Electrical connector assembly

Abstract

This invention discloses an electrical connector assembly, comprising a shielding housing, the shielding housing including a top wall, a pair of outer side walls, a vertical partition wall, and a plurality of separators. The top wall and the pair of outer side walls cooperate to form an internal space. The vertical partition wall divides the internal space into a plurality of sub-spaces arranged horizontally. The plurality of separators divide each corresponding sub-space into an upper space, a lower space, and a middle channel. Each upper space and each lower space has a front port for inserting a plug module at its front end. The assembly also includes an upper cooling module disposed on the top of the shielding housing and a lower cooling module disposed in the middle channel. The upper cooling module includes an upper base and a plurality of upper contact protrusions extending downward from the upper base and capable of entering the corresponding upper space. The upper contact protrusions are buoyant relative to the upper base, and the upper cooling module and the lower cooling module are buoyant together with the shielding housing.

Description

Technical Field

[0001] This invention relates to an electrical connector assembly, and more particularly to an electrical connector assembly having a liquid cooling module. Background Technology

[0002] U.S. Patent No. 11,729,941 discloses an electrical connector assembly including a shielding housing, a first liquid cooling plate disposed on the top of the shielding housing, and a second liquid cooling plate disposed in the middle of the shielding housing, wherein the first liquid cooling plate and the second liquid cooling plate are non-floating.

[0003] U.S. Patent No. 11,653,474 discloses an electrical connector assembly including a shielding housing and a liquid cooling chamber with a heat dissipation plate, the heat dissipation plate being elastically movable and returning to its original position relative to the liquid cooling chamber, the liquid cooling chamber being relatively fixedly mounted on the shielding housing.

[0004] Therefore, it is necessary to design an electrical connector assembly to overcome the above-mentioned shortcomings. Summary of the Invention

[0005] The main objective of this invention is to provide an electrical connector assembly in which a cooling module can contact a pluggable module.

[0006] To achieve the above objectives, the present invention can adopt the following technical solution: an electrical connector assembly, comprising a shielding housing, the shielding housing including a top wall, a pair of outer side walls extending downward from both sides of the top wall, a vertical partition wall, and a plurality of separators, the top wall and the pair of outer side walls cooperating to form an internal space, the vertical partition wall dividing the internal space into a plurality of sub-spaces arranged horizontally, the plurality of separators dividing each corresponding sub-space into an upper space, a lower space, and an intermediate channel located between the upper space and the lower space, each of the upper space and the lower space having a front port for inserting a plug module at its front end, further comprising an upper cooling module disposed on the top of the shielding housing and a lower cooling module disposed in the intermediate channel, the upper cooling module including an upper base and a plurality of upper contact protrusions protruding downward from the upper base, each of the upper contact protrusions protruding downward into the corresponding upper space, the upper contact protrusions being able to float relative to the upper base, and the upper cooling module and the lower cooling module being able to float up and down together relative to the shielding housing.

[0007] To achieve the above objectives, the present invention may also employ the following technical solution: an electrical connector assembly comprising a shielding housing, the shielding housing comprising a top wall, a pair of outer side walls extending downward from the top wall, and a separator, the top wall and the pair of outer side walls cooperating to form an internal space, the separator dividing the internal space into an upper space, a lower space, and an intermediate channel located between the upper space and the lower space, the front ends of the upper space and the lower space each having a front port for inserting a plug module, further comprising an upper cooling module disposed on the top of the shielding housing and a lower cooling module disposed in the intermediate channel, the upper cooling module and the lower cooling module each having a coolant flow channel for coolant flow, the upper cooling module comprising an upper contact protrusion that can protrude into the upper space, the upper contact protrusion being floatable, and the upper cooling module and the lower cooling module being floatable relative to the shielding housing.

[0008] To achieve the above objectives, the present invention may also employ the following technical solution: an electrical connector assembly, comprising a shielding housing and a cooling module disposed on the top of the shielding housing, the shielding housing comprising a top wall and a pair of outer side walls located on both sides of the top wall in the lateral direction, the top wall and the pair of outer side walls together forming an internal space, the front end of the internal space being provided with a front port for inserting a plug module, the cooling module being provided with a coolant flow channel for coolant flow, and further comprising an auxiliary elastic element that is retractable relative to the shielding housing, the elastic force of the auxiliary elastic element acting on the cooling module, the cooling module comprising a base, a contact protrusion extending from the base, an internal elastic element disposed between the base and the contact protrusion, and a thermally conductive material disposed between the contact protrusion and the base, the contact protrusion being able to protrude into the internal space, the contact protrusion being able to float relative to the base, and the cooling module being able to float relative to the shielding housing.

