Motor structure and electronic device

Abstract

The present application discloses a motor structure and an electronic device. The structure comprises: a housing assembly, a slide assembly, and a driving assembly. The housing assembly comprises a housing and a cover plate, and the cover plate and the housing are fixed to each other to form a closed cavity. The slide assembly and the driving assembly are located in the cavity. The slide assembly comprises: slide chutes, fixed onto the inner wall of the housing; a sliding shaft, wherein the ends of the sliding shaft are located in grooves of the slide chutes, and the length direction of the sliding shaft intersects the length direction of the grooves; and a mass block, wherein the mass block is provided with a first through hole, and the sliding shaft passes through the first through hole and extends into the grooves. The driving assembly comprises: a coil and a magnetic assembly, the coil is fixed to the cover plate, and the magnetic assembly is fixed to the bottom surface of the side of the mass block facing the cover plate. Under the action of the magnetic force of the coil and the magnetic assembly, the mass block moves in the length direction of the sliding shaft; and / or, the sliding shaft and the mass block move in the length direction of the grooves.

Description

Motor structure and electronic device

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411027724.5, filed on July 30, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of communication, and particularly relates to a motor structure and an electronic device. BACKGROUND

[0004] Vibration motors are indispensable components of consumer electronic products such as mobile phones, tablets, and handheld game consoles, which provide tactile feedback to users. As competition in consumer electronics intensifies, users have increasingly high requirements for the vibration feedback of electronic products. Currently, the vibration prompt motors used in electronic products are mainly flat motors, shape memory alloy (SMA) motors, and linear motors. These motors can only achieve unidirectional vibration, thus providing limited tactile feedback. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a motor structure and an electronic device to solve the problem that the motor in the related art can only achieve unidirectional vibration.

[0006] To solve the above technical problems, the present application is implemented as follows:

[0007] In a first aspect, the embodiments of the present application provide a motor structure, comprising:

[0008] a housing assembly, a sliding assembly, and a driving assembly;

[0009] The housing assembly comprises a shell and a cover plate, the cover plate and the shell are fixed to form a closed cavity, and the sliding assembly and the driving assembly are located in the cavity.

[0010] The sliding assembly comprises a sliding groove fixed to the inner wall of the shell.

[0011] A sliding shaft, an end of the sliding shaft is located in the groove of the sliding groove, and the length direction of the sliding shaft intersects the length direction of the groove.

[0012] A mass block, the mass block is provided with a first through hole, and the sliding shaft passes through the first through hole and extends into the groove.

[0013] The driving assembly comprises a coil fixed with the cover plate and a magnetic assembly fixed on the bottom surface of the mass block on the side facing the cover plate.

[0014] Under the magnetic force of the coil and the magnetic assembly, the mass block moves along the length direction of the sliding shaft, and / or the sliding shaft and the mass block move along the length direction of the groove.

[0015] In the second aspect, the embodiments of the present application provide an electronic device comprising the motor structure of the first aspect.

[0016] In the embodiments of the present application, the motor structure comprises a shell assembly, a sliding assembly and a driving assembly. Under the action of the driving assembly, the mass block in the sliding assembly can move along the length direction of the sliding shaft, and / or the sliding shaft and the mass block in the sliding assembly can move along the length direction of the groove, so as to realize the multi-direction vibration of the motor structure, and the vibrations in each direction do not interfere with each other. The motor structure is simple in structure and low in manufacturing cost; the motor structure is small in size, and can save the stacking space of the whole machine. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0018] Fig. 1 is one of the structural schematic diagrams of the motor structure of the embodiments of the present application;

[0019] Fig. 2 is one of the structural schematic diagrams of the sliding assembly and the driving assembly of the embodiments of the present application;

[0020] Fig. 3 is a structural schematic diagram of the shell assembly of the embodiments of the present application;

[0021] Fig. 4a is a top view of the shell assembly of the embodiments of the present application;

[0022] Fig. 4b is a front view of the shell assembly of the embodiments of the present application;

[0023] Fig. 5 is one of the structural schematic diagrams of the sliding assembly of the embodiments of the present application;

