Vibration motor and electronic device

Abstract

The utility model belongs to the technical field of vibration motors, and particularly relates to a vibration motor and electronic equipment. The vibration motor comprises a shell assembly, a vibrator assembly and a stator assembly, the shell assembly and the shell assembly are internally provided with an accommodating cavity, the vibrator assembly comprises a mass block, a first magnetic assembly and a second magnetic assembly which are respectively arranged in the accommodating cavity, an accommodating space is formed in the mass block, the mass block is a magnetic conducting piece, and the stator assembly is arranged in the accommodating space. The first magnetic assembly and the second magnetic assembly are both arranged in the containing space, the first magnetic assembly and the second magnetic assembly are oppositely arranged in the direction perpendicular to the vibration direction of the mass block, the stator assembly is arranged in the containing cavity, the stator assembly comprises a coil, and the coil is located between the first magnetic assembly and the second magnetic assembly. According to the technical scheme of the utility model, the mass block is the magnetic conductive member, and the magnetic conductive mass block can improve the utilization rate of the magnetic field intensity, thereby greatly improving the magnetic field intensity of the oscillator assembly.

Description

Technical Field

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

[0002] With the development and application of haptic feedback mechanisms 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, currently, the utilization rate of the magnetic field strength of linear motors during operation is relatively low, which affects the magnetic field strength and vibration effect of the product. Utility Model Content

[0003] The purpose of this invention is to at least solve the problem of low magnetic field strength utilization in existing linear motors. This purpose is achieved through the following technical solution:

[0004] The first aspect of this utility model provides an oscillator assembly, comprising:

[0005] A housing assembly having a receiving cavity therein;

[0006] The oscillator assembly includes a mass block, a first magnetic component, and a second magnetic component respectively disposed in the accommodating cavity. The mass block has a receiving space and is a magnetically conductive component. The first magnetic component and the second magnetic component are both disposed in the receiving space and are disposed opposite to each other in a direction perpendicular to the vibration direction of the mass block.

[0007] A stator assembly is disposed in the accommodating cavity, the stator assembly including a coil located between the first magnetic assembly and the second magnetic assembly.

[0008] According to the technical solution of this utility model, the mass block is used to fix the first magnetic component and the second magnetic component, which can improve the vibration effect. By setting the first magnetic component and the second magnetic component opposite to each other, the magnetic field strength can be increased during vibration operation, and the vibration effect of the product can be improved. The magnetically conductive mass block can improve the utilization rate of the magnetic field strength and significantly improve the magnetic field strength of the oscillator component.

[0009] In addition, the oscillator assembly according to this utility model may also have the following additional technical features:

[0010] In some embodiments of this utility model, both the first magnetic component and the second magnetic component include a first magnet, a second magnet, and a third magnet arranged along the vibration direction of the mass block.

[0011] In some embodiments of this utility model, the magnetization direction of the first magnet, the magnetization direction of the second magnet, and the magnetization direction of the third magnet are all perpendicular to the vibration direction of the mass block, and the magnetization direction of the first magnet and the magnetization direction of the third magnet are respectively set opposite to the magnetization direction of the second magnet.

[0012] In some embodiments of this invention, the magnetization directions of the magnets corresponding to the first magnetic component and the second magnetic component are opposite.

[0013] In some embodiments of this invention, along the vibration direction of the mass block, the lengths of the magnets corresponding to the first magnetic component and the second magnetic component are the same.

[0014] In some embodiments of this invention, the length of the second magnetic component is greater than the length of the coil along the vibration direction of the mass block.

[0015] In some embodiments of this utility model, the accommodating space has a first sidewall and a second sidewall disposed opposite to each other, the first magnetic component is adhered to the first sidewall, and the second magnetic component is adhered to the second sidewall.

[0016] In some embodiments of this utility model, the stator assembly further includes an iron core, the iron core including a main body and pole shoes located at both ends of the main body, the axis of the main body being parallel to the vibration direction of the mass block, and the coil being wound around the outside of the main body and located between the two pole shoes.

[0017] In some embodiments of this utility model, the end face of the pole shoe away from the coil has a protrusion.

[0018] The second aspect of this utility model provides an electronic device having the aforementioned vibration motor. 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 scope of 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 structure of the oscillator assembly according to an embodiment of the present invention is shown.

[0021] Figure 2 A schematic diagram of the oscillator assembly according to an embodiment of the present invention is shown from another perspective.

[0022] The labels in the attached diagram are as follows:

[0023] 10. Mass block; 11. Receiving space; 12. First sidewall; 13. Second sidewall;

[0024] 21. First magnetic component; 211. First magnet; 212. Second magnet; 213. Third magnet; 22. Second magnetic component;

[0025] 31. Iron core; 311. Main body; 312. Pole shoe; 313. Protrusion; 32. Coil. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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 "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0030] With the development and application of haptic feedback mechanisms 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, currently, the utilization rate of the magnetic field strength of linear motors during operation is relatively low, which affects the magnetic field strength and vibration effect of the product.

