Drive device, brush head and electric toothbrush

Abstract

The embodiment of the application discloses a driving device, a brush head and an electric toothbrush. The driving device comprises a first magnetic component and a second magnetic component. The first magnetic component comprises at least two magnetic pieces. The second magnetic component comprises at least two winding mechanisms. Corresponding winding mechanisms and magnetic pieces are arranged at intervals. The magnetic field direction of the winding mechanism can be changed by changing the current direction or current size in the winding mechanism, so that the corresponding magnetic piece or the winding mechanism itself moves in the same or opposite direction, and then the driving device can output multiple motion modes.

Description

Technical Field

[0001] This application relates to the field of motor devices, and more specifically, to a drive device, a brush head, and an electric toothbrush. Background Technology

[0002] In the field of related technologies, as people’s quality of life improves, they are paying more and more attention to oral health care, and electric toothbrushes are increasingly entering their homes. Electric toothbrushes typically use a motor to drive the brush head to rotate or vibrate to clean the user’s mouth. Summary of the Invention

[0003] This application provides a driving device designed to enable the brush head to output multiple motion modes in order to improve the cleaning effect of the brush head on the user's oral cavity.

[0004] This application provides a driving device, which includes a first magnetic component and a second magnetic component. The first magnetic component includes at least two magnetic elements spaced apart. The second magnetic component includes at least two winding mechanisms, which are positioned correspondingly to the magnetic elements and spaced apart. The winding mechanisms can generate a magnetic field and apply magnetic force to the magnetic elements through the magnetic field. When one of the magnetic elements or winding mechanisms is fixed, the other of the magnetic elements or winding mechanisms moves. Adjacent magnetic elements or winding mechanisms move in the same or different directions. The driving device has a preset plane, and the movement directions of different magnetic elements or winding mechanisms are parallel to the preset plane.

[0005] Based on the above embodiments, when the magnetic component is fixed, the direction of the magnetic field of the winding mechanism can be changed by changing the direction of the current in the winding mechanism, thereby causing the corresponding winding mechanism to move in the same or opposite directions. The amplitude of the movement of the winding mechanism can also be changed by changing the magnitude of the current in the winding mechanism, thereby realizing multi-mode output of the drive device. When the winding mechanism is fixed, the direction of the magnetic field of the winding mechanism can also be changed by changing the direction of the current in the winding mechanism, thereby causing the corresponding magnetic component to move in the same or opposite directions. The amplitude of the movement of the magnetic component can also be changed by changing the magnitude of the current in the winding mechanism, thus also realizing multi-mode output of the drive device.

[0006] In some embodiments, when the magnetic components move and the winding mechanism is fixed, the two magnetic components move in the same, opposite, or angled directions; when the winding mechanism moves and the magnetic components are fixed, the two winding mechanisms move in the same, opposite, or angled directions. When the directions of movement are the same, the range of motion of the magnetic components or the winding mechanism can be increased.

[0007] Based on the above embodiments, by changing the direction of the current in the corresponding winding mechanism, the corresponding magnetic components can achieve the same, opposite, or angled movement, or the corresponding winding mechanism itself can achieve the same, opposite, or angled movement, thereby enabling the magnetic components or the winding mechanism itself to achieve multi-angle movement.

[0008] In some embodiments, there are two magnetic elements and two winding mechanisms, and the two winding mechanisms drive the two magnetic elements in the same, opposite, or perpendicular directions.

[0009] In some embodiments, there are three magnetic components and three winding mechanisms. The three magnetic components are arranged sequentially along a preset direction. The winding mechanism in the middle drives the corresponding magnetic component in a direction parallel to the preset direction. The two winding mechanisms on both sides drive the corresponding magnetic components in the same or opposite directions and are perpendicular to the preset direction.

[0010] Based on the above embodiments, this arrangement allows the corresponding magnetic components to move along a preset direction and in a direction perpendicular to the preset direction, or to move in a mixture of the two directions, thereby increasing the movement trajectory of the magnetic components and enriching the movement output modes of the magnetic components.

[0011] In some embodiments, each winding mechanism includes an iron core and a winding, the iron core being disposed facing the magnetic element and spaced apart from the magnetic element; the winding is wound on the iron core; wherein the movement amplitude of the magnetic element can be adjusted by adjusting the magnitude of the current in the winding, and / or the driving direction of the magnetic element can be adjusted by adjusting the direction of the current in the winding.

[0012] In some embodiments, each iron core includes a support portion, a first magnetic pole portion, and two second magnetic pole portions. The first magnetic pole portion is disposed on the support portion, and a winding is wound around the periphery of the first magnetic pole portion. The two second magnetic pole portions are disposed on the support portion, and the two second magnetic pole portions and the first magnetic pole portion are disposed on the same surface of the support portion, and the two second magnetic pole portions are spaced apart from the first magnetic pole portion. The two second magnetic pole portions are respectively disposed on opposite sides of the first magnetic pole portion, and the polarity of the two second magnetic pole portions is the same, and the polarity of any second magnetic pole portion is opposite to the polarity of the first magnetic pole portion. Each magnetic element has two magnetic portions with opposite polarities, and the two magnetic portions are arranged one-to-one with the second magnetic pole portions. The driving direction of the winding mechanism on the magnetic element is the same as or opposite to the arrangement direction of the corresponding first magnetic pole portion and the two second magnetic pole portions.