[0024] Fig. 6a is the second of the structural schematic diagrams of the motor structure of the embodiments of the present application;

[0025] Fig. 6b is the third of the structural schematic diagrams of the motor structure of the embodiments of the present application;

[0026] Fig. 7a is the second of the structural schematic diagrams of the sliding assembly of the embodiments of the present application;

[0027] Fig. 7b is the third of the structural schematic diagrams of the sliding assembly of the embodiments of the present application;

[0028] Fig. 7c is a schematic view of the installation position of the sliding assembly in the shell according to an embodiment of the present application;

[0029] Fig. 8 is a schematic view of the second elastic member according to an embodiment of the present application;

[0030] Fig. 9a is a schematic view of the structure of the driving assembly according to an embodiment of the present application;

[0031] Fig. 9b is a schematic view of the structure of the driving assembly according to an embodiment of the present application;

[0032] Fig. 10 is a schematic view of the structure of the first magnetic assembly according to an embodiment of the present application;

[0033] Fig. 11 is a schematic view of the structure of the driving assembly according to an embodiment of the present application;

[0034] Fig. 12 is a schematic view of the structure of the second magnetic assembly according to an embodiment of the present application;

[0035] Fig. 13 is a schematic view of the magnetic field distribution according to an embodiment of the present application;

[0036] Fig. 14 is a schematic view of the magnetic field distribution according to an embodiment of the present application.

[0037] Reference signs: 1, shell assembly; 11, shell; 12, cover plate; 2, sliding assembly; 21, sliding groove; 211, recess; 22, sliding shaft; 23, mass block; 24, first elastic member; 25, second elastic member; 3, driving assembly; 31, coil; 32, magnetic assembly; 33, flexible circuit board; 311, first coil; 312, second coil; 313, third coil; 321, first magnetic assembly; 322, second magnetic assembly; 3211, first magnetic member; 3212, second magnetic member; 3213, third magnetic member; 3221, fourth magnetic member; 3222, fifth magnetic member; 3223, sixth magnetic member; 323, seventh magnetic member. DETAILED DESCRIPTION

[0038] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] The motor structure according to an embodiment of this application is described below with reference to the accompanying drawings.

[0043] As shown in Figures 1 and 2, an embodiment of this application provides a motor structure, including: a housing assembly 1, a sliding assembly 2, and a drive assembly 3;

[0044] The outer casing assembly 1 includes a housing 11 and a cover plate 12, the cover plate 12 and the housing 11 being fixed together to form a sealed cavity; the sliding assembly 2 and the driving assembly 3 are located within the cavity;

[0045] The sliding component 2 includes: a sliding groove 21, which is fixed on the inner wall of the housing 11;

[0046] A sliding shaft 22, the end of which is located in the groove 211 of the sliding groove 21, and the length direction of the sliding shaft 22 intersects the length direction of the groove 211;

[0047] Mass block 23, the mass block 23 having a first through hole, the sliding shaft 22 passing through the first through hole and extending into the groove 211;

[0048] The driving component 3 includes a coil 31 and a magnetic component 32. The coil 31 is fixed to the cover plate 12, and the magnetic component 32 is fixed to the bottom surface of the mass block 23 facing the cover plate 12.

[0049] Under the magnetic force of the coil 31 and the magnetic component 32, the mass block 13 moves along the length direction of the sliding shaft 22; and / or, the sliding shaft 22 and the mass block 23 move along the length direction of the groove 211.

[0050] In this embodiment, the housing assembly 1 of the motor structure, as shown in Figures 3, 4a, and 4b (Figure 4a is a top view of the housing assembly 1, and Figure 4b is a front view of the housing assembly 1), includes a housing 11 and a cover plate 12. The side of the housing 11 with an opening is fixed to the cover plate 12, forming a sealed cavity. The housing assembly 1 can provide support, shielding, and protection for the internal structure. Optionally, the length of the cover plate 12 can be greater than the length of the housing 11. As shown in Figure 3, one end of the cover plate 12 extends beyond the housing 11. The extended portion of the cover plate 12 can be used to fix other components, such as a flexible circuit board 33, which can be used to realize electrical signal transmission.

