Vibration motors and electronic devices

Abstract

This application discloses a vibration motor and an electronic device. The vibration motor includes a housing, an oscillator, and a coil assembly; the oscillator is disposed within the housing; the coil assembly is disposed within the housing, located on a first side of the oscillator, and is capable of driving the oscillator to rotate, so that the oscillator can generate vibration in at least two directions.

Description

Technical Field

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

[0002] Currently, electronic devices are equipped with vibration motors. When the vibration motor is working, the electronic device can generate vibrations, which can then prompt customers or provide tactile feedback.

[0003] In related technologies, a vibration motor includes a coil and an oscillator. The coil can drive the oscillator to reciprocate along a straight line. Electronic devices vibrate under the drive of the vibration motor. However, since the oscillator can only reciprocate along a straight line, the vibration motor can only generate vibration in one direction, thereby reducing the vibration sensation of the electronic device. Summary of the Invention

[0004] This application aims to provide a vibration motor and electronic device that can solve the problem that the oscillator can only reciprocate in a straight line and the vibration motor can only generate vibration in one direction, thereby reducing the vibration sensation of the electronic device.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a vibration motor, including a housing, an oscillator, and a coil assembly; the oscillator is disposed within the housing; the coil assembly is disposed within the housing, located on a first side of the oscillator, and is capable of driving the oscillator to rotate so that the oscillator can generate vibrations in at least two directions.

[0007] Secondly, embodiments of this application propose an electronic device including a vibration motor as described in any of the above technical solutions.

[0008] The vibration motor provided in this application includes a housing and an oscillator. The oscillator is housed within the housing, which supports and protects it, thus improving the stability of the oscillator assembly during motor operation. The vibration motor also includes a coil assembly located on the first side of the oscillator. This coil assembly drives the oscillator to rotate, thereby causing the electronic device to vibrate. The electronic device can then use vibration to alert the customer or provide tactile feedback to the user. Because the vibration motor drives the electronic device to vibrate through the rotation of the oscillator, the oscillator generates force components in at least two directions during rotation, causing the electronic device to vibrate in at least two directions, thus enhancing the vibration sensation. Since the electronic device can generate vibration in at least two directions, users can experience stronger vibrations in various ways of holding the device, providing a richer vibration experience.

[0009] The electronic device provided in this application includes a vibration motor as described in any of the above technical solutions, and therefore the electronic device possesses all the beneficial effects of a vibration motor as described in any of the above technical solutions.

[0010] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0011] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0012] Figure 1 This is one of the exploded views of a vibration motor according to an embodiment of this application;

[0013] Figure 2 This is one of the structural schematic diagrams of a vibration motor according to an embodiment of this application;

[0014] Figure 3 This is one of the cross-sectional schematic diagrams of a vibration motor according to an embodiment of this application;

[0015] Figure 4 This is a second cross-sectional schematic diagram of a vibration motor according to an embodiment of this application;

[0016] Figure 5 This is a third cross-sectional schematic diagram of a vibration motor according to an embodiment of this application;

[0017] Figure 6 This is a schematic diagram of a user holding an electronic device according to an embodiment of this application;

[0018] Figure 7 This is one of the schematic diagrams of an electronic device according to an embodiment of this application;

[0019] Figure 8 This is a second schematic diagram of an electronic device according to an embodiment of this application;

[0020] Figure 9 This is a second exploded view of a vibration motor according to an embodiment of this application;

[0021] Figure 10 This is a schematic diagram of the interaction between the oscillator and the coil assembly according to an embodiment of this application;

[0022] Figure 11 This is one of the schematic diagrams showing the rotational state of the oscillator and the energized state of the coil assembly according to an embodiment of this application;

[0023] Figure 12 This is a second schematic diagram of the rotation state of the oscillator and the energization state of the coil assembly according to an embodiment of this application;

[0024] Figure 13 This is a second schematic diagram of the structure of a vibration motor according to an embodiment of this application;

[0025] Figure 14 This is the third structural schematic diagram of a vibration motor according to an embodiment of this application.