[0013] Based on the above embodiments, since each magnetic component has two magnetic parts with opposite polarities, and the positions of the two magnetic parts correspond one-to-one with the second magnetic part, when the current direction in the winding changes, the magnetic field direction of the first magnetic part changes accordingly, so that the magnetic field direction of the two magnetic parts moves away from the support, thereby changing the direction of the magnetic force on the corresponding magnetic part, thus causing the magnetic component to move. Moreover, the change in the current in the winding will also change the magnitude of the magnetic force on the magnetic part, thereby changing the movement amplitude of the magnetic component, thus meeting the needs of different users.

[0014] In some embodiments, the second magnetic component further includes a carrier, with at least two winding mechanisms spaced apart on the same surface of the carrier, and a preset plane parallel to the surface of the carrier facing the magnetic component.

[0015] Based on the above embodiments, the winding mechanism is supported by a carrier to facilitate its installation.

[0016] In some embodiments, the first magnetic component further includes a connector disposed opposite to the carrier, and at least two magnetic elements disposed on the side of the connector facing the carrier.

[0017] Based on the above embodiments, magnetic components are connected by connectors so that the movement of the magnetic components can be output through the connectors, thereby improving the stability of the movement output of the first magnetic component and enabling the output of combined motion modes through the connectors to meet different user needs.

[0018] In some embodiments, the connector has a heat dissipation vent at the location corresponding to the magnetic component.

[0019] Based on the above embodiments, the heat dissipation vent facilitates heat dissipation for the magnetic components, and the heat dissipation vent can reduce the overall mass of the first magnetic component, thereby improving the kinetic energy transfer efficiency.

[0020] In some embodiments, the connector has a mounting groove on the side facing the carrier, a magnetic element is connected to the bottom of the mounting groove, and a heat dissipation vent is connected to the mounting groove.

[0021] Based on the above embodiments, the mounting slot facilitates the installation of magnetic components, thereby enabling the magnetic components to drive the connecting components to move, which can improve the stability of kinetic energy transmission and thus improve the efficiency of kinetic energy transmission.

[0022] In some embodiments, the heat dissipation vents are located at the bottom of the mounting groove and / or on the wall of the mounting groove.

[0023] In some embodiments, the carrier and / or connector are made of rigid material.

[0024] Based on the above embodiments, rigid material bearings and / or connectors can reduce energy loss caused by deformation of bearings and / or connectors, thereby improving energy transfer efficiency.

[0025] In some embodiments, the drive device further includes an elastic bracket connected to a carrier and a connector for supporting the connector, so that the winding mechanism and the magnetic element are spaced apart; wherein the elastic bracket can follow the magnetic element to twist in any driving direction, and the elastic bracket is rigid in the direction perpendicular to the plane of the driving direction.

[0026] Based on the above embodiments, by using an elastic bracket to support the carrier, the magnetic component can always be kept at a distance from the winding mechanism, preventing the magnetic component from contacting the winding mechanism and affecting the movement of the magnetic component or the winding mechanism. This ensures that when the direction or magnitude of the current in the winding mechanism is changed, the movement direction and amplitude of the winding mechanism or the magnetic component can be changed, thereby realizing multi-mode output of the drive device.

[0027] In some embodiments, the elastic support includes two support rods, four vertical rods, and two connecting rods. The two support rods are respectively connected to opposite sides of the load-bearing member. The two vertical rods are respectively connected to the opposite ends of one of the support rods, and the other two vertical rods are respectively connected to the opposite ends of the other support rod. The two ends of one connecting rod are respectively connected to the opposite ends of two of the vertical rods. The two connecting rods are respectively connected to the opposite ends of the other two vertical rods.

[0028] In some embodiments, each connecting rod has a receiving groove, and connecting ears are provided on opposite sides of the connector, with the two connecting ears corresponding to each other and snapping into the receiving groove.

[0029] Based on the above embodiments, the connecting rod is used to engage the connecting lug of the connector, thereby improving the connection stability between the connecting rod and the connector, and ensuring that the magnetic component is always spaced apart from the winding mechanism, so as to improve the kinetic energy output stability of the drive device.

[0030] In some embodiments, the drive unit further includes a controller, which is electrically connected to the winding mechanism.

[0031] Based on the above embodiments, the controller controls the direction and magnitude of the current in the winding mechanism, thereby changing the direction and amplitude of movement of the winding mechanism or magnetic components, and thus realizing multi-mode output of the drive device.

