Eight-groove eight-pole single-phase motor for exhaust fan

Abstract

The utility model provides an eight-groove eight-pole single-phase motor for an exhaust fan, which relates to the technical field of motors and comprises a support, a protective cover is arranged at the top end of the support, a bolt A is arranged at the bottom end of the protective cover, an iron casing is mounted at the top end of the protective cover, a main shaft is arranged in the iron casing, and a waveform gasket is arranged at the bottom end of the main shaft. A C-shaped clamping ring is arranged at the bottom end of the wave-shaped gasket, a bearing is arranged on the surface of the main shaft, and a graphite gasket is arranged at the top end of the bearing, so that optimization of the motor structure and enhancement of the function are achieved, lubricating and cooling are facilitated through rotary connection of the sponge cushion and the main shaft and design of a guide groove in the liquid storage tank, and the service life of the motor is prolonged; the threaded connection between the outer plate and the liquid storage tank and the rotary connection between the clamping plate and the liquid storage tank ensure the stability and the sealing performance of the structure, and the rotary connection between the inner plate and the liquid storage tank and the uniform distribution of the pinching pads further improve the convenience and the safety of the operation.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an eight-slot and eight-pole single-phase motor for an exhaust fan. Background Art

[0002] At present, the single-phase full-bridge motors on the market generally use the LB11867RV chip IC or the LB11867FV chip IC. By using a combination of P-channel MOS transistors and N-channel MOS transistors, the operation of the motor can be controlled with a single power supply voltage. However, the existing exhaust fans generally use four-slot and four-pole single-phase motors, which will generate relatively large vibration and noise during operation and have poor stability. This is caused by the relatively small number of slots and pole pairs in the structure, resulting in relatively uneven magnetic field distribution and poor sinusoidality, and thus improvement is needed. Content of the Utility Model

[0003] The purpose of the utility model is to solve the technical problems raised in the above background art.

[0004] The utility model adopts the following technical scheme: an eight-slot and eight-pole single-phase motor for an exhaust fan, including a bracket, a protective cover is arranged at the top of the bracket, a bolt A is arranged at the bottom of the protective cover, an iron shell is installed at the top of the protective cover, a main shaft is arranged inside the iron shell, a waveform gasket is arranged at the bottom of the main shaft, a C-shaped snap ring is arranged at the bottom of the main shaft, a bearing is arranged on the surface of the main shaft, a graphite gasket is arranged at the top of the bearing, a control board is arranged inside the protective cover, a bolt B is arranged at the top of the control board, a magnetic ring is arranged inside the iron shell, an iron core is arranged inside the magnetic ring, a copper wire is arranged on the surface of the iron core, a liquid storage tank is arranged at the top of the iron shell, a sponge gasket is installed on the inner wall of the liquid storage tank, an outer plate is arranged on the surface of the liquid storage tank, a fixing plate A is installed at the top of the outer plate, a clamping plate is installed inside the fixing plate A, a fixing plate B is installed at the top of the clamping plate, an inner plate is installed inside the fixing plate B, and a pinch pad is installed at the top of the clamping plate.

[0005] Preferably, an installation groove is opened at the top of the bracket, the protective cover is installed at the top of the bracket through the bolt A and the installation groove, and the bolt A is rotatably connected to the bracket through the installation groove. Here, the stability of the structure is enhanced.

[0006] Preferably, the main shaft is rotatably connected to the bracket, the main shaft is rotatably connected to the bearing, and the main shaft is rotatably connected to the iron core. Here, the energy loss is reduced.

[0007] Preferably, the C-shaped snap ring is slidably connected to the bracket, and the waveform gasket is rotatably connected to the main shaft. Here, the flexible cooperation and efficient transmission between components are realized.

[0008] Preferably, the sponge pad is rotatably connected to the main shaft. A guide groove is provided inside the liquid storage tank, and a sealing pad is installed at the top of the liquid storage tank. Here, an efficient and safe lubrication and cooling system is provided.

