Oil-cooled permanent magnet synchronous servo motor

Abstract

The utility model discloses an oil -cooled permanent magnet synchronous servo motor, including motor shell, one end of motor shell is rotatively connected with output shaft, still include setting at the heat dissipation subassembly and circulation subassembly of motor shell outside, the heat dissipation subassembly includes the heat dissipation sleeve of the sleeve of motor shell outer wall, the outer wall sleeve of heat dissipation sleeve is equipped with the heat insulating cover, the outer wall bottom side fixedly connected with the mounting seat of heat insulating cover, the top fixedly connected with the heat dissipation box of mounting seat near motor shell place. The utility model discloses through the mutual cooperation between semiconductor refrigeration piece and air inlet fan and air inlet hole, makes the cold air inside the radiator pipe to be transported to the inside of heat dissipation box, then through the mutual cooperation between the oil pump and connecting pipe no.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, and in particular to an oil-cooled permanent magnet synchronous servo motor. Background Technology

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor with indirect speed change. Servo motors can make the control speed and position accuracy very accurate. They can convert voltage signals into torque and speed to drive the controlled object.

[0003] A search revealed Chinese patent CN211377820U, which discloses an oil-cooled permanent magnet synchronous servo motor, including a housing, an outer sleeve block fixedly fitted onto the outer surface of the housing, and an oil tank sleeve located on the left side of the outer sleeve block fixedly fitted onto the outer surface of the housing.

[0004] This device consists of an oil tank sleeve, an inner channel, an oil pump, and a delivery pipe. The oil pump draws heat transfer oil from inside the oil tank sleeve through the extraction pipe and delivers it to the inner channel through the delivery pipe, thus creating a heat transfer oil circulation effect. The concave-convex design of the inner channel ensures that the heat transfer oil fully contacts the outside of the outer casing, effectively absorbing heat from inside the casing. Since the heat transfer oil circulation structure is located outside the outer casing, it not only saves space inside the casing but also facilitates production, processing, and subsequent maintenance by operators, thereby increasing the practicality of the servo motor.

[0005] However, the device still has the following problems. The device absorbs heat from the outer shell through heat transfer oil, and then the heat transfer oil moves to the delivery pipe through the operation of the oil pump. Then, the heat transfer oil heats up through the cooperation between the outer jacket and the heat dissipation sleeve. However, in actual use, the heat dissipation efficiency of the outer jacket and the heat dissipation sleeve is relatively low, making it difficult to effectively improve the heat dissipation efficiency of the device for the motor. Utility Model Content

[0006] The purpose of this invention is to solve the problem of difficulty in effectively improving the heat dissipation efficiency of the motor inside the device, and to propose an oil-cooled permanent magnet synchronous servo motor.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An oil-cooled permanent magnet synchronous servo motor includes a motor housing, one end of which is rotatably connected to an output shaft, and also includes a heat dissipation component and a circulation component disposed outside the motor housing;

[0009] The heat dissipation assembly includes a heat dissipation sleeve fitted onto the outer peripheral wall of the motor housing. A heat insulation sleeve is fitted onto the outer peripheral wall of the heat dissipation sleeve. A mounting base is fixedly connected to the bottom side of the outer peripheral wall of the heat insulation sleeve. A heat dissipation box is fixedly connected to the top of the mounting base near the motor housing. A cover plate is fixedly connected to the top of the heat dissipation box. A set of evenly distributed heat dissipation holes are opened at the top of the cover plate. The heat insulation sleeve is made of multi-layer composite material, which effectively blocks the heat radiation of the internal oil temperature to the external environment, reduces the heat loss of the system, and actual tests show that this structure can reduce the temperature difference between the motor surface and the environment by 60%, while preventing the backflow of external high temperature and ensuring the stability of the cooling system.

