3D printing efficient heat dissipation mechanism and 3D printer

Abstract

The utility model discloses a 3D printing efficient heat dissipation mechanism and a 3D printer, the 3D printing efficient heat dissipation mechanism comprises an effector shell, the effector shell comprises an upper shell and a lower shell, the upper shell is provided with an air guide pipe, and the lower shell is provided with an air distribution device; an air inlet is formed in the upper end of the air guide pipe and connected with an external air supply device through an air supply pipeline. An air outlet is formed in the lower end of the air guide pipe; the air distribution device comprises an air duct, the air duct is connected with an air outlet of the air guide pipe, and the air duct is provided with a first exhaust structure for dissipating heat of the nozzles. According to the utility model, air is supplied to the air guide pipe through the external air supply device, and the air is conveyed to the air duct of the air distribution device by the air guide pipe and is exhausted from the air exhaust structure, so that the air quantity and the air speed of an actual acting part can be increased, the heat dissipation efficiency of the 3D printer during printing is ensured, the overall weight of the effector is reduced, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printing high-efficiency heat dissipation mechanism and a 3D printer. Background Art

[0002] When a 3D printer prints an object, it needs to dissipate heat from the nozzle on the effector so that the 3D printer can ensure the printing quality when printing layer by layer. The faster the 3D printer prints, the faster it needs to cool the extruded consumables. The current heat dissipation device is a small fan fixed next to its nozzle to dissipate heat. Due to its low wind force, when a high-speed 3D printer prints, the consumables are prone to untimely cooling in a short period of time, thus affecting the printing quality. This results in the existing heat dissipation device only being able to meet the cooling needs of low-speed 3D printers, but not the needs of high-speed 3D printers.

[0003] There are two existing installation schemes for heat dissipation devices: one is to add an additional fan inside the 3D printer that can move up and down with the printing platform; the other is to install a larger fan next to the nozzle to meet the heat dissipation requirements, as shown in CN206306452U. The first solution is very inconvenient and costly because the fan is far away from the nozzle and its installation method takes up a large space. The second solution is to add a large fan directly to the effector, which will also increase the overall weight of the effector. After the overall weight of the effector increases, since the effector moves quickly when working, when its weight increases, it will also affect the printing quality.

[0004] Therefore, there is a need for a lightweight device that can be used to quickly dissipate heat from a 3D printer nozzle to dissipate heat from the nozzle and shorten the cooling time.

[0005] In order to solve the above problems, the applicant submitted an invention application on December 27, 2023, a heat dissipation device for a 3D printer and a 3D printer, application number 2023118125481.

[0006] During the continued research and development process, the applicant proposed a new heat dissipation mechanism for a 3D printer. Utility Model Content

[0007] The purpose of the utility model is to provide a 3D printing high-efficiency heat dissipation mechanism and a 3D printer.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A 3D printing high-efficiency heat dissipation mechanism comprises an effector housing, wherein the effector housing comprises an upper housing and a lower housing, wherein an air guide duct is arranged on the upper housing, and an air distribution device is arranged on the lower housing;

[0010] An air inlet is provided at the upper end of the air guide duct, and the air inlet is connected to an external air supply device through an air supply duct; an air outlet is provided at the lower end of the air guide duct;

[0011] The air distribution device comprises an air duct, which is connected to the air outlet of the air guide pipe, and a first air exhaust structure for dissipating heat from the nozzle is arranged on the air duct.

[0012] Preferably, the air duct is also provided with a second exhaust structure for dissipating heat for the printed part.

[0013] Preferably, the air distribution device includes two air ducts, which are respectively arranged at left and right positions in the lower shell, and the upper ends of the two air ducts are connected to the air outlet of the air guide duct.

[0014] Preferably, an air guide plate is provided between the air outlet of the air guide duct and the two air ducts. The air guide plate is a conical structure, the top of which corresponds to the air outlet, and both side edges of the air guide plate lead to the two air ducts respectively.

[0015] Preferably, the lower shell is formed by connecting a lower front shell and a lower rear shell, lower baffles are respectively arranged at the left and right positions of the lower rear shell, and an upper baffle is arranged on the lower front shell, and the lower baffle, the upper baffle, the lower front shell and the lower rear shell are enclosed to form left and right air ducts;

[0016] The two side edges of the air guide plate are connected to the two lower partitions respectively, and the upper partition is provided with an air inlet, which corresponds to the tip position of the air guide plate, and the air inlet is correspondingly connected to the air outlet of the air guide duct.

