Vibration device and electronic device

Abstract

This utility model discloses a vibration device and electronic device, relating to the field of vibration device technology. The vibration device includes at least one vibration module, which includes a stator assembly, a rotating assembly, and a braking part. One of the stator assembly and the rotating assembly has a first magnet and a second magnet spaced apart along a first direction, with an arc-shaped magnetic guide plate between the first magnet and the second magnet. The other of the stator assembly and the rotating assembly includes a coil. The rotation axis of the rotating assembly is concentric with the center of the arc-shaped magnetic guide plate. The coil is located between the first magnet and the second magnet and surrounds the arc-shaped magnetic guide plate. The rotating assembly has an impact structure. The braking part is located along the rotation path of the rotating assembly, allowing the rotating assembly to rotate to the braking part position so that the impact structure impacts the braking part, generating a force. The vibration device and electronic device of this utility model have high torque and strong vibration force.

Description

Technical Field

[0001] This utility model relates to the field of vibration device technology, and in particular to a vibration device and electronic equipment. Background Technology

[0002] Traditional vibration devices generate the illusion of a force "as if it were moving in a certain direction" by continuously producing asymmetrical vibrations; this type of vibration is also known as anisotropic vibration. Currently, there are two methods to achieve this sense of force: one is to input an asymmetrical signal into a linear resonator and use human senses to create an illusion; the other is to generate a sense of force by rotating an unbalanced rotating component and then rapidly braking the rotating component. However, existing anisotropic vibration devices usually have limited torque, which limits the rotational speed of the rotating component and affects the sense of force from the vibration device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a vibration device and electronic device with large torque and strong vibration force.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: On one hand, this utility model provides a vibration device, including at least one vibration module, the vibration module comprising: Stator assembly, rotating assembly and braking unit; One of the stator assembly and the rotating assembly is provided with a first magnet and a second magnet at a distance along a first direction, and an arc-shaped magnetic guide plate is provided between the first magnet and the second magnet; The stator assembly and the rotating assembly each include a coil. The rotation axis of the rotating assembly is concentric with the center of the arc-shaped magnetic guide plate. The coil is located between the first magnet and the second magnet and surrounds the arc-shaped magnetic guide plate. The rotating assembly is provided with an impact structure. The braking part is located on the rotation path of the rotating assembly, and the rotating assembly can rotate to the position of the braking part so that the impact structure impacts the braking part to generate a force.

[0005] In some embodiments of this invention, the stator assembly includes the first magnet and the second magnet, and the rotating assembly includes the coil.

[0006] In some embodiments of this utility model, a first magnetic yoke is provided on the side of the first magnet away from the arc-shaped magnetic guide plate, and the first magnet is fixed to the first magnetic yoke; a second magnetic yoke is provided on the side of the second magnet away from the arc-shaped magnetic guide plate, and the second magnet is fixed to the second magnetic yoke; both ends of the arc-shaped magnetic guide plate are connected to the first magnetic yoke and the second magnetic yoke; and the rotating shaft of the rotating assembly is rotatably connected to the first magnetic yoke and the second magnetic yoke.

[0007] In some embodiments of this utility model, the rotating assembly further includes a coil support, the coil is disposed on the coil support, and the coil support is a non-magnetic structure, wherein: The coil support is connected to the impact structure; Alternatively, the coil support and the impact structure can be designed as a single unit.

[0008] In some embodiments of this utility model, the coil support includes a connecting plate and two clamping plates, the rotating shaft is connected to the connecting plate, the two ends of the connecting plate are connected to the two clamping plates, and the coil is disposed between the two clamping plates.

[0009] In some embodiments of this utility model, the rotating assembly further includes a mass block located on the side of the coil away from the rotating shaft, and the vibration module further includes a spiral spring located on the side of the first magnetic yoke away from the arc-shaped magnetic guide plate, with one end of the spiral spring fixed to the first magnetic yoke and the other end fixed to the mass block.

[0010] In some embodiments of this utility model, one end of the spiral spring is fixed to the first magnetic yoke by a fixing block, the fixing block is concentrically arranged with the rotating shaft, and the fixing block is provided with a insertion groove for accommodating the end of the spiral spring.

