Efficient heat dissipation mechanism and 3D printer
By installing a brush block cleaning mechanism on the cooling fan blades, the problem of small particles accumulating on the cooling fan blades is solved, achieving efficient heat dissipation performance, ensuring normal heat dissipation of the 3D print head, and improving the stability and quality of the printing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN WEIZHONG SOFTWARE TECHNOLOGY CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-06-02
AI Technical Summary
During the 3D printing process, the blades of the cooling fan can easily attract small particles, which can reduce the heat dissipation performance and affect the normal heat dissipation of the 3D printing head.
An efficient heat dissipation mechanism was designed. By setting brush blocks on the fan blades, the brush blocks clean small particles on the surface of the fan blades when the fan blades rotate, preventing particle accumulation and ensuring the normal operation of the cooling fan.
It effectively prevents the accumulation of small particles on the cooling fan blades, maintains heat dissipation performance, ensures normal heat dissipation of the 3D print head, and improves the stability and quality of the printing process.
Smart Images
Figure CN224311212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printer technology, and in particular to a high-efficiency heat dissipation mechanism and a 3D printer. Background Technology
[0002] During the printing process, the extruded printing material cools and solidifies, and the equipment generates heat during operation. A heat dissipation system is needed to achieve the cooling effect required for material forming and equipment operation. Currently, the most commonly used heat dissipation system for 3D printers is the cooling fan, which is mainly used to dissipate heat from the 3D print head.
[0003] During the 3D printing process, material is heated, extruded, and deposited onto a build plate to form a three-dimensional object. This process releases small particles that are easily attracted by the blades of the cooling fan. This causes the fan blades to become increasingly heavy, resulting in reduced cooling performance and hindering proper heat dissipation of the 3D printing head. Summary of the Invention
[0004] This invention addresses the problem that small particles released during 3D printing are easily attracted by the blades of the cooling fan, leading to increasingly heavy fan blades, reduced cooling performance, and hindering proper heat dissipation of the 3D print head. It proposes an efficient heat dissipation mechanism and a 3D printer to solve this problem.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency heat dissipation mechanism, including a mounting frame, a drive mechanism and a fan blade are provided on one side of the mounting frame, the fan blade is rotatably mounted on one side of the bracket by the drive mechanism, and a cleaning device is provided on one side of the fan blade, the cleaning device cleaning the fan blade by setting a brush block when the fan blade rotates.
[0006] The effect achieved by the above components is as follows: by setting up and adjusting the brush block so that one side of the brush block abuts against the outer surface of the fan blade, the brush side of the brush block can automatically clean the fan blade when the fan blade rotates, which helps to prevent the cooling performance of the cooling fan from decreasing and facilitates the normal heat dissipation of the 3D printing head.
[0007] Preferably, the cleaning device includes an auxiliary block, a threaded pin is fixedly inserted into the inner wall of the auxiliary block, an installation block is fixedly installed on one side of the mounting frame through a disassembly and assembly assembly, one end of the threaded pin is rotatably installed on the inner wall of the installation block through a bearing, a nut is threadedly connected to the outer surface of the threaded pin, the nut is located on one side of the auxiliary block, and a brush block is slidably arranged on the inner wall of the auxiliary block.
[0008] The effect achieved by the above components is as follows: by setting up the brush block, rotating and pushing the brush block so that one side of the brush block abuts against the outer surface of the fan blade, and then rotating the nut so that one side of the nut presses against the auxiliary block, so that the auxiliary block and the mounting block are fixed to each other, the heat dissipation mechanism is activated, causing the fan blade to rotate. When the fan blade rotates, the brush side of the brush block can clean the fan blade, so that small particles on the fan blade are detached from the fan blade and blown out by the wind generated by the fan blade, thus facilitating the cleaning of these small particles.
[0009] Preferably, a connecting plate is fixedly installed on one side of the brush block, a spring is fixedly installed on one side of the connecting plate, and one end of the spring and one end of the threaded pin are fixedly installed with the same baffle.
[0010] The effect achieved by the above components is as follows: by setting a spring, the spring will squeeze the brush block connected to the connecting plate when no other external force is applied, so that the brush side of the brush block can always be in contact with the fan blade, ensuring that the brush block can play a better cleaning role for the fan blade.
[0011] Preferably, the spring has a round rod inside, and the two ends of the round rod are respectively fixedly installed on one side of the auxiliary block and the baffle.
