CN114885581A

CN114885581A - Floating type heat dissipation assembly and electric connector thereof

Info

Publication number: CN114885581A
Application number: CN202210500816.5A
Authority: CN
Inventors: 田立春; 曾波; 陶明川
Original assignee: Suzhou Yihua Communicated Connector Co ltd
Current assignee: Suzhou Yihua Communicated Connector Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-08-09

Abstract

The application discloses floating radiator unit and electric connector thereof, floating radiator unit includes: the upper radiating assembly comprises an upper engaging part and an upper radiating seat combined with the upper engaging part; the lower radiating component comprises a lower engaging part and a lower radiating seat combined with the lower engaging part; and the connecting assembly is used for integrally connecting the upper radiating assembly with the lower radiating assembly. The upper radiating assembly and the lower radiating assembly are oppositely arranged in the vertical direction, a displacement gap is formed between the upper radiating assembly and the lower radiating assembly, and the upper engaging portion and the lower engaging portion can be in staggered engaging contact. Has excellent heat transfer effect.

Description

Floating type heat dissipation assembly and electric connector thereof

Technical Field

The application relates to a floating heat dissipation assembly and an electric connector thereof.

Background

In electronic devices, it is generally desirable to transfer thermal energy (or heat) away from a given component of a system or apparatus. For example, electrical connectors may be used to transfer data and/or power to and from different systems or devices. The data signals may be transmitted over the communication cable(s) in the form of optical and/or electrical signals. Such as IC connectors (PGA, etc.), IO connectors (Displayport, VGA, DVI, HDMI, USB, etc.), optical fiber connectors (FC, SC, ST, LC, D4, DIN, MU, MT, etc.), optical communication connections (SFP, QDFP, etc.), filter connectors, CATV connectors, backplane connectors, memory bank/memory connectors (DDR, SIMM, DIMM, PCI, SIM, etc.), high definition television connectors (radio frequency coaxial connectors, etc.), flexible circuit board connectors (FPC, FFC, etc.), network cable connectors (RJ45, etc.), Audio Video (AV) connectors, battery connectors, etc.

A common challenge facing developers of electrical systems is thermal management. Thermal energy generated by the electronics within the system can degrade the performance of the electronics and even damage components of the system. To dissipate thermal energy, systems typically include thermal components, such as thermal bridges, that engage the heat source, absorb thermal energy from the heat source, and transfer the thermal energy away. However, the heat energy transfer efficiency of the existing heat bridge is low. In addition, it is difficult to achieve efficient thermal coupling at the interface due to variations in the surface, for example due to surface flatness of the interface surface, etc.

Accordingly, there is a need for a heat transfer assembly that transfers thermal energy away from a component (e.g., the internal electronics of an electrical connector) and has an effective reduction in thermal resistance.

Disclosure of Invention

The present application provides a floating heat dissipation assembly and an electrical connector thereof, which have excellent heat transfer effect.

In order to achieve the purpose, the application provides the following technical scheme:

a floating heat sink assembly comprising:

the upper radiating assembly comprises an upper engaging part and an upper radiating seat combined with the upper engaging part;

the lower radiating component comprises a lower engaging part and a lower radiating seat combined with the lower engaging part;

the upper radiating assembly and the lower radiating assembly are oppositely arranged along the up-down direction, a displacement gap is formed between the upper radiating assembly and the lower radiating assembly, and the upper engaging part and the lower engaging part can realize staggered engaging contact;

when the upper radiating assembly and the lower radiating assembly are close to each other in the vertical direction, the contact area between the upper meshing part and the lower meshing part is gradually increased;

when the upper radiating assembly and the lower radiating assembly are far away from each other along the vertical direction, the contact area between the upper meshing part and the lower meshing part is gradually reduced;

and the connecting assembly is used for integrally connecting the upper radiating assembly with the lower radiating assembly.

Furthermore, the connecting component integrally connects one end of the upper radiating component with one end of the lower radiating component.

Furthermore, coupling assembling includes first elasticity wall portion, second elasticity wall portion and connects the connecting portion of first elasticity wall portion and second elasticity wall portion, first elasticity wall portion and second elasticity wall portion set up along upper and lower direction relatively, first elasticity wall portion and upper portion heat radiation component's one end body coupling, second elasticity wall portion and lower part heat radiation component's one end body coupling.

