Radiator for 3D printing

Abstract

The radiator for 3D printing comprises a shell, a plurality of first cooling pipelines and a plurality of second cooling pipelines, a cavity is formed in the shell, and air holes communicated with the cavity are formed in the two sides of the shell; the multiple first cooling pipelines and the multiple second cooling pipelines are all arranged in the cavity and are sequentially arranged at intervals in the axis direction of the air holes, the adjacent first cooling pipelines and second cooling pipelines are arranged in a high-low staggered mode in the vertical direction of the shell, and heat exchange media flow in the first cooling pipelines and the second cooling pipelines; gas enters the cavity through the air holes and exchanges heat with the first cooling pipeline and the second cooling pipeline. Through the arrangement mode of the first cooling pipeline and the second cooling pipeline, the heat exchange area is increased, the uniformity of heat exchange between the cooling pipelines and gas is improved, and therefore the heat dissipation effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to a radiator for 3D printing. Background Art

[0002] During the 3D printing process, the inert gas entering the working chamber needs to be dissipated. The inert gas passes through the printing chamber. The printing effect is better when the printing chamber temperature is controlled at 37±1℃. In addition, the temperature of the inert gas will increase after it comes out of the printing chamber. Due to the temperature difference, the wind field will be disturbed. Therefore, a heat exchanger is installed at the inlet and outlet positions of the wind field assembly pipeline to keep the inert gas temperature relatively stable.

[0003] A radiator tube structure suitable for 3D printing, with publication number CN212920450U, includes a connector and a plurality of heat dissipation flat tubes fixed to the connector, the heat dissipation flat tube is a U-shaped pipe, which includes a liquid inlet and a liquid outlet, and a plurality of reinforcing ribs are obliquely arranged in the heat dissipation flat tube; the existing heat dissipation pipeline bends are arranged in a straight line in sequence, resulting in poor uniformity of gas during heat exchange, and then resulting in poor heat exchange effect, thereby reducing the heat dissipation. Utility Model Content

[0004] In view of this, the utility model proposes a radiator for 3D printing, which increases the heat exchange area by staggered arrangement of heat exchange pipes in the cavity, improves the uniformity of heat exchange between the cooling pipes and the gas, and thus improves the heat dissipation effect.

[0005] The technical solution of the utility model is implemented as follows: The utility model provides a radiator for 3D printing, including a shell, a plurality of first cooling pipes and a plurality of second cooling pipes, wherein:

[0006] A cavity is provided inside the shell, and air holes communicating with the cavity are provided on both sides;

[0007] A plurality of first cooling pipes and a plurality of second cooling pipes are arranged in the cavity and are arranged in sequence along the axis direction of the air hole. The adjacent first cooling pipes and second cooling pipes are arranged in a staggered manner along the vertical direction of the shell. Heat exchange medium flows in the first cooling pipes and the second cooling pipes.

[0008] The gas enters the cavity through the air holes and performs heat exchange with the first cooling pipe and the second cooling pipe.

[0009] On the basis of the above technical solution, preferably, the housing includes a box body and two air guide covers, wherein:

[0010] The box body is hollow inside and has openings on both sides, and the cavity is located inside the box body;

[0011] The two air guide covers are respectively arranged at the openings of the box body, and the air guide covers are connected with the inside of the box body. The air holes are located on the side of the air guide covers away from the box body.

[0012] On the basis of the above technical solution, preferably, the housing further comprises at least two sealing members, wherein:

[0013] At least two seals are respectively arranged between the box body and each air guide cover, and the outer contour of the seal is the same as the outer contour size of the side where the air guide cover and the box body are close to each other, so as to achieve sealing.

[0014] On the basis of the above technical solution, preferably, it further includes at least two air guide members, wherein the at least two air guide members are respectively arranged in each air guide cover to divide the air hole into a number of evenly distributed air ducts.

