High-efficiency heat dissipation air duct of rotor assembly

Abstract

The utility model relates to the field of rotor heat dissipation, and discloses a rotor assembly high-efficiency heat dissipation air duct, which comprises a motor shell, a rotor is arranged in the motor shell, a rotating shaft is arranged at the center in the motor shell, an air inlet cover is fixedly connected to the outer wall of the front end of the motor shell, and a ventilation plate is fixedly connected to the inner wall of the air inlet cover. The ventilation plate is provided with an air guide plate, an inner cavity is formed in the motor shell, the air inlet cover is fixedly communicated with the inner cavity, and the motor shell is provided with an adjusting assembly for adjusting the angle of the air guide plate. The angle of the air guide plate can be adjusted according to the operation condition of the motor, cold air is ensured to be accurately blown to the heating part of the rotor, heat can be taken away in time, the performance of the motor is ensured, the angle adjustment of the air guide plate can adapt to different heat dissipation requirements, the heat dissipation accuracy is improved, and the air flow generated by the fan blades is guided by the air guide plate. A heating area of the rotor can be covered more effectively, and accurate heat dissipation is realized.

Description

Technical Field

[0001] This utility model relates to the field of rotor heat dissipation, specifically to a high-efficiency heat dissipation air duct for rotor components. Background Technology

[0002] When equipment such as motors is running, the rotor assembly generates a large amount of heat, and an efficient heat dissipation duct is a key component to ensure its stable operation. The duct introduces cool air to remove heat and maintain the normal temperature of the rotor assembly.

[0003] Application No. 202420092144.3 discloses a hybrid stepper motor. Hybrid stepper motors have the advantages of simple structure, low manufacturing cost, and convenient control, and are widely used in robotics, automation equipment, and medical equipment. However, hybrid stepper motors generate heat during long-term operation. Because the structure of a hybrid stepper motor connects the two ends of the stator through front and rear covers, and the stator itself is composed of multiple stator laminations, heat dissipation is limited to the connections between the front and rear covers and the stator, and the connection where the rotor passes through the front cover. This results in poor heat dissipation. Adding heat dissipation slots or holes to the outside of the motor to improve heat dissipation can easily draw dust and / or water into the motor during use, affecting its normal operation and lifespan.

[0004] When the above device is in use, cold air from the outside will enter the motor through the heat sink, but the airflow direction cannot be adjusted, and the cold air cannot fully contact the heat-generating parts of the rotor, resulting in low heat dissipation efficiency. This causes the rotor temperature to rise continuously, which not only affects the motor performance but may also shorten the motor life. To address this, we propose a high-efficiency heat dissipation air duct for the rotor assembly. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a high-efficiency heat dissipation air duct for rotor components. This solves the problem that when the above-mentioned devices are in use, external cold air enters the motor through the heat sink, but the airflow direction cannot be adjusted, and the cold air cannot fully contact the heat-generating parts of the rotor, resulting in low heat dissipation efficiency. This causes the rotor temperature to rise continuously, which not only affects the motor performance but may also shorten the motor's lifespan.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation air duct for a rotor assembly, including a motor housing, a rotor disposed inside the motor housing, a rotating shaft disposed at the center of the motor housing, an air inlet shroud fixedly connected to the outer wall of the front end of the motor housing, a first filter screen fixedly connected to the outer wall of the air inlet shroud, a ventilation plate fixedly connected to the inner wall of the air inlet shroud, a guide plate disposed on the ventilation plate, an inner cavity disposed inside the motor housing, the air inlet shroud being fixedly connected to the inner cavity, and an adjustment component for adjusting the angle of the guide plate disposed on the motor housing.

[0009] Preferably, the adjustment assembly includes a through hole, a rotating rod, a turntable, bolt holes, and a second bolt. The through hole is formed on the ventilation plate. The rotating rod is rotatably connected to the inner wall of the through hole. One end of the rotating rod passes through the motor housing and extends to the outside of the motor housing. The air guide plate is fixedly sleeved on the outer wall of the rotating rod and matches the through hole. The turntable is fixedly sleeved on the end of the rotating rod away from the air guide plate and located outside the motor housing. The bolt holes are formed on the outer wall of the turntable and are circumferentially distributed. The second bolt passes through the turntable and is installed on the outer wall of the motor housing.

