Vibration device and massager

Abstract

The application relates to the technical field of massage devices, aims to solve the problem of how to reduce noise during massage of a massager, and provides a vibrating device and a massager. The vibrating device is movably arranged between a first electromagnet and a second electromagnet through a magnetic core. When the magnetic core moves to a position close to the first electromagnet in the inner cavity, the first electromagnet generates a magnetic field repelling the first magnetic pole of the magnetic core, and the second electromagnet generates a magnetic field attracting the second magnetic pole of the magnetic core, so that the magnetic core moves towards the second electromagnet. When the magnetic core moves to a position close to the second electromagnet in the inner cavity, the second electromagnet generates a magnetic field repelling the second magnetic pole of the magnetic core, and the first electromagnet generates a magnetic field attracting the first magnetic pole of the magnetic core, so that the magnetic core moves towards the first electromagnet. The above processes are repeated, so that the cylinder vibrates, and the sound generated during the movement of the magnetic core is small, thereby reducing the noise of the vibrating device during vibration, and the effect of reducing the noise during massage of the massager is achieved.

Description

Technical Field

[0001] This application relates to the field of massage equipment technology, and more specifically, to vibration devices and massagers. Background Technology

[0002] With the development of various industries, workplace pressure is increasing. To alleviate this pressure, various massage devices have emerged. Among the known vibration massagers, the components used to generate mechanical vibration include an electric motor and an eccentric block. The eccentric block is connected to the shaft of the electric motor. Thus, when the electric motor rotates, the eccentric block rotates and generates vibration, thereby providing a vibration massage.

[0003] In existing technologies, vibration massagers generate significant noise during massage as the electric motor drives the eccentric block to rotate, negatively impacting the user's massage experience. Therefore, reducing noise during massage is a problem that those skilled in the art need to consider. Summary of the Invention

[0004] This application provides a vibration device and a massager to solve the problem of how to reduce the noise during massage.

[0005] In a first aspect, embodiments of this application also provide a vibration device, including a cylindrical body, a magnetic core, and an electromagnetic component. The cylindrical body extends along a first direction and includes a first end and a second end disposed along the first direction. The cylindrical body has an inner cavity extending from the first end to the second end. The magnetic core is movably disposed within the inner cavity along the first direction. The electromagnetic component includes a first electromagnet and a second electromagnet, the first electromagnet being disposed at the first end and the second electromagnet at the second end. A first magnetic pole of the magnetic core corresponds to the first electromagnet, and a second magnetic pole of the magnetic core corresponds to the second electromagnet. The first electromagnet and the second electromagnet are capable of generating alternating magnetic fields and driving the magnetic core to reciprocate along the first direction, causing the cylindrical body to vibrate.

[0006] Compared to existing technologies, the vibration device provided in this embodiment is movably disposed between the first and second electromagnets via a magnetic core. When the magnetic core moves within the cavity to a position close to the first electromagnet, the first electromagnet generates a magnetic field that repels the first magnetic pole of the magnetic core, while the second electromagnet generates a magnetic field that attracts the second magnetic pole of the magnetic core, causing the magnetic core to move towards the second electromagnet. When the magnetic core moves within the cavity to a position close to the second electromagnet, the second electromagnet generates a magnetic field that repels the second magnetic pole of the magnetic core, while the first electromagnet generates a magnetic field that attracts the first magnetic pole of the magnetic core, causing the magnetic core to move towards the first electromagnet. This cycle repeats, causing the cylinder to vibrate. Furthermore, the sound generated during the movement of the magnetic core is minimal, thereby reducing the noise of the vibration device during vibration and achieving the effect of reducing the noise during massage.

[0007] In one possible embodiment based on the first aspect, the vibration device further includes a controller, which is electrically connected to the first electromagnet and the second electromagnet respectively, and the controller is used to control the magnetic field direction of the first electromagnet and the magnetic field direction of the second electromagnet to change in a coordinated manner.

[0008] In one possible embodiment based on the first aspect, the vibration device further includes a first sensor and a second sensor, and the controller is electrically connected to the first sensor and the second sensor respectively. The first sensor is disposed at the first end, and the second sensor is disposed at the second end. The first sensor is used to detect that the magnetic core has moved to a position close to the first end and sends a first detection signal to the controller. The second sensor is used to detect that the magnetic core has moved to a position close to the second end and sends a second detection signal to the controller. The controller is used to change the magnetic field direction of the first electromagnet and the second electromagnet when it receives the first detection signal and the second detection signal.

[0009] As can be seen, the vibration device detects the movement position of the magnetic core through the first and second sensors and sends the detection signal to the controller. The controller changes the magnetic field direction of the first and second electromagnets, so that the movement direction of the magnetic core is reversed, thereby improving the positional accuracy of the magnetic core movement. The magnetic core does not come into contact or collide with the first or second electromagnet during movement, so as to reduce the noise of the massager during massage.

[0010] In one possible embodiment based on the first aspect, the first sensor includes a first photoelectric sensor, the second sensor includes a second photoelectric sensor, the first end has a first through hole communicating with the inner cavity, the first photoelectric sensor is disposed in the first through hole, the second end has a second through hole communicating with the inner cavity, and the second photoelectric sensor is disposed in the second through hole.

