Reed Type Patents (Class 310/25)
  • Patent number: 10971984
    Abstract: A linear vibration motor includes a fixed portion, a movable portion, and a suspension portion; the fixed portion further includes an outer frame, a coil set, a conductive sheet set, a connecting circuit and a terminal; the movable portion includes a bracket, a primary magnet set, at least a secondary magnet set; the suspension portion includes a pair of elastic members connected to the fixed portion and the movable portion, and provides a restoring force when the movable portion is displaced; the coil set and the primary magnet set provide a driving force to drive the movable portion to generate vibration; the conductive sheet set and the secondary magnet set provide damping when the movable portion moves.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: April 6, 2021
    Assignee: TOPRAY MEMS INC.
    Inventors: Chin-Sung Liu, Shin-Ter Tsai, Hsiao-Ming Chien
  • Patent number: 10951089
    Abstract: The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When acurrent is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 16, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Che-Wei Chang
  • Patent number: 10951104
    Abstract: Provided is a linear actuator including a movable element, a stationary element, a magnetic drive mechanism configured to linearly move the movable element in a first direction with respect to the stationary element, and damper member arranged between the movable element and the stationary element. The magnetic drive mechanism includes a coil holder arranged on the stationary element, a coil supported by a coil supporting unit of the coil holder, a first yoke arranged on the movable element, and a first permanent magnet held by the first yoke. The damper member is arranged in a portion where the first yoke and the coil holder face each other in the second direction. As a result, the damper member can be arranged between the stationary element and the movable element without using a case.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: March 16, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Tadashi Takeda, Hiroshi Kitahara, Masao Tsuchihashi
  • Patent number: 10938287
    Abstract: An actuator may include a supporting body; a movable body; a first magnetic drive circuit including a first coil and a first magnet disposed adjacent to each other in a first direction and driving the movable body in a second direction orthogonal to the first direction; and a second magnetic drive circuit including a second coil and a second magnet disposed adjacent to each other in the first direction and driving the movable body in a third direction orthogonal to the first direction and intersecting the second direction. The second coil and the second magnet may be disposed in alignment with the first magnetic drive circuit in the first direction. The supporting body may include a restraining member. A first elastic member may be in contact with both the movable body and the restraining member. A second elastic may be in contact with both the movable body the restraining member.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 2, 2021
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Masao Tsuchihashi, Tadashi Takeda, Hiroshi Kitahara
  • Patent number: 10921179
    Abstract: An assembly for a turbine engine, the assembly including a casing and an impeller rotatably movable inside the casing, the impeller including at least one blade having a tip edge opposite the casing, wherein the tip edge includes a magnet and wherein the casing includes an electrical conductor suitable for generating between the terminals thereof an electric voltage induced by the magnet of the tip edge opposite same and representing vibrations sustained by the tip edge of the blade when the impeller is rotated.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 16, 2021
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventors: Arnaud Talon, Gilbert Arrouge, Jean-Yves Cazaux, Julien Garnier
  • Patent number: 10879781
    Abstract: The present application relates to the technical field of electronics and provides a linear vibrating motor comprising a motor housing, a stator, a vibrator and an elastic support member for suspending the vibrator in the motor housing and for supporting the vibrator and providing an elastic restoring force; the motor housing comprises a first lateral housing and a second lateral housing; the first lateral housing comprises a first lateral plate, as well as a second lateral plate and a third lateral plate that are disposed at two ends of the first lateral plate respectively; the second lateral housing comprises a fourth lateral plate, as well as a fifth lateral plate and a sixth lateral plate that are disposed at two ends of the fourth lateral plate respectively; and the first lateral housing and the second lateral housing are fastened to form a closed space that accommodates the stator.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: December 29, 2020
    Assignee: GOERTEK INC.
