High-speed motor based on cooling optimization design

Abstract

The application relates to the field of high-speed motor cooling, and discloses a high-speed motor based on cooling optimization design, which comprises a motor shell, a heat exchange mechanism is arranged in the motor shell, the heat exchange mechanism comprises a flow guide plate and a heat exchange channel, the heat exchange channel is arranged in the motor shell, the two ends of the heat exchange channel are communicated with the internal space of the motor shell, the flow guide plate is fixedly connected to the inner side of the motor shell and corresponds to the inlet of the heat exchange channel, and a plurality of strong magnets are fixedly connected to the inner wall of the motor shell. The motor shell is cooled by water mist, the evaporation efficiency is increased through air cooling, the efficiency of heat absorption and heat removal is accelerated, the surface of the heat dissipation fin can be cleaned by spraying, and dust accumulation is prevented; meanwhile, the heat transfer between the rotor and the motor shell is accelerated by adding cooling oil in the motor, and the speed of heat transfer from the internal cooling oil to the heat dissipation fin is increased through the design of the heat exchange channel and the flow guide plate.

Description

Technical Field

[0001] This invention belongs to the field of high-speed motor cooling technology, specifically, it relates to a high-speed motor based on cooling optimization design. Background Technology

[0002] High-speed motors based on cooling optimization design are one of the key research and application directions in the current motor field. High-speed motors operate at high frequencies and speeds, resulting in a significant increase in iron losses, copper losses, and mechanical losses, generating excessive heat. If heat dissipation is not effective, excessive temperature rise in the motor can lead to problems such as accelerated insulation aging and demagnetization of permanent magnets, seriously affecting the motor's lifespan and performance. A stable temperature environment can ensure that the motor's electromagnetic parameters and mechanical characteristics remain constant, avoiding output power fluctuations, efficiency reduction, and increased operating vibration and noise caused by overheating, which is beneficial for reliable operation in industrial precision drives, electric vehicles, and other scenarios.

[0003] Existing high-speed motors generally use a single air-cooling method for cooling. A fan is used to make air flow over the motor casing and heat sink fins to remove heat. The structure is simple and low-cost, but the heat dissipation efficiency is limited. It is inadequate for high-speed motors with harsh operating conditions. In addition, increasing air circulation will also increase the accumulation of dust on the heat sink fins, preventing the motor from dissipating heat. Being in a high-temperature state for a long time will lead to a reduction in the lifespan and performance of the motor. At the same time, the heat of the traditional motor rotor can only be dissipated by the internal air to the motor casing. The efficiency of air transfer is extremely limited. Often, when the motor is operating at high power, it cannot dissipate heat quickly, resulting in a decrease in power.

[0004] To address these issues and shortcomings, the inventors have developed a high-speed motor based on optimized cooling design. Summary of the Invention

[0005] To address the technical problems mentioned above, such as limited heat dissipation efficiency when using a single air-cooling method, increased dust accumulation on the heat sink fins due to increased airflow leading to insufficient heat dissipation from the motor, and the extremely limited efficiency of traditional motor rotor heat transfer which relies solely on internal airflow to the motor casing, the basic concept of the technical solution adopted in this invention is as follows:

[0006] A high-speed motor based on cooling optimization design includes a motor housing. A heat exchange mechanism is disposed inside the motor housing. The heat exchange mechanism includes a guide plate and a heat exchange channel. The heat exchange channel is located inside the motor housing, and both ends of the heat exchange channel communicate with the internal space of the motor housing. The guide plate is fixedly connected to the inner side of the motor housing and corresponds to the inlet of the heat exchange channel. Several strong magnets are fixedly connected to the inner wall of the motor housing. A rotor is installed inside the motor housing. A drive shaft is fixedly sleeved at the center of the rotor. Both ends of the drive shaft pass through both ends of the motor housing and are sealed to them.

[0007] In a preferred embodiment of the present invention, a plurality of heat dissipation fins are fixedly connected to the outer surface of the motor housing, a protective housing is fixedly connected to the outer periphery of the heat dissipation fins, a diverter pipe is fixedly sleeved on one end of the protective housing, a plurality of nozzles are fixedly installed on the inner side of the diverter pipe, the nozzles penetrate the protective housing and are fixedly sleeved thereon, and a plurality of air inlets are opened at one end of the protective housing.

