Heat pipe assembly

Abstract

The utility model discloses a heat pipe assembly which comprises a first heat pipe and at least one second heat pipe. The first heat pipe is provided with an annular inner wall face, an annular outer wall face and at least one opening. A first cavity is defined by the annular inner wall face. And the annular outer wall surface is back to the annular inner wall surface. The at least one opening penetrates through the annular inner wall surface and the annular outer wall surface. The at least one second heat pipe is provided with a second cavity and a communication port. The communicating opening communicates with the second cavity. The at least one second heat pipe is arranged on the first heat pipe, and the second cavity of the at least one second heat pipe is communicated with the first cavity of the first heat pipe through the communication port and the at least one opening.

Description

[0001] This application claims the rights and priorities of the utility model patent application with the application number 202322450877.8 and the application title "Heat Pipe Assembly" filed on September 8, 2023. The full text of the said application is incorporated herein by reference. Technical Field

[0002] The present invention relates to a heat pipe assembly, particularly a heat pipe assembly with a composite double heat pipe. Background Art

[0003] Generally, electronic devices or machinery will generate high temperatures during operation. Therefore, manufacturers usually install heat pipes for heat dissipation. Heat pipes utilize the evaporation and condensation of the internal coolant to achieve the effect of rapid temperature equalization. Specifically, the liquid coolant in the heat pipe absorbs heat at the evaporation end, vaporizes due to the vapor pressure, and moves towards the condensation end. After the gaseous coolant releases heat and condenses into a liquid coolant at the condensation end, the liquid coolant returns to the evaporation end through the internal capillary structure, absorbs heat again and evaporates, thus conducting a cooling cycle.

[0004] There are various forms of heat pipes on the market for use in various heat dissipation modules. Generally, tower heat dissipation modules use U-shaped heat pipes. U-shaped heat pipes need to be formed by bending. However, U-shaped heat pipes are limited by the bending angle at their bending points, resulting in a limited heat exchange area of the U-shaped heat pipes, and thus insufficient heat dissipation efficiency. Therefore, how to improve the heat dissipation efficiency of U-shaped heat pipes is one of the problems that R & D personnel should solve. Summary of the Invention

[0005] The present invention aims to provide a heat pipe assembly to improve the heat dissipation efficiency of U-shaped heat pipes.

[0006] The heat pipe assembly disclosed in an embodiment of the present invention includes a first heat pipe and at least one second heat pipe. The first heat pipe has an annular inner wall surface, an annular outer wall surface, and at least one opening. The annular inner wall surface surrounds a first chamber. The annular outer wall surface faces away from the annular inner wall surface. At least one opening penetrates the annular inner wall surface and the annular outer wall surface. At least one second heat pipe has a second chamber and a communication port. The communication port communicates with the second chamber. At least one second heat pipe is disposed in the first heat pipe, and the second chamber of at least one second heat pipe is connected to the first chamber of the first heat pipe through the communication port and at least one opening.

[0007] According to the heat pipe assembly of the above embodiment, since a second heat pipe is added to the first heat pipe, the heat exchange area of the heat pipe assembly can be increased under the condition of limited width of the heat pipe assembly, thereby improving the heat dissipation efficiency of the heat pipe assembly.

[0008] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 FIG. 1 is a perspective view of a heat pipe assembly combined with fins according to a first embodiment of the present invention.

[0010] Figure 2 is Figure 1 exploded view of the heat pipe assembly of.

[0011] Figure 3 is Figure 1 bottom view of the second heat pipe of the heat pipe assembly of.

[0012] Figure 4 is Figure 1 cross-sectional view of the heat pipe assembly of.

[0013] Figure 5 FIG. 2 is an exploded view of a heat pipe assembly according to a second embodiment of the present invention.

[0014] Figure 6 is Figure 5 cross-sectional view of the heat pipe assembly of.

[0015] Figure 7 FIG. 3 is an exploded view of a heat pipe assembly according to a third embodiment of the present invention.

[0016] Figure 8 is Figure 7 cross-sectional view of the heat pipe assembly of.

[0017] Figure 9 FIG. 4 is an exploded view of a heat pipe assembly according to a fourth embodiment of the present invention.

[0018] Figure 10 is Figure 9 cross-sectional view of the heat pipe assembly of.

[0019] Figure 11 FIG. 5 is an exploded view of a heat pipe assembly according to a fifth embodiment of the present invention.

[0020] Figure 12 is Figure 11 cross-sectional view of the heat pipe assembly of.

[0021] Figure 13 FIG. 6 is an exploded view of a heat pipe assembly according to a sixth embodiment of the present invention.