[0011] In some embodiments of this utility model, both the first magnet and the second magnet are magnetized along the first direction but in opposite directions; And / or, both the first magnet and the second magnet are arc-shaped and concentrically arranged with the center of the arc-shaped magnetic guide plate; And / or, at least one of the two surfaces of the braking part and the impact structure that collide with each other is provided with a buffer; And / or, the vibration module further includes a housing, the adjacent side walls of which form the braking portion.

[0012] In some embodiments of this utility model, the vibration device includes at least two vibration modules, wherein the at least two vibration modules are arranged axially symmetrically, and the rotation directions of the rotation components of the two vibration modules are opposite. Alternatively, the vibration device may include at least two vibration modules, wherein the at least two vibration modules are arranged in a centrally symmetrical manner, the rotation directions of the rotating components of the two vibration modules are the same, and they can simultaneously strike the corresponding braking parts to generate a rotational force.

[0013] On the other hand, this utility model provides an electronic device including the above-mentioned vibration device.

[0014] This utility model has the following beneficial effects: The vibration device and electronic device of this utility model embodiment include at least one vibration module. One of the stator assembly and the rotating assembly is provided with a first magnet and a second magnet at intervals along a first direction. An arc-shaped magnetic guide plate is provided between the first magnet and the second magnet, so that the magnetic field generated by the first magnet and the second magnet is directionally conducted along the arc-shaped magnetic guide plate. The other of the stator assembly and the rotating assembly includes a coil, which is located between the first magnet and the second magnet and surrounds the arc-shaped magnetic guide plate. Compared with the traditional open magnetic circuit, this utility model can reduce the energy loss caused by magnetic field leakage by setting the first magnet and the second magnet and the coil surrounding the arc-shaped magnetic guide plate. This allows the coil to cut the magnetic field lines to the maximum extent and generate a larger rotational torque under the same current. Therefore, the torque of the rotating assembly is increased while the current remains unchanged, and the overall vibration force of the vibration module is improved. The stator assembly, the rotating assembly and the braking part are compactly arranged around the center of the arc-shaped magnetic guide plate, resulting in a small overall size and convenient use. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an overall structural diagram of the vibration device according to an embodiment of the present utility model, wherein (a) is a front view and (b) is a perspective view; Figure 2 This is an exploded structural diagram of the vibration device according to an embodiment of the present invention; Figure 3 This is a schematic diagram showing the magnetization direction and current direction of the vibration module in this embodiment of the present invention; Figure 4 This is an overall structural diagram of the vibration module in the embodiment of this utility model, wherein (a) is a top view, (b) is a top view after removing the spiral spring, and (c) is a sectional view; Figure 5 The diagram shows the working state of the vibration device according to an embodiment of the present invention, wherein (a) is limit state 1, (b) is the natural state, and (c) is limit state 2.

[0016] Figure label: 100. Vibration device; 101. Vibration module. 1. Stator assembly; 11. First magnet; 12. Second magnet; 13. Arc-shaped magnetic guide plate; 14. First yoke; 15. Second yoke; 16. Bearing. 2. Rotating assembly; 21. Coil; 22. Shaft; 23. Coil bracket; 231. Connecting plate; 232. Clamping plate; 24. Mass block. 3. Buffer components 4. Spiral spring, 5. Fixing block; 51. Insertion slot; 6. Outer shell; 61. First outer shell; 611. Top wall; 612. First side wall; 62. Second outer shell; 621. Bottom wall; 622. Second side wall. A. Magnetization direction, B. Current direction, F. Impact force of rotating component. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] On the one hand, this utility model embodiment provides a vibration device 100, such as Figure 1-5 As shown, the device includes at least one vibration module 101, which includes a stator assembly 1, a rotating assembly 2, and a braking part. One of the stator assembly 1 and the rotating assembly 2 is provided with a first magnet 11 and a second magnet 12 spaced apart along a first direction, and an arc-shaped magnetic guide plate 13 is provided between the first magnet 11 and the second magnet 12. The other of the stator assembly 1 and the rotating assembly 2 includes a coil 21. The rotating shaft 22 of the rotating assembly 2 is concentrically arranged with the center of the arc-shaped magnetic guide plate 13. The coil 21 is located between the first magnet 11 and the second magnet 12 and is arranged around the arc-shaped magnetic guide plate 13. The rotating assembly 2 is provided with an impact structure. The braking part is located in the rotation path of the rotating assembly 2. The rotating assembly 2 can be rotated to the position of the braking part so that the impact structure impacts the braking part to generate a force.