[0032] This application embodiment also provides a brush head, which includes a driving device, a housing, a brush plate, and bristles; the housing has a receiving cavity and an opening communicating with the receiving cavity, a winding mechanism is disposed in the receiving cavity and connected to the bottom wall of the receiving cavity; the brush plate is drivenly connected to at least two magnetic elements; the bristles are disposed on the side of the brush plate away from the magnetic elements; wherein, the magnetic elements are disposed in the receiving cavity and drivenly connected to the brush plate located at the opening, or, the magnetic elements are disposed in the receiving cavity and drivenly connected to the brush plate outside the receiving cavity through the opening.

[0033] Based on the above embodiments, the driving device is installed inside the housing of the brush head, and the winding mechanism in the driving device is connected to the bottom wall of the receiving cavity, and the magnetic component is connected to the brush plate. By changing the direction and magnitude of the current in the winding mechanism, the movement direction and amplitude of the magnetic component are changed, thereby enabling the brush bristles of the brush head to have multiple movement modes in the user's mouth, so as to improve the cleaning effect of the brush bristles on the user's mouth.

[0034] This application also provides an electric toothbrush, which includes a handle and a brush head, with the housing connected to the handle.

[0035] Based on the above embodiments, the handle is easy for the user to hold, so that the brush head can be moved in the user's mouth through the handle, thereby improving the cleaning effect of the brush head on the user's mouth.

[0036] This application also provides an electric toothbrush, which includes a drive unit, a handle, a transmission rod, and a brush head; the handle has a receiving cavity and an opening communicating with the receiving cavity, a winding mechanism is disposed in the receiving cavity and connected to the bottom wall of the receiving cavity; the transmission rod is drivenly connected to at least two magnetic elements; the brush head is disposed on the side of the transmission rod away from the magnetic elements; wherein, the magnetic elements are disposed in the receiving cavity and drivenly connected to the transmission rod located at the opening, or the magnetic elements are disposed in the receiving cavity and drivenly connected to the transmission rod outside the receiving cavity through the opening.

[0037] Based on the above embodiments, the drive device is installed inside the handle, and the movement of the drive device is transmitted to the brush head through the transmission rod, so that the brush head can clean the user's mouth. Moreover, since the drive device is set inside the handle, the volume of the brush head is reduced to adapt to the size of the user's mouth.

[0038] According to this application, a driving device includes: a first magnetic component and a second magnetic component. The first magnetic component includes at least two magnetic elements spaced apart. The second magnetic component includes at least two winding mechanisms, which are positioned correspondingly to the magnetic elements and spaced apart. The winding mechanisms can generate a magnetic field and apply magnetic force to the magnetic elements through the magnetic field. When one of the magnetic elements and the winding mechanisms is fixed, the other of the magnetic elements and the winding mechanisms can move. Adjacent magnetic elements or winding mechanisms can move in the same or different directions. The driving device has a preset plane, and the movement directions of different magnetic elements or winding mechanisms are parallel to the preset plane. When the magnetic component is fixed, changing the direction of the current within the winding mechanism alters the direction of the magnetic field, causing the corresponding winding mechanism to move in the same or opposite directions. Furthermore, changing the magnitude of the current within the winding mechanism changes the amplitude of its movement, enabling the drive device to output various motion modes. Similarly, when the winding mechanism is fixed, changing the direction of the current within it alters the direction of the magnetic field, causing the corresponding magnetic component to move in the same or opposite directions. Again, changing the magnitude of the current within the winding mechanism changes the amplitude of the magnetic component's movement, allowing the drive device to output various motion modes. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of the driving device in one embodiment of this application;

[0041] Figure 2 This is an exploded structural diagram of the driving device in one embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the winding mechanism in one embodiment of this application;

[0043] Figure 4 This is a schematic cross-sectional view of the brush head in one embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the toothbrush structure in one embodiment of this application;

[0045] Figure 6 As one embodiment of this application Figure 5Schematic diagram of the cross-sectional structure of line AA in the middle;

[0046] Figure 7 As one embodiment of this application Figure 6 Enlarged structural diagram at point B;

[0047] Figure 8 In another embodiment of this application Figure 5 A schematic diagram of the cross-sectional structure of line AA in the middle.

[0048] Reference numerals: 1. Drive device; 11. First magnetic component; 111. Magnetic element; 1111. Magnetic part; 112. Connector; 1121. Connecting ear; 1122. Heat dissipation vent; 1123. Mounting slot; 12. Second magnetic component; 121. Winding mechanism; 1211. Iron core; 1211A. Support part; 1211B. First magnetic pole part; 1211C. Second magnetic pole part; 1212. Winding; 122. Bearing member; 13. Elastic bracket; 131. Support rod; 132. Vertical rod; 133. Connecting rod; 1331. Receiving slot; 2. Brush head; 21. Housing; 211. Receiving cavity; 212. Opening; 22. Brush plate; 23. Brush bristles; 3. Electric toothbrush; 31. Handle; 32. Transmission rod; K. Preset plane. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0050] In the field of related technologies, as people’s quality of life improves, they are paying more and more attention to oral health care, and electric toothbrushes are increasingly entering their homes. Electric toothbrushes usually clean the user’s mouth by rotating or vibrating the brush head through a motor. However, rotation or vibration can only make the brush head present a single movement mode, which is difficult to achieve a better cleaning effect.

