High-efficiency energy-saving AC / DC motor
By designing light load start components and heat dissipation components in AC and DC motors, the problem of large torque and current demand during motor start-up is solved, and the light load start and load rotation of the motor is achieved, and energy consumption is saved and service life is extended through effective heat dissipation.
Patent Information
- Application Number
- CN202411953568.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-05-23
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing AC and DC motors require large torque and working current during startup, which can easily lead to mismatch between the motor and the load, reducing efficiency and increasing energy consumption.
A high-efficiency and energy-saving AC and DC motor is designed, using light load start-up components and heat dissipation components. The light-load start assembly realizes light-load start and drives the load to rotate simultaneously through the cooperation of the shaft sleeve, sleeve and limit block; the heat dissipation assembly includes first-stage, second-stage and third-stage heat dissipation components, and effectively dissipates through structures such as expansion blocks, fan frames, airbags and cooling pipelines.
The light load start and synchronous load rotation of the motor is realized, avoiding the problem of mismatch between the motor and the load, saving energy consumption, and extending the service life of the motor through effective heat dissipation.
Smart Images
Figure CN120033900A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of AC and DC motors, and in particular relates to a high-efficiency and energy-saving AC and DC motor. Background Art
[0002] AC / DC dual-purpose motors refer to motors that can work under both DC power supply and AC power supply. Since motors are widely used, their working efficiency is a common concern. High-efficiency motors are of great significance to energy conservation and emission reduction. Since the output end of the motor is connected to a load, a large torque is required to drive the load to rotate synchronously during the startup process. At this time, a large working current is required to meet the startup requirements, which easily leads to mismatch between the motor and the load, reduced efficiency, and increased energy consumption.
[0003] Therefore, it is necessary to provide an efficient and energy-saving AC / DC motor that can be started with a light load and drive the load to rotate synchronously after the motor is started, avoiding the situation where the motor and the load do not match and a "big horse pulling a small cart" occurs. At the same time, the motor can effectively dissipate heat inside to achieve the effect of saving energy. Summary of the invention
[0004] The object of the present invention is to provide a high-efficiency and energy-saving AC and DC motor to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A high-efficiency and energy-saving AC / DC motor, comprising a shell, a light-load starting component and a heat dissipation component, wherein the light-load starting component is arranged inside the shell, and the two ends of the shell are respectively connected to an end cover and a bottom cover, and the bottom cover upper bearing is connected to a rotating shaft, and the light-load starting component comprises a sleeve and a sleeve, and the sleeve is sleeved outside the sleeve, and the sleeve is clamped with the rotating shaft, and a movable groove is opened on the sleeve, and a limiting block is arranged in the movable groove, and the movable groove and the limiting block are both T-shaped, and the limiting block is connected to the sleeve near the rotating shaft through an elastic connecting piece, and the limiting block is slidably connected to the sleeve in the movable groove, and a limiting groove is opened inside the sleeve, and the limiting block is arranged inside the limiting groove, and an output shaft is fixedly connected to the left side of the sleeve, and the output shaft is connected to the end cover bearing.
[0006] The present invention further describes that heat dissipation holes are provided on the end cover and the bottom cover.
[0007] The present invention further illustrates that a rotor is arranged on the rotating shaft, and a stator and a temperature sensor are fixedly connected inside the shell.
[0008] The present invention further illustrates that the heat dissipation assembly includes a primary heat dissipation assembly, a secondary heat dissipation assembly and a tertiary heat dissipation assembly, the primary heat dissipation assembly includes an expansion block and a fixed frame, the expansion block is fixedly sleeved on the outside of the sleeve, the fixed frame is fixedly connected to the inside of the outer shell, the position of the fixed frame corresponds to the position of the expansion block, a fan frame is arranged inside the fixed frame, and the fan frame is arranged outside the expansion block with a gap.
[0009] The present invention further describes that fan blades are fixedly connected to the fan frame.
[0010] The present invention further illustrates that the secondary heat dissipation assembly includes an airbag, an oil storage tank and an oil channel are opened inside the output shaft, the right side of the oil storage tank is annular, the oil channel is arranged on the left side of the oil storage tank, two groups of oil channels are arranged, the oil outlet of the oil channel is arranged at the connection between the output shaft and the end cover bearing, the oil storage tank is filled with lubricating oil, and the airbag is arranged in the oil storage tank.
[0011] The present invention further illustrates that the temperature sensor is arranged on the left side of the fixed frame.
