Vibration devices and electronic equipment

Abstract

This invention discloses a vibration device and electronic device, relating to the field of micro-vibration technology. The vibration device includes a housing, a stator assembly, and an oscillator assembly, with a mounting cavity formed within the housing. The stator assembly includes a coil structure disposed within the mounting cavity. The oscillator assembly includes a mass block and two magnetic circuit structures disposed within the mounting cavity. The mass block is elastically connected to the housing and encloses an mounting space, with the coil structure and the two magnetic circuit structures both located within the mounting space. Each magnetic circuit structure includes a magnetic conductor and a magnetic component. Each magnetic conductor forms a mounting groove with its opening facing the magnetic gap. The side of each magnetic conductor away from the groove opening is connected to the mass block. At least one side along a third direction at each corner of the mounting groove has an overflow groove. The magnetic component is bonded to the mounting groove by adhesive injection. This invention provides expanded space for adhesive injection through the design of the overflow groove, allowing the adhesive to form a thicker adhesive layer at the corners, resulting in a more stable bond between the magnetic conductor and the magnetic component, preventing detachment.

Description

Technical Field

[0001] This invention relates to the field of micro-vibration technology, and in particular to a vibration device and electronic device. Background Technology

[0002] A vibration device is a device that directly converts electrical energy into linear motion without the need for intermediate transmission mechanisms (such as gears and belts) in traditional rotary motors. It has advantages such as high speed, high precision, low noise, and simple structure. Vibration devices are core components that provide tactile feedback in electronic devices.

[0003] Existing vibration devices include a magnetic circuit structure. The magnetic conductive parts and magnetic parts in the magnetic circuit structure are usually connected by adhesive. However, during repeated vibration of the magnetic circuit structure, the adhesive between the magnetic conductive parts and magnetic parts is prone to delamination or failure, which leads to a deterioration in the overall vibration effect of the vibration device and affects the performance of electronic equipment. Summary of the Invention

[0004] The main objective of this invention is to provide a vibration device and electronic device that aims to solve the technical problem that the bonding between the magnetic conductive component and the magnetic component of the vibration device is prone to separation or failure in the prior art.

[0005] To achieve the above objectives, the vibration device proposed in this invention includes:

[0006] A housing, wherein a mounting cavity is formed within the housing;

[0007] A stator assembly, the stator assembly including a coil structure disposed within the mounting cavity;

[0008] An oscillator assembly, wherein the coil structure enables the oscillator assembly to vibrate relative to the stator assembly along a first direction when energized; the oscillator 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 forming an mounting space, the coil structure and the two magnetic circuit structures being located within the mounting space, the two magnetic circuit structures being spaced apart along a second direction and forming a magnetic gap, and the coil structure being located within the magnetic gap;

[0009] Each of the magnetic circuit structures includes a magnetic conductor and a magnetic component. Each magnetic conductor forms a mounting groove with its opening facing the magnetic gap. Two magnetic conductors are spaced apart along the second direction. The side of each magnetic conductor away from the opening is connected to the mass block. An overflow groove is provided at least one side of the corner of each mounting groove along the third direction. The magnetic component is bonded to the mounting groove by injection of adhesive. The first direction, the second direction, and the third direction are perpendicular to each other.

[0010] In one embodiment, the magnetic conductive element includes a bottom edge and two side edges respectively disposed on both sides of the bottom edge along the first direction. The bottom edge and the two side edges form the mounting groove. The connection between each side edge and the bottom edge forms a corner of the mounting groove. Each side edge and the bottom edge are provided with an overflow groove on both sides along the third direction. Each overflow groove is recessed from the corresponding side edge along the third direction toward the other side edge.

[0011] In one embodiment, the bottom edge is provided with recesses at both ends along the first direction, the recesses are located on the side of the bottom edge facing the magnetic element, and the recesses are recessed in a direction away from the magnetic element.

[0012] 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, and the side bends from its connection with the recess along the second direction toward another magnetic conductor to form the corner.

[0013] In one embodiment, each of the side edges includes a connecting section and an abutting section. The side of the connecting section facing the mounting groove forms an abutting surface for abutting the magnetic component. 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. The recess and the connecting section are joined together along the two sides of the third direction to form the overflow groove.

[0014] In one embodiment, the bottom edge protrudes to form a magnetic yoke bar on one side along the third direction, and the side of the magnetic yoke bar facing the mounting groove forms a slope, the slope being inclined in a direction away from the mounting groove in a direction away from the bottom edge.

