# US 10,441,973 B2 · Vibration device and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,973 B2 - Document ID: US10441973B2 - Status: Granted - Kind: B2 - Application number: 15/652,783 - Filed: 2017-07-18 - Published: 2018-10-18 - Granted: 2019-10-15 - Earliest claimed: 2017-04-14 - Assignees: AAC Technologies Pte. Ltd. - Applicants: AAC Technologies Pte, Ltd. - Inventors: Xiang Xu; Jinquan Huang; Hongfu Xu; Fanghua Ling - Web page: https://patentgrep.com/patent/US10441973B2 ## CPC - B06B 1/045: {using vibrating magnet, armature or coil system} - H02K 33/16: with polarised armatures moving in alternate directions by reversal or energisation of a single coil system - H02K 33/18: with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets - 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) - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract A vibration device, including a shell, a cover plate, a vibrator, a stator and an elastic member, the cover plate is matched with the shell to form accommodating space, the vibrator, the stator and the elastic member are accommodated in the accommodating space, one of the vibrator and the stator includes a magnetic circuit unit while the other one includes a coil. the elastic member includes a first connecting portion fixedly connected with the vibrator, a pair of elastic portions bending and extending from two opposite ends of the first connecting portion, and a pair of second connecting portions extending from a tail end of each elastic portion in the direction facing each other, and the pair of second connecting portions is fixedly connected with the shell to suspend the vibrator in the accommodating space. ## Claims ### Claim 1 A vibration device, comprising: a shell having accommodating space, the shell comprising a housing and a cover plate assembled with the housing to form the accommodating space, a vibrator accommodated in the accommodating space, a stator accommodated in the accommodating space, and a pair of elastic members accommodated in the accommodating space, wherein the vibrator comprises a magnetic circuit unit, and the stator comprises a coil, wherein the magnetic circuit unit comprises a magnetic conductor having containing space, and a main magnet arranged in the containing space, the magnetic conductor comprises a bottom wall and a side wall bending and extending along the bottom wall, the bottom wall and the side wall together form the containing space, the main magnet is fixed on the bottom wall, the main magnet and the side wall are spaced from each other to form a magnetic gap, and the coil is inserted into the magnetic gap and surrounds the main magnet, the side wall comprises a pair of first side walls arranged symmetrically in a long axis direction and a pair of second side walls arranged symmetrically in a short axis direction, the first side wall is connected with the second side wall, the pair of elastic members is provided and is respectively connected with the pair of second side walls, each elastic member comprises a first connecting portion fixedly connected with the second side wall, a pair of elastic portions bending and extending from two opposite ends of the first connecting portion, and a pair of second connecting portions extending from a tail end of each elastic portion in a direction facing each other, the pair of second connecting portions is fixedly connected with the housing so that the vibrator is suspended in the accommodating space. ### Claim 2 (depends on 1) The vibration device as described in claim 1, wherein the elastic portion comprises a first elastic connecting arm connected with the first connecting portion and a second elastic connecting arm connected with the second connecting portion, the first elastic connecting arm is connected with the second elastic connecting arm to form an include angle. ### Claim 3 (depends on 1) The vibration device as described in claim 1, wherein the second side wall is provided with a protruding portion extending to the housing, and the first connecting portion is connected with the protruding portion. ### Claim 4 (depends on 3) The vibration device as described in claim 3, wherein the protruding portion is located in a central area of the second side wall in the short axis direction. ### Claim 5 (depends on 1) The vibration device as described in claim 1, wherein the magnetic circuit unit further comprises a pole plate, the pole plate is fixedly arranged at a side of the main magnet, and the side of the main magnet is facing away from the bottom wall of the magnetic conductor. ### Claim 6 (depends on 1) The vibration device as described in claim 1, wherein the vibration device further comprises a printed circuit board, the printed circuit board is arranged between the cover plate and the coil, the coil is electrically connected with the printed circuit board, the coil is fixed at a side of the cover plate by the printed circuit board, and the side of the cover plate faces the housing. ### Claim 7 (depends on 1) An electronic device, comprising: a vibration device as described in claim 1.