Vibration device and electronic device

Abstract

The application discloses a kind of vibrating device and electronic equipment, it is related to microvibration technical field, wherein, vibrating device includes shell, vibrator assembly and stator assembly, installation cavity is formed in shell;Vibrator assembly is elastically installed in installation cavity by two elastic connecting pieces, and vibrator assembly includes yoke and magnetic circuit assembly, and elastic connecting piece includes connecting arm, fixed part and elastic arm, yoke includes first magnetic conducting plate and second magnetic conducting plate, magnetic circuit assembly is located between first magnetic conducting plate and second magnetic conducting plate, first magnetic conducting plate both ends are provided with first protruding part, second magnetic conducting plate both ends are provided with second protruding part, the both ends of connecting arm are respectively connected with the first protruding part and second protruding part of same side setting, and one end of connecting arm is connected with elastic arm.The application provides resilience and damping buffering effect by elastic connecting piece, effectively limit the force of yoke and stator assembly collision in vibration process, reduce the damage caused by stator assembly and vibrator assembly collision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-vibration, in particular to a vibration device and electronic equipment. BACKGROUND

[0002] The vibration device is a device for directly converting electric energy into linear motion, without the intermediate transmission mechanism (such as gears, belts, etc.) of the traditional rotating motor, and has the advantages of high speed, high precision, low noise and simple structure. The vibration device is a core component for providing haptic feedback of electronic equipment.

[0003] In the prior art vibration device, the product with large vibration feeling is prone to noise problem and damage of the vibrator assembly or the stator assembly due to collision between the vibrator assembly and the stator assembly during vibration process after assembly, thereby affecting the service life of the vibration device. SUMMARY

[0004] The main purpose of the present application is to provide a vibration device and electronic equipment, which aims to solve the problems of noise and damage caused by collision between the vibrator assembly and the stator assembly in the prior art.

[0005] To achieve the above purpose, the vibration device provided by the present application comprises:

[0006] A shell, wherein an installation cavity is formed in the shell;

[0007] A vibrator assembly, wherein the vibrator assembly is elastically mounted in the installation cavity through two elastic connecting pieces, the vibrator assembly comprises a magnetic yoke and a magnetic circuit assembly, the two elastic connecting pieces are connected to the two sides of the magnetic yoke along a first direction, the elastic connecting piece comprises a connecting arm connected with the magnetic yoke, a fixed part directly or indirectly connected with the shell, and an elastic arm connecting the connecting arm and the fixed part, the magnetic yoke comprises a first magnetic conducting plate and a second magnetic conducting plate arranged at intervals along a third direction perpendicular to the first direction, and a connecting plate connecting the first magnetic conducting plate and the second magnetic conducting plate, the magnetic circuit assembly is located between the first magnetic conducting plate and the second magnetic conducting plate and is fixed to the first magnetic conducting plate and / or the second magnetic conducting plate, the first magnetic conducting plate is provided with a first protruding part at both ends along the first direction, the second magnetic conducting plate is provided with a second protruding part at both ends along the first direction, the first protruding part and the second protruding part are oppositely arranged along the third direction, the two ends of the connecting arm are respectively connected with the first protruding part and the second protruding part arranged on the same side, and one end of the connecting arm is connected with the elastic arm;

[0008] A stator assembly is mounted in the mounting cavity, the stator assembly comprises a coil and a support, the support is connected to the shell and supports the coil, the coil is located between the first magnetic conductive plate and the second magnetic conductive plate and is spaced apart from the magnetic circuit assembly along the third direction; the coil can make the vibrator assembly vibrate relative to the stator assembly along the first direction when energized.

[0009] In an embodiment, both ends of the first magnetic conductive plate along the first direction are provided with two first protruding portions, two first protruding portions on the same side are spaced apart along the second direction, both ends of the second magnetic conductive plate along the first direction are provided with two second protruding portions, two second protruding portions on the same side are spaced apart along the second direction, each elastic connecting piece comprises two connecting arms and two elastic arms, two connecting arms are arranged along the second direction and are connected to the first protruding portion and the second protruding portion opposite along the third direction respectively, the fixed portion is connected to two connecting arms through two elastic arms respectively, the first direction, the second direction and the third direction are perpendicular to each other.

