Vibration device and electronic device

Abstract

The present application belongs to the technical field of vibration motor, and particularly relates to a vibration device and electronic equipment. The shell assembly of the vibration device in the present application encloses to form a mounting cavity, the vibrator assembly is suspended in the mounting cavity and can vibrate along the first direction and the second direction respectively, the first magnetic assembly and the second magnetic assembly of the vibrator assembly each include a first magnetic piece and a second magnetic piece arranged in sequence along the first direction, the magnetization direction of the first magnetic piece is the same as the second direction, the magnetization direction of the second magnetic piece is the same as the third direction, the stator assembly is arranged in the mounting cavity and connected with the shell assembly, the stator assembly is arranged between the first magnetic assembly and the second magnetic assembly and is arranged in interval with the first magnetic assembly and the second magnetic assembly respectively. By using the vibration device in the present technical solution, the bidirectional vibration of the vibrator assembly can be ensured, and the use experience, applicability and versatility of the vibration device are improved.

Description

Technical Field

[0001] This invention belongs to the field of vibration motor technology, specifically relating to a vibration device and electronic equipment. Background Technology

[0002] Currently, with the development and application of haptic feedback devices in electronic products, linear motors, as the actuators for haptic feedback, are becoming increasingly diversified in structure and function. Linear motors are widely used in mobile phones and other electronic devices due to their fast response and excellent vibration feedback. However, existing linear motors generally only provide vibration in one direction, lacking the user experience of traditional vibration motors, thus reducing their applicability and versatility. Summary of the Invention

[0003] The objective of this invention is to at least solve the problem of the single vibration direction in existing vibration motors. This objective is achieved through the following technical solution:

[0004] A first aspect of the present invention provides a vibration device comprising:

[0005] A housing assembly that encloses a mounting cavity;

[0006] An oscillator assembly is suspended in the mounting cavity and is capable of vibrating along a first direction and a second direction respectively. The oscillator assembly includes a first magnetic component and a second magnetic component arranged opposite to each other along a third direction. Both the first magnetic component and the second magnetic component include a first magnetic element and a second magnetic element arranged sequentially along the first direction. The magnetization direction of the first magnetic element is the same as that of the second direction, and the magnetization direction of the second magnetic element is the same as that of the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0007] A stator assembly is disposed in the mounting cavity and connected to the housing assembly. The stator assembly is located between the first magnetic assembly and the second magnetic assembly, and is spaced apart from the first magnetic assembly and the second magnetic assembly, respectively.

[0008] By using the vibration device in this technical solution, a combined structure of a housing assembly, an oscillator assembly, and a stator assembly is adopted. The mounting cavity of the housing assembly can provide space for the oscillator assembly and the stator assembly. The oscillator assembly can vibrate bidirectionally in a first direction and a second direction. The first magnetic component and the second magnetic component of the oscillator assembly both include a first magnetic element and a second magnetic element arranged along the second direction. The magnetization direction of the first magnetic element is the same as that of the second direction, and the magnetization direction of the second magnetic element is the same as that of the third direction. This can better ensure that the oscillator assembly can vibrate bidirectionally, improve the user experience of the vibration device, and enhance the applicability and versatility of the vibration device. When the stator assembly is energized, it can drive the first magnetic component and the second magnetic component located on both sides of it, thereby enabling the oscillator assembly to vibrate in either the first direction or the second direction.

[0009] In addition, the vibration device according to the present invention may also have the following additional technical features:

[0010] In some embodiments of the present invention, both the first magnetic component and the second magnetic component further include a third magnetic element, which is disposed on the side of the corresponding second magnetic element away from the first magnetic element, and the magnetization direction of the third magnetic element is opposite to that of the corresponding first magnetic element.

[0011] In some embodiments of the present invention, the vibration device includes a magnetic yoke disposed in the mounting cavity, the magnetic yoke having a receiving cavity, the stator assembly, the first magnetic assembly and the second magnetic assembly all being located in the receiving cavity, and the first magnetic assembly and the second magnetic assembly being connected to the magnetic yoke.

[0012] In some embodiments of the present invention, the vibration device includes a mass block located in the mounting cavity, the mass block having a receiving cavity, and the magnetic yoke disposed in the receiving cavity and connected to the mass block.

