Jig group and three-dimensional uniform temperature plate shell structure prepared by same

Abstract

The invention provides a jig group and a three-dimensional uniform-temperature plate shell structure prepared by the jig group. The jig group comprises a base, a template, at least one first positioning piece and at least one central rod, the base is provided with a bearing face, and at least one channel is formed in the bearing face and used for containing a pipe body to be machined. The mold plate is provided with a first surface and a second surface, the first surface is provided with a powder injection groove, the second surface is provided with a mold cavity, and the powder injection groove is communicated with the mold cavity. The second surface of the template covers a to-be-processed plate body placed on the base, at least one first through hole is formed in the area corresponding to the mold cavity, and the first through hole is aligned with the opening of the channel. The first positioning piece is inserted into the first through hole. And the central rod extends into the pipe body accommodated in the channel through the first positioning piece. The outer diameter of the column body of the center rod is smaller than the inner diameter of the pipe body, so that a powder filling gap is formed between the center rod and the inner wall of the pipe body and used for filling powder materials.

Description

Technical Field

[0001] The present invention relates to a jig set, in particular to a jig set for preparing a three-dimensional temperature equalizing plate capillary structure and a three-dimensional temperature equalizing plate shell structure prepared by the jig set. Background Art

[0002] As the performance of electronic devices continues to improve, their heat generation also increases. With its excellent heat dissipation performance, the three-dimensional heat spreader has become one of the efficient thermal management solutions and is widely used in various high heat flux density scenarios. The heat dissipation performance of the three-dimensional heat spreader depends largely on the design and preparation of the internal capillary structure. The core function of the capillary structure is to promote the uniform distribution and efficient reflux of the working fluid, thereby achieving stable and efficient heat conduction.

[0003] The conventional method of manufacturing a three-dimensional heat spreader usually involves separately manufacturing the capillary structure of the tube body and the heat spreader body, and then combining the two by welding or bonding. However, this method faces many challenges.

[0004] First, since the capillary structures of the tube body and the heat spreader body are made separately, it is difficult to achieve seamless connection during the combination process, and discontinuous areas are often formed between the capillary structures of the two, which significantly reduces the reflux efficiency of the working fluid. Secondly, the combination of capillary structures requires welding, bonding or secondary sintering. These processes are not only cumbersome, but may also damage the capillary structure, further reducing its performance. In addition, the materials used in the welding or bonding process may increase the thermal resistance of the joint, thereby reducing the overall heat conduction efficiency and directly affecting the heat dissipation performance of the three-dimensional heat spreader.

[0005] Therefore, how to achieve one-time molding of the capillary structure of the tube body and the plate body in the three-dimensional temperature equalizing plate to ensure the integrity of the capillary structure and improve the reflux efficiency of the working fluid has become a key issue to be urgently solved in the field of three-dimensional temperature equalizing plates. Summary of the invention

[0006] To solve the above technical problems, the objective of the present invention is to provide a fixture set and a three-dimensional heat pipe housing structure prepared therefrom. The present invention forms a molding space jointly by the mold cavity of the template and the workpiece to be processed, and accurately positions the central rod within the center of the tube body of the workpiece through the first positioning member, so as to form a uniform powder filling gap between the central rod and the inner wall of the tube body, thereby realizing the filling of the powder material. The powder material can be injected through the powder injection groove of the template and filled into the molding space jointly formed by the mold cavity and the plate body of the workpiece, as well as the gap in the tube body not occupied by the central rod. Thereby, a continuous and uninterrupted three-dimensional capillary structure is formed on the surface of the workpiece plate body and the inner wall of the tube body through the sintering process, realizing the one-time integral molding of the capillary structures on both the surface of the plate body and the inner wall of the tube body. This technical solution ensures the continuity and consistency of the capillary structure, improves the reflux efficiency of the working fluid, simplifies the manufacturing process, and enhances the heat dissipation performance and product reliability of the three-dimensional heat pipe.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A fixture set for forming a three-dimensional capillary structure on a workpiece, the workpiece having a plate body and at least one tube body provided on the plate body, characterized in that the fixture set includes:

[0009] A base having a bearing surface, at least one channel being provided in the base, the channel having an opening provided on the bearing surface;

[0010] A template having a first surface and a second surface disposed opposite to each other, a powder injection groove being provided on the first surface, a mold cavity being provided on the second surface, at least one first through hole being provided in the area of the template corresponding to the mold cavity, the first through hole corresponding to the opening of the channel, and the template being used to cover the workpiece on the base with the second surface;

[0011] At least one first positioning member having a through hole and being detachably inserted into the first through hole; and

[0012] At least one central rod for passing through the first positioning member inserted into the first through hole and extending into the interior of the tube body accommodated in the channel, the outer diameter of the column body of the central rod being smaller than the inner diameter of the tube body, so as to form a gap between the central rod and the inner wall of the tube body for filling a material.

