Vibration motor

Abstract

This invention discloses a vibration motor, including a base and a support platform. A PCB board is mounted on the base, and a coil is connected to the PCB board. The support platform is arranged circumferentially around the coil, and a permanent magnet is connected to the support platform. A mating groove is formed between the permanent magnet and the support platform, and the coil is disposed in the mating groove. An elastic element is connected between the base and the support platform, and at least two elastic elements are provided. Connectors are respectively provided between the base and the elastic elements, between the support platform and the elastic elements, and between adjacent elastic elements. The projections of adjacent connecting elements on the end face of the base are staggered. Its structure is simple, the layout of the elastic elements is more reasonable, the structure is stable and reliable in use, and it has good performance.

Description

Technical Field

[0001] This invention relates to a vibration motor. Background Technology

[0002] Small vibration motors, as core tactile feedback components in portable electronic devices and smart wearable products, are widely used in terminal products such as mobile phones, smartwatches, and portable game consoles. They achieve functions such as call reminders and operation feedback through the reciprocating motion of the vibration system. The structural stability and controllable vibration amplitude of the product directly affect the user experience and lifespan of the terminal device. Existing small vibration motors typically include a housing, vibration assembly, stator assembly, and spring structure. Among them, the spring, as the core component of elastic support, plays a crucial role in suspending the vibration assembly and providing the restoring force for reciprocating vibration. Its layout and quantity are critical to the overall performance of the motor. The insufficient number of existing springs leads to a lack of support strength and stability. During high-frequency reciprocating motion, the vibration assembly is prone to polarization and yaw phenomena, which in turn cause problems such as rubbing between the mass block and the housing, increased noise, etc. After long-term use, the springs are prone to fatigue deformation or even breakage due to stress concentration, significantly reducing the reliability and lifespan of the motor. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a vibration motor with a simple structure, a more rational layout of elastic components, stable and reliable operation, and good performance.

[0004] To achieve the above objectives, the present invention provides a vibration motor, including a base and a support platform. A PCB board is disposed on the base, and a coil is connected to the PCB board. The support platform is arranged circumferentially along the coil, and a permanent magnet is connected to the support platform. A mating groove is formed between the permanent magnet and the support platform. The coil is disposed in the mating groove. An elastic element is connected between the base and the support platform. At least two elastic elements are provided. Connectors are respectively provided between the base and the elastic elements, between the support platform and the elastic elements, and between adjacent elastic elements. The projections of adjacent connectors on the end face of the base are staggered.

[0005] The beneficial effects of this design are as follows: the staggered projections of adjacent connecting parts on the base end face ensure that the elastic components are not on the same mounting plane, forming a multi-layered staggered support structure. This disperses the force on the bearing platform to multiple support points at different heights, effectively offsetting the lateral force and torsional torque generated during vibration, preventing the bearing platform from shifting or tilting, preventing the permanent magnet from rubbing against the coil and base, significantly reducing the risk of fatigue deformation and fracture of the elastic components due to stress concentration, and significantly improving the reliability and service life of the motor during long-term operation. The synergistic effect of multiple elastic components allows for flexible adjustment of the overall elastic coefficient, enabling precise control of vibration amplitude. This ensures sufficient vibration intensity to meet tactile feedback requirements while avoiding energy waste and equipment resonance caused by excessive amplitude. The staggered connector layout design increases the number of elastic components without increasing the overall size of the base and support platform, adapting to the slimming and lightweight development needs of miniaturized electronic devices, balancing structural stability and miniaturization. The distributed multi-layer support effectively buffers external impacts, reducing damage to core components such as coils and permanent magnets during transportation, assembly, and use, thus improving the motor's impact resistance. Uniform force distribution among the elastic components reduces noise generated during vibration, optimizing the user experience of the terminal equipment.

[0006] As a further feature of the present invention, the support platform is formed by a combination of a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first sidewall and the third sidewall are arranged opposite to each other, and the second sidewall and the fourth sidewall are arranged opposite to each other. Connectors are respectively provided on the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. The connectors on the first sidewall and the third sidewall are arranged at the same height, and the connectors on the second sidewall and the fourth sidewall are arranged at the same height. The position of the connector on the base falls on the projection of the connectors on the first sidewall and the third sidewall onto the end face of the base. Two elastic elements are provided. The elastic elements are arranged in a ring. One elastic element is connected between the connectors on the first sidewall and the third sidewall and the connectors on the second sidewall and the fourth sidewall, and the other elastic element is connected between the connectors on the second sidewall and the fourth sidewall and the connector on the base.

