Abstract: A modular magnetic induction horizontal-swing motor includes an electromagnet module, including a base, a stator arranged on the base, and a stator coil fixedly arranged around the stator; and a horizontal swing module, including a support frame, a first horizontal swing seat, a second horizontal swing seat, a first mover and a second mover, wherein the support frame is fixedly connected to the base, the first horizontal swing seat and the second horizontal swing seat are arranged in the support frame and are able to swing horizontally, linking limit members are arranged on the first horizontal swing seat and the second horizontal swing seat, and elastic pieces are arranged on two sides of the support frame respectively and provide an elastic return force when the first horizontal swing seat and the second horizontal swing seat swing horizontally in a staggered manner.

Abstract: A linear actuator or motor for oscillating a blade is provided. The linear actuator replaces an eccentric drive and yoke, resulting in a linear powered drive to oscillate the blade linearly. This operation facilitates the formation of a smaller and/or lighter hair clipper. The linear actuator uses alternating current to oscillate a permanent against a biasing force produced by a set of springs. The permanent magnet is located opposite a stator with an electromagnetic coil that generates an electromagnetic force to oscillate the permanent magnet.

Abstract: Provided is a bidirectional magnetic levitation acoustic motor device, including a motor housing and a motor shaft, wherein the motor shaft is arranged at an axis of the motor housing, an end cover is arranged at a bottom end of the motor housing, shaft holes are formed in axes of the motor housing and the end cover, and the motor shaft penetrates through the two shaft holes. With regard to the invention, movement transmission is achieved by means of an electromagnetic effect, and mounting of elastic structures such as a torsion bar and the like is no longer needed, so that on one hand, the situation that the service life of a motor is short due to the fact that the elastic structures are prone to damage during usage is avoided, and on the other hand, the motor in a unit volume can transmit torque in a larger value.

Abstract: An electric toothbrush having bristle driven pulsation includes a brush head having a bristle holder and bristle tufts attached to the bristle holder. The bristle tufts and corresponding bristles are disposed at a perpendicular and/or a non-perpendicular angle with respect to a mounting surface of the brush head. The electric toothbrush also includes an electric toothbrush handle removably attached to the brush head. The electric toothbrush handle includes a linear motor configured to drive the bristle holder via a gearing structure coupled to the linear motor and the bristle holder. The linear motor causes the bristle holder to rotate clockwise and counterclockwise at a rotation frequency which exceeds a rotation frequency threshold (e.g., 100 Hz, 120 Hz, etc.). The linear motor also causes the brush head to vibrate in a direction toward and away from a contact surface in synchronization with the rotation of the bristles.

Abstract: The linear moto includes a bracket, two elastic support modules, a driving assembly, and a motion assembly suspended above the driving assembly. The driving assembly is mounted on the bracket and configured to drive the motion assembly to reciprocate in a predetermined direction. The motion assembly has two ends in the predetermined direction, two elastic support modules are configured to connect the two ends to the bracket, respectively. Each of the two elastic support modules includes a plate spring sheet, an adapter assembly, and a first connection member, the plate spring sheet has a first connection end and a second connection end, the first connection end is fixedly connected to the motion assembly, the first connection member extends through and connects to the second connection end and the adapter assembly, the plate spring sheet is fixedly connected to the bracket via the adapter assembly.

Abstract: A power generation element includes a magnetostrictive material having a fixed end in a longitudinal direction, and generates power when force is applied to the magnetostrictive material. The power generation element includes a magnetostrictive portion containing the magnetostrictive material, a magnetic portion containing a magnetic material and having surfaces at least partially fixed to the magnetostrictive portion, a coil for enclosing at least a part of the magnetostrictive material, and a first and second magnetic field generation portions to generate a magnetic field that are fixed to the magnetostrictive portion to sandwich the coil, all of which configuring a magnetic circuit. Out of the first and the second magnetic field generation portions, the magnetic field generated from the first magnetic field generation portion close to the fixed end is larger than that generated from the second magnetic field generation portion.

