CN219628201U - Three-dimensional heat dissipation module - Google Patents

Abstract

A three-dimensional heat dissipation module comprises a temperature equalizing plate, two heat pipe groups, two heat dissipation fin groups and a fixing piece. One heat pipe group comprises a first L-shaped heat pipe. One end of the first L-shaped heat pipe is provided with a first closed end, and the other end of the first L-shaped heat pipe is inserted on the temperature equalizing plate, so that the space in the first L-shaped heat pipe is communicated with the inner cavity of the temperature equalizing plate. The other heat pipe group includes a second L-shaped heat pipe. One end of the second L-shaped heat pipe is provided with a second closed end, and the other end of the second L-shaped heat pipe is inserted into the temperature equalizing plate, so that the space in the second L-shaped heat pipe is communicated with the inner cavity, and the second closed end and the first closed end are opposite to each other. One of the heat dissipation fin groups contacts the top surface of the temperature equalizing plate and is penetrated by the first L-shaped heat pipe. The other heat dissipation fin group is penetrated by the second L-shaped heat pipe. The fixing piece fixes the two radiating fin groups. Therefore, the difficulty in assembling the fin group and the heat pipe is reduced, the convenience in assembling is improved, and the probability of damaging the fin group or the heat pipe during assembling is reduced.

Description

Three-dimensional heat dissipation module

Technical Field

The present utility model relates to a heat dissipation module, and more particularly to a three-dimensional heat dissipation module.

Background

The conventional heat dissipation module comprises a temperature equalizing plate, a heat pipe and a fin group. The temperature equalizing plate and the heat pipe are integrated into the same cavity, and the heat pipe penetrates through the fin group to dissipate heat energy through the fin group, so that the overall heat dissipation performance is enhanced.

However, since the temperature equalizing plate and the heat pipe are integrated, if the stretching direction of the heat pipe is not considered, the fin group is not easy to assemble, the difficulty of assembling is increased, the convenience of assembling the fin group is reduced, and even the fin group or the heat pipe is damaged when the fin group or the heat pipe is assembled.

Thus, how to develop a solution to refine the above direction is an important issue that the related industry is not satisfied at present.

Disclosure of Invention

The present utility model provides a three-dimensional heat dissipation module for solving the problems described in the prior art.

According to an embodiment of the utility model, the three-dimensional heat dissipation module comprises a temperature equalizing plate, a first heat pipe group, a second heat pipe group, a first heat dissipation fin group, a second heat dissipation fin group and at least one fixing piece. The temperature equalizing plate is provided with an inner chamber. The first heat pipe group comprises at least one first L-shaped heat pipe. One end of the first L-shaped heat pipe is provided with a first closed end, and the other end of the first L-shaped heat pipe is inserted on the temperature equalizing plate, so that the first pipe inner space of the first L-shaped heat pipe is communicated with the inner cavity. The second heat pipe group comprises at least one second L-shaped heat pipe. One end of the second L-shaped heat pipe is provided with a second closed end, and the other end of the second L-shaped heat pipe is inserted into the temperature equalizing plate, so that the second pipe inner space of the second L-shaped heat pipe is communicated with the inner cavity, and the second closed end and the first closed end are opposite to each other. The first heat dissipation fin group contacts the temperature equalizing plate and is penetrated by the first L-shaped heat pipe. The second heat dissipation fin group is penetrated by the second L-shaped heat pipe. The fixing piece is used for fixing the first radiating fin group and the second radiating fin group.

According to one or more embodiments of the present utility model, in the three-dimensional heat dissipation module, the first heat dissipation fin set includes a plurality of first fins, and the first fins are parallel to each other and are spaced apart from each other. The first L-shaped heat pipe comprises a first section, a second section and a first bent arc section, the first bent arc section is connected with the first section and the second section, the first section is connected with the top surface of the temperature equalizing plate, the second section penetrates through the first fins, the first closed end is positioned on the second section, and the first closed end is exposed from one side of the first radiating fin group, which is opposite to the second radiating fin group.

According to one or more embodiments of the present utility model, in the three-dimensional heat dissipation module, the second heat dissipation fin set includes a plurality of second fins, and the second fins are parallel to each other and are spaced apart from each other. The second L-shaped heat pipe comprises a third section, a fourth section and a second curved section. The second curved section is connected with the third section and the fourth section, the third section is connected with the top surface of the temperature equalizing plate, the fourth section penetrates through the second fins, the second closed end is positioned on the fourth section, and the second closed end is exposed from one side of the second radiating fin group opposite to the first radiating fin group. The second section of the first L-shaped heat pipe and the fourth section of the second L-shaped heat pipe extend back to back in opposite directions.

