Noise reduction type air conditioner fan mechanism

Abstract

The utility model discloses a noise reduction type air conditioner fan mechanism which comprises an air conditioner fan shell, an exhaust port is formed in the air conditioner fan shell, a motor is arranged at one end of the exhaust port through a mounting frame, a plurality of exhaust blades are arranged at one end of a transmission shaft of the motor through a mounting seat, and a stable support is arranged outside the exhaust blades. The exhaust port and the stable support are both internally provided with limiting grooves, a plurality of balls are arranged in the limiting grooves, an oil storage tank is arranged on the outer side of the air conditioner fan shell, and an oil injection pipe communicated with the side wall of the exhaust port is arranged on one side of the bottom of the oil storage tank. The exhaust port and the stable support are rotationally connected through the limiting groove and the multiple balls, sliding friction force between the stable support and the exhaust port is changed into rolling friction force through the multiple balls, friction force generated when the exhaust blade and the stable support rotate is reduced, and the smoothness and stability of rotation adjustment of the exhaust blade are conveniently improved; and an excellent noise reduction effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner fan technology, specifically a noise-reducing air conditioner fan mechanism. Background Technology

[0002] A rack-mounted air conditioner is a device that regulates the temperature, relative humidity, and airflow speed of the air inside an electrical control cabinet. The difference between a rack-mounted air conditioner and a regular air conditioner lies in their structure, the objects they serve, and the environments in which they operate. Rack-mounted air conditioners are specifically designed for applications in the communications field, such as solving heat dissipation problems in outdoor communication cabinets, wireless outdoor base stations, and battery cabinets. They primarily remove the heat generated by electrical components consuming electrical energy, providing an ideal temperature and humidity environment inside various cabinets. Simultaneously, they isolate dust and corrosive gases from the external environment, extending the lifespan of electrical components and improving the reliability of the machine system.

[0003] A noise-reducing cabinet air conditioner with application number 202323578149.1 in the prior art includes a main body mechanism, an external mechanism, an internal mechanism, and a cabinet mechanism. By setting up the main body mechanism, specifically, when the cabinet air conditioner is working, the exhaust motor drives the exhaust fan to rotate. The exhaust motor is set inside the exhaust fan, which reduces the amplitude of the exhaust fan vibration. At the same time, the fan blades of the exhaust fan are fixed in a sliding ring, and the sliding ring rotates in a fixed ring, which reduces the amplitude of the fan blade vibration. The multiple fan blades also help to maintain silence, thus greatly reducing the noise emitted by the noise-reducing cabinet air conditioner. However, the friction between the exhaust blades and the external support is large when they rotate, which easily generates noise during sliding friction, making it difficult to reduce noise. Utility Model Content

[0004] The purpose of this invention is to provide a noise-reducing air conditioner fan mechanism to solve the problem that the existing technology has a large frictional force when the exhaust blades and external bracket rotate, which easily generates noise during sliding friction and is not easy to reduce noise.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a noise-reducing air conditioner fan mechanism, including an air conditioner fan housing, an exhaust port inside the air conditioner fan housing, and a motor mounted inside one end of the exhaust port via a mounting bracket, with multiple exhaust blades mounted on one end of the motor's drive shaft via a mounting base, and a stable support mounted outside the multiple exhaust blades, with limiting grooves on the inner walls of both the exhaust port and the stable support, and multiple ball bearings inside the limiting grooves, and an oil tank on the outer side of the air conditioner fan housing, with an oil filling pipe connected to the side wall of the exhaust port on one side of the bottom of the oil tank.

[0006] Furthermore, the limiting groove is a semi-circular arc groove, and two sets of limiting grooves are provided in parallel, with an oil injection groove provided laterally between the two limiting grooves.

[0007] Furthermore, the ball is a steel ball, and the outer diameter of the ball is smaller than the inner diameter of the limiting groove.

[0008] Furthermore, the stabilizing support is an annular support, and the outer wall of the stabilizing support is rotatably arranged with respect to the inner wall of the exhaust port.

