Rotor device and motor

Abstract

The utility model discloses a rotor device and a motor. The rotor device comprises a base, a rotor and a Hall assembly. The rotor is rotatably arranged on the base; the Hall assembly comprises a permanent magnet, a circuit board, a Hall element and a plurality of supporting columns, the permanent magnet is installed at the rear end of the rotor, the supporting columns are installed on the base, the circuit board is arranged on the supporting columns, the distance between the circuit board and the permanent magnet is adjustable, and the Hall element is arranged on the circuit board. During use, the distance between the Hall element and the permanent magnet is adjusted according to different parameters and models of the Hall element, so that signal transmission between the Hall element and the permanent magnet is kept stable, the signal receiving strength of the Hall element is appropriate, and parameters such as the rotating speed of a motor are accurately measured. Furthermore, the Hall element is arranged in an adjustable manner, thereby improving the measurement precision, improving the response speed, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly to a rotor device and a motor. Background Art

[0002] In a motor control system, as a key position and speed detection component, the performance of a Hall element is directly related to the accuracy of motor speed and position detection and the calibration stability of the overall system. However, due to significant differences in the technical parameters of existing Hall elements, when these elements are installed near the motor rotor, the signal reception intensity will show large fluctuations, thereby significantly affecting the motor speed detection and calibration process. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a rotor device and a motor to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The technical solution adopted to solve the above technical problems:

[0005] The utility model provides a rotor device, including: a base, a rotor, and a Hall assembly; the rotor is rotatably arranged on the base; the Hall assembly includes a permanent magnet, a circuit board, a Hall element, and a plurality of support columns, the permanent magnet is installed at the rear end of the rotor, the plurality of support columns are installed on the base, the circuit board is arranged on the support columns and the distance from the permanent magnet is adjustable, and the Hall element is arranged on the circuit board.

[0006] The beneficial effect of the utility model is:

[0007] During use, according to different parameters and models of the Hall element, the distance between the Hall element and the permanent magnet is adjusted so that the signal transmission between the Hall element and the permanent magnet remains stable, and the signal reception intensity of the Hall element is appropriate to accurately measure parameters such as the motor speed. Furthermore, the adjustable setting of the Hall element has the advantages of improving the measurement accuracy and response speed.

[0008] As a further improvement of the above technical solution, the plurality of support columns are detachably installed on the base, and the circuit board is detachably installed on the plurality of support columns. For different Hall elements, the support columns are removed from the base, and the circuit board is removed from the support columns. Support columns with corresponding lengths are selected, and then the support columns and the circuit board are reinstalled in a set manner to adjust the distance between the Hall element and the permanent magnet. This solution can selectively replace support columns with different lengths.

[0009] As a further improvement of the above technical solution, a plurality of card slots are provided at intervals on the side surface of the support column, the circuit board is provided with mounting holes, and the circuit board is snapped into the card slots from the edge of the mounting holes. During adjustment, the circuit board can be first moved to the same side to disengage the circuit board from the card slot, and then the position of the circuit board is moved, and the circuit board is snapped into the card slot to achieve fixation. The adjustment is relatively simple and the structure is also simple.

[0010] As a further improvement of the above technical solution, the adjustment range of the distance between the circuit board and the permanent magnet is between 0 and 4 cm, and this adjustment range meets the adjustment requirements of most Hall elements.

[0011] As a further improvement of the above technical solution, a plurality of clamping members are slidably adjustable on the shaft of the support column, and the edge of the circuit board is clamped by the clamping members. By sliding and adjusting the position of the clamping members, the distance between the circuit board and the permanent magnet is adjusted, and further the distance between the Hall element and the permanent magnet is changed.

[0012] As a further improvement of the above technical solution, the clamping member includes a clamping portion, a sliding block and a locking portion. The sliding block is slidably sleeved on the support column, the locking portion is used to fix the sliding block to the support column, and the clamping portion is used to clamp the edge of the circuit board.

[0013] When the sliding block is slid to a certain position, the position of the sliding block is fixed by the locking portion, and further the position of the circuit board is fixed. The locking portion can fix the sliding block at any position on the support column, so the distance between the Hall element and the permanent magnet can be finely adjusted.

