Server cooling fan with non-fixed fan blades
By designing an adjustable non-fixed fan blade structure, combined with a fixed insert rod and a spring connecting plate, the stability problem of the fan blade when the motor speed decreases is solved, realizing the adjustment of the fan blade angle and the control of air volume and noise, thus improving the stability and adjustability of the equipment.
Patent Information
- Application Number
- CN202520348090.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing server cooling fans with non-fixed blades cannot accurately move to the designated position when the motor speed decreases, resulting in poor stability and the inability to adjust the blade angle to regulate airflow and noise levels.
A non-fixed structure with adjustable fan blade angle was designed. The combination of a fixing rod and a fixing disc ensures that the fan blade is fixed in a designated position. Combined with the design of springs and connecting plates, the stability of the fan blade is adjusted.
Adjustable fan blade angles have been achieved, improving fan stability and the ability to regulate airflow and noise, thus enhancing the stability of the equipment.
Smart Images

Figure CN223708031U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to server heat dissipation equipment technical field, concretely is a server heat dissipation fan with non-fixed fan blades. BACKGROUND
[0002] A server is a specific IT device that provides computing power and runs software applications in a network environment. The server heat dissipation fan is one of the main heat dissipation devices of the server, which can be used to blow away the heat generated during the operation of the server, preventing the server from being burned due to high temperature.
[0003] The utility model patent with publication number CN219711832U discloses a server heat dissipation fan with non-fixed fan blades. Under normal non-rotation, part of the fan blades will slide along the outer ring of the bearing to the lowest position due to gravity, causing the fan blade distribution of the overall fan to be non-uniformly symmetric. The center of gravity of the overall fan blade module is in a state of being heavier at the bottom and lighter at the top. When external airflow blows onto the specially designed fan blade device, the fan cannot be driven by external airflow due to uneven center of gravity and abnormal placement of the fan blades, and is in a stopped state.
[0004] However, during implementation, the fan blades need to be moved by centrifugal force, and once the fan blades are moved to the designated position, they cannot be fixed. If the motor speed is reduced, the fan blades cannot be accurately moved to the designated position, affecting the stability of the fan blades. In addition, the inclination angle of the fan blades cannot be adjusted during use, and the angle of the fan blades cannot be adjusted to regulate the air volume and the noise level of the fan, resulting in poor adjustability and poor stability. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a server heat dissipation fan with non-fixed fan blades to solve the problems raised in the background.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a server heat dissipation fan with non-fixed fan blades, comprising a fan housing, a fan top cover, and a mounting bin. The top of the fan housing is uniformly provided with four groups of first screw holes, and the top of the fan housing is provided with a fan top cover. A motor is installed at the middle position of the bottom inside the fan housing, and the output end of the motor is provided with a rotating shaft. The top of the rotating shaft is provided with a mounting bin, and the outer side of the mounting bin is uniformly provided with six groups of bearings. The inside of each bearing is provided with a rotating rod, and the end of the rotating rod away from the mounting bin is provided with a fan blade. The bottom inside the mounting bin is uniformly provided with six groups of sliding grooves. The inside of each sliding groove is provided with a sliding block, and the top of the sliding block is provided with a sliding plate. The outer side of the sliding plate is provided with a fixed insertion rod. The bottom of both ends of the fan housing is provided with an air inlet.
[0007] Preferably, the rotating rod is provided with a fixing disc at one end away from the fan blade, and the fixing disc is uniformly provided with a fixing socket at one end away from the rotating rod.
[0008] Preferably, the mounting hole is provided at the center of the top of the mounting bin, and the mounting rod is mounted in the mounting hole.
[0009] Preferably, the mounting rod is provided with a spring outside, one end of the spring is connected with the mounting bin, and the other end of the spring away from the mounting bin is connected with the connecting plate.
[0010] Preferably, the two ends of the lifting plate are hinged with a connecting rod, and one end of the connecting rod away from the lifting plate is hinged with the sliding plate.
[0011] Preferably, the top of the fan top cover is uniformly provided with four groups of second screw holes, and the mounting bolt is screwed in the second screw hole.
[0012] Preferably, the fan top cover is provided with an air outlet inside, and the protection fence rod is uniformly mounted in the air outlet.
[0013] Compared with the prior art, the fan blade for the non-fixed server heat dissipation fan has the beneficial effects that:
[0014] 1. The fan blade for the non-fixed server heat dissipation fan is provided with a fan blade, a bearing and a rotating rod, the rotating rod can rotate in the bearing during use, the rotating rod drives the fan blade to rotate, the inclination angle of the fan blade can be adjusted, the air volume and the noise of the device can be adjusted by adjusting the angle of the fan blade.
[0015] 2. The fan blade for the non-fixed server heat dissipation fan is provided with a fixing disc, a sliding plate and a fixing plug rod, the fixing plug rod is inserted into the corresponding fixing socket in the fixing disc after the fan blade is adjusted to a specified angle, the fixing disc is limited by the fixing plug rod, the rotating rod and the fan blade can not rotate during use, the fan blade can be fixed, and the stability of the device is improved.
