An integrated heat sink motor, reducer, and controller assembly

Abstract

The application discloses an integrated heat dissipation type motor, speed reducer and controller assembly device and relates to the technical field of motors. The integrated heat dissipation type motor, speed reducer and controller assembly device comprises a base, the base is fixedly connected with a controller and a fixed shaft, the fixed shaft is fixedly connected with a stator electrically connected with the controller, the outer side of the stator is provided with a rotor, the fixed shaft is fixedly connected with symmetrically distributed limiting housings, the motor shell located on the outer side of the stator is rotationally connected between the symmetrically distributed limiting housings, the rotor is provided with a speed reduction mechanism, the speed reduction mechanism is used for adjusting the transmission ratio between the rotor and the motor shell, the speed reduction mechanism is located on the upper and lower sides of the rotor, and the motor shell is located on the outer side of the rotor and adjacent to the rotor. The application combines the speed reducer with the motor, the overall volume of the motor is reduced compared to the motor with the speed reducer, the motor shell of the motor is located on the outer side of the rotor and adjacent to the rotor, and the speed reduction is completed without increasing the diameter of the motor shell.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to an integrated heat-dissipating motor, reducer and controller assembly. Background Technology

[0002] Motors can be divided into internal rotor motors and external rotor motors depending on the distribution of the stator and rotor. External rotor motors are widely used in fields such as robots and drones due to their advantages such as high torque, simple maintenance and good heat dissipation.

[0003] Different robots or drones have different requirements for the output speed of external rotor motors. Generally, the output speed of the external rotor motor is adjusted by installing a reducer. Currently, when an external rotor motor needs to be equipped with a reducer, the reducer is directly installed with the external rotor motor. However, installing a reducer increases the size of the external rotor motor. When installed on some drones, the large size of the motor is not conducive to the operation of small drones. If the reducer is placed between the rotor and the motor housing, it will increase the overall diameter of the motor, wasting motor space. Moreover, most current external rotor motors use heat sinks for cooling, relying solely on air cooling. Under high loads, the air cooling speed is slow, which is not conducive to the operation of the motor. Summary of the Invention

[0004] In order to overcome the technical problems described in the background art, the present invention provides an integrated heat dissipation motor, reducer and controller assembly with internal circulation cooling.

[0005] The technical solution of the present invention is: an integrated heat-dissipating motor, reducer and controller assembly, including a base, a controller and a fixed shaft fixedly connected to the base, a stator electrically connected to the controller fixedly connected to the fixed shaft, a rotor disposed on the outside of the stator, and upper and lower symmetrically distributed limiting housings fixedly connected to the fixed shaft. A motor housing located on the outside of the rotor is rotatably connected between the symmetrically distributed limiting housings. The rotor is provided with a reduction mechanism, which is used to adjust the transmission ratio between the rotor and the motor housing. The reduction mechanism is located on the upper and lower sides of the rotor, and the motor housing is located on the outside of the rotor and adjacent to it.

[0006] Preferably, the reduction mechanism includes symmetrically distributed connecting discs, which are respectively fixed to both sides of the rotor. The connecting discs are rotatably connected to the stator and a fixed shaft, respectively. A ring is fixed to each connecting disc via a first connecting block. The limiting housing has a first annular cavity and a second annular cavity, with the second annular cavity located inside the first annular cavity. The limiting housing also has circumferentially spaced cylindrical cavities that connect the first and second annular cavities. A first gear is rotatably connected to the fixed shaft. A second connecting block is fixed between the ring and the first gear. Both the first gear and the second connecting block are located within the second annular cavity. The housing is fixedly connected to circumferentially distributed fixed rods, each of which is rotatably connected to a sleeve. A second gear is fixedly connected to the sleeve, which is located above the second gear. The circumferentially distributed second gears mesh with adjacent first gears. Both the sleeve and the second gear are located within a cylindrical cavity. An internal gear ring is rotatably connected within a first annular cavity. The circumferentially distributed second gears mesh with adjacent internal gear rings. Connecting rings are fixedly connected between the symmetrically distributed internal gear rings and the motor housing. The internal gear rings and connecting rings are located within adjacent first annular cavities. The motor housing is equipped with a circulation component to assist in the flow of lubricating oil. The fixed shaft is equipped with an air-cooling mechanism to reduce the operating temperature of the stator and rotor.

