heat pipe

Abstract

The utility model discloses a heat pipe, this heat pipe contains pipe body, first composite material layer and second composite material layer. The pipe body contains first pipe portion and the second pipe portion of connecting first pipe portion. The pipe body has the cavity. First composite material layer is at least located in first pipe portion. First composite material layer contains first fiber portion. Second composite material layer is at least located in second pipe portion. Second composite material layer contains second net -like portion and second powdery portion. The average pore size of second composite material layer is less than the average pore size of first composite material layer.

Description

Technical Field

[0001] This utility model relates to a heat pipe. Background Technology

[0002] Generally, heat pipes contain capillary structures on their inner surface to enhance evaporation efficiency. However, existing heat pipes cannot meet consumers' demands for higher evaporation efficiency.

[0003] Therefore, how to develop a heat pipe that can solve the above problems is one of the issues that the industry is currently eager to address by investing research and development resources in. Utility Model Content

[0004] In view of this, one objective of this utility model is to provide a heat pipe that can solve the above-mentioned problems.

[0005] To achieve the above objectives, according to one embodiment of the present invention, a heat pipe includes a pipe body, a first composite material layer, and a second composite material layer. The pipe body includes a first pipe section and a second pipe section connected to the first pipe section. The pipe body has a cavity. The first composite material layer is located at least in the first pipe section. The first composite material layer includes a first fibrous portion. The second composite material layer is located at least in the second pipe section. The second composite material layer includes a second mesh portion and a second powdery portion. The average pore size of the second composite material layer is smaller than the average pore size of the first composite material layer.

[0006] In one or more embodiments of this invention, the heat pipe further includes a plurality of protrusions extending along the extension direction of the pipe body. The protrusions are disposed on the inner surface of the pipe body. An axial groove is defined between the plurality of protrusions.

[0007] In one or more embodiments of the present invention, the second composite material layer has several circumferential grooves located on the inner surface of the second composite material layer.

[0008] In one or more embodiments of this utility model, the first composite material layer is disposed on the inner surface of the second tube portion. The second composite material layer is disposed on the inner surface of the portion of the first composite material layer.

[0009] In one or more embodiments of this utility model, a first composite material layer is disposed on the inner surface of the tube body. A portion of the first composite material layer and a second composite material layer are circumferentially connected to each other on the inner surface of the second tube.

[0010] In one or more embodiments of this utility model, a first composite material layer and a second composite material layer are disposed on the inner surface of the tube. The second composite material layer and the first composite material layer are connected to each other circumferentially on the inner surface of the tube.

[0011] In one or more embodiments of the present invention, the tube body further includes a third tube portion located between the first tube portion and the second tube portion. The portions of the first composite material layer and the second composite material layer are circumferentially connected to each other on the inner surfaces of the second tube portion and the third tube portion.

[0012] In one or more embodiments of this utility model, the second tube section is located in the middle section of the heat pipe. The first tube section is located at both ends of the heat pipe.

[0013] In one or more embodiments of this utility model, a first composite material layer is disposed on the inner surface of the tube body. A portion of the first composite material layer and a second composite material layer are circumferentially connected to each other on the inner surface of the second tube.

[0014] In one or more embodiments of this utility model, a first composite material layer and a second composite material layer are disposed on the inner surface of the tube. The second composite material layer and the first composite material layer are connected to each other circumferentially on the inner surface of the tube.

[0015] In one or more embodiments of the present invention, the tube body further includes a third tube portion located between the first tube portion and the second tube portion. The portions of the first composite material layer and the second composite material layer are circumferentially connected to each other on the inner surfaces of the second tube portion and the third tube portion.

[0016] In one or more embodiments of the present invention, the first composite material layer further includes a first mesh portion. The second composite material layer further includes a second fiber portion.

[0017] To achieve the above objectives, according to one embodiment of the present invention, a heat pipe includes a pipe body, a first composite material layer, and a second composite material layer. The pipe body includes a first tube portion and a second tube portion connected to the first tube portion. The pipe body has a cavity. The first composite material layer includes a first fibrous portion. The second composite material layer is located at least in the second tube portion. The second composite material layer includes a second mesh portion and a second powdery portion. The average pore size of the second composite material layer is smaller than the average pore size of the first composite material layer. The pipe body further has an opening located at one end of the pipe body near the second tube portion.

[0018] In one or more embodiments of this utility model, the first composite material layer is disposed on the inner surface of the second tube portion. The second composite material layer is disposed on the inner surface of the portion of the first composite material layer.