[0013] In the fixture set, a powder injection port is provided at the bottom of the powder injection groove, and the powder injection groove is communicated with the mold cavity through the powder injection port.

[0014] In the fixture set, a concave portion and a frame portion surrounding the concave portion are provided on the first surface of the template, the powder injection groove is provided on the surface of the concave portion, and at least two first positioning holes and at least two second positioning holes are provided on the frame portion.

[0015] The fixture set described above, wherein: it further includes a cover plate for covering the template. The cover plate is provided with at least a pair of third through holes corresponding to the first through holes and a pair of fourth through holes corresponding to the powder injection grooves, and the cover plate is provided with at least two first positioning posts for cooperating with at least two first positioning holes of the frame part.

[0016] The fixture set described above, wherein at least two second positioning posts are provided on the bearing surface for cooperating with at least two second positioning holes of the frame part.

[0017] The fixture set described above, wherein the first positioning member includes a flange section and a cylindrical section. The through hole penetrates through the flange section and the cylindrical section. The cylindrical section is used for being inserted into the first through hole of the template, and the flange section is used for being clamped on the first surface of the template.

[0018] The fixture set described above, wherein the outer diameter of the cylindrical section matches the inner diameter of the first through hole of the template, and the inner diameter of the cylindrical section matches the outer diameter of the column body of the center rod.

[0019] A fixture set for forming a three-dimensional capillary structure on a workpiece. The workpiece has a plate body and at least one tube body and at least one bent tube body arranged on the plate body. The inner wall of the bent tube body is provided with a capillary structure. The fixture set is characterized in that it includes:

[0020] A base having a bearing surface. At least one channel and at least one bent tube through groove are provided in the base. Each of the channel and the bent tube through groove has an opening, and the openings of the channel and the bent tube through groove are both arranged on the bearing surface;

[0021] A template having a first surface and a second surface arranged oppositely. The first surface is provided with a powder injection groove, and the second surface is provided with a mold cavity. The template is provided with at least one first through hole and at least one second through hole in the area corresponding to the mold cavity. The first through hole corresponds to the opening of the channel, and the second through hole corresponds to the opening of the bent tube through groove. The template is used for covering the workpiece placed on the base with the second surface;

[0022] At least one first positioning member and at least one second positioning member. Each of the first positioning member and the second positioning member is provided with a through hole and is respectively detachably inserted into the first through hole and the second through hole;

[0023] At least one center rod for passing through the first positioning member inserted into the first through hole and extending to the bottom of the tube body accommodated in the channel. The outer diameter of the column body of the center rod is smaller than the inner diameter of the tube body so as to form a gap between the center rod and the inner wall of the tube body for filling a material; and

[0024] At least one interference rod, which is a conical structure and is used to pass through a second positioning member inserted in the second through hole and extend into a bent pipe body accommodated in the bent pipe groove, and contact the capillary structure of the bent pipe body through the conical structure to block the material from entering the interior of the bent pipe body.

[0025] For the fixture set described above, wherein a powder injection port is provided at the bottom of the powder injection groove, and the powder injection groove is communicated with the mold cavity through the powder injection port.

[0026] For the fixture set described above, wherein a ring wall is provided on the second surface of the template, and the ring wall surrounds and forms the mold cavity.

[0027] For the fixture set described above, wherein a concave portion and a frame portion surrounding the concave portion are provided on the first surface of the template, the powder injection groove is provided on the surface of the concave portion, and at least two first positioning holes and at least two second positioning holes are provided on the frame portion.

[0028] For the fixture set described above, further comprising a cover plate for covering the template, and at least two first positioning columns are provided on the cover plate for cooperating with at least two first positioning holes of the frame portion.

[0029] For the fixture set described above, wherein at least two second positioning columns are provided on the bearing surface for cooperating with at least two second positioning holes of the frame portion.

[0030] For the fixture set described above, wherein the second positioning member includes a flange section and a column section, the through hole penetrates through the flange section and the column section, the column section is used for being inserted into the second through hole of the template, and the flange section is used for being clamped on the first surface of the template.

[0031] For the fixture set described above, wherein the outer diameter of the column section matches the inner diameter of the second through hole of the template.

