# US 10,245,618 B2 · Linear vibration motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,618 B2 - Document ID: US10245618B2 - Status: Granted - Kind: B2 - Application number: 15/417,150 - Filed: 2017-01-26 - Published: 2017-11-30 - Granted: 2019-04-02 - Earliest claimed: 2016-05-27 - Assignees: AAC Technologies Pte. Ltd. - Applicants: Lubin Mao - Inventors: Lubin Mao - Web page: https://patentgrep.com/patent/US10245618B2 ## CPC - B06B 1/045: {using vibrating magnet, armature or coil system} - H02K 1/34: Reciprocating, oscillating or vibrating parts of the magnetic circuit - H02K 33/00: Motors with reciprocating, oscillating or vibrating magnet, armature or coil system (arrangements for handling mechanical energy structurally associated with motors H02K7/00, e.g. H02K7/06) - H02K 33/16: with polarised armatures moving in alternate directions by reversal or energisation of a single coil system - 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 linear vibration motor is disclosed, which comprises a housing having a receiving space; a vibrator unit received in the receiving space; an elastic members having one end connecting to the vibrator unit and another end connecting to the housing for suspending the vibrator unit in the receiving space; a first damping member arranged between the housing and one side of the elastic member; and a second damping member arranged between the vibrator unit and the other side of the elastic member. ## Claims ### Claim 1 A linear vibration motor, comprising: a housing having a receiving space; a vibrator unit received in the receiving space; an elastic member having one end connecting to the vibrator unit and another end connecting to the housing for suspending the vibrator unit in the receiving space; a first damping member arranged between the housing and the elastic member; and a second damping member arranged between the vibrator unit and the elastic member, a fastening member fixed to the housing and engaged with the first damping member, wherein the first damping member includes a first engaging surface in contact with the fastening member, and a first protruding portion protruding from the first engaging surface in a direction towards the fastening member; the fastening member includes a second engaging surface in contact with the first damping member, and a first recess corresponding to the first protruding portion and recessed from the second engaging surface in a direction away from the first damping member. ### Claim 2 (depends on 1) The linear vibration motor as described in claim 1, wherein the first damping member and the second damping member are respectively fixed on two opposite sides of the elastic member. ### Claim 3 (depends on 1) The linear vibration motor as described in claim 1, wherein the elastic member includes a first elastic arm connected to the vibrator unit, a second elastic arm connected to the housing, and a deformation arm connecting the first elastic arm to the second elastic arm; the first damping member is fixed on one side of the deformation arm and sandwiched between the deformation arm and the housing; the second damping member is fixed on the other side of the deformation arm and sandwiched between the deformation arm and the vibrator unit. ### Claim 4 (depends on 3) The linear vibration motor as described in claim 3, wherein the first damping member is arranged in a middle of the deformation arm. ### Claim 5 (depends on 3) The linear vibration motor as described in claim 3 further including a gasket attached to the first elastic arm or the second elastic arm. ### Claim 6 (depends on 1) The linear vibration motor as described in claim 1, wherein the vibrator unit includes a weight and a magnet assembly received in the weight. ### Claim 7 (depends on 6) The linear vibration motor as described in claim 6, wherein the second damping member includes a third engaging surface in contact with the weight, and a second protruding portion protruding from the third engaging surface in a direction towards the weight; the weight includes a fourth engaging surface and a second recess adapted to the second protruding portion and recessed from the fourth engaging surface in a direction away from the second damping member. ### Claim 8 (depends on 7) The linear vibration motor as described in claim 7, wherein the first recess is right opposite to the second recess.