[0017] Preferably, a hanging platform is provided between the upper shell and the lower shell, and the two are connected via the hanging platform in the middle;

[0018] A communication channel is arranged on the hanging platform at a position corresponding to the air guide duct, and the communication channel connects the air outlet of the air guide duct and the air inlet of the upper partition.

[0019] Preferably, the first air exhaust structure includes one or more first air exhaust ports arranged inside the air duct and pointing to the nozzle or a position beside the nozzle.

[0020] Preferably, the second air exhaust structure includes one or more second air exhaust ports arranged at the lower side of the air duct and directed toward the printed piece or a position next to the printed piece.

[0021] Preferably, two second air outlets are provided, and the two second air outlets are staggered in the front-to-back direction, and the second air outlets point to the printed piece or a position next to the printed piece.

[0022] Preferably, the air duct extends in the up-down direction, and the upper end of the air duct extends outward from the upper shell, and the upper end of the air duct is configured as a quick-connect connector.

[0023] The utility model also discloses a 3D printer, comprising the 3D printing high-efficiency heat dissipation mechanism.

[0024] Beneficial effects of the utility model:

[0025] (1) The utility model divides the effector shell into an upper and lower shell, integrates an air guide duct on the upper shell, and integrates an air distribution device (including an air duct and an exhaust structure arranged on the air duct) on the lower shell. The air is supplied to the air guide duct through an external air supply device, and the air guide duct delivers the air to the air duct and exhausts it from the exhaust structure, thereby increasing the air volume and wind speed at the actual effecting part, ensuring the heat dissipation efficiency of the 3D printer during printing, while reducing the overall weight of the effector and occupying a small space.

[0026] The utility model can not only meet the cooling requirements of low-speed 3D printers, but also meet the requirements of high-speed 3D printers, thereby ensuring the printing quality.

[0027] (2) The utility model can dissipate heat to the nozzle part through the first exhaust structure. The first exhaust structure includes one or more exhaust ports arranged inside the lower air duct to ensure heat dissipation to the nozzle part.

[0028] The utility model can dissipate heat from the printed object through the second exhaust structure. The second exhaust structure includes one or more exhaust ports arranged on the lower side of the lower air duct, which can discharge fine wind outside the housing to accelerate the cooling of the printed object, especially when printing a larger object, and can extend the blowing time on the object.

[0029] The utility model can form a wind waterfall through the cooperation of the first exhaust structure and the second exhaust structure, so that wind is blown at the printing platform position, thereby ensuring uniform heat dissipation, improving heat dissipation efficiency, and shortening cooling time.

[0030] (3) The effector shell of the utility model includes an upper shell and a lower shell, and the upper shell and the lower shell are connected by a hanging platform in the middle, and the hanging platform is used to realize the connection of the air duct. This method facilitates the assembly of the shell and greatly reduces the difficulty of assembly.

[0031] (4) In the utility model, the lower shell is formed by connecting the lower front shell and the lower rear shell. The air duct is formed by the lower partition, the upper partition, the lower front shell and the lower rear shell, which facilitates the formation of the air distribution device on the lower shell and reduces the difficulty of air duct processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is an overall longitudinal sectional view of the utility model;

[0034] Figure 3It is a schematic diagram of the upper housing of the utility model;

[0035] Figure 4 It is a schematic diagram of the hanging platform in the utility model;

[0036] Figure 5 The schematic diagram of the lower housing in the utility model Figure 1 ;

[0037] Figure 6 The schematic diagram of the lower housing in the utility model Figure 2 ;

[0038] Figure 7 It is a schematic diagram of the lower front housing of the utility model;

[0039] Figure 8 It is a schematic diagram of the lower rear shell of the utility model.

[0040] The reference numerals in the figures are as follows:

[0041] 1-upper shell, 2-hanging platform, 20-positioning groove, 21-connecting channel, 3-lower shell, 31-lower front shell, 311-upper partition, 310-air inlet, 32-lower rear shell, 321-lower partition, 4-air guide pipe, 5-air duct, 50-buffer section, 51-first air outlet, 52, 53-second air outlet, 6-nozzle, 7-air guide plate, 8-quick connection connector.

[0042] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] Embodiment 1:

[0045] like Figure 1 and Figure 2 As shown, this embodiment provides a 3D printing efficient heat dissipation mechanism, including an effector shell, the effector shell includes an upper shell 1 and a lower shell 3, the upper shell 1 is provided with an air duct 4, and the lower shell 3 is provided with an air distribution device.