    Inventors: Yueguang Zhu, Yuncheng Li
  • Patent number: 10868465
    Abstract: The present disclosure provides a linear vibration motor. The linear vibration motor includes: a housing and a stator; a vibrator including a mass with a receiving hole and a first driving member disposed in the receiving hole and fixed to the mass; and an elastic support member. The stator includes a fixed member fixed to the housing and passing through the mass via the receiving hole, and a second driving member fixed to the fixed member and spaced apart from the first driving member. One of the first driving member and the second driving member includes a permanent magnet, and the other includes a coil. A first through hole is formed in the top wall. A second through hole is formed in the bottom wall. Two opposite ends of the fixed member in the vibration direction are respectively embedded into the first through hole and the second through hole.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 15, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Yun Tang, Lubin Mao
  • Patent number: 10855156
    Abstract: A vibration actuator has a movable body including a magnet, a fixing body including a coil, and an elastic support portion. The movable body vibrates in a magnetization direction of the magnet in cooperation with the coil to which power is supplied and the magnet. The fixing body has a peripheral wall portion that is disposed to surround the movable body in a direction intersecting the magnetization direction. The elastic support portion is a plate spring which has one end portion fixed to an outer periphery of the movable body opposing an inner surface of the peripheral wall portion and the other end portion fixed to the peripheral wall portion and is disposed in a radial direction from the outer periphery of the movable body. The one end portion of the elastic support portion is bonded by a fixing portion provided in the movable body.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 1, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Takanori Matsuyama, Shinya Tashima, Koichi Azumai, Katsuhiro Hashimoto
  • Patent number: 10833558
    Abstract: The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When a current is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 10, 2020
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Che-Wei Chang
  • Patent number: 10831276
    Abstract: According to some embodiments, a haptic feedback module for generating a haptic feedback event is described. The haptic feedback module includes an enclosure having walls that define a cavity. The enclosure is capable of carrying operational components within the cavity that include a frame that includes tungsten, a magnetic coil element that is capable of generating a magnetic field, a magnetic element that is carried within an aperture of the frame, linear-actuation end stops that are welded to a first end of the frame and a second end of the frame that opposes the first end, and springs that couple together the walls of the enclosure to the linear-actuation end stops.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: November 10, 2020
    Assignee: APPLE INC.
    Inventors: Dominic P. Cincione, Matthew D. Dombach, Darya Amin-Shahidi, Scott D. Ridel, Vu A. Hong, Alex J. Speltz, Denis G. Chen
  • Patent number: 10819202
    Abstract: A linear vibration motor includes: a casing having an upper casing whose bottom is open and a lower casing coupled to the upper casing to form an internal space therein; a stator disposed on top of the lower casing in the internal space formed by the casing; an elastic member disposed around the stator in the internal space formed by the casing in such a manner as to allow one surface thereof to be coupled to the lower casing; an oscillator mounted on the other surface of the elastic member and having a ring-shaped magnet disposed around the stator; and a magnetic fluid applied to top of the ring-shaped magnet, wherein the upper casing includes a ring-shaped protrusion formed on the inner surface facing the lower casing, and an inner diameter of the ring-shaped protrusion is greater than an outer diameter of the ring-shaped magnet.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: October 27, 2020
    Assignee: MPLUS CO., LTD.
    Inventor: Seuk Hwan Chung
  • Patent number: 10784758
    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.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: September 22, 2020
    Assignee: GOERTEK INC.
    Inventors: Chunfa Liu, Fenglei Zu
  • Patent number: 10764688
    Abstract: The present disclosure provides a speaker, including a holder, a magnetic circuit unit, a vibration unit, and an electrical connection member. The vibration unit includes a diaphragm and a voice coil. The electrical connection member is electrically connected to the voice coil. The magnetic circuit unit includes a yoke. A pad fixed to the holder is formed at an end of the electrical connection member facing away from the voice coil. The yoke includes a bottom plate exposed out of the holder, and a recess is formed at a side of the bottom plate facing away from the diaphragm. The speaker further includes a printed circuit board connected to the pad. The printed circuit board electrically connects the electrical connection member with an external circuit, and the printed circuit board is received in the recess and extends to the pad.
