / s or 400 Gbit / s. While the rate is increasing, it is more inclined to a miniaturized design. After such SFP and QSFP are fixed to the circuit board, the cooperation with the circuit board and the space utilization rate are also the key points of the design, which can overall improve the space utilization rate inside the electronic device and increase the integration degree. In addition, with the continuous increase of the transmission rate, the heat dissipation design requirements of the product itself are also getting higher and higher, and the traditional design can no longer meet the increasingly improved performance requirements.

[0006] Therefore, it is necessary to improve such interface connectors in the prior art to overcome the above-mentioned defects in the prior art.

Summary of the Invention

[0007] The purpose of this application is to provide a new electrical connector assembly with better heat dissipation performance and structural strength.

[0008] To achieve the above purpose, this application is realized through the following technical solutions:

[0009] An electrical connector assembly includes an electrical connector module and a metal frame correspondingly assembled on a circuit board. The electrical connector module includes a terminal module and a metal housing. The metal housing covers the periphery of the terminal module. The metal housing and the terminal module jointly define a plugging space and form an insertion port for a mating connector to insert. The metal housing includes two side plates oppositely arranged and located on both sides of the plugging space. The metal frame is located on the side of the metal housing close to the circuit board. The metal frame includes a bottom plate member. The bottom plate member is located at one end close to the insertion port. The bottom plate member is located on the side of the plugging space close to the circuit board. The bottom plate member extends from one side plate of the metal housing to the other side plate.

[0010] Further, the metal frame further includes side frame portions correspondingly fixed at positions on each side plate close to the circuit board. The bottom plate member connects the two side plates.

[0011] Further, the electrical connector assembly further includes a spring piece member. The spring piece member is fixed on the bottom plate member. The spring piece member includes an inner spring arm protruding into the plugging space and an outer spring arm protruding in the outer direction of the plugging space. The inner spring arm is used for lapping with the mating connector, and the outer spring arm lapps with the back heat dissipation module to achieve heat conduction.

[0012] Furthermore, the spring sheet component is sleeved on the base plate component, and the spring sheet component includes an inner plate located on the surface of the base plate component close to the plug-in space and an outer plate located on the surface of the base plate component away from the plug-in space, the inner spring arm is formed on the inner plate, and the outer spring arm is formed on the outer plate, and the inner spring arm and / or the outer spring arm extend toward the insertion direction of the docking connector in a cantilevered shape or a simply supported shape.

[0013] Furthermore, the electrical connector assembly also includes a socket metal piece, which is arranged in front of the bottom plate component along the unplugging direction of the docking connector, and the two sides of the socket metal piece are spliced ​​or snap-fixed with the two side panels of the metal cover shell, and the socket metal piece and the metal cover shell are basically flush with the end edge of the insertion port, and the socket metal piece and the side panel are fixed with a socket spring sheet at the end edge of the insertion port, and the socket spring sheet forms an inner spring sheet extending into the plug-in space and an outer spring sheet extending toward the outside of the plug-in space.

[0014] Furthermore, the electrical connector assembly includes at least two electrical connector modules, and adjacent side panels of the metal cover of each of the electrical connector modules are integrally fixed by the same side frame body. The metal frame also includes a rear frame body located at an end of the metal cover away from the insertion port, and the rear frame body is integrally connected to the side frame body.

[0015] Furthermore, the side frame body, rear frame body and bottom plate component of the metal frame of the same metal cover are surrounded by a frame shape and a clearance opening is formed in the middle, and the terminal module is arranged at the clearance opening position. The terminal module includes an insulating body and a plurality of signal terminals fixed in the insulating body. Each of the signal terminals includes a fixing portion fixed in the insulating body, a contact portion extending from the fixing portion and protruding into the plug-in space, and a docking portion extending from the fixing portion and protruding out of the insulating body through the clearance opening.

[0016] Furthermore, each of the plug-in spaces cooperates with a plurality of the signal terminals, and the plurality of the signal terminals that cooperate with each of the plug-in spaces include at least a pair of high-speed terminals for transmitting high-speed differential signals, and the electrical connector assembly is one of an SFP socket connector, a QSFP socket connector, a QSFP-DD socket connector, or a CXP socket connector.