[0019] When in operation, the coil 21 generates a magnetic field when energized. This magnetic field interacts with the constant magnetic fields of the first magnet 11 and the second magnet 12. The constant magnetic fields generated by the first magnet 11 and the second magnet 12 then apply an Ampere force to the coil 21, thereby driving the rotating assembly 2 to rotate. When the driving electrical signal of the coil 21 is an alternating signal (current with a periodically changing direction), the direction of the magnetic field lines of the magnetic field generated by the coil 21 changes periodically, causing the direction of the interacting magnetic force to change periodically as well. This changes the rotation direction of the rotating assembly 2, causing it to rotate reciprocally so that the impact structure periodically impacts the braking part, generating a periodic vibration force.

[0020] The vibration device 100 of this embodiment includes at least one vibration module 101. A first magnet 11 and a second magnet 12 are spaced apart along a first direction in one of the stator assembly 1 and the rotating assembly 2. An arc-shaped magnetic guide plate 13 is provided between the first magnet 11 and the second magnet 12, so that the magnetic field generated by the first magnet 11 and the second magnet 12 is directionally conducted along the arc-shaped magnetic guide plate 13. The other of the stator assembly 1 and the rotating assembly 2 includes a coil 21, which is located between the first magnet 11 and the second magnet 12 and surrounds the arc-shaped magnetic guide plate 13. Compared to traditional open magnetic circuits, this invention uses a first magnet 11 and a second magnet 12, with the coil 21 surrounding the arc-shaped magnetic guide plate 13. This reduces energy loss caused by magnetic field leakage, maximizes the cutting of magnetic field lines by the coil 21, and generates a larger rotational torque under the same current. Therefore, the torque of the rotating component 2 is increased while the current remains constant, improving the overall vibration force of the vibration module 101. The stator component 1, the rotating component 2, and the braking part are compactly arranged around the center of the arc-shaped magnetic guide plate 13, resulting in a small overall size and convenient use.

[0021] In some embodiments of this invention, the stator assembly 1 may include a first magnet 11 and a second magnet 12, and the rotating assembly 2 may include a coil 21. In this case, the coil 21, as part of the rotating assembly 2, can rotate around the axis 22 of the rotating assembly 2. Alternatively, the stator assembly 1 may include the coil 21, and the rotating assembly 2 may include the first magnet 11 and the second magnet 12, that is, the first magnet 11 and the second magnet 12, as parts of the rotating assembly 2, can rotate around the axis 22 of the rotating assembly 2. This invention does not limit this, and the positions of the coil 21 and the first magnet 11 and the second magnet 12 can be interchanged according to actual needs. The following description will use the rotating assembly 2 including the coil 21 as an example.

[0022] In some embodiments of this utility model, such as Figure 2-4As shown, a first magnetic yoke 14 may be provided on the side of the first magnet 11 away from the arc-shaped magnetic guide plate 13, and the first magnet 11 is fixed to the first magnetic yoke 14; a second magnetic yoke 15 may be provided on the side of the second magnet 12 away from the arc-shaped magnetic guide plate 13, and the second magnet 12 is fixed to the second magnetic yoke 15. Both ends of the arc-shaped magnetic guide plate 13 are connected to the first magnetic yoke 11 and the second magnetic yoke 12. The rotating shaft 22 of the rotating assembly 2 is rotatably connected to the first magnetic yoke 14 and the second magnetic yoke 15. In a specific implementation, the rotating shaft 22 of the rotating assembly 2 can be connected to the first magnetic yoke 14 and the second magnetic yoke 15 through a bearing 16. The first magnet 11 can be fixed to the first magnetic yoke 14 by adhesive bonding, and the second magnet 12 can be fixed to the second magnetic yoke 15 by adhesive bonding. In this way, the installation and fixation of the first magnet 11 and the second magnet 12 are well achieved. At the same time, both ends of the arc-shaped magnetic guide plate 13 are connected to the first magnetic yoke 14 and the second magnetic yoke 15 (connected by magnetic connectors, specifically using conventional technology in the field). Under the action of the arc-shaped magnetic guide plate 13 and the first magnetic yoke 14, the magnetic field that the first magnet 11 might have diffused outward is constrained between the two, reducing magnetic leakage and enhancing the magnetic field. Similarly, the magnetic field between the arc-shaped magnetic guide plate 13 and the second magnetic yoke 15 is also enhanced, further enhancing the driving force on the coil 21, thereby further enhancing the torque of the coil 21 and the overall vibration force of the vibration module 101.

