Motor control assembly and electronic equipment
By integrating Hall sensing devices on the control motherboard and setting them in the accommodity and cost of welding in traditional motor designs, more efficient and reliable motor control is achieved, and detection accuracy is improved. Heat dissipation performance.
Patent Information
- Application Number
- CN202421028728.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In traditional motor design, the welding process between the Hall board and the main control board is complicated, which increases assembly difficulty and production cost, and can easily lead to an increase in defective rate.
Directly integrate Hall induction devices on the control motherboard, eliminating the Hall plate setting, and at least partially set the Hall induction device in the accommodation gap between the coil core and the rotor magnetic ring and the fixed shell, so as to achieve position through electromagnetic field induction and speed detection.
Simplified the motor control structure, reduced the number of parts and assembly costs, improved the reliability and stability of the motor, enhanced the magnetic field induction accuracy, reduced magnetic interference, improved heat dissipation performance, and extended the service life of Hall induction devices. .
Smart Images
Figure CN222262419U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of motor technology, and in particular to a motor control component and an electronic device. Background Art
[0002] Motors play a vital role in the wide application of electronic devices. Traditional motor designs usually include two core components: the main control board and the Hall plate. The main control board is responsible for the main control functions of the motor, while the Hall plate carries the Hall sensing devices, which interact with the permanent magnets on the motor to accurately detect the position and speed of the motor.
[0003] However, this traditional assembly method has significant problems. In particular, the welding process between the Hall plate and the main control board requires precise processes and professional equipment. The increase in welding points not only increases the difficulty of assembly, but also easily leads to an increase in the defective rate, further increasing production costs. Utility Model Content
[0004] The embodiments of the present application provide a motor control component and an electronic device, which can omit the provision of a Hall plate to achieve a simpler and more efficient motor assembly method and reduce production costs.
[0005] In a first aspect, an embodiment of the present application provides a motor control component, the motor control component comprising:
[0006] Fixed shell;
[0007] A control mainboard, the control mainboard being arranged in the fixed shell;
[0008] A motor, the motor comprising a stator assembly and a rotor assembly, the stator assembly being fixedly arranged on a side wall of the fixed shell, the rotor assembly being rotatably arranged on the stator assembly via a bearing, the stator assembly comprising a coiled iron core electrically connected to the control main board, the rotor assembly comprising a rotor magnetic ring arranged around the circumference of the coiled iron core, the rotor magnetic ring being rotatable under the electromagnetic field of the coiled iron core, and the coiled iron core and the rotor magnetic ring being spaced apart from the side wall of the fixed shell to form an accommodation gap; and
[0009] A Hall sensor device is fixedly connected to a side of the control mainboard facing the rotor assembly and is at least partially located in the accommodating gap so as to be spaced apart from the rotor magnetic ring. The Hall sensor device is used to sense changes in the magnetic field of the rotor magnetic ring.
[0010] In some embodiments, there are multiple Hall sensing devices, and the multiple Hall sensing devices are spaced apart on the side of the control main board facing the rotor assembly, and the multiple Hall sensing devices are distributed in arc-shaped intervals adapted to the rotor magnetic ring, and the angles between two adjacent Hall sensing devices and the center lines of the rotor magnetic ring are equal.
[0011] In some of the embodiments, in the direction from the rotor magnetic ring toward the side wall of the fixed housing, the spacing distance between the Hall sensing device and the side wall of the fixed housing is greater than the spacing distance between the Hall sensing device and the rotor magnetic ring.
[0012] In some of the embodiments, a power terminal and a motor terminal are provided on the surface of the control main board facing away from the Hall sensing device, wherein the power terminal is mainly used to connect an external power source, and the motor terminal is electrically connected to the winding coil core for controlling the current of the winding coil core.
[0013] In some of the embodiments, in the thickness direction of the control main board, the Hall sensor device is staggered with the power terminal and the motor terminal.
[0014] In some of the embodiments, the control main board is detachably connected to the top wall of the fixed shell, and the control main board is partially extended outside the top wall of the fixed shell, and the Hall sensing device is connected to the portion of the control main board extending outside the top wall of the fixed shell.
