Vibration device and electronic equipment

Abstract

The invention discloses a vibration device and electronic equipment, and relates to the technical field of micro vibration, the vibration device comprises a shell, a stator assembly and a vibrator assembly, and a mounting cavity is formed in the shell; the stator assembly comprises a coil structure, and the coil structure is arranged in the mounting cavity; the vibrator assembly comprises a mass block and two magnetic circuit structures which are arranged in the mounting cavity, the mass block is elastically connected with the shell, a mounting space is defined by the mass block, and the coil structure and the two magnetic circuit structures are all located in the mounting space; each magnetic circuit structure comprises a magnetic conducting piece and a magnetic piece, the magnetic conducting pieces define a mounting groove with a notch facing the magnetic gap, the side, away from the notch, of each magnetic conducting piece is connected with the mass block, a glue overflowing groove is formed in at least one side, in the third direction, of each corner of each mounting groove, and the magnetic piece is bonded in the mounting groove through glue injection. Through the design of the glue overflowing groove, an expansion space is provided for glue injection, so that the glue forms a thickened glue layer at the corner, the bonding between the magnetic conductive piece and the magnetic piece is more stable, and degumming is not easy to occur.

Description

Technical Field

[0001] The present invention relates to the field of micro-vibration technology, and in particular to a vibration device and electronic equipment. Background Art

[0002] A vibration device is a device that converts electrical energy directly into linear motion. It does not require the intermediate transmission mechanism (such as gears, belts, etc.) of a traditional rotary motor. It has the advantages of high speed, high precision, low noise and simple structure. The vibration device is the core component that provides tactile feedback in electronic devices.

[0003] The vibration device in the prior art includes a magnetic circuit structure. The magnetic conductive parts and the magnetic parts in the magnetic circuit structure are usually connected by bonding. However, during the repeated vibration of the magnetic circuit structure, the bonding between the magnetic conductive parts and the magnetic parts is prone to debonding or failure, resulting in a deterioration in the overall vibration effect of the vibration device and affecting the performance of the electronic equipment. Summary of the Invention

[0004] The main purpose of the present invention is to provide a vibration device and an electronic device, aiming to solve the technical problem in the prior art that the bonding between the magnetic conductive part and the magnetic part of the vibration device is prone to separation or failure.

[0005] To achieve the above-mentioned object, the vibration device proposed by the present invention comprises: a housing, wherein a mounting cavity is formed in the housing; a stator assembly, the stator assembly comprising a coil structure, the coil structure being disposed in the mounting cavity; A vibrator assembly, wherein the coil structure enables the vibrator assembly to vibrate along a first direction relative to the stator assembly when energized; the vibrator assembly includes a mass block and two magnetic circuit structures disposed within the mounting cavity, the mass block being elastically connected to the housing and enclosing an mounting space, the coil structure and the two magnetic circuit structures being both located within the mounting space, the two magnetic circuit structures being spaced apart along a second direction and enclosing a magnetic gap, and the coil structure being located within the magnetic gap; Each of the magnetic circuit structures includes a magnetic conductive part and a magnetic part. Each of the magnetic conductive parts forms an installation slot with a slot facing the magnetic gap. The two magnetic conductive parts are arranged at intervals along the second direction. The side of each magnetic conductive part facing away from the slot is connected to the mass block, and a glue overflow groove is provided at the corner of each of the installation slots along at least one side of the third direction. The magnetic part is bonded to the installation slot by glue injection, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0006] In one embodiment, the magnetic conductive part includes a bottom edge and two side edges respectively arranged on both sides of the bottom edge along the first direction, the bottom edge and the two side edges form the installation groove, the connection between each side edge and the bottom edge forms a corner of the installation groove, and the connection between each side edge and the bottom edge is provided with a glue overflow groove on both sides along the third direction, and each glue overflow groove is formed by being recessed from the corresponding side edge along the third direction toward the other side edge.