[0051] To address the aforementioned technical problems, the first aspect of this application proposes a driving device that enables the brush head to output multiple motion modes in order to improve the cleaning effect of the brush head on the user's oral cavity.

[0052] Please refer to Figure 1 and Figure 2This application provides a driving device 1, which includes a first magnetic component 11 and a second magnetic component 12. The first magnetic component 11 includes at least two spaced magnetic elements 111. The second magnetic component 12 includes at least two winding mechanisms 121, which are positioned correspondingly to the magnetic elements 111 and spaced apart. The winding mechanisms 121 can generate a magnetic field and apply magnetic force to the magnetic elements 111 through the magnetic field. When one of the magnetic elements 111 and the winding mechanism 121 is fixed, the other of the magnetic elements 111 and the winding mechanism 121 moves. Two adjacent magnetic elements 111 or winding mechanisms 121 move in the same or different directions. The driving device 111 has a preset plane K, and the movement directions of different magnetic elements 111 or winding mechanisms 121 are parallel to the preset plane K.

[0053] The first magnetic component 11 may include, but is not limited to, a magnet or other components that can be driven by the second magnetic component 12.

[0054] The second magnetic component 12 may include, but is not limited to, a coil or other component that can drive the first magnetic component 11 to move by changing the polarity of the second magnetic component 12 through changes in external conditions.

[0055] It is understandable that one of the second magnetic component 12 and the first magnetic component 11 can be fixed, while the other of the second magnetic component 12 and the first magnetic component 11 can provide power output.

[0056] The magnetic component 111 can be made of a permanent magnetic material, such as a magnet, and the shape of the magnetic component 111 can be strip, block, or plate.

[0057] The winding mechanism 121 can change the magnitude or direction of its magnetic field by altering the magnitude or direction of the current flowing through it, thereby changing the amplitude and direction of movement of the corresponding magnetic element 111. Since different winding mechanisms 121 can drive the corresponding magnetic element 111 to move in the same or different directions, the drive device 1 can achieve multi-motion mode output.

[0058] In this embodiment, when the magnetic component 111 is fixed, the direction of the magnetic field of the winding mechanism 121 is changed by changing the direction of the current in the winding mechanism 121, thereby causing the corresponding winding mechanism 121 to move in the same or opposite directions. The amplitude of the movement of the winding mechanism 121 can also be changed by changing the magnitude of the current in the winding mechanism 121, thereby realizing the multi-motion mode output of the drive device 1. When the winding mechanism 121 is fixed, the direction of the magnetic field of the winding mechanism 121 can also be changed by changing the direction of the current in the winding mechanism 121, thereby causing the corresponding magnetic component 111 to move in the same or opposite directions. The amplitude of the movement of the magnetic component 111 can also be changed by changing the magnitude of the current in the winding mechanism 121, thus realizing the multi-motion mode output of the drive device 1, thereby meeting different customer needs.

[0059] Please refer to Figure 1 and Figure 2 In one embodiment, when the magnetic component 111 moves and the winding mechanism 121 is fixed, the two magnetic components 111 move in the same, opposite, or angled directions, which can realize multi-angle movement of the magnetic component 111, thereby enabling the drive device 1 to output multi-angle movement outward.

[0060] Please refer to Figure 1 and Figure 2 In another embodiment, when the winding mechanism 121 moves and the magnetic component 111 is fixed, the movement directions of any two winding mechanisms 121 are the same, opposite, or set at an angle, which can realize the multi-angle movement of the winding mechanism 121 itself, and also enable the drive device 1 to output multi-angle movement outward.

[0061] It is understood that, in one embodiment, the number of magnetic elements 111 and winding mechanisms 121 can both be two. The two winding mechanisms 121 drive the two magnetic elements 111 in the same, opposite, or perpendicular directions. Thus, by changing the direction or magnitude of the current in the winding mechanism 121, the magnetic elements 111 can output multi-directional and multi-angle movements. When the movement directions are the same, the movement amplitude of the magnetic elements 111 or the winding mechanism 121 can be increased.

[0062] Please refer to Figure 1 and Figure 2 In one embodiment, the number of magnetic elements 111 and winding mechanisms 121 can both be three, with the three magnetic elements 111 arranged in a predetermined direction (e.g., Figure 1 The winding mechanism 121 in the middle is arranged sequentially along the X direction. The driving direction of the winding mechanism 121 to its corresponding magnetic element 111 is parallel to the preset direction. The two winding mechanisms 121 on both sides drive their corresponding magnetic elements 111 in the same or opposite directions and perpendicular to the preset direction (e.g., ...). Figure 1In the Y direction, the corresponding magnetic component 111 is driven to move along the X direction or the opposite direction of the X direction by the middle winding mechanism 121, and the corresponding two magnetic components 111 are driven to move along the Y direction or the opposite direction of the Y direction by the two winding mechanisms 121 on both sides, so that the first magnetic component 11 can finally output a more complex motion state to meet different customer needs.