[0022] Figure 14 is Figure 13 cross-sectional view of the heat pipe assembly of.

[0023] Figure 15 Exploded view diagram of the heat pipe assembly according to the seventh embodiment of the present invention.

[0024] Figure 16 Is Figure 15 Cross-sectional view diagram of the heat pipe assembly.

[0025] Figure 17 Exploded view diagram of the heat pipe assembly according to the eighth embodiment of the present invention.

[0026] Figure 18 Is Figure 17 Cross-sectional view diagram of the heat pipe assembly.

[0027] Figure 19 Exploded view diagram of the heat pipe assembly according to the ninth embodiment of the present invention.

[0028] Figure 20 Is Figure 19 Cross-sectional view diagram of the heat pipe assembly.

[0029] Figure 21 Bottom view diagram of the second heat pipe of the heat pipe assembly according to the tenth embodiment of the present invention.

[0030] Figure 22 Stereoscopic view diagram of the heat pipe assembly according to the eleventh embodiment of the present invention.

[0031] Figure 23 Stereoscopic view diagram of the heat pipe assembly according to the twelfth embodiment of the present invention.

[0032] Figure 24 Stereoscopic view diagram of the heat pipe assembly according to the thirteenth embodiment of the present new type.

[0033] Figure 25 Is Figure 24 Cross-sectional view diagram of the heat pipe assembly.

[0034] Figure 26 Stereoscopic view diagram of the heat pipe assembly according to the fourteenth embodiment of the present invention.

[0035] Figure 27 Exploded view diagram of the heat pipe assembly according to the fifteenth embodiment of the present invention.

[0036] Figure 28 Cross-sectional view diagram of the heat pipe assembly according to the sixteenth embodiment of the present invention.

[0037] Figure 29 Cross-sectional view diagram of the heat pipe assembly according to the seventeenth embodiment of the present invention.

[0038] Figure 30Exploded view of the heat pipe assembly according to the eighteenth embodiment of the present invention.

[0039] Figure 31 is Figure 30 Partial sectional view of the heat pipe assembly.

[0040] Figure 32 Partial sectional view of the heat pipe assembly according to the nineteenth embodiment of the present invention.

[0041] Figure 33 Partial sectional view of the heat pipe assembly according to the twentieth embodiment of the present invention.

[0042] Figure 34 Exploded view of the heat pipe assembly according to the twenty-first embodiment of the present invention.

[0043] Figure 35 Exploded view of the heat pipe assembly according to the twenty-second embodiment of the present invention.

[0044] Figure 36 Structural diagram of an embodiment at one end of the second heat pipe.

[0045] Figure 37 Structural diagram of another embodiment at one end of the second heat pipe.

[0046] Figure 38 Structural diagram of the heat pipe assembly according to the twenty-third embodiment of the present invention.

[0047] Figure 39 Structural diagram of the heat pipe assembly according to the twenty-fourth embodiment of the present invention.

[0048] Figure 40 Structural diagram of the heat pipe assembly according to the twenty-fifth embodiment of the present invention.

[0049] Wherein, reference numerals:

[0050] 10, 10A~10N: Heat pipe assembly

[0051] 11, 11A, 11D~11F, 11H, 11L, 11N, 11P: First heat pipe

[0052] 111, 111A, 111D, 111H, 111L, 111N: First heat conduction section

[0053] 111A1, 111D1: Depressed part

[0054] 111H1, 111N1: Bottom shell

[0055] 111H2, 111N2: Top shell

[0056] 112: Second heat conduction section

[0057] 1121: Bending section

[0058] 113: First annular inner wall surface

[0059] 114, 114A, 114D: First annular outer wall surface

[0060] 115, 115E, 115F: Opening

[0061] 116E, 116F: Flanging structure

[0062] 12, 12B~12H, 12J, 12K, 12M, 12N, 12P: Second heat pipe

[0063] 121, 121H, 121N: Flanging structure

[0064] 122: Second annular inner wall surface

[0065] 123: Second annular outer wall surface

[0066] 124, 124C, 124H: Connecting port

[0067] 125C: Tapered structure

[0068] 126: Reduced diameter part

[0069] 127: Enlarged diameter part

[0070] 13, 13N, 13P: First capillary structure

[0071] 14, 14I, 14N, 14P: Second capillary structure

[0072] 141: Crescent part

[0073] 15G: Connecting ring

[0074] 15G1: Narrow diameter ring part

[0075] 15G2: Wide diameter ring part

[0076] 16K: Third heat pipe

[0077] 17: Third capillary structure

[0078] 18: Fourth capillary structure

[0079] 20: Fin

[0080] 30: Solder

[0081] S1, S1N: First chamber

[0082] S2, S2N: Second chamber Detailed implementation manner

[0083] Please refer to Figures 1 to 3 。 Figure 1 It is a three-dimensional schematic diagram of the combination of the heat pipe assembly and the fin according to the first embodiment of the present invention. Figure 2 It is Figure 1 exploded schematic diagram of the heat pipe assembly of Figure 3 It is Figure 1 bottom view schematic diagram of the second heat pipe of the heat pipe assembly of

