Connector assembly

Abstract

The present application provides a connector assembly, which includes a shielding housing, a receptacle connector, and a heat sink. The shielding housing has a top wall, a receiving cavity in the interior, a socket at the front end and communicated with the receiving cavity, and a window formed in the top wall and communicated with the receiving cavity. The receptacle connector is arranged at the rear section of the receiving cavity. The heat sink is arranged on the top wall, and includes a heat sink base, the bottom surface of the heat sink base extends downwardly into the receiving cavity through the window and directly faces the top surface of the receptacle connector, and the bottom surface of the heat sink base is provided with a front stop portion protruding downwardly and adapted to stop a plug-in module. In some embodiments, the heat sink base further includes a heat pipe extending straightly rearwardly.

Description

TECHNICAL FIELD

[0001] The present invention relates to a connector assembly, and more particularly, to a connector assembly with a heat sink. BACKGROUND

[0002] Chinese patent publication CN101930100A (corresponding to US patent No. 7,794,241) discloses a connector, the guide frame of which includes a stamped metal body defining a housing having a top wall, a bottom wall and side walls. A receptacle connector is mounted at the rear of the cavity of the guide frame. The top wall of the guide frame has a large opening above the cavity which receives a heat sink. The heat sink includes an engagement surface which is mounted into the cavity, the engagement surface of the heat sink being in physical contact with and abutting against the inserted plug-in module. The top wall of the guide frame includes a front portion, a rear portion and opposite lateral portions which define the periphery of the opening. The portions of the top wall also define a seat for the heat sink. The top wall supports the heat sink when the heat sink is mounted in the opening. The rear portion of the top wall includes a front stop in the form of a downwardly extending retaining tab which projects slightly inwardly into the opening and downwardly into the cavity. The stop, which is fixedly formed on the top wall, engages the rear surface of the plug-in module to prevent the plug-in module from passing rearwardly through the guide frame beyond a predetermined distance. However, since the top wall is still present above the receptacle connector, the heat sink is still separated from the receptacle connector by the top surface of the rear portion of the top wall, which inevitably affects the heat dissipation efficiency. Moreover, due to the presence of the rear portion of the top wall, although the engagement surface of the heat sink extends into the cavity through the opening, the bottom surface of the heat sink at the rear portion of the top wall must be raised to the top surface of the rear portion of the top wall, causing the bottom surface of the heat sink to have a step at the rearwardly extending portion, especially in the heat sink which contains a heat pipe, the heat pipe must be bent as a result. SUMMARY

[0003] Therefore, one object of the present invention is to provide a connector assembly which can improve at least one problem in the prior art.

[0004] Accordingly, in some embodiments, the connector assembly of the present invention includes a shield housing, a receptacle connector, and a heat sink. The shield housing has a top wall, a receiving cavity in the interior, a receptacle opening at the front end and communicating with the receiving cavity, and a window formed rearwardly in the top wall and communicating with the receiving cavity. The receptacle connector is disposed at the rear of the receiving cavity, the window of the shield housing extending rearwardly to expose the top surface of the receptacle connector. The heat sink is disposed on the top wall, the heat sink including a heat sink base, the bottom surface of the heat sink base extending downwardly into the receiving cavity through the window and directly facing the top surface of the receptacle connector, the bottom surface of the heat sink base being provided with a front stop portion protruding downwardly and adapted to stop a plug-in module at the bottom surface of the heat sink base facing the receptacle connector.

[0005] In some embodiments, the shielding case further has a rear wall at the rear end, the bottom surface of the heat dissipation base is provided with a rear stop portion protruding downward relative to the rear wall, and the rear stop portion is limited in the rear direction by the rear wall.

[0006] In some embodiments, the window of the shielding case extends rearward and passes through the rear wall to form a notch at the upper edge of the rear wall, and the bottom surface of the heat dissipation base extends straight rearward and passes out of the notch of the rear wall by a distance.

[0007] In some embodiments, the heat dissipation base comprises a base plate having a bottom plate portion recessed downward and extending into the window, and the bottom surface of the heat dissipation base is located at the bottom surface of the bottom plate portion of the base plate.