    Type: Grant
    Filed: July 28, 2019
    Date of Patent: September 1, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventor: Guqing Zhang
  • Patent number: 10742104
    Abstract: The present application discloses a linear vibrating motor and relates to the technical field of micro-motors. The linear vibrating motor comprises a housing, a stator and a vibrator, and further comprises elastic support members, which are located at two ends of the vibrator and configured to support the vibrator and to provide elastic restoring forces, wherein the elastic support member comprises two elastic arms; connecting portions are disposed at two ends of the same side of each elastic arm respectively; the connecting portions at one ends of the two elastic arms are combined together; the two elastic arms extend toward the respective connecting portions respectively in a transverse direction to form a transverse cross structure; and the two connecting portions at the other ends of the two elastic arms are in combination with the vibrator and the housing respectively.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: August 11, 2020
    Assignee: GOERTEK INC.
    Inventors: Yueguang Zhu, Baoyu Liu, Yuncheng Li
  • Patent number: 10610892
    Abstract: A vibration actuator includes: a movable part including one of a coil or a magnet; a fixing part including the other one of the coil or the magnet; and an elastic supporting part supporting the movable part to the fixing part. The movable part reciprocates to the fixing part in a vibrating direction by interaction between the coil and the magnet. The magnet is disposed to be radially inwardly spaced apart from the coil. The elastic supporting part is fixed at its one end to the fixing part and at its other end to the movable part. The elastic supporting part has a structure for cantilevering the movable part. The movable part includes a weight provided on a free-end side of the movable part and a weight connecting part to which the weight is connected. The weight is fixed to the weight connecting part by a fixing member.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 7, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yuki Takahashi, Kazutaka Sakaguchi, Yasutaka Kitamura, Shigeyuki Shimomura, Yuki Ogihara
  • Patent number: 10610891
    Abstract: A back yoke of a vibration motor has a rectangular top surface portion, a long side protrusion portion that protrudes downward from a long side portion of the top surface portion, and a short side protrusion portion that protrudes downward from a short side portion of the top surface portion. The short side protrusion portion has a protrusion amount smaller than that of the long side protrusion portion. A portion of a lead wire extending from the short side of a coil is disposed below the short side protrusion portion.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: April 7, 2020
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Zendi Mori, Mitsuru Murata
  • Patent number: 10610894
    Abstract: A vibration actuator includes: a movable part including a coil; a fixing part including a magnet; and an elastic supporting part supporting the movable part such that the movable part is movable to the fixing part. The movable part reciprocates to the fixing part in a vibrating direction by interaction between the coil and the magnet. The magnet includes a first magnet and a second magnet joined to each other such that their magnetization directions are opposite to each other, and the magnet is disposed to be radially inwardly spaced apart from the coil. The elastic supporting part is fixed at its one end to the fixing part and at its other end to the movable part. The elastic supporting part has a structure for cantilevering the movable part. At least one of the first and the second magnets includes a depressed portion in its joining surface.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 7, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yuki Takahashi, Kazutaka Sakaguchi, Yasutaka Kitamura, Shigeyuki Shimomura, Yuki Ogihara
  • Patent number: 10610893
    Abstract: A vibration actuator includes: a movable part including a coil or a magnet; a fixing part including the other one of the coil or the magnet; and an elastic supporting part supporting the movable part such that the movable part is movable to the fixing part. The movable part reciprocates with respect to the fixing part in a vibrating direction by interaction between the coil and the magnet. The magnet is disposed to be radially inwardly spaced apart from the coil. The elastic supporting part is fixed at its one end to the fixing part and at its other end to the movable part. The elastic supporting part has a structure for cantilevering the movable part. The coil in a state of being fixed to a resin coil holder is integrated in the movable part or the fixing part.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 7, 2020
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventors: Yuki Takahashi, Kazutaka Sakaguchi, Yasutaka Kitamura, Shigeyuki Shimomura, Yuki Ogihara
  • Patent number: 10596594
    Abstract: The present disclosure provides a vibration motor. The vibration motor includes a housing with side walls; a vibration unit accommodated in the housing; a driving device; and an elastic member elastically supporting the vibration unit in the housing. The vibration unit includes a first surface and a second surface connecting the first surface. The elastic member includes a first fixed section, extension sections extending from two sides of the first fixed section and surrounding the second surface and a second fixed section connecting to the extension section and fixed on the side wall away from one side of the first fixed section. The elastic member includes a first elastic member and a second elastic member opposite to the first elastic member. The first elastic member and the second elastic member are respectively fixed on two first surfaces of the vibration unit.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 24, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Fanghua Ling, Hongfu Xu, Wenli Wang, Xifeng Huang
  • Patent number: 10585480
    Abstract: An electronic device is configured to provide haptic feedback to a user based on an input action associated with an input device. The electronic device includes a haptic engine operably connected to a processing device. The haptic engine includes an electromagnetic actuator that detects an input action associated with the input device. The electromagnetic actuator also produces a haptic output in response to the detection of the input action.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 10, 2020
    Assignee: APPLE INC.