[0015] On the basis of the above technical solution, preferably, it further comprises two liquid collecting boxes and at least two external pipe joints, wherein:

[0016] The two liquid collecting boxes are both arranged on the same side of the box body and are arranged at intervals;

[0017] Both side ports of the first cooling pipe and the second cooling pipe are arranged on the same side, and both side ports of the first cooling pipe and the second cooling pipe respectively penetrate the box body and extend into the corresponding liquid collecting box, and are connected with the inside of the liquid collecting box;

[0018] At least two external pipe connectors are respectively arranged on each liquid collecting box, and one end thereof penetrates and extends into the liquid collecting box and is in communication with the interior of the liquid collecting box;

[0019] The external heat exchange medium circulates in the first cooling pipeline and the second cooling pipeline through the external pipe joint and the liquid collecting box.

[0020] On the basis of the above technical solution, preferably, it further comprises at least two adapters, wherein:

[0021] At least two adapters are respectively arranged on a side of each air guide cover away from the box body, and the end surface of the adapter on the side away from the air guide cover is circular and is used for connection with an external circular pipe.

[0022] On the basis of the above technical solution, preferably, the spacing between adjacent first cooling pipes and second cooling pipes in the vertical direction is the same as the spacing between adjacent first cooling pipes in the horizontal direction.

[0023] On the basis of the above technical solution, preferably, the first cooling pipe and the second cooling pipe are both U-shaped bent pipes.

[0024] On the basis of the above technical solution, preferably, the first cooling pipe, the second cooling pipe and the box body are integrally formed by 3D printing.

[0025] On the basis of the above technical scheme, preferably, the at least two air guide members each include four air guide plates, wherein each of the two adjacent air guide plates is provided with a notch, and the two adjacent air guide plates are clamped and fixed to each other through the notch; a number of air ducts are formed between adjacent air guide plates and between the air guide plates and the inner surface of the air guide cover, and the several air ducts are all connected with the wind holes and the cavity.

[0026] The 3D printing heat sink of the utility model has the following beneficial effects compared with the prior art:

[0027] (1) A plurality of first cooling pipes and second cooling pipes are arranged in sequence along the axial direction of the air hole, and adjacent first cooling pipes and second cooling pipes are arranged in a staggered manner along the vertical direction of the shell. This arrangement increases the heat exchange area and improves the uniformity of heat exchange between the cooling pipe and the gas, thereby effectively improving the heat dissipation effect;

[0028] (2) By providing a seal between the housing and the air guide cover, the sealing of the entire housing can be ensured.

[0029] (3) The wind guide member can be used to divide the wind hole into a number of evenly distributed wind ducts, so that the 3D printed inert gas can flow evenly into the cavity and perform heat exchange with the first cooling pipe and a number of second cooling pipes, thereby effectively improving the uniformity of heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a three-dimensional diagram of the radiator for 3D printing of the utility model;

[0032] Figure 2 This is a front view of the radiator for 3D printing of the utility model;

[0033] Figure 3 The utility model is a radiator for 3D printing Figure 2 Sectional view at AA;

[0034] Figure 4 This is a three-dimensional diagram of the internal structure of the box of the radiator for 3D printing of the utility model;

[0035] Figure 5 This is a side view of the internal structure of the box of the 3D printing radiator of the utility model;

[0036] Figure 6 This is a cross-sectional view of the internal structure of the radiator box for 3D printing of the utility model;

[0037] Figure 7 This is a side view of the radiator for 3D printing of the utility model;

[0038] Figure 8 The utility model is a radiator for 3D printing Figure 7 Cross-sectional view at BB in the middle. DETAILED DESCRIPTION

[0039] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figure 1-8 As shown, a heat sink for 3D printing of the utility model comprises a shell 1, a plurality of first cooling pipes 2 and a plurality of second cooling pipes 3.

[0041] Among them, a cavity 100 is provided inside the shell 1, and air holes 200 connected to the cavity 100 are opened on both sides; a plurality of first cooling pipes 2 and a plurality of second cooling pipes 3 are arranged in the cavity 100, and are arranged in sequence along the axial direction of the air holes 200, and the adjacent first cooling pipes 2 and second cooling pipes 3 are arranged in a staggered manner along the vertical direction of the shell 1, and heat exchange medium flows in the first cooling pipes 2 and the second cooling pipes 3; the gas enters the cavity 100 through the air holes 200, and exchanges heat with the first cooling pipes 2 and the second cooling pipes 3.

