A fan with forward and reverse rotation cooperates with a telescopic air guide cover radiator

Abstract

The utility model discloses a kind of positive and negative rotation fan collaborative telescopic air deflector radiator, the fan includes radiator, the outside of radiator is fixedly connected with frame, the back of frame is fixedly connected with baffle, the inside of baffle is fixedly connected with motor, the output end of motor is fixedly connected with sleeve box, the outside of sleeve box is rotatably connected with fan blade, the output end of motor extends to the inside of sleeve box, and the output end of motor is fixedly connected with first electric telescopic rod, the output end of first electric telescopic rod is slidably connected with fixed block, the outside of fixed block is fixedly connected with mounting sleeve, the inside of mounting sleeve is rotatably connected with connecting piece, fan blade is fixedly connected to the inside of connecting piece, compared with the existing positive and negative rotation fan collaborative telescopic air deflector radiator, the utility model can improve fan heat dissipation efficiency greatly by design.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, specifically relating to a forward and reverse fan with a telescopic air guide shroud heat sink. Background Technology

[0002] In the heat dissipation systems of electronic devices (such as computer graphics cards and servers) and engineering machinery, the combination of fans and air guides plays a crucial role in heat dissipation.

[0003] Traditional cooling fans typically rotate in only one direction, resulting in a fixed airflow direction. This makes it difficult to flexibly adjust the airflow direction to meet different cooling needs, thus limiting cooling efficiency. In electronic devices, different components may have different heat levels and cooling requirements, and a unidirectional rotating fan cannot simultaneously meet the cooling requirements of multiple components. In addition, the existing air guide structure is fixed, and the relative position between the fan and the air guide is difficult to adjust, resulting in uneven gaps between the fan and the air guide, which affects cooling efficiency. Furthermore, when the fan stops running, the airflow is prone to backflow, reducing cooling efficiency. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a forward and reverse rotating fan with a telescopic air guide shroud heat sink. This fan solves the problem that under the prior art, different components may have different heat generation levels and heat dissipation requirements, and a unidirectional rotating fan is difficult to meet the heat dissipation requirements of multiple components at the same time.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a forward and reverse fan coordinated telescopic air guide radiator. The fan includes a radiator, a frame is fixedly connected to the outside of the radiator, a baffle is fixedly connected to the back of the frame, a motor is fixedly connected to the inside of the baffle, a sleeve is fixedly connected to the output end of the motor, a fan blade is rotatably connected to the outside of the sleeve, the output end of the motor extends into the inside of the sleeve, and a first electric telescopic rod is fixedly connected to the output end of the motor. A fixing block is slidably connected to the output end of the first electric telescopic rod, an mounting sleeve is fixedly connected to the outside of the fixing block, a connecting piece is rotatably connected to the inside of the mounting sleeve, and the fan blade is fixedly connected to the inside of the connecting piece.

[0008] When using the fan with this technical solution, the first electric telescopic rod is driven, and then the collar rises synchronously. At this time, the column drives the connecting frame to rise, and then the limit rod rises synchronously. At this time, the driven plate is pushed. After being squeezed, the driven plate tilts, thereby squeezing the connecting piece. The connecting piece will rotate inside the mounting sleeve, so that the angle of the fan blades can be tilted to meet different heat dissipation scenarios.

[0009] Preferably, multiple sets of spoilers are fixedly connected to the outside of the fan blades, a collar is fixedly connected to the output end of the first electric telescopic rod, a fixing plate is fixedly connected to the outside of the collar, and a fixing disc is fixedly connected to one end of the fixing plate.

[0010] Furthermore, a groove is provided on the output end of the first electric telescopic rod, and a slider is fixedly connected to the inner side wall of the fixed block at a position corresponding to the groove, with the groove and slider being used in a compatible manner.

[0011] Furthermore, a column is fixedly connected to the top of the fixed plate, and a connecting frame is rotatably connected to the outside of the column. A lead screw is threaded to the end of the connecting frame away from the column, and a limit rod is rotatably connected to the top of the lead screw.