[0007] In one embodiment, recesses are provided at both ends of the bottom edge along the first direction. The recesses are located on a side of the bottom edge facing the magnetic component, and are recessed in a direction away from the magnetic component.

[0008] In one embodiment, one end of the side is connected to the recess, the thickness of the bottom edge corresponding to the recess is the same as the thickness of the side edge, and the side edge is bent from the connection between the side edge and the recess along the second direction toward the other magnetic conductive component to form the corner.

[0009] In one embodiment, each of the side edges includes a connecting section and an abutting section, and the connecting section forms an abutting surface for abutting with the magnetic part on one side facing the mounting groove, one end of the connecting section is connected to the abutting section, and the other end is connected to the recess, and the width of the connecting section along the third direction is the same as the width of the recess along the third direction, and both are smaller than the width of the abutting end and other areas of the bottom edge along the third direction, and the two side edges of the recess and the connecting section along the third direction are spliced ​​to form the glue overflow groove.

[0010] In one embodiment, the bottom edge protrudes along one side of the third direction to form a yoke bar, and the yoke bar forms a slope toward the side of the installation slot, and the slope is inclined away from the bottom edge and away from the installation slot.

[0011] In one embodiment, the mass block is elastically connected to the shell through an elastic component, and the elastic component includes two spring plates, which are respectively arranged on both sides of the mass block along the first direction; one end of each spring plate is connected to one side of the mass block along the second direction, and the other end is located on the other side of the mass block along the second direction and connected to the shell.

[0012] In one embodiment, the coil structure includes an iron core and a coil, the axis of the coil is parallel to the first direction, the iron core includes two pole shoes spaced apart along the first direction and a winding portion connected between the two pole shoes, and the coil is wound outside the winding portion.

[0013] In one embodiment, two grooves are respectively provided on both sides of the mass block along the first direction, and a damping member is provided in each of the grooves, and the damping member is used to abut against the coil structure when the mass block vibrates along the first direction; The thickness of the damping member along the third direction is smaller than the thickness of the corresponding groove along the third direction. The opening and the bottom wall of the groove are respectively located on both sides of the groove along the third direction. The damping member is connected to the bottom wall of the groove so that the side of the damping member facing the opening of the groove and the groove side wall of the groove form a glue overflow channel.

[0014] The present invention also provides an electronic device, wherein the electronic device is equipped with the vibration device.

[0015] The technical solution of the present invention is to open a glue overflow groove along at least one side of the third direction at the corner of the installation groove of the magnetic conductive part. The glue overflow groove provides glue overflow space for glue injection, so that the glue forms a thickened glue layer at the corner, increases the bonding area between the magnetic conductive part and the magnetic part, and disperses the vibration stress. At the same time, compared with the traditional adhesive layer, the thickened glue layer can significantly enhance the shear and tensile strength of the glue during repeated vibration, so that the bonding between the magnetic conductive part and the magnetic part is more stable and not easy to debond, thereby avoiding debonding and failure between the magnetic conductive part and the magnetic part caused by repeated vibration of the magnetic circuit structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the explosion structure of a vibration device provided in one embodiment of the present invention; Figure 2 A schematic diagram of a portion of the structure of a vibration device provided by an embodiment of the present invention at a viewing angle; Figure 3 A schematic diagram of a portion of the structure of a vibration device provided by an embodiment of the present invention from another perspective; Figure 4 A schematic structural diagram of a mass block and a damping element of a vibration device provided in one embodiment of the present invention; Figure 5 A schematic structural diagram of a housing and a stator assembly of a vibration device provided in one embodiment of the present invention; Figure 6 A schematic structural diagram of a magnetic conductive component of a vibration device provided in one embodiment of the present invention; Figure 7 A schematic structural diagram of a magnetic conductive component and a magnetic component of a vibration device provided in one embodiment of the present invention.