[0013] In some embodiments of the present invention, the stator assembly includes a coil and an iron core, the coil being wound around the iron core and connected to the housing assembly, and the coil being spaced apart from the first magnetic assembly and the second magnetic assembly, respectively.

[0014] In some embodiments of the present invention, the stator assembly further includes a first magnetic ring and a second magnetic ring, the first magnetic ring and the second magnetic ring being respectively sleeved on the iron core and respectively abutting against the two ends of the coil along the first direction.

[0015] In some embodiments of the present invention, the stator assembly further includes a first foam and a second foam, the first foam and the second foam being respectively sleeved on the iron core, the first foam abutting against the side of the first magnetic ring away from the coil, and the second foam abutting against the side of the second magnetic ring away from the coil.

[0016] In some embodiments of the present invention, the vibration device further includes an elastic component, one end of which is connected to the oscillator assembly, and the other end of which is connected to the housing assembly.

[0017] In some embodiments of the present invention, the housing assembly includes a base plate and a housing, the housing having an open end, the base plate covering the open end, and the base plate and the housing enclosing the mounting cavity.

[0018] A second aspect of the present invention provides an electronic device having the above-described vibration device. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 A schematic diagram of the exploded structure of a vibration device according to an embodiment of the present invention is shown.

[0021] Figure 2 A schematic diagram of the structure of the vibration device for removing the cover plate according to an embodiment of the present invention is shown.

[0022] Figure 3 for Figure 2 A cross-sectional schematic diagram of the vibration device;

[0023] Figure 4 for Figure 2 A schematic diagram of the corresponding structure of the first and second magnetic components of the vibration device.

[0024] The labels in the attached diagram are as follows:

[0025] 11. Housing; 12. Base plate; 13. FPCB;

[0026] 21. First magnetic component; 211. First magnetic element; 212. Second magnetic element; 213. Third magnetic element; 22. Second magnetic component; 23. Magnetic yoke; 231. Receiving cavity; 24. Mass block; 241. Receiving cavity;

[0027] 31. Iron core; 32. Coil; 331. First magnetic ring; 332. Second magnetic ring; 341. First foam; 342. Second foam;

[0028] 41. First elastic element; 411. First fixing part; 412. Second fixing part; 413. First elastic part; 414. Second elastic part; 42. Second elastic element. Detailed Implementation

[0029] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0030] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0032] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0033] Figure 1 A schematic diagram of the exploded structure of a vibration device according to an embodiment of the present invention is shown. Figure 1 As shown, this invention proposes a vibration device and an electronic device. The vibration device of this invention includes a housing assembly, an oscillator assembly, and a stator assembly. The housing assembly encloses a mounting cavity, and the oscillator assembly is suspended in the mounting cavity and is capable of vibrating along a first direction and a second direction, respectively. The oscillator assembly includes a first magnetic component 21 and a second magnetic component 22 arranged opposite each other along a third direction. Both the first magnetic component 21 and the second magnetic component 22 include a first magnetic element 211 and a second magnetic element 212 arranged sequentially along the first direction. The magnetization direction of the first magnetic element 211 is the same as that of the second direction, and the magnetization direction of the second magnetic element 212 is the same as that of the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The stator assembly is disposed in the mounting cavity and connected to the housing assembly. The stator assembly is disposed between the first magnetic component 21 and the second magnetic component 22 and is spaced apart from the first magnetic component 21 and the second magnetic component 22, respectively.

[0034] By using the vibration device in this technical solution, a combined structure of a housing assembly, an oscillator assembly, and a stator assembly is adopted. The mounting cavity of the housing assembly can provide space for the oscillator assembly and the stator assembly. The oscillator assembly can vibrate bidirectionally in a first direction and a second direction. The first magnetic component 21 and the second magnetic component 22 of the oscillator assembly both include a first magnetic element 211 and a second magnetic element 212 arranged along the second direction. The magnetization direction of the first magnetic element 211 is the same as that of the second direction, and the magnetization direction of the second magnetic element 212 is the same as that of the third direction. This can better ensure that the oscillator assembly can vibrate bidirectionally, improve the user experience of the vibration device, and enhance the applicability and versatility of the vibration device. When the stator assembly is energized, it can drive the first magnetic component 21 and the second magnetic component 22 located on both sides of it, thereby enabling the oscillator assembly to vibrate in either the first direction or the second direction.

