TWM639450U - Three-dimensional heat dissipation module - Google Patents

Abstract

A three-dimensional heat dissipation device includes a vapor chamber, two heat pipe sets, two heat dissipation fin sets and a fixing member. One of the heat pipe sets includes a first L-shaped heat pipe. One end of the first L-shaped heat pipe has a first closed end, and the other end of the first L-shaped heat pipe inserts into an inner cavity of the vapor chamber, so that the inner space of the first L-shaped heat pipe is communicated with the inner cavity of the vapor chamber. The other heat pipe set includes a second L-shaped heat pipe. One end of the second L-shaped heat pipe has a second closed end, and the other end of the second L-shaped heat pipe inserts into the vapor chamber, so that the inner space of the second L-shaped heat pipe is communicated with the inner cavity. The second closed end and the first closed end are faced away from each other. One of the heat dissipation fin sets contacts the top surface of the vapor chamber, and is penetrated by the first L-shaped heat pipe. The other heat dissipation fin set is penetrated by the second L-shaped heat pipe. The fixing member fixes the heat dissipation fin sets.

Description

Three-dimensional cooling module

This creation is about a heat dissipation module, especially a three-dimensional heat dissipation module.

Conventional cooling modules include vapor chambers, heat pipes, and fin sets. The vapor chamber and the heat pipe are integrated into the same cavity, and the heat pipe is passed through the fin group to dissipate the heat energy through the fin group, thereby enhancing the overall heat dissipation performance.

However, since the vapor chamber and the heat pipe have been integrated, if the extension direction of the heat pipe is not considered, it will be difficult to assemble the fin group, which will increase the difficulty of assembly and reduce the convenience of assembling the fin group. Chipset or heat pipe damage.

In this way, how to develop a solution to improve the above-mentioned direction of efforts is really an important issue that the relevant industry should not delay at present.

This creation proposes a three-dimensional heat dissipation module to solve the problems described in the prior art.

According to an embodiment of the present invention, the three-dimensional heat dissipation module includes a vapor chamber, 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 Fastener. The vapor chamber has an inner chamber. The first heat pipe group includes at least one first L-shaped heat pipe. One end of the first L-shaped heat pipe has a first closed end, and the other end of the first L-shaped heat pipe is inserted on the uniform temperature plate, so that the first inner space of the first L-shaped heat pipe is connected to the inner chamber. The second heat pipe group includes at least one second L-shaped heat pipe. One end of the second L-shaped heat pipe has a second closed end, and the other end is inserted on the uniform temperature plate, so that the second tube inner space of the second L-shaped heat pipe is connected to the inner chamber, and the second closed end is connected to the first closed end. The closed ends face away from each other. The first cooling fin group contacts the temperature chamber and is penetrated by the first L-shaped heat pipe. The second cooling fin group is penetrated by the second L-shaped heat pipe. The fixing part fixes the first cooling fin group and the second cooling fin group.

According to one or more embodiments of the present invention, in the above-mentioned three-dimensional heat dissipation module, the first heat dissipation fin group includes a plurality of first fins, and these first fins are parallel to each other and spaced apart. The first L-shaped heat pipe includes a first section, a second section and a first curved section, the first curved section connects the first section and the second section, the first section connects the top surface of the vapor chamber, and the second The segment passes through the first fins, and the first closed end is located on the second segment and exposed from one side of the first cooling fin group opposite to the second cooling fin group.

According to one or more embodiments of the present invention, in the above-mentioned three-dimensional heat dissipation module, the second heat dissipation fin group includes a plurality of second fins, and these second fins are parallel to each other and arranged at intervals. The second L-shaped heat pipe includes a third segment, a fourth segment and a second arc segment. The second arc section connects the third section and the fourth section, the third section connects the top surface of the uniform temperature plate, the fourth section passes through these second fins, the second closed end is located on the fourth section, and from the second One side of the cooling fin group opposite to the first cooling fin group is exposed. The second section of the first L-shaped heat pipe and the fourth section of the second L-shaped heat pipe extend opposite to each other.