[0008] In some embodiments, the base plate further has a front wing portion connected to the bottom plate portion and located at the top surface of the top wall, and two side wing portions.

[0009] In some embodiments, each side wing portion of the base plate of the heat dissipation base is formed with a slit, and the connector assembly further comprises a fastener for mounting the heat dissipation base to the shielding case, the fastener having a pressing plate pressing against the heat dissipation base, and two fastening plates extending downward from both sides of the pressing plate, the two fastening plates passing through the slits of the two side wing portions to be fastened to the shielding case.

[0010] In some embodiments, the bottom surface of the bottom plate portion is provided with protrusions extending in the front-rear direction and protruding downward, the front ends of the protrusions collectively constituting the front stop portion, and the rear ends of the protrusions collectively constituting the rear stop portion.

[0011] In some embodiments, the bottom surface of the bottom plate portion is provided with protrusions extending laterally and protruding downward, the protrusions located in front constituting the front stop portion, and the protrusions located in rear constituting the rear stop portion.

[0012] In some embodiments, the bottom surface of the bottom plate portion is provided with a protrusion protruding downward, the front side of the protrusion constituting the front stop portion, and the rear side of the protrusion constituting the rear stop portion.

[0013] Therefore, the connector assembly of the present application, in some embodiments, comprises a shielding shell, a receptacle connector, and a heat sink. The shielding shell has a top wall, a receiving cavity in the interior, a receiving opening at the front end and communicating with the receiving cavity, and a window formed in the top wall and communicating with the receiving cavity, the window extending rearwardly and penetrating through the rear end of the shielding shell. The receptacle connector is arranged at the rear section of the receiving cavity. The heat sink is arranged on the top wall, and the heat sink comprises a heat sink base, the heat sink base comprises a heat pipe, the bottom surface of the heat sink base extends downwardly into the receiving cavity through the window and directly faces the top surface of the receptacle connector, and the bottom surface of the heat sink base and the heat pipe extend rearwardly out of the rear end of the shielding shell by a distance.

[0014] In some embodiments, the heat sink base further comprises a base plate having a bottom plate portion recessed downwardly and extending into the window, the bottom surface of the heat sink base is located at the bottom surface of the bottom plate portion of the base plate, and the heat pipe is arranged at the top surface of the bottom plate portion, the bottom plate portion and the heat pipe extend rearwardly out of the rear end of the shielding shell by a distance, and the heat sink further comprises heat sink fins arranged on the base plate of the heat sink base.

[0015] In some embodiments, the bottom surface of the bottom plate portion is provided with a front stop portion protruding downwardly and adapted to stop a plug-in module at the position facing the receptacle connector.

[0016] In some embodiments, the shielding shell further has a rear wall at the rear end, the window of the shielding shell extends rearwardly and penetrates through the rear wall to form a notch at the upper edge of the rear wall, the bottom plate portion extends rearwardly and penetrates out of the notch of the rear wall by a distance, the bottom surface of the bottom plate portion is provided with a rear stop portion protruding downwardly at the position relative to the rear wall, and the rear stop portion is limited by the rear wall in the rearward direction.

[0017] In some embodiments, the base plate further has a front wing portion and two side wing portions connected to the bottom plate portion and arranged on the top surface of the top wall.

[0018] In some embodiments, each side wing portion of the base plate of the heat sink forms a slit, and the connector assembly further comprises a fastener for mounting the heat sink on the shielding shell, the fastener has a pressing plate pressing against the heat sink, and two fastening plates extending downwardly from both sides of the pressing plate, the two fastening plates penetrate the slits of the two side wing portions to be fastened on the shielding shell.

[0019] In some embodiments, the bottom surface of the bottom plate portion is provided with protrusions extending in the front-rear direction and protruding downwardly, the front ends of the protrusions jointly constitute the front stop portion, and the rear ends of the protrusions jointly constitute the rear stop portion.

[0020] In some embodiments, the bottom surface of the bottom plate portion is provided with a plurality of protrusions extending laterally and protruding downward, the front ones of the plurality of protrusions constituting the front stop portion, and the rear ones of the plurality of protrusions constituting the rear stop portion.