[0015] In some embodiments, the control main board has a first connecting hole, the top wall of the fixed shell has a second connecting hole corresponding to the first connecting hole, and the motor control component also includes a fastener, which passes through the first connecting hole and the second connecting hole in sequence to fix the control main board and the top wall of the fixed shell.
[0016] In some embodiments, the area of the portion of the control mainboard extending out of the top wall of the fixed shell is smaller than the area of the portion of the control mainboard located outside the top wall of the fixed shell.
[0017] In some embodiments, the rotor assembly also includes a motor shell mounted on the outer periphery of the rotor magnetic ring, and the side wall of the fixed shell extends outwardly with a protective wall, which surrounds the outer periphery of the motor shell and is spaced apart from the outer wall of the motor shell.
[0018] In a second aspect, an embodiment of the present application provides an electronic device, which includes the motor control component as described above.
[0019] In the technical solution of the motor control assembly and electronic equipment of the present application, by directly integrating the Hall sensing device on the control main board, the traditional Hall plate setting is omitted. This design greatly simplifies the structure of the motor control, reduces the number of parts, and reduces the difficulty and cost of assembly. At the same time, this design also improves the reliability and stability of the motor control, because the welding points and connection points are reduced, and the defective rate is reduced. In addition, the Hall sensing device is at least partially arranged in the accommodation gap between the winding coil core and the rotor magnetic ring and the side wall of the fixed shell, which not only improves the sensing accuracy of the magnetic field change of the rotor magnetic ring, making the detection of the rotor magnetic ring more accurate, but also reduces the magnetic interference of other electromagnetic components on the Hall sensing device, ensuring its stability and reliability. At the same time, the existence of the accommodation gap also helps to improve the heat dissipation performance of the motor, reduce the operating temperature of the Hall sensing device, and increase its service life.
[0020] The motor control component of the present application omits the Hall plate setting and sets the Hall sensing device in the accommodating gap, which not only simplifies the structure and reduces the cost, but also improves the performance, stability and reliability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of a motor control component of the present application;
[0023] Figure 2 This is a schematic cross-sectional view of the motor control assembly of the present application;
[0024] Figure 3 This is a schematic diagram of the assembly structure of the motor control component of this application;
[0025] Figure 4 This is a schematic diagram of the assembly structure of the motor control component of the present application from another perspective;
[0026] Figure 5 This is a schematic cross-sectional structural diagram of the motor control component of the present application from another perspective.
[0027] Description of Figure Numbers:
[0028] 100, motor control assembly; 10, fixed shell; 11, side wall; 12, top wall; 13, protective wall; 20, control main board; 21, power terminal; 22, motor terminal; 31, stator assembly; 311, coil core; 312, fixed bracket; 32, rotor assembly; 321, rotor magnetic ring; 322, motor shell; 323, rotating shaft; 40, Hall sensor device; 50, accommodation gap; 60, bearing.
[0029] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.
[0031] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0032] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0034] Motors play a vital role in the wide application of electronic devices. Traditional motor designs usually include two core components: the main control board and the Hall plate. The main control board is responsible for the main control functions of the motor, while the Hall plate carries the Hall sensing devices, which interact with the permanent magnets on the motor to accurately detect the position and speed of the motor.
[0035] However, this traditional assembly method has significant problems. In particular, the welding process between the Hall plate and the main control board requires precise processes and professional equipment. The increase in welding points not only increases the difficulty of assembly, but also easily leads to an increase in the defective rate, further increasing production costs.
[0036] To solve the above problems, please refer to Figures 1 to 3 In a first aspect of the present application, a motor control component 100 is proposed. In an embodiment of the present application, the motor control component 100 includes a fixed shell 10, a control main board 20, a motor and a Hall sensor device 40.
[0037] Among them, the fixed shell 10 is the main supporting structure of the motor control component 100. The fixed shell 10 can be made of high-strength, corrosion-resistant materials, has good protection performance, and can effectively protect the motor control component 100 from the influence of the external environment. It should be noted that the material of the fixed shell 10 is not limited to a certain one, and the materials of the fixed shell 10 commonly used in the field can be applied to the embodiments of the utility model, and they are not listed one by one here.
