Motor and electronic equipment

Abstract

The embodiment of the invention provides a motor and electronic equipment. The motor comprises a housing which is internally provided with an accommodating space; the fixing shaft is arranged in the containing space in the first direction and connected with the shell; the magnetic part is rotationally connected to the fixed shaft; the mass block is connected to the magnetic piece; and the multiple coils are arranged in the containing space and connected with the side wall of the shell, the multiple coils are arranged at intervals with the fixing shaft as the center, and the coils are used for driving the magnetic part to rotate around the fixing shaft or brake under the power-on condition.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a motor and an electronic device. Background Art

[0002] As users pursue the ultimate user experience, the functions of electronic devices such as mobile phones and tablets are becoming more and more abundant, and the user experience is also getting higher and higher. For example, to improve the user experience when playing games, electronic devices can usually vibrate or swing to simulate usage scenarios.

[0003] Conventional technology typically incorporates linear motors into electronic devices to achieve vibration or oscillation. Since linear motors are typically limited to reciprocating motion in a single direction, achieving multi-directional vibration or oscillation requires multiple linear motors. This can easily increase the structural complexity of the electronic device and affect the layout of other components within the device. Summary of the Invention

[0004] The present application aims to provide a motor and an electronic device to solve the problem of a single motion mode of existing motor structures.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a motor, comprising:

[0007] a housing, wherein the housing has a receiving space;

[0008] a fixed shaft, disposed in the accommodation space along a first direction and connected to the housing;

[0009] a magnetic member, the magnetic member being rotatably connected to the fixed shaft;

[0010] a mass block connected to the magnetic member;

[0011] And a plurality of coils are arranged in the accommodating space and connected to the side wall of the shell. The plurality of coils are arranged at intervals with the fixed axis as the center. The coils are used to drive the magnetic part to rotate or brake around the fixed axis when powered.

[0012] In a second aspect, the present application also discloses an electronic device, the electronic device comprising: the motor described in any one of the above

[0013] In an embodiment of the present application, the magnetic part can be rotatably connected to the fixed shaft, and the plurality of coils are arranged at intervals with the fixed shaft as the center. When the coil is energized, electromagnetic induction can be generated between the coil and the magnetic part to drive the magnetic part to rotate or brake around the fixed shaft. In a specific application, by controlling the coil current and the current direction, the rotation speed and rotation direction of the magnetic part in different areas of the accommodating space can be controlled, so that the magnetic part generates different vibration modes within its rotation plane, giving the user a richer vibration experience. In this way, in the case where the electronic device is used in an electronic device, since the magnetic part of the motor can generate different vibration modes in multiple directions of its rotation plane, the operation of setting up multiple linear motors in the electronic device can be avoided, which not only reduces the structural complexity of the electronic device, but also provides more space for the layout of other components in the electronic device.

[0014] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0016] Figure 1 is a structural schematic diagram of a motor described in an embodiment of the present application;

[0017] Figure 2 yes Figure 1 One of the working state diagrams of the motor shown;

[0018] Figure 3 yes Figure 1 The second schematic diagram of the working state of the motor shown;

[0019] Figure 4 yes Figure 1 Schematic diagram of the range of motion of the magnetic parts in the motor shown.

[0020] Reference numerals: 10 - housing, 11 - fixed shaft, 12 - magnetic member, 121 - first magnetic pole, 122 - second magnetic pole, 13 - mass block, 14 - coil, 15 - position detection sensor. DETAILED DESCRIPTION

[0021] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and are not to be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of this application.

[0022] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] Reference Figure 1 , shows a schematic structural diagram of a motor according to an embodiment of the present application, such as Figure 1As shown, the motor may specifically include: a shell 10, which has a accommodating space; a fixed shaft 11, which is arranged in the accommodating space along a first direction Z and is connected to the shell 10, and the fixed shaft 11 can be located at the center of the accommodating space; a magnetic part 12, which is rotatably connected to the fixed shaft 11; a mass block 13, which is connected to the magnetic part 12; and a plurality of coils 14, which are arranged in the accommodating space and connected to the side wall of the shell 11, and the plurality of coils 14 are arranged at intervals with the fixed shaft 11 as the center, and the coils 14 are used to drive the magnetic part 12 to rotate or brake around the fixed shaft 11 when power is supplied.

