Base of external rotor motor

Abstract

The utility model relates to the technical field of motors, and discloses a base of an external rotor motor, which comprises a mounting disc, a rotating shaft is rotatably connected to the circle center of the mounting disc, and the other end of the rotating shaft is fixedly connected with a rotating frame. According to the base of the external rotor motor, 360-degree rotation of the stator disc around the axis is achieved through cooperation of the rotating shaft and the U-shaped rotating frame, a pitching adjusting mechanism formed by the angle shaft and the adjusting plate supports adjustment of a certain inclination angle of the stator disc, and the stator disc can be stably adjusted and translated in the radial direction through combination of the sliding groove and the sliding block driven by the threaded rod; according to the invention, diversity of overall adjustment and compatibility in different scenes are improved, the device is especially suitable for non-standard base planes or space obstacle avoidance requirements, rapid fixation can be carried out by combining a plurality of groups of first fixing holes and second fixing holes in the rotating frame and the adjusting plate with a self-locking threaded rod, structure self-movement caused by rotation of the motor is avoided, and adjustment stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a base for an external rotor motor. Background Technology

[0002] An external rotor motor is a type of motor structure characterized by its rotor being located outside the motor, while the stator is located inside. Due to its external rotor and direct torque output, external rotor motors are widely used in applications such as fans, pumps, and robot joints. Currently, these motors are mostly installed by directly fixing them to the equipment base using flanges.

[0003] An existing patent (publication number: CN222089390U) discloses a base for an external rotor motor, including a base, a support member disposed on the base, a rotating block rotating within the support member, a motor disposed above the base, a clamping block clamping one end of the motor, a rotating device driving the rotating block to rotate, and a limiting device restricting the position of the other end of the motor; the support member has a rotating groove; the rotating groove has a first sliding groove; the clamping block is slidably connected within the first sliding groove; the rotating device is disposed on the support member; the rotating end of the rotating device engages with the rotating block; and the limiting device is disposed on the base. This solves the problem of quickly clamping motors of different sizes during use, and addresses the issue that existing technologies fix the motor by clamping the motor shaft, which can affect motor performance.

[0004] The aforementioned motors achieve the purpose of quickly clamping and fixing motors of different sizes. However, the tilt angle and axial orientation of the motors cannot be adjusted after installation. When the motor posture needs to be adjusted according to the working conditions during equipment operation, such as space obstacle avoidance or dynamic load adaptation, it is necessary to disassemble and reposition the motor, which leads to cumbersome operation, low efficiency, and even the need to customize special brackets, increasing costs. Secondly, in compact spaces or non-standard installation surfaces, such as curved surfaces or inclined bases, it is difficult to achieve precise alignment, which can easily lead to shaft system off-center load, increased vibration, and shortened lifespan. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a base for an external rotor motor, which has advantages such as easy adjustment and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a base for an external rotor motor, comprising a mounting plate, wherein a rotating shaft is rotatably connected to the center of the mounting plate, and a rotating frame is fixedly connected to the other end of the rotating shaft. The rotating frame has a U-shaped structure, and angle shafts are fixedly connected to both sides of the rotating frame. Adjustment plates are fixedly connected to the outer surfaces of the two angle shafts, and sliders are fixedly connected to the other ends of the two adjustment plates.

[0007] A stator disk is provided between the two sliders. A stator column for mounting the stator is installed on one side of the stator disk. Two grooves are provided on the outer surface of the stator disk, and the two sliders are slidably connected to the grooves that are close to each other.

[0008] Furthermore, the outer surface of the mounting plate is provided with a set of mounting holes arranged in a circle.

[0009] The above solution, with its mounting holes, allows users to easily connect the mounting plate to an external base.

[0010] Furthermore, a set of first fixing holes penetrating the rotating frame are provided on one side of the mounting plate.

[0011] The above solution, through the setting of the first fixing hole, can achieve the purpose of fixing the rotating frame after rotation adjustment.

[0012] Furthermore, a set of second fixing holes penetrating the adjustment plate are provided at the ends of the two angle axes that are far apart from each other.

[0013] The above solution, with the addition of the second fixing hole, makes it easy for users to fix the stator plate after adjusting its angle.

[0014] Furthermore, a set of ventilation grooves is provided on one side of the stator disk.

[0015] The above solution, through the setting of the ventilation groove, facilitates the entry of outside air between the stator and the rotor, thereby improving its heat dissipation effect.