[0038] The control mainboard 20 is disposed in the fixed housing 10 . The control mainboard 20 is the core control component of the motor control assembly 100 . A variety of electronic components and circuits are integrated thereon to realize the control function of the motor. The control mainboard 20 may be a PCBA (Printed Circuit Board Assembly) or the like.
[0039] The motor is composed of a stator assembly 31 and a rotor assembly 32, and is a key component for converting electrical energy into mechanical energy. The stator assembly 31 includes a fixed bracket 312 and a coil core 311 connected to each other. The fixed bracket 312 can be fixed to the side wall 11 of the fixed shell 10 by means of screws or snaps, and the coil core 311 is electrically connected to the control main board 20. The rotor assembly 32 is rotatably arranged on the stator assembly 31 through a bearing 60, and includes a rotor magnetic ring 321 surrounding the circumference of the coil core 311. The coil core 311 and the rotor magnetic ring 321 are both spaced apart from the side wall 11 of the fixed shell 10 to form an accommodation gap 50 to accommodate the Hall sensor device 40.
[0040] The Hall sensor device 40 is fixedly connected to the side of the control main board 20 facing the rotor assembly 32, and is at least partially located in the accommodating gap 50, and is spaced apart from the rotor magnetic ring 321. The Hall sensor device 40 is used to sense the change of the magnetic field of the rotor magnetic ring 321, and transmit the sensed signal to the control main board 20, so that the control main board 20 adjusts the running state of the motor according to the signal.
[0041] When the motor is powered on, an electromagnetic field is generated around the coil core 311, which acts on the rotor magnetic ring 321, causing the rotor assembly 32 to rotate under the action of the electromagnetic force. The rotation of the rotor magnetic ring 321 causes the magnetic field to change, and the Hall sensor 40 senses these changes and transmits signals to the control motherboard 20. The control motherboard 20 adjusts the current size and direction of the coil core 311 according to the received signal, thereby achieving precise control of parameters such as the motor speed and direction.
[0042] In the technical solution of the motor control component 100 and the electronic device of the present application, by directly integrating the Hall sensor device 40 on the control main board 20, the traditional Hall plate setting is omitted. This design greatly simplifies the structure of the motor control, reduces the number of parts, and reduces the difficulty and cost of assembly. At the same time, this design also improves the reliability and stability of the motor control, because the welding points and connection points are reduced, and the defective rate is reduced. In addition, the Hall sensor device 40 is at least partially arranged in the accommodation gap 50 between the coil core 311 and the rotor magnetic ring 321 and the side wall 11 of the fixed shell 10, which not only improves the sensing accuracy of the magnetic field change of the rotor magnetic ring 321, making the detection of the rotor magnetic ring 321 more accurate, but also reduces the magnetic interference of other electromagnetic components on the Hall sensor device 40, ensuring its stability and reliability. At the same time, the existence of the accommodation gap 50 also helps to improve the heat dissipation performance of the motor, reduce the operating temperature of the Hall sensor device 40, and increase its service life.
[0043] The motor control component 100 of the present application not only simplifies the structure and reduces the cost, but also improves the performance, stability and reliability of the motor by omitting the Hall plate setting and setting the Hall sensing device 40 in the accommodating gap 50.
[0044] Reference Figure 1 , Figure 2 as well as Figure 5Optionally, the Hall sensor device 40 is provided with a plurality of Hall sensor devices 40, and the plurality of Hall sensor devices 40 are arranged at intervals on the side of the control main board 20 facing the rotor assembly 32, and the plurality of Hall sensor devices 40 are distributed along the arc-shaped intervals adapted to the rotor magnetic ring 321, and the angle between the center line of two adjacent Hall sensor devices 40 and the rotor magnetic ring 321 is equal. In this way, by arranging a plurality of Hall sensor devices 40 along the arc-shaped intervals adapted to the rotor magnetic ring 321, and ensuring that the angle between the center line of two adjacent Hall sensor devices 40 and the rotor magnetic ring 321 is equal, this design significantly improves the detection accuracy, enhances the reliability of the system, and optimizes the control performance of the motor. This multi-point detection method makes the detection of the magnetic field change of the rotor magnetic ring 321 more comprehensive and accurate, so as to more accurately reflect the operating state of the rotor. At the same time, even if a Hall sensor device 40 fails, other Hall sensor devices 40 that are working normally can provide sufficient information to ensure the stable operation of the motor control component 100. Among them, the angle can be 24°.