[0084] The heat pipe assembly 10 of this embodiment is, for example, used to be combined with the fin 20 for a tower heat dissipation module and used to be thermally coupled to a heat source (not shown). The so-called thermal coupling means thermal contact or connection through other heat-conducting media. The heat pipe assembly 10 includes a first heat pipe 11, a second heat pipe 12, a first capillary structure 13, and a second capillary structure 14. The first heat pipe 11 includes a first heat-conducting section 111 and two second heat-conducting sections 112. The first heat-conducting section 111 is, for example, a flat tube. The two second heat-conducting sections 112 are, for example, circular tubes, and are, for example, each connected to opposite ends of the first heat-conducting section 111 by a bending section 1121, and the two second heat-conducting sections 112 protrude in the same direction. That is to say, the first heat pipe 11 is, for example, U-shaped.

[0085] Please refer to together Figure 4 。 Figure 4 It is Figure 1 cross-sectional schematic diagram of the heat pipe assembly of

[0086] The second heat pipe 12 is, for example, a circular pipe and is disposed between the two second heat conduction sections 112 of the first heat pipe 11, and the distance between the second heat pipe 12 and the two second heat conduction sections 112 is, for example, the same. That is to say, the second heat pipe 12 is centrally disposed between the two second heat conduction sections 112. Specifically, the second heat pipe 12 has a flanging structure 121 at the communication port 124. The flanging structure 121 is, for example, annular, and the flanging structure 121 is stacked and, for example, directly welded to the first annular outer wall surface 114 of the first heat conduction section 111 of the first heat pipe 11 through a solder 30.

[0087] The second heat pipe 12 has a second annular inner wall surface 122, a second annular outer wall surface 123, and a communication port 124. The second annular inner wall surface 122 is located inside the second heat pipe 12 and encloses a second chamber S2. The second chamber S2 is, for example, used to accommodate a cooling fluid (not shown). The second annular outer wall surface 123 is located outside the second heat pipe 12. That is to say, the second annular outer wall surface 123 faces away from the second annular inner wall surface 122. The second annular inner wall surface 122 and the second annular outer wall surface 123 jointly enclose the communication port 124, and the communication port 124 communicates with the second chamber S2, and the second chamber S2 is connected to the first chamber S1 of the first heat pipe 11 through the communication port 124 and the opening 115.

[0088] The first capillary structure 13 and the second capillary structure 14 are, for example, powder sintered bodies. The first capillary structure 13 is located in the first chamber S1 of the first heat pipe 11. The second capillary structure 14 is located in the second chamber S2 of the second heat pipe 12 and is connected to the first capillary structure 13. The second capillary structure 14 includes two crescent portions 141. The two crescent portions 141 are symmetrically disposed in the second chamber S2. When the cooling fluid absorbs the heat of the heat source and evaporates, it can flow back to the heat source through the capillary structures 13 and 14, thereby achieving the effect of a cooling cycle.

[0089] Compared with the heat pipes generally used in tower cooling modules, the width is limited by the bending angles of the two bending sections of the first heat pipe, resulting in the heat exchange area of the heat pipe being limited and the heat dissipation efficiency of the heat pipe being insufficient. The heat pipe assembly 10 in this embodiment adds a second heat pipe 12 between the two first heat conduction sections 111 of the first heat pipe 11. In this way, the heat exchange area of the heat pipe assembly 10 can be increased under the condition that the width of the heat pipe assembly 10 is limited, thereby improving the heat dissipation efficiency of the heat pipe assembly 10.

[0090] In this embodiment, the two second heat conduction sections 112 of the first heat pipe 11 are circular pipes, but this is not limiting. In other embodiments, the two second heat conduction sections of the first heat pipe can also be flat pipes.

[0091] In this embodiment, the two second heat conduction segments 112 are each connected to opposite ends of the first heat conduction segment 111 by a bent segment 1121, but this is not limiting. In other embodiments, the two second heat conduction segments may each be connected to opposite ends of the first heat conduction segment by a right-angled segment.

[0092] In this embodiment, the first heat pipe 11 is U-shaped, but this is not limiting. In other embodiments, the first heat pipe may also be in other shapes, such as L-shaped.