Further, the cross section of the connecting assembly is U-shaped or V-shaped.

Further, still including setting up the spring element between upper portion radiator unit and lower part radiator unit, spring element can provide reaction force when upper portion radiator unit and lower part radiator unit are close to each other along the upper and lower direction.

Further, the spring element comprises an upper spring member which upwards abuts against the inner side of the upper heat dissipation assembly and a lower spring member which downwards abuts against the inner side of the lower heat dissipation assembly, and at least one of the upper spring member or the lower spring member is provided with a through hole in a penetrating manner.

Further, floating radiator unit includes that a plurality of pieces pile up the fin that sets up along left right direction, each the fin includes the fin body, down the fin body and will go up the one end of fin body and the connector of the one end body coupling of fin body down, it forms with lower fin body along the relative interval that sets up of upper and lower direction to go up the fin body the displacement clearance, it is a plurality of go up the fin body and pile up the formation along left right direction upper portion radiator unit, it is a plurality of the fin body piles up the formation along left right direction down lower part radiator unit, it is a plurality of the connector is piled up the formation along left right direction coupling assembling.

Furthermore, the heat sink defines a plurality of first heat sinks and a plurality of second heat sinks stacked with the first heat sinks one by one at intervals, and an upper heat sink body of each first heat sink includes a first upper substrate and a first upper extending portion formed by extending the first upper substrate to a corresponding lower heat sink body; the lower heat dissipation plate body of each second heat dissipation plate comprises a second lower substrate and a second lower extension part formed by extending the second lower substrate to the corresponding upper heat dissipation plate body; the first upper base of first fin and the last fin body of second fin stack and form the upper portion radiating seat, the first extension of going up forms upper portion engagement portion, the second lower base of second fin and the lower fin body of first fin stack and form the lower part radiating seat, extension forms under the second lower part engagement portion.

Furthermore, the upper radiating fin body of each radiating fin comprises an upper substrate and a plurality of upper extending portions arranged at intervals and formed by extending the upper substrate to the corresponding lower radiating fin body, the lower radiating fin body of each radiating fin comprises a lower substrate and a plurality of lower extending portions arranged at intervals and formed by extending the lower substrate to the corresponding upper radiating fin body, the upper extending portions and the lower extending portions of the radiating fins are staggered and engaged, the upper substrate is stacked to form the upper radiating seat, the lower substrate is stacked to form the lower radiating seat, the upper extending portions form the upper engaging portions, and the lower extending portions form the lower engaging portions.

Further, the upper engaging portion is composed of a plurality of grid-like upper extending portions arranged at intervals, the lower engaging portion is composed of a plurality of grid-like lower extending portions arranged at intervals, and the upper extending portions and the lower extending portions are flat-plate-shaped.

Further, the heat sink device further comprises an end ledge, and the relative displacement amount of the upper heat dissipation assembly and the lower heat dissipation assembly along the up-down direction is limited within a specific range by the end ledge.

Further, the end wall frame is at least arranged at one end of the upper heat dissipation assembly and one end of the lower heat dissipation assembly, which are far away from the connecting assembly.

an electric connector comprises a connector module and the floating heat dissipation assembly, wherein the floating heat dissipation assembly comprises a connector module and the connector assembly arranged in the connector module, the connector module comprises a shielding case and the connector assembly arranged in the shielding case, the shielding case comprises a top plate and two side plates combined with the two sides of the top plate, a butt joint space and an insertion hole for inserting a butt joint module are defined in the shielding case, an assembling hole is formed in the top plate, the floating heat dissipation assembly is arranged in the shielding case, and a part of the lower heat dissipation assembly penetrates through the assembling hole and protrudes into the butt joint space to be correspondingly contacted with the butt joint module.

Compared with the prior art, the beneficial effects of this application are: has excellent heat transfer effect.

Drawings

Fig. 1 is a perspective view of an electrical connector of the present application, particularly illustrating a floating heat sink assembly in combination with a shielding cage, wherein the connector assembly is not shown.

Fig. 2 is a partially exploded perspective view of the electrical connector of the present application.

Fig. 3 is a perspective view of the floating heat sink assembly of the electrical connector of the present application, showing spring elements.