Abstract: Disclosed are a sound generation device and an electronic apparatus. The sound generation device comprises: a support; a vibration unit; and at least two elastic member. Each of the elastic member comprises: a first elastic assembly having at least one first elastic connector connected to the support and the vibration unit; and a second elastic assembly having at least one second elastic connector connected to the support and the vibration unit. The first elastic assembly and the second elastic assembly are fixed at different positions in a height direction of a voice coil. The voice coil has a first end surface in the height direction. At least a portion of a first projection region of the first elastic assembly projected onto a plane where the first end surface is located is at outside of a second projection region of the second elastic assembly projected onto the first end surface.

Abstract: Disclosed is a galvanometer motor apparatus. The galvanometer motor apparatus includes a housing, a stator assembly, and a rotor assembly, wherein the rotor assembly includes an axle and a magnet that are coaxially arranged, and the stator assembly includes a frame and a single electromagnetic coil wound on the frame; wherein a first through hole configured to allow the magnet to rotatably run through is molded on the frame, the electromagnetic coil is disposed on a side of the first through hole, the electromagnetic coil is excitable to generate a drive magnetic field to magnetize the frame to supply a torque to the magnet, a recess configured to receive the stator assembly is molded in the housing. With such configurations, structure design is optimized, assembling is simpler, and efficiency is higher.

Abstract: An electric toothbrush having bristle driven pulsation includes a brush head having a bristle holder and bristle tufts attached to the bristle holder. The bristle tufts and corresponding bristles are disposed at a perpendicular and/or a non-perpendicular angle with respect to a mounting surface of the brush head. The electric toothbrush also includes an electric toothbrush handle removably attached to the brush head. The electric toothbrush handle includes a linear motor configured to drive the bristle holder via a gearing structure coupled to the linear motor and the bristle holder. The linear motor causes the bristle holder to rotate clockwise and counterclockwise at a rotation frequency which exceeds a rotation frequency threshold (e.g., 100 Hz, 120 Hz, etc.). The linear motor also causes the brush head to vibrate in a direction toward and away from a contact surface in synchronization with the rotation of the bristles.

Abstract: An actuator is introduced that utilizes the forces that result from placing a current carrying coil in a magnetic field to rotate a connected object about at least one axis. In some embodiments, the introduced coil actuator includes a coil of conductor coupled to an arm or other type of structural element that extends radially from an axis of rotation. The introduced coil actuator can be utilized to provide motion control in a variety of different applications such as gimbal mechanisms. In some embodiments, the introduced coil actuator can be implemented in a gimbal mechanism for adjusting an orientation of a device such as a camera relative to a connected platform such as the body of an aerial vehicle.

Abstract: This vibration actuator has a movable body having a coil, a fixed body having magnets, and a shaft part that rotatably supports the movable body, wherein the movable body reciprocally and rotationally vibrates around the shaft part with respect to the fixed body through the interaction of the coil and the magnets. The magnets are arranged in a direction perpendicular to the axial direction of the shaft part and each have two magnetic poles that face the movable body in the coil axial direction of the coil, the shaft part supports the movable body at a position shifted from the center position of the movable body in a direction perpendicular to the axial direction of the shaft part, and the coil axis of the coil of the movable body is located at a position facing a switching position of the magnetic pole of the magnet.

Abstract: An actuating mechanism includes a main body, an electromagnetic device fixed to the main body, and a swinging rod swingably connected to the main body. A position of connection between the swinging rod and the main body is opposite to an iron core of the electromagnetic device, and an upper end of the swinging rod is opposite to and spaced apart from the electromagnetic device. A permanent magnet is disposed on the upper end of the swinging rod, and a magnetic pole direction of the permanent magnet and a magnetic pole direction of the electromagnetic device cross each other. Since the permanent magnet on the swinging rod is opposite to and spaced apart from the electromagnetic device, the swinging rod is not in contact with the electromagnetic device during working process. This avoids knocking of the swinging rod on other components, and therefore prevents noise, reduces wear.