[0021] In some embodiments, the bottom surface of the bottom plate portion is provided with a protrusion protruding downward, the front side of the protrusion constituting the front stop portion, and the rear side of the protrusion constituting the rear stop portion.

[0022] The present application has at least the following effects: the rearward extension of the window of the shielding shell to expose the top surface of the socket connector allows the heat sink to directly face the socket connector without obstruction at a lower position through the window, and allows the bottom surface or heat pipe of the heat sink to extend straight rearward, thereby improving the heat dissipation efficiency. The front stop portion for stopping the plug-in module and the rear stop portion for limiting the rear wall rearward are arranged on the bottom surface of the heat dissipation base, which further extends the heat sink into the accommodating cavity through the front stop portion and the rear stop portion, and makes the heat sink closer to the socket connector to further improve the heat dissipation efficiency. Moreover, the front stop portion can move upward with the heat sink, which optimizes the overall structure and has a more limiting effect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Other features and effects of the present application will be clearly presented in the embodiments with reference to the accompanying drawings.

[0024] Figure 1 is a perspective view of a first embodiment of a connector assembly of the present application and a plug-in module;

[0025] Figure 2 is an exploded perspective view of the first embodiment, in which the socket connector of the first embodiment is omitted;

[0026] Figure 3 is an exploded perspective view of the first embodiment from a different perspective; Figure 3

[0027] Figure 4 is a bottom view of the first embodiment;

[0028] Figure 5 is an incomplete sectional view taken along line A-A in Figure 4

[0029] Figure 6 is a perspective view of a shielding shell of the first embodiment;

[0030] Figure 7 is an exploded perspective view of a heat sink of the first embodiment;

[0031] Figure 8 is a perspective view of the heat sink of the first embodiment from a different perspective; Figure 7 ​​is an exploded perspective view of the connector assembly of the first embodiment;

[0032] Figure 9 is a bottom view of the heat sink of the second embodiment of the connector assembly of the present application;

[0033] Figure 10 is a cross-sectional view taken along line B-B in FIG. 8; Figure 9

[0034] Figure 11 is a cross-sectional view of the first embodiment of the connector assembly of the present application, showing the fastener of the first embodiment pressing against the heat pipes of the heat sink, with the socket connector of the first embodiment omitted;

[0035] Figure 12 is a perspective view of the heat sink of the second embodiment of the connector assembly of the present application, viewed from the bottom;

[0036] Figure 13 is a perspective view of the heat sink of the third embodiment of the connector assembly of the present application, viewed from the bottom;

[0037] Figure 14 is a perspective view of the heat sink of the fourth embodiment of the connector assembly of the present application, viewed from the bottom;

[0038] Figure 15 is a perspective view of the heat sink of the fifth embodiment of the connector assembly of the present application, viewed from the bottom;

[0039] Figure 16 is a perspective view of the heat sink of the sixth embodiment of the connector assembly of the present application, viewed from the bottom;

[0040] Figure 17 is a perspective view of the heat sink of the seventh embodiment of the connector assembly of the present application, viewed from the bottom;

[0041] Figure 18 is a perspective view of the heat sink of the eighth embodiment of the connector assembly of the present application, viewed from the bottom;

[0042] Figure 19 is a perspective view of the heat sink of the ninth embodiment of the connector assembly of the present application, viewed from the bottom; and

[0043] Figure 20 is a perspective view of the heat sink of the tenth embodiment of the connector assembly of the present application, viewed from the bottom.

[0044] The reference numerals are explained as follows:

[0045] 10 connector assembly

[0046] 1 shield case ​

[0047] 11 top wall

[0048] 12 bottom wall

[0049] 121 convex hull

[0050] 13 side wall

[0051] 131 clasp

[0052] 14 back wall

[0053] 141 notch

[0054] 15 insertion foot

[0055] 16 receiving cavity

[0056] 161 insertion opening

[0057] 17 window

[0058] 18 bottom opening

[0059] 19 grounding member

[0060] 191 elastic finger

[0061] 2 socket connector

[0062] 21 housing

[0063] 211 insertion slot

[0064] 22 terminal

[0065] 221 contact portion

[0066] 222 tail portion

[0067] 3 heat sink

[0068] 31 heat sink base

[0069] 311 base plate

[0070] 311a bottom plate portion

[0071] 311b front wing portion

[0072] 311c side wing portion

[0073] 311d guide portion

[0074] 311e slit

[0075] 312 heat pipe

[0076] 313 front stop portion

[0077] 314 rear stop portion

[0078] 315 convex strip

[0079] 316 rectangular opening

[0080] 317 convex block

[0081] 32 heat dissipation fin

[0082] 4 fastener

[0083] 41 pressing plate

[0084] 411 elastic pressing portion

[0085] 42 fastener receiving plate

[0086] 421 fastener hole

[0087] D1 front-rear direction

[0088] D2 up-down direction

[0089] D3 left-right direction

[0090] 20 plug-in module

[0091] 20a housing member

[0092] 20b plug-in circuit board

[0093] 20c plug-in portion

[0094] 20d positioning end surface

[0095] 20e conductive contact portion DETAILED DESCRIPTION

[0096] Before the present invention is described in detail, it is to be understood that like components are denoted by like numerals in the description and the figures.

[0097] Referring to Figures 1 to 5 , a first embodiment of the connector assembly 10 of the present invention is adapted to be plugged with a plug-in module 20, and the connector assembly 10 comprises a shielding housing 1, a receptacle connector 2, a heat sink 3, and a fastener 4.

[0098] The shielding shell 1 is made of metal, for example, and extends along a front-rear direction D1 and has a top wall 11, a bottom wall 12 opposite the top wall 11 along an up-down direction D2, two side walls 13 opposite each other along a left-right direction D3 and connected to the top wall 11 and the bottom wall 12 respectively, a rear wall 14 located at the rear end and connected to the top wall 11 and the rear edges of the two side walls 13, and a plurality of pins 15 extending downward from the two side walls 13 and the rear wall 14 and adapted to be fixed on a circuit board (not shown) and / or connected to a ground trace, the bottom wall 12 is formed with a plurality of convexities 121 protruding downward in the first embodiment. The shielding shell 1 also has a receiving cavity 16 defined by the top wall 11, the bottom wall 12, the two side walls 13 and the rear wall 14 and located inside, a socket 161 located at the front end and communicating with the receiving cavity 16 for the plug-in module 20 to be inserted, a window 17 formed in the top wall 11 and communicating with the receiving cavity 16 along the front-rear direction D1, and a bottom opening 18 located at the rear side of the bottom wall 12 and communicating with the receiving cavity 16. In addition, the socket 161 of the shielding shell 1 is provided with a grounding member 19, the grounding member 19 has a plurality of elastic fingers 191 extending rearward from the socket 161 and distributed on the outside of the shielding shell 1 and the inside of the shielding shell 1, the elastic fingers 191 located on the outside of the shielding shell 1 are used to contact a housing (not shown), and the elastic fingers 191 located on the inside of the shielding shell 1 are used to contact the plug-in module 20.

[0099] Referring to Figures 2 to 6 The socket connector 2 is located at the rear section of the receiving cavity 16, and the socket connector 2 has a housing 21 with a plug-in slot 211 facing the socket 161, and a plurality of terminals 22, each terminal 22 has a contact portion 221 located in the plug-in slot 211, and a tail portion 222 electrically and mechanically connected to the aforementioned circuit board, in detail, the socket connector 2 is arranged on the aforementioned circuit board and covered by the shielding shell 1 through the bottom opening 18, so that the socket connector 2 is arranged in the receiving cavity 16, but not limited thereto. The window 17 of the shielding shell 1 extends rearward to expose the top surface of the socket connector 2, and passes through the rear wall 14 at the rear end of the shielding shell 1 to form a notch 141 at the upper edge of the rear wall 14.