[0026] In an embodiment of the present application, the magnetic part 12 can be rotatably connected to the fixed shaft 11, and a plurality of coils 14 are arranged at intervals with the fixed shaft 11 as the center. When the coil 14 is energized, electromagnetic induction can be generated between the coil 14 and the magnetic part 12 to drive the magnetic part 12 to rotate or brake around the fixed shaft 11. In a specific application, by controlling the current size and current direction of the coil 14, the rotation speed and rotation direction of the magnetic part 12 in different areas of the accommodating space can be controlled, so that the magnetic part 12 generates different vibration modes in its rotation plane, giving the user a richer vibration experience. In this way, in the case where the electronic device is used in an electronic device, since the magnetic part 12 of the motor can generate different vibration modes in multiple directions of its rotation plane, the operation of setting up multiple linear motors in the electronic device can be avoided, which not only reduces the structural complexity of the electronic device, but also provides more space for the layout of other components in the electronic device.

[0027] In specific applications, the housing 10 can serve as a support structure for the motor and can be made of a material with a certain structural strength. For example, the housing 10 can be a metal housing or a plastic housing. In practical applications, the housing 10 can be fixed in an electronic device. When the housing 10 vibrates or swings, it can drive the entire electronic device to vibrate or swing accordingly, providing tactile feedback to the user.

[0028] Specifically, the housing 10 has a storage space inside, and the fixed shaft 11, the magnetic part 12, the mass block 13 and the coil 14 can all be arranged in the storage space. The housing 10 can not only be used to support and fix the above-mentioned components, but also provide protection for the above-mentioned components. The fixed shaft 11 serves as the rotation center of the magnetic part 12 and the mass block 13 and can be arranged in the center of the storage space. In this way, it is not only convenient for the magnetic part 12 and the mass block 13 to rotate or brake around the fixed shaft 11, but also can avoid the magnetic part 12 and the mass block 13 from interfering with the side wall of the housing 10 during the rotation process.

[0029] In actual applications, by connecting the mass block 13 to the magnetic part 12, when the magnetic part 12 drives the mass block 13 to rotate, the mass block 13 will follow the magnetic part 12 to perform reciprocating motion, thereby generating vibration. This vibration is transmitted through the shell 10 to the device in contact with it, such as a mobile phone or other electronic device, to provide tactile feedback to the user. By smoothly transmitting the reciprocating motion of the mass block 13 to generate the required mechanical energy, the intermediate links in energy transmission are reduced and the efficiency of energy conversion is improved. Compared with traditional rotating motors, the motor described in the embodiment of the present application reduces friction and mechanical losses during the energy conversion process, thereby improving overall efficiency.

[0030] In an embodiment of the present application, the multiple coils 14 connected to the housing 10 can serve as stators, and the magnetic part 12 and the mass block 13 can serve as movers. The multiple coils 14 are spaced apart on the side wall of the housing 10, and are spaced apart from the magnetic part 12 along the first direction Z. When it is necessary to start the motor, the coils 14 can be energized, and the magnetic field generated by the multiple coils 14 interacts with the magnetic field generated by the magnetic part 12, driving the magnetic part 12 and the mass block 13 to rotate relative to the fixed shaft 11. When the magnetic part 12 needs to stop rotating, the interaction force generated by the multiple coils 14 can be reversed to provide braking force to the magnetic part 12 and the mass block 13, so as to achieve braking of the magnetic part 12 and the mass block 13. In this way, the motor described in the embodiment of the present application can be quickly started and stopped without the need for a spring.

[0031] In some optional embodiments of the present application, the motor may further include a control module, the coil 14 is electrically connected to the control module, and the control module can be used to input current to the coil 14; the coil can be used to drive the magnetic part 12 to rotate around the fixed axis 11 when receiving a first current input by the control module, and drive the magnetic part 12 to brake when receiving a second current input by the control module; wherein the direction of the first current is opposite to the direction of the second current.

[0032] In a specific application, when it is necessary to control the rotation of the magnetic part 12, the control module can input a first current into the coil 14 to drive the magnetic part 12 to rotate in a certain direction around the fixed axis 11 through the electromagnetic induction between the coil 14 and the magnetic part 12. When it is necessary to brake the magnetic part 12, a second current opposite to the direction of the first current can be passed into the coil 14 through the control module. At this time, the magnetic force of the coil 14 on the magnetic part 12 will also switch direction. Under the action of this magnetic force, the rotation speed of the magnetic part 12 will decrease until it is reduced to 0, thereby achieving braking. Finally, under the action of this magnetic force, the magnetic part 12 will restart the rotation in the opposite direction to achieve the switching of the rotation direction.