[0026] Figure label:

[0027] 10 Vibration motor, 100 Housing, 110 Mounting cavity, 120 Body, 130 Base plate, 200 Vibrator, 210 First magnet, 220 Second magnet, 230 Third magnet, 300 Coil assembly, 310 First coil, 320 Second coil, 400 Elastic element, 410 Spring, 500 Circuit board, 20 Electronic equipment. Detailed Implementation

[0028] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] The following is combined Figures 1 to 14 This application describes a vibration motor 10 and an electronic device 20 according to embodiments thereof.

[0033] like Figure 1 and Figure 2 As shown, a vibration motor 10 according to some embodiments of this application includes a housing 100, an oscillator 200, and a coil assembly 300; the oscillator 200 is disposed inside the housing 100; the coil assembly 300 is disposed inside the housing 100, located on the first side of the oscillator 200, and is capable of driving the oscillator 200 to rotate so that the oscillator 200 can generate vibration in at least two directions.

[0034] In this embodiment, the vibration motor 10 includes a housing 100 and an oscillator 200. The oscillator 200 is disposed within the housing 100, thereby supporting and protecting the oscillator 200 and improving the stability of the oscillator 200 assembly during the operation of the vibration motor 10. The vibration motor 10 also includes a coil assembly 300, which is disposed on the first side of the oscillator 200 and can drive the oscillator 200 to rotate. The rotation of the oscillator 200 causes the electronic device 20 to vibrate, enabling the electronic device 20 to alert the customer or provide tactile feedback to the user through vibration. Since the vibration motor 10 drives the electronic device 20 to vibrate through the rotation of the oscillator 200, the oscillator 200 can generate force components in at least two directions during rotation, thereby causing the electronic device 20 to vibrate in at least two directions and enhancing the vibration sensation of the electronic device 20. Since the electronic device 20 can generate vibration in at least two directions, users can feel strong vibrations in various ways of holding the electronic device 20, thus providing users with a richer vibration experience.

[0035] Furthermore, such as Figure 3 As shown, when the coil assembly 300 is energized, the oscillator 200 is in its initial state, as follows: Figure 4 and Figure 5As shown, when the electronic device 20 needs to vibrate, the electronic device 20 can energize the coil assembly 300. After the coil assembly 300 is energized, it generates current. The current flows in the wires of the coil assembly 300 and generates a magnetic field. The oscillator 200 is subjected to force in the magnetic field and thus rotates. The rotation of the oscillator 200 drives the electronic device 20 to vibrate.

[0036] like Figure 4 and Figure 5 As shown, oscillator 200 along Figure 4 Rotate or along the direction indicated by the middle arrow E Figure 5 When rotating in the direction indicated by the middle arrow I, the oscillator 200 will exert a thrust on the housing 100. In a plane perpendicular to the axis of rotation of the oscillator 200, the thrust F on the housing 100 has at least two component forces in that plane, namely component force Fy and component force Fz, thereby enabling the electronic device 20 to vibrate in at least two directions.

[0037] For example, such as Figure 6 and Figure 7 As shown, when the user holds the electronic device 20 horizontally, the rotation of the oscillator 200 will generate a component force Fy on the Y-axis. This component force Fy can make the electronic device 20 move along the Y-axis, thereby transmitting a vibration to the user.

[0038] like Figure 8 As shown, while the electronic device 20 transmits vibration to the user through the movement of the Y-axis, it also generates a component force Fz on the Z-axis. This component force Fz can cause the electronic device 20 to move along the Z-axis, thereby transmitting vibration to the user in the thickness direction of the electronic device 20.

[0039] Furthermore, the oscillator 200 is magnetic.

[0040] Furthermore, the coil assembly 300 is disposed on one side of the oscillator 200 in the direction of the rotation axis and is fixed to the inner wall of the housing 100.

[0041] According to some embodiments of this application, such as Figure 1 and Figure 9 As shown, the coil assembly 300 includes a first coil 310 and a second coil 320; the second coil 320 is electrically connected to the first coil 310 and is arranged in parallel with the first coil 310; wherein the winding direction of the first coil 310 is opposite to the winding direction of the second coil 320.