[0007] Preferably, the circulation component includes a first arc-shaped cavity, the motor housing is provided with circumferentially distributed first arc-shaped cavities, the connecting ring is provided with circumferentially distributed L-shaped cavities, the circumferentially distributed L-shaped cavities are respectively connected to adjacent first arc-shaped cavities, the circumferentially distributed L-shaped cavities are respectively connected to adjacent cylindrical cavities, the fixed shaft is provided with symmetrically distributed annular grooves, the symmetrically distributed annular grooves are respectively connected to adjacent second annular cavities, the fixed shaft is provided with circumferentially equally spaced strip grooves, the circumferentially equally spaced strip grooves are all connected to the symmetrically distributed annular grooves, the first arc-shaped cavity, L-shaped cavity, first annular cavity, cylindrical cavity, second annular cavity, annular groove and strip groove are all filled with lubricating oil, and the sleeve is provided with an oil guiding component for driving the flow of lubricating oil.

[0008] Preferably, the sum of the cross-sectional areas of the first arc-shaped cavities distributed circumferentially is greater than the sum of the cross-sectional areas of the equally spaced strip grooves distributed circumferentially, thereby increasing the cooling time of the lubricating oil.

[0009] Preferably, the oil guiding assembly includes drive plates that are circumferentially spaced at equal intervals. The drive plates are fixedly connected to adjacent sleeves. An arc-shaped baffle is fixedly connected inside the cylindrical cavity. The upper and lower symmetrical arc-shaped baffles are distributed in opposite positions in adjacent cylindrical cavities.

[0010] Preferably, the drive plate is provided with an arc-shaped surface for pushing lubricating oil downwards.

[0011] Preferably, the air-cooling mechanism includes circumferentially evenly spaced interceptor plates, all of which are fixed to the motor housing. The motor housing has circumferentially distributed second arc-shaped cavities and circumferentially distributed air inlet slots. The circumferentially distributed interceptor plates are located at the air inlets of adjacent air inlet slots and are aligned with adjacent air inlet slots. The circumferentially distributed air inlet slots are all connected to adjacent second arc-shaped cavities. A limiting housing, motor housing, connecting plate, and fixed shaft on the side away from the base cooperate to form an air intake cavity, which is connected to the circumferentially evenly spaced second arc-shaped cavities. The fixed shaft has circumferentially evenly spaced air inlets and an exhaust cavity, which connects the exhaust cavity to the air intake cavity. A circumferentially distributed exhaust slot is provided on the side of the fixed shaft near the base, and all circumferentially distributed exhaust slots are connected to the exhaust cavity.

[0012] Preferably, the first arc-shaped cavity distributed circumferentially and the second arc-shaped cavity distributed circumferentially are staggered to cool the lubricating oil in the first arc-shaped cavity.

[0013] Preferably, heat sinks with equal spacing are fixed inside the fixed shaft to reduce the temperature of the fixed shaft.

[0014] Preferably, the heat sink is provided with circumferentially spaced ventilation holes to increase the contact area between the heat sink and the air.

[0015] The present invention has the following advantages: By combining the reducer with the motor, the overall volume of the motor is reduced compared to a motor with a reducer. Furthermore, the motor housing of this invention is located outside and adjacent to the rotor, achieving speed reduction without increasing the diameter of the motor housing. For some equipment using external rotor motors, and for equipment that requires a small motor housing diameter, the stator and rotor of the motor are cooled through air cooling and lubricating oil circulation, ensuring the heat dissipation of the motor. Moreover, the air cooling and lubricating oil circulation paths are staggered and form convection, ultimately achieving rapid cooling of the motor to ensure its stable operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional cross-sectional view of the motor housing of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the ring of the present invention.