[0046] An air inlet is provided at the upper end of the air guide duct 4 , and the air inlet is connected to an external air supply device through an air supply duct; an air outlet is provided at the lower end of the air guide duct 4 .

[0047] In specific applications, a blower can be used as the air supply device, and a flexible connecting pipe can be used as the air supply duct.

[0048] The air distribution device includes two air ducts 5, which are symmetrically arranged at left and right positions in the lower shell 3, and the upper ends of the two air ducts 5 are connected to the air outlet of the air guide 4. The air ducts 5 are provided with a first exhaust structure for dissipating heat from the nozzle and a second exhaust structure for dissipating heat from the printed part.

[0049] When working, the wind force generated by the blower is transmitted to the air duct 4 through the flexible connecting tube. The air duct 4 sends the wind to the two air ducts and blows it out from the first exhaust structure and the second exhaust structure respectively, so as to dissipate the heat of the nozzle and the printed part.

[0050] The present invention can achieve an increase in the air volume and an increase in the wind speed at the actual action part, thereby ensuring the heat dissipation efficiency of the 3D printer during printing, while reducing the overall weight of the effector, occupying a small space, meeting the heat dissipation requirements of the printed part, and ensuring the printing quality.

[0051] Embodiment 2:

[0052] like Figure 1 to Figure 2 and Figures 5 to 8 As shown, based on the first embodiment, the lower shell 3 in this embodiment is formed by connecting the lower front shell 31 and the lower rear shell 32, which reduces the difficulty of air duct processing.

[0053] Specifically, lower partitions 321 are respectively provided at the left and right positions of the lower rear shell 32, and an upper partition 311 is provided on the lower front shell 31. The lower partition 321, the upper partition 311, the lower front shell 31, and the lower rear shell 32 enclose two left and right air ducts.

[0054] In order to evenly disperse the wind force discharged from the air guide duct to the two air ducts 11, an air guide plate 7 is provided between the upper ends of the two air ducts 11 and the air outlet of the air guide duct 4. The air guide plate 7 is a conical structure, and its tip position corresponds to the air outlet of the air guide duct 4, and its two side edges are respectively connected to the upper ends of the two lower partitions, so that the wind force can be better transmitted to the two air ducts 11, achieving uniform wind guidance.

[0055] The upper partition plate 311 is provided with an air inlet 310 , which corresponds to the top position of the air guide plate 7 , and is connected to the air outlet of the air guide duct 4 .

[0056] Embodiment three:

[0057] like Figures 1 to 8 As shown, on the basis of the second embodiment, the effector shell of this embodiment adopts a three-part assembly structure of an upper shell 1, a hanging platform 2 and a lower shell 3, which not only realizes the connectivity of the air duct, but also facilitates the assembly of the shell, greatly reducing the difficulty of assembly.

[0058] The specific settings of the effector shell are as follows:

[0059] A hanging platform 2 is provided between the upper shell 1 and the lower shell 3 , and the two are connected via the hanging platform 2 in the middle.

[0060] A communication channel 21 is provided on the hanging platform 2 at a position corresponding to the air duct 4 , and the communication channel 21 connects the air outlet of the air duct 4 and the air inlet 310 of the upper partition plate 311 .

[0061] In this embodiment, a positioning groove 20 is further dug on the hanging platform 2 around the connecting channel 21. The air outlet of the air duct 4 protrudes downward and cooperates with the positioning groove 20. The air inlet 310 of the upper partition 311 protrudes upward and cooperates with the positioning groove 20. A sealing gasket can also be installed inside the positioning groove 20 to further improve the sealing performance.

[0062] Embodiment 4:

[0063] like Figure 1 to Figure 2 and Figures 5 to 8 As shown, based on the third embodiment, this embodiment clarifies the arrangement of the first exhaust structure and the second exhaust structure.

[0064] The first exhaust structure includes one or more exhaust ports arranged inside the two air ducts 5. Specifically in this embodiment, the first exhaust structure includes a first exhaust port 51, which points to the nozzle 6 or a position beside the nozzle, and can directly dissipate heat from the nozzle 6.

[0065] The second exhaust structure includes one or more exhaust ports arranged at the lower sides of the two air ducts 5. Specifically in this embodiment, the second exhaust structure includes second exhaust ports 52 and 53, which are staggered in the front-to-back direction, and can discharge fine wind out of the housing to dissipate heat for printing large objects.

[0066] In order to facilitate the arrangement of the above-mentioned air outlets, the two air ducts 5 are both provided with a buffer section 50 extending in the front-to-back direction, and the first air outlet 51 and the second air outlets 52 and 53 are located at the buffer section.