[0018] Description of Figure Numbers: 100. Vibration device; 1. Housing; 11. Mounting cavity; 12. Stop plate; 13. Upper housing; 14. Lower housing; 2. Stator assembly; 21. Coil structure; 211. Iron core; 212. Coil; 213. Pole shoe; 214. Winding unit; 22. Circuit board; 3. Vibrator assembly; 31. Mass block; 311. Groove; 312. Groove bottom wall; 313. Opening; 314. Inner wall; 315. Outer wall; 316. Recessed portion; 32. Magnetic circuit structure; 321. Magnetic conductive member; 3211. Bottom edge; 32111. Recess; 3212, side; 32121, connecting section; 32122, abutting section; 32123, abutting surface; 3213, yoke strip; 3214, slope; 322, magnetic part; 323, mounting groove; 324, overflow glue groove; 33, mounting space; 34, magnetic gap; 35, overflow glue channel; 4, elastic connecting part; 41, first end; 42, second end; 43, inner stop block; 44, outer stop block; 5, damping part; 51, middle part; 52, first fixing part; 53, second fixing part; 531, contact surface.

[0019] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] The vibration device in the prior art includes a magnetic circuit structure. The magnetic conductive parts and the magnetic parts in the magnetic circuit structure are usually connected by bonding. However, during the repeated vibration of the magnetic circuit structure, the bonding between the magnetic conductive parts and the magnetic parts is prone to debonding or failure, resulting in a deterioration in the overall vibration effect of the vibration device.

[0024] To solve the above problems, the present invention provides a vibration device 100 .

[0025] Please combine Figures 1 to 3 as well as Figure 6 and Figure 7 The vibration device 100 of this embodiment includes a housing 1, a stator assembly 2, and a vibrator assembly 3. A mounting cavity 11 is formed in the housing 1; the stator assembly 2 includes a coil structure 21, which is disposed in the mounting cavity 11; the coil structure 21 enables the vibrator assembly 3 to vibrate along a first direction relative to the stator assembly 2 when energized; the vibrator assembly 3 includes a mass block 31 and two magnetic circuit structures 32 disposed in the mounting cavity 11, the mass block 31 is elastically connected to the housing 1, and the mass block 31 encloses a mounting space 33, the coil structure 21 and the two magnetic circuit structures 32 are both located in the mounting space 33, and the two magnetic circuit structures 32 They are spaced apart along the second direction and form a magnetic gap 34, and the coil structure 21 is located in the magnetic gap 34; each magnetic circuit structure 32 includes a magnetic conductive part 321 and a magnetic part 322, and each magnetic conductive part 321 forms a mounting slot 323 with a slot facing the magnetic gap 34, and the two magnetic conductive parts 321 are spaced apart along the second direction, and the side of each magnetic conductive part 321 facing away from the slot is connected to the mass block 31, and each corner of each mounting slot 323 is provided with a glue overflow groove 324 on at least one side along the third direction, and the magnetic part 322 is bonded to the mounting slot 323 by glue injection, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0026] It is understandable that after the coil structure 21 is energized, the magnetic field generated by the coil structure 21 interacts with the magnetic field of the magnetic circuit structure 32 itself, and the coil structure 21 is fixed to the shell 1, so the magnetic circuit structure 32 will be driven to vibrate, and the magnetic circuit structure 32 is connected to the mass block 31, and the mass block 31 is connected to the shell 1, thereby driving the mass block 31 to vibrate together through the magnetic circuit structure 32. It should be noted that the first direction is Figure 3 The left and right directions in the second direction are Figure 3 The front-back direction in the third direction is Figure 3 The up and down directions in .

[0027] The technical solution of the present invention is to open a glue overflow groove 324 along at least one side of the third direction at the corner of the installation groove 323 of the magnetic component 321. The glue overflow groove 324 provides a glue overflow space for glue injection, so that the glue forms a thickened glue layer at the corner, increases the bonding area between the magnetic component 321 and the magnetic component 322, and disperses the vibration stress. At the same time, compared with the traditional adhesive layer, the thickened glue layer can significantly enhance the shear and tensile strength of the glue during repeated vibration, so that the bonding between the magnetic component 321 and the magnetic component 322 is more stable and not easy to debond, thereby avoiding debonding and failure between the magnetic component 321 and the magnetic component 322 caused by repeated vibration of the magnetic circuit structure 32.