[0019] In one or more embodiments of the present invention, the first composite material layer further includes a first mesh portion. The second composite material layer further includes a second fiber portion.

[0020] In summary, in the heat pipe of this invention, since the average pore size of the second composite material layer, at least in the second tube section, is smaller than the average pore size of the first composite material layer, at least in the first tube section, more recirculated cooling water can condense in the second tube section, thereby enhancing its evaporation capacity. Therefore, the heat pipe of this invention can effectively improve evaporation efficiency to enhance product performance and thus meet consumer demands.

[0021] The above description is only used to illustrate the problem that this utility model intends to solve, the technical means to solve the problem, and the effects it produces. The specific details of this utility model will be described in detail in the following embodiments and related drawings. Attached Figure Description

[0022] To make the above and other objects, features, advantages and embodiments of this utility model more apparent and understandable, the accompanying drawings are described below:

[0023] Figure 1A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0024] Figure 1B The illustration depicts an embodiment of the present invention based on... Figure 1A A cross-sectional view of the heat pipe with section line 1B-1B.

[0025] Figure 1C The illustration depicts an embodiment of the present invention based on... Figure 1A A cross-sectional view of the heat pipe with section line 1C-1C.

[0026] Figure 1D A schematic diagram of the fiber section according to one embodiment of the present invention is shown.

[0027] Figure 1E A schematic diagram of a mesh portion according to one embodiment of the present invention is shown.

[0028] Figure 1F A schematic diagram of the powder portion according to one embodiment of the present invention is shown.

[0029] Figure 2A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0030] Figure 2B The illustration depicts an embodiment of the present invention based on... Figure 2A A cross-sectional view of the heat pipe with section line 2B-2B.

[0031] Figure 2C The illustration depicts an embodiment of the present invention based on... Figure 2A A cross-sectional view of the heat pipe with section line 2C-2C.

[0032] Figure 3A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0033] Figure 3B The illustration depicts an embodiment of the present invention based on... Figure 3A A cross-sectional view of the heat pipe with section line 3B-3B.

[0034] Figure 3C The illustration depicts an embodiment of the present invention based on... Figure 3A A cross-sectional view of the heat pipe with a 3C-3C cross section.

[0035] Figure 4A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0036] Figure 4B The illustration depicts an embodiment of the present invention based on... Figure 4A A cross-sectional view of the heat pipe with section line 4B-4B.

[0037] Figure 4C The illustration depicts an embodiment of the present invention based on... Figure 4A A cross-sectional view of the heat pipe with a 4C-4C cross section.

[0038] Figure 5A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0039] Figure 5B The illustration depicts an embodiment of the present invention based on... Figure 5A A cross-sectional view of the heat pipe with section line 5B-5B.

[0040] Figure 5C The illustration depicts an embodiment of the present invention based on... Figure 5A A cross-sectional view of a heat pipe with a cross section of 5C-5C.

[0041] Figure 6 A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0042] Figure 7 A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0043] Figure 8 A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0044] Figure 9A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0045] Figure 9B The illustration depicts an embodiment of the present invention based on... Figure 9A A cross-sectional view of the heat pipe with section line 9B-9B.

[0046] Figure 9C The illustration depicts an embodiment of the present invention based on... Figure 9A A cross-sectional view of the heat pipe with section lines 9C-9C.

[0047] Figure 9D The illustration depicts an embodiment of the present invention based on... Figure 9A A cross-sectional view of the heat pipe with section lines 9D-9D.

[0048] Figure 10A A schematic diagram of a heat pipe according to one embodiment of the present invention is shown.

[0049] Figure 10B The illustration depicts an embodiment of the present invention based on... Figure 10A A cross-sectional view of the heat pipe with section lines 10B-10B.

[0050] Figure 10C The illustration depicts an embodiment of the present invention based on... Figure 10A A cross-sectional view of a heat pipe with a cross section of 10°C-10°C.