[0007] The beneficial effects of this design are as follows: The support platform is formed by four opposing sidewalls, each with connectors at the same height. The projection of the base connector coincides with the projections of the first and third sidewall connectors. Combined with the layered connection design of two annular elastic elements, this results in more balanced stress on the elastic elements and more rational support point placement. The two annular elastic elements, connecting each sidewall to the base connector in layers, not only maintain the core advantages of multi-layered support but also further enhance the force symmetry of the support platform by adapting the annular structure to the four-sidewall layout, completely avoiding swaying and polarization problems during vibration. The ring-shaped elastic element conforms to the connection trajectory between the sidewall and the base, resulting in smoother force transmission, further reducing stress concentration and extending the service life of the elastic element. The layered ring layout eliminates the need for additional structural size, adapting to miniaturization requirements while improving the uniformity of vibration amplitude and providing more delicate tactile feedback. The symmetrical, equal-height connector design facilitates assembly and positioning, improving production efficiency and reducing assembly errors. The ring-shaped elastic element offers superior buffering performance, further enhancing the motor's impact resistance while reducing vibration noise, balancing practicality and ease of assembly, and meeting the needs of high-precision portable electronic devices.

[0008] As a further feature of the present invention, the first and third side walls of the base are provided with mounting grooves corresponding to the positions of the connectors, and the connectors are embedded in the mounting grooves.

[0009] The beneficial effects of this design are as follows: This recessed slot structure provides precise positioning and reliable limiting for the connectors, allowing for quick and accurate placement during assembly, significantly reducing assembly deviations and improving the overall assembly precision and consistency of the motor. The connectors embedded within the slot greatly enhance connection strength, effectively preventing loosening, displacement, or detachment during vibration, and ensuring the stability of the connection between the elastic element and the base / support platform. The recessed fit increases the contact area of ​​the connectors, evenly distributing the forces and localized stresses generated by vibration, reducing stress concentration-induced deformation, fatigue, and even breakage of the connectors, thus extending the structural lifespan. Furthermore, the recessed slot design does not increase the overall size of the motor, maintaining a compact and lightweight structure that meets the design requirements for miniaturization and thinness in portable electronic devices. In addition, the slot provides semi-enclosed protection for the connectors, reducing the impact of external impacts, dust, and impurities, further enhancing the structural reliability and durability of the motor.

[0010] As a further feature of the present invention, the elastic element is configured as two semi-circular elastic arms.

[0011] The advantages of this design are as follows: By separating the elastic component into two semi-circular elastic arms, compared to a single circular elastic component, it achieves superior assembly convenience and force adaptability, highlighting the core technological benefits. The two semi-circular elastic arms can be installed separately to the side wall connectors of the support platform, eliminating the need for overall alignment and effectively avoiding the deformation problems that occur during the assembly of a single circular elastic component. This reduces assembly difficulty and improves assembly accuracy and efficiency. The semi-circular structure can flexibly adapt to the contour of the support platform, resulting in more precise force transmission, further dispersing stress, and reducing fatigue wear of the elastic arms. Each elastic arm can be independently adjusted and replaced, reducing maintenance costs. Simultaneously, the split design allows for flexible adjustment of the elastic coefficients of the two elastic arms to adapt to different vibration amplitude requirements, balancing dynamic stability and feedback finesse, without affecting the miniaturized layout of the motor.

[0012] As a further feature of the present invention, the end of the elastic arm is provided with an abutting flange, which abuts against the abutting flange of the adjacent end of the elastic arm.

[0013] The beneficial effects of this design are as follows: By incorporating abutting flanges at the ends of the elastic arms, and ensuring that the flanges of adjacent elastic arms abut against each other, the impact and frictional losses between the ends of the elastic arms during structural vibration are effectively reduced. During vibration, the elastic arms reciprocate with the support platform, and misalignment and collisions can easily occur at the ends. The mutual abutment of the flanges provides precise positioning, disperses the end abutment stress, avoids localized hard contact, reduces collision noise and wear, and extends the service life of the elastic arms. The positioning function of the flanges enhances the coordinated stability of the two semi-circular elastic arms, preventing relative displacement during vibration and ensuring the consistency of the overall elastic transmission of the elastic arms. The small contact area and tight fit of the flanges reduce vibration energy loss and ensure precise and controllable vibration amplitude. Furthermore, the flange structure is simple, requiring no additional positioning components, saving space, adapting to miniaturized motor layouts, and not increasing assembly difficulty, thus balancing practicality and economy.