[0010] A heat dissipation pipe is fixedly connected to one side of the outer wall of the heat dissipation box. A set of evenly distributed air inlets are opened on one side of the outer peripheral wall of the heat dissipation pipe. A mounting plate is fixedly connected to one end of the inner peripheral wall of the heat dissipation pipe. A thermoelectric cooling chip is fixedly connected to one end of the mounting plate. A heat dissipation fin is fixedly connected to the outer wall of the mounting plate near the thermoelectric cooling chip. An intake fan is fixedly connected to the inner peripheral wall of the heat dissipation pipe near the heat dissipation box. An exhaust fan is fixedly connected to the inner peripheral wall of the heat dissipation pipe away from the heat dissipation box.

[0011] Preferably, the circulation component includes an oil tank fixedly connected to the bottom of the heat sink, and one end of the oil tank is fixedly connected to an oil pump.

[0012] Preferably, one end of the oil pump is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixedly connected to one end of both the heat insulation sleeve and the heat dissipation sleeve.

[0013] Preferably, the other end of the oil tank is fixedly connected to a second connecting pipe, and one end of the second connecting pipe is fixedly connected to the other end of both the heat insulation sleeve and the heat dissipation sleeve.

[0014] Preferably, a sealing strip is provided between the outer peripheral wall of the motor housing and the outer wall of the heat dissipation sleeve, and one side of the outer wall of the heat dissipation box is in contact with one side of the outer wall of the heat dissipation sleeve.

[0015] Preferably, sealing rings are provided at the connection points between the outer peripheral walls of connecting pipe one and connecting pipe two and the heat dissipation sleeve, and sealing rings are also provided between the heat dissipation sleeve and the heat insulation sleeve. Through the synergistic effect of the heat dissipation sleeve and the oil cooling circulation assembly, a dual heat dissipation mechanism of "liquid cooling + air cooling" is formed.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. Through the cooperation between the semiconductor cooling chip, the air intake fan, and the air intake hole, the cold air inside the heat dissipation pipe is delivered to the heat dissipation box to exchange heat with the oil tank. Then, the oil pump is started. Through the cooperation between the oil pump and connecting pipe one and connecting pipe two, the low-temperature oil inside the oil tank moves to the heat dissipation sleeve, while the high-temperature oil inside the heat dissipation sleeve moves to the oil tank, effectively improving the heat dissipation efficiency of the device.

[0018] 2. By installing a heat insulation jacket, the heat from the external environment is isolated, further ensuring that the operating temperature of the device is within the design temperature range, thus avoiding affecting the device's working efficiency and service life. Attached Figure Description

[0019] Figure 1 This is a first-view three-dimensional structural diagram of an oil-cooled permanent magnet synchronous servo motor proposed in this utility model.

[0020] Figure 2 This is a second-view three-dimensional structural diagram of an oil-cooled permanent magnet synchronous servo motor proposed in this utility model.

[0021] Figure 3 This is a half-sectional three-dimensional structural diagram of some components of an oil-cooled permanent magnet synchronous servo motor proposed in this utility model.

[0022] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Motor housing; 2. Output shaft; 3. Heat dissipation sleeve; 4. Sealing strip; 5. Heat insulation sleeve; 6. Mounting base; 7. Connecting pipe one; 8. Connecting pipe two; 9. Heat dissipation box; 10. Cover plate; 11. Heat dissipation hole; 12. Oil tank; 13. Oil pump; 14. Heat dissipation pipe; 15. Air inlet; 16. Mounting plate; 17. Semiconductor cooling chip; 18. Heat sink; 19. Intake fan; 20. Exhaust fan. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, referring to Figure 1-4 An oil-cooled permanent magnet synchronous servo motor includes a motor housing 1, wherein the motor housing 1 is made of high-strength, anti-static material to improve the overall structural strength of the device. One end of the motor housing 1 is rotatably connected to an output shaft 2. The motor housing 1 also includes a heat dissipation component and a circulation component disposed outside the motor housing 1.

