Vibration device and electronic equipment

Abstract

The utility model belongs to the technical field of vibration motors, and particularly relates to a vibration device and electronic equipment. A containing cavity is formed inside a shell, an oscillator assembly is suspended in the containing cavity and vibrates in a reciprocating mode in the second direction and the third direction, a stator assembly and a magnetic circuit unit are arranged at intervals in the first direction, the stator assembly comprises a support, a first coil and a second coil, the first coil surrounds the support, and the second coil surrounds the second direction. The axial direction of the first coil is parallel to the second direction, the second coil surrounds the support and the first coil, the axial direction of the second coil is parallel to the third direction, and included angles are formed among the first direction, the second direction and the third direction. The vibrator assembly is independently driven in different directions through the first coil and the second coil, when the vibrator assembly vibrates in one direction, vibration in the other direction is not affected, and the experience feeling in the single vibration direction is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration motors, and in particular relates to a vibration device and an electronic device. Background Art

[0002] As vibration exciters are used in a growing number of applications, the market is placing diverse demands on their performance. Vibration exciters should be able to achieve multiple vibration modes within a given space, providing a richer user experience. Existing dual-frequency, bidirectional vibrators, when stimulating vibration in one direction, also stimulate the other, making it impossible to clearly distinguish the vibration direction and reducing the experience and perception of single-directional vibration. Utility Model Content

[0003] The purpose of this utility model is to at least solve the problem of unclear unidirectional vibration experience of dual-frequency bidirectional vibration exciter. This purpose is achieved through the following technical solutions:

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

[0005] a housing, wherein a receiving cavity is formed inside the housing;

[0006] a vibrator assembly suspended in the accommodating cavity and reciprocatingly vibrating along the second direction and the third direction, the vibrator assembly comprising a magnetic circuit unit;

[0007] The stator assembly and the magnetic circuit unit are spaced apart along a first direction, and the stator assembly includes a bracket, a first coil, and a second coil. The first coil is wrapped around the outside of the bracket, and the axial direction of the first coil is parallel to the second direction. The second coil is wrapped around the outside of the bracket and the first coil, and the axial direction of the second coil is parallel to the third direction. The first direction, the second direction, and the third direction form an angle with each other. According to the vibration device of the utility model, the accommodating cavity of the shell can provide a layout space for the vibrator assembly and the stator assembly. The bracket is provided with two first coils and second coils in different directions. The axial direction of the first coil, the axial direction of the second coil, and the first direction are arranged perpendicularly to each other. When each is energized, magnetic forces in different directions are applied to the first magnetic assembly and the second magnetic assembly, and the vibrator assembly vibrates in its respective directions. The utility model can drive the vibrator assembly in different directions separately through the first coil and the second coil to achieve dual-frequency and bidirectional vibration. When vibrating in one direction, it will not affect the vibration in the other direction, thereby improving the experience in a single vibration direction and making the vibration experience in a single direction clearer.

[0008] In addition, the vibration device according to the present invention may also have the following additional technical features:

[0009] In some embodiments of the present invention, the magnetic circuit unit includes a first magnetic component and a second magnetic component that are opposite to and spaced apart along the first direction, the stator component is arranged between the first magnetic component and the second magnetic component, and is spaced apart from the first magnetic component and the second magnetic component, respectively, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] In some embodiments of the present invention, the bracket includes a main body, a first fixing part and a second fixing part, the first fixing part and the second fixing part are respectively arranged at two ends of the main body along the second direction, and the first coil surrounds the outside of the main body and is located between the first fixing part and the second fixing part.

[0011] In some embodiments of the present invention, the projection area of ​​the first fixing portion and the second fixing portion along the second direction is larger than the projection area of ​​the main body along the second direction, the first fixing portion is provided with first limiting grooves on opposite sides along the first direction, and the second fixing portion is provided with second limiting grooves on opposite sides along the first direction, and the second coil is respectively arranged in the first limiting groove and the second limiting groove.