[0051] In the attached figures, the following labels are used:

[0052] 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000: Heat pipes

[0053] 110,210,310,410,510,610,710,810,910,1010: Pipe body

[0054] 110a, 210a, 310a, 410a, 510a, 910a, 1010a: Inner surface

[0055] 112,212,312,412,512,612,712,812,912,1012: First Pipeline

[0056] 114,214,314,414,514,614,714,814,914,1014: Second Pipeline

[0057] 116,216,316,416,516,616,716,816,916,1016: Third Management Section

[0058] 117,217,917,1017: convex strips

[0059] 120, 220, 320, 420, 520, 620, 720, 820, 920, 1020: First composite material layer

[0060] 130, 230, 330, 430, 530, 630, 730, 830, 930, 1030: Second composite material layer

[0061] 1B-1B, 1C-1C, 2B-2B, 2C-2C, 3B-3B, 3C-3C, 4B-4B, 4C-4C, 5B-5B, 5C-5C, 9B-9B, 9C-9C, 9D-9D, 10B-10B, 10C-10C: Cutting lines

[0062] CL: Condenser

[0063] CV: Cavity

[0064] FB: Fiber Department

[0065] GR: Axial Groove

[0066] HT: Evaporator

[0067] MS: Reticular Part

[0068] OP: Opening

[0069] PD: Powdered product Detailed Implementation

[0070] Several embodiments of the present invention will be disclosed below with reference to the accompanying drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and elements will be shown in the drawings in a simple schematic manner. The same reference numerals will be used to denote the same or similar elements in all the drawings.

[0071] The structure, function, and connection relationship between the components included in the heat pipe 100 of this embodiment will be described in detail below.

[0072] Please refer to Figure 1A . Figure 1A This is a schematic diagram of a heat pipe 100 according to one embodiment of the present invention. Figure 1AAs shown, in this embodiment, the heat pipe 100 includes a pipe body 110, a first composite material layer 120, and a second composite material layer 130. The pipe body 110 has a cavity CV and extends along the axial direction. The first composite material layer 120 and the second composite material layer 130 are located within the pipe body 110. Specifically, the pipe body 110 includes a first pipe section 112, a second pipe section 114, and a third pipe section 116. The third pipe section 116 is located between the first pipe section 112 and the second pipe section 114, and the first pipe section 112 is connected to the second pipe section 114 through the third pipe section 116. In other words, the first pipe section 112 and the second pipe section 114 are located on both sides of the pipe body 110. The first pipe section 112, the second pipe section 114, and the third pipe section 116 are in communication with each other. The first pipe section 112 contacts the condenser CL. The second pipe section 114 contacts the evaporator HT. The first composite material layer 120 is located at least in the first tube portion 112, and the second composite material layer 130 is located at least in the second tube portion 114. In some embodiments, the first composite material layer 120 is located in both the first tube portion 112 and the third tube portion 116. The second composite material layer 130 is located in the second tube portion 114.

[0073] like Figure 1A As shown, in some embodiments, the second composite material layer 130 includes a serrated structure. Specifically, the serrated structure is defined by a plurality of circumferential grooves spaced apart from each other. The circumferential grooves of the second composite material layer 130 are located on the inner surface of the second composite material layer 130.

[0074] In some embodiments, the first tube section 112 is the condensation end of the tube body 110, the second tube section 114 is the evaporation end of the tube body 110, and the third tube section 116 is the insulation end of the tube body 110.

[0075] Please refer to Figure 1B as well as Figure 1C . Figure 1B According to one embodiment of the present invention, based on Figure 1A A cross-sectional view of heat pipe 100 with section line 1B-1B. Figure 1C According to one embodiment of the present invention, based on Figure 1A A cross-sectional view of heat pipe 100 with section line 1C-1C. (See diagram below.) Figure 1B as well as Figure 1CAs shown, in this embodiment, the heat pipe 100 further includes a plurality of protrusions 117 disposed on the inner surface 110a of the pipe body 110. The plurality of protrusions 117 extend along the extension direction (e.g., axial) of the pipe body 110. The heat pipe 100 further has a plurality of axial grooves GR, and the axial grooves GR are defined between the plurality of protrusions 117. A first composite material layer 120 and a second composite material layer 130 line the inner surface 110a of the pipe body 110 and cover the protrusions 117.

[0076] like Figure 1B as well as Figure 1C As shown, in some embodiments, the heat pipe 100 is substantially flat and tubular. Specifically, the heat pipe 100 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 100.