[0028] In one embodiment, the magnetic conductive member 321 includes a bottom edge 3211 and two side edges 3212 respectively arranged on both sides of the bottom edge 3211 along the first direction. The bottom edge 3211 and the two side edges 3212 form a mounting groove 323. The connection between each side edge 3212 and the bottom edge 3211 forms a corner of the mounting groove 323, and each side edge 3212 and the bottom edge 3211 are connected to both sides along the third direction. A glue overflow groove 324 is formed. Each glue overflow groove 324 is recessed from the corresponding side edge 3212 along the third direction toward the other side edge 3212.

[0029] The three-sided structure formed by the bottom edge 3211 and the two side edges 3212 forms a stable covering for the magnetic part 322, so that the magnetic part 322 can be bonded to the magnetic conductive part 321 through three sides. Compared with the traditional planar groove structure, it has a larger bonding area and higher anti-deviability, preventing the magnetic part 322 from being displaced or eccentric during vibration, thereby improving the accuracy of the magnetic circuit centering. The connection between the bottom edge 3211 and the side edge 3212 is usually the area where the bending stress is most concentrated. After the overflow glue groove 324 is set, it not only provides a space for accommodating glue, but also provides a fine-tuning avoidance space for metal deformation, preventing the metal from turning outward or collapsing inward during the bending process, causing the slot to deform, thereby avoiding interference or dimensional deviation during the installation of the magnetic part 322.

[0030] It can be understood that, usually, the magnetic component 322 is a magnet, and the magnetic conductive component 321 is a washer.

[0031] In one embodiment, recesses 32111 are provided at both ends of the bottom edge 3211 along the first direction. The recesses 32111 are located on the side of the bottom edge 3211 facing the magnetic member 322 , and are recessed away from the magnetic member 322 .

[0032] At the same time, the recesses 32111 arranged at both ends of the bottom edge 3211 along the first direction are recessed in the direction away from the magnetic part 322, so that the recesses 32111 are arranged at the corners of the mounting groove 323, that is, the bending part of the magnetic conductive part 321. The recesses 32111 serve as avoidance space to absorb the extrusion of the magnetic conductive part 321 when it is bent to form the mounting groove 323, thereby avoiding assembly interference caused by deformation of the extrusion at the inner corner, thereby ensuring the dimensional accuracy of the magnetic circuit structure 32.

[0033] One end of the side 3212 is connected to the recess 32111, the thickness of the bottom edge 3211 corresponding to the recess 32111 is the same as the thickness of the side 3212, and the side 3212 is bent from the connection between it and the recess 32111 along the second direction toward the other magnetic conductive part 321 to form the corner.

[0034] The thickness of the recess 32111 is the same as that of the side 3212. The recess 32111 and the side 3212 are pressed together before the side 3212 is bent to form the mounting groove 323. Therefore, the recess 32111 and the side 3212 have the same thickness. After the pressing is completed, the side 3212 is bent again, so that the extruded material generated on the inner side of the bend is absorbed by the recess 32111 and the side 3212 to ensure the dimensional accuracy of the magnetic circuit structure 32.

[0035] In one embodiment, each side edge 3212 includes a connecting section 32121 and an abutting section 32122, and the abutting section 32122 has a side facing the mounting groove 323 to form an abutting surface 32123 for abutting against the magnetic member 322. One end of the connecting section 32121 is connected to the abutting section 32122, and the other end is connected to the recess 32111. The width of the connecting section 32121 along the third direction is the same as the width of the recess 32111 along the third direction, and both are smaller than the width of the abutting end and other areas of the bottom edge along the third direction, and the two side edges of the recess 32111 and the connecting section 32121 along the third direction are spliced ​​to form a glue overflow groove 324.