[0019] Figure 4 This is a three-dimensional cross-sectional view of the fixed shaft structure of the present invention.

[0020] Figure 5This is a three-dimensional cross-sectional view of the limiting shell of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the driver board of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the arc-shaped baffle of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the air intake cavity of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the heat sink of the present invention.

[0025] Figure 10 For the present invention Figure 9 A magnified three-dimensional structural diagram at point A in the middle.

[0026] Figure 11 This is a three-dimensional structural diagram of the second arc-shaped cavity of the present invention.

[0027] The components in the attached diagram are labeled as follows: 1-Base, 2-Controller, 3-Fixed shaft, 301-Exhaust cavity, 302-Annular groove, 303-Strip groove, 304-Air inlet, 305-Exhaust groove, 4-Stator, 5-Rotor, 6-Limiting housing, 601-First annular cavity, 602-Second annular cavity, 603-Cylindrical cavity, 7-Motor housing, 701-First arc-shaped cavity, 702-Second arc-shaped cavity Cavity, 703-Air inlet slot, 801-Connecting plate, 802-First connecting block, 803-Ring, 804-First gear, 805-Second connecting block, 806-Fixing rod, 807-Sleeve, 808-Second gear, 809-Internal gear ring, 810-Connecting ring, 8101-L-shaped cavity, 811-Drive plate, 812-Arc-shaped baffle, 901-Intercepting plate, 902-Air inlet cavity, 903-Heat sink. Detailed Implementation

[0028] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. This motor is an external rotor motor. When wiring the stator, the wire is passed through the exhaust groove into the exhaust cavity. A through hole is opened on the fixed shaft to pass the wire through and connect it to the stator. The through hole wire on the fixed shaft is not shown in the figure.

[0029] An integrated heat-dissipating motor, reducer, and controller assembly, such as Figures 1-3As shown, the device includes a base 1, a controller 2 fixedly connected to the upper surface of the base 1, a fixed shaft 3 fixedly connected to the middle of the base 1, a stator 4 electrically connected to the controller 2 fixedly connected to the outer side of the fixed shaft 3, a rotor 5 disposed on the outer side of the stator 4, two vertically symmetrically distributed limiting housings 6 fixedly connected to the fixed shaft 3, and a motor housing 7 located outside the rotor 5 rotatably connected between the symmetrically distributed limiting housings 6, the rotor 5 is provided with a reduction mechanism, which combines the reducer with the motor, reducing the overall volume of the motor compared to a motor with a reducer. The reduction mechanism is used to adjust the transmission ratio between the rotor 5 and the motor housing 7. The reduction mechanism is located on the upper and lower sides of the rotor 5, and the motor housing 7 is located outside the rotor 5 and adjacent to it, completing the reduction without increasing the diameter of the motor housing 7. This satisfies the requirement for a small diameter of the motor housing 7 for some equipment using an external rotor motor.