[0023] In some embodiments of this utility model, the rotating component 2 may further include a coil support 23, with the coil 21 disposed on the coil support 23, which is a non-magnetic structure. The coil support 23 is made of a non-magnetic material, such as wood, plastic, ceramic, rubber, stainless steel, copper, aluminum, titanium, etc., and is not limited thereto. By using a non-magnetic material to make the coil support 23, the coil support 23 is not subjected to the magnetic force of the constant magnetic field generated by the first magnet 11 and the second magnet 12. There is no static magnetic torque between the rotating component 2 and the stator component 1. The stator component 1 only applies a magnetic force to the rotating component 2 when the coil 21 is energized. With this configuration, when the current in the coil 21 remains constant, the rotational force applied to the rotating component 2 remains constant, and the rotating component 2 can rotate continuously with a constant torque. It is easy to drive the rotating component 2 to rotate at a higher speed by increasing the current or selecting a stronger first magnet 11 and a stronger second magnet 12, thereby generating a strong and clear force when impacting the braking part.

[0024] Therefore, it is understood that in the technical solution of this application, the vibration module 101 includes a cooperating stator assembly 1 and a rotating assembly 2. The stator assembly 1 and the rotating assembly 2 are driven to rotate by the principle of electromagnetic induction and Ampere force. A first magnet 11 and a second magnet 12 are provided on the stator assembly 1. The rotating assembly 2 includes a coil support 23 and a coil 21 fixed on the coil support 23. The coil 21 is located in the constant magnetic field of the first magnet 11 and the second magnet 12. With this arrangement, when the coil 21 is energized, the constant magnetic field generated by the first magnet 11 and the second magnet 12 will apply an Ampere force to the coil 21, thereby driving the rotating assembly 2 to rotate. When the rotating assembly 2 rotates to its limit position, it will collide with the braking part provided on the stator assembly 1 to achieve asymmetrical vibration and generate a linear force. In this case, an alternating current with a continuously changing current direction can be input into the coil 21 to generate a changing magnetic field and drive the rotating assembly 2 to rotate back and forth to repeatedly strike the braking part. At the same time, the coil support 23 of the rotating component 2 is a non-magnetic structure. The coil support 23 will not be affected by the magnetic force generated by the first magnet 11 and the second magnet 12. The rotating component 2 will not be affected by the static magnetic torque. At this time, the driving force of the rotating component 2 is only the Ampere force on the coil 21. When the current in the coil 21 remains constant, the rotational force applied to the rotating component 2 remains constant. The rotating component 2 can rotate continuously with a constant torque. It is easy to drive the rotating component 2 to rotate at a higher speed by increasing the current or selecting the first magnet 11 and the second magnet 12 with stronger magnetic force, thereby generating a strong and clear force when impacting the braking part.

[0025] Furthermore, the vibration device 100 may be provided with two or more vibration modules 101, and the vibration device 100 may generate a rotational force or a stronger linear force through the force sensation combination of different vibration modules 101.

[0026] In some embodiments of this utility model, such as Figure 2 As shown, the coil support 23 may include a connecting plate 231 and two clamping plates 232. A rotating shaft 22 is connected to the connecting plate 231, and both ends of the connecting plate 231 are connected to the two clamping plates 232. The coil 21 is disposed between the two clamping plates 232. In a specific implementation, the connecting plate 231 and the two clamping plates 232 can be an integral structure. The rotating shaft 22 can be connected to the inner side or the outer side of the connecting plate 231. In the embodiment shown in the figure, a connecting block (not shown) is installed on the inner side of the connecting plate 231, and the rotating shaft 22 is installed in the connecting block. In this way, the connecting plate 231 and the two clamping plates 232 together form a robust rigid frame. The rotating shaft 22 is installed at the center of the connecting plate 231, which makes torque transmission efficient and the structure stress balanced.

