High-speed motor based on cooling optimization design

Abstract

The invention 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 drainage plate and a heat exchange channel, and the heat exchange channel is arranged in the motor shell. The heat exchange channel is arranged in the motor shell, the two ends of the heat exchange channel communicate with the inner space of the motor shell, the drainage plate is fixedly connected to the inner side of the motor shell and corresponds to an inlet of the heat exchange channel, and a plurality of strong magnets are fixedly connected to the inner wall of the motor shell. Water mist cooling is carried out on the motor shell, then the evaporation efficiency is improved through air cooling, the efficiency of absorbing and taking away heat is improved, spraying can clean the surface of the heat dissipation cavity, and dust accumulation is prevented; meanwhile, cooling oil is injected into the motor, heat transfer between the rotor and the motor shell is accelerated, and the speed of transferring heat to the heat dissipation chamber by the cooling oil inside is increased through the design of a heat exchange channel and a drainage plate.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed motor cooling, and in particular relates to a high-speed motor based on cooling optimization design. Background Art

[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 have high operating frequencies and fast speeds, which lead to a significant increase in iron loss, copper loss and mechanical loss, and generate excessive heat. If the heat is not effectively dissipated, the excessive temperature rise of the motor will cause problems such as accelerated insulation aging and permanent magnet demagnetization, seriously affecting the life and performance of the motor. A stable temperature environment can ensure that the electromagnetic parameters and mechanical characteristics of the motor remain constant, avoid output power fluctuations, reduced efficiency, and increased operating vibration and noise caused by overheating, and is conducive to reliable operation in scenarios such as industrial precision drives and electric vehicles.

[0003] Existing high-speed motors generally use a single air cooling method for cooling, using a fan to make air flow through the motor casing and heat sink fins to take away heat. It has a simple structure and low cost, but the heat dissipation efficiency is limited. It is incapable of high-speed motors with harsh working conditions. Increasing air circulation will also increase dust accumulation on the heat sink fins, causing the motor heat to be unable to dissipate. Long-term high temperature conditions will lead to reduced motor service life and performance. At the same time, the heat of the traditional motor rotor can only be transmitted to the motor casing through the internal air for heat dissipation. The efficiency of air transmission is extremely limited. When the motor is running at high power, it is often unable to dissipate heat quickly, resulting in power reduction.

[0004] To this end, the inventor has introduced a high-speed motor based on cooling optimization design to solve the above-mentioned problems and defects. Summary of the invention

[0005] In order to solve the above-mentioned technical problems that the heat dissipation efficiency is limited when cooling by a single air cooling method, the dust accumulation on the heat dissipation fins will increase while increasing the air circulation, resulting in the inability to dissipate the heat of the motor, and the heat of the traditional motor rotor can only be transmitted to the motor housing through the internal air for heat dissipation, and the air transmission efficiency is extremely limited, the basic concept of the technical solution adopted by the present invention is:

[0006] A high-speed motor based on cooling optimization design includes a motor housing, a heat exchange mechanism is arranged inside the motor housing, the heat exchange mechanism includes a guide plate and a heat exchange channel, the heat exchange channel is opened inside the motor housing, and both ends of the heat exchange channel are connected to 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 entrance of the heat exchange channel, and a plurality of strong magnets are fixedly connected to the inner wall of the motor housing, and a rotor is installed inside the motor housing, a transmission shaft is fixedly sleeved at the center position of the rotor, and both ends of the transmission shaft pass through both ends of the motor housing and are sealed and sleeved therewith.

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

[0008] As a preferred embodiment of the present invention, the lower end of the protective shell is fixedly connected to a water tank, the lower end of the water tank is fixedly connected to a base, and a water filling port is opened on one side of the water tank.

[0009] As a preferred embodiment of the present invention, a fan blade is fixedly installed on one end of the transmission shaft close to the air inlet, and the fan blade corresponds to the opening position of the air inlet, and the fan blade corresponds to one end of the heat sink.

[0010] As 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, an outer end of the water inlet check valve is fixedly connected to a water inlet pipe, and the lower end of the water inlet pipe passes through the bottom of the water tank and is fixedly connected thereto.

