Abstract: A wear indicator is provided, which is suitable for use with a workpiece, such as a replaceable brush head. In use, the wear indicator can provide an indication to the user recommending that the workpiece be replaced.

Abstract: Methods and apparatuses are disclosed that allow an electronic device to autonomously adapt one or more user alerts of the electronic device. For example, some embodiments may include a method for operating a haptic device including driving a haptic device using a control signal, measuring a frequency related to the operation of the haptic device and comparing the measured frequency with a target frequency. A control signal is adjusted based on the comparison to drive the haptic device to the target frequency.

Abstract: An electronic device contains electrical components. An electrical component is mounted to an electronic device housing using mounting structures. The mounting structures include a flexible printed circuit jumper having opposing ends with metal contact pads. Metal traces in the flexible printed circuit jumper form contact traces within openings in a solder mask layer. Solder in the openings may be used to connect the metal contact pads to the contact traces. A metal bracket may be screwed into the electronic device housing to mount the electrical component to the electronic device housing. The metal bracket may press the metal contact pads on one end of the jumper against mating contact terminals on the electrical component and may press the metal contacts on the other end of the jumper against mating contact pads on an additional printed circuit.

Abstract: The present invention comprises a new topology of a balanced variable reluctance transducer where magnets are moved to a lateral position relative to the dynamic flux circuit. This makes the whole transducerFIG.considerably smaller and the air gaps become fully visible from the outside.

Abstract: A flat motor has a standard cylindrical bearing and the structure for fastening the bearing by sufficient strength. The flat motor has a rotor frame that is rotatably supported by a bearing through which the shaft passes, and the frame has: flat portion which is formed by a flat plate and which has central hole; outer cylindrical portion which is formed in a cylindrical shape on the side of central hole of flat portion by bending the flat plate and lengthening in an axial direction of the shaft; and inner cylindrical portion to which bearing is fastened, and which is formed in a cylindrical shape on the inner circumstance side of outer cylindrical portion by bending the flat plate at the end opposite to the end of flat portion on the inside of rotor frame and lengthening in a direction contrary to the direction in which outer cylindrical portion lengthens.

Abstract: A thermoacoustic device array includes a substrate and a plurality of thermoacoustic device units located on a surface of the substrate. The substrate defines a number of recesses on the surface, and the recesses are spaced from and parallel with each other. Each thermoacoustic device unit includes a sound wave generator, a first electrode and a second electrode. The first electrode and the second electrode are spaced from each other and electrically connected to the sound wave generator. The sound wave generator is located on the surface and suspended over the recesses. At least one of the recesses is located between the first electrode and the second electrode, and one portion of the sound wave generator that is between the first electrode and the second electrode is suspended over the at least one of the recesses.

Abstract: Embodiments are provided for configurations of a loudspeaker and assembly of the loudspeaker. The loudspeaker configuration may include a circumferential spacer element having a first surface and a second surface. The first surface may be attached to an outer rim of a first suspension element. An inner rim of the first suspension element may be attached to an outer rim of a diaphragm. A central portion of the diaphragm may be coupled to a voice coil. The second surface may be attached to an outer rim of a second suspension element. An inner rim of the second suspension element may be coupled to a lower surface of the diaphragm. The circumferential spacer element has a structural shape configured to be coupled to a loudspeaker frame such that the voice coil may be suspended at least partially within a magnetic gap of a magnetic structure of the loudspeaker.

Abstract: A vibration motor includes a rotor including a winding coil, a first substrate having a circuit pattern formed on a surface thereof and electrically connected to the winding coil, and a holder coupled to the first substrate by injection molding; and a shaft including the rotor rotatably coupled thereto and forming a rotational axis of the rotor. The circuit pattern includes a sealing pattern formed along an outline of the holder.

Abstract: A linear vibrator, including: a fixing part providing an inner space having a predetermined size; at least one magnet disposed in the inner space of the fixing part to generate a magnetic force; a vibration part including a coil disposed to face the magnet to generate electromagnetic force by interacting with the magnet, and a mass body being vibrated; an elastic member coupled to the fixing part and the vibration part to provide an elastic force; and a substrate coupled to the vibration part and disposed to surround at least a portion of an outer circumferential surface of the magnet so as to prevent the substrate from contacting the magnet when the vibration part is vibrated.