[0012] The effect achieved by the above components is that by setting up the round rod, the round rod can guide and limit the spring, which helps to prevent the spring from bending and thus failing to work properly.
[0013] Preferably, a rubber pad is adhered to one side of the nut, and the threaded pin is slidably inserted inside the rubber pad.
[0014] The effect achieved by the above components is that by setting rubber pads, the friction between the nut and the auxiliary block can be increased, making the nut less likely to loosen.
[0015] Preferably, the disassembly and assembly assembly includes two round hole blocks, one side of each round hole block is symmetrically installed on both sides of the mounting block, one side of each round hole block abuts against one side of the frame, and one side of the frame is symmetrically fixedly installed with a pin, the pin is inserted into the inner wall of the round hole block, and one end of the pin is provided with a frustum-shaped rubber block.
[0016] The effect achieved by the above components is as follows: the pin is inserted into the inner wall of the round hole block, so that one side of the round hole block abuts against one side of the frame. One end of the rubber block on the pin is smaller, making it easier to insert into the inner wall of the round hole block, while the other end of the rubber block is larger, which can fix the pin and the round hole block. At the same time, the mounting block can be removed, which makes it easier to clean and maintain the brush.
[0017] Preferably, a U-shaped block is symmetrically fixedly installed on one side of the frame, and the outer surface of the circular hole block is inserted into the inner wall of the U-shaped block.
[0018] The effect achieved by the above components is that by setting up the U-shaped block, the U-shaped block can quickly position the round hole block, making the fixing of the mounting block more stable.
[0019] Preferably, in the 3D printer, the heat dissipation mechanism is located inside the 3D printer, and the 3D printer has a 3D printing head inside, with the frame mounted on one side of the 3D printing head by bolts.
[0020] The aforementioned components achieve the following effects: the 3D printer uses motors in the X, Y, and Z dimensions to control the guide rail system, enabling the lifting, movement, and material supply of the print head, ensuring the movement of the print head in three-dimensional space. Meanwhile, the cooling mechanism continuously drives the rapid airflow around the 3D print head during operation, thereby cooling the 3D print head and preventing it from overheating, thus ensuring the stability of the printing process and print quality.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting a brush block and adjusting the brush block so that one side of the brush block abuts against the outer surface of the fan blade, and then fixing the brush block, the brush side of the brush block can automatically clean the fan blade when the fan blade rotates. This allows small particles on the fan blade to detach from the fan blade and be blown out by the wind generated by the fan blade, thus facilitating the rapid cleaning of these small particles. This helps prevent the cooling performance of the cooling fan from decreasing and also facilitates the normal heat dissipation of the 3D printing head. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the 3D printer of this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the heat dissipation mechanism of this utility model;
[0025] Figure 3 This is a three-dimensional structural diagram of the bracket of this utility model;
[0026] Figure 4 This is a three-dimensional structural diagram of the cleaning device of this utility model;
[0027] Figure 5 This utility model Figure 4 A magnified structural diagram at point A.
[0028] Legend: 1. Mounting frame; 2. Bracket; 3. Drive mechanism; 4. Fan blade; 5. Cleaning device; 51. Auxiliary block; 52. Threaded pin; 53. Brush block; 54. Connecting plate; 55. Spring; 56. Round rod; 57. Baffle; 58. Nut; 59. Rubber pad; 510. Mounting block; 6. Assembly / disassembly assembly; 61. Round hole block; 62. Pin; 63. U-shaped block; 7. 3D printer; 8. 3D print head. Detailed Implementation
[0029] Example 1, referring to Figures 2-5 As shown, this embodiment discloses a high-efficiency heat dissipation mechanism and a 3D printer, including a mounting frame 1. The mechanism is characterized by: a bracket 2 fixedly mounted on one side of the mounting frame 1; a drive mechanism 3 and a fan blade 4 on one side of the bracket 2; the fan blade 4 is rotatably mounted on one side of the bracket 2 via the drive mechanism 3 (the drive mechanism 3 can be a brushless motor mounted on the bracket 2, powered by a power supply module to drive the fan blade 4 to rotate; since the brushless motor drive module is a conventional technology, it will not be elaborated further here); a cleaning device 5 is provided on one side of the fan blade 4. The cleaning device 5 cleans the fan blade 4 when it rotates by setting a brush block 53. By setting and adjusting the brush block 53, one side of the brush block 53 abuts against the outer surface of the fan blade 4. Thus, when the fan blade 4 rotates, the brush side of the brush block 53 can automatically clean the fan blade 4, which helps prevent the cooling performance of the cooling fan from decreasing and facilitates the normal heat dissipation of the 3D printing head 8.
