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

Abstract

The utility model 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 utility model relates to a jig set, especially to a jig set for preparing a three-dimensional uniform temperature plate capillary structure and a three-dimensional uniform temperature plate shell structure prepared by the jig set. BACKGROUND

[0002] With the continuous improvement of the performance of electronic equipment, its heat generation also increases. Three-dimensional uniform temperature plate has become one of the high-efficiency heat management solutions due to its excellent heat dissipation performance, and is widely used in various high heat flux density scenes. The heat dissipation efficiency of the three-dimensional uniform temperature plate 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 return of the working fluid, so as to realize stable and efficient heat conduction.

[0003] The traditional manufacturing method of three-dimensional uniform temperature plate usually separately makes the capillary structures of the pipe body and the uniform temperature plate body, and then combines them by welding or bonding. However, this method faces many challenges.

[0004] Firstly, since the capillary structures of the pipe body and the uniform temperature plate body are made separately, it is difficult to achieve seamless connection during the combination process, and discontinuous areas often form between the capillary structures of the two, thereby significantly reducing the return efficiency of the working fluid. Secondly, the combination of the capillary structures needs to go through processes such as welding, bonding or secondary sintering, which not only is cumbersome, but also may damage the capillary structure and further reduce its performance. In addition, the materials used in the welding or bonding process may increase the thermal resistance at the joint, thereby reducing the overall heat conduction efficiency and directly affecting the heat dissipation performance of the three-dimensional uniform temperature plate.

[0005] Therefore, how to realize the one-time forming of the capillary structures of the pipe body and the uniform temperature plate body in the three-dimensional uniform temperature plate, and ensure the integrity of the capillary structure to improve the return efficiency of the working fluid, has become a key issue to be solved in the field of three-dimensional uniform temperature plate. SUMMARY

[0006] To solve the above technical problems, the utility model discloses a purpose is in on the three -dimensional even temperature board shell structure of jig group and preparation. The utility model discloses through the die cavity of template and the workpiece of processing commonly form the space of forming a die, and through the first positioning piece with the pipe body center of workpiece center accurate positioning, make the even filling powder gap between center stick and pipe body inner wall, to realize the filling of powder material. Powder material can be injected by the powder injection groove of template, fill in the space of forming a die that the die cavity and the plate body of workpiece commonly form and the gap not being occupied in the pipe body of center stick. By this, the continuous uninterrupted three -dimensional capillary structure is formed on the workpiece plate body surface and pipe body inner wall through sintering procedure, realizes the capillary structure system of plate body surface and pipe body inner wall one -time integrated molding. This technical scheme ensures the continuity and consistency of capillary structure, improves the reflux efficiency of working fluid, and simplifies the manufacturing process, improves the heat dissipation performance and product reliability of three -dimensional even temperature board.

[0007] The utility model discloses a technical scheme for:

[0008] A jig set is used to form a three-dimensional capillary structure on a workpiece, the workpiece having a plate body and at least one pipe body disposed on the plate body, characterized in that the jig set comprises:

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

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

[0011] At least one first positioning piece, the first positioning piece being provided with a through hole and being detachably inserted into the first through hole; and

[0012] At least one center rod, the center rod being used to pass through the first positioning piece inserted into the first through hole and extend into the interior of the pipe body accommodated in the channel, the columnar outer diameter of the center rod being smaller than the inner diameter of the pipe body, so that a gap is formed between the center rod and the inner wall of the pipe body for filling a material.

[0013] The jig set, wherein the powder injection groove is provided with a powder injection opening at the bottom, and the powder injection groove is in communication with the die cavity through the powder injection opening.

[0014] The jig set, wherein the first surface of the template is provided with a recess and a frame portion surrounding the recess, the powder injection groove is disposed on the surface of the recess, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

[0015] The jig set, wherein: a cover plate is further included for covering on the template, the cover plate is provided with at least one third through hole corresponding to the first through hole and at least one 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 part.

[0016] The jig set, wherein: the bearing surface is provided with at least two second positioning columns for cooperating with at least two second positioning holes of the frame part.