    Inventors: Tyler S. Bushnell, Benjamin J. Kallman, David M. Pelletier
  • Patent number: 10575097
    Abstract: According to an embodiment of the present disclosure, provided are a vibration output device and a portable electronic apparatus outputting vibration.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: February 25, 2020
    Assignee: YEIL ELECTRONICS CO., LTD.
    Inventors: Yoon Kyu Kang, Jae Yong Kim
  • Patent number: 10542348
    Abstract: An electromechanical transducer includes: a structural portion configured such that two pairs of magnets magnetized in opposite directions, a yoke configured to guide magnetic fluxes from the magnets, and a coil configured to receive a supplied electric signal are located integrally; an armature having an inner portion penetrating an internal space of the structural portion and outer portions protruding from the inner portion toward both sides in a first direction, forming, together with the structural portion, a magnetic circuit through regions of the inner portion facing the two pairs of magnets, and configured to displace in a second direction perpendicular to the first direction by magnetic force of the magnetic circuit; and a pair of elastic members each located on both sides of the armature in the second direction, and configured to provide, to the armature, restoring force according to relative displacement of the armature corresponding to the structural portion.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 21, 2020
    Assignee: RION Co., Ltd.
    Inventors: Takashi Iwakura, Fumitaka Funahashi, Kei Koyama
  • Patent number: 10536063
    Abstract: The present invention discloses a vibration motor and a portable device. The motor comprises: a housing, comprising an upper cover and a lower housing connected to each other, an FPCB being inserted in the lower housing, a cavity being arranged inside the housing, and a coil and a vibration system being accommodated in the cavity, wherein the vibration system comprises a vibrator and an elastic support, a magnetic gap is arranged in the vibrator, a first end of the elastic support is connected to the vibrator, and a second end of the elastic support is connected to the housing; and a first end of the coil is fixed at the lower housing, a second end of the coil is inserted in the magnetic gap, and the coil is in signal connection with an external circuit through the FPCB.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 14, 2020
    Assignee: Goertek, Inc.
    Inventors: Yueguang Zhu, Chao Wang
  • Patent number: 10536065
    Abstract: A linear vibration motor comprises a vibrator and a stator disposed parallel to the vibrator, the vibrator comprising a weight block and a vibration block embedded in the weight block, and the stator comprises stator coils and a magnetic conductive cores disposed in the stator coil, wherein the vibration block comprises at least two magnetic members arranged in a row and magnetic reinforcement members disposed between adjacent magnetic members, and the magnetic members and the magnetic reinforcement members are permanent magnets; adjacent ends of each two adjacent magnetic members have the same polarity; and the magnetization direction of the magnetic reinforcement member is perpendicular to that of the magnetic member. The linear vibration motor can increase the magnetic lines of force passing through the stator coil, thereby intensifying the vibration effect of the product.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 14, 2020
    Assignee: GOERTEK INC.
