公开(公告)号：US20190052161A1

公开(公告)日：2019-02-14

申请号：US16075560

申请日：2016-05-18

Applicant: GOERTEK INC.

Inventor： Fenglei ZU ,  Chunfa LIU

IPC: H02K33/16

Abstract: The vibrator comprises a vibration block, and the vibration block comprises at least one permanent magnet, the stator comprises conductive blocks, and the conductive blocks are subjected to the effect of a magnetic field force which is the same as and/or opposite to the vibration direction of the vibrator. When the vibrator is in a balanced state, the resultant force of the magnetic field force is zero. When the magnetic conductive blocks are subjected to the effect of an excitation force to perform a relative displacement relative to the vibrator in the vibration direction of the vibrator, a direction of the resultant force of the magnetic field forces is the same as the direction of the relative displacement, a magnitude of the resultant force of the magnetic field forces has a proportional relationship with a magnitude of the relative displacement. The conductive blocks are used to replace the stator coils.

公开(公告)号：US20180375415A1

公开(公告)日：2018-12-27

申请号：US15776788

申请日：2016-05-19

Applicant: GOERTEK INC.

Inventor： Chunfa LIU ,  Fenglei ZU

IPC: H02K33/18

CPC classification number: H02K33/18 ,  H02K33/00

Abstract: A linear vibration motor includes a vibration block having permanent magnets and magnetic conductive yokes between adjacent permanent magnets; and a stator having stator coils arranged corresponding to the vibration block and magnetic conductive cores in the stator coils, a magnetic conductive brush being fixed on the magnetic conductive cores and a brush head of the brush being in elastic contact with the magnetic conductive yokes; or, a magnetic conductive brush being fixed on the magnetic conductive yokes and the brush head of the brush being in elastic contact with the magnetic conductive cores. The magnetic field lines generated by the vibration block can be concentrated to be conducted to the stator coils, thereby maximizing the effective magnetic field of the vibration block to improve the acting force between the vibrator and the stator and obtain an intensified vibration effect.

公开(公告)号：US20180351443A1

公开(公告)日：2018-12-06

申请号：US15778639

申请日：2016-05-19

Applicant: GOERTEK INC.

Inventor： Chunfa LIU ,  Fenglei ZU

IPC: H02K33/14 ,  H02K33/18

CPC classification number: H02K33/14 ,  H02K33/16 ,  H02K33/18

Abstract: Disclosed is a linear vibration motor, comprising a vibrator and a stator, the vibrator comprises a counterweight block and a vibration block, the vibration block includes at least two magnets adjacently arranged and a magnetic conductive yoke disposed between any two adjacent magnets, and polarities of adjacent ends of two adjacent magnets are the same. The magnets are any combination of a permanent magnet and/or an electromagnet. The stator includes a stator coil disposed at one side, or upper and lower sides of the vibrator, and a magnetic conductive core disposed in the stator coil, and the axis direction of the stator coil is perpendicular to the magnetization direction of the magnets. The linear vibration motor adopts free combinations of permanent magnets and electromagnets to constitute the vibration block, and thus expands the implementation manners of the linear vibration motor so as to improve the flexibility in the production process.

公开(公告)号：US20180287476A1

公开(公告)日：2018-10-04

申请号：US15762055

申请日：2015-12-15

Applicant: GOERTEK INC.

Inventor： Fenglei ZU ,  Chunfu LIU

IPC: H02K33/14 ,  H02K5/22

CPC classification number: H02K33/14 ,  H02K5/225 ,  H02K33/18

Abstract: A linear vibration motor comprises a vibrator and a stator arranged parallel to the vibrator. The vibrator comprises a counterweight block and a vibration block embedded and fixed in the counterweight block. Permanent magnets in the vibration block and electromagnets in the stator generate the push-pull forces acting on each other. The electromagnets in the stator generates a variable magnetic field after being energized, and drives the vibrator to move reciprocally along the direction parallel to the plane in which the stator is located by changing the direction of the magnetic field lines of the magnetic field. With the repulsive force between two ends the permanent magnets having the same polarity, the linear vibration motor allows the magnetic field lines of the permanent magnets to concentratedly pass through coils, thus obtaining a larger magnetic flux and a stronger vibration effect.

公开(公告)号：US20180241294A1

公开(公告)日：2018-08-23

申请号：US15750545

申请日：2015-12-15

Applicant: GOERTEK INC.

Inventor： Fenglei ZU ,  Chungfa Liu

IPC: H02K33/18 ,  H02K35/02 ,  H02K33/14 ,  B06B1/04

CPC classification number: H02K33/18 ,  B06B1/045 ,  H02K33/14 ,  H02K33/16 ,  H02K35/02

Abstract: A linear vibration motor comprising a vibrator and a stator, wherein the vibrator comprises at least two permanent magnets disposed adjacent to each other and a magnetic yoke disposed between any two adjacent permanent magnets, and adjacent ends of the two adjacent permanent magnets have the same polarities; the stator comprises coils and magnetic cores disposed in the coils; magnetization directions of the permanent magnets is perpendicular to axis directions of the coils. The linear vibration motor enables magnetic lines of flux of permanent magnets to intensively pass through the coils by means of a repulsive force between two ends with same polarity of two permanent magnets so as to obtain a larger magnetic flux and a stronger vibration sensing effect.