[0042] In this embodiment, the coil assembly 300 includes a first coil 310 and a second coil 320. The second coil 320 is electrically connected to the first coil 310. When the electronic device 20 powers the vibration motor 10, current flows sequentially through the first coil 310 and the second coil 320. The winding direction of the first coil 310 is opposite to that of the second coil 320. When current flows sequentially through the first coil 310 and the second coil 320, the magnetic field generated around the first coil 310 is opposite to the magnetic field generated around the second coil 320. This allows the first coil 310 and the second coil 320 to work together to rotate the oscillator 200, thereby driving the oscillator 200.

[0043] Furthermore, when controlling the vibration of the electronic device 20, the current direction of the first coil 310 and the second coil 320 can be switched at a certain frequency, so that the magnetic field generated by the first coil 310 and the second coil 320 also changes with the change of current direction, and the oscillator 200 can rotate back and forth within a certain angle, further enhancing the vibration of the electronic device 20.

[0044] Furthermore, the first coil 310 and the second coil 320 are located in the same plane.

[0045] If the first coil 310 is wound clockwise, then the second coil 320 is wound counterclockwise. If the first coil 310 is wound counterclockwise, then the second coil 320 is wound clockwise.

[0046] Specifically, such as Figure 10 As shown, a copper wire is wound counterclockwise and then clockwise to form a first coil 310 and a second coil 320. When energized, the current in the first coil 310 is counterclockwise, and the current in the second coil 320 is clockwise. The counterclockwise current corresponds to the south pole of the S-magnetic field inside and the north pole of the N-magnetic field outside, while the clockwise current corresponds to the N-magnetic field inside and the S-magnetic field outside. Alternatively, the energizer can be reversed, meaning the current in the first coil 310 is clockwise and the current in the second coil 320 is counterclockwise.

[0047] like Figure 10 As shown, when the coil assembly 300 is not energized, there is no current in the coil assembly 300 and no magnetic field is formed around the coil assembly 300, and the oscillator 200 is in the initial position.

[0048] like Figure 11 As shown, when the coil assembly 300 is energized, the current direction of the first coil 310 is counterclockwise, and the current direction of the second coil 320 is clockwise. That is, the current directions of the first coil 310 and the second coil 320 are... Figure 11As indicated by the middle arrow G, the magnetic field generated by the first coil 310 is S-inside and N-outside, while the magnetic field generated by the second coil 320 is N-inside and S-outside. The S pole of the magnetic field on the side of the first coil 310 opposite to the oscillator 200 attracts the N pole of the oscillator 200, and the N pole of the magnetic field on the side of the second coil 320 opposite to the oscillator 200 attracts the S pole of the oscillator 200. The resulting driving force can drive the oscillator 200 to rotate clockwise, that is, drive the oscillator 200 along... Figure 11 Rotate in the direction indicated by the middle arrow C.

[0049] like Figure 12 As shown, when the current direction of the coil assembly 300 is changed, the current direction of the first coil 310 is clockwise, and the current direction of the second coil 320 is counterclockwise. That is, the current directions of the first coil 310 and the second coil 320 are... Figure 12 As indicated by the middle arrow H, the magnetic field generated by the first coil 310 is N inside and S outside, while the magnetic field generated by the second coil 320 is S inside and N outside. The N pole of the magnetic field on the side of the first coil 310 opposite to the oscillator 200 attracts the S pole of the oscillator 200, and the S pole of the magnetic field on the side of the second coil 320 opposite to the oscillator 200 attracts the N pole of the oscillator 200. The resulting driving force can drive the oscillator 200 to rotate clockwise, that is, drive the oscillator 200 along... Figure 12 Rotate in the direction indicated by the middle arrow D.

[0050] That is, when the direction of the current is changed, the rotation direction of the oscillator 200 also changes accordingly.

[0051] When the coil assembly 300 is energized, due to the different winding methods of the first coil 310 and the second coil 320, the first coil 310 and the second coil 320 generate opposing magnetic fields. The magnetic fields generated by the first coil 310 and the second coil 320 interact with the oscillator 200, allowing the oscillator 200 to move left and right in the horizontal direction, that is, to move along the X-axis.

