CN110197962B

CN110197962B - Heat dissipation member and electric connector assembly with same

Info

Publication number: CN110197962B
Application number: CN201910132225.5A
Authority: CN
Inventors: 特伦斯·F·李托; 周志贤; 赵欣; 杨安仁
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2018-02-26
Filing date: 2019-02-22
Publication date: 2022-08-19
Anticipated expiration: 2039-02-22
Also published as: CN110197962A

Abstract

An electric connector assembly comprises a shell, a socket connector and a heat dissipation piece mounted on the outer side of the shell, wherein the shell comprises an upper wall, a pair of side walls and a rear wall, an accommodating space is defined by the upper wall, the pair of side walls and the rear wall, the socket connector is located at the rear end of the accommodating space, the heat dissipation piece is integrally formed and comprises a horizontal portion covering the upper wall and a vertical portion covering the rear wall.

Description

Heat dissipation member and electric connector assembly with same

[ technical field ] A

The present disclosure relates to heat dissipation members and electrical connector assemblies with the heat dissipation members, and particularly to a heat dissipation member and a heat dissipation connection structure of an electrical connector assembly with the heat dissipation member.

[ background ] A method for producing a semiconductor device

Currently QSFP-DD 1X 1 modules with eight electrical channels are disclosed in QSFP-DD specification revision 0.1. Each of the eight electric channels of the QSFP runs at the speed of 25Gbit/s or 50Gbit/s, so the QSFP-DD module can support 200Gbit/s or 400Gbit/s Ethernet application. The QSFP-DD module comprises an electrical receptacle comprising an insulative housing and four rows of electrical terminals housed within the insulative housing. Each of the electrical terminals includes a soldering portion. The two rows of solder portions of the top two rows of electrical terminals are offset in the longitudinal direction from the two rows of solder portions of the bottom two rows of electrical terminals. Of note is another design with 0.5mm spacing, which has a similar interface with the QSFP. The conventional QSFP-DD 2 x 1 case is equipped with a top radiator and a rear radiator, which are independent and separate from each other, and thus its heat dissipation capability is not fully utilized.

Although the aforementioned connector assemblies are all equipped with heat sinks to remove heat, additional heat sinks allow for better heat transfer. Therefore, there is a need for a new arrangement of QSFP with relative ease of manufacturability and good heat dissipation.

[ summary of the invention ]

The present invention is directed to an electrical connector assembly with high heat dissipation performance.

In order to solve the technical problems, the invention adopts the following technical scheme: an electric connector assembly comprises an outer shell, a socket connector and a heat dissipation piece mounted on the outer side of the outer shell, wherein the outer shell comprises an upper wall, a pair of side walls and a rear wall, an accommodating space is defined by the upper wall, the pair of side walls and the rear wall, the socket connector is located at the rear end of the accommodating space, and the heat dissipation piece is integrally formed and comprises a horizontal portion covering the upper wall and a vertical portion covering the rear wall.

Compared with the prior art, the invention has the following beneficial effects: the heat dissipation performance of the electric connector assembly is improved.

Another objective of the present invention is to provide a heat dissipation device with high heat dissipation performance.

In order to solve the technical problems, the invention adopts the following technical scheme: a heat sink for an electrical connector assembly, the electrical connector assembly including an upper wall and a rear wall, the heat sink being integrally formed and including a horizontal portion covering the upper wall and a vertical portion covering the rear wall.

Compared with the prior art, the invention has the following beneficial effects: the heat dissipation member has high heat dissipation performance.

[ description of the drawings ]

Fig. 1 is a perspective view of an electrical connector assembly consistent with an embodiment of the present invention.

Fig. 2 is a perspective view of the electrical connector assembly shown in fig. 1 from another perspective.

Fig. 3 is an exploded view of the electrical connector assembly shown in fig. 1.

Fig. 4 is an exploded view of the electrical connector assembly shown in fig. 2.

Fig. 5 is a further exploded view of the electrical connector assembly shown in fig. 3.

Fig. 6 is a further exploded view of the electrical connector assembly shown in fig. 4.

Fig. 7 is an exploded view of the heat pipe and surrounding associated components shown in fig. 5.

Figure 8 is an exploded view of another perspective of the heat pipe and related surrounding components shown in figure 7.

Fig. 9 is an exploded view of a portion of the electrical connector assembly shown in fig. 1 to show how the heat sink and heat pipe work together.

Fig. 10 is an exploded view of another perspective of a portion of the electrical connector assembly shown in fig. 9 to show how the heat sink and heat pipe work together.

Fig. 11 is an assembly view from another perspective of a portion of the electrical connector assembly shown in fig. 9 to show how the heat sink and heat pipe work together.

Fig. 12 is a side view of a portion of the electrical connector assembly shown in fig. 10 to show how the heat sink and heat pipe work together.

Fig. 13 is a front view of a heat sink of the electrical connector assembly shown in fig. 1.

Fig. 14 is a cross-sectional view of the electrical connector assembly shown in fig. 1 to show how the heat conducting assembly and heat sink operate relative to the remaining components.

