Single-phase asynchronous motor with energy-saving structure

Abstract

The utility model provides a single-phase asynchronous motor with an energy-saving structure, which belongs to the technical field of motors and comprises a main motor casing, a plurality of air inlet holes distributed on the outer wall of the outside of the main motor casing, a rotor seat arranged in the main motor casing, a motor rotor arranged at the top of the rotor seat, and draft fan blades fixedly connected to the output end of the motor rotor. The outer wall of the motor rotor is sleeved with a heat conduction cylinder, heat dissipation fins are distributed on the outer wall of the heat conduction cylinder, isolation cylinders are arranged on the two sides of the rotor base, a cooling cylinder is embedded in the other side of the inner wall of the main motor shell, and the middle of the cooling cylinder is rotationally connected with auxiliary fan blades. The heat dissipation area is increased through the heat conduction cylinder and the heat dissipation fins, the driving fluted disc is in linkage with the driven gear, the auxiliary fan blades rotate, a double-fan system is formed, the kinetic energy utilization rate is increased, energy consumption is reduced, the air inlet amount is increased through the air inlet holes formed in the outer wall of the main motor shell, the air circulation rate is increased, and the cooling effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a single-phase asynchronous motor with an energy-saving structure. Background Technology

[0002] Existing motors rely on internal fans for cooling, but this method has limited effectiveness and cannot efficiently dissipate heat quickly. Increasing fan power increases power consumption, resulting in low energy efficiency. The "Energy-Saving Single-Phase Asynchronous Motor" disclosed in application number "CN202220261901.6" represents a mature technology. It uses a cooling fan to blow heat out of the motor body through openings in the front cover, improving internal heat dissipation. Simultaneously, airflow passes through baffles and enters the heat dissipation fins, blowing away heat and improving external heat dissipation. However, this device has several drawbacks: the amount of cold air entering during cooling is limited, preventing the rapid intake of large amounts of cold air to cool the heat-generating components; and the limited airflow from the cooling fan further reduces energy efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a single-phase asynchronous motor with an energy-saving structure, which aims to solve the problems in the prior art where the amount of cold air entering for heat dissipation is limited, making it impossible to quickly draw a large amount of cold air into the motor to cool the heat-generating parts, and at the same time, the air volume provided by the cooling fan is limited, reducing the energy utilization rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a main motor housing, with several air inlets distributed on the outer wall of the main motor housing; a rotor seat is provided inside the main motor housing; a motor rotor is provided on the top of the rotor seat; an exhaust fan blade is fixedly connected to the output end of the motor rotor; a heat-conducting cylinder is fitted onto the outer wall of the motor rotor; heat dissipation fins are distributed on the outer wall of the heat-conducting cylinder; insulation cylinders are provided on both sides of the rotor seat; a cooling cylinder is embedded on the other side of the inner wall of the main motor housing; and an auxiliary fan blade is rotatably connected to the middle of the cooling cylinder.

[0005] In an embodiment of the single-phase asynchronous motor with an energy-saving structure of this utility model, a shaft groove is rotatably opened in the middle of the rotor seat, bearings are provided on both sides of the inner wall of the shaft groove, a main shaft is connected in the middle of the bearing, driven gears are fixedly connected at both ends of the main shaft, and a drive gear is provided in the middle of the output end of the motor rotor, and the drive gear meshes with the driven gear at one end of the main shaft.

[0006] In this scheme, after power is turned on, the motor rotor rotates, which drives the exhaust fan blades to rotate. External cold air is drawn into the main motor housing through the air inlet and flows into the isolation cylinder. At this time, the drive gear at the output end of the motor rotor rotates, which drives the driven gear meshing with one end of the main shaft, causing the main shaft to rotate.

[0007] In one embodiment of the single-phase asynchronous motor with an energy-saving structure of this utility model, a driven gear disk is provided in the middle of the auxiliary fan blade, and the driven gear disk is meshed with the driven gear at the other end of the main shaft.

[0008] In this design, when the main shaft rotates, the driven gear disk meshing with the driven gear at the other end of the main shaft rotates, driving the auxiliary fan blades to rotate. At this time, the drawn-in cold airflow enters the insulation cylinder and carries away the heat from the heat conduction cylinder and the heat dissipation fins. The hot airflow is drawn out by the auxiliary fan blades, forming an air circulation, which improves the displacement reaction of the cold and hot airflow and improves the cooling effect.

[0009] In one embodiment of the single-phase asynchronous motor with an energy-saving structure of this utility model, the cooling cylinder and the heat-conducting cylinder are sealed at one end, and the main motor housing is provided with an air inlet chamber and an air outlet chamber separated by the heat-conducting cylinder.