[0027] In some embodiments of this invention, the rotating component 2 may further include a mass block 24 located on the side of the coil 21 away from the rotating shaft 22. The vibration module 101 also includes a spiral spring 4 located on the side of the first magnetic yoke 14 away from the arc-shaped magnetic plate 13. One end of the spiral spring 4 is fixed to the first magnetic yoke 14, and the other end is fixed to the mass block 24. Thus, the mass block 24 is located on the side of the coil 21 away from the rotating shaft 22, increasing the mass and inertia of the rotating component 2, increasing the impact force, and shifting the center of gravity of the rotating component 2 away from the rotating shaft 22, making the rotating component 2 easier to drive, thereby improving the rotational torque of the rotating component 2 and the vibration force of the vibration module 101. The spiral spring 4 not only uses its spiral shape to prevent excessive stress on the spring sheet when the rotating component 2 swings at large angles, ensuring the service life of the spring, but also allows the rotating component 2 to stop at a fixed position (initial position), achieving resonance through a suitable driving frequency, thus improving the vibration sensation. In specific implementations, the mass block 24 may be made of a heavy metal such as tungsten.

[0028] In some embodiments of this utility model, the coil support 23 can be connected to the impact structure. Alternatively, as shown in the embodiment in the figure, the coil support 23 and the impact structure are designed as a single unit. Specifically, the mass block 24 is disposed between the two clamping plates 232, and the mass block 24 and the two clamping plates 232 form an impact structure on both sides along the swing direction of the rotating component 2. In this way, the force transmission is more direct, and the overall strength can be improved. By using the mass block 24 and the two clamping plates 232 to form an impact structure on both sides along the swing direction of the rotating component 2, there is no need to add a separate impact structure, which further reduces the volume of the rotating component 2 and lowers the cost.

[0029] In some embodiments of this utility model, one end of the spiral spring 4 can be fixed to the first magnetic yoke 14 by a fixing block 5. The fixing block 5 is concentrically arranged with the rotating shaft 22, and the fixing block 5 is provided with a insertion groove 51 for accommodating the end of the spiral spring 4. During installation, one end of the spiral spring 4 is temporarily placed on the mass block 24 in a preset initial position. Then, the rotation position / angle of the insertion groove 51 on the fixing block 5 is adjusted according to the angle of the other end of the spiral spring 4. After that, the fixing block 5 is fixed to the first magnetic yoke 14. Finally, both ends of the spiral spring 4 are fixed to the insertion grooves 51 of the mass block 24 and the fixing block 5, respectively. At this time, the spiral spring 4 is in a natural state without force. Thus, the rotatable and adjustable fixing block 5 absorbs the tolerance in the circumferential direction caused by the processing of the beginning and end of the spiral spring 4, so that the positions of the two ends of the spiral spring 4 can be correctly assembled. The fixing block 5 can be square, circular, or other shapes. This utility model does not limit this. In the embodiment shown in the figure, the fixing block 5 is circular.

[0030] In some embodiments of this utility model, such as Figure 3As shown, the first magnet 11 and the second magnet 12 can both be magnetized along the first direction but in opposite directions. Since the magnetization directions of the first magnet 11 and the second magnet 12 are opposite, the magnetic field force exerted on the coil 21 by the magnetic field generated by the first magnet 11 and the second magnet 12 is in the same direction. The force on the coil 21 increases, which increases the torque of the rotating component 2 and increases the rotation speed of the rotating component 2. This can increase the impact force when the rotating component 2 collides with the braking part and improve the vibration. Figure 3 In the diagram, A represents the magnetization direction of the magnet, and B represents the current direction of the coil 21. The effective portion of the coil consists of its two long sides (parallel to the magnet), resulting in a flatter structure that reduces the overall size. Both the first magnet 11 and the second magnet 12 can be arc-shaped and concentrically positioned with the center of the arc-shaped magnetic guide plate 13. This ensures a uniform distribution of the magnetic field along the rotation path of the rotating assembly 2, making the coil 21 more stable during rotation. At least one of the two surfaces where the braking part and the impact structure collide is provided with a buffer 3. Specifically, the buffer 3 can be a soft or elastic structure such as foam, airbag, or rubber. The buffer 3 can be provided on the braking part, the impact structure, or both. This avoids rigid collisions between the impact structure and the braking part, and the buffer 3 can buffer the impact force, preventing significant damage from repeated collisions between the impact structure and the braking part.

