# US 2019/0314860 A1 · 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 2019/0314860 A1 - Document ID: US20190314860A1 - Status: Published application - Kind: A1 - Application number: 16/343,121 - Filed: 2017-10-10 - Published: 2019-10-17 - Earliest claimed: 2016-10-31 - Assignees: Nidec Copal Corporation - Applicants: Nidec Copal Corporation - Inventors: Yoshinori KATADA - Web page: https://patentgrep.com/patent/US20190314860A1 ## CPC - B06B 1/045: {using vibrating magnet, armature or coil system} - H02K 33/02: with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs - H02K 33/12: with armatures moving in alternate directions by alternate energisation of two coil systems - H02K 33/16: with polarised armatures moving in alternate directions by reversal or energisation of a single coil system - H02P 25/032: Reciprocating, oscillating or vibrating motors - 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}) - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ## Abstract Provided is a linear vibration motor having a structure requiring less space and also having good responsiveness. This linear vibration motor is characterized by having a mover having weights affixed on the longitudinal end side of a pair of long magnets; a coil provided in a long shape in the longitudinal direction of the pair of magnets and driving and reciprocating the mover in the transverse direction by a magnetic action produced by the conduction of electricity; a base to which the coil is affixed; and an elastic member elastically deformed by the reciprocation of the mover. ## Claims ### Claim 1 A linear vibration motor comprising: a movable element securing a weight body to a lengthwise-direction end portion side of a pair of long magnets; a coil, provided in a long shape along the lengthwise direction of the pair of magnets, reciprocatingly driving the movable element, in the short direction, through magnetism when power is supplied; a substrate whereon the coil is secured; and an elastic member that undergoes elastic deformation through the reciprocating motion of the movable element. ### Claim 2 (depends on 1) The linear vibration motor as set forth in claim 1, wherein: the coil comprises two straight parts along the lengthwise direction, and connecting parts connecting both end sides of the straight parts; and the pair of magnets is provided along the two straight parts, respectively, where each magnet is positioned bridging the individual straight parts, in the lengthwise direction in the plan view. ### Claim 3 (depends on 2) The linear vibration motor as set forth in claim 2, wherein: the weight body is disposed so as to not overlap the straight part in the plan view. ### Claim 4 (depends on 1) The linear vibration motor as set forth in claim 1, wherein: the elastic member comprises one piece portion along the end face, in the short direction, of the magnet, and another piece portion that is perpendicular to the one piece portion, wherein the one piece portion is supported in a stationary position, and the other piece portion is secured held between the magnet and the weight body. ### Claim 5 (depends on 4) The linear vibration motor as set forth in claim 4, wherein: a yoke is secured, along the lengthwise direction, on the side of the magnets that is opposite from the coil side; and the yoke comprises a piece portion, along the lengthwise direction end face of the magnet, are an end portion side in the lengthwise direction, where the other piece portion of the elastic member is held between the protruding piece portion and the weight body. ### Claim 6 (depends on 5) The linear vibration motor as set forth in claim 5, wherein: the pair of magnets comprises a space in the short direction; and a fitting portion fitting into the space of the pair of magnets is provided on the yoke. ### Claim 7 (depends on 1) The linear vibration motor as set forth in claim 1, wherein: the substrate is provided in a long shape along the lengthwise direction of the coil. ### Claim 8 (depends on 1) A touch input device comprising a linear vibration motor as set forth in claim 1. ### Claim 9 (depends on 1) An electronic device comprising a linear vibration motor as set forth in claim 1.