CN220707474U - Radiating fin group and radiating system - Google Patents

Abstract

The utility model provides a radiating fin group and a radiating system, which relate to the technical field of radiators and are used for optimizing the structure of the radiating fin group to a certain extent and reducing the maintenance difficulty and the maintenance cost of the radiating fin group. The utility model provides a radiating fin group, which comprises a plurality of radiating units and a butt joint assembly; the two ends of the heat radiating unit are connected with a butt joint assembly, a first threaded part is formed at the first end of the heat radiating unit, a second threaded part is formed at the second end of the heat radiating unit, the butt joint assembly comprises a butt joint part and a sealing part, a third threaded part is formed at the two ends of the butt joint part, and the sealing part is sleeved in the middle of the butt joint part; the first thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece, and the second thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece.

Description

Radiating fin group and radiating system

Technical Field

The present utility model relates to the field of heat sinks, and in particular, to a heat sink assembly and a heat dissipation system.

Background

The radiator can radiate the heat carried in water indoors, so that the indoor temperature can be raised, and the radiator is widely applied to winter heating in the north. Since the present stage is mainly central heating, hot water flows through pipelines of each household after flowing out from the boiler, and finally circulates back to the boiler.

However, in the process of flowing in the pipeline, a large amount of impurities such as water rust and the like remain in the long-term heating pipeline, so that the radiator may be blocked or leaked after long-term use.

However, when a problem of clogging or water leakage occurs in one or more heat dissipation columns, the entire radiator needs to be replaced, which increases the replacement cost.

Therefore, there is an urgent need to provide a heat sink assembly and a heat dissipation system to solve the problems in the prior art to a certain extent.

Disclosure of Invention

The utility model aims to provide a radiating fin group and a radiating system, so that the radiating fin group structure is optimized to a certain extent, and the maintenance difficulty and the maintenance cost of the radiating fin group are reduced.

The utility model provides a radiating fin group, which comprises a plurality of radiating units and a butt joint assembly; the heat dissipation device comprises a heat dissipation unit, wherein two ends of the heat dissipation unit are connected with a butt joint assembly, a first threaded part is formed at the first end of the heat dissipation unit, a second threaded part is formed at the second end of the heat dissipation unit, the butt joint assembly comprises a butt joint part and a sealing part, a third threaded part is formed at the two ends of the butt joint part, and the sealing part is sleeved in the middle of the butt joint part; the first thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece, and the second thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece.

The heat dissipation unit comprises a heat dissipation wing column, a first connecting piece and a second connecting piece; the first connecting piece and the second connecting piece are three-way pipe fittings, a first end of the first connecting piece is connected with one end of the heat dissipation wing column, and the first threaded part is formed at a second end and a third end of the first connecting piece; the first end of the second connecting piece is connected with the other end of the heat dissipation wing column, and the second threaded part is formed at the second end and the third end of the second connecting piece.

Specifically, the heat dissipation wing column comprises an inner pipe and a shell, wherein a mounting cavity penetrating through the shell in the length direction of the shell is formed in the shell, the inner pipe is embedded in the mounting cavity, one end of the inner pipe is connected with the first end of the first connecting piece, and the other end of the inner pipe is connected with the first end of the second connecting piece.

Further, the inner tube is connected with the outer shell in an expanded mode, two ends of the inner tube protrude out of the mounting cavity, and two ends of the inner tube are connected with the first connecting piece and the second connecting piece in a hot melting mode respectively.

Further, both ends of the inner tube protrude out of the mounting cavity by 3cm-5cm, and the length of the first end of the first connecting piece and the length of the first end of the second connecting piece are 3cm-5cm in adaptation with the length of the inner tube protruding out of the mounting cavity.

Further, the first end of the first connector and the first end of the second connector each have an outer diameter that is no greater than the inner diameter of the inner tube.

The shell is made of aluminum materials, and the inner tube, the first connecting piece, the second connecting piece and the butt joint piece are made of graphene polyethylene composite materials.

Specifically, the shell comprises a main body part and a fin part, wherein the cross section of the main body part is in an hourglass shape, the installation cavity is formed in the center of the main body part, and the fin part is distributed on the main body part and extends along the length direction of the main body part.