[0045] Reference Figures 2 to 4 In some structural forms, in the direction of the rotor magnetic ring 321 toward the side wall 11 of the fixed shell 10, the spacing distance between the Hall sensing device 40 and the side wall 11 of the fixed shell 10 is greater than the spacing distance between the Hall sensing device 40 and the rotor magnetic ring 321. This design enhances the sensitivity of the Hall sensing device 40 to the magnetic field changes of the rotor magnetic ring 321. Since the spacing distance between the Hall sensing device 40 and the rotor magnetic ring 321 is small, the magnetic field changes of the rotor magnetic ring 321 can act more directly and strongly on the Hall sensing device 40, thereby improving its detection accuracy and response speed to magnetic field changes. At the same time, this design optimizes the working environment of the Hall sensing device 40. By increasing the spacing distance between the Hall sensing device 40 and the side wall 11 of the fixed shell 10, the interference of the external environment on the Hall sensing device 40, such as temperature, humidity, vibration and other factors, can be reduced, thereby improving the stability and reliability of the Hall sensing device 40.
[0046] Reference Figures 2 to 4In some structural forms, the surface of the control mainboard 20 away from the Hall sensor device 40 is provided with a power terminal 21 and a motor terminal 22, wherein the power terminal 21 is mainly used to connect an external power source, and the motor terminal 22 is electrically connected to the coil core 311 to control the current of the coil core 311. Among them, the setting of the power terminal 21 makes the connection of the external power source more direct and convenient, and effectively improves the efficiency and safety of power access. Through the standardized power interface, the stable supply of power can be ensured, providing a reliable guarantee for the normal operation of the motor control component 100. At the same time, the setting of the motor terminal 22 realizes a direct electrical connection with the coil core 311. This means that the control mainboard 20 can directly control the current of the coil core 311, thereby realizing precise control of the motor operation state. This direct control method not only improves the control accuracy, but also reduces the loss and interference in the signal transmission process, and further enhances the stability and reliability of the motor operation.
[0047] In addition, the power terminal 21 and the motor terminal 22 are arranged on the surface of the control mainboard 20 away from the Hall sensing device 40, which brings the following significant benefits: First, such a layout effectively reduces the potential interference of the power supply and motor circuits on the Hall sensing device 40. Since the power terminal 21 and the motor terminal 22 are respectively located on different surfaces of the control mainboard 20 and the Hall sensing device 40, the electrical isolation between them is more thorough, thereby reducing the potential impact on the detection accuracy of the Hall sensing device 40. Secondly, such a design optimizes the internal space layout of the motor control component 100. The power terminal 21 and the motor terminal 22 are arranged on the other side of the control mainboard 20, which can make the layout of the Hall sensing device 40 and its peripheral circuits more compact, and improve the integration and space utilization of the entire component. Furthermore, such a layout also facilitates the installation and maintenance of the motor control component 100. The power terminal 21 and the motor terminal 22 are located on the outside of the component, making the access to the external power supply and motor circuit more intuitive and convenient, reducing the difficulty of installation. At the same time, during the maintenance process, if the Hall sensor device 40 needs to be replaced or repaired, since the power terminal 21 and the motor terminal 22 are located on the other side, they will not interfere with them, thereby improving the efficiency and convenience of maintenance. It should be noted that the control motherboard 20 can also be provided with button terminals, charging terminals, heating plate terminals, capacitor terminals and speaker terminals.
[0048] Furthermore, in the thickness direction of the control main board 20, the Hall sensing device 40 is staggered with the power terminal 21 and the motor terminal 22. This staggered layout effectively reduces electromagnetic interference. Since the power terminal 21 and the motor terminal 22 are responsible for the connection of the external power supply and the motor circuit, they may generate electromagnetic fields during operation. By staggering the Hall sensing device 40 in the vertical direction, the interference of these electromagnetic fields on the Hall sensing device 40 can be significantly reduced, thereby ensuring the accuracy of the Hall sensing device 40 in detecting the magnetic field changes of the rotor magnetic ring 321. Secondly, this staggered layout optimizes the internal space utilization of the control main board 20. By rationally planning the positions of the power terminal 21, the motor terminal 22 and the Hall sensing device 40, the space of the control main board 20 can be maximized while ensuring the functional integrity of each component, thereby improving the integration and compactness of the entire motor control component 100. In addition, this staggered layout also enhances the heat dissipation performance of the control main board 20. Since the power terminals 21 and the motor terminals 22 may generate a certain amount of heat during operation, staggering them with the Hall sensing device 40 can prevent heat from being directly conducted to the Hall sensing device 40, thereby ensuring that the Hall sensing device 40 operates at a stable operating temperature and extending its service life.