[0032] A three-dimensional heat pipe housing structure prepared by the fixture set described above, characterized by comprising:

[0033] A plate body having a first surface and a second surface oppositely arranged, and at least one first opening is provided on the plate body;

[0034] At least one pipe body, one end of the pipe body is arranged on the second surface of the plate body and is communicated with the plate body through the first opening of the plate body, and the other end of the pipe body is a closed structure; and

[0035] A three-dimensional capillary structure is provided on the first surface of the plate body and continuously extends to the inner wall surface of the pipe body through the first opening.

[0036] The described three-dimensional heat pipe housing structure, wherein: it further includes at least one bent pipe body, the plate body is further provided with at least one second opening, one end of the bent pipe body is arranged on the second surface of the plate body and is communicated with the second opening of the plate body, and the other end of the bent pipe body is a closed structure; the three-dimensional capillary structure is arranged on the first surface of the plate body, extends to the inner wall surface of the pipe body through the first opening, and is connected with the capillary structure of the bent pipe body through the second opening.

[0037] In the embodiment of the present invention, through the above technical solution, the central rod is accurately positioned at the center of the pipe body by using the first positioning member, so that a uniform powder filling gap is formed between the central rod and the inner wall of the pipe body, and the forming space jointly formed by the mold cavity of the template and the workpiece is used to realize the uniform filling of the powder material on the surface of the workpiece plate body and the inner wall of the pipe body, so as to realize the one-time integral molding of the capillary structure of the pipe body and the capillary structure of the plate body, solve the problems of incomplete lap joint of the traditional three-dimensional heat pipe capillary structure, cumbersome manufacturing process and damage to the capillary structure, and significantly improve the reflux efficiency of the working fluid. At the same time, the manufacturing process steps are simplified, and the heat dissipation performance and product reliability of the three-dimensional heat pipe are further improved. Brief Description of the Drawings

[0038] Figure 1 It is a three-dimensional schematic diagram of the fixture set of the first embodiment of the present invention;

[0039] Figure 2A It is an exploded schematic diagram of the fixture set of the first embodiment of the present invention and the workpiece thereon;

[0040] Figure 2B It is Figure 2A A schematic diagram of the fixture set and the workpiece shown from another perspective;

[0041] Figure 3 It is a cross-sectional schematic diagram of the fixture set of the first embodiment of the present invention and the workpiece thereon before preparing the capillary structure;

[0042] Figure 4 It is a three-dimensional schematic diagram of the workpiece of the first embodiment of the present invention after completing the preparation of the three-dimensional capillary structure;

[0043] Figure 5 It is a three-dimensional schematic diagram of the fixture set of the second embodiment of the present invention;

[0044] Figure 6A It is an exploded schematic diagram of the fixture set of the second embodiment of the present invention and the workpiece thereon;

[0045] Figure 6B It is Figure 6A A schematic diagram of the fixture set and the workpiece shown from another perspective;

[0046] Figure 7Schematic cross-sectional view of the workpiece in the second embodiment of the present invention before the capillary structure is prepared on the plate body and the tube body;

[0047] Figure 8 Schematic cross-sectional view of the jig set in the second embodiment of the present invention and the workpiece thereon before powder injection;

[0048] Figure 9 Schematic cross-sectional view of the jig set in the second embodiment of the present invention and the workpiece thereon after powder injection; and

[0049] Figure 10 Three-dimensional schematic view of the workpiece in the second embodiment of the present invention after the three-dimensional capillary structure is prepared.

[0050] Explanation of reference numerals: jig sets 1, 1'; workpieces 10, 11; three-dimensional isothermal plate housing structures 12, 13; three-dimensional capillary structures 103, 113; plate bodies 101, 111; tube bodies 102, 112; bent tube bodies 114; capillary structures of bent tube bodies 115; bases 20, 20'; bearing surfaces 200, 200'; second positioning posts 200C; channels 201, 201'; openings of channels 201P; bent tube through grooves 202; openings of bent tube through grooves 202P; templates 30, 30'; first surfaces of templates 301; recesses 3011; frame portions 3012; first positioning holes 30120; second positioning holes 30121; second surfaces of templates 302, 302'; powder injection grooves 3010, 3010'; powder injection ports 3010P, 3010P'; mold cavities 302C; mold chambers 302C'; annular walls 302W; first through holes of templates 303, 303'; second through holes of templates 304, 304'; first positioning members / second positioning members 40; perforations 400; columnar segments 401; flange segments 402; center rods 50; interference rods 60; cover plates 70, 70'; first positioning posts 70C; third through holes 701; fourth through holes 702; first ends 601; second ends 602; first openings of plate bodies 101P, 111P; second openings of plate bodies 112P; first surfaces of plate bodies 101U, 111U; second surfaces of plate bodies 101B, 111B. Detailed Description of the Invention

[0051] The above objects, structures and functional characteristics of the present invention will be described with reference to the preferred embodiments shown in the accompanying drawings.

