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1. 发明专利

JP2007312477A Motor operating switch 审中-公开
标题翻译：电机操作开关
公开(公告)号：JP2007312477A
公开(公告)日：2007-11-29
申请号：JP2006137552
申请日：2006-05-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KAWAI KOJI
IPC分类号： H02P3/20
摘要： PROBLEM TO BE SOLVED: To provide a reliable motor operating switch where arc generated between contacts tends to vanish, when switching two sets of changeover switches over, from NO side to NC side.
SOLUTION: The field coil 5 of a commutator motor (not shown) is connected between the COM terminals of changeover switches 3 and 4. The armature coil 6 of the commutator motor is connected between the NC terminal and the NO terminal of the changeover switch 3. A power source 7 is connected between the NC terminal of the changeover switch 3 and the NO terminal of the changeover switch 4. When short-circuiting the NO terminal of the changeover switch 3 and the NC terminal of the changeover switch 4 with each other, since switching the changeover switches 3 and 4 from the NO side to the NC side, the changeover switch 4 is switched ahead of the changeover switch 3. The contact of the changeover switch 4 is short-circuited first by arc, and the field coil 5 is short-circuited, so that the induced electromotive force by the inductance of the field coil 5 disappears, and arc vanishes, whereby the reliability on the contact can be raised.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供可靠的马达操作开关，当从NO侧到NC侧切换两组切换开关时，触点之间产生的电弧趋于消失。
解决方案：换向器电动机（未示出）的励磁线圈5连接在转换开关3和4的COM端子之间。换向器电动机的电枢线圈6连接在NC端子和NO端子的NO端子之间电源7连接在转换开关3的NC端子和转换开关4的NO端子之间。当切换开关3的NO端子和转换开关4的NC端子短路时彼此之间，由于将切换开关3和4从NO侧切换到NC侧，所以转换开关4在切换开关3之前切换。切换开关4的触点首先被电弧短路，励磁线圈5短路，使得由励磁线圈5的电感引起的感应电动势消失，电弧消失，能够提高接触的可靠性。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP3783359B2 Motor drive circuit 失效
公开(公告)号：JP3783359B2
公开(公告)日：2006-06-07
申请号：JP23526297
申请日：1997-08-29
申请人：ソニー株式会社
发明人：英生小幡
IPC分类号： H02P3/20 , H02P6/24

3. 发明专利

JP2005198394A Motor braking device 审中-公开
标题翻译：电动制动装置
公开(公告)号：JP2005198394A
公开(公告)日：2005-07-21
申请号：JP2004001079
申请日：2004-01-06
申请人： Ito Denki Kk , 伊東電機株式会社
发明人： TACHIBANA TOSHIYUKI
IPC分类号： H02P3/18 , H02P3/20 , H02P6/24
摘要： PROBLEM TO BE SOLVED: To stop a motor suitably in response to an external force given to the motor. SOLUTION: The motor 2 starts rotating by the supply of a drive command, and rotates by the external force after a stop command is supplied. A rotating direction detector 8 generates a rotating direction detection signal representing the rotating direction of the motor 2, and a signal of the amount of a rotating angle for every rotation of the predetermined angle of the motor 2. An up and down counter 44 changes the counting direction each time the direction represented by the rotating direction detection signal changes. The up and the down counter 44 counts the rotation signal. The counting is started in response to a servo command to the motor 2. A motor driving device 6 supplies a current responsive to the counted value of the up and down counter 44 to the motor 2 in the direction reverse to the direction represented by the rotating direction detection signal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：根据给予电机的外力来适当地停止电动机。解决方案：电机2通过提供驱动指令开始转动，并在提供停止命令后通过外力旋转。旋转方向检测器8产生表示电动机2的旋转方向的旋转方向检测信号和电动机2的预定角度的每次旋转的旋转角度的信号。上下计数器44改变每当由旋转方向检测信号表示的方向改变时，计数方向。上下计数器44对旋转信号进行计数。响应于对电动机2的伺服指令开始计数。电动机驱动装置6响应于上下计数器44的计数值向与电动机2相反的方向提供电流，该方向与由旋转方向检测信号。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004343902A Drive control method for motor having dynamic pressure bearing 审中-公开
公开(公告)号：JP2004343902A
公开(公告)日：2004-12-02
申请号：JP2003138075
申请日：2003-05-16
申请人： Canon Electronics Inc , キヤノン電子株式会社
发明人： IMAI YASUAKI
IPC分类号： F16C17/00 , H02P3/20
摘要： PROBLEM TO BE SOLVED: To shorten an establishment time and a stopping time of a motor having a dynamic pressure bearing.
SOLUTION: A torque control voltage 20 controls a driving current 30 of a scanner motor which rotates a polygon mirror. It is accelerated by generating normal rotation torque at the time of starting the motor until the rotational frequency 40 of the motor reaches a target rotational frequency (an acceleration period T1). It executes rated operations after the establishment time T2 by the reverse rotation torque (a rated rotation period T3). It executes reverse phase braking by the reverse rotation torque to a prescribed rotational frequency N
limit before reaching the critical rotational frequency of the dynamic pressure bearing (a reverse phase braking time T5) when the motor is stopped. After that, it is stopped by free run or short brake (a slow-speed braking time T6).
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2001184813A DISK REPRODUCING DEVICE 失效
公开(公告)号：JP2001184813A
公开(公告)日：2001-07-06
申请号：JP2000352125
申请日：2000-11-20
申请人： SHARP KK
发明人： OKAMURA KOJI
IPC分类号： G11B21/08 , G11B7/085 , H02P3/20
摘要： PROBLEM TO BE SOLVED: To insure a feed speed in a rapid feed mode and also to enable a stable creep feed without being affected by the variance of the minimum starting voltage of each motor. SOLUTION: In this disk reproducing device that is provided with a slide feed motor feeding a slide part where a pickup is mounted in the radial direction of a disk and brakes the slide feed motor by supplying the voltage of a reverse rotation direction to the slide feed motor to make braking force influence after slide feed, a pulse width is detected from a track cross signal, the speed of the slide part is also operated from the signal and additional brake time (t) is set.