[0030] like Figures 2-7As shown, the reduction mechanism includes two symmetrically distributed connecting discs 801, which are fixed to the upper and lower sides of the rotor 5 respectively. The connecting discs 801 are rotatably connected to the stator 4 and the fixed shaft 3 respectively. A ring 803 is welded to the side of the connecting disc 801 away from the stator 4 via a first connecting block 802. The limiting housing 6 is provided with a first annular cavity 601 and a second annular cavity 602, with the second annular cavity 602 located inside the first annular cavity 601. The limiting housing 6 is provided with three circumferentially equally spaced cylindrical cavities 603. Distributed cylindrical cavities 603 connect the first annular cavity 601 and the second annular cavity 602. A fixed shaft 3 is rotatably connected to a first gear 804. A second connecting block 805 is welded between the annular 803 and the first gear 804. Both the first gear 804 and the second connecting block 805 are located within the second annular cavity 602. A limiting housing 6 is welded with circumferentially distributed fixing rods 806. Each circumferentially distributed fixing rod 806 is rotatably connected to a sleeve 807. A second gear 808 is welded to the lower end of the sleeve 807. The sleeve 807 is located above the second gear 808. The three second gears 808 of the cloth mesh with the adjacent first gear 804. The sleeve 807 and the second gears 808 are both located in the cylindrical cavity 603. An internal gear ring 809 is rotatably connected in the first annular cavity 601. The three circumferentially distributed second gears 808 mesh with the adjacent internal gear ring 809. The symmetrically distributed internal gear rings 809 are all fixedly connected to the motor housing 7 with connecting rings 810. The internal gear rings 809 and the connecting rings 810 are both located in the adjacent first annular cavities 601. The connecting disc 801 drives the first gear through the first connecting block 802 and the ring 803. When gear 804 rotates, the first gear 804 rotates, driving the three second gears 808 to rotate clockwise. The three second gears 808 drive the drive plate 811 to rotate clockwise through the sleeve 807. The three second gears 808 drive the internal gear ring 809 to rotate clockwise. The upper and lower internal gear rings 809 drive the motor housing 7 to rotate, thus completing the motor drive. The three second gears 808 form planetary gears to reduce the speed of the motor housing 7. The motor housing 7 is equipped with a circulation component to assist the flow of lubricating oil. The fixed shaft 3 is equipped with an air-cooling mechanism to reduce the working temperature of the stator 4 and rotor 5.

[0031] like Figure 8As shown, the circulation component includes a first arc-shaped cavity 701. The motor housing 7 is provided with circumferentially distributed first arc-shaped cavities 701. The connecting ring 810 is provided with circumferentially distributed L-shaped cavities 8101. The circumferentially distributed L-shaped cavities 8101 are respectively connected to adjacent first arc-shaped cavities 701 and adjacent cylindrical cavities 603. The fixed shaft 3 is provided with two vertically symmetrically distributed annular grooves 302. The symmetrically distributed annular grooves 302 are respectively connected to adjacent second annular cavities 602. The fixed shaft 3 is provided with circumferentially equally spaced strip grooves 303, which connect the two annular grooves 302. The first arc-shaped cavity 701, the L-shaped cavity 8101, and the first annular cavity 602 are connected. The cavity 601, cylindrical cavity 603, second annular cavity 602, annular groove 302, and strip groove 303 are all filled with lubricating oil to lubricate the meshing points of the first gear 804 and the second gear 808, and the meshing points of the second gear 808 and the internal gear ring 809, thereby reducing wear between the gears. The sum of the cross-sectional areas of the circumferentially distributed first arc-shaped cavities 701 is greater than the sum of the cross-sectional areas of the circumferentially evenly distributed strip grooves 303, so that the lubricating oil stays in the first arc-shaped cavity 701 for a longer time than it stays in the strip grooves 303. This allows the lubricating oil temperature in the first arc-shaped cavity 701 to drop to near room temperature before circulating again, thus reducing the temperature of the lubricating oil entering the strip grooves 303. The sleeve 807 is provided with an oil guiding component for driving the flow of lubricating oil.

[0032] like Figures 4-7 As shown, the oil guiding assembly includes circumferentially equally spaced drive plates 811, which are welded to adjacent sleeves 807. The drive plates 811 are provided with arc-shaped surfaces, and arc-shaped baffles 812 are fixedly connected in cylindrical cavities 603. The upper and lower symmetrical arc-shaped baffles 812 are distributed in opposite positions in adjacent cylindrical cavities 603, so that the drive plates 811 push part of the lubricating oil to one side of the second gear 808, increasing the fluidity of the lubricating oil near the second gear 808, so that the lubricating oil continuously cools and lubricates the meshing points of the first gear 804 and the second gear 808, and the meshing points of the second gear 808 and the internal gear ring 809.