[0052] Please refer to Figure 1 、 Figure 2A and Figure 2B . The present invention provides a jig set 1, which includes a base 20, a template 30, at least one first positioning member 40, at least one center rod 50 and a cover plate 70.

[0053] As shown in Figure 2A 、Figure 2B As shown, in this embodiment, the base 20 has a bearing surface 200 for supporting the plate body 101 of the workpiece. At least two (for example, three) second positioning posts 200C can be provided on the bearing surface 200 for cooperating with at least two (for example, three) second positioning holes 30121 of the frame portion 3012 of the template 30, so that the template 30 can be stably and accurately positioned on the base 20. At least one vertical channel 201 is provided in the base 20. The channel 201 has an opening 201P provided on the bearing surface 200. The channel 201 is used to accommodate at least one tube body 102 of the workpiece 10.

[0054] As Figure 2B shown, in this embodiment, the channel 201 also has another opening at the bottom of the base 20, that is, the channel 201 can be a through groove penetrating the base 20. However, in other embodiments, the channel 201 can also have only one opening 201P provided on the bearing surface 200 of the base, and the bottom is a closed design. The cross-sectional shape of the channel 201 is circular to match the outer diameter of the tube body 102, ensuring that the tube body 102 can be adaptively accommodated inside it. However, the cross-sectional shape of the channel 201 is not limited to circular. According to different application requirements or manufacturing process requirements, its cross-sectional shape can also be designed as square, polygonal, or an irregular shape with a curvature, etc., to adapt to specific structural or functional requirements.

[0055] As Figure 2A 、 2BAs shown in the figure, the template 30 has a first surface 301 and a second surface 302 which are oppositely arranged. A concave portion 3011 and a frame portion 3012 surrounding the concave portion 3011 can be provided on the first surface 301. A cavity 302C is recessed on the second surface 302. A powder injection groove 3010 is provided on the surface of the concave portion 3011. A powder injection port 3010P is provided at the bottom of the powder injection groove 3010. The powder injection groove 3010 is communicated with the cavity 302C through the powder injection port 3010P. In this embodiment, at least two (for example, three) first positioning holes 30120 are provided on the long side of the frame portion 3012, and at least two (for example, three) second positioning holes 30121 are provided on the short side of the frame portion 3012. The first positioning holes 30120 are used to cooperate with the first positioning posts 70C on the cover plate 70 to ensure that the cover plate 70 can be accurately positioned on the template 30. The second positioning holes 30121 are used to cooperate with the second positioning posts 200C on the bearing surface 200 of the base 20 to realize the stable installation and accurate positioning of the template 30 and the base 20. In addition, at least one first through hole 303 is provided in the area of the template 30 corresponding to the cavity 302C. The first through hole 303 corresponds to (is aligned with) the opening 201P of the channel 201 on the base 20, so as to allow the center rod 50 to pass through the template 30 and extend into the interior of the tube body 102 accommodated in the channel 201. At the same time, the first through hole 303 also enables the first positioning member 40 to be firmly inserted therein, thereby indirectly positioning the center rod 50 accurately at the central position of the tube body 102. When the template 30 covers the workpiece 10 placed on the base 20 with its second surface 302, the template 30 can jointly form a molding space with the workpiece 10 through its cavity 302C for the subsequent molding of the filling material and the capillary structure.

[0056] Please refer to Figure 3 、 Figure 4 as shown.

[0057] As Figure 3 shown, the plate body 101 of the workpiece is placed on the base 20, and the tube body 102 of the workpiece is accommodated in the channel 201 of the base 20. In addition, the template 30 covers the plate body 101 of the workpiece placed on the base 20 with its second surface 302 provided with the cavity 302C.