[0077] Please refer to Figures 1D to 1F . Figure 1D This is a schematic diagram of the fiber section FB according to one embodiment of the present invention. Figure 1E This is a schematic diagram of the mesh portion MS according to one embodiment of the present invention. Figure 1F This is a schematic diagram of the powder portion PD according to one embodiment of the present invention. Figures 1D to 1F As shown, in this embodiment, the first composite material layer 120 includes at least a fibrous portion FB, and the second composite material layer 130 includes at least a mesh portion MS and a powder portion PD. In some embodiments, the first composite material layer 120 includes a fibrous portion FB and a mesh portion MS, and the second composite material layer 130 includes a fibrous portion FB, a mesh portion MS, and a powder portion PD. The pore size of the powder portion PD is smaller than the pore size of the fibrous portion FB and the pore size of the mesh portion MS. The average pore size of the second composite material layer 130 is smaller than the average pore size of the first composite material layer 120.

[0078] The structure, function, and connection relationship between the components included in the heat pipe 200 of this embodiment will be described in detail below.

[0079] Please refer to Figure 2A . Figure 2A This is a schematic diagram of a heat pipe 200 according to one embodiment of the present invention. Figure 2AAs shown, in this embodiment, the heat pipe 200 includes a pipe body 210, a first composite material layer 220, and a second composite material layer 230. The structural configuration of the heat pipe 200 is generally similar to that of the heat pipe 100, except that the first composite material layer 220 of the heat pipe 200 extends substantially over the entire inner surface of the pipe body 210. Specifically, the first composite material layer 220 is located in the first pipe section 212, the second pipe section 214, and the third pipe section 216 of the pipe body 210, while the second composite material layer 230 is located only in the second pipe section 214. The portion of the first composite material layer 220 is disposed on the inner surface of the second pipe section 214, and the second composite material layer 230 is disposed on the inner surface of the portion of the first composite material layer 220.

[0080] Please refer to Figure 2B as well as Figure 2C . Figure 2B According to one embodiment of the present invention, based on Figure 2A A cross-sectional view of heat pipe 200 with section line 2B-2B. Figure 2C According to one embodiment of the present invention, based on Figure 2A A cross-sectional view of heat pipe 200 with section line 2C-2C. (See diagram below.) Figure 2B as well as Figure 2C As shown, in this embodiment, the heat pipe 200 further includes several protrusions 217 disposed on the inner surface 210a of the pipe body 210. The pipe body 210, the first composite material layer 220, and the second composite material layer 230 are arranged radially. Figure 2B As shown, in the second tube section 214, the first composite material layer 220 lining the inner surface 210a of the tube body 210 and covering the protrusion 217, and the second composite material layer 230 lining the inner surface of the first composite material layer 220. Figure 2C As shown, in the first tube section 212 and the third tube section 216, the first composite material layer 220 lining the inner surface 210a of the tube body 210 and covering the protrusion 217.

[0081] like Figure 2B as well as Figure 2C As shown, in some embodiments, the heat pipe 200 is substantially flat and tubular. Specifically, the heat pipe 200 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 200.

[0082] The structure, function, and connection relationship between the components included in the heat pipe 300 of this embodiment will be described in detail below.

[0083] Please refer to Figure 3A . Figure 3A A schematic diagram of a heat pipe 300 according to one embodiment of the present invention is shown. Figure 3A As shown, in this embodiment, the heat pipe 300 includes a pipe body 310, a first composite material layer 320, and a second composite material layer 330. The structural configuration of the heat pipe 300 is generally similar to that of the heat pipe 200, except that the first composite material layer 320 is located in the first pipe portion 312, the second pipe portion 314, and the third pipe portion 316 of the pipe body 310 and extends axially, but it does not completely cover the inner surface of the pipe body 310 in the circumferential direction. The second composite material layer 330 is only located in the second pipe portion 314 and does not completely cover the inner surface of the pipe body 310. In addition, the heat pipe 300 does not include the protrusion 217.

[0084] Please refer to Figure 3B as well as Figure 3C . Figure 3B According to one embodiment of the present invention, based on Figure 3A A cross-sectional view of heat pipe 300 with section line 3B-3B. Figure 3C According to one embodiment of the present invention, based on Figure 3A A cross-sectional view of heat pipe 300 with section line 3C-3C. (See diagram below.) Figure 3B As shown, in the second tube section 314, a first composite material layer 320 is disposed on the inner surface 310a of the tube body 310, and portions of the first composite material layer 320 and the second composite material layer 330 are circumferentially connected to each other on the inner surface of the second tube section 314. In some embodiments, the first composite material layer 320 is located on the side of the tube body 310 closer to the evaporator HT. Figure 3C As shown, in the first tube section 312 and the third tube section 316, only the first composite material layer 320 is disposed on the inner surface 310a of the tube body 310.