[0015] In one embodiment, the mass block is elastically connected to the housing via an elastic component, the elastic component including two spring pieces, the two spring pieces being respectively disposed on both sides of the mass block along the first direction; one end of each spring piece 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 housing.

[0016] In one embodiment, the coil structure includes an iron core and a coil, the axis of the coil being parallel to the first direction, the iron core including two pole shoes spaced apart along the first direction and a winding portion connected between the two pole shoes, and the coil being wound around the winding portion.

[0017] In one embodiment, the mass block is provided with two grooves on both sides along the first direction, and a damping element is provided in each groove. The damping element is used to abut against the coil structure when the mass block vibrates along the first direction.

[0018] The thickness of the damping element along the third direction is less than the thickness of the corresponding groove along the third direction. The opening of the groove and the bottom wall of the groove are respectively located on both sides of the groove along the third direction. The damping element is connected to the bottom wall of the groove so that the side of the damping element facing the opening of the groove and the side wall of the groove form an overflow channel.

[0019] The present invention also provides an electronic device that incorporates the above-described vibration device.

[0020] The technical solution of this invention provides an overflow groove at least on one side along a third direction at the corner of the mounting groove of the magnetic component. The overflow groove provides space for the glue to overflow, so that the adhesive forms a thickened adhesive layer at the corner, increasing the bonding area between the magnetic component and the magnetic component, dispersing vibration stress. At the same time, compared with the traditional adhesive layer, the thickened adhesive layer can significantly enhance the shear and tensile strength of the adhesive during repeated vibration, making the bonding between the magnetic component and the magnetic component more stable and less prone to delamination. This avoids the situation where the magnetic component and the magnetic component delamination and failure occur during repeated vibration of the magnetic circuit structure. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the exploded structure of a vibration device according to an embodiment of the present invention;

[0023] Figure 2 This is a partial structural schematic diagram of a vibration device provided in an embodiment of the present invention from one viewpoint;

[0024] Figure 3 A partial structural schematic diagram of a vibration device provided in an embodiment of the present invention from another perspective;

[0025] Figure 4 This is a schematic diagram of the mass block and damping component of a vibration device provided in an embodiment of the present invention;

[0026] Figure 5This is a schematic diagram of the structure of the housing and stator assembly of a vibration device according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the magnetic conductive component of a vibration device according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the magnetic conductive component and the magnetic component of the vibration device provided in an embodiment of the present invention.

[0029] Explanation of icon numbers:

[0030] 100. Vibration device; 1. Housing; 11. Mounting cavity; 12. Limiting plate; 13. Upper shell; 14. Lower shell; 2. Stator assembly; 21. Coil structure; 211. Iron core; 212. Coil; 213. Pole shoe; 214. Winding section; 22. Circuit board; 3. Oscillator assembly; 31. Mass block; 311. Groove; 312. Groove bottom wall; 313. Opening; 314. Inner wall; 315. Outer wall; 316. Recess; 32. Magnetic circuit structure; 321. Magnetic conductor; 3211. Bottom edge; 32111. 3212 Recess; 32121 Side; 32122 Connecting section; 32122 Abutting section; 32123 Abutting surface; 3213 Magnetic yoke bar; 3214 Slope; 322 Magnetic component; 323 Mounting groove; 324 Glue overflow groove; 33 Mounting space; 34 Magnetic gap; 35 Glue overflow channel; 4. Elastic connector; 41 First end; 42 Second end; 43 Inner stop block; 44 Outer stop block; 5. Damping component; 51 Middle part; 52 First fixing part; 53 Second fixing part; 531 Contact surface.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0035] Existing vibration devices include a magnetic circuit structure. The magnetic conductive parts and magnetic parts in the magnetic circuit structure are usually connected by adhesive. However, during repeated vibration of the magnetic circuit structure, the adhesive between the magnetic conductive parts and magnetic parts is prone to delamination or failure, resulting in a deterioration in the overall vibration effect of the vibration device.

[0036] To address the above problems, the present invention proposes a vibration device 100.