Abstract: A magnetic momentum transfer generator utilizes three or more magnets aligned with each other. A first control magnet is positioned outside a coil. A second magnet is positioned within the windings of the coil and a third magnet is positioned on the opposite side of the coil opposite the control magnet. When the control magnet rotated or moved, mutual magnetic flux lines generated by all three magnets and passing through the coil winding are aligned at right angles to the coil, thereby inducing a maximum voltage at the terminals. This generator is particularly useful for short burst radio micro-transmitters that can be used for battery-less and wireless switching applications.

Abstract: An electromagnetic device for converting input mechanical energy into output electrical energy, including a movable element that is able to make a vibratory mechanical movement, a vibration source configured to actuate the vibratory mechanical movement of the movable element, a coil, a magnetic circuit passing through the coil, the coil being configured to generate the output electrical energy when the movable element is making its vibratory mechanical movement, a permanent magnet arranged in the magnetic circuit and able to generate a magnetic flux, referred to as the total magnetic flux (Fm_T), in the magnetic circuit.

Abstract: The present disclosure relates generally to oral health products, such as electric toothbrushes. In one example, the electric toothbrush includes a housing, an output shaft positioned within and extending out of the housing, a magnetic assembly positioned within the housing and configured to impart an oscillation motion to the output shaft, and a spring positioned within the housing. The spring includes a first end non-rotatably coupled to the housing and a second end non-rotatably coupled to the output shaft, such that the spring twists as the magnetic assembly oscillates the output shaft to amplify the oscillation motion of the output shaft generated by the magnetic assembly.

Abstract: According to an aspect there is provided a motor (1) for a personal care device (10). The motor (1) comprises: a stator (2) comprising a stator surface; a rotor (3) comprising a rotor surface disposed opposite the stator surface; and a spacer (4) projecting between the stator surface and the rotor surface so as to define a minimum airgap between the stator (2) and the rotor (3). The spacer (4) is disposed on or at one of the rotor surface and the stator surface, and has a contact surface configured to engage with the other one of the rotor surface and the stator surface.

Abstract: A vibration motor having an insulating housing, a bidirectional coil and a magnetic ring is provided. The insulating housing is of cylindrical shape and at least three position-limiting ribs are protruded from an internal surface thereof. Each position-limiting rib is extended parallel to a central axial line of the insulating housing. The insulating housing has a pair of end plates on two ends thereof. The end plates are made of insulating material. The bidirectional coil is accommodated in the insulating housing and spaced apart from the internal surface of the insulating housing. The magnetic ring is movably accommodated in the insulating housing, and the magnetic ring is arranged coaxially with the insulating housing to surround the bidirectional coil. The position-limiting ribs are disposed adjacent to the magnetic ring and surround an outer edge of the magnetic ring.

Abstract: A personal hygiene device has a handle and a treatment head pivotably connected with the handle. Applying a treatment force against the treatment head causes a pivoting of the treatment head relative to the handle. A sensor, such as, e.g., a Hall sensor, fixedly secured with respect to one of the handle and the treatment head, measures a measurement variable. A sensor cooperation unit defines or influences the measurement variable in dependence on the relative position of the sensor and the sensor cooperation unit, such e.g., as a sensor permanent magnet, fixedly secured relative to one of the handle and the treatment head. A spring unit defines a rest position of the treatment head when no treatment force is applied. The spring unit has a first spring constant in the treatment direction and a second spring constant in a lateral direction, the second spring constant being at least about two times higher than the first spring constant.

Abstract: A drive train assembly (200) for a personal care device (10), comprising a torsion spring (210) suspended between a first end mount (220) and a second end mount (230), the torsion spring comprising a first end mounted to the first end mount and a second end mounted to the second end mount, wherein the first and second ends of the torsion spring each comprises a cross flexure spring hinge (250, 260).

Abstract: Provided is an energy harvester and an engine monitoring system. An engine monitoring system using an energy harvester includes at least one or more self-power generation wireless sensor nodes for generating electric energy using the energy harvester and monitoring an engine; and a management server that receives and manages sensing information received from the self-power generation wireless sensor nodes.