[0008] In a preferred embodiment of the present invention, a water tank is fixedly connected to the lower end of the protective shell, a base is fixedly connected to the lower end of the water tank, and a water inlet is provided on one side of the water tank.

[0009] In a preferred embodiment of the present invention, a fan blade is fixedly installed at one end of the drive shaft near the air inlet, the fan blade being positioned corresponding to the opening of the air inlet and corresponding to one end of the heat sink.

[0010] In a preferred embodiment of the present invention, a pump box is fixedly connected to one end of the air inlet of the protective shell, a piston pump is fixedly installed inside the pump box, a water inlet check valve is fixedly installed on the side of the piston pump, a water inlet pipe is fixedly connected to one end of the outer side of the water inlet check valve, and the lower end of the water inlet pipe passes through the bottom of the water tank and is fixedly sleeved thereto.

[0011] In a preferred embodiment of the present invention, a one-way valve is fixedly installed at the upper end of the piston pump, and a water outlet pipe is fixedly connected to the upper end of the one-way valve. The other end of the water outlet pipe is fixedly connected to a diversion pipe, and a piston is sealed inside the piston pump.

[0012] In a preferred embodiment of the present invention, a connecting plate is fixedly connected to the lower end of the piston, a rocker arm is movably connected to the lower end of the connecting plate, an eccentric disk is movably connected to the lower end of the rocker arm, a shaft is fixedly connected to the center of the eccentric disk, the shaft penetrates the protective shell and is movably sleeved with it, and the shaft corresponds to one end of the fan blade of the transmission shaft and is fixedly connected with it.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention employs a method of cooling the motor casing with water mist and then increasing evaporation efficiency through air cooling. Because water mist has a higher specific heat capacity than air, it effectively accelerates the absorption and removal of heat. At the same time, the spray continuously cleans the surface of the heat sink, preventing dust accumulation. Furthermore, by adding cooling oil inside the motor, the heat transfer between the rotor and the motor casing is accelerated. Simultaneously, the design of the heat exchange channel and the diversion plate increases the speed at which the internal cooling oil transfers heat to the heat sink, achieving a rapid heat dissipation effect.

[0015] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram:

[0017] Figure 1 This is a three-dimensional overall front view schematic diagram of a high-speed motor based on cooling optimization design;

[0018] Figure 2 This is a three-dimensional overall rear view schematic diagram of a high-speed motor based on cooling optimization design;

[0019] Figure 3 This is a rear cross-sectional view of a high-speed motor based on cooling optimization design.

[0020] Figure 4 This is a disassembly diagram of a spraying mechanism based on a high-speed motor with optimized cooling design.

[0021] Figure 5 This is a cross-sectional schematic diagram of a spraying mechanism based on a high-speed motor with optimized cooling design.

[0022] Figure 6 This is a schematic diagram showing the installation position of a spraying mechanism based on a high-speed motor with optimized cooling design.

[0023] Figure 7 A front view schematic diagram of the internal structure of a high-speed motor based on cooling optimization design;

[0024] Figure 8 This is a schematic cross-sectional view of the casing of a high-speed motor based on cooling optimization design.