[0010] In an embodiment, each elastic arm comprises a first elastic segment, a second elastic segment, a third elastic segment and a fourth elastic segment connected in sequence, wherein the first elastic segment extends from one end of the connecting arm connected thereto along the third direction towards the other end of the connecting arm, the second elastic segment extends along the second direction towards the other connecting arm, the third elastic segment extends along the third direction towards one end of the connecting arm, and the fourth elastic segment extends along the second direction towards the corresponding connecting arm and is connected to the fixed portion.

[0011] In an embodiment, the fixed portion is a center of symmetry, and the elastic connecting piece is centrally symmetric relative to the center of symmetry.

[0012] In an embodiment, the second ends of the two elastic arms are connected to each other as a center of symmetry, and the elastic arms are centrally symmetric relative to the center of symmetry.

[0013] In an embodiment, a fixing table is further included, the fixing table is connected to the fixed portion and the inner wall of the shell respectively.

[0014] In an embodiment,

[0015] In the first direction, the fixed portion protrudes towards the inner wall of the shell on the same side to form a fixing table connected to the inner wall of the shell;

[0016] Or,

[0017] The inner wall of each side of the shell along the first direction protrudes towards the fixing part arranged on the same side of the fixing part to form a fixing table connected with the fixing part.

[0018] In an embodiment, the magnetic circuit assembly comprises a first magnetic part and a second magnetic part oppositely arranged along the third direction, the first magnetic part is fixed to one side of the first magnetic conductive plate facing the second magnetic conductive plate, the second magnetic part is fixed to one side of the second magnetic conductive plate facing the first magnetic conductive plate, the coil is located between the first magnetic part and the second magnetic part, and the first magnetic part, the coil and the second magnetic part are arranged at intervals.

[0019] In an embodiment, the connecting plates are formed by extending from both sides of the first magnetic conductive plate along the second direction towards the second magnetic conductive plate, one end of each connecting plate away from the first magnetic conductive plate is connected with the second magnetic conductive plate, and the first direction, the second direction and the third direction are perpendicular to each other.

[0020] In an embodiment, the bracket comprises a support plate supporting the coil and a bending part, at least two bending parts are arranged at both ends of the support plate along the second direction, the bending parts are fixedly attached to the shell, and at least two bending parts on the same side are distributed on both sides of the connecting plate on the same side along the first direction.

[0021] And / or, one of the end of the connecting plate close to the second magnetic conductive plate and the second magnetic conductive plate corresponding to the connecting plate is provided with a boss, and the other is provided with a groove matched with the boss.

[0022] The application also provides an electronic device applying the above-mentioned vibration device.

[0023] The technical scheme of the application provides the elastic connecting piece on both sides of the magnetic yoke along the first direction, the connecting arm of the connecting piece connects the magnetic yoke, the elastic arm provides the deformation resilience, the fixing part connects the shell, so that the elastic connecting piece can provide the resilience and effectively buffer the impact in the movement process, plays the damping buffering role, generates the reaction force before the magnetic yoke reaches the vibration boundary, effectively limits the force of the collision between the magnetic yoke and the magnetic circuit assembly and the shell in the vibration process, thereby avoiding the hard collision with the vibrator assembly with excessive force, reducing the noise, preventing the damage caused by the collision of the vibrator assembly, the design of the first protruding part and the second protruding part limits and widens the connection position of the elastic connecting piece and the first magnetic conductive plate and the second magnetic conductive plate, so that the fixing of the connecting arm is more stable, avoids the loosening or damage of the connection point caused by the stress concentration, and improves the connection stability of the connecting arm and the magnetic yoke.