[0017] The jig set, wherein: the first 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 first through hole of the template, and the flange section is used for being clamped on the first surface of the template.

[0018] The jig set, wherein: an outer diameter of the column section matches an inner diameter of the first through hole of the template, and an inner diameter of the column section matches an outer diameter of a column of the center rod.

[0019] A jig set for forming a three-dimensional capillary structure on a workpiece, the workpiece having a plate body and at least one tube body and at least one bent tube body arranged on the plate body, an inner wall of the bent tube body being provided with a capillary structure, the jig set comprising:

[0020] a base having a bearing surface, the base being provided with at least one channel and at least one bent tube through groove, each of the channel and the bent tube through groove having an opening, and the openings of the channel and the bent tube through groove being arranged on the bearing surface;

[0021] a template having a first surface and a second surface arranged oppositely, the first surface being provided with a powder injection groove, and 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, and the second through hole corresponding to the opening of the bent tube through groove, and the template being used for covering the workpiece 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 being provided with a through hole and being detachably inserted into the first through hole and the second through hole, respectively;

[0023] at least one center rod, the center rod being used for penetrating the first positioning member inserted into the first through hole and extending into a bottom of the tube body accommodated in the channel, an outer diameter of a column of the center rod being smaller than an inner diameter of the tube body, so that a gap is formed between the center rod and an inner wall of the tube body for filling a material; and

[0024] At least one interference rod, the interference rod is a conical structure, the interference rod is used for penetrating through a second positioning piece arranged in the second through hole and extending into a bent pipe body accommodated in the bent pipe through groove, and the conical structure is in contact with a capillary structure of the bent pipe body to block the material from entering the inside of the bent pipe body.

[0025] The jig set, wherein the powder injection groove is provided with a powder injection port, and the powder injection groove is communicated with the mold cavity through the powder injection port.

[0026] The jig set, wherein the second surface of the mold plate is provided with an annular wall, and the annular wall surrounds to form the mold cavity.

[0027] The jig set, wherein the first surface of the mold plate is provided with a recess and a frame portion surrounding the recess, the powder injection groove is arranged on the surface of the recess, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

[0028] The jig set, wherein: further comprising a cover plate used for covering the mold plate, the cover plate is provided with at least two first positioning columns used for cooperating with the at least two first positioning holes of the frame portion.

[0029] The jig set, wherein the bearing surface is provided with at least two second positioning columns used for cooperating with the at least two second positioning holes of the frame portion.

[0030] The jig set, wherein the second positioning piece 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 arranged in the second through hole of the mold plate, and the flange section is used for being clamped on the first surface of the mold plate.

[0031] The jig set, wherein the outer diameter of the column section matches the inner diameter of the second through hole of the mold plate.

[0032] A three-dimensional uniform temperature plate shell structure prepared by the jig set, characterized in that, comprising:

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

[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 arranged on the first surface of the plate body and continuously extended to the inner wall surface of the pipe body through the first opening.

[0036] The three-dimensional uniform temperature plate shell structure further comprises at least one bent pipe body, the plate body is 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] The embodiment of the utility model discloses by the above technical scheme, utilize first positioning piece and center rod are located in the center of the pipe body accurately, make the even powder gap between center rod and pipe body inner wall, and by the die cavity of the template and the workpiece jointly formed the molding space, realize the even filling of powder material on the workpiece plate body surface and the inner wall of pipe body, thereby realize the one-time integrated molding of pipe body capillary structure and plate body capillary structure, solve the traditional three-dimensional uniform temperature plate capillary structure lap incomplete, manufacturing process is complicated and capillary structure is damaged and other problems, significantly improve the reflux efficiency of working fluid. Meanwhile, simplify the process step, and further improve the heat dissipation performance and product reliability of three-dimensional uniform temperature plate. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is the three-dimensional schematic view of the jig set of the first embodiment of the utility model;

[0039] Figure 2A It is the exploded schematic view of the jig set and the workpiece thereon of the first embodiment of the utility model;