[0010] Preferably, the air guide plate matches the through hole.

[0011] Preferably, a plurality of fan blades are fixedly sleeved on the outer wall of the rotating shaft, and the fan blades are located inside the air inlet cover.

[0012] Preferably, the heat sink is fixedly connected to the inner wall of the motor housing, and the heat sink is circumferentially distributed on the inner wall of the motor housing.

[0013] Preferably, the diameter of the air inlet shroud is larger than the front end of the motor housing, and the outer wall of the air inlet shroud has an external through hole.

[0014] Preferably, a second filter screen is provided at the rear end of the motor housing, and a first bolt is provided between the second filter screen and the outer wall of the motor housing.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a high-efficiency heat dissipation air duct for rotor assembly, which has the following beneficial effects:

[0017] 1. This rotor assembly features a highly efficient heat dissipation airflow. When the guide vane angle needs adjustment, the turntable is rotated, which in turn drives the rotating rod to rotate. The rotation of the rod causes the guide vane to rotate within the through hole. When the guide vane is adjusted to the appropriate angle, a second bolt is passed through the turntable and connected to the motor housing. This method fixes the angle of the guide vane, ensuring that it can continuously and effectively guide airflow. The guide vane can adjust its angle according to the motor's operating conditions, ensuring that cool air is accurately blown onto the rotor's heating parts. This allows heat to be carried away in a timely manner, protecting motor performance. The angle adjustment of the guide vane can adapt to different heat dissipation needs, improving the precision of heat dissipation. Under the guidance of the guide vane, the airflow generated by the fan blades can more effectively cover the rotor's heating area, achieving precise heat dissipation.

[0018] 2. The rotor assembly features a high-efficiency heat dissipation airflow. Part of the airflow generated by the fan blades blows towards the heat sink, carrying away the heat absorbed by the heat sink. This heat is blown towards the rear end of the motor housing and discharged through the second filter. The other part of the airflow blows directly towards the rotor, carrying away the heat generated on the rotor surface. It is also discharged through the second filter. The airflow generated by the fan blades is also discharged through the external opening, blowing away the heat absorbed by the heat sink onto the outer wall of the motor, further enhancing the heat dissipation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 5 for Figure 2 A magnified view of part A in the diagram.

[0024] In the diagram: 1. Motor housing; 2. First filter screen; 3. Shaft; 4. External through hole; 5. Air inlet shroud; 6. Rotor; 7. Ventilation plate; 71. Through hole; 72. Inner cavity; 8. Air guide plate; 9. Heat sink; 10. Second filter screen; 11. First bolt; 12. Rotating rod; 13. Turntable; 14. Bolt hole; 15. Second bolt; 51. Fan blade. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 A high-efficiency heat dissipation air duct for a rotor assembly includes a motor housing 1, a rotor 6 inside the motor housing 1, a rotating shaft 3 at the center of the motor housing 1, an air inlet shroud 5 fixedly connected to the outer wall of the front end of the motor housing 1, a first filter screen 2 fixedly connected to the outer wall of the air inlet shroud 5, a ventilation plate 7 fixedly connected to the inner wall of the air inlet shroud 5, an air guide plate 8 provided on the ventilation plate 7, an inner cavity 72 inside the motor housing 1, the air inlet shroud 5 being fixedly connected to the inner cavity 72, and an adjustment component on the motor housing 1 for adjusting the angle of the air guide plate 8; during operation, the motor housing 1... The rotating shaft 3 starts to rotate, and the rotation of the rotating shaft 3 drives the fan blade 51 to rotate. The fan blade 51 draws air from the first filter screen 2 into the air inlet hood 5. The air passes through the through hole 71 on the ventilation plate 7 and enters the inner cavity 72. The air guide plate 8 on the ventilation plate 7 guides the airflow. The rotation of the fan blade 51 causes the air to form a certain airflow in the air inlet hood 5. The shape and position design of the fan blade 51 can effectively guide the air into the air inlet hood 5. The first filter screen 2 plays a filtering role to prevent external dust and other impurities from entering the air inlet hood 5 and ensure that the air entering the air duct is clean.