[0093] In this embodiment, the second heat pipe 12 is at the same distance from the two second heat conduction segments 112 of the first heat pipe 11, so that the second heat pipe 12 is centrally disposed between the two second heat conduction segments 112, but this is not limiting. In other embodiments, the distances between the second heat pipe and the two second heat conduction segments of the first heat pipe may also be different, so that the second heat pipe is offset between the two second heat conduction segments.

[0094] In this embodiment, the folded edge structure 121 of the second heat pipe 12 is directly welded to the first annular outer wall surface 114 of the first heat conduction segment 111 of the first heat pipe 11 by solder 30, but this is not limiting. In other embodiments, the folded edge structure of the second heat pipe may also be fixed by laser welding first and then welded to the first annular outer wall surface of the first heat conduction segment of the first heat pipe by solder.

[0095] In this embodiment, the first capillary structure 13 is connected to the second capillary structure 14, but this is not limiting. In other embodiments, the first capillary structure and the second capillary structure may also be unconnected.

[0096] Please refer to Figure 5 and Figure 6 . Figure 5 is an exploded schematic view of a heat pipe assembly according to a second embodiment of the present invention. Figure 6 is Figure 5 a cross-sectional schematic view of the heat pipe assembly.

[0097] The heat pipe assembly 10A of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10A of this embodiment, the first heat conduction segment 111A of the first heat pipe 11A has a recessed portion 111A1. The recessed portion 111A1 is located on the first annular outer wall surface 114A and surrounds the opening 115. The folded edge structure 121 of the second heat pipe 12 at the communication port 124 is welded to the recessed portion 111A1, for example.

[0098] Please refer to Figure 7 and Figure 8 . Figure 7 is an exploded schematic view of a heat pipe assembly according to a third embodiment of the present invention. Figure 8 isFigure 7 Cross-sectional schematic view of the heat pipe assembly

[0099] The heat pipe assembly 10B of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10B of this embodiment, the second heat pipe 12B does not have a flanging structure and is partially inserted and, for example, welded to the opening 115 of the first heat pipe 11.

[0100] Please refer to Figure 9 and Figure 10 . Figure 9 Exploded schematic view of the heat pipe assembly according to the fourth embodiment of the present invention Figure 10 is Figure 9 Cross-sectional schematic view of the heat pipe assembly

[0101] The heat pipe assembly 10C of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10C of this embodiment, the second heat pipe 12C does not have a flanging structure, but has a tapered structure 125C at the communication port 124C. The second heat pipe 12C is partially inserted and, for example, welded to the opening 115 of the first heat pipe 11 so that the tapered structure 125C is located in the first chamber S1 of the first heat pipe 11.

[0102] Please refer to Figure 11 and Figure 12 . Figure 11 Exploded schematic view of the heat pipe assembly according to the fifth embodiment of the present invention Figure 12 is Figure 11 Cross-sectional schematic view of the heat pipe assembly

[0103] The heat pipe assembly 10D of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10D of this embodiment, the second heat pipe 12D does not have a flanging structure. The first heat conduction section 111D of the first heat pipe 11D has a recess 111D1. The recess 111D1 is located on the first annular outer wall surface 114D. The second heat pipe 12D is stacked and, for example, welded to the recess 111D1 of the first heat conduction section 111D of the first heat pipe 11D.

[0104] Please refer to Figure 13 and Figure 14 . Figure 13 Exploded schematic view of the heat pipe assembly according to the sixth embodiment of the present invention Figure 14 is Figure 13 Cross-sectional schematic view of the heat pipe assembly

[0105] The heat pipe assembly 10E of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10E of this embodiment, the second heat pipe 12E does not have a flanging structure, while the first heat pipe 11E has a flanging structure 116E at the opening 115E. A part of the second heat pipe 12E is inserted and, for example, welded to the flanging structure 116E of the first heat pipe 11E. That is to say, the flanging structure 116E of the first heat pipe 11E surrounds a part of the second heat pipe 12E.

[0106] Please refer to Figure 15 and Figure 16 . Figure 15 FIG. is an exploded view of the heat pipe assembly according to the seventh embodiment of the present invention. Figure 16 is Figure 15 a cross-sectional view of the heat pipe assembly.

[0107] The heat pipe assembly 10F of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10F of this embodiment, the second heat pipe 12F does not have a flanging structure, while the first heat pipe 11F has a flanging structure 116F at the opening 115F. A part of the second heat pipe 12F is sleeved and, for example, welded to the flanging structure 116F of the first heat pipe 11F. That is to say, a part of the second heat pipe 12F surrounds the flanging structure 116F of the first heat pipe 11F.