[0063] Please refer to Figure 1-3 In one embodiment, each winding mechanism 121 includes an iron core 1211 and a winding 1212. The iron core 1211 is disposed facing the magnetic component 111 and spaced apart from it. The winding 1212 is wound around the iron core 1211. The movement amplitude of the magnetic component 111 can be adjusted independently by adjusting the magnitude of the current in the winding 1212. In another embodiment, the movement direction of the magnetic component 111 can also be adjusted independently by adjusting the direction of the current in the winding 1212. In the embodiments of this application, the movement amplitude of the magnetic component 111 can be adjusted by adjusting the magnitude of the current in the winding 1212, and the movement direction of the magnetic component 111 can be adjusted by adjusting the direction of the current in the winding 1212. The movement amplitude and movement direction of the magnetic component 111 can be adjusted simultaneously or separately, thereby enriching the movement output modes of the first magnetic component 11 and meeting different customer needs.

[0064] Please refer to Figure 2 and Figure 3In one embodiment, each iron core 1211 includes a support portion 1211A, a first magnetic pole portion 1211B, and two second magnetic pole portions 1211C. The first magnetic pole portion 1211B is disposed on the support portion 1211A, and a winding 1212 is wound around the periphery of the first magnetic pole portion 1211B. The two second magnetic pole portions 1211C are disposed on the support portion 1211A, and the two second magnetic pole portions 1211C and the first magnetic pole portion 1211B are disposed on the same surface of the support portion 1211A. The two second magnetic pole portions 1211C are spaced apart from the first magnetic pole portion 1211B. The two second magnetic pole portions 1211C are respectively disposed on opposite sides of the first magnetic pole portion 1211B. The two second magnetic pole portions 1211C have the same polarity, and the polarity of any second magnetic pole portion 1211C is opposite to the polarity of the first magnetic pole portion 1211B. Each magnetic element 111 has two magnetic portions 1111 with opposite polarities. The two magnetic portions 1111 are arranged one-to-one with the second magnetic pole portions 1211C. The driving direction of the winding mechanism 121 on the magnetic element 111 is the same as or opposite to the arrangement direction of the two second magnetic pole portions 1211C. The support portion 1211A, the first magnetic pole portion 1211B, and the second magnetic pole portion 1211C can all be made of metal. The shape of the support portion 1211A, the first magnetic pole portion 1211B, and the second magnetic pole portion 1211C can be rod-shaped. The connection method between the first magnetic pole portion 1211B and the second magnetic pole portion 1211C and the support portion 1211A can be, but is not limited to, screwing, snap-fitting, or gluing. In other embodiments, there are no specific limitations on the shape and material of the support portion 1211A, the first magnetic pole portion 1211B, and the second magnetic pole portion 1211C.

[0065] When current flows through the winding 1212, the winding 1212 generates a magnetic field. The direction of the magnetic field at the end of the first magnetic pole portion 1211B away from the support portion 1211A is different from the direction of the magnetic field at the ends of the two second magnetic pole portions 1211C away from the support portion 1211A. The two second magnetic pole portions 1211C apply magnetic force to the two magnetic portions 1111 of their corresponding magnetic components 111, causing the magnetic component 111 to move towards one of the second magnetic pole portions 1211C. When the current flowing through the winding 1212 is an alternating current, the winding 1212 generates an alternating magnetic field, causing the direction of the magnetic field of the two second magnetic pole portions 1211C to continuously change, allowing the magnetic component 111 to reciprocate. In other embodiments, the magnitude of the current flowing through the winding 1212 can also be changed, thereby changing the movement amplitude of the magnetic component 111 to meet different user needs.

[0066] Please refer to Figure 2 and Figure 3In one embodiment, the support portion 1211A is integrally formed with the first magnetic pole portion 1211B and the two second magnetic pole portions 1211C. The center line of the first magnetic pole portion 1211B is arranged parallel to the center lines of the two second magnetic pole portions 1211C, and the center line of the first magnetic pole portion 1211B along its length direction is orthogonal to the center line of the support portion 1211A along its length direction, thereby making the magnetic component 111 subjected to uniform force so as to facilitate the movement of the magnetic component 111.

[0067] Please refer to Figure 2 In one embodiment, the second magnetic component 12 further includes a support member 122. At least two winding mechanisms 121 are spaced apart on the same surface of the support member 122. A preset plane K is parallel to the surface of the support member 112 facing the magnetic component 111. The support member 122 supports the winding mechanisms 121 to facilitate their installation. The spaced winding mechanisms 121 can dissipate heat through the gaps, extending the service life of the drive device 1. The support member 122 can be plate-shaped and made of a rigid material, such as rigid plastic, to reduce the overall weight of the second magnetic component 12. The iron core 1211 in the winding mechanism 121 is connected to the support member 122, and the connection method can be, but is not limited to, screwing, snap-fitting, or adhesive bonding. In other embodiments, the shape and material of the support member 122 are not specifically limited and can be customized according to actual needs.