[0031] Figure 1 A schematic diagram of the structure of an oscillator assembly according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the oscillator assembly according to an embodiment of the present invention is shown from another perspective. For example... Figure 1 and 2 As shown, this utility model proposes a vibrating motor and electronic device. The vibrating motor of this utility model includes a housing assembly, a vibrating element assembly, and a stator assembly. The housing assembly has a receiving cavity. The vibrating element assembly includes a mass block 10, a first magnetic component 21, and a second magnetic component 22, which are respectively disposed in the receiving cavity. The mass block 10 has a receiving space 11 and is a magnetic conductive element. The first magnetic component 21 and the second magnetic component 22 are both disposed in the receiving space 11 and are arranged opposite each other in a direction perpendicular to the vibration direction of the mass block 10. The stator assembly is disposed in the receiving cavity and includes a coil 32, which is located between the first magnetic component 21 and the second magnetic component 22.

[0032] According to the technical solution of this utility model, the mass block 10 is used to fix the first magnetic component 21 and the second magnetic component 22, which can improve the vibration effect. By setting the first magnetic component 21 and the second magnetic component 22 opposite to each other, the magnetic field strength can be increased during vibration operation, and the vibration effect of the product can be improved. The magnetically conductive mass block 10 can improve the utilization rate of the magnetic field strength and significantly improve the magnetic field strength of the oscillator component.

[0033] In some embodiments of this utility model, such as Figure 1 and 2 As shown, both the first magnetic component 21 and the second magnetic component 22 include a first magnet 211, a second magnet 212, and a third magnet 213 arranged along the vibration direction of the mass block 10. In this embodiment, the first magnet 211 and the third magnet 213 are respectively provided on both sides of the second magnet 212 along the vibration direction. When the stator component of the vibration device is energized, the driving force between the stator component and the first magnetic component 21, as well as between the stator component and the second magnetic component 22, can be increased, thereby improving the vibration feedback efficiency of the oscillator component.

[0034] In some embodiments of this utility model, such as Figure 2 As shown, the arrows indicate the magnetization direction. The magnetization directions of the first magnet 211, the second magnet 212, and the third magnet 213 are all perpendicular to the vibration direction of the mass block 10. In this embodiment, the magnetization directions of the first magnet 211, the second magnet 212, and the third magnet 213 are arranged as described above, which enables the magnetic fields of the three magnets to interact with the magnetic field of the coil 32 when it is energized. Since the coil 32 is fixed, the mass block 10 and the entire oscillator assembly vibrate along the vibration direction.

[0035] Specifically, such as Figure 2 As shown, the magnetization directions of the first magnet 211 and the third magnet 213 are respectively set opposite to the magnetization direction of the second magnet 212, which enables the magnetic field lines between the first magnet 211 and the second magnet 212, as well as between the second magnet 212 and the third magnet 213, to be combined, thereby improving the overall magnetic effect of the first magnetic component 21 and the second magnetic component 22, and enhancing the magnetic field effect between the stator component and the oscillator component.

[0036] In some embodiments of this utility model, such as Figure 2 As shown, the magnetization directions of the magnets corresponding to the first magnetic component 21 and the second magnetic component 22 are opposite. In this embodiment, when the stator assembly is energized, it can be ensured that the stator assembly generates magnetic driving forces in the same direction on the first magnetic component 21 and the second magnetic component 22, thereby enabling the oscillator assembly to vibrate stably.

[0037] In some embodiments of this utility model, such as Figure 2 As shown, along the vibration direction of the mass block 10, the magnets corresponding to the first magnetic component 21 and the second magnetic component 22 have the same length. In this embodiment, when the coil 32 is energized, the above arrangement enables a more uniform magnetic field line interaction between the first magnetic component 21 and the second magnetic component 22 and the coil 32, thereby improving the vibration stability of the oscillator assembly.

[0038] In some embodiments of this utility model, such as Figure 2 As shown, along the vibration direction of the mass block 10, the length of the second magnetic component is greater than the length of the coil 32. In this embodiment, the above arrangement enables the second magnetic component to interact with the coil 32 with magnetic field lines to the greatest extent, thereby increasing the magnetic field strength of the oscillator assembly.

[0039] In some embodiments of this utility model, the accommodating space 11 has a first sidewall 12 and a second sidewall 13 disposed opposite to each other. The first magnetic component 21 is bonded to the first sidewall 12, and the second magnetic component 22 is bonded to the second sidewall 13. In this embodiment, bonding the first magnetic component 21 to the first sidewall 12 and the second magnetic component 22 to the second sidewall 13 can improve the stable connection between the first magnetic component 21 and the mass block 10, as well as between the second magnetic component 22 and the mass block 10, thereby improving reliability.