[0108] Please refer to Figure 17 and Figure 18 . Figure 17 FIG. is an exploded view of the heat pipe assembly according to the eighth embodiment of the present invention. Figure 18 is Figure 17 a cross-sectional view of the heat pipe assembly.

[0109] The heat pipe assembly 10 of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In this embodiment, the second heat pipe 12G of the heat pipe assembly 10G does not have a flanging structure, and the heat pipe assembly 10G may further include a connecting ring 15G. The connecting ring 15G includes a connected narrow-diameter ring portion 15G1 and a wide-diameter ring portion 15G2. The narrow-diameter ring portion 15G1 is inserted and, for example, welded to the opening 115 of the first heat pipe 11, and a part of the second heat pipe 12G is inserted and, for example, welded to the wide-diameter ring portion 15G2. That is to say, the second heat pipe 12G is connected to the first heat pipe 11 through the connecting ring 15G.

[0110] In this embodiment, the number of the first heat pipes 11 and the number of the connecting rings 15G are each only one, but this is not limiting. In other embodiments, the number of the first heat pipes and the number of the connecting rings may each be two or more, and the number of the connecting rings corresponds to the number of the first heat pipes. Please refer to Figure 19 and Figure 20 . Figure 19 is an exploded view of the heat pipe assembly according to the ninth embodiment of the present invention. Figure 20 is Figure 19 a cross-sectional view of the heat pipe assembly.

[0111] The heat pipe assembly 10H of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10H of this embodiment, the first heat conduction section 111H of the first heat pipe 11H includes a bottom shell 111H1 and a top shell 111H2. The bottom shell is welded to the two second heat conduction sections 112, for example. The top shell 111H2 is welded to the bottom shell 111H1, for example. The opening 115 is located in the top shell 111H2, and the first annular inner wall surface 113 extends from the bottom shell 111H1 to the top shell 111H2. The folded edge structure 121H of the second heat pipe 12H is stacked and welded to the first annular inner wall surface 113 of the top shell 111H2, for example.

[0112] In this embodiment, before the second heat pipe 12H is assembled to the first heat pipe 11H, the top shell 111H2 is not yet welded to the bottom shell 111H1, so the top shell 111H2 and the bottom shell 111H1 are separated. When the operator wants to assemble the second heat pipe 12H to the first heat pipe 11H, first, the second heat pipe 12H is passed through the opening 115 located in the top shell 111H2 from the end far away from the communication port 124H, and the folded edge structure 121H of the second heat pipe 12H is welded to the first annular inner wall surface 113 of the top shell 111H2, for example. Then, the top shell 111H2 provided with the second heat pipe 12H is welded to the bottom shell 111H1, for example. In this way, the assembly of the first heat pipe 11H and the second heat pipe 12H can be completed.

[0113] In the above embodiment, the second capillary structure 14 includes two crescent portions 141, but this is not limiting. In other embodiments, the second capillary structure may also be formed by a single structure of other shapes. Specifically, please refer to Figure 21 . Figure 21 is a bottom view of the second heat pipe of the heat pipe assembly according to the tenth embodiment of the present invention. The heat pipe assembly 10I of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10I of this embodiment, the second capillary structure 14I is formed by a single semi-circular structure.

[0114] In this embodiment, the second capillary structure 14I is composed of a single semi-circular structure, but is not limited thereto. In other embodiments, the second capillary structure may also be composed of multiple structures of other shapes.

[0115] Please refer to Figure 22 。 Figure 22 FIG. is a three-dimensional schematic diagram of a heat pipe assembly according to the eleventh embodiment of the present invention. The heat pipe assembly 10J of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In this embodiment, the heat pipe assembly 10J includes two second heat pipes 12J. The two second heat pipes 12J are disposed between the two second heat conduction sections 112 of the first heat pipe 11 and are, for example, welded to the first heat conduction section 111 of the first heat pipe 11.

[0116] In this embodiment, the number of the second heat pipes 12J is only one, but is not limited thereto. In other embodiments, the number of the second heat pipes may also be two or more.

[0117] Please refer to Figure 23 。 Figure 23 FIG. is a three-dimensional schematic diagram of a heat pipe assembly according to the twelfth embodiment of the present invention. The heat pipe assembly 10K of this embodiment is similar to the heat pipe assembly 10J of the eleventh embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In this embodiment, the heat pipe assembly 10K includes a plurality of third heat pipes 16K. These third heat pipes 16K are respectively disposed non-parallel to the first heat pipe 11 and the two second heat pipes 12K and do not interfere with each other. That is to say, the first heat pipe 11, the two second heat pipes 12K, and these third heat pipes 16K are arranged in a tree shape, for example.