[0052] That is, when the coil assembly 300 is energized, the oscillator 200 can move in the X-axis direction and rotate to a certain extent in the Y-axis and Z-axis directions, thus realizing multi-mode vibration.

[0053] According to some embodiments of this application, the outer end of the first coil 310 is connected to the outer end of the second coil 320. Alternatively, the inner end of the first coil 310 is connected to the inner end of the second coil 320.

[0054] In this embodiment, the first coil 310 and the second coil 320 can be connected through the outer end, and the first coil 310 and the second coil 320 can also be connected through the inner end, so that when the first coil 310 and the second coil 320 are energized, they can generate magnetic fields in opposite directions, thereby enabling the first coil 310 and the second coil 320 to drive the oscillator 200 to rotate.

[0055] Furthermore, when the outer end of the first coil 310 is connected to the outer end of the second coil 320, the current enters the first coil 310 and the second coil 320 from the inner end of the first coil 310, and then flows out of the first coil 310 and the second coil 320 from the inner end of the second coil 320.

[0056] When the inner end of the first coil 310 is connected to the inner end of the second coil 320, the current enters the first coil 310 and the second coil 320 from the outer end of the first coil 310, and then flows out of the first coil 310 and the second coil 320 from the outer end of the second coil 320.

[0057] According to some embodiments of this application, such as Figure 9 As shown, the oscillator 200 includes a first magnet 210, which is an integral structure.

[0058] In this embodiment, the oscillator 200 includes a first magnet 210, which is an integral structure, that is, the oscillator 200 is a single magnet, which reduces the processing difficulty of the oscillator 200 and simplifies the processing technology of the oscillator 200.

[0059] Furthermore, the oscillator 200 is a cuboid, and the length direction of the oscillator 200 is arranged along the rotation axis of the oscillator 200.

[0060] The oscillator 200 can also be a triangular prism or a hexagonal prism.

[0061] Since the oscillator 200 is a cuboid, triangular prism, or hexagonal prism, the distance between each point on the edge of the oscillator 200 and the axis of rotation of the oscillator 200 is different. The oscillator 200 will generate a large centrifugal force during rotation, and thus the oscillator 200 will have a large axial runout during rotation, which further enhances the vibration sensation that the vibration motor 10 can provide to the electronic device 20.

[0062] According to some embodiments of this application, such as Figure 9 As shown, the direction of the magnetic field lines inside the first magnet 210 is the second direction, the cross section of the first magnet 210 is the first section, the first section is perpendicular to the rotation axis of the oscillator 200, and the second direction is set along the diagonal of the first section.

[0063] In this embodiment, the direction of the magnetic field lines inside the first magnet 210 is the second direction, which is set along the diagonal of the first cross section, so that the magnetic field generated by the coil assembly 300 has a certain angle with the magnetization direction of the oscillator 200, thereby enabling the coil assembly 300 to drive the oscillator 200 to rotate more smoothly after being energized.

[0064] Specifically, the second direction is Figure 10 The direction indicated by the middle arrow B.

[0065] According to some embodiments of this application, such as Figure 10 As shown, the second coil 320 and the first coil 310 are arranged side by side along the first direction, and the projections of the first direction and the second direction on the first cross section intersect.

[0066] In this embodiment, the projections of the first direction and the second direction on the first cross section intersect, increasing the angle between the magnetic field generated by the coil assembly 300 and the magnetization direction of the oscillator 200, thereby increasing the driving force of the coil assembly 300 on the oscillator 200 and further enhancing the vibration intensity of the electronic device 20.

[0067] Specifically, the first cross-section is a square, and the second direction is arranged along one diagonal of the square, forming a 45-degree angle with the horizontal plane. The first direction is arranged along the other diagonal of the square.

[0068] Specifically, the first direction is Figure 10 The direction indicated by the middle arrow A.

[0069] According to some embodiments of this application, such as Figure 1 As shown, the oscillator 200 includes a second magnet 220 and a third magnet 230, with the third magnet 230 arranged in parallel with the second magnet 220; wherein the direction of the magnetic field lines inside the second magnet 220 is opposite to the direction of the magnetic field lines inside the third magnet 230.