[0017] Furthermore, the side frame body includes a main body and wing portions extending from both sides of the main body near the circuit board, the wing portions are adjacent to the main body and penetrate through the thickness direction of the circuit board to form a locking hole, a locking plate is formed at a side of the side plate near the circuit board corresponding to the locking hole, the locking plate passes through the locking hole and is buckled on a side of the side frame body near the circuit board, and the side plate near the circuit board corresponds to the two side surfaces of the main body.

[0018] Further, in the pulling-out direction of the docking connector, the rear frame portion of the metal frame is located behind the terminal module, the rear end plate is located behind the rear frame portion, a gap is formed above the rear frame portion between the rear end plate and the terminal module, the rear end plate is formed with a ventilation hole penetrating along the plugging and unplugging direction of the docking connector, and the ventilation hole communicates the gap with the outside.

[0019] Further, the terminal module is separately arranged from the metal housing, and there is no mutual fixation between the terminal module and the metal housing. The metal frame is a die-cast metal part.

[0020] Further, a partial position of the metal frame located outside the metal housing is fixed to the circuit board by bolts.

[0021] Compared with the prior art, the present application has the following beneficial effects: It has good heat dissipation effect and structural strength.

Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the electrical connector assembly of the present application;

[0023] Figure 2 is a three-dimensional view of the electrical connector assembly of the present application seen from another angle;

[0024] Figure 3 is a partial three-dimensional exploded view of the electrical connector assembly of the present application, which shows a three-dimensional schematic diagram after the top heat dissipation module, the metal part and the heat sink bracket are separated from the metal housing. Further, the metal part and the heat sink bracket cooperate with each other;

[0025] Figure 4 is Figure 3 a further three-dimensional exploded view of the electrical connector assembly shown, which further shows a three-dimensional schematic diagram when the metal part and the heat sink bracket are separated on the basis of Figure 3 ;

[0026] Figure 5 is a partial three-dimensional exploded view of the electrical connector assembly of the present application, which shows a three-dimensional schematic diagram after the heat sink bracket, the top heat dissipation module, the circuit board and the back heat dissipation module are separated from the metal housing;

[0027] Figure 6 is a partial three-dimensional exploded view of the electrical connector assembly of the present application;

[0028] Figure 7 is a partial three-dimensional exploded view of the electrical connector assembly of the present application, which mainly shows a three-dimensional schematic diagram after the socket spring piece and the socket metal part are separated from the metal housing. In addition, the metal frame, the back heat dissipation module, the top heat dissipation module and the circuit board are removed;

[0029] Figure 8FIG. 0 is a partial perspective exploded view of the electrical connector assembly of the present application, which mainly shows a perspective schematic diagram of the socket spring piece, the socket metal part, the metal frame and one of the spring members separated from the metal housing. In addition, the metal frame, the back heat dissipation module, the top heat dissipation module and the circuit board are removed;

[0030] Figure 9 FIG. 1 is a partial perspective exploded view of the electrical connector assembly of the present application, which mainly shows a perspective schematic diagram of the socket spring piece, three of the spring members, and one of the connector modules separated from the metal frame. In addition, the metal frame, the back heat dissipation module, the top heat dissipation module and the circuit board are removed;

[0031] Figure 10 FIG. 2 is a partial perspective exploded view of the electrical connector assembly of the present application, which mainly shows a perspective schematic diagram of the socket spring piece, three of the spring members, two of the connector modules, and a metal part separated from the metal frame. Further, the mating relationship between a metal part and a corresponding metal housing is shown. In addition, the metal frame, the back heat dissipation module, the top heat dissipation module and the circuit board are removed.

DETAILED DESCRIPTION

[0032] It should be noted that, without conflict, the embodiments in the application and the features in the embodiments can be combined with each other. In addition, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the application can be understood according to specific situations.