[0051] Both the sliding assembly 2 and the driving assembly 3 are disposed within the cavity of the housing assembly 1. The sliding assembly 2 includes a sliding groove 21, a sliding shaft 22, and a mass block 23. As shown in Figures 2 and 5, the sliding groove 21 is fixed to the inner wall of the housing 11. Optionally, the sliding assembly 2 includes two sliding grooves 21, which are respectively fixed to two opposite inner walls of the housing 11. Optionally, the sliding groove 21 can be fixed to the inner wall of the short side of the housing 11. The sliding groove 21 has a vertical groove 211, that is, the length direction of the groove 211 is vertical, and the groove 211 can provide guidance for the movement of the sliding shaft 22 and the mass block 23. The sliding groove 21 is used to fix the sliding shaft 22, and the sliding shaft 22 can slide within the groove 211. As shown in Figure 2, both ends of the sliding shaft 22 extend into the groove 211 and can slide up and down within the groove 211. The length direction of the sliding shaft 22 intersects the length direction of the groove 211, so that the sliding shaft 22 can slide up and down within the groove 211. Optionally, the length direction of the sliding shaft 22 is perpendicular to the length direction of the groove 211.

[0052] The mass block 23 has a first through hole extending through both opposite ends. The sliding shaft 22 passes through the first through hole, and its two ends extend into the groove 211, allowing the sliding shaft 22 to slide up and down together with the mass block 23 within the groove 211. As shown in Figures 1, 6a, and 6b, the sliding shaft 22 has a certain length of extension after passing through the first through hole, enabling the mass block 23 to slide left and right on the sliding shaft 22. Optionally, the mass block 23 can be made of a tungsten-nickel alloy.

[0053] As shown in Figure 2, the driving component 3 includes a coil 31 and a magnetic component 32. The coil 31 is fixed to the cover plate 12, and the magnetic component 32 is fixed to the mass block 23. The coil 31 is located below the magnetic component 32. The coil 31 and the magnetic component 32 interact with each other, and / or multiple magnetic components 32 interact with each other. The resulting driving force can cause the magnetic component 32 to drive the mass block 13 to slide left and right on the sliding shaft 22, that is, to move along the length direction of the sliding shaft 22. The length direction of the sliding shaft 22 can be the X-axis direction; and / or, the generated driving force can cause the magnetic component 32 to drive the mass block 13 and the sliding shaft 22 to slide up and down along the groove 211, that is, to move along the length direction of the groove 211. The length direction of the groove 211 can be the Z-axis direction.

[0054] In embodiments of this application, the motor structure includes a housing assembly, a sliding assembly, and a drive assembly. Under the action of the drive assembly, the mass block in the sliding assembly can move along the length direction of the sliding shaft, and / or the sliding shaft and the mass block in the sliding assembly can move along the length direction of the groove in the sliding slot, thereby realizing multi-directional vibration of the motor structure, and the vibrations in each direction do not interfere with each other. This motor structure has a simple structure and low manufacturing cost; the motor structure is small in size, which can save the stacking space of the whole machine.

[0055] Optionally, the end of the sliding shaft 22 can be configured to match the shape of the groove 211. For example, if the cross-section of the groove 211 is circular, the end of the sliding shaft 22 can be configured as a spherical block; if the cross-section of the groove 211 is rectangular, the end of the sliding shaft 22 can be configured as a cube or cuboid block. Optionally, the diameter of the groove 211 is larger than the diameter of the end of the sliding shaft 22, and the diameter of the end of the sliding shaft 22 is larger than the opening size of the groove 211.