[0033] like Figure 1 and Figures 8-11As shown, the air-cooling mechanism includes circumferentially spaced interceptor plates 901, all welded to the motor housing 7. The motor housing 7 has three circumferentially distributed second arc-shaped cavities 702. The circumferentially distributed first arc-shaped cavities 701 and the circumferentially distributed second arc-shaped cavities 702 are staggered, allowing the air in the second arc-shaped cavities 702 to exchange heat with the lubricating oil in the adjacent first arc-shaped cavities 701, thereby reducing the temperature of the lubricating oil in the first arc-shaped cavities 701 and facilitating subsequent lubricating oil circulation. The motor housing 7 has circumferentially distributed air inlet slots 703, with the circumferentially distributed interceptor plates 901 located at the air inlets of adjacent air inlet slots 703. The circumferentially distributed air inlet slots 703 are all connected to the adjacent second arc-shaped cavities 702. The motor housing 7 drives the interceptor plates 901 to rotate clockwise, and the interceptor plates 901 draw some air from the vicinity of the motor housing 7 through the air inlet slots 703. The air is introduced into the second arc-shaped cavity 702 to cool the inside of the motor housing 7. The upper limiting housing 6, the motor housing 7, the upper limiting housing 6, the connecting plate 801, and the fixed shaft 3 cooperate to form an air intake cavity 902. The air intake cavity 902 communicates with the second arc-shaped cavities 702 that are evenly distributed around the circumference. The upper part of the fixed shaft 3 is provided with air intake holes 304 that are evenly distributed around the circumference. The fixed shaft 3 is provided with an exhaust cavity 301 that is evenly distributed around the circumference. The air inlet 304 connects the exhaust cavity 301 with the air inlet cavity 902. The air entering the second arc-shaped cavity 702 is transported upward to the air inlet cavity 902 and enters the exhaust cavity 301 through the air inlet 304 to air-cool the fixed shaft 3 and accelerate the air flow speed in the exhaust cavity 301. The fixed shaft 3 is provided with circumferentially distributed exhaust grooves 305 on the side near the base 1, and all the circumferentially distributed exhaust grooves 305 are connected to the exhaust cavity 301.

[0034] like Figures 8-11 As shown, heat sinks 903 with equal spacing are welded inside the fixed shaft 3. The heat sinks 903 are provided with heat dissipation holes with equal spacing in the circumferential direction to increase the contact area between the heat sinks 903 and the air, thereby cooling the stator 4 and the rotor 5.

[0035] When this motor is in operation, the operator starts the stator 4 via the controller 2. The rotor 5 rotates counterclockwise around the stator 4. The rotor 5 drives the two connecting discs 801 to rotate counterclockwise. Taking the lower connecting disc 801 as an example, the connecting disc 801 drives the first gear 804 to rotate via the first connecting block 802 and the ring 803. The rotation of the first gear 804 drives the three second gears 808 to rotate clockwise. The three second gears 808 drive the drive plate 811 to rotate clockwise via the sleeve 807. The three second gears 808 drive the internal gear ring 809 to rotate clockwise. The upper and lower internal gear rings 809 drive the motor housing 7 to rotate. The motor drive is completed. The three second gears 808 form planetary gears to reduce the speed of the motor housing 7. By combining the reducer with the motor, the overall size of the motor is reduced compared to a motor with a reducer. Furthermore, the motor housing 7 of this motor is located outside and adjacent to the rotor 5, achieving speed reduction without increasing the diameter of the motor housing 7. For some equipment using an external rotor 5 motor, and for equipment that requires a small diameter for the motor housing 7, during the operation of this motor, the lubricating oil filled in the first arc-shaped cavity 701, L-shaped cavity 8101, first annular cavity 601, cylindrical cavity 603, second annular cavity 602, annular groove 302, and strip through groove 303 lubricates the meshing points of the first gear 804 and the second gear 808, and the meshing points of the second gear 808 and the internal gear ring 809, reducing wear between gears. Since the fixed shaft 3 is provided with an exhaust cavity 301, which is a hollow sleeve, and the fixed shaft 3 is fixed with equally spaced heat sinks 903, which are provided with circumferentially equally spaced heat dissipation holes, the heat generated by the rotor 5 and stator 4 during operation is transferred to the heat sinks 903 through the fixed shaft 3, so that part of the heat of this motor is released through the heat sinks 903, increasing the contact area between the fixed shaft 3 and the air, and cooling the stator 4 and rotor 5.