According to one or more embodiments of the present utility model, the three-dimensional heat dissipation module further includes at least one guide block. The guide block is positioned on the bottom surface of the temperature equalizing plate and used for contacting a heat source. The other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe are inserted into the top surface of the temperature equalizing plate, a spacing area is arranged between the other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe, orthographic projection of the spacing area to the bottom surface of the temperature equalizing plate is separated from the guide block, and the guide block and the first heat radiation fin group are overlapped with each other.

According to one or more embodiments of the present utility model, in the above three-dimensional heat dissipation module, the temperature equalization plate further includes at least one first connector and at least one second connector, and the first connector and the second connector are respectively located on the top surface of the temperature equalization plate and are connected to the inner chamber. The other end of the first L-shaped heat pipe further comprises a third joint, and the third joint is connected with the first joint. The other end of the second L-shaped heat pipe further comprises a fourth joint, and the fourth joint is connected with the second joint.

According to one or more embodiments of the present utility model, in the above three-dimensional heat dissipation module, the third joint is sleeved and surrounds the first joint, so that an end surface of the third joint directly contacts the top surface of the temperature equalization plate, and the space in the first tube is communicated with the inner chamber through the channel of the first joint. The fourth joint is sleeved and surrounds the second joint, so that the end face of the fourth joint is in direct contact with the top face of the temperature equalization plate, and the second pipe inner space is communicated with the inner cavity through the channel of the second joint.

According to one or more embodiments of the present utility model, in the above three-dimensional heat dissipation module, the first connector is sleeved and surrounds the third connector, so that an end surface of the third connector is located in the temperature equalizing plate, and the space in the first tube is communicated with the inner chamber. The second joint is sleeved and surrounds the fourth joint, so that the end face of the fourth joint is positioned in the temperature equalizing plate, and the inner cavity is communicated with the second pipe inner space.

According to one or more embodiments of the present utility model, the three-dimensional heat dissipation module further includes at least one first soldering portion and at least one second soldering portion. The first weld integrates the first L-shaped heat pipe with each Wen Banjie. The second welding part is connected with the second L-shaped heat pipe and the temperature equalizing plate and is used for integrating the second L-shaped heat pipe and the temperature equalizing plate Wen Banjie.

According to one or more embodiments of the present utility model, the three-dimensional heat dissipation module further comprises a working fluid. The working fluid is filled in the first pipe inner space, the second pipe inner space and the inner cavity. The first L-shaped heat pipe is provided with a first concave-convex structure on a first inner wall surrounding the first pipe inner space, the second L-shaped heat pipe is provided with a second concave-convex structure on a second inner wall surrounding the second pipe inner space, and the first concave-convex structure and the second concave-convex structure are used for guiding the flow of the working fluid.

According to one or more embodiments of the present utility model, in the above three-dimensional heat dissipation module, the temperature equalizing plate includes a capillary layer, and the capillary layer is located on an inner wall surface of the inner chamber. The first L-shaped heat pipe comprises a first capillary structure, wherein the first capillary structure is positioned in the space in the first pipe, stretches into the inner cavity and is connected with the capillary layer to guide the flow of the working fluid. The second L-shaped heat pipe comprises a second capillary structure. The second capillary structure is positioned in the second pipe inner space, stretches into the inner cavity and is connected with the capillary layer to guide the flow of the working fluid.

Therefore, through the framework, the three-dimensional heat radiation module can reduce the difficulty in assembling the fin group and the heat pipe and improve the convenience in assembling, thereby reducing the probability of damaging the fin group or the heat pipe during assembling.

The above description is merely illustrative of the problems to be solved, the technical means to solve the problems, the efficacy of the utility model, etc., and the specific details of the utility model are set forth in the following description and related drawings.

Drawings

The above and other objects, features, advantages and embodiments of the present utility model will become more apparent by reading the following description of the accompanying drawings in which:

fig. 1 is a perspective view of a three-dimensional heat dissipation module according to an embodiment of the utility model;

FIG. 2 is an exploded view of the solid heat dissipation module of FIG. 1;

fig. 3 is a cross-sectional view taken along line AA of fig. 1;

fig. 4 is a partial enlarged view of the region M of fig. 3;

FIG. 5 is a perspective view of the solid heat dissipation module of FIG. 1 from another perspective; and

fig. 6 is a partial cross-sectional view of a three-dimensional heat dissipation module according to an embodiment of the utility model.