[0058] The first positioning member 40 is detachably inserted into the first through hole 303 of the template 30. In this embodiment, the first positioning member 40 is a sleeve, which includes a cylindrical section 401 and a flange section 402, and is provided with a through hole 400 penetrating through the cylindrical section 401 and the flange section 402. The through hole 400 is aligned with the opening 201P of the channel 201, and the inner diameter of the through hole 400 is smaller than the inner diameter of the tube body 102. The cylindrical section 401 is inserted into the first through hole 303 of the template 30, and its outer diameter matches the inner diameter of the first through hole 303, ensuring that the first positioning member 40 can be stably installed in the first through hole 303; the flange section 402 is clamped on the first surface 301 of the template 30 to provide support. In addition, the inner diameter of the cylindrical section 401 matches the outer diameter of the column of the central rod 50, ensuring that the central rod 50 can be accurately inserted and positioned at the central position inside the tube body 102 under the guidance of the first positioning member 40, thereby ensuring the symmetry of the powder filling gap.

[0059] The central rod 50 is used to pass through the through hole 400 of the first positioning member 40 inserted into the first through hole 303 of the template 30 and further extend into the interior of the tube body 102. The cross-sectional shape of the column of the central rod 50 matches the cross-sectional shape of the through hole 400 of the first positioning member 40. In this embodiment, the cross-sectional shapes of both are circular and the sizes are similar, ensuring that the central rod 50 can pass through the first positioning member 40 and maintain stable positioning, avoiding the deviation of the central rod 50. The outer diameter of the column of the central rod 50 is smaller than the inner diameter of the tube body 102, so that a uniform annular gap can be formed between the central rod 50 and the inner wall of the tube body 102. This gap is used to fill powder materials, such as copper metal powder, to realize the subsequent formation of the capillary structure.

[0060] In this embodiment, the column structure of the central rod 50 is a cylinder. In other embodiments, to meet different requirements, the cross-sectional shapes of the column of the central rod 50 and the through hole 400 of the first positioning member 40 can also be designed as square, polygonal or irregular shapes with arcs, etc., to meet different requirements.

[0061] The cover plate 70 is provided with at least one third through hole 701 corresponding (aligned) to the first through hole 303 of the template 30, allowing the central rod 50 to pass through the third through hole 701 of the cover plate 70 and the first through hole 303 of the template 30 and extend into the interior of the tube body 102 when the cover plate 70 is covered. At the same time, the cover plate 70 is also provided with at least one fourth through hole 702 corresponding (aligned) to the powder injection groove 3010 of the template 30, so that the powder material can be injected from the cover plate 70 into the powder injection groove 3010 of the template 30.

[0062] In addition, the cover plate 70 is provided with at least two (such as two or three) first positioning posts 70C on its surface facing the base 20. The first positioning posts 70C are used to cooperate with the first positioning holes 30120 on the frame portion 3012 of the template 30, so as to achieve the stable installation and accurate alignment of the cover plate 70 and the template 30. The cover plate 70 can also effectively guide and protect related components.

[0063] The powder material can be injected from the powder injection groove 3010 on the first surface 301 of the template 30 and filled into the space jointly formed by the mold cavity 302C and the plate body 101 of the workpiece through the powder injection port 3010P, and then filled into the gap between the tube body 102 and the central rod 50. In addition, in the case where the cover plate 70 is provided, the powder material can also be injected into the powder injection groove 3010 from the fourth through hole 702 of the cover plate 70, and then further filled into the mold cavity 302C and the gap in the tube body 102 that is not occupied by the central rod 50 through the powder injection port 3010P. The powder material is filled on the first surface 101U of the plate body 101 of the workpiece 10 and is evenly distributed on the inner wall of the tube body 102. Subsequently, under the high-temperature sintering process at about 700°C to 900°C, a continuous and complete three-dimensional capillary structure 103 can be formed in one go (integrally formed), ensuring the stability and efficient heat conduction performance of the capillary structure.

[0064] As Figure 4 shown, after the workpiece 10 goes through the above processes and high-temperature sintering and other procedures, a three-dimensional heat pipe housing structure 12 is formed. The three-dimensional heat pipe housing structure 12 can be combined with another corresponding housing structure (not shown in the figure) into a complete three-dimensional heat pipe (not shown in the figure) through, for example, a welding process. The three-dimensional heat pipe housing structure 12 includes a plate body 101, at least one tube body 102, and a three-dimensional capillary structure 103. The plate body 101 has a first surface 101U and a second surface 101B that are oppositely arranged, and is provided with at least one first opening 101P. One end of the tube body 102 is arranged on the second surface 101B of the plate body 101 and is communicated with it through the first opening 101P of the plate body 101. The other end of the tube body 102 is a closed structure, so as to jointly form a working fluid channel (not shown in the figure) of the three-dimensional heat pipe with the plate body 101 and the corresponding housing structure.

