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1. 发明专利

JPH06139749A DRIVE CONTROL DEVICE OF DC MOTOR 失效
公开(公告)号：JPH06139749A
公开(公告)日：1994-05-20
申请号：JP29054892
申请日：1992-10-28
申请人： FUJITSU LTD
发明人： SAKUMA KIYOSHI
IPC分类号： G11B19/20 , G11B25/04 , H02P1/02
摘要： PURPOSE:To stably start a DC motor without causing a large electric current to flow through the DC motor when the DC motor is started at a low temperature. CONSTITUTION:The drive control device of the DC motor is composed of a temperature senser 2 detecting the temperature of the DC motor 1, a heating part 3 heating the DC motor 1 and a heating control part 4 operating the heating part 3 when the temperature of the motor is less than the prescribed value.

2. 实用新型

JPH0314244Y2 失效
公开(公告)号：JPH0314244Y2
公开(公告)日：1991-03-29
申请号：JP1577186
申请日：1986-02-07
IPC分类号： H02P1/02 , B23B31/117 , B23Q3/12

3. 发明专利

JPS60241793A INVERTER DEVICE 失效
公开(公告)号：JPS60241793A
公开(公告)日：1985-11-30
申请号：JP9451984
申请日：1984-05-14
申请人： HITACHI LTD
发明人： TOUFUJI YASUMASA , SHIMOZU TADAO , YAMAMOTO TOSHIHIKO
IPC分类号： H02P8/00 , H02P1/02 , H02P27/06
摘要： PURPOSE:To stably, reliably and rapidly perform instantaneous stop time automatic restart by reducing a current control and voltage control system at instantaneous stop occurring time, and starting the current and voltage control buffer start after the recovery. CONSTITUTION:When an instantaneous stop occurs, an instantaneous stop and recovery detector 101 detects the instantaneous stop, and outputs a signal to an automatic restarter 107. Command signals of ACR (current controller) and AVR (voltage controller) are set to zero by ACR throttle.ACR buffer starter 121, and AVR throttle.AVR buffer starter 122 to prevent the amplifiers of the ACR and AVR from saturating for the instantaneous stop time automatic restart. After the recovery, the ACR buffer start and AVR buffer start are initialized by the restart signal of the starter 107.

4. 发明专利

JPS5935597A Control system for refrigerator 失效
标题翻译：冷冻机控制系统
公开(公告)号：JPS5935597A
公开(公告)日：1984-02-27
申请号：JP14590782
申请日：1982-08-21
申请人： Mitsubishi Electric Corp
发明人： TSUJI HIROYUKI
IPC分类号： H02P25/04 , F04B49/06 , F04B49/10 , F25B1/00 , H02P1/02 , H02P27/06
CPC分类号： H02P1/02
摘要： PURPOSE:To normally avoid a resonance frequency operation during a control operation by operating a refrigerator by a microcomputer and an acceleration detector once at the starting time from the minimum to the maximum from set low frequency to the maximum speed of a variable frequency range, measuring the resonance frequency, and storing it. CONSTITUTION:The resonance speeds from the lowest speed to the highest speed are detected by an acceleration detector 5, and all stored in an RAM of a microcomputer 1. After a refrigerator 4 is altered to a required rotating speed, the microcomputer 1 discriminates whether the rotating speed is the resonance frequency stored in the RAM or not. When it is discriminated to be out of the resonance frequency, the refrigerator 4 is operated at the required operating speed. When it is discriminated to be in the frequency band of inhibiting the operation, the microcomputer 1 alters to the stable rotating speed around the required rotating speed.
摘要翻译：目的：为了在通过微型计算机和加速度检测器操作冰箱的一个控制操作期间通常避免共振频率操作，在从设定的低频到可变频率范围的最大速度的从最小到最大的开始时间一次，测量共振频率，并存储。构成：从最低速度到最高速度的共振速度由加速度检测器5检测，全部存储在微型计算机1的RAM中。在将冰箱4改变为所需的转速后，微型计算机1判别是否转速是存储在RAM中的共振频率。当鉴别为不在谐振频率时，冰箱4以所需的操作速度运行。当判断为在禁止操作的频带中时，微型计算机1改变围绕所需旋转速度的稳定转速。

