Fan heat dissipation assembly applied to server mainboard
Through the improved fan assembly structure and airflow organization, the problem of uneven heat dissipation of the server motherboard is solved, efficient and uniform heat dissipation and dust removal effects are achieved, and the stable operation of the server is guaranteed.
Patent Information
- Application Number
- CN202510702327.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-09-16
AI Technical Summary
The existing server motherboard fan assembly has uneven heat dissipation, resulting in heat accumulation in some areas. In addition, when independent fans are working, airflow interference is serious, making it difficult to form effective airflow organization, affecting the stable operation of the server.
A fan assembly with a rotating part and a gear structure is used. The rotating part is driven by a second motor to rotate, driving multiple gears and fan blades to inhale cold air in a rotational and revolving manner, and dust is intercepted through a conveying pipe and a dust collection assembly. Combined with a liquid-cooled radiator and a lifting plate driven by a threaded rod to clean the cooling fins, an S-shaped airflow path is formed to ensure even airflow distribution.
It achieves efficient and uniform air intake and heat dissipation, avoids local air intake shortage, performs dust removal simultaneously, ensures balanced temperature inside the server, and improves the server's operating stability and efficiency.
Smart Images

Figure CN120653075A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of servers, and in particular to a fan heat dissipation component applied to a server mainboard. Background Art
[0002] As the core component of the server, the server motherboard carries many key hardware. Its stable operation plays a vital role in ensuring business continuity. During the operation of the server, the electronic components on the motherboard, such as the CPU, GPU, and memory chips, will continue to generate a large amount of heat. The fan cooling assembly is a key component specifically used for the server motherboard. Its main function is to generate airflow through the operation of the fan to remove the heat from the motherboard, thereby effectively reducing the temperature of the motherboard and various components, ensuring that the server motherboard is always within the appropriate operating temperature range, maintaining stable and efficient operation of the server, and avoiding performance degradation, system failures, and even hardware damage caused by overheating.
[0003] Existing fan assemblies usually have a limited fixed installation range. Areas in the cabinet far away from the fans have difficulty obtaining sufficient cool air, which easily forms a heat dissipation blind spot. Although some use a multi-fan array layout, each fan works independently, and the airflows interfere with each other, making it difficult to form an orderly airflow organization, resulting in low efficiency and the inability to effectively deliver cool air to the heat-generating components. Summary of the Invention
[0004] In view of the deficiencies of the prior art, the present invention provides a fan heat dissipation assembly applied to a server motherboard, which solves the problem of uneven heat dissipation of the existing fan assembly leading to heat accumulation in some areas.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A fan heat dissipation component applied to a server motherboard, comprising a cabinet, a connecting box fixedly connected to the top of the cabinet, a connecting rod fixedly connected between the left and right sides of the inner wall of the connecting box, a second motor fixedly connected to the bottom of the connecting rod, a rotating part fixedly provided at the output end of the second motor, a first gear rotatably connected to the bottom of the rotating part, a plurality of second gears meshingly connected to the surface of the first gear, the plurality of second gears are all rotatably connected to the rotating part, the bottom ends of the plurality of second gears are fixedly connected to fan blades, the bottom of the connecting box is fixedly connected to an inner gear ring, the plurality of second gears are all meshedly connected to the inner gear ring, a conveying pipe is fixedly connected to the rear side of the connecting box, and a dust collection component is provided inside the conveying pipe.
[0006] By adopting the above technical solution, the effect of efficient and uniform air intake is achieved. The second motor drives the rotating part to rotate, which in turn causes the first gear to rotate. Multiple second gears rotate while revolving around the first gear, driving the fan blades to move in a circular trajectory. The rotation of the fan blades generates strong suction to quickly inhale the surrounding air, and the revolution expands the air intake range, introducing cold air more evenly into the cabinet, avoiding local air intake shortage or uneven air intake speed, and providing good heat dissipation air conditions for the server motherboard.