[0042] It should be noted that, by setting up a plurality of first cooling pipes 2 and second cooling pipes 3 which are arranged in sequence along the axial direction of the air hole, and adjacent first cooling pipes 2 and second cooling pipes 3 are arranged in a staggered manner along the vertical direction of the shell, this arrangement increases the heat exchange area and improves the uniformity of heat exchange between the cooling pipe and the gas, thereby effectively improving the heat dissipation effect.

[0043] Specifically, Figure 1 As shown, X is the length horizontal direction of the shell 1, Y is the width horizontal direction of the shell 1, and Z is the vertical horizontal direction of the shell 1.

[0044] The shell 1 in this embodiment includes a box body 11 and two air guide covers 12, wherein the interior of the box body 11 is hollow and has openings on both sides, and the cavity 100 is located in the box body 11; the two air guide covers 12 are respectively arranged at the openings of the box body 11, and the air guide covers 12 are connected to the interior of the box body 11, and the air holes 200 are located on the side of the air guide cover 12 away from the box body 11.

[0045] It should be noted that in this embodiment, the shell 1 is preferably installed with a split structure, and the first cooling pipe 2 and the second cooling pipe 3 are installed in the box body 11. The box body 11 and the two air guide covers 12 are installed and fixed by bolts. In later maintenance, the air guide covers 12 and the box body 11 can be disassembled to facilitate maintenance of the first cooling pipe 2 and the second cooling pipe 3 in the box body 11, which is convenient for installation and maintenance.

[0046] Furthermore, the shell 1 in this embodiment also includes at least two seals 13, wherein at least two seals 13 are respectively arranged between the box body 11 and each air guide cover 12, and the outer contour of the seal 13 is the same as the outer contour size of the side close to the air guide cover 12 and the box body 11, so as to achieve sealing.

[0047] It should be noted that by providing a seal 13 between the box body 11 and the air guide cover 12 , the sealing performance of the entire housing 1 can be ensured.

[0048] Specifically, the sealing member 13 in this embodiment is a silicone rubber sealing pad.

[0049] The present embodiment further includes at least two air guide members 4 , wherein the at least two air guide members 4 are respectively and correspondingly arranged in each air guide cover 12 , so as to divide the air hole 200 into a plurality of evenly distributed air ducts.

[0050] It should be noted that the wind guide 4 can divide the air hole 200 into a number of evenly distributed air ducts, so that the 3D printed inert gas can flow evenly into the cavity 100, and perform heat exchange with the first cooling pipe 2 and the second cooling pipes 3, thereby effectively improving the uniformity of heat exchange.

[0051] The at least two air guide members 4 in this embodiment each include four air guide plates 41, wherein each of the two adjacent air guide plates 41 is provided with a notch, and the two adjacent air guide plates 41 are clamped and fixed to each other through the notch; a number of air ducts are formed between the adjacent air guide plates 41 and between the air guide plates 41 and the inner surface of the air guide cover 12, and the several air ducts are all connected with the wind holes 200 and the cavity 100.

[0052] Specifically, the air guide member 4 in the present embodiment includes four air guide plates, wherein two air guide plates are installed between the left and right inner walls of the air guide cover 12, and the other two air guide plates are installed between the upper and lower inner walls of the air guide cover 12, and the two adjacent air guide plates are arranged at intervals, and the four air guide plates form a "well" structure, dividing the internal space of the air guide cover 12 into nine equal-area air ducts, and the inert gas passes through the wind holes 200 and is diverted through the nine equal-area air ducts into the cavity 100, thereby effectively improving the uniformity of heat exchange.