Abstract: A lens barrel includes a linear actuator that is disposed more to the outer peripheral side than the outer peripheral surface of a focus lens unit, and has two permanent magnets, a yoke unit, and a coil; and the focus lens unit that holds a focus lens and is driven back and forth along the optical axis direction. The permanent magnets are disposed substantially in parallel and spaced apart, with the same poles facing each other. The yoke unit includes a center yoke portion, a back yoke portion, and a yoke that magnetically couples the center yoke portion and the back yoke portion. The coil is wound around the center yoke portion, and its center is offset from the center of the two permanent magnets to the outer peripheral side with respect to the optical axis center of the focus lens.

Abstract: A linear vibration motor is provided, comprising a housing, a spring part, a vibrator and a stator, the housing having a chamber, the stator, the vibrator and the spring part being provided in the chamber, the vibrator comprising a counterweight part and a magnet connected together, the stator comprising a pole core and a coil, the pole core being connected to the housing, the coil being wound around the pole core, the housing being configured to be magnetically conductive, the vibrator being suspended relative to the stator by the spring part, the housing comprising a top part and an opposed bottom part, and the vibrator being configured to vibrate along a connecting line between the top part and the bottom part.

Abstract: A method for making a flexure bearing for an oscillator with an inertial element oscillating in a plane supported by flexible strips fixed to a stationary support returning it to a rest position includes: forming the bearing with basic strips in superposed levels, each having an aspect ratio of less than 10; breaking down the number of basic levels into a plurality of sub-units, each including one or two strips joining a basic support and a basic inertial element, which are made by etching substrates; assembling the sub-units by joining their basic inertial elements; and fixing the basic supports to the support, directly or via translational tables along one or two in-plane translational degrees of freedom, of lower translational stiffness than that of the sub-unit.

Abstract: A vibration reduction assembly (200) including: (i) a shaft (240); (ii) a first component (210) positioned along the shaft and having a first face (212) comprising a plurality of magnets (230) positioned to alternate between a magnet having a first magnetic pole (232) at the first face and a magnet having the opposite magnetic pole (234) at the first face; and (iii) a second component (220) positioned along the shaft and having a first face (222) comprising a plurality of ferromagnetic extensions (260), wherein the first face of the first component is separated from the first face of the second component by a gap (280) having an adjustable first distance, and wherein a pair of the plurality of magnets interact via magnetic force with a respective one of the ferromagnetic extensions to reduce vibrations from a drivetrain to a housing portion of the personal care device.

Abstract: A conduction receiver utilizing sound transmission through a solid medium includes an outer casing, a vibration reed, a magnet, a washer, a coil, and a lid. The lid covers surfaces of the outer casing to form a sealed first receiving space. The vibration reed, the magnet, the washer, and the coil are all arranged in the first receiving space. A peripheral surface of the vibration reed is coupled to the outer casing. The magnet is arranged at a side of the vibration reed away from a bottom of the outer casing. The washer is arranged at a side of the magnet away from the vibration reed. A first end of the coil is fixed to an inner surface of the lid, and a second end of the coil extends into the first receiving space and is coiled around the magnet and the washer. An electronic device is also provided.

Abstract: The present disclosure provides a method for detecting a bandwidth of a linear vibration motor, including a linear vibration motor which comprises a housing and a motor vibrator. The method includes the following steps: step S1: setting a target displacement level of the linear vibration motor; step S2: measuring a displacement frequency response curve of the motor vibrator with reference to the target displacement level; step S3: comparing the displacement frequency response curve obtained in step S2 with a preset standard target displacement frequency response curve, determining whether the displacement frequency response curve is qualified, and if it is qualified, entering step S4; step S4: measuring a bandwidth of the linear vibration motor.

Abstract: A display device includes a cover part, a driving unit for transmitting an external force to the human body through the cover part, and a display unit that is provided at a position of the cover part through which the external force is transmitted to the human body, and indicates a display in accordance with the external force transmitted from the driving unit.