[0011] As a preferred embodiment of the present invention, a water outlet one-way valve is fixedly installed on the upper end of the piston pump, and a water outlet pipe is fixedly connected to the upper end of the water outlet one-way valve. The other end of the water outlet pipe is fixedly connected to the diversion pipe, and the internal sealing sleeve of the piston pump is connected to the piston.

[0012] As a preferred embodiment of the present invention, the lower end of the piston is fixedly connected to a connecting plate, the lower end of the connecting plate is movably connected to a rocker arm, the lower end of the rocker arm is movably connected to an eccentric disk, the center position of the eccentric disk is fixedly connected to a shaft rod, the shaft rod passes through the protective shell and is movably connected thereto, and the shaft rod corresponds to one end of the fan blade of the transmission shaft and is fixedly connected thereto.

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

[0014] The present invention uses water mist to cool the motor housing and then uses air cooling to increase the evaporation efficiency. Since the specific heat capacity of water mist is greater than that of air, the efficiency of absorbing and taking away heat is effectively accelerated. At the same time, the spray can continuously clean the surface of the heat sink to prevent dust accumulation. Furthermore, the heat transfer between the rotor and the motor housing is accelerated by adding cooling oil inside the motor. At the same time, the speed of the internal cooling oil transferring heat to the heat sink is increased through the design of the heat exchange channel and the guide plate, thereby achieving the effect of extremely fast heat dissipation.

[0015] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In the attached picture:

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

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

[0019] Figure 3 A rear cross-sectional schematic diagram of a high-speed motor based on cooling optimization design;

[0020] Figure 4 This is a disassembled schematic diagram of a spray mechanism for a high-speed motor based on cooling optimization design;

[0021] Figure 5 It is a cross-sectional schematic diagram of a spray mechanism of a high-speed motor based on cooling optimization design;

[0022] Figure 6 A schematic diagram of the installation position of a spray mechanism of a high-speed motor based on cooling optimization design;

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

[0024] Figure 8 A schematic diagram of the housing cross-section of a high-speed motor based on cooling optimization design.

[0025] In the figure: 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 filling port; 10. Drive shaft; 11. Pump box; 12. Water inlet pipe; 13. Nozzle; 14. Fan blades; 15. Piston pump; 16. Water outlet check valve; 17. Water inlet check valve; 18. Connecting plate; 19. Rocker arm; 20. Eccentric disk; 21. Piston; 22. Rotor; 23. Strong magnet; 24. Drain plate; 25. Heat exchange channel. DETAILED DESCRIPTION

[0026] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. 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 arranged inside the motor housing 1, the heat exchange mechanism includes a guide plate 24 and a heat exchange channel 25, the heat exchange channel 25 is opened inside the motor housing 1, and the two ends of the heat exchange channel 25 are connected to 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 entrance of the heat exchange channel 25, and a plurality of strong magnets 23 are fixedly connected to the inner wall of the motor housing 1, and a rotor 22 is installed inside the motor housing 1, a transmission shaft 10 is fixedly sleeved at the center position of the rotor 22, and the two ends of the transmission shaft 10 pass through the two ends of the motor housing 1 and are sealed and sleeved therewith; a plurality of heat sinks 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 sink 2, a shunt pipe 4 is fixedly sleeved on the outer periphery of one end of the protective housing 3, a plurality of nozzles 13 are fixedly installed on the inner side of the shunt pipe 4, the nozzles 13 pass through the protective housing 3 and are fixedly sleeved therewith, and a plurality of air inlets 6 are opened at one end of the protective housing 3.

[0028] In this setting, the heat transfer between the rotor 22 and the motor housing 1 is accelerated by adding cooling oil (cooling oil 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, thereby achieving the effect of extremely fast heat dissipation; the rotor 22 rotates counterclockwise, and when the rotor rotates, it drives the internal cooling oil to flow synchronously. Through the 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, the lower end of the protective shell 3 is fixedly connected to the water tank 7, the lower end of the water tank 7 is fixedly connected to the base 8, and a water filling port 9 is opened on one side of the water tank 7; a fan blade 14 is fixedly installed at the end of the transmission shaft 10 close to 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, and an outer end of the water inlet check valve 17 is fixedly connected to a water inlet pipe 12, and the lower end of the water inlet pipe 12 passes through the bottom of the water tank 7 and is fixedly connected thereto.