[0010] In this scheme, the drawn-in cold air flows through the air inlet chamber formed outside the isolation cylinder and enters the air outlet chamber isolated by the inside of the isolation cylinder, carrying away the heat generated by the motor rotor during operation.

[0011] In one embodiment of the present invention, a dust filter cover is provided on the inner wall side of the main motor housing.

[0012] In this solution, a dust filter cover is used to isolate dust from the cold air drawn in through the air inlet.

[0013] In one embodiment of the single-phase asynchronous motor with an energy-saving structure of this utility model, an exhaust pipe is threadedly connected to the other side of the cooling cylinder, and a filter screen is provided on the inner wall of the exhaust pipe.

[0014] In this design, after the heat exchange is completed, the hot air containing heat is drawn into the exhaust pipe by the auxiliary fan blades and discharged.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1) The heat dissipation area is increased by the heat-conducting cylinder and heat dissipation fins. The auxiliary fan blades are rotated by the linkage between the active gear disk and the driven gear, forming a dual fan system, which improves the kinetic energy utilization rate and reduces energy consumption.

[0017] 2) The air intake holes on the outer wall of the main motor housing increase the amount of air entering and expand the air circulation to improve the cooling effect. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the disassembly structure of the main motor housing of this utility model.

[0022] In the diagram: 1. Main motor housing; 2. Air inlet; 3. Rotor base; 4. Motor rotor;

[0023] 5. Exhaust fan blades; 6. Heat conduction cylinder; 7. Heat dissipation fins; 8. Insulation cylinder; 9. Cooling cylinder;

[0024] 10. Secondary fan blades; 11. Shaft groove; 12. Bearing; 13. Main shaft; 14. Driven gear; 15. Driven gear disc; 16. Driven gear disc; 17. Air inlet chamber; 18. Air outlet chamber; 19. Dust filter cover;

[0025] 20. Exhaust pipe; 21. Filter screen. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-3 The present invention provides the following technical solution: a single-phase asynchronous motor with an energy-saving structure, including a main motor housing 1, a plurality of air inlet holes 2 distributed on the outer wall of the main motor housing 1, a rotor seat 3 inside the main motor housing 1, a motor rotor 4 on the top of the rotor seat 3, an exhaust fan blade 5 fixedly connected to the output end of the motor rotor 4, a heat conduction cylinder 6 sleeved on the outer wall of the motor rotor 4, heat dissipation fins 7 distributed on the outer wall of the heat conduction cylinder 6, an isolation cylinder 8 on both sides of the rotor seat 3, a cooling cylinder 9 embedded on the other side of the inner wall of the main motor housing 1, and an auxiliary fan blade 10 rotatably connected to the middle of the cooling cylinder 9.

[0028] In a specific embodiment of a single-phase asynchronous motor with an energy-saving structure, please refer to... Figure 2The rotor base 3 has a rotating shaft groove 11 in the middle. The inner wall of the rotating shaft groove 11 has bearings 12 on both sides. The main rotating shaft 13 is connected in the middle of the bearing 12. Driven gears 14 are fixedly connected at both ends of the main rotating shaft 13. The output end of the motor rotor 4 has a drive gear 15 in the middle. The drive gear 15 meshes with the driven gear 14 at one end of the main rotating shaft 13.

[0029] Please see Figure 2 After power is applied, the motor rotor 4 rotates, driving the exhaust fan blade 5 to rotate. External cold air is drawn into the main motor housing 1 through the air inlet 2 and flows into the isolation cylinder 8. At this time, the drive gear 15 at the output end of the motor rotor 4 rotates, driving the driven gear 14 that meshes with one end of the main shaft 13, causing the main shaft 13 to rotate.

[0030] In a specific embodiment of a single-phase asynchronous motor with an energy-saving structure, please refer to... Figure 2 The auxiliary fan blade 10 has a driven gear 16 in the middle, which meshes with the driven gear 14 at the other end of the main shaft 13.

[0031] Please see Figure 2 When the main shaft 13 rotates, the driven gear 16, which meshes with the driven gear 14 at the other end of the main shaft 13, rotates, driving the auxiliary fan blades 10 to rotate. At this time, the cold airflow is drawn into the insulation cylinder 8 and carries away the heat in the heat conduction cylinder 6 and the heat dissipation fins 7. The hot airflow is drawn out by the auxiliary fan blades 10, forming an air circulation, which improves the displacement reaction of the cold and hot airflow and improves the cooling effect.

[0032] In a specific embodiment of a single-phase asynchronous motor with an energy-saving structure, please refer to... Figure 2 The cooling cylinder 9 is sealed to the heat-conducting cylinder 6 at one end, and the main motor housing 1 is separated by the heat-conducting cylinder 6 into an air inlet chamber 17 and an air outlet chamber 18.