[0009] Compared with the prior art, the advantages of the present invention are that the contact protrusion of the cooling module of the electrical connector assembly of the present invention can not only float relative to the base, but also float relative to the shielding shell, so that the cooling module and the pluggable module can make better contact. Attached Figure Description

[0010] Figure 1 This is a perspective view of an electrical connector assembly conforming to the first embodiment of the present invention.

[0011] Figure 2 yes Figure 1 A perspective view of the electrical connector assembly shown from another angle.

[0012] Figure 3 yes Figure 1 The diagram shows a partial exploded view of the electrical connector assembly.

[0013] Figure 4 yes Figure 3 A partially exploded view of the electrical connector assembly shown from another perspective.

[0014] Figure 5 yes Figure 3 An exploded view of the electrical connector assembly is shown, with the socket connector and cage removed.

[0015] Figure 6 yes Figure 5 An exploded view of the electrical connector assembly shown from another perspective.

[0016] Figure 7 yes Figure 5 A further exploded view of the electrical connector assembly shown.

[0017] Figure 8 yes Figure 7 An exploded view of the electrical connector assembly shown from another perspective.

[0018] Figure 9 yes Figure 7 An exploded view of the electrical connector assembly shown from another perspective.

[0019] Figure 10 yes Figure 7 A further exploded view of the electrical connector assembly shown.

[0020] Figure 11 yes Figure 10 A further exploded view of the electrical connector assembly shown.

[0021] Figure 12 This is an exploded view of the shielding enclosure.

[0022] Figure 13 It is a 3D view of the shielding housing and the lower cooling module.

[0023] Figure 14 yes Figure 13 A stereoscopic view from another perspective.

[0024] Figure 15 This is an exploded view of the upper cooling module.

[0025] Figure 16 This is a cross-sectional view of the upper cooling module.

[0026] Figure 17 This is a perspective view of an electrical connector assembly conforming to the second embodiment of the present invention.

[0027] Figure 18 yes Figure 17 An exploded view of the electrical connector assembly shown.

[0028] Figure 19 yes Figure 18The exploded view of the electrical connector assembly shown omits the upper cooling module.

[0029] Figure 20 yes Figure 19 The exploded view of the electrical connector assembly shown omits the circuit board.

[0030] Figure 21 yes Figure 20 A perspective view of the upper cooling module of the electrical connector assembly shown. Detailed Implementation

[0031] like Figure 1-16 As shown, an electrical connector assembly 900 conforming to a first embodiment of the present invention is mounted downward on an external circuit board 800 and can mate with a plurality of pluggable modules (not shown) in the front-to-back direction.

[0032] The electrical connector assembly 900 includes a shielding housing 100, a plurality of socket connectors 200 housed within the shielding housing 100, an upper cooling module 300 disposed on the top of the shielding housing 100, and a lower cooling module 500 disposed in the middle of the shielding housing 100. The shielding housing 100 includes a main shielding housing 110 and a rear shielding housing 120. The main shielding housing 110 includes a top wall 111, a pair of outer side walls 112 located on both sides of the top wall 111 in the lateral direction, a bottom wall 113 arranged parallel to the top wall 111, a plurality of vertical partition walls 114, and a plurality of separators 115. The top wall 111, the pair of outer side walls 112, and the bottom wall 113 together enclose an internal space. The top wall 111 and the pair of outer side walls 112 are one piece. Each vertical partition wall 114 extends from the top wall 111 to the bottom wall 113. The plurality of vertical partition walls 114 divide the internal space into a plurality of subspaces arranged laterally. Each of the partitions 115 is disposed within a corresponding subspace to divide the subspace into an upper space 101, a lower space 102, and an intermediate channel 103 located between the upper space 101 and the lower space 102. Each upper space 101 and lower space 102 has a front port at its front end for a pluggable module to enter. Each intermediate channel 103 has an opening at its rear end through which the lower cooling module 500 is installed from back to front into the intermediate channel 103. The top wall 111 has multiple upper openings 1110 communicating with the corresponding upper space 101. The partition 115 includes an upper wall 1151, a lower wall 1152, and a front wall 1153 connecting the upper wall 1151 and the lower wall 1152. The intermediate channel 103 is defined between the upper wall 1151 and the lower wall 1152. The upper wall 1151, lower wall 1152, and front wall 1153 are a single piece. The lower cooling module 500 is installed within the intermediate channel 103. The lower wall 1152 has a lower opening 1150 communicating with the lower space 102. The upper wall 1151 of the partition 115 has a downwardly extending spring tab 1154. The spring tab 1154 contacts the upper surface of the lower cooling module 500 to push the lower cooling module 500 downward. Each partition 115 has at least three spring tabs 1154. Each vertical partition wall 114 extends from the top wall 111 to the bottom wall 113. The outer wall 112 and the vertical partition wall 114 have mounting feet 1121 that can be mounted on an external circuit board 800.