Fig. 4 is a partial exploded perspective view of the floating heat sink assembly of the electrical connector of the present application, wherein the spring elements are not shown.

Fig. 5 is a top view of the electrical connector of fig. 1.

Fig. 6 is a cross-sectional view taken along line a-a of fig. 5.

Fig. 7 is a sectional view taken along line B-B in fig. 5.

Fig. 8 is a cross-sectional view taken along line C-C of fig. 5.

Fig. 9 is another embodiment of the floating heat sink assembly of the present application.

Fig. 10 is another embodiment of a fin of the floating heat sink assembly of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For the sake of accuracy of the entire description, all the references to directions refer to fig. 1, and the direction of the X axis is defined as the left-right direction (i.e. the width direction of the electrical connector of the present application); defining the direction of the Z axis as the front-back direction (namely the butt joint direction of the electric connector and the butt joint module); the direction of the Y axis is defined as the up-down direction.

Referring to fig. 1 to 10, an electrical connector disclosed in the present application includes a connector module (not numbered) and a floating heat dissipation assembly 200 mated with the connector module. The connector module includes a shielding cage 3 and a connector assembly (not shown) disposed within the shielding cage. The shielding case 3 is formed by stamping and bending a metal plate, and includes a top plate 31, two side plates 32 located on both sides of the top plate 31, one end plate 33 located at one end of the top plate 31 in the front-rear direction, and a bottom plate 34 disposed opposite to the top plate 31.

The top plate 31, the two side plates 32, the end plate 33 and the bottom plate 34 are defined to define a butt space 300 and form an open insertion opening 30 at one end far from the end plate 33. The insertion opening 30 is used for inserting a docking module (not shown), such as a plug connector, and the docking space 300 is used for accommodating the inserted docking module. An assembly hole 310 is formed through the top plate 31 in the vertical direction, the floating heat dissipation assembly 200 is disposed at the position of the assembly hole 310 of the shielding housing 3, a portion of the floating heat dissipation assembly 200 protrudes into the docking space 300 through the assembly hole 310 to correspond to the docking module and achieve heat transfer, and a portion of the floating heat dissipation assembly 200 protrudes upward above the top plate 31 for heat dissipation. The floating heat sink assembly 200 absorbs heat from the docking module and dissipates the heat therefrom.

Referring to fig. 1 to 4, the floating heat dissipation assembly 200 includes a plurality of heat dissipation fins 10 stacked in a left-right direction, each of the heat dissipation fins 10 includes an upper heat dissipation fin body 101, a lower heat dissipation fin body 102, and a connecting body 103 integrally connecting one end of the upper heat dissipation fin body 101 and one end of the lower heat dissipation fin body 102. Go up heat dissipation piece body 101 and lower heat dissipation piece body 102 and form displacement clearance 100 along the relative setting of upper and lower direction between and interval, it is a plurality of go up heat dissipation piece body 101 and pile up along left right direction and set up formation upper portion radiator unit 11, it is a plurality of heat dissipation piece body 102 piles up along left right direction and sets up formation lower part radiator unit 12 down, and is a plurality of connector 103 piles up along left right direction and sets up formation coupling assembling 13.

Referring to fig. 2 to 4, the heat sink 10 defines a plurality of first heat sinks 1001 and a plurality of second heat sinks 1002 stacked with the plurality of first heat sinks 1001 at an interval in the left-right direction. The upper heat sink body 101 of each of the first heat sinks 1001 includes a first upper substrate 1011 and a first upper extending portion 1012 formed by extending the first upper substrate 1011 to the corresponding lower heat sink body 102; the lower heat sink body 102 of each of the second heat sinks 1002 includes a second lower substrate 1021 and a second lower extension 1022 formed by extending the second lower substrate 1021 to the corresponding upper heat sink body 101; the first upper substrate 1011 of the first heat sink 1001 and the upper heat sink body 101 of the second heat sink 1002 are stacked to form an upper heat sink base 112; the second bottom substrate 1021 of the second heat sink 1002 and the bottom heat sink body 102 of the first heat sink 1001 are stacked to form the bottom heat sink 122.