[0056] Taking the spherical end of the sliding shaft 22 as an example, as shown in Figures 7a and 7b, the sliding groove 21 is fixed to the inner wall of the short side of the housing 11, and the sliding groove 21 is designed with a groove feature that has a large internal opening and a small internal opening. Both ends of the sliding shaft 22 are designed with ball-shaped structures, and these ball-shaped structures are located in the grooves 211 of the sliding groove 21. To ensure structural reliability, the diameter D1 of the groove 211 is larger than the diameter D2 of the ball-shaped ends of the sliding shaft 22 (D1 > D2), and the diameter of the ball-shaped ends is larger than the opening size D3 of the groove 211. The two ends of the sliding shaft 22 extend into the grooves 211 at both ends, and their shapes are matched to reduce the resistance of the sliding shaft 22 sliding within the grooves 211. The position of the sliding assembly 2 within the cavity is shown in Figure 7c.

[0057] As an optional embodiment, the sliding component 2 further includes:

[0058] A first elastic element 24, one end of which is fixed to the sliding shaft 22, and the other end of which abuts against the mass block 23;

[0059] The second elastic element 25 has one end fixed to the sliding shaft 22 and the other end abutting against the cover plate 12.

[0060] In this embodiment, as shown in Figures 1 and 2, the first elastic element 24 provides elastic force for the mass block 13 to move along the length of the sliding shaft 22. One end of the first elastic element 24 is fixed to the sliding shaft 22, specifically, to the portion of the sliding shaft 22 extending beyond the mass block 13; the other end of the first elastic element 24 abuts against the mass block 13. Optionally, the other end of the first elastic element 24 can also be fixed to the mass block 13, thereby allowing the mass block 13 to move within the compression or tension range of the first elastic element 24.

[0061] Optionally, as shown in FIG6a, the sliding assembly 2 includes two first elastic elements 24 and two sliding grooves 21. The two sliding grooves 21 are respectively fixed to two opposite inner walls of the housing 11. The two ends of the sliding shaft 22 are respectively located in the two sliding grooves 21. The two first elastic elements 24 are respectively disposed at both ends of the sliding shaft 22 extending out of the mass block 23.

[0062] As shown in Figure 6a, the other end of the first elastic element 24 can be fixed to the side of the mass block 13. Providing two first elastic elements 24 ensures the balance of the mass block 13's reciprocating motion in both left and right directions. For example, when the mass block 13 moves to the left along the length of the sliding shaft 22, the left first elastic element 24 is compressed, and the right first elastic element 24 is stretched; when the mass block 13 moves to the right along the length of the sliding shaft 22, the right first elastic element 24 is compressed, and the left first elastic element 24 is stretched. Optionally, the first elastic element 24 can be an elastic structure such as a sheet or spring.

[0063] Optionally, the two first elastic members 24 are respectively connected to two opposite sides of the mass block 13. As shown in FIG6a, one end of the first elastic member 24 located on the left side of the mass block 13 is connected to the sliding shaft 22, and the other end is connected to the lower side of the mass block 13 shown in FIG6a; one end of the first elastic member 24 located on the right side of the mass block 13 is connected to the sliding shaft 22, and the other end is connected to the upper side of the mass block 13 shown in FIG6a. It should be noted that the terms "lower" and "upper" here refer only to the planar view shown in FIG6a.

[0064] Optionally, the sliding assembly 2 includes two second elastic elements 25 and two sliding grooves 21, the two sliding grooves 21 being fixed to two opposite inner walls of the housing 11 respectively, and the two ends of the sliding shaft 22 being located in the two sliding grooves 21 respectively; the two second elastic elements 25 are respectively disposed at both ends of the sliding shaft 22 extending out of the mass block 23.

[0065] As shown in Figures 2 and 8, the second elastic element 25 provides elastic force to support the movement of the mass block 13 and the sliding shaft 22 along the length of the groove 211. One end of the second elastic element 25 is fixed to the sliding shaft 22, specifically, to the portion of the sliding shaft 22 extending beyond the mass block 13; the other end of the second elastic element 25 abuts against the cover plate 12, or alternatively, the other end of the second elastic element 25 may also be fixed to the cover plate 12. The second elastic element 25 can be compressed or stretched between the sliding shaft 22 and the cover plate 12, thereby causing the mass block 13 and the sliding shaft 22 to reciprocate within the groove 211 and within the range of compression or stretching of the second elastic element 25.