[0007] Preferably, the dust collecting assembly includes a dust collecting box, the dust collecting box is slidably connected to the conveying pipe, the rear side of the conveying pipe is rotatably connected to a rotating member, and the rear side of the dust collecting box is fixedly connected to a fixing member.
[0008] Preferably, a base is fixedly connected to the bottom of the cabinet, the rear side of the base is fixedly connected to the delivery pipe, and the top of the base is provided with evenly distributed air inlets.
[0009] Preferably, a plurality of installation boxes are fixedly connected between the left and right sides of the inner wall of the cabinet, a server unit is slidably connected inside the plurality of installation boxes, and a heat dissipation fin is fixedly connected to the top of the plurality of installation boxes.
[0010] Preferably, a plurality of sliding rods are fixedly connected to the tops of the plurality of installation boxes, and a lifting plate is slidably connected between adjacent plurality of sliding rods.
[0011] Preferably, a fixing box is fixedly connected to the rear side of the cabinet, a first motor is fixedly connected to the bottom of the fixing box, a threaded rod is fixedly provided at the output end of the first motor, and the threaded rod is threadedly connected to the multiple lifting plates.
[0012] Preferably, a plurality of ventilation slots are provided on both the left and right sides of the cabinet, and a plurality of connection boxes are fixedly connected to both the left and right sides of the cabinet.
[0013] Preferably, a plurality of hinges are fixedly connected to the front side of the cabinet, and cabinet doors are fixedly connected between the front sides of the plurality of hinges.
[0014] Preferably, evenly distributed rectangular grooves are provided on the surfaces of the plurality of lifting plates, and the plurality of lifting plates are slidably connected to adjacent heat dissipation fins.
[0015] Preferably, the bottom of the dust collecting box is made of polyester fiber, and a plurality of holes are provided on the bottom of the dust collecting box.
[0016] Working principle: When in use, the user turns on the second motor to drive the rotating part to rotate, causing the first gear at the bottom of the rotating part to rotate, and multiple second gears to revolve around the first gear while rotating, thereby driving the bottom fan blades to generate strong suction to inhale the surrounding air while revolving in a circular trajectory covering the top of the cabinet. The inhaled air passes through the delivery pipe on the rear side of the connection box, and is intercepted by the dust collection box in the delivery pipe to collect dust. When the dust collection box needs to be cleaned, the rotating part on the rear side of the delivery pipe is rotated, and it is taken out and cleaned and reinstalled by cooperating with the fixing part on the rear side of the dust collection box. The dust-removed air enters the base at the bottom of the cabinet, and the coolant of the liquid-cooled radiator in the base exchanges heat with the hot air. After absorbing heat, the coolant is cooled and circulated through the external cooling device. The cooled cold air is blown back to the cabinet through the air inlet on the top of the base. At the same time, the first motor drives the threaded rod to rotate, causing the lifting plate to move on the sliding rod. The rectangular grooves on the surface of the lifting plate cooperate with the heat dissipation fins to scrape off the dust and debris on the heat dissipation fins. The ventilation slots and connection boxes on the left and right sides of the cabinet guide the airflow to flow in an S shape in the cabinet, so that the airflow flows evenly through the slidingly connected server unit in the installation box, taking away the heat. The cabinet door rotates through the hinges, making it convenient for users to operate and maintain the equipment inside the cabinet, thereby achieving efficient heat dissipation and dust removal for the server motherboard and ensuring stable operation of the server.
[0017] The present invention provides a fan heat dissipation assembly for a server motherboard, which has the following beneficial effects: 1. The present invention drives the rotating part to rotate through the second motor, and when the rotating part rotates, the first gear and the second gear at the bottom are driven to rotate. At this time, the second gear rotates on its own while revolving around the first gear, achieving a more efficient and uniform air intake effect. The rotation of the fan blades can quickly inhale the surrounding air and generate strong suction; the revolution makes the air intake range no longer limited to a single area, but covers a large area of the top of the cabinet with a circular trajectory, introducing cold air more evenly into the interior of the cabinet, avoiding the problem of insufficient local air intake or uneven air intake speed.