[0100] Referring to Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8The heat sink 3 is disposed on the top wall 11 of the shielding housing 1, and includes a heat sink base 31 disposed on the top wall 11, and a plurality of heat sink fins 32 disposed on the heat sink base 31. The bottom surface of the heat sink base 31 extends downwardly into the accommodating cavity 16 through the window 17 and directly faces the top surface of the socket connector 2. The heat sink base 31 and its bottom surface extend straight rearwardly and protrude out of the notch 141 of the rear wall 14 at the rear end of the shielding housing 1 by a distance. In the first embodiment, the heat sink base 31 includes a substrate 311 made of metal, for example, and a flat heat pipe 312. The substrate 311 has a bottom plate portion 311a recessed downwardly and extending into the window 17 and straight rearwardly and protruding out of the notch 141 of the rear wall 14 by a distance, a front wing portion 311b connected to the front edge of the bottom plate portion 311a and disposed on the top surface of the top wall 11, and two side wing portions 311c connected to the two side edges of the bottom plate portion 311a and disposed on the top surface of the top wall 11 and extending out of the top wall 11 by a distance along the left-right direction D3. The bottom surface of the heat sink base 31 is located on the bottom surface of the bottom plate portion 311a of the substrate 311. The flat pipe body of the heat pipe 312 (also referred to as a heat conducting pipe) is made of metal material (e.g., copper) with high heat conduction efficiency, and has a closed cavity filled with working fluid (e.g., pure water) inside. The heat pipe 312 exhibits the characteristics of rapid temperature equalization and rapid heat conduction through the continuous circulation of the liquid-vapor two-phase change of the working fluid in the closed cavity. The heat pipe 312 is disposed on the top surface of the recessed bottom plate portion 311a, and the bottom plate portion 311a and the heat pipe 312 extend straight rearwardly out of the rear end of the shielding housing 1 by a distance. The heat pipe 312 is disposed on the bottom plate portion 311a by welding, but is not limited thereto. The heat sink 3 can directly face the socket connector 2 at a lower position through the window 17 of the shielding housing 1 without obstruction, and the bottom surface of the heat sink 3 and the heat pipe 312 can extend straight rearwardly, thereby improving the heat dissipation efficiency. In the first embodiment, a guide portion 311d is connected between the bottom plate portion 311a and the front wing portion 311b and extends forwardly and upwardly from the bottom plate portion 311a to the front wing portion 311b, and is used to guide the plug-in module 20 to be inserted.

[0101] The plurality of heat dissipation fins 32 are generally plate-shaped and connected to each other in a mutually engaged manner in parallel with each other along the front-rear direction D1, are located on the outside of the side wall 13 of the shield case 1 and on the rear side of the rear wall 14 of the shield case 1, and are provided on the bottom surface of the base plate portion 311a and the side wing portion 311c of the base plate 311. The plurality of heat dissipation fins 32 may, for example, be provided on the heat dissipation base 31 in a welded manner, but are not limited thereto and may, in other embodiments, be of a non-mutually engaged structure and integrally formed on the base plate 311 of the heat dissipation base 31. The plurality of heat dissipation fins 32 can enhance the heat dissipation performance of the heat sink 3.

[0102] Referring to Figure 1 , Figure 5 , Figures 8 to 10The plug-in module 20 has a housing 20a and a plug-in circuit board 20b. The housing 20a has a plug-in portion 20c for being inserted into the accommodating cavity 16 from the socket 161 of the shielding shell 1, and the plug-in circuit board 20b is arranged on the housing 20a and protrudes from the plug-in portion 20c of the housing 20a, and is used for being inserted into the plug-in slot 211 of the socket connector 2 so that the conductive contact portions 20e thereon are electrically connected with the contact portions 221 of the plurality of terminals 22 in the plug-in slot 211. The front end of the plug-in portion 20c of the housing 20a is formed with a positioning end face 20d located above the plug-in circuit board 20b. The bottom surface of the bottom plate portion 311a of the heat dissipation base 31 is provided with a front stop portion 313 protruding downward and suitable for stopping the positioning end face 20d of the plug-in module 20 at the position of the socket connector 2, so as to prevent the plug-in module 20 from being inserted too deeply. When the plug-in portion 20c of the plug-in module 20 is inserted from the socket 161, the front end contacts the guide portion 311d of the base plate 311, so that the plug-in module 20 is inserted to the top of the heat sink 3 and the top surface of the plug-in module 20 contacts the bottom surface of the heat dissipation base 31, and the front stop portion 313 moves upward with the heat sink 3. Compared with the fixed stop portion on the top wall in the prior art structure, the positioning end face 20d of the plug-in module 20 can be more upward and closer to the top surface of the plug-in portion 20c, and even the width of the positioning end face 20d in the up-down direction D2 can be smaller. The bottom surface of the bottom plate portion 311a of the heat dissipation base 31 is provided with a rear stop portion 314 protruding downward relative to the rear wall 14, which is limited in the rear direction by the rear wall 14, thereby limiting the heat sink 3 from moving rearward. In detail, in the first embodiment, the bottom surface of the bottom plate portion 311a is provided with two protrusions 315 extending in the front-rear direction D1 and protruding downward side by side, the front ends of the two protrusions 315 jointly constitute the front stop portion 313, and the rear ends of the two protrusions 315 jointly constitute the rear stop portion 314. The two protrusions 315 can be protrudingly formed by downward stamping of sheet metal, or can be welded to the bottom surface of the bottom plate portion 311a. By arranging the front stop portion 313 for stopping the plug-in module 20 and the rear stop portion 314 for being limited rearward by the rear wall 14 on the bottom surface of the heat dissipation base 31, the heat sink 3 is further inserted into the accommodating cavity 16 by the front stop portion 313 and the rear stop portion 314, and the heat sink 3 is closer to the socket connector 2 to further enhance the heat dissipation efficiency.