[0070] In this embodiment, the oscillator 200 may also be composed of two magnets with opposite directions of internal magnetic field lines. The oscillator 200 formed by the second magnet 220 and the third magnet 230 arranged side by side can further enhance the driving force of the coil assembly 300 on the oscillator 200, thereby enhancing the vibration intensity of the electronic device 20.

[0071] Specifically, the second magnet 220 is magnetized in a direction perpendicular to the rotation axis of the oscillator 200, and the third magnet 230 is magnetized in a direction perpendicular to the rotation axis of the oscillator 200. The direction of the magnetic field lines inside the second magnet 220 is opposite to the direction of the magnetic field lines inside the third magnet 230.

[0072] According to some embodiments of this application, the second magnet 220 is opposite to a portion of the first coil 310 and to a portion of the second coil 320; the third magnet 230 is opposite to another portion of the first coil 310 and to another portion of the second coil 320.

[0073] In this embodiment, the second magnet 220 is opposite to a portion of the first coil 310 and also opposite to a portion of the second coil 320; that is, the second magnet 220 is neither directly opposite the first coil 310 nor the second coil 320. The third magnet 230 is opposite to another portion of the first coil 310 and also opposite to another portion of the second coil 320; that is, the third magnet 230 is neither directly opposite the first coil 310 nor the second magnet 220. This arrangement of the oscillator 200 and the coil assembly 300 allows the magnetic field generated by the coil assembly 300 to give the oscillator 200, located within the magnetic field, a greater tangential force, thereby increasing the rotational speed of the oscillator 200 and further enhancing the vibration intensity of the electronic device 20.

[0074] Furthermore, the second magnet 220 and the third magnet 230 are bonded together.

[0075] According to some embodiments of this application, both the second magnet 220 and the third magnet 230 are triangular pyramidal in shape, with the bottom surface of the second magnet 220 and the bottom surface of the third magnet 230 facing each other.

[0076] In this embodiment, both the second magnet 220 and the third magnet 230 are triangular pyramidal in shape, with the bottom surface of the second magnet 220 and the bottom surface of the third magnet 230 facing each other, which further reduces the manufacturing difficulty of the oscillator 200.

[0077] Furthermore, such as Figure 1 As shown, the second magnetic field can also be a triangular prism with a triangular cross-section, and the third magnet 230 can also be a triangular prism with a triangular cross-section.

[0078] According to some embodiments of this application, such as Figure 1 and Figure 3 As shown, the vibration motor 10 also includes an elastic element 400, the first end of which is connected to the housing 100 and the second end of which is connected to the second side of the vibrator 200; wherein the first side and the second side of the vibrator 200 are adjacent sides of the vibrator 200.

[0079] In this embodiment, the vibration motor 10 further includes an elastic element 400. The first end of the elastic element 400 is connected to the housing 100, and the second end is connected to the second side of the vibrator 200. The elastic element 400 limits the movement of the vibrator 200, improving its stability during rotation. Furthermore, limiting the movement of the vibrator 200 by the elastic element 400 reduces the risk of the vibrator 200 contacting the housing 100 without hindering its rotation, thus preventing abnormal noise from the vibrator 200 impacting the housing 100 when the electronic device 20 vibrates.

[0080] Furthermore, when the vibration motor 10 is equipped with an elastic element 400, the oscillator 200 is limited by the elastic element 400. The vibration motor 10 can also limit the oscillator 200 by controlling the magnetic field generated by the coil assembly 300.

[0081] Compared to limiting the vibrator 200 by using the magnetic field generated by the coil assembly 300, limiting the vibrator 200 by using the elastic element 400 eliminates the need to install the elastic element 400 inside the housing 100, thus simplifying the structure of the vibration motor 10.

[0082] Compared to limiting the oscillator 200 by means of the magnetic field generated by the coil assembly 300, the elastic element 400 can reduce the risk of the oscillator 200 contacting the housing 100, thereby avoiding abnormal noises caused by the oscillator 200 hitting the housing 100 when the electronic device 20 vibrates.

[0083] Furthermore, the number of elastic elements 400 is multiple sets, and the multiple sets of elastic elements 400 are respectively arranged on both sides of the oscillator 200, that is, on both sides in the direction perpendicular to the rotation axis of the oscillator 200.

