# US 2014/0152148 A1 · Apparatus for generating vibrations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152148 A1 - Document ID: US20140152148A1 - Status: Published application - Kind: A1 - Application number: 13/866,572 - Filed: 2013-04-19 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Samsung Electro-Mechanics Co., Ltd. - Applicants: Samsung Electro-Mechanics Co., Ltd. - Inventors: Hwa Young OH; Dong Su MOON; Sang Jin LEE - Web page: https://patentgrep.com/patent/US20140152148A1 ## CPC - H10N 30/88: Mounts; Supports; Enclosures; Casings - B06B 1/0648: {of rectangular shape} - B06B 3/00: Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency - G06F 3/016: {Input arrangements with force or tactile feedback as computer generated output to the user} - H10N 30/2041: {Beam type} - H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR - B06B: METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B1/40, B23Q17/12, B24B31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract There is provided an apparatus for generating vibrations including: a housing having an internal space; a direction changing member installed in the housing so as to be disposed in the internal space; a piezoelectric actuator including a piezoelectric element fixed to the direction changing member such that a horizontal deformation thereof is restrained, and deforming the direction changing member by a horizontal deformation thereof; and a vibrator fixed to the direction changing member and vertically displaced in a vertical direction according to a vertical deformation of the piezoelectric actuator. ## Claims ### Claim 1 An apparatus for generating vibrations, the apparatus comprising: a housing having an internal space; a direction changing member installed in the housing so as to be disposed in the internal space; a piezoelectric actuator including a piezoelectric element fixed to the direction changing member such that a horizontal deformation thereof is restrained, and deforming the direction changing member by a horizontal deformation thereof; and a vibrator fixed to the direction changing member and vertically displaced in a vertical direction according to a vertical deformation of the piezoelectric actuator. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the direction changing member comprises: a fixed end fixed to the housing; horizontal portions extending from the fixed end to both sides in a horizontal direction; vertical portions extending from horizontal outer portions of the horizontal portions downwardly in a vertical direction; and displacement extending portions extending from vertical lower portions of the vertical portions to both sides in a horizontal direction and having the vibrator fixed to both sides thereof in the horizontal direction. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the piezoelectric actuator is provided in a space formed by the horizontal portions and the vertical portions. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein a vertical directional upper portion of the piezoelectric actuator is attached to horizontal portions. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein horizontal directional both ends of the piezoelectric actuator are attached to the vertical portions. ### Claim 6 (depends on 3) The apparatus of claim 3, wherein the vertical directional upper portion and the horizontal directional both ends of the piezoelectric actuator are attached to the horizontal portions and the vertical portions. ### Claim 7 (depends on 2) The apparatus of claim 2, wherein portions of the displacement extending portions coupled to the vertical portions are lower than portions thereof fixed to the vibrator in a vertical direction. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the displacement extending portions include a coupling portion whose portion fixed to the vibrator is parallel to a horizontal direction. ### Claim 9 (depends on 2) The apparatus of claim 2, wherein the horizontal portions and the vertical portions are coupled at a right angle. ### Claim 10 (depends on 2) The apparatus of claim 2, wherein the horizontal portions are warped as the piezoelectric actuator is deformed in a horizontal direction. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the housing includes a bracket on which the direction changing member is installed, and a case covering the bracket and incorporated with the bracket to provide an internal space. ### Claim 12 (depends on 1) The apparatus of claim 1, further comprising a board attached to the bracket and providing power to the piezoelectric actuator. ### Claim 13 (depends on 1) The apparatus of claim 1, wherein the vibrator is a weight made of a high specific gravity material. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the weight is longer than the piezoelectric actuator in the horizontal direction. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein the weight includes a weight adding portion extending downwardly in a vertical direction on an outer side of the outer end of the piezoelectric actuator. ### Claim 16 (depends on 2) The apparatus of claim 2, wherein a damper is provided in at least one member in a portion where the vibrator and an inner surface of the housing face one another. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the damper is disposed on an outer end of the vibrator or an inner surface of the housing facing the outer end of the vibrator. ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the damper is made of a material including at least one of urethane foam, silicon foam, and rubber. ### Claim 19 (depends on 16) The apparatus of claim 16, wherein the damper is made of a material which is elastic and absorbs noise. ### Claim 20 (depends on 16) The apparatus of claim 16, wherein the damper is formed of least one coil spring. ### Claim 21 (depends on 1) The apparatus of claim 1, wherein the piezoelectric actuator has a square pillar shape in which a length thereof in a horizontal direction is greater than a height thereof in a vertical direction. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the housing has a square pillar shape in which a length thereof in a horizontal direction is greater than a height thereof in a vertical direction. ### Claim 23 (depends on 1) The apparatus of claim 1, wherein the direction changing member comprises: a fixed end fixed to the housing; at least two horizontal portions extending from the fixed end to both sides in a horizontal direction; vertical portions extending from horizontal outer portions of the horizontal portions downwardly in a vertical direction; and displacement extending portions extending from vertical lower portions of the vertical portions to both sides in a horizontal direction and having the vibrator fixed to both sides thereof in the horizontal direction. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the piezoelectric actuator is provided in a space formed by the horizontal portions and the vertical portions. ### Claim 25 An apparatus for generating vibrations, the apparatus comprising: a housing having an internal space; a direction changing member installed in the housing so as to be disposed in the internal space; a piezoelectric actuator including a piezoelectric element fixed to the direction changing member such that a deformation thereof in one direction is restrained, and deforming the direction changing member by a deformation thereof in one direction; and a vibrator fixed to the direction changing member and displaced in a direction perpendicular to the one direction according to a deformation of the piezoelectric actuator in the one direction.