[0024] The first magnetic conducting plate and the second magnetic conducting plate form a magnetic yoke, and the first magnetic conducting plate and the second magnetic conducting plate enclose a magnetic yoke cavity, so that the magnetic gap size of the magnetic circuit assembly is uniform, the magnetic gap on both sides of the coil structure caused by movement of the magnetic circuit assembly during vibration is prevented from being uneven, the vibrator assembly always vibrates in the first direction, the stability of vibration is improved, so that the two elastic connecting pieces arranged at intervals in the first direction can maximize the buffering of the magnetic yoke and the magnetic circuit assembly, reduce noise and damage caused by collision, thereby solving the problems that the vibrator assembly is prone to noise and damage in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0026] Figure 1 A structural schematic diagram of a vibration device provided by an embodiment of the present application is shown in the figure.

[0027] Figure 2 A partial structural schematic diagram of a vibration device provided by an embodiment of the present application is shown in the figure.

[0028] Figure 3 A structural schematic diagram of a vibrator assembly of a vibration device provided by an embodiment of the present application is shown in the figure.

[0029] Figure 4 A structural schematic diagram of an elastic connecting piece of a vibration device provided by an embodiment of the present application is shown in the figure.

[0030] Explanation of reference numerals:

[0031] 100, vibration device; 1, shell; 11, mounting cavity; 12, upper shell; 13, middle shell; 14, lower shell; 2, vibrator assembly; 21, magnetic yoke; 211, first magnetic conducting plate; 212, second magnetic conducting plate; 2121, groove; 213, connecting plate; 2131, boss; 214, first protruding part; 215, second protruding part; 22, magnetic circuit assembly; 221, first magnetic part; 222, second magnetic part; 23, elastic connecting piece; 231, connecting arm; 232, elastic arm; 2321, first elastic section; 2322, second elastic section; 2323, third elastic section; 2324, fourth elastic section; 233, fixed part; 24, magnetic yoke cavity; 25, magnetic gap; 3, stator assembly; 31, coil; 32, support; 321, support plate; 322, bending part; 4, fixed table.

[0032] The objectives, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the shell parts in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0035] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skill in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0036] In the prior art vibration device, the product with large vibration feeling is prone to produce noise problem and damage the vibrator assembly or the stator assembly due to collision during the vibration process of the vibrator assembly and the stator assembly after assembly, thereby affecting the service life of the vibration device.

[0037] To solve the above problems, the present application provides a vibration device 100.

[0038] Please refer to Figures 1 to 3The vibration device 100 of the embodiment comprises a shell 1, a vibrator assembly 2 and a stator assembly 3, the shell 1 is internally formed with a mounting cavity 11; the vibrator assembly 2 is elastically mounted in the mounting cavity 11 through two elastic connecting members 23, the vibrator assembly 2 comprises a magnetic yoke 21 and a magnetic circuit assembly 22, the two elastic connecting members 23 are respectively connected to the two sides of the magnetic yoke 21 along a first direction, the elastic connecting member 23 comprises a connecting arm 231 connected with the magnetic yoke 21, a fixed part 233 directly or indirectly connected with the shell 1 and an elastic arm 232 connecting the connecting arm 231 and the fixed part 233, the magnetic yoke 21 comprises a first magnetic conducting plate 211 and a second magnetic conducting plate 212 arranged in a spaced manner along a third direction perpendicular to the first direction and a connecting plate 213 connecting the first magnetic conducting plate 211 and the second magnetic conducting plate 212, the magnetic circuit assembly 22 is located between the first magnetic conducting plate 211 and the second magnetic conducting plate 212 and is fixed to the first magnetic conducting plate 211 and / or the second magnetic conducting plate 212, the first magnetic conducting plate 211 is provided with a first protruding part 214 at each end along the first direction, the second magnetic conducting plate 212 is provided with a second protruding part 215 at each end along the first direction, the first protruding part 214 and the second protruding part 215 are oppositely arranged along the third direction, the two ends of the connecting arm 231 are respectively connected with the first protruding part 214 and the second protruding part 215 arranged on the same side, and one end of the connecting arm 231 is connected with the elastic arm 232.