[0011] As can be seen, the vibration device uses a photoelectric sensor to detect the movement position of the magnetic core. The photoelectric sensor generates a detection signal due to the physical blockage of the magnetic core, thereby improving the stability and accuracy of the detection. This helps the controller to respond quickly and prevent the magnetic core from contacting or colliding with the first or second electromagnet during movement, thus reducing the vibration noise of the vibration device and achieving the effect of reducing the noise during massage.

[0012] In one possible embodiment based on the first aspect, the controller includes a magnetic field drive module connected to the first electromagnet and the second electromagnet, respectively, and the magnetic field drive module is used to supply power to the first electromagnet and the second electromagnet to generate a magnetic field.

[0013] In one possible embodiment based on the first aspect, the magnetic field driving module includes a first H-bridge driving circuit and a second H-bridge driving circuit, wherein the first H-bridge driving circuit is connected to the coil of the first electromagnet, and the second H-bridge driving circuit is connected to the coil of the second electromagnet.

[0014] In one possible embodiment based on the first aspect, the controller further includes a detection module and a control module, the control module being electrically connected to the detection module and the magnetic field drive module respectively, the detection module being used to detect the position of the magnetic core and send a detection signal to the control module, and the control module controlling the current direction of the magnetic field drive module according to the detection signal.

[0015] In one possible embodiment based on the first aspect, the detection module includes a first detection circuit and a second detection circuit. The first detection circuit is used to emit a first detection signal when the magnetic core moves to a position close to the first end, and the second detection circuit is used to emit a second detection signal when the magnetic core moves to a position close to the second end. The control module includes an MCU circuit, which is connected to the magnetic field drive module, the first detection circuit, and the second detection circuit, respectively. The MCU circuit is used to receive the first detection signal and the second detection signal and control the current direction of the magnetic field drive module.

[0016] As can be seen, the MCU circuit is connected to the first H-bridge drive circuit and the second H-bridge drive circuit respectively. When the magnetic core moves to the first end and blocks the first photoelectric sensor, the first photoelectric sensor emits a first detection signal. The MCU circuit receives the first detection signal and controls the current direction of the first H-bridge drive circuit and the second H-bridge drive circuit to change direction simultaneously, thereby stopping the magnetic core from moving towards the first end and starting to move towards the second end. When the magnetic core moves to the second end and blocks the second photoelectric sensor, the second photoelectric sensor emits a second detection signal. The MCU circuit receives the second detection signal and controls the current direction of the first H-bridge drive circuit and the second H-bridge drive circuit to change direction simultaneously, thereby stopping the magnetic core from moving towards the second end and starting to move towards the first end. This cycle repeats, causing the cylinder to vibrate. At the same time, the magnetic core does not collide with the first or second electromagnet, thereby reducing the noise of the vibration device during vibration and achieving the effect of reducing the noise of the massager.

[0017] In one possible embodiment based on the first aspect, the vibration device further includes a first buffer block and a second buffer block, wherein the first buffer block is disposed in the inner cavity near the first end, and the second buffer block is disposed in the inner cavity near the second end.

[0018] In one possible embodiment based on the first aspect, the first buffer block has a first protrusion on the surface facing the magnetic core, and the second buffer block has a second protrusion on the surface facing the magnetic core.

[0019] In one possible embodiment based on the first aspect, the first direction is a straight line or a curved line, the cylinder is a straight cylinder or a curved cylinder, and the magnetic core is fitted with the inner wall of the cylinder.

[0020] Secondly, embodiments of this application also provide a massager, including a housing and a vibration device, wherein the vibration device is disposed inside the housing, the cylinder of the vibration device is connected to the housing, and the magnetic core of the vibration device reciprocates along the first direction, causing the cylinder and the housing to vibrate.

[0021] Compared to existing technologies, the massager provided in this embodiment generates vibration through a vibration device for vibration massage. The vibration device is movably disposed between a first electromagnet and a second electromagnet via a magnetic core. The first electromagnet applies a magnetic field force to the first magnetic pole of the magnetic core, and the second electromagnet applies a magnetic field force to the second magnetic pole of the magnetic core, thereby increasing the force on the magnetic core along the same direction, thus increasing the kinetic energy of the magnetic core and enhancing the vibration intensity of the vibration device. Furthermore, when the cylinder vibrates, the impact of the magnetic core on the first or second electromagnet is reduced, thereby reducing the noise of the vibration device during vibration, thus achieving the effect of increasing the vibration massage intensity of the massager and reducing the noise of the massager.

[0022] In one possible embodiment based on the second aspect, the housing includes a silicone shell and a plastic shell, the silicone shell and the plastic shell being connected along the first direction, the silicone shell wrapping around the outer surface of the vibration device, and the plastic shell being fixedly connected to the first end of the vibration device.