[0025] In the diagram: 1. Motor housing; 2. Heat sink; 3. Protective housing; 4. Diverter pipe; 5. Water outlet pipe; 6. Air inlet; 7. Water tank; 8. Base; 9. Water inlet; 10. Drive shaft; 11. Pump box; 12. Water inlet pipe; 13. Nozzle; 14. Fan blade; 15. Piston pump; 16. Water outlet check valve; 17. Water inlet check valve; 18. Connecting plate; 19. Rocker arm; 20. Eccentric disc; 21. Piston; 22. Rotor; 23. Strong magnet; 24. Drain plate; 25. Heat exchange channel. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0027] like Figures 1 to 8 As shown, a high-speed motor based on cooling optimization design includes a motor housing 1. A heat exchange mechanism is installed inside the motor housing 1, including a guide plate 24 and a heat exchange channel 25. The heat exchange channel 25 is located inside the motor housing 1, and both ends of the heat exchange channel 25 communicate with the internal space of the motor housing 1. The guide plate 24 is fixedly connected to the inner side of the motor housing 1 and corresponds to the inlet of the heat exchange channel 25. Several strong magnets 23 are fixedly connected to the inner wall of the motor housing 1. A rotor 22 is installed inside the motor housing 1. A drive shaft 10 is fixedly sleeved at the center of the rotor 22. Both ends of the drive shaft 10 pass through both ends of the motor housing 1 and are sealed to it. Several heat dissipation fins 2 are fixedly connected to the outer surface of the motor housing 1. A protective housing 3 is fixedly connected to the outer periphery of the heat dissipation fins 2. A diversion pipe 4 is fixedly sleeved at one end of the protective housing 3. Several nozzles 13 are fixedly installed inside the diversion pipe 4, passing through the protective housing 3 and fixedly sleeved to it. Several air inlets 6 are opened at one end of the protective housing 3.

[0028] In this configuration, the heat transfer between the rotor 22 and the motor housing 1 is accelerated by adding cooling oil (which is non-conductive) inside the motor housing 1. At the same time, the design of the heat exchange channel 25 and the guide plate 24 increases the speed at which the internal cooling oil transfers heat to the heat sink 2, achieving a rapid heat dissipation effect. The rotor 22 rotates counterclockwise. When the rotor rotates, it drives the internal cooling oil to flow synchronously. Through centrifugal force and the effect of the guide plate 24, the cooling oil is introduced into the heat exchange channel 25 and then discharged through the other end of the heat exchange channel 25. This process will fully transfer the heat of the cooling oil to the motor housing 1 and the heat sink 2.

[0029] like Figures 1 to 8As shown, in a specific embodiment, a water tank 7 is fixedly connected to the lower end of the protective shell 3, and a base 8 is fixedly connected to the lower end of the water tank 7. A water inlet 9 is provided on one side of the water tank 7. A fan blade 14 is fixedly installed at the end of the drive shaft 10 near the air inlet. The fan blade 14 corresponds to the opening position of the air inlet 6 and corresponds to one end of the heat sink 2. A pump box 11 is fixedly connected to one end of the air inlet 6 of the protective shell 3. A piston pump 15 is fixedly installed inside the pump box 11. A water inlet check valve 17 is fixedly installed on the side of the piston pump 15. A water inlet pipe 12 is fixedly connected to the outer end of the water inlet check valve 17. The lower end of the water inlet pipe 12 passes through the bottom of the water tank 7 and is fixedly sleeved thereto.

[0030] In this setup, water mist is sprayed onto the heat sink 2 on the surface of the motor housing 1 to cool it down, and then air is cooled by a fan. This increases the efficiency of water mist evaporation on the surface of the heat sink 2. This innovation is because the specific heat capacity of water mist is greater than that of air, thus effectively accelerating the absorption and removal of heat from the surface of the heat sink 2.

[0031] like Figures 1 to 8 As shown, in a specific embodiment, a one-way valve 16 is fixedly installed on the upper end of the piston pump 15, and a water outlet pipe 5 is fixedly connected to the upper end of the one-way valve 16. The other end of the water outlet pipe 5 is fixedly connected to the diversion pipe 4. A piston 21 is sealed inside the piston pump 15. A connecting plate 18 is fixedly connected to the lower end of the piston 21. A rocker arm 19 is movably connected to the lower end of the connecting plate 18. An eccentric disk 20 is movably connected to the lower end of the rocker arm 19. A shaft is fixedly connected to the center of the eccentric disk 20. This shaft passes through the protective shell 3 and is movably sleeved with it. This shaft corresponds to one end of the fan blade 14 of the transmission shaft 10 and is fixedly connected with it.

[0032] In this setup, the simultaneous spraying of water mist can continuously clean the surface of the heat sink 2, preventing dust accumulation on its surface.