[0030] In the present configuration, water mist is sprayed on the heat sink 2 on the surface of the motor housing 1 to cool it down, and then air cooling is performed through a fan to increase the evaporation efficiency of the water mist on the surface of the heat sink 2. This innovation effectively speeds up the efficiency of absorbing and taking away the heat from the surface of the heat sink 2 because the specific heat capacity of water mist is greater than that of air.

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

[0032] In this configuration, spraying water mist simultaneously can continuously clean the surface of the heat sink 2 to prevent dust from accumulating on the surface.

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

[0034] The present invention adopts the method of spraying water mist on the heat sink 2 on the surface of the motor housing 1 to cool it down, and then uses a fan for air cooling to increase the evaporation efficiency of the water mist on the surface of the heat sink 2. This innovation is that because the specific heat capacity of water mist is greater than that of air, it effectively accelerates the efficiency of absorbing and taking away the heat on the surface of the heat sink 2. At the same time, spraying water mist can continuously clean the surface of the heat sink 2 to prevent dust from accumulating on its surface; furthermore, by adding cooling oil (cooling oil is not conductive) inside the motor housing 1, the heat transfer between the rotor 22 and the motor housing 1 is accelerated. At the same time, through the design of the heat exchange channel 25 and the guide plate 24, the speed at which the internal cooling oil transfers heat to the heat sink 2 is increased, thereby achieving the effect of extremely fast heat dissipation; wherein reference Figure 7The rotor 22 rotates counterclockwise. When the rotor rotates, it drives the internal cooling oil to flow synchronously. Through the 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: A heat exchange mechanism is arranged inside the motor housing (1), and the heat exchange mechanism comprises a 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 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). A plurality of 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 transmission shaft (10) is fixedly sleeved at the center of the rotor (22). Both ends of the transmission shaft (10) pass through both ends of the motor housing (1) and are sealed and sleeved therewith.

2. A high-speed motor based on cooling optimization design according to claim 1, characterized in that: The outer surface of the motor housing (1) is fixedly connected to a plurality of heat sinks (2), the outer periphery of the heat sink (2) is fixedly connected to a protective housing (3), one end of the protective housing (3) is fixedly sleeved with a shunt pipe (4), the inner side of the shunt pipe (4) is fixedly mounted with a plurality of nozzles (13), the nozzles (13) penetrate the protective housing (3) and are fixedly sleeved therewith, and one end of the protective housing (3) is provided with a plurality of air inlets (6).

3. A high-speed motor based on cooling optimization design according to claim 2, 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).

4. The high-speed motor based on cooling optimization design according to claim 1 is characterized in that: A fan blade (14) is fixedly mounted on one end of the transmission shaft (10) close to the air inlet, and 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).

5. The high-speed motor based on cooling optimization design according to claim 3 is characterized in that: One end of the air inlet (6) of the protective shell (3) is fixedly connected to a pump box (11), 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), and one end of the outer side of the water inlet check valve (17) is fixedly connected to a water inlet pipe (12), and the lower end of the water inlet pipe (12) passes through the bottom of the water tank (7) and is fixedly connected thereto.

6. A high-speed motor based on cooling optimization design according to claim 5, characterized in that: A water outlet one-way valve (16) is fixedly mounted on the upper end of the piston pump (15), and a water outlet pipe (5) is fixedly connected to the upper end of the water outlet one-way valve (16). The other end of the water outlet pipe (5) is fixedly connected to the diversion pipe (4), and a piston (21) is sealed inside the piston pump (15).

7. A high-speed motor based on cooling optimization design according to claim 6, characterized in that: 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), and the center position of the eccentric disk (20) is fixedly connected to a shaft rod, the shaft rod penetrates the protective housing (3) and is movably sleeved therewith, and the shaft rod corresponds to one end of the fan blade (14) of the transmission shaft (10) and is fixedly connected thereto.

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