Efficient energy-saving centrifugal cooling fan

Abstract

The utility model discloses a high-efficiency and energy-saving centrifugal cooling fan which comprises a fan blade mounting plate, a fan blade and a fan blade, the group of centrifugal fan blades are uniformly and fixedly connected with the fan blade mounting plate, and the centrifugal fan blades are arc-shaped and are obliquely arranged; an outer cover; the inner cover is fixedly connected with the outer cover; the splined hole shaft and the bearing are connected with the inner cover; the spline is arranged in the spline hole shaft; the mounting shaft is fixedly connected with the spline; and the rotor is fixedly connected with the mounting shaft, and the rotor is fixedly connected with the fan blade mounting plate. The utility model relates to the technical field of heat dissipation, in particular to an efficient energy-saving centrifugal heat dissipation fan. The technical problem to be solved by the utility model is to provide a high-efficiency energy-saving centrifugal cooling fan, which is favorable for realizing the rotation of centrifugal fan blades and the reciprocating motion along the axial direction at the same time, and realizing the circulating change of air pressure so as to conveniently realize heat dissipation.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a high-efficiency energy-saving centrifugal heat dissipation fan. Background Art

[0002] A high-efficiency, energy-saving centrifugal cooling fan is a heat dissipation device that uses centrifugal force to draw fluid (usually air) from the fan's axial direction and then expel it in a circular direction. Its operating principle is based on the principles of fluid mechanics and aerodynamics. The high-speed rotation of the fan blades generates centrifugal force, which draws in air and accelerates its expulsion to achieve the desired cooling effect.

[0003] Existing technology, such as the invention patent for a high-efficiency and energy-saving turbine centrifugal fan blade, application number CN202210587726.4, uses centrifugal diversion to significantly reduce airflow turbulence, provide greater wind pressure, and greatly improve heat dissipation efficiency.

[0004] Currently, there is still a lack of a centrifugal fan blade that can rotate and move back and forth along the axial direction at the same time to achieve cyclic changes in wind pressure to facilitate heat dissipation. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a high-efficiency and energy-saving centrifugal cooling fan, which is conducive to realizing the rotation of centrifugal fan blades and the simultaneous reciprocating movement along the axial direction, realizing the cyclic change of wind pressure, and facilitating heat dissipation.

[0006] The utility model adopts the following technical solutions to achieve the purpose of the utility model:

[0007] A high-efficiency, energy-saving centrifugal cooling fan is characterized by comprising: a blade mounting plate; a group of centrifugal blades uniformly fixedly connected to the blade mounting plate, the centrifugal blades being arc-shaped and inclined; an outer cover; an inner cover fixedly connected to the outer cover; a splined hole shaft with a bearing connected to the inner cover; a spline disposed within the splined hole shaft; a mounting shaft fixedly connected to the spline; and a rotor fixedly connected to the mounting shaft, wherein the rotor is fixedly connected to the blade mounting plate. By using centrifugal blades, heat dissipation is achieved and the fan is easy to use.

[0008] As a further limitation of this technical solution, a motor is fixedly connected to the inner housing, the output shaft of the motor is fixedly connected to a power bevel gear, the splined hole shaft is fixedly connected to a driven bevel gear, the power bevel gear meshes with the driven bevel gear, and the spline passes through the driven bevel gear. The motor drives the bevel gears, and the meshing of the bevel gears provides power for the rotation of the centrifugal fan blades.

[0009] As a further limitation of this technical solution, a circular block is fixedly connected to the eccentric portion of the power bevel gear, the circular block is disposed within a chute, the chute is fixedly connected to a mounting tube, and the spline bearing is connected to the mounting tube. Placing the circular block within the chute facilitates simultaneous rotation of the centrifugal fan blades and axial reciprocating movement, thereby achieving cyclical changes in wind pressure and facilitating heat dissipation.