[0039] The stator assembly 3 is mounted in the mounting cavity 11, the stator assembly 3 comprises a coil 31 and a support 32, the support 32 is connected with the shell 1 and supports the coil 31, the coil 31 is located between the first magnetic conducting plate 211 and the second magnetic conducting plate 212 and is arranged in a spaced manner with the magnetic circuit assembly 22 along the third direction; the coil 31 can make the vibrator assembly 2 vibrate relative to the stator assembly 3 along the first direction when energized.

[0040] Understandably, the coil 31 is connected with the shell 1 through the support 32 and is arranged in a spaced manner with the first magnetic conducting plate 211, the second magnetic conducting plate 212 and the magnetic circuit assembly 22, avoiding the interference between the support 32 and the magnetic yoke 21, which will not affect the vibration of the magnetic yoke 21, so that the coil 31 and the support 32 are fixed relative to the shell 1 and do not vibrate, while the magnetic field generated by the coil 31 structure interacts with the magnetic field of the magnetic circuit assembly 22 itself after the structure of the coil 31 is energized, at this time the magnetic circuit assembly 22 will be driven to vibrate, and the magnetic circuit assembly 22 is connected with the magnetic yoke 21, so as to drive the magnetic yoke 21 to vibrate together through the magnetic circuit assembly 22.

[0041] The technical scheme of the present application sets the elastic connecting piece 23 on both sides of the magnetic yoke 21 along the first direction, the connecting arm 231 of the connecting piece is connected with the magnetic yoke 21, the elastic arm 232 provides the deformation resilience, the fixed part 233 is connected with the shell 1, so that the elastic connecting piece 23 can provide the resilience and effectively buffer the impact in the movement process, play the damping buffering effect, generate the counterforce before the magnetic yoke 21 reaches the vibration boundary, effectively limit the force of the collision between the magnetic yoke 21 and the magnetic circuit assembly 22 and the shell 1 in the vibration process, thereby avoiding the hard collision with the vibrator assembly 2 with excessive force, thereby reducing the noise, preventing the damage caused by the collision of the vibrator assembly 2, the design of the first protruding part 214 and the second protruding part 215 limits and widens the connection position of the elastic connecting piece 23 and the first magnetic plate 211 and the second magnetic plate 212, so that the fixing of the connecting arm 231 is more stable, and the loosening or damage of the connecting point caused by stress concentration is avoided, and the connection stability of the connecting arm 231 and the magnetic yoke 21 is improved;

[0042] The first magnetic plate 211 and the second magnetic plate 212 form the magnetic yoke 21, and the first magnetic plate 211 and the second magnetic plate 212 form the magnetic yoke cavity 24, so that the size of the magnetic gap 25 surrounded by the magnetic circuit assembly 22 is uniform, preventing the magnetic gap 25 on both sides of the coil 31 structure from being uneven due to the movement of the magnetic circuit assembly 22 during vibration, so that the vibrator assembly 2 always vibrates in the first direction, improving the stability of vibration, so that the two elastic connecting pieces 23 arranged at intervals along the first direction can buffer the magnetic yoke 21 and the magnetic circuit assembly 22 to the greatest extent, reduce noise and weaken damage caused by collision, thereby solving the problems of noise and easy damage of the vibrator assembly 2 caused by collision in the prior art;

[0043] And the coil 31 is connected with the inner wall of the shell 1 through the support 32, improving the stability of the coil 31 and the support 32, ensuring that the support 32 of the coil 31 can be suspended in the magnetic gap 25 formed in the magnetic yoke cavity 24, ensuring that the coil 31 remains stable in the magnetic gap 25 and will not be offset due to the magnetic field of the magnetic circuit assembly 22, so that the magnetic circuit assembly 22 can stably interact with the magnetic field of the coil 31, improving the vibration stability of the vibrator assembly 2.