Abstract: Portable, electrically driven, handheld sonic personal skin/hair care device includes a housing and a drive assembly to which is coupled a treatment member. The treatment member may include active ingredients incorporated during manufacturing that safely resist and inhibit the growth of mold, mildew and bacteria. The drive assembly includes a stator assembly, armature assembly, mounting member attached to the housing, elongated pivot arm having a first end directly coupled to the armature assembly and a second end directly coupled to the mounting member, and mounting arm having first and second ends, the first end being directly coupled to the armature assembly and the second end being directly coupled to the treatment member such that the stator, when energized, causes oscillation of the armature in an arcuate manner about a pivot point located at the mounting member in turn causing the treatment member to oscillate relative to the housing.

Abstract: The present disclosure relates to the technical field of electric toothbrushes, and in particular to an electric toothbrush motor. The electric toothbrush motor comprises a mounting shell, an end cover, conductors, a rotor assembly and a stator assembly, wherein the rotor assembly and the stator assembly are fixedly arranged in an accommodating cavity of the mounting shell through the end cover. The first magnetic steel sheets are added to the rotor assembly, the second magnetic steel sheets are added to the stator assembly, each first magnetic steel sheet is placed at the middle part of an interval between the two second magnetic steel sheets, and by the above manner, the relative positions of the rotor assembly and the stator assembly are fixed, so that the response speed is increased, the vibration frequency is high, and the service life is prolonged.

Abstract: An actuator includes a beam that supports an object to be driven, and a driving source that receives a driving signal and causes the object to rotate around a predetermined axis. The driving signal includes a sawtooth driving waveform, and a differential waveform of a falling section of the sawtooth driving waveform is formed of half sign waves having a wavelength that is a non-integral multiple of a ringing wavelength.

Abstract: A power tool (1; 90) includes a motor (17) having a stator (18) and a rotor (19). The stator (18) includes front and rear insulators (21, 22) respectively disposed forward and rearward of a stator core (20) in an axial direction thereof. At least six coils (23) are respectively wound on the stator (18) such that the coils (23) are wound through the front and rear insulators (21, 22). Winding wires (23a) respectively electrically connect circumferentially-adjacent pairs of the coils (23). A short circuiting device (25) short circuits respective pairs of windings (23a) that are located diagonally or diametrically across from one another.

Abstract: This disclosure relates to devices for two-dimensional deflection of a laser beam, which include a substrate having a substrate opening, a spring membrane provided on the substrate having spring arms extending over the substrate opening, and a middle section arranged in the substrate opening and supported by the spring arms. The middle section is mounted so it is two-dimensionally tiltable and is axially displaceable in both directions of the spring membrane middle axis. The device includes a mirror fastened on the middle section of the spring membrane and a magnetic or electrostatic drive for tilting the mirror against the restoring force of the spring arms. One or more of a component coupled to the mirror and an end stop unit are configured to limit axial deflection of the middle section to a distance that is within a range of axial deflection of the middle section during the drive-related tilting of the mirror.

Abstract: A power generator 100 includes a case 110, a coil 121 fixedly provided in the case 110, magnets 151a, 151b provided in the case 110 so that the magnets 151a, 151b can be relatively rotated and moved with respect to the coil 121 around a predetermined rotational axis 140, an operating portion 130 which is provided so that the operating portion 130 can be pivotally moved with respect to the case 110 and pivotally operated to apply the external force and an elastic member (a torsion spring) 160 for storing the external force applied through the operating portion 130 as elastic energy and releasing the stored elastic energy to relatively rotate and move the magnets 151a, 151b with respect to the coil 121.

Abstract: A method obtains information for adjusting an adjustable component of a combustion engine drive system of a gardening and/or forestry apparatus. The method includes the steps of: providing a characteristic parameter using a mobile provision device, wherein the characteristic parameter describes a characteristic of an environment of the gardening and/or forestry apparatus; and obtaining the information for adjusting the adjustable component as a function of the provided characteristic parameter.

Abstract: Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.

Abstract: An actuator is introduced that utilizes the forces that result from placing a current carrying coil in a magnetic field to rotate a connected object about at least one axis. In some embodiments, the introduced coil actuator includes a coil of conductor coupled to an arm or other type of structural element that extends radially from an axis of rotation. The introduced coil actuator can be utilized to provide motion control in a variety of different applications such as gimbal mechanisms. In some embodiments, the introduced coil actuator can be implemented in a gimbal mechanism for adjusting an orientation of a device such as a camera relative to a connected platform such as the body of an aerial vehicle.