[0012] In some embodiments of the present invention, the first magnetic component and the second magnetic component both include a central magnet, a first side magnet, a second side magnet and a magnetic conductive plate, the magnetic conductive plate is bent toward the stator component at both ends along the second direction to form an installation space, the central magnet, the first side magnet and the second side magnet are all located in the installation space and are respectively connected to the magnetic conductive plate, and the first side magnet and the second side magnet are respectively arranged on opposite sides of the central magnet along the second direction.

[0013] In some embodiments of the present invention, the vibrator assembly further includes a mass block, the mass block is located in the accommodating cavity, the mass block has an accommodating cavity, and the first magnetic assembly and the second magnetic assembly are both fixed in the accommodating cavity.

[0014] In some embodiments of the present invention, the vibration device also includes two spring plates, which are respectively arranged on both sides of the mass block along the second direction, and the spring plate includes a first fixed end fixedly connected to the mass block, a second fixed end fixedly connected to the outer shell, and an elastic arm located between the first fixed end and the second fixed end.

[0015] In some embodiments of the present invention, the vibration device further includes a damping member, which is disposed between the elastic arm and the mass block.

[0016] In some embodiments of the present invention, the housing includes a bottom plate and a shell, the shell has an open end, the bottom plate is covered on the open end, the bottom plate and the shell together form the accommodating cavity, and the bracket is connected to the bottom plate;

[0017] And / or, the bracket is an iron core.

[0018] A second aspect of the present invention provides an electronic device having the above-mentioned vibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0020] Figure 1 Schematically shows a schematic diagram of the explosion structure of the vibration device according to an embodiment of the present utility model;

[0021] Figure 2 The figure schematically shows a top view of the cross-sectional structure of the vibration device according to the embodiment of the present utility model.

[0022] The reference numerals in the accompanying drawings represent the following:

[0023] 11. Shell; 12. Bottom plate;

[0024] 21. First magnetic assembly; 211. Magnetic plate; 212. Center magnet; 213. First side magnet; 214. Second side magnet; 22. Second magnetic assembly; 23. Mass block; 231. Accommodating cavity; 24. Spring piece; 25. Stopper;

[0025] 31. Bracket; 311. Main body; 312. First fixing portion; 3121. First limiting groove; 313. Second fixing portion; 3131. Second limiting groove; 32. First coil; 33. Second coil;

[0026] 41. First foam; 42. Second foam. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0029] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0030] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "above" the other element or feature. Thus, the example term "below" can encompass both above and below orientations.

[0031] Figure 1 The exploded structure diagram of the vibration device according to the embodiment of the present utility model is schematically shown. Figure 2 The top view of the structure of the vibration device according to the embodiment of the present invention is schematically shown. Figure 1 and 2As shown, the present invention proposes a vibration device and an electronic device. The vibration device in the present invention includes a housing, a vibrator assembly, and a stator assembly. The housing encloses a receiving cavity. The vibrator assembly is suspended in the receiving cavity and reciprocates along the second direction and the third direction. The vibrator assembly includes a magnetic circuit unit. The stator assembly and the magnetic circuit unit are spaced apart along the first direction. The stator assembly includes a bracket 31, a first coil 32, and a second coil 33. The first coil 32 surrounds the outside of the bracket 31, and the axial direction of the first coil 32 is parallel to the second direction. The second coil 33 surrounds the outside of the bracket 31 and the first coil 32, and the axial direction of the second coil 33 is parallel to the third direction. The first direction, the second direction, and the third direction form an angle with each other.

[0032] According to the vibration device of the present invention, the accommodating cavity of the shell can provide layout space for the vibrator assembly and the stator assembly. The bracket 31 is provided with two first coils 32 and second coils 33 in different directions, and the axial direction of the first coil 32 and the axial direction of the second coil 33 are different. When each is energized, magnetic forces in different directions can be applied to the first magnetic assembly 21 and the second magnetic assembly 22, and the vibrator assembly can vibrate in its respective directions. The present invention can separately drive the vibrator assembly in different directions through the first coil 32 and the second coil 33 to achieve dual-frequency and bidirectional vibration. When vibrating in one direction, it will not affect the vibration in the other direction, thereby enhancing the experience in a single vibration direction and making the vibration experience in a single direction clearer.