[0067] The first exhaust structure and the second exhaust structure can form a wind waterfall by setting three exhaust ports, so that wind can flow to the printing platform, dissipate heat evenly, improve heat dissipation efficiency, and shorten cooling time.

[0068] Embodiment five:

[0069] like Figure 1 to Figure 2 As shown, on the basis of embodiment 4, in order to achieve a quick connection between the air supply duct 6 and the air guide duct 4, in this embodiment, the air guide duct 4 extends in the up and down directions, and the upper end of the air guide duct 4 extends outward from the upper shell, and at the same time, the upper end of the air guide duct 4 is set as a quick connection connector 8.

[0070] The quick connection connector 8 can adopt the existing technology.

[0071] Embodiment six:

[0072] This embodiment discloses a 3D printer, which includes a 3D printing efficient heat dissipation mechanism. The 3D printing efficient heat dissipation mechanism can refer to the above embodiment and will not be described in detail here. As a matter of course, since the 3D printer of this embodiment adopts the technical solution of the above 3D printing efficient heat dissipation mechanism, the 3D printer has all the beneficial effects of the above 3D printing efficient heat dissipation mechanism.

[0073] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0074] If the words "first", "second" and so on are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A 3D printed efficient heat dissipation mechanism, comprising an effector housing, characterized in that: The effector housing comprises an upper housing and a lower housing, the upper housing is provided with an air guide duct, and the lower housing is provided with an air distribution device; An air inlet is provided at the upper end of the air guide duct, and the air inlet is connected to an external air supply device through an air supply duct; an air outlet is provided at the lower end of the air guide duct; The air distribution device comprises an air duct, which is connected to the air outlet of the air guide pipe, and a first air exhaust structure for dissipating heat from the nozzle is arranged on the air duct.

2. The 3D printing efficient heat dissipation mechanism according to claim 1, characterized in that: The air duct is also provided with a second exhaust structure for dissipating heat from the printed part.

3. The 3D printing efficient heat dissipation mechanism according to claim 2, characterized in that: The air distribution device comprises two air ducts, which are respectively arranged at left and right positions in the lower shell body, and the upper ends of the two air ducts are connected to the air outlet of the air guide pipe.

4. The 3D printing efficient heat dissipation mechanism according to claim 3, characterized in that: An air guide plate is arranged between the air outlet of the air guide duct and the two air ducts. The air guide plate is a conical structure, the top position of which corresponds to the air outlet, and the two side edges of which lead to the two air ducts respectively.

5. The 3D printing efficient heat dissipation mechanism according to claim 4, characterized in that: The lower shell is formed by connecting the lower front shell and the lower rear shell, the lower rear shell is provided with lower baffles at the left and right positions respectively, the lower front shell is provided with an upper baffle, and the lower baffle, the upper baffle, the lower front shell and the lower rear shell are enclosed to form two left and right air ducts; The two side edges of the air guide plate are connected to the two lower partitions respectively, and the upper partition is provided with an air inlet, which corresponds to the tip position of the air guide plate, and the air inlet is correspondingly connected to the air outlet of the air guide duct.

6. The 3D printing efficient heat dissipation mechanism according to claim 5, characterized in that: A hanging platform is provided between the upper shell and the lower shell, and the two are connected through the hanging platform in the middle; A communication channel is arranged on the hanging platform at a position corresponding to the air guide duct, and the communication channel connects the air outlet of the air guide duct and the air inlet of the upper partition.

7. The 3D printing efficient heat dissipation mechanism according to any one of claims 2 to 6, characterized in that: The first air exhaust structure includes one or more first air exhaust ports arranged inside the air duct and pointing to the nozzle or a position beside the nozzle.

8. The 3D printing efficient heat dissipation mechanism according to any one of claims 2 to 6, characterized in that: The second air exhaust structure includes one or more second air exhaust ports arranged at the lower side of the air duct and directed toward the printed piece or a position next to the printed piece.

9. The 3D printing efficient heat dissipation mechanism according to claim 8, characterized in that: There are two second air outlets, which are staggered in the front-to-back direction, and point to the printed piece or a position next to the printed piece.

10. The 3D printing efficient heat dissipation mechanism according to claim 1, characterized in that: The air guide pipe extends in the up-down direction, and the upper end of the air guide pipe extends outward from the upper shell body, and the upper end of the air guide pipe is configured as a quick connection joint.

11. A 3D printer, characterized in that: It comprises the 3D printing efficient heat dissipation mechanism as described in any one of claims 1-10.

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