[0040] Figure 2B It is Figure 2A It is the schematic view of the jig set and the workpiece thereon at another viewing angle shown in the figure;

[0041] Figure 3 It is the cross-sectional schematic view of the jig set and the workpiece thereon of the first embodiment of the utility model before preparing the capillary structure;

[0042] Figure 4 It is the three-dimensional schematic view of the workpiece of the first embodiment of the utility model after completing the preparation of three-dimensional capillary structure;

[0043] Figure 5 It is the three-dimensional schematic view of the jig set of the second embodiment of the utility model;

[0044] Figure 6A It is the exploded schematic view of the jig set and the workpiece thereon of the second embodiment of the utility model;

[0045] Figure 6B It is Figure 6A It is the schematic view of the jig set and the workpiece thereon at another viewing angle shown in the figure;

[0046] Figure 7The cross-sectional view schematic diagram of the workpiece in the second embodiment of the utility model before the capillary structure preparation on the plate body and the pipe body is shown in the figure.

[0047] Figure 8 The cross-sectional view schematic diagram of the jig set of the second embodiment of the utility model and the workpiece on it before powder injection is shown in the figure.

[0048] Figure 9 The cross-sectional view schematic diagram of the jig set of the second embodiment of the utility model and the workpiece on it after powder injection is shown in the figure.

[0049] Figure 10 The three-dimensional view schematic diagram of the workpiece after the three-dimensional capillary structure preparation of the second embodiment of the utility model is shown in the figure.

[0050] Mark explanation: jig set 1, 1'; workpiece 10, 11; three-dimensional uniform plate shell structure 12, 13; three-dimensional capillary structure 103, 113; plate body 101, 111; pipe body 102, 112; bent pipe body 114; bent pipe body capillary structure 115; base 20, 20'; bearing surface 200, 200'; second positioning column 200C; channel 201, 201'; channel opening 201P; elbow pipe through slot 202; elbow pipe through slot opening 202P; template 30, 30'; first surface of template 301; recess 3011; frame part 3012; first positioning hole 30120; second positioning hole 30121; second surface of template 302, 302'; powder injection groove 3010, 3010'; powder injection port 3010P, 3010P'; mold cavity 302C; mold cavity 302C'; ring wall 302W; first through hole of template 303, 303'; second through hole of template 304, 304'; first positioning member / second positioning member 40; perforation 400; column segment 401; flange segment 402; center rod 50; interference rod 60; cover plate 70, 70'; first positioning column 70C; third through hole 701; fourth through hole 702; first end 601; second end 602; first opening of plate body 101P, 111P; second opening of plate body 112P; first surface of plate body 101U, 111U; second surface of plate body 101B, 111B. DETAILED DESCRIPTION

[0051] The above-mentioned purposes of the utility model and the characteristics of its structure and function will be described according to the preferred embodiments of the accompanying drawings.

[0052] Please refer to Figure 1 , Figure 2A And Figure 2B The utility model provides a jig set 1, including 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] AsFigure 2A , Figure 2B As shown, in this embodiment, the base 20 has a bearing surface 200 for supporting the plate 101 of the workpiece. At least two (e.g., three) second positioning posts 200C may be provided on the bearing surface 200 for engaging with at least two (e.g., 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 inside the base 20. The channel 201 has an opening 201P on the bearing surface 200. The channel 201 is used to accommodate at least one tube 102 of the workpiece 10.