[0036] During the clockwise rotation of the drive plate 811 driven by the sleeve 807, Figure 8 As shown, taking the lower sleeve 807 as an example, due to the interception of the arc-shaped baffle 812, the drive plate 811 pushes the lubricating oil in front of the arc-shaped baffle 812. The lubricating oil is transported from the first annular cavity 601 through the cylindrical cavity 603 into the second annular cavity 602, as shown. Figure 9 As shown, since the upper and lower symmetrical arc-shaped baffles 812 are distributed in opposite positions in the adjacent cylindrical cavities 603, during the clockwise rotation of the drive plate 811 driven by the upper sleeve 807, the interception of the arc-shaped baffles 812 causes the drive plate 811 to push the lubricating oil in front of the arc-shaped baffles 812. The lubricating oil is transported from the second annular cavity 602 through the cylindrical cavity 603 to the first annular cavity 601, and the upper and lower lubricating oil flows in opposite directions.

[0037] The lubricating oil on the lower side flows upward along the strip-shaped groove 303 through the second annular cavity 602 and the annular groove 302. Since the stator 4 is located outside the fixed shaft 3 and the strip-shaped groove 303 is located inside the fixed shaft 3, during the upward transport of the lubricating oil in the strip-shaped groove 303, the lubricating oil exchanges heat with the stator 4 and rotor 5 through the fixed shaft 3, absorbing the heat generated during the operation of the stator 4 and rotor 5. The lubricating oil that has completed the heat exchange continues to be transported upward along the strip-shaped groove 303, enters the upper second annular cavity 602 through the upper annular groove 302, and then... The cylindrical cavity 603 and the first annular cavity 601 enter the upper side of the first arc-shaped cavity 701. The lubricating oil in the first arc-shaped cavity 701 and part of the heat from the rotor 5 are transferred to the motor housing 7. The motor housing 7 is in direct contact with the air, which is conducive to cooling. After being cooled in the first arc-shaped cavity 701, the lubricating oil enters the lower first annular cavity 601 through the L-shaped cavity 8101. The rotation of the drive plate 811 causes the lubricating oil to circulate around the stator 4 and the rotor 5, absorbing and cooling the heat generated by the stator 4 and the rotor 5, thus ensuring the stable operation of the motor.

[0038] During the rotation of the drive plate 811, since the surface of the drive plate 811 that is impacted by the lubricating oil is arc-shaped, the drive plate 811 pushes some of the lubricating oil toward the second gear 808, which increases the fluidity of the lubricating oil near the second gear 808. This allows the lubricating oil to continuously cool and lubricate the meshing points of the first gear 804 and the second gear 808, as well as the meshing points of the second gear 808 and the internal gear ring 809.

[0039] During the clockwise rotation of the motor housing 7, the motor housing 7 drives the interceptor plate 901 to rotate clockwise. Due to the rotation of the motor housing 7, some air is intercepted by the interceptor plate 901. The intercepted air is introduced into the second arc-shaped cavity 702 through the air inlet slot 703 to cool the inside of the motor housing 7. The air entering the second arc-shaped cavity 702 is transported upward to the air inlet cavity 902, enters the exhaust cavity 301 through the air inlet hole 304, and is then discharged through the exhaust slot 305.

[0040] During the upward transport of air within the second arc-shaped cavity 702, the circumferentially distributed first arc-shaped cavities 701 and second arc-shaped cavities 702 are staggered, allowing the air within the second arc-shaped cavity 702 to exchange heat with the lubricating oil within the adjacent first arc-shaped cavity 701. This reduces the temperature of the lubricating oil within the first arc-shaped cavity 701, facilitating subsequent lubricating oil circulation. Furthermore, the air flow direction within the second arc-shaped cavity 702 is upward, while the lubricating oil flow direction within the first arc-shaped cavity 701 is downward, resulting in opposite flow directions. This increases the time available for heat exchange between the lubricating oil and air within the same timeframe, thereby improving the cooling effect on the lubricating oil.