[0012] Furthermore, a connecting plate is fixedly connected to the top of the limiting rod, and a driven plate is rotatably connected to the outside of the connecting plate. The end of the driven plate away from the connecting plate extends to the outside of the connecting piece and is fixedly connected to the connecting piece.

[0013] Furthermore, a rectangular frame is fixedly connected to one corner of the inner side of the frame, and a sliding plate is slidably connected inside the rectangular frame. A second electric telescopic rod is fixedly connected to one end of the inner side of the rectangular frame. The second electric telescopic rod is fixedly connected to one end of the sliding plate, and a wind guide is fixedly connected to the end of the sliding plate away from the second electric telescopic rod.

[0014] Furthermore, a waist groove is provided on the outer wall of the rectangular frame, and a placement groove is provided at the bottom of the waist groove. The two ends of the waist groove are symmetrically inclined. A swing rod is rotatably connected to the outside of the sliding plate, and a stop rod is fixedly connected inside the swing rod. The stop rod is slidably connected inside the waist groove.

[0015] Furthermore, an elastic retaining strip is fixedly connected to the top of the sliding plate, and a first retaining groove and a second retaining groove are respectively opened at the top of the swing rod corresponding to the position of the elastic retaining strip.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The fan of this utility model, through the design of the driven plate, drives the first electric telescopic rod, and then the collar rises synchronously. At this time, the column drives the connecting frame to rise, and then the limit rod rises synchronously. At this time, the driven plate is pushed, and the driven plate tilts after being squeezed, thereby squeezing the connecting piece. The connecting piece will rotate inside the mounting sleeve, so that the angle of the fan blade is tilted to meet different heat dissipation scenarios.

[0019] 2. The fan of this utility model uses a sliding plate design. The distance between the fan blades and the air guide cover affects the airflow. When the distance is increased, the air volume will increase during the diffusion process, but the air pressure will decrease accordingly. When the distance is decreased, the air volume will be more concentrated, the air pressure will increase, and the air volume will decrease relatively. By adjusting the distance, the combination of air volume and air pressure can be flexibly adjusted according to actual needs to achieve the best heat dissipation effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;

[0021] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the fixing block structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the collar structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the back structure of the frame of this utility model;

[0025] Figure 6 This is a schematic diagram of the rectangular frame and sliding plate structure of this utility model;

[0026] Figure 7 This is a schematic diagram of the internal structure of the rectangular frame of this utility model.

[0027] The labels in the attached diagram are as follows: 1. Radiator; 2. Frame; 3. Baffle; 4. Sleeve; 5. Fan blade; 501. First electric telescopic rod; 6. Fixing block; 7. Mounting sleeve; 8. Connecting piece; 9. Collar; 10. Fixing piece; 11. Fixing plate; 12. Column; 13. Connecting frame; 14. Lead screw; 15. Limiting rod; 16. Driven plate; 17. Rectangular frame; 18. Sliding plate; 19. Second electric telescopic rod; 20. Air guide cover; 21. Waist groove; 22. Placement groove; 23. Swing rod; 24. Stop rod; 25. Elastic retaining strip. Detailed Implementation

[0028] This specific embodiment is a forward and reverse fan coordinated telescopic air guide shroud heat sink, the structural diagram of which is shown below. Figure 1-7As shown, the fan includes a radiator 1, a frame 2 fixedly connected to the outside of the radiator 1, a baffle 3 fixedly connected to the back of the frame 2, a motor fixedly connected inside the baffle 3, a housing 4 fixedly connected to the output end of the motor, a fan blade 5 rotatably connected to the outside of the housing 4, the output end of the motor extending into the inside of the housing 4, and a first electric telescopic rod 501 fixedly connected to the output end of the motor, a fixing block 6 slidably connected to the output end of the first electric telescopic rod 501, an mounting sleeve 7 fixedly connected to the outside of the fixing block 6, a connecting piece 8 rotatably connected inside the mounting sleeve 7, and the fan blade 5 fixedly connected inside the connecting piece 8. The radiator 1 and the frame 2 are fixedly connected by bolts, the baffle 3 and the motor are fixedly connected by bolts, the output end of the motor, the housing 4, and the first electric telescopic rod 501 are all welded, the fixing block 6 and the mounting sleeve 7 are integrally injection molded, and the fan blade 5 and the connecting piece 8 are welded.