[0027] The adjustment assembly includes a through hole 71, a rotating rod 12, a turntable 13, bolt holes 14, and a second bolt 15. The through hole 71 is formed on the ventilation plate 7. The rotating rod 12 is rotatably connected to the inner wall of the through hole 71. One end of the rotating rod 12 passes through the motor housing 1 and extends to the outside of the motor housing 1. The air guide plate 8 is fixedly sleeved on the outer wall of the rotating rod 12 and matches the through hole 71. The turntable 13 is fixedly sleeved on the end of the rotating rod 12 away from the air guide plate 8 and located outside the motor housing 1. The bolt holes 14 are formed on the outer wall of the turntable 13 and are distributed circumferentially. The second bolt 15 passes through the turntable 13 and is installed on the outer wall of the motor housing 1. When it is necessary to adjust the angle of the air guide plate 8, the turntable 13 is rotated, and the turntable 13 drives the rotating rod 12 to rotate. The rotation of the rotating rod 12 causes the air guide plate 8 to rotate within the through hole 71. When the air guide plate 8 is adjusted to the appropriate angle, the second bolt 15 is passed through the turntable 13 and connected to the motor housing 1. In this way, the angle of the air guide plate 8 is fixed to ensure that the air guide plate 8 can continuously and effectively guide the airflow.

[0028] The air guide plate 8 matches the through hole 71; when the angle of the air guide plate 8 needs to be adjusted, the turntable 13 is rotated. The turntable 13 drives the rotating rod 12 to rotate. The rotation of the rotating rod 12 causes the air guide plate 8 to rotate within the through hole 71; when the air guide plate 8 is adjusted to a suitable angle, the second bolt 15 is passed through the turntable 13 and connected to the motor housing 1. In this way, the angle of the air guide plate 8 is fixed to ensure that the air guide plate 8 can continuously and effectively guide the airflow.

[0029] Several fan blades 51 are fixedly sleeved on the outer wall of the rotating shaft 3, and the fan blades 51 are located inside the air inlet cover 5. When the motor housing 1 is running, the rotating shaft 3 starts to rotate, and the rotation of the rotating shaft 3 drives the fan blades 51 to rotate. The fan blades 51 draw air from the first filter screen 2 into the air inlet cover 5.

[0030] The heat sink 9 is fixedly connected to the inner wall of the motor housing 1. The heat sink 9 is distributed circumferentially on the inner wall of the motor housing 1. The diameter of the air inlet shroud 5 is larger than the front end of the motor housing 1. The outer wall of the air inlet shroud 5 has an external through hole 4. The heat sink 9 is fixedly connected to the inner wall of the motor housing 1 and is distributed circumferentially on the inner wall of the motor housing 1. The heat sink 9 absorbs the heat generated by the rotor 6. Part of the airflow generated by the fan blade 51 blows towards the heat sink 9, carrying away the heat absorbed by the heat sink 9. This part of the heat is blown towards the rear end of the motor housing 1 and discharged from the second filter screen 10. The other part of the airflow blows directly towards the rotor 6, carrying away the heat generated on the surface of the rotor 6. It is also discharged from the second filter screen 10. The wind generated by the fan blade 5 is also discharged from the external through hole 4, blowing away the heat absorbed by the heat sink 9 to the outer wall of the motor, further enhancing the heat dissipation effect.

[0031] A second filter screen 10 is provided at the rear end of the motor housing 1, and a first bolt 11 is provided between the second filter screen 10 and the outer wall of the motor housing 1; the second filter screen 10 is installed at the rear end of the motor housing 1 using the first bolt 11, which facilitates the disassembly of the second filter screen 10.

[0032] Structural Description: Motor Housing 1: This is the main structure of the entire motor, providing protection and support for the internal components. It houses components such as the rotor 6 and shaft 3, and also serves as the mounting location for the heat sink 9.