Wherein reference numerals are as follows:

10: three-dimensional heat dissipation module

100: uniform temperature plate

101: top surface

102: bottom surface

110: inner chamber

111: inner wall surface

120: cover body

130: shell body

140: first joint

141: channel

150: second joint

151: channel

160: capillary layer

170: guide block

180: bracket

200: first heat pipe group

210: first L-shaped heat pipe

211: first tube inner space

212: a first inner wall

213: first concave-convex structure

220: first capillary structure

230: first section

240: second section

250: first curved section

260: a first closed end

270. 280: third joint

271: channel

281: conical space

300: second heat pipe group

310: second L-shaped heat pipe

311: second tube inner space

312: a second inner wall

313: second concave-convex structure

320: second capillary structure

330: third section

340: fourth stage

350: second curved section

360: a second closed end

370. 380: fourth joint

371: channel

381: conical space

400: first radiating fin group

410: first fin

411: first air gap

412: first through hole

500: second radiating fin group

510: second fin

511: second air gap

512: second through hole

600: fixing piece

700. 710: first welding part

800. 810: second welding part

AA: line segment

C1, C2, C3, C4: caliber of

D1: first extending direction

D2: second direction of extension

G: spacer region

H1, H2: height of (1)

M: region(s)

P1, P2: orthographic projection

V: in the vertical direction

T: in the horizontal direction

Detailed Description

In the following description, numerous practical details are set forth to provide a thorough understanding of embodiments of the present utility model, as shown in the drawings. However, it will be understood by those skilled in the art that these practical details are not necessary in some embodiments of the present utility model and are not, therefore, to be taken as limiting the present utility model. In addition, for the sake of simplicity of the drawing, some conventional structures and elements are shown in the drawings in a simplified schematic manner. In addition, the dimensions of the various elements in the drawings are not drawn to scale for the convenience of the reader.

Fig. 1 is a perspective view of a three-dimensional heat dissipation module 10 according to an embodiment of the utility model. Fig. 2 is an exploded view of the three-dimensional heat dissipation module 10 of fig. 1. As shown in fig. 1 to 2, the three-dimensional heat dissipation module 10 includes a temperature equalizing plate 100, a first heat pipe group 200, a second heat pipe group 300, a first heat dissipation fin group 400, a second heat dissipation fin group 500 and two fixing members 600. The isopipe 100 comprises a top surface 101 and a bottom surface 102 opposite one another. The first heat pipe group 200 includes one or more first L-shaped heat pipes 210. These first L-shaped heat pipes 210 are spaced apart from each other side by side. One end of each first L-shaped heat pipe 210 has a first closed end 260 spaced apart from the temperature equalizing plate 100, and the other end is inserted into the top surface 101 of the temperature equalizing plate 100. The second heat pipe group 300 includes one or more second L-shaped heat pipes 310. These second L-shaped heat pipes 310 are spaced apart from each other side by side. One end of each second L-shaped heat pipe 310 has a second closed end 360 spaced apart from the temperature equalizing plate 100, and the other end is inserted into the top surface 101 of the temperature equalizing plate 100. The second closed end 360 and the first closed end 260 face away from each other. The first fin group 400 is located on the top surface 101 of the temperature equalizing plate 100 and contacts the top surface 101 of the temperature equalizing plate 100, that is, the first fin group 400 can overlap with the top surface 101 of the temperature equalizing plate 100 along a vertical direction V.

The second heat sink fin set 500 is located beside the temperature equalizing plate 100 and does not contact the top surface 101 of the temperature equalizing plate 100, that is, the second heat sink fin set 500 is located at one side of the first heat sink fin set 400 and cannot be overlapped on the top surface 101 of the temperature equalizing plate 100 along the vertical direction V. The height H1 of the first fin group 400 is greater than the height H2 of the second fin group 500, however, the present utility model is not limited thereto. The first heat pipes 210 penetrate the first heat fin sets 400, and the second heat pipes 310 penetrate the second heat fin sets 500. The fixing members 600 are disposed apart from each other, and each fixing member 600 is located on a surface of the first fin group 400 and the second fin group 500 opposite to the temperature equalizing plate 100, and fixes the first fin group 400 and the second fin group 500 together. Each fastener 600 is, for example, a fastener.