[0010] As a further limitation of the present technical solution, the chute is fixedly connected to symmetrical guide rods, and the symmetrical guide rods respectively pass through the inner cover. By adopting the guide rods, the centrifugal fan blades can be easily moved back and forth along the axial direction.

[0011] As a further limitation of the present technical solution, a group of the centrifugal blades are respectively fixedly connected to the conical cover.

[0012] As a further limitation of the present technical solution, a guide ring is provided at the front end of the conical cover, and the guide ring matches the conical cover to facilitate air diversion.

[0013] As a further limitation of the present technical solution, the rotor is provided with a guide hole, and the outer cover matches the guide hole.

[0014] Compared with related technologies, the high-efficiency and energy-saving centrifugal cooling fan provided by the present invention has the following beneficial effects:

[0015] (1) This device adopts bevel gear meshing to set the round block in the slide slot, which facilitates the rotation of the centrifugal fan blades and the simultaneous reciprocating movement along the axial direction, thereby achieving a cyclic change in wind pressure and facilitating heat dissipation;

[0016] (2) This device adopts an inner cover and an outer cover, and places the motor and bevel gear etc. in the area formed by the inner cover and the outer cover, thereby achieving a dust-proof effect;

[0017] (3) This device adopts a guide hole and sets the outer cover in the guide hole, so that the axial movement of the centrifugal fan blades is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 The local explosion of the utility model Figure 1 ;

[0020] Figure 3 The local explosion of the utility model Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the partial three-dimensional structure of the utility model Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the utility model Figure 2 .

[0023] In the figure: 1. guide ring, 2. centrifugal fan blade, 3. rotor, 4. fan blade mounting plate, 5. outer cover, 6. inner cover, 7. conical cover, 8. guide hole, 9. mounting shaft, 10. spline, 11. guide rod, 12. spline hole shaft, 13. driven bevel gear, 14. slide groove, 15. mounting tube, 16. power bevel gear, 17. motor, 18. round block. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: A high-efficiency, energy-saving centrifugal cooling fan comprises: a blade mounting plate 4; a group of centrifugal blades 2 uniformly fixedly connected to the blade mounting plate 1, the centrifugal blades 2 being arc-shaped and tilted; an outer cover 5; an inner cover 6 fixedly connected to the outer cover 5; a splined hole shaft 12 with a bearing connected to the inner cover 6; a spline 10 disposed within the splined hole shaft 12; a mounting shaft 9 fixedly connected to the spline 10; and a rotor 3 fixedly connected to the mounting shaft 9, wherein the rotor 3 is fixedly connected to the blade mounting plate 4. By using the centrifugal blades 2, heat dissipation is achieved and the fan is easy to use.

[0026] The inner cover 6 is fixedly connected to a motor 17, the output shaft of the motor 17 is fixedly connected to a power bevel gear 16, the spline hole shaft 12 is fixedly connected to a driven bevel gear 13, the power bevel gear 16 meshes with the driven bevel gear 13, and the spline 10 passes through the driven bevel gear 13. The motor 17 is driven and the bevel gears are meshed to provide power for the rotation of the centrifugal fan blades 2.

[0027] The model of the motor 17 is a R300C miniature DC motor.

[0028] The eccentric portion of the power bevel gear 16 is fixedly connected to a round block 18, which is disposed in a chute 14. The chute 14 is fixedly connected to a mounting tube 15, and the spline 10 is bearing-connected to the mounting tube 15. The round block 18 is disposed in the chute 14 to facilitate the simultaneous rotation of the centrifugal fan blades 2 and their axial reciprocating movement, thereby achieving a cyclic change in wind pressure and facilitating heat dissipation.

[0029] The chute 14 is fixedly connected to the symmetrical guide rods 11, and the symmetrical guide rods 11 respectively pass through the inner cover 6. By adopting the guide rods 11, it is convenient to realize the reciprocating movement of the centrifugal fan blades 2 along the axial direction.