[0033] The implementation principle of a high-speed motor based on cooling optimization design in this embodiment is as follows:

[0034] This invention employs a method of spraying water mist onto the heat sink 2 on the surface of the motor housing 1 for cooling, followed by air cooling via a fan. This increases the efficiency of water mist evaporation on the surface of the heat sink 2. The innovation lies in the fact that water mist has a higher specific heat capacity than air, thus effectively accelerating the absorption and removal of heat from the surface of the heat sink 2. Simultaneously, the water mist spraying provides continuous cleaning of the surface of the heat sink 2, preventing dust accumulation. Furthermore, by adding cooling oil (which is non-conductive) inside the motor housing 1, heat transfer between the rotor 22 and the motor housing 1 is accelerated. The design of the heat exchange channel 25 and the guide plate 24 further increases the speed at which the internal cooling oil transfers heat to the heat sink 2, achieving a rapid heat dissipation effect. (Referring to...) Figure 7The rotor 22 rotates counterclockwise. When the rotor rotates, it drives the internal cooling oil to flow synchronously. Through centrifugal force and the effect of the guide plate 24, the cooling oil is introduced into the heat exchange channel 25 and then discharged through the other end of the heat exchange channel 25. This process will fully transfer the heat of the cooling oil to the motor housing 1 and the heat sink 2.

Claims

1. A high-speed motor based on cooling optimization design, comprising a motor housing (1), characterized in that: The motor housing (1) is provided with a heat exchange mechanism, which includes a flow guide plate (24) and a heat exchange channel (25). The heat exchange channel (25) is opened inside the motor housing (1), and both ends of the heat exchange channel (25) are connected to the internal space of the motor housing (1). The flow guide plate (24) is fixedly connected to the inner side of the motor housing (1) and corresponds to the entrance of the heat exchange channel (25). Several strong magnets (23) are fixedly connected to the inner wall of the motor housing (1). A rotor (22) is installed inside the motor housing (1). A drive shaft (10) is fixedly sleeved at the center of the rotor (22). Both ends of the drive shaft (10) pass through both ends of the motor housing (1) and are sealed to it. When the rotor (22) rotates, it drives the internal cooling oil to flow synchronously. Through centrifugal force and the effect of the flow guide plate (24), the cooling oil is introduced into the heat exchange channel (25) and then discharged through the other end of the heat exchange channel (25). The outer surface of the motor housing (1) is fixedly connected with several heat sinks (2), and the outer periphery of the heat sinks (2) is fixedly connected with a protective housing (3). A diversion pipe (4) is fixedly sleeved on one end of the protective housing (3), and several nozzles (13) are fixedly installed on the inner side of the diversion pipe (4). The nozzles (13) penetrate the protective housing (3) and are fixedly sleeved thereon. Several air inlets (6) are opened on one end of the protective housing (3). A fan blade (14) is fixedly installed at one end of the drive shaft (10) near the air inlet. The fan blade (14) corresponds to the opening position of the air inlet (6) and the fan blade (14) corresponds to one end of the heat sink (2). A pump box (11) is fixedly connected to one end of the air inlet (6) of the protective shell (3). A piston pump (15) is fixedly installed inside the pump box (11). A water inlet check valve (17) is fixedly installed on the side of the piston pump (15). A water inlet pipe (12) is fixedly connected to one end of the water inlet check valve (17). The lower end of the water inlet pipe (12) passes through the bottom of the water tank (7) and is fixedly connected to it. The piston pump (15) is fixedly installed with a water outlet check valve (16) at the upper end. The water outlet check valve (16) is fixedly connected to a water outlet pipe (5) at the upper end. The other end of the water outlet pipe (5) is fixedly connected to the diversion pipe (4). The piston pump (15) is internally sealed with a piston (21). The lower end of the piston (21) is fixedly connected to a connecting plate (18), the lower end of the connecting plate (18) is movably connected to a rocker arm (19), the lower end of the rocker arm (19) is movably connected to an eccentric disk (20), the center position of the eccentric disk (20) is fixedly connected to a shaft, the shaft passes through the protective shell (3) and is movably sleeved with it, and this shaft corresponds to one end of the fan blade (14) of the transmission shaft (10) and is fixedly connected with it.

2. The high-speed motor based on cooling optimization design according to claim 1, characterized in that, The lower end of the protective shell (3) is fixedly connected to a water tank (7), the lower end of the water tank (7) is fixedly connected to a base (8), and a water inlet (9) is provided on one side of the water tank (7).

Images