[0033] In the description of the application, it should be understood that the terms "comprising" and "having" and any variations thereof used herein 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 necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0034] In addition, for the accuracy of the description of the present application, all directions related to the present application shall be Figure 1 For reference, wherein the extending direction of the X-axis is the left-right direction (wherein the positive direction of the X-axis is to the right), the extending direction of the Y-axis is the front-back direction (that is, the plugging direction, wherein the positive direction of the Y-axis is to the back), and the extending direction of the Z-axis is the up-down direction (that is, the thickness direction of the circuit board 200, wherein the positive direction of the Z-axis is up). The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0035] Please refer to Figures 1 to 10 As shown, the present application discloses an electrical connector assembly, which can be used for assembling to a communication device. The electrical connector assembly corresponds to at least one docking connector (not shown) to achieve signal transmission. The electrical connector assembly includes a circuit board 200, an electrical connector module (not labeled) fixed on the upper surface of the circuit board 200, a top heat dissipation module 5, and a back heat dissipation module 7. The top heat dissipation module 5 is fixed on the upper surface of the electrical connector module, and the back heat dissipation module 7 is fixed on the lower surface of the circuit board 200 and can achieve heat transfer with the electrical connector module.

[0036] Please refer to Figure 8 As shown, the electrical connector module includes a terminal module 1, a metal housing 2, a metal part 3, and a metal frame 4. The terminal module 1 includes an insulating body 11 and a plurality of signal terminals 12 fixed to the insulating body 11. Each of the signal terminals 12 includes a fixing portion (not labeled) fixed in the insulating body 11, a contact portion (not labeled) extending forward from the fixing portion out of the insulating body 11, and a docking portion (not labeled) extending downward from the fixing portion out of the insulating body 11. The contact portion is used for docking with the docking connector to achieve signal transmission. The docking portion is correspondingly electrically connected to the circuit board 200 to achieve signal transmission with the metal traces (not shown) on the circuit board 200.

[0037] Please refer to Figure 10 As shown, the metal housing 2 covers the outer periphery of the terminal module 1. The metal housing 2 includes two side plates 21 extending in the front-rear direction and the up-down direction, a top plate 22 extending in the front-rear direction and the left-right direction, and a rear end plate 23 extending in the up-down direction and the left-right direction. The top plate 22 connects the upper edges of the two side plates 21, and the rear end plate 23 connects the rear edge of the top plate 22 and is snap-fixed to the outside of the rear positions of the two side plates 21 to form three faces similar to a cuboid. The top plate 22 is substantially parallel to the upper surface of the circuit board 200.

[0038] Please refer to Figures 1 to 4 As shown, the terminal module 1 and the metal housing 2 jointly define a plug-in space 10 extending in the front-rear direction and form an insertion port 101 for the docking connector to insert. The contact portions of the signal terminals 12 are exposed into the plug-in space 10. In the present application, there are four independent terminal modules 1, four independent metal housings 2, and four independent metal parts 3. Of course, in another embodiment, the terminal module 1 can also be designed to be directly or indirectly integrally arranged at a local position. For example, it is integrally connected locally at the rear end position of the insulating body 11, or the insulating bodies 11 of the four terminal modules 1 are fixed together by another independent component (not shown), or other similar designs.

[0039] Please refer to Figures 8 to 10 As shown, the four metal housings 2 are arranged in the left - right direction. There is a gap between adjacent two metal housings 2, forming a gap 20. Specifically, the gap 20 is formed by the spacing of adjacent two side plates 21 of adjacent two metal housings 2. The metal frame 4 is formed by die - casting of metal powder, and includes a side frame part 401 fixed to the lower edge of the side plate 21 of the metal housing 2, a rear frame part 402 connecting the rear edge of the side frame part 401, and a bottom plate member 403 connecting the front positions of adjacent two side frame parts 401. The bottom plate member 403 is located below the corresponding insertion and extraction space 10.

[0040] Please refer to Figures 8 to 10 As shown, in this application, the side plates 21 of each metal housing 2 are fixedly connected to the side frame part 401 respectively. Specifically, a locking plate 214 is formed by extending the lower edge of the side plate 21 of the metal housing 2. A locking hole 42 penetrating in the up - down direction is formed at the corresponding position of the side frame part 401. The locking plate 214 of the metal housing 2 passes through the locking hole 42 and is buckled to the lower surface of the side frame part 401. Further, in this application, the side frame part 401 includes a main body part 4011 and wing parts 4012 respectively extending in the left - right direction from the positions near the lower part (near the circuit board 200) on the left and right sides of the main body part 4011. The locking hole 42 is formed at the position of the wing part 4012 adjacent to the main body part 4011. The lower part of the side plate 21 is correspondingly abutted against the left and right side surfaces of the main body part 4011. A clearance gap 20 is formed between the main body part 4011 of the metal frame 4 and the two side plates 21 of adjacent main body parts 4011.