[0029] By placing the heat sink 1 in the server, and then driving the motor to rotate the casing 4, which in turn drives the fan blades 5 to rotate. The rotation of the fan blades 5 generates air cooling for heat dissipation. To meet different heat dissipation needs, the airflow direction of the fan blades 5 can be adjusted by moving the fan blades 5 and changing their angle, so as to meet different heat dissipation scenarios.

[0030] In this embodiment, multiple sets of spoilers are fixedly connected to the outside of the fan blade 5. A collar 9 is fixedly connected to the output end of the first electric telescopic rod 501. A fixing plate 10 is fixedly connected to the outside of the collar 9. A fixing plate 11 is fixedly connected to one end of the fixing plate 10. The spoilers and the fan blade 5 are integrally molded by injection molding. The collar 9 is welded to the first electric telescopic rod 501. The fixing plate 10 is welded to the collar 9 and the fixing plate 11.

[0031] The spoiler can change the airflow boundary layer on the surface of the fan blade 5, causing the airflow to generate stronger turbulence on the surface of the fan blade 5. This turbulence can destroy the stable airflow layer originally attached to the surface of the fan blade 5, increase the mixing degree of the airflow, and allow heat to be transferred from the heat dissipation fins or heat-generating components to the airflow more quickly, thereby improving the heat dissipation efficiency. By driving the first electric telescopic rod 501, the collar 9 rises synchronously.

[0032] Secondly, in this embodiment, a sliding groove is provided on the output end of the first electric telescopic rod 501, and a slider is fixedly connected to the inner side wall of the fixing block 6 at a position corresponding to the sliding groove. The sliding groove and the slider are used in a matching manner. The slider and the interior of the fixing block 6 are integrally molded by injection molding. When the output end of the first electric telescopic rod 501 extends, the sliding groove will slide outside the slider, and the motor drives the first electric telescopic rod 501 to rotate. The sliding groove will squeeze the slider, so that the fixing block 6 rotates synchronously.

[0033] In addition, in this embodiment, a column 12 is fixedly connected to the top of the fixed plate 11, a connecting frame 13 is rotatably connected to the outside of the column 12, a lead screw 14 is threadedly connected to the end of the connecting frame 13 away from the column 12, a limit rod 15 is rotatably connected to the top of the lead screw 14, a connecting plate is fixedly connected to the top of the limit rod 15, a driven plate 16 is rotatably connected to the outside of the connecting plate, the end of the driven plate 16 away from the connecting plate extends to the outside of the connecting piece 8 and is fixedly connected to the connecting piece 8, the fixed plate 11 is welded to the column 12, the limit rod 15 is welded to the connecting plate, and the connecting piece 8 is welded to one end of the driven plate 16;

[0034] When the collar 9 rises, the column 12 drives the connecting frame 13 to rise, and then the limiting rod 15 rises synchronously. At this time, the driven plate 16 is pushed and tilted after being squeezed, thereby squeezing the connecting piece 8. The connecting piece 8 will rotate inside the mounting sleeve 7, so that the angle of the fan blade 5 is tilted, and the lead screw 14 will rotate. The lead screw 14 will spiral up inside the connecting frame 13 and lift the limiting rod 15, further increasing the swing amplitude of the fan blade 5. At the same time, the connecting frame 13 is designed to be rotatable outside the column 12. In order to facilitate the rotation of the fixing block 6 and generate a slight offset force with the connecting frame 13, the rotation of the connecting frame 13 can adapt to the offset force.