[0066] As shown in Figure 8, the second elastic element 25 can be fixed to the bottom surface of the sliding shaft 22 (facing the cover plate 12). Providing two second elastic elements 25 on the left and right sides of the mass block 13 ensures the balance of the reciprocating motion of the mass block 13 and the sliding shaft 22 in both vertical directions. For example, when the mass block 13 and the sliding shaft 22 move downwards within the groove 211, both second elastic elements 25 are compressed; when the mass block 13 and the sliding shaft 22 move upwards within the groove 211, both second elastic elements 25 are stretched. The degree of movement on the left and right sides of the mass block 13 and the sliding shaft 22 is consistent when they move downwards or upwards. Optionally, the second elastic element 25 can be an elastic structure such as a sheet or spring.

[0067] As an optional embodiment, the driving component 3 further includes: a flexible circuit board 33;

[0068] The coil 31 includes a first coil 311 and a second coil 312; the first coil 311 and the second coil 312 are respectively connected to the flexible circuit board 33.

[0069] The magnetic component 32 includes: a first magnetic component 321 and a second magnetic component 322;

[0070] The projection of the first magnetic component 321 toward the cover plate 12 at least partially overlaps with the first coil 311; the projection of the second magnetic component 322 toward the cover plate 12 at least partially overlaps with the second coil 312.

[0071] In this embodiment, as shown in Figures 1 and 2, the driving component 3 includes a flexible printed circuit board 33 (FPC), as shown in Figure 2. The coil 31 includes a first coil 311 and a second coil 312, which are respectively connected to the flexible printed circuit board 33. The flexible printed circuit board 33 can provide current to the coil. The magnetic component 32 includes a first magnetic component 321 and a second magnetic component 322, which can be magnet components. The first magnetic component 321 and the second magnetic component 322 can be fixed to the mass block 13 by means including but not limited to bonding or welding, forming the mover of the vibration system to provide vibration.

[0072] The projection of the first magnetic component 321 toward the cover plate 12 at least partially overlaps with the first coil 311, and the projection of the second magnetic component 322 toward the cover plate 12 at least partially overlaps with the second coil 312. As shown in FIG2, the first magnetic component 321 is located above the first coil 311 and can interact with the first coil 311 to generate a driving force in the X direction (the length direction of the sliding shaft). The second magnetic component 322 is located above the second coil 312 and can interact with the second coil 312 to generate a driving force in the X direction, causing the mass block 13 to move in the length direction of the sliding shaft 22.

[0073] Optionally, as shown in Figures 2 and 3, the coil further includes: a third coil 313, which is connected to the flexible circuit board 33 and is located between the first coil 311 and the second coil 312; the magnetic component 32 further includes: a seventh magnetic element 323, which is located between the first magnetic component 321 and the second magnetic component 322.

[0074] Optionally, the seventh magnetic element 323 is provided with a second through hole, one end of the third coil 313 is fixed to the cover plate 12, and the other end extends into the second through hole, and the seventh magnetic element 323 surrounds the outside of the third coil 313.

[0075] Optionally, the third coil 313 can be wound around the outside of the iron core, and when the third coil 313 is energized, it forms an electromagnet with the iron core.

[0076] For example, the third coil 313 is wound around the outside of the iron core and connected to the flexible circuit board 33. The seventh magnetic element 323 can be a ring-shaped magnet. The seventh magnetic element 323 is wrapped around the outside of the third coil 313. When current is passed through the third coil 313, the third coil 313 forms an electromagnet and interacts with the seventh magnetic element 323. The seventh magnetic element 323 drives the mass block 13 and the sliding shaft 22 to slide up and down in the groove 211.

[0077] As shown in Figures 9a and 9b, the third coil 313 is connected to the flexible circuit board 33, and the flexible circuit board 33 provides current to the third coil 313. The seventh magnetic component 323 can be fixed to the mass block 13 by various methods such as bonding or welding. The seventh magnetic component 323 is located between the first magnetic component 321 and the second magnetic component 322. The interaction between the seventh magnetic component 323 and the third coil 313 generates a Z-axis driving force, enabling the sliding shaft 22 and the mass block 23 to move along the length direction of the groove 211.