[0023] In one possible embodiment based on the second aspect, the silicone shell has a massage head located near the second end. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a vibration device according to an embodiment of this application;

[0026] Figure 2 for Figure 1 A schematic diagram showing the movement of the magnetic core of the vibration device to the first end of the cylinder;

[0027] Figure 3 for Figure 1 A schematic diagram showing the movement of the magnetic core of the vibration device to the second end of the cylinder;

[0028] Figure 4 This is a schematic diagram of the structure of a massager according to an embodiment of this application;

[0029] Figure 5 for Figure 4 A 3D diagram of a massager;

[0030] Figure 6 This is a schematic diagram of the structure of a massager according to another embodiment of this application;

[0031] Figure 7 This is the schematic diagram of the controller;

[0032] Figure 8 for Figure 7 The circuit diagram of the controller's control module;

[0033] Figure 9 for Figure 7 The circuit diagram of the magnetic field drive module of the controller;

[0034] Figure 10 for Figure 7 The circuit diagram of the detection module of the controller.

[0035] Explanation of key component symbols:

[0036] 1. Vibration device; 11. Cylinder; 111. First end; 112. First through hole; 113. Second end; 114. Second through hole; 115. Inner cavity; 12. Magnetic core; 121. First magnetic pole; 122. Second magnetic pole; 13. Electromagnetic component; 131. First electromagnet; 132. First coil; 133. First iron core; 134. Second electromagnet; 135. Second coil; 136. Second iron core; 14. First direction; 15. Controller; 151. Magnetic field drive Module; 152, First H-bridge drive circuit; 153, Second H-bridge drive circuit; 154, Detection module; 155, First detection circuit; 156, Second detection circuit; 157, Control module; 158, MCU circuit; 16, First sensor; 17, Second sensor; 18, First buffer block; 181, First boss; 19, Second buffer block; 191, Second boss; 2, Massager; 21, Housing; 22, Silicone housing; 23, Massage head; 24, Plastic housing. Detailed Implementation

[0037] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0038] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] Example

[0042] Please combine Figures 1 to 10 As shown, this embodiment provides a vibration device 1, including a cylindrical body 11, a magnetic core 12, and an electromagnetic component 13. The cylindrical body 11 extends along a first direction 14 and includes a first end 111 and a second end 113 disposed along the first direction 14. The cylindrical body 11 has an inner cavity 115 extending from the first end 111 to the second end 113. The magnetic core 12 is movably disposed in the inner cavity 115 along the first direction 14. The electromagnetic component 13 includes a first electromagnet 131 and a second electromagnet 134. The first electromagnet 131 is disposed at the first end 111, and the second electromagnet 134 is disposed at the second end 113. The first magnetic pole 121 of the magnetic core 12 corresponds to the first electromagnet 131, and the second magnetic pole 122 of the magnetic core 12 corresponds to the second electromagnet 134. The first electromagnet 131 and the second electromagnet 134 can generate alternating magnetic fields and drive the magnetic core 12 to reciprocate along the first direction 14, causing the cylindrical body 11 to vibrate.

[0043] The vibration device 1 provided in this embodiment is movably disposed between the first electromagnet 131 and the second electromagnet 134 via a magnetic core 12. When the magnetic core 12 moves to a position close to the first electromagnet 131 in the inner cavity 115, the first electromagnet 131 generates a magnetic field that repels the first magnetic pole 121 of the magnetic core 12, and the second electromagnet 134 generates a magnetic field that attracts the second magnetic pole 122 of the magnetic core 12, causing the magnetic core 12 to move toward the second electromagnet 134. When the magnetic core 12 moves to a position close to the second electromagnet 134 in the inner cavity 115, the second electromagnet 134 generates a magnetic field that repels the second magnetic pole 122 of the magnetic core 12, and the first electromagnet 131 generates a magnetic field that attracts the first magnetic pole 121 of the magnetic core 12, causing the magnetic core 12 to move toward the first electromagnet 131. This cycle repeats, causing the cylinder 11 to vibrate. The sound generated during the movement of the magnetic core 12 is small, thereby reducing the noise of the vibration device 1 during vibration, reducing the noise of the massager 2, and improving the user's massage experience.

[0044] In this embodiment, the first electromagnet 131 and the second electromagnet 134 are magnetic when energized, and the magnetism disappears when the power is turned off. Preferably, both the first electromagnet 131 and the second electromagnet 134 are electromagnets, and the electromagnets are made of soft iron or silicon steel, which demagnetize quickly. The direction of the current in the first electromagnet 131 and the second electromagnet 134 changes, thereby changing the direction of the magnetic field.

[0045] The magnetic core 12 is a cylindrical permanent magnet. The magnetic core 12 includes a first magnetic pole 121 (N magnetic pole) and a second magnetic pole 122 (S magnetic pole). The first magnetic pole 121 and the second magnetic pole 122 are connected along a first direction 14. The first magnetic pole 121 is disposed toward the first end 111 and the second magnetic pole 122 is disposed toward the second end 113.

[0046] In one embodiment, the first direction 14 is a straight line or a curved line, the cylinder 11 is a straight cylinder or a curved cylinder, and the magnetic core 12 is fitted with the inner wall of the cylinder 11.

[0047] In this embodiment, the inner cavity 115 extends in a straight or curved shape. The shape of the cylinder 11 is adaptively adjusted according to the inner cavity 115; for example, the cylinder 11 can be a straight cylinder or a curved cylinder.

[0048] In one embodiment, the vibration device 1 further includes a controller 15, which is electrically connected to the first electromagnet 131 and the second electromagnet 134 respectively. The controller 15 is used to control the magnetic field direction of the first electromagnet 131 and the magnetic field direction of the second electromagnet 134 to change in a coordinated manner.