Referring to fig. 8 in combination with fig. 3 and 4, in the present embodiment, each of the first upper extending portions 1012 is shaped like a flat plate, and a plurality of the first upper extending portions 1012 are arranged at intervals along the left-right direction to form a grid shape; each of the second lower extensions 1022 is shaped like a flat plate, and a plurality of the second lower extensions 1022 are spaced apart to form a grid. The plurality of first upper extensions 1012 collectively form an upper engagement portion, and the plurality of second lower extensions 1022 collectively form a lower engagement portion. The upper heat dissipation assembly 11 and the lower heat dissipation assembly 12 are arranged oppositely in the vertical direction, the upper engagement portion and the lower engagement portion are in staggered engagement contact, and the upper heat dissipation assembly 11 and the lower heat dissipation assembly 12 can be close to or distant from each other in the vertical direction. When the upper heat dissipating assembly 11 and the lower heat dissipating assembly 12 are close to each other in the vertical direction (for example, when the docking module is inserted into the docking space 300, the docking module abuts against the lower surface of the lower heat dissipating assembly 12 and pushes the lower heat dissipating assembly 12 upward relative to the top plate 31), the contact area between the upper engaging portion and the lower engaging portion gradually increases; when the upper heat sink 11 and the lower heat sink 12 are separated from each other in the vertical direction (for example, when the docking module is pulled out from the docking space 300, the docking module is separated from the lower surface of the lower heat sink 12, and the lower heat sink 12 moves downward relative to the top plate 31 by its own weight and the restoring force of the spring element 14 and the connecting member 13 described below), the contact area between the upper engaging portion and the lower engaging portion becomes gradually smaller. In practical use, during the process of inserting and extracting the docking module, the upper heat dissipation assembly 11 is fixed relative to the top plate 31, and certainly, under the action of artificial downward external pressure, the upper heat dissipation assembly 11 can also move downward relative to the top plate 31.

Referring to fig. 3 and 4, the connecting assembly 13 includes a first elastic wall 131, a second elastic wall 132, and a connecting portion 133 connecting the first elastic wall 131 and the second elastic wall 132, the first elastic wall 131 and the second elastic wall 132 are disposed opposite to each other in the vertical direction, the first elastic wall 131 is integrally connected to one end of the upper heat dissipating assembly 11, and the second elastic wall 132 is integrally connected to one end of the lower heat dissipating assembly 12. In particular, the cross section of the connecting assembly 13 is U-shaped, or V-shaped. More specifically, in the present embodiment, the connecting body 103 of each heat sink 10 includes a first elastic wall 131, a second elastic wall 132, and a connecting portion 133 connecting the first elastic wall 131 and the second elastic wall 132.

The heat dissipation fins 10 stacked in the left-right direction to form the floating heat dissipation assembly 200 have another embodiment (refer to fig. 10), specifically, the upper heat dissipation fin body 101 of each heat dissipation fin 10 includes an upper substrate 1101 and a plurality of upper extension portions 1102 arranged at intervals and extending toward the corresponding lower heat dissipation fin body 102; the lower fin body 102 of each of the fins 10 includes a lower base sheet 1103 and a plurality of lower extension portions 1104 extending toward the corresponding upper fin body 101 and disposed at intervals. A plurality of upper extension parts 1102 and a plurality of lower extension parts 1104 of the same cooling fin 10 are in staggered engagement; a plurality of the upper substrates 1101 are stacked in the left-right direction to form an upper heat sink 112; a plurality of the lower substrates 1103 are stacked in the left-right direction to form a lower heat sink 122; the plurality of upper extensions 1102 form an upper engagement portion; a plurality of the lower extensions 1104 form a lower engagement portion.

Of course, in other embodiments, the floating heat sink assembly 200 has another embodiment (not shown, and the related reference numbers refer to the embodiment of fig. 10), in which the floating heat sink assembly 200 is formed by a single metal plate through a milling process, that is, the upper heat sink body 101 is a single metal plate, the lower heat sink body 102 is a single metal plate, and the connecting component 13 is formed by bending a complete metal plate integrated with the upper heat sink body 101 and the lower heat sink body 102. The upper engaging part and the lower engaging part are respectively a plurality of protruding columns (or grid-shaped protruding sheets) arranged in an array. Of course, upper fin body 101 and lower fin body 102 are also disposed opposite to each other in the vertical direction, and the upper engaging portion and the lower engaging portion are also in staggered engagement contact.