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

[0055] like Figure 2A , 2BAs shown in the figure, the template 30 has a first surface 301 and a second surface 302 oppositely arranged. The first surface 301 can be provided with a recess 3011 and a frame 3012 surrounding the recess 3011, and the second surface 302 is provided with a mold cavity 302C. The surface of the recess 3011 is provided with a powder injection groove 3010, and the bottom of the powder injection groove 3010 is provided with a powder injection port 3010P. The powder injection groove 3010 is connected to the mold cavity 302C through the powder injection port 3010P. In this embodiment, at least two (for example, three) first positioning holes 30120 are arranged on the long side of the frame 3012, and at least two (for example, three) second positioning holes 30121 are arranged on the short side of the frame 3012. The first positioning holes 30120 are used to cooperate with the first positioning columns 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 columns 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, the template 30 is provided with at least one first through hole 303 corresponding to the mold cavity 302C. The first through hole 303 corresponds (aligns) with the opening 201P of the channel 201 on the base 20, thereby allowing the center rod 50 to pass through the template 30 and extend into the pipe body 102 accommodated in the channel 201. At the same time, the first through hole 303 also allows the first positioning member 40 to be stably inserted therein, thereby indirectly accurately positioning the center rod 50 at the center position of the pipe body 102. When the template 30 is placed on the workpiece 10 on the base 20 with its second surface 302 covering the workpiece 10, the template 30 can form a mold space together with the workpiece 10 through the mold cavity 302C, for subsequent filling of materials and formation of capillary structures.

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

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

[0058] The first positioning member 40 is detachably inserted into the first through hole 303 of the template 30. In the embodiment, the first positioning member 40 is a sleeve, which includes a column segment 401 and a flange segment 402, and is provided with a through hole 400 penetrating the column segment 401 and the flange segment 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 pipe body 102. The column segment 401 is inserted into the first through hole 303 of the template 30, and the outer diameter of the column segment 401 matches the inner diameter of the first through hole 303, so that the first positioning member 40 can be stably installed in the first through hole 303; the flange segment 402 is clamped on the first surface 301 of the template 30 to provide support. In addition, the inner diameter of the column segment 401 matches the outer diameter of the column of the center rod 50, so that the center rod 50 can be accurately inserted and positioned at the center position in the pipe body 102 under the guidance of the first positioning member 40, thereby ensuring the symmetry of the powder filling gap.

[0059] The center 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 extends into the interior of the pipe body 102. The cross-sectional shape of the column of the center rod 50 matches the cross-sectional shape of the through hole 400 of the first positioning member 40. In the embodiment, the cross-sectional shapes of both are circular, and the sizes are similar, so that the center rod 50 can pass through the first positioning member 40 and be stably positioned, avoiding the deviation of the center rod 50. The outer diameter of the column of the center rod 50 is smaller than the inner diameter of the pipe body 102, so that a uniform annular gap can be formed between the center rod 50 and the inner wall of the pipe body 102, which is used to fill the powder material, such as copper powder, to realize the subsequent formation of capillary structure.

[0060] In the embodiment, the column structure of the center rod 50 is a cylinder. In other embodiments, the cross-sectional shapes of the column of the center rod 50 and the through hole 400 of the first positioning member 40 can also be designed as square, polygonal or irregular shape with curvature, to adapt to different needs.

[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, so that the center rod 50 can 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 pipe body 102, even if the cover plate 70 is on the cover. 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 (for example, two or three) first positioning posts 70C on the surface thereof facing the base 20, which are used to cooperate with the first positioning holes 30120 on the frame 3012 of the mold plate 30, so as to realize the stable installation and accurate alignment of the cover plate 70 and the mold plate 30. The cover plate 70 can also effectively guide and protect the related components.

[0063] The powder material can be injected from the powder injection groove 3010 on the first surface 301 of the mold plate 30 and filled into the space 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 pipe body 102 and the center rod 50. In addition, in the case of providing the cover plate 70, the powder material can also be injected from the fourth through hole 702 of the cover plate 70 into the powder injection groove 3010, so as to be further filled into the mold cavity 302C and the gap not occupied by the center rod 50 in the pipe body 102 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 uniformly distributed on the inner wall of the pipe body 102, and then under the high-temperature sintering process at about 700-900℃, a continuous and complete three-dimensional capillary structure 103 can be formed at one time (integrally formed), which ensures the stability and high-efficiency heat conduction performance of the capillary structure.