    Inventors: Chunfa Liu, Fenglei Zu
  • Patent number: 10536064
    Abstract: The present invention discloses a linear vibration motor. The linear vibration motor comprises: a stator assembly including a shell, a coil and a central support, wherein the shell is provided with a cavity therein and includes a shell wall in parallel to a direction of vibration, and the coil and the central support are located in the cavity, the coil being configured on the shell wall and the central support being configured in the intermediate portion of the shell wall to connect a resilient element; a vibrator assembly including a permanent magnet and a counterweight portion, the permanent magnet and the counterweight portion being connected together; and resilient elements, through which the vibrator assembly is suspended within the cavity, wherein the resilient elements comprise a first end and a second end arranged opposite to each other in the direction of vibration, the first end being connected to the central support and the second end being connected to the vibrator assembly.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 14, 2020
    Assignee: GOERTEK, INC.
    Inventors: Baoyu Liu, Yueguang Zhu
  • Patent number: 10530231
    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 and obtain an intensified vibration effect.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 7, 2020
    Inventors: Chunfa Liu, Fenglei Zu
  • Patent number: 10486196
    Abstract: The present application provides a linear vibration motor, including a base, a vibrating unit and an elastic member. The elastic member includes a first elastic member and a second elastic member, the base includes two side plates facing toward each other along the vibrating direction of the vibrating unit, the first elastic member includes a first fixing arm fixed at the vibrating unit, two first elastic arms extending from the first fixing arm and two first connecting arms bending and extending from ends of two first elastic arms; the second elastic member includes a second fixing arm fixed at the vibrating unit, two second elastic arms bending and extending from two ends of the second fixing arm and two second connecting arms extending from the two second elastic arms; and the two first connecting arms and two second connecting arms are fixed at the two side plates, respectively.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: November 26, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Zhilin Chai, Wenli Wang, Hongfu Xu, Fanghua Ling
  • Patent number: 10478855
    Abstract: A linear vibration motor, including: a base, a vibrating unit, an elastic member, a first stopper and a second stopper. The elastic member includes two elastic members mutually spaced and arranged by stacking. Each elastic member includes a fixing arm fixed on the vibrating unit, two elastic arms bending and extending from the fixing arm, and two connecting arms respectively bending and extending from ends of the elastic arms, the connecting arms are respectively fixed on the base; the first stopper is fixed at a side of the fixing arm away from the vibrating unit; the second stopper is fixed on a side of the connecting arm close to the vibrating unit; the first stopper and the second stopper are mutually spaced and an orthographic projection of the first stopper along the vibrating direction at least partially falls into the second stopper.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 19, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hongfu Xu, Jinquan Huang, Fanghua Ling, Wenli Wang
  • Patent number: 10483833
    Abstract: A first elastic member includes a first fastening portion, a second fastening portion, and a first coupling portion. A second elastic member includes a third fastening portion, a fourth fastening portion, and a second coupling portion. The first fastening portion, the second fastening portion, the third fastening portion, and the fourth fastening portion extend in a lateral direction. The first fastening portion and the second fastening portion face each other in a longitudinal direction, perpendicular to the lateral direction. The third fastening portion and the fourth fastening portion face each other in the longitudinal direction. The first coupling portion and the second coupling portion include plane portions extending in the longitudinal direction when a vibrating body has zero displacement. The first fastening portion to the fourth fastening portion extend in the lateral direction without being bent from coupled portions between themselves to a first curve to a fourth curve.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: November 19, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tomohiro Akanuma, Mitsuru Oi
  • Patent number: 10478856
    Abstract: The present disclosure provides a linear vibration motor, including: a base, a vibrating unit and an elastic member. The elastic member comprises a first elastic member and a second elastic member. The first elastic member comprises a first fixing arm, two first elastic arms respectively extending from the first fixing arm, two first connecting arms respectively extending from the two first elastic arms, and two first avoiding holes penetrating through the first fixing arm; the second elastic member comprises a second fixing arm, two second elastic arms respectively extending from the second fixing arm, and two second connecting arms respectively extending from the two second elastic arms, the first avoiding holes are respectively arranged directly facing the two second connecting arms. Comparing with the prior art, the linear vibration motor of the present disclosure can be conveniently assembled, and has good vibration property and high reliability.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: November 19, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hongfu Xu, Jinquan Huang, Fanghua Ling
  • Patent number: 10468956
    Abstract: An electronic device may have an electrical component with a moving portion. The moving portion of the electrical component may include a moving mass and may include coils or other circuitry coupled to the moving mass. The moving mass may be supported within a support structure such as a housing structure. Springs may be coupled between walls in the housing structure and end portions of the moving mass. The coils or other circuitry on the moving mass may be coupled to flexible printed circuit cables. The flexible printed circuit cables may be coupled to the coils at the ends of the moving mass adjacent to the springs. The flexible printed circuit cables may have localized stiffeners that help prevent damage to metal traces in the cables during cable bending. The cables may have U-shapes or other suitable shapes.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: November 5, 2019
    Assignee: Apple Inc.