[0014] As a further feature of the present invention, one end of the elastic member is attached to the connector, and the other end is provided with a notch corresponding to the location of the connector. The bottom surface of the notch is connected to the edge of the notch through an inclined wall.

[0015] The beneficial effects of this design are as follows: One end of the elastic element is attached to a connector for a stable connection, while the other end has a notch / groove corresponding to the connector. The bottom of the groove connects to the edge via an inclined wall. The core technical effect is to effectively increase the deformation range of the elastic element, meeting the elastic expansion and contraction requirements during vibration. The notch / groove provides ample space for the reciprocating deformation of the elastic element, and the inclined wall replaces the right-angle structure to achieve smooth stress transmission, avoiding localized stress concentration during deformation and ensuring that the elastic element maintains structural integrity even with large-scale deformation.

[0016] As a further feature of the present invention, a receiving cavity is formed at the center of the support platform, a cover is provided in the receiving cavity, the cover is connected to the inner peripheral wall of the receiving cavity, and the permanent magnet is connected to the cover.

[0017] The advantages of this design are as follows: With a centrally located cavity on the support platform containing a built-in cover, the cover connects to the inner wall of the cavity, and the permanent magnet is attached to the cover. The core technological benefit is the stable positioning of the permanent magnet while providing effective protection. The cavity provides dedicated installation space for the cover and the permanent magnet. The cover precisely limits the permanent magnet's position, preventing it from shifting or loosening during vibration, ensuring the precision of the fit between the permanent magnet and the coil, and guaranteeing stable vibration performance. The cover isolates dust and impurities, preventing them from affecting the magnetism of the permanent magnet and the motor's operation. The modular installation design facilitates the assembly and subsequent maintenance and replacement of the permanent magnet. The fit between the cavity and the cover does not require additional external space, adapting to the miniaturized layout of the motor, and the simple structure does not increase overall manufacturing costs.

[0018] As a further feature of the present invention, the base is provided with a baffle along the circumference, the baffle is provided with a wiring port, and the PCB board extends a wiring board outward from the wiring port.

[0019] The advantages of this design are as follows: The baffle provides a stable mounting base for the wiring port, and the wiring board extends beyond the port, preventing messy wiring, reducing wiring difficulty, and improving wiring efficiency and accuracy. The baffle protects the edges of the PCB board and wiring areas, reducing damage from external impacts and dust; the wiring port limits the wiring position, preventing poor contact caused by wire pulling and ensuring the stability of the motor circuit; the structural design fits the overall layout of the motor, does not occupy extra space, adapts to miniaturization requirements, and eliminates the need for additional wiring components, controlling manufacturing costs.

[0020] As a further feature of the present invention, the base is provided with cushioning pads at the four corner edges.

[0021] The advantages of this design are as follows: The four corners of the base are prone to stress and impact. The buffer pads effectively absorb the impact forces generated during motor assembly, transportation, and use, preventing damage and deformation of the base corners. Simultaneously, they reduce the transmission of impact to internal core components such as the PCB board and coils, preventing loosening and damage, and ensuring the motor's operational stability. The buffer pads weaken vibration transmission, reducing the impact of motor vibration on the external mounting surface and lowering resonance noise. The four-corner layout distributes stress evenly, does not occupy internal motor space, and is suitable for miniaturized designs. It fills the gap between the base and the mounting surface, improving the stability of the motor after installation. Furthermore, the structure is simple, low-cost, and does not increase assembly difficulty. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of the first embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the third embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fourth embodiment of the present invention; Figure 6 This is a structural schematic diagram of the fifth embodiment of the present invention. Detailed Implementation