[0009] Preferably, the outer plate is rotatably connected to the liquid storage tank through Thread A and Thread B, and the clamping plate is rotatably connected to the liquid storage tank. Here, a stable and flexible structural configuration is provided.

[0010] Preferably, the inner plate is rotatably connected to the liquid storage tank, and the pinching pads are evenly distributed at the top of the clamping plate. Here, an efficient and stable structural solution is provided. This design not only ensures the smoothness and flexibility of the inner plate during rotation but also optimizes the pressure distribution through the even distribution of the pinching pads, reducing local stress concentration, thereby improving the durability and reliability of the overall structure.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] In the present utility model, by providing a liquid storage tank, a sponge pad, a guide groove, a sealing pad, Thread A, an outer plate, Thread B, a fixing plate A, a clamping plate, a fixing plate B, an inner plate, and pinching pads, the optimization of the motor structure and the enhancement of its functions are achieved. The rotatable connection between the sponge pad and the main shaft and the design of the guide groove inside the liquid storage tank contribute to lubrication and cooling, extending the service life of the motor. The threaded connection between the outer plate and the liquid storage tank and the rotatable connection between the clamping plate and the liquid storage tank ensure the stability and sealing of the structure. The rotatable connection between the inner plate and the liquid storage tank and the even distribution of the pinching pads further improve the convenience and safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of an eight-slot and eight-pole single-phase motor for an exhaust fan proposed by the present utility model;

[0014] Figure 2 is an exploded view of an eight-slot and eight-pole single-phase motor for an exhaust fan proposed by the present utility model;

[0015] Figure 3 is an exploded bottom view of an eight-slot and eight-pole single-phase motor for an exhaust fan proposed by the present utility model;

[0016] Figure 4 is an eight-slot and eight-pole single-phase motor for an exhaust fan proposed by the present utility model Figure 2 enlarged view at A;

[0017] Figure 5 is an eight-slot and eight-pole single-phase motor for an exhaust fan proposed by the present utility model Figure 2 enlarged view at B.

[0018] Legend Explanation:

[0019] 1. Bracket; 2. Installation Groove; 3. Protective Cover; 4. Bolt A; 5. Iron Shell; 6. Main Shaft; 7. Wave Washer; 8. C-Type Snap Ring; 9. Bearing; 10. Graphite Gasket; 11. Control Board; 12. Bolt B; 13. Magnetic Ring; 14. Iron Core; 15. Copper Wire; 16. Liquid Storage Tank; 17. Sponge Pad; 18. Guide Groove; 19. Sealing Gasket; 20. Thread A; 21. Outer Plate; 22. Thread B; 23. Fixed Plate A; 24. Clamping Plate; 25. Fixed Plate B; 26. Inner Plate; 27. Squeezing Pad. Detailed Implementation Manner

[0020] In order to more clearly understand the above objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification. Embodiment