[0033] The top wall 111 extends rearward beyond the rear end of the upper cooling module 300 to facilitate the attachment of the rear shielding housing 120 to the rear of the main shielding housing 110. The bottom wall 113 does not extend rearward to the rear wall 123, allowing the socket connector 200 to be mounted downward onto the external circuit board 800. The rear shielding housing 120 includes a rear top wall 121 that mates with the top wall 111, a rear outer side wall 122 that mates with the outer side wall 112, and a rear wall 123 connecting the rear top wall 121 and the rear outer side wall 122. The rear shielding housing 120 is provided with a feature 1210 that locks into the main shielding housing 110. In this invention, the shielding housing 100 adopts a two-piece structure, namely the main shielding housing 110 and the rear shielding housing 120, and the main shielding housing 110 is integrally formed without splitting, making the shielding housing 100 structure more stable. This embodiment has four upper ports and four lower ports. In other embodiments, any number of upper ports or lower ports can be provided. For example, only one upper port and one lower port can be provided, without the vertical partition wall 114; or only one port can be provided, without the vertical partition wall 114 and the separator 115.

[0034] The socket connector 200 is housed in the rear of the corresponding sub-space. The socket connector 200 includes an insulating housing 211 and a plurality of conductive terminals (not shown) held in the insulating housing 211. The insulating housing 211 includes two mating slots 201 spaced vertically apart. The two mating slots 201 correspond to the upper space 101 and the lower space 102, respectively. The conductive terminals include contact portions extending into the corresponding mating slots 201 and tail portions mechanically and electrically connected to the external circuit board 800. The mating tongue of the pluggable module can be inserted into the mating slots 201 to contact the conductive terminals. The socket connector 200 is provided with an anti-tilt feature 202, and the rear shielding housing 120 is provided with a latch 125 that engages with the anti-tilt feature 202.

[0035] The upper cooling module 300 is floatable. The upper cooling module 300 includes an upper base 310, a plurality of upper contact protrusions 320 extending downward relative to the upper base 310, a thermally conductive material 340 disposed between each upper contact protrusion 320 and the upper base 310, and an internal elastic member 330 disposed between each upper contact protrusion 320 and the thermally conductive material 340. The upper base 310 engages with the top wall 111 of the main shielding housing 110 and laterally spans the entire top wall 111 of the shielding housing 100. The internal elastic member 330 allows the upper contact protrusions 320 to float. The upper cooling module 300 also includes a pair of downwardly extending sidewalls 312 located on both sides of the upper base 310 in the lateral direction. The sidewalls 312 are located outside the two outer sidewalls 112 of the main shielding housing 110. The upper contact protrusions 320 can extend into the corresponding upper space 101 through the corresponding upper opening 1110, contacting a pluggable module inserted into the upper space 101. In this embodiment, the internal elastic element 330 is a helical spring; in other embodiments, the internal elastic element 330 may be made of other elastic materials. When the pluggable module enters the upper space 101, the upper contact protrusion 320 is pushed upward by the pluggable module and moves toward the upper base 310. At this time, the upper contact protrusion 320 compresses multiple internal elastic elements 330. The upper contact protrusion 320 is provided with a groove for receiving the spring. When the upper contact protrusion 320 moves upward, the spring can be compressed and received in the groove, so that the upper contact protrusion 320 and the upper base 310 come into contact to transfer heat. When the pluggable module is pulled out, the spring pushes the upper contact protrusion 320 back to its original state. The thermally conductive material 340 acts as a thermal bridge between the upper contact protrusion 320 and the upper base 310. The thermally conductive material 340 is compressible. The thermally conductive material 340 can be made into a thin sheet. The thermally conductive material 340 is bonded to the bottom surface of the upper base 310 or the upper contact protrusion 320 using hot melt adhesive. When the pluggable module is inserted, the thermally conductive material 340 is compressed and moves upward. The thermally conductive material 340 is made of a rubber material doped with metal particles. The rubber material provides elasticity to the thermally conductive material 340, while the metal particles, such as aluminum, copper, and stainless steel particles, improve the thermal conductivity of the thermally conductive material 340. The thermally conductive material 340 may also be made of a chemical polymer that combines thermal conductivity and elasticity.