[0103] It is to be noted that in other variant embodiments, the heat dissipation base 31 can also have only one of the substrate 311 or the heat pipe 312, not limited to the first embodiment. In the embodiment where the heat dissipation base 31 has only the heat pipe 312 or the heat pipe 312 is lower than the substrate 311, the bottom surface of the heat dissipation base 31 is located at the bottom surface of the heat pipe 312, the bottom surface of the heat pipe 312 extends downward into the accommodating cavity 16 and directly faces the top surface of the socket connector 2, and the front stop portion 313 and the rear stop portion 314 are arranged at the bottom surface of the heat pipe 312.

[0104] Referring to Figure 1 , Figure 2 , Figure 11 , each side wing portion 311c of the substrate 311 of the heat sink 3 is formed with a slit 311e extending in the front-rear direction D1, and the fastener 4 is used to mount the heat sink 3 to the shielding shell 1. The fastener 4 has a pressing plate 41 pressing against the heat dissipation base 31 of the heat sink 3, and two fastening plates 42 extending downward from both sides of the pressing plate 41, the two fastening plates 42 penetrating the slits 311e of the two side wing portions 311c to be fastened to the two side walls 13 of the shielding shell 1 respectively; the front-rear position of the heat dissipation base 31 of the heat sink 3 can also be limited by the limitation of the slits 311e relative to the fastening plates 42. The pressing plate 41 has two elastic pressing portions 411 in the shape of elastic sheets and used to press against the heat dissipation base 31, the two elastic pressing portions 411 can also be other structures capable of pressing against the heat dissipation base 31 other than the elastic sheet structure, not limited to the embodiment. Each side wall 13 of the shielding shell 1 is formed with a plurality of buckling pieces 131 protruding outward, and each fastening plate 42 is also formed with a plurality of fastening holes 421 corresponding to the buckling pieces 131, thereby enabling the fastener 4 to be fastened to the shielding shell 1, and the heat sink 3 is assembled to the shielding shell 1 by the elastic pressing portions 411 of the fastener 4 pressing and elastically pressing downward, and the front wing portion 311b and the two side wing portions 311c of the substrate 311 of the heat sink 3 are respectively located in front of the window 17 and on the top wall 11 on the left and right sides. Moreover, in the embodiment, the elastic pressing portions 411 of the fastener 4 directly press and contact the heat pipe 312 of the heat dissipation base 31, as shown in Figure 11 , thereby enabling the heat energy of the shielding shell 1 to be transmitted to the heat pipe 312 of the heat dissipation base 31 through the fastener 4 fastened to the shielding shell 1 to enhance the heat dissipation efficiency.

[0105] Referring to Figure 12 , the second embodiment of the connector assembly of the present application differs from the first embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation substrate 311 is provided with three protrusions 315 extending in the front-rear direction D1 and arranged side by side, and further, the number of the protrusions 315 can be any number, not limited to this.