[0033] Specifically, during the rotation of the magnetic member 12, the rotational speed of the magnetic member 12 is related to the magnitude of the current input into the coil 14. In actual applications, the magnitude of the current in the coil 14 affects the magnitude of the magnetic force exerted by the coil 14 on the magnetic member 12. The greater the current, the greater the magnetic force exerted by the coil 14 on the magnetic member 12, and accordingly, the greater the rotational acceleration of the magnetic member 12. Given the same acceleration or deceleration time, the rotational speed of the magnetic member 12 increases or decreases more rapidly.

[0034] Optionally, the switching frequency of the magnetic member 12 between rotation and braking is positively correlated with the switching frequency of the current direction. In a specific application, the rotation or braking of the magnetic member 12 can be controlled by controlling the switching of the current direction of the coil 14. It can be understood that the switching of the magnetic member 12 between rotation and braking is completed once the current of the coil 14 completes a direction switch. Therefore, the switching frequency of the magnetic member 12 between rotation and braking is positively correlated with the switching frequency of the current direction.

[0035] Optionally, the rotation amplitude of the magnetic part 12 is related to the switching frequency of the current direction and the current magnitude. The rotation amplitude of the magnetic part 12 is the amplitude of the magnetic part 12 in the process from starting to rotate to completing braking. The rotation amplitude of the magnetic part 12 is negatively correlated with the switching frequency of the current direction in the coil 14, and positively correlated with the magnitude of the current in the coil 14. In a specific application, when the magnitude of the current in the coil 14 is constant, the faster the switching frequency of the current direction in the coil 14, the smaller the rotation amplitude of the magnetic part 12. Similarly, when the switching frequency of the current direction in the coil 14 is constant, the greater the current in the coil 14, the greater the rotation amplitude of the magnetic part 12. In this way, by controlling the switching frequency of the current direction in the coil 14 and the magnitude of the current, the rotation amplitude of the magnetic part 12 can be controlled.

[0036] In the embodiment of the present application, the magnetic member 12 may include a first magnetic pole 121 and a second magnetic pole 122 that are arranged in a direction opposite to each other, wherein the first magnetic pole 121 and the second magnetic pole 122 are arranged in a direction perpendicular to the first direction (Z). In this way, during the rotation of the magnetic member 12, the distance between the first magnetic pole 121, the second magnetic pole and the coil 14 can be as close as possible to enhance the interaction force between the magnetic field of the coil 14 and the magnetic field of the magnetic member 12, thereby accelerating the rotation speed of the magnetic member 12 and increasing the driving efficiency of the coil 14 in driving the magnetic member 12 to rotate.

[0037] Specifically, the first magnetic pole 121 is one of the S pole and the N pole, and the second magnetic pole 122 is the other of the S pole and the N pole. The embodiment of the present application does not limit the specific polarities of the first magnetic pole 121 and the second magnetic pole 122.

[0038] Optionally, the center of the magnetic member 12 coincides with the center of the fixed shaft 11, so that the first magnetic pole 121 and the second magnetic pole 122 of the magnetic member 12 can be evenly distributed on both sides of the fixed shaft 11. During the process of the magnetic member 12 rotating around the fixed shaft 11, the distance between the first magnetic pole 121, the second magnetic pole 122 and the coil 14 on the side wall of the housing 10 is relatively close, thereby improving the accuracy of the coil 14 driving the magnetic member 12 to rotate.

[0039] In some optional embodiments of the present application, such as Figure 1 As shown, the motor may further include a position detection sensor 15, which is disposed in the accommodation space and opposite to the magnetic member 12. The position detection sensor 15 may be used to detect the position of the magnetic member 12, so as to adjust the magnitude and direction of the current in the coil 14 in real time according to the position of the magnetic member 12, thereby achieving precise control of the magnetic member 12.