[0030] A group of centrifugal blades 2 are respectively fixedly connected to the conical cover 7.

[0031] The front end of the conical cover 7 is provided with a guide ring 1, and the guide ring 1 matches the conical cover 7 to facilitate air diversion.

[0032] The working principle of the high-efficiency and energy-saving centrifugal cooling fan provided by the utility model is as follows:

[0033] The outer cover 5 and the guide ring 1 are installed in the predetermined position. When heat dissipation is required, the motor 17 is controlled to rotate, and the motor 17 drives the power bevel gear 16 to rotate. The power bevel gear 16 drives the driven bevel gear 13, the spline hole shaft 12, the spline 10, the mounting shaft 9, the rotor 2, the fan blade mounting plate 4, the centrifugal fan blade 2 and the conical cover 7 to rotate. The power bevel gear 16 drives the round block 18 to swing in the chute 14. The round block 18 drives the chute 14 to move back and forth. The chute 14 drives the guide rod 11 to move back and forth. The chute 14 drives the mounting tube 15 to move back and forth. The mounting tube 15 drives the spline 10 to move back and forth along the spline hole shaft 12. The spline 10 drives the mounting shaft 9, the rotor 2, the fan blade mounting plate 4, the centrifugal fan blade 2 and the conical cover 7 to move back and forth to achieve heat dissipation.

[0034] Embodiment 2: This embodiment further elaborates on the embodiment 1, wherein the rotor 3 is provided with a guide hole 8, and the outer cover 5 matches the guide hole 8. By arranging the outer cover 5 in the guide hole 8, the centrifugal blade 2 moves more smoothly.

[0035] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving centrifugal cooling fan, characterized in that: include: Fan blade mounting plate (4); A group of centrifugal blades (2) are evenly fixedly connected to the blade mounting plate (4), wherein the centrifugal blades (2) are arc-shaped and tilted; outer cover (5); An inner cover (6) fixedly connected to the outer cover (5); A spline hole shaft (12) bearing connected to the inner cover (6); A spline (10) is provided in the spline hole shaft (12); Installing the shaft (9) to securely connect the spline (10); The rotor (3) is fixedly connected to the mounting shaft (9), and the rotor (3) is fixedly connected to the fan blade mounting plate (4).

2. The high-efficiency energy-saving centrifugal cooling fan according to claim 1 is characterized in that: The inner cover (6) is fixedly connected to a motor (17), the output shaft of the motor (17) is fixedly connected to a power bevel gear (16), the spline hole shaft (12) is fixedly connected to a driven bevel gear (13), the power bevel gear (16) is meshed with the driven bevel gear (13), and the spline (10) passes through the driven bevel gear (13).

3. The high-efficiency and energy-saving centrifugal cooling fan according to claim 2 is characterized in that: The eccentric portion of the power bevel gear (16) is fixedly connected to a round block (18), the round block (18) is arranged in a slide groove (14), the slide groove (14) is fixedly connected to a mounting tube (15), and the spline (10) is bearing-connected to the mounting tube (15).

4. The high-efficiency and energy-saving centrifugal cooling fan according to claim 3 is characterized in that: The slide groove (14) is fixedly connected to symmetrical guide rods (11), and the symmetrical guide rods (11) respectively pass through the inner cover (6).

5. The high-efficiency and energy-saving centrifugal cooling fan according to claim 1 is characterized in that: A group of centrifugal blades (2) are respectively fixedly connected to the conical covers (7).

6. The high-efficiency energy-saving centrifugal cooling fan according to claim 5, characterized in that: A guide ring (1) is provided at the front end of the conical cover (7), and the guide ring (1) matches the conical cover (7).

7. The high-efficiency and energy-saving centrifugal cooling fan according to claim 1 is characterized in that: The rotor (3) is provided with a guide hole (8), and the outer cover (5) matches the guide hole (8).

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