[0030] Reference Figure 4 and Figure 5As shown, the cleaning device 5 includes an auxiliary block 51. A threaded pin 52 is fixedly inserted into the inner wall of the auxiliary block 51. An installation block 510 is fixedly installed on one side of the mounting frame 1 via a disassembly and assembly component 6. One end of the threaded pin 52 is rotatably mounted on the inner wall of the installation block 510 via a bearing. A nut 58 is threadedly connected to the outer surface of the threaded pin 52. The nut 58 is located on one side of the auxiliary block 51. A brush block 53 is slidably arranged on the inner wall of the auxiliary block 51. By setting the brush block 53, rotating and pushing the brush block 53 causes one side of the brush block 53 to abut against the outer surface of the fan blade 4. Then, rotating the nut 58 causes one side of the nut 58 to press against the auxiliary block 51, thus fixing the auxiliary block 51 and the installation block 510 together, thereby activating the heat dissipation mechanism. The fan blade 4 rotates, and when the fan blade 4 rotates, the brush side of the brush block 53 can clean the fan blade 4, causing small particles on the fan blade 4 to detach from the fan blade 4 and be blown out by the wind generated by the fan blade 4, thus facilitating the cleaning of these small particles. A connecting plate 54 is fixedly installed on one side of the brush block 53, and a spring 55 is fixedly installed on one side of the connecting plate 54. One end of the spring 55 and one end of the threaded pin 52 are fixedly installed with the same baffle 57. By setting the spring 55, the spring 55 will squeeze the brush block 53 connected to the connecting plate 54 without the action of other external forces, so that the brush side of the brush block 53 can always abut against the fan blade 4, ensuring that the brush block 53 can play a better cleaning role for the fan blade 4.
[0031] Reference Figure 4 and Figure 5 As shown, a round rod 56 is provided inside the spring 55. The two ends of the round rod 56 are fixedly installed on one side of the auxiliary block 51 and the baffle 57, respectively. By setting the round rod 56, the round rod 56 can guide and limit the spring 55, which helps to prevent the spring 55 from bending and failing to work properly. A rubber pad 59 is glued to one side of the nut 58, and the threaded pin 52 is slidably inserted into the rubber pad 59. By setting the rubber pad 59, the friction between the nut 58 and the auxiliary block 51 can be increased, making the nut 58 less likely to loosen.
[0032] Reference Figure 4 and Figure 5As shown, the disassembly and assembly assembly 6 includes two round hole blocks 61. One side of each round hole block 61 is symmetrically mounted on both sides of the mounting block 510. One side of each round hole block 61 abuts against one side of the frame. A pin 62 is symmetrically fixedly mounted on one side of the frame. The pin 62 is inserted into the inner wall of the round hole block 61. One end of the pin 62 has a frustum-shaped rubber block. Inserting the pin 62 into the inner wall of the round hole block 61 causes one side of the round hole block 61 to abut against one side of the frame. The end of the rubber block on the pin 62 is smaller. The rubber block is designed to be easily inserted into the inner wall of the round hole block 61. At the same time, the other end of the rubber block is larger, which can fix the pin 62 and the round hole block 61. This also makes the mounting block 510 detachable, which facilitates the cleaning and maintenance of the brush. A U-shaped block 63 is symmetrically fixed on one side of the frame. The outer surface of the round hole block 61 is inserted into the inner wall of the U-shaped block 63. By setting the U-shaped block 63, the U-shaped block 63 can quickly position the round hole block 61, making the mounting block 510 more secure.
[0033] Reference Figure 1 As shown, the 3D printer 7 has a 3D printing head 8 inside. The frame is bolted to one side of the 3D printing head 8. The 3D printer 7 uses motors in the X, Y, and Z dimensions to control the guide rail system, realizing the lifting, moving, and material supply of the printing head, ensuring the movement of the printing head in three-dimensional space. When the heat dissipation mechanism is working, it continuously drives the air around the 3D printing head 8 to flow rapidly, thereby cooling the 3D printing head 8 and preventing it from overheating, ensuring the stability of the printing process and the printing quality.