[0044] In an embodiment, the first magnetic conducting plate 211 is provided with two first protruding portions 214 at both ends along the first direction, two first protruding portions 214 on the same side are arranged along the second direction, the second magnetic conducting plate 212 is provided with two second protruding portions 215 at both ends along the first direction, two second protruding portions 215 on the same side are arranged along the second direction, each elastic connecting piece 23 comprises two connecting arms 231 and two elastic arms 232, two connecting arms 231 are arranged along the second direction and connected with the first protruding portion 214 and the second protruding portion 215 opposite along the third direction respectively, the fixed portion 233 is connected with two connecting arms 231 through two elastic arms 232 respectively, and the first direction, the second direction and the third direction are perpendicular to each other.

[0045] It should be noted that the first direction is the left-right direction in the Figure 2 , the second direction is the front-rear direction in the Figure 2 , and the third direction is the up-down direction in the Figure 2 .

[0046] By arranging the first protruding portion 214 on both sides of the first magnetic conducting plate 211 along the second direction and the second protruding portion 215 on both sides of the second magnetic conducting plate 212 along the second direction, the two connecting arms 231 of the elastic connecting piece 23 can be connected with the first protruding portion 214 and the second protruding portion 215 at both ends along the third direction, which can provide positioning for the installation of the two connecting arms 231, make the installation position of the elastic connecting piece 23 more accurate, increase the connection point position of the elastic connecting piece 23 and the magnetic yoke 21, thereby increasing the connection stability between the elastic connecting piece 23 and the magnetic yoke 21, and avoiding the elastic connecting piece 23 from falling off or shifting during the vibration of the magnetic yoke 21; the two elastic arms 232 prolong the effective deformation length of the elastic connecting piece 23, improve the elastic deformation capacity of the elastic connecting piece 23, and the connection of the two elastic arms 232 forms the fixed portion 233, so that the fixed portion 233 is located at the centroid of the elastic connecting piece 23, so that the elastic arm 232 can deform in a longer path when an external force acts, prolong the buffer stroke and disperse the stress, thereby significantly improving the vibration absorption and rebound performance, further reducing the vibration noise and weakening the damage caused by collision.

[0047] In an embodiment, the elastic connecting piece 23 is arranged along the second direction, so that it has sufficient elastic deformation in the first direction, can fully stretch, compress or bend when the vibrator assembly 2 moves along the first direction, thereby providing flexible support and elastic restoring force, and effectively buffering the impact energy in the vibration process.

[0048] In an embodiment, each elastic arm 232 comprises a first elastic segment 2321, a second elastic segment 2322, a third elastic segment 2323 and a fourth elastic segment 2324 connected in sequence, wherein the first elastic segment 2321 extends from one end of the connecting arm 231 to which it is connected to the other end of the connecting arm 231 along the third direction, the second elastic segment 2322 extends linearly along the second direction to the other connecting arm 231, the third elastic segment 2323 extends linearly along the third direction to one end of the connecting arm 231, and the fourth elastic segment 2324 extends linearly along the second direction to the corresponding connecting arm 231 and is connected to the fixed part 233.

[0049] The extension directions of the first elastic segment 2321, the second elastic segment 2322, the third elastic segment 2323 and the fourth elastic segment 2324 are different, so that the elastic arm 232 extends through multiple bends in the second direction and the third direction, significantly lengthening the effective deformation path of the elastic arm 232 in a limited space, improving its flexibility, so that when the vibrator assembly 2 vibrates in the first direction, the elastic arm 232 can continuously deform on a longer path, thereby improving the overall buffering capacity.

[0050] In an embodiment, the fixed part 233 is a center of symmetry, and the elastic connecting member 23 is centrally symmetric with respect to the center of symmetry.

[0051] It can be understood that the center of symmetry is the centroid of the elastic connecting member 23, and the elastic connecting member 23 is symmetrically arranged, so that the extension path of the elastic arm 232 can maintain symmetry of deformation, so that the elastic arms 232 on both sides can provide the same elastic restoring force, ensuring that the restoring force generated by the elastic arm 232 is used for buffering the magnetic yoke 21 in the first direction, further improving the buffering effect of the elastic connecting member 23, while ensuring that the entire elastic connecting member 23 is balanced in stress during operation, effectively preventing the vibrator assembly 2 from deviating or deviating during movement, and maintaining the stability of the vibration direction.

