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公开(公告)号：US20230384653A1
公开(公告)日：2023-11-30
申请号：US18446815
申请日：2023-08-09
申请人： LG INNOTEK CO., LTD.
发明人： Sang Ok Park , Seong Min Lee
IPC分类号： G03B13/34 , G02B7/02 , H02K41/03 , H02K41/035 , H02K37/12 , G03B3/10 , G02B13/00 , G02B7/10 , G02B7/08 , G02B7/04
CPC分类号： G03B13/34 , G02B7/02 , H02K41/03 , H02K41/035 , H02K41/0354 , H02K37/12 , G03B3/10 , G02B13/009 , G02B7/102 , G02B7/08 , H02K41/0356 , G02B7/04 , G02B13/001 , G03B13/32
摘要： A VCM is disclosed, the motor including a stator including a first driving unit, a rotor arranged inside the stator, including a second driving unit responding to the first driving unit and mounted therein with a lens, a base fixing the stator, and an elastic member coupled to the rotor to float the rotor from the base in a case a driving signal for driving the first and second driving units is not applied to the first and second driving units.
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公开(公告)号：US20220231563A1
公开(公告)日：2022-07-21
申请号：US17572677
申请日：2022-01-11
申请人： Nidec Corporation
发明人： Tomoki UCHIBORI
摘要： A stator includes a cylindrical shaft extending in an axial direction, annular portions positioned side by side in the axial direction radially outside the shaft and extending in a radial direction, pole teeth extending in the axial direction from a radially outer end portion of each of the annular portions, and one or more coils between the annular portions adjacent to each other in the axial direction and wound around the shaft. The shaft includes at least one slit recessed radially inward from an outer peripheral surface of the shaft and extending along the axial direction. A portion of the at least one slit is radially inside the annular portion. A lead wire of the coil is accommodated in the at least one slit.
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公开(公告)号：US20220231549A1
公开(公告)日：2022-07-21
申请号：US17572673
申请日：2022-01-11
申请人： Nidec Corporation
发明人： Tomoki UCHIBORI
摘要： A stator includes a first sleeve extending in an axial direction and a first stator core on an outer periphery of the first sleeve. The first stator core includes a lower core and an upper core on a side of the lower core opposed to a first end of the axial direction. The lower core includes a lower annular portion with an annular shape and lower pole teeth protruding radially outward from a radially outer end surface of the lower annular portion and extending to a second end of the axial direction. The upper core includes an upper annular portion with an annular shape arranged on the lower annular portion opposed to the first end of the axial direction to overlap the lower annular portion, and upper pole teeth protruding radially outward from a radially outer end surface of the upper annular portion and extending to the second end of the axial direction. Each of the lower pole teeth and each of the upper pole teeth are alternately arranged in the circumferential direction.
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4.发明授权公开(公告)号：US10742147B2
公开(公告)日：2020-08-11
申请号：US16261719
申请日：2019-01-30
申请人： MINEBEA MITSUMI Inc.
发明人： Kazuo Takada , Takayuki Matsui
摘要： A motor control circuit includes an input voltage measuring unit, a temperature measuring unit, a speed setting unit, and a speed control unit. The input voltage measuring unit measures an input voltage input to a motor control device. The temperature measuring unit measures the temperature. The speed setting unit sets a target value of driving speed of a stepping motor based on a measurement result of the input voltage measuring unit, a measurement result of the temperature measuring unit and based on a set value of driving speed preset for each of the plural partial areas which are sectioned in a matrix form with a threshold value related to the input voltage and a threshold value related to the temperature. The speed control unit controls the driving speed according to the target value of the driving speed set in the speed setting unit.
