Cooling fan with uniform air speed

Abstract

The utility model belongs to the technical field of cooling fans, and discloses a cooling fan with uniform air speed, which comprises a fan shell, a motor fixedly mounted on the outer wall of the rear side of the fan shell, fan blades fixedly mounted at the end of an output shaft of the motor, and a honeycomb air outlet fixedly mounted in a second mounting groove. According to the cooling fan with the uniform wind speed, when the cooling fan is used, the fan blades are driven by the motor to work to generate wind power, the wind power firstly passes through the porous pressure stabilizing plate, and after air passes through the pore plate provided with a plurality of small circular pores, the mixing process of jet flow is very short, and the temperature difference and the wind speed are quickly attenuated, so that the blown wind power is relatively uniform; when wind power blows through the honeycomb air outlet, the honeycomb air outlet is parallel to the axis of the wind tunnel, large-scale vortexes in airflow are divided into small vortexes, attenuation of the vortexes can be accelerated, and the wind power air outlet is transformed, so that air outlet of the cooling fan is more uniform, and noise is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling fans, and specifically relates to a cooling fan with uniform wind speed. Background Art

[0002] Cooling fans are mainly used for cooling and capacity increase of dry-type transformers, cooling and temperature reduction of electronic equipment, distribution cabinets, high- and low-voltage switch cabinets and other products. The cooling fan motor is a cooling system, a device that removes heat and discharges it into the atmosphere. Unlike small office spaces where air conditioners can be used, cooling fans are applied to the cooling requirements of industrial production processes. Cooling fans come in different sizes depending on the process they cool. The general type of cooling fans are those found on the roofs of buildings. Some can be seen installed on tall buildings. These towers are often mistaken for plants themselves because they are the only visible structures in the area. Although these towers are prominent, other installations are much smaller. Like other equipment, they are vulnerable to damage, especially those built on the ground.

[0003] For example, the high-flow cooling fan with the publication number CN218467904U includes an adjustment component, and the adjustment rod is rotatably connected inside the impeller disc. When the device is in use, the adjustment component can adjust and position the use angle of the fan blades of the impeller component, so that when the rotation speed of the cooling fan is fixed, the function and purpose of controlling the blowing flow rate can be achieved by adjusting the use inclination angle of the fan blades, which can be realized without the aid of an additional control device, is convenient and flexible to use, and can adapt to the cooling and heat dissipation use in different environments, with extremely strong flexibility, adaptability and practicability;

[0004] This cooling fan is not provided with any wind speed uniformity mechanism, resulting in the uneven wind speed when the fan blows out air. On the one hand, it will increase the noise of the fan, and on the other hand, it will affect the cooling effect. In order to solve the above problems, a cooling fan with uniform wind speed is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cooling fan with uniform wind speed to solve the above problems, including:

[0006] A fan housing, on the rear outer wall of which a motor is fixedly installed, the output shaft end of the motor is fixedly installed with a fan blade, the fan blade is located inside the fan housing, and a first installation groove, a second installation groove and a third installation groove are arranged on the front side of the fan housing;

[0007] A porous pressure stabilizing plate, which is fixedly installed inside the first installation groove;

[0008] A honeycomb air outlet, which is fixedly installed inside the second installation groove.

[0009] Through the above technical solution, when the cooling fan is in use, the motor drives the fan blades to work to generate wind force. The wind force first passes through the porous pressure stabilizing plate. When the air passes through the orifice plate with several circular small holes, the mixing process of the jet is very short, and the temperature difference and wind speed decay quickly, so that the blown wind force is relatively uniform. After passing through the porous pressure stabilizing plate, it then enters the honeycomb air outlet. When the wind force blows through the honeycomb air outlet, since the honeycomb structure has good noise reduction function, the noise generated by the fan is reduced. At the same time, the honeycomb air outlet is used to straighten the air flow, making it parallel to the axis of the wind tunnel, and dividing the large-scale vortices in the air flow into small vortices, which is beneficial to accelerating the decay of the vortices. By transforming the wind force air outlet, the air outlet of the cooling fan is made more uniform and the noise is reduced.

[0010] In a preferred embodiment, a plurality of air permeable holes are uniformly formed in the outer wall of the porous pressure stabilizing plate.

[0011] In a preferred embodiment, a damping net is fixedly installed inside the third installation groove, and the damping net is formed by steel wire.

[0012] Through the above technical solution, by setting the damping net, on the one hand, it protects external impurities from entering the fan interior, and on the other hand, the damping net can reduce the turbulence degree and non-uniformity of the air flow.

[0013] In a preferred embodiment, the thickness of the honeycomb air outlet is 50 mm.

[0014] In a preferred embodiment, a fixing seat is integrally provided on the outer wall of the lower wall of the fan housing, and a threaded hole is formed inside the fixing seat.

[0015] Through the above technical solution, the fan is connected to other devices or the ground through the fixing seat.

[0016] In a preferred embodiment, the first installation groove, the second installation groove and the third installation groove are arranged in sequence from left to right.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effect of the present utility model is: the present utility model provides a cooling fan with uniform wind speed.