[0031] In some embodiments of this utility model, such as Figure 1-2 As shown, the vibration module 101 may further include a housing 6, with adjacent side walls of the housing 6 forming braking portions. In a specific implementation, the housing 6 includes a first housing 61 and a second housing 62. The first housing 61 includes a top wall 611 and a pair of adjacent first side walls 612, and the second housing 62 includes a bottom wall 621 and a pair of adjacent second side walls 622. The adjacent second side walls 622 serve as braking portions. Thus, by utilizing the adjacent side walls (i.e., adjacent second side walls 622) of the housing 6 to form braking portions, a separate, independent braking portion is unnecessary, reducing the number of components used in the vibration module 101 and lowering costs.

[0032] In some embodiments of the present invention, the vibration device 100 includes at least two vibration modules 101, wherein the at least two vibration modules 101 are arranged axially symmetrically, and the rotation directions of the rotation components 2 of the two vibration modules 101 are opposite. Figure 5 The embodiment shown is this structure. Figure 5In the diagram, (a) represents limit state 1, (b) represents the natural state, and (c) represents limit state 2. In limit state 1, the motor force cancels out, resulting in no overall force. In limit state 2, the motor force is downward, resulting in an overall downward force. The rotating component 2 vibrates cyclically, and the overall force feels downward. Specifically, the two mutually perpendicular limiting surfaces in each vibration module 101 can be defined as the first limiting surface and the second limiting surface. When the two vibration modules 101 are arranged axially symmetrically, the first limiting surfaces of the two vibration modules 101 face the same direction, and the two second limiting surfaces are arranged opposite to each other or back to back. Furthermore, the rotation directions of the rotating components 2 of the two vibration modules 101 are opposite. With this arrangement, when the two rotating components 2 simultaneously strike the corresponding first limiting surface, the centrifugal force of the rotating component 2 disappears, leaving only the braking force in the normal direction of the first limiting surface. The braking forces in the two vibration modules 101 are in opposite directions, causing the two braking forces to cancel each other out, resulting in no or minimal force felt in the normal direction of the second limiting surface. When the two rotating components 2 simultaneously strike the corresponding second limiting surface, the external manifestation is the resultant force of the two braking forces, generating a downward linear force.

[0033] Alternatively, the vibration device 100 includes at least two vibration modules 101, wherein the at least two vibration modules 101 are arranged centrally symmetrically, the rotation directions of the rotating components 2 of the two vibration modules 101 are the same, and they can simultaneously impact the corresponding braking parts to generate a rotational force. In this case, the surfaces of the two braking parts in each vibration module 101 that act with the buffer 3 are defined as a first limiting surface and a second limiting surface, respectively, wherein the first limiting surfaces of the two vibration modules 101 face opposite directions, and the two second limiting surfaces also face opposite directions; and the rotation directions of the rotating components 2 of the two vibration modules 101 are the same. With this arrangement, when the rotating components 2 of the two vibration modules 101 simultaneously impact the corresponding first limiting surface or simultaneously impact the corresponding second limiting surface, since the braking forces of the two vibration devices 1 are opposite and not on the same straight line, the vibration device 100 can generate a rotational force.

[0034] On the other hand, this embodiment of the invention provides an electronic device including the aforementioned vibration device 100. The structure of the vibration device 100 is the same as described above, and will not be repeated here. The electronic device may be a controller, mobile phone, smart wearable device, virtual reality device, augmented reality device, mixed reality device, or extended reality device, etc.