Fig. 15 is a cross-sectional view of another perspective of the electrical connector assembly shown in fig. 1 to show how the terminal modules in the receptacle connector communicate with two ports in the housing.

Fig. 16 is a perspective view of the receptacle connector of the electrical connector assembly shown in fig. 1.

Fig. 17 is a perspective view of another perspective of the receptacle connector of the electrical connector assembly shown in fig. 16.

Fig. 18 is a perspective view of yet another perspective of the receptacle connector of the electrical connector assembly shown in fig. 16.

Fig. 19 is an exploded view of the receptacle connector of the electrical connector assembly shown in fig. 16.

Fig. 20 is an exploded view of the receptacle connector of the electrical connector assembly shown in fig. 17.

Fig. 21 is a further exploded view of the receptacle connector shown in fig. 19.

Fig. 22 is a further exploded view from another perspective of the receptacle connector shown in fig. 20.

Fig. 23 is an exploded view of a terminal module of the receptacle connector of the electrical connector assembly shown in fig. 16.

Fig. 24 is an exploded view from another perspective of a terminal module of the receptacle connector of the electrical connector assembly shown in fig. 23.

Fig. 25 is a sectional view of the receptacle connector shown in fig. 16.

Fig. 26 is an exploded view of the ground portion of the terminal block of the receptacle connector of the electrical connector assembly shown in fig. 16.

Fig. 27 is a perspective view of an electrical connector assembly mated with an upper plug module and a lower plug module.

Fig. 28 is a perspective view of an electrical connector assembly mated with an upper plug module and a lower plug module, in accordance with another embodiment of the present invention.

[ detailed description ] embodiments

As shown in fig. 1-27, a receptacle connector 900 according to an embodiment of the present invention includes a housing 100 for receiving a receptacle connector 200, the housing 100 being a metal housing in this embodiment. The housing 100 and the receptacle connector 200 are mounted on a circuit board 500. The L-shaped integral heat sink 300 is provided on the housing 100 to cover the upper and rear sides of the housing 100. The heat conductive member is disposed in the middle layer of the housing 100, and is held in the receptacle connector 200 and extends through the heat sink 300 in a tight manner. The detailed description is as follows.

The housing 100 includes a primary portion 110 and a secondary portion 130 assembled with the primary portion 110. The main portion 110 includes an upper wall 112, a pair of side walls 114 and a rear wall 116, wherein the upper wall 112, the side walls 114 and the rear wall 116 form a space 115 for receiving the receptacle connector 200 and two corresponding upper plug modules 601 and lower plug modules 602 (as shown in fig. 27). A number of mounting feet 118 extend downwardly from the bottom edge of the main portion 110 for mounting on the circuit board 500. The upper wall 112 includes an opening 120. A frame-type gasket 122 is provided at the front end of the housing 100.

As shown in fig. 16-26, the receptacle connector 200 is similar to the receptacle connector of the prior application CN109273932A, and includes terminal modules 210 held within a dielectric body 220. The terminal module 210 includes a plurality of terminal modules 212 stacked on each other in a transverse direction, wherein each terminal module 212 includes a pair of signal modules 213 and a ground module 215. Each signal module 213 includes a number of signal terminals 214 embedded within an insulator 216. Each signal terminal 214 includes a front connection portion 218 and a rear mounting portion 219. Each ground module 215 includes a ground terminal 217 secured to the insulator 211, the ground terminal 217 including a front connection portion 207 and a rear mounting portion 209. The insulating body 220 includes a main body 22 and a bottom 224 assembled with the main body 22. The main body portion 22 includes a pair of docking cavities 226 in the vertical direction, and the respective front connecting portions 218,207 extend into the docking cavities 226. A plurality of grounding lugs 228 are disposed on the housing 220 and are inserted into the terminal module 210 in a crossed manner with corresponding spring pieces 229 to connect the grounding terminals 217.

The heat sink 300 has an L-shaped structure including a horizontal portion 310 or a first portion located on the upper wall 112 of the housing 100 and a vertical portion 320 or a second portion located on the rear wall 116 of the housing 100. The heat sink 300 includes a plurality of fins 330 extending in the front-rear direction. To secure the parallel fins 330 together, the horizontal portion 310 includes a horizontal plate 312 that is located on the upper wall 112 and extends further rearward and terminates at the rear edge of the heat sink 300. Similarly, the vertical portion 320 includes a cross bar 322 connecting the parallel fins 330 and a pair of through holes 324 at both sides. The first lower protrusion 314 is formed below the horizontal plate 312, and extends downward through the opening 120 of the housing 100 to connect with the corresponding upper plug module 601, and the upper plug module 601 is received in the upper port of the space 115 of the housing 100 to dissipate heat generated by the upper plug module. The horizontal portion 310 includes a plurality of slots 316, the slots 316 receiving removable catches 318 to secure the heat sink 300 to the housing 100. In the present embodiment, the fins 330 extend from the front edge of the horizontal portion 310 in the front-rear direction to the rear edge of the vertical portion 320, the vertical portion 320 being integrally formed with the crossbar 322, not only holding the fins 330 together, but also providing a pair of through holes 324 to receive respective heat pipes (described later). It should be noted that, in the present embodiment, the upper edge of the heat sink 330 on the horizontal portion 310 is tapered to match heat dissipation. In the present embodiment, the heat sink 300 is made of extruded aluminum. In other embodiments, as shown in fig. 28, the heat sink 300' may be made of copper.