[0085] like Figure 3B as well as Figure 3C As shown, in some embodiments, the heat pipe 300 is substantially flat and tubular. Specifically, the heat pipe 300 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 300.

[0086] The structure, function, and connection relationship between the components included in the heat pipe 400 of this embodiment will be described in detail below.

[0087] Please refer to Figure 4A . Figure 4A This is a schematic diagram of a heat pipe 400 according to one embodiment of the present invention. Figure 4AAs shown, in this embodiment, the structural configuration of heat pipe 400 is generally similar to that of heat pipe 300. The difference lies in that the second composite material layer 430 of heat pipe 400 is located in the second tube section 414 and the third tube section 416 of tube body 410. For the sake of simplicity, the structural configuration of heat pipe 400 will not be described in detail here.

[0088] Please refer to Figure 4B as well as Figure 4C . Figure 4B According to one embodiment of the present invention, based on Figure 4A A cross-sectional view of heat pipe 400 with section line 4B-4B. Figure 4C According to one embodiment of the present invention, based on Figure 4A A cross-sectional view of the 400 heat pipe with a 4C-4C cross section. (See diagram below.) Figure 4B As shown, in the second tube section 414 and the third tube section 416, a first composite material layer 420 is disposed on the inner surface 410a of the tube body 410, and portions of the first composite material layer 420 and the second composite material layer 430 are circumferentially connected to each other on the inner surfaces of the second tube section 414 and the third tube section 416. Figure 4C As shown, in the first tube section 412, only the first composite material layer 420 is disposed on the inner surface 410a of the tube body 410.

[0089] like Figure 4B as well as Figure 4C As shown, in some embodiments, the heat pipe 400 is substantially flat and tubular. Specifically, the heat pipe 400 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 400.

[0090] The structure, function, and connection relationship between the components included in the heat pipe 500 of this embodiment will be described in detail below.

[0091] Please refer to Figure 5A . Figure 5A This is a schematic diagram of a heat pipe 500 according to one embodiment of the present invention. Figure 5A As shown, in this embodiment, the structural configuration of heat pipe 500 is generally similar to that of heat pipe 400. The difference is that the first composite material layer 520 and the second composite material layer 530 of heat pipe 500 are both located in the first tube section 512, the second tube section 514, and the third tube section 516 of tube body 510. For the sake of simplicity, the structural configuration of heat pipe 500 will not be described in detail here.

[0092] Please refer to Figure 5B as well as Figure 5C . Figure 5B According to one embodiment of the present invention, based on Figure 5A A cross-sectional view of heat pipe 500 with section line 5B-5B. Figure 5C According to one embodiment of the present invention, based on Figure 5A A cross-sectional view of heat pipe 500 with a 5C-5C cross section. (See diagram below.) Figure 5B as well as Figure 5C As shown, the first composite material layer 520 and the second composite material layer 530 are disposed on the inner surface 510a of the tube body 510, and the first composite material layer 520 and the second composite material layer 530 are connected to each other circumferentially on the inner surfaces of the first tube section 512, the second tube section 514 and the third tube section 516.

[0093] like Figure 5B as well as Figure 5C As shown, in some embodiments, the heat pipe 500 is substantially flat and tubular. Specifically, the heat pipe 500 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 500.

[0094] The structure, function, and connection relationship between the components included in the heat pipe 600 of this embodiment will be described in detail below.

[0095] Please refer to Figure 6 . Figure 6 This is a schematic diagram of a heat pipe 600 according to one embodiment of the present invention. Figure 6 As shown, in this embodiment, the heat pipe 600 includes a pipe body 610, a first composite material layer 620, and a second composite material layer 630. The pipe body 610 has a cavity CV and extends axially. The first composite material layer 620 and the second composite material layer 630 are located within the pipe body 610. Specifically, the pipe body 610 includes two first pipe sections 612, a second pipe section 614, and two third pipe sections 616. The two first pipe sections 612 are located at both ends of the pipe body 610, the second pipe section 614 is located between the two first pipe sections 612, and each third pipe section 616 is located between the first pipe section 612 and the second pipe section 614. The first pipe sections 612, the second pipe sections 614, and the third pipe sections 616 are in communication with each other. The first pipe section 612 contacts the condenser CL. The second pipe section 614 contacts the evaporator HT. The first composite material layer 620 is located in the first tube section 612, the second tube section 614, and the third tube section 616 and extends axially, and the first composite material layer 620 does not completely line the inner surface of the tube body 610 in the circumferential direction. The second composite material layer 630 is only located in the second tube section 614 and does not completely line the inner surface of the tube body 610.