According to one or more embodiments of the present invention, the above-mentioned three-dimensional cooling module further includes at least one conductive block. The conductive block is located on the bottom surface of the uniform temperature plate, and is 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 on the top surface of the vapor chamber, and there is a gap between the other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe area, the orthographic projection of the spacer area to the bottom surface of the temperature chamber and the lead block are separated from each other, and the lead block and the first cooling fin group overlap each other.

According to one or more embodiments of the present invention, in the above three-dimensional heat dissipation module, the vapor chamber further includes at least one first joint and at least one second joint, and the first joint and the second joint are respectively located on the top of the vapor chamber face, and open the inner chamber. The other end of the first L-shaped heat pipe further includes a third joint connected to the first joint. The other end of the second L-shaped heat pipe further includes a fourth joint connected to the second joint.

According to one or more embodiments of the present invention, in the above-mentioned three-dimensional heat dissipation module, the third joint is socketed and surrounds the first joint, so that the end surface of the third joint directly contacts the top surface of the vapor chamber, and the space in the first tube The channel through the first joint is connected to the inner chamber. The fourth joint sleeves and surrounds the second joint, so that the end surface of the fourth joint directly touches the top surface of the vapor chamber, and the space in the second tube is connected to the inner chamber through the channel of the second joint.

According to one or more embodiments of the present invention, in the above-mentioned three-dimensional heat dissipation module, the first joint sleeves and surrounds the third joint, so that the end surface of the third joint is located in the vapor chamber, and the space in the first tube is in contact with the third joint. through the inner chamber. The second joint sleeves and surrounds the fourth joint, so that the end surface of the fourth joint is located in the vapor chamber, and the space in the second pipe is connected to the inner chamber.

According to one or more embodiments of the present invention, the above-mentioned three-dimensional heat dissipation module further includes at least one first welding portion and at least one second welding portion. The first welding part combines the first L-shaped heat pipe and the vapor chamber into one body. The second welding part connects the second L-shaped heat pipe and the vapor chamber to integrate the second L-shaped heat pipe and the vapor chamber.

According to one or more embodiments of the present invention, the above-mentioned three-dimensional cooling module further includes a working fluid. The working fluid is filled in the first tube inner space, the second tube inner space and the inner cavity. The first L-shaped heat pipe has a first concave-convex structure on the first inner wall surrounding the first tube inner space, and the second L-shaped heat pipe has a second concave-convex structure on the second inner wall surrounding the second tube inner space. The concave-convex structure and the second concave-convex structure are used to guide the flow of the working fluid.

According to one or more embodiments of the present invention, in the above-mentioned three-dimensional heat dissipation module, the vapor chamber includes a capillary layer, and the capillary layer is located on the inner wall of the inner chamber. The first L-shaped heat pipe includes a first capillary structure. The first capillary structure is located in the inner space of the first tube, extends 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 includes a second capillary structure. The second capillary structure is located in the inner space of the second tube, extends into the inner chamber, and is connected with the capillary layer to guide the flow of the working fluid.

In this way, through the above-mentioned structure, the three-dimensional heat dissipation module of the present invention can reduce the difficulty of assembling the fin set and the heat pipe, improve the convenience of assembly, thereby reducing the chance of damage to the fin set or heat pipe during assembly.

The above description is only used to explain the problem to be solved by this creation, the technical means to solve the problem, and its effects, etc. The specific details of this creation will be introduced in detail in the following implementation methods and related drawings.

The following will disclose the embodiment of the invention with diagrams, and for the sake of clarity, many practical details will be described together in the following description. However, those skilled in the art should understand that in some implementations of the present invention, these practical details are not necessary, and thus should not be used to limit the present invention. In addition, for the sake of simplifying the drawings, some well-known structures and components will be shown in a simple and schematic manner in the drawings. In addition, for the convenience of readers, the size of each element in the drawings is not drawn according to actual scale.