[0041] Please refer to Figures 1 to 4 As shown, the metal part 3 is fixedly arranged in the gap 20. In this application, the metal part 3 is formed by stamping and bending a metal plate. A partial position of the metal part 3 extends in the left - right direction and further extends upward to form elastic arm parts 31. The elastic arm parts 31 elastically support the side plates 21 respectively. A stop part 211 is formed at the free end position of the side plate 21 corresponding to the elastic arm part 31. The free end of the elastic arm part 31 is stopped upward at the stop part 211. A locking hole 41 is formed in the side frame part 401 at the position of the gap 20 in the up - down direction (specifically, the locking hole 41 is formed on the main body part 4011). The metal part 3 extends downward at the position corresponding to the locking hole 41 to form a locking arm 34. The locking arm 34 passes through the locking hole 41 and is buckled to the side of the side frame part 401 close to the circuit board 200. In this application, the lower edge of the metal part 3 and / or the elastic arm part 31 of the metal part 3 is carried on the side frame part 401 (specifically, the upper surface of the main body part 4011).

[0042] Please refer to Figures 1 to 4As shown, in the present application, the metal part 3 is bent at the position of the spacing gap 20 near the insertion port 101 to form a support plate 32, and at least part of the structure of the support plate 32 is extended in the left-right direction and the up-down direction. The support plate 32 supports the side plate 21 in the left-right direction, and a plurality of through holes 320 are formed on the support plate 32 in the front-to-back direction. The through holes 320 are used for air circulation and heat dissipation. The metal part 3 is bent at the position of the spacing gap 20 near the insertion port 101 to form an elastic arm 33 extending in the insertion direction of the docking connector, and the elastic arm 33 is in a simply supported shape and elastically abuts against the corresponding side plate 21. The spacing gap 20 extends continuously from one end of the metal cover 2 to the other end in the front-to-back direction (specifically, it extends continuously from one end of the connector module to the other end). There is at least one metal part 3 in the same spacing gap 20, and the sum of the lengths of all metal parts 3 in the same spacing gap 20 in the front-to-back direction is not less than half of the length of the spacing gap 20 in the plug-in and unplug direction of the docking connector.

[0043] Please combine Figure 3 , Figure 4 and Figure 10 As shown, in the present application, the metal part 3 extends downward (toward the circuit board 200) at a position close to the insertion port 101 to form a buckle plate 35 (specifically, the buckle plate 35 is formed by further extending downward from the lower side edge of the support plate 32), and the metal frame 4 forms a buckle portion 42 corresponding to the position of the buckle plate, and the buckle plate 35 and the buckle portion 42 are buckled together to achieve mutual limitation in the up and down directions and / or left and right directions.

[0044] Please combine Figures 6 to 10 As shown, in the present application, the electrical connector assembly also includes a socket metal part 9, which is arranged in front of the bottom plate component 403 along the unplugging direction of the docking connector, and the two sides of the socket metal part 9 are spliced ​​and fixed to the two side panels 21 of the metal cover 2, and the socket metal part 9 and the metal cover 2 are basically flush with the end edge of the insertion port 101. The socket metal part 9, the top plate 22 and the side plate 21 are fixed with a socket spring piece 24 at the end edge of the insertion port 101, and the socket spring piece 24 is formed with an inner spring piece 241 extending into the plug-in space 10 and an outer spring piece 242 extending toward the outside of the plug-in space 10.

[0045] Please combine Figures 6 to 10 As shown, further, in the present application, the side frame body 401, the rear frame body 402 and the bottom plate member 403 of the metal frame 4 under the same metal cover shell 2 are surrounded by a frame shape and a clearance opening 300 is formed in the middle, and the terminal module 1 is arranged at the position of the clearance opening 300, and the docking portion of the signal terminal 12 extends downward and protrudes out of the insulating body 11 through the clearance opening 300 for docking with the circuit board 200 to realize signal transmission.