[0096] Specifically, in the second tube section 614, the portion of the first composite material layer 620 and the portion of the second composite material layer 630 are circumferentially connected to each other on the inner surface of the second tube section 614. In some embodiments, the first composite material layer 620 is located on the side of the tube body 610 closer to the evaporator HT. In the first tube section 612 and the third tube section 616, only the first composite material layer 620 is disposed on the inner surface of the tube body 610.

[0097] like Figure 6 As shown, in some embodiments, the heat pipe 600 is substantially flat and tubular. However, this invention is not intended to limit the shape of the heat pipe 600.

[0098] The structure, function, and connection relationship between the components included in the heat pipe 700 of this embodiment will be described in detail below.

[0099] Please refer to Figure 7 . Figure 7 This is a schematic diagram of a heat pipe 700 according to one embodiment of the present invention. Figure 7 As shown, in this embodiment, the first composite material layer 720 of the heat pipe 700 is located in the first tube section 712, the second tube section 714, and the third tube section 716 of the tube body 710 and extends axially. The structural configuration of the heat pipe 700 is generally similar to that of the heat pipe 600, except that the second composite material layer 730 of the heat pipe 700 is located in the second tube section 714 and the third tube section 716 of the tube body 710. Specifically, in the second tube section 714 and the third tube section 716, the first composite material layer 720 is disposed on the inner surface of the tube body 710, and the portion of the first composite material layer 720 and the second composite material layer 730 are circumferentially connected to each other on the inner surfaces of the second tube section 714 and the third tube section 716. In the first tube section 712, only the first composite material layer 720 is disposed on the inner surface of the tube body 710.

[0100] like Figure 7 As shown, in some embodiments, the heat pipe 700 is substantially flat and tubular. However, this invention is not intended to limit the shape of the heat pipe 700.

[0101] The structure, function, and connection relationship between the components included in the heat pipe 800 of this embodiment will be described in detail below.

[0102] Please refer to Figure 8 . Figure 8 This is a schematic diagram of a heat pipe 800 according to one embodiment of the present invention. Figure 8As shown, in this embodiment, the first composite material layer 820 of the heat pipe 800 is located in the first tube section 812, the second tube section 814, and the third tube section 816 of the tube body 810 and extends axially. The structural configuration of the heat pipe 800 is generally similar to that of the heat pipe 700, except that both the first composite material layer 820 and the second composite material layer 830 of the heat pipe 800 are located in the first tube section 812, the second tube section 814, and the third tube section 816 of the tube body 810. Specifically, the first composite material layer 820 and the second composite material layer 830 are disposed on the inner surface of the tube body 810, and the first composite material layer 820 and the second composite material layer 830 are circumferentially connected to each other on the inner surfaces of the first tube section 812, the second tube section 814, and the third tube section 816.

[0103] like Figure 8 As shown, in some embodiments, the heat pipe 800 is substantially flat and tubular. However, this invention is not intended to limit the shape of the heat pipe 800.

[0104] The structure, function, and connection relationship between the components included in the heat pipe 900 of this embodiment will be described in detail below.

[0105] Please refer to Figure 9A . Figure 9A This is a schematic diagram of a heat pipe 900 according to one embodiment of the present invention. Figure 9A As shown, in this embodiment, the heat pipe 900 includes a pipe body 910, a first composite material layer 920, and a second composite material layer 930. The pipe body 910 has a cavity CV and extends axially. The first composite material layer 920 and the second composite material layer 930 are located within the pipe body 910. Specifically, the pipe body 910 includes a first pipe section 912, a second pipe section 914, and a third pipe section 916. The third pipe section 916 is located between the first pipe section 912 and the second pipe section 914, and the first pipe section 912 is connected to the second pipe section 914 through the third pipe section 916. In other words, the first pipe section 912 and the second pipe section 914 are located on both sides of the pipe body 910. The first pipe section 912, the second pipe section 914, and the third pipe section 916 are in communication with each other. The pipe body 910 has an opening OP located at one end of the pipe body 910 near the second pipe section 914. The first composite material layer 920 is located in the third tube section 916, and the second composite material layer 930 is located in the second tube section 914.