FIG. 1 is a perspective view of a three-dimensional heat dissipation module 10 according to an embodiment of the invention. FIG. 2 is an exploded view of the three-dimensional cooling module 10 in FIG. 1 . As shown in Figures 1 to 2, this three-dimensional heat dissipation module 10 includes a vapor chamber 100, a first heat pipe group 200, a second heat pipe group 300, a first heat dissipation fin group 400, a first Two cooling fin groups 500 and two fixing parts 600 . The vapor chamber 100 includes a top surface 101 and a bottom surface 102 opposite to each other. The first heat pipe set 200 includes one or more first L-shaped heat pipes 210 . The first L-shaped heat pipes 210 are spaced and arranged side by side. One end of each first L-shaped heat pipe 210 has a first closed end 260 spaced from the temperature chamber 100 , and the other end is inserted on the top surface 101 of the temperature chamber 100 . The second heat pipe set 300 includes one or more second L-shaped heat pipes 310 . The second L-shaped heat pipes 310 are spaced and arranged side by side. One end of each second L-shaped heat pipe 310 has a second closed end 360 spaced from the temperature chamber 100 , and the other end is inserted on the top surface 101 of the temperature chamber 100 . The second closed end 360 is opposite to the first closed end 260 . The first heat dissipation fin group 400 is located on the top surface 101 of the temperature chamber 100 and contacts the top surface 101 of the temperature chamber 100, that is, the first heat dissipation fin group 400 can meet the top of the temperature chamber 100 along a vertical direction V The faces 101 overlap each other.

The second cooling fin group 500 is located next to the vapor chamber 100 and does not touch the top surface 101 of the temperature chamber 100. That is, the second cooling fin group 500 is located on one side of the first cooling fin group 400 and cannot The vertical direction V overlaps to the top surface 101 of the temperature chamber 100 . The height H1 of the first cooling fin set 400 is greater than the height H2 of the second cooling fin set 500 , however, the invention is not limited thereto. The first heat dissipation fin set 400 is penetrated by the first L-shaped heat pipes 210 , and the second heat dissipation fin set 500 is penetrated by the second L-shaped heat pipes 310 . These fixing pieces 600 are arranged separately from each other, and each fixing piece 600 is located on one side of the first heat dissipation fin set 400 and the second heat dissipation fin set 500 opposite to the temperature chamber 100, and jointly fixes the first heat dissipation fin set 400 and the second heat dissipation fin set 400 and the second heat dissipation fin set 500. Two cooling fin groups 500 . Each fixing piece 600 is, for example, a fastener.

More specifically, the first cooling fin group 400 includes a plurality of first fins 410, these first fins 410 are parallel to each other and spaced apart, and a first air gap 411 is formed between the first fins 410, and these first fins 410 form a first air gap 411, and these first fins 410 A surface of a fin 410 opposite to the fixing member 600 directly contacts the top surface 101 of the temperature chamber 100 . The second cooling fin set 500 includes a plurality of second fins 510 , the second fins 510 are parallel to each other and spaced apart, and a second air gap 511 is formed between the second fins 510 . In this embodiment, the first fins 410 are arranged in sequence along a horizontal direction T, and the second fins 510 are arranged in sequence along the horizontal direction T, however, the invention is not limited thereto.

Each first L-shaped heat pipe 210 includes a first section 230, a second section 240 and a first curved section 250, the first curved section 250 connects the first section 230 and the second section 240, and the first section 230 is connected to the top surface 101 of the temperature chamber 100 , and the second section 240 passes through the first through holes 412 of the first fins 410 . In this embodiment, both the second segment 240 and the first curved segment 250 extend into the first fins 410 sequentially, however, the invention is not limited thereto. The first closed end 260 is located at the end of the second section 240 and exposed from a side of the first cooling fin set 400 opposite to the second cooling fin set 500 . In this embodiment, the first section 230 of each first L-shaped heat pipe 210 is approximately perpendicular to the second section 240, and the first section 230, the second section 240 of each first L-shaped heat pipe 210 are connected to the first curved arc Section 250 is integrally formed, however, the invention is not so limited.