[0049] In this embodiment, the controller 15 can automatically control the coordinated change of the magnetic field direction of the first electromagnet 131 and the second electromagnet 134 through periodic signal modulation. For example, the controller 15 can adjust or calculate the time it takes for the magnetic core 12 to move from the first end 111 to the second end 113, thereby setting the magnetic field change period of the first electromagnet 131 and the second electromagnet 134. Alternatively, the controller 15 can also detect the position of the magnetic core 12 through a sensor and control the coordinated change of the magnetic field direction of the first electromagnet 131 and the second electromagnet 134.

[0050] The vibration device 1 controls the magnetic field direction of the first electromagnet 131 and the magnetic field direction of the second electromagnet 134 to change simultaneously through the controller 15. When the magnetic core 12 moves to a position close to the first electromagnet 131 or close to the second electromagnet 134, the movement direction of the magnetic core 12 is reversed in time. The magnetic core 12 does not contact or collide with the first electromagnet 131 or the second electromagnet 134 during movement, thereby further reducing the noise of the vibration device 1 during vibration, so as to reduce the noise of the massager 2 during massage.

[0051] The first electromagnet 131 applies a magnetic field force to the first magnetic pole 121 of the magnetic core 12, and the second electromagnet 134 applies a magnetic field force to the second magnetic pole 122 of the magnetic core 12. This increases the force on the magnetic core 12 along the same direction, which helps to increase the kinetic energy of the magnetic core 12 and improve the vibration intensity of the cylinder 11.

[0052] In one embodiment, the vibration device 1 further includes a first sensor 16 and a second sensor 17. The controller 15 is electrically connected to the first sensor 16 and the second sensor 17 respectively. The first sensor 16 is disposed at the first end 111, and the second sensor 17 is disposed at the second end 113. The first sensor 16 is used to detect that the magnetic core 12 has moved to a position close to the first end 111 and sends a first detection signal to the controller 15. The second sensor 17 is used to detect that the magnetic core 12 has moved to a position close to the second end 113 and sends a second detection signal to the controller 15. The controller 15 is used to change the magnetic field direction of the first electromagnet 131 and the second electromagnet 134 when it receives the first detection signal and the second detection signal.

[0053] In this embodiment, both the first sensor 16 and the second sensor 17 are position sensors, used to detect the position of the magnetic core 12. For example, the first sensor 16 and the second sensor 17 are limit switches or proximity switches.

[0054] The vibration device 1 detects the movement position of the magnetic core 12 through the first sensor 16 and the second sensor 17, and sends the detection signal to the controller 15. The controller 15 changes the magnetic field direction of the first electromagnet 131 and the second electromagnet 134, so that the movement direction of the magnetic core 12 is reversed, thereby improving the positional accuracy of the magnetic core 12. The magnetic core 12 does not contact or collide with the first electromagnet 131 or the second electromagnet 134 during movement, so as to reduce the noise of the massager 2 during massage.

[0055] Preferably, the first sensor 16 includes a first photoelectric sensor, and the second sensor 17 includes a second photoelectric sensor. A first through hole 112 is formed at the first end 111, communicating with the inner cavity 115. The first photoelectric sensor is disposed in the first through hole 112. A second through hole 114 is formed at the second end 113, communicating with the inner cavity 115. The second photoelectric sensor is disposed in the second through hole 114. The first photoelectric sensor detects the position of the moving magnetic component 12 in the inner cavity 115 through the first through hole 112, and the second photoelectric sensor detects the position of the moving magnetic component 12 in the inner cavity 115 through the second through hole 114.

[0056] The first through hole 112 and the second through hole 114 are also used for air flow in the inner cavity 115. Understandably, when the moving magnetic component 12 reciprocates in the inner cavity 115, air enters or exits the inner cavity 115 through the first through hole 112 and the second through hole 114, which is conducive to the smooth movement of the moving magnetic component 12 in the inner cavity 115.

[0057] In this embodiment, the vibration device 1 detects the movement position of the magnetic core 12 by selecting a photoelectric sensor. The photoelectric sensor generates a detection signal due to the physical blockage of the magnetic core 12, thereby improving the stability and accuracy of the detection. This setting is conducive to the controller 15 responding quickly and controlling the magnetic core 12 to not contact or collide with the first electromagnet 131 or the second electromagnet 134 during movement, thereby reducing the vibration noise of the vibration device 1 and reducing the noise of the massager 2 during massage.

[0058] Please combine Figures 7 to 10 As shown, in one embodiment, the controller 15 includes a magnetic field drive module 151, which is connected to a first electromagnet 131 and a second electromagnet 134 respectively. The magnetic field drive module 151 is used to supply power to the first electromagnet 131 and the second electromagnet 134 to generate a magnetic field.

[0059] In this embodiment, the magnetic field driving module 151 includes a first H-bridge driving circuit 152 and a second H-bridge driving circuit 153. The first electromagnet 131 includes a first coil 132 and a first iron core 133. The second electromagnet 134 includes a second coil 135 and a second iron core 136. The first H-bridge driving circuit 152 is connected to the first coil 132, and the second H-bridge driving circuit 153 is connected to the second coil 135.