[0033] Please see Figure 2 The drawn-in cold air flows through the air inlet cavity 17 formed outside the isolation cylinder 8 and enters the air outlet cavity 18 isolated by the inside of the isolation cylinder 8, carrying away the heat generated by the motor rotor 4 during operation.

[0034] In a specific embodiment of a single-phase asynchronous motor with an energy-saving structure, please refer to the figure: a dust filter cover 19 is provided on the inner wall side of the main motor housing 1.

[0035] Please refer to the figure: Dust in the cold air drawn in through the air inlet 2 is isolated by the dust filter cover 19.

[0036] In a specific embodiment of a single-phase asynchronous motor with an energy-saving structure, please refer to the figure: an exhaust pipe 20 is threadedly connected to the other side of the cooling cylinder 9, and a filter screen 21 is provided on the inner wall of the exhaust pipe 20.

[0037] Please refer to the figure: After the heat exchange is completed, the hot air containing heat is drawn into the exhaust pipe 20 by the auxiliary fan blade 10 and discharged.

[0038] This utility model provides a single-phase asynchronous motor with an energy-saving structure. Specifically, after power is applied, the motor rotor 4 rotates, driving the exhaust fan blades 5 to rotate. External cold air is drawn into the main motor housing 1 through the air inlet 2. The drawn-in cold air flows sequentially through the air inlet cavity 17 formed outside the isolation cylinder 8 and is drawn into the air outlet cavity 18 isolated internally by the exhaust fan blades 5. At this time, the cold air carries away the heat from the heat-conducting cylinder 6 and the heat dissipation fins 7. When the main shaft 13 rotates, the driven gear 16, meshing with the driven gear 14 at the other end of the main shaft 13, rotates, driving the auxiliary fan blades 10 to rotate. The hot air is drawn out by the auxiliary fan blades 10. After the heat exchange is complete, the hot air containing heat is drawn into the exhaust pipe 20 by the auxiliary fan blades 10 and discharged. The auxiliary fan blades 10 rotate through the linkage of the active gear 15 with the driven gear 14, forming a dual-fan system. This improves kinetic energy utilization and reduces energy consumption. Simultaneously, the air inlet 2 on the outer wall of the main motor housing 1 increases the air intake, expands air circulation, and improves the cooling effect.

[0039] 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 single-phase asynchronous motor with an energy-saving structure, comprising a main motor housing (1), characterized in that: The outer wall of the main motor housing (1) is provided with several air inlets (2). The main motor housing (1) is provided with a rotor seat (3). The top of the rotor seat (3) is provided with a motor rotor (4). The output end of the motor rotor (4) is fixedly connected with an exhaust fan blade (5). The outer wall of the motor rotor (4) is fitted with a heat-conducting cylinder (6). The outer wall of the heat-conducting cylinder (6) is provided with heat dissipation fins (7). The rotor seat (3) is provided with insulation cylinders (8) on both sides. The inner wall of the main motor housing (1) is embedded with a cooling cylinder (9). The middle of the cooling cylinder (9) is rotatably connected with a secondary fan blade (10).

2. A single-phase induction motor having an energy saving structure according to claim 1, characterized in that: The rotor seat (3) has a rotating shaft groove (11) in the middle. The inner walls of the rotating shaft groove (11) are provided with bearings (12) on both sides. The bearings (12) are connected to the main rotating shaft (13) in the middle. The main rotating shaft (13) is fixedly connected to the driven gears (14) at both ends. The motor rotor (4) has a drive gear disk (15) in the middle of the output end. The drive gear disk (15) meshes with the driven gear (14) at one end of the main rotating shaft (13).

3. A single-phase induction motor having an energy saving structure according to claim 2, characterized in that: The secondary fan blade (10) is provided with a driven gear disk (16) in the middle, and the driven gear disk (16) is meshed with the driven gear (14) at the other end of the main rotating shaft (13).

4. A single-phase induction motor having an energy saving construction according to claim 1, characterized in that: The cooling cylinder (9) is sealed to one end of the heat-conducting cylinder (6), and the main motor housing (1) is provided with an air inlet chamber (17) and an air outlet chamber (18) separated by the heat-conducting cylinder (6).

5. A single phase induction motor having energy saving construction as claimed in claim 1 wherein: The main motor housing (1) has a dust filter cover (19) on the inner side of its inner wall.

6. A single-phase induction motor having an energy saving construction according to claim 1 characterized in that: The cooling cylinder (9) is threadedly connected to an exhaust pipe (20) on the other side, and the inner wall of the exhaust pipe (20) is provided with a filter screen (21).

Images