[0014] As a further improvement of the above technical solution, the locking portion includes a fixing hole provided on the sliding block and a locking screw. The locking screw passes through the fixing hole and abuts against the support column. The locking screw is threadedly connected to the fixing hole, and the locking screw passes through the fixing hole and abuts against the support column, thereby fixing the sliding block to the support column.

[0015] As a further improvement of the above technical solution, the Hall element is provided in the central area of the circuit board, and the Hall element is disposed opposite to the permanent magnet, which optimizes the detection efficiency and accuracy and ensures a better detection effect.

[0016] As a further improvement of the above technical solution, the support column is provided with scale lines. The distance between the Hall element and the permanent magnet can be directly read through the scale lines, so as to quickly adjust the Hall element to a suitable position.

[0017] The present utility model also provides a rotor device, which includes a base, a rotor, and a Hall component. The rotor is rotatably arranged on the base; the Hall component includes a permanent magnet, a circuit board, a Hall element, and a plurality of support columns. The permanent magnet is installed at the rear end of the rotor, the plurality of support columns are replaceably installed on the base, the circuit board is detachably installed on the plurality of support columns, and the Hall element is arranged on the circuit board.

[0018] For different Hall elements, remove the support columns from the base, and remove the circuit board from the support columns. Select support columns with corresponding lengths, and then reinstall the support columns and the circuit board in a set manner to adjust the distance between the Hall element and the permanent magnet. In this solution, support columns with different lengths can be selectively replaced.

[0019] The present utility model also provides a motor, which includes the motor rotor described in any one of the above. The motor is provided with a Hall element, which ensures the efficient and safe operation of the motor, and improves the overall performance and reliability of the system. Moreover, the Hall element is adjustable, which further improves the control accuracy of the motor. Description of the Drawings

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0021] Figure 1 It is a schematic structural diagram of one embodiment of the rotor device provided by the present utility model;

[0022] Figure 2 It is a top view of one embodiment of the rotor device provided by the present utility model;

[0023] Figure 3 It is a side view of one embodiment of the rotor device provided by the present utility model;

[0024] Figure 4 It is a side view of one embodiment of the rotor device provided by the present utility model;

[0025] Figure 5 It is a side view of one embodiment of the rotor device provided by the present utility model. Detailed Description of the Embodiment

[0026] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, if there are vocabulary descriptions such as "a number of", its meaning is one or more, and the meaning of multiple is more than two. Understanding such as greater than, less than, exceeding, etc. does not include the base number, and understanding such as above, below, within, etc. includes the base number.

[0029] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0030] The Hall sensor of the servo motor is mainly used for speed detection, steering angle detection, preventing reverse operation and protecting the motor.

[0031] The Hall sensor is a magnetic field sensor made according to the Hall effect. The Hall effect is a kind of magnetoelectric effect. The main function of the Hall effect sensor is to identify the phase position information of the motor winding and convert it into an electrical signal. The driver obtains the position information of the rotor by reading the output terminal level signal of the Hall element. The logic switch completes the correct commutation according to the rotor position information of the motor, and supplies current to the corresponding winding of the motor to form an air-gap rotating magnetic field to make the motor run continuously. The Hall effect sensor is widely used to identify the relative position between the stator and rotor of the motor and realize the electronic commutation of the motor.

[0032] Refer to Figures 1 to 3 , the rotor device and the motor of the present utility model are made as follows:

[0033] The rotor device includes a base 100, a rotor 200 and a Hall assembly.

[0034] The rotor 200 is rotatably arranged on the base 100;

[0035] The Hall component includes a permanent magnet 300, a circuit board 400, a Hall element 500, and three support columns 600. The support columns 600 are cylindrical, and the permanent magnet 300 is cylindrical. In other embodiments, the cross-sectional area of the support columns 600 can also be oval, polygonal, rectangular, etc. The permanent magnet 300 is installed at the rear end of the rotor 200, and the plurality of support columns 600 are installed on the base 100. The circuit board 400 is disposed on the support columns 600 and is adjustable in distance relative to the permanent magnet 300. The adjustment range of the distance between the circuit board 400 and the permanent magnet 300 is between 0 - 4 cm, and this adjustment range meets the adjustment requirements of most Hall elements 500.

[0036] The Hall element 500 is disposed on the circuit board 400. The Hall element 500 is disposed in the central area of the circuit board 400 and is arranged opposite to the permanent magnet 300, optimizing the detection efficiency and accuracy and ensuring a better detection effect.