[0022] Please refer to Figures 1-5, the present utility model provides a technical solution: an eight-slot and eight-pole single-phase motor for an exhaust fan, including a bracket 1. At the top of the bracket 1, there is a protective cover 3. At the bottom of the protective cover 3, there is a bolt A4. At the top of the protective cover 3, an iron shell 5 is installed. Inside the iron shell 5, there is a main shaft 6. At the bottom of the main shaft 6, there is a wave washer 7. At the bottom of the wave washer 7, there is a C-shaped snap ring 8. On the surface of the main shaft 6, there is a bearing 9. At the top of the bearing 9, there is a graphite washer 10. Inside the protective cover 3, there is a control board 11. At the top of the control board 11, there is a bolt B12. Inside the iron shell 5, there is a magnetic ring 13. Inside the magnetic ring 13, there is an iron core 14. On the surface of the iron core 14, there is a copper wire 15. At the top of the iron shell 5, there is a liquid storage tank 16. Inside the inner wall of the liquid storage tank 16, there is a sponge pad 17. On the surface of the liquid storage tank 16, there is an outer plate 21. At the top of the outer plate 21, there is a fixing plate A23. Inside the fixing plate A23, there is a clamping plate 24. At the top of the clamping plate 24, there is a fixing plate B25. Inside the fixing plate B25, there is an inner plate 26. At the top of the clamping plate 24, there is a pinch pad 27. By setting the liquid storage tank 16, the sponge pad 17, the guide groove 18, the sealing pad 19, the thread A20, the outer plate 21, the thread B22, the fixing plate A23, the clamping plate 24, the fixing plate B25, the inner plate 26 and the pinch pad 27, the optimization of the motor structure and the enhancement of functions are realized. The rotational connection between the sponge pad 17 and the main shaft 6 and the design of the guide groove 18 inside the liquid storage tank 16 contribute to lubrication and cooling, extending the service life of the motor. The threaded connection between the outer plate 21 and the liquid storage tank 16 and the rotational connection between the clamping plate 24 and the liquid storage tank 16 ensure the structural stability and sealing. The rotational connection between the inner plate 26 and the liquid storage tank 16 and the uniform distribution of the pinch pad 27 further improve the operation convenience and safety. At the top of the bracket 1, there is an installation groove 2. The protective cover 3 is installed on the top of the bracket 1 through the bolt A4 and the installation groove 2. The bolt A4 is rotationally connected between the installation groove 2 and the bracket 1, enhancing the structural stability and also allowing the protective cover 3 to be easily adjusted or removed when needed, facilitating maintenance and repair. The rotational connection reduces the stress concentration caused by fixed installation, extends the service life of the motor, and improves the overall operation efficiency and safety. The main shaft 6 is rotationally connected with the bracket 1, the main shaft 6 is rotationally connected with the bearing 9, and the main shaft 6 is rotationally connected with the iron core 14, reducing energy loss and improving the running smoothness at the same time. This design also facilitates the independent maintenance and replacement of each component, extends the service life of the overall equipment, and ensures the performance reliability of the motor during long-term operation. The C-shaped snap ring 8 is slidably connected with the bracket 1, and the wave washer 7 is rotationally connected with the main shaft 6, realizing the flexible cooperation and efficient transmission between components, having the advantages of improving equipment stability, extending service life, reducing wear and maintenance costs, etc. The sponge pad 17 is rotationally connected with the main shaft 6. Inside the liquid storage tank 16, there is a guide groove 18. At the top of the liquid storage tank 16, there is a sealing pad 19, providing an efficient and safe lubrication and cooling system.This configuration ensures that when the main shaft 6 rotates, the sponge pad 17 can evenly distribute the lubricating oil and guide it to the part that needs lubrication through the guide groove 18, while maintaining the sealing of the system to prevent the leakage of the lubricating oil. The outer plate 21 is rotatably connected to the liquid storage tank 16 through the thread A20 and the thread B22, the clamping plate 24 is rotatably connected to the liquid storage tank 16, and the inner plate 26 is rotatably connected to the liquid storage tank 16. The pinch pads 27 are evenly distributed on the top of the clamping plate 24, providing a stable and flexible structural configuration. This design allows the outer plate 21 and the clamping plate 24 to rotate relatively independently while maintaining the connection with the liquid storage tank 16, which is convenient for installation, adjustment and maintenance.