[0065] The three-dimensional capillary structure 103 covers the first surface 101U of the plate body 101 and continuously extends to the inner wall surface of the tube body 102, realizing a continuous and complete three-dimensional capillary structure, and effectively improving the heat dissipation effect of the overall structure of the three-dimensional heat pipe.

[0066] In the first embodiment of the present invention, by means of the above technical solution, the central rod 50 is accurately positioned at the center of the tube body 102 by using the first positioning member 40, ensuring a uniform powder filling gap is formed between the central rod 50 and the inner wall of the tube body 102. At the same time, through the molding space jointly formed by the mold cavity 302C of the template 30 and the workpiece 10, the accurate filling of the powder material is achieved, and the forming of the overall capillary structure is completed in one step through the sintering process. This technical solution effectively solves problems such as incomplete lap of the capillary structure of the traditional three-dimensional heat pipe, cumbersome manufacturing process, and easy damage to the capillary structure, greatly improving the reflux efficiency of the working fluid, simplifying the manufacturing process, and significantly improving the heat dissipation performance and product reliability.

[0067] Please refer to Figure 5 、 Figure 6A 、 Figure 6B and Figure 7 as shown.

[0068] As Figure 5 shown in Figure 6A and

[0069] shown in Figure 6A 、 Figure 6B shown in

[0070] The differences between the second embodiment and the first embodiment of the present invention will be described in detail below. The structures and configurations of the remaining components are the same as those in the first embodiment, and the relevant details have been described in the foregoing description and will not be repeated here.

[0071] The fixture set 1' of the second embodiment of the present invention is used to prepare a three-dimensional capillary structure on a workpiece 11.

[0072] As Figure 7 shown, the workpiece 11 includes a plate body 111 and at least one tube body 112 and at least one bent tube body 114 provided on the plate body 111. The plate body 111 has a first surface 111U and a second surface 111B which are oppositely arranged, and is provided with at least one first opening 111P and at least one second opening 112P. The tube body 112 is disposed on the second surface 111B of the plate body 111 and communicates with it through the first opening 111P of the plate body 111. The bent tube body 114 is also disposed on the second surface 111B of the plate body 111 and communicates with it through the second opening 112P of the plate body 111. The first surface 111U of the plate body 111 and the interior of the tube body 112 have not yet formed a capillary structure, while a capillary structure 115 has been pre-set on the inner wall of the bent tube body 114. Specifically, the fixture set 1' is used to form a continuous three-dimensional capillary structure on the first surface 111U of the plate body 111 of the workpiece 11 and the inner wall of the tube body 112 at one time, and perform seamless connection (butt joint) with the capillary structure 115 pre-set on the inner wall of the bent tube body 114.

[0073] Please refer to Figure 8 、 Figure 9 shown.

[0074] As Figure 8 、 Figure 9 shown, the second positioning member 40 is inserted into the second through hole 304' of the template 30'. Since the capillary structure 115 has been pre-set on the inner wall of the bent tube body 114, an interference rod 60 is needed to prevent the powder material from entering the interior of the bent tube body 114 during the preparation process.

[0075] In this embodiment, the interference rod 60 can be, for example, a member with a taper, which has a first end 601 and a second end 602. The interference rod 60 gradually narrows from the first end 601 to the second end 602, forming a conical structure. The outer diameter of the first end 601 of the interference rod 60 is larger than the inner diameter of the cylindrical section 401 of the second positioning member 40, so that it can be clamped in the second positioning member 40. The outer diameter of the second end 602 of the interference rod 60 is smaller than the inner diameter of the cylindrical section 401 of the second positioning member 40 and smaller than the inner diameter of the bent tube body 114 provided with the capillary structure 115, so that it can pass through the cylindrical section 401 of the second positioning member 40 and enter the interior of the bent tube body 114.

[0076] The interference rod 60 is configured to pass through the through-hole 400 of the second positioning member 40 inserted into the second through-hole 304' of the template 30' and extend into the interior of the bent tube body 114. Due to its conical structure, the section between the first end 601 and the second end 602 of the interference rod 60 can enter the interior of the bent tube body 114, and the outer diameter of this section matches the inner diameter of the bent tube body 114 where the capillary structure 115 is pre-set, so as to seal the area inside the bent tube body 114 where the capillary structure 115 has been set, effectively preventing the powder material from entering the interior of the bent tube body 114, while allowing the powder material to be laid on the peripheral area without the pre-set capillary structure at the joint between the bent tube body 114 and the plate body 111. With this design, the newly prepared three-dimensional capillary structure 113 can be seamlessly connected (joined) to the capillary structure 115 pre-set on the inner wall of the bent tube body 114, thus ensuring the continuity and integrity of the capillary structure and further improving the performance of the overall structure.