[0016] Furthermore, threaded rods are rotatably connected between the inner top wall and inner bottom wall of the two grooves, and each slider is threadedly connected to its adjacent threaded rod. A hexagonal block is fixedly connected to the top of each threaded rod.

[0017] The above scheme, through the setting of the hexagonal block, allows the user to use an external hex wrench to drive the threaded rod to rotate, thereby driving the stator disk to move radially along the rotation axis, achieving the purpose of adjusting the position of the stator disk.

[0018] Furthermore, the threads of both threaded rods are designed to be self-locking threads.

[0019] The above solution can maintain the stability of the slider position without additional locking devices, simplifying the structure and improving reliability.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0021] The base of this external rotor motor, through the cooperation of a rotating shaft and a U-shaped rotating frame, enables the stator disk to rotate 360° around the axis. The pitch adjustment mechanism, composed of an angle shaft and an adjustment plate, supports the adjustment of the stator disk at a certain tilt angle. The combination of a sliding groove and a threaded rod-driven slider allows the stator disk to be stably adjusted and translated radially, improving the overall adjustment versatility and compatibility in different scenarios. It is especially suitable for non-standard base surfaces or space obstacle avoidance requirements. Multiple sets of first and second fixing holes on the rotating frame and the adjustment plate, combined with self-locking threaded rods, can be quickly fixed to prevent structural displacement caused by motor rotation, ensuring adjustment stability. The array of ventilation slots on the surface of the stator disk can accelerate airflow exchange by utilizing the centrifugal force of the rotating shell, improving heat dissipation efficiency under high-temperature conditions. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0023] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0024] Figure 3 This is a top view of the overall structure of this application;

[0025] Figure 4 This is a structural diagram of the angle axis of this application.

[0026] In the picture:

[0027] 1. Mounting plate; 2. Rotating shaft; 3. Rotating frame; 4. Angle shaft; 5. Adjusting plate; 6. Sliding block; 7. Stator plate; 8. Stator column; 9. Slide groove; 10. Mounting hole; 11. First fixing hole; 12. Second fixing hole; 13. Vent groove; 14. Threaded rod; 15. Hexagonal block. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Please see Figure 1 , Figure 2 and Figure 3In this embodiment, a base for an external rotor motor includes a mounting plate 1. The outer surface of the mounting plate 1 has a set of mounting holes 10 arranged in a circle. The mounting holes 10 facilitate the user to fix the mounting plate 1 to an external base. A rotating shaft 2 is rotatably connected to the center of the mounting plate 1. A rotating frame 3 is fixedly connected to the other end of the rotating shaft 2. A set of first fixing holes 11 penetrating the rotating frame 3 is provided on one side of the mounting plate 1. The first fixing holes 11 can be used to fix the rotating frame 3 after rotation adjustment.

[0030] Please see Figure 1 , Figure 2 and Figure 4 A set of ventilation grooves 13 is provided on one side of the stator disk 7. The ventilation grooves 13 facilitate the entry of outside air between the stator and the rotor, thereby improving the heat dissipation effect. The rotating frame 3 has a U-shaped structure. Angle shafts 4 are fixedly connected to both sides of the rotating frame 3. Adjustment plates 5 are fixedly connected to the outer surfaces of the two angle shafts 4. Slider 6 is fixedly connected to the other end of the two adjustment plates 5. The stator disk 7 is arranged between the two sliders 6. A set of second fixing holes 12 penetrating the adjustment plates 5 are provided at the ends of the two angle shafts 4 that are far apart from each other. The second fixing holes 12 facilitate the user to fix the stator disk 7 after adjusting the angle.

[0031] Please see Figure 1 , Figure 2 and Figure 3 The angle adjustment of the stator disk 7 can be achieved by setting the angle shaft 4 and the angle plate. A stator column 8 for installing the stator is installed on one side of the stator disk 7. Two sliding grooves 9 are set on the outer surface of the stator disk 7. Two sliders 6 are slidably connected to the adjacent sliding grooves 9 respectively. The setting of the sliders 6 can achieve the purpose of moving the stator disk 7 radially along the rotation axis, further improving the installation flexibility. Threaded rods 14 are rotatably connected between the inner top wall and the inner bottom wall of the two sliding grooves 9. Each slider 6 is threadedly connected to the adjacent threaded rod 14. The threads of the two threaded rods 14 are both self-locking threads, which can keep the position of the sliders 6 stable without additional locking devices, simplifying the structure and improving reliability. A hexagonal block 15 is fixedly connected to the top of each screw. The setting of the hexagonal block 15 can make it easy for the user to use an external hex wrench to drive the threaded rod 14 to rotate, thereby driving the stator disk 7 to move radially along the rotation axis 2, achieving the purpose of adjusting the position of the stator disk 7.