[0060] Specifically, the first H-bridge drive circuit 152 includes a voltage output terminal BAT, resistors R4, R6, R10, R12, R15, R17, R20, R23, a first dual-channel MOSFET U5, and a second dual-channel MOSFET U6.

[0061] The first dual-channel MOSFET U5 includes a first ground channel Q2 and a first power-on channel Q1, and the second dual-channel MOSFET U6 includes a second ground channel Q4 and a second power-on channel Q3. The voltage output terminal BAT, the first power-on channel Q1, the first coil 132, and the second ground channel Q4 are connected in sequence to allow forward current to flow. The voltage output terminal BAT, the second power-on channel Q3, the first coil 132, and the first ground channel Q2 are connected in sequence to allow reverse current to flow.

[0062] The second H-bridge drive circuit 153 is configured in the same way as the first H-bridge drive circuit 152. The second H-bridge drive circuit 153 includes a voltage output terminal BAT, resistors R5, R7, R11, R13, R16, R18, R21, R24, a third dual-channel MOSFET U7, and a fourth dual-channel MOSFET U8.

[0063] The third dual-channel MOSFET U7 includes a third ground channel Q6 and a third power channel Q5, and the fourth dual-channel MOSFET U8 includes a fourth ground channel Q8 and a fourth power channel Q7. The voltage output terminal BAT, the third power channel Q5, the second coil 135, and the fourth ground channel Q8 are connected in sequence to allow forward current to flow. The voltage output terminal BAT, the fourth power channel Q7, the second coil 135, and the third ground channel Q6 are connected in sequence to allow reverse current to flow.

[0064] In this embodiment, the first dual-channel MOSFET U5, the second dual-channel MOSFET U6, the third dual-channel MOSFET U7, and the fourth dual-channel MOSFET U8 are all DMG6601LVT-7SOT23-6 field-effect transistors.

[0065] A voltage is input to the voltage output terminal BAT of the first H-bridge drive circuit 152, and the first power-on channel Q1 and the second ground channel Q4 are simultaneously turned on, while Q2 and Q3 are turned off, so that the first H-bridge drive circuit 152 can carry forward current. The first ground channel Q2 and the second power-on channel Q3 are simultaneously turned on, while Q1 and Q4 are turned off, so that the first H-bridge drive circuit 152 can carry reverse current. This alternating change of forward and reverse current generates an alternating magnetic field in the first coil 132. The first iron core 133 is magnetized by the first coil 132, increasing the magnetic field strength, which in turn causes the first electromagnet 131 to generate an alternating magnetic field.

[0066] A voltage is input to the voltage output terminal BAT of the second H-bridge drive circuit 153, and the third power-on channel Q5 and the fourth ground channel Q8 are simultaneously turned on, while Q6 and Q7 are turned off, so that the second H-bridge drive circuit 153 can carry forward current. The third ground channel Q6 and the fourth power-on channel Q7 are simultaneously turned on, while Q5 and Q8 are turned off, so that the second H-bridge drive circuit 153 can carry reverse current. This alternating change of forward and reverse current generates an alternating magnetic field in the second coil 135. The second iron core 136 is magnetized by the second coil 135, increasing the magnetic field strength, which in turn causes the second electromagnet 134 to generate an alternating magnetic field.

[0067] In one embodiment, the controller 15 further includes a detection module 154 and a control module 157. The control module 157 is electrically connected to the detection module 154 and the magnetic field drive module 151, respectively. The detection module 154 is used to detect the position of the magnetic core 12 and send a detection signal to the control module 157. The control module 157 controls the current direction of the magnetic field drive module 151 according to the detection signal.

[0068] The detection module 154 includes a first detection circuit 155 and a second detection circuit 156. The first detection circuit 155 is used to emit a first detection signal when the magnetic core 12 moves to a position close to the first end 111, and the second detection circuit 156 is used to emit a second detection signal when the magnetic core 12 moves to a position close to the second end 113. The control module 157 includes an MCU circuit 158, which is connected to the magnetic field drive module 151, the first detection circuit 155, and the second detection circuit 156. The MCU circuit 158 ​​is used to receive the first detection signal and the second detection signal and control the current direction of the magnetic field drive module 151.

[0069] In this embodiment, the MCU circuit 158 ​​is connected to the first H-bridge drive circuit 152 and the second H-bridge drive circuit 153, respectively. When the magnetic core 12 moves to the first end 111 and blocks the first photoelectric sensor, the first detection circuit 155 sends a first detection signal. The MCU circuit 158 ​​receives the first detection signal and controls the current direction of the first H-bridge drive circuit 152 and the second H-bridge drive circuit 153 to change direction simultaneously, thereby stopping the magnetic core 12 from moving toward the first end 111 and starting to move toward the second end 113. When the magnetic core 12 moves to the second end 113 and blocks the second photoelectric sensor, the second detection circuit 156 sends a second detection signal. The MCU circuit 158 ​​receives the second detection signal and controls the current direction of the first H-bridge drive circuit 152 and the second H-bridge drive circuit 153 to change direction simultaneously, thereby stopping the magnetic core 12 from moving toward the second end 113 and starting to move toward the first end 111. This cycle repeats, causing the cylinder 11 to vibrate. At the same time, the magnetic core 12 does not collide with the first electromagnet 131 or the second electromagnet 134, thereby reducing the noise of the vibration device 1 during vibration and reducing the noise of the massager 2 during massage.