[0106] Referring to Figure 13 A third embodiment of the connector assembly of the present application differs from the second embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation substrate 311 is provided with six protrusions 315 extending in the front-rear direction Dl, three of which are located side by side in the front direction and three of which are located side by side in the rear direction. The front ends of the protrusions 315 located in the front direction constitute the front stop portion 313, and the rear ends of the protrusions 315 located in the rear direction constitute the rear stop portion 314.

[0107] Referring to Figure 14 A fourth embodiment of the connector assembly of the present application differs from the first embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation substrate 311 is provided with two protrusions 315 extending laterally in the left-right direction D3 and located side by side, one of which is located in the front direction and the other of which is located in the rear direction, and the two protrusions 315 are formed by first forming a slit extending in a substantially U shape and then bending downward the portion of the metal piece surrounded by the slit. The protrusion 315 located in the front direction constitutes the front stop portion 313, and the protrusion 315 located in the rear direction constitutes the rear stop portion 314.

[0108] Referring to Figure 15 A fifth embodiment of the connector assembly of the present application differs from the fourth embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation substrate 311 is provided with four protrusions 315 extending laterally in the left-right direction D3, two of which are located in the front direction and two of which are located in the rear direction. The protrusions 315 located in the front direction constitute the front stop portion 313, and the protrusions 315 located in the rear direction constitute the rear stop portion 314.

[0109] Referring to Figure 16 A sixth embodiment of the connector assembly of the present application differs from the first embodiment in that the two protrusions 315 are formed by first forming a rectangular opening 316 in the bottom plate portion 311a, extending the front and rear edges of the rectangular opening 316 laterally in the left-right direction D3 by a certain distance to form a plurality of slits, and then bending downward the portions of the metal piece located at both sides of the rectangular opening 316 and surrounded by the slits to form the two protrusions 315 extending in the front-rear direction Dl and located side by side and protruding downward.

[0110] Referring to Figure 17 A seventh embodiment of the connector assembly of the present application differs from the sixth embodiment in that the bottom plate portion 311a is formed with two rectangular openings 316 extending in the front-rear direction Dl and located side by side, and the two rectangular openings 316 are formed with four protrusions 315 extending in the front-rear direction Dl and located side by side and protruding downward at both sides of the two rectangular openings 316.

[0111] Referring toFigure 18 The eighth embodiment of the connector assembly of the present application differs from the first embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation base plate 311 is provided with a downwardly protruding rectangular protrusion 317, the front side of the protrusion 317 constituting the front stop portion 313, and the rear side of the protrusion 317 constituting the rear stop portion 314. In the present eighth embodiment, the protrusion 317 is formed by downwardly punching by sheet metal stamping, but the protrusion 317 can also be provided on the bottom surface of the bottom plate portion 311a by welding, without being limited thereto.

[0112] Referring to Figure 19 The ninth embodiment of the connector assembly of the present application differs from the eighth embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation base plate 311 is provided with two downwardly protruding rectangular protrusions 317, the two protrusions 317 extending laterally in the left-right direction D3 and side by side, one of the two protrusions 315 being located in front and the other being located in the rear, the front side of the protrusion 317 located in front constituting the front stop portion 313, and the rear side of the protrusion 317 located in the rear constituting the rear stop portion 314.

[0113] Referring to Figure 20 The tenth embodiment of the connector assembly of the present application differs from the ninth embodiment in that the bottom surface of the bottom plate portion 311a of the heat dissipation base plate 311 is provided with four downwardly protruding rectangular protrusions 317, the four protrusions 317 extending laterally in the left-right direction D3, two of the four protrusions 317 being located in front and the other two being located in the rear. The front side of the protrusion 317 located in front constitutes the front stop portion 313, and the rear side of the protrusion 317 located in the rear constitutes the rear stop portion 314.