[0037] Among them, the Hall element 500 can calculate the rotational speed of the rotor 200 by measuring the Hall voltage generated when the rotor 200 rotates in the magnetic field. In addition, the Hall element 500 can detect the rotation direction of the rotor 200. If the rotor 200 runs in the reverse direction, the Hall element 500 will output an error signal to stop the rotor 200 from running, preventing accidents caused by reverse operation. At the same time, the Hall element 500 can also detect whether the rotor 200 is in a normal working state. If abnormal conditions are found, such as phase loss, short circuit, etc., it will immediately cut off the power supply to protect the motor from damage. These functions are crucial for the control and protection of the servo motor, ensuring the efficient and safe operation of the motor and improving the overall performance and reliability of the system. During use, according to the different parameters and models of the Hall element 500, the distance between the Hall element 500 and the permanent magnet is adjusted so that the signal transmission between the Hall element 500 and the permanent magnet 300 remains stable, making the signal reception intensity of the Hall element 500 appropriate to accurately measure parameters such as the motor speed. Furthermore, the adjustable setting of the Hall element 500 has the advantages of improving the measurement accuracy and enhancing the response speed.

[0038] In some embodiments, multiple said support columns 600 are detachably mounted on the base 100, and the circuit board 400 is detachably mounted on the multiple support columns 600. For example, the support column 600 is threadedly connected to the permanent magnet 300. The support column 600 is provided with a positioning rod. The circuit board 400 is mounted on the positioning rod, and its lower end surface contacts the upper surface of the support column 600. A nut is threadedly connected to the positioning rod, and the lower surface of the nut contacts the upper surface of the circuit board 400 to play a fixing role. For different Hall elements 500, the support column 600 is removed from the base 100, and the circuit board 400 is removed from the support column 600. A support column 600 with a corresponding length is selected, and then the support column 600 and the circuit board 400 are reinstalled in a set manner to adjust the distance between the Hall element 500 and the permanent magnet 300. In this solution, support columns 600 of different lengths can be selectively replaced.

[0039] For further improvement, referring to Figure 5 , the circuit board 400 is disposed on the support column 600 with an adjustable distance relative to the permanent magnet 300. Without replacing the support column 600, the adjustment is more convenient. It should be noted that the adjustable structure in the present utility model enables fine adjustment of the circuit board 400 relative to the support column 600. When the adjustment range is relatively large, the distance of the circuit board 400 can be adjusted by replacing the length of the support column 600.

[0040] Specifically, a plurality of card slots 610 are provided at intervals up and down on the side surface of the support column 600, and the positions of the card slots 610 of each support column 600 correspond one by one. The circuit board 400 is provided with mounting holes, and the circuit board 400 is snapped into the card slots 610 from the edge of the mounting holes. During adjustment, the circuit board 400 can be first moved to the same side to make the circuit board 400 disengage from the card slots 610, and then the position of the circuit board 400 is moved, and the circuit board 400 is snapped into the card slots 610 to achieve fixation. The adjustment is relatively simple and the structure is also simple. To improve the snap-fit strength, the cross-sectional area of the support column 600 can be appropriately increased to increase the depth of the circuit board 400 snapped into the snap-fit groove. The cross-sectional area of the support column 600 can be set as a rectangle.

[0041] To improve the snap-fit effect, an elastic layer is provided in the snap-fit groove. By using the elastic action of the elastic layer, the circuit board 400 is snapped between the two elastic layers, squeezing the circuit board 400, which has a better fixing effect and the circuit board 400 is not easy to shake relative to the support column 600.

[0042] In some other embodiments, a clamping elastic snap-fit portion can be provided in the snap-fit groove, which includes symmetrically arranged springs and clamping plates. A guide plate is provided at the position of the clamping plate close to the snap-fit groove to facilitate the circuit board 400 to be more smoothly snapped between the two clamping plates. The circuit board 400 is clamped and fixed by using the elastic action of the springs, further improving the fixing effect.

[0043] Reference Figure 4 In some other embodiments, as shown in Figure 4 , a plurality of clamping members 700 are slidably and adjustably provided on the support column 600. The edge of the circuit board 400 is fixed to the clamping members 700. By sliding and adjusting the position of the clamping members 700, the distance between the circuit board 400 and the permanent magnet 300 is adjusted, thereby changing the distance between the Hall element 500 and the permanent magnet 300.