[0023] Working principle: When in use, first fix the protective cover 3 to the top of the bracket 1 through the bolt A4 and the mounting groove 2, and then fix the bracket 1 to the required position, and then it can be used. During use, the magnetic ring 13, the iron core 14 and the copper wire 15 can achieve better use effects, so that the main shaft 6 can be used more efficiently through the bearing 9 inside the protective cover 3 and the iron shell 5. During use, the lubricating oil inside the liquid storage tank 16 will be introduced into the inside of the sponge pad 17 through the guide groove 18, and evenly applied to the surface of the main shaft 6. After long-term use, when the lubricating oil needs to be replenished, the card plate 24 is pinched by the pinch pad 27 and rotated, so that the card plate 24 can drive the outer plate 21 to rotate together through the fixed plate A23, and the outer plate 21 can rotate upward on the surface of the liquid storage tank 16 through the thread B22 and the thread A20. After the outer plate 21 is completely rotated out of the surface of the liquid storage tank 16, the clamping plate 24 drives the inner plate 26 to rotate upward through the fixing plate B25, so that it slides upward on the top of the sealing gasket 19 and detaches from the top of the liquid storage tank 16 to replenish lubricating oil. When it is necessary to continue to maintain the main shaft 6, first remove the cover 3 from the top of the bracket 1 through the bolt A4 and the mounting groove 2, and then remove the bolts B12 from the top of the control board 11, and then remove the C-type retaining ring 8 from the surface of the main shaft 6. At this time, pinch the main shaft 6 and pull it downward to slide the main shaft 6 downward inside the bearing 9 and the graphite gasket 10. When the main shaft 6 slides out completely, it can be maintained. During use, the role of the corrugated gasket 7 and the graphite gasket 10 during use is to eliminate the clearance of the bearing 9, thereby reducing the noise and vibration of the bearing.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An eight-slot and eight-pole single-phase motor for an exhaust fan, comprising a bracket (1), characterized in that: A protective cover (3) is provided at the top end of the bracket (1). A bolt A (4) is provided at the bottom end of the protective cover (3). An iron shell (5) is installed at the top end of the protective cover (3). A main shaft (6) is provided inside the iron shell (5). A wave washer (7) is provided at the bottom end of the main shaft (6). A C-shaped snap ring (8) is provided at the bottom end of the main shaft (6). A bearing (9) is provided on the surface of the main shaft (6). A graphite gasket (10) is provided at the top end of the bearing (9). A control board (11) is provided inside the protective cover (3). A bolt B (12) is provided at the top end of the control board (11). A magnetic ring (13) is provided inside the iron shell (5). An iron core (14) is provided inside the magnetic ring (13). A copper wire (15) is provided on the surface of the iron core (14). A liquid storage tank (16) is provided at the top end of the iron shell (5). A sponge pad (17) is installed on the inner wall of the liquid storage tank (16). An outer plate (21) is provided on the surface of the liquid storage tank (16). A fixing plate A (23) is installed at the top end of the outer plate (21). A clamping plate (24) is installed inside the fixing plate A (23). A fixing plate B (25) is installed at the top end of the clamping plate (24). An inner plate (26) is installed inside the fixing plate B (25). A pinch pad (27) is installed at the top end of the clamping plate (24).

2. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, characterized in that: An installation groove (2) is provided at the top end of the bracket (1). The protective cover (3) is installed at the top end of the bracket (1) through the bolt A (4) and the installation groove (2). The bolt A (4) is rotatably connected to the bracket (1) through the installation groove (2).

3. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, wherein: The main shaft (6) is rotatably connected to the bracket (1), the main shaft (6) is rotatably connected to the bearing (9), and the main shaft (6) is rotatably connected to the iron core (14).

4. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, wherein: The C-shaped snap ring (8) is slidably connected to the bracket (1), and the wave washer (7) is rotatably connected to the main shaft (6).

5. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, characterized in that: The sponge pad (17) is rotatably connected to the main shaft (6). A guide groove (18) is provided inside the liquid storage tank (16). A sealing pad (19) is installed at the top end of the liquid storage tank (16).

6. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, characterized in that: The outer plate (21) is rotatably connected to the liquid storage tank (16) through a thread A (20) and a thread B (22). The clamping plate (24) is rotatably connected to the liquid storage tank (16).

7. The eight-slot and eight-pole single-phase motor for an exhaust fan according to claim 1, characterized in that: The inner plate (26) is rotatably connected to the liquid storage tank (16). The pinch pads (27) are evenly distributed at the top end of the clamping plate (24).

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