[0037] 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 an oscillator assembly 3. A mounting cavity 11 is formed within the housing 1. The stator assembly 2 includes a coil structure 21 disposed within the mounting cavity 11. When energized, the coil structure 21 enables the oscillator assembly 3 to vibrate relative to the stator assembly 2 along a first direction. The oscillator assembly 3 includes a mass block 31 and two magnetic circuit structures 32 disposed within the mounting cavity 11. The mass block 31 is elastically connected to the housing 1 and forms a mounting space 33. The coil structure 21 and the two magnetic circuit structures 32 are all located within the mounting space 33. The magnetic circuit structures 32 are spaced apart along the second direction and form a magnetic gap 34. The coil structure 21 is located within the magnetic gap 34. Each magnetic circuit structure 32 includes a magnetic conductor 321 and a magnetic component 322. Each magnetic conductor 321 forms a mounting groove 323 with its opening facing the magnetic gap 34. Two magnetic conductors 321 are spaced apart along the second direction. The side of each magnetic conductor 321 facing away from the opening is connected to the mass block 31. At least one side of each corner of each mounting groove 323 along the third direction is provided with an overflow groove 324. The magnetic component 322 is bonded to the mounting groove 323 by injection of glue. The first direction, the second direction and the third direction are perpendicular to each other.

[0038] Understandably, 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. Since the coil structure 21 is fixed to the housing 1, the magnetic circuit structure 32 will be driven to vibrate. The magnetic circuit structure 32 is connected to the mass block 31, and the mass block 31 is connected to the housing 1, thus the magnetic circuit structure 32 drives the mass block 31 to vibrate together. It should be noted that the first direction is... Figure 3 The left and right directions, the second direction is Figure 3 The forward and backward directions in the middle, and the third direction is... Figure 3 The up and down directions in the middle.

[0039] The technical solution of the present invention provides an overflow groove 324 at least on one side along a third direction at the corner of the mounting groove 323 of the magnetic component 321. The overflow groove 324 provides space for the overflow of adhesive, so that the adhesive forms a thickened adhesive layer at the corner, increasing the bonding area between the magnetic component 321 and the magnetic component 322, dispersing vibration stress. At the same time, compared with the traditional adhesive layer, the thickened adhesive layer can significantly enhance the shear and tensile strength of the adhesive during repeated vibration, making the bonding between the magnetic component 321 and the magnetic component 322 more stable and less prone to delamination. This avoids the situation of delamination and failure between the magnetic component 321 and the magnetic component 322 during repeated vibration of the magnetic circuit structure 32.

[0040] In one embodiment, the magnetic conductive element 321 includes a bottom edge 3211 and two side edges 3212 respectively disposed on both sides of the bottom edge 3211 along a 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. Each side edge 3212 and the bottom edge 3211 are provided with an overflow groove 324 on both sides along a third direction. Each overflow groove 324 is recessed from the corresponding side edge 3212 towards the other side edge 3212 along a third direction.

[0041] The three-sided structure formed by the bottom edge 3211 and the two side edges 3212 provides a stable cover for the magnetic component 322, allowing the magnetic component 322 to be bonded to the magnetic conductor 321 from three sides. Compared with the traditional planar groove structure, this structure has a larger bonding area and higher resistance to displacement, preventing the magnetic component 322 from shifting or becoming eccentric during vibration and improving the alignment accuracy of the magnetic circuit. The connection between the bottom edge 3211 and the side edges 3212 is usually the area where bending stress is most concentrated. The overflow groove 324 not only provides space for adhesive but also provides space for fine-tuning and avoiding metal deformation, preventing the metal from turning outward or collapsing inward during bending, which could cause groove deformation and thus avoid interference or dimensional deviations during the installation of the magnetic component 322.

[0042] Under normal circumstances, the magnetic component 322 is a magnet, and the magnetic conductive component 321 is a washer.

[0043] In one embodiment, the bottom edge 3211 is provided with recesses 32111 at both ends along the first direction. The recesses 32111 are located on the side of the bottom edge 3211 facing the magnetic element 322, and the recesses 32111 are recessed in a direction away from the magnetic element 322.

[0044] Meanwhile, the recesses 32111 at both ends of the bottom edge 3211 along the first direction are recessed in the direction away from the magnetic component 322, so that the recesses 32111 are located at the corner of the mounting groove 323, that is, at the bending point of the magnetic component 321. The recesses 32111 serve as clearance space, which can absorb the material squeeze generated when the magnetic component 321 is bent to form the mounting groove 323, avoid assembly interference caused by the deformation of the inner corner due to material squeeze, and ensure the dimensional accuracy of the magnetic circuit structure 32.

[0045] One end of the side edge 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 edge 3212. The side edge 3212 bends from its connection with the recess 32111 along the second direction toward the other magnetic conductive member 321 to form the corner.