Abstract: It is possible to provide a vibrator configured so as to prevent the leakage of an adhesive out from between a frame and a diaphragm member and a portable information terminal having the vibrator. The vibrator includes: frame 11; diaphragm member 12 vibratably bonded to frame 11; and adhesive 21 used to bond the frame to the diaphragm member. To store adhesive 21, the vibrator further includes gap 22 which is formed between surfaces of frame 11 and diaphragm member 12 facing each other at bonded part 20 where frame 11 is bonded to diaphragm member 12 with adhesive 21, and the gap being used.

Abstract: Disclosed herein is a motor structure with reduced rotation resistance of a bearing. The motor structure according to the preferred embodiment of the present invention includes: a fixing body, a shaft fixed to the fixing body, a bearing rotatably fitted on the shaft, a rotating body fixed to an outer side of the bearing and rotated by electromagnetic force, a case fixed to the fixing body and having the shaft, the bearing, and the rotating body accommodated in an inner space thereof, and a washer fixed to a top inside of the case so as to be interposed between the top inside of the case and a top surface of the bearing and contacting a part of the top area of the bearing.

Abstract: A linear vibration generator is disclosed. The linear vibration generator in accordance with an embodiment of the present invention includes a stationary part, which has a polygonal-prism-shaped coil and in which the polygonal-prism-shaped coil induces a magnetic field by having an electric current supplied, a vibrating part, which has a polygonal-prism-shaped magnet and in which a portion of the polygonal-prism-shaped magnet is inserted into the coil, an elastic member, which is coupled to the stationary part and elastically supports the vibrating part such that the vibrating part can move linearly, and a lubricating band, which is formed on an outer circumferential surface of the magnet.

Abstract: A vibration imparting device for a concrete finishing tool utilizing a housing having a chamber surrounded by an inner surface of the housing. A vibrator and a battery are placed within the chamber. The vibrator includes a resilient collar to separate the vibrator from the housing inner surface. First and second adaptors are employed for the housing to be placed between the handle and the terminus of a concrete finishing tool.

Abstract: A vibration suppressor system includes an annular electric motor system which independently controls rotation of at least two masses about the axis of rotation to reduce in-plane vibration of the rotating system. A method of reducing vibrations in a rotary-wing aircraft includes independently controlling a relative angular position of a multiple of independently rotatable masses to reduce vibrations of a main rotor system.

Abstract: Provided is an rotational vibration exciter, and more particularly to an rotational vibration exciter which can accurately generate angular vibration of a printed circuit board including a moving coil for rotational excitation and angular vibration of a rotational shaft integrated with the printed circuit board including the moving coil by replacing a conventional cable as an external current supply line with a vertical flexible PCB.

Abstract: Disclosed herein is a linear vibration motor including: a stator part including a magnet; a vibrator part including a coil disposed to face the magnet; and an elastic member connecting the stator part and the vibrator part to each other, wherein the elastic member includes bending parts formed in connection parts thereof connected to the stator part and the vibration part in a vibration direction of the vibrator part.

Abstract: With this patent design, I am challenging one of the foundations of modern engineering and physics, specifically a clause in the Conservation of Linear Momentum, which basically states that no object can gain linear momentum unless it pushes off of another object. This clause stems from Newton's Third Law of Motion, and is self evident for a point mass. However, I believe it to be impossible to account for all the infinite possible variations of propulsion machines that happen to have some dimension and real world properties. I think the people that drafted it, simply treated the change of momentum as a summation of forces on a point mass, and avoided the complexities that come with dimension and real bodies. This patent design will be a counter example for the aforementioned clause. It will open up the world up to new possibilities.