[0052] Please refer to Figure 2 and Figure 4 In an embodiment, the vibration device 100 further comprises a fixed table 4, and the fixed table 4 is connected to the fixed part 233 and the inner wall of the shell 1, respectively.

[0053] The fixed table 4 limits and protects the elastic connecting member 23, preventing the elastic arm 232 from deforming excessively or breaking during large-amplitude operation; at the same time, the design structure of the fixed table 4 and the fixed part 233 facilitates positioning and welding, improving assembly efficiency and welding reliability. In addition, the fixed table 4 leaves a reasonable gap between the elastic connecting member 23 and the inner wall of the shell 1, forming a controllable vibration space, ensuring that the elastic connecting member 23 deforms fully within the normal working range, while effectively preventing the magnetic yoke 21 from vibrating excessively in the first direction, causing the vibrator assembly 2 to collide with the shell 1, improving the safety of the vibrator assembly 2.

[0054] In an embodiment, the fixed portion 233 protrudes towards the inner wall of the shell 1 on the same side as the fixed portion 233 to form a fixed platform 4 connected to the inner wall of the shell 1 in the first direction.

[0055] The connection between the second ends of the two elastic arms 232 forms a fixed portion 233, which protrudes towards the inner wall of the shell 1 to form a fixed platform 4 connected to the inner wall of the shell 1. The fixed platform 4 formed integrally with the fixed portion 233 is used instead of the independently arranged fixed platform 4, avoiding the assembly and welding steps of the independent stopper, simplifying the structure, reducing the number of parts, and being conducive to reducing manufacturing costs and improving assembly efficiency. Compared with the fixed platform 4 welded later, the fixed platform 4 formed integrally has better forming precision and connection stability, can provide more reliable support, and improve the fatigue resistance of the connection during vibration.

[0056] In another embodiment, the inner wall on each side of the shell 1 in the first direction protrudes towards the fixed portion 233 arranged on the same side as the fixed portion 233 to form a fixed platform 4 connected to the fixed portion 233.

[0057] The fixed platform 4 formed integrally with the shell 1 is used instead of the independently arranged fixed platform 4, avoiding the assembly and welding steps of the independent fixed platform 4, simplifying the structure, reducing the number of parts, and being conducive to reducing manufacturing costs and improving assembly efficiency. Compared with the fixed platform 4 welded later, the fixed platform 4 formed integrally has better forming precision and connection stability, can provide more reliable support, and improve the fatigue resistance of the connection during vibration. Compared with the fixed platform 4 formed integrally on the elastic sheet, the fixed platform 4 formed on the shell 1 has lower requirements for the mold, further reducing costs.

[0058] In an embodiment, the magnetic circuit assembly 22 includes a first magnetic portion 221 and a second magnetic portion 222 arranged opposite to each other in the third direction. The first magnetic portion 221 is fixed to one side of the first magnetic conducting plate 211 facing the second magnetic conducting plate 212, and the second magnetic portion 222 is fixed to one side of the second magnetic conducting plate 212 facing the first magnetic conducting plate 211. The coil 31 is located between the first magnetic portion 221 and the second magnetic portion 222, and the first magnetic portion 221, the coil 31, and the second magnetic portion 222 are arranged spaced apart from each other.

[0059] By arranging the first magnetic portion 221 and the second magnetic portion 222 opposite to each other, and arranging the first magnetic portion 221, the coil 31, and the second magnetic portion 222 spaced apart from each other, a uniform magnetic gap 25 is formed in the magnetic yoke cavity 24, so that the coil 31 can be in a more uniform magnetic field when excited, improving the driving efficiency and the stability of the vibration response, and also reducing the interference of magnetic force deviation on the movement direction of the vibrator assembly 2, improving the working stability of the vibrator assembly 2.