[0070] Specifically, the MCU circuit 158 ​​includes a SEN_A signal terminal, a SEN_B signal terminal, a MA_NG1 signal terminal, a MA_PG1 signal terminal, a MA_NG2 signal terminal, a MA_PG2 signal terminal, an MB_NG1 signal terminal, an MB_PG1 signal terminal, an MB_NG2 signal terminal, and an MB_PG2 signal terminal. The SEN_A signal terminal is electrically connected to the first photoelectric sensor to receive a first detection signal. The SEN_B signal terminal is electrically connected to the second photoelectric sensor to receive a second detection signal.

[0071] The MA_NG1 signal terminal is connected to the first grounding channel Q2 via R10 to control the connection or disconnection of the first grounding channel Q2.

[0072] The MA_PG1 signal terminal is connected to the first power-on channel Q1 via R4 to control the connection or disconnection of the first power-on channel Q1.

[0073] The MA_NG2 signal terminal is connected to the second grounding channel Q4 via R20 to control the connection or disconnection of the second grounding channel Q4.

[0074] The MA_PG2 signal terminal is connected to the second power-on channel Q3 via R15 to control the connection or disconnection of the second power-on channel Q3.

[0075] The voltage output terminal BAT is connected to pin 3 of the first dual-channel MOSFET U5 via resistor R6, and pin 2 of the first dual-channel MOSFET U5 is also connected. Pin 4 of the first dual-channel MOSFET U5 is connected to the first end of the first coil 132. The second end of the first coil 132 is connected to pin 6 of the second dual-channel MOSFET U6. Pin 5 of the second dual-channel MOSFET U6 is grounded, pin 1 of the second dual-channel MOSFET U6 is grounded via resistor R23, and pin 1 of the second dual-channel MOSFET U6 is connected to MA_NG2 via resistor R20.

[0076] The voltage output terminal BAT is connected to pin 3 of the second dual-channel MOSFET U6 via resistor R17, and pin 2 of the second dual-channel MOSFET U6 is also connected. Pin 4 of the second dual-channel MOSFET U6 is connected to the second end of the first coil 132. The first end of the first coil 132 is connected to pin 6 of the first dual-channel MOSFET U5. Pin 5 of the first dual-channel MOSFET U5 is grounded, pin 1 of the first dual-channel MOSFET U5 is grounded via resistor R12, and pin 1 of the first dual-channel MOSFET U5 is connected to MA_NG1 via resistor R10.

[0077] The MB_NG1 signal terminal is connected to the third grounding channel Q6 via resistor R11 to control the connection or disconnection of the third grounding channel Q6.

[0078] The MB_PG1 signal terminal is connected to the third power channel Q5 via resistor R5 to control the connection or disconnection of the third power channel Q5.

[0079] The MB_NG2 signal terminal is connected to the fourth ground channel Q8 via resistor R21 to control the connection or disconnection of the fourth ground channel Q8.

[0080] The MB_PG2 signal terminal is connected to the fourth power channel Q7 via resistor R16 to control the connection or disconnection of the fourth power channel Q7.

[0081] The voltage output terminal BAT is connected to pin 3 of the third dual-channel MOSFET U7 via resistor R7, and pin 2 of the third dual-channel MOSFET U7 is also connected. Pin 4 of the third dual-channel MOSFET U7 is connected to the first end of the second coil 135. The second end of the second coil 135 is connected to pin 6 of the fourth dual-channel MOSFET U8. Pin 5 of the fourth dual-channel MOSFET U8 is grounded, pin 1 of the fourth dual-channel MOSFET U8 is grounded via resistor R24, and pin 1 of the fourth dual-channel MOSFET U8 is connected to MB_NG2 via resistor R21.

[0082] The voltage output terminal BAT is connected to pin 3 of the fourth dual-channel MOSFET U8 via resistor R18, and pin 2 of the fourth dual-channel MOSFET U8 is also connected. Pin 4 of the fourth dual-channel MOSFET U8 is connected to the second end of the second coil 135. The first end of the second coil 135 is connected to pin 6 of the third dual-channel MOSFET U7. Pin 5 of the third dual-channel MOSFET U7 is grounded, pin 1 of the third dual-channel MOSFET U7 is grounded via resistor R13, and pin 1 of the third dual-channel MOSFET U7 is connected to MB_NG1 via resistor R11.