[0036] The lower cooling module 500 includes a lower base 510 and a plurality of lower contact protrusions 520 extending downward from the bottom surface of the lower base 510. The lower contact protrusions 520 are integrally formed with the lower base 510 and are fixed to each other, being non-floating. The lower base 510 is housed within an intermediate channel 103. The lower base 510 laterally spans the plurality of intermediate channels 103. Each lower contact protrusion 520 protrudes through a lower opening 1150 of the lower wall 1152 of the separator 115 into a corresponding lower space 102 to contact a pluggable module inserted into the lower space 102. The lower base 510 is provided with a plurality of positioning grooves 5101 passing through the vertical partition wall 114. The positioning grooves 5101 extend forward through the front end face of the lower base 510, allowing the lower cooling module 500 to be installed from rear to front within the intermediate channel 103. The heat source comes from the pluggable module, which can directly contact the upper cooling module 300 or the lower cooling module 500, facilitating heat exchange and improving heat dissipation.

[0037] The electrical connector assembly 900 further includes a retainer 1000. The retainer 1000 has an upwardly protruding positioning post 1001 and an auxiliary elastic element 1002. The auxiliary elastic element 1002 is a spring. The spring is sleeved on the positioning post 1001. The lower cooling module 500 also includes a pair of sidewalls 512 extending upward from both sides of the lower base 510 in a lateral direction. The sidewalls 512 have positioning holes 5120, and the upper ends of the positioning posts 1001 are received within the positioning holes 5120. The spring and the positioning posts 1001 allow the lower cooling module 500 to float smoothly up and down.

[0038] The height of the intermediate channel 103 is greater than the thickness of the lower base 5111 to facilitate the installation of the lower cooling module 500 and to allow the lower base 510 to float vertically. The side wall 512 of the lower cooling module 500 is located outside the outer side wall 112 of the main shielding housing 110. The upper cooling module 300 is attached to the lower cooling module 500 by bolts 530. The side wall 512 of the lower cooling module 500 is connected to the side wall 312 of the upper cooling module 300 by bolts 530, so that the upper cooling module 300 and the lower cooling module 500 can float vertically together relative to the shielding housing 100.

[0039] During assembly, the lower cooling module 500 is first installed inside the shielding housing 100 from back to front. Then, the upper cooling module 300 is installed from top to bottom on the top wall 111 of the shielding housing 100. The upper cooling module 300 and the lower cooling module 500 are then fixed in place. Finally, the rear shielding housing 120 is installed. The top wall 111 extends rearward beyond the rear ends of the upper base 310 of the upper cooling module 300 and the lower base 510 of the lower cooling module 500 to facilitate the installation of the rear shielding housing 120 at the rear of the main shielding housing 110. In other embodiments, the upper cooling module 300 and the lower cooling module 500 can be assembled together first, and then installed together inside the shielding housing 100 from back to front.

[0040] In other embodiments, the lower cooling module 500 may also be configured to be self-floating, just like the upper cooling module 300, and only the lower cooling module 500 may be provided.

[0041] Both the upper cooling module 300 and the lower cooling module 500 are provided with coolant channels (not shown) for coolant flow. The upper cooling module 300 has a port 301 communicating with the coolant channel of the upper cooling module 300. The lower cooling module 500 has a port 501 communicating with the coolant channel of the lower cooling module 500. The port includes an inlet port for coolant to flow in and an outlet port for coolant to flow out. The coolant channel connects the inlet port and the outlet port. The coolant channel in the upper cooling module 300 is connected to the coolant channel in the lower cooling module 500. Both the upper cooling module 300 and the lower cooling module 500 are provided with one port. One of the ports 301 of the upper cooling module 300 and the other of the ports 501 of the lower cooling module 500 is an inlet port and the other is an outlet port. The inlet port and the outlet port are located on the same side. Of course, the inlet port and the outlet port can be located on different sides.

