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1. 发明专利

JP2002291267A MOTOR CONTROL SYSTEM 失效
公开(公告)号：JP2002291267A
公开(公告)日：2002-10-04
申请号：JP2001095506
申请日：2001-03-29
申请人： MITSUBA CORP
发明人： YANASE ATSUSHI
IPC分类号： H02P1/20
摘要： PROBLEM TO BE SOLVED: To provide a motor control system which makes soft-start possible for reduction of power consumption without increase of parts. SOLUTION: A motor and a relay switch for supplying power selectively to the motor are driven by the same power supply, and the motor control system raising gradually power voltage to make soft-start increasing gradually the rotation of the motor, drop the voltage in the range possible of holding operation of this relay switch after allowing the relay switch to operate before power supply to motor rising power voltage, and if it is, by rising gradually the voltage after that, the relay switch whose working voltage is in the range of voltage to operate the motor and whose reset voltage is lower than the minimum voltage to operate the motor, it is useful without providing another power supply and/or rising/falling voltage circuit. Degree of combination freedom of motor and relay without increase of parts, enlargement.weight of the system or increase of power consumption become high and its general purpose is improved.

2. 发明专利

JPH07250428A SELF-STARTING MOTOR GENERATOR 失效
公开(公告)号：JPH07250428A
公开(公告)日：1995-09-26
申请号：JP4023694
申请日：1994-03-11
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： NAKAGAWA TOSHIMITSU
IPC分类号： H02H7/085 , H02P1/20 , H02P9/08
摘要： PURPOSE:To enhance safety by turning a short circuit switch ON/OFF at the stage of starting a motor in order to regulate the starting current, detecting the current at the main circuit section upon elapse of a predetermined time after turn OFF of a main switch, and then turning a trip contact ON/OFF based on a detection signal. CONSTITUTION:When a main switch 12 is turned ON, a rush current flows into a DC series motor 15. The rush current is regulated by turning short circuit switches 14a-14c ON/OFF. A Hall element 16 detects the current of a main circuit and delivers a signal to a detecting circuit 18. The detecting circuit 18 actuates a trip interrupter 17 based on the detection signal and turns a trip contact 17b OFF thus interrupting the current of main circuit. At the same time, a protective circuit section 19 is formed and an alarm is presented thus enhancing the safety.

3. 发明专利

JPH05328764A MOTOR REVOLUTION CONTROLLER 失效
公开(公告)号：JPH05328764A
公开(公告)日：1993-12-10
申请号：JP12725892
申请日：1992-05-20
申请人： ASMO CO LTD , NIPPON DENSO CO
发明人： ITO TORU , TANAKA TAKESHI
IPC分类号： H02P1/20
摘要： PURPOSE:To raise the repeat reproducibility in a short time of slow start by timely cooling an NTC thermistor, in an object using the NTC thermistor having negative temperature resistance property, so as to gradually raise the number of revolutions by varying the quantity of current to a motor at power on. CONSTITUTION:A power switch 26, a controller 22 for the hooker of the switching mechanism of a shield plate 16, an NTC 15 are connected in series, and they are connected to a motor 11 through a relay switch 24 constituted of bimetal. When a power source switch 26 is off, the heat of NTC 15 is radiated naturally by opening the shield plate 16, and also when the motor 1 gets in rated operation state, and the relay switch 24 is changed over to the NTC pass side, it is cooled compulsorily by the air of an fan by opening the shield plate 16. On the other hand, when turning on the power switch 26 to start the motor 11, the temperature of the NTC is raised by closing the shield plate 16, and the resistance value is reduced gradually to start it slowly, and when the number of revolutions goes up, it is made to perform rated revolution by changing over the relay switch 24.