[0084] The number of elastic elements 400 can be four sets, with two sets of elastic elements 400 set on each side of the vibrator 200.

[0085] The number of elastic elements 400 can also be six sets, with three sets of elastic elements 400 set on each side of the vibrator 200.

[0086] According to some embodiments of this application, such as Figure 1 and Figure 3 As shown, the elastic element 400 includes multiple spring pieces 410, which are stacked and connected end to end in sequence.

[0087] In this embodiment, the elastic element 400 includes a plurality of spring pieces 410, which are stacked and connected end to end in sequence. The plurality of spring pieces 410 cooperate with the coil assembly 300 to drive the oscillator 200 to rotate and slide along the rotation axis, thereby enabling the oscillator 200 to provide vibration to the electronic device 20 in a third direction, further enhancing the vibration of the electronic device 20.

[0088] Specifically, after the coil assembly 300 is energized, the coil assembly 300 located on one side of the oscillator 200 can be energized, thereby generating a certain attraction between the coil assembly 300 and the oscillator 200, causing the oscillator 200 to move closer to the coil assembly 300 along the rotation axis of the oscillator 200. After the coil assembly 300 is de-energized, the oscillator 200 can be reset under the action of multiple springs 410.

[0089] Without the elastic element 400, the position of the oscillator 200 in the direction of the rotation axis can be controlled by controlling the magnetic fields on both sides of the oscillator 200.

[0090] Specifically, such as Figure 13 and Figure 14 As shown, the vibration motor 10 not only vibrates linearly in the X-axis direction, but also moves along the Y and Z axes in space, providing a richer vibration experience. When the vibration motor 10 moves along the X-axis under voltage drive, the change in the Ampere force on the coils and magnets with symmetrical structures at both ends of the motor causes it to rotate left and right in space. This process is completed by the traction of the spring 410.

[0091] Specifically, the setting of the spring 410 can be changed according to the usage scenario of the vibration motor 10. By adjusting the number, folding degree, material, etc. of the spring 410, the frequency range of the vibration motor 10 can be widened, thereby making the vibration motor 10 more flexible.

[0092] Furthermore, the elastic element 400 is a single leaf spring, with each leaf spring bent at least three times, forming at least four sequentially connected leaf springs 410. The number of folds and the spring material can be adjusted according to the frequency of the vibration motor 10. When the oscillator 200 moves, it experiences forces in the X, Y, and Z directions, allowing the leaf spring to be stretched in all directions.

[0093] Springs can be W-shaped or V-shaped, or a combination of multiple W-shaped and / or multiple V-shaped springs.

[0094] The oscillator 200 is connected to the housing 100 through two W-shaped elastic elements 400. When the oscillator 200 rotates, the force is transmitted through the elastic elements 400. The force components in the Y-axis and Z-axis directions cause the motor to generate multi-directional vibration. When the frequency of the change of the current at both ends is consistent with the resonant frequency of the elastic element 400 in the X-axis direction, the movable sub-assembly performs reciprocating motion in the X-axis direction, and the motor generates vibration in the X direction.

[0095] According to some embodiments of this application, such as Figure 1 As shown, there are two sets of coil assemblies 300, with the two sets of coil assemblies 300 respectively located on both sides of the vibrator 200.

[0096] In this embodiment, there are two sets of coil assemblies 300, which are respectively disposed on both sides of the oscillator 200. This allows the electronic device 20 to control the movement state of the oscillator 200 by controlling the current intensity and current direction connected to the coil assemblies 300, thereby improving the flexibility of the oscillator 200's movement.

[0097] Furthermore, the two sets of coil assemblies 300 have the same winding method. That is, the first coils 310 of the two sets of coil assemblies 300 are opposite each other in the direction of the rotation axis of the oscillator 200, and the second coils 320 of the two sets of coil assemblies 300 are opposite each other in the direction of the rotation axis of the oscillator 200.

[0098] According to some embodiments of this application, such as Figure 1 As shown, the housing 100 includes a body 120 and a base plate 130. The base plate 130 is fastened to the body 120. The base plate 130 and the body 120 enclose a mounting cavity 110, and the vibrator 200 and the coil assembly 300 are located in the mounting cavity 110.