[0042] In other embodiments, the coolant channels in the upper cooling module 300 and the lower cooling module 500 are independent of each other, and the upper cooling module 300 and the lower cooling module 500 are respectively provided with inlets for coolant inflow and outlet. The coolant can be water or other coolants.

[0043] like Figure 17-21As shown, an electrical connector assembly 900' conforming to a second embodiment of the present invention includes two sub-connector assemblies 901 arranged in a laterally direction. Each sub-connector assembly 901 has eight upper ports and eight lower ports. The two sub-connector assemblies 901 have a total of 32 ports. Both sub-connector assemblies 901 are mounted on the same surface of an external circuit board 800'. It is understood that the two sub-connector assemblies 901 may also be mounted on different surfaces of the external circuit board 800' and arranged symmetrically with respect to the two sub-connector assemblies 901 on the different surfaces.

[0044] Each of the sub-connector assemblies 901 includes a shielding housing 100', a socket connector 200' housed within the shielding housing 100', an upper cooling module 300' disposed on top of the shielding housing 100', and a lower cooling module 500' disposed in the intermediate channel 103'. This embodiment omits the retainer 1000. The lower cooling module 500' is substantially the same as the upper cooling module 300 in the first embodiment. Specifically, the lower cooling module 500' includes a lower base 510', a plurality of lower contact protrusions (not shown) protruding downward from the lower base 510', and an internal elastic element and thermally conductive material disposed between the lower base 510' and the lower contact protrusions. The lower contact protrusions are floatable relative to the lower base 510'. On one side of the two sub-connector assemblies 901 that are close to each other, one lower cooling module 500' has spaced-apart protrusions 541 and recesses 542 located between the protrusions 541, and the other lower cooling module 500' has a protrusion 543 received within the recesses 542. Similarly, on the other side of the two sub-connector assemblies 901 that are close to each other, one upper cooling module 300' has spaced-apart protrusions 341 and recesses 342 located between the protrusions 341, and the other upper cooling module 300' has a protrusion 343 received within the recesses 342. The protrusions 541 and 341 are provided on the same sub-connector assembly 901 and are fixed together by bolts 550. The protrusions 543 and 343 are provided on another sub-connector assembly 901 and are fixed together by bolts 551. The recesses 542 and protrusions 543 do not interfere with each other and are independent of each other. When the cooling modules and shielding housing 100 are mounted on the circuit board, they do not interfere with the socket connector 200'. In this embodiment, each of the upper cooling module 300' and lower cooling module 500' is provided with an inlet I and an outlet O.

[0045] During assembly, the lower cooling module 500' is first assembled inside the main shielding housing 110'. Then, the main shielding housing 110' and the lower cooling module 500' are assembled from top to bottom onto the external circuit board 800'. Next, the rear shielding housing 120' is installed on the main shielding housing 110'. Then, the upper cooling module 300' is assembled on top of the shielding housing 100'. Finally, the fluid hose 505 is installed.

[0046] The contact protrusion of the electrical connector assembly 900 of the present invention can float relative to the cooling module, and the cooling module can float together with the shielding housing 100. This facilitates better contact and heat transfer between the plug module and the cooling module after insertion.

Claims

1. An electrical connector assembly comprising a shielding housing, the shielding housing including a top wall, a pair of outer side walls extending downward from both sides of the top wall, a vertical partition wall, and a plurality of separators, the top wall and the pair of outer side walls cooperating to form an internal space, the vertical partition wall dividing the internal space into a plurality of sub-spaces arranged laterally, the plurality of separators dividing each corresponding sub-space into an upper space, a lower space, and an intermediate channel located between the upper space and the lower space, each upper space and the lower space having a front end provided with a front port for inserting a plug module, characterized in that: The system further includes an upper cooling module disposed on the top of the shielding housing and a lower cooling module disposed in the middle channel. The upper cooling module includes an upper base and a plurality of upper contact protrusions extending downward from the upper base. Each upper contact protrusion extends downward into the corresponding upper space. The upper contact protrusions can float relative to the upper base, and the upper cooling module and the lower cooling module can float up and down together relative to the shielding housing.