Referring to fig. 1, 2, 6 and 7, an upper mounting protrusion 113 extends from one end of the upper heat dissipating element 11 of the floating heat dissipating element 200 adjacent to the insertion opening 30, a lower mounting protrusion 114 extends from one end of the lower heat dissipating element 12 adjacent to the insertion opening 30, and the upper mounting protrusion 113 and the lower mounting protrusion 114 are disposed opposite to each other in the vertical direction. An end wall frame 15 is stamped and bent from sheet metal, said end wall frame 15 being in the form of an open rectangular ring. The upper mounting projections 113 and the lower mounting projections 114 are vertically regulated in the end ledge 15, and the upper mounting projections 113 and the lower mounting projections 114 are vertically floatable in the end wall frame 15.

Specifically, in the present application, the end wall mount 15 is provided with two, one is located at an end of the floating heat dissipation device 200 adjacent to the insertion port 30, and the other is located at an end of the floating heat dissipation device 200 away from the insertion port 30 (i.e. the end wall mount is correspondingly sleeved on the connection component 13, as shown in fig. 1 and 2). A first metal assembly member 161 having one end inserted into end wall frame 15 adjacent to insertion port 30 and the other end fitted around the opening of end wall frame 15 remote from insertion port 30; a second metal assembly 162 has one end inserted into end wall frame 15 remote from insertion port 30 and the other end fitted around the opening of end wall frame 15 adjacent to insertion port 30. The first metal assembly part 161 and the second metal assembly part 162 are disposed at two ends of the floating heat dissipation component 200 along the left-right direction, and the floating heat dissipation component 200 and the shielding housing 3 are fixed by the first metal assembly part 161 and the second metal assembly part 162 correspondingly combined with the shielding housing 3 (which may be in a snap-fit manner or a welding manner).

Referring to fig. 2, 3, 6 and 7, a spring element 14 formed by stamping and bending a metal plate is further provided, the spring element 14 is disposed between the upper heat dissipating assembly 11 and the lower heat dissipating assembly 12, and is capable of providing a reaction force when the upper heat dissipating assembly 11 and the lower heat dissipating assembly 12 approach each other in the vertical direction, and the spring element 14 functions as a compression spring. Specifically, the spring element 14 includes an upper spring member 141 upwardly abutting against the inner side of the upper heat sink 11 and a lower spring member 142 downwardly abutting against the inner side of the lower heat sink 12, through holes 140 are formed through the upper spring member 141 and the lower spring member 142, and the through holes 140 are used for reducing the rigidity of the spring element 14. Referring to fig. 6 or 7, the spring member 14 is generally V-shaped in cross-section; or from the inside to the opening direction, at least one section of the variation trend of the spacing width between the upper spring member 141 and the lower spring member 142 is changed from small to large.

Referring to fig. 9 in combination with fig. 8, in order to enable the floating heat sink assembly 200 to quickly dissipate heat absorbed from the docking module, the upper heat sink body 101 of a part of the heat sink 10 is further formed with extended heat dissipating fins 1013 extending upward, and the extended heat dissipating fins 1013 are arranged in a grid-like interval for increasing a heat dissipating area.

The floating type heat dissipation assembly 200 in the application can better realize the fit degree with a butt joint module, the heat dissipation effect is improved, and meanwhile, the upper heat dissipation sheet body 101 and the lower heat dissipation sheet body 102 are integrated through the design of the connecting assembly 13, so that the floating type heat dissipation assembly is easy to manufacture; in addition, the connecting assembly 13 can serve as a reference positioning function when the plurality of heat sinks 10 are stacked and assembled, so that the stacking and assembling of the plurality of heat sinks 10 are easier.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A floating heat sink assembly, comprising:

2. A floating heat dissipating assembly as claimed in claim 1, wherein: the connecting assembly is used for integrally connecting one end of the upper radiating assembly with one end of the lower radiating assembly.

3. A floating heat dissipating assembly as claimed in claim 2, wherein: coupling assembling includes first elasticity wall portion, second elasticity wall portion and connects the connecting portion of first elasticity wall portion and second elasticity wall portion, first elasticity wall portion and second elasticity wall portion set up along upper and lower direction relatively, first elasticity wall portion and upper portion heat radiation component's one end body coupling, second elasticity wall portion and lower part heat radiation component's one end body coupling.