[0049] Reference Figures 2 to 4 In some structural forms, the control main board 20 is detachably connected to the top wall 12 of the fixed shell 10, and the control main board 20 is partially extended out of the top wall 12 of the fixed shell 10, and the Hall sensor device 40 is connected to the portion of the control main board 20 extending out of the top wall 12 of the fixed shell 10. First, by making the control main board 20 detachably connected to the top wall 12 of the fixed shell 10, it is not only convenient to install and disassemble the entire control main board 20, but also convenient for subsequent maintenance and replacement. This design allows for quick and convenient operation when the control main board 20 needs to be repaired or replaced, thereby reducing downtime and maintenance costs. Secondly, the setting that the control main board 20 partially extends out of the top wall 12 of the fixed shell 10 provides a more flexible layout space for the Hall sensor device 40. By connecting the Hall sensor device 40 to the portion of the control main board 20 extending out of the top wall 12 of the fixed shell 10, it can face the rotor magnetic ring 321 more directly, reducing the interference of other components on the magnetic field detection. This layout not only improves the sensitivity of the Hall sensor device 40 to magnetic field changes, but also ensures the accuracy of the detection result.
[0050] In addition, this design also optimizes the heat dissipation performance of the motor control assembly 100. Since the control mainboard 20 partially extends out of the top wall 12 of the fixed shell 10, the heat dissipation area is increased, which is conducive to the dissipation of heat. This is very important for maintaining a stable operating temperature of the control mainboard 20 and its components, especially under high load or long-term operation.
[0051] Further, the control main board 20 has a first connection hole, the top wall 12 of the fixed shell 10 has a second connection hole corresponding to the first connection hole, and the motor control assembly 100 also includes a fastener, which passes through the first connection hole and the second connection hole in sequence to fix the control main board 20 and the top wall 12 of the fixed shell 10. Among them, the first connection hole and the second connection hole can be threaded holes, and the fastener can be a screw. The control main board 20 and the top wall 12 of the fixed shell 10 are fixed by screws. This fixing method is relatively simple to install and easy to disassemble, which is convenient for subsequent maintenance. It should be noted that the number of the first connection hole and the second connection hole can be multiple and correspond to each other, so that each fastener can pass through the first connection hole and the second connection hole in sequence to improve the stability of the connection between the control main board 20 and the top wall 12 of the fixed shell 10. Of course, in other embodiments, the control main board 20 and the top wall 12 of the fixed shell 10 can also be fixed by a connection method commonly used in the field such as a pin connection and a rivet connection.
[0052] Optionally, the area of the portion of the control main board 20 extending outside the top wall 12 of the fixed shell 10 is smaller than the area of the portion of the control main board 20 located outside the top wall 12 of the fixed shell 10. This design ensures good structural support and stability between the control main board 20 and the fixed shell 10. Since most of the control main board 20 is located on the fixed shell 10, the top wall 12 of the fixed shell 10 provides stable support, so that the entire control main board 20 can remain stable when subjected to external impact or vibration, thereby ensuring reliable operation of the motor control component 100.