[0078] As an optional embodiment, the first magnetic component 321 includes a first magnetic element 3211, a second magnetic element 3212, and a third magnetic element 3213 arranged side by side;

[0079] Wherein, the magnetic poles of the first magnetic element 3211 and the third magnetic element 3213 point in a direction perpendicular to the length direction of the sliding shaft 22, and the magnetic poles of the first magnetic element 3211 and the third magnetic element 3213 point in opposite directions; the magnetic poles of the second magnetic element 3212 point in a direction parallel to the length direction of the sliding shaft 22.

[0080] The second magnetic component 322 includes a fourth magnetic element 3221, a fifth magnetic element 3222, and a sixth magnetic element 3223 arranged side by side;

[0081] The magnetic poles of the fourth magnetic element 3221 and the sixth magnetic element 3223 are perpendicular to the length direction of the sliding shaft 22, and the magnetic poles of the fourth magnetic element 3221 and the sixth magnetic element 3223 are opposite in the same direction; the magnetic poles of the fifth magnetic element 3222 are parallel to the length direction of the sliding shaft 22.

[0082] Optionally, the first magnetic component 3211, the second magnetic component 3212, the third magnetic component 3213, the fourth magnetic component 3221, the fifth magnetic component 3222, and the sixth magnetic component 3223 can be magnets or steel magnets. As shown in Figure 10, the first magnetic assembly 321 can be composed of three magnetic components, which can be fixed together by means of bonding or other methods. The magnetic poles of the first magnetic component 3211 and the third magnetic component 3213 point perpendicular to the length direction of the sliding shaft 22, as shown in Figure 11. The direction perpendicular to the length direction of the sliding shaft 22 is the N pole or S pole of the first magnetic component 3211 and the third magnetic component 3213. The first magnetic element 3211 and the third magnetic element 3213 have opposite magnetic poles facing the same direction. For example, as shown in Figure 10, if the magnetic pole above the first magnetic element 3211 is the S pole and the magnetic pole below is the N pole, then the magnetic pole above the third magnetic element 3213 is the N pole and the magnetic pole below is the S pole; or, if the magnetic pole above the first magnetic element 3211 is the N pole and the magnetic pole below is the S pole, then the magnetic pole above the third magnetic element 3213 is the S pole and the magnetic pole below is the N pole.

[0083] The magnetic poles of the second magnetic element 3212 are parallel to the length direction of the sliding shaft 22. For example, as shown in Figure 8, the end of the second magnetic element 3212 adjacent to the first magnetic element 3211 is the N pole, and the end adjacent to the third magnetic element 3213 is the S pole.

[0084] As shown in Figure 12, similarly, the second magnetic component 322 can be composed of three magnetic parts, which can be fixed together by means of bonding or other methods. The magnetic poles of the fourth magnetic part 3221 and the sixth magnetic part 3223 point in a direction perpendicular to the length direction of the sliding shaft 22, as shown in Figure 11. The direction perpendicular to the length direction of the sliding shaft 22 represents either the N pole or the S pole of the fourth magnetic part 3221 and the sixth magnetic part 3223. The magnetic poles of the fourth magnetic part 3221 and the sixth magnetic part 3223 have opposite directions. For example, as shown in Figure 12, if the upper magnetic pole of the fourth magnetic part 3221 is N and the lower magnetic pole is S, then the upper magnetic pole of the sixth magnetic part 3223 is S and the lower magnetic pole is N; or, if the upper magnetic pole of the fourth magnetic part 3221 is S and the lower magnetic pole is N, then the upper magnetic pole of the sixth magnetic part 3223 is N and the lower magnetic pole is S.

[0085] The magnetic poles of the fifth magnetic element 3222 are parallel to the length direction of the sliding shaft 22. For example, as shown in Figure 12, the end of the fifth magnetic element 3222 adjacent to the fourth magnetic element 3221 is the S pole, and the end of the fifth magnetic element 3222 adjacent to the sixth magnetic element 3223 is the N pole.