[0033] In some embodiments of the present invention, the magnetic circuit unit includes a first magnetic assembly 21 and a second magnetic assembly 22 that are spaced apart from each other along a first direction. The first magnetic assembly 21 and the second magnetic assembly 22 are arranged in the first direction. The stator assembly is disposed between the first magnetic assembly 21 and the second magnetic assembly 22 and is spaced apart from each other, with the first direction, the second direction, and the third direction being perpendicular to each other. The magnetic circuits are arranged on both sides of the stator assembly, resulting in a greater driving force, balanced force, and less prone to polarization.

[0034] In some embodiments of the present invention, Figure 1 and 2 As shown, the bracket 31 includes a main body 311, a first fixing portion 312, and a second fixing portion 313. The first fixing portion 312 and the second fixing portion 313 are respectively provided at both ends of the main body 311 along the second direction. In this embodiment, the projection of the main body 311 toward the first fixing portion 312 is located within the first fixing portion 312, and the projection of the main body 311 toward the second fixing portion 313 is located within the second fixing portion 313. This allows the first coil 32 to be limited in position along the second direction by the first fixing portion 312 and the second fixing portion 313, ensuring that the first coil 32 does not slip out of the bracket 31.

[0035] Specifically, in this embodiment, Figure 1 and 2 As shown, the first coil 32 is wrapped around the outside of the main body 311 and is respectively between the outside of the first fixing portion 312 and the second fixing portion 313. The second coil 33 is arranged around the outside of the bracket 31 in the third direction and is respectively against the outside of the first fixing portion 312 and the second fixing portion 313. The first fixing portion 312 and the second fixing portion 313 are arranged in the second direction. The first coil 32 and the second coil 33 are respectively wrapped around the outside of different structures of the bracket 31 in different directions. When power is applied, the vibrator assembly can be driven in different directions, improving stability and reliability. When power is applied, the first coil 32 can cause the vibrator assembly to reciprocate in the second direction, and when power is applied, the second coil 33 can cause the vibrator assembly to reciprocate in the third direction.

[0036] In some embodiments of the present invention, Figure 1 As shown, the projected areas of the first fixing portion 312 and the second fixing portion 313 along the second direction are larger than the projected areas of the main body 311 along the second direction. The first fixing portion 312 is provided with first limiting grooves 3121 on opposite sides along the first direction, and the second fixing portion 313 is provided with second limiting grooves 3131 on opposite sides along the first direction. The second coil 33 is respectively engaged in the first limiting grooves 3121 and the second limiting grooves 3131. In this embodiment, the provision of the first limiting grooves 3121 and the second limiting grooves 3131 enables the second coil 33 to fit tightly with the first fixing portion 312 and the second fixing portion 313, and prevents the second coil 33 from slipping out of the first fixing portion 312 and the second fixing portion 313.

[0037] In some embodiments of the present invention, the second coil 33 is spaced apart and sleeved outside the first coil 32. In this embodiment, this arrangement ensures that when the first coil 32 and the second coil 33 are independently energized, they do not affect each other. Consequently, when the vibrator assembly vibrates in one direction, it does not affect the vibration in the other direction. This enhances the experience in a single vibration direction and makes the vibration experience in that single direction clearer.