[0040] In actual applications, during the starting phase of the motor, it is necessary to detect the initial position of the magnetic part 12 through the position detection sensor 15, so as to control the magnitude and direction of the starting current supplied to the coil 14 according to the initial position of the magnetic part 12, so as to achieve rapid starting of the magnetic part 12. During the rotation phase of the motor, it is also necessary to detect the real-time position of the magnetic part 12 through the position detection sensor 15, so as to adjust the magnitude and direction of the current supplied to the coil 14 according to the real-time position of the magnetic part 12, so that the magnetic part 12 can rotate in a preset area at a preset speed, thereby achieving reliable tactile feedback. During the braking phase of the motor, it is even more necessary to use the position detection sensor 15 to detect the real-time position of the magnetic part 12, so as to input a suitable braking current to the magnetic part 12 at the appropriate time, so as to achieve rapid braking of the magnetic part 12.

[0041] Optionally, the position detection sensor 15 is a Hall sensor, which is disposed on the side wall of the housing 10. In a specific application, the Hall sensor can obtain the real-time position of the magnetic part 12 by sensing the change in the magnetic field of the magnetic part 12. The Hall sensor has high precision (accuracy better than 1% within the operating temperature range), non-contact measurement, and excellent dynamic performance (response time less than 7μs, tracking speed exceeding 50A / μs, and can accurately capture transient peaks), which is far superior to the responsiveness of traditional mutual inductors. It also has a compact structure and occupies a small space, and does not affect the rotation of the magnetic part 12 and the mass block 13 within the accommodation space.

[0042] It should be noted that, in actual applications, the position detection sensor 15 may also be a photoelectric sensor such as an infrared sensor, and the embodiment of the present application does not limit the specific type of the position detection sensor 15 .

[0043] Reference Figure 2 , showing Figure 1 One of the working state diagrams of the motor shown in Figure 3 , showing Figure 1 The second schematic diagram of the working state of the motor shown.

[0044] like Figure 2 As shown, when it is necessary to drive the magnetic member 12 and the mass 13 to rotate, and the initial position of the magnetic member 12 is with the S pole at the lower left and the N pole at the upper right, the current in the lower left coil 14 can be controlled so that the polarity of the side of the lower left coil 14 facing the magnetic member 12 is the S pole. Similarly, the current in the upper left coil 14 can be regulated so that the polarity of the side of the coil 14 facing the magnetic member 12 is the N pole. According to the principle of "like poles repel, opposite poles attract" of the magnetic field, the interaction force generated by the lower left coil 14 and the magnetic member 12 pushes the magnetic member 12 upward, and the interaction between the upper left coil 14 and the magnetic member 12 attracts the magnetic member 12 upward. Similarly, with respect to the N pole of the magnetic member 12, the two coils 14 at the right ends are regulated to push the N pole downward. Therefore, the interaction between the four coils 14 and the magnetic member 12 all pushes the magnetic member 12 to move, thereby maximizing work efficiency.

[0045] like Figure 3 As shown, when the magnetic member 12 moves to Figure 3 In the case of the position shown, at this time, the S of the magnetic part 12 is at the upper left, and the N of the magnetic part 12 is at the lower right, the magnetic part 12 can be controlled to brake or even reverse. At this time, the current in the four coils 14 can be relatively Figure 2 The states shown reverse simultaneously, generating opposing magnetic fields. The four interacting forces reverse simultaneously, hindering the continued rotation of magnetic element 12 and mass 13. If the magnetic field persists after magnetic element 12 and mass 13 stop, magnetic element 12 rotates downward, initiating another starting process. Once downward, the magnetic field reverses, initiating another braking process. The alternating reciprocating of these two processes creates a pendulum-like oscillation, similar to the vibration effect of a linear motor.

[0046] Reference Figure 4 , showing Figure 1 The motion range diagram of the magnetic parts in the motor is shown in FIG. Figure 4 As shown, the light gray area shows the range of motion of the motor's magnetic element 12 and mass 13. By controlling the magnetic field generated by the four coils 14 and combining it with Hall sensors to detect the position of the magnetic element 12, the current state in the coils 14 can be adjusted in real time to control the swing of the magnetic element 12 within a specific range.

[0047] For example, if the magnetic part 12 and the mass block 13 swing in area ①, a vibration effect similar to that of a y-axis motor can be achieved; or if the magnetic part 12 and the mass block 13 swing in area ②, a vibration effect similar to that of an x-axis motor can be achieved. Of course, it is also possible to swing in areas ① and ② at the same time, or even to swing or rotate in any mode within the entire area in a stepless manner. In addition, due to Figure 4 The motor shown is installed in the xy plane, which can achieve the vibration effects of the x-axis and y-axis; if the motor is installed in the xz plane, it can achieve the vibration effects of the x-axis and z-axis; if it is installed in the yz plane, it can achieve the vibration effects of the y-axis and z-axis.