Abstract: A vibration motor assembly includes a vibration motor, an end cap having electrical contacts configured for supplying electrical power to the vibration motor, the end cap having a first connecting structure connecting the end cap to the vibration motor, and a capsule connected to the end cap to define a cavity. The vibration motor further has a shaft, and an eccentric mass is connected to the shaft. The vibration motor is configured to use electrical power to rotate the shaft and the eccentric mass to create a vibration effect. The end cap further has a second connecting structure connecting the capsule to the end cap. The vibration motor and eccentric mass are enclosed by the so-connected end cap and capsule, so as to enable the vibration motor assembly to withstand fabrication conditions.

Abstract: A motor including a rotor and a stator that supports and rotates the rotor is disclosed. In accordance with an embodiment of the present invention, the motor includes a magnetic member, which is installed in the rotor such that the magnetic member faces the stator, and a stator magnetic body, which is a part of the stator and has a part corresponding to the magnetic member formed asymmetrically therein. In this way, the motor can prevent a whirling effect by installing the magnetic member, which forms a preload, even the motor is thinner.

Abstract: Disclosed is a horizontal vibration motor, the motor including a stator having a coil block secured to a bottom plate of a case, a vibrator having magnets placed above the coil block and a weight holding the magnets, a first elastic member having a first elastic plate secured to portion of the case corresponding to a first corner of the weight, a second elastic plate bent inwards from the first elastic plate, and a third elastic plate bent outwards from the second elastic plate and secured to portion around a second corner, and a second elastic member having a fourth elastic plate secured to portion of the bottom plate corresponding to a third corner, a fifth elastic plate bent inwards from the fourth elastic plate, and a sixth elastic plate bent outwards from the fifth elastic plate and secured to a fourth corner.

Abstract: The invention provides an electric toothbrush capable of changing a resonant frequency and vibration amplitude of an eccentric shaft. An electric toothbrush of the present invention includes a motor, an eccentric shaft with one end fixed to a rotation shaft of the motor, and a stemserving as a vibration transmitting component having a bearing for supporting the other end of the eccentric shaft for transmitting vibration generated in accordance with rotation of the eccentric shaft to a brush portion. In the electric toothbrush, the eccentric shaft is formed so that a gravity center position is movable at least in one direction among a direction in which a distance to a shaft center is changed and an axial direction.

Abstract: Disclosed herein is a linear vibration motor. The motor includes a stator and a vibrator. The stator includes a magnet. The vibrator includes a coil facing the magnet. A weight is coupled to the coil. A PCB is connected to the coil and the stator. An elastic member is coupled to stator and the coil. A damper is provided on the weight at a position facing the elastic member. The damper may be provided between the elastic member and the weight or between the elastic member and the inner surface of a casing. The damper can mitigate metallic high frequency noise attributable to friction between the elastic member and the weight or between the elastic member and the casing. Furthermore, the spatial utilization is increased, thereby enhancing the degree of freedom in designing the linear vibration motor.

Abstract: There is provided a vibration motor including: a housing having one open surface; a permanent magnet disposed in an internal space of the housing and interacting with a coil to generate electromagnetic force; an elastic member formed in the housing; a mass member coupled to the elastic member to perform resonant movement through the electromagnetic force; a cover covering the one open surface of the housing; and an extension part extended from the one open surface of the housing in a height direction thereof and compressed with the cover to closely attach the housing and the cover to each other.

Abstract: The instant development relates to utilizing the sonic motion generated by a speaker to move objects in various directions in response to the variation in the frequency and amplitude of the sonic vibrations. This can be used to move objects in a linear and/or rotating manner.

Abstract: Disclosed herein is a linear vibration motor including: a stator part including a magnetic force part and a casing receiving the magnetic force part therein; and a vibrator part including a coil facing the magnetic force part to thereby generate electromagnetic force and a printed circuit board having one end coupled to the stator part and the other end coupled to the coil, wherein the vibrator part moves linearly along a longitudinal outer peripheral surface of the casing receiving the magnetic force part therein.