[0038] In some embodiments of the present invention, Figure 2As shown, the first magnetic assembly 21 and the second magnetic assembly 22 each include a central magnet 212, a first side magnet 213, a second side magnet 214, and a magnetic conductive plate 211. The magnetic conductive plate 211 is bent toward the stator assembly at both ends along the second direction to form an installation space. The central magnet 212, the first side magnet 213, and the second side magnet 214 are all located in the installation space and are respectively connected to the magnetic conductive plate 211. The first side magnet 213 and the second side magnet 214 are respectively arranged on opposite sides of the central magnet 212 along the second direction. In this embodiment, the magnetic conductive plate 211 is a semi-annular structure, which is arranged around the central magnet 212, the first side magnet 213, and the second side magnet 214. It can guide the magnetic lines of force of the central magnet 212, the first side magnet 213, and the second side magnet 214 to pass through the first coil 32 or the second coil 33, thereby improving the magnetic field utilization rate of the first magnetic assembly 21 and the second magnetic assembly 22. The provision of the first side magnet 213 and the second side magnet 214 can enhance the magnetism of the central magnet 212 , thereby increasing the driving force on the vibrator assembly when the first coil 32 or the second coil 33 is energized.

[0039] In some embodiments of the present invention, Figure 1 As shown, the vibrator assembly also includes a mass block 23, which is located in the accommodating cavity. The mass block 23 has an accommodating cavity 231. The first magnetic component 21 and the second magnetic component 22 are fixed in the accommodating cavity 231 and connected to the mass block 23. In this embodiment, the mass block 23 is an annular structure that is mounted outside the first magnetic component 21 and the second magnetic component 22 to fix the first magnetic component 21 and the second magnetic component 22. The mass block 23 can provide a certain weight-bearing effect when the first magnetic component 21 and the second magnetic component 22 are driven by the electromagnetic force of the stator assembly, thereby enhancing the vibration sensation of the entire vibration device and also improving the user experience.

[0040] In some embodiments of the present invention, Figure 1 As shown, the housing includes a bottom plate 12 and a shell 11. The shell 11 has an open end, and the bottom plate 12 is disposed on the open end. The bottom plate 12 and the shell 11 enclose a receiving cavity, and the bracket 31 is connected to the bottom plate 12. In this embodiment, the housing adopts a combined structure of the shell 11 and the bottom plate 12, which facilitates the assembly and disassembly of the vibration device. At the same time, the shell 11 has an open end, and the bottom plate 12 is disposed on the open end, which can seal the vibrator assembly and stator assembly, providing a certain sealing effect.

[0041] In some embodiments of the present invention, the bracket 31 is an iron core, and the bracket 31 is made of a magnetic conductive material to further gather the magnetic lines of force and improve the driving force.

[0042] In some embodiments of the present invention, Figure 1As shown, the vibration device also includes two spring pieces 24, which are respectively arranged on both sides of the mass block 23 along the second direction. The spring piece includes a first fixed end fixedly connected to the mass block 23, a second fixed end fixedly connected to the shell, and an elastic arm located between the first fixed end and the second fixed end. In this embodiment, the second fixed end is fixedly connected to the shell, and the first fixed end is fixedly connected to the mass block 23, so that the mass block 23 can be suspended in the mounting cavity of the shell. At the same time, because the stator assembly is located between the first magnet assembly and the second magnet assembly and is fixedly connected to the shell, it can generate a magnetic driving force on the vibrator assembly when power is applied, causing the vibrator assembly to reciprocate. During this movement, the spring piece 24 can cause the vibrator assembly to reciprocate and can also impose certain constraints on the displacement of the vibrator assembly to ensure the vibration effect and strength.

[0043] In some embodiments of the present invention, Figure 1 As shown, the vibration device also includes a damping member, which is arranged between the elastic arm and the mass block 23. The damping member includes a first foam 41 and a second foam 42, which are respectively arranged between the bracket 31 and the mass block 23, and the first foam 41 and the second foam 42 are spaced apart along the second direction. In this embodiment, the first foam 41 and the second foam 42 can buffer the impact of the mass block 23 and the vibrator assembly when the vibrator assembly vibrates, play a damping role in the second direction, and improve reliability and braking performance. Specifically, in this embodiment, as Figure 1 As shown, a stopper 25 is provided between the spring structure and the mass block 23 to prevent the spring structure from falling off the mass block 23 .

[0044] The utility model also provides an electronic device having the above-mentioned vibration device.