Each second L-shaped heat pipe 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, and the third section 330 is connected to the top surface 101 of the temperature chamber 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 section 340 and exposed from a side of the second cooling fin set 500 opposite to the first cooling fin set 400 . In this embodiment, the third section 330 of each second L-shaped heat pipe 310 is approximately perpendicular to the fourth section 340, and the third section 330, the fourth section 340 and the second curved arc of each second L-shaped heat pipe 310 Section 350 is integrally formed, however, the invention is not so limited.

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, and the fourth section 340 of the second L-shaped heat pipe 310 has a first extending direction D1 extending outward from the second curved section 350. The second extending direction D2 extends outward, and the second extending direction D2 and the first extending direction D1 are opposite to each other. In this way, 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 protrude toward each other, the first cooling fin set 400 and the second cooling fin set 500 can face each other. The approaching direction is assembled to the first heat pipe group 200 and the second heat pipe group 300 to improve the convenience of assembly.

Figure 3 is a cross-sectional view of Figure 1 along line AA. Fig. 4 is a partially enlarged view of area M in Fig. 3 . As shown in FIG. 3 and FIG. 4 , in this embodiment, the chamber 110 is further provided inside the vapor chamber 100 . Both the first L-shaped heat pipe 210 and the second L-shaped heat pipe 310 are inserted on the top surface 101 of the vapor chamber 100, so that the first inner space 211 of the first L-shaped heat pipe 210 and the inner chamber 110 are connected to each other, And the second inner space 311 of the second L-shaped heat pipe 310 is in communication with the inner chamber 110 . Each first L-shaped heat pipe 210 is integrated with the temperature chamber 100 through the first welding portion 700 . Each second L-shaped heat pipe 310 is integrated with the temperature chamber 100 through the second welding portion 800 .

More specifically, the vapor chamber 100 includes a cover 120 and a casing 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 vapor chamber 100 further includes a plurality of first joints 140 and a plurality of second joints 150 . The first joints 140 and the second joints 150 protrude from the top surface 101 of the temperature chamber 100 respectively, and the first joints 140 and the second joints 150 are respectively connected to the inner chamber 110 . The first section 230 of each first L-shaped heat pipe 210 further has a third joint 270 for joining the first joint 140 . The third section 330 of each second L-shaped heat pipe 310 further has a fourth joint 370 for connecting the second joint 150 .

In this embodiment, when the third connector 270 of each first L-shaped heat pipe 210 is inserted into the channel 141 of one of the first connectors 140 of the chamber 100, the first connector 140 of the chamber 100 is socketed and surrounds The third joint 270 is such that the end face of the third joint 270 is located in the vapor chamber 100 (for example, in the passage 141 of the first joint 140), and the first pipe inner space 211 is connected through the passage 271 of the third joint 270 inner chamber 110 . Next, the first L-shaped heat pipe 210 is fixedly combined with the first joint 140 through the first welding portion 700 , so that the first welding portion 700 is located on the first joint 140 and surrounds the first L-shaped heat pipe 210 .

Similarly, when the fourth joint 370 of each second L-shaped heat pipe 310 is inserted into the channel 151 of one of the second joints 150 of the vapor chamber 100, the second joint 150 is socketed and surrounds the fourth joint 370, so that the fourth joint 370 The end surface of the joint 370 is located in the chamber 100 (for example, located in the channel 151 of the second joint 150 ), and the second tube inner space 311 is connected to the inner chamber 110 through the channel 371 of the fourth joint 370 . Next, the second L-shaped heat pipe 310 is fixedly integrated with the second joint 150 through the second welding portion 800 , so that the second welding portion 800 is located on the second joint 150 and surrounds the second L-shaped heat pipe 310 .

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

In addition, the vapor chamber 100 includes a capillary layer 160 located on the inner wall 111 of the inner chamber 110 . For example, the capillary layer 160 is located on the lower surface of the housing 130 facing the inner chamber 110 , however, in other embodiments, the capillary layer 160 may also be located on the upper surface of the cover 120 facing the inner chamber 110 .