Abstract: Disclosed is a linear vibrator including a fixing part providing an inner space of a predetermined size, at least one magnet disposed in the inner space of the fixing part to generate a magnetic force, a vibration part including a coil disposed to face the magnet to generate electromagnetic force by interacting with the magnet and a vibrating mass body, an elastic member coupled to the fixing part and the vibration part to provide an elastic force, and a substrate coupled to the vibration part and including a through hole through which the magnet passes to prevent the substrate from contacting the magnet when the vibration part is vibrated.

Abstract: Disclosed herein is a vibrotactile device intuitively providing information by inducing a tactile sense to a user, and a method using the same. The device according to an embodiment includes a vibrating contact panel contacting with a user's hand; a plurality of vibratory modules that are attached to the lower part of the vibrating contact panel and vibrate with different intensities according to the amount of supplied power; and a plurality of vibration isolating links that are coupled, respectively, to an end of each of the modules to support the modules and to isolate the vibration from the modules.

Abstract: A flat type vibration motor realizing strong fastening of a rotor frame and an eccentric weight without welding, that is, a flat type vibration motor provided with a cover case having a tubular part with an opening closed by a stator structure and supporting one end of a shaft and with a rotor frame supported to be able to rotate via a slide bearing through which the shaft runs and having an axial direction field-type rotary magnet and an eccentric weight, wherein the rotor frame has a disk part having a burring part into which a slide bearing is fitted and at least one rivet hole, while the eccentric weight has a covering part superposed over the disk part at the side opposite to the stator structure, at least one rivet which is inserted from the covering part through the rivet hole and have heads which are crushed at the stator structure side of the disk part, and an eave-shaped taper part hanging down from the covering part over the outer circumferential edge of the disk part to the stator structure side.

Abstract: A linear actuator includes a stationary part, a movable part moveably supported by the stationary part, and at least one elastic member disposed between the movable part and the stationary part. The stationary part includes a stator core with a pair of teeth extending inwardly there from, and a winding wound on each of the teeth. The movable part disposed between the teeth includes two pairs of permanent magnetic poles respectively facing the teeth and an output shaft projecting in a first direction. When the windings are electrified, the stationary part generates a magnetic field which interacts with the permanent magnetic poles to reciprocate the movable part relative to the stationary part in a second direction perpendicular to the first direction.

Abstract: Disclosed is a linear vibrator, the linear vibrator including: a stator including a circuit substrate formed at a bottom surface with a connection terminal and a coil block arranged at an upper surface opposite to the bottom surface and electrically connected to the connection terminal; a first cover arranged at the bottom surface of the circuit substrate and formed with an opening for exposing the connection terminal; a second cover coupled to the first cover in a bottom-opened cylindrical shape; and a vibrator including a magnet arranged inside the coil block, a yoke in which the magnet is mounted, and an elastic member coupled to the yoke and the second cover to vertically vibrate the magnet relative to the coil block.

Abstract: Disclosed is an electric power generation device comprising: a pair of electrodes arranged opposite to each other; and an electret member that is arranged between the pair of electrodes to be spaced apart from the pair of electrodes, and is provided to be movable in a direction of a perpendicular axis passing through the pair of electrodes.

Abstract: A toothbrush drive includes a first drive component for generating a magnetic field and a second drive component driven in both a translational and rotational manner under the influence of the magnetic field. A transmission element is deflected out of a predetermined position for transmission of both translational and rotary movement of the second drive component. The deflection of the transmission element varies along its longitudinal axis. A transmission element can be deflected out of a predefined position for transmission of a translatory movement and a rotational movement of the second drive component to the brush element along a longitudinal axis of the transmission element. The deflection of the transmission element out of the predefined position is varied along the longitudinal axis of the transmission element.

Abstract: A reliable encoder capable of reducing vibration of a printed board when the encoder is subjected to vibration or shock, by means of a simple structure. The encoder has a housing, a rotating code plate arranged in the housing and configured to rotate in synchronization with an object to be measured, a printed board attached to the housing and positioned above the rotating code plate, wherein the encoder has a reinforcing member configured to contact a portion of the printed board where the displacement of the printed board is large while the printed board is resonated due to vibration or shock applied to the encoder.