[0035] In some embodiments of the present invention, such as Figure 1 and 2 As shown, both the first magnetic component 21 and the second magnetic component 22 further include a third magnetic element 213. The third magnetic element 213 is disposed on the side of the corresponding second magnetic element 212 away from the first magnetic element 211, and the magnetization direction of the third magnetic element 213 is opposite to that of the corresponding first magnetic element 211. Here, "corresponding" means that the first magnetic element 211, the second magnetic element 212, and the third magnetic element 213 of the first magnetic component 21 are corresponding; the first magnetic element, the second magnetic element, and the third magnetic element of the second magnetic component 22 are corresponding. In this embodiment, the first magnetic element 211 and the third magnetic element 213 are respectively provided at both ends of the second magnetic element 212. When the stator assembly is energized, the first magnetic element 211 and the third magnetic element 213 of the first magnetic component 21 and the second magnetic component 22 can be driven more effectively, thereby achieving more stable vibration of the oscillator assembly along the second direction. Compared to using only the combination of the first magnetic component 211 and the second magnetic component 212, the combination structure of the first magnetic component 211, the second magnetic component 212 and the third magnetic component 213 can make the driving force of the oscillator assembly in the second direction greater and more stable, thus improving reliability.

[0036] Specifically, in this embodiment, such as Figure 2 , 3 As shown in Figure 4 (where...) Figure 4The arrows in the diagram indicate the magnetization direction of the magnetic components. The magnetization direction of the first magnetic component 211 of the first magnetic assembly 21 is the direction of the second arrow; the magnetization direction of the second magnetic component 212 of the first magnetic assembly 21 is the direction of the third arrow; and the magnetization direction of the third magnetic component 213 of the first magnetic assembly 21 is the opposite direction of the second arrow. Similarly, the magnetization direction of the first magnetic component 211 of the second magnetic assembly 22 is the direction of the second arrow; the magnetization direction of the second magnetic component 212 of the second magnetic assembly 22 is the opposite direction of the third arrow; and the magnetization direction of the third magnetic component 213 of the second magnetic assembly 22 is the opposite direction of the second arrow.

[0037] In some embodiments of the present invention, such as Figure 1 and 2 As shown, the vibration device includes a magnetic yoke 23, which is disposed in the mounting cavity. The magnetic yoke 23 has a receiving cavity 231 within it. The stator assembly, the first magnetic assembly 21, and the second magnetic assembly 22 are all located within the receiving cavity 231, and both the first magnetic assembly 21 and the second magnetic assembly 22 are connected to the magnetic yoke 23. In this embodiment, the magnetic yoke 23 has a ring-shaped structure and is sleeved on the outside of the stator assembly, the first magnetic assembly 21, and the second magnetic assembly 22. This allows the magnetic lines of force of the first magnetic assembly 21 and the second magnetic assembly 22 to be guided through the coil 32, thereby improving the magnetic field utilization rate of the first magnetic assembly 21 and the second magnetic assembly 22. Furthermore, in this embodiment, the first magnetic assembly 21 and the second magnetic assembly 22 are located at the front and rear ends of the receiving cavity 231, respectively, and are connected to the inner wall surface of the magnetic yoke 23. This allows for better fixation and enables electromagnetic interaction with the stator assembly located between the first magnetic assembly 21 and the second magnetic assembly 22, improving reliability.

[0038] In some embodiments of the present invention, such as Figure 1 and 2 As shown, the vibration device includes a mass block 24 located in the mounting cavity, which has a receiving cavity 241. A magnetic yoke 23 is disposed in the receiving cavity 241 and connected to the mass block 24. In this embodiment, the mass block 24 has a ring-shaped structure and is fitted over the magnetic yoke 23, thus fixing the yoke 23. The mass block 24 provides a certain load-bearing effect when the first magnetic component 21 and the second magnetic component 22 are driven by the electromagnetic force of the stator assembly, improving the overall vibration feel of the vibration device and enhancing the user experience.