[0083] When the vibration device 1 is in use, the magnetic core 12 moves to a position close to the first end 111. The first sensor 16 detects the magnetic core 12 and sends a first detection signal. The MCU circuit 158 ​​of the controller 15 receives the first detection signal at the SEN_A signal terminal. The MCU circuit 158 ​​inputs a low level to MA_PG1 and MB_PG1, and inputs a high level signal to MA_NG2 and MB_NG2, causing Q1, Q4, Q5, and Q8 to conduct. At the same time, the MCU circuit 158 ​​inputs a high level to MA_PG2 and MB_PG2, and inputs a low level signal to MA_NG1 and MB_NG1, causing Q2, Q3, Q6, and Q7 to be cut off. The first H-bridge drive circuit 152 is connected and carries a positive current. The current at the voltage output terminal BAT passes sequentially through pin 2 and pin 4 of the first dual-channel MOSFET U5, the first coil 132, pin 6 and pin 5 of the second dual-channel MOSFET U6, causing the first electromagnet 131 to generate a positive magnetic field. The end of the first electromagnet 131 closest to the magnetic core 12 is the N-pole. The second H-bridge drive circuit 153 is connected and carries a positive current. The current at the voltage output terminal BAT passes sequentially through pin 2 and pin 4 of the third dual-channel MOSFET U7, the second coil 135, pin 6 and pin 5 of the fourth dual-channel MOSFET U8, causing the second electromagnet 134 to generate a positive magnetic field. The end of the second electromagnet 134 closest to the magnetic core 12 is the N-pole. The magnetic core 12 moves towards the second end 113 under the magnetic force of the first electromagnet 131 and the second electromagnet 134. When the magnetic core 12 moves to a position close to the second end 113, the second sensor 17 detects the magnetic core 12 and sends a second detection signal. The MCU circuit 158 ​​of the controller 15 receives the second detection signal at the SEN_B signal terminal. The MCU circuit 158 ​​inputs a low level to MA_PG2 and MB_PG2, and inputs a high level signal to MA_NG1 and MB_NG1, causing Q2, Q3, Q6, and Q7 to conduct. At the same time, the MCU circuit 158 ​​inputs a high level to MA_PG1 and MB_PG1, and inputs a low level signal to MA_NG2 and MB_NG2, causing Q1, Q4, Q5, and Q8 to be cut off. As a result, the first electromagnet 131 and the second electromagnet 134 generate a reverse magnetic field, and the magnetic core 12 moves toward the first end 111. This repeated cycle causes the cylinder 11 to vibrate. The magnetic core 12 not only produces less noise during its movement, but also does not come into contact or collide with the first electromagnet 131 or the second electromagnet 134 during its movement, thereby reducing the noise of the vibration device 1 during vibration massage and reducing the noise of the massager 2 during massage.

[0084] In one embodiment, the vibration device 1 further includes a first buffer block 18 and a second buffer block 19. The first buffer block 18 is located in the inner cavity 115 near the first end 111, and the second buffer block 19 is located in the inner cavity 115 near the second end 113.

[0085] In this embodiment, the first buffer block 18 and the second buffer block 19 are made of elastic material to buffer the magnetic core 12 and prevent the magnetic core 12 from contacting the first electromagnet 131 or the second electromagnet 134, thereby reducing the noise of the vibration device 1 during vibration and achieving the effect of reducing the noise of the massager 2 during massage.

[0086] In one embodiment, the surface of the first buffer block 18 facing the magnetic core 12 is provided with a first protrusion 181, and the surface of the second buffer block 19 facing the magnetic core 12 is provided with a second protrusion 191.

[0087] In this embodiment, the first boss 181 and the second boss 191 are provided in multiples and are elastic to buffer the magnetic core 12.

[0088] In one embodiment, the cylinder 11 includes a paper tube.

[0089] In this embodiment, the cylinder 11 is made of paper tube material. The paper tube is used to further reduce the noise of the magnetic core 12 movement, thereby reducing the noise of the vibration device 1 during vibration massage, so as to reduce the noise of the massager 2 during massage.

[0090] Please combine Figures 4 to 6 As shown, an embodiment of this application also provides a massager 2, including a housing 21 and a vibration device 1. The vibration device 1 is disposed inside the housing 21. The cylinder 11 of the vibration device 1 is connected to the housing 21. The magnetic core 12 of the vibration device 1 reciprocates along a first direction 14, causing the cylinder 11 and the housing 21 to vibrate.

[0091] The massager 2 provided in this embodiment generates vibration through a vibration device 1 for vibration massage. The vibration device 1 is movably disposed between a first electromagnet 131 and a second electromagnet 134 via a magnetic core 12. The first electromagnet 131 applies a magnetic field force to the first magnetic pole 121 of the magnetic core 12, and the second electromagnet 134 applies a magnetic field force to the second magnetic pole 122 of the magnetic core 12. This increases the force on the magnetic core 12 along the same direction, thereby increasing the kinetic energy of the magnetic core 12 and enhancing the vibration intensity of the vibration device 1. Furthermore, when the cylinder 11 vibrates, it reduces the impact of the magnetic core 12 on the first electromagnet 131 or the second electromagnet 134, thereby reducing the noise of the vibration device 1 during vibration, thus improving the vibration massage intensity of the massager 2 and reducing the noise of the massager 2.

[0092] In this embodiment, the shell 21 can be designed in different shapes depending on the usage scenario of the massager 2. For example, the shell 21 can be cylindrical, and the shell 21 can extend along a straight line or a curve. This application is not limited to this.

[0093] In one embodiment, the housing 21 includes a silicone shell 22 and a plastic shell 24. The silicone shell 22 and the plastic shell 24 are connected along a first direction 14. The silicone shell 22 is wrapped around the outer surface of the vibration device 1, and the plastic shell 24 is fixedly connected to the cylinder 11 of the vibration device 1.