[0033] First filter 2: Fixed to the outer wall of the air inlet hood 5, used to filter outside air, prevent dust, impurities and other contaminants from entering the air duct, and ensure that the air entering the air duct is clean.

[0034] Rotating shaft 3: Located inside the center of the motor housing 1, penetrating the motor housing 1. When the motor is running, the rotating shaft 3 drives the fan blades 51 to rotate, providing power for airflow.

[0035] External through hole 4: It is opened on the outer wall of the air inlet cover 5. The airflow generated by the fan blade 51 is discharged through the external through hole 4, which blows away the heat absorbed by the heat sink 9 to the outer wall of the motor, thereby enhancing the heat dissipation effect.

[0036] Air inlet shroud 5: Installed on the front outer wall of the motor housing 1, it guides air into the air duct. Its diameter is larger than the front end of the motor housing 1, allowing more air to enter.

[0037] Rotor 6: The core component of the motor, generating heat during motor operation. Located inside the motor housing 1, it is the primary source of heat dissipation.

[0038] Ventilation plate 7: The inner wall is fixedly connected to the air inlet hood 5, and a through hole 71 is opened on it. The air guide plate 8 is installed in the through hole 71 to guide the airflow direction.

[0039] Through hole 71: It is formed on the ventilation plate 7 to provide an installation position for the air guide plate 8, so that the air guide plate 8 can rotate within the through hole.

[0040] Cavity 72: The space inside the motor housing 1. The air inlet shroud 5 is fixedly connected to the cavity 72, and air flows in this space to dissipate heat from the rotor 6.

[0041] Air guide plate 8: Installed in the through hole 71 of the ventilation plate 7, and connected to the turntable 13 through the rotating rod 12. The angle can be adjusted to change the airflow path and ensure that the cold air blows directly to the heating part of the rotor 6.

[0042] Heat sink 9: Fixedly connected to the inner wall of the motor housing 1, distributed in a circular pattern. Its function is to absorb the heat generated by the rotor 6, increase the heat dissipation area, and improve heat dissipation efficiency.

[0043] Second filter 10: Installed at the rear end of motor housing 1, used to filter the air discharged from inside the motor and prevent dust, impurities and other contaminants from entering the external environment.

[0044] First bolt 11: used to fix the second filter screen 10 to the outer wall of the motor housing 1.

[0045] Rotating rod 12: Rotatably connected to the inner wall of the through hole 71 of the ventilation plate 7, one end of which passes through the motor housing 1 and extends to the outside of the motor housing 1. The air guide plate 8 is fixedly sleeved on the outer wall of the rotating rod 12. The rotation of the rotating rod 12 drives the air guide plate 8 to adjust its angle.

[0046] Turntable 13: It is fixedly sleeved on the end of the rotating rod 12 away from the air guide plate 8 and located outside the motor housing 1. By rotating the turntable 13, the rotating rod 12 is driven to rotate, thereby adjusting the angle of the air guide plate 8.

[0047] Bolt holes 14: are formed on the outer wall of turntable 13 and are distributed in a circular pattern, used to fix turntable 13 to motor housing 1 with second bolts 15.

[0048] The second bolt 15 passes through the turntable 13 and is installed on the outer wall of the motor housing 1 to fix the turntable 13, thereby fixing the angle of the air guide plate 8.

[0049] Fan blade 51: Fixedly sleeved on the outer wall of the rotating shaft 3, located inside the air inlet shroud 5. When the motor is running, the fan blade 51 rotates under the drive of the rotating shaft 3, blowing air from the first filter screen 2 into the air inlet shroud 5 to form an airflow.