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

[0066] The first embodiment of the utility model borrows the above technical scheme, utilize first positioning piece 40 with center bar 50 is positioned in the center of pipe body 102 accurately, ensure that center bar 50 and the inner wall of pipe body 102 form even powder gap between.The space formed by the mold cavity 302C of the template 30 and the workpiece 10 realizes the accurate filling of the powder material, and the whole capillary structure is formed by one-time sintering process.The technical scheme effectively solves the problems of incomplete lap of traditional three-dimensional uniform plate capillary structure, complicated manufacturing process and easy damage of capillary structure, greatly improves the reflux efficiency of working fluid, simplifies the process technology, and significantly improves the heat dissipation performance and reliability of the product.

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

[0068] As Figure 5 and Figure 6A shown, the jig set 1' of the second embodiment of the utility model compared with the jig set 1 of the first embodiment, in addition to including a base 20', a template 30', a cover plate 70', at least one first positioning piece 40 and at least one center bar 50, further including at least one second positioning piece 40 and at least one interference bar 60.In addition, at least one elbow pipe through slot 202 is further provided in the base 20'.The elbow pipe through slot 202 has an opening 202P provided on the bearing surface 200' of the base 20', and the elbow pipe through slot 202 is used for accommodating at least one elbow pipe body 114 of the workpiece 11, so as to adapt to the more complex workpiece shape requirement.

[0069] As Figure 6A 、 Figure 6B shown, the template 30' of the embodiment, the second surface 302' is provided with a ring wall 302W, the ring wall 302W surrounds a mold cavity 302C', and the powder injection groove 3010' is connected with the mold cavity 302C' through the powder injection port 3010P'.The template 30' is provided with at least one first through hole 303' and at least one second through hole 304' in the area corresponding to the mold cavity 302C', the first through hole 303' corresponds (aligns) with the opening 201P of the channel 201', and the second through hole 304' corresponds (aligns) with the opening 202P of the elbow pipe through slot 202.The template 30' is used to cover the workpiece 11 placed on the base 20' with the second surface 302'.

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

[0071] The jig set 1' of the second embodiment of the present utility model is used for preparing a three-dimensional capillary structure on a workpiece 11.

[0072] As shown in Figure 7 , the workpiece 11 comprises a plate body 111 and at least one pipe body 112 and at least one bent pipe body 114 arranged on the plate body 111. 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. The pipe body 112 is arranged on the second surface 111B of the plate body 111 and communicates with the first opening 111P of the plate body 111. The bent pipe body 114 is also arranged on the second surface 111B of the plate body 111 and communicates with the second opening 112P of the plate body 111. The first surface 111U of the plate body 111 and the inner wall of the pipe body 112 have not yet formed a capillary structure, while the inner wall of the bent pipe body 114 is provided with a capillary structure 115 in advance. In detail, the jig set 1' is used for forming a continuous three-dimensional capillary structure on the first surface 111U of the plate body 111 and the inner wall of the pipe body 112 at one time, and seamlessly connects (joins) with the capillary structure 115 provided in advance on the inner wall of the bent pipe body 114.

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

[0074] As shown in Figure 8 、 Figure 9 , the second positioning member 40 is inserted into the second through hole 304' of the template 30', and since the inner wall of the bent pipe body 114 is provided with a capillary structure 115 in advance, the interference rod 60 is needed to prevent the powder material from entering the interior of the bent pipe body 114 during the preparation process.

[0075] In this embodiment, the interference rod 60 may, for example, be a tapered member having a first end 601 and a second end 602. The interference rod 60 gradually decreases 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 greater than the inner diameter of the columnar 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 columnar section 401 of the second positioning member 40, and smaller than the inner diameter of the bent pipe body 114 provided with the capillary structure 115, so that it can pass through the columnar section 401 of the second positioning member 40 and enter the interior of the bent pipe body 114.

[0076] The interference rod 60 is configured to pass through the perforation 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 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 114. The outer diameter of this section matches the inner diameter of the bent tube 114 with a pre-set capillary structure 115, thereby sealing (plugging) the area inside the bent tube 114 where the capillary structure 115 has been set, thus effectively preventing powder material from entering the interior of the bent tube 114, while allowing powder material to be laid in the peripheral area where the bent tube 114 meets the plate 111 where no capillary structure has been set. Through this design, the newly prepared three-dimensional capillary structure 113 can be seamlessly connected with the capillary structure 115 pre-set on the inner wall of the bent tube 114, thereby ensuring the continuity and integrity of the capillary structure and further improving the overall performance of the structure.