More specifically, the first heat dissipation fin set 400 includes a plurality of first fins 410, where the first fins 410 are parallel to each other and spaced apart from each other, and a first air gap 411 is formed between the first fins 410, and one surface of the first fins 410 opposite to the fixing member 600 directly contacts the top surface 101 of the temperature uniformity plate 100. The second heat dissipation fin set 500 includes a plurality of second fins 510, wherein the second fins 510 are parallel to each other and spaced apart from each other, and a second air gap 511 is formed between the second fins 510. In the present embodiment, the first fins 410 are sequentially aligned in a horizontal direction T, and the second fins 510 are sequentially aligned in the horizontal direction T, however, the present utility model is not limited thereto.

Each of the first L-shaped heat pipes 210 includes a first segment 230, a second segment 240 and a first curved segment 250, the first curved segment 250 connects the first segment 230 and the second segment 240, the first segment 230 connects the top surface 101 of the temperature equalizing plate 100, and the second segment 240 passes through the first through holes 412 of the first fins 410. In the present embodiment, the second segment 240 and the first curved segment 250 sequentially extend into the first fins 410, however, the present utility model is not limited thereto. The first closed end 260 is located at the end of the second section 240 and is exposed from a side of the first fin set 400 opposite to the second fin set 500. In the present embodiment, the first section 230 of each first L-shaped heat pipe 210 is substantially perpendicular to the second section 240, and the first section 230, the second section 240 and the first curved section 250 of each first L-shaped heat pipe 210 are integrally formed, however, the present utility model is not limited thereto.

Each of the second L-shaped heat pipes 310 includes a third section 330, a fourth section 340 and a second curved section 350, the second curved section 350 connects the third section 330 and the fourth section 340, the third section 330 connects the top surface 101 of the temperature equalizing plate 100, and the fourth section 340 passes through the second through holes 512 of the second fins 510. The second closed end 360 is located at the end of the fourth segment 340 and is exposed from a side of the second fin set 500 opposite to the first fin set 400. In the present embodiment, the third section 330 of each second L-shaped heat pipe 310 is substantially perpendicular to the fourth section 340, and the third section 330, the fourth section 340 and the second curved section 350 of each second L-shaped heat pipe 310 are integrally formed, however, the present utility model is not limited thereto.

The second section 240 of the first L-shaped heat pipe 210 has a first extending direction D1 extending outward from the first curved section 250, the fourth section 340 of the second L-shaped heat pipe 310 has a second extending direction D2 extending outward from the second curved section 350, and the second extending direction D2 and the first extending direction D1 are opposite to each other. Thus, since the second section 240 of the first L-shaped heat pipe 210 and the fourth section 340 of the second L-shaped heat pipe 310 are protruded opposite to each other, the first fin group 400 and the second fin group 500 can be assembled to the first heat pipe group 200 and the second heat pipe group 300 in a direction approaching each other, so that the assembling convenience is improved.

Fig. 3 is a cross-sectional view taken along line AA of fig. 1. Fig. 4 is a partial enlarged view of the region M of fig. 3. As shown in fig. 3 and 4, in the present embodiment, the temperature uniformity plate 100 further has an inner chamber 110. The first L-shaped heat pipe 210 and the second L-shaped heat pipe 310 are both inserted on the top surface 101 of the temperature equalizing plate 100 such that the first pipe inner space 211 of the first L-shaped heat pipe 210 and the inner chamber 110 are connected to each other, and the second pipe inner space 311 of the second L-shaped heat pipe 310 and the inner chamber 110 are connected to each other. Each of the first L-shaped heat pipes 210 is integrated with the temperature equalizing plate 100 by the first welded portion 700. Each of the second L-shaped heat pipes 310 is integrated with the temperature equalizing plate 100 by the second welded portion 800.

More specifically, the temperature uniformity plate 100 includes a cover 120 and a housing 130. The housing 130 and the cover 120 are sealed to each other, and the inner chamber 110 is formed between the housing 130 and the cover 120. In addition, the temperature uniformity plate 100 further includes a plurality of first connectors 140 and a plurality of second connectors 150. The first connectors 140 and the second connectors 150 are respectively protruded on the top surface 101 of the temperature equalization plate 100, and the first connectors 140 and the second connectors 150 are respectively connected with the inner chamber 110. The first section 230 of each first L-shaped heat pipe 210 further has a third joint 270 for engaging the first joint 140. The third section 330 of each second L-shaped heat pipe 310 further has a fourth joint 370 for engaging the second joint 150.