[0035] Furthermore, in this embodiment, a rectangular frame 17 is fixedly connected to one corner of the inner side of the frame 2. A sliding plate 18 is slidably connected inside the rectangular frame 17. A second electric telescopic rod 19 is fixedly connected to one end of the inner side of the rectangular frame 17. The second electric telescopic rod 19 is fixedly connected to one end of the sliding plate 18. A wind guide hood 20 is fixedly connected to the end of the sliding plate 18 away from the second electric telescopic rod 19. The rectangular frame 17 and the frame 2 are welded together. Sliding rods are designed between the remaining three corners of the frame 2 and the wind guide hood 20. The two ends of the sliding plate 18 are welded to the second electric telescopic rod 19 and the wind guide hood 20, respectively. Through the design of the wind guide hood 20, the fan blades 5 can be protected on the one hand, and the airflow generated by the fan blades 5 can be concentrated on the other hand. When facing different heat dissipation conditions, by driving the second electric telescopic rod 19, the sliding plate 18 slides inside the rectangular frame 17. At this time, the wind guide hood 20 will move closer to the frame 2, thereby changing the distance between the two, enhancing the concentration of airflow and wind pressure, and improving heat dissipation efficiency.

[0036] Furthermore, in this embodiment, a waist groove 21 is provided on the outer wall of the rectangular frame 17, and a placement groove 22 is provided at the bottom of the waist groove 21. The two ends of the waist groove 21 are symmetrically inclined. A swing rod 23 is rotatably connected to the outside of the sliding plate 18. A stop rod 24 is fixedly connected inside the swing rod 23. The stop rod 24 is slidably connected inside the waist groove 21. An elastic clip 25 is fixedly connected to the top of the sliding plate 18. A first clip and a second clip are respectively provided at the top of the swing rod 23 and the position corresponding to the elastic clip 25. The swing rod 23 and the stop rod 24 are welded together, and the sliding plate 18 and the elastic clip 25 are welded together.

[0037] When the sliding plate 18 slides, the stop rod 24 slides inside the waist groove 21. By designing multiple sets of placement slots 22, the sliding plate 18 can be adjusted in multiple stages to adapt to different heat dissipation requirements. When the sliding plate 18 moves to the right side of the waist groove 21, its tilted design will squeeze the stop rod 24, causing the swing rod 23 to rise. Then, the elastic energy stored in the elastic clip 25 will be inserted into the second clip to fix the angle of the swing rod 23, so that the stop rod 24 is disengaged from the placement slot 22. The distance between the fan blade 5 and the air guide shroud 20 will affect the airflow. When the distance is increased, the air volume will increase during the diffusion process, but the air pressure will decrease accordingly. When the distance is decreased, the airflow will be more concentrated, the air pressure will increase, and the air volume will decrease relatively. By adjusting the distance, the combination of air volume and air pressure can be flexibly adjusted according to actual needs to achieve the best heat dissipation effect.