[0106] In some embodiments, the first tube section 912 is the condensation end of the tube body 910, the second tube section 914 is the evaporation end of the tube body 910, and the third tube section 916 is the insulation end of the tube body 910.

[0107] Please refer to Figures 9B to 9D . Figure 9B According to one embodiment of the present invention, based on Figure 9A A cross-sectional view of heat pipe 900 with section line 9B-9B. Figure 9C According to one embodiment of the present invention, based on Figure 9A A cross-sectional view of the heat pipe 900 with the 9C-9C section. Figure 9D According to one embodiment of the present invention, based on Figure 9A A cross-sectional view of heat pipe 900 with section lines 9D-9D. (See diagram below.) Figure 9B As shown, the heat pipe 900 further includes a plurality of protrusions 917 disposed on the inner surface 910a of the pipe body 910. The plurality of protrusions 917 extend along the extending direction (e.g., axially) of the pipe body 910. The heat pipe 900 further has a plurality of axial grooves GR, and the axial grooves GR are defined between the plurality of protrusions 917. Figure 9C As shown, in the third tube section 916, a first composite material layer 920 is disposed on the inner surface 910a of the tube body 910 and covers the protrusion 917. For example... Figure 9D As shown, in the second tube section 914, the second composite material layer 930 lining the inner surface 910a of the tube body 910 and covering the protrusion 117.

[0108] like Figures 9B to 9D As shown, in some embodiments, the heat pipe 900 is substantially cylindrical. Specifically, the heat pipe 900 has, for example, a circular cross-section. In some other embodiments, the heat pipe 900 may also be flattened. Specifically, the heat pipe 900 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 900.

[0109] The structure, function, and connection relationship between the components included in the heat pipe 1000 of this embodiment will be described in detail below.

[0110] Please refer to Figure 10A . Figure 10A This is a schematic diagram of a heat pipe 1000 according to one embodiment of the present invention. Figure 10AAs shown, in this embodiment, the heat pipe 1000 includes a pipe body 1010, a first composite material layer 1020, and a second composite material layer 1030. The structural configuration of the heat pipe 1000 is generally similar to that of the heat pipe 900, except that the first composite material layer 1020 of the heat pipe 1000 extends substantially over the entire inner surface of the pipe body 1010. Specifically, the first composite material layer 1020 is located in the first pipe section 1012, the second pipe section 1014, and the third pipe section 1016 of the pipe body 1010, while the second composite material layer 1030 is located only in the second pipe section 1014. The portion of the first composite material layer 1020 is disposed on the inner surface of the second pipe section 1014, and the second composite material layer 1030 is disposed on the inner surface of the portion of the first composite material layer 1020.

[0111] Please refer to Figure 10B as well as Figure 10C . Figure 10B According to one embodiment of the present invention, based on Figure 10A A cross-sectional view of heat pipe 1000 with section line 10B-10B. Figure 10C According to one embodiment of the present invention, based on Figure 10A A cross-sectional view of a 1000 heat pipe with a cross-section of 10C-10C. (See attached image.) Figure 10B as well as Figure 10C As shown, in this embodiment, the heat pipe 1000 further includes a plurality of protrusions 1017 disposed on the inner surface 1010a of the pipe body 1010. The pipe body 1010, the first composite material layer 1020, and the second composite material layer 1030 are arranged radially. Figure 10B As shown, in the first tube section 1012 and the third tube section 1016, the first composite material layer 1020 lining the inner surface 1010a of the tube body 1010 and covering the protrusion 1017. For example... Figure 10C As shown, in the second tube section 1014, the first composite material layer 1020 lining the inner surface 1010a of the tube body 1010 and covering the protrusion 1017, and the second composite material layer 1030 lining the inner surface of the first composite material layer 1020.

[0112] like Figure 10B as well as Figure 10C As shown, in some embodiments, the heat pipe 1000 is substantially cylindrical. Specifically, the heat pipe 1000 has, for example, a circular cross-section. In some other embodiments, the heat pipe 1000 may also be flattened. Specifically, the heat pipe 1000 has, for example, an elliptical cross-section. However, this invention is not intended to limit the shape of the heat pipe 1000.

[0113] In some embodiments, the average pore size of the second composite material layer 930 is smaller than the average pore size of the first composite material layer 920, and the average pore size of the second composite material layer 1030 is smaller than the average pore size of the first composite material layer 1020.