6. 发明专利

JPH11308886A ELECTRICALLY-CONTROLLED BRAKING DEVICE 失效
公开(公告)号：JPH11308886A
公开(公告)日：1999-11-05
申请号：JP11112498
申请日：1998-04-21
申请人： AKEBONO RES & DEV CENTRE
发明人： NAKAZATO AKIHIRO , OGAWA YUTAKA
IPC分类号： H02P3/10 , H02P3/20
摘要： PROBLEM TO BE SOLVED: To provide an electrically-controlled braking device which can exert a strong braking force, even in a low speed region though the device uses an electric brake. SOLUTION: An electrically-controlled braking device is provided with a rotational direction sensor 2 which detects the rotation of direction of one wheel 1 of a vehicle, a motor 3 coupled with the wheel 1, a power source 4 which supplies electric current to the motor 3, a brake sensor 6 which detects the stepping force applied to the brake pedal 5 of the vehicle, and a control circuit 7 which controls the electric current supplied to the motor 3 to generate driving torque in a direction opposite to the direction of rotation of the wheel 1, in accordance with the signal from the sensor 6. Since the braking device is constituted in such a way that the electric current supplied to the motor 3 is controlled to generate the driving torque in the direction opposite to the direction of wheel rotation 1 in accordance with deceleration, a large braking force can be obtained over a wide speed range from a high speed to a low speed by electric control only.

7. 发明专利

JPH11299276A METHOD FOR CONTROLLING STOPPAGE OF ELECTRIC MOTOR 失效
公开(公告)号：JPH11299276A
公开(公告)日：1999-10-29
申请号：JP9780798
申请日：1998-04-09
申请人： KOKUSAN DENKI CO
发明人： SHINBA KAORU
IPC分类号： H02P3/20
摘要： PROBLEM TO BE SOLVED: To reduce the dispersion of time required, until an electric motor stops when inversion braking is executed at the stopping of the electric motor. SOLUTION: A generation interval between a pulse signal Vpn-1 before the last pulse signal Vpn in a series of pulse signals which a rotary encoder generates, while rotary speed N becomes zero in a process, when the rotary speed N of an electric motor drops and a previous pulse signal Vpn-2 by two is set to be lowest speed detection time τ, and the rotary speed of the electric motor when the last pulse signal Vpp is generated is set to be lowest detection rotary speed NL. Lowest speed detection time τ which is optimum for setting lowest detection rotary speed to be rotary speed at the stopping of the supply of braking current is operated. The supply of braking current to the electric motor is stopped, when the pulse signal is generated next, after that the generation interval of the pulse signal becomes not less than lowest speed detection time τ.

8. 发明专利

JP2926263B2 失效
公开(公告)号：JP2926263B2
公开(公告)日：1999-07-28
申请号：JP21058990
申请日：1990-08-08
申请人： KOPARU KK , FUJITSU KK
发明人： YAMADA EIJI
IPC分类号： H02P3/10 , H02P3/20

9. 发明专利

JP2834288B2 失效
公开(公告)号：JP2834288B2
公开(公告)日：1998-12-09
申请号：JP18896190
申请日：1990-07-17
申请人： MATSUSHITA DENKI SANGYO KK , SANYO DENKI KK
发明人： TSUBOCHI TOSHIKI , YASOHARA MASAHIRO , NAKANO HIROMITSU , OGINO KOICHIRO , SHIMAZAKI TSUTOMU
IPC分类号： H02P3/20 , H02P6/06 , H02P6/08 , H02P6/24 , H02P29/00

10. 发明专利

JP2782578B2 失效
公开(公告)号：JP2782578B2
公开(公告)日：1998-08-06
申请号：JP8263294
申请日：1994-03-30
申请人： ERU JII DENSHI KK
发明人： HAYASHI TOSHE
IPC分类号： H02P3/20 , H02P25/08 , H02P25/098 , H02P29/40 , H02P7/05

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