[0012] The present invention further illustrates that the three-stage heat dissipation assembly includes heat sinks and cooling pipes, the heat sinks are evenly fixed to the outside of the shell, the cooling pipes are arranged between two adjacent groups of heat sinks, and are arranged at intervals, and the cooling pipes are connected to a coolant tank and a liquid pump.
[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention adopts a light-load starting component and a heat dissipation component, can be started with a light load, and drive the load to rotate synchronously after the motor is started, avoiding the situation where the motor and the load do not match and a "big horse pulling a small cart" occurs, saving energy consumption, and at the same time effectively dissipating the heat inside the motor to increase the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural cross-sectional schematic diagram of the present invention; Figure 3 is a cross-sectional schematic diagram of a light-load starting assembly of the present invention; Figure 4 It is an enlarged schematic diagram of the A region of the present invention; Figure 5 It is a structural schematic diagram of a light-load starting component of the present invention; In the figure: 1. outer shell; 2. end cover; 3. bottom cover; 4. rotating shaft; 5. rotor; 6. stator; 7. bushing; 8. movable groove; 9. limit block; 10. sleeve; 11. limit groove; 12. output shaft; 13. expansion block; 14. fan frame; 15. fixed frame; 16. fan blades; 17. oil storage tank; 18. air bag; 19. lubricating oil; 20. heat sink; 21. cooling pipeline; 22. oil channel; 23. temperature sensor. DETAILED DESCRIPTION
[0015] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.
[0016] like Figure 1 and Figure 2 As shown, the present invention provides a technical solution: a high-efficiency and energy-saving AC / DC motor, comprising a housing 1, a light-load starting component and a heat dissipation component, the light-load starting component is arranged inside the housing 1, the two ends of the housing 1 are respectively connected to an end cover 2 and a bottom cover 3, the end cover 2 and the bottom cover 3 are both provided with heat dissipation holes, a bearing on the bottom cover 3 is connected to a rotating shaft 4, a rotor 5 is arranged on the rotating shaft 4, a stator 6 and a temperature sensor 23 are fixedly connected inside the housing 1, and the temperature sensor 23 is used to detect the internal temperature of the motor.
[0017] It should be noted that the connection methods between the housing 1 and the end cover 2 and the bottom cover 3, the rotating shaft 4 and the rotor 5, and the stator 6 and the housing 1 are all based on the prior art.
[0018] like Figure 2 , Figure 3 and Figure 4As shown, the light-load starting assembly includes a sleeve 7 and a sleeve 10. The sleeve 10 is sleeved on the outside of the sleeve 7. The sleeve 7 is clamped with the rotating shaft 4. A movable groove 8 is provided on the sleeve 7. A limit block 9 is arranged in the movable groove 8. The movable groove 8 and the limit block 9 are both T-shaped. The limit block 9 is connected to the sleeve 7 near the rotating shaft 4 through an elastic connector. The limit block 9 is slidably connected to the sleeve 7 in the movable groove 8. A limit groove 11 is provided inside the sleeve 10. The limit block 9 is arranged inside the limit groove 11. An output shaft 12 is fixedly connected to the left side of the sleeve 10. The output shaft 12 is connected to the bearing of the end cover 2. When the motor initially rotates, the rotating shaft 4 rotates, driving the sleeve 7 to rotate. Since the limit block 9 is connected to the sleeve 7 through the elastic connector, the pulling force of the elastic connector is greater than the centrifugal force of the limit block 9 during startup. The interior does not contact the sleeve 10, so that the motor can be started with a light load, reducing energy consumption during startup; after the motor is started with a light load, the centrifugal force of the limit block 9 is greater than the pulling force of the elastic connecting piece, so that the limit block 9 slides toward the periphery in the movable groove 8 under the action of centrifugal force, and contacts and clamps with the sleeve 10. At this time, the limit block 9 drives the sleeve 10 to move synchronously under the action of centrifugal force and the friction between the limit block 9 and the sleeve 10, thereby driving the output shaft 12 and the load to move synchronously; if the load connected to the output shaft 12 is too large, that is, overloaded, during the starting rotation of the motor, the centrifugal force required for the load to rotate is greater than the centrifugal force of the limit block 9 and the friction between the limit block 9 and the sleeve 10, so that the limit block 9 and the sleeve 10 slip. The situation of shortening the life of the motor due to long-term overload can be avoided.
[0019] It should be noted that the elastic connecting member may be a spring or other elastically connected components.