The heat conductive assembly 400 includes a U-shaped bracket 420 assembled to two sidewalls 114 of the housing 100, a heat conductive block 410 held by the U-shaped bracket 420, and a pair of heat conductive pipes 430 located at two sides of the heat conductive block 410 and extending in the front-rear direction and passing through the corresponding through holes 324. It is noted that the heat conducting assembly 400 divides the space inside the housing 100 into an upper port 101 and a lower port 102, and the upper port 101 and the lower port 102 are aligned with the mating cavity 226 of the insulative housing 220 in the front-to-rear direction and receive the corresponding upper plug module 601 and the lower plug module 602, respectively. The U-shaped bracket 420 has an opening 422 allowing the second lower protrusion 412 of the thermal conductive block 410 to extend therethrough, so that the second lower protrusion 412 can be connected to the lower plug module 602 received in the lower port 102 of the housing 100 to remove heat generated by the lower plug module 602. It is noted that the insulating body 220 is provided with a pair of grooves 230 to receive the corresponding heat conducting pipes 430, respectively.

In contrast to CN108987966A of the previous application, the L-shaped heat sink 300 of the present embodiment is integrally molded, and includes a bent portion 350 connecting an upper heat sink member and a rear heat sink member together, whereas in the former case, the upper heat sink member and the rear heat sink member are separated from each other. Not only increased heat radiating area, effective heat conduction moreover further improves the intensity of whole radiating piece. With this arrangement, the upper heat sink member absorbs heat generated in the upper port 101 of the housing 100 by the upper plug module 601 to dissipate the heat, and the rear heat sink member absorbs heat generated in the lower port 102 of the housing 100 by the lower plug module 602 through the pair of heat pipes to dissipate the heat. Can be connected together in a good circulation compared to the separate heat dissipation of CN108987966A of the previous application. It is to be noted that the flow of the cooling air is guided to move in the front-rear direction in the groove between each adjacent two of the fins 33. The bent portion 350 is connected to the upper heat dissipating portion (i.e., the horizontal portion 310) and the rear heat dissipating portion (i.e., the vertical portion 320), so that heat transferred from the heat conductive pipe can be effectively removed, thereby ensuring the function of the lower plug module (not shown).

Claims

1. An electrical connector assembly, which comprises a housing, a socket connector and a heat sink mounted on the outer side of the housing, wherein the housing comprises an upper wall, a pair of side walls and a rear wall, the upper wall, the pair of side walls and the rear wall enclose an accommodating space, and the socket connector is located at the rear end of the accommodating space, characterized in that: the heat dissipation piece is integrally formed and comprises a horizontal portion and a vertical portion, the horizontal portion covers the upper wall, the vertical portion covers the rear wall, an opening is formed in the upper wall, the horizontal portion can directly contact with a matched plug module to conduct heat through the opening, the horizontal portion is directly attached to the upper wall, the vertical portion is directly attached to the rear wall, and the heat dissipation piece comprises a bending portion which connects the horizontal portion and the vertical portion together.

2. The electrical connector assembly of claim 1, wherein: the heat dissipation piece is in an inverted L shape.

3. The electrical connector assembly of claim 1, wherein: the horizontal and vertical portions are connected to the housing by different mechanical structures.

4. The electrical connector assembly of claim 3, wherein: the electric connector assembly comprises a heat conduction assembly, the heat conduction assembly comprises a heat conduction block and a pair of heat conduction pipes, the heat conduction blocks are located on two opposite sides of the heat conduction block and extend in the front-back direction, the heat conduction block divides a containing space into an upper port and a lower port in the vertical direction perpendicular to the front-back direction, the upper port is used for containing an upper plug module, the lower port is used for containing a lower plug module, and the heat conduction pipes extend through the rear wall and are connected with the vertical portions.

5. The electrical connector assembly of claim 4, wherein: the heat dissipation piece is provided with a first lower convex part connected with the upper plug module, and the heat conduction block is provided with a second lower convex part connected with the lower plug module.

6. The electrical connector assembly of claim 5, wherein: the upper wall is provided with an opening for the first lower convex part of the heat dissipation piece to pass through.

7. The electrical connector assembly of claim 1, wherein: the heat sink includes a plurality of fins extending in a front-rear direction and spaced from each other in a lateral direction perpendicular to the front-rear direction, each of the fins extending from a front edge of the horizontal portion to a rear edge of the vertical portion.

8. The electrical connector assembly of claim 7, wherein: the electrical connector assembly includes a pair of heat pipes extending in a front-rear direction, the horizontal portion includes a horizontal plate covering the upper wall, and the vertical portion includes a cross bar for the pair of heat pipes to extend in the front-rear direction.