In the present embodiment, when the third joint 270 of each of the first L-shaped heat pipes 210 is inserted into the channel 141 of one of the first joints 140 of the temperature equalization plate 100, the first joint 140 of the temperature equalization plate 100 is sleeved around the third joint 270, such that the end surface of the third joint 270 is located in the temperature equalization plate 100 (e.g. located in the channel 141 of the first joint 140), and the first pipe space 211 is connected to the inner chamber 110 through the channel 271 of the third joint 270. Next, the first L-shaped heat pipe 210 is fixedly combined with the first joint 140 by the first welding part 700 such that the first welding part 700 is positioned on the first joint 140 and surrounds the first L-shaped heat pipe 210.

Similarly, when the fourth joint 370 of each of the second L-shaped heat pipes 310 is inserted into the channel 151 of one of the second joints 150 of the temperature equalizing plate 100, the second joint 150 is sleeved around the fourth joint 370 such that the end face of the fourth joint 370 is positioned in the temperature equalizing plate 100 (e.g., in the channel 151 of the second joint 150), and the second in-pipe space 311 is communicated with the inner chamber 110 through the channel 371 of the fourth joint 370. Next, the second L-shaped heat pipe 310 is fixedly combined with the second joint 150 by the second welding part 800 such that the second welding part 800 is located on the second joint 150 and surrounds the second L-shaped heat pipe 310.

In addition, the temperature equalization plate 100 further has a working fluid (not shown) therein. The working fluid is filled in the first tube internal space 211, the second tube internal space 311, and the inner chamber 110. The first L-shaped heat pipe 210 has a first concave-convex structure 213 on a first inner wall 212 surrounding the first pipe inner space 211, and the second L-shaped heat pipe 310 has a second concave-convex structure 313 on a second inner wall 312 surrounding the second pipe inner space 311, and the first concave-convex structure 213 and the second concave-convex structure 313 are used for guiding the flow of the working fluid.

In addition, the temperature uniformity plate 100 includes a capillary layer 160, and the capillary layer 160 is located on the inner wall 111 of the inner chamber 110. For example, the capillary layer 160 is located on a lower surface of the housing 130 facing the inner chamber 110, however, it is also possible in other embodiments to locate the capillary layer 160 on an upper surface of the cover 120 facing the inner chamber 110.

The first L-shaped heat pipe 210 includes a first capillary structure 220, wherein the first capillary structure 220 is disposed in the first pipe space 211, extends into the inner chamber 110, and is connected to the capillary layer 160 for guiding the flow of the working fluid. In this embodiment, the first capillary structure 220 is in a sheet or strip shape, and a part of the first capillary structure is fixedly attached to the first inner wall 212 of the first tube space 211, another part of the first capillary structure is suspended in the first tube space 211 or is non-fixedly attached to the first inner wall 212 of the first tube space 211, and another part of the first capillary structure extends into the inner chamber 110 to connect the capillary layer 160.

The second L-shaped heat pipe 310 includes a second capillary structure 320. The second capillary structure 320 is located in the second tube space 311, extends into the inner chamber 110, and is connected to the capillary layer 160 for guiding the flow of the working fluid. In this embodiment, the second capillary structure 320 is in a shape of a sheet or a strip, a part of which is fixedly attached to the second inner wall 312 of the second tube space 311, another part of which falls in the second tube space 311 or is non-fixedly attached to the second inner wall 312 of the second tube space 311, and another part of which extends into the inner chamber 110 to connect the capillary layer 160.

Fig. 5 is a perspective view of the three-dimensional heat dissipation module 10 of fig. 1 from another perspective. As shown in fig. 2 and fig. 5, in the present embodiment, the three-dimensional heat dissipation module 10 further includes a guiding block 170. The connection block 170 is located on the bottom surface 102 of the temperature uniformity plate 100, and is used for contacting a heat source (e.g. electronic components, not shown). More specifically, the solid state heat dissipation module 10 is placed on a circuit board (not shown) of a heat source through one or more brackets 180. The orthographic projection P1 of the first fin group 400 to the bottom surface 102 of the temperature equalizing plate 100 along the vertical direction V and the guide block 170 overlap each other. The first section 230 of the first L-shaped heat pipe 210 is separated from the third section 330 of the second L-shaped heat pipe 310 by a gap G. The orthographic projection P2 of the spacer G onto the bottom surface 102 of the temperature uniformity plate 100 and the guide block 170 are separated from each other, that is, the guide block 170 and the spacer G do not overlap each other.