[0039] In some embodiments of the present invention, such as Figure 1 and 2As shown, the stator assembly includes a coil 32 and an iron core 31. The coil 32 is wound around the iron core 31 and connected to the outer casing assembly. The coil 32 is spaced apart from the first magnetic component 21 and the second magnetic component 22. In this embodiment, the coil 32 is wound around the outside of the iron core 31 and electrically connected to an external power source, enabling it to generate a magnetic field when energized and interact with the magnet assembly of the oscillator assembly.

[0040] In some embodiments of the present invention, such as Figure 1 and 2 As shown, the stator assembly also includes a first magnetic ring 331 and a second magnetic ring 332. The first magnetic ring 331 and the second magnetic ring 332 are respectively sleeved on the iron core 31 and respectively abut against the two ends of the coil 32 along the first direction. In this embodiment, the first magnetic ring 331 and the second magnetic ring 332 are respectively disposed at the two ends of the coil 32 along the first direction, which can correct the magnetic field lines of the coil 32 when the coil 32 is energized, thereby improving the magnetic field utilization rate of the coil 32 and increasing the driving force between the stator assembly and the oscillator assembly.

[0041] In some embodiments of the present invention, such as Figure 1 and 2 As shown, the stator assembly also includes a first foam 341 and a second foam 342. The first foam 341 and the second foam 342 are respectively sleeved on the iron core 31. The first foam 341 abuts against the side of the first magnetic ring 331 away from the coil 32, and the second foam 342 abuts against the side of the second magnetic ring 332 away from the coil 32. In this embodiment, the first foam 341 and the second foam 342 are located at both ends of the two magnetic rings and have gaps between them and the magnetic yoke 23. This can prevent large impacts on the stator assembly when the oscillator assembly vibrates, playing a buffering and damping role and improving reliability.

[0042] In some embodiments of the present invention, such as Figure 1 and 2As shown, the vibration device also includes an elastic component. One end of the elastic component is connected to the oscillator assembly, and the other end is connected to the outer shell assembly. In this embodiment, the elastic component further includes a first elastic element 41 and a second elastic element 42. One end of the first elastic element 41 and one end of the second elastic element 42 are respectively fixedly connected to the outer shell assembly, and the other ends of the first elastic element 41 and the second elastic element 42 are respectively fixedly connected to the mass block 24. In this embodiment, both the first elastic element 41 and the second elastic element 42 are spring sheet structures. One end of the spring sheet structure is fixedly connected to the outer shell assembly, and the other end is fixedly connected to the mass block 24, which can suspend the mass block 24 in the mounting cavity of the outer shell assembly. At the same time, since the stator assembly is located between the first magnet assembly and the second magnet assembly and is fixedly connected to the outer shell assembly, it can generate a magnetic driving force on the oscillator assembly when energized, causing the oscillator assembly to reciprocate. During this movement, the spring sheet structure can cause the oscillator assembly to reciprocate and can constrain the displacement of the oscillator assembly to a certain extent, ensuring the vibration effect and force.

[0043] Specifically, in this embodiment, such as Figure 2 As shown, the spring structure also includes a first fixing part 411, an elastic part, and a second fixing part 412. The two ends of the elastic part are connected to the first fixing part 411 and the second fixing part 412, respectively. The first fixing part 411 is connected to the mass block 24, and the second fixing part 412 is connected to the base plate 12. The elastic part further includes a first elastic part 413 and a second elastic part 414, which are arranged at an angle. The end of the first elastic part 413 away from the second elastic part 414 is connected to the first fixing part 411, and the end of the second elastic part 414 away from the first elastic part 413 is connected to the second fixing part 412. The elastic part can be made of rubber or a thin metal sheet, both of which can provide elasticity.

[0044] In some embodiments of the present invention, such as Figure 1 and 2 As shown, the housing assembly includes a base plate 12 and a housing 11. The housing 11 has an open end, and the base plate 12 covers the open end. The base plate 12 and the housing 11 together form the mounting cavity. In this embodiment, the housing assembly adopts a combined structure of the housing 11 and the base plate 12, which facilitates the assembly and disassembly of the vibration device. At the same time, the housing 11 has an open end, and the base plate 12 is located at the open end, which can seal the oscillator assembly and the stator assembly, providing a certain degree of sealing.