[0099] In this embodiment, the housing 100 includes a body 120 and a base plate 130. The base plate 130 is fastened to the body 120. The base plate 130 and the body 120 form a mounting cavity 110. The mounting cavity 110 can accommodate the vibrator 200 and the coil assembly 300, further improving the stability of the vibration motor 10 during operation.

[0100] According to some embodiments of this application, such as Figure 1 As shown, the vibration motor 10 also includes a circuit board 500, which is disposed on the side of the base plate 130 facing the mounting cavity 110 and is electrically connected to the coil assembly 300.

[0101] In this embodiment, the vibration motor 10 also includes a circuit board 500, which is disposed on the side of the base plate 130 facing the mounting cavity 110 and is electrically connected to the coil assembly 300 to control the current passing through the coil assembly 300. This allows the electronic device 20 to control the movement state of the vibrator 200 by controlling the current intensity and direction connected to the coil assembly 300.

[0102] Furthermore, the circuit board 500 is welded to the end of the coil assembly 300, the circuit board 500 is bonded to the base plate 130, and the body 120 is welded to the base plate 130.

[0103] An electronic device 20 according to some embodiments of this application includes a vibration motor 10 as described in any of the above embodiments, and therefore the electronic device 20 has all the beneficial effects of the vibration motor 10 as described in any of the above embodiments.

[0104] Electronic device 20 includes mobile phones, tablets, laptops, or smart wearable devices.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration motor, characterized by, include: case; A vibrator, wherein the vibrator is disposed within the housing; A coil assembly, disposed within the housing and located on a first side of the oscillator, is capable of driving the oscillator to rotate, thereby enabling the oscillator to vibrate in at least two directions; The coil assembly includes a first coil and a second coil; The second coil is electrically connected to the first coil and is arranged in parallel with the first coil; Wherein, the winding direction of the first coil is opposite to the winding direction of the second coil; The outer end of the first coil is connected to the outer end of the second coil, or the inner end of the first coil is connected to the inner end of the second coil. The oscillator includes a first magnet, the direction of the magnetic field lines inside the first magnet is a second direction, the cross-section of the first magnet is a first section, the first section is perpendicular to the rotation axis of the oscillator, the second direction is arranged along the diagonal of the first section, the second coil and the first coil are arranged side by side along the first direction, and the projections of the first direction and the second direction onto the first section intersect; or The oscillator includes a second magnet and a third magnet, the third magnet being arranged side by side with the second magnet, the direction of the magnetic field lines inside the second magnet being opposite to the direction of the magnetic field lines inside the third magnet; the second magnet is opposite to a portion of the first coil and also opposite to a portion of the second coil; the third magnet is opposite to another portion of the first coil and also opposite to another portion of the second coil.

2. The vibration motor according to claim 1, characterized in that, The first magnet is a one-piece structure.

3. The vibrating motor of claim 1, wherein Both the second magnet and the third magnet are triangular pyramidal in shape, with the bottom surfaces of the second magnet and the third magnet facing each other.

4. The vibrating motor according to any one of claims 1 to 3, characterized in that, Also includes: An elastic element, wherein a first end of the elastic element is connected to the housing and a second end is connected to the second side of the oscillator; The first side and the second side of the oscillator are the two adjacent sides of the oscillator.

5. The vibrating motor of claim 4, wherein The elastic element includes: Multiple spring clips are stacked and connected end to end in sequence.

6. The vibration motor according to any one of claims 1 to 3, characterized in that, The number of coil assemblies is two sets, and the two sets of coil assemblies are respectively arranged on both sides of the oscillator.

7. The vibration motor according to any one of claims 1 to 3, characterized in that, The housing includes: ontology; A base plate is fastened to the body, and the base plate and the body together form a mounting cavity, in which the vibrator and the coil assembly are located.

8. The vibration motor according to claim 7, characterized in that, Also includes: A circuit board is disposed on the side of the base plate facing the mounting cavity and is electrically connected to the coil assembly.

9. An electronic device, characterized in that, Including the vibration motor as described in any one of claims 1 to 8.

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