[0036] The abutment section 32122 forms an independent abutment surface 32123, so that the magnetic part 322 can be stably fitted with the magnetic conductive part 321, providing reliable end face positioning. The width of the recess 32111 and the connecting part along the third direction is the same, but smaller than the width of the bottom edge along the third direction, so that the two sides of the recess 32111 and the connecting part along the third direction can also be used to provide overflow space for glue. The edges of the two sides of the recess 32111 and the connecting section 32121 along the third direction form an overflow glue groove 324, so that the overflowed glue can form a thickened anchoring structure in the overflow glue groove 324, thereby enhancing the bonding firmness between the magnetic conductive part 321 and the magnetic part 322.

[0037] In one embodiment, the bottom edge 3211 protrudes on one side along the third direction to form a yoke strip 3213, the first direction, the second direction and the third direction are perpendicular to each other, and the yoke strip 3213 forms a slope 3214 on one side facing the mounting slot 323, and the slope 3214 is inclined in a direction away from the bottom edge 3211 toward a direction away from the mounting slot 323.

[0038] It should be noted that the third direction is Figure 3 The up and down directions in .

[0039] The bottom edge 3211 protrudes on one side along the third direction to form a magnetic yoke strip 3213, which increases the size of the magnetic conductive part 321 in the third direction, making it have stronger magnetic conductivity, which is conducive to closing the magnetic circuit and increasing the magnetic flux density; the magnetic yoke strip 3213 forms a slope 3214 on the side facing the mounting slot 323, and the slope 3214 is inclined in the direction away from the bottom edge 3211 and in the direction away from the mounting slot 323, serving as a diffusion and accumulation area for the glue during the injection process, effectively providing a glue overflow space, thereby further increasing the bonding strength between the magnetic part 322 and the magnetic conductive part 321.

[0040] See also Figure 5 In one embodiment, the coil structure 21 includes an iron core 211 and a coil 212, the axial direction of the coil 212 is parallel to the first direction, the iron core 211 includes two pole shoes 213 spaced apart along the first direction and a winding portion 214 connected between the two pole shoes 213, and the coil 212 is wound outside the winding portion 214.

[0041] The axial direction of the coil 212 is parallel to the first direction, so that the magnetic field generated by the coil 212 is concentratedly distributed along the first direction, so that the magnetic field force acting on the vibrator assembly 3 acts along the first direction, thereby improving the controllability and motion stability of the vibration path of the vibrator assembly 3, ensuring the precise vibration of the mass block 31 along the predetermined direction, reducing lateral offset or tilt, and enhancing the response accuracy and overall reliability of the vibration device 100.

[0042] It is connected to the shell 1 through two pole shoes 213, and the two pole shoes 213 are respectively in contact with the damping parts 5 set on both sides of the mass block 31 along the first direction, ensuring that the mass block 31 can effectively buffer the pole shoes 213 of the iron core 211 through the damping parts 5 when vibrating, reducing mechanical wear and collision, avoiding damage to the iron core 211 or the mass block 31, and also reducing the noise generated during vibration.

[0043] Please combine Figures 2 to 4 In one embodiment, two grooves 311 are respectively provided on both sides of the mass block 31 along the first direction, and a damping member 5 is provided in each of the grooves 311. The damping member 5 is used to abut against the coil structure 21 when the mass block 31 vibrates along the first direction; The thickness of the damping member 5 along the third direction is less than the thickness of the corresponding groove 311 along the third direction. The opening 313 and the bottom wall 312 of the groove 311 are respectively located on both sides of the groove 311 along the third direction. The damping member 5 is connected to the bottom wall 312 of the groove 311 so that the side of the damping member 5 facing the opening 313 of the groove 311 and the groove side wall of the groove 311 form a glue overflow channel 35.