[0060] In an embodiment, the connection plates 213 extend from both sides of the first magnetic conductive plates 211 along the second direction towards the second magnetic conductive plates 212, and each connection plate 213 is connected to the second magnetic conductive plate 212 at an end away from the first magnetic conductive plate 211, and the first direction, the second direction and the third direction are perpendicular to each other.

[0061] The connection plates 213 connect the two originally separated first magnetic conductive plates 211 and the second magnetic conductive plates 212 into one body, so that the entire magnetic yoke 21 forms a stable structure, which can effectively suppress the relative displacement between the magnetic yokes 21 during vibration, and improve the consistency and stability of the magnetic gap 25. At the same time, the connection plates 213 serve as a connecting bridge between the two magnetic yokes 21, which can be used as a positioning reference during assembly, simplifying the requirement for the positioning accuracy of the magnetic yokes 21, and improving the assembly efficiency and consistency.

[0062] In an embodiment, the support 32 includes a support plate 321 supporting the coil 31 and a bending portion 322, and at least two bending portions 322 are arranged at both ends of the support plate 321 along the second direction. The bending portions 322 are fixedly attached to the shell 1, and at least two bending portions 322 on the same side are distributed on both sides of the same side connection plate 213 along the first direction. And / or, one of the end of the connection plate 213 close to the second magnetic conductive plate 212 and the second magnetic conductive plate 212 corresponding to the connection plate 213 is provided with a boss 2131, and the other is provided with a groove 2121 matched with the boss 2131.

[0063] The at least two bending portions 322 at both ends of the support plate 321 are fixedly attached to the shell 1, so that the support 32 is more firmly fixed in the shell 1, and the coil 31 is prevented from shifting during vibration. At the same time, the plurality of bending portions 322 are distributed on both sides of the connection plate 213 along the first direction, which not only ensures the structural symmetry and force balance, but also improves the positioning accuracy of the coil 31 in the magnetic gap 25, and ensures the stability of the electromagnetic coupling effect. The matching structure of the boss 2131 and the groove 2121 between the connection plate 213 and the second magnetic conductive plate 212 can realize quick and accurate positioning during assembly and enhance the mechanical connection strength between the two, while reducing the magnetic circuit deviation caused by assembly tolerance, thereby ensuring the stability and consistency of the magnetic circuit structure.

[0064] In an embodiment, the shell 1 includes an upper shell 12, a middle shell 13 and a lower shell 14 connected in sequence, and the middle shell 13 is arranged in a ring shape, and the bending portion 322 is fixedly attached to the middle shell 13.

[0065] The application further provides an electronic device, which applies the vibration device 100. The specific structure of the vibration device 100 is referred to the above embodiments, and specifically, the electronic device can be a handle, a mobile phone, a tablet, a smart wearable device and the like with a vibration function. Since the electronic device adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0066] The above is only an optional embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation made by using the content of the specification and drawings, or direct / indirect application in other related technical fields within the concept of the application is included in the patent protection scope of the application.

Claims

1. A vibration device, characterized by, The application relates to a loudspeaker, which comprises: a shell, an installation cavity being formed in the shell; a vibrator assembly, which is elastically installed in the installation cavity through two elastic connecting pieces, the vibrator assembly comprising a magnetic yoke and a magnetic circuit assembly, the two elastic connecting pieces being connected to the two sides of the magnetic yoke along a first direction respectively, the elastic connecting piece comprising a connecting arm connected to the magnetic yoke, a fixed part directly or indirectly connected to the shell, and an elastic arm connecting the connecting arm and the fixed part, the magnetic yoke comprising a first magnetic conducting plate and a second magnetic conducting plate arranged in a spaced manner along a third direction perpendicular to the first direction, and a connecting plate connecting the first magnetic conducting plate and the second magnetic conducting plate, the magnetic circuit assembly being located between the first magnetic conducting plate and the second magnetic conducting plate and being fixed to the first magnetic conducting plate and / or the second magnetic conducting plate, the first magnetic conducting plate being provided with a first protruding part at both ends along the first direction, the second magnetic conducting plate being provided with a second protruding part at both ends along the first direction, the first protruding part and the second protruding part being oppositely arranged along the third direction, the two ends of the connecting arm being connected to the first protruding part and the second protruding part arranged on the same side respectively, and one end of the connecting arm being connected to the elastic arm; a stator assembly, which is installed in the installation cavity, the stator assembly comprising a coil and a support, the support being connected to the shell and supporting the coil, the coil being located between the first magnetic conducting plate and the second magnetic conducting plate and being arranged in a spaced manner with the magnetic circuit assembly along the third direction; the coil being capable of causing the vibrator assembly to vibrate relative to the stator assembly along the first direction when being electrified.