[0046] Further, in the present application, several signal terminals 12 of the same terminal module 1 are arranged in two rows in the up-down direction, and at least one row of the signal terminals includes at least a pair of high-speed terminals for transmitting high-speed differential signals. The electrical connector assembly is actually one of an SFP socket connector, a QSFP socket connector, a QSFP-DD socket connector, or a CXP socket connector.

[0047] Please refer to Figure 8 , Figure 9 and Figure 10 As shown, in the present application, the side plate 21 is formed with a ventilation hole 215 penetrating in the left-right direction. The metal housing 2 further includes a rear end plate 23 extending along the thickness direction of the circuit board 200 and the arrangement direction of the two plug-in spaces 10 (the rear end plate 23 is actually formed by bending the rear edge of the top plate 22 downward). The rear frame portion 402 of the metal frame 4 is located behind the terminal module 1, and the rear end plate 23 is located behind the rear frame portion 402; so that a gap 102 is formed above the rear frame portion 402 between the rear end plate 23 and the terminal module 1. The rear end plate 23 is formed with a ventilation hole (not shown) penetrating along the plug-in direction of the docking connector.

[0048] In the present application, the electrical connector assembly further includes a top heat dissipation module 5. The top heat dissipation module 5 is fixed on the outer surface of the top plate 22 of the metal housing 2. The top heat dissipation module 5 is formed with a mating hole 51 communicating with the spacing gap 20 at a position corresponding to the spacing gap 20 along the thickness direction of the circuit board 200.

[0049] Please combine with Figures 1 to 6 As shown, the electrical connector assembly further includes a heat sink bracket 6. The heat sink bracket 6 straddles above the top heat dissipation module 5 along the arrangement direction of the two plug-in spaces 10. The two ends of the heat sink bracket 6 along the arrangement direction of the two plug-in spaces 10 are formed with buckling arms 61 extending toward the circuit board 200. The buckling arms 61 are correspondingly buckled on the outer sides of the two side plates 21 at the two ends of the metal housing 2 along the arrangement direction of the two plug-in spaces 10. A buckle 36 is extended at a position on the side of the metal part 3 away from the circuit board 200, and the buckle 36 is correspondingly fixed to the heat sink bracket 6 by buckling.

[0050] Please combine with Figures 1 to 6As shown, in the present application, the back heat dissipation module 7 includes a back portion 71 and a thickening portion 72 that are attached to the lower surface of the circuit board 200, and heat conduction is achieved at least partially between the electrical connector module and the back heat dissipation module 7. Specifically, the circuit board 200 at least partially forms a relief hole 201 in a position corresponding to the connector module in the up-down direction. Specifically, in the front-back direction, the relief hole 201 is located at the front end position of the circuit board 200 (the position close to the insertion port 101), and the relief hole 201 penetrates the thickness direction of the circuit board 200 and is open forward. Heat conduction is achieved by overlapping each other between the electrical connector module and the back heat dissipation module 7 through the relief hole 201. More specifically, the electrical connector assembly further includes a spring piece member 8, and the spring piece member 8 is fixed to the bottom plate member 403 of the metal frame 4.

[0051] Please refer to Figures 6 to 10 As shown, the spring piece member 8 includes an inner side plate 801 that is attached to the upper surface (the surface away from the circuit board 200) of the bottom plate member 403 and an outer side plate 802 that is attached to the lower surface (the surface close to the circuit board 200) of the bottom plate member 403. The inner side plate 801 and the outer side plate 802 are arranged oppositely in the up-down direction and are integrally connected at the front edge position, and the bottom plate member 403 is clamped between the inner side plate 801 and the outer side plate 802. A part of the inner side plate 801 is formed with an inner spring arm 81 by stamping and bending and extending from front to back. The inner spring arm 81 protrudes into the plugging and unplugging space 10 to contact the docking connector to achieve heat transfer and at the same time achieve an effective plugging and unplugging force between the docking connector and the electrical connector assembly. A part of the outer side plate 802 is formed with an outer spring arm 82 by stamping and bending and extending from front to back. The outer spring arm 82 is used for elastic overlapping with the back heat dissipation module 7 to achieve heat conduction. Specifically, at least a part of the thickening portion 72 protrudes into the relief hole 201 and correspondingly overlaps with the outer spring arm 82 to achieve heat conduction. In this setting, the inner spring arm 81 and / or the outer spring arm 82 extend in a cantilever shape or a simply supported shape in the insertion direction of the docking connector.