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5.发明申请公开(公告)号：US20200027480A1
公开(公告)日：2020-01-23
申请号：US16513585
申请日：2019-07-16
发明人： David Myers , Diep Nguyen , Bikash Sukla
摘要： An approach to a reduced-head hard disk drive (HDD) involves an actuator subsystem that includes a ball screw cam assembly wherein the number of starts of a multi-start screw equals the number of balls riding in a corresponding start. A stepper motor may be disposed within the screw, to drive rotation of the screw, which drives translation of an actuator arm assembly so that a corresponding pair of read-write heads can access different magnetic-recording disks of a multiple-disk stack. The actuator subsystem may further include a cam locking mechanism for coupling and decoupling the actuator arm with a coil support structure and corresponding voice coil, so that the cam mechanism is able to move under the control of a voice coil motor when input/output operations are performed and is able to move the actuator arm assembly during translation operations.
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公开(公告)号：US10511248B2
公开(公告)日：2019-12-17
申请号：US15391704
申请日：2016-12-27
发明人： Yuta Saito
摘要： A stepping motor includes a rotor, a stator and three coils. The rotor is two-pole magnetized in a radius direction. The stator is provided with a rotor receiving section for receiving the rotor. The three coils are magnetically connected with the stator. At least one of the three coils is an integrated coil which is integrally formed with the stator by winding a coil around a part of the stator.
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公开(公告)号：US20180152129A1
公开(公告)日：2018-05-31
申请号：US15881284
申请日：2018-01-26
发明人： Yuta SAITO
摘要： A motor drive device includes a motor drive circuit which drives a stepping motor provided with three coils; a switching element for controlling a path through which a current for driving at least one of the coils flows; and a driving pulse generator which outputs a driving pulse to the switching element. The driving pulse generator outputs the driving pulse to the switching element so that the current for driving at least one of the coils flows through one path.
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公开(公告)号：US20170358975A1
公开(公告)日：2017-12-14
申请号：US15540182
申请日：2016-02-09
申请人： SAF-HOLLAND GmbH
发明人： Olaf Drewes
CPC分类号： H02K21/227 , F16D65/18 , F16D65/183 , F16D2065/386 , H02K7/06 , H02K7/102 , H02K7/1021 , H02K7/14 , H02K19/02 , H02K21/14 , H02K21/145 , H02K21/22 , H02K37/12 , H02K37/24
摘要： An adjustment unit, particularly for use in a commercial vehicle brake, comprising a stator and a rotor, wherein the stator and/or rotor have a coil arrangement, wherein the rotor is mounted in such a way that it can rotate about an actuation axis relative to the stator, and the stator is secured in such a way that it cannot rotate about the actuation axis relative to a main body, wherein it is possible to generate, in the coil arrangement, a magnetic field which rotates the rotor relative to the stator, wherein the rotor is in engagement with a first transmission section in such a way that a rotation of the rotor results in shifting of the first transmission section relative to the stator along the actuation axis.
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公开(公告)号：US20170343886A1
公开(公告)日：2017-11-30
申请号：US15679975
申请日：2017-08-17
申请人： LG INNOTEK CO., LTD.
发明人： Sang Ok Park , Seong Min Lee
IPC分类号： G03B13/34 , G02B7/02 , H02K41/03 , H02K37/12 , G03B3/10 , G02B15/14 , G02B13/00 , G02B7/10 , G02B7/08 , H02K41/035 , G02B7/04 , G03B13/32
摘要： A VCM is disclosed, the motor including a stator including a first driving unit, a rotor arranged inside the stator, including a second driving unit responding to the first driving unit and mounted therein with a lens, a base fixing the stator, and an elastic member coupled to the rotor to float the rotor from the base in a case a driving signal for driving the first and second driving units is not applied to the first and second driving units.
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公开(公告)号：US20170279395A1
公开(公告)日：2017-09-28
申请号：US15391704
申请日：2016-12-27
发明人： Yuta SAITO
摘要： A stepping motor includes a rotor, a stator and three coils. The rotor is two-pole magnetized in a radius direction. The stator is provided with a rotor receiving section for receiving the rotor. The three coils are magnetically connected with the stator. At least one of the three coils is an integrated coil which is integrally formed with the stator by winding a coil around a part of the stator.
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