[0034] Working principle: Pushing the spring 55 compresses and deforms it. Then, rotating the brush block 53 causes one side of the brush block 53 to rotate to the side of the fan blade 4. Removing the external force on the spring 55 causes it to reset and press the brush block 53 connected to the connecting plate 54, ensuring that the brush side of the brush block 53 remains in contact with the fan blade 4. Rotating the nut 58 causes the rubber pad 59 on one side of the nut 58 to press the auxiliary block 51, fixing the auxiliary block 51 to the mounting block 510. This activates the cooling mechanism, causing the fan blade 4 to rotate. As the fan blade 4 rotates, the brush side of the brush block 53 cleans the fan blade 4, causing small particles on the fan blade 4 to detach and be blown out by the airflow generated by the fan blade 4, facilitating the cleaning of these small particles. Simultaneously, when 3D printing is required... When the print head 8 is dissipating heat, push the brush block 53, causing the connecting plate 54 to compress the spring 55, causing the spring 55 to deform until the brush block 53 is completely inserted into the inner wall of the auxiliary block 51. Then rotate the nut 58 to move the nut 58 away from the auxiliary block 51, and rotate the auxiliary block 51 to move the auxiliary block 51 away from the fan blade 4 until it reaches the appropriate position. Then fix the auxiliary block 51 with the nut 58, so that the brush block 53 will not affect the normal operation of the heat dissipation mechanism. Insert the pin 62 into the inner wall of the round hole block 61, and insert the round hole block 61 into the inner wall of the U-shaped block 63, so that one side of the round hole block 61 abuts against one side of the frame. One end of the rubber block on the pin 62 is smaller, making it easier to insert into the inner wall of the round hole block 61, while the other end of the rubber block is larger, which can fix the pin 62 and the round hole block 61.
Claims
1. A high-efficiency heat dissipation mechanism, comprising a mounting frame (1), characterized in that: A bracket (2) is fixedly installed on one side of the mounting frame (1). A drive mechanism (3) and a fan blade (4) are provided on one side of the bracket (2). The fan blade (4) is rotatably installed on one side of the bracket (2) through the drive mechanism (3). A cleaning device (5) is provided on one side of the fan blade (4). The cleaning device (5) cleans the fan blade (4) when the fan blade (4) rotates by setting a brush block (53).
2. The high-efficiency heat dissipation mechanism according to claim 1, characterized in that: The cleaning device (5) includes an auxiliary block (51), and a threaded pin (52) is fixedly inserted into the inner wall of the auxiliary block (51). An installation block (510) is fixedly installed on one side of the mounting frame (1) through a disassembly and assembly assembly (6). One end of the threaded pin (52) is rotatably installed on the inner wall of the installation block (510) through a bearing. A nut (58) is threadedly connected to the outer surface of the threaded pin (52). The nut (58) is located on one side of the auxiliary block (51). A brush block (53) is slidably arranged on the inner wall of the auxiliary block (51).
3. The high-efficiency heat dissipation mechanism according to claim 2, characterized in that: A connecting plate (54) is fixedly installed on one side of the brush block (53), and a spring (55) is fixedly installed on one side of the connecting plate (54). One end of the spring (55) and one end of the threaded pin (52) are fixedly installed with the same baffle (57).
4. The high-efficiency heat dissipation mechanism according to claim 3, characterized in that: The spring (55) has a round rod (56) inside, and the two ends of the round rod (56) are respectively fixedly installed on one side of the auxiliary block (51) and the baffle (57).
5. The high-efficiency heat dissipation mechanism according to claim 2, characterized in that: A rubber pad (59) is bonded to one side of the nut (58), and the threaded pin (52) is slidably inserted inside the rubber pad (59).
6. The high-efficiency heat dissipation mechanism according to claim 2, characterized in that: The disassembly and assembly assembly (6) includes two round hole blocks (61). One side of the two round hole blocks (61) is symmetrically installed on both sides of the mounting block (510). One side of the round hole block (61) abuts against one side of the frame. A pin (62) is symmetrically fixedly installed on one side of the frame. The pin (62) is inserted into the inner wall of the round hole block (61). One end of the pin (62) is provided with a frustum-shaped rubber block.
7. The high-efficiency heat dissipation mechanism according to claim 6, characterized in that: A U-shaped block (63) is symmetrically fixedly installed on one side of the frame, and the outer surface of the round hole block (61) is inserted into the inner wall of the U-shaped block (63).
8. A 3D printer, characterized by: The heat dissipation mechanism described in any one of claims 1-7 is disposed inside the 3D printer (7), and the 3D printer (7) is provided with a 3D printing head (8) inside the 3D printer (7), and the frame is mounted on one side of the 3D printing head (8) by bolts.