[0009] Furthermore, the oil supply pipe at the bottom of the oil tank is equipped with an oil quantity regulating valve, and the oil tank is equipped with an oil inlet on the upper side.

[0010] Furthermore, one end of the oil injection pipe is provided with an oil-immersed layer, and the oil-immersed layer is located in the storage tank on the inner wall of the exhaust port.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model has a stable support on the outside of multiple exhaust blades. The exhaust port and the stable support are rotatably connected by a limiting groove and multiple balls. The sliding friction between the stable support and the exhaust port is changed to rolling friction by multiple balls, which reduces the friction when the exhaust blades and the stable support rotate. This facilitates the improvement of the smoothness and stability of the exhaust blade rotation adjustment and has an excellent noise reduction effect.

[0013] 2. In addition, the present invention provides an oil storage tank on the side of the air conditioner fan housing. An oil injection pipe communicating with the side wall of the exhaust port is provided on one side of the bottom of the oil storage tank. An oil quantity regulating valve is provided on the oil injection pipe at the bottom of the oil storage tank, so that the liquid lubricating oil in the oil storage tank can be injected into the inner wall of the exhaust port through the oil injection pipe by adjusting the oil quantity regulating valve. This facilitates the lubrication of multiple balls in the limiting groove. At the same time, the lubricant is attached to the outside of the balls to prevent the collision noise generated when the steel balls and the cage collide, further improving the noise reduction effect.

[0014] 3. This utility model has an oil-immersed layer at one end of the oil injection pipe, and the oil-immersed layer is set in the storage groove on the inner wall of the exhaust port. When the oil injection groove outside the rotating and stable support passes through the oil-immersed layer, the lubricating oil in the oil-immersed layer is hung into the oil injection groove. The lubricating oil in the oil injection groove flows into the limiting grooves on both sides, so as to achieve the purpose of uniformly adding lubricating oil and the lubrication effect is better. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure at point AA of this utility model;

[0018] Figure 3 This is a cross-sectional view of the structure at point BB of this utility model.

[0019] In the diagram: 1. Air conditioner fan housing; 2. Exhaust port; 3. Stable support; 4. Exhaust blades; 5. Mounting base; 6. Drive shaft; 7. Motor; 8. Mounting bracket; 9. Oil immersion layer; 10. Storage tank; 11. Limiting groove; 12. Ball bearing; 13. Oil reservoir; 14. Oil inlet; 15. Oil inlet pipe; 16. Oil quantity regulating valve; 17. Oil filling tank. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the present invention, a noise-reducing air conditioner fan mechanism includes an air conditioner fan housing 1. An exhaust port 2 is provided inside the air conditioner fan housing 1, and a motor 7 is mounted inside one end of the exhaust port 2 via a mounting bracket 8. Multiple exhaust blades 4 are mounted on one end of the drive shaft 6 of the motor 7 via a mounting base 5, and a stable support 3 is provided outside the multiple exhaust blades 4. The stable support 3 reduces the vibration amplitude of the exhaust blades 4, facilitating noise reduction. Limiting grooves 11 are provided on the inner walls of both the exhaust port 2 and the stable support 3. 1. The interior is provided with multiple balls 12, which are steel balls. The outer diameter of the balls 12 is smaller than the inner diameter of the limiting groove 11. The outer side of the multiple balls 12 is provided with a retainer. The stable support 3 is an annular support. The outer wall of the stable support 3 is rotatably set with the inner wall of the exhaust port 2. The sliding friction between the stable support 3 and the exhaust port 2 is changed to rolling friction by using multiple balls 12. This reduces the friction between the exhaust blade 4 and the stable support 3 when they rotate, which facilitates the smoothness and stability of the rotation adjustment of the exhaust blade 4 and has an excellent noise reduction effect.