Abstract: A multifunctional electromagnetic transducer includes a bracket, a vibrating unit including a magnetic circuit part receiving in the bracket, and a plurality of elastic members assembled to the bracket for sustaining the magnetic circuit part. The magnetic circuit part defines a pole plate, a first magnet disposed at a center portion of the pole plate, and a plurality of second magnets surrounding the first magnet and forming a magnetic gap corporately with the first magnet. Each of the second magnets forms a receiving gap corporately with an adjacent second magnet. Each of the receiving gap receives a weight therein. A voice coil is partially inserted into the magnetic gap.

Abstract: Disclosed herein is a motor structure with reduced rotation resistance of a bearing. The motor structure according to the preferred embodiment of the present invention includes: a fixing body, a shaft fixed to the fixing body, a bearing rotatably fitted on the shaft, a rotating body fixed to an outer side of the bearing and rotated by electromagnetic force, a case fixed to the fixing body and having the shaft, the bearing, and the rotating body accommodated in an inner space thereof, and a washer fixed to a top inside of the case so as to be interposed between the top inside of the case and a top surface of the bearing and contacting a part of the top area of the bearing.

Abstract: A vibration generator includes a rotary unit configured to rotate, a weight arranged to generate a vibration in the rotary unit and an electromagnet arranged to displace the weight to a position where a vibration is generated in the rotary unit. The electromagnet is configured to generate an eccentric load in the rotary unit by displacing the weight with an electromagnetic force generated when an input signal is sent to the electromagnet.

Abstract: An eccentrically rotating apparatus has a rotating table 5, a bearing board 4 and a support board 2 spaced apart from each other in a vertical direction and having a common axis C arranged on a base plate 1. The rotating table 5 has a support pole 6 and a weight 7. The support board 2 has a support tip 2a connected to the bearing board 4 with a predetermined space apart and movably arranged on the base plate 1. The apparatus includes a sensor 11 for detecting a position of the weight 7 and a driving unit 9 activated by detected signals from the sensor 11. The rotating table 5 is eccentrically rotated such that the driving unit 9 pushes up the support board 2 at a time when the sensor 11 detects the weight 7.

Abstract: Disclosed herein is a linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated. The linear vibrator includes a bracket supporting the linear vibrator from a lower position. The bracket has a depression in a bottom thereof such that a coil lead wire of a coil is placed in the depression, thus preventing friction between the coil lead wire and a movable unit.

Abstract: In the invention, in order for a brush assembly to be easily built in a motor, the motor includes an aligning means for aligning a main body portion of the brush assembly relative to a lower case engaging the main body portion with the lower case and a guide means for guiding the brush assembly in a direction which is at right angles to a rotational axis L after the main body portion has been aligned relative to the lower case.

Abstract: According to one embodiment, an electronic apparatus includes a casing, a module unit, an installation portion, and a holding portion. The module unit includes an elastic cover member including a projection, and a module fitted in the cover member. The installation portion is provided inside the casing and configured to receive the module unit. The holding portion is projected from the installation portion and configured to surround and hold the module unit. The holding portion includes a fitting portion which is located at a peripheral region thereof and in which the projection is fitted, and a pair of edge portions configured to define the fitting portion and being more away from each other at positions closer to a peripheral region of the holding portion. The projection is in contact with the edge portions and is exposed in the fitting portion to an outside region of the holding portion.

Abstract: A vibration suppressor system includes an annular electric motor system which independently controls rotation of at least two masses about the axis of rotation to reduce in-plane vibration of the rotating system. A method of reducing vibrations in a rotary-wing aircraft includes independently controlling a relative angular position of a multiple of independently rotatable masses to reduce vibrations of a main rotor system.

Abstract: A linear vibrator is disclosed. The linear vibrator includes a cover, a base forming a hollow space together with the cover and defining a plurality of sidewalls, a pair of elastic members received in the hollow space, a weight with a plurality of laterals suspended in the hollow space by the elastic members, and a magnet assembly provided with a plurality of magnetic poles and accommodated in the weight. Each elastic member defines at least a fastening arm comprising a connecting portion, an inner arm extending from one end of the connecting portion for abutting against the lateral of the weight, and an outer arm extending from another end of the connecting portion for abutting against the sidewall of the base. The extending direction of the inner arm and the outer arm of each fastening arm is the same. The magnetic poles of magnet assembly near the coil are opposite to each other. A height of the linear vibrator with the structure can be reduced.