The first L-shaped heat pipe 210 includes a first capillary structure 220 located in the first pipe inner space 211 , protruding into the inner chamber 110 and connected to the capillary layer 160 for guiding the flow of the working fluid. In this embodiment, more specifically, the first capillary structure 220 is in the form of a sheet or a strip, a part of which is fixedly attached to the first inner wall 212 of the first inner space 211 of the tube, and the other part hangs down on the first inner space 211 of the tube. Inner or non-fixed attached to the first inner wall 212 of the first tube inner space 211 , and a part protrudes into the inner chamber 110 to connect with 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 inner space 311 , protrudes into the inner chamber 110 , and is connected to the capillary layer 160 for guiding the flow of the working fluid. In this embodiment, more specifically, the second capillary structure 320 is in the shape of a sheet or a strip, a part of which is fixedly attached to the second inner wall 312 of the second inner space 311 of the tube, and the other part hangs down on the second inner space 311 of the tube. Inner or non-fixed attached to the second inner wall 312 of the second tube inner space 311 , and a part protrudes into the inner chamber 110 to connect with the capillary layer 160 .

FIG. 5 is a perspective view of the three-dimensional cooling module 10 in FIG. 1 viewed from another angle. As shown in FIG. 2 and FIG. 5 , in this embodiment, the above-mentioned three-dimensional cooling module 10 further includes a conductive block 170 . The conductive block 170 is located on the bottom surface 102 of the temperature chamber 100 for contacting a heat source (such as an electronic component, not shown in the figure). More specifically, the three-dimensional cooling module 10 is placed on the circuit board (not shown in the figure) of the heat source through one or more brackets 180 . The orthographic projection P1 of the first cooling fin set 400 along the vertical direction V to the bottom surface 102 of the temperature chamber 100 overlaps with the conductive block 170 . A gap G is separated between the first section 230 of the first L-shaped heat pipe 210 and the third section 330 of the second L-shaped heat pipe 310 . The orthographic projection P2 from the spacer G to the bottom surface 102 of the temperature chamber 100 is separated from the lead block 170 , that is, the lead block 170 and the spacer G do not overlap each other.

In this way, since the first heat dissipation fin group 400 is facing the conductive block 170 in the area of the chamber 100, and the heat dissipation efficiency of the first heat dissipation fin group 400 in the area of the chamber 100 is greater than that of the spacer G in the chamber Therefore, the heat energy of the heat source can be taken away by the first heat dissipation fin set 400 more effectively.

Fig. 6 is a partial cross-sectional view of a three-dimensional cooling module according to an embodiment of the invention. The three-dimensional cooling module in Figure 6 is roughly the same as the above-mentioned three-dimensional cooling module, the difference is that in this embodiment, the third joint 280 is funnel-shaped, and the third joint 280 gradually expands toward the direction of the vapor chamber 100 , so that the third joint 280 surrounds a conical space 281 , and the maximum diameter of the conical space 281 (refer to C1 ) is larger than the maximum diameter of the first inner tube space 211 (refer to C2 ). Similarly, the fourth joint 380 is funnel-shaped, and the fourth joint 380 gradually expands towards the direction of the vapor chamber 100, so that the fourth joint 380 surrounds a conical space 381. The maximum diameter of the conical space 381 (refer to C3 ) is greater than the maximum diameter of the second pipe inner space 311 (refer to C4).

Therefore, when each first joint 140 of the chamber 100 is inserted into the third joint 280, the third joint 280 is socketed and surrounds the first joint 140, so that the end surface of the third joint 280 directly touches the top surface of the chamber 100 101 , the first tube inner space 211 is connected to the inner chamber 110 through the channel 141 of the first joint 140 . Then, 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 body 120, and the other part is closed. The space between the first joint 140 , the third joint 280 and the vapor chamber 100 is completely filled.

When each second joint 150 of the chamber 100 is inserted into the fourth joint 380 , the fourth joint 380 is socketed and surrounds the second joint 150, so that the end surface of the fourth joint 380 directly contacts the top surface 101 of the chamber 100, The second tube inner space 311 is connected to the inner chamber 110 through the channel 151 of the second joint 150 . Then, the fourth joint 380 and the second joint 150 are fixedly combined into one body through the second welding part 810, so that a part of the second welding part 810 surrounds the second joint 150, and is located on the top surface 101 of the cover body 120, and the other part is closed. The space between the second joint 150 , the fourth joint 380 and the vapor chamber 100 is completely filled. However, the present work is not limited thereto.