[0046] The thickness of the recess 32111 is the same as the thickness 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 thickness of the recess 32111 and the side 3212 is the same. After the pressing is completed, the side 3212 is bent. The recess 32111 and the side 3212 absorb the extrusion material generated inside the bend, thus ensuring the dimensional accuracy of the magnetic circuit structure 32.

[0047] In one embodiment, each side 3212 includes a connecting section 32121 and an abutting section 32122. The side of the abutting section 32122 facing the mounting groove 323 forms an abutting surface 32123 for abutting against the magnetic component 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. The recess 32111 and the connecting section 32121 are spliced ​​together along the two sides of the third direction to form an overflow groove 324.

[0048] The abutting section 32122 forms an independent abutting surface 32123, enabling the magnetic component 322 to stably fit with the magnetic conductive component 321 and providing reliable end face positioning. The recess 32111 and the connecting portion have the same width along the third direction, but are smaller than the width of the bottom edge along the third direction, so that the two sides of the recess 32111 and the connecting portion along the third direction can also be used to provide overflow space for adhesive. The two side edges of the recess 32111 and the connecting section 32121 along the third direction form an overflow groove 324, so that the overflowing adhesive can form a thickened anchoring structure in the overflow groove 324, enhancing the bonding strength between the magnetic conductive component 321 and the magnetic component 322.

[0049] In one embodiment, the bottom edge 3211 protrudes along one side of the third direction to form a magnetic yoke 3213, the first direction, the second direction and the third direction are perpendicular to each other, and the side of the magnetic yoke 3213 facing the mounting groove 323 forms a slope 3214, the slope 3214 is inclined in the direction away from the mounting groove 323 along the direction away from the bottom edge 3211.

[0050] It should be noted that the third party is... Figure 3 The up and down directions in the middle.

[0051] The bottom edge 3211 protrudes along one side of the third direction to form a magnetic yoke strip 3213, which increases the size of the magnetic conductor 321 in the third direction, giving it a stronger magnetic conductivity, which is beneficial for closing the magnetic circuit and increasing the magnetic flux density. The side of the magnetic yoke strip 3213 facing the mounting groove 323 forms a slope 3214, and the slope 3214 is inclined in the direction away from the bottom edge 3211 and away from the mounting groove 323, serving as a diffusion and accumulation area for the adhesive during the glue injection process, effectively providing space for glue overflow, thereby further increasing the bonding strength between the magnetic component 322 and the magnetic conductor 321.

[0052] Please see 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 a 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. The coil 212 is wound around the winding portion 214.

[0053] The axial direction of coil 212 is parallel to the first direction, so that the magnetic field generated by coil 212 is concentrated and distributed along the first direction, thereby causing the magnetic force on the oscillator assembly 3 to act along the first direction, improving the controllability and motion stability of the vibration path of the oscillator assembly 3, ensuring the precise vibration of mass block 31 along the predetermined direction, reducing lateral offset or tilt, and enhancing the response accuracy and overall reliability of vibration device 100.

[0054] The two pole shoes 213 are connected to the housing 1. The two pole shoes 213 respectively abut against the damping members 5 arranged on both sides of the mass block 31 along the first direction. This ensures that the mass block 31 can effectively buffer the pole shoes 213 of the iron core 211 through the damping members 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.

[0055] Please combine Figures 2 to 4 In one embodiment, the mass block 31 is provided with two grooves 311 on both sides along the first direction, and a damping element 5 is provided in each groove 311. The damping element 5 is used to abut against the coil structure 21 when the mass block 31 vibrates along the first direction.

[0056] 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 side wall of the groove 311 form an overflow channel 35.

[0057] Two grooves 311 are respectively provided on both sides of the mass block 31 along the first direction. Each groove 311 is provided with a damping element 5. The damping element 5 abuts against the coil structure 21 and can play a buffering and guiding role when the mass block 31 vibrates along the first direction. The flexible design of the damping element 5 has a certain elastic deformation capability, 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.

[0058] The thickness of the damping element 5 along the third direction is less than the thickness of the groove 311 along the third direction, so that the side of the damping element 5 facing the opening 313 of the groove 311 forms an overflow channel 35. The overflow channel 35 allows the damping element 5 to be bonded to both sides along the third direction with adhesive, which improves the stability of the damping element 5, thereby improving the reliability and stability of the bonding between the damping element 5 and the mass block 31. The overflow channel 35 is used to provide space for adhesive, so that excess adhesive can fill the overflow channel 35, increase the bonding area, and disperse vibration stress.