[0023] This invention provides a first embodiment of a vibration motor, such as... Figures 1 to 2 As shown, the system includes a base 1 and a support platform 2. A PCB board 11 is mounted on the base 1, and a coil 5 is connected to the PCB board 11. The support platform 2 is arranged circumferentially along the coil 5, and a permanent magnet 22 is connected to the support platform 2. A mating groove is formed between the permanent magnet 22 and the support platform 2. The coil 5 is disposed in the mating groove. An elastic element 3 is connected between the base 1 and the support platform 2. At least two elastic elements 3 are provided. Connecting elements 4 are respectively provided between the base 1 and the elastic elements 3, between the support platform 2 and the elastic elements 3, and between adjacent elastic elements 3. The projections of adjacent connecting elements 4 on the end face of the base 1 are staggered. The support platform 2 is formed by combining a first side wall, a second side wall, a third side wall, and a fourth side wall. The first side wall and the third side wall are arranged opposite each other, and the second side wall and the fourth side wall are arranged opposite each other. Connectors 4 are respectively provided on the first side wall, the second side wall, the third side wall, and the fourth side wall. The connectors 4 on the first side wall and the third side wall are arranged at the same height, and the connectors 4 on the second side wall and the fourth side wall are arranged at the same height. The position of the connector 4 on the base 1 falls on the projection of the connectors 4 on the first side wall and the third side wall onto the end face of the base 1. There are two elastic elements 3. The elastic elements 3 are arranged in a ring. One elastic element 3 is connected between the connectors 4 on the first side wall and the third side wall and the connectors 4 on the second side wall and the fourth side wall, and the other elastic element 3 is connected between the connectors 4 on the second side wall and the fourth side wall and the connectors 4 on the base 1. The support platform 2 has a accommodating cavity at its center, and a cover 21 is disposed in the accommodating cavity. The cover 21 is connected to the inner peripheral wall of the accommodating cavity, and the permanent magnet 22 is connected to the cover 21. The base 1 has a baffle 12 arranged circumferentially, and a wiring port is provided on the baffle 12. A wiring board 14 extends outward from the wiring port of the PCB board 11. Buffer pads 13 are provided at the four corner edges of the base 1.

[0024] This invention provides a second embodiment of a vibration motor, such as... Figure 3 As shown, the system includes a base 1 and a support platform 2. A PCB board 11 is mounted on the base 1, and a coil 5 is connected to the PCB board 11. The support platform 2 is arranged circumferentially along the coil 5, and a permanent magnet 22 is connected to the support platform 2. A mating groove is formed between the permanent magnet 22 and the support platform 2. The coil 5 is disposed in the mating groove. An elastic element 3 is connected between the base 1 and the support platform 2. At least two elastic elements 3 are provided. Connecting elements 4 are respectively provided between the base 1 and the elastic elements 3, between the support platform 2 and the elastic elements 3, and between adjacent elastic elements 3. The projections of adjacent connecting elements 4 on the end face of the base 1 are staggered. The support platform 2 is formed by combining a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first and third sidewalls are arranged opposite each other, as are the second and fourth sidewalls. Connectors 4 are respectively provided on the first, second, third, and fourth sidewalls. The connectors 4 on the first and third sidewalls are at the same height, as are the connectors 4 on the second and fourth sidewalls. The position of the connector 4 on the base 1 falls on the projection of the connectors 4 on the first and third sidewalls onto the end face of the base 1. Two elastic elements 3 are provided, arranged in a ring. One elastic element 3 connects between the connectors 4 on the first and third sidewalls and the connectors 4 on the second and fourth sidewalls, while the other elastic element 3 connects between the connectors 4 on the second and fourth sidewalls and the connector 4 on the base 1. The first and third sidewalls of the base 1 have corresponding mounting grooves at the positions of the connectors, and the connectors 4 are embedded in these grooves. The support platform 2 has a cavity at its center, and a cover 21 is disposed in the cavity. The cover 21 is connected to the inner peripheral wall of the cavity, and the permanent magnet 22 is connected to the cover 21. The base 1 has a baffle 12 arranged circumferentially, and a wiring port is provided on the baffle 12. A wiring board 14 extends from the PCB board 11 outward from the wiring port.