[0118] In this embodiment, the heat pipe assembly 10K includes a plurality of third heat pipes 16K, and these third heat pipes 16K are disposed non-parallel to the first heat pipe 11 and the two second heat pipes 12K, so that the first heat pipe 11, the two second heat pipes 12K, and these third heat pipes 16K are arranged in a tree shape, for example, but is not limited thereto. In other embodiments, the heat pipe assembly may further include a plurality of fourth heat pipes. These fourth heat pipes are respectively disposed non-parallel to the first heat pipe, the two second heat pipes, and these third heat pipes and do not interfere with each other. That is to say, the first heat pipe, the two second heat pipes, these third heat pipes, and these fourth heat pipes are arranged in a denser tree shape, for example.

[0119] Please refer to Figure 24 and Figure 25 。 Figure 24 FIG. is a three-dimensional schematic diagram of a heat pipe assembly according to the thirteenth embodiment of the present invention. Figure 25 is Figure 24Cross-sectional schematic diagram of the heat pipe assembly.

[0120] The heat pipe assembly 10L of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10L of this embodiment, the first heat conduction section 111L of the first heat pipe 11L is, for example, a semi-flat tube. That is to say, the upper part of the first heat conduction section 111L is flattened to be planar, and the lower part of the first heat conduction section 111L is not flattened and is arc-shaped.

[0121] In this embodiment, the first heat conduction section 111L of the first heat pipe 11L is a semi-flat tube, but it is not limited thereto. In other embodiments, the first heat conduction section of the first heat pipe can also be, for example, a flat tube, a round tube, a rectangular tube, or an oval tube.

[0122] Please refer to Figure 26 。 Figure 26 Stereoscopic schematic diagram of the heat pipe assembly according to the fourteenth embodiment of the present invention. The heat pipe assembly 10M of this embodiment is similar to the heat pipe assembly 10 of the first embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In this embodiment, the second heat pipe 12M of the heat pipe assembly 10M is, for example, a flat tube.

[0123] In this embodiment, the second heat pipe 12M is a flat tube, but it is not limited thereto. In other embodiments, the second heat pipe can also be, for example, a semi-flat tube or a rectangular tube.

[0124] Please refer to Figure 27 and Figure 28 。 Figure 27 Exploded schematic diagram of the heat pipe assembly according to the fifteenth embodiment of the present invention. Figure 28 Cross-sectional schematic diagram of the heat pipe assembly according to the sixteenth embodiment of the present invention.

[0125] The heat pipe assembly 10N of this embodiment is similar to the heat pipe assembly 10H of the ninth embodiment. Therefore, the differences between this embodiment and the first embodiment will be described below, and the same parts will not be repeated. In the heat pipe assembly 10N of this embodiment, the folded edge structure 121N of the second heat pipe 12N is, for example, semi-circular. In addition, the first capillary structure 13N in the first chamber S1N of the first heat pipe 11N is not connected to the second capillary structure 14N in the second chamber S2N of the second heat pipe 12N.

[0126] In this embodiment, the folded edge structure 121N of the second heat pipe 12N is semi-circular, but it is not limited thereto. In other embodiments, the folded edge structure of the second heat pipe can also be, for example, one-third circular.

[0127] In this embodiment, the first capillary structure 13N is not connected to the second capillary structure 14N, but this is not a limitation. In other embodiments, the first capillary structure and the second capillary structure may also be connected by powder sintering or directly by welding.

[0128] Please refer to Figure 19 and Figure 27 , as Figure 19 and Figure 27 shown, the first heat pipe 11H and the first heat pipe 11N each include a bottom shell 111H1, 111N1 and a top shell 111H2, 111N2 respectively. During assembly, the second heat pipes 12H, 12N are first installed on the bottom shells 111H1, 111N1, and then the top shells 111H2, 111N2 are installed accordingly.

[0129] Please refer to Figure 29 . Figure 29 It is a cross-sectional schematic view of the heat pipe assembly according to the seventeenth embodiment of the present invention. As Figure 29 shown, in this embodiment, a third capillary structure 17 is provided on the first capillary structure 13P, and the crescent portion 141 of the second capillary structure 14P is connected to the first capillary structure 13P through the third capillary structure 17. When the cooling fluid absorbs the heat of the heat source and evaporates, it can flow back to the heat source through the capillary structures 13P, 17, 14P, thereby achieving the effect of cooling circulation.

[0130] Among them, in this embodiment, the capillary shape of the third capillary structure 17 can be circular, square, oval, triangular, and other irregular shapes, etc.

[0131] Among them, in this embodiment, the third capillary structure 17 is a structure such as a powder sintered body or a woven mesh.