[0038] When using the device of this technical solution, the heat sink 1 is placed in the server, and then the motor drives the casing 4 to rotate, which in turn drives the fan blades 5 to rotate. The rotation of the fan blades 5 generates air cooling for heat dissipation. The baffle can change the airflow boundary layer on the surface of the fan blades 5, causing the airflow to generate stronger turbulence on the surface of the fan blades 5. This turbulence can disrupt the stable airflow layer originally attached to the surface of the fan blades 5, increase the degree of airflow mixing, and allow heat to be transferred more quickly from the heat sink fins or heat-generating components to the airflow, thereby improving heat dissipation efficiency. This is achieved by driving the first electric telescopic rod 501. Subsequently, the collar 9 rises synchronously, at which point the column 12 drives the connecting frame 13 to rise, and then the limiting rod 15 rises synchronously. At this time, the driven plate 16 is pushed, and the driven plate 16 tilts after being squeezed, thereby squeezing the connecting piece 8. The connecting piece 8 will rotate inside the mounting sleeve 7, realizing the tilting angle of the fan blade 5 to meet different heat dissipation scenarios. Meanwhile, the lead screw 14 is rotated, and the lead screw 14 will spiral upward inside the connecting frame 13, raising the limiting rod 15, further increasing the swing amplitude of the fan blade 5. At the same time, the connecting frame 13 can rotate outside the column 12. The design is such that when the fixed block 6 rotates, it generates a slight offset force with the connecting frame 13. The rotation of the connecting frame 13 can adapt to the offset force. By driving the second electric telescopic rod 19, when the sliding plate 18 slides inside the rectangular frame 17, the stop rod 24 slides inside the waist groove 21. By designing multiple sets of placement grooves 22, multi-level adjustment of the sliding plate 18 can be achieved to adapt to different heat dissipation requirements. When the sliding plate 18 moves to the right side of the waist groove 21, its tilted design will squeeze the stop rod 24, causing the swing rod 23 to rise, and then the elastic clip 25... The elastic energy storage will be inserted into the second slot to fix the angle of the swing rod 23, so that the stop rod 24 can be disengaged from the placement slot 22. The distance between the fan blade 5 and the air guide shroud 20 will affect the airflow state. When the distance is increased, the air volume will increase during the diffusion process, but the air pressure will decrease accordingly. When the distance is decreased, the air volume will be more concentrated, the air pressure will increase, and the air volume will decrease relatively. By adjusting the distance, the combination of air volume and air pressure can be flexibly adjusted according to actual needs to achieve the best heat dissipation effect. Compared with the existing fans, this utility model can improve the overall practicality of the fan through design.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A forward and reverse reversible fan with a telescopic air guide shroud, the fan comprising a shroud (1), characterized in that, The radiator (1) is fixedly connected to a frame (2) on the outside. A baffle (3) is fixedly connected to the back of the frame (2). A motor is fixedly connected inside the baffle (3). A housing (4) is fixedly connected to the output end of the motor. A fan blade (5) is rotatably connected to the outside of the housing (4). The output end of the motor extends into the inside of the housing (4). A first electric telescopic rod (501) is fixedly connected to the output end of the motor. A fixing block (6) is slidably connected to the output end of the first electric telescopic rod (501). An installation sleeve (7) is fixedly connected to the outside of the fixing block (6). A connecting piece (8) is rotatably connected inside the installation sleeve (7). The fan blade (5) is fixedly connected to the inside of the connecting piece (8).

2. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 1, characterized in that, The fan blade (5) is fixedly connected to multiple sets of spoilers. A collar (9) is fixedly connected to the output end of the first electric telescopic rod (501). A fixing plate (10) is fixedly connected to the outside of the collar (9). A fixing disk (11) is fixedly connected to one end of the fixing plate (10).

3. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 1, characterized in that, The first electric telescopic rod (501) has a groove on its output end, and a slider is fixedly connected to the inner side wall of the fixed block (6) at a position corresponding to the groove. The groove and the slider are adapted to each other for use.

4. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 2, characterized in that, The top of the fixed plate (11) is fixedly connected to a column (12), and a connecting frame (13) is rotatably connected to the outside of the column (12). A lead screw (14) is threadedly connected to one end of the connecting frame (13) away from the column (12), and a limit rod (15) is rotatably connected to the top of the lead screw (14).

5. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 4, characterized in that, The top of the limiting rod (15) is fixedly connected to a connecting plate, and the outside of the connecting plate is rotatably connected to a driven plate (16). The end of the driven plate (16) away from the connecting plate extends to the outside of the connecting piece (8) and is fixedly connected to the connecting piece (8).

6. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 1, characterized in that, A rectangular frame (17) is fixedly connected to one corner of the inner side of the frame (2). A sliding plate (18) is slidably connected inside the rectangular frame (17). A second electric telescopic rod (19) is fixedly connected to one end of the inner side of the rectangular frame (17). The second electric telescopic rod (19) is fixedly connected to one end of the sliding plate (18). A wind guide cover (20) is fixedly connected to the end of the sliding plate (18) away from the second electric telescopic rod (19).

7. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 6, characterized in that, The outer wall of the rectangular frame (17) is provided with a waist groove (21), and the bottom of the waist groove (21) is provided with a placement groove (22). The two ends of the waist groove (21) are symmetrically inclined. The outside of the sliding plate (18) is rotatably connected to a swing rod (23), and the inside of the swing rod (23) is fixedly connected to a stop rod (24). The stop rod (24) is slidably connected to the inside of the waist groove (21).

8. A forward and reverse fan coordinated telescopic air guide shroud heat sink according to claim 7, characterized in that, The top of the sliding plate (18) is fixedly connected to an elastic clip (25), and the top of the swing rod (23) is provided with a first slot and a second slot respectively at the position corresponding to the elastic clip (25).

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