[0086] Optionally, the third magnetic element 3213 and the fourth magnetic element 3221 have the same magnetic poles facing the same direction. It is understood that the first magnetic component 321 and the second magnetic component 322 are symmetrically arranged. For example, as shown in Figures 10 and 12, the third magnetic element 3213 and the fourth magnetic element 3221 both have N poles at the top and S poles at the bottom.

[0087] The magnetic fields generated between the first magnetic component 321 and the first coil 311, the second magnetic component 322 and the second coil 312, and the third coil 313 and the seventh magnetic component 323 are shown in Figures 13 and 14. Figure 13 is a schematic diagram of the magnetic field distribution showing the magnitude of the magnetic field, and Figure 14 is a schematic diagram of the magnetic field distribution showing the direction of the magnetic field. By connecting the first coil 311, the second coil 312, and the third coil 313 to the flexible circuit board 33, an X-direction driving force is generated between the first coil 311 and the first magnetic component 321, and between the second coil 312 and the second magnetic component 322, causing the magnetic components to drive the mass block 13 to move along the length direction of the sliding shaft 22. And / or, a Z-direction driving force is generated between the third coil 313 and the seventh magnetic component 323, causing the magnetic components to drive the mass block 13 and the sliding shaft 22 to move along the length direction of the groove 211.

[0088] Based on the magnetic field distribution shown in Figures 13 and 14, for example: when a clockwise current is passed through the first coil 311, a rightward driving force is generated between the first coil 311 and the first magnetic component 321; when a counterclockwise current is passed through the second coil 312, a rightward driving force is generated between the second coil 312 and the second magnetic component 322. Thus, the first magnetic component 321 and the second magnetic component 322 can drive the mass block 13 to move to the right on the sliding shaft 22. When a counterclockwise current is passed through the first coil 311, a leftward driving force is generated between the first coil 311 and the first magnetic component 321; when a clockwise current is passed through the second coil 312, a leftward driving force is generated between the second coil 312 and the second magnetic component 322. Thus, the first magnetic component 321 and the second magnetic component 322 can drive the mass block 13 to move to the left on the sliding shaft 22, achieving vibration in the X-axis direction.

[0089] For example, the third coil 313 forms an electromagnet. When a clockwise current is passed through the third coil 313, an upward driving force is generated, and the seventh magnetic element 323 can drive the mass block 23 and the sliding shaft 22 to move upward in the groove 211. When a counterclockwise current is passed through the third coil 313, a downward driving force is generated, and the seventh magnetic element 323 can drive the mass block 23 and the sliding shaft 22 to move downward in the groove 211, thereby achieving vibration in the Z-axis direction.

[0090] In this embodiment, the motor structure is simple in structure, small in size, and does not interfere with each other in different vibration directions. It includes two sets of magnets and coils (a first magnetic component and a first coil, and a second magnetic component and a second coil) to provide power for X-axis vibration, a set of electromagnets (a third magnetic component) to provide power for Z-axis vibration, a mover enclosing the magnets, a sliding shaft 22 passing through the mover, and a groove 211 to guide the Z-axis displacement of the sliding shaft 22. This motor structure can provide both X-axis and Z-axis vibration sensations. It has a simple structure and few parts, resulting in low manufacturing cost. Its small size saves stacking space, and the X-axis and Z-axis vibrations do not interfere with each other, providing a better vibration sensation experience.

[0091] In embodiments of this application, the motor structure includes a housing assembly, a sliding assembly, and a drive assembly. Under the action of the drive assembly, the mass block in the sliding assembly can move along the length direction of the sliding shaft, and / or the sliding shaft and the mass block in the sliding assembly can move along the length direction of the groove in the sliding slot, thereby realizing multi-directional vibration of the motor structure, and the vibrations in each direction do not interfere with each other. This motor structure has a simple structure and low manufacturing cost; the motor structure is small in size, which can save the stacking space of the whole machine.

[0092] Embodiments of this application also provide an electronic device, which includes the motor structure described above.

[0093] Other components of the electronic device in the embodiments of this application, such as the housing, and its operation are known to those skilled in the art and will not be described in detail here.