[0053] The present embodiment also includes two liquid collecting boxes 5 and at least two external pipe joints 6, wherein the two liquid collecting boxes 5 are both arranged on the same side of the casing 11 and are arranged at intervals; the two side ports of the first cooling pipe 2 and the second cooling pipe 3 are both arranged on the same side, and the two side ports of the first cooling pipe 2 and the second cooling pipe 3 respectively penetrate the casing 11 and extend into the corresponding liquid collecting boxes 5, and are connected to the interior of the liquid collecting boxes 5; at least two external pipe joints 6 are respectively correspondingly arranged on each liquid collecting box 5, and one end penetrates and extends into the liquid collecting box 5, and is connected to the interior of the liquid collecting box 5; the external heat exchange medium circulates in the first cooling pipe 2 and the second cooling pipe 3 through the external pipe joints 6 and the liquid collecting box 5.

[0054] It should be noted that the first cooling pipe 2 and the second cooling pipe 3 are each provided with two ports, one being the water inlet end and the other being the water outlet end. The heat exchange medium flows in the cooling pipe, and the external heat exchange medium flows into the corresponding liquid collecting box 5 through the external pipe joint 6 on one side. The liquid collecting box 5 is connected to the first cooling pipe 2 and the second cooling pipe 3, so that the external heat exchange medium can flow along the first cooling pipe 2 and the second cooling pipe 3 to the liquid collecting box 5 on the other side, and then flow out through the external pipe joint 6 connected on the other side. Then, a water circulation system is set externally, which can make the heat exchange medium circulate in the first cooling pipe 2 and the second cooling pipe 3, take away the heat of the inert gas, and achieve the purpose of cooling.

[0055] Among them, this design can make it possible to eliminate pipe joints in the cavity 100, thereby avoiding water leakage in the cavity 100.

[0056] This embodiment also includes at least two adapters 7, wherein the at least two adapters 7 are respectively arranged on the side of each air guide cover 12 away from the box body 11, and the end surface of the adapter 7 on the side away from the air guide cover 12 is circular for connection to an external circular pipe.

[0057] It should be noted that the air guide cover 12 is circular on one side of the air hole 200 and square on the other side, and adopts a draft structure design. In order to facilitate the connection of external pipes, an adapter 7 is welded on the side of the air hole 200 of the air guide cover 12. An annular groove is opened on the outer edge of the adapter 7, and a sealing ring is arranged in the annular groove to improve the sealing with the external pipe.

[0058] Specifically, in this embodiment, the spacing between adjacent first cooling pipes 2 and second cooling pipes 3 in the vertical direction is 10 mm. The spacing between adjacent first cooling pipes 2 and second cooling pipes 3 in the horizontal direction is 10 mm.

[0059] In the present embodiment, the first cooling pipe 2 and the second cooling pipe 3 are both U-shaped bent pipes, and the first cooling pipe 2, the second cooling pipe 3 and the box body 11 are integrally formed by 3D printing.

[0060] In addition, the first cooling pipe 2 and the second cooling pipe 3 can be an integrated structure, and the first cooling pipe 2 and the second cooling pipe 3 are connected to form a complete pipeline, and a water inlet and a water outlet are provided at both ends of the pipeline. Moreover, the pipeline is integrally formed by 3D printing, and the pipeline is bent in the box body 11 to form adjacent horizontal pipelines that are arranged at intervals of different heights. This arrangement increases the heat exchange area and improves the uniformity of heat exchange between the cooling pipe and the gas, thereby effectively improving the heat dissipation effect.

[0061] It should be noted that the first cooling pipe 2 and the second cooling pipe 3 are both integrally formed by 3D printing of stainless steel, and there is no need to bend the pipes multiple times, which effectively reduces the complexity of the process.

[0062] Working principle:

[0063] The external heat exchange medium flows into the corresponding liquid collecting box 5 through the external pipe joint 6 on one side. The liquid collecting box 5 is connected with the first cooling pipe 2 and the second cooling pipe 3. Then, the external heat exchange medium can flow along the first cooling pipe 2 and the second cooling pipe 3 to the liquid collecting box 5 on the other side, and then flow out through the external pipe joint 6 connected on the other side. The inert gas enters the cavity 100 through the air hole 200 on one side, exchanges heat with the first cooling pipe 2 and the second cooling pipe 3, and takes away the heat of the inert gas, thereby achieving the purpose of cooling.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat sink for 3D printing, It is characterized in that It comprises a housing (1), a plurality of first cooling pipes (2) and a plurality of second cooling pipes (3), wherein: A cavity (100) is provided inside the housing (1), and air holes (200) communicating with the cavity (100) are provided on both sides; A plurality of first cooling pipes (2) and a plurality of second cooling pipes (3) are arranged in the cavity (100) and are arranged in sequence and spaced apart along the axial direction of the air hole (200); adjacent first cooling pipes (2) and second cooling pipes (3) are arranged in a staggered manner along the vertical direction of the shell (1); and heat exchange medium flows in the first cooling pipes (2) and the second cooling pipes (3); The gas enters the cavity (100) through the air hole (200) and performs heat exchange with the first cooling pipe (2) and the second cooling pipe (3).

2. The 3D printing heat sink according to claim 1, Features: The housing (1) comprises a box body (11) and two air guide covers (12), wherein: The box body (11) is hollow inside and has openings on both sides, and the cavity (100) is located inside the box body (11); The two air guide covers (12) are respectively arranged at the respective openings of the box body (11), and the air guide covers (12) are connected to the inside of the box body (11). The air hole (200) is located on a side of the air guide covers (12) away from the box body (11).

3. The 3D printing heat sink according to claim 2, Features: The housing (1) further comprises at least two sealing members (13), wherein: At least two sealing members (13) are respectively arranged between the box body (11) and each air guide cover (12), and the outer contour of the sealing member (13) is the same as the outer contour size of the side of the air guide cover (12) and the box body (11) close to each other, so as to achieve sealing.

4. The 3D printing heat sink according to claim 2, Features: It also includes at least two air guide members (4), wherein the at least two air guide members (4) are respectively and correspondingly arranged in each air guide cover (12) and are used to divide the air hole (200) into a plurality of evenly distributed air ducts.

5. The 3D printing heat sink according to claim 2, Features: It also includes two liquid collection boxes (5) and at least two external pipe joints (6), wherein: The two liquid collecting boxes (5) are both arranged on the same side of the box body (11) and are arranged at intervals; The ports on both sides of the first cooling pipe (2) and the second cooling pipe (3) are arranged on the same side, and the ports on both sides of the first cooling pipe (2) and the second cooling pipe (3) respectively penetrate the box body (11) and extend into the corresponding liquid collecting box (5), and are in communication with the interior of the liquid collecting box (5); At least two external pipe connectors (6) are respectively arranged on each liquid collecting box (5), and one end thereof penetrates and extends into the liquid collecting box (5) and is in communication with the interior of the liquid collecting box (5); The external heat exchange medium circulates in the first cooling pipe (2) and the second cooling pipe (3) through the external pipe joint (6) and the liquid collecting box (5).

6. The 3D printing heat sink according to claim 2, Features: It also includes at least two adapters (7), wherein: At least two adapters (7) are respectively arranged on a side of each air guide cover (12) away from the box body (11); the end surface of the adapter (7) on the side away from the air guide cover (12) is circular and is used for connecting to an external circular pipe.

7. The 3D printing heat sink according to claim 1, Features: The spacing between adjacent first cooling pipes (2) and second cooling pipes (3) in the vertical direction is the same as the spacing between adjacent first cooling pipes (2) and second cooling pipes (3) in the horizontal direction.

8. The 3D printing heat sink according to claim 1, Features: The first cooling pipe (2) and the second cooling pipe (3) are both U-shaped bent pipes.

9. The 3D printing heat sink according to claim 1, Features: The first cooling pipe (2), the second cooling pipe (3) and the box body (11) are integrally formed by 3D printing.

10. The 3D printing heat sink according to claim 4, Features: The at least two air guide members (4) each include four air guide plates (41), wherein each of the two adjacent air guide plates (41) is provided with a notch, and the two adjacent air guide plates (41) are mutually clamped and fixed via the notch; a plurality of air ducts are formed between the adjacent air guide plates (41) and between the air guide plates (41) and the inner surface of the air guide cover (12), and the plurality of air ducts are all connected to the air hole (200) and the cavity (100).

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