[0048] The movement mode of the magnetic part 12 and the mass block 13 of the motor described in the embodiment of the present application is to rotate around the fixed axis 11. Compared with the existing linear motor, the movement of the mover of the motor described in the present application is improved from one dimension to two dimensions, with more movement modes (such as swinging and vibration), and better vibration effect, which brings a richer and more diverse vibration experience to the user. More importantly, compared with the existing linear motor, the motor described in the embodiment of the present application cancels the operation of using springs to limit the movement of the mover, releasing more space for the movement of the mover. In this way, the volume of the mass block 13 can be maximized, the maximum vibration amount of the mass block 13 can be increased, and a stronger vibration experience can be brought to the user.

[0049] In some optional embodiments of the present application, the center of mass of the mass block 13 is set to deviate from the center of the fixed shaft 11, that is, the center of mass of the mass block 13 is set eccentrically, so that the eccentrically set mass block 13 will generate centrifugal force during rotation, thereby generating mechanical vibration.

[0050] In practical applications, the mass and position of the center of mass of the mass block 13 determine the amplitude and frequency of the motor. By adjusting the center of mass position and mass of the mass block 13, the vibration characteristics of the vibration motor can be changed to meet different working requirements.

[0051] Alternatively, as Figure 1 As shown, the surface of the mass block 13 facing the side wall of the housing 10 is a curved surface. As the mass block 13 rotates with the magnetic member 12, the curved surface of the mass block 13 can be tangent to the coil 14 disposed on the side wall of the housing 10. This maximizes the volume and mass of the mass block 13, increases the maximum vibration of the mass block 13 during rotation, and provides a more powerful vibration experience for the user.

[0052] It should be noted that, in practical applications, the shape of the mass block 13 may be semi-cylindrical, cylindrical, prismatic, etc., and the embodiment of the present application does not specifically limit the shape of the mass block 13 .

[0053] In some optional embodiments of the present application, the housing 10 is shaped like a polygonal prism, and the coil 14 is connected to a vertex of the polygonal prism housing 10. Because the vertex of the polygonal prism housing 10 is farthest from the center of the housing 10, placing the coil 14 at this vertex allows the coil 14 to interfere with the mass 13, where it is least likely to rotate. This maximizes the rotational diameter of the mass 13 and extends the rotational force arm. Consequently, the vibration of the mass 13 during rotation is maximized, resulting in the strongest vibration sensation.

[0054] It should be noted that, in the embodiment of the present application, only the case where the shell 10 is a quadrangular prism and the number of coils 14 is four, and the four coils 14 are respectively located at the four vertices of the quadrangular prism. In actual applications, the polygonal prism can also be a triangular prism, a hexagonal prism or an octagonal prism, etc. Correspondingly, the number of coils 14 can be three, six or eight, etc. The embodiment of the present application does not specifically limit the shape of the shell 10 and the number of coils 14. Moreover, the coil 14 can also be set at a position other than the vertices of the polygonal prism shell according to actual needs. For example, the coil 14 can be set at the edge position of the polygonal prism shell according to actual needs. The embodiment of the present application also does not specifically limit the setting position of the coil 14.

[0055] Optionally, multiple coils 14 are evenly spaced along the circumference of the magnetic part 10. In the process of the magnetic part 12 driving the mass block 13 to rotate, the magnetic field force generated by the evenly arranged coils 14 can act evenly on the magnetic part 12, thereby improving the vibration stability of the magnetic part 12 and the mass block 13.

[0056] It should be noted that the coils 14 may also be arranged non-uniformly in the circumferential direction of the housing 10 according to actual needs, and this embodiment of the present application does not specifically limit this.