[0077] Please see Figure 10 As shown.

[0078] like Figure 10 As shown, after the above-mentioned process and high-temperature sintering, the workpiece 11 forms a three-dimensional heat spreader shell structure 13. The three-dimensional heat spreader shell structure 13 includes a plate 111, at least one tube 112, at least one bent tube 114, and a three-dimensional capillary structure 113.

[0079] The plate 111 has a first surface 111U and a second surface 111B disposed opposite to each other, and is provided with at least one first opening 111P and at least one second opening 112P. One end of the tube 112 is disposed on the second surface 111B of the plate 111 and communicates with it through the first opening 111P of the plate 111, and the other end of the tube 112 is a closed structure; one end of the bent tube 114 is also disposed on the second surface 111B of the plate 111 and communicates with it through the second opening 112P of the plate 111, and the other end of the bent tube 114 is also a closed structure, so that it can together with the plate 111 and the corresponding shell structure (not shown in the figure) form the working fluid channel of the three-dimensional heat exchanger (not shown in the figure).

[0080] The three-dimensional capillary structure 113 covers the first surface 111U of the plate 111 and extends seamlessly to the inner wall surface of the tube 112. At the same time, it is precisely connected with the capillary structure pre-set on the inner wall of the bent tube 114 to realize a continuous and complete three-dimensional capillary structure 113, which effectively improves the overall heat conduction performance and temperature uniformity, thereby meeting the requirements of efficient heat dissipation and significantly enhancing the functional reliability of the product.

[0081] The second embodiment of the utility model borrows the above technical scheme, in addition to using the first positioning piece 40 to accurately position the center rod 50 in the center of the pipe body 112, ensuring that the center rod 50 and the inner wall of the pipe body 112 form a uniform powder gap, and by the mold cavity 302C' of the template 30 and the workpiece 11 jointly defined mold space, realizing the accurate filling of the powder material between the inner wall of the pipe body 112 and the mold cavity 302C', further by the conical structure of the interference rod 60, the part is inserted in the inside of the bent pipe body 114 which has been previously provided with the capillary structure 115. By the contact between the interference rod 60 and the capillary structure 115 of the inner wall of the bent pipe body 114, the interference effect is generated, the powder filling material is prevented from entering the inside of the bent pipe body 114, and is accurately limited in the design area, avoiding the secondary powder filling and sintering of the capillary structure 115. At the same time, the technical scheme realizes the seamless connection between the newly prepared three-dimensional capillary structure 113 and the pre-set capillary structure 115 of the inner wall of the bent pipe body 114, effectively improves the integrity and continuity of the capillary structure, and further enhances the heat transfer performance and uniform effect of the overall structure.

[0082] The above has made a detailed description of the utility model, but the above is only a preferred embodiment of the utility model, and should not limit the scope of the utility model. That is, any equivalent changes and modifications made according to the utility model should still belong to the patent coverage of the utility model.

Claims

1. A jig assembly for forming a three-dimensional capillary structure on a workpiece having a plate and at least one tube disposed on the plate, characterized in that, The jig set comprises: a base having a bearing surface, the base being provided with at least one passage having an opening disposed on the bearing surface; a template having a first surface and a second surface disposed oppositely, 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 corresponding to the mold cavity, the first through hole corresponding to the opening of the passage, the template being used to cover the workpiece on the base with the second surface; at least one first positioning member provided with a through hole and being detachably inserted into the first through hole; and at least one center rod being used to pass through the first positioning member inserted into the first through hole and extend into the interior of the pipe body accommodated in the passage, the outer diameter of the column of the center rod being smaller than the inner diameter of the pipe body, so that a gap is formed between the center rod and the inner wall of the pipe body for filling a material.