4. A floating heat sink assembly as claimed in claim 2, characterized in that: the cross section of the connecting component is U-shaped or V-shaped.

5. A floating heat sink assembly as claimed in any one of claims 1 to 4, characterized in that: the spring element can provide reaction force when the upper radiating assembly and the lower radiating assembly are close to each other in the vertical direction.

6. A floating heat sink assembly as claimed in claim 5, characterized by: the spring element comprises an upper spring component and a lower spring component, wherein the upper spring component upwards props against the inner side of the upper heat dissipation component, the lower spring component downwards props against the inner side of the lower heat dissipation component, and at least one of the upper spring component and the lower spring component is provided with a through hole in a penetrating mode.

7. A floating heat sink assembly as claimed in any one of claims 1 to 4, characterized in that: floating radiator unit includes that a plurality of pieces pile up the fin that sets up along left right direction, each the fin includes the fin body, down the fin body and will go up the one end of fin body and the connector of the one end body coupling of fin body down, go up the fin body and the relative setting of lower fin body along upper and lower direction and between the interval form the displacement clearance, it is a plurality of go up the fin body and pile up the formation along left right direction upper portion radiator unit, a plurality of the formation is piled up along left right direction to the fin body down lower part radiator unit, it is a plurality of the connector is along controlling the direction and pile up the formation coupling assembling.

8. A floating heat sink assembly as claimed in claim 7, wherein: the radiating fins are defined with a plurality of first radiating fins and a plurality of second radiating fins which are stacked with the first radiating fins at intervals one by one, and the upper radiating fin body of each first radiating fin comprises a first upper substrate and a first upper extending part which is formed by extending the first upper substrate to the corresponding lower radiating fin body; the lower heat dissipation plate body of each second heat dissipation plate comprises a second lower substrate and a second lower extension part formed by extending the second lower substrate to the corresponding upper heat dissipation plate body; the first upper base of first fin and the last fin body of second fin stack and form the upper portion radiating seat, the first extension of going up forms upper portion engagement portion, the second lower base of second fin and the lower fin body of first fin stack and form the lower part radiating seat, extension forms under the second lower part engagement portion.

9. A floating heat sink assembly as claimed in claim 7, wherein: each last fin body of fin includes the upper portion substrate and extends the upper portion extension that forms a plurality of interval setting that forms by the upper portion substrate to the lower fin body that corresponds, each lower fin body of fin includes the lower part substrate and extends the lower part extension that forms a plurality of interval setting by the lower part substrate to the last fin body that corresponds, and is the same a plurality of upper portion extension and a plurality of lower part extension dislocation meshing of fin, the upper portion substrate piles up and forms the upper portion radiating seat, the lower part substrate piles up and forms the lower part radiating seat, the upper portion extension forms upper portion meshing portion, the lower part extension forms lower part meshing portion.

10. A floating heat dissipating assembly as claimed in claim 1 or 2 or 3 or 4 or 7, wherein: the upper meshing part is composed of a plurality of grid-shaped upper extension parts arranged at intervals, the lower meshing part is composed of a plurality of grid-shaped lower extension parts arranged at intervals, and the upper extension parts and the lower extension parts are flat-shaped.

11. A floating heat dissipating assembly as claimed in claim 1 or 2 or 3 or 4, characterized in that: and an end ledge, wherein the relative displacement of the upper heat dissipation component and the lower heat dissipation component along the up-down direction is limited within a specific range by the end ledge.

12. A floating heat sink assembly as recited in claim 11, wherein: the end wall frame is at least arranged at one end of the upper heat dissipation assembly and one end of the lower heat dissipation assembly, which are far away from the connecting assembly.

13. An electrical connector, comprising: the floating heat dissipation device comprises a connector module and the floating heat dissipation device as claimed in any one of claims 1 to 12, wherein the connector module comprises a shielding case and the connector assembly disposed in the shielding case, the shielding case comprises a top plate and two side plates combined with two sides of the top plate, the shielding case defines a docking space and an insertion opening for inserting the docking module, the top plate is provided with an assembly hole, the floating heat dissipation device is disposed in the shielding case, and a portion of the lower heat dissipation device protrudes into the docking space through the assembly hole to be in contact with the docking module.