    Inventors: Yaocheng Zhang, Kevin M. Froese, Richard H. Dinh, Teodor Dabov
  • Patent number: 10406559
    Abstract: A vibration actuator having a stationary element; a movable element that is supported elastically so as to enable vibration on the stationary element; and a driving source for causing reciprocating vibration of the movable element in relation to the stationary element, wherein: the movable element comprises an opposed face that opposes an opposing face of the stationary element; a magnetic fluid that has viscosity is filled into a gap between the opposing face and the opposed face and is attracted magnetically to at least either the opposing face or the opposed face; and on the other of the opposing face or the opposed face, a holding region for retaining the magnetic fluid is provided, and a lipophobic surface, for repelling the magnetic fluid is provided so as to surround the holding region.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 10, 2019
    Assignee: Nidec Copal Corporation
    Inventor: Shinsuke Okayasu
  • Patent number: 10396645
    Abstract: A vibration motor includes a stationary portion including a casing and a coil; a vibrator including a magnet, and supported to be capable of vibrating in one direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The magnet is arranged on an upper side of the coil in a vertical direction perpendicular to the one direction. The elastic member includes a fixing portion fixed to a side surface of the vibrator, and a top plate portion joined to the fixing portion, and fixed to an upper surface of the vibrator. The top plate portion is arranged opposite to the magnet in the vertical direction.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 27, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
  • Patent number: 10391871
    Abstract: This disclosure provides systems, methods and apparatus for mitigating electromagnetic radiation emissions. In one aspect, a power transfer device of a wireless electric vehicle charging (WEVC) system is provided. The power transfer device includes a ferrite material and at least one electrically conductive coil. The ferrite material and the at least one coil are configured to wirelessly transfer energy either from or to a second power transfer device of the WEVC system. The power transfer device further includes at least one shield comprising a plurality of electrically conducting regions and one or more electrically insulating regions. The plurality of electrically conducting regions and one or more electrically insulating regions are configured to mitigate electromagnetic radiation emissions from the WEVC system that do not contribute to the wireless power transfer between the at least one electrically conductive coil and the second power transfer device.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: August 27, 2019
    Assignee: WiTricity Corporation
    Inventors: Lin Lu, Paul Guckian, Jagadish Nadakuduti
  • Patent number: 10396644
    Abstract: A vibration motor includes a stationary portion including a base and an annular coil; a vibrator including a magnet, and supported to be capable of vibrating in one direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The base includes a columnar portion arranged to project upward in a vertical direction perpendicular to the one direction. An outside surface of the columnar portion is arranged opposite to an inside surface of the coil.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 27, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
  • Patent number: 10381908
    Abstract: A vibration motor includes a stationary portion including a casing and a coil; a vibrator supported to be capable of vibrating in one direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The vibrator includes a magnet arranged on an upper side of the coil in a vertical direction perpendicular to the one direction, and a weight arranged to hold the magnet. The weight includes a first weight portion in the shape of a plate, and at least one second weight portion arranged to extend downward from a lower surface of the first weight portion. The at least one second weight portion and the coil are arranged opposite to each other in the one direction.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 13, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
  • Patent number: 10376920
    Abstract: This abstract replaces all prior versions of abstract in the application. The linear vibration motor comprises a movable element that is equipped with a magnet portion and a weight portion; a frame that contains the movable element; a coil that is secured to the frame and that drives the magnet portion along an axial direction; an elastic member that is disposed within the frame and that applies, to the movable element, an elastic force that repels the driving force that is applied by the magnet portion; and a guide shaft 8 that is borne on the frame and that guides reciprocating motion of the movable element along the axial direction, wherein: the elastic member rotationally biases the movable element in one direction around the guide shaft 8, and the frame comprises a slide bearing portion (a slide plate) for bearing slidably a portion of the rotationally biased movable element.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: August 13, 2019
    Assignee: Nidec Copal Corporation
    Inventors: Yoshinori Katada, Shin Odajima, Shiori Ishii, Noboru Segawa
  • Patent number: 10367402