Further, the heat dissipation fin set provided by the utility model further comprises a first blocking piece and a second blocking piece, wherein the first blocking piece is blocked in the second end of the first connecting piece or the second end of the second connecting piece of the first heat dissipation unit, and the second blocking piece is blocked in the third end of the first connecting piece or the third end of the second connecting piece of the last heat dissipation unit.

Compared with the prior art, the radiating fin group provided by the utility model has the following advantages:

the utility model provides a radiating fin group, which comprises a plurality of radiating units and a butt joint assembly; the two ends of the heat radiating unit are connected with a butt joint assembly, a first threaded part is formed at the first end of the heat radiating unit, a second threaded part is formed at the second end of the heat radiating unit, the butt joint assembly comprises a butt joint part and a sealing part, a third threaded part is formed at the two ends of the butt joint part, and the sealing part is sleeved in the middle of the butt joint part; the first thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece, and the second thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece.

From this analysis, through the first screw thread portion that forms at the first end of radiating element and the second screw thread portion that forms of second end to can be through the butt joint piece that corresponds radiating element both ends set up, realize the connection of two adjacent radiating element, and then realize the connection of a plurality of radiating elements, accomplish the integrated into one piece of fin group.

Because the heat dissipation unit that links to each other among this application carries out threaded connection through the butt joint spare and realizes the combination, consequently, be detachable connection between a plurality of heat dissipation units to when seepage or jam appear in a certain heat dissipation unit, can dismantle the heat dissipation unit of damage alone, and assemble new heat dissipation unit into groups, and then only change the heat dissipation unit of damage can, need not whole fin group and change, very big saving the replacement cost.

And, because all be detachable connection between every radiating element in this application, consequently, when the maintenance, can disassemble the dispersion with radiating element to solitary radiating element has sufficient maintenance space and carries out such as maintenance means such as welding or washing, very big promotion maintenance efficiency, and reduce the maintenance degree of difficulty.

It can be appreciated that, because the butt joint piece and the radiating unit in this application adopt threaded connection's mode to be connected, consequently, through the sealing member that overlaps respectively establishes at the both ends of butt joint piece, when the butt joint piece is connected with the radiating unit, can compress the sealing member, realize the sealing between radiating unit and the butt joint piece, avoid the problem of seepage appearing by junction after the connection.

In addition, the application also provides a heat dissipation system which comprises a water inlet pipe, a water outlet pipe and the heat dissipation fin group; the water inlet pipe is communicated with the first heat radiating unit, and the water outlet pipe is communicated with the last heat radiating unit.

By adopting the heat radiation system of the heat radiation fin group, when a certain heat radiation unit or a plurality of heat radiation units in the heat radiation fin group are damaged in a certain time, the heat radiation system can be independently replaced or maintained, so that the replacement cost can be increased, and the maintenance difficulty can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a first view angle of a heat dissipating unit in a heat dissipating fin set according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second view angle of a heat dissipating unit in a heat dissipating fin set according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a third view angle of a heat dissipating unit in a heat dissipating fin set according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a butt joint member in a fin group according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of an overall structure of a fin group according to an embodiment of the present utility model.

In the figure: 1-heat dissipation wing columns; 101-a body part; 102-fin portions; 2-an inner tube; 3-butting piece; 301-a third threaded portion; 4-a first connector; 5-a second connector; 6-a first end; 7-a second end; 8-third terminal.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "coupled" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent after an understanding of the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

As shown in fig. 1-5, the present utility model provides a heat sink assembly, comprising a plurality of heat dissipating units and a docking assembly; the two ends of the heat radiating unit are connected with a butt joint assembly, a first threaded part is formed at a first end 6 of the heat radiating unit, a second threaded part is formed at a second end 7 of the heat radiating unit, the butt joint assembly comprises a butt joint part 3 and a sealing piece, a third threaded part 301 is formed at the two ends of the butt joint part 3, and the sealing piece is sleeved in the middle of the butt joint part 3; the first screw thread parts of the adjacent heat dissipation units are respectively in screw thread connection with the third screw thread parts 301 at the two ends of the butt joint assembly and compress the sealing piece, and the second screw thread parts of the adjacent heat dissipation units are respectively in screw thread connection with the third screw thread parts 301 at the two ends of the butt joint assembly and compress the sealing piece.