[0022] like Figure 2 and Figure 3As shown, in order to lubricate the multiple balls 12 in the limiting groove 11, an oil reservoir 13 is provided on the outside of the air conditioner fan housing 1. An oil injection pipe 15 is provided on one side of the bottom of the oil reservoir 13, which is connected to the side wall of the exhaust port 2. An oil quantity regulating valve 16 is provided on the oil injection pipe 15 at the bottom of the oil reservoir 13, and an oil injection port 14 is provided on the upper side of the oil reservoir 13. By adjusting the oil quantity regulating valve 16, the liquid lubricating oil in the oil reservoir 13 is injected into the inner wall of the exhaust port 2 through the oil injection pipe 15, which facilitates the lubrication of the multiple balls 12 in the limiting groove 11. At the same time, the lubricant is attached to the outside of the balls 12 to prevent the balls 12 from colliding with the cage and generating collision noise, further improving the noise reduction effect.

[0023] like Figure 2 and Figure 3 As shown, in order to achieve the purpose of uniformly adding lubricating oil, the limiting groove 11 is a semi-circular arc groove, and two sets of limiting grooves 11 are arranged in parallel. An oil injection groove 17 is arranged transversely between the two limiting grooves 11. One end of the oil injection pipe 15 is provided with an oil immersion layer 9, and the oil immersion layer 9 is set in the storage groove 10 on the inner wall of the exhaust port 2. When the oil injection groove 17 outside the rotating stable support 3 passes through the oil immersion layer 9, the lubricating oil in the oil immersion layer 9 is hung into the oil injection groove 17, and the lubricating oil in the oil injection groove 17 flows into the limiting grooves 11 on both sides, so as to achieve the purpose of uniformly adding lubricating oil and the lubrication effect is better.

[0024] The working principle and usage process of this utility model are as follows: In use, the exhaust port 2 and the stable support 3 are provided on the outside of the multiple exhaust blades 4. The exhaust port 2 and the stable support 3 are rotatably connected by the limiting groove 11 and multiple balls 12. The sliding friction between the stable support 3 and the exhaust port 2 is changed to rolling friction by the multiple balls 12, which reduces the friction when the exhaust blades 4 and the stable support 3 rotate. This facilitates the improvement of the smoothness and stability of the rotation adjustment of the exhaust blades 4 and has an excellent noise reduction effect.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A noise reduction type air conditioner fan mechanism comprising an air conditioner fan casing (1), characterized by: The air conditioner fan shell (1) is internally provided with an exhaust port (2), and the exhaust port (2) is internally provided with a motor (7) at one end through a mounting frame (8); the transmission shaft (6) of the motor (7) is provided with a plurality of exhaust blades (4) at one end through a mounting seat (5), and the plurality of exhaust blades (4) are externally provided with a stable support (3); the exhaust port (2) and the stable support (3) are both internally provided with a limiting groove (11), and the limiting groove (11) is internally provided with a plurality of ball bearings (12); the air conditioner fan shell (1) is externally provided with an oil storage tank (13), and the oil storage tank (13) is provided with an oil injection pipe (15) in communication with the side wall of the exhaust port (2) at one side of the bottom.

2. The fan mechanism of claim 1, wherein: The limiting groove (11) is a semicircular groove, and two groups of limiting grooves (11) are arranged in parallel.

3. The fan mechanism of claim 1, wherein: The ball bearing (12) is a steel ball, and the outer diameter of the ball bearing (12) is smaller than the inner diameter of the limiting groove (11).

4. The fan mechanism of claim 1, wherein: The stable support (3) is an annular support, and the outer wall of the stable support (3) is rotationally arranged with the inner wall of the exhaust port (2).

5. The fan mechanism of claim 1, wherein: The oil storage tank (13) is provided with an oil amount adjusting valve (16) on the oil injection pipe (15) at the lower part, and is provided with an oil injection port (14) at the upper side.

6. The fan mechanism of claim 5, wherein: The oil injection pipe (15) is provided with an oil immersion layer (9) at one end, and the oil immersion layer (9) is arranged in the storage groove (10) of the inner wall of the exhaust port (2).

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