[0094] In this embodiment, the plastic shell 24 is hollow, and the controller 15 and battery are disposed inside the plastic shell 24. One end of the cylindrical body 11 is fixedly connected to the plastic shell 24, and the other end extends along the first direction 14. The silicone shell 22 has a thicker adhesive layer covering the vibration device 1, and the silicone shell 22 extends from the outer surface of the vibration device 1 to the silicone shell 22, and the silicone shell 22 is connected to the plastic shell 24.

[0095] In one embodiment, the silicone shell 22 has a massage head 23 at the end away from the plastic shell 24 along the first direction 14.

[0096] In this embodiment, the massage head 23 is cylindrical in shape. The vibration device 1 vibrates and drives the massage head 23 to vibrate, so that the massage head 23 performs vibration massage. In use, hold the plastic shell 24 and point the massage head 23 toward the area to be massaged to perform vibration massage.

[0097] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A vibration device, characterized in that, include: A cylindrical body extending along a first direction, the cylindrical body including a first end and a second end disposed along the first direction, the cylindrical body having an inner cavity extending from the first end to the second end; A magnetic core, movably disposed within the cavity along a first direction; and The electromagnetic component includes a first electromagnet and a second electromagnet. The first electromagnet is disposed at the first end, and the second electromagnet is disposed at the second end. The first magnetic pole of the magnetic core corresponds to the first electromagnet, and the second magnetic pole of the magnetic core corresponds to the second electromagnet. The first electromagnet and the second electromagnet can generate an alternating magnetic field and drive the magnetic core to reciprocate along the first direction, causing the cylinder to vibrate.

2. The vibration device according to claim 1, characterized in that: The vibration device also includes a controller, which is electrically connected to the first electromagnet and the second electromagnet respectively. The controller is used to control the magnetic field direction of the first electromagnet and the magnetic field direction of the second electromagnet to change in a coordinated manner.

3. The vibration device according to claim 2, characterized in that: The vibration device further includes a first sensor and a second sensor. The controller is electrically connected to the first sensor and the second sensor respectively. The first sensor is located at the first end, and the second sensor is located at the second end. The first sensor is used to detect that the magnetic core has moved to a position close to the first end and sends a first detection signal to the controller. The second sensor is used to detect that the magnetic core has moved to a position close to the second end and sends a second detection signal to the controller. The controller is used to change the magnetic field direction of the first electromagnet and the second electromagnet when it receives the first detection signal and the second detection signal.

4. The vibration device according to claim 3, characterized in that: The first sensor includes a first photoelectric sensor, and the second sensor includes a second photoelectric sensor. The first end has a first through hole that communicates with the inner cavity, and the first photoelectric sensor is disposed in the first through hole. The second end has a second through hole that communicates with the inner cavity, and the second photoelectric sensor is disposed in the second through hole.

5. The vibration device according to claim 2, characterized in that: The controller includes a magnetic field drive module, which is connected to the first electromagnet and the second electromagnet respectively. The magnetic field drive module is used to supply power to the first electromagnet and the second electromagnet to generate a magnetic field.

6. The vibration device according to claim 5, characterized in that: The magnetic field driving module includes a first H-bridge driving circuit and a second H-bridge driving circuit. The first H-bridge driving circuit is connected to the coil of the first electromagnet, and the second H-bridge driving circuit is connected to the coil of the second electromagnet.

7. The vibration device according to claim 5, characterized in that: The controller further includes a detection module and a control module. The control module is electrically connected to the detection module and the magnetic field drive module, respectively. The detection module is used to detect the position of the magnetic core and send a detection signal to the control module. The control module controls the current direction of the magnetic field drive module according to the detection signal.

8. The vibration device according to claim 7, characterized in that: The detection module includes a first detection circuit and a second detection circuit. The first detection circuit is used to emit a first detection signal when the magnetic core moves to a position close to the first end, and the second detection circuit is used to emit a second detection signal when the magnetic core moves to a position close to the second end. The control module includes an MCU circuit, which is connected to the magnetic field drive module, the first detection circuit, and the second detection circuit. The MCU circuit is used to receive the first detection signal and the second detection signal and control the current direction of the magnetic field drive module.

9. The vibration device according to claim 1, characterized in that: The vibration device further includes a first buffer block and a second buffer block, wherein the first buffer block is located in the inner cavity near the first end, and the second buffer block is located in the inner cavity near the second end.

10. The vibration device according to claim 9, characterized in that: The first buffer block has a first protrusion on its surface facing the magnetic core, and the second buffer block has a second protrusion on its surface facing the magnetic core.

11. The vibration device according to claim 1, characterized in that: The first direction is a straight line or a curved line, the cylinder is a straight cylinder or a curved cylinder, and the magnetic core is fitted with the inner wall of the cylinder.

12. A massager, characterized in that, include: The housing and the vibration device according to any one of claims 1 to 11, wherein the vibration device is disposed inside the housing, the cylinder of the vibration device is connected to the housing, and the magnetic core of the vibration device reciprocates along the first direction, causing the cylinder and the housing to vibrate.

13. The massager according to claim 12, characterized in that: The housing includes a silicone shell and a plastic shell, the silicone shell and the plastic shell are connected along the first direction, the silicone shell is wrapped around the outer surface of the vibration device, and the plastic shell is fixedly connected to the first end of the vibration device.

14. The massager according to claim 13, characterized in that: The silicone shell has a massage head near the second end.

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