Abstract: A handheld, therapeutic cleansing system includes a skin or body brush with a rotating bristle head and an associated water spray. The body brush includes a housing, a brush assembly connected to the housing, and a drive assembly for rotating the brush assembly. The brush assembly includes a plurality of bristles and is rotated by the drive assembly. The drive assembly may include a motor having a drive shaft, a worm gear coupled to the drive shaft of the motor and rotatable therewith, and at least one gear engaged with the worm gear and rotatable therewith. During operation, the at least one gear couples to the brush assembly and rotates the brush assembly as the worm gear rotates. Water spray is provided through a connection with a water supply and spray nozzles adjacent to the bristles.

Abstract: The present invention provides a receiver assembly. The receiver assembly comprises a receiver housing comprising a first housing part and a second housing part. The receiver housing defines an inner space, and the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration. The receiver assembly further comprises an armature extending in a first direction in the inner space, and a diaphragm operationally attached to the armature via a drive pin extending in a second direction, where the first and second directions are different. The drive pin and the armature are formed in one part. A circumferential edge part of the diaphragm is arranged in a joint between the first housing part and the second housing part in the closed configuration.

Abstract: A receiver-in-canal (RIC) assembly for positioning in or at an ear canal of a user. The RIC assembly includes a housing having an opening between an exterior space outside the housing and an internal space inside the housing, and a cable connection located in the housing and facilitating connection of a cable to the RIC assembly. Furthermore, the RIC assembly includes a first diaphragm extending in a first plane in the housing, and a first motor electrically connected to the cable connection and operatively connected to the first diaphragm. The cable connection is located relative to the first diaphragm such that at least a part of it can be projected onto a movable part of the first diaphragm in a direction perpendicular to the first plane and where the cable connection means is located in continuation of the first motor in a plane parallel to the first plane.

Abstract: An energy collecting device is disclosed. For example, the energy collecting device comprises a plate layer having a plurality of perforations for receiving a plurality of molecules, a molecular energy collecting layer, coupled to the plate layer, having an impacting structure for receiving the plurality of molecules, and a substrate layer, coupled to the molecular energy collecting layer, having a conductor wire coil for collecting electrons that are generated when the plurality of molecules impacts the impacting structure.

Abstract: A vibration device, including a housing having accommodating space, a vibrator, a stator and an elastic member, the elastic member is configured to suspend the vibrator in the accommodating space; the vibrator, the stator and the elastic member are accommodated in the housing, the elastic member includes two elastic plate components disposed at two opposite sides of the vibrator, each elastic plate component includes at least two V-shaped elastic plates parallelly arranged perpendicular to vibrating direction, each elastic plate component includes a first fixing portion fixedly connected with the housing, a second fixing portion fixedly connected with the vibrator, and a V-shaped elastic arm connecting the first fixing portion with the second fixing portion, the first and second fixing portions are opposite to and spaced from each other to form an opening end, and the opening ends of two V-shaped elastic plates faces away from each other.

Abstract: A mechanical isotropic harmonic oscillator including a two rotational degrees of freedom linkage supporting an orbiting mass with respect to a fixed base with at least one spring element having isotropic and linear restoring force properties, such that a high degree of spring stiffness and reduced mass isotropy provides for reduced sensitivity to linear and angular accelerations.

Abstract: A micromechanical component includes an adjustable part, a mounting, at least one bending actuator, and a permanent magnet. The part is positioned on the mounting so as to be adjustable relative to the mounting about a first rotation axis and about a second rotation axis inclined relative to the first axis. The actuator includes at least one movable subregion. Movement of the subregion results in a restoring force that moves the part about the first axis. The part is connected indirectly to the magnet to be adjustable about the second axis of rotation via a magnetic field built up by the magnet together with a yoke device of the component or an external yoke. A micromirror device includes the micromechanical component. A method for adjusting the part includes adjusting the part simultaneously about the first and the second axes.