[0053] Reference Figures 2 to 4In some structural forms, the rotor assembly 32 further includes a motor housing 322 sleeved on the outer periphery of the rotor magnetic ring 321, and the side wall 11 of the fixed housing 10 extends outward with a protective wall 13, which surrounds the outer periphery of the motor housing 322 and is spaced apart from the outer wall of the motor housing 322. Firstly, this design provides effective protection for the motor housing 322 and the rotor assembly 32 inside it. By making the protective wall 13 surround the outer periphery of the motor housing 322 and keep a distance from the outer wall of the motor housing 322, a protective area is formed, which can prevent external factors such as dust, moisture or accidental collision from damaging the motor housing 322 and its internal components. This not only ensures the stability and reliability of the motor control assembly 100, but also prolongs its service life. Secondly, this design optimizes the heat dissipation performance of the motor control assembly 100. Since the protective wall 13 is spaced apart from the outer wall of the motor housing 322, a certain heat dissipation space is formed. This allows the heat generated during the operation of the motor to be effectively dissipated through air convection, reducing the temperature of the motor housing 322 and its internal components, thereby improving the operating efficiency and stability of the motor. In addition, the rotor assembly 32 also includes a rotating shaft 323 connected to the motor housing 322, and the rotating shaft 323 is connected to the fixed bracket 312 of the stator assembly 31 through a bearing 60.
[0054] The present application also proposes an electronic device, which includes a motor control component 100. The specific structure of the motor control component 100 refers to the above embodiment. Since the electronic device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the electronic device can be a massager, etc.
[0055] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application 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, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0056] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A motor control component, characterized in that: include: Fixed shell; A control mainboard, the control mainboard being arranged in the fixed shell; A motor, the motor comprising a stator assembly and a rotor assembly, the stator assembly being fixedly arranged on the side wall of the fixed shell, the rotor assembly being rotatably arranged on the stator assembly through a bearing, the stator assembly comprising a coiled iron core electrically connected to the control main board, the rotor assembly comprising a rotor magnetic ring arranged around the circumference of the coiled iron core, the rotor magnetic ring being rotatable under the electromagnetic field of the coiled iron core, and the coiled iron core and the rotor magnetic ring being spaced apart from the side wall of the fixed shell to form an accommodating gap; as well as A Hall sensor device is fixedly connected to a side of the control mainboard facing the rotor assembly and is at least partially located in the accommodating gap so as to be spaced apart from the rotor magnetic ring. The Hall sensor device is used to sense changes in the magnetic field of the rotor magnetic ring.
2. The motor control assembly according to claim 1, characterized in that There are multiple Hall sensing devices, and the multiple Hall sensing devices are arranged at intervals on the side of the control main board facing the rotor assembly, and the multiple Hall sensing devices are distributed at intervals along the arc shape adapted to the rotor magnetic ring, and the angles between two adjacent Hall sensing devices and the center line of the rotor magnetic ring are equal.
3. The motor control assembly according to claim 1, characterized in that: In a direction from the rotor magnetic ring toward the side wall of the fixed housing, a spacing distance between the Hall sensor device and the side wall of the fixed housing is greater than a spacing distance between the Hall sensor device and the rotor magnetic ring.
4. The motor control assembly according to claim 1, characterized in that: The surface of the control main board facing away from the Hall sensor is provided with a power terminal and a motor terminal, wherein the power terminal is mainly used to connect an external power source, and the motor terminal is electrically connected to the coil core to control the current of the coil core.
5. The motor control assembly according to claim 4, characterized in that: In the thickness direction of the control main board, the Hall sensor device is staggered with the power terminal and the motor terminal.
6. The motor control assembly according to claim 1, characterized in that: The control mainboard is detachably connected to the top wall of the fixed shell, and the control mainboard is partially extended out of the top wall of the fixed shell, and the Hall sensor is connected to the part of the control mainboard extending out of the top wall of the fixed shell.
7. The motor control assembly according to claim 6, characterized in that: The control main board has a first connection hole, the top wall of the fixed shell has a second connection hole corresponding to the first connection hole, and the motor control component also includes a fastener, which passes through the first connection hole and the second connection hole in sequence to fix the control main board and the top wall of the fixed shell.
8. The motor control assembly according to claim 6, characterized in that: The area of the portion of the control mainboard extending out of the top wall of the fixed shell is smaller than the area of the portion of the control mainboard located outside the top wall of the fixed shell.
9. The motor control assembly according to claim 1, characterized in that: The rotor assembly also includes a motor shell sleeved on the outer circumference of the rotor magnetic ring. The side wall of the fixed shell extends outward with a protective wall, which surrounds the outer circumference of the motor shell and is spaced apart from the outer wall of the motor shell.
10. An electronic device, characterized in that: Comprising a motor control component as claimed in any one of claims 1 to 9.