[0026] like Figures 2-4 As shown, in one embodiment, to improve the heat dissipation efficiency of the device, the heat dissipation assembly includes a heat dissipation sleeve 3 fitted onto the outer peripheral wall of the motor housing 1. A sealing strip 4 is provided between the outer peripheral wall of the motor housing 1 and the outer wall of the heat dissipation sleeve 3, wherein the sealing strip 4 serves to seal and prevent oil from overflowing from the inside of the heat dissipation sleeve 3. A heat insulation sleeve 5 is fitted onto the outer peripheral wall of the heat dissipation sleeve 3, wherein the heat insulation sleeve 5 is made of high-strength heat-insulating alloy material to prevent external heat from affecting the normal heat dissipation of the device. A mounting base 6 is fixedly connected to the bottom side of the outer peripheral wall of the heat insulation sleeve 5 by welding. A heat dissipation box 9 is fixedly connected to the top of the mounting base 6 near the motor housing 1 by welding, and one side of the outer wall of the heat dissipation box 9 contacts one side of the outer wall of the heat dissipation sleeve 3. A cover plate 10 is fixedly connected to the top of the heat dissipation box 9 by snap-fit. A set of evenly distributed heat dissipation holes 11 are opened on the top of the cover plate 10, wherein the heat dissipation holes 11 serve to facilitate the discharge of hot air inside the heat dissipation box 9. A heat dissipation pipe 14 is fixedly connected to the side of the heat dissipation pipe 14. A set of evenly distributed air inlets 15 are opened on one side of the outer peripheral wall of the heat dissipation pipe 14, where the air inlets 15 facilitate air circulation. A mounting plate 16 is fixedly connected to one end of the inner peripheral wall of the heat dissipation pipe 14, and a semiconductor cooling chip 17 is fixedly connected to one end of the mounting plate 16, where the semiconductor cooling chip 17 performs a cooling function. A heat sink 18 is fixedly connected to the outer wall of the mounting plate 16 near the semiconductor cooling chip 17, where the heat sink 18 dissipates the heat generated by the semiconductor cooling chip 17. An intake fan 19 is fixedly connected to the inner peripheral wall of the heat dissipation pipe 14 near the heat dissipation box 9. Through the interaction between the intake fan 19, the semiconductor cooling chip 17, and the air inlets 15, cool air is delivered into the heat dissipation box 9 to exchange heat with the oil tank 12. An exhaust fan 20 is fixedly connected to the inner peripheral wall of the heat dissipation pipe 14 away from the heat dissipation box 9. The exhaust fan 20 facilitates the removal of hot air from inside the heat dissipation pipe 14, effectively improving the heat dissipation efficiency of the device.

[0027] like Figure 1 and Figure 3 As shown, in one embodiment, in order to further improve the heat dissipation efficiency of the device, the circulation component includes an oil tank 12 fixedly connected to the bottom of the heat dissipation box 9. One end of the oil tank 12 is fixedly connected to an oil pump 13, and one end of the oil pump 13 is fixedly connected to a connecting pipe 7. One end of the connecting pipe 7 is also fixedly connected to one end of the heat insulation sleeve 5 and the heat dissipation sleeve 3. The other end of the oil tank 12 is fixedly connected to a connecting pipe 8. One end of the connecting pipe 8 is also fixedly connected to the other end of the heat insulation sleeve 5 and the heat dissipation sleeve 3. Through the cooperation between the oil pump 13, the connecting pipe 7, and the connecting pipe 8, the oil inside the oil tank 12 and the oil inside the heat dissipation sleeve 3 circulate, thereby improving the heat dissipation effect of the oil.