[0094] 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.

[0095] 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 motor structure comprising: The housing assembly, the sliding assembly and the driving assembly; The housing assembly comprises a shell and a cover plate, the cover plate and the shell are fixed to form a closed cavity, the sliding assembly and the driving assembly are located in the cavity; The sliding assembly comprises a sliding groove fixed on the inner wall of the shell; A sliding shaft, the end of the sliding shaft is located in the groove of the sliding groove, the length direction of the sliding shaft intersects with the length direction of the groove; A mass block, the mass block is provided with a first through hole, the sliding shaft passes through the first through hole and extends into the groove; The driving assembly comprises a coil and a magnetic assembly, the coil is fixed with the cover plate, the magnetic assembly is fixed on the bottom surface of the mass block facing the cover plate; Under the magnetic force of the coil and the magnetic assembly, the mass block moves along the length direction of the sliding shaft; and / or the sliding shaft and the mass block move along the length direction of the groove.

2. The motor structure according to claim 1, wherein, The sliding assembly further comprises: A first elastic member, one end of the first elastic member is fixed with the sliding shaft, the other end of the first elastic member abuts against the mass block; A second elastic member, one end of the second elastic member is fixed with the sliding shaft, the other end of the second elastic member abuts against the cover plate.

3. The motor structure of claim 1, wherein, The driving assembly further comprises a flexible circuit board; The coil comprises a first coil and a second coil; the first coil and the second coil are respectively connected with the flexible circuit board; The magnetic assembly comprises a first magnetic assembly and a second magnetic assembly; The projection of the first magnetic assembly towards the cover plate direction at least partially overlaps with the first coil; the projection of the second magnetic assembly towards the cover plate direction at least partially overlaps with the second coil.

4. The motor structure of claim 3, wherein, The first magnetic assembly comprises a first magnetic member, a second magnetic member and a third magnetic member arranged side by side; The pointing direction of the magnetic poles of the first magnetic member and the third magnetic member is perpendicular to the length direction of the sliding shaft, and the magnetic poles of the first magnetic member and the third magnetic member facing the same direction are opposite; the pointing direction of the magnetic poles of the second magnetic member is parallel to the length direction of the sliding shaft; The second magnetic assembly comprises a fourth magnetic member, a fifth magnetic member and a sixth magnetic member arranged side by side; The pointing direction of the magnetic poles of the fourth magnetic member and the sixth magnetic member is perpendicular to the length direction of the sliding shaft, and the magnetic poles of the fourth magnetic member and the sixth magnetic member facing the same direction are opposite; the pointing direction of the magnetic poles of the fifth magnetic member is parallel to the length direction of the sliding shaft.

5. The motor structure of claim 4, wherein, The magnetic poles of the third magnetic member and the fourth magnetic member facing the same direction are the same.

6. The motor structure of claim 3, wherein, The coil further comprises a third coil, the third coil is connected with the flexible circuit board, and the third coil is located between the first coil and the second coil; The magnetic assembly further comprises a seventh magnetic member, the seventh magnetic member is located between the first magnetic assembly and the second magnetic assembly.

7. The motor structure of claim 6, wherein, The seventh magnetic member is provided with a second through hole, one end of the third coil is fixed with the cover plate, and the other end extends into the second through hole, and the seventh magnetic member is surrounded outside the third coil.

8. The motor structure of claim 2, wherein, The sliding assembly comprises two first elastic members and two sliding grooves, the two sliding grooves are fixed with the opposite two inner walls of the shell respectively, and the two ends of the sliding shaft are located in the two sliding grooves respectively. The two first elastic members are arranged at the two ends of the sliding shaft extending out of the mass block respectively.

9. The motor structure of claim 2, wherein, The sliding assembly comprises two second elastic members and two sliding grooves, the two sliding grooves are fixed with the opposite two inner walls of the shell respectively, and the two ends of the sliding shaft are located in the two sliding grooves respectively. The two second elastic members are arranged at the two ends of the sliding shaft extending out of the mass block respectively.

10. An electronic device comprising the motor structure of any one of claims 1-9.

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