[0068] Please refer to Figure 2 In one embodiment, the first magnetic component 11 further includes a connector 112, which is disposed opposite to the support component 122. At least two magnetic components 111 are disposed on the side of the connector 112 facing the support component 122, so that the movement of the magnetic components 111 can be output through the connector 112, thereby stabilizing the movement output of the first magnetic component 11. Moreover, since the connector 112 connects all the magnetic components 111, the movement of each magnetic component 111 is different, which will cause the connector 112 to output a composite movement, thereby adapting to different user needs. The connector 112 can be plate-shaped, and the material of the connector 112 can be a rigid material, such as rigid plastic, to reduce the overall weight of the first magnetic component 11. The connection between the magnetic components 111 and the connector 112 can be, but is not limited to, screwing, snap-fitting, or gluing. In other embodiments, there are no specific limitations on the shape and material of the connector 112, and it can be customized according to actual needs.

[0069] Please refer to Figure 2In one embodiment, the connector 112 has a heat dissipation port 1122 at the position corresponding to the magnetic component 111. The heat dissipation port 1122 facilitates heat dissipation of the magnetic component 111, and the setting of the heat dissipation port 1122 can reduce the overall mass of the first magnetic component 11, thereby improving the kinetic energy transmission efficiency.

[0070] Please refer to Figure 2 In one embodiment, the connector 112 has a mounting groove 1123 on the side facing the support member 122, and the magnetic member 111 is connected to the bottom of the mounting groove 1123, so that the magnetic member 111 can drive the connector 112 to move, which can improve the stability of kinetic energy transmission and thus improve the kinetic energy transmission efficiency. The heat dissipation port 1122 is connected to the mounting groove 1123 so as to dissipate heat from the magnetic member 111 using the heat dissipation port 1122.

[0071] Please refer to Figure 1 and Figure 2 In one embodiment, the drive device 1 further includes an elastic bracket 13, which is connected to the support member 122 and the connector 112, and is used to support the connector 112 so that the winding mechanism 121 and the magnetic member 111 are spaced apart to prevent the magnetic member 111 from contacting the winding mechanism 121. This ensures that the movement of the magnetic member 111 or the winding mechanism 121 is not disturbed, and that the movement direction or amplitude of the winding mechanism 121 or the magnetic member 111 can be changed when the current direction or current magnitude in the winding mechanism 121 is changed, thereby realizing the multi-motion mode output of the drive device 1. The elastic bracket 13 can follow the magnetic member 111 to twist in any driving direction, and the elastic bracket 13 is rigid in the direction perpendicular to the plane of the driving direction.

[0072] Please refer to Figure 1 and Figure 2In one embodiment, the elastic support 13 includes two support rods 131, four vertical rods 132, and two connecting rods 133. The two support rods 131 are respectively connected to opposite sides of the bearing member 122. The two vertical rods 132 are respectively connected to the opposite ends of one support rod 131, and the other two vertical rods 132 are respectively connected to the opposite ends of the other support rod 131. The two ends of one connecting rod 133 are respectively connected to the ends of two vertical rods 132 that are away from the support rods 131, and the two ends of the other connecting rod 133 are respectively connected to the ends of the other two vertical rods 132 that are away from the support rods 131. The two connecting rods 133 are respectively connected to opposite sides of the connecting member 112. The connection methods between the support rods 131 and the vertical rods 132, and between the vertical rods 132 and the connecting rods 133, can be, but are not limited to, screwing, snap-fitting, or adhesive bonding. In this embodiment, the connection between the support rod 131, the vertical rod 132 and the connecting rod 133 is integrally formed, such as integral bending or integral injection molding, so that the elastic bracket 13 can stably support the first magnetic component 11 and the second magnetic component 12, thereby improving the overall stability of the drive device 1 and extending the service life of the drive device 1.

[0073] Please refer to Figure 2 In one embodiment, each connecting rod 133 has a receiving groove 1331, and connecting ears 1121 are provided on opposite sides of the connecting member 112. The two connecting ears 1121 are inserted into the receiving groove 1331 one by one, thereby improving the connection stability between the connecting rod 133 and the connecting member 112, and ensuring that the magnetic member 111 is always spaced apart from the winding mechanism 121, so as to improve the kinetic energy output stability of the drive device 1.

[0074] Please refer to Figure 1-3 In one embodiment, the drive device 1 further includes a controller (not shown in the figure), which is electrically connected to the winding mechanism 121. The controller controls the direction and magnitude of the current in the winding mechanism 121 to change the direction and amplitude of movement of the winding mechanism 121 or the magnetic component 111, thereby realizing the multi-motion mode output of the drive device 1.