[0016] 3. The fan blade for the non-fixed server heat dissipation fan is provided with a connecting plate, a mounting rod, a spring and a lifting plate, the spring is elastically driven to pull the connecting plate during use, the connecting plate drives the mounting rod to move, the mounting rod drives the lifting plate to move, the lifting plate pushes the two groups of sliding plates to move through the two groups of connecting rods, and the fixing plug rod is inserted into the fixing socket. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a front view of the utility model;
[0018] Figure 2 It is the installation bin main view section view schematic diagram of the utility model;
[0019] Figure 3 It is the installation bin plan view section view schematic diagram of the utility model;
[0020] Figure 4 It is the fixed disc side view schematic diagram of the utility model;
[0021] Figure 5 It is the fan top cover plan view schematic diagram of the utility model.
[0022] In the drawing: 1, fan shell; 2, air inlet; 3, fan blade; 4, first screw hole; 5, fan top cover; 6, protection fence pole; 7, air outlet; 8, installation bin; 9, motor; 10, rotating shaft; 11, mounting bolt; 12, second screw hole; 13, bearing; 14, fixed disc; 15, sliding plate; 16, connecting rod; 17, connecting plate; 18, mounting rod; 19, mounting hole; 20, spring; 21, fixed insertion rod; 22, sliding groove; 23, lifting plate; 24, sliding block; 25, fixed insertion hole; 26, rotating rod. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0024] Please refer to Figures 1-5 The utility model provides an embodiment: a fan blade is non - fixed server heat dissipation fan, including fan shell 1, fan top cover 5 and installation bin 8, the top of fan shell 1 is evenly provided with four groups first screw hole 4, and the top of fan shell 1 is installed with fan top cover 5, the inside bottom of fan shell 1 is installed with motor 9 at the middle position, here motor 9 model can be Y90S-2, and the output end of motor 9 is installed with rotating shaft 10, and the top of rotating shaft 10 is installed with installation bin 8, and the outside of installation bin 8 is evenly installed with six groups bearings 13, the inside of bearing 13 is all installed with rotating rod 26, and the end of rotating rod 26 away from installation bin 8 is all installed with fan blade 3, and the inside bottom of installation bin 8 is evenly provided with six groups sliding grooves 22, the inside of sliding groove 22 is all slidingly installed with sliding block 24, and the top of sliding block 24 is all installed with sliding plate 15, the outside of sliding plate 15 is all installed with fixed insertion rod 21, and the bottom of both ends of fan shell 1 is provided with air inlet 2.
[0025] As Figures 1-4As shown, the end of the rotating rod 26 away from the fan blade 3 is provided with a fixed disc 14, and the end of the fixed disc 14 away from the rotating rod 26 is uniformly provided with a fixed insertion hole 25. After the fan blade 3 is adjusted to a specified angle, the fixed insertion rod 21 can be inserted into the corresponding fixed insertion hole 25 of the fixed disc 14. The fixed disc 14 is limited by the fixed insertion rod 21, which can prevent the rotating rod 26 and the fan blade 3 from rotating during use, that is, the fan blade 3 is fixed, which is beneficial to improve the stability of the device.
[0026] As shown in the figure, Figures 1-3 The center of the top of the installation bin 8 is provided with a mounting hole 19, and the inside of the mounting hole 19 is provided with a mounting rod 18. The top of the mounting rod 18 is provided with a connecting plate 17, and the bottom of the mounting rod 18 is provided with a lifting plate 23. The outside of the mounting rod 18 is provided with a spring 20. One end of the spring 20 is connected with the installation bin 8, and the end of the spring 20 away from the installation bin 8 is connected with the connecting plate 17. Both ends of the lifting plate 23 are hinged with a connecting rod 16, and the end of the connecting rod 16 away from the lifting plate 23 is hinged with a sliding plate 15. In use, the elastic effect of the spring 20 pulls the connecting plate 17, the connecting plate 17 drives the mounting rod 18 to move, and the mounting rod 18 drives the lifting plate 23 to move together, so that the lifting plate 23 pushes the two groups of sliding plates 15 through the two groups of connecting rods 16 to move, and the fixed insertion rod 21 is inserted into the fixed insertion hole 25.
[0027] As shown in the figure, Figures 1-5 The top of the fan top cover 5 is uniformly provided with four groups of second screw holes 12, and the inside of the second screw hole 12 is provided with a mounting bolt 11. The fan top cover 5 is covered on the fan shell 1, and the mounting bolt 11 is screwed into the first screw hole 4 and the second screw hole 12 at the same time, so that the fan shell 1 and the fan top cover 5 are firmly installed. The inside of the fan top cover 5 is provided with an air outlet 7, and the inside of the air outlet 7 is uniformly provided with a protection rod 6. The protection rod 6 can prevent the staff from accidentally touching the fan blade 3.