[0059] In one specific embodiment, the damping element 5 is foam. The foam has good elasticity and compression recovery ability, which 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 collision and extending the service life of the coil structure 21. Moreover, the foam material has good shock absorption and noise reduction effect at the moment of contact, which can effectively suppress the structural noise generated by the impact.

[0060] In one embodiment, the housing 1 includes an upper housing 13 and a lower housing 14, which together form a mounting cavity 11. The stator assembly 2 also includes a circuit board 22, which is mounted on the lower housing 14 and electrically connected to the coil 212.

[0061] The mass block 31 has recesses 316 on both sides of the groove 311 along the first direction. The first fixing part 52 is at least partially located in the recess 316 on the side facing the mounting space 33, and the second fixing part 53 is at least partially located in the recess 316 on the side away from the mounting space 33. The size of the recess 316 along the second direction is larger than the size of the groove 311 along the second direction.

[0062] The first fixing part 52 and the second fixing part 53 cooperate with the recessed part 316, so that the damping member 5 is confined within the groove 311 along the first direction. The cooperation between the middle part 51 and the groove 311 confins the damping member 5 within the groove 311 along the second direction. This ensures that the damping member 5 maintains a stable installation state under the constraint of the recessed part 316, preventing the damping member 5 from shifting or loosening 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 part 52 is at least partially located towards the... The recess 316 on one side of the mounting space 33 provides a clear limiting position for the first fixing part 52 when it is spaced apart from or abuts against the iron core 211, enabling it to reliably provide buffer protection and prevent it from failing to make effective contact with the iron core 211 due to offset. The second fixing part 53 is at least partially located in the recess 316 on the side opposite to the mounting space 33, so that the second fixing part 53 can be supported and restricted by the recess 316 when it is spaced apart from or abuts against the elastic connector 4, preventing it from offsetting or failing during the vibration return process.

[0063] In one embodiment, the mass block 31 is arranged in a ring shape. 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. The inner wall 314 and the outer wall 315 are both provided with recesses 316 near the groove 311. 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. The second fixing part 53 abuts against the position of the recess 316 on the outer wall 315, and the first fixing part 52 abuts against the position of the recess 316 on the inner wall 314.

[0064] The mass block 31 is arranged in a ring, which makes the overall mass distribution of the vibration device 100 more uniform. This is beneficial for 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. This allows the first fixing part 52 to abut against the recess 316 on the inner wall 314, and the second fixing part 53 to abut against the recess 316 on the outer wall 315. The middle part 51 passes through the groove 311, so that the damping member 5 can form a "wide end limiting and narrow end passing through" structural relationship on both sides along the first direction. This provides a stable limiting effect, prevents the damping member 5 from shifting towards the coil structure 21 or the elastic connector 4, and improves the overall stability of the damping member 5.

[0065] Each of the second fixing parts 53 forms an inclined contact surface 531 on the side edge away from the magnetic gap 34. The contact surface 531 is used to abut against the side of the elastic connector 4 disposed on the same side as it toward the second fixing part 53.

[0066] Each second fixing part 53 forms a contact surface 531 inclined in the second direction on the side edge away from the magnetic gap 34. The contact surface 531 abuts against the side of the elastic connector 4 on the same side facing the second fixing part 53, so that the side of the elastic connector 4 facing the second fixing part 53 can also form an inclined contact with the contact surface 531, which plays a dual role of buffering and guiding and limiting, reducing instantaneous impact force and extending the service life of the structure.

[0067] In one embodiment, the elastic connector 4 is a U-shaped elastic connector 4 with its opening facing the mass block 31. The two ends of the opening of the elastic connector 4 are a first end 41 and a second end 42, respectively. The first end 41 of each elastic connector 4 is connected to the mass block 31. An inner stop block 43 is provided on the side of each first end 41 away from the mass block 31. The inner stop block 43 is used to fix the corresponding first end 41 to the mass block 31. The second end 42 of each elastic connector 4 is connected to the housing 1. An outer stop block 44 is provided on the side of each second end 42 away from the housing 1. The outer stop block 44 is used to fix the corresponding second end 42 to the housing 1.

[0068] The design of the inner stop 43 and the outer stop 44 strengthens the connection between the elastic connector 4, the mass block 31 and the shell 1, improves the mechanical strength and fatigue resistance of the connection of the elastic connector 4, and effectively prevents the elastic connector 4 from loosening or deforming due to long-term vibration.