4. 实用新型

JPS6288486U 失效
公开(公告)号：JPS6288486U
公开(公告)日：1987-06-05
申请号：JP17831585
申请日：1985-11-21
IPC分类号： H02P1/20

5. 发明专利

JPS57196881A AIR CONDITIONER FOR AUTOMOBILE 失效
公开(公告)号：JPS57196881A
公开(公告)日：1982-12-02
申请号：JP7935581
申请日：1981-05-27
申请人： NIHON RADIATOR CO
发明人： TAKAHASHI EIJI
IPC分类号： H02P1/18 , B60H1/00 , H02P1/20
摘要： PURPOSE:To reduce the capacity of a transistor by delaying the rise of a base voltage of the transistor connected in series with a fan motor when the motor is started. CONSTITUTION:Since the collector current of a transistor T1 is partly flowed through a condenser C1 and a resistor R3 to an earth when a fan switch SW is closed ON, the voltage at the point F does not become high until the condenser C1 is charged. Accordingly, the rises of the base voltages of transistors T2, T3 are delayed, and the collector currents of the transistors T2, T3 at the time of starting a fan motor M are reduced. In this manner, the transistors of small capacity can be used.

6. 发明专利

JPS57183281A CONTROLLING CIRCUIT FOR NUMBER OF REVOLUTION 失效
公开(公告)号：JPS57183281A
公开(公告)日：1982-11-11
申请号：JP6799081
申请日：1981-05-06
申请人： NIPPON ELECTRIC CO
发明人： OBARA MASANOBU
IPC分类号： H02P1/20 , H02P6/06 , H02P6/08 , H02P6/17 , H02P6/28
摘要： PURPOSE:To prevent an overvoltage from being applied to a power transistor for controlling a current at the starting time of a motor by connecting a voltage drop element before reaching the prescribed number of revolution of the motor at the starting time. CONSTITUTION:A switching controlling circuit 8 conducts transistors 9-11 connected in series with motor coils 13-15 ON in response to the output of a Hall element which detects the rotating position of a rotor. On the other hand, a transistor 12 is controlled by a number of revolution control signal. A current is flowed through the motor via a resistor 23 at the time of starting the motor. When the number of revolution of the motor becomes the prescribed value, a relay 25 is closed, thereby shortcircuiting the resistor 23. In this manner, overvoltage is prevented from being applied to a power transistor at the time of starting the motor.

7. 发明专利

JPS566206B2 失效
公开(公告)号：JPS566206B2
公开(公告)日：1981-02-10
申请号：JP15360075
申请日：1975-12-23
IPC分类号： H02P1/20 , B60L15/14 , B60L15/22

8. 发明专利

JPS55111604A ELECTRIC MOTOR VEHICLE CONTROLLER 失效
公开(公告)号：JPS55111604A
公开(公告)日：1980-08-28
申请号：JP1731479
申请日：1979-02-19
申请人： HITACHI LTD
发明人： ENDOU NORIO
IPC分类号： H02P1/20 , B60L15/20 , B60L15/22
摘要： PURPOSE:To provide an electric motor vehicle controller which is inexpensive and preferable space efficient by employing the portion to be used only at starting time of a resistor connected in series with a DC motor as a vernier resistor. CONSTITUTION:Vernier resistance shorting contactors VR1-VR3 are connected as resistance value switching means to a starting rheostat SRe, and a breaker VK for connecting in parallel vernier resistors is connected thereto. When starting is completed and the rheostat SRe is shorted by the closure of the circuit of a resistor shorting breaker V1 and a resistor shorting contactor RO, a resistor inserting contactor RX is opened to separate the rheostat SRe, and by using the rheostat SRe as a vernier resistor series resistors MRe1-MRe3 are sequentially connected in parallel in every section by the contactors VR1-VR3 to thus finely control the resistance value. The starting rheostat SRe is used thus as a vernier resistor to improve inexpensively the space efficiency of an electric motor vehicle controller.

9. 发明专利

JPS5532081B2 失效
公开(公告)号：JPS5532081B2
公开(公告)日：1980-08-22
申请号：JP9787474
申请日：1974-08-28
IPC分类号： B60L3/04 , B60L3/00 , H02P1/20

10. 发明专利

JPS553914B2 失效
公开(公告)号：JPS553914B2
公开(公告)日：1980-01-28
申请号：JP1165472
申请日：1972-02-01
IPC分类号： H02P1/20 , H02P7/06

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