[0077] Please refer to Figure 10 as shown.

[0078] As Figure 10 shown, after the workpiece 11 undergoes the above processes and processing procedures such as high-temperature sintering, a three-dimensional heat pipe housing structure 13 is formed. The three-dimensional heat pipe housing structure 13 includes a plate body 111, at least one tube body 112, at least one bent tube body 114, and a three-dimensional capillary structure 113.

[0079] The plate body 111 has a first surface 111U and a second surface 111B arranged oppositely, and is provided with at least one first opening 111P and at least one second opening 112P. One end of the tube body 112 is arranged on the second surface 111B of the plate body 111 and is communicated with it through the first opening 111P of the plate body 111, and the other end of the tube body 112 is a closed structure; one end of the bent tube body 114 is also arranged on the second surface 111B of the plate body 111 and is communicated with it through the second opening 112P of the plate body 111, and the other end of the bent tube body 114 is also a closed structure, so as to jointly form a working fluid channel (not shown in the figure) of the three-dimensional heat pipe with the plate body 111 and the corresponding housing structure (not shown in the figure).

[0080] The three-dimensional capillary structure 113 covers the first surface 111U of the plate body 111, seamlessly extends to the inner wall surface of the tube body 112, and is precisely connected to the capillary structure pre-set on the inner wall of the bent tube body 114, realizing a continuous and complete three-dimensional capillary structure 113, effectively improving the overall heat conduction performance and heat equalization effect, thus meeting the requirements of efficient heat dissipation and significantly enhancing the functional reliability of the product.

[0081] In the second embodiment of the present invention, by means of the above technical solution, in addition to accurately positioning the central rod 50 at the center of the tube body 112 by using the first positioning member 40 to ensure a uniform powder filling gap is formed between the central rod 50 and the inner wall of the tube body 112, and realizing the precise filling of the powder material between the inner wall of the tube body 112 and the cavity 302C' of the template 30 through the molding space jointly defined by the cavity 302C' of the template 30 and the workpiece 11, further, by means of the conical structure of the interference rod 60, a part of it is inserted into the bent tube body 114 which has been pre-set with the capillary structure 115 inside. By contacting the capillary structure 115 on the inner wall of the bent tube body 114 through the interference rod 60, an interference effect is generated to prevent the powder filling material from entering the inside of the bent tube body 114, accurately limiting it to the designed area and avoiding secondary powder filling and sintering of the capillary structure 115. At the same time, this technical solution realizes the seamless connection between the newly prepared three-dimensional capillary structure 113 and the pre-set capillary structure 115 on the inner wall of the bent tube body 114, effectively improving the integrity and continuity of the capillary structure, and further enhancing the heat transfer performance and uniformity effect of the overall structure.

[0082] The above has described the present invention in detail. However, what is described above is only a preferred embodiment of the present invention, and it should not be used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made in accordance with the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A fixture assembly for forming a three-dimensional capillary structure on a workpiece, the workpiece having a plate and at least one tube disposed on the plate, characterized in that: The fixture set includes: A base having a bearing surface, wherein at least one channel is disposed in the base, and the channel has an opening disposed on the bearing surface; A template, having a first surface and a second surface arranged opposite to each other, the first surface being provided with a powder injection groove, the second surface being provided with a mold cavity, the template being provided with at least one first through hole in a region corresponding to the mold cavity, the first through hole corresponding to the opening of the channel, the template being used to cover the workpiece placed on the base with the second surface; at least one first positioning member, the first positioning member is provided with a through hole and is detachably inserted into the first through hole; and At least one center rod is used to pass through the first positioning piece inserted in the first through hole and extend into the interior of the tube body accommodated in the channel. The outer diameter of the center rod is smaller than the inner diameter of the tube body so that a gap is formed between the center rod and the inner wall of the tube body for filling a material.

2. The fixture assembly according to claim 1, characterized in that: A powder injection port is arranged at the bottom of the powder injection groove, and the powder injection groove is communicated with the mold cavity through the powder injection port.

3. The fixture assembly according to claim 1, characterized in that: The first surface of the template is provided with a concave portion and a frame portion surrounding the concave portion, the powder injection groove is arranged on the surface of the concave portion, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

4. The fixture assembly according to claim 3, characterized in that: It also includes a cover plate for covering the template, the cover plate is provided with at least a third through hole corresponding to the first through hole and a fourth through hole corresponding to the powder injection groove, and the cover plate is provided with at least two first positioning columns for cooperating with the at least two first positioning holes of the frame.