[0045] Specifically, in this embodiment, such as Figure 1As shown, the base plate 12 is also provided with an FPCB13 (Flexible Printed Circuit Board). One end of the FPCB13 is electrically connected to an external power supply, and the other end of the FPCB13 is connected to the coil 32.

[0046] A second aspect of the present invention provides an electronic device having the above-described vibration device.

[0047] By using the electronic device in this technical solution, a combined structure of housing assembly, oscillator assembly, and stator assembly is adopted. The mounting cavity of the housing assembly can provide space for the oscillator assembly and stator assembly. The oscillator assembly can vibrate bidirectionally in the first and second directions, which improves the user experience, applicability, and versatility of the vibration device. At the same time, the first magnetic component 21 and the second magnetic component 22 of the oscillator assembly both include a first magnetic element 211 and a second magnetic element 212 with the magnetization direction perpendicular to each other, which can better ensure that the oscillator assembly can vibrate bidirectionally and improve reliability. When the stator assembly is energized, it can drive the first magnetic component 21 and the second magnetic component 22 located on both sides of it, thereby enabling the oscillator assembly to vibrate in the first or second direction.

[0048] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vibration device, characterized in that, include: A housing assembly that encloses a mounting cavity; An oscillator assembly is suspended in the mounting cavity and is capable of vibrating along a first direction and a second direction respectively. The oscillator assembly includes a first magnetic component and a second magnetic component arranged opposite to each other along a third direction. Both the first magnetic component and the second magnetic component include a first magnetic element and a second magnetic element arranged sequentially along the first direction. The magnetization direction of the first magnetic element is the same as that of the second direction, and the magnetization direction of the second magnetic element is the same as that of the third direction. The first direction, the second direction, and the third direction are perpendicular to each other. A stator assembly is disposed in the mounting cavity and connected to the housing assembly. The stator assembly is located between the first magnetic assembly and the second magnetic assembly, and is spaced apart from the first magnetic assembly and the second magnetic assembly, respectively. Both the first magnetic component and the second magnetic component further include a third magnetic element, which is disposed on the side of the corresponding second magnetic element away from the first magnetic element, and the magnetization direction of the third magnetic element is opposite to that of the corresponding first magnetic element.

2. The vibration device according to claim 1, characterized in that, The vibration device includes a magnetic yoke disposed in the mounting cavity, the magnetic yoke having a receiving cavity, the stator assembly, the first magnetic assembly and the second magnetic assembly all located in the receiving cavity, and the first magnetic assembly and the second magnetic assembly are all connected to the magnetic yoke.

3. The vibration device according to claim 2, characterized in that, The vibration device includes a mass block located in the mounting cavity, the mass block having a receiving cavity, and the magnetic yoke disposed in the receiving cavity and connected to the mass block.

4. The vibration device according to claim 1, characterized in that, The stator assembly includes a coil and an iron core. The coil is wound around the iron core and connected to the housing assembly. The coil is spaced apart from the first magnetic assembly and the second magnetic assembly, respectively.

5. The vibration device according to claim 4, characterized in that, The stator assembly further includes a first magnetic ring and a second magnetic ring, which are respectively sleeved on the iron core and respectively abut against the two ends of the coil along the first direction.

6. The vibration device according to claim 5, characterized in that, The stator assembly further includes a first foam and a second foam, which are respectively sleeved on the iron core. The first foam abuts against the side of the first magnetic ring away from the coil, and the second foam abuts against the side of the second magnetic ring away from the coil.

7. The vibration device according to claim 1, characterized in that, The vibration device further includes an elastic component, one end of which is connected to the oscillator assembly, and the other end of which is connected to the outer shell assembly.

8. The vibration device according to claim 1, characterized in that, The housing assembly includes a base plate and a housing, the housing having an open end, the base plate covering the open end, and the base plate and the housing forming the mounting cavity.

9. An electronic device, characterized in that, It has a vibration device according to any one of claims 1-8.

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