[0025] This invention provides a third embodiment of a vibration motor, such as... Figure 4As shown, the system includes a base 1 and a support platform 2. A PCB board 11 is mounted on the base 1, and a coil 5 is connected to the PCB board 11. The support platform 2 is arranged circumferentially along the coil 5, and a permanent magnet 22 is connected to the support platform 2. A mating groove is formed between the permanent magnet 22 and the support platform 2. The coil 5 is disposed in the mating groove. An elastic element 3 is connected between the base 1 and the support platform 2. At least two elastic elements 3 are provided. Connecting elements 4 are respectively provided between the base 1 and the elastic elements 3, between the support platform 2 and the elastic elements 3, and between adjacent elastic elements 3. The projections of adjacent connecting elements 4 on the end face of the base 1 are staggered. The support platform 2 is formed by combining a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first and third sidewalls are arranged opposite each other, as are the second and fourth sidewalls. Connectors 4 are respectively provided on the first, second, third, and fourth sidewalls. The connectors 4 on the first and third sidewalls are at the same height, as are the connectors 4 on the second and fourth sidewalls. The position of the connectors 4 on the base 1 falls on the projection of the connectors 4 on the first and third sidewalls onto the end face of the base 1. Two elastic elements 3 are provided, arranged in a ring. One elastic element 3 connects between the connectors 4 on the first and third sidewalls and the connectors 4 on the second and fourth sidewalls, while the other elastic element 3 connects between the connectors 4 on the second and fourth sidewalls and the connector 4 on the base 1. The elastic element 3 is split into two semi-circular elastic arms. The support platform 2 has a accommodating cavity at its center, and a cover 21 is disposed in the accommodating cavity. The cover 21 is connected to the inner peripheral wall of the accommodating cavity, and the permanent magnet 22 is connected to the cover 21. The base 1 has a baffle 12 arranged circumferentially, and a wiring port is provided on the baffle 12. A wiring board 14 extends outward from the wiring port of the PCB board 11. Buffer pads 13 are provided at the four corner edges of the base 1.

[0026] This invention provides a fourth embodiment of a vibration motor, such as... Figure 5As shown, the system includes a base 1 and a support platform 2. A PCB board 11 is mounted on the base 1, and a coil 5 is connected to the PCB board 11. The support platform 2 is arranged circumferentially along the coil 5, and a permanent magnet 22 is connected to the support platform 2. A mating groove is formed between the permanent magnet 22 and the support platform 2. The coil 5 is disposed in the mating groove. An elastic element 3 is connected between the base 1 and the support platform 2. At least two elastic elements 3 are provided. Connecting elements 4 are respectively provided between the base 1 and the elastic elements 3, between the support platform 2 and the elastic elements 3, and between adjacent elastic elements 3. The projections of adjacent connecting elements 4 on the end face of the base 1 are staggered. The support platform 2 is formed by combining a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first and third sidewalls are arranged opposite each other, as are the second and fourth sidewalls. Connectors 4 are respectively provided on the first, second, third, and fourth sidewalls. The connectors 4 on the first and third sidewalls are at the same height, as are the connectors 4 on the second and fourth sidewalls. The position of the connectors 4 on the base 1 falls on the projection of the connectors 4 on the first and third sidewalls onto the end face of the base 1. Two elastic elements 3 are provided, arranged in a ring. One elastic element 3 connects between the connectors 4 on the first and third sidewalls and the connectors 4 on the second and fourth sidewalls, while the other elastic element 3 connects between the connectors 4 on the second and fourth sidewalls and the connector 4 on the base 1. The elastic element 3 is split into two semi-circular elastic arms. The end of the elastic arm is provided with an abutting flange 31, which abuts against the abutting flange 31 at the end of the adjacent elastic arm. A receiving cavity is formed at the center of the support platform 2, and a cover 21 is disposed in the receiving cavity. The cover 21 is connected to the inner peripheral wall of the receiving cavity, and the permanent magnet 22 is connected to the cover 21. A baffle 12 is provided circumferentially on the base 1, and a wiring port is provided on the baffle 12. A wiring board 14 extends from the PCB board 11 outward from the wiring port. Buffer pads 13 are provided at the four corner edges of the base 1.