Compared with the prior art, the radiating fin group provided by the utility model has the following advantages:

according to the radiating fin group provided by the utility model, the first threaded part formed at the first end 6 and the second threaded part formed at the second end 7 of the radiating unit are used for realizing the connection of two adjacent radiating units through the butt joint parts 3 arranged at the two ends of the corresponding radiating units, so that the connection of a plurality of radiating units is realized, and the integral forming of the radiating fin group is completed.

Because continuous radiating element carries out threaded connection through butt joint 3 in this application and realizes the combination, consequently, be detachable connection between a plurality of radiating elements to when seepage or jam appear in a certain radiating element, can dismantle the radiating element of damage alone, and assemble new radiating element into groups, and then only change the radiating element of damage can, need not whole fin group and change, very big saving the replacement cost.

And, because all be detachable connection between every radiating element in this application, consequently, when the maintenance, can disassemble the dispersion with radiating element to solitary radiating element has sufficient maintenance space and carries out such as maintenance means such as welding or washing, very big promotion maintenance efficiency, and reduce the maintenance degree of difficulty.

It can be appreciated that, because the butt joint piece 3 and the heat dissipation unit in the application are connected in a threaded connection mode, the sealing piece is sleeved in the middle of the butt joint piece 3, and when the butt joint piece 3 is connected with the heat dissipation unit, the sealing piece can be compressed, so that the sealing between the heat dissipation unit and the butt joint piece 3 is realized, and the problem that leakage occurs at the joint after connection is avoided.

Optionally, as shown in fig. 1-4, the heat dissipating unit in the present application includes a heat dissipating wing post 1, a first connecting member 4, and a second connecting member 5; the first connecting piece 4 and the second connecting piece 5 are three-way pipe fittings, a first end 6 of the first connecting piece 4 is connected with one end of the heat dissipation wing column 1, and a first thread part is formed at a second end 7 and a third end 8 of the first connecting piece 4; the first end 6 of the second connecting piece 5 is connected with the other end of the heat dissipation wing column 1, and the second threaded portion is formed at the second end 7 and the third end 8 of the second connecting piece 5.

The two ends of the heat dissipation wing column 1 refer to the water inlet end and the water outlet end of the heat dissipation wing column 1, and the water outlet end is connected with the second connecting piece 5 through the first connecting piece 4 connected with the water inlet end, so that circulation of hot water can be realized.

It can be appreciated that, because the first connecting piece 4 and the second connecting piece 5 in the present application need to connect the butt joint piece 3 and the heat dissipation wing column 1, the first connecting piece 4 and the second connecting piece 5 in the present application all adopt tee pipe fitting, that is, have three connectors, are connected with the heat dissipation wing column 1 through the first end 6, and the second end 7 and the third end 8 are respectively connected with the corresponding butt joint piece 3, thereby not only being capable of realizing the communication with the heat dissipation wing column 1, but also being capable of realizing the communication with the adjacent heat dissipation units.

Optionally, as shown in fig. 3, the heat dissipation wing column 1 in the present application includes an inner tube 2 and a housing, a mounting cavity penetrating through the housing along a length direction of the housing is formed in the housing, the inner tube 2 is embedded in the mounting cavity, one end of the inner tube 2 is connected with a first end 6 of the first connecting piece 4, and the other end of the inner tube 2 is connected with a first end 6 of the second connecting piece 5.

Through the installation cavity that forms in the shell, can provide stable mounted position for inner tube 2 to can dispel the heat through the shell, carry out the flow of water through inner tube 2, and then can improve the life of heat dissipation wing post 1 to a certain extent.

In addition, since the two ends of the heat dissipation wing column 1 in the present application need to be connected to the first connecting piece 4 and the second connecting piece 5 respectively, the connection between the heat dissipation wing column and the first connecting piece 4 and the second connecting piece 5 can be facilitated by the inner tube 2 embedded in the installation cavity.

Preferably, the inner tube 2 in the application is expanded with the outer shell, both ends of the inner tube 2 are protruded out of the mounting cavity, and both ends of the inner tube 2 are respectively connected with the first connecting piece 4 and the second connecting piece 5 in a hot melting mode.

The inner tube 2 and the shell are expanded, the inner tube 2 with the outer diameter smaller than the diameter of the installation cavity is inserted into the installation cavity, the inner diameter of the inner tube 2 is expanded through equipment such as a reamer, the outer diameter of the expanded inner tube 2 is larger than the diameter of the installation cavity, and therefore stable connection between the inner tube 2 and the shell can be achieved.