[0018] 2. The present invention drives the fan blades to rotate through the second motor to inhale air from the inside of the cabinet. The air flow is transported through the delivery pipe. The dust in the air flow is intercepted and collected by the dust collection box, and the gas is transported to the base at the bottom and blown out from the air inlet. At the same time, the air outlet at the bottom blows up the dust in the cabinet, and then passes through the top fan blades and is sucked into the dust collection box to form a circulating airflow. The circulating airflow enables dust removal and heat dissipation to be carried out simultaneously, filtering dust during air intake and blowing up deposited dust during air exhaust for secondary recovery, thereby preventing dust accumulation from affecting heat dissipation efficiency. At the same time, continuous air circulation quickly takes away the heat of the equipment, thereby improving the stability of server operation.
[0019] 3. The present invention drives the threaded rod to rotate by the first motor, thereby driving multiple lifting plates to move on the sliding rod. When the lifting plates move, they can scrape off the dust and debris on the heat dissipation fins, making it convenient for the circulating air flow in the cabinet to clean the dust and debris, thereby preventing dust from accumulating on the surface of the heat dissipation fins to form an insulation layer, resulting in a decrease in heat dissipation efficiency.
[0020] 4. The present invention uses ventilation slots and connection boxes on both sides of the cabinet to make the airflow blown out from the bottom flow in an S-shape inside the cabinet. The S-shaped airflow can flow through each layer in the cabinet in turn, so that the equipment on each layer can fully contact with the cold air, ensuring that the heat is evenly taken away, avoiding the performance degradation of the equipment due to insufficient local heat dissipation. The S-shaped path allows the airflow to pass through each layer in a regular manner, reducing eddies or dead corners formed by airflow turbulence, making the temperature distribution in the cabinet more balanced, and ensuring the stable operation of all equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A perspective view of the present invention; Figure 2 It is a cross-sectional schematic diagram of the connection box of the present invention; Figure 3 It is a schematic cross-sectional view of the right side of the cabinet of the present invention; Figure 4 A schematic diagram of a lifting plate of the present invention; Figure 5 It is a schematic cross-sectional view of the right side of the connection box of the present invention; Figure 6 is a schematic diagram of the first gear of the present invention; Figure 7 It is a schematic diagram of the delivery pipe of the present invention; Figure 8 Schematic diagram of the dust box of the present invention.
[0022] Among them, 1. Cabinet; 2. Cabinet door; 3. Hinge; 4. Base; 5. Air inlet; 6. Connection box; 7. Connection box; 8. Installation box; 9. Server unit; 10. Heat sink fin; 11. Slide rod; 12. First motor; 13. Threaded rod; 14. Lifting plate; 15. Connecting rod; 16. Second motor; 17. Rotating part; 18. Internal gear ring; 19. First gear; 20. Second gear; 21. Fan blade; 22. Conveying pipe; 23. Fixed box; 24. Dust collection box; 25. Rotating part; 26. Fixed part; 27. Ventilation slot. DETAILED DESCRIPTION
[0023] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0024] Please see the attached Figure 1 , Attachment Figure 5 and attached Figure 6 An embodiment of the present invention provides a fan heat dissipation assembly for a server motherboard, including a cabinet 1, a connection box 7 fixedly connected to the top of the cabinet 1, a connection rod 15 fixedly connected between the left and right sides of the inner wall of the connection box 7, a second motor 16 fixedly connected to the bottom of the connection rod 15, a rotating member 17 fixedly provided at the output end of the second motor 16, a first gear 19 rotatably connected to the bottom of the rotating member 17, a plurality of second gears 20 meshingly connected to the surface of the first gear 19, the plurality of second gears 20 are all rotatably connected to the rotating member 17, the bottom ends of the plurality of second gears 20 are all fixedly connected to fan blades 21, an inner gear ring 18 fixedly connected to the bottom of the connection box 7, the plurality of second gears 20 are all meshedly connected to the inner gear ring 18, a delivery pipe 22 fixedly connected to the rear side of the connection box 7, and a dust collection assembly is provided inside the delivery pipe 22.