    Abstract: A vibration motor includes a stationary portion including a casing and a coil; a vibrator including a magnet, and at least one elastic member. The magnet is arranged on an upper side of the coil. The stationary portion includes at least one projecting portion arranged to project in the vertical direction. A portion of the at least one projecting portion is arranged opposite to a portion of the vibrator in the one direction. The at least one elastic member includes a plate spring portion arranged to support at least one of both ends of the vibrator with respect to the one direction. The plate spring portion includes a decreased width portion and an increased width portion, the decreased width portion being above or below a corresponding one of the at least one projecting portion when viewed from one side in the one direction.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 30, 2019
    Assignee: NIDEC SEIMITSU CORPORATION
    Inventors: Tomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
  • Patent number: 10355572
    Abstract: A vibration motor is disclosed. The vibration motor includes a housing, a substrate engaging with the housing, a vibration unit received in the housing, an elastic member suspending the vibration unit, and a coil assembly interacting with the vibration unit. The vibration unit further includes a slot for receiving a fixing part of the elastic member, and the slot includes a first part having a first width and a second part having a second width greater than the first width, and the first part is relatively closer to a distal end of the second fixing part.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 16, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Zhilin Chai, Na Wu, Fanghua Ling
  • Patent number: 10345907
    Abstract: A haptic actuator may include a housing, coils carried within the housing, and a field member moveable within the housing between the coils and including at least one permanent magnet. A controller may be coupled to the coils and configured to sense a respective back electromotive force (EMF) value of each of the coils and determine a position of the field member in dimensions based upon the back EMF values and motor constant values.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 9, 2019
    Assignee: APPLE INC.
    Inventors: Arman Hajati, Kayo Yanagisawa
  • Patent number: 10328461
    Abstract: The present disclosure relates to a vibration motor, comprising a housing, a vibrator, an elastic member, a first block and a second block; the elastic member comprises first elastic member and second elastic member facing toward each other and each comprises a first fixing portion, two extending portions and two second fixing portions, the first fixing portion is fixed on the first surface, the two extending portion extend from the first fixing portion along two opposite directions and surrounds the second surface, the two second fixing portions are fixed on the side wall away from the first fixing portion; the first block is on a side of the first fixing portion corresponding to the side wall, the second block is on the side wall, faces towards the first block and is spaced from the first block. The second block is adjacent to the second fixing portion and is between the two second fixing portions.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 25, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Fanghua Ling, Wenli Wang
  • Patent number: 10307791
    Abstract: The present application provides a linear vibration motor, including a base, a vibrating unit and an elastic member. The elastic member includes a first elastic member and a second elastic member, the first elastic member includes a first fixing arm, two first elastic arms and two first connecting arms; the two first elastic arms bend and extend from two ends of the first fixing arm, respectively; the two first connecting arms bend and extend from the two first elastic arms, respectively; each of the first elastic member and the second elastic member is arranged in central symmetry with respect to a central axis which goes through a geometric center of the vibrating unit and perpendicular to the vibrating direction. As compared with relevant art, the linear vibration motor of the present application has advantages of simple and high-efficient assembling, good vibrating performance and high reliability.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 4, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Xingzhi Huang, Jinquan Huang, Fanghua Ling
  • Patent number: 10307790
    Abstract: A vibration motor is disclosed. The vibration motor includes a vibration part including a weight and a magnet accommodated in the weight; a fixation part including a housing having an accommodation space, a circuit board fixed in the housing, and a coil opposed to the magnet and connected with the circuit board electrically, the housing including an upper cover, a lower cover opposite to the upper cover, and an outer frame forming the accommodation space with the upper and lower covers; an elastic connector having for elastically suspending the vibration part in the accommodation space of the housing; and an anti-drop protective structure arranged on the outer frame and applied to protection of the elastic connector from collision with the housing when the vibration motor drops.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: June 4, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Yonghua Pu
  • Patent number: 10305357
    Abstract: A vibrator includes a frame, a swing unit, and an elastic member. The swing unit is disposed within the frame and holds a magnet. The elastic member connects the swing unit and the frame. The swing unit is movable with respect to the frame while deforming the elastic member. The frame, the swing unit, and the elastic member are integrally molded with each other.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 28, 2019
    Assignee: MINEBEA CO., LTD.