Abstract: There is provided a vertical vibrator according to an exemplary embodiment of the present invention. The vertical vibrator may include: a casing having an inner space of a predetermined size formed therein and a step portion protruded to be stepped from an upper edge thereof; a magnetic unit including a yoke disposed in the inner space of the casing and a magnet fixed by being magnetized on a closed inner surface of the yoke in a vertical direction; an elastic member including an outer ground portion fixed to the step portion and an inner ground portion fixed to the magnetic unit; and a coil for generating vibrations disposed on the lower portion of the magnetic unit and generating electromagnetic force by interaction with the magnetic unit when power is applied thereto.

Abstract: A holder of a surface mount motor includes a holder body that is in contact with an outer peripheral surface of a motor casing and that is mounted on a circuit board, an extending portion that extends rearward from a rear end of the holder body in a direction of a rotational axis of a shaft, and a stopper that extends in a width direction of the extending portion at a rear end of the extending portion and that is press-fitted into a recess provided in a bracket fixed to the motor casing.

Abstract: A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

Abstract: A vibrating motor has a shaft, a stator including a yoke having pole teeth extending toward an axis of the shaft from an inner circumference and coils wound around the pole teeth, a rotor including an eccentric weight formed on a radially outer surface of the shaft, and a permanent magnet integrally formed with the eccentric weight, and a bearing device rotatably supporting the rotor maintaining clearance between the inner circumference of the pole teeth and the rotor. The rotor has a structure in which the shaft, the eccentric weight, and the permanent magnet are integrally formed with each other by a thermoplastic magnetic material composing the permanent magnet.

Abstract: A flat linear vibrating motor includes a cover, a base forming a receiving cavity together with the cover, a coil fixed on the base, an elastic member coupled to the base, a vibrator suspended in the cavity by the elastic member. The elastic member includes a mounting section coupled to the base, an arm extending from the mounting section, a free end extending from the arm, and a binder. The binder includes two plates for clamping the vibrator and a coupling section coupling the two plates for positioning the free end between the vibrator and the coupling section.

Abstract: A horizontal linear vibrator includes: a cover unit; a bracket providing an internal space between the cover unit and the bracket; a vibration unit including a mass body having an insertion part providing an accommodating space at one surface thereof, mounted in the internal space, and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and one or more sub-mass units inserted in the insertion part in order to adjust a resonance frequency of the vibration unit.

Abstract: A flat vibration motor for suppressing deformation of coils even in a reflow at a high temperature, having a stator structure 10 fixing a shaft 1 and having no-core coils C1 and C2; a cover case 20 covered by the stator structure 10 and supporting the other end of the shaft 1; and a rotor frame 30; wherein the stator structure 10 includes: a board 12 having a first face 12a being provided with electrode patterns E1-E3 and a second face 12b being provided with a wiring pattern to be connected to the electrode patterns and to the no-core coils; and a base frame 14 having a burring part 15a into which one end of the shaft 1 is fitted, and being sandwiched between the rotor frame 30 and the upper surfaces of the coils C1 and C2 by abutting against the coils C1 and C2.

Abstract: A holder of a surface mount motor includes a bottom-raising piece formed so as to extend integrally from the bottom portion and bent at a predetermined bending angle with respect to the bottom portion. When the holder is attached to a motor body, there is a risk that a mounting surface of the bottom portion of the holder will not be in the same plane as a mounting surface of a terminal. In such a case, a fine adjustment may be performed simply by slightly raising or lowering the bottom-raising piece. Thus, an adjustment between the heights of the mounting surface of the bottom portion of the holder and the mounting surface of the terminal can be easily performed. A gap between the bottom portion of the holder and the motor casing can be easily changed simply by changing the bending angle of the bottom-raising piece.