[0114] In summary, the connector assembly 10 of the present application, by extending the window 17 of the shielding housing 1 rearwardly to expose the top surface of the receptacle connector 2, enables the heat sink 3 to directly face the receptacle connector 2 without obstruction at a lower position through the window 17, and enables the bottom surface or heat pipe 312 of the heat sink 3 to extend straight rearwardly, improving the heat dissipation efficiency. The front stop portion 313 for stopping the plug-in module 20 and the rear stop portion 314 for limiting the rear wall 14 rearwardly are provided on the bottom surface of the heat dissipation base 31, enabling the heat sink 3 to further extend into the accommodating cavity 16 through the front stop portion 313 and the rear stop portion 314, and enabling the heat sink 3 to be closer to the receptacle connector 2 to further improve the heat dissipation efficiency. Moreover, the front stop portion 313 can move upwardly with the heat sink 3, optimizing the overall structure and having a more limiting effect.

[0115] However, the above are only embodiments of the present application, and cannot limit the scope of the present application. Any simple equivalent changes and modifications made according to the content of the claims and the patent specification of the present application are still within the scope of the present application.

Claims

1. A connector assembly comprising: A shielding housing having a top wall, an internal receiving cavity, a front end and communicating with the receiving cavity, and a rearwardly extending window formed in the top wall and communicating with the receiving cavity; A socket connector is located at the rear of the receiving cavity, and the window of the shielding housing extends rearward to expose the top surface of the socket connector; and A heat sink is disposed on the top wall. The heat sink includes a heat sink base. The bottom surface of the heat sink base extends downward into the receiving cavity through the opening and directly faces the top surface of the socket connector. The bottom surface of the heat sink base has a downward protruding front end that is suitable for blocking a plug-in module at the socket connector. When a plug-in module is inserted from the socket, it raises the heat sink and the top surface of the plug-in module contacts the bottom surface of the heat sink base. The front end moves upward with the heat sink.

2. The connector assembly as claimed in claim 1, wherein, The shielding housing also has a rear wall located at the rear end, and the bottom surface of the heat dissipation base has a downwardly protruding rear stop relative to the rear wall. The rear stop is limited by the rear wall in the rearward direction and can move upward with the heat sink.

3. The connector assembly as claimed in claim 2, wherein, The opening of the shielding housing extends rearward and through the rear wall to form a notch at the upper edge of the rear wall, and the bottom surface of the heat dissipation base extends straight rearward and extends a distance through the notch of the rear wall.

4. The connector assembly as claimed in claim 3, wherein, The heat dissipation base includes a base plate having a bottom plate portion that is recessed downward and extends into the opening. The bottom surface of the heat dissipation base is located on the bottom surface of the bottom plate portion of the base plate. The base plate also has a front wing portion and two side wings that are connected to the bottom plate portion and disposed on the top surface of the top wall.

5. The connector assembly as claimed in claim 4, wherein, The radiator's substrate has a slit formed on each side wing, and the connector assembly also includes a fastener for mounting the radiator to the shielding housing. The fastener has a pressing plate that presses against the radiator and two snap-fit ​​plates extending downward from both sides of the pressing plate. The two snap-fit ​​plates extend through the slits of the side wings to snap onto the shielding housing.

6. The connector assembly of claim 3, wherein, The heat dissipation base includes a base plate having a bottom plate portion that is recessed downward and extends into the opening. The bottom surface of the heat dissipation base is located on the bottom surface of the bottom plate portion of the base plate. The bottom surface of the bottom plate portion is provided with a protruding strip that extends in the front-rear direction and protrudes downward. The front ends of the protruding strip together constitute the front stop portion, and the rear ends of the protruding strip together constitute the rear stop portion.

7. The connector assembly of claim 3, wherein, The heat dissipation base includes a base plate having a bottom plate portion that is recessed downward and extends into the opening. The bottom surface of the heat dissipation base is located on the bottom surface of the bottom plate portion of the base plate. The bottom surface of the bottom plate portion is provided with a plurality of laterally extending and downward protruding ridges. The ridges located in front of the ridges constitute the front stop portion, and the ridges located in the rear of the ridges constitute the rear stop portion.

8. The connector assembly of claim 3, wherein, The heat dissipation base includes a base plate having a bottom plate portion that is recessed downwards and extends into the opening. The bottom surface of the heat dissipation base is located on the bottom surface of the bottom plate portion of the base plate. The bottom surface of the bottom plate portion is provided with a protruding protrusion that protrudes downwards. The front side of the protrusion constitutes the front stop portion, and the rear side of the protrusion constitutes the rear stop portion.

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