[0025] Specifically, the second motor 16 drives the rotating part 17 to rotate, and the first gear 19 at the bottom of the rotating part 17 rotates accordingly. Since multiple second gears 20 are meshed and connected with the surface of the first gear 19, the second gear 20 rotates while revolving around the first gear 19, thereby driving the fan blades 21 fixed at the bottom to generate strong suction to quickly inhale the surrounding air during rotation, while covering the top of the cabinet 1 with a circular trajectory to revolve, introducing cold air more evenly into the interior of the cabinet 1, achieving an efficient and uniform air suction effect, providing good air conditions for the heat dissipation of the server motherboard, and ensuring stable operation of the server.
[0026] See attached Figure 7 and attached Figure 8 The dust collecting assembly includes a dust collecting box 24 , which is slidably connected to the conveying pipe 22 , a rotating member 25 is rotatably connected to the rear side of the conveying pipe 22 , and a fixing member 26 is fixedly connected to the rear side of the dust collecting box 24 .
[0027] Specifically, the second motor 16 drives the rotating part 17 to rotate, causing the first gear 19 to rotate, and multiple second gears 20 revolve around the first gear 19 while rotating, driving the bottom fan blades 21 to rotate to generate suction to inhale the surrounding air, while revolving in a circular trajectory to evenly introduce cold air into the cabinet 1, and the inhaled air enters the delivery pipe 22 on the rear side of the connection box 7. In the delivery pipe 22, the dust in the airflow is intercepted and collected by the dust box 24. When the dust box 24 needs to be cleaned, the user rotates the rotating part 25 on the rear side of the delivery pipe 22 to remove the dust box 24 from the delivery pipe 22, empty the dust and reinstall it, thereby achieving efficient and uniform air suction and dust removal, creating good conditions for the heat dissipation of the server motherboard, and ensuring stable operation of the server.
[0028] See attached Figure 2 and attached Figure 3 The bottom of the cabinet 1 is fixedly connected to a base 4, the rear side of the base 4 is fixedly connected to the delivery pipe 22, and the top of the base 4 is provided with evenly distributed air inlets 5.
[0029] Specifically, the second motor 16 drives the fan blades 21 to inhale the hot air in the cabinet 1. The inhaled air passes through the delivery pipe 22 on the rear side of the connecting box 7. The dust is intercepted by the dust collecting box 24 in the delivery pipe 22 and then enters the base 4. A liquid cooling radiator is provided in the base 4. In its internal coolant circulation channel, the coolant exchanges heat with the incoming hot air. After absorbing heat, it is cooled and recirculated through an external cooling device. The cooled cold air is blown back into the cabinet 1 through the air inlets 5 evenly distributed on the top of the base 4, forming a circulating airflow, which continuously dissipates heat for the server motherboard, realizes efficient and uniform air suction, dust removal and cooling, and ensures stable operation of the server.
[0030] See attached Figure 2 and attached Figure 4 A plurality of mounting boxes 8 are fixedly connected between the left and right sides of the inner wall of the cabinet 1, a server unit 9 is slidably connected inside the plurality of mounting boxes 8, and a heat dissipation fin 10 is fixedly connected to the top of the plurality of mounting boxes 8.
[0031] Specifically, multiple installation boxes 8 provide installation locations for the server unit 9 and facilitate its sliding installation and disassembly, making it easy for users to maintain and replace the server unit 9. The heat dissipation fins 10 can increase the heat dissipation area and quickly dissipate the heat generated by the server unit 9 in the installation box 8 to the surrounding air, thereby improving the heat dissipation efficiency, preventing the server unit 9 from performance degradation or failure due to overheating, and ensuring the stable operation of the server.