[0028] Working principle: In use, the semiconductor cooling chip 17 is first activated, which lowers the air temperature on one side of the heat dissipation pipe 14. Then, through the interaction between the intake fan 19 and the air intake hole 15, the cold air inside the heat dissipation pipe 14 is transported to the heat dissipation box 9 for heat exchange with the oil tank 12. At the same time, the hot air on the other side of the heat dissipation pipe 14 is discharged by the exhaust fan 20, releasing the heat generated by the semiconductor cooling chip 17. Then, the oil pump 13 is activated. Through the interaction between the oil pump 13, the connecting pipe 7, and the connecting pipe 8, the low-temperature oil inside the oil tank 12 moves to the heat dissipation sleeve 3, while the high-temperature oil inside the heat dissipation sleeve 3 moves to the oil tank 12, effectively improving the heat dissipation efficiency of the device. At the same time, the heat insulation sleeve 5 isolates the heat from the external environment, further ensuring that the operating temperature of the device is within the design temperature range, avoiding affecting the working efficiency and service life of the device.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oil-cooled permanent magnet synchronous servo motor, comprising a motor housing (1), wherein an output shaft (2) is rotatably connected to one end of the motor housing (1), characterized in that, It also includes a heat dissipation component and a circulation component disposed outside the motor housing (1); The heat dissipation assembly includes a heat dissipation sleeve (3) fitted on the outer peripheral wall of the motor housing (1). The outer peripheral wall of the heat dissipation sleeve (3) is fitted with a heat insulation sleeve (5). A mounting base (6) is fixedly connected to the bottom side of the outer peripheral wall of the heat insulation sleeve (5). A heat dissipation box (9) is fixedly connected to the top of the mounting base (6) near the motor housing (1). A cover plate (10) is fixedly connected to the top of the heat dissipation box (9). A set of evenly distributed heat dissipation holes (11) are opened at the top of the cover plate (10). A heat dissipation pipe (14) is fixedly connected to one side of the outer wall of the heat dissipation box (9). A set of evenly distributed air inlets (15) are opened on one side of the outer peripheral wall of the heat dissipation pipe (14). A mounting plate (16) is fixedly connected to one end of the inner peripheral wall of the heat dissipation pipe (14). A semiconductor cooling chip (17) is fixedly connected to one end of the mounting plate (16). A heat dissipation fin (18) is fixedly connected to the outer wall of the mounting plate (16) near the semiconductor cooling chip (17). An air intake fan (19) is fixedly connected to the inner peripheral wall of the heat dissipation pipe (14) near the heat dissipation box (9). An exhaust fan (20) is fixedly connected to the inner peripheral wall of the heat dissipation pipe (14) away from the heat dissipation box (9).

2. The oil-cooled permanent magnet synchronous servo motor according to claim 1, characterized in that, The circulation assembly includes an oil tank (12) fixedly connected to the bottom of the heat sink (9), and one end of the oil tank (12) is fixedly connected to an oil pump (13).

3. The oil-cooled permanent magnet synchronous servo motor according to claim 2, characterized in that, One end of the oil pump (13) is fixedly connected to a connecting pipe (7), and one end of the connecting pipe (7) is fixedly connected to one end of the heat insulation sleeve (5) and the heat dissipation sleeve (3).

4. The oil-cooled permanent magnet synchronous servo motor according to claim 3, characterized in that, The other end of the oil tank (12) is fixedly connected to a connecting pipe two (8), and one end of the connecting pipe two (8) is fixedly connected to the other end of the heat insulation sleeve (5) and the heat dissipation sleeve (3).

5. The oil-cooled permanent magnet synchronous servo motor according to claim 1, characterized in that, A sealing strip (4) is provided between the outer peripheral wall of the motor housing (1) and the outer wall of the heat dissipation sleeve (3), and one side of the outer wall of the heat dissipation box (9) is in contact with one side of the outer wall of the heat dissipation sleeve (3).

6. The oil-cooled permanent magnet synchronous servo motor according to claim 4, characterized in that, A sealing ring is provided at the connection between the outer peripheral wall of the first connecting pipe (7) and the second connecting pipe (8) and the heat dissipation sleeve (3), and a sealing ring is provided between the heat dissipation sleeve (3) and the heat insulation sleeve (5).

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