[0132] Among them, in this embodiment, the third capillary structure 17 and the first capillary structure 13P are an integral structure. In another embodiment of the present invention, the third capillary structure 17 and the first capillary structure 13P may also be a split structure. According to the heat pipe assembly of the above embodiment, since a second heat pipe is added between the two first heat conduction sections of the first heat pipe, the heat exchange area of the heat pipe assembly can be increased when the width of the heat pipe assembly is limited, thereby improving the heat dissipation efficiency of the heat pipe assembly.

[0133] Please refer to Figures 30 - 31 , Figure 30 It is an exploded schematic view of the heat pipe assembly according to the eighteenth embodiment of the present invention; Figure 31 It is Figure 30 a partial cross-sectional schematic view of the heat pipe assembly. As Figures 30 - 31As shown, in this embodiment, the tube wall of the second heat pipe 12P abuts against the outer wall of the first heat pipe 11P, and the second capillary structure 14P in the second heat pipe 12P extends into the first heat pipe 11P and abuts against the first capillary structure 13P in the first heat pipe 11P.

[0134] Please refer to Figure 32 , Figure 32 which is a partial cross-sectional schematic view of the heat pipe assembly according to the nineteenth embodiment of the present invention. As Figure 32 shown, the heat pipe assembly is substantially the same as that Figure 31 shown, so the same parts will not be described again here. Now, the different parts will be described as follows. In this embodiment, the second heat pipe 12P has a flanging structure 121, and the tube wall of the second heat pipe 12P abuts against the outer wall of the first heat pipe 11P through the flanging structure 121. The flanging structure 121 is welded to the outer wall of the first heat pipe 11P, for example.

[0135] Please refer to Figure 33 and in combination with Figure 18 , Figure 33 which is a partial cross-sectional schematic view of the heat pipe assembly according to the twentieth embodiment of the present invention. As Figure 33 shown, the heat pipe assembly 10G may further include a connecting ring 15G. The second heat pipe 12G is connected to the first heat pipe 11 through the connecting ring 15G. Different from Figure 18 shown, in this embodiment, the second heat pipe 12G covers a part of the connecting ring 15G. Specifically, a fourth capillary structure 18 is provided on the inner surface of the connecting ring 15G. One end of the connecting ring 15G is inserted and welded to the opening 115 of the first heat pipe 11, for example. The fourth capillary structure 18 is connected to the first capillary structure 13 and the second capillary structure 14P, and the second heat pipe 12G covers one end of the connecting ring 15G.

[0136] Please refer to Figure 34 , Figure 34 which is an exploded schematic view of the heat pipe assembly according to the twenty-first embodiment of the present invention. As Figure 34 shown, in this embodiment, the second heat pipe 12 is rectangular and has a rectangular opening, and the opening 115 of the first heat pipe 11 is circular. The rectangular opening is aligned and communicated with the opening 115, and the second heat pipe 12 is welded to the opening 115 through the solder 30.

[0137] Please refer to Figure 35 , Figure 35 which is an exploded schematic view of the heat pipe assembly according to the twenty-second embodiment of the present invention. As Figure 35 shown, in this embodiment, the second heat pipe 12 is rectangular and has a rectangular opening, and the opening 115 of the first heat pipe 11 is rectangular. The rectangular opening is aligned and communicated with the opening 115, and the second heat pipe 12 is welded to the opening 115 through the solder 30.

[0138] Please refer to Figure 36 and Figure 37 , Figure 36 which is a schematic structural diagram of an embodiment at one end of the second heat pipe; Figure 37 which is a schematic structural diagram of another embodiment at one end of the second heat pipe. As Figure 36 shown, in this embodiment, one end of the second heat pipe 12 connected to the first heat pipe has a reduced diameter portion 126. As Figure 36 shown, in this embodiment, one end of the second heat pipe 12 connected to the first heat pipe has a flared portion 127.

[0139] Please refer to Figure 38 , Figure 38 which is a schematic structural diagram of the heat pipe assembly according to the twenty-third embodiment of the present invention. As Figure 38 shown, in this embodiment, the second heat pipe 12 and the first heat pipe 11 are in different planes.

[0140] Please refer to Figure 39 , Figure 39 which is a schematic structural diagram of the heat pipe assembly according to the twenty-fourth embodiment of the present invention. As Figure 39 shown, two second heat pipes 12 are installed on the L-shaped first heat pipe 11.

[0141] Please refer to Figure 40 , Figure 40 which is a schematic structural diagram of the heat pipe assembly according to the twenty-fifth embodiment of the present invention. As Figure 40 shown, three second heat pipes 12 are vertically installed on the first heat pipe 11, and the orientations of both ends of the first heat pipe 11 are opposite.