[0075] Please refer to Figure 2 and Figure 4Secondly, this application embodiment also provides a brush head 2, which includes a driving device 1, a housing 21, a brush plate 22, and bristles 23. The housing 21 has a receiving cavity 211 and an opening 212 communicating with the receiving cavity 211. A winding mechanism 121 is disposed in the receiving cavity 211 and connected to the bottom wall of the receiving cavity 211. The brush plate 22 is drivenly connected to at least two magnetic elements 111, and the bristles 23 are disposed on the side of the brush plate 22 away from the magnetic elements 111. By changing the direction and magnitude of the current in the winding mechanism 121, the movement direction and amplitude of the magnetic elements 111 are changed, thereby enabling the bristles 23 of the brush head 2 to have multiple movement modes in the user's oral cavity, so as to improve the cleaning effect of the bristles 23 on the user's oral cavity. The housing 21 and the brush plate 22 can be made of plastic to reduce the weight of the brush head 2. The connection between the winding mechanism 121 and the bottom wall of the receiving cavity 211, and between the magnetic elements 111 and the brush plate 22, can be, but is not limited to, screwed, snap-fit, or glued. In this embodiment, the shape and material of the housing 21 and the brush plate 22 are not specifically limited, nor are the connection methods between the winding mechanism 121 and the bottom wall of the receiving cavity 211 and the connection methods between the magnetic component 111 and the brush plate 22.

[0076] It is understood that, in another embodiment, the magnetic component 111 can also be connected to the brush plate 22 outside the receiving cavity 211 through the opening 212. The transmission connection can be, but is not limited to, rod transmission. In this embodiment, no specific limitation is made on the transmission method between the magnetic component 111 and the brush plate 22.

[0077] Please refer to Figure 2 and Figure 5-7 Thirdly, this application also provides an electric toothbrush 3, which includes a handle 31 and a brush head 2. The housing 21 is connected to the handle 31, and the handle 31 is easy for the user to hold, so that the user can drive the brush head 2 to move in the mouth through the handle 31, thereby improving the cleaning effect of the brush head 2 on the user's mouth. The handle 31 can be rod-shaped, and the material of the handle 31 can be plastic. The connection between the handle 31 and the housing 21 can be screwed, snap-fitted, or glued. In this application embodiment, there are no specific limitations on the shape and material of the handle 31, nor on the connection method between the handle 31 and the housing 21.

[0078] Please refer to Figure 2 , Figure 5 as well as Figure 8In another embodiment, the receiving cavity 211 is disposed within the handle 31, and the handle 31 also has an opening 212 communicating with the receiving cavity 211. The winding mechanism 121 is disposed within the receiving cavity 211 and connected to the bottom wall of the receiving cavity 211. The electric toothbrush 3 also includes a transmission rod 32, which is tractively connected to at least two magnetic elements 111. The brush head 2 is disposed on the side of the transmission rod 32 away from the magnetic elements 111. The movement of the driving device 1 is transmitted to the brush head 2 through the transmission rod 32, so that the brush head 2 can clean the user's oral cavity. Compared with directly installing the driving device 1 inside the brush head 2, installing the driving device 1 inside the handle 31 can reduce the volume of the brush head 2 to adapt to the user's oral cavity size.

[0079] It is understood that the magnetic component 111 can also be connected to the transmission rod 32 outside the receiving cavity 211 through the opening 212. The transmission connection method can be, but is not limited to, rod transmission. In this embodiment, no specific limitation is made on the transmission method between the magnetic component 111 and the transmission rod 32.

[0080] It is understood that the handle 31 also has a power compartment (not shown in the figure), and a power source (not shown in the figure) is installed on the inner wall of the battery compartment. The power source is connected to the controller to provide power support for the drive device 1. The power source can be a rechargeable battery, such as a lithium battery, or a disposable battery, such as a zinc-manganese battery. In this embodiment of the application, there are no specific limitations on the type, model, and capacity of the power source.

[0081] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0082] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A driving device, characterized in that, The driving device includes: The first magnetic component includes at least two magnetic elements spaced apart. The second magnetic component includes at least two winding mechanisms, which are positioned corresponding to the magnetic element and are spaced apart from each other. The winding mechanisms can generate a magnetic field and apply magnetic force to the magnetic element through the magnetic field. When the magnetic component moves and the winding mechanism is fixed, the two magnetic components move in the same, opposite, or at an angle. When the winding mechanism moves and the magnetic component is fixed, any two winding mechanisms move in the same, opposite, or at an angle. When the moving directions are the same, the movement amplitude of the magnetic component or the winding mechanism can be increased. The driving device has a preset plane, and the movement directions of different magnetic components or winding mechanisms are parallel to the preset plane. Each of the winding mechanisms includes an iron core and a winding, the iron core being disposed facing the magnetic element and spaced apart from the magnetic element; the winding is wound on the iron core; wherein, the movement amplitude of the magnetic element can be adjusted by adjusting the magnitude of the current in the winding, and / or, the driving direction of the magnetic element can be adjusted by adjusting the direction of the current in the winding. Each of the iron cores includes a support portion, a first magnetic pole portion, and two second magnetic pole portions. The first magnetic pole portion is disposed on the support portion, and the winding is wound around the periphery of the first magnetic pole portion. The two second magnetic pole portions are disposed on the support portion, on the same surface as the first magnetic pole portion, and spaced apart from the first magnetic pole portion. The two magnetic pole portions are respectively disposed on opposite sides of the first magnetic pole portion. The two second magnetic pole portions have the same polarity, and the polarity of any second magnetic pole portion is opposite to that of the first magnetic pole portion. Each magnetic element has two magnetic portions with opposite polarities. The two magnetic portions are arranged one-to-one with the second magnetic pole portions. The driving direction of the winding mechanism on the magnetic element is the same as or opposite to that of the corresponding first magnetic pole portion.