[0044] Two grooves 311 are respectively provided on both sides of the mass block 31 along the first direction, and a damping member 5 is provided in each groove 311. The damping member 5 abuts against the coil structure 21, which can play a buffering and guiding role when the mass block 31 vibrates along the first direction; the flexible design of the damping member 5 has a certain elastic deformation ability, which can absorb the impact energy during the vibration process, reduce the impact force and noise transmitted by the vibration, and prevent damage caused by direct rigid collision between the mass block 31 and the coil structure 21.

[0045] The thickness of the damping member 5 along the third direction is smaller than the thickness of the groove 311 along the third direction, so that an overflow glue channel 35 is formed on the side of the damping member 5 facing the opening 313 of the groove 311. The overflow glue channel 35 allows both sides of the damping member 5 along the third direction to be bonded by glue, thereby improving the stability of the damping member 5, thereby improving the reliability and stability of the bonding between the damping member 5 and the mass block 31. The overflow glue channel 35 is used to provide space for glue, so that excess glue can be filled in the overflow glue channel 35, thereby increasing the bonding area and dispersing vibration stress.

[0046] In a specific embodiment, the damping member 5 is foam, which has good elasticity and compression recovery ability. It can effectively absorb the impact force when the mass block 31 vibrates and contacts the coil structure 21, significantly reducing the risk of damage caused by hard collisions and extending the service life of the coil structure 21. The foam material has good shock absorption and noise reduction effects at the moment of contact, and can effectively suppress the structural noise caused by impact.

[0047] In one embodiment, the housing 1 includes an upper shell 13 and a lower shell 14 , which together form an installation cavity 11 . The stator assembly 2 also includes a circuit board 22 , which is mounted on the lower shell 14 and electrically connected to the coil 212 .

[0048] Recesses 316 are provided on both sides of the groove 311 of the mass block 31 along the first direction, the first fixing portion 52 is at least partially located in the recessed portion 316 on the side facing the installation space 33, and the second fixing portion 53 is at least partially located in the recessed portion 316 on the side away from the installation space 33, and the size of the recessed portion 316 along the second direction is larger than the size of the groove 311 along the second direction.

[0049] The first fixing portion 52 and the second fixing portion 53 cooperate with the recessed portion 316, so that the damping member 5 is limited to be located in the groove 311 along the first direction, and the middle portion 51 cooperates with the recessed portion 311 so that the damping member 5 is limited to be located in the groove 311 along the second direction, so that the damping member 5 maintains a stable installation state under the constraint of the recessed portion 316, thereby preventing the damping member 5 from being offset or loosened during the repeated vibration of the mass block 31 along the first direction, thereby ensuring that the buffering effect of the damping member 5 is always effective; the first fixing portion 52 is at least partially located toward the installation position. The first fixing portion 52 is located in the recessed portion 316 on one side of the installation space 33, so that the first fixing portion 52 has a clear limit position when it is spaced apart from or abuts the iron core 211, and can reliably play a buffering and protective role to avoid the inability to effectively contact the iron core 211 due to offset; the second fixing portion 53 is at least partially located in the recessed portion 316 on the side away from the installation space 33, so that the second fixing portion 53 can be supported and restricted by the recessed portion 316 when it is spaced apart from or abuts the elastic connecting member 4, preventing it from offsetting or failing during the vibration return stroke.

[0050] In one embodiment, the mass block 31 is arranged in a ring shape, and the mass block 31 includes an inner wall 314 facing the magnetic gap 34 and an outer wall 315 away from the magnetic gap 34. A recessed portion 316 is provided on the inner wall 314 and the outer wall 315 near the groove 311. The dimensions of the second fixing portion 53 and the first fixing portion 52 along the second direction are greater than the dimensions of the middle portion 51 along the second direction, and the second fixing portion 53 abuts against the position of the recessed portion 316 on the outer wall 315, and the first fixing portion 52 abuts against the position of the recessed portion 316 on the inner wall 314.