[0020] like Figure 4 and Figure 5 As shown, the heat dissipation component includes a primary heat dissipation component, a secondary heat dissipation component and a tertiary heat dissipation component. The primary heat dissipation component includes an expansion block 13 and a fixed frame 15. The expansion block 13 is fixedly sleeved on the outside of the sleeve 10, and the fixed frame 15 is fixedly connected to the inside of the shell 1. The position of the fixed frame 15 corresponds to the position of the expansion block 13. A fan frame 14 is arranged inside the fixed frame 15. The fan frame 14 is arranged outside the expansion block 13 with a gap. The fan frame 14 is fixedly connected with a fan blade 16. When the load on the motor output shaft 12 is too large, the limit block 9 and the sleeve 10 slip, or the internal temperature of the motor is too high after a long period of normal operation, resulting in an increase in the temperature of the sleeve 10, causing the temperature of the expansion block 13 to rise. The expansion block 13 expands due to the heat, so that the expansion block 13 is engaged with the fan frame 14, thereby driving the fan frame 14 and the fan blade 16 to rotate, so that the gas inside the motor flows, which is convenient for heat dissipation; at the same time, by arranging the fixed frame 15, the fan frame 14 and the expansion block 13, the light-load starting component can be supported, and the stability of the light-load starting component during operation is improved.
[0021] like Figure 2 and Figure 4 As shown, the secondary heat dissipation component includes an airbag 18, an oil storage tank 17 and an oil channel 22 are opened inside the output shaft 12, the right side of the oil storage tank 17 is annular, the oil channel 22 is arranged on the left side of the oil storage tank 17, and two groups of oil channels 22 are arranged. The oil outlet of the oil channel 22 is arranged at the connection between the output shaft 12 and the bearing of the end cover 2, and the oil storage tank 17 is filled with lubricating oil 19. The airbag 18 is arranged in the oil storage tank 17. When the motor is not started, the lubricating oil 19 is added to the oil storage tank 17. At this time, the added lubricating oil 19 is in the lower part of the oil storage tank 17 under the action of gravity. After the motor is started, the lubricating oil 19 Under the action of centrifugal force, the oil is evenly distributed in the oil storage tank 17. When the load on the motor output shaft 12 is too large, causing slippage between the limit block 9 and the sleeve 10, or the internal temperature of the motor is too high after a long period of normal operation, causing the temperature of the sleeve 10 to rise, the airbag 18 expands due to the heat, and squeezes the lubricating oil 19 inside the oil storage tank 17 into the oil channel 22. The lubricating oil 19 is then thrown out of the oil channel 22 to the outside of the output shaft 12 under the action of centrifugal force, so as to lubricate and cool the bearing connection between the output shaft 12 and the end cover 2, so as to avoid the bearing life of the output shaft 12 and the end cover 2 being reduced due to excessive temperature.
[0022] The temperature sensor 23 is disposed on the left side of the fixing frame 15 .
[0023] like Figure 1 As shown, the three-stage heat dissipation assembly includes heat sinks 20 and cooling pipes 21. The heat sinks 20 are evenly fixed to the outside of the housing 1. The cooling pipes 21 are arranged between two adjacent groups of heat sinks 20 at intervals. The cooling pipes 21 are connected to a coolant tank and a liquid pump.
[0024] Working principle: Under normal load conditions, when the motor initially rotates, the shaft 4 rotates, driving the sleeve 7 to rotate. Since the limit block 9 is connected to the sleeve 7 through an elastic connector, the tension of the elastic connector is greater than the centrifugal force of the limit block 9 during startup. The limit block 9 is inside the limit groove 11 and does not contact the sleeve 10, so that the motor can be started with a light load, reducing energy consumption during startup. After the motor is started with light load, the centrifugal force of the limit block 9 is greater than the pulling force of the elastic connector, so that the limit block 9 slides toward the periphery in the movable groove 8 under the action of the centrifugal force, and contacts and clamps with the sleeve 10. At this time, the limit block 9 drives the sleeve 10 to move synchronously under the action of the centrifugal force and the friction between the limit block 9 and the sleeve 10, thereby driving the output shaft 12 and the load to move synchronously; If the load connected to the output shaft 12 is too large, that is, overloaded, during the motor startup and rotation process, the centrifugal force required for the load rotation is greater than the centrifugal force of the limit block 9 and the friction between the limit block 9 and the sleeve 10, causing slippage between the limit block 9 and the sleeve 10, thereby avoiding the situation where the motor is overloaded for a long time and its life is reduced.