[0069] In one embodiment, the housing 1 is further provided with two limiting plates 12, which are spaced apart on both sides of the mass block 31 along the first direction. The limiting 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.

[0070] The limiting 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, which could lead to structural collision or damage. The limiting 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.

[0071] The present invention also provides an electronic device that applies the aforementioned vibration device 100. The specific structure of the vibration device 100 is as described in the above embodiments. Specifically, the electronic device may be a handle, mobile phone, tablet, or smart wearable device with vibration function. Since this electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0072] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A vibration device, characterized by, The application relates to a shell, a stator assembly and a vibrator assembly. The shell comprises a mounting cavity formed in the shell. The stator assembly comprises a coil structure arranged in the mounting cavity. The coil structure can drive the vibrator assembly to vibrate relative to the stator assembly along a first direction when the coil structure is energized. The vibrator assembly comprises a mass block and two magnetic circuit structures arranged in the mounting cavity. The mass block is elastically connected to the shell.

2. The vibration apparatus of claim 1, wherein The mass block surrounds a mounting space.

3. The vibration apparatus of claim 2, wherein The coil structure and the two magnetic circuit structures are located in the mounting space.

4. The vibration apparatus of claim 3, wherein The two magnetic circuit structures are spaced apart along a second direction and surround a magnetic gap.

5. The vibration apparatus of claim 1, wherein The coil structure is located in the magnetic gap. Each magnetic circuit structure comprises a magnetic conducting member and a magnetic member. Each magnetic conducting member surrounds a mounting groove with a notch facing the magnetic gap. The two magnetic conducting members are spaced apart along the second direction. Each magnetic conducting member is connected to the mass block on a side away from the notch. At least one side of a corner of each mounting groove along a third direction is provided with a glue overflow groove. The magnetic member is adhered in the mounting groove by glue injection. The first direction, the second direction and the third direction are perpendicular to each other. The magnetic conducting member comprises a bottom edge and two side edges arranged on both sides of the bottom edge along the first direction. The bottom edge and the two side edges surround the mounting groove. The connection between each side edge and the bottom edge forms a corner of the mounting groove. Glue overflow grooves are arranged on both sides of the connection between each side edge and the bottom edge along the third direction. Each glue overflow groove is recessed from one side edge of the corresponding side edge along the third direction to the other side edge. Both ends of the bottom edge along the first direction are provided with recesses. The recesses are located on a side of the bottom edge facing the magnetic member. The recesses are recessed away from the magnetic member. One end of the side edge 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. The side edge is bent from the connection between the side edge and the recess along the second direction to the other magnetic conducting member to form the corner. Each side edge comprises a connecting section and an abutting section. One end of the connecting section is connected to the abutting section. The other end of the connecting section 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. The width of the connecting section along the third direction is smaller than the width of the abutting section and other regions of the bottom edge along the third direction. The two side edges of the recess and the connecting section along the third direction are spliced to form the glue overflow groove. One side of the bottom edge along the third direction protrudes to form a magnetic yoke bar. A slope is formed on a side of the magnetic yoke bar facing the mounting groove. The slope is inclined away from the mounting groove along a direction away from the bottom edge.

6. The vibration apparatus of any one of claims 1 to 5, wherein, The mass is elastically connected with the shell through an elastic assembly, the elastic assembly comprises two elastic sheets, the two elastic sheets are respectively arranged on two sides of the mass along the first direction; one end of each elastic sheet is connected with one side of the mass along the second direction, the other end is located on the other side of the mass along the second direction and is connected with the shell.

7. The vibration apparatus of any one of claims 1 to 5, wherein The coil structure comprises a core and a coil, an axis of the coil is parallel to the first direction, the core comprises two pole shoes arranged at intervals along the first direction and a winding part connected between the two pole shoes, and the coil is wound outside the winding part.

8. The vibration apparatus of any one of claims 1 to 5, wherein, Two recesses are respectively arranged on two sides of the mass along the first direction, a damping member is arranged in each recess, and the damping member is used for abutting against the coil structure when the mass vibrates along the first direction; A thickness of the damping member along the third direction is less than a thickness of the corresponding recess along the third direction, an opening and a bottom wall of the recess are respectively located on two sides of the recess along the third direction, the damping member is connected with the bottom wall of the recess, so that one side of the damping member facing the opening of the recess and the side wall of the recess form a glue overflow channel.

9. An electronic device, comprising: The electronic device is applied with the vibration device as claimed in any one of claims 1 to 8.

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