[0032] See attached Figure 3 and attached Figure 4 A plurality of slide bars 11 are fixedly connected to the tops of the plurality of installation boxes 8 , and a lifting plate 14 is slidably connected between the adjacent plurality of slide bars 11 .
[0033] Specifically, multiple slide bars 11 provide support and guidance for the lifting plate 14, so that the lifting plate 14 can slide stably between adjacent slide bars 11. When it is necessary to clean the dust and debris on the heat sink 10, the lifting plate 14 can be driven to move on the slide bar 11 through the driving mechanism, and the lifting plate 14 is used to scrape off the dust and debris on the heat sink 10, thereby realizing automatic cleaning of the heat sink 10, maintaining good heat dissipation performance of the heat sink 10, and thereby ensuring the heat dissipation effect of the server unit 9 and ensuring stable operation of the server.
[0034] See attached Figure 2 and attached Figure 3 A fixing box 23 is fixedly connected to the rear side of the cabinet 1, and a first motor 12 is fixedly connected to the bottom of the fixing box 23. A threaded rod 13 is fixedly provided at the output end of the first motor 12, and the threaded rod 13 is threadedly connected to the multiple lifting plates 14.
[0035] Specifically, the first motor 12 drives the threaded rod 13 to rotate. When the threaded rod 13 rotates, it can drive the lifting plate 14 to move along the axial direction of the threaded rod 13, thereby realizing the lifting and lowering movement of the lifting plate 14 on the slide rod 11, thereby achieving the purpose of automatically cleaning dust and debris on the heat dissipation fins 10, maintaining the heat dissipation performance of the heat dissipation fins 10, and ensuring the normal operation of the server unit 9.
[0036] See attached Figure 1 and attached Figure 2 A plurality of ventilation slots 27 are provided on both sides of the cabinet 1 , and a plurality of connection boxes 6 are fixedly connected to both sides of the cabinet 1 .
[0037] Specifically, the multiple ventilation slots 27 and the connection box 6 on the left and right sides of the cabinet 1 are used to guide the air flow, so that the air forms a specific flow path in the cabinet 1, allowing the air flow to flow more evenly through each installation box 8 and the server unit 9, thereby improving the uniformity and efficiency of heat dissipation and ensuring the stable operation of the server unit 9.
[0038] See attached Figure 1 A plurality of hinges 3 are fixedly connected to the front side of the cabinet 1 , and cabinet doors 2 are fixedly connected between the front sides of the plurality of hinges 3 .
[0039] Specifically, the cabinet door 2 can rotate around the axis of the hinge 3, and the front side of the cabinet 1 can be closed by the cabinet door 2 to protect the installation box 8, server unit 9 and other equipment inside the cabinet 1 from interference and damage from external factors. At the same time, it is convenient for the user to open the cabinet door 2 to operate, maintain and manage the equipment inside the cabinet 1.
[0040] See attached Figure 2 and attached Figure 4 The surfaces of the multiple lifting plates 14 are each provided with evenly distributed rectangular grooves, and the multiple lifting plates 14 are each slidably connected to adjacent heat dissipation fins 10 .
[0041] Specifically, when the first motor 12 drives the threaded rod 13 to rotate so that the lifting plate 14 moves on the slide rod 11, the two sides of the heat dissipating fins 10 inserted in the rectangular groove are in close contact with the inner wall of the rectangular groove. During the movement of the lifting plate 14, the dust and debris on the surface of each heat dissipating fin 10 can be effectively scraped off to prevent dust from accumulating on the surface of the heat dissipating fin 10 to form an insulating layer, thereby ensuring the heat dissipation efficiency of the heat dissipating fin 10 and ensuring the stable operation of the server unit 9.
[0042] See attached Figure 8 The bottom of the dust box 24 is made of polyester fiber, and a plurality of holes are provided on the bottom of the dust box 24 .