[0025] The first-level heat dissipation component and the second-level heat dissipation component start when the load on the motor output shaft 12 is too large, causing slippage between the limit block 9 and the sleeve 10, or the internal temperature of the motor is too high after a long period of normal operation, causing the temperature of the sleeve 10 to rise. The expansion block 13 of the first-level heat dissipation component expands due to the heat, engages with the fan frame 14, drives the fan frame 14 and the fan blades 16 to rotate, improves the gas flow inside the motor, and dissipates the heat inside the motor; the air bag 18 of the second-level heat dissipation component expands due to the heat, squeezes the lubricating oil 19 inside the oil storage tank 17 into the oil channel 22, and the lubricating oil 19 is then thrown out from the oil channel 22 to the outside of the output shaft 12 under the action of centrifugal force, so as to lubricate and cool the connection between the output shaft 12 and the bearing of the end cover 2.
[0026] The heat sink 20 of the three-stage heat dissipation component continuously dissipates heat for the motor, and when the temperature measured by the temperature sensor 23 is higher than the set temperature, the cooling liquid is introduced into the cooling pipe 21 to cool the motor. The temperature sensor 23 is electrically connected to the control end of the motor, and the control end is provided with two-stage temperature control. The first-stage temperature is the start-up temperature of the liquid pump, and the second-stage temperature is the stop temperature of the motor. The second-stage temperature is higher than the first-stage temperature. When the internal temperature of the motor reaches the first-stage temperature, the liquid pump starts to pump the coolant in the coolant tank into the cooling pipe 21 to cool the motor. At the same time, the temperature around the heat sink 20 can be reduced to improve the heat dissipation effect of the heat sink 20. When the internal temperature of the motor reaches the second-stage temperature, the motor stops running to avoid the motor temperature being too high and causing a shortened life. At this time, the liquid pump continues to start until the internal temperature of the motor drops to the first-stage temperature, and then the liquid pump stops.
[0027] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A high-efficiency and energy-saving AC / DC motor, comprising a housing (1), a light-load starting component and a heat dissipation component, characterized in that: The light-load starting assembly is arranged inside the housing (1); the two ends of the housing (1) are respectively connected to an end cover (2) and a bottom cover (3); a bearing on the bottom cover (3) is connected to a rotating shaft (4); the light-load starting assembly comprises a shaft sleeve (7) and a sleeve (10); the sleeve (10) is sleeved outside the shaft sleeve (7); the shaft sleeve (7) is clamped with the rotating shaft (4); a movable groove (8) is formed on the shaft sleeve (7); a limit block (9) is arranged in the movable groove (8); the movable groove (8) is provided with a limit block (9 ... The movable groove (8) and the limit block (9) are both T-shaped. The limit block (9) is connected to the shaft sleeve (7) via an elastic connector on the side close to the rotating shaft (4). The limit block (9) is slidably connected to the shaft sleeve (7) in the movable groove (8). A limit groove (11) is provided inside the sleeve (10). The limit block (9) is arranged inside the limit groove (11). An output shaft (12) is fixedly connected to the left side of the sleeve (10). The output shaft (12) is connected to a bearing of the end cover (2). The heat dissipation assembly comprises a primary heat dissipation assembly, a secondary heat dissipation assembly and a tertiary heat dissipation assembly, the primary heat dissipation assembly comprises an expansion block (13) and a fixed frame (15), the expansion block (13) is fixedly sleeved on the outside of the sleeve (10), the fixed frame (15) is fixedly connected to the inside of the housing (1), the position of the fixed frame (15) corresponds to the position of the expansion block (13), a fan frame (14) is arranged inside the fixed frame (15), and the fan frame (14) is arranged outside the expansion block (13) with a gap left; The secondary heat dissipation component comprises an air bag (18), an oil storage tank (17) and an oil passage (22) are provided inside the output shaft (12), the right side of the oil storage tank (17) is annular, the oil passage (22) is arranged on the left side of the oil storage tank (17), two groups of the oil passage (22) are provided, the oil outlet of the oil passage (22) is arranged at the connection between the output shaft (12) and the bearing of the end cover (2), the oil storage tank (17) is filled with lubricating oil (19), and the air bag (18) is arranged in the oil storage tank (17).
2. The high-efficiency energy-saving AC / DC motor according to claim 1, characterized in that: The temperature sensor (23) is arranged on the left side of the fixed frame (15).
3. The high-efficiency energy-saving AC / DC motor according to claim 1, characterized in that: The three-stage heat dissipation assembly comprises heat sinks (20) and cooling pipes (21), wherein the heat sinks (20) are evenly fixed to the outside of the housing (1), and the cooling pipes (21) are arranged between two adjacent groups of heat sinks (20) at intervals, and the cooling pipes (21) are connected to a coolant tank and a liquid pump.