[0035] The electronic device of this utility model embodiment includes a vibration device 100, which includes at least one vibration module 101. A first magnet 11 and a second magnet 12 are spaced apart along a first direction in one of the stator assembly 1 and the rotating assembly 2. An arc-shaped magnetic guide plate 13 is provided between the first magnet 11 and the second magnet 12, so that the magnetic field generated by the first magnet 11 and the second magnet 12 is directionally conducted along the arc-shaped magnetic guide plate 13. The other of the stator assembly 1 and the rotating assembly 2 includes a coil 21, which is located between the first magnet 11 and the second magnet 12 and surrounds the arc-shaped magnetic guide plate 13. Compared to traditional open magnetic circuits, this invention features a magnetic plate 13. By setting a first magnet 11 and a second magnet 12, and with the coil 21 surrounding the arc-shaped magnetic plate 13, energy loss due to magnetic field leakage is reduced. This allows the coil 21 to cut magnetic field lines to the maximum extent, generating a larger rotational torque under the same current. Therefore, the torque of the rotating component 2 is increased while the current remains constant, improving the overall vibration force of the vibration module 101. The stator component 1, rotating component 2, and braking unit are compactly arranged around the center of the arc-shaped magnetic plate 13, resulting in a small overall size and ease of use.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions 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 one or more embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration device, characterized in that, Includes at least one vibration module, the vibration module comprising: Stator assembly, rotating assembly and braking unit; One of the stator assembly and the rotating assembly is provided with a first magnet and a second magnet at a distance along a first direction, and an arc-shaped magnetic guide plate is provided between the first magnet and the second magnet; The stator assembly and the rotating assembly each include a coil. The rotation axis of the rotating assembly is concentric with the center of the arc-shaped magnetic guide plate. The coil is located between the first magnet and the second magnet and surrounds the arc-shaped magnetic guide plate. The rotating assembly is provided with an impact structure. The braking part is located on the rotation path of the rotating assembly, and the rotating assembly can rotate to the position of the braking part so that the impact structure impacts the braking part to generate a force.

2. The vibration device as described in claim 1, characterized in that, The stator assembly includes the first magnet and the second magnet, and the rotating assembly includes the coil.

3. The vibration device as described in claim 2, characterized in that, The first magnet has a first magnetic yoke on the side away from the arc-shaped magnetic guide plate, and the first magnet is fixed to the first magnetic yoke; the second magnet has a second magnetic yoke on the side away from the arc-shaped magnetic guide plate, and the second magnet is fixed to the second magnetic yoke; both ends of the arc-shaped magnetic guide plate are connected to the first magnetic yoke and the second magnetic yoke; the rotating shaft of the rotating assembly is rotatably connected to the first magnetic yoke and the second magnetic yoke.

4. The vibration device as described in claim 2, characterized in that, The rotating assembly further includes a coil support, the coil being disposed on the coil support, and the coil support being a non-magnetic structure, wherein: The coil support is connected to the impact structure; Alternatively, the coil support and the impact structure can be designed as a single unit.

5. The vibration device as described in claim 4, characterized in that, The coil support includes a connecting plate and two clamping plates. The rotating shaft is connected to the connecting plate, and both ends of the connecting plate are connected to the two clamping plates. The coil is disposed between the two clamping plates.

6. The vibration device as described in claim 3, characterized in that, The rotating assembly also includes a mass block located on the side of the coil away from the rotating shaft. The vibration module also includes a spiral spring located on the side of the first magnetic yoke away from the arc-shaped magnetic guide plate. One end of the spiral spring is fixed to the first magnetic yoke, and the other end is fixed to the mass block.

7. The vibration device as described in claim 6, characterized in that, One end of the spiral spring is fixed to the first magnetic yoke by a fixing block. The fixing block is concentric with the rotating shaft and has a slot for accommodating the end of the spiral spring.

8. The vibration device as described in claim 1, characterized in that, Both the first magnet and the second magnet are magnetized along the first direction but in opposite directions; And / or, both the first magnet and the second magnet are arc-shaped and concentrically arranged with the center of the arc-shaped magnetic guide plate; And / or, at least one of the two surfaces of the braking part and the impact structure that collide with each other is provided with a buffer; And / or, the vibration module further includes a housing, the adjacent side walls of which form the braking portion.

9. The vibration device as described in any one of claims 1 to 8, characterized in that, The vibration device includes at least two vibration modules, wherein the at least two vibration modules are arranged axially symmetrically, and the rotation directions of the rotation components of the two vibration modules are opposite. Alternatively, the vibration device may include at least two vibration modules, wherein the at least two vibration modules are arranged in a centrally symmetrical manner, the rotation directions of the rotating components of the two vibration modules are the same, and they can simultaneously strike the corresponding braking parts to generate a rotational force.

10. An electronic device, characterized in that, Includes the vibration device described in any one of claims 1 to 9.

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