2. The set of jigs according to claim 1, wherein The powder injection groove is provided with a powder injection port, and the powder injection groove communicates with the mold cavity through the powder injection port.

3. The set of jigs of claim 1, wherein The first surface of the template is provided with a recess and a frame portion surrounding the recess, the powder injection groove is disposed on the surface of the recess, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

4. The set of jigs of claim 3, wherein: Further comprising a cover plate used to cover the template, the cover plate being provided with at least one third through hole corresponding to the first through hole and at least one fourth through hole corresponding to the powder injection groove, and the cover plate being provided with at least two first positioning columns used to cooperate with the at least two first positioning holes of the frame portion.

5. The set of jigs of claim 3, wherein The bearing surface is provided with at least two second positioning columns used to cooperate with the at least two second positioning holes of the frame portion.

6. The set of jigs of claim 1, wherein The first positioning member comprises a flange section and a column section, the through hole penetrating the flange section and the column section, the column section being used to be inserted into the first through hole of the template, and the flange section being used to be clamped on the first surface of the template.

7. The set of jigs of claim 6, wherein The outer diameter of the column section matches the inner diameter of the first through hole of the template, and the inner diameter of the column section matches the outer diameter of the column of the center rod.

8. A tool set for forming a three-dimensional capillary structure on a workpiece, the workpiece having 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 jig set comprises: a base having a bearing surface, the base being provided with at least one passage having an opening disposed on the bearing surface; a template having a first surface and a second surface disposed oppositely, 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 corresponding to the mold cavity, the first through hole corresponding to the opening of the passage, the template being used to cover the workpiece on the base with the second surface; at least one first positioning member and at least one second positioning member, the first positioning member and the second positioning member each being provided with a through hole and being detachably inserted into the first through hole and the second through hole, respectively; at least one center rod being used to pass through the first positioning member inserted into the first through hole and extend into the bottom of the pipe body accommodated in the passage, the outer diameter of the column of the center rod being smaller than the inner diameter of the pipe body, so that a gap is formed between the center rod and the inner wall of the pipe body for filling a material; and At least one interference rod, which is a conical structure, is used to pass through the second positioning member inserted into the second through hole and extend into the bent pipe body accommodated in the bent pipe through slot, and contact the capillary structure of the bent pipe body through the conical structure to block the material from entering the inside of the bent pipe body.

9. The set of jigs of claim 8, wherein The powder injection slot is provided with a powder injection port, and the powder injection slot is communicated with the mold cavity through the powder injection port.

10. The set of jigs of claim 8, wherein The second surface of the mold plate is provided with an annular wall, and the annular wall surrounds to form the mold cavity.

11. The set of jigs of claim 8, wherein The first surface of the mold plate is provided with a recess and a frame portion surrounding the recess, and the powder injection slot is arranged on the surface of the recess, and the frame portion is provided with at least two first positioning holes and at least two second positioning holes.

12. The set of jigs of claim 11, wherein: Further comprising a cover plate for covering the mold plate, and the cover plate is provided with at least two first positioning columns matched with the at least two first positioning holes of the frame portion.

13. The set of jigs of claim 11, wherein The bearing surface is provided with at least two second positioning columns matched with the at least two second positioning holes of the frame portion.

14. The set of jigs of claim 8, wherein The second positioning member includes a flange section and a column section, and the through hole penetrates the flange section and the column section, the column section is used to be inserted into the second through hole of the mold plate, and the flange section is used to be clamped on the first surface of the mold plate.

15. The set of jigs of claim 14, wherein The outer diameter of the column section matches the inner diameter of the second through hole of the mold plate.

16. A three-dimensional vapor chamber housing structure prepared with the jig set according to any one of claims 8 to 15, characterized by, Comprising: A plate body having a first surface and a second surface arranged oppositely, the plate body is provided with at least one first opening; At least one pipe body, one end of the pipe body is arranged on the second surface of the plate body and 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 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 pipe body through the first opening.

17. The three-dimensional vapor chamber housing structure of claim 16, wherein: Further comprising 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 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.

Images