In this way, through the above-mentioned structure, the three-dimensional heat dissipation module of the present invention can reduce the difficulty of assembling the fin set and the heat pipe, improve the convenience of assembly, thereby reducing the chance of damage to the fin set or heat pipe during assembly.

Finally, the embodiments disclosed above are not intended to limit this creation. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of this creation, and all of them can be protected in this creation. creation. Therefore, the scope of protection of this creation should be defined by the scope of the attached patent application.

10: Three-dimensional cooling module 100: vapor chamber 101: top surface 102: bottom surface 110: inner chamber 111: Inner wall surface 120: cover body 130: Shell 140: first connector 141: channel 150: Second connector 151: channel 160: capillary layer 170: lead block 180: Bracket 200: The first heat pipe group 210: The first L-shaped heat pipe 211: Space in the first tube 212: the first inner wall 213: The first concave-convex structure 220: The first capillary structure 230: first paragraph 240: second paragraph 250: The first arc segment 260: the first closed end 270, 280: the third connector 271: channel 281: Conical space 300: The second heat pipe group 310: The second L-shaped heat pipe 311: space in the second tube 312: second inner wall 313: the second concave-convex structure 320:Second capillary structure 330: third paragraph 340: Fourth Paragraph 350: the second arc segment 360: second closed end 370, 380: the fourth connector 371: channel 381: Conical space 400: The first cooling fin group 410: first fin 411: The first air gap 412: The first through hole 500: The second cooling fin group 510: second fin 511: second air gap 512: Second through hole 600: Fixing parts 700, 710: the first welding part 800, 810: the second welding part AA: line segment C1, C2, C3, C4: Caliber D1: first extension direction D2: Second extension direction G: Spacer H1, H2: Height M: area P1, P2: orthographic projection V: vertical direction T: horizontal direction

In order to make the above-mentioned and other purposes, features, advantages and embodiments of this creation more obvious and easy to understand, the description of the accompanying drawings is as follows: Figure 1 is a perspective view of a three-dimensional heat dissipation module in an embodiment of the invention; Figure 2 is an exploded view of the three-dimensional cooling module in Figure 1; Figure 3 is a cross-sectional view taken along line AA in Figure 1; Figure 4 is a partial enlarged view of area M in Figure 3; Fig. 5 is a perspective view of the three-dimensional heat dissipation module in Fig. 1 viewed from another angle; and Fig. 6 is a partial cross-sectional view of a three-dimensional cooling module according to an embodiment of the invention.

10: Three-dimensional cooling module

100: vapor chamber

101: top surface

200: The first heat pipe group

210: The first L-shaped heat pipe

300: The second heat pipe group

310: The second L-shaped heat pipe

360: second closed end

400: The first cooling fin group

410: first fin

411: The first air gap

500: The second cooling fin group

510: second fin

511: second air gap

600: Fixing parts

AA: line segment

D1: first extension direction

D2: Second extension direction

V: vertical direction

T: horizontal direction

Claims (10)