2. The electrical connector assembly according to claim 1, characterized in that: The top wall of the shielding housing is provided with multiple upper openings, and the multiple upper contact protrusions extend into the upper space through the corresponding upper openings. The upper base spans the entire top wall of the shielding housing laterally. The upper cooling module also includes an internal elastic element and a heat-conducting material disposed between the corresponding upper contact protrusions and the upper base.

3. The electrical connector assembly according to claim 1, characterized in that: Each of the partitions includes an upper wall and a lower wall. The lower wall has a lower opening communicating with the lower space, and the upper wall has a downwardly protruding spring piece that abuts against the upper surface of the lower cooling module.

4. The electrical connector assembly according to claim 3, characterized in that: The lower cooling module includes a lower base and a plurality of lower contact protrusions extending downward from the bottom of the lower base. The lower base is housed within a central channel and laterally spans the central channel of all the partitions. The plurality of lower contact protrusions extend into the lower space through corresponding lower openings.

5. The electrical connector assembly according to claim 4, characterized in that: The lower base is provided with a plurality of positioning grooves that cooperate with the vertical partition wall. The positioning grooves pass through the front end of the lower base and can pass through the vertical partition wall to facilitate the installation of the lower cooling module into the middle channel from back to front.

6. The electrical connector assembly according to claim 5, characterized in that: The thickness of the lower base is less than the height of the middle channel to provide space for the lower cooling module to float vertically.

7. The electrical connector assembly according to claim 6, characterized in that: The device further includes a retainer with multiple positioning posts and multiple auxiliary elastic elements fitted onto the corresponding positioning posts. The lower cooling module also includes a pair of sidewalls located on both sides of the lower base, and the upper cooling module also includes a pair of sidewalls located on both sides of the upper base. The sidewalls of the upper cooling module are fixed to the sidewalls of the lower cooling module by screws. The sidewalls of the lower base are provided with multiple positioning holes, and the upper ends of the positioning posts are received in the corresponding positioning holes.

8. The electrical connector assembly according to claim 1, characterized in that: The electrical connector assembly includes two sub-connector assemblies spaced laterally. Each sub-connector assembly includes the shielding housing, an upper cooling module disposed on the top of the shielding housing, and a lower cooling module disposed in the intermediate channel. On the side of the two sub-connector assemblies that are close to each other, the lower cooling module of one sub-connector assembly has an inwardly recessed portion, and the lower cooling module of the other sub-connector assembly has an outwardly protruding portion that mates with the recessed portion. The upper cooling module and the lower cooling module of the same sub-connector assembly are fixed together by bolts, and the floating of different connector assemblies is independent of each other.

9. An electrical connector assembly comprising a shielding housing, the shielding housing including a top wall, a pair of outer side walls extending downward from the top wall, and a separator, the top wall and the pair of outer side walls cooperating to form an internal space, the separator dividing the internal space into an upper space, a lower space, and an intermediate channel located between the upper space and the lower space, the front ends of the upper space and the lower space each having a front port for inserting a plug module, characterized in that: The system further includes an upper cooling module disposed on the top of the shielding housing and a lower cooling module disposed in the intermediate channel. Both the upper cooling module and the lower cooling module are provided with coolant flow channels for coolant to flow through. The upper cooling module includes an upper contact protrusion that can extend into the upper space. The upper contact protrusion is floatable, and the upper cooling module and the lower cooling module can float together with the shielding housing.

10. An electrical connector assembly, comprising a shielding housing and a cooling module disposed on the top of the shielding housing, the shielding housing comprising a top wall and a pair of outer side walls located on both sides of the top wall in a lateral direction, the top wall and the pair of outer side walls together forming an internal space, the front end of the internal space having a front port for inserting a plug module, the cooling module having a coolant flow channel for coolant circulation, characterized in that: It also includes an auxiliary elastic element that is retractable relative to the shielding shell. The elastic force of the auxiliary elastic element can act on the cooling module. The cooling module includes a base, a contact protrusion extending from the base, an internal elastic element disposed between the base and the contact protrusion, and a heat-conducting material disposed between the contact protrusion and the base. The contact protrusion can extend into the internal space and can float relative to the base. The cooling module can float relative to the shielding shell.

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