And in order to be convenient for the quick-operation joint of inner tube 2 and first connecting piece 4 and second connecting piece 5, the both ends of inner tube 2 in this application bulge respectively in the installation cavity to through the part of inner tube 2 bulge in the installation cavity, can reduce the connection degree of difficulty between first connecting piece 4 and second connecting piece 5 and the inner tube 2.

Further preferably, both ends of the inner tube 2 in the present application protrude from the mounting cavity by 3cm-5cm, and the length of the first end 6 of the first connecting piece 4 and the length of the first end 6 of the second connecting piece 5 are adapted to 3cm-5cm with the length of the inner tube 2 protruding from the mounting cavity.

The above-mentioned adaptation of the length of the first end 6 of the first connecting member 4 and the length of the first end 6 of the second connecting member 5 to the length of the inner tube 2 protruding from the installation cavity means that when the length of the inner tube 2 protruding from the installation cavity corresponding to the first connecting member 4 is 3cm, the length of the first end 6 of the first connecting member 4 is 3cm, and when the length of the inner tube 2 protruding from the installation cavity corresponding to the first connecting member 4 is 5cm, the length of the first end 6 of the second connecting member 5 is 5cm.

It can be understood that the lengths of the two ends of the inner tube 2 protruding from the mounting cavity may be different in this application, but because the two ends need to be butted with the first connecting piece 4 and the second connecting piece 5, and the first connecting piece 4 and the second connecting piece 5 are all tee pipe pieces with corresponding standard sizes, preferably, the lengths of the two ends of the inner tube 2 protruding from the mounting cavity are the same and are matched with the first ends 6 of the first connecting piece 4 and the second connecting piece 5.

Alternatively, the outer diameter of the first end 6 of the first connecting piece 4 and the outer diameter of the first end 6 of the second connecting piece 5 are not larger than the inner diameter of the inner tube 2, so that the first connecting piece 4 and the second connecting piece 5 can be correspondingly inserted into two ends of the inner tube 2 when assembled, and sealing connection is realized through hot melting.

Optionally, the shell in this application is made by aluminium system material, can increase the radiating effect, and inner tube 2, first connecting piece 4, second connecting piece 5 and interfacing part 3 in this application are by graphite alkene polyethylene composite material.

Because inner tube 2, first connecting piece 4, second connecting piece 5 and butt joint piece 3 all need to cross water, consequently, this application all adopts graphite alkene polyethylene combined material with inner tube 2, first connecting piece 4, second connecting piece 5 and butt joint piece 3, can have better corrosion resistance, and be difficult for the seepage, and the life-span is longer, and safe and reliable.

Alternatively, as shown in fig. 3, the housing in the present application includes a main body portion 101 and a fin portion 102, the cross section of the main body portion 101 is in an hourglass shape, the installation cavity is formed at the center position of the main body portion 101, and the fin portion 102 is distributed on the main body portion 101 and extends along the length direction of the main body portion 101.

The hourglass-shaped main body 101 can save more material, and the area for disposing the fin portions 102 can be increased to some extent, thereby increasing the number of fin portions 102. Accordingly, the fin portion 102 added to the outer surface of the main body portion 101 can increase the heat dissipation area of the housing, thereby improving the heat dissipation effect.

Optionally, the fin group provided by the utility model further comprises a first blocking piece and a second blocking piece, wherein the first blocking piece is blocked in the second end 7 of the first connecting piece 4 or the second end 7 of the second connecting piece 5 of the first radiating unit, and the second blocking piece is blocked in the third end 8 of the first connecting piece 4 or the third end 8 of the second connecting piece 5 of the last radiating unit.

Since the fin group generally has only one water inlet end and one water outlet end, and in order to realize connection of the heat dissipating unit, in this application, the first sealing member and the second sealing member are installed at corresponding positions after the group, both between the second end 7 and the third end 8 of the first connecting member 4 and between the second end 7 and the third end 8 of the second connecting member 5 are in a conductive state.

It will be appreciated that, as shown in fig. 5, when the second end 7 of the first connecting member 4 of the first heat dissipating unit is the water inlet end and the third end 8 of the first connecting member 4 of the last heat dissipating unit is the water outlet end, the first blocking member needs to be disposed in the second end 7 of the second connecting member 5 of the first heat dissipating unit, and the second blocking member needs to be disposed in the third end 8 of the second connecting member 5 of the last heat dissipating unit, so as to achieve normal flow of hot water.