Abstract: A vibrating motor and an electronic device are disclosed. The vibrating motor comprises a housing formed by an upper housing and a lower housing. A slider portion and a stator portion are accommodated in a cavity enclosed by the housing. The slider portion comprises magnets, spring sheets and a mass block. The mass block has accommodating grooves matching the external contour of the magnets, and the magnets are accommodated in the accommodating grooves. The mass block is connected to the upper housing via the spring sheets, and is suspended inside the housing. The stator portion comprises coils and a basin frame that is made of a magnetic material The basin frame is fixed on the lower housing, and has accommodating structures matching the external contour of the coils. The coils are embedded in the accommodating structures of the basin frame.

Abstract: A micro-device comprising: a substrate, a stationary element rigidly connected to the substrate, a first mobile element suspended from the stationary element by first retention elements and configured to move with respect to the stationary element, a second mobile element suspended from the first mobile element by second retention elements and configured to move with respect to the first mobile element and the stationary element, a first cavity, at least some of the walls of which are formed by the stationary element and in which the first mobile element is encapsulated, a second cavity positioned in the first cavity, at least some of the walls of which are formed by the first mobile element, in which the second mobile element is encapsulated and which is insulated from the first cavity.

Abstract: The present disclosure provides a linear vibration motor, including a housing having accommodating space, a vibrating unit and a stator unit accommodated in the housing, and an elastic member suspending the vibrating unit in the housing, the elastic member comprises a first elastic arm and a second elastic arm which are arranged at two ends of the vibrating unit, and a connecting arm connecting the first elastic arm with a second elastic arm as a whole. The linear vibration motor provided by the present disclosure effectively improves support strength of the elastic member in Z axis direction, and the vibrating unit will not offset in Y axis direction during vibrating. The elastic member is integrated as a whole, during assembling, only one elastic member is necessary, which is easy to assemble, and the positioning is accurate, thereby further improving vibration stability of the linear vibration motor.

Abstract: Provided is a linear vibration motor, including a housing having accommodating space, a vibrating unit and a stator unit accommodated in the housing, and an elastic member suspending the vibrating unit in the housing, the elastic member includes a first elastic portion and a second elastic portion which are arranged at two ends of the vibrating unit, and a connecting member connecting the first elastic portion and the second elastic portion as an integrated structure, both the first elastic portion and the second elastic portion includes two elastic arms which are arranged by crossing with each other. The linear vibration motor provided by the present disclosure effectively improves support strength of the elastic member in Z axis direction, and the vibrating unit will not offset in Y axis direction during vibrating. The elastic member is integrated as a whole, which is easy to assemble, thereby further improving vibration stability.

Abstract: A linear vibration motor includes a vibration unit including a first side wall and a second side wall; a housing with an accommodation space for accommodating the vibration unit; a stator unit accommodated in the accommodation space; an elastic piece suspending the vibration unit in the accommodation space. The elastic piece includes a first elastic member and a second elastic member, each of the first and second elastic members including a first spring arm and a second spring arm overlapped across each other. Both the first elastic member and the second elastic member have a connection piece abutting against the vibration unit.

Abstract: A timepiece resonator mechanism includes a structure and an inertial element oscillating around an axis and subjected to restoring forces exerted by a plurality of elastic blades, each fixed directly or indirectly to the structure at a first end and fixed directly or indirectly to an inertial element at a second end. The elastic blade extends in a perpendicular plane to the pivot axis and is deformable substantially in this plane, where this resonator mechanism includes an axial stop including at least a lower axial stop and/or an upper axial stop, and the axial stop is arranged for the protection of the blade resonator mechanism against axial shocks in the direction of the axis.

Abstract: A linear vibration generating device, which includes a stator fixed on a bracket and having a center yoke concentrically fixed in an inner space of coil winding units and at least one blade extending from the center yoke in a direction perpendicular to the concentric axis, and a vibrator having a magnet surrounding outer circumferences of the coil winding units, and an elastic body disposed between the stator and the vibrator. The blade has at least one passage through which a coil wire for electrically connecting the coil winding units passes.