[0043] Specifically, the bottom of the dust box 24 is made of polyester fiber. Polyester fiber has good filtering performance and can effectively intercept dust and debris. At the same time, it has certain flexibility and wear resistance and can withstand a certain degree of friction and collision. The purpose of opening multiple holes at the bottom of the dust box 24 is to allow air to circulate through the holes, so that dust can be more easily adsorbed into the dust box 24 under the action of airflow, while avoiding excessive air pressure in the dust box 24 to ensure the dust collection effect.
[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A fan heat dissipation assembly for a server motherboard, comprising a cabinet (1), characterized in that: The cabinet (1) is fixedly connected to a connection box (7) at the top, a connection rod (15) is fixedly connected between the left and right sides of the inner wall of the connection box (7), a second motor (16) is fixedly connected to the bottom of the connection rod (15), a rotating member (17) is fixedly provided at the output end of the second motor (16), a first gear (19) is rotatably connected to the bottom of the rotating member (17), a plurality of second gears (20) are meshedly connected to the surface of the first gear (19), the plurality of second gears (20) are all rotatably connected to the rotating member (17), the bottom ends of the plurality of second gears (20) are fixedly connected to fan blades (21), the bottom of the connection box (7) is fixedly connected to an inner gear ring (18), the plurality of second gears (20) are all meshedly connected to the inner gear ring (18), a delivery pipe (22) is fixedly connected to the rear side of the connection box (7), and a dust collection component is provided inside the delivery pipe (22).
2. The fan heat dissipation assembly for a server motherboard according to claim 1, characterized in that: The dust collecting assembly comprises a dust collecting box (24), the dust collecting box (24) is slidably connected to the delivery pipe (22), a rotating member (25) is rotatably connected to the rear side of the delivery pipe (22), and a fixing member (26) is fixedly connected to the rear side of the dust collecting box (24).
3. The fan heat dissipation assembly for a server motherboard according to claim 1, wherein: The bottom of the cabinet (1) is fixedly connected to a base (4), the rear side of the base (4) is fixedly connected to the delivery pipe (22), and the top of the base (4) is provided with evenly distributed air inlets (5).
4. The fan heat dissipation assembly for a server motherboard according to claim 1, wherein: A plurality of installation boxes (8) are fixedly connected between the left and right sides of the inner wall of the cabinet (1), a server unit (9) is slidably connected inside the plurality of installation boxes (8), and a heat dissipation fin (10) is fixedly connected to the top of the plurality of installation boxes (8).
5. The fan heat dissipation assembly for a server motherboard according to claim 4, characterized in that: A plurality of slide bars (11) are fixedly connected to the tops of the plurality of installation boxes (8), and a lifting plate (14) is slidably connected between the adjacent plurality of slide bars (11).
6. The fan heat dissipation assembly for a server motherboard according to claim 1, characterized in that: A fixing box (23) is fixedly connected to the rear side of the cabinet (1), a first motor (12) is fixedly connected to the bottom of the fixing box (23), a threaded rod (13) is fixedly provided at the output end of the first motor (12), and the threaded rod (13) is threadedly connected to a plurality of lifting plates (14).
7. The fan heat dissipation assembly for a server motherboard according to claim 1, characterized in that: A plurality of ventilation slots (27) are provided on both the left and right sides of the cabinet (1), and a plurality of connection boxes (6) are fixedly connected to both the left and right sides of the cabinet (1).
8. The fan heat dissipation assembly for a server motherboard according to claim 1, characterized in that: The front side of the cabinet (1) is fixedly connected to a plurality of hinges (3), and cabinet doors (2) are fixedly connected between the front sides of the plurality of hinges (3).
9. The fan heat dissipation assembly for a server motherboard according to claim 5, characterized in that: Evenly distributed rectangular grooves are provided on the surfaces of the plurality of lifting plates (14), and the plurality of lifting plates (14) are slidably connected to adjacent heat dissipation fins (10).
10. The fan heat dissipation assembly for a server motherboard according to claim 2, characterized in that: The bottom of the dust collecting box (24) is made of polyester fiber, and a plurality of holes are provided on the bottom of the dust collecting box (24).