[0041] As air flows downward in the exhaust cavity 301, it pushes the hot air near the heat sink 903 downward and out of the exhaust groove 305, increasing the airflow velocity on the inner wall of the fixed shaft 3 and near the heat sink 903, thus cooling the inner wall of the fixed shaft 3 and the heat sink 903. Meanwhile, the air in the exhaust cavity 301 flows downward, while the lubricating oil in the strip groove 303 flows upward. The two flow in opposite directions, forming convection, which increases the time for heat exchange between the lubricating oil in the strip groove 303 and the air, accelerating the cooling of the motor.

[0042] Since the air first exchanges heat with the lubricant in the first arc-shaped cavity 701, the temperature of the lubricating oil in the first arc-shaped cavity 701 is lower than the temperature of the lubricating oil in the strip-shaped groove 303. Because the sum of the cross-sectional areas of the circumferentially distributed first arc-shaped cavities 701 is greater than the sum of the cross-sectional areas of the circumferentially equally spaced strip-shaped grooves 303, the lubricating oil stays in the first arc-shaped cavity 701 for a longer time than it stays in the strip-shaped grooves 303. As a result, when the temperature of the lubricating oil in the first arc-shaped cavity 701 drops to near room temperature, it is circulated again to lower the temperature of the lubricating oil entering the strip-shaped groove 303.

[0043] In summary, by circulating air and lubricating oil, the stator 4 and rotor 5 of the motor are cooled, ensuring the heat dissipation of the motor. Furthermore, the staggered distribution of the air cooling and lubricating oil circulation paths creates convection, ultimately achieving rapid cooling of the motor to ensure its stable operation.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An integrated heat-dissipating motor, reducer, and controller assembly, characterized in that: It includes a base (1), a controller (2) and a fixed shaft (3) are fixedly connected to the base (1), a stator (4) electrically connected to the controller (2) is fixedly connected to the fixed shaft (3), a rotor (5) is provided on the outside of the stator (4), a limiting housing (6) symmetrically distributed on the upper and lower sides is fixedly connected to the fixed shaft (3), a motor housing (7) located on the outside of the rotor (5) is rotatably connected between the symmetrically distributed limiting housings (6), and a speed reduction mechanism is provided on the rotor (5). The speed reduction mechanism is used to adjust the transmission ratio between the rotor (5) and the motor housing (7). The speed reduction mechanism is located on the upper and lower sides of the rotor (5), and the motor housing (7) is located on the outside of the rotor (5) and adjacent to it. The reduction mechanism includes symmetrically distributed connecting discs (801), which are fixedly connected to both sides of the rotor (5). The connecting discs (801) are rotatably connected to the stator (4) and the fixed shaft (3), respectively. A ring (803) is fixedly connected to the connecting discs (801) through the first connecting block (802). The limiting housing (6) is provided with a first annular cavity (601) and a second annular cavity (602). The second annular cavity (602) is located inside the first annular cavity (601). On the side, the limiting housing (6) is provided with cylindrical cavities (603) evenly distributed in the circumferential direction. The cylindrical cavities (603) evenly distributed in the circumferential direction connect the first annular cavity (601) and the second annular cavity (602). The fixed shaft (3) is rotatably connected to the first gear (804). The second connecting block (805) is fixed between the annular cavity (803) and the first gear (804). The first gear (804) and the second connecting block (805) are both located in the second annular cavity (602). (6) A circumferentially distributed fixed rod (806) is fixedly connected, and each circumferentially distributed fixed rod (806) is rotatably connected to a sleeve (807). A second gear (808) is fixedly connected to the sleeve (807). The sleeve (807) is located on the upper side of the second gear (808). The circumferentially distributed second gears (808) mesh with the adjacent first gears (804). The sleeve (807) and the second gear (808) are both located in the cylindrical cavity (603). A first annular cavity (601) is rotatably connected to... The internal gear ring (809) and the circumferentially distributed second gear (808) mesh with the adjacent internal gear ring (809). The symmetrically distributed internal gear ring (809) and the motor housing (7) are all fixedly connected with a connecting ring (810). The internal gear ring (809) and the connecting ring (810) are both located in the adjacent first annular cavity (601). The motor housing (7) is provided with a circulation component to assist the flow of lubricating oil. The fixed shaft (3) is provided with an air-cooling mechanism to reduce the working temperature of the stator (4) and the rotor (5). The circulation component includes a first arc-shaped cavity (701), a motor housing (7) is provided with a circumferentially distributed first arc-shaped cavity (701), a connecting ring (810) is provided with a circumferentially distributed L-shaped cavity (8101), the circumferentially distributed L-shaped cavities (8101) are respectively connected to adjacent first arc-shaped cavities (701), the circumferentially distributed L-shaped cavities (8101) are respectively connected to adjacent cylindrical cavities (603), and the fixed shaft (3) is provided with symmetrically distributed annular grooves (302), the symmetrically distributed annular grooves (302) are respectively connected to adjacent first arc-shaped cavities (701). The two annular cavities (602) are connected, and the fixed shaft (3) is provided with circumferentially equally spaced strip grooves (303). The circumferentially equally spaced strip grooves (303) are all connected with symmetrically distributed annular grooves (302). The first arc-shaped cavity (701), L-shaped cavity (8101), first annular cavity (601), cylindrical cavity (603), second annular cavity (602), annular groove (302) and strip grooves (303) are all filled with lubricating oil. The sleeve (807) is provided with an oil guide assembly for driving the flow of lubricating oil.

2. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 1, characterized in that: The sum of the cross-sectional areas of the first arc-shaped cavity (701) distributed in the circumferential direction is greater than the sum of the cross-sectional areas of the strip grooves (303) distributed in the circumferential direction at equal intervals, which increases the cooling time of the lubricating oil.

3. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 2, characterized in that: The oil guiding assembly includes drive plates (811) distributed circumferentially at equal intervals. The drive plates (811) are fixed to adjacent sleeves (807) respectively. An arc-shaped baffle (812) is fixed in the cylindrical cavity (603). The upper and lower symmetrical arc-shaped baffles (812) are distributed in opposite positions in adjacent cylindrical cavities (603).

4. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 3, characterized in that: The drive plate (811) is provided with an arc-shaped surface for pushing lubricating oil downward.

5. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 4, characterized in that: The air-cooling mechanism includes circumferentially spaced interceptor plates (901), all of which are fixed to the motor housing (7). The motor housing (7) has circumferentially distributed second arc-shaped cavities (702) and circumferentially distributed air inlet slots (703). The circumferentially distributed interceptor plates (901) are located at the air inlets of adjacent air inlet slots (703), and the circumferentially distributed air inlet slots (703) are all connected to the adjacent second arc-shaped cavities (702). The limiting housing (6) on the side away from the base (1), the motor housing (7), and the side away from the base (1) are... The connecting plate (801) and the fixed shaft (3) cooperate to form an air intake cavity (902). The air intake cavity (902) is connected to the second arc-shaped cavity (702) which is distributed circumferentially at equal intervals. The fixed shaft (3) is provided with air intake holes (304) distributed circumferentially at equal intervals. The fixed shaft (3) is provided with an exhaust cavity (301). The air intake holes (304) distributed circumferentially at equal intervals connect the exhaust cavity (301) and the air intake cavity (902). The fixed shaft (3) is provided with an exhaust groove (305) distributed circumferentially on the side near the base (1). The exhaust grooves (305) distributed circumferentially are all connected to the exhaust cavity (301).

6. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 5, characterized in that: The first arc-shaped cavity (701) and the second arc-shaped cavity (702) distributed in a circumferential direction are staggered and used to cool the lubricating oil in the first arc-shaped cavity (701).

7. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 6, characterized in that: The fixed shaft (3) is fixed with heat sinks (903) that are evenly spaced to reduce the temperature of the fixed shaft (3).

8. The integrated heat-dissipating motor, reducer, and controller assembly as described in claim 7, characterized in that: The heat sink (903) is provided with circumferentially spaced heat dissipation holes to increase the contact area between the heat sink (903) and the air.

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