2. The vibration apparatus of claim 1, wherein The first magnetic conducting plate is provided with two first protruding parts at both ends along the first direction, the two first protruding parts on the same side being arranged in a spaced manner along a second direction, the second magnetic conducting plate is provided with two second protruding parts at both ends along the first direction, the two second protruding parts on the same side being arranged in a spaced manner along the second direction, each elastic connecting piece comprising two connecting arms and two elastic arms, the two connecting arms being arranged along the second direction and being connected to the first protruding part and the second protruding part opposite along the third direction respectively, the fixed part being connected to the two connecting arms through the two elastic arms, the first direction, the second direction and the third direction being perpendicular to each other.

3. The vibration apparatus of claim 2, wherein Each elastic arm comprises a first elastic section, a second elastic section, a third elastic section and a fourth elastic section connected in sequence, wherein the first elastic section extends from one end of the connecting arm connected thereto along the third direction towards the other end of the connecting arm, the second elastic section extends along the second direction towards the other connecting arm, the third elastic section extends along the third direction towards one end of the connecting arm, and the fourth elastic section extends along the second direction towards the corresponding connecting arm and is connected to the fixed part.

4. The vibration apparatus of claim 1, wherein The fixed part is a center of symmetry, and the elastic connecting pieces are arranged in a central symmetry relative to the center of symmetry.

5. The vibration apparatus of claim 1, wherein The application further comprises a fixing table, which is connected to the fixed part and the inner wall of the shell respectively.

6. The vibration apparatus of claim 1, wherein, in the first direction, the fixed portion protrudes towards the inner wall of the housing on the same side as the fixed portion to form a fixed platform connected with the inner wall of the housing; or, in the first direction, each inner wall on the same side of the housing protrudes towards the fixed portion on the same side as the inner wall to form a fixed platform connected with the fixed portion. The magnetic circuit assembly comprises a first magnetic portion and a second magnetic portion oppositely arranged along the third direction, the first magnetic portion is fixed to one side of the first magnetic conductive plate facing the second magnetic conductive plate, the second magnetic portion is fixed to one side of the second magnetic conductive plate facing the first magnetic conductive plate, the coil is located between the first magnetic portion and the second magnetic portion, and the first magnetic portion, the coil and the second magnetic portion are arranged at intervals.

7. The vibration apparatus of claim 1, wherein 8. The vibration apparatus of any one of claims 1 to 7, wherein, each connection plate is connected with the second magnetic conductive plate at an end away from the first magnetic conductive plate, and the first direction, the second direction and the third direction are perpendicular to each other. The support comprises a support plate supporting the coil and a bending portion, at least two bending portions are arranged at each end of the support plate along the second direction, the bending portions are fixedly attached to the housing, and at least two bending portions on the same side are distributed on both sides of the connection plate on the same side along the first direction; 9. The vibration apparatus of claim 8, wherein and / or, one of the end of the connection plate close to the second magnetic conductive plate and the second magnetic conductive plate corresponding to the connection plate is provided with a boss, and the other is provided with a groove matched with the boss. The electronic device is applied with the vibration apparatus of any one of claims 1 to 9.

10. An electronic device, comprising: ​

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