5. 发明专利

JPS5928074A Electromagnetic pump with pressure rise delay unit 失效
标题翻译：带压力上升单元的电磁泵
公开(公告)号：JPS5928074A
公开(公告)日：1984-02-14
申请号：JP13566282
申请日：1982-08-05
申请人： Taisan Kogyo Kk
发明人： TOYOSHIMA TSUNEYOSHI , SAITOU MASAYUKI
IPC分类号： F04B17/04 , F23N1/00 , H02P1/02 , H02P1/16
CPC分类号： H02P1/026
摘要： PURPOSE:To accelerate the pressure rise of fuel oil and to improve the combustion performance in an electromagnetic pump for a combustion device which is driven by half wave of AC by connecting the electromagnetic coil in series with a control rectifier and synchronizing the ON and OFF actions of the rectifier with a power source. CONSTITUTION:When a switch 6 is closed, an AC voltage from a power source 5 is half-wave rectified by a half-wave rectifying and signal constant voltage block 1, maintained at the constant voltage, and supplied to a phase angle control signal block 2 and a phase angle gradual increase block 3. The signal constant voltage is divided by resistors R2, R3 in the block 2, applied as a reference voltage to the gate G of a PUT, and a capacitor C1 is charged through R4, VR1, R5. When the voltage of the C1 rises and the PUT is closed, a controlled rectifier SCR in the block 4 is energized, and an electromagnetic pump P is started. After the fuel is ignited, the block 3 is operated to gradually raise secondarily the pressure of the fuel oil to the normal combustion pressure.
摘要翻译：目的：通过将电磁线圈与控制整流器串联连接，加速燃料油的压力上升，提高燃料电磁泵的燃烧性能，该电磁泵由半波交流驱动，同步开关动作的整流器与电源。构成：当开关6闭合时，来自电源5的交流电压由半波整流和信号恒定电压块1进行半波整流，保持恒定电压，并提供给相位角控制信号块信号恒定电压由块2中的电阻器R2，R3分压，作为基准电压施加到PUT的栅极G，电容器C1通过R4，VR1， R5。当C1的电压上升并且PUT闭合时，块4中的可控整流器SCR通电，并且电磁泵P启动。在燃料点燃之后，操作块3以逐渐将燃油的压力升高到正常燃烧压力。

6. 发明专利

JPS5815473A DC MOTOR DRIVE CIRCUIT 失效
公开(公告)号：JPS5815473A
公开(公告)日：1983-01-28
申请号：JP11160181
申请日：1981-07-17
申请人： TOKYO ELECTRIC CO LTD
发明人： FUJII NOBUHIKO
IPC分类号： H02P1/18 , H02P1/02 , H02P3/12 , H02P7/288
摘要： PURPOSE:To prevent the simultaneous operation of a start circuit and a stop circuit at the time of switching control signals ON and OFF by displacing the operating timings of a motor drive power transistor and a brake power transistor. CONSTITUTION:When a motor is started, a control signal MTC becomes LOW level, and a transistor Q2 is conducted. Since Zener diode voltage is applied to a transistor Q4, the latter is forwardly biased and is conducted, while a transistor Q3 is interrupted. When the transistor Q4 is conducted, a transistor Q6 is conducted, thereby starting a motor M. When the transistor Q3 is interrupted, a transistor Q5 is not conducted, thereby causing a brake circuit not to be operated.

7. 发明专利

JPS5812590A SAFETY OPERATION DEVICE FOR MATERIAL HANDLING MACHINE 失效
公开(公告)号：JPS5812590A
公开(公告)日：1983-01-24
申请号：JP10900981
申请日：1981-07-13
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： SAKURAI TAKESHI
IPC分类号： H02P7/06 , B66C9/14 , B66C13/22 , H02P1/02
摘要： PURPOSE:To improve the reliability of a safety operating device for a material handling machine by outputting a stop signal when the difference between an acceleration or deceleration speed set by the armature current and the field magnetic flux of a motor and the actual accelerating or decelerating speed is higher than the prescribed value. CONSTITUTION:A current detector CDf detects a field current If and outputs a corresponding field magnetic flux signal K1phi. A current detector CDa detects an armature current Ia and outputs a corresponding current signal. A function generator FUN inputs the signal Ia and the signal K1phi and outpts a set acceleration signal dN/dt. A comparator COMP outputs a stop signal S when the difference between the actual acceleration signal dNr/dt differentiated from the actual rotating speed Nr of a motor M and the set acceleration signal dN/dt is higher than the prescribed value. In this manner, the reliability of the safety operating device can be improved.

8. 实用新型

JPS57189251U 失效
公开(公告)号：JPS57189251U
公开(公告)日：1982-12-01
申请号：JP7452581
申请日：1981-05-25
IPC分类号： H02P1/16 , H01R4/30 , H02K5/22 , H02P1/02

9. 发明专利

JPS56157284A START LIMIT INDICATOR FOR INDUCTION MOTOR 失效
公开(公告)号：JPS56157284A
公开(公告)日：1981-12-04
申请号：JP6137080
申请日：1980-05-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： NIOKA RIYUUNOSUKE
IPC分类号： H02P1/26 , H02P1/02
摘要： PURPOSE:To prolong the lifetime of an induction motor by providing a temperature relay having the same characteristics as the heat dissipating characteristics of the motor to operate an indicator, thereby preventing the start of the motor exceeding the allowable starting frequency. CONSTITUTION:When the breaker of an induction motor is closed, its auxiliary normaly open contact 2a is closed, a current will flow through a temperature relay 3 having the same characteristics as the heat dissipating characteristics of the motor, and the output contact 4 is closed after a predetermined time. Since an auxiliary normally closed contact 2b is opened at this time, the indicator 5 is not energized. When the breaker is then opened, the contact 2b is closed, and the indicator 5 continues to turn ON until the output contact 4 of the relay 3 is opened. Accordingly, the indicator 5 can be turned ON until the temperature of the motor becomes a predetermined level, thereby monitoring the restart and preventing the restart more than required and thus prolonging the lifetime of the motor.

10. 实用新型

JPS5649157Y2 失效
公开(公告)号：JPS5649157Y2
公开(公告)日：1981-11-17
申请号：JP230777
申请日：1977-01-11
IPC分类号： H02P1/16 , H01H47/18 , H02P1/02 , H03K5/153 , H03K17/28 , H03K17/292

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