2. The driving device as described in claim 1, characterized in that, The number of magnetic components and winding mechanisms are both two, and the two winding mechanisms drive the two magnetic components in the same, opposite, or perpendicular directions.

3. The driving device as described in claim 1, characterized in that, The number of magnetic components and winding mechanisms are both three. The three magnetic components are arranged sequentially along a preset direction. The winding mechanism in the middle drives the corresponding magnetic component in a direction parallel to the preset direction. The two winding mechanisms on both sides drive the corresponding magnetic components in the same or opposite directions and are perpendicular to the preset direction.

4. The driving device as described in claim 1, characterized in that, The second magnetic component also includes: A carrier, at least two of the winding mechanisms are spaced apart on the same surface of the carrier, and the preset plane is parallel to the surface of the carrier facing the magnetic element.

5. The driving device as described in claim 4, characterized in that, The first magnetic component further includes: A connector is disposed opposite to the carrier, and at least two of the magnetic elements are disposed on the side of the connector facing the carrier.

6. The driving device as described in claim 5, characterized in that, The connector has a heat dissipation vent at the position corresponding to the magnetic component.

7. The driving device as claimed in claim 6, characterized in that, The connector has a mounting groove on the side facing the carrier, the magnetic component is connected to the bottom of the mounting groove, and the heat dissipation vent is connected to the mounting groove.

8. The driving device as claimed in claim 7, characterized in that, The heat dissipation vent is located at the bottom of the mounting groove and / or on the wall of the mounting groove.

9. The driving device as described in claim 5, characterized in that, The support member and / or the connector are made of rigid material.

10. The driving device as claimed in claim 5, characterized in that, Also includes: An elastic bracket is connected to the load-bearing member and the connecting member to support the connecting member, so that the winding mechanism and the magnetic member are spaced apart. The elastic support can follow the magnetic component to twist in any driving direction, and the elastic support is rigid in the direction perpendicular to the plane where the driving direction is located.

11. The driving device as claimed in claim 10, characterized in that, The elastic support includes: Two support rods are respectively connected to opposite sides of the bearing member; Four vertical rods, two of which are respectively connected to the two far apart ends of one of the support rods, and the other two of which are respectively connected to the two far apart ends of another support rod; Two connecting rods, one of which has its two ends connected to the ends of two of the vertical rods away from the support rod, and the other of which has its two ends connected to the ends of the other two vertical rods away from the support rod, and the two connecting rods are respectively connected to opposite sides of the connector.

12. The driving device as claimed in claim 11, characterized in that, Each of the connecting rods has a receiving groove, and the two opposite sides of the connector are provided with connecting ears, which are inserted into the receiving grooves one by one.

13. The driving device according to any one of claims 1-12, characterized in that, Also includes: The controller is electrically connected to the winding mechanism.

14. A brush head, characterized in that, The brush head includes: The drive device as described in any one of claims 1-13; The housing has a receiving cavity and an opening communicating with the receiving cavity, the winding mechanism is disposed within the receiving cavity and connected to the bottom wall of the receiving cavity; The brush plate is connected in a transmission manner to at least two of the magnetic components; Brush bristles are disposed on the side of the brush plate opposite to the magnetic component; The magnetic element is disposed within the receiving cavity and is connected to the brush plate located at the opening; alternatively, the magnetic element is disposed within the receiving cavity and is connected to the brush plate outside the receiving cavity through the opening.

15. An electric toothbrush, characterized in that, include: handle; The brush head as claimed in claim 14, wherein the housing is connected to the handle.

16. An electric toothbrush, characterized in that, include: The drive device as described in any one of claims 1-13; The handle has a receiving cavity and an opening communicating with the receiving cavity, and the winding mechanism is disposed in the receiving cavity and connected to the bottom wall of the receiving cavity; A transmission rod is connected in a transmission manner to at least two of the magnetic components; The brush head is positioned on the side of the transmission rod away from the magnetic component; The magnetic element is disposed within the receiving cavity and is connected to the transmission rod located at the opening; alternatively, the magnetic element is disposed within the receiving cavity and is connected to the transmission rod outside the receiving cavity through the opening.

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