A three-dimensional cooling module, comprising: A vapor chamber having an inner chamber; A first heat pipe group, including at least one first L-shaped heat pipe, one end of the first L-shaped heat pipe has a first closed end, and the other end is inserted on the uniform temperature plate, so that the first L-shaped heat pipe a first tube inner space connected to the inner chamber; A second heat pipe group, including at least one second L-shaped heat pipe, one end of the second L-shaped heat pipe has a second closed end, and the other end is inserted on the uniform temperature plate, so that the second L-shaped heat pipe A second tube inner space is connected to the inner chamber, wherein the second closed end and the first closed end face away from each other; A first cooling fin group, contacting the vapor chamber and being penetrated by the first L-shaped heat pipe; A second heat dissipation fin group is penetrated by the second L-shaped heat pipe; and At least one fixing piece fixes the first cooling fin group and the second cooling fin group. The three-dimensional heat dissipation module as described in claim 1, wherein the first heat dissipation fin group includes a plurality of first fins, and the first fins are parallel to each other and spaced apart; and The first L-shaped heat pipe includes a first section, a second section and a first arc section, the first arc section connects the first section and the second section, and the first section connects the vapor chamber The top surface of the second section passes through the first fins, the first closed end is located on the second section, and is exposed from the side of the first heat dissipation fin group opposite to the second heat dissipation fin group . The three-dimensional heat dissipation module as described in claim 2, wherein the second heat dissipation fin group includes a plurality of second fins, and the second fins are parallel to each other and spaced apart; and The second L-shaped heat pipe includes a third section, a fourth section and a second arc section, the second arc section connects the third section and the fourth section, and the third section connects the chamber The top surface of the fourth section passes through the second fins, the second closed end is located on the fourth section, and is exposed from the side of the second heat dissipation fin group opposite to the first heat dissipation fin group , Wherein the second section of the first L-shaped heat pipe and the fourth section of the second L-shaped heat pipe extend opposite to each other in two opposite directions. The three-dimensional heat dissipation module as described in claim 1 further includes: at least one conductive block, located on a bottom surface of the vapor chamber, for contacting a heat source, Wherein the other end of the first L-shaped heat pipe and the other end of the second L-shaped heat pipe are inserted on the top surface of the chamber, and the other end of the first L-shaped heat pipe is connected to the second L-shaped heat pipe There is a spacer between the other ends of the heat pipe, the orthographic projection of the spacer to the bottom surface of the temperature chamber is separated from the lead block, and the lead block overlaps with the first cooling fin group. The three-dimensional heat dissipation module according to claim 1, wherein the vapor chamber further includes at least one first joint and at least one second joint, and the first joint and the second joint are respectively located on a top surface of the vapor chamber and connected to the inner chamber; The other end of the first L-shaped heat pipe further includes a third joint connected to the first joint; and The other end of the second L-shaped heat pipe further includes a fourth joint connected to the second joint. The three-dimensional heat dissipation module as described in claim 5, wherein the third joint is socketed and surrounds the first joint, so that the end surface of the third joint directly contacts the top surface of the chamber, and the space in the first tube a channel through the first joint communicates with the inner chamber; and The fourth joint sleeves and surrounds the second joint, so that the end surface of the fourth joint directly contacts the top surface of the chamber, and the second tube inner space is connected to the inner cavity through the channel of the second joint room. The three-dimensional heat dissipation module as described in claim 5, wherein the first joint is sleeved and surrounds the third joint, so that the end surface of the third joint is located in the chamber, and the space in the first tube is connected to the inner chamber; and The second joint sleeves and surrounds the fourth joint, so that the end surface of the fourth joint is located in the chamber, and the space inside the second tube is connected to the inner chamber. The three-dimensional heat dissipation module as described in claim 5 further includes: At least one first welding part, combining the first L-shaped heat pipe with the vapor chamber; and At least one second welding part connects the second L-shaped heat pipe and the temperature chamber, and is used for integrating the second L-shaped heat pipe and the temperature chamber. The three-dimensional heat dissipation module as described in claim 1 further includes: a working fluid filled in the first tube inner space, the second tube inner space and the inner chamber, Wherein the first L-shaped heat pipe has a first concave-convex structure on the first inner wall surrounding the first tube inner space, and the second L-shaped heat pipe has a second inner wall around the second tube inner space. The concave-convex structure, the first concave-convex structure and the second concave-convex structure are used to guide the flow of the working fluid. The three-dimensional heat dissipation module as described in claim 9, wherein the vapor chamber includes a capillary layer, and the capillary layer is located on the inner wall of the inner chamber; The first L-shaped heat pipe includes a first capillary structure, which is located in the inner space of the first tube, extends 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 includes a second capillary structure, which is located in the inner space of the second tube, extends into the inner cavity, and connects with the capillary layer to guide the flow of the working fluid.

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