[0027] This invention provides a fifth embodiment of a vibration motor, such as... Figure 6As shown, the system includes a base 1 and a support platform 2. A PCB board 11 is mounted on the base 1, and a coil 5 is connected to the PCB board 11. The support platform 2 is arranged circumferentially along the coil 5, and a permanent magnet 22 is connected to the support platform 2. A mating groove is formed between the permanent magnet 22 and the support platform 2. The coil 5 is disposed in the mating groove. An elastic element 3 is connected between the base 1 and the support platform 2. At least two elastic elements 3 are provided. Connecting elements 4 are respectively provided between the base 1 and the elastic elements 3, between the support platform 2 and the elastic elements 3, and between adjacent elastic elements 3. The projections of adjacent connecting elements 4 on the end face of the base 1 are staggered. The support platform 2 is formed by combining a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first and third sidewalls are arranged opposite each other, as are the second and fourth sidewalls. Connectors 4 are respectively provided on the first, second, third, and fourth sidewalls. The connectors 4 on the first and third sidewalls are at the same height, as are the connectors 4 on the second and fourth sidewalls. The position of the connectors 4 on the base 1 falls on the projection of the connectors 4 on the first and third sidewalls onto the end face of the base 1. Two elastic elements 3 are provided, arranged in a ring. One elastic element 3 connects between the connectors 4 on the first and third sidewalls and the connectors 4 on the second and fourth sidewalls, while the other elastic element 3 connects between the connectors 4 on the second and fourth sidewalls and the connectors 4 on the base 1. One end of the elastic element 3 is attached to the connector 4, and the other end has a notch 32 corresponding to the position of the connector 4. The bottom surface of the notch 32 is connected to the edge of the notch 32 by an inclined wall. The support platform 2 has a accommodating cavity at its center, and a cover 21 is disposed in the accommodating cavity. The cover 21 is connected to the inner peripheral wall of the accommodating cavity, and the permanent magnet 22 is connected to the cover 21. The base 1 has a baffle 12 arranged circumferentially, and a wiring port is provided on the baffle 12. A wiring board 14 extends outward from the wiring port of the PCB board 11. Buffer pads 13 are provided at the four corner edges of the base 1.

[0028] The above examples are merely one preferred embodiment of the present invention. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included within the protection scope of the present invention.

Claims

1. A vibration motor, comprising a base and a support platform, wherein a PCB board is disposed on the base, a coil is connected to the PCB board, the support platform is arranged circumferentially along the coil, a permanent magnet is connected to the support platform, a mating groove is formed between the permanent magnet and the support platform, the coil is disposed in the mating groove, and an elastic element is connected between the base and the support platform, characterized in that: The elastic element is provided in at least two parts. Connecting elements are provided between the base and the elastic element, between the support platform and the elastic element, and between adjacent elastic elements. The projections of adjacent connecting elements on the end face of the base are staggered.

2. The vibration motor according to claim 1, characterized in that: The support platform is formed by combining a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first sidewall and the third sidewall are arranged opposite each other, as are the second sidewall and the fourth sidewall. Connectors are respectively provided on the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall. The connectors on the first sidewall and the third sidewall are at the same height, as are the connectors on the second sidewall and the fourth sidewall. The position of the connector on the base falls on the projection of the connectors on the first sidewall and the third sidewall onto the end face of the base. Two elastic elements are provided, arranged in a ring. One elastic element connects between the connectors on the first sidewall and the third sidewall and the connectors on the second sidewall and the fourth sidewall, and the other elastic element connects between the connectors on the second sidewall and the fourth sidewall and the connector on the base.

3. The vibration motor according to claim 2, characterized in that: The first and third side walls of the base are provided with mounting grooves corresponding to the positions of the connectors, and the connectors are embedded in the mounting grooves.

4. The vibration motor according to claim 2, characterized in that: The elastic element is configured as two semi-circular elastic arms.

5. The vibration motor according to claim 4, characterized in that: The end of the elastic arm is provided with an abutting flange, which abuts against the abutting flange of the adjacent end of the elastic arm.

6. The vibration motor according to claim 2, characterized in that: One end of the elastic element is attached to the connector, and the other end has a notch or groove corresponding to the location of the connector. The bottom surface of the notch or groove is connected to the edge of the notch or groove through an inclined wall.

7. The vibration motor according to claim 1, characterized in that: The support platform has a cavity at its center, and a cover is provided in the cavity. The cover is connected to the inner peripheral wall of the cavity, and the permanent magnet is connected to the cover.

8. The vibration motor according to claim 1, characterized in that: The base is provided with a circumferential flange, and a wiring port is provided on the flange. A wiring board extends outward from the wiring port on the PCB board.

9. The vibration motor according to claim 1, characterized in that: The base has cushioning pads at its four corner edges.

Images