[0051] The mass block 31 is arranged in a ring shape, so that the overall mass distribution of the vibration device 100 is more uniform, which is beneficial to maintaining motion balance during vibration and reducing polarization and noise. The dimensions of the second fixing part 53 and the first fixing part 52 along the second direction are larger than the dimensions of the middle part 51 along the second direction, forming an I-shaped structure, so that the first fixing part 52 abuts against the recessed part 316 on the inner wall 314, and the second fixing part 53 abuts against the recessed part 316 on the outer wall 315. The middle part 51 is passed through the groove 311, so that the damping member 5 can form a "wide end limiting, narrow end passing" structural relationship on both sides along the first direction, thereby providing a stable limiting effect, preventing the damping member 5 from deviating toward the coil structure 21 or the elastic connecting member 4, and improving the overall stability of the damping member 5.

[0052] An edge of one side of each second fixing portion 53 facing away from the magnetic gap 34 forms an inclined contact surface 531 , and the contact surface 531 is used to abut against a side of the elastic connector 4 arranged on the same side thereof facing the second fixing portion 53 .

[0053] The edge of one side of each second fixing portion 53 facing away from the magnetic gap 34 forms a contact surface 531 inclined along the second direction. The contact surface 531 abuts against the side of the elastic connecting member 4 arranged on the same side facing the second fixing portion 53, so that the side of the elastic connecting member 4 facing the second fixing portion 53 can also form an oblique contact with the contact surface 531, playing the dual role of buffering and guiding and limiting, reducing instantaneous impact force, and extending the service life of the structure.

[0054] In one embodiment, the elastic connector 4 is a U-shaped elastic connector 4 with an opening facing the mass block 31, and the two ends of the opening of the elastic connector 4 are respectively a first end 41 and a second end 42. The first end 41 of each elastic connector 4 is connected to the mass block 31, and an inner stop block 43 is provided on the side of each first end 41 facing away from the mass block 31, and the inner stop block 43 is used to fix the corresponding first end 41 and the mass block 31; the second end 42 of each elastic connector 4 is connected to the shell 1, and an outer stop block 44 is provided on the side of each second end 42 facing away from the shell 1, and the outer stop block 44 is used to fix the corresponding second end 42 and the shell 1.

[0055] Through the design of the inner stop block 43 and the outer stop block 44, the connection between the elastic connector 4 and the mass block 31 and the shell 1 is strengthened, the mechanical strength and fatigue resistance of the connection of the elastic connector 4 are improved, and the elastic connector 4 is effectively prevented from loosening or deformation due to long-term vibration.

[0056] In one embodiment, two limit plates 12 are further provided on the shell 1. The two limit plates 12 are spaced apart on both sides of the mass block 31 along the first direction. The limit plates 12 are used to abut against the outer edge of the mass block 31 when the mass block 31 vibrates along the first direction.

[0057] The limit plate 12 is used to abut against the outer edge of the mass block 31 when the mass block 31 vibrates along the first direction, thereby limiting the range of motion and preventing the mass block 31 from vibrating too much and causing structural collision or damage; the limit plate 12 effectively constrains the vibration boundary of the mass block 31, ensuring that the vibration device 100 maintains a stable working state during high-frequency vibration.

[0058] The present invention also provides an electronic device that incorporates the aforementioned vibration device 100. The specific structure of the vibration device 100 is similar to that of the aforementioned embodiments. Specifically, the electronic device may be a handle, mobile phone, tablet, or smart wearable device with a vibration function. Because the electronic device utilizes all of the technical solutions of all of the aforementioned embodiments, it at least possesses all of the beneficial effects brought about by the technical solutions of the aforementioned embodiments, and therefore, no further details will be given here.