[0114] In one application scenario, heat pipe 900 can be configured vertically. Specifically, the opening OP of heat pipe 900 is the lower end of heat pipe 900, and the closed end of heat pipe 900 is the upper end of heat pipe 900. The opening OP can be connected to a condensation tank (not shown) to collect condensate flowing sequentially through the first pipe section 912, the third pipe section 916, and the second pipe section 914. Heat pipe 1000 can also be configured in a similar manner to heat pipe 900.

[0115] In some implementations, heat pipe 900 and heat pipe 1000 can be used in 2.5DVC or 3DVC architectures.

[0116] From the detailed description of the specific embodiments of this utility model above, it is evident that in the heat pipe of this utility model, since the average pore size of the second composite material layer located at least in the second tube section is smaller than the average pore size of the first composite material layer located at least in the first tube section, more recirculated cooling water can condense in the second tube section, thereby enhancing the evaporation capacity of the second tube section. Therefore, the heat pipe of this utility model can effectively improve evaporation efficiency to enhance product performance, thereby meeting consumer demands.

[0117] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A heat pipe, comprising: A tube body includes a first tube portion and a second tube portion connected to the first tube portion, and the tube body has a cavity; A first composite material layer, at least located within the first tube portion, and the first composite material layer comprising a first fiber portion; and A second composite material layer is located at least within the second tube portion, and the second composite material layer includes a second mesh portion and a second powder portion. The average pore size of the second composite material layer is smaller than the average pore size of the first composite material layer.

2. The heat pipe according to claim 1, wherein It further includes a plurality of protrusions extending along an extension direction of the tube body, the protrusions being disposed on an inner surface of the tube body, and an axial groove being defined between the protrusions.

3. The heat pipe according to claim 1, wherein The second composite material layer has several circumferential grooves located on one inner surface of the second composite material layer.

4. The heat pipe according to claim 1, wherein A portion of the first composite material layer is disposed on an inner surface of the second tube portion, and the second composite material layer is disposed on an inner surface of that portion of the first composite material layer.

5. The heat pipe of claim 1, wherein The first composite material layer is disposed on an inner surface of the tube body, and a portion of the first composite material layer and the second composite material layer are connected to each other along a circumferential direction on the inner surface of the second tube portion.

6. The heat pipe of claim 1, wherein The first composite material layer and the second composite material layer are disposed on an inner surface of the tube body, and the second composite material layer and the first composite material layer are connected to each other along a circumferential direction on the inner surface of the tube body.

7. The heat pipe of claim 1, wherein The tube further includes a third tube portion located between the first tube portion and the second tube portion, and a portion of the first composite material layer and the second composite material layer are connected to each other circumferentially on an inner surface of the second tube portion and an inner surface of the third tube portion.

8. The heat pipe of claim 1, wherein The second tube section is located in the middle section of the heat pipe, and the first tube section is located at both ends of the heat pipe.

9. The heat pipe according to claim 8, wherein The first composite material layer is disposed on an inner surface of the tube body, and a portion of the first composite material layer and the second composite material layer are connected to each other along a circumferential direction on the inner surface of the second tube portion.

10. The heat pipe of claim 8, wherein The first composite material layer and the second composite material layer are disposed on an inner surface of the tube body, and the second composite material layer and the first composite material layer are connected to each other along a circumferential direction on the inner surface of the tube body.

11. The heat pipe of claim 8, wherein The tube further includes a third tube portion located between the first tube portion and the second tube portion, and a portion of the first composite material layer and the second composite material layer are connected to each other circumferentially on an inner surface of the second tube portion and an inner surface of the third tube portion.

12. The heat pipe of claim 1, wherein The first composite material layer further includes a first mesh portion, and the second composite material layer further includes a second fiber portion.

13. A heat pipe, characterized by Include: A tube body includes a first tube portion and a second tube portion connected to the first tube portion, and the tube body has a cavity; A first composite material layer, comprising a first fiber portion; and A second composite material layer is located at least within the second tube portion, and the second composite material layer includes a second mesh portion and a second powder portion. The average pore size of the second composite material layer is smaller than the average pore size of the first composite material layer. The tube further has an opening located at one end of the tube near the second tube section.

14. The heat pipe of claim 13, wherein A portion of the first composite material layer is disposed on an inner surface of the second tube portion, and the second composite material layer is disposed on an inner surface of that portion of the first composite material layer.

15. The heat pipe of claim 13, wherein The first composite material layer further includes a first mesh portion, and the second composite material layer further includes a second fiber portion.

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