When the second end 7 of the second connecting piece 5 of the first heat dissipating unit is a water inlet end and the third end 8 of the second connecting piece 5 of the last heat dissipating unit is a water outlet end, the first blocking piece is required to be arranged in the second end 7 of the first connecting piece 4 of the first heat dissipating unit, and the second blocking piece is required to be arranged in the third end 8 of the first connecting piece 4 of the last heat dissipating unit, so that the normal flow of hot water is realized.

That is, the fin group provided by the application is provided with four water gaps, one water inlet and one water outlet can be selected according to requirements in actual use, and the first blocking piece and the second blocking piece can be blocked in the other two water gaps, and the detailed description is omitted.

In addition, the application also provides a heat dissipation system which comprises a water inlet pipe, a water outlet pipe and the heat dissipation fin group; the water inlet pipe is communicated with the first radiating unit, and the water outlet pipe is communicated with the last radiating unit.

By adopting the heat radiation system of the heat radiation fin group, when a certain heat radiation unit or a plurality of heat radiation units in the heat radiation fin group are damaged in a certain time, the heat radiation system can be independently replaced or maintained, so that the replacement cost can be increased, and the maintenance difficulty can be reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A heat sink assembly comprising a plurality of heat dissipating units and a docking assembly;

the heat dissipation device comprises a heat dissipation unit, wherein two ends of the heat dissipation unit are connected with a butt joint assembly, a first threaded part is formed at the first end of the heat dissipation unit, a second threaded part is formed at the second end of the heat dissipation unit, the butt joint assembly comprises a butt joint part and a sealing part, a third threaded part is formed at the two ends of the butt joint part, and the sealing part is sleeved in the middle of the butt joint part;

the first thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece, and the second thread parts of the adjacent heat dissipation units are respectively in threaded connection with the third thread parts at the two ends of the butt joint assembly and compress the sealing piece.

2. The heat sink assembly of claim 1 wherein the heat dissipating unit comprises a heat dissipating stud, a first connector, and a second connector;

the first connecting piece and the second connecting piece are three-way pipe fittings, a first end of the first connecting piece is connected with one end of the heat dissipation wing column, and the first threaded part is formed at a second end and a third end of the first connecting piece;

the first end of the second connecting piece is connected with the other end of the heat dissipation wing column, and the second threaded part is formed at the second end and the third end of the second connecting piece.

3. The fin group of claim 2, wherein the heat dissipating stud includes an inner tube and a housing, a mounting cavity penetrating the housing along a length direction of the housing is formed in the housing, the inner tube is embedded in the mounting cavity, one end of the inner tube is connected to the first end of the first connector, and the other end of the inner tube is connected to the first end of the second connector.

4. A fin group according to claim 3, wherein the inner tube is expanded with the outer shell, both ends of the inner tube protrude from the installation cavity, and both ends of the inner tube are respectively connected with the first connecting member and the second connecting member by hot melting.

5. A fin group according to claim 3, wherein both ends of the inner tube protrude from the mounting cavity by 3cm to 5cm, and the length of the first end of the first connector and the length of the first end of the second connector are adapted to 3cm to 5cm with the length of the inner tube protruding from the mounting cavity.

6. The fin group of claim 5, wherein the first end of the first connector and the first end of the second connector each have an outer diameter that is no greater than an inner diameter of the inner tube.

7. The heat sink assembly of claim 3 wherein said housing is made of aluminum material and said inner tube, said first connector, said second connector and said butt-joint member are all of a graphene polyethylene composite material.

8. A fin group according to claim 3, wherein the housing includes a main body portion having an hourglass shape in cross section, the mounting cavity being formed at a center position of the main body portion, and fin portions distributed on the main body portion and extending in a longitudinal direction of the main body portion.

9. The heat sink assembly of claim 2 further comprising a first plug member plugged into the second end of the first connector member or the second end of the second connector member of the first heat dissipating unit and a second plug member plugged into the third end of the first connector member or the third end of the second connector member of the last heat dissipating unit.

10. A heat dissipating system comprising a water inlet pipe, a water outlet pipe and a fin set according to any one of the preceding claims 1-9;

the water inlet pipe is communicated with the first heat radiating unit, and the water outlet pipe is communicated with the last heat radiating unit.