[0032] In this embodiment, the base of an external rotor motor, through the cooperation of a rotating shaft 2 and a U-shaped rotating frame 3, enables the stator disk 7 to rotate 360° around the axis. The pitch adjustment mechanism formed by the angle shaft 4 and the adjusting plate 5 supports the adjustment of the stator disk 7 at a certain tilt angle. The combination of the sliding groove 9 and the slider 6 driven by the threaded rod 14 allows the stator disk 7 to be stably adjusted and translated radially, improving the overall adjustment versatility and compatibility in different scenarios, especially suitable for non-standard base surfaces or space obstacle avoidance requirements. The rotating frame 3 and the multiple sets of first fixing holes 11 and second fixing holes 12 on the adjusting plate 5, combined with the self-locking threaded rod 14, can be quickly fixed to avoid structural displacement caused by motor rotation, ensuring adjustment stability. The array of ventilation grooves 13 opened on the surface of the stator disk 7 can accelerate airflow exchange by utilizing the centrifugal force of the rotating shell, improving heat dissipation efficiency under high temperature conditions.

[0033] The working principle of the above embodiment is as follows: First, the base is fixed to the equipment base surface, such as a robotic arm or fan housing, through the mounting holes 10 on the outer circumference of the mounting plate 1, ensuring a rigid connection between the base and the external structure. When it is necessary to adjust the circumferential angle of the stator plate 7, the bolts in the first fixing holes 11 on the rotating frame 3 are loosened, and the rotating shaft 2 is rotated manually or with the help of tools, driving the U-shaped rotating frame 3 and the stator plate 7 to rotate 360° around the axis of the mounting plate 1. After reaching the target position, the bolts in the first fixing holes 11 are tightened. When operating the threaded rod 14 in the slide groove 9, a hex wrench is used to rotate the hexagonal... Block 15 drives the slider 6 to move along the slide groove 9. Since the slider 6 is rigidly connected to the stator disk 7, the forward and reverse rotation of the threaded rod 14 can precisely control the stator disk 7 to move closer or further away from the rotation axis 2, thereby adjusting the motor position. Through the hinge structure between the angle shaft 4 and the adjusting plate 5, the pitch angle of the stator disk 7 can be adjusted. Loosen the bolts of the second fixing holes 12 at both ends of the angle shaft 4, and move the adjusting plate 5 up or down to make the stator disk 7 rotate around the angle shaft 4 to the required tilt angle. Then tighten the bolts of the second fixing holes 12 to fix the pitch angle, which is suitable for different working conditions and installation environments.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A base for an external rotor motor, comprising a mounting plate (1), characterized in that: The center of the mounting plate (1) is rotatably connected to a rotating shaft (2), and the other end of the rotating shaft (2) is fixedly connected to a rotating frame (3). The rotating frame (3) has a U-shaped structure, and angle shafts (4) are fixedly connected to both sides of the rotating frame (3). Adjustment plates (5) are fixedly connected to the outer surfaces of the two angle shafts (4), and sliders (6) are fixedly connected to the other ends of the two adjustment plates (5). A stator plate (7) is provided between the two sliders (6). A stator column (8) for installing the stator is installed on one side of the stator plate (7). Two grooves (9) are provided on the outer surface of the stator plate (7). The two sliders (6) are slidably connected to the grooves (9) that are close to each other.

2. The base of an external rotor motor according to claim 1, characterized in that: The outer surface of the mounting plate (1) is provided with a set of mounting holes (10) arranged in a circle.

3. The base of an external rotor motor according to claim 1, characterized in that: The mounting plate (1) has a set of first fixing holes (11) through the rotating frame (3) on one side.

4. The base of an external rotor motor according to claim 1, characterized in that: Each of the two angle axes (4) is provided with a set of second fixing holes (12) that pass through the adjustment plate (5) at one end.

5. The base of an external rotor motor according to claim 1, characterized in that: A set of ventilation grooves (13) are provided on one side of the stator plate (7).

6. The base of an external rotor motor according to claim 1, characterized in that: A threaded rod (14) is rotatably connected between the inner top wall and the inner bottom wall of the two grooves (9). Each slider (6) is threadedly connected to the threaded rod (14) that is close to it. A hexagonal block (15) is fixedly connected to the top of each threaded rod.

7. The base of an external rotor motor according to claim 6, characterized in that: The threads of both threaded rods (14) are self-locking threads.

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