[0052] Please refer to Figure Figure 2 、 Figure 5 Level Figure 6As shown, the electrical connector assembly further includes a plurality of fixing pins 202. The fixing pins 202 pass through the back heat dissipation module 7 and the circuit board 200 to integrally fix the back heat dissipation module 7, the circuit board 200, and the metal frame 4. Specifically, the fixing pins 202 are threadedly locked with the side frame portion 401 of the metal frame 4. A partial position of the metal frame 4 outside the metal housing 2 is fixed to the circuit board 200 by bolts (not labeled). In this application, the metal housing 2 is a metal die-casting. A partial position of the metal housing 2 can be manufactured to have a relatively thick thickness and strong plasticity. This enables the electrical connector assembly to have strong structural strength on at least one side of the circuit board 200, and at the same time has a better heat dissipation effect. In particular, the design of the bottom plate member 403 enables the high-heat generating parts on the docking connector to effectively conduct and dissipate heat through the bottom plate member 403.

[0053] Since the metal member 3 made of metal material has faster heat conduction, in combination with the design of this application, the metal member 3 is arranged in the spacer gap 20 and contacts the side plate 21 of the metal housing 2 and the side frame portion 401 of the metal frame 4 at multiple locations. At the same time, in cooperation with the through holes 320 on the support plate 32, the ventilation holes 215 on the side plate 22 and the rear end plate 23, and the mating holes 51 on the top heat dissipation module 5, while ensuring a large metal heat dissipation area, air circulation can be achieved, making the overall have a good heat dissipation effect. In addition, in order to have a better heat dissipation effect, the back heat dissipation module 7 includes a thickened portion 72 protruding in the up and down direction into the relief hole 201. In the up and down direction, the overlapping area of the back heat dissipation module 7 and the electrical connector assembly is greater than one-half of the total area of the electrical connector assembly in the extending direction of the circuit board 200.

[0054] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them. Although this application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of this application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of this application.

[0055] The above is only a partial implementation manner of this application, not all implementation manners. Any equivalent changes made by those of ordinary skill in the art to the technical solutions of this application by reading the specification of this application are covered by the claims of this application.

Claims

1. An electrical connector assembly, comprising a plurality of electrical connector modules and a metal frame correspondingly assembled onto a circuit board. Each of the electrical connector modules includes a terminal module and a metal housing. The metal housing covers the periphery of the terminal module. The metal housing and the terminal module jointly define an insertion / extraction space and form an insertion port for a mating connector to be inserted. The metal housing includes two side plates oppositely disposed and located on both sides of the insertion / extraction space. The metal frame is located on the side of the metal housing close to the circuit board. It is characterized in that: The metal frame includes a plurality of side frame portions and a bottom plate member. The bottom plate member is located at one end position close to the insertion port and connects the front end positions of two adjacent side frame portions. The bottom plate member is located on the side of the insertion / extraction space close to the circuit board. The bottom plate member extends from one of the side plates of the metal housing to the other side plate; Two side plates of each metal housing are correspondingly fixed to two adjacent side frame portions; A gap is formed between the two metal housings at intervals. A part of the side frame portion is disposed in the corresponding gap. Both ends of the gap along the insertion / extraction direction of the mating connector communicate with the outside to form an air channel; A top heat dissipation module, fixed above the plurality of metal housings; A metal piece, fixedly disposed in the gap. The electrical connector assembly further includes a heat sink bracket. The heat sink bracket straddles above the top heat dissipation module along the arrangement direction of the insertion / extraction space. The upper end of the metal piece is correspondingly fixed to the heat sink bracket, and the lower end of the metal piece is correspondingly fixed to the side frame portion.