[0028] Working principle:
[0029] Before use, the staff can first pull the connecting plate 17 upwards, the connecting plate 17 stretches the spring 20, and the connecting plate 17 drives the mounting rod 18 to move upwards together, the mounting rod 18 drives the lifting plate 23 to move, so that the lifting plate 23 pulls the two groups of sliding plates 15 through the two groups of connecting rods 16 to move, and the sliding plate 15 drives the fixed insertion rod 21 to move. The sliding plate 15 can be taken out from the fixed insertion hole 25, so that the limiting of the fixed insertion rod 21 to the fixed disc 14 is released, so that the fixed disc 14 and the rotating rod 26 can rotate;
[0030] Then the staff can rotate, namely the inclination angle of the fan blade 3 can be adjusted, by adjusting the angle of the fan blade 3, so as to adjust the air volume and noise of the device;
[0031] After the adjustment is completed, the staff releases the connecting plate 17, at this time, the elastic effect of the spring 20 makes it pull the connecting plate 17 to move downward and reset, the connecting plate 17 drives the mounting rod 18 to move, the mounting rod 18 drives the lifting plate 23 to move together, so that the lifting plate 23 pushes the two groups of sliding plates 15 to move at the same time through the two groups of connecting rods 16, the sliding plate 15 drives the fixed insertion rod 21 to move, that is, the fixed insertion rod 21 is inserted into the corresponding fixed insertion hole 25 inside the fixed disc 14, the fixed disc 14 is limited by the fixed insertion rod 21, which can prevent the rotation of the rotating rod 26 and the fan blade 3 during use, that is, the fan blade 3 can be fixed, which is beneficial to improve the stability of the device;
[0032] Then the staff can cover the fan top cover 5 on the fan shell 1, and screw the mounting bolt 11 into the first screw hole 4 and the second screw hole 12 at the same time, so as to firmly install the fan shell 1 and the fan top cover 5;
[0033] In use, the device is connected to the power supply, the motor 9 is powered on, the motor 9 drives the mounting bin 8 to rotate through the rotating shaft 10, that is, the fan blade 3 is driven to rotate, so that the gas enters the fan shell 1 through the air inlet 2, and is blown out to the server through the air outlet 7.
[0034] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A server cooling fan with non-fixed blades, comprising a fan housing (1), a fan top cover (5), and a mounting compartment (8), characterized in that: The top of the fan housing (1) is uniformly provided with four sets of first screw holes (4), and the top of the fan housing (1) is provided with a fan top cover (5). The bottom of the fan housing (1) is provided with a motor (9), and the output end of the motor (9) is provided with a rotating shaft (10). The top of the rotating shaft (10) is provided with a mounting chamber (8), and the outside of the mounting chamber (8) is uniformly provided with six sets of bearings (13). The inside of each bearing (13) is provided with a rotating rod (26), and the end of the rotating rod (26) away from the mounting chamber (8) is provided with a fan blade (3). The bottom of the inside of the mounting chamber (8) is uniformly provided with six sets of sliding grooves (22). The inside of each sliding groove (22) is provided with a sliding block (24), and the top of each sliding groove (22) is provided with a sliding plate (15). The outside of each sliding plate (15) is provided with a fixing rod (21). The bottom of both ends of the fan housing (1) is provided with an air inlet (2).
2. A server cooling fan with non-fixed blades according to claim 1, characterized in that: The rotating rod (26) is equipped with a fixed disc (14) at the end away from the fan blade (3), and the fixed disc (14) is evenly provided with fixed insertion holes (25) at the end away from the rotating rod (26).
3. A server cooling fan with non-fixed blades according to claim 1, characterized in that: An installation hole (19) is provided at the center of the top of the installation chamber (8), and an installation rod (18) is installed inside the installation hole (19). A connecting plate (17) is installed on the top of the installation rod (18), and a lifting plate (23) is installed on the bottom of the installation rod (18).
4. A server cooling fan with non-fixed blades according to claim 3, characterized in that: A spring (20) is sleeved on the outside of the mounting rod (18). One end of the spring (20) is connected to the mounting chamber (8), and the end of the spring (20) away from the mounting chamber (8) is connected to the connecting plate (17).
5. A server cooling fan with non-fixed blades according to claim 3, characterized in that: Both ends of the lifting plate (23) are hinged with connecting rods (16), and the end of the connecting rod (16) away from the lifting plate (23) is hinged to the sliding plate (15).
6. A server cooling fan with non-fixed blades according to claim 1, characterized in that: The top of the fan cover (5) is evenly provided with four sets of second screw holes (12), and each of the second screw holes (12) is threaded with a mounting bolt (11).
7. A server cooling fan with non-fixed blades according to claim 1, characterized in that: The fan top cover (5) has an air outlet (7) inside, and protective baffles (6) are evenly installed inside the air outlet (7).
Citation Information
Patent Citations
Server cooling fan with non-fixed fan blades
CN219711832U