[0142] Although the present invention is disclosed as the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the relevant art, without departing from the spirit and scope of the present invention, may make some modifications and refinements. Therefore, the protection scope of the present invention shall be determined by the protection scope defined by the appended claims of this application.

Claims

1. A heat pipe assembly, characterized in that: Include: a first heat pipe having an annular inner wall, an annular outer wall and at least one opening, wherein the annular inner wall surrounds a first chamber, the annular outer wall faces away from the annular inner wall, and the at least one opening penetrates the annular inner wall and the annular outer wall; and At least one second heat pipe has a second chamber and a communication port, the communication port is connected to the second chamber, the at least one second heat pipe is disposed on the first heat pipe, and the second chamber of the at least one second heat pipe is connected to the first chamber of the first heat pipe through the communication port and the at least one opening; a first capillary structure, the first capillary structure being located in the first chamber of the first heat pipe; At least one second capillary structure is located in the second chamber of the at least one second heat pipe.

2. The heat pipe assembly according to claim 1, characterized in that The first heat pipe includes a first heat conducting section and two second heat conducting sections. The two second heat conducting sections are respectively connected to opposite ends of the first heat conducting section and protrude in the same direction. The at least one opening is located at the first heat conducting section of the first heat pipe.

3. The heat pipe assembly according to claim 2, characterized in that: The two second heat-conducting sections are each connected to two opposite ends of the first heat-conducting section via a bent section.

4. The heat pipe assembly according to claim 2, characterized in that: At least a portion of the first heat-conducting section of the first heat pipe is a flat tube.

5. The heat pipe assembly according to claim 2, characterized in that: The at least one second heat pipe has a folded edge structure at the communication port, and the folded edge structure is overlapped on the annular outer wall surface of the first heat conducting section of the first heat pipe.

6. The heat pipe assembly according to claim 2, wherein: The first heat conducting section has a recessed portion, which is located on the annular outer wall surface and surrounds the at least one opening. The at least one second heat pipe has a folded edge structure at the connecting port, which is located in the recessed portion.

7. The heat pipe assembly according to claim 2, characterized in that: A portion of the at least one second heat pipe is inserted into the at least one opening of the first heat pipe.

8. The heat pipe assembly according to claim 2, wherein: The at least one second heat pipe has a tapered structure at the communication port, and the tapered structure is located in the first chamber of the first heat pipe.

9. The heat pipe assembly according to claim 2, wherein: The first heat conducting section has a recessed portion, the recessed portion is located on the annular outer wall surface, and the at least one second heat pipe is stacked on the recessed portion of the first heat conducting section of the first heat pipe.

10. The heat pipe assembly according to claim 2, wherein: The first heat pipe has a folded edge structure at the at least one opening, and a portion of the at least one second heat pipe is inserted into the folded edge structure of the first heat pipe.

11. The heat pipe assembly according to claim 2, wherein: The first heat pipe has a folded edge structure at the at least one opening, and a portion of the at least one second heat pipe is sleeved on the folded edge structure of the first heat pipe.

12. The heat pipe assembly according to claim 2, wherein: It further includes at least one connecting ring, which includes a narrow-diameter ring portion and a wide-diameter ring portion connected to each other. The narrow-diameter ring portion of the at least one connecting ring is inserted into the at least one opening of the first heat pipe, and a portion of the at least one second heat pipe is inserted into the wide-diameter ring portion of the at least one connecting ring.

13. The heat pipe assembly according to claim 2, wherein: The at least one second heat pipe has a folded edge structure at the communication port, and the folded edge structure is overlapped on the annular inner wall surface of the first heat conducting section of the first heat pipe.

14. The heat pipe assembly according to claim 1, wherein: The at least one second capillary structure is connected to the first capillary structure, wherein the first capillary structure and the at least one second capillary structure are connected by powder sintering or welding.

15. The heat pipe assembly according to claim 14, wherein: The second capillary structure includes two crescent portions, and the two crescent portions are symmetrically arranged in the second chamber.

16. The heat pipe assembly according to claim 14, wherein: The second capillary structure is semicircular.

17. The heat pipe assembly according to claim 1, wherein: The at least one second heat pipe is welded to the first heat pipe.

18. The heat pipe assembly according to claim 1, wherein: It further comprises a plurality of third heat pipes, wherein the third heat pipes are respectively arranged non-parallel to the first heat pipe and the at least one second heat pipe.

19. The heat pipe assembly according to claim 14, wherein: The invention further comprises a third capillary structure, wherein the third capillary structure is located in the first chamber of the first heat pipe and is disposed on the first capillary structure, and the second capillary structure is connected to the first capillary structure through the third capillary structure.

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