[0057] In summary, the motor described in the embodiments of the present application may have at least the following advantages:

[0058] In an embodiment of the present application, the magnetic part can be rotatably connected to the fixed shaft, and the plurality of coils are arranged at intervals with the fixed shaft as the center. When the coil is energized, electromagnetic induction can be generated between the coil and the magnetic part to drive the magnetic part to rotate or brake around the fixed shaft. In a specific application, by controlling the coil current and the current direction, the rotation speed and rotation direction of the magnetic part in different areas of the accommodating space can be controlled, so that the magnetic part generates different vibration modes within its rotation plane, giving the user a richer vibration experience. In this way, in the case where the electronic device is used in an electronic device, since the magnetic part of the motor can generate different vibration modes in multiple directions of its rotation plane, the operation of setting up multiple linear motors in the electronic device can be avoided, which not only reduces the structural complexity of the electronic device, but also provides more space for the layout of other components in the electronic device.

[0059] An embodiment of the present application further provides an electronic device, which may include but is not limited to at least one of a mobile phone, a tablet computer, and a wearable device. The embodiment of the present application may not limit the specific type of the electronic device.

[0060] In an embodiment of the present application, the electronic device may specifically include the motor described in any of the above embodiments, and the housing of the motor may be connected to the device body of the electronic device. During the reciprocating motion of the magnetic member and mass in the motor, the reciprocating motion of the mass can be transmitted to the device body of the electronic device through the housing, thereby causing the electronic device to vibrate or oscillate, which is transmitted to the user to provide tactile feedback.

[0061] In a specific application, since the magnetic part of the motor in the electronic device can be rotatably connected to the fixed axis, a plurality of coils can be arranged at intervals along the circumference of the shell, and the coils and the magnetic part are arranged at intervals along the radial direction of the shell. When the coil is energized, electromagnetic induction can be generated between the coil and the magnetic part to drive the magnetic part to rotate around the fixed axis. In a specific application, by controlling the size and current of the coil, the rotation speed and rotation direction of the magnetic part in different areas of the accommodating space can be controlled, so that the magnetic part generates different vibration modes within its rotation plane, giving the user a richer vibration experience. In this way, in the case where the electronic device is used in an electronic device, since the magnetic part of the motor can generate different vibration modes in multiple directions of its rotation plane, the operation of setting up multiple linear motors in the electronic device can be avoided, which not only reduces the structural complexity of the electronic device, but also provides more space for the layout of other components in the electronic device.

[0062] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A motor, characterized in that: The motor comprises: A housing (10), wherein the housing (10) has a receiving space; a fixed shaft (11), arranged in the accommodating space along a first direction (Z) and connected to the housing (10); a magnetic member (12), the magnetic member (12) being rotatably connected to the fixed shaft (11); A mass block (13), the mass block (13) being connected to the magnetic member (12); and a plurality of coils (14) disposed in the accommodating space and connected to the side wall of the housing (10), wherein the plurality of coils (14) are spaced apart with the fixed shaft (11) as the center, and the coils (14) are used to drive the magnetic member (12) to rotate or brake around the fixed shaft (11) when powered.

2. The motor according to claim 1, characterized in that The motor further comprises a control module, the coil (14) being electrically connected to the control module, and the control module being used to input current to the coil (14); The coil (14) is used to drive the magnetic member (12) to rotate around the fixed axis (11) when receiving a first current input by the control module, and to drive the magnetic member (12) to brake when receiving a second current input by the control module; The direction of the first current is opposite to the direction of the second current.

3. The motor according to claim 2, characterized in that The switching frequency of the magnetic member (12) between rotation and braking is positively correlated with the switching frequency of the current direction.

4. The motor according to claim 2, characterized in that The rotation amplitude of the magnetic member is related to the switching frequency of the current direction and the magnitude of the current.

5. The motor according to claim 1, characterized in that The plurality of coils (14) are evenly spaced apart along the circumference of the housing (10).

6. The motor according to claim 1, characterized in that The motor further comprises a position detection sensor (15), the position detection sensor (15) being arranged in the accommodation space and opposite to the magnetic member (12), and the position detection sensor being used to detect the position of the magnetic member.

7. The motor according to claim 1, characterized in that The center of mass of the mass block (13) is arranged to deviate from the center of the fixed axis (11).

8. The motor according to claim 7, characterized in that The surface of the mass block (13) facing the side wall of the housing (10) is a curved surface.

9. The motor according to claim 1, characterized in that The shell (10) is in the shape of a polygonal column, and the coil (14) is connected to the top corner of the polygonal column shell (10).

10. An electronic device, characterized in that: The electronic device comprises: the motor according to any one of claims 1 to 9.

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