Therefore, the heat energy of the heat source can be more effectively taken away by the first heat dissipation fin set 400, because the heat dissipation efficiency of the first heat dissipation fin set 400 in the region of the temperature equalization plate 100 is greater than the heat dissipation efficiency of the spacer G on the temperature equalization plate 100, and the heat dissipation efficiency of the first heat dissipation fin set 400 in the region of the temperature equalization plate 100 is opposite to the guide block 170.

Fig. 6 is a partial cross-sectional view of a three-dimensional heat dissipation module according to an embodiment of the utility model. The three-dimensional heat dissipation module of fig. 6 is substantially the same as the three-dimensional heat dissipation module described above, in which the third joint 280 is funnel-shaped, and the third joint 280 gradually expands outwards towards the direction of the temperature equalization plate 100, such that the third joint 280 surrounds a conical space 281, and the maximum caliber (reference C1) of the conical space 281 is greater than the maximum caliber (reference C2) of the first pipe space 211. Similarly, the fourth joint 380 is funnel-shaped, and the fourth joint 380 gradually expands outwards towards the direction of the temperature equalization plate 100, such that the fourth joint 380 surrounds a conical space 381, and the maximum caliber (reference C3) of the conical space 381 is larger than the maximum caliber (reference C4) of the second pipe inner space 311.

Therefore, when each of the first joints 140 of the temperature equalization plate 100 is inserted into the third joint 280, the third joint 280 is sleeved around the first joint 140 such that the end surface of the third joint 280 directly contacts the top surface 101 of the temperature equalization plate 100 and the first pipe space 211 is communicated with the inner chamber 110 through the channel 141 of the first joint 140. Next, the third joint 280 is fixedly combined with the first joint 140 through the first welding part 710, so that a part of the first welding part 710 surrounds the first joint 140 and is located on the top surface 101 of the cover 120, and the other part is filled in the space among the first joint 140, the third joint 280 and the temperature equalization plate 100 in a sealing manner.

When each second joint 150 of the temperature equalization plate 100 is inserted into the fourth joint 380, the fourth joint 380 is sleeved around the second joint 150 such that the end surface of the fourth joint 380 directly contacts the top surface 101 of the temperature equalization plate 100 and the second in-pipe space 311 is communicated with the inner chamber 110 through the channel 151 of the second joint 150. Next, the fourth joint 380 and the second joint 150 are fixedly combined into a whole through the second welding part 810, so that a part of the second welding part 810 surrounds the second joint 150 and is positioned on the top surface 101 of the cover 120, and the other part is filled in the space among the second joint 150, the fourth joint 380 and the temperature equalization plate 100 in a sealing way. However, the present utility model is not limited thereto.

Therefore, through the framework, the three-dimensional heat radiation module can reduce the difficulty in assembling the fin group and the heat pipe and improve the convenience in assembling, thereby reducing the probability of damaging the fin group or the heat pipe during assembling.

Finally, the embodiments disclosed above are not intended to limit the utility model, but one skilled in the art can make various modifications and adaptations without departing from the spirit and scope of the utility model. The scope of the utility model is therefore defined in the appended claims.

Claims (10)

1. A three-dimensional heat dissipation module, comprising:

a temperature equalizing plate having an inner chamber;

the first heat pipe group comprises at least one first L-shaped heat pipe, one end of the first L-shaped heat pipe is provided with a first closed end, and the other end of the first L-shaped heat pipe is inserted on the temperature equalizing plate, so that a first pipe inner space of the first L-shaped heat pipe is communicated with the inner cavity;

the second heat pipe group comprises at least one second L-shaped heat pipe, one end of the second L-shaped heat pipe is provided with a second closed end, and the other end of the second L-shaped heat pipe is inserted into the temperature equalizing plate, so that a second pipe inner space of the second L-shaped heat pipe is communicated with the inner chamber, and the second closed end and the first closed end are opposite to each other;

the first radiating fin group is contacted with the temperature equalizing plate and penetrated by the first L-shaped heat pipe;

a second heat radiation fin group penetrated by the second L-shaped heat pipe; and

at least one fixing piece for fixing the first radiating fin group and the second radiating fin group.