[0050] Working principle

[0051] When the motor housing 1 is running, the shaft 3 begins to rotate. The rotation of the shaft 3 drives the fan blades 51 to rotate. The fan blades 51 draw air from the first filter 2 into the air inlet shroud 5. The air passes through the through hole 71 on the ventilation plate 7 and enters the inner cavity 72. The air guide plate 8 on the ventilation plate 7 guides the airflow. The air guide plate 8 is connected to the rotating rod 12, which rotates within the through hole 71. The rotation of the rotating rod 12 causes the air guide plate 8 to adjust its angle. The air guide plate 8 is connected to the rotating rod 12, which rotates within the through hole 71. The rotation of the rotating rod 12 causes the air guide plate 8 to adjust its angle. Guided by the air guide plate 8, the airflow generated by the fan blades 51 can more effectively cover the heat-generating area of ​​the rotor 6. The heat sink 9 absorbs the heat generated by the rotor 6. Part of the airflow generated by the fan blades 51 blows towards the heat sink 9, carrying away the heat absorbed by the heat sink 9. This heat is blown towards the rear end of the motor housing 1 and discharged through the second filter 10. The other part of the airflow blows directly towards the rotor 6, carrying away the heat generated on the surface of the rotor 6, and is also discharged through the second filter 10. The airflow generated by the fan blades 5 also exits through the external through-hole 4, blowing away the heat absorbed by the heat sink 9 onto the outer wall of the motor, further enhancing the heat dissipation effect. When the angle of the air guide plate 8 needs to be adjusted, the turntable 13 is rotated, causing the rotating rod 12 to rotate. The rotation of the rotating rod 12 causes the air guide plate 8 to rotate within the through-hole 71. When the air guide plate 8 is adjusted to the appropriate angle, the second bolt 15 is passed through the turntable 13 and connected to the motor housing 1. This method fixes the angle of the air guide plate 8, ensuring that the air guide plate 8 can continuously and effectively guide the airflow.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation duct for a rotor assembly, comprising a motor housing (1), wherein a rotor (6) is disposed inside the motor housing (1), and a rotating shaft (3) is disposed at the center inside the motor housing (1), characterized in that, Also includes: An air inlet hood (5) is fixedly connected to the outer wall of the front end of the motor housing (1). A first filter screen (2) is fixedly connected to the outer wall of the air inlet hood (5). A ventilation plate (7) is fixedly connected to the inner wall of the air inlet hood (5). An air guide plate (8) is provided on the ventilation plate (7). An inner cavity (72) is provided inside the motor housing (1). The air inlet hood (5) is fixedly connected to the inner cavity (72). An adjustment component for adjusting the angle of the air guide plate (8) is provided on the motor housing (1).

2. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 1, characterized in that: The adjustment assembly includes a through hole (71), a rotating rod (12), a turntable (13), bolt holes (14), and a second bolt (15). The through hole (71) is opened on the ventilation plate (7). The rotating rod (12) is rotatably connected to the inner wall of the through hole (71). One end of the rotating rod (12) passes through the motor housing (1) and extends to the outside of the motor housing (1). The air guide plate (8) is fixedly sleeved on the outer wall of the rotating rod (12) and matches the through hole (71). The turntable (13) is fixedly sleeved on the end of the rotating rod (12) away from the air guide plate (8) and located outside the motor housing (1). The bolt holes (14) are opened on the outer wall of the turntable (13) and are circumferentially distributed. The second bolt (15) passes through the turntable (13) and is installed on the outer wall of the motor housing (1).

3. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 2, characterized in that: The air guide plate (8) is matched with the through hole (71).

4. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 1, characterized in that: The outer wall of the rotating shaft (3) is fixedly fitted with several fan blades (51), which are located inside the air inlet cover (5).

5. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 1, characterized in that: The heat sink (9) is fixedly connected to the inner wall of the motor housing (1), and the heat sink (9) is distributed in a circular pattern on the inner wall of the motor housing (1).

6. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 1, characterized in that: The diameter of the air inlet shroud (5) is larger than the front end of the motor housing (1), and the outer wall of the air inlet shroud (5) is provided with an external through hole (4).

7. The high-efficiency heat dissipation air duct for a rotor assembly according to claim 1, characterized in that: The motor housing (1) has a second filter screen (10) at its rear end, and a first bolt (11) is provided between the second filter screen (10) and the outer wall of the motor housing (1).

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