[0018] When using a cooling fan, the motor drives the fan blades to work and generate wind force. The wind force first passes through a porous pressure stabilizing plate. When the air passes through the orifice plate with several circular small holes, the mixing process of the jet flow is very short, the temperature difference and the wind speed decay quickly, so that the blown wind force is relatively uniform. After passing through the porous pressure stabilizing plate, it enters the honeycomb air outlet. When the wind force blows through the honeycomb air outlet, due to the good noise reduction function of the honeycomb structure, the noise generated by the fan is reduced. At the same time, the honeycomb air outlet is used to straighten the air flow, making it parallel to the axis of the wind tunnel, and dividing the large-scale vortices in the air flow into small vortices, so it is beneficial to accelerate the decay of the vortices. By transforming the wind force air outlet, the air outlet of the cooling fan is made more uniform and the noise is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is an exploded view of the present utility model.

[0021] Reference numerals in the figure: 1 - fan housing; 2 - motor; 3 - fan blade; 4 - first mounting groove; 5 - second mounting groove; 6 - third mounting groove; 7 - porous pressure stabilizing plate; 8 - honeycomb air outlet; 9 - damping net; 10 - fixing seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] The following will be combined with Figure 1-2 to give a detailed description of a cooling fan with uniform wind speed according to an embodiment of the present utility model.

[0024] Embodiment:

[0025] A cooling fan with uniform wind speed includes:

[0026] The fan housing 1 has a motor 2 fixedly installed on the outer wall of its rear side. The lower wall outer wall of the fan housing 1 is integrally provided with a fixing seat 10. A threaded hole is provided inside the fixing seat 10. The fan is connected to other equipment or the ground through the fixing seat 10. The end of the output shaft of the motor 2 is fixedly installed with a fan blade 3. When using the cooling fan, the motor 2 drives the fan blade 3 to work to generate wind power. The fan blade 3 is located inside the fan housing 1. The front side of the fan housing 1 is provided with a first installation groove 4, a second installation groove 5 and a third installation groove 6, which are arranged in sequence from left to right;

[0027] The porous pressure stabilizing plate 7 is fixedly installed inside the first installation groove 4. A plurality of ventilation holes are evenly provided on the outer wall of the porous pressure stabilizing plate 7. The wind power first passes through the porous pressure stabilizing plate 7. When the air passes through the orifice plate with several circular small holes, the mixing process of the jet flow is very short, and the temperature difference and the wind speed decay quickly, so that the blown wind power is relatively uniform;

[0028] The honeycomb air outlet 8 is fixedly installed inside the second installation groove 5. The thickness of the honeycomb air outlet 8 is 50 mm. After passing through the porous pressure stabilizing plate 7, it enters the honeycomb air outlet 8 again. When the wind power blows through the honeycomb air outlet 8, due to the good noise reduction function of the honeycomb structure, the noise generated by the fan is reduced. At the same time, the honeycomb air outlet 8 is used to straighten the air flow so that it is parallel to the wind tunnel axis, and the large-scale vortices in the air flow are divided into small vortices, so it is beneficial to accelerate the decay of the vortices. By transforming the wind power outlet, the air outlet of the cooling fan is made more uniform and the noise is reduced;

[0029] A damping net 9 is fixedly installed inside the third installation groove 6. The damping net 9 is made of steel wire. By setting the damping net 9, on the one hand, it protects external impurities from entering the fan interior, and on the other hand, the damping net 9 can reduce the turbulence degree and non-uniformity of the air flow.

[0030] Working principle:

[0031] When using the cooling fan, the motor 2 drives the fan blade 3 to work to generate wind power. The wind power first passes through the porous pressure stabilizing plate 7. When the air passes through the orifice plate with several circular small holes, the mixing process of the jet flow is very short, and the temperature difference and the wind speed decay quickly, so that the blown wind power is relatively uniform. After passing through the porous pressure stabilizing plate 7, it enters the honeycomb air outlet 8 again. When the wind power blows through the honeycomb air outlet 8, due to the good noise reduction function of the honeycomb structure, the noise generated by the fan is reduced. At the same time, the honeycomb air outlet 8 is used to straighten the air flow so that it is parallel to the wind tunnel axis, and the large-scale vortices in the air flow are divided into small vortices, so it is beneficial to accelerate the decay of the vortices. By transforming the wind power outlet, the air outlet of the cooling fan is made more uniform and the noise is reduced.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling fan with uniform wind speed, characterized in that: include: A fan housing (1), a motor (2) being fixedly mounted on the rear outer wall thereof, a fan blade (3) being fixedly mounted on the end of the output shaft of the motor (2), the fan blade (3) being located inside the fan housing (1), and a first mounting groove (4), a second mounting groove (5) and a third mounting groove (6) being arranged on the front side of the fan housing (1); A porous voltage stabilizing plate (7) fixedly mounted inside the first mounting groove (4); The honeycomb air outlet (8) is fixedly installed inside the second installation groove (5).

2. A cooling fan with uniform wind speed as claimed in claim 1, characterized in that: The outer wall of the porous pressure stabilizing plate (7) is evenly provided with a plurality of air holes.

3. A cooling fan with uniform wind speed as claimed in claim 1, characterized in that: A damping net (9) is fixedly installed inside the third installation groove (6), and the damping net (9) is made of steel wire.

4. A cooling fan with uniform wind speed as claimed in claim 1, characterized in that: The thickness of the honeycomb air outlet (8) is 50 mm.

5. The cooling fan with uniform wind speed as claimed in claim 1, characterized in that: A fixing seat (10) is integrally provided on the outer wall of the lower wall of the fan housing (1), and a threaded hole is provided inside the fixing seat (10).

6. A cooling fan with uniform wind speed as claimed in claim 1, characterized in that: The first mounting groove (4), the second mounting groove (5) and the third mounting groove (6) are arranged in sequence from left to right.

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