2. The three-dimensional heat dissipation module according to claim 1, wherein the first heat dissipation fin group comprises a plurality of first fins, and the plurality of first fins are parallel to each other and are spaced apart from each other; and

the first L-shaped heat pipe comprises a first section, a second section and a first bent arc section, wherein the first bent arc section is connected with the first section and the second section, the first section is connected with the top surface of the temperature equalizing plate, the second section penetrates through the plurality of first fins, the first closed end is positioned on the second section, and the first closed end is exposed from one side of the first radiating fin group relative to the second radiating fin group.

3. The three-dimensional heat dissipation module according to claim 2, wherein the second heat dissipation fin group comprises a plurality of second fins, and the second fins are parallel to each other and are spaced apart from each other; and

the second L-shaped heat pipe comprises a third section, a fourth section and a second curved section, the second curved section is connected with the third section and the fourth section, the third section is connected with the top surface of the temperature equalizing plate, the fourth section passes through the plurality of second fins, the second closed end is positioned on the fourth section and is exposed from one side of the second heat radiation fin group opposite to the first heat radiation fin group,

the second section of the first L-shaped heat pipe and the fourth section of the second L-shaped heat pipe extend back towards opposite directions.

4. The three-dimensional heat dissipation module as defined in claim 1, further comprising:

at least one guide block positioned on one bottom surface of the temperature equalizing plate for contacting a heat source,

the other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe are inserted into the top surface of the temperature equalizing plate, a spacing area is arranged between the other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe, orthographic projection of the spacing area to the bottom surface of the temperature equalizing plate is separated from the guide block, and the guide block and the first heat radiation fin group are overlapped with each other.

5. The three-dimensional heat dissipation module as defined in claim 1, wherein the temperature equalization plate further comprises at least one first connector and at least one second connector, wherein the first connector and the second connector are respectively positioned on a top surface of the temperature equalization plate and are communicated with the inner chamber;

the other end of the first L-shaped heat pipe further comprises a third joint, and the third joint is connected with the first joint; and

the other end of the second L-shaped heat pipe further comprises a fourth joint, and the fourth joint is connected with the second joint.

6. The three-dimensional heat dissipation module according to claim 5, wherein the third joint is sleeved around the first joint, such that an end surface of the third joint directly contacts the top surface of the temperature equalization plate, and the first tube inner space is communicated with the inner chamber through a channel of the first joint; and

the fourth joint is sleeved and connected around the second joint, so that the end face of the fourth joint directly contacts the top face of the temperature equalizing plate, and the second pipe inner space is communicated with the inner chamber through the channel of the second joint.

7. The three-dimensional heat dissipation module according to claim 5, wherein the first joint is sleeved and connected around the third joint, so that the end face of the third joint is located in the temperature equalization plate, and the space in the first pipe is communicated with the inner chamber; and

the second joint is sleeved and surrounds the fourth joint, so that the end face of the fourth joint is positioned in the temperature equalizing plate, and the inner cavity is communicated with the second pipe inner space.

8. The three-dimensional heat dissipation module as defined in claim 5, further comprising:

at least one first welding part for integrating the first L-shaped heat pipe and the uniform Wen Banjie; and

at least one second welding part connected to the second L-shaped heat pipe and the temperature equalizing plate for integrating the second L-shaped heat pipe and the temperature equalizing plate Wen Banjie.

9. The three-dimensional heat dissipation module as defined in claim 1, further comprising:

a working fluid filled in the first tube space, the second tube space and the inner chamber,

the first L-shaped heat pipe is provided with a first concave-convex structure on a first inner wall surrounding the first pipe inner space, the second L-shaped heat pipe is provided with a second concave-convex structure on a second inner wall surrounding the second pipe inner space, and the first concave-convex structure and the second concave-convex structure are used for guiding the flow of the working fluid.

10. The three-dimensional heat dissipation module as defined in claim 9, wherein the temperature equalization plate comprises a capillary layer located on an inner wall surface of the inner chamber;

the first L-shaped heat pipe comprises a first capillary structure, wherein the first capillary structure is positioned in the first pipe inner space, stretches into the inner cavity and is connected with the capillary layer to guide the flow of the working fluid; and

the second L-shaped heat pipe comprises a second capillary structure which is positioned in the second pipe inner space, extends into the inner cavity and is connected with the capillary layer to guide the flow of the working fluid.