[0040] In some embodiments of this invention, the stator assembly further includes an iron core 31. The iron core 31 includes a main body 311 and pole shoes 312 located at both ends of the main body. The axial direction of the main body 311 is parallel to the vibration direction of the mass block 10. The coil 32 is wound around the outside of the main body 311 and located between the two pole shoes 312. In this embodiment, the main body 311 is used for winding the coil 32, and the pole shoes 312 are used to enhance the magnetic field strength, limit the two ends of the coil 32 along the vibration direction of the mass block 10, and fix it to the housing assembly, thereby improving reliability.

[0041] In some embodiments of this utility model, the end face of the pole shoe 312 away from the coil 32 is provided with a protrusion 313 to further enhance the magnetic field strength.

[0042] In some embodiments of this invention, the coil 32 has gaps between itself and the first magnetic component 21 and the second magnetic component 22. In this embodiment, the gaps ensure that the first magnetic component 21 and the second magnetic component 22 do not interfere with the coil 32 when vibrating along the vibration direction of the mass block 10, thus improving reliability.

[0043] Furthermore, in this embodiment, a washer is not required between the first magnetic component 21 and the first sidewall 12, or between the second magnetic component 22 and the second sidewall 13, thus saving material for the overall oscillator assembly and reducing costs without affecting the vibration effect of the oscillator assembly. Moreover, the oscillator assembly in this embodiment is particularly suitable for applications of lightweight vibration devices.

[0044] Furthermore, the outer casing assembly includes a base plate and a casing. The casing has an open end, and the base plate covers the open end. The base plate and the casing together form an accommodating cavity, and the iron core 31 is connected to the base plate. In this embodiment, the outer casing assembly adopts a combined structure of a casing and a base plate, which facilitates the assembly and disassembly of the vibration motor. At the same time, the casing has an open end, and the base plate is located at the open end, which can seal the oscillator assembly and the stator assembly, thus providing a certain degree of sealing.

[0045] This invention also proposes an electronic device having the aforementioned vibration motor.

[0046] According to the vibration motor of the electronic device of this utility model, the mass block 10 is used to fix the first magnetic component 21 and the second magnetic component 22, which can improve the vibration effect. By setting the first magnetic component 21 and the second magnetic component 22 opposite to each other, the magnetic field strength can be increased during vibration operation, and the vibration effect of the product can be improved. The magnetically conductive mass block 10 can improve the utilization rate of the magnetic field strength and significantly improve the magnetic field strength of the oscillator component.

[0047] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model 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 this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vibration motor, characterized in that, include: A housing assembly having a receiving cavity therein; The oscillator assembly includes a mass block, a first magnetic component, and a second magnetic component respectively disposed in the accommodating cavity. The mass block has a receiving space and is a magnetically conductive component. The first magnetic component and the second magnetic component are both disposed in the receiving space and are disposed opposite to each other in a direction perpendicular to the vibration direction of the mass block. A stator assembly is disposed in the accommodating cavity, the stator assembly including a coil located between the first magnetic assembly and the second magnetic assembly.

2. The vibration motor according to claim 1, characterized in that, Both the first magnetic component and the second magnetic component include a first magnet, a second magnet, and a third magnet arranged along the vibration direction of the mass block.

3. The vibration motor according to claim 2, characterized in that, The magnetization directions of the first magnet, the second magnet, and the third magnet are all perpendicular to the vibration direction of the mass block, and the magnetization directions of the first magnet and the third magnet are respectively set opposite to the magnetization direction of the second magnet.

4. The vibration motor according to claim 2, characterized in that, The magnetization directions of the magnets corresponding to the first magnetic component and the second magnetic component are opposite.

5. The vibration motor according to claim 2, characterized in that, Along the vibration direction of the mass block, the magnets corresponding to the first magnetic component and the second magnetic component have the same length.

6. The vibration motor according to claim 2, characterized in that, Along the vibration direction of the mass block, the length of the second magnetic component is greater than the length of the coil.

7. The vibration motor according to claim 1, characterized in that, The accommodating space has a first sidewall and a second sidewall disposed opposite to each other, the first magnetic component is adhered to the first sidewall, and the second magnetic component is adhered to the second sidewall.

8. The vibration motor according to claim 1, characterized in that, The stator assembly further includes an iron core, which includes a main body and pole shoes located at both ends of the main body. The axis of the main body is parallel to the vibration direction of the mass block, and the coil is wound around the outside of the main body and located between the two pole shoes.

9. The vibration motor according to claim 8, characterized in that, The end face of the pole shoe away from the coil has a protrusion.

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

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