5. The fixture assembly according to claim 3, characterized in that: At least two second positioning posts are disposed on the bearing surface and are used to cooperate with at least two second positioning holes of the frame.

6. The fixture assembly according to claim 1, characterized in that: The first positioning member includes a flange section and a column section, the through hole runs through the flange section and the column section, the column section is used to be inserted into the first through hole of the template, and the flange section is used to be clamped on the first surface of the template.

7. The fixture assembly according to claim 6, characterized in that: The outer diameter of the column segment matches the inner diameter of the first through hole of the template, and the inner diameter of the column segment matches the outer diameter of the column of the center rod.

8. A jig assembly for forming a three-dimensional capillary structure on a workpiece, the workpiece comprising a plate body and at least one tube body and at least one bent tube body disposed on the plate body, the inner wall of the bent tube body being provided with a capillary structure, characterized in that: The fixture set includes: A base having a bearing surface, wherein at least one channel and at least one elbow groove are provided in the base, wherein the channel and the elbow groove each have an opening, and the openings of the channel and the elbow groove are both provided on the bearing surface; A template, having a first surface and a second surface arranged opposite to each other, the first surface being provided with a powder injection groove, the second surface being provided with a mold cavity, the template being provided with at least one first through hole and at least one second through hole in a region corresponding to the mold cavity, the first through hole corresponding to the opening of the channel, the second through hole corresponding to the opening of the elbow through groove, the template being used to cover the workpiece placed on the base with the second surface; At least one first positioning member and at least one second positioning member, each of the first positioning member and the second positioning member is provided with a through hole, and is detachably inserted into the first through hole and the second through hole, respectively; at least one center rod, the center rod being used to pass through the first positioning member inserted into the first through hole and extending into the bottom of the tube accommodated in the channel, the outer diameter of the center rod being smaller than the inner diameter of the tube, so that a gap is formed between the center rod and the inner wall of the tube for filling a material; and At least one interference rod, which is a cone structure, is used to pass through the second positioning piece inserted in the second through hole and extend into the bent tube body accommodated in the bent tube groove, and contact the capillary structure of the bent tube body through the cone structure to prevent the material from entering the inside of the bent tube body.

9. The fixture assembly according to claim 8, characterized in that: A powder injection port is arranged at the bottom of the powder injection groove, and the powder injection groove is communicated with the mold cavity through the powder injection port.

10. The fixture assembly according to claim 8, characterized in that: A ring wall is arranged on the second surface of the template, and the ring wall surrounds and forms the mold cavity.

11. The fixture assembly according to claim 8, characterized in that: The first surface of the template is provided with a concave portion and a frame portion surrounding the concave portion, the powder injection groove is arranged on the surface of the concave portion, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

12. The fixture assembly according to claim 10, characterized in that: It also includes a cover plate for covering the template, and the cover plate is provided with at least two first positioning columns for matching with the at least two first positioning holes of the frame.

13. The fixture assembly according to claim 11, characterized in that: At least two second positioning posts are disposed on the bearing surface and are used to cooperate with at least two second positioning holes of the frame.

14. The fixture assembly according to claim 8, characterized in that: The second positioning member includes a flange section and a column section, the through hole runs through the flange section and the column section, the column section is used to be inserted into the second through hole of the template, and the flange section is used to be clamped on the first surface of the template.

15. The fixture assembly according to claim 14, characterized in that: The outer diameter of the column segment matches the inner diameter of the second through hole of the template.

16. A three-dimensional temperature homogenizing plate shell structure prepared by the fixture assembly according to any one of claims 8 to 15, characterized in that: Include: A plate body having a first surface and a second surface arranged opposite to each other, and the plate body is provided with at least one first opening; at least one tube, one end of which is disposed on the second surface of the plate and communicated with the plate through the first opening, and the other end of which is a closed structure; and A three-dimensional capillary structure is arranged on the first surface of the plate body and continuously extends to the inner wall surface of the tube body through the first opening.

17. The three-dimensional temperature homogenizing plate housing structure according to claim 16, characterized in that: It also includes at least one bent tube body, the plate body is also provided with at least one second opening, one end of the bent tube body is arranged on the second surface of the plate body and is connected with the second opening of the plate body, and the other end of the bent tube body is a closed structure; the three-dimensional capillary structure is arranged on the first surface of the plate body, extends to the inner wall surface of the tube body through the first opening, and is connected with the capillary structure of the bent tube body through the second opening.

Images