[0059] The above are only optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A vibration device, characterized in that: include: a housing, wherein a mounting cavity is formed in the housing; a stator assembly, the stator assembly comprising a coil structure, the coil structure being disposed in the mounting cavity; A vibrator assembly, wherein the coil structure enables the vibrator assembly to vibrate along a first direction relative to the stator assembly when energized; the vibrator assembly includes a mass block and two magnetic circuit structures disposed within the mounting cavity, the mass block being elastically connected to the housing and enclosing an mounting space, the coil structure and the two magnetic circuit structures being both located within the mounting space, the two magnetic circuit structures being spaced apart along a second direction and enclosing a magnetic gap, and the coil structure being located within the magnetic gap; Each of the magnetic circuit structures includes a magnetic conductive part and a magnetic part. Each of the magnetic conductive parts forms an installation slot with a slot facing the magnetic gap. The two magnetic conductive parts are arranged at intervals along the second direction. The side of each magnetic conductive part facing away from the slot is connected to the mass block, and a glue overflow groove is provided at the corner of each of the installation slots along at least one side of the third direction. The magnetic part is bonded to the installation slot by glue injection, wherein the first direction, the second direction and the third direction are perpendicular to each other.

2. The vibration device according to claim 1, wherein The magnetic conductive part includes a bottom edge and two side edges respectively arranged on both sides of the bottom edge along the first direction, the bottom edge and the two side edges form the installation groove, the connection between each side edge and the bottom edge forms the corner of the installation groove, and the connection between each side edge and the bottom edge is provided with a glue overflow groove on both sides along the third direction, and each glue overflow groove is formed by being recessed from the corresponding side edge along the third direction toward the other side edge.

3. The vibration device according to claim 2, wherein Both ends of the bottom edge along the first direction are provided with recessed portions, the recessed portions are located on a side of the bottom edge facing the magnetic component, and the recessed portions are recessed in a direction away from the magnetic component.

4. The vibration device according to claim 3, wherein One end of the side is connected to the recess, the thickness of the bottom corresponding to the recess is the same as the thickness of the side, and the side is bent from the connection between the side and the recess along the second direction toward the other magnetic conductive part to form the corner.

5. The vibration device according to claim 4, wherein Each of the side edges includes a connecting section and an abutting section, and the connecting section forms an abutting surface for abutting with the magnetic part on one side facing the mounting groove. One end of the connecting section is connected to the abutting section, and the other end is connected to the recess. The width of the connecting section along the third direction is the same as the width of the recess along the third direction, and both are smaller than the width of the abutting end and other areas of the bottom edge along the third direction, and the two side edges of the recess and the connecting section along the third direction are spliced ​​to form the glue overflow groove.

6. The vibration device according to claim 2, wherein The bottom edge protrudes along one side of the third direction to form a yoke bar, and the yoke bar forms a slope on a side facing the installation slot, and the slope is inclined in a direction away from the bottom edge and away from the installation slot.

7. The vibration device according to any one of claims 1 to 6, characterized in that The mass block is elastically connected to the shell through an elastic component, and the elastic component includes two spring plates, which are respectively arranged on both sides of the mass block along the first direction; one end of each spring plate is connected to one side of the mass block along the second direction, and the other end is located on the other side of the mass block along the second direction and connected to the shell.

8. The vibration device according to any one of claims 1 to 6, characterized in that The coil structure includes an iron core and a coil, the axis of the coil is parallel to the first direction, the iron core includes two pole shoes spaced apart along the first direction and a winding portion connected between the two pole shoes, and the coil is wound outside the winding portion.

9. The vibration device according to any one of claims 1 to 6, characterized in that Two grooves are respectively provided on both sides of the mass block along the first direction, and a damping member is provided in each of the grooves, and the damping member is used to abut against the coil structure when the mass block vibrates along the first direction; The thickness of the damping member along the third direction is smaller than the thickness of the corresponding groove along the third direction. The opening and the bottom wall of the groove are respectively located on both sides of the groove along the third direction. The damping member is connected to the bottom wall of the groove so that the side of the damping member facing the opening of the groove and the groove side wall of the groove form a glue overflow channel.

10. An electronic device, characterized in that: The electronic device is applied with the vibration device according to any one of claims 1 to 9.

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