2. The electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly further includes a spring piece member. The spring piece member is fixed to the bottom plate member. The spring piece member includes an inner spring arm protruding into the insertion / extraction space and an outer spring arm protruding in the direction outside the insertion / extraction space. The inner spring arm is used for lapping with the mating connector, and the outer spring arm lapping with the back heat dissipation module realizes heat conduction.

3. The electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly further includes a spring piece member. The spring piece member is sleeved on the bottom plate member. The spring piece member includes an inner plate located on the surface of the bottom plate member close to the insertion / extraction space side and an outer plate located on the surface of the bottom plate member away from the insertion / extraction space side. The inner spring arm is formed on the inner plate, and the outer spring arm is formed on the outer plate. The inner spring arm and / or the outer spring arm extend in a cantilever shape or a simply supported shape in the direction of the mating connector insertion.

4. The electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly further includes a socket metal piece. Along the extraction direction of the mating connector, the socket metal piece is disposed in front of the bottom plate member. Both sides of the socket metal piece are correspondingly spliced and fixed or snap-fixed to the two side plates of the metal housing. The socket metal piece and the metal housing are basically flush at the edge of the insertion port. The socket metal piece and the side plate are fixedly provided with socket spring pieces at the edge of the insertion port. The socket spring pieces form an inner spring piece extending into the insertion / extraction space and an outer spring piece extending in the direction outside the insertion / extraction space.

5. The electrical connector assembly according to claim 2, wherein: The adjacent side plates of the metal cover of each electrical connector module are fixed integrally by the same side frame body. The metal frame also includes a rear frame body located at an end of the metal cover away from the insertion port, and the rear frame body is integrally connected to the side frame body.

6. The electrical connector assembly according to claim 5, wherein: The side frame body, rear frame body and bottom plate component of the metal frame of the same metal cover are surrounded by a frame shape and a clearance opening is formed in the middle. The terminal module is arranged at the clearance opening position. The terminal module includes an insulating body and a plurality of signal terminals fixed in the insulating body. Each of the signal terminals includes a fixing portion fixed in the insulating body, a contact portion extending from the fixing portion and protruding into the plug-in space, and a docking portion extending from the fixing portion and protruding out of the insulating body through the clearance opening.

7. The electrical connector assembly according to claim 6, wherein: Each of the plug-in spaces cooperates with a plurality of the signal terminals, and the plurality of the signal terminals that cooperate with each of the plug-in spaces include at least a pair of high-speed terminals for transmitting high-speed differential signals. The electrical connector assembly is one of an SFP socket connector, a QSFP socket connector, a QSFP-DD socket connector, or a CXP socket connector.

8. The electrical connector assembly according to claim 5, wherein: The side frame body includes a main body and wing portions extending from both sides of the main body near the circuit board, wherein the wing portions are adjacent to the main body and penetrate through the thickness direction of the circuit board to form a locking hole, and a locking plate is formed at a side of the side plate near the circuit board corresponding to the locking hole, and the locking plate passes through the locking hole and is buckled on a side of the side frame body near the circuit board, and the side plate near the circuit board corresponds to the two side surfaces of the main body.

9. The electrical connector assembly according to claim 5, wherein: Along the unplugging direction of the docking connector, the rear frame body of the metal frame is located at the rear position of the terminal module, and the metal cover shell also includes a rear end plate extending along the up and down directions and the left and right directions. The rear end plate is fixed to the outer side of the rear end position of the two side plates by snaps, and the rear end plate is located at the rear position of the rear frame body. A gap is formed between the rear end plate and the terminal module above the rear frame body, and a vent hole is formed through the rear end plate along the plugging and unplugging direction of the docking connector, and the vent hole connects the gap with the outside.

10. The electrical connector assembly according to claim 1, wherein: The terminal module is separately arranged from the metal cover, the terminal module and the metal cover are not fixed to each other, and the metal frame is a metal die-casting.

11. The electrical connector assembly according to claim 1, wherein: The metal frame is located at a local position outside the metal cover and is fixed to the circuit board by bolts.

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