[0045] According to the vibration device of the electronic device of the present invention, the accommodating cavity of the shell can provide layout space for the vibrator assembly and the stator assembly, and the first coil 32 and the second coil 33 in two different directions are wound on the bracket 31, and the axial direction of the first coil 32, the axial direction of the second coil 33 and the first direction are arranged perpendicular to each other, which can exert magnetic forces in different directions on the first magnetic component 21 and the second magnetic component 22 when they are respectively energized, and make the vibrator assembly vibrate in their respective directions. The utility model can separately drive the vibrator assembly in different directions through the first coil 32 and the second coil 33 to achieve dual-frequency and bidirectional vibration, and when vibrating in one direction, it will not affect the vibration in the other direction, thereby enhancing the experience in a single vibration direction and making the vibration experience in a single direction clearer.

[0046] 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 changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A vibration device, characterized in that: include: A housing, wherein a receiving cavity is formed inside the housing; A vibrator assembly, the vibrator assembly is suspended in the accommodating cavity and reciprocates along the second direction and the third direction, and the vibrator assembly includes a magnetic circuit unit; A stator assembly, wherein the stator assembly and the magnetic circuit unit are spaced apart along a first direction, and the stator assembly comprises a bracket, a first coil and a second coil, wherein the first coil is wrapped around the outside of the bracket, and the axial direction of the first coil is parallel to the second direction, the second coil is wrapped around the outside of the bracket and the first coil, and the axial direction of the second coil is parallel to the third direction, and the first direction, the second direction and the third direction form an angle with each other.

2. The vibration device according to claim 1, characterized in that The magnetic circuit unit includes a first magnetic component and a second magnetic component that are opposite to each other and spaced apart along the first direction. The stator component is disposed between the first magnetic component and the second magnetic component and is spaced apart from the first magnetic component and the second magnetic component, respectively. The first direction, the second direction and the third direction are perpendicular to each other.

3. The vibration device according to claim 1, characterized in that The bracket includes a main body, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are respectively arranged at two ends of the main body along the second direction, and the first coil surrounds the outside of the main body and is located between the first fixing part and the second fixing part.

4. The vibration device according to claim 3, characterized in that The projection areas of the first fixing portion and the second fixing portion along the second direction are larger than the projection area of ​​the main body along the second direction, the first fixing portion is provided with first limiting grooves on opposite sides along the first direction, and the second fixing portion is provided with second limiting grooves on opposite sides along the first direction, and the second coil is respectively arranged in the first limiting groove and the second limiting groove.

5. The vibration device according to claim 2, characterized in that The first magnetic component and the second magnetic component each include a central magnet, a first side magnet, a second side magnet and a magnetic conductive plate, the magnetic conductive plate is bent toward the stator component at both ends along the second direction to form an installation space, the central magnet, the first side magnet and the second side magnet are all located in the installation space and are respectively connected to the magnetic conductive plate, and the first side magnet and the second side magnet are respectively arranged on opposite sides of the central magnet along the second direction.

6. The vibration device according to claim 2, characterized in that The vibrator assembly further includes a mass block, the mass block is located in the accommodating cavity, the mass block has an accommodating cavity, and the first magnetic assembly and the second magnetic assembly are both fixed in the accommodating cavity.

7. The vibration device according to claim 6, characterized in that The vibration device also includes two spring sheets, which are respectively arranged on both sides of the mass block along the second direction. The spring sheet includes a first fixed end fixedly connected to the mass block, a second fixed end fixedly connected to the shell, and an elastic arm located between the first fixed end and the second fixed end.

8. The vibration device according to claim 7, characterized in that The vibration device further comprises a damping member, and the damping member is arranged between the elastic arm and the mass block.

9. The vibration device according to any one of claims 1 to 8, characterized in that: The housing comprises a bottom plate and a shell, the shell has an open end, the bottom plate is covered on the open end, the bottom plate and the shell are combined to form the accommodating cavity, and the bracket is connected to the bottom plate; And / or, the bracket is an iron core.

10. An electronic device, characterized in that: A vibration device according to any one of claims 1 to 9 is provided.

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