[0044] Specifically, the clamping member 700 includes a clamping portion, a sliding block 710, and a locking portion. The sliding block 710 is slidably sleeved on the support column 600. The locking portion is used to fix the sliding block 710 to the support column 600, and the clamping portion is used to clamp and fix the edge of the circuit board 400. When the sliding block 710 is slid to a certain position, the position of the sliding block 710 is fixed by the locking portion, and thus the position of the circuit board 400 is fixed. The locking portion can fix the sliding block 710 at any position on the support column 600, so that the distance between the Hall element 500 and the permanent magnet 300 can be finely adjusted.

[0045] The locking portion includes a fixing hole provided on the sliding block 710 and a locking screw 720. The locking screw 720 passes through the fixing hole and abuts against the support column 600. The locking screw 720 is threadedly connected to the fixing hole, and the locking screw 720 passes through the fixing hole and abuts against the support column 600, thereby fixing the sliding block 710 to the support column 600.

[0046] In some other embodiments, the edge of the circuit board 400 can also be directly fixed to the sliding block 710, without providing the clamping member 700, which makes the structure simpler.

[0047] Furthermore, the support column 600 is provided with scale lines. The distance between the Hall element 500 and the permanent magnet 300 can be directly read through the scale lines, so as to quickly adjust the Hall element 500 to a suitable position.

[0048] The present utility model also provides a motor, including the motor rotor 200 described in any one of the above. The motor is provided with a Hall element 500, which ensures the efficient and safe operation of the motor, improves the overall performance and reliability of the system, and the adjustable setting of the Hall element 500 further improves the control accuracy of the motor.

[0049] The preferred embodiments of the present utility model have been specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. Rotor device, characterized in that, Comprising: Base (100); Rotor (200), rotatably arranged on the base (100); Hall component, including a permanent magnet (300), a circuit board (400), a Hall element (500) and a plurality of support columns (600), the permanent magnet (300) is installed at the rear end of the rotor (200), the plurality of support columns (600) are installed on the base (100), the circuit board (400) is arranged on the support columns (600) and is adjustable in distance relative to the permanent magnet (300), and the Hall element (500) is arranged on the circuit board (400).

2. The rotor device according to claim 1, wherein: The plurality of support columns (600) are detachably installed on the base (100), and the circuit board (400) is detachably installed on the plurality of support columns (600).

3. The rotor device according to claim 1, wherein: A plurality of card slots (610) are spaced on the side surface of the support column (600), the circuit board (400) is provided with mounting holes, and the circuit board (400) is snapped into the card slots (610) from the edge of the mounting holes.

4. The rotor device according to claim 1, wherein: The adjustment range of the distance between the circuit board (400) and the permanent magnet (300) is between 0 - 4 cm.

5. The rotor device according to claim 1, wherein: A plurality of clamping members (700) are slidably and adjustably arranged on the shaft of the support column (600), and the edge of the circuit board (400) is clamped by the clamping members (700).

6. The rotor device according to claim 5, wherein: The clamping member (700) includes a clamping portion, a sliding block (710) and a locking portion, the sliding block (710) is slidably sleeved on the support column (600), the locking portion is used to fix the sliding block (710) on the support column (600), and the clamping portion is used to clamp the edge of the circuit board (400).

7. The rotor device according to claim 6, wherein: The locking portion includes a fixing hole provided on the sliding block (710) and a locking screw (720), and the locking screw (720) passes through the fixing hole and abuts against the support column (600).

8. The rotor device according to claim 1, wherein: The Hall element (500) is arranged in the central area of the circuit board (400), and the Hall element (500) is arranged opposite to the permanent magnet (300).

9. Rotor device, characterized in that, Comprising: Base (100); Rotor (200), rotatably arranged on the base (100); Hall component, including a permanent magnet (300), a circuit board (400), a Hall element (500) and a plurality of support columns (600), the permanent magnet (300) is installed at the rear end of the rotor (200), the plurality of support columns (600) are replaceably installed on the base (100), the circuit board (400) is detachably installed on the plurality of support columns (600), and the Hall element (500) is arranged on the circuit board (400).

10. Electric motor, characterized in that, Comprising the rotor device according to any one of claims 1 to 9.

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