    Inventor: Manabu Nakamura
  • Patent number: 10277103
    Abstract: A vibration motor is disclosed. The vibration motor includes a housing, a substrate engaging with the housing, a vibration unit received in the housing, an elastic member suspending the vibration unit, and a coil assembly interacting with the vibration unit. The coil assembly includes a coil located between the first magnet assembly and the second magnet assembly, and a coil support carrying the coil. The coil support includes a lower part mounted on the substrate, an upper part for carrying the coil, and a middle part spacing the upper part from the lower part.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: April 30, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Zhilin Chai, Na Wu, Fanghua Ling
  • Patent number: 10270326
    Abstract: The present invention is capable of increasing the thinness of a linear vibration motor equipped with a fixed shaft. The linear vibration motor is equipped with: a frame; one fixed shaft extending in one axial direction and affixed to the frame; a drive unit for driving a magnet in the one axial direction, and equipped with a coil affixed to the frame and the magnet, which is positioned so as to be parallel to the fixed shaft; a needle which is slidably supported in the one direction by the fixed shaft, and is equipped with the magnet and a spindle part connected to the magnet; and an elastic member for imparting an elastic force to the needle in opposition to the driving force of the drive unit, and positioned so as not to be coaxial with the fixed shaft.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: April 23, 2019
    Assignee: NIDEC COPAL CORPORATION
    Inventor: Yoshinori Katada
  • Patent number: 10256710
    Abstract: In a magnetic drive linear actuator, a load attachment portion is fixed to the lower side portion of the rectangular tubular coil frame of a mover, and a light-emitting portion of a position detection portion for detecting the movement position of the mover is fixed to the upper side portion of the coil frame. The load attachment portion and the upper side portion of the coil frame are mutually coupled through beam portions bridged there between. This makes it possible to prevent or suppress the behaviors of the load attachment portion and light-emitting portion from being shifted to each other during high-acceleration driving of the mover, thereby improving the responsiveness and positioning accuracy of the linear actuator.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: April 9, 2019
    Assignee: Harmonic Drive Systems Inc.
    Inventors: Nozomu Tanioka, Syuhei Kobayashi
  • Patent number: 10245618
    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.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 2, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Lubin Mao
  • Patent number: 10164511
    Abstract: A vibration motor is disclosed. The vibration motor includes a housing, a substrate engaging with the housing, a vibration unit received in the housing, an elastic member suspending the vibration unit, and a coil assembly interacting with the vibration unit. The elastic member includes a second fixing part having a first segment with a first width, a second segment having a second width smaller than the first width for forming a step, and the vibration unit includes a latch corresponding to and engaging with the step for positioning the elastic member.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: December 25, 2018
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Zhilin Chai, Na Wu, Fanghua Ling
  • Patent number: 10141824
    Abstract: A vibration motor is disclosed. The vibration motor includes a housing, a substrate engaging with the housing, a vibration unit received in the housing, an elastic member suspending the vibration unit, and a coil assembly interacting with the vibration unit. The vibration unit further includes a slot for receiving a fixing part of the elastic member, and the slot includes a volume recessed toward a direction far away from the fixing part.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: November 27, 2018
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hongfu Xu, Zhilin Chai, Na Wu, Fanghua Ling